Laparoscopic suturing instrument with dual-action needle graspers
US8702732B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2011 |
| Grant date | Apr 22, 2014 |
| Priority date | — |
| Expiry date | Jan 5, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2944
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A suture needle driving instrument comprises a shaft, an end effector, and a grasping actuation assembly. The end effector is located at the distal end of the shaft and includes a pair of grasping arms. Each grasping arm comprises a respective pair of jaws. Each pair of jaws is operable to cooperate to grasp and release a suture needle. The grasping actuation assembly is operable to drive one jaw of each pair in one direction while simultaneously driving the other jaw of the pair in an opposite direction, to selectively grasp or release the suture needle. The actuation assembly may include a drive shaft having separate threaded regions with opposing pitch. The end effector is further operable to pass the needle from one arm to the other arm during a suturing procedure. The instrument may be used through a trocar during minimally invasive surgery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.