CN202777374U - Medical heat and humidity exchange device - Google Patents
Medical heat and humidity exchange device Download PDFInfo
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- CN202777374U CN202777374U CN 201220488959 CN201220488959U CN202777374U CN 202777374 U CN202777374 U CN 202777374U CN 201220488959 CN201220488959 CN 201220488959 CN 201220488959 U CN201220488959 U CN 201220488959U CN 202777374 U CN202777374 U CN 202777374U
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Abstract
The utility model discloses a medical heat and humidity exchange device used in clinical mechanical ventilation, and particularly relates to a heat and humidity exchange device with medicating function. The heat and humidity exchange device comprises a base seat, a core body with a plurality of channels, an upper cover and heat and humidity exchange media arranged in the core body, and is characterized in that the core body is provided with the plurality of independent and mutual separated channels, and at least one channel is provided with the heat and humidity exchange media. The medical heat and humidity exchange device is simple in structure, and can reliably prevent bacteria from passing the heat and humidity exchange device, prevents a cross infection caused by the pollution of a breathing machine system or prevents the bacteria in the breathing machine system from being carried to a patient, and can inject atomized medicine to the patient without dismantling the heat and humidity exchange device.
Description
Technical field
The present invention relates to a kind of medical heat and humidity exchange (HME).
Background technology
Medical heat and humidity exchange (HME) are clinical a kind of medical apparatus and instruments commonly used, mainly use in anaesthesia patient, ICU intensive care unit patient's etc. medical treatment and nursing process.Although respirator and breathing circuit provide the probability of artificial ventilation to dyspneic sufferer, in use, the gas of respirator output does not have humidity or the temperature of suitable human lung's environment.At present, the patient that intubate is breathed under the artificial ventilation state normally adds gentle humidification by dual mode to gas.First kind of way: when the patient expects that the time that intubate is breathed is less than 72 hours, adopt at the artificial ventilation device and add the wet switch of a heat.The operation of the wet switch of heat is by retening temperature and humidity from patient's Exhaled gasesS, and gives the patient in expiratory phase next time with the temperature and humidity that major part keeps.The second way: when the patient expects that the time that intubate is breathed surpasses 72 hours, then adopt an active armarium initiatively to artificial ventilation device heating and moistening.
In above-mentioned artificial ventilation medical treatment and nursing process, depending on patient's health, inject by the gas passage medicine of atomizing, the treatment respiratory tract disease.At this moment, inner heat and the humidity exchange media of medical heat and humidity exchange (HME) is easy to adsorb medicine, and the barrier gas path.So just caused the aeration resistance of medical heat and humidity exchange (HME) to increase.At present, clinical usually when introducing atomization medicine, from breathing circuit, remove medical heat and humidity exchange (HME).Operation can increase the weight of medical personnel's workload like this, and increases treatment cost.In addition, removing medical heat and humidity exchange (HME) also makes the wet switch of heat be subject to environmental pollution easily.And the use of the relatively simple multi-path resistance of structure sputum device can not remove and carries out infusion of medicine under the prerequisite of medical heat and humidity exchange (HME), prolong the service time of medical heat and humidity exchange, thereby reduced the nursing cost of critically ill patient.
Simultaneously, existing heat and humidity exchange media adopt the porous material more, can guarantee unobstructed the passing through of gas, and with the water adsorption in the gas on heat and humidity exchange media, after during mechanical ventilation in, keep the moistening of gas.In case residual pathogenic bacteria is arranged in the respirator, also can enter in the patient respiration road with gas, thereby cause serious cross infection; Perhaps patient's vivo carrying pathogenic bacteria also can enter into respirator system with gas.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of medical heat of multi-path and humidity exchange (HME) that contains mutual isolation.
The technical solution adopted in the present invention is: a kind of medical heat and humidity exchange comprise base, contain core body, the loam cake of a plurality of paths and place heat and the humidity exchange media of core body; Be characterized in: described base is provided with the first port and the second port, and the cavity that extends between the first port and the second port; Be provided with a plurality of paths in the described core body, it is disconnected wherein having two paths at least; In disconnected two paths, be provided with heat and humidity exchange media in one of them path; Do not contain heat and humidity exchange media in another path.Described the first port is connected with the respiratory system of human body, described the second port is connected with armarium such as respirators, be provided with the core body that contains multi-path in the closed cavity that extends between the first port and the second port, change by the relative position between core body and the base, can open different gas passages, be provided with heat and humidity exchange media in one of them gas passage, another one is not provided with any medium in the disconnected gas passage with it; Be characterized in, in the normal during mechanical ventilation, open the gas passage of containing heat and humidity exchange media, gas is by entering the human respiratory tract again after heat and the humidity exchange media.In the time need to injecting the medicine of atomizing to patient, change the relative position of core body and base, open the gas passage of not containing any medium, carry out infusion of medicine, medicine can enter into the human respiratory tract smoothly, can not adsorbed by other materials.
After adopting technique scheme, the patient by changing the hot core body of switch and the relative position between the base of wetting, just can inject the medicine of atomizing very easily in accepting during mechanical ventilation.Do not need to remove the wet switch of heat, medicine can be by heat and the absorption of humidity exchange media yet.The present invention is simple in structure, and is easy to use, is suitable for the medical treatment and nursing processes such as clinical Intensive Care Therapy or anesthesia and uses.
Description of drawings
Fig. 1 is the schematic appearance of medical according to an embodiment of the invention heat and humidity exchange;
Fig. 2 is the top view of medical according to an embodiment of the invention heat and humidity exchange.
Fig. 3 is the structural representation of medical according to an embodiment of the invention heat and humidity exchange.
Fig. 4 is medical according to an embodiment of the invention heat and the profile of humidity exchange under aeration status.
Fig. 5 is medical according to an embodiment of the invention heat and the profile of humidity exchange under the dosing state.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is made and to further specify.
With reference to figure 1 and Fig. 2.Medical according to an embodiment of the invention heat and humidity exchange comprise base 1, contain the core body 2 of multi-path, the wet exchange media 3 of heat and loam cake 4.Wherein, base 1 is provided with the first port 111 and the second port one 12.The outer surface of core body 2 is provided with anti-skidding dentation.The upper surface of loam cake 4 is provided with the labelling 41 of indication gas communication direction.
As shown in Figure 3, the base 1 of medical according to an embodiment of the invention heat and humidity exchange is provided with base body 11, core body draw-in groove 12 and sealing ring 13, and base body 11 is provided with again the first port 111, the second port one 12 and core body container cavity 113.Core body 2 is placed in the core body container cavity 113.Core body 2 is provided with core body main body 21 and the wet exchange media ring for fixing 22 of heat, and wherein core body main body 21 is provided with the wet exchange media container cavity 213 of the first path 211, alternate path 212 and heat.The wet exchange media 3 of heat is arranged in the wet exchange media container cavity 213 of heat on the core body main body 21.
As shown in Figure 4, when the patient carries out mechanical ventilation, rotary core main body 21, alternate path 212 is communicated with the first port 111 and the second port one 12 on the base body 11, the gas of respirator system supply enters into the wet exchange media 3 of heat by the below outlet of alternate path 212, by heat and humidity exchange media 3, gas is by the wet exchange media 3 of heat, and the moisture in the gas and heat are attracted in heat and the humidity exchange media 3.By heat and humidity exchange media 3, gas enters into the below outlet of alternate path 212, then enters into another port of base 11, enters into the human respiratory tract again.
In venting process next time, the gas of respirator system supply enters into heat and the humidity exchange media 3 of the wet switch (HME) of heat, once the humidity and temperature of preserving in heat and the humidity exchange media 3 is delivered in the gas, after changing the temperature and humidity of this gas, enter in the human respiratory tract again.
As shown in Figure 5, when the patient needs to add the medicine of atomizing in during mechanical ventilation, the first port 111 and the second port one 12 that the first path 211 in the main body 21 of multi-path core body is communicated with on the base body 11, the three forms a path that does not contain the wet exchange media of heat, makes medicine be injected into the patient respiration road by this gas circuit smoothly.
Arrow among Fig. 4 and Fig. 5 represents the flow direction of gas.
The present invention is simple in structure, can guarantee that the safe and simple atomization medicine that carries out under the mechanical ventilation state injects, and in the time of the preference temperature of maintenance human body suction gas and humidity, can also stop pathogenic bacteria to enter into the human respiratory tract.Thereby significantly reduced the probability of sufferer generation malpractice in the during mechanical ventilation.
Claims (6)
1. a medical heat and humidity exchange comprise base, contain core body, the loam cake of a plurality of paths and place heat and the humidity exchange media of core body; Be characterized in: described base is provided with the first port and the second port, and the cavity that extends between the first port and the second port; Be provided with a plurality of paths in the described core body, it is disconnected wherein having two paths at least; In disconnected two paths, be provided with heat and humidity exchange media in one of them path; Do not contain heat and humidity exchange media in another path.
2. medical heat as claimed in claim 1 and humidity exchange is characterized in that, described core body can be arranged on the described base in the cavity between the first port and the second port.
3. the inner disconnected path of core body as claimed in claim 3 is characterized in that, is provided with heat and humidity exchange media in one of them path, is not provided with any filler in another path.
4. medical heat as claimed in claim 1 and humidity exchange is characterized in that, the outer surface of described loam cake is provided with the labelling that the indication gas circuit opens and closes.
5. medical heat as claimed in claim 1 and humidity exchange is characterized in that, can be provided with anti-skidding jut on the outer surface of described core body.
6. medical heat as claimed in claim 1 and humidity exchange, it is characterized in that, be sealed and matched between described loam cake, core body and the base three, except first port and the second port of base, described medical heat no longer is provided with other and the outside gas passage that is communicated with humidity exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220488959 CN202777374U (en) | 2012-09-24 | 2012-09-24 | Medical heat and humidity exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220488959 CN202777374U (en) | 2012-09-24 | 2012-09-24 | Medical heat and humidity exchange device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202777374U true CN202777374U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220488959 Expired - Fee Related CN202777374U (en) | 2012-09-24 | 2012-09-24 | Medical heat and humidity exchange device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202777374U (en) |
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2012
- 2012-09-24 CN CN 201220488959 patent/CN202777374U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20200924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |