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US4553966A Expired / Lapsed US ⏱️ 0.0 years remaining

Device for draining body fluids and irrigating solutions

Assignee: Medtronic Xomed LLC
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Filing: 1983-09-19
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Granted: 1985-11-19
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Expires: 2003-09-19
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Abstract

Abstract A device for draining body fluids and irrigating solutions adapted for utilization with respect to operations on the human body, such as brain operations, eye operations, micro surgery and other types of operations, wherein a wick material, which may be used as a single unit or wherein a wick material, which may be separated or cut into sections, is connected to a drainage funnel or pouch which may be secured by adhesive or otherwise at the site of the operation and wherein the wick material is capable of capillary absorption of fluids initially and when saturated, of acting in a siphon-like manner to draw fluids into the pouch. The pouch itself at its lower end is connected by a tube to a collection bag which is appropriately vented. For smaller incisions or for utilization at sites where fluid is to be drawn from relatively small areas or openings, the wick material instead of comprising a number of sections cut and shaped from the original wick material may comprise a single slender wick member which may readily be located at the said site. In forming the wick material for utilization with respect to absorption of fluids from a larger incision, at least one of the sections which is formed may extend only to the edge of the incision in order to draw fluid which might otherwise be absorbed by the drape around the incision, thereby ensuring that all of the fluid is withdrawn into a pouch in which, if necessary, it may be examined or tested prior to being disposed of.

Inventors

  • 👤 Wayne Korteweg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 05:33
CPC Classifications
A; A61; A61M; A61M27/00

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 94 words
A fluid collection and disposal system for utilization in connection with the drawing off of fluids during medical procedures or operations comprising a wicking material having a high capillary absorption capacity capable of being saturated to become a siphoning material when a portion thereof passes the edge of an area from which fluid is to be drawn; and means connected to said wicking material to receive said fluid; the wick material being separated into a plurality of sections or fingers which may be spread over the site of the procedure which is being performed.
Claim 2
Dependent Claim 94 words
A fluid collection and disposal system for utilization in connection with the drawing off of fluids during medical procedures or operations comprising a wicking material having a high capillary absorption capacity capable of being saturated to become a siphoning material when a portion thereof passes the edge of an area from which fluid is to be drawn; and means connected to said wicking material to receive said fluid; the wick material being separated into a plurality of sections or fingers which may be spread over the site of the procedure which is being performed.
Claim 3
Dependent Claim 36 words
The fluid collection and disposal system of claim 1, wherein additional wicking members touching said fingers may be placed in or on a site to be drained, said additional members acting as extension of the wick.
Claim 4
Dependent Claim 30 words
The fluid collection and disposal system of claim 1, wherein said wick material comprises a relatively narrow section capable of being placed in a relatively small area of the body.
Claim 5
Dependent Claim 48 words
The fluid collection and disposal system of claim 1, wherein the device is particularly adapted for utilization for brain operations and the wick material is cut and spread to cover various portions of the opening through the skull to the brain in order to collect and drain fluid.
Claim 6
Dependent Claim 23 words
The fluid collection and disposal system of claim 1, wherein the wicking material is a hydroxylated polyvinyl acetal sponge containing a radio-opaque material.
Claim 7
Dependent Claim 37 words
The fluid collection and disposal system of claim 1, wherein the device comprises wick material having a relatively narrow section capable of collecting eye drainage fluid directly into a pouch and adapted for utilization in eye operations.
Claim 8
Dependent Claim 28 words
The fluid collection and disposal system of claim 2, wherein the wicking material is connected to a drainage device into which fluid from the wick material may drain.
Claim 9
Dependent Claim 29 words
The fluid collection and disposal system of claim 7, wherein the drainage system comprises a drainage funnel with a tube at its lower end for removal of the fluid.
Claim 10
Dependent Claim 30 words
The fluid collection and disposal system of claim 1, wherein the wick material is capable of being cut into a plurality of sections which may be spread over the area.

References Cited (Backward Citations)

US2457851A Cited
US4246901A Cited
US4344432A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-11-18 1989-05-20 1989-11-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-11-18 1993-05-20 1993-11-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-11-18 1997-05-20 1997-11-19 $7700.00 Window Closed / Lapsed

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