Abstract: The provided is a medical guide positioning device, including: a guide positioning mechanism, the guide positioning mechanism including a resilient positioning part and an extension part; the resilient positioning part is a hollow mesh body, with the front end portion thereof being a curved surface protruding in the direction of the direction of backing away from the extension part, and the connection between the resilient positioning part and the extension part is a joint, the resilient positioning part having an initial state and a deformation state; the extension part has an opposing first end and a second end, the proximity of the elastically positioned portion is the first end, and between the first end and the second end are a number of lengths of lead wires. The provided solves the problems of inconvenient positioning, low protection performance and poor overall practicability of the existing technology.

Abstract: The present application discloses an occluder, including a distal disc, a waist portion, and a proximal disc which are formed in sequence. The proximal disc includes a proximal disc surface. A proximal bending area is formed at a circumference of the proximal disc surface and bent towards the distal disc, where the proximal bending area surrounds an edge of the distal disc, and a stabilizing wire is further threaded through a free end of the proximal bending area and may tighten the free end of the proximal bending area towards the waist portion.

Abstract: Provided is a vehicle for ultrasound-guided interventional operation, including: a vehicle body, wherein the vehicle body is provided with a carriage; an operating table arranged in the carriage; an operating lamp arranged in the carriage; an ultrasonic device arranged in the carriage, wherein the ultrasonic device is configured to provide the ultrasonic guidance; a monitoring device arranged in the carriage, wherein the monitoring device is configured to monitor vital signs of patients during the operation procedure; an anesthesia device arranged in the carriage, wherein the anesthesia device is configured to maintain an anesthesia state of the patient during the operation procedure; and a fixing device arranged on an inner wall of the carriage, wherein the fixing device is configured to fix the ultrasonic device, the monitoring device and the anesthesia device with the inner wall of the carriage during a driving process of the vehicle body.

Abstract: Disclosed are a hook and an occluder. The hook is used for being fixed to the occluder. The occluder is formed by interweaving a first-direction line and a second-direction line. The hook includes a positioning body and hook portions. The positioning body is provided with first and second positioning portions. The first and second positioning portions are configured to limit the hook to the first-direction line and the second-direction line, respectively, or to simultaneously limit, in different directions of force, the hook in an axial direction to the first-direction line/the second-direction line. The hook portion is formed by bending the positioning body. An included angle ? is formed between a projection of the hook portion on the positioning body and an axis of the positioning body, and the included angle ? is in a range of greater than 0 degrees and less than 90 degrees.

Abstract: A woven single-riveting degradable implant belonging to the technical field of medical devices convertible between a compressed configuration and a free configuration comprises a first structure, a second structure, and a middle portion provided between the first structure and the second structure, wherein the implant is woven with weaving threads made of a degradable material; and the first structure is provided with at least one connecting element, and the second structure comprises parabolas formed by a plurality of bent threads, and is provided with a size-adjustable contractile opening at the one end of the second structure away from the middle portion. The implant overcomes the defects in the prior art to solve the problem that the degradable thread material is difficult to be shaped into an occluder due to the softness thereof, thus avoiding complications unique to metallic devices caused by an metallic occluder due to the material characteristic thereof.

Abstract: Disclosed is an occluder made of a degradable material and including a net-shaped framework and a locking member. The net-shaped framework includes an upper disc surface, a waist part, and a lower disc surface. The lower disc surface is provided with a melt tail end and a limiting through hole formed therein. The locking member includes a tensioning part having a diffusion end and a contraction end, and a locking part. The diffusion end is connected to the upper disc surface. The contraction end is connected to the locking part. A locking ring is provided at the proximal end of the locking part. The diameter of the locking ring is greater than that of the distal end of the through hole. The locking ring can be slotted into/penetrate out of the through hole by means of deformation. The occluder does not easily fall off and has a good occlusion effect.

Abstract: The present application discloses an occluder, including a distal disc, a waist portion, and a proximal disc which are formed in sequence. The proximal disc includes a proximal disc surface. A proximal bending area is formed at a circumference of the proximal disc surface and bent towards the distal disc, where the proximal bending area surrounds an edge of the distal disc, and a stabilizing wire is further threaded through a free end of the proximal bending area and may tighten the free end of the proximal bending area towards the waist portion.

Abstract: Disclosed are a method for preparing a closure end of an occluder, and a device for preparing a closure end of an occluder. The method includes: step 100, performing a first pressing on a front end of a strip, and simultaneously hot-melting the front end of the strip to preform the front end of the strip; step 200, performing a second pressing on the preformed front end of the strip, and simultaneously hot-melting the preformed front end of the strip, so as to form the preformed front end of the strip; and step 300, cooling the formed front end of the strip to obtain the closure end. Through first pressing and hot-melting, a strip sets and is formed into a preset shape; and then, through second pressing, the strip is better fitted to a mold and debubbled, so that a formed closure end has a higher strength.

Abstract: A split type precisely-anchorable transcatheter aortic valve system comprises a split transcatheter aortic valve anchoring stent (10) and a transcatheter artificial biological aortic valve (20), wherein the shape and structure of the transcatheter aortic valve anchoring stent (10) are matched with the real structure of the aortic valve after the patient's image data is subjected to three-dimensional reconstruction, the transcatheter aortic valve anchoring stent (10) is delivered to the aortic valve position of the patient to be released, deformed and combined with the aortic valve leaflet tissue and the subvalvular tissue of the patient; the transcatheter artificial biological aortic valve (20) is delivered into the transcatheter aortic valve anchoring stent (10) to be released, the valve stent is deformed to expand the valve to the functional state, the transcatheter aortic valve anchoring stent (10) is deformed again and combined with the expanded transcatheter artificial biological aortic valve (20), and m

Abstract: A split type precisely-anchorable transcatheter aortic valve system comprises a split transcatheter aortic valve anchoring stent (10) and a transcatheter artificial biological aortic valve (20), wherein the shape and structure of the transcatheter aortic valve anchoring stent (10) are matched with the real structure of the aortic valve after the patient's image data is subjected to three-dimensional reconstruction, the transcatheter aortic valve anchoring stent (10) is delivered to the aortic valve position of the patient to be released, deformed and combined with the aortic valve leaflet tissue and the subvalvular tissue of the patient; the transcatheter artificial biological aortic valve (20) is delivered into the transcatheter aortic valve anchoring stent (10) to be released, the valve stent is deformed to expand the valve to the functional state, the transcatheter aortic valve anchoring stent (10) is deformed again and combined with the expanded transcatheter artificial biological aortic valve (20), and m

Abstract: Provided is a vehicle for ultrasound-guided interventional operation, including: a vehicle body, wherein the vehicle body is provided with a carriage; an operating table arranged in the carriage; an operating lamp arranged in the carriage; an ultrasonic device arranged in the carriage, wherein the ultrasonic device is configured to provide the ultrasonic guidance; a monitoring device arranged in the carriage, wherein the monitoring device is configured to monitor vital signs of patients during the operation procedure; an anesthesia device arranged in the carriage, wherein the anesthesia device is configured to maintain an anesthesia state of the patient during the operation procedure; and a fixing device arranged on an inner wall of the carriage, wherein the fixing device is configured to fix the ultrasonic device, the monitoring device and the anesthesia device with the inner wall of the carriage during a driving process of the vehicle body.

Abstract: A replaceable left atrial appendage occluder includes a stepped balloon and an occlusion disc. The left atrial appendage orifice occlusion portion of the stepped balloon is configured to completely occlude the left atrial appendage orifice. The left atrial anchor portion of the stepped balloon is configured to be clamped on the left atrial wall to prevent the left atrial appendage occluder from shifting. The occlusion disc is released in the pericardial cavity, and is connected to the stepped balloon by the connecting column of the occlusion disc, so that the left atrial appendage is pressed and occluded between the stepped balloon and the occlusion disc. The stepped balloon occludes the left atrial appendage orifice. The surface of the stepped balloon is smooth and coated with an anticoagulant coating.

Abstract: A replaceable left atrial appendage occluder includes a stepped balloon and an occlusion disc. The left atrial appendage orifice occlusion portion of the stepped balloon is configured to completely occlude the left atrial appendage orifice. The left atrial anchor portion of the stepped balloon is configured to be clamped on the left atrial wall to prevent the left atrial appendage occluder from shifting. The occlusion disc is released in the pericardial cavity, and is connected to the stepped balloon by the connecting column of the occlusion disc, so that the left atrial appendage is pressed and occluded between the stepped balloon and the occlusion disc. The stepped balloon occludes the left atrial appendage orifice. The surface of the stepped balloon is smooth and coated with an anticoagulant coating.