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US 12,359,696 B2Granted
Stapler with composite cardan and screw drive
AssigneeIntuitive Surgical Operations, Inc.
InventorMatthew A. Wixey
Life of this patent
Estimating the term…
Abstract
A universal double joint is provided comprising: a drive rotatable bearing having a first spherical surface formed of a plastic material; a proximal metal cross pin configured to receive an imparted drive force and to impart the imparted drive force to the first rotatable bearing; a driven rotatable bearing having a second spherical surface formed of a plastic material; and a distal metal cross pin configured to receive the imparted drive force and to impart the imparted drive force to the second rotatable bearing.
Claims18
A universal double joint comprising:
- a drive rotatable bearing having a first surface and comprising a proximal transverse bore;
- a proximal cross pin configured to receive an imparted drive force and to impart the imparted drive force to the drive rotatable bearing, wherein the proximal cross pin extends within the proximal transverse bore such that the drive rotatable bearing is rotatably mounted thereon;
- a drive shaft configured to receive the imparted force and including a drive clevis;
- a driven rotatable bearing having a second spherical surface and comprising a distal transverse bore;
- a distal metal cross pin configured to receive the imparted drive force and to impart the imparted drive force to the driven rotatable bearing, wherein the distal cross pin extends within the distal transverse bore such that the driven rotatable bearing is rotatably mounted thereon;
- and
- a driven shaft including a driven clevis.
4 more elements
A universal double joint comprising:
- a sleeve member defining a proximal end opening and a distal end opening;
- a drive rotatable bearing including a first partially spherical outer surface portion sized to fit within the proximal end opening for smooth partial rotation therein and including a first axial engagement structure and a proximal transverse bore;
- a proximal cross pin configured to receive an imparted drive force and to impart the imparted drive force to the sleeve member, and to the drive rotatable bearing, wherein the proximal cross pin extends within the proximal transverse bore such that the drive rotatable bearing is rotatably mounted thereon;
- a drive shaft configured to receive the imparted force and including a drive clevis;
- a driven rotatable bearing formed of a plastic material and including a partially second spherical outer surface portion sized to fit within the distal end opening for smooth partial rotation therein and including a second engagement structure and a distal transverse bore;
- a distal cross pin configured to receive the imparted drive force and to impart the imparted drive force to the sleeve member and to the driven rotatable bearing, wherein the distal cross pin extends within the distal transverse bore such that the driven rotatable bearing is rotatably mounted thereon;
- and
- a driven shaft including a driven clevis;
- wherein the first and second axial engagement structures are configured to engage each other.
6 more elements
A universal double joint comprising:
- a first rotatable bearing having a first surface;
- a proximal cross pin configured to receive an imparted drive force and to impart the imparted drive force to the first rotatable bearing;
- a first shaft configured to receive the imparted force and including a first clevis;
- a second rotatable bearing having a second surface;
- a distal cross pin configured to receive the imparted drive force and to impart the imparted drive force to the second rotatable bearing, wherein the distal cross pin is mounted between opposed arms of the second clevis and the first rotatable bearing is mounted for rotation about the proximal cross pin;
- and
- a second shaft including a second clevis.
4 more elements
Dependencies are inferred from the claim text.