Provided is a medical tubular body delivering device that is less likely to kink without reducing operability. The device has an outer tube through which the medical tubular body is disposed; a guidewire insertion member provided proximal to the medical tubular body; and an inner insertion member provided in the outer tube, and the guidewire insertion member has a penetration passage; a guidewire tube is provided in the penetration passage; the inner insertion member is partially fixed to the guidewire insertion member; a protection member is provided outside a part of the inner insertion member proximal to a fixing portion; the protection member has a reduced-area section where the protection member has a cross-sectional area in a cross-section perpendicular to an axis direction decreases towards a distal end; and the protection member in the reduced-area section is biasedly located against the guidewire tube with respect to the inner insertion member.

Devices and methods for the treatment of chronic total occlusions are provided. One disclosed embodiment comprises a method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein. The method includes inserting an intramural crossing device into the vascular lumen, positioning at least the distal tip of the crossing device in the vascular wall, advancing an orienting device over the crossing device such that an orienting element of the orienting device resides in the vascular wall, inserting a reentry device, and re-entering the true vascular lumen.

The present disclosure relates to a hemodialysis catheter that can monitor intravascular pressure using a MEMS sensor. The hemodialysis catheter comprises a venous lumen, an atrial lumen, and at least one MEMS system sensor. The hemodialysis catheter also comprises a data acquisition and processing system. The hemodialysis catheter can communicate with a monitor system to display pressure data.

Reinforced catheter tips, catheters including rapidly insertable central catheters (“RICCs”), and methods thereof reduce the number of steps and medical devices involved in introducing catheters into patients. In an example of a catheter, a RICC can include a catheter tube, a catheter hub coupled to a proximal portion of the catheter tube, and a plurality of extension legs extending from the catheter hub. The catheter tube can include a first section in a distal portion of the catheter tube and a second section proximal of the first section. The first section of the catheter tube can distally terminate with a catheter tip reinforced with a reinforcement band therein. The plurality of extension legs that extend from the catheter hub can be equal in number to a plurality of lumens extending through the RICC. In another example, a method can include a method of making the foregoing RICC.

An elongated access device used in a medical system. The elongated access device slidably receives a medical tool and an ultrasound probe. The elongated access device includes a sheath and an intraluminal tip attached to the distal end of the sheath. The intraluminal tip includes ramp and nose donuts being spaced apart from one another and configured to be attached to one or more elongated sleeves. One or more orientation pins are engaged with the respective ramp and nose donuts and may be anchored within the sheath. The medical tool is engaged with a ramp formed in the ramp donut or a ramp received within the ramp donut. The ultrasound probe is configured to engage with the intraluminal tip so as to ensure that the medical tool directionality is oriented toward a target during a procedure.

Embodiments of the present disclosure include a device for passing a guidewire around an anatomical structure within a body, comprising a catheter including an elongated tube having at least a first lumen and a second lumen, a guidewire configured to pass through the first lumen of the catheter, and a snare configured to pass through the second lumen of the catheter. A first exit of one of the first lumen and the second lumen may be positioned at or near a distal tip of the catheter, and a second exit of another of the first lumen and the second lumen may be positioned on a side of the catheter at a distance proximal to the distal tip of the catheter. A portion of the catheter distal to the second exit may be configured to bend around at least a portion of the anatomical structure of interest within the body.

A catheter comprising an elongated body (12) defining one or more lumens (40,42), and the elongated body comprises a sidewall defining a side opening (14) in fluid communication with a lumen of the one or more lumens. The side opening has a proximal end (14A), a distal end (14B), a first side (34) extending from the proximal end to the distal end, and a second side (36) opposing the first side and extending from the proximal end to the distal end. When the elongated body is straight, the first and second sides curve towards each other between the proximal and distal ends, e.g., to define a biconcave shape.

A cannula apparatus (100) and method are provided for selective fluid flow in removal and return directions. An outer sheath (102) has proximal (104) and distal (106) outer sheath ends spaced apart by a longitudinal outer sheath body (108) defining an outer sheath lumen (110). At least one fluid removal aperture (112) extends through the outer sheath body. The outer sheath includes a side access aperture (114). An introducer (1534) has proximal (1536) and distal (1538) introducer ends spaced apart by a longitudinal introducer body (1540), which at least partially defines a guidewire channel (1542) longitudinally therealong. The introducer is configured for insertion into the outer sheath lumen with the guidewire channel in fluid communication with the side access aperture. An inner tube (218) has proximal (220) and distal (222) inner tube ends. At least one fluid return aperture (228) is located at least one of at and adjacent the distal inner tube end to place an inner tube lumen in fluid communication with an ambient space.

A catheter having a shaft including a first lumen that communicates from the proximal end to the distal end of the shaft, and a second lumen that is positioned on the outer periphery side of the first lumen, communicates from the proximal end side to the distal end side of the shaft, and has a smaller opening area than the opening area of the first lumen in a transverse section of the shaft. The dimension in the first direction in the distal end portion of the shaft where the first lumen and the second lumen are aligned is less than or equal to the dimension in the first direction in the proximal end portion that is closer to the proximal end side than the distal end portion of the shaft.

Medical devices and methods for making and using medical devices are disclosed. An example medical device may include an elongate shaft having a proximal end region and a distal end region. A first lumen may be defined in the shaft. A second lumen may be defined in the shaft. The distal end region may include a common lumen region in fluid communication with the first lumen and the second lumen. A deflectable member may be disposed within the shaft. The deflectable member may be designed to shift between a first configuration where the deflectable member directs a first medical device disposed within the common lumen region into the first lumen and a second configuration where the deflectable member allows a second medical device to move between the common lumen region and the second lumen.