Mobile infusion device
Inventors
Barrelli, Aharon Ronny • Bailey, Kevin • Bailey, Matthew • Sayal, Gautam • Dickie, Robert
Assignees
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Publication Number
US-8715236-B2
Publication Date
2014-05-06
Expiration Date
Abstract
Various embodiments are described herein for a mobile infusion device that does not use gravity to expel fluid from a bag. The device has a housing with a central chamber connected with an opening to receive a portion of the bag during use. A rotation assembly is coupled to the housing and includes at least one roller located within the central chamber and a spring mechanism operatively coupled to the at least one roller to rotate it to move the bag and apply a force to a portion of the bag to expel fluid therefrom during use. A control mechanism is operatively coupled to the rotation assembly and has a control assembly to control rotation of the rotation assembly and a user interface coupled to the control assembly to allow a user to select a mode of operation for the device. The spring mechanism is recharged in standby mode. Various mechanisms can be used in various embodiments to improve functionality such as a gearing mechanism.
Core Innovation
The invention relates to a mobile infusion device that does not use gravity to expel fluid from a bag. The device includes a housing having a first portion shaped to define a central chamber and a second portion shaped to define a first opening that is in communication with the central chamber and adapted to receive a portion of the bag during use. A spring-driven rotation assembly is mounted at a fixed location within the housing and operates on a portion of the bag to expel fluid during use.
The rotation assembly includes first and second members located within the central chamber, positioned in opposition to one another, or at least one roller within the central chamber with a drive member operatively coupled to the roller. The spring mechanism is operatively coupled to the first member, or a drive spring is operatively coupled to the drive member, to rotate the member or roller so that the bag is moved and a force is applied to expel fluid from the bag during use.
The device further includes a control mechanism operatively coupled to the rotation assembly, with a user interface that allows a user to select one of a start mode and a stop mode, and in additional forms a standby mode. The control assembly allows rotation and/or recharging of the spring in an unlocked condition and prevents rotation and/or recharging in a locked condition, and the spring mechanism is rechargeable in standby mode for future use. The opening, central chamber, and internal members are dimensioned with a length long enough to accommodate bags of various sizes.
Claims Coverage
The independent claims identified are clm-00001, clm-00027, clm-00035, and clm-00036. Across these independent claims, the main inventive features include the gravity-free spring-driven rotation or roller mechanism, the housing opening and central chamber arrangement for receiving a portion of the bag, and a control mechanism with start/stop and, in some claims, standby modes plus lock/unlock recharging behavior. Each independent claim also includes a structural length requirement sized to accommodate bags of various sizes.
Gravity-free expelling mobile infusion housing with central chamber and bag-opening
A mobile infusion device that does not use gravity to expel fluid from a bag, wherein the housing includes a first portion shaped to define a central chamber and a second portion shaped to define a first opening in communication with the central chamber and adapted to receive a portion of the bag during use.
Spring-driven rotation assembly applying force to move the bag
A rotation assembly mounted at a fixed location in the housing, the rotation assembly including first and second members mounted in opposition to one another located within the central chamber and a spring mechanism operatively coupled to the first member to rotate the first member in order to move the bag between the first and second members thereby applying a force to a portion of the bag to expel fluid from the bag during use.
User interface controlling start and stop modes of rotation
A control mechanism operatively coupled to the rotation assembly, with a control assembly to control rotation of the rotation assembly and a user interface coupled to the control assembly to allow a user to select one of a start mode and a stop mode for the mobile infusion device during use.
Uninfused by gravity rotation with roller, drive spring, and drive member
A rotation assembly coupled to the housing, including at least one roller located within the central chamber, a drive member operatively coupled to the at least one roller, and a drive spring operatively coupled to the drive member, the drive spring and the drive member being configured to rotate the at least one roller in order to move the bag and apply a force to a portion of the bag to expel fluid from the bag during use.
Unlocked and locked control assembly permitting rotation and/or recharging
A control mechanism operatively coupled to the rotation assembly, with a control assembly that can be actuated between an unlocked position and a locked position and a user interface for allowing a user to control the actuation of the control assembly, the control assembly allowing the drive member and the at least one roller to rotate or the drive spring to be recharged when the control assembly is in the unlocked position and preventing rotation of the drive member and the at least one roller or recharging of the drive spring when the control assembly is in the locked position.
Removably coupled pivotable legs forming open stand and closed protective frame
A first pair of legs removably coupled to a first end of the housing and a second pair of legs removably coupled to a second end of the housing, the legs being pivotable between an open position to allow the device to stand and a closed position to allow the device to be carried and to form a protective frame for the device.
Handle near user interface for one hand holding and control
A handle disposed along a top portion of the housing and a user interface located near the handle and coupled to the control assembly, the user interface being adapted to allow a user to hold and control the device using one hand and to allow the user to select one of a start mode, a stop mode and a standby mode for the mobile infusion device during use.
Across the independent claims, the core claim coverage centers on a gravity-free mobile infusion device that uses a spring-driven rotation assembly or roller-based rotation assembly to apply force to an infusion bag in a central chamber. Each independent claim includes a housing with a central chamber and an opening adapted to receive a portion of the bag, and includes a control mechanism with a user interface for start/stop modes, and in one independent claim standby mode, plus a locked/unlocked control assembly that permits or prevents rotation and/or recharging. Structural length features are included to accommodate bags of various sizes.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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