System for gravity inclusion of powder into a medical delivery flow stream
OwnerJohn Burban, John W. Shanahan +3inventors
InventorsJohn Burban, John W. Shanahan, Michael R. Spearman, Craig J. Cuta, Keith A. Roberts
Life of this patent
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Abstract
A method and apparatus deliver dry, flowable hemostatic powder into a gas flow stream by gravity delivery within a body of the apparatus. The hemostatic powder is then carried with the gas out of the apparatus into an elongated delivery tube inserted into a patient. Delivery of the powder into the gas flow stream creates a bolus of powder and air which becomes more uniformly distributed as it passes through the elongated delivery tube.
Claims20
An apparatus for delivering dry hemostatic powder to an internal operation site or wound site of mammals comprising:
- a hand-holdable device having a handle end and a forward end;
- the handle end of the hand-holdable device having a coupling element configured to connect to a gas pressure source and a distal end of the hand-hold-able device having a delivery connector configured to connect to an elongated tubular delivery channel;
- an open passageway comprising an internal gas flow path between the coupling element and the distal end of the hand-holdable device;
- the internal gas flow path intersecting with and connecting to a receptor for a neutral pressure particulate dry hemostatic powder gravity feeding cartridge;
- and
- a trigger within the handle end of the hand-holdable device which opens and closes an opening for hemostatic gravity feed from the cartridge while there is gas flow from outside the handle end towards the coupling elements and the distal end of the hand-holdable device.
A device for the delivery of dry hemostatic powder to an internal operation site or wound site of mammals, comprising:
- (a) an application device comprising a handle end and a forward end connected to a proximal end of an elongated tubular delivery channel, a conveying gas flow containing pressurized gas to mix with dry powder, a receptor for a neutral pressure particulate dry hemostatic powder gravity feeding cartridge, and an internal gas flow path from the handle end to the proximal end and passing under the receptor;
- (b) the handle end of the application device having a coupling element configured to connect to a gas pressure source and a distal end of the application device having a delivery connector configured to connect to an elongated tubular delivery channel engaging the neutral pressure particulate dry hemostatic powder gravity feeding cartridge onto the receptor;
- (c) a gas conveying tube connected to the internal gas flow path at the handle end of the application device;
- and
- (d) the cartridge gravity dropping the dry hemostatic powder from a bottom of the cartridge configured such that pressure within the cartridge has no function in delivering powder into the mixing area.
Dependencies are inferred from the claim text.