DE19855443A1 - Reproduzierbares Stechen zur Blutprobennahme - Google Patents
Reproduzierbares Stechen zur BlutprobennahmeInfo
- Publication number
- DE19855443A1 DE19855443A1 DE19855443A DE19855443A DE19855443A1 DE 19855443 A1 DE19855443 A1 DE 19855443A1 DE 19855443 A DE19855443 A DE 19855443A DE 19855443 A DE19855443 A DE 19855443A DE 19855443 A1 DE19855443 A1 DE 19855443A1
- Authority
- DE
- Germany
- Prior art keywords
- lancet
- cassette
- blood
- skin
- test
- 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
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
- A61B5/157—Devices characterised by integrated means for measuring characteristics of blood
-
- 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
- A61B5/150175—Adjustment of penetration depth
- A61B5/15019—Depth adjustment mechanism using movable stops located inside the piercing device housing and limiting the travel of the drive mechanism
-
- 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
- A61B5/150358—Strips for collecting blood, e.g. absorbent
-
- 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
- A61B5/15103—Piercing procedure
- A61B5/15107—Piercing being assisted by a triggering mechanism
- A61B5/15109—Fully automatically triggered, i.e. the triggering does not require a deliberate action by the user, e.g. by 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
- A61B5/151—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
- A61B5/15186—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
Description
- 1. Laden einer Testkassette 210 in den Kassettenhalter 502 (Fig. 6A und 6B).
- 2. Spannen des Stechgerätes 500 durch ein Zurückziehen des Spannrohrs 562 bis sich die Fangvorrichtung 540 an dem Gehäuse 526 in die Ausnehmung 548 an dem Kolben 546 einriegelt, wodurch die Antriebsfeder (an Position 552, aber in Fig. 6 nicht gezeigt) gegen die Basis 554 des Gehäuses 526 (Fig. 6C) vorbelastet (zusammenge drückt) wird. Wenn das Spannrohr 562 in die proximale Richtung (weg von der Testkassette 210) gezogen wird, drückt ein distaler Flansch des Spannrohrs 572 (siehe Fig. 5A für strukturelle Einzelheiten des Stechgerä tes) auf die hervorstehenden Nasen 550 des Kolbens 542, wodurch der Kolben 546 gedrückt wird, um die Antriebsfeder 552 zusammenzudrücken.
- 3. Loslassen des Spannrohrs 562, wodurch es der Kraft von der zusammengedrückten Spannrohrfeder 568 ermöglicht wird, das Spannrohr 562 in seine frühere Ruheposition (Fig. 6B) zurückzubringen.
- 4. Berühren des beabsichtigten Ortes zum Stechen auf der Haut mit der Testkassette 210 an ihrem distalen Ende. Weiter Drücken der Testkassette 210 gegen die Haut durch Drücken des gesamten Stechgerätes 500. Als ein Ergebnis wird der Kassettenhalter 502 teilweise in das Stechgerät 500 gegen die Kraft der Einstellfeder 532 (Fig. 6E) zusammengedrückt. Gleichzeitig bewegt sich der Auslöser 568 zu der Fangvorrichtung 540, die den Kolben 542 zurückhält, hin.
- 5. An einer vorbestimmten Position gibt der Auslöser 538 die Fangvorrichtung 540 von dem Kolben 542 frei, und die Antriebsfeder 552 treibt den Kolben 542 in die distale Richtung, wodurch die Lanzette der Testkasset te in die Haut getrieben wird (Fig. 6F). Danach springt die Antriebsfeder in der bevorzugten Betriebs art, in der die Antriebsfeder 552 eine ballistische Feder ist, die an der Kolbenbasis 544 befestigt ist, in ihre Ruheposition zurück und zieht den Kolben (wie in Fig. 6B) zurück. Als ein Ergebnis zieht sich die Lanzette von der Haut mittels der Feder 228 in der Testkassette 210 zurück.
Claims (24)
- (a) einer Kassette (210), die ein Kassettengehäuse (222) mit einer Lanzettenöffnung (212) und eine Lanzette (216) mit einer Spitze aufweist, wobei die Lanzette (216) wirksam mit dem Kassettengehäuse (222) verbun den ist, um es zu ermöglichen, daß die Lanzette (216) durch die Lanzettenöffnung (212) vorsteht und daß sich zum Stechen, um Blut zu ergeben, die Spitze zu der Haut hin bewegt; und
- (b) einem Treiber (500) zum Treiben der Lanzette (216), um die Spitze distal zu bewegen, um die Haut zu stechen, wobei der Treiber (500) durch die Haut auslösbar ist, die eine Kraft gegen die Vorrichtung ausübt, wenn die Kraft einen voreingestellten Betrag einer Vorlastkraft überschreitet.
eine Häusung (222) mit dem Treiber (500) zum Bewirken, daß die Lanzettenspitze der Lanzette (216) aus dem Kas settengehäuse (222) ausfährt, wobei die Kassette (210) abnehmbar in der Häusung (222) gehalten ist, so daß die Kassette nach einem Erhalten von Blut entfernt werden kann.
- (a) Bereitstellen einer Vorrichtung mit einer Lanzette (216), die eine Spitze aufweist, die in der Vorrich tung abgeschirmt ist; und
- (b) Drücken der Haut gegen die Vorrichtung, wodurch die Vorrichtung ausgelöst wird, um die Lanzette derart zu treiben, daß die Lanzettenspitze aus der Vorrich tung ausführt, wenn eine voreingestellte Vorlast kraft überschritten wird.
- (a) einer Kassette (210), die folgende Merkmale aufweist
- (i) ein Kassettengehäuse (222) mit einer Lanzetten öffnung (212), durch die eine Lanzette (216) vorstehen kann, und einem Probenfach in der Nä he der Lanzettenöffnung (212);
- (ii) eine Lanzette (216), die in dem Kassettengehäu se (222) gehäust und wirksam mit demselben ver bunden ist, so daß dieselbe treibbar ist, um durch die Lanzettenöffnung (212) zum Stechen der Haut auszufahren, um Blut zu ergeben; und
- (b) einer Häusung (212), die einen Treiber (220) zum Treiben der Lanzette (216) aufweist, um die Lanzette (216) durch die Lanzettenöffnung (212) auszufahren, wobei die Kassette (210) abnehmbar in der Häusung gehalten ist, so daß die Kassette nach der Blutpro bennahme entfernt werden kann, wobei der Treiber (500) eine Spannposition aufweist, die auslösbar ist, wenn die zu stechende Haut auf den Treiber (500) eine Kraft ausübt, die eine voreingestellte Kraft überschreitet, um den Treiber aus der Spann position zu lösen, wodurch die Lanzette (216) zu der Haut hin gedrückt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/985,303 US5871494A (en) | 1997-12-04 | 1997-12-04 | Reproducible lancing for sampling blood |
US08/985,303 | 1997-12-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19855443A1 true DE19855443A1 (de) | 1999-06-17 |
DE19855443B4 DE19855443B4 (de) | 2005-08-18 |
Family
ID=25531358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19855443A Expired - Lifetime DE19855443B4 (de) | 1997-12-04 | 1998-12-01 | Reproduzierbares Stechen zur Blutprobennahme mit Stechvorrichtungen und Verfahren zur Blutprobennahme |
Country Status (3)
Country | Link |
---|---|
US (1) | US5871494A (de) |
DE (1) | DE19855443B4 (de) |
GB (1) | GB2331934B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8287467B2 (en) | 2005-10-08 | 2012-10-16 | Roche Diagnostics Operations, Inc. | Puncturing system |
Families Citing this family (211)
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Also Published As
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DE19855443B4 (de) | 2005-08-18 |
GB2331934B (en) | 2002-11-06 |
US5871494A (en) | 1999-02-16 |
GB9826086D0 (en) | 1999-01-20 |
GB2331934A8 (en) | 1999-12-13 |
GB2331934A (en) | 1999-06-09 |
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