Methods and apparatus for sampling and analyzing body fluid
First Claim
1. A sampling device for sampling body fluid, comprising:
- a housing;
a lancet carrier mounted in the housing and supporting a disposable lancet;
a mechanism disposed in the housing for displacing the lancet carrier toward a lower end of the housing for forming an incision through the skin of a user; and
a body fluid sampling member mounted in the lancet carrier for conducting body fluid from the incision, comprisinga capillary member including an elongated stem having a capillary passage extending longitudinally therethrough for conducting body fluid upwardly by capillary action, anda test strip affixed to the capillary member at an upper end thereof and in communication with the capillary passage for receiving a sample of body fluid therefrom.
4 Assignments
0 Petitions
Accused Products
Abstract
A sampling device for sampling body fluid includes a lancet for making an incision, a capillary tube for drawing-up body fluid from the incision, and a test strip affixed to an upper end of the capillary tube for receiving the fluid. An absorbent pad can be disposed between the test strip and capillary tube for spreading-out the fluid being transferred to the test strip. An on-site analyzer such as an optical analyzer and/or an electrochemical analyzer can be mounted in the device for analyzing the fluid. Alternatively, a test strip can be slid through a slot formed in the bottom end of the device so that by passing the device against the skin after an incision has been formed, the test strip will directly contact body fluid emanating from the incision.
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Citations
13 Claims
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1. A sampling device for sampling body fluid, comprising:
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a housing; a lancet carrier mounted in the housing and supporting a disposable lancet; a mechanism disposed in the housing for displacing the lancet carrier toward a lower end of the housing for forming an incision through the skin of a user; and a body fluid sampling member mounted in the lancet carrier for conducting body fluid from the incision, comprising a capillary member including an elongated stem having a capillary passage extending longitudinally therethrough for conducting body fluid upwardly by capillary action, and a test strip affixed to the capillary member at an upper end thereof and in communication with the capillary passage for receiving a sample of body fluid therefrom. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A sampling device for body fluid by forming an incision on a skin surface, comprising:
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a housing; a lancet carrier mounted in the housing supporting a disposable lancet; a longitudinally slidable stimulator sleeve disposed within the housing and surrounding the lancet carrier, the sleeve constructed such that by the application of downward force on the housing, the sleeve is pressed against the skin surface; a mechanism for displacing the lancet carrier toward a lower end of the housing for forming an incision through the skin of a user; and a strip-holding mechanism mounted at a lower end of the housing for supporting a test strip across the lower end of the housing to enable the test strip to pick-up body fluid from the incision. - View Dependent Claims (10, 11)
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12. A method of sampling body fluid comprising the steps of:
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A) positioning a lower end of a sampling device against a skin surface; B) displacing a lancet toward the lower end of the sampling device to form an incision through the skin; C) repeatedly depressing an area of the skin surrounding the incision by applying a downward force to the housing a sufficient number of times to express a drop of body fluid from the incision; D) mounting a test strip in the sampling device to extend across the lower end thereof; and E) moving the sampling device toward the incision to bring the test strip into contact with body fluid emerging from the incision. - View Dependent Claims (13)
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Specification