Adapter of peritoneal dialysis catheter
By integrating a dialysate injector into the adapter of the peritoneal dialysis tube, the adapter is easily contaminated by hand and inconvenient operation when replacing the dialysate, and a more efficient and convenient dialysate injection process is achieved.
Patent Information
- Application Number
- CN202420637523.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The adapter of the existing peritoneal dialysis tube is easily contaminated by human hands when replacing the dialysate, and it is inconvenient to operate. It requires turning on and off the knob switch many times to plug and unplug the syringe.
An adapter for a peritoneal dialysis tube is designed, and a dialysate injector is integrated. The injector cavity is removably connected to the body connection part of the adaptor body, and at least two are connected to the right end of the injector cavity for Plug the dialysate injection tube into the syringe.
It effectively avoids the staff from touching the body connection of the adapter body when injecting dialysate, reducing the risk of manual contamination, and at the same time, multiple syringes can be plugged in at one time, improving the convenience of injecting dialysate.
Smart Images
Figure CN222444962U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of peritoneal dialysis devices, in particular to an adapter for a peritoneal dialysis tube. Background Art
[0002] Peritoneal dialysis is a commonly used renal replacement therapy for patients with uremia. Compared with hemodialysis, peritoneal dialysis is simple, safe, and effective. It does not require special equipment and is not restricted by venue. Patients can perform daily dialysis treatment at home, and the cost is lower than hemodialysis. Peritoneal dialysis uses the properties of the peritoneum as a semi-permeable membrane. The prepared dialysate is regularly and regularly infused into the patient's peritoneal cavity through a peritoneal dialysis tube by gravity. Due to the difference in solute concentration gradient on both sides of the peritoneum, the solute on the high-concentration side moves to the low-concentration side, and the water moves from the hypotonic side to the hypertonic side. The peritoneal dialysis fluid is continuously replaced to achieve the purpose of removing metabolic products and toxic substances from the body and correcting water and electrolyte imbalance.
[0003] Peritoneal dialysis requires the use of an effluent bag, a dialysate bag, a peritoneal dialysis tube, and an adapter, wherein the effluent bag is an empty bag containing unused dialysate, the peritoneal dialysis tube is a tube for transferring dialysate into / out of the patient's peritoneal cavity, and the adapter is installed at the outer end of the peritoneal dialysis tube; in the process of replacing the dialysate, the effluent bag and the catheter of the dialysis bag must first be connected to the adapter through a three-way connector; then, the effluent (similar to urine) in the peritoneal cavity is discharged into the effluent bag through the peritoneal dialysis tube, the adapter, and the catheter in turn; then, the dialysate in the dialysis bag is poured into the patient's peritoneal cavity through the catheter, the adapter, and the peritoneal dialysis tube in turn; then, the effluent bag and the three-way connector of the catheter of the dialysis bag are separated from the adapter; finally, the adapter is covered with a sealing cover to complete the replacement of the dialysate.
[0004] like Figure 1As shown, it is an adapter structure of a peritoneal dialysis tube in the prior art, comprising an adapter body 1, a three-way joint 2 and a sealing cover 3, wherein the left end of the adapter body 1 is connected with a peritoneal dialysis tube 4 and a knob switch 5, the knob switch 5 is sleeved outside the peritoneal dialysis tube 4, and the knob switch 5 is used to control whether the peritoneal dialysis tube 4 is conductive or not, and the right end of the adapter body 1 is provided with a body connecting portion 6; the left end of the three-way joint 2 is provided with a three-way connecting cavity 21, and the right end of the three-way connecting cavity 21 is connected with a three-way catheter 22; the body connecting portion 6 of the adapter body 1 can be detachably connected to the sealing cover 3, or detachably connected to the three-way connecting cavity 21 of the three-way joint 2; the three-way catheter 22 has a dialysis fluid catheter 221 and a dialysate catheter 222, the dialysis fluid catheter 221 is used to connect an empty dialysis fluid bag, and the dialysate catheter 222 is used to connect a dialysate bag filled with dialysate. Before replacing the dialysate, the knob switch 5 is in a closed state, the peritoneal dialysis tube 4 is in a non-conductive state, and the sealing cover 3 is connected to the body connecting portion 6 of the adapter body 1 . When the dialysate needs to be replaced, the patient first removes the sealing cover 3 from the main body connection part 6 of the adapter body 1; then, the three-way connection cavity 21 of the three-way connector 2 is connected to the main body connection part 6 of the adapter body 1; then, the knob switch 5 is turned on to put the peritoneal dialysis tube 4 in a conducting state, and the effluent in the patient's peritoneal cavity will be discharged into the effluent bag through the peritoneal dialysis tube, the adapter and the catheter in turn; then, the catheter channel of the effluent bag is closed, and the catheter channel of the dialysate bag is turned on, and the dialysate in the dialysate bag will be poured into the patient's peritoneal cavity through the catheter, the adapter and the peritoneal dialysis tube in turn; finally, the knob switch 5 is turned off to put the peritoneal dialysis tube 4 in a non-conducting state, the three-way connector 2 is taken out and the sealing cover 3 is covered, and the dialysate is replaced.
[0005] The inner end of the peritoneal dialysis tube has multiple side holes. During use, the inner end side holes of the peritoneal dialysis tube can easily absorb organs and tissues such as the peritoneum and intestines of the human body, resulting in blockage of the side holes of the peritoneal dialysis tube. At the same time, the peritoneal dialysis tube and the adapter are also easily blocked by body fluid impurities. When blockage occurs, the staff needs to dredge the peritoneal dialysis tube. The dredging method can be found in Figure 4 The staff first removes the sealing cover 3 from the main body connecting portion 6 of the adapter body 1; then, inserts a 50ml syringe into the right end of the adapter, rotates the knob switch 5 to open, and injects 50ml of dialysate into the peritoneal dialysis tube through the 50ml syringe; then, rotates the knob switch 5 to close, and takes out the 50ml syringe that has injected the dialysate; then, inserts another 50ml syringe into the right end of the adapter, rotates the knob switch 5 to open, and injects 50ml of dialysate into the peritoneal dialysis tube through another 50ml syringe; and repeats this cycle. After injecting dialysate into the peritoneal dialysis tube many times, the peritoneal dialysis tube is unblocked.
[0006] However, this method of unblocking peritoneal dialysis tubes has the following two technical problems: first, the main connecting part 6 of the adapter is easily contaminated by human hands, and the staff needs to insert a 50ml syringe into the right end of the adapter and inject dialysate multiple times. During this process, the staff can easily touch the main connecting part 6 of the adapter, causing the main connecting part 6 to be contaminated by human hands; second, the staff needs to use up to 50ml syringes to inject dialysate, but the right end of the adapter can only be plugged with one 50ml syringe at a time. Every time the staff injects a 50ml syringe of dialysate, they need to open and close the knob switch 5 once, which is inconvenient to operate. Utility Model Content
[0007] The technical problem to be solved by the utility model is to provide an adapter for a peritoneal dialysis tube, in view of the deficiencies in the above-mentioned prior art. The adapter is provided with a dialysate injector, which can prevent the staff from touching the main body connection part of the adapter body when injecting the dialysate with a syringe, and prevent the main body connection part from being contaminated by human hands. At the same time, multiple syringes can be plugged in at one time, greatly improving the convenience of injecting the dialysate.
[0008] To solve the above-mentioned first technical problem, the first technical solution of the utility model is: an adapter for a peritoneal dialysis tube, comprising an adapter body, a three-way joint and a sealing cover body, the left end of the adapter body is connected with a peritoneal dialysis tube and a knob switch, the knob switch is sleeved outside the peritoneal dialysis tube, and the knob switch is used to control whether the peritoneal dialysis tube is conductive or not, and the right end of the adapter body is provided with a body connecting part; the left end of the three-way joint is provided with a three-way connecting cavity, and the right end of the three-way connecting cavity is connected with a three-way catheter; the body connecting part of the adapter body can be detachably connected to the sealing cover body, or detachably connected to the three-way connecting cavity of the three-way joint; and also includes a dialysate injector, the dialysate injector is provided with an injector cavity, the injector cavity can be detachably connected to the body connecting part of the adapter body, and the right end of the injector cavity is connected with at least two dialysate injection tubes for plugging a syringe.
[0009] Preferably, the end of the dialysate injection tube of the dialysate injector is detachably connected to a rubber sealing cap.
[0010] Preferably, the number of the dialysate injection tubes is 2-5, and the dialysate injection tubes are integrally connected to the injector cavity. Further, the right end of the injector cavity of the dialysate injector is hemispherical, the number of the dialysate injection tubes is 3, and the angle between adjacent dialysate injection tubes is 30-60 degrees.
[0011] Preferably, the main body connection portion of the adapter body has a first external thread and a second external thread, the second external thread is located to the right of the first external thread, and the outer diameter of the second external thread is smaller than the outer diameter of the first external thread. Further, the inner wall of the sealing cover body is provided with a first internal thread, the inner wall of the three-way connection cavity of the three-way connector has a second internal thread, the inner wall of the injector cavity of the dialysate injector has a third internal thread, the first external thread is threadedly connected and matched with the first internal thread, and the second external thread is threadedly connected and matched with the second internal thread and the third internal thread.
[0012] The beneficial effects of the utility model are as follows: the utility model is provided with a dialysate injector, the dialysate injector is provided with an injector cavity, the injector cavity can be detachably connected to the main body connection part of the adapter main body, and the right end of the injector cavity is connected to at least two dialysate injection tubes for plugging syringes; when it is necessary to dredge the peritoneal dialysis tube, the staff first removes the sealing cover from the main body connection part of the adapter main body; then, the injector cavity of the dialysate injector is connected to the main body connection part of the adapter main body; then, multiple 50ml syringes are used to inject the dialysate into the main body of the adapter. The syringes are respectively plugged into different dialysate injection tubes on the dialysate injector; then, the knob switch is rotated to open, and dialysate is injected into the peritoneal dialysis tube through multiple 50ml syringes; if it is necessary to continue injecting the dialysate, the knob switch can be rotated to close, and the 50ml syringes that have injected the dialysate are taken out; then multiple 50ml syringes are respectively plugged into different dialysate injection tubes on the dialysate injector, the knob switch is rotated to open again, and 50ml of dialysate is injected into the peritoneal dialysis tube through multiple 50ml syringes, and the cycle is repeated. It can be seen that after the dialysate injector is set in the utility model, it can prevent the staff from touching the main body connection part of the adapter body when injecting the dialysate with the syringe, and prevent the main body connection part from being contaminated by human hands. At the same time, multiple syringes can be plugged in at one time, which greatly improves the convenience of injecting the dialysate. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the dispersed structure of the adapter of the peritoneal dialysis tube in the prior art.
[0014] Figure 2 It is a structural schematic diagram of the connection between the adapter body and the three-way connector.
[0015] Figure 3 It is a structural schematic diagram of the connection between the adapter body and the sealing cover body.
[0016] Figure 4 The figure is a diagram showing the use of a syringe in the prior art to inject dialysate into an adapter of a peritoneal dialysis tube.
[0017] Figure 5 This is a schematic diagram of the dispersed structure of the adapter of the peritoneal dialysis tube of the utility model.
[0018] Figure 6 This is a structural schematic diagram of the connection between the adapter body and the dialysate injector.
[0019] Figure 7 This is a schematic diagram of the cross-sectional structure of the dialysate injector.
[0020] Figure 8 The utility model is a diagram showing the state of use of the syringe of the utility model for injecting dialysate into the adapter of the peritoneal dialysis tube. DETAILED DESCRIPTION
[0021] The structural principle and working principle of the utility model are further described in detail below with reference to the accompanying drawings.
[0022] In the description of the present invention, it should be understood that the terms "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.
[0023] like Figure 2 , 3 As shown in Figures 5, 6, 7 and 8, the utility model is an adapter for a peritoneal dialysis tube, comprising an adapter body 1, a three-way joint 2 and a sealing cover 3. The left end of the adapter body 1 is connected with a peritoneal dialysis tube 4 and a knob switch 5. The knob switch 5 is sleeved outside the peritoneal dialysis tube 4. The knob switch 5 is used to control whether the peritoneal dialysis tube 4 is conductive. The right end of the adapter body 1 is provided with a body connecting portion 6; the left end of the three-way joint 2 is provided with a three-way connecting cavity 21, and the right end of the three-way connecting cavity 21 is connected with a three-way catheter 22; the three-way catheter 22 has a dialysis fluid catheter 221 and a dialysate catheter 222. The effluent conduit 221 is used to connect an empty effluent bag (not shown), and the dialysate conduit 222 is used to connect a dialysate bag filled with dialysate (not shown). The body connection portion 6 of the adapter body 1 can be detachably connected to the sealing cover body 3, or detachably connected to the three-way connection cavity 21 of the three-way connector 2. It also includes a dialysate injector 7, which is provided with an injector cavity 71. The injector cavity 71 can be detachably connected to the body connection portion 6 of the adapter body 1, and the right end of the injector cavity 71 is connected to at least two dialysate injection tubes 72 for inserting the syringe 100.
[0024] The method for replacing the dialysate in the utility model is as follows: before replacing the dialysate, Figure 3As shown, the knob switch 5 is in the off state, the peritoneal dialysis tube 4 is in the non-conductive state, and the sealing cover 3 is connected to the body connection part 6 of the adapter body 1. When the dialysate needs to be replaced, the patient first removes the sealing cover 3 from the body connection part 6 of the adapter body 1; then, the three-way connection cavity 21 of the three-way connector 2 is connected to the body connection part 6 of the adapter body 1, see Figure 2 ; Next, the knob switch 5 is turned on to put the peritoneal dialysis tube 4 in a conducting state, and the effluent in the patient's peritoneal cavity will be discharged into the effluent bag through the peritoneal dialysis tube, the adapter and the catheter in turn; then, the catheter channel of the effluent bag is closed, and the catheter channel of the dialysate bag is turned on, and the dialysate in the dialysate bag will be poured into the patient's peritoneal cavity through the catheter, the adapter and the peritoneal dialysis tube in turn; finally, the knob switch 5 is turned off to put the peritoneal dialysis tube 4 in a non-conducting state, the three-way connector 2 is taken out and the sealing cover 3 is covered, and the dialysate replacement is completed, see Figure 3 .
[0025] When the peritoneal dialysis tube 4 needs to be unblocked, the staff first removes the sealing cover 3 from the main body connection portion 6 of the adapter body 1; then, see Figure 5 , connect the dialysate injector cavity 71 of the dialysate injector 7 to the main body connection portion 6 of the adapter body 1; then, use multiple 50ml syringes 100 to respectively insert different dialysate injection tubes 72 on the dialysate injector 7, see Figure 8 ; Then, rotate the knob switch 5 to open, and use multiple 50ml syringes 100 to inject dialysate into the peritoneal dialysis tube 4; if you need to continue injecting dialysate, you can rotate the knob switch 5 to close, and take out the 50ml syringe 100 that has injected the dialysate; then use multiple 50ml syringes 100 to plug different dialysate injection tubes 72 on the dialysate injector 7, rotate the knob switch 5 to open again, and then use multiple 50ml syringes 100 to inject 50ml dialysate into the peritoneal dialysis tube 4, and repeat this cycle until the peritoneal dialysis tube 4 is unblocked. It can be seen that after the dialysate injector 7 is set in the utility model, it can prevent the staff from touching the main body connection part 6 of the adapter body 1 when injecting the dialysate with a syringe, and prevent the main body connection part 6 from being contaminated by human hands. At the same time, multiple syringes 100 can be plugged in at one time, which greatly improves the convenience of injecting dialysate.
[0026] like Figure 5 , 6 As shown in Figure 7, the end of the dialysate injection tube 72 of the dialysate injector 7 is detachably connected to a rubber sealing cap 73. The end of the dialysate injection tube 72 can be sealed by the rubber sealing cap 73, and the sealing performance is good. When the dialysate needs to be injected, the rubber sealing cap 73 can be unscrewed, which is convenient to use.
[0027] like Figure 5 , 6 As shown in Figures 7 and 8, the number of the dialysate injection tubes 72 is 2-5, preferably 3, and the dialysate injection tubes 72 are integrally connected to the injector cavity 71; the right end of the injector cavity 71 of the dialysate injector 7 is hemispherical, and the angle between adjacent dialysate injection tubes 72 is 30-60 degrees.
[0028] like Figure 5 , 7 As shown, the body connection portion 6 of the adapter body 1 has a first external thread 61 and a second external thread 62, the second external thread 62 is located to the right of the first external thread 61, and the outer diameter of the second external thread 62 is smaller than the outer diameter of the first external thread 61. The inner wall of the sealing cover body 3 is provided with a first internal thread, the inner wall of the three-way connection cavity 21 of the three-way connector 2 is provided with a second internal thread, and the inner wall of the injector cavity 71 of the dialysate injector 7 is provided with a third internal thread 74, the first external thread 61 is threadedly connected and matched with the first internal thread, and the second external thread 62 is threadedly connected and matched with the second internal thread and the third internal thread 74.
[0029] The above is only a preferred embodiment of the present invention. Any slight modification, equivalent changes and modifications made to the above embodiments according to the technical solution of the present invention are within the scope of the technical solution of the present invention.
Claims
1. An adapter for a peritoneal dialysis tube, comprising an adapter body (1), a three-way connector (2) and a sealing cover (3), wherein the left end of the adapter body (1) is connected to a peritoneal dialysis tube (4) and a knob switch (5), the knob switch (5) being sleeved outside the peritoneal dialysis tube (4), the knob switch (5) being used to control whether the peritoneal dialysis tube (4) is turned on or off, and the right end of the adapter body (1) is provided with a body connection portion (6); the left end of the three-way connector (2) is provided with a three-way connection cavity (21), and the right end of the three-way connection cavity (21) is connected to a three-way catheter (22); the body connection portion (6) of the adapter body (1) can be detachably connected to the sealing cover (3), or detachably connected to the three-way connection cavity (21) of the three-way connector (2); characterized in that: It also includes a dialysate injector (7), the dialysate injector (7) being provided with an injector cavity (71), the injector cavity (71) being detachably connected to the body connection portion (6) of the adapter body (1), and the right end of the injector cavity (71) being connected to at least two dialysate injection tubes (72) for inserting a syringe (100).
2. The adapter for the peritoneal dialysis tube (4) according to claim 1, characterized in that: The end of the dialysate injection tube (72) of the dialysate injector (7) is detachably connected to a rubber sealing cap (73).
3. The adapter for the peritoneal dialysis tube (4) according to claim 1, characterized in that: The number of the dialysate injection tubes (72) is 2-5, and the dialysate injection tubes (72) are integrally connected to the injector cavity (71).
4. The adapter for the peritoneal dialysis tube (4) according to claim 2, characterized in that: The right end of the injector cavity (71) of the dialysate injector (7) is hemispherical, the number of the dialysate injection tubes (72) is three, and the angle between adjacent dialysate injection tubes (72) is 30-60 degrees.
5. The adapter for the peritoneal dialysis tube (4) according to claim 1, characterized in that: The body connection portion (6) of the adapter body (1) has a first external thread (61) and a second external thread (62), the second external thread (62) is located to the right of the first external thread (61), and the outer diameter of the second external thread (62) is smaller than the outer diameter of the first external thread (61).
6. The adapter for the peritoneal dialysis tube (4) according to claim 5, characterized in that: The inner wall of the sealing cover body (3) is provided with a first internal thread, the inner wall of the three-way connection cavity (21) of the three-way joint (2) is provided with a second internal thread, the inner wall of the injector cavity (71) of the dialysate injector (7) is provided with a third internal thread (74), the first external thread is threadedly connected to the first internal thread, and the second external thread is threadedly connected to the second internal thread and the third internal thread (74).