CN104644257A - Vertebroplasty bone prefilling device - Google Patents
Vertebroplasty bone prefilling device Download PDFInfo
- Publication number
- CN104644257A CN104644257A CN201510026944.0A CN201510026944A CN104644257A CN 104644257 A CN104644257 A CN 104644257A CN 201510026944 A CN201510026944 A CN 201510026944A CN 104644257 A CN104644257 A CN 104644257A
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- China
- Prior art keywords
- sponge
- bone cement
- sponge particles
- pushing
- push rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8825—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by syringe details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8833—Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B2017/8844—Means for determining the viscosity of bone cement
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a vertebroplasty bone prefilling device, which comprises sponge particles and a pushing and plugging mechanism, wherein the sponge particles are used for pre-filling, the pushing and plugging mechanism is used for pushing the sponge particles, the sponge particles adopt a medical III type sponge, each sponge particle is in a uniform ball shape with diameter of 4.0-5.0mm under the uncompressed state, the pushing and plugging mechanism comprises a working cannula and a push rod, the push rod is plugged into the working cannula, the diameter of an inner hole of the working cannular is greater than or equal to 2.5mm and is smaller than or equal to 3mm, the push rod is used for pushing the sponge particles which are plugged into the working cannula in the compressed state into a working space established by vertebral internal ball bags, and each sponge particle is restored into the original size under the condition of no pressure in the interior and exterior of the space. The method has the advantages that in the bone cement filling process, the excessive water of the bone cement can be absorbed, the purpose of reducing the flow rate of the bone cement is realized, the leakage possibility of the bone cement is reduced, and the operation safety is improved.
Description
Technical field
The present invention 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 vertebroplasty one.
Vertebroplasty (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 application percutaneous vertbroplasty (percutaneous vertebroplasty, PVP) successful treatment 1.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 vertebroplasty, is the development of vertebroplasty.In recent years, scholars start the research carrying out vertebroplasty and balloon kyphoplasty treatment Osteoporotic vertebral fracture and traumatic lumbar vertebra compression fracture, actively expand the clinical application range of this technology.Percutaneous vertbroplasty and balloon kyphoplasty energy rapid pain relief and early functional exercise, 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 vertebroplasty and 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.
The present invention intends 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.
Summary of the invention
The object of this invention improves for bone cement injection process safety in pyramid plastic operation and proposes: utilize medical
the hydrophilic of class sponge, the pre-filled sponge particles of the one designed.
The specific embodiments of this invention is:
Pre-filled device in bone in a kind of vertebroplasty, the present invention 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 the present invention 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.
Sponge particles size of the present invention 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 invention is:
The present invention 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 a kind of vertebroplasty, the present invention 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 the present invention 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.
Sponge particles size of the present invention 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 vertebroplasty, is characterized in that: comprise for pre-filled sponge particles and the plunger mechanism that pushed by sponge particles; Wherein, sponge particles adopts medical
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 |
|---|---|---|---|
| CN201510026944.0A CN104644257A (en) | 2015-01-20 | 2015-01-20 | Vertebroplasty bone prefilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510026944.0A CN104644257A (en) | 2015-01-20 | 2015-01-20 | Vertebroplasty bone prefilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104644257A true CN104644257A (en) | 2015-05-27 |
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ID=53236254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510026944.0A Pending CN104644257A (en) | 2015-01-20 | 2015-01-20 | Vertebroplasty bone prefilling device |
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| Country | Link |
|---|---|
| CN (1) | CN104644257A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440186A (en) * | 2021-07-19 | 2021-09-28 | 王倩青 | Traction device for assisting single-port laparoscope |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120136448A1 (en) * | 2008-08-29 | 2012-05-31 | Jody L Seifert | Devices and Methods for Treating Bone |
| CN103637842A (en) * | 2013-12-12 | 2014-03-19 | 宁波华科润生物科技有限公司 | Implantation system for bone implants |
| CN103654923A (en) * | 2012-09-19 | 2014-03-26 | 上海微创医疗器械（集团）有限公司 | Support system capable of preventing bone cement leakage and application thereof |
| CN204410955U (en) * | 2015-01-20 | 2015-06-24 | 昆明医科大学第一附属医院 | Pre-filled device in bone in a kind of kyphoplasty operation |
-
2015
- 2015-01-20 CN CN201510026944.0A patent/CN104644257A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120136448A1 (en) * | 2008-08-29 | 2012-05-31 | Jody L Seifert | Devices and Methods for Treating Bone |
| CN103654923A (en) * | 2012-09-19 | 2014-03-26 | 上海微创医疗器械（集团）有限公司 | Support system capable of preventing bone cement leakage and application thereof |
| CN103637842A (en) * | 2013-12-12 | 2014-03-19 | 宁波华科润生物科技有限公司 | Implantation system for bone implants |
| CN204410955U (en) * | 2015-01-20 | 2015-06-24 | 昆明医科大学第一附属医院 | Pre-filled device in bone in a kind of kyphoplasty operation |
Non-Patent Citations (1)
| Title |
|---|
| 杨智贤: "椎体成形术中注射明胶海绵预防骨水泥渗漏的临床观察", 《中国骨与关节损伤杂志》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440186A (en) * | 2021-07-19 | 2021-09-28 | 王倩青 | Traction device for assisting single-port laparoscope |
| CN113440186B (en) * | 2021-07-19 | 2022-07-22 | 王倩青 | Traction device for assisting single-port laparoscope |
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Application publication date: 20150527 |
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| RJ01 | Rejection of invention patent application after publication |