Incision device
US5769866A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 1997 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | May 14, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/036
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An incision device 10 is provided for precisely initiating and controlling the depth of an incision I in an artery A, such as a coronary artery A of a heart H, particularly while the heart H is beating. A handle 12 is provided for grasping by a surgeon and from which an arm 40 adjustably extends. A blade 70 is located at a free end 44 of the arm 40. A front depth control pin 80 and a rear depth control pin 90 are oriented parallel to each other and perpendicular to a plane in which the arm 40 and handle 12 are oriented and perpendicular to a cutting plane in which the cutting edge 74 of the blade 70 is oriented. The two depth control pins 80,90 together define a depth control plane with the cutting edge 74 of the blade 70 extending below the depth control plane to a desired maximum depth. The blade 70 is spaced sufficiently away from the front depth control pin 80 that the front depth control pin 80 can be located adjacent the artery A before the incision I is initiated. The incision device 10 can then be rotated, causing a tip 72 of the blase 70 to pierce the top wall T of the artery A while the front depth control pin 80 steadies the blade 70 and incision device 10, relative to t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.