Medtronic Minimed, Inc.

Guangping Zhang

Sarnath Chattaraj

Kiem H Dang

Poonam S Gulati

Hsi Chung Fusselman

Lance P Hoffman

Afshin Bazargan

Anuradha Biswas Bhatia

Matthew William Yavorsky

Akhil Srinivasan

Maria C LoVerme

Michael E Miller

Andrea Varsavsky

Raghavendhar Gautham

Mohsen Askarinya

R Marie Tieck

Ashwin K Rao

Daniel E Pesantez

Melissa Tsang

Chi-En Lin

Quyen Ong

Xin Heng

Inthirai Somasuntharam

Michael N Missaghi

Evan Anselmo

Jia Yao

Dhivya Sridhar

Jinghua Chen

Ariel Reider

Carlos E Maldonado

Valerie Chen

Ling Jiang

Zhiwu Fang

Hsi C Fusselman

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.

Methods and systems for inhibiting foreign-body responses in diabetic patients

The invention provides amperometric analyte sensor systems comprising one or more electrodes designed to monitor in vivo levels of 3-hydroxybutyrate (and optionally glucose as well) in order to facilitate the management of diabetic ketoacidosis. The invention further includes compositions, elements and methods useful with such amperometric analyte sensor systems.

Sensors for 3-hydroxybutyrate detection

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.

Medication infusion components and systems

Embodiments of the invention provide optimized polymeric surfaces adapted for use with implantable medical devices as well as methods for making and using such polymeric surfaces. These polymer surfaces have a constellation of features that function to inhibit or avoid an inflammatory immune response generated by implantable medical devices. Typical embodiments of the invention include an implantable glucose sensor used in the management of diabetes having a polymer surface with the disclosed constellation of features.

Implantable polymer surfaces exhibiting reduced in vivo inflammatory responses

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.

Combined analyte sensor and infusion set

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.

Fluid conduit assembly with gas trapping filter in the fluid flow path

Medical devices and methods and apparatuses for identifying fluids in a conduit of a device are provided. An exemplary medical device includes a reservoir for holding a fluid and a conduit for dispensing the fluid from the reservoir. Further, the medical device includes a spectroscopy device for examining the fluid.

Infusion devices and fluid identification apparatuses and methods

A medical device includes a hub and an adhesive patch coupled to the hub. The adhesive patch is to couple the hub to an anatomy. The adhesive patch defines an edge that extends along a perimeter of the adhesive patch. The medical device includes an anisotropic shim coupled to the adhesive patch along the perimeter of the adhesive patch proximate the edge to resist an uncoupling of the adhesive patch from the anatomy. The anisotropic shim has an inner periphery spaced apart from an outer periphery and the anisotropic shim is locally rigid between the inner periphery and the outer periphery.

Medical device with adhesive patch longevity

Apparatuses and methods for identifying an infusate in a reservoir of an infusion device and systems for use in filling fluid delivery devices are provided. An exemplary apparatus for identifying an infusate in a reservoir of an infusion device includes a chamber in selective fluid communication with the reservoir. Further, the apparatus includes an indicator located in the chamber. The indicator exhibits a visual change when contacted by an infusate. The apparatus also includes a detector arrangement to identify the infusate by detecting the visual change in the indicator. An exemplary detector arrangement may include a camera to capture an image of the infusate and indicator in the chamber, and an identifier element to compare image data to a library of stored image data.

Apparatuses, systems, and methods for identifying an infusate in a reservoir of an infusion device

An infusion set for use with a fluid infusion device having a fluid reservoir includes a cannula that provides a fluid flow path and a first housing. The first housing includes an articulation member coupled to the cannula. The articulation member is pivotable relative to the first housing to move the cannula relative to the first housing. The first housing is coupled to a fluid supply line to provide a fluid to the cannula, and the fluid supply line is to be coupled to the fluid reservoir to receive the fluid. The infusion set includes a second housing uncoupled from the first housing that surrounds the first housing and receives a portion of the fluid supply line.

Infusion set with pivoting metal cannula and strain relief

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.

Growing community of inventors

Calabasas, CA, United States of America

Guangping Zhang