Catalysts for Body Fluid Sample Extraction
First Claim
1. A method of sampling body fluid from a wound opening created in a skin surface at a sampling site, the method comprising:
- automatically or manually initiating a testing sequence;
applying a catalyst to the sampling site;
actuating a skin-piercing member so as to drive the member into the surface of the skin thereby creating the wound opening;
allowing the at least one skin-penetration member to obstruct the wound opening; and
transporting body fluid through an inner lumen of the skin-penetration member;
wherein the catalyst is applied to the sampling site at one or more of the following times;
prior to actuating the skin-piercing member, during actuation of the skin-piercing member, or after actuating the skin-penetration member.
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Accused Products
Abstract
An arrangement for producing a sample of body fluid from a wound opening created in a skin surface at a sampling site includes at least one skin-penetration member having a first end configured to pierce the surface of the skin, and a inner lumen in communication with the first end; at least one actuator operatively associated with the at least one skin-penetration member; and at least one catalyst device configured to cause perfusion of body fluid at the sampling site; wherein the at least one actuator is configured to locate the at least one skin-penetration member so as to obstruct the wound opening while transporting body fluid through the inner lumen. Associated methods are also described.
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Citations
1 Claim
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1. A method of sampling body fluid from a wound opening created in a skin surface at a sampling site, the method comprising:
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automatically or manually initiating a testing sequence; applying a catalyst to the sampling site; actuating a skin-piercing member so as to drive the member into the surface of the skin thereby creating the wound opening; allowing the at least one skin-penetration member to obstruct the wound opening; and transporting body fluid through an inner lumen of the skin-penetration member; wherein the catalyst is applied to the sampling site at one or more of the following times;
prior to actuating the skin-piercing member, during actuation of the skin-piercing member, or after actuating the skin-penetration member.
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Specification