Hemostatic Device Valve Fluid Channeling
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Solution Overview
Problem
Current methods for controlling blood loss after medical procedures, such as cardiac catheterizations, often rely on manual pressure, which can be inefficient and prolonged, posing risks to patients.
Innovation Solution
A hemostatic device comprising a locator device with a valve and an injection tube is used to channel fluids for sealing vessel punctures, where a first fluid is used to position the device and a second fluid, such as gelatin, is injected to facilitate sealing, reducing the time required for hemostasis and ambulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual pressure is applied to control blood loss, then hemostasis can be achieved, but the time required for hemostasis is prolonged and patient ambulation is delayed
Solution Approach 1:
The locator device is advanced into the vessel before the actual sealing procedure to establish proper positioning and access. This preliminary action ensures that when the second fluid (gelatin) is injected, the device is already in the optimal position for rapid sealing, thereby reducing the overall time to achieve hemostasis while maintaining effectiveness
Solution Approach 2:
The device utilizes fluid dynamics by channeling a first fluid through the locator device for positioning, then injecting a second fluid (gelatin) through the injection tube to seal the puncture. This hydraulic approach enables rapid sealing compared to manual pressure by delivering sealing material directly to the puncture site through controlled fluid injection
2Loss of time
If a hemostatic device with multiple components is used to seal vessel punctures rapidly, then time to hemostasis is reduced, but device complexity increases
Solution Approach 1:
The injection tube is coupled to the locator device, merging two functions (positioning and sealing) into a single integrated device. This combination eliminates the need for separate positioning and sealing devices, reducing overall system complexity while enabling rapid hemostasis through coordinated action of the integrated components
Solution Approach 2:
The locator device serves multiple functions: it acts as both a positioning tool (by being advanced into the vessel and channeling first fluid) and as a delivery system for the sealing agent (by housing the injection tube that delivers second fluid). This multi-functionality reduces the number of separate devices needed while achieving rapid sealing
Data Source
AI summary
A hemostatic device is provided for sealing a puncture of a vessel. The hemostatic device includes a locator device and an injection tube coupled to the locator device. The locator device includes a device valve that is actuatable to selectively restrict access to a portion of the locator device. The hemostatic device is advanced into the vessel until a first fluid is channeled through the locator device. The device valve is actuated to selectively restrict the first fluid from being channeled through the locator device. A second fluid is injected through the injection tube to facilitate sealing a puncture of the vessel. The hemostatic device is withdrawn from the vessel.