Anti-blocking dialysis catheter assembly convenient to fix

Abstract

The invention relates to the technical field of dialysis catheters, and discloses a convenient-to-fix anti-blocking dialysis catheter assembly which comprises a catheter, a titanium alloy fixing joint is mounted on the left side wall of the catheter in a threaded manner, a titanium alloy connecting seat is mounted on the right side wall of the catheter in a threaded manner, and a titanium alloy joint seat is mounted at the right end of the titanium alloy connecting seat in a threaded manner. The flow guide assembly is arranged in an inner cavity of the guide pipe; the friction assembly is arranged on the outer side of the side wall of the guide pipe; the liquid spraying assembly is arranged on the right side of the outer side wall of the guide pipe; and the mounting assembly is arranged on the outer side wall of the titanium alloy connecting seat. Through accessories such as the flow guide assembly and the friction assembly, the catheter can be heated, scabs adhered to the inner wall of the catheter can be broken, the possibility that the catheter is blocked during dialysis of a patient is effectively reduced, meanwhile, the whole catheter assembly can be fixed to a bed leg through the installation assembly, and the catheter assembly can be conveniently used by the patient during dialysis.

Description

Technical Field

[0001] The invention relates to the technical field of dialysis catheters, in particular to an anti-blocking dialysis catheter component which is easy to fix. Background Art

[0002] At present, the more effective treatment for patients with renal failure is dialysis therapy, which is a treatment method that allows components in body fluids to be excreted from the body through a semipermeable membrane. Peritoneal dialysis is a dialysis method that uses the body's own peritoneum as a dialysis membrane. Its principle is to exchange solutes and water with the plasma components in the capillaries on the other side of the peritoneum through the dialysate infused into the abdominal cavity, thereby removing residual metabolic products and excess water from the body, and at the same time replenishing the body's necessary substances through the dialysate. By continuously renewing the dialysate, the purpose of kidney replacement or supportive treatment is achieved. Before peritoneal dialysis treatment, a safe channel needs to be established first for fluid exchange. Here, a small operation is required to insert the dialysis catheter into the abdominal cavity. One end of the tube remains in the abdominal cavity, the middle end is buried under the skin, and the other end remains outside the abdominal wall. During the dialysis process, the original fluid containing waste in the abdominal cavity needs to be extracted through the dialysis catheter, and then fresh dialysate containing glucose and electrolytes is injected into the abdominal cavity. In this way, the peritoneal capillaries on one side of the peritoneum in the abdominal cavity contain blood containing waste and excess water, and the peritoneal dialysis fluid on the other side. The waste and excess water in the blood pass through the peritoneum into the dialysate, and this continuous circulation achieves the therapeutic effect.

[0003] After searching, a kind of anti-blocking peritoneal dialysis tube for nephrology proposed in patent publication number CN204411384U includes a catheter, a dialysis auxiliary tube, a microsensor, a steel ball, a dialysis main tube and an annular protrusion. The rear end of the catheter is connected to a titanium alloy fixed joint, and a fixed sleeve is installed on the catheter. The front end of the catheter is connected to a dialysis main tube and two dialysis auxiliary tubes. The outer walls of the dialysis main tube and the dialysis auxiliary tubes on both sides are provided with a plurality of annular protrusions parallel to each other. The front end of the dialysis main tube is provided with a main tube insertion head, and the front end of the dialysis auxiliary tube is provided with an auxiliary tube insertion head. Spherical cavities are provided in the main tube insertion head and the auxiliary tube insertion head, and the spherical cavities are provided with steel balls.

[0004] In the above patent documents, when inserting or withdrawing the dialysis catheter into or from the patient's abdominal cavity, the anti-blocking structure provided on the dialysis catheter will hinder the operation, making it difficult to perform the operation, or the surgical incision must be enlarged to successfully use the dialysis catheter, which will greatly increase the pain and risk of the patient's operation and is not conducive to recovery. Therefore, there is an urgent need for an anti-blocking dialysis catheter assembly that is easy to fix. Summary of the invention

[0005] The present invention aims to overcome at least one defect of the above-mentioned prior art and provide an anti-blocking dialysis catheter assembly that is easy to fix. The dialysis catheter has a reasonable structure, is easy to insert and withdraw from the patient's abdominal cavity, and can effectively solve the problem of blockage during use.

[0006] To achieve the above object, the present invention provides the following technical solution: an anti-blocking dialysis catheter assembly that is easy to fix, comprising a catheter, a titanium alloy fixing joint is threadedly installed on the left wall of the catheter, a titanium alloy connecting seat is threadedly installed on the right wall of the catheter, and a titanium alloy connecting seat is threadedly installed on the right end of the titanium alloy connecting seat, and further comprising:

[0007] A flow guide component, which is arranged in the inner cavity of the catheter and is used to transmit the flow of liquid;

[0008] A friction component, the friction component is arranged on the outside of the side wall of the conduit, and the friction component is used to heat the conduit by friction;

[0009] A liquid spraying assembly, the liquid spraying assembly is arranged on the right side of the outer wall of the conduit, and the liquid spraying assembly is used to apply oil to the outer wall of the conduit;

[0010] The mounting assembly is arranged on the outer side wall of the titanium alloy connecting seat, and the mounting assembly is used to support the catheter assembly.

[0011] Preferably, the guide assembly includes a bracket, a transmission screw, a crushing frame, an inner magnetic ring, an outer magnetic ring, a positioning seat and a guide ring. The bracket is fixedly installed on the left side of the inner wall of the conduit, the transmission screw is rotatably installed in the inner cavity of the bracket, the crushing frame is threadedly installed on the middle part of the side wall of the transmission screw, the inner wall of the conduit is slidably installed with an inner magnetic ring, the outer wall of the conduit is slidably installed with an outer magnetic ring, and the right end face of the transmission screw is fixedly installed with a positioning seat.

[0012] Preferably, the crushing frame is fixedly mounted on the inner wall of the inner magnetic ring, the thread lead angle of the transmission screw is greater than the equivalent friction angle of the crushing frame, the outer wall of the positioning seat is fixedly mounted with guide vanes, and the guide vanes are arranged in a ring on the side wall of the positioning seat in several groups at equal intervals, the inner wall of the outer magnetic ring has opposite magnetic properties to the outer wall of the inner magnetic ring, and the magnetism manifests itself as magnetic attraction.

[0013] Preferably, a guide ring is fixedly installed on the right side of the inner wall of the conduit, the guide blades and the positioning seat are arranged in the inner cavity of the guide ring, the cross-section of the guide ring is wide on both sides and narrow in the middle, and a crushing head is fixedly installed on the inner wall of the titanium alloy fixed joint, and the crushing heads are arranged in a ring on the side wall of the titanium alloy fixed joint at equal intervals in several groups.

[0014] Preferably, the friction assembly includes a positioning plate, a reciprocating threaded groove rod, a positioning pin and a connecting sleeve. The positioning plates are fixedly installed on the left and right sides of the outer wall of the conduit, the reciprocating threaded groove rod is rotatably installed in the inner cavity of the positioning plate, the connecting sleeve is slidably installed in the middle part of the outer wall of the reciprocating threaded groove rod, and the outer magnetic ring is fixedly installed on the lower part of the side wall of the connecting sleeve.

[0015] Preferably, a positioning pin is slidably installed in the inner cavity of the thread groove wall of the reciprocating thread groove rod, and the positioning pin is fixedly installed on the inner cavity side wall of the connecting sleeve. A groove is opened in the middle of the outer wall of the catheter, and the outer magnetic ring slides in the inner cavity of the groove. The groove part of the catheter is made of glass material, and the inner wall of the outer magnetic ring is bonded with silk. A washable cotton seat is detachably installed on the lower side of the middle of the outer wall of the catheter.

[0016] Preferably, the liquid spray assembly includes a positioning rod, a boosting box, a transmission rod, a cam block, a piston plate, a return spring and a liquid storage cylinder. The positioning rod is fixedly installed on the right side of the outer wall of the conduit, the boosting box is fixedly installed on the upper end surface of the positioning rod, the transmission rod is rotatably installed in the inner cavity of the boosting box, the piston plate is slidably installed on the upper and lower sides of the inner cavity of the boosting box, and the liquid storage cylinder is also fixedly installed on the side of the outer wall of the conduit close to the boosting box.

[0017] Preferably, a transmission rod is fixedly installed on the right end surface of the reciprocating threaded groove rod, and a cam block is fixedly installed on the right end surface of the transmission rod, and the cam block is arranged in the middle of the inner cavity of the boosting box. The transmission rod is rotatably connected to the boosting box, and the cam block is tightly pressed against the side wall of the piston plate. A return spring is fixedly installed on the side wall of the piston plate, and the other end of the return spring is fixedly installed on the side wall of the inner cavity of the boosting box.

[0018] Preferably, the liquid storage cylinder is connected with the boosting box through a liquid inlet pipe, the inner cavity of the liquid inlet pipe is provided with a one-way water valve whose outlet is toward the inner cavity of the boosting box, the liquid storage cylinder is connected with the outside, a liquid outlet pipe connected with the outer magnetic ring is fixedly mounted on the side wall of the boosting box, the inner cavity of the liquid outlet pipe is provided with a one-way water valve whose outlet is toward the inner cavity of the outer magnetic ring, the inner cavities of the boosting box and the liquid storage cylinder are both provided with a supersaturated solution of sodium acetate, a rolling ball is installed on the inner side wall of the outer magnetic ring, the liquid outlet pipe is made of a flexible hose, and pressure relief ports are provided on the upper and lower side walls of the boosting box.

[0019] Preferably, the mounting assembly comprises an arc-shaped ring and a supporting ear plate, the arc-shaped ring is sleeved on the outer wall of the titanium alloy connecting seat, the arc-shaped ring is made of rubber, and Velcro is installed on the bottom of the inner wall of the supporting ear plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, the peritoneal dialysis fluid in the patient's abdomen will continuously enter the catheter from the titanium alloy fixed joint. Through the arrangement of the guide ring and the guide blades inside the catheter, when the peritoneal dialysis fluid continues to flow, the guide blades can drive the positioning seat to continuously rotate the transmission screw. The transmission screw is threadedly connected to the crushing frame, and the thread lead angle of the transmission screw is greater than the equivalent friction angle of the crushing frame. At this time, under the limiting effect of the inner wall of the catheter on the crushing frame, the crushing frame will drive the inner magnetic ring to slide on the inner wall of the catheter, remove the scab adhered to the inner wall of the catheter, and cut it under the action of the crushing frame and the crushing head, thereby effectively reducing the possibility of blockage of the entire catheter assembly during dialysis treatment, and greatly improving the practicality of the entire catheter assembly.

[0022] 2. In this invention, when the position of the inner magnetic ring is constantly changing, the inner magnetic ring can drive the outer magnetic ring to slide on the outer wall of the catheter under the attraction of magnetic force. Since the groove portion of the catheter is made of glass and the inner wall of the outer magnetic ring is bonded with silk, the catheter will gradually be heated by the continuous friction between the catheter and the outer magnetic ring, so that the adhesion of the scab adhered to the inner wall of the catheter is reduced, thereby improving the anti-blocking effect of the entire catheter assembly. At the same time, the connecting sleeve is fixedly connected to the outer magnetic ring. Under the cooperation of the positioning pin on the inner wall of the connecting sleeve, when the connecting sleeve slides on the side wall of the reciprocating thread groove rod, the reciprocating thread groove rod will continuously rotate The reciprocating threaded groove rod can drive the transmission rod to rotate the cam block, and the cam block will continuously squeeze the piston plates on the upper and lower sides. When the protrusions at both ends of the cam block continuously rotate until they are in a horizontal state, the middle cavity of the booster box gradually decreases, and the pressure of the supersaturated sodium acetate solution inside gradually increases. At this time, the supersaturated sodium acetate solution in the middle cavity of the booster box can be discharged from the liquid outlet pipe into the inner cavity of the outer magnetic ring, and then coated on the surface of the catheter from the rolling ball. The continuous friction between the catheter and the outer magnetic ring can quickly vaporize the supersaturated sodium acetate solution, generate a lot of heat, cause the catheter to heat up, and further reduce the possibility of scab adhesion to the inner wall of the tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a conveniently fixed anti-blocking dialysis catheter assembly according to the present invention;

[0024] Figure 2 It is a schematic diagram of the disassembled structure of an anti-blocking dialysis catheter assembly that is easy to fix in the present invention;

[0025] Figure 3 This is a schematic diagram showing the structure of a crushing head of a dialysis catheter assembly that is easy to fix and prevents blocking according to the present invention;

[0026] Figure 4 This is a schematic diagram showing the structure of an installation component of an anti-blocking dialysis catheter component that is easy to fix in the present invention;

[0027] Figure 5 A schematic diagram showing the structure of a catheter of a dialysis catheter assembly that is easy to fix and prevents blocking according to the present invention;

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of a catheter of a dialysis catheter assembly that is easy to fix and prevents blocking according to the present invention;

[0029] Figure 7 This is a schematic cross-sectional view of the connecting sleeve of an anti-blocking dialysis catheter assembly that is easy to fix in the present invention;

[0030] Figure 8 This is a schematic cross-sectional view of the outer magnetic ring of an anti-blocking dialysis catheter assembly that is easy to fix in the present invention;

[0031] Fig. 9 The present invention is a schematic cross-sectional view of the booster box of an anti-blocking dialysis catheter assembly that is easy to fix.

[0032] In the figure: 1. catheter; 11. groove; 12. washing cotton seat; 2. titanium alloy fixed joint; 21. crushing head; 3. titanium alloy connecting seat; 4. titanium alloy connecting seat; 5. guide assembly; 51. bracket; 52. transmission screw; 53. crushing frame; 54. inner magnetic ring; 55. outer magnetic ring; 551. rolling ball; 56. positioning seat; 561. guide blade; 57. guide ring; 6. friction assembly; 61. positioning plate; 62. reciprocating thread groove rod; 63. positioning pin; 64. connecting sleeve; 7. spray assembly; 71. positioning rod; 72. booster box; 721. liquid outlet pipe; 722. pressure relief port; 73. transmission rod; 74. cam block; 75. piston plate; 76. reset spring; 77. liquid storage cylinder; 771. liquid inlet pipe; 8. installation assembly; 81. arc ring; 82. support ear plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 9 The present invention provides a technical solution for an anti-blocking dialysis catheter assembly that is easy to fix: an anti-blocking dialysis catheter assembly that is easy to fix, comprising a catheter 1, a titanium alloy fixing joint 2 is threadedly installed on the left wall of the catheter 1, a titanium alloy connecting seat 3 is threadedly installed on the right wall of the catheter 1, and a titanium alloy connecting seat 4 is threadedly installed on the right end of the titanium alloy connecting seat 3, and further comprising:

[0035] A flow guiding component 5, which is arranged in the inner cavity of the catheter 1 and is used for transmitting by using the flowing liquid;

[0036] The friction component 6 is arranged on the outer side of the side wall of the conduit 1, and the friction component 6 is used to heat the conduit 1 by friction;

[0037] A liquid spraying assembly 7, which is arranged on the right side of the outer wall of the conduit 1 and is used to apply oil to the outer wall of the conduit 1;

[0038] The mounting assembly 8 is arranged on the outer side wall of the titanium alloy connecting seat 3 and is used to support the catheter assembly.

[0039] Further, the flow guide assembly 5 includes a bracket 51, a transmission screw 52, ​​a crushing frame 53, an inner magnetic ring 54, an outer magnetic ring 55, a positioning seat 56 and a flow guide ring 57. The bracket 51 is fixedly installed on the left side of the inner wall of the catheter 1, the transmission screw 52 is rotatably installed in the inner cavity of the bracket 51, the crushing frame 53 is threadedly installed in the middle part of the side wall of the transmission screw 52, ​​the inner magnetic ring 54 is slidably installed on the inner wall of the catheter 1, the outer magnetic ring 55 is slidably installed on the outer wall of the catheter 1, and the positioning seat 56 is fixedly installed on the right end face of the transmission screw 52;

[0040] The crushing frame 53 is fixedly mounted on the inner side wall of the inner magnetic ring 54. The thread lead angle of the driving screw 52 is greater than the equivalent friction angle of the crushing frame 53. The outer side wall of the positioning seat 56 is fixedly mounted with guide vanes 561. Several groups of guide vanes 561 are arranged in an annular manner and equidistantly on the side wall of the positioning seat 56. The inner wall of the outer magnetic ring 55 has opposite magnetic properties to the outer wall of the inner magnetic ring 54, and the magnetism is manifested as magnetic attraction.

[0041] A guide ring 57 is fixedly installed on the right side of the inner wall of the conduit 1, and the guide blades 561 and the positioning seat 56 are arranged in the inner cavity of the guide ring 57. The cross-section of the guide ring 57 is wide on both sides and narrow in the middle. A crushing head 21 is fixedly installed on the inner wall of the titanium alloy fixed joint 2, and several groups of crushing heads 21 are arranged in a ring at equal intervals on the side wall of the titanium alloy fixed joint 2.

[0042] It should be noted that the peritoneal dialysis fluid in the patient's abdomen will continuously enter the catheter 1 from the titanium alloy fixed joint 2, and through the arrangement of the guide ring 57 and the guide blade 561 inside the catheter 1, when the peritoneal dialysis fluid continues to flow, the guide blade 561 can drive the positioning seat 56 to continuously rotate the transmission screw 52, ​​and the transmission screw 52 is threadedly connected to the crushing frame 53, and the thread lead angle of the transmission screw 52 is greater than the equivalent friction angle of the crushing frame 53. At this time, under the limiting effect of the inner wall of the catheter 1 on the crushing frame 53, the crushing frame 53 will drive the inner magnetic ring 54 to slide on the inner wall of the catheter 1, remove the scab adhered to the inner wall of the catheter 1, and cut it under the action of the crushing frame 53 and the crushing head 21, thereby effectively reducing the possibility of blockage of the entire catheter assembly during dialysis treatment, and greatly improving the practicality of the entire catheter assembly 1.

[0043] Further, the friction assembly 6 includes a positioning plate 61, a reciprocating thread groove rod 62, a positioning pin 63 and a connecting sleeve 64. The positioning plates 61 are fixedly installed on the left and right sides of the outer wall of the catheter 1. The reciprocating thread groove rod 62 is rotatably installed in the inner cavity of the positioning plate 61. The connecting sleeve 64 is slidably installed in the middle of the outer wall of the reciprocating thread groove rod 62. The outer magnetic ring 55 is fixedly installed on the lower part of the side wall of the connecting sleeve 64.

[0044] A positioning pin 63 is slidably installed in the inner cavity of the thread groove wall of the reciprocating thread groove rod 62, and the positioning pin 63 is fixedly installed on the inner cavity side wall of the connecting sleeve 64. A groove 11 is opened in the middle of the outer wall of the catheter 1, and the outer magnetic ring 55 slides in the inner cavity of the groove 11. The groove 11 of the catheter 1 is made of glass material, and the inner wall of the outer magnetic ring 55 is bonded with silk. A wash cotton seat 12 is detachably installed on the lower side of the middle of the outer wall of the catheter 1.

[0045] It should be noted that when the position of the inner magnetic ring 54 is constantly changing, under the attraction of magnetic force, the inner magnetic ring 54 can drive the outer magnetic ring 55 to slide on the outer wall of the catheter 1. Since the groove 11 of the catheter 1 is made of glass, the inner wall of the outer magnetic ring 55 is bonded with silk. At this time, with the continuous friction between the catheter 1 and the outer magnetic ring 55, the catheter 1 will gradually heat up, reducing the adhesion of the scab adhered to the inner wall of the catheter 1, thereby improving the anti-blocking effect of the entire catheter assembly.

[0046] Further, the liquid spraying assembly 7 includes a positioning rod 71, a booster box 72, a transmission rod 73, a cam block 74, a piston plate 75, a return spring 76 and a liquid storage cylinder 77. The positioning rod 71 is fixedly installed on the right side of the outer wall of the catheter 1, the booster box 72 is fixedly installed on the upper end surface of the positioning rod 71, the inner cavity of the booster box 72 is rotatably installed with the transmission rod 73, the inner cavity of the booster box 72 is slidably installed with the piston plate 75 on the upper and lower sides, and the outer wall of the catheter 1 is also fixedly installed with a liquid storage cylinder 77 on the side close to the booster box 72;

[0047] A transmission rod 73 is fixedly mounted on the right end surface of the reciprocating thread groove rod 62, and a cam block 74 is fixedly mounted on the right end surface of the transmission rod 73. The cam block 74 is arranged in the middle of the inner cavity of the booster box 72. The transmission rod 73 is rotatably connected to the booster box 72, and the cam block 74 is tightly pressed against the side wall of the piston plate 75. A return spring 76 is fixedly mounted on the side wall of the piston plate 75, and the other end of the return spring 76 is fixedly mounted on the inner cavity side wall of the booster box 72.

[0048] The liquid storage cylinder 77 is connected with the boosting box 72 through a liquid inlet pipe 771. The inner cavity of the liquid inlet pipe 771 is provided with a one-way water valve whose outlet is toward the inner cavity of the boosting box 72. The liquid storage cylinder 77 is connected with the outside. A liquid outlet pipe 721 connected with the outer magnetic ring 55 is fixedly installed on the side wall of the boosting box 72. The inner cavity of the liquid outlet pipe 721 is provided with a one-way water valve whose outlet is toward the inner cavity of the outer magnetic ring 55. The inner cavities of the boosting box 72 and the liquid storage cylinder 77 are both provided with a supersaturated sodium acetate solution. A rolling ball 551 is installed on the inner side wall of the outer magnetic ring 55. The liquid outlet pipe 721 is made of a flexible hose. Pressure relief ports 722 are provided on the upper and lower side walls of the boosting box 72.

[0049] It should be noted that when the connecting sleeve 64 slides on the side wall of the reciprocating thread groove rod 62, the reciprocating thread groove rod 62 will rotate continuously, and the reciprocating thread groove rod 62 can drive the transmission rod 73 to rotate the cam block 74, and the cam block 74 will continuously squeeze the piston plates 75 on the upper and lower sides. When the protrusions at both ends of the cam block 74 rotate continuously until they are in a vertical state, the middle cavity of the booster box 72 gradually increases, and the pressure of the supersaturated sodium acetate solution inside gradually decreases. Under the action of the external atmospheric pressure, the supersaturated sodium acetate solution in the liquid storage cylinder 77 can enter the booster box through the liquid inlet pipe 771. The middle cavity of the box 72, when the protrusions at both ends of the cam block 74 continuously rotate until they are in a horizontal state, the middle cavity of the booster box 72 gradually decreases, and the pressure of the supersaturated sodium acetate solution inside gradually increases. At this time, the supersaturated sodium acetate solution in the middle cavity of the booster box 72 can be discharged from the liquid outlet pipe 721 into the inner cavity of the outer magnetic ring 55, and then coated on the surface of the catheter 1 from the rolling ball 551. The supersaturated sodium acetate solution can be quickly vaporized by the continuous friction between the catheter 1 and the outer magnetic ring 55, generating a large amount of heat, causing the catheter 1 to heat up, further reducing the possibility of scabs adhering to the inner wall of the tube body 1.

[0050] Furthermore, the mounting assembly 8 includes an arc-shaped ring 81 and a supporting ear plate 82 . The arc-shaped ring 81 is sleeved on the outer wall of the titanium alloy connecting seat 3 . The arc-shaped ring 81 is made of rubber. Velcro is installed on the bottom of the inner wall of the supporting ear plate 82 .

[0051] Working principle:

[0052] When in use, the patient will use a soft pipe to connect the titanium alloy fixed joint 2, and the other end will be connected to the indwelling needle in the patient's abdomen, and the tightener will be loosened. At this time, the peritoneal dialysis fluid in the patient's abdomen will continuously enter the catheter 1 from the titanium alloy fixed joint 2, and through the arrangement of the guide ring 57 and the guide blade 561 inside the catheter 1, the guide blade 561 can drive the positioning seat 56 to continuously rotate the transmission screw 52 when the peritoneal dialysis fluid continues to flow, and the transmission screw 52 is threadedly connected to the crushing frame 53, and the thread lead angle of the transmission screw 52 is greater than the equivalent friction angle of the crushing frame 53. At this time, under the limiting effect of the inner wall of the catheter 1 on the crushing frame 53, the crushing frame 53 will drive the inner magnetic ring 54 to slide on the inner wall of the catheter 1, remove the scab adhered to the inner wall of the catheter 1, and cut it under the action of the crushing frame 53 and the crushing head 21, thereby effectively reducing the possibility of blockage of the entire catheter assembly during dialysis treatment, and greatly improving the practicality of the entire catheter assembly 1;

[0053] When the position of the inner magnetic ring 54 is constantly changing, under the attraction of magnetic force, the inner magnetic ring 54 can drive the outer magnetic ring 55 to slide on the outer wall of the catheter 1. Since the groove 11 of the catheter 1 is made of glass and the inner wall of the outer magnetic ring 55 is attached with silk, the catheter 1 will gradually heat up with the continuous friction between the catheter 1 and the outer magnetic ring 55, so that the adhesion of the scab adhered to the inner wall of the catheter 1 is reduced, thereby improving the anti-blocking effect of the entire catheter assembly;

[0054] At the same time, it is fixedly connected to the outer magnetic ring 55 through the connecting sleeve 64. Under the cooperation of the positioning pin 63 on the inner wall of the connecting sleeve 64, when the connecting sleeve 64 slides on the side wall of the reciprocating thread groove rod 62, the reciprocating thread groove rod 62 will continuously rotate, and the reciprocating thread groove rod 62 can drive the transmission rod 73 to rotate the cam block 74, and the cam block 74 will continuously squeeze the piston plates 75 on the upper and lower sides. When the protrusions at both ends of the cam block 74 continue to rotate until the vertical state, the middle cavity of the booster box 72 gradually increases, and the pressure of the supersaturated sodium acetate solution inside gradually decreases. Under the action of the external atmospheric pressure, the sodium acetate supersaturated solution in the liquid storage cylinder 77 is The saturated solution can enter the middle cavity of the boosting box 72 through the liquid inlet pipe 771. When the protrusions at both ends of the cam block 74 rotate continuously until they are in a horizontal state, the middle cavity of the boosting box 72 gradually decreases, and the pressure of the supersaturated sodium acetate solution inside gradually increases. At this time, the supersaturated sodium acetate solution in the middle cavity of the boosting box 72 can be discharged from the liquid outlet pipe 721 into the inner cavity of the outer magnetic ring 55, and then coated on the surface of the catheter 1 from the rolling ball 551. The supersaturated sodium acetate solution can be quickly vaporized by the continuous friction between the catheter 1 and the outer magnetic ring 55, generating a large amount of heat, causing the catheter 1 to heat up, further reducing the possibility of scabs adhering to the inner wall of the tube body 1.

[0055] By setting the arc-shaped ring 81, the patient can easily disassemble the titanium alloy connecting seat 3, so that the catheter 1, the titanium alloy fixed joint 2, and the titanium alloy joint seat 4 are separated, which is convenient for later cleaning and maintenance. At the same time, a supporting ear plate 82 is added, and the entire catheter assembly can be adhered to the foot of the bed for use when the patient lies flat, which is convenient and quick.

[0056] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A conveniently fixed anti-blocking dialysis catheter assembly, comprising a catheter (1), characterized in that: The left side wall of the conduit (1) is threadedly mounted with a titanium alloy fixing joint (2), the right side wall of the conduit (1) is threadedly mounted with a titanium alloy connecting seat (3), and the right end of the titanium alloy connecting seat (3) is threadedly mounted with a titanium alloy connecting seat (4), and further comprises: A flow guide component (5), the flow guide component (5) being arranged in the inner cavity of the catheter (1), and the flow guide component (5) being used for transmission using flowing liquid; A friction component (6), the friction component (6) being arranged on the outside of the side wall of the conduit (1), and the friction component (6) being used to heat the conduit (1) by friction; A liquid spraying assembly (7), the liquid spraying assembly (7) being arranged on the right side of the outer wall of the conduit (1), the liquid spraying assembly (7) being used to apply oil to the outer wall of the conduit (1); A mounting assembly (8), wherein the mounting assembly (8) is arranged on the outer side wall of the titanium alloy connecting seat (3), and the mounting assembly (8) is used to support the catheter assembly.

2. The anti-blocking dialysis catheter assembly that is easy to fix according to claim 1, characterized in that: The flow guide component (5) comprises a bracket (51), a transmission screw (52), a crushing frame (53), an inner magnetic ring (54), an outer magnetic ring (55), a positioning seat (56) and a flow guide ring (57); the bracket (51) is fixedly mounted on the left side of the inner wall of the conduit (1); the transmission screw (52) is rotatably mounted in the inner cavity of the bracket (51); the crushing frame (53) is threadedly mounted on the middle part of the side wall of the transmission screw (52); the inner magnetic ring (54) is slidably mounted on the inner wall of the conduit (1); the outer magnetic ring (55) is slidably mounted on the outer wall of the conduit (1); and the positioning seat (56) is fixedly mounted on the right end face of the transmission screw (52).

3. The anti-blocking dialysis catheter assembly that is easy to fix according to claim 2, characterized in that: The crushing frame (53) is fixedly mounted on the inner side wall of the inner magnetic ring (54); the thread lead angle of the driving screw (52) is greater than the equivalent friction angle of the crushing frame (53); guide vanes (561) are fixedly mounted on the outer side wall of the positioning seat (56); a plurality of groups of guide vanes (561) are arranged in an annular manner and equidistantly on the side wall of the positioning seat (56); the inner wall of the outer magnetic ring (55) has opposite magnetic properties to the outer wall of the inner magnetic ring (54), and the magnetism manifests as magnetic attraction.

4. The anti-blocking dialysis catheter assembly that is easy to fix according to claim 3, characterized in that: A guide ring (57) is fixedly installed on the right side of the inner wall of the conduit (1), and the guide blades (561) and the positioning seat (56) are arranged in the inner cavity of the guide ring (57). The cross-section of the guide ring (57) is wide on both sides and narrow in the middle. A crushing head (21) is fixedly installed on the inner wall of the titanium alloy fixed joint (2), and a plurality of groups of crushing heads (21) are arranged in an annular manner at equal intervals on the side wall of the titanium alloy fixed joint (2).

5. The anti-blocking dialysis catheter assembly that is easy to fix according to claim 2, characterized in that: The friction assembly (6) comprises a positioning plate (61), a reciprocating threaded groove rod (62), a positioning pin (63) and a connecting sleeve (64); the positioning plates (61) are fixedly mounted on the left and right sides of the outer wall of the conduit (1); the reciprocating threaded groove rod (62) is rotatably mounted in the inner cavity of the positioning plate (61); the connecting sleeve (64) is slidably mounted in the middle of the outer wall of the reciprocating threaded groove rod (62); and the outer magnetic ring (55) is fixedly mounted on the lower part of the side wall of the connecting sleeve (64).

6. The anti-blocking dialysis catheter assembly that is easy to fix according to claim 5, characterized in that: A positioning pin (63) is slidably mounted in the inner cavity of the thread groove wall of the reciprocating thread groove rod (62), and the positioning pin (63) is fixedly mounted on the inner cavity side wall of the connecting sleeve (64). A groove (11) is provided in the middle of the outer wall of the conduit (1), and the outer magnetic ring (55) slides in the inner cavity of the groove (11). The groove (11) of the conduit (1) is made of glass material, and the inner wall of the outer magnetic ring (55) is bonded with silk. A water-washing cotton seat (12) is detachably mounted on the lower side of the middle of the outer wall of the conduit (1).

7. The anti-blocking dialysis catheter assembly that is easy to fix according to claim 5, characterized in that: The liquid spraying assembly (7) comprises a positioning rod (71), a boosting box (72), a transmission rod (73), a cam block (74), a piston plate (75), a return spring (76) and a liquid storage cylinder (77); the positioning rod (71) is fixedly mounted on the right side of the outer wall of the conduit (1); the boosting box (72) is fixedly mounted on the upper end surface of the positioning rod (71); the transmission rod (73) is rotatably mounted in the inner cavity of the boosting box (72); the piston plate (75) is slidably mounted on the upper and lower sides of the inner cavity of the boosting box (72); and the liquid storage cylinder (77) is also fixedly mounted on the side of the outer wall of the conduit (1) close to the boosting box (72).

8. The anti-blocking dialysis catheter assembly that is easy to fix according to claim 7, characterized in that: A transmission rod (73) is fixedly mounted on the right end surface of the reciprocating threaded groove rod (62), and a cam block (74) is fixedly mounted on the right end surface of the transmission rod (73). The cam block (74) is arranged in the middle of the inner cavity of the boosting box (72). The transmission rod (73) is rotatably connected to the boosting box (72), and the cam block (74) is tightly abutted against the side wall of the piston plate (75). A return spring (76) is fixedly mounted on the side wall of the piston plate (75), and the other end of the return spring (76) is fixedly mounted on the inner cavity side wall of the boosting box (72).

9. The anti-blocking dialysis catheter assembly that is easy to fix according to claim 8, characterized in that: The liquid storage cylinder (77) is connected to the boosting box (72) through a liquid inlet pipe (771). The inner cavity of the liquid inlet pipe (771) is provided with a one-way water valve with an outlet toward the inner cavity of the boosting box (72). The liquid storage cylinder (77) is connected to the outside. A liquid outlet pipe (721) connected to the outer magnetic ring (55) is fixedly mounted on the side wall of the boosting box (72). The inner cavity of the liquid outlet pipe (721) is provided with a one-way water valve with an outlet toward the inner cavity of the outer magnetic ring (55). The inner cavities of the boosting box (72) and the liquid storage cylinder (77) are both provided with a supersaturated sodium acetate solution. A rolling ball (551) is mounted on the inner side wall of the outer magnetic ring (55). The liquid outlet pipe (721) is made of a flexible hose. Pressure relief ports (722) are provided on the upper and lower side walls of the boosting box (72).

10. The anti-blocking dialysis catheter assembly that is easy to fix according to claim 1, characterized in that: The mounting assembly (8) comprises an arc-shaped ring (81) and a supporting ear plate (82); the arc-shaped ring (81) is sleeved on the outer wall of the titanium alloy connecting seat (3); the arc-shaped ring (81) is made of rubber; and a Velcro is installed at the bottom of the inner wall of the supporting ear plate (82).

Images