Low-profile access port
First Claim
1. A low-profile access port for subcutaneous placement in a patient, comprising:
- a body including;
a conduit;
a receiving cup including;
a concavely shaped surface having a length greater than a width;
an upper opening lying in an upper plane;
a lower opening in communication with the conduit; and
a single guide groove defining a depression in the concavely shaped surface along the length from a proximal portion of the receiving cup to the lower opening to redirect an impinging distal tip of a needle into the conduit via the lower opening; and
a palpation bump positioned at a proximal end of the receiving cup, the palpation bump extending through the upper plane; and
a valve/seal assembly disposed in the conduit that enables passage of a catheter therethrough.
1 Assignment
0 Petitions
Accused Products
Abstract
A low-profile access port for subcutaneous implantation within the body of a patient is disclosed. The access port includes a receiving cup that provides a relatively large subcutaneous target to enable a catheter-bearing needle to access the port without difficulty. In addition, the access port includes a valve/seal assembly to permit pressurized fluid injection through the port while preventing backflow. In one embodiment, therefore, a low-profile access port comprises a body including a conduit with an inlet port at a proximal end thereof, and a receiving cup. The receiving cup is concavely shaped to direct a catheter-bearing needle into the conduit via the inlet port. The receiving cup is oriented substantially toward a skin surface when subcutaneously implanted within the patient to ease needle impingement thereon. A valve/seal assembly disposed in the conduit enables passage of the catheter therethrough while preventing fluid backflow.
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Citations
23 Claims
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1. A low-profile access port for subcutaneous placement in a patient, comprising:
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a body including; a conduit; a receiving cup including; a concavely shaped surface having a length greater than a width; an upper opening lying in an upper plane; a lower opening in communication with the conduit; and a single guide groove defining a depression in the concavely shaped surface along the length from a proximal portion of the receiving cup to the lower opening to redirect an impinging distal tip of a needle into the conduit via the lower opening; and a palpation bump positioned at a proximal end of the receiving cup, the palpation bump extending through the upper plane; and a valve/seal assembly disposed in the conduit that enables passage of a catheter therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for manufacturing a low-profile access port for subcutaneous placement in a patient, the method comprising:
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providing a body defining a conduit, the body including; a receiving cup defining an upper opening and a concavely shaped surface, the upper opening lying in an upper plane, the receiving cup including; a lower opening in communication with the conduit; and a single guide groove defining a depression in the concavely shaped surface to direct an impinging distal tip of a catheter-bearing needle into the conduit via the lower opening; and a distal cavity in communication with the conduit; overmolding a silicone housing around the body to form a top surface and a bottom surface of the low-profile access port, wherein the bottom surface is parallel to the upper plane; placing a valve/seal assembly in the distal cavity; and inserting a proximal end of a stem into the distal cavity to capture the valve/seal assembly in the body between the conduit and the stem.
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18. A low-profile access port for subcutaneous placement in a patient, comprising:
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a body including; a conduit; a receiving cup including; a concavely shaped surface having a length greater than a width; an upper opening lying in an upper plane; a lower opening in communication with the conduit; and a guide groove defining a depression in the concavely shaped surface along the length from a proximal portion of the receiving cup to the lower opening to guide a distal tip of a needle toward the lower opening; and a palpation bump positioned at a proximal end of the receiving cup, the palpation bump extending above the upper plane; and a valve/seal assembly in communication with the conduit that enables passage of a catheter therethrough, and including at least one seal for preventing backflow through the valve/seal assembly. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification