CN114081573A

CN114081573A - Propelling scraper

Info

Publication number: CN114081573A
Application number: CN202111282055.2A
Authority: CN
Inventors: 李振宙; 樊国平; 仇万裕; 刘治辉; 缪国帅
Original assignee: Beijing Fule Science & Technology Development Co ltd
Current assignee: Beijing Fule Science & Technology Development Co ltd
Priority date: 2020-11-14
Filing date: 2020-11-14
Publication date: 2022-02-25
Anticipated expiration: 2040-11-14
Also published as: CN114469248A; CN112450997B; CN114098911A; CN112450997A

Abstract

The application relates to the field of medical equipment, in particular to a propelling scraper. A push scraper comprises a fourth operating rod and a cutter formed at one end of the fourth operating rod, wherein the fourth operating rod is cylindrical, and a fifth cutting edge is machined at one end, far away from the fourth operating rod, of the cutter; a third accommodating space for accommodating residual intervertebral discs is formed inside the cutter and at one end of the fourth operating rod close to the cutter; the external diameter of cutting knife equals the external diameter of fourth action bars, the internal diameter of cutting knife is less than the internal diameter of fourth action bars, the junction of cutting knife and fourth action bars is formed with the ladder face. The fifth cutting edge cuts off the residual intervertebral disc connected with the vertebral body, and the removed residual intervertebral disc enters the third accommodating space along the step surface and is taken out of the body along with the step surface. The step surface blocks the residual intervertebral disc entering the third accommodating space, so that the residual intervertebral disc is prevented from sliding off from the third accommodating space, and the cleaning efficiency and the cleaning effect are improved.

Description

Propelling scraper

Technical Field

The application relates to the field of medical equipment, in particular to a propelling scraper.

Background

At present, with the aging of social population, the degenerative change of the spine tends to rise year by year, and serious symptoms such as herniated intervertebral disc and the like are often treated by operations such as intervertebral fusion. During operation treatment, a doctor firstly needs to enable instruments to enter an intervertebral space, process protruded and prolapsed intervertebral discs, clean pathological intervertebral discs and establish an implantation space of the fusion device, the traditional intervertebral foramen endoscopic fusion surgical instruments are various, such as reamers, curettes, bone contusions, rongeurs and the like, the proper instruments are selected to be matched and used according to needs, blind operation is carried out when each instrument is used, and nerves and dura mater are easily damaged under the blind operation.

At present, along with the popularization of minimally invasive surgery under an intervertebral foramen mirror, when the surgery is carried out, instruments for fusion surgery under the intervertebral foramen mirror generally need to be inserted into a sleeve of the intervertebral foramen mirror for use, the diameter of a rod part of the instrument is limited by the mode, the size of the surgical instrument is also limited, the intervertebral disc removal speed is also slow, the efficiency of intervertebral disc treatment in the surgery is not high, the surgery time of doctors is greatly prolonged, the fatigue work of the doctors is caused, and the risk index of the surgery is increased.

Disclosure of Invention

In order to improve operation efficiency and efficiently clean residual intervertebral discs between adjacent vertebral bodies, the application provides a propelling scraper.

The application provides a propulsion scraper adopts following technical scheme:

a push scraper comprises a fourth operating rod and a cutter formed at one end of the fourth operating rod, wherein the fourth operating rod is cylindrical, and a fifth cutting edge is machined at one end, far away from the fourth operating rod, of the cutter; a third accommodating space for accommodating residual intervertebral discs is formed inside the cutter and at one end of the fourth operating rod close to the cutter; the external diameter of cutting knife equals the external diameter of fourth action bars, the internal diameter of cutting knife is less than the internal diameter of fourth action bars, the junction of cutting knife and fourth action bars is formed with the ladder face.

By adopting the technical scheme, when the residual intervertebral discs are cleaned, a doctor holds the operating rod by hand and inserts the cutting knife into the space between adjacent vertebral bodies, the fifth cutting edge cuts off the residual intervertebral discs connected with the vertebral bodies along with the insertion of the cutting knife, and meanwhile, the removed residual intervertebral discs enter the third accommodating space along the stepped surface and are taken out of the body; then, the doctor discharges the residual intervertebral disc in the third accommodating space from the end of the operating rod far away from the cutting knife by using a curette or by using the characteristic that the operating rod is a hollow cylinder, so that the cutting knife can be conveniently used continuously next time; the ladder face that sets up can block the remaining intervertebral disc that enters into in the third accommodation space, and what be convenient for make most remaining intervertebral disc can be stable stops in the third accommodation space to avoided the possibility that the remaining intervertebral disc slided into adjacent intervertebral disc in the third accommodation space, improved cleaning efficiency and clearance effect.

Preferably, the thickness of the cutter is gradually increased from one end far away from the fourth operating rod to one end close to the fourth operating rod, so that the inner wall of the cutter forms a guide surface for the intervertebral disc residues to enter.

By adopting the technical scheme, the intervertebral disc residues are smoothly guided into the third accommodating space under the action of the guide surface by gradually increasing the thickness of the cutting knife.

Preferably, a cleaning hole communicated to the third accommodating space is formed in the outer wall of the fourth operating rod.

Through adopting above-mentioned technical scheme, set up the clearance hole and make can more conveniently clear up the residue in the third accommodation space through the clearance hole.

Preferably, two fourth positioning portions are formed in the side wall of the fourth operating rod, the two fourth positioning portions are located on two opposite sides of the fourth operating rod respectively, and each fourth positioning portion is formed at one end, away from the fourth operating rod, of the cutting knife and extends to one end, close to the cutting knife, of the fourth operating rod.

By adopting the technical scheme, when the cutting knife is inserted between two adjacent vertebral bodies, the two vertebral bodies are respectively abutted against the two fourth positioning parts of the fourth operating rod, so that the cutting knife is prepositioned, and a doctor can clearly know the insertion position of the cutting knife.

Preferably, a plurality of fourth scale marks are arranged on the fourth operating rod at intervals along the length direction of the fourth operating rod, and the fourth scale marks are located at one end, far away from the cutting knife, of the fourth operating rod.

Through adopting above-mentioned technical scheme, set up the fourth scale mark and make the doctor carry out real-time understanding to the length that the fourth action bars stretched into, the convenience is to propelling the accurate control of scraper.

Preferably, one end of the fourth operating rod, which is far away from the cutting knife, is fixedly connected with a fourth handle.

Through adopting above-mentioned technical scheme, set up the fourth handle and conveniently operate the propulsion scraper.

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

1. the fifth cutting edge cuts off the residual intervertebral disc connected with the vertebral body, and the removed residual intervertebral disc enters the third accommodating space along the step surface and is taken out of the body along with the step surface. The step surface blocks the residual intervertebral disc entering the third accommodating space, so that the residual intervertebral disc is prevented from sliding off from the third accommodating space, and the cleaning efficiency and the cleaning effect are improved.

Drawings

FIG. 1 is a schematic view of a pusher blade configuration;

FIG. 2 is a schematic view of the structure of the pusher blade from another perspective;

fig. 3 is a schematic partial cross-sectional view of a stepped surface on a pusher blade.

Description of reference numerals: 41. a fourth operating lever; 411. a fourth positioning portion; 412. a fourth tick mark; 413. a fourth handle; 414. cleaning the holes; 42. cutting; 421. a fifth cutting edge; 422. a guide surface; 43. a third accommodating space; 44. a step surface.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application provides a propelling scraper.

Referring to fig. 1, the push scraper includes a fourth operating lever 41 and a cutting blade 42 fixed to one end of the fourth operating lever 41, wherein the cutting blade 42 is integrally provided with the fourth operating lever 41 to increase the connection strength between the cutting blade 42 and the fourth operating lever 41, and the integral arrangement of the cutting blade 42 and the fourth operating lever 41 can prevent the operation from being affected by the connection point.

Referring to fig. 2, the cutter 42 is formed in a cylindrical shape as a whole, and a fifth cutting blade 421 is formed at an end of the cutter 42 remote from the fourth operating lever 41, and specifically, the thickness of the cutter 42 gradually increases from the end remote from the fourth operating lever 41 to the end close to the fourth operating lever 41, so that a guide surface 422 into which the disc debris enters is formed on the inner wall of the cutter 42. When the fourth operating rod 41 is operated to drive the cutting knife 42 to extend into the space between two adjacent vertebral bodies, the cutting knife 42 will perform deep cleaning on the residual intervertebral disc between two adjacent vertebral bodies, and the cleaned residual intervertebral disc will reach the inside of the cutting knife 42 along the inner wall of the cutting knife 42, i.e. along the guide surface 422, and finally be taken out of the human body.

Referring to fig. 2 and 3, the fourth operating rod 41 is generally cylindrical, and an inner hole of the fourth operating rod 41 is inserted with a borescope, so that a doctor can observe the surgical procedure in real time through the borescope when the remaining intervertebral disc is cleaned by operating the cutter 42. Wherein, the interior of the cutter 42 and one end of the fourth operating rod 41 close to the cutter 42 jointly form a third accommodating space 43 for accommodating the residual intervertebral disc.

Referring to fig. 3, the wall thickness of the cutter 42 is greater than that of the fourth operating lever 41, and more particularly, the outer diameters of the cutter 42 and the fourth operating lever 41 are the same, and the inner diameter of the cutter 42 is smaller than that of the fourth operating lever 41, so that the junction of the cutter 42 and the fourth operating lever 41 forms a stepped surface 44, and the stepped surface 44 is located on the inner wall of the junction of the cutter 42 and the fourth operating lever 41. The residual intervertebral disc cut by the cutter 42 reaches the third accommodating space 43 along the guide surface 422 of the cutter 42, and is then blocked by the stepped surface 44 between the cutter 42 and the fourth operating rod 41, so that the residual intervertebral disc is prevented from sliding from the third accommodating space 43. Meanwhile, the wall thickness of the cutter 42 is larger than that of the fourth operating rod 41, so that the overall strength of the cutter 42 can be increased, and the bearing strength is higher.

Referring to fig. 2, two fourth positioning portions 411 are disposed on a side wall of the fourth operating rod 41, the two fourth positioning portions 411 are respectively located on two opposite sides of the fourth operating rod 41, and each fourth positioning portion 411 is disposed at an end of the cutting knife 42 away from the fourth operating rod 41 and extends to an end of the fourth operating rod 41 close to the cutting knife 42. When the cutting knife 42 is inserted between two adjacent vertebral bodies, the two vertebral bodies abut against the two fourth positioning portions 411 of the fourth operating lever 41, respectively, so that the cutting knife 42 is prepositioned, and a doctor can clearly know the insertion position of the cutting knife 42.

Meanwhile, in order to facilitate a doctor to know the extending length of the fourth operating rod 41 in real time, a plurality of fourth scale marks 412 are arranged on the fourth operating rod 41 at intervals along the length direction of the fourth operating rod 41, and the fourth scale marks 412 are located at one end of the fourth operating rod 41 away from the cutting knife 42. The specific arrangement of the fourth graduation lines 412 is the same as that of the first graduation lines 112, and will not be described herein again.

Referring to fig. 2, a fourth handle 413 is fixedly connected to an end of the fourth operating rod 41 away from the cutting knife 42, and the fourth handle 413 may be directly fixedly connected to a side wall of the fourth operating rod 41, so as to prevent the fourth handle 413 from closing an inner hole of the fourth operating rod 41 and affecting a normal mounting operation of the borescope. Of course, the fourth handle 413 may also be directly fixed to the end of the fourth operating rod 41 away from the cutting knife 42, and when the fourth handle 413 is fixed to the end of the fourth operating rod 41 away from the cutting knife 42, an avoiding hole (not shown in the figure) communicating with the inner hole of the fourth operating rod 41 needs to be formed in the fourth handle 413 for the borescope to pass through.

Referring to fig. 2 and 3, in order to facilitate the doctor to clean the residual intervertebral disc in the third accommodating space 43 after using the cutting knife 42, a cleaning hole 414 communicating with the third accommodating space 43 is formed on the outer wall of the fourth operating rod 41, and the cleaning hole 414 may be directly formed at the fourth positioning portion 411. When the residual intervertebral disc in the third accommodating space 43 needs to be cleaned, a doctor can clean the residual intervertebral disc in the third accommodating space 43 directly through the cleaning hole 414, and the cleaning is more convenient.

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

1. A propelling scraper comprises a fourth operating rod (41) and a cutting knife (42) formed at one end of the fourth operating rod (41), wherein the fourth operating rod (41) is cylindrical, and a fifth cutting edge (421) is machined at one end, far away from the fourth operating rod (41), of the cutting knife (42); a third accommodating space (43) for accommodating residual intervertebral discs is formed in the cutter (42) and at one end of the fourth operating rod (41) close to the cutter (42); the external diameter of cutting knife (42) equals the external diameter of fourth action bars (41), the internal diameter of cutting knife (42) is less than the internal diameter of fourth action bars (41), the junction of cutting knife (42) and fourth action bars (41) is formed with the ladder face.

2. The push scraper of claim 1 wherein: the thickness of the cutting knife (42) is gradually increased from one end far away from the fourth operating rod (41) to one end close to the fourth operating rod (41), so that the inner wall of the cutting knife (42) forms a guide surface (422) for the intervertebral disc residues to enter.

3. The push scraper of claim 1 wherein: the outer wall of the fourth operating rod (41) is provided with a cleaning hole (414) communicated with the third accommodating space (43).

4. The push scraper of claim 1 wherein: two fourth positioning parts (411) are arranged on the side wall of the fourth operating rod (41), the two fourth positioning parts (411) are respectively located on two opposite sides of the fourth operating rod (41), and each fourth positioning part (411) is arranged at one end, far away from the fourth operating rod (41), of the cutting knife (42) and extends to one end, close to the cutting knife (42), of the fourth operating rod (41).

5. The push scraper of claim 1 wherein: a plurality of fourth scale marks (412) are arranged on the fourth operating rod (41) at intervals along the length direction of the fourth operating rod, and the fourth scale marks (412) are positioned at one end, far away from the cutting knife (42), of the fourth operating rod (41).

6. The push scraper of claim 1 wherein: a fourth handle (413) is fixedly connected to one end, far away from the cutting knife (42), of the fourth operating rod (41).

7. The push scraper of claim 6 wherein: and an avoiding hole communicated with the inner hole of the fourth operating rod (41) is formed in the fourth handle (413).