Biopsy needle with integrated guide pin
US6918881B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2002 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Jun 4, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/034
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A biopsy instrument for use in a biopsy gun includes a hollow outer needle defining a lumen therethrough and an inner needle slidably engaged within the lumen. The inner needle defines a cavity adjacent its distal end for receiving a tissue sample. A first hub is attached to the proximal end of the inner needle, and a second hub is attached to the proximal end of the outer needle. An elongated pin having a first end and a second end is fixedly attached to the first hub at the first end of the pin. The second end is in contact with the second hub so that the hub and pin are slideable relative to each other. A stop engagement between the second end of the pin and the second hub is configure to prevent disengagement of the needles and to maintain a specific physical relationship between the hubs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.