CN217186304U

CN217186304U - Minimally invasive surgery osteotome with limiting function

Info

Publication number: CN217186304U
Application number: CN202220880083.8U
Authority: CN
Inventors: 楚磊; 刘斌; 张波; 孙克宁; 雷东; 张建亭
Original assignee: Beijing Donghong Zhiyuan Medical Technology Co ltd
Current assignee: Beijing Donghong Zhiyuan Medical Technology Co ltd
Priority date: 2022-04-17
Filing date: 2022-04-17
Publication date: 2022-08-16
Anticipated expiration: 2032-04-17

Abstract

The utility model discloses a take spacing minimal access surgery osteotome, including handle of a knife (1), cutter arbor (2) and tool bit (3), tool bit (3) are located the one end of cutter arbor (2), tool bit (3) with cutter arbor (2) formula structure as an organic whole, handle of a knife (1) with the other end fixed connection of cutter arbor (2), the tip of tool bit (3) has blade (4), the both sides of blade (4) are formed with first arc surface (5) and second arc surface (6) respectively, keep away from first arc surface (5) the one end of blade (4) is formed with spacing boss (7). The utility model discloses have limit function, can restrict the depth of cut of osteotome, can effectively reduce the operation degree of difficulty, improve the operation success rate.

Description

Minimally invasive surgery osteotome with limiting function

Technical Field

The utility model relates to a osteotome, concretely relates to minimally invasive surgery osteotome with limiting function belongs to the field of medical equipment.

Background

The osteotome is mostly used in bone surgery for cutting bone, and the traditional osteotome has a larger shape. With the improvement of medical level, minimally invasive surgery is mostly adopted for treating lumbar and cervical vertebra diseases at present, bones are sometimes required to be cut when the lumbar or the vertebra is operated, and obviously, the traditional osteotome cannot be applied to the minimally invasive surgery, so people develop an osteotome specially used for the minimally invasive surgery, the osteotome has a small structure and can be used for the minimally invasive surgery, but the traditional osteotome has a simple structure, the osteotome head is very sharp, a protection measure is not provided, the multidirectional cutting function of the osteotome is not good enough, the level requirement on doctors is high, otherwise, the bone cutting accuracy cannot be ensured, and great risk exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take spacing minimal access surgery osteotome to solve the technical problem among the prior art, it has limit function, can restrict the depth of cut of osteotome, can effectively reduce the operation degree of difficulty, improves the operation success rate.

The utility model provides a take spacing minimal access surgery osteotome, including handle of a knife, cutter arbor and tool bit, the tool bit is located the one end of cutter arbor, the tool bit with cutter arbor formula structure as an organic whole, the handle of a knife with the other end fixed connection of cutter arbor, the tip of tool bit has the blade, the both sides of blade are formed with first arc surface and second arc surface respectively, first arc surface is kept away from the one end of blade is formed with the spacing boss.

In the minimally invasive surgical osteotome with the limiting function, preferably, 2 to 4 arc-shaped grooves are formed in the tool shank along the circumferential direction of the tool shank, and the length direction of the arc-shaped grooves is the same as the axial direction of the tool shank.

In the minimally invasive surgery osteotome with a limit function, preferably, one end of the scalpel handle connected with the scalpel bar is of a conical structure.

In the minimally invasive surgery osteotome with limiting function, preferably, a plurality of anti-skid protrusions are arranged in the area between any two adjacent arc-shaped grooves on the scalpel handle at equal intervals.

In the minimally invasive surgery osteotome with the limiting function, the minimally invasive surgery osteotome preferably further comprises a knocking block, and the knocking block is fixedly connected with the tail end of the scalpel handle.

In the minimally invasive surgery osteotome with the limiting function, preferably, at least two blind holes are formed at the tail end of the scalpel handle, the knocking block is provided with insertion rods which are opposite to the blind holes one by one, and the insertion rods are in insertion fit with the blind holes.

In the minimally invasive surgical osteotome with the limiting function, preferably, the total length of the knife handle and the knocking block is 100mm-110mm, the total length of the knife bar and the knife head is 300mm-315mm, and the diameter of the knife bar is 4mm-10 mm.

In the minimally invasive surgical osteotome with the limiting function, preferably, the first arc surface is an R50 arc surface, the second arc surface is an R240 arc surface, and the cutting edge has a thickness of 0.5 mm.

Compared with the prior art, the utility model discloses a handle of a knife, cutter arbor and tool bit, tool bit are located the one end of cutter arbor, tool bit and cutter arbor formula structure as an organic whole, the other end fixed connection of handle of a knife and cutter arbor, the tip of tool bit has the blade, and the both sides of blade are formed with first arc surface and second arc surface respectively, and the one end that the blade was kept away from to first arc surface is formed with the spacing boss. The utility model discloses a setting of spacing boss can the effective control depth of cut, fault-tolerant rate when can improving the doctor operation, even too big hard, also can restrict the depth of cut through spacing boss, prevent unexpected emergence, effectively improve the operation success rate. Meanwhile, the arc design is beneficial to the multi-directional cutting function of the osteotome, and the cutting leverage of the osteotome is increased

Drawings

Fig. 1 is an isometric view of the present invention;

FIG. 2 is an enlarged view of the cutter head;

FIG. 3 is a block diagram of the handle and the strike block;

fig. 4 is a schematic structural diagram of another embodiment.

Description of reference numerals: the tool holder comprises a tool shank 1, a tool bar 2, a tool bit 3, a cutting edge 4, a first arc surface 5, a second arc surface 6, a limiting boss 7, an arc-shaped groove 8, an anti-skid protrusion 9, a knocking block 10, a blind hole 11, an inserted bar 12, a first inclined surface 13 and a second inclined surface 14.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

The embodiment of the utility model provides a: as shown in fig. 1-3, a minimally invasive surgery osteotome with a limiting function comprises a scalpel handle 1, a scalpel rod 2 and a scalpel head 3, wherein the scalpel head 3 is located at one end of the scalpel rod 2, the scalpel head 3 and the scalpel rod 2 are of an integrated structure, the scalpel handle 1 is fixedly connected with the other end of the scalpel rod 2, a cutting edge 4 is arranged at the end part of the scalpel head 3, a first arc surface 5 and a second arc surface 6 are respectively formed on two sides of the cutting edge 4, and a limiting boss 7 is formed at one end, far away from the cutting edge 4, of the first arc surface 5.

The length of the first arc surface 5 is smaller than that of the second arc surface 6, referring to fig. 2, the first arc surface 5 and the second arc surface 6 are both bent upward, the first arc surface 5 extends obliquely upward from the top of the cutting edge 4, and the second arc surface 6 extends obliquely rearward from the bottom of the cutting edge 4. Through the arrangement of the first arc surface 5 and the second arc surface 6, the end plate of the vertebral body can be effectively cut by the osteotome during operation, the working range is wider, the cutting effect is better, and the structure is also beneficial to cutting multi-direction narrow bone tissues. The setting of spacing boss 7 can realize the spacing to depth of cut, and the tip of blade 4 is preferred to be set up to 10mm to the distance between the spacing boss 7, and this distance can be adjusted according to actual demand of course.

Further, 2-4 arc grooves 8 are formed in the tool shank 1 along the circumferential direction of the tool shank, the number of the arc grooves 8 is four in the embodiment, and the length direction of the arc grooves 8 is the same as the axial direction of the tool shank 1. One end of the knife handle 1 connected with the knife bar 2 is of a conical structure. A plurality of anti-skid protrusions 9 are arranged in the area between any two adjacent arc-shaped grooves 8 on the knife handle 1 at equal intervals.

Through the setting of arc recess 8 and non-slip raised 9, can effectively play anti-skidding effect, make doctor can control depth of cut and cutting effect better moreover.

In one embodiment, the tool also comprises a knocking block 10, and the knocking block 10 is fixedly connected with the tail end of the tool handle 1. At least two blind holes 11 are formed at the tail end of the tool handle 1, inserting rods 12 which are opposite to the blind holes 11 one by one are arranged on the knocking block 10, and the inserting rods 12 are in inserting fit with the blind holes 11.

Cutter arbor 2 and tool bit 3 can adopt the alloy material, and handle of a knife 1 can adopt plastics material or rubber material, strikes the optional rigid plastic of piece 10 or metal material, strikes the design of piece 10 structure through the aforesaid, can conveniently change and strike piece 10, prevents to damage because of striking piece 10 and causes the condemned problem of instrument.

Further, the total length of the tool shank 1 and the knocking block 10 is 100mm-110mm, preferably 108mm in the embodiment, the total length of the tool shank 2 and the tool bit 3 is 300mm-315mm, preferably 310mm in the embodiment, the diameter of the tool shank 2 is 4mm-10mm, preferably 6mm in the embodiment, and the diameter of the tool shank 1 is at least twice as large as the diameter of the tool shank 2.

Further, the first arc surface 5 is an R50 arc surface, the second arc surface 6 is an R240 arc surface, and the thickness of the cutting edge 4 is 0.5 mm.

In another specific embodiment, as shown in fig. 4, the minimally invasive surgery osteotome with the limiting function comprises a scalpel handle 1, a scalpel rod 2 and a scalpel head 3, wherein the scalpel head 3 is located at one end of the scalpel rod 2, the scalpel head 3 and the scalpel rod 2 are of an integrated structure, the scalpel handle 1 is fixedly connected with the other end of the scalpel rod 2, a cutting edge 4 is formed at the end portion of the scalpel head 3, a first inclined surface 13 and a second inclined surface 14 are respectively formed on two sides of the cutting edge 4, and a limiting boss 7 is formed at one end, away from the cutting edge 4, of the first inclined surface 13. The tail end of the knife handle 1 is provided with a knocking block 10.

The structure, features and effects of the present invention have been described in detail above according to the embodiment shown in the drawings, and the above description is only the preferred embodiment of the present invention, but the present invention is not limited to the implementation scope shown in the drawings, and all changes made according to the idea of the present invention or equivalent embodiments modified to the same changes should be considered within the protection scope of the present invention when not exceeding the spirit covered by the description and drawings.

Claims

1. The utility model provides a take spacing minimal access surgery osteotome, includes handle of a knife (1), cutter arbor (2) and tool bit (3), its characterized in that: the utility model discloses a cutter head, including cutter arbor (2), tool bit (3) and cutter arbor (2) formula structure as an organic whole, handle of a knife (1) with the other end fixed connection of cutter arbor (2), the tip of tool bit (3) has blade (4), the both sides of blade (4) are formed with first arc surface (5) and second arc surface (6) respectively, keep away from first arc surface (5) the one end of blade (4) is formed with spacing boss (7).

2. The minimally invasive surgical osteotome defined in claim 1 further comprising: 2-4 arc grooves (8) are formed in the knife handle (1) along the circumferential direction of the knife handle, and the length direction of each arc groove (8) is the same as the axis direction of the knife handle (1).

3. The minimally invasive surgical osteotome defined in claim 2, wherein: one end of the knife handle (1) connected with the knife bar (2) is of a conical structure.

4. The minimally invasive surgical osteotome defined in claim 3 further comprising: a plurality of anti-skid protrusions (9) are arranged in the area between any two adjacent arc-shaped grooves (8) on the knife handle (1) at equal intervals.

5. The minimally invasive surgical osteotome defined in any one of claims 2-4, wherein: the tool handle is characterized by further comprising a knocking block (10), wherein the knocking block (10) is fixedly connected with the tail end of the tool handle (1).

6. The minimally invasive surgical osteotome defined in claim 5 further comprising: the tail end of the tool handle (1) is provided with at least two blind holes (11), the knocking block (10) is provided with inserting rods (12) which are opposite to the blind holes (11) one by one, and the inserting rods (12) are in inserting connection with the blind holes (11).

7. The minimally invasive surgical osteotome defined in claim 6 further comprising: the total length of the knife handle (1) and the knocking block (10) is 100-110 mm, the total length of the knife bar (2) and the knife head (3) is 300-315 mm, and the diameter of the knife bar (2) is 4-10 mm.

8. The minimally invasive surgical osteotome defined in claim 1 further comprising: first arc surface (5) are R50 arc surface, second arc surface (6) are R240 arc surface, the thickness of blade (4) is 0.5 mm.