CN114098911A

CN114098911A - Rotary scraper

Info

Publication number: CN114098911A
Application number: CN202111281661.2A
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: 2022-03-01
Also published as: CN114469248A; CN112450997B; CN114081573A; CN112450997A

Abstract

The application relates to the field of medical equipment, in particular to a rotary scraper. A rotary scraper comprises an operating rod and a cutter head fixedly connected to one end of the operating rod; the reamer comprises a connecting plate fixedly connected between the operating rod and the take-out plate and third cutting edges machined on two opposite sides of the connecting plate, the two connecting plates are arranged, the connecting plate is an inner concave cylinder wall, and two ends of each third cutting edge are respectively connected with the take-out plate and the operating rod; a first containing space for containing nucleus pulposus is formed between the carrying-out plate and the two connecting plates. When clearing up the nucleus pulposus, at first stretch into the fibrous ring with the reamer, then rotate the action bars and drive the reamer rotation, the third cutting edge rubs the nucleus pulposus, because the surface of reamer and fibrous ring are in the state of laminating mutually and the existence of first accommodation space, consequently the nucleus pulposus will enter into first accommodation space after being rubbed, and the operation is more high-efficient.

Description

Rotary scraper

Technical Field

The application relates to the field of medical equipment, in particular to a rotary 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 the efficiency of the operation and clean the nucleus pulposus fast, the application provides a rotary scraper.

The application provides a rotatory scraper adopts following technical scheme:

a rotary scraper comprises an operating rod and a cutter head fixedly connected to one end of the operating rod; the reamer head comprises a reamer of a rotary scraper, one end of the reamer, which is far away from the operating rod, is fixedly connected with a take-out plate, the reamer comprises a connecting plate fixedly connected between the operating rod and the take-out plate and third cutting edges machined on two opposite sides of the connecting plate, the number of the connecting plates is two, the connecting plate is an inner concave cylinder wall, and two ends of each third cutting edge are respectively connected with the take-out plate and the operating rod; a first accommodating space for accommodating nucleus pulposus is formed between the carrying-out plate and the two connecting plates.

By adopting the technical scheme, the reamer head is an olive-shaped annular frame, the cross sections of all parts forming the frame are flat, when nucleus pulposus is cleaned, the reamer head is firstly inserted into the fibrous ring, then the rotating handle drives the reamer head to synchronously rotate, the nucleus pulposus can be ground under the action of the cutting edge, and the ground nucleus pulposus cannot be accommodated due to the fact that the cross sections of all parts forming the annular frame are flat, so that the reamer head needs to be taken out, and the cleaning work of the ground nucleus pulposus is realized by using the curette. When the nucleus pulposus is cleaned, the reamer firstly extends into the fibrous ring, then the operating rod is rotated to drive the reamer to rotate, the third cutting edge minces the nucleus pulposus, and the nucleus pulposus can enter the first accommodating space after being minced due to the fact that the outer surface of the reamer and the fibrous ring are in a state of being attached to each other and the first accommodating space exists. Meanwhile, as the first accommodating space is a three-dimensional space formed between the take-out plate and the two connecting plates, and the two connecting plates are symmetrically arranged along the axis of the operating rod and are inner concave cylinder walls, more and more nucleus pulposus can enter the first accommodating space along with the rotation of the reamer, and can be extruded towards the two connecting plates and stably stay in the first accommodating space; simultaneously because the nucleus pulposus that rubs has certain stickness, consequently the nucleus pulposus that is in first accommodation space intermediate position also can be stable stop in first accommodation space, the nucleus pulposus that enters into in first accommodation space all can be stable stop in first accommodation space promptly, such mode of operation is more high-efficient.

Preferably, one end of the second operating rod, which is close to the connecting plate, is provided with two second positioning portions, and the two second positioning portions are respectively located on two opposite sides of the second operating rod.

By adopting the technical scheme, the two vertebral bodies at the two ends of the intervertebral disc are respectively abutted against the two second positioning parts on the second operating rod in the operation process, and a doctor can clearly know the inserted position.

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

By adopting the technical scheme, the doctor can control the length of the second operating rod penetrating into the human body in real time through the second scale marks, so that the subsequent operation work is facilitated.

Preferably, the second operating lever has a cylindrical shape with a hollow interior.

Through adopting above-mentioned technical scheme, when the operation, can be through installing the hole mirror inside the second action bars, the doctor of being convenient for is convenient for to the real-time observation of operation process, and it is more convenient to operate, has also reduced the risk of operation.

Preferably, one end of the second operating rod, which is far away from the reamer, is fixedly connected with a second handle.

Through adopting above-mentioned technical scheme, make when operating the reamer more convenient through setting up the second handle.

Preferably, the second handle is provided with an avoiding hole for the hole mirror to pass through and be communicated with the inner hole of the second operating rod.

Through adopting above-mentioned technical scheme, set up on the second handle and dodge the hole and make the entering that can not disturb the hole mirror.

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

1. when clearing up the nucleus pulposus, in the nucleus pulposus of garrulous gets into first accommodation space, because the nucleus pulposus of rubbing has certain stickness, consequently the nucleus pulposus that is in first accommodation space intermediate position also can be stable stop in first accommodation space, make things convenient for more high-efficient when taking out the nucleus pulposus.

Drawings

FIG. 1 is a schematic view of a rotary doctor blade;

fig. 2 is a schematic view of another perspective of the rotary doctor blade.

Description of reference numerals: 21. a second operating lever; 211. a second positioning portion; 212. a second scale mark; 213. a second handle; 22. taking the plate out; 23. a reamer; 231. a connecting plate; 232. a third cutting edge; 24. the first accommodating space.

Detailed Description

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

The embodiment of the application discloses a rotary scraper.

As shown in fig. 1 and 2, the rotary scraper includes a second operating rod 21, a take-out plate 22 at one end of the second operating rod 21 for mincing and taking out the nucleus, and a connecting plate 231 fixedly connected between the second operating rod 21 and the take-out plate 22, wherein a first accommodating space 24 for accommodating the nucleus is formed between the take-out plate 22 and the two connecting plates 231. Specifically, the second operating rod 21, the connecting plate 231 and the carrying-out plate 22 are integrally arranged, so that the overall connecting strength of the rotary scraper is high, and the influence on the operation process caused by the generation of the connecting point can be avoided due to the integral arrangement of the second operating rod, the connecting plate 231 and the carrying-out plate.

As shown in fig. 1 and 2, at least two connection plates 231 are provided, and the connection plates are inner concave walls. In the present application, two connecting plates 231 are located at the same end of the second operating rod 21 and at two opposite sides of the second operating rod 21, and the leading-out plate 22 is located at one end of the two leading-out plates 22 away from the second operating rod 21. The two opposite sides of each connecting plate 231 are respectively provided with a third cutting edge 232, the connecting plate 231 and the third cutting edges 232 arranged on the connecting plate 231 jointly form a reamer 23 for mincing nucleus, and two ends of each third cutting edge 232 are respectively connected with the second operating rod 21 and the take-out plate 22. When the taking-out plate 22 is inserted into the intervertebral disc by rotating, the end of the third cutting edge 232 close to the taking-out plate 22 can directly grind the nucleus pulposus without influencing the insertion of the taking-out plate 22.

As shown in fig. 1 and 2, the second operating rod 21 is a hollow cylinder, and a borescope can be inserted into an inner hole of the second operating rod 21, so that a doctor can observe the operation process in real time through the borescope in the process of mincing the nucleus pulposus.

Meanwhile, in order to facilitate the doctor to control the position of the reamer 23 penetrating into the human body in real time, two second positioning portions 211 are disposed at one end of the second operating rod 21 close to the connecting plate 231, and the two second positioning portions 211 are respectively located at two opposite sides of the second operating rod 21. Specifically, the two second positioning portions 211 are disposed at positions where the second operating lever 21 is not fixedly connected to the connecting plate 231, so that the second positioning portions 211 are disposed without interfering with the connecting plate 231. When the reamer is used, the reamer 23 is directly rotated to face a human body and inserted into the human body, one end, facing the carrying-out plate 22, of the third cutting edge 232 is firstly contacted with an intervertebral disc and rubs nucleus pulposus, and then the third cutting edge extends along with the continuation of the second operating rod 21 until two vertebral bodies at two ends of the intervertebral disc are respectively abutted to two second positioning parts 211 on the second operating rod 21, so that a doctor can clearly know the inserted position of the reamer 23.

As shown in fig. 1 and 2, a plurality of second scale marks 212 are arranged on the second operating rod 21 at intervals along the length direction thereof, and the second scale marks 212 are located at one end of the second operating rod 21 away from the reamer 23, so that a doctor can control the length of the second operating rod 21 penetrating into a human body in real time, and subsequent operation is facilitated. The specific arrangement of the second scale mark 212 is the same as that of the first scale mark 112, and will not be described herein.

As shown in fig. 1 and 2, a second handle 213 is fixed to an end of the second operating rod 21 away from the reamer 23, and the second handle 213 may be fixed to a side wall of the second operating rod 21 so as not to close an inner hole of the second operating rod 21 and affect the normal mounting operation of the hole mirror. It is understood that the second handle 213 may also be fixed to an end of the second operating rod 21 away from the reamer 23, and when the second handle 213 is fixed to an end of the second operating rod 21 away from the reamer 23, an avoiding hole (not shown) for the hole mirror to pass through and communicate with the inner hole of the second operating rod 21 needs to be formed in the second handle 213.

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 rotary scraper is characterized in that: comprises an operating rod and a cutter head fixedly connected at one end of the operating rod; the cutter head comprises a reamer (23) of a rotary scraper, one end, far away from the operating rod, of the reamer (23) is fixedly connected with a take-out plate (22), the reamer (23) comprises a connecting plate (231) fixedly connected between the operating rod and the take-out plate (22) and third cutting edges (232) machined on two opposite sides of the connecting plate (231), two connecting plates (231) are arranged, the connecting plate (231) is an inner concave cylinder wall, and two ends of each third cutting edge (232) are respectively connected with the take-out plate (22) and the operating rod; a first containing space (24) used for containing nucleus pulposus is formed between the carrying-out plate (22) and the two connecting plates (231).

2. The rotary scraper blade according to claim 1, characterized in that: two second positioning parts (211) are arranged at one end, close to the connecting plate (231), of the second operating rod (21), and the two second positioning parts (211) are respectively located on two opposite sides of the second operating rod (21).

3. The rotary scraper blade according to claim 1, characterized in that: a plurality of second scale marks (212) are arranged on the second operating rod (21) at intervals along the length direction of the second operating rod, and the second scale marks (212) are located at one end, far away from the reamer (23), of the second operating rod (21).

4. The rotary scraper blade according to claim 1, characterized in that: the second operating lever (21) is in the shape of a cylinder with a hollow interior.

5. The rotary scraper blade according to claim 1, characterized in that: one end of the second operating rod (21) far away from the reamer (23) is fixedly connected with a second handle (213).

6. The rotary scraper blade according to claim 5, wherein: and the second handle (213) is provided with an avoiding hole for the hole mirror to pass through and be communicated with the inner hole of the second operating rod (21).