CN205072954U - Limit dark sour jujube suddenly to indulge and split a section osteotome - Google Patents
Limit dark sour jujube suddenly to indulge and split a section osteotome Download PDFInfo
- Publication number
- CN205072954U CN205072954U CN201520677004.3U CN201520677004U CN205072954U CN 205072954 U CN205072954 U CN 205072954U CN 201520677004 U CN201520677004 U CN 201520677004U CN 205072954 U CN205072954 U CN 205072954U
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- China
- Prior art keywords
- chisel
- depth stop
- head
- limit
- chisel head
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Abstract
The utility model relates to a limit dark sour jujube suddenly to indulge and split a section osteotome belongs to the medical instrument field, including the chisel handle that connects gradually, the limit is dark protruding and the chisel head, the chisel handle, the limit is dark protruding and the chisel for the first time the nature abrasive machining form, the chisel handle, the limit is dark protruding and the chisel head and bilateral symmetry cuts a hole first cross section and is less than the dark bellied thickness of limit for wedge, the thickness of chisel head on same central line, chisel head breadth degree is greater than the dark protruding width of limit, cut a hole overhead portion both sides to expose in limit baffle, the chisel handle is hit beats the end for the sphere, steerable osteotome cut the bone degree of depth, reduce the operation risk.
Description
Technical field
This utility model relates to that a kind of depth stop spinous process is vertical splits bone cutting chisel, belongs to medical instruments field.
Background technology
Prolapse of lumbar intervertebral disc, lumbar spondylolisthesis, unstable spine clinically, neck, thoracolumbar vertebrae pipe stenosis, Burst Fracture are commonly encountered diseases, effective Therapeutic Method is spinous process, laminectomy for decompression, spinal cord and nerve roots is detected and is loosened, for strengthening the postoperative stability of spinal column, usually row intervertebral fusion and Internal transpedicular fixation in art.For increasing spinal stability, reduce the complication such as postoperative lumbar and back pain, we select stringer to rive reservation spinous process, retain interspinal ligaments and supraspinal ligament, and in order to implement good reservation spinous process, retain interspinal ligaments and supraspinal ligament, spinous process stringer osteotomy is particularly important.In operation, existing bone cutting chisel gos deep into the bad control of the degree of depth of spinous process, the inner case of osteotomy in spinous process cannot be observed, doctor only relies on manual control in operation, feel with doctor is carried out, careless slightly osteotome gos deep into canalis spinalis and crosses the damage that deeply can cause spinal cord and nerve root, patient seriously can be made to occur lower extremity paralysis, cause great medical skill accident.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of depth stop spinous process to indulge and split bone cutting chisel, can control the osteotomy degree of depth of osteotome, reduce operation risk.
Depth stop spinous process described in the utility model is vertical splits bone cutting chisel, comprise the chisel grip, depth stop projection and the chisel head that connect successively, chisel grip, depth stop projection and the disposable grinding of chisel head form, chisel grip, depth stop protruding and chisel head is symmetrical on same centrage, chisel head cross section is wedge shape, and the thickness of chisel head is less than the thickness of depth stop projection, and chisel head width is greater than depth stop ledge width, both sides, chisel head top are exposed to postive stop baffle, and it is sphere that chisel grip is impacted end.
Chisel grip arranges texture, increasing friction force, prevent hands sliding.
The exposed portion of chisel head scribbles coloured coating, and because chisel grip, depth stop projection and the disposable grinding of chisel head form, each several part color is almost consistent, is indicated, can judge the direction of chisel head by coloured coating.
Chisel head one lateral edges arranges scale, is used for mark depths.
In order to adapt to the different cutter bone degree of depth, the specification of chisel head is divided into 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm etc.
Operation principle and process:
During work, spinous process length is measured according to preoperative imaging examination, select the depth stop spinous process of appropriate length to indulge and split bone cutting chisel, hand-held chisel grip is placed on osteotomy site, the sphere of chisel grip is knocked with hand hammer, even if hand hammer has inclination when knocking, when knocking the chisel grip end at sphere, its stress point is also very near the position of center line of chisel grip, prevent sideslip, chisel grip, depth stop projection and the disposable grinding of chisel head form, chisel grip, depth stop protruding and chisel head is symmetrical on same centrage, chisel head cross section is wedge shape, the thickness of chisel head is less than the thickness of depth stop projection, like this when depth stop projection contacts is to spinous process, depth stop projection is stopped by spinous process, chisel head cannot continue deeply, prevent chisel head from too going deep into Spinal Cord and nerve root, chisel head width is greater than depth stop ledge width, both sides, chisel head top are exposed to postive stop baffle, can be used for observing chisel head whether chisel direction correct.
The beneficial effect that this utility model is compared with prior art had is:
Depth stop spinous process described in the utility model is vertical splits bone cutting chisel, what limit chisel head by depth stop projection gos deep into the degree of depth, the accuracy operated in surgical process can be strengthened, flexible operation easy to use, decrease the risk of operation, reduce stringer spinous process of riving and retain the incidence rate of intraoperative compliaction of spinous process, interspinal ligaments and supraspinal ligament.
Accompanying drawing explanation
Fig. 1 is this utility model embodiment front view.
In figure: 1, chisel grip; 2, depth stop is protruding; 3, chisel head; 4, coating; 5, scale.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Figure 1, depth stop spinous process described in the utility model is vertical splits bone cutting chisel, comprise the chisel grip 1, depth stop protruding 2 and the chisel head 3 that connect successively, chisel grip 1, depth stop protruding 2 and the disposable grinding of chisel head 3 form, chisel grip 1, depth stop protruding 2 and chisel head 3 are symmetrical on same centrage, chisel head 3 cross section is wedge shape, the thickness of chisel head 3 is less than the thickness of depth stop projection 2, chisel head 3 width is greater than protruding 2 width of depth stop, both sides, chisel head 3 top are exposed to postive stop baffle, and chisel grip 1 is sphere by impact end.
Chisel grip 1 arranges texture, increasing friction force, prevent hands sliding.
The exposed portion of chisel head 3 scribbles coloured coating 4, and because chisel grip 1, depth stop protruding 2 and the disposable grinding of chisel head 3 form, each several part color is almost consistent, is indicated, can judge the direction of chisel head 3 by coloured coating 4.
Chisel head 3 one lateral edges arranges scale 5, is used for mark depths.
In order to adapt to the different cutter bone degree of depth, the specification of chisel head 3 is divided into 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm etc.
Operation principle and process:
During work, spinous process length is measured according to preoperative imaging examination, select the depth stop spinous process of appropriate length to indulge and split bone cutting chisel, hand-held chisel grip 1 is placed on osteotomy site, the sphere of chisel grip 1 is knocked with hand hammer, even if hand hammer has inclination when knocking, when knocking chisel grip 1 end at sphere, its stress point is also very near the position of center line of chisel grip 1, prevent sideslip, chisel grip 1, depth stop protruding 2 and the disposable grinding of chisel head 3 form, chisel grip 1, depth stop protruding 2 and chisel head 3 are symmetrical on same centrage, chisel head 3 cross section is wedge shape, the thickness of chisel head 3 is less than the thickness of depth stop projection 2, like this when depth stop projection 2 touches spinous process, depth stop projection 2 is stopped by spinous process, chisel head 3 cannot continue deeply, prevent chisel head 3 from too going deep into Spinal Cord and nerve root, chisel head 3 width is greater than protruding 2 width of depth stop, both sides, chisel head 3 top are exposed to postive stop baffle, can be used for observing chisel head 3 whether chisel direction correct.
Claims (4)
1. a depth stop spinous process is indulged and is split bone cutting chisel, it is characterized in that: comprise the chisel grip (1) connected successively, depth stop projection (2) and chisel head (3), chisel grip (1), depth stop projection (2) and chisel head (3) disposable grinding form, chisel grip (1), depth stop projection (2) and chisel head (3) are symmetrical on same centrage, chisel head (3) cross section is wedge shape, the thickness of chisel head (3) is less than the thickness of depth stop projection (2), chisel head (3) width is greater than depth stop projection (2) width, chisel head (3) both sides, top are exposed to postive stop baffle, chisel grip (1) is sphere by impact end.
2. depth stop spinous process according to claim 1 is vertical splits bone cutting chisel, it is characterized in that: (1) arranges texture to chisel grip.
3. depth stop spinous process according to claim 2 is vertical splits bone cutting chisel, it is characterized in that: the exposed portion of chisel head (3) scribbles coloured coating (4).
4. depth stop spinous process according to claim 3 is vertical splits bone cutting chisel, it is characterized in that: chisel head (3) lateral edges arranges scale (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520677004.3U CN205072954U (en) | 2015-09-04 | 2015-09-04 | Limit dark sour jujube suddenly to indulge and split a section osteotome |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520677004.3U CN205072954U (en) | 2015-09-04 | 2015-09-04 | Limit dark sour jujube suddenly to indulge and split a section osteotome |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205072954U true CN205072954U (en) | 2016-03-09 |
Family
ID=55425405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520677004.3U Expired - Fee Related CN205072954U (en) | 2015-09-04 | 2015-09-04 | Limit dark sour jujube suddenly to indulge and split a section osteotome |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205072954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106539609A (en) * | 2017-02-07 | 2017-03-29 | 吴大怡 | The deep osteotome of flaggy hole wall hone lamella limit |
-
2015
- 2015-09-04 CN CN201520677004.3U patent/CN205072954U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106539609A (en) * | 2017-02-07 | 2017-03-29 | 吴大怡 | The deep osteotome of flaggy hole wall hone lamella limit |
| CN106539609B (en) * | 2017-02-07 | 2024-03-05 | 吴大怡 | Lamellar Dou Bigu depth-limiting osteotome |
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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: 20160309 Termination date: 20160904 |