CN219480482U

CN219480482U - Bone reducing mechanism for orthopedic operation

Info

Publication number: CN219480482U
Application number: CN202320485621.8U
Authority: CN
Inventors: 唐宏阳
Original assignee: Henan Provincial Peoples Hospital
Current assignee: Henan Provincial Peoples Hospital
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-08-08
Anticipated expiration: 2033-03-14

Abstract

The utility model relates to a bone smashing device for orthopedic surgery, which relates to the technical field of medical appliances, and comprises a pressing cover, a fixed seat and a grinding seat, wherein the pressing cover and the grinding seat are respectively positioned on the upper side and the lower side of the fixed seat, a cavity for communicating the pressing cover with the grinding seat is formed in the fixed seat, a net-shaped tool rest is arranged in the cavity, extrusion columns which are in one-to-one correspondence with grids of the net-shaped tool rest are arranged on the side, facing the fixed seat, of the pressing cover, after the pressing cover is turned over towards the fixed seat, the pressing cover can be buckled on the fixed seat, any extrusion column can be inserted into the grid of the net-shaped tool rest corresponding to the pressing cover, the grinding seat is in threaded connection with the fixed seat, and the grinding seat can move towards the direction of the net-shaped tool rest of the fixed seat in the rotating process of the fixed seat so as to be matched with the extrusion columns to grind bone blocks between the fixed seat and the grinding seat. The device has simple structure and good crushing effect.

Description

Bone reducing mechanism for orthopedic operation

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a bone crushing device for orthopedic surgery.

Background

In the orthopedic operation, the cartilage tissue of the patient suffering from the orthopedic diseases such as the spine, the cervical vertebra, the lumbar intervertebral disc and the like is crushed into bone cement-like filler which is filled into the lesion part of the patient so as to cure the orthopedic diseases. However, in the conventional bone surgery, due to the lack of a corresponding cartilage pulverizing device, an operator often needs to use rongeurs to cut bones into pieces one by one to perform a bone-breaking and bone cement filling operation, and this method is difficult to ensure that the obtained bone-breaking powder particles are uniform, and the bone cement filling device is easily blocked due to the excessively large particles, so that the operation efficiency is reduced, and the probability of medical accidents is seriously increased.

In order to solve the problems, the authorized bulletin number CN215140426U provides an autologous bone crushing device, and through arranging a pressing wheel, a cutting net, a powerful spring, a connecting rod and a mounting groove, the autologous bone crushing device can be used by medical staff, and the autologous bone to be crushed can be directly placed in the device for cutting.

The applicant has found that the prior devices are only capable of cutting bone to smaller sizes but not smaller grinding, resulting in less better integration with the original tissue when implanted in the body.

Disclosure of Invention

The utility model aims to provide a bone crushing device for orthopedic surgery, which aims to solve the problem of unsatisfactory bone crushing effect in the prior art.

In order to solve the problems, the bone crushing device for the orthopedic operation adopts the following technical scheme:

the bone crushing device for the orthopedic operation comprises a pressing cover, a fixed seat and a grinding seat, wherein the pressing cover and the grinding seat are respectively positioned on the upper side and the lower side of the fixed seat, a cavity which is communicated with the pressing cover and the grinding seat is formed in the fixed seat, a net-shaped tool rest is arranged in the cavity, extrusion columns which are in one-to-one correspondence with grids of the net-shaped tool rest are arranged on the side, facing the fixed seat, of the pressing cover, after the pressing cover is turned towards the fixed seat, the pressing cover can be buckled on the fixed seat, any extrusion column can be inserted into the grid of the net-shaped tool rest corresponding to the pressing cover, the grinding seat is in threaded connection with the fixed seat, and the grinding seat can move towards the net-shaped tool rest of the fixed seat in the rotating process of the fixed seat so as to be matched with the extrusion columns to grind bone blocks between the fixed seat and the grinding seat.

Preferably, the other end of the pressing cover and the other end of the fixing seat are both provided with handles.

Preferably, the outer end surface of the extrusion column is provided with a rough surface.

The beneficial effects of the utility model are as follows:

the utility model provides a bone smashing device for orthopedic surgery, which comprises a pressing cover and a fixed seat, wherein a reticular knife rest is arranged in the fixed seat, pressing columns which are in one-to-one correspondence with grids of the reticular knife rest are arranged on the side of the pressing cover facing the fixed seat, the pressing cover can be buckled on the fixed seat after being overturned towards the fixed seat, and any pressing column can be inserted into the grids of the reticular knife rest corresponding to the pressing cover. The device firstly divides the bone into small blocks and then grinds the small blocks, and the bone grain particles are smaller than those produced by the prior art, so that the device is easy to use in bone surgery.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the following briefly describes the drawings that are required to be used in the embodiments:

FIG. 1 is an isometric view of a bone morcellating device for use in orthopedic surgery;

fig. 2 is a cross-sectional view of a bone morcellating device for use in bone surgery.

Reference numerals illustrate: 1. pressing the cover; 2. a fixing seat; 3. a grinding seat; 4. a handle; 5. a net-shaped knife rest; 6. and extruding the column.

Detailed Description

In order to make the technical purpose, technical scheme and beneficial effect of the present utility model more clear, the technical scheme of the present utility model is further described below with reference to the accompanying drawings and specific embodiments.

The utility model provides a bone crushing device for bone surgery, which aims to solve the problems that the existing bone crushing device is large in particle and not easy to absorb. The device realizes that the size of broken bones is smaller through a mode of firstly cutting bones and then grinding, and compared with direct manual crushing, the device has the advantages of improving efficiency and saving labor, and compared with a device which can only be cut, the device has smaller granularity of bone particles. Specifically, this device includes press lid 1, fixing base 2 and grinds seat 3, press lid 1 and grinds seat 3 and be located the upper and lower both sides of fixing base 2 respectively, fixing base 2 sets up to hollow tubular structure, the shape of press lid 1 matches the up end shape setting of fixing base 2, grinding seat 3 outside is located to fixing base 2 cover, the inner wall of fixing base 2 is provided with the internal thread, the outer wall of grinding seat 3 is provided with the external screw thread, so that fixing base 2 and grind seat 3 threaded connection, be provided with netted knife rest 5 in the fixing base 2, press lid 1 is provided with the extrusion post 6 with netted knife rest 5's net one-to-one towards fixing base 2 side, press lid 1 can lock on fixing base 2 and arbitrary extrusion post 6 homoenergetic is inserted in the net knife rest 5 that corresponds to it, and the one end that presses the post can wear to grinding seat 3 sides from netted knife rest 5, so that the end face that is located grinding seat 3 side and netted knife rest 5 are located grinding seat 3 side terminal surface and are whole. The grinding seat 3 can move towards the net-shaped tool rest 5 of the fixed seat 2 in the rotating process of the fixed seat 2 so as to be matched with the extrusion column 6 to grind the bone blocks between the fixed seat 2 and the grinding seat 3.

The net-shaped knife rest 5 is formed by crisscross arrangement of a plurality of blades.

To facilitate the pressing of the device, the other end of the pressing cap 1 and the other end of the fixing base 2 are provided with handles 4, and the user cuts the bone by restraining the two handles 4 together to provide a greater force.

The outer end surface of the grinding and extruding column 6 is provided with a rough surface for the convenience of grinding and extruding. Further, both the side of the net-shaped tool rest 5 facing the grinding seat 3 and the inner wall of the grinding seat 3 are provided with rough surfaces.

Finally, what should be said is: the above embodiments are only for illustrating the technical solution of the present utility model, and any equivalent replacement of the present utility model and modification or partial replacement without departing from the spirit and scope of the present utility model should be covered in the scope of the claims of the present utility model.

Claims

1. The utility model provides a bone reducing mechanism for orthopedic surgery, a serial communication port, including the press lid, fixing base and grinding seat, press lid and grinding seat are located the upper and lower both sides of fixing base respectively, set up the cavity that communicates press lid and grinding seat in the fixing base, be provided with netted knife rest in the cavity, press lid orientation fixing base side be provided with netted knife rest's net one-to-one extrusion post, can lock on the fixing base and arbitrary extrusion post homoenergetic insert in the net of netted knife rest rather than corresponding after the press lid overturns to the fixing base direction, grinding seat and fixing base spiro union, grinding seat can be to the netted knife rest direction of fixing base along the rotatory in-process of fixing base removal, with the cooperation of extrusion post grind the bone piece between fixing base and the grinding seat.

2. The bone crushing device for orthopedic surgery according to claim 1, wherein the other end of the pressing cover and the other end of the fixing base are both provided with handles.

3. A bone morcellating device for bone surgery according to claim 2, wherein the outer end surface of the compression column is roughened.