CN213606671U

CN213606671U - Medical assembled groove type osteotome

Info

Publication number: CN213606671U
Application number: CN202021773310.4U
Authority: CN
Inventors: 胡继超
Original assignee: Zhejiang rongjun hospital
Current assignee: Zhejiang rongjun hospital
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-07-06
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a medical matched stack type groove type osteotome, which comprises an osteotome groove box, wherein the osteotome groove box comprises a bottom plate and osteotomes, an extending hole is arranged on the bottom plate, the osteotomes are fixedly arranged on the bottom plate, the osteotomes are arranged around the extending hole, and the osteotomes enclose a bone block accommodating cavity with a closed peripheral surface; the handle is fixedly arranged at one end, far away from the osteotome, of the bottom plate, a cavity is arranged in the handle, the cavity is arranged along the axial direction of the handle and is communicated with the extending hole, an open slot is arranged at one side of the handle and is communicated with the cavity; the push rod is movably arranged in the cavity, a radial protruding portion is arranged on one side of the push rod, and the radial protruding portion extends out of the open slot. By adopting the structure, the bone block can be cut off by only one knife, the structure is simple and convenient, and the bone block can be obtained by knocking the radial protruding part, so that the bone block is convenient to obtain.

Description

Medical assembled groove type osteotome

Technical Field

The utility model relates to the technical field of medical tools, in particular to a medical matched stack type groove type osteotome.

Background

In actual work, bone grafting operation is needed for filling bone defects, and ilium is a common supply area. The existing bone harvesting technology is to cut and harvest bone substances by using a flat osteotome, and when in operation, the operation is completed by chiseling three to four osteotomes according to the requirement of a receiving area, so that the operation is inconvenient. The chiseled bone pieces, which do not match the shape of the recipient area, may still need to be trimmed or reduced before implantation. The requirement on the stability of the operation of an operator is high, the bone taking time is long, and much bleeding occurs. The patent document with the application number of CN201910088565.2 discloses a V-shaped osteotome device, which comprises a striking handle and an osteotome bar, wherein one end of a transition section is connected with an osteotome body, and the other end of the transition section is connected with the osteotome bar; the osteotome body is provided with a concave hyperboloid, and the osteotome is in a V-shaped shape. By adopting the structure, the joint surface at the fracture end is fully exposed, and the reduction of the joint surface is prevented from being influenced by the shielding of bone tissues; the fracture is fixed in the reduction under direct vision, and the operation becomes easy; compared with a transverse osteotomy, the V-shaped osteotomy increases the contact area of the osteotomy end, ensures stable fracture of the osteotomy, ensures that the osteotomy surface can be in close contact, and also prevents the possibility of rotation of the osteotomy end; the soft tissue poking during the operation is reduced, and the muscle damage is reduced, so that the bleeding and postoperative adhesion are reduced; the proximal end of the osteotomy is a cancellous bone part, rich muscle attachment is achieved, the tension band is combined for fixation, the dynamic pressurization effect is achieved on the osteotomy surface, and the osteotomy end can be healed more conveniently. However, the bone block can be chiseled by adopting the structure only by at least two cutters, which is not simple and convenient enough, and the bone block is not easy to take out.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the present invention provides a medical assembled slotted osteotome, comprising an osteotome slot box, wherein the osteotome slot box comprises a bottom plate and an osteotome, an extending hole is formed on the bottom plate, the osteotome is fixedly arranged on the bottom plate, the osteotome is arranged around the extending hole, and the osteotome encloses a bone block accommodating cavity with a closed peripheral surface; the handle is fixedly arranged at one end, far away from the osteotome, of the bottom plate, a cavity is arranged in the handle, the cavity is arranged along the axial direction of the handle and is communicated with the extending hole, an open slot is arranged at one side of the handle and is communicated with the cavity; the push rod is movably arranged in the cavity, a radial protruding portion is arranged on one side of the push rod, and the radial protruding portion extends out of the open slot.

On the basis of the above scheme and as a preferable scheme of the scheme: one end of the handle, which is far away from the bottom plate, is provided with a nail cap.

On the basis of the above scheme and as a preferable scheme of the scheme: the axis of the nail cap is coaxial with the axis of the handle, and the diameter of the nail cap is larger than the outer diameter of the handle.

On the basis of the above scheme and as a preferable scheme of the scheme: the handle is in threaded connection with the bottom plate through the extending hole.

On the basis of the above scheme and as a preferable scheme of the scheme: the number of the scalpels is four, and the shape of the bone block accommodating cavity is quadrilateral.

On the basis of the above scheme and as a preferable scheme of the scheme: the cavity is cylindrical in shape.

On the basis of the above scheme and as a preferable scheme of the scheme: the axis of the cavity is coaxial with the axis of the extending hole.

The utility model discloses compare prior art protrusion and profitable technological effect and be:

1. the osteotome surrounds the extension hole, and the osteotome surrounds the bone block accommodating cavity with the circumferential surface closed, so that the bone block can be cut by only one osteotome, and the osteotome is convenient and quick and has short operation time.

2. The handle is characterized in that a cavity is arranged in the handle, the cavity is arranged along the axial direction of the handle and is communicated with the extending hole, an open slot is formed in one side of the handle and is communicated with the cavity, a push rod is movably arranged in the cavity, a radial protruding portion is arranged on one side of the push rod, and the radial protruding portion extends out of the open slot. When taking out the bone piece, only need strike radial protrusion for it moves to bone piece direction along the opening direction, can hold the intracavity with the bone piece from the bone piece and take out convenient and fast.

3. The handle is kept away from the one end of bottom plate is equipped with the nail cap, has increased the area of knocking when getting the bone, is convenient for get the bone.

4. The handle with bottom plate threaded connection, the split type design of handle and bottom plate can be with the cooperation of the bottom plate of unidimensional not by same handle for get the bone piece of different specifications.

Drawings

Fig. 1 is a schematic structural view of a medical assembled slot osteotome of the present invention;

fig. 2 is a schematic view of the sectional structure of the assembled slot osteotome of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in fig. 1, and are only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The utility model discloses a medical matched stack formula slot type osteotome, below combine the figure, further describe utility model's structure principle and theory of operation.

As shown in fig. 1 to 2, this application a medical matched stack formula slot type bone knife include bone knife groove box 1, bone knife groove box 1 includes bottom plate 2 and bone knife 3, seted up on bottom plate 2 and stretched out hole 4, bone knife 3 set firmly in bottom plate 2, the quantity of bone knife 3 is four, bone knife 3 centers on stretch out hole 4 setting just bone knife 3 encloses into global confined bone piece and holds chamber 5, and the bone piece holds the shape of chamber 5 and is the quadrangle, sets up like this, only needs a sword can the intercepting bone piece, need not cut three sword or even four sword intercepting bone pieces like traditional bone knife 3, gets bone convenient and fast.

The handle 6 is in threaded connection with the bottom plate 2 through the extending hole 4, so that the same handle 6 can be matched with the osteotome notch boxes 1 of different specifications to take out bone blocks of different sizes, the applicability is strong, and the handle 6 and the osteotome notch boxes 1 can be disassembled to facilitate postoperative cleaning; handle 6 is located bottom plate 2 is kept away from the one end of osteotome 3, be equipped with cavity 7 in the handle 6, the shape of cavity 7 is the cylinder, the axis of cavity 7 with the coaxial setting of the axis of stretching out hole 4, cavity 7 is followed the axial setting of handle 6 just cavity 7 with it communicates with each other to stretch out hole 4, one side of handle 6 is equipped with open slot 8, open slot 8 with cavity 7 communicates with each other.

The push rod 9 is movably arranged in the cavity 7, a radial protruding portion 10 is arranged on one side of the push rod 9, and the radial protruding portion 10 extends out of the open groove 8.

Considering because the lifting surface area of handle 6 is less when getting the bone, directly strike handle 6 and be difficult for striking the positive direction even strike medical personnel easily, still be equipped with the head of a nail 11 in this embodiment, head of a nail 11 is located handle 6 is kept away from the one end of bottom plate 2, the axis of head of a nail 11 with the axis of handle 6 is coaxial just the diameter of head of a nail 11 is greater than the external diameter of handle 6.

The specific working principle is as follows: strike nail cap 11 for osteotome 3 imbeds the bone, until running through the bone make bone piece embedding bone piece hold the chamber 5 in, it is external with the whole patient that shifts out of osteotome groove box 1 to remove handle 6, then strike radial protrusion 10, make radial protrusion 10 remove to osteotome 3 direction along open slot 8, radial protrusion 10 drives push rod 9 and removes, push rod 9 stretches out from stretching out hole 4, will inlay and outwards ejecting in the bone piece that the chamber 5 was held to the bone piece, until taking out the bone piece.

It is worth mentioning that the technical features of the handle, the osteotome, etc. that the patent application relates to should be regarded as the prior art, and the specific structure, the working principle of these technical features and the control mode that may involve adopt the conventional selection in this field can, the utility model discloses do not do further specifically expand the detailed description.

It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments, or some features of the invention may be substituted or omitted, and any modification, substitution, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A medical matched stack formula slot type osteotome which is characterized in that comprises:

the bone knife slot box comprises a bottom plate and a bone knife, wherein an extending hole is formed in the bottom plate, the bone knife is fixedly arranged on the bottom plate, the bone knife is arranged around the extending hole, and the bone knife is surrounded into a bone block accommodating cavity with a closed peripheral surface;

the handle is fixedly arranged at one end, far away from the osteotome, of the bottom plate, a cavity is arranged in the handle, the cavity is arranged along the axial direction of the handle and is communicated with the extending hole, an open slot is arranged at one side of the handle and is communicated with the cavity;

the push rod is movably arranged in the cavity, a radial protruding portion is arranged on one side of the push rod, and the radial protruding portion extends out of the open slot.

2. The medical assembled slotted osteotome defined in claim 1 further comprising: one end of the handle, which is far away from the bottom plate, is provided with a nail cap.

3. The medical assembled slotted osteotome defined in claim 2 further comprising: the axis of the nail cap is coaxial with the axis of the handle, and the diameter of the nail cap is larger than the outer diameter of the handle.

4. The medical assembled slotted osteotome defined in claim 1 further comprising: the handle is in threaded connection with the bottom plate through the extending hole.

5. The medical assembled slotted osteotome defined in claim 1 further comprising: the number of the scalpels is four, and the shape of the bone block accommodating cavity is quadrilateral.

6. The medical assembled slotted osteotome defined in claim 1 further comprising: the cavity is cylindrical in shape.

7. The medical assembled slotted osteotome defined in claim 6 further comprising: the axis of the cavity is coaxial with the axis of the extending hole.