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US 11,614,170 B2Granted
Wound therapy device pressure monitoring and control system
AssigneeInnovative Therapies, Inc.
InventorsDavid Malcolm Tumey, Tianning Xu, Alan John Martin, Brent Lee Burchfield, Raymond Reade Harpham
Life of this patent
Estimating the term…
Abstract
A new system for negative pressure wound therapy is described. The system includes a patient tube set connecting the wound dressing to the suction container. The patient tube set provides separate channels for applying suction to the wound site and sensing the therapeutic pressure at the wound site. A restrictor valve may also be included in order to introduce a small air leak into the system to prevent occlusions in the patient tube set.
Claims31
A wound therapy system comprising:
- a wound dressing;
- a pressure sensor;
- a container having an internal chamber;
- a vacuum source pneumatically associated with the internal chamber of the container;
- and
- a tube set comprising a first tube and a second tube, wherein the first tube forms a fluid channel, and wherein the second tube forms a sensor channel in the tube set;
- wherein the wound dressing is pneumatically associated with the internal chamber of the container by the fluid channel of the tube set;
- wherein the wound dressing is pneumatically associated with the pressure sensor by the sensor channel of the tube set;
- and
- wherein the container has a first port comprising a first attachment and a second attachment;
- wherein a first end of the first tube is coupled to the wound dressing and a second end of the first tube is coupled to the first attachment of the first port;
- and
- wherein a first end of the second tube connects to the wound dressing and a second end of the second tube connects to the second attachment of the first port.
10 more elements
A wound therapy system comprising:
- a wound dressing;
- a pressure sensor;
- a first tube configured to form a fluid channel, and a second tube configured to form a sensor channel;
- and
- a restrictor pneumatically associated with the wound dressing by the sensor channel of the first tube, wherein the restrictor has a hole that is configured to allow air to leak into the wound therapy system;
- wherein the wound dressing is pneumatically associated with a vacuum source by the fluid channel;
- and
- wherein the wound dressing is pneumatically associated with the pressure sensor by the sensor channel.
5 more elements
A wound therapy system comprising:
- a wound dressing;
- a pressure sensor;
- a container having an internal chamber;
- a vacuum source pneumatically associated with the internal chamber of the container;
- and
- a tube set comprising a first tube configured to form a fluid channel and a second tube configured to form a sensor channel in the tube set;
- wherein the wound dressing is pneumatically associated with the internal chamber of the container by the fluid channel of the tube set;
- wherein the wound dressing is pneumatically associated with the pressure sensor by the sensor channel of the tube set;
- and
- wherein the tube set is a first tube set, and wherein the wound therapy system further comprises a second tube set having a fluid channel and a sensor channel, and a valve positioned in-line between the first tube set and the second tube set.
7 more elements
A method of wound therapy comprising:
- applying a dressing to a wound, wherein the dressing is coupled to a tube set comprising a fluid channel and a sensor channel;
- applying a vacuum to the fluid channel, wherein the vacuum draws exudate from the wound into the fluid channel;
- and
- providing a restrictor pneumatically associated with the wound dressing by the sensor channel, the restrictor having a hole through which air can leak into the sensor channel, wherein the air pushes fluids from the wound dressing into the fluid channel of the tube set.
1 more element
A device for creating an air leak, the device comprising:
- a body having a first port in communication with a second port;
- a cap coupled to the first port of the body, the cap having a hole;
- and
- a porous material positioned between the cap and the first port of the body;
- wherein air is configured to enter the device through the hole in the cap and pass through the porous material before entering the body via the first port.
2 more elements
Dependencies are inferred from the claim text.