US 12,251,250 B2
Longitudinal-positioning indicator and marking grid
Bradley Hammett, Sherman, TX (US); and Stephanie Hammett, Sherman, TX (US)
Filed by Bradley Hammett, Sherman, TX (US); and Stephanie Hammett, Sherman, TX (US)
Filed on Dec. 21, 2023, as Appl. No. 18/393,188.
Application 18/393,188 is a continuation of application No. 18/126,660, filed on Mar. 27, 2023, granted, now 11,857,144.
Application 18/126,660 is a continuation of application No. 17/142,645, filed on Jan. 6, 2021, granted, now 11,612,364, issued on Mar. 28, 2023.
Prior Publication US 2024/0122559 A1, Apr. 18, 2024
Int. Cl. A61B 90/00 (2016.01); A61B 6/04 (2006.01)
CPC A61B 6/0492 (2013.01) [A61B 90/39 (2016.02); A61B 2090/3966 (2016.02)] 19 Claims
OG exemplary drawing
 
1. A method for identifying a location for needle insertion into a patient, the method including:
identifying a target internal structure;
identifying, from a marking grid applied to the patient, a lateral positioning coordinate for the target internal structure;
identifying a longitudinal positioning coordinate for the target internal structure with reference to an auxiliary guideline of the marking grid, wherein:
the auxiliary guideline intersects an axis that coincides with a transverse plane that passes through the marking grid and the target internal structure,
the auxiliary guideline intersects the axis at a known angle, and
the longitudinal positioning coordinate is identified based on the lateral positioning coordinate and the known angle of the auxiliary guideline; and
determining the location for the needle insertion using the longitudinal-positioning coordinate and the lateral-positioning coordinate.