发明名称 |
TAMPER PROOF SYSTEM FOR DISPOSABLE LIQUID RESERVOIR AND COOPERATING ACCURATE METERING SYSTEM |
摘要 |
A portable liquid reservoir and delivery assembly particularly suited to ambulatory patients in which liquid under pressure from an expansible container is metered through a valve system under electronic control which includes valve means for filling and emptying a dosage chamber for metering the liquid. The reservoir can be filled initially through an elastic septum, which is protected by a tamper proof cap, which prevents re-use of the reservoir, and which ensures that delivery of medicament can only take place if the cap is properly Installed. A sensor for the dosage chamber allows accurate delivery of liquid, regardless of minor variations in assembled location between the reservoir/valve pack and the electronics control unit. A priming key for the system which overrides the inherent safety features to allow initial flow and elimination of air from the system is also described.
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申请公布号 |
CA2031773(A1) |
申请公布日期 |
1992.06.08 |
申请号 |
CA19902031773 |
申请日期 |
1990.12.07 |
申请人 |
SMITH, TIMOTHY J.N.;SALTER, GEOFFREY D.V.;STRONG, DAVID S.;PUGH, SYDNEY M. |
发明人 |
SMITH, TIMOTHY J.N.;SALTER, GEOFFREY D.V.;STRONG, DAVID S.;PUGH, SYDNEY M. |
分类号 |
A61M1/36;A61M5/148;A61M5/168;(IPC1-7):A61M5/14 |
主分类号 |
A61M1/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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