# US 11,307,195 B2 · Impact blood splatters generation experimental apparatus capable of measuring applied force and method of generating impact blood splatters using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,307,195 B2 - Document ID: US11307195B2 - Status: Granted - Kind: B2 - Application number: 16/709,502 - Filed: 2019-12-10 - Published: 2021-05-06 - Granted: 2022-04-19 - Earliest claimed: 2019-11-06 - Assignees: Republic of Korea (Management National Forensic Service Director, Ministry of Public Administration and Security) - Applicants: Republic of Korea(National Forensic Service Director Ministry of Public Administration and Security) - Inventors: Nam Kyu Park; Jae Mo Goh; Jin Pyo Kim; Young Il Seo; Eun Ah Joo; Je Hyun Lee; Sang Yoon Lee; Dong A Lim; Kyung Mi Kim - Web page: https://patentgrep.com/patent/US11307195B2 ## CPC - G01N 11/00: Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties - G01N 33/49: Blood {(chemical methods for determining blood cell populations G01N33/5094; chemical analysis of blood groups or blood types G01N33/80)} - G01N 3/307: generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic means - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) ## Abstract An impact blood splatters generation experimental apparatus capable of measuring an applied force includes: a hammer including a rod-shaped body portion, a head portion formed at one end of the body portion, and a striking portion formed on one side of the head portion; a housing receiving a certain amount of blood thereon and including a striking surface on which the striking portion may strike; a tensile force gauge attached to an outer surface of the housing; an elastic member having one end connected to the body portion and the other end connected to the tensile force gauge; and a display unit displaying a force applied to the hammer, the force being measured by the tensile force gauge, when a user lifts the hammer to strike the striking surface. ## Claims ### Claim 1 An impact blood splatters generation experimental apparatus capable of measuring an applied force, the impact blood splatters generation experimental apparatus comprising: a hammer comprising a rod-shaped body portion, a head portion formed at one end of the body portion, and a striking portion formed on one side of the head portion; a housing receiving a certain amount of blood thereon and comprising a striking surface on which the striking portion may strike; a tensile force gauge attached to an outer surface of the housing; an elastic member having one end connected to the body portion and the other end connected to the tensile force gauge; and a display unit displaying a force applied to the hammer, the force being measured by the tensile force gauge, when a user lifts the hammer to strike the striking surface. ### Claim 2 (depends on 1) The impact blood splatters generation experimental apparatus of claim 1, further comprising: a support fixing member comprising a support portion coupled to the other end of the body portion such that the striking portion strikes the striking surface while the body portion rotates at a constant angle; and a fixing portion fixing the support portion to the ground. ### Claim 3 (depends on 1) The impact blood splatters generation experimental apparatus of claim 1, further comprising: a blood injection member comprising a blood storage portion located inside the housing and storing and discharging the blood; and a blood injection portion injecting a certain amount of blood discharged from the blood storage portion into a certain position of the striking surface. ### Claim 4 (depends on 2) The impact blood splatters generation experimental apparatus of claim 2, further comprising: an angle measurer measuring a rotation angle of the body portion, wherein the display unit further displays an angle measured by the angle measurer. ### Claim 5 A method of generating impact blood splatters using an impact blood splatters generation experimental apparatus capable of measuring an applied force, the method comprising: lifting a hammer comprising a rod-shaped body portion, a head portion formed at one end of the body portion, and a striking portion formed on one side of the head portion; measuring the magnitude of force applied to the hammer by a tensile force gauge connected to the other end of the elastic member having one end connected to the body portion; generating impact blood splatters by striking a striking surface in which a certain amount of blood is received by the striking portion; and observing and analyzing the shape and location of the impact blood splatters according to the magnitude of the force applied to the hammer. ### Claim 6 (depends on 5) The method of claim 5, wherein the striking surface has a constant height from the ground and is formed on an upper surface of a housing with the tensile force gauge on the outer surface. ### Claim 7 (depends on 5) The method of claim 5, wherein the lifting of the hammer, the measuring of the magnitude of the force applied to the hammer, the generating of impact blood splatters, and the observing and analyzing of the shape and location of the impact blood splatters are performed by rotatably fixing the other end of the body portion so as to rotate the body portion at a certain angle when the hammer is lifted, and by changing a rotation angle of the body portion.