Invention Grant
- Patent Title: Surgical extraction device for bone implant tips
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Application No.: US16032509Application Date: 2018-07-11
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Publication No.: US10966842B2Publication Date: 2021-04-06
- Inventor: Sloan Austin Kulper , Erica Ann Boles , Xinshuo Christian Fang , Ka Li Frankie Leung , Weijia William Lu
- Applicant: THE UNIVERSITY OF HONG KONG
- Applicant Address: CN Hong Kong
- Assignee: THE UNIVERSITY OF HONG KONG
- Current Assignee: THE UNIVERSITY OF HONG KONG
- Current Assignee Address: CN Hong Kong
- Agency: Saliwanchik, Lloyd & Eisenschenk
- Main IPC: A61F2/46
- IPC: A61F2/46 ; A61B17/88 ; A61B17/92 ; A61B17/00

Abstract:
Devices and methods for the removal of bone implant tips from within a bony structure in a body. The device or method includes a shaft with an internal grasping feature capable of being inserted while remaining in an un-expanded, un-deployed state. This permits a surgeon or operator to insert the device while in a small profile state, avoiding or reducing damage to adjacent bone tissue during insertion. Upon insertion of the shaft to the proper position within a patient's bone, the grasping feature may then be expanded or deployed from the distal end of the shaft by a surgeon or operator using an actuator in a handle attached to the proximal end of the shaft. Following deployment, the grasping feature may be used to manipulate and/or remove a bone implant tip from a patient's bone tissue. Embodiments of the grasping feature include one or more hooks, wires, articulating fingers, and/or net-based designs formed of metal, polymer, composite, or a combination thereof. The grasping feature may also include an adhesive-based design formed of bone cement, protein-based glue, or other adhesive material with the purpose of grasping or manipulating a bone implant tip within bone tissue.
Public/Granted literature
- US20190015220A1 SURGICAL EXTRACTION DEVICE FOR BONE IMPLANT TIPS Public/Granted day:2019-01-17
Information query
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