CA2450711A1 - Single use lancet device - Google Patents

Single use lancet device Download PDF

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Publication number
CA2450711A1
CA2450711A1 CA002450711A CA2450711A CA2450711A1 CA 2450711 A1 CA2450711 A1 CA 2450711A1 CA 002450711 A CA002450711 A CA 002450711A CA 2450711 A CA2450711 A CA 2450711A CA 2450711 A1 CA2450711 A1 CA 2450711A1
Authority
CA
Canada
Prior art keywords
lancet
assembly
orientation
disposed
recited
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002450711A
Other languages
French (fr)
Other versions
CA2450711C (en
Inventor
Steven Schraga
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Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2450711A1 publication Critical patent/CA2450711A1/en
Application granted granted Critical
Publication of CA2450711C publication Critical patent/CA2450711C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15142—Devices intended for single use, i.e. disposable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/14—Devices for taking samples of blood ; Measuring characteristics of blood in vivo, e.g. gas concentration within the blood, pH-value of blood
    • A61B5/1405—Devices for taking blood samples
    • A61B5/1411—Devices for taking blood samples by percutaneous method, e.g. by lancet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/150022—Source of blood for capillary blood or interstitial fluid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150259—Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150503—Single-ended needles
    • A61B5/150519—Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150885—Preventing re-use
    • A61B5/150916—Preventing re-use by blocking components, e.g. piston, driving device or fluid passageway
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15103—Piercing procedure
    • A61B5/15107—Piercing being assisted by a triggering mechanism
    • A61B5/15111—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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
    • A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15126—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides
    • A61B5/1513—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides comprising linear sliding guides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15126—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides
    • A61B5/15132—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides comprising tooth-shaped elements, e.g. toothed wheel or rack and pinion

Abstract

A single use lancet device (10) having a housing (20), a lancet (24) with a piercing tip (25) movably disposed in the housing (20) and structured to mov e between a cocked orientation and a piercing orientation, and a driving assembly structured to move the lancet (24) into the piercing orientation. A retention member and an engagement hub are further provided and structured t o be cooperatively engaged with one another upon the lancet being disposed in the cocked orientation so as to maintain the lancet in the cocked orientatio n until released by an actuation assembly (40). Specifically, the actuation assembly (40) is structured to move between an actuated and an unactuated orientation, movement into the actuated orientation releasing the retention member and the engagement hub from their cooperative engagement with one another and thereby result in movement of the lancet into the piercing orientation. The device also includes a restrictor assembly structured to substantially prevent the actuation, assembly from moving out of the actuate d orientation, thereby preventing re-firing of the lancet utilizing the actuation assembly.

Claims (30)

1. A single use lancet device comprising:
a) a housing, b) a lancet movably disposed within said housing and including a piercing tip, c) an actuation assembly mounted on said housing and releasably and drivingly connected to said lancet, d) said actuation assembly selectively movable to dispose said lancet at least into a cocked orientation, e) a driving assembly disposed in driving engagement with said lancet and structured to move said lancet from said cocked orientation at least temporarily into a piercing orientation, and f) a restriction assembly disposed and structured to restrict movement of said lancet from said piercing orientation into said cocked orientation.
2. A lancet device as recited in claim 1 wherein said driving assembly is further structured to orient said piercing tip into a retracted orientation subsequent to said lancet being disposed in said piercing orientation.
3. A lancet device as recited in claim 2 wherein said driving assembly comprises a biasing member disposed in biasing engagement with said lancet on said lancet is in said cocked orientation.
4. A lancet device as recited in claim 3 wherein said biasing member is disposed and structured to move said lancet out of said piercing orientation and dispose said piercing tip into said retracted orientation.
5. A lancet device as recited in claim 1 wherein said driving assembly is disposed and structured to force said lancet into said piercing orientation upon release of said lancet from said actuation assembly.
6. A lancet device as recited in claim 5 wherein said driving assembly is further structured to orient said piercing tip automatically into a retracted orientation subsequent to said lancet being disposed in said piercing orientation.
7. A lancet device as recited in claim 1 further comprising a positioning assembly movably and releasably interconnecting said actuation assembly and said lancet.
8. A lancet device as recited in claim 7 wherein said positioning assembly is disposed in concurrent engagement with both said actuation assembly and said lancet as said lancet is being disposed into said cocked orientation.
9. A lancet device as recited in claim 8 wherein said driving assembly and positioning assembly are cooperatively disposed and structured to force said lancet into said piercing orientation upon release of said positioning assembly from at least one of said actuation assembly or lancet.
10. A lancet device as recited in claim 7 wherein said lancet is positioned from said cocked orientation into said piercing orientation upon disposition of said positioning assembly out of concurrent engagement with said lancet and said actuation assembly.
11. A lancet device as recited in claim 7 wherein said positioning assembly comprises at least one positioning member movably and releasably interconnecting said lancet and said actuation assembly.
12. A lancet device as recited in claim 11 wherein said positioning member is disposed in concurrent engagement with both said lancet and said actuation assembly as said lancet moves into said cocked orientation and said positioning member is disconnected from at least one of said lancet and actuation member upon moving into said piercing orientation from said cocked orientation.
13. A lancet device as recited in claim 12 wherein said positioning member is movable relative to both said lancet and said actuation assembly.
14. A lancet device as recited in claim 12 wherein said positioning member is fixedly secured to said actuation assembly and disposed in movable and detachable relation to said lancet.
15. A lancet device as recited in claim 12 wherein said positioning member comprises a gear structure.
16. A lancet device as recited in claim 7 wherein said positioning assembly is movable relative to both said lancet and said actuation assembly.
17. A lancet device as recited in claim 7 wherein said positioning assembly is fixedly secured to said actuation assembly and disposed in movable and detachable relation to said lancet.
18. A lancet device as recited in claim 7 wherein said positioning assembly comprises a gear structure.
19. A lancet device as recited in claim 1 wherein said restriction assembly comprises at least one restrictor member and at least one stop member, said one restrictor member connected to one of said lancet or actuation assembly and movable therewith, said stop member fixedly secured to said housing and disposed in abutting relation to said one restrictor member as set lancet moves from said piercing orientation towards said cocked orientation.
20. A lancet device as recited in claim 19 wherein said one restrictor member is secured to said lancet and movable therewith.
21. A lancet device as recited in claim 19 wherein said one restrictor member is secured to said actuation assembly and movable therewith.
22. A lancet device as recited in claim 1 wherein said restriction assembly comprises a first restrictor member and a first stop member and a second restrictor member and a second stop member, said first and second restrictor members each connected to a different one of said lancet or actuation assembly and movable therewith, said first and second stop members fixedly secured to said housing and disposed in abutting relation to a corresponding one of said first or second restrictor members as said lancet moves from said piercing orientation towards said cocked orientation.
23. A single use lancet device comprising:
a) a housing, b) a lancet movably disposed within said housing and including a piercing tip, c) an actuation assembly movably mounted on said housing in driving relation to said lancet, d) a positioning assembly movably and releasably interconnecting said actuation assembly and said lancet, e) said actuation assembly selectively positionable to dispose said lancet at least into a cocked orientation, f) a driving assembly disposed in biasing relation to said lancet and structured to position said lancet at least temporarily into a piercing orientation, and g) said driving assembly and said positioning assembly cooperatively disposed and structured to force said lancet into said piercing orientation upon release of said positioning assembly from at least one of said actuation assembly or said lancet.
24. A lancet device as recited in claim 23 wherein said positioning assembly comprises at least one positioning member movably and releasably interconnecting said lancet and said actuation assembly.
25. A lancet device as recited in claim 24 wherein said positioning member is disposed in concurrent engagement with both said lancet and said actuation assembly as said lancet moves into said cocked orientation and said positioning member is disconnected from at least one of said lancet and said actuation assembly upon moving into said piercing orientation from said cocked orientation.
26. A lancet device as recited in claim 23 wherein said driving assembly is disposed and structured to move said lancet out of said piercing orientation and dispose said piercing tip into said retracted orientation.
27. A lancet device as recited in claim 23 further comprising a restriction assembly disposed and structured to restrict movement of said lancet from said piercing orientation into said cocked orientation.
28. A lancet device as recited in claim 27 wherein said restriction assembly comprises at least one restrictor member and at least one stop member, said one restrictor member connected to one of said lancet or said actuation assembly and movable therewith, and said stop member fixedly secured to said housing and disposed in abutting relation to said one restrictor member as said lancet moves from said piercing orientation towards said cocked orientation.
29. A single use lancet assembly comprising:
a) a housing, b) a lancet movably disposed within said housing and including a piercing tip, c) an actuation assembly movably mounted on said housing in driving relation to said lancet, d) a positioning assembly movably and releasably interconnecting said actuation assembly and said lancet, e) said actuation assembly selectively positionable to dispose said lancet at least into a cocked orientation during concurrent engagement of said positioning assembly with said lancet and said actuation assembly, f) a driving assembly drivingly connected to said lancet, g) said driving assembly and said positioning assembly being cooperatively disposed and structured to force said lancet into said piercing orientation upon release of said positioning assembly from at least one of said actuation assembly or lancet, h) said driving assembly being disposed and structured to automatically move said lancet out of said piercing orientation and disposed said piercing tip into a retracted orientation, and i) a restriction assembly disposed and structured to restrict movement of said lancet from said piercing orientation into said cocked orientation.
30. A single use lancet assembly comprising:
a) a housing, b) a lancet movably disposed within said housing and including a piercing tip, c) an actuator movably disposed in driving engagement with said lancet, d) at least two engagement elements disposed to operatively interconnect said actuation assembly and said lancet at least upon engagement therebetween, e) said actuation assembly structured to position said lancet at least temporarily into a cocked orientation upon actuation thereof concurrent with said engagement between said engagement elements, f) a driving assembly drivingly engaging said lancet, g) said actuation assembly further structured to effect dis-engagement between said engagement elements upon continued actuation thereof after said lancet is disposed in said cocked orientation, and h) said driving assembly structured to move said lancet at least temporarily into a piercing orientation upon said disengagement between said engagement elements.
CA2450711A 2001-06-13 2002-06-13 Single use lancet device Expired - Fee Related CA2450711C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US29782601P 2001-06-13 2001-06-13
US60/297,826 2001-06-13
PCT/US2002/018936 WO2003049624A1 (en) 2001-06-13 2002-06-13 Single use lancet device

Publications (2)

Publication Number Publication Date
CA2450711A1 true CA2450711A1 (en) 2003-06-19
CA2450711C CA2450711C (en) 2010-11-02

Family

ID=23147898

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2450711A Expired - Fee Related CA2450711C (en) 2001-06-13 2002-06-13 Single use lancet device

Country Status (7)

Country Link
US (2) US6958072B2 (en)
EP (1) EP1408852A4 (en)
JP (1) JP2005511191A (en)
CN (1) CN1287745C (en)
AU (1) AU2002310432A1 (en)
CA (1) CA2450711C (en)
WO (1) WO2003049624A1 (en)

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US20030050656A1 (en) 2003-03-13
EP1408852A4 (en) 2009-09-09
US6958072B2 (en) 2005-10-25
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US7575583B1 (en) 2009-08-18
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WO2003049624A1 (en) 2003-06-19
CN1541080A (en) 2004-10-27

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