An invasive medical device (10) is disclosed comprising a flexible sheath (11) enveloping at least one lumen (17, 17) comprising an electrically conductive wire (20) including a deformable actuator (21) for deforming a section of the invasive medical device in response to an electric current provided through the electrically conductive wire, wherein the flexible sheath comprises a set of apertures (31) extending through the flexible sheath to the at least one lumen, said apertures being filled with an adhesive (33) anchoring the deformable actuator to the flexible sheath. A manufacturing method for such an invasive medical device (10) is also disclosed.

A method and a device for forming holes (17a, 17b) through a lateral wall of a catheter are disclosed. The method comprises the steps of providing a section of the catheter between a pair of tubular punching members 6, driving at least one of said pair of tubular punching members towards the other in order to punch through said lateral wall 23 of the catheter and thereby sever one pair of oppositely located hole pieces from the lateral wall, actuating an ejection unit 7, in order to force said severed hole pieces away from the catheter via said internal lumen of the tubular punching members, withdrawing said pair of tubular punching members. A catheter 2 produced is also disclosed.

A peripheral catheter having a catheter tip diffuser for reducing an exit velocity of an infusant within the catheter. Pluralities of diffusion side holes are provided on the tip portion of the catheter. Some examples further include pluralities of annularly arranged, staggered diffusion holes provided on the tip portion of an intravenous catheter to streamline infusant issued from the diffusion holes. An inner surface of each diffusion hole is further angled relative to the inner surface of the catheter lumen such that an infusant within the lumen exits the catheter though the diffusion holes at an angle less than 90.

A balloon catheter includes a one-piece extrusion having inner and outer tubular walls, where the inner tubular wall defines a wire guide lumen, and a clearance extending between the inner and outer tubular walls forms an inflation lumen. A balloon is attached to the outer tubular wall and to the inner tubular wall, such that the inflation lumen is in fluid communication with the balloon and the wire guide lumen extends through the balloon. A method of making the balloon catheter is also disclosed.

A bi-directional valve assembly, including valves for use in closed-ended catheters or other elongate tubular devices, is disclosed. In one embodiment, a catheter assembly for insertion into a body of a patient is disclosed and comprises an elongate catheter tube including an outer wall that at least partially defines at least one lumen that extends between a proximal end and a closed distal end thereof. The catheter tube includes a valve assembly that in turn includes a linear slit valve defined through the outer wall of a distal segment of the catheter tube, and a deformation region. The deformation region includes a compliant segment disposed in the outer wall of the catheter tube and a thinned portion of the outer wall. The compliant segment and thinned portion of the deformation region cooperate to preferentially deform the outer wall and open the slit valve during aspiration through the catheter tube.

A catheter system may include a catheter adapter, which may include a distal end and a proximal end. The catheter system may include a catheter, which may include a distal end, a proximal end, a catheter lumen extending through the distal end of the catheter and the proximal end of the catheter, and an inner surface forming the catheter lumen. The catheter may extend distally from the distal end of the catheter adapter. The distal end of the catheter may include one or more holes. The distal end of the catheter may include one or more channels. The holes and/or the channels may facilitate visualization of blood flashback indicating the catheter is disposed within a vein of a patient.

A drug delivery device includes a blunt cannula and a reservoir. The blunt cannula has a cylindrical wall that defines an axial passage between a first end and a second end of the blunt cannula. The wall has at least a first tapered region at the first end to define an opening in fluid communication with the axial passage and adapted at the first end to resist interruption of fluid flow through the axial passage and out of the first end of the blunt cannula. The reservoir is connected to the second end of the blunt cannula.

A drug delivery device includes a blunt cannula and a reservoir. The blunt cannula has a cylindrical wall that defines an axial passage between a first end and a second end of the blunt cannula. The wall has at least a first tapered region at the first end to define an opening in fluid communication with the axial passage and adapted at the first end to resist interruption of fluid flow through the axial passage and out of the first end of the blunt cannula. The reservoir is connected to the second end of the blunt cannula.

A catheter and a manufacturing method thereof are disclosed, which can restrain a guide wire lumen and a dilation lumen from communicating with each other during thermal fusion-bonding while suppressing an increase in an outer diameter of a catheter shaft. A catheter has a catheter shaft in which a distal side shaft, an inner tube shaft, and a proximal side shaft are integrated with each other in a fusion region. The inner tube shaft has an opening portion which, opens outward and an arc-shaped portion which extends from the opening portion to a proximal side and which has only a portion of an entire circumference in a circumferential direction of the inner tube shaft. The fusion region includes the opening portion located on a distal side of a proximal end of the distal side shaft.

An infusion catheter system may deliver a therapeutic agent to a desired location in the body. The system may include an elongate catheter shaft having a proximal end region, a distal end region, a distal opening, and a lumen extending between the proximal end region and distal opening. The distal end region may include a coiled portion having a preformed coiled configuration including a plurality of helically wound rings. A plurality of apertures may be formed through a sidewall of the coiled portion. A guidewire may be configured to be slidably disposed within the lumen of the catheter shaft. The guidewire may include a proximal end region having a first cross-sectional dimension, an enlarged distal end region having a second cross sectional dimension greater than the first cross-sectional dimension, and an intermediate region disposed between the proximal end region and the distal end region.