CN113069177A

CN113069177A - Parallel opening lithotomy forceps

Info

Publication number: CN113069177A
Application number: CN202110238842.0A
Authority: CN
Inventors: 封帆; 胡彬
Original assignee: Yanan University Affiliated Hospital
Current assignee: Yanan University Affiliated Hospital
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-07-06

Abstract

The invention discloses a pair of parallel opening lithotomy forceps, which comprises a pipe body, a first clamping piece and a second clamping piece, wherein the first clamping piece and the second clamping piece are parallel to each other, a holding handle is fixedly arranged at one end of the pipe body, a rotatable rotating handle is arranged on the holding handle, a central pin shaft is fixedly arranged at the end part, far away from the holding handle, of the pipe body, a first rotating piece and a second rotating piece are movably arranged on the central pin shaft, the first rotating piece is connected with the first clamping piece through a first pin shaft, the second rotating piece is connected with the second clamping piece through a second pin shaft, the first pin shaft and the second pin shaft are both positioned outside the pipe body, a flexible rope and a spring are connected between the end parts, positioned in the pipe body, of the first rotating piece and the second rotating piece, and a pull rope is connected between the rotating. The invention has the following advantages: the convenience is got to the calculus clamp, solves the difficult problem that gets the stone difficulty now, takes trouble, has fine popularization prospect in getting stone pincers technical field.

Description

Parallel opening lithotomy forceps

Technical Field

The invention relates to the technical field of lithotomy forceps, in particular to lithotomy forceps with parallel openings.

Background

In some second-level and third-level hospitals nowadays, patients with second-level hepatic duct stones in the liver and stones at the lower end of the common bile duct are still explored to remove stones through common bile duct dissection. The bile duct is taken in a blind way through the existing equipment, is often difficult to take out or take out, and is easy to cause damage to the mucosa of the bile duct and even the whole layer of the wall of the bile duct. Under the choledochoscope, the calculus removing basket needs to hold calculus in the bile duct and then take out the calculus. However, the existing stone-taking net basket is difficult to net stones through narrow bile ducts, which causes difficulty and trouble in stone-taking, and how to provide a parallel opening stone-taking forceps convenient for stone-taking becomes a research direction.

Disclosure of Invention

The invention aims to solve the problems in the background art and provides a pair of parallel opening lithotomy forceps.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: a parallel opening lithotomy forceps comprises a tube body, a first clamping piece and a second clamping piece, wherein the first clamping piece and the second clamping piece are parallel to each other, a holding handle is fixedly arranged at one end of the tube body, a rotatable rotating handle is arranged on the holding handle, a central pin shaft is fixedly arranged at the end part of the pipe body far away from the holding handle, a first rotating part and a second rotating part are movably arranged on the central pin shaft, the first rotating part is connected with the first clamping part through a first pin shaft, the second rotating part is connected with the second clamping part through a second pin shaft, the first pin shaft and the second pin shaft are both positioned outside the pipe body, a flexible rope and a spring are connected and arranged between the end parts of the first rotating piece and the second rotating piece, which are positioned inside the pipe body, and a pull rope is connected and arranged between the rotating handle and the flexible rope.

Preferably, when the rotating handle is kept parallel to the tube body, the spring is in an open state, the flexible rope is in a linear state, and the first clamping piece and the second clamping piece are in a parallel open state.

Preferably, when the rotating handle rotates to be in phase with the holding handle, the spring keeps a compressed state, the flexible rope keeps a V-shaped state, and the first clamping piece and the second clamping piece are in a parallel closed state.

The invention has the following advantages: structural design is reasonable, adopts parallel opening to get the stone, and the convenience is got the stone clamp and is got, solves now to get the difficult problem of stone difficulty, taking trouble, has fine popularization prospect in getting stone pincers technical field.

Drawings

FIG. 1 is a schematic structural view of a parallel opening lithotomy forceps in a spring-open state.

FIG. 2 is a schematic diagram of a parallel opening lithotomy forceps in a spring compression state according to the present invention.

As shown in the figure: 1. the pipe body, 2, first holder, 3, second holder, 4, the handle of holding, 5, rotate the handle, 6, center pin axle, 7, first commentaries on classics piece, 8, second commentaries on classics piece, 9, first round pin axle, 10, second round pin axle, 11, toughness rope, 12, spring, 13, stay cord.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings.

Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

With reference to fig. 1 and 2, a pair of parallel opening lithotomy forceps comprises a tube body 1, a first clamping piece 2 and a second clamping piece 3, wherein the first clamping piece 2 and the second clamping piece 3 are parallel to each other, a holding handle 4 is fixedly arranged at one end of the tube body 1, a rotatable rotating handle 5 is arranged on the holding handle 4, a central pin shaft 6 is fixedly arranged at the end part of the tube body 1 far away from the holding handle 4, a first rotating piece 7 and a second rotating piece 8 are movably arranged on the central pin shaft 6, the first rotating piece 7 is connected with the first clamping piece 2 through a first pin shaft 9, the second rotating piece 8 is connected with the second clamping piece 3 through a second pin shaft 10, the first pin shaft 9 and the second pin shaft 10 are both positioned outside the tube body 1, a flexible rope 11 and a spring 12 are connected between the end parts of the first rotating piece 7 and the second rotating piece 8 positioned in the tube body 1, a pull rope 13 is connected between the rotating handle 5 and the flexible rope 11.

Preferably, when the rotating handle 5 is kept parallel to the tube 1, the spring 12 is in an open state, the flexible cord 11 is in a linear state, and the first clamping member 2 and the second clamping member 3 are in a parallel open state. As shown in fig. 1.

Preferably, when the rotating handle 5 rotates to be in phase with the holding handle 4, the spring 12 keeps a compressed state, the flexible rope 11 keeps a V-shaped state, and the first clamping piece 2 and the second clamping piece 3 are in a parallel closed state. As shown in fig. 2.

When the stone storage device is specifically implemented, the rotation of the rotating handle drives the pull rope to move in the direction away from the first clamping piece and the second clamping piece, the first clamping piece and the second clamping piece can be horizontally closed under the deformation of the flexible rope to form a state shown in the figure 2, so that stones can be clamped, and then the rotating handle is released to place the stones in the stone storage container. In the process of swinging the rotating handle, the first clamping jaw piece and the second clamping jaw piece can be ensured to be always horizontally parallel due to the structures of the first rotating piece and the second rotating piece.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a parallel opening lithotomy forceps which characterized in that: including body, first holder and second holder, be parallel to each other between first holder and the second holder, the fixed handle that grips that is provided with in one end of body, grip and be provided with rotatable rotation handle on the handle, the body is kept away from the fixed center pin axle that is provided with in tip of gripping the handle, the epaxial activity of center pin is provided with first rotation piece and second rotation piece, first rotation piece through first round pin axle with first holder be connected, the second rotate piece through second round pin axle with the second holder be connected, first round pin axle and second round pin axle all be located outside the body, first rotation piece and second rotate and be located connect between the tip in the body and be provided with toughness rope and spring, rotation handle and toughness rope between be connected and be provided with the stay cord.

2. The parallel opening lithotomy forceps of claim 1, characterized in that: when the rotating handle is kept parallel to the pipe body, the spring is in an open state, the flexible rope is in a linear state, and the first clamping piece and the second clamping piece are in a parallel open state.

3. A parallel opening lithotomy forceps according to claim 1 or 2, characterized in that: when the rotating handle rotates to the same phase as the holding handle, the spring keeps a compressed state, the flexible rope keeps a V-shaped state, and the first clamping piece and the second clamping piece are in a parallel closed state.