CN210784553U

CN210784553U - Miniature crochet hook sword

Info

Publication number: CN210784553U
Application number: CN201921304115.4U
Authority: CN
Inventors: 海志凡; 董亚莉; 阿日嘠太
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-06-19
Anticipated expiration: 2029-08-13

Abstract

The utility model belongs to the field of medical equipment, in particular to a micro crochet hook knife, which aims at the problem that when the prior art is used for cutting pathological tissues, no corresponding shearing force exists, so that when the sharpness of a knife edge is not enough, the tearing phenomenon is easy to generate, the utility model provides a proposal that the micro crochet hook knife comprises a handle, the handle is of a hollow structure, a knife rod is rotatably connected on the handle, one end of the knife rod is provided with a knife head, one side of the knife rod is provided with a scale, one side of the top of the knife rod is fixedly provided with a mounting frame, and a rotating knife is rotatably connected on the mounting frame, the utility model can drive the rotating knife to rotate by pulling a connecting rod, thereby realizing the corresponding shearing force of the rotating knife and the knife head, being convenient for cutting the pathological tissues, so that when in use, the tearing phenomenon of the pathological tissues, therefore, the danger existing in the operation can be effectively eliminated.

Description

Miniature crochet hook sword

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a miniature crochet hook sword.

Background

The 7-shaped micro surgical needle knife is one kind of surgical knife for soft tissue needle knife in orthopaedics department. The scalpel consists of a scalpel handle and a scalpel body and a scalpel head, when a person enters skin in an operation, a front-end knife edge is used, and a cut is only 2mm large. But when the operation is performed to cut the pathological tissue, a blade with the upper end of 4mm is used, thereby reflecting the requirements of small damage and high efficiency. The sacroiliac fat hernia treatment instrument is very suitable for treating the sacroiliac fat hernia, and can effectively cut the fascia and enlarge a hernia hole to prevent recurrence. It can also cut off the herniated fat pedicle and neurovascular bundle to relieve pain. The knife is suitable for the release of large-area adhesion of superficial tissues;

at present, when a 7-shaped miniature surgical needle knife is used, due to the fact that corresponding shearing force is not generated when pathological tissues are cut, when the sharpness of a knife edge is not enough, the phenomenon of tearing is easy to generate, and therefore certain danger is caused to a patient.

Disclosure of Invention

The utility model aims at solving the problem that the prior art has no corresponding shearing force when cutting pathological tissues, so that the knife edge is not enough in sharpness and easy to tear, and providing a miniature crochet hook knife.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a miniature crochet hook knife comprises a handle, the handle is a hollow structure, a knife bar is rotatably connected on the handle, a knife head is arranged at one end of the knife bar, a graduated scale is arranged on one side of the cutter bar, a mounting frame is fixedly mounted on one side of the top of the cutter bar, and the mounting rack is rotatably connected with a rotating cutter, the other side of the cutter bar is fixedly provided with a limiting pipe, an L-shaped pull rod is connected in the limiting pipe in a sliding way, and both ends of the L-shaped pull rod extend to the outer side of the limiting pipe, one end of the L-shaped pull rod is in transmission connection with the rotary cutter, a fixed plate is fixedly arranged on one side of the handle, two limit rods are symmetrically and slidably connected on the fixed plate, and one end fixedly connected with same connecting cover of two gag lever posts, the one end of L type pull rod extends to in the connecting cover and with connecting cover looks adaptation, one side fixed mounting of connecting cover has the connecting rod.

Preferably, the cover is equipped with spacing spring on the gag lever post, and the one end of two spacing springs all with one side fixed connection of fixed plate, and the other end of two spacing springs respectively with the other end fixed connection of two gag lever posts, utilize spacing spring, can conveniently drive and remove the cover and reset.

Preferably, the one end fixed mounting of L type pull rod has the removal rack, one side fixed mounting of mounting bracket has the carriage release lever, sliding sleeve is equipped with the slip ring on the carriage release lever, one side and the removal rack fixed connection of slip ring, one side fixed mounting who rotates the cutter has a rolling gear, rolling gear meshes with the removal rack mutually, meshes with rolling gear mutually through removing the rack, can drive when removing the rack and rotate the cutter.

Preferably, the inside sliding connection of handle has T type pole, the one end of T type pole extends to the outside of handle, a lateral symmetry fixed mounting of T type pole has two ball, and the one end fixed mounting of two ball has same dead lever, and the one end fixed mounting of dead lever has the arc rack, the inside fixed mounting of handle has the bracing piece, and has seted up the mounting hole on the bracing piece, and the rotation is connected with the connecting axle in the mounting hole, fixed cover is equipped with limit gear on the connecting axle, the rotation hole has been seted up on the handle, the other end of cutter arbor extends to in the handle and fixed cover establishes on the connecting axle, limit gear and arc rack swing joint utilize the meshing characteristic of the surplus limit gear of arc rack, can make things convenient for cutter arbor and handle to carry on spacingly.

Preferably, the inside symmetry of handle is rotated and is connected with two ball nut, the inner wall fixed mounting of handle has the connecting plate, and two ball run through two ball nut respectively and respectively with two ball nut threaded connection, ball runs through the connecting plate, the cover is equipped with torque spring on the ball, and torque spring's both ends respectively with ball nut and connecting plate fixed connection, sliding connection has the kelly on the connecting rod, and the kelly clamps with one side activity of T type pole, utilizes torque spring, can conveniently carry out elasticity spacing to the arc rack, utilizes the kelly can conveniently make T type pole and connecting rod simultaneous movement simultaneously.

Preferably, fixed mounting has the collar on the inner wall of spacing pipe, and L type pull rod runs through the collar, the cover is equipped with compression spring on the L type pull rod, compression spring's both ends respectively with collar and L type pull rod fixed connection, utilize compression spring, can conveniently reset L type pull rod.

The utility model has the advantages that: 1. the connecting rod is pulled to drive the L-shaped pull rod to move through the connecting cover, the moving rack can be pulled to move when the L-shaped pull rod moves, and therefore the rotating cutter can be driven to rotate through the rotating gear, so that the rotating cutter and the cutter head form a shearing force, and lesion tissues can be conveniently cut off;

2. when the angle of needs adjustment handle and cutter arbor, can be through promoting the kelly this moment, realize kelly and T type pole and clamp mutually, at this moment stimulate the connecting rod once more, just can drive T type pole and remove in the pulling L type pole, can drive two ball screw and remove when T type pole removes for arc rack and limit gear break away from the meshing, therefore the cutter arbor will lose spacingly, realize free rotation, can conveniently realize angle modulation with the handle.

3. Through setting up the connection cover, both can realize when certain angle appears between cutter arbor and handle, when driving the connection cover through the pulling connecting rod and remove, L type pull rod except can carry out lateral shifting along with the connecting rod this moment, also can take place longitudinal sliding in connecting the cover simultaneously to this causes the structure to contradict when can avoiding appearing the angle change between handle and the cutter arbor.

The utility model discloses a pulling connecting rod can realize driving the rotation cutter and take place to rotate to this realizes rotating cutter and tool bit and realizes corresponding shearing force, is convenient for excise pathological change tissue, so when using, can not cause the tearing phenomenon of pathological change tissue because the sharpness of tool bit is not enough, with this danger that can effectual elimination exist when doing the operation.

Drawings

FIG. 1 is a front view of a micro crochet hook of the present invention;

FIG. 2 is a rear view of the structure of a micro crochet hook provided by the present invention;

FIG. 3 is a front view of the internal structure of the handle of the micro crochet hook of the present invention;

fig. 4 is a three-dimensional view of a structure of a limit tube of a micro crochet hook provided by the utility model;

FIG. 5 is a top view of a connecting structure of a connecting rod, a T-shaped rod and a clamping rod of the micro crochet hook of the present invention;

fig. 6 is an enlarged view of the structure a of the micro crochet hook of the present invention.

In the figure: the cutting tool comprises a handle 1, a cutter bar 2, a mounting frame 3, a rotary cutter 4, a limiting tube 5, a pull rod 6L, a fixing plate 7, a limiting rod 8, a connecting cover 9, a limiting spring 10, a connecting rod 11, a T-shaped rod 12, a ball screw 13, a ball screw nut 14, a torsion spring 15, an arc-shaped rack 16, a connecting shaft 17, a limiting gear 18, a movable rack 19, a sliding ring 20, a movable rod 21, a rotary gear 22, a mounting ring 23, a compression spring 24 and a clamping rod 25.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-6, a miniature crochet hook knife comprises a handle 1, wherein the handle 1 is of a hollow structure, a cutter bar 2 is rotatably connected to the handle 1, one end of the cutter bar 2 is provided with a cutter head, one side of the cutter bar 2 is provided with a scale, one side of the top of the cutter bar 2 is fixedly provided with a mounting frame 3, the mounting frame 3 is rotatably connected with a rotary cutter 4, the other side of the cutter bar 2 is fixedly provided with a limiting tube 5, the limiting tube 5 is internally and slidably connected with an L-shaped pull rod 6, two ends of the L-shaped pull rod 6 extend to the outer side of the limiting tube 5, one end of the L-shaped pull rod 6 is in transmission connection with the rotary cutter 4, one side of the handle 1 is fixedly provided with a fixing plate 7, the fixing plate 7 is symmetrically and slidably connected with two limiting rods 8, one end of the two limiting rods 8 is fixedly connected with a same connecting cover, one side of the connecting cover 9 is fixedly provided with a connecting rod 11, the L-shaped pull rod 6 is driven to move through the connecting cover 9 by pulling the connecting rod 11, the moving rack 19 can be pulled to move when the L-shaped pull rod 6 moves, so that the rotating cutter 4 can be driven to rotate through the rotating gear 22, the rotating cutter 4 and the cutter head form a shearing force, lesion tissues can be conveniently cut off, when the angle between the handle 1 and the cutter bar 2 needs to be adjusted, the clamping rod 25 can be pushed to be clamped with the T-shaped rod 12, at the moment, the connecting rod 11 is pulled again, the T-shaped rod 12 can be driven to move while the L-shaped rod 6 is pulled, the two ball screws 13 can be driven to move when the T-shaped rod 12 moves, the arc-shaped rack 16 is disengaged from the limiting gear 18, therefore, the cutter bar 2 loses the limiting position, and free rotation is realized, can conveniently realize angle modulation with handle 1, connect cover 9 through setting up, both can realize when certain angle appears between cutter arbor 2 and handle 1, when driving to connect cover 9 and remove through pulling connecting rod 11, L type pull rod 6 removed can carry out lateral shifting along with connecting rod 11 this moment, also can take place longitudinal sliding in connecting cover 9 simultaneously, cause the structure to contradict when can avoiding appearing the angular variation between handle 1 and the cutter arbor 2 with this, the utility model discloses a pulling connecting rod 11 can realize driving and rotate cutter 4 and take place to rotate, realizes rotating cutter 4 with this and realizes realizing corresponding shearing force with the tool bit, is convenient for excise pathological change tissue, so when using, can not cause the tearing phenomenon of pathological change tissue because of the sharpness of the tool bit is not enough, with this can effectually eliminate the danger that exists when doing the operation.

The utility model discloses in, the cover is equipped with spacing spring 10 on the gag lever post 8, and two spacing spring 10's one end all with one side fixed connection of fixed plate 7, and two spacing spring 10's the other end respectively with two gag lever posts 8's other end fixed connection, utilize spacing spring 10, can conveniently drive and remove cover 9 and reset.

The utility model discloses in, the one end fixed mounting of L type pull rod 6 has removal rack 19, one side fixed mounting of mounting bracket 3 has carriage release lever 21, sliding sleeve is equipped with slip ring 20 on carriage release lever 21, one side and the removal rack 19 fixed connection of slip ring 20, one side fixed mounting who rotates cutter 4 has a rotating gear 22, rotating gear 22 meshes with removal rack 19 mutually, through removing the remaining rotating gear 22 of rack 19 meshes mutually, can be when removing rack 19 and removing, drive and rotate cutter 4 and rotate.

The utility model discloses in, the inside sliding connection of handle 1 has T type pole 12, the one end of T type pole 12 extends to the outside of handle 1, a lateral symmetry fixed mounting of T type pole 12 has two ball 13, and the one end fixed mounting of two ball 13 has same dead lever, the one end fixed mounting of dead lever has arc rack 16, the inside fixed mounting of handle 1 has the bracing piece, and seted up the mounting hole on the bracing piece, the rotation is connected with connecting axle 17 in the mounting hole, fixed cover is equipped with limit gear 18 on the connecting axle 17, the rotation hole has been seted up on handle 1, the other end of cutter arbor 2 extends to and fixed cover is established on connecting axle 17 in handle 1, limit

gear

18 and 16 swing joint of arc rack, utilize 16 remaining limit gear 18's of arc rack meshing characteristic, can make things convenient for cutter arbor 2 and handle 1 to carry on spa.

The utility model discloses in, the inside symmetry of handle 1 is rotated and is connected with two ball nut 14, the inner wall fixed mounting of handle 1 has the connecting plate, and two ball 13 run through two ball nut 14 respectively and respectively with two ball nut 14 threaded connection, ball 13 runs through the connecting plate, the cover is equipped with torque spring 15 on the ball 13, and torque spring 15's both ends respectively with ball nut 14 and connecting plate fixed connection, sliding connection has kelly 25 on the connecting rod 11, and kelly 25 clamps with one side activity of T type pole 12, utilize torque spring 15, can conveniently carry out elasticity spacingly to arc rack 16, it can conveniently make T type pole 12 and connecting rod 11 simultaneous movement to utilize kelly 25 simultaneously.

The utility model discloses in, fixed mounting has collar 23 on the inner wall of spacing pipe 5, and L type pull rod 6 runs through collar 23, and the cover is equipped with compression spring 24 on the L type pull rod 6, and compression spring 24's both ends respectively with collar 23 and the 6 fixed connection of L type pull rod, utilize compression spring 24, can conveniently reset to L type pull rod 6.

The working principle is as follows: when the multifunctional knife is used, the head part of the knife firstly extends into the body of a patient, then the L-shaped pull rod 6 is driven to move through the connecting cover 9 by pulling the connecting rod 11, when the connecting cover 9 moves, the two limiting rods 8 can move, so that the limiting spring 10 can be in a stress state, the two L-shaped pull rods 6 can pull the moving rack 19 to move while moving, so that the rotating cutter 4 can be driven by the rotating gear 22 to rotate, the rotating cutter 4 and the knife head form a shearing force, pathological tissues can be conveniently cut off, when the angle between the handle 1 and the knife rod 2 needs to be adjusted, the clamping rod 25 and the T-shaped rod 12 can be clamped by pushing the clamping rod 25, at the moment, the connecting rod 11 is pulled again, the T-shaped rod 12 can be driven to move while the L-shaped rod 6 is pulled, and the two ball screws 13 can be driven to move when the T-shaped rod 12 moves, when the ball screw 13 moves, because the self-locking property between the ball screw 13 and the ball screw nut 14 is not existed, when the ball screw 13 moves transversely, the ball screw nut 14 can be driven to rotate, so that the torsion spring 15 is in a stressed state, and when the ball screw 13 moves, the arc-shaped rack 16 can be driven to move until the arc-shaped rack 16 is disengaged from the limit gear 18, therefore, the cutter bar 2 can lose the limit, the free rotation can be realized, the angle adjustment with the handle 1 can be conveniently realized, by arranging the connecting cover 9, when a certain angle is formed between the cutter bar 2 and the handle 1, when the connecting cover 9 is driven to move by pulling the connecting rod 11, at the moment, the L-shaped pull rod 6 can move transversely along with the connecting rod 11, and meanwhile, the longitudinal sliding can also occur in the connecting cover 9, cause the structure to contradict when can avoiding appearing the angle change between handle 1 and the cutter arbor 2 with this, and spacing spring 8, torsion spring 15 and compression spring 24's effect all is that the structure in the scheme resets and sets up, so this technical scheme can reach and be convenient for excise pathological change tissue, when using, can not cause the tearing phenomenon of pathological change tissue because the sharpness of tool bit is not enough simultaneously to this danger that can effectually eliminate when doing the operation.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a miniature crochet hook sword, includes handle (1), and handle (1) is hollow structure, and rotates on handle (1) and is connected with cutter arbor (2), and the one end of cutter arbor (2) is equipped with the tool bit, its characterized in that, one side of cutter arbor (2) is equipped with the scale, top one side fixed mounting of cutter arbor (2) has mounting bracket (3), and rotates on mounting bracket (3) and be connected with rotary cutter (4), the opposite side fixed mounting of cutter arbor (2) has spacing pipe (5), sliding connection has L type pull rod (6) in spacing pipe (5), and the both ends of L type pull rod (6) all extend to the outside of spacing pipe (5), the one end and the rotary cutter (4) transmission of L type pull rod (6) are connected, one side fixed mounting of handle (1) has fixed plate (7), symmetrical sliding connection has two gag lever posts (8) on fixed plate (7), and the one end fixedly connected with of two gag lever posts (8) is same connecting cover (9), the one end of L type pull rod (6) extend to in connecting cover (9) and with connecting cover (9) looks adaptation, one side fixed mounting of connecting cover (9) has connecting rod (11).

2. The micro crochet hook knife according to claim 1, characterized in that the limiting rod (8) is sleeved with limiting springs (10), one ends of the two limiting springs (10) are fixedly connected with one side of the fixing plate (7), and the other ends of the two limiting springs (10) are respectively fixedly connected with the other ends of the two limiting rods (8).

3. The micro crochet hook knife according to claim 1, characterized in that one end of the L-shaped pull rod (6) is fixedly provided with a moving rack (19), one side of the mounting rack (3) is fixedly provided with a moving rod (21), the moving rod (21) is slidably provided with a sliding ring (20), one side of the sliding ring (20) is fixedly connected with the moving rack (19), one side of the rotary cutter (4) is fixedly provided with a rotary gear (22), and the rotary gear (22) is meshed with the moving rack (19).

4. The micro crochet hook knife according to claim 1, characterized in that a T-shaped rod (12) is slidably connected inside the handle (1), one end of the T-shaped rod (12) extends to the outside of the handle (1), two ball screws (13) are symmetrically and fixedly installed on one side of the T-shaped rod (12), one end of each ball screw (13) is fixedly installed with a same fixing rod, one end of each fixing rod is fixedly installed with an arc-shaped rack (16), a support rod is fixedly installed inside the handle (1), a mounting hole is formed in the support rod, a connecting shaft (17) is rotatably connected in the mounting hole, a limit gear (18) is fixedly sleeved on the connecting shaft (17), a rotating hole is formed in the handle (1), the other end of the knife bar (2) extends into the handle (1) and is fixedly sleeved on the connecting shaft (17), the limiting gear (18) is movably meshed with the arc-shaped rack (16).

5. The micro crochet hook knife according to claim 1, characterized in that two ball screw nuts (14) are symmetrically and rotatably connected to the inside of the handle (1), a connecting plate is fixedly mounted on the inner wall of the handle (1), two ball screws (13) respectively penetrate through the two ball screw nuts (14) and are respectively in threaded connection with the two ball screw nuts (14), the ball screws (13) penetrate through the connecting plate, a torsion spring (15) is sleeved on the ball screws (13), two ends of the torsion spring (15) are respectively in fixed connection with the ball screw nuts (14) and the connecting plate, a clamping rod (25) is slidably connected to the connecting rod (11), and the clamping rod (25) is movably clamped with one side of the T-shaped rod (12).

6. The micro crochet hook knife according to claim 1, characterized in that the inner wall of the limit pipe (5) is fixedly provided with a mounting ring (23), the L-shaped pull rod (6) penetrates through the mounting ring (23), the L-shaped pull rod (6) is sleeved with a compression spring (24), and two ends of the compression spring (24) are respectively fixedly connected with the mounting ring (23) and the L-shaped pull rod (6).