Abstract: An insemination device including a sperm reservoir including sperm therein, a pump in fluid communication with the sperm reservoir and operative to pump sperm therefrom, and a filter in fluid communication with the pump adapted to filter the sperm to form a sperm filtrate that has a higher fertility potential than the sperm before being filtered by the filter, wherein the filter includes a multi-layer membrane for sperm filtration, including at least one first layer with a shape and pore size for preliminary filtration of relatively large particles and at least one second layer with a shape and pore size for filtration of relatively smaller particles.

Abstract: An insemination device including a sperm reservoir including sperm therein, a pump in fluid communication with the sperm reservoir and operative to pump sperm therefrom, and a filter in fluid communication with the pump adapted to filter the sperm to form a sperm filtrate that has a higher fertility potential than the sperm before being filtered by the filter, wherein the filter includes a multi-layer membrane for sperm filtration, including at least one first layer with a shape and pore size for preliminary filtration of relatively large particles and at least one second layer with a shape and pore size for filtration of relatively smaller particles.

Abstract: A slow-release insemination device is disclosed, which enables in-vivo, real time sperm improvement. The present invention may minimize loss of sperm by slow-release of fluid. The sperm may be injected directly into the uterus of a female, avoiding the cervical hostile environment. The female may be free to ambulate within, for example, 2-6 hours of injection, minimizing discomfort.

Abstract: The invention in the simplest form is a passive method and apparatus for filtering motile sperm from a sperm sample. The invention passively filters the motile sperm using a membrane assembly disposed in a container. In operation, a sperm sample is placed on one side of the membrane assembly, and the motile sperm migrate through the membrane where they can be easily extracted.

Abstract: The invention in the simplest form is a passive method and apparatus for filtering motile sperm from a sperm sample. The invention passively filters the motile sperm using a nucleopore membrane that is contained within a membrane assembly, wherein the membrane assembly is disposed in a container. In operation, a medium is placed in the container so the membrane contacts the medium. A sperm sample is placed one side of the membrane assembly, and the motile sperm migrate through the membrane leaving the non-motile sperm behind, where they can be easily extracted.