US2014236217A1PendingUtilityA1

Apparatus for deployment of micro-coil using a catheter

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Assignee: DEPUY SYNTHES PRODUCTS LLPriority: Feb 9, 2000Filed: Apr 23, 2014Published: Aug 21, 2014
Est. expiryFeb 9, 2020(expired)· nominal 20-yr term from priority
Inventors:Deepak GandhiKamal Ramzipoor
A61B 2017/1209A61F 2002/9505A61B 2018/00005A61B 17/12A61F 2002/9511A61B 17/12136A61B 17/12022A61B 2090/037A61B 2017/00477A61B 2017/12077A61B 2017/00867A61B 17/12113A61B 2017/12068A61B 17/1214
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Claims

Abstract

The apparatus for deployment of a therapeutic device such as a micro-coil detachably mounts the therapeutic device to a distal portion of a pusher member. In one embodiment, the therapeutic device is detachably mounted to the distal portion of the pusher member by a tubular collar that can be heated by a heater such as an electrical resistance coil to expand the collar and release and deploy the therapeutic device. The apparatus for deployment of a therapeutic device such as a micro-coil may also provide for a pusher member and a connector fiber for securing the therapeutic device to the pusher member. The connector fiber passes through a heater within the distal portion of the pusher member, for heating and breaking the connector fiber to release the therapeutic device when a desired placement of the therapeutic device within the vasculature is achieved.

Claims

exact text as granted — not AI-modified
1 . An apparatus for release and deployment of a therapeutic device within the vasculature of a patient, comprising:
 an elongated, flexible pusher member having an interior lumen and a distal portion;   a tubular collar detachably mounting a therapeutic device to the pusher member for placement of the therapeutic device within the vasculature, the tubular collar being configured to release the therapeutic device when heated; and   an electrical resistance heater coil disposed in the tubular collar of the pusher member for heating the tubular collar to cause the tubular collar to release the therapeutic device.   
     
     
         2 . The apparatus of  claim 1 , wherein said tubular collar is formed from a shape memory material. 
     
     
         3 . The apparatus of  claim 2 , wherein said shape memory material is a shape memory polymer. 
     
     
         4 . The apparatus of  claim 2 , wherein said shape memory material is a shape memory alloy. 
     
     
         5 . The apparatus of  claim 1 , wherein said tubular collar is formed from a thermoplastic material. 
     
     
         6 . The apparatus of  claim 1 , wherein the therapeutic device comprises a vasoocclusive device. 
     
     
         7 . The apparatus of  claim 1 , wherein the therapeutic device comprises a microcoil.

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