CN112401967B - Sliding type pedicle osteotome - Google Patents
Sliding type pedicle osteotome Download PDFInfo
- Publication number
- CN112401967B CN112401967B CN202011286838.3A CN202011286838A CN112401967B CN 112401967 B CN112401967 B CN 112401967B CN 202011286838 A CN202011286838 A CN 202011286838A CN 112401967 B CN112401967 B CN 112401967B
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- osteotome
- arc
- chute
- radian
- sliding
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- 210000000988 bone and bone Anatomy 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 210000005036 nerve Anatomy 0.000 abstract description 4
- 210000001951 dura mater Anatomy 0.000 abstract description 2
- 210000000278 spinal cord Anatomy 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 4
- 206010028980 Neoplasm Diseases 0.000 description 3
- 210000000273 spinal nerve root Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- 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
- A61B17/1657—Bone breaking devices
-
- 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
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a sliding type pedicle osteotome, which comprises an osteotome sliding groove and an arc osteotome, wherein the radian values of the osteotome and the sliding groove are designed to be 20-40 degrees different according to the curvatures of different sections of human thoracolumbar vertebrae, in the osteotomy process, the sliding groove is clamped at the pedicle osteotomy position, the arc osteotome is inserted into the sliding groove to strike the striking end at the tail end of the osteotome, the osteotome slides along the sliding groove to realize osteotomy, the osteotomy track of the arc osteotome is limited through the sliding groove, the damage to dura mater and nerve roots is avoided, and the accuracy and safety of osteotomy are improved.
Description
Technical Field
The invention relates to the medical field, in particular to a sliding type pedicle osteotome.
Background
In order to achieve a specific tumor resection range, avoiding the operation of via tumor, some vertebral body accessory tumors need to be resected in a whole, the process is always to cut the vertebral pedicle, the traditional osteotome is always in a camber-free design, the osteotomy is easily affected by adjacent vertebral bodies and soft tissues, and the spinal cord and nerve roots are easily damaged during the osteotomy; the pedicle osteotomy operation by using the wire saw is complex, the osteotomy position is limited, the risk of injuring spinal cord and nerve roots in the operation process is high, and the safety and effectiveness requirements cannot be met.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a sliding pedicle osteotome which is simple and safe to operate, avoids damaging spinal cord and nerve roots in the operation process, and ensures the accuracy of osteotomy and the operation safety.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
A sliding type pedicle osteotome comprises an osteotome chute and an arc osteotome;
The bone cutter sliding chute comprises a handle and a sliding chute connected to the handle, wherein the sliding chute comprises an arc-shaped slot bottom and high edges with radians, and the high edges are vertically arranged at two sides of the arc-shaped slot bottom;
The arc osteotome consists of two parts, wherein the front end is an equal-thickness osteotome edge with radian, and the rear end is a knocking section which is gradually thickened into a prismatic structure; the radian of the arc-shaped osteotome is 5-15 degrees larger than that of the corresponding chute, and when the pedicle of the vertebra osteotomies is osteotomies, the end knocking end of the arc-shaped osteotome is higher than the chute after being inserted into the corresponding chute, so that the osteotomies can be knocked conveniently.
Further, the arc osteotome and the chute are arc-shaped designed according to curvature values of different sections of the chest and lumbar vertebrae of a human body, the radian value is 20-40 degrees, and the gradient is 5 degrees.
Furthermore, the high sides with radian at the two sides of the chute are of symmetrical arc structures protruding towards the chute, so that the osteotomy track of the osteotomy knife is conveniently limited;
further, the arc groove bottom forms an included angle of approximately 90 degrees with the radians Gao Biancheng on the two sides.
Further, the front end of the sliding groove is of a saddle type clamping groove structure.
Further, the saddle type clamping groove opening is of a tapered structure, the width of the saddle type clamping groove is 4-16mm, and the opening caliber is reduced by taking 1mm as a gradient.
Further, a limiting beam is connected between two high edges with radian in the chute, the distance between the lower edge of the beam and the bottom of the chute is 1mm, and when in use, the arc osteotome moves in the chute to extend out from the lower side of the limiting beam, so as to realize pedicle osteotomy.
Further, the arc osteotome is provided with scales, so that a user can grasp the osteotomy depth conveniently.
The invention has the following beneficial effects:
The sliding type pedicle osteotome comprises an osteotome sliding groove and an arc osteotome, the radian value is designed to be 20-40 degrees different according to the curvatures of different sections of the chest and lumbar vertebrae of a human body, in the osteotomy process, the sliding groove is clamped at the osteotomy position of the pedicle, the arc osteotome is inserted into the sliding groove, the knocking end of the tail end of the osteotome is knocked, the osteotome slides along the sliding groove to realize osteotomy operation, the movement position of the arc osteotome is limited through the sliding groove, the osteotomy track of the osteotome can be effectively limited through the sliding groove design, the blade is prevented from damaging normal tissues around the target pedicle, and the operation accuracy and safety are improved.
The high side with radian of spout both sides is to the bellied symmetrical arc structure of spout, and the design of the high side with radian of symmetry ensures that this osteotome can be applied to two side pedicle osteotomies simultaneously, avoids repetitive design preparation, makes things convenient for the operation of art person to use. The high edge with radian enables the clamping groove to be more closely fitted with the physiological radian of the inner side of the pedicle of vertebral arch, and stability of the osteotome chute in the clamping process is ensured.
The arc osteotome is provided with scales, so that nerve roots in the lower intervertebral foramen of the target pedicle are prevented from being damaged, the osteotomy depth can be judged at any time in an operation, and whether the osteotomy is complete or not is judged according to the longitudinal diameter size value of each pedicle and the hand feeling of an operator in the operation.
The front end structure of the osteotome chute is designed into a saddle type clamping groove, and the saddle type clamping groove can be ridden and fixed on a target pedicle to fix the chute. During the surgical procedure, the operator typically uses a bone knife to cut off the inferior articular processes of the diseased vertebral body, and the targeted pedicle is fully revealed. At this time, the clamping groove structure with radian can be easily clamped from the tail side to the head side to be positioned on the target pedicle of vertebral arch, and bone cutting can be easily realized.
The width of the saddle type clamping groove is designed according to the transverse diameters of different pedicles of human thoracolumbar vertebrae, the range is 4-16mm, 1mm is used as gradient, the clamping groove and the pedicles are ensured to be closely attached to each other, and the damage of the inner dura mater of the spine is avoided to the greatest extent.
The limiting cross beam is connected between the two high edges with radian in the sliding groove, the blade of the osteotome is designed to be sliding, the arc osteotome moves in the sliding groove to extend out from the lower portion of the limiting cross beam during use, the sliding groove and the two limiting cross beams fixed on the sliding groove can effectively limit the osteotome track, and the accuracy and safety of osteotomy are ensured.
Drawings
FIG. 1 is a schematic view of a chute structure of a osteotome according to the present invention
FIG. 2 is a schematic view of an arc osteotome according to the present invention
FIG. 3 is a schematic view of a lumbar pedicle osteotomy using the present invention
FIG. 4a is a schematic view of a portion of an arc-shaped osteotome according to the invention 1
FIG. 4b is a schematic view of a portion of an arc-shaped osteotome according to the invention 2
In the figure: the device comprises a handle, a chute, a knocking end, a limiting beam, a saddle-shaped clamping groove, a curved high side, a scale and an arc-shaped groove bottom, wherein the handle is arranged at the bottom of the handle, the chute is arranged at the bottom of the handle, the knocking end is arranged at the knocking end, the limiting beam is arranged at the top of the handle, the saddle-shaped clamping groove is arranged at the bottom of the handle, the arc-shaped high side is arranged at the top of the saddle-shaped clamping groove, and the arc-shaped high side is arranged at the bottom of the arc-shaped groove.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but is not limited thereto.
As shown in fig. 1, the sliding pedicle osteotome of the invention comprises a osteotome chute and an arc osteotome; the osteotome chute comprises a handle 1 and a chute 2 connected to the handle 1, wherein the chute 2 comprises an arc chute bottom 8 and high edges 6 with radians, wherein the high edges 6 with radians are vertically arranged at two sides of the arc chute bottom 8, and the arc chute bottom 8 and the high edges 6 with radians at two sides form an included angle of approximately 90 degrees.
As shown in fig. 2, the arc osteotome is composed of two parts, the front section is an equal-thickness osteotome blade with radian, the rear section is a prismatic structure with gradually increased thickness, and the tail end of the prismatic structure is a knocking end 3.
In order to avoid blocking of the upper vertebral body and peripheral tissues, the osteotomy instrument is effectively placed in the human body, and the arc osteotomy knife and the chute 2 are arc-shaped according to the curvature values of different sections of the human body thoracolumbar vertebrae. The radian value is designed to be 20-40 degrees different according to the curvatures of different sections of the chest and lumbar vertebrae of a human body, and is graded by 5 degrees.
In order to facilitate osteotomy, the radian of the arc-shaped osteotome is slightly larger than that of the corresponding chute 2 with the radian high side 6, the arc-shaped osteotome is 5-15 degrees larger than that of the chute with the radian high side 6, and the tail end knocking end 3 of the arc-shaped osteotome is higher than the chute after the arc-shaped osteotome is inserted into the corresponding chute in the osteotomy process, so that the osteotome is convenient to grasp and knock.
The high edges 6 with radian at the two sides of the chute 2 are symmetrical arc structures protruding towards the chute 2, so that the osteotomy track of the osteotomy knife is conveniently limited. The high edge with radian enables the clamping groove to be more closely fitted with the physiological radian of the inner side of the pedicle of vertebral arch, and stability of the osteotome chute in the clamping process is ensured.
As shown in fig. 3, the chute 2 is clamped at the osteotomy position during operation, the arc osteotome is inserted into the chute 2 to slide along the chute to realize osteotomy operation, the movement position of the arc osteotome is limited by the chute, the chute design can effectively limit the osteotomy track of the osteotome, and the blade is prevented from damaging normal tissues around the pedicle of the target vertebra, including important tissue structures such as spinal cord, nerve root and the like.
In addition, in order to avoid damaging nerve roots in the upper intervertebral foramen of the target pedicle, the arc osteotome is provided with scales 7. For judging the osteotomy depth in the operation.
As shown in fig. 4a and 4b, the front end structure of the sliding chute of the osteotome is designed into a saddle-type clamping groove 5, and the saddle-type clamping groove can be straddled and fixed on the target pedicle of vertebral arch to fix the sliding chute 2.
The width of saddle formula draw-in groove is according to the different pedicle of vertebral arch transverse diameter designs of human chest lumbar vertebrae, and the scope is 4-16mm to 1mm is gradient, is connected with restriction crossbeam 4 between two high limits of taking the radian in spout 2, and the spout can carry out effectual restriction to the osteotomy orbit of osteotome with two restriction crossbeams fixed on the spout.
While the invention has been described with reference to the above-described embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents substituted for elements thereof without departing from the spirit and scope of the invention, and it is intended to cover the modifications and equivalents as fall within the true scope of the invention.
Claims (5)
1. A sliding pedicle osteotome, which is characterized in that: comprises a bone cutter sliding groove and an arc bone cutter;
the osteotome sliding chute comprises a handle (1) and a sliding chute (2) connected to the handle (1), wherein the sliding chute (2) comprises an arc-shaped chute bottom (8) and high edges (6) with radians, wherein the high edges are vertically arranged at two sides of the arc-shaped chute bottom (8);
The arc osteotome consists of two parts, wherein the front section is an equal-thickness osteotome blade with radian, the rear section is a prismatic structure with gradually increased thickness, and the tail end of the prismatic structure is a knocking end (3);
The radian of the arc-shaped osteotome is slightly larger than that of the high side (6) with the radian at the two sides of the corresponding chute (2), the radian of the arc-shaped osteotome is 5-15 degrees larger than that of the high side (6) with the radian, and when the osteotome is used for osteotomy, the tail end knocking end (3) of the arc-shaped osteotome is higher than the chute after being inserted into the corresponding chute;
The front end of the sliding groove (2) is of a saddle type clamping groove (5) structure; a limiting beam (4) is connected between two high edges with radian in the chute (2), and when in use, the arc osteotome moves in the chute and extends out from the lower part of the limiting beam (4); the arc osteotome is provided with scales (7).
2. The sliding pedicle osteotome of claim 1, wherein: the arc osteotome and the chute (2) are arc-shaped designed according to the curvature values of different sections of the chest and lumbar vertebrae of a human body, the radian value is 20-40 degrees, and the gradient is 5 degrees.
3. The sliding pedicle osteotome of claim 2, wherein: the high edges (6) with radian at two sides of the chute (2) are symmetrical arc structures protruding towards the chute (2).
4. A sliding pedicle osteotome as claimed in claim 3, wherein: the arc groove bottom (8) and the high side (6) with radian at two sides form an included angle of approximately 90 degrees.
5. The sliding pedicle osteotome of claim 1, wherein: the saddle type clamping groove (5) is of a tapered structure, the width of the saddle type clamping groove (5) is 4-16mm, and the opening is reduced by using 1mm as a gradient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011286838.3A CN112401967B (en) | 2020-11-17 | 2020-11-17 | Sliding type pedicle osteotome |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011286838.3A CN112401967B (en) | 2020-11-17 | 2020-11-17 | Sliding type pedicle osteotome |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112401967A CN112401967A (en) | 2021-02-26 |
| CN112401967B true CN112401967B (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011286838.3A Active CN112401967B (en) | 2020-11-17 | 2020-11-17 | Sliding type pedicle osteotome |
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| Country | Link |
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| CN (1) | CN112401967B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2776304Y (en) * | 2005-04-04 | 2006-05-03 | 杨惠林 | Vertebral arch root blunt nosed drill |
| CN201244060Y (en) * | 2008-09-12 | 2009-05-27 | 闫宏伟 | Sliding type bone ridge chisel |
| CN101999935A (en) * | 2009-09-03 | 2011-04-06 | 武汉中翰整形美容医院 | Mandibular osteotomy positioning device |
| CN202821534U (en) * | 2012-08-06 | 2013-03-27 | 高梁斌 | Extruded type spinal vertebral body osteotome |
| CN104323820A (en) * | 2014-11-05 | 2015-02-04 | 中国人民解放军第二军医大学 | Vertebral arch pedicle bone chisel with arc-shaped cutting edge and application thereof |
| CN204971449U (en) * | 2015-09-29 | 2016-01-20 | 北京市富乐科技开发有限公司 | Thin slice formula pedicle of vertebral arch osteotome |
| CN210871774U (en) * | 2019-07-27 | 2020-06-30 | 贵阳市第四人民医院 | Auxiliary tool for osteotomy |
| CN213850908U (en) * | 2020-11-17 | 2021-08-03 | 中国人民解放军空军军医大学 | Sliding type vertebral pedicle osteotome |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7166107B2 (en) * | 2000-09-11 | 2007-01-23 | D. Greg Anderson | Percutaneous technique and implant for expanding the spinal canal |
| JP6980658B2 (en) * | 2016-07-26 | 2021-12-15 | オリンパステルモバイオマテリアル株式会社 | Surgical instrument for osteotomy |
-
2020
- 2020-11-17 CN CN202011286838.3A patent/CN112401967B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2776304Y (en) * | 2005-04-04 | 2006-05-03 | 杨惠林 | Vertebral arch root blunt nosed drill |
| CN201244060Y (en) * | 2008-09-12 | 2009-05-27 | 闫宏伟 | Sliding type bone ridge chisel |
| CN101999935A (en) * | 2009-09-03 | 2011-04-06 | 武汉中翰整形美容医院 | Mandibular osteotomy positioning device |
| CN202821534U (en) * | 2012-08-06 | 2013-03-27 | 高梁斌 | Extruded type spinal vertebral body osteotome |
| CN104323820A (en) * | 2014-11-05 | 2015-02-04 | 中国人民解放军第二军医大学 | Vertebral arch pedicle bone chisel with arc-shaped cutting edge and application thereof |
| CN204971449U (en) * | 2015-09-29 | 2016-01-20 | 北京市富乐科技开发有限公司 | Thin slice formula pedicle of vertebral arch osteotome |
| CN210871774U (en) * | 2019-07-27 | 2020-06-30 | 贵阳市第四人民医院 | Auxiliary tool for osteotomy |
| CN213850908U (en) * | 2020-11-17 | 2021-08-03 | 中国人民解放军空军军医大学 | Sliding type vertebral pedicle osteotome |
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| Publication number | Publication date |
|---|---|
| CN112401967A (en) | 2021-02-26 |
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