Suture forceps

Abstract

The utility model discloses a pair of suture forceps, which comprises a fixed forceps handle and a movable forceps handle, one end of the fixed forceps handle is hinged with one end of the movable forceps handle, the end part of the fixed forceps handle is provided with a forceps rod with a hollow structure, one end of the forceps rod is fixedly connected with the hinged end of the fixed forceps handle, and the other end of the forceps rod is provided with a fixed forceps mouth. A movable part is arranged in the forceps rod, one end of the movable part is rotationally connected with the hinged end of the movable forceps handle, the other end of the movable part is provided with a movable forceps mouth matched with the fixed forceps mouth, the movable forceps mouth is rotationally connected with the movable part, and an elastic body with shape memory is arranged on the periphery of the joint in a sleeving mode. And the elastic body can separate the movable jaw from the fixed jaw under the condition that the movable part is not subjected to external force. The utility model provides a pair of suture forceps, which can be used for suturing in a narrow space under a microscope, can realize the withdrawal of the forceps mouth after suturing, improves the suturing accuracy and efficiency, and shortens the operation time.

Description

Technical Field

[0001] The utility model belongs to the field of medical devices, and particularly relates to a suture forceps. Background Art

[0002] As a minimally invasive surgical method, laparoscopic surgery has been increasingly widely used due to its characteristics of less tissue dissection, less surgical trauma, and rapid postoperative recovery. Different from open surgery, the operating space under the laparoscope is narrow (skin incision of 2 mm to 5 mm), and it is difficult to suture. Existing open suture surgical instruments are usually relatively large in size and have complex operating steps. Therefore, when using existing instruments, only through years of experience accumulation can one master the suture technique under the laparoscope proficiently, which requires a lot of time to practice. Even for experienced doctors, it takes a long time to suture the Achilles tendon tissue under the laparoscope, and the suture accuracy and efficiency are not high. This suture technique mastered by only a few people takes a long time during the operation, which not only increases the workload of doctors, but also brings inconvenience to patients during the long suture process and is not easy to promote.

[0003] Therefore, it is an urgent technical problem for those skilled in the art to provide a suture forceps with a simple structure, convenient operation, and capable of performing efficient and accurate suture and withdrawal in a narrow space under the laparoscope. Summary of the Utility Model

[0004] The utility model provides a suture forceps, which can perform suture in a narrow space under the laparoscope, and can realize the withdrawal of the forceps jaws after suture, improve the suture accuracy and efficiency, and shorten the operation time.

[0005] To solve the above technical problems, the technical solution provided by the utility model is as follows:

[0006] A fixed forceps handle and a movable forceps handle, one end of the fixed forceps handle and one end of the movable forceps handle are hinged together, a hollow-structured forceps rod is arranged at the end of the fixed forceps handle, one end of the forceps rod is fixedly connected to the hinged end of the fixed forceps handle, and a fixed forceps jaw is arranged at the other end. An activity part is arranged inside the forceps rod. One end of the activity part is rotationally connected to the hinged end of the movable forceps handle, and a movable forceps jaw matched with the fixed forceps jaw is arranged at the other end. A first through hole is opened on the movable forceps jaw, and the front end is a tip. A second through hole is opened on the fixed forceps jaw, and the second through hole is arranged opposite to the tip; the movable forceps jaw is rotationally connected to the activity part, and an elastic body with shape memory is sleeved on the outer periphery of the connection part. The elastic body can separate the movable forceps jaw from the fixed forceps jaw when the activity part is not affected by external force.

[0007] Further, when the movable forceps handle rotates around the hinged end, it can drive the activity part to move along the axis inside the forceps rod.

[0008] Further, the movable part is a rod-shaped structure, a first tooth is provided at the end of the movable part, a second tooth is provided on the outer wall of the end of the movable pliers handle, and the first tooth matches the second tooth.

[0009] Further, the movable part is an elastic conveyor belt, one end of the movable part is fixedly connected to the hinged end of the movable pliers handle, and the other end is fixedly connected to the movable pliers mouth.

[0010] Further, the middle of the movable part is sleeved and fixed on the outer wall of the hinged end of the movable pliers handle, and both ends pass through the inside of the pliers rod and are fixedly connected to both sides of the movable pliers mouth.

[0011] Further, a first collar is provided at one end of the movable pliers handle, a first cylinder is provided at the other end, a second collar is provided at one end of the fixed pliers handle, and a second cylinder is provided at the other end, and the first cylinder is hinged to the second cylinder.

[0012] Further, the movable pliers mouth is L-shaped and bent toward the fixed pliers mouth.

[0013] Further, the fixed pliers mouth is arc-shaped and bent toward the direction of the movable pliers mouth.

[0014] Further, the L-shaped movable pliers mouth includes a connected long rod and a short rod, the long rod is connected to the movable part, and the length of the elastic body sleeved on the long rod occupies half or more of the length of the long rod.

[0015] Further, the elastic body is made of a shape memory metal material or a shape memory polymer material.

[0016] The beneficial effects of the present utility model: The suture forceps provided by the present utility model can pass through the joint puncture channel and operate in a narrow skin incision; the movable pliers mouth and the fixed pliers mouth cooperate, and under the operation of the movable pliers handle, the movable pliers mouth punctures the suture surface, increasing the stability during suturing; the elastic body on the movable pliers mouth helps the movable pliers mouth after puncturing the suture surface to automatically return to the initial position, facilitating the withdrawal of the suture forceps and realizing the puncture and fixation of the suture; the various driving methods between the movable pliers handle and the movable pliers mouth can make the operation more accurate, improving the stability and success rate of the operation. Description of the Drawings

[0017] Figure 1 It is the overall structure diagram of the suture forceps of the first embodiment of the present utility model;

[0018] Figure 2 It is the exploded view of the suture forceps of the first embodiment of the present utility model;

[0019] Figure 3 It is the structure diagram of the movable pliers mouth of the first embodiment of the present utility model;

[0020] Figure 4 It is a partial structure diagram of the movable jaw and the fixed jaw of the first embodiment of the present utility model;

[0021] Figure 5 It is an overall structure diagram of the suture forceps of the second embodiment of the present utility model;

[0022] Figure 6 It is an exploded view of the suture forceps of the second embodiment of the present utility model.

[0023] The reference numerals include:

[0024] 100 - fixed forceps handle, 110 - second collar, 120 - second cylinder

[0025] 200 - movable forceps handle, 210 - first collar, 220 - first cylinder

[0026] 221 - second tooth, 300 - forceps rod, 400 - movable part

[0027] 410 - first tooth, 500 - movable jaw, 510 - long rod

[0028] 520 - short rod, 530 - first through hole, 540 - tip

[0029] 600 - fixed jaw, 610 - second through hole, 700 - elastic body

[0030] 420 - screw Specific embodiments

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0032] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0035] The present utility model provides an embodiment of a first suture forceps, and the specific structure is as Figure 1-4 shown, including a fixed forceps handle 100 and a movable forceps handle 200 hinged to each other at one end. A first collar 210 is provided at one end of the movable forceps handle 200, and a first cylinder 220 is provided at the other end. A second collar 110 is provided at one end of the fixed forceps handle 100, and a second cylinder 120 is provided at the other end. The first cylinder 220 is hinged to the second cylinder 120. A hollow-structured forceps rod 300 is provided at the hinged end of the fixed forceps handle 100. One end of the forceps rod 300 is fixedly connected to the second cylinder 120, and a fixed forceps jaw 600 is provided at the other end. An active part 400 is provided inside the forceps rod 300. One end of the active part 400 is rotatably connected to the movable forceps handle 200, and a movable forceps jaw 500 matching the fixed forceps jaw 600 is provided at the other end. The movable forceps jaw 500 is rotatably connected to the active part 400, and an elastomer 700 with shape memory is sleeved on the outer periphery of the connection part. The elastomer 700 can separate the movable forceps jaw 500 from the fixed forceps jaw 600 when the active part 400 is not under external force.

[0036] As Figure 2 shown, the active part 400 is a rod-shaped structure, and a first tooth 410 is provided at its end. A second tooth 221 is provided on the outer wall of the first cylinder 220. The first tooth 410 cooperates with the second tooth 221. Therefore, the operator controls the rotation of the movable forceps jaw 500 towards the fixed forceps jaw 600 by rotating the movable forceps handle 200 to realize puncturing and suturing the surface.

[0037] As Figure 3 and Figure 4As shown, the movable jaw 500 is L-shaped and bent towards the fixed jaw 600. The fixed jaw 600 is arc-shaped and bent towards the direction of the movable jaw 500. The L-shaped movable jaw 500 includes a connected long rod 510 and a short rod 520. The long rod 510 is connected to the movable part 400, and the elastic body 700 is sleeved on the long rod 510 and occupies half or more of the length of the long rod. The elastic body 700 is made of a shape memory metal material or a shape memory polymer material, so as to facilitate the elastic body 700 to drive the movable jaw 500 to rebound to the initial position. A first through hole 530 is formed in the movable jaw 500, and the front end is a tip 540. A second through hole 610 is formed in the fixed jaw 600, and the second through hole 610 is arranged opposite to the tip 540.

[0038] When the suture forceps provided by the present utility model are applied to perform suture operations in endoscopic surgeries, the specific operations are as follows: The suture passes through the first through hole 530 on the movable jaw 500 and winds back to form a double suture; the fixed jaw 600, movable jaw 500, forceps rod 300, fixed forceps handle 100, and movable forceps handle 200 of the suture forceps pass through the endoscopic working channel and enter the joint interior; with the assistance of the arthroscope, the suture position is found; the fixed forceps handle 100 and movable forceps handle 200 of the suture forceps are operated to make the fixed jaw 600 and movable jaw 500 in an open state and located on both sides of the suture surface to be sutured respectively; the fixed jaw 600 is attached to one side of the suture surface to serve as a stress point for the convenience of the doctor's operation; the needle entry point of the movable jaw 500 is found under the arthroscope; the movable forceps handle 200 of the suture forceps is operated to drive the movable part 400 by the movable forceps handle 200. The movable part 400 slides backward in the forceps rod 300, and then drives the movable jaw 500 to rotate inwards and pierce into the suture surface and the second through hole 610 on the fixed jaw 600; when the first through hole 530 at the front end of the movable jaw 500 carries the double suture and passes through the second through hole 610, when the movable forceps handle 200 is released and restored to the initial position, the elastic body 700 drives the movable jaw 500 to rotate outwards and separate from the fixed jaw 600, and returns to the position when in the open state, completing one suture.

[0039] As Figure 5 and Figure 6As shown in the figure, the present utility model also provides a second embodiment, whose structure is basically the same as that of the first embodiment, except for the connection driving mode with the movable pliers handle 200. In this embodiment, the movable part 400 is a flexible structure, which is an elastic conveyor belt structure. The first cylinder 220 and the movable pliers jaw 500 are driven and connected through the movable part 400 of the conveyor belt structure. The middle part of the movable part 400 is sleeved and fixed on the outer periphery of the first cylinder 220, and both ends respectively pass through the pliers rod 300 and are fixed to the upper and lower outer walls of the movable pliers jaw 500 by screws 420. The movable part 400 can transmit the rotational relationship between the movable pliers handle 200 and the movable pliers jaw 500, and realize the rotation of the movable pliers jaw 500 by rotating the movable pliers handle 200 to complete suturing.

[0040] The above content is only the preferred embodiment of the present utility model. For those of ordinary skill in the art, many changes can be made in the specific implementation manners and application scopes according to the idea of the present utility model. As long as these changes do not depart from the concept of the present utility model, they all belong to the protection scope of the present utility model.

Claims

1. A suture forceps, characterized in that, It includes a fixed pliers handle (100) and a movable pliers handle (200). One end of the fixed pliers handle (100) and one end of the movable pliers handle (200) are hinged together. A hollow-structured pliers rod (300) is provided at the end of the fixed pliers handle (100). One end of the pliers rod (300) is fixedly connected to the hinged end of the fixed pliers handle (100), and a fixed pliers jaw (600) is provided at the other end. An active part (400) is arranged inside the pliers rod (300). One end of the active part (400) is rotatably connected to the hinged end of the movable pliers handle (200), and a movable pliers jaw (500) that cooperates with the fixed pliers jaw (600) is provided at the other end. A first through hole (530) is opened on the movable pliers jaw (500), and the front end is a tip (540). A second through hole (610) is opened on the fixed pliers jaw (600), and the second through hole (610) is arranged opposite to the tip (540); the movable pliers jaw (500) is rotatably connected to the active part (400), and an elastomer (700) with shape memory is sleeved on the outer periphery at the connection part. The elastomer (700) can separate the movable pliers jaw (500) from the fixed pliers jaw (600) when the active part (400) is not under external force.

2. The suture forceps according to claim 1, characterized in that, When the movable pliers handle (200) rotates around the hinged end, it can drive the active part (400) to move along the axis inside the pliers rod (300).

3. The suture forceps according to claim 2, characterized in that, The active part (400) is in a rod-shaped structure, and a first tooth (410) is provided at its end. A second tooth (221) is provided on the outer wall of the end of the movable pliers handle (200), and the first tooth (410) matches the second tooth (221).

4. The suture forceps according to claim 2, wherein, The active part (400) is an elastic conveyor belt. One end of the active part (400) is fixedly connected to the hinged end of the movable pliers handle (200), and the other end is fixedly connected to the movable pliers jaw (500).

5. The suture forceps according to claim 4, characterized in that, The middle part of the active part (400) is sleeved and fixed on the outer wall of the hinged end of the movable pliers handle (200), and both ends pass through the inside of the pliers rod (300) and are fixedly connected to both sides of the movable pliers jaw (500).

6. The suture forceps according to claim 3 or 5, characterized in that A first collar (210) is provided at one end of the movable pliers handle (200), and a first cylinder (220) is provided at the other end. A second collar (110) is provided at one end of the fixed pliers handle (100), and a second cylinder (120) is provided at the other end. The first cylinder (220) is hinged to the second cylinder (120).

7. The suture forceps according to claim 6, characterized in that, The movable pliers jaw (500) is L-shaped and bends towards the fixed pliers jaw (600).

8. The suture forceps according to claim 7, characterized in that, The fixed pliers jaw (600) is arc-shaped and bends towards the direction of the movable pliers jaw (500).

9. The suture forceps according to claim 8, wherein The L-shaped movable pliers jaw (500) includes a connected long rod (510) and a short rod (520). The long rod (510) is connected to the active part (400), and the length of the elastomer (700) sleeved on the long rod (510) occupies half or more of the length of the long rod (510).

10. The suture forceps according to claim 9, wherein, The elastomer (700) is made of a shape memory metal material or a shape memory polymer material.

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