Latching mechanism for forceps
First Claim
1. A surgical instrument comprising:
- a slidable shaft having a proximal and a distal end;
a housing coupled to the shaft;
an actuation assembly having a first lever and a second lever, each of the first and second levers being pivotably connected to the shaft;
an end effector assembly coupled to the distal end of the shaft, the end effector assembly having a pair of opposing jaw members;
a drive rod disposed within the shaft and coupled to a housing connection, the drive rod being operable by the actuation assembly to actuate the opposing jaw members between open and closed positions; and
a latching mechanism associated with the actuation assembly and drive rod for maintaining the jaw members in the closed position, the latching mechanism including a biasing member housed between a spring collar and a spring mandrel.
1 Assignment
0 Petitions
Accused Products
Abstract
The present disclosure relates to a surgical instrument that includes a slidable shaft having a proximal and a distal end and a housing coupled to the shaft. The instrument includes an actuation assembly having a first lever and a second lever, each of the first and second levers being pivotably connected to the shaft. The instrument further includes an end effector assembly coupled to the distal end of the shaft, the end effector assembly having a pair of opposing jaw members. The instrument may have a drive rod disposed within the shaft and connected to a housing connection, the drive rod being operable by the actuation assembly to actuate the opposing jaw members between open and closed positions. A latching mechanism is operatively associated with the actuation assembly and drive rod for maintaining the jaw members in the closed position, the latching mechanism including a biasing member housed between a spring collar and a spring mandrel.
-
Citations
20 Claims
-
1. A surgical instrument comprising:
-
a slidable shaft having a proximal and a distal end;
a housing coupled to the shaft;
an actuation assembly having a first lever and a second lever, each of the first and second levers being pivotably connected to the shaft;
an end effector assembly coupled to the distal end of the shaft, the end effector assembly having a pair of opposing jaw members;
a drive rod disposed within the shaft and coupled to a housing connection, the drive rod being operable by the actuation assembly to actuate the opposing jaw members between open and closed positions; and
a latching mechanism associated with the actuation assembly and drive rod for maintaining the jaw members in the closed position, the latching mechanism including a biasing member housed between a spring collar and a spring mandrel. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A surgical instrument comprising:
-
a shaft having a proximal and a distal end and a drive rod slidably disposed therein;
a housing coupled to the shaft;
an actuation assembly having a first lever and a second lever, each of the first and second levers being pivotably connected to the drive rod;
an end effector assembly coupled to the distal end of the shaft, the end effector assembly having a pair of opposing jaw members; and
a latching mechanism associated with the actuation assembly for maintaining the jaw members in the closed position, the latching mechanism including a first link and a second link, the second link having a lock/release lever configured to lock the actuation assembly. - View Dependent Claims (8, 9, 10, 11, 12, 13)
-
-
14. A surgical instrument comprising:
-
a drive rod having a proximal end and a distal end;
a spring mandrel connected to the proximal end of the drive rod, the mandrel having a collar slidably disposed thereon;
an actuation assembly having a first lever and a second lever, each lever being pivotably connected to a fixed surface;
a first link and a second link each having a distal end pivotally connected to the first and second levers respectively and a proximal end connected to the collar; and
an end effector assembly coupled to the distal end of the drive rod, the end effector assembly having a pair of opposing jaw members. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification