Hemostasis Device With Inflatable Compression Member
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Solution Overview
Problem
Current hemostasis devices for vascular access puncture sites, particularly in the distal radial artery, often require manual compression, which can be inefficient and may lead to significant blood loss before hemostasis is achieved.
Innovation Solution
A hemostasis device comprising adjustable bands and an inflatable compression member that can be securely fastened around the hand or foot to apply controlled pressure over the puncture site, facilitating quicker hemostasis through adjustable angles and materials like hook-and-loop mechanisms for securement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual compression is used for hemostasis at vascular access puncture sites, then the device complexity is reduced, but the time to achieve hemostasis increases and blood loss increases
Solution Approach 1:
The compression member is pre-positioned at the puncture site before needle insertion, and the bands are pre-adjusted to the patient's anatomy. This preliminary preparation allows immediate compression upon puncture, eliminating the need for manual compression setup and reducing time to achieve hemostasis while maintaining relatively simple device structure
Solution Approach 2:
The device automatically maintains compression pressure through the elastic rebound of the compression member and the self-adjusting nature of the bands. The system serves itself by maintaining hemostatic pressure without requiring continuous manual intervention, thereby reducing time to achieve and maintain hemostasis while keeping the device structure simple
2Device complexity
If manual compression is used for hemostasis, then the device complexity is reduced, but blood loss increases
Solution Approach 1:
The compression member is pre-positioned and pre-adjusted to apply immediate pressure at the puncture site, preventing blood loss from the moment of needle insertion. This preliminary setup eliminates the delay inherent in manual compression, reducing blood loss while maintaining simple device structure
Solution Approach 2:
The compression member acts as an intermediary between the bands and the puncture site, providing consistent mechanical pressure to seal the puncture. This intermediary mechanism ensures reliable hemostasis with minimal blood loss while keeping the overall device structure relatively simple
3Reliability
If adjustable bands and inflatable compression member are used, then hemostasis effectiveness is improved, but device complexity increases
Solution Approach 1:
The device is divided into distinct functional segments: adjustable bands for positioning, an inflatable compression member for applying pressure, and a sealing mechanism. This segmentation allows each component to be optimized for its specific function, improving hemostasis effectiveness while keeping the overall device structure manageable through modular design
Solution Approach 2:
The compression member is designed to be inflatable and adjustable, allowing dynamic adaptation to different puncture sites and patient anatomies. This dynamic capability improves hemostasis effectiveness by providing customizable pressure and positioning, while the adjustability features are integrated in a way that maintains reasonable device complexity
4Loss of substance
If compression is applied to achieve hemostasis, then blood loss is reduced, but patient comfort may be compromised
Solution Approach 1:
The compression force is concentrated locally at the puncture site through the compression member, rather than applying diffuse pressure across a large area. This localized compression minimizes blood loss at the critical puncture point while reducing discomfort in surrounding tissues, thereby improving patient comfort while maintaining effective hemostasis
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
The device effectively reduces blood loss and accelerates hemostasis by providing consistent, adjustable compression directly over the puncture site, enhancing procedural efficiency and patient comfort.
Implementation Method 1
an inflatable compression member that can be securely fastened around the hand or foot to apply controlled pressure over the puncture site
Implementation Method 2
materials like hook-and-loop mechanisms for securement
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 hand, wrist, or foot, is disclosed. The hemostasis device may comprise a plurality of bands used to position and maintain a compression member over the puncture site. The hemostasis device may also comprise an inflation port in fluid communication with an inflatable bladder.