Device for Treatment of Venous Congestion

• US 20090093754A1
• Filed: 12/15/2008
• Published: 04/09/2009
• Est. Priority Date: 12/22/1999
• Status: Abandoned Application

• Current Assignee: Gregory K. Hartig, Michael L. Conforti, Nadine P. Connor
• Original Assignee: Gregory K. Hartig, Michael L. Conforti, Nadine P. Connor
• Inventors: Connor, Nadine P., Hartig, Gregory K., Conforti, Michael L.
• Application Number:
  US12/335,304
• Publication Number:
  US 20090093754A1
• Time in Patent Office: Days
• US Class Current: 604/28
• CPC Class Codes: A61H 33/02 Bathing devices for use with gas-containing liquid, or liquid in which gas is led or generated, e.g. carbon dioxide baths A61H33/6026 takes precedence
• CPC Class Codes: A61H 35/00 Baths for specific parts of the body electric circuits therefor A61H33/005; specific components therefor A61H33/60
• CPC Class Codes: A61M 1/08 Cupping glasses , i.e. for enhancing blood circulation
• CPC Class Codes: A61M 1/842 rotating continuously rotating surgical cutting instruments A61B17/32002
• CPC Class Codes: A61M 1/85 with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants for negative pressure wound therapy A61M1/92, A61M1/94; combined with tracheal tubes A61M16/0463; dental instruments with combined rinsing and aspirating A61C17/0208
• CPC Class Codes: A61M 5/3287 Accessories for bringing the needle into the body; Automatic needle insertion A61M5/20, A61M5/31525 take precedence

Abstract

A device for treatment of venous congestion provides for subcutaneous introduction of anticoagulant through an incision positioned within a collection shell for withdrawal of an effused material. A widened delivery tip provides dispersal of the anticoagulant and may be agitated to disrupt clot formation.

Claims

1. A method for the treatment of venous congestion comprising:

(a) implanting through an incision in the skin of a patient, a tip of an anticoagulant delivery conduit, the tip having a larger cross-sectional area than the conduit to disperse more widely the anticoagulant beneath the skin;

(b) surrounding the incision with a shell, the shell having a rim and defining an inner volume, the shell further having a suction port communicating with the inner volume;

(c) delivering an anticoagulant through the delivery conduit; and

(d) withdrawing recovered blood and anticoagulant through the suction port.

2. The method of claim 1 further including the step of injecting a bolus of anticoagulant at the region of the incision prior to step (a).

3. The method of claim 1 including the step of periodically rotating the conduit to prevent the formation of clots.

4. The method of claim 1 including the step of periodically reciprocating the conduit axially to prevent the formation of clots.

5. The method of claim 1 wherein the tip is positioned to extend in part through the opening of the skin separating, the opening in the skin beyond that required of the conduit.

6. The method of claim 1 wherein the tip dispenses the anticoagulant through a plurality of openings in the tip.

7. The method of claim 1 including the step of abrading edges of the tissue surrounding the tip with edges of the tip contacting the tissue to promote bleeding and disrupt clotting.

8. The method of claim 3 including the step of sensing flow of recovered blood, and controlling the motion of the conduit as a function of the sensed flow.

9. The device of claim 1 further including the step of introducing air to a region proximate to the patient'"'"'s skin to agitate liquid at the patient'"'"'s skin.

10. The method of claim 1 including the further step of:

(e) reintroducing the recovered blood into the patient as an autotransfusion

11. A device for the treatment of venous congestion comprising:

a shell having a rim adapted to abut a patient'"'"'s skin to define a suction area circumscribed by the rim and an inner volume;

a pressure sensitive adhesive on the rim to attach the rim to the patient'"'"'s skin;

a conduit supported by the shell for the delivery of anticoagulant; and

a suction port attached to the shell through which recovered anticoagulant may be drawn from the inner volume