A medical device includes an elongate shaft including a multifilar coil comprising a first strand and a second strand wound in the same winding direction, the multifilar coil comprising a first section having a first end and a second end wherein the first strand and the second strand are wound with identical pitch patterns between the first end and the second end of the first section, the multifilar coil further comprising a second section having a first end and a second end, wherein the first strand and the second strand are wound with different pitch patterns from each other between the first end and second end of the second section, and a polymeric tubular member coextending with the multifilar coil.

An intravenous (IV) catheter system may include a catheter adapter having a proximal end and a distal end. The IV catheter system may also include a cannula extending through the catheter adapter. A proximal end of the cannula may include a notch. The IV catheter system may also include a needle hub, which may be coupled to the proximal end of the catheter adapter. The needle hub may include a flashback chamber, which may be in fluid communication with the notch when the IV catheter system is in an insertion configuration.

Disclosed embodiments relate to devices and related methods for delivering a composition to a subject. In some embodiments, a device may include a catheter coupled to a handle. The handle may include proximal and distal handle portions that are moveable relative to one another to selectively expose a needle at a distal end of the catheter. The proximal handle portion may include a container coupling and a grip extending proximally from the container coupling.

A steerable medical instrument, such as a catheter or endoscope, comprises a tubular body having non-steerable section and steerable sections arranged from a proximal end to a distal end thereof. The tubular body defines a tool channel and a plurality of wire conduits formed along the wall of the tubular body. The steerable section includes wire-guiding members arranged in lengthwise direction alternated with void regions. A control wire arranged in a first conduit within the wall of the tubular body is connected to an actuator and transfers an actuating force to bend the steerable section. An electrical cable arranged along the wall of the tubular body has strain relief elements. The strain relief elements are portions of the cable arranged in at least one void region and configured to freely move within the void regions to provide strain relief to the electrical cable when the tubular body bends.

The present embodiments provide strain relief members for a medical device delivery system, methods of use thereof, and methods of manufacturing. In one embodiment a strain relief member may include a support having a first end with a first outer diameter, a second end having a second outer diameter, an inner surface facing a support lumen that extends axially through the support along a longitudinal axis, and an outer surface opposite to the inner surface. An embodiment may also include an overlay coupled to a portion of the outer surface of the support, where the overlay comprises a first material and the support comprises a second material, and the first material is more flexible than the second material. A liner may be disposed in a portion of the support lumen and a first connector disposed over a portion of the support.

A captivation catheter for use with a guide catheter and a guidewire or a treatment catheter. The captivation catheter includes a relatively rigid elongate member and a captivation mechanism such as an inflatable balloon capable of fixing the guidewire or the treatment catheter in place against an inner surface of the guide catheter. The captivation catheter can include a clip with an open end and a closed end that is placed on the captivation catheter at markings present for compatibility with a particular working length of the guide catheter. The markings can be visible at different viewing orientations.

An elongate tubular shaft having a lumen extending from a proximal portion to a distal portion may include an outer jacket forming an outer surface of the elongate tubular shaft, the outer jacket being formed from a first material having a first modulus of elasticity, a helical member extending from the proximal portion to the distal portion, a braided support member disposed about the helical member, and a strain relief layer formed from a second material having a second modulus of elasticity less than the first modulus of elasticity, wherein the strain relief layer is disposed about the helical member and radially inward of the outer jacket.

A medical device such as a catheter includes a shaft that extends from a proximal region to a distal region and that defines a shaft lumen extending therethrough. A hub is secured relative to the proximal region. A strain relief extends proximally over the shaft from the hub. At least one of the hub and the strain relief include a printed battery.

Mechanical Detachment Systems stemming from a corewire having a grooved slot for housing supplemental detachment means including SR threads, locking rings and variated pitches in helical groove driven systems which reliably detach instantaneously.

Embodiments disclosed herein relate to an aspiration catheter comprising a catheter body that can have a first end and a second end and an aspiration lumen extending through the catheter body. The aspiration lumen can have an aspiration opening located in a distal portion of the aspiration catheter. The catheter can have an assistive jet element extending through a wall of the aspiration lumen. The assistive jet element can have an assistive jet channel. The assistive jet element can be adaptable to draw blood through the assistive jet element from a location outside of the catheter body adjacent to the assistive jet element and into the aspiration lumen when suction is applied to the aspiration lumen and can be configured to break apart a thrombus or obstruction in the aspiration lumen.