Method for aspirating secreted fluids from a wound

• US 4,661,093 A
• Filed: 06/08/1984
• Issued: 04/28/1987
• Est. Priority Date: 06/11/1983
• Status: Expired due to Term

• Current Assignee: BECK, WALTER CH-8700 KUSNACHT, WERNER, MARGRIT D-6500 MAINZ
• Original Assignee: Margrit Werner, Walter Beck
• Inventors: Beck, Walter, Werner, Heinz-Peter, Berger, Siegfried
• Primary Examiner(s): Dixon, Jr., William R.
• Assistant Examiner(s): Medley, Margaret B.
• Application Number:
  US06/618,828
• Time in Patent Office: 1,054 Days
• Field of Search: 604/51, 604/52, 604/133, 604/151-153, 604/119, 604/122, 604/123, 604/50, 604/66
• US Class Current: 604/543
• CPC Class Codes: A61M 1/74 Suction control underwater drainage A61M1/61
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 27/00 Drainage appliance for wounds or the like , i.e. wound drains, implanted drains negative pressure wound therapy devices A61M1/90; implements for holding wound open A61B17/02 ; middle ear drainage A61F11/202
• CPC Class Codes: F04B 43/1253 by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing

Abstract

A method and apparatus for aspirating secreted fluids from a wound is disclosed which involves the placement of a drain into a wound via the tissue adjacent the wound. After the wound is closed, a secretion aspiration and collection device, which is connected to the drain via a tube, is placed into operation. The device is designed to have a suction effect controlled between a minimum value and a maximum value according to the quantity of secreted fluid to be aspirated. This is achieved by one or more sensors which control a tube pump. When a second sensor is used, the pump will not be shut off by a passing air bubble in the fluid. A sleeve may also be provided to facilitate introduction of the drain into the wound. Additionally, a needle may be detachably connected to the sleeve to aid the insertion of the sleeve.

Claims

1. A method for aspirating secreted fluid out of a wound comprising the steps of:

(a) connecting a drain via a tube with a secretion aspiration and collection device to form a sterile system;

(b) placing said drain into the wound through tissue adjacent the wound;

(c) closing said wound;

(d) placing said secretion aspiration and collection device into operation, said secretion aspiration and collection device having a suction effect controlled between a minimum value and a maximum value;

(e) sensing the amount of fluid secreted by the wound; and

(f) varying said suction effect by means of a tube pump on the basis of the quantity of secreted fluid sensed in the wound to be aspirated.

2. The method according to claim 1 further comprising the steps of:

(a) introducing a sterile sleeve into the tissue adjacent the wound from the wound side of the tissue;

(b) pushing said sterile sleeve outward through the tissue toward a body surface defining an outward surface of the tissue in such a manner that a forward end of said sleeve projects above said body surface and a rear end of said sleeve still lies in the wound;

(c) introducing said drain into the wound through said sleeve; and

(d) withdrawing said sleeve outwardly from the tissue.

3. The method according to claim 2 wherein said drain is introduced into the wound through said sleeve from the forward end of said sleeve.

4. The method according to claim 3 further comprising the steps of:

(a) parting said sleeve longitudinally after withdrawing said sleeve from the tissue; and

(b) removing said sleeve from said tube connecting said drain with said secretion aspiration and collection device.

5. The method according to claim 4 further comprising the steps of:

(a) using a sterile needle detachably connected to the forward end of said sleeve to facilitate said step of introducing said sleeve into said tissue; and

(b) detaching said sleeve from said needle.

6. The method of claim 1 further including the steps of providing sensing means for measuring the quantity of fluid in the wound.

7. The method of claim 6 wherein said sensing means is a capacitive or inductive sender.

8. The method of claim 6 wherein said sensing means is positioned on the section of tube between a tube pump and said drain.