Photoetching process for making surgical needles
US4587202A · kind A · utility
34Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1984 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Dec 14, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Surgical needles are produced by a process which comprises the steps of: PA0 (a) coating at least one side of a metal sheet with a light sensitive photoresist; PA0 (b) exposing the photoresist with light in the image of a plurality of surgical needles, each needle having a pointed end and a suture attachment end; PA0 (c) removing the unexposed photoresist, to thereby leave in place on the metal sheet hardened photoresist in the image of a plurality of surgical needles; PA0 (d) exposing the product of step (c) to an etchant to remove metal not protected by said hardened photoresist, to thereby form a plurality of surgical needles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.