CN204839720U - A sacculus guiding device that is used for protruding plastic operation behind pedicle of vertebral arch approach centrum - Google Patents
A sacculus guiding device that is used for protruding plastic operation behind pedicle of vertebral arch approach centrum Download PDFInfo
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- CN204839720U CN204839720U CN201520587427.6U CN201520587427U CN204839720U CN 204839720 U CN204839720 U CN 204839720U CN 201520587427 U CN201520587427 U CN 201520587427U CN 204839720 U CN204839720 U CN 204839720U
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- sacculus
- sleeve pipe
- inner tube
- guide wire
- pipe
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Abstract
The utility model discloses a sacculus guiding device that is used for protruding plastic operation behind pedicle of vertebral arch approach centrum, it is including the guide silk, the sleeve pipe, the sacculus, the sacculus setting is at the sleeve pipe front end and pass through the hose connection, have the memory alloy section on the guide silk, it sets up in the hose of sleeve pipe and sacculus junction, the sleeve pipe includes inner tube I, the outer tube, guide silk entry, liquid inlet, the outer tube suit is outside inner tube I, guide silk entry sets up and communicates at the sleeve pipe tip and with inner tube I, liquid inlet sets up in sleeve pipe one side and communicates with the outer tube, set up inner tube II in the utricule of sacculus, outer tube and utricule intercommunication, inner tube I and II intercommunications of inner tube, guide silk sets up in inner tube I and inner tube II, utilize memory alloy's characteristic, messenger's guide silk pushes down the condensation diastole in the different temperatures, drives the sacculus and buckles to the offside centrum, makes the sacculus can strut the offside centrum as far as, is wherein establishhing bone cement support space, under the condition that reduces the operation wound, reach the effect that expansion and balanced bone cement supported the space.
Description
Technical field
This utility model relates to a kind of pedicle of vertebral arch approach Vertebral body compress ional fracture operation device, belongs to medical instruments field.
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 (osteoporoticvertebralcompressionfractures, 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 (percutaneousvertebroplasty, 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.
At present in order to avoid sacculus hydraulic spreader is punctured by intracavity gristle and expand its work space, before dilator approach, introduce the way that first Kirschner wire is got involved clinically, but compare to and set up dilator passage through bilateral vertebral pedicle puncture approach, the main difficulty current through one-sided vertebral pedicle puncture is, the inclined angle excessive (reaching 30 °-35 °) of puncture, add the danger puncturing pedicle of vertebral arch inwall, puncture Kirschner wire arrives and reduces the probability of side vertebral body under the guiding of service aisle, wears out the danger of vertebral body front side wall in addition simultaneously.
Current partial clinical doctor adopts the Kirschner wire of bending in advance to set up dilator work space, and then adopt dilator to implement expansion, the effect necessarily reached pleurocentrum can be played, but because the material of present Kirschner wire is comparatively hard, after bending, deformation is less, major part situation can not meet the requirement of vertebral body radian, thus this scheme can not absolute guarantee all can correctly guide sacculus to enter pleurocentrum each time, and the motion of Kirschner wire in bone has uncertainty, easy generation unexpected injury, even if part puncture reaches offside, but due to the impact that penetration depth is inadequate, the diffusion effect of bone cement is also bad, cause the recovery of pleurocentrum undesirable.This bending radian that affects simultaneously being subject to working tube radius can not be too large, the above factors affect surgical effect of one-sided vertebral pedicle puncture.
Existing hydraulic pressure balloon-system due to guide wire angle of bend be difficult to control, can not evenly strut in vertebral body, namely the offside set up Intrapyramidal bone cement diffusion space and approach Intrapyramidal bone cement diffusion space is not of uniform size causes, effectively can not set up bone cement diffusion, supporting and space, even if there is Kirschner wire to establish dilator work space in advance, existing hydraulic pressure balloon-system still can not be expanded along the work space got through in advance smoothly uniformly.
Summary of the invention
This utility model provides a kind of guided by saccule device for the operation of pedicle of vertebral arch approach kyphoplasty, this device can not evenly strut for the hydraulic pressure sacculus existed in the operation of prior art Unipedicular approach sacculus hydraulic dilatation kyphoplasty in vertebral body---the offside namely set up Intrapyramidal bone cement diffusion space and approach Intrapyramidal bone cement diffusion space is not of uniform size causes, do not set up the Intrapyramidal bone cement diffusion space of offside even completely, thus cause discontinuity in Postoperative Bone, recovery good and propose.
This utility model mainly solves in art because the contradiction of bone cement supporting and space in vertebral body between uniformity and operation invasive, the employing memorial alloy proposed builds guide wire, utilize memorial alloy deformation behavior at different temperatures to drive the motion of sacculus in bone cavity, thus reach the effect of expansion and balanced bone cement supporting and space.
The guided by saccule device that this utility model is used for the operation of pedicle of vertebral arch approach kyphoplasty comprises guide wire 1, sleeve pipe 2, sacculus 3, sacculus 3 is arranged on sleeve pipe 2 front end and is connected by flexible pipe 10, with memorial alloy section 9 in guide wire 1, memorial alloy section 9 is arranged on sleeve pipe 2 with in the flexible pipe 10 of sacculus 3 junction, sleeve pipe 2 comprises interior pipe I 4, outer tube 5, guide wire entrance 6, liquid inlet 7, outer tube 5 is sleeved on outside interior pipe I 4, guide wire entrance 6 arranges sleeve pipe 2 end and is communicated with interior pipe I 4, liquid inlet 7 is arranged on sleeve pipe 2 side and is communicated with outer tube 5, in the utricule 12 of sacculus 3, interior pipe II 11 is set, outer tube 5 is communicated with utricule 12 by flexible pipe 10, interior pipe I 4 is communicated with interior pipe II 11 and compact siro spinning technology, guide wire 1 is arranged in interior pipe I 4 and interior pipe II 11.
Described memorial alloy section 9 is Nitinol section, its for inclined plane angle be the sphenoid shape Nitinol section of 50-60 °.
With bearing mark 8 in described guide wire 1, its direction of arrow and guide wire deformation direction 37 DEG C time is consistent, indicates the bending direction of the memorial alloy section of guide wire 1, in order to avoid sacculus direction of motion mistake in art.
Described flexible pipe 10 length is 2-3mm.
Described hose materials is consistent with sacculus material.
The memorial alloy section 9 of guide wire 1 can expand under condition of different temperatures, and wherein sphenoid bottom surface expanding volume is larger, and sacculus 3 can be guided along set direction to move (the dilator work space that such as Kirschner wire is set up in advance).
In this utility model, the Nitinol of memorial alloy section 9 is austenite 0 DEG C time is compressive state mutually, at 37 DEG C for martensitic phase is diastole state; And this guide wire 1 linearly, enters in vertebral body so that guide wire promotes sacculus through working tube 0 DEG C time.
First guide wire 1 is immersed in mixture of ice and water in use, memorial alloy section is compressed, guide wire is made to keep straight line before entering sleeve pipe 2, guide wire 1 enters in sleeve pipe 2 and sacculus 3 by guide wire entrance 6, after this guided by saccule device enters vertebral body, utilize body temperature that the memorial alloy section of guide wire 1 is heated to 37 DEG C, memorial alloy section is diastole state, and bend, the common metal silk of memorial alloy section front end is driven to bend, drive sacculus to bend to pleurocentrum simultaneously, make sacculus can reach an angle that can strut pleurocentrum as far as possible, then liquid is injected by liquid inlet 7, liquid enters balloon expandable sacculus, set up bone cement supporting and space.
Advantage of the present utility model and technique effect are:
This device has the advantage improving Unipedicular approach kyphoplasty operation safety, the design of memorial alloy section can drive sacculus to bend according to predetermined direction, namely bend to pleurocentrum direction, effectively set up bone cement diffusion, supporting and space; This device improves operation degree of accuracy, decreases patient's operating time, avoids the unexpected injury to patient; This apparatus design is reasonable, structure simple, is suitable for suitability for industrialized production and clinical applying.
Accompanying drawing explanation
Fig. 1 is this utility model apparatus structure schematic diagram;
Fig. 2 is the structural representation of this utility model sleeve pipe and sacculus;
Fig. 3 is this utility model sleeve pipe broken section structural representation;
Fig. 4 is this utility model guide wire structural representation;
Fig. 5 is the structural representation that this utility model guides silk ribbon direction signs;
Fig. 6 is the structure for amplifying schematic diagram of memorial alloy section in this utility model;
Fig. 7 is the structural representation of this utility model sacculus;
Fig. 8 is the result of use schematic diagram that this utility model device (B figure) compares with conventional apparatus (A schemes);
In figure: 1-guide wire; 2-sleeve pipe; 3-sacculus; Pipe I in 4-; 5-outer tube; 6-guide wire entrance; 7-liquid inlet; 8-bearing mark; 9-memorial alloy section; 10-flexible pipe; Pipe II in 11-; 12-utricule.
Detailed description of the invention
Below by drawings and Examples, this utility model is described in further detail, but protection domain of the present utility model is not limited to described content.
Embodiment 1: as Fig. 1, 2, 3, 4, 6, shown in 7, this guided by saccule device being used for the operation of pedicle of vertebral arch approach kyphoplasty comprises guide wire 1, sleeve pipe 2, sacculus 3, sacculus 3 is arranged on sleeve pipe 2 front end and is connected by flexible pipe 10, with memorial alloy section 9 in guide wire 1, memorial alloy section 9 is arranged on sleeve pipe 2 with in the flexible pipe 10 of sacculus 3 junction, sleeve pipe 2 comprises interior pipe I 4, outer tube 5, guide wire entrance 6, liquid inlet 7, outer tube 5 is sleeved on outside interior pipe I 4, guide wire entrance 6 arranges sleeve pipe 2 end and is communicated with interior pipe I 4, liquid inlet 7 is arranged on sleeve pipe 2 side and is communicated with outer tube 5, in the utricule 12 of sacculus 3, interior pipe II 11 is set, outer tube 5 is communicated with utricule 12 by flexible pipe 10, interior pipe I 4 is communicated with interior pipe II 11 and compact siro spinning technology, guide wire 1 is arranged in interior pipe I 4 and interior pipe II 11, wherein memorial alloy section 9 is Nitinol section, its for inclined plane angle be the sphenoid shape Nitinol section of 50 °, other metal segments diameters of its diameter and guide wire 1 are consistent is 1mm, and length is consistent with hose length is 3mm, and flexible pipe 10 length is 3mm.
First guide wire 1 is immersed in mixture of ice and water in use, memorial alloy section is compressed, guide wire 1 is made to keep straight line before entering sleeve pipe, guide wire 1 to enter in sleeve pipe 2 in pipe I 4 and sacculus 3 in pipe II 11 by guide wire entrance 6, after this guided by saccule device enters vertebral body, utilize body temperature that the memorial alloy section 9 of guide wire 1 is heated to 37 DEG C, memorial alloy section 9 is in diastole state, and bend, the common metal silk of memorial alloy section front end is driven to bend, drive the utricule 12 of sacculus to bend to pleurocentrum simultaneously, make sacculus can reach an angle that can strut pleurocentrum as far as possible, then inject liquid-liquid by liquid inlet 7 and enter utricule 12 dilating sacculus, set up bone cement supporting and space (Fig. 8).
Embodiment 2: the present embodiment apparatus structure is with embodiment 1, and difference is that it also comprises bearing mark 8, indicates the bending direction of the memorial alloy section 9 of guide wire 1, in order to avoid sacculus direction of motion mistake in art; Flexible pipe 10 length is 2mm; Memorial alloy section 9 is Nitinol section, its for inclined plane angle be the sphenoid shape Nitinol section of 60 °, other metal segments diameters of its diameter and guide wire 1 are consistent is 1mm, length is consistent with hose length is 2mm, interior pipe II 11 and interior pipe I 4 junction of flexible pipe 10 correspondence are also the interior pipe of soft material matter, bending (Fig. 5) of guide wire of being more convenient for.
Claims (4)
1. the guided by saccule device for the operation of pedicle of vertebral arch approach kyphoplasty, it is characterized in that: comprise guide wire (1), sleeve pipe (2), sacculus (3), sacculus (3) is arranged on sleeve pipe (2) front end and is connected by flexible pipe (10), with memorial alloy section (9) in guide wire (1), memorial alloy section (9) is arranged on sleeve pipe (2) with in the flexible pipe (10) of sacculus (3) junction, sleeve pipe (2) comprises interior pipe I (4), outer tube (5), guide wire entrance (6), liquid inlet (7), outer tube (5) is sleeved on interior pipe I (4) outward, guide wire entrance (6) is arranged on sleeve pipe (2) end and is communicated with interior pipe I (4), liquid inlet (7) is arranged on sleeve pipe (2) side and is communicated with outer tube (5), in the utricule (12) of sacculus (3), interior pipe II (11) is set, outer tube (5) is communicated with utricule (12) by flexible pipe (10), interior pipe I (4) is communicated with interior pipe II (11) and compact siro spinning technology, guide wire (1) is arranged in interior pipe I (4) and interior pipe II (11).
2., according to claim 1 for the guided by saccule device of pedicle of vertebral arch approach kyphoplasty operation, it is characterized in that: memorial alloy section (9) is sphenoid shape Nitinol section.
3. according to claim 1 or 2 for pedicle of vertebral arch approach kyphoplasty operation guided by saccule device, it is characterized in that: with bearing mark (8) in guide wire (1).
4., according to claim 3 for the guided by saccule device of pedicle of vertebral arch approach kyphoplasty operation, it is characterized in that: flexible pipe (10) length is 2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587427.6U CN204839720U (en) | 2015-08-07 | 2015-08-07 | A sacculus guiding device that is used for protruding plastic operation behind pedicle of vertebral arch approach centrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587427.6U CN204839720U (en) | 2015-08-07 | 2015-08-07 | A sacculus guiding device that is used for protruding plastic operation behind pedicle of vertebral arch approach centrum |
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| Publication Number | Publication Date |
|---|---|
| CN204839720U true CN204839720U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520587427.6U Withdrawn - After Issue CN204839720U (en) | 2015-08-07 | 2015-08-07 | A sacculus guiding device that is used for protruding plastic operation behind pedicle of vertebral arch approach centrum |
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| Country | Link |
|---|---|
| CN (1) | CN204839720U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105167836A (en) * | 2015-08-07 | 2015-12-23 | 昆明医科大学第一附属医院 | Balloon guide apparatus for pedicle approach kyphosis vertebroplasty operation |
| CN109745114A (en) * | 2018-11-20 | 2019-05-14 | 宁波华科润生物科技有限公司 | A kind of multi-functional vertebral plasty instrument |
| CN111616779A (en) * | 2020-06-08 | 2020-09-04 | 刘阳 | Bidirectional leading-in blood vessel puncture device |
-
2015
- 2015-08-07 CN CN201520587427.6U patent/CN204839720U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105167836A (en) * | 2015-08-07 | 2015-12-23 | 昆明医科大学第一附属医院 | Balloon guide apparatus for pedicle approach kyphosis vertebroplasty operation |
| CN105167836B (en) * | 2015-08-07 | 2017-12-08 | 昆明医科大学第一附属医院 | A kind of guided by saccule device for the operation of pedicle of vertebral arch approach kyphoplasty |
| CN109745114A (en) * | 2018-11-20 | 2019-05-14 | 宁波华科润生物科技有限公司 | A kind of multi-functional vertebral plasty instrument |
| WO2020103711A1 (en) * | 2018-11-20 | 2020-05-28 | 宁波华科润生物科技有限公司 | Multifunctional vertebroplasty instrument |
| CN111616779A (en) * | 2020-06-08 | 2020-09-04 | 刘阳 | Bidirectional leading-in blood vessel puncture device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20171208 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20171208 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |