CONTINUOUS MULTI-FLUID PUMP DEVICE, DRIVE AND ACTUATING SYSTEM, AND METHOD
PROBLEM TO BE SOLVED: To provide a new selector valve.SOLUTION: Provided is a selector valve for a medical fluid delivery device, comprising: a valve bore in fluid communication with an outlet channel; a first outlet port; a second outlet port; and a selector valve body comprising a valve stem locat...
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Sprache: | eng ; jpn |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a new selector valve.SOLUTION: Provided is a selector valve for a medical fluid delivery device, comprising: a valve bore in fluid communication with an outlet channel; a first outlet port; a second outlet port; and a selector valve body comprising a valve stem located within the valve bore and having a flow passage. The selector valve body is adapted to place the flow passage in fluid communication with one of the first outlet port, the second outlet port, and a shut-off position. The flow passage comprises a sealing arrangement selected from the group consisting of a lip seal arrangement, an elastomeric core disposed within a thin-walled valve stem, a plurality of O-ring seals, a segmented valve stem having a plurality of finger elements disposed between radial ridges of a cooperating sleeve, a valve stem having a lower portion of a compliant material and an upper portion of a stiff material, an inner liner of a compliant sealing material seated within the valve bore between an outer valve cylinder wall and the valve stem, and combinations thereof.SELECTED DRAWING: Figure 2
【課題】新規な切換弁を提供する。【解決手段】医療用流体送達デバイス用切換弁であって、出口チャネルと流体連通する弁孔と、第1の出口ポートと、第2の出口ポートと、弁孔内に配置されると共に流路を有する弁軸を備える切換弁本体を具備し、切換弁本体は流路を、第1の出口ポート、第2の出口ポートおよび遮断位置のうちの一つと流体連通状態とするよう構成されており、流路は、リップシール機構、薄壁弁軸内に配置されたエラストマコア、複数のOリングシール、協働するスリーブの放射状隆起間に配置された複数の指要素を有するセグメント化された弁軸、柔軟な材料の下側部分および硬い材料の上側部分を有する弁軸、外側弁円柱形壁と弁軸との間の弁孔内に着座させられた柔軟な封止材料の内側ライナおよびその組み合わせからなる群から選ばれた封止機構を備える切換弁。【選択図】図2 |
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