CN113974783A - Decompression incision knife in cervical vertebra tube - Google Patents
Decompression incision knife in cervical vertebra tube Download PDFInfo
- Publication number
- CN113974783A CN113974783A CN202111388812.4A CN202111388812A CN113974783A CN 113974783 A CN113974783 A CN 113974783A CN 202111388812 A CN202111388812 A CN 202111388812A CN 113974783 A CN113974783 A CN 113974783A
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- CN
- China
- Prior art keywords
- knife
- connecting rod
- cutting
- decompression
- cervical vertebra
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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.)
- Pending
Links
- 230000006837 decompression Effects 0.000 title claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 64
- 210000004446 longitudinal ligament Anatomy 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000003041 ligament Anatomy 0.000 description 5
- 210000001519 tissue Anatomy 0.000 description 5
- 210000001951 dura mater Anatomy 0.000 description 2
- 210000000278 spinal cord Anatomy 0.000 description 2
- 206010008164 Cerebrospinal fluid leakage Diseases 0.000 description 1
- 208000028389 Nerve injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008764 nerve damage Effects 0.000 description 1
- 208000020431 spinal cord injury Diseases 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
- A61B17/3211—Surgical scalpels, knives; Accessories therefor
-
- 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
Abstract
The invention relates to a decompression incision knife in a cervical vertebra tube, which comprises a handheld handle, a left extension part connected to the left end of the handheld handle, a right extension part connected to the right end of the handheld handle, a left cutting part connected to the end part of the left extension part and a right cutting part connected to the end part of the right extension part; the left cutting part comprises a left cutting knife, a left triangular knife and a left connecting rod, and the left connecting rod is connected with the left extending part; the right cutting part comprises a right cutting knife, a right triangular knife and a right connecting rod, the right connecting rod is connected with the right extending part, and the radian of the left connecting rod is 21-25 degrees; the radian of the right connecting rod is 88-92 degrees. Compared with the prior art, the invention has the beneficial effects that: the right cutting part and the left cutting part are optimized cervical posterior longitudinal ligament incision knives, and are integrated on the same instrument, so that the problem of frequent replacement of the instrument in the operation process is reduced.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a decompression incision knife in a cervical vertebra tube.
Background
In the anterior cervical fusion internal fixation, the posterior longitudinal ligament is usually cut off according to the requirements of the patient's condition to completely reduce the pressure of the spinal cord, but the incision of the posterior longitudinal ligament in the anterior cervical surgery has a high risk, and because no special surgical instrument for incising the ligament is available temporarily at present, the risk of nerve injury caused by spinal cord injury and cerebrospinal fluid leakage caused by dural membrane injury exists when the posterior longitudinal ligament is cut off.
ZL201720158315.8 discloses a posterior longitudinal ligament of cervical spine incision knife which substantially overcomes the disadvantages of the above-mentioned problems. In the actual use process, however, the cutting instrument can not meet all requirements, and needs to be switched with the traditional instrument cutting instrument for use; particularly, some patients need to frequently replace the instruments, thus the operation time of doctors and the working strength of instrument transfer personnel are increased; while also increasing the risk to the patient.
Disclosure of Invention
The invention aims to provide a cervical intratubular decompression incision knife, which integrates two optimized cervical posterior longitudinal ligament incision knives, and reduces the problem of frequent replacement of the appliances in the operation process by integrating the two optimized cervical posterior longitudinal ligament incision knives on the same appliance.
The invention is realized by the following technical scheme: a decompression incision knife in a cervical vertebra canal comprises a handheld handle 1, a left extension part 2 connected to the left end of the handheld handle 1, a right extension part 3 connected to the right end of the handheld handle 1, a left cutting part 4 connected to the end part of the left extension part 2 and a right cutting part 5 connected to the end part of the right extension part 3;
the left cutting part 4 comprises
A left cutter 41 having a flat shape and a blade body with a blade at an end thereof;
a left triangular cutter 42 connected to the tail end of the left cutter 41 and having a triangular cross section;
a left connecting rod 43 for connecting the left extending part 2 and the arc-shaped rod piece of the left triangular knife 42;
the right cutting part 5 comprises
A right cutter 51 having a flat shape and a blade at an end thereof;
a right triangular cutter 52 connected to the tail end of the right cutter 51 and having a triangular cross section;
the right connecting rod 53 is used for connecting the right extending part 3 and the arc-shaped rod piece of the right triangular knife 52;
wherein, the radian of the left connecting rod 43 is 21-25 degrees; the radian of the right connecting rod 53 ranges from 88 degrees to 92 degrees.
Compared with the prior art, the invention has the beneficial effects that:
1. the right cutting part and the left cutting part are optimized cervical posterior longitudinal ligament incision knives, and are integrated on the same instrument, so that the problem of frequent replacement of the instrument in the operation process is reduced.
2. The full advantages of the right cutting part are kept, the space around the scalpel is enlarged by the right triangular knife after the right cutting knife enters the tissue, and the right triangular knife is particularly suitable for cutting ligaments from the upper and two sides; the length of the right three-edged knife is 10mm, so that the cutting angle of the ligament is increased, and the risk of damaging the dura mater is reduced. The structure ensures that the doctor can successfully incise the posterior longitudinal ligament by using the instrument, does not hurt the adjacent tissues around the incision, and can obviously reduce the operation risk of damaging the spinal cord and the dura mater.
3. Redesigned left cutting portion, left cutting portion is different from other instruments now, and its overall structure is similar with right cutting portion to guarantee that left cutting portion all has the whole advantages of right cutting portion, adjusted the radian of left connecting rod in addition, make left cutting portion remain traditional cutting tool's characteristics.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
FIG. 4 is an enlarged view at C of FIG. 1;
fig. 5 is an enlarged view at D in fig. 1.
Description of reference numerals: 1 handheld handle, 2 left extension parts, 3 right extension parts, 4 left cutting parts, 41 left cutting knives, 42 left triangular knives, 43 left connecting rods, 5 right cutting parts, 51 right cutting knives, 52 right triangular knives and 53 right connecting rods.
Detailed Description
The invention is described in detail below with reference to the following description of the drawings:
in the description of the present invention, it is to be understood that the terms "left", "right", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the described devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-5: a decompression incision knife in a cervical vertebra canal comprises a handheld handle 1, a left extension part 2 connected to the left end of the handheld handle 1, a right extension part 3 connected to the right end of the handheld handle 1, a left cutting part 4 connected to the end part of the left extension part 2 and a right cutting part 5 connected to the end part of the right extension part 3;
the left cutting part 4 comprises
A left cutter 41 having a flat shape and a blade body with a blade at an end thereof;
a left triangular cutter 42 connected to the tail end of the left cutter 41 and having a triangular cross section;
a left connecting rod 43 for connecting the left extending part 2 and the arc-shaped rod piece of the left triangular knife 42;
the right cutting part 5 comprises
A right cutter 51 having a flat shape and a blade at an end thereof;
a right triangular cutter 52 connected to the tail end of the right cutter 51 and having a triangular cross section;
the right connecting rod 53 is used for connecting the right extending part 3 and the arc-shaped rod piece of the right triangular knife 52;
wherein, the radian of the left connecting rod 43 is 21-25 degrees; the radian of the right connecting rod 53 ranges from 88 degrees to 92 degrees. In the scheme, the left cutting knife 41 and the right cutting knife 51 are flat, so that the tissue can be conveniently cut to form an incision, and the knife body can conveniently enter a cervical posterior longitudinal ligament; in order to match the left cutting knife 41 and the right cutting knife 51 with the following three-edged knife, the tail parts of the left cutting knife 41 and the right cutting knife 51 are gradually thickened.
Further, the arc of the left connecting rod 43 is 23 °. The radian of the right connecting rod 53 is 90 °. The left and right connecting rods 43 and 53 are circular in cross section. The arc length of the right connecting rod 53 is 10 mm. The lengths of the left triangular knife 42 and the right triangular knife 52 are both 8 mm. The width of the left cutting knife 41 is 1 mm. The length of the right cutting knife 51 is 2mm, and the width is 2 mm.
The length and the angle are optimized by continuously exploring and considering in the operation process. In particular, the parameters of the left cutting section 4 are adjusted in conjunction with the operation based on the specific parameters of the right cutting section 5. Some of the optional parameters are not limited.
And the handheld handle 1 is provided with a reticulate pattern knurl 11 for increasing friction force. The friction force during hand holding can be improved, and surgical accidents caused by hand slipping are avoided.
The working principle is as follows:
during operation, a doctor holds the handle 1 by hand, selects a proper cutting part, slightly exerts force to cut the longitudinal ligament behind the cervical vertebra by using a flat cutting knife, then further stretches the cutting knife into the ligament, moves to the position of the longitudinal ligament behind the cervical vertebra, slightly exerts force to cut the ligament by means of three edge blades of the triangular knife by adjusting the proper direction.
In the cutting process, the left cutting portion 4 is preferably cut. However, when a portion to be pulled comes, the right cutting portion 5 may be switched to pull in consideration of turning direction. If the operation needs to be switched, the doctor only needs to rotate the hand-held handle, uses the right cutting part 5 to perform the operation, hooks and pulls open the tissue by using the right connecting rod 53, and exposes the operation visual field, thereby facilitating the operation. By using the instrument, a doctor can smoothly incise the posterior longitudinal ligament without damaging adjacent tissues around the incision, and the surgical risk can be obviously reduced.
While the invention has been illustrated and described with respect to specific embodiments and alternatives thereof, it will be understood that various changes and modifications can be made without departing from the spirit and scope of the invention. It is understood, therefore, that the invention is not to be in any way limited except by the appended claims and their equivalents.
Claims (9)
1. The utility model provides a intraductal decompression incision sword of cervical vertebra which characterized in that: the cutting tool comprises a handheld handle (1), a left extending part (2) connected to the left end of the handheld handle (1), a right extending part (3) connected to the right end of the handheld handle (1), a left cutting part (4) connected to the end part of the left extending part (2) and a right cutting part (5) connected to the end part of the right extending part (3);
the left cutting part (4) comprises
A left cutting knife (41) which is a flat knife body with a blade at the end;
the left triangular knife (42) is connected to the tail end of the left cutting knife (41) and is provided with a triangular cross section;
the left connecting rod (43) is used for connecting the left extending part (2) and the arc-shaped rod piece of the left triangular knife (42);
the right cutting part (5) comprises
A right cutting knife (51) which is a flat knife body with a blade at the end;
the right triangular knife (52) is connected with the tail end of the right cutting knife (51) and is provided with a knife body with a triangular section;
the right connecting rod (53) is used for connecting the right extending part (3) and an arc-shaped rod piece of the right triangular knife (52);
wherein the radian of the left connecting rod (43) is 21-25 degrees; the radian of the right connecting rod (53) is 88-92 degrees.
2. The intraductal decompression incision knife of cervical vertebra of claim 1, characterized by: the radian of the left connecting rod (43) is 23 degrees.
3. The intraductal decompression incision knife of cervical vertebra of claim 1, characterized by: the radian of the right connecting rod (53) is 90 degrees.
4. The intraductal decompression incision knife of cervical vertebra of claim 1, characterized by: the cross sections of the left connecting rod (43) and the right connecting rod (53) are circular.
5. The intraductal decompression incision knife of cervical vertebra of claim 1, characterized by: the arc length of the right connecting rod (53) is 10 mm.
6. The intraductal decompression incision knife of cervical vertebra of claim 1, characterized by: the lengths of the left triangular knife (42) and the right triangular knife (52) are both 8 mm.
7. The intraductal decompression incision knife of cervical vertebra of claim 1, characterized by: the width of the left cutting knife (41) is 1 mm.
8. The intraductal decompression incision knife of cervical vertebra of claim 1, characterized by: the length of the right cutting knife (51) is 2mm, and the width of the right cutting knife is 2 mm.
9. The intraductal decompression incision knife of cervical vertebra of claim 1, characterized by: and the handheld handle (1) is provided with a reticulate pattern knurl (11) for increasing friction force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111388812.4A CN113974783A (en) | 2021-11-22 | 2021-11-22 | Decompression incision knife in cervical vertebra tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111388812.4A CN113974783A (en) | 2021-11-22 | 2021-11-22 | Decompression incision knife in cervical vertebra tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113974783A true CN113974783A (en) | 2022-01-28 |
Family
ID=79749858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111388812.4A Pending CN113974783A (en) | 2021-11-22 | 2021-11-22 | Decompression incision knife in cervical vertebra tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113974783A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060263745A1 (en) * | 2005-05-20 | 2006-11-23 | Jeffrey Lasner | Periotome |
| CN201572149U (en) * | 2010-01-06 | 2010-09-08 | 聂林 | Anterior cervical posterior longitudinal ligament cutting hook knife |
| CN202069661U (en) * | 2011-04-28 | 2011-12-14 | 徐南伟 | Nerve dissector special for cervical vertebra |
| DE102013102049A1 (en) * | 2013-03-01 | 2014-09-18 | Stefan Neumeyer | Medical hand instrument |
| CN204147092U (en) * | 2014-09-23 | 2015-02-11 | 杨晓燕 | A kind of suspensory ligament of penis releasing device |
| CN204468162U (en) * | 2015-01-21 | 2015-07-15 | 河南省洛阳正骨医院河南省骨科医院 | A kind of spinal column anterior cervical decompression posterior longitudinal ligament billhook |
| CN205795774U (en) * | 2016-06-03 | 2016-12-14 | 广州军区广州总医院 | A kind of Cervical posterior longitudinal ligament device for excising |
| CN207136889U (en) * | 2017-02-22 | 2018-03-27 | 遵义医学院 | A kind of Cervical posterior longitudinal ligament incision knife |
| CN208799291U (en) * | 2018-05-03 | 2019-04-30 | 重庆新珂琳雅医疗美容门诊部有限公司 | A kind of surgical knife with fin line knife |
| CN210697763U (en) * | 2019-06-10 | 2020-06-09 | 南昌大学第二附属医院 | Microscopical stripping knife for spinal cord operation |
-
2021
- 2021-11-22 CN CN202111388812.4A patent/CN113974783A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060263745A1 (en) * | 2005-05-20 | 2006-11-23 | Jeffrey Lasner | Periotome |
| CN201572149U (en) * | 2010-01-06 | 2010-09-08 | 聂林 | Anterior cervical posterior longitudinal ligament cutting hook knife |
| CN202069661U (en) * | 2011-04-28 | 2011-12-14 | 徐南伟 | Nerve dissector special for cervical vertebra |
| DE102013102049A1 (en) * | 2013-03-01 | 2014-09-18 | Stefan Neumeyer | Medical hand instrument |
| CN204147092U (en) * | 2014-09-23 | 2015-02-11 | 杨晓燕 | A kind of suspensory ligament of penis releasing device |
| CN204468162U (en) * | 2015-01-21 | 2015-07-15 | 河南省洛阳正骨医院河南省骨科医院 | A kind of spinal column anterior cervical decompression posterior longitudinal ligament billhook |
| CN205795774U (en) * | 2016-06-03 | 2016-12-14 | 广州军区广州总医院 | A kind of Cervical posterior longitudinal ligament device for excising |
| CN207136889U (en) * | 2017-02-22 | 2018-03-27 | 遵义医学院 | A kind of Cervical posterior longitudinal ligament incision knife |
| CN208799291U (en) * | 2018-05-03 | 2019-04-30 | 重庆新珂琳雅医疗美容门诊部有限公司 | A kind of surgical knife with fin line knife |
| CN210697763U (en) * | 2019-06-10 | 2020-06-09 | 南昌大学第二附属医院 | Microscopical stripping knife for spinal cord operation |
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