CN204410955U - Pre-filled device in bone in a kind of kyphoplasty operation - Google Patents
Pre-filled device in bone in a kind of kyphoplasty operation Download PDFInfo
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- CN204410955U CN204410955U CN201520037380.6U CN201520037380U CN204410955U CN 204410955 U CN204410955 U CN 204410955U CN 201520037380 U CN201520037380 U CN 201520037380U CN 204410955 U CN204410955 U CN 204410955U
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Abstract
Pre-filled device in bone in a kind of kyphoplasty operation, this utility model comprises for pre-filled sponge particles and the plunger mechanism that pushed by sponge particles; Wherein, sponge particles adopts medical III class sponge, the even ball-type of this sponge particles diametrically 4.0-5.0 ㎜ under not compressive state; Plunger mechanism comprises a working column and the push rod of a plug in working column, this working column Nei Kong Zhi Jing≤2.5 ㎜≤3 ㎜; By by fill in working column be in compressive state sponge particles adopt push rod push vertebral body inner balloon set up work space in, make sponge particles in this space without external pressure, revert to original volume.This utility model can reach in injection bone cement process and absorb bone cement excessive moisture and the object slowing down bone cement flow velocity, thus reduces the seepage probability of bone cement, increases operation safety.
Description
Technical field
This utility model relates to the operation of pedicle of vertebral arch approach Vertebral body compress ional fracture, mainly solve because the mobility of bone cement and diffusibility bring the contradiction between operation safety, post surgery stabilization in art, a kind of pre-filled granule of one slowing down bone cement flow velocity of proposition.Be applicable to vertebral column minimally invasive technical field, be particularly useful for lumbar-thoracic spine osteoporosis subside type fracture recovery.
Background technology
Lumbar vertebra compression fracture is the illness that spinal surgery is common clinically, along with the theory of modern spinal surgery develops, increasing needs of patients is treated surgically, structure and the function of postoperative patients's spinal column are recovered, but always have some patients owing to highly losing after the reduction of the fracture, the complication such as soleplate subsides, the pain of postoperative often residual lower back, makes troubles to the Working Life of patient.How to improve the curative effect after lumbar vertebra compression fracture, reduce sequela and become one of current spinal surgeons facing challenges; Simultaneously, along with the increase of proportion of aged population and the change of people life style, Osteoporotic Vertebral Compression Fractures (osteoporotic vertebral compression fractures, OVCF) patient also increases year by year, and compression fracture of vertabral body is medical problem common in world wide with having an intense pain.
The traditional Therapeutic Method of Osteoporotic Vertebral Compression Fractures comprises lies up, applies analgesic drug product and treatment primary disease etc.But lie up and can increase the weight of bone loss, muscle rigidity and local pain, the treatment onset of primary disease is slower simultaneously, pain is difficult to alleviate at short notice makes patients ' life quality decline, and this kind of gerontal patient is difficult to bear the very large spinal operation of damage, therefore there is the extensive concern being subject to spinal surgery doctor immediately in kyphoplasty operation one.
Kyphoplasty operation (Vertebroplasty) is used at first describing and is directly implanted in vertebral body by coagulability material bone cement, strengthens vertebral body biomechanical strength, the object of the lumbar and back pain that prevents from subsiding, alleviate to reach.1987, neuroradiologist Galibert and Deramond of France first reported the C2 vertebral body spongy body racemose hemangioma of the routine long pain of convex plastic operation (percutaneous vertebroplasty, PVP) successful treatment 1 after application percutaneous vertebral body.After this, this technology promptly becomes one of system of selection of the treatment vertebral compression fracture relevant with osteoporosis.
1994, the development and designs such as U.S. Reiley go out a kind of expansiveness sacculus, percutaneous puncture inserts vertebral body, vertebral height is recovered by balloon expandable, correct kyphosis deformity, therefore this technology is called as balloon kyphoplasty (kyphoplasty), and obtained in 1998 U.S. FDA approval be applied to clinical.Balloon kyphoplasty is actually a kind of variant of kyphoplasty operation, is the development of kyphoplasty operation.In recent years, scholars start the research carrying out kyphoplasty operation and balloon kyphoplasty treatment Osteoporotic vertebral fracture and traumatic lumbar vertebra compression fracture, actively expand the clinical application range of this technology.Convex plastic operation and balloon kyphoplasty energy rapid pain relief and early functional exercise after percutaneous vertebral body, make surgical intervention local osteoporosis become possibility, and provide time and chance for follow-up medicine etiological treatment osteoporosis.Have a large amount of bibliographical informations both at home and abroad, to kyphoplasty operation with rear convex plasty curative effect make an affirmation.
The mode of most operation for thoracolumbar fractures treatment is that way of escape closed reduction pedicle nail bar system is fixed, this modus operandi wound is little, reset is satisfied, fixed, it is comparatively safe to operate, and trans-pedicle spinal fixation technique is still considered to one of desirable method of lumbar vertebra compression fracture so far.But posterior approach, while vertebra vertebral height is hindered in recovery, fails to make the bone trabecula of compression failure to revert to original trabecular bone structure, so that in vertebral body, produce " eggshell sample (Eggshell) " change., often there is Cartilaginous end-plate rupture in especially Burst Fracture, intervertebral disc and cracked soleplate are clamp-oned in vertebral body, makes front center pillar lose structural integrity.Pedicle injects spongy bone in vertebral body, is once once promoted, but Knop etc. show with some researchs of Alanay etc., and this method can not rebuild vertebral body strength and stability, can not reduce the incidence rate of Unstable internal fixation and Loss of correction.
In operation, the filling of bone cement is key one step of operation success or failure, and main problems faced is clinically at present: in order to reach the object that bone cement evenly distributes in bone, often wish the diffusion that it can be good; But diffusion velocity very easily causes the seepage of bone cement too soon, cause the immediate symptoms such as the acute pulmonary embolism of patient, pressing spine nerve.
The states of matter situation that bone cement injects for this reason is exactly the key node of art, and bone cement powder and fusion agent are mainly rule of thumb reconciled into " hot candied shape " and reinject in vertebral body by current doctor.And this kind of method too relies on clinical experience, " hot candied shape " is one and compares the states of matter index being difficult to quantize, depend on the perception of clinician to states of matter, if the incorrect bone cement that likely causes of perception crosses sticky or excessively rare situation, bone cement is crossed to be stained with to cause and is injected uneven situation, crosses rare, likely causes bone cement seepage to cause the neural equivalent risk of acute pulmonary embolism, pressing spine.
This utility model is intended adopting medical III class sponge to make a kind of filler particles, carried out pre-filled inject bone cement in art before, the hydrophilic good according to sponge, it can play the effect absorbing excessive moisture in bone cement, slow down bone cement flow velocity, and then reaches the risk reducing bone cement seepage.
Utility model content
The object of this utility model improves for bone cement injection process safety in pyramid plastic operation and proposes: the hydrophilic utilizing medical III class sponge, the pre-filled sponge particles of the one designed.
The specific embodiments of this utility model is:
Pre-filled device in bone in a kind of kyphoplasty operation, this utility model is characterised in that: comprise for pre-filled sponge particles and the plunger mechanism that pushed by sponge particles; Wherein, sponge particles adopts medical III class sponge, the even ball-type of this sponge particles diametrically 4.0-5 ㎜ under not compressive state; Plunger mechanism comprises a working column and the push rod of a plug in working column, this working column Nei Kong Zhi Jing≤2.5 ㎜≤3 ㎜; By by fill in working column be in compressive state sponge particles adopt push rod push vertebral body inner balloon set up work space in, make sponge particles in this space without external pressure, revert to original volume.
The sponge particles that this utility model adopts meet nontoxic, can get involved and requirement in long-term implant into body; Good hydrophilic should be had simultaneously, can reach in injection bone cement process and absorb bone cement excessive moisture and the object slowing down bone cement flow velocity, thus the probability of the bone cement seepage reduced.
This utility model sponge particles size must in without external force situation the even ball-type of diametrically 4.0-5.0 ㎜, this structure is conducive to its freely-movable and do not block bone cement and inject in bone; For diameter is not more than the granule of 3 ㎜ simultaneously when adopting Medical forceps to clamp; Being filled in working tube by the granule of clamping makes it be in compressive state, adopts push rod to be pushed vertebral body inside; Push sponge particles quantity to determine according to vertebral body size.
Effect of the present utility model is:
This utility model has the advantage improving pyramid plastic operation safety, runs into the flow velocity that this pre-filled granule can slow down bone cement when bone cement injects, and can absorb moisture unnecessary in bone cement simultaneously, thus reaches the object reducing bone cement seepage.
Accompanying drawing explanation
Accompanying drawing 1: the aspect graph of pre-filled granule under not pressurized and pressured state;
Accompanying drawing 2: pre-filled granule enters vertebral body schematic internal view by surgical work passage.
Detailed description of the invention
As shown in Figure 1 and Figure 2, pre-filled device in bone in the operation of a kind of kyphoplasty, this utility model is characterised in that: comprise for pre-filled sponge particles and the plunger mechanism that pushed by sponge particles; Wherein, sponge particles adopts medical III class sponge, the even ball-type of this sponge particles diametrically 4-4.5 ㎜ under not compressive state; Plunger mechanism comprises a working column and the push rod of a plug in working column, this working column Nei Kong Zhi Jing≤2.5 ㎜≤3 ㎜; By by fill in working column be in compressive state sponge particles adopt push rod push vertebral body inner balloon set up work space in, make sponge particles in this space without external pressure, revert to original volume.
The sponge particles that this utility model adopts should have good hydrophilic simultaneously, can reach absorb bone cement excessive moisture and the object slowing down bone cement flow velocity in injection bone cement process, and the probability of the bone cement seepage reduced.
This utility model sponge particles size must in without external force situation the even ball-type of diametrically 4.0-5.0 ㎜, this structure is conducive to its freely-movable and do not block bone cement and inject in bone; For diameter is not more than the granule of 3 ㎜ simultaneously when adopting Medical forceps to clamp; Being filled in working tube by the granule of clamping makes it be in compressive state, adopts push rod to be pushed vertebral body inside; Push sponge particles quantity to determine according to vertebral body size.
Claims (1)
1. a pre-filled device in bone in kyphoplasty operation, is characterized in that: comprise for pre-filled sponge particles and the plunger mechanism that pushed by sponge particles; Wherein, sponge particles adopts medical III class sponge, the even ball-type of this sponge particles diametrically 4.0-5.0 ㎜ under not compressive state; Plunger mechanism comprises a working column and the push rod of a plug in working column, this working column Nei Kong Zhi Jing≤2.5 ㎜≤3 ㎜; By by fill in working column be in compressive state sponge particles adopt push rod push vertebral body inner balloon set up work space in, make sponge particles in this space without external pressure, revert to original volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520037380.6U CN204410955U (en) | 2015-01-20 | 2015-01-20 | Pre-filled device in bone in a kind of kyphoplasty operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520037380.6U CN204410955U (en) | 2015-01-20 | 2015-01-20 | Pre-filled device in bone in a kind of kyphoplasty operation |
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| Publication Number | Publication Date |
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| CN204410955U true CN204410955U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520037380.6U Expired - Fee Related CN204410955U (en) | 2015-01-20 | 2015-01-20 | Pre-filled device in bone in a kind of kyphoplasty operation |
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| CN (1) | CN204410955U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644257A (en) * | 2015-01-20 | 2015-05-27 | 昆明医科大学第一附属医院 | Vertebroplasty bone prefilling device |
| CN110234287A (en) * | 2017-01-30 | 2019-09-13 | 喜乐医疗器材股份有限公司 | Granule materials transportation system and method |
-
2015
- 2015-01-20 CN CN201520037380.6U patent/CN204410955U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644257A (en) * | 2015-01-20 | 2015-05-27 | 昆明医科大学第一附属医院 | Vertebroplasty bone prefilling device |
| CN110234287A (en) * | 2017-01-30 | 2019-09-13 | 喜乐医疗器材股份有限公司 | Granule materials transportation system and method |
| CN110234287B (en) * | 2017-01-30 | 2022-05-17 | 喜乐医疗器材股份有限公司 | Particulate material conveying apparatus and 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: 20150624 Termination date: 20180120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |