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US 12,251,527 B2Granted
Catheter having a closed tip and slit for a peripheral intravenous catheter assembly
AssigneeBecton, Dickinson and Company
InventorsS. Ray Isaacson, Bart D. Peterson
Life of this patent
Estimating the term…
Abstract
An apparatus may include a connector, which may include a proximal end and a distal end. The distal end of the connector may include a male luer adapter, which may be configured to couple with a proximal end of a catheter adapter. The apparatus may include a catheter, which may include a proximal end secured within the connector. The catheter may be configured to extend through an indwelling peripheral intravenous catheter. The catheter may include a closed distal end and a slit adjacent to the closed distal end. The slit may be closed under normal physiological pressures.
Claims12
An apparatus, comprising:
- a connector having a distal piece and a proximal piece, wherein the distal piece and the proximal piece are coupled together in a snap fit or an interference fit, a distal end of the distal piece of the connector having a male luer adapter configured to couple with a proximal end of a catheter adapter, a proximal end of the proximal piece of the connector having a female luer adapter;
- and
- a catheter secured within the distal piece of the connector, the catheter extending from the distal end of the distal piece of the connector, the catheter having a closed distal end and a slit adjacent the closed distal end, wherein the slit is closed under normal physiological pressures, wherein the proximal piece comprises a tubular element snugly inserted inside the proximal end of the catheter, the tubular element having an outer diameter slightly less than an inner diameter of the catheter;
- a guidewire hub comprising a male luer adapter removably coupled to the female luer adapter of the proximal piece of the connector;
- and
- a guidewire having a proximal end and a distal end, the guidewire extending from the distal end of the guidewire hub and disposed within the catheter, wherein the proximal end of the guidewire is secured within the guidewire hub.
3 more elements
A method, comprising:
- inserting into a vasculature of a patient a peripheral intravenous catheter assembly mounted over an introducer needle having a sharp distal tip such that the introducer needle extends through a peripheral intravenous catheter of the peripheral intravenous catheter assembly;
- after inserting into the vasculature of the patient the peripheral intravenous catheter assembly mounted over the introducer needle, withdrawing the introducer needle from the peripheral intravenous catheter assembly and leaving the peripheral intravenous catheter assembly within the vasculature;
- after withdrawing the introducer needle from the peripheral catheter assembly, flushing the peripheral intravenous catheter assembly with saline;
- and
- after flushing the peripheral intravenous catheter assembly, pushing a second catheter coupled to a guidewire through the peripheral intravenous catheter of the peripheral intravenous catheter assembly and into vasculature of a patient, wherein the second catheter is secured within a connector, the second catheter having a closed distal end and a slit adjacent the closed distal end, wherein the slit is closed under normal physiological pressures, wherein the guidewire is disposed within the second catheter to facilitate the pushing of the second catheter through the peripheral intravenous catheter, wherein in response to pushing the second catheter coupled to the guidewire through the second peripheral intravenous catheter, the second catheter and the guidewire are disposed distal to the peripheral intravenous catheter, wherein the second catheter is snugly fit within the peripheral intravenous catheter such that in response to pushing the second catheter coupled to the guidewire through the peripheral intravenous catheter, the saline within the peripheral intravenous catheter exits a distal end of the peripheral intravenous catheter and is flushed into the vasculature.
2 more elements
Dependencies are inferred from the claim text.