Adaptor for use with point-of-care testing cartridge
First Claim
1. An adaptor unitarily molded from a plastic material and having a proximal end, a distal end and a passage extending between said ends, a frustoconical tip substantially adjacent said distal end and defining portions of said passage adjacent said distal end, a collar concentrically surrounding portions of said tip and spaced outwardly from said tip, said collar including an array of internal threads, said proximal end including an inner tubular wall surrounding and defining portions of said passage adjacent said proximal end, an outer tubular wall surrounding said inner tubular wall and spaced therefrom such that a substantially annular opening extends into said proximal end between said inner and outer tubular walls.
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0 Petitions
Accused Products
Abstract
An adaptor is provided for use with a syringe and a blunt cannula to efficiently deliver a sample of blood to a point-of-care testing cartridge. The syringe includes a generally cylindrical tip with a passage that communicates with a fluid receiving chamber of the syringe. An annular or toroidal bead extends around the tip. The adaptor includes proximal and distal ends and a passage extending between the ends. The proximal end of the adaptor is configured to telescope with the tip of the syringe and to snap into engagement with the bead around the tip of the syringe. The distal end of the adaptor includes a Luer tip and an internally threaded Luer collar. A plastic cannula can be threadedly mounted to the distal end of the adaptor to facilitate delivery of a fluid specimen to an entry point of a point-of-care testing cartridge.
136 Citations
17 Claims
- 1. An adaptor unitarily molded from a plastic material and having a proximal end, a distal end and a passage extending between said ends, a frustoconical tip substantially adjacent said distal end and defining portions of said passage adjacent said distal end, a collar concentrically surrounding portions of said tip and spaced outwardly from said tip, said collar including an array of internal threads, said proximal end including an inner tubular wall surrounding and defining portions of said passage adjacent said proximal end, an outer tubular wall surrounding said inner tubular wall and spaced therefrom such that a substantially annular opening extends into said proximal end between said inner and outer tubular walls.
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7. A syringe and adaptor assembly comprising:
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a syringe body having a proximal end, a distal end and a fluid receiving chamber therebetween, said fluid receiving chamber being open at said proximal end of said syringe body, a tip defined at said distal end of said syringe body, a tip passage extending through said tip and into communication with said fluid receiving chamber, said tip having an outer circumferential surface formed with an annular bead thereon; and
an adaptor having opposed proximal and distal ends and an adaptor passage extending between said ends, said distal end of said adaptor defining a Luer fitting, said proximal end of said adaptor comprising an inner tubular wall surrounding and defining a portion of said adaptor passage, said inner tubular wall being dimensioned for sliding insertion into said tip passage of said syringe body, said proximal end of said adaptor further comprising an outer tubular wall surrounding and spaced from said inner tubular wall, said outer tubular wall defining an inside diameter substantially conforming to external dimensions of said tip of said syringe body, and including an annular recess dimensioned and disposed for snapped engagement with said annular bead on said tip of said syringe body. - View Dependent Claims (8)
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9. A syringe assembly for delivering a fluid sample to a point-of-care testing cartridge, said testing cartridge having an internal reservoir and an entry port communicating with said internal reservoir, said assembly comprising:
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a syringe having a proximal end and a distal end, a fluid receiving chamber defined between said ends of said syringe, said chamber being open at said proximal end of said syringe, a substantially cylindrical tip projecting at said distal end and having a tip passage extending from said fluid receiving chamber to said distal end of said syringe;
an adaptor having a proximal end, a distal end and an adaptor passage extending between said ends, said distal end of said adaptor comprising a Luer tip surrounding said passage, said proximal end of said adaptor having an inner tubular wall dimensioned for slidable insertion in said tip passage of said syringe, an outer tubular wall dimensioned for surrounding and engaging outer circumferential portions of said tip of said syringe; and
a blunt cannula having proximal and distal ends and a lumen extending therebetween, said proximal end of said blunt cannula defining a Luer fitting configured for fluid-tight engagement with said Luer tip at said distal end of said adaptor, said distal end of said blunt cannula being cross-sectionally dimensioned for insertion into said entry portion of said testing cartridge. - View Dependent Claims (10, 11, 13, 14, 15, 16, 17)
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12. An assembly comprising:
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a point-of-care testing cartridge having an entry port, said entry port defining a selected internal diameter; and
an adaptor unitarily molded from a plastic material and having opposed proximal and distal ends and a passage extending between said ends, said proximal end of said adaptor comprising an inner tubular wall surrounding and defining portion of said passage adjacent said proximal end and an outer tubular wall surrounding and spaced from said inner tubular wall such that an annular space extends into said proximal end between said inner and outer tubular walls, a Luer tip disposed distally of said inner and outer tubular walls, a Luer collar surrounding said Luer tip, said Luer collar having an array of internal threads, and a nose projecting distally from said Luer tip to said distal end of said adaptor, said nose defining an outside cross-sectional dimension less than said inside diameter of said entry port of said testing cartridge, whereby said nose facilitates alignment and insertion of said adaptor into said entry port.
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Specification