Plugging device of three-cavity catheter

Abstract

The plugging device comprises a sealing piece and a guiding and connecting piece, a medicine inlet connector and a medicine outlet connector are arranged at the two ends of the sealing piece respectively, an existing pagoda connector is adopted as the medicine outlet connector, the medicine outlet connector is plugged into a medicine injection opening of an existing three-cavity catheter, and an existing heparin cap positive pressure connector is adopted as the medicine inlet connector. A medicine injection connector and a drainage connector are arranged at the two ends of the guiding and connecting piece respectively and detachably connected, and the drainage connector is connected with an existing flushing medicine bag. The sealing piece is firmly connected with the medicine injection opening of the three-cavity catheter through the pagoda connector, and liquid in the medicine injection opening is not prone to overflowing. The three-cavity catheter medicine injection opening is sealed through the positive pressure connector, liquid in the medicine injection opening is prevented from overflowing when flushing is not carried out, a urine bag does not need to be connected to the medicine injection opening, operation is easy and convenient, and carrying is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical appliances, in particular to a blocking device for a three-lumen urinary catheter. Background Art

[0002] A triple-lumen balloon catheter is a medical device used for urinary drainage and bladder instillation. The balloon, located at the tip of the catheter, can be inflated by injecting liquid to secure the catheter within the bladder. The other end of the catheter is equipped with a liquid outlet, a water inlet valve, and a medication inlet. The liquid outlet is used to connect to a urine bag, the water inlet valve is used to inflate the balloon, and the medication inlet is used to connect to a flushing bag. The triple-lumen balloon catheter is characterized by its three independent chambers. One chamber is used to drain urine, another is used to inflate the balloon, and the third is used to instill medication or fluids. This design allows the catheter to simultaneously achieve drainage, fixation, and instillation functions, improving treatment effectiveness and patient comfort.

[0003] When not flushing, the patient's body fluid will flow to the liquid outlet and injection port, and the liquid at the liquid outlet will flow into the urine bag. Since the injection port is disconnected from the flushing bag, the liquid at the injection port will overflow and cause contamination. Currently, a sealing cap is usually placed on the liquid outlet, or a urine bag is also connected to the injection port.

[0004] The shortcomings of the above technologies are:

[0005] 1. The connection between the sealing cover and the injection port is not tight, and the sealing cover is easy to fall off accidentally.

[0006] Second, the liquid outlet and the medicine injection port are all connected to the urine bag, which is troublesome to operate and inconvenient to carry.

[0007] Therefore, how to design a blocking device that can close the injection port of a three-lumen urinary catheter when not flushing has become an urgent problem to be solved in the field of medical device technology. Utility Model Content

[0008] The purpose of the utility model is to provide a sealing device for a three-lumen urinary catheter, which firmly connects the sealing member to the injection port of the three-lumen urinary catheter through a pagoda joint, so that the liquid at the injection port is not easy to overflow; the injection port of the three-lumen urinary catheter is sealed by a positive pressure joint to prevent the liquid from overflowing when not flushing, and there is no need to connect a urine bag to the injection port. The utility model is simple to operate and easy to carry.

[0009] In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solutions:

[0010] A sealing device for a three-lumen urinary catheter comprises a sealing member and a connecting member. A medicine inlet connector and a medicine outlet connector are respectively provided at both ends of the sealing member. The medicine outlet connector adopts an existing pagoda connector and is inserted into the medicine injection port of the existing three-lumen urinary catheter. The medicine inlet connector adopts an existing heparin cap positive pressure connector. A medicine injection connector and a drainage connector are respectively provided at both ends of the connecting member. The medicine injection connector and the medicine inlet connector are detachably connected, and the drainage connector is connected to an existing flushing medicine bag.

[0011] Compared with the existing technology, the blocking device of the three-lumen urinary catheter using the above technical solution has the following beneficial effects:

[0012] The utility model adopts the blocking device of the three-lumen urinary catheter, and the sealing member is firmly connected to the injection port of the three-lumen urinary catheter through the pagoda joint, so that the liquid at the injection port is not easy to overflow; the injection port of the three-lumen urinary catheter is sealed by the positive pressure joint to prevent the liquid from overflowing when not flushing, and there is no need to connect a urine bag to the injection port. The operation is simple and convenient to carry.

[0013] Preferably, the injection connector of the lead piece adopts an existing Luer connector, the inner wall of the injection connector is threadedly connected to the outer wall of the drug inlet connector, and the inner tube of the injection connector pushes the core of the drug inlet connector to allow the drug solution to flow through the sealing member into the injection port of the three-lumen urinary catheter. The injection connector adopts an existing Luer connector, which realizes a quick connection between the sealing member and the lead piece and a secure connection.

[0014] Preferably, the drainage connector of the connecting piece adopts an existing hose plug, and the drainage connector is plugged into the tube opening of the existing flushing medicine bag catheter.

[0015] Preferably, the drainage connector of the connecting piece adopts an existing Luer connector, and the inner wall of the drainage connector is threadedly connected to the outer wall of the existing flushing medicine bag catheter connector.

[0016] Preferably, the present invention further includes a locking mechanism comprising a fastener and a clamping jaw. The clamping jaw comprises a claw ring and at least three claw pieces. The claw ring is fixed to the end face of the sealing member, and a drug inlet connector is located at the center of the claw ring. The inner wall of the fastener is threadedly connected to the outer wall of the claw ring. The three claw pieces are fixed to the circular edge of the claw ring and arranged in a circular array to form a clamping jaw. When the fastener is inserted around the outer circumference of the claw piece, the injection port of the three-lumen urinary catheter is clamped within the clamping jaw opening. The locking mechanism can refer to an existing adapter (manufactured by Linyi Hedong District Linghang Hardware Tool Factory) to strengthen the connection between the sealing member and the injection port of the three-lumen urinary catheter, making it more secure.

[0017] Preferably, the fastener is provided with a cover groove with an internal thread matching the external thread of the claw ring, so that the fastener and the sealing member can be detachably connected. The groove surface of the cover groove is provided with a through opening, and the injection port of the three-lumen catheter passes through the through opening and is connected to the medicine outlet connector of the sealing member.

[0018] Preferably, the fastener is sleeved on the outer circumference of the claw ring: when the fastener rotates in the forward direction, the fastener moves toward the claw piece, the claw piece undergoes elastic deformation and presses against the medicine inlet connector, reducing the diameter of the clamping jaw opening; when the fastener rotates in the reverse direction, the fastener moves away from the claw piece, the claw piece returns to its original shape, and the diameter of the clamping jaw opening increases. The fastener is fixed to the claw ring of the sealing member, and the diameter of the clamping jaw opening can be controlled as needed. Medical staff rotate the fastener to increase the diameter of the clamping jaw opening, making it easier to insert the medicine outlet connector into the injection port of the three-lumen urinary catheter; medical staff rotate the fastener to decrease the diameter of the clamping jaw opening, so that the clamping jaw clamp clamps the injection port of the three-lumen urinary catheter, which is easy to operate.

[0019] Preferably, the outer circumference of the sealing member is provided with anti-skid patterns, which are used to increase the friction of the outer circumference of the sealing member and make the grip more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of one end of the blocking device in Example 1.

[0021] Figure 2 This is a structural diagram of the other end of the blocking device in Example 1.

[0022] Figure 3 This is a schematic structural diagram of the sealing device after the connecting member and the sealing member are connected in Example 1.

[0023] Figure 4 This is a schematic diagram of the use of the sealing member in Example 1.

[0024] Figure 5 This is a cross-sectional view of the drug outlet connector in Example 1.

[0025] Figure 6 Schematic diagram of the use of the fastener in Example 2.

[0026] Figure 7 This is a structural schematic diagram of one end of the blocking device in Example 2.

[0027] Figure 8 This is a structural diagram of the other end of the blocking device in Example 2.

[0028] Figure numerals: 1, fastener; 11, cover groove; 12, through port; 2, connecting piece; 21, drainage joint; 22, injection joint; 23, inner tube; 3, sealing piece; 31, medicine inlet joint; 32, medicine outlet joint; 33, core body; 34, clamping claw; 35, claw ring; 36, claw piece; 4, medicine injection port. DETAILED DESCRIPTION

[0029] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0030] Example 1

[0031] like Figures 1 to 5 The sealing device for the three-lumen urinary catheter shown includes a sealing member 3 and a connecting member 2. The sealing member 3 has a drug inlet connector 31 and a drug outlet connector 32 at both ends. The drug outlet connector 32 adopts an existing pagoda connector and is inserted into the existing three-lumen urinary catheter injection port 4. The drug inlet connector 31 adopts an existing heparin cap positive pressure connector. The connecting member 2 has a drug injection connector 22 and a drainage connector 21 at both ends. The drug injection connector 22 is detachably connected to the drug inlet connector 31, and the drainage connector 21 is connected to an existing flushing medicine bag. The pagoda connector firmly connects the sealing member 3 to the three-lumen urinary catheter injection port 4, preventing liquid from overflowing from the injection port 4. The positive pressure connector seals the three-lumen urinary catheter injection port 4 to prevent liquid from overflowing when not flushing. There is no need to connect a urine bag to the injection port 4, making it easy to operate and carry.

[0032] Reference Figure 1 The injection connector 22 of the lead-in component 2 uses a conventional Luer connector. The inner wall of the injection connector 22 is threadedly connected to the outer wall of the drug inlet connector 31. The inner tube 23 of the injection connector 22 pushes open the core 33 of the drug inlet connector 31, allowing the drug solution to flow through the sealing component 3 into the injection port 4 of the three-lumen urinary catheter. The injection connector 22 uses a conventional Luer connector, achieving a quick connection between the sealing component 3 and the lead-in component 2 and a secure connection.

[0033] Reference Figure 2 The drainage connector 21 of the connecting piece 2 adopts an existing hose plug, and the drainage connector 21 is plugged into the tube mouth of the existing flushing medicine bag catheter.

[0034] Reference Figure 4 and Figure 5 The present invention also includes a locking mechanism comprising a fastener 1 and a clamping jaw 34. The clamping jaw 34 comprises a claw ring 35 and at least twelve claw pieces 36. The claw ring 35 is fixed to the end face of the sealing member 3, and the drug inlet connector 31 is located at the center of the claw ring 35. The inner wall of the fastener 1 is threadedly connected to the outer wall of the claw ring 35. The twelve claw pieces 36 are fixed to the circular edge of the claw ring 35 and arranged in a circular array to form a clamping jaw. When the fastener 1 is inserted around the outer periphery of the claw pieces 36, the three-lumen urinary catheter injection port 4 is clamped within the clamping jaw 34. The locking mechanism can be referenced from an existing adapter (manufactured by Linyi Hedong District Linghang Hardware Tool Factory), which strengthens the connection between the sealing member 3 and the three-lumen urinary catheter injection port 4 and provides a more secure connection.

[0035] Reference Figure 1 and Figure 2The fastener 1 is provided with a cover groove 11, which has an internal thread that matches the external thread of the claw ring 35, so that the fastener 1 and the sealing member 3 can be detachably connected. The groove surface of the cover groove 11 is provided with a through opening 12, and the injection port 4 of the three-lumen catheter passes through the through opening 12 and is connected to the medicine outlet connector 32 of the sealing member 3.

[0036] The outer surfaces of the fastener 1, the sealing member 3 and the connector 2 are all provided with anti-slip grooves. The anti-slip grooves are used to increase friction, make the grip more secure, and prevent slipping from the hand, and make it easier to rotate the fastener 1 and the connector 2.

[0037] Example 2

[0038] like Figures 6 to 8 The occluding device for the triple-lumen urinary catheter shown in this embodiment is based on embodiment 1. The difference between this embodiment and embodiment 1 lies in that different fasteners 1 and connectors 2 are used.

[0039] Reference Figure 6 and Figure 7 , the fastener 1 is sleeved on the outer circumference of the claw ring 35: when the fastener 1 rotates forward, the fastener 1 moves toward the claw piece 36, the claw piece 36 undergoes elastic deformation and presses toward the medicine connector 31, reducing the clamping diameter of the clamping jaw 34 (such as Figure 6 b); When the fastener 1 rotates in the opposite direction, the fastener 1 moves away from the claw piece 36, the claw piece 36 returns to its original shape, increasing the jaw opening 34 (eg Figure 6 a). Fastener 1 is fixed to claw ring 35 of sealing member 3 and can adjust the clamping diameter of jaw 34 as needed. Medical personnel rotate fastener 1 to increase the clamping diameter of jaw 34, making it easier to insert medication connector 32 into injection port 4 of a triple-lumen urinary catheter. Medical personnel also rotate fastener 1 to decrease the clamping diameter of jaw 34, allowing jaw 34 clip 36 to securely clamp injection port 4 of the triple-lumen urinary catheter, making operation simple.

[0040] Reference Figure 7 and Figure 8 The drainage connector 21 of the connecting piece 2 adopts an existing Luer connector, and the inner wall of the drainage connector 21 is threadedly connected to the outer wall of the existing flushing medicine bag catheter connector. The drainage connector 21 can be universally compatible with conventional connectors.

[0041] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A blocking device for a triple-lumen urinary catheter, characterized by: The invention comprises a sealing member (3) and a connecting member (2), wherein the two ends of the sealing member (3) are respectively provided with a medicine feeding connector (31) and a medicine discharging connector (32), wherein the medicine discharging connector (32) adopts an existing pagoda connector, and the medicine discharging connector (32) is inserted into the medicine injection port (4) of the existing three-lumen urinary catheter, and the medicine feeding connector (31) adopts an existing heparin cap positive pressure connector, and the two ends of the connecting member (2) are respectively provided with a medicine injection connector (22) and a drainage connector (21), wherein the medicine injection connector (22) is detachably connected to the medicine feeding connector (31), and the drainage connector (21) is connected to an existing flushing medicine bag.

2. The blocking device for a triple-lumen urinary catheter according to claim 1, characterized in that: The medicine injection connector (22) of the connector (2) adopts an existing Luer connector, the inner wall of the medicine injection connector (22) is threadedly connected to the outer wall of the medicine feeding connector (31), and the inner tube (23) of the medicine injection connector (22) pushes open the core body (33) of the medicine feeding connector (31), so that the medicine liquid flows into the medicine injection port (4) of the three-lumen urinary catheter through the sealing member (3).

3. The blocking device for a triple-lumen urinary catheter according to claim 1, characterized in that: The drainage connector (21) of the connecting piece (2) adopts an existing hose plug, and the drainage connector (21) is plugged into the tube opening of the existing flushing medicine bag catheter.

4. The blocking device for a triple-lumen urinary catheter according to claim 1, characterized in that: The drainage connector (21) of the connecting piece (2) adopts an existing Luer connector, and the inner wall of the drainage connector (21) is threadedly connected to the outer wall of the existing flushing medicine bag catheter connector.

5. The blocking device for a triple-lumen urinary catheter according to claim 1, characterized in that: The invention also includes a locking mechanism, the locking mechanism includes a fastener (1) and a clamping claw (34), the clamping claw (34) includes a claw ring (35) and at least three claw pieces (36), the claw ring (35) is fixed to the end face of the sealing member (3), and the medicine feeding connector (31) is arranged at the center of the claw ring (35), the inner wall of the fastener (1) is threadedly connected to the outer wall of the claw ring (35), the three claw pieces (36) are fixed on the circular edge of the claw ring (35) and are arranged in a circumferential array to form a clamping mouth, and when the fastener (1) is sleeved on the outer periphery of the claw piece (36), the three-lumen urinary catheter injection port (4) is clamped in the clamping mouth of the clamping claw (34).

6. The blocking device for a triple-lumen urinary catheter according to claim 5, characterized in that: The fastener (1) is provided with a cover groove (11), and the cover groove (11) has an internal thread that matches the external thread of the claw ring (35), so that the fastener (1) and the sealing member (3) can be detachably connected. The groove surface of the cover groove (11) is provided with a through opening (12), and the three-lumen catheter injection port (4) passes through the through opening (12) and is connected to the medicine outlet connector (32) of the sealing member (3).

7. The blocking device for a triple-lumen urinary catheter according to claim 5, characterized in that: The fastener (1) is sleeved on the outer peripheral surface of the claw ring (35): when the fastener (1) rotates in the forward direction, the fastener (1) moves toward the claw piece (36), the claw piece (36) undergoes elastic deformation and presses toward the medicine-feeding joint (31), reducing the clamping diameter of the clamping jaw (34); when the fastener (1) rotates in the reverse direction, the fastener (1) moves away from the claw piece (36), the claw piece (36) returns to its original state, and the clamping diameter of the clamping jaw (34) increases.

8. The blocking device for a triple-lumen urinary catheter according to claim 1, characterized in that: The outer peripheral surface of the sealing member (3) is provided with anti-slip grooves for increasing friction.

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