Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Removal of carbon dioxide and carbon monoxide from patient expired gas during anesthesia

一种一氧化碳、二氧化碳的技术，应用在呼吸器、药物的器械、吸入器等方向，能够解决不能有效除去一氧化碳等问题

Inactive Publication Date: 2007-09-12
MINRAD
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, currently used alkaline substances are known to be ineffective in removing carbon monoxide, some of which is endogenous, resulting from the natural breakdown of hemoglobin compounds in the mammalian circulatory system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Removal of carbon dioxide and carbon monoxide from patient expired gas during anesthesia
  • Removal of carbon dioxide and carbon monoxide from patient expired gas during anesthesia
  • Removal of carbon dioxide and carbon monoxide from patient expired gas during anesthesia

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The present invention provides methods and systems for the use of molecular sieves for the removal of carbon dioxide and carbon monoxide from a patient's exhaled air during anesthesia. The system and method are particularly useful for anesthesia using various halogenated ether inhalational anesthetics. Exhaled air is dried with a non-reactive desiccant to remove moisture, passed through a filter capable of removing particles larger than 3 microns, passed through a bed of natural or synthetic molecular sieves capable of removing carbon dioxide and carbon monoxide, and returned to the breathing circuit for reinfusion to the patient.

[0014] Key Points of Figure 1

[0015] Figure 1 shows the system of the present invention, which has the following components:

[0016] A, B, C are suitable vessels containing molecular sieves capable of selectively removing carbon dioxide and carbon monoxide from the mixed gas stream, also designated 30, 32 and 34. Molecular sieve models ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method and system for the application of molecular sieves to the removal of carbon dioxide and carbon monoxide from the patient expired gases during anesthesia. The system is especially useful in anesthesia using any of the halogenated ether inhalation anesthetic agents. The expired gases are dried using a non-reactive desiccant to remove water, passed through a filter capable of removing particles larger than 0.3 microns, passed through a bed containing either natural or synthetic molecular sieves capable of removing carbon dioxide and carbon monoxide and then returned to the breathing circuit for recirculation to the patient.

Description

[0001] Cross References to Related Applications [0002] Applicants claim priority based on US Provisional Application Serial No. 60 / 559,659, entitled "Removal of Carbon Dioxide and Carbon Monoxide from Exhaled Breath of a Patient During Anesthesia," filed April 5, 2004, the contents of which are incorporated by reference. Background of the invention [0003] Halogenated ethers such as sevoflurane, isoflurane, enflurane, desflurane and halothane are widely used as inhalational anesthetics worldwide. These anesthetics are usually administered in a closed or semi-closed anesthetic circuit, in which all or part of the anesthetic-containing gas exhaled by the patient is rebreathed. In this anesthesia circuit, the patient's exhaled carbon dioxide (CO 2 ), to prevent its accumulation and cause hypoxia in patients. CO removal from these systems is currently 2 The commonly used method is to pass the exhaled gas through a bed of alkali metal base, and the CO 2 Converts to carbonic ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/00A61M15/00A61M15/08A61M16/01
CPCA61M16/009A61M16/01A61M16/1055A61M16/22A61M16/107A61M16/1065A61M2205/75
Inventor J·C·麦克纳尼
Owner MINRAD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com