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公开(公告)号：US11547811B2
公开(公告)日：2023-01-10
申请号：US16776040
申请日：2020-01-29
摘要： A fluid infusion device includes a housing having a reservoir chamber that receives a fluid reservoir. The fluid reservoir has a first end and a second end. The fluid infusion device includes a connector system having a first body section coupled to a second body section. The first body section defines a bore in communication with a chamber and a counterbore of the second body section to define a fluid flow path. The chamber of the second body section is in fluid communication with a vent subsystem defined through the second body section. The vent subsystem terminates in an outlet, and the vent subsystem is to direct gas in the fluid flow path through the second body section to the outlet. The fluid infusion device includes at least one ring disposed within the reservoir chamber that cooperates with the connector system to securely couple the connector system to the housing.
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公开(公告)号：US10589038B2
公开(公告)日：2020-03-17
申请号：US15140229
申请日：2016-04-27
摘要： A set connector system for venting a gas from a fluid reservoir of a fluid infusion device is provided. The set connector system includes a connector system having a first body section coupled to a second body section. The first body section defines a bore in communication with a chamber and a counterbore of the second body section to define a fluid flow path from the fluid reservoir. The chamber of the second body section is in fluid communication with a vent subsystem defined through the second body section. The vent subsystem terminates in an outlet, and the vent subsystem directs gas in the fluid flow path through the second body section to the outlet.
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公开(公告)号：US10517892B2
公开(公告)日：2019-12-31
申请号：US14512788
申请日：2014-10-13
发明人： Sarnath Chattaraj , Kiem H. Dang , Hsi Chung Fusselman , Poonam S. Gulati , Lance P. Hoffman , Guangping Zhang
摘要： Methods and devices are provided for reducing a diabetic patient's foreign body immune response, including infusion site-loss and/or occlusion. Such foreign body responses are associated with the treatment of the diabetic patient where the treatment requires subcutaneous implantation of a foreign body, such as a cannula or catheter. In certain embodiments of the invention, a response-inhibiting agent is administered to a patient at the site of cannula/catheter insertion, thereby facilitating delivery of insulin to the diabetic patient and mitigating site-loss and/or occlusion over a period of time.
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公开(公告)号：US10279126B2
公开(公告)日：2019-05-07
申请号：US14508934
申请日：2014-10-07
摘要： A fluid delivery system and a fluid conduit assembly suitable for use with the system are disclosed herein. The system includes a fluid infusion pump and a fluid conduit assembly coupled to the pump to deliver medication fluid to a user. The fluid conduit assembly includes a structure defining a flow path for the medication fluid, and a gas trapping filter coupled to the structure and positioned in the flow path. The gas trapping filter functions to filter particulates from the medication fluid and retain gas bubbles from the medication fluid.
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公开(公告)号：US11944784B2
公开(公告)日：2024-04-02
申请号：US16687481
申请日：2019-11-18
发明人： Guangping Zhang , Kiem H. Dang , Valerie Chen , Ling Jiang , Evan Anselmo , Zhiwu Fang , Sarnath Chattaraj
CPC分类号： A61M5/1723 , A61B5/14532 , A61M5/1413 , A61M5/14248 , A61M5/16836
摘要： Disclosed herein are combined devices and methods of manufacturing such combined devices. The combined devices disclosed herein include an analyte sensor including a sensor probe; an infusion set hub including a cannula; and a flexible base. The analyte sensor and infusion set hub are attached to the flexible base such that movement of one of the analyte sensor and the infusion set hub is substantially not transferred to the other one of the analyte sensor and the infusion set hub.
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公开(公告)号：US20220409777A1
公开(公告)日：2022-12-29
申请号：US17823388
申请日：2022-08-30
IPC分类号： A61L29/14 , A61K38/28 , A61K31/727 , A61L29/04 , A61M5/142 , A61M5/38 , A61K9/00 , A61M39/10 , A61M39/16
摘要： This invention pertains to systems and components useful for infusing medications such as insulin. Typically, the components are used to deliver insulin to a diabetic patient at a site of infusion over a period of time greater than 4 days. The system components typically comprise a cannula adapted for subcutaneous insertion into a diabetic patient. The system further comprises a fluid conduit adapted to deliver the insulin solution from a medication reservoir to the site of infusion and a depot in operable contact with the fluid conduit. The depot comprises selected materials including a site-loss mitigating agent (such as heparin) which inhibits inflammation at the site of infusion, and encapsulation of the cannula at the site of infusion. The site-loss mitigating agent is not premixed with the insulin, and instead is adapted to contact the insulin solution in the depot as the insulin solution flows from the medication reservoir to the site of infusion.
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公开(公告)号：US20220401644A1
公开(公告)日：2022-12-22
申请号：US17352154
申请日：2021-06-18
摘要： A cannula includes a tubular body having an axial dimension through which a flow channel extends. The tubular body has a first end for insertion into a subject, and a second end configured to be held within a base of a medical device. The tubular body has a first length portion extending along the axial dimension from the first end toward the second end. A second length portion extends along the axial dimension from the first length portion toward the second end, and has an outer dimension that flares outward to be larger than the outer dimension of the first length portion. The second length portion also has a tubing wall thickness that is greater than the tubing wall thickness of the first length portion.
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公开(公告)号：US20220031941A1
公开(公告)日：2022-02-03
申请号：US17499612
申请日：2021-10-12
摘要： This invention pertains to systems and components useful for infusing medications such as insulin. Typically, the components are used to deliver insulin to a diabetic patient at a site of infusion over a period of time greater than 4 days. The system components typically comprise a cannula adapted for subcutaneous insertion into a diabetic patient. The system further comprises a fluid conduit adapted to deliver the insulin solution from a medication reservoir to the site of infusion and a depot in operable contact with the fluid conduit. The depot comprises selected materials including a site-loss mitigating agent (such as heparin) which inhibits inflammation at the site of infusion, and encapsulation of the cannula at the site of infusion. The site-loss mitigating agent is not premixed with the insulin, and instead is adapted to contact the insulin solution in the depot as the insulin solution flows from the medication reservoir to the site of infusion.
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公开(公告)号：US20200164159A1
公开(公告)日：2020-05-28
申请号：US16776040
申请日：2020-01-29
摘要： A fluid infusion device includes a housing having a reservoir chamber that receives a fluid reservoir. The fluid reservoir has a first end and a second end. The fluid infusion device includes a connector system having a first body section coupled to a second body section. The first body section defines a bore in communication with a chamber and a counterbore of the second body section to define a fluid flow path. The chamber of the second body section is in fluid communication with a vent subsystem defined through the second body section. The vent subsystem terminates in an outlet, and the vent subsystem is to direct gas in the fluid flow path through the second body section to the outlet. The fluid infusion device includes at least one ring disposed within the reservoir chamber that cooperates with the connector system to securely couple the connector system to the housing.
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公开(公告)号：US10646649B2
公开(公告)日：2020-05-12
申请号：US15438601
申请日：2017-02-21
发明人： Guangping Zhang , Sarnath Chattaraj , Anuradha Biswas Bhatia , Maria C. LoVerme , Afshin Bazargan
IPC分类号： A61M5/172 , A61M39/20 , G01N21/3577 , G01N21/359 , G01N21/33
摘要： Medical devices and methods and apparatuses for identifying fluids in a conduit of a device are provided. An exemplary apparatus for identifying an infusate in a conduit of an infusion device includes a transmitter element for transmitting a beam of energy for interaction with the infusate. Further, the apparatus includes a receiver element for receiving a signal from the beam of energy after interaction with the infusate. Also, the apparatus includes an identifier element coupled to the receiver element for analyzing the signal to identify the infusate. The transmitter element and receiver element may form a spectroscopy device and may transmit and receive a beam of infrared light or near infrared light.
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