Fluid delivery mechanism for use with anastomosing, stapling, and resecting instruments
AssigneePower Medical Interventions, Inc.
InventorMichael P. Whitman
Life of this patent
Estimating the term…
Abstract
A medicine delivery mechanism or fibrin injection mechanism for use in combination with an anastomosing and stapling attachment for an electromechanical device driver comprises a dispensing chamber with an elongated cylindrical cross section (although other shapes can be used) which is formed in the staple housing of the attachment in lieu of a staple port or staple ports, and which has a mouth forming a channel lined at its innermost edge perimeter with inward facing prongs or teeth. The dispensing chamber contains a sac filled with fibrin. A delivery or plunger driver travels within the dispensing chamber to press a sac of fibrin against the inward facing prongs, tearing the sac and releasing the fibrin to push the fibrin through the channel to the treatment site.
Claims18
A fluid delivery device, comprising:
- a dispensing chamber containing a fluid;
- a channel communicating between a treatment site and said dispensing chamber;
- a delivery driver traveling within said dispensing chamber with a force greater than the force needed to push said fluid through said channel;
- and
- a sac within said dispensing chamber and enclosing said fluid;
- and wherein at least one of said dispensing chamber and said channel has at least one sharpened interior portion.
A fluid delivery device, comprising:
- a dispensing chamber containing a fluid;
- a channel communicating between a treatment site and said dispensing chamber;
- a delivery driver traveling within said dispensing chamber with a force greater than the force needed to push said fluid through said channel;
- and
- a housing, said housing containing said dispensing chamber, and containing a port adapted to fit an unbent staple.
A fluid delivery device, comprising:
- a dispensing chamber containing a fluid;
- a channel communicating between a treatment site and said dispensing chamber;
- a delivery driver traveling within said dispensing chamber with a force greater than the force needed to push said fluid through said channel;
- and
- a cannula, said cannula having a sharpened distal end, said cannula traveling within said dispensing chamber.
Dependencies are inferred from the claim text.