Catheter attachment device
First Claim
1. Connector apparatus for coupling an end of a resilient tube about the exterior of a tubular extension of a fluid transfer assembly, said extension extending along a port axis and having an outer diameter d, said connector apparatus comprising:
- A. a rigid tubular sleeve extending along a reference axis, said sleeve having an inner diameter Ds, where Ds is greater than d, andB. a rigid body part disposed about said tubular sleeve and associated capture means for capturing said sleeve within said body part, whereby said sleeve is freely rotatable about said reference axis with respect to said body part,wherein said body part further includes twist lock means responsive to coaxial alignment of said port axis and said reference axis and to subsequent rotation of said body part about said reference axis and said port axis, for selectively engaging said body part to a fluid transfer assembly having a tubular extension, when said sleeve is coaxial with and positioned about said tubular extension.
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0 Petitions
Accused Products
Abstract
A connector for detachably securing an end of a tube, such as a catheter, to a fluid port of a fluid transfer assembly, such as an implantable device, the connector having a body part which defines a coupler for coupling to a coupler receiver of the transfer assembly. The connector includes a sleeve which fits within the body part and defines an aperture for compressively receiving an end of the tube which has been fitted over a fluid port of the transfer assembly. The body part is rotatable about the sleeve to facilitate coupling of the coupler and coupler receiver. In one embodiment, the connector further includes bayonet pins for twist locking the coupler in the coupling receiver. A tie down may be provided to prohibit the coupler from being inadvertently detached from the coupling receiver. A tactile indicator may be included to indicate correct coupling of the coupler and the coupler receiver. The sleeve generates a compressive force to secure the tube to the fluid port. A compression insert may be inserted between the sleeve and tube to provide a higher degree of compression of the tube upon the fluid port. In one embodiment, the tube is a catheter coupled to a patient and the fluid transfer assembly is an implantable device, for subcutaneous delivery of fluid to a patient in which the catheter and device have been implanted.
258 Citations
30 Claims
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1. Connector apparatus for coupling an end of a resilient tube about the exterior of a tubular extension of a fluid transfer assembly, said extension extending along a port axis and having an outer diameter d, said connector apparatus comprising:
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A. a rigid tubular sleeve extending along a reference axis, said sleeve having an inner diameter Ds, where Ds is greater than d, and B. a rigid body part disposed about said tubular sleeve and associated capture means for capturing said sleeve within said body part, whereby said sleeve is freely rotatable about said reference axis with respect to said body part, wherein said body part further includes twist lock means responsive to coaxial alignment of said port axis and said reference axis and to subsequent rotation of said body part about said reference axis and said port axis, for selectively engaging said body part to a fluid transfer assembly having a tubular extension, when said sleeve is coaxial with and positioned about said tubular extension. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. Connector apparatus for coupling an end of a resilient tube about the exterior of a tubular extension of a fluid transfer assembly, said extension extending along a port axis and having an outer diameter d, said connector apparatus comprising:
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A. a rigid tubular sleeve extending along a reference axis, said sleeve having an inner diameter Ds, where Ds is greater than d, and B. a rigid body part disposed about said tubular sleeve and associated capture means for capturing said sleeve within said body part, whereby said sleeve is freely rotatable about said reference axis with respect to said body part, C. a substantially annular compression insert, said insert having an external surface adapted for at least partial receipt within said sleeve, wherein said body part further includes twist lock means responsive to coaxial alignment of said port axis and said reference axis and to subsequent rotation of said body part about said reference axis and said port axis, for selectively engaging said body part to a fluid transfer assembly having a tubular extension, when said sleeve is coaxial with and positioned about said tubular extension, and when at least a portion of said insert is compressively held against the interior of said sleeve. - View Dependent Claims (27, 28, 29, 30)
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Specification