JPH10192400A - Transfusion device - Google Patents

Transfusion device

Info

Publication number
JPH10192400A
JPH10192400A JP9014768A JP1476897A JPH10192400A JP H10192400 A JPH10192400 A JP H10192400A JP 9014768 A JP9014768 A JP 9014768A JP 1476897 A JP1476897 A JP 1476897A JP H10192400 A JPH10192400 A JP H10192400A
Authority
JP
Japan
Prior art keywords
feed screw
electric motor
slider
engaged
direction
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.)
Pending
Application number
JP9014768A
Other languages
Japanese (ja)
Inventor
Seiji Kojima
Daisei Miura
大生 三浦
誠二 小島
Original Assignee
Japan Servo Co Ltd
Jms Co Ltd
日本サーボ株式会社
株式会社ジェイ・エム・エス
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Servo Co Ltd, Jms Co Ltd, 日本サーボ株式会社, 株式会社ジェイ・エム・エス filed Critical Japan Servo Co Ltd
Priority to JP9014768A priority Critical patent/JPH10192400A/en
Priority claimed from EP03101160A external-priority patent/EP1350527A3/en
Publication of JPH10192400A publication Critical patent/JPH10192400A/en
Application status is Pending legal-status Critical

Links

Abstract

PROBLEM TO BE SOLVED: To prevent malfunctions by external noise by providing a mechanical reverse rotation prevention device between an electric motor rotary shaft and a feed screw.
SOLUTION: A small gear 7 is fixed to the rotary shaft of an electric motor 6 and is engaged with a large gear 8 mounted to the feed screw 5 through a unidirectional clutch 9. A parallelly movably provided slider 3 engaged with the feed screw 5 is engaged with the end part of a sucker 2. By the constitution, when the electric motor 6 is driven in a prescribed direction, the unidirectional clutch 9 is operated in a transmission direction, the feed screw 5 is rotated and the slider 3 is operated so as to make the sucker 2 push transfusion in a discharging direction. However, when the driving electric motor 6 is reversely rotated by the cause of some external noise, the unidirectional clutch 9 is slid and rotation is not transmitted to the feed screw 5. Thus, the reverse movement of the sucker 2 by the slider 3 is not present. In such a manner, the malfunction by the external noise is prevented.
COPYRIGHT: (C)1998,JPO

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、輸液装置に係り、 The present invention relates to relates to an infusion device,
特に原動機の回転によりシリンジの吸子を移動させて薬液,血液等を人体に注入する輸液装置の駆動機構に関するものである。 Particularly those moving the 吸子 syringe by rotation of the prime mover chemical relates to a drive mechanism of the infusion device for injecting the blood or the like to the human body.

【0002】 [0002]

【従来の技術】従来より、電動機の回転によりシリンジの吸子を移動させて自動的に輸液を行う装置が知られている。 Conventionally, to move the 吸子 syringe automatically performing infusion with devices are known by the rotation of the motor. この種の輸液装置では、吸子は、該吸子を押し出す方向と反対方向(吸引)には絶対に動いてはならないという厳しい規定があり、従来技術においては駆動用電動機の回転を、該電動機の駆動プログラム及び電気回路的に回転方向が一方のみとなるように処理対応を行っていた。 In this type of infusion device, 吸子, there are strict provisions as to the direction opposite to the direction (suction) extruding the 該吸Ko not absolutely moving, the rotation of the driving motor in the prior art, the electric motor driving program and an electric circuit to the rotating direction of is performing a process corresponding to the only one.

【0003】 [0003]

【発明が解決しようとする課題】最近の電子技術の発展により医療現場において各種発信ノイズ(電磁波)を発する電気機器が多用され、ノイズによる誤動作の問題が多くなってきた。 The electrical equipment is often used to emit a variety of transmission noise (electromagnetic waves) in the medical field due to the development of the invention is a problem to be solved by] modern electronic technology, the problem of malfunction due to noise has become many.

【0004】 [0004]

【課題を解決するための手段】本発明に成る輸液装置は、原動機で駆動される送りネジを有し、該送りネジに係合する直線運動可能なスライダーによりシリンジの吸子を押圧し液体を送出す輸液装置において、前記原動機の出力軸と送りネジの間にシリンジを押圧する方向のみに駆動力を伝達させる手段を内蔵したことを特徴とする。 Infusion apparatus according to the present invention SUMMARY OF THE INVENTION comprises a feed screw driven by the prime mover, the pressed liquid 吸子 syringe by linearly movable slider which engages the said transmission Ri screw in infusion devices out feed, characterized in that a built-in means for transmitting the driving force only in the direction of pressing the syringe between the screw feed and an output shaft of the prime mover.

【0005】 [0005]

【作用】本発明になる輸液装置の構成においては、電動機の回転軸と送りネジの間に機械的な逆転防止装置が設けられているので、たとえ外来ノイズにより電動機が逆転しても送りネジが逆転することは無く誤動作の危険性は無くなる。 In the configuration of the infusion apparatus according to the present invention, since the feed and the rotation shaft of the motor mechanical backstop between the screw is provided, the screw feed even if the motor is reversed due to external noise be reversed is no risk of not malfunction.

【0006】 [0006]

【発明の実施の形態】以下図面によって本発明の実施例を説明する。 The DETAILED DESCRIPTION OF THE INVENTION Hereinafter drawings illustrating the embodiments of the present invention. 図1は本発明に成る輸液装置の一実施例を示す構成図で、図1において、1はシリンジ、2はシリンジの吸子、3は送りネジ5と係合し吸子2を押すスライダー、5は送りネジ、6は駆動用電動機、7は電動機軸に固着された小歯車、8は前記小歯車と噛み合う大歯車、9は一方向クラッチ、10は筐体である。 Figure 1 is a block diagram showing one embodiment of an infusion device comprising the present invention, in FIG. 1, 1 is a syringe, 2 is the syringe 吸子, 3 pushes the feed screw 5 engaged 吸子 second slider, 5 feed screw, 6 for driving the electric motor, 7 is a pinion fixed to the motor shaft, the 8 large gear meshing with the small gear, the one-way clutch 9, and 10 denotes a housing.

【0007】図1に示す本発明に成る輸液装置の構成は、筐体10の所定の場所に前記吸子2を内装したシリンジ1が固着され、一方筐体10の他の所定の場所に、 [0007] configuration of the infusion device comprising the present invention shown in Figure 1, syringe 1 was furnished the 吸子 2 in place of the casing 10 is fixed, whereas the other predetermined location of the housing 10,
前記シリンジの外筒1と平行な送りネジ5と、該送りネジ5を回転駆動する電動機6とを夫々固着し、該電動機6の回転軸に固着された小歯車7と、送りネジ5に一方向クラッチ9を介して装着された大歯車8とをかみ合わせ、該送りネジ5に係合し平行に移動可能に設けられたスライダー3を前記吸子2の端部と係合して設けてある。 An outer cylinder 1 and parallel to the feed screw 5 of the syringe, said transmission Ri screw 5 fixed respectively an electric motor 6 for rotating people and a small gear 7 secured to the rotating shaft of the electric motor 6, the feed screw 5 one there a large gear 8 mounted via a directional clutch 9 engagement by the slider 3 engaged provided parallel to movably to said transmission Ri screw 5 provided engaged with the end portion of the 吸子 2 . 本発明に使用する一方向クラッチは、例えば図2に示すように送りネジ軸5にその中心を固定した筒体18 One-way clutch for use in the present invention, the cylindrical body was fixed its center to the screw shaft 5 sends example as shown in FIG. 2 18
と、この筒体18の外周に形成した複数の三角溝19 And a plurality of triangular grooves 19 formed on the outer periphery of the cylindrical body 18
と、前記筒体18の外周面にその内周面を対接せしめ、 If, the inner circumferential surface brought into abutment with the outer peripheral surface of the cylindrical body 18,
外周を前記大歯車8に固定した外筒20と、この外筒2 An outer cylinder 20 that the outer periphery is fixed to the large gear 8, the outer tube 2
0の内周面と前記三角溝19間に形成される空間内に介挿されるボール21とより成る従来既知のものを使用する。 Using more made conventionally known inner peripheral surface of the 0 and the ball 21 which is inserted in a space formed between the triangular groove 19.

【0008】図1に示した本発明になる輸液装置は、電動機6を所定の方向(例えば時計方向回転)に駆動すると、一方向クラッチ9が伝達方向に作動し電動機6の回転が送りネジ5を回転させてスライダー3を吸子2が輸液を排出する方向に押し出すように動作し、これにより輸液装置として正しく動作する。 [0008] Infusion device according to the present invention shown in FIG. 1, when driving the electric motor 6 in a predetermined direction (e.g., clockwise rotation), the screw 5 feed rotation of the motor 6 the one-way clutch 9 is operated in the transmission direction the rotate the slider 3 吸子 2 operates to push in the direction of discharging the infusion, thereby to work properly as an infusion device. 次に何らかの原因で駆動電動機6が逆方向(例えば反時計方向回転)すると、 Then the drive motor 6 is backward for some reason (e.g., counterclockwise rotation), the
一方向クラッチ9が滑る方向に作用し、電動機6の回転は送りネジ5に伝達されないからスライダー3により吸子2が逆方向(吸引方向)に動作するという誤動作は発生しない。 Acts in a direction in which the one-way clutch 9 slipping, malfunction of the slider 3 because the rotation of the electric motor 6 is not transmitted to the feed screw 5 吸子 2 is operated in the reverse direction (the suction direction) does not occur.

【0009】 [0009]

【発明の効果】本発明に成る輸液装置は、上記のような構成であるから各種の電気ノイズ等により電動機が逆転しても吸子を逆方向に動作せしめる誤動作を完全に防止できる優れた機能を簡単な構成で実現できる効果がある。 Infusion device comprising to the present invention has excellent completely prevented from malfunctioning allowed to operate the 吸子 be motor is reversed in the opposite direction by the various electric noise or the like since it is the above-described configuration functions there is an effect that can be realized by a simple configuration.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明に成る輸液装置の構成を示す側面図である。 Is a side view showing the configuration of the infusion device comprising to the present invention; FIG.

【図2】本発明に成る輸液装置に使用される一方クラッチの断面図である。 2 is a cross-sectional view of one clutch for use in an infusion device comprising the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 シリンジ 2 シリンジの吸子 3 スライダー 5 送りネジ 6 駆動電動機 7 電動機軸に固着した小歯車 8 大歯車 9 一方向クラッチ 10 筐体 18 筒体 19 三角溝 20 外筒 21 ボール 1 Syringe 2 Syringe 吸子 3 slider 5 feed screw 6 driven motor 7 pinion 8 large gear 9 one-way clutch 10 housing 18 the tubular body 19 the triangular groove 20 outer cylinder 21 balls fixed to the motor shaft of the

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 原動機で駆動される送りネジを有し、該送りネジに係合する直線運動可能なスライダーによりシリンジの吸子を押圧し液体を送出す輸液装置において、 [Claim 1 further comprising a feed screw driven by a prime mover, in the infusion device to delivery the pressed liquid 吸子 syringe by linearly movable slider which engages the said transmission Ri screw,
    前記原動機の出力軸と送りネジの間にシリンジを押圧する方向のみに駆動力を伝達させる手段を内蔵したことを特徴とする輸液装置。 Infusion device, characterized in that a built-in means for transmitting the driving force only in the direction of pressing the syringe between the screw feed and an output shaft of the prime mover.
  2. 【請求項2】 上記駆動力を伝達させる手段が一方向クラッチであることを特徴とする請求項1に記載の輸液装置。 2. A liquid transfer apparatus according to claim 1, wherein the means for transmitting the driving force is unidirectional clutch.
JP9014768A 1997-01-10 1997-01-10 Transfusion device Pending JPH10192400A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9014768A JPH10192400A (en) 1997-01-10 1997-01-10 Transfusion device

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
JP9014768A JPH10192400A (en) 1997-01-10 1997-01-10 Transfusion device
EP03101160A EP1350527A3 (en) 1997-01-10 1998-01-09 Liquid infusion apparatus
ES98900206T ES2227795T3 (en) 1997-01-10 1998-01-09 Apparatus for transporting liquids.
EP05103604A EP1563860A3 (en) 1997-01-10 1998-01-09 Liquid infusion apparatus
PCT/JP1998/000064 WO1998030260A1 (en) 1997-01-10 1998-01-09 Liquid transportation apparatus
EP05103606A EP1595562A3 (en) 1997-01-10 1998-01-09 Liquid infusion apparatus
DE1998625955 DE69825955T2 (en) 1997-01-10 1998-01-09 Instrument for promoting a liquid
US09/142,292 US6179569B1 (en) 1997-01-10 1998-01-09 Liquid transportation apparatus
EP19980900206 EP0916353B1 (en) 1997-01-10 1998-01-09 Liquid transportation apparatus
EP05103607A EP1563861A3 (en) 1997-01-10 1998-01-09 Liquid infusion apparatus
US09/672,292 US6575936B1 (en) 1997-01-10 2000-09-27 Liquid infusion apparatus

Publications (1)

Publication Number Publication Date
JPH10192400A true JPH10192400A (en) 1998-07-28

Family

ID=11870253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9014768A Pending JPH10192400A (en) 1997-01-10 1997-01-10 Transfusion device

Country Status (1)

Country Link
JP (1) JPH10192400A (en)

Similar Documents

Publication Publication Date Title
US3559499A (en) Self-contained mechanical actuator
EP1773196B1 (en) Blood collection system for collecting blood for diagnostic purposes
JP2558753Y2 (en) The power transmission mechanism of the rotary electric tool
CN1226157C (en) Lock for steering column of motor vehicle
US7922695B2 (en) Drug delivery pump drive using linear piezoelectric motor
JP3510918B2 (en) Power tool capable of binding to the various mechanisms of action
US5342180A (en) Pump mechanism having a drive motor with an external rotor
KR100795746B1 (en) Automatic injection device
US5595089A (en) Actuator for steering rear wheels
CN1025174C (en) Electrically actuated braking system
JP2528140B2 (en) The clutch device
US5531278A (en) Power drill with drill bit unit capable of providing intermittent axial impact
US7367358B2 (en) Medical fluid delivery system and method relating to the same
KR20010006919A (en) Driving unit of a welding equipment
EP0091689A1 (en) A starter apparatus
US7670315B2 (en) Injectors, injector systems and methods for injecting fluids
ES2077794T3 (en) hemostatic sleeve for use with a catheter.
WO2001078605A3 (en) Magnetic clutch for the drive shaft of a catheter
JP3647911B2 (en) Linear actuator
KR100334630B1 (en) Electric actuator
MXPA05013437A (en) Coupling system for an infusion pump.
FR2564515A1 (en) Device for operating a door lock of a motor vehicle
JPH0586761A (en) Actuator for door lock device
CN1107800C (en) Starting motor
WO2001078822A3 (en) Concentric catheter drive shaft clutch