CN109124753A - A kind of pyramid plastic operation guided by saccule component - Google Patents
A kind of pyramid plastic operation guided by saccule component Download PDFInfo
- Publication number
- CN109124753A CN109124753A CN201811001349.1A CN201811001349A CN109124753A CN 109124753 A CN109124753 A CN 109124753A CN 201811001349 A CN201811001349 A CN 201811001349A CN 109124753 A CN109124753 A CN 109124753A
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- China
- Prior art keywords
- air bag
- conduit
- guide wire
- inflation
- saccule
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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
- A61B17/885—Tools for expanding or compacting bones or discs or cavities therein
- A61B17/8852—Tools for expanding or compacting bones or discs or cavities therein capable of being assembled or enlarged, or changing shape, inside the bone or disc
- A61B17/8855—Tools for expanding or compacting bones or discs or cavities therein capable of being assembled or enlarged, or changing shape, inside the bone or disc inflatable, e.g. kyphoplasty balloons
-
- 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
- A61B17/8897—Guide wires or guide pins
-
- 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
- A61B17/90—Guides therefor
Abstract
A kind of pyramid plastic operation guided by saccule component, including a conduit fix inner tube in conduit, it further include guide wire, the insertion end of guide wire is inserted into the blind hole of inner tube insertion end, and the guide wire includes lead segment and supporting section, and lead segment includes memory metal sheet and heating element；The first air bag after an inflation for taper is fixed at the insertion end of conduit, first air bag and conduit are coaxial, conduit fixes the second air bag and two third air bags far from the side of its insertion end in the first air bag, conduit is connected to air inlet, conduit is connected to by venthole with the second air bag and third air bag, a hose is fixed in conduit, hose one end is connected to the first air bag, and the other end stretches out conduit and is connected to a glueballs.The component can greatly improve the convenience of operation, reduce operating difficulty, improve success rate, reduce risk.
Description
Technical field
The present invention relates to a kind of orthopaedics medical instruments, and in particular to a kind of vertebral plasty or the sacculus of rear convex plastic operation
Guide device.
Background technique
In vertebral plasty or rear convex plasty operation, the filling of bone cement is the key that operation one step of success or failure, is existed at present
Clinically main problems faced is: in order to achieve the purpose that bone cement is uniformly distributed in bone, it is often desired to which it can be good
Diffusion；But diffusion velocity easily causes very much the leakage of bone cement fastly, causes the acute pulmonary embolism of patient, oppresses ridge into canalis spinalis
The postoperative complications such as column nerve.
Currently in order to avoiding sacculus hydraulic spreader from puncturing and expand its working space by intracavitary gristle, in expander approach
Before, the method for first Kirschner wire intervention is clinically introduced, but logical compared to expander is established through bilateral vertebral pedicle puncture approach
Road is that the inclined angle of puncture is excessive (reaching 30 ° -35 °) through the current main difficulty of unilateral vertebral pedicle puncture, increases
The danger of pedicle of vertebral arch inner wall is punctured, puncture Kirschner wire is reached under the guidance of service aisle and is reduced to a possibility that side centrum,
The danger of centrum front side wall is also worn out simultaneously.
Partial clinical doctor establishes expander working space using the Kirschner wire of preparatory bending at present, then again using expansion
Device implements expansion, can play and centainly achieve the effect that pleurocentrum, but since the material of present Kirschner wire is more hard, folding
Deformation is smaller after curved, and most of situation is not able to satisfy the requirement of centrum radian, so that this scheme is unable to absolute guarantee each time
Sacculus can be correctly guided to enter to pleurocentrum, and movement of the Kirschner wire in bone has uncertainty, is also easy to produce unexpected injury,
Even if part, which punctures, has reached opposite side, but due to entering the inadequate influence of depth, the diffusion effect of bone cement is simultaneously bad, causes
It is undesirable to the recovery of pleurocentrum.Being influenced the bending radian by working tube radius simultaneously cannot be too big, and factors above is all
Affect the surgical effect of unilateral vertebral pedicle puncture.
Existing hydraulic balloon-system cannot be strutted uniformly in centrum, i.e., since guide wire bending angle is difficult to control
The Intrapyramidal bone cement diffusion space in the opposite side of foundation and the Intrapyramidal bone cement diffusion space of approach are not of uniform size, Bu Nengyou
Effect establishes bone cement diffusion, supporting and space, even if there is Kirschner wire to pre-establish expander working space, existing hydraulic ball
Bag apparatus still smoothly cannot uniformly be expanded along the working space got through in advance.
Chinese patent (perform the operation for pedicle of vertebral arch approach kyphoplasty by CN201510477709.5 one kind in the prior art
Guided by saccule device) in the inserting paragraph of guide wire be set as memory metal, return recovery at a certain temperature using memory metal
Camber is arranged in initial configuration by the feature of initial configuration, using its deformation at a set temperature, drives air bag in crack
It is mobile, air bag is set symmetrically substantially along the longitudinally asymmetric face of centrum.This design has one in practical applications
A critical problem, memory metal restore the power of initial configuration, are not enough to strut in centrum crack.Both although memory metal had
Restore initial configuration volume trend, but due to the inhibition of the protruding parts in the effect of centrum pressure or crack, often not
Enough spaces can be left to devices such as catheter air bags to be allowed to memory metal deformation, crack can will inflated airbag not yet
It blocks, it is hindered to become the shape of Theoretical Design, into the position of Theoretical Design.
Further, since the deformation temperature of memory metal selection is 37 degree, i.e., memory metal shortly can after entering human body
Deformation occurs, this design no patient's sufficient operating time, his speed of deformation can not be cooperated to adjust the angle of guide wire
The parameters such as degree.Increase the difficulty of operation.
The prior art (CN200680007237.6 improve enter vertebral body to carry out balloon kyphoplasty, centrum
The system and method that plasty, vertebrae tissue inspection or screw are placed in) it discloses a kind of using bracing wire drive pipe bending, and
Into the device in centrum crack.This device, firstly, such as Fig. 1 makes its bending, this to set using bracing wire pull lever or pipeline
Meter, is limited to the diameter of operating space, and bending angle is very limited, and formation filling spatial symmetry is bad, secondly, apparatus structure
Complexity is difficult to control, and bracing wire pulling amount reality is very small, and usually in millimeter magnitude, patient will manually control the pulling of bracing wire
Amount, actually increases the difficulty of operation；Again, how the pressure that this device equally also faces on crack arranges, thus
The problem of guidance air bag enters crack, this device is compared to a upper technical solution, although can be inserted the catheter into manual pressure
Air bag is inserted into crack by force, and this mode will control front end bending angle, i.e. bracing wire pulling amount, want simultaneously for patient
Control will be inserted into required power, and consider the problems of the cooperation between both, since operation is in no naked eyes visual field
In the case where carry out, observed after needing to operate to certain phase using transmission of radiation, undoubtedly for patient difficulty right and wrong
It is often high, it needs comparable experience that could smoothly complete to perform the operation relatively, otherwise will ceaselessly carry out ray and take pictures to detect work
Make state, while increasing operating difficulty, increases amount of radiation.
This device seeks to manual insertion device there is also a crucial problem, then front end will have it is enough
Intensity, to strut crack.But inserting paragraph has delineated the slot for pipe or bar bending, this design is inserted into when being inserted into crack
The obstruction that section encounters vertebra can be naturally bent, and front end has no idea effectively to be guided.It is real if being inserted into conduit
It is to be carried out in the curved situation of inserting paragraph on border, uses tube wall rather than its front end insertion crack, exert a force in patient
When inserting paragraph tube wall can be mobile to crack simultaneously, make to split it is too fast strut, be easy to happen secondary fracture.
Summary of the invention
The purpose of the present invention is to provide a kind of guided by saccule components of the pyramid plastic operation convenient for operation.
To achieve the goals above, the present invention includes a conduit, fixes inner tube in conduit, further includes guide wire, special
Sign is that the insertion end of guide wire is inserted into the blind hole of inner tube insertion end, and the guide wire includes lead segment and supporting section,
Lead segment includes memory metal sheet and heating element, and heating element reaches deformation temperature, deformation for heating memory metal
Temperature is higher than 42 degree, is lower than 60 degree；
The first air bag after an inflation for taper is fixed at the insertion end of conduit, the first air bag and conduit are coaxial, the vertex of a cone
It is directed toward the insertion end of conduit, conduit fixes the second air bag and two third air bags far from the side of its insertion end in the first air bag,
Third air bag is located at the two sides of the second air bag, and is equidistantly spaced with the second air bag, the second air bag and the inflation of third air bag
After be cylinder；
Conduit is connected to air inlet, and conduit is connected to by venthole with the second air bag and third air bag, fixed in conduit
One hose, hose one end are connected to the first air bag, and the other end stretches out conduit and is connected to a glueballs, inflation in glueballs；
Lead powder end in spray metal on the inner wall of second air bag and third air bag.
Preferably, the maximum gauge after the inflation of the first air bag is greater than the diameter of conduit, less than straight after the inflation of the second air bag
Diameter.
Further, guide wire is inserted into inner tube by being fixed on supravasal guide wire, and the vacant end of guide wire is removable
That unloads fixes an end cap, and the vacant end of the lead segment of guide wire indicates that one end of silk is fixedly connected with one, and fixed point is located at
The back side of the bending direction of memory metal sheet will pull instruction silk when being bent memory metal sheet；
Indicate that the other end of silk stretches out end cap, instruction silk, which closes on, is arranged cue mark on one end of end cap；
The hole passed through for instruction silk and guide wire is provided on end cap, the shape limitation instruction silk in hole is pasted with guide wire always
It closes.
Further, it at conduit and inner tube position corresponding with memory metal sheet, delineates and multiple is set along conduit axially spaced-apart
The groove set.
Preferably, the diameter after the inflation of third air bag is less than the diameter after the inflation of the second air bag.
Further, the aperture of the second air bag and third air bag outer cladding metal mesh, metal mesh is not more than 0.5mm；Metal
Thickness of net is not more than 0.5mm.
Further, metal mesh closes on the fixed multiple memory wires in side of conduit, the initial configuration of memory wire
It is arranged to vertical with metal mesh；When metal mesh is coated on unaerated air bag, memory wire bends the surface for being attached to air bag；Note
The deformation temperature for recalling wire is within the scope of 35-37 degree.
The beneficial effects of the present invention are:
1, operation is easier, and in the guidance positioning operation to inserting paragraph, substantially accurate operation only has insertion depth
And angle, entire bootup process can be completed by controlling glueballs, operating difficulty reduces, and success rate greatly improves.
2, the setting of metal mesh can effectively avoid the leakage of bone cement, improve operation safety；It simultaneously can be to be shown in art
Shadow uses diodone without additionally adding, avoids iodine allergy risk.
Detailed description of the invention
Fig. 1 prior-art illustration.
Fig. 2 is schematic diagram of the present invention.
Fig. 3 is conduit insertion centrum schematic diagram.
Fig. 4 be conduit inserting paragraph completely into centrum when status diagram.
Fig. 5 is guide-tube structure schematic diagram.
Fig. 6 is Fig. 5 partial enlarged view.
Fig. 7 conduit Longitudinal cross section schematic.
Fig. 8 guide wire shows structural schematic diagram.
Fig. 9 is instruction silk operation schematic diagram.
Figure 10 is unaerated air bag cladding metal mesh schematic diagram.
Figure 11 is metal mesh status diagram after air bag inflation.
Figure 12 is that metal mesh struts rear status diagram.
Figure 13 is status diagram of the metal mesh with memory wire and when not strutting.
Figure 14 is the status diagram filled after bone cement.
Figure 15 conduit and inner tube have groove structure schematic diagram.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawing.
As shown in Figure 1 to 9, a kind of pyramid plastic operation guided by saccule component, including a conduit 10, it is solid in conduit 10
Determine inner tube 20, further include guide wire 30, the insertion end of guide wire 30 is inserted into the blind hole of 20 insertion end of inner tube, the guidance
Silk 30 includes lead segment 301 and supporting section 302, and lead segment 301 includes memory metal sheet 31 and heating element 32, heating element 32
For heating memory metal, deformation temperature is reached, deformation temperature is higher than 42 degree, is lower than 60 degree.This temperature is higher than people
The limiting temperature of body, but cannot be excessively high, it is excessively high that the components such as tube wall can be had an impact.The range of choice of memory metal is very
Extensively, material is not limited.But its shape, it is still further preferred that sheet, when bending, is not easy to bend to its width direction, from
And it is consistent after capable of guaranteeing deformation as far as possible with design shape.
The first air bag 40 after an inflation for taper is fixed at the insertion end of conduit 10, the first air bag 40 and conduit 10 are same
Axis, the vertex of a cone be directed toward conduit 10 insertion end, conduit 10 the first air bag 40 far from the side of its insertion end fix the second air bag 50,
With two third air bags 60, third air bag 60 is located at the two sides of the second air bag 50, and is equidistantly spaced with the second air bag 50,
Second air bag 50 and third air bag 60 are cylinder after inflating.
Conduit 10 is connected to air inlet 71, and conduit 10 is connected to by venthole with the second air bag 50 and third air bag 60,
A hose 13 is fixed in conduit 10,13 one end of hose is connected to the first air bag 40, and the other end stretches out conduit 10 and a glueballs
15 connections, the interior inflation of glueballs 15.
Spray metal lead powder end, the development for air bag on the inner wall of second air bag 50 and third air bag 60.In order to improve
The effect air bag of development can have two layers of airbag wall, avoid the occurrence of the gutter of no lead powder covering after air bag inflation in this way
Point.
When conduit is inserted into centrum by service aisle, opens heating element and memory metal sheet 31 is heated, quickly
Reach deformation temperature, this time is somewhat different according to the selection of heating element, but can control and can add in 10 seconds substantially
Heat is completed.Heating element can be heating wire, external power supply heating be connected by conducting wire, using preferably leading when heater strip
Draw section 301 and smear insulating layer 33, or can insulate but also heat-insulated material, such as layer of silica gel.Excess temperature is not high, heat insulation
It is not important.Memory metal sheet 31 has 101 warp tendency of inserting paragraph with conduit after temperature reaches its deformation temperature.
Heating element can be other structures, such as capillary soft tube other than heating wire, is connected to by hose with outside, can be passed through and follow
Ring hot water.Metal film outside even one two, is conducted heat by guide wire, and heating guide wire carrys out heating technique sheet metal 31.
After heating the set time, this time interval can confirm before insertion, that is, heat how long memory metal sheet is opened
Beginning deformation.After determining this time, after the completion of heating, patient squeezes glueballs 15 and inflates to the first air bag 40, the first air bag 40
Maximum gauge after inflation is greater than the diameter of conduit 10, less than the diameter after the inflation of the second air bag 50.Since memory metal has
Deformation tendency, this when, patient squeeze glueballs 15 and can inflate to the first air bag 40, centrum crack is strutted, glue is then unclamped
Ball 15, glueballs draw back the gas in the first air bag 14 under own resilient, and the first air bag 40 is shunk, and centrum crack has been at this time
The gap that enough conduits pass through is strutted, memory metal is bent with conduit 10 under the deformation temperature for keeping memory metal.In this way,
Conduit quickly can be sent to estimating position with diastole glueballs 15 by squeezing several times.Pass through air inlet 71 at this time to the second air bag
50 and third air bag 60 inflate, centrum is symmetrically propped up, the Injection Space of bone cement is formed.Whole operation, it is only necessary to adjust
The depth and guarantee that the bending direction of lead segment 301 is correct that good guide wire 30 is inserted into.For patient, operate simpler
It is clean, it does not need to carry out accurate operation simultaneously, greatly reduces operating difficulty, improve success rate of operation.
As shown in figure 9, guide wire 30 is inserted into inner tube 20 by being fixed on supravasal guide wire 72 in order to be more convenient to operate
In, an end cap, the vacant end of the lead segment 301 of guide wire 30 and an instruction are removably fixed in the vacant end of guide wire 72
One end of silk 34 is fixedly connected, and fixed point is located at the back side of the bending direction of memory metal sheet 31, is bent memory metal sheet 31
When will pull instruction silk.Indicate that the other end of silk 34 stretches out end cap, instruction silk 34, which closes on, is arranged cue mark on one end of end cap
341.Cue mark 341 can be protrusion marker, be also possible to printing mark.It is provided on end cap for instruction silk and guide wire 30
By hole, hole shape limitation instruction silk 34 be bonded always with guide wire.It may also set up limitation instruction in certain guide wire 30
The structures such as the ring of 34 positions of silk make the side for indicating that silk 34 is always positioned at guide wire 30.Memory metal sheet 31 will pull when being bent
Refer to silk, keep cue mark mobile, by advance to 31 bending state of memory metal sheet end cap opposite with cue mark position into
Line flag, it is known that memory metal sheet 31 is carried out in Intrapyramidal state consequently facilitating patient controls operation.
As shown in figure 15, it is bent in order to facilitate conduit 10 and inner tube 20, in conduit 10 and inner tube 20 and memory metal sheet 31
At corresponding position, conduit 10 and the curved groove of inner tube 20 are convenient in delineation.
The insertion end of conduit 10 is preferably provided tapered so that it is convenient to operate.In order to avoid secondary fracture, third air bag 60
Diameter after inflation is less than the diameter after the inflation of the second air bag 50.
The final operation of operation is injection bone cement.The injection of bone cement has higher probability and reveals from crack, causes
Pulmonary embolism.There is no what good methods in existing technology to control this risk.The prior art, which has, is put into support for sponge ball
The technical solution of moisture in bone cement is absorbed in Injection Space after opening.The starting point of many technical solutions is similar with this.
Exactly control the mobility of bone cement.But poor fluidity will lead to the problems such as Cement fixation is insufficient.In addition, bone cement
Intensity and ess-strain performance directly affect its service life.
Therefore, such as Figure 10-14, before operation under unaerated state, 60 outer cladding metal of the second air bag 50 and third air bag
The aperture of net 80, metal mesh 80 is not more than 0.5mm.Metal mesh 80 is opened and is formed under inflated condition.It is formed and stops bone
Barrier of the cement to centrum outward leakage.In order to improve the adhesive force of metal mesh 80, i.e., after bone cement is by 80 mesh of metal mesh
It is still attached on metal mesh, metal mesh 80 is processed into hair side far from conduit on one side, or repeatedly with knurled wheel in metal mesh
Upper extrusion pit or groove.In order to guarantee that metal mesh 80 has enough deformabilities, thickness is not more than 0.5mm.Metal mesh meeting
It stays in bone cement after curing, the toughness of bone cement after hardening can be effectively improved, improved service life.
In order to improve hardening after bone cement ess-strain effect, i.e., pressure or other direction force effect under, bone cement
Toughness it is more preferable, be not likely to produce internal or external crack.Metal mesh 80 closes on the side fixed memory wire 81 of conduit 10, note
Recall wire 81 initial configuration be arranged to it is vertical with metal mesh 80.When metal mesh 80 is coated on unaerated air bag, memory gold
Belong to silk 81 and bend the surface for being attached to air bag, prevents it from puncturing air bag.The deformation temperature of memory wire 81 is 35-37 degree range
It is interior.
In order to preferably guarantee that bone cement will not flow on a large scale, the second metal mesh 82, the second gold medal are fixed on metal mesh 80
Belong to net 82 in the gap between the second air bag 50 and third air bag 60.It is strutted after air bag inflation.Second metal mesh 82
On there are sufficiently large gaps, pass through for the first, second, and third air bag to shrink, so that patient be facilitated to withdraw conduit 10.
In order to allow metal mesh 80 to be preferably bonded the broken face of centrum, airbag wall is not more than 0.5 millimeter, keeps air bag softer,
It can effectively be deformed when contacting broken face.
Metal mesh 80 can be with fixed memory wire mesh along the axial both ends of conduit 10, and spread apart forms ball under 37 degree
Face.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All any modifications in spirit of that invention and principle, made are equal
Replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of pyramid plastic operation guided by saccule component, including a conduit, inner tube is fixed in conduit, further includes guidance
Silk, which is characterized in that the insertion end of guide wire is inserted into the blind hole of inner tube insertion end, the guide wire include lead segment and
Supporting section, lead segment include memory metal sheet and heating element, and heating element reaches deformation temperature for heating memory metal
Degree, deformation temperature are higher than 42 degree, are lower than 60 degree；
The first air bag after an inflation for taper is fixed at the insertion end of conduit, the first air bag and conduit are coaxial, and the vertex of a cone is directed toward
The insertion end of conduit, conduit fix the second air bag and two third air bags, third far from the side of its insertion end in the first air bag
Air bag is located at the two sides of the second air bag, and is equidistantly spaced with the second air bag, after the second air bag and the inflation of third air bag
For cylinder；
Conduit is connected to air inlet, and conduit is connected to by venthole with the second air bag and third air bag, and one is fixed in conduit
Hose, hose one end are connected to the first air bag, and the other end stretches out conduit and is connected to a glueballs, inflation in glueballs；
Lead powder end in spray metal on the inner wall of second air bag and third air bag.
2. pyramid plastic operation according to claim 1 guided by saccule component, which is characterized in that after the inflation of the first air bag
Maximum gauge be greater than conduit diameter, less than the second air bag inflation after diameter.
3. pyramid plastic operation according to claim 1 guided by saccule component, which is characterized in that guide wire passes through fixation
In supravasal guide wire insertion inner tube, an end cap, the lead segment of guide wire are removably fixed in the vacant end of guide wire
Vacant end with one indicate silk one end be fixedly connected, fixed point is located at the back side of the bending direction of memory metal sheet, makes to remember
It will pull instruction silk when recalling sheet metal bending；
Indicate that the other end of silk stretches out end cap, instruction silk, which closes on, is arranged cue mark on one end of end cap；
The hole passed through for instruction silk and guide wire is provided on end cap, the shape limitation instruction silk in hole is bonded with guide wire always.
4. pyramid plastic operation according to claim 1 guided by saccule component, which is characterized in that conduit and inner tube and note
Recall at the corresponding position of sheet metal, delineates multiple along the axial spaced groove of conduit.
5. pyramid plastic operation according to claim 1 guided by saccule component, which is characterized in that after the inflation of third air bag
Diameter less than the second air bag inflation after diameter.
6. pyramid plastic operation according to claim 1 guided by saccule component, which is characterized in that the second air bag and third
The aperture of air bag outer cladding metal mesh, metal mesh 80 is not more than 0.5mm；Metal thickness of net is not more than 0.5mm.
7. pyramid plastic operation according to claim 6 guided by saccule component, which is characterized in that metal mesh closes on conduit
The fixed multiple memory wires in side, the initial configuration of memory wire is arranged to vertical with metal mesh；Metal mesh is coated on
When on unaerated air bag, memory wire bends the surface for being attached to air bag；The deformation temperature of memory wire is 35-37 degree range
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811001349.1A CN109124753B (en) | 2018-08-30 | 2018-08-30 | Balloon guide assembly for vertebroplasty |
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|---|---|---|---|
| CN201811001349.1A CN109124753B (en) | 2018-08-30 | 2018-08-30 | Balloon guide assembly for vertebroplasty |
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| CN109124753A true CN109124753A (en) | 2019-01-04 |
| CN109124753B CN109124753B (en) | 2021-02-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111603382A (en) * | 2020-06-16 | 2020-09-01 | 宁波市中医院 | Ear moxibustion device |
| CN113713227A (en) * | 2021-08-10 | 2021-11-30 | 中国人民解放军海军军医大学第三附属医院 | Developing air bag of endotracheal tube under ultrasound, and preparation tool, preparation process and preparation method thereof |
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| CN113713227B (en) * | 2021-08-10 | 2024-03-15 | 中国人民解放军海军军医大学第三附属医院 | Ultrasonic development air bag of tracheal catheter and preparation tool, preparation process and preparation method thereof |
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