JP2000116768A - Puncture appliance - Google Patents

Puncture appliance

Info

Publication number
JP2000116768A
JP2000116768A JP10296325A JP29632598A JP2000116768A JP 2000116768 A JP2000116768 A JP 2000116768A JP 10296325 A JP10296325 A JP 10296325A JP 29632598 A JP29632598 A JP 29632598A JP 2000116768 A JP2000116768 A JP 2000116768A
Authority
JP
Japan
Prior art keywords
housing
stopper
plunger
adjusting mechanism
puncture device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10296325A
Other languages
Japanese (ja)
Other versions
JP3902875B2 (en
Inventor
Koichi Sonoda
耕一 園田
Hisao Nishikawa
尚穂 西川
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.)
Terumo Corp
Original Assignee
Terumo Corp
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 to JP10183794A priority Critical patent/JP2000014662A/en
Application filed by Terumo Corp filed Critical Terumo Corp
Priority to JP29632598A priority patent/JP3902875B2/en
Priority to TW088100639A priority patent/TW376309B/en
Priority to KR1019990001761A priority patent/KR100301308B1/en
Priority to SG9900132A priority patent/SG89273A1/en
Priority to EP05020687.9A priority patent/EP1609417B1/en
Priority to EP99400147A priority patent/EP0931507B1/en
Priority to CNB991012674A priority patent/CN1167382C/en
Priority to DE69932191T priority patent/DE69932191T2/en
Priority to US09/236,009 priority patent/US6261245B1/en
Priority to EP05020686.1A priority patent/EP1609416A3/en
Publication of JP2000116768A publication Critical patent/JP2000116768A/en
Application granted granted Critical
Publication of JP3902875B2 publication Critical patent/JP3902875B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—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
    • A61B5/150061—Means for enhancing collection
    • A61B5/150099—Means for enhancing collection by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
    • 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
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150213—Venting means
    • 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
    • A61B5/150221—Valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15103—Piercing procedure
    • A61B5/15107—Piercing being assisted by a triggering mechanism
    • A61B5/15113—Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15101—Details
    • A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
    • A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
    • A61B5/15186—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

Landscapes

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

Abstract

PROBLEM TO BE SOLVED: To provide a puncture appliance which has a mechanism for regulating the puncture depth of a lancet simple in manipulation and collects body fluid, such as blood. SOLUTION: This puncture appliance 1 is capable of controlling the movement of the lancet 14 having a puncture needle 41 and a plunger 3 connected thereto by contacting of a stopper side movement suppression mechanism 51 of a stopper 5 and a regulation mechanism side movement suppression mechanism 101 of a regulation mechanism 10 and is capable of regulating the movement stop position of the lancet 4 and the plunger 3 connected thereto by regulating the position of the regulation mechanism 10 in an axial direction.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、体液の臨床検査等
をする場合の体液を採取方法として、指先等に穿刺針を
刺し必要量の体液を採取するための穿刺器具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a puncture device for collecting a required amount of bodily fluid by inserting a puncture needle into a fingertip or the like as a method for collecting bodily fluid in a clinical examination of bodily fluids.

【０００２】[0002]

【従来の技術】近年の糖尿病患者の増加に伴い日頃の血
糖値の変動を患者自身モニターする自己血糖測定が推奨
されてきている。血糖値測定をするための血液を採取す
る方法は針状や小刀状のランセットが装備された採血用
穿刺器具が使用される。血液の採取は、採血用穿刺器具
のランセットを穿刺される人に皮膚に刺して、切開し、
切開後に切開部から流出する血液を例えば、試験紙ある
いはピペット等に採血することにより行われる。糖尿病
の患者は、乳幼児から、成人、老人、男性、女性、それ
に数多くの人種に分布しており個々により皮膚の厚みが
違うのに対して、採血用穿刺器具は穿刺針の端面をキャ
ップに突き当てることにより穿刺深さを調整しているこ
とから、例えば浅刺し用と深刺し用のキャップを交換す
ることにより穿刺深さを調整している。上述の問題点を
解決するためにＷＯ９７／０４７０７や米国特許第５６
１３９７８では，穿刺具先端部のキャップ要素に任意に
ランセットの穿刺深さを調整することができる機能を提
供している。2. Description of the Related Art With the increase in the number of diabetic patients in recent years, autologous blood glucose measurement for monitoring daily fluctuations in blood glucose level has been recommended. As a method of collecting blood for measuring a blood glucose level, a blood sampling puncture device equipped with a needle-like or knife-like lancet is used. To collect the blood, puncture the lancet of the puncture device for blood collection into the skin of the person to be punctured, make an incision,
After the incision, the blood flowing out of the incision is collected by, for example, a test paper or a pipette. Diabetic patients range from infants to adults, the elderly, men, women, and many other races, and the thickness of the skin varies depending on the individual.On the other hand, blood sampling punctures use the end face of the puncture needle as a cap. Since the puncture depth is adjusted by abutting, the puncture depth is adjusted, for example, by exchanging a cap for shallow stab and a cap for stab. In order to solve the above problems, WO97 / 04707 and US Pat.
No. 13978 provides a function to adjust the puncturing depth of the lancet to the cap element at the tip of the puncturing device.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、このよ
うな従来の穿刺器具においてはキャップ部に穿刺深さの
調整を有することから、穿刺針の取り外しの際など使用
中に誤って穿刺深さの設定を変更してしまう恐れがある
という問題があった。さらに、一旦キャップを取り外し
てから穿刺針をセットしなければならないという取り扱
い時に、動作が増える問題があった。また、穿刺針の端
面をキャップに突き当てることにより穿刺深さを調整し
ていることから、穿刺針がキャップに突き当たった際
に、その衝撃が穿刺時の穿刺針に直に伝わり、穿刺針の
ぶれによる痛みの増加の恐れがあった。However, since such a conventional puncture device has a puncture depth adjustment in the cap portion, the puncture depth is erroneously set during use such as when removing the puncture needle. There is a problem that may be changed. Further, there is a problem that the number of operations increases when handling in which the puncture needle must be set after the cap is once removed. In addition, since the puncture depth is adjusted by abutting the end face of the puncture needle against the cap, when the puncture needle strikes the cap, the impact is transmitted directly to the puncture needle at the time of puncture, and the There was a risk of increased pain due to blurring.

【０００４】[0004]

【発明が解決しようとする課題】本発明は上記の課題を
鑑み、多段階の穿刺の深さを調整する機構を備え、かつ
誤って調整機能が回転し穿刺の深さの設定が変更するの
を防止するための手段を有する穿刺器具を提供すること
にある。また、本発明は、穿刺時に穿刺針に伝わる衝撃
を軽減できる穿刺器具を提供することにある。さらに、
本発明はキャップ部ごと穿刺針の取り外しが行え、穿刺
針の取り外しの際に一旦キャップを取り外すという操作
の煩雑さを低減した穿刺器具を提供することを目的とす
る。SUMMARY OF THE INVENTION In view of the above problems, the present invention has a mechanism for adjusting the depth of puncture in multiple stages, and the adjustment function is rotated by mistake to change the setting of the puncture depth. It is an object of the present invention to provide a puncture device having means for preventing puncturing. Another object of the present invention is to provide a puncture device that can reduce the impact transmitted to the puncture needle at the time of puncture. further,
SUMMARY OF THE INVENTION It is an object of the present invention to provide a puncture device that can remove a puncture needle together with a cap portion, and reduces the complexity of the operation of once removing the cap when removing the puncture needle.

【０００５】[0005]

【課題を解決するための手段】上記目的は以下の本発明
によって解決される。 （１）本発明は、生体の表面を穿刺する器具において、
先端部が開口されているハウジングと、先端方向に延び
る穿刺針が設けられたランセットが取り付けられ、前記
ハウジング内を摺動するプランジャーと、前記プランジ
ャーの後端方向に連結されるストッパーと、前記ストッ
パーと当接する調整機構と、前記プランジャーまたは前
記ストッパーに接続し、前記ランセット、前記プランジ
ャーおよび前記ストッパーを前記ハウジングの先端方向
に移動させる穿刺用バネとからなり、前記ハウジング内
面には係合部が設けられ、前記ランセット、前記プラン
ジャーまたは前記ストッパーの少なくとも一つには、前
記係合部と係合して、前記ランセット、前記プランジャ
ーおよび前記ストッパーを第一の位置で係止する係止部
が設けられており、前記係合部と前記係止部との係合を
解除することにより前記バネによって、前記ランセッ
ト、前記プランジャーおよび前記ストッパーが前記第一
の位置より先端方向に移動した後に、前記ストッパーが
前記調整機構と接触することにより、前記ランセット、
前記プランジャーおよび前記ストッパーの移動を第二の
位置で停止することを特徴とする穿刺器具である。The above object is achieved by the present invention described below. (1) The present invention relates to a device for puncturing the surface of a living body,
A housing having an open distal end, a lancet provided with a puncture needle extending in the distal direction is attached, a plunger sliding in the housing, and a stopper connected to the rear end of the plunger, An adjusting mechanism that contacts the stopper, and a puncturing spring that is connected to the plunger or the stopper and moves the lancet, the plunger, and the stopper toward the distal end of the housing; A mating portion is provided, and at least one of the lancet, the plunger and the stopper is engaged with the engaging portion to lock the lancet, the plunger and the stopper at a first position. A locking portion is provided, and the engagement between the engaging portion and the locking portion is released. By the spring, the lancet, after the plunger and the stopper is moved from the distal direction the first position, by the stopper is in contact with the adjusting mechanism, the lancet,
A puncture device wherein the movement of the plunger and the stopper is stopped at a second position.

【０００６】（２）本発明は、前記調整機構を前記ハウ
ジング内で長手軸を中心とする軸回転させることによ
り、前記第二の位置を調整するものである上記（１）に
記載の穿刺器具である。 （３）本発明は、前記調整機構および前記ハウジングの
一方に設けられた螺旋状の溝と他方に設けられた前記螺
旋状の溝内に沿って移動する突起によって、前記調整機
構を前記ハウジング内で長手軸を中心とする軸回転させ
ることにより、前記第二の位置を調整するものである上
記（１）乃至（２）に記載の穿刺器具である。(2) The puncture device according to the above (1), wherein the second position is adjusted by rotating the adjusting mechanism about the longitudinal axis in the housing. It is. (3) In the present invention, the adjusting mechanism and the housing may be provided in the housing by a spiral groove provided in one of the housing and a projection moving along the spiral groove provided in the other. The puncture device according to the above (1) or (2), wherein the second position is adjusted by rotating the shaft about a longitudinal axis.

【０００７】（４）本発明は、前記ハウジング内には前
記ハウジングに固定され同軸方向に延びる接続部を有
し、前記調整機構は前記接続部を覆うように嵌合するも
のであって、前記調整機構および前記接続部の一方に設
けられた螺旋状の溝と他方に設けられた前記螺旋状の溝
内に沿って移動する突起によって、前記調整機構を前記
ハウジング内で長手軸を中心とする軸回転させることに
より、前記第二の位置を調整するものである上記（１）
乃至（３）に記載の穿刺器具である。 （５）本発明は、前記接続部が筒状体であり、その内部
をストッパーが摺動するものである上記（１）乃至
（４）に記載の穿刺器具である。 （６）本発明は、前記調整機構の筒状部分には長手軸方
向に延びる一または二以上のスリットが設けられている
上記（１）乃至（５）に記載の穿刺器具である。(4) In the present invention, the housing has a connecting portion fixed to the housing and extending coaxially, and the adjusting mechanism is fitted so as to cover the connecting portion. The adjusting mechanism and the helical groove provided on one of the connecting portions and the protrusion moving along the helical groove provided on the other side allow the adjusting mechanism to be centered on the longitudinal axis in the housing. (1) The second position is adjusted by rotating the shaft.
The puncture device according to any one of (1) to (3). (5) The present invention is the puncture device according to any one of (1) to (4), wherein the connecting portion is a tubular body, and a stopper slides inside the tubular portion. (6) The present invention is the puncture device according to any one of (1) to (5), wherein one or two or more slits extending in a longitudinal axis direction are provided in a cylindrical portion of the adjustment mechanism.

【０００８】（７）本発明は、前記調整機構が前記ハウ
ジングの後端部より前記ハウジング内に未挿入部分を残
して挿入され、前記未挿入部分を長手軸を中心とする軸
回転させることにより、前記調整機構は前記ハウジング
内で長手軸を中心とする軸回転をするものであり、さら
に前記ハウジングの後端部には前記未挿入部分を保護す
るカバーが設けられている上記（１）乃至（６）に記載
の穿刺器具である。 （８）本発明は、前記調整機構の少なくとも一部が筒状
であり、前記ストッパーは前記調整機構の筒状内部を摺
動するものであって、前記筒状内部および前記ストッパ
ーの双方またはいずれか一方には前記ストッパーの移動
抑制機構が設けられている上記（１）乃至（７）に記載
の穿刺器具である。(7) The present invention is characterized in that the adjusting mechanism is inserted from the rear end of the housing into the housing while leaving an uninserted portion, and the uninserted portion is rotated about a longitudinal axis. The adjusting mechanism is configured to rotate around a longitudinal axis in the housing, and a cover for protecting the uninserted portion is provided at a rear end of the housing. A puncture device according to (6). (8) In the present invention, at least a part of the adjusting mechanism is cylindrical, and the stopper slides inside the cylindrical part of the adjusting mechanism, and either or both of the cylindrical part and the stopper are provided. The puncture device according to any one of the above (1) to (7), wherein a movement suppressing mechanism of the stopper is provided on one side.

【０００９】（９）本発明は、前記移動抑制機構が前記
筒状内部および前記ストッパーの双方に設けられ互い係
止する突起である上記（１）乃至（８）に記載の穿刺器
具である。 （１０）本発明は、前記調整機構および前記ハウジング
には、前記調整機構を長手軸を中心とする軸回転させる
ことにより、前記第二の位置を調整する際に、予め設定
した前記第二の位置での前記調整機構の固定手段を有す
る上記（１）乃至（９）に記載の穿刺器具である。(9) The present invention is the puncture device according to any one of (1) to (8), wherein the movement suppressing mechanism is a projection provided on both the inside of the cylinder and the stopper and locked together. (10) The present invention provides the adjusting mechanism and the housing, wherein the adjusting mechanism is rotated about a longitudinal axis to adjust the second position. The puncture device according to any one of (1) to (9), further including a fixing unit for fixing the adjustment mechanism at a position.

【００１０】（１１）本発明は、前記固定手段は、前記
調整機構および前記ハウジングの一方に設けられた凸
部、および他方の設けられた凹部による嵌合手段である
上記（１）乃至（１０）に記載の穿刺器具である。 （１２）本発明は、前記ハウジング内には、前記ストッ
パーが前記調整機構と接触した際に前記調整機構が長手
軸と垂直方向に撓みを生じた場合、前記撓みを許容でき
る空間を有する上記（１）乃至（１１）に記載の穿刺器
具である。(11) In the present invention, the fixing means may be a fitting means formed by a convex portion provided on one of the adjusting mechanism and the housing and a concave portion provided on the other. ). (12) In the present invention, the housing has a space in which the bending can be allowed if the adjusting mechanism bends in a direction perpendicular to the longitudinal axis when the stopper comes into contact with the adjusting mechanism. A puncture device according to 1) to (11).

【００１１】（１３）本発明は、前記ハウジング内に長
手軸方向に延びる軸方向溝を有し、前記プランジャーに
は前記軸方向溝内に沿って移動する突起が設けられてい
る上記（１）乃至（１２）に記載の穿刺器具である。 （１４）本発明は、前記ランセットが、前記穿刺針を覆
いかつ前記ハウジングの先端部に接続可能なキャップ内
に長手軸方向に移動可能に収納されており、前記キャッ
プを前記ハウジングの先端部に接続すると前記キャップ
内に収納された状態で前記プランジャーに取り付けられ
る上記（１）乃至（１３）に記載の穿刺器具である。(13) According to the present invention, in the above (1), the housing has an axial groove extending in the longitudinal axis direction, and the plunger is provided with a projection which moves along the axial groove. 20) A puncture device according to any one of (12) to (12). (14) In the present invention, the lancet is movably accommodated in a longitudinal axis direction in a cap that covers the puncture needle and is connectable to a distal end of the housing. The cap is attached to a distal end of the housing. The puncture device according to any one of (1) to (13) above, wherein the puncture device is attached to the plunger while being housed in the cap when connected.

【００１２】[0012]

【発明の実施の形態】本発明の穿刺器具の実施の形態に
一例を図面を参照して詳細に説明する。図１にその断面
を示す穿刺器具１は主に生体の表面から血液等の体液を
微量採取する際に用いるものである。穿刺器具１は、ハ
ウジング２と、ハウジング２内部を摺動するプランジャ
ー３と、プランジャー３の先端部に取り付けられかつ先
端に延びる穿刺針４１を有するランセット４と、プラン
ジャー３の後端方向に連結されるストッパー５と、スト
ッパー５と当接する調整機構１０と、プランジャー３、
ランセット４およびストッパー５を先端方向に移動させ
るための穿刺用バネ６からなり、前記ハウジング２内面
には係合部８が設けられ、プランジャー３には係合部８
と係合してプランジャー３、ランセット４およびストッ
パー５を第一の位置で係止する係止部７が設けられてい
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a puncture device according to the present invention will be described in detail with reference to the drawings. The puncture device 1 whose cross section is shown in FIG. 1 is mainly used for collecting a small amount of body fluid such as blood from the surface of a living body. The puncture device 1 includes a housing 2, a plunger 3 that slides inside the housing 2, a lancet 4 attached to a distal end of the plunger 3 and having a puncture needle 41 extending to the distal end, and a rear end direction of the plunger 3. , An adjusting mechanism 10 that contacts the stopper 5, a plunger 3,
A puncturing spring 6 for moving the lancet 4 and the stopper 5 in the distal direction is provided with an engaging portion 8 on the inner surface of the housing 2, and the plunger 3 is provided with an engaging portion 8.
And a locking portion 7 that locks the plunger 3, lancet 4 and stopper 5 at the first position by engaging with the first position.

【００１３】なお、第一の位置とは生体の表面を穿刺す
る前の状態をいい、具体的には図１に示す状態をいう。The first position refers to a state before puncturing the surface of the living body, specifically, the state shown in FIG.

【００１４】ハウジング２は図１に示すような筒状のも
のであればその形状は特に限定しないが、握り易さを考
慮すると円筒体が好ましく、さらには係合部８の周囲に
は平面を示す図４のようなに平面部２１を有すると後述
する係止部７と係合部８との係合を解除を目視するこな
く平面部２１に指を滑らせるだけで容易に行えるため望
ましい。The shape of the housing 2 is not particularly limited as long as it is a cylindrical one as shown in FIG. 1, but a cylindrical body is preferable in consideration of the ease of gripping. It is desirable to have the flat portion 21 as shown in FIG. 4 because the engagement between the locking portion 7 and the engaging portion 8 described later can be easily performed by simply sliding the finger on the flat portion 21 without visually checking the release. .

【００１５】穿刺用バネ６は一端をプランジャー３に他
端をハウジング２内面に設けられた穿刺用バネ固定台９
とに接続して圧縮されて挿入されているが、本発明にお
いてはこの形態に限定する必要はなく、一端がランセッ
ト４またはストッパー５に接続し、他端が直接ハウジン
グ２の内面に固定されるものであってもよい。また、穿
刺用バネ６は、プランジャー３、ランセット４およびス
トッパー５を第一の位置から第二の位置まで移動させる
ことができるものであればよく、形状は図に示すコイル
状のもの他に板状などのものであってもよく、その材質
も特に限定しない。なお、穿刺用バネ６は第一の位置で
は圧縮された状態にある。The puncture spring 6 has a puncture spring fixing base 9 having one end provided on the plunger 3 and the other end provided on the inner surface of the housing 2.
However, the present invention is not limited to this configuration, and one end is connected to the lancet 4 or the stopper 5 and the other end is directly fixed to the inner surface of the housing 2. It may be something. The puncture spring 6 may be any as long as it can move the plunger 3, the lancet 4, and the stopper 5 from the first position to the second position. It may be plate-shaped or the like, and its material is not particularly limited. The puncture spring 6 is in a compressed state at the first position.

【００１６】なお、第二の位置とは穿刺針４１が生体の
表面を穿刺する位置をいうが、穿刺器具１の先端部から
穿刺針４１が突出した状態に限らず、例えば、穿刺器具
１の先端部を生体の表面に押し当て先端部内に盛り上が
った生体の表面を穿刺できる状態なども含まれる。The second position refers to a position at which the puncture needle 41 punctures the surface of the living body, but is not limited to a state where the puncture needle 41 protrudes from the tip of the puncture device 1. A state in which the distal end portion is pressed against the surface of the living body and the surface of the living body that is raised inside the distal end portion can be punctured is also included.

【００１７】係止部７はプランジャー３に設けられてい
るが、本発明においてはこの形態に限定する必要はな
く、ランセット４またはストッパー５に設けてもよい。
その形状も一端をプランジャー３等に固定するものでは
なく、両端をプランジャー３等に固定するＵ字状、Ｖ字
状等の形状であってもよい。すなわち、係合部８との係
合することでプランジャー３、ランセット４およびスト
ッパー５を第一の位置で係止でき、可動して係合部８と
の係合を解除できるものであればよい。また、後述する
係合部８がハウジング２の内面から外面へ貫通するもの
である場合には、係止部７はその一部が係合部８を介し
てハウジング２の外面へ突出しているものが、係合を解
除する操作を考慮すると望ましい。Although the engaging portion 7 is provided on the plunger 3, the present invention is not limited to this form, and may be provided on the lancet 4 or the stopper 5.
The shape thereof is not limited to one end fixed to the plunger 3 or the like, but may be a U-shaped or V-shaped shape fixing both ends to the plunger 3 or the like. That is, if the plunger 3, the lancet 4 and the stopper 5 can be locked at the first position by engaging with the engaging portion 8, and can be moved to release the engagement with the engaging portion 8. Good. When an engaging portion 8 described later penetrates from the inner surface to the outer surface of the housing 2, the locking portion 7 partially protrudes to the outer surface of the housing 2 via the engaging portion 8. However, it is desirable to consider the operation of releasing the engagement.

【００１８】係合部８は、ハウジング２内面に設けられ
係止部７と係合できるものであれば特に限定しないが、
本実施形態に示すようなハウジング２の内面から外面へ
貫通する孔であることが望ましい。これにより、確実に
係止部７と係合で、かつ係止部７を押し込むことで容易
に係合を解除することができる。The engaging portion 8 is not particularly limited as long as it is provided on the inner surface of the housing 2 and can engage with the engaging portion 7.
It is desirable that the hole penetrates from the inner surface to the outer surface of the housing 2 as shown in the present embodiment. Thus, the engagement with the locking portion 7 can be securely performed, and the engagement can be easily released by pushing the locking portion 7.

【００１９】ストッパー５は、プランジャー３の後端方
向に接続され、ストッパー側移動抑制機構５１が設けら
れている。ストッパー側移動抑制機構５１は、調整機構
側移動抑制機構１０１と係合し、第一の位置から移動し
たプランジャー３、ランセット４およびストッパー５を
第二の位置で停止させる。なお、本実施形態ではストッ
パー側移動抑制機構５１と調整機構側移動抑制機構１０
１とは互いに凸状であるが、特に限定する必要はなく、
一方が凸状、他方が凹状であるものや、互いに軸方向に
内径もしくは外形が徐々に変化しテーパー状に噛み合う
ような構造のものであってもよい。また、ストッパー５
は本実施形態に示すようにプランジャー３と別部材とす
る必要はなく、プランジャー３と一体化されたものであ
ってもよい。The stopper 5 is connected to the rear end of the plunger 3 and is provided with a stopper-side movement suppressing mechanism 51. The stopper-side movement suppression mechanism 51 engages with the adjustment mechanism-side movement suppression mechanism 101, and stops the plunger 3, the lancet 4, and the stopper 5 moved from the first position at the second position. In the present embodiment, the stopper-side movement suppression mechanism 51 and the adjustment mechanism-side movement suppression mechanism 10
And 1 are mutually convex, but need not be particularly limited.
One may have a convex shape and the other may have a concave shape, or may have a structure in which the inner diameter or outer shape gradually changes in the axial direction and meshes in a tapered shape. Stopper 5
Need not be a separate member from the plunger 3 as shown in the present embodiment, and may be integrated with the plunger 3.

【００２０】ストッパー５によって、ランセット４がス
トッパー５から離れているため、プランジャー３、ラン
セット４およびストッパー５が第一の位置から第二の位
置で停止した時のランセットに伝わる衝撃を減衰するこ
とができる。すなわち、従来のようにランセットが直接
動きを抑制されることにより直接ランセットに衝撃が加
わることなく、衝撃により操作者の手から穿刺器具１が
離れたり、穿刺動作が振れてしまったり、体液を採取さ
れる者に苦痛を与えることなどを防ぐことができる。Since the stopper 5 separates the lancet 4 from the stopper 5, the impact transmitted to the lancet when the plunger 3, the lancet 4 and the stopper 5 stop from the first position to the second position is attenuated. Can be. That is, the lancet is directly restrained from moving as in the prior art, so that the impact does not directly apply to the lancet, but the impact causes the puncture device 1 to be separated from the operator's hand, the puncture motion to fluctuate, or the collection of bodily fluid. It can prevent the distressed person from suffering.

【００２１】調整機構１０は、図１に示すようにハウジ
ング２内を軸方向に移動可能であり、かつストッパー５
がその内部を摺動できるものであればよく、具体的には
筒状のものがあげられる。また、調整機構１０には上述
した調整機構側移動抑制機構１０１が設けられている。
さらに、調整機構１０はハウジング２に対する未挿入部
分１０２を有することが望ましく、これによって調整機
構１０を軸回転させる際の動力を伝達することができ
る。The adjusting mechanism 10 is axially movable in the housing 2 as shown in FIG.
Any material may be used as long as it can slide inside it, and specifically, a cylindrical material can be used. The adjustment mechanism 10 is provided with the above-described adjustment mechanism-side movement suppression mechanism 101.
Further, the adjusting mechanism 10 desirably has an uninserted portion 102 with respect to the housing 2, so that power for rotating the adjusting mechanism 10 can be transmitted.

【００２２】未挿入部分１０２は、誤操作により調整機
構１０が設定した位置から移動するのを防ぐため、保護
カバー１１によって覆われていることが望ましい。な
お、保護カバー１１は、未挿入部分１０２の操作時に取
り外し可能なもの、あるいは未挿入部分１０２を摘んで
軸回転させることができる柔軟性を有するものなど、操
作者が意図しない限り未挿入部分１０２を回転させるこ
とができない構造、材質からなるものが望ましい。The uninserted portion 102 is desirably covered with a protective cover 11 to prevent the adjustment mechanism 10 from moving from a position set by an erroneous operation. The protection cover 11 may be detached when the uninserted portion 102 is operated, or may be flexible enough to pinch the uninserted portion 102 and rotate the shaft. It is desirable to use a structure and a material that cannot rotate the.

【００２３】本実施形態において調整機構１０は、正面
を図５およびその平面を図６に示すような構造となって
いる。すなわち、その外周に螺旋状の溝１０４が設けら
れている。この溝１０４は、後述する接続部１２に設け
られた突起１２２が、その内部に沿って相対的に移動す
る。In this embodiment, the adjusting mechanism 10 has a structure as shown in FIG. 5 as a front view and FIG. 6 as a plan view thereof. That is, the spiral groove 104 is provided on the outer periphery. In the groove 104, a protrusion 122 provided on the connection portion 12 described later relatively moves along the inside thereof.

【００２４】また、本実施形態において調整機構１０
は、ハウジング２を含む断面を示す図７、さらにその拡
大された断面を図８に示すように、ハウジング２内面に
設けられた穿刺用バネ固定台９から後端方向へ延び、そ
の内部をストッパー５が摺動できる筒状である接続部１
２に嵌合することによって設けられている。In the present embodiment, the adjusting mechanism 10
FIG. 7 shows a cross section including the housing 2, and further, as shown in FIG. 8, an enlarged cross section extends from the puncture spring fixing base 9 provided on the inner surface of the housing 2 toward the rear end, and has a stopper inside. 5 is a slidable cylindrical connecting portion 1
2 is provided by fitting.

【００２５】接続部１２は、平面を示す図９および左側
を示す図１１に示す突起１２２と、底面を示す図１０に
示す固定用凸部１２３を有する。突起１２２は、調整機
構１０を軸回転させると溝１０４内を相対的に移動し、
調整機構１０を長手軸方向に移動させる。その結果、プ
ランジャー３等の第二の位置を調整することができる。
固定用凸部１２３は調整機構１０の内面に設けられた凹
部１０５と係合ことにより、予め設定したプランジャー
３等の第二の位置での調整機構１０の状態を固定するこ
とができる。なお、固定用凸部１２３は、突起１２２と
必ずしも対角に位置しなくてもよく、また、一個所だけ
ではなく複数個所に設けてもよい。The connecting portion 12 has a projection 122 shown in FIG. 9 showing a plane surface and FIG. 11 showing a left side, and a fixing convex portion 123 shown in FIG. 10 showing a bottom surface. The protrusion 122 relatively moves in the groove 104 when the adjusting mechanism 10 is rotated around the axis,
The adjusting mechanism 10 is moved in the longitudinal axis direction. As a result, the second position of the plunger 3 and the like can be adjusted.
The fixing protrusion 123 engages with the recess 105 provided on the inner surface of the adjustment mechanism 10, thereby fixing the state of the adjustment mechanism 10 at a preset second position such as the plunger 3. In addition, the fixing convex part 123 does not necessarily need to be located diagonally with respect to the protrusion 122, and may be provided not only in one place but in several places.

【００２６】ここで、調整機構１０とストッパー５との
関係について具体的に述べる。ストッパー３等の第一の
位置から第二の位置への移動範囲は、調整機構１０の長
手方向の位置と、ストッパー側移動抑制機構５１のＡ面
（図１に示す）と調整機構側移動抑制機構１０１のＢ面
（図１に示す）との距離Ｘ（図１に示す）により示され
る。図１２に第一の位置から第二の位置への移動範囲が
小さい状態、図１３に第一の位置から第二の位置への移
動範囲が大きい状態を示す。ここで、調整機構１０の長
手方向の位置は、調整機構１０を軸回転させることによ
り、調整機構１０の螺旋状の溝１０４内の接続部１２の
突起１２２の位置により決定される。すなわち、距離Ｘ
は調整機構１０を軸回転させることにより調整され、決
定することができる。Here, the relationship between the adjusting mechanism 10 and the stopper 5 will be specifically described. The range of movement of the stopper 3 and the like from the first position to the second position is determined by the position in the longitudinal direction of the adjustment mechanism 10, the surface A (shown in FIG. 1) of the stopper-side movement suppression mechanism 51, and the adjustment mechanism-side movement suppression. It is indicated by a distance X (shown in FIG. 1) between the mechanism 101 and the surface B (shown in FIG. 1). FIG. 12 shows a state where the moving range from the first position to the second position is small, and FIG. 13 shows a state where the moving range from the first position to the second position is large. Here, the position of the adjustment mechanism 10 in the longitudinal direction is determined by the position of the projection 122 of the connection part 12 in the spiral groove 104 of the adjustment mechanism 10 by rotating the adjustment mechanism 10 about the axis. That is, the distance X
Can be adjusted and determined by rotating the adjusting mechanism 10 about the axis.

【００２７】さらに、調整機構１０の内面に設けられた
凹部１０５と接続部１２に設けられた固定用凸部１２３
との関係について具体的に述べる。例えば、調整機構１
０の螺旋状の溝１０４の長手軸方向の位置の差（第一の
位置から第二の位置への移動範囲が大きい状態と、第一
の位置から第二の位置への移動範囲が小さい状態の差）
を１ｍｍとし、凹部１０５を調整機構１０の内面に等間
隔（穿刺器具１の長手方向中心軸を支点に角度４５度間
隔）に５個設けると、１段階につき距離Ｘを０.２５ｍ
ｍずつ調整することができる。また、調整機構１０の螺
旋状の溝１０４の長手軸方向の位置の差（第一の位置か
ら第二の位置への移動範囲が大きい状態と、第一の位置
から第二の位置への移動範囲が小さい状態の差）を１ｍ
ｍとし、凹部１０５を調整機構１０の内面に穿刺器具１
の長手方向中心軸を支点に角度０度、１８度、５４度、
１０８度、１８０度の位置に設定すると、距離Ｘを０.
１ｍｍ、０.２ｍｍ、０.３ｍｍ、０.４ｍｍと、等間隔
でなく任意の設定値に調整することもできる。Further, the concave portion 105 provided on the inner surface of the adjusting mechanism 10 and the fixing convex portion 123 provided on the connection portion 12.
The relationship with is specifically described. For example, adjustment mechanism 1
The difference between the positions of the 0 spiral grooves 104 in the longitudinal axis direction (a state where the movement range from the first position to the second position is large and a state where the movement range from the first position to the second position is small) Difference)
Is set to 1 mm, and five recesses 105 are provided on the inner surface of the adjusting mechanism 10 at equal intervals (at an angle of 45 degrees around the central axis in the longitudinal direction of the puncture device 1), the distance X is 0.25 m per step.
m can be adjusted. In addition, the difference between the positions of the spiral grooves 104 in the longitudinal direction of the adjusting mechanism 10 (the state where the movement range from the first position to the second position is large, the movement from the first position to the second position). 1m
m, and the recess 105 is inserted into the inner surface of the adjustment mechanism 10 by the puncture device 1.
0 degree, 18 degrees, 54 degrees, with the longitudinal center axis of
When the positions are set at 108 degrees and 180 degrees, the distance X is set to 0.
The distance may be adjusted to an arbitrary set value, such as 1 mm, 0.2 mm, 0.3 mm, and 0.4 mm, not at equal intervals.

【００２８】なお、未挿入部分１０２に目印１０６を設
けておくと、調整機構１０が調整しようとしている設定
値が目視できるため望ましい。It is desirable to provide a mark 106 on the non-inserted portion 102 so that the setting value to be adjusted by the adjusting mechanism 10 can be visually checked.

【００２９】接続部１２は、長手軸方向に延びる一また
は二以上のスリット１２１を有することが望ましい。ス
リット１２１を設けることにより、ストッパー側移動抑
制機構５１と調整機構側移動抑制機構１０１が接触した
時に調整機構１０に生じる内側への撓みを許容すること
ができる。これによりストッパー側移動抑制機構５１と
調整機構側移動抑制機構１０１が接触した時の穿刺器具
１の全体に生じる振動を軽減することが可能となり、振
動により操作者の手から穿刺器具１が離れたり、穿刺動
作が振れてしまったり、体液を採取される者に苦痛を与
えることなどを防ぐことができる。The connecting portion 12 preferably has one or more slits 121 extending in the longitudinal axis direction. By providing the slit 121, it is possible to allow the adjustment mechanism 10 to bend inward when the stopper-side movement suppression mechanism 51 and the adjustment mechanism-side movement suppression mechanism 101 come into contact with each other. This makes it possible to reduce the vibration that occurs in the entire puncture device 1 when the stopper-side movement suppression mechanism 51 and the adjustment mechanism-side movement suppression mechanism 101 come into contact, and the vibration causes the puncture device 1 to be separated from the operator's hand. In addition, it is possible to prevent the puncturing operation from swinging or causing a pain to the person from whom the body fluid is collected.

【００３０】さらに、接続部１２を介して調整機構１０
を接続することにより、図１に示すように調整機構１０
の少なくとも調整機構側移動抑制機構１０１付近から先
端方向への外面と、ハウジング内面との間に空間１３を
設けながら調整機構１０を接続することができる。Further, the adjusting mechanism 10 is connected via the connecting portion 12.
By connecting the adjusting mechanism 10 as shown in FIG.
The adjustment mechanism 10 can be connected while providing a space 13 between at least the adjustment mechanism side movement suppression mechanism 101 and the outer surface in the distal direction from the vicinity of the tip and the inner surface of the housing.

【００３１】空間１３は、ストッパー側移動抑制機構５
１と調整機構側移動抑制機構１０１が接触した時に調整
機構１０に生じる外側への撓みを許容することができ
る。これにより、上述した接続部１２にスリット１２１
を設けた時と同様に、ストッパー側移動抑制機構５１と
調整機構側移動抑制機構１０１が接触した時の穿刺器具
１の全体に生じる振動を軽減することが可能となり、振
動により操作者の手から穿刺器具１が離れてしまった
り、体液を採取される者に与える苦痛を防ぐことができ
る。なお、調整機構１０にはハウジング２の内径とほぼ
同一の外径部１０３を設けておくことによって、空間１
３があっても調整機構１０を安定に軸回転させることが
できる。The space 13 is provided with a stopper-side movement suppressing mechanism 5.
It is possible to allow the adjustment mechanism 10 to flex outward when the adjustment mechanism 1 and the adjustment mechanism-side movement suppression mechanism 101 come into contact with each other. Thereby, the slit 121 is formed in the connection portion 12 described above.
As in the case where the puncture device is provided, it is possible to reduce the vibration generated in the entire puncture device 1 when the stopper-side movement suppression mechanism 51 and the adjustment mechanism-side movement suppression mechanism 101 come into contact with each other. It is possible to prevent the puncture device 1 from being separated, and to prevent the body fluid from being given to the sampled person. By providing the adjusting mechanism 10 with an outer diameter portion 103 substantially the same as the inner diameter of the housing 2, the space 1
Even if there is 3, it is possible to rotate the adjusting mechanism 10 in a stable manner.

【００３２】なお本発明においては、接続部１２は必ず
しも設ける必要はなく、ハウジング２の内面か調整機構
１０の外面のいずれか一方に突起１２２に該当する突
起、他方に螺旋状の溝１０４に該当する螺旋状の溝を設
け、調整機構１０を軸回転させることにより、調整機構
１０の位置を調整するものあってもよい。In the present invention, it is not always necessary to provide the connection portion 12, and the projection corresponds to the projection 122 on one of the inner surface of the housing 2 and the outer surface of the adjustment mechanism 10, and the spiral groove 104 corresponds to the other. Alternatively, the position of the adjusting mechanism 10 may be adjusted by providing a spiral groove and rotating the adjusting mechanism 10 about the axis.

【００３３】ハウジング２の先端部には、キャップ１４
を設けることが望ましい。これによって、プランジャー
３等が第一の位置にあるときは、キャップの外に穿刺針
１１が出ない構造となっており、誤って手や指をつける
ことの無いようにしている。キャップ１４とハウジング
２の取り付け方法は、特に限定されず、簡単に取り外せ
るように嵌合ないしはネジ構造による螺着などがあげら
れる。なお、キャップ１４の生体の表面との接触面には
開口部１４１が形成されており、その直径は穿刺部位を
限定せずに穿刺が行えるように、１ｍｍ以上１０ｍｍ以
下、好ましくは１ｍｍ以上６ｍｍ以下程度に設定すれば
良い。At the tip of the housing 2, a cap 14
Is desirably provided. Thus, when the plunger 3 and the like are in the first position, the puncture needle 11 does not come out of the cap, so that a hand or finger is not accidentally put on. The method of attaching the cap 14 and the housing 2 is not particularly limited, and examples thereof include fitting or screwing with a screw structure for easy removal. An opening 141 is formed in the contact surface of the cap 14 with the surface of the living body, and the diameter thereof is 1 mm or more and 10 mm or less, preferably 1 mm or more and 6 mm or less so that puncturing can be performed without limiting the puncturing site. It should just be set to about.

【００３４】また、キャップは別の形態として、図１４
にその先端部分の断面を示すキャップ１４ｂのような形
態があげられる。すなわち、キャップ１４ｂは、その内
部を摺動可能でかつ一端に穿刺針４１ｂを接続するラン
セット４ｂを収納するものである。このキャップ１４ｂ
によって、キャップ１４ｂをハウジング２ｂに接続する
ことによって、ランセット４の他端をプランジャー３に
接続することができ、後述する本実施形態の使用の説明
と同様に使用をすることができる。As another form of the cap, FIG.
The shape of a cap 14b showing the cross section of the tip portion is shown in FIG. That is, the cap 14b houses the lancet 4b that can slide inside the cap and connects the puncture needle 41b to one end. This cap 14b
Thus, by connecting the cap 14b to the housing 2b, the other end of the lancet 4 can be connected to the plunger 3, and can be used in the same manner as described later in the use of the present embodiment.

【００３５】本実施形態においては、ハウジング２の内
面に軸方向溝２２およびプランジャー３にぶれ防止突起
３１を設けることが望ましい。ぶれ防止突起３１が軸方
向溝２２内に沿って移動することによって、プランジャ
ー３は軸回転方向にぶれることなく安定した状態で軸方
向のみの移動が可能となり、その結果穿刺針４１を正確
な位置に穿刺することができる。In this embodiment, it is desirable to provide the axial groove 22 and the anti-shake projection 31 on the plunger 3 on the inner surface of the housing 2. The movement of the anti-shake protrusion 31 along the axial groove 22 allows the plunger 3 to move in the axial direction only in a stable state without shaking in the axial rotation direction. You can puncture the location.

【００３６】上述した各構成部品の材質に関しては、特
に限定されず、硬質プラスチック、金属等を適選使用で
きる。ただし、プランジャー３の少なくともハウジング
２内面との摺動面、またはハウジング２の少なくともプ
ランジャー３との摺動面は、摺動面の気密性を維持でき
る熱可塑性エラストマーやゴムなどの材質からなること
が望ましい。気密性を維持することにより、ハウジング
２の先端部を生体の表面に押し当て穿刺針４１で生体の
表面を穿刺した後、プランジャー３が第二の位置から第
一の位置方向へ戻る際に、ハウジング２内の生体の表面
で封止された先端部とプランジャー３とが形成する空間
が減圧状態となり、その結果生体の表面を吸引し、採取
する体液を効果的に吸引することができる。また、予め
吸引手段を設け、ハウジング２内の生体の表面で封止さ
れた先端部とプランジャー３とが形成する空間を減圧状
態とし、その結果ハウジング２内方向に盛り上がった生
体の表面を穿刺針４１で穿刺し、採取する体液を効果的
に吸引することもできる。The material of each component described above is not particularly limited, and a hard plastic, metal, or the like can be appropriately selected and used. However, at least the sliding surface of the plunger 3 with the inner surface of the housing 2 or at least the sliding surface of the housing 2 with the plunger 3 is made of a material such as a thermoplastic elastomer or rubber capable of maintaining the airtightness of the sliding surface. It is desirable. By maintaining the airtightness, the plunger 3 returns from the second position to the first position after the tip of the housing 2 is pressed against the surface of the living body and the puncture needle 41 punctures the surface of the living body. The space formed by the plunger 3 and the distal end portion sealed by the surface of the living body in the housing 2 is in a reduced pressure state. As a result, the surface of the living body can be sucked, and the bodily fluid to be collected can be effectively sucked. . In addition, a suction means is provided in advance, and the space formed by the plunger 3 and the distal end portion sealed with the surface of the living body in the housing 2 is decompressed, and as a result, the surface of the living body rising in the housing 2 is punctured. The body fluid to be punctured with the needle 41 and collected can also be effectively sucked.

【００３７】なお、生体の表面を穿刺した後吸引するた
めには、プランジャー３が第二の位置に移動する際に、
ハウジング２内の生体の表面で封止された先端部とプラ
ンジャー３とが形成する空間が陽圧となり、穿刺できな
くなる可能性がある。そのため、陽圧となったハウジン
グ２内の空気をハウジング２外へ逃すが、減圧となった
ハウジング２内に外気を流入させないため、ダックビル
弁などの一方方向弁を、ハウジング２、プランジャー３
およびキャップ１４のいずれか一つに設けておくことが
望ましい。In order to perform suction after puncturing the surface of the living body, when the plunger 3 moves to the second position,
There is a possibility that the space defined by the plunger 3 and the distal end portion sealed by the surface of the living body in the housing 2 becomes positive pressure, making it impossible to puncture. For this reason, the air in the housing 2 that has become a positive pressure is released to the outside of the housing 2.
It is desirable to provide it on any one of the cap 14 and the cap 14.

【００３８】次に本実施形態の使用の説明をする。ま
ず、操作者はまず保護カバー１１を取り外し、調整機構
１０を回転させ、測定に必要最低限の血液などの体液が
採取できるプランジャー３、ランセット４およびストッ
パー５の第二の位置、すなわち穿刺針４１の移動距離を
自ら設定をする。これにより、穿刺時に伴う痛みを必要
最低限に押さえることが可能となる。調整機構１０は一
度設定すれば頻繁に設定し直す必要がないため、保護カ
バー１１で覆うことにより誤操作によって穿刺深さが変
更され必要以上に穿刺針が深く刺さることや採血ミス等
をなくことができる。Next, the use of this embodiment will be described. First, the operator removes the protective cover 11 and rotates the adjusting mechanism 10 so that the plunger 3, the lancet 4, and the stopper 5 can collect the minimum amount of body fluid such as blood necessary for measurement, that is, the puncture needle. The travel distance of 41 is set by itself. This makes it possible to minimize the pain associated with puncturing to a minimum. Once set, the adjustment mechanism 10 does not need to be reset frequently, so covering with the protective cover 11 prevents the puncture depth from being changed due to erroneous operation, and prevents the puncture needle from being inserted deeper than necessary and blood sampling mistakes and the like. it can.

【００３９】次に、プランジャー３の先端部に穿刺針４
１を有するランセット４を装着し、穿刺用バネ６の弾性
力に抗してランセット４が装着されたプランジャー３を
後端方向へ押し込み、係止部７を係合部８の縁部に係止
させる。この時、穿刺用バネ６は圧縮状態で保持され
る。この状態で、生体の表面への穿刺の準備が完了する
（図１参照）。Next, a puncture needle 4 is attached to the tip of the plunger 3.
1, the plunger 3 on which the lancet 4 is mounted is pushed toward the rear end against the elastic force of the puncturing spring 6, and the engaging portion 7 is engaged with the edge of the engaging portion 8. To stop. At this time, the puncturing spring 6 is held in a compressed state. In this state, preparation for puncturing the surface of the living body is completed (see FIG. 1).

【００４０】そして、キャップ１４の先端の開口部１４
１を、例えば指先のような生体の表面に密着するように
押しつけ、係合部８より突出した係止部７を押す。する
と、係止部７と係合部８との係合が外され，収縮してい
た穿刺用バネ６がその弾性力により伸長し、プランジャ
ー３が先端方向へ移動し、穿刺針４１がキャップ１４の
開口部１４１より突出し、生体の表面１５を穿刺する
（図２参照）。このとき、ストッパー５がプランジャー
３と一緒にハウジング２内を摺動し、ストッパー５のス
トッパー側移動抑制機構５１が調整機構１０の調整機構
側移動抑制機構１０１と接触することによりプランジャ
ー３の先端方向への移動が規制され、同時にランセット
４の穿刺針４１による生体の表面の穿刺の深さが、設定
された深さに調整される。穿刺針４１が生体の表面を穿
刺した後は、穿刺用バネ８は減衰運動を経て自然長に戻
り、生体の表面から穿刺針が抜け、ハウジング２内に格
納される（図３参照）。The opening 14 at the tip of the cap 14
1 is pressed so as to be in close contact with the surface of a living body such as a fingertip, and the locking portion 7 protruding from the engaging portion 8 is pressed. Then, the engagement between the engaging portion 7 and the engaging portion 8 is released, the contracted puncturing spring 6 is extended by its elastic force, the plunger 3 moves toward the distal end, and the puncture needle 41 is moved to the cap. It protrudes from the opening 141 of 14 and punctures the surface 15 of the living body (see FIG. 2). At this time, the stopper 5 slides inside the housing 2 together with the plunger 3, and the stopper-side movement suppression mechanism 51 of the stopper 5 comes into contact with the adjustment mechanism-side movement suppression mechanism 101 of the adjustment mechanism 10, so that the plunger 3 is moved. The movement in the distal direction is restricted, and at the same time, the depth of the puncture by the puncture needle 41 of the lancet 4 on the surface of the living body is adjusted to the set depth. After the puncture needle 41 punctures the surface of the living body, the puncture spring 8 returns to its natural length through a damping movement, the puncture needle comes off the surface of the living body, and is stored in the housing 2 (see FIG. 3).

【００４１】このように、穿刺器具１は、ランセット４
が穿刺以外はキャップ１４の先端部の開口部１４１から
突出しないようになっており、誤って皮膚などを傷つけ
ることが無く、感染なども防止することができ、安全性
が高いものとなる。ストッパー５と調整機構１０によっ
て、所定の穿刺位置への穿刺を再現性良く行うことがで
きる。As described above, the puncture device 1 includes the lancet 4
However, except for puncturing, it does not protrude from the opening 141 at the tip of the cap 14, so that it does not injure the skin or the like accidentally, can prevent infection and the like, and has high safety. The stopper 5 and the adjusting mechanism 10 can perform puncturing at a predetermined puncturing position with good reproducibility.

【００４２】[0042]

【発明の効果】本発明の穿刺器具は、ランセットの穿刺
深さを調整する機構を備えているため、測定に必要最低
限の血液量が取れる穿刺深さを操作者が自ら設定をする
ことができ、穿刺時に伴う痛みを必要最低限に押さえる
ことが可能となる。The puncture device of the present invention is provided with a mechanism for adjusting the puncture depth of the lancet, so that the operator can set the puncture depth at which a minimum amount of blood required for measurement can be obtained. The pain associated with puncturing can be minimized.

【図面の簡単な説明】[Brief description of the drawings]

【図１】図１は、本発明の穿刺器具の一例の断面図であ
る。FIG. 1 is a cross-sectional view of an example of a puncture device according to the present invention.

【図２】図２は、穿刺器具が生体の表面を穿刺した状態
の断面図である。FIG. 2 is a cross-sectional view showing a state where a puncture device punctures the surface of a living body.

【図３】図３は、穿刺器具が生体の表面を穿刺した後の
断面図である。FIG. 3 is a cross-sectional view after the puncture device punctures the surface of a living body.

【図４】図４は、穿刺器具のハウジングの平面図であ
る。FIG. 4 is a plan view of a housing of the puncture device.

【図５】図５は、穿刺器具の調整機構の正面図である。FIG. 5 is a front view of an adjusting mechanism of the puncture device.

【図６】図６は、穿刺器具の調整機構の平面図である。FIG. 6 is a plan view of an adjustment mechanism of the puncture device.

【図７】図７は、穿刺器具のハウジングの断面図であ
る。FIG. 7 is a cross-sectional view of the housing of the puncture device.

【図８】図８は、穿刺器具のハウジングに設けられた接
続部（図７の円内）の断面図である。FIG. 8 is a sectional view of a connection portion (in a circle in FIG. 7) provided on a housing of the puncture device.

【図９】図９は、穿刺器具の接続部の平面図である。FIG. 9 is a plan view of a connection portion of the puncture device.

【図１０】図１０は、穿刺器具の接続部の底面図であ
る。FIG. 10 is a bottom view of a connection portion of the puncture device.

【図１１】図１１は、穿刺器具の接続部の左側面図であ
る。FIG. 11 is a left side view of a connection portion of the puncture device.

【図１２】図１２は、穿刺器具のプランジャーの第一の
位置から第二の位置への移動範囲が小さい状態の断面図
である。FIG. 12 is a cross-sectional view of a state where the range of movement of the plunger of the puncture device from the first position to the second position is small.

【図１３】図１３は、穿刺器具のプランジャーの第一の
位置から第二の位置への移動範囲が大きい状態の断面図
である。FIG. 13 is a cross-sectional view showing a state where the range of movement of the plunger of the puncture device from the first position to the second position is large.

【図１４】図１４は、キャップを別の形態とした先端部
分の断面図である。FIG. 14 is a cross-sectional view of a tip portion in another form of the cap.

【符号の説明】[Explanation of symbols]

１ 穿刺器具 ２ ハウジング ２１ 平面部 ２２ 軸方向溝 ３ プランジャー ３１ ぶれ防止突起 ４ ランセット ４１ 穿刺針 ５ ストッパー ５１ ストッパー側移動抑制機構 ６ 穿刺用バネ ７ 係止部 ８ 係合部 ９ 穿刺用バネ固定台 １０ 調整機構 １０１ 調整機構側移動抑制機構 １０２ 未挿入部分 １０３ ハウジング２の内径とほぼ同一の外径部 １０４ 溝 １０５ 凹部 １１ 保護カバー １２ 接続部 １２１ スリット １２２ 突起 １２３ 固定用凸部 １３ 撓みを許容する空間 １４ キャップ １４１ 開口部 １５ 生体の表面 DESCRIPTION OF SYMBOLS 1 Puncture device 2 Housing 21 Flat part 22 Axial groove 3 Plunger 31 Blur prevention projection 4 Lancet 41 Puncture needle 5 Stopper 51 Stopper side movement control mechanism 6 Puncture spring 7 Locking part 8 Engagement part 9 Puncture spring fixing stand DESCRIPTION OF SYMBOLS 10 Adjustment mechanism 101 Adjustment mechanism side movement suppression mechanism 102 Uninserted part 103 Outer diameter part almost the same as the inner diameter of housing 2 104 Groove 105 Depression 11 Protective cover 12 Connection part 121 Slit 122 Projection 123 Fixing convex part 13 Allows bending Space 14 Cap 141 Opening 15 Surface of living body

Claims (8)

【特許請求の範囲】[Claims] 【請求項１】生体の表面を穿刺する器具において、 先端部が開口されているハウジングと、 先端方向に延びる穿刺針が設けられたランセットが取り
付けられ、前記ハウジング内を摺動するプランジャー
と、 前記プランジャーの後端方向に連結されるストッパー
と、前記ストッパーと当接する調整機構と、 前記プランジャーまたは前記ストッパーに接続し、前記
ランセット、前記プランジャーおよび前記ストッパーを
前記ハウジングの先端方向に移動させる穿刺用バネとか
らなり、 前記ハウジング内面には係合部が設けられ、 前記ランセット、前記プランジャーまたは前記ストッパ
ーの少なくとも一つには、前記係合部と係合して、前記
ランセット、前記プランジャーおよび前記ストッパーを
第一の位置で係止する係止部が設けられており、 前記係合部と前記係止部との係合を解除することにより
前記バネによって、前記ランセット、前記プランジャー
および前記ストッパーが前記第一の位置より先端方向に
移動した後に、前記ストッパーが前記調整機構と接触す
ることにより、前記ランセット、前記プランジャーおよ
び前記ストッパーの移動を第二の位置で停止することを
特徴とする穿刺器具。1. A device for puncturing the surface of a living body, comprising: a housing having an open distal end; a lancet provided with a puncture needle extending in the distal direction; and a plunger sliding in the housing. A stopper connected to a rear end direction of the plunger, an adjusting mechanism abutting on the stopper, connected to the plunger or the stopper, and moving the lancet, the plunger, and the stopper toward a front end of the housing. An engaging portion is provided on the inner surface of the housing, and at least one of the lancet, the plunger, and the stopper is engaged with the engaging portion, and the lancet, A locking portion for locking the plunger and the stopper at the first position is provided; After the lancet, the plunger, and the stopper are moved in the distal direction from the first position by the spring by releasing the engagement between the engagement portion and the locking portion, the stopper is adjusted. A puncture device wherein the movement of the lancet, the plunger and the stopper is stopped at a second position by contact with a mechanism. 【請求項２】前記調整機構を前記ハウジング内で長手軸
を中心とする軸回転させることにより、前記第二の位置
を調整するものである請求項１に記載の穿刺器具。2. The puncture device according to claim 1, wherein the second position is adjusted by rotating the adjusting mechanism about a longitudinal axis in the housing. 【請求項３】前記ハウジング内には前記ハウジングに固
定され同軸方向に延びる接続部を有し、前記調整機構は
前記接続部を覆うように嵌合するものであって、前記調
整機構および前記接続部の一方に設けられた螺旋状の溝
と他方に設けられた前記螺旋状の溝内に沿って移動する
突起によって、前記調整機構を前記ハウジング内で長手
軸を中心とする軸回転させることにより、前記第二の位
置を調整するものである請求項１乃至２に記載の穿刺器
具。3. The housing has a connecting portion fixed to the housing and extending in the coaxial direction, wherein the adjusting mechanism is fitted so as to cover the connecting portion. By means of a helical groove provided on one of the parts and a projection moving along the helical groove provided on the other, the adjusting mechanism is axially rotated about a longitudinal axis in the housing. 3. The puncture device according to claim 1, wherein the puncture device adjusts the second position. 【請求項４】前記調整機構が前記ハウジングの後端部よ
り前記ハウジング内に未挿入部分を残して挿入され、前
記未挿入部分を長手軸を中心とする軸回転させることに
より、前記調整機構は前記ハウジング内で長手軸を中心
とする軸回転をするものであり、さらに前記ハウジング
の後端部には前記未挿入部分を保護するカバーが設けら
れている請求項１乃至３に記載の穿刺器具である。4. The adjusting mechanism is inserted from the rear end of the housing into the housing except for an uninserted portion, and the uninserted portion is rotated about a longitudinal axis. The puncture device according to any one of claims 1 to 3, wherein the puncture device is configured to rotate around a longitudinal axis in the housing, and further provided with a cover at a rear end of the housing to protect the uninserted portion. It is. 【請求項５】前記調整機構の少なくとも一部が筒状であ
り、前記ストッパーは前記調整機構の筒状内部を摺動す
るものであって、前記筒状内部および前記ストッパーの
双方またはいずれか一方には前記ストッパーの移動抑制
機構が設けられている請求項１乃至４に記載の穿刺器
具。5. The adjusting mechanism is at least partially cylindrical, and the stopper slides inside the cylindrical part of the adjusting mechanism, and / or one of the cylindrical part and the stopper is provided. The puncture device according to any one of claims 1 to 4, further comprising a mechanism for suppressing movement of the stopper. 【請求項６】前記調整機構の筒状部分には長手軸方向に
延びる一または二以上のスリットが設けられている請求
項１乃至５に記載の穿刺器具。6. The puncture device according to claim 1, wherein one or more slits extending in a longitudinal axis direction are provided in a cylindrical portion of the adjusting mechanism. 【請求項７】前記調整機構および前記ハウジングには、
前記調整機構を長手軸を中心とする軸回転させることに
より前記第二の位置を調整する際に、予め設定した前記
第二の位置での前記調整機構の固定手段を少なくとも一
つ以上有する請求項１乃至６に記載の穿刺器具。7. The adjusting mechanism and the housing,
When adjusting the second position by rotating the adjusting mechanism about a longitudinal axis, the adjusting mechanism has at least one or more means for fixing the adjusting mechanism at the preset second position. 7. The puncture device according to any one of 1 to 6. 【請求項８】前記ランセットが、前記穿刺針を覆いかつ
前記ハウジングの先端部に接続可能なキャップ内に長手
軸方向に移動可能に収納されており、前記キャップを前
記ハウジングの先端部に接続すると前記キャップ内に収
納された状態で前記プランジャーに取り付けられる請求
項１乃至７に記載の穿刺器具。8. The lancet is movably accommodated in a longitudinal axis direction in a cap that covers the puncture needle and is connectable to a distal end of the housing. The lancet is connected to the distal end of the housing. The puncture device according to claim 1, wherein the puncture device is attached to the plunger while being stored in the cap.
JP29632598A 1998-01-22 1998-10-19 Puncture device Expired - Lifetime JP3902875B2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
JP10183794A JP2000014662A (en) 1998-01-22 1998-06-30 Humor examination device
JP29632598A JP3902875B2 (en) 1998-10-19 1998-10-19 Puncture device
TW088100639A TW376309B (en) 1998-01-22 1999-01-16 Body-fluid inspection device
SG9900132A SG89273A1 (en) 1998-01-22 1999-01-21 Body-fluid inspection device
KR1019990001761A KR100301308B1 (en) 1998-01-22 1999-01-21 Body-fluid inspection device
EP99400147A EP0931507B1 (en) 1998-01-22 1999-01-22 Body-fluid inspection device
EP05020687.9A EP1609417B1 (en) 1998-01-22 1999-01-22 Lancing device with depth adjustment
CNB991012674A CN1167382C (en) 1998-01-22 1999-01-22 Body-fluid inspection device
DE69932191T DE69932191T2 (en) 1998-01-22 1999-01-22 Device for the examination of body fluid
US09/236,009 US6261245B1 (en) 1998-01-22 1999-01-22 Body-fluid inspection device
EP05020686.1A EP1609416A3 (en) 1998-01-22 1999-01-22 Body-fluid inspection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29632598A JP3902875B2 (en) 1998-10-19 1998-10-19 Puncture device

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP2005224790A Division JP4145313B2 (en) 2005-08-03 2005-08-03 Puncture device
JP2006127950A Division JP2006255432A (en) 2006-05-01 2006-05-01 Puncture device

Publications (2)

Publication Number Publication Date
JP2000116768A true JP2000116768A (en) 2000-04-25
JP3902875B2 JP3902875B2 (en) 2007-04-11

Family

ID=17832085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29632598A Expired - Lifetime JP3902875B2 (en) 1998-01-22 1998-10-19 Puncture device

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US8556829B2 (en) 2002-04-19 2013-10-15 Sanofi-Aventis Deutschland Gmbh Method and apparatus for penetrating tissue
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US9375169B2 (en) 2009-01-30 2016-06-28 Sanofi-Aventis Deutschland Gmbh Cam drive for managing disposable penetrating member actions with a single motor and motor and control system
US9386944B2 (en) 2008-04-11 2016-07-12 Sanofi-Aventis Deutschland Gmbh Method and apparatus for analyte detecting device
US9427532B2 (en) 2001-06-12 2016-08-30 Sanofi-Aventis Deutschland Gmbh Tissue penetration device
US9538941B2 (en) 2001-06-08 2017-01-10 Roche Diabetes Care, Inc. Devices and methods for expression of bodily fluids from an incision
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US9775553B2 (en) 2004-06-03 2017-10-03 Sanofi-Aventis Deutschland Gmbh Method and apparatus for a fluid sampling device
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