CN202136407U - Physiological inner fixing device for subtotal resection of single vertebral body of anterior cervical spine - Google Patents

Physiological inner fixing device for subtotal resection of single vertebral body of anterior cervical spine Download PDF

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Publication number
CN202136407U
CN202136407U CN201120243142U CN201120243142U CN202136407U CN 202136407 U CN202136407 U CN 202136407U CN 201120243142 U CN201120243142 U CN 201120243142U CN 201120243142 U CN201120243142 U CN 201120243142U CN 202136407 U CN202136407 U CN 202136407U
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China
Prior art keywords
fixing device
inner fixing
physiological
hole
header board
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Expired - Fee Related
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CN201120243142U
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Chinese (zh)
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李郁松
蒋秀英
徐饶
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Neurology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Prostheses (AREA)

Abstract

The utility model discloses a physiological inner fixing device for subtotal resection of a single vertebral body of an anterior cervical spine, comprising two fixing seats connected with the cervical vertebrae, two connecting rods and a sleeve. One ends of the two connecting rods are respectively connected with the bottoms of the two fixing seats, long circular holes are respectively arranged at the other ends of the two connecting rods, an anchor post is fixed inside the sleeve, the long circular holes at the end parts of the two connecting rods are sheathed on the anchor post in a sliding manner, the sleeve is connected with two anterior pedicle screws, and pedicle screw caps are screwed at the tail ends of the two pedicle screws. For the fixing device, the sleeve is fixed on the subtotal-resection vertebral body by the anterior pedicle screw, and the two fixing seats are respectively fixed on the two vertical adjacent vertebral bodies, so that the support function of the cervical vertebrae in operation can be reconstructed, and simultaneously, the motion function of the cervical vertebrae can be reconstructed as well. The physiological inner fixing device has a simple structure and is low in manufacturing cost.

Description

The inferior physiological inner fixing device of cutting entirely of the single vertebral body in throat road
Technical field
This utility model relates to a kind of orthopedic medical device, and specifically, relating to a kind of being used for carries out the physiological stationary device to the inferior cervical vertebra of cutting entirely.
Background technology
At present; Throat Lu Ciquan cut decompression and with the adjacent vertebral bodies integration technology, be to cut vertebral body entirely and adjacent two vertebral bodys up and down carry out the fusion of bone grafting property, although this technology can reach steady stability with inferior; But also will cause cervical vertebrate active degree to descend, and quicken to close on the sections intervertebral disc degeneration.
China utility application CN101095626A discloses a kind of Subtotal ablation of anterior cervical vertebrae single corpus vertebrae physiological property inner fixing device; It comprises two holders that can be connected with cervical vertebra; The bottom of holder is provided with ball-and-socket, also comprises a telescoping mechanism, and the two ends of telescoping mechanism connect a ball head rod respectively; The ball-and-socket that the end of ball rod is provided with on bulb and two holders flexibly connects; The outside of telescoping mechanism is provided with the collar, connects two preceding road pedicle screws on the collar, and the end of pedicle screw is screwed with way of escape pedicle of vertebral arch nut.This fixture can make time cuts vertebral body entirely and is supported and protects; Make simultaneously time cut flexion and extension between the last hypocentrum that vertebral body is adjacent entirely, rotatablely move, axially-movable still is able to keep, thereby reduce the compensatory activity of vicinity vertebral body, help preventing the acceleration regression of adjacent vertebral bodies.But it is complicated that its structure is disliked slightly, and manufacturing cost is higher.
The utility model content
The technical problem that this utility model will solve is to provide the simpler throat road of a kind of structure fixture, behind this device implant surgery position, can keep the supporting role of cervical vertebra, can rebuild the motor function of cervical vertebra again.
In order to solve the problems of the technologies described above; This utility model adopts following technical scheme: the single vertebral body in a kind of throat road is inferior to cut physiological inner fixing device entirely, comprises two holders that can link to each other with cervical vertebra, also comprises two connecting rods and a sleeve; One end of said two connecting rods is fixedly connected with the bottom of two holders respectively; The other end of two connecting rods respectively is provided with a slotted hole, and said sleeve inner is fixed an anchor post, and the equal slip cap of the slotted hole of said two connecting rod ends is connected on this anchor post; Connect two preceding road pedicle screws on the said sleeve, the end of preceding road pedicle screw is screwed with the pedicle of vertebral arch nut.
This utility model fixture can be fixed in sleeve through preceding road pedicle screw time cuts on the vertebral body entirely; Two holders are individually fixed in up and down on two adjacent vertebral bodys; Support function that so both can the reconstruction operations cervical vertebra, the motor function that also can rebuild cervical vertebra simultaneously.Simple in structure, the low cost of manufacture of this utility model.
Preferably, said telescopic cross section is a rectangle.
For the ease of installing, said sleeve is formed by fixedly connecting back cell body and protecgulum.
Further, be provided with the projection and the groove of mutual engaging on said back cell body and the protecgulum accordingly.
Further, the rear end of said anchor post is fixed on the cell body of back, and the front end of anchor post is provided with screw thread and passes protecgulum and cooperates with nut, and said back cell body and protecgulum are fixed together.
More preferably, the sidewall of said nut is provided with a minor thread through hole, is provided with a lock-screw in the minor thread through hole, in case nut gets loose.
In technique scheme; A preferred structure of holder is made up of base plate, plate and header board, and wherein header board and plate protrude in the end face of base plate and be parallel to each other, and plate is near the middle part of base plate; Header board is near the edge of base plate, and said connecting rod is fixedly connected on the bottom surface of base plate.
Further, said header board is provided with through hole, plate be provided with header board on the co-axial screwed hole of through hole, at least one screw is located between said header board and the plate.
Preferably, be provided with the screw baffle plate near the through hole of above-mentioned header board, in case screw loosening.
The surface that this device contacts with the vertebral body bone photo all scribbles the bone coating of growing into, and fixed vertebral body and this device are better merged.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment utility model is described further.
Fig. 1 is the structural representation of this utility model physiological inner fixing device.
Fig. 2 is the STRUCTURE DECOMPOSITION sketch map (observing from the rear) of this utility model physiological inner fixing device.
Fig. 3 is the STRUCTURE DECOMPOSITION sketch map (from forward observation) of this utility model physiological inner fixing device.
The specific embodiment
Shown in Fig. 1-3, the single vertebral body in a kind of throat of this utility model road is inferior to cut two holders up and down that physiological inner fixing device comprises that direction is opposing entirely, and two holders can link to each other with cervical vertebra.A preferred structure of holder is made up of base plate 3,4, plate 5,6 and header board 1,2; Wherein header board 1,2 and plate 5,6 protrude in the end face of base plate 3,4 and are parallel to each other; Plate 5,6 is near the middle part of base plate 3,4, and header board 1,2 is near the edge of base plate 3,4.
Also comprise a sleeve in this utility model device, this telescopic a kind of preferred structure is formed by fixedly connecting with protecgulum 15 back cell body 16, and telescopic cross section is a rectangle.Be provided with the projection and the groove of mutual engaging on back cell body 16 and the protecgulum 15 accordingly, play positioning action.The rear end of an anchor post 17 is fixed on the cell body 16 of back, and the front end of anchor post 17 is provided with screw thread and the through hole that passes on the protecgulum 15 cooperates with nut 18, and afterwards cell body 16 and protecgulum 15 are fixed together.The sidewall of nut 18 is provided with a minor thread through hole, is provided with a lock-screw 25 in the minor thread through hole, in case nut gets loose.Connect two preceding road pedicle screws 19,20 on the cell body 16 of telescopic back, the end of preceding road pedicle screw 19,20 is screwed with pedicle of vertebral arch nut 21,22.
Also comprise two connecting rods 7,8, an end of these two connecting rods 7,8 is fixedly connected with the bottom surface of two base plates 3,4 respectively, and the other end of two connecting rods 7,8 respectively is provided with a slotted hole 9,10.The slotted hole 9,10 of two connecting rod 7,8 ends all is socketed on the anchor post 17, and can slide up and down within the specific limits with respect to anchor post 17.
On the header board 1,2 of holder, be provided with through hole, plate 5,6 be provided with header board on the co-axial screwed hole of through hole, at least one screw 11,12,13,14 be located in header board 1,2 and plate 5, between 6.Also be provided with screw baffle plate 23,24 near the through hole of above-mentioned header board 1,2, in case screw 11,12,13,14 is loosening.
The installation method of this utility model fixture is following: inferior cut full vertebral body adjacent on respectively open a grooved hole on the soleplate of hypocentrum; Then telescopic back cell body 16 is fixed in inferior cutting entirely in the rectangle bone groove of vertebral body through two preceding road pedicle screws 19,20; Attach fixing again in the grooved hole with terminal plate of vertebral body about plate 5,6 insertions of two holders; Pass the through hole on the header board 1,2 with hold-down screw 11,12,13,14; Pass vertebral body antetheca cortex again and be screwed in the screwed hole on the plate 5,6 separately, and block with the head of screw baffle plate 23,24 respectively screw 11,12,13,14.Two connecting rods, 7, the 8 terminal slotted holes 9,10 of last lower fixed seat bottom surface are enclosed within on the anchor post 17 in the back cell body 16; Again protecgulum 15 is fastened on the cell body 16 of back; Be screwed in nut 18 end of anchor post 17; Protecgulum 15 and back cell body 16 are combined closely, then the lock-screw 25 on the fastening nut 18.In the way of escape, way of escape pedicle of vertebral arch nut 21,22 is screwed into the rear end of preceding road pedicle screw 19,20, so just this utility model physiological inner fixing device has been installed.All scribble the bone coating of growing on this device and the contacted surface of vertebra, can make the better fusion of fixed vertebral body and this device.
The operation principle that the single vertebral body in this utility model throat road time cuts physiological inner fixing device entirely is: when the cervical vertebra flexion and extension, the connecting rod 7,8 of last hypocentrum holder through its bottom surface limits the motion amplitude of all directions between itself and the sleeve.

Claims (10)

1. the single vertebral body in throat road is inferior cuts physiological inner fixing device entirely, comprises two holders that can link to each other with cervical vertebra, it is characterized in that, also comprises two connecting rods (7; 8) and a sleeve, an end of said two connecting rods (7,8) is fixedly connected with the bottom of two holders respectively, two connecting rods (7; 8) the other end respectively is provided with a slotted hole (9,10), and said sleeve inner is fixed an anchor post (17), the slotted hole (9 of said two connecting rod ends; 10) all slip cap is connected on this anchor post (17), connects two preceding road pedicle screws (19,20) on the said sleeve; The end of preceding road pedicle screw (19,20) is screwed with pedicle of vertebral arch nut (21,22).
2. physiological inner fixing device according to claim 1 is characterized in that, said telescopic cross section is a rectangle.
3. physiological inner fixing device according to claim 2 is characterized in that, said sleeve is formed by fixedly connecting back cell body (16) and protecgulum (15).
4. physiological inner fixing device according to claim 3 is characterized in that, is provided with the projection and the groove of mutual engaging on said back cell body (16) and the protecgulum (15) accordingly.
5. physiological inner fixing device according to claim 3; It is characterized in that; The rear end of said anchor post (17) is fixed on the back cell body (16), and the front end of anchor post (17) is provided with screw thread and passes protecgulum (15) and cooperates with nut (18), and said back cell body (16) and protecgulum (15) are fixed together.
6. physiological inner fixing device according to claim 5 is characterized in that, the sidewall of said nut (18) is provided with a minor thread through hole, is provided with a lock-screw (25) in the minor thread through hole.
7. physiological inner fixing device according to claim 1 is characterized in that, said holder is by base plate (3,4), plate (5,6) and header board (1; 2) form, wherein header board (1,2) and plate (5,6) protrude in the end face of base plate (3,4) and are parallel to each other; Plate (5,6) is near the middle part of base plate (3,4), and header board (1,2) is near base plate (3; 4) edge, said connecting rod (7,8) is fixedly connected on the bottom surface of base plate (3,4).
8. physiological inner fixing device according to claim 7 is characterized in that, said header board (1,2) is provided with through hole; Plate (5,6) be provided with header board (1,2) on the co-axial screwed hole of through hole; At least one screw is located between said header board (1,2) and the plate (5,6).
9. physiological inner fixing device according to claim 8 is characterized in that, is provided with screw baffle plate (23,24) near the through hole of said header board (1,2).
10. physiological inner fixing device according to claim 1 is characterized in that, this device is gone up and the contacted surface of vertebra all scribbles the bone coating of growing into.
CN201120243142U 2011-07-09 2011-07-09 Physiological inner fixing device for subtotal resection of single vertebral body of anterior cervical spine Expired - Fee Related CN202136407U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120243142U CN202136407U (en) 2011-07-09 2011-07-09 Physiological inner fixing device for subtotal resection of single vertebral body of anterior cervical spine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120243142U CN202136407U (en) 2011-07-09 2011-07-09 Physiological inner fixing device for subtotal resection of single vertebral body of anterior cervical spine

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CN202136407U true CN202136407U (en) 2012-02-08

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105055008A (en) * 2015-09-07 2015-11-18 徐嘉炜 Anterior screw plate device capable of being lengthened
CN106236333A (en) * 2016-10-01 2016-12-21 董谢平 The artificial vertebral body of a kind of road nail pedicle fix in the past and location and installation instrument
CN109009380A (en) * 2018-06-26 2018-12-18 黄振强 A kind of fixed device of Via Posterior Spinal Approach multiple spot

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105055008A (en) * 2015-09-07 2015-11-18 徐嘉炜 Anterior screw plate device capable of being lengthened
CN106236333A (en) * 2016-10-01 2016-12-21 董谢平 The artificial vertebral body of a kind of road nail pedicle fix in the past and location and installation instrument
CN109009380A (en) * 2018-06-26 2018-12-18 黄振强 A kind of fixed device of Via Posterior Spinal Approach multiple spot
CN109009380B (en) * 2018-06-26 2021-03-02 黄振强 Spine posterior multi-point fixing device

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120208

Termination date: 20140709

EXPY Termination of patent right or utility model