Abstract:
Method and apparatus for obtaining a sample of blood from a patient for subsequent diagnostic tests, e.g., glucose monitoring. In one aspect of the invention, the method comprises the steps of:(a) forming an unobstructed opening in the area of the skin from which the sample of blood is to be extracted; and(b) extracting the sample of blood from the unobstructed opening in the skin, with the aid of a vacuum and a stretching of the skin.In another aspect of the invention, an apparatus for carrying out the method described previously is provided. The apparatus comprises:(a) a device for forming an unobstructed opening in an area of skin from which said sample is to be extracted, preferably a lancing assembly; and(b) a vacuum pump.Preferably, the apparatus also includes a housing.
Abstract:
This disclosure relates to a device and method for the non-invasive or minimally invasive withdrawal of fluids from a patient by the use of a self-actuated pump connected to a analyte sensing unit. The self-actuated pump is preferably mounted in the patient's shoe.
Abstract:
Devices, systems and methods for accessing bodily fluid beneath the skin surface by abrading the skin, whereby such bodily fluid may be extracted for ex vivo analysis or whereby an in vivo analyte sensor is implanted at the abrasion site.
Abstract:
Method and apparatus for obtaining a sample of blood from a patient for subsequent diagnostic tests, e.g., glucose monitoring. In one aspect of the invention, the method comprises the steps of: (a) forming an unobstructed opening in the area of the skin from which the sample of blood is to be extracted; and (b) extracting the sample of blood from the unobstructed opening in the skin, with the aid of a vacuum and a stretching of the skin. In another aspect of the invention, an apparatus for carrying out the method described previously is provided. The apparatus comprises: (a) a device for forming an unobstructed opening in an area of skin from which said sample is to be extracted, preferably a lancing assembly; and (b) a vacuum pump. Preferably, the apparatus also includes a housing. In another aspect of this invention, an article is provided for an article capable of both collecting blood and detecting an analyte in that blood is provided. The article, which contains an appropriate detection element for determining the amount of analyte in the blood, can be used in conjunction with a meter that measures the signal generated by the detection element of the article. In one embodiment, the article is a multiple-layer element comprising: (a) a layer capable of receiving blood and transporting the blood received by means of chemically aided wicking; (b) a layer capable of detecting the presence of analyte or measuring the amount of analyte in blood; and (c) a layer that can be placed in contact with a meter, the meter-contactable layer overlying the blood-transporting layer, said layer (a) capable of transporting blood to said layer (b).
Abstract:
Method and apparatus for obtaining a sample of blood from a patient for subsequent diagnostic tests, e.g., glucose monitoring. In one aspect of the invention, the method comprises the steps of:(a) forming an unobstructed opening in the area of the skin from which the sample of blood is to be extracted; and(b) extracting the sample of blood from the unobstructed opening in the skin, with the aid of a vacuum and a stretching of the skin.In another aspect of the invention, an apparatus for carrying out the method described previously is provided. The apparatus comprises:(a) a device for forming an unobstructed opening in an area of skin from which said sample is to be extracted, preferably a lancing assembly; and(b) a vacuum pump.Preferably, the apparatus also includes a housing.In another aspect of this invention, an article is provided for an article capable of both collecting blood and detecting an analyte in that blood is provided. The article, which contains an appropriate detection element for determining the amount of analyte in the blood, can be used in conjunction with a meter that measures the signal generated by the detection element of the article. In one embodiment, the article is a multiple-layer element comprising:(a) a layer capable of receiving blood and transporting the blood received by means of chemically aided wicking;(b) a layer capable of detecting the presence of analyte or measuring the amount of analyte in blood; and(c) a layer that can be placed in contact with a meter, the meter-contactable layer overlying the blood-transporting layer, said layer (a) capable of transporting blood to said layer (b).
Abstract:
Method and apparatus for obtaining a sample of blood from a patient for subsequent diagnostic tests, e.g., glucose monitoring. In one aspect of the invention, the method comprises the steps of:(a) forming an unobstructed opening in the area of the skin from which the sample of blood is to be extracted; and(b) extracting the sample of blood from the unobstructed opening in the skin, with the aid of a vacuum and a stretching of the skin.In another aspect of the invention, an apparatus for carrying out the method described previously is provided. The apparatus comprises:(a) a device for forming an unobstructed opening in an area of skin from which said sample is to be extracted, preferably a lancing assembly; and(b) a vacuum pump.Preferably, the apparatus also includes a housing.In a further aspect of the invention, a pneumatic lancing assembly is provided. The pneumatic lancing assembly uses differential gas pressure to thrust a lancet into skin tissue. This lancing assembly effectively utilizes low-pressure gas, which is preferably provided by the aforementioned vacuum pump, and high-pressure gas, which is preferably provided by ambient air surrounding the apparatus, to thrust the lancet, puncture the skin, and then retract the lancet from the skin to produce an unobstructed opening to allow access to biological fluid.
Abstract:
A palladium-nickel alloy is deposited onto a substrate by electroplating from a plating bath containing palladosammine chloride, nickel ion source, ammonium sulfate, ammonium chloride, and sufficient ammonium hydroxide to provide a pH of about 7.0 to about 8.3 at a temperature of about 60.degree. F. to about 90.degree. F.