Abstract: An injection device configured for attachment to the skin of a patient using an adhesive layer includes a release liner covering the adhesive layer thereby preventing skin attachment. The release liner comprises a sheet of material where a first surface contacts the adhesive layer, and an aperture defining a passage for a film connected to a first sterile barrier film located within the injection device. An end of the film is connected to a second surface of the sheet of material that is opposite to the first surface, and the release liner is covered by a strengthening sheet connected to the second surface and covering the aperture and the end of the film.

Abstract: A medical device, for example a delivery catheter, may include a handle portion, a shaft portion extending distally from the handle portion, a deployment mechanism, and an actuation member positioned on the handle portion. The shaft portion may include a working channel and a distal tip portion having a payload chamber configured to receive a payload, such as a bio-absorbable foam. The distal tip portion may be operatively connected to the working channel. The deployment mechanism may be positioned in the working channel, and may be operable to deploy the payload out from the distal tip portion. The actuation member may be actuatable to operate the deployment mechanism.

Abstract: In the present disclosure, embodiments include flaring tip microcatheters, methods of deploying flaring tip microcatheters, and embolization treatment methods. The flaring tip microcatheter may include a hollow shaft having a shaft lumen defined therein, a core disposed within the shaft lumen, and a tip including at least two petals affixed to a distal end of the core, the at least two petals including at least two wires wherein the core is hollow and defines a core lumen. The at least two wires may be configured to pull the at least two petals to form a flared configuration of the tip. The flared configuration of the tip may allow for laminar flow of a therapeutic agent distally from the tip.

Abstract: A catheter assembly includes a catheter and an inner needle. The catheter has a catheter body and a flexible portion that is provided on a distal portion of the catheter body, includes a distal-most portion of the catheter, and is more flexible than the catheter body. The catheter body is made of a first material. The flexible portion is made of a second material. A change in flexibility of the second material between 25° C. and 37° C. is smaller than a change in flexibility of the first material between 25° C. and 37° C.

Abstract: A stylet for use in guiding a catheter to a predetermined location within the body of a patient includes a continuous core member for transmitting an electrical signal from a distal section of the stylet to a proximal end. The stylet includes a differing stiffness profile along its length. The differing stiffness characteristics are achieved by varying the number of strands of a wire, the diameter of each individual strand, twisting or braiding the strands, or varying the number of turns per unit length of the twisted strands. The stiffness of the stylet may decrease intermittently or continuously from the proximal end to the distal section. By using multiple strands bundled together, the beneficial conductive and, optionally, magnetic properties can be maximized while at the same time the stiffness characteristics can be modified.

Abstract: Medical devices and systems including electrical traces are provided. The medical device includes a sheath body (120) including an inner wall, an outer wall, and a central major lumen (20) extending through the sheath body (120) along a longitudinal axis. The central major lumen is defined by the inner wall. The medical device further includes at least one outer lumen (38) extending through said sheath body, wherein the at least one outer lumen (38) is disposed between the inner wall and the outer wall, at least one electrode (14) coupled to a distal portion of said sheath body (120), and at least one electrical trace (44). Each of the at least one electrodes (14) is coupled to at least one electrical trace (44), and the electrical trace (44) is disposed between the inner wall and the outer wall.

Abstract: A catheter system may include a needle assembly coupled to a catheter adapter. The needle assembly may include a housing, an introducer needle, a proximal opening, a distal opening, and a needle tip shield feature. A distal tip of the introducer needle may be configured to be proximally withdrawn from a first position to a second position in which a bump feature of the introducer needle contacts and is prevented from moving through the proximal opening. In response to withdrawal of the distal tip proximally from the second position to a third position, the housing may move proximally, and the needle tip shield feature may be released to block the distal opening. The needle tip shield feature may not contact the introducer needle when the distal tip moves proximally from the first position to the second position and from the second position to the third position.

Abstract: A catheter that includes a mechanism for deflecting a distal portion of a catheter may include a deflection knob including a first thread, a rod including a second thread that is coupled to the first thread, and a puller wire that is connected to the rod. The rod may additionally include a pocket to which the puller wire may be connected via a joining feature that may be secured in the pocket and attached to a proximal end of the puller wire. The joining feature may include a first ferrule joined, e.g., crimped, to the proximal end of the puller wire and a second ferrule secured, e.g., bonded, in the pocket and joined, e.g., crimped, to the first ferrule.

Abstract: Steerable catheter control handles and catheter assemblies that include pull wires and direction and magnitude controls on the handle operable such that adjustment of the direction and magnitude controls adjusts a direction and degree of catheter flex, thereby to steer the catheter as an operator directs.

Abstract: A delivery device for delivering an instrument into a catheter assembly may include a syringe, which may include a barrel and a plunger movable within the barrel. The plunger may include a handle and a stopper coupled to a distal end of the handle. The stopper may include a channel. The delivery device may include a guidewire disposed within the barrel and extending through the channel. In response to depression of the plunger, the guidewire may move through the channel and a first end of the guidewire may be advanced in the distal direction. A second end of the guidewire may be fixed.

Abstract: A deflectable vascular catheter includes a proximal handle assembly, an elongated sheath extending distally from the proximal handle assembly and including a deflectable distal end portion, an actuation mechanism operatively associated within an interior cavity of the proximal handle assembly for deflecting the distal end portion of the sheath, an anchor ring located at a distal end of the deflectable distal end portion of the sheath, and a pull wire extending from the actuation mechanism to the anchor ring. The pull wire has a non-circular cross-section and is laser welded to an exterior surface of the anchoring ring.

Abstract: A medical dispensing device which includes a catheter, an applicator tip at a distal end of the catheter, the catheter and the applicator tip defining a lumen having a longitudinal axis and a distal opening, a plunger in the lumen and movable along the longitudinal axis, and a plurality of elements in the lumen proximal to the distal opening and distal to the plunger, the plurality of elements stacked along the longitudinal axis for dispersement of one element at a time through the distal opening via a force applied by the plunger.

Abstract: A catheter includes a hollow shaft having a tip part decreasing in diameter in a direction of a distal end, and a coil body covering the hollow shaft. The tip part has a small diameter portion, a large diameter portion, and a tapered portion gradually increasing in diameter from the small diameter portion toward the large diameter portion. The coil body has a substantially cylindrical joint part at which an end portion of the coil body in the direction of the distal end is joined in the circumferential direction. The joint part is located over the tapered portion and/or the small diameter portion, and in a state in which the hollow shaft extends substantially linearly, the distance between an inner peripheral surface of the joint part and outer peripheral surfaces of the tapered portion and/or the small diameter portion increases in the direction of the distal end.

Abstract: A system for adapting a tubular surgical device for grasping by a surgical instrument is provided that has a distal portion, an adaptor positioned proximally and configured to be disposed about or within a lumen of the tubular surgical device, which has an effective durometer to resist crushing by the surgical instrument. In some embodiments, the adaptor is configured with an external diameter greater than the internal diameter of the lumen of the tubular surgical device. In some embodiments, the adaptor is configured with an external diameter less than or equal to the internal diameter of the tubular surgical device.

Abstract: An intravenous cuff assembly includes a cuff that is wearable around a user's arm to cover an injection site of an intravenous needle. The cuff is comprised of a resiliently stretchable material to compress against the intravenous needle thereby inhibiting movement of the intravenous needle. A plurality of first mating members and a plurality of second mating members is each coupled to the cuff. Each of the second mating members is releasably matable to a respective one of the first mating members for adjusting dimensions of the cuff. A plurality of third mating members and a plurality of fourth mating members is each coupled to the cuff. Each of the fourth mating members is releasably matable to a respective one of the third mating members for adjusting dimensions of the cuff.

Abstract: A method may include priming a catheter system. The catheter system may include a catheter adapter, a catheter, and an extension tube. The catheter system may also include a Y-adapter, which may include first and second arms. A distal end of the Y-adapter may be coupled to the extension tube. The catheter system may further include a vent cap, which may be coupled to the second arm. Priming the catheter system may include attaching an IV line to the first arm and delivering saline through the IV line to the catheter system such that the saline exits a distal tip of the catheter and clamping the IV line via a roller clamp on the IV line. The method may also include actuating the vent cap after priming the catheter system. The method may further include inserting the catheter into a vein of a patient after actuating the vent cap.

Abstract: In some examples, a catheter includes one or more balloons positioned between an inner wall and an outer wall of an elongated body of the catheter. The one or more balloons are configured to expand through one or more inner wall openings defined by the inner wall and into an inner lumen of the catheter, as well as through one or more outer wall openings defined by the outer wall, e.g., to extend radially away from an outer surface of the outer wall of the catheter. In some examples, the one or more balloons are configured to expand radially inward through the one or more inner wall openings and into the inner lumen of the catheter to contact (e.g., directly contact) a guidewire positioned within the inner lumen.

Abstract: In some examples, a catheter flaring device includes a housing and a pin. The housing includes an interior surface defining a cavity configured to receive at least a portion of a catheter having an entry port and engage an exterior surface of the catheter proximate the entry port. The pin is configured to be advanced into the entry port of the catheter to increase a cross-sectional dimension of the entry port. Flaring the entry port may help reduce catching of a medical device on the entry port of the catheter during a medical procedure.

Abstract: An intravascular blood pump may have a catheter (10) and a pumping device (1) attached to the catheter (10). The catheter (10) extends along a longitudinal axis and has a distal end (11) and a proximal end (12) opposite the distal end (11). The catheter (10) may have a tubular stiffening structure (15) extending longitudinally between the proximal end (12) and the distal end (11) of the catheter (10). The tubular stiffening structure (15) has a lumen (21) and a proximal end (17) and a closed distal end (16) opposite the proximal end (17), wherein the lumen (21) of the stiffening structure (15) is configured to receive a pressurized fluid having an over-pressure of at least 5 bar.

Abstract: An insertion device configured to implant a first medical device and a second medical device in a user. The first medical device may be a fluid delivery cannula configured to deliver a fluid (e.g., insulin) to the user. The second medical device may be an analyte sensor (e.g., a glucose sensor) configured to detect a physiological characteristic of the user (e.g., a glucose level). The insertion device may be configured to be worn by the user. The insertion device includes a first linkage assembly configured to extend and retract a first insertion needle to implant the first medical device and a second linkage assembly configured to extend and retract a second insertion needle to implant the second medical device. The insertion device includes a user input device configured to cause the insertion device to initiate the implantation when activated by the user.