CN2649062Y - Isolating cabin for transporting infectious patients - Google Patents
Isolating cabin for transporting infectious patients Download PDFInfo
- Publication number
- CN2649062Y CN2649062Y CNU032621221U CN03262122U CN2649062Y CN 2649062 Y CN2649062 Y CN 2649062Y CN U032621221 U CNU032621221 U CN U032621221U CN 03262122 U CN03262122 U CN 03262122U CN 2649062 Y CN2649062 Y CN 2649062Y
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- cofferdam
- negative pressure
- canister
- layer
- cabin
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Abstract
The utility model discloses an isolating chamber for transporting of infectious disease patients, which is composed by an isolating chamber body, a negative pressure system and an air purifying device. The isolating chamber body is composed by a chamber body 1, a chamber cover 2, the negative pressure system is composed by a fan 13, a control board 10, a power supply 11, a virus filtering pot 12. The isolating chamber is stable in negative pressure, high in virus filtering, good in sealing performance, reliable in safety, can meet the requirement of separating and transporting of infectious patients especially SARS patients.
Description
Technical field
This utility model relates to a kind of cofferdam, relates in particular to a kind of cofferdam that patients with infectious diseases transports that is used for.
Background technology
Cofferdam is a kind of being used for and the isolated device of external environment, can be used for different field according to the design difference.Difference according to the cabin internal pressure has malleation cofferdam and negative-pressure cofferdam, the malleation cofferdam is to prevent that the external pollution material from entering in the cabin, be mainly used in the isolating and protecting of staff when entering Polluted area, and negative-pressure cofferdam prevents that mainly to the isolation of patient with infectiousness danger undressed polluter is diffused into out of my cabin.The cofferdam that transports patients with infectious diseases also need be equipped with certain first-aid apparatus as transfusion, oxygen delivery equipment except that the spacer assembly with general cofferdam, and can observe and simple the inspection the patient.Go in the way of hospital transporting the patient, can carry out necessary emergency measures, for valuable time is striven in the rescue of critical patient.Infectious disease, the respiratory infectious diseases such as SARS of especially nearest outburst, endanger very big, escorting patients with infectious diseases in the way of hospital, general quarantine measures can not accomplish that the spittle that the patient is breathed out etc. may have communicable material and isolate fully, thereby the external environment of transporting in the way is polluted, be badly in need of a kind of cofferdam that can isolate the patient safely.Still the report that does not have at present this kind negative-pressure cofferdam.
Summary of the invention
The utility model discloses a kind of cofferdam that patients with infectious diseases transports that is used for.
This cofferdam is that a kind of and standard stretcher are supporting, short distance manpower or transport the isolated plant that infects the patient on means of transport.
Cofferdam constitutes: be made of isolation main body, negative pressure system and air cleaner.
Isolation main body is made of cabin body 1, hatchcover 2 two parts.See Fig. 1.
1, cabin body
Body 1 both ends of the surface in cabin are the plane that a rectangle combines with semicircle, and the side is the rectangle curved surface of hollow (rectangle and two bonded shapes of semicircle), and the bottom surface is a rectangle.
The front end face design of cabin body 1 has medical oxygen input interface 17, negative pressure airway interface 16, and there are canister 12, blower fan 13, set of cells 11, oxygen humidifier fixture 27 in its outside.Cabin body rear end face has pure air input interface 6.See Fig. 3.
The inboard, bottom surface of cabin body is furnished with patient's fixture 19 and medicated pillow 18, sees Fig. 4.Its outside is furnished with static line 7, fixing band 8 and the carrying nylon handle 9 with the standard stretcher.See Fig. 2.
2, hatchcover 2
The profile of hatchcover 2 is consistent with the shape that has excised body 1 side in cabin, and is provided with observation window 26.Equipped altex glove stretches in the cabin on the hatchcover 2 anterior observation windows, rolls at ordinary times to be fixed on the glove hole 3.Waterproof sealing slide fastener and anti-drop seepage cloth girdle are equipped with in the hatchcover outer.
The negative pressure system of cofferdam:
1, blower fan 13 adopts the Spiralism type high-speed fan.
2, panel 10 separates with blower fan, singly puts.
3, power supply 11 adopts lithium battery by panel 10 power supplies, and lithium battery is with constant current charger.
4, the design of canister 12 has two characteristics: the one, and canister is a double filtration design, lays by 135 ° of angles between the two-stage filtering layer, reduces the blind area area, reduces the probability that the pin hole effect produces, to reach the purpose that improves total arresting efficiency.Filter material is selected super high efficient filter (HEPA), it has very high arresting efficiency more than 99.97% to low concentration submicron order dust, and be considered to safest material in all inorfils usually, do not contain active substance, and it generally can be high one more than the order of magnitude than capturing the particulate setting of 0.3 μ m to the arresting efficiency of microorganisms such as antibacterial.The 2nd, absorption is complementary with filtration.Between 0.5～50nm, total internal surface area of micropore can be up to (700～2300) m in the unit materials according to the aperture of activated carbon capillary
2/ g and active carbon can adsorb some air microbe and kill their characteristics, are provided with activated carbon adsorption layer between two-stage HEPA filter material.This canister 12 uses the initial stage maximum pressure drop to be 30mm ± 5mm water column under the 50L/min flow, and transmitance requires to reach 0.002%～0.003%, and effectively filtration time can guarantee 16h.The environmental pollution air enters canister 12 through air inlet 20, become after filtration and purify air, pass through nonwoven polypropylene fabric hydrophobic layer 21 successively, glass layer 22, argentiferous active carbon layer 23, glass layer 22, NACF layer 24 and nonwoven polypropylene fabric hydrophobic layer 21,25 discharge from the gas outlet, see Fig. 5.
This cofferdam can with the supporting use of standard stretcher, the contaminated air that the patient produces in the cofferdam is to seepage out of my cabin, and the patient can obtain the supply of medical oxygen, observes patient's sign in the cofferdam external enwergy.
This cofferdam has negative regulation, filter efficiency height, good airproof performance, advantage such as safe and reliable, can satisfy isolate and before connect after send particularly respiratory infectious disease such as SARS patient's needs of patients with infectious diseases.
Description of drawings
Fig. 1 is the front view of negative-pressure cofferdam.
Fig. 2 is the bottom view of negative-pressure cofferdam.
Fig. 3 is the right view of negative-pressure cofferdam.
Fig. 4 is the negative-pressure cofferdam interior views.
Fig. 5 is the canister structural representation.
The specific embodiment
In Fig. 1, can see that isolation main body is made of cabin body 1, hatchcover 2 two parts.Body 1 side in cabin is the rectangle curved surface of hollow (rectangle and two bonded shapes of semicircle), hatchcover 2 is consistent with cabin body 1 side view, after covering hatchcover, hatchcover and cabin physical ability are combined closely, the hatchcover inboard is provided with Os Draconis 5, to guarantee that hatchcover is indeformable under condition of negative pressure, Os Draconis are fixed on the body of cabin by the plug-in unit on the body of cabin 4, and waterproof sealing slide fastener and anti-drop seepage cloth girdle are equipped with in the hatchcover outer.Hatchcover is provided with three observation windows 26, and equipped one pair of altex glove stretches in the cabin on the forward observation window, rolls at ordinary times to be fixed on the glove hole 3.Cabin body rear end face has pure air input interface 6.
When opening hatchcover, earlier the waterproof sealing slide fastener of hatchcover outer is drawn back, from plug-in unit 4, extract Os Draconis 5 then out, at this moment can put into or carry away the patient, when covering hatchcover, earlier Os Draconis are inserted in the plug-in unit 4, pull on the waterproof sealing slide fastener then.
In Fig. 2, can see that the bottom surface of cofferdam is a rectangle, be furnished with the static line 7, fixing band 8 and the carrying nylon handle 9 that are fixed to the standard stretcher.
In Fig. 3, the end face that can see cabin body 1 is the plane that a rectangle combines with semicircle, and design has negative pressure system above, comprise panel 10, power supply 11, canister 12 and blower fan 13, from left to right be arranged in order, power supply 11 and panel 10 are connected by lead, power by panel.Power supply and blower fan are connected to the blower fan power supply by lead, and panel separates with blower fan, singly puts.Blower fan is connected by airway 15 with canister, on canister, link to each other with negative pressure airway interface 16 on the cofferdam by airway 14, be provided with oxygen humidifier fixture 27 on blower fan top, link to each other by airway with medical oxygen input interface 17, oxygen is provided for the patient in the cofferdam.
By blower fan the contaminated air in the cofferdam is passed through negative pressure airway interface 16 during cofferdam work, airway 14 sucks in the canister 12 and purifies, cleaned air passes is discharged by blower fan 13, pure air enters cofferdam by the pure air input interface 6 of body rear end, cabin, keeps the negative pressure in the cofferdam.Blower fan 13 adopts the Spiralism type high-speed fan, power 40W, and air output 50L/min goes out one's intention as revealed in what one says malleation 〉=2300Pa, and power supply 11 is a lithium battery, direct current 12V, 10Ah, lithium battery is with constant current charger.
In Fig. 4, the inboard, bottom surface of cabin body 1 is furnished with patient's fixture 19 and medicated pillow 18, above the patient enters and is fixed in behind the cofferdam.
Contaminated air in Fig. 5 in the cofferdam enters canister 12 through air inlet 20, through nonwoven polypropylene fabric hydrophobic layer 21, glass layer 22, argentiferous active carbon layer 23, glass layer 22, NACF layer 24 and nonwoven polypropylene fabric hydrophobic layer 21 become 25 discharges from the gas outlet that purify air.
Canister 12 mainly is the air cleaning that is used for local space, when particle concentration in the air to be filtered is low, surface of filter medium can not form the dust deposit layer, can keep itself depositing the state of catching particle in long-time, and the selection of filter material can be controlled dust collecting performance.HEPA (super high efficient filter) has very high arresting efficiency more than 99.97% to low concentration submicron order dust.
On the HEPA filter material canister basis of Tangshan laboratory production, carry out following improvement by demonstration: the one, the one-level that it is original is filtered and is changed double filtration design into, and lays by 135 ° of angles between the two-stage filtering layer.Reduce the blind area area, reduce the probability that the pin hole effect produces, to reach the purpose that improves total arresting efficiency, the HEPA filter material that we select is considered to safest material in all inorfils usually, do not contain active substance, and it generally can be high one more than the order of magnitude than capturing the particulate setting of 0.3 μ m to the arresting efficiency of microorganisms such as antibacterial.The 2nd, absorption is complementary with filtration.Between (0.5～50) nm, total internal surface area of micropore can be up to (700～2300) m in the unit materials according to the aperture of activated carbon capillary
2/ g and active carbon can adsorb some air microbe and kill their characteristics, are provided with activated carbon adsorption layer between two-stage HEPA filter material.This canister 9 uses the initial stage maximum pressure drop to be 30mm ± 5mm water column under the 50L/min flow, and transmitance requires to reach 0.002%～0.003%, and effectively filtration time can guarantee 16h.The performance of canister sees Table 1.
Table 1 high efficiency particle air filter (HEPA) performance
Particle concentration flow 0.3 μ m particle trapping efficient
Testing standard
(mg/m
3) (L/min) (％)
GB2892-1995 2500 30 99.97
The air cleaner of cofferdam: directly enter in the cofferdam under the guiding of negative pressure after the air cleaning, this device adopts outsourcing piece Aearo Co.R57B-P100 to cross filter element, or employing is better than the above-mentioned substituted device of crossing filter element.
The cofferdam material:
1, the surface layer of cabin body and hatchcover and nexine
Cabin body and hatchcover surface material all adopt the two-sided calendering in T-42-5 * 5 to apply polychloroethylene film, and its performance sees Table 2.
2, cabin interlayer body
Sandwich material at the bottom of the body of cabin adopts thickness 2.0mm PVC-U sheet material, and its performance sees Table 2.If when adopting substitution material, its performance should not be lower than the requirement of table 3.
The two-sided calendering in table 2 T-42-5 * 5 applies the polychloroethylene film performance indications
Thickness adhesive strength breaking strength tearing strength
Base cloth
(mm) (N/5cm) (N/5cm) (N)
T W T W
500 * 500D 0.42 not peelable 1,500 956 164 165
Table 3 2.0mm hard polyvinyl chloride plate wood property can index
The softening 140 ℃ of heating chis of density hot strength bending strength impact strength dimension card
(g/cm3) (MPa) (MPa) (KJ/m2) point (℃) very little rate of change (%)
1.38～1.55 49 88.2 2.9 75 ±3
3, the interlayer of cabin body side surface
Material adopts thickness 1.5mm P type PVC waterproof roll, and its performance sees Table 3.If when adopting substitution material, its performance should not be lower than the requirement of table 4.
Table 4 1.5mm P type PVC waterproof roll
Hot strength elongation at break low-temperature bending shearing condition is sticking down
(MPa) (%) (20 ℃) closing property
≮ 15 ≮ 250 flawless σ
Sa〉=2N/mm
4, hatchcover observation window and nexine
It is 0.45mm transparent polyvinyl chloride calendered film that hatchcover observation window and nexine material all adopt thickness.Its performance should meet 2.1 regulations among the GB3830.
5, wounded's fixing band
It is 5cm chinlon ribbon that wounded's fixing band adopts width.
6, cabin and bearer company's tape splicing
The cabin is connected fixing band and adopts width 4cm chinlon ribbon with stretcher.
7, cabin body riveted joint fluid sealant
When sealing, cabin body riveted joint all adopt the liquid polymer sealant to strengthen sealing.
The basic mechanical design feature index of this cofferdam is as follows:
1, negative pressure system
1.1 blower fan 13 power 40W, air output 50L/min goes out one's intention as revealed in what one says malleation 〉=2300Pa.
1.2 power supply 11 is a lithium battery, 12V, 10Ah.
2, air cleaner
2.1 the canister 12 of negative pressure system is accumulated guard time 〉=8h under the testing standard condition.
2.2 fresh air is introduced arresting efficiency ≮ 99.97% of the air cleaner of cofferdam to 0.3 μ m particle.
3, cofferdam sealing
Negative Pressure Difference ≮ 40Pa when 3.1 cofferdam is unloaded; Full load Negative Pressure Difference ≮ 30Pa.
3.2 the cofferdam Negative Pressure Difference is set up time limit ≯ 4min.
4, size
4.1 the cofferdam outside dimension be 1850 * 560 * 450 (length * wide * height, mm).
4.2 the cofferdam package be of a size of 2100 * 600 * 500 (length * wide * height, mm).
5, quality: cofferdam package gross mass≤20.0kg.
6, drench with rain: meet the GJB150.8 regulation, rainfall is 6mm/min, and time 15min is non-leakage.
7, protection: cofferdam can use for 1 patient, and can inside and outside repeated disinfection use.
8, reliability
9, the MTBF (MTBF): canister 12 (under the standard conditions) ≮ 8h, blower fan ≮ 300h, battery ≮ 400h
10, service life: cofferdam is at following service life of the environmental condition 〉=5Y of this standard code.
11, fault mean repair time (MTBF): cabin body 1, hatchcover 2, slide fastener≤60min, blower fan≤90min
12, transportation property: after the expansion, cofferdam can with the supporting uses of means of transport such as ambulance, emergency tender and casualty evacuation attachment device.Volume ≯ the 0.65m of each package of cofferdam
3Length ≯ 2m; Width ≯ 0.6m; Highly ≯ 0.5m.
13, material
13.1 cabin body:
13.1.1 ectonexine waterproof material breaking strength 〉=950N/5cm; Tearing strength 〉=160N/5cm.
13.1.2 end interlayer waterproof material hot strength 〉=49MPa; Bending strength 〉=88.2MPa; Impact strength 〉=2.9kJ/m
2
13.1.3 side interlayer waterproof material hot strength 〉=15MPa; Elongation at break 〉=250%.
13.2 hatchcover
13.2.1 the waterproof material of outer and observation window should meet the 13.1.1 regulation.
13.2.2 the internal layer waterproof material is consistent with the observation window material.
Claims (8)
1, a kind of patients with infectious diseases transports cofferdam, constitute by isolation main body, negative pressure system and air cleaner, wherein isolation main body is made of cabin body (1), hatchcover (2) two parts, it is characterized in that cabin body (1) both ends of the surface are the plane that a rectangle combines with semicircle, the side is the rectangle curved surface of hollow, and the bottom surface is a rectangle; The front end face design of cabin body has medical oxygen input interface (17), negative pressure airway interface (16), and there are canister (12), blower fan (13), power supply (11), oxygen humidifier fixture in its outside; Cabin body rear end face has pure air input interface (6); The inboard, bottom surface of cabin body is furnished with patient's fixture (19) and medicated pillow (18), and its outside is furnished with static line (7) and the fixing band (8) with the standard stretcher.
2, cofferdam according to claim 1 is characterized in that the profile of hatchcover (2) is consistent with cabin body (1) side view, and is provided with observation window (26); Equipped altex glove on the anterior observation window of hatchcover stretches in the cabin.
3, cofferdam according to claim 1, it is characterized in that negative pressure system is made up of panel (10), power supply (11), canister (12) and blower fan (13), panel is connected with power supply by lead, power supply is connected with blower fan by lead, and canister is connected with negative pressure airway interface (16) with blower fan respectively by airway.
4, cofferdam according to claim 3 is characterized in that canister (12) is double filtration design, and the two-stage filtering layer is 135 ° of angles; Every grade of filtration contains high-efficiency filtering material layer and activated carbon adsorption layer.
5, cofferdam according to claim 4 is characterized in that the high-efficiency filtering material layer is glass layer (22) in the canister (12).
6, cofferdam according to claim 4 is characterized in that activated carbon adsorption layer is argentiferous active carbon layer (23) or NACF layer (24).
7,, it is characterized in that negative pressure system power supply (11) is a battery according to claim 1 or 3 described cofferdams.
8, cofferdam according to claim 7 is characterized in that supplying cell is a lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032621221U CN2649062Y (en) | 2003-05-23 | 2003-05-23 | Isolating cabin for transporting infectious patients |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032621221U CN2649062Y (en) | 2003-05-23 | 2003-05-23 | Isolating cabin for transporting infectious patients |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2649062Y true CN2649062Y (en) | 2004-10-20 |
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ID=34329328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032621221U Expired - Fee Related CN2649062Y (en) | 2003-05-23 | 2003-05-23 | Isolating cabin for transporting infectious patients |
Country Status (1)
| Country | Link |
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| CN (1) | CN2649062Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404013C (en) * | 2005-12-12 | 2008-07-23 | 武汉东湖天康科技有限公司 | Negative pressure ambulance capable of preventing cross infection of doctor and patient |
| CN104013498A (en) * | 2014-06-26 | 2014-09-03 | 中国人民解放军第三军医大学第一附属医院 | Chamber transfer stretcher |
| CN104188767A (en) * | 2014-09-03 | 2014-12-10 | 浙江省疾病预防控制中心 | Isolation stretcher |
| CN106821655A (en) * | 2017-02-06 | 2017-06-13 | 王丽丽 | A kind of Novel pediatric hyperbaric oxygen chamber |
| CN113397872A (en) * | 2021-06-22 | 2021-09-17 | 上海医达医疗器械有限公司 | Bidirectional regulating positive and negative pressure connecting valve complete machine |
-
2003
- 2003-05-23 CN CNU032621221U patent/CN2649062Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404013C (en) * | 2005-12-12 | 2008-07-23 | 武汉东湖天康科技有限公司 | Negative pressure ambulance capable of preventing cross infection of doctor and patient |
| CN104013498A (en) * | 2014-06-26 | 2014-09-03 | 中国人民解放军第三军医大学第一附属医院 | Chamber transfer stretcher |
| CN104188767A (en) * | 2014-09-03 | 2014-12-10 | 浙江省疾病预防控制中心 | Isolation stretcher |
| CN106821655A (en) * | 2017-02-06 | 2017-06-13 | 王丽丽 | A kind of Novel pediatric hyperbaric oxygen chamber |
| CN113397872A (en) * | 2021-06-22 | 2021-09-17 | 上海医达医疗器械有限公司 | Bidirectional regulating positive and negative pressure connecting valve complete machine |
| CN113397872B (en) * | 2021-06-22 | 2022-04-19 | 上海医达医疗器械有限公司 | Bidirectional regulating positive and negative pressure connecting valve complete machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041020 |