Patents by Inventor Jianxiang Ma
Jianxiang Ma 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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Publication number: 20240082001Abstract: A native leaflet treatment system and method for treating native heart valve leaflets before heart valve repair or replacement procedure. The treatment system includes a delivery apparatus configured to enter the heart, and a native leaflet treatment device stored in the delivery apparatus in a compressed state. The treatment device includes a clamping structure, which is configured to retain at least a portion of the native leaflets in the deployed state. The treatment device is delivered into the heart using the delivery apparatus, and released near the native heart valve, where the treatment device expands and the clamping structure captures and holds the native leaflet, such that the native leaflets will no longer block blood flow. This improves the dynamics of the blood flow which facilitates subsequent surgical procedures (minimally-invasive surgery or open surgery) for heart valve repair or replacement.Type: ApplicationFiled: October 18, 2022Publication date: March 14, 2024Applicant: Sinomed Cardiovita Technology Inc.Inventors: Jianhua Sun, Tianzhu Li, Jianxiang Ma, Jinhong Zhao, Lei Meng
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Publication number: 20230383946Abstract: An ejector tube of a gas cooktop and a gas cooktop. An embodiment of this application relates to an ejector tube of a gas cooktop, including a tube body provided with a gas inlet and a gas outlet, where a plurality of air filling through holes are provided around a wall body of the tube body, thereby helping to improve a mixing effect of gas and primary air.Type: ApplicationFiled: October 26, 2021Publication date: November 30, 2023Inventors: Shuo Pan, Jianxiang Ma, Haitao Luo
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Publication number: 20210361418Abstract: The present invention provides a transapical implantable mitral valve device, which includes an outer valve stent comprising an outer valve stent body that is composed of a plurality of first structure units arranged in the circumferential direction and an anchoring unit that is disposed on the outer valve stent body for anchoring the mitral valve device in a human body, at least one of an inner surface and an outer surface of the outer valve stent body being covered with an outer skirt; an inner valve stent disposed inside the outer valve stent and interconnected with the outer valve stent, a cavity being formed between the outer valve stent and the inner valve stent; and a valve leaflet structure disposed in the inner valve stent to form a prosthetic valve.Type: ApplicationFiled: December 6, 2018Publication date: November 25, 2021Applicant: SINO MEDICAL SCIENCES TECHNOLOGY INC.Inventors: Zhonghua LI, Tianzhu LI, Jianxiang MA, Jinhong ZHAO, Lei MENG
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Publication number: 20200383698Abstract: The invention relates to an apparatus for breaking thrombus and aspirating the thrombus comprising: an aspirating rotary grinding hand-held system which integrates a rotary grinding head driving device, an aspirating device, a power supply device and a control device; a micro catheter device which is communicated with the aspirating device and the rotary grinding head driving device, respectively; a waste liquid collecting device which is connected to the aspirating device, wherein the aspirating device and the waste liquid collecting device form an airtight passage; and a distal end rotary grinding head device which is connected to the rotary grinding head driving device through a connection mandrel, wherein the power supply device provides power for the rotary grinding head driving device; wherein the distal end rotary grinding head device and the connection mandrel are accommodated in an inner cavity of the micro catheter device; and wherein the control device controls the aspirating device and the rotaryType: ApplicationFiled: June 5, 2020Publication date: December 10, 2020Applicant: SINO Medical Sciences Technology Inc.Inventors: Zhongrong Miao, Zhonghua Li, Tianzhu Li, Jianxiang Ma, Jing Li
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Publication number: 20200030083Abstract: Medical devices and methods for endovascularly or transcatheterly replacing a patient's heart valve, including: a delivery system (9) having an entry profile of 30 Fr or less; a self-expandable annulus ring (10) disposed in the delivery system (9) including a self-expandable anchoring and clipping structure and multiple bridges (4) connected to the anchoring and clipping structure; and a replacement heart valve (11) disposed in the delivery system (9) and connected to the bridges (4). The bridges (4) are formed of a shape memory material; during deployment, the bridges (4) fold upwardly inside the self-expandable anchoring and clipping structure to lift the replacement heart valve (11) into position.Type: ApplicationFiled: December 4, 2017Publication date: January 30, 2020Applicant: SINO MEDICAL SCIENCES TECHNOLOGY INC.Inventors: Tianzhu LI, Jianxiang MA, Lei MENG
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Patent number: 10426605Abstract: A mitral valve replacement device is adapted to be deployed at a mitral valve position in a human heart. The device has an atrial flange defining an atrial end of the device, a ventricular portion defining a ventricular end of the device, the ventricular portion having a height ranging between 2 mm to 15 mm, and an annulus support that is positioned between the atrial flange and the ventricular portion. The annulus support includes a ring of anchors extending radially therefrom, with an annular clipping space defined between the atrial flange and the ring of anchors. A plurality of leaflet holders positioned at the atrial end of the atrial flange, and a plurality of valve leaflets secured to the leaflet holders, and positioned inside the atrial flange at a location above the native annulus.Type: GrantFiled: November 9, 2017Date of Patent: October 1, 2019Assignee: Sino Medical Sciences Technology, Inc.Inventors: Jianlu Ma, Yong Huo, Tianzhu Li, Jinhong Zhao, Jianxiang Ma, Lei Meng
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Publication number: 20180071084Abstract: A mitral valve replacement device is adapted to be deployed at a mitral valve position in a human heart. The device has an atrial flange defining an atrial end of the device, a ventricular portion defining a ventricular end of the device, the ventricular portion having a height ranging between 2 mm to 15 mm, and an annulus support that is positioned between the atrial flange and the ventricular portion. The annulus support includes a ring of anchors extending radially therefrom, with an annular clipping space defined between the atrial flange and the ring of anchors. A plurality of leaflet holders positioned at the atrial end of the atrial flange, and a plurality of valve leaflets secured to the leaflet holders, and positioned inside the atrial flange at a location above the native annulus.Type: ApplicationFiled: November 9, 2017Publication date: March 15, 2018Applicant: Sino Medical Sciences Technology, Inc.Inventors: Jianlu Ma, Yong Huo, Tianzhu Li, Jinhong Zhao, Jianxiang Ma, Lei Meng
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Patent number: 9839511Abstract: A mitral valve replacement device is adapted to be deployed at a mitral valve position in a human heart. The device has an atrial flange defining an atrial end of the device, a ventricular portion defining a ventricular end of the device, the ventricular portion having a height ranging between 2 mm to 15 mm, and an annulus support that is positioned between the atrial flange and the ventricular portion. The annulus support includes a ring of anchors extending radially therefrom, with an annular clipping space defined between the atrial flange and the ring of anchors. A plurality of leaflet holders positioned at the atrial end of the atrial flange, and a plurality of valve leaflets secured to the leaflet holders, and positioned inside the atrial flange at a location above the native annulus.Type: GrantFiled: October 3, 2014Date of Patent: December 12, 2017Assignee: SINO MEDICAL SCIENCES TECHNOLOGY INC.Inventors: Jianlu Ma, Yong Huo, Tianzhu Li, Jinhong Zhao, Jianxiang Ma, Lei Meng
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Publication number: 20160235529Abstract: A mitral valve replacement device is adapted to be deployed at a mitral valve position in a human heart. The device has an atrial flange defining an atrial end of the device, a ventricular portion defining a ventricular end of the device, the ventricular portion having a height ranging between 2 mm to 15 mm, and an annulus support that is positioned between the atrial flange and the ventricular portion. The annulus support includes a ring of anchors extending radially therefrom, with an annular clipping space defined between the atrial flange and the ring of anchors. A plurality of leaflet holders positioned at the atrial end of the atrial flange, and a plurality of valve leaflets secured to the leaflet holders, and positioned inside the atrial flange at a location above the native annulus.Type: ApplicationFiled: October 3, 2014Publication date: August 18, 2016Applicant: Sino Medical Sciences Technology, Inc.Inventors: Jianlu Ma, Yong Huo, Tianzhu Li, Jinhong Zhao, Jianxiang Ma, Lei Meng