Push type catheter introducer

Abstract

The utility model discloses a push type urethral catheter introducer which comprises a protective cylinder, a push component and a urethral catheter, the inside of the protective cylinder is hollow to form a containing cavity, and a first opening and a second opening which are communicated with the containing cavity are formed in the two axial ends of the protective cylinder; the pushing component is arranged in the second opening, the pushing component and the protection cylinder are coaxially arranged, and the pushing component slides in the direction facing or deviating from the containing cavity; the catheter is arranged in the containing cavity and abuts against the pushing component, and the catheter extends out in the direction towards the first opening through the pushing component; a drainage pipeline is arranged on the outer side wall of the protection barrel, a lubricating assembly is arranged on the drainage pipeline, lubricating oil is stored in the lubricating assembly, and the lubricating oil flows out through the drainage pipeline and is attached to the end, away from the pushing component, of the catheter. The included angle possibly generated when the catheter is soft and not easy to fix and enters the urethra is reduced, and the damage to the urethra mucosa is reduced; the lubricating assembly can reduce the friction damage of the catheter to the urethral mucosa and the pain in the operation process.

Description

Technical Field

[0001] The utility model relates to the technical field of medical care appliances, in particular to a push-type urinary catheter inserter. Background Art

[0002] Catheterization: In medicine, a catheter is inserted into the bladder through the urethra to drain urine. Catheterization is divided into two types: indwelling catheterization and intermittent catheterization. In the former, the catheter is always in the patient's body and should be removed as soon as the condition permits, and it must be replaced regularly. In the latter, the catheter is catheterized every 4-6 hours and removed when the bladder is empty.

[0003] Female catheterization refers to an operation in which a catheter is inserted through the urethra into the bladder to drain urine. The purpose is to relieve urinary retention, collect uncontaminated urine specimens, measure residual urine volume, measure bladder capacity and pressure, inject drugs or contrast agents, etc.

[0004] The female urethra is short and straight, generally 3 to 5 cm long, but the surrounding structure is more complex than that of men, making it more prone to urinary tract infections. Inserting a urinary catheter is a basic operation for treating dysuria and observing urine changes, and is widely used in clinical practice. For example, the Chinese utility model patent with application number 202222618513.1 discloses a female urinary catheter pot, and its specification states that the female urinary catheter pot includes a pot body and a urinary catheter to facilitate low-level drainage.

[0005] However, common complications of catheterization include urinary tract infection, the common causes of which are: violation of aseptic technical operation principles during catheterization, repeated and multiple insertions of the catheter; and the catheter is soft and difficult to fix, which further increases the chance of the catheter coming into contact with microorganisms in the surrounding environment during the operation.

[0006] Therefore, the prior art still needs to be improved and developed. Utility Model Content

[0007] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a push-type urinary catheter inserter, aiming to solve the problem that the aseptic technical operation principle is violated during the catheterization process, the urinary catheter is repeatedly and multiple times inserted; and the urinary catheter is soft and not easy to fix, which further increases the chance of the urinary catheter contacting microorganisms in the surrounding environment during operation.

[0008] The technical solution of the utility model is as follows:

[0009] A push-type urinary catheter inserter, wherein the push-type urinary catheter inserter comprises a protective tube, a pushing member and a urinary catheter, wherein the interior of the protective tube is hollow to form an accommodating cavity, and the axial ends of the protective tube are provided with a first opening and a second opening connected to the accommodating cavity; the pushing member is arranged in the second opening and is coaxially arranged with the protective tube, and the pushing member slides in a direction toward or away from the accommodating cavity; the urinary catheter is arranged in the accommodating cavity and abuts against the pushing member, and the urinary catheter extends out in a direction toward the first opening through the pushing member; a drainage pipe is arranged on the outer side wall of the protective tube, and a lubrication assembly is arranged on the drainage pipe, and lubricating oil is stored in the lubrication assembly, and the lubricating oil flows out through the drainage pipe and adheres to the end of the urinary catheter away from the pushing member.

[0010] The push-type urinary catheter inserter, wherein the lubrication assembly includes a liquid reservoir, a switch clamp and a contact ring; the liquid reservoir is arranged on the protective tube, the liquid outlet of the liquid reservoir is connected to the drainage pipe, and the lubricating oil is stored in the liquid reservoir; the switch clamp is clamped on the liquid outlet of the liquid reservoir, and the liquid outlet and the drainage pipe are in a cut-off state; the contact ring is connected to the liquid reservoir through the drainage pipe, the contact ring is sleeved on the end of the catheter away from the pushing member, and the contact ring is used to make the catheter evenly contact the lubricating oil.

[0011] The push-type urinary catheter inserter, wherein the push-type urinary catheter inserter also includes at least one group of symmetrically arranged clamping assemblies, the clamping assembly includes a limit block, a clamping head and an elastic member, the limit block is arranged on the inner wall of the protective tube; the clamping head is arranged in the accommodating cavity and is rotatably connected to the limit block, and the clamping head is used to clamp the catheter; one end of the elastic member is connected to the limit block, and the other end is connected to the clamping head.

[0012] The push-type urinary catheter inserter is provided with a limiting groove on a side of the pushing member facing the urinary catheter, and the limiting groove and the clamping head are used to limit the radial displacement of the urinary catheter.

[0013] The push-type urinary catheter inserter, wherein the pushing member includes a piston head, a connecting rod and a pressing plate arranged in sequence along a direction away from the urinary catheter, and the diameters of the piston head and the pressing plate are both larger than the diameter of the second opening.

[0014] The push-type urinary catheter inserter, wherein the connecting rod includes a plurality of circumferentially arranged guide ridges, and the shape of the second opening is adapted to the longitudinal cross-sectional shape of the connecting rod.

[0015] The push-type urinary catheter inserter is characterized in that positioning grooves are symmetrically arranged on the outer wall of the protective tube along the axis of the protective tube.

[0016] The push-type urinary catheter inserter is provided with a flow guide port on the end of the urinary catheter away from the pushing member, and the flow guide port is provided in plurality.

[0017] The push-type urinary catheter inserter, wherein the length of the urinary catheter is 3-10 cm.

[0018] The push-type urinary catheter inserter, wherein the protective tube is a transparent protective tube, and scale lines are arranged on the outer side wall of the protective tube.

[0019] Compared with the prior art, the embodiment of the utility model has the following advantages:

[0020] The push-type urinary catheter inserter disclosed in the utility model pushes the urinary catheter into the urethra in a pushing manner to isolate the urinary catheter from the external microbial environment, and the design of the protective tube and the pushing member enables the urinary catheter to slide along the accommodating cavity and extend toward the first opening, thereby reducing the angle that may be generated when the urinary catheter is not easily fixed due to its softness when entering the urethra, reducing damage to the urethral mucosa; and there is no need to insert the urinary catheter repeatedly and multiple times, reducing the chance of microbial infection.

[0021] The pre-installed lubrication component can evenly lubricate the insertion end of the catheter, reducing the friction damage of the catheter to the urethral mucosa and the pain during the operation.

[0022] When using the push-type urinary catheter inserter disclosed in the present application, the operator can avoid contacting the front end of the urinary catheter with the adjacent tissue of the external urethral opening when inserting the urinary catheter, thereby reducing the possibility of microbial infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of the push-type urinary catheter inserter in the utility model;

[0025] Figure 2 It is a cross-sectional view of the protective tube in the utility model;

[0026] Figure 3 It is a structural schematic diagram of the pushing component in the utility model;

[0027] Figure 4 It is a structural schematic diagram of the urinary catheter in the utility model.

[0028] Among them, 10, protective tube; 11, positioning groove; 20, pushing member; 21, limiting groove; 22, piston head; 23, connecting rod; 231, guide convex strip; 24, pressing plate; 30, catheter; 31, diversion port; 40, lubrication component; 41, liquid storage bag; 42, switch clamp; 43, contact ring; 50, clamping component; 51, limiting block; 52, clamping head; 53, elastic member. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, 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.

[0030] In the prior art, when inserting a urinary catheter, the operator needs to separate the labia majora with the thumb and index finger of the left hand, and insert the urinary catheter into the urethra with forceps in the right hand. During the operation, the front end of the urinary catheter is likely to contact the adjacent tissues of the urethral opening, such as the labia minora, increasing the chance of microbial infection. When inserting the urinary catheter into the urethral opening with forceps, the urinary catheter is made of flexible material, which easily causes the force line of the urinary catheter to form an angle with the urethra, thereby damaging the urethral mucosa during the catheterization process.

[0031] See also Figure 1 In one embodiment of the utility model application, a push-type urinary catheter inserter is disclosed, wherein the push-type urinary catheter inserter includes a protective tube 10, a pushing member 20 and a urinary catheter 30, wherein the protective tube 10 is hollow inside to form an accommodating cavity, and the axial ends of the protective tube 10 are provided with a first opening and a second opening connected to the accommodating cavity; the pushing member 20 is arranged in the second opening and is coaxially arranged with the protective tube 10, and the pushing member 20 slides in a direction toward or away from the accommodating cavity; the urinary catheter 30 is arranged in the accommodating cavity and abuts against the pushing member 20, and the urinary catheter 30 extends out in a direction toward the first opening through the pushing member 20; a drainage pipe is arranged on the outer wall of the protective tube 10, and a lubricating assembly 40 is arranged on the drainage pipe, and lubricating oil is stored in the lubricating assembly 40, and the lubricating oil flows out through the drainage pipe and adheres to the end of the urinary catheter 30 away from the pushing member 20.

[0032] The push-type urinary catheter inserter disclosed in this embodiment pushes the urinary catheter 30 into the urethra to isolate the urinary catheter 30 from the external microbial environment, and the design of the protective tube 10 and the pushing member 20 enables the urinary catheter 30 to slide along the accommodating cavity and extend toward the first opening, thereby reducing the angle that may be generated when the urinary catheter 30 is not easily fixed into the urethra due to its softness, thereby reducing damage to the urethral mucosa; and there is no need to insert the urinary catheter 30 repeatedly, thereby reducing the chance of microbial infection.

[0033] The pre-installed lubricating component 40 can evenly lubricate the insertion end of the catheter 30 before use, thereby reducing the friction damage of the catheter 30 to the urethral mucosa and the pain during operation.

[0034] When using the push-type urinary catheter inserter disclosed in this embodiment, the operator can avoid the front end of the urinary catheter 30 from contacting the adjacent tissue of the external urethral opening when inserting the urinary catheter 30, thereby reducing the possibility of microbial infection.

[0035] Specifically, intermittent urinary catheters 30 are often used by patients with urinary incontinence or people who are unable to urinate on their own. In our highly mobile culture, being able to leave home freely for a day or more is an important part of life. In order to meet this need, the push-type urinary catheter inserter disclosed in this embodiment is a disposable device to allow patients to perform self-catheterization and avoid urinary tract infections caused by repeated use.

[0036] Specifically, the protective tube 10 disclosed in this embodiment is provided with a sealing ring around the second opening. During catheterization, urine in the bladder flows into the protective tube 10 through the catheter 30. The sealing ring can prevent urine leakage.

[0037] Specifically, the diameter of the urinary catheter 30 disclosed in this embodiment is 2.7-5.3 mm.

[0038] Specifically, the inner wall of the protective tube 10 disclosed in the present embodiment is provided with a snap-in block protruding in the direction of the axis of the protective tube 10, and the snap-in block is used to limit the radial displacement of the catheter 30, so that the catheter 30 is kept on the central axis of the protective tube 10 as much as possible, so as to be extended directly toward the first opening during the subsequent pushing process of the pushing mechanism.

[0039] Specifically, the push-type urinary catheter inserter disclosed in this embodiment also includes a protective cover, the opening of which is arranged toward the first opening and can be covered on the protective tube 10, so that the urinary catheter 30 is sealed in the accommodating cavity to achieve a better sterile environment.

[0040] During the actual catheterization process, the lubricating oil stored in the lubricating component 40 can flow out through the drainage pipe and adhere to the end of the catheter 30 away from the pushing member 20. The thumb and index finger of one hand are used to expose the external opening of the urethra, and the other hand clamps the catheter tube. The thumb pushes the pushing member 20, and the pushing member 20 pushes the catheter 30 out of the first opening into the urethra. During the pushing process, the protective tube 10 can be kept coaxial with the urethra to reduce the angle formed by the catheter 30 and the urethra during the catheterization process. The above process can be operated by others for catheterization or self-catheterization.

[0041] like Figure 1 and Figure 2 As shown, as another implementation of this embodiment, the lubrication assembly 40 is disclosed to include a liquid storage capsule 41, a switch clamp 42 and a contact ring 43. The liquid storage capsule 41 is arranged on the protective tube 10, and the liquid outlet of the liquid storage capsule 41 is connected to the drainage pipe. The liquid storage capsule 41 stores the lubricating oil; the switch clamp 42 is clamped on the liquid outlet of the liquid storage capsule 41, and the liquid outlet and the drainage pipe are in a cut-off state to prevent the lubricating oil from flowing out when it is not needed. The contact ring 43 is connected to the liquid storage capsule 41 through the drainage pipe, and the contact ring 43 is sleeved on the end of the catheter 30 away from the pushing member 20, and the contact ring 43 is used to make the catheter 30 evenly and fully contact the lubricating oil.

[0042] During the actual catheterization process, the operator rotates the protective tube 10, with the side provided with the lubricating component 40 facing upward, and then loosens the switch clamp 42, so that the liquid outlet in the liquid storage bag 41 is connected with the drainage pipe. Under the action of gravity, the lubricating oil in the liquid storage bag 41 can flow out of the liquid outlet and adhere to the contact ring 43 through the drainage pipe. The contact ring 43 is sleeved on the catheter 30 and can absorb the lubricating oil. In the process of advancing the catheter 30, the lubricating oil absorbed by the contact ring 43 can be fully coated on the catheter 30, providing a good lubrication effect during the user's operation and reducing the friction damage of the urethral mucosa.

[0043] Specifically, the contact ring 43 disclosed in this embodiment is a sponge contact ring, which can fully absorb the lubricating oil flowing out of the liquid storage bag 41. When the catheter 30 passes through the sponge contact ring, it will slightly squeeze the inner wall of the sponge contact ring, so that the lubricating oil absorbed on the sponge contact ring is released and evenly coated on the outer wall of the catheter 30.

[0044] Specifically, the disclosed liquid storage bag 41, the drainage pipe and the contact ring 43 are all arranged on the same vertical plane, so that after the switch clamp 42 is loosened, the lubricating oil in the liquid storage bag 41 can flow out along the drainage pipe and be fully absorbed by the contact ring 43. The outflow path of the lubricating oil is more direct, which reduces the flow resistance, improves the outflow efficiency of the lubricating oil in the liquid storage bag 41, and can also ensure that the contact ring 43 fully absorbs the outflowing lubricating oil.

[0045] Specifically, the lubricating oil disclosed in this embodiment is paraffin oil, which has a certain degree of adhesion and can cover the insertion end of the catheter 30 during the catheterization process to form a protective barrier to block the invasion of microorganisms and reduce the risk of infection. Paraffin oil has a long lubrication time and can continuously reduce the friction between the catheter 30 and the urethral mucosa, providing a long-lasting lubrication effect.

[0046] It should be noted that lubricating oil is only exemplified in this embodiment, but the protection scope of the present utility model is not limited to this. Other types of lubricating oil can achieve the technical effects disclosed in this application and should also be within the scope of protection of this application as an equivalent replacement for the concept of the present utility model.

[0047] Specifically, as another implementation of this embodiment, the push-type urinary catheter inserter also includes at least one group of clamping assemblies 50, and the clamping assembly 50 includes a limit block 51, a clamping head 52 and an elastic member 53. The limit block 51 is arranged on the inner wall of the protective tube 10; the clamping head 52 is arranged in the accommodating cavity and is rotatably connected to the limit block 51. The clamping head 52 is used to clamp the catheter 30 so that the catheter 30 is fixed in the protective tube 10, thereby preventing the catheter 30 from shaking in the accommodating cavity before insertion, and also ensuring that the catheter 30 is always located on the axis of the protective tube 10 when inserted.

[0048] Specifically, the limit block 51 disclosed in this embodiment is arranged on the inner wall of the protective tube 10 close to the first opening, which can prevent the pushing member 20 from curling in the protective tube 10 when pushing the catheter 30, and better maintain the forward direction of the catheter 30.

[0049] Specifically, a clamping space for placing the urinary catheter 30 is formed between the clamping heads 52 disclosed in this embodiment, and the clamping heads 52 can be moved closer to each other to reduce the clamping space, or moved away from each other to increase the clamping space. The minimum diameter of the clamping space is greater than the outer diameter of the urinary catheter 30, and the movement of the urinary catheter 30 toward the first opening is not affected even in the clamping state.

[0050] Specifically, one end of the elastic member 53 disclosed in this embodiment is connected to the limit block 51, and the other end is connected to the clamping head 52. When the clamping head 52 is subjected to an external force, the elastic member 53 is stretched, and the clamping head 52 and the limit block 51 are deflected, so that the clamping space becomes larger. When the external force disappears, the elastic member 53 pulls the clamping head 52 closer to the limit block 51, so that the clamping space becomes smaller.

[0051] Specifically, the elastic member 53 disclosed in this embodiment is a telescopic spring, which has a simple structure and can effectively reset the clamping head 52.

[0052] like Figure 1 and Figure 3 As shown, as another implementation of this embodiment, a limiting groove 21 is provided on a side of the pushing member 20 facing the catheter 30, and the limiting groove 21 and the clamping head 52 are used to limit the radial displacement of the catheter 30. The setting of the limiting groove 21 can further accurately determine the axial advancement direction of the catheter 30.

[0053] In actual use, the clamping head 52 is used to clamp one end of the catheter 30, and the limiting groove 21 is used to limit the other end of the catheter 30, so that the two ends of the catheter 30 are stably clamped in the accommodating cavity to prevent radial displacement before the pushing mechanism is pushed.

[0054] Specifically, as another implementation of this embodiment, the pushing member 20 includes a piston head 22, a connecting rod 23 and a pressing plate 24 arranged in sequence along a direction away from the catheter 30, and the connecting rod 23 slides back and forth in the second outlet to improve the safety and reliability of the catheterization process.

[0055] Specifically, the diameters of the piston head 22 and the pressing plate 24 disclosed in this embodiment are both larger than the diameter of the second opening. During the axial displacement of the pushing mechanism, the piston head 22 and the pressing plate 24 will not slide out of the second outlet, thereby ensuring the safety of the use of the pushing mechanism.

[0056] Specifically, the piston head 22 and the pressing plate 24 disclosed in this embodiment are both relatively large in diameter, which can increase the effective area of ​​the propulsion force and improve the efficiency and smoothness of insertion.

[0057] Specifically, as another implementation of this embodiment, the connecting rod 23 includes a plurality of circumferentially arranged guide ridges 231 to provide additional support and guidance. The existence of the guide ridges 231 can guide the direction of the pushing mechanism during the insertion process, reduce the possibility of deviation from the target position, and also ensure the direction of the force applied to the catheter 30, which helps to make the insertion of the catheter 30 smoother and easier.

[0058] Specifically, the shape of the second opening disclosed in this embodiment is adapted to the longitudinal cross-sectional shape of the connecting rod 23 , so that the connection rod 23 and the urinary catheter 30 are more tightly combined, which can improve the stability of the pushing mechanism in pushing the urinary catheter 30 .

[0059] like Figure 1 and Figure 2 As shown in the figure, as another implementation of this embodiment, positioning grooves 11 are symmetrically arranged on the outer wall of the protective tube 10 along the axis of the protective tube 10, providing a clear position for the operator to place fingers to clamp the protective tube 10. The operator can accurately position according to the positioning grooves 11, and it is easier to grasp the clamping force and position, which is convenient for catheterization.

[0060] In actual use, the operator can hold the positioning groove 11 with the thumb and middle finger and place the index finger on the pushing mechanism, or hold the positioning groove 11 with the index finger and middle finger and place the thumb on the pushing mechanism. The operator can choose a suitable way to hold the protective tube 10.

[0061] like Figure 1 and Figure 4 As shown, as another implementation of this embodiment, a guide port 31 is provided on the end of the urinary catheter 30 away from the pushing member 20. The setting of the guide port 31 enables the urinary catheter 30 to effectively discharge urine from the bladder.

[0062] Specifically, the diversion openings 31 disclosed in this embodiment are provided with a plurality of diversion openings 31, and the plurality of diversion openings 31 can increase the number of flow channels for urine, thereby improving the efficiency and speed of drainage. The plurality of diversion openings 31 can disperse the drainage points and prevent urine from accumulating in the urinary catheter 30, especially in the area where the urinary catheter 30 contacts the urethra.

[0063] Specifically, as another implementation of this embodiment, the length of the catheter 30 is 3-10 cm. Since the female urethra is generally 3-5 cm long, after the catheter 30 is inserted into the bladder, part of the catheter 30 can be retained outside the urethra to facilitate subsequent removal.

[0064] Specifically, as another implementation of this embodiment, the protective tube 10 is a transparent protective tube 10 , which allows the operator to observe the discharge of urine in the catheter 30 in real time and observe the properties of urine through the transparent protective tube 10 .

[0065] Specifically, the outer wall of the protective tube 10 disclosed in this embodiment is provided with scale lines, so that the operator can intuitively understand the insertion depth of the urinary catheter 30 .

[0066] In summary, the present application discloses a push-type urinary catheter inserter that pushes the urinary catheter 30 into the urethra to isolate the urinary catheter 30 from the external microbial environment, and the design of the protective tube 10 and the pushing member 20 enables the urinary catheter 30 to slide along the accommodating cavity and extend toward the first opening, thereby reducing the angle that may be generated when the urinary catheter 30 is not easily fixed into the urethra due to its softness, thereby reducing damage to the urethral mucosa; and there is no need to repeatedly insert the urinary catheter 30, thereby reducing the chance of microbial infection.

[0067] The pre-installed lubricating component 40 can evenly lubricate the insertion end of the catheter 30, thereby reducing the friction damage of the catheter 30 to the urethral mucosa and the pain during the operation.

[0068] When using the push-type urinary catheter inserter disclosed in the present application, the operator can avoid the front end of the urinary catheter 30 from contacting the adjacent tissue of the external urethral opening when inserting the urinary catheter 30, thereby reducing the possibility of microbial infection.

[0069] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0070] It should be noted that the present invention takes a push-type urinary catheter inserter as an example to introduce the specific structure and working principle of the present invention, but the application of the present invention is not limited to the push-type urinary catheter inserter, and can also be applied to the production and use of other similar workpieces.

[0071] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A push-type urinary catheter inserter, characterized in that: The push-type urinary catheter inserter comprises: A protective tube, wherein the interior of the protective tube is hollow to form a receiving cavity, and the axial ends of the protective tube are provided with a first opening and a second opening communicating with the receiving cavity; A pushing member is disposed in the second opening and is coaxially disposed with the protective tube, and the pushing member slides in a direction toward or away from the accommodating cavity; a urinary catheter, disposed in the accommodating cavity and abutting against the pushing member, the urinary catheter extending through the pushing member in a direction toward the first opening; A drainage pipe is provided on the outer wall of the protective tube, a lubrication assembly is provided on the drainage pipe, lubrication oil is stored in the lubrication assembly, and the lubrication oil flows out through the drainage pipe and adheres to the end of the catheter away from the pushing member.

2. The push-type urinary catheter inserter according to claim 1, characterized in that: The lubrication assembly comprises: A liquid storage bag, arranged on the protective tube, the liquid outlet of the liquid storage bag is connected with the drainage pipe, and the lubricating oil is stored in the liquid storage bag; A switch clip is clamped on the liquid outlet of the liquid storage bag, and the liquid outlet and the drainage pipe are in a shut-off state; A contact ring is connected to the liquid storage bag through the drainage pipe. The contact ring is sleeved on the end of the catheter away from the pushing member. The contact ring is used to make the catheter contact the lubricating oil evenly.

3. The push-type urinary catheter inserter according to claim 1, characterized in that: The push-type urinary catheter inserter further comprises at least one set of symmetrically arranged clamping assemblies, wherein the clamping assemblies comprise: A limit block, arranged on the inner wall of the protective tube; A clamping head, disposed in the accommodating cavity and rotatably connected to the limiting block, the clamping head being used to clamp the urinary catheter; An elastic member, one end of which is connected to the limit block, and the other end of which is connected to the clamping head.

4. The push-type urinary catheter inserter according to claim 3, characterized in that: A limiting groove is provided on a side of the pushing member facing the urinary catheter, and the limiting groove and the clamping head are used to limit the radial displacement of the urinary catheter.

5. The push-type urinary catheter inserter according to claim 1, characterized in that: The pushing member comprises a piston head, a connecting rod and a pressing plate which are sequentially arranged in a direction away from the urinary catheter, and the diameters of the piston head and the pressing plate are both larger than the diameter of the second opening.

6. The push-type urinary catheter inserter according to claim 5, characterized in that: The connecting rod comprises a plurality of circumferentially arranged guide ridges, and the shape of the second opening is adapted to the longitudinal cross-sectional shape of the connecting rod.

7. The push-type urinary catheter inserter according to claim 1, characterized in that: Positioning grooves are symmetrically arranged on the outer wall of the protective tube along the axis of the protective tube.

8. The push-type urinary catheter inserter according to claim 1, characterized in that: A flow guide port is arranged on the end of the urinary catheter away from the pushing member, and a plurality of the flow guide ports are arranged.

9. The push-type urinary catheter inserter according to claim 1, characterized in that: The length of the urinary catheter is 3-10 cm.

10. The push-type urinary catheter inserter according to claim 1, characterized in that: The protective tube is a transparent protective tube, and scale lines are arranged on the outer side wall of the protective tube.

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