CN217369594U - Needle inner wall cleaning system - Google Patents

Abstract

The utility model provides a needle inner wall cleaning system for wash the inner wall of probe, above-mentioned needle inner wall cleaning system includes first pump body and valve body subassembly, and the first pump body is equipped with first interface, and the valve body subassembly includes connected pressure-resistant valve and adapter, and the adapter is equipped with second interface and third interface, and second interface and third interface communicate through the pressure-resistant valve; the first connector, the second connector, the third connector, the first pressure-resistant pipe and the third connector are pressure-resistant connectors. The utility model discloses technical scheme is through the cooperation that adopts adapter and withstand voltage valve for first pump body can adopt withstand voltage to connect with withstand voltage valve, and can use withstand voltage pipeline to connect, guarantees the reliability of pipe connection among the high pressure cleaning process, thereby solves the not enough problem of needle inner wall washing flow, realizes comparatively thorough washing.

Description

Needle wall cleaning system

technical field

The utility model relates to the technical field of chemical cleaning, in particular to a needle inner wall cleaning system.

Background technique

The needle inner wall cleaning system is a commonly used cleaning system for automatic chemiluminescence instruments. Its main function is to use a pump to flush the inner wall of the sample injection needle.

The existing needle inner wall cleaning system usually uses an inner wall pump with a lower output pressure. At the same time, the pressure resistance of the connecting pipeline itself between the inner wall pump and the inner wall valve is relatively general, and the pressure resistance of the connection between the pipeline and the inner wall valve is higher. It is not ideal, which limits the cleaning flow of the inner wall of the needle, which affects the cleaning and testing speed of the instrument; on the other hand, in the clinical practice, the sample injection needle will occasionally block the needle with blood clots or impurities, and the cleaning pressure of the inner wall of the needle will increase rapidly. , If the pressure of the system is insufficient, it is prone to failures such as pipe bursting and water leakage.

Utility model content

The main purpose of the utility model is to provide a needle inner wall cleaning system, which aims to solve the problem of insufficient cleaning flow of the needle inner wall.

The utility model proposes a needle inner wall cleaning system, which is used for cleaning the inner wall of a probe. The needle inner wall cleaning system includes:

a first pump body provided with a first interface; and

A valve body assembly, the valve body assembly includes a pressure-resistant valve and an adapter seat connected to each other, the adapter seat is provided with a second interface and a third interface, and the second interface and the third interface pass through the Pressure valve is connected;

Wherein, the first interface is provided with a first connector, the second interface is provided with a second connector, the third interface is provided with a third connector, the first connector and the second connector are A first pressure-resistant pipe is connected between them, and the first joint, the second joint and the third joint are all pressure-resistant joints.

In one embodiment, a flow channel is formed in the pressure-resistant valve, the flow channel communicates with the second interface and the third interface, and the pressure-resistant valve is used to control the on-off of the flow channel.

In an embodiment, the valve body assembly further includes a first communication pipe and a second communication pipe, the first communication pipe is connected to the second joint, the second communication pipe is connected to the third joint, so The first communication pipe and the second communication pipe extend into the flow channel.

In one embodiment, the needle inner wall cleaning system further includes a second pump body and a second pressure-resistant tube, the second pump body and the third joint are connected through the second pressure-resistant tube, and the first The second pump body and the probe are connected through the second pressure-resistant pipe.

In one embodiment, the needle inner wall cleaning system includes a plurality of second pump bodies, a plurality of the third joints are arranged on the adapter seat, and a plurality of the resistance pumps are correspondingly connected to the adapter seat. The pressure valve, the pressure valve is provided with the flow channel, and the third joint is connected to the second pump body.

In one embodiment, the needle inner wall cleaning system further includes a pressure sensor, the pressure sensor is arranged between the third joint and the second pump body, and the pressure sensor is connected to the second pressure-resistant tube. , to detect the pressure in the second pressure-resistant pipe.

In one embodiment, the first pump body is a diaphragm pump, a plunger pump or a syringe;

And/or, the second pump body is a plunger pump;

And/or, the pressure-resistant valve is a solenoid valve;

And/or, the first pressure-resistant tube is a polyurethane tube, and the second pressure-resistant tube is a Teflon tube;

And/or, the third linker is a 1/4-28 UNF linker.

In one embodiment, the first joint and the second joint are both quick-insertion pipe clamp joints, and the third joint is a threaded hole joint.

In one embodiment, the quick-insertion coupling includes:

a sleeve, the sleeve is connected to the adapter seat, the sleeve forms an installation cavity, the installation cavity communicates with the flow channel, and one end of the sleeve is provided with a communication port that communicates with the installation cavity, so as to for the first pressure-resistant pipe to extend into;

a collet, the collet is set at the communication port and is movably sleeved on the first pressure-resistant pipe, the collet is provided with a clamping part, and the clamping part is set in the installation cavity ;and

A sealing ring is provided in the installation cavity and sleeved with the first pressure-resistant pipe.

In one embodiment, the threaded hole fitting includes:

a base, the base is connected to the adapter, the base is provided with an installation groove, and the bottom wall of the installation groove is opened to communicate with the flow channel; and

a connecting head, the connecting head is movably sleeved on the second pressure-resistant pipe, and the side surface of the connecting head is screwed with the side wall of the installation groove;

Wherein, one end of the second pressure-resistant pipe is provided with a limiting portion, and the connecting head is rotated to push the limiting portion so that the limiting portion abuts against the bottom wall of the installation groove.

The technical scheme of the utility model adopts the cooperation between the adapter seat and the pressure-resistant valve, so that the first pump body and the pressure-resistant valve can adopt a pressure-resistant joint, and can be connected by a pressure-resistant pipeline, so as to ensure the pipeline connection during the high-pressure cleaning process. Therefore, the problem of insufficient cleaning flow of the inner wall of the needle can be solved, and a more thorough cleaning can be achieved.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained based on the structures shown in these drawings without any creative effort.

1 is a schematic structural diagram of an embodiment of the needle inner wall cleaning system of the present invention;

2 is a schematic structural diagram of an embodiment of the valve body assembly of the present invention;

FIG. 3 is a schematic structural diagram of another embodiment of the valve body assembly of the present invention.

Description of reference numbers:

The realization, functional characteristics and advantages of the purpose of the present utility model will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the difference between the various components under a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly.

In addition, the descriptions involving "first", "second", etc. in the present invention are only for description purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present utility model.

The existing needle inner wall cleaning system usually uses an inner wall pump with a lower output pressure, and the pressure resistance of the connecting pipeline itself between the inner wall pump and the inner wall valve is usually about 0.3Mpa, but the connection between the pipeline and the inner wall valve is usually through inverted. Conical pagoda joint connection, the pressure resistance of this connection method usually does not exceed 0.3Mpa, which will limit the cleaning flow of the inner wall of the needle, which will affect the cleaning and testing speed of the instrument; on the other hand, in clinical practice, the sampling needle will occasionally When blood clots or impurities block the needle, the cleaning pressure on the inner wall of the needle will increase rapidly.

In view of this, the present invention provides a needle inner wall cleaning system 100 for cleaning the inner wall of the probe 70. The needle inner wall cleaning system 100 includes a first pump body 10 and a valve body assembly 30. The first pump body 10 is provided with a first Interface, the valve body assembly 30 includes a pressure-resistant valve 31 and an adapter seat 33 connected to each other, the adapter seat 33 is provided with a second interface and a third interface, and the second interface and the third interface are communicated through the pressure-resistant valve 31; wherein, The first interface is provided with a first connector 11 , the second interface is provided with a second connector 331 , the third interface is provided with a third connector 335 , and a first withstand voltage is connected between the first connector 11 and the second connector 331 . The pipe 40, the first joint 11, the second joint 331 and the third joint 335 are all pressure-resistant joints.

In the traditional cleaning system, the inner wall pump is directly connected to the valve body of the inner wall valve. Therefore, the valve body joint is limited and cannot achieve higher pressure resistance requirements, so it is impossible to use more pressure-resistant pipelines and valves. Inner wall pump.

1 to 3 , in one embodiment, the first pump body 10 is connected to the valve body assembly 30 , specifically, the first pump body 10 is connected to the adapter seat 33 in the valve body assembly 30 , and the first pump body 10 is connected to the adapter seat 33 in the valve body assembly 30 . The body 10 and the valve body assembly 30 together constitute a device for providing cleaning power and a water source for the probe 70 in the needle inner wall cleaning system 100 of the present embodiment, wherein the pressure-resistant valve 31 is used to control the on-off of the passage therebetween. In this embodiment, the output end of the first pump body 10 is provided with a first interface, and correspondingly, the input end thereof is also provided with a water inlet interface, which will not be described in detail here. The adapter seat 33 is provided with a second interface and a third interface communicated through the pressure-resistant valve 31. Optionally, the second interface and the third interface are provided on opposite sides of the adapter seat 33, and the pressure-resistant valve 31 is provided on Above the adapter seat 33 . The first interface is provided with a first joint 11, the second interface is provided with a second joint 331, and the third interface is provided with a third joint 335, wherein the first joint 11 and the second joint 331 pass through the first pressure-resistant pipe 40 connections.

In this embodiment, the pressure-resistant joint refers to a joint including but not limited to a pipe hoop joint, and the joint is at least more pressure-resistant than the original joint including the pagoda joint. The first pressure-resistant pipe 40 may be a pipe body including, but not limited to, a PU (Polyurethane Tubing) pipe, which is at least more pressure-resistant than the original pipes including PVC (Polyvinylchlorid) pipes and silicone hoses. On the basis of using more pressure-resistant pipes and joints, the first pump body 10 can also use a higher pressure pump body to meet the cleaning needs. Plug pump or syringe. In this embodiment, the pressure in the needle inner wall cleaning system can be up to 0.7MPa, so that the inner wall of the probe 70 can be cleaned more thoroughly.

That is to say, the technical solution of the present invention adopts the cooperation between the adapter seat 33 and the pressure-resistant valve 31, so that the first pump body 10 and the pressure-resistant valve 31 can use a pressure-resistant joint, and can be connected by a pressure-resistant pipeline. Ensure the reliability of pipeline connections during high-pressure cleaning, so as to solve the problem of insufficient cleaning flow on the inner wall of the needle and achieve more thorough cleaning.

3 , in one embodiment, a flow channel 31a is formed in the pressure-resistant valve 31, the flow channel 31a communicates with the second interface and the third interface, and the pressure-resistant valve 31 is used to control the on-off of the flow channel 31a. Optionally, a channel for connecting the flow channel 31a with the second interface and the third interface can also be formed in the adapter seat 33, and the pressure-resistant valve 31 can be controlled to control the on-off of the flow channel 31a, and then the second interface and the third interface can be controlled. On/off of the third interface. That is, when the pressure-resistant valve 31 is in the open state, the water pumped by the first pump body 10 can flow through the second interface and the third interface, and then enter the probe 70 to clean the inner wall of the needle; When the state is closed, the water flow will no longer flow out from the third interface, and the cleaning operation will no longer be performed.

Further, in one embodiment, the valve body assembly 30 further includes a first communication pipe 333 and a second communication pipe 337, the first communication pipe 333 is connected to the second joint 331, the second communication pipe 337 is connected to the third joint 335, and the first communication pipe 333 is connected to the third joint 335. A communication pipe 333 and a second communication pipe 337 extend into the flow channel 31a, so that the conveying efficiency and cleaning efficiency can be improved to a certain extent, and the processing cost can be saved.

1, in one embodiment, the needle inner wall cleaning system 100 further includes a second pump body 60, the second pump body 60 and the third joint 335 are connected through a second pressure-resistant tube 50, and the second pump body 60 and the probe 70 are connected through the second pressure resistant pipe 50 . When the system performs the liquid suction and discharge process of the probe 70, the pressure-resistant valve 31 remains closed, and the probe 70 performs the suction and discharge action under the power of the second pump body 60; when the system performs the inner wall cleaning, the pressure-resistant valve 31 is opened, and then The first pump body 10 is opened, and the flow direction of the water flow is the first pump body 10 - the valve body assembly 30 - the second pump body 60 - the probe 70 - the outside, thereby completing the cleaning operation.

Optionally, in one embodiment, the needle inner wall cleaning system 100 includes a plurality of second pump bodies 60 , a plurality of third connectors 335 are provided on the adapter seat 33 , and a plurality of pressure-resistant connectors are correspondingly connected to the adapter seat 33 The valve 31, a pressure-resistant valve 31 is provided with a flow channel 31a, and a third joint 335 is connected to a second pump body 60. That is to say, the adapter seat 33 may be provided with a plurality of second ports, and a second port is connected to a third port through a pressure-resistant valve 31, and by switching the opening and closing of different valves, the multiple third ports are connected. The outflowing water enters the plurality of second pump bodies 60 respectively, and then enters the plurality of probes 70 for cleaning. It can be understood that a second interface may also be provided, and a plurality of channels are designed in the adapter seat 33 , and communicate with the plurality of third interfaces correspondingly through the flow channels 31 a in the plurality of pressure-resistant valves 31 . In this way, multiple probes 70 can be cleaned at the same time, which is efficient and convenient.

Further, referring to FIG. 1 again, in one embodiment, the needle inner wall cleaning system 100 further includes a pressure sensor 51, the pressure sensor 51 is arranged between the third joint 335 and the second pump body 60, and the pressure sensor 51 is connected to the second The pressure-resistant tube 50 is used to detect the pressure in the second pressure-resistant tube 50 . The pressure sensor 51 has the function of monitoring the cleaning pressure of the inner wall of the needle. When the cleaning pressure in the second pressure-resistant tube 50 is monitored to exceed the normal value, an alarm will be given, that is, there may be a phenomenon of needle blockage. At this time, the system will perform two consecutive inner wall cleaning. , and monitor whether the pressure returns to the normal range. If it returns to normal, it means that the needle blockage fault has been eliminated. If it does not return to the normal range, it reminds that the needle blockage fault needs manual intervention to be eliminated. By arranging the pressure sensor 51 , the operation detection of the needle inner wall cleaning system 100 is facilitated.

Optionally, in one embodiment, the first pump body 10 is a diaphragm pump, a plunger pump or a syringe to provide sufficient cleaning power; optionally, the second pump body 60 is a plunger pump; optionally, The pressure-resistant valve 31 is a solenoid valve, which is simple in structure, convenient and reliable.

In one embodiment, the first joint 11 and the second joint 331 are both quick-insertion pipe hoop joints. The three joints 335 are threaded hole joints, and specifically, the third joint 335 is a 1/4-28 UNF joint. While realizing quick disassembly and assembly, the needle inner wall cleaning system 100 can use the first pressure-resistant tube 40 and the second pressure-resistant tube 50 with higher pressure resistance, so as to improve the pressure resistance performance of the system.

In one embodiment, the first pressure-resistant tube 40 is a polyurethane tube, and the second pressure-resistant tube 50 is a Teflon tube or a FEP (Fluorinated Ethylene Propylene, Fluorinated Ethylene Propylene) tube to provide better pressure resistance performance , can achieve better cleaning effect.

In one embodiment, the quick-insertion pipe hoop joint includes: a sleeve, a collet and a sealing ring, the sleeve is connected to the adapter seat, the sleeve forms an installation cavity, the installation cavity communicates with the flow channel 31a, and one end of the sleeve is provided with a communication The communication port of the installation cavity is for the first pressure-resistant tube 40 to extend into; the collet is arranged at the communication port and is movably sleeved on the first pressure-resistant tube 40, and the clip is provided with a clamping part, and the clamping part is located in the In the installation cavity; the sealing ring is arranged in the installation cavity, and the first pressure-resistant tube 40 is sleeved.

Specifically, the clamping portion is a clamping tooth structure with a guiding inclined surface, and the guiding inclined surface faces the side wall of the installation cavity, so as to facilitate installation, so that the collet can pass through the communication port relatively smoothly. The installation cavity is provided with a limit step, and the sealing ring is blocked by the limit step when the first pressure-resistant tube 40 extends into the installation cavity, so as to ensure that the sealing ring is always sleeved on the first pressure-resistant tube 40 . The first pressure-resistant tube 40 can be clamped by the clamping part by pulling the collet in the direction away from the sleeve, and correspondingly, the clamping part can be released by pressing the collet into the installation cavity, and the first pressure-resistant The pressure tube 40 is withdrawn.

In one embodiment, the threaded hole joint includes a base and a connecting head, the base is connected to the adapter seat, the base is provided with an installation groove, and the bottom wall of the installation groove is opened to communicate with the flow channel 31a; the connecting head is movably sleeved on the second In the pressure-resistant pipe 50, the side surface of the connection head is threadedly engaged with the side wall of the installation groove. Wherein, one end of the second pressure-resistant tube 50 is provided with a limiting portion, and the rotating connecting head pushes the limiting portion so that the limiting portion abuts against the bottom wall of the installation groove.

Optionally, the limiting portion may be a flange provided at the end of the second pressure-resistant pipe 50, and the second pressure-resistant pipe 50 is also sleeved with a gasket, and the rotary connection head pushes the gasket so that the gasket abuts against the flip. edge, and make the flange press the bottom wall of the installation groove to ensure sealing.

Alternatively, the limiting part may be a conical clamp provided at the end of the second pressure-resistant pipe 50, the end of the connecting head is provided with an inverted cone-type clamping groove, and the connecting head is rotated to make the groove wall of the clamping groove abut against Connect the side surface of the clamp, and make the bottom surface of the clamp press against the bottom wall of the installation groove to ensure sealing.

Optionally, the above-mentioned gasket and clamp are made of elastic material.

The above are only the preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model patent. Under the inventive concept of the present utility model, any equivalent structural transformations made by using the contents of the present utility model description and accompanying drawings, or directly/ Indirect applications in other related technical fields are included in the scope of patent protection of the present invention.

Claims (10)

1. A needle inner wall cleaning system for cleaning the inner wall of a probe, wherein the needle inner wall cleaning system comprises: a first pump body provided with a first interface; and A valve body assembly, the valve body assembly includes a pressure-resistant valve and an adapter seat connected to each other, the adapter seat is provided with a second interface and a third interface, and the second interface and the third interface pass through the Pressure valve is connected; Wherein, the first interface is provided with a first connector, the second interface is provided with a second connector, the third interface is provided with a third connector, the first connector and the second connector are A first pressure-resistant pipe is connected between them, and the first joint, the second joint and the third joint are all pressure-resistant joints. 2 . The needle inner wall cleaning system according to claim 1 , wherein a flow channel is formed in the pressure-resistant valve, the flow channel is connected to the second interface and the third interface, and the pressure-resistant valve is formed. 3 . Used to control the on-off of the flow channel. 3. The needle inner wall cleaning system according to claim 2, wherein the valve body assembly further comprises a first communication pipe and a second communication pipe, the first communication pipe is connected to the second joint, and the The second communication pipe is connected to the third joint, and the first communication pipe and the second communication pipe extend into the flow channel. 4. The needle inner wall cleaning system according to claim 2, wherein the needle inner wall cleaning system further comprises a second pump body and a second pressure-resistant tube, the second pump body and the third joint passing through The second pressure-resistant pipe is connected, and the second pump body and the probe are connected through the second pressure-resistant pipe. 5 . The needle inner wall cleaning system according to claim 4 , wherein the needle inner wall cleaning system comprises a plurality of second pump bodies, the adapter seat is provided with a plurality of the third joints, and the The adapter seat is correspondingly connected with a plurality of the pressure-resistant valves, one of the pressure-resistant valves is provided with the flow channel, and the third joint is connected to the second pump body. 6. The needle inner wall cleaning system according to claim 4, wherein the needle inner wall cleaning system further comprises a pressure sensor, and the pressure sensor is arranged between the third joint and the second pump body, The pressure sensor is connected to the second pressure-resistant tube to detect the pressure in the second pressure-resistant tube. 7. The needle inner wall cleaning system according to claim 4, wherein the first pump body is a diaphragm pump, a plunger pump or a syringe; And/or, the second pump body is a plunger pump; And/or, the pressure-resistant valve is a solenoid valve; And/or, the first pressure-resistant tube is a polyurethane tube, and the second pressure-resistant tube is a Teflon tube; And/or, the third linker is a 1/4-28 UNF linker. 8 . The needle inner wall cleaning system according to claim 7 , wherein the first joint and the second joint are both quick-insertion pipe clamp joints, and the third joint is a threaded hole joint. 9 . 9 . The needle inner wall cleaning system according to claim 8 , wherein the quick-insertion tube clamp joint comprises: 10 . a sleeve, the sleeve is connected to the adapter seat, the sleeve forms an installation cavity, the installation cavity communicates with the flow channel, and one end of the sleeve is provided with a communication port that communicates with the installation cavity, so as to for the first pressure-resistant pipe to extend into; a collet, the collet is set at the communication port and is movably sleeved on the first pressure-resistant pipe, the collet is provided with a clamping part, and the clamping part is set in the installation cavity ;and A sealing ring is provided in the installation cavity and sleeved with the first pressure-resistant pipe. 10. The needle inner wall cleaning system of claim 8, wherein the threaded hole fitting comprises: a base, the base is connected to the adapter, the base is provided with an installation groove, and the bottom wall of the installation groove is opened to communicate with the flow channel; and a connecting head, the connecting head is movably sleeved on the second pressure-resistant pipe, and the side surface of the connecting head is screwed with the side wall of the installation groove; Wherein, one end of the second pressure-resistant pipe is provided with a limiting portion, and the connecting head is rotated to push the limiting portion so that the limiting portion abuts against the bottom wall of the installation groove.

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