CN2659381Y - Saddle joint of human cervical vertebra - Google Patents
Saddle joint of human cervical vertebra Download PDFInfo
- Publication number
- CN2659381Y CN2659381Y CNU03231504XU CN03231504U CN2659381Y CN 2659381 Y CN2659381 Y CN 2659381Y CN U03231504X U CNU03231504X U CN U03231504XU CN 03231504 U CN03231504 U CN 03231504U CN 2659381 Y CN2659381 Y CN 2659381Y
- Authority
- CN
- China
- Prior art keywords
- joint
- cervical vertebra
- pedestal
- people
- saddle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
Abstract
The utility model provides a human neck saddle shape joint. The utility model consists of upper and lower joints, each two half joint consists of a half joint and a base which is embedded combined by the coattail groove structure, the upper and lower half joints are combine as the saddle shape. The back of the base is provided with a number of nails thorns and or pearl powder; and or hydroxyapatite coating in order to fix the combination of the joint and bone spine. This joint can be implanted into disease site of the patients through surgery operation. Using this saddle-shaped surface joint can applly to spine instability, vertebra disc extruding and vertebra diseases caused by the fading degeneration.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specifically related to a kind of human cervical spine sellar joint.
Background technology
Human cervical spine is volume minimum but motility maximum in the spinal column, the highest sections of movable frequency.Owing to constantly bear various loads, strain, and the prolongation of the average life span, because of the sickness rate of cervical vertebra instability, prolapse of cervical intervertebral disc and cervical spondylosis due to the degeneration becomes the modal disease of Orthopaedics Clinic, and due to illness a lot of patients may become the infringement spinal nervous tissue and cause limbs disturbance, even cause quadriplegia, cause huge misery for patient, relatives.At present, treat above-mentioned disease clinically and adopt the cervical vertebral space decompression and fusion more, be i.e. bone grafting internal fixation with steel plate or interface implants bone graft fusion.Above-mentioned therapy has been destroyed the physiological activity function (particularly multi-segmental cervical spondylosis) of cervical intervertebral disk in treatment, make to merge to go up the power increase that sections and following sections bear and the degeneration of bringing out upper and lower intervertebral space.
Summary of the invention
The purpose of this utility model is to propose a kind of novel cervical vertebra joint that more can be fit to the human cervical spine active state.
The cervical vertebra joint of this utility model design is made of upper and lower two semiarthrosis cooperation.Wherein, upper and lower two semiarthrosis are by a semi-articulation body and the chimeric composition of pedestal, and are usually can the oat tail groove structure form between semi-articulation body and the pedestal chimeric, and are that the saddle face cooperates contact between upper and lower two semi-articulation bodies; The back side of pedestal is equipped with some nail thorns and/or Margarita face, and/or hydroxyapatite coating layer, so that with joint and neck bone secure bond.Its structure such as Fig. 1-shown in Figure 2.
In this utility model, the chimeric side end of the dovetail groove of upper and lower two pedestals also is respectively equipped with one 90 flanging about degree, so that with pedestal location and fixing.And at this flanging place, be provided with pin hole, further joint body and pedestal fixed by pin.
In this utility model, a pair of saddle face joint body has the radian of different radii respectively at sagittal plane and coronalplane, and each radian face cooperates contact, the corresponding radius of the radian unanimity of last inferior articular surface, and its structure is as shown in Figures 2 and 3.The back side of last inferior articular surface is respectively equipped with the swallow-tail form tongue, and this tongue just in time is embedded in respectively in the groove of two substrate front side.
The cervical vertebra sellar joint of this utility model design can adopt medical titanium alloy or medical stainless steel, or/and material such as medical polyethylenes.
According to the physiological activity characteristic of people's neck bone, actions such as it bends and stretches before and after can doing, left and right sides lateral bending, one-sided rotation.And, different neck bone sections, it bends and stretches, the angle of lateral bending, rotation all has difference.The reference data that following table generally, is arranged:
| Cervical vertebra sections C 3-4 C 4-5 C 5-6 C 6-7 | Bend and stretch 15 20 20 7 | Lateral bending (one-sided) 11 11 87 | Rotation (single false) 7776 |
Illustrate: C represents neck bone, and subscript is represented sections.Bend and stretch, the unit of lateral bending, rotation is degree.
According to the lesion locations and the range of activity thereof of cervical intervertebral disk, the plurality of specifications size that cervical intervertebral disk prosthesis can be designed to vary in size is with the requirement of the bending and stretching of the cervical vertebra that satisfies different parts, lateral bending and rotation.
The cervical vertebra sellar joint of this utility model design can be by surgical operation with its position of implanting patient's cervical spine disk pathological change, and the sellar joint face is involutory, and two pedestals are fixed two parts about the sellar joint face.Pedestal is fixed in up and down on two cervical vertebral body sections by caltrop.Further joint body and pedestal are fixed by pin.Use this cervical vertebra sellar joint, can reduce pressure to cervical vertebral space, and can recover the physiological activity function and the physiology height in this gap, this joint is applicable to cervical vertebra instability, prolapse of cervical intervertebral disc and cervical spondylosis etc. due to the degeneration with indication.
According to the requirement of cervical intervertebral disk joint motion, the movable corner of this sellar joint is determined according to reference number.
Description of drawings
Fig. 1 cuts figure for this cervical vertebra sellar joint sagittal plane center.
Fig. 2 is this cervical vertebra sellar joint side view.
Fig. 3 cuts figure for this cervical vertebra sellar joint axle center coronalplane.
Fig. 4 cuts figure for upper joint side view and coronalplane, and wherein Fig. 4 (a) is the top base side view, and Fig. 4 (b) cuts figure for the top base coronalplane, and Fig. 4 (c) is a upper joint side view, and Fig. 4 (d) cuts figure for upper joint body coronalplane.
Fig. 5 cuts figure for hypozygal side view and coronalplane, and wherein Fig. 5 (a) is the bottom base side view, and Fig. 5 (b) cuts figure for the bottom base coronalplane, and Fig. 5 (c) is a hypozygal side view, and Fig. 5 (d) cuts figure for hypozygal body coronalplane.
Fig. 6 cuts figure for upper joint sagittal plane center.
Fig. 7 cuts figure for hypozygal sagittal plane center.
Fig. 8 is the upper joint vertical view.
Fig. 9 is the hypozygal upward view.
Number in the figure: 1 is upper joint, and 2 is hypozygal, and 3 is top base, and 4 is the upper joint body, and 5 is bottom base, and 6 is the hypozygal body, and 7 is the top base flanging, and 8 is the bottom base flanging, and 9 is pin, and 10 is the nail thorn at the pedestal back side, and 11 is the dovetail groove on the pedestal.
The specific embodiment
The invention is further illustrated by the following examples, but be not limited to this embodiment.
Embodiment, as shown in drawings, the substrate of upper joint is a rectangle, its length is 13mm, and width is 12.30mm, and thickness is 2mm, the bottom width of dovetail groove is 7.75mm, groove oral area 6mm, degree of depth 1.25mm, the height of block are 3.5mm, the height of caltrop is 1mm, several are distributed in the back side of substrate altogether, and the pedestal of caltrop is a square, length of side 1mm.The bottom width of the swallow-tail form tongue at the back side, last saddle face joint is 6mm, top 7.75mm, degree of depth 1.25mm.The back side, last saddle face joint width is 11mm, and length is 15mm, and thickness is 2mm, and the back side, last saddle face joint sagittal plane radius is 7.44mm, and the coronalplane radius is 13.45mm.The substrate of hypozygal is a rectangle, its length is 14mm, and width is 15mm, and thickness is 2mm, the bottom width of dovetail groove is 7.75mm, groove oral area 6mm, degree of depth 1.25mm, the height of block are 3.5mm, the height of caltrop is 1mm, several are distributed in the back side of substrate altogether, and the pedestal of caltrop is a square, length of side 1mm.The bottom width of the swallow-tail form tongue at the back side, following saddle face joint is 6mm, top 7.75mm, degree of depth 1.25mm.The back side, following saddle face joint width is 15mm, and length is 16mm, and thickness is 3mm, and the back side, following saddle face joint sagittal plane radius is 7.44mm, and the coronalplane radius is 13.45mm.Adopt the medical stainless steel material, or the medical titanium alloy material, and/or the medical polyethylene material, make through certain processes, promptly get a kind of people's cervical vertebra sellar joint of model.
Claims (3)
1, a kind of people's cervical vertebra joint is cooperated by upper and lower two semiarthrosis to constitute, and it is characterized in that upper and lower two semiarthrosis are chimeric with the oat tail groove structure form by a semi-articulation body and pedestal, contacts for the saddle face cooperates between upper and lower two semi-articulation bodies; The back side of pedestal is equipped with some nail thorns and/or Margarita face, and/or hydroxyapatite coating layer, so that with joint and neck bone secure bond.
2, people's cervical vertebra according to claim 1 joint is characterized in that the chimeric side end of dovetail groove of upper and lower two pedestals also is respectively equipped with one 90 flanging about degree, so that will be entrenched in the body location, joint in pedestal front and fixing.
3, people's cervical vertebra according to claim 1 joint is characterized in that upper and lower a pair of saddle face joint body has the radian of different radii respectively at sagittal plane and coronalplane, and each radian face cooperates contact, the corresponding radius of the radian unanimity of last inferior articular surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU03231504XU CN2659381Y (en) | 2003-05-26 | 2003-05-26 | Saddle joint of human cervical vertebra |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU03231504XU CN2659381Y (en) | 2003-05-26 | 2003-05-26 | Saddle joint of human cervical vertebra |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2659381Y true CN2659381Y (en) | 2004-12-01 |
Family
ID=34326152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU03231504XU Expired - Fee Related CN2659381Y (en) | 2003-05-26 | 2003-05-26 | Saddle joint of human cervical vertebra |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2659381Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101094627B (en) * | 2004-12-28 | 2010-05-12 | 斯恩蒂斯有限公司 | A method and a device for total spinal disc replacement |
-
2003
- 2003-05-26 CN CNU03231504XU patent/CN2659381Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101094627B (en) * | 2004-12-28 | 2010-05-12 | 斯恩蒂斯有限公司 | A method and a device for total spinal disc replacement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |