Endoscope operating forceps capable of flexibly replacing chucks

Abstract

The endoscope operating forceps with the clamping heads capable of being replaced flexibly comprise a main forceps body, the front end of the main forceps body is movably connected with an outer forceps tube, and the outer forceps tube is connected to the main forceps body to form an integrated structure. An outer clamp pipe is arranged in the main clamp body, an inner clamp pipe used for clamping is rotationally connected to the interior of the outer clamp pipe, an operation assembly is arranged at the tail of the main clamp body, the operation assembly can be in transmission connection with the inner clamp pipe, the operation assembly deforms and can generate pull-back force on the inner clamp pipe, and the connecting position of the inner clamp pipe and the operation assembly is stressed for clamping; according to the operating forceps, the chucks at the front end of the operating forceps are modularly designed, so that various chucks can be replaced on the operating forceps, the clamping mode of the chucks is designed to be pull-back driving, and when the chucks are mounted on the forceps body, the chucks can be in transmission connection with a mechanical driving structure of the operating forceps; therefore, the operating forceps can drive various replaceable chucks for clamping.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical forceps, in particular to a laparoscope surgical forceps with flexibly replaceable clamps. Background Art

[0002] Laparoscopic surgery is mainly performed by making several small incisions and inserting tubes into each to form a working channel. The subsequent surgical operations are based on the working channel and video monitoring to complete the same operations as open surgery. When performing laparoscopic surgery, it is often performed with specially made extended surgical instruments. Laparoscopic surgical forceps are one of the conventional operating instruments. The surgical forceps are a kind of extended special surgical forceps, which mainly controls the front clamping part through the rear operating part to move.

[0003] For laparoscopic surgical forceps, different types of chucks are replaced according to different needs during operation. Because different types of laparoscopic surgical forceps generally only differ in the chuck part, different types of surgical forceps or chucks need to be prepared according to the surgical plan before surgery. However, since the connection between the chuck and the inlay is not just a rigid connection, but also includes a movable connection and transmission, its special needs are too complicated when actually replacing the chuck, and it will also affect the stable and reliable action of the operating part on the clamping part during the operation. Utility Model Content

[0004] The utility model aims to provide a laparoscopic surgical forceps with flexibly replaceable chucks, so as to solve the technical problems in the prior art that the replacement of chucks is complicated and affects the reliability and stability of operation.

[0005] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0006] A laparoscopic surgical forceps with a flexibly replaceable chuck comprises a main forceps body, the front end of the main forceps body is movably connected to an outer forceps tube, and the outer forceps tube is connected to the main forceps body to form an integrated structure;

[0007] The inner part of the outer clamp tube is rotatably connected to an inner clamp tube for clamping. The tail of the main clamp body is provided with an operating component, which can be transmission-connected to the inner clamp tube. The deformation of the operating component can generate a pullback force on the inner clamp tube. The connection between the inner clamp tube and the operating component is subjected to force for clamping.

[0008] As a preferred solution of the utility model, the inner clamp tube includes a clamp tube rotatably connected to the inner side of the outer clamp tube, a clamp for clamping is provided in the front end opening of the clamp tube, an inner slider is slidably connected in the clamp tube, and the inner slider and the clamp are hinged by a hinge;

[0009] Wherein, the inner slider moves forward in the clamp tube to control the clamping of the clamp through the hinge, or the inner slider moves backward in the clamp tube to control the opening of the clamp through the hinge;

[0010] The front and rear ends of the clamp tube are each provided with a notch, the notch at the front end of the clamp tube is used to provide a space for the clamp to clamp or open, and the notch at the rear end of the clamp tube is smaller than the notch at the front end.

[0011] As a preferred solution of the utility model, a first buckle rod is fixedly connected to the end of the inner slider away from the clamp, and a spring is sleeved on the outer side of the first buckle rod;

[0012] Wherein, the end of the spring abuts against the rear end notch of the clamp tube to elastically support the clamp, and a part of the first buckle rod can extend out of the clamp tube;

[0013] Wherein, the end of the first buckling rod is a barbed structure.

[0014] As a preferred solution of the utility model, the operating assembly includes a connecting part fixed to the rear end of the main pliers body, a fixed handle is fixedly connected to the connecting part, and a movable handle is rotatably connected to the connecting part at one side of the fixed handle, and the movable handle is provided with a second buckling rod that passes through the main pliers body and is buckled with the end of the first buckling rod.

[0015] As a preferred solution of the utility model, an annular groove is provided on the outer side of the end of the outer clamp tube close to the main clamp body, and the end of the outer clamp tube can extend into the front port of the main clamp body through the annular groove, and the annular groove of the outer clamp tube is connected to the inner side of the front port of the main clamp body by a thread.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model modularizes the chuck at the front end of the surgical forceps so that a variety of chucks can be replaced on the surgical forceps, and designs the method of controlling the clamping of the chuck to be a pull-back drive. When the chuck is installed on the forceps body, a transmission connection with the mechanical drive structure of the surgical forceps can be achieved, so that the surgical forceps can drive a variety of replaceable chucks for clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the device in the embodiment of the utility model;

[0020] Figure 2 A cross-sectional view of a clamp pipe in an embodiment of the utility model;

[0021] Figure 3 This is an internal schematic diagram of an operating component in an embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the clamp pipe body in the embodiment of the utility model.

[0023] The numbers in the figure represent the following:

[0024] 1-main clamp body; 2-external clamp tube; 3-inner clamp tube; 4-operating assembly;

[0025] 31- clamp tube body; 32- clamp; 33- inner slide; 34- hinged part;

[0026] 331-first buckle connecting rod; 332-spring;

[0027] 41 - connecting part; 42 - fixed handle; 43 - movable handle; 44 - second buckling rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figures 1 to 4 As shown, the utility model provides a laparoscopic surgical forceps with flexibly replaceable chucks, comprising a main forceps body 1, the front end of the main forceps body 1 is movably connected to an outer forceps tube 2, and the outer forceps tube 2 is connected to the main forceps body 1 to form an integrated structure.

[0030] The inner clamp tube 3 for clamping is rotatably connected to the inner clamp tube 3 inside the outer clamp tube 2. An operating component 4 is provided at the tail of the main clamp body 1. The operating component 4 can be transmission-connected to the inner clamp tube 3. The deformation of the operating component 4 can generate a pullback force on the inner clamp tube 3. The connection between the inner clamp tube 3 and the operating component 4 is subjected to force for clamping.

[0031] The utility model modularizes the chuck at the front end of the surgical forceps so that a variety of chucks can be replaced on the surgical forceps, and designs the method of controlling the clamping of the chuck to be a pull-back drive. When the chuck is installed on the forceps body, a transmission connection with the mechanical drive structure of the surgical forceps can be achieved, so that the surgical forceps can drive a variety of replaceable chucks for clamping, thereby greatly reducing the instrument storage space occupied by a variety of surgical forceps.

[0032] The utility model only designs the chuck part as a replaceable structure, and the extended clamp body and the operating part of the surgical forceps are non-replaceable parts. Therefore, when replacing the chuck, it is necessary to solve how the chuck is installed on the front end of the clamp body and how the installed chuck is transmitted to the operating part, which are the problems that need to be solved in this embodiment.

[0033] Among them, the operating component 4 includes a connecting part 41 fixed at the rear end of the main pliers body 1, a fixed handle 42 is fixedly connected to the connecting part 41, and a movable handle 43 is rotatably connected to one side of the fixed handle 42 on the connecting part 41, and a second buckling rod 44 is provided on the movable handle 43, which passes through the main pliers body 1 and is buckled with the end of the first buckling rod 331.

[0034] An annular groove is provided on the outer side of the end of the outer clamp tube 2 close to the main clamp body 1, and the end of the outer clamp tube 2 can extend into the front port of the main clamp body 1 through the annular groove, and is connected to the inner side of the front port of the main clamp body 1 through a thread provided on the annular groove of the outer clamp tube 2.

[0035] An annular groove is provided on the outer side of the connection part of the outer clamp tube 3 to reduce the diameter, and a thread is provided at the annular groove, and a thread is provided on the inner side of the front end of the main clamp body 1, so that the outer clamp tube 3 can be screwed into the front end of the main clamp body 1 through the thread at the annular groove, and the outer diameters of the outer clamp tube 3 and the main clamp body 1 can be kept consistent, thereby ensuring the consistency of the outer side of the clamp body, thereby achieving the purpose of connecting the chuck to the front end of the main clamp body 1.

[0036] The fixed handle 42 is fixed on the connecting part 41, so only a single finger is needed to buckle the fixed handle 42 to separate the connecting part 41 and the main pliers body 1, and another finger is buckled into the movable handle 43, and the movable plate 43 is controlled to rotate so that it can be extended and retracted in the main pliers body 1 through the second buckling rod 44. When the chuck needs to be replaced by transmission connection, the movable handle 43 needs to be rotated to a position away from the fixed plate handle, so that the end of the second buckling rod 44 can be close to the front end of the main pliers body 1 for easy transmission connection.

[0037] The inner clamp tube 3 includes a clamp tube 31 rotatably connected to the inner side of the outer clamp tube 2, a clamp 32 for clamping is provided in the front opening of the clamp tube 31, an inner slider 33 is slidably connected in the clamp tube 31, and the inner slider 33 and the clamp 32 are hinged by a hinge 34. At this time, the two clamps 32 are rotatably mounted on the outer clamp tube 2 by rivets, so that during the pulling process, the two clamps 32 can rotate around to achieve the purpose of clamping or loosening.

[0038] The inner slider 33 moves forward in the clamp tube 31 to control the clamp 32 to clamp through the hinge 34, or the inner slider 33 moves backward in the clamp tube 31 to control the clamp 32 to open through the hinge 34;

[0039] The front and rear ends of the clamp tube 31 are each provided with a notch. The notch at the front end of the clamp tube 31 is used to provide a space for the clamp 32 to clamp or open. The notch at the rear end of the clamp tube 31 is smaller than the notch at the front end.

[0040] A first buckling rod 331 is fixedly connected to the end of the inner slider 33 away from the clamp 32, and a spring 332 is sleeved on the outer side of the first buckling rod 331;

[0041] The end of the spring 332 abuts against the rear end notch of the clamp tube 31 to elastically support the clamp 32 , and a portion of the first buckle rod 331 can extend out of the clamp tube 31 ;

[0042] The end of the first buckling rod 331 is a barb-shaped structure.

[0043] Before connecting the outer clamp tube 2 to the front end of the main clamp body 1, it is necessary to buckle the first buckle rod 331 of the inner clamp tube 3 with the second buckle rod 44 of the operating component 4. The clamp 32 can be pressed until they are merged, thereby deforming the rear end of the clamp 32 and controlling the inner slider 33 to slide backward in the clamp tube body 31 through the hinge 34, thereby squeezing the spring and extending the front end of the first buckle rod 331 out of the clamp tube body 31. At this time, it is convenient to buckle the first buckle rod 331 with the second buckle rod 44, thereby realizing the transmission connection between the inner clamp tube 3 and the operating component 4.

[0044] After the first connecting rod 331 and the second connecting rod 44 are connected, when the outer clamp tube 2 is screwed into the front end of the main clamp body 1, the rotation of the outer clamp tube 2 will not rotate together with the clamp tube body 31, thereby not affecting the transmission connection between the first connecting rod 331 and the second connecting rod 44. Therefore, after the outer clamp tube 2 is fixed, the transmission connection between the inner clamp tube 3 and the operating component 4 can still be guaranteed.

[0045] By loosening the clamp 32, the spring 332 is released, thereby elastically supporting the inner slider 33 to slide toward the clamp in the clamp tube body 1, thereby deforming the rear end of the clamp 32 through the hinge 34 until the front end of the clamp 32 is unfolded.

[0046] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A laparoscopic surgical forceps with a flexibly replaceable chuck, comprising a main forceps body (1), characterized in that: The front end of the main jaw body (1) is movably connected to an outer jaw tube (2), and the outer jaw tube (2) is connected to the main jaw body (1) to form an integrated structure; The inner part of the outer clamp tube (2) is rotatably connected to an inner clamp tube (3) for clamping. The tail of the main clamp body (1) is provided with an operating component (4). The operating component (4) can be transmission-connected to the inner clamp tube (3). The deformation of the operating component (4) can generate a pulling force on the inner clamp tube (3). The connection between the inner clamp tube (3) and the operating component (4) is subjected to force for clamping.

2. The laparoscopic surgical forceps with flexible replaceable chuck according to claim 1, characterized in that: The inner clamp tube (3) comprises a clamp tube (31) rotatably connected to the inner side of the outer clamp tube (2); a clamp (32) for clamping is provided in the front end opening of the clamp tube (31); an inner slider (33) is slidably connected in the clamp tube (31); the inner slider (33) and the clamp (32) are hingedly connected by a hinge (34); and the two clamps (32) are rotatably mounted on the outer clamp tube (2) by rivets; Wherein, the inner slider (33) moves forward in the clamp tube (31) to control the clamp (32) to clamp through the hinge (34), or the inner slider (33) moves backward in the clamp tube (31) to control the clamp (32) to open through the hinge (34); The front and rear ends of the clamp tube (31) are each provided with a notch, the notch at the front end of the clamp tube (31) is used to provide a space for the clamp (32) to clamp or open, and the notch at the rear end of the clamp tube (31) is smaller than the notch at the front end.

3. The laparoscopic surgical forceps with flexible replaceable chuck according to claim 2, characterized in that: A first buckling rod (331) is fixedly connected to the end of the inner sliding block (33) away from the clamp (32), and a spring (332) is sleeved on the outer side of the first buckling rod (331); The end of the spring (332) abuts against the rear end notch of the clamp tube (31) to elastically support the clamp (32), and a portion of the first buckling rod (331) can extend out of the clamp tube (31); Wherein, the end of the first buckling rod (331) is a barbed structure.

4. The laparoscopic surgical forceps with flexible replaceable chuck according to claim 3, characterized in that: The operating assembly (4) comprises a connecting portion (41) fixed to the rear end of the main pliers body (1), a fixed handle (42) being fixedly connected to the connecting portion (41), and a movable handle (43) being rotatably connected to one side of the fixed handle (42) on the connecting portion (41), and a second buckling rod (44) passing through the main pliers body (1) and buckled with the end of the first buckling rod (331) being provided on the movable handle (43).

5. The laparoscopic surgical forceps with flexible replaceable chuck according to claim 1, characterized in that: An annular groove is provided on the outer side of the end of the outer clamp tube (2) close to the main clamp body (1), and the end of the outer clamp tube (2) can extend into the front end of the main clamp body (1) through the annular groove. The annular groove of the outer clamp tube (2) is connected to the inner side of the front end of the main clamp body (1) by means of a thread.

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