CN116549055A - Orthopedics vertebral lamina wire saw - Google Patents
Orthopedics vertebral lamina wire saw Download PDFInfo
- Publication number
- CN116549055A CN116549055A CN202310077372.3A CN202310077372A CN116549055A CN 116549055 A CN116549055 A CN 116549055A CN 202310077372 A CN202310077372 A CN 202310077372A CN 116549055 A CN116549055 A CN 116549055A
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- CN
- China
- Prior art keywords
- sheath
- wire saw
- wire
- orthopedic
- saw
- Prior art date
- 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
- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 16
- 238000005452 bending Methods 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 3
- 229920001606 poly(lactic acid-co-glycolic acid) Polymers 0.000 claims description 3
- 238000002684 laminectomy Methods 0.000 claims 3
- 238000007599 discharging Methods 0.000 abstract description 3
- 210000000278 spinal cord Anatomy 0.000 description 33
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 210000000988 bone and bone Anatomy 0.000 description 7
- 230000006378 damage Effects 0.000 description 7
- 208000035874 Excoriation Diseases 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 5
- 239000012634 fragment Substances 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 3
- 229960004275 glycolic acid Drugs 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000028389 Nerve injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008764 nerve damage Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 208000020431 spinal cord injury Diseases 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
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/149—Chain, wire or band saws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0801—Prevention of accidental cutting or pricking
- A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Dentistry (AREA)
- Pathology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention belongs to the technical field of medical appliances, and provides an orthopedic vertebral lamina wire saw, which comprises a wire saw wire and a sheath sleeved at one end of the wire saw wire; the sheath is arranged as a flexible tube; one end of the wire saw wire is sleeved in the sheath, and the end part of the wire saw wire positioned in the sheath is fixed in the sheath; a bending section is arranged on the sheath; the wire saw is sleeved with the sheath, the wire saw is fixed in the sheath, the sheath is provided with the flexible tube and can be bent, when a vertebra incision operation is carried out, the distal ends of the wire saw and the sheath are inserted into the spinal cavity first, when the spinal cavity is discharged, the wire saw is pulled to enable the bent section on the sheath to bend, so that the sheath is convenient for discharging the spinal cavity between two adjacent vertebrae with the wire saw.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to an orthopedic vertebral lamina wire saw.
Background
In spinal orthoses, there is a constant need to achieve a balance between achieving satisfactory orthoses and reducing or avoiding serious complications during vertebrotomy procedures. Once a spinal cord or nerve injury occurs intraoperatively, the consequences are often catastrophic; and the prognosis of patients is affected by complications such as excessive bleeding, loss of correction degrees, body unbalance and the like.
The inventor finds that the common vertebrae incision operation mostly adopts bone drill grinding and milling, cutting is stopped when the vertebrae are close to spinal cord, and the thin bone fragments are slowly clamped and taken out by adopting a tool, so that the thin bone fragments are extremely easy to scratch the spinal cord and cause irreparable damage, and meanwhile, the vertebrae incision operation process has long time, fine operation and extremely easy fatigue. The mode that the wire saw penetrates into the spinal cord cavity is adopted, the surface of the wire saw is very rough, the process is easy to cause abrasion to the spinal cord, meanwhile, the gap between vertebrae is narrow, and the wire saw is not easy to put in and pull out.
Disclosure of Invention
In order to solve the problems, the invention provides the orthopedic vertebral plate wire saw, which has the advantages that the protection effect on the spinal cord is realized in the whole process of entering the spinal cord cavity, exiting the spinal cord cavity and working, the abrasion injury on the spinal cord is avoided to the greatest extent, and the problems that the gap between vertebrae is narrow and the wire saw wire is not easy to put in and pull out are solved.
In order to achieve the above purpose, the invention provides an orthopaedics vertebral lamina wire saw, which adopts the following technical scheme:
an orthopaedics vertebral lamina wire saw comprises a wire saw wire and a sheath sleeved at one end of the wire saw wire;
the sheath is arranged as a flexible tube; one end of the wire saw wire is sleeved in the sheath, and the end part of the wire saw wire positioned in the sheath is fixed in the sheath; the sheath is provided with a bending section.
Further, the sheath is made of polylactic acid-glycolic acid copolymer material.
Further, the curved section is disposed near an end of the wire saw wire where the wire saw wire is fixed to the sheath.
Further, an end of the sheath remote from the curved section is provided with an operating portion.
Further, a circular groove is formed in the inner wall of the bending section.
Further, grid protrusions are arranged on one side of the outer side wall of the bending section.
Further, the grid protrusions comprise a plurality of protrusions which are evenly distributed at intervals, and grooves between every two protrusions are arc-shaped through holes.
Further, the diameter of the wire saw wire is not smaller than the inner diameter of the sheath.
Further, a cutting section is disposed on the sheath between the curved section and the distal end of the sheath.
Further, a handle is arranged at the end part of the wire saw wire far away from the sheath.
In order to achieve the above purpose, the invention provides an orthopaedics vertebral lamina wire saw, which adopts the following technical scheme:
compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the wire saw wire is sleeved with the sheath, the wire saw wire is fixed in the sheath, the sheath is provided with the flexible tube and can be bent, when a vertebra incision operation is carried out, the distal ends of the wire saw wire and the sheath are inserted into the spinal cavity first, and when the spinal cavity is discharged, the wire saw wire can be pulled to bend a bending section on the sheath, so that the sheath is convenient for discharging the spinal cavity between two adjacent vertebrae with the wire saw wire, and the sheath is arranged in the whole process of entering the spinal cavity, discharging the spinal cavity and working of the wire saw wire, so that the protection effect on the spinal cord is realized, the abrasion to the spinal cord is avoided to the greatest extent, and meanwhile, the problems of narrow gap between vertebrae and difficult placement and discharge of the wire saw wire are solved;
2. according to the invention, the grid protrusions are arranged on one side of the outer side wall of the bending section of the sheath, so that the bending control difficulty of the sheath is reduced, and meanwhile, the direction of bending the sheath when the wire saw wire is pulled is ensured;
3. the sheath is a flexible tube which can be cut by the wire saw wire, after the flexible tube is inserted into the spinal cavity, the wire saw wire can be directly operated, the wire saw wire cuts the sheath, and then the vertebrae are cut, so that the excessive operation of the sheath is avoided on the basis of avoiding the damage to the spinal cord;
4. the wire saw designed by the invention can improve the safety and convenience of operation; the whole structure is simple, and the cost is low; compared with the existing related products in the market, the method has stronger practicability and labor-saving operation, and accords with human engineering.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification, illustrate and explain the embodiments and together with the description serve to explain the embodiments.
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view of example 1 of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 in accordance with example 1 of the present invention;
FIG. 4 is a schematic view showing a bending state of embodiment 1 of the present invention;
FIG. 5 is a schematic view showing a cutting state of the sheath according to embodiment 1 of the present invention;
FIG. 6 is a schematic view showing the working state of embodiment 1 of the present invention;
FIG. 7 is a schematic representation of a vertebra of example 1 of the present invention;
wherein, 1, a handle; 2. wire saw wire; 3. a sheath; 31. a grid protrusion; 32. a circular groove; 33. an operation unit; 4. vertebrae; 5. spinal cord.
The specific embodiment is as follows:
the invention will be further described with reference to the drawings and examples.
Example 1:
as described in the background art, the traditional vertebral incision operation mostly adopts bone drill grinding and milling, cutting is stopped when the bone drill approaches to the spinal cord, and a tool is adopted to slowly clamp and take out the thin bone fragments, so that the thin bone fragments are extremely easy to scratch the spinal cord, and irreparable damage is caused; the mode that the wire saw penetrates into the spinal cord cavity is adopted, the surface of the wire saw is very rough, the process is easy to cause abrasion to the spinal cord, meanwhile, the gap between vertebrae is narrow, and the wire saw is not easy to put in and pull out. Aiming at the problems that the wire saw is easy to cause abrasion to the spinal cord, the wire saw is not easy to put in or pull out and the like, as shown in fig. 1, the embodiment provides an orthopedic vertebral lamina wire saw, which comprises a wire saw wire 2 and a sheath 3 sleeved at one end of the wire saw wire 2;
as shown in fig. 4, wherein the sheath 3 is provided as a flexible tube; one end of the wire saw wire 2 is sleeved in the sheath 3, and the end part of the wire saw wire 3 positioned in the sheath 3 is fixed in the sheath 3; the sheath 3 is provided with a bending section, such as section B in fig. 4. Specifically, establish sheath 3 in the overcoat of online saw silk 2, the wire saw silk is fixed in sheath 3, and sheath 3 sets up to flexible pipe, and is flexible when carrying out the vertebra and cut the operation, wire saw silk 2 with the distal end of sheath 3 inserts the spinal cord chamber earlier, and when going out the spinal cord chamber, the accessible pulls wire saw silk 2 makes the bending section on the sheath 3 crooked, and is convenient sheath 3 is taken wire saw silk 2 goes out the spinal cord chamber between two adjacent vertebrae, the setting of sheath 3 is in wire saw silk 1 gets into the spinal cord chamber, goes out the whole process of spinal cord chamber and work, has all realized the guard action to the spinal cord, furthest has avoided the injury problem that causes the spinal cord, has solved simultaneously that the clearance is narrow between the vertebra, the difficult problem of putting into and pulling out of wire saw silk.
In order to achieve the flexibility of the sheath 3 and achieve the purpose that the wire saw 2 can cut the sheath 3 and then cut vertebrae when working after the wire saw enters the pre-cutting position of the spinal cavity, the sheath 3 can be made of PolyLactic acid-glycolic acid copolymer (PolyLactic acid-co-GlycolicAcid, PLGA) material, and the PolyLactic acid-glycolic acid copolymer has good biocompatibility and is nontoxic. Specifically, after the wire saw enters the pre-cutting position of the spinal cord cavity, when cutting is performed, the wire saw wire 2 firstly cuts one side of the sheath 3, which is close to the vertebrae, and then cuts the vertebrae, and in the whole process, one side of the sheath 3, which is close to the spinal cord, is always kept motionless, so that the spinal cord is protected.
In order to facilitate the extraction of the end of the wire saw, which enters the spinal cavity, in the intervertebral space, the bending section is arranged at the end, which is close to the wire saw 2 and is fixed with the sheath 3, the end, which is far away from the bending section, of the sheath 3 is provided with an operation part, and the end, which is far away from the sheath 3, of the wire saw 2 is provided with a handle 1; when the wire saw is taken out of the intervertebral space, the whole sheath 3 is stable and motionless through the operation part, the wire saw wire 2 is pulled through the handle 1 when the whole sheath 3 is stable and motionless, the wire saw wire 2 and the sheath 3 are fixed, the wire saw wire 2 acts on the sheath 3, the bending section is bent, after bending, the end part of the wire saw, which is positioned in the spinal cavity, leaks out of the intervertebral space, and then the cutting position on the wire saw is adjusted to enter the pre-cutting position of the spinal cavity.
As shown in fig. 2 and 3, in order to improve the flexibility of bending the bending section, a circular groove 32 is formed on the inner wall of the bending section, so that the wire saw 2 and the inner wall of the sheath 3 are not contacted in the bending section when bending occurs, and friction force is reduced. Meanwhile, a grid protrusion 31 is arranged on one side of the outer side wall of the bending section, the grid protrusion 31 comprises a plurality of protrusions which are uniformly distributed at intervals, and a groove between every two protrusions is an arc through hole; specifically, after the wire saw enters the pre-cutting position of the spinal cavity, one side provided with the grid protrusions 31 is close to the vertebrae, after the sheath 3 is stressed, the bent section is guaranteed to bend towards the outer end of the intervertebral space, so that the end part of the wire saw, which is positioned in the spinal cavity, leaks out of the intervertebral space, and damage to the spinal cord due to the fact that the bent section bends towards the spinal side is avoided.
The diameter of the wire saw wire 2 is not smaller than the inner diameter of the sheath 3; with the help of the flexibility of the sheath 3, the wire saw 2 is in close contact with the sheath 3, the phenomenon that the outer wall of the sheath 3 is stressed to be folded and the like in the process that the wire saw enters a spinal cavity is avoided, if the outer wall of the sheath 3 is folded under the action of vertebrae, excessive compression can be caused on the spinal cord, in the bending process of the bending part and the cutting process of the wire saw 2, the sheath 3 can also be expanded and contracted in an unstable mode due to the existence of folds and the like, the cutting precision is affected, and even damage to the spinal cord can be caused.
As shown in fig. 5, a cutting section is disposed between the bending section and the distal end of the sheath on the sheath 3, and the cutting section is located at the inner side of the fixed connection position between the wire saw wire 2 and the sheath 3, where the cutting section is shown as section C in fig. 5. After the end part of the wire saw, which is positioned in the spinal cavity, leaks out of the intervertebral space and enters the pre-cutting position of the spinal cavity, the sheath 3 is cut at the cutting section along the circumferential direction, at this time, the wire saw wire 2 can move left and right in the sheath 3, the wire saw wire 2 is operated to cut, and in the cutting process, the position of the sheath 3 in the spinal cavity is fixed through the operation part on the sheath 3, so that the spinal cord is always protected.
The working principle or process of the embodiment is as follows:
as shown in fig. 6 and 7, when the wire saw 2 with the sheath 3 is sent into the vertebral cavity and the wire saw is needed to be taken out from the end part of the wire saw entering the vertebral cavity in the vertebral space, the sheath 3 is fixed by the operation part, the handle 1 pulls the wire saw 2 to bend the bending section, after bending, the end part of the wire saw positioned in the spinal cavity leaks out from the vertebral space, and then the cutting position on the wire saw is adjusted to enter the pre-cutting position of the spinal cavity; as shown in fig. 7, the spinal cavity is located within the vertebrae 4, and after wiresaw access, between the vertebrae 4 and the spinal cord 5;
after the wire saw enters the pre-cutting position of the spinal cavity, the sheath 3 is cut along the circumferential direction at the cutting section, the wire saw wire 2 is operated to cut, in the cutting process, the sheath 3 is firstly cut, and after one side of the sheath 3, which is close to the vertebrae 4, is cut, the vertebrae 4 is cut.
The above description is only a preferred embodiment of the present embodiment, and is not intended to limit the present embodiment, and various modifications and variations can be made to the present embodiment by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present embodiment should be included in the protection scope of the present embodiment.
Claims (10)
1. The orthopedic vertebral lamina wire saw is characterized by comprising a wire saw wire and a sheath sleeved at one end of the wire saw wire;
the sheath is arranged as a flexible tube; one end of the wire saw wire is sleeved in the sheath, and the end part of the wire saw wire positioned in the sheath is fixed in the sheath; the sheath is provided with a bending section.
2. The orthopedic laminectomy saw of claim 1, wherein the sheath comprises a poly (lactic-co-glycolic acid) material.
3. The orthopedic vertebral plate wiresaw of claim 1 wherein said curved section is disposed adjacent an end of said wiresaw secured to said sheath.
4. The orthopedic laminar wire saw of claim 3 wherein the end of said sheath remote from said curved section is provided with an operating portion.
5. The orthopedic vertebral plate wiresaw of claim 3 wherein the inner wall of said curved section defines a circular recess.
6. The orthopedic laminectomy saw of claim 3 wherein the curved section is provided with a grid projection on one side of the outer sidewall.
7. The orthopedic laminar wire saw of claim 6 wherein said lattice projections comprise a plurality of uniformly spaced projections, and wherein the grooves between each two projections are arcuate through holes.
8. The orthopedic laminboard wiresaw of claim 1, wherein the wiresaw wire has a diameter not less than the inner diameter of the sheath.
9. The orthopedic laminectomy saw of claim 1 wherein a cutting section is disposed on the sheath between the curved section and the distal end of the sheath.
10. The orthopedic laminboard wiresaw of claim 1, wherein the end of said wiresaw distal from said sheath is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310077372.3A CN116549055A (en) | 2023-01-31 | 2023-01-31 | Orthopedics vertebral lamina wire saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310077372.3A CN116549055A (en) | 2023-01-31 | 2023-01-31 | Orthopedics vertebral lamina wire saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116549055A true CN116549055A (en) | 2023-08-08 |
Family
ID=87497185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310077372.3A Pending CN116549055A (en) | 2023-01-31 | 2023-01-31 | Orthopedics vertebral lamina wire saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116549055A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643178A (en) * | 1984-04-23 | 1987-02-17 | Fabco Medical Products, Inc. | Surgical wire and method for the use thereof |
| CN2684774Y (en) * | 2004-03-19 | 2005-03-16 | 张作仁 | Scroll saw with protective cover |
| CN201510321U (en) * | 2009-09-15 | 2010-06-23 | 肖建如 | Security fretsaw guide sleeve |
| US20110160731A1 (en) * | 2004-10-15 | 2011-06-30 | Bleich Jeffery L | Devices and methods for tissue access |
| CN110448350A (en) * | 2019-09-20 | 2019-11-15 | 上海市第六人民医院 | A kind of osteotomy scroll saw |
| CN211022920U (en) * | 2019-07-30 | 2020-07-17 | 汲长蛟 | Wire saw control and protection device for spine total centrum resection |
| CN111714182A (en) * | 2020-06-15 | 2020-09-29 | 中国人民解放军总医院 | Intervertebral space separation system for thoracolumbar tumor mass total-resection operation |
-
2023
- 2023-01-31 CN CN202310077372.3A patent/CN116549055A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643178A (en) * | 1984-04-23 | 1987-02-17 | Fabco Medical Products, Inc. | Surgical wire and method for the use thereof |
| CN2684774Y (en) * | 2004-03-19 | 2005-03-16 | 张作仁 | Scroll saw with protective cover |
| US20110160731A1 (en) * | 2004-10-15 | 2011-06-30 | Bleich Jeffery L | Devices and methods for tissue access |
| CN201510321U (en) * | 2009-09-15 | 2010-06-23 | 肖建如 | Security fretsaw guide sleeve |
| CN211022920U (en) * | 2019-07-30 | 2020-07-17 | 汲长蛟 | Wire saw control and protection device for spine total centrum resection |
| CN110448350A (en) * | 2019-09-20 | 2019-11-15 | 上海市第六人民医院 | A kind of osteotomy scroll saw |
| CN111714182A (en) * | 2020-06-15 | 2020-09-29 | 中国人民解放军总医院 | Intervertebral space separation system for thoracolumbar tumor mass total-resection operation |
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