Medical substance transfer system
First Claim
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1. A medical substance transfer system, comprising:
- (a) a transfer device including;
(1) a transfer housing defining an interior chamber;
(2) a first septum movably disposed in a distal end of the chamber in a sealing relationship with the chamber, the first septum having a distal surface at or near a distal edge of the transfer housing;
(3) a cannula extending through the chamber, and wherein, when the transfer device is uncoupled from the receiver device, a distal tip of the cannula is positioned proximal of the distal edge of the transfer housing;
(4) a biasing member inside the chamber, the biasing member adapted to bias the first septum toward the distal end of the chamber; and
(b) a receiver device adapted to removably couple to the transfer device, the receiver device including;
(1) a receiver housing defining an interior passageway, wherein the interior passageway is in communication with a distal tip of the cannula when the transfer device and receiver device are coupled to one another;
(2) a second septum disposed in a proximal region of the housing, the second septum having a proximal surface at or near a proximal edge of the housing, wherein the proximal surface of the second septum is in juxtaposed contact with the distal surface of the first septum when the transfer device and receiver device are coupled to one another and wherein the second septum provides a barrier to prevent fluid from escaping from the interior passageway of the receiver housing.
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Abstract
Disclosed is a fluid transfer system for transferring a substance from one vessel to another vessel while avoiding leakage of liquid and gas contaminants. The transfer system includes a needle safe design that is facilitated by a housing that shrouds a tip of a fluid transfer cannula such that the cannula tip is not exposed for inadvertent puncture. This feature may also be enhanced by use of a blunt tipped cannula. The fluid transfer system permits multiple access by enabling the easy swabbing of a septum prior to use.
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Citations
13 Claims
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1. A medical substance transfer system, comprising:
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(a) a transfer device including;
(1) a transfer housing defining an interior chamber;
(2) a first septum movably disposed in a distal end of the chamber in a sealing relationship with the chamber, the first septum having a distal surface at or near a distal edge of the transfer housing;
(3) a cannula extending through the chamber, and wherein, when the transfer device is uncoupled from the receiver device, a distal tip of the cannula is positioned proximal of the distal edge of the transfer housing;
(4) a biasing member inside the chamber, the biasing member adapted to bias the first septum toward the distal end of the chamber; and
(b) a receiver device adapted to removably couple to the transfer device, the receiver device including;
(1) a receiver housing defining an interior passageway, wherein the interior passageway is in communication with a distal tip of the cannula when the transfer device and receiver device are coupled to one another;
(2) a second septum disposed in a proximal region of the housing, the second septum having a proximal surface at or near a proximal edge of the housing, wherein the proximal surface of the second septum is in juxtaposed contact with the distal surface of the first septum when the transfer device and receiver device are coupled to one another and wherein the second septum provides a barrier to prevent fluid from escaping from the interior passageway of the receiver housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification