An improved, pumpless respirator (ventilator) humidifier is provided with a water refilling device (1, 2) and with an electrically heated evaporator (5). The evaporator (5) has a tubular housing, which is filled with a porous sintered material. A front side of the housing is in liquid connection wit
An improved, pumpless respirator (ventilator) humidifier is provided with a water refilling device (1, 2) and with an electrically heated evaporator (5). The evaporator (5) has a tubular housing, which is filled with a porous sintered material. A front side of the housing is in liquid connection with the automatic water refilling device (1, 2) and the other front side is in connection with an evaporator chamber (4), through which breathing gas flows. The evaporator (5) is provided with a porous sintered glass or ceramic with a pore size of 10 μm to 40 μm in a first, lower, unheated area (14), and the evaporator (5) is provided with a porous sintered metal with a mean pore size of 50 μm to 200 μm in a second, upper area (15) heated by means of a heater (6).
대표청구항▼
What is claimed is: 1. A respirator humidifier, comprising: an evaporator chamber; an automatic water refilling device; an evaporator with a tubular housing with a jacket having an outer jacket side and an inside filled with a porous material, wherein one end of the housing is in liquid connection
What is claimed is: 1. A respirator humidifier, comprising: an evaporator chamber; an automatic water refilling device; an evaporator with a tubular housing with a jacket having an outer jacket side and an inside filled with a porous material, wherein one end of the housing is in liquid connection with the water refilling device and another end of said housing is in connection with said evaporator chamber, through which breathing gas flows; and a heater arranged externally of said jacket of said housing for heating said housing, said porous material including a porous sintered glass or ceramic with a pore size of 10 μm to 40 μm in a first, lower, unheated area of said jacket and a porous sintered metal with a mean pore size of 50 μm to 200 μm in a second, upper area heated by said heater, said porous material defining a capillary action delivery means for delivering water from said automatic refilling device to said evaporator chamber via capillary action. 2. A respirator humidifier in accordance with claim 1, wherein the sintered metal consists of a stainless steel. 3. A respirator humidifier in accordance with claim 1, wherein said evaporator is provided with a first temperature sensor in said second, upper area, for controlling a heating output of the heater. 4. A respirator humidifier in accordance with claim 3, wherein said evaporator is provided with an additional, second temperature sensor in said first, lower area for controlling the heating output of the heater, so that overheating of the first area is prevented from occurring. 5. A respirator humidifier in accordance with claim 4, further comprising a breathing gas volume flow sensor provided upstream of said evaporator chamber with respect to a direction of flow and a third temperature sensor provided upstream of said evaporator chamber with respect to the direction of flow and a fourth temperature sensor provided downstream of said evaporator chamber with respect to the direction of flow for controlling the heating output of the heater as a function of the measured heating of the measured breathing gas volume flow. 6. A respirator humidifier in accordance with claim 5, wherein the heating output of the heater is controlled first as a function of the measured heating of the measured breathing gas volume flow, providing that when a preset, upper limit value of the temperature measured by means of said second temperature sensor in the first, lower area is exceeded, the heating output of the heater is reduced or interrupted. 7. A respirator humidifier in accordance with claim 1, wherein the length to volume ratio of the sintered glass or ceramic arranged in the first, lower area to the porous sintered metal arranged in the second, upper area is approximately 1:4 to 1:6. 8. A respirator humidifier in accordance with claim 1, wherein the sintered metal comprises a chromium-nickel steel. 9. A respirator humidifier in accordance with claim 1, further comprising a breathing gas volume flow sensor provided upstream of said evaporator chamber with respect to a direction of flow and a leading temperature sensor provided upstream of said evaporator chamber with respect to the direction of flow and a trailing temperature sensor provided downstream of said evaporator chamber with respect to the direction of flow for controlling the heating output of the heater as a function of the measured heating of the measured breathing gas volume flow. 10. A respirator humidifier in accordance with claim 3, further comprising a breathing gas volume flow sensor provided upstream of said evaporator chamber wherein the heating output of the heater is controlled first as a function of the measured heating of the measured breathing gas volume flow, providing that when a preset, upper limit value of the temperature measured by means of said second temperature sensor in the first, lower area is exceeded, the heating output of the heater is reduced or interrupted. 11. A respirator humidifier, comprising: an evaporator chamber; a water reservoir; an automatic water refilling means for maintaining said water reservoir at a fill level; an evaporator with a tubular housing having an outer surface, said tubular housing having a first housing inner portion and a second housing inner portion, said first housing inner portion being composed of a first porous material, said second housing inner portion being composed of a second porous material; and a heater external to said tubular housing of said evaporator for heating said second housing inner portion, said first porous material including a porous sintered material of a first thermal conductivity with a pore size of 10 μm to 40 μm, said first housing inner portion not being heated via said heater, said second porous material having a second thermal conductivity with a mean pore size of 50 μm to 200 μm, said second porous material being heated via said heater when said heater is activated, said first porous material and said second porous material defining a capillary delivery means for delivering the water from said water reservoir to said evaporator chamber via capillary action, said second thermal conductivity being greater than said first thermal conductivity. 12. A respirator humidifier in accordance with claim 11, wherein said first porous material includes a porous sintered glass or ceramic and, said second porous material includes a porous sintered metal. 13. A respirator humidifier in accordance with claim 11, wherein said evaporator is provided with a first temperature sensor in said second housing inner portion for controlling a heating output of the heater. 14. A respirator humidifier in accordance with claim 13, wherein said evaporator is provided with an additional, second temperature sensor in said first housing inner portion for controlling the heating output of the heater, so that overheating of said first housing inner is reduced. 15. A respirator humidifier in accordance with claim 14, further comprising a breathing gas volume flow sensor provided upstream of said evaporator chamber with respect to a direction of flow and a third temperature sensor provided upstream of said evaporator chamber with respect to the direction of flow and a fourth temperature sensor provided downstream of said evaporator chamber with respect to the direction of flow for controlling the heating output of the heater as a function of the measured heating of the measured breathing gas volume flow. 16. A respirator humidifier in accordance with claim 15, wherein the heating output of the heater is controlled first as a function of the measured heating of the measured breathing gas volume flow, providing that when a preset, upper limit value of the temperature measured by means of said second temperature sensor in the first housing inner portion is exceeded, the heating output of the heater is reduced or interrupted. 17. A respirator humidifier in accordance with claim 11, wherein the length to volume ratio of the sintered glass or ceramic arranged in the first housing inner portion to the porous sintered metal arranged in the second housing inner portion is approximately 1:4 to 1:6. 18. A respirator humidifier in accordance with claim 12, wherein the sintered metal comprises one or more of a chromium-nickel steel and a stainless steel. 19. A respirator humidifier in accordance with claim 11, further comprising a breathing gas volume flow sensor provided upstream of said evaporator chamber with respect to a direction of flow and a leading temperature sensor provided upstream of said evaporator chamber with respect to the direction of flow and a trailing temperature sensor provided downstream of said evaporator chamber with respect to the direction of flow for controlling the heating output of the heater as a function of the measured heating of the measured breathing gas volume flow. 20. A respirator humidifier, comprising: an evaporator chamber; a water reservoir; an automatic water refilling means for delivering water to said water reservoir such that said water reservoir is maintained at a fill level; an evaporator with a tubular housing having an outer surface, said tubular housing having a first housing inner portion and a second housing inner portion, said first housing inner portion being composed of a first porous material having a first thermal conductivity, said second housing inner portion being composed of a second porous material having a second thermal conductivity, one end of said housing being in contact with said water reservoir and another end of said housing being connected to said evaporator chamber, said first thermal conductivity being less than said second thermal conductivity; and a heater for heating said evaporator from the outside, said first porous material including a porous sintered glass or ceramic with a pore size of 10 μm to 40 μm, said first housing inner portion not being heated via said heater, said second porous material including a porous sintered metal with a mean pore size of 50 μm to 200 μm, said second porous material being heated via said heater when said heater is activated, said first porous material and said second porous material defining a means for producing a capillary action such that water passes from said water reservoir to said evaporator via said capillary action, wherein said heater evaporates the water in said second housing inner portion when said heater is activated.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (9)
Fodor Imre (7 Hernes Close ; Hernes Road Oxford EN), Air humidifiers.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.