SE548014C2 - Safety lancet - Google Patents

Safety lancet

Info

Publication number
SE548014C2
SE548014C2 SE2450339A SE2450339A SE548014C2 SE 548014 C2 SE548014 C2 SE 548014C2 SE 2450339 A SE2450339 A SE 2450339A SE 2450339 A SE2450339 A SE 2450339A SE 548014 C2 SE548014 C2 SE 548014C2
Authority
SE
Sweden
Prior art keywords
actuator
penetration
contact
lancet
force
Prior art date
Application number
SE2450339A
Other languages
English (en)
Other versions
SE2450339A1 (en
Inventor
Göran Ewerlöf
Original Assignee
Wagewe Innovation Ab
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 Wagewe Innovation Ab filed Critical Wagewe Innovation Ab
Priority to SE2450339A priority Critical patent/SE548014C2/en
Priority to PCT/EP2025/057571 priority patent/WO2025202000A1/en
Publication of SE2450339A1 publication Critical patent/SE2450339A1/en
Publication of SE548014C2 publication Critical patent/SE548014C2/en

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
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150274—Manufacture or production processes or steps for blood sampling devices
    • A61B5/15029—Manufacture or production processes or steps for blood sampling devices for driving devices, i.e. means for driving the piercing element
    • 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
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • 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
    • A61B5/150442—Blade-like piercing elements, e.g. blades, cutters, knives, for cutting 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
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
    • 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
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150694—Procedure for removing protection means at the time of piercing
    • A61B5/150717—Procedure for removing protection means at the time of piercing manually removed
    • 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
    • A61B5/15105—Purely manual piercing, i.e. the user pierces the skin without the assistance of any driving means or driving devices
    • 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
    • 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
    • A61B5/15142—Devices intended for single use, i.e. disposable
    • A61B5/15144—Devices intended for single use, i.e. disposable comprising driving means, e.g. a spring, for retracting the piercing unit into the housing
    • 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
    • A61B5/151—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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Hematology (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Manufacturing & Machinery (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Surgical Instruments (AREA)

Claims (6)

1. En säkerhetslansett (10) innefattande
- en lansettkropp (12) försedd med ett kontaktelement (14) försett med en kontaktyta för att vid användning vara i kontakt med ett penetrationsställe, varvid kontaktelementet (14) är anordnat med en passage (16),
- en gångjärnsmekanism (32) anordnad vid lansettkroppen (12),
- en bärare (40) innefattande ett penetrationselement (42) och anslutet till gångjärnsmekanismen (32) och som är linjärt rörlig längs en första axel (X1) mellan en första position med penetrationselementet inuti lansettkroppen och en andra position med penetrationselementet (42) utskjutande genom passagen (16),
- en långsträckt flexibel aktuator (50) ansluten med ena änden till lansettkroppen (12) sträckande sig i en proximal riktning och med en fri ände (52) vilande på ett flexibelt kraftelement (48) positionerat intill gångjärnsmekanismen (32) i den första positionen,
- en aktivator (26) manövrerbart ansluten till aktuatorn (50), vilken aktivator (26) är manuellt rörlig i en riktning längs en andra axel (X2) huvudsakligen vinkelrät mot den första axeln (X1).
att aktivatorn (26) eller aktuatorn (50) vidare innefattar ett stödelement eller en kontaktpunkt (54, 60, 70),
varvid en manuell rörelse av aktivatorn (26) i den andra axelns (X2) riktning kommer att få den fria änden (52) hos den flexibla aktuatorn (50) att röra sig längs kraftelementet (48) och förspänna kraftelementet (48) så att den flexibla aktuatorn (50) böjs och skjuts i distal riktning av stödelementet eller kontaktpunkten (54, 60, 70) som är i kontakt med aktivatorn (26) eller aktuatorn (50) under aktuatorns (50) rörelse, vilket bygger upp en böjkraft i aktuatorn (50), tills den manuella rörelsen hos aktivatorn (26) kommer att trycka den fria änden (52) av aktuatorn (50) bort från kraftelement (48), varvid den fria änden (52) av aktuatorn (50) kommer att träffa gångjärnsmekanismen (32) och, genom aktuatorns böjkraft, flytta bäraren (40) och penetrationselementet (42) snabbt i proximal riktning till den andra positionen och utföra en penetration.
2. En säkerhetslansett enligt patentkrav 1, varvid gångjärnsmekanismen (32) är förspänd i distal riktning i den första positionen och varvid ytterligare manuell rörelse av aktivatorn (26) kommer att flytta aktuatorn (50) ur kontakt med gångjärnsmekanismen (32), vilket i sin tur får bäraren (40) och penetrationselementet (42) att röra sig tillbaka till den första positionen.
3. En säkerhetslansett enligt patentkrav 1 eller 2, varvid lansettkroppen (12) vidare innefattar en styryta (46) som är generellt parallell med den första axeln (X1), och varvid en sidoyta (44) på bäraren (40) förflyttas i kontakt med styrytan (46) för att styra bäraren (40) längs den första axeln (X1) under penetration.
4. En säkerhetslansett enligt något av föregående patentkrav, varvid kraftelementet (48) innefattar en flexibel tunga.
5. En säkerhetslansett enligt något av de föregående patentkraven, vidare innefattande ett första låselement (27, 62) anordnat vid aktivatorn (26) eller aktuatorn (50) och ett andra låselement (48, 64) anordnat vid lansettkroppen, vilket samverkar för att låsa aktuatorn (50) efter att aktuatorn (50) har förts ur kontakt med gångjärnsmekanismen.
6. Säkerhetslansett enligt patentkrav 1, varvid stödelementet (54) innefattar en bågformad kontaktyta.
SE2450339A 2024-03-27 2024-03-27 Safety lancet SE548014C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE2450339A SE548014C2 (en) 2024-03-27 2024-03-27 Safety lancet
PCT/EP2025/057571 WO2025202000A1 (en) 2024-03-27 2025-03-20 Safety lancet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2450339A SE548014C2 (en) 2024-03-27 2024-03-27 Safety lancet

Publications (2)

Publication Number Publication Date
SE2450339A1 SE2450339A1 (en) 2025-09-28
SE548014C2 true SE548014C2 (en) 2026-01-13

Family

ID=95123229

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2450339A SE548014C2 (en) 2024-03-27 2024-03-27 Safety lancet

Country Status (2)

Country Link
SE (1) SE548014C2 (sv)
WO (1) WO2025202000A1 (sv)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133730A (en) * 1991-05-15 1992-07-28 International Technidyne Corporation Disposable-retractable finger stick device
US5395388A (en) * 1993-11-15 1995-03-07 Schraga; Steven Single unit lancet device
US5545174A (en) * 1994-01-11 1996-08-13 Sherwood Medical Company Finger stick device
US5584846A (en) * 1995-10-27 1996-12-17 International Technidyne Corporation Low cost disposable lancet
US20060259057A1 (en) * 2005-04-07 2006-11-16 John Kim Trigger activated lancet
US20070225741A1 (en) * 2004-04-26 2007-09-27 Yoshiaki Ikeda Lancet Device for Forming Incision
US20070233166A1 (en) * 2004-05-27 2007-10-04 Facet Technologies, Llc Low-Cost Lancing Device with Cantilevered Leaf Spring for Launch and Return
US8491618B2 (en) * 2004-12-21 2013-07-23 Owen Mumford Limited Skin pricking apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539988A (en) * 1983-07-05 1985-09-10 Packaging Corporation International Disposable automatic lancet
US8469986B2 (en) * 2007-03-30 2013-06-25 Stat Medical Devices, Inc. Lancet device with combined trigger and cocking mechanism and method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133730A (en) * 1991-05-15 1992-07-28 International Technidyne Corporation Disposable-retractable finger stick device
US5395388A (en) * 1993-11-15 1995-03-07 Schraga; Steven Single unit lancet device
US5545174A (en) * 1994-01-11 1996-08-13 Sherwood Medical Company Finger stick device
US5584846A (en) * 1995-10-27 1996-12-17 International Technidyne Corporation Low cost disposable lancet
US20070225741A1 (en) * 2004-04-26 2007-09-27 Yoshiaki Ikeda Lancet Device for Forming Incision
US20070233166A1 (en) * 2004-05-27 2007-10-04 Facet Technologies, Llc Low-Cost Lancing Device with Cantilevered Leaf Spring for Launch and Return
US8491618B2 (en) * 2004-12-21 2013-07-23 Owen Mumford Limited Skin pricking apparatus
US20060259057A1 (en) * 2005-04-07 2006-11-16 John Kim Trigger activated lancet

Also Published As

Publication number Publication date
WO2025202000A1 (en) 2025-10-02
SE2450339A1 (en) 2025-09-28

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