Environmental seal for fluid delivery device
First Claim
Patent Images
1. An environmental seal for a fluid delivery device, comprising:
- a cap comprising;
a carrier portion including a proximal end and a distal end and a channel extending through the carrier from the proximal end to the distal end;
a plug located in the solid carrier portion, the plug being configured to slidably receive a cannula therethrough; and
wherein the cap is formed in a two-shot molding process such that a first shot forms the carrier portion and a second shot forms the plug in the carrier portion and obstructing the channel, wherein the carrier portion is formed from a material having a relatively high durometer and the plug is formed from a material having a relatively low durometer; and
a cap receptacle configured to mate with the cap, wherein the cap receptacle includes a proximal end and a distal end and a channel extending through the cap receptacle from the proximal end to the distal end, wherein the distal end of the carrier portion comprises an inner sleeve surrounding the plug, and wherein the proximal end of the cap receptacle comprises an outer sleeve configured to mate with the inner sleeve of the carrier portion and to apply a compressive force to the inner sleeve and the plug.
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Accused Products
Abstract
An environmental seal for a fluid delivery device may include a 2-shot molded cap including a carrier and a low durometer silicone plug. The seal also may include a cap receptacle that applies compressive force to the plug displacing the plug material and forming a seal between the cap, the plug and the cap receptacle. A cannula may be slidably received in the plug and may move freely through the plug without compromising the seal.
77 Citations
19 Claims
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1. An environmental seal for a fluid delivery device, comprising:
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a cap comprising; a carrier portion including a proximal end and a distal end and a channel extending through the carrier from the proximal end to the distal end; a plug located in the solid carrier portion, the plug being configured to slidably receive a cannula therethrough; and wherein the cap is formed in a two-shot molding process such that a first shot forms the carrier portion and a second shot forms the plug in the carrier portion and obstructing the channel, wherein the carrier portion is formed from a material having a relatively high durometer and the plug is formed from a material having a relatively low durometer; and a cap receptacle configured to mate with the cap, wherein the cap receptacle includes a proximal end and a distal end and a channel extending through the cap receptacle from the proximal end to the distal end, wherein the distal end of the carrier portion comprises an inner sleeve surrounding the plug, and wherein the proximal end of the cap receptacle comprises an outer sleeve configured to mate with the inner sleeve of the carrier portion and to apply a compressive force to the inner sleeve and the plug. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An environmental seal for a fluid delivery device, comprising:
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a cap comprising; a solid carrier formed from a material having a first durometer, the solid carrier including a proximal end and a distal end and defining a channel extending from the proximal end to the distal end; and a solid plug formed from a material having a second durometer lower than the first durometer, the solid plug received in the solid carrier and obstructing the channel; and a cap receptacle configured to mate with the cap, wherein the cap receptacle includes a proximal end and a distal end and defines a channel extending from the proximal end to the distal end of the cap receptacle. - View Dependent Claims (14)
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15. A cannula seal comprising:
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a nozzle cap comprising a carrier and a plug located in a cavity of the carrier; a nozzle boss engaged with the nozzle cap; a nozzle received in the nozzle boss; a proximal cannula passing from a distal end of the nozzle cap through the plug and into the nozzle boss, wherein the plug forms a seal between the nozzle cap, the nozzle, the nozzle boss and the proximal cannula; and a distal cannula secured between the nozzle boss and the nozzle, wherein the distal cannula, the nozzle and the proximal cannula form a continuous fluid pathway that is sealed from the environment. - View Dependent Claims (16, 17, 18, 19)
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Specification