CN101433479B - Lumbar zygapophysial joints fusion device and implantation device thereof - Google Patents
Lumbar zygapophysial joints fusion device and implantation device thereof Download PDFInfo
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- CN101433479B CN101433479B CN2008102444374A CN200810244437A CN101433479B CN 101433479 B CN101433479 B CN 101433479B CN 2008102444374 A CN2008102444374 A CN 2008102444374A CN 200810244437 A CN200810244437 A CN 200810244437A CN 101433479 B CN101433479 B CN 101433479B
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Abstract
The invention discloses a waist joint zygapophysis cage and an implanting device thereof. The waist joint zygapophysis cage comprises an oblate spheroid, and both ends of the oblate spheroid are provided with an upper cylinder and a lower cylinder respectively which have coincided center shafts and the same diameter; the oblate spheroid is 6 mm in diameter and 4 mm in height; the diameters of the upper cylinder and the lower cylinder are 2 mm, the upper cylinder is 2 mm in height, and the lower cylinder is 1mm in height; and the oblate spheroid, the upper cylinder and the lower cylinder are made of cortical bone materials of adult thighbone. The implanting device comprises a positioning device, a working channel, a straight drill, a spherical drill and an implanting machine. The waist joint zygapophysis cage has the advantages of improving the medium and long term fusion rates of the lumbar facet joint and the remission rate of postoperative symptoms, eliminating the loosening and breaking of bolts and reducing side effects of bolts such as neurologic damage and the like caused by epidural rupture and vertebral canal puncture. The implanting device has the advantages of simple structure, easy operation and good use effect.
Description
Technical field:
This patent relates to Medical Technology, is a cover operating theater instruments and a body implant, particularly, and the supporting operating theater instruments that needs during for articular process of lumbar vertebra joint fusion device and fusion device implantation.
Background technology:
Zygapophysial joints is the unique real active joint of spinal column intervertebral, is made up of the articular surface of the upper and lower articular process of adjacent vertebrae, belongs to plane joint, can only do slight slip.The summation of but moving between each vertebra is but very big, can play guiding, anti-rotation, incompressible and shearing resistance effect.At lumbar vertebra, the zygapophysial joints face almost is sagittal plain, limited rotatablely moving, and flexion and extension is flexible.The axial load power that carry in the articular process of lumbar vertebra joint accounts for the 10%-20% of spinal column total load, and zygapophysial joints mainly has been the effect of anti-rotation and shearing resistance to lumbar vertebra, so the most of movable of lumbar vertebra intervertebral just can be limited in the prominent joint of fixing joint.The reasonable approach of atraumatic disease spinal fusion is the prominent joint of direct fixing joint.Experiment shows between the intervertebral promptly use relatively poor the absorbed pin of constant intensity also can limit normal spinal column significantly and articular process moves.
The LOCATION OF PEDICLE SCREW FIXATION intensity effect of the more tetanic property of the constant intensity connection of merging through zygapophysial joints is poor, but is better than the constant intensity or quite of the pedicle screw of half tetanic property connection.In general, better through anti-flexing, anti-rotation and intensity of shear that zygapophysial joints merges, its anti-intensity of stretching is relatively poor comparatively speaking, but still is better than the spinal column of normal spinal column and simple preceding road bone grafting or implantation fusion device.Mechanical property comparative study at present and clinical practice all show through vertebral plate zygapophysial joints screw merges atraumatic waist sacrum, and its fixation really, reliably.
Can strengthen the stability of spinal column in view of the zygapophysial joints integration technology; Obtain extensive use through the zygapophysial joints integration technology as a kind of independently way of escape internal fixation method; Especially occurred some complication in the nineties along with the extensive use of pedicle of vertebral arch inner fixer, the zygapophysial joints integration technology that relative therewith conduct is simple to operate, safety, expense are lower more and more demonstrates with the pedicle of vertebral arch internal fixation in the waist sacrum merges and compares the superiority that has.
At present; The articular process of lumbar vertebra joint screw is widely used in clinical patients; Articular process of lumbar vertebra joint screw (comprising Boucher screw and Magerl screw) can significantly increase the rigidity of fixed-segment with after the activity restriction between the upper and lower articular process, and obviously reduces the mobility of this sections.But the complication that articular process of lumbar vertebra joint screw technology has been reported have merge that failure, postoperative remission are not obvious, screw loosening and fracture, dura mater are torn, screw is punctured to canalis spinalis, cause nerve injury etc.It is reported the articular process of lumbar vertebra joint screw be applied to the articular process of lumbar vertebra arthrodesis its not fusion rate reach 2%～10%.2 routine screw extractions in Thorstea report screw loosening rate 3%, 173 example, Ploltz has reported that upper spondylolisthesis takes place 5 routine postoperatives, also has the report of fracture of the vertebral lamina.The unconspicuous ratio of postoperative remission is 1%-13.6%.For this reason on the basis of articular process of lumbar vertebra joint screw; Measure and research according to the Neo-Confucianism in compatriots' articular process of lumbar vertebra joint; Develop a kind of articular process of lumbar vertebra joint fusion device with the fusion rate that improves medium-term and long-term articular process of lumbar vertebra joint and the remission rate of postoperative symptom; Eliminate the loosening and fracture of screw, reduce dura mater and tear, be punctured to canalis spinalis, cause screw side effect such as nerve injury.Through strict document Investigation, do not find the report of articular process of lumbar vertebra joint fusion device.
Summary of the invention:
Technical solution of the present invention is:
A kind of waist joint joint fusion device of dashing forward, it is characterized in that: comprise oblate spheroid, the oblate spheroid two ends are provided with the upper and lower cylinder that central shaft is overlapping and diameter is identical respectively; The diameter of oblate spheroid is 6mm, high 4mm; Upper and lower cylindrical diameter is 4mm, goes up cylindrical high 2mm, following cylindrical high 1mm; Oblate spheroid and upper and lower cylinder all adopt the cortical bone material of adult thighbone.
The implanting device of the prominent joint fusion device of a kind of waist joint is characterized in that: comprise localizer, service aisle, straight brill, round bur, implantation device; Wherein:
(1) localizer comprises the draw point bar; Draw point bar front end is provided with insert head, and the diameter of draw point bar is 6mm, and the insert head front end is a taper; The insert head rear end is cylindric; And cylindric rear end diameter is 3mm, and the height of insert head is 5mm, and the draw point rod rear end is provided with the articular process of lumbar vertebra joint and intermittently moves towards consistent witness marker;
(2) service aisle comprises that diameter is the tubular body of 10mm; Tubular body rear end dress handle; The leading section of tubular body is provided with 6 dentations, and wherein two has been the big Odontoid process of expansion joint intermittent action, and four for to be fixed in the little Odontoid process on the articular process of lumbar vertebra joint with service aisle; Handle be provided with localizer on the witness marker that cooperates of witness marker;
(3) straight boring comprises drilling rod, and the drilling rod front end is provided with straight drill, and the straight drill diameter is 4mm, and drilling rod is provided with the service aisle handle dark retaining of limit that to cooperate, make straight brill boring controlling depth be 9mm and dashes forward;
(4) round bur comprises drilling rod, and the drilling rod front end is provided with the round bur head, and the straight drill diameter is 6mm, and drilling rod is provided with that to cooperate, make straight brill boring controlling depth with the service aisle handle be that the dark retaining of limit of 6mm is prominent;
(5) implantation device comprises outer tube, and the outer tube leading section is the grasping part form that is prone to expansion, firmly grasps, and dress is implanted bar in the outer tube, and it is prominent that outer tube is provided with the dark retaining of the limit that cooperates with the service aisle handle.
The present invention is on the basis of articular process of lumbar vertebra joint screw; Measure and research according to the Neo-Confucianism in compatriots' articular process of lumbar vertebra joint; A kind of articular process of lumbar vertebra joint fusion device of developing can improve the fusion rate in medium-term and long-term articular process of lumbar vertebra joint and the remission rate of postoperative symptom, eliminates the loosening and fracture of screw; Reduce dura mater and tear, be punctured to canalis spinalis, cause screw side effect such as nerve injury.Implanting device is simple, easy to operate, and result of use is good.
Description of drawings:
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is an articular process of lumbar vertebra joint fusion device structural representation;
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the localizer sketch map.
Fig. 4 is the service aisle structural representation.
Fig. 5 is a service aisle leading section enlarged drawing.
Fig. 6 round bur configuration diagram.
Fig. 7 directly bores configuration diagram.
Fig. 8 is the implantation device structural representation.
Fig. 9 is an implantation device leading section enlarged drawing.
The specific embodiment:
A kind of waist joint joint fusion device of dashing forward comprises oblate spheroid (i.e. form after a part is respectively excised in the two ends of spheroid, and end flat is parallel to each other) 1, and the oblate spheroid two ends are provided with the upper and lower cylinder 2,3 that central shaft is overlapping and diameter is identical respectively; The diameter of oblate spheroid (i.e. the diameter at the thickest position) is 6mm, high 4mm; Upper and lower cylindrical diameter is 4mm, goes up cylindrical high 2mm, following cylindrical high 1mm; Oblate spheroid and upper and lower cylinder all adopt the cortical bone material of adult thighbone.
The implanting device of the prominent joint fusion device of a kind of waist joint comprises localizer, service aisle, straight brill, round bur, implantation device; Wherein:
(1) localizer comprises draw point bar 4; Draw point bar front end is provided with insert head 5, and the diameter of draw point bar is 6mm, and the insert head front end is a taper; The insert head rear end is cylindric; And cylindric rear end diameter is 3mm, and the height of insert head is 5mm, and the draw point rod rear end is provided with the articular process of lumbar vertebra joint and intermittently moves towards consistent witness marker 6;
(2) service aisle comprises that diameter is the tubular body 7 of 10mm; Tubular body rear end dress handle 8; The leading section of tubular body is provided with 6 dentations, and wherein two has been that 9, four of the big Odontoid processes of expansion joint intermittent action are for to be fixed in the little Odontoid process 10 on the articular process of lumbar vertebra joint with service aisle; Handle be provided with localizer on the witness marker 11 that cooperates of witness marker 6;
(3) straight boring comprises drilling rod 12, and the drilling rod front end is provided with straight drill 13, and the straight drill diameter is 4mm, and drilling rod is provided with the service aisle handle dark retaining of limit that to cooperate, make straight brill boring controlling depth be 9mm and dashes forward 14;
(4) round bur comprises drilling rod 15, and the drilling rod front end is provided with round bur head 16, and the straight drill diameter is 6mm, and drilling rod is provided with that to cooperate, make straight brill boring controlling depth with the service aisle handle be the dark retaining prominent 17 of limit of 6mm;
(5) implantation device comprises outer tube 18, and the outer tube leading section is grasping part 19 forms that are prone to expansion, firmly grasp, and dress is implanted bar 20 in the outer tube, and outer tube is provided with the dark retaining prominent 21 of the limit that cooperates with the service aisle handle.
Method for using:
Direct-view or C arm X-ray machine perspective down percutaneous localizer is placed the center of the articular process of lumbar vertebra articular surface that needs fusion; Measure the articular process of lumbar vertebra joint angle to confirm the needle angle of localizer according to CT before the art; Can knock the localizer afterbody gently in case of necessity; Make it break through joint capsule easily, localizer is inserted the articular process of lumbar vertebra joint space, insert it into degree of depth 5mm.Service aisle is inserted along localizer, and rotation can alleviate resistance gently.When expansion tooth in the location of service aisle head arrived articular process, the patient can run into obvious resistance, gently revolves handle the witness marker on the handle is alignd with the witness marker of localizer tail end.At this moment; Service aisle front end head canine tooth shape projection is alignd with the articular process of lumbar vertebra joint space; Can the big dentation of service aisle be positioned articular process of lumbar vertebra intraarticular 2mm after impacting, take out localizer, insert directly and bore; Holing touches the handle of service aisle to the dark device of the limit of drill bit, this moment, drilling depth was 9mm.Take out straight boring, impact the service aisle cover once more gently, make service aisle continue to insert 3mm in the joint space, expand tooth and all get into the articular process of lumbar vertebra joint space this moment, and the joint space is strutted 3mm, and denticulation is fixed in inferior articular process with service aisle.Insert round bur to limitting deep-seated to put; This moment, drilling depth was 6mm, was equivalent to than the shallow 3mm of straight drill, loosened the articular surface of polishing behind the service aisle; Strut articular process of lumbar vertebra joint space 3mm once more; Take out round bur, catch the last cylinder 2 of articular process of lumbar vertebra joint fusion device, fusion device is sent into from service aisle with the implantation device grasping part.Hammer its tail end gently into shape with hand hammer, can fusion device be implanted in the good articular surface of mill.Withdraw from service aisle.
The advantage of articular process of lumbar vertebra joint fusion: stabilizing spine, fusion rate is high, does not have the complication of implant bending, fracture anergy, reduces the postoperative lumbar vertebra pain, does not use a kind of rear pillar of metal implant to merge biology; Can under Wicresoft's condition, operate; Expense is low, shortens operating time and reduces the hospital stays; Tool operation provides the safety of operation; Tissue and bone destruction have been reduced; It is few to lose blood in the art, improves patient satisfaction.Quite low nerve injury incidence rate, fin-shaped shape structure have improved the stability and the anti-displacement capacity of implant.
The indication of articular process of lumbar vertebra joint fusion: think when vertebrae plate resection or diskectomy and can independent articular process fix or situ fusion; Treatment or prevention adjacent phases pathological changes; The articular process of lumbar vertebra joint fusion can increase extra fixing, and the support of twin columns is provided; Can be used as implants and take out the stability of augmenting that provides behind back or the loosening anergy of implants.
Claims (1)
1. the implanting device of the prominent joint fusion device of waist joint is characterized in that: comprise localizer, service aisle, straight brill, round bur, implantation device; Wherein:
(1) localizer comprises the draw point bar; Draw point bar front end is provided with insert head, and the diameter of draw point bar is 6mm, and the insert head front end is a taper; The insert head rear end is cylindric; And cylindric rear end diameter is 3mm, and the height of insert head is 5mm, and the draw point rod rear end is provided with the articular process of lumbar vertebra joint and intermittently moves towards consistent witness marker;
(2) service aisle comprises that diameter is the tubular body of 10mm; Tubular body rear end dress handle; The leading section of tubular body is provided with 6 dentations, and wherein two has been the big Odontoid process of expansion joint intermittent action, and four for to be fixed in the little Odontoid process on the articular process of lumbar vertebra joint with service aisle; Handle be provided with localizer on the witness marker that cooperates of witness marker;
(3) straight boring comprises drilling rod, and the drilling rod front end is provided with straight drill, and the straight drill diameter is 4mm, and drilling rod is provided with the service aisle handle dark retaining of limit that to cooperate, make straight brill boring controlling depth be 9mm and dashes forward;
(4) round bur comprises drilling rod, and the drilling rod front end is provided with the round bur head, and the straight drill diameter is 6mm, and drilling rod is provided with that to cooperate, make straight brill boring controlling depth with the service aisle handle be that the dark retaining of limit of 6mm is prominent;
(5) implantation device comprises outer tube, and the outer tube leading section is the grasping part form that is prone to expansion, firmly grasps, and dress is implanted bar in the outer tube, and it is prominent that outer tube is provided with the dark retaining of the limit that cooperates with the service aisle handle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102444374A CN101433479B (en) | 2008-12-03 | 2008-12-03 | Lumbar zygapophysial joints fusion device and implantation device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102444374A CN101433479B (en) | 2008-12-03 | 2008-12-03 | Lumbar zygapophysial joints fusion device and implantation device thereof |
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| CN101433479A CN101433479A (en) | 2009-05-20 |
| CN101433479B true CN101433479B (en) | 2012-02-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9204906B2 (en) | 2009-10-22 | 2015-12-08 | Nuvasive, Inc. | Posterior cervical fusion system and techniques |
| TWI624244B (en) * | 2014-03-28 | 2018-05-21 | Paonan Biotech Co Ltd | Spinal facet joint fusion fixture with three-dimensional mesh body |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106890019A (en) * | 2015-12-18 | 2017-06-27 | 于鹏 | A kind of orthopedic instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0567424B1 (en) * | 1992-04-24 | 1998-07-01 | José Vicente Barbera Alacreu | Vertebral prosthesis for the substitution of a vertebra in malignant tumour surgery |
| US6371988B1 (en) * | 1996-10-23 | 2002-04-16 | Sdgi Holdings, Inc. | Bone grafts |
| CN2699847Y (en) * | 2004-04-19 | 2005-05-18 | 黄会岳 | Vertebra fixator structure |
| CN1270674C (en) * | 2001-03-20 | 2006-08-23 | 斯派科股份公司 | Spherical spinal implant |
-
2008
- 2008-12-03 CN CN2008102444374A patent/CN101433479B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0567424B1 (en) * | 1992-04-24 | 1998-07-01 | José Vicente Barbera Alacreu | Vertebral prosthesis for the substitution of a vertebra in malignant tumour surgery |
| US6371988B1 (en) * | 1996-10-23 | 2002-04-16 | Sdgi Holdings, Inc. | Bone grafts |
| CN1270674C (en) * | 2001-03-20 | 2006-08-23 | 斯派科股份公司 | Spherical spinal implant |
| CN2699847Y (en) * | 2004-04-19 | 2005-05-18 | 黄会岳 | Vertebra fixator structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9204906B2 (en) | 2009-10-22 | 2015-12-08 | Nuvasive, Inc. | Posterior cervical fusion system and techniques |
| TWI624244B (en) * | 2014-03-28 | 2018-05-21 | Paonan Biotech Co Ltd | Spinal facet joint fusion fixture with three-dimensional mesh body |
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| Publication number | Publication date |
|---|---|
| CN101433479A (en) | 2009-05-20 |
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