Locking joint for rapid connection and fixation of infusion port

Abstract

The utility model relates to the technical field of infusion port connectors, and discloses an infusion port fast connecting and fixing locking connector which comprises an injection base, the front side of the injection base is communicated with a liquid outlet pipe, an inner groove is formed in the front side of the interior of the liquid outlet pipe, and clamping rings are arranged on the left side and the right side of the interior of the inner groove. Two springs are fixedly connected to the sides, away from each other, of the two clamping rings, one ends of the multiple springs are fixedly connected with the inner side of the inner groove, connecting columns are fixedly connected to the middles of the sides, away from each other, of the two clamping rings, and the ends, away from each other, of the two connecting columns penetrate through a liquid outlet pipe; and the same connecting pipe is arranged on the adjacent sides of the two clamping rings. According to the syringe, the connecting pipe is inserted to push the clamping rings on the two sides to move towards the outer side, the clamping rings move to compress the springs, and when the connecting pipe is inserted in place, the springs push the clamping rings to move, so that the clamping rings are clamped with the clamping grooves to fix the connecting pipe, and the connecting pipe can be conveniently connected with the injection seat.

Description

Technical Field

[0001] This utility model relates to the field of infusion port connector technology, and in particular to a locking connector for quick connection and fixation of infusion ports. Background Technology

[0002] An infusion port, also known as an implantable venous infusion port, is a subcutaneous intravenous infusion device that can be implanted and left in the body for a long time. It mainly consists of an injection port for puncture and a venous catheter system, and can provide intravenous infusion access for patients who need long-term intravenous infusion therapy, chemotherapy and parenteral nutrition support.

[0003] Patients undergoing port-a-cath treatment require frequent infusion procedures. If traditional connection methods are not handled properly, they can lead to pain and extravasation of medication, increasing patient suffering and even causing infection. In such cases, a locking connector that allows for quick connection and fixation of the port-a-cath is needed.

[0004] Currently, commercially available infusion ports mainly consist of an injection port, a puncture diaphragm, and a venous catheter. During use, a non-traumatic needle is inserted into the puncture diaphragm to deliver the injection fluid into the injection port. The catheter then delivers the fluid into the vein. However, in actual use, because the device needs to be surgically placed under the patient's skin, the procedure requires time to connect the venous catheter to the injection port, making quick connection inconvenient and prolonging the patient's surgery time. This increases the workload for staff and fails to meet the user's needs. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a locking connector for quick connection and fixation of infusion ports, aiming to improve the problem that it is inconvenient to connect the catheter to the injection seat when using infusion ports in the prior art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a locking connector for quick connection and fixation of an infusion port, including an injection seat, a discharge pipe connected to the front side of the injection seat, an inner groove formed on the front side of the discharge pipe, retaining rings on both the left and right sides of the inner groove, two springs fixedly connected to the opposite sides of the two retaining rings, one end of each spring fixedly connected to the inner side of the inner groove, a connecting post fixedly connected to the middle of the opposite sides of the two retaining rings, the opposite ends of the two connecting posts penetrating the discharge pipe, a common connecting pipe on adjacent sides of the two retaining rings, a retaining groove formed on the rear side of the outer wall of the connecting pipe, the two retaining rings engaging with the left and right sides of the retaining groove respectively, an infusion pipe connected to the front end of the connecting pipe, and a disassembly mechanism provided on the top of the injection seat for convenient replacement of the diaphragm using the locking connector for quick connection and fixation of the infusion port.

[0007] As a further description of the above technical solution:

[0008] The disassembly mechanism includes an installation ring, which is fixedly connected to the top of the injection seat. A circular ring is provided on the upper side of the installation ring, and a toothed ring is fixedly connected to the lower inner part of the circular ring. Multiple threaded posts are equidistantly rotatably connected to the top of the installation ring. Gears are fixedly connected to the lower outer parts of the multiple threaded posts, and the multiple gears are all meshed with the same toothed ring. Threaded sleeves are threadedly connected to the outer sides of the multiple threaded posts, and the top of the multiple threaded sleeves is fixedly connected to the same retaining ring. A puncture membrane is provided on the adjacent side of the retaining ring and the installation ring.

[0009] As a further description of the above technical solution:

[0010] Both of the two retaining rings have grooves at their opposite ends, and a fixing post is fixedly connected inside each of the two grooves.

[0011] As a further description of the above technical solution:

[0012] The top of the mounting ring is fixedly connected to an annular track, and the bottom of the ring is provided with a sliding groove, the inside of which is slidably connected to the annular track.

[0013] As a further description of the above technical solution:

[0014] The top of the ring has anti-slip grooves, and the inner size of the ring matches the size of the retaining ring.

[0015] As a further description of the above technical solution:

[0016] An observation window is provided on the lower right side of the injection seat, and an anti-slip layer is fixedly connected to the upper part of the outer perimeter of the injection seat.

[0017] As a further description of the above technical solution:

[0018] A sealing ring is fixedly connected to the rear end of the connecting pipe, and the inner dimensions of the outlet pipe match the dimensions of the connecting pipe.

[0019] As a further description of the above technical solution:

[0020] A sealing gasket is fixedly connected to the outside of the outlet tube, and the rear end of the sealing gasket is fixedly connected to the injection seat.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, since the inner side of the retaining ring is designed with a bevel, when the connecting tube is inserted, it will push the retaining rings on both sides to move outward. When the retaining rings move, they will compress the spring. When the connecting tube is inserted into place, the spring will push the retaining rings to move, thereby engaging with the retaining groove and fixing the connecting tube. This makes it easy to connect the connecting tube to the injection seat, reducing the workload of the staff and meeting the needs of the user.

[0023] 2. In this utility model, the circular ring drives the toothed ring to rotate. Since multiple gears mesh with the toothed ring, when the toothed ring rotates, multiple gears will simultaneously drive multiple threaded columns to rotate. The threaded sleeve will then drive the retaining ring to move upward, which makes it easy to remove and replace the puncture membrane. Moreover, only the puncture membrane needs to be replaced, reducing the pain of changing the injection port for the patient. Attached Figure Description

[0024] Figure 1 This is a perspective view of the locking connector for quick connection and fixation of the infusion port proposed in this utility model;

[0025] Figure 2 This is a partial structural cross-sectional view of the locking connector for quick connection and fixation of the infusion port proposed in this utility model;

[0026] Figure 3 This is an exploded view of the connecting pipe structure of the locking connector for quick connection and fixation of the infusion port proposed in this utility model;

[0027] Figure 4 This is a structural exploded view of the disassembly mechanism of the locking joint for quick connection and fixation of the infusion port proposed in this utility model;

[0028] Figure 5 for Figure 4 Enlarged view of point A in the image;

[0029] Figure 6 This is a partial structural exploded view of the locking connector for quick connection and fixation of the infusion port proposed in this utility model.

[0030] Legend:

[0031] 1. Injection seat; 2. Disassembly mechanism; 201. Mounting ring; 202. Circular ring; 203. Gear ring; 204. Threaded post; 205. Gear; 206. Threaded sleeve; 207. Retaining ring; 208. Puncture membrane; 3. Discharge tube; 4. Inner groove; 5. Snap ring; 6. Spring; 7. Connecting post; 8. Connecting tube; 9. Snap groove; 10. Infusion tube; 11. Groove; 12. Fixing post; 13. Circular track; 14. Slide groove; 15. Anti-slip groove; 16. Sealing ring; 17. Observation window; 18. Anti-slip layer; 19. Sealing gasket. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a quick-connect and locking connector for an infusion port, comprising an injection seat 1, an outlet tube 3 connected to the front side of the injection seat 1, an inner groove 4 formed on the front side of the outlet tube 3, and retaining rings 5 ​​on both the left and right sides of the inner groove 4. Two springs 6 are fixedly connected to the opposite sides of the two retaining rings 5, and one end of each spring 6 is fixedly connected to the inner side of the inner groove 4. The springs 6 can push the retaining rings 5 ​​to engage with the retaining grooves 9. A connecting post 7 is fixedly connected to the middle of the opposite sides of the two retaining rings 5, and the opposite ends of the two connecting posts 7 penetrate the outlet tube 3. The same connecting pipe 8 is provided on each adjacent side. A slot 9 is provided on the rear side of the outer wall of the connecting pipe 8. Two retaining rings 5 ​​are respectively engaged with the left and right sides of the slot 9. The slot 9 and the retaining rings 5 ​​are engaged to fix the connecting pipe 8. The front end of the connecting pipe 8 is connected to an infusion tube 10, which can deliver the drug solution into the patient's body. A disassembly mechanism 2 is provided on the top of the injection port 1. The disassembly mechanism 2 is used to facilitate the replacement of the diaphragm by the locking connector for quick connection and fixation of the infusion port. A groove 11 is provided at the far end of each of the two retaining rings 5. A fixing post 12 is fixedly connected inside each of the two grooves 11.

[0034] Specifically, when using this device, if it is necessary to connect the connecting tube 8 to the injection seat 1, first insert the connecting tube 8 into the outlet tube 3. Since the inner side of the retaining ring 5 is designed as a slope, when the connecting tube 8 is inserted, it will push the retaining rings 5 ​​on both sides to move outward. The movement of the retaining rings 5 ​​will compress the spring 6. After the connecting tube 8 is fully inserted, the spring 6 will release its pressure and push the retaining ring 5 to move inward. The retaining ring 5 will then engage with the retaining groove 9, thereby fixing the connecting tube 8. This allows the connecting tube 8 to be easily connected to the injection seat 1. When it is necessary to remove the connecting tube 8, pull the fixing post 12. The fixing post 12 will drive the retaining ring 5 to move through the connecting post 7. This allows the connecting tube 8 to be easily removed, reducing the workload of the staff and meeting the needs of the user.

[0035] Reference Figure 4 , Figure 5 and Figure 6The disassembly mechanism 2 includes a mounting ring 201, which is fixedly connected to the top of the injection seat 1. A circular ring 202 is provided on the upper side of the mounting ring 201. A gear ring 203 is fixedly connected to the lower inner part of the circular ring 202, which can drive the gear ring 203 to rotate. Multiple threaded posts 204 are equidistantly rotatably connected to the top of the mounting ring 201. Gears 205 are fixedly connected to the lower outer part of each of the multiple threaded posts 204. The multiple gears 205 are all meshed with the same gear ring 203. When the gear ring 203 rotates, the gears 205 will drive the gear ring 203 to rotate. The threaded column 204 rotates, and threaded sleeves 206 are threadedly connected to the outer side of multiple threaded columns 204. The top of multiple threaded sleeves 206 is fixedly connected to the same retaining ring 207. The threaded sleeves 206 will drive the retaining ring 207 to move upward. A puncture membrane 208 is provided on the adjacent side of the retaining ring 207 and the mounting ring 201. The top of the mounting ring 201 is fixedly connected to an annular track 13. A groove 14 is opened at the bottom of the ring 202. The inside of the groove 14 is slidably connected to the annular track 13, and the ring 202 can rotate along the annular track 13.

[0036] Specifically, when using this device, if the puncture membrane 208 is damaged due to repeated punctures, the ring 202 is rotated. When the ring 202 starts to rotate, it will drive the gear ring 203 to rotate. Since multiple gears 205 mesh with the gear ring 203, when the gear ring 203 starts to rotate, the gears 205 will also start to rotate synchronously, driving multiple threaded columns 204 to rotate. This causes the threaded sleeve 206 to move the retaining ring 207 upward. At this time, the puncture membrane 208 can be easily removed for necessary replacement. Only the puncture membrane 208 needs to be replaced, reducing the pain for the patient when changing the injection seat 1.

[0037] Reference Figure 1 and Figure 4 The top of the ring 202 is provided with anti-slip grooves 15, which make it easy for the staff to rotate the ring 202. The inner size of the ring 202 matches the size of the retaining ring 207. An observation window 17 is provided on the lower right side of the injection seat 1, which makes it easy for the staff to observe the internal condition of the injection seat 1. Anti-slip layers 18 are fixedly connected to the upper part of the outer perimeter of the injection seat 1.

[0038] Specifically, the anti-slip grooves 15 allow staff to easily rotate the ring 202. The inner size of the ring 202 matches the size of the retaining ring 207, so that the retaining ring 207 can firmly fix the puncture membrane 208. The observation window 17 allows staff to easily observe the internal condition of the injection seat 1, and the anti-slip layer 18 can prevent the injection seat 1 from sliding inside the patient's body.

[0039] Reference Figure 1 and Figure 3A sealing ring 16 is fixedly connected to the rear end of the connecting tube 8. The sealing ring 16 prevents the liquid from entering between the connecting tube 8 and the outlet tube 3. The inner size of the outlet tube 3 matches the size of the connecting tube 8. A sealing gasket 19 is fixedly connected to the outer side of the outlet tube 3. The rear end of the sealing gasket 19 is fixedly connected to the injection seat 1. The use of the sealing gasket 19 can prevent cells and tissue fluid from entering the injection seat 1.

[0040] Specifically, the sealing ring 16 prevents the drug solution from entering between the connecting tube 8 and the outlet tube 3, and the sealing gasket 19 can prevent cells and tissue fluid from entering the injection seat 1.

[0041] Working principle: When using this device, when it is necessary to connect the connecting tube 8 to the injection seat 1, the connecting tube 8 is inserted into the liquid outlet tube 3. Since the inner side of the retaining ring 5 is designed with a bevel, when the connecting tube 8 is inserted, it will push the retaining rings 5 ​​on both sides to move outward. When the retaining rings 5 ​​move, they will compress the spring 6. When the connecting tube 8 is inserted into place, the spring 6 will push the retaining ring 5 to move, thereby engaging with the retaining groove 9 and fixing the connecting tube 8. This allows the connecting tube 8 to be easily connected to the injection seat 1. When it is necessary to remove the connecting tube 8, pull the fixing post 12. The fixing post 12 drives the retaining ring 5 to move through the connecting post 7, so that the connecting tube 8 can be removed.

[0042] Furthermore, when using this device, if the puncture membrane 208 is damaged due to repeated punctures, rotating the ring 202 will cause the gear ring 203 to rotate. Since multiple gears 205 mesh with the gear ring 203, when the gear ring 203 rotates, the multiple gears 205 will simultaneously drive the multiple threaded columns 204 to rotate. At this time, the threaded sleeve 206 will drive the retaining ring 207 to move upward, which makes it easy to remove and replace the puncture membrane 208. Only the puncture membrane 208 needs to be replaced.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking connector for quick connection and fixation of a port, comprising a hub (1), characterized in that: The front side of the injection seat (1) is communicated with a liquid outlet pipe (3), the inner front side of the liquid outlet pipe (3) is provided with an inner groove (4), the left and right sides of the inner groove (4) are both provided with a clamping ring (5), the sides away from each other of the two clamping rings (5) are both fixedly connected with two springs (6), one end of each of the plurality of springs (6) is fixedly connected with the inner side of the inner groove (4), the middle parts of the sides away from each other of the two clamping rings (5) are both fixedly connected with a connecting column (7), the ends away from each other of the two connecting columns (7) both penetrate through the liquid outlet pipe (3), the adjacent sides of the two clamping rings (5) are both provided with a same connecting pipe (8), the rear side of the outer wall of the connecting pipe (8) is provided with a clamping groove (9), the left and right sides of the connecting pipe (8) are respectively clamped with the clamping groove (9), the front end of the connecting pipe (8) is communicated with a transfusion pipe (10), the top of the injection seat (1) is provided with a dismounting mechanism (2), the dismounting mechanism (2) is used for conveniently replacing the septum through the locking connector for quick connection and fixation of the infusion port.

2. The lock joint for quick connection and fixation of infusion port according to claim 1, characterized in that: The dismounting mechanism (2) comprises a mounting ring (201), the mounting ring (201) is fixedly connected to the top of the injection seat (1), the upper side of the mounting ring (201) is provided with a circular ring (202), the inner middle lower part of the circular ring (202) is fixedly connected with a tooth ring (203), the top of the mounting ring (201) is equidistantly rotationally connected with a plurality of threaded columns (204), the outer middle lower parts of the plurality of threaded columns (204) are all fixedly connected with a gear (205), the plurality of gears (205) are all meshingly connected with a same tooth ring (203), the outer sides of the plurality of threaded columns (204) are all threadedly connected with a threaded sleeve (206), the top ends of the plurality of threaded sleeves (206) are all fixedly connected with a same blocking ring (207), the adjacent sides of the blocking ring (207) and the mounting ring (201) are provided with a puncture film (208).

3. The lock joint for quick connection and fixation of infusion port according to claim 1, characterized in that: The ends away from each other of the two clamping rings (5) are both provided with a groove (11), the interiors of the two grooves (11) are both fixedly connected with a fixing column (12).

4. The lock joint for quick connection and fixation of infusion port according to claim 2, characterized in that: The top of the mounting ring (201) is fixedly connected with an annular track (13), the bottom of the circular ring (202) is provided with a sliding groove (14), the interior of the sliding groove (14) is slidingly connected with the annular track (13).

5. The lock joint for quick connection and fixation of infusion port according to claim 2, characterized in that: The top of the circular ring (202) is provided with an anti-skid knurling (15), the inner side of the circular ring (202) is matched in size with the size of the blocking ring (207).

6. The lock joint for quick connection and fixation of infusion port according to claim 1, characterized in that: The middle lower part of the right side of the injection seat (1) is provided with an observation window (17), the middle upper parts of the periphery of the outer side of the injection seat (1) are all fixedly connected with an anti-skid layer (18).

7. The lock joint for quick connection and fixation of infusion port according to claim 1, characterized in that: The rear end of the connecting pipe (8) is fixedly connected with a sealing ring (16), the inner side of the liquid outlet pipe (3) is matched in size with the size of the connecting pipe (8).

8. The lock joint for quick connection and fixation of infusion port according to claim 1, characterized in that: The outer side of the liquid outlet pipe (3) is fixedly connected with a sealing gasket (19), the rear end of the sealing gasket (19) is fixedly connected with the injection seat (1). The outer side of the liquid outlet pipe (3) is fixedly connected with a sealing gasket (19), the rear end of the sealing gasket (19) is fixedly connected with the injection seat (1).

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