Ultrasonic biopsy endoscope with extensible guide sheath
US4763662A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 27, 1986 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | May 27, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/3413
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ultrasonic diagnostic apparatus includes an operation section and an insertion section adapted to be inserted into the body cavity of a human being. The insertion section has an insertion channel extending therethrough. A guide sheath is slidably inserted into the channel and has a distal end portion pivotally supported on the distal end of the insertion section by link arms. An ultrasonic probe is fixed to the distal end of the insertion section. An image guide extends through the sheath to the end face thereof. A guide channel for guiding a puncture needle extends through the sheath and opens at the end face thereof. When being pushed out from the insertion section the distal end portion of the sheath is pivotted to change its direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.