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Related Parties (Details narrative) - USD ($)
$ / shares in Units, $ in Millions
 1 Months Ended 3 Months Ended
Jan. 09, 2023
Jan. 31, 2024
Mar. 21, 2023
Mar. 31, 2024
Dec. 31, 2023
Common stock shares issued       7,573,403 7,026,627
Business Combination, Description Mr. Jenkins and his affiliates received 1,325.838 shares of Series X Convertible Preferred Stock in the merger, and Mr. Jenkins’ adult children received 1,284.344 shares of Series X Convertible Preferred Stock in the merger, all in exchange for their equity interests in Old Catheter in accordance with the merger exchange ratio        
Convertible Promissory Notes $ 25.1        
Convertible Notes 7,856,251        
Interest accrued $ 13.9        
Accrued expenses $ 1.4        
Options to purchase 144,169,000        
Mr. Jenkins [Member]          
Common stock shares issued     991,828,000    
Accrued expenses $ 1.1        
Options to purchase 144,169,000        
Number of options 140,816,000        
Remaining number of options 3,353,000        
Conversion of stock description     conversion of 991.828 shares of Series X Convertible Preferred Stock, and 235,320 shares of common stock to his adult children upon conversion of 235.320 shares of Series X Convertible Preferred S    
Exercise price $ 0.59        
Remaining number of options exercise price $ 2.02        
Margrit Thomassen [Member]          
Received options to purchase common stock   25,000   16,764  
Option exercise price   $ 0.40   $ 0.59  
Vested percentage   20.00%      
Vested period   5 years