Spiral needle for endoscopic surgery
US5935138A · kind A · utility
166Cited by
10References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 24, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Sep 24, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/06076
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A needle for endoscopic surgery is curved into an arc of more than 180.degree. and twisted, so that it forms a part of a spiral, with a lateral offset between the needle point and barrel. The needle is sized to fit through a 10 mm trocar and is also blackened, to improve its visibility in a bloody field. The needle curvature is preferably not constant over its entire length, so that different sections have different radii of curvature. The needle is particularly well adapted for performing laporascopically a procedure (Burch Colposuspension) that is used to treat female stress incontinence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.