JP6262030B2 - 液体投与具 - Google Patents
液体投与具 Download PDFInfo
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- JP6262030B2 JP6262030B2 JP2014047697A JP2014047697A JP6262030B2 JP 6262030 B2 JP6262030 B2 JP 6262030B2 JP 2014047697 A JP2014047697 A JP 2014047697A JP 2014047697 A JP2014047697 A JP 2014047697A JP 6262030 B2 JP6262030 B2 JP 6262030B2
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Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
F1>F0 ・・・式(3)
F1≦F0+F3 ・・・式(4)
F1≦F0 ・・・式(5)
F1≦F0+F3 ・・・式(6)
F1>F0 ・・・式(7)
F1>F0+F3 ・・・式(8)
11 第1コイルバネ(付勢部材)、
20 操作部、
30 カバー部材、
36 安全用凸部(第1の係合部)、
37 誘導用凸部(凸部)、
40 構造体、
58 傾斜面、
60 シリンジ(収容体)、
66 針管、
90,140 押し子、
95 移動量規制部、
98 摺動面、
99 収容部、
105 抵抗用爪部(回転用接触部)、
107 当接部、
109 回転用接触部、
112 カム溝、
112A 初期直線溝(第1の溝)、
112B 傾斜溝(第2の溝)、
112C 直線溝(第3の溝)、
112D,112F,112G 中断用保持部、
115 安全用段差部(第2の係合部)、
112E,130 中断用縁部、
142 誘導用傾斜面(傾斜面)、
E 露出規制部、
M 動作誘導部。
Claims (4)
- 液体を生体内へ投与するための液体投与具であって、
把持して操作を行うための操作部と、
内部に液体を収容可能な収容体および前記収容体の内部と連通可能な針管を備え、前記操作部に対して相対的に回転可能かつ当該回転の軸方向へ移動可能である構造体と、
前記針管を覆う保護位置および前記針管を露出させる露出位置の間を移動可能なカバー部材と、
前記カバー部材を先端方向に付勢する付勢部材と、
前記付勢部材の付勢力により前記露出位置から前記保護位置に移動する前記カバー部材の前記構造体に対する移動量が所定の露出規制作動量に達した際に、前記カバー部材の前記露出位置への移動を規制する露出規制部と、
前記操作部の前記構造体に対する先端方向への移動量が所定の投与完了移動量に達するまで、前記付勢部材の付勢力により、前記カバー部材の前記構造体に対する移動量が露出規制作動量に達しないように前記カバー部材の移動量を規制する移動量規制部と、を有し、
前記露出規制部は、前記構造体およびカバー部材の一方に形成される第1の係合部と、他方に形成されて前記第1の係合部と係合可能な第2の係合部と、を備え、
前記構造体およびカバー部材は、相対的に回転することで、前記第1の係合部および第2の係合部の回転方向の位置が一致しない第1の状態から、第2の状態を経由して前記第1の係合部および第2の係合部の回転方向の位置が一致する第3の状態へ移行させる動作誘導部を備え、
前記移動量規制部は、前記操作部および構造体の一方に設けられる当接部と、他方に設けられて前記軸方向へ延在し、前記当接部が前記軸方向へ摺動可能に接触する摺動面と、を備え、
前記第1の状態において、前記当接部は前記摺動面から離間して位置し、
前記第2の状態において、前記摺動面に前記当接部が接触することで前記操作部および構造体の相対的な回転を規制して前記第3の状態への移行を規制しつつ、前記摺動面に沿って前記当接部が摺動可能であり、
前記摺動面を摺動した前記当接部が、前記摺動面に対して前記当接部の移動方向側に形成されて前記当接部を受け入れ可能な収容部に収容されることで、前記操作部および構造体が相対的に回転し、前記カバー部材が前記構造体に対して先端方向へ前記露出規制作動量を移動可能な前記第3の状態となり、
前記動作誘導部は、前記構造体およびカバー部材の一方にカム溝、他方に前記カム溝に収容されてカム溝に沿って移動する凸部を有し、
前記カム溝は、
前記第1の状態において前記構造体およびカバー部材を相対的に軸方向へ移動させるための第1の溝部と、
前記第1の溝部と連通し、前記第1の状態から前記第3の状態へ移行させるように前記構造体およびカバー部材を相対的に回転させるための前記軸方向と傾斜した第2の溝部と、
前記第2の溝部と連通し、前記第3の状態において前記構造体およびカバー部材を相対的に軸方向へ移動させて前記第1の係合部および第2の係合部を係合させるための第3の溝部と、を有し、
前記第2の状態において、前記凸部が前記第2の溝に位置する液体投与具。 - 前記第2の溝に、前記第2の状態において前記凸部が前記軸方向へ露出規制作動量未満で移動可能とする中断用保持部が形成される請求項1に記載の液体投与具。
- 前記中断用保持部の縁部に、前記軸方向と直交し、または前記軸方向に対して前記第2の溝が傾斜する方向と反対方向へ傾斜し、前記第2の状態において前記凸部が接して保持される中断用縁部が形成される請求項2に記載の液体投与具。
- 前記操作部および構造体のいずれか一方に傾斜面が形成され、他方に前記傾斜面と接触可能な接触部が形成され、
前記構造体が前記操作部に対して相対的に基端方向へ移動し、前記接触部が前記傾斜面に接触して当該傾斜面に沿って移動することで、前記第2の状態から前記第3の状態へ移行可能な請求項1〜3のいずれか1項に記載の液体投与具。
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CN201510091766.XA CN104906663B (zh) | 2014-03-11 | 2015-02-28 | 液体投放器具 |
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