Patent ID: 11925779
Assignee: C. R. BARD, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An insertion device for inserting a catheter into a body of a patient, comprising:
a housing in which at least a portion of the catheter is initially disposed;
a needle distally extending from the housing, the needle having a proximal end coupled to a needle hub, the needle hub fixed to the housing, wherein at least the portion of the catheter is pre-disposed over the needle;
a guidewire;
a guidewire advancement assembly including a first user engagement component configured to selectively advance a distal end of the guidewire out a distal opening of the needle in preparation for distal advancement of the catheter;
a catheter advancement assembly including:
a second user engagement component configured to selectively advance the catheter in a distal direction, the first user engagement component distally slidable to a distal termination point that is proximate a proximal commencement point of the second user engagement component; and
a locking portion releasably engaged with the needle hub, the guidewire advancement assembly including a disengagement portion configured to release the locking portion of the catheter advancement assembly from the needle hub when the guidewire is distally advanced; and

a flash indicator configured to indicate a presence of a fluid within a needle lumen, the flash indicator including an elongate channel in fluid communication with the needle lumen, the channel defining a pathway through which the fluid present in the needle lumen is configured to pass, the fluid in the pathway observable by a user of the insertion device,
wherein the catheter advancement assembly further comprises a tail portion extending proximally in the housing, the tail portion comprising a first spring arm and a second spring arm, the locking portion of the catheter assembly comprising a first notch on the first spring arm and a second notch on the second spring arm, wherein the first notch is engaged with a first guide post of the needle hub and the second notch is engaged with a second guide post of the needle hub.