CN203693818U - Spinal cord compression device - Google Patents
Spinal cord compression device Download PDFInfo
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- CN203693818U CN203693818U CN201420055875.7U CN201420055875U CN203693818U CN 203693818 U CN203693818 U CN 203693818U CN 201420055875 U CN201420055875 U CN 201420055875U CN 203693818 U CN203693818 U CN 203693818U
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- catheter
- compression device
- spinal cord
- bulge
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Abstract
The utility model discloses a spinal cord compression device. The spinal cord compression device comprises a catheter, an expansion part and a fixing part, wherein the catheter is used for delivering filler, the expansion part is used for compressing the spinal cord and arranged at one end of the catheter, the interior of the expansion part is communicated with the catheter, and the fixing part is used for fixing the catheter and the expansion part into the cervical vertebra. According to the technical scheme, the spinal cord compression device has the advantages that compared with existing screw screwing-in models, repeated incision opening is avoided by compressing the spinal cord through the expansion part, and therefore animals can be protected against secondary injuries; the catheter is quite easy to get, can be designed to be of multiple types and is low in price, delivery tubes do not need manufacturing additionally, and therefore cost and time consumption are reduced; the fixing part can prevent the expansion part or the catheter from getting loose. The spinal cord compression device is simple and reliable in structure, convenient to use and high in practicality.
Description
Technical field
This utility model relates to medical instruments field, is specifically related to a kind of spinal compression device.
Background technology
Cervical spondylotic myelopathy (cervical spondylotic myelopathy, CSM) mainly due to prolapse of cervical intervertebral disc, cervical vertebral osteophyte forms, ossification of posterior longitudinal ligament, hypertrophy of ligamentum flavum, the syndrome that the reasons such as spinal canal stenosis and cervical spinal instability cause the tissue such as cervical spinal cord, blood vessel to suffer oppression, stimulate and occur.The sick onset concealment of this disease, continues progress, and pathogenesis and pathological change process are illustrated so far not yet completely, and the many middles and advanced stage of patient are just found this disease clinically, even if surgical intervention is postoperatively often still left over comparatively serious delayed ischemic neurological deficits, prognosis is not good.
The cause of disease and the pathogenesis of Chinese scholars to cervical spondylotic myelopathy, the pathological change after compression of spinal cord still imperfectly understands, and still lacks about the basic research of cervical spondylotic myelopathy.Main cause is that this disease pathomechanism is very complicated, can not be to the pathologic basis research of clinical case development system.
Therefore, for clinicist, how to pass through to build desirable animal model, study, simulate generation and the evolution of cervical spondylotic myelopathy, after discussion Chronic Spinal Cord pressurized, morphological change and its local pathological change process of spinal cord, significant to further investigation cervical spondylotic myelopathy.The good animal model not only cause of disease to disease, pathological research has facilitation, is also significant to exploring clinical new Therapeutic Method and improving clinical therapeutic efficacy.Only, under the animal experimental model condition that approaches truth, could study spinal cord injury mechanism, observe the rear pathophysiological change of damage.
The mode of setting up at present Chronic Spinal Cord damage model is various, and have tumor cell transplantation model, the screw of comparative maturity are inserted rear gradual model, the additional screw compression model of vascular ligation etc. of being screwed into.Insert the rear gradual model that is screwed into as example taking screw, this model adopts living animal as model ontology, places screw to cause compressing, and fill developing material at the cervical vertebral body place of animal.
But screw is inserted the rear gradual model being screwed into needs the repeated multiple times wound of opening to adjust screw position, can cause two-hit to laboratory animal on the one hand, also very easily causes wound infection; And screw be screwed into can not fine simulation spinal compression process.
In addition, taking tumor cell transplantation model as example, this model adopts tumor cell compressing spinal cord, on the one hand, the speed of growth of tumor cell and growth scope controllability are poor, and spinal cord injury development may be too rapid, can not well simulate chronic spinal cord lesion process; On the other hand, malignant tumor all has aggressive, and even all can cause damage to spinal cord, spinal cord surrounding tissue laboratory animal itself.
In addition, also there is modeling mode complexity in above-mentioned model, repeatable poor, the problem that controllability is not good, and practicality is not strong.
Therefore, set up a practicality, kind spinal compression device that controllability is stronger and simple, significant to further investigation cervical spondylotic myelopathy.
Utility model content
The problem that this utility model solves is by a kind of spinal compression device is provided, to form the simple and good Chronic Spinal Cord damage model of controllability of modeling mode.
For addressing the above problem, this utility model provides a kind of spinal compression device, comprising:
Catheter, for delivery of implant;
Bulge, for oppressing spinal cord; Described bulge is located at one end of described catheter, and bulge is inner to be communicated with described catheter;
Fixed part, for being fixed on cervical vertebra by described catheter and bulge.
Optionally, described bulge is sacculus, and described sacculus is communicated with described catheter.
Optionally, described catheter is silicone catheter, and described bulge is silica gel bulge.
Optionally, described fixed part is sheathed on described catheter.
Optionally, described fixed part is hollow soket head cap screw.
Optionally, described hollow soket head cap screw is medical nylon screw.
Optionally, described hollow soket head cap screw is cylinder, and described cylindrical sidewall is provided with screw thread, offers hexagonal hole in cylinder.
Optionally, described implant is contrast agent.
Optionally, the other end of described catheter is connected with syringe, for described implant is injected to catheter.
Compared with prior art, the technical solution of the utility model has the following advantages:
Adopt bulge compressing spinal cord, be screwed into model with respect to existing screw, avoided repeatedly opening wound, to prevent that animal is caused to secondary damage; Catheter itself is very easy to obtain, has Multiple Type available, and relative low price, does not need additionally to make transfer pipeline, has saved cost and time; It is loosening that fixed part can prevent that bulge or catheter from occurring.Simple and reliable for structure, easy to use, there is stronger practicality.
Further, adopt silica gel to make described catheter and described sacculus, on the one hand, silica gel has good biocompatibility, on the other hand, is screwed into model with respect to existing screw, has avoided producing larger artifact in the time carrying out MRI inspection.
Further, adopt hollow soket head cap screw to be directly sheathed on described catheter as fixed part, further simplify the structure.
Further, adopt syringe inject implant, not only handled easily, and inject metering be easy to control, injection process has good controllability.
Brief description of the drawings
Fig. 1 is the structural representation of this utility model spinal compression device one embodiment;
Fig. 2 and Fig. 3 are the structural representations of fixed part one embodiment described in the utility model.
Detailed description of the invention
Existing Chronic Spinal Cord damage model, for spinal cord is played to contention effect, adopts the mode of for example tumor cell or insertion type screw, to simulate the situation of actual spinal cord while being oppressed.But the compressing object of selecting tends to have side effects, for example, and even tumor cell itself may all probably cause damage to spinal cord, spinal cord surrounding tissue laboratory animal itself; In addition, these compressing objects are also difficult to the slowly state of compressing spinal cord of well simulation, example tumor cell described above, the speed of growth of tumor cell is difficult to control, and insertion type screw is difficult to the level of compression of active adjustment to spinal cord, can only, by repeatedly opening manual adjustments after wound, can cause two-hit to animal like this, and wound easily infect.
For this reason, this utility model provides a kind of controlled spinal compression device, is the structural representation of this utility model at an embodiment with reference to figure 1, and described spinal compression device comprises:
Catheter 100, for delivery of implant;
Bulge 200, for oppressing spinal cord; Described bulge 200 is located at one end of described catheter 100, is right-hand member 120 in this Fig. 1; Bulge 200 is inner to be communicated with described catheter 100;
Fixed part 300, described fixed part 300 is for being fixed on cervical vertebra by described catheter 100 and bulge 200.
By in one end of catheter 100, bulge 200 being set, and described bulge 200 is placed in to the cervical vertebra place of animal; Outside catheter 100 other end indwelling animal bodies, in catheter 100, inject dilatant, described dilatant makes described bulge 200 slowly expand and spinal cord is caused to slow compressing.
For above-mentioned purpose of the present utility model, feature and advantage can more be become apparent, below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail.
Continue with reference to figure 1, in the present embodiment, described catheter 100 can adopt 6Fr child catheter, and the diameter of this catheter is less, convenient operation.But this utility model does not limit for the model of catheter.Catheter 100 itself is very easy to obtain, cheap and have Multiple Type available, does not need additionally to make transfer pipeline, has saved cost and time.
The right-hand member 120 of described catheter 100 is also provided with described bulge 200, and described bulge 200 is for stretching into animal cervical vertebra and oppressing spinal cord.
In the present embodiment, described bulge 200 is sacculus, on described sacculus, have perforate, the right-hand member 120 of described catheter 100 stretches in the perforate of described sacculus, implant is slowly delivered to described sacculus inside via described catheter 100, sacculus is slowly expanded, can reach the object of slow compressing spinal cord.
But this utility model does not limit for the shape of bulge 200.
In the specific implementation, first on the cervical vertebral body of animal, punch, hole penetrates into canalis spinalis; The sacculus of described catheter 100 right-hand members 120 is inserted in the hole of cervical vertebral body.
In the present embodiment, described catheter 100 is silicone catheter, and described sacculus is also silica gel balloon urinary.
Such benefit is: on the one hand, silica gel proves to have good biocompatibility through clinical application for many years; On the other hand, avoid employing metal material, avoided producing larger artifact in the time carrying out nuclear magnetic resonance (Magnetic Resonance Imaging, MRI) inspection.
In addition, the left end 110 of described catheter 100 is connected with syringe (not marking in figure), and described syringe is used for implant to inject catheter 100, and makes described implant be delivered to described sacculus along catheter 100.Make inflation, can realize the compressing to spinal cord, easy to use, can realize the compressing dynamics of continuous increase to spinal cord, controllability is strong.
In the present embodiment, described catheter 100 adopts 6Fr child catheter, and the left end 110 of catheter 100 has two imports 111 and 112.Described syringe can be connected in import 111 or 112, and this utility model does not limit this.
In the present embodiment, described implant is contrast agent, but the present embodiment is not restricted implant, can also be other tracer in implant described in other embodiment.
Be the structural representation of described fixed part different angles with reference to figure 2 and figure, the top view that Fig. 2 is described fixed part, the side view that Fig. 3 is described fixed part.Described fixed part 300 is sheathed on described catheter 100.Concrete, in the present embodiment, described fixed part 300 is hollow soket head cap screw, and described hollow soket head cap screw is cylinder, and cylindrical sidewall is provided with screw thread 303, offers hexagonal through hole 302 in cylinder.
Described hollow soket head cap screw is sheathed on the right-hand member 120 of described catheter 100, and near described sacculus, to prevent that when the practical operation, the described bulge 200 or the catheter 100 that are installed on cervical vertebral body occur loosening.
In addition, the hollow soket head cap screw described in the present embodiment also has following benefit: described hollow soket head cap screw, without nut, is being inserted other position or the tissue that after cervical vertebra, are not easy to have influence on cervical vertebra; Screw thread 303 is for helping described hollow soket head cap screw to be fixed on cervical vertebra, in addition, hollow soket head cap screw can directly directly be sheathed on described catheter 100 by described hexagonal through hole 302, thereby fixes with described catheter 100, simple and reliable for structure.
Practical operation by described for hollow soket head cap screw is while inserting cervical vertebral body, the leading edge of hollow soket head cap screw is flushed with the rear wall of vertebral body.
In addition, described fixed part 300 tops also comprise groove 301, in concrete operations, screwdriver can be snapped in groove 301, thereby described fixed part 300 be inserted to the vertebral body of cervical vertebra.
Further, described hollow soket head cap screw is medical nylon screw, and this screw can, in ensureing certain structural strength, increase and biocompatibility.
Although this utility model discloses as above, this utility model is not defined in this.Any those skilled in the art, not departing from spirit and scope of the present utility model, all can make various changes or modifications, and therefore protection domain of the present utility model should be as the criterion with claim limited range.
Claims (9)
1. a spinal compression device, is characterized in that, comprising:
Catheter, for delivery of implant;
Bulge, for oppressing spinal cord; Described bulge is located at one end of described catheter, bulge inside
Be communicated with described catheter;
Fixed part, for being fixed on cervical vertebra by described catheter and bulge.
2. spinal compression device as claimed in claim 1, is characterized in that, described bulge is sacculus, and described sacculus is communicated with described catheter.
3. spinal compression device as claimed in claim 1 or 2, is characterized in that, described catheter is silicone catheter, and described bulge is silica gel bulge.
4. spinal compression device as claimed in claim 1, is characterized in that, described fixed part is sheathed on described catheter.
5. spinal compression device as claimed in claim 4, is characterized in that, described fixed part is hollow soket head cap screw.
6. spinal compression device as claimed in claim 5, is characterized in that, described hollow soket head cap screw is medical nylon screw.
7. spinal compression device as claimed in claim 5, is characterized in that, described hollow soket head cap screw is cylinder, and described cylindrical sidewall is provided with screw thread, offers hexagonal hole in cylinder.
8. spinal compression device as claimed in claim 1, is characterized in that, described implant is contrast agent.
9. spinal compression device as claimed in claim 1, is characterized in that, the other end of described catheter is connected with syringe, for described implant is injected to catheter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055875.7U CN203693818U (en) | 2014-01-28 | 2014-01-28 | Spinal cord compression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055875.7U CN203693818U (en) | 2014-01-28 | 2014-01-28 | Spinal cord compression device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203693818U true CN203693818U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420055875.7U Expired - Fee Related CN203693818U (en) | 2014-01-28 | 2014-01-28 | Spinal cord compression device |
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| Country | Link |
|---|---|
| CN (1) | CN203693818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192034A (en) * | 2018-10-26 | 2019-01-11 | 刘林 | A kind of controllable spinal cord injury model device and making and use method |
-
2014
- 2014-01-28 CN CN201420055875.7U patent/CN203693818U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192034A (en) * | 2018-10-26 | 2019-01-11 | 刘林 | A kind of controllable spinal cord injury model device and making and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140709 Termination date: 20150128 |
|
| EXPY | Termination of patent right or utility model |