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US 6,681,979 B2Granted
Fluid delivery device for use with anastomosing stapling, and resecting instruments
AssigneePower Medical Interventions, Inc.
InventorMichael P. Whitman
Life of this patent
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AssigneePower Medical Interventions, Inc.
InventorMichael P. Whitman
Estimating the term…
A fibrin injection mechanism for use in combination with an anastomosing and stapling attachment for an electromechanical device driver comprises a cylindrical dispensing chamber adjacent the cylindrical blade of the attachment and containing a sac filled with fibrin, a plurality of channels extending within the blade communicating between the dispensing chamber and the cutting edge of the blade, such that when the turning drive shaft is activated, the staple driver of the attachment moves forward to push a plurality of staples through corresponding staple ports and against the anvil of the attachment to pass through and staple together the target tissue, while the blade driver of the attachment moves forward to cut the unwanted residual tissue (post stapling), while a plunger (delivery) driver moves forward through the dispensing chamber to compress the sac to its break point, releasing the fluid medication into the dispensing chamber, and eventually pushing the medication though the channels to deliver the fibrin to the cutting edge of the blade and thus to the site of the newly stapled target tissue to accelerate the healing process.
A fluid delivery device, comprising:
A fluid delivery device, comprising:
A fluid delivery device comprising:
A fluid delivery device comprising:
A fluid delivery device comprising:
A fluid delivery device, comprising:
A fluid delivery device, comprising:
A fluid delivery device comprising:
A method, comprising the steps of:
A method, comprising the steps of:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
For performing anastomosis; Buttons for anastomosis: of the digestive tract, e.g. bowels or oesophagus
For performing anastomosis; Buttons for anastomosis: staplers for performing anastomosis, e.g. in a single operation
Surgical instruments, devices or methods: surgical glue applicators
Staplers for performing anastomosis, e.g. in a single operation: circular staplers comprising a plurality of staples
Term ended 22 Feb 2020 (estimated)
1. Field of the Invention
The present invention relates generally to a fluid delivery device for use with anastomosing, stapling, and resecting surgical tools, and more specifically to a fibrin injection mechanism by which such tools may deliver fibrin to the stapling and cutting site of a resected colon.
2. Description of the Prior Art
FIG. 1 is a side perspective view of a linear clamping and stapling instrument of the prior art;
FIG. 2 is a side perspective view of an anastomosing and stapling instrument of the prior art;
FIG. 3 is a side view of a handle and flexible shaft of an electromechanical device driver which is used to drive the anastomosing and stapling attachment described herein;
While the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which particular embodiments are shown, it is to be understood at the outset that persons skilled in the art may modify the invention herein described while achieving the functions and results of this invention. Accordingly, the descriptions which follow are to be understood as illustrative and exemplary of specific structures, aspects and features within the broad scope of the present invention and not as limiting of such broad scope. Like numbers refer to similar features of like elements throughout.
A preferred embodiment of the fluid delivery device for an anastomosing and stapling attachment according to the present invention is illustrated in FIGS. 4-6. More particularly, referring now to FIG. 4, a perspective exterior view of an anastomosing and stapling attachment in an extended position is shown. The anvil portion 20 and the staple, blade, and reservoir (SBR) portion 25 are connected by a coupling post 30 which extends from the flat cutting support surface 35 of the anvil portion 20 and is selectively coupleable and removable from the corresponding nut mounted to one of the turning drive shafts 40 of the SBR portion 25.
Referring now also to FIG. 5, a cutaway view of the interior of the SBR portion 25 is shown. The SBR portion 25 is cylindrical in shape, and has a hollow interior, or reservoir 45. A stapling surface 50 faces axially outward toward the cutting support surface 35 of the anvil portion 20, and contains a series of staple ports 55, through which staples 60 are discharged. A series of staple drivers 65 are mounted within a staple driver shaft 80, behind corresponding staple ports 55, for driving the staples 60 therethrough. More accurately, the staple drivers 65 are a series of protuberances on the outer edge of a driving cylinder 70 which seats in the SBR portion 25 and which is connected to the second drive shaft (not shown) of the SBR portion 25. The staples 60, prior to being discharged, are mounted behind the staple ports 55 as shown and are advanced through the ports 55 by the forward motion of the staple drivers 65 and the protuberances thereof.