CN211862895U - Minimally invasive intervertebral disc treatment tool - Google Patents
Minimally invasive intervertebral disc treatment tool Download PDFInfo
- Publication number
- CN211862895U CN211862895U CN201921854725.1U CN201921854725U CN211862895U CN 211862895 U CN211862895 U CN 211862895U CN 201921854725 U CN201921854725 U CN 201921854725U CN 211862895 U CN211862895 U CN 211862895U
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- China
- Prior art keywords
- reamer
- curette
- minimally invasive
- traction rod
- intervertebral disc
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- 238000007790 scraping Methods 0.000 claims abstract description 17
- 210000004940 Nucleus Anatomy 0.000 claims abstract description 10
- 210000000845 Cartilage Anatomy 0.000 claims description 8
- 230000000717 retained Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 210000000538 Tail Anatomy 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000004927 fusion Effects 0.000 description 7
- 230000000875 corresponding Effects 0.000 description 5
- 210000001264 Anterior Cruciate Ligament Anatomy 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 210000001624 Hip Anatomy 0.000 description 2
- 206010022114 Injury Diseases 0.000 description 2
- 230000004301 light adaptation Effects 0.000 description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000007103 Spondylolisthesis Diseases 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 201000002193 degenerative disc disease Diseases 0.000 description 1
- 230000003111 delayed Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 210000001519 tissues Anatomy 0.000 description 1
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Abstract
The utility model 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, the reamer is used for treating nucleus pulposus and fibrous ring, 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 utility model relates to a spinal interbody fusion operation field especially relates to a wicresoft's intervertebral disc handling 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 defects, the utility model designs a minimally invasive intervertebral disc processing tool which comprises a height-adjustable reamer and a height-adjustable curette.
SUMMERY OF THE UTILITY MODEL
In order to can not pass through wicresoft's working channel to current intervertebral disc handling tool, or even can get into intervertebral space through wicresoft's passageway, nevertheless can't compromise the problem in the aspect of treatment effeciency, treatment effect, easy and simple to handle nature and security etc, the utility model provides a wicresoft's intervertebral disc handling tool.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model 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 a blade; 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 utility model has the advantages of it is following:
(1) the utility model discloses a minimal access intervertebral disc processing tool accessible diameter 7mm below operation working channel satisfies the minimal access operation, and minimum route makes instrument adaptation wide range, and is little to the patient injury.
(2) The utility model has the advantages that the reamer and the curette of the minimally invasive intervertebral disc processing tool have the adjustable height structure at the far end, so that the intervertebral space can be expanded by the expanding reamer of the processing tool in the operation process, thereby reducing the operation expanding instruments and operation steps, shortening the operation time and improving the operation efficiency; 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 utility model discloses a wicresoft's intervertebral disc processing tool contains reamer and curet, and the reamer is handled to nucleus pulposus and fibrous ring, and the curet is handled to the end plate, makes intervertebral disc processing have more the pertinence, improves the operation treatment effect.
(4) The utility model discloses a minimal access intervertebral disc processing tool is the manually operation apparatus on guaranteeing the basis of wicresoft implantation, treatment effeciency, treatment effect, has guaranteed the security of operation.
(5) The utility model discloses a minimally invasive intervertebral disc processing tool's the scale control that the instrument that struts height and instrument expose in the intervertebral disc outside the work cover pipe length all can pass through the near-end has increased the controllability of operation, has guaranteed the security of operation.
Drawings
FIG. 1 is a schematic reamer view 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 intervertebral disc manipulation tool of the present invention;
FIG. 3 is a schematic view of the distraction 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 and the drag link of the present invention;
FIG. 5 is a schematic view of the blade or scraping head of the present invention being attached to a tension rod rivet;
FIG. 6 is a schematic view of the markings on the rotating and holding blocks of the present invention;
fig. 7 is a schematic view 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 process of expanding the intervertebral space by the reamer of the present invention;
FIG. 10 is a schematic view of the reamer of the present invention treating an intervertebral disc;
FIG. 11 is a schematic view of the end plate processing 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 specific embodiments so as to provide a better understanding of the present invention, but the following embodiments do not limit the scope of the present invention.
The embodiment of the utility model provides a minimally invasive intervertebral disc treatment tool, as shown in fig. 1-5, comprising a reamer 1 and a curette 2, 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 utility model, the reamer and the distal end of the curette of the minimally invasive intervertebral disc processing tool are of height-adjustable structures, so that the intervertebral space can be opened by the opening reamer of the processing tool in the operation process, thereby reducing the operation opening instruments and operation steps, shortening the operation time and improving the operation efficiency; 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 include 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 limitation 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 utility model discloses a minimal access intervertebral disc processing tool is the manually operation apparatus on guaranteeing the basis of wicresoft implantation, treatment effeciency, treatment effect, has guaranteed the security of operation.
As a preferred embodiment of the present invention, as shown in fig. 6 and 7, the turning block 9 has a scale mark 13, the holding block 12 has a reference mark 14, and the stretching 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 utility model discloses a minimally invasive intervertebral disc processing tool's the scale control that the instrument that struts height and instrument expose in the intervertebral disc outside the work cover pipe length all can pass through the near-end has increased the controllability of operation, has guaranteed the security of operation.
As shown in fig. 8-11, the minimally invasive intervertebral disc treatment tool of the present invention is used in the following steps: 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.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (8)
1. The minimally invasive intervertebral disc treatment tool consists of 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;
a limiting groove (6) is formed in the far end of the outer tube (5), a cutter tail (15) is arranged at the tail parts of the blade (7) and the scraping head (8), and the limiting groove (6) is in sliding fit with the cutter tail (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 claim 3, wherein the gripping block (12) is fixedly engaged with the proximal end of the outer tube (5).
5. Minimally invasive intervertebral disc manipulation tool according to claim 3, wherein the rotation block (9) has scale markings (13) and the grip block (12) has fiducial 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 |
|---|---|---|---|
| CN201921854725.1U CN211862895U (en) | 2019-10-31 | 2019-10-31 | Minimally invasive intervertebral disc treatment tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921854725.1U CN211862895U (en) | 2019-10-31 | 2019-10-31 | Minimally invasive intervertebral disc treatment tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211862895U true CN211862895U (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921854725.1U Active CN211862895U (en) | 2019-10-31 | 2019-10-31 | Minimally invasive intervertebral disc treatment tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022174560A1 (en) * | 2021-02-20 | 2022-08-25 | 山东冠龙医疗用品有限公司 | Expandable intervertebral disc endplate unilateral scraping processor |
-
2019
- 2019-10-31 CN CN201921854725.1U patent/CN211862895U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022174560A1 (en) * | 2021-02-20 | 2022-08-25 | 山东冠龙医疗用品有限公司 | Expandable intervertebral disc endplate unilateral scraping processor |
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