CN107224318B - A medical device for removing foreign bodies - Google Patents

Abstract

The invention relates to the technical field of medical instruments, in particular to a medical foreign body taking device; the invention comprises a taking-out mechanism and a pressing mechanism; the taking-out mechanism comprises a support pipe sleeve, a first hinge joint, a second hinge joint, a connecting rod assembly, an outer sleeve and two support plates; in the invention, the pressing mechanism controls the movement of the taking-out mechanism, the second hinge joint moves downwards on the support tube sleeve, the support plate is lowered to the same height as the foreign body through the connecting rod assembly, and then the support plate rotates to clamp the foreign body through the V-shaped notch on the support plate and then the foreign body is taken out; the invention has simple and convenient operation, can treat transverse embedded foreign bodies and reduce side damage caused by endoscope operation.

Description

A medical device for removing foreign bodies

technical field

The invention relates to the technical field of medical devices, in particular to a device for removing foreign bodies in medical treatment.

Background technique

Foreign bodies in the upper gastrointestinal tract are common emergencies in digestive system diseases. They can occur at any age. They are caused by inadvertent eating and swallowing. Among them, fishbone and jujube stones are embedded in the upper gastrointestinal tract, especially in the upper esophagus.

The traditional treatment of esophageal foreign bodies is mainly to take out foreign body forceps and foreign body baskets under gastroscope, but due to the small operating space, the patient’s nausea and vomiting reaction is particularly obvious when the gastroscope is inserted through the mouth, which leads to unclear exposure of the field of view. It increases the difficulty and risk of foreign body removal, and also increases the risk of local bleeding and perforation.

At present, the clinical use of transparent caps can increase the operating space, but there are still problems of difficult operation and inability to assist in the removal of foreign bodies that are transversely incarcerated.

Contents of the invention

In order to overcome the above-mentioned deficiencies, the object of the present invention is to provide a device for medical treatment of foreign bodies, which uses a pressing mechanism to control the movement of the taking-out mechanism to clamp and take out foreign bodies. Side effects of endoscopic procedures.

The technical scheme that the present invention solves its technical problem is:

A medical device for removing foreign bodies, which includes a removal mechanism for removing foreign bodies from the digestive tract of a human body and a pressing mechanism for controlling the movement of the removal mechanism; the removal mechanism includes a support sleeve, a first hinge, The second articulated head, the connecting rod assembly, the jacket and two support plates, the first articulated head is fixedly connected to the support sleeve, the second articulated head is threadedly connected to the support sleeve, and the first articulated head is screwed to the support sleeve. Both sides of a hinged joint are respectively connected to the second hinged joint through the connecting rod assembly, the connecting rod assembly is connected to the support plate, and the support plate is closely attached to the inner wall of the outer casing. The supporting plate is provided with corresponding V-shaped notch for clamping foreign matter; the second hinged head is connected with the pressing mechanism through a guide wire.

As an improvement of the present invention, the pressing mechanism includes a housing, a first sliding sleeve, a second sliding sleeve, a rotating shaft, a rotating button and a pressing button; the first sliding sleeve, the second sliding sleeve and the rotating shaft are located in the housing Inside, the rotary button and the push button are fixedly connected to the housing, the first sliding sleeve and the second sliding sleeve are both sleeved on the rotating shaft, and the first sliding sleeve is provided with a third hinge head, the second sliding sleeve is provided with a fourth hinge head, the push button is respectively connected to the third hinge head and the fourth hinge head through the first connecting rod and the second connecting rod, and the rotating shaft passes through The second sliding sleeve is connected with the rotary knob.

As a further improvement of the present invention, it also includes a containment mechanism for controlling the foreign matter caught by the take-out mechanism from falling, and the containment mechanism is located directly below the take-out mechanism.

As a further improvement of the present invention, the containing mechanism includes a central tube, two or more ribs hinged with the central tube, a balloon is arranged on the outer periphery of the central tube, and the balloon wraps the The central tube, the balloon is provided with an air inlet hole and an air outlet hole communicating with the central tube, the central tube is connected to the negative pressure ball through a ventilation tube, and the ventilation tube runs through the support sleeve.

As a further improvement of the present invention, the connecting rod assembly includes a third connecting rod, a fourth connecting rod and a fifth joint, and one end of the third connecting rod is connected to one end of the third connecting rod at the first connecting rod. The five hinges are hinged on the top, the fifth hinge is fixedly connected to the support plate, the other end of the third connecting rod is hinged to the first hinge, the other end of the fourth connecting rod is connected to the The second hinge joint is hinged.

As a further improvement of the present invention, the support sleeve is covered with a spring, and the spring is located between the first joint and the second joint.

As a further improvement of the present invention, the guide wire passes through the first sliding sleeve and is connected to the rotating shaft, and the guide wire is connected with the first sliding sleeve by a sliding key.

As a further improvement of the present invention, a tension spring is connected between the third joint and the fourth joint.

As a further improvement of the present invention, a puncture-resistant film is provided between adjacent ribs.

As a further improvement of the present invention, the outer sides of the circumferentially arranged ribs are covered with elastic rings.

In the present invention, the pressing mechanism controls the movement of the take-out mechanism, and the second hinged head moves downward on the support sleeve, and the support plate is lowered to the same height as the foreign matter through the connecting rod assembly, and then rotates through the V-shaped groove on the support plate The foreign body is clamped by the mouth, and then taken out; the invention is easy to operate, and at the same time, it can deal with the incarcerated foreign body and reduce the secondary damage caused by the endoscopic operation.

Description of drawings

For ease of illustration, the present invention is described in detail by the following preferred embodiments and accompanying drawings.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the front view of Fig. 1;

Fig. 3 is a schematic diagram of the internal connection of the present invention (when in the unfolded state);

Fig. 4 is the front view of Fig. 3;

Fig. 5 is a schematic diagram of the present invention when it is in a folded state;

Fig. 6 is a schematic diagram of the internal connection structure of Fig. 5;

Fig. 7 is a structural schematic diagram of the pressing mechanism in the present invention;

Fig. 8 is a structural schematic diagram of a strut in the present invention;

Reference signs: 1-removal mechanism, 11-support pipe sleeve, 111-spring, 12-first hinged head, 13-second hinged head, 14-connecting rod assembly, 141-third connecting rod, 142-fourth Connecting rod, 143-fifth joint, 15-outer jacket, 16-support plate, 161-V-shaped notch, 17-guide wire, 2-pressing mechanism, 21-shell, 22-first sliding sleeve, 221-the first Three hinges, 23-the second sliding sleeve, 231-the fourth hinge, 24-rotating shaft, 25-turn button, 26-press button, 261-the first connecting rod, 262-the second connecting rod, 27-extension spring , 3-dressing mechanism, 31-center tube, 32-breather tube, 33-rib, 34-elastic collar, 35-hemispherical cap, 36-balloon, 37-puncture-resistant membrane, 38-negative pressure ball.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7 and Figure 8, the present invention

A medical device for removing foreign bodies includes a removal mechanism 1 for removing foreign bodies from the digestive tract of a human body and a pressing mechanism 2 for controlling the movement of the removal mechanism 1 .

The take-out mechanism 1 includes a support sleeve 11, a first hinged joint 12, a second hinged joint 13, a connecting rod assembly 14, an outer cover 15 and two braces 16, the first hinged joint 12 is fixedly connected with the support sleeve 11, and the second joint is fixedly connected with the support sleeve 11. The hinged joint 13 is threadedly connected to the support sleeve 11, and the two sides of the first hinged joint 12 are respectively connected with the second hinged joint 12 through the connecting rod assembly 14, and the connecting rod assembly 14 is connected with the support plate 16, and the support plate 15 is closely attached to the On the inner wall of the jacket 15 , the two support plates 16 are provided with corresponding V-shaped notches 161 for clamping foreign matter; the second hinged joint 12 is connected with the pressing mechanism 2 through the guide wire 17 .

In the present invention, the pressing mechanism 2 controls the movement of the take-out mechanism 1, the second hinged head 3 moves downward on the support sleeve 11 (due to the threaded connection), and the support plate 16 is lowered to the same height as the foreign object through the connecting rod assembly 14 , and then rotate through the V-shaped notch 161 on the support plate 16 to clamp the foreign matter, and then take it out.

Further, the present invention provides an embodiment of the pressing mechanism 2. The pressing mechanism 2 includes a housing 21, a first sliding sleeve 22, a second sliding sleeve 23, a rotating shaft 24, a rotary knob 25 and a pressing button 26; the first sliding sleeve 22, The second sliding sleeve 23 and the rotating shaft 24 are inside the housing 21, the rotary knob 25 and the push button 26 are fixedly connected on the housing 21, the first sliding sleeve 22 and the second sliding sleeve 23 are both sleeved on the rotating shaft 24, the first sliding The sleeve 22 is provided with a third joint 221, the second sliding sleeve 23 is provided with a fourth joint 231, and the push button 26 passes through the first connecting rod 261, the second connecting rod 261 and the third joint 221 and the fourth joint respectively. The hinge joint 231 is connected, and the rotating shaft 24 passes through the second sliding sleeve 23 and is connected with the rotating knob 25 .

In order to prevent foreign objects from falling, the present invention provides an embodiment, which also includes a containment mechanism 3 for controlling foreign objects caught by the take-out mechanism 1 from falling, and the containment mechanism 3 is located directly below the take-out mechanism 2 .

Further, an embodiment of the containing mechanism 3 is provided. The containing mechanism 3 includes a central tube 31, two or more ribs 33 hinged with the central tube 31, and a balloon 36 is arranged on the periphery of the central tube 31. 36 wraps the central tube 31, and the balloon 36 is provided with an air inlet and an air outlet that communicate with the central tube 31. The central tube 31 is connected with the negative pressure ball 38 through the vent tube 32, and the vent tube 32 runs through the support pipe sleeve 11 and is in the support position. The negative pressure ball 38 outside the pipe sleeve 11 is connected.

Further, the present invention provides an embodiment of the link assembly 14, the link assembly 14 includes a third link 141, a fourth link 142 and a fifth hinge 143, one end of the third link 141 is connected to the first One end of the four connecting rods 142 is hinged on the fifth hinged joint 143, the fifth hinged joint 143 is fixedly connected with the support plate 16, the other end of the third connecting rod 141 is hinged with the first hinged joint 12, and the other end of the fourth connecting rod 142 is hinged. One end is hinged with the second hinge joint 13 .

In order to facilitate the reset of the first joint 12 , a spring 111 is sheathed on the support sleeve 11 , and the spring 111 is located between the first joint 12 and the second joint 13 .

In order to better control the rotation of the support plate 16 through the guide wire 17 , the guide wire 17 passes through the first sliding sleeve 22 and is connected to the rotating shaft 24 , and the guide wire 17 is connected with the first sliding sleeve 22 by a sliding key.

In order to facilitate the reset of the second sliding sleeve 23 , a tension spring 27 is connected between the third joint 221 and the fourth joint 231 .

Further, a puncture-resistant membrane 37 is provided between adjacent ribs 33 to prevent damage to the digestive tract of the human body.

Furthermore, the outer sides of the umbrella ribs 33 arranged in a circle are covered with elastic collars 34 to facilitate the contraction and expansion of the umbrella ribs 33 .

In the present invention, the center of the take-out structure 1 is the support sleeve 11, wherein the support sleeve 11 is provided with a first hinged joint 12, the first hinged joint 12 is fixedly connected to the support sleeve 11, and the first hinge The support sleeve 11 on the top of the head 12 is provided with a second hinged joint 13, the second hinged joint 13 is threaded with the support sleeve 11, and the support sleeve between the first hinged joint 12 and the second hinged joint 13 11 is covered with a spring 111, two symmetrical third connecting rods 141 are hingedly connected with the first hinged head 12 on the first hinged joint 12, and two fourth connecting rods left and right symmetrical are arranged on the second hinged joint 13 142 is hingedly connected with the second hinge joint 13, and the other end of the third connecting rod 141 on the same side and the other end of the fourth connecting rod 142 are simultaneously hinged at one point with the inner wall of the brace 16, and the brace 16 is designed to fit the food in an arc. The shape of the tube wall, while the two supporting plates 16 are symmetrically designed with a V-shaped notch 161 to support the central axis of the sleeve 11, which is convenient to rotate and block foreign objects. The upper end of the second hinged joint 13 is connected to the guide wire 17, which is designed in The support sleeve 11 is connected inside, the upper end of the guide wire 17 is connected with the first sliding sleeve 22 and the rotating shaft 24, the guide wire 17 and the first sliding sleeve 22 are connected by a sliding key, and the guide wire 17 and the rotating shaft 24 are fixedly connected , the first sliding sleeve 22 and the second sliding sleeve 23 are sleeved on the rotating shaft 24, the first sliding sleeve 22 and the second sliding sleeve 23 can slide freely on the rotating shaft 24, and one end of the first connecting rod 261 passes through the third joint 221 and The first sliding sleeve 22 is hingedly connected, one end of the second connecting rod 262 is hingedly connected to the second sliding sleeve 23 through the fourth hinged joint 231, and a tension spring 27 is arranged between the third hinged joint 221 and the fourth hinged joint 231 to connect. , the other end of the first connecting rod 261 and the second connecting rod 262 are hingedly connected inside the push button 26, the rotating shaft 24 passes through the outside of the second sliding sleeve 23 and is fixedly connected with the rotating knob 25, and the first sliding sleeve 22, the second sliding sleeve The sleeve 23, the rotating shaft 24, the first connecting rod 261, the second connecting rod 262, and the extension spring 27 are all arranged inside the housing 21, and the pressing button 26 and the rotating button 25 are all penetrated inside and outside the housing 1, so as to facilitate the control of pressing and rotating. 16 below is provided with a dress structure 3, and the lower ends of four or more evenly arranged umbrella ribs 33 are hingedly connected with the central tube 31, and an anti-puncture film 37 is arranged between adjacent ribs 33 to cover, and the hinge joints of the ribs 33 The upper central tube 31 is provided with a balloon 36 on the outer periphery. The central tube 31 wrapped by the balloon 36 has an air inlet and an air outlet. The outer side of the umbrella rib 33 arranged in a circle is covered with an elastic collar 34, and the normal balloon 36 is not ventilated. Under the state, umbrella rib 33 can be in tightening state under the contraction of elastic ring 34, and central pipe 31 top is connected with air pipe 32, and air pipe 32 is connected with negative pressure ball 38.

When the patient needs to take a foreign body, the gas inside the balloon 36 is emptied, and the third connecting rod 141 and the fourth connecting rod 142 are hinged and are in a contracted state. The support plate 16 is also in a closed state, and the front end of the device is passed into the patient's oral cavity to enter the foreign body area of the esophagus. At this time, the push button 26 is pressed, and the push button 26 is pushed inward, and the angle between the first connecting rod 261 and the second connecting rod 262 increases , the distance between the first sliding sleeve 22 and the second sliding sleeve 23 increases, the first sliding sleeve 22 slides downward along the rotating shaft 24, the first sliding sleeve 22 pushes the guide wire 17 downward, and the guide wire 17 moves downward Push the second hinged joint 13 to slide down along the support sleeve 11 so that it enters the helical connection thread, then turn the knob 25, the knob 25 drives the rotating shaft 24 to rotate, the rotating shaft 24 drives the guide wire 17 to rotate, and the guide wire 17 drives The screw thread rotates, and because the second hinged head 13 does not rotate, the second hinged head 13 can only be pushed down along the support sleeve 11, so that the angle between the third connecting rod 141 and the fourth connecting rod 142 becomes smaller , to achieve the purpose of supporting the support plate 16, when the support plate 16 and the lower part of the umbrella rib 33 reach a suitable height, at this time, the V-shaped notch 161 of the support plate 16 is at the same height as the foreign object, and the support plate 16 is rotated so that the support plate The V-shaped notch 161 of 16 can block the foreign matter. At this time, the negative pressure ball 38 is squeezed to inflate the balloon 36, and the balloon 36 is inflated to expand the ribs 33, and the anti-puncture membrane 37 is also pulled away. The anti-puncture film 37 cooperates with the ribs 33 to form a mechanism for preventing foreign matter from falling. At this time, the V-shaped notch 161 of the support plate 16 catches the foreign matter and pulls it upward. If the foreign matter falls halfway, the rib 33 can be used. The anti-foreign object drop mechanism composed of the puncture-proof film 37 is used to receive the foreign object. When the foreign object is taken out, the gas in the balloon 36 is released through the negative pressure ball 38. After the balloon 36 shrinks, the rib 33 has an elastic collar 34 The reason is also self-shrinking and closing. After the hand is released, the spring 111 automatically resets and restores to make the distance between the first joint 12 and the second joint 13 widen, so that the angle between the third connecting rod 141 and the fourth connecting rod 142 becomes larger. The support plate 16 becomes the closed state, and now the tension spring 27 resets and shrinks, and the push button 26 bounces up automatically.

In the present invention, the esophageal expansion method is designed to use the support plate 16 that fits the esophageal wall to control the propping and closing of the support plate 16 through two pairs of symmetrical connecting rods on both sides to achieve the purpose of propping up the esophageal wall. Purpose: The brace 16 shares a fifth joint 143 with the third connecting rod 141 and the fourth connecting rod 142, so that the brace 16 has the function of self-alignment, and can be automatically corrected according to the slight change of the esophagus angle to fit the esophagus wall; the second hinged joint 142 is threadedly connected with the support sleeve 11, the support sleeve 11 rotates and the second hinged joint 142 does not rotate, so that the second hinged joint 142 can move up and down along the support sleeve 11; two support plates 16 A V-shaped notch 161 is symmetrically designed with the central axis of the support sleeve 11. When the support plate 16 is lowered, it does not touch foreign objects, and when it is lowered to a suitable position, it rotates and blocks foreign objects, which can protect the inner wall of the esophagus from damage to the greatest extent; the support plate 16 below is provided with a dress structure 3, and the lower ends of four or more evenly arranged umbrella ribs 33 are hingedly connected with the central tube 31, and an anti-puncture film 37 is arranged between adjacent ribs 33 to cover, and the outer periphery of the central tube 31 is arranged Balloon 36 is arranged, and when balloon 36 is inflated, umbrella rib 33 can be propped up so that it is strutted; Under the contraction of the elastic collar 34, it will be in a tightened state;

A spring 111 is sheathed on the supporting sleeve 11 between the first hinged joint 141 and the second hinged joint 142, so that when the first hinged joint 141 and the second hinged joint 142 are not subjected to other external forces, the spring 111 can make the support plate 16 Freely return to the closed state;

The lifting of the take-out mechanism 1 is initially achieved by pressing the push button 26. The push button 26 is pushed inward, the angle between the first connecting rod 261 and the second connecting rod 262 increases, and the first sliding sleeve 22 and the second sliding sleeve 23 The distance between them increases, the first sliding sleeve 22 slides downward along the rotating shaft 24, the first sliding sleeve 22 pushes the guide wire 17 downward, and the guide wire 17 pushes the second hinged joint 13 downward along the support sleeve 11 Slide down to make it enter the spiral connection thread; a tension spring 27 is provided between the third hinged joint 221 and the fourth hinged joint 231 to connect, when the finger leaves the push button 26, the third jointed joint 221 and the fourth jointed joint 221 231 can reset automatically under the action of extension spring 27, saving the trouble of manual follow-up steps.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (9)

1. A device for medically removing foreign bodies, characterized in that it comprises a taking-out mechanism for taking out foreign bodies from the digestive tract of the human body and a pressing mechanism for controlling the movement of the taking-out mechanism; the taking-out mechanism includes a support sleeve, a second A hinged joint, a second hinged joint, a connecting rod assembly, an outer jacket and two support plates, the first hinged joint is fixedly connected to the support sleeve, and the second hinged joint is threadedly connected to the support sleeve , both sides of the first hinged joint are respectively connected to the second hinged joint through the connecting rod assembly, the connecting rod assembly is connected to the support plate, and the support plate is closely attached to the inner wall of the outer casing , the two supporting plates are provided with corresponding V-shaped notches for clamping foreign matter; the second hinge is connected to the pressing mechanism through a guide wire; the pressing mechanism includes a shell, a first sliding sleeve , a second sliding sleeve, a rotating shaft, a rotating button and a push button; the first sliding sleeve, the second sliding sleeve and the rotating shaft are inside the housing, and the rotating knob and the pressing button are fixedly connected to the housing, so Both the first sliding sleeve and the second sliding sleeve are sleeved on the rotating shaft, the first sliding sleeve is provided with a third joint, the second sliding sleeve is provided with a fourth joint, and the pressing The knob is respectively connected to the third hinged joint and the fourth hinged joint through the first connecting rod and the second connecting rod, and the rotating shaft is connected to the rotary knob through the second sliding sleeve. 2. A medical device for removing foreign bodies according to claim 1, characterized in that it further comprises a containment mechanism for controlling the foreign matter caught by the take-out mechanism from falling, and the containment mechanism is located in the take-out mechanism directly below the . 3. A medical device for removing foreign bodies according to claim 2, characterized in that, the containing mechanism comprises a central tube, two or more ribs hinged with the central tube, and the central tube A balloon is arranged on the outer periphery of the center tube, and the balloon wraps the central tube. The air inlet and outlet holes communicating with the central tube are arranged on the balloon, and the central tube is connected with the negative pressure ball through the ventilation tube. , the ventilation pipe runs through the support sleeve. 4. A medical device for removing foreign bodies according to claim 1 or 3, characterized in that, the connecting rod assembly includes a third connecting rod, a fourth connecting rod and a fifth joint, and the third connecting rod One end of one end of the third link is hinged on the fifth hinge, the fifth hinge is fixedly connected to the support plate, and the other end of the third link is hinged to the first The other end of the fourth connecting rod is hinged with the second hinged head. 5 . The medical device for removing foreign bodies according to claim 4 , wherein a spring is sheathed on the support sleeve, and the spring is located between the first hinged joint and the second hinged joint. 6 . 6. A medical device for removing foreign bodies according to claim 5, characterized in that, the guide wire is connected to the rotating shaft through the first sliding sleeve, and the guide wire is connected to the first sliding sleeve Make a feather key connection. 7 . The medical device for removing foreign bodies according to claim 1 , wherein a tension spring is connected between the third hinged joint and the fourth hinged joint. 7 . 8 . The medical device for removing foreign bodies according to claim 3 , wherein an anti-puncture film is arranged between adjacent ribs. 9. A medical device for removing foreign bodies according to claim 8, characterized in that, the outer sides of the umbrella ribs arranged in a circle are covered with elastic rings.

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