Expandable Basket Capture and Tissue Irrigation for Heart Pump Implantation
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Solution Overview
Problem
During heart pump implantation, particulates released from coring a patient's heart tissue increase the risk of stroke, necessitating improved methods and systems for irrigating, capturing, and removing these particulates.
Innovation Solution
A method and system involving a removable particulate capture device with an expandable basket and a tissue irrigating device are used to capture and remove particulates during heart pump implantation, utilizing an expandable basket movable between collapsed and expanded configurations, and a removable tissue irrigating device with irrigation conduits to disperse fluid and remove particulates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a coring procedure is performed to implant a VAD component into the heart, then the VAD can be successfully implanted to treat heart failure, but particulates are released into the heart which increases the risk of stroke
Solution Approach 1:
A removable particulate capture device is introduced as an intermediary between the coring procedure and the heart cavity. This device captures particulates released during coring before they can enter the heart and cause stroke, while still allowing the coring procedure to complete successfully for VAD implantation.
Solution Approach 2:
The harmful particulates are extracted from the system by capturing them in the removable capture device. The device is inserted, particulates are captured during and after coring, and then the device with captured particulates is removed from the heart through the cored opening, taking the harmful substances out of the patient's body.
2Reliability
If an expandable basket is used to capture particulates, then particulate capture effectiveness is improved, but the device complexity increases
Solution Approach 1:
The capture device uses an expandable basket that transitions between collapsed and expanded configurations. The basket is collapsed during insertion through the cored opening, then expanded within the heart to capture particulates, and finally collapsed again for removal. This dynamic configuration change allows the device to perform its capture function effectively while maintaining ease of insertion and removal.
3Object-affected harmful factors
If irrigation is performed to remove particulates, then stroke risk is reduced, but the procedure time and fluid management complexity increase
Solution Approach 1:
The removable particulate capture device is inserted into the heart before the coring procedure begins. This preliminary placement allows the device to be ready to capture particulates as soon as they are released during coring, eliminating the need for separate irrigation steps to remove particulates after the fact. The capture action happens concurrently with or immediately following coring.
Data Source
AI summary
The invention relates generally to methods and systems for irrigating particulates during heart pump implantation, and more specifically relates to irrigating and removing particulates that may be released when coring a patient's heart tissue. A method of irrigating particulates during blood pump implantation includes inserting a removable tissue irrigating device into a patient's heart. The removable tissue irrigating device includes a delivery tube and an irrigation conduit extending through the delivery tube. The irrigation conduit is extended out of an opening in the delivery tube to a deployed position from a stored position. The irrigation conduit is substantially disposed within the delivery tube when in the stored position and has a distal portion protruding out of the delivery tube when in the deployed position. Fluid is dispersed from the irrigation conduit into the patient's heart to remove particulates released during and/or after a coring procedure.