Abstract: A method of reshaping a severely stenosed aortic valve having leaflets with bicuspid malformation and severe calcification. The method includes delivering a balloon with an expandable distal end to the aortic valve, expanding the balloon so that the distal end of the balloon is expanded to push the leaflets upward from bottom of the aortic valve to reshape the leaflets, and forming a space compliant to a self-expandable interventional valve for release, thereby facilitating the following TAVR procedure, reducing the adverse consequences of the TAVR procedure, and improving the surgical stability and the surgical prognosis.

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: An electrosurgical instrument (20, 120, 220, 420, 620, 720) is provided for excising a segment of a heart valve leaflet, the electrosurgical instrument including a delivery shaft (26, 426) supporting a first jaw (24A, 124A, 224A, 424A, 624A) and a second jaw (24B, 124B, 224B, 424B, 624B), which together are configured to assume (i) an open position, in which the first and the second jaws are spaced apart to allow insertion of a portion of the leaflet therebetween, and (ii) a closed position, in which the first and the second jaws sandwich the inserted leaflet portion. The electrosurgical instrument (20, 120, 220, 420, 620, 720) also includes first and second electrically insulated wire portions (34A, 734A, 34B, 734B) and, longitudinally therebetween, an electrically exposed cutting portion (36, 736).

Abstract: This disclosure describes an intelligent management and retrieval system for surgery videos. The system allows user to upload their surgery videos and provide description of the surgery. A trained machine learning model detects whether there are any privacy leaking segments or frames inside the user uploaded video, and the system removes such privacy information from the video. Medical devices, tissue characteristics and events are detected in the surgery video using trained object recognition, event recognition models. Such detection result, combined with user provided description of the surgery, are utilized to construct rich description of the surgery video.

Abstract: A transmission device includes a base body and a plurality of driving modules disposed in the base body. Each driving module includes a first transmission set, a linking member, a second transmission set, a third transmission set, a gear set, and a driving motor. The first transmission set includes a slide rail and a slide block. The slide block is fixed on the base body. The linking member is fixed on the slide rail and has a slide shaft. The second transmission set includes a screw rod and a nut, and the nut is fixed on the slide rail. The third transmission set includes a worm rod and a worm gear meshed with the worm rod. The gear set is connected to the worm rod. The driving motor has a driving shaft connected to the gear set.

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 portable minimally invasive surgical mechanical arm with multi-degree of freedom comprises a handle joint assembly which is used for movably mounting an axle part, and the assembly comprises a first axis and second axis allowing the axle part to rotate around the first axis and the second axis respectively. The first axis coincides with the axis of the axle part, and the second axis is perpendicular to a shaft. A controlling mechanism and a controlling wire joint assembly are used for transmitting the motion of the grip part to the controlling wire joint assembly. The controlling mechanism comprises an input piece, two push rods and an output piece, and the two push rods. The input piece receives the output motion of the axle part, and the output piece is part of the controlling wire joint.

Abstract: A prosthetic valve delivery catheter and device. The delivery catheter includes an outer sheath assembly and an inner sheath assembly. The outer sheath assembly includes a capsule in which a prosthetic valve can be received and an outer sheath fixedly connected at one end to the capsule. The inner sheath assembly includes an inner sheath and an anchor fixedly connected to the inner sheath. The inner sheath assembly is arranged within a lumen of the outer sheath assembly, and the capsule and the anchor form a circumferentially indexed fit therebetween. With this design, the anchor and the capsule can be driven to rotate under the action of circumferential rotation of the inner sheath, thus the matching between the prosthetic valve and a native valve annulus can be adjusted. Moreover, the capsule can be driven to move axially under actuation of the outer sheath to allow release of the prosthetic valve.

Abstract: An electrophysiological catheter and an ablation system comprising a control device, an ablation energy output device and the electrophysiological catheter. The control device controls the ablation energy output device to selectively provide a first fluid or a second fluid that is a frozen liquid to the electrophysiological catheter. When the ablation energy output device provides the first fluid, the control device controls a first heating component on the electrophysiological catheter to work to heat the fluid entering the electrophysiological catheter for spraying a thermal ablation gas onto the inner surface of a balloon; and when the ablation energy output device provides frozen liquid, the control device controls the first heating component not to work to directly spray the frozen liquid to the inner surface of the balloon.

Abstract: A catheter handle for a steerable catheter. A catheter tube is connected to the catheter handle. A steering wire has a center point and two legs, the center point is affixed to a distal tip of the catheter tube, and each of the two legs of the steering wire is affixed to a respective rack of a pair of racks inside the catheter handle. Each of the racks of the pair of racks is toothed and slidable and the racks are mounted in opposition to each other within the catheter handle. A first gear is disposed between the racks and a gear train is positioned to engage the first gear. The gear train is sized to provide a transmission gain to the first gear. A knob is attached to the gear train and operating the knob rotates the gear train to engage the first gear and causes the racks to slide in opposite directions thereby pulling one of the two legs to deflect a distal end of the catheter tube.

Abstract: Provided are tissue repair and sealing devices, and methods for the use of tissue repair and sealing devices, for use in both minimally invasive surgical (MIS) procedures and open, non-MIS procedures to rapidly repair tissue fenestrations and create a pressure-resistant, watertight seal in a tissue barrier. Tissue repair and sealing devices disclosed herein comprise an integrated graft and deployable clasp assembly and an applicator assembly having a clasp retain and release member that is slidably connected to a folded, deployable clasp. The applicator assembly places a graft on a tissue inner surface and a deployable clasp on a tissue outer surface to secure the graft to the tissue inner surface to, thereby, repair a tissue fenestration and create a watertight barrier.

Abstract: The application provides a valve clamping system. The valve clamping system includes a pushing device and a valve clip with coatings. The valve clip includes a push rod, the coatings, and a proximal clamping plate, and a distal clamping plate. The proximal clamping plate and the distal clamping plate extend radially outwardly relative to the push rod. The distal clamping plate is connected to the push rod. The proximal clamping plate is arranged between the push rod and the distal clamping plate. A valve holding space is formed between the proximal clamping plate and the distal clamping plate. The push rod is capable of driving the distal clamping plate to be expanded radially. The proximal clamping plate is capable of expanding toward the distal clamping plate by an elastic strain of the proximal clamping plate and is configured to clamp a valve tissue received in the valve holding space.

Abstract: This application provides a robotic arm and a control method therefor. The robotic arm comprises a spatial positioning mechanism, a planar motion mechanism and a connection and rotation joint connecting the spatial positioning mechanism and the planar motion mechanism. The space positioning mechanism comprises a base, and a joint mechanism including multiple joints, with the joint at a head end thereof installed onto the base, and the joint at a tail end rotatably connected to the connection and rotation joint; a tail end of the planar motion mechanism is connected to a surgical instrument. Perpendicular line of a plane where the planar motion mechanism is located is perpendicular to rotation axis of the connection and rotation joint; and the intersection between the rotation axis and axis of the surgical instrument is an active remote-center-of-motion point, which facilitates setting of the active remote-center-of-motion point and reduces occurrence of multi-arm collision.

Abstract: Provided are a high-intensity focused ultrasound apparatus (10) and a control method. According to the high-intensity focused ultrasound apparatus (10), by providing a focusing transducer (120) having a freely transformable shape, after an entire transducer assembly (100) extends into an inner cavity of an object to be treated, the transducer assembly (100) can extend through a narrow part into the inner cavity of an object to be treated, and after extending into the inner cavity of the object to be treated, the shape of the focusing transducer (120) in the transducer assembly (100) changes, so that the effective area of the focusing transducer (120) increases, and the ultrasonic energy produced increases, thereby enhancing the irradiation intensity for a region to be treated, and satisfying normal operation requirements of the transducer assembly (100).

Abstract: A needle assembly (20, 120, 220, 320) is provided that includes a needle (22) and a suture (24) coupled to the needle (22), and a needle guide tool (30, 130, 230, 330). The needle guide tool (30, 130, 230, 330) is configured to pass the needle (22) and the suture (24) through tissue of a body portion of a subject, and includes a needle guide (34, 134, 334), which is shaped so as to define a needle-guide surface (36, 136) that is configured to slidably contact a body-portion surface of the body portion without penetrating the body¬ portion surface.

Abstract: The present disclosure discloses a cortical button for surgical fixation is disclosed. The cortical button includes a first section defining a substantially flat head and a second section defining a solid stub. The second section being co-axial to and extending substantially vertically from the first section. The first section being defined with a plurality of provisions. The plurality of provisions extending partially along an outer circumference of the second section and being configured to receive a suture.

Abstract: An electronic patch, for stimulating tissue healing at a target site, is flexible enough to generally conform to a body surface adjacent to the target site, and includes: a battery or an arrangement of multiple batteries less than 5 mm thick; a capacitor connected directly with a coil in series; and pulse generating circuitry, powered by the battery or batteries. The circuitry repeatedly changes the voltage across the capacitor and coil, to produce pulses of current in the coil. The current produces a pulsed electromagnetic field at the target site for stimulating tissue healing, most of the electromagnetic field energy of each pulse being converted into electrostatic energy of the capacitor at the end of the pulse and back into electromagnetic field energy of the next pulse.

Abstract: A neutron capture therapy system and a target for a particle beam generating device, which may improve the heat dissipation performance of the target, reduce blistering and extend the service life of the target. The neutron capture therapy system includes a neutron generating device and a beam shaping assembly. The neutron generating device includes an accelerator and a target, and a charged particle beam generated by acceleration of the accelerator interacts with the target to generate a neutron beam. The target includes an acting layer, a backing layer and a heat dissipating structure, the acting layer interacts with the charged particle beam to generate the neutron beam, the backing layer supports the action layer, and the heat dissipating structure includes a tubular member composed of tubes arranged side by side.

Abstract: An instrument holder system comprises a guide body comprising first and second ends, and a passage extending between the first and second ends along an axis to receive an instrument, and a mechanical or electro-mechanical measuring device comprising an attachment body for coupling to the guide body, a probe to extend into a trajectory of the passage to contact the instrument and generate positional data, and, optionally, a control device coupled to the probe to receive the positional data. A method of determining a position of an instrument relative to an instrument holder comprises inserting the instrument into a passage of the instrument holder, moving the instrument into contact with a sensing element, moving a tip of the instrument out of the instrument holder to cause movement of the sensing element, and correlating movements of the sensing element to distances the tip extends out of the instrument holder.

Abstract: A delivery catheter, comprising a first catheter section (10), a second catheter section (20), a first pull wire assembly (30) and a second pull wire assembly (40); wherein the first pull wire assembly (30) comprises a first pull wire (32) and a first pull wire ring (31), when the first pull wire (32) is pulled, the first pull wire ring (31) drives the first catheter section (10) to bend; the second pull wire assembly (40) comprises a second pull wire (42) and a second pull wire ring (41), wherein the second pull wire ring (41) is disposed at a distal end of the second catheter section (20) and connected to a proximal end of the first catheter section (10); when the second pull wire (42) is pulled, the second pull wire ring (41) drives the second catheter section (20) to bend; an angle at which the first catheter section (10) can bend is greater than an angle at which the second catheter section (20) can bend.