Endoscopic cutting forceps with jaw clamp lever latching mechanism

Patent metadata

Field	Value
Publication number	US-9851741-B2
Application number	US-201514706146-A
Country	US
Kind code	B2
Filing date	May 7, 2015
Priority date	May 16, 2014
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

A lever latching system comprising: a housing; a lever having a latch pin fixedly mounted to the lever, the lever being movably mounted to the housing so that the latch pin moves in an arc; and a latch plate movably mounted to the housing for linear movement with respect to the housing, the latch plate comprising a labyrinth for receiving the latch pin.

First claim

What is claimed is:

1. A latching system comprising:
a first unit;
a second unit comprising a latch pin, said second unit being movably mounted to said first unit so that said latch pin moves in a prescribed motion;
a selector plate movably mounted to said first unit; and
a latch plate comprising a labyrinth for selectively receiving said latch pin, said latch plate being movably mounted to said selector plate;
wherein said latch plate moves linearly relative to said selector plate; and
wherein said prescribed motion is linear motion.

2. A latching system comprising:
a first member;
a second member comprising a latch pin, said second member being movably mounted to said first member so that said latch pin moves in a prescribed motion;
a selector plate movably mounted to said first member;
a latch plate movably mounted to said selector plate and comprising a labyrinth for selectively receiving said latch pin;
a spring secured to said selector plate and engaging said latch plate for biasing said latch plate with respect to said selector plate;
wherein said selector plate moves said latch plate between an engaged position wherein said labyrinth intersects said prescribed motion and a disengaged position wherein said labyrinth does not intersect said prescribed motion; and
wherein said prescribed motion is linear motion.

3. A latching system comprising:
a first unit;
a second unit comprising a latch pin, said second unit being movably mounted to said first unit so that said latch pin moves in a prescribed motion;
a selector plate movably mounted to said first unit; and
a latch plate comprising a labyrinth for selectively receiving said latch pin, said latch plate being movably mounted to said selector plate;
wherein said latch plate comprises an integral spring for biasing said latch plate relative to said selector plate; and
wherein said prescribed motion is linear motion.

Assignees

• Gyrus Acmi Inc

Inventors

• Lamser Dennis G
• Mensch John R
• Moe Riyad

Classifications

• A61B2017/2946

  Locking means · CPC title

• A61B18/1447

  wherein sliding surfaces cause opening/closing of the end effectors · CPC title

• A61B2018/00916

  with means for switching or controlling the main function of the instrument or device · CPC title

• A61B2018/1455

  having a moving blade for cutting tissue grasped by the jaws · CPC title

• A61B2018/00607

  Coagulation and cutting with the same instrument · CPC title