Abstract: An electric handle for delivering an implant is disclosed. The electric handle (1) includes an electric control unit (10), a power-driven transmission mechanism (20), a handle housing (30), an outer tube anchor (40) and an inner tube anchor (50), wherein: the electric control unit (10) is operatively coupled to the power-driven transmission mechanism (20) to actuate the power-driven transmission mechanism (20); the power-driven transmission mechanism (20) is supported within the handle housing (30) and moveable together with the outer tube anchor (40); the inner tube anchor (50) is disposed within the handle housing (30) and is configured to hold an inner tube (3) of a delivery system; and the outer tube anchor (40) is configured to hold an outer tube (2) of the delivery system and is fixed to an end of the outer tube (2). A delivery system used especially for delivery of prosthetic valves is also disclosed, including an outer tube (2), an inner tube (3), an expandable implant (4) and the electric handle (1).

Abstract: A tissue resection system includes a introducer sleeve with a hub. An obturator having a shaft with a blunt tip is adapted for insertion through the introducer sleeve, and an electrosurgical resecting device with an elongated extension member is adapted for insertion through the introducer sleeve.

Abstract: The method for the automated and assisted acquisition of anatomical surfaces includes a first acquisition of the surfaces undertaken in order to create a first numerical model and a perioperative second acquisition undertaken by scanning the surfaces in order to create a second numerical model for identifying the coordinates of the surfaces. The surfaces are supported by a robotic arm; and then the models are brought into correspondence by resetting. The scanning in the second acquisition includes making a preliminary identification of the coordinates of noteworthy points on the surfaces manually, assisted by the robotic arm, and the identifying parts a the points, in order to construct a reference frame and to determine a scanning region; creating an intermediate model from the reference frame and at least one of the points; preliminary resetting the first model with the second model; and automatically scanning the determined zone.

Abstract: A left atrial appendage (LAA) occluder is provided. The LAA occluder includes a sealing disc and an anchoring device, both of which are mutually connected; a part where an LAA cooperates with the anchoring device is an anchoring net, and the anchoring net is of a backboneless structure. The whole anchoring device is of the backboneless structure. The anchoring device is formed by weaving super elastic metal wires or shape memory alloy wires, a distal end of the anchoring device is opened, and a proximal end of the anchoring device is constricted and is connected with the sealing disc to form a conical net. The distal end of the anchoring device is opened and is rolled towards the proximal end to form the anchoring net, and the anchoring net surrounds the conical net. The anchoring net is connected with the conical net through an arc transition area.

Abstract: An adjustable dual-lens device for 3D stereoscopic surgical microscopes has an outer casing, an image set, and an adjusting set. The image set is mounted in the outer casing and has two lenses. The lenses are pivotally mounted in the outer casing at a spaced interval. The adjusting set is mounted in the outer casing and has two adjusting units. Each adjusting unit has a driving motor, a cam, and a limiting element. The driving motor is mounted in the outer casing adjacent to one of the lenses and has a driving shaft. The cam is eccentrically mounted around the driving shaft and is pressed against the lens that is adjacent to the driving motor. The limiting element is connected to the outer casing and the corresponding lens to enable the corresponding lens to press against the cam.

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 invention concerns a dental surgery device (1), comprising a punching member (15) having a cutting end part (16) suitable for removal of tissue on a jaw bone of a patient, and a guiding sleeve (7) for guiding the punching member (15) during a punching operation. The guiding sleeve (7) has a first side (8) intended to face away from the jaw bone and a second side (9) intended to face towards the jaw bone during a punching operation, and a guiding through-hole (101) extends from the first side (8) to the second side (9). The punching member (15) is adapted to fit into the guiding through-hole (101) such as to allow guidance by the guiding sleeve (7) when the punching member (15) is moved in an axial direction through the guiding through-hole (101).

Abstract: An apparatus for folding or unfolding at least one medical implant by way of at least one tension thread includes a shaft and a tensioning device for altering a form or shape of the foldable and/or unfoldable implant by way of the tension thread (11, 11?). In at least one shaft section thereof, the shaft includes a plurality of individual shaft fibers.

Abstract: A tissue-resecting probe includes an elongated outer sleeve extending about an axis to a distal housing having a first window for receiving tissue. An edge of the first window has a dielectric surface. A rotatable inner sleeve has a second window, and at least a portion of an edge of the second window provides a first polarity electrode. Rotation of the inner sleeve within the outer sleeve moves the probe between window-open and window-closed configurations to resect tissue.

Abstract: An application of a high-intensity focused ultrasound system to treatment of essential hypertension. A treatment process includes: conducting ultrasonic positioning measurement on both sides of perirenal fat tissue of a patient, setting a therapeutic window and parameters of the system, and setting corresponding power parameter of the system, so as to make local temperature of the tissue during treatment reach 40-70° C., wherein treatment portions are both sides, and treatment scope is one third to all of the whole tissue; starting the system to treat one side of the tissue according to the set parameters and then the other. By treating a secondary center for regulating the activity of a whole-body sympathetic system, the activity of the whole-body sympathetic system can be reduced, so that the blood pressure level of the patient can be reduced, and fewer kinds and smaller dosage of antihypertensive drugs can be taken or ceased.

Abstract: An in-vitro biological valve calcification evaluation method, comprising the following steps: preparing calcification evaluation solution comprising glutaraldehyde solution, saline solution, borate buffer solution, reducing calcium ingredient solution and calcium-containing plasma solution, the reducing calcium ingredient solution comprising alcohol, alkaline solution, oil and its derivatives, and buffer solution; preheating the reducing calcium ingredient solution; conducting treatment with the glutaraldehyde solution prior to reducing calcium ingredient solution; conducting treatment with the reducing calcium ingredient solution; preserving the valve samples; conducting in-vitro calcification reaction with the calcium-containing plasma solution; and detecting calcium content by atomic absorption spectrum.

Abstract: A beam shaping assembly for neutron capture therapy includes a beam inlet, a target having nuclear reaction with an incident proton beam from the beam inlet to produce neutrons forming a neutron beam defining a main axis, a moderator adjoining to the target, a reflector surrounding the moderator, a thermal neutron absorber adjoining to the moderator, a radiation shield arranged inside the beam shaping assembly and a beam outlet. The neutrons are moderated to epithermal neutron energies. An outer surface of the moderator includes at least a first tapered section. The reflector leads the neutrons deviated from the main axis back. The thermal neutron absorber is used for absorbing thermal neutrons so as to avoid overdosing in superficial normal tissue during therapy. The radiation shield is used for shielding leaking neutrons and photons so as to reduce dose of the normal tissue not exposed to irradiation.

Abstract: A dry animal-derived collagen fiber tissue material and preparation method and bioprosthesis thereof are disclosed. The preparation method includes: 1) rinsing of an animal-derived collagen fiber tissue material that has been treated with a crosslinking agent; 2) immersion of the rinsed tissue material in a non-aqueous alcoholic solution for dehydration; 3) successive immersion of the tissue material that has been dehydrated with the non-aqueous alcoholic solution in saccharide solutions of different gradients of concentrations for gradient dehydration; 4) taking out and drying of the gradient dehydrated tissue material; and 5) hermetic packaging of the dried tissue material and sterilization. The preparation method is simple and allows the use of easily-available low-cost materials, resulting in lower costs. In addition, it can reduce the toxicity caused by a residue of the aldehyde crosslinking agent.

Abstract: An application of a radiofrequency catheter ablation system to treatment of essential hypertension. The treatment process is under ultrasonic guidance, an electrode needle is made to penetrate into target tissue of a patient, electrification is conducted to start ablation, the needle is withdrawn or made to penetrate into the other side of the target tissue for target ablation after reaching ablation temperature and duration time, and overall ablation treatment is completed. The system can treat a secondary center for regulating the activity of a whole-body sympathetic system to reduce its activity, thus, the blood pressure level of a patient can be reduced, and fewer kinds and smaller dosage of antihypertensive drugs taken or ceased altogether. By treating the secondary center, the activity of the whole-body sympathetic system, insulin resistance and whole-body fibrosis is reduced, and other diseases characterized in activity abnormity of the sympathetic system might be treated too.

Abstract: A shielding material for shielding radioactive ray and preparation method thereof. The shielding material consists of water, a cementing material, a fine aggregate material, a coarse aggregate material and an additive, wherein the fine aggregate material consists of a borosilicate glass powder and a barite sand, and the coarse aggregate material consists of a barite. A content of boron element in the borosilicate glass powder accounts for 0.5%-1% of the total weight of the shielding material. A content of barium sulfate in the barite sand and the barite accounts for 71%-75% of the total weight of the shielding material. Other contents include water, the cementing material and the additive, and a sum of contents of all components is 100% total weight of the shielding material.

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 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: A device is intended to be attached to or interconnected with a medical implant, and intended to be attached to or interconnected with a catheter. The catheter is intended for implanting the implant. A catheter is suited for receiving at least one such device and a method provides a delivery implement with an implant detachably disposed in the device.

Abstract: An instrument and method for applying thermal energy to targeted tissue. An instrument and method for tissue thermotherapy. In one embodiment, a method includes providing a vapor source comprising a pump configured for providing a flow of liquid media from a liquid media source into a vaporization chamber having a heating mechanism, actuating the pump to provide the liquid into the vaporization chamber, applying energy from the heating mechanism to convert a substantially water liquid media into a minimum water vapor level for causing an intended effect in tissue. For examples such levels can comprise at least 60% water vapor, at least 70% water vapor, at least 80% water vapor or at least 90% water vapor for causing an intended effect in tissue.

Abstract: The present invention provides a valve stent used safely comprising a supporting net frame, and a flared section connected to an end of the supporting net frame; wherein the flared section is connected to all end nodes located at a corresponding side of the supporting net frame, the flared section is grid shaped, and a number of intersection points of the grids decreases along an axial direction away from the supporting net frame. The present invention also provides a valve replacement device comprising an above valve stent and a prosthesis valve fixed inside the supporting net frame.