A new catheterization device

Abstract

The utility model discloses a novel catheterization device, and the catheterization device is characterized in that a catheter is arranged in a guide pipe, the catheter is in interference fit with the guide pipe; a limiting cavity is arranged on the other side of the pipe body, a limiting ring is arranged in the limiting cavity, one side of the catheter is arranged in the inner side of the limiting ring, one side of the limiting cavity is provided with a non-return element, the other side is provided with a first limiting element matched with the limiting ring, and the non-return element is provided with a matching inclined surface on one side. When the guide pipe is pulled out to one side, the catheter and the limiting ring are moved to the non-return element, the catheter is deformed and clamped under the action of the inclined surface, after clamping, the catheter moves relatively with the guide pipe, and the catheter will not continue to move to one side; when the guide pipe is pushed to the other side, the catheter restores the original state and moves relatively with the limiting ring after the limiting ring is separated from the inclined surface, the catheter is pushed out under the driving of the guide pipe, one-way movement of the guide pipe is realized, and the catheter is conveniently pushed out and inserted into the urethra.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a novel urinary catheterization device. Background Technology

[0002] A urinary catheter is a tube inserted into the bladder through the urethra to drain urine. The drained urine is usually temporarily stored in a specific catheter bag. It is a urine collection tool for patients with urinary incontinence, paraplegia, long-term bed rest, and other conditions that cause difficulty urinating. Patients typically require regular catheterization, and currently, catheterization procedures are performed in designated locations.

[0003] The outer side of the urinary catheter is usually slidably positioned within the external catheter to maintain its hygiene. During use, the catheter is pushed out of the external catheter; due to its elasticity, it will retract back into the external catheter. Therefore, it is necessary to manually hold both the external catheter and the catheter to maintain the optimal operating length. Furthermore, existing urinary catheters are visually noticeable, and their presentation and exposure may involve patient privacy, making it difficult for patients to bring them to public places and use them. Utility Model Content

[0004] In view of the above-mentioned technical problems existing in the prior art, the present invention provides a novel urinary catheterization device that is easy to operate and can protect patient privacy.

[0005] This utility model discloses a novel catheterization device, including a tube body and a guide tube slidably installed on one side of the tube body. A catheter is installed inside the guide tube, and the catheter and the guide tube are press-fitted. A limiting cavity is provided on the other side of the tube body, and a limiting ring is provided in the limiting cavity. One side of the catheter is installed inside the limiting ring. A check valve is provided on one side of the limiting cavity, and a first limiting member that cooperates with the limiting ring is provided on the other side. A slope that cooperates with the limiting ring is provided on one side of the check valve.

[0006] Preferably, the inner side of the limiting ring is provided with teeth;

[0007] The first sliding resistance between the catheter and the guide tube is greater than the second sliding resistance between the limiting ring and the catheter in the vertical state, and less than the third sliding resistance between the limiting ring and the catheter in the inclined state.

[0008] Preferably, a limiting mechanism is provided on one side of the guide tube. The limiting mechanism includes multiple elastic grooves disposed at the inner end of the guide tube, and a third limiting member is disposed between two adjacent elastic grooves. The inner side of the third limiting member is provided with internal teeth that cooperate with the catheter.

[0009] Preferably, the third limiting member has external teeth on its outer side.

[0010] The inner side of the tube is provided with a second limiting member that cooperates with the external teeth.

[0011] Preferably, the catheter tip at one end of the catheter is provided with a limiting protrusion that cooperates with the third limiting member.

[0012] Preferably, a second engaging mechanism is provided between the tube body and the guide tube, a tube cap is provided on the guide side of the tube body, and a first engaging mechanism is provided between the tube cap and the tube body;

[0013] The second engaging mechanism / first engaging mechanism includes a matching slot and an engaging boss.

[0014] Preferably, the outer side of the tube body, the handle at one end of the guide tube, and the tube cap are respectively provided with a first anti-slip groove, a second anti-slip texture, and a third anti-slip texture.

[0015] Preferably, the inner side of the handle at one end of the guide tube is provided with a joint that mates with the guide head of the external catheter; the catheterization device has a pen-shaped structure.

[0016] Preferably, the anti-reverse component is circumferentially disposed on the inner sidewall of the limiting cavity; or,

[0017] Multiple check valves are circumferentially spaced on the inner wall of the limiting cavity, and the end faces of the multiple check valves form an inclined surface.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: When the guide tube is pulled out to one side, it drives the urinary catheter and the limiting ring to move towards the protrusion. Under the action of the inclined surface, the urinary catheter deforms and is locked. After being locked, the urinary catheter and the guide tube move relative to each other, and the urinary catheter will not continue to move to one side. When the guide tube is pushed to the other side, after the limiting ring is disengaged from the inclined surface, the urinary catheter returns to its original shape and moves relative to the limiting ring. Driven by the guide tube, the urinary catheter is pushed out, realizing the unidirectional movement of the guide tube. It is convenient to push out the urinary catheter and insert the urinary catheter into the urethra. The urinary catheter is hidden by the tube body, which plays a role in protecting the patient's privacy. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the novel urinary catheterization device of this utility model;

[0020] Figure 2 This is a diagram illustrating the installation of a urinary catheter;

[0021] Figure 3 This is a schematic diagram of the guide tube structure;

[0022] Figure 4 This is a schematic diagram of the limiting ring structure;

[0023] Figure 5 This is a schematic diagram of the installation of the check valve.

[0024] Figure 6 This is a schematic diagram of the limit mechanism.

[0025] The diagram is labeled: 1. New type of catheterization device; 11. Guide side; 12. Operating side.

[0026] 2. Pipe body; 21. First anti-slip groove; 23. First limiting component; 25. Limiting ring; 26. Check valve; 261. Inclined surface; 27. Second limiting component; 28. Limiting cavity.

[0027] 3. Guide tube; 31. Second anti-slip texture; 35. Limiting mechanism; 351. External tooth; 352. Internal locking tooth; 353. Elastic groove; 355. Third limiting element; 37. Second engaging mechanism; 38. Handle; 39. Joint.

[0028] 5. Cap, 51. Third anti-slip texture, 52. First locking mechanism, 6. Catheter, 61. Catheter tip, 62. Limiting protrusion. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] The present invention will now be described in further detail with reference to the accompanying drawings:

[0031] This utility model provides a novel urinary catheterization device, such as... Figures 1-6 As shown, the device includes a tube body 2 and a guide tube 3 slidably installed on one side (operation side 12) of the tube body 2. A urinary catheter 6 is installed inside the guide tube 3, and the urinary catheter 6 is press-fitted with the guide tube 3. A limiting cavity 28 is provided on the other side (guide side 11) of the tube body 2, and a limiting ring 25 is provided inside the limiting cavity 28. One side of the urinary catheter 6 is installed inside the limiting ring 25. A check valve 26 is provided on one side of the limiting cavity 28, and a first limiting member 23 that cooperates with the limiting ring 25 is provided on the other side. A slope 261 that cooperates with the limiting ring 25 is provided on one side of the check valve 26.

[0032] When the guide tube 3 is pulled to one side, it moves the urinary catheter 6 and the limiting ring 25 toward the check valve 26. Under the action of the inclined surface 261, the urinary catheter deforms, thereby locking the urinary catheter 6. After locking, the urinary catheter moves relative to the guide tube 3, and the urinary catheter will not continue to move to one side. When the guide tube 3 is pushed to the other side, after the limiting ring 25 disengages from the inclined surface, the urinary catheter returns to its original shape and moves relative to the limiting ring 25. Driven by the guide tube 3, the urinary catheter is pushed out. Overall, the guide tube 6 achieves unidirectional movement, and the guide tube 6 only moves freely within a small range within the depth range of the limiting cavity 28. This facilitates the pushing out of the urinary catheter and the insertion of the urinary catheter into the urethra. The urinary catheter is hidden by the tube body, which plays a role in protecting the patient's privacy.

[0033] More specifically, the first sliding resistance between the catheter 6 and the guide tube 3 is greater than the second sliding resistance between the limiting ring 25 and the catheter 6 in the vertical state, and less than the third sliding resistance between the limiting ring 25 and the catheter 6 in the inclined state. The inner side of the limiting ring 25 may be provided with teeth or other components to increase friction, thereby increasing the catheter holding force when the limiting ring 25 is inclined.

[0034] like Figure 2 and Figure 6 A limiting mechanism 35 is provided on one side of the guide tube 3. The limiting mechanism 35 includes a plurality of elastic grooves 353 disposed at the inner end of the guide tube 3. A third limiting member 355 is disposed between two adjacent elastic grooves 353. The inner side of the third limiting member 355 is provided with internal teeth 352 that cooperate with the catheter 6. The outer side of the third limiting member 355 is provided with external teeth 351, such as... Figure 3 The inner side of the tube body 2 is provided with a second limiting member 27 that cooperates with the external teeth 351. The inner side of the handle 38 at one end of the guide tube 3 is provided with a joint 39 that cooperates with the guide head of the external catheter of the urinary catheter, for installing and fixing the external catheter of the urinary catheter (not shown in the figure).

[0035] like Figure 2 The catheter head 61 at one end of the catheter 6 is provided with a limiting boss 62 that cooperates with the third limiting member 355, which can prevent the catheter from detaching from the guide tube 3 and its limiting mechanism.

[0036] like Figure 3 A second engaging mechanism 37 is provided between the tube body 2 and the guide tube 3. A tube cap 5 is provided on the guide side of the tube body 2, such as... Figure 2 A first engaging mechanism 52 is provided between the cap 5 and the body 2; the second engaging mechanism 37 / first engaging mechanism 52 includes a matching groove and an engaging boss. The engaging mechanism is prior art and will not be described in detail in this utility model.

[0037] like Figure 1The handle 38 at one end of the tube body 2, the guide tube 3, and the outer side of the tube cap 5 are respectively provided with a first anti-slip groove 21, a second anti-slip texture 31, and a third anti-slip texture 51.

[0038] The anti-reverse component 26 is circumferentially disposed on the inner wall of the limiting cavity 28; or, as... Figure 5 Multiple anti-reverse components 26 are circumferentially spaced on the inner wall of the limiting cavity 28, and an inclined surface 261 is formed between the end faces of the multiple anti-reverse components 26. Figure 5 Part of the tube was removed.

[0039] The specific method of using the urinary catheterization device of this utility model includes the following steps:

[0040] Step S1: Pull the guide tube 3 outward from the operating side 12 of the tube body 2. The guide tube 3 drives the catheter 6 and the limiting ring 25 to move towards the operating side 12. Under the action of the inclined surface 261 of the check valve 26, the limiting ring 25 changes the angle between the catheter 6 and the limiting ring 25 and deforms, thus locking the catheter 6.

[0041] Step S2: Continue to pull the guide tube 3, and the guide tube 3 and the catheter 6 slide relative to each other.

[0042] Step S3: Push the guide tube in the reverse direction, that is, push the guide tube 3 towards the guide side 11, causing the catheter 6 and the limiting ring 25 to move towards the first limiting member 23. Under the limitation of the first limiting member 23, the limiting ring 25 slides relative to the catheter 6, pushing the catheter towards the guide side. Figure 4 The first limiting component 23 can prevent the limiting ring 25 from falling off.

[0043] Step S4: If the length of the catheter exposed on the guide side is less than the expected value, repeat steps S1-S3 until the length of the catheter exposed on the guide side reaches the expected value, then proceed to step S6.

[0044] Step S5: If the length of the catheter exposed on the guide side reaches the expected value, proceed to step S6.

[0045] Step S6: Insert the catheter tip of the catheter into the urethra. The catheter is pushed towards the operating side. After the limiting ring 25 moves towards the operating side 12, the catheter 6 is deformed under the action of the inclined plane 261 and the catheter is locked.

[0046] During catheterization, the patient's urine flows along the catheter into the catheter bag (not shown in the figure).

[0047] Step S7: After catheterization is completed, remove and discard the catheterization device.

[0048] This invention relates to a disposable catheterization device that maintains hygiene during catheterization. It allows for unidirectional pushing and locking of the catheter, facilitating catheter management and ensuring optimal operating length. It also prevents catheter rebound, improving the user experience. The device can be taken to public places without compromising patient or user privacy. It addresses the concerns of patients traveling to public places and has significant market value.

[0049] The catheterization device of this utility model has an overall pen-shaped structure, which is aesthetically pleasing, easy to operate, and not easily slipped out of the hand or dropped. It can be packaged in a disposable bag, with the catheter bag pre-installed on one end of the guide tube on the operating side; alternatively, a detachable structure can be used, where the catheter tube or external catheter of the catheter bag is installed into the joint of the guide tube during use. The structures of the catheter bag and catheter are existing technologies and will not be described in detail here.

[0050] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A urinary catheterization device, characterized in that, Includes a tube body (2) and a guide tube (3) slidably mounted on one side of the tube body (2). A urinary catheter (6) is installed inside the guide tube (3), and the urinary catheter (6) is press-fitted with the guide tube (3); A limiting cavity (28) is provided on the other side of the tube body (2), and a limiting ring (25) is provided inside the limiting cavity (28). One side of the catheter (6) is installed inside the limiting ring (25). The limiting cavity (28) is provided with a backstop (26) on one side and a first limiting member (23) that cooperates with the limiting ring (25) on the other side. The backstop (26) is provided with an inclined surface (261) that cooperates with the limiting ring (25) on one side.

2. The catheterization device according to claim 1, characterized in that, The inner side of the limiting ring (25) is provided with teeth; The first sliding resistance between the catheter (6) and the guide tube (3) is greater than the second sliding resistance between the limiting ring (25) and the catheter (6) in the vertical state, and less than the third sliding resistance between the limiting ring (25) and the catheter (6) in the inclined state.

3. The urinary catheterization device according to claim 1, characterized in that, A limiting mechanism (35) is provided on one side of the guide tube (3). The limiting mechanism (35) includes a plurality of elastic grooves (353) provided at the inner end of the guide tube (3). A third limiting member (355) is provided between two adjacent elastic grooves (353). The inner side of the third limiting member (355) is provided with internal teeth (352) that cooperate with the catheter (6).

4. The urinary catheterization device according to claim 3, characterized in that, The third limiting member (355) is provided with external teeth (351) on its outer side. The inner side of the tube (2) is provided with a second limiting member (27) that cooperates with the external teeth (351).

5. The catheterization device according to claim 3, characterized in that, The catheter head (61) at one end of the catheter (6) is provided with a limiting boss (62) that cooperates with the third limiting member (355).

6. The catheterization device according to claim 1, characterized in that, A second engaging mechanism (37) is provided between the tube body (2) and the guide tube (3), a tube cap (5) is provided on the guide side of the tube body (2), and a first engaging mechanism (52) is provided between the tube cap (5) and the tube body (2); The second engaging mechanism (37) / first engaging mechanism (52) includes a matching slot and an engaging boss.

7. The catheterization device according to claim 6, characterized in that, The handle (38) at one end of the tube body (2), the guide tube (3), and the outer side of the tube cap (5) are respectively provided with a first anti-slip groove (21), a second anti-slip texture (31), and a third anti-slip texture (51).

8. The catheterization device according to claim 1, characterized in that, The inner side of the handle (38) at one end of the guide tube (3) is provided with a joint (39) that matches the guide head of the external catheter of the urinary catheter; The catheterization device has a pen-shaped structure.

9. The catheterization device according to claim 1, characterized in that, The anti-reverse component (26) is circumferentially disposed on the inner wall of the limiting cavity (28); or, Multiple anti-reverse elements (26) are circumferentially spaced on the inner wall of the limiting cavity (28), and an inclined surface (261) is formed between the end faces of the multiple anti-reverse elements (26).

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