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Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Government grant revenue $ 25,000 $ 25,000 $ 100,000 $ 45,000
Operating expenses:            
Research and development 393,000 432,000 827,000 938,000 1,608,000 2,036,000
General and administrative 610,000 569,000 1,600,000 1,402,000 2,992,000 4,079,000
Total operating expenses 1,003,000 1,001,000 2,427,000 2,340,000 4,600,000 6,115,000
Loss from operations (1,003,000) (976,000) (2,427,000) (2,315,000) (4,500,000) (6,070,000)
Other income (expenses)            
Loss on change in the fair value of related party Tasly convertible debt (57,000) (15,000) (118,000) (11,000) (311,000) (22,000)
Interest expense (1,289,000) (1,081,000) (2,519,000) (2,161,000) (4,424,000) (4,283,000)
Other income 1,000 1,000 6,000 5,000 94,000
Total other (expense) income, net (1,345,000) (1,095,000) (2,637,000) (2,166,000) (4,730,000) (4,211,000)
Income tax provision        
Net loss (income) and comprehensive loss $ (2,348,000) $ (2,071,000) $ (5,064,000) $ (4,481,000) $ (9,230,000) $ (10,281,000)
Net (loss) income per share, basic (in Dollars per share) $ (0.42) $ (0.37) $ (0.9) $ (0.8) $ (1.65) $ (1.84)
Net (loss) income per share, Diluted (in Dollars per share) $ (0.42) $ (0.37) $ (0.9) $ (0.8) $ (1.65) $ (1.84)
Weighted-average common shares outstanding, basic (in Shares) 5,604,651 5,601,651 5,604,651 5,601,651 5,604,651 5,600,741
Weighted-average common shares outstanding, Diluted (in Shares) 5,604,651 5,601,651 5,604,651 5,601,651 5,604,651 5,600,741
Northview Acquisition Corporation            
Operating expenses:            
Loss from operations $ (967,084) $ (253,130) $ (1,550,665) $ (723,971) $ (1,351,038) $ (1,508,683)
Other income (expenses)            
Interest income earned on cash held in Trust Account 15,159 108,520 95,084 225,184 425,416 2,248,538
Change in fair value of convertible promissory note (1,154,729) 66,021 (1,380,059) 126,098 (7,165,953) 177,697
Change in fair value of securities purchase agreement (170,391) (193,878)    
Change in fair value of warrant liabilities (5,917,445) (295,872) (6,265,530) (800,595) (539,531) 701,148
Total other (expense) income, net (7,227,406) (121,331) (7,744,383) (449,313) (7,280,068) 3,127,383
(Loss) income before provision for income tax (8,194,490) (374,461) (9,295,048) (1,173,284) (8,631,106) 1,618,700
Income tax provision (2,386) (23,026) (21,738) (44,480) (80,513) (456,790)
Net loss (income) and comprehensive loss $ (8,196,876) $ (397,487) $ (9,316,786) $ (1,217,764) $ (8,711,619) $ 1,161,910
Net (loss) income per share, basic (in Dollars per share) $ (1.53) $ (0.07) $ (1.66) $ (0.2) $ (1.47) $ 0.12
Net (loss) income per share, Diluted (in Dollars per share) $ (1.53) $ (0.07) $ (1.66) $ (0.2) $ (1.47) $ 0.12
Weighted-average common shares outstanding, basic (in Shares) 5,193,750 5,193,750 5,193,750 5,193,750 5,193,750 5,193,750
Weighted-average common shares outstanding, Diluted (in Shares) 5,193,750 5,193,750 5,193,750 5,193,750    
Formation and operating costs $ 967,084 $ 253,130 $ 1,550,665 $ 723,971 $ 1,351,038 $ 1,508,683
Common stock subject to possible redemption | Northview Acquisition Corporation            
Other income (expenses)            
Net (loss) income per share, basic (in Dollars per share) $ (1.53) $ (0.07) $ (1.66) $ (0.2) $ (1.47) $ 0.12
Net (loss) income per share, Diluted (in Dollars per share) $ (1.53) $ (0.07) $ (1.66) $ (0.2) $ (1.47) $ 0.12
Weighted-average common shares outstanding, basic (in Shares) 146,440 738,075 412,717 783,151 747,644 4,866,356
Weighted-average common shares outstanding, Diluted (in Shares) 146,440 738,075 412,717 783,151 747,644 4,866,356