Overmolded medical connector tubing and method
First Claim
1. A high pressure medical connector tubing assembly, comprising:
- a tube element comprising opposed tube ends and a passageway therethrough;
an end element overmolded to at least one of the opposed tube ends to provide an overmolded end element, the end element comprising an annular end portion having a preselected axial length, the annular end portion defining an entranceway; and
a connector element comprising a connector hub defining a receiving cavity, the tube end with the overmolded end element fixedly secured in the receiving cavity, the connector element comprising a connector port defining a fluid passageway;
wherein an axial location of radial stress concentration in the connector hub is preselected by changing the axial length of the annular end portion in the receiving cavity; and
wherein the entranceway and the fluid passageway have a common internal diameter and abut to define a smooth transition seam between the fluid passageway and the entranceway to maintain laminar flow conditions across the smooth transition seam.
3 Assignments
0 Petitions
Accused Products
Abstract
A high pressure medical connector tubing assembly includes a high pressure medical connector tubing assembly, including a tube element having opposed tube ends and a passageway, an end element overmolded to at least one of the opposed tube ends, the end element having an annular end portion having a preselected length, and a connector element having a connector hub defining a receiving cavity. The preselected length of the annular end portion may be used to pre-control the axial location of stress concentration in the connector hub. A method of forming the high pressure medical connector tubing assembly includes providing a tube element comprising opposed tube ends and a passageway therethrough, overmolding an end element onto at least one of the opposed tube ends, providing a connector element comprising a connector hub defining a receiving cavity, and securing the tube end with the overmolded end element in the receiving cavity.
111 Citations
18 Claims
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1. A high pressure medical connector tubing assembly, comprising:
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a tube element comprising opposed tube ends and a passageway therethrough; an end element overmolded to at least one of the opposed tube ends to provide an overmolded end element, the end element comprising an annular end portion having a preselected axial length, the annular end portion defining an entranceway; and a connector element comprising a connector hub defining a receiving cavity, the tube end with the overmolded end element fixedly secured in the receiving cavity, the connector element comprising a connector port defining a fluid passageway; wherein an axial location of radial stress concentration in the connector hub is preselected by changing the axial length of the annular end portion in the receiving cavity; and wherein the entranceway and the fluid passageway have a common internal diameter and abut to define a smooth transition seam between the fluid passageway and the entranceway to maintain laminar flow conditions across the smooth transition seam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of forming a high pressure medical connector tubing assembly, comprising:
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providing a tube element comprising opposed tube ends and a passageway therethrough; overmolding an end element onto at least one of the opposed tube ends to provide an overmolded end element, the end element comprising an annular end portion having a preselected axial length, the annular end portion defining an entranceway; providing a connector element comprising a connector hub defining a receiving cavity, the connector element comprising a connector port defining a fluid passageway; and securing the tube end with the overmolded end element in the receiving cavity; wherein an axial location of radial stress concentration in the connector hub is preselected by changing the axial length of the annular end portion in the receiving cavity; and wherein the entranceway and the fluid passageway have a common internal diameter and abut to define a smooth transition seam between the fluid passageway and the entranceway to maintain laminar flow conditions across the smooth transition seam. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification