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Diaphragm based spontaneous inflation inhibitor in a pump for an inflatable prosthesis

  • US 8,276,591 B2
  • Filed: 10/14/2008
  • Issued: 10/02/2012
  • Est. Priority Date: 12/27/2000
  • Status: Expired due to Term
First Claim
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1. A method of preventing inadvertent inflation of an implantable prosthetic comprising the steps of:

  • providing a pump assembly including a housing directly attached to a pump bulb, the housing enclosing a valve assembly;

    biasing the valve assembly such that an outlet is substantially closed;

    using inadvertent pressure increases from an inlet to supplement the biasing of the valve assembly;

    preventing fluid flow through the outlet by selectively varying fluid pressure within a bypass passageway having a first end which is in fluid communication with the inlet and a second end which is in fluid communication with a chamber; and

    sliding a valve sleeve along a rear portion of the valve assembly to occlude a passageway leading through a portion of the valve assembly and to sealingly engage a portion of the housing.

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