CN109893207A - A kind of minimally invasive osteotome of backbone scope - Google Patents
A kind of minimally invasive osteotome of backbone scope Download PDFInfo
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- CN109893207A CN109893207A CN201910328153.1A CN201910328153A CN109893207A CN 109893207 A CN109893207 A CN 109893207A CN 201910328153 A CN201910328153 A CN 201910328153A CN 109893207 A CN109893207 A CN 109893207A
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- truncated cone
- tube body
- beater plate
- circular beater
- column spinner
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Abstract
The invention discloses a kind of minimally invasive osteotomes of backbone scope, including circular beater plate and column spinner, the edge of circular beater plate is set as zigzag, the first truncated cone-shaped protrusion is provided in the middle part of circular beater plate, one end of column spinner is provided with the second truncated cone-shaped protrusion, first truncated cone-shaped protrusion and the angle between the side and bottom surface of the second truncated cone-shaped protrusion are 45 degree, the side of first truncated cone-shaped protrusion and the second truncated cone-shaped protrusion is provided with strip projected parts, the column spinner other end is connect with extraneous motor, bearing is socketed on column spinner, Bearing outer is fixedly connected with tube body, the upper end of tube body is provided with shaft, shaft is fixedly connected through the center of circular beater plate with tube body, bearing is also equipped in shaft, bearing is fixedly connected with shaft and circular beater plate respectively, it is recessed inwardly close to the tube wall of the tube body of circular beater plate one end so that the opening of tube body is strip Shape.The minimally invasive osteotome can effectively solve the problems, such as that the existing excision efficiency of existing osteotome is slow, cannot change excision direction.
Description
Technical field
The invention belongs to minimally invasive osteotome technical fields, and in particular to a kind of minimally invasive osteotome of backbone scope.
Background technique
In spinal surgery, centrum osteophytosis or bone fragment, which charge into canalis spinalis spinal cord or root compression caused to can produce, to be faced
Bed symptom, operation excision cause to press object and obtain the method that nerve is loosened to claim decompression.Conventional method has centrum anterior decompression and side
Front decompression, decompression operation method traditional type is that the centrum rear for charging into canalis spinalis is cut with osteotome or osteotome, and osteotome is cut need to be more
Secondary jarring centrum and spinal cord, while being struck off again with curet after chiseling, there is a problem of that excision efficiency is slow.And tradition Cloward ring
It drills through bone object to be made of the hollow trepan main body bar of a set of osteotome main body bar and set outside, the purpose of osteotome is risen for trepan
Guiding role, trepan, which is covered, is rotated down trepan in osteotome bar, so that the teeth of its cavity ring drill bit is cut a circle centrum sclerotin, reaches
After predetermined depth, trepan and osteotome are taken out, then taken out with the cylindrical bone block that curet cuts cavity ring drilling；The disadvantage is that trepan
Head diameter and cut direction are fixed, and embody different range decompression operation using being limited, for different directions protrusion in art
Irregular bone can not accurately be cut off.
Summary of the invention
For above-mentioned deficiency in the prior art, the present invention provides a kind of minimally invasive osteotome of backbone scope, the minimally invasive osteotomes
It can effectively solve the problems, such as that the existing excision efficiency of existing osteotome is slow, excision direction cannot be changed.
To achieve the above object, the technical solution adopted by the present invention to solve the technical problems is: a kind of backbone scope is micro-
Osteotome, including circular beater plate and column spinner are created, the edge of circular beater plate is set as zigzag, is provided with first in the middle part of circular beater plate
Truncated cone-shaped protrusion, one end of column spinner are provided with the second truncated cone-shaped protrusion, the first truncated cone-shaped protrusion and the second truncated cone-shaped protrusion
Angle between side and bottom surface is 45 degree, and the side of the first truncated cone-shaped protrusion and the second truncated cone-shaped protrusion is provided with strip
Protrusion, circular beater plate and column spinner are mutually twisted by strip projected parts, and the column spinner other end is connect with extraneous motor, on column spinner
It is socketed with bearing, Bearing outer is fixedly connected with tube body, and the upper end of tube body is provided with shaft, and shaft runs through the center of circular beater plate
It is fixedly connected with tube body, bearing is also equipped in shaft, bearing is fixedly connected with shaft and circular beater plate respectively, close to circular knife
The tube wall of disk one end tube body is recessed inwardly so that the opening of tube body is strip.
It takes and has the beneficial effect that the edge of circular beater plate is set as zigzag caused by above scheme, it can be to affected part
Bone tissue is cut, and the section of the first truncated cone-shaped protrusion and the second truncated cone-shaped protrusion is circle, since the first truncated cone-shaped is convex
The angle risen between the second truncated cone-shaped protrusion side and bottom surface is 45 degree, and the first truncated cone-shaped protrusion and the second truncated cone-shaped is convex
The side overlapping risen, the first truncated cone-shaped protrusion and the second truncated cone-shaped protrusion are orthogonal state at this time, due to the first rotary table
It is provided with strip bulge on the side of shape protrusion and the second truncated cone-shaped protrusion, is the state being mutually twisted between strip bulge,
When work, column spinner rotates driven by the motor, and column spinner drives the first rotary table by the interlocking between strip bulge
The rotation of shape protrusion, and then realize and drive circular beater plate rotation, it realizes the purpose of cutting, since circular beater plate is laminated structure, leads to
It crosses column spinner and drives rotation, rotate the direction of column spinner, can arbitrarily control the cut direction of circular beater plate, it is special for some shapes
The bone tissue of different protrusion has good cutting effect, and the efficiency cut is higher.
The outside of column spinner is socketed with tube body, bearing is provided between tube body and column spinner, tube body top is fixedly connected
There is shaft, shaft runs through the center of circular beater plate, and for fixing circular beater plate, circular beater plate is can be improved in the bearing being arranged in shaft
The stability of rotation improves accuracy when cutting.Tube body can both coat column spinner and part circular cutterhead, avoid justifying
The exposure of shape cutterhead is excessive, and when use causes to damage to others tissue, and can play fixed effect, and column spinner can be in tube body
Stable rotation is carried out by bearing, reduces the problem that inaccuracy is cut as caused by the vibration of column spinner.The osteotome can be from
Multiple directions cut bone tissue, improve the efficiency and effect of cutting, with simple, the easily operated advantage of framework.
The opening of strip passes through for circular beater plate, and the edge of tube body is arranged to aduncate, circular beater plate
There is 1/2 to be exposed to outside tube body, remaining structure, which is all set in, is coated on tubular body, and so that whole device is seemed more succinct,
Beauty also can avoid bone tissue cut etc. and enter in strip bulge, the rotation of circular beater plate influenced, moreover, by the side of tube body
Edge is arranged to the aduncate volume for reducing tube body front end, in cutting Shi Jike to avoid other tissues are touched, keeps away
Exempt from that remaining tissue is caused to damage, the movable space of circular beater plate can also be increased, facilitates the progress of cutting operation.
Further, the first truncated cone-shaped protrusion is consistent with the chamfer length of the second truncated cone-shaped protrusion.
It takes and has the beneficial effect that the first truncated cone-shaped protrusion and the second truncated cone-shaped protrusion are completely mutual caused by above scheme
Contact occlusion, keeps the conducting effect of power more stable, and vibration when cutting is smaller, and cutting effect is more preferable.
Further, the basal diameter of the first truncated cone-shaped protrusion is greater than the basal diameter of the second truncated cone-shaped protrusion.
The basal diameter for having the beneficial effect that the first truncated cone-shaped protrusion caused by above scheme is taken to be greater than the second truncated cone-shaped
The basal diameter of protrusion, when the second truncated cone-shaped protrusion one circle of rotation, the first truncated cone-shaped protrusion can have lower than a circle, the design
Effect plays the purpose for reducing rotary head revolving speed, when cutting the bone tissue of some special shapes, reduces as needed round
The revolving speed of cutterhead improves cutting effect and stability.
Further, there are two bearing settings, the lower part and middle part of column spinner are respectively arranged at.
Take had the beneficial effect that caused by above scheme two bearings can further improve column spinner rotation when it is steady
It is qualitative, improve the effect of cutting；Since tube wall is tapered, there are certain seams between the bearing and tube wall in the middle part of tube wall
Gap, the gap are filled by filling part, make to be in close contact between bearing and tube body, reduce vibration amplitude when rotation.
Further, the diameter of tube body far from circular beater plate one end is gradually reduced, until with bearing touch and fixed connect
It connects.
It takes and is had the beneficial effect that caused by above scheme and be provided with filling part in tube body, it will be between bearing and tube body
Gap filling, so that the other end of tube body was connected as one by bearing and column spinner, when operation, only need to be by column spinner and electricity
Machine connection avoids tube body from influencing operator and operates, improves the convenience of operation.
Further, the diameter of circular beater plate is 5-6mm.
Further, the length of tube body is 120-150mm.
Taking the diameter that tube body is had the beneficial effect that caused by above scheme is 6-8mm, the circular beater plate and pipe of the size
Stability and cutting effect when body can further improve cutting, and the circular beater plate of the size can pass through existing intervertebral
The operating system of aperture mirror facilitates carry out cutting operation.
In conclusion can be performed the operation behaviour by foramen intervertebrale lens the invention has the following advantages that osteotome diameter of the invention is smaller
Make system to cut the bone tissue of patient, the effect of cutting is preferable, high-efficient；The cutterhead of the osteotome is flat sheet knot
Structure, by rotate rotary shaft arbitrarily circular beater plate can be rotated, allow circular beater plate from multiple directions to bone tissue into
Row cutting, it is preferable for the cutting effect of some serious bone tissues of deformation；And the speed of the osteotome is adjustable, passes through the first circle
Platform shape protrusion and the second truncated cone-shaped protrusion can play the purpose of adjustment circular beater plate revolving speed, to meet the needs of cutting.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of minimally invasive osteotome of the invention；
Fig. 2 is the overlooking structure diagram of minimally invasive osteotome；
Fig. 3 is the structural schematic diagram of tube body；
Fig. 4 is the overlooking structure diagram of circular beater plate；
Fig. 5 is the structural schematic diagram of circular beater plate；
Fig. 6 is the structural schematic diagram of column spinner；
Wherein, 1, circular beater plate；2, column spinner；3, the first truncated cone-shaped protrusion；4, the second truncated cone-shaped protrusion；5, strip is convex
It rises；6, bearing；7, tube body；8, shaft.
Specific embodiment
Specific embodiments of the present invention will be described in detail with reference to the accompanying drawing.
In one embodiment of the present of invention, as shown in figures 1 to 6, a kind of minimally invasive osteotome of backbone scope, including circle are provided
Cutterhead 1 and column spinner 2, the edge of circular beater plate 1 is set as zigzag, convenient to cut to bone tissue, and cutting can be improved
Efficiency and effect；The first truncated cone-shaped protrusion 3 is provided in the middle part of circular beater plate 1, it is convex that one end of column spinner 2 is provided with the second truncated cone-shaped
4 are played, the angle between the first truncated cone-shaped protrusion 3 and the side and bottom surface of the second truncated cone-shaped protrusion 4 is 45 degree, the first truncated cone-shaped
The side of protrusion 3 and the second truncated cone-shaped protrusion 4 is provided with strip projected parts 5, and the first truncated cone-shaped protrusion 3 and the second round bar shape is convex
It plays 4 side to contact with each other, be just mutually twisted between strip projected parts 5, circular beater plate 1 and column spinner 2 are mutual by strip projected parts 5
It is connected, under the rotation of column spinner 2, circular beater plate 1 can be driven to rotate, realize the purpose of cutting, column spinner 2 is another
End is connect with extraneous motor, and motor can provide power for column spinner 2, rotates it；Optimally, the first truncated cone-shaped protrusion 3
Consistent with the chamfer length of the second truncated cone-shaped protrusion 4, which can be improved the effect of the occlusion between strip bulge, make circular knife
Disk 1 is more stable when rotating, and further increases the effect of cutting.Optimally, the basal diameter of the first truncated cone-shaped protrusion 3 is greater than the
The basal diameter of two truncated cone-shaped protrusions 4, can achieve the purpose for reducing by 1 revolving speed of circular beater plate by the design, and column spinner 2 rotates
When one circle, the rotation of circular beater plate 1 is lower than a circle, when cutting some complicated bone tissues, reduces circular beater plate 1 as far as possible
Cutting speed avoids cutting to other tissues, reduces operation and unexpected risk occurs.
It is socketed with bearing 6 on column spinner 2, tube body 7 is fixedly connected with outside bearing 6, tube body 7 is for coating and fixing circle
The structures such as cutterhead 1, bearing 6 and shaft 8, make entire osteotome seem simpler, improve the stability of total, convenient for behaviour
It carries out, optimally, there are two the settings of bearing 6, is respectively arranged at the lower part and middle part of column spinner 2, column spinner can be improved in bearing 6
Stability when 2 rotation improves cutting effect；The upper end of tube body 7 is provided with shaft 8, and shaft 8 runs through the center of circular beater plate 1
It is fixedly connected with tube body 7, shaft 8 improves its stability, further decrease the risk of operation for fixing circular beater plate 1.Optimization
Ground is also equipped with bearing 6 in shaft 8, and bearing 6 is fixedly connected with shaft 8 and circular beater plate 1 respectively, and bearing 6, which further decreases, to be turned
Resistance when dynamic improves the stability that circular beater plate 1 rotates.
Optimally, close to 1 one end of circular beater plate tube body 7 tube wall be recessed inwardly so that tube body 7 opening be strip,
Opening only allows circular beater plate 1 to stretch out, and tube body 7 is recessed inwardly, and the tube wall of recess gets up the cladding of circular beater plate 1 of half, keeps away
Exempt from cutting process, excessive cutterhead is exposed to outside, causes to damage to others tissue；Moreover, the tube body 7 being recessed inwardly can
It prevents the tissue to fall off from entering inside tube body 7, influences the rotating effect of circular beater plate 1；Optimally, far from 1 one end of circular beater plate
The diameter of the tube body 7 be gradually reduced, until contacting and being fixedly connected with bearing 6,7 other end of tube body is gradually reduced and and axis
6 connections are held, tube body 7 and rotation axis preparation is integral, facilitate operation, avoiding tube body 7 when in use influences operation, the structure
The rotation axis of column spinner 2 and motor need to be only attached when in use.
Optimally, the diameter of circular beater plate 1 is 5-7mm, and optimally, the length of tube body 7 is 120-150mm, tube body 7 it is straight
Diameter is 6-8mm, and the wound which generates is smaller, can reduce patient suffering, and the size can be improved the stability used and
The effect of cutting.
Claims (7)
1. a kind of minimally invasive osteotome of backbone scope, which is characterized in that including circular beater plate (1) and column spinner (2), the circular beater plate
(1) edge is set as zigzag, and the first truncated cone-shaped protrusion (3), the column spinner are provided in the middle part of the circular beater plate (1)
(2) one end is provided with the second truncated cone-shaped protrusion (4), and first truncated cone-shaped raised (3) and second truncated cone-shaped are raised (4)
Side and bottom surface between angle be 45 degree, first truncated cone-shaped raised (3) and second truncated cone-shaped protrusion (4)
Side is provided with strip projected parts (5), and the circular beater plate (1) and the column spinner (2) are mutual by the strip projected parts (5)
Occlusion, column spinner (2) other end are connect with extraneous motor, are socketed with bearing (6), the bearing on the column spinner (2)
(6) external to be fixedly connected with tube body (7), the upper end of the tube body (7) is provided with shaft (8), and the shaft (8) runs through the circle
The center of shape cutterhead (1) is fixedly connected with the tube body (7), is also equipped with the bearing (6), the axis on the shaft (8)
It holds (6) to be fixedly connected with the shaft (8) and the circular beater plate (1) respectively, close to the described of the circular beater plate (1) one end
The tube wall of tube body (7) is recessed inwardly so that the opening of the tube body (7) is strip.
2. the minimally invasive osteotome of backbone scope according to claim 1, which is characterized in that first truncated cone-shaped raised (3) with
The chamfer length of second truncated cone-shaped raised (4) is consistent.
3. the minimally invasive osteotome of backbone scope according to claim 1 or 2, which is characterized in that first truncated cone-shaped is raised (3)
Basal diameter be greater than the basal diameters of second truncated cone-shaped raised (4).
4. the minimally invasive osteotome of backbone scope according to claim 3, which is characterized in that there are two bearing (6) settings, point
It is not set to the lower part and middle part of the column spinner (2).
5. the minimally invasive osteotome of backbone scope according to claim 4, which is characterized in that far from the circular beater plate (1) one end
The diameter of the tube body (7) be gradually reduced, until contacting and being fixedly connected with the bearing (6).
6. the minimally invasive osteotome of backbone scope according to claim 1, which is characterized in that the diameter of the circular beater plate (1) is
5-6mm。
7. the minimally invasive osteotome of backbone scope according to claim 6, which is characterized in that the length of the tube body (7) is 120-
150mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910328153.1A CN109893207A (en) | 2019-04-23 | 2019-04-23 | A kind of minimally invasive osteotome of backbone scope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910328153.1A CN109893207A (en) | 2019-04-23 | 2019-04-23 | A kind of minimally invasive osteotome of backbone scope |
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| CN109893207A true CN109893207A (en) | 2019-06-18 |
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| CN201910328153.1A Pending CN109893207A (en) | 2019-04-23 | 2019-04-23 | A kind of minimally invasive osteotome of backbone scope |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080312658A1 (en) * | 2005-09-09 | 2008-12-18 | Namba Robert S | Bone-shaping tools |
| CN204318840U (en) * | 2014-12-15 | 2015-05-13 | 王爱平 | A kind of bone-cutting device of department of otorhinolaryngology |
| CN105828617A (en) * | 2013-10-04 | 2016-08-03 | 肯特马斯特制造有限公司 | Dehiding tool |
| CN205466454U (en) * | 2015-12-26 | 2016-08-17 | 浙江名匠实业股份有限公司 | Hand -held type PVC electric wire tube cutting device |
| CN206565999U (en) * | 2016-11-22 | 2017-10-20 | 中国人民解放军第二军医大学第二附属医院 | Avulsion injuries hypodermis, which is cut, cuts device |
| CN209996419U (en) * | 2019-04-23 | 2020-01-31 | 遵义医学院附属医院 | spine endoscope minimally invasive osteotome |
-
2019
- 2019-04-23 CN CN201910328153.1A patent/CN109893207A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080312658A1 (en) * | 2005-09-09 | 2008-12-18 | Namba Robert S | Bone-shaping tools |
| CN105828617A (en) * | 2013-10-04 | 2016-08-03 | 肯特马斯特制造有限公司 | Dehiding tool |
| CN204318840U (en) * | 2014-12-15 | 2015-05-13 | 王爱平 | A kind of bone-cutting device of department of otorhinolaryngology |
| CN205466454U (en) * | 2015-12-26 | 2016-08-17 | 浙江名匠实业股份有限公司 | Hand -held type PVC electric wire tube cutting device |
| CN206565999U (en) * | 2016-11-22 | 2017-10-20 | 中国人民解放军第二军医大学第二附属医院 | Avulsion injuries hypodermis, which is cut, cuts device |
| CN209996419U (en) * | 2019-04-23 | 2020-01-31 | 遵义医学院附属医院 | spine endoscope minimally invasive osteotome |
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