Degassing device for medical infusion apparatus

Abstract

The present invention belongs to the technical field of medical devices, and specifically relates to a degassing device for medical infusion devices, comprising a packaging shell; a degassing chamber is provided in the packaging shell; a filter body is correspondingly filled in the filter element installation cavity; an exhaust membrane capable of covering the filter element installation cavity is provided on the inner wall of the degassing chamber; the filter element body can be bidirectionally closed when exposed to water and prevent liquid from leaking; when there are multiple filter element installation cavities, one exhaust membrane covers more than two filter element installation cavities, and each filter element installation cavity is welded and sealed by the exhaust membrane, and each filter element installation cavity forms an independent and sealed degassing working unit. A one-membrane, multi-cavity structure uses one exhaust membrane to cover multiple filter element bodies, and different filter element installation cavities share a welding line, reducing the total length of the exhaust membrane's overall welding line, thereby reducing the problem of impurities and fibers falling from the damaged point and mixing into the degassing chamber.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical instruments, and in particular relates to a degassing device for a medical infusion instrument. Background Art

[0002] During procedures like intravenous infusion and hemodialysis, fluids such as blood or medications are often infused into the human body. These fluids often require degassing during infusion. Degassing mechanisms are increasingly being incorporated into medical infusion devices. Most utilize a hydrophobic polytetrafluoroethylene membrane as the inner functional layer, with a heat-welded outer layer, typically heat-sealed onto plastic materials. The hydrophobic vent membrane is typically installed in two locations. However, welding techniques and storage and transportation temperatures often lead to breakage or leaks, rendering the membrane useless and causing liquid leakage. Dead spots exist between the vent membrane and the liquid filter membrane, trapping gas and affecting liquid flow or forcing bubbles into downstream pipelines. Furthermore, many gas pressure sensors with degassing or water-resistant, breathable membranes can cause leaks after welding, potentially clogging the sensor and causing data loss. For medical devices designed for extended use, maintaining degassing functionality is even more critical. They must not only avoid blockages and leaks throughout their operation, but also ensure safety.

[0003] At present, in the degassing structures on the market, the internal membrane structure is prone to dropping fibers and impurities from the punched and cut edges of the membrane structure during use, especially for composite membranes with hot-melt adhesive non-woven fabrics. The longer the edge produced by the punching and cutting, the more chances there are for fibers and impurities to fall off during the heat welding process. These dropped fibers and impurities that fall into the drug solution may also enter the human body with the drug solution, affecting the safety of the infusion operation. Therefore, it is necessary to design a structure that can minimize the length of the cutting edge to reduce the length of the cutting edge and reduce the falling of fibers and impurities. Summary of the Invention

[0004] In order to solve the problem that the membrane structure in the prior art has a long punched and cut edge, which causes fibers and impurities to easily fall off and mix into the infusion liquid, the present solution provides a degassing device for a medical infusion device.

[0005] The technical solution adopted in the present invention is:

[0006] A degassing device for a medical infusion device comprises a packaging shell; a degassing chamber is disposed within the packaging shell; a filter element mounting cavity is disposed on a side wall of the degassing chamber, and a filter element body is correspondingly filled in the filter element mounting cavity; an exhaust membrane is disposed on the inner wall of the degassing chamber, capable of covering the filter element mounting cavity; gas in the degassing chamber can pass through the exhaust membrane and the filter element body and be discharged to the external air environment; the filter element body can be bidirectionally sealed when exposed to water, thereby preventing liquid leakage;

[0007] When there are multiple filter element installation cavities, one exhaust membrane covers more than two filter element installation cavities, and each filter element installation cavity is welded and sealed by the exhaust membrane, and each filter element installation cavity forms an independent and sealed degassing working unit.

[0008] In the above structure, a one-membrane, multi-hole structure is adopted, and a single exhaust membrane can be used to cover all filter element installation cavities, thereby reducing the edge length of the exhaust membrane cutting edge, and can also reduce the overall length of the welding line, while also effectively reducing the probability of exhaust membrane damage during welding. The middle area between the two filter element installation cavities shares a welding line, reducing the welding area, and reducing the phenomenon of damaged points on the exhaust membrane during welding, making the exhaust membrane more complete, effectively reducing the problem of impurities and fibers falling and leakage caused by damaged points. At the same time, the reduction in the length of the welding line of the entire exhaust membrane structure can also achieve the effect of reducing welding pollution and impurity overflow, and effectively avoid the high temperature caused by long-term welding causing the material to deteriorate and melt into the liquid, affecting the safety of the use of medical infusion devices.

[0009] As an alternative structure or supplemental design for the degassing device of the aforementioned medical infusion set, the degassing membrane is a composite structure, with a hydrophobic, breathable membrane layer on the water-facing side and a welded layer on the water-repellent side. The welded layer is grid-shaped and can be welded to the packaging housing. During use, a portion of the welded layer is welded to the edge of the filter element mounting cavity, while the welded layer directly opposite the filter element mounting cavity supports the hydrophobic, breathable membrane layer, thereby preventing damage to the membrane layer caused by excessive liquid pressure within the degassing chamber.

[0010] As an alternative structure or supplemental design for the degassing device of the aforementioned medical infusion set, a plurality of filter element mounting cavities may be provided, with all of the filter element mounting cavities arranged in a honeycomb or matrix pattern. This honeycomb pattern of distribution of the filter element mounting cavities facilitates sharing a common weld line between adjacent filter element mounting cavities, thereby effectively reducing the overall weld line length.

[0011] As an alternative structure or supplemental design for the degassing device of the aforementioned medical infusion set, all filter element mounting cavities are covered by a single vent membrane. The welded connection between the vent membrane and the packaging housing forms a weld line. The vent membrane is divided by the weld line to form a plurality of sector-shaped shielding areas, each of which covers a filter element mounting cavity. The shielding areas are directly opposite the filter element mounting cavities, and during liquid degassing, gas can enter the filter element mounting cavity through the hydrophobic and breathable membrane layer and the mesh openings of the weld layer in the shielding area. After passing through the filter element body, gas is discharged to the external air environment through a vent provided on one side of the filter element mounting cavity.

[0012] As an alternative or supplemental design for the degassing device of the aforementioned medical infusion set, the inlet or outlet of the degassing chamber is located at the center of the vent membrane, or the inlet or outlet of the degassing chamber is located outside the vent membrane. The inlet or outlet of the degassing chamber can be positioned in various configurations, including one configuration in which liquid is introduced into or out of the center of the vent membrane, and another configuration in which liquid is not introduced into or out of the vent membrane, thereby ensuring the integrity of the vent membrane.

[0013] As an alternative structure or supplementary design of the degassing device of the above-mentioned medical infusion device: any two of the first center hole, the second external joint, the first side port and the second side port are provided on the packaging shell, the center hole and the second external joint are provided on the center line of the packaging shell, and the first side port and the second side port are provided on the circumferential side wall of the packaging shell; any two of the first center hole, the inner cavity of the second external joint, the first side port and the second side port are used as the inlet and outlet of the degassing chamber respectively.

[0014] As an alternative structure or supplementary design of the degassing device of the above-mentioned medical infusion device: when a first center hole is set on the packaging shell, a second center hole is set at the center of the exhaust membrane, and the second center hole is coaxial with the first center hole and connected to each other.

[0015] As an alternative structure or supplementary design of the degassing device of the above-mentioned medical infusion device: the packaging shell includes a degassing seat and an adapter seat, the degassing seat is disc-shaped, and the adapter seat is funnel-shaped. The degassing seat is connected to the open part of the adapter seat, and a degassing chamber is formed between the two; the filter element mounting cavity is arranged on the side of the degassing seat and is covered by an exhaust membrane; a first center opening is provided at the center of the degassing seat, and a second external joint is provided at the closing part of the adapter seat, and the inner cavities of the first center opening and the second external joint are respectively connected to the degassing chamber.

[0016] As an alternative structure or supplementary design of the degassing device of the above-mentioned medical infusion device: the packaging shell includes a degassing seat and an adapter seat, the degassing seat is disc-shaped, and the adapter seat is cylindrical, the degassing seat is connected to the open part of the adapter seat, and a degassing chamber is formed between the two; the filter element mounting cavity and the exhaust membrane are both arranged on the degassing seat; the first side port and the second side port are respectively provided on the circumferential side walls of the adapter seat, and the first side port and the second side port are both connected to the degassing chamber.

[0017] As an alternative structure or supplementary design of the degassing device of the above-mentioned medical infusion device: the packaging shell includes a degassing seat, which is in the shape of a cover, and the cover cavity of the degassing seat is used as a degassing chamber. The filter element mounting cavity and the exhaust membrane are both arranged at the inner bottom of the degassing seat, and a first external joint is provided on the side of the degassing seat facing away from the degassing chamber. A first center hole is provided between the first external joint and the degassing chamber, and the inner cavity of the first external joint is connected to the degassing chamber through the first center hole.

[0018] The beneficial effects of the present invention are:

[0019] 1. This solution adopts a one-membrane, multi-cavity structure, using one exhaust membrane to cover multiple filter element bodies. This allows the different filter element installation cavities to share a common welding line, thereby reducing the total length of the exhaust membrane's welding line. This reduces the number of damaged points on the exhaust membrane caused by long welding time and high welding temperature, thereby reducing the problem of impurities and fibers falling from the damaged points and mixing into the degassing chamber.

[0020] 2. In addition, due to the multi-hole structure of one membrane, the exhaust membrane can have a shorter punching and cutting edge, which can effectively reduce the exhaust membrane edge length in the welding line area, thereby reducing the occurrence of fiber and impurities falling off the exhaust membrane edge after welding. It also effectively prevents the high temperature generated by long-term welding from causing material deterioration and dissolution into the liquid, which affects the safety of medical infusion devices.

[0021] 3. The filter element body is a three-dimensional form of compressed and solidified sintered PE (polyethylene) material (not limited to sintered and PE materials). The characteristics of this filter element are that it is sealed when encountering water and is blocked in both directions. At the same time, each filter element body is welded and sealed by an exhaust membrane, thereby forming multiple degassing working units consisting of the filter element body and the corresponding shielding area. Even if a single degassing working unit loses its effectiveness and is immersed in water and becomes blocked, it will not affect the normal use of other degassing working units, effectively extending the service life of the degassing function. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of this solution or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0023] Figure 1 It is a schematic structural diagram of a degassing device for a medical infusion apparatus;

[0024] Figure 2 yes Figure 1 The bottom view of the degassing seat;

[0025] Figure 3 yes Figure 1 A top view of the degassing seat;

[0026] Figure 4 is a cross-sectional view of a degassing device for another medical infusion set;

[0027] Figure 5 This is a cross-sectional view of a degassing device for a medical infusion device.

[0028] In the figure: 1-degassing seat; 11-filter element installation cavity; 12-vent; 13-first center hole; 14-honeycomb cavity; 15-first external joint; 2-filter element body; 3-exhaust membrane; 31-welding layer; 32-hydrophobic breathable membrane layer; 33-welding line; 34-shielding area; 35-second center hole; 4-adapter seat; 41-connection position; 42-second external joint; 43-first side port; 44-second side port; 5-degassing chamber. DETAILED DESCRIPTION

[0029] The technical solution in this embodiment will be clearly and completely described below in conjunction with the accompanying drawings. The described embodiments are only a part of the embodiments, not all of them. Based on the embodiments in this solution, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this solution.

[0030] Example 1

[0031] Currently, degassing structures for medical infusion devices on the market often rely solely on a water-blocking, breathable membrane for degassing. This structure can lead to the loss of degassing effectiveness when the membrane loses its degassing function during use. Furthermore, because membrane structures are often punched and welded to corresponding components, the cut edges of the membrane structure can release fibers and impurities. This is particularly true for composite membranes with hot-melt adhesive nonwovens. If these fibers and impurities fall into the drug solution, they can enter the human body with the solution, compromising the safety of the infusion process. The longer the edge of the membrane structure, the greater the chance of fiber and impurities being released during the heat welding process. Therefore, the longer the edge of the membrane structure, the greater the impact on the safety of the infusion process. Furthermore, during welding, long welding times and large welding areas can easily cause surface damage to the membrane structure, which in turn can easily release fibers and impurities.

[0032] In order to solve the above problems, this embodiment designs a degassing device for medical infusion equipment, such as Figures 1 to 5 As shown, the degassing device of this embodiment includes a packaging shell.

[0033] A degassing chamber 5 is provided within the packaging housing. A filter element mounting cavity 11 is provided on the sidewall of the degassing chamber 5, and the filter element mounting cavity 11 is correspondingly filled with a filter element body 2. An exhaust membrane 3 is provided on the inner wall of the degassing chamber 5, covering the filter element mounting cavity 11. Gas within the degassing chamber 5 can pass through the exhaust membrane 3 and the filter element body 2 and be discharged to the external air environment. The filter element body 2 is capable of bidirectional sealing when exposed to water, preventing liquid leakage. The edge of the filter element body 2 should be in sealed contact with the wall of the filter element mounting cavity 11 to prevent liquid from leaking through the gaps around the filter element body 2.

[0034] When there are multiple filter element mounting cavities 11, one exhaust membrane 3 covers more than two filter element mounting cavities 11, and each filter element mounting cavity 11 is welded and sealed by the exhaust membrane 3, and each filter element mounting cavity 11 forms an independent and sealed degassing working unit.

[0035] The degassing membrane 3 is a composite structure, with a hydrophobic, breathable membrane layer 32 on the water-facing side and a welded layer 31 on the water-repellent side. The welded layer 31 is grid-shaped and can be welded to the packaging housing. During use, a portion of the welded layer 31 is welded to the edge of the filter element mounting cavity 11. The welded layer 31 directly opposite the filter element mounting cavity 11 supports the hydrophobic, breathable membrane layer 32, thereby preventing damage to the membrane layer 32 caused by excessive liquid pressure within the degassing chamber 5.

[0036] There are multiple filter element mounting cavities 11, and all of the filter element mounting cavities 11 are distributed in a honeycomb pattern. The honeycomb pattern of the filter element mounting cavities 11 facilitates sharing a common welding line 33 between adjacent filter element mounting cavities 11, thereby effectively reducing the overall length of the welding line 33.

[0037] All filter element mounting cavities 11 can be covered by the same exhaust membrane 3. The welded connection between the exhaust membrane 3 and the packaging shell forms a weld line 33. The exhaust membrane 3 is divided by the weld line 33 to form a number of fan-shaped shielding areas 34, each of which covers a filter element mounting cavity 11. The shielding areas 34 are directly opposite the filter element mounting cavity 11, and when the liquid is degassed, the gas can enter the filter element mounting cavity 11 through the hydrophobic and breathable membrane layer 32 of the shielding area 34 and the mesh of the welding layer 31. After passing through the filter element body 2, the gas is discharged into the external air environment through the vent 12 provided on the side of the filter element mounting cavity 11. The filter element body 2 can be made of sintered PE material (a three-dimensional form of compressed and solidified particles. The filter element is characterized by being sealed when exposed to water and bidirectionally blocked. At the same time, each filter element body 2 is welded and sealed by a degassing membrane 3, thereby forming a plurality of degassing working units consisting of the filter element body 2 and the corresponding shielding area 34. This allows a single degassing working unit to become blocked after losing its effectiveness and being immersed in water, without affecting the normal use of other degassing working units, thereby effectively extending the service life of the degassing function.

[0038] When the degassing device of this embodiment is applied to medical infusion instruments, liquids such as liquid medicine can be degassed in the degassing chamber 5, and this embodiment adopts a one-membrane multi-hole structure. Each filter element body 2 and the shielding area 34 of the exhaust membrane 3 form an independent degassing working unit, which is divided by welding lines 33, so that each degassing working unit can be degassed independently, so that after a single degassing working unit loses its effectiveness, the filter element body 2 can be immersed in water and blocked, thereby preventing the liquid medicine from leaking from the vent 12, and at the same time avoiding affecting other degassing working units, effectively extending the service life of the degassing function, meeting the degassing needs of medical devices that require longer time, and ensuring the effectiveness of the degassing function at all times of use.

[0039] In addition, due to the one-membrane multi-hole structure in this embodiment, the total length of the edge of the exhaust membrane 3 punched and cut can be effectively reduced, thereby avoiding impurities and fibers generated and falling off at the edge of the exhaust membrane 3 during welding, and avoiding excessive fibers and impurities generated and falling off due to the edge being too long, thereby improving the safety of the infusion operation.

[0040] Finally, the filter element mounting cavities 11 of this embodiment are arranged in a honeycomb or array layout, so that the middle area between two adjacent filter element mounting cavities 11 can share a welding line 33, reducing the total welding area and total area, thereby reducing the problem of excessive damage points on the exhaust membrane 3 due to long-term welding. While ensuring the integrity of the exhaust membrane 3, the reduction of damage points can effectively reduce the falling of impurities and fibers, and at the same time reduce the leakage problem caused by damage points, further avoiding the problem of material deterioration and shedding of fibers and impurities due to high temperature generated by long-term welding, thereby improving the safety of medical infusion devices.

[0041] Example 2

[0042] Based on the structure of Example 1, in order to realize a one-membrane-multiple-hole structure, this embodiment designs the following three types of degassing devices: All three degassing devices include a packaging shell.

[0043] The first type of degassing device is as follows Figures 1 to 3 As shown, the packaging shell of the degassing device includes two parts: a degassing seat 1 and an adapter seat 4. The degassing seat 1 is in the shape of a disc, and the adapter seat 4 is in the shape of a funnel. The degassing seat 1 is connected to the open part of the adapter seat 4, and a degassing chamber 5 is formed between the two; the filter element mounting cavity 11 is arranged on the side of the degassing seat 1 and is covered by an exhaust membrane 3, and the exhaust membrane 3 is in the shape of a circular ring. The filter element mounting cavity 11 is distributed in a circular array with the first center opening as the center; a first center opening is provided at the center of the degassing seat 1, and a second external joint 42 is provided at the closing part of the adapter seat 4, and the inner cavities of the first center opening and the second external joint 42 are respectively connected to the degassing chamber 5. When the degassing device is in use, the liquid enters the degassing chamber 5 from the first central port or the second external joint 42, and forms a turbulent flow in the degassing chamber 5. Under the action of the turbulent flow, the gas can enter the filter element installation cavity 11 from the exhaust membrane 3 of each degassing working unit, and after passing through the filter element body 2, it is discharged from the packaging shell through the vent 12. The degassed liquid can be discharged from the second external joint 42 or the first central port.

[0044] The second structural form of the degassing device is as follows Figure 4As shown, the packaging shell of the degassing device also includes a degassing seat 1 and an adapter seat 4. The degassing seat 1 is in the shape of a disc, and the adapter seat 4 is in the shape of a cylinder. The degassing seat 1 is connected to the open part of the adapter seat 4, and a degassing chamber 5 is formed between the two. The filter element mounting cavities 11 and the exhaust membrane 3 are both arranged on the degassing seat 1. All the filter element mounting cavities 11 are distributed in a honeycomb shape, and the exhaust membrane 3 covers all the filter element mounting cavities 11. The circumferential side walls of the adapter seat 4 are respectively provided with a first side port 43 and a second side port 44, each of which is connected to the degassing chamber 5. When the degassing device is in use, liquid enters the degassing chamber 5 from the first side port 43, and gas can also enter each filter element mounting cavity 11 from the exhaust membrane 3 and be discharged from the packaging shell through the vent 12. The degassed liquid can be discharged through the second side port 44.

[0045] The second structural form of the degassing device is as follows Figure 4 As shown, the encapsulating shell of the degassing device only includes a degassing seat 1, which is in the shape of a cover. The cover cavity of the degassing seat 1 serves as a degassing chamber 5. The filter element mounting cavity 11 and the exhaust membrane 3 are both arranged at the inner bottom of the degassing seat 1. The exhaust membrane 3 is annular, and the filter element mounting cavities 11 are distributed in an annular array centered on the first central opening. A first external connector 15 is provided on the side of the degassing seat 1 facing away from the degassing chamber 5. A first central hole 13 is provided between the first external connector 15 and the degassing chamber 5. The inner cavity of the first external connector 15 is connected to the degassing chamber 5 through the first central hole 13. An internal thread can be provided at the lower portion of the degassing seat 1 to connect the degassing seat 1 to other components of the medical infusion device.

[0046] In general, the inlet or outlet of the degassing chamber 5 can be located at the center of the exhaust membrane 3 or outside the exhaust membrane 3. Specifically, any two of the first central hole 13, the second external joint 42, the first lateral port 43, and the second lateral port 44 can be provided on the packaging shell. The central hole and the second external joint 42 are located on the centerline of the packaging shell, and the first lateral port 43 and the second lateral port 44 are located on the circumferential sidewall of the packaging shell. Any two of the first central hole 13, the inner cavity of the second external joint 42, the first lateral port 43, and the second lateral port 44 serve as the inlet and outlet of the degassing chamber 5, respectively. When the first central hole 13 is provided on the packaging shell, a second central hole 35 is provided at the center of the exhaust membrane 3. The second central hole 35 is coaxial with the first central hole 13 and is connected to each other.

[0047] The above embodiments are merely examples for the purpose of illustrating the present invention clearly and are not intended to limit the embodiments. It is not necessary and impossible to enumerate all embodiments here. Obvious changes or modifications derived therefrom are still within the scope of protection of this technology.

Claims

1. A degassing device for a medical infusion apparatus, characterized in that: The invention comprises a packaging shell; a degassing chamber (5) is arranged in the packaging shell; a filter element installation cavity (11) is arranged on the side wall of the degassing chamber (5), and a filter element body (2) is correspondingly filled in the filter element installation cavity (11); an exhaust membrane (3) capable of covering the filter element installation cavity (11) is arranged on the inner wall of the degassing chamber (5); the gas in the degassing chamber (5) can pass through the exhaust membrane (3) and the filter element body (2) and be discharged to the external air environment; the filter element body (2) can be bidirectionally sealed when encountering water and prevent liquid from leaking; There are multiple filter element installation cavities (11), one exhaust membrane (3) covers more than two filter element installation cavities (11), and each filter element installation cavity (11) is welded and sealed by the exhaust membrane (3), and each filter element installation cavity forms an independent and sealed degassing working unit; The exhaust membrane (3) is a composite structure, wherein the water-facing side thereof is a hydrophobic and breathable membrane layer (32), and the water-repellent side thereof is a welding layer (31); the welding layer (31) is in a grid shape and can be welded to the packaging shell; All the filter element installation cavities (11) are covered by the same exhaust membrane (3), and the portion where the exhaust membrane (3) is welded to the packaging shell forms a welding line (33). The exhaust membrane (3) is separated by the welding line (33) to form a plurality of fan-shaped shielding areas (34), and each shielding area (34) covers one filter element installation cavity (11).

2. The degassing device for medical infusion equipment according to claim 1, characterized in that: There are a plurality of filter element installation cavities (11), and all of the filter element installation cavities (11) are distributed in a honeycomb shape or a matrix shape.

3. The degassing device for medical infusion equipment according to claim 1, characterized in that: The inlet or outlet of the degassing chamber (5) is arranged at the center of the exhaust membrane (3), or the inlet or outlet of the degassing chamber (5) is arranged outside the exhaust membrane (3).

4. The degassing device for medical infusion equipment according to claim 3, characterized in that: The packaging shell is provided with any two of a first central hole (13), a second external joint (42), a first side port (43) and a second side port (44); the central hole and the second external joint (42) are provided on the center line of the packaging shell, and the first side port (43) and the second side port (44) are provided on the circumferential side wall of the packaging shell; and any two of the first central hole (13), the inner cavity of the second external joint (42), the first side port (43) and the second side port (44) are used as the inlet and outlet of the degassing chamber (5), respectively.

5. The degassing device for medical infusion equipment according to claim 1, characterized in that: When the first center hole (13) is provided on the packaging shell, a second center hole (35) is provided at the center of the exhaust membrane (3), and the second center hole (35) and the first center hole (13) are coaxial and connected to each other.

6. The degassing device for medical infusion equipment according to claim 1, characterized in that: The packaging shell includes a degassing seat (1) and an adapter seat (4), wherein the degassing seat (1) is in the shape of a disc, and the adapter seat (4) is in the shape of a funnel. The degassing seat (1) is connected to the open portion of the adapter seat (4), and a degassing chamber (5) is formed between the two. The filter element mounting cavity (11) is arranged on the side of the degassing seat (1) and is covered by an exhaust membrane (3). A first central opening is arranged at the center of the degassing seat (1), and a second external joint (42) is arranged at the closed portion of the adapter seat (4). The inner cavities of the first central opening and the second external joint (42) are respectively connected to the degassing chamber (5).

7. The degassing device for medical infusion equipment according to claim 1, characterized in that: The packaging shell includes a degassing seat (1) and an adapter seat (4), wherein the degassing seat (1) is in the shape of a disc, and the adapter seat (4) is in the shape of a cylinder. The degassing seat (1) is connected to the open portion of the adapter seat (4), and a degassing chamber (5) is formed between the two. The filter element mounting cavity (11) and the exhaust membrane (3) are both arranged on the degassing seat (1); the first side opening (43) and the second side opening (44) are respectively provided at the circumferential side walls of the adapter seat (4), and the first side opening (43) and the second side opening (44) are both connected to the degassing chamber (5).

8. The degassing device for medical infusion equipment according to claim 1, characterized in that: The packaging shell includes a degassing seat (1), the degassing seat (1) is in a cover shape, the cover cavity of the degassing seat (1) is used as a degassing chamber (5), the filter element mounting cavity (11) and the exhaust membrane (3) are both arranged at the inner bottom of the degassing seat (1), and a first external joint (15) is provided on the side of the degassing seat (1) facing away from the degassing chamber (5), a first center hole (13) is provided between the first external joint (15) and the degassing chamber (5), and the inner cavity of the first external joint (15) is communicated with the degassing chamber (5) through the first center hole (13).

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