CN112998786B - Opening device for opening and resetting atlantoaxial dislocation - Google Patents
Opening device for opening and resetting atlantoaxial dislocation Download PDFInfo
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- CN112998786B CN112998786B CN202110392719.4A CN202110392719A CN112998786B CN 112998786 B CN112998786 B CN 112998786B CN 202110392719 A CN202110392719 A CN 202110392719A CN 112998786 B CN112998786 B CN 112998786B
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- 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
- A61B17/025—Joint distractors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
- A61B17/7076—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation
- A61B17/7077—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation for moving bone anchors attached to vertebrae, thereby displacing the vertebrae
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
-
- 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
- A61B17/025—Joint distractors
- A61B2017/0256—Joint distractors for the spine
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
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- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to the technical field of medical instruments, in particular to a spreader for propping and resetting atlantoaxial dislocation. This kind of a prop up ware that is used for extensive region epistrophium to separate to strut and resets, actuating mechanism is used for controlling first brace piece, second brace piece antiport and struts and fold with removing in opposite directions, it has the first slide that extends along first brace piece length direction to open on the first brace piece, open first slide bottom has first locating hole, open on the second brace piece have along the second brace piece length direction extend the second slide, and open second slide bottom has the second locating hole, first slide is relative and parallel arrangement with the second slide. The distractor for distraction reduction of the atlantoaxial dislocation ensures the space between the corresponding centrums through the driving mechanism in the distraction process, can release two hands after distraction, and avoids misoperation; the two ends of the titanium rod are respectively limited in the fixing process, so that the titanium rod cannot move or incline, and the operation time and the operation difficulty are effectively saved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a spreader for propping and resetting atlantoaxial dislocation.
Background
The key technology of the prior art for treating the atlantoaxial dislocation lies in fully decompressing the compressed spinal cord and reliably fixing the compressed spinal cord in the internal fixation, wherein whether the distraction reduction is successful or not directly influences the recovery condition of the postoperative symptoms of the patient. Therefore, distraction reduction is also critical to the success of the procedure.
The spine consists of a plurality of sections of intervertebral discs and vertebral bodies which are overlapped in an up-down staggered manner, when a certain section of intervertebral disc is damaged, the spine needs to be connected with the corresponding vertebral body through a titanium rod, namely, a spine screw rod operation, so as to support the weight of a person, wherein the titanium rod is screwed into the corresponding vertebral body through a screw. In the process of spinal column screw rod operation, a distracter is needed, namely, a screw on a titanium rod is screwed into a corresponding vertebral body but is not screwed completely, namely, the screw drives the corresponding vertebral body to slide on the titanium rod, then the distracter relatively distracts the screw, and after the screw drives the corresponding vertebral body to slide on the titanium rod to a proper position, the screw is screwed again, so that the damaged intervertebral disc is replaced by the titanium rod.
Although there are a lot of differences in the fixed ware of strutting of nail stick system that uses in present clinical work, still have a great deal of problem in the clinical operation, for solving above-mentioned problem, the utility model patent that patent number is CN201820784184.9 discloses a struts ware for spinal nail stick operation, and the opening that will strut ware peridium formula tong mouth when this kind of ware of strutting uses aligns the titanium stick, and axial adjustment tong arm makes tong mouth peridium formula recess block the titanium stick to position when strutting is adjusted with the surrounding tissue relation according to the tong mouth. The distractor for the spinal nail rod operation has the following problems that firstly, the distracting forceps are easy to slip from a titanium rod in the process of distraction reduction, the operation risk is increased, and even irreparable consequences are caused to a patient; secondly, the opening state can not be continuously kept in the operation, and the nut is not convenient to screw after opening; thirdly, the opening direction of the opener is inclined opening, the stress direction is uneven, and the opening process is laborious. Therefore, the surgical instrument which can continuously keep the distraction state and is convenient for an operator to screw the screw cap and can safely and effectively complete distraction reduction is provided, and the problem to be solved in the operation for treating the atlantoaxial dislocation is urgently needed.
Disclosure of Invention
In order to solve the problems, the invention provides a spreader for the atlantoaxial dislocation spreading reduction.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows, and the distractor for distraction reduction of the atlantoaxial dislocation is characterized in that: the device comprises a first supporting piece, a second supporting piece and a driving mechanism, wherein the first supporting piece and the second supporting piece are respectively connected with the driving mechanism, the driving mechanism is used for controlling the first supporting piece and the second supporting piece to move reversely to be opened and moved oppositely to be closed, the first supporting piece is provided with a first slide way extending along the length direction of the first supporting piece, the bottom of the first slide way is provided with a first positioning hole, the second supporting piece is provided with a second slide way extending along the length direction of the second supporting piece, the bottom of the second slide way is provided with a second positioning hole, and the first slide way and the second slide way are arranged oppositely and parallelly; the limiting mechanism is arranged on the first supporting piece and the second supporting piece and used for limiting the first supporting piece and the second supporting piece to move reversely; stop gear includes ejector pin and nut, ejector pin one end be with first stay piece fixed connection's stiff end, the other end is for opening the spacing end of screw thread, the second props the spacing hole that the spacing end that opens on the piece has the confession ejector pin to pass, the spacing end of ejector pin passes nut and spacing hole in proper order.
Furthermore, the driving mechanism is arranged on the side edges of the first supporting piece and the second supporting piece and is arranged in a way of stepping away from the openings of the first slide way and the second slide way.
Furthermore, the driving mechanism comprises a sliding rail and a driving block, the first supporting piece is fixedly connected with the sliding rail, the second supporting piece is slidably arranged on the sliding rail, and the driving block is connected with the second supporting piece and used for controlling the second supporting piece to move on the sliding rail.
Furthermore, scales are arranged on the sliding rail, and the initial positions of the scales are overlapped with the fixed positions of the first supporting pieces.
Furthermore, a first notch communicated with the first positioning hole is formed in the bottom of the first supporting sheet, a second notch communicated with the second positioning hole is formed in the bottom of the second supporting sheet, and the first notch and the second notch are arranged in parallel relatively.
Furthermore, the device also comprises an elastic gasket which is detachably connected in the first positioning hole and the second positioning hole respectively.
Furthermore, a groove is formed in the first supporting piece, the fixed end of the ejector rod is arranged in the groove, and the depth of the groove is larger than or equal to the height of the nut.
Furthermore, a magnet ring is arranged outside the limiting hole of the second support piece, and the magnet ring sucks out the nut from the groove when the first support piece and the second support piece are separated.
The supporting device for the atlantoaxial dislocation distraction reduction, which is provided by the invention, can be used for supporting or closing the lateral joints of the atlantoaxial dislocation of a patient by controlling the relative movement of the first supporting sheet and the second supporting sheet through the driving mechanism, the distance between corresponding vertebral bodies is ensured through the driving mechanism in the supporting process, and the release of both hands can be realized after the supporting, so that the misoperation is avoided; can realize the quick installation of titanium stick through first slide, second slide, the fixed in-process both ends of titanium stick are restricted by first locating hole and second locating hole respectively, can not remove and slope, and effectual operation time and the operation degree of difficulty of saving.
Drawings
FIG. 1 is a schematic structural view of a distractor for distraction reduction of atlantoaxial dislocation;
FIG. 2 is a schematic structural view of the distractor for distraction reduction of atlantoaxial dislocation during distraction;
FIG. 3 is a schematic structural view of the opening device for opening and reduction of atlantoaxial dislocation when closed;
FIG. 4 is a schematic structural view of a distractor driving block for distraction reduction of atlantoaxial dislocation;
Detailed Description
In order to better understand the technical solution of the present invention, the present invention is further described below by specific examples.
Referring to fig. 1 to 4, a distractor for distraction reduction of atlantoaxial dislocation comprises a first support sheet 1, a second support sheet 2, a driving mechanism 3 and a limiting mechanism 4;
the first supporting piece 1 is provided with a first slideway 11 extending along the length direction of the first supporting piece 1, the bottom of the first slideway 11 is provided with a first positioning hole 12, the bottom of the first supporting piece 1 is provided with a first gap 13, the first positioning hole is internally provided with a first elastic gasket 14, and the first elastic gasket 14 is detachably connected with the first positioning hole 12;
the second supporting piece 2 is provided with a second slide rail 21 extending along the length direction of the second supporting piece 2, the bottom of the second slide rail 21 is provided with a second positioning hole 22, the bottom of the second supporting piece 2 is provided with a second gap 23, an elastic gasket II 24 is arranged in the second positioning hole 22, the elastic gasket II 24 is detachably connected with the second positioning hole 22, and the first slide rail 11 and the second slide rail 21 as well as the first gap 13 and the second gap 23 are arranged oppositely and in parallel;
the driving mechanism 3 comprises a sliding rail 31 and a driving block 32, the sliding rail 31 is connected with the side surfaces of the first supporting piece 1 and the second supporting piece 2, preferably arranged at 90 degrees with the first supporting piece 1 and the second supporting piece 2, and arranged at a way of being away from the openings of the first slideway 11 and the second slideway 21, the first supporting piece 1 is fixed with the sliding rail 31 and arranged at a way of being away from the opening of the first slideway 11, the second supporting piece 2 is arranged on the sliding rail 31 in a sliding way through the driving block 32, the sliding rail 31 is provided with a rack 311, the driving block 32 is provided with a gear 312 engaged with the rack 311, the gear 312 is used for controlling the moving distance of the second supporting piece 2 on the sliding rail 31, and is used for controlling the first supporting piece 1 and the second supporting piece 2 to move reversely to open or move oppositely to close; the slide rail 31 is provided with a scale 313, the initial position of the scale 313 is superposed with the fixed position of the first support sheet 1, and the scale is used for measuring the displacement distance between the second support sheet 2 and the first support sheet 1;
the limiting mechanism 4 comprises a mandril 41 and a nut 42, one end of the mandril 41 is a fixed end fixedly connected with the first supporting sheet 1, the other end is a limiting end provided with threads, the first supporting plate 1 is provided with a groove 15, the fixed end of the mandril 41 is arranged in the groove 15, the depth of the groove 15 is more than or equal to the height of the nut 42, a limit hole 25 for the limit end of the mandril to pass through is arranged on the second supporting plate 2, the limiting end of the mandril 41 sequentially penetrates through the nut 42 and the limiting hole 25, the nut 42 is accommodated in the groove when the first supporting sheet 1 and the second supporting sheet 2 are folded, the nut 42 is locked on the mandril when the first supporting sheet 1 and the second supporting sheet 2 are unfolded, the first supporting sheet 1 and the second supporting sheet 2 are limited to move reversely, a magnet ring is arranged outside the limiting hole 25 of the second supporting piece 2, and the nut 42 is sucked out of the groove 15 by the magnet ring when the first supporting piece 1 and the second supporting piece 2 are separated.
As shown in fig. 1 to 4, during surgery, the first supporting sheet 1 and the second supporting sheet 2 are folded together, the first supporting sheet 1 and the second supporting sheet 2 are of a sheet structure and are easily inserted between corresponding vertebral bodies, the second supporting sheet 2 is adjusted by the driving block 32, the second supporting sheet 2 moves in the reverse direction towards the first supporting sheet 1 to unfold the lateral joints of the atlantoaxial dislocation of the patient, the unfolded position can be checked through the scales 313 on the sliding rail 31 during the moving process, the nut 42 is locked at the limit end after moving to a proper position, the nut 42 is abutted against the second supporting sheet 2 to be unfolded, the first supporting sheet 1 and the second supporting sheet 2 are supported by the supporting force of the nut 42 and the ejector rod 41, the space between the corresponding vertebral bodies is ensured, both hands can be released at this time, and the second supporting sheet 2 is prevented from being displaced towards the first supporting sheet 1 due to misoperation;
the method comprises the following steps that a titanium rod 100 is used, two ends of the titanium rod 100 are placed downwards along a first slide rail 11 and a second slide rail 21, when the titanium rod 100 is placed at a designated position, two ends of the titanium rod 100 extend out of a first positioning hole 12 and a second positioning hole 22 and are limited by a first elastic gasket 14 and a second elastic gasket 24, vibration of the titanium rod 100 is reduced in the first elastic gasket 14 and the second elastic gasket 24, secondary damage during surgery is reduced, recovery is accelerated, two ends of the titanium rod 100 are screwed into different vertebral bodies on a spine through screws respectively, the corresponding vertebral bodies are fixed, and finally two ends of the titanium rod 100 are taken out of a first gap 12 and a second gap 23 respectively to release the titanium rod 100;
after the operation, the nut 42 is loosened, the nut 42 is retracted into the groove 15, and the driving block 32 controls the second supporting sheet 2 to move reversely to be folded with the first supporting sheet 1.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents and modifications within the scope of the description.
Claims (8)
1. A strut ware that is used for extensive region dentata dislocation to strut and resets, its characterized in that: the device comprises a first supporting piece, a second supporting piece and a driving mechanism, wherein the first supporting piece and the second supporting piece are respectively connected with the driving mechanism, the driving mechanism is used for controlling the first supporting piece and the second supporting piece to move reversely to be opened and moved oppositely to be closed, the first supporting piece is provided with a first slide way extending along the length direction of the first supporting piece, the bottom of the first slide way is provided with a first positioning hole, the second supporting piece is provided with a second slide way extending along the length direction of the second supporting piece, the bottom of the second slide way is provided with a second positioning hole, and the first slide way and the second slide way are arranged oppositely and parallelly; the limiting mechanism is arranged on the first supporting piece and the second supporting piece and used for limiting the first supporting piece and the second supporting piece to move reversely; stop gear includes ejector pin and nut, ejector pin one end be with first stay piece fixed connection's stiff end, the other end is for opening the spacing end of screw thread, the second props the spacing hole that the spacing end that opens on the piece has the confession ejector pin to pass, the spacing end of ejector pin passes nut and spacing hole in proper order.
2. The distractor for atlantoaxial dislocation distraction reduction of claim 1, wherein: the driving mechanism is arranged on the side edges of the first supporting piece and the second supporting piece and abduces from the openings of the first slide way and the second slide way.
3. The distractor for atlantoaxial dislocation distraction reduction according to claim 1 or 2, wherein: the driving mechanism comprises a sliding rail and a driving block, the first supporting piece is fixedly connected with the sliding rail, the second supporting piece is arranged on the sliding rail in a sliding mode, and the driving block is connected with the second supporting piece and used for controlling the second supporting piece to move on the sliding rail.
4. The distractor for atlantoaxial dislocation distraction reduction of claim 3, wherein: the sliding rail is provided with scales, and the initial positions of the scales are overlapped with the fixed positions of the first supporting pieces.
5. The distractor for atlantoaxial dislocation distraction reduction of claim 1, wherein: the bottom of the first supporting sheet is provided with a first notch communicated with the first positioning hole, the bottom of the second supporting sheet is provided with a second notch communicated with the second positioning hole, and the first notch and the second notch are arranged in parallel relatively.
6. The distractor for atlantoaxial dislocation distraction reduction of claim 1, wherein: still include the elastic gasket, the elastic gasket is respectively detachable and connects in first locating hole, second locating hole.
7. The distractor for atlantoaxial dislocation distraction reduction of claim 1, wherein: the first supporting piece is provided with a groove, the fixed end of the ejector rod is arranged in the groove, and the depth of the groove is larger than or equal to the height of the nut.
8. The distractor for atlantoaxial dislocation distraction reduction of claim 7, wherein: and a magnet ring is arranged outside the limiting hole of the second support piece, and the magnet ring sucks out the nut from the groove when the first support piece and the second support piece are separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110392719.4A CN112998786B (en) | 2021-04-13 | 2021-04-13 | Opening device for opening and resetting atlantoaxial dislocation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110392719.4A CN112998786B (en) | 2021-04-13 | 2021-04-13 | Opening device for opening and resetting atlantoaxial dislocation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112998786A CN112998786A (en) | 2021-06-22 |
| CN112998786B true CN112998786B (en) | 2022-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110392719.4A Active CN112998786B (en) | 2021-04-13 | 2021-04-13 | Opening device for opening and resetting atlantoaxial dislocation |
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| Country | Link |
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| CN (1) | CN112998786B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102743216A (en) * | 2012-06-26 | 2012-10-24 | 冯其金 | External thoracolumbar vertebra distraction repositor |
| CN105361934A (en) * | 2015-12-08 | 2016-03-02 | 邵阳市中医医院 | Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8444649B2 (en) * | 2008-07-07 | 2013-05-21 | Depuy Spine, Inc. | System and method for manipulating a spinal construct |
| US8287546B2 (en) * | 2008-07-31 | 2012-10-16 | Zimmer Spine, Inc. | Surgical instrument with integrated compression and distraction mechanisms |
| US9480504B1 (en) * | 2013-03-15 | 2016-11-01 | Nuvasive, Inc. | Spinal alignment frame |
| CN107582112B (en) * | 2017-09-08 | 2019-06-07 | 山东威高骨科材料股份有限公司 | Device for spreading between a kind of centrum |
| EP3958759A4 (en) * | 2019-04-23 | 2022-12-07 | Warsaw Orthopedic, Inc. | Surgical system and method |
| CN112006733A (en) * | 2020-09-10 | 2020-12-01 | 安徽医科大学第一附属医院 | Lateral interarticular dilator for atlantoaxial dislocation |
-
2021
- 2021-04-13 CN CN202110392719.4A patent/CN112998786B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102743216A (en) * | 2012-06-26 | 2012-10-24 | 冯其金 | External thoracolumbar vertebra distraction repositor |
| CN105361934A (en) * | 2015-12-08 | 2016-03-02 | 邵阳市中医医院 | Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device |
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| Publication number | Publication date |
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| CN112998786A (en) | 2021-06-22 |
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