JPH0236519Y2 - - Google Patents
Info
- Publication number
- JPH0236519Y2 JPH0236519Y2 JP1985162959U JP16295985U JPH0236519Y2 JP H0236519 Y2 JPH0236519 Y2 JP H0236519Y2 JP 1985162959 U JP1985162959 U JP 1985162959U JP 16295985 U JP16295985 U JP 16295985U JP H0236519 Y2 JPH0236519 Y2 JP H0236519Y2
- Authority
- JP
- Japan
- Prior art keywords
- syringe
- piston member
- piston
- drive mechanism
- moves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- 239000003814 drug Substances 0.000 claims description 10
- 229940079593 drug Drugs 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 210000000496 pancreas Anatomy 0.000 description 5
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 102000004877 Insulin Human genes 0.000 description 2
- 108090001061 Insulin Proteins 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229940125396 insulin Drugs 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、例えば携帯可能な人工膵臓に適用す
ることができる薬剤注入装置に関するものであ
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a drug injection device that can be applied to, for example, a portable artificial pancreas.
シリンジポンプは、通常、シリンジと該シリン
ジ内を移動するピストン部材と該ピストン部材を
移動操作する駆動機構とから構成されていて、シ
リンジの容積とピストン部材の移動ストロークに
より注入量（吐出量）を精度よく設定でき、少量
の液体を定量供給するのに適した構造になつてい
る。
A syringe pump usually consists of a syringe, a piston member that moves within the syringe, and a drive mechanism that moves and operates the piston member, and the injection volume (discharge volume) is controlled by the volume of the syringe and the movement stroke of the piston member. It can be set accurately and has a structure suitable for supplying small amounts of liquid in fixed amounts.
〔考案が解決しようとする問題点）
このため、例えばインシユリンを長時間かけて
少量ずつ注入する携帯型人工膵臓の薬剤注入装置
としてシリンジポンプを利用することが考えられ
るが、この場合には携帯に適するように小型化す
る必要がある。[Problem to be solved by the invention] Therefore, for example, a syringe pump could be used as a drug injection device for a portable artificial pancreas that injects insulin in small amounts over a long period of time. It needs to be miniaturized to fit.
しかし、シリンジポンプでは、シリンジの容積
及びピストン部材の移動ストロークによつて注入
量が決まるため、これらを変えないようにして携
帯に適するように小型化しなければならず、小型
化が困難であつた。 However, with a syringe pump, the injection volume is determined by the volume of the syringe and the movement stroke of the piston member, so it was necessary to make the pump smaller to make it more portable without changing these factors, which made miniaturization difficult. .
本考案の目的は、シリンジの容積やピストン部
材の移動ストロークを変えることなく小型化し得
る薬剤注入装置を提供することである。 An object of the present invention is to provide a drug injection device that can be downsized without changing the volume of the syringe or the movement stroke of the piston member.
本考案者等は、シリンジの容量及びピストン部
材の移動ストロークを変えることなくポンプ全体
を少型化すべく鋭意研究の結果、ピストン部材を
中空状に形成して、該中空部内に駆動機構を収納
することによりシリンジポンプ全体を容易に小径
化できることを見出し、本考案をなすに至つた。
As a result of intensive research, the inventors of the present invention formed the piston member into a hollow shape and housed the drive mechanism within the hollow part, in order to reduce the size of the entire pump without changing the capacity of the syringe or the movement stroke of the piston member. The inventors have discovered that the diameter of the entire syringe pump can be easily reduced by doing this, and have come up with the present invention.
すなわち、本考案は、シリンジと、該シリンジ
内を移動するピストン部材と、該ピストン部材を
移動操作する駆動機構とを具備してなる薬剤注入
装置において、
前記ピストン部材を中空状に形成して、該中空
部内に前記駆動機構を収納し、該駆動機構の駆動
軸にピストン部材と軸線方向に移動可能で周方向
に係合して駆動モータの回転をピストン部材に伝
動するヘツドギヤを設け、かつピストン部材の外
周面に雌ネジ部に螺合する雄ネジ部を設けて、ピ
ストン部材がシリンジ内において回転しつつ軸線
方向に移動するように構成してなることを特徴と
している。 That is, the present invention provides a drug injection device comprising a syringe, a piston member that moves within the syringe, and a drive mechanism that moves and operates the piston member, wherein the piston member is formed in a hollow shape, The drive mechanism is housed in the hollow portion, and the drive shaft of the drive mechanism is provided with a head gear that is movable in the axial direction of the piston member and engages in the circumferential direction to transmit the rotation of the drive motor to the piston member, and The piston member is characterized in that a male screw portion is provided on the outer peripheral surface of the member to be screwed into the female screw portion, and the piston member is configured to move in the axial direction while rotating within the syringe.
駆動機構の設置スペースが省略されて、全体が
小型化される。駆動モータを回転すると、ヘツド
ギヤを介してピストン部材が回転駆動されて、雌
ネジ部材と雄ネジ部との螺合により該ピストン部
材がシリンジ内を回転しつつ軸線方向に移動す
る。
The installation space for the drive mechanism is omitted, and the overall size is reduced. When the drive motor is rotated, the piston member is rotationally driven via the head gear, and the piston member moves in the axial direction while rotating within the syringe due to the screw engagement between the female threaded member and the male threaded portion.
以下本考案の一実施例を図面を参照して説明す
る。
An embodiment of the present invention will be described below with reference to the drawings.
第１図は本考案の注入装置を携帯型人工膵臓に
適用した実施例を示している。図中符号１は携帯
型人工膵臓のケースで、シリンジ５とピストン部
材６と駆動機構４とから構成された薬剤注入装置
２と、該注入装置２の駆動機構７を制御するマイ
クロコンピユータからなる制御部３と、該制御部
３の電源となる電池４が収納されている。 FIG. 1 shows an embodiment in which the injection device of the present invention is applied to a portable artificial pancreas. Reference numeral 1 in the figure indicates a case of a portable artificial pancreas, which includes a drug injection device 2 consisting of a syringe 5, a piston member 6, and a drive mechanism 4, and a control system consisting of a microcomputer that controls the drive mechanism 7 of the injection device 2. unit 3 and a battery 4 that serves as a power source for the control unit 3 are housed.
第２図は薬剤注入装置２を詳細に示している。
同図によると、薬剤注入装置２のピストン部材６
は、シリンジ５内を軸線方向に移動するピストン
部８と、該ピストン部８を移動操作するピストン
ロツド部９とに分離して構成されている。ピスト
ン部８の周面にはシリンジ５との間の気密性を保
持するためのＯリング１０が設けられている。こ
のピストン部８は、第１図に示すようにシリンジ
５の一端開口部５ａに嵌合されており、シリンジ
５と共に使い捨てされる。 FIG. 2 shows the drug injection device 2 in detail.
According to the figure, the piston member 6 of the drug injection device 2
The syringe 5 is composed of a piston part 8 that moves in the axial direction within the syringe 5, and a piston rod part 9 that moves and operates the piston part 8. An O-ring 10 is provided on the circumferential surface of the piston portion 8 to maintain airtightness between the piston portion 8 and the syringe 5. As shown in FIG. 1, this piston portion 8 is fitted into one end opening 5a of the syringe 5, and is disposable together with the syringe 5.
ピストンロツド部９の外周面には二分割可能な
雌ネジ部材１１（図面では二分割した状態を示し
ている）に螺合する雄ネジ部１２が形成されてい
て、駆動機構７により回転駆動されると、雌ネジ
部材１１と雄ネジ部１２との螺合により回転しつ
つ軸線方向に移動する。 A male threaded part 12 is formed on the outer circumferential surface of the piston rod part 9 and is screwed into a female threaded member 11 that can be divided into two (the state in which it is divided into two is shown in the drawing), and is rotationally driven by the drive mechanism 7. The female screw member 11 and the male screw portion 12 are screwed together to rotate and move in the axial direction.
また、ピストンロツド部９の内部は中空状に形
成されていて、該中空部１４内に駆動機構７が収
納されている。すなわち、駆動機構７を中空部１
４内に収納することにより、全体の小型化を図つ
ている。この中空部１４の内周面には、軸線方向
に延びるキー溝１４ａが複数本（図面では４本）
形成されている。 Further, the inside of the piston rod portion 9 is formed in a hollow shape, and the drive mechanism 7 is housed within the hollow portion 14. That is, the drive mechanism 7 is connected to the hollow part 1
By housing it in the 4th block, the overall size can be reduced. The inner peripheral surface of this hollow portion 14 has a plurality of key grooves 14a (four in the drawing) extending in the axial direction.
It is formed.
駆動機構７は、減速機付き駆動モータ１５と該
駆動モータ１５の駆動軸１６に固定したヘツドギ
ヤ１７とから構成されている。このヘツドギヤ１
７の周面には軸線方向に延びるキー溝１７ａが周
方向に適宜間隔をおいて複数本（図面では４本）
形成されていて、該キー溝１７ａに固定したキー
１８が中空部１４のキー溝１４ａに軸線方向に移
動可能に係合して駆動モータ１５の回転をピスト
ンロツド部９に伝達するようになつている。な
お、駆動モータ１５の端部には固定板１５ａが設
けられていて、該固定板１５ａを介してケース１
内に固定される。 The drive mechanism 7 is composed of a drive motor 15 with a reduction gear and a head gear 17 fixed to a drive shaft 16 of the drive motor 15. This head gear 1
On the circumferential surface of 7, there are a plurality of key grooves 17a extending in the axial direction at appropriate intervals in the circumferential direction (four in the drawing).
The key 18 fixed in the key groove 17a is movably engaged in the key groove 14a of the hollow portion 14 in the axial direction, thereby transmitting the rotation of the drive motor 15 to the piston rod portion 9. . Note that a fixing plate 15a is provided at the end of the drive motor 15, and the case 1 is connected via the fixing plate 15a.
fixed inside.
なお、上記雌ネジ部材１１は、コ字状のホルダ
ー１９ａを介してシリンジ５の一端部位置の固定
板１９ｂ，１９ｂ間に配置される。 The female screw member 11 is placed between the fixing plates 19b at one end of the syringe 5 via a U-shaped holder 19a.
また、電池４，４は電池ボツクス２０内にセツ
トされていて、該電池ボツクス２０と制御部３と
の間にスイツチ２１が配置されている。また、ピ
ストンロツド部９の一端部位置には時間等の表示
部２２が配置されている。 Further, the batteries 4, 4 are set in a battery box 20, and a switch 21 is disposed between the battery box 20 and the control section 3. Further, a display section 22 for displaying time, etc. is arranged at one end of the piston rod section 9.
次に上記実施例の作用を説明する。 Next, the operation of the above embodiment will be explained.
制御部３には予め薬液の注入時間、注入量等の
情報が入力されていて、シリンジ５内に所定量の
インシユリン等の薬液を充填して動作させると、
該情報に従つて駆動モータ１５を制御する。 Information such as the injection time and injection amount of the medicinal solution is input into the control unit 3 in advance, and when the syringe 5 is filled with a predetermined amount of medicinal solution such as insulin and operated,
The drive motor 15 is controlled according to the information.
駆動モータ１５が動作すると、ヘツドギヤ１７
を介してピストンロツド部９に回転が伝達され、
該ピストンロツド部９が雌ネジ部材１１及びピス
トンホルダー１３に案内されて第１図に示す状態
から回転しつつシリンジ５の一端開口部５ａから
進入してピストン部８を前進させる。このとき、
ピストンロツド部９からピストン部８に直線運動
と共に回転運動が作用するが、両者の接触部にお
いてスリツプが生じてピストン部８には回転運動
が殆ど伝わらず、ピストン部８は回転することな
くシリンジ５内を前進する。ピストン部８がシリ
ンジ５の他端部側まで移動すると、制御部３から
の停止信号で駆動モータ１５が停止し、薬液の注
入が終了する。 When the drive motor 15 operates, the head gear 17
Rotation is transmitted to the piston rod portion 9 via
The piston rod portion 9 is guided by the female threaded member 11 and the piston holder 13, rotates from the state shown in FIG. At this time,
Although a linear motion and a rotational motion act from the piston rod section 9 to the piston section 8, a slip occurs at the contact point between the two, so that almost no rotational motion is transmitted to the piston section 8, and the piston section 8 moves inside the syringe 5 without rotating. move forward. When the piston part 8 moves to the other end of the syringe 5, the drive motor 15 is stopped by a stop signal from the control part 3, and the injection of the drug solution is completed.
このようにして薬液の注入が終了したら、コ字
状のホルダー１９ａを外して雌ネジ部材１１を二
分割し、雌ネジ部材１１と雄ネジ部材１２との螺
合状態を解除する。これにより、ピストンロツド
部９を手動で後退させて第１図に示す状態に戻す
ことができる。第１図に示す状態に戻したら、コ
字状のホルダー１９ａで再び雌ネジ部材１１を一
体化して雄ネジ部１２と螺合させる。 When the injection of the chemical solution is completed in this way, the U-shaped holder 19a is removed, the female screw member 11 is divided into two parts, and the screwing state between the female screw member 11 and the male screw member 12 is released. This allows the piston rod portion 9 to be manually retracted and returned to the state shown in FIG. After returning to the state shown in FIG. 1, the female screw member 11 is again integrated with the U-shaped holder 19a and screwed together with the male screw portion 12.
シリンジ５とピストン部８（シリンジ５の他端
部側に移動している）はケース１から外して破棄
し、新品のシリンジ５とピストン部８と交換す
る。 The syringe 5 and piston part 8 (moved to the other end of the syringe 5) are removed from the case 1 and discarded, and replaced with a new syringe 5 and piston part 8.
上記実施例において、シリンジ５に予め薬剤を
封入しておくことも容易にできる。また、上記実
施例では、人工膵臓に適用したので、ピストン部
８とピストンロツド部９を分離して構成し、ピス
トン部８はシリンジ５と共に使い捨てにしたが、
減菌、殺菌等を必要としない他の用途に使用する
場合はピストン部８とピストンロツド部９を一体
に構成してもよい。 In the above embodiment, it is also possible to easily fill the syringe 5 with a drug in advance. In addition, in the above embodiment, since it was applied to an artificial pancreas, the piston part 8 and the piston rod part 9 were constructed separately, and the piston part 8 was made disposable together with the syringe 5.
When used for other purposes that do not require sterilization or sterilization, the piston portion 8 and piston rod portion 9 may be constructed integrally.
以上説明したように本考案によれば、ピストン
部材の内部を中空状に形成して、該中空部内に駆
動機構を収納し、該駆動機構の駆動軸にピストン
部材と軸線方向に移動可能で周方向に係合して駆
動モータの回転をピストン部材に伝動するヘツド
ギヤを設け、かつピストン部材の外周面に雌ネジ
部に螺合するネジ部を設けて、ピストン部材がシ
リンジ内において回転しつつ軸線方向に移動する
ように構成してなるので、従来のシリンジポンプ
に比して駆動機構の設置スペースが省略できて、
注入量を確保して携帯可能な小型化が容易に行え
る。
As explained above, according to the present invention, the inside of the piston member is formed into a hollow shape, the drive mechanism is housed in the hollow part, and the drive shaft of the drive mechanism is movable in the axial direction with the piston member. A head gear is provided that engages in the direction to transmit the rotation of the drive motor to the piston member, and a threaded portion is provided on the outer circumferential surface of the piston member that engages with the female thread, so that the piston member rotates within the syringe and rotates along the axis. Since it is configured to move in the direction, the installation space for the drive mechanism can be saved compared to conventional syringe pumps.
The amount of injection can be secured and the device can be easily miniaturized to be portable.
図面は本考案の一実施例を示すもので、第１図
は一部切欠して示した平面図、第２図は一部切欠
して示した分解斜視図である。
５……シリンジ、６……ピストン部材（ピスト
ン部８、ピストンロツド部９）、７……駆動機構、
１１……雌ネジ部材、１２……雄ネジ部材、１５
……駆動モータ、１７……ヘツドギヤ。
The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway plan view, and FIG. 2 is a partially cutaway exploded perspective view. 5... Syringe, 6... Piston member (piston part 8, piston rod part 9), 7... Drive mechanism,
11...Female thread member, 12...Male thread member, 15
...Drive motor, 17...Head gear.
Claims (1)
部材と、該ピストン部材を移動操作する駆動機構
とを具備してなる注入装置において、 前記ピストン部材を中空状に形成して、該中空
部内に前記駆動機構を収納し、該駆動機構の駆動
軸にピストン部材と軸線方向に移動可能で周方向
に係合して駆動モータの回転をピストン部材に伝
動するヘツドギヤを設け、かつピストン部材の外
周面に雌ネジ部材に螺合する雄ネジ部を設けて、
ピストン部材がシリンジ内において回転しつつ軸
線方向に移動するように構成してなることを特徴
とする薬剤注入装置。[Claims for Utility Model Registration] In an injection device comprising a syringe, a piston member that moves within the syringe, and a drive mechanism that moves and operates the piston member, the piston member is formed in a hollow shape. , the drive mechanism is housed in the hollow portion, and the drive shaft of the drive mechanism is provided with a head gear movable in the axial direction and engaged in the circumferential direction with the piston member to transmit rotation of the drive motor to the piston member, and A male screw part is provided on the outer peripheral surface of the piston member to be screwed into the female screw member,
A drug injection device characterized in that the piston member is configured to move in the axial direction while rotating within the syringe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985162959U JPH0236519Y2 (en) | 1985-10-25 | 1985-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985162959U JPH0236519Y2 (en) | 1985-10-25 | 1985-10-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6272647U JPS6272647U (en) | 1987-05-09 |
| JPH0236519Y2 true JPH0236519Y2 (en) | 1990-10-04 |
Family
ID=31090714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985162959U Expired JPH0236519Y2 (en) | 1985-10-25 | 1985-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0236519Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676171A (en) * | 2000-07-22 | 2005-10-05 | 金容年 | Liquid supply apparatus |
| KR100473568B1 (en) * | 2003-01-25 | 2005-03-10 | 이희영 | Closed loop fat transplantation system |
| EP3210636B1 (en) * | 2012-08-29 | 2021-02-17 | UNL Holdings LLC | Variable rate controlled delivery drive mechanisms for drug delivery pumps |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57177762A (en) * | 1981-04-10 | 1982-11-01 | Parker Hannifin Corp | Liquid injecting apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5136546Y2 (en) * | 1973-03-12 | 1976-09-08 |
-
1985
- 1985-10-25 JP JP1985162959U patent/JPH0236519Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57177762A (en) * | 1981-04-10 | 1982-11-01 | Parker Hannifin Corp | Liquid injecting apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6272647U (en) | 1987-05-09 |
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