System and method for the extraction and monitoring of a biological fluid
First Claim
1. A device for extracting biological fluid from tissue having a biological opening, comprising:
- a body including a separate contact surface that defines a sampling aperture and a sensor surface affixable on tissue with said aperture alignable over said opening and defining an access point;
a pump; and
a sampling channel between the sampling aperture and the pump thereafter affixable to said contact surface, wherein the sampling channel is thereby aligned to be in fluid communication with the access point.
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Accused Products
Abstract
The systems and methods involve creating an opening in the biological tissue of the patient and placing a sampling aperture of the extraction device over the opening. The sampling aperture is defined in a contact surface of the extraction device that is placed into contact with the tissue of the patient. A pump of the extraction device such as a depressible bulb sealed to the body is charged to create a vacuum between the pump through a sampling channel to the sampling aperture, and the vacuum draws the biological fluid from the tissue opening into the sampling channel. An access point is exposed to the sampling channel, and the sample of fluid may be accessed from the access point. The access point may be an extraction opening covered by an access door, and the access door is opened to access the sample.
32 Citations
20 Claims
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1. A device for extracting biological fluid from tissue having a biological opening, comprising:
- a body including a separate contact surface that defines a sampling aperture and a sensor surface affixable on tissue with said aperture alignable over said opening and defining an access point;
a pump; and
a sampling channel between the sampling aperture and the pump thereafter affixable to said contact surface, wherein the sampling channel is thereby aligned to be in fluid communication with the access point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- a body including a separate contact surface that defines a sampling aperture and a sensor surface affixable on tissue with said aperture alignable over said opening and defining an access point;
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9. A device for extracting biological fluid, comprising:
- a body including a contact surface that defines a sampling aperture and a sensor surface defining an access point;
a pump; and
a sampling channel between the sampling aperture and the pump, wherein the sampling channel is in fluid communication with the access point, and, wherein the access point comprises an extraction opening and an extraction door attached to the body and covering the extraction opening.
- a body including a contact surface that defines a sampling aperture and a sensor surface defining an access point;
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10. A method of extracting biological fluid from tissue having an opening, comprising:
- creating an artificial unobstructed opening in biological tissue;
placing a contact surface of an extraction device on the biological tissue, the contact surface defining an aperture located proximate to the opening in the biological tissue;
attaching an extraction pump to said contact surface after said surface is affixed to said tissue, charging a pump of the extraction device to develop a vacuum at the aperture and draw the biological fluid through the aperture into a sampling channel; and
accessing the biological fluid contained within the extraction device. - View Dependent Claims (11, 12, 13, 14)
- creating an artificial unobstructed opening in biological tissue;
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15. A method of extracting biological fluid, comprising:
- creating an artificial unobstructed opening in biological tissue;
placing a contact surface of an extraction device on the biological tissue, the contact surface defining an aperture located proximate to the opening in the biological tissue;
charging a pump of the extraction device to develop a vacuum at the aperture and draw the biological fluid through the aperture into a sampling channel; and
accessing the biological fluid contained within the extraction device and, wherein accessing the biological fluid contained within the extraction device comprises accessing the biological fluid through an extraction opening of the extraction device covered by an access door by opening the access door to access the extraction opening and extracting the biological fluid from the extraction opening.
- creating an artificial unobstructed opening in biological tissue;
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16. A device for extracting biological fluid from tissue having an opening, comprising:
- a body including a planar contact surface that defines a sampling aperture said contact surface being independently affixable to said tissue, a separable pump unit comprising a sensor surface defining an access point, and a ventilation surface defining a ventilation opening;
a depressible self-restoring bulb sealed to the body;
a sampling channel between the sampling aperture and the bulb, said pump unit being affixable to said contact surface after said contact surface has been affixed to said tissue, wherein the sampling channel is in fluid communication with the access point;
a wick disposed within the sampling channel between the access point and the bulb; and
a ventilation channel interconnecting the ventilation opening to the sampling channel, wherein the wick is disposed between the ventilation channel and the sampling aperture along a path of the sampling channel. - View Dependent Claims (17, 18, 19)
- a body including a planar contact surface that defines a sampling aperture said contact surface being independently affixable to said tissue, a separable pump unit comprising a sensor surface defining an access point, and a ventilation surface defining a ventilation opening;
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20. A device for extracting biological fluid, comprising:
- a body including a planar contact surface that defines a sampling aperture, a sensor surface defining an access point, and a ventilation surface defining a ventilation opening;
a depressible self-restoring bulb sealed to the body;
a sampling channel between the sampling aperture and the bulb, wherein the sampling channel is in fluid communication with the access point;
a wick disposed within the sampling channel between the access point and the bulb; and
a ventilation channel interconnecting the ventilation opening to the sampling channel, wherein the wick is disposed between the ventilation channel and the sampling aperture along a oath of the sampling channel and wherein the access point comprises an extraction opening and an extraction door attached to the body and covering the extraction opening.
- a body including a planar contact surface that defines a sampling aperture, a sensor surface defining an access point, and a ventilation surface defining a ventilation opening;
Specification