Sensor with electrical contact protection for use in fluid collection canister and negative pressure wound therapy systems including same
First Claim
1. A negative pressure wound therapy system, comprising:
- a collection canister comprising a chamber configured to collect wound fluids;
a sensor configured to detect a volume of fluid collected with the collection canister, the sensor comprising;
a first electrode including a first portion and a second portion, wherein the first portion of the first electrode is supported by a surface of the collection canister, and the second portion of the first electrode extends into the chamber;
a second electrode including a first portion and a second portion, wherein the first portion of the second electrode is supported by the surface of the collection canister, and the second portion of the second electrode extends into the chamber;
wherein a change in an electrical property associated with the first and second electrodes indicates that a particular volume of fluid has been collected in the collection canister; and
an inner wall disposed within the chamber, wherein the second portions of the first and second electrodes are disposed within an area between the surface of the collection canister and the inner wall.
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Accused Products
Abstract
A sensor for use in a canister for fluid collection, the canister having a canister top and defining a fluid collection chamber. The sensor includes a first electrode and a second electrode. The first electrode includes a first portion and a second portion, wherein the first portion of the first electrode is supported by the canister top, and the second portion of the first electrode is configured to extend into the fluid collection chamber. The second electrode includes a first portion and a second portion, wherein the first portion of the second electrode is supported by the canister top, and the second portion of the second electrode is configured to extend into the fluid collection chamber. The sensor also includes an electric circuit configured to detect an electrical property associated with the first and second electrodes.
201 Citations
25 Claims
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1. A negative pressure wound therapy system, comprising:
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a collection canister comprising a chamber configured to collect wound fluids; a sensor configured to detect a volume of fluid collected with the collection canister, the sensor comprising; a first electrode including a first portion and a second portion, wherein the first portion of the first electrode is supported by a surface of the collection canister, and the second portion of the first electrode extends into the chamber; a second electrode including a first portion and a second portion, wherein the first portion of the second electrode is supported by the surface of the collection canister, and the second portion of the second electrode extends into the chamber; wherein a change in an electrical property associated with the first and second electrodes indicates that a particular volume of fluid has been collected in the collection canister; and an inner wall disposed within the chamber, wherein the second portions of the first and second electrodes are disposed within an area between the surface of the collection canister and the inner wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A negative pressure wound therapy system, comprising:
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a collection canister comprising a chamber configured to collect wound fluids; a sensor configured to detect a particular volume of fluid associated with the collection canister, the sensor comprising; two or more electrodes each including a first portion and a second portion, wherein the first portions of the two or more electrodes are supported by a surface of the collection canister, and the second portions of the two or more electrodes are positioned within the chamber and configured to contact the collected wound fluid, wherein the second portions of the two or more electrodes are disposed within the collection canister at a pre-determined distance from the surface of the collection canister corresponding to the particular volume of fluid accumulated within the collection canister; and wherein a change in an electrical property associated with the two or more electrodes indicates that a particular volume of fluid has been collected in the collection canister. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification