Medical clip applier safety arrangement

• US 6,840,945 B2
• Filed: 02/28/2002
• Issued: 01/11/2005
• Est. Priority Date: 02/28/2001
• Status: Expired due to Term

• Current Assignee: Microline Surgical, Inc. (Hoya Corporation)
• Original Assignee: Microline, Inc. (Massachusetts) (Cerplex Group, Inc.)
• Inventors: de Guillebon, Henri, Manetakis, Emmanuel
• Primary Examiner(s): Woo, Julian W.
• Application Number:
  US10/085,737
• Publication Number:
  US 20020128668A1
• Time in Patent Office: 1,048 Days
• Field of Search: 606/139, 606/142, 606/143, 606/219, 606/221, 227/175.1
• US Class Current: 606/142
• CPC Class Codes: A61B 17/1285 for minimally invasive surgery

Abstract

A medical clip dispenser apparatus for the pinching of a medical clip or staple about a portion of a mammalian body tissue. The apparatus comprises an elongated support beam having a distal end with a stationary lower housing thereon, and a distally movable hollow cinch slidably disposed on the lower housing. The cinch has a portion of a pair of closable jaws squeezably arranged therewithin. An elongated pusher has a generally cross-shaped pusher member on a distal end thereof in slidable engagement with the jaws, to keep the jaws apart from one another after a new clip has been pushed into position between the jaws.

Claims

1. A medical clip dispenser apparatus for the pinching of a medical clip or staple about a portion of a mammalian body tissue, said apparatus comprising:

an elongated support beam having a distal end with a stationary lower housing thereon;

a distally movable hollow cinch slidably disposed on said lower housing, said cinch having a portion of a pair of openable and closable jaws squeezably arranged therewithin; and

an elongated pusher having a generally cross-shaped member on a distal end thereof in slidable engagement with a shoulder track on said jaws, to slide between said jaws as they spread apart from one another and for concurrently pushing a new clip into position between said jaws.

2. The medical clip dispenser as recited in claim 1, wherein each of said jaws has an inner edge with a shoulder track extending therealong, for guided receipt of said clip and for subsequent stabilizing receipt of said cross-shaped member.

3. The medical clip dispenser as recited in claim 2, wherein said cross-shaped member includes a pair of wing members extending therefrom, each of said wing members having an outer edge which mates with said shoulder track to keep prevent premature closing of said jaws after a clip has been fed between said jaws.

4. The medical clip dispenser as recited in claim 3, wherein each of said jaws has an upstanding pin thereon for sliding engagement with a pocket in a cam track in said cinch to prevent accidental closing of said jaws.

5. The medical clip dispenser as recited in claim 4, wherein said cross shaped member has a pair of upstanding rails thereon, each of said rails having a distal edge arranged to push distally a new clip in said shoulder track during distal advancement of said cross-shaped member.

6. The medical clip dispenser as recited in claim 5, wherein each of said rails has a sloped proximal edge to permit said rails to be cammed downwardly and out of the way of a successive clip during proximal movement of said cross-shaped member.

7. The medical clip dispenser as recited in claim 4, wherein said cinch has an inner surface on each of said cam tracks for slidable receipt and release of a pin therefrom to permit said jaws to be temporarily locked in the open position.

8. The medical clip dispenser as recited in claim 3, including an elongated biasing spring secured in said lower housing, said elongated biasing spring having a distal end which is in biased rubbing engagement with a lower side of said cross-shaped member so as to keep said cross-shaped member engaged with said clip during loading thereof between said jaws.

9. The medical clip dispenser as recited in claim 8, wherein said elongated biasing spring has a bifurcated proximal end, said bifurcated proximal end being arranged to straddle said elongated pusher for alignment of said pusher with respect to said biasing spring.

10. The medical clip dispenser as recited in claim 1, wherein said cinch and said lower housing each have interengagable rails to prevent their inadvertent separation from one another.

11. A medical clip dispenser apparatus for the pinching of a medical clip or staple about a portion of a mammalian body tissue, said apparatus comprising:

an elongated support beam having a distal end with a stationary lower housing brace thereon;

a distally movable U-shaped cinch slidably disposed on said lower housing, said cinch having a portion of a pair of closable jaws squeezably arranged therewithin;

an elongated pusher having a generally cross-shaped pusher member on a distal end thereof in slidable engagement with said clip or staple, to push a new clip into position between said jaws;

each of said jaws having an inner edge with a shoulder track extending therealong, for guided receipt of said clip and for subsequent receipt of said cross-shaped pusher member;

said cross-shaped member including a pair of wing members extending therefrom;

said wing members laterally disposed on said cross-shaped member so as to slidably engage said shoulder tracks in said jaws after a clip has been loaded between said jaws;

said cross-shaped member comprising a pusher having a pair of upstanding rails thereon, each of said rails having a distal edge arranged to push distally a new clip in a clip track during distal advancement of said cross-shaped member;

each of said rails having a sloped proximal edge to permit said rails to be cammed downwardly and out of the way of said clip track during proximal movement of said cross-shaped member; and

wherein each of said jaws has an upstanding pin thereon for respective engagement with a pocket in a cam track in said cinch to prevent inadvertent closing of said jaws.