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 guide device for an orthopedic surgery on a phalange includes a distal part having a pin guide is provided. The distal part includes a first opening having a first diameter at a proximal end for inserting at least a portion of a phalange into a tubular section of the distal part, and a second opening at a distal end. The pin guide is connected to the distal end, having a first length which is shorter than a length of a k-wire inserted into the phalange, and a second diameter which is greater than a diameter of the k-wire, and less than the first diameter. In certain embodiments the guide device further includes a proximal part having an aperture for inserting the phalange and a plurality of fasteners, for fastening the proximal part to the distal part.

Abstract: A surgical instrument retainer can include a proximal component and a distal component. The proximal component can include a head, a first body, and a proximal plurality of projections. The distal component can define a second instrument bore and a body bore and can include a distal plurality of projections. The can head engageable with the end effector coupler to position the instrument retainer within the end effector coupler.

Abstract: Disclosed are a valve clamping device and a valve clamping system, wherein the valve clamping device comprises: a supporting portion provided along an axial direction; a hollow adjusting portion, wherein at least part of the supporting portion is provided in the adjusting portion, one end of the adjusting portion is sleeved outside the supporting portion, and the other end of the adjusting portion is movable with respect to the supporting portion; a clamping portion surrounding an outside of the adjusting portion; and a driving portion connected to the clamping portion to drive the clamping portion to be close to or away from the adjusting portion.

Abstract: A method for preparing 18F-BPA and an intermediate, by which high-purity 18F-BPA is obtained. The method simplifies the synthesis steps after 18F labeling, and is easy to operate and efficient.

Abstract: A hypotube having a laser cut wave pattern to improve flexibility. The laser cut wave pattern on the hypotube includes multiple portions that vary the pitch and angle of the cuts. The laser cut wave pattern provides flexibility while maintaining pushability further into the most tortuous vasculature. The laser cut wave pattern also provides the ability to torque the flexible hypotube back and forth, with a 1 to 1 response, without stretching the flexible hypotube. The laser cut hypotube may be used in a number of vascular or neurovascular, such as a guidewire or catheter, or delivery of a stent.

Abstract: A vascular shunt frame with improved apposition including a main body tube; at least one end of the main body tube is provided with a sealing covering; the sealing covering is provided with a main blood flow opening; a shaping component is disposed at the edge of the main blood flow opening. When the main body stent is inserted into the main blood flow opening of the main body tube, the shaping component can be closely attached to the outer surface of the main body stent, such that the sealing covering closely fits the outer surface of the main body stent to prevent endoleaks. The present disclosure also provides a vascular stent provided with an apposition-improved vascular shunt frame.

Abstract: A wearable ultrasound apparatus is disclosed for use in connection with various biomedical applications, including musculoskeletal (“MSK”) imaging and analysis, In at least one embodiment, the apparatus provides at least one of an ultrasound module configured for obtaining an at least one ultrasound image of a portion of a user’s body on which the at least one ultrasound module is positioned (hereinafter referred to as the “target site” for simplicity purposes), a electrophysiological (“EP”) module configured for detecting bioelectric signals of the target site, and a near-infrared spectroscopy (“NIRS”) module configured for monitoring oxygenation status and/or biochemical measurements of the target site.

Abstract: The present disclosure provides a heart valve repair method, comprising: advancing a distal end of a suture implanting apparatus from an outside of a body through a transapical approach into a left ventricle or a right ventricle of a heart; holding each leaflet of a heart valve with the distal end of the suture implanting apparatus; implanting at least one suture into the leaflet; withdrawing the suture implanting apparatus from the body; advancing a distal end of a suture locking apparatus from the outside of a body through a transapical approach into the corresponding left ventricle or the corresponding right ventricle; using the suture locking apparatus to lock the plurality of sutures; and withdrawing the suture locking apparatus from the body. The heart valve repair method has a simple surgical procedure, a low degree of patient trauma, and a high success rate of surgery.

Abstract: A guide cap and a loading system for loading an implant into a delivery system are disclosed which are capable of simplifying operations required in interventional surgery using the implant. The guide cap has a lumen passing therethrough and includes: a conical section; a straight or conical tube in communication with a small open end of the conical section; and a flange, wherein a large open end of the conical section flares outward and thereby forms the flange. The loading system includes a guider and the guide cap. During the process of loading the implant into the delivery system, the guide cap enables the valve prosthesis to be coupled to the connector of the delivery system and allows the valve prosthesis to be compressed so as to be entirely capsuled in the delivery system with relatively easy and quick operations, thereby reducing surgery time during its clinical use.

Abstract: Disclosed is a balloon catheter (1000) with a drug coating. The balloon catheter comprises a pushing catheter (310), at least one expandable first balloon (100) located at a distal end of the pushing catheter (310), and a pre-expansion mechanism. The first balloon (100) is fixedly arranged on the pushing catheter (310). The pre-expansion mechanism (200) comprises an expansion sleeve (220) and a connector (240). The expansion sleeve (220) is used for housing the first balloon (100) before the first balloon (100) is not expanded and when same is pre-expanded. The connector (240) is connected to the expansion sleeve (220) and axially moves with respect to the pushing catheter (310) after the first balloon (100) is pre-expanded, so that the first balloon (100) is exposed outside the expansion sleeve (220).

Abstract: A navigation method for a medical operation and implemented by a robotic system is provided. The method includes the steps of: receiving, at a processor of the robotic system, at least one set of navigation data; receiving or generating at least one three-dimensional model of the virtual object in the navigation data; calculating the navigation data to generate a virtual environment and at least one navigation instruction; and presenting, at a user interface associated with the robotic system, the virtual environment and/or the navigation instruction to a user of the robotic system for the user to refer to during the medical operation.

Abstract: Provided are an anticoagulation and anticalcification biological material and a preparation method therefor. The preparation method includes the following steps: introducing, on a biological tissue, a polymerizable reactive group, and undergoing free radical copolymerization with a zwitterion. In the present disclosure, by introducing a reactive group capable of free radical polymerization to a biological tissue and undergoing free radical copolymerization with a zwitterionic monomer, collagen in the biological tissue is crosslinked at multiple sites by means of a polymer, thereby achieving sufficient crosslinking within and between collagen fibers, improving the stability of the biological tissue, and prolonging the service life of the biological tissue. Moreover, a zwitterion is introduced to the surface of the biological tissue, to improve the anticoagulation performance, promote the in-situ endothelialization of a biological valve, and prevent the calcium element deposition.

Abstract: An ultrasonic imaging system including an array transducer that includes a plurality of elements each performing at least one of emission or reception of ultrasonic waves, at least some of the plurality of elements being disposed so as to face each other. The ultrasonic imaging system performs malfunction inspection including specifying one emitting element among emitting elements that emit ultrasonic waves and a group of receiving elements that are at least some of the plurality of elements and that receive transmitted waves emitted from the emitting element and transmitted through an imaging region; collecting measurement data of the transmitted waves via the group of receiving elements while switching the emitting element; calculating transfer characteristic values from the measurement data; and detecting a malfunctioning element among the plurality of elements on the basis of the transfer characteristic values.

Abstract: The present disclosure provides a heart valve repair method, comprising: advancing a distal end of a suture implanting apparatus from an outside of a body through a transapical approach into a left ventricle or a right ventricle of a heart; holding each leaflet of a heart valve with the distal end of the suture implanting apparatus; implanting at least one suture into the leaflet; withdrawing the suture implanting apparatus from the body; advancing a distal end of a suture locking apparatus from the outside of a body through a transapical approach into the corresponding left ventricle or the corresponding right ventricle; using the suture locking apparatus to lock the plurality of sutures; and withdrawing the suture locking apparatus from the body. The heart valve repair method has a simple surgical procedure, a low degree of patient trauma, and a high success rate of surgery.

Abstract: The present invention provides for a method for continuously monitoring a coupling quality of a coupling interface between an acoustic energy source of a therapeutic device and a body surface area of a patient, comprising the steps of: (f) obtaining a plurality of images of at least one predetermined first area of the coupling interface; (g) extracting at least one first image characteristic of a predetermined first image of said plurality of images; (h) extracting said at least one first image characteristic of at least one second image of said plurality of images, said at least one second image being temporally spaced apart from said predetermined first image; (i) determining a quantitative parameter corresponding to a difference between said at least one first image characteristic of said predetermined first image and said at least one first image characteristic of said at least one second image, and (j) actuating a signal if said quantitative parameter exceeds a predetermined reference threshold.

Abstract: Disclosed are a functionalized biological matrix material, a preparation method therefor and use thereof, which belong to the technical field of medical materials. In the present invention, by means of the hybridization of a biological matrix material with 3-sulfopropyl methacrylate, the cross-linking and functionalization of the biological matrix material are achieved at the same time. A specific method comprises modifying carbon-carbon double-bond structures such as allyl, methallyl in a biological matrix material, immersing the biological matrix material in an aqueous solution containing 3-sulfopropyl methacrylate, and finally performing cross-linking and functionalization on the biological matrix material by means of radical polymerization, and using the biological matrix material to prepare materials such as valves.

Abstract: A strain gauge (10, 40, 50), a pressure sensor (20, 60), and an interventional medical catheter. The strain gauge (10, 40, 50) comprises a substrate (11) and at least two sensitive gages (1, 2) provided on the substrate (11), the at least two sensitive gages (1, 2) being arranged along two mutually perpendicular directions and sharing one ground port (3). The pressure sensor (20, 60) comprises an elastomer (21, 61) and the strain gauge (10, 40, 50) provided on the elastomer (21, 61). The interventional medical catheter comprises a catheter distal end and the pressure sensor (20, 60) provided at the catheter distal end.

Abstract: A multi-lumen stent graft including a tubular main body stent graft and a tubular connection stent graft; the main body stent graft includes a tubular main body stent; the main body stent includes a tubular main body covering and a main body support frame fixed on a wall of the main body covering; a main lumen and at least one sub lumen are separated axially by a separation covering within the main body stent; in a released state, a proximal end of the connection stent graft and the main lumen at a distal end of the tubular main body stent graft are fitted and connected together. The multi-lumen stent graft is not prone to endoleaks and displacement, which can simplify surgical operations, reduce the difficulty and risk of surgery, and has a wide range of applications.

Abstract: A process for analyzing elements and mass ratios of elements of a tissue includes approximating the tissue having unknown elements and mass ratios of the unknown elements thereof using the data of the medical image corresponding to a tissue having known elements and mass ratios of the known elements thereof. A method for establishing a geometric model based on a medical image includes: reading data of the medical image; defining a type of a tissue according to a conversion relationship between the data of the medical image and tissue types or according to the process; determining a quantity of tissue clusters of the tissue; defining a tissue density of the tissue by a conversion relationship between the data of the medical image and density values; establishing a 3D coding matrix with information about the tissue and the density; and generating the geometric model.