Arthroscopic surgical suture cutting tool

Abstract

The utility model relates to the technical field of medical instruments, in particular to an arthroscopic surgery suture cutting tool which comprises a fixed handle, a handle rotating shaft is connected to the fixed handle, and a rotating handle is arranged on the side wall of the handle rotating shaft and corresponds to the fixed handle. A reset spring is connected between the fixed handle and the rotating handle through a fixing base, and one end of the fixed handle is connected with a fixed sleeve. By means of the fixed handle, the rotating handle, the fixed sleeve, the movable pull rod, the movable blade, the fixed blade and the mutual action of all the components and the arrangement of the knife edges of the movable blade and the fixed blade, cutting of the suture line is completed, the whole hand can be used for exerting force, the movable blade and the fixed blade are made to cut the suture line, and the suture line cutting efficiency is improved. When the suture line is sheared, due to the arrangement of knife edges of the movable blade and the fixed blade, the suture line can be sheared more easily, and the device can be more durable.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is a kind of arthroscopic surgery suture cutting tool. BACKGROUND

[0002] Surgical suture is often used in operation process, when suture needs to use surgical scissors to cut off the excess surgical suture to prevent surgical suture from being too long.

[0003] Especially when doing arthroscopy and other orthopedic surgery, the traditional suture cutting tool is mostly cut by the pressing of fingers during use, which results in a large force used when cutting the suture. At the same time, due to the long time use of the device, the rotating shaft in the scissor-type structure is prone to loosening, which makes it difficult to cut the suture, and the service life of the device is also reduced. In view of the above problems, it is necessary to provide a kind of arthroscopic surgery suture cutting tool. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of arthroscopic surgery suture cutting tool to solve the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of arthroscopic surgery suture cutting tool, including fixed handle, the fixed handle is connected with handle pivot, the side wall of the handle pivot is provided with rotating handle and corresponds to the fixed handle, the fixed handle and rotating handle are connected with return spring through fixed seat, one end of the fixed handle is connected with fixed sleeve, the fixed sleeve and fixed handle are provided with fixed clamping column, the inner cavity of the fixed sleeve is connected with mobile pull rod, the rotating handle is provided with pull rod connecting column and corresponds to the mobile pull rod, the side wall of the fixed sleeve is provided with limit clamping slot and corresponds to the mobile pull rod, the side wall of the fixed sleeve is provided with limit nail and corresponds to the mobile pull rod, one end of the fixed sleeve is provided with blade limit slot and blade fixed slot, the mobile blade is arranged in the blade limit slot, the fixed blade is arranged in the blade fixed slot, the mobile blade is provided with blade installation slot and corresponds to the mobile pull rod, the fixed blade is provided with suture avoiding slot, blade avoiding slot and observation slot, one end of the fixed sleeve and between the blade limit slot and blade fixed slot are provided with threading slot.

[0007] As a preferred scheme of the utility model, the rotating handle is provided with an engaging hole corresponding to the handle pivot, wherein the handle pivot is connected to the engaging hole in a rotating manner, the fixed handle and the rotating handle are provided with a hand-shaped slot, and the straight-line distance from the hand-shaped slot on the rotating handle to the handle pivot is greater than the straight-line distance from the pull rod connecting column to the handle pivot.

[0008] As the preferred scheme of the utility model, the inner cavity of the fixed handle and the rotating handle correspondingly has an installation groove, the cooperation mode of the rotating handle and the installation groove is clearance fit, the side wall of the fixed sleeve and the fixed clamping column correspondingly has a clamping groove, and the cooperation mode of the fixed clamping column and the clamping groove is clearance fit.

[0009] As the preferred scheme of the utility model, the mobile pull rod and the pull rod connecting column correspondingly have a pull rod connecting groove, the cooperation mode of the pull rod connecting column and the pull rod connecting groove is clearance fit, and the inner cavity of the fixed sleeve and the mobile pull rod are clearance fit.

[0010] As the preferred scheme of the utility model, the end face of the mobile pull rod and the limiting clamping groove correspondingly have a limiting block, the connecting mode of the limiting clamping groove and the limiting block is sliding connection, the side wall of the mobile pull rod and the limiting nail correspondingly have a limiting groove, and the connecting mode of the limiting nail and the limiting groove is sliding connection.

[0011] As the preferred scheme of the utility model, the cooperation mode of the blade limiting groove and the mobile blade is sliding connection, the end face of the mobile pull rod and the blade installation groove correspondingly have a mounting seat, and the cooperation mode of the blade installation groove and the mounting seat is clearance fit.

[0012] As the preferred scheme of the utility model, the front blade face of the mobile blade is provided with a blade edge, a shearing angle is formed between the blade edge and the rear blade face, the cooperation mode of the blade avoiding groove and the mobile blade is clearance fit, and the blade avoiding groove on the fixed blade and the mobile blade correspondingly have an upper blade edge and a lower blade edge.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] In the utility model, the fixed handle, the rotating handle, the fixed sleeve, the mobile pull rod, the mobile blade and the fixed blade are arranged in the arthroscopic surgery suture cutting tool, the fixed handle, the rotating handle, the fixed sleeve, the mobile pull rod, the mobile blade and the fixed blade and the mutual action among the components and the blade edges of the mobile blade and the fixed blade are utilized, and the shearing of the suture is completed, so that the mobile blade and the fixed blade can shear the suture by using the whole hand force in the process of using the arthroscopic surgery suture cutting tool, the suture shearing is more relaxed due to the blade edge arrangement of the mobile blade and the fixed blade, and the device is more durable. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the utility model.

[0016] Figure 2 for the utility model Figure 1 of the cross section structure schematic diagram;

[0017] Figure 3 for the utility model Figure 1 of the explosion structure schematic diagram;

[0018] Figure 4 for the utility model mobile blade structure schematic diagram;

[0019] Figure 5 for the utility model fixed blade structure schematic diagram.

[0020] In the figure: 1, fixed handle;2, handle pivot;3, rotating handle;4, return spring;5, fixed sleeve;6, fixed clamping column;7, mobile pull rod;8, pull rod connecting column;9, limit clamping groove;10, limit nail;11, blade limit slot;12, blade fixed slot;13, mobile blade;14, fixed blade;15, blade installation slot;16, suture avoidance slot;17, blade avoidance slot;18, observation slot;19, threading slot. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described below in conjunction with the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range protected by the utility model.

[0022] In order to facilitate understanding the utility model, the utility model will be described more fully below in conjunction with relevant drawings, give several embodiments of the utility model, however, the utility model can be realized in many different forms, and is not limited to the embodiments described in the text, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intervening element, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be an intervening element, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety.

[0025] Embodiment, please refer to Figures 1-5 The utility model provides a technical scheme:

[0026] A arthroscopic surgery suture cutting tool, including fixed handle 1, fixed handle 1 is connected with handle pivot 2, and the lateral wall of handle pivot 2 is provided with rotating handle 3 and corresponds with fixed handle 1, and reset spring 4 is connected between fixed handle 1 and rotating handle 3 through fixed seat, one end of fixed handle 1 is connected with fixed sleeve 5, and fixed clamping column 6 is arranged between fixed handle 1 and fixed sleeve 5, mobile pull rod 7 is connected in the inner chamber of fixed sleeve 5, pull rod connecting column 8 is arranged on rotating handle 3 and corresponds with mobile pull rod 7, limit clamping groove 9 is set up on the lateral wall of fixed sleeve 5 and corresponds with mobile pull rod 7, limit nail 10 is set up on the lateral wall of fixed sleeve 5 and corresponds with mobile pull rod 7, blade limiting slot 11 and blade fixed slot 12 are set up in one end of fixed sleeve 5, mobile blade 13 is arranged in blade limiting slot 11, fixed blade 14 is arranged in blade fixed slot 12, blade installation slot 15 is set up on mobile blade 13 and corresponds with mobile pull rod 7, suture avoiding slot 16, blade avoiding slot 17 and observation slot 18 are set up on fixed blade 14, and threading groove 19 is set up in one end of fixed sleeve 5 and between blade limiting slot 11 and blade fixed slot 12;

[0027] In this embodiment, reference is made to Figure 1 、 Figure 2 、 Figure 3 And Figure 5 An engaging hole is set up on rotating handle 3 and corresponds with handle pivot 2, wherein the connecting mode of handle pivot 2 and the engaging hole is rotary connection, under the condition that hand-shaped slot is set up on fixed handle 1 and rotating handle 3, the rotating handle 3 is rotated by hand force, when the rotating handle 3 is rotated, mobile pull rod 7 is driven to move forward, when mobile pull rod 7 moves forward, mobile blade 13 is driven to move forward, and a cutting edge is set up on the rake face of mobile blade 13, wherein the cutting edge and the relief form a shearing angle, the cooperation mode of blade avoiding slot 17 and mobile blade 13 is gap cooperation, and under the condition that the blade avoiding slot 17 on fixed blade 14 is provided with upper cutting edge and lower cutting edge and corresponds with mobile blade 13, the suture is cut off;

[0028] Furthermore, a connecting hole is provided on the rotating handle 3 and corresponding to the handle shaft 2. The connection between the handle shaft 2 and the connecting hole is a rotatable connection. Hand contour grooves are provided on the fixed handle 1 and the rotating handle 3. The straight-line distance from the hand contour groove on the rotating handle 3 to the handle shaft 2 is greater than the straight-line distance from the pull rod connecting post 8 to the handle shaft 2. An installation groove is provided in the inner cavity of the fixed handle 1 and corresponding to the rotating handle 3. The fit between the rotating handle 3 and the installation groove is a clearance fit, which makes the rotating handle 3 more effortless to rotate.

[0029] Furthermore, a slot is provided on the side wall of the fixing sleeve 5 corresponding to the fixing pin 6, wherein the fixing pin 6 and the slot are fitted with a clearance fit, which facilitates the fixing of the fixing handle 1 and the fixing sleeve 5.

[0030] Furthermore, a connecting groove is provided on the movable pull rod 7 and corresponding to the pull rod connecting post 8. The pull rod connecting post 8 and the pull rod connecting groove are fitted with a clearance fit. The inner cavity of the fixed sleeve 5 and the movable pull rod 7 are fitted with a clearance fit, which can drive the movable pull rod 7 to move in the inner cavity of the fixed sleeve 5.

[0031] Furthermore, a limit block is provided on the end face of the movable pull rod 7 and corresponding to the limit slot 9, wherein the connection between the limit slot 9 and the limit block is a sliding connection, which can limit the movable pull rod 7 to the front and rear.

[0032] Furthermore, a limiting groove is formed on the side wall of the movable pull rod 7, corresponding to the limiting pin 10. The limiting pin 10 and the limiting groove are connected by a sliding connection, which can limit the upper and lower movement of the movable pull rod 7.

[0033] Furthermore, the blade limiting groove 11 and the movable blade 13 are connected by a sliding connection. A mounting seat is provided on the end face of the movable pull rod 7, corresponding to the blade mounting groove 15. The blade mounting groove 15 and the mounting seat are fitted with a clearance fit. A cutting edge is provided on the front blade surface of the movable blade 13, and a shearing angle is formed between the cutting edge and the rear blade surface. The blade clearance groove 17 and the movable blade 13 are fitted with a clearance fit. An upper cutting edge and a lower cutting edge are provided in the blade clearance groove 17 on the fixed blade 14, corresponding to the movable blade 13, to facilitate the shearing of the suture by the fixed blade 14 and the movable blade 13.

[0034] The utility model discloses a work flow: when using arthroscopic surgery suture cutting tool, first, the suture is placed between fixed blade 14 and moving blade 13 from threading groove 19, and the corresponding interface hole is set up on rotating handle 3 and handle pivot 2, wherein the connecting mode of handle pivot 2 and interface hole is rotary connection, under the condition that fixed handle 1 and rotating handle 3 are set up hand profiling groove, hand rotates rotating handle 3, when rotating handle 3 rotates, the installation groove is set up in the inner chamber of fixed handle 1 and corresponding rotating handle 3, wherein the cooperation mode of rotating handle 3 and installation groove is clearance fit, the clamping groove is set up on the lateral wall of fixed sleeve 5 and corresponding fixed clamping column 6, wherein the cooperation mode of fixed clamping column 6 and clamping groove is clearance fit, the pull rod connecting groove is set up on moving pull rod 7 and corresponding pull rod connecting column 8, wherein the cooperation mode of pull rod connecting column 8 and pull rod connecting groove is clearance fit, the inner chamber of fixed sleeve 5 and moving pull rod 7 cooperation mode is clearance fit, the limiting block is set up on the end face of moving pull rod 7 and corresponding limiting clamping groove 9, wherein the connecting mode of limiting clamping groove 9 and limiting block is sliding connection, the limiting slot is set up on the lateral wall of moving pull rod 7 and corresponding limiting nail 10, wherein the connecting mode of limiting nail 10 and limiting slot is sliding connection under the condition that moving pull rod 7 is driven to move forward, when moving pull rod 7 moves forward, the connecting mode of blade limiting slot 11 and moving blade 13 is sliding connection, the mounting seat is set up on the end face of moving pull rod 7 and corresponding blade installation groove 15, wherein the cooperation mode of blade installation groove 15 and mounting seat is clearance fit under the condition that moving blade 13 is driven to move forward, the cutting edge is set up on the front blade face of moving blade 13, wherein the cutting angle is formed between cutting edge and rear blade face, the cooperation mode of blade avoiding groove 17 and moving blade 13 is clearance fit, the upper cutting edge and lower cutting edge are set up in blade avoiding groove 17 on fixed blade 14 and corresponding moving blade 13 under the condition that make suture cut, then loosen hand, under the action of reset spring 4, moving blade 13 is reset to the original position.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An arthroscopic surgical suture cutting tool comprising a fixed handle (1), characterized in that: The fixed handle (1) is connected with a handle rotating shaft (2), the side wall of the handle rotating shaft (2) is provided with a rotating handle (3) corresponding to the fixed handle (1), the fixed handle (1) and the rotating handle (3) are connected with a reset spring (4) through a fixed seat, one end of the fixed handle (1) is connected with a fixed sleeve (5), the fixed handle (1) and the fixed sleeve (5) are provided with a fixed clamping column (6), the inner cavity of the fixed sleeve (5) is connected with a movable pull rod (7), the rotating handle (3) is provided with a pull rod connecting column (8) corresponding to the movable pull rod (7), the side wall of the fixed sleeve (5) is provided with a limiting clamping groove (9) corresponding to the movable pull rod (7), the side wall of the fixed sleeve (5) is provided with a limiting nail (10) corresponding to the movable pull rod (7), one end of the fixed sleeve (5) is provided with a blade limiting groove (11) and a blade fixing groove (12), the blade limiting groove (11) is provided with a movable blade (13), the blade fixing groove (12) is provided with a fixed blade (14), the movable blade (13) is provided with a blade mounting groove (15) corresponding to the movable pull rod (7), the fixed blade (14) is provided with a suture avoiding groove (16), a blade avoiding groove (17) and an observation groove (18), one end of the fixed sleeve (5) and between the blade limiting groove (11) and the blade fixing groove (12) is provided with a threading groove (19).

2. An arthroscopic suture cutting tool according to claim 1, wherein: The rotating handle (3) is provided with an adapter hole corresponding to the handle rotating shaft (2), the connection mode of the handle rotating shaft (2) and the adapter hole is rotating connection, the fixed handle (1) and the rotating handle (3) are provided with a hand profiling groove, the straight line distance from the hand profiling groove position on the rotating handle (3) to the handle rotating shaft (2) is greater than the straight line distance from the pull rod connecting column (8) to the handle rotating shaft (2).

3. An arthroscopic suture cutting tool according to claim 1, wherein: The inner cavity of the fixed handle (1) is provided with a mounting groove corresponding to the rotating handle (3), the cooperation mode of the rotating handle (3) and the mounting groove is gap cooperation, the side wall of the fixed sleeve (5) is provided with a clamping groove corresponding to the fixed clamping column (6), the cooperation mode of the fixed clamping column (6) and the clamping groove is gap cooperation.

4. An arthroscopic surgical suture cutting tool according to claim 1, wherein: The movable pull rod (7) is provided with a pull rod connecting groove corresponding to the pull rod connecting column (8), the cooperation mode of the pull rod connecting column (8) and the pull rod connecting groove is gap cooperation, the cooperation mode of the inner cavity of the fixed sleeve (5) and the movable pull rod (7) is gap cooperation.

5. An arthroscopic surgical suture cutting tool according to claim 1, wherein: The end surface of the movable pull rod (7) is provided with a limiting block corresponding to the limiting clamping groove (9), the connection mode of the limiting clamping groove (9) and the limiting block is sliding connection, the side wall of the movable pull rod (7) is provided with a limiting groove corresponding to the limiting nail (10), the connection mode of the limiting nail (10) and the limiting groove is sliding connection.

6. An arthroscopic surgical suture cutting tool according to claim 1, wherein: The connecting mode of the blade limiting groove (11) and the moving blade (13) is sliding connection, and the end face of the moving pull rod (7) is provided with a mounting seat corresponding to the blade mounting groove (15), wherein the cooperation mode of the blade mounting groove (15) and the mounting seat is clearance fit.

7. An arthroscopic surgical suture cutting tool according to claim 1, wherein: The moving blade (13) is provided with a blade edge on the rake surface, wherein the blade edge and the relief surface form a shearing angle, the cooperation mode of the blade avoiding groove (17) and the moving blade (13) is clearance fit, and the upper blade edge and the lower blade edge are arranged in the blade avoiding groove (17) of the fixed blade (14) and correspond to the moving blade (13).

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