Inflatable Hemostasis Device for Controlled Foot Artery Compression
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Solution Overview
Problem
Existing methods for achieving hemostasis at vascular access puncture sites in the lower leg and foot, particularly in arteries like the anterior tibial, dorsalis pedis, and posterior tibial arteries, are inefficient and require significant manual effort, leading to potential blood loss and prolonged recovery times.
Innovation Solution
A hemostasis device comprising a body with adjustable coupling tabs, flexible bands for securement, and an inflatable compression member to apply controlled pressure to the puncture site, allowing for rapid and controlled hemostasis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If manual compression methods are used to achieve hemostasis at vascular access puncture sites, then hemostasis can be achieved, but significant manual effort is required and blood loss increases
Solution Approach 1:
The compression device is designed to maintain hemostasis automatically after initial application. The ratchet mechanism allows one-way adjustment of compression force without requiring continuous manual intervention, and the elastic biasing member maintains constant pressure on the puncture site throughout the healing process
Solution Approach 2:
The device employs an inflatable compression member that can be inflated to apply controlled compression force to the puncture site. This pneumatic mechanism provides consistent, adjustable pressure without requiring sustained manual effort, thereby reducing blood loss while easing operational burden
2Loss of time
If manual compression is applied to achieve hemostasis, then hemostasis is achieved, but recovery time is prolonged
Solution Approach 1:
The device applies compression force immediately upon inflation, preventing blood loss from the outset. The ratchet mechanism is pre-configured to maintain compression without requiring repeated manual adjustments, thereby accelerating recovery while minimizing ongoing manual intervention
Solution Approach 2:
The elastic biasing member automatically maintains compression force on the puncture site throughout the recovery period without requiring additional manual effort, thereby reducing both recovery time and ongoing operational requirements
3Loss of substance
If compression force is applied to achieve hemostasis, then blood loss is reduced, but control over compression force is insufficient
Solution Approach 1:
The compression force is made adjustable through the ratchet mechanism, which allows incremental increases in compression as swelling subsides. This dynamic adjustment capability reduces blood loss while preventing excessive compression that could compromise circulation, without requiring complex control systems
Solution Approach 2:
The device enables change in compression force parameters over time through the ratchet mechanism. The compression force can be increased incrementally by engaging additional ratchet teeth, allowing optimization of hemostasis while accommodating changes in tissue swelling and patient comfort needs
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates quick and controlled hemostasis at vascular access sites with reduced blood loss and minimal manual intervention, enhancing procedural efficiency and patient comfort.
Implementation Method 1
an inflatable compression member to apply controlled pressure to the puncture site
Data Source
AI summary
A hemostasis device configured to apply a compressive force to a puncture site of a patient's vessel, such as an artery of the foot, is disclosed. The hemostasis device may include a compression member having a plurality of tabs and an inflatable bladder. A plurality of bands may be used to position and maintain the compression member over the puncture site until hemostasis is achieved are releasably coupled to the plurality of tabs. A first band can wrap around the ankle, a second band can wrap around the foot, and a third band can extend between two toes or around a toe. The hemostasis device may also comprise an inflation port in fluid communication with the inflatable bladder.