CA2418665A1 - System for pain-reduced withdrawal of blood - Google Patents

System for pain-reduced withdrawal of blood Download PDF

Info

Publication number
CA2418665A1
CA2418665A1 CA002418665A CA2418665A CA2418665A1 CA 2418665 A1 CA2418665 A1 CA 2418665A1 CA 002418665 A CA002418665 A CA 002418665A CA 2418665 A CA2418665 A CA 2418665A CA 2418665 A1 CA2418665 A1 CA 2418665A1
Authority
CA
Canada
Prior art keywords
lancet
impulse
tip
exit opening
cndot
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
CA002418665A
Other languages
French (fr)
Other versions
CA2418665C (en
Inventor
Claus-Dieter Garthe
Peter Ruschke
Guenther Schmelzeisen-Redeker
Claudio Immekus
Uschi Wolf
Klemens Masuch
Hans List
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
F Hoffmann La Roche AG
Original Assignee
F. Hoffmann-La Roche Ag
Claus-Dieter Garthe
Peter Ruschke
Guenther Schmelzeisen-Redeker
Claudio Immekus
Uschi Wolf
Klemens Masuch
Hans List
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 F. Hoffmann-La Roche Ag, Claus-Dieter Garthe, Peter Ruschke, Guenther Schmelzeisen-Redeker, Claudio Immekus, Uschi Wolf, Klemens Masuch, Hans List filed Critical F. Hoffmann-La Roche Ag
Publication of CA2418665A1 publication Critical patent/CA2418665A1/en
Application granted granted Critical
Publication of CA2418665C publication Critical patent/CA2418665C/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
    • A61B5/41—Detecting, measuring or recording for evaluating the immune or lymphatic systems
    • A61B5/414—Evaluating particular organs or parts of the immune or lymphatic systems
    • A61B5/417—Evaluating particular organs or parts of the immune or lymphatic systems the bone marrow
    • 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
    • A61B5/150053—Details for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
    • A61B5/150106—Means for reducing pain or discomfort applied before puncturing; desensitising the skin at the location where body is to be pierced
    • A61B5/150137—Means for reducing pain or discomfort applied before puncturing; desensitising the skin at the location where body is to be pierced by vibration
    • 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
    • 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
    • A61B5/15113—Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
    • 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
    • A61B5/15128—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides comprising 2D- or 3D-shaped elements, e.g. cams, curved guide rails or threads
    • 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
    • A61B5/15186—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
    • A61B5/15188—Constructional features of reusable driving devices
    • A61B5/1519—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for propelling the piercing unit
    • 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
    • A61B5/15186—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
    • A61B5/15188—Constructional features of reusable driving devices
    • A61B5/15192—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing
    • A61B5/15194—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing 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
    • 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
    • A61B5/150175—Adjustment of penetration depth
    • A61B5/150198—Depth adjustment mechanism at the proximal end of the carrier of the piercing element

Abstract

Lancet system for pain-reduced blood withdrawal comprising an impulse generator which exerts an impulse on a body part in a sequence which is synchronized with the movement of a lancet. Method for the pain-reduced blood withdrawal in which an impulse is exerted on an adjacent body part in a sequence which is synchronized with the generation of an opening in the skin.

Claims (17)

1. Lancet system for pain-reduced blood withdrawal comprising, .cndot. a housing with a contact surface which has an exit opening for the tip of a lancet, .cndot. a lancet holder for holding the lancet which can move in the housing along a lancing path, .cndot. a lancet drive for moving the lancet holder along the lancing path, .cndot. an impulse generator which exerts an impulse on a body part in a sequence that is synchronized with the movement of the lancet holder.
2. System as claimed in claim 1 which is designed such that the impulse is exerted between 0 and 100 ms and preferably between 20 and 50 ms after the tip of the lancet emerges from the exit opening.
3. System as claimed in claim 1 which is designed such that the impulse is exerted between 1000 and 0 ms before the tip of the lancet emerges from the exit opening.
4. System as claimed in claim 1 which has a device for adjusting the length of the lancet tip which protrudes beyond the contact surface.
5. System as claimed in claim 1 in which the impulse is transferred to the body via the contact surface.
6. System as claimed in claim 1 which has a ram for transferring the impulse to the body.
7. System as claimed in claim 1 in which the impulse generator and the lancet drive are mechanically coupled together.
8. System as claimed in claim 1 in which the impulse generator comprises a rotary slide gear which has an axis of rotation which is parallel to the lancing path and which is driven by an elastic drive element, and the system additionally comprises a mass whose movement is controlled by the gear member.
9. System as claimed in claim 8 in which the gear member controls the movement of the lancet holder.
10. System as claimed in claim 1 which has a cap that can be moved relative to the housing and on which cap the contact surface with the exit opening is located.
11. System as claimed in claim 10 which has an elastic drive element for moving the lancet holder into a lancing position and a second elastic drive element for retracting the lancet tip into the housing, wherein the second elastic drive element is mounted against the movable cap.
12. System as claimed in claim 1 in which the impulse generator exerts a maximum force in the range of 10 to 30 N on the body part.
13. System as claimed in claim 5 or 6 in which the contact surface or the ram has a profiled surface with which the impulse is applied.
14. Method for pain-reduced blood withdrawal comprising the steps .cndot.contacting a body part with a contact surface of a housing which has an exit opening for the tip of a lancet .cndot. moving a lancet holder with a lancet in the housing along a lancing path such that the tip of the lancet emerges through the exit opening beyond the contact surface .cndot. exerting an impulse on a body part in a sequence that is synchronized with the movement of the lancet holder.
15. Method as claimed in claim 14 in which the impulse is exerted between 1000 and 0 ms before the tip emerges from the exit opening.
16. Method as claimed in claim 14 in which the impulse is exerted between 0 and 100 ms, preferably between 20 and 50 ms after the tip emerges from the exit opening.
17. Method as claimed in one of the claims 14 to 16 in which the impulse has a duration in the range of 0 to 10 ms, preferably between 1 and 7 ms.
CA2418665A 2002-02-15 2003-02-11 System for pain-reduced withdrawal of blood Expired - Fee Related CA2418665C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10206254.4 2002-02-15
DE10206254A DE10206254A1 (en) 2002-02-15 2002-02-15 System for taking pain-free blood

Publications (2)

Publication Number Publication Date
CA2418665A1 true CA2418665A1 (en) 2003-08-15
CA2418665C CA2418665C (en) 2010-01-26

Family

ID=27618704

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2418665A Expired - Fee Related CA2418665C (en) 2002-02-15 2003-02-11 System for pain-reduced withdrawal of blood

Country Status (6)

Country Link
US (1) US7244266B2 (en)
EP (1) EP1336375B1 (en)
JP (1) JP3643363B2 (en)
AT (1) ATE466525T1 (en)
CA (1) CA2418665C (en)
DE (2) DE10206254A1 (en)

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Also Published As

Publication number Publication date
JP2003265447A (en) 2003-09-24
CA2418665C (en) 2010-01-26
US20030225429A1 (en) 2003-12-04
EP1336375B1 (en) 2010-05-05
DE10206254A1 (en) 2003-08-28
JP3643363B2 (en) 2005-04-27
ATE466525T1 (en) 2010-05-15
DE50312679D1 (en) 2010-06-17
EP1336375A3 (en) 2004-01-14
US7244266B2 (en) 2007-07-17
EP1336375A2 (en) 2003-08-20

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