A glue filling tool and glue filling method and an oxygenator manufactured thereby

Abstract

The application discloses a glue filling tool and a glue filling method and an oxygenator manufactured by the glue filling tool. The glue filling tool comprises an inner cylinder, an outer cylinder, a bottom end glue filling assembly and a top end glue filling assembly. Two ends of the outer circumferential sidewall of the inner cylinder are respectively provided with annular recessed areas. The inner cylinder is arranged in the outer cylinder, and an oxygenation membrane filament cavity is formed between the outer circumferential sidewall of the inner cylinder and the inner circumferential sidewall of the outer cylinder. The bottom end of the outer cylinder and the inner cylinder is connected with the bottom end glue filling assembly. The bottom end glue filling assembly has an annular bottom end glue filling area. The bottom end glue filling area is communicated with the oxygenation membrane filament cavity. The outer circumferential sidewall of the bottom end glue filling area is provided with at least one first glue filling port. The top end of the outer cylinder and the inner cylinder is connected with the top end glue filling assembly. The top end glue filling assembly has an annular top end glue filling area. The top end glue filling area is communicated with the oxygenation membrane filament cavity. The outer circumferential sidewall of the top end glue filling area is provided with at least one second glue filling port. When the glue filling tool fills glue into the oxygenation membrane filament cavity, the glue can fill the annular recessed areas, so that the membrane filament and the outer circumferential sidewall of the inner cylinder are sealed.

Description

Technical Field

[0001] This application relates to the field of oxygenator manufacturing technology, and in particular to a glue-filling tool and glue-filling method, and the oxygenator manufactured therefrom. Background Technology

[0002] An oxygenator, also known as an artificial lung, is used to help critically ill patients with cardiopulmonary failure achieve continuous extracorporeal respiration and circulation. The inner cylinder of the oxygenator has membrane fibers wound around its outer periphery. After the outer cylinder is fitted over it, the annular area between the inner and outer cylinders forms an oxygenation membrane fiber cavity. Using a glue-filling tool, glue is centrifugally injected into the oxygenation membrane fiber cavity, forming sealing sections at both ends. When the oxygenator is in use, blood flows through the oxygenation membrane fiber cavity, completing gas exchange, and the blood returns to the body.

[0003] Therefore, the oxygenated membrane fiber cavity is required to have good sealing performance to prevent blood leakage and contamination. However, during glue application, the membrane fiber bundles may hinder the flow of the glue, resulting in insufficient density of the sealed section after solidification, thus affecting the sealing performance of the oxygenated membrane fiber cavity. This is especially true on the outer peripheral wall surface of the inner cylinder, where the membrane fiber bundles are wrapped around the side wall surface, affecting the flow of the glue to the outer peripheral wall surface of the inner cylinder. Summary of the Invention

[0004] To solve at least one of the above-mentioned technical problems, this application provides a glue-filling tool, a glue-filling method, and an oxygenator manufactured therefrom, and the technical solution adopted is as follows.

[0005] The dispensing fixture provided in this application includes an inner cylinder, an outer cylinder, a bottom dispensing assembly, and a top dispensing assembly. The inner cylinder has annular recessed areas at both ends of its outer peripheral sidewall. The inner cylinder is disposed within the outer cylinder, and an oxygenated membrane fiber cavity is formed between the outer peripheral sidewall of the inner cylinder and the inner peripheral sidewall of the outer cylinder. The bottom ends of both the outer cylinder and the inner cylinder are connected to the bottom dispensing assembly, which has an annular bottom dispensing area communicating with the oxygenated membrane fiber cavity. The outer peripheral sidewall of the glue-filling area is provided with at least one first glue-filling port; the top ends of the outer cylinder and the inner cylinder are both connected to the top glue-filling assembly, the top glue-filling assembly has an annular top glue-filling area, the top glue-filling area communicates with the oxygen membrane fiber cavity, and the outer peripheral sidewall of the top glue-filling area is provided with at least one second glue-filling port; wherein, when the glue-filling fixture fills the oxygen membrane fiber cavity with glue, the glue can fill the annular recessed area to seal the membrane fiber with the outer peripheral sidewall of the inner cylinder.

[0006] In some embodiments of this application, the outer peripheral sidewall of the bottom glue-filling area is provided with an annular first recessed area on the side of the bottom glue-filling area, and the port of the first glue-filling port communicating with the bottom glue-filling area is at least partially located in the first recessed area.

[0007] In some embodiments of this application, the bottom-end glue-filling assembly includes a bottom-end glue-filling structure and a bottom-end glue-overflowing structure. The bottom-end glue-filling area is disposed on the bottom-end glue-filling structure, and the bottom-end glue-overflowing structure is disposed on the cylindrical cavity formed by the inner peripheral sidewall of the bottom-end glue-filling structure. The bottom-end glue-overflowing structure has a bottom-end glue-overflowing area, and the glue overflowing from the bottom-end glue-filling area flows to the bottom-end glue-overflowing area.

[0008] In some embodiments of this application, the adhesive in the bottom filling area flows from the connecting area of ​​the inner cylinder into the bottom overflow area.

[0009] In some embodiments of this application, the bottom-end potting structure includes a bottom-end silicone inner sleeve and a bottom-end silicone outer sleeve. The bottom-end silicone inner sleeve is connected to the inner cylinder, and the bottom-end silicone outer sleeve is connected to the bottom-end silicone inner sleeve. The bottom-end silicone inner sleeve has an inner peripheral sidewall of the bottom-end potting area, and the bottom-end silicone outer sleeve has an outer peripheral sidewall of the bottom-end potting area.

[0010] In some embodiments of this application, the first injection port is disposed on the side wall of the bottom silicone outer sleeve, and the first recessed area is disposed on the side wall of the bottom silicone outer sleeve.

[0011] In some embodiments of this application, the bottom adhesive overflow structure is provided with at least two recessed first positioning areas at intervals along the outer periphery, and the bottom silicone outer sleeve is provided with at least two protruding first positioning structures at intervals along the inner periphery, the first positioning structures being located in the first positioning areas.

[0012] In some embodiments of this application, the top-filling assembly includes a top-filling structure and a top-overflowing structure. The top-filling area is disposed in the top-filling structure, and the top-overflowing structure is disposed in a cylindrical cavity formed by the inner peripheral sidewall of the top-filling structure. The top-overflowing structure has a top-overflowing area, and the glue overflowing from the top-filling area flows to the top-overflowing area.

[0013] In some embodiments of this application, the sidewall of the top overflow structure and the inner peripheral sidewall of the top filling structure are respectively provided with overflow holes corresponding to their positions, so that the glue in the top filling area flows into the top overflow area through the overflow holes.

[0014] In some embodiments of this application, the inner peripheral sidewall of the top glue-filling structure is provided with an annular second recessed area on the side of the top glue-filling area, and the port of the overflow hole communicating with the top glue-filling area is at least partially located in the second recessed area.

[0015] In some embodiments of this application, the top adhesive overflow structure is provided with at least two recessed second positioning areas at intervals along the outer peripheral contour, and the top adhesive filling structure is provided with at least two protruding second positioning structures at intervals along the inner peripheral contour, wherein the second positioning structures are located in the second positioning areas.

[0016] In some embodiments of this application, the top potting structure is made of silicone material.

[0017] In some embodiments of this application, the dispensing fixture includes a fixture cylinder, a mounting base, and a dispensing cup. The outer cylinder and the inner cylinder are disposed in the fixture cylinder. The mounting base can be detachably connected to either end of the fixture cylinder. The dispensing cup is connected to the mounting base. The mounting base is provided with a first glue channel. When the mounting base is disposed at one end of the fixture cylinder, the dispensing cup dispenses glue to the oxygenated membrane fiber cavity at the other end of the fixture cylinder through a dispensing pipeline.

[0018] In some embodiments of this application, the tooling cylinder includes end caps, and the end caps are respectively provided at both ends of the tooling cylinder, with the sidewalls of the two end caps respectively abutting against the bottom glue-filling assembly and the top glue-filling assembly.

[0019] In some embodiments of this application, the sidewall of the tooling cylinder is provided with a second glue channel at the top and bottom of the corresponding oxygen film filament cavity, and the second glue channel is provided with a right-angle connector for connecting the glue dispensing pipeline.

[0020] In some embodiments of this application, the glue-filling pipeline is provided with a one-way flow structure or the right-angle connector is provided with a one-way flow structure, wherein the one-way flow structure limits the flow direction of the glue to flow from the mounting seat to the oxygenated membrane fiber cavity.

[0021] The glue-filling method provided in this application uses the glue-filling fixture described above to fill both ends of the oxygen membrane filament cavity with glue.

[0022] The oxygenator provided in this application is manufactured using the potting method described above. The oxygenator includes an inner cylinder, an outer cylinder, and a sealing section. The two ends of the oxygenation membrane fiber cavity are respectively filled with the sealing section, and the sealing section has a sealing structure that fills the annular recessed area.

[0023] The embodiments of this application have at least the following beneficial effects: An annular recessed area is designed on the outer peripheral sidewall of the inner cylinder, thereby forming a cavity area at the location where adhesive is poured onto the sidewall surface of the inner cylinder. This allows the adhesive to flow to the outer peripheral sidewall of the inner cylinder during pouring and form an annular sealing structure in the annular recessed area. This creates a sealing structure between the membrane fibers and the outer peripheral sidewall of the inner cylinder, thereby improving the airtightness between the membrane fibers and the inner cylinder sidewall, improving the airtightness at both ends of the oxygenation membrane fiber cavity, and preventing blood leakage during oxygenation. This application can be widely applied in the field of oxygenator manufacturing technology. Attached Figure Description

[0024] The aspects and advantages described and / or added to the embodiments of this application will become apparent and readily understood in conjunction with the following drawings. It should be noted that the embodiments illustrated in the following drawings are exemplary and are used only to explain this application, and should not be construed as limiting this application.

[0025] Figure 1 This is a structural diagram of the glue-dispensing fixture.

[0026] Figure 2 for Figure 1 A cross-sectional view of the structure, showing the glue-filling tool used for filling the top of the oxygenator.

[0027] Figure 3 This is an exploded view of the tooling cylinder.

[0028] Figure 4 A cross-sectional view of the top glue-filling assembly, bottom glue-filling assembly, and oxygenator assembly.

[0029] Figure 5 This is a structural diagram of the top adhesive overflow structure.

[0030] Reference numerals: 1000, Bottom potting assembly; 1101, Bottom potting area; 1102, First potting port; 1103, First recessed area; 1201, Bottom overflow structure; 1202, Bottom silicone inner sleeve; 1203, Bottom silicone outer sleeve; 2000, Top potting assembly; 2101, Top potting area; 2102, Second potting port; 2103, Second recessed area; 2201, Top Glue overflow structure; 2202, Top glue filling structure; 2203, Glue overflow hole; 3100, Tooling cylinder; 3101, End cap; 3102, First housing; 3103, Second housing; 3201, Mounting base; 3202, Glue filling cup; 3203, Glue filling pipeline; 3204, One-way conduction structure; 4100, Inner cylinder; 4101, Annular recessed area; 4200, Outer cylinder; 4300, Oxygenated membrane fiber cavity. Detailed Implementation

[0031] The following is combined Figures 1 to 5The embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0032] In the description of this application, it should be understood that the use of terms such as "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings and is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] This application relates to a glue-filling fixture, which includes an inner cylinder 4100, an outer cylinder 4200, a bottom glue-filling assembly 1000, and a top glue-filling assembly 2000. The inner cylinder 4100 and the outer cylinder 4200 are also part of the structure of the oxygenator to be glued. The inner cylinder 4100 is disposed in the outer cylinder 4200. The inner cylinder 4100 and the outer cylinder 4200 are coaxially arranged. An oxygenation membrane filament cavity 4300 is formed between the outer peripheral sidewall of the inner cylinder 4100 and the inner peripheral sidewall of the outer cylinder 4200. The bottom ends of the outer cylinder 4200 and the inner cylinder 4100 are both connected to the bottom glue-filling assembly 1000, and the top ends of the outer cylinder 4200 and the inner cylinder 4100 are both connected to the top glue-filling assembly 2000. Understandably, the bottom glue-filling assembly 1000 is used to fill the bottom of the oxygen membrane fiber cavity 4300 with glue, and the top glue-filling assembly 2000 is used to fill the top of the oxygen membrane fiber cavity 4300 with glue.

[0035] Furthermore, annular recessed areas 4101 are respectively provided at both ends of the outer peripheral sidewall of the inner cylinder 4100. When the glue-pouring tool pours glue into the top or bottom of the oxygen membrane fiber cavity 4300, the glue can fill the annular recessed area 4101 so as to seal between the membrane fiber and the outer peripheral sidewall of the inner cylinder 4100.

[0036] This application relates to a bottom-end glue-filling assembly 1000, which is used to connect the bottom end of the oxygenator to be glued. Specifically, the bottom ends of the outer cylinder 4200 and the inner cylinder 4100 are both connected to the bottom-end glue-filling assembly 1000. The bottom-end glue-filling assembly 1000 has an annular bottom-end glue-filling area 1101, which communicates with the oxygen membrane fiber cavity 4300. It is understood that the outer peripheral sidewall of the bottom-end glue-filling area 1101 is provided with a first glue-filling port 1102, which penetrates the outer peripheral sidewall of the bottom-end glue-filling area 1101 and communicates with the bottom-end glue-filling area 1101, so that the glue enters the bottom-end glue-filling area 1101 through the first glue-filling port 1102. The glue fills the bottom end of the oxygen membrane fiber cavity and the bottom-end glue-filling area 1101 and solidifies.

[0037] Furthermore, at least one first dispensing port 1102 is provided. It is understood that, to improve dispensing efficiency and ensure uniform dispensing, at least two first dispensing ports 1102 are provided, with each first dispensing port 1102 distributed at intervals along the circumference. Further, the first dispensing ports 1102 are evenly spaced.

[0038] In one embodiment, the outer peripheral sidewall of the bottom glue-filling area 1101 is provided with an annular first recessed area 1103 on the side inside the bottom glue-filling area 1101. Referring to the attached figure, the first recessed area 1103 forms an annular groove on the side inside the bottom glue-filling area 1101. In this case, the first recessed area 1103 can form an annular groove on the surface of the membrane fiber bundle so that the colloid can flow and the colloid can fill the gaps of the membrane fiber bundle.

[0039] Furthermore, the port of the first glue-filling port 1102 that connects to the bottom glue-filling area 1101 is at least partially located in the first recessed area 1103, so that the glue can flow into the first recessed area 1103, avoiding the tightly wound membrane fibers in the oxygenated membrane fiber cavity 4300 from blocking the first glue-filling port 1102, facilitating the glue to enter the gap of the membrane fibers, and facilitating the formation of a dense sealing section.

[0040] In one embodiment, the bottom-end glue-filling assembly 1000 includes a bottom-end glue-filling structure, which is arranged in a ring shape. A bottom-end glue-filling area 1101 is disposed on the bottom-end glue-filling structure, and a first glue-filling port 1102 is disposed on the outer peripheral sidewall of the bottom-end glue-filling structure.

[0041] Referring to the accompanying drawings, the bottom-end glue-filling assembly 1000 includes a bottom-end glue-overflow structure 1201. The bottom-end glue-overflow structure 1201 is disposed in a cylindrical cavity formed by the inner peripheral sidewall of the bottom-end glue-filling structure. The outer peripheral sidewall of the bottom-end glue-overflow structure 1201 is configured as a cylindrical sidewall, and the outer peripheral sidewall of the bottom-end glue-overflow structure 1201 abuts against the inner peripheral sidewall of the bottom-end glue-filling structure. It can be understood that the bottom-end glue-overflow structure 1201 has a bottom-end glue-overflow area, and the glue overflowing from the bottom-end glue-filling area 1101 flows to the bottom-end glue-overflow area.

[0042] Specifically, the glue in the bottom glue-filling area 1101 flows from the connecting area of ​​the inner cylinder 4100 into the bottom glue-overflow area. It should be noted that the connecting area of ​​the inner cylinder 4100 is provided in the oxygenator for the blood pump rotor to pump blood from the connecting area into the oxygenation membrane fiber cavity 4300.

[0043] In one embodiment, the bottom-filling structure includes a bottom-filling inner silicone sleeve 1202 and a bottom-filling outer silicone sleeve 1203. Both the bottom-filling inner silicone sleeve 1202 and the bottom-filling outer silicone sleeve 1203 are arranged in a ring shape. The bottom-filling inner silicone sleeve 1202 is connected to the inner cylinder 4100, and the bottom-filling outer silicone sleeve 1203 is connected to the bottom-filling inner silicone sleeve 1202. The bottom-filling inner silicone sleeve 1202 has an inner peripheral sidewall of the bottom-filling area 1101, and the bottom-filling outer silicone sleeve 1203 has an outer peripheral sidewall of the bottom-filling area 1101. Referring to the accompanying drawings, the bottom-filling outer silicone sleeve 1203 and the bottom-filling inner silicone sleeve 1202, after assembly, form the bottom-filling area 1101.

[0044] Referring to the attached drawings, the first injection port 1102 is disposed on the side wall of the bottom silicone outer sleeve 1203, and the first recessed area 1103 is disposed on the side wall of the bottom silicone outer sleeve 1203. The first recessed area 1103 is located on the side of the bottom silicone outer sleeve 1203 facing the bottom injection area 1101.

[0045] Understandably, the bottom potting structure is made of silicone material, which makes it easy to cut the bottom potting structure after potting.

[0046] In one embodiment, the bottom adhesive overflow structure 1201 has at least two recessed first positioning areas spaced apart along its outer periphery, and the bottom silicone outer sleeve 1203 has at least two protruding first positioning structures spaced apart along its inner periphery. The positions of the first positioning structures and the first positioning areas correspond. Referring to the accompanying drawings, the first positioning structures are located in the first positioning areas to position and connect the bottom adhesive overflow structure 1201 and the bottom silicone outer sleeve 1203.

[0047] This application relates to a top-filling assembly 2000, which is used to connect the top of an oxygenator to be filled with adhesive. Specifically, the tops of both the outer cylinder 4200 and the inner cylinder 4100 are connected to the top-filling assembly 2000. The top-filling assembly 2000 has an annular top-filling area 2101, which communicates with the oxygen membrane fiber cavity 4300. It is understood that a second filling port 2102 is provided on the outer peripheral sidewall of the top-filling area 2101. The second filling port 2102 penetrates the outer peripheral sidewall of the top-filling area 2101 and communicates with the top-filling area 2101, so that the adhesive enters the top-filling area 2101 through the second filling port 2102. The adhesive fills the top of the oxygen membrane fiber cavity and the top-filling area 2101 and solidifies.

[0048] Furthermore, at least one second dispensing port 2102 is provided. It is understood that, to improve dispensing efficiency and ensure uniform dispensing, at least two second dispensing ports 2102 are provided, with each second dispensing port 2102 distributed at intervals along the circumference. Further, the second dispensing ports 2102 are evenly spaced.

[0049] In one embodiment, the top-filling assembly 2000 includes a top-filling structure 2202, which is arranged in a ring shape. A top-filling area 2101 is disposed on the top-filling structure 2202, and a second filling port 2102 is disposed on the outer peripheral sidewall of the top-filling structure 2202.

[0050] Referring to the accompanying drawings, the top-filling assembly 2000 includes a top-overflow structure 2201. The top-overflow structure 2201 is disposed within a cylindrical cavity formed by the inner peripheral sidewall of the top-filling structure 2202. The outer peripheral sidewall of the top-overflow structure 2201 is configured as a cylindrical sidewall, and the outer peripheral sidewall of the top-overflow structure 2201 abuts against the inner axial sidewall of the top-filling structure 2202. It can be understood that the top-overflow structure 2201 has a top-overflow area, and the adhesive overflowing from the top-filling area 2101 flows to the top-overflow area.

[0051] Specifically, the sidewalls of the top overflow structure 2201 and the inner circumferential sidewalls of the top filling structure 2202 are respectively provided with corresponding overflow holes 2203, so that the glue in the top filling area 2101 flows into the top overflow area through the overflow holes 2203. The overflow holes 2203 are radially connected to the top overflow area along the top overflow structure 2201. It can be understood that multiple overflow holes 2203 are spaced apart along the circumference.

[0052] In some examples, the inner peripheral sidewall of the top filling structure 2202 is provided with an annular second recessed area 2103 on the side inside the top filling area 2101. The second recessed area 2103 forms an annular groove. The port of the overflow hole 2203 connected to the top filling area 2101 is at least partially located in the second recessed area 2103, which facilitates the overflow of excess glue along the second recessed area 2103 to the overflow hole 2203, and prevents the membrane fiber bundle from clogging the port of the overflow hole 2203.

[0053] In one embodiment, the top adhesive overflow structure 2201 has at least two recessed second positioning areas spaced apart along its outer periphery, and the top adhesive filling structure 2202 has at least two protruding second positioning structures spaced apart along its inner periphery. The positions of the second positioning structures correspond to the positions of the second positioning areas. Referring to the accompanying drawings, the second positioning structures are located in the second positioning areas to position and connect the top adhesive overflow structure 2201 and the top adhesive filling structure 2202.

[0054] As one implementation, the top potting structure 2202 is made of silicone material, which makes it easy to cut the top potting structure 2202 after potting.

[0055] This application relates to a dispensing fixture, which includes a fixture cylinder 3100, a mounting base 3201, and a dispensing cup 3202. An outer cylinder 4200 and an inner cylinder 4100 are disposed within the fixture cylinder 3100. The dispensing cup 3202 is connected to the mounting base 3201, which can be detachably connected to either end of the fixture cylinder 3100. Further, the mounting base 3201 is provided with a first adhesive channel, and the inner cavity of the dispensing cup 3202 communicates with the first adhesive channel. The first adhesive channel dispenses adhesive into the oxygen membrane fiber cavity 4300 via a dispensing conduit 3203. Referring to the accompanying drawings, the mounting base 3201 is disposed at one end of the fixture cylinder 3100, and the dispensing cup 3202 dispenses adhesive into the oxygen membrane fiber cavity 4300 from the other end of the fixture cylinder 3100 via the dispensing conduit 3203. Under the action of centrifugal force and gravity, the dispensing fixture dispenses adhesive into the oxygen membrane fiber cavity 4300.

[0056] Taking the oxygenator to be glued as an example, with the top end of the tooling cylinder 3100 located at the first end and the bottom end located at the second end, after the mounting base 3201 is connected to the first end of the tooling cylinder 3100 and the bottom end of the oxygen membrane fiber cavity 4300 is glued, the tooling cylinder 3100 is flipped over, the mounting base 3201 is disassembled and installed to the second end of the tooling cylinder 3100, and glue is injected into the oxygen membrane fiber cavity 4300 through the glue injection pipeline 3203, thus completing the glue injection of the top end of the oxygen membrane fiber cavity 4300.

[0057] In some examples, the glue-filling line 3203 is a flexible tube. In some examples, the glue-filling line 3203 is made of a transparent material to allow for observation of any blockages.

[0058] In one implementation, the sidewall of the tooling cylinder 3100 is provided with second adhesive channels at the top and bottom of the corresponding oxygen membrane fiber cavity 4300, and the second adhesive channels communicate with the oxygen membrane fiber cavity 4300. It can be understood that when the mounting base 3201 is provided at the first end of the tooling cylinder 3100, the glue filling pipeline 3203 is connected to the first adhesive channel and the second adhesive channel on the tooling cylinder 3100 near the second end, respectively.

[0059] Furthermore, to increase dispensing efficiency, the sidewall of the mounting base 3201 is provided with at least two first adhesive channels at intervals along its outer periphery, and correspondingly, the sidewall of the tooling cylinder 3100 is provided with at least two second adhesive channels at intervals along its outer periphery. It is understood that the sidewall of the tooling cylinder 3100 is provided with at least two second adhesive channels near both ends.

[0060] In some examples, both the first and second adhesive channels are equally spaced along the circumference to ensure uniform adhesive distribution. Referring to the accompanying drawings, the side wall of the mounting base 3201 has two equally spaced first adhesive channels, and correspondingly, the side wall of the tooling cylinder 3100 has two second adhesive channels near both ends.

[0061] In one embodiment, the dispensing line 3203 is provided with a one-way flow structure 3204, which is located in the middle of the dispensing line 3203. The one-way flow structure 3204 limits the flow direction of the adhesive to flow from the mounting base 3201 to the oxygen membrane fiber cavity 4300. Specifically, when the centrifuge drives the dispensing fixture to perform centrifugal motion, the adhesive in the dispensing line 3203 breaks through the one-way flow structure 3204 and flows into the oxygen membrane fiber cavity 4300, breaking through the elastic structure in the one-way flow structure 3204.

[0062] Considering the low viscosity and good flowability of the colloid, under the action of centrifugal force and the pressure of the colloid itself, the colloid can break through the one-way conduction structure 3204. The one-way conduction structure 3204 is designed to prevent the colloid from flowing into the oxygen membrane fiber cavity 4300 before the centrifuge is started, avoid the colloid hardening and clogging of the pipeline and colloid channel, and eliminate air bubbles in the colloid.

[0063] In some examples, the one-way conduction structure 3204 is configured as a one-way valve.

[0064] In one implementation, the second glue channel is provided with a right-angle connector for connecting the glue dispensing line 3203. The right-angle connector is connected to the tooling cylinder. Guided by the right-angle connector, the glue can enter radially along the oxygenator, which is beneficial to the flow of the glue and can improve the glue dispensing speed. It is understood that the connection between the glue dispensing line 3203 and the right-angle connector is detachable. When the oxygenator to be dispensed is turned over, the right-angle connectors at both ends of the tooling cylinder can be easily connected to the glue dispensing line.

[0065] As an alternative to the unidirectional conduction structure 3204, it can also be designed as follows: the right-angle connector is equipped with the unidirectional conduction structure 3204.

[0066] In one embodiment, the tooling cylinder 3100 includes end caps 3101, with end caps 3101 respectively provided at both ends of the tooling cylinder 3100. It can be understood that the tooling cylinder 3100 includes an outer peripheral shell, with end caps 3101 respectively provided at both ends of the outer peripheral shell, and an outer cylinder 4200 disposed in the outer peripheral shell. Further, a second adhesive channel is disposed in the outer peripheral shell.

[0067] Furthermore, the side walls of the two end caps 3101 respectively abut against the bottom end glue-filling assembly 1000 and the top end glue-filling assembly 2000, so that the bottom end glue-filling assembly 1000 presses the bottom end of the outer cylinder 4200 and the inner cylinder 4100, and the top end glue-filling assembly 2000 presses the top end of the outer cylinder 4200 and the inner cylinder 4100, thereby fixing the oxygenator to be glued in the tooling cylinder 3100.

[0068] In one embodiment, the outer peripheral housing includes a first housing 3102 and a second housing 3103. The two ends of the first housing 3102 are respectively connected to the second housing 3103. It can be understood that the end cap 3101 is disposed in the second housing 3103 and the second adhesive channel is disposed in the first housing 3102.

[0069] Furthermore, the outer periphery is divided into at least two parts along its length to facilitate the assembly and disassembly of the tooling cylinder 3100. In some examples, referring to the accompanying drawings, the outer periphery is divided into two halves; in this case, the first shell 3102 and the second shell 3103 are each divided into two halves.

[0070] This application relates to a glue-filling method, which involves filling both ends of the oxygen membrane filament cavity 4300 of the oxygenator to be filled with glue, and the glue-filling method is implemented using the aforementioned glue-filling tooling.

[0071] It is understandable that annular recessed areas 4101 are respectively provided on the outer peripheral sidewalls at both ends of the inner cylinder 4100. When the adhesive is injected into the oxygen membrane fiber cavity 4300, the adhesive can fill the annular recessed areas 4101. Thus, the sealing section obtained after the adhesive solidifies has a sealing structure that fills the annular recessed areas 4101, so as to seal the membrane fiber with the outer peripheral sidewall of the inner cylinder 4100.

[0072] This application relates to an oxygenator, which includes an inner cylinder 4100, an outer cylinder 4200, and a sealing section. Membrane fibers are wound around the outer peripheral wall of the inner cylinder 4100. After the outer cylinder 4200 is fitted over the inner cylinder, an oxygenation membrane fiber cavity 4300 is formed. Sealing sections are respectively filled at both ends of the oxygenation membrane fiber cavity 4300. It is understood that the above-described glue-filling method is used to seal the top and bottom ends of the oxygenator separately, thereby obtaining sealing sections at both ends of the oxygenation membrane fiber cavity 4300.

[0073] It should be noted that before winding the membrane filaments, the top glue-filling assembly 2000 is connected to the top of the inner cylinder 4100, and the bottom glue-overflowing structure 1201 and the bottom silicone inner sleeve 1202 are connected to the bottom of the inner cylinder 4100. During membrane filament winding, the outer peripheral sidewall of the top glue-filling structure 2202 is turned outward. After the membrane filament winding is completed, the outer cylinder 4200 is fitted, and the bottom silicone inner sleeve 1202 is fitted with the bottom silicone outer sleeve 1203. After assembly, the oxygenator to be glued is placed in the tooling cylinder 3100, and glue filling is completed using a centrifuge.

[0074] Furthermore, annular recessed areas 4101 are respectively provided on the outer peripheral sidewalls at both ends of the inner cylinder 4100. The annular recessed areas 4101 form annular grooves on the outer peripheral sidewalls of the inner cylinder 4100, so that when sealing, the adhesive can flow into the annular recessed areas 4101. After the adhesive solidifies, the sealing section has a sealing structure that fills the annular recessed areas 4101.

[0075] In this case, the formation of a ring-shaped, dense sealing structure between the membrane fiber bundle and the outer peripheral sidewall of the inner cylinder 4100 is beneficial to improving the airtightness of the oxygenated membrane fiber cavity 4300. On the other hand, it can also improve the bonding strength between the sealing section and the inner cylinder 4100.

[0076] In the description of this specification, the use of terms such as "an embodiment," "some examples," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

[0078] In the description of this application, the presence of a comma ("、") in the patent title indicates an "and" relationship, not an "or" relationship. For example, if the patent title is "A and B", it means that the content claimed in this application is: a technical solution with the subject matter title A and a technical solution with the subject matter title B.

Claims

1. A dispensing fixture for dispensing adhesive into an oxygenator, characterized in that: include The inner cylinder (4100) has an annular recessed area (4101) at both ends of the outer peripheral sidewall. An outer cylinder (4200) is provided in the outer cylinder (4200), and an oxygenated membrane fiber cavity is formed between the outer peripheral sidewall of the inner cylinder (4100) and the inner peripheral sidewall of the outer cylinder (4200). Bottom-end glue-filling assembly (1000), the bottom ends of the outer cylinder (4200) and the inner cylinder (4100) are both connected to the bottom-end glue-filling assembly (1000), the bottom-end glue-filling assembly (1000) has an annular bottom-end glue-filling area (1101), the bottom-end glue-filling area (1101) communicates with the oxygen membrane fiber cavity (4300), and at least one first glue-filling port (1102) is provided on the outer peripheral sidewall of the bottom-end glue-filling area (1101). Top-filling assembly (2000), the top ends of the outer cylinder (4200) and the inner cylinder (4100) are both connected to the top-filling assembly (2000), the top-filling assembly (2000) has an annular top-filling area (2101), the top-filling area (2101) communicates with the oxygen membrane fiber cavity (4300), and at least one second filling port (2102) is provided on the outer peripheral sidewall of the top-filling area (2101). When the glue-filling tool fills the oxygenated membrane fiber cavity (4300) with glue, the glue can fill the annular recessed area (4101) so as to seal the membrane fiber with the outer peripheral sidewall of the inner cylinder (4100).

2. The dispensing fixture according to claim 1, characterized in that: The outer peripheral sidewall of the bottom glue-filling area (1101) is provided with an annular first recessed area (1103) on the side inside the bottom glue-filling area (1101), and the port of the first glue-filling port (1102) connected to the bottom glue-filling area (1101) is at least partially located in the first recessed area (1103).

3. The dispensing fixture according to claim 2, characterized in that: The bottom-end glue-filling assembly (1000) includes a bottom-end glue-filling structure and a bottom-end glue-overflowing structure (1201). The bottom-end glue-filling area (1101) is disposed on the bottom-end glue-filling structure, and the bottom-end glue-overflowing structure (1201) is disposed on the cylindrical cavity formed by the inner peripheral sidewall of the bottom-end glue-filling structure. The bottom-end glue-overflowing structure (1201) has a bottom-end glue-overflowing area, and the glue overflowing from the bottom-end glue-filling area (1101) flows to the bottom-end glue-overflowing area.

4. The dispensing fixture according to claim 3, characterized in that: The adhesive in the bottom filling area (1101) flows from the connecting area of ​​the inner cylinder (4100) into the bottom overflow area.

5. The dispensing fixture according to claim 3, characterized in that: The bottom-end glue-filling structure includes a bottom-end silicone inner sleeve (1202) and a bottom-end silicone outer sleeve (1203). The bottom-end silicone inner sleeve (1202) is connected to the inner cylinder (4100), and the bottom-end silicone outer sleeve (1203) is connected to the bottom-end silicone inner sleeve (1202). The bottom-end silicone inner sleeve (1202) has an inner peripheral sidewall of the bottom-end glue-filling area (1101), and the bottom-end silicone outer sleeve (1203) has an outer peripheral sidewall of the bottom-end glue-filling area (1101).

6. The dispensing fixture according to claim 5, characterized in that: The first injection port (1102) is located on the side wall of the bottom silicone outer sleeve (1203), and the first recessed area (1103) is located on the side wall of the bottom silicone outer sleeve (1203).

7. The dispensing fixture according to claim 5 or 6, characterized in that: The bottom adhesive overflow structure (1201) has at least two recessed first positioning areas spaced apart along its outer periphery, and the bottom silicone outer sleeve (1203) has at least two protruding first positioning structures spaced apart along its inner periphery, with the first positioning structures located in the first positioning areas.

8. The dispensing fixture according to claim 1, characterized in that: The top-filling assembly (2000) includes a top-filling structure (2202) and a top-overflowing structure (2201). The top-filling area (2101) is disposed on the top-filling structure (2202). The top-overflowing structure (2201) is disposed on the cylindrical cavity formed by the inner peripheral sidewall of the top-filling structure (2202). The top-overflowing structure (2201) has a top-overflowing area. The glue overflowing from the top-filling area (2101) flows to the top-overflowing area.

9. The dispensing fixture according to claim 8, characterized in that: The sidewall of the top overflow structure (2201) and the inner peripheral sidewall of the top filling structure (2202) are respectively provided with overflow holes (2203) at corresponding positions, so that the glue in the top filling area (2101) flows into the top overflow area through the overflow holes (2203).

10. The dispensing fixture according to claim 9, characterized in that: The inner peripheral sidewall of the top glue-filling structure (2202) is provided with an annular second recessed area (2103) on the side of the top glue-filling area (2101), and the port of the overflow hole (2203) connected to the top glue-filling area (2101) is at least partially located in the second recessed area (2103).

11. The dispensing fixture according to any one of claims 8 to 10, characterized in that: The top overflow structure (2201) has at least two recessed second positioning areas spaced apart along its outer periphery, and the top potting structure (2202) has at least two protruding second positioning structures spaced apart along its inner periphery, with the second positioning structures located in the second positioning areas.

12. The dispensing fixture according to any one of claims 8 to 10, characterized in that: The top potting structure (2202) is made of silicone material.

13. The dispensing fixture according to any one of claims 1 to 6 or any one of claims 8 to 10, characterized in that: The dispensing fixture includes a fixture cylinder (3100), a mounting base (3201), and a dispensing cup (3202). The outer cylinder (4200) and the inner cylinder (4100) are disposed in the fixture cylinder (3100). The mounting base (3201) can be detachably connected to either end of the fixture cylinder (3100). The dispensing cup (3202) is connected to the mounting base (3201). The mounting base (3201) is provided with a first glue channel. When the mounting base (3201) is disposed at one end of the fixture cylinder (3100), the dispensing cup (3202) dispenses glue to the other end of the fixture cylinder (3100) through the dispensing pipeline (3203) into the oxygen membrane fiber cavity (4300).

14. The dispensing fixture according to claim 13, characterized in that: The tooling cylinder (3100) includes end caps (3101), and the end caps (3101) are respectively provided at both ends of the tooling cylinder (3100). The side walls of the two end caps (3101) respectively abut against the bottom glue-filling assembly (1000) and the top glue-filling assembly (2000).

15. The dispensing fixture according to claim 13, characterized in that: The tooling cylinder (3100) has a second glue channel at the top and bottom of the corresponding oxygen membrane fiber cavity (4300) on its side wall. The second glue channel is provided with a right-angle connector for connecting the glue dispensing pipeline (3203).

16. The dispensing fixture according to claim 15, characterized in that: The glue-filling pipeline (3203) is provided with a one-way flow structure (3204) or the right-angle connector is provided with a one-way flow structure (3204). The one-way flow structure (3204) limits the flow direction of the glue to flow from the mounting base (3201) to the oxygen membrane fiber cavity (4300).

17. A method for dispensing adhesive, characterized in that: The glue-filling method uses the glue-filling fixture as described in any one of claims 1 to 16 to fill both ends of the oxygen membrane filament cavity (4300).

18. An oxygenator, characterized in that: The oxygenator is manufactured using the potting method as described in claim 17. The oxygenator includes the inner cylinder (4100), the outer cylinder (4200), and a sealing section. The two ends of the oxygenation membrane fiber cavity (4300) are respectively filled with the sealing section, and the sealing section has a sealing structure that fills the annular recessed area (4101).

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