CN216962602U

CN216962602U - Nail extractor

Info

Publication number: CN216962602U
Application number: CN202122819742.5U
Authority: CN
Inventors: 康立新; 丁建建; 李海军; 魏莹; 王丽; 李凡彬; 李秉政
Original assignee: Shandong Liangyi Medical Instrument Co ltd
Current assignee: Shandong Liangyi Medical Instrument Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-07-15
Anticipated expiration: 2031-11-17

Abstract

The utility model discloses a nail extractor, which relates to the technical field of medical instruments and comprises a left handle, a fixed seat and a nail containing block, wherein a first nail hole is formed in the top of the nail containing block, a first hinge point is formed at one end of the fixed seat, and a sliding groove is formed in the other end of the fixed seat; the top of the right handle is provided with a fourth hinge point and a fifth hinge point; the front end of the locking block is arranged at the first nail hole, and a second hinge point and a third hinge point are arranged on the locking block; the sliding seat is arranged below the fixed seat, and a sixth hinge point is arranged on the sliding seat; a connecting rod is arranged between the third hinge point and the fourth hinge point. The fixing nail is locked by the locking block, the fixing nail is withdrawn by utilizing the principle of the four-bar mechanism, a user can pull out the fixing nail along the linear direction without additional rotation or shaking, secondary damage to an affected part is avoided, the fixing nail can still be held after being pulled out, energy and physical power of the user are saved, and surgical accidents are reduced.

Description

Nail extractor

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a nail extractor.

Background

The existing nail extractor is clamped in a clamp type encircling mode, then reverse extraction force is applied by an operator, so that the operator needs to pull out the fixing nail vigorously, the fixing nail is usually pulled out difficultly in a short time due to the fact that the fixing nail is too firm, the operator needs to rotate and shake to withdraw the fixing nail, a drilling hole needing to be reserved on a bone is damaged, a fixing nail hole cannot be used due to expansion, even a bone block is fractured, secondary damage to a patient is caused, the operation process is influenced, in addition, the existing nail extractor needs the operator to continuously supply holding force, the operator easily holds the nail extractor due to fatigue relaxation after the nail is pulled out vigorously, the nail extractor clamps the fixing nail inefficiently, and the fixing nail falls off, causing surgical accidents.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a nail extractor which can realize linear nail pulling, is labor-saving, convenient and fast and is stable in clamping.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a nail extractor, including the left handle, a fixed base, hold the nail piece, the right side handle, latch segment and slide, the left side handle, the fixing base with hold nail piece an organic whole and set up, the upper portion of left side handle is connected with the fixing base through holding the nail piece, it is provided with first nail hole on the nail piece to hold, fixing base one end is provided with first pin joint, and its other end is provided with the spout, right side handle top is provided with fourth pin joint and fifth pin joint, the latch segment front end sets up in first pin joint department, be provided with second pin joint and third pin joint on the latch segment, the slide sets up in the fixing base below, be provided with the sixth pin joint on the slide, first pin joint and second pin joint are articulated, fifth pin joint and sixth pin joint are articulated through the pivot, the pivot slides and sets up in the spout, be provided with the connecting rod between third pin joint and the fourth pin joint.

Preferably, the carriage is provided with an insert at a position horizontal to the sixth hinge point.

Preferably, the nail extractor further comprises a U-shaped nail pushing baffle which is clamped on two sides of the nail accommodating block, a second nail hole corresponding to the first nail hole is formed in the top end of the nail pushing baffle, a slot is formed in the bottom end of the nail pushing baffle, and the slot is detachably arranged on the inserting block.

Preferably, the front end of the locking block is provided with a groove.

Preferably, a cavity is arranged in the nail pushing baffle, a spring is arranged in the cavity, the upper end of the spring is tightly propped against the nail pushing baffle, and the lower end of the spring is tightly propped against the sliding seat.

Preferably, the sliding seat is provided with a positioning column, and the lower end of the spring is sleeved on the positioning column.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, through the mutually hinged locking block, the left handle, the right handle and the connecting rod, a user holds the left handle and the right handle, the locking block is tightly combined and locked with the fixing nail, the fixing nail is withdrawn by utilizing the principle of the four-bar mechanism, so that the user can pull out the fixing nail along the linear direction without adding extra rotation or shaking under the condition of providing smaller holding power, secondary damage to an affected part is avoided, the holding effect on the fixing nail can be still kept after pulling out, the accident that the fixing nail is easy to fall off after the original nail extractor is pulled out is avoided, the operation time is greatly saved, the energy and the physical strength of the user are saved, and the occurrence of operation accidents is reduced.

Drawings

FIG. 1 is a schematic front exploded view of the present invention;

FIG. 2 is a schematic perspective exploded view of the present invention;

FIG. 3 is a schematic front view of the present invention;

fig. 4 is a left-side perspective view of the present invention.

In the figure: 1. a left handle; 2. a fixed seat; 21. a first hinge point; 22. a chute; 3. a nail accommodating block; 31. a first nail hole; 4. pushing the nail baffle plate; 41. a slot; 42. a second nail hole; 5. a locking block; 51. a second hinge point; 52. a third hinge point; 6. a connecting rod; 7. a right handle; 71. a fourth hinge point; 72. a fifth hinge point; 8. a spring; 9. a slide base; 91. a sixth hinge point; 92. a positioning column; 93. inserting a block; 10. a rotating shaft; 11. and (5) fixing the nail.

Detailed Description

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

Referring to fig. 1-4, a nail extractor comprises a left handle 1, a fixed seat 2, a nail containing block 3, a locking block 5, a sliding seat 9 and a right handle 7, wherein the left handle 1, the fixed seat 2 and the nail containing block 3 are integrally processed, the nail containing block 3 is positioned between the left handle 1 and the fixed seat 2, a first nail hole 31 is processed at the top of the nail containing block 3 and is used for facilitating the insertion of a fixing nail 11 into the nail containing block 3, a first hinge point 21 is processed at one end of the fixed seat 2, a sliding groove 22 is processed at the other end of the fixed seat 2, the front end of the locking block 5 is inserted into the first nail hole 31, a groove is processed at the front end of the locking block 5 and is used for increasing the contact area between the locking block 5 and the fixing nail 11 and improving the clamping effect of the locking block 5 on the fixing nail 11, a second hinge point 51 and a third hinge point 52 are processed on the locking block 5, the sliding seat 9 is installed below the fixed seat 2, a sixth hinge point 91 is processed on the sliding seat 9, an insert block 93 is processed on the position of the sliding seat 9 horizontal to the sixth hinge point 91, a fourth hinge point 71 and a fifth hinge point 72 are processed on the top of the right handle 7, the first hinge point 21 and the second hinge point 51 are hinged through a pin shaft, a connecting rod 6 is connected between the third hinge point 52 and the fourth hinge point 71, one end of the connecting rod 6 is hinged through the pin shaft and the third hinge point 52, the other end of the connecting rod 6 is hinged through the pin shaft and the fourth hinge point 71, the fifth hinge point 72 and the sixth hinge point 91 are hinged in the sliding groove 22 through a rotating shaft 10, namely, the rotating shaft 10 can slide in the sliding groove 22, a cavity is processed inside the fixed seat 2, a spring 8 is installed in the cavity, the upper end of the spring 8 is tightly pressed against the fixed seat 2, the lower end of the spring 8 is tightly pressed against the sliding seat 9, a positioning column 92 is processed on the sliding seat 9, the lower end of the spring 8 is sleeved on the positioning column 92, and the spring 8 is limited by the positioning column 92, prevent that spring 8 from taking place the offset in compression process, utilize the elasticity that spring 8 compression produced to promote slide 9 and slide along spout 22, and then drive latch segment 5 through mutual articulated right handle 7 and connecting rod 6 and loosen the clamp to staple 11, convenience of customers continues to exert oneself again and pulls out the operation with staple 11 or loosen the staple 11 of pulling out and take out from first nail hole 31, install staple pushing baffle 4 in the outside of holding staple block 3, the top of staple pushing baffle 4 is processed there is second nail hole 42, second nail hole 42 and first nail hole 31 are with the axle center processing, be convenient for staple 11 to pass second nail hole 42 and insert in first nail hole 31, the bottom processing of staple pushing baffle 4 has slot 41, slot 41 lower extreme opening, slot 41 can insert on inserted block 93.

When the nail pulling device is used, the left handle 1 and the right handle 7 are in an opening state under the elastic force action of the spring 8, the front end of the locking block 5 is separated from the first nail hole 31 under the action of the connecting rod 6, the rotating shaft 10 is positioned at the bottom of the sliding groove 22 at the moment, the fixing nail 11 is inserted into the nail containing block 3 through the second nail hole 42 and the first nail hole 31, a user applies force to pinch the left handle 1 and the right handle 7, the right handle 7 rotates around the fifth hinge point 72, the locking block 5 is driven to rotate around the second hinge point 51 through the connecting rod 6, the locking block 5 clamps the fixing nail 11, the user continues applying force, the integrally processed left handle 1, the nail containing block 3 and the fixing seat 2 linearly move for a certain distance relative to the sliding seat 9 until the rotating shaft 10 abuts against the upper part of the sliding groove 22, due to the clamping action of the locking block 5 on the fixing nail 11, the fixing nail 11 moves along with the nail containing block 3 to realize the pulling of the fixing nail 11, and the pulled out fixing nail 11 is still clamped by the locking block 5, the fixing nail 11 is prevented from falling off, after the fixing nail 11 is pulled out, a user loosens the holding of the left handle 1 and the right handle 7, the sliding seat 9 is driven by the elastic force of the spring 8 to reset, the rotating shaft 10 slides to the bottom of the sliding groove 22 again, the locking block 5 loosens the clamping of the fixing nail 11, and then the fixing nail 11 can be taken out of the nail removing block 3, and one-time nail pulling operation is completed.

It should be noted that the spring 8 and the pin are used in the prior art in the embodiment of the present invention.

In the description of this patent, it is to be understood that the terms "upper," "lower," "inner," "outer," "center," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the patent.

In this patent, unless expressly stated or limited otherwise, the terms "combined," "disposed," "connected," "secured," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, releasably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate, or they may be connected internally or in an interactive relationship with each other, and unless otherwise specifically limited, the specific meaning of the above terms in this patent will be understood by those skilled in the art according to the specific circumstances.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. The utility model provides a get nail ware which characterized in that: the nail-holding device comprises a left handle (1), a fixed seat (2), a nail-holding block (3), a right handle (7), a locking block (5) and a sliding seat (9), wherein the left handle (1), the fixed seat (2) and the nail-holding block (3) are integrally arranged, the upper part of the left handle (1) is connected with the fixed seat (2) through the nail-holding block (3), a first nail hole (31) is formed in the nail-holding block (3), one end of the fixed seat (2) is provided with a first hinge point (21), the other end of the fixed seat is provided with a sliding groove (22), a fourth hinge point (71) and a fifth hinge point (72) are arranged at the top of the right handle (7), the front end of the locking block (5) is arranged at the first nail hole (31), a second hinge point (51) and a third hinge point (52) are arranged on the locking block (5), the sliding seat (9) is arranged below the fixed seat (2), and a sixth hinge point (91) is arranged on the sliding seat (9), the first hinge point (21) is hinged to the second hinge point (51), the fifth hinge point (72) is hinged to the sixth hinge point (91) through a rotating shaft (10), the rotating shaft (10) is arranged in the sliding groove (22) in a sliding mode, and a connecting rod (6) is arranged between the third hinge point (52) and the fourth hinge point (71).

2. The nail extractor of claim 1, wherein: an insertion block (93) is arranged on the sliding seat (9) at a position horizontal to the sixth hinge point (91).

3. The nail extractor of claim 2, wherein: still include nail baffle (4) that pushes away of U-shaped, push away nail baffle (4) card and establish in the both sides of holding nail piece (3), the top that pushes away nail baffle (4) is provided with second nail hole (42) corresponding with first nail hole (31), and the bottom that pushes away nail baffle (4) is provided with slot (41), slot (41) can be dismantled the setting and be in on inserted block (93).

4. The nail extractor of claim 3, wherein: the front end of the locking block (5) is provided with a groove.

5. The nail extractor of claim 4, wherein: a cavity is arranged in the fixing seat (2), a spring (8) is arranged in the cavity, the upper end of the spring (8) is tightly pressed on the fixing seat (2), and the lower end of the spring (8) is tightly pressed on the sliding seat (9).

6. The nail extractor of claim 5, wherein: a positioning column (92) is arranged on the sliding seat (9), and the lower end of the spring (8) is sleeved on the positioning column (92).