Embodiments herein are generally directed to surgical retractor systems. In some embodiments, these retractor systems may be used in spinal fusion or other procedures that utilize a transforaminal approach.

A system of devices for treating an artery includes an arterial access sheath adapted to introduce an interventional catheter into an artery and an elongated dilator positionable within the internal lumen of the sheath body. The system also includes a catheter formed of an elongated catheter body sized and shaped to be introduced via a carotid artery access site into a common carotid artery through the internal lumen of the arterial access sheath. The catheter has an overall length and a distal most section length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use.

A device for surgery that accommodates multiple different implements. The implements may be exchanged or changed out for one another over the course of a surgery in a manner that does not require disengagement of the device from a surgical site. As a result, the need to re-insert the device into the patient and other hazards associated with multiple trips into the surgical site may be minimized. In one embodiment, the device includes cannula architecture to avoid use of a separate cannula at the surgical site.

In accordance with some configurations, systems and methods for guided removal from an in vivo subject are provided. In some configurations, a method for removing an object is provided. The method comprising, guiding a flexible tube through an in vivo subject's ureter, wherein the flexible tube comprises at least a first passageway and a second passageway. Positioning a distal end of the first passageway adjacent to the object. Infusing saline solution through the second passageway while suction is off. Removing the object through the first passageway with at least a portion of the saline solution.

A myringotomy device includes a housing; an elongated tube extending from the housing; and a retractable cutting tool extendable through the elongated tube, the cutting tool comprising a blade. The cutting tool is configured such that when advanced, the blade of the cutting tool extends beyond a distal end of the elongated tube. The cutting tool is also configured such that when retracted, the blade is retracted into the elongated tube and a fluid conduit is created from the distal end of the elongated tube to the housing.

A catheter assembly includes a catheter comprising a flexible elongated member including a distal portion that includes a tubular body defining an inner lumen and a plurality of body apertures that extend through a sidewall of the tubular body into the inner lumen, and a plurality of primary electrodes positioned along the tubular body. The catheter assembly includes a wire defining at least one secondary electrode, the wire being configured to be slidably moved through the inner lumen of the tubular body, where the wire and the plurality of primary electrodes are configured to electrically couple to an energy source that delivers an electrical pulse to a fluid in contact with the plurality of primary electrodes and the at least one secondary electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.

Devices, systems, and methods are provided for breaking a kidney stone(s) into smaller particles, fragments, and/or stone dust; and removing the same from a patient. The medical device may include a tube having a distal end, a proximal end, a port located proximal of the distal end, and a length of the tube extending between the proximal end and the distal end. A first portion of the tube may be proximal of the port and have a first cross-sectional area, while a second portion of the tube may be distal of the port and have a second cross-sectional area smaller than the first cross-sectional area. A first lumen may extend from the proximal end to the distal end of the tube. A second lumen may in communication with the port to fluidly connect the proximal end of the tube with the port.

A device for removing a thrombus from a retinal vessel has a grip held by the user of the device, a tubular portion to be inserted into the eye, the tubular portion being provided at an end of the grip, a microtube to be inserted into a retinal vessel, the microtube being provided at an end of the tubular portion, a linear pusher axially slidably held in the microtube and the tubular portion, and an operating portion provided at the grip. The linear pusher is adapted to protrude to a desired position from an end of the microtube by axially sliding the linear pusher by means of the operating portion, thereby the linear pusher physically pushes a thrombus out of the retinal vessel.

To provide a basket-type treatment instrument for an endoscope such that wires constituting a basket are not liable to be damaged. A basket-type treatment instrument 1 for an endoscope having a basket part 40 formed such that a plurality of basket wires 41, 42 elastically expand or contract radially, wherein folded-back parts 41a, 42a formed by folding back substantially center portions of the basket wires 41, 42 are hooked to a substantially cylindrical first rib 6b fixed in a perpendicular direction to the cylinder axis of a distal tip 6, whereby the distal tip 6 retains the distal sides of the basket wires 41, 42 together.

A dilator assembly comprising an elongated body having a proximal end and a distal end, a first lumen extending along the body, a second lumen extending along the body so that it is a parallel to the first lumen, and a joint lumen disposed adjacent the distal end of the body, wherein both the first lumen and second lumen are in fluid communication with the joint lumen. A guidewire has a first end and a second end, and the first end of the guidewire is slidably received in the first lumen and the second end of the guidewire is slidably received in the second lumen.