Carotid artery blood flow in-vitro control device
A control device and arterial blood technology, applied in the field of medical devices, can solve the problem of inconvenient in vitro operation of carotid artery blood flow control, and achieve the effect of avoiding sudden increase of blood flow and facilitating control
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[0085] The outer wall of the driven worm gear 44e is formed with a worm gear concave ring, and the worm gear concave ring rotatably fits with the driving lower hole 42b to limit the axial movement of the driven worm gear 44e.
[0086] Thanks to the above-mentioned improved technical solution, the driven worm gear 44e only has a rotational degree of freedom but not an axial movement degree of freedom.
[0087] As a further implementation:
[0088] The driven gear 44a is rotatably disposed on the driven gear shaft, and the driven gear shaft is fixedly disposed on the upper surface of the housing body 42a.
[0089] The lower end of the driven gear shaft is expanded to form a cylindrical gear shaft end, and the inner wall of the driven gear 44a is provided with a gear shaft chamber matching with the gear shaft end.
[0090] Thanks to the above-mentioned improved technical solution, the driven gear 44a only has the degree of freedom of rotation and does not have the degree of free...
Embodiment 1
[0100] Example 1, quick adjustment:
[0101] Pull up the quick adjustment pull rod 33c and the upward rack 33b;
[0102] The upward-moving rack 33b drives the upward-moving push plate 22b, the upward-moving sliding sleeve 22a, the lower insertion plate 22d, and the upward-moving splint 22e to move upward;
[0103] The up-going rack 33b drives the down-going rack 32b to go down through the central gear 31;
[0104] The down-moving rack 32b drives the down-moving push plate 21b, down-moving sliding sleeve 21a, down-moving front plate 21d, and down-moving splint 21e to go down;
[0105] The up-moving splint 22e and the down-moving splint 21e quickly clamp the carotid artery, limit the blood flow of the carotid artery a, and avoid excessive blood perfusion;
Embodiment 2
[0106] Example 2, precise adjustment:
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