Patents Assigned to Venus Medtech (Hangzhou) Inc.
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Patent number: 11864999Abstract: The present invention discloses a core assembly, a sheath assembly, a sheath, a sheath processing method and an interventional instrument delivery system and method. A core assembly for delivering an interventional instrument according to the present invention comprises a core tube, a locking member fixed at a distal end of the core tube for connecting the interventional instrument, and a bendable adjustable tube mounted around an outer periphery of the core tube, wherein the distal ends of the bendable adjustable tube and the core tube are fixedly connected to each other, and the proximal ends can slide relative to each other.Type: GrantFiled: April 22, 2021Date of Patent: January 9, 2024Assignee: Venus Medtech (Hangzhou) IncInventors: Zhifei Zhang, Jianan Wang, Yu Zhang, Zhenjun Zi, Frank Min Zeng, Hou-Sen Lim
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Patent number: 11786369Abstract: Disclosed in the present invention are a stent apparatus having a self-pleated skirt, a processing method therefor, a skirt pleating method, and a cardiac valve. The stent apparatus comprises a stent, and is further provided with a flexible skirt. The skirt comprises: an unfolded state, where the skirt extends axially and surrounds the periphery of the stent before release; and a stacked state, where the skirt is driven by deformation during release of the stent, and gathers and is stacked along an axial direction of the released stent to form an annular perivalvular leakage blocking part. The stent apparatus is further provided with a pull-wire which is merely threaded on the skirt, and the pull-wire may react to the radial deformation during the release of the stent to drive the skirt to enter the stacked state.Type: GrantFiled: January 12, 2022Date of Patent: October 17, 2023Assignee: Venus medtech (Hangzhou), Inc.Inventor: Jesse Jun Qi
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Patent number: 11759343Abstract: A distal end structure of a sheath for delivering an interventional instrument includes a tubular body section which has opposite distal and proximal sides. A plurality of elastic expansion pieces is arranged circumferentially at the distal side of the body section at intervals. Each expansion piece assumes a converged configuration extending in an axial direction of the body section and a flared configuration away from each other. A connecting strip is provided between two adjacent expansion pieces, and two ends of the connecting strip are respectively connected to expansion pieces at respective sides at connection positions adjacent to distal ends of the expansion pieces. In the converged configuration of each expansion piece, a middle portion of the connecting strip is folded and received in a region between two adjacent expansion pieces; and in the flared configuration of each expansion piece, the middle portion of the connecting strip is unfolded.Type: GrantFiled: April 22, 2021Date of Patent: September 19, 2023Assignee: Venus Medtech (Hangzhou) Inc.Inventors: Wei Song, Jianan Wang, Yu Zhang, Xiangyu Shao
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Patent number: 11554034Abstract: A method and an assembly for securing a crimped medical device over a deflated balloon of a balloon catheter is provided. The medical device is positioned in its expanded state over the deflated balloon of the balloon catheter, and is then crimped over the deflated balloon. First and second eyelets of first and second strings, respectively, are then threaded through first and second rings, respectively, that are provided on the medical device. Next, a locking wire is advanced through a lumen defined between the sheath and the catheter body to exit the distal end of the sheath, and then advanced through the first and second eyelets and into the distal tip of the balloon catheter. The sheath is then advanced over the crimped medical device to the distal tip to completely cover the crimped medical device.Type: GrantFiled: October 6, 2020Date of Patent: January 17, 2023Assignee: Venus Medtech (Hangzhou) Inc.Inventors: Trinh Van Pham, Ashley Rachel Zeng
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Patent number: 11464630Abstract: A stent device with skirt folds and a processing method thereof, a skirt folding method, and a heart valve. The stent device comprises a stent (1, 10) and a flexible skirt (2, 107), the skirt (2, 107) having an expanded state, in which the skirt is axially extended and surrounds the stent (1, 105) before release thereof, and a folded state, in which the skirt is driven by the deformation caused when the stent (1, 105) is released, collapses and folds axially along the released stent (1, 105) so as to form an annular peripheral leakage-blocking portion. The peripheral leakage prevention technology enables an interventional stent to fit to the inner wall of a vessel more snugly, such that the stent does not easily move and is more stable, thereby being suitable for more people, reducing additional risks of surgery and preventing complications such as peripheral leakage and thrombus.Type: GrantFiled: March 3, 2020Date of Patent: October 11, 2022Assignee: Venus Medtech (Hangzhou) IncInventors: Dajun Kuang, Jesse Jun Qi, Min Frank Zeng, Jincheng Yu, Lo Pham, Lai Nguyen
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Patent number: 11439525Abstract: The present invention relates to a device (3) intended to be attached to or interconnected with a medical implant (1), and intended to be attached to or interconnected with a catheter (5), the catheter (5) being intended for implanting the implant (1). The invention further relates to a catheter (5) suited for receiving at least one such device (3) and to a method.Type: GrantFiled: August 23, 2019Date of Patent: September 13, 2022Assignee: Venus Medtech (Hangzhou) Inc.Inventors: Wolfgang Goetz, Hou-Sen Lim
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Patent number: 11406499Abstract: An easy-to-control interventional instrument delivery device, comprising a core tube (7), a guiding head (2) and a fixing head (3) being fixed onto the core tube (7); the guiding head (2) is fixed at a distal end of the core tube (7), and the fixing head (3) extends from a proximal end side of the core tube (7), an interventional instrument mounting position being located between the guiding head (2) and the fixing head (3); the outer periphery of the interventional instrument mounting position is provided with an axially skiable outer sheathing tube (5), further being provided with a floating limiting strip (1); a proximal end of the floating limiting strip (1) is a starting end (13) that is connected near the fixed head (3), and a distal end is a terminal end (11, 101) that floats between the interventional instrument mounting position and the outer sheathing tube (5).Type: GrantFiled: April 23, 2020Date of Patent: August 9, 2022Assignee: Venus Medtech (Hangzhou) Inc.Inventors: Zhifei Zhang, Zhenjun Zi, Min Frank Zeng, Quangang Gong
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Patent number: 11364133Abstract: A stent and a securely-installed artificial valve replacement device having the same, the stent being of a cylindrical structure; the top of the stent is provided with a fixed ear (60); the fixed ear (60) has a neck portion (601) connected to the top of the stent, and a head portion (602) engaged with the fixed head of the stent; the head portion (602) has a bending structure for improving the overall radial thickness; and the artificial valve replacement device is comprised of a stent and a prosthetic valve fixed on the stent. The stent with a bending structure overcomes the problem of easily disengaging from the fixed head of the stent, while not affecting the release of the stent.Type: GrantFiled: October 18, 2020Date of Patent: June 21, 2022Assignee: Venus Medtech Changzhou, Inc.Inventors: Rongjun Lei, Zhifei Zhang, Qiming Zhang
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Patent number: 11331185Abstract: A delivery system facilitating retrieval of interventional device includes a sheath, an operation handle for driving the sheath to move, and a tube axially slidably engaging with the pusher section. The sheath includes a carrier section at a proximal end for surrounding the interventional device and a pusher section connected with the carrier section. Depending on different axial positions, the tube assumes an initial configuration in which a proximal end portion thereof is at a periphery of the pusher section, and an operation configuration in which the proximal end portion is held tightly around the carrier section and limits further expansion of the carrier section. The delivery system functions to hold the support frame tightly by surrounding the sheath with the axially movable tube, retrieving the support frame and preventing the support frame from falling off from a core shaft, thereby reducing risks in surgery and the mortality rate.Type: GrantFiled: March 22, 2019Date of Patent: May 17, 2022Assignee: Venus Medtech (Hongzhou) IncInventors: Min Frank Zeng, Zhenjun Zi
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Patent number: 11253358Abstract: Disclosed in the present invention are a stent apparatus having a self-pleated skirt, a processing method therefor, a skirt pleating method, and a cardiac valve. The stent apparatus comprises a stent, and is further provided with a flexible skirt. The skirt comprises: an unfolded state, where the skirt extends axially and surrounds the periphery of the stent before release; and a stacked state, where the skirt is driven by deformation during release of the stent, and gathers and is stacked along an axial direction of the released stent to form an annular perivalvular leakage blocking part. The stent apparatus is further provided with a pull-wire which is merely threaded on the skirt, and the pull-wire may react to the radial deformation during the release of the stent to drive the skirt to enter the stacked state.Type: GrantFiled: March 3, 2020Date of Patent: February 22, 2022Assignee: Venus Medtech (Hangzhou), Inc.Inventor: Jesse Jun Qi
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Patent number: 11197772Abstract: The present invention provides a guidewire adjuster and a delivery-system control handle provided with the guidewire adjuster. The guidewire adjuster includes a support mechanism which has a lumen for a guidewire to extend therethrough; and a driving mechanism for driving the guidewire to move back and forth in the lumen. The guidewire adjuster is able to drive the guidewire to move with respect to a sheath of the delivery system. The support mechanism is connected to the control handle of the delivery system and forms a lumen for accommodating the guidewire. A proximal end of the sheath together with the stent can be driven to move upwardly, due to the relative movement between the guidewire and the sheath of the delivery system. Therefore, the position of the stent can be adjusted by advancing the guidewire forward when the stent has been deployed at a lower position than expected.Type: GrantFiled: June 14, 2019Date of Patent: December 14, 2021Assignee: Venus Medtech (Hangzhou) IncInventor: Rongjun Lei
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Patent number: 11000371Abstract: The present invention relates to an apparatus (3) for use during implanting at least one medical implant (6) at an implantation site within a patient's body, wherein the apparatus (3) comprises an aligning device (9) for aligning the apparatus (3) at the implantation site, wherein the aligning device (9) is capable of being transferred from a non-aligning position into an aligning position. It further relates to a set and a method.Type: GrantFiled: October 30, 2018Date of Patent: May 11, 2021Assignee: Venus Medtech Hangzhou IncInventors: Wolfgang Goetz, Hou-Sen Lim
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Publication number: 20210030572Abstract: A stent and a securely-installed artificial valve replacement device having the same, the stent being of a cylindrical structure; the top of the stent is provided with a fixed ear (60); the fixed ear (60) has a neck portion (601) connected to the top of the stent, and a head portion (602) engaged with the fixed head of the stent; the head portion (602) has a bending structure for improving the overall radial thickness; and the artificial valve replacement device is comprised of a stent and a prosthetic valve fixed on the stent. The stent with a bending structure overcomes the problem of easily disengaging from the fixed head of the stent, while not affecting the release of the stent.Type: ApplicationFiled: October 18, 2020Publication date: February 4, 2021Applicant: Venus Medtech (Hangzhou) Inc.Inventors: Rongjun LEI, Zhifei ZHANG, Qiming ZHANG
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Patent number: 10806613Abstract: A stent and a securely-installed artificial valve replacement device having the same, the stent being of a cylindrical structure; the top of the stent is provided with a fixed ear (60); the fixed ear (60) has a neck portion (601) connected to the top of the stent, and a head portion (602) engaged with the fixed head of the stent; the head portion (602) has a bending structure for improving the overall radial thickness; and the artificial valve replacement device is comprised of a stent and a prosthetic valve fixed on the stent. The stent with a bending structure overcomes the problem of easily disengaging from the fixed head of the stent, while not affecting the release of the stent.Type: GrantFiled: October 12, 2018Date of Patent: October 20, 2020Assignee: Venus medtech (Hangzhou) Inc.Inventors: Rongjun Lei, Zhifei Zhang, Qiming Zhang
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Patent number: 10736744Abstract: The present invention relates to a handle assembly (100) for an implant delivery device for folding or unfolding at least one medical implant by means of at least one tension thread, wherein the handle assembly (100) comprises a drum (14) for winding the tension thread thereon by rotating the drum (14); a knob (9) to be rotated by a user of the handle assembly (100) in order to fold or unfold the medical implant by tightening or winding the tension thread or by releasing or unwinding the tension thread, the knob (9) being arranged or interconnected with the drum (14) such that the drum (14) may be rotated when the knob (9) is rotated; and a brake frame assembly (25) comprising at least one brake element and at least one spring (256, 257) arranged to act on the brake element such that the brake elements contact one surface of the rear knob (9).Type: GrantFiled: July 31, 2014Date of Patent: August 11, 2020Assignee: Venus Medtech (Hangzhou) IncInventors: Hou-Sen Lim, Wolfgang Gotz
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Patent number: 10736740Abstract: A heart valve assembly has a frame comprising an anchoring section, a generally cylindrical leaflet support section, and a neck section that transitions between the anchoring section and the valve support section. The anchoring section has a ball-shaped configuration defined by a plurality of wires that extend from the leaflet support section, with each wire extending radially outwardly to a vertex area where the diameter of the anchoring section is at its greatest, and then extending radially inwardly to a hub. A plurality of leaflets are stitched to the leaflet support section. The heart valve assembly is delivered to the location of a native pulmonary trunk, the vertex area of the anchoring section is deployed into the native pulmonary arteries such that the vertex area is retained in the pulmonary arteries, and then the leaflet support section is deployed in the pulmonary trunk.Type: GrantFiled: August 17, 2018Date of Patent: August 11, 2020Assignee: Venus Medtech (Hangzhou) Inc.Inventors: Min Frank Zeng, Pham Lo
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Patent number: 10736743Abstract: The present invention relates to a handle assembly (100) for an implant delivery device for folding or unfolding at least one medical implant by means of at least one tension thread, wherein the handle assembly (100) comprises a drum (14) for winding the tension thread thereon by rotating the drum (14); a knob (9) to be rotated by a user of the handle assembly (100) in order to fold or unfold the medical implant, the knob (9) being interconnected with the drum (14) such that the drum (14) is rotated when the knob (9) is rotated; and a displacement limiter for limiting the length or displacement by which the tension thread (11) may be at least one of wound onto or unwound from the drum (14) by rotating the knob (9).Type: GrantFiled: July 31, 2014Date of Patent: August 11, 2020Assignee: Venus Medtech (Hangzhou) Inc.Inventors: Hou-Sen Lim, Wolfgang Gotz
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Patent number: D909581Type: GrantFiled: January 6, 2020Date of Patent: February 2, 2021Assignee: Venus Medtech (Hangzhou) Inc.Inventors: Frank Zeng, Larry Lo, Jess Qi
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Patent number: D910852Type: GrantFiled: January 4, 2020Date of Patent: February 16, 2021Assignee: Venus Medtech (Hangzhou) Inc.Inventors: Frank Zeng, Larry Lo, Jess Qi
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Patent number: D977644Type: GrantFiled: January 4, 2020Date of Patent: February 7, 2023Assignee: Venus Medtech (Hangzhou) Inc.Inventors: Frank Zeng, Larry Lo, Jess Qi