Electro-mechanical resuscitating apparatus
Inventors
PASUPULETI, Gautham • PASUPULETI, Adithya • MOHAN, Roshan
Assignees
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Publication Number
US-11207481-B2
Publication Date
2021-12-28
Expiration Date
Abstract
The present invention is a mechanical ventilation device which delivers intermittent positive pressure ventilation by compressing AMBU. As the device uses existing AMBU for the ventilation, it is intended to automate the process of hand ventilation and will hence keep the costs and skill requirement low. Due to usage of the AMBU and simple mechanics, it is easy to manufacture and maintain the device.
Core Innovation
The invention provides an electro-mechanical resuscitating apparatus for controlling expansion and compression of a self-inflating bag. The apparatus includes a first supporting arm and a second supporting arm, each having a coupling end and a placement end, with a length between the coupling end and the placement end conforming to at least a portion of an outer surface area of the self-inflating bag. A first coupling arm and a second coupling arm are connected while maintaining a predetermined distance across respective lengths, and the first and second supporting arms are rotatably fixed to respective ends of the coupling arms.
A first driving mechanism and a second driving mechanism are coupled to a first shaft and a second shaft, respectively, where the front end of each shaft is coupled to the coupling end of the corresponding supporting arm. A controller communicatively coupled to the driving mechanisms controls the speed and direction of movement of the first shaft and the second shaft. Actuation in a first direction moves the placement ends against the surface of the self-inflating bag to cause compression, while actuation in a second direction moves the placement ends to retract, causing retraction of the self-inflating bag.
To reduce frictional forces, each placement end is adapted to support a plurality of rollers between the outer surface of the self-inflating bag and the plurality of rollers. In some configurations, the plurality of rollers have a silicone coating on respective outer surfaces. Additional configurations include holding arms that support the self-inflating bag and a spring loaded safety mechanism causing the holding arms to remain in a locked state while supporting the self-inflating bag.
Claims Coverage
The document includes three independent claims that share a core architecture of two rotatable supporting arms driven by first and second shafts under controller control to compress and retract a self-inflating bag, together with friction reduction using rollers. Across the independent claims, the inventive features are: two-arm two-shaft electro-mechanical compression/retraction control, roller-based friction reduction, optional holding arms with spring loaded safety mechanism, and silicone-coated rollers.
Two supporting arms and coupling arms conforming to bag surface
A first supporting arm and a second supporting arm, each with a coupling end and a placement end, wherein the length between the coupling end and the placement end conforms to at least a portion of an outer surface area of the self-inflating bag; a first coupling arm and a second coupling arm connected while maintaining a predetermined distance across respective lengths; and the first supporting arm and second supporting arm rotatably fixed to respective ends of the coupling arms.
Controller-driven bidirectional shaft actuation for compression and retraction
A first driving mechanism and a second driving mechanism coupled to a first shaft and a second shaft, with a controller communicatively coupled to the driving mechanisms and configured to control the speed and direction of movement of the first shaft and the second shaft, so that actuation in a first direction causes compression and actuation in a second direction causes retraction of the self-inflating bag.
Rollers at placement ends to reduce frictional forces
The placement end of each supporting arm is adapted to support a plurality of rollers to reduce frictional forces between the outer surface of the self-inflating bag and the plurality of rollers.
Holding arms and spring loaded safety mechanism in locked state
At least one of a first holding arm and a second holding arm rotatably affixed near the coupling arms, wherein the self-inflating bag is supported on the holding arms, and a spring loaded safety mechanism causing the holding arms to remain in a locked state while supporting the self-inflating bag.
Silicone-coated roller outer surfaces
The plurality of rollers have a silicone coating on respective outer surfaces.
Overall, the independent claims cover an electro-mechanical resuscitating apparatus with two rotatable supporting arms mounted via coupling arms, first and second shafts driven in controlled directions by a controller to compress and retract a self-inflating bag, with rollers to reduce friction. Additional claim features include holding arms with a spring loaded safety mechanism and silicone-coated roller outer surfaces.
Stated Advantages
Reduces frictional forces between the outer surface of the self-inflating bag and the plurality of rollers.
Spring loaded safety mechanism keeps holding arms in a locked state while supporting the self-inflating bag.
Documented Applications
Not explicitly described in patent.
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