Medical hub and method of using same
First Claim
1. A transcutaneous component of a medical access assembly that comprises separate, connectable transcutaneous and subcutaneous components which, respectively, define transcutaneous and subcutaneous channels that, in combination, establish a complete long-term body access channel extending from a proximal location outside the skin, through the transcutaneous and subcutaneous components, to a distal internal location in a living body, the transcutaneous and subcutaneous components adapted for being subcutaneously connected at a subcutaneous connection location to join the respective transcutaneous and subcutaneous channels, wherein the transcutaneous component comprises a unibody construction that includes:
- (a) a hub having at least first and second sides, and with integral skirt and tube members disposed along the first side of the hub, whereby the tube projects transcutaneously from an interior region of the hub, through the first side of the hub, to above the skin surface when the hub is implanted, and the skirt covers and seals the juncture between the first side of the hub and the tube;
(b) a hub passageway through the hub interior region providing a connection between the interior of the tube and an outlet connector at the second side of the hub, whereby a transcutaneous channel is defined that runs seriatim from outside the body, through the tube, through the hub passageway, to the outlet connector; and
,(c) porous tissue ingrowth material that covers at least enough of the skirt and tube members to provide a substantially continuous porous tissue ingrowth surface between the skirt and the skin surface when the hub is implanted;
and further comprising;
a right-angle conduit member connected to the end of the tube that projects above the skin surface;
an extension tube with proximal and distal extension tube ends wherein the distal extension tube end is connected to the right-angle conduit member, and the proximal extension tube end is connected to a luer assembly; and
a catheter tube that runs at least through the interior of an extended transcutaneous channel defined by the components of the transcutaneous component assembly from the luer assembly at a proximal end of the extended transcutaneous channel to the outlet connector at a distal end of the extended transcutaneous channel.
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Accused Products
Abstract
Methods and apparatus are disclosed for making and using adjustable epidermal tissue ingrowth cuff and catheter assemblies for transcutaneous placement to provide periodic or continuous external access for medical purposes to an interior body region of a patent who requires such medical treatment over an extended period of time.
88 Citations
13 Claims
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1. A transcutaneous component of a medical access assembly that comprises separate, connectable transcutaneous and subcutaneous components which, respectively, define transcutaneous and subcutaneous channels that, in combination, establish a complete long-term body access channel extending from a proximal location outside the skin, through the transcutaneous and subcutaneous components, to a distal internal location in a living body, the transcutaneous and subcutaneous components adapted for being subcutaneously connected at a subcutaneous connection location to join the respective transcutaneous and subcutaneous channels, wherein the transcutaneous component comprises a unibody construction that includes:
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(a) a hub having at least first and second sides, and with integral skirt and tube members disposed along the first side of the hub, whereby the tube projects transcutaneously from an interior region of the hub, through the first side of the hub, to above the skin surface when the hub is implanted, and the skirt covers and seals the juncture between the first side of the hub and the tube; (b) a hub passageway through the hub interior region providing a connection between the interior of the tube and an outlet connector at the second side of the hub, whereby a transcutaneous channel is defined that runs seriatim from outside the body, through the tube, through the hub passageway, to the outlet connector; and
,(c) porous tissue ingrowth material that covers at least enough of the skirt and tube members to provide a substantially continuous porous tissue ingrowth surface between the skirt and the skin surface when the hub is implanted; and further comprising;
a right-angle conduit member connected to the end of the tube that projects above the skin surface;
an extension tube with proximal and distal extension tube ends wherein the distal extension tube end is connected to the right-angle conduit member, and the proximal extension tube end is connected to a luer assembly; and
a catheter tube that runs at least through the interior of an extended transcutaneous channel defined by the components of the transcutaneous component assembly from the luer assembly at a proximal end of the extended transcutaneous channel to the outlet connector at a distal end of the extended transcutaneous channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of using a medical access assembly, said method comprising the steps of:
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(a) providing a unibody transcutaneous component of a medical access assembly that comprises separate, connectable transcutaneous and subcutaneous components which, respectively, define transcutaneous and subcutaneous channels that, in combination, establish a complete long-term body access channel extending from a proximal location outside the skin, through the transcutaneous and subcutaneous components, to a distal internal location in a living body such that a distal end of the subcutaneous component can be sited precisely at a desired treatment/diagnostic site, the transcutaneous and subcutaneous components adapted for being subcutaneously connected at a subcutaneous connection location to join the respective transcutaneous and subcutaneous channels, wherein the transcutaneous component comprises a unibody construction that includes; (i) a hub having at least first and second sides, and with integral skirt and tube members disposed along the first side of the hub, whereby the tube projects transcutaneously from an interior region of the hub, through the first side of the hub, to above the skin surface when the hub is implanted, and the skirt covers and seals the juncture between the first side of the hub and the tube; (ii) a hub passageway through the hub interior region providing a connection between the interior of the tube and an outlet connector at the second side of the hub, whereby a transcutaneous channel is defined that runs seriatim from outside the body, through the tube, through the hub passageway, to the outlet connector; and
,(iii) porous tissue ingrowth material that covers at least enough of the skirt and tube members to provide a substantially continuous porous tissue ingrowth surface between the skirt and the skin surface when the hub is implanted; (b) subcutaneously implanting the hub of the transcutaneous component such that the tube of the transcutaneous component projects transcutaneously from the first side of the hub to above the skin surface; (c) determining a subcutaneous distance from the outlet connector of the implanted hub to a treatment/diagnostic site distal of the implanted hub; (d) based on the subcutaneous distance determined in step (c), sizing the subcutaneous component to mate with the outlet connector when a distal end of the subcutaneous component is sited at the treatment/diagnostic site; (e) connecting a proximal end of the subcutaneous component to the outlet connector at the subcutaneous connection location distal of the second side of the hub to form the complete body access channel; and
,(f) accessing the treatment/diagnostic site via the body access channel, and further wherein the body access channel is used to deliver a medical instrument to the treatment/diagnostic site. - View Dependent Claims (10, 11, 12, 13)
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Specification