IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0389802
(2009-02-20)
|
| 등록번호 |
US-8267081
(2012-09-18)
|
|
발명자
/ 주소 |
- Flanagan, Craig T.
- Hurst, William S.
- Sheu, Lien-Lung
- Block, Thomas A.
- Wu, Haiming
|
| 출원인 / 주소 |
- Baxter International Inc.
|
| 대리인 / 주소 |
Marshall, Gerstein & Borun LLP
|
| 인용정보 |
피인용 횟수 :
7 인용 특허 :
247 |
초록
▼
A therapy utilizing inhaled anesthetic agents (such as desflurane, sevoflurane, isoflurane, or xenon) for the sedation of patients outside of the immediate perioperative space such as in the medical intensive care unit (MICU) and the surgical intensive care unit (SICU). The therapy includes controll
A therapy utilizing inhaled anesthetic agents (such as desflurane, sevoflurane, isoflurane, or xenon) for the sedation of patients outside of the immediate perioperative space such as in the medical intensive care unit (MICU) and the surgical intensive care unit (SICU). The therapy includes controlled delivery of volatile anesthetic agents to patients undergoing ventilatory support on an ICU ventilator over extended periods of time. A system which provides for the delivery of anesthetic agents includes an anesthetic agent vaporizer element, an anesthetic agent reflector, and a plug-in cassette which contains both a cartridge housing liquid phase volatile anesthetic agent and an anesthetic vapor scrubbing medium.
대표청구항
▼
1. An anesthetic delivery system for use with a ventilator in communication with a patient circuit WYE and an endotracheal tube, the anesthetic delivery system comprising: a vaporizer having a cavity therein, the vaporizer including a vaporized anesthesia outlet;a removable cassette received in the
1. An anesthetic delivery system for use with a ventilator in communication with a patient circuit WYE and an endotracheal tube, the anesthetic delivery system comprising: a vaporizer having a cavity therein, the vaporizer including a vaporized anesthesia outlet;a removable cassette received in the cavity of the vaporizer, the cassette having an interior including a supply of an anesthetic agent and a scrubbing material;a tube having a first end in communication with the vaporized anesthesia outlet of the vaporizer and a second end configured to be placed in communication with the endotracheal tube, wherein the cassette includes an exhausted ventilator gas inlet through which expelled gas is delivered to the interior of the cassette. 2. The anesthetic delivery system of claim 1, wherein the cassette further includes a scrubbed gas outlet through which exhausted ventilator gas that is first filtered through the scrubbing material is vented to an exterior of the cassette. 3. The anesthetic delivery system of claim 2, wherein the vaporizer includes an inlet port in communication with the exhausted ventilator gas inlet of the cassette and a vent opening in communication with the scrubbed gas outlet. 4. An anesthetic delivery system for use with a ventilator in communication with a patient circuit WYE and an endotracheal tube, the anesthetic delivery system comprising: a vaporizer having a cavity therein, the vaporizer including a vaporized anesthesia outlet;a removable cassette received in the cavity of the vaporizer, the cassette having an interior including a supply of an anesthetic agent and a scrubbing material;a tube having a first end in communication with the vaporized anesthesia outlet of the vaporizer and a second end configured to be placed in communication with the endotracheal tube, wherein the removable cassette includes an upper level and a lower level, and the upper level supplies volatile anesthetic agent to the vaporizer and scrubs ventilator exhaust gas of residual volatile anesthetic agent before releasing exhaust gas into the environment. 5. An anesthetic delivery system for use with a ventilator in communication with a patient circuit WYE and an endotracheal tube, the anesthetic delivery system comprising: a vaporizer having a cavity therein, the vaporizer including a vaporized anesthesia outlet;a removable cassette received in the cavity of the vaporizer, the cassette having an interior including a supply of an anesthetic agent and a scrubbing material;a tube having a first end in communication with the vaporized anesthesia outlet of the vaporizer and a second end configured to be placed in communication with the endotracheal tube, wherein the removable cassette includes an upper level and a lower level, and the lower level includes two adsorbent beds, which, when the removable cassette is connected to the vaporizer, allow for a switching of gas flow between the two adsorbent beds. 6. The anesthetic delivery system of claim 5, further including an inhale path that traverses one of the two adsorbent beds of the cassette, and an exhale path that traverses the other of the two adsorbent beds of the cassette. 7. The anesthetic delivery system of claim 6, wherein exhaled volatile anesthetic agent accumulates in the adsorbent bed of the exhale path until a breakthrough occurs in the exhale path. 8. The anesthetic delivery system of claim 7, wherein the vaporizer switches internal valve states when the breakthrough occurs, placing the two adsorbent beds in the other's former pneumatic path, such that a saturated adsorbent bed of the exhale path is in the inhale path and available for release into the inhale path. 9. The anesthetic delivery system of claim 6, wherein the vaporizer repeatedly switches internal valve states each time one of the two adsorbent beds is saturated during delivery of anesthetic agent and a breakthrough occurs in one of the exhale path or the inhale path. 10. The anesthetic delivery system of claim 1, further comprising a reflector disposed between the patient circuit WYE and the second end of the tube, the reflector including a housing and an adsorbent material disposed within the housing. 11. The anesthetic delivery system of claim 10, wherein the reflector further comprises at least one filter medium disposed between the adsorbent material and a port of the reflector in communication with the second end of the tube. 12. The anesthetic delivery system of claim 10, wherein the reflector further includes at least one heat and moisture exchanger medium. 13. The anesthetic delivery system of claim 1, wherein the vaporizer includes an anesthetic agent sensor in electronic communication with a closed loop controller for regulating a concentration of the anesthetic agent delivered from the vaporizer.
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