CN1371752A - Pressre filling dilator and use method thereof - Google Patents
Pressre filling dilator and use method thereof Download PDFInfo
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- CN1371752A CN1371752A CN 01109038 CN01109038A CN1371752A CN 1371752 A CN1371752 A CN 1371752A CN 01109038 CN01109038 CN 01109038 CN 01109038 A CN01109038 A CN 01109038A CN 1371752 A CN1371752 A CN 1371752A
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Abstract
The present invention provides a pressure-injection dilator, and is characterized by that it has a hard thin tube, its one end is opened, and another end is closed, on the proper position of said tube a side opening aperture is cut, all the cutters are received in the hard thin tube, connecting piece connected with cutter is extended from the hard thin tube, a duct with bag body is extended into the hard thin tube. In said invention pressure-injection dilator is used to inject filler into pathologically-changed vertebral body to make outwards dilation and make the intervertebral space restore to original height. Said invention also provides its application method.
Description
The present invention relates to a kind of medical apparatus and instruments that is used for spinal disease, particularly a kind of injection-pressing dilator.
The spinal vertebral compression fracture that osteoporosis causes is common complaint among the elderly, frequently-occurring disease, accounts for about 20% of old people's miscellaneous fracture, can cause the compression of spinal vertebral, and spinal column rearward becomes the angle, and patient has an intense pain, and daily life is had a strong impact on.Traditional Therapeutic Method is expectant treatment, comprise analgesic utilization, lie up and brace is fixed.But these treatments all can't fundamentally be corrected deformity of spine, need long-term bed, old people's body constitution is descended comprehensively, and the alleviation of pain symptom are also not remarkable.It fixedly is the key of removing pain, early ambulant, improving function, improve quality of life and prolong patient's life-span that the rectification of deformity of spine reaches.Intervertebral disk hernia is sickness rate height (about 8%), cause lumbago and skelalgia, the commonly encountered diseases of harm humans health, frequently-occurring disease, quite a few patient needs operative treatment after expectant treatment is invalid, existing operation method is a vertebral pulp tissue ablation in the fibrous ring, releasing is to the compressing of nerve, but usually cause intervertebral space further narrow, lose stablely between the vertebral body sections, finally have to carry out the intervertebral bone-graft fusion.The common feature of above-mentioned two class diseases is the dissection component parts of FSU---vertebral body and intervertebral space compression or narrow, thus the spinal column fore-and-aft distance is shortened, it is narrow to produce kyphosis deformity and neural pipeline.The main direction of treatment is to recover spinal vertebral and the original height of intervertebral space, and gives held stationary or flexible fastening by the physiological function requirement.
The object of the present invention is to provide a kind of injection-pressing dilator, in the pathological changes vertebral body, inject implant by this injection-pressing dilator and expand outwardly, produce support force, make vertebral body return to original height the vertebra joint, or, make intervertebral space return to original height to narrow intervertebral space generation support force.
Another object of the present invention is to provide the application process of a kind of injection-pressing dilator in compression fracture of the spine, use vertebral body that this method can make compression fracture lose height and is recovered highly and keep stable.
Another purpose of the present invention is to provide a kind of injection-pressing dilator to recover cone and the application process of boring in the clearance height at intervertebral disk hernia, uses this method and can inject implant in intervertebral disc space, to recover the awl clearance height.
The object of the present invention is achieved like this:
A kind of injection-pressing dilator, this injection-pressing dilator is provided with the hard light wall pipe, this hard light wall pipe one end is made as opening, the other end is made as blind end, is provided with lateral openings apart from the body of appropriate location, blind end place, and cutter are placed in the hard light wall pipe, the blade of cutter is corresponding with lateral openings, the connector that is connected with cutter stretches out from the hard light wall pipe, and the conduit of a band utricule is stretched in the hard light wall pipe, and this utricule is corresponding with the lateral openings on the hard light wall pipe.
Aforesaid a kind of injection-pressing dilator, described hard light wall pipe is metal tube or plastic tube.
Aforesaid a kind of injection-pressing dilator, the thickness of described hard light wall pipe are not more than 2 millimeters.
Aforesaid a kind of injection-pressing dilator, the lateral openings on the body of described hard light wall pipe are one or more.
Aforesaid a kind of injection-pressing dilator, described cutter are provided with sharp circular blade, and the inboard wall of tube body at this circular blade and described lateral openings place is fitted.Wherein: described cutter can be has certain thickness disk, and circular blade is located on a section of disk edge; Perhaps, described cutter also can be one section thin annulus that is fitted in the inboard wall of tube body of hard light wall pipe, and circular blade is located on the ring wall of annulus.
Aforesaid a kind of injection-pressing dilator, described connector is connected position relative with blade on the cutter.Perhaps, described connector is connected the next door of cutter upper knife edge.Described connector is an elongate rod, and described connector page or leaf is elongated strip.
Aforesaid a kind of injection-pressing dilator, the external part of described connector is installed with handle.Also can: the external part of described connector is connected with lifting device; Wherein can be provided with like this: this lifting device is provided with handle, and handle is provided with storage tank, is provided with in the storage tank and the projection of the external part of connector or draw-in groove or the projection that draw-in groove fastens; The draw-in groove of the draw-in groove in the described storage tank or the external part of connector is a spiral type.Perhaps, described lifting device is provided with one section corrugated tubing, and corrugated tubing is provided with rotary handle, outwards is provided with thread segment for one section from stretching into the hard light wall pipe on the described connector, and this corrugated tubing and this thread segment are screwed.
A kind of application process of aforesaid injection-pressing dilator, this method comprises the steps:
A) determine the position of fracture cone, mini-incision appears either side awl nut, and boring is to the place ahead cone;
B) injection-pressing dilator that combines is stretched in the compression fracture cone along boring good bone hole;
C) pressurization injecting gas or liquid in the conduit of injection-pressing dilator support the utricule that compresses after cone is inflated and return to normal height, measure the pressure and the volume of infusion this moment;
D) discharge gas or the liquid that is injected;
E) the curable biomaterial implant of the liquid state that injection modulates in the conductive pipe reaches pressure and the volume identical with measured value;
F) before liquid biomaterial implant is solidified, promote built-in cutter in the injection-pressing dilator, cut away and stay the utricule of filling in the cone cavity, extract injection-pressing dilator.
Wherein, among described step a, c, e, the f, available X ray is observed.
The curable biomaterial implant of described liquid state is a Gypsum Fibrosum in bone cement or the hydroxyapatite.
A kind of application process of aforesaid injection-pressing dilator, this method comprises the steps:
A) determine the intervertebral disk hernia gap, after mini-incision appears this gap, extract outstanding intervertebral disc, nucleus pulposus in the cleaning fibrous ring keeps intervertebral space cartilage endplate up and down;
B) injection-pressing dilator after will making up stretches in the awl gap along the hole of disc removal;
C) injecting gas or liquid in the conduit of injection-pressing dilator make the awl gap recover normal height under the support of expansible utricule, measure the pressure and the volume of infusion this moment;
D) discharge gas or the liquid that is injected;
E) the curable biomaterial implant of the liquid state that injection modulates in the conductive pipe reaches pressure and the volume identical with measured value;
F) before liquid biomaterial implant is solidified, promote built-in cutter in the injection-pressing dilator, cut away and stay the utricule of filling in the cone cavity, extract injection-pressing dilator.
Wherein: among described step a, c, e, the f, available X ray is observed.
The curable biomaterial implant of described liquid state is hydrogel precursor A liquid, B liquid or polyurethane precursor A liquid, B liquid.
The liquid that injects among the described step c is normal saline or contrast agent.
In described step e, the curable biomaterial implant of injecting the liquid state modulate in conductive pipe makes the swelling bag body be positioned at best load-bearing district after reaching pressure identical with measured value and volume.
Principle of the present invention is: use injection-pressing dilator of the present invention, method by Minimally Invasive Surgery, injection-pressing dilator is sent in the vertebral body of fresh compression fracture through the one-sided pedicle of vertebral arch approach of spinal vertebral, or send into intervertebral space through intervertebral disk hernia Nuclectomy postoperative fibrous ring cut, under the pressure that produces by gas or liquid, sacculus in the hard light wall pipe expands outwardly from lateral openings, compression fracture is produced support force, make vertebral body return to original height, or, make intervertebral space return to original height to narrow intervertebral space generation support force.And form a cavity in vertebral body or in the intervertebral space, after volume is surveyed in pressure measurement, emit gas or liquid, in the utricule cavity, go into Gypsum Fibrosum in the bone cement of volume rapid condensation or the hydroxyapatite again with pressure injection, in intervertebral space, in the sacculus cavity, go into high molecular polymer with pressure injection, as hydrogel or polyurethane, wherein hydrogel is commonly used for the alternate material of articular surface cartilage, and polyurethane is usually used in artificial blood vessel.Before being and injecting, its injection mode is liquid state, injects by behind the lacuna of balloon expandable that it is big that volume becomes by narrow and small hole, the space of being expanded by utricule by the shape filling of physiology cavity, and the polymerization Hirschfeld-Klinger reaction takes place.Bone cement is a solid by monomer and cement flour modulation after coagulation, vertebral body is had strong support and fixation, and (Gypsum Fibrosum has same purpose in the hydroxyapatite, and can induce bone to grow into), treat just can make after bone cement solidifies the fractured vertebral body recovery like this and keep original height, thereby the alleviating pain symptom is improved function.Hydrogel, polyurethane are injected by precursor A liquid and the mixed back of B liquid, polymerization reaction take place in vivo, form high molecular polymer, formation has certain elastic solid, its physical behavior must function thereby reach physiology such as keeping the axial conductance of disc height, absorption and buffering, damping very near the reconstruction of nucleus gelatinosus tissue of physiological status.
Use injection-pressing dilator of the present invention, have following advantage:
1, the present invention adopts the hard light wall pipe as the carrier that stretches in the vertebra, this hard light wall pipe content is provided with the flexible pipe that has utricule, flexible pipe can be extend into the vertebral body or the intervertebral space of human body from tiny hole, thereby only need on human body, to cause Wicresoft's wound just flexible pipe pedicle or fibrous ring can be entered vertebral body or intervertebral space.
2, injection-pressing dilator of the present invention is equipped with cutter in the hard light wall pipe, the blade of these cutter is corresponding with lateral openings.When the cutting utricule, can in the hard light wall pipe, carry out cutting operation.This internal-cutting way can be very easily enters in the vertebral body of human body or the intervertebral space by Minimally Invasive Surgery (little otch or endoscope path way) and carries out cutting operation, and this internal-cutting way can not stay the unnecessary capsule base of a fruit with respect to comparing in external circumscribed mode of cutting after the cutting on the utricule that stays in the body.
3, injection-pressing dilator of the present invention by annotate pressing the mode that makes balloon expandable, makes in the vertebral body of fresh compression fracture or the narrow intervertebral space in the outstanding back of intercalated disc produces and supports project power, and one of the formation of safety and the suitable cavity of physiologic spaces.Inject Gypsum Fibrosum or high molecular polymer in liquid bone cement or the hydroxyapatite, the vertebral body that makes compression fracture lose height after polymerization is solidified is recovered height and is kept stable, or make intercalated disc outstanding, after extracing, underwent operative regains support in the cavity of intervertebral space, thereby obtain the physiological function of stable or damping, make fractured vertebral body be recovered height, correct kyphosis deformity and stable, or narrow intervertebral space is recovered highly and keep elastic stability.By in tiny pipeline, injecting material such as bone cement or high molecular polymer in the bigger cavity of far-end volume by liquid condition, make its mode that polymerization Hirschfeld-Klinger reaction takes place, can realize that thus Minimally Invasive Surgery solves thorny and complicated problems.
Further describe the present invention below in conjunction with accompanying drawing:
Fig. 1 is for being placed in the cutter in the hard light wall pipe among the present invention;
The lifting device of Fig. 2 for linking to each other with the connector that is connected cutter among the present invention;
Fig. 3 is the hard light wall pipe among the present invention;
Fig. 4 is for having the flexible pipe of utricule among the present invention;
Fig. 5 is the assembling sketch map of injection-pressing dilator of the present invention;
Fig. 6 inflates in conductive pipe for injection-pressing dilator of the present invention or liquid makes utricule from the outside expansible sketch map of the lateral openings of hard light wall pipe;
Fig. 7 is injecting the sketch map that cuts after implant expands utricule for injection-pressing dilator of the present invention;
Fig. 8 expands the vertebral body cross-sectional view for injection-pressing dilator of the present invention pressurizes after one-sided pedicle of vertebral arch enters vertebral body;
Fig. 9 is the sagittal bitmap of Fig. 8;
Figure 10 expands cross-sectional view for injection-pressing dilator of the present invention pressurizes after intercalated disc fibrous ring aperture enters intervertebral space;
Figure 11 is the sagittal bitmap of Figure 10;
Figure 12 is the normal vertebral body sections;
After Figure 13 was compression fracture, pedicle was inserted the sketch map of injection-pressing dilator;
Figure 14 for the present invention after injecting the pressurization of gas or liquid, utricule expands compressed vertebral body is strutted, and recovers its sketch map of height originally;
Figure 15 promotes cutter before solidifying for implant, and extracts injection-pressing dilator integral body, and the sacculus the base of a fruit that be full of by content this moment is cut off, and implant is stayed and supported in by the space of its expansion and the sketch map of fixed effect;
Figure 16 is the normal vertebral body sections;
Figure 17 is the sketch map of intervertebral disk hernia, stenosis of disc space;
Figure 18 enters intervertebral space with injection-pressing dilator through the outstanding fibrous ring cut of intercalated disc for through the outstanding intercalated disc of Minimally Invasive Surgery excision and after clearing up intervertebral space, and sacculus struts narrow intervertebral space, recovers its sketch map of height originally;
Figure 19 is preceding with the cutter lifting for solidifying, and extracts injection-pressing dilator integral body, and the utricule the base of a fruit that be full of by content this moment is cut off, and utricule stays the sketch map that plays support and resiliently mounted effect in by the space of its expansion.
The embodiment of injection-pressing dilator:
To shown in Figure 7, Figure 1 shows that cutter referring to Fig. 1; Fig. 2 is a lifting device; Fig. 3 is the hard light wall pipe, can be near hollow is provided with side opening blind end metal tube as figure; Fig. 4 is for the conduit of band utricule, as catheter; Fig. 5 is the assembling sketch map after Fig. 1 assembles to each parts shown in Figure 4; Fig. 6 is inflation or a liquid in the conductive pipe, makes utricule from the expansible sketch map of metal tube side opening part; Figure 7 shows that: after inflation (water) → pressure measurement → survey volume → venting → charges inject and are full of utricule, rotary cutter promotes bolt, retreat metal tube, be about to the sketch map that ball the base of a fruit cuts off (this step in vivo lacuna with utricule behind the space internal fixation of being expanded by gas, can finish).
The invention provides a kind of injection-pressing dilator, this injection-pressing dilator is provided with hard light wall pipe 1, one end of this hard light wall pipe 1 is made as opening 12, the other end is made as blind end 11, (this appropriate location is tool blind end one segment distance apart from appropriate location, blind end 11 place, relevant with following factor: in the intravital spatial dimension of awl, this blind end is as to the fashionable power that struts that enters that the shell that has utricule is provided of cone interpolation, can not be so lateral openings should be tried one's best forward at the head foremost of blind end, cutter are placed in the bottom of blind end, need take a part of space) body be provided with lateral openings 13, one cutter 2 are placed in the hard light wall pipe 1, the blade 21 of cutter 2 is corresponding with lateral openings 13, the connector 22 that is connected with cutter 2 stretches out from hard light wall pipe 1, the conduit 3 of one band utricule 32 is stretched in the hard light wall pipe 1, and this utricule 32 is corresponding with the lateral openings 13 on the hard light wall pipe 1.This utricule 32 is communicated with by opening 31 with conduit 3.
The work process of injection-pressing dilator of the present invention is: the cutter that will be connected with connector put in the hard light wall pipe, make cutter place the bottom of hard light wall pipe, will put in the conduit of utricule in the hard light wall pipe then, make utricule corresponding with the lateral openings of hard light wall pipe.By conduit injecting gas or liquid in utricule, utricule outwards expands from lateral openings.After in utricule, being filled to required biomaterial or implant, in the time will taking out this injection-pressing dilator, the pulling connector, the blade of cutter is corresponding with lateral openings, make blade cutting utricule in pipe of cutter, thereby utricule is stayed in the body, take out injection-pressing dilator.It is as shown in Figs. 8 to 11 that this injection-pressing dilator stretches into the various forms of cone.Fig. 8 expands the vertebral body cross-sectional view for injection-pressing dilator pressurizes after one-sided pedicle of vertebral arch enters vertebral body; Fig. 9 is the sagittal bitmap of Fig. 8; Figure 10 expands cross-sectional view for injection-pressing dilator pressurizes after intercalated disc fibrous ring aperture enters intervertebral space; Figure 11 is the sagittal bitmap of Figure 10.
Aforesaid injection-pressing dilator, wherein, described hard light wall pipe 1 can be metal tube.The best, the thickness of described hard light wall pipe are not more than 2 millimeters.
Described cutter 2 are provided with sharp circular blade 21, and this circular blade 21 is fitted with the inboard wall of tube body at described lateral openings 13 places.These cutter have numerous embodiments, and wherein: described cutter are for having certain thickness disk 23, and circular blade 21 is located on a section of disk 23 edges.Perhaps, described cutter 2 are one section thin annulus that is fitted in the inboard wall of tube body of hard light wall pipe 1, and circular blade is located on the ring wall of annulus.
Described connector is connected position relative with blade on the cutter, makes the blade of cutter can touch utricule more in large area when cutting; Also described connector can be connected the next door of cutter upper knife edge, when promoting cutter, help the stressing conditions of connector and cutter.
Described connector 22 is an elongate rod, and perhaps this connector is elongated strip.
Described conduit has multiple application, can be rubber tube, as catheter common in hospital.
Carry out cutting operation for cutter are promoted, the external part 24 of described connector 22 is installed with the hands handle; Perhaps the external part at described connector is connected with lifting device 4.Wherein: described lifting device 4 is provided with handle 41, and handle 41 is provided with storage tank, is provided with in the storage tank and the projection of the external part of connector or draw-in groove or the projection that draw-in groove fastens.The draw-in groove of the draw-in groove in the described storage tank or the external part of connector is a spiral type, and therefore, the external part of handle and connector after the clamping, is rotated mutually, connector can be promoted a segment distance, thereby the blade that drives cutter promotes and begins to cut; Extract connector drive cutter by handle then and finish cutting.Perhaps, described lifting device 4 is provided with one section corrugated tubing, corrugated tubing is provided with rotary handle, outwards be provided with thread segment for one section from stretching into the hard light wall pipe on the described connector, this corrugated tubing and this thread segment are screwed, this similar is in the structure of leading screw, and the rotation of corrugated tubing in the axial restraint position drives connector by the threaded engagement between corrugated tubing and the thread segment and do axial rectilinear motion, cuts thereby reach the lifting cutter.The structure of this lifting device has the labour-saving advantage, and, promote between the mouth of pipe and lifting device that caused stressed act on the hard light wall pipe, can between hard light wall pipe and human body, not produce active force.The embodiment 1 of injection-pressing dilator application process:
Present embodiment is the application process of injection-pressing dilator in compression fracture of the spine.Extremely shown in Figure 15 referring to Figure 12 simultaneously, Figure 12 is the normal vertebral body sections; After Figure 13 was compression fracture, pedicle was inserted the sketch map of injection-pressing dilator; Figure 14 is for after injecting the pressurization of gas or liquid, and utricule struts compressed vertebral body, recovers its height originally, and after the X line was determined, volume was surveyed in pressure measurement, and venting (or liquid) will be gone into pressure injection once more with implants such as volume bone cements, struts compressed intervertebral space; Figure 15 is that the ring-type cutter that will be arranged on before solidifying in the hard light wall pipe promote, and extracts injection-pressing dilator integral body, and be cut off by the base of a fruit of the utricule that content is full of this moment, and bone cement stays in by the space of its expansion, plays and supports and fixed effect.
The application process of the injection-pressing dilator of present embodiment in compression fracture of the spine described in detail by following steps:
1, after fractured vertebral body was determined in X line location, mini-invasive incision (2-3cm) appeared any side pedicle of vertebral arch, or microtrauma more, only through skin puncture implantation catheter, and distal end of catheter contact pedicle of vertebral arch;
2, under three-dimensional orientation device guiding, pedicle boring reaches the place ahead vertebral body and through the X line justification;
3, combination type injection-pressing dilator (different-diameter is arranged, can select according to different pore sizes) is being put into the compression fracture vertebral body along boring good bone hole;
4, pressurization injecting gas or liquid (normal saline or contrast agent) in the combination type injection-pressing dilator, the height that observation compression vertebral body is recovered by the sacculus support under the X line monitors reaches till the normal back;
5, measure the pressure of this moment, measure the volume of institute's injecting gas or liquid;
6, emit gas or the liquid that is injected;
7, by Gypsum Fibrosum in liquid bone cement that modulates with the injection of pressure co-content or the hydroxyapatite;
8, after the x-ray observation vertebral height recovers, before solidifying, bone cement promotes the built-in ring-type cutter of injection-pressing dilator, make sharp knife edges protrude in the far-end side opening, extract injection-pressing dilator integral body, bone cement under the sacculus of cavity filling can being contained is stranded in the fractured vertebral body, reach the recovery vertebral height, and make vertebral body have the purpose of enough stable support power.The embodiment 2 of injection-pressing dilator application process:
Present embodiment is that injection-pressing dilator recovers cone and the application process of boring in the clearance height at intervertebral disk hernia.
See also Figure 16 to shown in Figure 19.Figure 16 is the normal vertebral body sections; Figure 17 is the sketch map that intervertebral disk hernia, stenosis of disc space produce pathological changes; Figure 18 is for after giving prominence to intercalated disc and clear up intervertebral space through the Minimally Invasive Surgery excision, with injection-pressing dilator after the outstanding fibrous ring cut of intercalated disc enters intervertebral space, after injecting the pressurization of gas or liquid, utricule struts narrow intervertebral space, recover its height originally, after the X line was determined, volume was surveyed in pressure measurement, venting (or liquid), the sketch map after will injecting with volume high molecular polymer polymerization precursor is liquid; Figure 19 before solidifying promotes the ring-type cutter in the hard light wall pipe, and extract injection-pressing dilator integral body, the utricule the base of a fruit that be full of by content this moment is cut off, and the high molecular polymer after the polymerization stays in by the space of its expansion, plays and supports and resiliently mounted effect.
The injection-pressing dilator of present embodiment is described in detail by following steps at the application process that intervertebral disk hernia recovers in cone and the awl clearance height:
1, after the outstanding gap of intercalated disc was determined in X line location, mini-invasive incision (2-3cm) appeared this gap, or microtrauma more, only entered in the nerve root canal under endoscope through the skin puncture, observed and also determined outstanding intervertebral disc;
2, use vertebral pulp pincers, holmium laser or high-frequency sasser to extract outstanding intervertebral disc, and nucleus pulposus in the cleaning fibrous ring, and note protection intervertebral space cartilage endplate up and down;
3, after nucleus pulposus is removed totally in the fibrous ring, combination type injection-pressing dilator (different-diameter is arranged, can select according to different pore sizes) is being put into this intervertebral space along the small hole of disc removal;
4, pressurization injecting gas or liquid (normal saline or contrast agent) in the combination type injection-pressing dilator, under the X line monitors, observe this intervertebral space by the sacculus filling support the height that is recovered reach normal and determine sacculus be positioned at best load-bearing district after till;
5, measure the pressure of this moment, measure the volume of institute's injecting gas or liquid;
6, emit gas or the liquid that is injected;
7, by injecting hydrogel precursor A liquid, B liquid or polyurethane precursor A liquid, the B liquid that modulates with the pressure co-content;
8, after the x-ray observation disc height recovers, before the high molecular polymer polymerization is finished, promote the built-in ring-type cutter of injection-pressing dilator, make sharp knife edges protrude in the far-end side opening, extract injection-pressing dilator integral body, high molecular polymer under the sacculus of cavity filling can being contained is stranded in the intervertebral space, reaches the recovery disc height, and makes this gap have elastic shock attenuation and stable purpose.
Claims (24)
1, a kind of injection-pressing dilator, it is characterized in that: this injection-pressing dilator is provided with the hard light wall pipe, this hard light wall pipe one end is made as opening, the other end is made as blind end, is provided with lateral openings apart from the body of appropriate location, blind end place, and cutter are placed in the hard light wall pipe, the blade of cutter is corresponding with lateral openings, the connector that is connected with cutter stretches out from the hard light wall pipe, and the conduit of a band utricule is stretched in the hard light wall pipe, and this utricule is corresponding with the lateral openings on the hard light wall pipe.
2, a kind of injection-pressing dilator as claimed in claim 1 is characterized in that: described hard light wall pipe is metal tube or plastic tube.
3, a kind of injection-pressing dilator as claimed in claim 1 is characterized in that: the thickness of described hard light wall pipe is not more than 2 millimeters.
4, a kind of injection-pressing dilator as claimed in claim 1 is characterized in that: the lateral openings on the body of described hard light wall pipe is one or more.
5, a kind of injection-pressing dilator as claimed in claim 1, it is characterized in that: described cutter are provided with sharp circular blade, and the inboard wall of tube body at this circular blade and described lateral openings place is fitted.
6, a kind of injection-pressing dilator as claimed in claim 5 is characterized in that: described cutter are for having certain thickness disk, and circular blade is located on a section of disk edge.
7, a kind of injection-pressing dilator as claimed in claim 5 is characterized in that: described cutter are one section thin annulus that is fitted in the inboard wall of tube body of hard light wall pipe, and circular blade is located on the ring wall of annulus.
8, a kind of injection-pressing dilator as claimed in claim 1, it is characterized in that: described connector is connected position relative with blade on the cutter.
9, a kind of injection-pressing dilator as claimed in claim 1, it is characterized in that: described connector is connected the next door of cutter upper knife edge.
10, a kind of injection-pressing dilator as claimed in claim 1 is characterized in that: described connector is an elongate rod.
11, a kind of injection-pressing dilator as claimed in claim 1 is characterized in that: described connector is elongated strip.
12, a kind of injection-pressing dilator as claimed in claim 1, it is characterized in that: the external part of described connector is installed with handle.
13, a kind of injection-pressing dilator as claimed in claim 1, it is characterized in that: the external part of described connector is connected with lifting device.
14, a kind of injection-pressing dilator as claimed in claim 13, it is characterized in that: described lifting device is provided with handle, and handle is provided with storage tank, is provided with in the storage tank and the projection of the external part of connector or draw-in groove or the projection that draw-in groove fastens.
15, a kind of injection-pressing dilator as claimed in claim 14 is characterized in that: the draw-in groove of the draw-in groove in the described storage tank or the external part of connector is a spiral type.
16, a kind of injection-pressing dilator as claimed in claim 13, it is characterized in that: described lifting device is provided with one section corrugated tubing, corrugated tubing is provided with rotary handle, outwards is provided with thread segment for one section from stretching into the hard light wall pipe on the described connector, and this corrugated tubing and this thread segment are screwed.
17, the application process of injection-pressing dilator as claimed in claim 1, this method comprises the steps:
A) determine the position of fracture cone, mini-incision appears either side awl nut, and boring is to the place ahead cone;
B) injection-pressing dilator that combines is stretched in the compression fracture cone along boring good bone hole;
C) pressurization injecting gas or liquid in the conduit of injection-pressing dilator support the utricule that compresses after cone is inflated and return to normal height, measure the pressure and the volume of infusion this moment;
D) discharge gas or the liquid that is injected;
E) the curable biomaterial implant of the liquid state that injection modulates in the conductive pipe reaches pressure and the volume identical with measured value;
F) before liquid biomaterial implant is solidified, promote built-in cutter in the injection-pressing dilator, cut away and stay the utricule of filling in the cone cavity, extract injection-pressing dilator.
18, the application process of injection-pressing dilator as claimed in claim 17 is characterized in that: among described step a, c, e, the f, available X ray is observed.
19, the application process of injection-pressing dilator as claimed in claim 17 is characterized in that: the curable biomaterial implant of described liquid state is a Gypsum Fibrosum in bone cement or the hydroxyapatite.
20, the application process of injection-pressing dilator as claimed in claim 1, this method comprises the steps:
A) determine the intervertebral disk hernia gap, after mini-incision appears this gap, extract outstanding intervertebral disc, nucleus pulposus in the cleaning fibrous ring keeps intervertebral space cartilage endplate up and down;
B) injection-pressing dilator after will making up stretches in the awl gap along the hole of disc removal;
C) injecting gas or liquid in the conduit of injection-pressing dilator make the awl gap recover normal height under the support of expansible utricule, measure the pressure and the volume of infusion this moment;
D) discharge gas or the liquid that is injected;
E) the curable biomaterial implant of the liquid state that injection modulates in the conductive pipe reaches pressure and the volume identical with measured value;
F) before liquid biomaterial implant is solidified, promote built-in cutter in the injection-pressing dilator, cut away and stay the utricule of filling in the cone cavity, extract injection-pressing dilator.
21, the application process of injection-pressing dilator as claimed in claim 20 is characterized in that: among described step a, c, e, the f, available X ray is observed.
22, the application process of injection-pressing dilator as claimed in claim 20 is characterized in that: the curable biomaterial implant of described liquid state is hydrogel precursor A liquid, B liquid or polyurethane precursor A liquid, B liquid.
23, the application process of injection-pressing dilator as claimed in claim 20 is characterized in that: the liquid that injects among the described step c is normal saline or contrast agent.
24, the application process of injection-pressing dilator as claimed in claim 20, it is characterized in that: among the described step e, the curable biomaterial implant of injecting the liquid state modulate in conductive pipe makes the swelling bag body be positioned at best load-bearing district after reaching pressure identical with measured value and volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011090383A CN1169586C (en) | 2001-02-27 | 2001-02-27 | Pressre filling dilator and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011090383A CN1169586C (en) | 2001-02-27 | 2001-02-27 | Pressre filling dilator and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1371752A true CN1371752A (en) | 2002-10-02 |
| CN1169586C CN1169586C (en) | 2004-10-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011090383A Expired - Fee Related CN1169586C (en) | 2001-02-27 | 2001-02-27 | Pressre filling dilator and use method thereof |
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| Country | Link |
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| CN (1) | CN1169586C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007033583A1 (en) * | 2005-09-19 | 2007-03-29 | Naiqing Wu | A bone dilator |
| CN100415181C (en) * | 2005-06-08 | 2008-09-03 | 左适佑 | A diffusion device for animal tissue injection filling |
| CN100534398C (en) * | 2006-02-09 | 2009-09-02 | 邹德威 | Coupling full intervertebral joints system |
| WO2010139093A1 (en) * | 2009-06-05 | 2010-12-09 | Shao Weixing | Vertebra filler |
| CN101272742B (en) * | 2005-07-07 | 2011-08-31 | 十字桅杆药品公司 | Devices for the treatment of bone fracture |
| CN102370502A (en) * | 2010-08-24 | 2012-03-14 | 思邦科技脊柱智慧集团股份公司 | System for distracting an intervertebral disc space |
| CN106361421A (en) * | 2016-08-30 | 2017-02-01 | 李志强 | Olecranal fracture fixator |
| CN115844601A (en) * | 2023-02-24 | 2023-03-28 | 中国医学科学院北京协和医院 | Double-cavity balloon catheter for nucleus pulposus repair |
-
2001
- 2001-02-27 CN CNB011090383A patent/CN1169586C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100415181C (en) * | 2005-06-08 | 2008-09-03 | 左适佑 | A diffusion device for animal tissue injection filling |
| CN101272742B (en) * | 2005-07-07 | 2011-08-31 | 十字桅杆药品公司 | Devices for the treatment of bone fracture |
| WO2007033583A1 (en) * | 2005-09-19 | 2007-03-29 | Naiqing Wu | A bone dilator |
| US8292890B2 (en) | 2005-09-19 | 2012-10-23 | Naiqing Wu | Bone dilator |
| CN100534398C (en) * | 2006-02-09 | 2009-09-02 | 邹德威 | Coupling full intervertebral joints system |
| WO2010139093A1 (en) * | 2009-06-05 | 2010-12-09 | Shao Weixing | Vertebra filler |
| CN102370502A (en) * | 2010-08-24 | 2012-03-14 | 思邦科技脊柱智慧集团股份公司 | System for distracting an intervertebral disc space |
| CN106361421A (en) * | 2016-08-30 | 2017-02-01 | 李志强 | Olecranal fracture fixator |
| CN115844601A (en) * | 2023-02-24 | 2023-03-28 | 中国医学科学院北京协和医院 | Double-cavity balloon catheter for nucleus pulposus repair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1169586C (en) | 2004-10-06 |
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Effective date of registration: 20160323 Address after: 100089 Beijing Haidian District Zizhuyuan Road No. 31, room 915, China and Macao Center Jiahui yuan Patentee after: Beijing Orthopedic Innovation Inc. Address before: 100101 Beijing City, Anxiang Road No. 9 No.306 Hospital Patentee before: Zou Dewei |
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Address after: 102401 No. 11 Baiyang Road, Liangxiang Township, Fangshan District, Beijing Patentee after: China Medical Instruments (Beijing) Co., Ltd. Address before: Room 915, Jiahui Court, Huaao Center, 31 Zizhuyuan Road, Haidian District, Beijing, 100089 Patentee before: Beijing Orthopedic Innovation Inc. |
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Granted publication date: 20041006 Termination date: 20200227 |