Peritoneal dialysis connecting instrument for kidney internal medicine

Abstract

The invention relates to the technical field of medical instruments, in particular to a peritoneal dialysis connecting instrument for the kidney internal medicine department, which comprises a three-way pipe, a catheter is connected to a middle pipeline of the three-way pipe, a connecting pipe is connected to one end, far away from the three-way pipe, of the catheter, and a built-in pipe is arranged at the other end of the connecting pipe; an exhaust assembly is arranged in the connecting pipe, and butt joint assemblies are arranged at the two ends of the connecting pipe. Compared with the prior art, the exhaust assembly is arranged in the middle of the connecting pipe, the position of the movable plate is changed by rotating a rotary knob during infusion, air in a pipeline enters the air bag, then the movable plate is driven to reset under the rebound effect of a torsional spring, and dialysate can flow into the built-in pipe through the connecting pipe; the purpose of independently absorbing and eliminating air in the pipeline is achieved, the air is prevented from entering the body of a patient during infusion, and discomfort of the patient is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a peritoneal dialysis connecting device for nephrology. Background Art

[0002] In nephrology, peritoneal dialysis is a commonly used method for treating acute and chronic renal failure. It uses the properties of the peritoneum as a semi-permeable membrane and uses gravity to regularly and regularly infuse the prepared dialysis fluid into the patient's peritoneal cavity through a catheter to remove metabolic products and toxic substances in the body and correct water and electrolyte imbalances.

[0003] Peritoneal dialysis requires a connector to connect the dialysate bag, waste bag, and the patient's internal tubing. Most devices utilize a tee as their primary structure. This pipeline structure makes it difficult to expel air from the pipelines during dialysate delivery, inevitably transferring air into the body and causing discomfort. Therefore, this application provides a peritoneal dialysis connector for nephrology to facilitate the separate expulsion of air during infusion. Summary of the Invention

[0004] In view of this, the object of the present invention is to provide a peritoneal dialysis connection device for nephrology to solve the problem of inconvenience in exhausting air in the pipeline.

[0005] Based on the above objectives, the present invention provides a peritoneal dialysis connection device for nephrology, comprising a tee, a middle pipe of the tee connected to a catheter, an end of the catheter away from the tee connected to a connecting pipe, an inner tube provided at the other end of the connecting pipe, an exhaust assembly provided inside the connecting pipe, and docking assemblies provided at both ends of the connecting pipe;

[0006] The exhaust assembly plays a role in absorbing the air inside the device in the middle of the connecting pipe, and the docking assembly acts on the connection between the connecting pipe and other pipelines, so that the two can be quickly disassembled and assembled.

[0007] Preferably, the exhaust assembly includes an airbag arranged in the middle of the connecting tube, a center rod is rotatably connected to the middle of the upper surface of the connecting tube, a circular ring is fixedly connected to the middle of the inner wall of the connecting tube, and a baffle is fixedly connected to the outer surface of the circular ring, and the baffle is arranged between the airbag and the built-in tube.

[0008] Preferably, the top end of the central rod is fixedly connected to a knob, the outer surface of the central rod is sleeved with a torsion spring, and the torsion spring is clamped to the lower part of the knob.

[0009] Preferably, the central rod is movably inserted into the middle of the circular ring, the outer surface of the central rod is fixedly connected to a slider, and one end of the slider passing through the circular ring is fixedly connected to a movable plate.

[0010] Preferably, a sliding groove is provided on the outer surface of the ring, and the sliding groove extends to both sides with the catheter as the center. The angle of the sliding groove is ninety degrees, and the slider slides inside the sliding groove.

[0011] Preferably, the docking assembly includes a docking tube fixedly connected to both ends of the connecting tube, the outer surface of the docking tube is movably connected with a ring, the interior of the docking tube is fixedly connected with an inner tube, and the inner tube is inserted into the interior of the catheter or the internal tube.

[0012] Preferably, a threaded barrel is movably inserted into the upper surface of the docking tube, one end of the threaded barrel extending into the collar is fixedly connected to a gear, the inner wall of the collar is fixedly connected to a gear ring, and the outer surface of the gear is meshed with the gear ring.

[0013] Preferably, the internal thread of the threaded barrel is connected to a threaded rod, and one end of the threaded rod extending into the interior of the butt joint tube is fixedly connected to a clamping plate, and the clamping plate is arranged to be arc-shaped.

[0014] Preferably, a positioning rod is fixedly connected to the connection between the threaded rod and the clamping plate, and a positioning groove is provided on the inner wall of the butt joint, and the positioning rod slides inside the positioning groove.

[0015] Preferably, a liquid infusion tube is provided at one end of the three-way pipe, and a liquid discharge tube is provided at the other end of the three-way pipe.

[0016] Beneficial effects of the present invention:

[0017] 1. This peritoneal dialysis connection device for nephrology has an exhaust assembly located in the middle of the connecting tube. When infusion is performed, the position of the movable plate is changed by turning the knob, allowing the air in the pipeline to enter the airbag. The movable plate is then reset by the rebound action of the torsion spring, allowing the dialysate to flow through the connecting tube into the internal tube. This achieves the purpose of separately absorbing and eliminating the air in the pipeline, preventing air from entering the patient's body during infusion and reducing patient discomfort.

[0018] 2. This type of peritoneal dialysis connection device for nephrology is equipped with docking components at both ends of the connecting tube. The transmission is carried out by rotating the ring and the engagement of the gear ring with the gear, driving the threaded barrel to rotate. Under the limiting action of the positioning rod, the threaded rod will move linearly with the rotation of the threaded barrel, and then push the splint pipeline to clamp and fix it, realizing rapid disassembly and assembly of the connecting tube and the pipeline. At the same time, the connecting tube can also be cleaned and disinfected for reuse, reducing medical costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the connecting pipe structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the exhaust assembly structure of the present invention;

[0023] Figure 4 Schematic diagram of the internal structure of the ring of the present invention;

[0024] Figure 5 This is a schematic structural diagram of the docking assembly of the present invention from a first perspective;

[0025] Figure 6 It is a schematic diagram of the partial cross-sectional structure of the docking assembly of the present invention.

[0026] The following are marked in the figure:

[0027] 1. Tee; 2. Infusion tube; 3. Catheter tube; 4. Drain tube; 5. Connecting tube; 6. Exhaust assembly; 601. Air bag; 602. Knob; 603. Center rod; 604. Ring; 605. Baffle; 606. Torsion spring; 607. Slider; 608. Slide; 609. Movable plate; 7. Docking assembly; 701. Docking tube; 702. Ring; 703. Inner tube; 704. Gear ring; 705. Threaded barrel; 706. Gear; 707. Threaded rod; 708. Clamp; 709. Positioning rod; 710. Positioning groove; 8. Internal tube. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0029] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0030] like Figures 1 to 6 As shown, a peritoneal dialysis connection device for nephrology includes a tee 1, a middle pipe of the tee 1 is connected to a liquid catheter 3, an end of the liquid catheter 3 away from the tee 1 is connected to a connecting pipe 5, the other end of the connecting pipe 5 is provided with an internal tube 8, an exhaust component 6 is provided inside the connecting pipe 5, and both ends of the connecting pipe 5 are provided with docking components 7, an infusion tube 2 is provided at one end of the tee 1, and a drainage tube 4 is provided at the other end of the tee 1. The exhaust component 6 absorbs the air inside the device along with the middle part of the connecting pipe 5, and the docking component 7 acts on the connection between the connecting pipe 5 and other pipelines, so that the two can be quickly disassembled;

[0031] The infusion tube 2 is connected to the dialysis fluid bag, the drainage tube 4 is connected to the waste fluid bag, the catheter tube 3 is connected to the connecting tube 5, and the other end of the connecting tube 5 is connected to the built-in tube 8. During infusion, the exhaust component 6 is used to exhaust the air in the pipeline to prevent air from entering the patient's body during infusion, reducing the patient's discomfort. The docking component 7 is used to achieve rapid disassembly of the pipeline and the connecting tube 5, so that the connecting tube 5 can be cleaned and disinfected and reused, reducing medical costs.

[0032] like Figure 2 、 Figure 3 and Figure 4As shown, the exhaust assembly 6 includes an air bag 601 arranged in the middle of the connecting tube 5, a central rod 603 is rotatably connected to the middle of the upper surface of the connecting tube 5, a circular ring 604 is fixedly connected to the middle of the inner wall of the connecting tube 5, and a baffle 605 is fixedly connected to the outer surface of the circular ring 604. The baffle 605 is arranged between the air bag 601 and the built-in tube 8, and the top of the central rod 603 is fixedly connected to the knob 602. The outer surface of the central rod 603 is sleeved with a torsion spring 606, which is clamped to the lower part of the knob 602. The central rod 603 is movably inserted into the middle of the circular ring 604, and the outer surface of the central rod 603 is fixedly connected to a slider 607. One end of the slider 607 passes through the circular ring 604 and is fixedly connected to a movable plate 609. A sliding groove 608 is provided on the outer surface of the circular ring 604. The sliding groove 608 extends to both sides with the catheter 3 as the center. The angle of the sliding groove 608 is 90 degrees, and the slider 607 slides inside the sliding groove 608.

[0033] First, press the airbag 601 to flatten it, turn the knob 602 to drive the center rod 603 to rotate, and the center rod 603 will squeeze the torsion spring 606 during the rotation. At the same time, the center rod 603 will drive the slider 607 to slide inside the slide groove 608. The movable plate 609 rotates around the center rod 603 as the slider 607 moves. The rotated movable plate 609 is placed between the catheter 3 and the built-in tube 8. Then release the airbag 601 and connect the infusion tube 2 to the infusion bag for infusion. At this time, the dialysate flowing in the pipeline will squeeze the original air in the pipeline, and the airbag 601 will rebound. With the help of adsorption, the air flows along the pipeline into the connecting tube 5 and then flows into the inside of the airbag 601 under the limit of the movable plate 609 and the baffle 605. After observing that the dialysate has entered the connecting tube 5, the knob 602 is loosened, the torsion spring 606 rebounds and drives the center rod 603 to reset, and the movable plate 609 returns to the space between the catheter 3 and the airbag 601 again. The dialysate can then flow through the connecting tube 5 into the built-in tube 8 and finally into the patient's body, thereby achieving the purpose of separately absorbing and eliminating the air in the pipeline, preventing air from entering the patient's body during infusion, and reducing the patient's discomfort.

[0034] like Figure 2 、 Figure 5 and Figure 6As shown, the docking assembly 7 includes a docking tube 701 fixedly connected to both ends of the connecting tube 5, the outer surface of the docking tube 701 is movably connected with a collar 702, the interior of the docking tube 701 is fixedly connected with an inner tube 703, the inner tube 703 is inserted into the interior of the catheter 3 or the internal tube 8, and a threaded cylinder 705 is movably inserted into the upper surface of the docking tube 701, the end of the threaded cylinder 705 extending into the collar 702 is fixedly connected with a gear 706, the inner wall of the collar 702 is fixedly connected with a gear ring 704, the outer surface of the gear 706 is meshed with the gear ring 704, the internal thread of the threaded cylinder 705 is threadedly connected with a threaded rod 707, the end of the threaded rod 707 extending into the interior of the docking tube 701 is fixedly connected with a splint 708, the splint 708 is arranged in an arc shape, and a positioning rod 709 is fixedly connected to the connection between the threaded rod 707 and the splint 708, and a positioning groove 710 is provided on the inner wall of the docking tube 701, and the positioning rod 709 slides inside the positioning groove 710;

[0035] When connecting the various catheters, the catheter 3 and the internal tube 8 are respectively inserted into the outside of the inner tube 703 in the butt joint 701 on both sides of the connecting tube 5, and then the ring 702 is rotated. The ring 702 rotates along the outer surface of the butt joint 701 and drives the gear ring 704 and the gear 706 to rotate. The rotation of the gear 706 drives the threaded barrel 705 to rotate synchronously. Since the bottom of the threaded rod 707 is limited by the positioning rod 709, the threaded barrel 705 drives the threaded rod 707 to move along the threaded barrel 705 during rotation, and then pushes the splint 708 to move toward the inner tube 703, thereby achieving the effect of clamping and fixing the pipeline. When disassembling, just rotate the ring 702 in the opposite direction, thereby realizing quick disassembly and assembly of the connecting tube 5 and the pipeline, and also making the connecting tube 5 able to be cleaned and disinfected and reused, thereby reducing medical costs.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0037] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A peritoneal dialysis connection device for nephrology, characterized in that: include: A three-way pipe (1), wherein a middle pipe of the three-way pipe (1) is connected to a liquid guide pipe (3), one end of the liquid guide pipe (3) away from the three-way pipe (1) is connected to a connecting pipe (5), the other end of the connecting pipe (5) is provided with a built-in pipe (8), an exhaust assembly (6) is provided inside the connecting pipe (5), and both ends of the connecting pipe (5) are provided with docking assemblies (7); The exhaust assembly (6) plays a role in absorbing the air inside the device in the middle of the connecting pipe (5), and the docking assembly (7) acts on the connection between the connecting pipe (5) and other pipelines, so that the two can be quickly disassembled and assembled.

2. The peritoneal dialysis connection device for nephrology according to claim 1, characterized in that: The exhaust assembly (6) comprises an air bag (601) arranged in the middle of the connecting tube (5); a center rod (603) is rotatably connected to the middle of the upper surface of the connecting tube (5); a circular ring (604) is fixedly connected to the middle of the inner wall of the connecting tube (5); a baffle (605) is fixedly connected to the outer surface of the circular ring (604); and the baffle (605) is arranged between the air bag (601) and the built-in tube (8).

3. The peritoneal dialysis connection device for nephrology according to claim 2, characterized in that: The top end of the central rod (603) is fixedly connected to a knob (602), and the outer surface of the central rod (603) is sleeved with a torsion spring (606), which is clamped on the lower part of the knob (602).

4. The peritoneal dialysis connection device for nephrology according to claim 3, characterized in that: The central rod (603) is movably inserted in the middle of the circular ring (604), and a slider (607) is fixedly connected to the outer surface of the central rod (603), and one end of the slider (607) that passes through the circular ring (604) is fixedly connected to a movable plate (609).

5. The peritoneal dialysis connection device for nephrology according to claim 4, characterized in that: The outer surface of the circular ring (604) is provided with a slide groove (608), and the slide groove (608) extends to both sides with the catheter (3) as the center. The angle of the slide groove (608) is ninety degrees, and the slider (607) slides inside the slide groove (608).

6. The peritoneal dialysis connection device for nephrology according to claim 5, characterized in that: The docking assembly (7) comprises a docking tube (701) fixedly connected to both ends of the connecting tube (5); a collar (702) is movably connected to the outer surface of the docking tube (701); an inner tube (703) is fixedly connected to the interior of the docking tube (701); and the inner tube (703) is inserted into the interior of the catheter (3) or the internal tube (8).

7. The peritoneal dialysis connection device for nephrology according to claim 6, characterized in that: A threaded tube (705) is movably inserted into the upper surface of the butt-jointing tube (701); one end of the threaded tube (705) extending into the sleeve (702) is fixedly connected to a gear (706); the inner wall of the sleeve (702) is fixedly connected to a gear ring (704); and the outer surface of the gear (706) is meshed with the gear ring (704).

8. The peritoneal dialysis connection device for nephrology according to claim 7, characterized in that: The internal thread of the threaded barrel (705) is connected to a threaded rod (707), and one end of the threaded rod (707) extending into the interior of the butt joint tube (701) is fixedly connected to a clamping plate (708), and the clamping plate (708) is arranged in an arc shape.

9. The peritoneal dialysis connection device for nephrology according to claim 8, characterized in that: A positioning rod (709) is fixedly connected to the connection between the threaded rod (707) and the clamping plate (708), and a positioning groove (710) is provided on the inner wall of the butt joint tube (701), and the positioning rod (709) slides inside the positioning groove (710).

10. The peritoneal dialysis connection device for nephrology according to claim 9, characterized in that: One end of the three-way pipe (1) is provided with a liquid infusion pipe (2), and the other end of the three-way pipe (1) is provided with a liquid discharge pipe (4).

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