CN216221507U

CN216221507U - Gastroenterology biopsy sampler

Info

Publication number: CN216221507U
Application number: CN202122688724.8U
Authority: CN
Inventors: 李梅; 杨天飞; 孙佳丽
Original assignee: Guihang Guiyang Hospital; Guizhou Medical University
Current assignee: Guihang Guiyang Hospital; Guizhou Medical University
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-04-08
Anticipated expiration: 2031-11-05

Abstract

The utility model belongs to the technical field of medical instruments and discloses a biopsy sampler for digestive system department, which comprises a handle, wherein a sliding sleeve is connected on the handle in a sliding way, a baffle is arranged at the bottom of the sliding sleeve, a spring and a steel wire are fixedly arranged at the bottom of the baffle, the steel wire penetrates through the spring, a straight groove is arranged on the handle, tooth sockets are arranged at two sides of the straight groove, a handle cap is arranged at the lower end of the handle, the handle cap is fixedly connected with the spring, a catheter is fixedly connected at the bottom of the handle cap, one end of the catheter, which is far away from the handle cap, is connected with a tip part, the tip part is close to a pathological change tissue, the steel wire connected below the sliding sleeve is driven by pulling the sliding sleeve, a piston connected with the other end of the steel wire moves, the tip part front cavity forms negative pressure to suck the pathological change tissue into the cavity, a lasso tightens up the cut tissue while the steel wire moves, and a sample at the moment is stored in the tip part cavity, therefore, the opening and closing actions of a common sampler can be reduced, and the pathological tissue can be positioned more accurately.

Description

Gastroenterology biopsy sampler

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to a biopsy sampler for digestive system department.

Background

The digestive tract of a human is divided into a plurality of parts, namely organs such as esophagus, stomach, duodenum, small intestine, large intestine and the like from top to bottom, and also auxiliary digestive organs such as liver, gallbladder, pancreas and the like, the digestive system diseases are various, the medical knowledge is wide, the operation is complex and fine, the pathological changes of the gastrointestinal part can be visually observed through endoscopy such as gastroscope, enteroscope and the like, in the examination process, a doctor needs to make a biopsy of the living tissue reach the body of the patient through an endoscope by means of a living tissue sampler, and a certain amount of the pathological tissues are taken out from the body of the patient by means of cutting, clamping or puncturing and the like for pathological examination.

But do not have fixing device between sliding sleeve and the handle of gastroenterology biopsy sampler in the existing market, need the doctor to keep certain gesture in the use, long this past inevitable can take place the maloperation, lead to the sample to lose, sample once more and increase patient's misery, and current biopsy sampler is in the sampling process, because tip end structure is great, be the open state before the sample, so difficult accurate positioning to pathological change or suspicious tissue, the pathological examination accuracy of making from this is low, has very big misdiagnosis risk.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a biopsy sampler for digestive system department, which solves the problems of misoperation and inaccurate positioning in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a gastroenterology biopsy sampler, includes the handle, sliding connection has the sliding sleeve on the handle, the baffle is installed to the sliding sleeve bottom, baffle bottom fixed mounting has spring and steel wire, just the steel wire runs through the spring, the straight flute has been seted up on the handle, the tooth's socket has been seted up to the straight flute both sides, just the handle cap is installed to the handle lower extreme, handle cap and spring fixed connection, and the bottom fixedly connected with pipe of handle cap, the one end that the handle cap was kept away from to the pipe is connected with the tip.

Preferably, one end of the steel wire, which is far away from the baffle, is connected with a piston, a positioning groove is formed below the steel wire, which is close to the piston, a placing groove is formed in the wall of the inner cavity of the tip part, a noose is placed in the placing groove, one end of the noose is fixedly connected with the positioning groove, and the other end of the noose is tied up with the positioning groove to form a closed loop.

Preferably, the tip portion has a diameter of 1.8mm or 2.3mm and the catheter has a length of 1100mm, 1600mm, 1800mm or 2300 mm.

Preferably, the handle top is installed the ring, the ring lower extreme is provided with connecting thread, the sliding sleeve both sides are provided with the pull ring.

Preferably, pull rings are arranged on two sides of the sliding sleeve.

Preferably, the spring has a spring pitch diameter of 8mm and a free length of 20 mm.

Compared with the prior art, the utility model has the beneficial effects that:

(1) according to the utility model, after sampling is completed, the sliding sleeve is slightly rotated, and the baffle plate arranged at the bottom of the sliding sleeve can be clamped in the tooth groove on the handle, so that sliding of the sliding sleeve by mistake is limited, and the sample can not be lost by the mistake of a doctor.

(2) After the sampler enters the human body, the endoscope finds out the pathological change tissue, the tip part is close to the pathological change tissue, the sliding sleeve is pulled to drive the steel wire connected below the sliding sleeve, the piston connected with the other end of the steel wire moves, negative pressure is formed in the front cavity of the tip part to absorb the pathological change tissue into the cavity, the steel wire drives the sleeve cable to tighten and cut off the tissue while moving, and the sample at the moment is stored in the tip part cavity, so that unnecessary opening and closing actions of a common sampler can be reduced, and the pathological change tissue can be more accurately positioned.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a schematic view of the handle structure of the present invention;

FIG. 4 is a top view of the sliding sleeve of the present invention;

FIG. 5 is a cross-sectional view of the tip portion of the present invention;

fig. 6 is a sectional view of a in fig. 5.

In the figure: 1. a handle; 2. a spring; 3. a conduit; 4. a tip portion; 5. a handle cap; 6. a steel wire; 7. a sliding sleeve; 8. a straight groove; 9. a tooth socket; 10. a baffle plate; 11. a piston; 12. lasso; 13. positioning a groove; 14. a placement groove; 15. a finger ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides the following technical solutions: the utility model provides a gastroenterology biopsy sampler, including handle 1, sliding connection has sliding sleeve 7 on handle 1, baffle 10 is installed to sliding sleeve 7 bottom, baffle 10 bottom fixed mounting has spring 2 and steel wire 6, and steel wire 6 runs through spring 2, straight flute 8 has been seted up on handle 1, tooth's socket 9 has been seted up to straight flute 8 both sides, and handle cap 5 is installed to 1 lower extreme of handle, handle cap 5 and spring 2 fixed connection, and the bottom fixedly connected with pipe 3 of handle cap 5, the one end that pipe 3 kept away from handle cap 5 is connected with first-hand member portion 4.

Further, one end, far away from the baffle 10, of the steel wire 6 is connected with a piston 11, a positioning groove 13 is formed below the steel wire 6, close to the piston 11, a placing groove 14 is formed in the inner cavity wall of the tip portion 4, a lasso 12 is placed in the placing groove 14, one end of the lasso 12 is fixedly connected with the positioning groove 13, and the other end of the lasso is tied up with the steel wire to form a closed loop.

Further, the diameter of the tip portion 4 is 1.8mm or 2.3mm, and the length of the catheter 3 is 1100mm, 1600mm, 1800mm or 2300 mm.

Furthermore, the top end of the handle 1 is provided with a finger ring 15, and the lower end of the finger ring 15 is provided with connecting threads, so that the finger ring 15 is conveniently connected with the handle 1.

Furthermore, pull rings are arranged on two sides of the sliding sleeve 7, so that the forefinger and the middle finger can be conveniently placed.

Furthermore, the spring 2 has a spring pitch diameter of 8mm and a free length of 20mm, and the piston 11 is reset under the action of the tension of the spring 2 to discharge and collect the sample from the cavity.

The working principle and the using process of the utility model are as follows: when the utility model is used, firstly, the catheter 3 is sent into the body of a patient through an endoscope pipeline, the tip part 4 is close to the tissue with pathological changes under the observation of the endoscope, the index finger and the middle finger pass through the pull rings at the two sides of the sliding sleeve 7, the thumb passes through the finger ring 15 at the top of the handle 1 to slightly push the finger ring 15, the handle 1 and the sliding sleeve 7 slide relatively, the baffle 10 at the bottom of the sliding sleeve 7 drives the steel wire 6 to move, thereby pulling the piston 11 to move, negative pressure is formed in the front cavity of the tip part 4 to absorb the pathological changes into the front cavity, at the moment, the steel wire 6 continues to move to drive the lasso 12 in the placing groove 14 to tighten up, thereby cutting off the pathological changes, at the moment, the sample is stored in the front cavity of the tip part 4, then the sliding sleeve 7 is slightly rotated to ensure that the baffle 10 is blocked in the gullet 9, the catheter 3 is slowly drawn out on the other side, then the sliding sleeve 7 is rotated to release the baffle 10 out the gullet 9, then under the tension of the spring 2, the piston is reset, the sample in the front cavity of the front end part 4 is discharged, and after the sample is collected, pathological examination is carried out.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A gastroenterology biopsy sampler which characterized in that: including handle (1), sliding connection has sliding sleeve (7) on handle (1), baffle (10) are installed to sliding sleeve (7) bottom, baffle (10) bottom fixed mounting has spring (2) and steel wire (6), just spring (2) are run through in steel wire (6), straight flute (8) have been seted up on handle (1), tooth's socket (9) have been seted up to straight flute (8) both sides, just handle cap (5) are installed to handle (1) lower extreme, handle cap (5) and spring (2) fixed connection, and the bottom fixedly connected with pipe (3) of handle cap (5), the one end that handle cap (5) were kept away from in pipe (3) is connected with tip (4).

2. A gastroenterology biopsy sampler according to claim 1, wherein: one end, far away from the baffle (10), of the steel wire (6) is connected with a piston (11), a positioning groove (13) is formed below the steel wire (6) close to the piston (11), a placing groove (14) is formed in the wall of the inner cavity of the front end portion (4), a noose (12) is placed in the placing groove (14), one end of the noose (12) is fixedly connected with the positioning groove (13), and the other end of the noose is tied up with the steel wire to form a closed loop.

3. A gastroenterology biopsy sampler according to claim 2, wherein: the diameter of the tip (4) is 1.8mm or 2.3mm, and the length of the catheter (3) is 1100mm, 1600mm, 1800mm or 2300 mm.

4. A gastroenterology biopsy sampler according to claim 3, wherein: a finger ring (15) is installed at the top end of the handle (1), and connecting threads are arranged at the lower end of the finger ring (15).

5. A gastroenterology biopsy sampler according to claim 4, wherein: pull rings are arranged on two sides of the sliding sleeve (7).

6. A gastroenterology biopsy sampler according to claim 5, wherein: the spring pitch diameter of the spring (2) is 8mm, and the free length is 20 mm.