阅读说明：本技术 一种脊柱内镜大通道系统专用的镜内环锯装置 (Dedicated ring saw device in backbone scope big passageway system ) 是由 周传利 马学晓 祝凯 申延青 王岩 王超 郭建伟 许德荣 李光辉 于 2019-09-24 设计创作，主要内容包括：本发明提供一种脊柱内镜大通道系统专用的镜内环锯装置,包括由手柄部、体部和尾部一体成型的空心装置,其空心贯穿所述手柄部、体部和尾部,所述手柄部为T型结构,体部为圆柱状结构,尾部为弯刀齿状结构。本装置用于解决大通道系统下椎板切除及成行的问题,避免了对镜下磨钻和椎板咬骨钳的依赖,且能够大大提高手术效率,在严重椎管狭窄的减压过程中有重要价值,同时取出的骨质可以直接应用到椎间隙植骨,能够有效提高经皮内镜辅助镜下融合的效率,大大提高了手术的安全性。(The invention provides a special intra-scope trepan device for a backbone endoscope large channel system, which comprises a hollow device integrally formed by a handle part, a body part and a tail part, wherein the hollow device penetrates through the handle part, the body part and the tail part, the handle part is of a T-shaped structure, the body part is of a cylindrical structure, and the tail part is of a bent-blade tooth-shaped structure. This device is used for solving vertebral plate excision and the problem of in line under the big passageway system, has avoided the reliance to under the mirror abrasive drilling and vertebral plate rongeur, and can improve operation efficiency greatly, has important value at the constrictive decompression in-process of serious canalis spinalis, and the sclerotin of taking out simultaneously can direct application to intervertebral space bone grafting, can effectively improve the efficiency of fusing under the supplementary mirror of percutaneous scope, has improved the security of operation greatly.)

1. the utility model provides a dedicated ring saw device in mirror of backbone scope large passage system which characterized in that: the hollow device comprises a handle part, a connecting part, a body part and a tail part which are integrally formed, the hollow part penetrates through the handle part, the body part and the tail part, the body part is of a cylindrical structure, and the tail part is of a bent-blade tooth-shaped structure.

2. The special trephine device for the backbone endoscope large channel system according to claim 1, wherein: the handle portion, the connecting portion and the body portion are made of stainless steel, and the tail portion is made of alloy steel.

3. The special trephine device for the backbone endoscope large channel system according to claim 1, wherein: the handle part is designed as a detachable mechanical handle.

4. The special trephine device for the backbone endoscope large channel system according to claim 1, wherein: the handle part is of a T-shaped structure.

5. The special trephine device for the backbone endoscope large channel system according to claim 1, wherein: the length of the connecting part is 1.5cm, and the inner diameter is 4.5 mm; the outer diameter is 6.5 mm; the length of the body part is 21cm, the inner diameter is 4.5mm, and the outer diameter is 5.5 mm; the tail part is designed in a bent knife tooth shape, and the length of the tail part is 2 mm.

6. The special trephine device for the backbone endoscope large channel system according to claim 1, wherein: the body is close to connecting portion one end sets up the limit deep portion, the limit deep portion includes limit deep hole, limit dark lantern ring and limit dark nut, the limit deep hole is seted up on the body, the limit dark lantern ring is equipped with the screw hole and overlaps and is in on the body, limit dark nut with the screw hole phase-match of limit dark lantern ring.

7. The special trephine device for the backbone endoscope large channel system according to claim 6, wherein: the distance between the limited deep holes and the connecting part is 5mm, the diameter of each limited deep hole is 2mm, the interval distance is 3mm, and the total number is 4.

8. The special trephine device for the backbone endoscope large channel system according to claim 6, wherein: the depth limiting lantern ring can slide along the body part, and has the outer diameter of 1.0cm, the inner diameter of 5.5mm and the thickness of 5 mm; the depth limiting nut is in a T-shaped design, the diameter of an exposed part is 5mm, the depth limiting nut enters the depth limiting lantern ring, the inner diameter is 2mm, and the length is 5 mm.

Technical Field

The invention belongs to the technical field of minimally invasive spine, relates to a percutaneous spine endoscope decompression technology through an intervertebral plate approach, and particularly relates to an endoscopic trepan device special for a spine endoscope large channel system.

Background

the spine endoscope large-channel operation system is one of the popular spine minimally invasive technologies at present, is widely applied to solving various complicated lumbar disc herniation and gradually applied to treating severe lumbar spinal stenosis and cervical spondylosis, and the existing percutaneous endoscope-assisted fusion technology is gradually advocated, but how to improve the operation efficiency and achieve sufficient decompression is a key link influencing the popularization of the technology. The large channel system has a thicker inner diameter than a conventional endoscope, and can work under the large endoscope for decompression, even under the endoscope for power. The problem is that the learning curve of the power safety and the controllability under the mirror is higher, and the charging is high so that the power safety and the controllability under the mirror cannot be popularized; the vertebral plate rongeur has low use efficiency, and has more nerve stimulation by repeated operation, and the visual in-line decompression by means of the percutaneous lateral approach is worth discussing. Therefore, how to realize the visualization of the vertebral plate alignment under the large channel system is the problem to be solved by the invention.

Disclosure of Invention

The invention aims to provide a special intrascope trephine device for a large channel system of a spinal endoscope, which is used for solving the problem of spinal canal decompression of the large channel system.

In order to solve the technical problems, the invention adopts the following technical scheme:

The utility model provides a dedicated ring saw device in mirror of backbone scope large channel system, includes by handle portion, connecting portion, somatic part and afterbody integrated into one piece's hollow device, its hollow runs through handle portion, somatic part and afterbody, handle portion is T type structure, and the somatic part is cylindric structure, and the afterbody is curved sword dentate structure.

Further, the handle portion, the connecting portion and the body portion are made of stainless steel, and the tail portion is made of alloy steel.

Further, the handle portion is a removable force device.

Further, the handle portion is of a T-shaped design; the length of the connecting part is 1.5cm, and the inner diameter is 4.5 mm; the outer diameter is 6.5 mm; the length of the body part is 21cm, the inner diameter is 4.5mm, and the outer diameter is 5.5 mm; the tail part is designed in a bent knife tooth shape, and the length of the tail part is 2 mm.

Further, a depth limiting part is arranged at one end, close to the connecting part, of the body part, the depth limiting part is designed to be unique, the depth limiting part comprises a depth limiting hole, a depth limiting sleeve ring and a depth limiting nut, the depth limiting hole is formed in the body part, the depth limiting sleeve ring is provided with a threaded hole and is sleeved on the body part, and the depth limiting nut is matched with the threaded hole of the depth limiting sleeve ring.

Furthermore, the distance between the deep limiting holes and the connecting part is 5mm, the diameter of each deep limiting hole is 2mm, the interval distance is 3mm, and the total number is 4.

Further, the depth limiting lantern ring can slide along the body part, and the outer diameter of the depth limiting lantern ring is 1.0cm, the inner diameter of the depth limiting lantern ring is 5.5mm, and the thickness of the depth limiting lantern ring is 5 mm; the depth limiting nut is in a T-shaped design, the diameter of an exposed part is 5mm, the depth limiting nut enters the depth limiting lantern ring, the inner diameter is 2mm, and the length is 5 mm.

Compared with the prior art, the invention has the advantages and positive effects that:

The spine endoscope large channel can realize minimally invasive surgery, and achieve the vertebral canal decompression range like open surgery, but the current tool design is limited, and the use efficiency is not high. The power under the mirror is not safe enough, the efficiency is low and the cost is high; the vertebral plate rongeur is limited by the angle, the vertebral plate rongeur can be seen and not bitten frequently, and the efficiency is not high enough; the invention belongs to an under-mirror tool, which can gradually treat bony structures under direct vision, gradually expand and decompress narrow vertebral plate gaps, and treat sclerotin under very small force by the design of detachable force of a handle part, thereby avoiding the risk of slipping and even falling into a vertebral canal caused by multiple force application. The unique depth limiting design can ensure that the bone removing link has quantitative standard, and the bone removing link is not easy to fall into the vertebral canal suddenly, thereby realizing double insurance for the operation.

Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.

Drawings

the invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic perspective view of an in-scope trepan apparatus dedicated for a large channel system of a spinal endoscope according to the present invention;

FIG. 2 is a top view of the special intra-scope trephine device for a spine endoscope large channel system according to the present invention;

FIG. 3 is a side view of the special intra-scope trephine device for a spinal endoscope large channel system according to the present invention;

FIG. 4 is a half sectional view A-A of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4 at I;

fig. 6 is a partial enlarged view at II of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1-6, this embodiment provides an endoscope trepanning device specifically for a large channel system of a spinal endoscope, which includes a hollow device integrally formed by a handle portion 1, a connecting portion 2, a body portion 3 and a tail portion 4, wherein the hollow device penetrates through the handle portion 1, the body portion 3 and the tail portion 4, the handle portion 1 is of a T-shaped structure, the body portion 3 is of a cylindrical structure, and the tail portion 4 is of a curved-blade tooth-shaped structure, as shown in fig. 6.

The handle part 1, the connecting part 2 and the body part 3 are made of stainless steel, the tail part 4 is made of alloy steel, and the handle part 1 is a force detachable device. The length of the connecting part 2 is 1.5cm, and the inner diameter is 4.5 mm; the outer diameter is 6.5 mm; the length of the body part 3 is 21cm, the inner diameter is 4.5mm, and the outer diameter is 5.5 mm; the tail part 4 is designed in a curved knife tooth shape, and the length is 2 mm.

In order to prevent the sudden falling of the body from entering the vertebral canal during the operation and improve the safety of the operation, as shown in fig. 4 and 5, a depth limiting part 5 is arranged at one end of the body part 3 close to the connecting part, the depth limiting part 5 is of a unique design and comprises a depth limiting hole 5-1, a depth limiting lantern ring 5-2 and a depth limiting nut 5-3, the depth limiting hole 5-1 is arranged on the body part 3, the distance between the depth limiting hole 5-1 and the connecting part 2 is 5mm, the diameter of each depth limiting hole 5-1 is 2mm, and the interval distance is 3mm, and the total number is 4. The depth-limiting lantern ring 5-2 is provided with a threaded hole and is sleeved on the body part 3, and the depth-limiting nut 5-3 is matched with the threaded hole of the depth-limiting lantern ring 5-2. The depth limiting lantern ring 5-2 can slide along the body part 3, and has an outer diameter of 1.0cm, an inner diameter of 5.5mm and a thickness of 5 mm; the depth limiting nut 5-3 is designed in a T shape, the diameter of an exposed part is 5mm, the inner diameter of the exposed part enters the depth limiting lantern ring is 2mm, and the length of the exposed part is 5 mm. According to the actual needs of the operation, the position of the depth limiting lantern ring is adjusted by sliding, then a depth limiting hole is aligned, then the depth limiting nut is screwed, and the depth limiting nut at the moment passes through the threaded hole of the depth limiting lantern ring to reach the position of the depth limiting hole, so that the fixation is realized. When the somatic part stretched into the canalis spinalis, the depth that the somatic part got into the canalis spinalis can be restricted to the limit dark nut for bone removal link has had the quantization standard, and accurate safe decompression can be realized to unique limit dark device.

the embodiment provides a dedicated in-lens trepan device of backbone scope big passageway system, can solve the problem of big passageway system vertebral canal decompression, lays the big passageway after, can put into this device under looking directly, then gradually rubs off vertebral plate sclerotin and carries out the vertebral plate line and decompression, has improved the security and the accurate nature of operation greatly.

finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.