CN219230018U

CN219230018U - Bone chisel

Info

Publication number: CN219230018U
Application number: CN202223425702.3U
Authority: CN
Inventors: 王若瑜
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-06-23
Anticipated expiration: 2032-12-20

Abstract

The utility model relates to the technical field of osteotomes, in particular to an osteotome, which comprises a chisel head and a chisel body, wherein the chisel body comprises a shell, a connecting sleeve and an inner rod, the connecting sleeve is fixed at the bottom of the shell, the inner rod is slidably connected in the shell and the connecting sleeve and is detachably connected with the shell, the top of the chisel head is fixedly connected with a connecting piece, the connecting piece can be inserted into the bottom of the connecting sleeve to rotate for axial limiting, the connecting piece is slidably connected with the inner rod, and the connecting piece is circumferentially limited after being attached to the inner rod; through quick detach with the chisel head on the chisel body, form a new different osteotome for when equipping this osteotome, need not like in the prior art, every kind of different osteotome all need prepare, only need prepare one chisel body and different chisel head can, reduced the cost of equipping, after the chisel head damages simultaneously, the purchase again is cheaper relatively also a bit, has reduced the replacement cost, has good economic benefits.

Description

Bone chisel

Technical Field

The utility model relates to the technical field of osteotomes, in particular to an osteotome.

Background

An osteotome is a surgical instrument used to repair and chisel bone when performing bone surgery. The bone chisel is divided into a large bone chisel, a small bone chisel, a flat bone chisel (straight and bent), a round bone chisel (straight and bent), a blank chisel and the like, and the main technical indexes are that the cutting edge of the bone chisel should be sharp, and no edge breakage and edge rolling phenomenon exists; the connection part of the osteotome should be firmly fixed and should not be loosened or fallen off during working.

The prior art bone chisel generally comprises chisel head and chisel body, because the chisel head shape that needs is different, needs to equip multiple different bone chisel, use cost is high, when the chisel head damages, also can only whole bone chisel change together, and the replacement cost is high.

The above information disclosed in the background section is only for enhancement of understanding of the background of the disclosure and therefore it may include information that does not form the prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

The utility model aims to design an osteotome which can replace a chisel head, can be quickly disassembled and assembled and is stable and reliable after being installed, so as to solve the defects in the technology.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides an osteotome, includes chisel head and chisel body, chisel body includes shell, adapter sleeve and interior pole, and the adapter sleeve is fixed in the shell bottom, interior pole sliding connection in shell and adapter sleeve and can dismantle with the shell and be connected, chisel head top fixedly connected with connecting piece, the connecting piece can insert the rotatory axial spacing that carries out in adapter sleeve bottom, connecting piece and interior pole sliding connection carry out the spacing of circumference to the connecting piece after connecting piece and the laminating of interior pole.

Preferably, the inner rod is arranged in a semi-cylindrical shape, the top of the inner rod is fixedly connected with a locating plate, counter sunk holes are formed in the tops of the locating plate and the shell, and bolts are connected with the internal threads of the counter sunk holes.

Preferably, after the bolt is screwed into the counter bore, the top surface of the bolt is positioned in the counter bore.

Preferably, the connecting sleeve comprises a circular ring and a semicircular sheet, the circular ring is fixedly connected with the semicircular sheet, the bottom end of the circular ring is fixedly connected with the bottom end of the shell, and after the positioning sheet is attached to the top of the shell, the bottom end of the inner rod is attached to the semicircular sheet.

Preferably, the connecting piece includes first post and semicylindrical second post, first post and chisel head fixed connection, second post fixed connection is in first post top, and the diameter of first post is the same with the internal diameter of semicircle circular arc piece, and the diameter of second post is the same with the internal diameter of ring.

In the technical scheme, the utility model has the technical effects and advantages that:

1. by quickly disassembling and assembling the chisel heads on the chisel body, a new different osteotome is formed, so that when the osteotome is equipped, each different osteotome is not required to be prepared as in the prior art, only one chisel body and different chisel heads are required to be prepared, the cost of the equipment is reduced, and meanwhile, after the chisel heads are damaged, the chisel heads are relatively cheap to purchase again, the replacement cost is reduced, and good economic benefits are realized;

2. through the cooperation between ring, first post, second post and the shell for the chisel head carries out the axial spacing with the chisel body, through the cooperation between interior pole, shell and the second post, makes chisel head and chisel body carry out the spacing of circumference, thereby makes the chisel head install after chisel body inside, has stability, can not cause the loosening of chisel head when the chisel body is beaten, has improved the stability after the installation.

Drawings

For a clearer description of embodiments of the present application or of the solutions in the prior art, the drawings that are needed in the embodiments will be briefly described, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and that other drawings can be obtained according to these drawings by a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a perspective view of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model;

FIG. 4 is a split first view of the present utility model;

fig. 5 is a split second view of the present utility model.

Reference numerals illustrate:

1. a chisel head; 2. chiseling; 3. a housing; 4. connecting sleeves; 4.1, a circular ring; 4.2, semicircular arc pieces; 5. an inner rod; 6. a connecting piece; 6.1, a first column; 6.2, a second column; 7. a positioning sheet; 8. a countersunk hole; 9. and (5) a bolt.

Detailed Description

In order to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

Examples:

as shown in fig. 1-5, the chisel comprises a chisel head 1 and a chisel body 2, the chisel body 2 comprises a housing 3, a circular ring 4.1, a semicircular arc piece 4.2 and an inner rod 5, the circular ring 4.1 is fixedly connected with the bottom end of the housing 3, the circular ring 4.1 is fixedly connected with the semicircular arc piece 4.2, the inner rod 5 is slidably connected in the housing 3 and a connecting sleeve 4, the inner rod 5 is arranged into a semi-cylindrical shape, a positioning piece 7 is fixedly connected to the top of the inner rod 5, a countersink 8 is formed in the top of the positioning piece 7 and the top of the housing 3, a bolt 9 is connected with internal threads of the countersink 8, a semi-cylindrical first column 6.1 is fixedly connected to the top of the chisel head 1, a cylindrical second column 6.2 is fixedly connected to the top of the first column 6.1 and is rotatably connected with the semicircular arc piece 4.2, and the second column 6.2 is rotatably connected with the inside of the circular ring 4.1, and after the positioning piece 7 is attached to the top of the housing 3, the bottom end of the inner rod 5 is attached to the semicircular arc piece 4.2.

Preferably, after the bolt 9 is screwed into the counter bore 8, the top surface of the bolt 9 is positioned in the counter bore 8; the bolt 9 is positioned in the counter bore 8, so that the bolt 9 is prevented from being knocked when the positioning sheet 7 is knocked.

The implementation mode specifically comprises the following steps: when replacing the chisel 1, a user removes the bolt 9 from the countersink 8, pulls the positioning piece 7, so as to move the inner rod 5 from the circular ring 4.1 into the shell 3, then rotates the chisel 1, and drives the first column 6.1 and the second column 6.2 to rotate by the chisel 1, so that the second column 6.2 is positioned at the original position of the inner rod 5, and then pulls the second column 6.2 out of the circular ring 4.1, thereby completing the disassembly of the chisel 1; then the second cylinder on the new chisel 1 is inserted into the circular ring 4.1 to rotate, so that the chisel 1 is limited in the axial direction, then the inner rod 5 is pushed to be inserted into the circular ring 4.1 to be attached to the second cylinder 6.2, so that the chisel 1 is limited in the circumferential direction, and then the bolt 9 is screwed into the countersunk bolt 9, so that the chisel 1 is replaced.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

the previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. An osteotome comprising a chisel head (1) and a chisel body (2), characterized in that: chisel body (2) include shell (3), adapter sleeve (4) and interior pole (5), and adapter sleeve (4) are fixed in shell (3) bottom, and interior pole (5) sliding connection can dismantle with shell (3) in shell (3) and adapter sleeve (4), chisel head (1) top fixedly connected with connecting piece (6), connecting piece (6) can insert that adapter sleeve (4) bottom is rotatory carries out axial spacing, connecting piece (6) and interior pole (5) sliding connection carry out circumferential spacing to connecting piece (6) after connecting piece (6) are laminated with interior pole (5).

2. An osteotome according to claim 1, wherein: the inner rod (5) is arranged to be semi-cylindrical, the top of the inner rod (5) is fixedly connected with a locating plate (7), counter sunk holes (8) are formed in the tops of the locating plate (7) and the shell (3), and bolts (9) are connected with the internal threads of the counter sunk holes (8).

3. An osteotome according to claim 2, wherein: after the bolt (9) is screwed into the counter bore (8), the top surface of the bolt (9) is positioned in the counter bore (8).

4. An osteotome according to claim 2, wherein: the connecting sleeve (4) comprises a circular ring (4.1) and a semicircular arc piece (4.2), the circular ring (4.1) is fixedly connected with the bottom end of the shell (3), the circular ring (4.1) is fixedly connected with the semicircular arc piece (4.2), and after the locating piece (7) is attached to the top of the shell (3), the bottom end of the inner rod (5) is attached to the semicircular arc piece (4.2).

5. An osteotome according to claim 4, wherein: the connecting piece (6) comprises a first column (6.1) and a semi-cylindrical second column (6.2), wherein the first column (6.1) is fixedly connected with the chisel head (1), the second column (6.2) is fixedly connected to the top end of the first column (6.1), the diameter of the first column (6.1) is identical to the inner diameter of the semicircular arc piece (4.2), and the diameter of the second column (6.2) is identical to the inner diameter of the circular ring (4.1).