METHODS AND APPARATUS FOR LANCET ACTUATION

• US 20080214956A1
• Filed: 01/10/2008
• Published: 09/04/2008
• Est. Priority Date: 04/19/2002
• Status: Abandoned Application

• Current Assignee: Pelikan Technologies, Inc.
• Original Assignee: Pelikan Technologies, Inc.
• Inventors: Boecker, Dirk, Alden, Don, Freeman, Dominique, Briggs, Barry Dean
• Application Number:
  US11/972,028
• Publication Number:
  US 20080214956A1
• Time in Patent Office: Days
• US Class Current: 600/575
• CPC Class Codes: A61B 17/32093 for skin incisions
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150068 by tissue compression, e.g. with specially designed surface of device contacting the skin area to be pierced
• CPC Class Codes: A61B 5/150083 by vibration, e.g. ultrasound
• CPC Class Codes: A61B 5/150099 by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
• CPC Class Codes: A61B 5/150152 by an adequate mechanical impact on the puncturing location
• CPC Class Codes: A61B 5/150167 Adjustable piercing speed of skin piercing element, e.g. blade, needle, lancet or canula, for example with varying spring force or pneumatic drive
• CPC Class Codes: A61B 5/15019 Depth adjustment mechanism using movable stops located inside the piercing device housing and limiting the travel of the drive mechanism mechanisms using distal end caps A61B5/150183, mechanisms at the piercing element carrier proximal end A61B5/150198
• CPC Class Codes: A61B 5/150213 Venting means
• CPC Class Codes: A61B 5/150221 Valves
• CPC Class Codes: A61B 5/150229 Pumps for assisting the blood sampling
• CPC Class Codes: A61B 5/150358 Strips for collecting blood, e.g. absorbent optical reagent test strips G01N21/8483; chemical reagent test strips G01N33/4875, G01N33/52
• CPC Class Codes: A61B 5/150412 Pointed piercing elements, e.g. needles, lancets for piercing the skin blade-like piercing elements A61B5/150442
• CPC Class Codes: A61B 5/150435 Specific design of proximal end
• CPC Class Codes: A61B 5/150503 Single-ended needles 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 5/150572 Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
• CPC Class Codes: A61B 5/150809 by audible feedback
• CPC Class Codes: A61B 5/150824 by visual feedback
• CPC Class Codes: A61B 5/150832 : by topography of the surface, e.g. Braille, embossed printing
• CPC Class Codes: A61B 5/15087 : short range, e.g. between console and disposable using implanted devices A61B5/150877
• CPC Class Codes: A61B 5/150916 : by blocking components, e.g. piston, driving device or fluid passageway
• CPC Class Codes: A61B 5/150954 : Means for the detection of operative contact with patient, e.g. by temperature sensitive sensor
• CPC Class Codes: A61B 5/151 : Devices specially adapted for taking samples of capillary blood, e.g. by lancets , needles or blades
• CPC Class Codes: A61B 5/15111 : Semi-automatically triggered, e.g. at the end of the cocking procedure, for instance by biasing the main drive spring or when reaching sufficient contact pressure, the piercing device is automatically triggered without any deliberate action by the user
• CPC Class Codes: A61B 5/15113 : Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
• 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 5/15151 : Each piercing element being stocked in a separate isolated 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 5/15169 : Characterized by a rolled strip
• CPC Class Codes: A61B 5/15171 : Characterized by propelling the piercing element perpendicular to the direction of movement of the strip
• CPC Class Codes: A61B 5/15174 : Piercing elements stocked in the form of a stack or pile
• CPC Class Codes: A61B 5/15176 : Stocking means comprising cap, cover, sheath or protection for aseptic stocking
• CPC Class Codes: A61B 5/15184 : Piercing device comprising a separate compartment or unit for used piercing elements separate compartments for used piercing elements in stocking means A61B5/15178
• CPC Class Codes: A61B 5/15186 : Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
• CPC Class Codes: A61B 5/1519 : comprising driving means, e.g. a spring, for propelling the piercing unit
• CPC Class Codes: A61B 5/15194 : fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
• CPC Class Codes: B01L 2200/10 : Integrating sample preparation and analysis in single entity, e.g. lab-on-a-chip concept
• CPC Class Codes: B01L 2300/0663 : Whole sensors
• CPC Class Codes: B01L 2300/18 : Means for temperature control
• CPC Class Codes: B01L 3/5027 : by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip B01L3/5023 takes precedence; micromixers B01F33/30; microreactors for synthesis B01J19/0093; microcapillary devices in general B81B1/00
• CPC Class Codes: G01N 33/4905 : Determining clotting time of blood by chemical methods G01N33/86, C12Q1/54
• CPC Class Codes: G01N 33/557 : using kinetic measurement, i.e. time rate of progress of an antigen-antibody interaction

Abstract

A lancet driver is provided wherein the driver exerts a driving force on a lancet during a lancing cycle and is used on a tissue site. The driver comprises of a drive force generator for advancing the lancet and a processor coupled to the drive force generator capable of changing the direction and magnitude of force exerted on the lancet during the lancing cycle. The driver further includes a human interface on the housing providing at least one output for communicating with the patient.

Claims

1. A body fluid sampling apparatus, comprising:

a plurality of penetrating members;

a penetrating member actuator coupled to each of a penetrating member;

a plurality of micro sample chambers, each of a penetrating member being associated with a micro sample chamber, each of a micro sampling chamber positioned to receive a body fluid from a tissue site in response to penetration of the tissue site by a penetrating member, and each micro sample chamber having an analyte sensor; and

a controller operable to initiate analyte testing of the body fluid.

2. The apparatus of claim 1, wherein the controller is configured to adjust one or more of the operating parameters.

3. The apparatus of claim 1, further comprising:

a channel that provides for capillary flow of the body flow from the tissue site to a micro sample chamber.

4. The apparatus of claim 2, wherein the operating parameters adapt to a particular user prior to a measurement operation.

5. The apparatus of claim 2, wherein the operating parameters are executed by resources that are controlled with a user interface.

6. The apparatus of claim 1, wherein the controller is configured to provide for continuous monitoring for analyte testing.

7. The apparatus of claim 1, wherein the controller is configured to provide for drug delivery.