CN210095841U

CN210095841U - Joint shaping chisel for orthopedic surgery

Info

Publication number: CN210095841U
Application number: CN201920463915.4U
Authority: CN
Inventors: 李伟; 岑晓霞; 刘志勇; 刘冰洋; 裘年存; 王斌; 查斯洛; 李冬
Original assignee: Shanghai Changzheng Hospital
Current assignee: Shanghai Changzheng Hospital
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2020-02-21
Anticipated expiration: 2029-04-08

Abstract

The utility model discloses a joint shaping chisel for bone surgery, including last hammer block, shock attenuation elastic block, supplementary handle, chisel handle, spliced pole, connection notch, chisel head, gim peg, connector, chisel head connecting block and vibration-damping rubber pad. The utility model has the advantages that: shock attenuation elastic block reduces the hammer vibrations to this chisel when the hammering, prolong its life, prevent simultaneously that hard too violently causes the damage of chisel head, supplementary handle prevents to be sheltered from the sight by hand chisel handle in operation process, prevent the small error of recovery in-process, the elastic bolt reduces the vibrations of spliced pole in the use, facilitate the connection, the change of chisel head connecting block convenience chisel head, the cost is saved, make things convenient for the disinfection before the use and the washing and the maintenance after using of chisel head, the noise that the shock pad reduction produced when knocking, make the environment of knocking and feel more man-machine, and guarantee the compactness of shock pad and last hammer block.

Description

Joint shaping chisel for orthopedic surgery

Technical Field

The utility model relates to a joint shaping chisel specifically is a joint shaping chisel for bone surgery, belongs to medical instrument technical field.

Background

Joint shaping chisel is the operation medical instrument commonly used in the long clinical practice of orthopedics, the joint shaping chisel that uses clinically at present designs as an organic whole usually, chisel body and chisel head integrated into one piece, use chisel head cutting bone tissue in the middle of using, because there is certain skew in bone tissue's position, if the osteotome is crooked the effect can be better, and current osteotome mainly is the integral type design, and mainly become the linear type, it is inconvenient to use under some circumstances, and supplementary joint shaping chisel needs to change the model of using according to the joint of difference, it is comparatively troublesome.

At present, although the joint shaping chisel is popularized in application, the joint shaping chisel for the orthopedic surgery still has some problems, firstly, the existing joint shaping chisel for the orthopedic surgery is easy to be shielded by hands when adjusting angles, and small errors are caused, secondly, the existing joint shaping chisel for the orthopedic surgery often generates vibration when adjusting bone tissues, certain influence can be caused on the surgery and recovery, thirdly, the existing joint shaping chisel for the orthopedic surgery generates noise in the process of slow knocking, and the mood of operators is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a joint shaping chisel for orthopedic surgery.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a joint shaping chisel for orthopedic surgery comprises an upper hammer plate, a shock absorption elastic block, an auxiliary grip, a chisel handle, a connecting column, a connecting notch, a chisel head, an elastic bolt, a connector, a chisel head connecting block and a shock absorption rubber pad; the upper hammer plate is circular and is fixed above the shock-absorbing elastic block in a welded mode, the shock-absorbing elastic block is in a round-table-shaped cavity structure and is connected between the upper hammer plate and the chisel handle, the auxiliary handle is in a solid cylindrical structure and is installed on the side face of the chisel handle, the chisel handle is in a cylindrical structure and is installed below the shock-absorbing elastic block, the connecting column is in a solid cylindrical position below the chisel handle, the connecting notch is in a hollow round-table-shaped built-in thread and is located below the connecting column, the chisel head is rotatably connected below the connecting notch, the elastic bolt is arranged inside the connecting head, a plurality of regular threads are arranged on the outer side of the connecting head and is located above the connecting column, the chisel head connecting block is fixed above the chisel head in a welded mode, and the shock-absorbing rubber pad is in a circular shape.

Preferably, in order to reduce the vibration of the hammer to the chisel when hammering, prolong the service life of the hammer and prevent the chisel head from being damaged due to over-force, the damping elastic block is externally made of stainless steel, and the inner side of the damping elastic block is filled with a damping sponge.

Preferably, in order to prevent the hand-held chisel handle from blocking the sight during the operation and prevent a slight error during the recovery process, the auxiliary grip is fixed on the side surface of the chisel handle in a welding manner, and the tail end of the auxiliary grip is provided with a plurality of protruding points with the same size.

Preferably, in order to protect the connecting column, reduce the vibration of the connecting column in the use process and facilitate connection, the whole height of the elastic bolt is higher than that of the connecting head, and the upper surface of the elastic bolt is in contact with the inner surface of the lower fixing groove of the chisel handle.

Preferably, in order to facilitate the replacement of the chisel head, save the cost and facilitate the disinfection of the chisel head before use and the cleaning and maintenance after use, the chisel head connecting block and the chisel head are in welded rigid connection and integrally formed, and the chisel head connecting block and the chisel head are in meshed connection with the internal thread of the connecting notch.

Preferably, in order to reduce noise generated during knocking, the knocking environment and the hand feeling are more man-machine, and the tightness between the shock-absorbing rubber pad and the upper hammer plate is ensured, the shock-absorbing rubber pad is adhered to the upper surface of the upper hammer plate through glue, and the area of the lower surface of the shock-absorbing rubber pad is equal to that of the upper surface of the upper hammer plate.

The utility model has the advantages that: the joint forming chisel for orthopedic surgery is reasonable in design, the damping elastic block is externally made of stainless steel, the inner side of the damping elastic block is filled with damping sponge, vibration of a hammer to the chisel during hammering is reduced, the service life of the damping elastic block is prolonged, damage to a chisel head caused by overexertion is prevented, the auxiliary handle is fixed on the side face of the chisel handle in a welding mode, the tail end of the auxiliary handle is provided with a plurality of convex points with the same size, sight line shielding by holding the chisel handle during operation is prevented, small errors in the recovery process are prevented, the whole height of the elastic bolt is higher than that of the connector, the upper surface of the elastic bolt is in contact with the inner surface of a lower fixing groove of the chisel handle, a connecting column is protected, vibration of the connecting column in the using process is reduced, connection is facilitated, a chisel head connecting block is in welding type rigid connection with the chisel head, integrated forming is realized, the elastic, practice thrift the cost, make things convenient for disinfection before the chisel head uses and the washing and the maintenance after using, the shock-absorbing rubber pad passes through glue and bonds at last hammer block upper surface, and its lower surface area equals with last hammer block upper surface area, reduces the noise that produces when strikeing, makes the environment of strikeing and feels more man-machine, and guarantees the compactness of shock-absorbing rubber pad and last hammer block.

Drawings

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

FIG. 2 is a schematic view of the chisel head connecting block of the present invention;

fig. 3 is a schematic view of the shock-absorbing rubber pad with the structure of the present invention.

In the figure: 1. the shock-absorbing rubber block comprises an upper hammer plate, 2, a shock-absorbing elastic block, 3, an auxiliary handle, 4, a chisel handle, 5, a connecting column, 6, a connecting notch, 7, a chisel head, 8, an elastic bolt, 9, a connector, 10, chisel head connecting blocks and 11 and a shock-absorbing rubber pad.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, a joint shaping chisel for orthopedic surgery comprises an upper hammer plate 1, a shock absorption elastic block 2, an auxiliary grip 3, a chisel handle 4, a connecting column 5, a connecting notch 6, a chisel head 7, an elastic bolt 8, a connector 9, a chisel head connecting block 10 and a shock absorption rubber pad 11; the upper hammer plate 1 is fixed above the shock absorption elastic block 2 in a circular shape in a welding mode, the shock absorption elastic block 2 is connected between the upper hammer plate 1 and the chisel handle 4 in a circular truncated cone-shaped cavity structure, the auxiliary grip 3 is arranged on the side surface of the chisel handle 4 in a solid cylindrical structure, the chisel handle 4 is arranged below the shock absorption elastic block 2 in a cylindrical structure, the connecting column 5 is in a solid cylinder shape and is positioned below the chisel handle 4, the connecting notch 6 is in a hollow round table shape and is internally provided with threads, and is positioned below the connecting column 5, the chisel head 7 is rotatably connected below the connecting notch 6, the elastic bolt 8 is arranged inside the connector 9, a plurality of regular threads are arranged on the outer side of the connector 9, and is located spliced pole 5 top, chisel head connecting block 10 is fixed in the top of chisel head 7 through the welded form, and rubber cushion 11 is fixed on the upper surface of last hammer block 1 for circular form.

The shock attenuation elastic block 2 outside comprises stainless steel material, and its inboard packing has buffering shock attenuation sponge, reduces the hammer to the vibrations of this chisel when the hammering, prolongs its life, prevents to exert oneself too hard to cause the damage of chisel head 7 simultaneously, supplementary handle 3 is fixed in the side of chisel handle 4 through the welded mode, and its end is equipped with the bump that a plurality of sizes are the same, prevents to be sheltered from the sight by hand-held chisel handle 4 in the operation process, prevents the small error in the recovery process, its whole height of elastic bolt 8 is higher than connector 9, and its upper surface contacts with fixed slot internal surface under the chisel handle 4, protects spliced pole 5, reduces the vibrations of spliced pole 5 in the use, and convenient the connection, chisel head connecting block 10 is welded type rigid connection with chisel head 7, the integrated shaping, and it is inseparable with the inside thread engagement of connecting notch 6, makes things convenient for the change of chisel head 7, practice thrift the cost, make things convenient for the disinfection of chisel head 7 before the use and the washing and the maintenance after the use, damping rubber pad 11 bonds at last hammer block 1 upper surface through glue, and its lower surface area equals with last hammer block 1 upper surface area, reduces the noise that produces when knocking, makes the environment of knocking and feels more man-machine, and guarantees damping rubber pad 11 and the compactness of last hammer block 1.

The working principle is as follows: when using this a joint shaping chisel for bone surgery, at first disinfect each part earlier, then come the angle and the position of rotary adjustment auxiliary handle 3 according to operating personnel's in service behavior, after adjusting the position, hammer block 1 on hammering with special medical hammer, at this moment, 2 vibrations that reduce this chisel and cause bone tissue in the use, prevent simultaneously that hard too violently leads to the fact the damage of chisel head 7, chisel head connecting block 10 makes things convenient for the change of chisel head 7, save cost, make things convenient for the disinfection of chisel head 7 before the use and the washing and the maintenance after the use, damping rubber pad 11 reduces the noise that produces when knocking, make the environment of knocking and feel more man-machine, and guarantee damping rubber pad 11 and hammer block 1's compactness.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A joint shaping chisel for bone surgery, its characterized in that: the shock-absorbing rubber block comprises an upper hammer plate (1), a shock-absorbing elastic block (2), an auxiliary handle (3), a chisel handle (4), a connecting column (5), a connecting notch (6), a chisel head (7), an elastic bolt (8), a connector (9), a chisel head connecting block (10) and a shock-absorbing rubber pad (11); the upper hammer plate (1) is fixed above the shock-absorbing elastic block (2) in a circular shape in a welding mode, the shock-absorbing elastic block (2) is connected between the upper hammer plate (1) and the chisel handle (4) in a circular-table-shaped cavity structure, the auxiliary handle (3) is installed on the side face of the chisel handle (4) in a solid-cylindrical-shaped structure, the chisel handle (4) is installed below the shock-absorbing elastic block (2) in a cylindrical-shaped structure, the connecting column (5) is located below the chisel handle (4) in a solid-cylindrical shape, the connecting notch (6) is provided with a hollow circular-table-shaped built-in thread and is located below the connecting column (5), the chisel head (7) is rotatably connected below the connecting notch (6), the elastic bolt (8) is installed inside the connecting head (9), a plurality of regular connecting head threads are arranged on the outer side of the connecting head (9) and are located above the connecting column (5, the chisel head connecting block (10) is fixed above the chisel head (7) in a welding mode, and the shock-absorbing rubber pad (11) is fixed on the upper surface of the upper hammer plate (1) in a circular shape.

2. The arthroplasty chisel for use in orthopaedic surgery of claim 1, wherein: the outer part of the shock absorption elastic block (2) is made of stainless steel materials, and the inner side of the shock absorption elastic block is filled with a shock absorption sponge.

3. The arthroplasty chisel for use in orthopaedic surgery of claim 1, wherein: the auxiliary grip (3) is fixed on the side surface of the chisel handle (4) in a welding mode, and the tail end of the auxiliary grip is provided with a plurality of salient points with the same size.

4. The arthroplasty chisel for use in orthopaedic surgery of claim 1, wherein: the whole height of the elastic bolt (8) is higher than that of the connector (9), and the upper surface of the elastic bolt is in contact with the inner surface of the lower fixing groove of the chisel handle (4).

5. The arthroplasty chisel for use in orthopaedic surgery of claim 1, wherein: the chisel head connecting block (10) is in welding type rigid connection with the chisel head (7) and is in meshed connection with the internal thread of the connecting notch (6).

6. The arthroplasty chisel for use in orthopaedic surgery of claim 1, wherein: the damping rubber pad (11) is adhered to the upper surface of the upper hammer plate (1) through glue, and the area of the lower surface of the damping rubber pad is equal to that of the upper surface of the upper hammer plate (1).