Adaptor for mounting a fluid handling device on a catheter tubing
First Claim
1. An adapter for attaching a fluid handling device to a catheter comprising:
- a body having a proximal end, a distal end and an open passageway therethrough, said passageway including a seat to receive the catheter and a cavity distal to said catheter seat;
a gasket disposed in said cavity to form a substantially fluid tight seal about the catheter when the catheter is positioned on said catheter seat;
a retainer, disposed on the distal end of the body over said gasket, said retainer having an opening therethrough substantially aligned with said passageway sufficient to allow the catheter to pass through into said passageway to engage said gasket and said catheter seat, said retainer having a plurality of flexible projections into said opening being sized and shaped to engage the catheter and be proximally deflected by the placement of the catheter on said catheter seat; and
a rotatable collar disposed over said retainer on said distal end of said body, said collar having an open port therethrough substantially aligned with said passageway to allow placement of the catheter into said passageway, said collar having a plurality of proximal protuberances disposed to engage said flexible projections and to prevent distal flexion of said flexible projections on said retainer when said collar is in a first position with respect to said body thereby to retain the catheter in said adapter for attachment to a fluid handling device, whereby said protuberances being disposed not to engage said flexible projections when said collar is rotated to a second position with respect to said body thereby to allow a distal flexion of said projections and withdrawal of the catheter from said adapter.
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Accused Products
Abstract
An adapter of the present invention useful for attaching a fluid handling device to a catheter includes a body having a proximal end, a distal end and an open passageway therethrough. The passageway includes a seat to receive the catheter and a cavity distal to the catheter seat. There is a gasket disposed in the cavity to form a substantially fluid tight seal about the catheter when the catheter is positioned on the catheter seat. The adapter further includes a retainer, disposed on the distal end of the body over the gasket with an opening therethrough that is substantially aligned with the passageway. The opening is sufficient to allow the catheter to pass through into the passageway to engage the gasket and the catheter seat. The retainer has a plurality of flexible projections into the opening that are sized and shaped to engage the catheter and be proximally deflected by the placement of the catheter on the catheter seat. There is a rotatable collar disposed over the retainer on the proximal end of the body, with an open port therethrough that is substantially aligned with the passageway to allow placement of the catheter into the passageway. The collar has a plurality of proximal protuberances disposed to engage the flexible projections and to prevent distal flexion of the flexible projections on the retainer when the collar is in a first position with respect to the body thus to retaining the catheter in the adapter for attachment to a fluid handling device. Additionally, the protuberances are disposed not to engage the flexible projections when the collar is rotated to a second position with respect to the body thereby to allow a distal flexion of the projections and a withdrawal of the catheter from the adapter.
76 Citations
18 Claims
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1. An adapter for attaching a fluid handling device to a catheter comprising:
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a body having a proximal end, a distal end and an open passageway therethrough, said passageway including a seat to receive the catheter and a cavity distal to said catheter seat; a gasket disposed in said cavity to form a substantially fluid tight seal about the catheter when the catheter is positioned on said catheter seat; a retainer, disposed on the distal end of the body over said gasket, said retainer having an opening therethrough substantially aligned with said passageway sufficient to allow the catheter to pass through into said passageway to engage said gasket and said catheter seat, said retainer having a plurality of flexible projections into said opening being sized and shaped to engage the catheter and be proximally deflected by the placement of the catheter on said catheter seat; and a rotatable collar disposed over said retainer on said distal end of said body, said collar having an open port therethrough substantially aligned with said passageway to allow placement of the catheter into said passageway, said collar having a plurality of proximal protuberances disposed to engage said flexible projections and to prevent distal flexion of said flexible projections on said retainer when said collar is in a first position with respect to said body thereby to retain the catheter in said adapter for attachment to a fluid handling device, whereby said protuberances being disposed not to engage said flexible projections when said collar is rotated to a second position with respect to said body thereby to allow a distal flexion of said projections and withdrawal of the catheter from said adapter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An adapter for attaching a fluid handling device to a catheter comprising:
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a body having a proximal end, a distal end and an open passageway therethrough, said passageway including a seat to receive the catheter and a cavity distal to said catheter seat; a gasket disposed in said cavity to form a substantially fluid tight seal about the catheter when the catheter is positioned on said catheter seat; a retainer, disposed on the distal end of the body over said gasket, said retainer having an opening therethrough substantially aligned with said passageway sufficient to allow the catheter to pass through into said passageway to engage said gasket and said catheter seat, said retainer having four flexible projections into said opening being sized and shaped to engage the catheter and be proximally deflected by the placement of the catheter on said catheter seat;
said projections on said retainer each having an attached end and a free end comprising a sharp wedge that projects into said opening in said retainer and disposed to engage the catheter when the catheter is placed into said passageway onto said catheter seat;a rotatable collar disposed over said retainer on said distal end of said body, said collar having an open port therethrough substantially aligned with said passageway to allow placement of the catheter into said passageway, said collar having a plurality of proximal protuberances disposed to engage said flexible projections and to prevent distal flexion of said flexible projections on said retainer when said collar is in a first position with respect to said body thereby to retain the catheter in said adapter for attachment to a fluid handling device, whereby said protuberances being disposed not to engage said flexible projections when said collar is rotated to a second position with respect to said body thereby to allow a distal flexion of said projections and a withdrawal of the catheter from said adapter.
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18. A method for attaching an adapter useful for attachment of a fluid handling device to a catheter comprises:
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providing an adapter including a body having a proximal end, a distal end and an open passageway therethrough, said passageway including a seat to receive the catheter, and a cavity distal to said catheter seat; a gasket disposed in said cavity to form a substantially fluid tight seal about the catheter when the catheter is positioned on said catheter seat; a retainer, disposed on the distal end of the body over said gasket, said retainer having an opening therethrough substantially aligned with said passageway sufficient to allow the catheter to pass through to engage said gasket and said catheter seat, said retainer having a plurality of flexible projections into said opening being sized and shaped to engage the catheter and be proximally deflected by the placement of the catheter on said catheter seat; and a rotatable collar disposed over said retainer on said distal end of said body, said collar having an open port therethrough substantially aligned with said passageway to allow placement of the catheter into the passageway, said collar having a plurality of proximal protuberances disposed to engage said flexible projections and to prevent distal flexion of said flexible projections on said retainer when said collar is in a first position with respect to said body thereby to retain the catheter in said adapter for attachment to a fluid handling device, whereby said protuberances being disposed not to engage said flexible projections when said collar is rotated to a second position with respect to said body thereby to allow a distal flexion of said projections and a withdrawal of the catheter from said adapter, wherein said collar is in said first position with respect to said body; inserting a proximal end of a catheter into said passageway through said port in said collar; and advancing the end of the catheter proximally until the proximal end of the catheter is positioned on said catheter seat, thereby attaching said adapter to the catheter.
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Specification