WO2004043258A1 - Needle insertion tool - Google Patents

Needle insertion tool Download PDF

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Publication number
WO2004043258A1
WO2004043258A1 PCT/JP2003/013678 JP0313678W WO2004043258A1 WO 2004043258 A1 WO2004043258 A1 WO 2004043258A1 JP 0313678 W JP0313678 W JP 0313678W WO 2004043258 A1 WO2004043258 A1 WO 2004043258A1
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WO
Grant status
Application
Patent type
Prior art keywords
needle
yuni
portion
housing
rear
Prior art date
Application number
PCT/JP2003/013678
Other languages
French (fr)
Japanese (ja)
Inventor
Satoru Tominaga
Mamoru Kanno
Original Assignee
Sekisui Chemical Co., Ltd.
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

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/151Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15186Devices 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
    • A61B5/15188Constructional features of reusable driving devices
    • A61B5/1519Constructional features of reusable driving devices comprising driving means, e.g. a spring, for propelling the piercing unit
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150015Source of blood
    • A61B5/150022Source of blood for capillary blood or interstitial fluid
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150053Details 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
    • A61B5/150106Means for reducing pain or discomfort applied before puncturing; desensitising the skin at the location where body is to be pierced
    • A61B5/150152Means for reducing pain or discomfort applied before puncturing; desensitising the skin at the location where body is to be pierced by an adequate mechanical impact on the puncturing location
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150175Adjustment of penetration depth
    • A61B5/150183Depth 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150412Pointed piercing elements, e.g. needles, lancets for piercing the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150503Single-ended needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150801Means for facilitating use, e.g. by people with impaired vision; means for indicating when used correctly or incorrectly; means for alarming
    • A61B5/150824Means for facilitating use, e.g. by people with impaired vision; means for indicating when used correctly or incorrectly; means for alarming by visual feedback
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/151Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101Details
    • A61B5/15103Piercing procedure
    • A61B5/15107Piercing being assisted by a triggering mechanism
    • A61B5/15113Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/151Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101Details
    • A61B5/15115Driving 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
    • A61B5/15117Driving 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/151Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15186Devices 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14532Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement

Abstract

A needle insertion tool has a front plunger (3) axially movably provided near a fore-end of and in a housing (1) and having an insertion needle (42), a rear plunger (5) provided behind the front plunger so as to be axially movable in the housing, a front spring (6) for pulling backward the front plunger, and a rear spring (7) for pushing forward the rear plunger. The insertion needle can be instantly, forcibly projected a cap (2) and then reversed, so that a moving distance of the front plunger with the insertion needle can be reduced. This solves a problem such as the microvibration of the needle and a measuring instrument or the microvibration and shock of the springs being transmitted to a fingertip for a long time, dulling a patient’s pain as much as possible.

Description

Puncture tool technology field

The present invention is, for example, relates to a puncture device used when taking blood upon blood tests from the body part, such as a fingertip.

Akira BACKGROUND fine

Recently, diabetes is increasing, a method of patient self-et is measure and manage blood sugar using a blood glucose meter is becoming the mainstream. Patients Upon measurement takes blood for measurement from their fingertips, but this time, piercing the needle into the fingertip of the skin using the puncture device having a puncture needle, squeeze out blood by compressing the peripheral puncture.

Conventional 穿剌 device is a plunger with a puncture needle tip is advanced one Koirupane in housings within ring, it was to puncture the needle into the fingertip surface. However, in this structure to adjust the biasing force of the panel to provide a large protruding Shi force to the needle during puncturing needle Nari rather difficulty back into the housing, such that the needle in the opposite returns to ensure in the housing Then since the puncture can be large ejection force can not be obtained, prone to pain to the patient on the use without permission is bad.

Recently, puncture device configuration that biases using separate panel with a plug changers having a puncture needle and the distal end direction and the rear end direction have been proposed and are commercially available (JP-2 0 0 0 2 4 5 7 1 7 JP). However, in the case of puncture Again puncture thorn instrument painful to the patient.

Matala Sets in pushing mechanism a puncture device having also been proposed (JP 3 1 4 1 9 2 9 JP). However, in this puncture device has a drawback not brought quickly pop the puncture puncture needle from the housing distal end. JP 2 0 0 0 - 2 4 5 7 1 7 No. cause pain caused to the patient during the puncture puncture device configuration publications are considered as follows. Chi words, the puncture device, since the puncture needle provided to the tip the retraction and advancement of one plug changers are configured to return to protrude incidentally housings from the housing, the puncture needle on the fingertip surface if the urging force of the panel to advance the plastic changers in Ru to is, must be much larger than the biasing force to retract the plug Nji turbocharger scratch. When the urging force of the panel to retract the plunger one is small, when the needle is returned from the fingertip, will be fingertip receive a long time the micro-vibration of the needle and the instrument, this is leads to pain. Further, since the biasing force of the return when the puncture needle is switched back from the protruding small, the switching must be done at the time of elongation degree extent there is a spring, the movement distance of the plug Nja over resulting in the housing longer, easier micro-vibration or shock of the panel is transmitted to the fingertip, which becomes the cause of the pain.

An object of the present invention has been made in view of the above circumstances, to enhance the return force of the plug Nji yer with a puncture needle to shorten the movement distance, the fine vibration properly needles and instrument panels micro-vibration or shock it is to be no and Tsutawaruko long time the fingertip is to provide a puncture instrument as possible out as much as possible relieve pain experienced by the patient has.

Incidentally, throughout the claims and the specification, and the tip direction is to not forward direction the needle during puncturing protrudes from the puncture device, refers to the left direction in ie Figure 2 and 1 0, vertical and horizontal relationship are based on FIG. 2 and 1 0. Disclosure of the Invention

The present invention has been solved Subeku devised the above problems.

First piercing device according to the invention is constituted by cylindrical body having a rear end wall (11) and having a projection (12) before the front portion inner surface, a rear projection after the previous projection (12) (13) has a housing (1) having a piercing operation unit (14) and Kosu bets flange (15) on the side,

The housing is provided on the tip portion (1) and having a needle passage hole (21) in the central end, and Canon-up (2) to the rear end surface constitutes front be sampled collar (22), the housing (1) near the tip end of the inner, is arranged so as it is movable in the axial direction is prevented from retracting Te before projection (12) Niyotsu while being prevented by connexion advance before be sampled Tsu Pas (22) the annular front plastic Nja-over and (3),

Before the tip portion of the plunger (3) it is detachably mounted, and before flop La changers (3) of the needle passing through the hole (21) Canon-up of Canon-up (2) with the back-and-forth movement ( a needle Yuni' bets from 2) is infested with 穿剌 needle (42) (4) disposed movably ability before at after the plunger (3) in the housing (1) in the axial direction, and front plug changers (揷通 can tip in the ring 3) has a (51), Kosu bets collar (15) engages the puncture operating part (14) be sampled collar (15 rear by operation of the housing (1) ) has been engaging portion is a (53) leaves the housing (1) rear wall (11) through the the plug changers (5) after having operated Rod projecting rearward (52) of ,

Before the plunger (3) Plastic Nja over engaging portions before provided to the ring inner surface of the (32),

Tip provided on the side of (51), and pre-flop la Nja first engagement portion (32) and the plug Nja over engaging portions after that engagement and disengagement of the rear plunger chromatography (5) and (5 4),

Before Plastic changers and (3) provided over between the projection (13) of the housing (1), and a spring (6) before the previous pulling plug changers and (3) to the rear, the rear plug changers (5 ) and it is interposed between the housing (1) rear wall (11), and you and a spring (7) after pressing the rear plug Nja chromatography (5) forward, a puncture device.

In the first piercing device, the housing (1) before the protrusion (12) and, or calibration Tsu before be sampled collar flop (2) (22) is rather to preferred are composed of shock absorbers. Second piercing device according to the invention,

Cylindrical body having a push button hole (113) and (115), removably attached to the distal end of the barrel cylinder and the wire carrier-up having a needle passage hole (111) to the tip (11 2), the cylindrical body member is externally, and a body cover (117) that have a push button facing the push button hole (116), from a charge case which is provided to freely move back and forth on the rear end portion of the cylindrical body member (118) to the housing (101 ) is configured, in the housing, the tip needle Yuni' preparative (119) detachably held in, and pushes the needle Yuni' preparative forward needle push rod (123) of the needle Yuni' you want to slidably hold the front and rear holder (120) is housed freely moved back and forth relative to the housing,

Needle Yuni' preparative holder provided so as to prevent advancement of the needle Yuni' Tohoruda one Hamama silicon in the push button hole at a variable locking projections in and out direction (121) is retracted state of the holder one by elasticity,

Urging the same holder one between barrel cylinder and the needle Yuni' Tohoruda one with the main spring urged forward (124) is interposed, the same holder to the rear between the needle Yuni' Tohoruda one and Chiya Jikesu assisting panel (122) is interposed,

The charge case is this needle Yuni' Tohoruda the auxiliary spring with give biasing force for advancing the needle Yuni' bets holder main panel by retracting against the cylindrical body member - gives biasing force for retracting the,

The main panel is by the this disengaging the locking projection by operating the push button from the push button holes, to advance the needle Yuni' preparative holder by forward biasing force, the needle Yuni' bets puncture needle (125) from the needle passing hole projected to, capturing assistant spring, the forward needle Yuni' door holder is retracted by the back with force, met with puncture needle in calibration Tsu in-flops,

Banesu DOO flange to the cylindrical body member (114) is provided on the inwardly protruded, Banesu DOO Tsu path is re re Ichisu main panel during forward needle Yuni' Tohoruda one to suppress within Tokoro constant length of, a position the front end of the main panel hits a puncture device. Preferred correct aspects of the second puncture device is

The housing, the needle Yuni' preparative push piece having an inner projection (152) (151) is provided slidably back and forth,

Movable piece tiltable inwardly projecting portion (153) is rotatably supported, while the rear end portion of the movable piece and the needle Yuni' Tohoruda one, in the direction leading end of the movable piece is in contact with the needle pushrod those movable piece pivoting spring (154) is interposed for biasing and pivoting the movable piece,

The movable piece, the needle Yuni' door push piece Ri by the and this pushed forward to stake the urging force of the movable piece rotating panel, needle push rod and in contact with press this forward, it has been used needle Yuni' discharging the bets from needle Yuni' Tohoruda one, then is returned to its original position by the urging force of the movable piece pivot spring, the rear portion of the movable piece rotating panel is disposed within the capturing auxiliary spring, in the puncture tool is there.

More preferred correct aspect of the second puncture device is to be et al., A puncture device in which an intermediate portion of the movable piece rotating panel is passed through the inside of the main panel. Another preferred correct aspect of the second puncture device is Ri puncture device der to TogaTsuta forward tip surface large number of leaflets projection (178) is provided, the yo Ri Specifically, the front end of the housing in part, the tip cover one (176) having a plurality of cusp projections pointed forward tip surface is a puncture device which is provided.

The shape of apex projection is to preferred rather is conical or pyramidal shape. Toga突 part of the municipal district preferred height 0. 3 to 0 7 mm, and more preferred properly 0:... A ~ 0 6 mm.. The height of the multiple 穿剌 device may be also a random be uniform. The number is preferred to rather ho 5 to 5 0 of the projection apex, is good Ri preferred municipal district is 8 to 35. Placement of Toga突 at the distal surface of the distal end cover may be a random, or may be a specific pattern. This pattern concentric, there may radially like. BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a perspective view showing a disassembled state of the piercing device according to the first embodiment. Figure 2 is a longitudinal sectional view of the puncture device in a state before puncturing operation. Figure 3 is a longitudinal sectional view of the puncture instrument showing a state in which to engage with the Kosu preparative Tsu Pas (15) of the locking portion by pulling the rear Blanc jar (5) rearward (53) housing (1) it is.

Figure 4 is a longitudinal sectional view of the puncture instrument engaging portion (53) indicates the state of being detached from the scan preparative collar (15) after the Hau Managing (1) of the rear plug changers (5).

Figure 5 is a rear plunger (5) is pushed forward by the rear spring (7), before the scan Settsu path of the front end surface Canon-up before Plastic Nja chromatography (3) (2) (22) This it is a longitudinal sectional view of the puncture instrument showing a state in which advanced to the barrel.

Figure 6 is a longitudinal sectional view of the puncture instrument showing a state where the recess has exited forward of the projections is pre bra Nja over engagement of the rear plug Nja first engagement portion (54) (32).

Figure 7 is a front bra changers (3) is pulled backward by the front spring (6), is a longitudinal sectional view of the puncture instrument showing a state where the puncture needle (42) is returned to the wire carrier-up (2) in .

Figure 8 is a perspective view of a piercing device according to the second embodiment.

Figure 9 is a perspective view showing a disassembled state of the puncture tool.

Figure 1 0 is a vertical longitudinal sectional view of the puncture device showing a state before puncturing starting operation. Figure 1 1 is a vertical longitudinal sectional view of the puncture instrument showing Chiya one di state. Figure 1 2 is a vertical longitudinal sectional view of the puncture instrument showing a standby state.

Figure 1 3 is a vertical longitudinal sectional view of the puncture instrument showing puncture state.

Figure 1 4 is o a vertical longitudinal sectional view of the puncture instrument showing needle Yuni' bets discharge state

Figure 1 5 is a perspective view showing a disassembled state of the front end of the puncture tool. Figure 1 6 is a vertical longitudinal sectional view of the puncture instrument showing puncture state. BEST MODE FOR CARRYING OUT THE INVENTION

Next, specifically described based on the illustrated embodiment of the present invention. Example 1 to the first piercing device, the second embodiment respectively corresponding to the second puncture device.

Example 1

In 1 to 7, the housings (1) are synthesized made of resin, formed of a cylindrical body having a rear end wall (11), and the front portion inner surface has an annular front projection (12) , that before having a projection (13) after an annular after projection (12). Previous projection (12) is made of rubber so as to be able to absorb the shock. Both the the deviation of the rear side of the housing (1) puncture operating part (14) is formed by the arc slightly bent outward tongues and mosquitoes tool preparative sidewalls tongue, the mosquitoes tool DOO rear-facing end surface of the edge that has been made and the rear be sampled Tsu path (15). Puncturing operation unit (14) is elastically deformable in inward and outward directions. The center of the rear end wall (11) of Haujin grayed (1) is opened is Rod passage apertures operation Rod rear plug changers (5) (5 2) has a diameter which can 揷通 (16) there. Housing (1) also serves as a grip portion when using the puncture tool.

Caps (2), by its external thread portion (23) is screwed into the female screw portion of the distal end of the housing (1) (17) are provided inside the housings (1). Canon Tsu the central tip of the flop (2) needle (42) are opened needle passage hole (21) having a wear diameter 揷通. The rear end portion of the caps (2) forms a step between the inner surface of the housing (1), the rear end face of the caps (2) constituting the front be sampled Tsu Pas (22). Before it is sampled Tsu path of caps (2) (22) is made of rubber so as to be able to absorb the shock.

Before Plastic changers (3) consists of a slightly smaller short annulus of synthetic resin having an outer diameter or the cylindrical body than the inner diameter of the housings (1). This is arranged near the tip end of the housing (1), with is a mobile available-axially, are prevented forward by previous scan Settsu Pas (22) of the caps (2), the housing blocking is to retreat by the front projection (12) of (1).

Before the front end of the plunger (3) bridge portion (33) is provided, et al are diametrically to the axis of the central or leading bra Nji catcher over the bridge portion (33) (3). Small cylindrical portion (34 ) is provided in the axial direction.

Needle Yuni' Doo (4) includes a cylindrical needle holding member (41), it becomes from a puncture needle provided in the front protrusion to the front end surface (42), the rear end portion of the needle holding member (41) There are detachably attached before the small cylindrical portion of the bra changers (3) to (34).穿剌 needles of the needle Yuni' bets (4) (42) Canon-up (2) or al infested through a needle passage hole (21) accompaniment with Canon-up (2) to the back-and-forth movement of the front bra changers (3) to.

Rear plunger (5) is also made of a synthetic resin cylindrical body slightly with small again outside diameter than the inside diameter of the housing (1). This prior movably disposed axially in the housing (1) in following the bra Nja chromatography (3), and having an insertable tip in the ring (51) before the plug changers (3). The deviation of the sides of the rear plug changers (5) is elastically deformable locking portion (53) is formed by slightly bending the outer tongue and force Tsu preparative sidewalls tongue. This is, after it has been engaged in Kosu door Tsu path of housings (1) (15), is detached from the puncture operation unit by the (14) go-between after be sampled saliva (15). The rear end surface of the rear plunger (5), the operation opening head which projects rearward (52) is provided through the mouth head passage holes housings (1) and (16). Notch which opens in the distal direction to the distal end sides of the rear plug changers (5) (51) (55) is formed. Notch (55) of the bridge portion of the front-flops La changers (3) (33) has a width that put Ri Hamama.

Before first engagement portion plunger (32), a pair of recesses formed in the circumferential direction to the ring inner surface of the front plan di catcher chromatography (3).

Rear plug Nja first engagement portion (54) includes a pair of tongue portions formed on the side of the front end portion of the rear plug Nja one (5) (51), formed in the circumferential direction on the tip outer surface of the tongue It consists of a has been ridge, tongue is elastically deformable in inward and outward directions. These projections are recesses and engagement and disengagement of the front plug Nja first engagement portion (32).

Rear panel (7), a rear plug Nja chromatography (5) A compression Koirupane pushing forward, after the operation Rod (52) is wound so rear plug Nja chromatography (5) and c Ujingu (1) It is interposed between the end wall (11). The biasing force of the rear panel (7), a rear plug Nja chromatography (5) is pushed forward by the rear spring (7), the front end face Canon-up (2) bra changers (3) prior to work with this after those Tatsuta before be sampled Tsu Pas (22), ridges previous plunger engaging portion of the rear plug Nja first engagement portion (54) from the recess (32) exits forward, these engagement as is solved, it has been set.

Before spring (6) is a front pull Ku tensile Koiruba Ne plug changers and (3) to the rear, the front end is fixed before the plug changers (3), rear end projection of the housing (1) ( It is fixed to 13). Biasing force of the previous spring (6), the engagement of the rear plastic changers (5) to advance the first engagement portion rear plan manager to jar good of the above (54) and before Buranja first engagement portion (32) but after it has been released, as before pulling back plug Nja over the (3) to the rear, is set.

Puncturing operation of the first piercing device is carried out as follows.

First, in the puncture device in a state before puncturing operation shown in FIG. 2, plug Nja first engagement portion of the rear Bra changers (5) (54) before first engagement portion front plug Nja bra changers (3) ( disengaged from 32), the locking portion of the rear plan di catcher chromatography (5) (53) is disengaged from Kosu preparative Tsu pa Haujingu (1) (15). Before Plastic changers (3) is retracted relative to the rear plug changers (5), the latter tip (51) is 揷入 inside the caps (2). In this case, so as to avoid the interference of both's former bridge portion (33) data into IDL Ri Hamama within notch latter (55).穿剌 needle (42) is housed in a Canon-up (2).

From this state, as shown in FIG. 3, the operation opening head maximum distance pull backward to pile the urging force of the rear (52) spring (7), a rear plug Nji catcher chromatography (5) pre plunger ( 3) is retracted relative to, with fitted rear plug Nja first engagement portion ridges (54) in a recess of the front plug Nja first engagement portion (32), the locking portion of the rear plug changers (5) (53) the engaged to Kosu preparative Tsu Pa (1 5) of Haujingu (1).

Then, Remind as in FIG. 4, by pushing the puncturing operation unit housings (1) (14) inward, the engaging portion of the plug Nja chromatography (5) after which is located inside (53) Haujingu ( 1) Kosu Settsu to disengage from the path (15). This withdrawal, as shown in FIG. 5, the rear plug Nja chromatography (5) and prior to communicating dynamic thereto Plastic changers (3) is pressed into by Ri forward biasing force of the rear spring (7), before plug Nja front end surface of one (3) until it hits before be sampled saliva (2 2) of Canon-up (2), to move forward. Before the moment plunger one of (3) hits the front scan the collar (22), the puncture needle (42) projects forwardly through the needle passage hole (21) of the wire carrier-up (2), is punctured the fingertip .

After Before plunger (3) hits the front be sampled Tsu Pas (22), a rear Bra changers (5) is urged forward by a rear spring (7), as a result, as shown in FIG. 6 , the ridges before bra down Ja first engagement portion of the rear plug Nja first engagement portion (54) from the recess (32) exits forward, both the engagement is released.

The disengagement at the same time, by sea urchin shown in FIG. 7, the front plug changers (3) is pulled backward by the biasing force of the front spring (6), needle (42) is finger

Drawn from 0 back to the caps (2) in it, the piercing device is Minru 0 Example 2 in the state of FIG. 2

In 8 to 1-6, the second piercing device is provided with housings (101), inside the matches are needle Yuni' preparative back-and-forth movement mechanism (102) and needle Interview two Tsu preparative discharge mechanism (103), the housing It is constructed from pain provided at the front end release mechanism (107).

Housing (101), the cylindrical body having a push button hole (113) in the upper and (115), removably attached to the distal end of the cylindrical body member (115), and a needle passage hole in the distal end surface central (111 ) and Canon-up (112) with, the armor on the cylinder barrel (115), and a body cover one having a push button facing the push button hole (113) (116) (1 17), the cylindrical body member ( It is constructed from the forwardly and rearwardly movably provided et the charge case (118) with respect to the cylindrical body member at the rear end portion 115). The rear end portion of the wire carrier-up (112) is placed over fitted removably to the front end of the cylindrical body member (115), the front end of the switch catcher one Jikesu (118) is cylinder cover - to the rear end of the (117) It is covered with fitted.

Cylindrical body member (115) an alien a bottomed cylindrical shape, a pair of upper and lower square bar portion of the needle Yuni' Tohoruda one (120) to the rear end wall portion (171) (165) (166), the movable piece Kaidoba Ne (154) and its hole through which the locking projection (169) (172) is opened, receiving a rear end of the main panel (124) in front of the rear end wall portion (171).

Push button provided on the upper portion of the body cover (117) (116) is. Formed of an elastically deformable material, provided Quai one single unit and to (182) inwardly projecting and push button hole ( It becomes because the downward tongue portion (183) facing the 113), the tongue portion (183) enters the push button hole (1 13) by pressing the casing portion (182) downward. Chiya one Jikesu (118), after being pulled backward with respect to the cylindrical body member (115), this state is maintained. Cha Jikesu (118) of the annular catching auxiliary bus for receiving the front end of the length central portion on the inner surface auxiliary panel (122)

1 Ne front bearing piece (161) is fixed, a pair of upper and lower square bar portion of the needle Yuni' preparative holder (120) in the ring (165) (166), the movable piece rotating panel (154) and the locking projection (169) is in communication.

Banesu DOO Tsu path to the cylindrical body member (115) (114) that provided inwardly protruded. Banesu Doo collar (114) is a cylindrical body member (115) formed with a plurality on an inner surface of the separate Ketsuri ring of (158), Ketsuri ring the (158) on the outer surface of the cylinder barrel (115) with Komu fitted in the concave groove (159) formed in the circumferential direction, by trying to insert it into the groove a plurality of through holes formed in the (159) (160) to Banesu Settsu Pas (114), the cylindrical body member provided inwardly projecting shape (115). Ketsuri in g (158) since the body cover one (117) is fitted on the cylindrical body member (115), not come out of the groove (159). Banesu Doo Tsu Pas (114), a re-lease to be limited to within a predetermined length of the main spring during advancement of the needle Yuni' walk Ruda (120) (124), the front end strikes the position of the main spring (124) is there.

It is configured as a needle Yuni' preparative back-and-forth movement mechanism (102) Hatsugi. As described above, the push button hole (113) and the push button facing this (116) to Banesu Settsu Haujingu having a path (114) (101) in the parallel beauty, detachably needle Yuni' bets (119) to the tip holding, and needle Yuni' preparative holder one having needle Yuni' preparative (119) to freely needle press slide rod (123) pushing forward (120), it is accommodated to freely move back and forth relative to the housing. Needle Yuni' preparative (119) is a cylindrical, needle at its distal end surface center (12 5) is mounted et the front projecting. Second half of the needle Yuni' bets (119) (104) are housed in needle Yuni' preparative holder bottomed cylindrical Yuni' preparative holding portion formed at the front end portion of the (120) (162) within.

Needle pushrod (123) is composed of a disc portion and a T-shaped sliding part provided perpendicularly to the rear face of this, the horizontal portion of the sliding portion (181), Yuni' Doo holding portion (162) slidably disposed in the formed long hole (18 0) in so as to extend rearward from the rear wall portion of the rear end surface of the rear half of the circular plate portion needle Yuni' preparative (119) (104) and Yuni' sandwiched between the rear wall portion of the preparative holding portion (162).

Flexible portion extending rearward to the upper portion of the two-needle Yuni' preparative holder (120) (164) gar body to provided, the locking projection (121) is formed outwardly protrude at the tip. Locking projections (121) are internal and external direction, i.e. movable in the radial direction by the elasticity of the flexible portion (164), the needle Yuni' preparative fits the push button hole (113) in the retracted state of the holder one It prevents longitudinal movement of the holder (120).

The length lower center of the needle Yuni' Tohoruda one (120), the longer longitudinal direction horizontal pin (106) of the (viewed from the front left side) of the horizontal pin (106) (184) of the movable piece to be described later (152) long hole for guiding (170) is are drilled into.

Needle Yuni' Tohoruda - stepped portion for receiving the rear end of the second half portion is a pair of upper and lower square rod portion (165) main panel to the front end lower surface of the lower angle bar portion consist (1 66) (166) (124) of (120) (167) is provided, a pair of square bar portion (165) trailing the capturing auxiliary spring (122) co spring rear receiving pieces capturing receiving the trailing edge of the (166) (168) is fixed, a pair square bar portion (165) engaging protrusion hooking the rear end of the movable piece pivot spring near the rear end cross portions of (166) (154) (169) is provided.

Shall apply in the main spring (124) is compressed Koirubane pair of upper and lower square rod portion (16 5) (166) to the exterior of, and rear end wall portion (171) and needle Yuni' Tohoruda the cylinder barrel in a normal state (115) is interposed between the step portion of one (120) (167), for biasing the needle Interview two Tsu Tohoruda scratch (120) forward.

Capturing auxiliary spring (122) also filed by the compression coil spring, a pair of upper and lower square rod portion (165) (166) to the exterior of, and needle Yuni' Tohoruda one (120) co panel after receiving piece (168) and a charge case capturing of is interposed between the auxiliary spring before receiving piece catching of (118) (161), for biasing the needle Yuni' Tohoruda scratch (120) backward. Capturing auxiliary spring (122) is always located behind the main spring (124).

Movable piece rotating panel (154) is a tension Koirubane, an intermediate portion is disposed in the main panel (124) in the rear end portion is arranged to co-panel (122) in capturing. Such an arrangement can rather small diameter of the puncture device can no copolyesters Npaku bets of 穿剌 tool.

3 needle Yuni' preparative back-and-forth movement mechanism (102) is operated as follows.

First, before the start puncturing operation shown in FIG. 1 0, fit Yuni' preparative holding portion second half of the new needle Yuni' bets in (162) (119) of the needle Yuni' bets holder (1 20) and (104). Charge case (118) is in the most advanced position relative to the cylindrical body member (115), the locking projection (121) of the needle Yuni' Tohoruda one (120) from Botan'ana (113) of the cylinder barrel (115) out to be located in front of this. The main bar ne (124), the auxiliary spring (122) and a movable piece rotates panel (154) is either the re lease conditions.

As shown in FIG. 1 1, the pull charge case (118) to the rear Shi pair cylinder barrel (115), the auxiliary spring catching along with this (122) is compressed co needle Yuni' Tohoruda one (120) is retracted, the retaining projection (12 1) prevents the advancement of Botan'ana needle Hamama silicon to (113) Yuni' preparative holder (120) of the cylindrical body member (115). The main panel (124) is also compressed. The compression of the main panel (124), the biasing force for advancing the needle Yuni' preparative holder (120) occurs, Ri by the compression of the auxiliary spring (122), the needle Yuni' Tohoruda - biasing force retracting the (120) occurs . Retracting the tea Jike scan (118) to the good earthenware pots, holds the main spring (124) and Tosuke a compressed state the spring (122), i.e. the charge state.

1 2, Chiya one di- state of channelization one Jikesu the (118) re Li - When the scan, the charge case (118) is caused to by connexion forward the urging force of the auxiliary spring (122), the state shown in FIG. 1 0 Back to. In this state waits for a next puncturing operation.

1 3, to disengage the push button the locking projection (121) by pressing (116) the push button hole (113). As a result, the main spring (124) by Rihari Yuni' preparative holder forward biasing force (120) is advanced, the puncture needle (125) of the needle Yuni' bets (119) is wire carrier Tsu needle passage hole of the flops (112) (111) and a distal force bar - (176) the needle passes through the hole (179) protrude a predetermined length from the distal end cover (176) forward of, pierced fingertip skin. In this puncture state, Banesu preparative flange (114) of the cylindrical body member (115) is positioned behind the stepped portion (167) of the needle Interview two Tsu preparative holder (120). As a result, the front end of the main panel (124) hits the Banesu preparative collar (114), re lease length of the main spring (124) is suppressed less than the length of the exhaustive Li one scan state. Main spring (124) is operative to prevent the return to the rear of the needle Yuni' bets by the auxiliary spring (122) (119), this that by the main panel (124) needle Interview two Tsu City of (119) rear return blocking force, the installation of Banesu the collar (114), the main from exhaustive lease state of the spring (124) Banesu preparative collar (114) on the per ivy length minute just suppressed. Therefore, the needle Interview two Tsu preparative (119) is caused to rapidly retreat by rearward biasing force of the auxiliary panel (122) capturing. The main spring (124) is fully Niri lease, to move forward to the al when its front end or One Hanekae those Tatsutari a step portion (167) of the needle Yuni' Tohoruda one (120) Although impact sound or vibration sound is generated, the occurrence of this good Una noise is prevented by the installation of Panesu Settsu path (114).

After the puncture, needle Yuni' preparative holder (120) is retracted by rearward biasing force of Tosuke spring (122), needle (125) of the needle Yuni' bets (119) is housed in a wire carrier-up (112) the , it returns to the state shown in FIG. 1 0.

Next will describe needle Yuni' preparative discharge mechanism (103).

The needle Yuni' preparative discharge mechanism (103), the bottom of the cylinder cover (117), the needle Yuni' preparative push piece having a pair of left and right inner projections a (152) at the rear end inner surface (151), cylinder cover one (117 It is provided slidably back and forth relative). Inward projection (152) is located inside the cylinder barrel (115). Tiltable movable 'piece (153) is rotatably supported on the inwardly projecting portion (152). Movable piece (153) is a L-shape when viewed from the side, it has a horizontal pin (106) (184) projecting on both sides on the rear end lower portion (pins left viewed from the front (106) longer than the right), disposed on the front side of the horizontal pins (106) (184) inward projection of over pair (1 52), rotatably movable piece (153) is inwardly projecting portion (152) It is supported. Tip of the longer horizontal pin (106) is entered into the long hole (170) for guiding this before-rear direction.

Front is hooked movable piece rotating panel in engagement projection provided at the rear upper portion of the movable piece (153) (105) (154), the movable piece (153) and needle Yuni' preparative holder one (120 movable piece pivot spring (154) is interposed) is a tension spring between the rear end of. Movable piece rotating panel (154) is to turn the rear end surface abutting against the direction of the tip pushes the needle bar of the movable piece (153) (123) (Fig. 1 0 state to clockwise) to the movable piece (153) It urges it to. The installation of the movable Katakaido panel (154), possible after discharge of the used needle Yuni' preparative (119), and this quickly return the movable piece (153) to its original position. The rear end portion, because it is provided in a state penetrating the interior of the auxiliary panel (122) as described above, re-re auxiliary panel (122) of the movable piece pivoting panel (154) - the length of the scan state and the effective number of turns of the can and a child to take rather than size, can be less than or equal to 1 0 degrees pitch angle. Spring index D / d is 4-3 0, is favored properly a. 8 to 1 4 (D is Koiru diameter, d is the wire diameter).

Needle Yuni' Doo discharge mechanism (103) is operated as follows.

1 4, pushing the needle Yuni' preparative press piece (151) forward to pile the urging force of the movable piece pivoting panel (15 4). Ri O And the movable piece (153) is advanced by being guided by the long hole (170), its front end presses the rear end surface abuts with the front this needle pushrod (123). As a result, used needle Yuni' preparative (1 19) is discharged from the needle Yuni' preparative holder (120).

Then, the needle Yuni' preparative press piece (151) to re-lease, the movable piece (153) is returned to its original position by the urging force of the movable piece pivot spring (154), the cylindrical body member (115 anti abutting direction by contact of the lower inner surface inclined portion (155) of) (turned from the state of FIG. 1 0 counterclockwise direction), interference between the needle push rod (123) is avoided.

Description is now made piercing device of pain relief mechanism (107).

8, 1 5 and 1 6, wire carrier Tsu the tip small-diameter portion of the flops (112) is formed gentle spiral groove (175) on the outer circumferential surface, a needle having an inner projection (173) on the front side ring of projections adjusting (174) is fitted around the tip small-diameter portion of the caps (112), the inner projection (173) is coordinating the spiral groove (175) in the cam mechanism is configured . That is, by turning the ring (174) against the caps (112), ring (174) is Ru allowed to move back and forth. On the ring (174), the tip having a needle passage hole (179) Cover (176) is placed over the and destination end wall center has a number of leaflets projection (178) on the distal end surface, on the inner surface thereof recesses ring (174) the front end of the engaging projection (177) is fitted. Needle passage hole of the distal end cover (176) (179) is provided so as to overlap the needle passage hole (11 1) of Canon-up (112). Thus, turning the distal end cover one (176), this ring (174) is around with, and moved back and forth end cover (176) also with the back-and-forth movement of the ring (174), needle (125) previous section needle passage hole (111) and a tip cover one (176) the needle passage hole (179) length that protrudes from the distal end cover one via (176) of the wire carrier-up (112) of is adjusted.

According to this pain relief mechanism (107), the distal end cover scratch (176) pressed against the fingertip of the patient, when piercing the tip portion of the puncture needle (125) to the finger, the tip force bar number of (176) leaflet projection (178) is cod even weaker stimulus on the fingertip, pain due to needle (125) is relaxed dispersed this ensures. The present invention exerts a beneficial effect, such as the following.

The first piercing device is arranged to be movable in the axial direction near the tip end of the housing (1), and a plunger (3) before having a puncture needle (42), in after the previous plug changers (3) a housing (1) Plastic after being movably disposed axially in Nja chromatography (5), before plug changers and (3) before pulling rearward the panel (6), a rear plug changers (5) forward because and a panel (7) after the pressing, the puncture needle (42) the wire carrier-up (2) instantaneously and forcibly by projecting then be retracted from, including a puncture needle (42) before Ru can and child to shorten the moving distance of the plastic changers (3). Gatsute, if micro-vibration of the needle or instrument Ku has micro-vibration or shock panel long you

It is possible to solve the problem of transmitted to 7 hours fingertips, can be as much as possible alleviate the pain experienced by the patient with.

Further, Ri FOR A FULL configure a housing (1) before the protrusion (12) and / or wire carrier Tsu before be sampled collar flop (2) (22) with shock absorbers, front plan jar (3) and when the front end face strikes before scan the collar (22) of the cap (2) of the front plug Nja chromatography (3) impact and which the rear end face occurs when that per prior projection (12) of the housing (1) of sound can and child absorb or alleviate the accompanying, can ease also fear due to impact sound.

In the second piercing device, both cylinder barrel body (115) between the needle Yuni' preparative holder (120), the main spring biasing the same holder one in front (124) is interposed, the needle Yuni' DOO between the holder and the charge case (118), the same holder one the auxiliary panel for urging the rear (122) is interposed, to instantaneously and forcefully projecting the puncture needle from Canon-up then it can be quick and retreat. Thus, the fine vibration properly needle and measuring devices can be micro-vibration or shock panel solves the problem of transmitted to the fingertip long time, it is the utmost relaxation child pain experienced by the patient has.

Et al is, Banesu Settsu Pas (114) set vignetting is inwardly protrude into the cylindrical body member (115), Banesu bets Tsu Pas (114), the main spring during advancement of the needle Yuni' Tohoruda one (124) to jar I keep the Li Li Ichisu within a predetermined length, the front end strikes the position of the main panel (124). Remind as in FIG. 1 3, the puncture state, Banesu Settsu Pas (114) of the cylindrical body member (115) is positioned behind the stepped portion (167) of the needle Yuni' Tohoruda one (120). As a result, the front end of the main spring (124) hits the Banesu preparative Tsu Pas (114), re lease length of the main spring (124) is suppressed less than the length of the exhaustive re Ichisu state. Main spring (124) is operative to prevent the return to the rear of the needle Yuni' bets by the auxiliary panel (122) (119), the return towards after the needle Yuni' preparative by main spring (124) (119) blocking force, the installation of Banesu preparative Tsu Pas (114), the main spring (124)

8 of exhaustive re Ichisu state Banesu Settsu Pas (114) to the length of the amount corresponding to hits is suppressed. Therefore, the needle Yuni' preparative (119) is caused to rapidly retreat by rearward biasing force Tosuke spring (12 2). The main panel (124) is fully Niri lease, when or bounced off or One per a step portion (167) of its front end the needle Interview two Tsu Tohoruda one moves forward in the al (120), Although impact sound or vibration sound is generated, the generation of such noise is prevented by the installation of Banesu preparative collar (114).

In a preferred correct form, since the rear portion of the movable piece pivot spring (154) is arranged inside the catching auxiliary panel (12 2), capturing the length and effective number of turns of the re lease state co spring (122) it is possible to take a rather large, it is the child rather small, the pitch angle. In this respect, it is possible to quickly retract the needle protruding from the caps. Further, the diameter of the puncture device can be reduced, compact of puncture device can be Do. When the movable piece pivot spring is disposed in the inner portion of the main panel, Ru obtained without the Is Ranaru compact of the puncture tool o

In other preferred correct form, since numerous leaflets projections were Togatsu forward distal end surface is provided, the front end surface is pressed against the finger tip of the patient, when piercing the tip portion of the puncture needle to the fingertip, the distal end surface the number of cusps projection gives a weak 剌 stimulation fingertips, thereby effectively disperse pain due puncture needle, can also be as much as possible relieve pain connexion patient receives. Industrial Applicability

The present invention is, for example, relates to a puncture device used when taking blood upon blood tests from the body part, such as a fingertip. The present invention, its moving distance is short, micro-vibration of the needle or instrument is also rather be transmitted to the micro-vibration or shock long fingertip panel to strengthen the plug Nja one return force having a puncture needle so there is no puncture device is provided which can be significantly alleviated the pain experienced by the patient has.

9

Claims

The scope of the claims
1. Consists of cylindrical body having a rear end wall (11) and having a front projection (12) on the front portion in the plane, has a rear projection (13) after prior projection (12), a housing (1) having puncture operating part on the side portion (14) and Kosu bets collar (15),
The housing is provided on the tip portion (1) and having a needle passage hole (21) in the central end, and Canon-up (2) to the rear end surface constitutes front be sampled collar (22), the housing (1) near the tip end of the inner, which is movable in the axial direction but before while being prevented advanced by be sampled collar (22) before projection (12) arranged to be prevented retraction Te Niyotsu by an annular before plastic Nja first and (3),
Before being detachably attached to the distal end of the plunger (3), and pre-flop run-di catcher chromatography (3) of the through needle passage hole (21) of the wire carrier-up (2) with the back-and-forth movement wire carrier Tsu and up (2) needle Yuni' bets (4) for projecting and retracting the puncture needle (42) from being disposed movably ability before at after the plunger (3) in the housing (1) in the axial direction, and front plug揷通 can tip in the ring of Nji catcher chromatography (3) has a (51), after the operation of the housing locked puncturing operation portion Kosu preparative Tsu Pas (15) (1) (14) a locking portion which is detached from the scan Settsu Pas (15) to (53), bra after having a housing operation rod de (52) projecting rearwardly through the rear end wall (11) of (1) and down di turbocharger over (5),
Before the plunger one (3) Bra Nja over engaging portions before provided to the ring inner surface of the (32),
Provided on the side of the distal end portion of the rear plug changers (5) (51), and pre-flop run-Ja first engagement portion (32) Plastic Nja over engagement portion after engagement or disengagement and (4) ,
Before the plunger (3) and the housing (1) before panel (6) rather pull rearward the provided and before the plunger over (3) over between a projection (13) after the rear plunger ( 5) and is interposed between the rear end wall (11) of the housing (1), and you and a spring (7) after pressing the rear bra changers (5) forward,
Puncture tool.
2. The housing (1) before the protrusion (12) and / or wire carrier-up (2) prior to be sampled collar (22) is made of a shock absorbing material, the puncture device according to claim 1.
3. Cylindrical body having a push button hole (113) and (115), removably attached to the distal end of the barrel cylinder and the caps (112) having a needle passage hole (111) at the distal end, the cylindrical body is externally mounted on the body, and a body cover (117) having a push button facing the push button hole (116), from a charge case which is provided to freely move back and forth on the rear end portion of the cylindrical body member (118) housing (101) There is constructed,
Within the housing, distal needle Yuni' preparative (119) detachably held on, and the needle Yuni' Tohoruda one (120) for longitudinal slidable retained needle push rods (123) pushes the needle Yuni' bets forwardly moving freely housed longitudinal with respect to the housing,
Needle Yuni' Tohoruda one, provided that each variable locking projection in and out direction (121) prevents the forward movement of the needle Yuni' Tohoruda one Hamama silicon in the push button hole in a retracted state of the holder by an elastic,
Urging the same holder backwards between Jikesu - the same holder during barrel cylinder and the needle Yuni' preparative holder together with the main panel you urged forward (124) is interposed, the needle Yuni' Tohoruda one and Chiya to capturing auxiliary spring (122) is interposed,
The charge case is this together give biasing force for advancing the needle Yuni' Tohoruda foremost main panel by retracting relative cylinder barrel
2 capturing auxiliary panel provides a biasing force for retracting the needle Yuni' Tohoruda one main panel is advanced by a This disengaging the locking projection by operating the push button from the push button hole, the needle Yuni' Tohoruda one by forward biasing force by needle Yuni' bets puncture needle (125) protruding from the needle passage hole,
Assistant panel capturing is, the forward needle Yuni' door holder is retracted by the back with force, met with puncture needle in calibration Tsu in-flops,
Provided Banesu preparative collar (114) is inwardly protrude in the cylindrical body member, Banesu DOO Tsu path is re re Ichisu of the main spring during advancement of the needle Yuni' bets holder to suppress within Tokoro constant length of, a position the front end of the main panel strikes, the puncture tool.
4. Housing, needle Yuni' preparative push piece having an inner projection (152) (151) is provided slidably back and forth,
Movable piece tiltable inwardly projecting portion (153) is rotatably supported, while the rear end portion of the movable piece and the needle Yuni' Tohoruda one, in the direction leading end of the movable piece is in contact with the needle pushrod those movable piece pivoting spring (154) is interposed for biasing and pivoting the movable piece,
The movable piece by the this pushed forward to pile the urging force of the movable piece pivot spring needle Yuni' preparative push piece, the needle push rod and abutting pressing this forward, the have been used needle Yuni' DOO discharged from the needle Yuni' preparative holder, then is returned to its original position by the urging force of the movable piece rotation panel, the rear portion of the movable piece rotating panel is disposed within the auxiliary panel capturing, according to claim 3, wherein puncture tool.
5. Of al, the middle portion of the movable piece rotating panel is passed through the inside of the main spring, the piercing device according to claim 4, wherein.
6. Numerous leaflet projections were Togatsu forward distal end surface (178) is al provided,
Puncture device according to claim 3, wherein.
7. The front end portion of the housings, the tip cover one (176) is provided having a plurality of cusp projections pointed forward tip surface,
Puncture device according to claim 3, wherein.
PCT/JP2003/013678 2002-10-28 2003-10-27 Needle insertion tool WO2004043258A1 (en)

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JP2004551193A JPWO2004043258A1 (en) 2002-10-28 2003-10-27 Puncture tool

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JP2007190394A (en) * 2006-01-20 2007-08-02 Lifescan Inc Incision instrument with damping device
EP1815792A1 (en) * 2004-10-25 2007-08-08 Arkray, Inc. Lancet and lancet device with the same
EP1911395A1 (en) * 2005-07-29 2008-04-16 Arkray, Inc. Needle insertion device
JP2008546468A (en) * 2005-06-22 2008-12-25 “ハーテーエル−ストレファ”スポールカ アクシーナ Patient skin-piercing device
WO2009052710A1 (en) * 2007-10-26 2009-04-30 Chiu-Yueh Huang Safety lancet
WO2010019741A1 (en) * 2008-08-14 2010-02-18 Abbott Diabetes Care Inc. Cocking mechanism for lancing device
JP4799564B2 (en) * 2004-12-21 2011-10-26 オーウェン マンフォード リミテッドOwen Mumford Limited Device prick the skin
KR101781309B1 (en) * 2016-12-06 2017-09-25 주식회사 제이투 Needle module for tatoo

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JP2000245717A (en) * 1999-03-04 2000-09-12 Terumo Corp Puncture tool

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JPH03141929A (en) * 1989-08-25 1991-06-17 Lifescan Inc Lancet extruding mechanism
JPH0884721A (en) * 1994-09-16 1996-04-02 Meitec Corp Blood sampler
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1815792A1 (en) * 2004-10-25 2007-08-08 Arkray, Inc. Lancet and lancet device with the same
US8251919B2 (en) 2004-10-25 2012-08-28 Arkray, Inc. Lancet and lancet device including the same
EP1815792A4 (en) * 2004-10-25 2011-03-23 Arkray Inc Lancet and lancet device with the same
JP4799564B2 (en) * 2004-12-21 2011-10-26 オーウェン マンフォード リミテッドOwen Mumford Limited Device prick the skin
JP2008546468A (en) * 2005-06-22 2008-12-25 “ハーテーエル−ストレファ”スポールカ アクシーナ Patient skin-piercing device
US8454641B2 (en) 2005-07-29 2013-06-04 Arkray, Inc. Lancet device
EP1911395A4 (en) * 2005-07-29 2009-07-29 Arkray Inc Needle insertion device
EP1911395A1 (en) * 2005-07-29 2008-04-16 Arkray, Inc. Needle insertion device
JP2007190394A (en) * 2006-01-20 2007-08-02 Lifescan Inc Incision instrument with damping device
WO2009052710A1 (en) * 2007-10-26 2009-04-30 Chiu-Yueh Huang Safety lancet
WO2010019741A1 (en) * 2008-08-14 2010-02-18 Abbott Diabetes Care Inc. Cocking mechanism for lancing device
KR101781309B1 (en) * 2016-12-06 2017-09-25 주식회사 제이투 Needle module for tatoo

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