CN116831634A - Disposable medical human body gas analysis acquisition and use method - Google Patents
Disposable medical human body gas analysis acquisition and use method Download PDFInfo
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- CN116831634A CN116831634A CN202310887672.8A CN202310887672A CN116831634A CN 116831634 A CN116831634 A CN 116831634A CN 202310887672 A CN202310887672 A CN 202310887672A CN 116831634 A CN116831634 A CN 116831634A
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000004868 gas analysis Methods 0.000 title claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000001727 in vivo Methods 0.000 claims abstract description 6
- 238000001179 sorption measurement Methods 0.000 claims description 52
- 239000012528 membrane Substances 0.000 claims description 39
- 230000008878 coupling Effects 0.000 claims description 14
- 238000010168 coupling process Methods 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 206010002091 Anaesthesia Diseases 0.000 claims description 3
- 230000037005 anaesthesia Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 claims 1
- 206010011409 Cross infection Diseases 0.000 abstract description 6
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 6
- 238000007664 blowing Methods 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 3
- 241000700605 Viruses Species 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/1402—Check valves with flexible valve members having an integral flexible member cooperating with a plurality of seating surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/16—Check valves with flexible valve members with tongue-shaped laminae
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B2010/0083—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements for taking gas samples
- A61B2010/0087—Breath samples
Abstract
The invention discloses a disposable medical human body gas analysis, collection and use method, which comprises an inhalation process and a subsequent exhalation process carried out by a patient by utilizing a disposable gas collector; the inspiration process comprises the following steps: when a patient performs in-vivo expiration collection, the mouthpiece is placed in the mouth and is closed, then inspiration is performed, external gas enters an inspiration gas channel provided with a filter element through an air inlet hole on the gas collector, then enters a tail end gas channel, and then enters the patient mouth; exhalation process: after the inspiration is finished, the patient exhales, and the expired gas enters the detection device through the expiration gas channel after passing through the end gas channel; the invention can form a disposable medical device, has lower comprehensive cost, is more convenient to operate and transport, and simultaneously avoids possible cross infection.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a method for using a medical human body gas analysis collector.
Background
When the existing instrument collects the exhaled air, the existing instrument is provided with a collecting handle along with the instrument, and a disposable blowing nozzle is matched with the handle for use, so that the existing handle has a complex structure and large volume, and occupies extra space when transported along with equipment; meanwhile, the adsorption material filled in the handle has timeliness or usage times limitation, and needs to be replaced periodically, so that the comprehensive overall cost is increased undoubtedly; especially, the collection handle can be used repeatedly, and when the next patient continues to use after the previous patient uses, the original handle can have bacteria or virus residues, so that cross infection is very likely to be caused, and other modes and methods are needed to be found to solve the corresponding problems.
Disclosure of Invention
In view of this, there is a need to overcome at least one of the above-described drawbacks of the prior art. The invention provides a disposable medical human body gas analysis, collection and use method, which comprises the following steps:
an inhalation process and a subsequent exhalation process carried out by a patient by using the disposable gas collector;
the inspiration process comprises the following steps: when a patient performs in-vivo expiration collection, the mouthpiece is placed in the mouth and is closed, then inspiration is performed, external gas enters an inspiration gas channel provided with a filter element through an air inlet hole on the gas collector, then enters a tail end gas channel, and then enters the patient mouth;
exhalation process: after the inspiration is finished, the patient exhales, and the expired gas enters the detection device through the expiration gas channel after passing through the end gas channel;
the air inlet is provided with a one-way valve membrane comprising a switch piece covering the air inlet, when in inhalation, the switch piece is opened due to external air flow, the external air flow enters a patient through the air inlet, and when in exhalation, the switch piece is subjected to pressure during exhalation to close the air inlet.
Wherein the disposable gas collector comprises: the device comprises a collector upper shell, a collector lower shell, an adsorption filter element, a filter element and a one-way valve membrane, wherein the collector lower shell is connected with the lower end of the collector upper shell; the collector upper shell is provided with an upper shell gas outer channel comprising a mouthpiece, an upper shell gas inner channel arranged on the inner side of the upper shell gas outer channel, and an upper shell outer connecting support arranged on the outer side of the upper shell gas outer channel; the collector lower shell comprises a lower shell outer connecting support connected with the upper shell outer connecting support, an air inlet hole is formed in the periphery of the outer side of the lower shell outer connecting support, and a lower shell main cavity structure is arranged in the middle of the lower shell outer connecting support, a lower shell gas inner channel connected with the upper shell gas inner channel is formed in the middle of the lower shell main cavity structure, and the lower shell gas inner channel extends out of the lower shell main cavity structure; the adsorption filter element is arranged on the inner side of the main cavity structure of the lower shell, the upper part of the adsorption filter element is provided with an upper cavity provided with the filter element, the lower structure of the outer channel of the upper shell gas is inserted into the adsorption filter element, and the adsorption filter element and the filter element are separated on the inner side and the outer side of the lower structure of the outer channel of the upper shell gas; the one-way valve membrane is a hollow structure membrane and comprises a switch sheet which is arranged on the hollow structure and used for opening and closing the air inlet hole.
According to the prior art in the background technology of the patent, the prior art is provided with a collecting handle along with an instrument, and a disposable blowing nozzle is matched with the handle for use, so that the prior handle has a complex structure and large volume, and occupies extra space when being transported along with equipment; meanwhile, the adsorption material filled in the handle has timeliness or use times limitation, and needs to be replaced periodically, so that the cost is increased undoubtedly; because the collecting handle can be used repeatedly, when the next patient continues to use after the previous patient uses, the original handle can have bacteria or virus residues, so that cross infection is most likely to be caused; the disposable medical human body gas analysis, collection and use method disclosed by the invention effectively collects the gas exhaled by the human body through the inhalation process and the subsequent exhalation process carried out by using the disposable gas collector, and the inhalation process comprises the following steps of: when a patient performs in-vivo expiration collection, the mouthpiece is placed in the mouth and is closed, then inspiration is performed, external gas enters an inspiration gas channel provided with a filter element through an air inlet hole on the gas collector, then enters a tail end gas channel, and then enters the patient mouth; exhalation process: after the patient inhales, the patient exhales, and the exhaled gas passes through the tail end gas channel and then enters the detection equipment through the exhaled gas channel, so that the original human body gas collection can be realized more conveniently and rapidly at low cost without cross infection.
Wherein, the inner channel of the lower shell gas of the collector lower shell is communicated with external equipment, when in suction, external air flow passes through an air inlet hole on the outer connecting support of the lower shell and pushes open a switch piece pressed above the air inlet hole by utilizing air pressure generated by suction, and enters a first gas channel and a second gas channel with an adsorption filter element, then the air enters the upper shell air outer channel or the tail end air channel through a gap or a pore canal between the upper shell air outer channel and the upper shell air inner channel through a second air channel with a filter element, and enters a human body to finish the air suction action; when the patient exhales, the human body exhales outwards, the switch piece of the one-way valve diaphragm is pressed against the air inlet hole of the lower shell outer joint support by the air pressure formed by the air flow, the air exhaled by the human body can only enter the detection equipment through the tail end air channel of the upper shell air outer channel and the lower shell air inner channel communicated with the upper shell air inner channel in sequence, the expiration action is completed, and then the detection equipment detects and analyzes the patient according to the composition in the expiration.
In addition, the disposable medical human body gas analysis, collection and use method disclosed by the invention also has the following additional technical characteristics:
further, the disposable gas collector includes a collector upper housing having the mouthpiece; the gas collector comprises a collector upper shell, a collector lower shell, a filter element and a gas inlet, wherein the collector lower shell is connected with the lower end of the collector upper shell, the filter element is arranged in the gas collector, the filter element comprises an adsorption filter element arranged in the collector lower shell, a filter element arranged at the upper part of the adsorption filter element, and a one-way valve membrane arranged between the collector upper shell and the collector lower shell and used for opening and closing a gas path, and an upper shell gas inner channel is arranged in the collector upper shell; the gas suction channel comprises the gas inlet hole, a first gas channel, a second gas channel, an outer channel of the upper shell gas inner channel and the tail end gas channel, wherein the first gas channel is formed by an upper shell gas outer channel supporting wall of the upper shell of the collector and a lower shell main cavity structure supporting wall of the lower shell of the collector, the second gas channel is formed by an upper shell gas outer channel supporting wall of the upper shell of the collector and a lower shell gas inner channel supporting wall of the lower shell of the collector, the adsorption filter element is arranged in the first gas channel and the second gas channel, and the upper part of the adsorption filter element of the second gas channel is provided with the filter element; the expiration gas channel comprises the end gas channel and the upper shell gas inner channel which are arranged at the upper part of the upper shell gas outer channel of the collector upper shell and the lower shell gas inner channel of the collector lower shell, and the upper shell gas outer channel comprises the end gas channel and the second gas channel.
Further, the collector upper shell further comprises an upper shell outer connecting support arranged outside the upper shell gas outer channel; the collector lower shell further comprises a lower shell outer connecting support connected with the upper shell outer connecting support, the air inlet hole is arranged at the periphery of the outer side of the lower shell outer connecting support, and a lower shell main cavity structure is arranged in the middle of the lower shell outer connecting support, the lower shell gas inner channel is arranged in the middle of the lower shell main cavity structure and communicated with the upper shell gas inner channel, and the lower shell gas inner channel extends out of the lower shell main cavity structure; the upper part of the adsorption filter element is provided with an upper cavity for arranging the filter element, the lower supporting wall of the upper shell gas outer channel is inserted into a gap in the adsorption filter element, the filter element is arranged in the second gas channel, and the adsorption filter element is also provided with an adsorption filter element through hole for being inserted into the lower shell gas inner channel; the one-way valve membrane is a hollow structure membrane and comprises a switch sheet which is arranged on the hollow structure and used for opening and closing the air inlet hole.
Further, the upper shell gas inner channel is arranged at the joint of the upper part of the upper shell gas outer channel and the lower part of the upper shell gas outer channel, the lower surface of the upper shell gas inner channel is attached to the upper surface of the filter element, and the joint part of the upper shell gas inner channel and the upper shell gas outer channel is provided with a pore channel through which gas can pass.
Further, the upper shell gas inner passage and the upper shell gas outer passage coupling portion are a plurality of vertically disposed coupling plates.
Furthermore, the lower shell outer joint support is provided with an upward lower shell outer edge, the lower shell outer edge forms a diaphragm chamber for arranging the one-way valve diaphragm, the upper shell outer joint support is provided with a joint sealing structure matched with the lower shell outer edge, the joint sealing structure comprises a downward upper shell outer edge, the one-way valve diaphragm is arranged in the diaphragm chamber, when the collector upper shell is combined with the collector lower shell in a joint mode, the upper shell outer edge presses the one-way valve diaphragm, the periphery of the one-way valve diaphragm is pressed, the diaphragm can be ensured not to be fixed to move, further a better detection effect is formed during expiration, meanwhile, the lower side of a switch piece of the one-way valve diaphragm is provided with a wedge-shaped structure, the lower side of the switch piece is matched with an air inlet hole better, and the expired air can be ensured to completely enter the detection equipment during expiration.
Still further, the adsorption cartridge includes an upper cavity in which the filter cartridge is disposed, and a slit in which a wall of the lower portion of the upper housing gas outer passage is inserted, forming a first gas passage communicating the intake hole and located between the lower housing of the collector and the lower portion of the upper housing gas outer passage, and a second gas passage communicating with the first gas passage and located between the lower portion of the upper housing gas outer passage and the lower housing gas inner passage, the second gas passage communicating with a duct outside the upper housing gas inner passage.
Still further, the filter element is arranged between the lower shell gas inner channel and the upper shell gas outer channel, and is positioned in the upper cavity of the adsorption filter element, and the lower end surface of the filter element is attached to the bottom end surface in the upper cavity.
Furthermore, the outer side of the upper shell of the collector also comprises an external connection structure which is connected with an anesthesia mask or a vital capacity blowing nozzle.
Still further, the outer joint support of inferior valve still includes the location fixed knot that is used for locating the check valve diaphragm, the check valve diaphragm has with location fixed orifices of location structure cooperation, the switch piece include switch head and with the switch joint structure of check valve diaphragm main part hookup, switch joint structure is the size be less than the small joint structure that the switch piece opened and closed of switch head size.
Preferably, the switch sheet and the fixed positioning holes are uniformly distributed on the one-way valve membrane.
Furthermore, the collector upper shell, the collector lower shell, the filter element, the adsorption filter element and the one-way valve membrane are all of circular or annular structures.
Further, the upper shell gas outer channel comprises an upper shell gas outer channel upper portion (namely a tail end gas channel) and an upper shell gas outer channel lower portion, the upper shell gas inner channel is arranged at a joint of the upper shell gas outer channel upper portion and the upper shell gas outer channel lower portion, the lower surface of the upper shell gas inner channel is in sealing fit with the upper surface of the filter element, the upper shell gas inner channel and the upper shell gas outer channel joint portion are provided with gas-passing pore channels, or the upper shell gas inner channel is nested on the lower shell gas inner channel and is not connected with the upper shell gas outer channel, namely the upper shell gas inner channel is an independent piece.
Further, the number of the switch sheets on the one-way valve membrane is more than or equal to four.
Further, the area of the switch sheet of the one-way valve membrane is more than or equal to one fourth of the area of the one-way valve membrane, and the cross section area of the air inlet hole is more than or equal to one half of the area of the switch sheet.
Further, the one-way valve membrane is an elastic membrane, the thickness is greater than or equal to 0.5mm, the upper limit of the thickness is obtained through experiments according to the integral structure, the outer diameter is greater than or equal to 10 and less than or equal to 80mm, the specific value can be determined by the size of the integral structure, and the inner diameter is set in the same way.
Further, the upper shell gas outer channel and the upper shell gas inner channel are separate pieces, a rib plate is arranged on the outer side of the upper shell gas inner channel, a channel matched with the rib plate is arranged on the inner side of the upper shell gas outer channel, and the upper shell gas inner channel is inserted into the upper shell gas outer channel through the channel, so that the overall cost can be further reduced.
Further, the collector upper shell and the collector lower shell are of organic plastic or metal structures.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic overall construction of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic illustration of the diaphragm structure of a check valve in one embodiment of the present invention;
FIG. 4 is a schematic view of the lower shell structure of the collector according to one embodiment of the present invention;
FIG. 5 is a schematic diagram of a cross-sectional structure of an upper shell of a harvester according to one embodiment of the invention;
FIG. 6 is a schematic diagram of an adsorption cartridge according to one embodiment of the invention;
FIG. 7 is a schematic illustration of an inhalation process according to one embodiment of the present invention;
FIG. 8 is a schematic illustration of an exhalation process according to one embodiment of the present invention;
the device comprises a collector upper shell, an 11 external connection structure, a 12 upper shell external connection support, a 121 upper shell outer edge, a 13 upper shell gas outer channel, a 131 tail end gas channel, a 14 upper shell gas inner channel, a 15 rib plate, a 2 collector lower shell, a 21 lower shell main cavity structure, a 211 first gas channel, a 212 second gas channel, a 22 lower shell external connection support, a 221 lower shell outer edge, a 222 positioning fixing structure, a 223 air inlet hole, a 23 lower shell gas inner channel, a 3 one-way valve membrane, a 31 positioning fixing hole, a 32 switch sheet, a 33 switch connection structure, a 4 adsorption filter element, a 41 gap (for being inserted into the upper shell gas outer channel outer wall of the collector upper shell), a 42 adsorption filter element through hole (for being inserted into the lower shell gas inner channel) and a 5 filtration filter element;
wherein the arrowed lines in fig. 7, 8 identify gas flow direction and X identifies the relevant channel closure.
Description of the embodiments
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "upper," "lower," "bottom," "top," "front," "rear," "inner," "outer," "transverse," "vertical," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "connected," "coupled," "mated" and "mated" are to be construed broadly, and may be, for example, fixedly coupled, integrally coupled, or detachably coupled; may be a communication between the interiors of two elements; can be directly connected or indirectly connected through an intermediate medium; the "mating" may be a face-to-face or a point-to-face or line-to-face mating, and also includes a mating of the axes of the holes, as would be understood by one of ordinary skill in the art, in a particular sense by the terms described above.
The multi-robot scheduling method for inspection robots and fire extinguishing robot systems of the present invention will be described with reference to the accompanying drawings, in which fig. 1 is a schematic overall structure of an embodiment of the present invention; FIGS. 2-6 are schematic views of the construction of components of an embodiment of the present invention; fig. 7 and 8 are schematic diagrams of inhalation and exhalation processes according to embodiments of the present invention.
As shown in fig. 7 and 8, according to an embodiment of the present invention, it includes: an inhalation process and a subsequent exhalation process carried out by a patient by using the disposable gas collector;
the inspiration process comprises the following steps: when the patient performs in-vivo expiration collection, the mouthpiece is placed in the mouth and closed, and then inhalation is performed, and external air enters an inhalation air channel provided with a filter element through an air inlet 223 on the air collector, then enters an end air channel 131 and then enters the patient mouth;
exhalation process: after the inspiration is finished, the patient exhales, and the expired gas passes through the end gas channel 131 and enters the detection device through the expired gas channel;
the inhalation gas channel and the exhalation gas channel are separated by an isolation structure between the inhalation gas channel and the exhalation gas channel, but the inhalation gas channel and the exhalation gas channel are communicated by the tail gas channel 131, a one-way valve membrane 3 comprising a switch sheet 32 covering the air inlet 223 is arranged on the air inlet 223, when inhaling, the switch sheet 32 is opened due to external air flow, the external air flow passes through the inhalation gas channel and enters a patient, when exhaling, the switch sheet 32 is subjected to pressure when exhaling, and the air inlet 223 is closed.
Wherein the disposable gas collector comprises: the device comprises a collector upper shell 1, a collector lower shell 2 connected with the lower end of the collector upper shell 1, an adsorption filter element 4 arranged in the collector lower shell 2, a filter element 5 arranged at the upper part of the adsorption filter element 4, and a one-way valve membrane 3 arranged between the collector upper shell 1 and the collector lower shell 2 and used for opening and closing an air path; the collector upper shell 1 is provided with an upper shell gas outer channel 13 comprising a mouthpiece, an upper shell gas inner channel 14 arranged on the inner side of the upper shell gas outer channel 13, and an upper shell outer joint support 12 arranged on the outer side of the upper shell gas outer channel 13; the collector lower shell 2 comprises a lower shell outer connecting support 22 connected with the upper shell outer connecting support 12, an air inlet hole 223 is formed in the periphery of the outer side of the lower shell outer connecting support 22, and a lower shell main cavity structure 21 is arranged in the middle of the lower shell outer connecting support 22, a lower shell air inner channel 23 connected with the upper shell air inner channel 14 is formed in the middle of the lower shell main cavity structure 21, and the lower shell air inner channel 23 extends out of the lower shell main cavity structure 21; the adsorption filter element 4 is arranged on the inner side of the lower shell main cavity structure 21, the upper part of the adsorption filter element 4 is provided with an upper cavity provided with the filter element 5, the lower structure of the upper shell gas outer channel 13 is inserted into the adsorption filter element 4, and the adsorption filter element 4 and the filter element 5 are separated on the inner side and the outer side of the lower structure of the upper shell gas outer channel 13; the check valve membrane 3 is a hollow structure membrane and comprises a switch sheet 32 arranged on the hollow structure for opening and closing the air inlet 223.
According to the prior art in the background technology of the patent, the prior art is provided with a collecting handle along with an instrument, and a disposable blowing nozzle is matched with the handle for use, so that the prior handle has a complex structure and large volume, and occupies extra space when being transported along with equipment; meanwhile, the adsorption material filled in the handle has timeliness or use times limitation, and needs to be replaced periodically, so that the cost is increased undoubtedly; because the collecting handle can be used repeatedly, when the next patient continues to use after the previous patient uses, the original handle can have bacteria or virus residues, so that cross infection is most likely to be caused; the disposable medical human body gas analysis, collection and use method disclosed by the invention effectively collects the gas exhaled by the human body through the inhalation process and the subsequent exhalation process carried out by using the disposable gas collector, and the inhalation process comprises the following steps of: when the patient performs in-vivo expiration collection, the mouthpiece is placed in the mouth and closed, and then inhalation is performed, and external air enters an inhalation air channel provided with a filter element through an air inlet 223 on the air collector, then enters an end air channel 131 and then enters the patient mouth; exhalation process: after the patient inhales, he exhales, and the exhaled gas passes through the tail end gas channel 131 and then enters the detection device through the exhaled gas channel, so that the original human body gas collection can be realized more conveniently and rapidly at low cost without cross infection.
Wherein, the lower shell gas inner channel 23 of the collector lower shell 2 is communicated with external equipment, when in inspiration, external air flow passes through an air inlet 223 on the lower shell outer connecting support 22 and pushes up a switch piece 32 pressed above the air inlet 223 by utilizing air pressure generated by inspiration, enters a first gas channel 211 and a second gas channel 212 with an adsorption filter element 4, passes through the second gas channel 212 with a filter element 5, enters an upper shell gas outer channel 13 or a tail end gas channel 131 through a gap 41 or a pore canal between the upper shell gas outer channel 13 and the upper shell gas inner channel 14, and enters a human body to finish inspiration; during exhalation, the human body exhales outwards, the switch piece 32 of the one-way valve membrane 3 is pressed against the air inlet 223 of the lower shell outer joint support 22 by air pressure formed by air flow, and the air exhaled by the human body can only enter the detection equipment through the tail end air channel 131 of the upper shell air outer channel 13 and the lower shell air inner channel 23 communicated with the upper shell air inner channel 14 in sequence to complete the exhalation action, and then the detection equipment detects and analyzes the patient according to the composition in the exhalation.
In addition, the disposable medical human body gas analysis, collection and use method disclosed by the invention also has the following additional technical characteristics:
further, the disposable gas collector comprises a collector upper shell 1 with the mouthpiece; the gas collector comprises a collector lower shell 2 connected with the lower end of a collector upper shell 1, and a filter element arranged in the gas collector, wherein the filter element comprises an adsorption filter element 4 arranged in the collector lower shell 2, a filter element 5 arranged at the upper part of the adsorption filter element 4, and a one-way valve membrane 3 arranged between the collector upper shell 1 and the collector lower shell 2 and used for opening and closing a gas path, and an upper shell gas inner channel 14 is arranged in the collector upper shell 1; the air suction gas channel comprises the air inlet hole 223, a first gas channel 211, a second gas channel 212, an outer pore canal of the upper shell gas inner channel 14 and the tail end gas channel 131, wherein the first gas channel 211 is formed by an upper shell gas outer channel 13 supporting wall of the upper shell 1 of the collector and a lower shell main cavity structure 21 supporting wall of the lower shell 2 of the collector, the second gas channel 212 is formed by an upper shell gas outer channel 13 supporting wall of the upper shell 1 of the collector and a lower shell gas inner channel 23 supporting wall of the lower shell 2 of the collector, the first gas channel 211 and the second gas channel 212 are internally provided with the adsorption filter element 4, and the upper part of the adsorption filter element 4 of the second gas channel 212 is provided with the filter element 5; the exhalation gas passage is constituted by the end gas passage 131 and the upper case gas inner passage 14 in the upper portion of the upper case gas outer passage 13 of the collector upper case 1 and the lower case gas inner passage 23 of the collector lower case 2, and the upper case gas outer passage 13 includes the end gas passage 131 and the second gas passage 212.
Further, the collector upper shell 1 further comprises an upper shell outer joint support 12 arranged outside the upper shell gas outer channel 13; the collector lower shell 2 further comprises a lower shell outer connecting support 22 connected with the upper shell outer connecting support 12, the air inlet holes 223 are arranged on the periphery of the outer side of the lower shell outer connecting support 22, and a lower shell main cavity structure 21 is arranged in the middle of the lower shell outer connecting support 22, the lower shell air inner channel 23 is arranged in the middle of the lower shell main cavity structure 21 and communicated with the upper shell air inner channel 14, and the lower shell air inner channel 23 extends out of the lower shell main cavity structure 21; the upper part of the adsorption filter element 4 is provided with an upper cavity for arranging the filter element 5, the lower supporting wall of the upper shell gas outer channel 13 is inserted into a gap 41 in the adsorption filter element 4, the filter element 5 is arranged in the second gas channel 212, and the adsorption filter element 4 is also provided with an adsorption filter element 4 through hole for being inserted into the lower shell gas inner channel 23; the check valve membrane 3 is a hollow structure membrane and comprises a switch sheet 32 arranged on the hollow structure for opening and closing the air inlet 223.
Further, the upper shell gas inner channel 14 is arranged at the junction between the upper part of the upper shell gas outer channel 13 and the lower part of the upper shell gas outer channel 13, the lower surface of the upper shell gas inner channel 14 is attached to the upper surface of the filter element 5, and the junction part of the upper shell gas inner channel 14 and the upper shell gas outer channel 13 is provided with a pore canal which can pass through gas.
Further, the coupling portions of the upper shell gas inner passage 14 and the upper shell gas outer passage 13 are a plurality of vertically arranged coupling plates.
Further, the lower casing outer coupling support 22 has an upward lower casing outer edge 221, the lower casing outer edge 221 forms a diaphragm chamber in which the one-way valve diaphragm 3 is disposed, the upper casing outer coupling support 12 has a coupling sealing structure matched with the lower casing outer edge 221, the combined sealing structure includes a downward upper casing outer edge 121, the one-way valve diaphragm 3 is disposed in the diaphragm chamber, when the upper casing 1 of the collector is coupled with the lower casing 2 of the collector, the upper casing outer edge 121 presses the one-way valve diaphragm 3, and the periphery of the one-way valve diaphragm 3 is pressed, so that the diaphragm is fixed and does not move, thereby forming a better detection effect during exhalation, and meanwhile, the lower side of the switch sheet 32 of the one-way valve diaphragm 3 has a wedge structure, which can be matched with the air inlet hole 223 better, and can ensure that the exhaled air completely enters the detection device during exhalation.
Still further, the adsorption cartridge 4 includes the upper cavity in which the filter cartridge 5 is disposed, and a slit 41 for insertion into a wall of the lower part of the upper housing gas outer passage 13, forming a first gas passage 211 communicating with the gas inlet 223 and located between the collector lower housing 2 and the lower part of the upper housing gas outer passage 13, and a second gas passage 212 communicating with the first gas passage 211 and located between the lower part of the upper housing gas outer passage 13 and the lower housing gas inner passage 23, the second gas passage 212 communicating with a duct outside the upper housing gas inner passage 14.
Still further, the filter element 5 is disposed between the lower case gas inner passage 23 and the upper case gas outer passage 13 and is located in the upper cavity of the adsorption element 4, and a lower end surface of the filter element 5 is bonded to a bottom end surface in the upper cavity.
Further, the outer side of the collector upper shell 1 also comprises an external connection structure 11 which is connected with an anesthesia mask or a vital capacity blowing nozzle.
Still further, the lower case outer coupling support 22 further includes a positioning and fixing structure 222 for positioning the check valve membrane 3, the check valve membrane 3 has a positioning and fixing hole 31 matched with the positioning structure, the switch plate 32 includes a switch head and a switch coupling structure 33 coupled with the main body of the check valve membrane 3, and the switch coupling structure 33 is a small coupling structure having a size smaller than that of the switch head and facilitating opening and closing of the switch plate 32.
Preferably, the switch sheet 32 and the fixed positioning holes are uniformly distributed on the check valve membrane 3.
Furthermore, the collector upper shell 1, the collector lower shell 2, the filter element 5, the adsorption filter element 4 and the one-way valve membrane 3 are all in a circular or annular structure.
Further, the upper shell gas outer channel 13 includes an upper portion (i.e., a terminal gas channel 131) of the upper shell gas outer channel 13 and a lower portion of the upper shell gas outer channel 13, the upper shell gas inner channel 14 is disposed at a junction between the upper portion of the upper shell gas outer channel 13 and the lower portion of the upper shell gas outer channel 13, the lower surface of the upper shell gas inner channel 14 is in sealing fit with the upper surface of the filter element 5, and a junction portion between the upper shell gas inner channel 14 and the upper shell gas outer channel 13 has a gas passage, or the upper shell gas inner channel 14 is nested on the lower shell gas inner channel 23 and is not connected with the upper shell gas outer channel 13, i.e., the upper shell gas inner channel 14 is a separate piece.
Further, the number of the switch sheets 32 on the check valve film 3 is more than or equal to four.
Further, the area of the opening and closing piece 32 of the check valve film 3 is equal to or larger than one fourth of the area of the check valve film 3, and the cross-sectional area of the air inlet 223 is equal to or larger than one half of the area of the opening and closing piece 32.
Further, the one-way valve membrane 3 is an elastic membrane, the thickness is greater than or equal to 0.5mm, the upper limit of the thickness is obtained through experiments according to the integral structure, the outer diameter is greater than or equal to 10 and less than or equal to 80mm, the specific value can be determined by the size of the integral structure, and the inner diameter is set in the same way.
Further, the upper shell gas outer channel 13 and the upper shell gas inner channel 14 are separate pieces, a rib plate 15 is arranged at the outer side of the upper shell gas inner channel 14, a channel matched with the rib plate 15 is arranged at the inner side of the upper shell gas outer channel 13, and the upper shell gas inner channel 14 is inserted into the upper shell gas outer channel 13 through the channel, so that the overall cost can be further reduced.
Further, the collector upper shell 1 and the collector lower shell 2 are of organic plastic or metal structures.
Any reference to "one embodiment," "an exemplary embodiment," etc., means that a particular element, structure, or feature described in connection with the embodiment is included in at least one embodiment of the invention. This schematic representation throughout this specification does not necessarily refer to the same embodiment. Moreover, when a particular element, structure, or feature is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such element, structure, or feature in connection with other ones of the embodiments.
While the detailed description of the invention has been made with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. In particular, reasonable variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the foregoing disclosure, the drawings and the claims without departing from the spirit of the invention. Except insofar as variations and modifications in the component parts and/or arrangements are described in the appended claims and the equivalents thereof.
Claims (12)
1. The disposable medical human body gas analysis, collection and use method is characterized by comprising an inhalation process and a subsequent exhalation process which are carried out by a patient by utilizing a disposable gas collector;
the inspiration process comprises the following steps: when a patient performs in-vivo expiration collection, the mouthpiece is placed in the mouth and is closed, then inspiration is performed, external gas enters an inspiration gas channel provided with a filter element through an air inlet hole on the gas collector, then enters a tail end gas channel, and then enters the patient mouth;
exhalation process: after the inspiration is finished, the patient exhales, and the expired gas enters the detection device through the expiration gas channel after passing through the end gas channel;
the air inlet is provided with a one-way valve membrane comprising a switch piece covering the air inlet, when in inhalation, the switch piece is opened due to external air flow, the external air flow enters a patient through the air inlet, and when in exhalation, the switch piece is subjected to pressure during exhalation to close the air inlet.
2. The disposable medical body gas analysis collection method of claim 1 wherein the disposable gas collector comprises a collector upper housing having the mouthpiece; the gas collector comprises a collector upper shell, a collector lower shell, a filter element and a gas inlet, wherein the collector lower shell is connected with the lower end of the collector upper shell, the filter element is arranged in the gas collector, the filter element comprises an adsorption filter element arranged in the collector lower shell, a filter element arranged at the upper part of the adsorption filter element, and a one-way valve membrane arranged between the collector upper shell and the collector lower shell and used for opening and closing a gas path, and an upper shell gas inner channel is arranged in the collector upper shell;
the gas suction channel comprises the gas inlet hole, a first gas channel, a second gas channel, an outer channel of the upper shell gas inner channel and the tail end gas channel, wherein the first gas channel is formed by an upper shell gas outer channel supporting wall of the upper shell of the collector and a lower shell main cavity structure supporting wall of the lower shell of the collector, the second gas channel is formed by an upper shell gas outer channel supporting wall of the upper shell of the collector and a lower shell gas inner channel supporting wall of the lower shell of the collector, the adsorption filter element is arranged in the first gas channel and the second gas channel, and the upper part of the adsorption filter element of the second gas channel is provided with the filter element;
the expiration gas channel comprises the end gas channel and the upper shell gas inner channel which are arranged at the upper part of the upper shell gas outer channel of the collector upper shell and the lower shell gas inner channel of the collector lower shell, and the upper shell gas outer channel comprises the end gas channel and the second gas channel.
3. The disposable medical body gas analysis collection method of claim 2 wherein the collector upper shell further comprises an upper shell outer coupling support disposed outside the upper shell gas outer channel;
the collector lower shell further comprises a lower shell outer connecting support connected with the upper shell outer connecting support, the air inlet hole is arranged at the periphery of the outer side of the lower shell outer connecting support, and a lower shell main cavity structure is arranged in the middle of the lower shell outer connecting support, the lower shell gas inner channel is arranged in the middle of the lower shell main cavity structure and communicated with the upper shell gas inner channel, and the lower shell gas inner channel extends out of the lower shell main cavity structure;
the upper part of the adsorption filter element is provided with an upper cavity for arranging the filter element, the lower supporting wall of the upper shell gas outer channel is inserted into a gap in the adsorption filter element, the filter element is arranged in the second gas channel, and the adsorption filter element is also provided with an adsorption filter element through hole for being inserted into the lower shell gas inner channel;
the one-way valve membrane is a hollow structure membrane and comprises a switch sheet which is arranged on the hollow structure and used for opening and closing the air inlet hole.
4. The disposable medical human body gas analysis and collection using method according to claim 2, wherein the upper shell gas inner channel is arranged at a joint of the upper part of the upper shell gas outer channel and the lower part of the upper shell gas outer channel, the lower surface of the upper shell gas inner channel is attached to the upper surface of the filter element, and the joint part of the upper shell gas inner channel and the upper shell gas outer channel is provided with a pore channel through which gas can pass.
5. The method of claim 2, wherein the upper shell gas inner channel and the upper shell gas outer channel coupling portion are a plurality of vertically disposed coupling plates.
6. The disposable medical body gas analysis and collection method according to claim 2, wherein the lower shell outer joint support has an upward lower shell outer edge, the lower shell outer edge forms a diaphragm chamber in which the one-way valve diaphragm is disposed, the upper shell outer joint support has a joint sealing structure matched with the lower shell outer edge, the joint sealing structure comprises a downward upper shell outer edge, the one-way valve diaphragm is disposed in the diaphragm chamber, and the upper shell outer edge presses the one-way valve diaphragm when the upper shell and the lower shell of the collector are joined.
7. The disposable medical human body gas analysis collecting and using method according to claim 2, wherein the adsorption filter element comprises an upper cavity of which the upper part is used for arranging the filter element, a slit used for being inserted into a shell wall of the lower part of the upper shell gas outer channel, a first gas channel which is communicated with the air inlet hole and is positioned between the lower shell of the collector and the lower part of the upper shell gas outer channel, and a second gas channel which is communicated with the first gas channel and is positioned between the lower part of the upper shell gas outer channel and the lower shell gas inner channel, wherein the second gas channel is communicated with a pore canal outside the upper shell gas inner channel.
8. The disposable medical human body gas analysis and collection using method according to claim 2, wherein the filter element is arranged between the lower shell gas inner channel and the upper shell gas outer channel and is positioned in the upper cavity of the adsorption filter element, and the lower end face of the filter element is attached to the bottom end face in the upper cavity.
9. The method of claim 2, wherein the outer side of the upper housing of the collector further comprises an external connection structure for connection with an anesthesia mask or a vital capacity mouthpiece.
10. The disposable medical human body gas analysis and collection using method according to claim 2, wherein the lower shell outer connection support further comprises a positioning and fixing structure for positioning a one-way valve membrane, the one-way valve membrane is provided with a positioning and fixing hole matched with the positioning structure, the switch sheet comprises a switch head part and a switch connection structure connected with the one-way valve membrane main body, and the switch connection structure is a small connection structure which is smaller than the switch head part in size and is beneficial to opening and closing of the switch sheet.
11. The disposable medical human body gas analysis, collection and use method according to claim 10, wherein the switch sheets are uniformly distributed on the one-way valve membrane.
12. The disposable medical human body gas analysis, collection and use method according to claim 2, wherein the upper collector shell, the lower collector shell, the filter element, the adsorption element and the one-way valve membrane are all in a circular or annular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310887672.8A CN116831634A (en) | 2023-07-19 | 2023-07-19 | Disposable medical human body gas analysis acquisition and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310887672.8A CN116831634A (en) | 2023-07-19 | 2023-07-19 | Disposable medical human body gas analysis acquisition and use method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116831634A true CN116831634A (en) | 2023-10-03 |
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ID=88170550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310887672.8A Pending CN116831634A (en) | 2023-07-19 | 2023-07-19 | Disposable medical human body gas analysis acquisition and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116831634A (en) |
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2023
- 2023-07-19 CN CN202310887672.8A patent/CN116831634A/en active Pending
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