Catheter cleaning device

Abstract

The utility model relates to the technical field of medical instruments, and discloses a catheter cleaning device which comprises a shell and a cover body, the shell is provided with a cleaning flow channel used for circulation of cleaning liquid, a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are communicated with the cleaning flow channel. The sectional area of the cleaning flow channel in the direction perpendicular to the flowing direction of cleaning liquid is gradually increased from the liquid inlet to the liquid outlet; the cover body is detachably arranged at the liquid outlet and covers the liquid outlet, a plurality of cleaning holes communicated with the liquid outlet are formed in the cover body in a penetrating mode, the cleaning holes are used for installing the bearing part, the bearing part is used for installing the guide pipe, and when the guide pipe and the bearing part are installed on the cover body, the liquid outlet, the cleaning holes and the guide pipe are sequentially communicated. The cleaning effect of the catheter cleaning device on the inner wall of the catheter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a catheter cleaning device. Background Art

[0002] In recent years, with the increasing prevalence of cardiovascular and cerebrovascular diseases, interventional treatment technologies for such diseases have become more mature, and the market for medical devices used in interventional treatment has also seen rapid growth. According to the different paths to the lesion, interventional treatment can be divided into "intravascular intervention" and "non-intravascular intervention", and the catheter is an indispensable medical device in both interventional treatments. During interventional surgery, the catheter is mainly responsible for building a delivery pathway, such as guidewire exchange, drugs, implants reaching the lesion, and other operations that require the catheter as a pathway. Especially during intravascular interventional surgery, it can also effectively protect the inner wall of the blood vessel from damage by other medical devices during the operation. As an interventional surgical medical device, the catheter must be strictly cleaned and sterilized before use to ensure that the microorganisms and particles on the surface of the catheter are qualified. The key factor affecting the microorganisms and particles of the catheter is the cleaning process during the production of the catheter.

[0003] In the prior art, the method for cleaning the catheter is basically ultrasonic cleaning, that is, placing the catheter in an ultrasonic cleaning machine to shake off the dirt attached to the catheter surface through cavitation. Although this method has a significant cleaning effect on the outer surface of the catheter, it has one disadvantage: the inner cavity of the catheter is narrow and elongated, which is not conducive to the self-circulation of the cleaning medium. After cavitation, the dirt that falls off reattaches to the inner cavity, resulting in the cleaning effect of the inner cavity of the catheter being far less than that of the outer surface of the catheter. Utility Model Content

[0004] The main purpose of the utility model is to provide a catheter cleaning device, aiming to improve the cleaning effect of the catheter cleaning device on the inner wall of the catheter.

[0005] To achieve the above-mentioned purpose, the utility model provides a catheter cleaning device, which comprises: a housing having a cleaning flow channel for the circulation of cleaning liquid and a liquid inlet and a liquid outlet connected to the cleaning flow channel, wherein the cross-sectional area of ​​the cleaning flow channel along a direction perpendicular to the flow direction of the cleaning liquid gradually increases from the liquid inlet toward the liquid outlet; and

[0006] The cover body is detachably arranged at the liquid outlet and covers the liquid outlet. The cover body is provided with a plurality of cleaning holes connected with the liquid outlet. The cleaning holes are used to connect with the catheter. When the catheter is installed on the cover body, the liquid outlet, the cleaning holes and the catheter are connected in sequence.

[0007] In one embodiment, the catheter cleaning device further includes a sealing member, a first groove is provided on a side of the shell close to the liquid outlet or a side of the cover body close to the shell, the sealing member is partially located in the first groove and abuts against the cover body or the shell, and the sealing member is used to prevent the cleaning liquid from flowing out from the cleaning flow channel along the gap between the shell and the cover body.

[0008] In one embodiment, the shell includes a plurality of interconnected connecting plates, the plurality of connecting plates enclose the cleaning flow channel, and the connection between two adjacent connecting plates is arranged in an arc shape.

[0009] In one embodiment, a connecting flange is provided at the liquid inlet, and the connecting flange is used to connect to an ultrasonic cleaning machine. A second groove is provided on a side of the connecting flange away from the shell, and the second groove is used to connect to a waterproof component.

[0010] In one embodiment, a first connecting hole is formed through the outer edge of the cover body, and a second connecting hole connected to the first connecting hole is formed on a side of the shell close to the cover body, and a fixing member passes through the first connecting hole and the second connecting hole to detachably connect the cover body to the shell.

[0011] In one embodiment, the catheter cleaning device further includes a connecting assembly, wherein the connecting assembly includes a bearing member, one end of the bearing member is connected to the cover body and communicated with the cleaning hole, and the other end is used to communicate with the catheter.

[0012] In one embodiment, the carrier includes an inlet section and an outlet section connected to each other, one end of the inlet section is connected to the cleaning hole, and the other end is connected to the outlet section, and one end of the outlet section away from the inlet section is used to connect to a conduit, and the inner diameter of the inlet section is larger than the inner diameter of the outlet section.

[0013] In one embodiment, the connection assembly further comprises a silicone sleeve, one end of which is sleeved outside the outlet section and the other end of which is sleeved outside the catheter, and the silicone sleeve is used to prevent the cleaning liquid from flowing out of the outlet section.

[0014] In one embodiment, the connection assembly further includes a blocking member, and the blocking member is detachably connected to the cleaning hole to block the cleaning hole.

[0015] In one embodiment, the inner wall of the cleaning hole is provided with an internal thread, and the blocking member is provided with an external thread, and the external thread is threadedly connected to the cover body, so that the blocking member can be detachably connected to the cleaning hole.

[0016] The technical solution of the utility model is to gradually increase the cross-sectional area of ​​the cleaning flow channel along the direction perpendicular to the flow direction of the cleaning liquid from the liquid inlet to the liquid outlet, and the cross-sectional area is roughly conical. According to the Pascal principle, this structural design can effectively reduce the difference in water flow pressure between different cleaning holes when cleaning the catheter, and ensure that there is no obvious difference in the flushing effect between the inner cavities of each catheter during cleaning. In addition, the cover body can be detachably installed on the shell, which facilitates the cleaning and maintenance of the cleaning flow channel and avoids the accumulation of dirt and even the blockage of the inner cavity of the catheter during the flushing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 It is an exploded view of the catheter cleaning device of the utility model;

[0019] Figure 2 It is the assembly drawing of the pipe cleaning device of the utility model;

[0020] Figure 3 This is a schematic structural diagram of an embodiment of the catheter cleaning device of the utility model;

[0021] Figure 4 This is a structural schematic diagram of another embodiment of the catheter cleaning device of the utility model;

[0022] Figure 5 This is a structural schematic diagram of another embodiment of the catheter cleaning device of the utility model;

[0023] Figure 6 It is a cross-sectional view of the catheter cleaning device of the utility model along a direction perpendicular to the flow direction of the cleaning liquid.

[0024] Description of Figure Numbers:

[0025] 100-catheter cleaning device, 200-catheter;

[0026] 110-housing, 110a-cleaning channel, 110b-liquid inlet, 110c-liquid outlet, 110d-first groove, 110e-second connecting hole, 112-connecting plate, 113-connecting flange, 113a-second groove;

[0027] 120-cover body, 120a-cleaning hole, 120b-first connecting hole;

[0028] 130-seal;

[0029] 140-connection assembly, 141-carrying part, 142-silicone sleeve, 143-sealing part, 144-Luer connector standard part.

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] In recent years, with the increasing prevalence of cardiovascular and cerebrovascular diseases, interventional treatment technologies for such diseases have become more mature, and the market for medical devices used in interventional treatment has also seen rapid growth. According to the different paths to the lesion, interventional treatment can be divided into "intravascular intervention" and "non-intravascular intervention", and the catheter is an indispensable medical device in both interventional treatments. During interventional surgery, the catheter is mainly responsible for building a delivery pathway, such as guidewire exchange, drugs, implants reaching the lesion, and other operations that require the catheter as a pathway. Especially during intravascular interventional surgery, it can also effectively protect the inner wall of the blood vessel from damage by other medical devices during the operation. As an interventional surgical medical device, the catheter must be strictly cleaned and sterilized before use to ensure that the microorganisms and particles on the surface of the catheter are qualified. The key factor affecting the microorganisms and particles of the catheter is the cleaning process during the production of the catheter.

[0035] In the prior art, the method for cleaning the catheter is basically ultrasonic cleaning, that is, the catheter is placed in an ultrasonic cleaning machine to shake off the dirt attached to the catheter surface through cavitation. Although this method has a significant cleaning effect on the outer surface of the catheter, it has one disadvantage: the inner cavity of the catheter is narrow and elongated and is not conducive to the self-circulation of the cleaning medium. After cavitation, the dirt that falls off reattaches to the inner cavity, resulting in the cleaning effect of the inner cavity of the catheter being far less than that of the outer surface of the catheter.

[0036] Cavitation can be caused by ultrasound or water force. Ultrasonic cavitation refers to the vibration of tiny bubble nuclei in the liquid under the action of ultrasound. When the sound pressure reaches a certain value, the bubble will expand rapidly and then suddenly close, generating a shock wave when the bubble closes. This expansion, closing, oscillation and other series of dynamic processes.

[0037] To solve the above problems, please refer to Figures 1 to 6 The utility model provides a catheter cleaning device 100, which includes: a shell 110 and a cover 120. The shell 110 has a cleaning channel 110a for the circulation of cleaning liquid, and a liquid inlet 110b and a liquid outlet 110c connected to the cleaning channel 110a. The cross-sectional area of ​​the cleaning channel 110a along the direction perpendicular to the flow direction of the cleaning liquid gradually increases from the liquid inlet 110b to the liquid outlet 110c. The cover 120 is detachably arranged at the liquid outlet 110c and covers the liquid outlet 110c. A plurality of cleaning holes 120a connected to the liquid outlet 110c are provided through the cover 120. The cleaning holes 120a are used to connect with the catheter 200. When the catheter 200 is installed on the cover 120, the liquid outlet 110c, the cleaning holes 120a and the catheter 200 are connected in sequence.

[0038] In this embodiment, the cross-sectional area of ​​the cleaning flow channel 110a along the direction perpendicular to the flow direction of the cleaning liquid gradually increases from the liquid inlet 110b toward the liquid outlet 110c, and the cross-sectional area is roughly conical. According to the Pascal principle, this structural design can effectively reduce the difference in water flow pressure between different cleaning holes 120a when cleaning the catheter 200, and ensure that there is no obvious difference in the flushing effect between the inner cavities of each catheter 200 during cleaning. In this embodiment, the cover 120 is detachably mounted on the housing 110, which facilitates the cleaning and maintenance of the cleaning flow channel 110a and avoids the accumulation of dirt or even the blockage of the inner cavity of the catheter 200 during the flushing process. In one embodiment, a plurality of cleaning holes 120a are arranged at intervals along the length and width direction of one side of the cover body 120 close to the shell 110, and various numbers of cleaning holes 120a are formed according to actual needs. Among them, the utility model optionally forms 13 cleaning holes 120a in the length direction and 11 cleaning holes 120a in the width direction, forming a total of 143 cleaning holes 120a, each cleaning hole 120a can clean a catheter 200, that is, this cleaning tool can clamp 143 catheters 200 at the same time and flush each catheter 200 separately, while solving the problem of flushing the dirty lumen of the catheter 200, it can also ensure batch cleaning without affecting production capacity. It should be noted that a certain spacing space needs to be reserved between each adjacent hole position to reduce the difficulty of clamping the catheter 200. In other embodiments, the number of cleaning holes 120a is not limited.

[0039] It should be noted that Pascal's principle points out that when the shape of the container is a cone, the pressure generated by the liquid is related to the angle of the cone. The smaller the cone angle, the greater the pressure generated by the liquid. If the cleaning channel 110a in the shell 110 is a regular cube or a cylinder as a whole, the water pressure of the cleaning hole 120a corresponding to the liquid inlet on the cover 120 will be relatively high, and the remaining cleaning holes 120a will be centered on the aforementioned cleaning hole 120a and tend to be dispersed. The closer to the edge, the smaller the water pressure. Therefore, this embodiment avoids the aforementioned problem by designing the cross-section of the container to be conical, thereby reducing the difference in water flow pressure between different cleaning holes 120a when cleaning the catheter 200.

[0040] In addition, since the shell 110 and the cover 120 are often exposed to some cleaning solvents during the cleaning process, the shell 110 and the cover 120 can be made of some corrosion-resistant metals as raw materials, such as 304 stainless steel, 316L stainless steel, etc. to increase the service life of the catheter cleaning device 100.

[0041] In the embodiments of the present invention, please refer to Figure 1The catheter cleaning device 100 further includes a sealing member 130. A first groove 110d is provided on one side of the shell 110 close to the liquid outlet 110c or on one side of the cover 120 close to the shell 110. The sealing member 130 is partially located in the first groove 110d and abuts against the cover 120 or the shell 110. The sealing member 130 is used to prevent the cleaning liquid from flowing out from the cleaning channel 110a along the gap between the shell 110 and the cover 120.

[0042] In this embodiment, in order to ensure the sealing of the cleaning flow channel 110a, the gap between the housing 110 and the cover 120 is sealed by the seal 130, thereby preventing the cleaning liquid from flowing out of the cleaning flow channel 110a. In one embodiment, the side of the housing 110 close to the liquid outlet 110c is rectangular, and the cover 120 is formed in a shape similar to the side of the housing 110 close to the liquid outlet 110c. The first groove 110d is located on the outer edge of the housing 110 and extends along the perimeter of the rectangle. The seal 130 is at least partially located in the first groove 110d. When the cover 120 is installed on the housing 110, the seal 130 is tightly pressed against part of the housing 110 to improve the sealing of the catheter cleaning device 100. It can be understood that the size of the seal 130 should match the size of the first groove 110d to achieve a better sealing effect. In some embodiments, the width of the first groove 110d may be 5-7 mm and the depth may be 2.0-3.0 mm, wherein the first groove 110d is preferably 6 mm wide and 2.5 mm deep.

[0043] In some embodiments, the seal 130 can select corrosion-resistant materials such as PVC (polyvinyl chloride), PC (polycarbonate), PE (polyethylene), PTFE (polytetrafluoroethylene) as raw materials to ensure that the seal 130 is not corroded by some corrosive cleaning fluids, thereby ensuring the sealing of the cleaning channel 110a.

[0044] In the embodiments of the present invention, please refer to Figure 4 and Figure 5 The housing 110 includes a plurality of interconnected connecting plates 112 , the plurality of connecting plates 112 enclose a cleaning channel 110 a , and the connection between two adjacent connecting plates 112 is arranged in an arc shape.

[0045] In this embodiment, in order to ensure the cleanliness of the inner wall of the housing 110, the connecting plate 112 is connected at an angle with an arc, i.e., a rounded corner design, which facilitates the cleaning of the inner wall during subsequent use and avoids the occurrence of dirt in the angle that is difficult to clean. In other embodiments, the cross-section of the housing 110 is trapezoidal, and this design avoids the problem of the inner wall of the housing 110 having an angle that makes it difficult to clean dirt.

[0046] In the embodiments of the present invention, please refer to Figure 2 and Figure 3A connecting flange 113 is provided at the liquid inlet 110b, and the connecting flange 113 is used to connect to an ultrasonic cleaning machine. A second groove 113a is provided on a side of the connecting flange 113 away from the housing 110, and the second groove 113a is used to connect to a waterproof member.

[0047] In this embodiment, in order to improve the waterproofness of the connection between the housing 110 and the water outlet pipe of the ultrasonic cleaning machine, a connecting flange 113 is provided at the liquid outlet 110c of the housing 110, and a second groove 113a for placing a waterproof member is provided on the side of the connecting flange 113 away from the housing 110. This connection method not only ensures the airtightness of the water outlet pipe and the connecting flange 113 after connection, improves the water leakage prevention performance of the connection, but also facilitates the disassembly and assembly of the catheter cleaning device 100 during subsequent maintenance. In one embodiment, a fastening ring is provided on the side of the connecting flange 113 close to the second groove 113a and the outer side of the water outlet pipe of the ultrasonic cleaning machine to reinforce the structure of the connection, thereby improving the reliability of the connecting flange 113.

[0048] In the embodiments of the present invention, please refer to Figure 1 and Figure 6 A first connecting hole 120b is formed through the outer edge of the cover body 120, and a second connecting hole 110e communicating with the first connecting hole 120b is formed on the side of the shell 110 close to the cover body 120. A fixing member (not shown in the figure) passes through the first connecting hole 120b and the second connecting hole 110e to detachably connect the cover body 120 to the shell 110.

[0049] In this embodiment, the housing 110 is a prism structure as a whole, the bottom is a square with four equal sides and four corners are rounded, the second connection hole 110e is located on the edge of each side of the quadrilateral, and is used for fixing during assembly. It can be understood that the shape of the cover 120 matches the shape of the side of the housing 110 close to the cover 120, and the first connection hole 120b on the cover 120 is connected to the second connection hole 110e on the housing 110. In one embodiment, the first connection hole 120b and the second connection hole 110e are both threaded holes, and the total number of threaded holes on the housing 110 and the cover 120 can be 8, 12, 16, respectively, preferably 8 here. During assembly, the threaded holes of the front plate and the rear shell are aligned, and then the fixing parts (bolts, screws, etc.) are screwed in to connect and fix. The cover 120 is detachably connected to the housing 110 to facilitate subsequent regular cleaning and maintenance of the cleaning channel 110a, thereby avoiding the accumulation of dirt or even clogging of the inner cavity of the catheter 200 during the flushing process.

[0050] In the embodiments of the present invention, please refer to Figure 6The catheter cleaning device 100 further includes a connecting assembly 140 , which includes a bearing member 141 , one end of which is connected to the cover body 120 and communicates with the cleaning hole 120 a , and the other end of which is used to communicate with the catheter 200 .

[0051] In this embodiment, in order to facilitate the installation of the catheter 200, the carrier 141 connects the catheter 200 with the cleaning hole 120a to ensure that the catheter 200 will not be separated from the cover 120 under the flushing of the cleaning liquid during cleaning, thereby improving the stability of the catheter cleaning device 100.

[0052] In one embodiment, when the inner wall of the cleaning hole 120a is provided with an internal thread, one end of the support member 141 is provided with an external thread. Through the cooperation of the external thread and the internal thread, the support member 141 is threadedly connected to the cleaning hole 120a, thereby ensuring the stability of the connection between the inner cavity of the catheter 200 and the cleaning hole 120a.

[0053] In some embodiments, the carrier 141 is a threaded needle port standard part to quickly install the catheter 200. Further, the connection assembly 140 also includes a Luer connector standard part 144, which is threadedly connected to the cleaning hole 120a. Since the Luer connector standard part 144 is adapted to threaded needle port standard parts of any specifications, the Luer connector standard part 144 is used to adapt to catheters 200 of various specifications, thereby improving the versatility of the catheter cleaning device 100.

[0054] In other embodiments, the outer diameter of one end of the supporting member 141 matches the inner diameter of the cleaning hole 120a so as to fix the supporting member 141 in the cleaning hole 120a, and the other end of the supporting member 141 can be designed according to the size of catheters 200 of various specifications to meet the requirements of installing catheters 200 of different specifications, thereby improving the applicability of the catheter cleaning device 100.

[0055] In the embodiments of the present invention, please refer to Figure 6 The carrier 141 includes an inlet section and an outlet section connected to each other, one end of the inlet section is connected to the cleaning hole 120a, and the other end is connected to the outlet section. The end of the outlet section away from the inlet section is used to connect to the catheter 200, and the inner diameter of the inlet section is larger than the inner diameter of the outlet section.

[0056] Furthermore, in order to improve the cleaning effect of the catheter cleaning device 100 on the inner wall of the catheter 200, the supporting member 141 is designed with a variable diameter, and the cleaning liquid enters from the introduction section and is then flushed from the outlet section to the inner cavity of the catheter 200. Since the inner diameter of the introduction section is larger than the inner diameter of the outlet section, the corresponding water pressure increases as the inner diameter decreases under the same water pressure, and thus the flushing effect of the dirt in the inner cavity of the catheter 200 is better.

[0057] In the embodiments of the present invention, please refer to Figure 6The connecting component 140 also includes a silicone sleeve 142, one end of the silicone sleeve 142 is sleeved outside the outlet section, and the other end is used to sleeve outside the catheter 200, and the silicone sleeve 142 is used to prevent the cleaning liquid from flowing out of the outlet section.

[0058] Furthermore, in order to prevent the cleaning liquid from flowing out from the gap between the carrier 141 and the catheter 200, a silicone sleeve 142 is provided outside the carrier 141 and the catheter 200. The addition of the silicone sleeve 142 ensures that the cleaning liquid can smoothly flush the inner wall of the catheter 200, thereby ensuring the cleaning effect of the catheter cleaning device 100.

[0059] In the embodiments of the present invention, please refer to Figure 6 The connecting assembly 140 further includes a blocking member 143, which is detachably connected to the cleaning hole 120a to block the cleaning hole 120a.

[0060] In this embodiment, during the use of the catheter cleaning device 100, there may be a situation where the number of catheters 200 to be cleaned is less than the number of cleaning holes 120a. In order to prevent the cleaning liquid from flowing out of the cleaning holes 120a where no catheters 200 are installed, a blocking member 143 is provided to block the cleaning holes 120a. It is understandable that when the catheter cleaning device 100 is not in use, the blocking member 143 can be used to block all the cleaning holes 120a on the cover body 120 to prevent the external environment from contaminating the cleaning channel 110a.

[0061] In the embodiments of the present invention, please refer to Figure 6 The inner wall of the cleaning hole 120a is provided with an internal thread, and the blocking member 143 is provided with an external thread, which is threadedly connected to the cover body 120 so that the blocking member 143 can be detachably connected to the cleaning hole 120a.

[0062] Furthermore, when the inner wall of the cleaning hole 120 a is provided with external threads, the blocking member 143 is a bolt made of nylon material. This arrangement enables the blocking member 143 to be initially disassembled and assembled, thereby improving the working efficiency of the catheter cleaning device 100 .

[0063] The working principle of the present application is: one end of the catheter 200 to be cleaned is loaded on the cleaning hole 120a of the cover body 120 through the connecting components 140 such as the Luer connector standard part 144, and then the connecting flange 113 is connected to the water outlet pipe port of the ultrasonic cleaning machine; during cleaning, the water flows from the connecting flange 113 into the cleaning flow channel 110a formed by the shell 110 and the cover plate, and then flows out from the cleaning hole 120a through the Luer connector into the inner cavity of the catheter 200 and finally flows out from the other end of the catheter 200, finally realizing the flushing of the dirt in the inner cavity of the catheter 200 that is shaken off by the ultrasonic wave, and achieving a good cleaning effect on the inner wall of the catheter 200.

[0064] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A catheter cleaning device for cleaning a catheter, characterized in that: include: A housing having a cleaning flow channel for the circulation of cleaning liquid and a liquid inlet and a liquid outlet connected to the cleaning flow channel, wherein the cross-sectional area of ​​the cleaning flow channel along a direction perpendicular to the flow direction of the cleaning liquid gradually increases from the liquid inlet toward the liquid outlet; and The cover body is detachably arranged at the liquid outlet and covers the liquid outlet. The cover body is provided with a plurality of cleaning holes connected with the liquid outlet. The cleaning holes are used to connect with the catheter. When the catheter is installed on the cover body, the liquid outlet, the cleaning holes and the catheter are connected in sequence.

2. The catheter cleaning device according to claim 1, characterized in that: The catheter cleaning device also includes a sealing member, a first groove is provided on a side of the shell close to the liquid outlet or a side of the cover close to the shell, the sealing member is partially located in the first groove and abuts against the cover or the shell, and the sealing member is used to prevent the cleaning liquid from flowing out from the cleaning flow channel along the gap between the shell and the cover.

3. The catheter cleaning device according to claim 1, characterized in that: The shell includes a plurality of interconnected connecting plates, the plurality of connecting plates enclose the cleaning flow channel, and the connection between two adjacent connecting plates is arranged in an arc shape.

4. The catheter cleaning device according to claim 1, characterized in that: A connecting flange is provided at the liquid inlet, and the connecting flange is used to connect to an ultrasonic cleaning machine. A second groove is provided on a side of the connecting flange away from the shell, and the second groove is used to connect to a waterproof component.

5. The catheter cleaning device according to claim 1, characterized in that: A first connection hole is formed through the outer edge of the cover body, a second connection hole connected to the first connection hole is formed on a side of the shell close to the cover body, and a fixing member passes through the first connection hole and the second connection hole to detachably connect the cover body to the shell.

6. The catheter cleaning device according to any one of claims 1 to 5, characterized in that: The catheter cleaning device further comprises a connecting assembly, wherein the connecting assembly comprises a bearing member, one end of the bearing member is connected to the cover body and communicated with the cleaning hole, and the other end of the bearing member is used for communicating with the catheter.

7. The catheter cleaning device according to claim 6, characterized in that: The carrier includes an inlet section and an outlet section connected to each other, one end of the inlet section is connected to the cleaning hole, and the other end is connected to the outlet section, and the end of the outlet section away from the inlet section is used to connect to the conduit, and the inner diameter of the inlet section is larger than the inner diameter of the outlet section.

8. The catheter cleaning device according to claim 7, characterized in that: The connection assembly also includes a silicone sleeve, one end of which is sleeved outside the outlet section, and the other end of which is sleeved outside the catheter. The silicone sleeve is used to prevent the cleaning liquid from flowing out of the outlet section.

9. The catheter cleaning device according to claim 6, characterized in that: The connection assembly also includes a blocking piece, which is detachably connected to the cleaning hole to block the cleaning hole.

10. The catheter cleaning device according to claim 9, characterized in that: The inner wall of the cleaning hole is provided with an internal thread, and the blocking member is provided with an external thread, and the external thread is threadably connected to the internal thread, so that the blocking member can be detachably connected to the cleaning hole.

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