发明名称 |
DEVICE FOR DISPENSING DROPS OF SMALL VOLUME, IN PARTICULAR FOR OPHTHALMOLOGICAL CARE |
摘要 |
A device for dispensing of small volume comprises a pump associated with a container of the substance to be dispensed, the pump comprising: a hollow pump body; and a piston sliding inside said pump body in sealing contact with the pump body around a circular periphery of diameter D2; wherein the pump further includes: a push rod including a central channel in which a valve seat is formed, the push rod sliding in contact with the pump body around a circular periphery of diameter D1 less than D2; a punch secured to the piston and capable of bearing in sealed manner against the valve seat; and resilient means urging the piston against the valve seat.
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申请公布号 |
US5207659(A) |
申请公布日期 |
1993.05.04 |
申请号 |
US19920861579 |
申请日期 |
1992.04.01 |
申请人 |
SOCIETE TECHNIQUE DE PULVERISATION - S.T.E.P. |
发明人 |
PENNANEAC'H, HERVE;THEOT, MICHEL;JOUILLAT, CLAUDE |
分类号 |
A61J1/05;A61F9/00;B05B11/00 |
主分类号 |
A61J1/05 |
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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