Invention Grant
- Patent Title: Low friction cannula seals for minimally invasive robotic surgery
- Patent Title (中): 用于微创机器人手术的低摩擦套管密封
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Application No.: US13769036Application Date: 2013-02-15
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Publication No.: US09295523B2Publication Date: 2016-03-29
- Inventor: Stephen J. Blumenkranz , Bruce Michael Schena , Randal Goldberg
- Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
- Applicant Address: US CA Sunnyvale
- Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
- Current Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
- Current Assignee Address: US CA Sunnyvale
- Main IPC: A61B19/00
- IPC: A61B19/00 ; A61B17/34

Abstract:
Embodiments of a cannula seal are disclosed. In some embodiments, a cannula seal can include a base portion that engages with a cannula; and a seal portion integrally formed with the base portion that slidebly engages with an instrument shaft such that an insertion frictional force between the seal portion and the instrument shaft for insertion of the instrument shaft is symmetrical and substantially equal with a retraction frictional force.
Public/Granted literature
- US20130211423A1 LOW FRICTION CANNULA SEALS FOR MINIMALLY INVASIVE ROBOTIC SURGERY Public/Granted day:2013-08-15
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