Grapsing forceps

• US 5,147,378 A
• Filed: 03/05/1991
• Issued: 09/15/1992
• Est. Priority Date: 03/05/1991
• Status: Expired due to Term

• Current Assignee: Mark Resources, Inc.
• Original Assignee: Mark Resources, Inc.
• Inventors: Markham, Harold
• Primary Examiner(s): Thaler, Michael H.
• Application Number:
  US07/664,778
• Time in Patent Office: 560 Days
• Field of Search: 606/205-208, 606/174, 606/170, 606/210, 606/140, 606/141, 128/751, 128/752
• US Class Current: 606/206
• CPC Class Codes: A61B 17/29 Forceps for use in minimally invasive surgery
• CPC Class Codes: A61B 17/30 Surgical pincettes without pivotal connectionsfor holding suture needles or materials A61B17/0483; wound clamps A61B17/08 ; hand-held gripping tools without pivotal connections in general B25B9/02
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/2837 with a locking ratchet
• CPC Class Codes: A61B 2017/2918 flexible handles
• CPC Class Codes: A61B 2017/2937 with flexible part

Abstract

Forceps for grasping tissue material comprising a stationary stylet telescopingly disposed within a cannula. Jaws are mounted to one end of the stylet and the other end of the stylet is fixedly mounted in a handle. The cannula is mounted to the handle for sliding movement over the jaws to selectively compress and release the same to grasp and release tissue material or the like engaged by the jaws.

Claims

1. Apparatus for grasping human tissue or the like comprising:

a flexible handle having a first portion spaced from a second portion and an elongated hollow cannula having one end fixed to said second portion and extending through said first portion and the other end opening externally of and remote from said handle;

an elongated stylet telescopingly and slidably mounted within said cannula having one end fixed to said handle and the other end terminating adjacent the open end of said cannula;

a pair of integrally connected resilient spaced gripping members coupled to the distal end of said stylet, each of said gripping members extending away from the distal end of said stylet and outwardly therefrom each other, said open end of said cannula being adapted to abut against said gripping members when said handle is squeezed, whereby said cannula moves linearly with respect to said handled while said stylet remains stationary and the open end of said cannula moves over said gripping members forcing them together to grasp human tissue therebetween; and

a cover disposed on top of said first and second portions, said stylet being connected to said cover.

2. Apparatus for grasping human tissue or the like comprising:

a flexible handle having a first portion spaced from a second portion and an elongated hollow cannula having one end fixed to said second portion and extending through said first portion and the other end opening externally of and remote from said handle;

an elongated stylet telescopingly and slidably mounted within said cannula having one end fixed to said handle and the other end terminating adjacent the open end of said cannula; and

a pair of integrally connected resilient spaced gripping members coupled to the distal end of said stylet, each of said gripping members extending away from the distal end of said stylet and outwardly therefrom each other, said open end of said cannula being adapted to abut against said gripping members when said handle is squeezed, whereby said cannula moves linearly with respect to said handle while said stylet remains stationary and the open end of said cannula moves over said gripping members forcing them together to grasp human tissue therebetween, said first portion including an open ended cavity therein, said cannula riding in said cavity, and a cover closing off said cavity and said second portion of said handle, said cover having a slot therein rearwardly of said second portion receiving said stylet therein in a fixed relationship.

3. Apparatus for grasping human tissue or the like comprising:

a flexible handle having a first portion spaced from a second portion and an elongated hollow cannula having one end fixed to said second portion and extending through said first portion and the other end opening externally of and remote from said handle;

an elongated stylet telescopingly and slidably mounted within said cannula having one end fixed to said handle and the other end terminating adjacent the open end of said cannula;

a pair of integrally connected resilient spaced gripping members coupled to the distal end of said stylet, each of said gripping members extending away from the distal end of said stylet and outwardly therefrom each other, said open end of said cannula being adapted to abut against said gripping members when said handle is squeezed, whereby said cannula moves linearly with respect to said handle while said stylet remains stationary and the open end of said cannula moves over said gripping members forcing them together to grasp human tissue therebetween; and

a cover closing off said first and second portions having a portion thereof disposed against said second portion, said stylet being connected to said portion of said cover, said cover being connected only to said first portion.