CN110652334A - Minimally invasive intervertebral disc treatment tool - Google Patents
Minimally invasive intervertebral disc treatment tool Download PDFInfo
- Publication number
- CN110652334A CN110652334A CN201911050423.3A CN201911050423A CN110652334A CN 110652334 A CN110652334 A CN 110652334A CN 201911050423 A CN201911050423 A CN 201911050423A CN 110652334 A CN110652334 A CN 110652334A
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- CN
- China
- Prior art keywords
- curette
- reamer
- minimally invasive
- traction rod
- intervertebral disc
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- A61B17/1659—Surgical rasps, files, planes, or scrapers
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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
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
-
- 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
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1671—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the spine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
- A61B2017/00261—Discectomy
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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
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
- A61B2017/0256—Joint distractors for the spine
Abstract
The invention relates to a minimally invasive intervertebral disc treatment tool, which consists of a reamer and a curette, wherein the reamer comprises a driving structure, a traction rod, an outer tube and blades; the curette comprises a driving structure, a traction rod, an outer tube and a curette head; the driving structure comprises a rotary block and a sliding block which are in threaded fit with each other, the near end of the traction rod is fixedly matched with the sliding block, and the far end of the traction rod is matched with the blade or the scraping head through a screw or a rivet; the tail parts of the blade and the scraping head are knife tails, and the limiting groove is in sliding fit with the knife tails; the driving structure drives the traction rod to move axially, and the blade or the scraping head can be unfolded and contracted under the action of the axial movement of the traction rod and the limiting groove on the outer tube. The minimally invasive intervertebral disc treatment tool comprises the reamer and the curette, wherein the reamer is used for treating nucleus pulposus and annulus fibrosus, and the curette is used for treating end plates, so that the minimally invasive intervertebral disc treatment tool is more targeted and improves the treatment effect; the far end of the tool is a height-adjustable structure, so that the intervertebral space can be expanded by the expanding reamer of the processing tool in the operation process, the operation expanding instruments and operation steps can be reduced, and the operation time is shortened.
Description
Technical Field
The invention relates to the field of spinal interbody fusion surgery, in particular to a minimally invasive intervertebral disc treatment tool.
Background
The Anterior Cruciate Ligament (ACL) is also called as an anterior cruciate ligament, and the spinal fusion operation has better curative effect on the aspect of treating the neck and waist pain and the instability of the neck and waist vertebrae, and is a conventional operation mode for treating degenerative disc diseases, spondylolisthesis and segmental instability of the spine. To achieve an acceptable spinal fusion procedure, a pre-treatment of the fusion device implantation using a disc handling tool, the existing disc is handled or removed.
With the development of medicine, fusion surgery performed under a minimally invasive channel is rapidly developed at present, but the development of corresponding surgical operation instruments is obviously delayed, so that some minimally invasive surgeries are time-consuming and long or inconvenient to operate. Most of the existing conventional operating instruments are of fixed structures, and the treatment tools can not pass through a minimally invasive working channel, even if the treatment tools can enter into the intervertebral space through the minimally invasive channel, the treatment efficiency, the treatment effect, the operation simplicity, the safety and the like can not be considered, and the intervertebral disc removal effect is influenced to the final fusion effect.
In order to overcome the above disadvantages, the present invention contemplates a minimally invasive intervertebral disc manipulation tool that includes an adjustable height reamer and an adjustable height curette.
Disclosure of Invention
The invention provides a minimally invasive intervertebral disc processing tool, aiming at solving the problem that the existing intervertebral disc processing tool cannot enter an intervertebral space through a minimally invasive working channel or even can enter the intervertebral space through the minimally invasive channel, but cannot give consideration to the aspects of processing efficiency, processing effect, simplicity and convenience in operation, safety and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a minimally invasive intervertebral disc treatment tool which consists of a reamer and a curette, wherein the reamer comprises a driving structure, a traction rod, an outer tube and blades; the curette comprises a driving structure, a traction rod, an outer tube and a curette head; the driving structure comprises a rotary block and a sliding block which are in threaded fit with each other, the near end of the traction rod is fixedly matched with the sliding block, and the far end of the traction rod is matched with the blade or the scraping head through screws or riveting; the tail parts of the blade and the scraping head are knife tails, and the limiting groove is in sliding fit with the knife tails; the driving structure drives the traction rod to move axially, and the blade or the scraping head can be unfolded and contracted under the action of the axial movement of the traction rod and the limiting groove on the outer tube.
Further, the reamer acts on the nucleus pulposus, annulus fibrosus and cartilage end plate within the intervertebral disc, and the curette acts on the cartilage end plate.
Furthermore, the reamer and the curette further comprise a base body and a holding block, and the rotating block is axially limited by the base body and the holding block.
Furthermore, the holding block is fixedly matched with the near end of the outer tube, and the limiting groove is positioned at the far end of the outer tube.
Furthermore, the rotary block is provided with scale marks, and the holding block is provided with a reference mark.
Further, a scale line is arranged on the outer tube.
Further, the proximal end of the base is fixedly engaged with the handle.
Furthermore, the number of the reamer blades is two, and the number of the curettes is one or two.
Compared with the prior art, the invention has the following advantages:
(1) the minimally invasive intervertebral disc treatment tool can meet minimally invasive surgery through the operation working channel with the diameter of less than 7mm, and the minimal access enables the tool to be wide in adaptation range and small in harm to patients.
(2) The reamer and the distal end of the curette of the minimally invasive intervertebral disc processing tool are of adjustable height structures, so that intervertebral space can be expanded by the expanding reamer of the processing tool in the operation process, the operation expanding instruments and operation steps are reduced, the operation time is shortened, and the operation efficiency is improved; simultaneously, the device meets the requirements of patients with different intervertebral disc sizes and heights, reduces the specifications of surgical instruments and simplifies the operation.
(3) The minimally invasive intervertebral disc treatment tool comprises a reamer and a curette, wherein the reamer is used for treating nucleus pulposus and annulus fibrosus, and the curette is used for treating an end plate, so that the intervertebral disc treatment is more targeted, and the surgical treatment effect is improved.
(4) The minimally invasive intervertebral disc treatment tool is a manual operation instrument on the basis of ensuring minimally invasive implantation, treatment efficiency and treatment effect, and ensures the safety of operation.
(5) The opening height of the minimally invasive intervertebral disc treatment tool and the length of the tool exposed outside the working sleeve in the intervertebral disc can be controlled by the near-end scale, so that the controllability of the operation is improved, and the safety of the operation is ensured.
Drawings
FIG. 1 is a schematic reamer of a minimally invasive intervertebral disc manipulation tool of the present invention;
FIG. 2 is a schematic view of a curette of the minimally invasive disc procedure tool of the present invention;
FIG. 3 is a distraction schematic of the minimally invasive intervertebral disc manipulation tool of the present invention;
FIG. 4 is a schematic view of the threaded connection of the blade or scraping head of the present invention to the drawbar;
FIG. 5 is a schematic view of the blade or scraping head of the present invention in rivet connection with a pull rod;
FIG. 6 is a schematic view of markings on the knob and grip of the present invention;
FIG. 7 is a schematic drawing of a scale line on the outer tube of the present invention;
FIG. 8 is a schematic view of the reamer of the present invention entering the intervertebral space through the working cannula;
FIG. 9 is a schematic view of the distractor intervertebral space of the reamer of the present invention;
FIG. 10 is a schematic view of the present reamer processing an intervertebral disc;
FIG. 11 is a schematic view of the end plate handling procedure of the curette of the present invention;
wherein the various reference numbers are:
a reamer 1; a curette 2; a drive structure 3; a traction rod 4; an outer tube 5; a limiting groove 6; a blade 7; a scraping head 8; a rotary block 9; a slider 10; a base 11; a grip block 12; scale markings 13; a reference mark 14; a cutter tail 15; a scale line 16; a handle 17; a working sleeve 18.
Detailed Description
The present invention will be described in detail and specifically with reference to the following examples to facilitate better understanding of the present invention, but the following examples do not limit the scope of the present invention.
The embodiment of the invention provides a minimally invasive intervertebral disc treatment tool, which is composed of a reamer 1 and a curette 2 as shown in figures 1-5, and is characterized in that the reamer 1 comprises a driving structure 3, a traction rod 4, an outer tube 5 and a blade 7; the curette 2 comprises a driving structure 3, a traction rod 4, an outer tube 5 and a curette head 8; the driving structure 3 comprises a rotary block 9 and a sliding block 10 which are in threaded fit with each other, the near end of the traction rod 4 is fixedly matched with the sliding block 10, and the far end of the traction rod 4 is matched with the blade 7 or the scraping head 8 through screws or riveting; the tail parts of the blade 7 and the scraping head 8 are knife tails 15, and the limiting groove 6 is in sliding fit with the knife tails 15; the driving structure 3 drives the traction rod 4 to axially move, and the blade 7 or the scraping head 8 can be expanded and contracted under the action of the axial movement of the traction rod 4 and the limiting groove 6 on the outer tube 5; the minimally invasive intervertebral disc treatment tool shown can be passed through a minimally invasive access to the intervertebral space to distract the collapsed blade 7 and the shaver head 8 from the intervertebral space.
In the minimally invasive intervertebral disc treatment tool, the far ends of the reamer and the curette of the minimally invasive intervertebral disc treatment tool are of adjustable height structures, so that an intervertebral space can be expanded by the expanding reamer of the treatment tool in the operation process, the operation expanding instruments and operation steps are reduced, the operation time is shortened, and the operation efficiency is improved; simultaneously, the size and the height of the intervertebral disc of patients are met, the specification of surgical instruments is reduced, and the operation is simplified; the minimally invasive surgery tool has the advantages that minimally invasive surgery can be achieved through the surgery working channel with the diameter being less than 7mm, the tool is wide in adaptation range due to the extremely small access, and the injury to a patient is small.
As a preferred embodiment of the present invention, the number of the blades 7 of the reamer 1 is two, and the number of the scraping heads 8 of the curette 2 is one or two; the reamer 1 acts on nucleus pulposus, annulus fibrosus and cartilage end plate in intervertebral disc, and the curette 2 acts on cartilage end plate; the reamer is used for treating nucleus pulposus and annulus fibrosus, and the curette is used for treating end plate, so that the intervertebral disc treatment is more targeted, and the operation treatment effect is improved.
As a preferred embodiment of the present invention, the reamer 1 and the curette 2 further comprise a base 11 and a holding block 12, the rotation block 9 is axially limited by the base 11 and the holding block 12, and the sliding block 10 can only axially slide under the limit of the base 11; the holding block 12 is fixedly matched with the near end of the outer tube 5, and the limit groove 6 is positioned at the far end of the outer tube 5; the proximal end of the base 11 is fixedly engaged with the handle 17. The minimally invasive intervertebral disc treatment tool is a manual operation instrument on the basis of ensuring minimally invasive implantation, treatment efficiency and treatment effect, and ensures the safety of operation.
As a preferred embodiment of the present invention, as shown in fig. 6 and 7, the rotation block 9 has a scale mark 13, the holding block 12 has a reference mark 14, and the expansion height of the blade 7 or the scraping head 8 is determined by the scale mark 13 corresponding to the reference mark 14; the outer tube 5 is provided with a scale line 16. The opening height of the minimally invasive intervertebral disc treatment tool and the length of the tool exposed outside the working sleeve in the intervertebral disc can be controlled by the near-end scale, so that the controllability of the operation is improved, and the safety of the operation is ensured.
As shown in fig. 8-11, the minimally invasive intervertebral disc treatment tool of the present invention is used in the following process: in a minimally invasive fusion operation, after a working cannula 18 is placed, a nucleus pulposus clamp is used for windowing an intervertebral disc and simply removing nucleus pulposus, then a handle 17 of a reamer 1 is held, the reamer 1 in a contracted state enters an intervertebral space along a working channel 18 until a preset position is reached, and the length of the reamer 1 exposed outside the working cannula 18 in vivo can be known through the size of a scale line 16 on an outer tube 5 corresponding to a proximal end orifice of the working channel 18. The rotary driving structure 3, the blade 7 is propped open, the blade propping-open height is adjusted through the scale mark 13 corresponding to the reference mark 14 on the control holding block 12, the nucleus pulposus and part of fibrous ring are removed by the rotary handle 17, the intervertebral space is propped open to the preset height, after the reamer 1 is treated, the reamed and crushed tissues are taken by using nucleus pulposus pincers, then the curet 2 is put into the intervertebral space through the same operation, the rotary driving structure 3, the curet 8 is propped open, the curet propping-open height is adjusted through the scale mark 13 corresponding to the reference mark 14 on the control holding block 12, the cartilage end plate is scraped by the drawing curet handle 17 until the cartilage end plate is treated, namely, the intervertebral disc treatment is finished.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. A minimally invasive intervertebral disc treatment tool comprises a reamer (1) and a curette (2), and is characterized in that the reamer (1) comprises a driving structure (3), a traction rod (4), an outer tube (5) and a blade (7); the curette (2) comprises a driving structure (3), a traction rod (4), an outer tube (5) and a curette head (8); the driving structure (3) comprises a rotary block (9) and a sliding block (10) which are in threaded fit with each other, the near end of the traction rod (4) is fixedly matched with the sliding block (10), and the far end of the traction rod (4) is matched with the blade (7) or the scraping head (8) through screws or riveting; the tail parts of the blade (7) and the scraping head (8) are cutter tails (15), and the limiting groove (6) is in sliding fit with the cutter tails (15); the driving structure (3) drives the traction rod (4) to move axially, and the axial movement of the traction rod (4) and the limiting groove (6) on the outer tube (5) act to enable the blade (7) or the scraping head (8) to be capable of stretching and contracting.
2. The tool according to claim 1, wherein the reamer (1) acts on the nucleus pulposus, annulus fibrosus and cartilage endplates within the intervertebral disc and the curette (2) acts on the cartilage endplates.
3. The tool according to claim 1, wherein the reamer (1) and the curette (2) further comprise a base (11) and a grip block (12), the knob (9) being axially retained by the base (11) and the grip block (12).
4. Minimally invasive disc handling tool according to claims 1 and 3, wherein the gripping block (12) is fixedly engaged with the proximal end of the outer tube (5) and the limiting groove (6) is located at the distal end of the outer tube (5).
5. Minimally invasive intervertebral disc manipulation tool according to claims 1 and 3, wherein the rotation block (9) has scale markings (13) and the grip block (12) has reference markings (14).
6. Minimally invasive disc handling tool according to claim 1, wherein the outer tube (5) is provided with a scale wire (16).
7. Minimally invasive disc handling tool according to claim 3, wherein the proximal end of the base (11) is fixedly engaged with a handle (17).
8. Minimally invasive intervertebral disc manipulation tool according to claim 1, characterized in that the number of blades (7) of the reamer (1) is two and the number of curettage heads (8) of the curette (2) is one or two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050423.3A CN110652334A (en) | 2019-10-31 | 2019-10-31 | Minimally invasive intervertebral disc treatment tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050423.3A CN110652334A (en) | 2019-10-31 | 2019-10-31 | Minimally invasive intervertebral disc treatment tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110652334A true CN110652334A (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911050423.3A Pending CN110652334A (en) | 2019-10-31 | 2019-10-31 | Minimally invasive intervertebral disc treatment tool |
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| CN (1) | CN110652334A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022032880A1 (en) * | 2020-08-12 | 2022-02-17 | 山东冠龙医疗用品有限公司 | Double-sided intervertebral curette |
| CN115227333A (en) * | 2022-06-02 | 2022-10-25 | 燕山大学 | Cutting and taking integrated angle-adjustable curet for intervertebral fusion operation |
-
2019
- 2019-10-31 CN CN201911050423.3A patent/CN110652334A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022032880A1 (en) * | 2020-08-12 | 2022-02-17 | 山东冠龙医疗用品有限公司 | Double-sided intervertebral curette |
| CN115227333A (en) * | 2022-06-02 | 2022-10-25 | 燕山大学 | Cutting and taking integrated angle-adjustable curet for intervertebral fusion operation |
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