Abstract: A retractable centesis needle comprises a hollow, sharp tipped outer cannula extending from a housing. The outer cannula is generally tube-like and open at both ends to form a channel into a cavity in the housing. A blunt tipped inner cannula is disposed within the channel and capable of sliding away from the housing to an extended state and toward the housing to a refracted state. The inner cannula is biased toward the extended state by a first spring disposed in the housing. A second spring also disposed in the housing acts in the same direction as the first spring when the inner cannula is in a fully retracted state. However, the second spring does not bias the inner cannula in any direction when the inner cannula is in a fully extended state.

Abstract: A retractable centesis needle comprises a hollow, sharp tipped outer cannula extending from a housing. The outer cannula is generally tube-like and open at both ends to form a channel into a cavity in the housing. A blunt tipped inner cannula is disposed within the channel and capable of sliding away from the housing to an extended state and toward the housing to a refracted state. The inner cannula is biased toward the extended state by a first spring disposed in the housing. A second spring also disposed in the housing acts in the same direction as the first spring when the inner cannula is in a fully retracted state. However, the second spring does not bias the inner cannula in any direction when the inner cannula is in a fully extended state.

Abstract: An apparatus for the automated and facilitated handling and operation of a biopsy needle system, having a first needle component and a second needle component. The first and second needles are provided with first and second handles, respectively, which are fitted into first and second yokes of the apparatus. The apparatus is configured to maintain the first and second needles in a first position, during insertion of the biopsy needle point into the tissue being sampled. The apparatus is further configured to forwardly move the first and second needles into subsequent positions, respectively, in rapid, automated succession so as to segment and enclose a tissue sample, which may be tested after removal of the biopsy needle system from the tissue.

Abstract: An integrated biopsy needle assembly for use with a conventional biopsy gun comprises a hollow cannula, a stylet, a cannula hub operatively fixed to the proximal end of the cannula, a stylet hub operatively fixed to the proximal end of the stylet, and a hub strap operably associated therewith. The cannula hub is operatively fixed to the hub strap, while the stylet hub is capable of movement relative to the hub strap. The hub strap includes a top member, at least one side wall and at least one bottom member, thereby forming an inner channel. The cannula and stylet hubs further include a base and a cap, with the cannula and stylet hub caps being maintained at all times within the inner channel of the hub strap.

Abstract: An integrated biopsy needle assembly for use with a conventional biopsy gun comprises a hollow cannula, a stylet, a cannula hub operatively fixed to the proximal end of the cannula, a stylet hub operatively fixed to the proximal end of the stylet, and a hub strap operably associated therewith. The cannula hub is operatively fixed to the hub strap, while the stylet hub is capable of movement relative to the hub strap. The hub strap includes a top member, at least one side wall and at least one bottom member, thereby forming an inner channel. The cannula and stylet hubs further include a base and a cap, with the cannula and stylet hub caps being maintained at all times within the inner channel of the hub strap.

Abstract: Needle tip protectors or guards, for preventing re-use of hypodermic or other needles, and/or accidental needle stick during the disposal thereof, are provided. The needle tip guard is mounted on the shaft of a needle, prior to use of the needle. The needle tip protectors or guards are provided with structures for binding or frictionally engaging against a needle shaft, after a needle has been used and the needle tip guard has been slid along the length of the used needle, until the tip of the needle is withdrawn into the interior of the needle tip guard. The needle tip protectors or guards are also provided with structures to prevent re-emergence of the needle tips out of the fronts of the guards, once the tips of the needles have been withdrawn into the guards.

Abstract: An apparatus for the automated and facilitated handling and operation of a biopsy needle system, having a first needle component and a second needle component. The first and second needles are provided with first and second handles, respectively, which are fitted into first and second yokes of the apparatus. The apparatus is configured to maintain the first and second needles in a first position, during insertion of the biopsy needle point into the tissue being sampled. The apparatus is further configured to forwardly move the first and second needles into subsequent positions, respectively, in rapid, automated succession so as to segment and enclose a tissue sample, which may be tested after removal of the biopsy needle system from the tissue.

Abstract: An apparatus for the automated and facilitated handling and operation of a biopsy needle system, having a first needle component and a second needle component. The first and second needles are provided with first and second handles, respectively, which are fitted into first and second yokes of the apparatus. The apparatus is configured to maintain the first and second needles in a first position, during insertion of the biopsy needle point into the tissue being sampled. The apparatus is further configured to forwardly move the first and second needles into subsequent positions, respectively, in rapid, automated succession so as to segment and enclose a tissue sample, which may be tested after removal of the biopsy needle system from the tissue.

Abstract: An apparatus for the automated and facilitated handling and operation of a biopsy needle system, having a first inner needle component and a second outer needle component. The first inner and second outer needles are provided with first and second handles, respectively, which are fitted into first and second yokes of the apparatus. The apparatus is configured to maintain the first inner and second outer needles in a first position, during insertion of the biopsy needle point into the tissue being sampled. The apparatus is further configured to move the first inner and second outer needles into second and third positions, respectively, in rapid, automated succession so as to segment and enclose a tissue sample, which may be tested after removal of the biopsy needle system from the tissue.