Take bolt device and take pin deviceTechnical field
The present invention relates to the technical field of medicine equipment, take bolt device more particularly, to one kind and take pin device.
Background technology
Currently, cardiovascular and cerebrovascular disease annoyings many elderly, especially thrombus disease, including brain thrombus oftenOr other position thrombus, if processing easily causes the even death of serious sequelae not in time.For thrombus situation, at presentThe method of solution has medicine thrombolysis and machinery takes bolt, specific as follows：
Medicine thrombolysis has two kinds, and one kind is that thrombolytics is directly injected into vein blood vessel, i.e. intravenous thrombolysis, it is another be will be moltenSuppository selects conduit to inject at endovascular thrombus by super, and moment forms very high thrombolysis agent concentration, quickening blood at thrombusThe dissolution velocity of bolt, i.e. Arterial thrombolysis；However, medicine thrombolysis is only applicable to the small fresh thrombus just formed, to volume compared withBig occluding thrombus effect is poor, and the Endovascular Embolization caused for formation time longer old thrombus breaks loose is thenIt is helpless.
Machinery takes bolt to be that bolt device will be taken to be transported to thrombus position, then further takes out thrombus from blood vessel, including bloodThe broken bolt of bolt resection, laser, catching device, which take bolt, catches bolt net takes bolt etc..However, thrombectomy and the broken bolt of laser can be to blood vesselsLarger damage is produced, easily causes various complication；Catching device of the prior art takes bolt firmly to entangle blood clot,There is the caducous problem of thrombus, catch bolt net and take bolt to there is the problem of volume can not reach tortuous or minute blood vessel greatly, from withoutBeneficial to the taking-up of thrombus.
Based on problem above, propose a kind of to make thrombus difficult for drop-off and small volume take pin device to be particularly important.
The content of the invention
Bolt device is taken it is an object of the invention to provide one kind and pin device is taken, and of the prior art takes bolt device taking to alleviateFirmly thrombus can not be entangled during bolt and caducous problem occur, also, effectively alleviation takes bolt body in the prior artLarger, the problem of service condition is limited of product.
One kind that the present invention is provided take bolt device include distal end fixing end, the first near-end fixing end, the second near-end fixing end withAnd take bolt support；
Described to take bolt support to include inner support and support arm, the inner support is with the support arm in the distal end fixing endPlace is connected as one；
The near-end of the support arm is fixedly connected with the first near-end fixing end；
The near-end of the inner support is fixedly connected with the second near-end fixing end；
It is slidably connected between the second near-end fixing end and the first near-end fixing end so that the inner support canRelative to support arm movement.
As a kind of further technical scheme, cyclic structure, described second are provided with the first near-end fixing endNear-end fixing end is used to be fixedly connected with control lever；
The control lever is slidably connected with the cyclic structure.
As a kind of further technical scheme, the proximal end of the support arm is provided with least one and the ring-type knotThe first near-end convergence silk of structure connection；The proximal end of the inner support is provided with least one and manipulates what boom end was connected with describedSecond near-end converges silk；
The first near-end convergence silk is correspondingly arranged with second near-end convergence silk.
As a kind of further technical scheme, the interlaced common shape of far-end of the support arm and the inner supportSilk is converged into distal end, the distal end convergence silk is fixedly connected with the distal end fixing end.
As a kind of further technical scheme, converge the densely arranged formation distal end protector of silk for the distal end, and withThe curved connection of distal end fixing end, makes described to take bolt support and the distal end protector to turn into an entirety；
Macromolecular fibre film with holes is provided with the distal end protector, or is woven by wire, polymeric material silkInto network structure.
As a kind of further technical scheme, the mesh of the mesh of the inner support and the support arm is staggered,And be the grid closed loop configuration of laser engraving or welding.
As a kind of further technical scheme, the length dimension of the inner support is less than the length ruler of the support armIt is very little；
In the case where being acted on without external force, the diameter of the inner support is equal to or more than the diameter of support arm.
It is the distal end fixing end, the first near-end fixing end, described second near as a kind of further technical schemeDeveloping mark is provided with end fixing end and at least one taken in bolt support.
As a kind of further technical scheme, stabilization filament termination is provided with the distal end fixing end.
One kind that the present invention is provided takes pin device to include taking bolt device and prepackage sheath, delivery conduit and control lever；
The near-end for taking bolt device is connected with the control lever, and mounted described takes bolt device to be pressed with the control leverHold intrathecal into prepackage；
By promote the control lever can make it is described take bolt device to enter from the prepackage sheath in delivery conduit, and by defeatedSend conduit to deliver at thrombus to discharge.
Compared with prior art, the present invention provide take bolt device and take pin device to have the advantage that for：
What the present invention was provided take bolt device, including distal end fixing end, the first near-end fixing end, the second near-end fixing end and takeBolt support；Wherein, bolt support is taken to include inner support and support arm, and inner support is connected as one with support arm at the fixing end of distal endBody；The near-end of support arm is fixedly connected with the first near-end fixing end, and the near-end of inner support is fixedly connected with the second near-end fixing end,And second be slidably connected between near-end fixing end and the first near-end fixing end, so that inner support can be moved relative to support armIt is dynamic；And inner support and support arm are used in conjunction with each other and thrombus firmly can be captured, when having that thrombus is broken to come off, farThe distal end protector of end convergence silk composition can prevent the thrombus blocking distal vessels that come off.
Specifically, after the delivery conduit for taking bolt device reaches thrombus far-end, bolt device will be taken to deliver to blood by delivery conduitIt is fixed to live to control seal wire to withdraw delivery conduit at bolt, make to take bolt device under natural resiliency effect at thrombus to deploy, at this moment pull behaviourControl lever, the relative support arm of inner support meeting is moved proximally to, and causes two stands width of mesh to change, and then catches thrombus, mostThe thrombus for taking bolt device and capture is taken out from blood vessel afterwards, to complete to take bolt process.
What the present invention was provided takes bolt device that the near-end of inner support and support arm can in operation relatively moved, and twoPerson is relatively fixed in distal end, so as to by adjusting the distance between the near-end of inner support and the near-end of support arm, change interiorThe relative position relation of support and support arm, further changes the false relation of inner support and mesh on support arm, and then canThe thrombus in embedded inner support and support arm mesh is captured, thrombus is firmly captured；And when having that thrombus is broken to come off, distal endThe distal end protector of convergence silk composition can prevent the thrombus blocking distal vessels that come off；Also, what the present invention was provided takes bolt deviceInitial volume it is smaller, in order to be placed into all kinds of blood vessels of human body, be no longer influenced by the limitation of volume；Take bolt device in bloodIt can deploy, and be fitted with vascular wall, so as to increase capture cross-sectional area, improve thrombus and be captured as power.
What the present invention was provided takes pin device to include taking bolt device and prepackage sheath, delivery conduit；Wherein, take the near-end of bolt device withControl lever is connected, and takes bolt device to be pressed with control lever to hold intrathecal into prepackage after installing, by promoting control lever to make to takeBolt device enters in delivery conduit from prepackage sheath, and delivers to thrombus release by delivery conduit.
The specifically used process of what the present invention was provided take pin device is：Punctured first from femoral artery or arteria brachialis and put sheath simultaneouslyTo angiogram in order to determine the position of Intravascular Thrombus, blood vessel where guiding catheter then is delivered into thrombus passes through guidingConduit delivers to delivery conduit the distal end of thrombus, then bolt device will be taken to be sent to by delivery conduit at thrombus, fixed to live to control seal wireDelivery conduit is withdrawn, now takes bolt device to deploy under natural resiliency effect, and is fitted with vascular wall, control lever is then pulled, fromAnd change the relative position of the near-end of inner support and the near-end of support arm, and then change mesh on inner support and support arm staggeredlyPosition relationship, so the thrombus being embedded into mesh can be captured, continues control lever of pulling back, and bolt support and thrombus will be taken to draw in the lumpEnter into guiding catheter, while with large syringe pumpback guiding catheter, to prevent small thrombus from escaping, pin device is most taken at lastAnd thrombus is pulled out in vitro.
What the present invention was provided takes pin device identical with the above-mentioned technique effect for taking bolt device to have and technical advantage, herein notRepeat again.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior artThe accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing belowAccompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paidPut, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 a kind of takes bolt device and the first schematic diagram of control lever for what the present invention was provided；
Fig. 2 a kind of takes bolt device and the second schematic diagram of control lever for what the present invention was provided；
Converge the schematic diagram of silk in the distal end for the first form that Fig. 3 provides for the present invention；
Converge the schematic diagram of silk in the distal end for second of form that Fig. 4 provides for the present invention；
Converge the schematic diagram of silk in the distal end for the third form that Fig. 5 provides for the present invention；
The first near-end convergence silk and the signal of the first combination of the second near-end convergence silk that Fig. 6 provides for the present inventionFigure；
The first near-end convergence silk and the signal of second of combination of the second near-end convergence silk that Fig. 7 provides for the present inventionFigure；
Fig. 8 is the inner support of the invention provided, the structural representation of the mesh arrangement of support arm.
Icon：100- takes bolt support；110- support arms；The near-ends of 111- first converge silk；120- inner supports；121-Second near-end converges silk；130- distal ends convergence silk；200- distal ends fixing end；300- the first near-end fixing ends；310- ring-typesStructure；400- the second near-end fixing ends；500- control lever；600- stabilization filaments termination.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementationExample is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skillThe every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely toBe easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second "," the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phaseEven ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；CanTo be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke YishiThe connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at thisConcrete meaning in invention.
The present invention is described in further detail below by specific embodiment and with reference to accompanying drawing.
Concrete structure is as Figure 1-Figure 8.A kind of the first signal for taking bolt device and control lever that Fig. 1 provides for the present inventionFigure；Fig. 2 a kind of takes bolt device and the second schematic diagram of control lever for what the present invention was provided；The first shape that Fig. 3 provides for the present inventionConverge the schematic diagram of silk in the distal end of formula；Converge the schematic diagram of silk in the distal end for second of form that Fig. 4 provides for the present invention；Fig. 5 isConverge the schematic diagram of silk in the distal end for the third form that the present invention is provided；Fig. 6 for the present invention provide the first near-end convergence silk withThe schematic diagram of the first combination of the second near-end convergence silk；Fig. 7 converges silk and second for the first near-end that the present invention is providedThe schematic diagram of second of combination of near-end convergence silk；Fig. 8 be the present invention provide inner support, support arm mesh arrangementStructural representation.
One kind that the present embodiment is provided takes bolt device to include distal end fixing end 200, the first near-end fixing end 300, the second near-endFixing end 400 and take bolt support 100；Bolt support 100 is taken to include inner support 120 and support arm 110, inner support 120 and outer branchFrame 110 is connected as one at distal end fixing end 200；The near-end of support arm 110 is fixedly connected with the first near-end fixing end 300；The near-end of inner support 120 is fixedly connected with the second near-end fixing end 400；Second near-end fixing end 400 and the first near-end fixing endIt is slidably connected between 300 so that inner support 120 can be moved relative to support arm 110.
It is of the prior art to take bolt device be protected to taking bolt support 100 to be adjusted, and without distal end, so as to take boltDuring be not easy capture thrombus, cause thrombus to be difficult to take out；And the embolus come off during bolt is taken easily causes secondary boltPlug.In order to solve the problem, present embodiments provide it is a kind of efficiently take bolt take bolt device, what this took bolt device takes bolt support 100 to wrapInner support 120 and support arm 110 are included, and both link together in far-end, relative can be slided between the two in proximal end,So as to adjust the position of inner support 120, and then change the mutual cooperation relation of inner support 120 and support arm 110, be conducive toThrombus is firmly captured, and this take bolt device be provided with distal end protector can anti-tampon escape.
Specifically, inner support 120 is connected as one with support arm 110 at distal end fixing end 200, and in proximal end, outer branchFrame 110 is fixedly connected with the first near-end fixing end 300, and inner support 120 is fixedly connected with the second near-end fixing end 400, and secondNear-end fixing end 400 is slidably connected with the first near-end fixing end 300 so that the near-end of inner support 120 and the near-end of support arm 110Relative position can change, so as to adjust the relativeness and mutual cooperation relation of inner support 120 and support arm 110,And then change the intervening portion relation of inner support 120 and mesh on support arm 110, to reach the purpose for firmly capturing thrombus.
The present embodiment provide the use process for taking bolt device be：Blood vessel where guiding catheter is delivered into thrombus, passes through guidingConduit delivers to delivery conduit the distal end of thrombus, then bolt device will be taken to be sent to by delivery conduit at thrombus, fixed to live to control seal wireDelivery conduit is withdrawn, now takes bolt device to deploy under natural resiliency effect, and is fitted with vascular wall, then pulls control lever to driveSecond near-end fixing end 400 is moved, and drives the first near-end fixing end 300 to move by the second near-end fixing end 400, so thatThe relative position relation of inner support 120 and support arm 110 changes, so as to pass through the mutual of inner support 120 and support arm 110With the use of can firmly capture thrombus, finally the thrombus for taking bolt device and capture is taken out from blood vessel, to complete to take bolt mistakeJourney.
What the present embodiment was provided takes bolt device simple to operate, small volume, it is adaptable to which human body all kinds of blood vessels take bolt process, fromAnd it is no longer influenced by the limitation of volume；Also, this takes bolt device to make by the relative movement and cooperation of inner support 120 and support arm 110With so as to which thrombus is firmly captured, and distal end protector effectively alleviates the problem of thrombus is escaped, and substantially increases bloodThe success rate of bolt capture, is conducive to the thrombus treatment of patient.
It should be noted that as shown in figure 8, under original state, the width of mesh on inner support 120 and support arm 110 isIdentical, and be sine bellows grid, alternatively, the shape of mesh can also be other shapes, inner support 120 and outer branchSine bellows grid on frame 110 is interlaced, and ideally the grid of inner support 120 and support arm 110 is mutually divided intoThe a quarter of full size size, therefore inner support 120 and support arm 110 need larger eyed structure, are easy to thrombus to inlayEnter in support mesh and captured；Also, when inner support 120 relative to moved with support arm 110 when, inner support 120 and outer branchMesh staggered pattern on frame 110 changes, and then be more beneficial in the mesh that thrombus is embedded on inner support 120,Or in the mesh on support arm 110 or in inner support 120 and the interlaced mesh of support arm 110, be more beneficial for bloodThe capture of bolt.It is pointed out that the mesh of the mesh of inner support 120 and support arm 110 is staggered, and it is laser engravingOr the grid closed loop configuration of welding, and the area of mesh is 10-80mm2。
In order to realize that inner support 120 can be moved relative to support arm 110, the length dimension of inner support 120 need to be less than outerThe length dimension of support 110；Specifically, setting cyclic structure at the first near-end fixing end 300 being connected with support arm 110310, accordingly, the setting control lever 500 at the second near-end fixing end 400 being connected with inner support 120, and the energy of control lever 500Enough penetrate into cyclic structure 310, and can be slided in cyclic structure 310；Specific operation process is：Control lever 500 is pulled,And driving inner support 120 to produce movement relative to support arm 110, during this, the width of mesh on inner support 120 becomesChange, and be used in conjunction with each other with the mesh on support arm 110, thrombus is realized jointly and captured.Therefore, the length of inner support 120Size need to be less than the length dimension of support arm 110.It should be noted that in the case of original state and without external force constraint, it is interiorSupport 120 can compare support arm with the cross sectional dimensions of support arm 110 with identical or inner support 120 cross sectional dimensions110 cross sectional dimensions is bigger, is defined by ensureing that both interlaced can be brought into close contact arrangement, further increases thrombus and catchThe efficiency obtained, and distal end protector can anti-tampon escape.
In the optional technical scheme of the present embodiment, the proximal end of support arm 110 is provided with least one and cyclic structure 310The first near-end convergence silk 111 of connection；The proximal end of inner support 120 is provided with least one and is connected with the end of control lever 500Second near-end converges silk 121；First near-end converges silk 111 and is correspondingly arranged with the second near-end convergence silk 121.
As shown in fig. 6, the proximal end of support arm 110 and inner support 120 is respectively arranged with the first near-end convergence silk 111Silk 121 is converged with the second near-end, and the first near-end convergence silk 111 is oppositely arranged with the second near-end convergence silk 121, wherein, firstNear-end convergence silk 111 is connected with cyclic structure 310, so that support arm 110 be linked together with cyclic structure 310；Second is nearEnd convergence silk 121 is connected with the end of control lever 500, so as to inner support 120 be linked together with control lever 500, so justInner support 120 can be driven relative to support arm 110 by pulling control lever 500 and further converging silk 121 by the second near-endIt is mobile.It should be noted that when the first near-end convergence silk 111 and second near-end convergence silk 121 is respectively provided with one, in blood vessel ratioNet is conducive to take thrombus in the case of relatively straight, but synchronism is poor, and the supportive of inner support 120 and support arm 110 is poor, andThe vascular wall effect that reclined during the turning opening of blood vessel is bad, is unfavorable for turning net and takes thrombus.
As shown in fig. 7, the proximal end of support arm 110 and inner support 120 is respectively arranged with two first near-end convergence silks 111Silk 121 is converged with the second near-end, and the angle of the first near-end convergence silk 111 and second near-end convergence silk 121 is 90 degree, is so setPut and make it that the supportive of inner support 120 and support arm 110 is preferable, synchronism is preferable, but when taking bolt, due to the convergence of the first near-endThe near-end convergence silk 121 of silk 111 and second is closeer, is unfavorable for pocket and takes thrombus, i.e., when thrombus volume is larger, is unfavorable for pocket and enters takingIn bolt support 100, when thrombus is more loose, then broken thrombus is easily hung, easily cause the blocking of end tiny blood vessels.
In addition to above-mentioned set-up mode, the first near-end convergence silk 111 is set to one, and the second near-end convergence silk 121 is setTwo are set to, or on the contrary, so, the balance for being likely to result in support is poor, two kinds of near-end convergence silks are specifically usedSeveral, how to set and be required to be selected by experimental check.
In the optional technical scheme of the present embodiment, the far-end of support arm 110 and inner support 120 is interlaced to be collectively formingDistal end convergence silk 130, distal end convergence silk 130 is fixedly connected with distal end fixing end 200.
Further, the distal end convergence densely arranged composition distal end protector of silk 130, and with distal end fixing end 200 in songLine is connected, and makes to take bolt support 100 and distal end protector to turn into an entirety；Macromolecule with holes is provided with the protector of distal endTunica fibrosa, or the network structure being woven into by wire, polymeric material silk.
Specifically, inner support 120 and support arm 110 are more intensive in the distal end convergence silk 130 that far-end is formed, and with it is remoteFixing end 200 is curved links together at end, so that with certain elasticity, the distal end of bolt support 100 is taken while can also increaseThe reticular density at place, plays distal end protective action, can be escaped to prevent tampon.Due to taking bolt device distal end convergence silk 130 by songLine is connected, so spring effect can be produced, and inner support 120 and support arm 110 length in assembling are not in bigger difference,Therefore, the mesh in moving process of inner support 120 is not in significant change.
It is pointed out that the first near-end convergence silk 111, the second near-end convergence silk 121 and distal end convergence silk 130 are usedWire, or other materials.
In the optional technical scheme of the present embodiment, distal end fixing end 200, the first near-end fixing end 300, the second near-end are fixedEnd 400 and take in bolt support 100 at least more than one be provided with the developing mark for playing positioning action, inner support 120 or outerSupport 110 may also set up development silk in order to which doctor understands the position of each structure.
In the optional technical scheme of the present embodiment, stabilization filament termination 600 is provided with distal end fixing end 200, the stabilization filamentTermination 600 is used to prevent distal end fixing end 200 from scratching blood vessel.
One kind that the present embodiment is provided takes pin device to include taking bolt device and prepackage sheath, delivery conduit and control lever 500；TakeThe near-end of bolt device is connected with control lever 500, and mounted takes bolt device to hold intrathecal into prepackage by pressure with control lever 500；By pre-Dress sheath can make to take bolt device to enter delivery conduit, and then reach thrombus position by delivery conduit.
The present embodiment provide the specific operation process for taking pin device be：Punctured first from femoral artery or arteria brachialis and put sheathTo angiogram in order to determine the position of Intravascular Thrombus, blood vessel where guiding catheter then is delivered into thrombus passes through guidingConduit delivers to delivery conduit the distal end of thrombus, and bolt device then will be taken to be reached by delivery conduit at thrombus, fixed to live to control seal wireDelivery conduit is withdrawn, now takes bolt device to deploy under natural resiliency effect, and is fitted with vascular wall, control lever 500 is then pulled,So as to change the relative position of the near-end of inner support 120 and the near-end of support arm 110, and then change the mesh on inner support 120Intervening portion relation, so the thrombus being embedded into mesh can be captured, continue control lever 500 of pulling back, bolt support 100 will be takenAnd thrombus is pulled in guiding catheter in the lump, while with large syringe pumpback guiding catheter, to prevent small thrombus from escaping, mostPin device and thrombus is taken to pull out outside blood vessel at last.
What the present invention was provided takes pin device identical with the above-mentioned technique effect for taking bolt device to have and technical advantage, herein notRepeat again.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extentThe present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according toThe technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are enteredRow equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technologyThe scope of scheme.