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.
Claims38
A fluid delivery device, comprising:
- a dispensing chamber;
- a sac arranged in the dispensing chamber and configured to contain a fluid;
- a channel arranged to communicate between a treatment site and the dispensing chamber;
- and
- a delivery driver configured to travel within the dispensing chamber with a force greater than a force needed to push the fluid through the channel;
- wherein at least one of the dispensing chamber and the channel includes at least one sharpened interior portion.
A fluid delivery device, comprising:
- a housing including a port adapted to fit an unbent staple;
- a dispensing chamber arranged in the housing and configured to contain a fluid;
- a channel arranged to communicate between a treatment site and the dispensing chamber;
- and
- a delivery driver configured to travel within the dispensing chamber with a force greater than a force needed to push the fluid through the channel.
A fluid delivery device, comprising:
- a dispensing chamber arranged in a housing and configured to contain a fluid;
- a cannula having a sharpened distal end and arranged to travel within the dispensing chamber;
- a channel arranged to communicate between a treatment site and the dispensing chamber;
- and
- a delivery driver configured to travel within the dispensing chamber with a force greater than a force needed to push the fluid through the channel.
A fluid delivery device, comprising:
- a housing including an annular array of dispensing chambers, each configured to contain a fluid;
- and
- a delivery driver arranged to travel within the dispensing chambers with a force greater than a force needed to expel the fluid from the dispensing chambers.
Dependencies are inferred from the claim text.