CN217219131U

CN217219131U - Lower limit deep osteotome for endoscope

Info

Publication number: CN217219131U
Application number: CN202220846069.6U
Authority: CN
Inventors: 孔清泉; 王玉; 刘青山
Original assignee: West China Hospital of Sichuan University
Current assignee: Pmt Chengdu Medical Technology Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-08-19
Anticipated expiration: 2032-04-13

Abstract

The utility model discloses a mirror lower limit deep osteotome, which comprises an osteotome handle, an osteotome rod part and an osteotome front end blade, wherein one end of the osteotome rod part is connected with the osteotome handle, and the other end of the osteotome rod part is integrally arranged on the osteotome front end blade; the osteotome front end sword includes the blade, the blade is crossed the center pin of osteotome pole portion, the both sides face of blade are first inclined plane and second inclined plane respectively, first inclined plane passes through osteotome pole portion periphery from the blade, osteotome front end sword still is provided with spacing face, spacing face is on a parallel with the blade, the second inclined plane passes through spacing face from the blade. The lower limit osteotome of the endoscope is provided with the limiting surface at the front end blade of the osteotome, which can automatically limit the osteotome depth and effectively avoid the damage risk of nerve roots and dural sac caused by osteotome in the operation; can treat vertebral plate and articular process more quickly, greatly shorten operation time and increase operation safety.

Description

Lower limit deep osteotome for endoscope

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to dark osteotome under mirror.

Background

In the orthopedic surgery, the awl plate and the apophysis are required to be chiseled sometimes, and the osteotome is required at the moment, the apophysis is usually resected by an incision type surgery, the technical requirement of the surgery is high, the surgery is troublesome, the wound of a patient is recovered slowly, and the ideal surgical effect cannot be met.

Along with the development of endoscopes, more and more operations can be performed with the assistance of endoscopes, however, most of the current endoscopic osteotomes are common osteotomes, for example, chinese utility model patent CN 202015222U (an osteotome), the disclosed osteotome comprises a handle, an osteotome rod and an osteotome head, the handle and the osteotome head are respectively installed at two ends of the osteotome rod, the osteotome rod and the osteotome head are integrated, and the handle and the osteotome rod are welded and fixed; the head of the chisel bone is flat; the osteotome can be used for cutting off small parts of articular bone, and has good cutting effect and safe use; but power control is not good easy falling empty on hand when the bone is cut to the mirror, can cause the damage of nerve root and dura mater sac, and the chisel bone ware handle is connected with chisel bone pole welded fastening moreover, can not change not unidimensional chisel bone pole according to actual need.

SUMMERY OF THE UTILITY MODEL

For solving not enough among the above-mentioned prior art, the utility model provides a dark osteotome under mirror sets up the limit for depth structure, avoids the nerve root and the dura mater sac damage risk that bring because of chisel bone in the operation.

In order to realize the technical purpose, the utility model adopts the technical scheme that:

a lower limit deep osteotome comprises an osteotome handle, an osteotome rod part and an osteotome front end blade, wherein one end of the osteotome rod part is connected with the osteotome handle, and the other end of the osteotome rod part is integrally provided with the osteotome front end blade; the osteotome front end sword includes the blade, the blade is crossed the center pin of osteotome pole portion, the both sides face of blade are first inclined plane and second inclined plane respectively, first inclined plane passes through osteotome pole portion periphery from the blade, osteotome front end sword still is provided with spacing face, spacing face is on a parallel with the blade, the second inclined plane passes through spacing face from the blade.

Furthermore, the thickness of blade is 1mm, spacing face apart from the perpendicular distance of blade is 1 ~ 10 mm.

Preferably, the vertical distance between the limiting surface and the cutting edge is 3 mm.

Preferably, the vertical distance between the limiting surface and the cutting edge is 5 mm.

Further, one end of the bone chisel rod part is detachably connected with the bone chisel handle.

Further, osteotome pole portion is provided with cylindrical connector, the tip of osteotome handle be provided with the connecting hole of connector adaptation.

Preferably, be provided with the external screw thread on the connector, be equipped with in the connecting hole with the internal thread that the external screw thread matches, osteotome pole portion with the osteotome handle passes through threaded connection.

Preferably, the connecting hole is internally provided with a magnet, and the bone chisel rod part is connected with the bone chisel handle through magnet adsorption.

Preferably, osteotome pole portion is cylindricly, the osteotome handle is regular hexagonal prism, osteotome pole portion with osteotome handle coaxial coupling.

Preferably, the diameter of the shank of the osteotome is 6 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the lower limit osteotome of the endoscope is provided with the limiting surface at the front end blade of the osteotome, which can automatically limit the osteotome depth and effectively avoid the damage risk of nerve roots and dural sac caused by osteotome in the operation; the vertebral plate and the articular process can be treated more quickly, the operation time is greatly shortened, and the operation safety is improved; in addition to use in aqueous media under a scope, the same can be used in open surgery.

2) The utility model discloses a dark osteotome under the mirror, the osteotome handle can be dismantled with osteotome pole portion and be connected, can realize changing unidimensional osteotome pole portion on line to satisfy the operation needs.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic front view of an embodiment of the present invention;

figure 2 is a top view of the shank of the osteotome of the embodiment of figure 1;

fig. 3 is an enlarged view within the dashed box in the embodiment shown in fig. 1.

Reference numerals: 10-an osteotome handle, 20-an osteotome rod part, 21-a connecting part, 30-an osteotome front end blade, 31-a cutting edge, 32-a first inclined plane, 33-a second inclined plane and 34-a limiting plane.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

A lower limit deep osteotome comprises an osteotome handle 10, an osteotome rod 20 and an osteotome front end blade 30, wherein one end of the osteotome rod 20 is connected with the osteotome handle 10, and the other end of the osteotome rod 20 is integrally provided with the osteotome front end blade 30; preferably, the osteotome rod part 20 is a cylinder with the diameter of phi 6mm, the osteotome handle 10 is a regular hexagonal prism, and the osteotome rod part is coaxially connected with the osteotome handle; osteotome front end sword 30 includes blade 31, blade 31 is passed the center pin of osteotome pole portion, the both sides face of blade 31 are first inclined plane 32 and second inclined plane 33 respectively, first inclined plane 32 passes through osteotome pole portion 20 periphery from blade 31, osteotome front end sword 30 still is provided with spacing face 34, spacing face 34 is on a parallel with blade 31, second inclined plane 33 passes through spacing face 34 from blade 31. The thickness of the cutting edge 31 is 1mm, and the vertical distance between the limiting surface 34 and the cutting edge 31 is 1-10 mm; preferably, the vertical distance between the limiting surface 34 and the cutting edge 31 is 1mm, 3mm, 5mm, 8mm or 10 mm.

Further, the osteotome rod portion 20 is detachably connected to the osteotome handle 10, facilitating replacement of osteotome rod portions 20 of different sizes, as required for different surgical scenarios. Specifically, the osteotome rod part 20 is provided with a cylindrical connector 21, and the end part of the osteotome handle 10 is provided with a connecting hole matched with the connector; in one embodiment, the connector 21 is provided with an external thread, the connecting hole is provided with an internal thread matching with the external thread, and the bone chisel rod 20 is connected with the bone chisel handle 10 through a thread; in another embodiment, a magnet is disposed in the connection hole, and the osteotome rod portion 20 is connected to the osteotome handle 10 by magnet attraction.

The front end edge of the osteotome is provided with the limiting surface, so that the osteotome depth can be automatically limited in the operation, and the risk of injury of nerve roots and a dural sac caused by osteotome in the operation is effectively avoided; can treat vertebral plate and articular process more quickly, greatly shorten operation time and increase operation safety.

Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.

Claims

1. A lower limit deep osteotome comprises an osteotome handle (10), an osteotome rod part (20) and an osteotome front end cutting edge (30), wherein one end of the osteotome rod part (20) is connected with the osteotome handle (10), and the other end of the osteotome rod part (20) is integrally provided with the osteotome front end cutting edge (30); the method is characterized in that: osteotome front end sword (30) are including blade (31), blade (31) are crossed the center pin of osteotome pole portion, and the both sides face of blade (31) is first inclined plane (32) and second inclined plane (33) respectively, first inclined plane (32) transition to osteotome pole portion (20) periphery from blade (31), osteotome front end sword (30) still are provided with spacing face (34), spacing face (34) are on a parallel with blade (31), second inclined plane (33) transition to spacing face (34) from blade (31).

2. The lower limit depth osteotome of claim 1, wherein: the thickness of blade (31) is 1mm, spacing face (34) apart from the perpendicular distance of blade (31) is 1 ~ 10 mm.

3. The lower limit depth osteotome of claim 2, wherein: the vertical distance between the limiting surface (34) and the cutting edge (31) is 3 mm.

4. The lower limit depth osteotome of claim 2, wherein: the vertical distance between the limiting surface (34) and the cutting edge (31) is 5 mm.

5. The lower limit depth osteotome of claim 1, wherein: one end of the osteotome rod part (20) is detachably connected with the osteotome handle (10).

6. The lower limit depth osteotome of claim 5, wherein: the osteotome rod portion (20) is provided with a cylindrical connector (21), the end portion of the osteotome handle (10) is provided with a connecting hole matched with the connector.

7. The endoscopic lower limit osteotome of claim 6, wherein: be provided with the external screw thread on connector (21), be equipped with in the connecting hole with the internal thread that the external screw thread matches, osteotome pole portion (20) with osteotome handle (10) passes through threaded connection.

8. The lower limit depth osteotome of claim 6, wherein: the interior of the connecting hole is provided with a magnet, and the bone chisel rod part (20) is connected with the bone chisel handle (10) through magnet adsorption.

9. The lower limit osteotome of any one of claims 1-8, wherein: osteotome pole portion (20) are cylindricly, osteotome handle (10) are regular hexagonal prism, osteotome pole portion with osteotome handle coaxial coupling.

10. The lower limit depth osteotome of claim 9, wherein: the diameter of the rod part of the osteotome is phi 6 mm.