Shape memory effect surgical needles
August 29, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod for implanting and subsequently removing mechanical connecting elements from living tissue Blood clot filter Shape-memory surgical staple apparatus and method for use in surgical suturing ARthroscopic instrumentation and method Flexible guide having two-way shape memory alloy Sutures utilizing shape memory alloys Endoscopic suturing device and related method and suture Method of inserting medical devices incorporating SIM alloy elements Catheter guidewire with pseudo elastic shape memory alloy Patent #: 5069226 InventorsAssigneeApplicationNo. 751903 filed on 08/29/1991US Classes:606/222, Suturing needle606/78, Shape memory material606/139Suture, ligature, elastic band or clip applierExaminersPrimary: Pellegrino, Stephen C.Assistant: Jackson, Gary Attorney, Agent or FirmInternational ClassA61B 017/00AbstractSurgical needles are fabricated from a shape memory alloy. The alloy has a low temperature state, in which the needle is formable into an elongated shape to pass through an elongated tube, and a high temperature state, in which the needle forms an arc. The needle is particularly adapted for use in endoscopic surgery. A needle that has a remembered curved shape is straightened and passed to a surgical site through a cannula. It is then returned to its curved shape by heating it at the surgical site. After use, it is withdrawn through the cannula.Other References
Field of SearchSuturing needleShape memory material Needle tip or body structure Filament attachment Tied, hooked, wedged or grasped Deformed Pull out or frangible By electrical or thermal application Specialized coating or material Mechanical suture or ligature applier Suturing or ligating aid or guide Heat application Tip or other heat concentration means Suture, ligature, elastic band or clip applier Mechanical memory | |
