Abstract: Methods, systems and devices for applying energy to tissue, and more particularly relates to a system for ablating or modifying structures in a body with systems and methods that generate a flow of vapor at a controlled flow rate for applying energy to the body structure.

Abstract: A magnetic stimulation system may include first and second subsystems. The first subsystem may include a first stimulator, a first coil, and a first processor configured to determine stimulation parameter data for a subject. The second subsystem may include a second stimulator, a headpiece including an identifier and a second coil mounted to a headpiece body at a fixed location, an image recording device, and a second processor configured to: receive first image data for one or more first images of the subject and headpiece; receive, from the image recording device, second image data for one or more second images of the subject and headpiece; determine, using the first and second image data, that the stimulation parameter data corresponds to the subject; determine, using the second image data, that the headpiece corresponds to the subject; and determine, using the second image data, that the headpiece is at a pre-determined position.

Abstract: A system and method may be used to position or orient a camera within a surgical field. A method may include generating a graphical user interface including a first set of instructions to reposition the camera, and determining whether the camera is within a target volume location. The method may include automatically outputting an indication when the camera is within the target volume location. The method may include outputting a second set of instructions for display on the graphical user interface to align a laser, coupled to or integrated into the camera, to the tracker by changing an angle of the camera.

Abstract: A digital topographic model of the luminal surface is generated by projecting an optical pattern on the luminal surface from the first location within the lumen. At least a portion of the projected pattern is detected from a second location within the lumen which is based apart from the first location. The dimensions of the luminal wall can be measured by triangulation in order to produce the digital topographic model of the body lumen.

Abstract: A hemostasis valve, a catheter sheath, and a method for sealing an interventional instrument (9), the hemostasis valve comprising a housing (1,100) and a sealing film (2,130) which is installed within the housing (1,100) and which is a tubular structure; an inner cavity (21) of the tubular structure serves as an instrument channel (11,131) and penetrates the housing (1,100); driving chambers (12,150) which are located on the periphery of the sealing film (2,130) and which are used for being filled with a fluid are provided within the housing (1,100); the hemostasis valve further comprises an energy storage mechanism (3) that can link with the fluid; the energy storage mechanism (3) correspondingly stores or releases energy when the state of the sealing film (2,130) changes; and the sealing film (2,130) is driven to seal the instrument channel (11,131) during energy release.

Abstract: A venous valve replacement device includes a stent with a blood flow channel and two leaflets connected to the stent, wherein one side of each leaflet is configured as a fixed edge connected with the stent, and the other side is configured as a movable edge, and wherein the movable edges of the two leaflets cooperates with each other to open or close the blood flow channel, and the movable edges of the two leaflets are provided with flaps that attach to each other in a closed configuration.

Abstract: An instrument and method for tissue thermotherapy including an inductive heating means to generate a vapor phase media that is used for interstitial, intraluminal, intracavity or topical tissue treatment. In one method, the vapor phase media is propagated from a probe outlet to provide a controlled vapor-to-liquid phase change in an interface with tissue to thereby apply ablative thermal energy delivery.

Abstract: Disclosed is a composite skirt for a prosthetic heart valve. A stent includes an inflow segment, a transition segment and an outflow segment; the composite skirt includes at least two of: (1) a first skirt disposed at the inflow segment, (2) a second skirt disposed at the transition segment, and (3) a third skirt disposed at the outflow segment, wherein for the composite skirt, different skirt parameters are configured according different arrangement regions to adapt to primary tissues and reduce regurgitation. A prosthetic heart valve is further disclosed. For the composite skirt of this invention, in view of different functions in different regions of the valve, the skirt parameters of different regions are set such that the skirt is matched with a structure of the stent, thereby improving the functions of the prosthetic heart valve.

Abstract: A medical introducer includes an elongated tubular member having a proximal end, a distal portion, and a central lumen extending from the proximal end to a distal port in the distal portion. A frame structure is coupled to the distal portion of the elongated tubular member, where frame structure supports the distal portion of the elongated tubular member in a tapered shape and alternatively in a non-tapered shape. The elongated tubular member may include a rigid outer tube and a rigid inner tube carried in an interior lumen of the outer tube. The distal portion is typically a reinforced elastomeric tubular extension of the outer tube, and the reinforced elastomeric tubular extension may have a conical shape.

Abstract: A stent device with skirt folds and a processing method thereof, a skirt folding method, and a heart valve. The stent device comprises a stent (1, 10) and a flexible skirt (2, 107), the skirt (2, 107) having an expanded state, in which the skirt is axially extended and surrounds the stent (1, 105) before release thereof, and a folded state, in which the skirt is driven by the deformation caused when the stent (1, 105) is released, collapses and folds axially along the released stent (1, 105) so as to form an annular peripheral leakage-blocking portion. The peripheral leakage prevention technology enables an interventional stent to fit to the inner wall of a vessel more snugly, such that the stent does not easily move and is more stable, thereby being suitable for more people, reducing additional risks of surgery and preventing complications such as peripheral leakage and thrombus.

Abstract: Disclosed are a stent delivery and release device and a stent delivery and release system. The stent delivery and release device (20) includes a stent proximal end release assembly provided at a proximal end of the stent delivery and release device, a guide head provided at a distal end of the stent delivery and release device, and a control member, wherein an external stent is configured to be loaded between the guide head and the stent proximal end release assembly; a proximal end of the control member is connected to the stent proximal end release assembly, and at least part of a distal end of the control member is wound around the stent and is detachably connected to the guide head; and the stent proximal end release assembly folds or releases the stent by controlling the axial length of the control member.

Abstract: Methods, systems and devices for applying energy to tissue, and more particularly relates to a system for ablating or modifying structures in a body with systems and methods that generate a flow of vapor at a controlled flow rate for applying energy to the body structure.

Abstract: The present invention provides a method for treating diabetes, a diabetes-associated condition or disorder, or symptoms thereof suffered by a subject such as a mammal (e.g. a human patient or a pet), comprising (1) placing multiple electrodes within at least one renal artery of the subject and against blood vessel wall of the at least one renal artery; (2) adhering a surface electrode on an external surface such as skin of the subject; and (3) releasing a therapeutically effective amount of radiofrequency energy through at least one of the multiple electrodes to nearby tissues, so as to increase the temperature of the nearby tissues and induce a thermal alteration of the nearby tissues.

Abstract: A neutron capture therapy system includes an accelerator for generating a charged particle beam, a neutron generator for generating a neutron beam having neutrons after irradiation by the charged particle beam, and a beam shaping assembly for shaping the neutron beam. The beam shaping assembly includes a moderator and a reflecting assembly surrounding the moderator. The neutron generator generates the neutrons after irradiation by the charged particle beam. The moderator moderates the neutrons generated by the neutron generator to a preset energy spectrum. The reflecting assembly includes a plurality of reflectors configured to guide deflected neutrons back to the neutron beam and a supporting member to support the plurality of reflectors. A lead-antimony alloy is for the reflecting assembly to mitigate a creep effect that occurs when only a lead material is for the plurality of reflectors, thereby improving the structural strength of a beam shaping assembly.

Abstract: A tricuspid valve prosthesis includes a stent body implanted at a tricuspid valve annulus for supporting a prosthetic valve leaflet, and an anchoring structure disposed above the stent body for anchoring the stent body at a native valve annulus for preventing the stent body from displacing, wherein the anchoring structure is configured to be partially attached to a fossa ovalis of an interatrial septum to form a retention force by being attached to the fossa ovalis so that an anchoring effect on the valve prosthesis is achieved.

Abstract: A prosthetic heart valve includes a stent body for supporting prosthetic valve leaflets and an anchoring frame for anchoring the stent body to annulus. The anchoring frame is configured at a pre-set position located close to an outflow tract, the stent body is configured on an outer side of the anchoring frame and at a pre-set position located far away from the outflow tract, and the anchoring frame abuts against and is connected to the stent body.

Abstract: A medical device with a capacitive sensing function includes a medical body having a syringe and a sensing circuit having an electrode, a protective film adhered to the medical body and including a plastic film, an electrode provided on the plastic film and opposite from the electrode of the medical body, and a capacitive sensor formed by the electrode of the medical body and the electrode of the protective film and being a part of the sensing circuit, wherein a capacitance value of the capacitive sensor changed under the condition of removing the protective film from the medical body, the sensing circuit being configured to detect the capacitance value and trigger corresponding function of the medical body.

Abstract: A tissue resecting or other medical device includes a handle coupled to an elongated shaft. A radiofrequency (RF) electrode is carried at a distal end of the elongated shaft, and the electrode is moveable across a window in a sleeve or other component of the shaft. The shaft has an interior channel connectable to a negative pressure source to remove debris from the channel. A motor is carried by the handle and operatively coupled to the electrode for moving the electrode relative to the window. An electronic image sensor and lens are disposed at a distal end of the shaft, and a plurality of conductors may extend through the shaft to the image sensor. The image sensor, lens and sensor conductors are disposed within a first tubular member, and an LED or other light source is also positioned at a distal end of the shaft with LED conductors or leads extending through a second tubular member of the shaft to the LED.

Abstract: Disclosed are an improved leaflet of a cardiac valve, and a cardiac valve preform, a cardiac valve, and a processing method therefor. The improved leaflet of a cardiac valve comprises a leaflet body (1), wherein the leaflet body (1), in a height direction, is provided with a movable edge (12) on the top side and a fixed edge (11) on the bottom side, and the movable edge (12) and the fixed edge (11) extend in the width direction of the leaflet body (1) and are connected to connecting ears (10) on respective sides. Each of the connecting ears (10) comprises a pulling portion (2), the pulling portion (2) extending in the height direction and crossing the movable edge (12), wherein the movable edge (12) extends and intersects with the inner side of the pulling portion (2), and the fixed edge (11) extends and intersects with the outer side of the pulling portion (2).

Abstract: The present invention relates to a device (3) intended to be attached to or interconnected with a medical implant (1), and intended to be attached to or interconnected with a catheter (5), the catheter (5) being intended for implanting the implant (1). The invention further relates to a catheter (5) suited for receiving at least one such device (3) and to a method.