CA2477695C - A device for puncturing patient's skin - Google Patents

A device for puncturing patient's skin Download PDF

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Publication number
CA2477695C
CA2477695C CA2477695A CA2477695A CA2477695C CA 2477695 C CA2477695 C CA 2477695C CA 2477695 A CA2477695 A CA 2477695A CA 2477695 A CA2477695 A CA 2477695A CA 2477695 C CA2477695 C CA 2477695C
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CA
Canada
Prior art keywords
sleeve
puncturing
piston
adjusting member
patient
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.)
Expired - Lifetime
Application number
CA2477695A
Other languages
French (fr)
Other versions
CA2477695A1 (en
Inventor
Andrzej Czernecki
Wojciech Wyszogrodzki
Wojciech Sarna
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.)
HTL Strefa SA
Original Assignee
HTL Strefa SA
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
Priority claimed from PL352649A external-priority patent/PL196284B1/en
Priority claimed from PL352660A external-priority patent/PL196285B1/en
Priority claimed from PL352962A external-priority patent/PL195494B1/en
Priority claimed from PL355740A external-priority patent/PL198081B1/en
Application filed by HTL Strefa SA filed Critical HTL Strefa SA
Publication of CA2477695A1 publication Critical patent/CA2477695A1/en
Application granted granted Critical
Publication of CA2477695C publication Critical patent/CA2477695C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • A61B5/14—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
    • 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
    • A61B5/150053—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
    • A61B5/150167—Adjustable piercing speed of skin piercing element, e.g. blade, needle, lancet or canula, for example with varying spring force or pneumatic drive
    • 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
    • A61B5/150183—Depth adjustment mechanism using end caps mounted at the distal end of the sampling device, i.e. the end-caps are adjustably positioned relative to the piercing device housing for example by rotating or screwing
    • 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
    • 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
    • A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
    • A61B5/150435—Specific design of proximal end
    • 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
    • A61B5/150007—Details
    • A61B5/150885—Preventing re-use
    • A61B5/150908—Preventing re-use by disconnecting components, e.g. breaking or rupturing of connected parts, e.g. piston and rod
    • 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
    • A61B5/15103—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

Abstract

According to the present invention, the device for puncturing patient's skin comprises a sleeve, a push element mounted on one end of the sleeve, a piston with puncturing tip slidably mounted inside the sleeve, and a drive spring positioned between the face of the push element and the piston, where at the other end of the sleeve a cap is mounted, wich thickness determines the depth of skin piercing by the puncturing tip passing through the opening in the cap. According to a variety of the present invention, at the other end of the sleeve a indicating-adjusting member comprising an opening for the puncturing tip is mounted turnably with respect to the axis of the sleeve, wherein the indicating-adjusting member has inwardly directed stair shaped limiting members, wich are hit in operation by the fin of the piston, and has at least one indicator of the pre-set puncturing depth located in a circumferential groove in the lower part of the sleeve with external cut-outs. Preferably the external cut-outs have different widths. According to yet another variety of the present invention, the push element comprises a turnably mounted therein puncturing force adjusting member, wich comprises inwardly directed stair shaped members pressing the push rod of the piston in operation. An advantage of the solution according to the present invention is a fact that the invention enables pre-setting of depth and/or force of puncturing of patient's skin for sampling patient's blood for the sake of diagnostic test.

Description

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(Background of the Invention) 1. Field of the Invention This invention relates to the device for puncturing patient's skin, in particular for blood sampling for the sake of diagnostic tests.
2. Description of the Related .Art The U.Spatent No. 5,356,420 discloses a puncturing device comprising a sleeve Z 5 and a push element positioned at the first end of the sleeve. The other end of the sleeve ends with a bottom with an opening therein. Inside the sleeve a piston is slidably mounted, terminating with a push rod at the end closer to the push button, and with a puncturing tip at the end closer to the bottom opening. Inside the sleeve between the push element face and the piston, a drive spring is located, and between the piston and 2 0 the sleeve bottom a return spring is placed. The piston comprises wings located on its outer perimeter which rest on an internal projection of the sleeve.
The European patent application No. 0885590 discloses a device for drawing blood samples with an adjustable attachment. The attachment is mounted onto the puncturing tip, and comprises a plurality of obliquely positioned grooves which are 25 adapted to be joined with limiting elements on the sleeve external surface.
Depending on the required depth of skin puncture by the lancet, the attachment is turned around its axis to a determined mark relating to the puncturing depth; then a finger is applied to the attachment opening, and the puncturing tip is released. The piercing depth depends on the settabie distance between the lancet and the attachment end.
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"ft....~e~»....~.., n, _, 2' Further, the U. S. patent No. 5,613,978 discloses an adjustable tip for a puncturing device. In this solution setting of the puncturing depth by turning the tip around its a~cis is similar to that of the European patent application No. 0885590. The puncturing tip in the course of -puncturing hits with its face surface against the flat face surface of the distal end of a cylindrical sleeve comprising an opening for the lancet in its wall.
Moreover the adjustable tip has an intermediate cylindrical ring with adjusting screw members.
Further, the European patent application No. 1142534 discloses an assembly for adjusting the puncturing depth of a device comprising a sleeve, a piston with a puncturing tip slidably mounted in the sleeve, and a drive spring located between the push element face and the piston; wherein on the other sleeve end an adjustment ring is mounted with an opening for the puncturing tip, the adjustment ring having inwardly directed two.half ring members, oblique or stair shaped limiting members, which are hit by the piston fin in operation. Moreover, on the side surface of the adjustment ring a mark is located, while on the sleeve outer surface the scale of the puncturing depth is placed.
(Summary of the Invention) y According to the present invention, the device for puncturing patient's skin comprises a sleeve, a push element mounted on one end of the sleeve, a piston with puncturing tip slidably mounted inside the sleeve, and a drive spring positioned between the face of the push element and the piston, where at the other end of the sleeve AMENDED S~IEET
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~~~. r 3' an indicating-adjusting member comprising an opening for the puncturing tip is mounted turnably with respect to the axis of the sleeve, wherein the indicating-adjusting member has inwardly directed stair shaped limiting members, which are hit in operation by the fin of the piston, and has at least one indicator of the pre-set puncturing depth located in a circumferential groove in the lower part of the sleeve with external cut-outs.
Preferably the external cut-outs have different widths.
According to yet another variety of the present invention, the push element comprises a turnably mounted therein puncturing force adjusting member, which comprises inwardly directed pair of oblique half ring members pressing the push rod of the piston in operation.
According to yet another variety of the present invention, the push element comprises a turnably mounted therein puncturing force adjusting member, which comprises inwardly directed stair shaped members pressing the push rod of the piston in . , : . ~ operation: Y
An advantage of the solution according to the presenf invention is a fact that the invention enables pre-setting of depth andlor force of puncturing of patient's skin for sampling patient's blood for the sake of diagnostic tests.
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4' (Brief description of the drawings) The accompanying drawings, which are incorporated in, and form a pan of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the invention. In the drawings:
Fig 1 shows longitudinal section of the first embodiment of the puncturing device according to the invention;
Fig 2 shows view of the indicating-limiting member of the device of the Fig. 1 with limiting elements and indicators;
Fig 3 shows general view of the device of the Fig. 1 with cut-outs for the indicator of the puncturing depth; .
Fig 4 shows longitudinal section of the second embodiment of the puncturing device according to the invention;
Fig 5 shows view of the adjusting member for adjustment of the puncturing force with a pair of oblique half ring members for the device from the Fig. 4;
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5' Fig 6 shows longitudinal section of the third embodiment of the puncturing device according to the invention; and Fig 7 shows view of the adjusting member for. adjustment of the puncturing force with stepped elements for the device of the Fig. 6;
whereas the same elements of the puncturing devices depicted on the drawing have the same designations.
(Detailed description of the Invention) Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.
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Yy~ .~~ , k.,v.. t.cHa .u.: *.SV .n, a... .,5. n 1., r",r .. -6' The device for puncturing the patient's skin~in the first embodiment shown in the Fig. 1 and 2 comprises the sleeve (1) and the push element (2) which is mounted on one of the sleeve (1) ends, and surrounds it on a substantial length. On the other end on the sleeve (1) an annular indicating-adjusting element (26) with an opening (27) therein is . 5 mounted turnably with respect to the axis of the sleeve (1). Inside the sleeve (1) the piston (5) is slidably inserted, which at the end proximal to the push element (2) ends with the push rod (6), and at the end proximal to the annular indicating-adjusting element (26) ends with the fin (7) with the puncturing tip (8). Inside the device between the face (9) of the push element (2) and the piston (5) the drive spring (10) is disposed, while inside the sleeve (1) between the piston (5) and the annular indicating-adjusting element (26) the return spring (11) is positioned.,The piston (5) has in its upper portion outwardly directed wings (12) which rest on the upper edge (13) of the sleeve (1). The annular indicating-adjusting element (26) with the opening (27) therein for the puncturing tip (8) has stair shaped limiting - members (28, 29) directed into the interior of the sleeve ( 1 ) which enable stepping adjustment of the puncture depth. Moreover the indicating-adjusting element (26) has indicators (30, 31) of the set puncture depth, which are positioned in a circumferential groove (32) in the lower portion of the sleeve (1) with external cut-outs (33, 34, 35), and are visible through the said cut-outs.
Preferably the cut-outs (33; 34, 35) in the sleeve (1 ) have different widths, as shown in the Fig. 3.
Operation of the device according to this embodiment of the invention is as follows. The positioning of the device elements before use is.shown in Fig. 1.
The wings (12) of the piston (5) rest on the upper edge (13) of the sleeve (1) due to the pressure of the drive spring (10). Thus the piston (S) with the puncturing tip (8) is held in the first stable position. Pressing the push element (2) causes compression of the drive spring (10) 2 5 until the face (9) of the push element (2) abuts against the push rod (6) of the piston (5).
Further pressing of the push element (2) results in. breaking off the wings (12) of the piston (5), and the drive spring (10) driving the piston (5) causes the fm (7) of the piston (5) to hit the internal member (14) limiting the puncturing depth, and the puncturing tip AMENDED SHEET
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(8) passes through the opening (4) of the ca.p (3), and punctures the patient's skin to the depth pre-determined by the thickness of the cap (3). ' Next the return spring (11) withdraws the piston (5) with the puncturing tip (8), which assumes the second stable position inside the sleeve (1). When the wings (12) of the piston (5) are broken off, subsequent re-use of the device is not possible.
The depth of penetration of the patient's skin is set by turning the indicating adjusting element (26) around the device axis, preferably in steps using a ratchet mechanism. This way the setting of the stair shaped limiting members (28, 29) is changed t.
. with respect to the fm (7) of the piston (5), and the depth of ,penetration of the patient's body by the puncturing tip (8) when the fin (7) of the piston (5) hits the said stepped limiting members. Moreover simultaneously the position of the penetration depth ' indicator (30, 31) changes, what is visible in one of the external cut-outs (33, 34, 35) in the sleeve (1), showing the depth of the puncture.
The device for puncturing the patient's skin in the second embodiment shown in the Fig. 4 comprises the sleeve (1) and the push element (2) which is mounted on one of the sleeve ends, and surrounds it on a substantial length. On the other end the sleeve ends with a limiting member (36) with an opening (37). Inside the sleeve (1) the piston (5) is slidably inserted, which at the end proximal to the push element (2) ends with the push rod (6), and at the end proximal to the limiting member (36) ends with the Fm (7) with the puncturing tip (8). Inside the device between the face (9) of the push element (2) and the , piston (5) the drive spring (10) is disposed, while inside the sleeve (1) between the piston (5) and he other end of the sleeve (1) the return spring (11) is positioned.
The piston (5) has in its upper portion outwardly directed wings (12) which rest on the upper edge (13) of the sleeve (1). Moreover the push element (2) has a puncturing force setting element (38) which has inwardly directed pair of oblique half ring members (39, 40) pressing the push rod (6) of the piston (5) in operation. The setting element (38) with the pair of oblique half ring members (39, 40) is shown in a generalwiew in the Fig. 5.
Operation of the device according to this embodiment of the invention is following. The positioning of the device elements before use is shown in Fig.
4. The AMENDED SHEET
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. .~ - A.~. ,~t. M.. ,- ...- .~,-...~.>.,~_ 8i wings (12) of the piston (5) rest on the upper edge (13) of the sleeve (1) due to the pressure of the drive spring (10). Thus the piston (5) with the puncturing tip,(8) is held in the first stable position. Pressing the push element (2) causes compression of the drive spring (10) until the pair of the oblique half ring members (39, 40) of the setting element (38) of the push element (2) abuts against the push rod (6) of the piston (5).
Further pressing of the push element (2) results in breaking off the wings (12) of the piston (S), and the drive spring (10) driving the piston (5) causes the fin (7) of the piston (5) to hit the member (36) limiting the puncturing depth, and the puncturing tip (8) passes through the opening (37) of the limiting member (36), and punctures the patient's skin. Next the return spring (11) withdraws the piston (5) with the puncturing tip (8), which assumes the second stable position inside the sleeve (1).
Adjustment of the patient's skin puncturing force is accomplished by turning the setting element (38) 'around the device axis, preferably in steps using a ratchet mechanism. This way the distance of the oblique half ring members (39, 40) from the push rod (6) of the piston (5) is changed, and hence the initial biasing force of the drive spring (10) at the moment of breaking the wings (12) off the piston (5), and hence the value of the force with which the puncturing tip (8) will pierce the patient's body.
The device for puncturing the patient's skin in the third embodiment is shown in the Fig. 6. This device is essentially built of the same elements as the device of the Fig. 4, 2 0 but the push element (2) has differently shaped turnably mounted therein piercing force setting element (41) which has inwardly directed stair-shaped members (42, 43) pressing the push rod (6) of the piston (5) in operation. This setting element (41) with stair-shaped members (42, 43) is illustrated in a general view in the Fig. 7.
The operation of the device according to this embodiment is same as that of the 2 5 device shown in the Fig. 4, and the setting of the patient's skin piercing force is also accomplished by turning the setting element (41) around the device axis. In this embodiment turning of the setting element (41) changes the distance of the pair of the stair-shaped members (42, 43) from the push rod (6) of the piston (5), and hence the initial biasing force of the drive spring (10) at the moment of breaking the wings (12) off AMENDED SHEET
AMENDI=D SHEET
1:, .:~:;, N, y k S.~~a~ p'~ N . Va 4 t.' E i z -a Ai r . ~ ~ , ~T ~.. .~~ .fl '01 0 71.3:'1 D~, ~ P . f..
3,E,P 3 . ~I/lD .._., ~J ...~ <w, ~~.,... ~ F.:.<"
<z.~,~....M... x. :.t_.>__. .._.. _,.....
9.
the piston (5), and hence the value of the force with which the puncturing tip (8) .will pierce the patient's body.
~.
Ai~IENi)ED SHEET
~z c '~» ~ AMENDED SHEET ~ fl~ 4~.~~~fl'~j

Claims (4)

CLAIMS:
1. A device for puncturing patient's skin comprising a sleeve, a push element having a face and mounted on one end of the sleeve, a piston with puncturing tip slidably mounted inside the sleeve and having a fin and a push rod, and a drive spring positioned between the face of the push element and the piston, characterized in that at the other end of the sleeve an indicating-adjusting member, comprising an opening for the puncturing tip and comprising inwardly directed stair shaped limiting members, which are hit in operation by the fin of the piston, is mounted turnably with respect to the axis of the sleeve, wherein the indicating-adjusting member has at least one indicator of the preset puncturing depth located in a circumferential groove in the lower part of the sleeve with external cut-outs.
2. A device according to Claim 1 wherein the external cut-outs in the sleeve have different widths.
3. A device according to Claim 1 or 2, characterized in that the push element comprises a turnably mounted puncturing force adjusting member, which comprises inwardly directed pair of oblique half-ring members pressing the push rod of the piston in operation.
4. A device according to Claim 1 or 2, characterized in that the push element comprises a turnably mounted puncturing force adjusting member, which comprises inwardly directed stair shaped members pressing the push rod of the piston in operation.
CA2477695A 2002-03-06 2003-03-05 A device for puncturing patient's skin Expired - Lifetime CA2477695C (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
PL352649A PL196284B1 (en) 2002-03-06 2002-03-06 Pricking device with indication of the set prick depth
PLP.352649 2002-03-06
PLP.352660 2002-03-07
PL352660A PL196285B1 (en) 2002-03-07 2002-03-07 Pricking device with prick depth adjustment
PL352962A PL195494B1 (en) 2002-03-22 2002-03-22 Pricking device with variable pricking depth
PLP.352962 2002-03-22
PLP.355740 2002-08-28
PL355740A PL198081B1 (en) 2002-08-28 2002-08-28 Puncturing instrument with adjustable puncture force
PCT/PL2003/000019 WO2003073936A2 (en) 2002-03-06 2003-03-05 A device for puncturing patient's skin

Publications (2)

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CA2477695A1 CA2477695A1 (en) 2003-09-12
CA2477695C true CA2477695C (en) 2011-01-04

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CA2477695A Expired - Lifetime CA2477695C (en) 2002-03-06 2003-03-05 A device for puncturing patient's skin

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US (1) US20050222599A1 (en)
JP (1) JP2005518858A (en)
KR (1) KR100673111B1 (en)
AU (1) AU2003217084A1 (en)
CA (1) CA2477695C (en)
DE (1) DE10392369B4 (en)
GB (2) GB2413964B (en)
WO (1) WO2003073936A2 (en)

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KR20040088513A (en) 2004-10-16
GB0419939D0 (en) 2004-10-13
GB2401552A (en) 2004-11-17
GB2413964A (en) 2005-11-16
KR100673111B1 (en) 2007-01-22
DE10392369T5 (en) 2005-04-07
WO2003073936A3 (en) 2004-03-18
GB0514784D0 (en) 2005-08-24
JP2005518858A (en) 2005-06-30
DE10392369B4 (en) 2011-12-15
GB2413964A8 (en) 2006-04-12
US20050222599A1 (en) 2005-10-06
GB2413964B (en) 2006-02-08
WO2003073936A2 (en) 2003-09-12
GB2401552B (en) 2006-01-25
AU2003217084A1 (en) 2003-09-16
CA2477695A1 (en) 2003-09-12

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