A type of veterinary catheter

Abstract

This utility model discloses a veterinary urinary catheter, relating to the field of pet medical devices. It includes a catheter base, with a connecting assembly at the end of the catheter base. A silicone fixing disc is mounted on the connecting assembly. The silicone fixing disc includes a sleeve portion and a fixing portion, with communicating cavities inside the sleeve portion and the fixing portion. The sleeve portion is fitted onto the connecting assembly, enclosing the connecting assembly. The connecting assembly connects to and restricts the silicone fixing disc, and the fixing portion secures the catheter base to the animal's fur. This utility model significantly improves animal comfort by using a silicone fixing disc; and by enclosing the connecting assembly within the cavity of the silicone fixing disc, it reduces friction between the connecting assembly and the animal's urethral opening.

Description

Technical Field

[0001] This utility model relates to the field of pet medical devices, specifically to a veterinary urinary catheter. Background Technology

[0002] When a pet undergoes bladder and / or urethral surgery, a urinary catheter is used during the surgical and post-operative recovery phases to assist the pet in urinating. The catheter is then connected to a drainage bag to collect the urine.

[0003] Pets have narrow urinary tracts, so urinary catheters are designed to be quite thin; urinary catheters are not easy to insert into the urinary tract.

[0004] When a veterinarian inserts a urinary catheter into a pet, a metal guide wire is used. The guide wire is first inserted into the catheter, and then the catheter is inserted all the way to the bladder.

[0005] Prior art, application number 202420549147.5, discloses a veterinary catheter, including a catheter assembly and a guidewire assembly. The catheter assembly includes a catheter and a catheter seat. The catheter seat also includes a fixing disc. The fixing disc includes a sleeve portion and a suture portion. The fixing disc is fitted onto the fixing portion. The conical portion and conical surface of the fixing disc cooperate. The limiting portion and limiting protrusion cooperate. The fixing disc can be attached to the fixing portion to prevent it from falling off. The suture portion is used to suture the catheter seat to the animal's skin, fixing it to the animal's body.

[0006] However, the fixing plate of the aforementioned veterinary catheter is made of hard plastic and sewn onto the animal's fur. The hard material results in low animal comfort. The outward-protruding fixing part can abrade the animal's urethral opening, easily leading to urethral inflammation. In addition, the method of fixing the catheter by directly inserting it into the fixing part through hole can easily lead to difficulty in urine drainage after the catheter is bent. Utility Model Content

[0007] The purpose of this invention is to provide a veterinary catheter that improves the problems of low comfort of existing fixation plates and wear and tear on the animal's urethral opening by setting a silicone fixing plate and optimizing the structure of the fixing part.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A veterinary catheter includes a catheter seat, a connecting component at the end of the catheter seat, and a silicone retaining plate on the connecting component. The connecting component is used to connect to and restrict the silicone retaining plate.

[0010] The silicone fixing plate includes a sleeve portion and a fixing portion, and the sleeve portion and the fixing portion have a communicating cavity inside. The sleeve portion wraps around the connecting component, and the inner wall of the cavity of the sleeve portion fits against the outer wall of the connecting component. The fixing portion is used to fix the catheter seat to the animal fur.

[0011] This invention replaces the existing rigid fixing disc with a silicone fixing disc, sewn onto the animal's fur to secure the entire catheter. Silicone is inherently soft, elastic, and biocompatible; compared to rigid materials, it better conforms to the skin's contours when sewn onto animal fur, reducing local pressure and foreign body sensation, significantly minimizing animal discomfort and stress. The protruding fixing part in the existing technology is replaced with a connecting component. A communicating cavity is created inside the silicone fixing disc, and the connecting component is enclosed within this cavity. The connecting component connects to and confines the silicone fixing disc to the end of the catheter seat, preventing axial movement and rotation of the silicone fixing disc relative to the catheter seat end. Completely enclosing the connecting component within the sleeve eliminates the chance of direct contact between the protruding part of the connecting component and the urethral opening, avoiding urethral inflammation caused by friction and improving catheterization safety.

[0012] The silicone fixing disc of this invention has an elastic structure, which is sleeved on the outside of the connecting component for easy disassembly and simple structure, effectively improving the comfort of animals using urinary catheters. This invention combines the softness of silicone with a wrap-around structure, working synergistically to solve the problems of comfort and avoiding friction damage.

[0013] Furthermore, the connecting assembly includes a connecting segment and an annular baffle, the annular baffle being disposed at the end of the connecting segment away from the conduit seat.

[0014] The connecting section and the annular baffle form a "T-shaped" structure, which, in conjunction with the enclosed cavity of the silicone fixing disc, creates a mechanical limiting structure, ensuring reliable fixation, simplifying operation, and improving animal safety. The annular baffle snaps into the limiting part of the silicone disc, resisting pulling forces during animal movement. The baffle is completely enclosed within the silicone, preventing hard components from contacting the urethral opening. The silicone fixing disc can be directly fitted onto the connecting section, with automatic limiting by the annular baffle, reducing assembly difficulty.

[0015] Furthermore, the internal cavity of the sleeve includes a connecting portion, which is sleeved outside the connecting section and is interference-fitted with the connecting section.

[0016] The silicone elasticity achieves an interference fit with the connecting section, replacing traditional adhesive or bolt fixation. This avoids the risk of chemical adhesives irritating animal skin. The silicone elasticity absorbs vibrations during animal activity, reducing the probability of catheter displacement and ensuring the stability of the connection between the connecting part and the connecting section. Combined with an annular baffle, a dual fixation of radial interference and axial restraint is formed, further ensuring the stability of the connection between the silicone fixing plate and the catheter seat end.

[0017] Furthermore, the diameter of the connecting segment is smaller than the diameter of the end of the catheter seat.

[0018] The diameter of the connecting section is smaller than the diameter of the end of the catheter seat. After the connecting part is sleeved on the connecting section, the connecting part abuts against the end of the catheter seat, restricting the sleeve part between the end of the catheter seat and the annular baffle, ensuring that the silicone fixing plate is stably connected to the end of the catheter seat.

[0019] Furthermore, the internal cavity of the sleeve portion also includes a limiting portion, and the annular baffle is disposed within the limiting portion, with the side of the annular baffle near the connecting section abutting against the limiting portion.

[0020] The shape of the limiting part is adapted to the shape of the annular baffle to ensure the stability of the connection between the annular baffle and the silicone fixing plate.

[0021] A limiting part is set inside the silicone cavity to accommodate the annular baffle, achieving precise axial locking and preventing the silicone disc from moving forward (dislodging from the catheter seat) or backward (compressing the urethral opening). Furthermore, the silicone of the limiting part is not prone to creep, ensuring effective fixation during use.

[0022] Furthermore, an annular boss is provided on the side of the annular baffle away from the connecting section, and an arc surface is provided at the end of the annular boss away from the annular baffle.

[0023] Existing catheters often have right-angle bends at the connection point, reducing the urine flow cross-sectional area by more than 50%, which can easily lead to blockage and reflux infection. The annular protrusion has a rounded surface at the end away from the annular baffle, and the central channel of the annular protrusion forms a natural drainage cavity. This central channel provides a buffer bend area for the catheter, avoiding right-angle bends. After the catheter exits, the bend angle is greater than 120°, and a chamfered clearance is formed at the end of the catheter seat to prevent urine from being unable to drain properly after the catheter bends at the connection point. The rounded surface guides the urine flow, reduces turbulence and eddies, and lowers the probability of bacterial retention.

[0024] The catheter exit path is enclosed by the conical inner lumen of the annular boss. The rounded corners of the inner wall of the boss further optimize the flow of urine and reduce fluid kinetic energy loss.

[0025] Furthermore, the annular boss is disposed within the internal cavity of the silicone fixing plate.

[0026] The annular boss is completely embedded in the silicone cavity, making silicone the only material in contact with the animal's body surface, thus eliminating hard friction.

[0027] The annular protrusion is located inside the cavity of the silicone fixing plate. When the silicone fixing plate is fixed to the animal's fur, the catheter forms a chamfered clearance at the annular protrusion, reducing friction with the animal's urethral opening.

[0028] Furthermore, the connecting section has an installation through hole along the axial direction, and the installation through hole communicates with the interior of the guide tube seat.

[0029] Furthermore, a conduit is installed on the mounting through hole.

[0030] A mounting through hole is provided along the axis of the connecting section. The mounting through hole communicates with and is coaxially arranged with the inner ring of the annular baffle. The diameter of the inner ring of the annular baffle is the same as that of the mounting through hole. The mounting through hole communicates with the interior of the guide tube seat. The central axes of the guide tube, the mounting through hole, and the guide tube seat coincide. The distal end of the guide tube passes through the connecting section and the inner ring of the annular baffle in sequence.

[0031] Compared with the prior art, the beneficial effects of this utility model are:

[0032] This invention significantly improves animal comfort by replacing the existing rigid fixing disc with a silicone fixing disc. A connecting component is provided at the end of the catheter seat, and the connecting component is wrapped inside the cavity of the silicone fixing disc. This ensures that the silicone fixing disc is connected and fixed to the end of the catheter seat, while also ensuring that the connecting component does not rub against the animal's urethral opening, thus avoiding urethral inflammation caused by the use of a urinary catheter. Attached Figure Description

[0033] Figure 1 This is a partial cross-sectional view of the present invention;

[0034] Figure 2 This is a schematic diagram of the silicone fixing disc structure of this utility model;

[0035] Figure 3 This is a schematic diagram of the connection component of this utility model;

[0036] Figure descriptions: 1-Cauliflower base, 2-Sleeve part, 3-Fixing part, 4-Connecting section, 5-Annular baffle, 6-Annular boss, 7-Cauliflower, 8-Connecting part, 9-Limiting part. Detailed Implementation

[0037] Example 1

[0038] like Figures 1-3As shown, a veterinary catheter includes a catheter seat 1, with a connecting assembly at the end of the catheter seat 1, and a silicone fixing plate on the connecting assembly; the connecting assembly is used to connect to and restrict the silicone fixing plate; wherein, the silicone fixing plate includes a sleeve portion 2 and a fixing portion 3, the sleeve portion 2 and the fixing portion 3 have communicating cavities inside, the sleeve portion 2 wraps around the connecting assembly, the inner wall of the cavity of the sleeve portion 2 fits against the outer wall of the connecting assembly, and the fixing portion 3 is used to fix the catheter seat 1 to the animal fur.

[0039] The fixing part 3 has a ring structure. The sleeve part 2 and the fixing part 3 are fixedly connected. The inner ring of the fixing part 3 is connected to the internal cavity of the sleeve part 2.

[0040] A connecting component is fixed at the end of the catheter seat 1. A silicone fixing plate is fitted onto the connecting component. The cavity inside the sleeve part 2 of the silicone fixing plate is used to wrap the connecting component, so as to prevent the connecting component from protruding outside the silicone fixing plate when using the catheter and rubbing against the animal's urethral opening, which could lead to urethral inflammation.

[0041] During use, the fixing part 3 of the silicone fixing plate is sewn together with the animal's fur to form a stable connection, preventing the catheter from shifting due to the animal's movement during use. The silicone material is relatively soft and fits the connection point well with the animal, greatly improving the animal's comfort when using the catheter. The connecting component is located inside the cavity of the silicone fixing plate and will not come into contact with the animal's urethral opening, avoiding friction.

[0042] This invention significantly improves animal comfort by replacing the existing rigid fixing disc with a silicone fixing disc. It also replaces the protruding fixing part 3 in the existing technology with a connecting component, and encloses the connecting component in the cavity inside the silicone fixing disc. This ensures that while the silicone fixing disc is connected and fixed to the end of the catheter seat 1, the connecting component will not protrude and rub against the animal's urethral opening, thus avoiding urethral inflammation caused by the use of a urinary catheter.

[0043] Example 2

[0044] like Figures 1-3 As shown, based on Embodiment 1, the connecting assembly includes a connecting segment 4 and an annular baffle 5, the annular baffle 5 being disposed at the end of the connecting segment 4 away from the catheter seat 1. The internal cavity of the sleeve portion 2 includes a connecting portion 8, which is sleeved outside the connecting segment 4, and the connecting portion 8 is interference-fitted with the connecting segment 4. The internal cavity of the sleeve portion 2 also includes a limiting portion 9, the annular baffle 5 being disposed within the limiting portion 9, and the side of the annular baffle 5 near the connecting segment 4 abutting against the limiting portion 9. The diameter of the connecting segment 4 is smaller than the diameter of the end of the catheter seat 1.

[0045] A connecting section 4 and an annular baffle 5 are sequentially arranged at the end of the catheter seat 1, and the end of the catheter seat 1, the connecting section 4, and the annular baffle 5 are fixedly connected. The inner cavity of the sleeve part 2 is provided with a connecting part 8 and a limiting part 9. When the sleeve part 2 wraps around the connecting assembly, the connecting part 8 is sleeved on the connecting section 4, and the two fit tightly together to form an interference fit; the annular baffle 5 abuts against the side of the limiting part 9 near the connecting part 8; the diameter of the connecting section 4 is smaller than the diameter of the end of the catheter seat 1. After the connecting part 8 is sleeved on the connecting section 4, the end of the sleeve part 2 away from the fixed plate abuts against the end of the catheter seat 1, restricting the sleeve part 2 between the end of the catheter seat 1 and the annular baffle 5, forming a stable connection.

[0046] Example 3

[0047] like Figures 1-3 As shown, based on Embodiment 2, an annular boss 6 is provided on the side of the annular baffle 5 away from the connecting section 4, and an arc surface is provided at the end of the annular boss 6 away from the annular baffle 5. The annular boss 6 is disposed within the internal cavity of the silicone fixing plate.

[0048] The annular protrusion 6 is located on the side of the annular baffle 5 away from the connecting section 4. The arc surface of the annular protrusion 6 is close to one end of the fixing part 3 of the silicone fixing plate, and the annular protrusion 6 is located inside the internal cavity of the silicone fixing plate. The catheter 7 passes through the middle of the annular protrusion 6 and enters the chamfered clearance position to ensure that the catheter 7 does not have a right angle bend when it passes through, maintain the laminar flow of urine, reduce the flow resistance of urine, and at the same time avoid the accumulation of sediment caused by right angle bends.

[0049] Example 4

[0050] like Figure 1 and Figure 3 As shown in Embodiment 2, the connecting section 4 has a mounting through hole along the axial direction inside, and the mounting through hole communicates with the inside of the guide tube seat 1. A guide tube 7 is installed on the mounting through hole.

[0051] The connecting segment 4 and the annular baffle 5 are coaxially arranged. A mounting through-hole is provided along the axis of the connecting segment 4, communicating with and coaxially aligning with the inner ring of the annular baffle 5. The diameter of the inner ring of the annular baffle 5 is the same as that of the mounting through-hole. The mounting through-hole communicates with the interior of the catheter seat 1. The catheter 7 is fixed within the mounting through-hole using medical adhesive, ensuring that the catheter 7, the mounting through-hole, and the catheter seat 1 remain coaxial, with their central axes coinciding. The distal end of the catheter 7 passes sequentially through the inner ring of the connecting segment 4 and the annular baffle 5, extending towards the animal urethra.

Claims

1. A veterinary urinary catheter, comprising a catheter seat (1), characterized in that, The end of the catheter seat (1) is provided with a connecting component, and a silicone fixing plate is provided on the connecting component. The connecting component is used to connect and restrict the silicone fixing plate. The silicone fixing plate includes a sleeve part (2) and a fixing part (3). The sleeve part (2) and the fixing part (3) have a communicating cavity inside. The sleeve part (2) wraps the connecting component. The inner wall of the cavity of the sleeve part (2) fits against the outer wall of the connecting component. The fixing part (3) is used to fix the catheter seat (1) on the animal fur.

2. The veterinary catheter according to claim 1, characterized in that, The connecting assembly includes a connecting segment (4) and an annular baffle (5), the annular baffle (5) being disposed at one end of the connecting segment (4) away from the conduit seat (1).

3. A veterinary catheter according to claim 2, characterized in that, The internal cavity of the sleeve part (2) includes a connecting part (8), which is sleeved on the outside of the connecting section (4) and is interference-fitted with the connecting section (4).

4. A veterinary catheter according to claim 3, characterized in that, The internal cavity of the sleeve part (2) also includes a limiting part (9), and the annular baffle (5) is disposed in the limiting part (9). The side of the annular baffle (5) near the connecting section (4) abuts against the limiting part (9).

5. A veterinary catheter according to claim 2, characterized in that, The diameter of the connecting segment (4) is smaller than the diameter of the end of the conduit seat (1).

6. A veterinary catheter according to claim 2, characterized in that, The annular baffle (5) has an annular boss (6) on the side away from the connecting section (4), and the annular boss (6) has an arc surface at the end away from the annular baffle (5).

7. A veterinary catheter according to claim 6, characterized in that, The annular boss (6) is disposed inside the cavity of the silicone fixing plate.

8. A veterinary catheter according to claim 2, characterized in that, The connecting section (4) has an installation through hole along the axial direction inside, and the installation through hole communicates with the inside of the guide tube seat (1).

9. A veterinary catheter according to claim 8, characterized in that, A conduit (7) is installed on the mounting hole.

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