Tumescent lipoplastic apparatus

• US 5,447,493 A
• Filed: 01/10/1994
• Issued: 09/05/1995
• Est. Priority Date: 01/10/1994
• Status: Expired due to Fees

• Current Assignee: Very Inventive Physicians
• Original Assignee: Very Inventive Physicians
• Inventors: Blugerman, Guillermo S., Schavelzon, Diego E.
• Primary Examiner(s): MCDERMOTT, CORRINE MARIE
• Application Number:
  US08/179,747
• Time in Patent Office: 603 Days
• Field of Search: 604/19, 604/22, 604/27, 604/35, 604/902
• US Class Current: 604/35
• CPC Class Codes: A61M 1/772 operating alternately
• CPC Class Codes: A61M 1/84 Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 1/895 with means for reinjection of collected fat
• CPC Class Codes: A61M 19/00 Local anaesthesia syringes therefor A61M5/00; Hypothermia A61M5/42 takes precedence; cooling blood in a bypass of the arterial system A61M1/36
• CPC Class Codes: A61M 2202/0014 removed from the body
• CPC Class Codes: A61M 2202/08 Lipoids
• CPC Class Codes: Y10S 604/902 Suction wands

Abstract

An improved medical tool which combines tumescent anesthetic solution with lipoplastic. Using a peristaltic pump and a cannula, the surgeon directs the tumescent solution into the area of concern. The tumescent solution provides both a local anesthetic as well as a vasoconstrictor. The solution eliminates the need for a general anesthetic, thus eliminating problems associated therewith, and the solution causes the blood vessels to constrict, reducing the amount of blood loss during the procedure. Once the solution has had an opportunity to perform its function, the surgeon reverses the direction of the peristaltic pump and removes the fat and tissue through the same cannula used for the tumescent portion of the operation. Since the suction process is performed by the peristaltic pump (as opposed to manually by the surgeon), the cannula is reduced in size to a highly versatile and tactile instrument providing highly improved results.

Claims

1. A surgical assembly comprising:

a) a lipoplastic cannula having an enclosed channel extending therein, a handle portion proximate to a first end thereof, and further having vent openings proximate to an end opposite said handle portion and communicating with said enclosed channel, said handle portion being suitable for use with a single hand of a surgeon and being less than twenty millimeters in diameter;

b) a flexible bag reservoir containing a medicated liquid being a local anesthetic and a vasoconstrictor;

c) a flexible clear tubing communicating said channel in said cannula with said flexible bag reservoir; and

,

d) a reversible pump means interposed between said cannula and said flexible bag reservoir for selectively communicating, via said flexible tubing, said medicated liquid from said flexible bag reservoir to said cannula, and for communicating body materials and liquids from a patient via said cannula to said reservoir.

2. The surgical assembly according to claim 1 wherein said cannula includes attachment means for connecting said flexible tubing to said cannula.

3. The surgical assembly according to claim 2 wherein said attachment means is positioned at one end of said cannula in communication with said enclosed channel.

4. The surgical assembly according to claim 1 wherein said reversible pump means is a peristaltic pump having roller means in contact with said flexible tubing for pumping materials within said flexible tubing.

5. The surgical assembly according to claim 4 further including a remote control means, in communication with said peristaltic pump, for engaging said roller means to rotate.

6. The surgical assembly according to claim 5 wherein said remote control means is foot activated.

7. A surgical instrument comprising:

a) a cannula having a handle portion proximate to a first end thereof and a channel therein, said channel having vent openings proximate to an end opposite said handle portion;

b) a reservoir containing a sterile liquid;

c) a flexible tubing communicating said channel in said cannula with said reservoir; and

,

d) a reversible pump means interposed between said cannula and said reservoir for,

1) selectively communicating, via said flexible tubing, said sterile liquid to said cannula, and,

2) communicating body materials and liquids from a patient via said cannula to said reservoir.

8. The surgical instrument according to claim 7 wherein the handle of said cannula is less than twenty millimeters in diameter.

9. The surgical instrument according to claim 8 wherein said cannula includes attachment means for connecting said flexible tubing to said cannula.

10. The surgical instrument according to claim 9 wherein said attachment means is positioned at one end of said cannula in communication with said channel.

11. The surgical instrument according to claim 7 wherein said flexible tubing is transparent.

12. The surgical instrument according to claim 7 wherein said reversible pump means is a peristaltic pump having roller means in contact with said flexible tubing for pumping materials within said flexible tubing.

13. The surgical instrument according to claim 12 further including an operator activated control means for directing operation of said roller means.

14. The surgical instrument according to claim 13 wherein said operator activated control means is foot activated.

15. The surgical instrument according to claim 7 wherein said reservoir is a flexible bag and wherein said medicated liquid includes a local anesthetic and a vasoconstrictor.

16. An improved cannula and reservoir assembly for lipoplastic surgery comprising:

a) a barrel portion having a first end and a second end and having a channel therein and having at least one vent opening proximate to the first end of said barrel, said at least one vent opening being in communication with said channel and for communication of a mixture including a local anesthetic and vasoconstrictor to a site of an operation;

b) a handle portion positioned at a second end of said barrel;

c) a reservoir containing a sterile liquid;

d) a flexible tubing communicating said channel in said barrel portion with said reservoir; and

,

e) a reversible pump means interposed between said barrel portion and said reservoir for selectively communicating, via said flexible tubing, said sterile liquid from said reservoir to said barrel portion, and for communicating body materials and liquids from a patient via said barrel portion to said reservoir.

17. The improved cannula and reservoir assembly according to claim 16 wherein said handle portion is less than twenty millimeters in diameter.

18. The improved cannula and reservoir assembly according to claim 16 wherein said cannula includes attachment means for connecting a flexible tubing to said cannula.

19. The improved cannula and reservoir assembly according to claim 18 wherein said attachment means is positioned at one end of said cannula in communication with said channel.