Catheter assembly including sealing member
First Claim
Patent Images
1. A catheter assembly, comprising:
- a catheter, an inner wall of the catheter defining at least one lumen;
a hub including a hub extension dimensioned to be received within the lumen of the catheter and a casing defining a cavity; and
an expandable sealing member positioned within the cavity, the expandable sealing member configured to increase in volume upon exposure to moisture,wherein when the hub extension is received within the lumen of the catheter, a proximal end of the catheter abuts the expandable sealing member positioned between the inner wall of the catheter and the hub extension such that upon exposure to moisture, the expandable sealing member fills in any gaps between the hub extension and the inner wall of the catheter defining the lumen.
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Abstract
A catheter assembly includes a catheter, a hub, and a sealing member. The catheter defines one or more lumens. The hub includes one or more hub extensions dimensioned to be received within the one or more lumens of the catheter. The sealing member is positioned adjacent the interface of the catheter and the hub. The sealing member includes an expandable material which increases in volume upon exposure to moisture.
41 Citations
20 Claims
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1. A catheter assembly, comprising:
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a catheter, an inner wall of the catheter defining at least one lumen; a hub including a hub extension dimensioned to be received within the lumen of the catheter and a casing defining a cavity; and an expandable sealing member positioned within the cavity, the expandable sealing member configured to increase in volume upon exposure to moisture, wherein when the hub extension is received within the lumen of the catheter, a proximal end of the catheter abuts the expandable sealing member positioned between the inner wall of the catheter and the hub extension such that upon exposure to moisture, the expandable sealing member fills in any gaps between the hub extension and the inner wall of the catheter defining the lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A catheter assembly comprising:
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a catheter comprising an inner wall, a first connector surface of the inner wall defining a lumen; a hub including a hub extension dimensioned to be received within the lumen of the catheter, the hub extension defining a second connector surface; and an expandable sealing member configured to increase in volume upon exposure to moisture, wherein when the hub extension is received within the lumen of the catheter, the sealing member is configured to simultaneously contact the first connector surface and the second connector surface upon exposure to moisture. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A catheter assembly, comprising:
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a catheter comprising an inner wall defining a lumen; a hub including a hub extension dimensioned to be received within the lumen of the catheter; and an expandable sealing member configured to increase in volume upon exposure to moisture, wherein the sealing member is coated or chemically bonded to at least a portion of the inner wall of the catheter defining the lumen, coated or chemically bonded to an external surface of the hub extension, or both coated or chemically bonded to the at least the portion of the inner wall of the catheter defining the lumen and the external surface of the hub extension, wherein, upon exposure to moisture and when the external surface of the hub extension is received within the lumen of the catheter, the sealing member is configured to expand to form a seal between the catheter and the hub. - View Dependent Claims (17, 18, 19, 20)
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Specification