Laparoscopic suturing instrument with multi-drive sequenced transmission
US9585655B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2012 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Sep 13, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2929
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus comprises a body, a shaft assembly, an end effector assembly, and a drive assembly. The body may include a handpiece with an integral motor. The shaft assembly may include two pairs of concentric shafts. The end effector assembly may include arms that selectively grasp and release a suturing needle. The drive assembly is operable to drive the end effector assembly via the shaft assembly. The drive assembly is operable to convert a single rotary input into at least two rotary outputs. In some versions, the drive assembly comprises a plurality of shaft assemblies that include an input shaft, a first output shaft, a second output shaft, and a third output shaft. The drive assembly is operable to selectively rotate and hold the shaft assemblies in accordance with a predetermined sequence, such as to perform tissue suturing through a trocar in a minimally invasive surgical procedure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.