Fluid handling device and method of making same
First Claim
1. A needlefree access device comprising:
- a) a housing having an inlet and an inlet channel; and
b) a combination outlet, biasing and piston member havingi) a piston section moveable between a closed position in which the piston section is in the inlet channel and an open position in which the piston section is inside the housing below the inlet channel but allows fluid to flow through the inlet channel,ii) a biasing section connected to the piston section that normally biases the piston section into the inlet channel, wherein the biasing section has a completely solid cross-section in its central section; and
iii) an outlet section interlocked to the biasing section and having an outlet fitting in fluid communication with the inside of the housing;
wherein the piston section, biasing section and outlet section are connected together such that they can be handled as one piece when assembled with the housing to make the needlefree access device.
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Accused Products
Abstract
A fluid handling device, such as a needlefree access device, includes a housing having an inlet and an inlet channel; and a flow control member comprising a combination outlet, biasing and piston member. The flow control member includes a piston section moveable between a closed position in which the piston section is in the inlet channel and an open position in which the piston section is inside the housing below the inlet channel but allows fluid to flow through the inlet channel; a biasing section connected to the piston section that normally biases the piston section into the inlet channel; and an outlet section connected to the biasing section having an outlet fitting in fluid communication with the inside of the housing. The piston section, biasing section and outlet section are connected together such that they can be handled as one piece when assembled with the housing to make the needlefree access device. The access device can be configured as a Y-site access device, or used on other devices such as an IV bag. A check valve made by a two shot molding process is also disclosed.
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Citations
25 Claims
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1. A needlefree access device comprising:
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a) a housing having an inlet and an inlet channel; and b) a combination outlet, biasing and piston member having i) a piston section moveable between a closed position in which the piston section is in the inlet channel and an open position in which the piston section is inside the housing below the inlet channel but allows fluid to flow through the inlet channel, ii) a biasing section connected to the piston section that normally biases the piston section into the inlet channel, wherein the biasing section has a completely solid cross-section in its central section; and iii) an outlet section interlocked to the biasing section and having an outlet fitting in fluid communication with the inside of the housing;
wherein the piston section, biasing section and outlet section are connected together such that they can be handled as one piece when assembled with the housing to make the needlefree access device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of making a needlefree access device comprising:
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a) providing a first part comprising a monolithically formed housing; b) providing a second part comprising a combination outlet section, biasing section and piston section, with the outlet section interlocked to the biasing section and the biasing section connected to the piston section, the biasing section having a completely solid cross-section in its central section; c) constructing the needlefree access device by securing the second part within the first part, the access device being made only from the first and second parts.
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21. A needlefree access device comprising:
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a) a housing having an inlet and an inlet channel; and b) a combination outlet, biasing and piston member having i) a piston section comprising a normally elliptical top portion with a wedge shaped opening therein and which is moveable between a closed position in which the piston section is in the inlet channel and an open position in which the piston section is inside the housing below the inlet channel but allows fluid to flow through the inlet channel, ii) a biasing section connected to the piston section that normally biases the piston section into the inlet channel; and iii) an outlet section interlocked to the biasing section and having an outlet fitting in fluid communication with the inside of the housing;
wherein the piston section, biasing section and outlet section are connected together such that they can be handled as one piece when assembled with the housing to make the needlefree access device. - View Dependent Claims (22, 23, 24, 25)
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Specification