CN214761317U - Osteotome for intervertebral foramen under operation - Google Patents

Abstract

The application relates to a osteotome for intervertebral foramen under mirror operation relates to medical instrument's field, be in including tool bit, rigid coupling the straight-bar and the setting of tool bit one end are in the straight-bar is kept away from the handle of tool bit one end, the tool bit is kept away from the one end processing of straight-bar forms the cutting edge, the cutting edge is circular-arcly. The bone resection device has the effects of reducing the complexity in bone resection and improving the resection efficiency.

Description

Osteotome for intervertebral foramen under operation

Technical Field

The application relates to the field of medical equipment, in particular to a osteotome for intervertebral foramen under-mirror operation.

Background

At present, the symptoms such as lumbar disc herniation need to be treated through operations such as intervertebral fusion, when the intervertebral fusion is performed, a doctor usually needs to insert a circular operation tube into a human body, then inserts a osteotome from the operation tube and resects protruded bone on a vertebra, so that the protruded bone on the vertebra is cut off, a circular operation channel which directly reaches the intervertebral disc is established, and then the subsequent intervertebral disc resection work is performed in the operation channel.

At present, when a bone knife used for cutting a protruded bone on a vertebra is used, a cutting edge of the bone knife is flat, when the bone is cut, an approximately circular operation channel communicated with an operation tube needs to be cut, so that the bone knife needs to be operated for cutting for a plurality of times, the angle of the bone knife needs to be adjusted after each cutting, and finally the approximately circular operation channel can be formed, and the operation is very troublesome.

SUMMERY OF THE UTILITY MODEL

In order to reduce the complexity when excising the sclerotin, improve excision efficiency, this application provides a osteotome for intervertebral foramen under operation.

The application provides a osteotome for intervertebral foraminal surgery adopts following technical scheme:

the utility model provides a osteotome for intervertebral foramen under operation, is in including tool bit, rigid coupling the straight-bar and the setting of tool bit one end are in the straight-bar is kept away from the handle of tool bit one end, the tool bit is kept away from the one end processing of straight-bar forms the cutting edge, the cutting edge is circular-arcly.

By adopting the technical scheme, the arc-shaped cutting edge can directly cut an arc-shaped incision to form a circular operation channel when the bone is resected, and the resected bone is very complete, so that the bone can be conveniently cut off in the subsequent use. The bone knife does not need to be used for cutting a little by little, so that the complexity in bone cutting is greatly reduced, and the cutting efficiency is improved.

Optionally, a bone placing groove is formed in the outer wall of the cutter head, and the bone placing groove is communicated to one end, far away from the straight rod, of the cutter head.

Through adopting above-mentioned technical scheme, the sclerotin through the cutting edge excision directly reaches and puts the bone groove in, when taking out the tool bit from the human body, the sclerotin of cutting off also is located and puts the bone groove and takes out along the tool bit, and it is very convenient just to take out the sclerotin of excision from the human body, and it is more convenient to operate.

Optionally, the diameter of the cutter head is larger than the diameter of the straight rod.

Through adopting above-mentioned technical scheme, when the tool bit was amputated the sclerotin, can insert the straight-bar in the hole of holed mirror, because the hole diameter of holed mirror is fixed, the straight-bar is on guaranteeing its basis of supporting intensity, and is thinner, and mobilizable space is bigger, and is more nimble for excision to the sclerotin is more convenient.

Optionally, the diameter of the cutter head is smaller than that of the inner hole of the intervertebral foramen mirror, so that the cutter head can pass through the inner hole of the intervertebral foramen mirror conveniently.

Through adopting above-mentioned technical scheme, during the use, can directly pass the tool bit in the hole of intervertebral foramen mirror to use with the intervertebral foramen mirror cooperation, be convenient for observe the inserted degree of depth of osteotome, avoid getting into the neural damage of canalis spinalis.

Optionally, the joint of the cutter head and the straight rod is in arc transition.

Through adopting above-mentioned technical scheme, can avoid when extracting the tool bit from the human body, tool bit and straight-bar junction cause destruction to the human body.

Optionally, a silica gel sleeve is installed on the outer wall of the handle.

Through adopting above-mentioned technical scheme, silica gel cover texture is soft, and is wear-resisting high temperature resistant, and the operation is felt better.

Optionally, an anti-slip ball is fixedly connected to the outer wall of the silica gel sleeve.

Through adopting above-mentioned technical scheme, can increase the frictional force between user's hand and the silica gel cover, reduce the phenomenon of handle landing from user's hand among the operation process.

Optionally, the diameter of the handle gradually increases from one end close to the straight rod to one end far away from the straight rod.

Through adopting above-mentioned technical scheme, when extracting the tool bit from the human body, the user will drive the tool bit through the conical surface of handle and extract from the human body, and it is more laborsaving to operate, can avoid the phenomenon of handle landing from the user hand.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by adopting the arc-shaped cutting edge, the arc-shaped cut can be directly cut during cutting, so that a circular operation channel communicated with the operation tube is formed by cutting, and the angle of the osteotome does not need to be repeatedly adjusted for cutting; compared with the existing bone cutting method, the bone is broken through repeated cutting, the bone cut by the osteotome is more complete and more convenient to cut, the complexity in bone cutting is greatly reduced, and the cutting efficiency is improved;

2. the bone placing groove enables the cut bone substances to be directly collected in the accommodating groove, and when the cutter head is taken out of a human body, the cut bone substances are also taken out, so that the bone substances are taken out very conveniently.

Drawings

Fig. 1 is a schematic structural view of the entire present application.

Fig. 2 is a schematic view of the configuration of the osteotome and the foraminoscope in cooperation.

Description of reference numerals: 1. a cutter head; 11. a cutting edge; 12. a bone placing groove; 2. a straight rod; 3. a handle; 31. a silica gel sleeve; 32. an anti-skid ball; 4. an intervertebral foramen mirror.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a osteotome for intervertebral foramen under-mirror operation. Referring to fig. 1, the osteotome for the intervertebral foramen endoscopic surgery comprises a scalpel head 1, a straight rod 2 fixedly connected to one end of the scalpel head 1, and a handle 3 arranged at one end of the straight rod 2 far away from the scalpel head 1. Wherein, a cutting edge 11 is formed at one end of the cutter head 1 far away from the straight rod 2, and the cutting edge 11 is arc-shaped. When the bone cutting instrument is used, the handle 3 is directly operated, the cutter head 1 is inserted into the operation tube and cuts the protruded bone, so that the bone is cut off, and the cutting surface is in an arc shape. So that after the bone is completely cut off, a circular gap, i.e. a quasi-circular surgical channel communicating with the operating tube, is formed in the vertebra. The circular-like operation channel can be directly cut and formed by the arc-shaped cutting edge 11, and the bone is completely cut off. Compared with the existing osteotome which is flat, the osteotome can be cut for many times, and the angle of the osteotome can be repeatedly adjusted during cutting at every time, so that the accuracy during cutting is greatly improved, the complexity during bone resection is reduced, and the resection efficiency is greatly improved.

Referring to fig. 2, in order to facilitate the real-time understanding of the depth of the tool bit 1 extending when the protruded bone is removed, the diameter of the tool bit 1 is smaller than the diameter of the inner hole of the colposcope 4. During the use, can directly insert tool bit 1 from the hole of foraminiferous mirror 4, can carry out real-time observation to the motion trail of tool bit 1 through foraminiferous mirror 4, avoid tool bit 1 to get into the spinal canal and harm nerve.

Referring to fig. 1, a bone placing groove 12 for placing cut bone is formed in one side of a cutter head 1, the bone placing groove 12 penetrates through one end of the cutter head 1, which is far away from a straight rod 2, and when the cutter head 1 cuts the protruded bone, the cut bone directly falls into the bone placing groove 12 and is taken out of the body along with the cutter head 1, so that the bone is very convenient to take out.

When the intervertebral foramen endoscope is used, the tool bit 1 and the straight rod 2 need to be inserted into an inner hole of the intervertebral foramen endoscope 4, and the diameter of the inner hole of the intervertebral foramen endoscope 4 is certain, so that the straight rod 2 has smaller diameter and larger moving range in the inner hole of the intervertebral foramen endoscope 4 and more flexible operation while ensuring the integral supporting strength. The larger the diameter of the tool bit 1 is, the better the bone is cut, so that the diameter of the tool bit 1 is larger than that of the straight rod 2, the convenience of the tool bit 1 for cutting the bone is guaranteed, and the operation of the straight rod 2 is more flexible.

Meanwhile, in order to avoid scratching the human body when the cutter head 1 is taken out of the human body due to the fact that the cross sections of the cutter head 1 and the straight rod 2 are changed and touch the rest parts of the human body, the joint of the cutter head 1 and the straight rod 2 is in arc transition, and the cutter head 1 can be taken out more smoothly and conveniently.

Referring to fig. 1, handle 3 can be direct rigid coupling in the one end that the tool bit 1 was kept away from to straight-bar 2, also can dismantle the one end of connecting and keeping away from tool bit 1 at straight-bar 2, when handle 3 can dismantle with straight-bar 2 and be connected, can adopt threaded connection's form, it is concrete, can be at the one end processing external screw thread of straight-bar 2 towards handle 3, set up screw hole (not shown in the figure) in handle 3 towards the one end of straight-bar 2, can realize the dismantlement of handle 3 and straight-bar 2 and connect in screwing into the screw hole through twisting straight-bar 2, also can directly pull down handle 3 when not using, it is more convenient to accomodate. Wherein, be provided with silica gel cover 31 on the outer wall of handle 3, silica gel cover 31 can directly overlap and establish on handle 3, also can bond on handle 3 through glue. The silica gel cover 31 is soft in texture, wear-resistant and high-temperature resistant, and the operation is felt better, and is very comfortable during the use, can also play the effect of protection to the handle 3. Silica gel cover 31 cover is established on 3 outer walls of handle for the one end that the tool bit 1 was kept away from to handle 3 is the stereoplasm material, when excising the sclerotin through tool bit 1, and the doctor can relieve external instrument and strike the one end that the tool bit 1 was kept away from to handle 3, and the operation is convenient laborsaving more.

Wherein, in order to avoid when the user holds handle 3, handle 3 landing from the user hand, the rigid coupling has a plurality of anti-skidding balls 32 on silica gel cover 31 outer wall, and anti-skidding ball 32 conveniently sets up side by side along handle 3 length, and anti-skidding ball 32 can increase the frictional force between user's hand and the handle 3, has reduced the probability that handle 3 held the landing from the user in the operation process.

Wherein, antiskid ball 32 can be provided with two rows of rigid couplings respectively in the both sides that handle 3 is relative for antiskid ball 32 can also play the effect of sign on the basis of increasing frictional force between user's hand and the handle 3, the doctor of being convenient for judges the position of opposition bone groove 12 and cutting edge 11, when inserting the tool bit 1 human and excising the sclerotin, the doctor carries out clear judgement through the orientation of the opening of opposition bone groove 12 and the cutting edge 11 that antiskid ball 32's position just can be accurate. In the present application, the anti-slip ball 32 is fixed on both sides of the handle 3 facing the bone setting groove 12 and away from the bone setting groove 12. It should be understood that the anti-slip balls 32 may be disposed in a row on any side, three rows on any three sides, or multiple rows along the circumference of the handle 3, and when multiple rows are disposed along the circumference, the number of any one or multiple rows is increased or decreased, as long as the function of identification is achieved.

Referring to fig. 1, the diameter of the handle 3 gradually increases from the end close to the straight rod 2 to the end far away from the straight rod 2, and when a user operates the handle 3 to take out the cutter head 1 from a human body, the handle 3 is provided with a force far away from the human body through the conical surface of the handle 3, so that the cutter head 1 can be taken out from the human body more conveniently.

The implementation principle of the osteotome for the intervertebral foramen under-operation in the embodiment of the application is as follows: when the bone cutting instrument is used, the cutter head 1 is directly inserted into an inner hole of the intervertebral foramen mirror 4, so that a doctor can conveniently observe the extending degree of the cutter head 1 in real time through the intervertebral foramen mirror 4, then the cutting blade 11 directly cuts the protruded bone, and the cut bone directly falls into the bone placing groove 12 and is taken out of the body along with the cutter head 1. And the cut cutin is very complete, and a quasi-circular operation channel can be directly formed on the vertebra, thereby greatly reducing the complexity of cutting off the sclerotin and greatly improving the cutting efficiency.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A osteotome for use in an intervertebral foraminal operation, comprising: including tool bit (1), rigid coupling be in straight-bar (2) and the setting of tool bit (1) one end are in straight-bar (2) are kept away from handle (3) of tool bit (1) one end, tool bit (1) are kept away from the one end processing of straight-bar (2) forms cutting edge (11), cutting edge (11) are circular-arcly.

2. A osteotome for use in an intervertebral foraminal operation as defined in claim 1, wherein: the bone placing groove (12) is formed in the outer wall of the cutter head (1), and the bone placing groove (12) is communicated to one end, far away from the straight rod (2), of the cutter head (1).

3. A osteotome for use in an intervertebral foraminal operation as defined in claim 1, wherein: the diameter of the tool bit (1) is larger than that of the straight rod (2).

4. A osteotome for use in an intervertebral foraminal operation as defined in claim 1, wherein: the diameter of the tool bit (1) is smaller than that of the inner hole of the intervertebral foramen mirror (4), so that the tool bit (1) can conveniently pass through the inner hole of the intervertebral foramen mirror (4).

5. A osteotome for use in an intervertebral foraminal operation as defined in claim 1, wherein: the joint of the tool bit (1) and the straight rod (2) is in circular arc transition.

6. A osteotome for use in an intervertebral foraminal operation as defined in claim 1, wherein: and a silica gel sleeve (31) is arranged on the outer wall of the handle (3).

7. A osteotome for use in an intervertebral foraminal operation as defined in claim 6, wherein: and an anti-skid ball (32) is fixedly connected to the outer wall of the silica gel sleeve (31).

8. A osteotome for use in an intervertebral foraminal operation as defined in claim 1, wherein: the diameter of the handle (3) is gradually increased from one end close to the straight rod (2) to one end far away from the straight rod (2).

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