CN108814673A - Limit deep osteotomy device and its intercept method - Google Patents
Limit deep osteotomy device and its intercept method Download PDFInfo
- Publication number
- CN108814673A CN108814673A CN201810288643.9A CN201810288643A CN108814673A CN 108814673 A CN108814673 A CN 108814673A CN 201810288643 A CN201810288643 A CN 201810288643A CN 108814673 A CN108814673 A CN 108814673A
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- osteotomy
- pipe
- sleeve
- connection handle
- adjusting nut
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 22
- 241001448725 Endorchis Species 0.000 claims abstract description 8
- 210000000988 bone and bone Anatomy 0.000 claims description 29
- 210000003811 finger Anatomy 0.000 claims description 13
- 210000001519 tissue Anatomy 0.000 claims description 9
- 210000004932 little finger Anatomy 0.000 claims description 6
- 210000003813 thumb Anatomy 0.000 claims description 6
- 210000000278 spinal cord Anatomy 0.000 claims description 5
- 210000003205 muscle Anatomy 0.000 claims description 4
- 210000000273 spinal nerve root Anatomy 0.000 claims description 4
- 230000006837 decompression Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 210000004749 ligamentum flavum Anatomy 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 210000005036 nerve Anatomy 0.000 abstract description 4
- 206010020718 hyperplasia Diseases 0.000 abstract description 2
- 230000001575 pathological effect Effects 0.000 abstract description 2
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis 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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1657—Bone breaking devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1637—Hollow drills or saws producing a curved cut, e.g. cylindrical
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1671—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the spine
Abstract
The present invention relates to a kind of deep osteotomy device of limit and its intercept methods, belong to medical instruments field, including pilot pin, pilot pin is straight round bar shape, pilot pin bottom is pointed, it is managed including expansion, expansion pipe is in a tubular form, cooperate pilot pin in expansion pipe, including sleeve, sleeve is the cylinder of thin-walled, sleeve diameter and expansion pipe outside diameter cooperation, including osteotomy pipe, osteotomy pipe is cylindrical, osteotomy tube bottom end is cyclic annular sawtooth, osteotomy pipe outside diameter and sleeve diameter cooperate, osteotomy pipe top is cased with connection handle, fast and safely establish foramen intervertebrale lens technology endoscope path way, convenient for being operated under foramen intervertebrale lens to pathological interspinal disk and hyperplasia spur, it is convenient in art fast and safely to the cutting of articular process, avoid and reduce the damage of nerve root and endorchis in art.
Description
Technical field
The present invention relates to a kind of deep osteotomy device of limit and its intercept methods, belong to medical instruments field.
Background technique
International advanced foramen intervertebrale lens minimally invasive surgery technology overcomes the deficiency of previous minimal invasive techniques, becomes treatment waist at present
The best minimally-invasive treatment means of disc herniation.As the revolutionary innovative technology of vertebral column minimally invasive, foramen intervertebrale lens are in treatment intervertebral
There is incomparable technical advantage in terms of disc protrusion.Compared with various operations before, foramen intervertebrale lens technology is put in endoscope
It is clearer to see anatomical structure clearly under big monitoring, disc tissue outstanding is extractd with foramen intervertebrale lens Special surgical instrument and is located
Spinal canal stenosis is managed, directly releasing neurothlipsis, but if articular process osteotomy penetrates suddenly when exerting oneself, instrument is formed directly into canalis spinalis
And sorrowful crypt damage endorchis, spinal cord and nerve root, meeting injured patients' normal tissue, or even jeopardize patients ' lives, have very high
Operation risk.Lack in current mating instrument fast and safely to the suitable tools of articular process cutting.
Summary of the invention
According to the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to：A kind of deep osteotomy device of limit is provided
And its intercept method, fast and safely establish foramen intervertebrale lens technology endoscope path way, convenient under foramen intervertebrale lens to pathological interspinal disk and
The operation of hyperplasia spur is convenient in art that fast and safely the cutting of articular process is avoided and reduced nerve root and endorchis in art
Damage.
The deep osteotomy device of limit of the present invention, including pilot pin, pilot pin are straight round bar shape, and pilot pin bottom is in point
Shape, including expansion pipe, expansion pipe in a tubular form, cooperate pilot pin, including sleeve in expansion pipe, sleeve is the cylinder of thin-walled, sleeve
Internal diameter and expansion pipe outside diameter cooperation, including osteotomy pipe, osteotomy pipe is cylindrical, and osteotomy tube bottom end is cyclic annular sawtooth, outside osteotomy pipe
Diameter and sleeve diameter cooperate, and osteotomy pipe top is cased with connection handle, and in a tubular form, connection handle upper end blocks connection handle, connection handle internal diameter
Cooperate with osteotomy pipe outside diameter, guide groove, fixed guide block in osteotomy pipe outer wall are set on the inside of connection handle, guide pad cooperation is being oriented to
In slot, guide groove plays the role of limitation osteotomy pipe and rotates in connection handle, avoids osteotomy pipe from rotating in connection handle, guide groove
Upper end blocks and lower end is open, can prevent osteotomy pipe from deviating from from connection handle upper end, and setting adjusts screw thread in osteotomy pipe outer wall, cuts
It is threadedly engaged adjusting nut by adjusting on bone pipe, adjusting nut outer diameter is less than connection handle outer diameter and is greater than connection handle internal diameter, adjusts
It saves nut outer diameter and is greater than sleeve diameter, fixed ring gear on the outer wall of connection handle lower part, ring gear is cricoid gear, and side wall is equipped with
Tooth fixes L shape limit film on upper cartridge outer wall, is arranged rack gear on the inside of limit film, the fixed lever of rack gear tail end, and the rack gear back side is tight
After pasting on the inside of limit film, the tooth on rack gear is together with the tooth engagement on ring gear, fixing bearing on connection handle upper surface, outside bearing
Circle is fixed on connection handle, the fixed pressing lever of bearing inner race, the fixed pressing plate in pressing lever upper end, including takes out bar, and taking out bar is in
Thin rod shape, taking-up bar lower end is sharp, and screw thread is arranged in sharp parts, takes out the fixed handle in bar upper end, and osteotomy pipe is stainless steel
Matter.
On cyclic annular sawtooth medial surface setting one circle screw thread, osteotomy pipe rotate when, screw thread can precession saw under bone tissue side,
The frictional force between cyclic annular sawtooth medial surface and bone tissue is significantly increased, after circular saw is lower by bone tissue saw, even if
The bone tissue and its hetero-organization being intercepted have adhesion, and the bone tissue of interception can also be taken out by above mentioning osteotomy pipe, high reliablity, side
Just quick.
Including position-limiting drum, position-limiting drum cooperates on sleeve outer wall, and anti-moving plate is arranged in position-limiting drum lower end, is arranged on anti-moving plate and lives
Dynamic hole, position-limiting drum lower end is hinged on movable span inner wall, coats anti-slip layer on anti-moving plate bottom surface, prevent anti-moving plate on the skin
It slides, coats anti-slip layer on lower cartridge outer wall, finger is facilitated to clutch sleeve.
Rack gear front end does not have tooth and in plane, and the plane is concordant at the tooth root of the tooth on rack gear, the outside circle on ring gear
Radius be less than limit plate to the distance in ring gear axle center, rack gear front end can be directly protruding between limit plate and ring gear, be not necessarily to
Connection handle is lifted, operation is facilitated.
The lower end of sleeve and expansion pipe is respectively provided with chamfering, squeezes tissue by chamfering when entering wound, avoids
Damage tissue.
Adjusting nut lower end surface and sleeve upper surface are smooth, substantially reduce the frictional force between adjusting nut and sleeve,
Frictional force when operation between adjusting nut and sleeve is prevented to be greater than the frictional force between the screw thread on adjusting nut and osteotomy pipe,
Adjusting nut is not rotated with osteotomy pipe when preventing osteotomy pipe from rotating, and opposite move occurs so as to cause adjusting nut and osteotomy pipe
It is dynamic, so that osteotomy depth changes.
Scale is set on the outer wall of osteotomy pipe lower part, easily and intuitively adjusts osteotomy depth.
Operation principle and process：
One, it is positioned under C- arm perspective, is then inserted into pilot pin in the inferior articular process tip that need to be intercepted, it then will expansion
Pipe sleeve is pushed into pilot pin, and by expansion pipe lower end subcutaneously to inferior articular process tip, by the skin and muscle groups of site of puncture
It knits and struts, then sleeve is covered upper in expansion pipe and sleeve lower end is pushed into inferior articular process tip,
Then by pilot pin and expansion pipe extraction, at this time sleeve by above inferior articular process tip skin and musculature support
It opens；
Two, position-limiting drum is covered on sleeve, while anti-moving plate contacts wound surrounding skin, rotates adjusting nut, adjust spiral shell
Mother moves on osteotomy pipe, and when adjusting nut lower end is against sleeve upper end, the length that osteotomy pipe stretches out in sleeve lower end is cut
The depth of bone determines the adjusting nut that stops operating after osteotomy depth, and osteotomy pipe is inserted into sleeve；
Three, osteotomy pipe lower end is against to osteotomy position, and sleeve upper end is not contacted with adjusting nut at this time, and osteotomy tube bottom end is
Rack gear is inserted between limit plate and ring gear by cyclic annular sawtooth, and rack gear is engaged with ring gear, and the index finger of hand is pressed in pressing by operator
On disk, and then apply pressure to osteotomy pipe, thumb, middle finger, the third finger and little finger of toe is pinched sleeve, while little finger of toe, palmar side
Anti-moving plate is pressed on anti-moving plate by side and thumb lower muscle, and position-limiting drum can rotate in the movable span of anti-moving plate, allows sleeve
At an angle with skin surface, to adapt to different operative sites, while it can prevent sleeve from translating and leading to osteotomy position
Variation, then another hand one direction or reciprocal pull rack gear, the rotation of rack drives ring gear, ring gear drive connection handle rotation,
Since the guide groove on connection handle is combined together with the guide pad on osteotomy pipe, connection handle drives the rotation of osteotomy pipe, into
And the cyclic annular sawtooth of osteotomy pipe lower end cuts inferior articular process tip bone tissue, with the increase of depth of cut, osteotomy pipe
Also downlink therewith, when adjusting nut lower end and sleeve upper-end contact, osteotomy pipe stops downlink,
Adjusting nut prevents articular process osteotomy from penetrating suddenly when exerting oneself, and penetrates canalis spinalis and sorrowful crypt damage endorchis, spinal cord
And nerve root, rotation adjusting nut is adjusted according to different operative sites and then adjusts the osteotomy depth of osteotomy pipe, and pressing plate is logical
Bearing to be crossed to connect with connection handle, pressing plate not can rotate when connection handle rotates, and prevent pressing plate from relatively moving with index finger, into
And it prevents from slipping out of the hand；
Four, the bar end of thread will be taken out and protrudes into osteotomy pipe, then rotated on the bone tissue of interception, taking-up bar lower end is sharp,
Its sharp parts be arranged multi-turn screw thread, take out bar the bone tissue being intercepted is shot as self-tapping screw, then on
Rod is extracted, due to one circle screw thread of setting on only cyclic annular sawtooth medial surface, the frictional force of cyclic annular sawtooth and osteotomy is not more than
The frictional force of bar and osteotomy is taken out, therefore can be taken out osteotomy by taking out bar, osteotomy pipe forms channel, is convenient for foramen intervertebrale lens
Insertion operation, row spinal canal decompression, ligamentum flavum molding, disc removal operation.
Compared with the prior art, the invention has the beneficial effects that：
The deep osteotomy device of limit of the present invention and its intercept method, cut articular process when establishing channel for foramen intervertebrale lens
Bone is conducive to the excision of foramen intervertebrale lens Path Setup and disk nucleus pulposus, prevents and reduce the operation such as damage of endorchis and nerve root
Complication.Structure is simple, securely and reliably, easy to operate.Osteotomy depth can be adjusted according to different operative sites, made up in intervertebral
When aperture mirror establishes channel to articular process osteotomy suddenly penetrate accidentally injure damage spinal cord, endorchis, nerve root safe instrument blank.
Detailed description of the invention
Fig. 1 is schematic diagram of the embodiment of the present invention；
Schematic diagram when Fig. 2 is embodiment illustrated in fig. 1 working condition, the position of hand when dotted portion is work in figure；
Fig. 3 is the right view of embodiment illustrated in fig. 2 rack gear；
Fig. 4 is the top view of embodiment illustrated in fig. 2 rack gear；
Fig. 5 is embodiment illustrated in fig. 1 part A partial enlarged view.
In figure：1, pilot pin；2, expansion pipe；3, sleeve；4, anti-moving plate；5, position-limiting drum；6, pressing plate；7, pressing lever；8,
Guide pad；9, limit plate；10, guide groove；11, handle；12, bar is taken out；13, bearing；14, connection handle；15, osteotomy pipe；16, tooth
Ring；17, adjusting nut；18, rack gear；19, cyclic annular sawtooth；20, screw thread；21, movable span；22, lever.
Specific embodiment
The embodiment of the present invention is described further with reference to the accompanying drawing：
As Figure 1-Figure 5, the deep osteotomy device of limit of the present invention, including pilot pin 1, pilot pin 1 are straight round bar shape,
1 bottom of pilot pin is pointed, including expansion pipe 2, and expansion pipe 2 in a tubular form, cooperates pilot pin 1, including sleeve 3, set in expansion pipe 2
Cylinder 3 is the cylinder of thin-walled, 3 internal diameter of sleeve and expansion 2 major diameter fit of pipe, including osteotomy pipe 15, and osteotomy pipe 15 is cylindrical, osteotomy
15 bottom end of pipe is cyclic annular sawtooth 19, and 15 outer diameter of osteotomy pipe and 3 internal diameter of sleeve cooperate, and 15 top of osteotomy pipe is cased with connection handle 14, even
Connect handle 14 in a tubular form, 14 upper end of connection handle blocks, 14 internal diameter of connection handle and 15 major diameter fit of osteotomy pipe, is arranged on the inside of connection handle 14
Guide groove 10, fixed guide block 8 on 15 outer wall of osteotomy pipe, guide pad 8 cooperate in guide groove 10, and guide groove 10 plays limitation and cuts
The effect that bone pipe 15 rotates in connection handle 14 avoids osteotomy pipe 15 from rotating in connection handle 14,10 upper end of guide groove block and
Lower end is open, can prevent osteotomy pipe 15 from deviating from from 14 upper end of connection handle, and setting adjusts screw thread 20, osteotomy on 15 outer wall of osteotomy pipe
Cooperate adjusting nut 17 by adjusting screw thread 20 on pipe 15,17 outer diameter of adjusting nut is less than 14 outer diameter of connection handle and is greater than connection handle
14 internal diameters, 17 outer diameter of adjusting nut are greater than 3 internal diameter of sleeve, fixed ring gear 16 on 14 lower part outer wall of connection handle, and ring gear 16 is ring-type
Gear, side wall is equipped with tooth, L shape limit film fixed in 3 external wall of upper portion of sleeve, rack gear 18, rack gear is arranged on the inside of limit film
18 tail ends fix lever 22, and after 18 back side of rack gear is close on the inside of limit film, the tooth engagement on tooth and ring gear 16 on rack gear 18 exists
Together, fixing bearing 13 on 14 upper surface of connection handle, 13 outer ring of bearing are fixed on connection handle 14, the fixed pressing of 13 inner ring of bearing
Bar 7, the fixed pressing plate 6 in 7 upper end of pressing lever, including bar 12 is taken out, taking out bar 12 is in thin rod shape, and taking-up 12 lower end of bar is sharp,
Screw thread 20 is arranged in sharp parts, takes out the fixed handle 11 in 12 upper end of bar, and osteotomy pipe 15 is stainless steel material.
One circle screw thread 20 of setting on cyclic annular 19 medial surface of sawtooth, bone when osteotomy pipe 15 rotates, under the meeting precession saw of screw thread 20
Side is organized, the frictional force between cyclic annular 19 medial surface of sawtooth and bone tissue is significantly increased, when circular saw is by bone tissue
After saw is lower, even if the bone tissue being intercepted and its hetero-organization have adhesion, the bone tissue of interception can also be taken by above mentioning osteotomy pipe 15
Out, high reliablity, it is convenient and efficient.
Including position-limiting drum 5, position-limiting drum 5 cooperates on 3 outer wall of sleeve, the anti-moving plate 4 of 5 lower end of position-limiting drum setting, on anti-moving plate 4
Movable span 21 is set, and 5 lower end of position-limiting drum is hinged on 21 inner wall of movable span, coats anti-slip layer on anti-moving 4 bottom surface of plate, prevent
It moves plate 4 to slide on the skin, coats anti-slip layer on 3 lower part outer wall of sleeve, finger is facilitated to clutch sleeve 3.
18 front end of rack gear does not have tooth and in plane, and the plane is concordant at the tooth root of the tooth on rack gear 18, on ring gear 16
The radius of outside circle is less than the distance that limit plate 9 arrives 16 axle center of ring gear, 18 front end of rack gear can be directly protruding into limit plate 9 and tooth
Between ring 16, without lifting connection handle 14, facilitate operation.
The lower end of sleeve 3 and expansion pipe 2 is respectively provided with chamfering, squeezes tissue by chamfering when entering wound, keeps away
Exempt to damage tissue.
17 lower end surface of adjusting nut and 3 upper surface of sleeve are smooth, substantially reduce rubbing between adjusting nut 17 and sleeve 3
Power is wiped, frictional force when operation between adjusting nut 17 and sleeve 3 is prevented to be greater than the screw thread on adjusting nut 17 and osteotomy pipe 15
Frictional force between 20, that is, adjusting nut 17 is not rotated with osteotomy pipe 15 when preventing osteotomy pipe 15 from rotating, so as to cause spiral shell is adjusted
Mother 17 relatively moves with osteotomy pipe 15, so that osteotomy depth changes.
Scale is set on 15 lower part outer wall of osteotomy pipe, easily and intuitively adjusts osteotomy depth.
Operation principle and process：
One, it is positioned under C- arm perspective, is then inserted into pilot pin 1 in the inferior articular process tip that need to be intercepted, then will expanded
2 sets of pipe are opened in pilot pin 1, and expansion 2 lower end of pipe is pushed into subcutaneously to inferior articular process tip, by the skin and flesh of site of puncture
Meat tissue struts, and then inferior articular process tip is pushed by 3 sets of sleeve on expansion pipe 2 and by 3 lower end of sleeve, then by pilot pin
1 and expansion pipe 2 extract out, at this time sleeve 3 by above inferior articular process tip skin and musculature strut；
Two, by 5 sets of position-limiting drum on sleeve 3, while anti-moving plate 4 contacts wound surrounding skin, rotates adjusting nut 17, adjusts
Section nut 17 moves on osteotomy pipe 15, and when 17 lower end of adjusting nut is against 3 upper end of sleeve, osteotomy pipe 15 stretches out in sleeve 3
Length, that is, osteotomy depth of lower end determines the adjusting nut 17 that stops operating after osteotomy depth, and osteotomy pipe is inserted into sleeve 3
15；
Three, 15 lower end of osteotomy pipe is against to osteotomy position, and 3 upper end of sleeve is not contacted with adjusting nut 17 at this time, osteotomy pipe
15 bottom ends are cyclic annular sawtooth 19, rack gear 18 are inserted between limit plate 9 and ring gear 16, rack gear 18 is engaged with ring gear 16, operator
The index finger of hand is pressed in pressing plate 6 by member, and then applies pressure to osteotomy pipe 15, and thumb, middle finger, the third finger and little finger of toe will be covered
Cylinder 3 pinches, while anti-moving plate 4 is pressed on anti-moving plate 4 by little finger of toe, palm side and thumb lower muscle, and position-limiting drum 5 can be anti-moving
Rotation in the movable span 21 of plate 4, allows sleeve 3 and skin surface at an angle, to adapt to different operative sites, while can
Osteotomy position is caused to change to prevent sleeve 3 from translating, then another hand one direction or reciprocal pull rack gear 18, rack gear 18
Ring gear 16 is driven to rotate, ring gear 16 drives connection handle 14 to rotate, due on the guide groove 10 and osteotomy pipe 15 on connection handle 14
Guide pad 8 is combined together, therefore connection handle 14 drives osteotomy pipe 15 to rotate, and then the cyclic annular sawtooth 19 of 15 lower end of osteotomy pipe is right
Inferior articular process tip bone tissue is cut, with the increase of depth of cut, the also downlink therewith of osteotomy pipe 15, when adjusting nut 17
When lower end and 3 upper-end contact of sleeve, osteotomy pipe 15 stops downlink, and adjusting nut 17 prevents articular process osteotomy from wearing suddenly when exerting oneself
Thoroughly, canalis spinalis and sorrowful crypt damage endorchis, spinal cord and nerve root are penetrated, rotation adjusting nut is adjusted according to different operative sites
17 adjust the osteotomy depth of osteotomy pipe 15 in turn, and pressing plate 6 is connect by bearing 13 with connection handle 14, and connection handle 14 is pressed when rotating
Platen 6 not can rotate, and prevent pressing plate 6 from relatively moving with index finger, and then prevent from slipping out of the hand；
Four, 12 screw thread of bar, 20 end will be taken out and protrudes into osteotomy pipe 15, then rotated, taken out under bar 12 on the bone tissue of interception
End is sharp, and multi-turn screw thread 20 is arranged in sharp parts, takes out bar 12 and shoots the bone tissue being intercepted as self-tapping screw, then
Upper extraction rod 12, due to there was only one circle screw thread 20 of setting, the friction of cyclic annular sawtooth 19 and osteotomy on 19 medial surface of cyclic annular sawtooth
Power is not more than the frictional force for taking out bar 12 and osteotomy, therefore can be taken out osteotomy by taking out bar 12, the formation of osteotomy pipe 15
Foramen intervertebrale lens insertion operation, row spinal canal decompression, ligamentum flavum molding, disc removal operation are convenient in channel.
Claims (8)
1. a kind of deep osteotomy device of limit, it is characterised in that：Including pilot pin (1), pilot pin (1) is straight round bar shape, pilot pin (1)
Bottom is pointed, including expansion pipe (2), and expansion pipe (2) in a tubular form, cooperates pilot pin (1) in expansion pipe (2), including sleeve
(3), sleeve (3) is the cylinder of thin-walled, sleeve (3) internal diameter and expansion pipe (2) major diameter fit, including osteotomy pipe (15), osteotomy pipe
(15) cylindrical, osteotomy pipe (15) bottom end is cyclic annular sawtooth (19), and osteotomy pipe (15) outer diameter and sleeve (3) internal diameter cooperate, cut
Bone pipe (15) top is cased with connection handle (14), and in a tubular form, connection handle (14) upper end blocks connection handle (14), connection handle (14) internal diameter
With osteotomy pipe (15) major diameter fit, guide groove (10) are arranged in connection handle (14) inside, fixed guide block on osteotomy pipe (15) outer wall
(8), in guide groove (10), guide groove (10) plays limitation osteotomy pipe (15) in connection handle (14) inward turning for guide pad (8) cooperation
The effect turned, guide groove (10) upper end blocks and lower end is open, prevents osteotomy pipe (15) from deviating from from connection handle (14) upper end, osteotomy
It manages setting on (15) outer wall and adjusts screw thread (20), by adjusting screw thread (20) cooperation adjusting nut (17) on osteotomy pipe (15), adjust
It saves nut (17) outer diameter to be less than connection handle (14) outer diameter and be greater than connection handle (14) internal diameter, adjusting nut (17) outer diameter is greater than sleeve
(3) internal diameter, fixed ring gear (16) on the outer wall of connection handle (14) lower part, ring gear (16) are cricoid gear, and side wall is equipped with tooth,
L shape limit film is fixed in sleeve (3) external wall of upper portion, and rack gear (18) are set on the inside of limit film, the fixed lever of rack gear (18) tail end
(22), after rack gear (18) back side is close on the inside of limit film, the tooth on rack gear (18) is together with the tooth engagement on ring gear (16), even
Fixing bearing (13) on handle (14) upper surface is connect, bearing (13) outer ring is fixed on connection handle (14), and bearing (13) inner ring is fixed
Pressing lever (7), pressing lever (7) upper end is fixed pressing plate (6), including takes out bar (12), and taking out bar (12) is in thin rod shape, takes out bar
(12) lower end is sharp, and screw thread (20) are arranged in sharp parts, takes out bar (12) upper end and fixes handle (11), and osteotomy pipe (15) is not
Rust steel material.
2. the deep osteotomy device of limit according to claim 1, it is characterised in that：One circle spiral shell of setting on cyclic annular sawtooth (19) medial surface
Line (20), when osteotomy pipe (15) rotates, screw thread (20) understands the bone tissue side under precession saw, significantly increases cyclic annular sawtooth
(19) frictional force between medial surface and bone tissue, after circular saw is lower by bone tissue saw, even if the bone tissue being intercepted with
Its hetero-organization has adhesion, and the bone tissue of interception can also be taken out by above mentioning osteotomy pipe (15), and high reliablity is convenient and efficient.
3. the deep osteotomy device of limit according to claim 2, it is characterised in that：Including position-limiting drum (5), position-limiting drum (5) cooperation exists
On sleeve (3) outer wall, anti-moving plate (4) is arranged in position-limiting drum (5) lower end, movable span (21) is arranged on anti-moving plate (4), position-limiting drum (5)
Lower end is hinged on movable span (21) inner wall, is coated anti-slip layer on anti-moving plate (4) bottom surface, is prevented anti-moving plate (4) on the skin
It slides, coats anti-slip layer on the outer wall of sleeve (3) lower part, finger is facilitated to clutch sleeve (3).
4. the deep osteotomy device of limit according to claim 3, it is characterised in that：Rack gear (18) front end does not have tooth and in plane, should
Plane is concordant at the tooth root of the tooth on rack gear (18), and the radius of the outside circle on ring gear (16) is less than limit plate (9) and arrives ring gear
(16) rack gear (18) front end can be directly protruding between limit plate (9) and ring gear (16) by the distance in axle center, be not necessarily to connection handle
(14) lift, facilitate operation.
5. the deep osteotomy device of limit according to claim 4, it is characterised in that：The lower end of sleeve (3) and expansion pipe (2) is respectively provided with
Tissue is squeezed when entering wound by chamfering, avoids damage to tissue by chamfering.
6. the deep osteotomy device of limit according to claim 5, it is characterised in that：On adjusting nut (17) lower end surface and sleeve (3)
End face is smooth, substantially reduces the frictional force between adjusting nut (17) and sleeve (3), prevent operation when adjusting nut (17) with
Frictional force between sleeve (3) is greater than the frictional force between the screw thread (20) on adjusting nut (17) and osteotomy pipe (15), i.e., anti-
Adjusting nut (17) is not rotated with osteotomy pipe (15) when only osteotomy pipe (15) rotates, so as to cause adjusting nut (17) and osteotomy pipe
(15) it relatively moves, so that osteotomy depth changes.
7. the deep osteotomy device of limit according to claim 6, it is characterised in that：Scale is set on the outer wall of osteotomy pipe (15) lower part,
Easily and intuitively adjust osteotomy depth.
8. the deep osteotomy device of limit according to claim 7, osteotomy method are：
One, it is positioned under C- arm perspective, is then inserted into pilot pin (1) in the inferior articular process tip that need to be intercepted, it then will expansion
Pipe (2) covers on pilot pin (1), and by expansion pipe (2) lower end push-in subcutaneously to inferior articular process tip, by the skin of site of puncture
And musculature struts, and then covers on expansion pipe (2) sleeve (3) and sleeve (3) lower end is pushed into inferior articular process tip, so
Afterwards by pilot pin (1) and expansion pipe (2) extraction, at this time sleeve (3) by above inferior articular process tip skin and musculature support
It opens；
Two, position-limiting drum (5) is covered on sleeve (3), while anti-moving plate (4) contacts wound surrounding skin, rotates adjusting nut
(17), adjusting nut (17) moves on osteotomy pipe (15), when adjusting nut (17) lower end is against sleeve (3) upper end, osteotomy
Pipe (15) stretches out in the length i.e. depth of osteotomy of sleeve (3) lower end, stops operating adjusting nut (17) after determining osteotomy depth,
Osteotomy pipe (15) are inserted into sleeve (3)；
Three, osteotomy pipe (15) lower end is against to osteotomy position, and sleeve (3) upper end is not contacted with adjusting nut (17) at this time, osteotomy
Managing (15) bottom end is cyclic annular sawtooth (19), rack gear (18) is inserted between limit plate (9) and ring gear (16), rack gear (18) and ring gear
(16) engage, the index finger of hand is pressed on pressing plate (6) by operator, and then osteotomy pipe (15) is given to apply pressure, by thumb, in
Refer to, nameless and little finger of toe pinches sleeve (3), while little finger of toe, palm side and thumb lower muscle anti-moving plate (4) is pressed in it is anti-
It moves on plate (4), position-limiting drum (5) can rotate in the movable span (21) of anti-moving plate (4), allow sleeve (3) and skin surface is in one
Determine angle, to adapt to different operative sites, while sleeve (3) can be prevented to translate and osteotomy position is caused to change, then separately
One hand one direction or reciprocal pull rack gear (18), rack gear (18) drive ring gear (16) rotation, and ring gear (16) drives connection handle
(14) it rotates, since the guide groove (10) on connection handle (14) is combined together with the guide pad (8) on osteotomy pipe (15),
Connection handle (14) drives osteotomy pipe (15) rotation, and then the cyclic annular sawtooth (19) of osteotomy pipe (15) lower end is to inferior articular process tip bone
Tissue is cut, with the increase of depth of cut, osteotomy pipe (15) also downlink therewith, when adjusting nut (17) lower end and sleeve
(3) when upper-end contact, osteotomy pipe (15) stops downlink, and adjusting nut (17) prevents articular process osteotomy from penetrating suddenly when exerting oneself, wears
Enter canalis spinalis and sorrowful crypt damage endorchis, spinal cord and nerve root, rotation adjusting nut (17) is adjusted according to different operative sites
And then the osteotomy depth of osteotomy pipe (15) is adjusted, pressing plate (6) is connect by bearing (13) with connection handle (14), connection handle (14)
Pressing plate (6) not can rotate when rotation, prevent pressing plate (6) from relatively moving with index finger, and then prevent from slipping out of the hand；
Four, bar (12) screw thread (20) end will be taken out and protrudes into osteotomy pipe (15), and then rotated on the bone tissue of interception, take out bar
(12) lower end is sharp, and multi-turn screw thread (20) are arranged in sharp parts, takes out bar (12) and shoots as self-tapping screw and is intercepted
Bone tissue, it is then upper to extract rod (12), due to one circle screw thread (20) of setting on only cyclic annular sawtooth (19) medial surface, ring-type saw
The frictional force of tooth (19) and osteotomy is not more than the frictional force for taking out bar (12) and osteotomy, thus can by take out bar (12) by
Osteotomy is taken out, and osteotomy pipe (15) forms channel, is convenient for foramen intervertebrale lens insertion operation, row spinal canal decompression, ligamentum flavum molding, interverbebral disc
Excising operation.
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| CN201810288643.9A CN108814673B (en) | 2018-04-03 | 2018-04-03 | Depth-limiting osteotomy device and osteotomy method thereof |
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| CN201810288643.9A CN108814673B (en) | 2018-04-03 | 2018-04-03 | Depth-limiting osteotomy device and osteotomy method thereof |
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| CN110269662A (en) * | 2019-05-07 | 2019-09-24 | 张为 | Take bone tool |
| CN110448351A (en) * | 2019-08-23 | 2019-11-15 | 山东大学齐鲁医院(青岛) | A kind of acetabular bone spur removal deep osteotome of limit |
| CN111513804A (en) * | 2020-05-06 | 2020-08-11 | 遵义医科大学附属医院 | Accurate depth-limiting thread type trepan suit for percutaneous vertebral body trepanning bone taking and drilling for spinal minimally invasive surgery |
| WO2023173470A1 (en) * | 2022-03-18 | 2023-09-21 | 杭州市富阳中医骨伤医院 | Intubation-type tissue expansion orthopedic minimally invasive surgery tool |
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| CN108814673B (en) | 2021-04-02 |
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