The content of the invention
In order to provide Permanent implantation, be temporarily implanted, temporarily implantation three have both the product of property, and when reducing interim useThe risk that patient body's exterior part causes infection to patient is retained in, technical solution of the invention is as follows：One kind is provided with inverseThe recyclable Caval vein thrombus filter of hour hands screw thread detachable metal silk.The present invention can be conveyed under actinoscopy X by productConduit accurately discharges support to patient's internal target site, according to whether retaining wire in vivo after release, is chosen as foreverIt is implanted into, is temporarily implanted long, implantation temporarily is used.Turn clockwise delivery hose after release, can disconnect delivery conduit and supportHuman body is withdrawn from, one, wire is left and is connected with support, wire other end is fixed under patient's body surface by patient's point of puncture.Wire is taken out in operation after patient symptom is eliminated, then reclaims sheath by wire insertion, then reclaims wire along sheath is reclaimedAnd support, can not use recovery catching device can withdraw from human body in the lump by filter holder.Support is reclaimed using the method, not onlyPatient's infection risk can be reduced, the surgery cost for being reused patient is implanted into product temporarily when and reclaiming catching device can be also reduced.
The present invention is by filter holder, recovery wire, delivery conduit, wire handle and annex wire containing tube fivePart is constituted.
Filter holder fixes thorn, fork-shaped screen pack by front end nut, sine wave screen pack, balancing pole, blood vessel, reclaims and hangHook, hook end nut composition.
Wire is reclaimed by wire connecting bolt, wire fixed core, wire fixing bolt, bolt counterclockwise, goldBelong to silk composition.
Delivery conduit is made up of nut counterclockwise, bushing pipe, corrugated hose.
Filter holder front end nut and the nut clockwise that hook end nut is identical size, by nickel-titanium alloy material plusWork is formed.
Filter holder sine wave screen pack, balancing pole, blood vessel fix thorn, fork-shaped screen pack, reclaim hook by NitinolPipe is integrally formed through laser engraving.
Blood vessel is fixed thorn and strutted automatically when product expand, is opened into about 45 degree of angle braces, during product contraction automatically and stake bodyIt is integrally combined.
Reclaim hook by laser cutting is formed one parallel to the product longitudinal axis notch features, be easy to arrest ring and capture, be beneficial toIt is difficult for drop-off during Product recycling.
Wire connecting bolt is processed by stainless steel material or nickel-titanium alloy material, and one end is machined with outer spiral shell clockwiseLine, the bolt other end is processed into hollow and is machined with internal thread clockwise.
Wire fixed core is processed by stainless steel material or nickel-titanium alloy material, and center is hollow, and the other end is silkBe open shape, and external diameter is less than wire connecting bolt minor diameter of internal thread clockwise.
Wire fixing bolt is processed by stainless steel material or Nitinol, and one end is machined with external screw thread clockwise,Another end surfaces are smooth.
Bolt counterclockwise is processed by stainless steel material or Nitinol, and end surface is smooth, and the other end is processed into inverseHour hands external screw thread.
Nut counterclockwise is processed by stainless steel material or Nitinol, and internal thread counterclockwise is processed into one end, anotherEnd surfaces are smooth.
Wire is made up of 0.1-0.3mm nitinol alloy wires, and wire one end is processed into linearly for implantation human body, anotherEnd, which is processed under body temperature environment, can be shrunk to bulk automatically, and be in line shape in non-human body temperature environment.
Corrugated hose is by stainless steel tube or Nitinol pipe through laser engraving into spiral hollow out tubular structure.
Wire containing tube is made up of PTFE high polymer materials.
Wire handle is made up of handle head, handle core, handle tail, and three parts are formed by PE material injections.
Filter holder front end nut of the present invention, hook end nut are connected as one through laser welding and stake body.
The connection of wire and wire connecting bolt：Wire is first penetrated into wire fixed core, and fills in wireConnecting bolt hollow end, then wire fixing bolt is penetrated from wire tail end, and screwed with wire connecting bolt, screwBolt counterclockwise is penetrated from wire tail end again afterwards（Bolt thread counterclockwise is outwardly）, extremely it is close to wire connecting bolt,Wire fixing bolt is set all to be wrapped, it is most firm through laser welding afterwards.
Delivery conduit is connected：Delivery conduit is counterclockwise, and nut, bushing pipe and corrugated hose are formed through laser welding.
Filter holder hook end nut of the present invention is that clockwise thread is connected with wire connecting bolt.
Wire bolt counterclockwise of the present invention is that anti-clockwise thread is connected with delivery conduit nut counterclockwise.
When the present invention does Permanent implantation, only need to support release after rotate counterclockwise delivery conduit, just can be by delivery conduitDisconnected with recovery wire with filter holder and withdraw from human body, be retained in support in patient body after disconnection.
, can be by delivery conduit and recovery after rotate counterclockwise delivery conduit after support release when the present invention is temporarily implantedWire disconnects with filter holder to be recalled delivery conduit and reclaims wire again, and catching device is used after filter stenter to implant expiresArrest filter holder and reclaim hook just recoverable support.
When the present invention does interim implantation, delivery conduit spiral shell counterclockwise can be made after the delivery conduit that turned clockwise after support releaseIt is female to be disconnected with wire bolt counterclockwise, leave recovery wire and be connected with product support, the wire stayed in outside human body passes throughAfter body temperature environmental treatment, bulk is shrunk to, then metal clusters are put into wire containing tube, again by wire after storageUnder containing tube implantation patient skin.After patient symptom improves, wire containing tube is taken out from skin lower cut, wire is taken out,Sheath will be reclaimed again（The present invention does not provide the product）Filter holder is withstood along along wire insertion body, wire handle is connectedWire tail end, internal support can be reclaimed by withdrawing wire along recovery sheath, eliminated the need for catching device and arrested operation.
The detachable metal silk structure of the present invention and the effective benefit of the delivery conduit with anti-clockwise thread are, of the inventionPermanent implantation can not only be done, be temporarily implanted, three class products are implanted into temporarily are used, can also as interim implantation product in use,Substantially reduce the infected risk of patient.
Brief description of the drawings
Fig. 1 is product overall structure diagram one.
Fig. 2 is product overall structure diagram two.
Fig. 3 is product filter holder structural representation.
Fig. 4 is product filter holder right view.
Fig. 5 is Product recycling metal wire structure schematic diagram.
Fig. 6 is Product recycling wire structural representation under body temperature environment.
Fig. 7 is product delivery conduit structural representation.
Fig. 8 is resultant metal silk handle arrangement schematic diagram one.
Fig. 9 is resultant metal silk containing tube structural representation.
Figure 10 is resultant metal silk handle arrangement schematic diagram two.
Figure 11 is wire connecting bolt structural representation.
Figure 12 is wire fixed core structural representation.
Figure 13 is wire fixed core right view.
Figure 14 is wire fixing bolt structural representation.
Figure 15 is wire bolt arrangement schematic diagram counterclockwise.
Figure 16 is delivery conduit nut structure schematic diagram counterclockwise.
Figure 17 is delivery conduit liner tube structure schematic diagram.
Figure 18 is delivery conduit corrugated hose structural representation.
Embodiment
Below according to explanation accompanying drawing, the invention will be further described：
The present invention is as shown in Fig. 2 by filter holder（Fig. 3）, reclaim wire（Fig. 5）, delivery conduit（Fig. 7）, wire handle（Fig. 8）, annex wire containing tube（Fig. 9）Five parts are constituted.
Filter holder is fixed thorn 4, fork-shaped screen pack 5 by front end nut 1, sine wave screen pack 2, balancing pole 3, blood vessel, returnedHook 6, hook end nut 7 is received to constitute.Sine wave screen pack 2, balancing pole 3, blood vessel fix thorn 4, fork-shaped screen pack 5, reclaim and hangHook 6 is integrally formed by Nitinol pipe through laser engraving, and front end nut 1, hook end nut 7 connect through laser welding and stake bodyConnect.
Wire is reclaimed by wire connecting bolt 8, wire fixed core 9, wire fixing bolt 10, bolt counterclockwise11st, wire 15 is constituted.Wire 15 is first penetrated wire fixed core 9 by wire when connecting, and fills in wire connection spiral shellThe hollow end of bolt 8, then wire fixing bolt 10 is penetrated from the tail end of wire 15, and screwed with wire connecting bolt 8, screwBolt 11 counterclockwise is penetrated from the tail end of wire 15 again afterwards（The screw thread of bolt 11 counterclockwise is outwardly）, extremely with wire connecting bolt8 are close to, and wire fixing bolt 10 is all wrapped, most firm through laser welding afterwards.
Delivery conduit is made up of nut 12 counterclockwise, bushing pipe 13, corrugated hose 14, and three forms through laser welding.
Wire handle handle head 17, handle core 18, handle tail 19 by being made up of（See Figure 10）, three parts are by PE materialsIt is molded.
Invention hook end nut 7 is that clockwise thread is connected with wire connecting bolt 8.
Wire bolt 11 counterclockwise of the present invention is that anti-clockwise thread is connected with delivery conduit nut counterclockwise 12.
When the present invention does Permanent implantation, only need to support release after rotate counterclockwise delivery conduit, just can be by delivery conduitDisconnected with recovery wire with filter holder and withdraw from human body, be retained in support in patient body after disconnection.
, can be by delivery conduit and recovery after rotate counterclockwise delivery conduit after support release when the present invention is temporarily implantedWire disconnects with filter holder to be recalled delivery conduit and reclaims wire again, and catching device is used after filter stenter to implant expiresArrest filter holder and reclaim the just recoverable support of hook 6.
When the present invention does interim implantation, delivery conduit spiral shell counterclockwise can be made after the delivery conduit that turned clockwise after support releaseMother 12 disconnects with wire bolt counterclockwise 11, leaves recovery wire and is connected with product support, the wire stayed in outside human body15, after body temperature environmental treatment, it is shrunk to bulk（See Fig. 6）, then put metal clusters into wire containing tube（Fig. 9）In, wire containing tube is implanted under patient skin again after storage.After patient symptom improves, wire is taken out from skin lower cutContaining tube（Fig. 9）, wire is taken out, then sheath will be reclaimed（The present invention does not provide the product）Withstood along along the insertion body of wire 15Filter holder（Fig. 3）, by wire handle（Fig. 8）The tail end of wire 15 is connected, withdrawing wire along recovery sheath can be by bodyInner support is reclaimed, and is eliminated the need for catching device and is arrested operation.
More typical example in the present invention is the foregoing is only, the limitation present invention is not used in.It is all to change on the basis of the present inventionEnter and the example that extends is within protection scope of the present invention.