Pump for an artificial heart
First Claim
1. A pump for an artificial heart pump, said pump housing having polar regions and an equatorial region, said polar regions comprising central housing means made of substantially rigid material, said equatorial region comprising a peripheral housing member made of flexible material, said central housing means and said peripheral housing member confining a hollow space, said pump housing further comprising inlet and outlet port means operatively secured to said peripheral housing member to extend tangentially relative to said equatorial region, connector means, and means rotatably securing said connector means to said central housing means on at least one side of said pump housing.
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Accused Products
Abstract
A housing of a pump for an artificial heart comprises central, polar regions of rigid material where a rotatable connector for control and/or power supply conduits is located. An equatorial, peripheral region is made of flexible material. Connectors for inlet and outlet conduits are tangentially mounted to the equatorial region. A flat, torus shaped bellows of elastic material is positioned between two oppositely driven, spring loaded pressure plates and encloses the pump volume. An electromechanical displacement transducer provides signals proportional to the stroke of the pump. The pump may be operated by a liquid or gaseous pressure medium and its shape and structure are well adapted for implantation into a living organism, especially the human body.
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Citations
16 Claims
- 1. A pump for an artificial heart pump, said pump housing having polar regions and an equatorial region, said polar regions comprising central housing means made of substantially rigid material, said equatorial region comprising a peripheral housing member made of flexible material, said central housing means and said peripheral housing member confining a hollow space, said pump housing further comprising inlet and outlet port means operatively secured to said peripheral housing member to extend tangentially relative to said equatorial region, connector means, and means rotatably securing said connector means to said central housing means on at least one side of said pump housing.
- 6. A pump for an artificial heart, comprising a pump housing having polar regions and an equatorial region, said polar regions comprising central housing means made of substantially rigid material, said equatorial region comprising a peripheral housing member made of flexible material, said peripheral housing member confining a variable volume hollow space, said housing further comprising inlet and outlet port means operatively secured to said peripheral housing member to extend tangentially relative to said equatorial region, connector means, means rotatably securing said connector means to said central housing means on at least one side of said pump, and power application means operatively communicating with said connector means for varying said variable volume hollow space.
Specification