Medical three-way valve assembly

Abstract

The utility model discloses a medical three-way valve assembly which comprises a three-way valve, the three-way valve comprises a valve body arranged in a T shape, a valve element inserted into the valve body and used for changing the communication state of any two ends of the valve body is rotationally arranged on the valve body, and a T-shaped flow channel matched with the valve body is arranged in the valve element. The three ends of the valve body are provided with a catheter connector used for being inserted into a catheter flushing opening, a flushing end connector used for allowing a flushing fluid injection pipe to be inserted and a multi-purpose connector used for allowing an injector and a urine bag liquid inlet pipe to be inserted respectively. According to the utility model, the three-way valve is respectively connected with the urethral catheter flushing port, the flushing fluid injection tube and the injector, and the valve core is rotated to switch the communication state of the three ends of the valve body, so that flushing fluid in the infusion bag can normally flow into the urethral catheter during bladder flushing, and meanwhile, when the urethral catheter is blocked, the infusion bag can be directly connected into the injector for dredging operation; the purpose that the syringe can be connected for dredging operation without pulling out the flushing fluid injection pipe is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to a medical three-way valve component. Background Art

[0002] Bladder irrigation is a method of using a catheter to inject a solution into the bladder and then draining the injected liquid out using the siphon principle.

[0003] The catheters used clinically are generally double-lumen catheters and triple-lumen catheters. When using a triple-lumen catheter for continuous bladder irrigation, blockage may occur, and syringe suction is usually used to clear the blockage. Currently, because the syringe and the flushing fluid injection tube share a catheter interface, the flushing fluid injection tube originally connected to the catheter needs to be pulled out to perform the unblocking operation, and multiple separation of the interface for suction can easily increase the risk of infection. When the patient uses a double-lumen catheter and needs flushing, the double-lumen catheter is usually pulled out and replaced with a triple-lumen catheter, or an infusion set is inserted into the double-lumen catheter for flushing. The method of replacing the triple-lumen catheter will increase the patient's discomfort, and the method of inserting the infusion set will cause the problem of injuring the double-lumen catheter due to the needle. Utility Model Content

[0004] The purpose of the utility model is to provide a medical three-way valve assembly to address the above-mentioned deficiencies, so as to achieve the purpose of connecting a syringe to a three-lumen urinary catheter for unblocking without removing the flushing liquid injection tube, and also to connect to a double-lumen urinary catheter to increase an additional access port.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a medical three-way valve assembly, comprising a three-way valve, the three-way valve comprising a valve body arranged in a T shape, a valve core which is rotatably arranged on the valve body and is inserted into the valve body and is used to change the connection state of any two ends of the valve body, a T-shaped flow channel which is adapted to the valve body is arranged in the valve core, and the three ends of the valve body are respectively provided with a catheter connector for inserting into the flushing port of the catheter, a flushing end connector for inserting a flushing liquid injection tube, and a multi-purpose connector for inserting a syringe and a urine bag inlet tube.

[0006] Furthermore, a first cap is threadedly sleeved on the catheter connector, a storage groove is provided inside the first cap for completely moving the catheter connector into, a second cap is threadedly sleeved on the flushing end connector, and a third cap is threadedly sleeved on the multi-purpose connector.

[0007] Further, the multi-purpose adapter includes a threaded section disposed on the valve body and threadedly connected to the first cap. One end of the threaded section away from the valve body is provided with a docking section for connecting to a syringe and the liquid inlet tube of the urine bag. The outer diameter of the docking section is smaller than that of the threaded section. The docking section is provided with a first thread groove for threadedly connecting to the third cap. At least two arc sections having the same diameter as the docking section are provided at one end of the docking section away from the threaded section, and an outer chamfer is provided on the arc section.

[0008] The first cap includes a sleeve for threadedly connecting to the threaded section and the catheter adapter. The receiving groove is disposed on the sleeve. A perforation communicating with the receiving groove is provided at one end of the sleeve away from the receiving groove. The aperture of the perforation is smaller than the maximum outer diameter of the arc section and larger than the inner diameter of the arc section. When the sleeve is connected to the threaded section and moves toward the valve body, the arc sections are all squeezed by the sleeve and approach each other. The first cap further includes a plugging block for plugging the perforation.

[0009] Further, the plugging block is composed of three cylindrical sections, wherein the diameter of the middle section is larger than that of the two ends. One end of the plugging block is used for plugging the perforation, and the other end is used for connecting to the catheter adapter.

[0010] Further, an anti-loss component is provided on the second cap. The anti-loss component includes a collar that can be sleeved on the flushing end adapter and the threaded section. A connecting rope is provided between the collar and the second cap.

[0011] A second thread groove for threadedly connecting the second cap is provided at one end of the sleeve away from the receiving groove.

[0012] The beneficial effects of the present utility model are embodied in:

[0013] In the present utility model, a three-way valve is respectively connected to the catheter flushing port, the flushing liquid injection tube and the syringe, and the valve core is rotated to switch the communication state of the three ends of the valve body, so that the flushing liquid in the infusion bag can normally flow into the three-lumen catheter during bladder flushing. At the same time, when the three-lumen catheter is blocked, a syringe can be directly connected for dredging operation, achieving the purpose of connecting a syringe to the three-lumen catheter for dredging operation without removing the flushing liquid injection tube. By connecting the catheter adapter of the three-way valve to the double-lumen catheter, inserting the flushing liquid injection tube into the flushing end adapter, and inserting the urine bag into the multi-purpose adapter, the patient can perform bladder flushing operation without replacing the double-lumen catheter with a three-lumen catheter, achieving the purpose of adding an additional access port that can be connected to the double-lumen catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an exploded view of the structure of the present utility model;

[0015] Figure 2 is a combined schematic diagram of the present utility model;

[0016] Figure 3 This is a schematic working diagram when the present utility model is connected to a three - lumen catheter;

[0017] Figure 4 This is a schematic working diagram when the present utility model is connected to a double - lumen catheter.

[0018] In the figure:

[0019] 1. Three - way valve; 11. Valve body; 12. Spool; 13. Catheter connector; 14. Flushing end connector; 15. Multi - purpose connector; 2. First cap; 21. Sleeve; 22. Plugging block; 3. Second cap; 4. Third cap; 5. Anti - loss component; 51. Collar; 52. Connecting rope; 6. Double - lumen catheter; 7. Three - lumen catheter; 8. Infusion bag; 9. Syringe; 10. Urine bag. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0021] Please refer to Figures 1-4 , the present utility model discloses a medical three - way valve assembly, including a three - way valve 1. The three - way valve 1 includes a valve body 11 arranged in a T - shape. A spool 12 is rotatably arranged in the valve body 11 and is used to change the communication state between any two ends of the valve body 11. A T - shaped flow channel adapted to the valve body 11 is arranged in the spool 12. Three ends of the valve body 11 are respectively provided with a catheter connector 13 for inserting into the catheter flushing port, a flushing end connector 14 for inserting the liquid outlet pipe of the infusion bag 8, and a multi - purpose connector 15 for inserting the liquid inlet pipes of the syringe 9 and the urine bag 10.

[0022] In the present utility model, by connecting the three - way valve 1 to the catheter flushing port, the liquid outlet pipe of the infusion bag 8 and the syringe 9 respectively, and rotating the spool 12 to switch the communication state of the three ends of the valve body 11, the flushing liquid in the infusion bag 8 can flow into the catheter normally during bladder flushing. At the same time, when the catheter is blocked, the syringe 9 can be directly connected for dredging operation, achieving the purpose of connecting the syringe for dredging operation without removing the flushing liquid injection tube.

[0023] In specific implementation, since double-lumen catheters 6 and triple-lumen catheters 7 are generally used as catheters, and the triple-lumen catheter 7 can be connected to an infusion bag 8 and a urine bag 10 at the same time, and normal bladder irrigation operations can be carried out. By installing a three-way valve 1 at the irrigation port of the triple-lumen catheter 7, then inserting the irrigation fluid injection tube into the irrigation end joint 14, and making the irrigation end joint 14 communicate with the catheter joint 13 through the regulating valve core 12, normal bladder irrigation can be carried out. When the catheter is blocked, by connecting a syringe 9 to the multi-purpose joint 15, first regulating the valve core 12 to make the irrigation end joint 14 communicate with the multi-purpose joint 15, so that the syringe 9 sucks the irrigation fluid in the infusion bag, and then regulating the valve core 12 to make the multi-purpose joint 15 communicate with the catheter joint 13, the irrigation fluid can be pressurized and input into the triple-lumen catheter 7 to wash away the blockage, completing the dredging;

[0024] However, because the double-lumen catheter 6 has only two lumens and can only be connected to the urine bag 10 but not to the infusion bag 8. By connecting the catheter joint 13 of the three-way valve 1 to the double-lumen catheter 6, then inserting the outlet tube of the infusion bag 8 into the irrigation end joint 14, and inserting the urine bag 10 into the multi-purpose joint 15, it enables the patient to perform bladder irrigation operations without replacing the double-lumen catheter 6 with a triple-lumen catheter 7, thus avoiding the pain caused to the patient by catheter replacement and reducing costs at the same time.

[0025] In one embodiment, a first cap 2 is threadedly sleeved on the catheter joint 13, and a receiving groove for the complete insertion of the catheter joint 13 is provided inside the first cap 2. A second cap 3 is threadedly sleeved on the irrigation end joint 14, and a third cap 4 is threadedly sleeved on the multi-purpose joint 15.

[0026] With such a design, the three joints of the three-way valve 1 are respectively protected by the first cap 2, the second cap 3 and the third cap 4, so as to avoid external contamination of the joints when this component is not in use, and further reduce the risk of infection.

[0027] In one embodiment, the multi-purpose joint 15 includes a threaded section provided on the valve body 11 and threadedly connected to the first cap 2. At one end of the threaded section away from the valve body 11, a docking section for connecting to a syringe and the inlet tube of the urine bag is provided. The outer diameter of the docking section is smaller than that of the threaded section. A first thread groove for threadedly connecting to the third cap 4 is provided on the docking section. At least two arc sections with the same diameter as the docking section are provided at one end of the docking section away from the threaded section, and an external chamfer is provided on the arc sections;

[0028] The first cap 2 includes a sleeve 21 for threaded connection with the threaded section and the catheter adapter 13. A receiving groove is provided on the sleeve 21. A perforation communicating with the receiving groove is formed at one end of the sleeve 21 away from the receiving groove. The aperture of the perforation is smaller than the maximum outer diameter of the arc section and larger than the inner diameter of the arc section. When the sleeve 21 is connected to the threaded section and moves closer to the valve body 11, the arc sections are all squeezed by the sleeve 21 and move closer to each other. The first cap 2 further includes a plugging block 22 for plugging the perforation.

[0029] With such a design, after assembling the plugging block 22 and the sleeve 21 and installing them on the catheter adapter 13, it can play a protective role for the catheter adapter 13. After the first cap 2 is removed from the catheter adapter 13, the sleeve 21 is separately taken and installed at the threaded section of the multi-purpose adapter 15. After the syringe 9 or the urine bag 10 is inserted into the multi-purpose adapter 15, it can improve the connection firmness between the syringe 9 or the urine bag 10 and the multi-purpose adapter 15, and also realizes the reuse of waste.

[0030] During specific implementation, by screwing the sleeve 21 to move closer to the valve body 11, the arc section is pressed against the connection part of the syringe 9 or the urine bag 10, increasing the friction between them, thereby preventing the syringe 9 or the urine bag 10 from detaching from the multi-purpose adapter 15. At the same time, it can also avoid the problem of liquid overflowing from the connection part between the syringe 9 and the multi-purpose adapter 15 during the dredging operation of the syringe 9.

[0031] In one embodiment, the plugging block 22 is composed of three cylindrical sections. The diameter of the middle section is larger than that of the two ends. One end of the plugging block 22 is used to plug the perforation, and the other end is used to connect with the catheter adapter 13.

[0032] With such a design, when producing the three-way valve assembly, the plugging block 22 can be first installed on the catheter adapter 13, and then the sleeve 21 is screwed onto the catheter adapter 13. During this process, the splicing of the plugging block 22 and the sleeve 21 is completed, improving the convenience during splicing.

[0033] In one embodiment, an anti-loss component 5 is provided on the second cap 3. The anti-loss component 5 includes a collar 51 that can be sleeved on the flushing end adapter 14 and the threaded section. A connecting rope 52 is provided between the collar 51 and the second cap 3;

[0034] A second threaded groove for threaded connection with the second cap 3 is formed at one end of the sleeve 21 away from the receiving groove.

[0035] With such a design, after the second cap 3 is removed from the flushing end adapter 14, the collar 51 can be sleeved on the threaded section, and then the sleeve 21 is installed at the threaded section. The sleeve 21 is used to prevent the collar 51 from separating from the threaded section, enabling the second cap 3 to cooperate with the sleeve 21 to cover the interface of the multi-purpose adapter 15 when the multi-purpose adapter 15 is not in use, avoiding external object contamination.

[0036] In specific implementation, an additional protective cover (not shown in the figure) can be added to the end of the sleeve 21 where the second thread groove is provided, so as to avoid external objects from contaminating the second thread groove of the sleeve 21 when this component is not in use.

[0037] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0039] In addition, "a plurality" means more than two.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A medical three-way valve assembly, characterized in that: The three-way valve (1) comprises a valve body (11) arranged in a T-shape, a valve core (12) which is rotatably arranged on the valve body (11) and is inserted into the valve body (11) and is used to change the communication state of any two ends of the valve body (11), a T-shaped flow channel which is matched with the valve body (11) is arranged in the valve core (12), and a catheter connector (13) which is used to be inserted into the flushing port of the catheter, a flushing end connector (14) which is used to insert a flushing liquid injection tube, and a multi-purpose connector (15) which is used to insert a syringe and a urine bag inlet tube are respectively arranged at the three ends of the valve body (11).

2. A medical three-way valve assembly according to claim 1, characterized in that: The catheter connector (13) is threadedly sleeved with a first cap (2), the first cap (2) being provided with a receiving groove for the catheter connector (13) to be completely moved in, the flushing end connector (14) is threadedly sleeved with a second cap (3), and the multi-purpose connector (15) is threadedly sleeved with a third cap (4).

3. A medical three-way valve assembly according to claim 2, characterized in that: The multi-purpose connector (15) comprises a threaded section arranged on the valve body (11) and threadedly connected to the first cover cap (2); an end of the threaded section away from the valve body (11) is provided with a docking section for connecting to a syringe and a urine bag liquid inlet tube; the outer diameter of the docking section is smaller than the outer diameter of the threaded section; a first thread groove for threadedly connecting to the third cover cap (4) is provided on the docking section; an end of the docking section away from the threaded section is provided with at least two arc sections with the same diameter as the docking section, and the arc sections are provided with external chamfers; The first cover cap (2) comprises a sleeve (21) for being threadedly connected to the threaded section and the catheter connector (13); the receiving groove is arranged on the sleeve (21); a through hole communicating with the receiving groove is provided at one end of the sleeve (21) away from the receiving groove; the aperture of the through hole is smaller than the maximum outer diameter of the arc section and larger than the inner diameter of the arc section; when the sleeve (21) is connected to the threaded section and moves toward the valve body (11), the plurality of arc sections are squeezed by the sleeve (21) and moved toward each other; the first cover cap (2) further comprises a blocking block (22) for blocking the through hole.

4. A medical three-way valve assembly according to claim 3, characterized in that: The blocking block (22) is composed of three sections of a cylinder, wherein the diameter of the middle section is larger than the diameters of the two ends; one end of the blocking block (22) is used for blocking the perforation, and the other end is used for connecting to the urinary catheter connector (13).

5. A medical three-way valve assembly according to claim 3, characterized in that: The second cover cap (3) is provided with an anti-lost component (5), the anti-lost component (5) comprises a collar (51) which can be sleeved on the flushing end connector (14) and the threaded section, and a connecting rope (52) is provided between the collar (51) and the second cover cap (3); The sleeve (21) is provided with a second thread groove at one end away from the receiving groove for threaded connection with the second cover cap (3).

Images