Recapitalization - Schedule of Common Stock to be issued of the Business Combination (Details) - Class A Common Stock [Member]	12 Months Ended
Dec. 31, 2025 shares
Schedule of Common Stock to be issued of the Business Combination [Member]
NVAC Public Shares, outstanding prior to the Business Combination	1,357
Less: Redemption of NVAC Class A common stock	(5)
Public shares of NVAC	1,352
NVAC Founder Shares, outstanding prior the Business Combination	53,780
NVAC Representative Shares converted to Class A Common shares	6,000
NVAC Shares from Rights converted to Class A common shares	25,300
Profusa Shares [Member]
Business Combination shares
Business combination shares	114,584
Issuance of shares in connection with Ascent Private Note [Member]
Business Combination shares
Business combination shares	38,691
Conversion of Notes into Shares [Member]
Business Combination shares
Business combination shares	197,098
Common Stock Immediately after the Business Combination [Member]
Business Combination shares
Business combination shares	436,805

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