Multifunction adaptor for an open-ended catheter
First Claim
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1. An adaptor, comprising:
- a housing including a passageway extending therethrough, a distal opening for engaging a proximal end of a catheter, and a proximal portion of the passageway including a means for engaging a first end of a tunneler; and
a valve comprising a closed proximal end including a slit and an open distal end, the closed proximal end positioned in the passageway distal of the means for engaging, a wall including an inner surface that defines a lumen connecting the proximal and distal ends of the valve, the inner surface of the wall narrowing from the valve proximal end to a valve mid portion and enlarging from the valve mid portion to the valve distal end, the wall configured to guide a proximal end of a guidewire from the valve distal end through the slit.
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Abstract
A multifunction adaptor for an open-ended catheter that allows placement of the catheter while minimizing the risk of air embolism or blood loss through the open (proximal) end of the catheter body. In one variation, the design allows passage of a standard guidewire for “over-the-guidewire” placement techniques and a connection for catheter flushing using a standard syringe. In another variation, the multifunction adaptor is configured for coupling a tunneler to the proximal end of a catheter.
313 Citations
15 Claims
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1. An adaptor, comprising:
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a housing including a passageway extending therethrough, a distal opening for engaging a proximal end of a catheter, and a proximal portion of the passageway including a means for engaging a first end of a tunneler; and a valve comprising a closed proximal end including a slit and an open distal end, the closed proximal end positioned in the passageway distal of the means for engaging, a wall including an inner surface that defines a lumen connecting the proximal and distal ends of the valve, the inner surface of the wall narrowing from the valve proximal end to a valve mid portion and enlarging from the valve mid portion to the valve distal end, the wall configured to guide a proximal end of a guidewire from the valve distal end through the slit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An adaptor in combination with a tunneler, comprising:
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a passageway including a proximal portion having a means for engaging a first end of the tunneler and a means for engaging a second end of the tunneler, different from the first end of the tunneler, the means for engaging the second end of the tunneler positioned distal of the means for engaging the first end of the tunneler; and a valve including a closed proximal end with a slit positioned distal of the means for engaging the second end of the tunneler. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An adaptor in combination with a tunneler and catheter, comprising:
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a passageway including a proximal portion having separate first and second engagement features respectively connecting first and second ends of the tunneler to the adaptor, wherein the first and second ends of the tunneler have different configurations; a valve positioned in a distal portion of the passageway including a proximal end biased in a closed configuration, the proximal end positioned distal of the first and second engagement features; and a barbed locking interface extending from a distal end of the adaptor for insertion into a connector hub attached to a proximal end of the catheter, the connector hub including a notch for engaging the locking interface.
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Specification