CN112972792B - Pediatric negative pressure intelligent control gastric lavage device - Google Patents

Abstract

The invention discloses a pediatric negative pressure intelligent control gastric lavage device, which comprises an equipment mounting seat, wherein a gastric lavage liquid storage box for quantitatively pumping gastric lavage liquid and a negative pressure container for sucking and storing by continuously generating negative pressure are arranged on the equipment mounting seat, and an electromagnetic three-way gastric tube communicated with the gastric lavage liquid storage box or the negative pressure container respectively through a pipeline is arranged on the equipment mounting seat; install on the equipment mount pad and guide negative pressure container mounted position and detect negative pressure container real-time parameter's container detection mechanism, install on the equipment mount pad with negative pressure adjustment mechanism of negative pressure container inside intercommunication is through connecting mechanical pressure regulating mechanism on sealed container, through the weight parameter to negative pressure sealed container at the in-process detection container holding suction thing that aspirates control mechanical pressure regulating mechanism increases pressure or reduces pressure to this guarantee sealed negative pressure container aspiration's effect, and promote the comfort level of stomach tube at the stomach aspiration.

Description

A Pediatric Negative Pressure Intelligent Control Gastric Lavage Device

technical field

The invention relates to the technical field of gastric lavage devices, in particular to a pediatric negative pressure intelligent control gastric lavage device.

Background technique

Gastric lavage refers to pouring a certain amount of liquid into the gastric cavity, mixing the contents of the stomach and then drawing it out, so as to remove the unabsorbed poison in the stomach repeatedly. In the process of gastric lavage for children, the gastric lavage device cooperates correctly The convenient gastric lavage method can effectively reduce the absorption of poisons or drugs, which can not only improve the success rate of rescue, but also reduce the workload and labor intensity of medical staff.

The gastric lavage device needs to cooperate with the device to generate continuous suction force to suck the undigested mixture in the patient's stomach sequentially, and the suction speed of the mixture, the remaining amount of the mixture, the blockage of the mixture and other factors should be considered during the suction process. During the actual use of the device, the medical staff needs to frequently adjust the negative pressure device according to the situation, which makes the work intensity of the medical staff relatively high.

Moreover, the negative pressure device of the gastric lavage device in the prior art generally uses the pump body to directly communicate with the gastric tube, and the suction generated by the suction pump directly sucks the mixture in the stomach, and there are many parts contaminated by the mixture in the stomach during the second process Therefore, after each use, the components and the suction pump need to be cleaned more tediously. Multiple cleanings will greatly shorten the service life of the suction pump and increase the probability of damage to the drawer pump.

Contents of the invention

The purpose of the present invention is to provide a pediatric negative pressure intelligent control gastric lavage device to solve the problems in the prior art that the medical staff frequently adjust the negative pressure device according to the situation, and the repeated cleaning of the suction pump will greatly shorten the service life. .

In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

A pediatric negative pressure intelligently controlled gastric lavage device, comprising an equipment mounting base, a gastric lavage liquid storage tank for quantitatively pumping gastric lavage liquid is installed on the equipment mounting base, and a negative pressure pump for suction and storage by continuously generating negative pressure. A pressure container, an electromagnetic three-way gastric tube that is respectively connected to the gastric lavage liquid storage tank or the negative pressure container through pipelines is installed on the equipment mounting seat;

A container detection mechanism that guides the installation position of the negative pressure container and detects the real-time parameters of the negative pressure container is installed on the equipment mounting base, and a negative pressure regulator that communicates with the interior of the negative pressure container is installed on the equipment mounting base. mechanism, the negative pressure regulating mechanism pressurizes or depressurizes the interior of the negative pressure container by cooperating with the detection signal of the container detection mechanism;

The negative pressure regulating mechanism is equipped with a double pressure relief mechanism that cooperates with the negative pressure regulating mechanism to pressurize the interior of the negative pressure container for a small amount of pressure relief, and the double pressure relief mechanism cooperates with the container detection mechanism to The interior of the negative pressure container is emergency depressurized.

As a preferred solution of the present invention, the container detection mechanism includes a negative pressure container detection mechanism for detecting the weight parameters of the negative pressure container in real time, a container rolling and folding mechanism for positioning and rolling to clamp the negative pressure container, and a cooperating The negative pressure container is installed with a sealed snap-fit cover forming a closed space, and a vacuum pump that continuously generates negative pressure inside the negative pressure container.

As a preferred solution of the present invention, the container rolling and folding mechanism includes an electric control installation box fixedly installed on the equipment mounting seat, and two sets of electric control installation boxes are installed on the electric control installation box. The elastic rolling jaws arranged symmetrically to the longitudinal central axis, and the inner sides of the two sets of elastic rolling jaws are provided with a plurality of equidistantly arranged flexible rolling units for flexibly rolling the outside of the negative pressure container, The two groups of elastic rolling jaws roll and guide the negative pressure container to be at the top measurement position of the negative pressure container detection mechanism through the flexible rolling unit inside.

As a preferred solution of the present invention, the inner side of the elastic rolling jaws is an arc-shaped structure with a radian smaller than the outer side of the negative pressure container, and the center points of the inner arc structures of the two elastic rolling jaws are located at On the central axis of the negative pressure container detection mechanism, the tail ends of the two elastic rolling jaws are hinged with a tail hinge plate through rotation, and the inner sides of the two elastic rolling jaws are hinged with an inner hinge frame hinge, the tail hinge plate cooperates with the inner hinge frame to form a diamond-shaped hinge structure that folds or unfolds the two elastic rolling jaws through deformation, and the electric control installation box is rotatably connected with a The hinge plate is connected with the inner hinged frame through a deformation driving screw threaded, and the deformation driving screw controls the two elastic rolling jaws to be folded or unfolded through bidirectional rotation.

As a preferred solution of the present invention, a plurality of the flexible rolling units are arranged equidistantly along the inner arc structure of the elastic rolling jaws, and the flexible rolling units include The inner central axis of the through hole is horizontally connected with a horizontal rotating shaft, and the outer side of the horizontal rotating shaft is connected with a rigid roller sleeve. The flexible roller outer ring on the outside of the pressure vessel, the rigid roller sleeve cooperates with the flexible roller outer ring to integrally form a spherical structure that rotates longitudinally around the outer side of the horizontal rotation axis.

As a preferred solution of the present invention, the negative pressure container detection mechanism includes a weight detection device located directly below the elastic rolling jaws and detects the weight parameters of the negative pressure container, and is installed on the sealed snap-fit cover A pressure detection device for real-time detection of the internal pressure of the negative pressure container, and a pressure detection device installed inside the electric control installation box to control the negative pressure by receiving and processing the detection parameters of the weight detection device and the pressure detection device A signal processing control device for regulating the operating state of the mechanism and the double pressure relief mechanism, and the signal processing control device is used to control the solenoid valve of the electromagnetic three-way gastric tube and the switch of the vacuum pump.

As a preferred solution of the present invention, the negative pressure adjustment mechanism includes a power installation box installed on the electric control installation box, and the inner fixed clamp of the power installation box is connected with the sealing buckle cover and The pressure-regulating piston injector that pressurizes or depressurizes the inside of the negative pressure container is drawn, and the power installation box is equipped with a quantitative push-pull mechanism to receive the weight parameter measured by the negative pressure container detection mechanism and control the Piston regulator syringe bi-directional suction.

As a preferred solution of the present invention, the quantitative push-pull mechanism includes a slider track installed at the end of the power installation box, and the inside of the slider track is rotatably connected with an inner lead screw parallel to it. The outer side of the lead screw is provided with a push handle engaging slider that slides along the front end of the slider track and engages the push handle at the end of the piston pressure regulating syringe through a threaded sleeve. The inside of the power installation box is installed with a drive A stepper motor with two-way rotation of the inner lead screw.

As a preferred solution of the present invention, the double pressure relief mechanism includes a cover communication interface installed on the sealing and fastening cover and communicating with the interior of the negative pressure container, and the cover communication interface is installed with a The signal processing and control device controls and communicates with the electromagnetic valve of the communication interface of the cover. The proximity switch sensor on the power installation box is used to detect the engaging slider of the push handle. The engaging slider of the push handle triggers the proximity switch sensor by approaching the power installation box and jointly controls the communication of the solenoid valve. .

As a preferred solution of the present invention, the sealing and snap-fit cover includes a container sealing cover that is sealed and fastened with the top end of the negative pressure container, and the inner side of the container sealing cover is used to separate multiple A plurality of areas separated by the inner partition of the cover on the container sealing cover are respectively used for installing the pressure detection device and the communication interface of the cover body, and are installed with a plurality of connecting ports for connecting the electromagnetic The pipeline interface of the three-way gastric tube, the vacuum pump and the pressure-regulating syringe pipeline of the piston.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The present invention uses a vacuum pump to continuously suck in the sealed container to continuously generate negative pressure to cooperate with the gastric tube for suction. In the process of detecting the weight parameters of the aspirated material in the container to control the mechanical pressure regulating mechanism to increase or decrease the pressure, so as to ensure the suction effect of the sealed negative pressure container and improve the comfort of gastric tube suction in the stomach Spend;

(2) The present invention makes the mixture unable to contact with the vacuum pump before filling the negative pressure container when the mixture is sucked by adopting the mode of the vacuum pump behind the negative pressure container, which greatly reduces the frequency of cleaning the vacuum pump; Negative pressure containers are classified and released to prevent the mixture from filling the negative pressure container too much and damaging the vacuum pump;

(3) The present invention limits the position of the negative pressure container by setting a rolling clamping mechanism, which is convenient for clamping and installing or disassembling and cleaning the negative pressure container, and guides and rolls the negative pressure container through the rolling clamping mechanism, The negative pressure container can be automatically corrected to the best focus position, and it is convenient to measure the precise value to control the pressurization or decompression of the subsequent mechanical pressure regulating mechanism.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or the prior art. Apparently, the drawings in the following description are only exemplary, and those skilled in the art can also obtain other implementation drawings according to the provided drawings without creative work.

Fig. 1 is an overall front view of the gastric lavage device provided by the embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a negative pressure regulating mechanism provided by an embodiment of the present invention.

Fig. 3 is a top view of the container detection mechanism provided by the embodiment of the present invention.

Fig. 4 is a partial enlarged view of the flexible rolling unit provided by the embodiment of the present invention.

Fig. 5 is a schematic diagram of the bottom structure of the sealing snap-fit lid provided by the embodiment of the present invention.

The labels in the figure are respectively indicated as follows:

1-Equipment mounting seat; 2-Gastric lavage solution storage box; 3-Negative pressure container; 4-Electromagnetic three-way gastric tube; 5-Container detection mechanism; 6-Negative pressure adjustment mechanism; 7-Double pressure relief mechanism;

51-Negative pressure container detection mechanism; 52-Container rolling and retracting mechanism; 53-Sealing buckle cover; 54-Vacuum pump;

511-weight detection device; 512-pressure detection device; 513-signal processing control device; 521-electric control installation box; 522-elastic rolling jaw; 523-flexible rolling unit; 531-container sealing cover; Inner partition; 533-pipeline interface;

5221-tail hinge plate; 5222-inner hinge frame; 5223-deformation drive screw; 5231-through hole; 5232-horizontal shaft; 5233-rigid roller sleeve; 5234-flexible roller outer ring;

61-power installation box; 62-piston pressure regulating syringe; 63-quantitative push-pull mechanism;

631-slider track; 632-inner screw; 633-push handle to engage the slider; 634-stepping motor;

71-cover communication interface; 72-solenoid valve; 73-air intake whistle; 74-proximity switch sensor.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1 to 5, the present invention provides a pediatric negative pressure intelligent control gastric lavage device, comprising an equipment mounting base 1, a gastric lavage liquid storage tank 2 for quantitatively pumping gastric lavage liquid is installed on the equipment mounting base 1, And the negative pressure container 3 used for suction and storage by continuously generating negative pressure, the equipment mounting base 1 is equipped with an electromagnetic three-way gastric tube 4 communicated with the gastric lavage liquid storage tank 2 or the negative pressure container 3 through pipelines;

The container detection mechanism 5 that guides the installation position of the negative pressure container 3 and detects the real-time parameters of the negative pressure container 3 is installed on the equipment mounting base 1, and the negative pressure adjustment mechanism 6 communicating with the negative pressure container 3 is installed on the equipment mounting base 1. The pressure regulating mechanism 6 pressurizes or decompresses the interior of the negative pressure container 3 by cooperating with the detection signal of the container detection mechanism 5;

The negative pressure regulating mechanism 6 is equipped with a double pressure relief mechanism 7 that cooperates with the negative pressure regulating mechanism 6 to pressurize the interior of the negative pressure container 3 for a small amount of pressure relief, and the double pressure relief mechanism 7 is matched with the container detection mechanism 5 to check the negative pressure container 3. internal emergency relief.

The present invention uses the vacuum pump 54 to continuously suck in the sealed container, thereby continuously generating negative pressure to cooperate with the gastric tube for suction, and connects a mechanical pressure regulating mechanism to the sealed container, through the process of suctioning the negative pressure sealed container Detect the weight parameters of the aspirated material in the container to control the mechanical pressure regulating mechanism to increase or decrease the pressure, so as to ensure the suction effect of the sealed negative pressure container 3 and improve the comfort of gastric tube suction in the stomach ;

In addition, by adopting the vacuum pump 54 behind the negative pressure container 3, the mixture cannot be contacted with the vacuum pump 54 before the negative pressure container 3 is filled when the mixture is sucked, greatly reducing the frequency of cleaning the vacuum pump 54; and double pressure relief is provided Mechanism 7 classifies and relieves the negative pressure container 3 to prevent the mixture from filling the negative pressure container 3 too much and damaging the vacuum pump 54;

And, when the negative pressure container 3 is pressurized and adjusted by the negative pressure regulating mechanism 6, the double pressure relief mechanism 7 cooperates with the negative pressure regulating mechanism 6 to accelerate the pressure relief process of the negative pressure container 3, and when the storage capacity of the negative pressure container 3 exceeds the set When the threshold value is reached, the negative pressure container 3 is quickly and urgently released by the double pressure relief mechanism 7, which effectively reduces the problem of excessive storage of the mixture in the negative pressure container 3;

In addition, by setting the rolling clamping mechanism to limit the position of the negative pressure container 3, it is convenient to clamp, install, disassemble and clean the negative pressure container 3, and guide and roll the negative pressure container 3 through the rolling clamping mechanism, The negative pressure container 3 can be automatically corrected to the best emphatic position, and it is convenient to measure an accurate value to control the pressurization or decompression of the subsequent mechanical pressure regulating mechanism.

Among them, the container detection mechanism 5 includes a negative pressure container detection mechanism 51 that detects the weight parameters of the negative pressure container 3 in real time, a container rolling and folding mechanism 52 that positions and rolls to clamp the negative pressure container 3, cooperates with the negative pressure container 3 to install and form a closed space The airtight snap-fit cover 53 and the vacuum pump 54 continuously generate negative pressure inside the negative pressure container 3 .

The container rolling and folding mechanism 52 includes an electric control installation box 521 fixedly installed on the equipment mounting base 1, and two sets of elastic rolling jaws 522 arranged symmetrically about the longitudinal central axis of the electric control installation box 521 are installed on the electric control installation box 521 , and the inner sides of the two groups of elastic rolling jaws 522 are provided with a plurality of equidistantly arranged flexible rolling units 523 for the outer side of the flexible rolling negative pressure container 3, and the two sets of elastic rolling jaws 522 pass through the The flexible rolling unit 523 rolls and guides the negative pressure container 3 to be at the top measurement position of the negative pressure container detection mechanism 51 .

The inner side of the elastic rolling jaw 522 is an arc-shaped structure whose radian is smaller than the outer side of the negative pressure container 3, and the center point of the arc-shaped structure inside the two elastic rolling jaws 522 is located on the central axis of the negative pressure container detection mechanism 51. The tail ends of the first elastic rolling jaws 522 are hinged with a tail hinge plate 5221 through rotation, and the inner sides of the two elastic rolling jaws 522 are hinged with an inner hinge frame 5222 for rotation, and the tail hinge plate 5221 cooperates with the inner hinge frame 5222 to form Through deformation, the diamond-shaped hinge structure of the two elastic rolling jaws 522 is folded or unfolded, and the electric control installation box 521 is rotatably connected with a deformation driving screw 5223 that passes through the tail hinge plate 5221 and is threadedly connected with the inner hinge frame 5222. The driving screw 5223 controls the two elastic rolling jaws 522 to be folded or unfolded through two-way rotation.

A plurality of flexible rolling units 523 are equidistantly arranged along the inner arc structure of the elastic rolling jaws 522. The flexible rolling units 523 include a through hole 5231 opened inside the elastic rolling jaw 522, and the inner central axis of the through hole 5231 is The horizontal rotation is connected with a horizontal shaft 5232, and the outer side of the horizontal shaft 5232 is connected with a rigid roller sleeve 5233. The outer central axis of the rigid roller sleeve 5233 is provided with a flexible roller outer ring 5234 that flexibly abuts against the outside of the negative pressure container 3. The rigid roller sleeve 5233 Cooperate with the flexible roller outer ring 5234 to form a spherical structure that rotates longitudinally around the outer side of the horizontal rotating shaft 5232 as a whole.

The negative pressure container detection mechanism 51 includes a weight detection device 511 that is located directly below the elastic rolling jaw 522 and detects the weight parameters of the negative pressure container 3, and is installed on the sealing snap-fit cover 53 for real-time detection of the pressure inside the negative pressure container 3. The detection device 512, and the signal processing control device 513 installed inside the electric control installation box 521 controls the operation status of the negative pressure adjustment mechanism 6 and the double pressure relief mechanism 7 by receiving and processing the detection parameters of the weight detection device 511 and the pressure detection device 512 , and the signal processing control device 513 is used to control the solenoid valve of the electromagnetic three-way gastric tube 4 and the switch of the vacuum pump 54 .

The negative pressure regulating mechanism 6 includes a power installation box 61 installed on the electric control installation box 521. The inside of the power installation box 61 is fixedly clamped and connected with the sealing snap-fit cover 53 and pressurized inside the negative pressure container 3 by pulling. Or the decompressed piston pressure regulating syringe 62, the power installation box 61 is equipped with a quantitative push-pull mechanism 63 to receive the negative pressure container detection mechanism 51 to measure weight parameters and control the piston pressure regulating syringe 62 to suck in two directions.

Quantitative push-pull mechanism 63 comprises the slide block track 631 that is installed in power installation box 61 ends, and the inside rotation of slide block track 631 is connected with the inner lead screw 632 that is parallel with it, and the outside of interior lead screw 632 is provided with along the slideway by thread sleeve. The front end of the block track 631 slides and engages the push handle of the push handle at the end of the piston pressure regulating syringe 62 to engage the slide block 633, and the inside of the power installation box 61 is equipped with a stepper motor 634 that drives the inner screw 632 to rotate bidirectionally.

The double pressure relief mechanism 7 includes a cover communication interface 71 which is installed on the sealing and snap-fit cover 53 and communicates with the negative pressure container 3. The solenoid valve 72 of 71, the output port of the solenoid valve 72 is connected with the intake whistle 73 that cooperates with the air intake to generate the whistle sound, and the solenoid valve 72 is electrically connected with a sliding block 633 installed on the power installation box 61 for detecting the push handle engagement The proximity switch sensor 74 is pushed, and the engaging slider 633 is triggered by approaching the power installation box 61 to trigger the proximity switch sensor 74 and communicate with the control solenoid valve 72 .

The sealing buckle cover 53 includes a container sealing cover 531 that is sealed and fastened with the top of the negative pressure container 3. The inner side of the container sealing cover 531 is used to separate a plurality of areas by installing a cover inner partition 532. The container sealing cover 531 is located on the cover. The multiple areas separated by the inner partition 532 are respectively used to install the pressure detection device 512 and the cover communication interface 71, and are installed with a plurality of pipelines for connecting the electromagnetic three-way gastric tube 4, the vacuum pump 54 and the piston pressure regulating syringe 62. Pipe interface 533 .

When in use, the medical personnel extend the gastric tube of the electromagnetic three-way gastric tube 4 into the patient's stomach, and then control the opening of the electromagnetic valve 72 of the electromagnetic three-way valve connected to the gastric lavage storage tank 2, and control the gastric lavage storage tank The water pump of 2 quantitatively sucks the gastric lavage solution and injects it into the patient's stomach through the gastric tube, so that the quantitative gastric lavage solution and undigested objects in the stomach form a mixture that is convenient for gastric tube suction.

When aspirating the patient's stomach mixture, first control the electromagnetic valve 72 of the electromagnetic three-way valve and the port connected to the gastric lavage liquid storage tank 2 to close, and open the port connected to the electromagnetic valve 72 and the negative pressure container 3, so that the negative pressure container 3 and Stomach tube communicates, controls vacuum pump 54 to start afterwards, makes vacuum pump 54 continue sucking air from negative pressure container 3 so as to form negative pressure, now negative pressure container 3 can generate suction in patient's stomach by the gastric tube that communicates with it and Suction is continued, so that the mixture is sucked and injected into the negative pressure container 3 through the stomach tube and the electromagnetic valve 72 in sequence.

When storing mixture in negative pressure container 3, the weight of negative pressure container 3 can continue to increase, and directly acts on the weight detection device 511 that is used for negative pressure container 3 detection mechanisms, detects the weight of negative pressure container 3 in real time by weight detection device 511 The weight, and the rate of weight increase, are sent to the signal processing control device 513 by the parameters detected by the weight detection device 511, and the signal processing control device 513 controls the negative pressure regulating mechanism 6 to the negative pressure container 3 according to the set parameter thresholds. Pressurize or decompress, and control the dual pressure relief mechanism 7 to perform emergency pressure relief on the negative pressure container 3. When the following situations occur in the negative pressure container 3, corresponding devices are required to perform pressurization, decompression, auxiliary pressure relief, and emergency pressure relief Wait for a series of operations;

Situation 1: When the weight of the negative pressure container 3 reaches the set threshold value, if the negative pressure container 3 continues to generate negative pressure to suck the mixture, the mixture will be poured into the vacuum pump 54, which may cause damage to the vacuum pump 54 , at this time, it is necessary to stop the negative pressure container 3 to generate negative pressure, so when the signal processing control device 513 receives the detection weight of the weight detection device 511 is greater than the set threshold value, the signal processing control device 513 first controls the vacuum pump 54 to stop running, and simultaneously controls The double pressure relief mechanism 7 performs emergency pressure relief on the negative pressure container 3 until the pressure inside the negative pressure container 3 is equal to the outside world and no longer sucks the mixture. Appropriate amount of pressurization, and finally take off the negative pressure container 3 quickly to clean and rewrite the installation.

When the pressure in the negative pressure container 3 was stronger than the outside air, the mixture in the pipeline connected by the electromagnetic three-way gastric tube 4 and the negative pressure container 3 would be pushed back to a certain distance by the air pressure, and then the container sealing cover 531 of the sealing snap-fit cover 53 would be opened, so that The pressure inside the negative pressure container 3 is quickly equal to the outside world, so when the negative pressure container 3 is subsequently disassembled, a large amount of mixture will not drop from the pipe connection on the sealing snap-fit cover 53, and at the same time, the signal processing controls the quantitative push-pull mechanism 63 to pull back the piston The pressure regulating syringe 62 resets.

When disassembling the negative pressure container 3, it is only necessary to manually pull the negative pressure container 3 vertically, so that the negative pressure container 3 continues to rise until it breaks away from the container rolling and retracting mechanism 52. After the negative pressure container 3 is dumped and quickly cleaned, the negative pressure can be removed. The bottom of the container 3 is aligned between the two sets of elastic rolling jaws 522 and quickly installed again. During the process of lifting the negative pressure container 3 between the two sets of elastic rolling jaws 522, the inner side of the two sets of elastic rolling jaws 522 Under the action of a plurality of flexible rolling units 523, it goes up and down smoothly, and through the deformation of the diamond-shaped hinge structure composed of the two-way rotation deformation drive screw 5223, the tail hinge plate 5221 and the inner hinge frame 5222, the two sets of elastic rolling jaws 522 are clamped. Tightness, when the two elastic rolling jaws 522 roll the negative pressure container 3 through its inner flexible rolling unit 523, on the one hand, it can position the negative pressure container 3 during the installation process; The effect of clamping and fixing is realized on the outside of the negative pressure container 3 .

The flexible rolling unit 523 flexibly squeezes the outer ring 5234 of the negative pressure container 3 through the outer ring 5234 of the rigid roller sleeve 5233 . The sleeve 5233 is driven to rotate around the horizontal shaft 5232, so the two sets of elastic rolling jaws 522 will not excessively affect the detection of the weight detection device 511 when the weight of the negative pressure container 3 changes subsequently.

Situation 2: When the weight growth rate of the negative pressure container 3 is greater than the set threshold value, or the pressure detection device 512 detects that the pressure in the negative pressure container 3 is lower than the set threshold value, it means that the pressure in the negative pressure container 3 is too small and therefore It will cause the gastric tube to produce excessive suction. Since the end of the gastric tube is in the stomach of infant patients, excessive suction may aggravate the pain of infant patients and even damage the stomach. The negative pressure container 3 is pressurized through the negative pressure regulating mechanism 6, and at the same time, the double pressure relief mechanism 7 is used for auxiliary pressure relief, which can quickly increase the pressure in a part of the negative pressure container 3, so as to reduce the pressure of the gastric tube on the baby's stomach. The suction strength inside can win precious time for the medical staff to operate the vacuum pump 54.

The negative pressure regulating mechanism 6 mainly pressurizes or depressurizes the negative pressure container 3 through the piston movement of the piston pressure regulating syringe 62 in the corresponding direction. When the pressure is high or the pressure detection device 512 detects that the pressure is too low, the signal processing control device 513 will control the quantitative push-pull mechanism 63 to push the piston handle of the piston pressure-regulating syringe 62, and the internal piston of the piston pressure-regulating syringe 62 will squeeze the air through the hose Into negative pressure container 3 pressurization with this.

In addition, when the quantitative push-pull mechanism 63 is in operation, the inner lead screw 632 rotates clockwise through the stepping circuit, and the push handle engaging slide block 633 at the end of the push handle of the engaging piston pressure regulating syringe 62 moves forward along the slide block track 631. , until the push handle engaging slider 633 is close to the power installation box 61, the proximity switch sensor 74 installed on the power installation box 61 will detect the push handle engagement slider 633 and control the solenoid valve 72 to open. The negative pressure container 3 will be directly communicated with the outside world through the double pressure relief mechanism 7, so under the effect of the pressure difference, the outside air will enter the negative pressure container 3 through the intake whistle 73, the electromagnetic valve 72 and the cover body communication interface 71 in sequence, and In the process of inhaling air, the intake whistle 73 interacts with the airflow to generate a whistling sound, so as to attract the attention of medical personnel.

When the weight detection device 511 detects that the weight increment value of the negative pressure container 3 is lower than the set threshold value, or the pressure detection device 512 detects the set threshold value of the pressure height in the negative pressure container 3, the signal processing control device 513 controls the quantitative pushing and pulling The mechanism 63 pushes the engaging slider 633 to reset, and the push and pull of the piston pressure regulating syringe 62 is pulled back to the original position. At this time, the proximity switch sensor 74 cannot detect the push handle engaging slider 633, and the solenoid valve 72 will be controlled to close. , at this time, the outside air cannot enter the negative pressure container 3 through the double pressure relief mechanism 7 .

Situation 3: When the weight growth rate of the negative pressure container 3 is less than the set threshold value, or when the pressure detection device 512 detects that the pressure in the negative pressure container 3 is higher than the set threshold value, it means that the pressure in the negative pressure container 3 is too high Therefore, the suction generated by the gastric tube will be too small and the efficiency of suctioning the mixture will be reduced. When the end of the gastric tube is in the stomach of the infant patient for a long time, it will cause great pain to the infant patient. Therefore, it is necessary to reduce the negative pressure container 3 properly at this time. The internal pressure is increased to increase the suction force and block the process of sucking the mixture in the stomach of infant patients.

The stepping motor 634 of the quantitative push-pull mechanism 63 is controlled by the signal processing control device 513 to rotate forward first, and the inner screw 632 rotates rapidly counterclockwise, so that the push handle engages the sliding block 633 to quickly pull the push handle of the piston pressure regulating syringe 62 , the air in the negative pressure container 3 is sucked into the piston pressure regulating syringe 62 in a short time through the piston pressure regulating syringe 62, so a low pressure environment will be generated in the negative pressure container 3 for a short time, so that a relatively high pressure will be generated at the end of the gastric tube in a short time. Large suction, then the signal processing control device 513 controls the stepper motor 634 of the quantitative push-pull mechanism 63 to reverse, and the inner screw 632 rotates slowly clockwise until the push handle engages the slider 633 and the push handle of the piston pressure regulating syringe 62 Gently return to the position, and then repeat this process to make the gastric tube produce a strong adsorption effect in stages, and speed up the efficiency of pumping the mixture in the stomach of young children.

The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements shall also be deemed to fall within the protection scope of the present application.

Claims (6)

1. A pediatric negative pressure intelligent control gastric lavage device, comprising an equipment mount (1), is characterized in that: a gastric lavage storage tank (2) for quantitatively pumping gastric lavage is installed on the equipment mount (1) , and the negative pressure container (3) used for suction and storage by continuously generating negative pressure, the equipment mounting base (1) is installed with the gastric lavage liquid storage tank (2) or the negative pressure tank (2) through the pipeline respectively. The electromagnetic three-way gastric tube (4) that pressure vessel (3) communicates; The equipment mounting base (1) is equipped with a container detection mechanism (5) that guides the installation position of the negative pressure container (3) and detects the real-time parameters of the negative pressure container (3), and the equipment mounting base (1) A negative pressure regulating mechanism (6) connected to the interior of the negative pressure container (3) is installed on the top, and the negative pressure regulating mechanism (6) detects the signal of the negative pressure container by cooperating with the container detection mechanism (5). (3) Internal pressurization or decompression; The negative pressure regulating mechanism (6) is equipped with a double pressure relief mechanism (7) that cooperates with the negative pressure regulating mechanism (6) to pressurize the interior of the negative pressure container (3) for a small amount of pressure relief, and the The double pressure relief mechanism (7) releases the internal emergency pressure of the negative pressure container (3) by cooperating with the container detection mechanism (5); The container detection mechanism (5) includes a negative pressure container detection mechanism (51) for detecting the weight parameters of the negative pressure container (3) in real time, and a container rolling and folding mechanism for positioning and rolling to clamp the negative pressure container (3) (52), cooperate with the negative pressure container (3) to install and form a sealed snap-fit cover (53) for a closed space, and a vacuum pump (54) that continuously generates negative pressure inside the negative pressure container (3); The container rolling and folding mechanism (52) includes an electric control installation box (521) fixedly installed on the equipment mounting base (1), and two groups of electric control installation boxes (521) are installed on the electric control installation box (521). The elastic rolling jaws (522) symmetrically arranged on the longitudinal central axis of the control installation box (521), and the inner sides of the two sets of elastic rolling jaws (522) are provided with a plurality of equidistantly arranged flexible rolling units ( 523) is used to flexibly roll the outside of the negative pressure container (3), and the two sets of elastic rolling jaws (522) guide the negative pressure by rolling the flexible rolling unit (523) inside it The container (3) is at the top measurement position of the negative pressure container detection mechanism (51); A plurality of the flexible rolling units (523) are equidistantly arranged along the inner arc structure of the elastic rolling jaws (522), and the flexible rolling units (523) include the elastic rolling jaws ( 522) a through hole (5231) inside, the inner central axis of the through hole (5231) is horizontally connected with a horizontal rotating shaft (5232), and the outer side of the horizontal rotating shaft (5232) is connected with a rigid roller sleeve (5233), The outer central axis of the rigid roller sleeve (5233) is provided with a flexible roller outer ring (5234) that flexibly abuts against the outer side of the negative pressure container (3), and the rigid roller sleeve (5233) cooperates with the outer ring of the flexible roller The ring (5234) integrally forms a spherical structure that rotates longitudinally around the outer side of the horizontal shaft (5232); The inner side of the elastic rolling jaws (522) is an arc-shaped structure with a radian smaller than the outer side of the negative pressure container (3), and the center point of the inner arc-shaped structure of the two elastic rolling jaws (522) is located at On the central axis of the negative pressure container detection mechanism (51), the tail ends of the two elastic rolling jaws (522) are hinged by rotating and connected to the tail hinge plate (5221), and the two elastic rolling jaws (522) are hinged. The inner side of the jaws (522) is rotatably connected to the inner hinged frame (5222), and the tail hinged plate (5221) cooperates with the inner hinged frame (5222) to form two elastic rolling clips that can be folded or unfolded through deformation. The diamond-shaped hinged structure of the claw (522), the electric control installation box (521) is rotatably connected with a deformation driving screw ( 5223), the deformation driving screw (5223) controls the two elastic rolling jaws (522) to be folded or unfolded through bidirectional rotation. 2. A pediatric negative pressure intelligent control gastric lavage device according to claim 1, characterized in that: the negative pressure container detection mechanism (51) includes a device directly below the elastic rolling jaw (522) and A weight detection device (511) for detecting the weight parameter of the negative pressure container (3), a pressure detection device ( 512), and installed inside the electric control installation box (521) to control the negative pressure adjustment mechanism (6) by receiving and processing the detection parameters of the weight detection device (511) and the pressure detection device (512) ) and the signal processing control device (513) of the operating state of the double pressure relief mechanism (7), and the signal processing control device (513) is used to control the solenoid valve of the electromagnetic three-way gastric tube (4) and the The switch of vacuum pump (54). 3. A pediatric negative pressure intelligent control gastric lavage device according to claim 2, characterized in that: the negative pressure regulating mechanism (6) includes a power installation mounted on the electric control installation box (521) box (61), the inside of the power installation box (61) is fixedly clamped and connected to the sealed snap-fit cover (53), and the inside of the negative pressure container (3) is pressurized or reduced by pulling. pressure regulating piston (62), the power installation box (61) is equipped with a quantitative push-pull mechanism (63) to receive the negative pressure container detection mechanism (51) to measure weight parameters and control the piston pressure regulating syringe (62) Two-way suction. 4. A kind of pediatric negative pressure intelligent control gastric lavage device according to claim 3, characterized in that: the quantitative push-pull mechanism (63) includes a slider track installed at the end of the power installation box (61) (631), the inside of the slider track (631) is rotationally connected with an inner lead screw (632) parallel thereto, and the outer side of the inner lead screw (632) is provided with a threaded sleeve along the slider track ( 631) The front end surface slides and engages the push handle engaging slider (633) of the push handle at the end of the piston pressure regulating syringe (62), and the inside of the power installation box (61) is installed to drive the inner screw (632) stepper motor (634) of bidirectional rotation. 5. A kind of pediatric negative pressure intelligent control gastric lavage device according to claim 4, characterized in that: the double pressure relief mechanism (7) includes a device that is installed on the sealed buckle cover (53) and is connected with the The cover communication interface (71) connected to the interior of the negative pressure container (3), the cover communication interface (71) is equipped with a cover communication interface ( 71) of the electromagnetic valve (72), the output port of the electromagnetic valve (72) is connected with the air intake whistle (73) that cooperates with the air intake to generate the whistle sound, and the electromagnetic valve (72) is electrically connected with the The proximity switch sensor (74) on the power installation box (61) is used to detect the push handle engaging slider (633), and the push handle engaging slider (633) passes close to the power installation box (61) Trigger the proximity switch sensor (74) and jointly control the communication of the solenoid valve (72). 6. A pediatric negative pressure intelligently controlled gastric lavage device according to claim 5, characterized in that: the sealing and snapping cover (53) includes a container that is sealed and snapped with the top end of the negative pressure container (3) A sealing cover (531), the inner side of the container sealing cover (531) is used to separate a plurality of areas by installing a cover inner partition (532), and the container sealing cover (531) is located on the cover inner partition (532) The multiple areas separated are respectively used to install the pressure detection device (512) and the cover body communication interface (71), and are installed with a plurality of electromagnetic three-way gastric tubes (4) for docking , the pipeline interface (533) of the vacuum pump (54) and the piston pressure regulating syringe (62) pipeline.

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