CN115300198A

CN115300198A - Digestive tract fixing support extractor

Info

Publication number: CN115300198A
Application number: CN202210937590.5A
Authority: CN
Inventors: 胡兵; 杨航; 牟一
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2022-11-08

Abstract

The invention provides a digestive tract fixing support extractor, and relates to the technical field of medical instruments. The device comprises an operating handle, wherein a first adjusting rod is longitudinally arranged in the operating handle, and a second adjusting rod is longitudinally arranged in the first adjusting rod; the two first adjusting arms are symmetrically hinged to the operating handle, and a first connecting arm is movably hinged between the first adjusting rod and the first adjusting arms; the second adjusting arms are movably hinged to the first adjusting arms respectively, each second adjusting arm comprises a bottom rod, side rods perpendicularly arranged at two ends of the bottom rod and blunt return hooks arranged on the side rods, a connecting rod parallel to the bottom rod is arranged between the side rods, and the connecting rod is movably hinged to the second adjusting rods through a second connecting arm. The digestive tract fixing support can be conveniently, quickly and accurately taken out.

Description

Digestive tract fixed support extractor

Technical Field

The invention relates to the technical field of medical instruments, in particular to a digestive tract fixing support extractor.

Background

In order to relieve the obstruction of the digestive tract and improve or restore the oral feeding function of a patient in the treatment process of the patient with the digestive tract stenosis (benign stenosis or malignant stenosis), a digestive tract stent is often arranged in the digestive tract of the patient so as to restore the patency of the digestive tract stent. Often times, the placement of the digestive tract stent requires adjustment or removal for replacement due to calculation errors or improper operation; during the treatment process, the bracket can also slide downwards or even be embedded in the body due to the downward extrusion of food (towards the stomach) and the peristalsis of the digestive tract when a patient eats food; the bracket is also required to be taken out after the treatment of the benign stricture of the digestive tract. The existing instrument for taking out/adjusting the digestive tract stent is a hook (a stainless steel wire, the front end of which is in a hook shape), is inserted above the digestive tract stent through a pipeline in an endoscope, and is pulled out of a human body after finding and hooking meshes of the digestive tract stent, so that the stent can be taken out or adjusted. Because the hooks are rigid structures and are unidirectional in hooking (in the opening direction of the hooks), when the hooks are used for capturing meshes of the digestive tract stent through the endoscope, repeated attempts are often performed, the operation is time-consuming and labor-consuming, and the digestive tract stent is difficult to take out/adjust. Therefore, how to solve the above technical problems becomes the focus of research in the field

Disclosure of Invention

The invention aims to provide a digestive tract fixed support extractor which is used for solving the technical problem.

The embodiment of the invention is realized by the following steps:

an alimentary canal fixation stent extractor comprising:

the device comprises an operating handle, a first adjusting rod and a second adjusting rod, wherein the first adjusting rod is longitudinally arranged inside the operating handle;

the two first adjusting arms are symmetrically hinged to the operating handle, and a first connecting arm is movably hinged between the first adjusting rod and the first adjusting arms;

the second regulating arm, two the second regulating arm respectively the activity articulate in two the first regulating arm on, every the second regulating arm include the sill bar, with set up perpendicularly in the side lever at sill bar both ends and set up in every blunt nature on the side lever returns the hook, two the side lever between be provided with the connecting rod parallel with the sill bar, the connecting rod with the second is adjusted and is passed through second linking arm swing joint between the pole.

Further, in some embodiments of the present invention, a sleeve is disposed at a top end of the first adjusting arm, and the bottom rod is movably sleeved in the sleeve.

Further, in some embodiments of the present invention, a first connecting seat is disposed at a top end of the first adjusting lever, and the first connecting arm is movably hinged to the first connecting seat.

Further, in some embodiments of the present invention, a second connecting seat is disposed at a top end of the second adjusting lever, and the second connecting arm is movably hinged to the second connecting seat.

Further, in some embodiments of the present invention, two longitudinal sliding grooves are symmetrically disposed on the operating handle, a first sliding block and a second sliding block are disposed in the two longitudinal sliding grooves, respectively, the first adjusting rod is fixedly connected to the first sliding block, and the second adjusting rod is fixedly connected to the second sliding block.

Further, in some embodiments of the present invention, the side wall of the first adjusting lever is provided with an avoidance groove for avoiding the second adjusting lever.

Further, in some embodiments of the present invention, a first passage is provided in the operating handle for moving the first adjusting lever.

Further, in some embodiments of the present invention, a second passage is disposed in the first adjusting lever for moving the second adjusting lever.

Further, in some embodiments of the invention, the handle is covered with a disposable sterile sheath.

Further, in some embodiments of the present invention, the blunt barbed hook has a length of 5cm to 10cm, a width of 1mm, and a thickness of 0.6mm.

The embodiment of the invention at least has the following advantages or beneficial effects:

according to the extractor for the alimentary canal fixed support, the first adjusting arm and the second adjusting arm which can be opened movably are arranged, the extractor enters the position near the far-end opening of the alimentary canal fixed support through an endoscope biopsy channel, the blunt back hook is adjusted through the first adjusting rod and the second adjusting rod, the extractor is completely closed after the digestive canal fixed support is hooked by the blunt back hook, and the in-place support can be safely extracted along with an endoscope at one time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of an extractor for a fixed bracket of an alimentary canal provided in an embodiment of the present invention in a state;

FIG. 2 is a sectional view of an extractor for an alimentary canal fixing stent provided in accordance with an embodiment of the present invention in a state;

FIG. 3 is a schematic view of a second adjustment arm;

fig. 4 is a schematic structural view of the first adjustment lever.

Icon: 1-an operating handle, 101-a longitudinal sliding groove, 2-a first adjusting arm, 3-a first adjusting rod, 4-a first connecting arm, 5-a first connecting seat, 6-a second adjusting arm, 601-a bottom rod, 602-a side rod, 603-a blunt return hook, 604-a connecting rod, 7-a second adjusting rod, 8-a second connecting arm, 9-a second connecting seat, 10-a first sliding block, 11-a second sliding block, 12-a sleeve and 13-an avoidance groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

Example 1

Referring to fig. 1 to 4, the present embodiment provides a digestive tract fixing rack extractor, which includes an operation handle 1, a first adjusting arm 2, a second adjusting arm 6, a first adjusting rod 3, a second adjusting rod 7, a first connecting arm 4 and a second connecting arm 8.

Referring to fig. 1 and 2, the operation handle 1 is a cylindrical rod, the operation handle 1 is covered with a disposable sterile sheath, so as to ensure sterility during operation, a first channel is provided along a central axis of the operation handle 1, the first adjusting rod 3 is movably inserted into the first channel, so that the first adjusting rod 3 can freely move along the first channel in a longitudinal direction of the operation handle 1, similarly, a second channel is provided along the central axis of the first adjusting rod 3, and the second adjusting rod 7 is movably inserted into the second channel, so that the second adjusting rod 7 can freely move along the second channel in the longitudinal direction of the first adjusting rod 3.

In this embodiment, in order to facilitate the movement of the first adjusting lever 3 and the second adjusting lever 7, as shown in fig. 1 and 2, two longitudinal sliding grooves 101 are formed in the side wall of the operating handle 1, a first slider 10 and a second slider 11 are slidably mounted in the two longitudinal sliding grooves 101, a first right-angle bend is formed at the end of the first adjusting lever 3, the first adjusting lever 3 is integrally formed with the first slider 10 by the first right-angle bend, similarly, a second right-angle bend is formed at the end of the second adjusting lever 7, and the second adjusting lever 7 is integrally formed with the second slider 11 by the second right-angle bend.

In this embodiment, in order to realize the respective movable adjustment of the first adjustment lever 3 and the second adjustment lever 7 without mutual interference, as shown in fig. 1, fig. 2 and fig. 4, an avoiding groove 13 is formed in the sidewall of the first adjustment lever 3 on the side facing the second right-angle bend along the longitudinal direction, and the second right-angle bend is located in the avoiding groove 13, so that the first adjustment lever 3 and the second adjustment lever 7 can freely move without mutual interference.

In this embodiment, in order to enable the first adjusting lever 3 to operate the first adjusting arm 2 to freely open and close, as shown in fig. 1 and fig. 2, there are two first adjusting arms 2 symmetrically disposed on two sides of the operating handle 1, wherein the lower end of the first adjusting arm 2 is movably hinged to the side wall of the operating handle 1, a first connecting seat 5 is integrally formed at the top end of the first adjusting lever 3, the two sides of the first connecting seat 5 are movably hinged to a first connecting arm 4, one end of the first connecting arm 4, which is far away from the first connecting seat 5, is movably connected to the first adjusting arm 2, so that the first adjusting lever 3 is driven by the first slider 10 to move, and then the two first connecting arms 4 can complete the opening and closing actions.

In this embodiment, the two second adjusting arms 6 are symmetrically and movably hinged to the top ends of the two first adjusting arms 2, wherein each second adjusting arm 6 comprises a bottom rod 601, side rods 602 and blunt hooks 603, specifically, the top end of the first adjusting arm 2 is integrally formed with a sleeve 12, the sleeve 12 is perpendicular to the first adjusting arm 2, the bottom rod 601 is movably inserted into the sleeve 12, so that the bottom rod 601 can rotate in the sleeve 12, the two ends of the bottom rod 601 are integrally formed with side rods 602, the side rods 602 are perpendicular to the bottom rod 601, so that the bottom rod 601 and the side rods 602 are formed into a U-shaped structure, each side rod 602 is integrally formed with a blunt hook 603, the length of the blunt hook 603 is about 5cm-10cm, the width is about 1mm, and the thickness is about 0.6mm, so that the two second adjusting arms 6 have four blunt hooks 603, and simultaneously, a connecting rod 604 is integrally formed between the two side rods 602 of the same second adjusting arm 6, and the connecting rod 604 and the bottom rod 601 are parallel to each other.

In this embodiment, in order to enable the second adjusting lever 7 to control the second adjusting arm 6 to freely open and close, as shown in fig. 1 to 3, a second connecting seat 9 is integrally formed at the top end of the second adjusting lever 7, the second connecting seat 9 is symmetrically and movably hinged with a second connecting arm 8, one end of the second connecting arm 8, which is far away from the second connecting seat 9, is movably hinged with a connecting rod 604, so that the second connecting rod 604 can be driven to move by sliding a second sliding block 11, thereby enabling the two second connecting arms 8 to complete the opening and closing actions.

It should be noted that: the living hinge referred to above is a common pivotal connection.

As can be seen from the above, the method for using the extractor for the digestive tract fixing stent provided by the present embodiment is:

it should be noted that: according to different clinical conditions, if the bracket is not blocked and the endoscope is allowed to enter, the operation is carried out; if the blockage exists, the operation is carried out after the blockage is removed through endoscope treatment; if the obstruction cannot be completely removed, the obstruction can be partially removed and the endoscope can be allowed to see the view and operate under direct vision

When the endoscope can pass through the inside of the bracket, the extractor passes through an endoscope biopsy channel and is moved to the position near the far-end opening of the bracket along with the endoscope, then the extractor extends out of the endoscope and slightly retreats from the endoscope to ensure that the endoscope can be operated under direct vision, in addition, attention needs to be paid to opening the first adjusting arm 2 in the bracket through the first adjusting rod 3, enabling the diameter of the opened first adjusting arm 2 to be the same as that of the bracket, and then slowly sending the extractor forwards; at the moment that the free end of the blunt return hook 603 of the extended extractor just exceeds the far end of the stent, the first adjusting rod 3 is operated to open the first adjusting arm 2 and slightly support the first adjusting arm on the wall of the digestive tract, at this moment, it needs to be noted that the free end of the blunt return hook 603 cannot extend too far beyond the far end of the stent, otherwise the extractor deviates from the position or excessively supports the wall of the digestive tract, so that the blunt return hook of the extractor is ensured to be in front of/above the far end edge of the stent, and the blunt return hook 603 prevents the wall of the digestive tract from being damaged, then the second adjusting rod 7 is operated to open the second adjusting arm 6 by a slightly larger angle than the diameter of the stent, so that the free ends of the four blunt return hooks are slightly embedded between the stent and the wall of the digestive tract, at this time, by controlling the endoscope and the retraction operating handle 1, the blunt return hook 603 is embedded between the stent and the wall of the digestive tract, then the second slider 11 is controlled to slightly control the second adjusting rod 604 to control the second adjusting arm 6 to reduce the angle, so that the stent and the wall of the digestive tract are further separated from the opening, the smooth return hook 603 and the wall of the stent can be further understood that the extractor can be inserted into the front wall of the digestive tract, and the extractor, if the extractor can be taken out by the endoscope and the extractor can be difficult to reduce the angle of the front end of the endoscope, and the extractor; repeating the steps until the blunt hook of the blunt back hook 603 of the extractor is flush with the far end edge of the bracket, operating the first adjusting arm 2 to completely close the extractor, completely separating the bracket and the digestive tract, slightly inflating the digestive tract, and safely taking out the bracket along with the endoscope.

In addition, if the endoscope can not pass through the support, the volume of the endoscope is reduced at the moment, namely, substances in the support are cut off until the endoscope can look directly at the whole appearance of the extractor, and the extractor is reused for operation.

While the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.

The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An alimentary canal fixed bolster extractor, comprising:

the device comprises an operating handle (1), wherein a first adjusting rod (3) is longitudinally arranged in the operating handle (1), and a second adjusting rod (7) is longitudinally arranged in the first adjusting rod (3);

the two first adjusting arms (2) are symmetrically hinged to the operating handle (1), and a first connecting arm (4) is movably hinged between the first adjusting rod (3) and the first adjusting arms (2);

second regulating arm (6), two second regulating arm (6) respectively the swing joint in two first regulating arm (2) on, every second regulating arm (6) include sill bar (601), with set up perpendicularly in side lever (602) at sill bar (601) both ends and set up in every blunt nature on side lever (602) returns hook (603), two side lever (602) between be provided with connecting rod (604) parallel with sill bar (601), connecting rod (604) with through second linking arm (8) swing joint between second regulating rod (7).

2. The fixed bracket extractor of the digestive tract is characterized in that the top end of the first adjusting arm (2) is provided with a sleeve (12), and the bottom rod (601) is movably sleeved in the sleeve (12).

3. The extractor for digestive tract fixed stents according to claim 1, characterized in that the top end of the first adjusting rod (3) is provided with a first connecting seat (5), and the first connecting arm (4) is movably hinged to the first connecting seat (5).

4. The extractor for the digestive tract fixing bracket according to claim 1, wherein the top end of the second adjusting rod (7) is provided with a second connecting seat (9), and the second connecting arm (8) is movably hinged to the second connecting seat (9).

5. The fixed bracket extractor for the digestive tract is characterized in that the operating handle (1) is symmetrically provided with two longitudinal sliding grooves (101), a first sliding block (10) and a second sliding block (11) are respectively arranged in the two longitudinal ring grooves, the first adjusting rod (3) is fixedly connected with the first sliding block (10), and the second adjusting rod (7) is fixedly connected with the second sliding block (11).

6. The fixed digestive tract stent extractor according to claim 1, wherein the side wall of the first adjusting rod (3) is provided with an avoiding groove (13) avoiding the second adjusting rod (7).

7. The extractor for digestive tract fixing bracket according to claim 1, wherein the operating handle (1) is provided with a first channel for the first adjusting rod (3) to move.

8. The extractor for digestive tract fixing bracket according to claim 1, wherein the first adjusting rod (3) is provided with a second passage for the second adjusting rod (7) to move.

9. The extractor for digestive tract fixing stent according to claim 1, wherein the operation handle (1) is coated with a disposable sterile sheath.

10. The digestive tract fixing stent extractor according to claim 1, wherein the blunt barb (603) has a length of 5cm to 10cm, a width of 1mm, and a thickness of 0.6mm.