Patents by Inventor Dongjin WANG
Dongjin WANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12343005Abstract: A minimally invasive knotter includes a first forcep handle, a second forcep handle, and a clamping head; middle parts of the first forcep handle and the second forcep handle intersect and are connected in a hinged manner, the first forcep handle includes an installation head, and a rotating rod is spherically hinged to the installation head; the clamping head is connected to the rotating rod; the second forcep handle includes a limiting clamp and a moving component; one side of the limiting clamp includes an opening; the limiting clamp is connected to the second forcep handle through the moving component so as to limit the clamping head at a set angle; an end part, backing away from the rotating rod, of the clamping head includes two clamping rods; and the two clamping rods approach to or move away from each other by a power component.Type: GrantFiled: March 5, 2024Date of Patent: July 1, 2025Assignee: NANJING DRUM TOWER HOSPITALInventors: Can Xu, Dongjin Wang
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Patent number: 12318110Abstract: A great saphenous vein collection device using a double-sleeve knife, including a grip, a sleeve cutting knife, and a protective sleeve is disclosed.Type: GrantFiled: October 11, 2024Date of Patent: June 3, 2025Assignee: NANJING DRUM TOWER HOSPITALInventors: Can Xu, Dongjin Wang
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Patent number: 12318104Abstract: Embodiments of the present disclosure provide an efficient bacteriostatic minimally invasive collection device for great saphenous vein, comprising a grip, a trocar cutting knife, and a protective trocar. The protective trocar is disposed inside the trocar cutting knife, the trocar cutting knife is rotationally connected to the protective trocar; the protective trocar passes through the grip; the grip is provided with a drive mechanism for driving the trocar cutting knife to move relative to the grip; a bacteriostatic cylinder is fixedly mounted at one end of the grip, and the trocar cutting knife passes through the bacteriostatic cylinder; an ultraviolet lamp is fixedly mounted inside the bacteriostatic cylinder, and an end of the bacteriostatic cylinder is provided with a cleaning mechanism for cleaning the trocar cutting knife.Type: GrantFiled: October 11, 2024Date of Patent: June 3, 2025Assignee: NANJING DRUM TOWER HOSPITALInventors: Can Xu, Dongjin Wang
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Patent number: 12318554Abstract: A femoral artery cannula for providing lower limb blood perfusion includes an outer tube and an inner tube. The inner tube is fixedly nested inside the outer tube, a lower surface of the outer tube is provided with a plurality of through holes, upper surfaces of outer sides of the outer tube and the inner tube are each provided with a through slot, two ends of lower sides of the two through slots are each fixedly provided with a sliding rod, a sliding plate is connected between the two sliding rods in a movably adjustable manner, a liquid injection tube is fixedly nested in an inner side of the sliding plate, lower sides of the two sliding plates are each provided with a transmission mechanism for pushing the liquid injection tubes to move, and outer sides of the through slots are each provided with a blocking mechanism.Type: GrantFiled: October 31, 2023Date of Patent: June 3, 2025Assignee: NANJING DRUM TOWER HOSPITALInventors: Can Xu, Dongjin Wang
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Publication number: 20250160821Abstract: A minimally invasive knotter includes a first forcep handle, a second forcep handle, and a clamping head; middle parts of the first forcep handle and the second forcep handle intersect and are connected in a hinged manner, the first forcep handle includes an installation head, and a rotating rod is spherically hinged to the installation head; the clamping head is connected to the rotating rod; the second forcep handle includes a limiting clamp and a moving component; one side of the limiting clamp includes an opening; the limiting clamp is connected to the second forcep handle through the moving component so as to limit the clamping head at a set angle; an end part, backing away from the rotating rod, of the clamping head includes two clamping rods; and the two clamping rods approach to or move away from each other by a power component.Type: ApplicationFiled: March 5, 2024Publication date: May 22, 2025Inventors: Can XU, Dongjin WANG
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Publication number: 20250134581Abstract: The present invention relates to the technical field of electrocoagulation cutters, and in particular, to a manual control handheld pressure-adjustable irrigation and suction electrocoagulation cutter, including: a connecting rod, wherein an irrigation channel and a suction channel which are spaced apart from each other are formed in the connecting rod; a cutting head is arranged at a left end of the connecting rod; a suction port communicated to the suction channel is provided on the cutting head; a head end of the irrigation channel penetrates through the left end of the connecting rod; a connecting head is arranged at a right end of the connecting rod; a mechanical conveying mechanism configured to convey tissue debris cut by the electrocoagulation cutter from a tail end of the suction channel to a middle way of the connecting head is arranged on the connecting rod; an irrigation joint and a suction joint are respectively arranged at front and rear ways of the connecting head; a partition block configuredType: ApplicationFiled: April 3, 2024Publication date: May 1, 2025Inventors: Can XU, Dongjin WANG
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Publication number: 20250114561Abstract: A femoral artery cannula for providing lower limb blood perfusion includes an outer tube and an inner tube. The inner tube is fixedly nested inside the outer tube, a lower surface of the outer tube is provided with a plurality of through holes, upper surfaces of outer sides of the outer tube and the inner tube are each provided with a through slot, two ends of lower sides of the two through slots are each fixedly provided with a sliding rod, a sliding plate is connected between the two sliding rods in a movably adjustable manner, a liquid injection tube is fixedly nested in an inner side of the sliding plate, lower sides of the two sliding plates are each provided with a transmission mechanism for pushing the liquid injection tubes to move, and outer sides of the through slots are each provided with a blocking mechanism.Type: ApplicationFiled: October 31, 2023Publication date: April 10, 2025Inventors: Can XU, Dongjin WANG
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Publication number: 20250107909Abstract: The present invention discloses a left ventricular outflow tract stent and a delivery system.Type: ApplicationFiled: May 16, 2024Publication date: April 3, 2025Inventors: Can XU, Dongjin WANG
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Patent number: 12239323Abstract: A left atrial appendage ligator having a ligature and operating handle. One end of the operating handle is fixedly connected with a support rod, the inner wall of the support rod is fixedly connected with a feeding pipe and locking pipe. A first sliding groove is formed in the inner side wall of the feeding pipe. The inner side wall of the first sliding groove is slidably connected with a first sliding block. The middle part of the first sliding block is fixedly connected with a feeding push rod. One end of the feeding push rod is fixedly connected with a first hook. One side of the first sliding block is fixedly connected with a return spring. The left atrial appendage ligator has a locking push rod, ligature, hanger knot and supporting component. The ligature is prearranged on a sleeve pipe portion to form the hanger knot to avoid knotting during the operation process. During operation, the knotting can be completed only by locking the hanger knot.Type: GrantFiled: August 16, 2023Date of Patent: March 4, 2025Assignee: NANJING DRUM TOWER HOSPITALInventors: Can Xu, Dongjin Wang
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Publication number: 20250032147Abstract: A great saphenous vein collection device using a double-sleeve knife, including a grip, a sleeve cutting knife, and a protective sleeve is disclosed.Type: ApplicationFiled: October 11, 2024Publication date: January 30, 2025Applicant: NANJING DRUM TOWER HOSPITALInventors: Can XU, Dongjin WANG
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Publication number: 20250032145Abstract: Embodiments of the present disclosure provide an efficient bacteriostatic minimally invasive collection device for great saphenous vein, comprising a grip, a trocar cutting knife, and a protective trocar. The protective trocar is disposed inside the trocar cutting knife, the trocar cutting knife is rotationally connected to the protective trocar; the protective trocar passes through the grip; the grip is provided with a drive mechanism for driving the trocar cutting knife to move relative to the grip; a bacteriostatic cylinder is fixedly mounted at one end of the grip, and the trocar cutting knife passes through the bacteriostatic cylinder; an ultraviolet lamp is fixedly mounted inside the bacteriostatic cylinder, and an end of the bacteriostatic cylinder is provided with a cleaning mechanism for cleaning the trocar cutting knife.Type: ApplicationFiled: October 11, 2024Publication date: January 30, 2025Applicant: NANJING DRUM TOWER HOSPITALInventors: Can XU, Dongjin WANG
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Publication number: 20240325025Abstract: A left atrial appendage ligator having a ligature and operating handle. One end of the operating handle is fixedly connected with a support rod, the inner wall of the support rod is fixedly connected with a feeding pipe and locking pipe. A first sliding groove is formed in the inner side wall of the feeding pipe. The inner side wall of the first sliding groove is slidably connected with a first sliding block. The middle part of the first sliding block is fixedly connected with a feeding push rod. One end of the feeding push rod is fixedly connected with a first hook. One side of the first sliding block is fixedly connected with a return spring. The left atrial appendage ligator has a locking push rod, ligature, hanger knot and supporting component. The ligature is prearranged on a sleeve pipe portion to form the hanger knot to avoid knotting during the operation process. During operation, the knotting can be completed only by locking the hanger knot.Type: ApplicationFiled: August 16, 2023Publication date: October 3, 2024Inventors: Can XU, Dongjin WANG