Medical valve and method of use
DCFirst Claim
1. A medical valve comprising:
- a body including wall structure defining an internal cavity having a proximal end and a distal end, said proximal end having an opening sufficiently large to receive a delivery end of a medical implement which transfers fluid through said delivery end;
a spike having a tip, at least one hole located at or near said tip, and a passageway in communication with the hole that allows fluid to flow through said hole, said spike being seated within the cavity such that said tip is enclosed within the cavity; and
a resilient seal which is adapted to be moved distally in the cavity into a compressed state upon insertion of the delivery end of the medical implement into said opening, said seal moving proximally in the cavity and returning to a decompressed state upon removal of said delivery end from said opening, said seal in the decompressed state having a section which fills essentially completely a portion of the cavity adjacent said opening, said seal section bearing against said wall structure near said opening to seal said opening, and in the compressed state said seal section being located in the cavity distal of said opening, said seal comprising a series of O-ring elements stacked together and connected to form a unitary structure.
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Accused Products
Abstract
A closed system, needleless valve device includes a generally tubular body defining an internal cavity. On the proximal end of the body there is an opening which is preferably sufficiently large to receive an ANSI standard tip of a medical implement. The distal end of the body has a generally tubular skirt. The valve also includes a hollow spike having a closed tip. The spike includes at least one longitudinal 18-gauge hole located distal the tip, and is seated inside the cavity such that the tip is below the proximal end of the body. An annular support cuff is connected to the spike which seals off a portion of the cavity of the body such that an upper cavity containing the tip is defined. The valve also includes a plastic, resilient silicone seal which fills the upper cavity and opening and covers the tip of the spike so as to present a flush surface. An adaptor enables the valve to be attached to a resealable container.
559 Citations
17 Claims
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1. A medical valve comprising:
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a body including wall structure defining an internal cavity having a proximal end and a distal end, said proximal end having an opening sufficiently large to receive a delivery end of a medical implement which transfers fluid through said delivery end; a spike having a tip, at least one hole located at or near said tip, and a passageway in communication with the hole that allows fluid to flow through said hole, said spike being seated within the cavity such that said tip is enclosed within the cavity; and a resilient seal which is adapted to be moved distally in the cavity into a compressed state upon insertion of the delivery end of the medical implement into said opening, said seal moving proximally in the cavity and returning to a decompressed state upon removal of said delivery end from said opening, said seal in the decompressed state having a section which fills essentially completely a portion of the cavity adjacent said opening, said seal section bearing against said wall structure near said opening to seal said opening, and in the compressed state said seal section being located in the cavity distal of said opening, said seal comprising a series of O-ring elements stacked together and connected to form a unitary structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A medical valve comprising:
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a body including wall structure defining an internal cavity having a proximal end and a distal end, said proximal end having an opening sufficiently large to receive a delivery end of a medical implement which transfers fluid through said delivery end, said body having a plurality of radial indentations in an interior wall thereof; a spike having a tip, at least one hole located at or near said tip, and a passageway in communication with the hole that allows fluid to flow through said hole, said spike being seated within the cavity such that said tip is enclosed within the cavity; and a resilient seal which is adapted to be moved distally in the cavity into a compressed state upon insertion of the delivery end of the medical implement into said opening, said seal moving proximally in the cavity and returning to a decompressed state upon removal of said delivery end from said opening, said seal in the decompressed state having a section which fills essentially completely a portion of the cavity adjacent said opening, said seal section bearing against said wall structure near said opening to seal said opening, and in the compressed state said seal section being located in the cavity distal of said opening. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification