Abstract: A current peak value measurement apparatus (100), a high voltage generator (200), and a therapeutic device for vascular calcification. The current peak value measurement apparatus (100) includes a PCB Rogowski coil (10), a sampling resistor (11), a signal amplification circuit (12), an integration and voltage retaining circuit (13) and a micro-controller (14), wherein the PCB Rogowski coil (10) is used for sensing a current signal in a circuit to be detected, and for obtaining a corresponding induced electromotive force; the micro-controller (14) is used for performing ADC sampling on the maximum value of a voltage signal, and for obtaining a current peak value of the current signal in the circuit to be according to ADC sampling data and preset current rating data. The apparatus has the advantages of a high safety, a fast response speed, a stable process, a high consistency and a low cost.

Abstract: Systems and methods are provided for a bodily fluid management system for pumping bodily fluid such as lymph. The bodily fluid management system may include an implantable pump with a rotor having a magnetic portion and inlet and outlet tubes that connect to a fluid chamber. The fluid chamber has a volume that can be selectively reduced or increased via the rotor. The rotor is designed to periodically open and close kinking valves at each of the inlet and outlet tube to permit bodily fluid to enter the fluid chamber during an intake cycle and exit the fluid chamber during a discharge cycle. The magnetic portion of the rotor may be caused to rotate by an external controller that is positioned outside of the body and adjacent to the pump. The external controller may have a magnet that magnetically interfaces with the rotor to cause the rotor to rotate.

Abstract: The present invention provides a catheter apparatus with a carrier comprising right-handed wire helixes and left-handed wire helixes that are plainly or bi-axially woven into a tubular structure. A therapeutic assembly wraps around one of the wire helixes to stabilize an associated interstice of the tubular structure. The regular shape of the carrier may be quickly recovered after the carrier is seriously bent or distorted in an intravascular treatment.

Abstract: An implant delivery device and an implant delivery system. The implant delivery device is applied to a catheter assembly (70) including a first inner tube (71) and a second inner tube (72). The implant delivery device includes two power conversion assemblies (10) which are sequentially arranged in the direction of a baseline (H), each of which includes a master member (11) and a slave member (12) in engagement with the master member (11). The slave member (12) of one of the two power conversion assemblies (10) is adapted for connection with the first inner tube (71), and the slave member (12) of the other of the two power conversion assemblies (10) is adapted for connection with the second inner tube (72). The power conversion assemblies (10) are configured to convert a rotational motion of the master members (11) to a linear motion of the slave members (12) in the direction of the baseline (H).

Abstract: A sterile closed system (20, 120) is provided that includes an airtight enclosure (40), an infusion-bag receptacle (44), medication-preparation tubing (48), one or more medication-preparation-tubing valves (50, 250), and an infusion-bag seal (46), which is configured to make an airtight seal with respective external surfaces of a medication port (36) and an IV tubing port (34) of an infusion bag (32). A medication-vial port (33) is configured to be sealingly coupled to a medication vial (30).

Abstract: A stoma instrument and a stoma method. The stoma instrument includes a first tube body, a second tube body, a third tube body, a grasping member, a puncturing member, and a cutting member. One end of the first tube body is provided with a receiving opening for receiving a biological tissue. The second tube body is movably arranged inside the first tube body. The third tube body is movably arranged inside the second tube body. The grasping member is used for radially contracting into the second tube body after deformation to follow the second tube body to pass through the biological tissue, and for radially expanding and moving, after the grasping member passes through the biological tissue and leaves the second tube body, towards the first tube body to grasp the biological tissue into the receiving opening. The cutting member is used for cutting the biological tissue at the receiving opening.

Abstract: The embodiments of the present disclosure provide a scanning fiber endoscope probe and a scanning fiber endoscope. The scanning fiber endoscope probe includes: a scanning illumination optical path and an inner-layer fiber collecting array, wherein the scanning illumination optical path includes a lens set, and the scanning illumination optical path is configured to scan laser emitted by a light source to form an optical spot on a surface of a sample tissue and to form a field of view; and the inner-layer fiber collecting array is configured to collect and transmit a portion of detecting light scattered from or reflected by the sample tissue through the lens set to perform an imaging by a photoelectric detector.

Abstract: An exemplary method of performing an annuloplasty procedure includes introducing a catheter into a left atrium of a heart, deploying a first member from the catheter, anchoring the first member to a posterior side of a mitral valve annulus in the left atrium, deploying a second member from the catheter, anchoring the second member to an anterior side of the mitral valve annulus in the left atrium, deploying a flexible tensile member from the catheter, attaching the tensile member to both the first member and the second member and applying tension to the tensile member to draw the first member and the second member toward one another and bring the posterior side and the anterior side of the mitral valve annulus into closer approximation. Annuloplasty systems and components are also disclosed.

Abstract: An artificial heart valve and a delivery system therefor are disclosed. The artificial heart valve includes an outer stent (1) and an inner stent (2), the outer stent (1) is detachably connected to the inner stent (2), or when the artificial heart valve is in use, the inner stent (2) is located inside the outer stent (1), the inner stent (2) is not connected to the outer stent (1), the outer stent (1) includes an outer stent frame (11) and one-time leaflets (12) provided on the outer stent frame (11), the inner stent (2) includes an inner stent frame (21) and prosthetic leaflets (22) disposed within the inner stent frame (21). The delivery system includes a delivery sheath (31) and, disposed within the delivery sheath (31), a guidewire lumen (32) and a stent catheter (33), the stent catheter (33) is configured to be suitable for engagement with the artificial heart valve.

Abstract: Embodiments are provided that relate to systems comprising a detector component for detecting the presence of a harmful substance in a human body; communication circuitry for transmitting data to a remote device; and a power source configured to supply energy to the detector component and communication circuitry.

Abstract: The present application relates to a method for preparing a pegylated collagen-like protein and the use thereof. The method includes reacting a collagen-like protein and a polyethylene glycol derivative at a molar ratio of the collagen-like protein to the polyethylene glycol derivative of 1 to 16:1 under the conditions of a pH of 6.0-8.0 and a temperature of 2-8° C. to prepare a pegylated collagen-like protein. In some embodiments, the reacting includes a reaction solvent of the collagen-like protein, and the polyethylene glycol derivative is water or a dilute hydrochloric acid solution. In some instances, the method may additionally include a purification step. The purification step may intercept substances with a molecular weight greater than or equal to 30,000 Da in the reaction product by filtration to obtain the PEGylated collagen-like protein.

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 system or method may be used to provide registration, calibration, or tracking of patient anatomy using a camera and a robotic surgical system. The camera may include a structured light camera. The camera may be used to acquire an image of patient anatomy or a reference object. A method may include determining a distance (e.g., from the camera) or a location of the patient anatomy or the reference object. The robotic surgical system may include a robotic arm that may be configured to move based on the distance or location of the patient anatomy or the reference object.

Abstract: The embodiments of the present disclosure provide an endoscopic incision device. The endoscopic incision device may include a sheath tube. The sheath tube may have a proximal end and a distal end, the sheath tube may be provided with a channel extending along an axial direction, and the channel may be able to accommodate a pulling portion. The pulling portion may include a pulling wire and a protruding portion disposed at a distal end of the pulling wire, and the pulling wire may move axially within the channel to cause the protruding portion to switch between a first state and a second state. When the protruding portion is in the first state, the protruding portion may be accommodated within the channel. When the protruding portion is in the second state, the protruding portion may protrude out of the distal end of the channel.

Abstract: An adjustable hemostasis valve device, comprising a catheter sheath housing, a catheter sheath cap, a sealing member and an opening adjustment mechanism, wherein the catheter sheath housing is axially movably connected to the catheter sheath cap and they can axially move relative to each other, and the sealing member and the opening adjustment mechanism are connected to each other and then arranged in the catheter sheath housing; the opening adjustment mechanism comprises a first positioning plate and a mounting cylinder, the sealing member comprises spiral flow channel and is fixed to the mounting cylinder and the first positioning plate, axial movement of the catheter sheath cap enables the first positioning plate to slide along the mounting cylinder, such that the sealing member is compressed released and rotated, so as to adjust the opening size of the spiral flow channel.

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 method for preparing a pre-loadable biological heart valve capable of rapid rehydration includes performing a cross-linking treatment, wherein a biological valve is cross-linked by soaking in an aqueous glutaraldehyde solution; performing a hydrophilic treatment, wherein the biological valve is soaked in a solution containing a hydrophilic molecule and a condensing agent, to allow the hydrophilic molecule to be immobilized on the biological valve by chemical grafting; and performing a drying treatment, wherein the biological valve after the hydrophilic treatment and the cross-linking treatment is dried to obtain the pre-loadable biological heart valve capable of rapid rehydration.

Abstract: Disclosed herein are embodiments of a reinforced collagen matrix device for superior capsule repair. The device can include a collagen matrix cover, a first reinforcement strip positioned along the first side of the cover, and a second reinforcement strip positioned along the second side of the cover. A first end and a second end of the first and second reinforcement strips can extend past the first end and the second end of the collagen matrix cover so as not be covered by the collagen matrix cover. The collagen matrix cover can be folded along a first fold and a second fold and extend over the first and second reinforcement strips so that a portion of the first and second reinforcement strips are covered by the collagen matrix cover along a portion of the length of the first reinforcement strip.

Abstract: Exemplary embodiments of a tissue repair device to repair tissue by deploying implants, comprising: a selector knob is configured to allow a user to change from a default position to a first position, position is indicated by a window positioned on a handle; a depth control knob is configured to adjust an exposure length of a needle under a depth control sheath to an appropriate or desired length to deploy a first implant and a second implant to secure with a tissue, a deployment knob is configured to push a pusher rod to deploy first implant from needle for delivering of a flexible member to secure tissue, deployment knob is configured to automatically spring back to a pre-specified position after deploying first implant from needle, deployment knob configured to push pusher rod to deploy second implant from needle for delivering of flexible member to secure tissue.

Abstract: An implant delivery device (10) and an implant delivery system are disclosed. The delivery device (10) includes a delivery assembly, a first flexible catheter (11) and a second flexible catheter (12). At least a part of the delivery assembly is movably inserted in the first flexible catheter (11) along an axial direction thereof, and both the first flexible catheter (11) and the delivery assembly are movably inserted in the second flexible catheter (12) along an axial direction thereof and configured to protrude out of the second flexible catheter (12) from its distal end. The first flexible catheter (11) and the second flexible catheter (12) are configured to bend independently. The delivery assembly changes its extension direction when bent shapes of the first flexible catheter (11) and the second flexible catheter (12) vary.