Disposable hemodialysis catheter

Abstract

The invention relates to a disposable hemodialysis catheter which is composed of a spindle-shaped head tube, a long and thin round tube, a boss fixing ring, two inverted-V-shaped exposed end round tubes, exposed end round tube threads and a buckle. The disposable hemodialysis catheter is characterized in that the head of the front end of the disposable hemodialysis catheter is a spindle-shaped head tube, and the other end of the spindle-shaped head tube is connected with a slender circular tube; the spindle-shaped head tube and the slender circular tube are integrated; a partition is arranged in the middle of the long and thin round pipe to divide the long and thin round pipe into two parts, and the partition in the middle and the partition in the middle of the long and thin round pipe are integrated; a main cavity pipe of the spindle-shaped head pipe is formed on one side of the spindle-shaped head pipe, and a side pipe of the spindle-shaped head pipe is arranged on the other side of the spindle-shaped head pipe. Due to the special structure of the spindle-shaped head tube of the disposable hemodialysis catheter, when the disposable hemodialysis catheter is inserted into a blood vessel, the disposable hemodialysis catheter is not prone to adhering to the wall of the blood vessel, and the catheter is not prone to being blocked all the time in the hemodialysis process.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a disposable hemodialysis catheter. Background Art

[0002] The front end of the traditional hemodialysis catheter currently used in clinical medicine is a slender circular tube for inserting into a blood vessel. A partition is provided in the middle of the lumen of the slender circular tube to divide the lumen into two, and a hole is provided in the front of each of the two lumens; the rear end of the slender circular tube is connected to a boss fixing ring, and the other end of the boss fixing ring is connected to two ∧-shaped exposed end circular tubes, and the other end of the exposed end circular tube has a heparin cap sealing tube connection thread.

[0003] During hemodialysis treatment, after the hemodialysis catheter is inserted into the blood vessel, the holes on both sides of the slender circular tube often stick to the wall, resulting in obstruction of the lumen and frequent tube blockage. Tube blockage not only interrupts the hemodialysis process and affects the treatment effect, but may also pose a serious threat to the patient's health due to problems such as poor blood reflux, such as inducing thrombosis and increasing the risk of infection. Therefore, there is an urgent need to improve the structure of traditional hemodialysis tubes to solve the problem of tube blockage. Summary of the invention

[0004] In order to overcome the shortcomings of current hemodialysis catheters, the present invention provides a disposable hemodialysis catheter that is less likely to cause tube blockage.

[0005] The technical solution solved by the present invention is: a disposable hemodialysis catheter, which consists of a spindle-shaped head tube, a main cavity tube of the spindle-shaped head tube, a main flow hole of the main cavity tube of the spindle-shaped head tube, a side hole of the main cavity tube of the spindle-shaped head tube, a side tube of the spindle-shaped head tube, a side hole of the side tube of the spindle-shaped head tube, a slender circular tube, a main cavity tube of the slender circular tube, a side tube of the slender circular tube, a boss fixing ring, a boss fixing ring cavity, a left-side exposed end circular tube, a left-side exposed end circular tube buckle, a left-side exposed end circular tube connecting thread, a right-side exposed end circular tube, a right-side exposed end circular tube buckle, a right-side exposed end circular tube connecting thread, a boss fixing ring cavity, a left-side exposed end circular tube cavity, and a cavity of a right-side exposed end circular tube.

[0006] The invention is characterized in that: the head at the front end of the disposable hemodialysis catheter is a spindle-shaped head tube, and the other end of the spindle-shaped head tube is connected to the slender round tube; the spindle-shaped head tube and the slender round tube are integrated; there is a partition in the middle to divide it into two, and the partition in the middle and the partition in the middle part of the slender round tube are also integrated; one side of the spindle-shaped head tube forms the main cavity tube of the spindle-shaped head tube, and the other side is the side tube of the spindle-shaped head tube.

[0007] One side of the main cavity of the spindle-shaped head tube and the two arc-shaped parts of the spindle-shaped head tube have side hole I of the main cavity of the spindle-shaped head tube and side hole II of the main cavity of the spindle-shaped head tube respectively; the side tube of the spindle-shaped head tube on the other side and the two arc-shaped parts of the spindle-shaped head tube on the other side have side hole I of the side tube of the spindle-shaped head tube and side hole II of the side tube of the spindle-shaped head tube respectively.

[0008] According to the disposable hemodialysis catheter described above, the feature is that the volume of the main cavity tube of the spindle-shaped head tube: the volume of the side tube of the spindle-shaped head tube is 1.05:1.

[0009] The beneficial effect of the present invention is that due to the special structure of the spindle-shaped head tube of the disposable hemodialysis catheter, one side of the main cavity of the spindle-shaped head tube and the two arc-shaped parts of the spindle-shaped head tube respectively have the side hole I of the main cavity of the spindle-shaped head tube and the side hole II of the main cavity of the spindle-shaped head tube; the side tube of the spindle-shaped head tube on the other side and the two arc-shaped parts of the spindle-shaped head tube on the other side respectively have the side hole I of the side tube of the spindle-shaped head tube and the side hole II of the side tube of the spindle-shaped head tube, when the disposable hemodialysis catheter is inserted into the blood vessel, it is not easy to adhere to the blood vessel wall, and the tube is not easy to be blocked during the hemodialysis process.

[0010] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the main structure of the present invention; Figure 2 A schematic diagram of the main cross-sectional structure of the present invention.

[0012] Figure 1-2 Among them, 1. spindle-shaped head tube, 2. side hole I of the main cavity tube of the spindle-shaped head tube, 3. main flow hole of the main cavity tube of the spindle-shaped head tube, 4. side hole II of the main cavity tube of the spindle-shaped head tube, 5. side hole I of the side tube of the spindle-shaped head tube, 6. side hole II of the side tube of the spindle-shaped head tube, 7. slender round tube, 8. boss fixing ring, 9. left side exposed end round tube, 10. exposed end round tube buckle, 11. right side exposed end round tube, 12. side exposed end round tube buckle, 13. left side exposed end round tube external connecting tube sleeve, 14. right side exposed end round tube external connecting tube sleeve, 15. main cavity tube of the spindle-shaped head tube, 16. side tube of the spindle-shaped head tube, 17. partition in the middle part of the slender round tube, 18. boss fixing ring lumen, 19. left side exposed end round tube lumen, 20. right side exposed end round tube lumen. DETAILED DESCRIPTION

[0013] Example 1: See Figure 1-2The present invention is a disposable hemodialysis catheter, which consists of a spindle-shaped head tube 1, a main cavity tube 2 of the spindle-shaped head tube, a main flow hole 3 of the main cavity tube of the spindle-shaped head tube, a side hole 4 of the main cavity tube of the spindle-shaped head tube, a side tube 5 of the spindle-shaped head tube, a side hole 6 of the side tube of the spindle-shaped head tube, an elongated circular tube 7, a main cavity tube 8 of the elongated circular tube, a side tube 9 of the elongated circular tube, a boss fixing ring 10, a boss fixing ring cavity 11, a left side exposed end circular tube 12, a left side exposed end circular tube buckle 13, a left side exposed end circular tube connecting thread 14, a right side exposed end circular tube 15, a right side exposed end circular tube buckle 16, a right side exposed end circular tube connecting thread 17, a boss fixing ring cavity 18, a left side exposed end circular tube cavity 19, and a cavity 20 of the right side exposed end circular tube.

[0014] The invention is characterized in that: the head of the front end of the disposable hemodialysis catheter is a spindle-shaped head tube 1, and the other end of the spindle-shaped head tube 1 is connected to the slender round tube 7; the spindle-shaped head tube 1 and the slender round tube 7 are integrated; there is a partition in the middle to divide it into two, and the partition in the middle and the partition 17 in the middle part of the slender round tube are also integrated; one side of the spindle-shaped head tube 1 forms the main cavity tube 15 of the spindle-shaped head tube, and the other side is the side tube 16 of the spindle-shaped head tube.

[0015] One side of the main cavity 15 of the spindle-shaped head tube and the two arc-shaped parts of the spindle-shaped head tube 1 have side holes Ⅰ2 of the main cavity of the spindle-shaped head tube and side holes Ⅱ4 of the main cavity of the spindle-shaped head tube respectively; the side tube 16 of the spindle-shaped head tube on the other side and the two arc-shaped parts of the spindle-shaped head tube 1 on the other side have side holes Ⅰ5 of the side tube of the spindle-shaped head tube and side holes Ⅱ6 of the side tube of the spindle-shaped head tube respectively.

[0016] According to the disposable hemodialysis catheter described above, the feature is that the volume of the main cavity tube 15 of the spindle-shaped head tube: the volume of the side tube 16 of the spindle-shaped head tube is 1.05:1.

Claims

1. A disposable hemodialysis catheter, comprising a spindle-shaped head tube (1), a main lumen tube (2) of the spindle-shaped head tube, a main flow hole (3) of the main lumen tube of the spindle-shaped head tube, a side hole (4) of the main lumen tube of the spindle-shaped head tube, a side tube (5) of the spindle-shaped head tube, a side hole (6) of the side tube of the spindle-shaped head tube, an elongated circular tube (7), a main lumen tube (8) of the elongated circular tube, a side tube (9) of the elongated circular tube, a boss fixing ring (10), a boss fixing ring lumen (11), a left side exposed end circular tube (12), a left side exposed end circular tube buckle (13), a left side exposed end circular tube connecting thread (14), a right side exposed end circular tube (15), a right side exposed end circular tube buckle (16), a right side exposed end circular tube connecting thread (17), a boss fixing ring lumen (18), a left side exposed end circular tube lumen (19), and a right side exposed end circular tube lumen (20); Features: The head portion at the front end of the disposable hemodialysis catheter is a spindle-shaped head tube (1), and the other end of the spindle-shaped head tube (1) is connected to a slender round tube (7); the spindle-shaped head tube (1) and the slender round tube (7) are integrated into one body; A partition is provided in the middle to divide the tube into two parts, and the partition in the middle is also integral with the partition (17) in the middle of the elongated circular tube; one side of the hammer-shaped head tube (1) forms a main cavity tube (15) of the hammer-shaped head tube, and the other side is a side tube (16) of the hammer-shaped head tube; One side of the main cavity tube (15) of the spindle-shaped head tube and the two arc-shaped parts of the spindle-shaped head tube (1) respectively have a side hole I (2) of the main cavity tube of the spindle-shaped head tube and a side hole II (4) of the main cavity tube of the spindle-shaped head tube; the side tube (16) of the spindle-shaped head tube on the other side and the two arc-shaped parts of the spindle-shaped head tube (1) on the other side have a side hole I (5) of the side tube of the spindle-shaped head tube and a side hole II (6) of the side tube of the spindle-shaped head tube.

2. A disposable hemodialysis catheter according to claim 1, characterized in that: The ratio of the main lumen tube (15) of the spindle-shaped head tube to the side tube (16) of the spindle-shaped head tube is 1.02:1.

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