US 12,076,491 B2
Anesthetic evaporator and anesthesia machine
Congquan Wang, Shenzhen (CN); Shiming Ai, Shenzhen (CN); Peitao Chen, Shenzhen (CN); and Xuetao Wu, Shenzhen (CN)
Assigned to SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD., Shenzhen (CN); and SHENZHEN MINDRAY SCIENTIFIC CO., LTD., Shenzhen (CN)
Appl. No. 16/757,368
Filed by SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD., Shenzhen (CN); and SHENZHEN MINDRAY SCIENTIFIC CO., LTD., Shenzhen (CN)
PCT Filed Oct. 20, 2017, PCT No. PCT/CN2017/107130
§ 371(c)(1), (2) Date Oct. 13, 2020,
PCT Pub. No. WO2019/075753, PCT Pub. Date Apr. 25, 2019.
Prior Publication US 2021/0016048 A1, Jan. 21, 2021
Int. Cl. A61M 16/18 (2006.01); A61M 16/20 (2006.01); A61M 16/00 (2006.01)
CPC A61M 16/183 (2013.01) [A61M 16/208 (2013.01); A61M 2016/0027 (2013.01); A61M 2202/0241 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An anesthetic evaporator, comprising:
a housing;
an anesthetic agent storage tank;
a cover that is movably connected with the housing, the anesthetic agent storage tank being provided with an anesthetic agent adding barrel arranged corresponding to the cover;
a mechanical pressure relief assembly connected with the anesthetic agent storage tank, wherein the mechanical pressure relief assembly is provided with a first state in which a pressure within the anesthetic agent storage tank is maintained and a second state in which a pressure within the anesthetic agent storage tank is released; and
a linkage mechanism, wherein when adding an anesthetic agent, an operation action on the anesthetic evaporator drives the linkage mechanism, and the linkage mechanism drives the mechanical pressure relief assembly to be switched from the first state to the second state, wherein a first end of the linkage mechanism is connected with the cover, a second end of the linkage mechanism is connected with the mechanical pressure relief assembly, and the operation action on the anesthetic evaporator comprises opening the cover,
wherein,
the mechanical pressure relief assembly comprises a main body, a first pipe, a second pipe, a third pipe, and a valve stem assembly, wherein:
a first end of the first pipe is connected with the main body, and a second end of the first pipe is connected with a driving gas source;
a first end of the second pipe is connected with the main body, and a second end of the second pipe is connected with an exhaust gas treatment system;
a first end of the third pipe is connected with the main body, and a second end of the third pipe is in communication with the anesthetic agent storage tank; and
the linkage mechanism is connected with the valve stem assembly.
 
9. An anesthetic evaporator, comprising:
a housing;
an anesthetic agent storage tank;
a cover that is movably connected with the housing, the anesthetic agent storage tank being provided with an anesthetic agent adding barrel arranged corresponding to the cover;
a mechanical pressure relief assembly connected with the anesthetic agent storage tank, wherein the mechanical pressure relief assembly is provided with a first state in which a pressure within the anesthetic agent storage tank is maintained and a second state in which a pressure within the anesthetic agent storage tank is released; and
a linkage mechanism, wherein when adding an anesthetic agent, an operation action on the anesthetic evaporator drives the linkage mechanism, and the linkage mechanism drives the mechanical pressure relief assembly to be switched from the first state to the second state,
wherein:
a first end of the linkage mechanism extends into the anesthetic agent adding barrel, and a second end of the linkage mechanism is connected with the mechanical pressure relief assembly; and the operation action on the anesthetic evaporator comprises pushing an anesthetic agent adding container into the anesthetic agent adding barrel; and
wherein the mechanical pressure relief assembly comprises a main body, a first pipe, a second pipe, a third pipe, and a valve stem assembly, wherein:
a first end of the first pipe is connected with the main body, and a second end of the first pipe is connected with a driving gas source;
a first end of the second pipe is connected with the main body, and a second end of the second pipe is connected with an exhaust gas treatment system;
a first end of the third pipe is connected with the main body, and a second end of the third pipe is in communication with the anesthetic agent storage tank; and
the linkage mechanism is connected with the valve stem assembly.
 
17. An anesthetic evaporator, comprising:
a housing;
an anesthetic agent storage tank;
a cover that is movably connected with the housing, the anesthetic agent storage tank being provided with an anesthetic agent adding barrel arranged corresponding to the cover;
a mechanical pressure relief assembly connected with the anesthetic agent storage tank, wherein the mechanical pressure relief assembly is provided with a first state in which a pressure within the anesthetic agent storage tank is maintained and a second state in which a pressure within the anesthetic agent storage tank is released; and
a linkage mechanism, wherein when adding an anesthetic agent, an operation action on the anesthetic evaporator drives the linkage mechanism, and the linkage mechanism drives the mechanical pressure relief assembly to be switched from the first state to the second state,
wherein:
the mechanical pressure relief assembly comprises a main body, a first pipe, a second pipe, a third pipe, and a valve stem assembly, wherein
a first end of the first pipe is connected with the main body, and a second end of the first pipe is connected with a driving gas source;
a first end of the second pipe is connected with the main body, and a second end of the second pipe is connected with an exhaust gas treatment system;
a first end of the third pipe is connected with the main body, and a second end of the third pipe is in communication with the anesthetic agent storage tank; and
the linkage mechanism is connected with the valve stem assembly.