摘要:
A reusable analyte sensor site for use with a replaceable analyte sensor for determining a level of an analyte includes a site housing material and a resealable insertion site coupled to one end of the site housing material. Preferably, the site housing material is formed to have an interior cavity with an opening. The site housing material is selected to promote tissue ingrowth and vascularization, and yet be free of tissue ingress. Also, the site housing material permits the analyte to pass through the site housing material to the interior cavity to permit measurement by the replaceable analyte sensor. The resealable insertion site provides a for inserting the replaceable analyte sensor into the interior cavity of the site housing material.
摘要:
A reusable analyte sensor site for use with a replaceable analyte sensor for determining a level of an analyte includes a site housing and a resealable insertion site coupled to one end of the site housing. Preferably, the site housing is formed to have an interior cavity, and includes an outer membrane made of a material selected to promote vascularization and having a first pore size, and an inner membrane made of a material selected to be free of tissue ingress. Also, the site housing permits the analyte to pass through the site housing to the interior cavity to permit measurement by the replaceable analyte sensor. The resealable insertion site is provided for inserting the replaceable analyte sensor into the interior cavity of the site housing.
摘要:
An apparatus for sensing multiple parameters includes an implantable housing and a plurality of implantable sensors disposed within the implantable housing. The plurality of implantable sensors sense parameters in a patient, such as biological or physiological parameters, for example, and each responds to an analyte in the patient. The plurality of implantable sensors may include, but is not limited to, electrochemical, potentiometric, current and optical sensors.
摘要:
A reusable analyte sensor site for use with a replaceable analyte sensor for determining a level of an analyte includes a site housing and a resealable insertion site coupled to one end of the site housing. Preferably, the site housing is formed to have an interior cavity, and includes an outer membrane made of a material selected to promote vascularization and having a first pore size, and an inner membrane made of a material selected to be free of tissue ingress. Also, the site housing permits the analyte to pass through the site housing to the interior cavity to permit measurement by the replaceable analyte sensor. The resealable insertion site is provided for inserting the replaceable analyte sensor into the interior cavity of the site housing.
摘要:
An analyte sensor and systems for determining analyte levels in a user's body. The analyte sensor and systems are adapted to be used with single dose medication devices and include a communication system to transmit the communications from the analyte sensor to the user to notify the user of an estimated amount of fluid to deliver to the user's body. More particularly, these apparatuses and methods for use are for providing convenient monitoring of blood glucose levels in determining the appropriate amount of insulin to deliver.
摘要:
Embodiments of the invention provide analyte sensors having stabilized coating compositions and methods for making and using such sensors. Illustrative embodiments include electrochemical glucose sensors having stabilized glucose oxidase coatings.
摘要:
An analyte sensor and systems for determining analyte levels in a user's body. The analyte sensor and systems are adapted to be used with single dose medication devices and include a communication system to transmit the communications from the analyte sensor to the user to notify the user of an estimated amount of fluid to deliver to the user's body. More particularly, these apparatuses and methods for use are for providing convenient monitoring of blood glucose levels in determining the appropriate amount of insulin to deliver.
摘要:
A method and apparatus for enhancing the integrity of an implantable sensor. Voids formed between an outer tubing and a sensor substrate or spacing element may be back-filled with a curable, implantable material, minimizing the extent to which unwanted fluids diffuse within the sensor. An enzyme or protein matrix pellet below the sensor window may be pre-treated with a reducing agent to enhance its bond stability, and to reduce undesired swelling that may cause the sensor window to detach or leak. The bonding between the enzyme pellet and a hydrogel layer may be reinforced by application of an intervening bonding layer of a protein material, such as human serum albumin (HSA). The size of the window may be minimized by minimizing the size of an underlying electrode, providing reduced flux and lengthening sensor. A coating may be deposited on the surface of the sensor leads, providing stiffening and lubrication.
摘要:
An apparatus for sensing multiple parameters includes an implantable housing and a plurality of implantable sensors disposed within the implantable housing. The plurality of implantable sensors sense parameters in a patient, such as biological or physiological parameters, for example, and each responds to an analyte in the patient. The plurality of implantable sensors may include, but is not limited to, electrochemical, potentiometric, current and optical sensors.
摘要:
A method and apparatus for enhancing the integrity of an implantable sensor. Voids formed between an outer tubing and a sensor substrate or spacing element may be back-filled with a curable, implantable material, minimizing the extent to which unwanted fluids diffuse within the sensor. An enzyme or protein matrix pellet below the sensor window may be pre-treated with a reducing agent to enhance its bond stability, and to reduce undesired swelling that may cause the sensor window to detach or leak. The bonding between the enzyme pellet and a hydrogel layer may be reinforced by application of an intervening bonding layer of a protein material, such as human serum albumin (HSA). The size of the window may be minimized by minimizing the size of an underlying electrode, providing reduced flux and lengthening sensor. A coating may be deposited on the surface of the sensor leads, providing stiffening and lubrication.