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公开(公告)号：US12109331B2
公开(公告)日：2024-10-08
申请号：US17467637
申请日：2021-09-07
申请人： OLYMPUS CORPORATION
发明人： Takashi Magara
CPC分类号： A61L29/16 , A61B1/005 , A61L29/049 , A61L2420/02 , C08L27/18 , C08L27/20 , C08L63/00
摘要： A medical device includes a resin base including one or more than one material selected from a group consisted by an ethylene propylene resin containing fluorine, a styrene resin containing fluorine, an olefin resin containing fluorine, a vinyl chloride resin containing fluorine, a polyester resin containing fluorine, a polyurethane resin containing fluorine, and a nylon resin containing fluorine; an underlayer formed on the resin base, the underlayer including an oxazolidone ring; and an epoxy resin layer formed on the underlayer.
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公开(公告)号：US20240316901A1
公开(公告)日：2024-09-26
申请号：US18693012
申请日：2022-10-03
申请人： Nordson Corporation
发明人： Thomas Bash , Andrew Schombs , Lilian Campbell
IPC分类号： B32B7/12 , A61L29/04 , A61L29/08 , B32B1/08 , B32B15/02 , B32B15/08 , B32B27/08 , B32B27/28 , B32B27/32 , B32B27/34 , B32B27/40 , B32B37/12
CPC分类号： B32B7/12 , A61L29/041 , A61L29/085 , B32B1/08 , B32B15/02 , B32B15/08 , B32B27/08 , B32B27/285 , B32B27/322 , B32B27/34 , B32B27/40 , B32B37/1284 , B32B2255/10 , B32B2255/26 , B32B2274/00 , B32B2307/7376 , B32B2307/748 , B32B2325/00 , B32B2327/18 , B32B2535/00 , B32B2597/00
摘要： Multilayer tubes including an inner layer and a tie layer are described. The inner layer includes a fluorinated polymer, and has an inner surface defining an inner diameter of the multilayer tube and an outer surface separated from the inner surface by a thickness of the inner layer. The tie layer includes a functionalized styrene block copolymer and is disposed on the outer surface of the inner layer. When the multilayer tube further includes an outer layer, the multilayer tubes exhibit improved peel strength as compared to multilayer tubes including the inner layer and outer layer alone. Methods of manufacturing the multilayer tubes and articles comprising the multilayer tubes are also described.
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3.发明公开公开(公告)号：US20240307593A1
公开(公告)日：2024-09-19
申请号：US18634452
申请日：2024-04-12
申请人： Ension, Inc.
发明人： Patrick Cahalan , Linda Cahalan
CPC分类号： A61L29/049 , A61L29/145 , C08L5/10 , C08L27/18 , C08L63/00 , C08L79/02 , A61L2420/02 , A61L2420/06
摘要： A manufacturing method fora pipeline flow diverter or stent includes activating a blood-contacting metal surface of the medical device via i) propene plasma treatment or ii) contacting the surface with an organic solution comprising a silane functional compound having an ethylenically unsaturated functional group, wherein the organic solution follows a blood flow path through the medical device; grafting a polymeric hydrogel to the activated surface; bonding a positively charged spacer molecule to the polymeric hydrogel by contacting the polymeric hydrogel with a first wet chemistry treatment composition comprising an aqueous solution containing a cationic polymer, wherein the first wet chemistry treatment follows a blood flow path through the medical device; and covalently bonding heparin to the spacer molecule by contacting the spacer molecule with a second wet chemistry treatment composition comprising heparin, wherein the second wet chemistry treatment follows a blood flow path through the medical device.
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公开(公告)号：US20240293641A1
公开(公告)日：2024-09-05
申请号：US18270576
申请日：2021-11-24
发明人： Heng LIN , Yunyun LIU , Qinglong LIU , Xueli LUO , Yumei LIU , Li SUN
CPC分类号： A61M25/0012 , A61L29/04 , A61M25/0045 , A61M25/005 , A61M25/0054 , A61M2205/0216 , A61M2205/0222
摘要： A catheter and a method of making a transition structure of a catheter. The catheter includes at least one polymeric layer including at least one transition structure. Each transition structure is a tubular structure including a homogeneous material zone and a heterogeneous material zone. Any continuous closed region of the homogeneous material zone is referred to as a first sub-region and any continuous closed region of the heterogeneous material zone as a second sub-region, and any axial section of the transition structure includes at least one second sub-region. A leading section and/or a trailing section of the transition structure include(s) at least one first sub-region and at least one second sub-region. The catheter has smooth transitioning of flexibility/stiffness and mechanical properties, which can enhance the catheter's delivery performance.
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公开(公告)号：US20240245884A1
公开(公告)日：2024-07-25
申请号：US18421747
申请日：2024-01-24
发明人： Wayne Mower , John Hall , Christopher Cindrich , Michael Adams , Christian Lentz , Muluken Terefe , Adam Wilhite
CPC分类号： A61M25/005 , A61L29/04 , A61M2025/0004 , A61M2205/02
摘要： A vascular prosthesis deployment device and related methods are disclosed. In some embodiments the deployment device may include a delivery catheter assembly. The delivery catheter assembly may include an outer sheath, an intermediate sheath, and an inner sheath. One or more of the outer sheath, the intermediate sheath, and the inner sheath may be reinforced with a braided structure to prevent elongation and ovalization of the sheaths. The braided structure may include one or more yarn members imbedded in a material and formed from a plurality of twisted singles. The twisted singles may be formed from an aromatic polyamide material.
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公开(公告)号：US20240189553A1
公开(公告)日：2024-06-13
申请号：US18554937
申请日：2021-04-12
发明人： Songyun XU , Lin WAN , Jingjing ZHU , Yirong GONG , Chang PENG , Mian LI , Xueying WEI
CPC分类号： A61M25/1029 , A61L29/049 , A61L29/085 , A61L29/16 , A61M25/104 , A61L2300/416 , A61L2300/608 , A61M2025/1031 , A61M2025/105 , A61M2025/1075
摘要： Balloon catheter (22) having a coating comprises a primer layer (24) comprising at least one or more substantially hydrophilic compounds, a first layer (26) comprising an inclusion compound; and a second layer (28) comprising a mixture of a hydrophobic polymer, an active therapeutic agent and the inclusion compound.
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公开(公告)号：US20240099618A1
公开(公告)日：2024-03-28
申请号：US18371181
申请日：2023-09-21
发明人： Shelby Ann Bieritz , Yiping Ma
CPC分类号： A61B5/150206 , A61L29/042 , A61L29/085 , A61L29/10 , A61L29/14 , A61L33/0041 , A61M25/0606
摘要： Provided herein is a device including a housing having a proximal end, a distal end, and a sidewall therebetween defining an interior, a fluid conduit displaceably received within the housing interior and having a proximal end and a distal end, the fluid conduit having a first conduit portion at the proximal end of the fluid conduit and a second conduit portion at the distal end of the fluid conduit, wherein the fluid conduit is configured to be advanced from a first, proximal position in which the second conduit portion does not extend beyond a distal end of a catheter of the intravenous catheter assembly to a second, distal position in which the second conduit portion extends beyond a distal end of a catheter of the intravenous catheter assembly, wherein at least a portion of the fluid conduit is configured to be antithrombogenic.
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公开(公告)号：US20240091033A1
公开(公告)日：2024-03-21
申请号：US18524495
申请日：2023-11-30
申请人： Scott M. Epstein
发明人： Scott M. Epstein
CPC分类号： A61F2/844 , A61F2/82 , A61L29/041 , A61L29/145 , A61L31/048 , A61L31/145 , A61M25/0017 , A61M2207/00
摘要： The present invention relates generally a manufacturing process which results in a completely hydrogel polymer device that maintains lumen patency which allows for numerous applications. One or more physical post-implantation dimensions of the device can be controlled by placing it in a solution that has a predetermined osmolarity and/or pH. In addition, the device can deliver an absorbed therapeutic agent to a target anatomical site. Alternatively, the device can function as a selective membrane to selectively absorb one or more target molecules from a body fluid.
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公开(公告)号：US20240066846A1
公开(公告)日：2024-02-29
申请号：US17896188
申请日：2022-08-26
申请人： ZEUS COMPANY INC.
CPC分类号： B32B27/32 , A61L29/049 , A61M25/0009 , B32B1/08 , B32B7/12 , B32B27/08 , B29C48/09 , B32B2250/242 , B32B2270/00 , B32B2307/538 , B32B2307/54 , B32B2307/732 , B32B2535/00 , B32B2597/00
摘要： The disclosure provides tubes including a blend of two or more polyethylenes. For example, the blend can comprise at least 80% by weight of one or more of LLDPE, LDPE, MDPE, and HDPE, and no more than 20% by weight of UHMWPE. Such tubes can have low average wall thicknesses, e.g., 0.1 mm or less, rendering them suitable for use as catheter liners.
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公开(公告)号：US20240033474A1
公开(公告)日：2024-02-01
申请号：US18487274
申请日：2023-10-16
发明人： Susheel DESHMUKH
CPC分类号： A61M25/0045 , B29C48/09 , B29C48/0021 , A61F2/2436 , A61F2/966 , A61L29/049 , A61M25/0009 , B29L2031/7542
摘要： A catheter shaft includes an inner layer defining an innermost circumferential surface of the catheter shaft and defining a lumen of the catheter shaft, and an outer layer defining an outermost circumferential surface of the catheter shaft. The inner layer is formed by a first polymer having a first durometer and a first melting temperature. The outer layer is formed by alternating first and second segments of the first polymer and a second polymer, respectively, that alternate in a circumferential direction. The second polymer has a second durometer softer than the first durometer and a second melting temperature lower than the first melting temperature. Each segment of the alternating first and second segments extend in an axial direction for substantially an entire length of the catheter shaft. A method of forming the catheter shaft via extrusion is also disclosed.
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