Medical devices and methods for using medical devices are disclosed. An access device for accessing a target site comprises a tubular member having a proximal portion and a distal portion. The access device may also include a balloon coupled to the tubular member, the balloon extending between the tubular member proximal portion and the tubular member distal portion. The access device may also include a stylet moveable with respect to the tubular member, wherein the stylet is configured to pierce through the skin of a patient.

Percutaneous access device

An object of the present invention is to provide a varicose vein surgery kit capable of effectively treating varicose veins by a combination of a catheter injecting a drug and a radiation optical fiber emitting a laser. The present invention comprises: a catheter (10) having a lumen (11) formed therein and having a catheter tip (12) at one end thereof and first and second ports (14, 16) at the other end thereof; a radiation optical fiber (20) having a radial tip (22) inserted into the lumen (11) through the first port (14), connected to a laser generator (21), and outputting a laser in a 360° direction at the end thereof; and a drug passage (30) formed between the outer diameter of the radiation optical fiber (20) and the inner diameter of the lumen (11) and communicated with the second port (16) to supply a vasoocclusion drug through a syringe part (32). When using the varicose vein surgery kit, by the combination of a catheter injecting a drug and a radiation optical fiber emitting a laser in the 360° direction, the use of drugs is minimized, and the treatment area for varicose veins is expanded without side effects by using a low-power laser, and the operation time is shortened. In particular, the kit can be universally applied to blood vessels of various sizes with a simple method of adjusting the laser output.

Varicose vein surgery kit and surgical method using the same

A balloon arrangement that includes a balloon layer having a base layer formed of polymer material and a cage independent from the balloon layer. The cage is braided. Additionally, a method for treating tissue includes inserting a balloon arrangement into a subject having the tissue, pressurizing the balloon arrangement so as to expand a diameter of the balloon layer and/or the braided cage, removing and/or moving the tissue and retracting the balloon arrangement.

Medical balloon with reinforcement structure

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Medical balloon with reinforcement structure