Analyte monitor

• US 6,540,675 B2
• Filed: 12/20/2000
• Issued: 04/01/2003
• Est. Priority Date: 06/27/2000
• Status: Expired due to Term

• Current Assignee: Intuity Medical, Inc.
• Original Assignee: Rosedale Medical Inc. (Intuity Medical, Inc.)
• Inventors: Zanzucchi, Peter John, Aceti, John Gregory, Loewy, Zvi Gerald, Gregory, Christopher Carter, Moroney, Richard Morgan III
• Primary Examiner(s): WINAKUR, ERIC FRANK
• Application Number:
  US09/741,755
• Publication Number:
  US 20020087056A1
• Time in Patent Office: 832 Days
• Field of Search: 600/309, 600/310, 600/316, 600/322, 600/347, 600/573, 600/575, 600/583, 600/577, 600/556, 600/578, 600/584, 436/95, 422/68.1, 422/82.05, 422/82.06, 422/82.07, 422/82.08
• US Class Current: 600/309
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/1486 using enzyme electrodes, e.g. with immobilised oxidase
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150229 Pumps for assisting the blood sampling
• CPC Class Codes: A61B 5/150389 Hollow piercing elements, e.g. canulas, needles, for piercing the skin
• CPC Class Codes: A61B 5/150473 Double-ended needles, e.g. used with pre-evacuated sampling tubes hollow piercing element tip design A61B5/150396; needle sets for catheters A61M25/06; needles for bringing media into the body A61M5/32
• CPC Class Codes: A61B 5/150511 Details of construction of shaft
• CPC Class Codes: A61B 5/150755 Blood sample preparation for further analysis, e.g. by separating blood components or by mixing
• CPC Class Codes: A61B 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• CPC Class Codes: A61B 5/15123 comprising magnets or solenoids
• CPC Class Codes: A61B 5/15146 Devices loaded with multiple lancets simultaneously, e.g. for serial firing without reloading, for example by use of stocking means. multiple simultaneous cutting or piercing A61B5/150977
• CPC Class Codes: A61B 5/15153 Multiple piercing elements stocked in a single compartment
• CPC Class Codes: A61B 5/15163 Characterized by propelling the piercing element in an axial direction relative to the disc
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood

Abstract

Provided is an analyte monitoring device having a housing, the device comprising: a plurality of needles, each having a tip, a retracted position, a position wherein the tip is extended from the housing a distance adapted to pierce skin; an electrically or spring powered needle pushing apparatus movable to separately engage each of the needles to move each from the retracted position to the extended position; an energy source located within the housing; a plurality of analysis sites comprising an analysis preparation, each adapted to receive liquid from the needles to wet the analysis preparation; one or more light sources adapted to direct light at the analysis sites; one or more light detectors adapted to receive light from the analysis sites; and a processor.

Claims

1. An analyte monitoring device comprising:

a. a housing;

b. a plurality of needles, each having a tip, a retracted position, and a position wherein the tip is extended from the housing a distance adapted to pierce skin;

c. an electrically or spring powered needle pushing apparatus movable to separately engage each of the needles to move each from the retracted position to the extended position;

d. an energy source located within the housing;

e. a plurality of analysis sites comprising an analysis preparation, each adapted to receive liquid from the needles to wet the analysis preparation;

f. one or more light sources adapted to direct light at the analysis sites;

g. one or more light detectors adapted to receive light from the analysis sites; and

h. a processor.

2. The analyte monitoring device of claim 1, wherein elements b and e can be replaceably inserted into the analyte monitoring device as part of a cassette.

3. The analyte monitoring device of claim 1, wherein the housing cannot be reversibly opened such that the analyte monitoring device is disposable.

4. The analyte monitoring device of claim 1, wherein elements b, c and d are within the housing, and wherein the housing cannot be reversibly opened such that the device is adapted for disposable use.

5. The analyte monitoring device of claim 1, further comprising:

i. a RF or IR signaling transmitter adapted for communicating with a second, external processor.

6. An analyte monitoring device comprising:

(a) a housing;

(b) a plurality of needles, each having a tip, a retracted position, and a position wherein the tip is extended from the housing a distance adapted to pierce skin;

(c) an electrically or spring powered needle pushing apparatus movable to separately engage each of the needles to move each from the retracted position to the extended position;

(d) an energy source located within the housing;

(e) a plurality of evacuated analysis sites, each adapted to engage an associated needle during or following needle movement to apply a vacuum to the needle while it is in an extended position; and

(f) a processor.

7. The analyte monitoring device of claim 6, wherein the housing is adapted to not be re-openable such that the energy source is not replaceable or rechargeable.

8. An analyte monitoring device comprising:

a housing, one or more needles, each having a tip, a retracted position, and a position wherein the tip is extended from the housing a distance adapted to pierce skin at an injection site;

at least one analysis site comprising an analysis preparation and adapted to receive liquid from the needle to wet the analysis preparation, and a light source fixed to the housing, the light source being directed toward the injection site and being operable to heat tissue at the injection site.