CN204520885U - Device for cutting posterior longitudinal ligament - Google Patents
Device for cutting posterior longitudinal ligament Download PDFInfo
- Publication number
- CN204520885U CN204520885U CN201520181969.3U CN201520181969U CN204520885U CN 204520885 U CN204520885 U CN 204520885U CN 201520181969 U CN201520181969 U CN 201520181969U CN 204520885 U CN204520885 U CN 204520885U
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- Prior art keywords
- cutting
- longitudinal ligament
- posterior longitudinal
- separated part
- handle
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Abstract
The utility model discloses a kind of device for cutting posterior longitudinal ligament, comprise the handle, the separation cuts structure that are connected, described separation cuts structure comprises separated part, is provided with at the end face of separated part near intervertebral disc side the cutting part be connected, and the cutter head position of described cutting part is provided with sharp edge blade.This utility model structure is simple, compact, only needs an operator just can complete separation and the cutting of ligament, and plays a protective role to nerve, avoid nerve injury, ensures patient's operation safety, reduces operation risk.
Description
Technical field
This utility model relates to medical apparatus and instruments technical field, particularly a kind of device for cutting posterior longitudinal ligament.
Background technology
Nerve dissector in prior art, for the surgical operation therapy of prolapse of lumbar intervertebral disc shape, ligament between intervertebral disc with nerve is separated, longitudinal ligament after a resection, intervertebral disc, to nerve, there is protective effect when inserting Invasive lumbar fusion device, but there is no cutting function, after a resection during longitudinal ligament, generally holding nerve dissector by assistant carries out insulation blocking to nerve, patient's blade, posterior longitudinal ligament cuts by cone-plate pincers or nucleus pulposus clamp, or carry out insulation blocking and cutting operation by patient simultaneously, in brief: in existing apparatus, the apparatus of insulation blocking nerve and the apparatus of cutting posterior longitudinal ligament are respective independently structures, the defect that this posterior longitudinal ligament resection mode exists is: easily because of combination miss, cause nerve injury, cause serious consequence.
Utility model content
The purpose of this utility model is exactly the problems referred to above existed for solving prior art, provides a kind of device for cutting posterior longitudinal ligament; This utility model structure is simple, compact, only needs an operator just can complete separation and the cutting of ligament, and plays a protective role to nerve, avoid nerve injury, ensures patient's operation safety, reduces operation risk.
The technical scheme of this utility model technical solution problem is:
A kind of device for cutting posterior longitudinal ligament, comprise the handle, the separation cuts structure that are connected, described separation cuts structure comprises separated part, is provided with at the end face of separated part near intervertebral disc side the cutting part be connected, and the cutter head position of described cutting part is provided with sharp edge blade.
Described cutting part Handle axis to length L1 be 5-6mm, described cutting part height L5 is 5-6mm, and thickness L2 is 0.5-0.8mm.
The leading section of described cutting part is 7-8mm to the distance L3 of the leading section of separated part.
The length L7 of described separated part is 12-15mm, and the width L4 of described separated part is 5-6mm, and thickness L6 is 0.5-0.8mm.
The front end of described separated part is circular arc, and the radius R of described circular arc is 3mm.
The front and back position of described separated part and handle connecting portion position is respectively equipped with transition arc.
Described handle is circular arc or ellipse in the cross section of vertical axial.
The annular knurl skid resistant course increasing hand-held frictional force is provided with at the handgrip part of handle near rear portion.
Described separated part adopts to the recessed arcuate structure of the end face near intervertebral disc side.
The beneficial effects of the utility model:
1. this utility model structure is simple, compact, only needs an operator just can complete separation and the cutting of ligament, and plays a protective role to nerve, avoid nerve injury, ensures patient's operation safety, reduces operation risk.Directly utilizing the blade of cutting part to cut needing the posterior longitudinal ligament of excision, avoiding the cutting existed in prior art and tearing the large problem of the wound wound that causes, being conducive to operation wound heal.
2. cutting part Handle axis to length L1 be 5-6mm, described cutting part height L5 is 5-6mm, the leading section of described cutting part is 7-8mm to the distance L3 of the leading section of separated part, the length L7 of described separated part is 12-15mm, the width L4 of described separated part is 5-6mm, the front end of separated part is circular arc, the radius R of described circular arc is 3mm, the front and back position of separated part and handle connecting portion position is respectively equipped with transition arc, structure and compact dimensions, quality is light, holds conveniently, and being both convenient to gripping has and can meet operation technique requirement.
3. handle is circular arc or ellipse in the cross section of vertical axial, the annular knurl skid resistant course increasing hand-held frictional force is provided with at the handgrip part of handle near rear portion, grip more convenient reliable, avoid slippage, ensure operation fast, security reliability is high, reduces operation risk.
4. separated part adopts to the recessed arcuate structure of the end face near intervertebral disc side, and arcuate structure plays a protective role to nerve better, avoids nerve injury, ensures patient's operation safety, reduces operation risk.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1 of the present utility model;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the structural representation of the separation cuts structure of Fig. 1;
Fig. 5 is the structural representation of embodiment 1.
Detailed description of the invention
In order to understand this utility model better, explain embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Embodiment 1
As shown in Figures 1 to 4, a kind of device for cutting posterior longitudinal ligament, comprise the handle 1, the separation cuts structure 2 that are connected, described separation cuts structure 2 comprises separated part 21, be provided with at the end face 24 of separated part 21 near intervertebral disc side the cutting part 22 be connected, the cutter head position of described cutting part 22 is provided with sharp edge blade 23.
Described cutting part 22 Handle axis to length L1 be 5-6mm, described cutting part 22 height L5 is 5-6mm, and thickness L2 is 0.5-0.8mm.
The leading section of described cutting part 22 is 7-8mm to the distance L3 of the leading section of separated part 21, and the width L4 of described separated part 21 is 5-6mm, and thickness L6 is 0.5-0.8mm.
The front end of described separated part 21 is circular arc, and the radius R of described circular arc is 3mm.
The length L7 of described separated part 21 is 12-15mm.
Described separated part 21 is respectively equipped with transition arc 1, transition arc 26 with the front and back position of handle 1 connecting portion.
Described handle is circular arc or ellipse in the cross section of vertical axial.
The annular knurl skid resistant course 11 increasing hand-held frictional force is provided with at the handgrip part of handle near rear portion.
Use of the present utility model and operation principle:
During use; device for cutting posterior longitudinal ligament of the present utility model is put between posterior longitudinal ligament and dural sac/nerve root; separated part 21 is positioned near neural side; cutting part 22 is positioned at the posterior longitudinal ligament place of intervertebral disc, mobile structure of the present utility model, utilizes the blade of cutting part 22 to be cut off by posterior longitudinal ligament and takes out; because separated part 21 has defencive function to nerve; cutting part 22 has cutting function, can not cause the risk of cutting part 22 injured nerve, avoids the malpractice occurring that nerve injury causes.
Embodiment 2
As shown in Figure 5, a kind of device for cutting posterior longitudinal ligament, comprise the handle 1, the separation cuts structure 2 that are connected, described separation cuts structure 2 comprises separated part 21, be provided with at the end face 24 of separated part 21 near posterior longitudinal ligament side the cutting part 22 be connected, described separated part 21 adopts to the recessed arcuate structure of the end face 24 near posterior longitudinal ligament side.
By reference to the accompanying drawings the detailed description of the invention of utility model is described although above-mentioned; but the restriction not to this utility model protection domain; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (9)
1. a device for cutting posterior longitudinal ligament, it is characterized in that, also comprise separation cuts structure, described separation cuts structure is connected with handle, described separation cuts structure comprises separated part, be provided with at the end face of separated part near intervertebral disc side the cutting part be connected, the cutter head position of described cutting part is provided with sharp edge blade.
2. device for cutting posterior longitudinal ligament as claimed in claim 1, is characterized in that, described cutting part Handle axis to length L1 be 5-6mm, described cutting part height L5 is 5-6mm, and thickness L2 is 0.5-0.8mm.
3. device for cutting posterior longitudinal ligament as claimed in claim 1, is characterized in that, the leading section of described cutting part is 7-8mm to the distance L3 of the leading section of separated part.
4. device for cutting posterior longitudinal ligament as claimed in claim 1, it is characterized in that, the length L7 of described separated part is 12-15mm, and the width L4 of described separated part is 5-6mm, and thickness L6 is 0.5-0.8mm.
5. device for cutting posterior longitudinal ligament as claimed in claim 1, it is characterized in that, the front end of described separated part is circular arc, and the radius R of described circular arc is 3mm.
6. device for cutting posterior longitudinal ligament as claimed in claim 1, it is characterized in that, the front and back position of described separated part and handle connecting portion position is respectively equipped with transition arc.
7. device for cutting posterior longitudinal ligament as claimed in claim 1, is characterized in that, described handle is circular arc or ellipse in the cross section of vertical axial.
8. device for cutting posterior longitudinal ligament as claimed in claim 1, is characterized in that, be provided with the annular knurl skid resistant course increasing hand-held frictional force at the handgrip part of handle near rear portion.
9. device for cutting posterior longitudinal ligament as claimed in claim 1, is characterized in that, described separated part adopts to the recessed arcuate structure of the end face near intervertebral disc side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181969.3U CN204520885U (en) | 2015-03-27 | 2015-03-27 | Device for cutting posterior longitudinal ligament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181969.3U CN204520885U (en) | 2015-03-27 | 2015-03-27 | Device for cutting posterior longitudinal ligament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204520885U true CN204520885U (en) | 2015-08-05 |
Family
ID=53734946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520181969.3U Expired - Fee Related CN204520885U (en) | 2015-03-27 | 2015-03-27 | Device for cutting posterior longitudinal ligament |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204520885U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111493984A (en) * | 2020-06-04 | 2020-08-07 | 中国人民解放军联勤保障部队第九二〇医院 | Minimally invasive releaser for carpal tunnel syndrome |
| CN112617969A (en) * | 2020-12-31 | 2021-04-09 | 哈尔滨医科大学 | Biting and removing forceps capable of integrally cutting off ligamentum flavum |
| RU2770781C1 (en) * | 2021-03-26 | 2022-04-21 | федеральное государственное бюджетное образовательное учреждение высшего образования "Северо-Западный государственный медицинский университет им. И.И. Мечникова" Министерства здравоохранения Российской Федерации | Perforator of the posterior longitudinal ligament of the spine for use in ventral subaxial cervical spondylodesis |
-
2015
- 2015-03-27 CN CN201520181969.3U patent/CN204520885U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111493984A (en) * | 2020-06-04 | 2020-08-07 | 中国人民解放军联勤保障部队第九二〇医院 | Minimally invasive releaser for carpal tunnel syndrome |
| CN112617969A (en) * | 2020-12-31 | 2021-04-09 | 哈尔滨医科大学 | Biting and removing forceps capable of integrally cutting off ligamentum flavum |
| RU2770781C1 (en) * | 2021-03-26 | 2022-04-21 | федеральное государственное бюджетное образовательное учреждение высшего образования "Северо-Западный государственный медицинский университет им. И.И. Мечникова" Министерства здравоохранения Российской Федерации | Perforator of the posterior longitudinal ligament of the spine for use in ventral subaxial cervical spondylodesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20170327 |