CN219021511U

CN219021511U - Gallbladder polypectomy device

Info

Publication number: CN219021511U
Application number: CN202221651549.3U
Authority: CN
Inventors: 于明安
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2023-05-16
Anticipated expiration: 2032-06-28

Abstract

The utility model relates to a gallbladder polypectomy device, which comprises a clamp, a clamp fixing seat and an operating handle, wherein the clamp is fixed on the clamp fixing seat and acts through the operation of the operating handle, and the gallbladder polypectomy device also comprises an electric cutting ring which can be accommodated in the clamp fixing seat and can extend out of the clamp fixing seat from the clamp fixing seat to the clamp direction under the control of the operating handle; and the electrotome ring can be electrically heated to coagulate while cutting gallbladder polyp tissue. The utility model can conveniently remove the resected polyp while resecting the gallbladder polyp, and coagulate tissues at the same time, thereby reducing the complexity and operation time of the operation and reducing the occurrence of operation risks.

Description

Gallbladder polypectomy device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a high-frequency surgical instrument for resecting gallbladder polyps under a choledochoscope, and specifically relates to a gallbladder polyp resection and extraction device.

Background

The operation for cholecyst polyp requires that the laparoscope is combined with the choledochoscope to provide a clear operation view, the choledochoscope is inserted into the bottom of the cholecyst by using an electric hook under the support of the laparoscope, the tissue of the polyp is grasped by using an endoscopic biopsy forceps or a grasping forceps under the choledochoscope conventionally, and then the bleeding is stopped by using an electric coagulation ball. After taking polyps by using an endoscopic biopsy forceps or a grasping forceps, an independent coagulation step is needed, the operation is complicated, and the unevenness of the basal part or incomplete excision of the polyps is easily caused, so that the method is a main factor of recurrence of the polyps.

The electric resectoscope polypectomy is also a technology easy to apply, specifically, the electric resectoscope is sent into the corresponding position of the gall bladder under the choledochoscope, a push switch is used for encircling polyp tissues, the snare is slowly tightened, the aim is to grab normal tissues around the polyp with the length of 1-2 mm, the snare is completely closed, and meanwhile, the polyp is cut off by electrifying, so that cutting and coagulation are realized. Although the resected surface is smooth and the polyp is thoroughly resected, the resected polyp tissue is easy to fall off in the gall bladder, difficult to recover, and easy to cause related inflammation, and the pathological evaluation cannot be further carried out due to the influence on polyp recovery.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims at solving the problems that the existing gallbladder polyp snare electric resectoscope is not easy to recover resected polyp tissues and causes increased operation risk; another aspect of the present utility model is to solve the problems of complex surgical procedures and long time caused by the fact that the existing cholecystectomy device cannot perform coagulation while resecting polyps.

In order to solve at least one of the above-mentioned problems, the present utility model proposes a cholecystectomy device comprising a clamp, a clamp holder, and an operation handle, the clamp being fixed to the clamp holder and operated by the operation of the operation handle, the cholecystectomy device further comprising an electric cutting ring which can be accommodated in the clamp holder and can be protruded from the inside of the clamp holder to the outside of the clamp holder under the control of the operation handle; the electrotome ring can be electrically heated to coagulate while cutting gallbladder polyp tissue.

According to a preferred embodiment of the utility model, the gripper has two gripper teeth, which are each connected to the gripper holders by a hinge; the front ends of the forceps teeth are provided with a triangular tip, and the two forceps teeth of the forceps form a pointed end after being closed, so that the forceps can be used for puncturing human tissues.

According to a preferred embodiment of the utility model, the cut-off ring is annular and has an outward projection at the end remote from the clamp holder.

According to a preferred embodiment of the utility model, the cut-off ring consists of a memory metal or a memory alloy.

According to a preferred embodiment of the utility model, the operating handle is switchable between two modes of operation, one mode of operation being that the clamp and the electric cut ring operate independently and one mode of operation being that the clamp and the electric cut ring operate synchronously.

According to a preferred embodiment of the present utility model, in the synchronous operation mode, the clamp and the electric cutting ring are simultaneously operated so that the electric cutting ring is retracted from the outer side toward the inside of the clamp holder while the clamp grips the gallbladder polyp tissue, so that the cut gallbladder polyp tissue is gripped by the clamp while the gallbladder polyp tissue is cut.

According to a preferred embodiment of the utility model, the operating handle is connected to the clamp and the cut-off ring by a first link and a second link, respectively, so as to control the movements of the clamp and the cut-off ring, respectively.

According to a preferred embodiment of the present utility model, a mode switching button is further included for controlling the fixing and detachment of the operating handle to the second link so as to facilitate switching of the operating handle in the two operation modes.

According to a preferred embodiment of the utility model, the second link is connected with a wire for powering the cut-off ring.

According to a preferred embodiment of the utility model, the device further comprises an outer sleeve for accommodating the first and second links.

According to a preferred embodiment of the utility model, the device further comprises a handle seat engaging the outer sleeve and for supporting the operating handle.

According to a preferred embodiment of the utility model, the device further comprises an electrode socket, which is fixed to the handle holder and electrically connected to the wire, for connecting to a high frequency generator.

Because the clamp and the electric cutting ring are both arranged at the mouth, the gallbladder polypectomy device can jointly act, and the resected polyp can be conveniently taken out while the gallbladder polyp is resected, thereby solving the problems that the traditional gallbladder polyp snare electric resectoscope is difficult to recover resected polyp tissues and the operation risk is increased.

In addition, the electric cutting ring can be electrically heated, so that the coagulation is performed while the gallbladder polyp tissue is cut, and the problems that the conventional gallbladder polypectomy device cannot perform coagulation while the polyp is resected, so that the operation process is complex and the operation time is long are solved.

Drawings

In order to make the technical problems solved by the present utility model, the technical means adopted and the technical effects achieved more clear, specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be noted, however, that the drawings described below are merely illustrative of exemplary embodiments of the present utility model and that other embodiments of the drawings may be derived from these drawings by those skilled in the art without undue effort.

Fig. 1 is a schematic view of the structure of an embodiment of a cholecystectomy device of the present utility model;

FIG. 2 is a schematic view of the mouth construction of the embodiment shown in FIG. 1;

FIG. 3 is a schematic side view of the mouth structure of the embodiment shown in FIG. 1;

FIG. 4 is a schematic view of a portion of the clamp mount of the embodiment shown in FIG. 1;

FIG. 5 is a schematic view of the structure of the handle base portion of the embodiment shown in FIG. 1;

FIG. 6 is a cross-sectional view of the handle base and operating handle portion of the embodiment shown in FIG. 1;

fig. 7 is a schematic view of the mouth structure of the embodiment of fig. 1 when the cut-off ring is retracted into the clamp holder.

Detailed Description

Exemplary embodiments of the present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments are shown, although the exemplary embodiments may be practiced in various specific ways. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the utility model to those skilled in the art.

The structures, capabilities, effects, or other features described in a particular embodiment may be incorporated in one or more other embodiments in any suitable manner without departing from the spirit of the present utility model.

In describing particular embodiments, specific details of construction, performance, effects, or other features are set forth in order to provide a thorough understanding of the embodiments by those skilled in the art. It is not excluded, however, that one skilled in the art may implement the present utility model in a particular situation in a solution that does not include the structures, properties, effects, or other characteristics described above.

The flow diagrams in the figures are merely exemplary flow illustrations and do not represent that all of the elements, operations, and steps in the flow diagrams must be included in the aspects of the utility model, nor that the steps must be performed in the order shown in the figures. For example, some operations/steps in the flowcharts may be decomposed, some operations/steps may be combined or partially combined, etc., and the order of execution shown in the flowcharts may be changed according to actual situations without departing from the gist of the present utility model.

The block diagrams in the figures generally represent functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The same reference numerals in the drawings denote the same or similar elements, components or portions, and thus repeated descriptions of the same or similar elements, components or portions may be omitted hereinafter. It will be further understood that, although the terms first, second, third, etc. may be used herein to describe various devices, elements, components or portions, these devices, elements, components or portions should not be limited by these terms. That is, these phrases are merely intended to distinguish one from the other. For example, a first device may also be referred to as a second device without departing from the spirit of the utility model. Furthermore, the term "and/or," "and/or" is meant to include all combinations of any one or more of the items listed.

The utility model provides a cholecystectomy device, which comprises a clamp, an electrotome ring, a clamp fixing seat and an operating handle. The clamp is fixed on the clamp fixing seat, and acts through the operation of the operating handle, and is used for clamping the resected cholecyst polyp to take out the body. The electrotome ring can be electrically heated to coagulate while cutting gallbladder polyp tissue.

Fig. 1 is a schematic view of the structure of an embodiment of the cholecystectomy device of the present utility model. As shown in fig. 1, the cholecystectomy device comprises a clamp 1, an electrotome ring 2, a clamp fixing base 3, an outer sleeve 4, a handle base 5, an electrode socket 6, an electrode cable 7, a high-frequency generator 8 and an operating handle 9. The clamp 1 is fixed to the clamp holder 3 and is operated by the operation of the operation handle 9.

The gripper 1 has two gripper teeth, which are each connected to the gripper holders 3 by a hinge. The inner sides of the two forceps teeth are toothed and can be opened and closed at a certain angle, and the preferable opening angle is 0-50 degrees. The electric cutting ring 3 has elasticity, can deform between annular shape and flat elliptic shape, can be accommodated in the clamp fixing seat 3 after being deformed into flat elliptic shape, and can extend to the outside of the clamp fixing seat 3 from the inside of the clamp fixing seat 3 to the direction of the clamp 1 under the control of the operating handle, as shown in fig. 1.

Fig. 2 is a schematic view of the mouth structure of the embodiment shown in fig. 1. As shown in fig. 2, the electro-cutting ring 2 and the metal ring can be electrically heated to perform coagulation while cutting the polyp tissue of the gallbladder, thereby simplifying the operation process and shortening the operation time. Moreover, the cutting ring 2 is annular when extending out of the clamp holder 3, and has an outward protrusion 21 at an end away from the clamp holder 3, the protrusion being V-shaped or U-shaped, or a shape therebetween. Preferably, the cut-off ring 3 is composed of a memory metal or memory alloy, so as to be effectively deformed in two different shapes thereof.

Fig. 3 is a schematic side view of the mouth structure of the embodiment shown in fig. 1. As shown in fig. 3, the electrotome ring 2 is positioned below the clamp 1, the clamp changes from thin to thick from the front end to the rear end, and has an arc-shaped triangular tip at the end of the front end. The two jaw teeth thus form a pointed end after closing, and can thus be used for cutting operations by penetration into human tissue. The protrusion 21 of the electrotome ring 2 and the arc sharp angle of the clamp are beneficial to puncture into the body for polypectomy. It can also be seen from fig. 3 that the rear end of the clamp holder 3 is fixed to the outer sleeve 4.

Fig. 4 is a schematic view of the clamp holder portion of the embodiment shown in fig. 1. As shown in fig. 4, the outer sleeve 4 accommodates a first link 10 and a second link 11. The first link 10 is connected to two jaw teeth of the clamp by a lever assembly 12. The lever assembly 12 is fixed to the clamp fixing base 3 through a hinge 13, and the horizontal movement of the first connecting rod is converted into opening and closing movements of the clamp teeth through the lever assembly by taking the hinge 13 as a fulcrum and a rotation axis. Thus, the clamp can be moved between the clamped state and the relaxed state by controlling the movement of the first link 10 in the horizontal direction by controlling the operating handle 9. Further, referring again to fig. 4, the second link 11 is directly connected to the cut ring 2, whereby the horizontal movement of the second link 11 will directly drive the expansion and deformation of the cut ring.

Fig. 5 is a schematic view of the structure of the handle base portion of the embodiment shown in fig. 1. As shown in fig. 5, the cholecystectomy device of this embodiment further comprises a handle mount 5, the handle mount 5 engaging the outer cannula 4 and for supporting the operating handle 9. Thereby, the operating handle 9 is connected to the clamp 1 and the cut ring 2 via a first link 10 and a second link 11, respectively, so as to control the movements of the clamp 1 and the cut ring 2, respectively.

Specifically, the operating handle includes a rear handle 91 and a front handle 92, and the rear handle 91 is fixedly connected with the handle base 5 or is directly integrally formed. The front handle 92 is rotatably connected with the handle base 9 through a rotating shaft 93. The rotating shaft 93 is disposed at the upper part of the handle seat 5 and is located higher than the first link 10 and the second link 11. Meanwhile, a portion of the front handle 92 located below the rotation shaft 93 may be clamped to the ends of the first and

second links

10 and 11. Thus, when the user holds the front handle 92 and the rear handle 11 with his or her hand and rotates the front handle 92 rearward about the rotation shaft 93, the front handle 92 can move the first link 10 and the second link 11 rearward, thereby driving the clamp 1 and/or the cut ring 2 to move forward.

Fig. 6 is a cross-sectional view of the handle base and operating handle portion of the embodiment shown in fig. 1. As shown in fig. 6, the rear grip 91 of the operating handle includes a left housing 96 and a right housing 97, and the upper portion of the rear grip 91 forms a cavity as the handle seat 5, i.e., the rear grip and the handle seat 5 are of an integrated structure in this embodiment. In addition, as can be seen from fig. 6, in this embodiment, the first link 10 and the second link 11 can be clamped in the groove of the front handle 92, so that the front handle 92 can drive the first link 10 and the second link 11 to operate. The second link 14 is fixedly connected to a mode switching button 14, and the switching button 15 is inserted into an upper portion of the handle holder 5 (a part of the rear handle 91), and is controlled by a user to press and pull up the second link to clamp the second link to the front handle 91 for fixation. The mode switching button 14 switches the operation handle 9 between the two operation modes by controlling the fixing and releasing of the front handle 91 to and from the second link 11. One mode of operation is when the clamp 1 and the cut-off ring 2 operate independently, and one mode of operation is when the clamp 1 and the cut-off ring 2 operate synchronously. In the independent operation mode, the electric cutting ring 2 is retracted into the clamp fixing seat 3, and the mode switching button 14 is pulled up, so that the second connecting rod 11 is not controlled by the front handle 92, and only the first connecting rod 10 is controlled by the front handle 92 to perform the clamping action. Fig. 7 is a schematic view of the mouth structure of the embodiment when the cutting ring 2 is retracted into the clamp holder 3.

In the synchronous working mode, the clamp 1 and the electric cutting ring 2 act simultaneously, and the movement amplitude of the clamp 1 and the electric cutting ring 2 are controlled to be matched with each other by designing the connection position of the clamp 1 and the electric cutting ring 2 and the movement conversion ratio of the lever assembly, so that the electric cutting ring 2 just moves and retracts from the outer side to the inside of the clamp fixing seat 3 when the clamp 1 clamps gallbladder polyp tissues, and the cut gallbladder polyp tissues are just clamped by the clamp when the gallbladder polyp tissues are cut.

Under the synchronous working mode, the resected polyp can be conveniently taken out while the gallbladder polyp is resected, so that the problem that the existing gallbladder polyp snare electric resectoscope is difficult to recover resected polyp tissues and causes increased operation risk is solved.

Referring again to fig. 5, a wire 15 is also connected to the tail of the second link 11 of this embodiment, said wire being used to power the cut-off ring. The lead 15 is connected with an electrode socket 6 which is fixed on the handle seat 5, and the electrode socket 6 can be connected with a high-frequency generator 8 through a level cable 7.

When using the cholecystectomy device of this embodiment, the high frequency generator 8 and the electrode socket 6 on the handle base 5 are first connected with the electrode cable 7. The clamp 1 and the electrotome ring 2 are sent into the gall bladder with the assistance of the choledochoscope. After the gallbladder polyp is found, the clamp 1 and the electrotome ring 2 are opened by pushing the operating handle 9, then the root of the polyp is sleeved by the electrotome ring 3, the electrotome ring 2 is slowly tightened by using the operating handle 9, and the main body part of the polyp is clamped by the clamp 1 synchronously. The electrotome ring 2 is completely closed after grabbing normal tissues around the polyp of 1-2 mm, and simultaneously the electrotome ring is electrified, so that the cutting and coagulation of the polyp tissues are realized. After polypectomy, the clamp 1 is withdrawn to take the polyp tissue out of the body for pathological examination.

In the stand-alone mode of operation, the cholecystectomy device of this embodiment may also operate with clamp 1 alone for small cholecystic polyps. The mode switching button on the operating handle is switched to the independent working mode, so that the electric cutting ring 2 is always in a contracted state and is not released. The rest operation steps are the same as before.

In addition, in the independent operation mode, since the clamp 1 is closed to form a pointed tip, the puncture operation can be performed by puncturing the body.

In summary, the gallbladder polypectomy and extraction device provided by the utility model can realize gallbladder protection and information extraction operation under a choledochoscope, and one surgical instrument can complete cutting and coagulation of polyp tissues, clamping of polyp tissues, and has the advantages of smooth incision and high polyp excision rate. The safety of the operation is improved, the complexity of the operation is reduced, and the operation time is saved.

The above-described specific embodiments further describe the objects, technical solutions and advantageous effects of the present utility model in detail, and it should be understood that the present utility model is not inherently related to any particular computer, virtual device or electronic apparatus, and various general-purpose devices may also implement the present utility model. The foregoing description of the embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a gall bladder polypectomy device, includes clamp, clamp fixing base and operating handle, the clamp is fixed in the clamp fixing base to act through operating handle's operation, its characterized in that:

the cholecystectomy device further comprises an electric cutting ring which can be accommodated in the clamp fixing seat and can extend out of the clamp fixing seat from the clamp fixing seat to the clamp direction under the control of the operating handle;

the electrotome ring can be electrically heated to coagulate while cutting gallbladder polyp tissue.

2. The cholecystectomy device of claim 1, wherein: the clamp is provided with two clamp teeth which are respectively connected with the clamp fixing seat through hinges; the front ends of the forceps teeth are provided with a triangular tip, and the two forceps teeth of the forceps form a pointed end after being closed, so that the forceps can be used for puncturing human tissues.

3. The cholecystectomy device of claim 1, wherein: the electric cutting ring is annular, and one end far away from the clamp fixing seat is provided with an outward protrusion.

4. The cholecystectomy device of claim 1, wherein: the electric cutting ring is composed of memory metal or memory alloy.

5. The cholecystectomy device of claim 1, wherein: the operating handle can be switched between two working modes, wherein one working mode is that the clamp and the electric cutting ring work independently, and the other working mode is that the clamp and the electric cutting ring work synchronously.

6. The cholecystectomy device of claim 5, wherein: in the synchronous working mode, the clamp and the electric cutting ring act simultaneously, so that the electric cutting ring moves and retracts from the outer side to the inside of the clamp fixing seat when the clamp clamps the gallbladder polyp tissue, and the cut gallbladder polyp tissue is clamped by the clamp when the clamp cuts the gallbladder polyp tissue.

7. A cholecystectomy device according to claim 6, wherein the operating handle is connected to the clamp and the cut-off ring via a first link and a second link, respectively, for controlling the movement of the clamp and the cut-off ring, respectively.

8. A cholecystectomy device according to claim 7, further comprising a mode switching button for controlling the fixation and detachment of the operating handle from the second link for facilitating switching of the operating handle in the two modes of operation.

9. A cholecystectomy device according to claim 7, wherein the second linkage is connected to a wire for powering the electrical cutting ring.

10. The cholecystectomy device of claim 7, wherein: the device further comprises an outer sleeve for accommodating the first connecting rod and the second connecting rod.

11. The cholecystectomy device of claim 10, wherein: and a handle mount engaging the outer sleeve and for supporting the operating handle.

12. The cholecystectomy device of claim 11, wherein: the electrode socket is fixed on the handle seat and is electrically connected with the lead wire and used for being connected with a high-frequency generator.