Thrombelastography device, heating apparatus, blood coagulation analysis system and rotational angle measurement method

1. A thrombelastography device, comprising a plurality of thrombelastography device splits that are horizontally arranged in parallel, wherein each of the thrombelastography device splits comprises:

a worktable configured to support a container for containing blood and to rotate the container;

a rack fixed on the worktable;

a test bar located above the container, the test bar configured to be at least partially inserted into the blood in the container and rotatably connected to the rack, wherein a side surface of the test bar includes a reflective surface;

and

a tester fixedly connected to the rack and includes a first through hole that is arranged vertically, and at least two second through holes that each extend from the first through hole and are arranged horizontally, the test bar to passing through the first through hole, wherein the reflective surface is located in the first through hole, a light emitting device and a light receiving device are arranged inside the at least two second through holes respectively, the light emitting device configured to emit light to the reflective surface, and the light receiving device configured to receive the light reflected by the reflective surface.

2. The thrombelastography device according to claim 1 , wherein the rack comprises a first support fixedly connected to the tester and a second support fixedly connected to the test bar, wherein the first support comprises two upright columns which are fixed on the tester and arranged vertically, and a first crossbeam for connecting the two upright columns and arranged horizontally; the second support comprises an opening through which the first crossbeam passes, and a second crossbeam which is located right above the first crossbeam and is arranged horizontally; a top cone which protrudes downward is arranged in the middle of the lower surface of the second crossbeam; a jewel bearing is arranged on an upper surface of the first crossbeam; the jewel bearing is located below the top cone;

the top cone is in point contact with a concave hole in the jewel bearing.

3. The thrombelastography device according to claim 2 , further comprising magnets oppositely arranged on the upper surface of the first crossbeam and the lower surface of the second crossbeam, and the opposite surfaces of the magnets have like magnetic poles.

4. The thrombelastography device according to claim 2 , further comprising a position correction device which is connected to the test bar and is configured to generate, when the test bar rotates away from a balanced position, an acting force for rotating the test bar back to the balanced position.

5. The thrombelastography device according to claim 4 , wherein the position correction device comprises one or more hair springs, wherein an inner ring of each of the one or more hair springs is fixedly connected to an outer circumferential surface of the test bar, and an outer ring of each of the one or more hair springs is fixedly connected to the upright column.

6. The thrombelastography device according to claim 5 , wherein the one or more hair springs includes a first hairspring and a second hairspring, a spiral direction of the first hairspring from the inner ring to the outer ring is opposite to a spiral direction of the the second hair spring from the inner ring to the outer ring.

7. The thrombelastography device according to claim 5 , wherein the position correction device further comprises one or more zero setting modules, wherein

each of the zero setting modules corresponds to one hair spring of the one or more hair springs; and

each of the zero setting modules having one end fixedly connected to the upright column and another end fixedly connected to different positions on the outer ring of the corresponding hair spring of the one or more hair springs in an adjustable manner, so as to adjust the balanced position.

8. The thrombelastography device according to claim 1 , wherein the rack comprises a first support fixedly connected to the tester and a second support fixedly connected to the test bar, the first support comprising two upright columns arranged vertically and a first crossbeam arranged horizontally, the second support comprising an opening through which the first crossbeam passes and a second crossbeam arranged horizontally and located right above the first crossbeam,

a top cone protrudes downward from the lower surface of the second crossbeam, a jewel bearing arranged on an upper surface of the first crossbeam, the jewel bearing located below the top cone, and the top cone in point contact with the jewel bearing.

9. The thrombelastography device according to claim 1 , further comprising a position correction device which is connected to the test bar and is configured to generate, when the test bar rotates away from a balanced position, an acting force for rotating the test bar back to the balanced position.

10. The thrombelastography device according to claim 1 , further comprising a hair spring, an inner ring of the hair spring is fixedly connected to an outer circumferential surface of the test bar, and an outer ring of the hair spring is fixedly connected to the rack.