CN1293849C - Physiological internal fixer for upper cervical vertebra - Google Patents

Physiological internal fixer for upper cervical vertebra Download PDF

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Publication number
CN1293849C
CN1293849C CNB2004100663684A CN200410066368A CN1293849C CN 1293849 C CN1293849 C CN 1293849C CN B2004100663684 A CNB2004100663684 A CN B2004100663684A CN 200410066368 A CN200410066368 A CN 200410066368A CN 1293849 C CN1293849 C CN 1293849C
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CN
China
Prior art keywords
described
upper
rail
cervical vertebra
circular arc
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Application number
CNB2004100663684A
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Chinese (zh)
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CN1586418A (en
Inventor
李郁松
陈德玉
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李郁松
陈德玉
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Priority to CNB2004100663684A priority Critical patent/CN1293849C/en
Publication of CN1586418A publication Critical patent/CN1586418A/en
Application granted granted Critical
Publication of CN1293849C publication Critical patent/CN1293849C/en

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Abstract

The present invention discloses a physiological inner fixing device for an upper cervical vertebra, which comprises a connector which can be connected with a lower cervical vertebra fixing device, a rotating action supporting part and a bending action supporting part, wherein the rotating action supporting part is an annular pivoting coaxial device which is composed of an upper guide track fixed to the skull and an upper sliding block which can slide on the upper guide track; the bending action supporting part is a telescopic mechanism composed of a group of rails and sliding blocks, the lower end of the telescopic mechanism is fixed to the connector, and the upper end of the telescopic mechanism is connected with the upper sliding block of the annular pivoting coaxial device. The present invention adopts a plurality of groups of movable mechanisms which can better recover the physiological motion of the upper cervical vertebrae and maintain normal bending and rotating functions of the upper cervical vertebrae, and the life quality of a patient is greatly increased.

Description

Physiological internal fixer for upper cervical vertebra

Technical field

The present invention relates to medical field, particularly the internal fixation system of upper cervical spine damage.

Background technology

The internal fixation treatment of upper cervical spine damage, be applied to clinical having much at present, but all be integration technology basically, promptly each bascule of upper cervical spine is fixed on a resting position by apparatus, and finally reach the bone fusion whereby, this therapeutic modality and technology are a kind of stationary technology, keeping the support effect on the function, only make upper cervical spine be in immobilized neutral position, the movable function of cervical vertebra 60%-70% has been disappeared thereupon, cause the patient to live and a lot of inconvenience occur, and this technique for fixing will speed up the regression of neighbouring section.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of can maintain upper cervical spine normal physiological activity scope, upper cervical spine is had bend and stretch, the upper cervical spine physiological internal fixation system of rotary moveable function.

Design concept of the present invention is that the mobilizable support fixation assembly of a cover is set in the upper cervical spine scope, and this grip assembly is limited in upper cervical spine in the normal physiological activity scope, and intraspinal content spinal cord is not suffered oppression; Can stretch relatively and slide again between this grip assembly simultaneously, with the bending and stretching and rotatablely moving of support upper cervical spine, thereby realization is to the reconstruction of the bending and stretching of upper cervical spine, spinfunction.

Based on above design, the present invention adopts following technical scheme: a kind of physiological internal fixer for upper cervical vertebra, comprise the adapter that can be connected with following cervical vertebra fixture, also comprise spinning movement support part and flexor support part, described spinning movement support partly is that the rotation of a ring pivot is with the rail device, form by a upper rail and the top shoe that can in described upper rail, slide that is fixed on the skull, described flexor support partly is the telescoping mechanism that is made of one group of guide rail and slide block, its lower end is fixed on the adapter, and the upper end is connected with the top shoe of described ring pivot rotation with the rail device.

A kind of preferred version as technique scheme: described flexor support sector divides and comprises that each side having a ring pillow to bend and stretch with rail device and a ring pivot bends and stretches with the rail device, and first, second tranverse connecting rod, described ring pillow bends and stretches with the intermediate slider of rail device by intermediate rail and slip therein and constitutes, described ring pivot bends and stretches with the sliding block of rail device by lower guideway and slip therein and constitutes, described intermediate rail is fixed on the upper end of sliding block, the lower guideway of the left and right sides is connected on the adapter, connect with described first tranverse connecting rod between the adapter of the left and right sides, the upper end of the intermediate slider of the left and right sides is separately fixed at the two ends of described second tranverse connecting rod, the interposition of second tranverse connecting rod is equipped with a through hole, and the bar portion of described top shoe passes this through hole and is slidingly matched with it.Like this, flexor support part just forms a frame structure, and this structure has improved rigidity, intensity and the stability of whole device, helps the synchronous coordination of cervical vertebra left and right sides action, improves system coordination stability.

In such scheme, a kind of preferred structure of described upper rail is a circular arc, has the chute of circular arc on it, the cross section of chute is for trapezoidal, the top shoe head also has identical radian, and the cross section also is trapezoidal, and the head of top shoe is slidingly matched with upper rail in chute.This structure mainly is the curve movement of support zone when adapting to head rotation, guarantees that simultaneously the head of top shoe can normally slide in chute and can not take off.

In above-mentioned preferred version, the intermediate rail that the makeup ring pillow bends and stretches with the rail device is that circular arc guide pin bushing, intermediate slider are the circular arc guide pillar, and the lower guideway that the makeup ring pivot bends and stretches with the rail device is that circular arc guide pin bushing, sliding block are the circular arc guide pillar.If circular arc guide pillar guide pin bushing is designed to the square-section, can prevent relatively rotating between the guide pillar guide pin bushing, avoid the irregular movement of whole device.

In above-mentioned preferred version, first, second tranverse connecting rod is a rigid rod.In order to adapt to the special shape of structure behind the cervical vertebra, first tranverse connecting rod can be crooked.

The present invention adopts many group movable devices, has simulated the physiological activity of upper cervical spine preferably, makes upper cervical spine portion keep bending and stretching normally and spinfunction, has alleviated the inconvenient and painful of patient greatly.Simultaneously, the technical solution used in the present invention can keep the normal activity scope of upper cervical spine effectively, also can not cause further injury to cervical vertebra and spinal cord etc., and therefore higher safety is arranged.

Description of drawings

Fig. 1 is the structure chart of a kind of physiological internal fixer for upper cervical vertebra of the present invention.

The specific embodiment

The invention will be further described below in conjunction with the drawings and specific embodiments:

Physiological internal fixer for upper cervical vertebra shown in Figure 1 comprises that the pivot rotation of a ring is bent and stretched with rail device, two ring pillows with rail device and two ring pivots and bends and stretches with rail device and two adapters 8, first tranverse connecting rod 9, second tranverse connecting rod 4.The rotation of ring pivot is fixed on the skull with the upper rail 1 of rail device; Intermediate rail 3 and intermediate slider 2 that the makeup ring pillow bends and stretches with the rail device are the guide pillars and bushes of circular arc, and it also is the guide pillars and bushes of circular arc that the makeup ring pivot bends and stretches with the lower guideway 7 of rail device and sliding block 6; The intermediate rail 3 of the left and right sides is separately fixed at the upper end of sliding block 6; The two ends of second tranverse connecting rod 4 are connected with intermediate slider 2 upper ends of the left and right sides respectively; The head of top shoe 5 is stuck in the chute of upper rail 1, the head of top shoe 5 has identical radian with chute and can slide along chute, the bottom bar portion of top shoe 5 inserts in the hole of second tranverse connecting rod 4, and can be Kong Zhongzuo sliding up and down among a small circle, the lower end of top shoe 5 is provided with pin, prevents that slider from deviating from from the hole of second tranverse connecting rod 4; The lower guideway 7 of the left and right sides is connected with adapter 8 respectively, and the two ends of first tranverse connecting rod 9 are connected with the adapter 8 of the left and right sides respectively; Adapter 8 is fixed on down on the pedestal of cervical vertebra.

The pedestal that is connected with the present invention can be other known posterior cervical internal fixation system, as the LOCATION OF PEDICLE SCREW FIXATION system.In order to connect with different pedestal, adapter of the present invention can have different interface shapes, in practical clinical, should be according to different pedestals, and select for use the adapter of the corresponding interface to be attached thereto and connect.

Mounting means of the present invention is as follows: earlier left and right sides adapter 8 is fixed on the pedestal, first tranverse connecting rod 9 is installed on the adapter 8, temporarily slightly tightens, and then the installing ring pivot bends and stretches with rail device and ring pillow and bends and stretches with the rail device on adapter 8; Second tranverse connecting rod 4 that top shoe 5 is housed is installed on the upper end of intermediate slider 2, and the head with top shoe 5 embeds in the chute of upper rail 1 again, upper rail 1 is fixed on the relevant position of occipital bone.According to the link position between the corresponding parts of needs adjustment of the mobility of upper cervical spine, then tighten each screw.

Its operation principle: the ring dentata is when bending and stretching, and the ring pivot bends and stretches with the work of rail device, and the sliding block 6 that the ring pivot bends and stretches with the rail device slides in lower guideway 7, and the sliding scale of sliding block 6 will encircle dentata and bend and stretch and be limited in the tolerance band, prevent to oppress the canalis spinalis content.

The ring vertebra occipitalis is when bending and stretching, and the ring vertebra occipitalis bends and stretches with the work of rail device, and the intermediate slider 2 that the ring pillow bends and stretches with the rail device slides in intermediate rail 3, and the sliding scale of intermediate slider 2 will encircle vertebra occipitalis and bend and stretch and be limited in the tolerance band, prevent to oppress the canalis spinalis content.

During the rotation of ring dentata, the rotation of ring pivot is with the work of rail device, and top shoe 5 slides in upper rail 1, and the sliding scale of top shoe 5 will encircle the dentata rotation and be limited in the tolerance band, simultaneously top shoe 5 can slide up and down in the hole of second tranverse connecting rod 4, and is axial up and down in the time of can satisfying the rotation of ring dentata.

Claims (6)

1. physiological internal fixer for upper cervical vertebra, comprise the adapter (8) that can be connected with following cervical vertebra fixture, it is characterized in that: also comprise spinning movement support part and flexor support part, described spinning movement support partly is that the rotation of a ring pivot is with the rail device, comprise a upper rail (1) and the top shoe (5) that can in described upper rail (1), slide that is fixed on the skull, described flexor support partly is the telescoping mechanism that is made of one group of guide rail and slide block, its lower end is fixed on the adapter (8), and the upper end is connected with the top shoe (5) of described ring pivot rotation with the rail device.
2. physiological internal fixer for upper cervical vertebra according to claim 1, it is characterized in that: described flexor support sector divides and comprises that each side having a ring pillow to bend and stretch with rail device and a ring pivot bends and stretches with the rail device, and first, second tranverse connecting rod (9,4), described ring pillow bends and stretches with the intermediate slider (2) of rail device by intermediate rail (3) and slip therein and constitutes, described ring pivot bends and stretches with the sliding block (6) of rail device by lower guideway (7) and slip therein and constitutes, described intermediate rail (3) is fixed on the upper end of sliding block (6), the lower guideway of the left and right sides (7) is connected on the adapter (8), connect with described first tranverse connecting rod (9) between the adapter of the left and right sides, the upper end of the intermediate slider of the left and right sides (2) is separately fixed at the two ends of described second tranverse connecting rod (4), the interposition of second tranverse connecting rod (4) is equipped with a through hole, and the bar portion of described top shoe (5) passes this through hole and is slidingly matched with it.
3. physiological internal fixer for upper cervical vertebra according to claim 1, it is characterized in that: described upper rail (1) is circular arc, has the chute of circular arc on it, and the cross section of chute is for trapezoidal, the top shoe of Pei Heing (5) head also has identical radian with it, and the cross section also is trapezoidal.
4. physiological internal fixer for upper cervical vertebra according to claim 2, it is characterized in that: described intermediate rail (3) is the circular arc guide pillar for circular arc guide pin bushing, intermediate slider (2), and described lower guideway (7) is that circular arc guide pin bushing, sliding block (6) are the circular arc guide pillar.
5. physiological internal fixer for upper cervical vertebra according to claim 2 is characterized in that: described first, second tranverse connecting rod (9,4) is a rigid rod.
6. physiological internal fixer for upper cervical vertebra according to claim 4 is characterized in that: described circular arc guide pillar guide pin bushing is the square-section.
CNB2004100663684A 2004-09-14 2004-09-14 Physiological internal fixer for upper cervical vertebra CN1293849C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2004100663684A CN1293849C (en) 2004-09-14 2004-09-14 Physiological internal fixer for upper cervical vertebra

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2004100663684A CN1293849C (en) 2004-09-14 2004-09-14 Physiological internal fixer for upper cervical vertebra

Publications (2)

Publication Number Publication Date
CN1586418A CN1586418A (en) 2005-03-02
CN1293849C true CN1293849C (en) 2007-01-10

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423816A (en) * 1993-07-29 1995-06-13 Lin; Chih I. Intervertebral locking device
CN1169848A (en) * 1996-05-31 1998-01-14 美商·艾克罗米德公司 Spinal column retaining apparatus
US5776198A (en) * 1994-12-09 1998-07-07 Sdgi Holdings, Inc. Adjustable vertebral body replacement
CN2305959Y (en) * 1996-08-09 1999-02-03 池永龙 Frame-type plus-minus screw bolt angle nail basefixer for spine
CN2393490Y (en) * 1999-11-10 2000-08-30 金大地 Inner fixator in front of cervical vertebra
US6730088B2 (en) * 2001-08-29 2004-05-04 Chung-Chun Yeh Device for fixing spinal column under treatment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423816A (en) * 1993-07-29 1995-06-13 Lin; Chih I. Intervertebral locking device
US5776198A (en) * 1994-12-09 1998-07-07 Sdgi Holdings, Inc. Adjustable vertebral body replacement
CN1169848A (en) * 1996-05-31 1998-01-14 美商·艾克罗米德公司 Spinal column retaining apparatus
CN2305959Y (en) * 1996-08-09 1999-02-03 池永龙 Frame-type plus-minus screw bolt angle nail basefixer for spine
CN2393490Y (en) * 1999-11-10 2000-08-30 金大地 Inner fixator in front of cervical vertebra
US6730088B2 (en) * 2001-08-29 2004-05-04 Chung-Chun Yeh Device for fixing spinal column under treatment

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