CN203815664U - Inelastic and elastic combined intervertebral support device - Google Patents
Inelastic and elastic combined intervertebral support device Download PDFInfo
- Publication number
- CN203815664U CN203815664U CN201420206077.XU CN201420206077U CN203815664U CN 203815664 U CN203815664 U CN 203815664U CN 201420206077 U CN201420206077 U CN 201420206077U CN 203815664 U CN203815664 U CN 203815664U
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- China
- Prior art keywords
- jacking block
- resilient
- support device
- elasticity
- block
- 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 - Lifetime
Links
- 230000004927 fusion Effects 0.000 abstract description 21
- 238000000034 method Methods 0.000 description 9
- 210000000744 eyelid Anatomy 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 208000035475 disorder Diseases 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- TVZRAEYQIKYCPH-UHFFFAOYSA-N 3-(trimethylsilyl)propane-1-sulfonic acid Chemical compound C[Si](C)(C)CCCS(O)(=O)=O TVZRAEYQIKYCPH-UHFFFAOYSA-N 0.000 description 1
- 206010050296 Intervertebral disc protrusion Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- ZPOLOEWJWXZUSP-WAYWQWQTSA-N bis(prop-2-enyl) (z)-but-2-enedioate Chemical compound C=CCOC(=O)\C=C/C(=O)OCC=C ZPOLOEWJWXZUSP-WAYWQWQTSA-N 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 206010025005 lumbar spinal stenosis Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 208000005198 spinal stenosis Diseases 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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 relates to an inelastic and elastic combined intervertebral support device, which comprises a housing, and is characterized in that a top block assembly and a propulsion block are connected on the housing; a limiting assembly is connected to the tail end of the housing; at the same time, the adopted top block assembly comprises an elastic top block or an inelastic top block, and the limiting assembly is a limiting screw; a conical surface is set on the propulsion block. In this way, by cooperation between the top block assembly and the limiting assembly, elastic and inelastic combined intervertebral support is satisfied. At the same time, larger contact area and good support are guaranteed, and sinking is reduced; the movement of the intervertebral support device is prevented; and stability and reliability of the support device are increased. In a word, the intervertebral support device provided by the utility model is suitable for traditional open and minimally invasive spinal column elastic fixation and various spinal column fusion operations.
Description
Technical field
This utility model relates to a kind of eyelid retractor, relates in particular to a kind of non-resilient and elasticity combination type interspinous support device.
Background technology
In recent years, spinal column flexible fastening and integration technology are all often applied to the various spine disorderses of clinical treatment, as intervertebral disc prolapse, lumbar spinal stenosis, spondylolishesis etc.Although spinal column flexible fastening technology makes significant progress, it does not also mean that the termination of spinal fusion skill, and spinal fusion is still one of main method of the various spine disorderses for the treatment of at present.Spinal column flexible fastening technology and spinal fusion are complementary relationships, should decide according to the different patients' of various disease different demands the selection of these technology.Spinal column flexible fastening technology, according to its design principle and technology, can be divided into following 4 classes: 1. segregation apparatus between spinous process, comprises DIAM device, X-stop system, Wallis system, Minns silicone segregation apparatus and Coflex device; 2. tie device between spinous process, comprises elasticity tie and Loop system; 3. pedicle tie device, comprises FASS system, Dynesys system, Graf tie; 4. the rigid metal device of pedicle half, as IsobarTTL system, Twinflex system, DSS system etc.They can well maintain spinal motion function, stress equilibrium is distributed, avoided the loss of motor function of the corresponding sports sections that existing interbody fusion brings, stress abnormality concentrates on contiguous intervertebral disc and articular process and then accelerates the problem of the regression of adjacent discs and articular process.
In process of clinical application, also there are some problems in existing non-fusion product, and as narrower in spinous process elastic fixing device indication, fracture of spinous process causes interior fix unsuccessfully etc.Pedicle tie device need to support and cause the two load excessively with zygapophysial joints and vertebral body relief angle, causes articular degeneration and root compression etc.; Pedicle screw elastic fixing device need unload intervertebral disc load and cause that screw loosening at a specified future date, wound are larger etc.Of a great variety for the various fusion devices of spinal fusion, as BAK type, Ray type, Harms type, Brantigan cuboid, cylindrical Cage, close mowing mark screw thread Cage, PEEk Invasive lumbar fusion device, B-twin expansion type Invasive lumbar fusion device, entirely close expansion type Invasive lumbar fusion device etc.Along with the technology of minimally invasive spine surgery develops rapidly, various expansion fusion devices that can deformation are as B-twin, entirely close expansion type Invasive lumbar fusion device etc., be widely used in clinically owing to thering is the advantages such as wound is little, easy for installation, had the trend that represents following fusion device developing direction.But expansion type Invasive lumbar fusion device also exposes a lot of deficiencies in using, if any contact area little, easily stress concentration bone absorption " is sunk ", causes long-term postoperative intervertebral height to lose, and may cause intervertebral foramina stenosis card to press nerve root cause clinical symptoms and affect the treatment.Some expansion opened part intensity is poor, may rupture.Also have only for expanding in front end one end, front end produces to expand and struts and rear end can not deformation, the stressed uniformity that is difficult in front and back of vertebral body, when the position of fusion device in intervertebral space is undesirable, expansion is easily shifted after strutting, stability and reliability are poor etc.
In view of this, urgently for above-mentioned technical problem, a kind of combination type interspinous support device that can intervertebral flexible fastening can realize again intervertebral fusion of the design that looks for another way, larger stability and reliability can be provided, to adapt to the different Treatment need such as flexible fastening or intervertebral fusion, thereby keep the desirable state of spinal column to improve curative effect.
Utility model content
The purpose of this utility model is exactly in order to solve the above-mentioned problems in the prior art, and a kind of non-resilient and elasticity combination type interspinous support device is provided.
The purpose of this utility model is achieved through the following technical solutions:
Non-resilient and elasticity combination type interspinous support device, include shell, it is characterized in that: on described shell, be connected with jacking block assembly and forward block, described shell tail end is connected with limit assembly, described jacking block assembly includes elasticity jacking block or non-resilient jacking block, described limit assembly is stop screw, on described forward block, is provided with the conical surface.
Further, above-mentioned non-resilient and elasticity combination type interspinous support device, wherein: described shell is rectangle, the cross section of described shell head end is less than the cross section of shell bottom, on described shell, be distributed with groove, described groove two ends are distributed with limited step, and the tail end of described shell is provided with groove, on described groove, are provided with screwed hole.
Further, above-mentioned non-resilient and elasticity combination type interspinous support device, wherein: the bottom of described non-resilient jacking block is provided with boss, the top of described non-resilient jacking block is distributed with flank, and the contact jaw of described non-resilient jacking block and forward block is distributed with the conical socket adapting with forward block profile.
Again further, above-mentioned non-resilient and elasticity combination type interspinous support device, wherein: the bottom of described elasticity jacking block is provided with boss, the top of described elasticity jacking block is distributed with flank, the contact jaw of described elasticity jacking block and forward block is distributed with the conical socket adapting with forward block profile, described elasticity jacking block is provided with hole, and a side in described hole is provided with telescopic chute, and a side extension of described telescopic chute is distributed with confined planes.
The advantage of technical solutions of the utility model is mainly reflected in: by coordinating of jacking block assembly and limit assembly, can meet the support needs of elasticity and non-resilient combination type intervertebral, meet the resiliently mounted needs of intervertebral.Meanwhile, can ensure to have larger contact area and good support and reduce and sink, prevent that this non-resilient interspinous support device displacement from increasing stability and the reliability of this eyelid retractor.In brief, adopt after this utility model, go for tradition and open and minimally invasive spine flexible fastening and various spinal fusion surgery.
Brief description of the drawings
The purpose of this utility model, advantage and disadvantage, by for illustration and explanation the non-limitative illustration by preferred embodiment below.
Fig. 1 is the organigram that adopts stiff combination type interspinous support device.
Fig. 2 is the edge face structure schematic diagram that adopts stiff combination type interspinous support device.
Fig. 3 is the organigram of overlooking that adopts stiff combination type interspinous support device.
Fig. 4 is the working state schematic representation that adopts stiff combination type interspinous support device.
Fig. 5 is the duty end view that adopts stiff combination type interspinous support device.
Fig. 6 is the organigram that adopts elastic combination type interspinous support device.
| 1 | Shell | 2 | Non-resilient jacking block |
| 3 | Elasticity jacking block | 4 | Forward block |
| 5 | Stop screw | 6 | Head end |
| 7 | Groove | 8 | Limited step |
| 9 | Limited step | 10 | Groove |
| 11 | Screwed hole | 12 | Screwed hole |
| 13 | Flank | 14 | Boss |
| 15 | Boss | 16 | Conical socket |
| 17 | Hole | 18 | Telescopic chute |
| 19 | Confined planes | 20 | The conical surface |
| 21 | Vertebral body | 22 | Lower soleplate |
| 23 | Vertebral body | 24 | Upper soleplate |
Detailed description of the invention
Non-resilient and elasticity combination type interspinous support device as shown in Fig. 1～6, includes shell 1, and its unusual part is: for the ease of meeting the needs of interspinous support, be connected with jacking block assembly and forward block 4 on the shell 1 of employing.Meanwhile, in order to have preferably combination degree, on forward block 4, be provided with the conical surface 20.Specifically, consider the spacing needs of practical operation, ensure good result of use, shell 1 tail end is connected with limit assembly, and this limit assembly is stop screw 5.And, consider different use needs, the jacking block assembly of employing includes elasticity jacking block 3 or non-resilient jacking block 2.
With regard to preferably embodiment of this utility model one, consider the accurate operation in use procedure, meet vertebral body physiological structure needs, shell 1 is taper.Specifically, the cross section of this shell 1 head end 6 is less than the cross section of shell 1 bottom.Meanwhile, in order effectively to hold elasticity jacking block 3 or non-resilient jacking block 2, be distributed with groove 7 on shell 1, described groove 7 two ends are distributed with limited step 8 and limited step 9.And, consider and the combination needs of stop screw 5 be provided with groove 10 at the tail end of shell 1, on this groove 10, be provided with screwed hole 11 and screwed hole 12.
Further, consider and effective combination of groove 7, the bottom of the non-resilient jacking block 2 of employing is provided with boss 14 and boss 15.Meanwhile, be distributed with flank 13 at the top of non-resilient jacking block 2, this non-resilient jacking block 2 is distributed with the contact jaw of forward block 4 conical socket 16 adapting with forward block 4 profiles.
Corresponding with it, consider use needs of some function, the bottom of the elasticity jacking block 3 of employing is provided with boss 14 and boss 15.Be distributed with flank 13 at the top of elasticity jacking block 3, this elasticity jacking block 3 is distributed with the contact jaw of forward block 4 conical socket 16 adapting with forward block 4 profiles.Meanwhile, consider elasticity more can smooth realization, arrange porose 17 at elasticity jacking block 3.And, being provided with telescopic chute 18 in a side in hole 17, a side extension of telescopic chute 18 is distributed with confined planes 19.
In the time that elasticity of demand is fixing, stop screw 5 promotes forward block 4 and advances, and the conical surface 22 of forward block 4 pushes elasticity jacking block 3.Then, elasticity jacking block 3 is from the interior rising of groove 7 or the decline of shell 1, and the limited step 8 under boss 14 and boss 15 and groove 7 contacts also spacing fixing with limited step 9.Now, elasticity jacking block 3 forms good contact and struts with the arcwall face of the lower soleplate 22 of vertebral body 21 and the upper soleplate 24 of the next vertebral body 23.When human motion, in the time that vertebral body 21 and vertebral body 23 are pushed elasticity jacking block 3, elasticity jacking block 3 compression and strain in certain limit occur, can be realized intervertebral flexible fastening by telescopic chute 18 and confined planes 19 like this.
In conjunction with the fixing enforcement of non-resilient intervertebral, when non-resilient intervertebral is fixedly intervertebral fusion, stop screw 5 promotes forward block 4 and advances, the conical surface 22 of forward block 4 pushes non-resilient jacking block 2, non-resilient jacking block 2, from the interior rising of groove 7 or the decline of shell 1, contacts also spacing fixing with limited step 9 to boss 14 and boss 15 and the limited step 8 of groove 7.Now, non-resilient jacking block 2 also forms good contact and struts spacing with the arcwall face of the lower soleplate 22 of upper vertebral body 21 and the upper soleplate 24 of the next vertebral body 23.Like this, can provide larger contact area and good support to reduce and sink, can prevent that again this non-resilient interspinous support device displacement from increasing stability and the reliability of this eyelid retractor.And then, from having improved to the full extent overall use therapeutic effect.
Can find out by above-mentioned character express, adopt after this utility model, by coordinating of jacking block assembly and limit assembly, can meet the support needs of elasticity and non-resilient combination type intervertebral, meet the resiliently mounted needs of intervertebral.Meanwhile, can ensure to have larger contact area and good support and reduce and sink, prevent that this non-resilient interspinous support device displacement from increasing stability and the reliability of this eyelid retractor.In brief, adopt after this utility model, go for tradition and open and minimally invasive spine flexible fastening and various spinal fusion surgery.
These embodiment are only the prominent examples of application technical solutions of the utility model, and all technical schemes of taking to be equal to replacement or equivalent transformation and form, within all dropping on the claimed scope of this utility model.
Claims (4)
1. non-resilient and elasticity combination type interspinous support device, include shell, it is characterized in that: on described shell, be connected with jacking block assembly and forward block, described shell tail end is connected with limit assembly, described jacking block assembly includes elasticity jacking block or non-resilient jacking block, described limit assembly is stop screw, on described forward block, is provided with the conical surface.
2. non-resilient and elasticity combination type interspinous support device according to claim 1, it is characterized in that: described shell is rectangle, the cross section of described shell head end is less than the cross section of shell bottom, on described shell, be distributed with groove, described groove two ends are distributed with limited step, the tail end of described shell is provided with groove, on described groove, is provided with screwed hole.
3. non-resilient and elasticity combination type interspinous support device according to claim 1, it is characterized in that: the bottom of described non-resilient jacking block is provided with boss, the top of described non-resilient jacking block is distributed with flank, and the contact jaw of described non-resilient jacking block and forward block is distributed with the conical socket adapting with forward block profile.
4. non-resilient and elasticity combination type interspinous support device according to claim 1, it is characterized in that: the bottom of described elasticity jacking block is provided with boss, the top of described elasticity jacking block is distributed with flank, the contact jaw of described elasticity jacking block and forward block is distributed with the conical socket adapting with forward block profile, described elasticity jacking block is provided with hole, one side in described hole is provided with telescopic chute, and a side extension of described telescopic chute is distributed with confined planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206077.XU CN203815664U (en) | 2014-04-25 | 2014-04-25 | Inelastic and elastic combined intervertebral support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206077.XU CN203815664U (en) | 2014-04-25 | 2014-04-25 | Inelastic and elastic combined intervertebral support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203815664U true CN203815664U (en) | 2014-09-10 |
Family
ID=51471215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420206077.XU Expired - Lifetime CN203815664U (en) | 2014-04-25 | 2014-04-25 | Inelastic and elastic combined intervertebral support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203815664U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104997577A (en) * | 2014-04-25 | 2015-10-28 | 苏州点合医疗科技有限公司 | Inelastic and elastic combined intervertebral support device |
| CN111006961A (en) * | 2019-09-28 | 2020-04-14 | 力试（上海）科学仪器有限公司 | Accurate adjusting device of testing machine axiality and testing machine |
| WO2023091297A1 (en) * | 2021-11-22 | 2023-05-25 | Warsaw Orthopedic, Inc. | Spinal implant having a compressible insert |
-
2014
- 2014-04-25 CN CN201420206077.XU patent/CN203815664U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104997577A (en) * | 2014-04-25 | 2015-10-28 | 苏州点合医疗科技有限公司 | Inelastic and elastic combined intervertebral support device |
| CN104997577B (en) * | 2014-04-25 | 2018-03-02 | 苏州点合医疗科技有限公司 | A kind of non-resilient and elastomeric composition formula interspinous support device |
| CN111006961A (en) * | 2019-09-28 | 2020-04-14 | 力试（上海）科学仪器有限公司 | Accurate adjusting device of testing machine axiality and testing machine |
| WO2023091297A1 (en) * | 2021-11-22 | 2023-05-25 | Warsaw Orthopedic, Inc. | Spinal implant having a compressible insert |
| US11883302B2 (en) | 2021-11-22 | 2024-01-30 | Warsaw Orthopedic, Inc. | Spinal implant having a compressible insert |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |