Dialysis catheter based on swirling flow technology

Abstract

The invention provides a dialysis catheter based on a swirl flow technology, and relates to the field of dialysis catheters.The dialysis catheter comprises a connecting mechanism, the connecting mechanism comprises a connecting block, a vein connecting pipe and an artery connecting pipe, and a catheter mechanism is arranged at the bottom of the connecting mechanism; the catheter mechanism comprises a venous catheter, a venous side hole, an arterial catheter, an arterial side hole and a spiral flow induction unit, the inner wall and the outer wall of the catheter mechanism are each provided with a nano-coating mechanism, and each nano-coating mechanism comprises a copper nano-particle coating and a black phosphorus nano-coating. By arranging the spiral flow inducer, blood pressure is rotated, the wall surface shear stress of the inner wall of an artery cavity is improved, the risk of thrombus generation is reduced, wall suction is effectively prevented by arranging the vein side hole and the artery side hole, and the thrombus generation risk is reduced. Through cooperation of the copper nanoparticle coating, the black phosphorus nano coating and the graphene oxide coating, the coating has multiple antibacterial mechanisms such as contact sterilization, ion interference, oxidative stress induction and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of dialysis catheters, and in particular to a dialysis catheter based on swirling flow technology. Background Art

[0002] Dialysis catheters are important medical devices used in hemodialysis treatment. They are mainly used to establish an extracorporeal blood circulation pathway, drawing the patient's blood out of the body for purification and then returning it to the body.

[0003] In the prior art, dialysis catheters are prone to thrombosis during use, which affects dialysis blood flow and even causes more serious complications. Summary of the Invention

[0004] The purpose of the present invention is to provide a dialysis catheter based on swirling flow technology to solve the problem mentioned in the background art that dialysis catheters are prone to thrombosis during use, affecting dialysis blood flow and even causing more serious complications.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: it includes: a connecting mechanism, the connecting mechanism includes a connecting block, a venous connecting tube and an arterial connecting tube, the bottom of the connecting mechanism is provided with a catheter mechanism, the catheter mechanism includes a venous catheter, a venous side hole, an arterial catheter, an arterial side hole and a spiral flow inducer, the inner wall and the outer wall of the catheter mechanism are both provided with a nano-coating mechanism, the nano-coating mechanism includes a copper nanoparticle coating and a black phosphorus nano-coating.

[0006] As a preferred embodiment, one side of the top of the connection block is fixedly connected to the bottom of the venous connection tube, and the other side of the top of the connection block is fixedly connected to the bottom of the arterial connection tube.

[0007] As a preferred embodiment, the bottom of the connecting mechanism is fixedly connected to the top of the venous catheter, and a venous side hole is opened on one side of the bottom of the venous catheter.

[0008] As a preferred embodiment, the bottom of the connecting mechanism is fixedly connected to the top of the arterial catheter, and an arterial side hole is opened on one side of the bottom of the arterial catheter.

[0009] As a preferred embodiment, one side of the outer wall of the venous catheter is fixedly connected to one side of the outer wall of the arterial side hole, and a spiral flow inducer is provided inside the arterial catheter.

[0010] As a preferred embodiment, the interior of the venous catheter is communicated with the interior of the venous connecting tube, and the interior of the arterial catheter is communicated with the interior of the arterial connecting tube.

[0011] As a preferred embodiment, the inner wall and outer wall of the venous catheter are sprayed with a copper nanoparticle coating, and the inner wall and outer wall of the arterial catheter are sprayed with a copper nanoparticle coating.

[0012] As a preferred embodiment, the outer wall of the copper nanoparticle coating is sprayed with a black phosphorus nanocoating, and the outer wall of the black phosphorus nanocoating is sprayed with a graphene oxide coating.

[0013] As a preferred embodiment, the operation method is as follows: blood enters the interior of the arterial catheter through the bottom of the arterial catheter and the arterial side hole, and enters the interior of the dialysis machine through the connecting block and the arterial connecting tube. When entering, the blood pressure produces rotation due to the setting of the spiral flow inducer. The blood purified by the dialysis machine is returned to the patient's body through the venous catheter and the venous side hole. Through the cooperation between the copper nanoparticle coating, the black phosphorus nanocoating and the graphene oxide coating, multiple antibacterial mechanisms such as contact sterilization, ion interference, and oxidative stress induction are combined. Through the setting of the black phosphorus nanocoating, auxiliary photothermal antibacterial enhancement is achieved.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are:

[0015] 1. In the present invention, the patient's blood enters the arterial catheter through the bottom and arterial side hole, and then enters the dialysis machine through the connecting block and the arterial connecting tube. When entering, the blood pressure is swirled by the setting of the spiral flow inducer. The blood purified by the dialysis machine is then returned to the patient's body through the venous catheter and the venous side hole. The swirling of the blood increases the wall shear stress of the inner wall of the arterial cavity, reduces the risk of thrombosis, and effectively prevents wall aspiration by the setting of the venous side hole and the arterial side hole.

[0016] 2. The present invention, through the cooperation between copper nanoparticle coating, black phosphorus nanocoating and graphene oxide coating, has multiple antibacterial mechanisms such as contact sterilization, ion interference, and oxidative stress induction. Through the setting of black phosphorus nanocoating, auxiliary photothermal antibacterial enhancement in weak light or in vivo environment is achieved, bacterial adhesion and biofilm formation are inhibited, while the safety of catheterization is improved and intraoperative complications are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a dialysis catheter based on swirling flow technology provided by the present invention;

[0018] Figure 2 A schematic diagram of a connection mechanism for a dialysis catheter based on swirling flow technology provided by the present invention;

[0019] Figure 3 A schematic diagram of the catheter mechanism of a dialysis catheter based on swirling flow technology provided by the present invention;

[0020] Figure 4 A perspective view of a catheter mechanism of a dialysis catheter based on swirling flow technology provided by the present invention;

[0021] Figure 5 A partial cross-sectional view of a catheter mechanism of a dialysis catheter based on swirling flow technology provided by the present invention;

[0022] Figure 6 A partial schematic diagram of the nano-coating structure of a dialysis catheter based on swirling flow technology provided by the present invention.

[0023] Legend:

[0024] 1. Connecting mechanism; 101. Connecting block; 102. Venous connecting tube; 103. Arterial connecting tube; 2. Catheter mechanism; 201. Venous catheter; 202. Venous side hole; 203. Arterial catheter; 204. Arterial side hole; 205. Spiral flow inducer; 3. Nano-coating mechanism; 301. Copper nano-particle coating; 302. Black phosphorus nano-coating; 303. Graphene oxide coating. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1-6 The present invention provides a technical solution: comprising: a connecting mechanism 1, the connecting mechanism 1 comprising a connecting block 101, a venous connecting tube 102 and an arterial connecting tube 103; a catheter mechanism 2 is provided at the bottom of the connecting mechanism 1; the catheter mechanism 2 comprises a venous catheter 201, a venous side hole 202, an arterial catheter 203, an arterial side hole 204 and a spiral flow inducer 205; the inner wall and the outer wall of the catheter mechanism 2 are both provided with a nano-coating mechanism 3, the nano-coating mechanism 3 comprising a copper nano-particle coating 301 and a black phosphorus nano-coating 302.

[0027] In one embodiment, one side of the top of the connecting block 101 is fixedly connected to the bottom of the venous connecting tube 102, the other side of the top of the connecting block 101 is fixedly connected to the bottom of the arterial connecting tube 103, the bottom of the connecting mechanism 1 is fixedly connected to the top of the venous catheter 201, and a venous side hole 202 is opened on one side of the bottom of the venous catheter 201. The bottom of the connecting mechanism 1 is fixedly connected to the top of the arterial catheter 203, and an arterial side hole 204 is opened on one side of the bottom of the arterial catheter 203.

[0028] Specifically, the arrangement of the venous side hole 202 and the arterial side hole 204 effectively prevents wall absorption.

[0029] In one embodiment, one side of the outer wall of the venous catheter 201 is fixedly connected to one side of the outer wall of the arterial side hole 204, a spiral flow inducer 205 is provided inside the arterial catheter 203, the interior of the venous catheter 201 is communicated with the interior of the venous connecting tube 102, and the interior of the arterial catheter 203 is communicated with the interior of the arterial connecting tube 103.

[0030] Specifically: the blood pressure is swirled by setting the spiral flow inducer 205, and then the blood purified by the dialysis machine is returned to the patient's body through the venous catheter 201 and the venous side hole 202. The blood swirls, which increases the wall shear stress of the inner wall of the arterial cavity and reduces the risk of thrombosis.

[0031] In one embodiment, the inner and outer walls of the venous catheter 201 are sprayed with a copper nanoparticle coating 301, the inner and outer walls of the arterial catheter 203 are sprayed with a copper nanoparticle coating 301, the outer wall of the copper nanoparticle coating 301 is sprayed with a black phosphorus nanocoating 302, and the outer wall of the black phosphorus nanocoating 302 is sprayed with a graphene oxide coating 303.

[0032] Specifically: Through the cooperation between the copper nanoparticle coating 301, the black phosphorus nanocoating 302 and the graphene oxide coating 303, multiple antibacterial mechanisms such as contact sterilization, ion interference, and oxidative stress induction are combined. Through the setting of the black phosphorus nanocoating 302, auxiliary photothermal antibacterial enhancement is achieved in weak light or in vivo environment, bacterial adhesion and biofilm formation are inhibited, while the safety of catheterization is improved and intraoperative complications are reduced.

[0033] Working principle: When the device is in use, the patient's blood enters the interior of the arterial catheter 203 through the bottom of the arterial catheter 203 and the arterial side hole 204, and then enters the interior of the dialysis machine through the connecting block 101 and the arterial connecting tube 103. When entering, the blood pressure is set by the spiral flow inducer 205 to generate rotation, and then the blood purified by the dialysis machine is returned to the patient's body through the venous catheter 201 and the venous side hole 202. The cooperation between the copper nanoparticle coating 301, the black phosphorus nanocoating 302 and the graphene oxide coating 303 has multiple antibacterial mechanisms such as contact sterilization, ion interference, and oxidative stress induction. Through the setting of the black phosphorus nanocoating 302, auxiliary photothermal antibacterial enhancement is achieved in weak light or in vivo environment.

[0034] The above description is merely a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any person skilled in the art may utilize the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification, equivalent change, and modification of the above embodiments made in accordance with the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A dialysis catheter based on swirling flow technology, characterized in that: include: A connecting mechanism (1) comprises a connecting block (101), a venous connecting tube (102) and an arterial connecting tube (103); a catheter mechanism (2) is provided at the bottom of the connecting mechanism (1); the catheter mechanism (2) comprises a venous catheter (201), a venous side hole (202), an arterial catheter (203), an arterial side hole (204) and a spiral flow inducer (205); and nano-coating mechanisms (3) are provided on both the inner wall and the outer wall of the catheter mechanism (2); the nano-coating mechanism (3) comprises a copper nano-particle coating (301) and a black phosphorus nano-coating (302).

2. The dialysis catheter based on swirling flow technology according to claim 1, characterized in that: One side of the top of the connection block (101) is fixedly connected to the bottom of the venous connection tube (102), and the other side of the top of the connection block (101) is fixedly connected to the bottom of the arterial connection tube (103).

3. The dialysis catheter based on swirling flow technology according to claim 2, characterized in that: The bottom of the connecting mechanism (1) is fixedly connected to the top of the venous catheter (201), and a venous side hole (202) is opened on one side of the bottom of the venous catheter (201).

4. The dialysis catheter based on swirling flow technology according to claim 3, characterized in that: The bottom of the connecting mechanism (1) is fixedly connected to the top of the arterial catheter (203), and an arterial side hole (204) is opened on one side of the bottom of the arterial catheter (203).

5. The dialysis catheter based on swirling flow technology according to claim 4, characterized in that: One side of the outer wall of the venous catheter (201) is fixedly connected to one side of the outer wall of the arterial side hole (204), and a spiral flow inducer (205) is provided inside the arterial catheter (203).

6. The dialysis catheter based on swirling flow technology according to claim 1, characterized in that: The interior of the venous catheter (201) is communicated with the interior of the venous connecting tube (102), and the interior of the arterial catheter (203) is communicated with the interior of the arterial connecting tube (103).

7. The dialysis catheter based on swirling flow technology according to claim 6, characterized in that: The inner wall and outer wall of the venous catheter (201) are both sprayed with a copper nanoparticle coating (301), and the inner wall and outer wall of the arterial catheter (203) are both sprayed with a copper nanoparticle coating (301).

8. The dialysis catheter based on swirling flow technology according to claim 1, characterized in that: The outer wall of the copper nanoparticle coating (301) is sprayed with a black phosphorus nanocoating (302), and the outer wall of the black phosphorus nanocoating (302) is sprayed with a graphene oxide coating (303).

9. The dialysis catheter based on swirling flow technology according to claim 1, characterized in that: The operation method is as follows: blood enters the interior of the arterial catheter (203) through the bottom of the arterial catheter (203) and the arterial side hole (204), and enters the interior of the dialysis machine through the connecting block (101) and the arterial connecting tube (103). When entering, the blood pressure generates a vortex through the setting of the spiral flow inducer (205). The blood purified by the dialysis machine is returned to the patient's body through the venous catheter (201) and the venous side hole (202). Through the cooperation between the copper nanoparticle coating (301), the black phosphorus nanocoating (302) and the graphene oxide coating (303), multiple antibacterial mechanisms such as contact sterilization, ion interference, and oxidative stress induction are combined. Through the setting of the black phosphorus nanocoating (302), auxiliary photothermal antibacterial enhancement is achieved.

Images