Low-cost pulsatile cardiac assist device with compliant input chamber

Area of Science:

• Biomedical Engineering
• Cardiovascular Devices
• Medical Technology

Background:

• Ventricular failure necessitates immediate support to maintain patient survival.
• Short-term mechanical circulatory support is crucial for evaluating transplant eligibility or long-term VAD options.
• Existing devices may present cost or complexity barriers in emergency scenarios.

Purpose of the Study:

• To introduce a novel, low-cost pulsatile ventricular assist device (VAD) designed for short-term applications.
• To address the need for accessible and effective temporary circulatory support in emergency ventricular failure.
• To present a cost-effective VAD solution by utilizing simplified components like clip valves.

Main Methods:

• The device features a pneumatic tubular blood chamber for pulsatile flow.
• Incorporation of a compliant input chamber to enhance pump filling efficiency.
• Utilization of clip valves for cannulae and overall system control via a computerized console.

Main Results:

• The proposed VAD offers a cost-effective alternative for short-term cardiac support.
• The design facilitates maintenance of ventricular function during critical patient assessment.
• The use of clip valves significantly reduces the cost of the disposable components.

Conclusions:

• The developed low-cost pulsatile VAD is a viable option for emergency ventricular failure.
• This device provides essential temporary hemodynamic support, improving patient management options.
• The innovative design, particularly the clip valves, enhances affordability and accessibility of VAD therapy.