CN215899808U

CN215899808U - Lithotomy holding forceps

Info

Publication number: CN215899808U
Application number: CN202120997622.1U
Authority: CN
Inventors: 张晶晶
Original assignee: Ningbo Beilun Peoples Hospital
Current assignee: Ningbo Beilun Peoples Hospital
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2022-02-25
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a stone holding forceps, which comprises: the upper clamp is provided with an upper shaft hole and an upper holding part from the front end to the back in sequence; a lower clamp provided with a lower shaft hole and a lower holding part corresponding to the upper clamp; the shaft pin penetrates through the upper shaft hole and the lower shaft hole, is locked and is used for hinging the upper pliers with the lower pliers; the upper clamping outer ring is pivoted to the front end part of the upper clamp and locked; the lower clamping outer ring is pivoted to the front end part of the lower clamp and locked; the utility model provides a pair of lithotomy gripping tongs, wherein the front ends of an upper tong and a lower tong are respectively pivoted with an upper gripping outer ring and a lower gripping outer ring, so that the included angle between the upper gripping outer ring and the upper annular tongs mouth of the lower gripping outer ring can be conveniently adjusted, the upper gripping outer ring and the lower gripping outer ring are locked, and the change of the included angle between the annular tongs mouths is avoided.

Description

Lithotomy holding forceps

Technical Field

The utility model relates to the technical field of medical clamping instruments, in particular to a stone clamping forceps.

Background

Hepatobiliary calculus is one of common diseases in biliary surgery in China, and is particularly common in Yangtze river watershed, south China coastal areas and the like. Generally, patients with hepatobiliary calculi are often accompanied by different degrees of damage to hepatocytes and systems of the biliary tract, which may cause serious complications of the biliary tract and the systemic system, and are common causes of death in non-malignant diseases of the biliary tract.

As shown in figure 1, two annular jaws of the lithotomy forceps and an upper forceps or a lower forceps main body in the prior art are of an integrally formed structure, and an included angle between the annular jaws is fixed, so that the lithotomy forceps cannot adapt to different conditions. For example, when the stone taking channel is narrow and the diameter of the stone is large, parallel annular jaws are selected, and the stone is clamped by using the inner diameter of the annular jaws; when the stone taking channel is wide and the diameter of the stone is small, the annular jaws with included angles between the two annular jaws are selected, and the front ends of the annular jaws are used for clamping the stone.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, an embodiment of the present application provides a lithotomy forceps, wherein the front ends of the upper forceps and the lower forceps are respectively pivoted with the upper outer clamping ring and the lower outer clamping ring, so as to adjust an included angle between the upper outer clamping ring and the upper annular jaw of the lower outer clamping ring, and lock the upper outer clamping ring and the lower outer clamping ring, thereby preventing the included angle between the annular jaws from changing.

The technical scheme adopted by the embodiment of the utility model is as follows: providing a stone holding forceps comprising: the upper clamp is provided with an upper shaft hole and an upper holding part from the front end to the back in sequence; a lower clamp provided with a lower shaft hole and a lower holding part corresponding to the upper clamp; the shaft pin penetrates through the upper shaft hole and the lower shaft hole, is locked and is used for hinging the upper pliers and the lower pliers; the upper clamping outer ring is pivoted to the front end part of the upper clamp and locked; and the lower clamping outer ring is pivoted to the front end part of the lower clamp and locked.

After the structure is adopted, the upper pliers and the lower pliers are hinged through shaft pin locking, so that the clamping pliers have a basic clamping function. The upper clamping outer ring is pivoted with the end part of the front end of the upper pliers and is loosened so as to adjust the angle between the upper clamping outer ring and the pliers body of the upper pliers, the pivoting of the upper clamping outer ring and the end part of the front end of the upper pliers is locked, and the change of an included angle between the annular jaw and the pliers body of the upper pliers is avoided; similarly, the lower clamping outer ring is pivoted with the front end of the lower pliers, so that the included angle between the annular jaw and the pliers body is adjustable, and the included angle between the annular jaw and the pliers body can be adjusted by an operator conveniently according to actual conditions.

Preferably, the clamping device further comprises an upper clamping inner ring which is pivoted to the end part of the front end of the upper clamp, and the upper clamping inner ring is positioned in the upper clamping outer ring; the stone holding forceps are selected according to the size of the diameter of the stone, and an appropriate annular jaw is selected, and the upper holding inner ring and the lower holding outer ring are matched for use by additionally arranging the upper holding inner ring and are used for holding stones of different shapes and sizes.

Preferably, the upper clamping outer ring and the upper clamping inner ring are arranged in a concentric circle.

Preferably, the lower clamping device further comprises a lower clamping inner ring which is pivoted to the front end part of the lower clamp, and the lower clamping inner ring is positioned in the lower clamping outer ring; the lower clamping inner ring is matched with the upper clamping outer ring or the upper clamping inner ring for use and is used for clamping stones with different shapes and sizes.

Preferably, the lower clamping outer ring and the upper clamping inner ring are arranged in a concentric circle.

Preferably, the upper pliers are provided with upper crimping sawteeth which are positioned at the rear side of the upper shaft hole, the lower pliers are correspondingly provided with lower crimping sawteeth, and the upper crimping sawteeth are movably clamped with the lower crimping sawteeth.

Preferably, the axial width of the lower clamping outer ring is greater than the axial width of the upper clamping outer ring; the contact area of the inner diameter of the lower clamping outer ring is increased so as to be convenient for clamping and fixing the calculus.

Preferably, the upper clamping outer ring is pivotally connected to the front end of the upper tong by an adjustable pivot pin.

Drawings

FIG. 1 is a schematic structural view of a lithotomy forceps in the prior art;

FIG. 2 is a perspective view of the stone holding forceps in embodiment 1;

FIG. 3 is a plan view of the stone holding forceps in embodiment 1;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view showing the connection of the pivot pins in embodiment 1;

FIG. 6 is a schematic view showing the structure of an upper clipper in embodiment 1;

fig. 7 is a schematic structural view of the lower clamp in embodiment 1.

The reference numbers in the figures illustrate:

1. upper pliers; 2. a lower clamp; 3. a shaft pin; 4. an upper grip portion; 5. pressing saw teeth upwards; 6. an upper clamping outer ring; 7. a lower clamping outer ring; 8. a lower grip portion; 9. an upper clamping inner ring; 10. a lower clamping inner ring; 11. a pivot pin; 12. an upper shaft hole; 13. A lower shaft hole; 14. the saw teeth are pressed and connected.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present 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.

This application is kept silent the annular and is improved the pin joint with adjustable to the integral type of pincers body is connected to in order to adjust the annular and keep silent the contained angle between the pincers body, increases the variety of centre gripping pincers shape, in order to use under the different scenes of adaptation.

For better technical solutions, the technical solutions will be described in detail below with reference to the drawings and specific embodiments of the specification.

Example 1

As shown in fig. 2 and 3, the present embodiment provides a stone holder comprising: the upper pliers 1 is provided with an upper shaft hole 12 and an upper holding part 4 from the front end to the back in sequence; a lower tong 2 provided with a lower shaft hole 13 and a lower grip 8 corresponding to the upper tong 1; the shaft pin 3 penetrates through the upper shaft hole 12 and the lower shaft hole 13 and is locked, and is used for hinging the upper pliers 1 and the lower pliers 2; an upper clamping outer ring 6 which is pivoted to the front end part of the upper clamp 1 and is locked; and a lower clamping outer ring 7 which is pivoted to the front end part of the lower clamp 2 and locked.

Specifically, as shown in fig. 4 and 5, the forceps further includes an upper clamping inner ring 9 pivotally connected to the front end of the upper forceps 1, and the upper clamping inner ring 9 is located in the ring of the upper clamping outer ring 6.

Specifically, the upper holding outer ring 6 and the upper holding inner ring 9 are arranged in concentric circles.

Furthermore, an upper clamping outer ring 6 and an upper clamping inner ring 9 are coaxially pivoted with the front end part of the upper pliers 1.

Specifically, the clamping device further comprises a lower clamping inner ring 10 which is pivoted to the front end part of the lower clamp 2, and the lower clamping inner ring 10 is positioned in the lower clamping outer ring 7.

Specifically, the lower clamping outer ring 7 and the upper clamping inner ring 9 are arranged in a concentric circle.

Further, the lower clamping outer ring 7 and the lower clamping inner ring 10 are coaxially pivoted with the front end part of the lower clamp 2.

Specifically, as shown in fig. 6 and 7, the upper clamp 1 is provided with an upper pressing sawtooth 5, the upper pressing sawtooth 5 is located at the rear side of the upper shaft hole 12, the lower clamp 2 is correspondingly provided with a lower pressing sawtooth 14, and the upper pressing sawtooth 5 is movably clamped with the lower pressing sawtooth 14.

Furthermore, the rack part on the upper crimping saw tooth 5 and the rack part on the lower crimping saw tooth 14 are oppositely arranged, the positions of the upper pliers 1 and the lower pliers 2 are fixed through the meshing between the racks, and the clamped calculus is prevented from being separated from the clamping pliers due to hand loss.

Specifically, the axial width of the lower clamp outer ring 7 is larger than the axial width of the upper clamp outer ring 6.

Specifically, the upper clamping outer ring 6 is pivotally connected to the front end of the upper tong 1 via an adjustable pivot pin 11.

Furthermore, the front end of the upper clamp 1 is provided with a fork-shaped front end, the fork-shaped front end is provided with two spaced and isolated fork strips, the pivoting parts of the upper clamping outer ring 6 and the upper clamping inner ring 9 are both positioned between the two fork strips, and the pivoting pin 11 penetrates through the two fork strips, the upper clamping outer ring 6 and the upper clamping inner ring 9, so that the adjustable pivoting of the upper clamping outer ring 6 and the upper clamping inner ring 9 and the front end part of the upper clamp 1 is realized.

Further, the end of the pivot pin 11 is provided with a polygonal groove, and the pivot pin 11 is rotated by a wrench fitted into the polygonal groove to tighten or loosen the pivot pin 11.

The working principle is as follows: when the stone taking channel is narrow and the diameter of the stone is large, the pin joint pins 11 on the upper forceps 1 and the lower forceps 2 are respectively unscrewed, the angles of the upper clamping outer ring 6 and the lower clamping outer ring 7 are adjusted to enable the upper clamping outer ring and the lower clamping outer ring to be parallel to obtain parallel annular jaws, the pin joint pins 11 are screwed down, and the stone is clamped by utilizing the inner diameter of the annular jaws;

when the stone taking channel is wide and the diameter of the stone is small, the pin joint pins 11 on the upper forceps 1 and the lower forceps 2 are respectively unscrewed, the angles of the upper clamping outer ring 6 and the lower clamping outer ring 7 are adjusted to form an annular forceps opening with an included angle, the pin joint pins 11 are screwed down, and the front end of the annular forceps opening is used for clamping the stone.

Example 2

This embodiment is different from embodiment 1 in that the upper clamp outer ring 6 and the upper clamp inner ring 9 in this embodiment are pivotally connected to the upper clamp 1 by the same pivot pin 11. Similarly, the lower clamping outer ring 7 and the lower clamping inner ring 10 are pivoted with the lower tong 2 through the same pivot pin 11.

When the stone taking channel is wide and the diameter of the stone is small, the pin joint 11 on the upper forceps 1 and the lower forceps 2 is respectively unscrewed, the angle between the upper clamping inner ring 9 and the lower clamping inner ring 10 is adjusted to form an annular forceps opening with an included angle, the pin joint 11 is screwed down, and the front end of the annular forceps opening is used for clamping the stone.

The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the independent claims of the present invention are within the scope of the present invention.

Claims

1. A stone holding forceps, comprising:

an upper clamp (1) which is provided with an upper shaft hole (12) and an upper holding part (4) from the front end to the back in sequence;

a lower tong (2) which is provided with a lower shaft hole (13) and a lower holding part (8) corresponding to the upper tong (1);

the shaft pin (3) penetrates through the upper shaft hole (12) and the lower shaft hole (13) and is locked for hinging the upper pliers (1) and the lower pliers (2);

an upper clamping outer ring (6) which is pivoted to the front end part of the upper pliers (1) and is locked;

and the lower clamping outer ring (7) is pivoted to the front end part of the lower clamp (2) and locked.

2. The stone gripper of claim 1 wherein: the clamping device is characterized by further comprising an upper clamping inner ring (9) which is pivoted to the end part of the front end of the upper clamp (1), and the upper clamping inner ring (9) is positioned in the upper clamping outer ring (6).

3. The stone gripper of claim 2 wherein: the upper clamping outer ring (6) and the upper clamping inner ring (9) are arranged in a concentric circle.

4. The stone gripper of claim 2 wherein: the clamping device also comprises a lower clamping inner ring (10) which is pivoted at the front end part of the lower pliers (2), and the lower clamping inner ring (10) is positioned in the lower clamping outer ring (7).

5. The stone gripper of claim 4 wherein: the lower clamping outer ring (7) and the upper clamping inner ring (9) are arranged in a concentric circle.

6. The stone gripper of claim 1 wherein: last pincers (1) are last to be equipped with crimping sawtooth (5), and go up crimping sawtooth (5) and be located go up shaft hole (12) rear side, correspond on pincers (2) down and be equipped with down crimping sawtooth (14), go up crimping sawtooth (5) and push down crimping sawtooth (14) activity joint.

7. The stone gripper of claim 1 wherein: the axial width of the lower clamping outer ring (7) is greater than the axial width of the upper clamping outer ring (6).

8. The stone gripper of any one of claims 1-7 wherein: the upper clamping outer ring (6) is pivoted with the front end part of the upper pliers (1) through an adjustable pivoting pin (11).