Automatic lumen viscous reseal
First Claim
1. A lumen reseal device, comprisinga needle defining a flowpath,a housing comprising a proximal end and a distal end, the distal end having an inner seat leading to and defining an open lumen distal to said inner seat, wherein the needle is slidable through the housing,a viscous material contained within the housing, the viscous material being fluid enough for the needle to slide therethrough, yet semi-solid enough to conform to the housing distal inner seat, without flowing into said lumen, so as to form a seal thereat upon removal of the needle from the housing.
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Accused Products
Abstract
The invention features a needle defining a flowpath, a housing comprising a proximal end and a distal inner seat leading to and defining a lumen, and a viscous material contained within the housing. The needle is slidable through the housing and the viscous material contained therein. The viscous material is fluid enough for the needle to slide therethrough, yet semi-solid enough to conform to the housing distal inner seat so as to form a seal thereat and prevent flow of fluid or air through the lumen.
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Citations
13 Claims
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1. A lumen reseal device, comprising
a needle defining a flowpath, a housing comprising a proximal end and a distal end, the distal end having an inner seat leading to and defining an open lumen distal to said inner seat, wherein the needle is slidable through the housing, a viscous material contained within the housing, the viscous material being fluid enough for the needle to slide therethrough, yet semi-solid enough to conform to the housing distal inner seat, without flowing into said lumen, so as to form a seal thereat upon removal of the needle from the housing.
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10. A lumen reseal device, comprising
a needle defining a flowpath, a housing comprising a proximal end and a distal inner seat leading to and defining a lumen, wherein the needle is slidable through the housing, a viscous material contained within the housing, the viscous material being fluid enough for the needle to slide therethrough, yet semi-solid enough to conform to the housing distal inner seat, without flowing into said lumen, so as to form a seal thereat; -
a syringe having leading and trailing ends and defining a chamber, a plunger having leading and trailing ends, said plunger leading end being movable within said syringe chamber, a compressed spring wound around said plunger and biased against said plunger trailing end and said syringe trailing end so as to urge said plunger out of said syringe chamber, wherein said syringe is connected to said housing distal end such that said syringe chamber is in fluid communication with said needle flowpath. - View Dependent Claims (11)
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12. A device for thoracentesis, comprising
a needle defining a flowpath, a housing comprising a proximal end and a distal inner seat leading to and defining a lumen, wherein the needle is slidable through the housing, a viscous material contained within the housing, the viscous material being fluid enough for the needle to slide therethrough, yet semi-solid enough to conform to the housing distal inner seat, without flowing into said lumen, so as to form a seal thereat upon removal of the needle from the housing; a catheter tube attached to the distal end of the housing and defining a lumen that is contiguous with the lumen to which said housing distal inner seat leads, the catheter tube lumen being in fluid communication with the housing inner seat and being sealed off from the external environment when the needle is removed from the housing and the viscous material forms a seal against the housing inner seat. - View Dependent Claims (13)
Specification