Perfusion device, anesthetic vaporizer, and anesthetic machine
View Patent ↗This disclosure provides a perfusion device, an anesthetic vaporizer, and an anesthetic machine. The anesthetic vaporizer includes a vaporizer body and the perfusion device. A feed port and a tank are provided in the vaporizer body. The perfusion device includes a mounting assembly, an ejector rod assembly, and a valve core assembly that is provided with a liquid inlet channel. The mounting assembly includes a mounting seat that is mounted on the feed port and provided with a hollow structure having an opening at both ends. The valve core assembly is movably mounted on one opening of the hollow structure, and the ejector rod assembly is movably mounted on the other opening of the hollow structure and forms a sealed structure with the mounting assembly. The ejector rod assembly may drive the valve core assembly to move toward the tank, and the liquid inlet channel communicates with the hollow structure.
1 . An anesthetic vaporizer, comprising:
a vaporizer body provided with a feed port and a tank, the tank communicating with an outside via the feed port; and
a perfusion device comprising a mounting assembly, an ejector rod assembly and a valve core assembly, the valve core assembly provided with a liquid inlet channel, the mounting assembly comprising a mounting seat mounted on the feed port, the mounting seat comprising a hollow structure having openings at two opposite ends of the hollow structure, the valve core assembly being movably mounted on one of the openings at one of the two opposite ends of the hollow structure facing the tank, the ejector rod assembly being movably mounted on another one of the openings at another one of the two opposite ends of the hollow structure and forming a sealed structure with the mounting assembly, the ejector rod assembly being configured to drive the valve core assembly to move toward the tank under an external force, and the liquid inlet channel communicating with the hollow structure,
wherein the mounting assembly further comprises a liquid injection seat configured to receive and engage a mouth of an anesthetic bottle, and the external force is applied to the ejector rod assembly upon engagement of the mouth of the anesthetic bottle with the liquid injection seat.
2 . The anesthetic vaporizer of claim 1 , wherein the hollow structure comprises an inlet section and an outlet section, and a diameter of the outlet section is smaller than a diameter of the inlet section; the ejector rod assembly is mounted in the inlet section, and the valve core assembly is mounted in the outlet section.
3 . The anesthetic vaporizer of claim 2 , wherein the ejector rod assembly comprises an ejector rod and an elastic member; one end of the elastic member abuts against the ejector rod, and another end of the elastic member abuts against an end of the inlet section close to the outlet section.
4 . The anesthetic vaporizer of claim 3 , wherein an end of the ejector rod facing the valve core assembly is provided with a connection end; a diameter of the connection end is smaller than the diameter of the outlet section, and the valve core assembly is connected to the connection end.
5 . The anesthetic vaporizer of claim 4 , wherein the valve core assembly is provided with a connection portion, and the valve core assembly is connected to the connection end by way of the connection portion.
6 . The anesthetic vaporizer of claim 5 , wherein at least one valve core through hole, which communicates with the liquid inlet channel, is provided between the connection portion and the valve core assembly.
7 . The anesthetic vaporizer of claim 3 , wherein the inlet section is provided with a liquid injection seat mounting recess, and the liquid injection seat is mounted on the liquid injection seat mounting recess, so as to constrain the ejector rod assembly within the hollow structure.
8 . The anesthetic vaporizer of claim 7 , wherein the liquid injection seat is provided with an ejection portion, and when the mouth of the anesthetic bottle is connected to the liquid injection seat, a sealing part mounted in the mouth of the anesthetic bottle is ejected by the ejection portion.
9 . The anesthetic vaporizer of claim 8 , wherein the ejection portion is provided with a liquid inlet hole running through two axial ends of the ejection portion, and the liquid inlet hole corresponds in position to the mouth of the anesthetic bottle connected to the liquid injection seat.
10 . The anesthetic vaporizer of claim 8 , wherein at least one penetrating hole is provided between the ejection portion and the liquid injection seat, and the ejector rod is provided with an extension which penetrates the at least one penetrating hole; when the anesthetic bottle is placed on the liquid injection seat, the anesthetic bottle is capable of driving the ejector rod away from the liquid injection seat by way of the extension.
11 . The anesthetic vaporizer of claim 10 , wherein a length of the extension extending from the liquid injection seat is less than a length of the ejection portion extending from the liquid injection seat.
12 . The anesthetic vaporizer of claim 7 , wherein the ejector rod assembly further comprises a first seal disposed between the ejector rod and the liquid injection seat.
13 . The anesthetic vaporizer of claim 7 , wherein a seal is provided between the liquid injection seat and the mounting seat, and the liquid injection seat is provided with a seal mounting groove in which the seal is mounted.
14 . The anesthetic vaporizer of claim 1 , wherein a seal is provided between the mounting seat and the feed port, a seal groove is provided along a periphery of the mounting seat, and the seal is mounted in the seal groove.
15 . The anesthetic vaporizer of claim 1 , wherein a distance between an end of the valve core assembly facing the tank and the tank is equal to a preset distance.
16 . An anesthetic machine comprising
an anesthetic vaporizer, the anesthetic vaporizer comprising:
a vaporizer body provided with a feed port and a tank, and the tank communicating with an outside via the feed port;
a perfusion device comprising a mounting assembly, an ejector rod assembly and a valve core assembly, the valve core assembly provided with a liquid inlet channel, the mounting assembly comprising a mounting seat mounted on the feed port, the mounting seat comprising a hollow structure having openings at two opposite ends of the hollow structure, the valve core assembly being movably mounted on one of the openings at one of the two opposite ends of the hollow structure facing the tank, the ejector rod assembly being movably mounted on another one of the openings at another one of the two opposite ends of the hollow structure and forming a sealed structure with the mounting assembly, the ejector rod assembly being configured to drive the valve core assembly to move toward the tank under an external force, and the liquid inlet channel communicating with the hollow structure,
wherein the mounting assembly further comprises a liquid injection seat configured to receive and engage a mouth of an anesthetic bottle, and the external force is applied to the ejector rod assembly upon engagement of the mouth of the anesthetic bottle with the liquid injection seat.
17 . A perfusion device for use in an anesthetic vaporizer with a feed port and a tank, comprising:
a mounting assembly comprising a mounting seat mounted on the feed port, the mounting seat comprising a hollow structure having openings at two opposite ends of the hollow structure;
a valve core assembly provided with a liquid inlet channel and movably mounted on one of the openings at one of the two opposite ends of the hollow structure facing the tank; and
an ejector rod assembly movably mounted on another one of the openings at another one of the two opposite ends of the hollow structure and forming a sealed structure with the mounting assembly, the ejector rod assembly driving the valve core assembly to move toward the tank under an external force, and the liquid inlet channel communicating with the hollow structure,
wherein the mounting assembly further comprises a liquid injection seat configured to receive and engage a mouth of an anesthetic bottle, and the external force is applied to the ejector rod assembly upon engagement of the mouth of the anesthetic bottle with the liquid injection seat.