Extraction devices for extracting chronically implanted devices such as leadless cardiac pacemakers (LCP). In some cases, the extraction devices may be configured to cut or tear through at least some of the tissue ingrowth around and/or over the chronically implanted device such that a retrieval feature on the chronically implanted device may be grasped for removal of the chronically implanted device.

Extraction devices for extracting chronically implanted devices such as leadless cardiac pacemakers (LCP). In some cases, the extraction devices may be configured to cut, tear or ablate through at least some of the tissue ingrowth around and/or over the chronically implanted device such that a retrieval feature on the chronically implanted device may be grasped for removal of the chronically implanted device. Implantable medical devices such as LCPs may include features that facilitate their removal.

An instrument and technique for the removal of epidermal layers in a controlled manner utilizing a hand-held instrument with a working end that (i) a vacuum aspiration system, (ii) a source for delivery of a sterile fluids or pharmacological agents to the skin; and (iii) a skin interface surface in the working end that has specially shape structure for abrading surface layers of the patient's epidermis as the working end is moved over the patient's skin while at the same time causing rapid penetration of the fluids into the skin for therapeutic purposes. Movement of the working end across the skin causes abrasion of the surface layers in a path over the patient's skin.

A uterine fibroid tissue removal device includes an inner tube disposed within an outer tube and configured to be translated and rotated relative to the outer tube, and a separately formed unitary distal tip member attached to a distal end of the inner tube, such that the distal tip member translates and rotates relative to the outer tube along with the inner tube, wherein a distal facing open cutting end of the distal tip member in fluid communication with an axial lumen of the distal tip member translates across a tissue resection window in a sidewall of the outer tube so as to sever tissue extending therethrough, the distal tip member axial lumen being in fluid communication with an axial lumen of the inner tube, wherein an outer diameter of the distal tip member is greater than an outer diameter of the inner tube.

A medical device is disclosed for cutting an object in a body lumen, including: a rotation structure which includes a cutting portion; a first shaft which is connected to a center shaft of the rotation structure and drives the rotation of the rotation structure; and a second shaft which is formed in a tubular shape surrounding the first shaft, wherein the second shaft is bendable at two positions including a first curved portion and a second curved portion located more distal than the first curved portion, and the second shaft is rotatable in a state in which a proximal side of the first curved portion and a distal side of the second curved portion of the second shaft are kept substantially parallel to each other.

A medical device for removing a stenosis of a living body lumen includes a drive shaft configured to be driven by an operation at a proximal side thereof and including a treatment member disposed at a distal side thereof, a housing configured to accommodate the proximal side of the drive shaft therein, and a holding member configured to suppress unnecessary movement of the drive shaft. A proximal end of the holding member is fixed to the housing, and an inner surface of the holding member and an outer surface of the drive shaft are slidable relative to one another.

A rotational atherectomy device for removing a stenotic tissue from the iliac artery of a patient. The device comprises a flexible, rotatable drive shaft having an elongated proximal portion, an elongated distal portion. An abrasive element is mounted to the drive shaft between the elongated proximal and distal portions of the drive shaft and between and spaced away from a pair of counterweights which are mounted to said elongated portions of the drive shaft. The eccentric abrasive element and the counterweights are configured for rapid rotation together with the drive shaft, the drive shaft is configured to extend throughout an entire length of the iliac artery to be treated. One elongated portion of the drive shaft extends out of the patient through a first access opening located in a femoral artery which is ipsilateral to the treated artery. Another elongated portion of the drive shaft extending through a second access opening located in another peripheral artery of the patient. A method of treating an iliac artery of a patient using such a rotational atherectomy device.

An atherectomy system that utilizes an anchoring balloon with a rotary debulker and a crossing balloon to remove or debulk lesions formed on the interior wall surface of a body vessel. The system may include a first balloon coupled to a first tubular member, a rotary debulker coupled to a second tubular member, a second balloon coupled to both the third tubular member and the axially moveable fourth tubular member such that the second balloon is disposed inside the third tubular member. Methods for operating this device are also provided.

An atherectomy device for removing deposits such as plaque from an interior of a vessel including an outer member and a rotatable shaft positioned for rotational movement within the outer member. The outer member is fixed axially. A rotatable tip is mounted to the distal region of the rotatable shaft for rotation about its longitudinal axis upon rotation of the shaft. The rotatable shaft includes a guidewire lumen for receiving a guidewire to enable over the wire insertion of the device.

The present invention provides a novel microdermabrasion system that provides safe and effective treatment for skin conditions such as acne, aging and sallow skin, fine wrinkles, surface skin scars, and other visually unappealing cosmetic skin disfigurements. This new invention provides a universal attachment and air flow/suction regulator which permits micro diamond chip based, crystal free microdermabrasion using a variety of standard vacuums and home based cleaning vacuums. Whereas currently available microdermabrasion devices have required a dedicated internal built in vacuum, this new invention allows the use of the universal attachment to most types of vacuums.