04485816 is referenced by 806 patents and cites 7 patents.

The staples are made of a material having the intrinsic property of shape memory, such that heating the material above a certain temperature known as the transition temperature causes any deformation introduced at temperatures below the transition temperature to be reversed, and the staple recovers fully to its shape prior to the deformation. By forming the staple into any desired closed position at a temperature above the transition temperature and then cooling the staple below the transition temperature before deforming it into an open position, the resulting staple will revert to its closed position when it is subsequently reheated above the transition temperature. Consequently, the staple can be used for surgical suturing by merely positioning it in contact with the tissues to be sutured and heating it sufficiently to cause it to penetrate and clinch the tissues together. A low-cost, lightweight surgical staple applicator utilizes a battery for heating the staples to produce closure, and is sterilizable by gamma radiation.

Title
Shape-memory surgical staple apparatus and method for use in surgical suturing
Application Number
6/277112
Publication Number
4485816
Application Date
June 25, 1981
Publication Date
December 4, 1984
Inventor
John F Krumme
Woodside
CA, US
Agent
Howard L Rose
Assignee
Alchemia
CA, US
IPC
A61B 17/12
A61B 17/08
A61B 17/04
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