JP5760039B2 - 薬剤投与装置 - Google Patents
薬剤投与装置 Download PDFInfo
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- JP5760039B2 JP5760039B2 JP2013115983A JP2013115983A JP5760039B2 JP 5760039 B2 JP5760039 B2 JP 5760039B2 JP 2013115983 A JP2013115983 A JP 2013115983A JP 2013115983 A JP2013115983 A JP 2013115983A JP 5760039 B2 JP5760039 B2 JP 5760039B2
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Description
図1は、本発明の実施の形態1に係る薬剤投与装置の全体斜視図である。
図10は、本発明の実施の形態2に係る製剤を自動溶解させる薬剤投与装置の内部断面図である。図6と同一構成部分には同一符号を付して重複箇所の説明については、ここでは省略する。
実施の形態3は、針取付け検知機能をなくし、製剤投与時に押下される薬剤投与ボタン9が押された時のタイマ21の運針ついて、詳細に説明する。
2 筐体
3 先端キャップ
4 確認窓
5 シリンジカバー
5b 検出用突起
6 電源ボタン
7 エア抜きボタン
8 完了ボタン
9 薬剤投与ボタン
10 LCD
11,44 製剤シリンジ
11a シールゴム
11b シリンジ端面
11c 製剤
12 ピストンケース
13 シリンジ検出スイッチ
14 シリンジカバー検出部
14a シリンジカバー検出レバー
14b シリンジカバー検出レバースプリング
14c シリンジカバー検出スイッチ
15 ピストン
16 ピストン駆動用モータ
17 注射針
18 注射針検出レバー機構
18a 注射針検出レバー
18b 検出用突起
18c 注射針検出レバースプリング
18d バネ固定栓
19 注射針検出スイッチ
20 カレンダ
21 タイマ
21A 内蔵タイマ
22 電源部
23 マイクロプロセッサ
23A 記憶部
24 モータドライブ回路
25 電流検知回路
26 エンコーダ
27 表示部
28 サウンダ
29 バイブレータ
30 通信部
44a 粉末製剤
44b シリンジ凸部
44c 薬液
44d ゴムA
44e ゴムB
Claims (10)
- 製剤が入った製剤シリンジが装着され、生体に対して前記製剤を投与する薬剤投与装置であって、
前記製剤シリンジ内の製剤を溶解する製剤溶解手段と、
前記製剤溶解手段により前記製剤が溶解された時を、前記製剤の使用開始時として検出する製剤溶解検出手段と、
前記製剤の使用開始時を記憶する記憶部と、
前記製剤が使用開始されてからの経過時間をカウントする使用時間カウント手段と、
カウントされた前記経過時間情報を報知する報知手段と、を備え、
前記製剤溶解手段は、ピストン駆動用モータとピストンを有し、
前記製剤溶解検出手段は、前記ピストン駆動用モータがピストンを一定量前進させることにより、前記製剤シリンジ内の製剤が溶解され、その製剤が溶解された時を、前記製剤の使用開始時として検出する、
薬剤投与装置。 - 前記ピストンを一定量前進させる距離は、前記ピストン用駆動モータと接続されたエンコーダから発生させられるパルス数をカウントすることで求められ、
前記製剤溶解検出手段は、そのエンコーダの所定のパルス数をカウントすることにより、前記製剤シリンジ内の製剤が溶解された時を判断し、その製剤が溶解された時を前記製剤の使用開始時として検出する、
請求項1に記載の薬剤投与装置。 - 前記使用時間カウント手段は、前記製剤溶解検出手段により検出した前記製剤の使用開始時に、タイマーをスタートさせることで、有効使用期間を管理する、
請求項1または請求項2に記載の薬剤投与装置。 - 製剤投与のための前記製剤シリンジの取付けを検出するシリンジ検出手段をさらに有し、
前記記憶部は、前記シリンジ検出手段が製剤シリンジの取り付けを検出した後に、前記製剤溶解検出手段が検出した前記製剤の使用開始時を記憶する、
請求項1から3のいずれか一つに記載の薬剤投与装置。 - 予め定められた前記製剤の使用期限を記憶する記憶手段と、
前記製剤の使用期限と、前記使用時間カウント手段によりカウントされた前記経過時間とに基づいて前記製剤の使用期限までの残り時間を算出する残り時間算出手段と、を備え、
前記報知手段は、前記残り時間算出手段により算出された前記製剤の使用期限までの残り時間を報知する、
請求項1から4のいずれか一つに記載の薬剤投与装置。 - 前記報知手段は、前記使用時間カウント手段によりカウントされた経過時間、又は前記製剤の使用期限までの残り時間を、音又は音声で報知する、
請求項5記載の薬剤投与装置。 - 前記報知手段は、前記使用時間カウント手段によりカウントされた経過時間が所定の値を超えた場合、又は前記製剤の使用期限までの残り時間が所定の値以下の場合に、アラームで報知する、
請求項5記載の薬剤投与装置。 - 前記製剤溶解手段は、前記製剤シリンジを前記薬剤投与装置本体に装着した場合に、前記薬剤投与装置本体側において前記製剤シリンジが装着されたことを検知して、前記ピストン駆動用モータでピストンを押し出し、製剤を自動溶解する、
請求項1記載の薬剤投与装置。 - 前記製剤溶解手段は、前記薬剤投与装置本体の操作ボタンを押すことで、前記ピストン駆動用モータでピストンを押し出し、製剤を半自動溶解する、
請求項1から3のいずれか一つに記載の薬剤投与装置。 - 前記シリンジ検出手段は、前記製剤シリンジを前記薬剤投与装置へ装着した時に、前記製剤シリンジの一端に接触することによりスイッチ機能を有するシリンジ検出スイッチを備える、
請求項4記載の薬剤投与装置。
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