CN217488735U - A guide and protection device for the central puncture rod of the digestive tract tubular stapler - Google Patents

Abstract

The utility model relates to a guiding and protecting device for the central puncture rod of an alimentary canal stapler, comprising a guiding protective sheath and a limit ring. One end of the guiding protective sheath is the head end of the guiding protective sheath, and the other end is the guiding protective sheath The tail end of the guide protection sheath is axially provided with a puncture rod accommodating cavity which is adapted to the central puncture rod of the tubular stapler. fit. Compared with the prior art, the utility model utilizes it to form protection on the surface of the central puncture rod of the alimentary canal stapler, and guide its travel route at the same time, so as to avoid the central puncture rod from damaging the mucosa, tearing the tissue, etc. Predetermined location.

Description

Guiding and protecting device for central puncture rod of digestive tract tubular stapler

technical field

The utility model belongs to the technical field of medical supplies, and relates to a guiding and protecting device for the central puncture rod of a digestive tract tubular stapler.

Background technique

General surgery often requires anastomosis and reconstruction of the digestive tract, and the tubular stapler is the most commonly used medical device in the process of anastomosis of the digestive tract. match.

However, in some surgeries, the central rod of the tubular stapler can easily damage the alimentary canal wall, causing tissue tearing or mucosal damage, especially in the parts that cannot be reached by deep vision. It is more likely to cause injury and perforation, resulting in increased surgical failure or increased complication rates, reducing surgical safety.

Utility model content

The purpose of the present utility model is to provide a guiding and protecting device for the central puncture rod of an alimentary canal stapler, which can make the operation smoother, reduce the complications of the operation and improve the success rate of the operation.

The purpose of the present utility model can be achieved through the following technical solutions:

A guiding and protecting device for the central puncture rod of an alimentary canal stapler, the device comprises a guiding protective sheath and a limit ring, one end of the guiding protective sheath is the head end of the guiding protective sheath, and the other end is the guiding protective sheath The tail end of the sheath, the tail end of the guiding and protecting sheath is axially provided with a puncture rod accommodating cavity adapted to the central puncture rod of the tubular stapler, and the limit ring is arranged in the puncture rod accommodating cavity, and Compatible with the central puncture rod. The head of the central puncture rod can be inserted into the accommodating cavity of the puncture rod, and the central puncture rod can be axially limited through the cooperation of the limit ring with the groove on the side of the central puncture rod.

Further, the inner wall of the puncture rod accommodating cavity is provided with a limiting ring placing groove, and the limiting ring is embedded in the limiting ring placing groove. The stop ring matches the size of the stop ring placement slot.

Further, the outer surface of the guiding and protecting sheath is smooth. The guiding protective sheath can be made of medical polymer such as PVC, PPS, PEEK, ABS, PC, etc.

Further, the limit ring is an elastic limit ring. The limit ring can be made of elastic medical materials such as silicone, rubber, TPU, etc. The limit ring is made of flexible medical polymer. After the central puncture rod of the tubular stapler passes through the limit ring, the utility model and the central puncture rod of the tubular stapler can be limited and fixed, and can also be quickly removed when it needs to be removed. Effect.

Further, the limiting ring is annular.

Further, the outer diameter of the limiting ring is 1-8mm.

Further, the outer diameter of the guiding and protecting sheath is 2-10 mm.

Further, the diameter of the accommodating cavity of the puncture rod (ie, the inner diameter of the guiding protective sheath) is 1-8 mm. The inner diameter of the guide sheath is adapted to the outer diameter of the central puncture rod of the tubular stapler.

Further, the distance between the end face of the head end of the guiding and protecting sheath and the accommodating cavity of the puncture rod is 1-15 mm. When in use, the head end of the guiding protective sheath exceeds the head end of the central puncture rod of the tubular stapler by 1-15 mm, so as to prevent the central puncturing rod of the tubular stapler from damaging the mucosa and tearing the tissue.

Further, the head end of the guiding and protecting sheath is cylindrical, ellipsoid, spherical, drop-shaped or provided with an upturned structure. The guiding and protecting sheath can be selected to be cylindrical, or an upturned structure can be selected to achieve the effect of pulling and exposing the desired anastomotic position during the operation. In order to achieve better guidance and protection, the head end of the guide and protection sheath can also be other suitable structures, such as ellipsoid, spherical, teardrop shape, and the like.

The utility model can be processed and formed by means of 3D printing, polymer injection molding, machining and the like.

The utility model can fit on the head of the central puncture rod of the tubular stapler body, the head end of the device is blunt and the surface is smooth, so that the tubular stapler body can protect the tip of the central puncture rod during the process of the alimentary canal advancing, It can avoid damage to the mucosa, tear tissue, etc., and can play the function of lengthening and guiding.

Compared with the prior art, the utility model has the following characteristics:

1) The utility model uses it to form protection on the surface of the central puncture rod of the alimentary canal type stapler, and guide its travel route at the same time, which can avoid the central puncture rod from damaging the mucosa, tearing the tissue, etc., and can reach a predetermined position through guidance.

2) The utility model has the advantages of simple structure and low manufacturing cost, which can effectively reduce the complications caused by the damage and tear of the intestinal wall mucosa, reduce the recovery time and pain of patients, and is easy for clinical promotion.

Description of drawings

Fig. 1 is the structural representation of the utility model in application;

Fig. 2 is the structural representation of guiding protective sheath in the utility model;

Fig. 3 is the structural representation of the limit ring in the utility model;

4 is a schematic diagram of the upturned structure provided at the head end of the guide protection sheath in the utility model;

Description of marks in the figure:

1—Guide protective sheath, 101—Guide protective sheath head end, 102—Guide protective sheath tail end, 103—Puncture rod accommodating cavity, 104—Limiting ring placement groove, 2—Limiting ring, 3—Tubular stapler , 4—Central puncture rod.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and provides a detailed implementation manner and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

Example:

As shown in FIGS. 1 , 2 and 3 , a guiding and protecting device for the central puncture rod of an alimentary canal stapler includes a guiding protective sheath 1 and a limiting ring 2 . One end of the guiding and protecting sheath 1 is the leading end 101 of the guiding and protecting sheath, and the other end is the tail end 102 of the guiding and protecting sheath. The puncture rod accommodating cavity 103 of the central puncture rod, the limit ring 2 is arranged in the puncture rod accommodating cavity 103 and is matched with the central puncture rod 4 .

Wherein, the inner wall of the puncture rod accommodating cavity 103 is provided with a limit ring placement groove 104 , and the limit ring 2 is arranged in the limit ring placement groove 104 .

The outer surface of the guide sheath 1 is smooth. The outer diameter of the guide sheath 1 is 2-10 mm. The diameter of the puncture rod accommodating cavity 103 is 1-8 mm. The distance between the end face of the head end 101 of the guiding and protecting sheath and the accommodating cavity 103 of the puncture rod is 1-15 mm.

The limit ring 2 is an elastic limit ring. The limit ring 2 is annular. The outer diameter of the limit ring 2 is 1-8mm.

The head end 101 of the guiding and protecting sheath is cylindrical, ellipsoid, spherical, water drop-shaped or provided with an upturned structure as shown in FIG. 4 .

In the conventional use process of the tubular stapler 3, the main steps are to remove the roof guard, remove the nail anvil, adjust the position of the central puncture rod 4, and then put the device into the head of the central puncture rod 4, and pass the limit ring. 2. Fix the device with the central puncture rod 4. Then, the tubular stapler 3 is placed into the intestinal tract to be anastomosed. During the subsequent operation, when the tubular stapler 3 moves in the intestinal wall and contacts the intestinal wall mucosa or tissue, the guiding protective sheath 1 can protect the intestinal wall mucosa and the intestinal mucosa. The utility of the tissue, when it is subsequently confirmed that the central puncture rod 4 matches the position of the nail anvil, the device can be removed directly by surgical forceps or by hand, and then the final anastomotic action can be performed.

The above description of the embodiments is for the convenience of those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications to these embodiments can be readily made, and the generic principles described herein can be applied to other embodiments without inventive step. Therefore, the present invention is not limited to the above-mentioned embodiments, and improvements and modifications made by those skilled in the art according to the disclosure of the present invention without departing from the scope of the present invention should all fall within the protection scope of the present invention.

Claims (10)

1. A guiding and protecting device for the central puncture rod of an alimentary canal stapler, characterized in that the device comprises a guiding protective sheath (1) and a limit ring (2), the guiding protective sheath (1) ) is the head end (101) of the guiding and protecting sheath, and the other end is the tail end (102) of the guiding and protecting sheath. A puncture rod accommodating cavity (103) adapted to the rod (4), the limiting ring (2) is arranged in the puncture rod accommodating cavity (103), and is adapted to the central puncture rod (4). 2 . The device for guiding and protecting the central puncture rod of an alimentary canal stapler according to claim 1 , wherein a limiting ring is provided on the inner wall of the puncture rod accommodating cavity (103). 3 . A placement groove (104) is provided, and the limiting ring (2) is embedded in the limiting ring placement groove (104). 3 . The device for guiding and protecting the central puncture rod of an alimentary canal stapler according to claim 1 , wherein the outer surface of the guiding and protecting sheath ( 1 ) is smooth. 4 . 4. The device for guiding and protecting the central puncture rod of an alimentary canal stapler according to claim 1, wherein the limiting ring (2) is an elastic limiting ring. 5 . The device for guiding and protecting the central puncture rod of an alimentary canal type anastomat according to claim 1 , wherein the limiting ring ( 2 ) is annular. 6 . 6 . The device for guiding and protecting the central puncture rod of an alimentary canal stapler according to claim 1 , wherein the outer diameter of the limiting ring ( 2 ) is 1-8 mm. 7 . 7 . The device for guiding and protecting the central puncture rod of an alimentary canal stapler according to claim 1 , wherein the outer diameter of the guiding and protecting sheath ( 1 ) is 2-10 mm. 8 . 8 . The device for guiding and protecting the central puncture rod of an alimentary canal stapler according to claim 1 , wherein the diameter of the puncture rod accommodating cavity ( 103 ) is 1-8 mm. 9 . 9 . The device for guiding and protecting the central puncture rod of an alimentary canal stapler according to claim 1 , wherein the end face of the leading end of the protective sheath (101) is accommodated with the puncture rod. 10 . The distance between the cavities (103) is 1-15mm. 10. The device for guiding and protecting the central puncture rod of an alimentary canal stapler according to claim 1, wherein the head end (101) of the guiding and protecting sheath is cylindrical, ellipsoid, Spherical, teardrop-shaped or with upturned structure.

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