Anesthetic inhalation aid device and attachment used for the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-016/00
A61M-016/01
A61M-016/18
A61M-016/08
A61M-016/22
A61M-016/20
A61M-016/10
A61M-011/02
A61M-011/06
A61M-011/00
A61M-011/04
A61M-015/00
출원번호
US-0812279
(2012-05-31)
등록번호
US-9072859
(2015-07-07)
우선권정보
JP-2011-122801 (2011-05-31)
국제출원번호
PCT/JP2012/064069
(2012-05-31)
§371/§102 date
20130125
(20130125)
국제공개번호
WO2012/165541
(2012-12-06)
발명자
/ 주소
Ishikita, Naoyuki
출원인 / 주소
Ishikita, Naoyuki
대리인 / 주소
Cermak Nakajima & McGowan LLP
인용정보
피인용 횟수 :
3인용 특허 :
6
초록▼
An inhalation mask, an artificial nose unit, an anesthetic gas concentration detector, an extension tube, an anesthesia attachment, and an elastic bag are in communicative connection in sequence. The elastic bag has a mixing chamber formed therein and has an anesthetic inlet, an air inlet, and an ou
An inhalation mask, an artificial nose unit, an anesthetic gas concentration detector, an extension tube, an anesthesia attachment, and an elastic bag are in communicative connection in sequence. The elastic bag has a mixing chamber formed therein and has an anesthetic inlet, an air inlet, and an outlet port each formed at the boundary to the exterior. The anesthesia attachment includes a hollow structure and an evaporation injector syringe. The outlet port of the elastic bag is in communicative connection with the hollow structure through its opening, and the evaporation injector syringe tightly mates with the interior of another opening. The anesthetic introduced into the mixing chamber is vaporized and then mixed with air introduced from the air inlet into mixed gas. The mixed gas is supplied from the outlet port to the inhalation mask by compressing the elastic bag or other procedures.
대표청구항▼
1. An anesthetic inhalation aid device used for inhalation administration of an anesthetic in a reservoir to a patient, the anesthetic inhalation aid device comprising: a connector that is detachably and airtightly connectable to an anesthetic outlet of the reservoir;an anesthetic extraction unit co
1. An anesthetic inhalation aid device used for inhalation administration of an anesthetic in a reservoir to a patient, the anesthetic inhalation aid device comprising: a connector that is detachably and airtightly connectable to an anesthetic outlet of the reservoir;an anesthetic extraction unit connected to the connector, being in communication with the interior of the reservoir, and including an anesthetic extraction channel for unidirectionally introducing the anesthetic from the interior of the reservoir to the exterior;a mixer having an anesthetic inlet for introducing the anesthetic inward through the anesthetic extraction channel, an oxygen-containing gas inlet for unidirectionally introducing oxygen-containing gas at least containing oxygen from the exterior to the interior, a mixing chamber for mixing the introduced anesthetic with the oxygen-containing gas, and an outlet port for exhausting the mixed gas generated in the mixing chamber outward from the mixing chamber, the anesthetic inlet being formed so as to extend from the outlet port to the mixing chamber;a mixed gas introduction passage for unidirectionally introducing the mixed gas from the outlet port to the oral cavity or nasal cavity of the patient;a relief valve that opens when the internal pressure of the mixed gas introduction passage reaches a level greater than or equal to a first predetermined pressure; anda remover that removes an anesthetic content in gas exhausted from the relief valve, whereinthe mixer is configured as an elastic bag that is elastically deformed by hand to increase and decrease the volume of the mixing chamber, the mixed gas is exhausted from the outlet port when the volume is decreased, and the oxygen-containing gas is introduced from the oxygen-containing gas inlet when the volume is increased. 2. The anesthetic inhalation aid device according to claim 1, wherein the anesthetic extraction unit further includes a pump that serves to pump out the anesthetic in the reservoir to the anesthetic inlet through the anesthetic extraction channel. 3. The anesthetic inhalation aid device according to claim 2, wherein the anesthetic extraction unit further includes an atomizer provided to the anesthetic extraction channel to atomize the anesthetic pumped out with the pump. 4. The anesthetic inhalation aid device according to claim 2, further comprising: an anesthetic gas concentration detector that detects the concentration of anesthetic gas in the mixed gas introduction passage; anda display that shows the concentration of the anesthetic gas detected by the anesthetic gas concentration detector. 5. The anesthetic inhalation aid device according to claim 4, further comprising: an actuator configured so as to operate the pump;a driving circuit configured so as to drive the actuator; anda control circuit that controls the driving circuit such that the detection concentration detected by the anesthetic gas concentration detector automatically approaches a target concentration determined depending on a symptom of the patient. 6. The anesthetic inhalation aid device according to claim 1, wherein the anesthetic extraction unit further includes a pump that serves to pump air to the anesthetic inlet, wherein the anesthetic in the reservoir is drawn through the anesthetic extraction channel and then atomized owing to the jet flow of air pumped from the pump to the anesthetic inlet, and the atomized anesthetic is introduced into the anesthetic inlet together with the pumped air. 7. The anesthetic inhalation aid device according to claim 1, wherein the anesthetic extraction unit includes a heater that heats an anesthetic flowing in the anesthetic extraction channel. 8. The anesthetic inhalation aid device according to claim 1, wherein the anesthetic extraction unit further includes an expired air introduction passage that unidirectionally introduces the expired air of the patient into the inner space of the reservoir, wherein the anesthetic extraction channel introduces the anesthetic in the reservoir into the anesthetic inlet of the mixer by the pressure of the introduced expired air. 9. The anesthetic inhalation aid device according to claim 1, wherein the reservoir is configured so as to be contracted as the volume of the anesthetic held by the reservoir is reduced. 10. The anesthetic inhalation aid device according to claim 1, further comprising an exhaust adjuster that continuously changes the closed state of an exhaust port of the relief valve to adjust the amount of exhaust air. 11. An attachment used in the anesthetic inhalation aid device according to claim 1, the attachment comprising: the connector;the anesthetic extraction unit;at least part of the mixed gas introduction passage; andthe relief valve. 12. The attachment according to claim 11, wherein the mixed gas introduction passage includes a first mixed gas introduction passage having an end detachably connected to the outlet port of the mixer, anda second mixed gas introduction passage detachably connected to the other end of the first mixed gas introduction passage, whereinat least part of the mixed gas introduction passage functions as the first mixed gas introduction passage. 13. The attachment according to claim 12, wherein the connector and the anesthetic extraction unit are provided as an integral unit that functions is an anesthetic injector. 14. The attachment according to claim 13, wherein the first mixed gas introduction passage has a hollow structure having a first opening that functions as a fluid inlet of the relief valve, a second opening connected to the anesthetic injector, a third opening that is in communicative connection with the mixer through the outlet port, and a fourth opening that is in communicative connection with the second mixed gas introduction passage. 15. The attachment according to claim 14, wherein the anesthetic injector is detachably connected to the second opening. 16. The attachment according to claim 15, wherein the hollow structure is a substantially T-shaped tubal structure, and the two openings in the opposite directions among the three openings function as the second opening and the third opening, respectively. 17. The attachment according to claim 16, wherein the anesthetic injector includes an injection needle. 18. The attachment according to claim 17, wherein the second mixed gas introduction passage includes an inhalation mask that covers the oral cavity and nasal cavity of the patient to enable the patient to inhale the mixed gas and an artificial nose unit that holds heat and moisture derived from the expired air of the patient. 19. The attachment according to claim 12, wherein the connector, the anesthetic extraction unit, and the first mixed gas introduction passage are provided as an integral unit. 20. The attachment according to claim 19, wherein the relief valve is provided to the first mixed gas introduction passage. 21. The attachment according to claim 14, wherein the valve-opening area of the relief valve in the first opening is determined such that the relief valve is closed when the internal pressure of the mixed gas introduction passage is reduced to a second predetermined pressure lower than the first predetermined pressure after the relief valve is opened.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (6)
Thwaites David J. (Addingham GB2), Anaesthetic vaporizer.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.