CN217090834U - Single-side scraping processor for expandable intervertebral disc end plate - Google Patents
Single-side scraping processor for expandable intervertebral disc end plate Download PDFInfo
- Publication number
- CN217090834U CN217090834U CN202120385336.XU CN202120385336U CN217090834U CN 217090834 U CN217090834 U CN 217090834U CN 202120385336 U CN202120385336 U CN 202120385336U CN 217090834 U CN217090834 U CN 217090834U
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- scraper
- ejector pin
- unilateral
- intervertebral disc
- pin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
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- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Vascular Medicine (AREA)
- Prostheses (AREA)
Abstract
The utility model provides a treater is scraped to intervertebral disc endplate unilateral that can open, the scheme of adoption is: including sleeve pipe, ejector pin, handle and a unilateral scraper, be provided with the cavity along its longitudinal direction in the sleeve pipe, the ejector pin penetrates in the sheathed tube cavity and can follow the cavity and remove, the front portion of ejector pin is passed through link assembly and is connected with the unilateral scraper, the rear portion of ejector pin is provided with the screw thread to be connected with the nut on the rear portion screw thread of ejector pin, the nut is installed on the handle. Can drive the ejector pin through the rotating nut and move forward and retreat, and then realize opening and withdrawing of unilateral scraper, can control the unilateral scraper degree of opening through the displacement of control ejector pin, and then realize the control to the cutting depth, avoid excessively excising.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a treater is scraped to intervertebral disc endplate unilateral that can open.
Background
The intervertebral disc fusion is called as the ultimate treatment means for treating intervertebral disc diseases, and is to fuse the upper vertebral body and the lower vertebral body of a diseased intervertebral disc, wherein the treatment method is to place a fusion device made of metal or other implantable human body materials in a focus intervertebral space to support the upper vertebral body and the lower vertebral body, then to implant bones, and finally to fuse the upper vertebral body and the lower vertebral body. The success or failure of this procedure is largely due to the fact that the upper and lower endplates are treated to meet the fusion requirements, i.e., the cortical bone is scraped off, and the cortical bone is protected from being removed too much, which affects the strength of the vertebral body.
The spoon-shaped curette and the formed curette which are clinically used at present are integrated, namely the curette is integrally connected with the rod body, so that hard curettage is realized, one hard curettage is easy to cut off the end plate too much, and the other hard curettage is insufficient in size and incomplete in curettage. This is the current state of the art.
Therefore, in view of the current situation of the prior art, the development of a deployable single-sided scraping processor for intervertebral endplates is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a single-side scraping processor of an expandable intervertebral disc endplate.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: the utility model provides a treater is scraped to intervertebral disc endplate unilateral that can open, includes sleeve pipe, ejector pin and a unilateral scraper, be provided with the cavity along its longitudinal direction in the sleeve pipe, the ejector pin penetrates in the sheathed tube cavity and can follow the cavity and remove, the anterior portion of ejector pin is connected with the unilateral scraper through link assembly, the rear portion of ejector pin is provided with the screw thread to be connected with the nut on the rear portion screw thread of ejector pin. Can drive the ejector pin through the rotating nut and move forward and retreat, and then realize opening and withdrawing of unilateral scraper, can control the unilateral scraper degree of opening through the displacement of control ejector pin, and then realize the control to the cutting depth, avoid excessively excising.
Furthermore, the front part of the sleeve is provided with a scraper joint, and the single-side scraper is hinged on the scraper joint. The connection strength of the single-side scraper is guaranteed, and the ejector rod is more beneficial to driving the single-side scraper to move.
Furthermore, the connecting rod assembly comprises a pin shaft and a supporting arm, a push head is arranged at the front part of the ejector rod, the push head penetrates through the scraper joint and then is hinged to one end of the supporting arm through the pin shaft, and the other end of the supporting arm is hinged to the single-side scraper. The back-and-forth movement of the mandril is converted into the up-and-down movement of the single-side scraper.
Furthermore, the front part of the single-side scraper is provided with an upward-bent cutting edge, the cutting edge is provided with a radian, and the radian used for forming a matched radian with the intervertebral end plate is formed, so that the scraping of the intervertebral end plate is facilitated, and the cutting edge is prevented from cutting into cartilage too deeply.
Furthermore, the rear part of the single-side scraper is hinged to the scraper joint through a pin shaft, a hinge groove is formed in the lower part of the single-side scraper, the front end of the supporting arm is provided with a radian, and the front end of the supporting arm is installed in the hinge groove. Simple structure, the assembly of being convenient for does benefit to the drive.
Further, a handle is arranged at the rear part of the sleeve. Is convenient for holding to operate.
Furthermore, the nut is rotatably arranged on the handle, the rear part of the ejector rod penetrates through the nut, the handle is provided with a pin, the pin is positioned at the rear part of the nut, and the pin is inserted into the ejector rod and limits the rotation of the ejector rod. The push rod can move along a straight line without rotating by screwing the nut.
Furthermore, the cutting edge is of a row of tooth-shaped structures. So as to facilitate the scraping of the scraper on the intervertebral end plate.
According to the technical scheme, the utility model has the advantages of it is following:
the scheme provides a strutting intervertebral disc endplate unilateral scraping processor, the unilateral scraper is smaller than an intervertebral space in size in a contraction state, after the unilateral scraper is placed in the intervertebral space, a nut on a handle is rotated to drive an ejector rod to move forwards, a pushing head at the front end of the ejector rod drives the unilateral scraper to be propped open through a hinge structure until a cutting edge is contacted with an endplate, a doctor determines the scraping depth through screwing the nut, the handle is controlled to move forwards and backwards, the scraping is completed, the actions are repeated after the lateral movement is completed, the whole intervertebral disc can be completely processed, the cutting edge is toothed and has a radian similar to that of the endplate, the depth of the cutting edge cutting into cartilage does not exceed the height of the tooth, the scraping position is controlled by the doctor, the scraping can be completed through several times of operation, and the scraped scrap tissues are sucked out to implant bones and install a fusion device.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of an embodiment of the present invention.
Fig. 2 is a perspective view of a front section of an embodiment of the present invention.
Fig. 3 is a schematic view showing a state of the scraper not being opened according to the embodiment of the present invention.
Fig. 4 is a schematic view showing the radian of the cutting edge according to the embodiment of the present invention.
Fig. 5 is a schematic structural view of a rear section according to an embodiment of the present invention.
In the figure, the scraper comprises a support arm 1, a support arm 2, a single-side scraper 3, a scraper joint 4, a mandril 5, a sleeve 6, a pin shaft 7, a nut 8, a pin 9 and a handle.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
As shown in fig. 1 to 5, the utility model provides a treater is scraped to intervertebral disc endplate unilateral that can open, including sleeve pipe 5, ejector pin 4, handle 9 and a unilateral scraper 2, be provided with the cavity along its longitudinal direction in the sleeve pipe 5, scraper joint 3 is installed to the front end of sleeve pipe 5, handle 9 is installed to the rear end of sleeve pipe 5, ejector pin 4 penetrates in sleeve pipe 5's the cavity and can follow the cavity and remove, ejector pin 4's front portion is passed through link assembly and is connected with unilateral scraper 2, unilateral scraper 2 is located scraper joint 3's the place ahead, wherein, link assembly includes round pin axle 6 and support arm 1, ejector pin 4's front portion is provided with cutting head 4, cutting head 4 passes behind the scraper joint 3 and articulates through the one end of round pin axle 6 with support arm 1, support arm 1's the other end is articulated with unilateral scraper 2. Specifically, the rear part of the single-side scraper 2 is hinged with the scraper joint 3 through a pin shaft 6, the lower part of the single-side scraper 2 is provided with a hinge groove, the front end of the support arm 1 has a radian, and the front end of the support arm 1 is installed in the hinge groove.
The front part of the single-side scraper 2 is provided with an upward-bent cutting edge which is of a row of tooth-shaped structures, so that a radian matched with the intervertebral end plate is formed, the intervertebral end plate is favorably scraped, and the cutting edge is prevented from cutting into cartilage too deeply.
The further improvement scheme is that the rear part of the ejector rod 4 is provided with threads, the threads at the rear part of the ejector rod 4 are connected with a nut 7, the nut 7 is rotatably arranged on a handle 9, the rear part of the ejector rod 4 penetrates through the nut 7, a pin 8 is arranged on the handle 9, the pin 8 is positioned at the rear part of the nut 7, the pin 8 is inserted into the ejector rod 4 and limits the rotation of the ejector rod 4, and the ejector rod can move along a straight line without rotating by screwing the nut.
The structure and the working principle of the processor are as follows:
the size of the single-side scraper 2 is smaller than the intervertebral space in a contraction state, after the single-side scraper is placed in the intervertebral space, the nut 7 on the handle 9 is rotated to drive the ejector rod 4 to move forwards, the push head 4 at the front end of the ejector rod 4 drives the single-side scraper 2 to be spread through a hinge structure until the cutting edge is contacted with an end plate, a doctor determines the scraping depth by screwing the nut 7, the handle 9 is controlled to move forwards and backwards to complete scraping, the actions are repeated after the left and right movement, the whole intervertebral disc can be completely treated, the cutting edge is toothed and has a radian similar to that of the end plate, the cutting edge cutting depth cannot exceed the tooth height, the scraping position is controlled by the doctor, the scraping can be completed by several times of operation, and the scraped fragment tissue is sucked out to implant the bone and install the fusion device.
The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings (if any) are used to distinguish relative relationships in position, and are not necessarily qualitative. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a treater is scraped to intervertebral disc endplate unilateral that can open, characterized in that, includes sleeve pipe (5), ejector pin (4) and a unilateral scraper (2), be provided with the cavity along its longitudinal direction in sleeve pipe (5), ejector pin (4) penetrate in the cavity of sleeve pipe (5) and can follow the cavity and remove, the front portion of ejector pin (4) is connected with unilateral scraper (2) through link assembly, the rear portion of ejector pin (4) is provided with the screw thread to be connected with nut (7) on the rear portion screw thread of ejector pin (4).
2. The expandable single-sided scraping processor of intervertebral disc endplates according to claim 1, characterized in that the front part of the sleeve (5) is provided with a scraper joint (3), and the single-sided scraper (2) is hinged on the scraper joint (3).
3. The expandable single-sided scraping processor for intervertebral discs as claimed in claim 2, characterized in that the connecting rod component comprises a pin shaft (6) and a supporting arm (1), the front part of the mandril (4) is provided with a pushing head, the pushing head passes through the scraper joint (3) and then is hinged with one end of the supporting arm (1) through the pin shaft (6), and the other end of the supporting arm (1) is hinged with the single-sided scraper (2).
4. The expandable single scraping processor of intervertebral disc endplates of claim 3, wherein the anterior portion of the single scraper (2) has an upwardly curved cutting edge with a curvature.
5. The expandable single scraping processor of intervertebral disc endplates of claim 4, wherein the rear part of the single scraper (2) is hinged with the scraper joint (3) through a pin shaft (6), the lower part of the single scraper (2) is provided with a hinge groove, the front end of the supporting arm (1) has an arc, and the front end of the supporting arm (1) is installed in the hinge groove.
6. The expandable single-sided scraping processor of intervertebral disc endplates as claimed in claim 1, wherein the sleeve (5) is provided with a handle (9) at the rear.
7. The expandable single-sided scraping processor of intervertebral disc endplates of claim 6, wherein the nut (7) is rotatably mounted on a handle (9), the rear portion of the push rod passes through the nut, the handle (9) is mounted with a pin (8), the pin (8) is inserted into the push rod (4) and limits the rotation of the push rod (4).
8. The expandable single-sided scraping processor of a spinal disc endplate of claim 4 wherein said cutting edge is an array of teeth-like structures.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120385336.XU CN217090834U (en) | 2021-02-20 | 2021-02-20 | Single-side scraping processor for expandable intervertebral disc end plate |
| PCT/CN2021/111140 WO2022174560A1 (en) | 2021-02-20 | 2021-08-06 | Expandable intervertebral disc endplate unilateral scraping processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120385336.XU CN217090834U (en) | 2021-02-20 | 2021-02-20 | Single-side scraping processor for expandable intervertebral disc end plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217090834U true CN217090834U (en) | 2022-08-02 |
Family
ID=82575394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120385336.XU Active CN217090834U (en) | 2021-02-20 | 2021-02-20 | Single-side scraping processor for expandable intervertebral disc end plate |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN217090834U (en) |
| WO (1) | WO2022174560A1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6383188B2 (en) * | 2000-02-15 | 2002-05-07 | The Spineology Group Llc | Expandable reamer |
| CH700056B1 (en) * | 2008-12-12 | 2012-04-13 | Med Titan Spine Gmbh | Surgical instrument. |
| US20120271313A1 (en) * | 2011-04-21 | 2012-10-25 | Warsaw Orthopedic, Inc. | Long scraper tool for discectomy |
| CN202960658U (en) * | 2012-11-06 | 2013-06-05 | 天津正天医疗器械有限公司 | Bone scraping device for cervical vertebra and lumbar vertebra in bone surgery appliance |
| CN108852462A (en) * | 2018-09-21 | 2018-11-23 | 林浩 | A kind of flexible medical stings cutting tool |
| US11234716B2 (en) * | 2019-02-22 | 2022-02-01 | Globus Medical, Inc. | Methods and apparatus for performing discectomy |
| CN211862895U (en) * | 2019-10-31 | 2020-11-06 | 宁波华科润生物科技有限公司 | Minimally invasive intervertebral disc treatment tool |
| CN211883946U (en) * | 2020-01-09 | 2020-11-10 | 博能华医疗器械（北京）有限公司 | Intervertebral foramen mirror down variable angle flat file grinding device |
-
2021
- 2021-02-20 CN CN202120385336.XU patent/CN217090834U/en active Active
- 2021-08-06 WO PCT/CN2021/111140 patent/WO2022174560A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022174560A1 (en) | 2022-08-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Weiming Inventor after: Liu Zonghui Inventor before: Li Weiming Inventor before: Li Zonghui |