Flow reflector for anaesthesia machine

Abstract

The utility model discloses a flow reflector for an anaesthesia machine, which relates to the technical field of medical instruments and comprises a lower channel bin, a first gas channel is arranged on the upper surface of the lower channel bin, a first gas hole is arranged on the side wall of the lower channel bin, and the first gas channel is communicated with the first gas hole. A first grid baffle is placed on the upper surface of the lower channel bin, a through hole is formed in the outer wall of the middle of the first grid baffle, and a middle channel bin is placed on the upper surface of the first grid baffle. Exhaled gas enters a first gas channel on a lower channel bin through a connector of a first quick connector and then enters a middle channel bin through a through hole in a first grid baffle, and due to the fact that the density of oxygen is higher than that of carbon dioxide, the gas begins to be separated, and the oxygen sinks; carbon dioxide enters a second gas channel in the upper channel bin through an exhaust channel in the middle channel bin, gas separation is achieved, and more oxygen is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a flow reflector for an anesthesia machine. Background Art

[0002] Anesthesia machines are mainly used to provide oxygen, anesthesia and respiratory support to patients during surgery. As one of the main components of the anesthesia machine, the respiratory system of the anesthesia machine is a combined gas circuit device that connects the anesthesia machine and the patient. The respiratory system delivers anesthetic mixed gas to the patient and receives the patient's exhaled gas to achieve gas exchange for the patient's breathing and anesthesia. In the related art, there is a respiratory system of an anesthesia machine that uses a bellows to achieve automatic ventilation. When the patient inhales, the driving gas enters the bellows and compresses the folding bag in the bellows, pushing the gas in the folding bag through the breathing tube and delivering it to the patient to complete the inhalation process. When the patient exhales, the gas exhaled by the patient enters the folding bag from the breathing tube and lifts the folding bag to complete the exhalation process.

[0003] For example, the Chinese patent document with publication number CN215841016U discloses a bellows assembly of an anesthesia machine and an anesthesia machine, which states that "the bellows assembly includes a shell, a silicone rubber folded bag and a connecting seat; the shell has a accommodating cavity; one end of the silicone rubber folded bag along the height direction is an open end, and the other end of the silicone rubber folded bag along the height direction is a blind end, the silicone rubber folded bag is arranged in the accommodating cavity, and a driving gas accommodating space is formed between the silicone rubber folded bag and the inner wall of the accommodating cavity."

[0004] However, the following defects or problems still exist in combination with the existing technology: most anesthesia machines now use bellows to control breathing, and the bellows use rubber folding bags, which can cause inaccurate measurement of inspiratory and expiratory tidal volumes. Rubber will age, resulting in poor sealing and gas leakage, etc. For this reason, we designed a flow reflector for anesthesia machines to replace the traditional bellows. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a flow reflector for an anesthesia machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A flow reflector for an anesthesia machine comprises a lower channel bin, a first gas channel is provided on the upper surface of the lower channel bin, a first air hole is provided on the side wall of the lower channel bin, the first gas channel and the first air hole are communicated with each other, a first baffle plate is placed on the upper surface of the lower channel bin, a through hole is provided on the middle outer wall of the first baffle plate, a middle channel bin is placed on the upper surface of the first baffle plate, a partition is fixedly connected to the middle of the middle channel bin, an exhaust duct is arranged between the middle channel bin and the partition, a second baffle plate is placed on the upper surface of the middle channel bin, a through hole is provided on the middle outer wall of the second baffle plate, an upper channel bin is placed on the upper surface of the second baffle plate, a second gas channel is provided on the lower surface of the upper channel bin, a second air hole is provided on the side wall of the upper channel bin, the second gas channel and the second air hole are communicated with each other, the second air hole is connected to the first gas channel through the through hole at the second baffle plate, the exhaust duct and the through hole at the first baffle plate, and the first gas channel and the second gas channel are both spiral gas channels.

[0008] Preferably, the lower channel bin is fixedly connected to a first quick connector at the first air hole, and the upper channel bin is fixedly connected to a second quick connector at the second air hole.

[0009] Preferably, the first gas channel and the second gas channel have the same structure and correspond to each other, and the first baffle plate and the second baffle plate have the same structure.

[0010] Preferably, a first groove is provided on the upper surface of the lower channel bin, and third grooves are provided on the upper and lower sides of the middle channel bin, a second sealing gasket is placed in the third groove on the lower side of the middle channel bin, the first baffle plate is located on the lower surface of the second sealing gasket, the length and width dimensions of the first baffle plate match the length and width dimensions of the second sealing gasket, the length and width dimensions of the first groove and the third groove match the length and width dimensions of the first baffle plate, the first baffle plate and the second sealing gasket are clamped between the lower channel bin and the middle channel bin through the first groove and the third groove, and the gaps between the lower channel bin, the first baffle plate, the second sealing gasket and the middle channel bin are sealed with glue.

[0011] Preferably, a second groove is provided on the lower surface of the upper channel bin, a first sealing gasket is placed in the third groove on the upper side of the middle channel bin, the second baffle plate is located on the upper surface of the first sealing gasket, the length and width dimensions of the second baffle plate match those of the first sealing gasket, the length and width dimensions of the second groove and the third groove match those of the second baffle plate, the second baffle plate and the first sealing gasket are clamped between the upper channel bin and the middle channel bin through the second groove and the third groove, and the gaps between the upper channel bin, the first baffle plate, the first sealing gasket and the middle channel bin are sealed with glue.

[0012] Preferably, the four corners of the lower channel bin, the first baffle plate, the second sealing gasket, the middle channel bin, the first sealing gasket, the second baffle plate and the upper channel bin are all provided with connecting holes, and the four corners of the lower channel bin, the first baffle plate, the second sealing gasket, the middle channel bin, the first sealing gasket, the second baffle plate and the upper channel bin are all provided with fixing holes.

[0013] The beneficial effects of the utility model are:

[0014] 1. In the utility model, the bellows assembly structure on the traditional anesthesia machine is cancelled, and the structure of the lower channel bin, the upper channel bin, the middle channel bin, the first baffle plate and the second baffle plate is adopted. The airbag in the traditional bellows will be deformed due to long-term use, while the flow reflector does not need to use the airbag, so it will not be deformed after long-term use, which effectively ensures the reliability of the tidal volume accuracy. At the same time, it also avoids the problems of easy oxidation, aging and damage, easy water absorption and expansion of the airbag in the traditional bellows, so that the flow reflector has good sealing performance, fast oxygen supply, and saves anesthetics. It can be used stably for a long time on the anesthesia machine, thereby improving the safety and reliability of the anesthesia machine.

[0015] 2. In the utility model, through the design of the middle channel bin, when exhaling, the exhaled gas enters the first gas channel on the lower channel bin through the joint of the first quick connector on the lower channel bin, and then enters the middle channel bin through the through hole on the first baffle plate. Since the density of oxygen is higher than that of carbon dioxide, the gas begins to separate at this time, the oxygen sinks, and the carbon dioxide enters the second gas channel in the upper channel bin through the exhaust duct at the middle channel bin, and then is discharged through the second quick connector, thereby realizing gas separation and saving more oxygen.

[0016] 2. In the present invention, the first gas channel in the lower channel compartment and the second gas channel in the upper channel compartment are both spiral gas channels, which reduce the volume of the entire flow reflector while ensuring the length of the gas channel and the gas volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a flow reflector for an anesthesia machine.

[0018] Figure 2 The utility model is a schematic diagram of the assembly of a flow reflector for an anesthesia machine.

[0019] Figure 3 The utility model is a schematic diagram of the structure of a lower channel compartment of a flow reflector for an anesthesia machine.

[0020] Figure 4 The utility model is a schematic diagram of the structure of an upper channel compartment of a flow reflector for an anesthesia machine.

[0021] Figure 5 The utility model is a structural schematic diagram of a first baffle plate of a flow reflector for an anesthesia machine.

[0022] Figure 6 The utility model is a schematic structural diagram of a first sealing gasket of a flow reflector for an anesthesia machine.

[0023] Figure 7 The utility model is a schematic diagram of the structure of a middle channel chamber of a flow reflector for an anesthesia machine.

[0024] Numbers in the figure: 1. lower channel compartment; 101. first gas channel; 102. first air hole; 103. first groove; 2. upper channel compartment; 201. second gas channel; 202. second air hole; 203. second groove; 3. first baffle plate; 4. second baffle plate; 5. first sealing gasket; 6. middle channel compartment; 601. partition plate; 602. exhaust duct; 603. third groove; 7. first quick connector; 8. second quick connector; 9. second sealing gasket. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] As attached Figure 1 To Attachment Figure 7 As shown:

[0027] A flow reflector for an anesthesia machine, comprising a lower channel bin 1, a first gas channel 101 is provided on the upper surface of the lower channel bin 1, a first air hole 102 is provided on the side wall of the lower channel bin 1, the first gas channel 101 and the first air hole 102 are connected to each other, a first baffle plate 3 is placed on the upper surface of the lower channel bin 1, a through hole is provided on the middle outer wall of the first baffle plate 3, a middle channel bin 6 is placed on the upper surface of the first baffle plate 3, a partition plate 601 is fixedly connected to the middle of the middle channel bin 6, and an exhaust port is provided between the middle channel bin 6 and the partition plate 601. Channel 602, a second baffle plate 4 is placed on the upper surface of the middle channel bin 6, a through hole is opened on the middle outer wall of the second baffle plate 4, an upper channel bin 2 is placed on the upper surface of the second baffle plate 4, a second gas channel 201 is opened on the lower surface of the upper channel bin 2, a second air hole 202 is opened on the side wall of the upper channel bin 2, the second gas channel 201 is connected with the second air hole 202, and the second air hole 202 is connected with the first gas channel 101 through the through hole at the second baffle plate 4, the exhaust duct 602 and the through hole at the first baffle plate 3.

[0028] In the above technical solution, when exhaling, the exhaled gas enters the first gas channel 101 on the lower channel bin 1 through the joint of the first quick connector 7 on the lower channel bin 1, and then enters the middle channel bin 6 through the through hole on the first baffle plate 3. Since the density of oxygen is higher than that of carbon dioxide, the gas begins to separate at this time, and the oxygen sinks, and the carbon dioxide enters the second gas channel 201 in the upper channel bin 2 through the exhaust duct 602 at the middle channel bin 6, and then is discharged through the second quick connector 8, thereby realizing gas separation and saving more oxygen.

[0029] As attached Figure 1 The lower channel bin 1 is fixedly connected to a first quick connector 7 at the first air hole 102, and the upper channel bin 2 is fixedly connected to a second quick connector 8 at the second air hole 202. The first quick connector 7 and the second quick connector 8 are used for external air pipes.

[0030] As attached Figure 3 To Attachment Figure 4 As shown, the first gas channel 101 and the second gas channel 201 are both spiral gas channels, the first gas channel 101 and the second gas channel 201 have the same structure and correspond to each other, and the first baffle plate 3 and the second baffle plate 4 have the same structure.

[0031] In the above technical solution, both the first gas channel 101 and the second gas channel 201 are spiral gas channels, which reduce the volume of the entire flow reflector while ensuring the length of the gas channel and the gas volume.

[0032] As attached Figure 2 A first groove 103 is provided on the upper surface of the lower channel bin 1, and third grooves 603 are provided on the upper and lower sides of the middle channel bin 6. A second sealing gasket 9 is placed in the third groove 603 on the lower side of the middle channel bin 6. The first baffle plate 3 is located on the lower surface of the second sealing gasket 9. The length and width of the first baffle plate 3 match the length and width of the second sealing gasket 9. The length and width of the first groove 103 and the third groove 603 match the length and width of the first baffle plate 3. The first baffle plate 3 and the second sealing gasket 9 are clamped between the lower channel bin 1 and the middle channel bin 6 through the first groove 103 and the third groove 603. The gaps between the lower channel bin 1, the first baffle plate 3, the second sealing gasket 9 and the middle channel bin 6 are sealed with glue;

[0033] A second groove 203 is provided on the lower surface of the upper channel bin 2, and a first sealing gasket 5 is placed in the third groove 603 on the upper side of the middle channel bin 6. The second baffle plate 4 is located on the upper surface of the first sealing gasket 5, and the length and width dimensions of the second baffle plate 4 match those of the first sealing gasket 5. The length and width dimensions of the second groove 203 and the third groove 603 match those of the second baffle plate 4. The second baffle plate 4 and the first sealing gasket 5 are clamped between the upper channel bin 2 and the middle channel bin 6 through the second groove 203 and the third groove 603, and the gaps between the upper channel bin 2, the first baffle plate 3, the first sealing gasket 5 and the middle channel bin 6 are sealed with glue.

[0034] As attached Figure 2 The four corners of the lower channel bin 1, the first baffle plate 3, the second sealing gasket 9, the middle channel bin 6, the first sealing gasket 5, the second baffle plate 4, and the upper channel bin 2 are all provided with connecting holes. Through the design of the connecting holes, four studs are used to fix the lower channel bin 1, the first baffle plate 3, the second sealing gasket 9, the middle channel bin 6, the first sealing gasket 5, the second baffle plate 4, and the upper channel bin 2.

[0035] Fixing holes are provided at the four corners of the lower channel bin 1, the first baffle plate 3, the second sealing gasket 9, the middle channel bin 6, the first sealing gasket 5, the second baffle plate 4, and the upper channel bin 2. Through the design of the fixing holes, four self-tapping screws are used to fix the flow reflector to the anesthesia machine frame through the fixing holes.

[0036] The specific usage and function of this embodiment are as follows:

[0037] When the utility model is used, when exhaling, the exhaled gas enters the first gas channel 101 on the lower channel bin 1 through the joint of the first quick joint 7 on the lower channel bin 1, and then enters the middle channel bin 6 through the through hole on the first baffle plate 3. Since the density of oxygen is higher than that of carbon dioxide, the gas begins to separate at this time, and the oxygen sinks. The carbon dioxide enters the second gas channel 201 in the upper channel bin 2 through the exhaust channel 602 at the middle channel bin 6, and then is discharged through the second quick joint 8, so that the gas separation is realized and the oxygen is saved more.

[0038] During inhalation, oxygen enters the second gas channel 201 on the upper channel bin 2 through the joint of the second quick connector 8 on the upper channel bin 2, and then enters the middle channel bin 6 through the through hole on the first baffle plate 3. The oxygen enters the first gas channel 101 in the lower channel bin 1 through the exhaust channel 602 at the middle channel bin 6 and mixes with the remaining gas in the first gas channel 101, and then is discharged through the first quick connector 7 and enters the patient's body.

[0039] For the above structure and process, please refer to Figure 1-7 .

[0040] In short, the utility model eliminates the bellows assembly structure on the traditional anesthesia machine and adopts the structural design of the lower channel bin 1, the upper channel bin 2, the first baffle plate 3, the second baffle plate 4, and the middle channel bin 6. The airbag in the traditional bellows will be deformed due to long-term use, and the flow reflector does not need to use an airbag, so it will not be deformed after long-term use, which effectively ensures the reliability of the tidal volume accuracy. At the same time, it also avoids the problems of easy oxidation, aging and damage, easy water absorption and expansion of the airbag in the traditional bellows. The flow reflector has good sealing, fast oxygen supply, saves anesthetics, and can be used stably for a long time on the anesthesia machine, thereby improving the safety and reliability of the anesthesia machine.

[0041] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A flow reflector for an anesthesia machine, comprising a lower channel compartment (1), characterized in that: The upper surface of the lower channel bin (1) is provided with a first gas channel (101), the side wall of the lower channel bin (1) is provided with a first gas hole (102), the first gas channel (101) and the first gas hole (102) are communicated with each other, a first baffle plate (3) is placed on the upper surface of the lower channel bin (1), a through hole is opened on the middle outer wall of the first baffle plate (3), a middle channel bin (6) is placed on the upper surface of the first baffle plate (3), a partition plate (601) is fixedly connected to the middle of the middle channel bin (6), an exhaust channel (602) is provided between the middle channel bin (6) and the partition plate (601), and a second baffle plate is placed on the upper surface of the middle channel bin (6). (4), a through hole is provided on the middle outer wall of the second baffle plate (4), an upper channel bin (2) is placed on the upper surface of the second baffle plate (4), a second gas channel (201) is provided on the lower surface of the upper channel bin (2), a second air hole (202) is provided on the side wall of the upper channel bin (2), the second gas channel (201) and the second air hole (202) are interconnected, the second air hole (202) is connected to the first gas channel (101) through the through hole at the second baffle plate (4), the exhaust channel (602) and the through hole at the first baffle plate (3), and the first gas channel (101) and the second gas channel (201) are both spiral gas channels.

2. A flow reflector for an anesthesia machine according to claim 1, characterized in that: The lower channel bin (1) is fixedly connected to a first quick connector (7) at the first air hole (102), and the upper channel bin (2) is fixedly connected to a second quick connector (8) at the second air hole (202).

3. A flow reflector for an anesthesia machine according to claim 1, characterized in that: The first gas channel (101) and the second gas channel (201) have the same structure and correspond to each other, and the first baffle plate (3) and the second baffle plate (4) have the same structure.

4. A flow reflector for an anesthesia machine according to claim 1, characterized in that: The upper surface of the lower channel bin (1) is provided with a first groove (103), the upper and lower sides of the middle channel bin (6) are both provided with third grooves (603), a second sealing gasket (9) is placed in the third groove (603) on the lower side of the middle channel bin (6), the first baffle plate (3) is located on the lower surface of the second sealing gasket (9), the length and width of the first baffle plate (3) match the length and width of the second sealing gasket (9), the length and width of the first groove (103) and the third groove (603) match the length and width of the first baffle plate (3), the first baffle plate (3) and the second sealing gasket (9) are clamped between the lower channel bin (1) and the middle channel bin (6) through the first groove (103) and the third groove (603), and the gaps between the lower channel bin (1), the first baffle plate (3), the second sealing gasket (9) and the middle channel bin (6) are sealed by glue.

5. A flow reflector for an anesthesia machine according to claim 4, characterized in that: The lower surface of the upper channel bin (2) is provided with a second groove (203); a first sealing gasket (5) is placed in a third groove (603) on the upper side of the middle channel bin (6); the second baffle plate (4) is located on the upper surface of the first sealing gasket (5); the length and width of the second baffle plate (4) match the length and width of the first sealing gasket (5); the length and width of the second groove (203) and the third groove (603) match the length and width of the second baffle plate (4); the second baffle plate (4) and the first sealing gasket (5) are clamped between the upper channel bin (2) and the middle channel bin (6) through the second groove (203) and the third groove (603); and the gaps between the upper channel bin (2), the first baffle plate (3), the first sealing gasket (5) and the middle channel bin (6) are sealed by glue.

6. A flow reflector for an anesthesia machine according to claim 5, characterized in that: The four corners of the lower channel bin (1), the first baffle plate (3), the second sealing gasket (9), the middle channel bin (6), the first sealing gasket (5), the second baffle plate (4), and the upper channel bin (2) are all provided with connection holes, and the four corners of the lower channel bin (1), the first baffle plate (3), the second sealing gasket (9), the middle channel bin (6), the first sealing gasket (5), the second baffle plate (4), and the upper channel bin (2) are all provided with fixing holes.

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