CN110559498B - A new type of dialysis catheter with a water bag - Google Patents

Abstract

The invention discloses a novel dialysis catheter with a water sac, which comprises a vessel, a water inlet pipe, a regulator and a roller, wherein the vessel comprises an arterial tube and a venous tube, the arterial tube and the venous tube are mutually adhered together, the inside of the vessel is provided with a pipe wall, the pipe wall is provided with a pipeline, the inside of the pipeline is inserted with the water inlet pipe, and one end of the water inlet pipe is provided with a pressurizing sac; at the moment, the winding roller is stirred, and the winding roller winds the winding strip, so that the limit ball is driven to move to one end of the regulator and extrude the water inlet pipe, and the blocking of the arterial tube and the venous tube is completed; compared with the prior art, the two water bags are arranged, after the dialysis is finished, the vascular can be blocked, and the thromboembolism opportunity of a patient in the long-term tube carrying process is reduced, so that the pain of the patient is reduced, and the economic burden of the patient is reduced; the scheme is convenient for medical staff to operate, improves the curative effect of dialysis, reduces the damage of repeated tube placement to the blood vessel of the patient, and improves the satisfaction degree of the patient.

Description

A new type of dialysis catheter with a water bag

Technical Field

The invention relates to the technical field of medical devices, in particular to a novel dialysis catheter with a water bag.

Background technique

Hemodialysis is one of the renal replacement therapies for patients with acute and chronic renal failure. During the process of wearing a catheter, the patient squeezes out the sealing fluid when moving, and blood flows into the catheter, which often causes thrombosis and reduces the flow rate, seriously affecting the service life of the catheter and the dialysis effect. The catheter needs to be replaced, and the catheter itself is hard, which can easily cause vascular wall damage and phlebitis after long-term use. Therefore, it is necessary to design a new type of dialysis catheter to reduce the chance of thromboembolism during long-term use of the catheter, thereby reducing the patient's pain and reducing the patient's economic burden. To this end, we provide a new type of dialysis catheter with a water bag to solve the problems raised in the above background technology.

Summary of the invention

The purpose of the present invention can be achieved through the following technical scheme: a new type of dialysis catheter with a water bag, comprising a vascular tube, a water inlet pipe, a regulator and a roller, the vascular tube comprising an arterial tube and a venous tube, the arterial tube and the venous tube are bonded together, a tube wall is provided inside the vascular tube, a pipeline is provided on the tube wall, a water inlet pipe is inserted inside the pipeline, a pressure bag is provided at one end of the water inlet pipe, and an arterial side water bag and a venous side water bag are provided at the other end, the arterial side water bag is located inside the arterial tube, the venous side water bag is located inside the venous tube, the water inlet pipe is located at one end of the outer side of the vascular tube and movably penetrates the regulator, a roller is rotatably provided on the regulator, a winding strip is wound on the roller, one end of the winding strip is inserted into the interior of the regulator, and a limiting ball is provided at the end thereof, the limiting ball is movably arranged inside the regulator, when the limiting ball moves to one end of the regulator, the limiting ball squeezes the water inlet pipe, and the water inlet pipe is closed at this time.

Preferably, the length of the venous tube is longer than that of the arterial tube, a groove is provided at one end of the tube wall, a latex block is provided on the groove, the two latex blocks are located on different sides, and the arterial side water bag is located inside the latex block on the arterial tube, and the venous side water bag is located inside the latex block on the venous tube.

Preferably, a connecting tube is provided at the end of the vascular tube, a swivel is rotatably provided on the connecting tube, and a fixed wing is provided on the outer side of the swivel.

Preferably, a connecting seat is provided at the end of the connecting tube, and the connecting seat is provided with three interfaces in a "Y" shape, and a first extension tube and a second extension tube are respectively inserted at one end of the connecting seat, and one end of the first extension tube and the second extension tube are clamped with a Luer connector, wherein one end of the first extension tube is connected to the arterial tube, and one end of the second extension tube is connected to the venous tube.

Preferably, the inner cavity of the regulator is provided with symmetrically distributed inner limit blocks, the water inlet pipe is located between the two inner limit blocks, the outer side of the regulator is welded with an outer limit block, and the roller is rotatably arranged between the outer limit blocks.

Preferably, the cross-sectional shape of the regulator is a trapezoid, an inclined sliding groove is provided inside the regulator, and a symmetrical sliding block is provided on the outer side of the limiting ball, and the end of the sliding block is slidably inserted in the sliding groove.

Preferably, a guide rod is provided at the end of the regulator with a smaller opening, and one end of the winding strip passes around the guide rod.

Beneficial effects of the present invention:

1. At this time, the roller is turned, and the roller winds up the winding strip, thereby driving the limit ball to move to one end of the regulator and squeeze the water inlet pipe to complete the blocking of the arterial tube and the venous tube;

2. Compared with the existing technology, this solution sets two water bags, which can block the blood vessels after dialysis, reduce the chance of thrombus embolism during long-term tube wearing, thereby reducing the pain of patients and reducing the economic burden of patients;

3. This solution is convenient for medical staff to operate, improves the efficacy of dialysis, reduces the damage to patients' blood vessels caused by repeated catheterization, and improves patient satisfaction.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of the structure of the present invention;

FIG2 is a schematic diagram of the connection between the water inlet pipe and the regulator of the present invention;

FIG3 is a schematic cross-sectional view of the regulator of the present invention;

FIG4 is a schematic diagram of the connection between the water inlet pipe and the pulse tube of the present invention;

FIG5 is a schematic diagram of the connection between the water inlet pipe and the water bag of the present invention;

FIG. 6 is a schematic diagram of the connection between the water bag and the blood vessel of the present invention.

In the figure: 1 vascular tube, 11 tube wall, 12 pipeline, 13 latex stopper, 14 connecting tube, 15 arterial tube, 16 venous tube, 2 connecting seat, 21 fixed wing, 3 first extension tube, 4 second extension tube, 5 Luer joint, 6 water inlet pipe, 61 pressurized bag, 62 arterial side water bag, 63 venous side water bag, 7 regulator, 71 inner side limit block, 72 slide groove, 73 guide rod, 74 outer side limit block, 8 roller, 81 winding strip, 82 limit ball, 821 slider.

Detailed ways

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.

Please refer to Figures 1-6. The present invention provides a technical solution: a new type of dialysis catheter with a water bag, including a blood vessel 1, a water inlet pipe 6, a regulator 7 and a roller 8. The blood vessel 1 includes an arterial tube 15 and a venous tube 16. The arterial tube 15 and the venous tube 16 are bonded together and both have a hollow semicircular structure. The blood vessel 1 is provided with a tube wall 11 inside. The tube wall 11 is located in the middle of its cross-sectional circle. A pipe 12 is provided on the tube wall 11. The pipe 12 is a hollow natural latex tube. The water inlet pipe 6 is inserted inside the pipe 12. The water inlet pipe 6 is also made of natural latex. The diameter of the water inlet pipe 6 is 1 mm. A pressure-filling bag 61 is arranged at one end of the water inlet pipe 6. The interior of the pressure-filling bag 61 is filled with physiological saline. An arterial side water bag 62 and a venous side water bag 63 are arranged at the other end. When the pressure-filling bag 61 is pressurized, the water in the pressure-filling bag 61 finally enters the arterial side water bag 62 and the venous side water bag 63 through the water inlet pipe 6 and expands them. The arterial side water bag 62 is located inside the arterial tube 15, and the venous side water bag 63 is located inside the venous tube 16. When water is injected, the volumes of the arterial side water bag 62 and the venous side water bag 63 increase, so that the arterial tube can be 15 and the pores of the venous tube 16 are blocked to prevent blood from flowing back. The water inlet pipe 6 is located on one end outside the blood vessel 1 and movably penetrates the regulator 7. A roller 8 is rotatably provided on the regulator 7. A winding strip 81 is wound on the roller 8. One end of the winding strip 81 is inserted into the inside of the regulator 7, and a limiting ball 82 is provided at the end thereof. The limiting ball 82 is movably arranged in the inside of the regulator 7. When the limiting ball 82 moves to one end of the regulator 7, the limiting ball 82 squeezes the water inlet pipe 6. At this time, the water inlet pipe 6 is closed. After the dialysis is finished, the roller 8 is moved, the winding strip 81 is released, and moves forward. Push the regulator 7 so that the limiting ball 82 inside the regulator 7 moves away from one end thereof, and the water in the water inlet pipe 6 is pressurized and flows back to the inside of the pressure bag 61; after the dialysis is finished and the conventional anticoagulant tube is sealed, the pressure bag 61 is squeezed, and the water in the pressure bag 61 enters the arterial side water bag 62 and the venous side water bag 63 and expands to block the corresponding arterial tube 15 and venous tube 16. At this time, the roller 8 is moved, and the roller 8 winds up the winding strip 81, thereby driving the limiting ball 82 to move to one end of the regulator 7 and squeeze the water inlet pipe 6, completing the blocking of the arterial tube 15 and the venous tube 16. Compared with the prior art, this solution, by setting two water bags, can block the blood vessel 1 after the dialysis is finished, reduce the chance of thromboembolism in the patient during the long-term tube wearing process, thereby reducing the patient's pain and reducing the patient's economic burden; in addition, this solution is convenient for medical staff to operate, improve the efficacy of dialysis, reduce the damage to the patient's blood vessels caused by repeated catheterization, and improve patient satisfaction.

The length of the venous tube 16 is longer than that of the arterial tube 15. A groove is provided at one end of the tube wall 11, and a latex stopper 13 is provided on the groove. The two latex stoppers 13 are located on different sides. The latex stopper 13 on the arterial tube 15 is located on the side of the tube wall 11 inside the venous tube 16. The latex stopper 13 on the venous tube 16 is located on the outer side of the end of the tube wall 11 that is longer than the arterial tube 15. The arterial side water bag 62 is located on the inner side of the latex stopper 13 on the arterial tube 15, and the venous side water bag 63 is located on the inner side of the latex stopper 13 on the venous tube 16.

A connecting tube 14 is provided at the end of the vascular tube 1 . A swivel is rotatably provided on the connecting tube 14 . A fixing wing 21 is provided on the outer side of the swivel for fixing the position of the vascular tube 1 .

A connecting seat 2 is provided at the end of the connecting tube 14, and the connecting seat 2 is provided with three interfaces in a "Y" shape. A first extension tube 3 and a second extension tube 4 are respectively inserted at one end of the connecting seat 2, and a Luer connector 5 is clamped at one end of the first extension tube 3 and the second extension tube 4, wherein one end of the first extension tube 3 is connected to the arterial tube 15, and one end of the second extension tube 4 is connected to the venous tube 16.

The inner cavity of the regulator 7 is provided with symmetrically distributed inner limit blocks 71. The inner limit blocks 71 are made of natural rubber and do not generate friction with the water inlet pipe 6. The water inlet pipe 6 is located between the two inner limit blocks 71. The outer side of the regulator 7 is welded with an outer limit block 74, and the roller 8 is arranged between the outer limit blocks 74 by rotating the rotating shaft.

The cross-sectional shape of the regulator 7 is a trapezoid, and an inclined slide groove 72 is provided inside the regulator 7 . A symmetrical slider 821 is provided on the outer side of the limiting ball 82 , and the end of the slider 821 is slidably inserted in the slide groove 72 .

A guide rod 73 is provided at the end of the regulator 7 with a smaller opening, and one end of the winding strip 81 passes around the guide rod 73 to reduce the friction of the winding strip.

In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims (4)

1. The utility model provides a novel dialysis catheter with water pocket, includes vessel (1), inlet tube (6), regulator (7) and roller (8), and vessel (1) is including artery (15) and vein pipe (16), and artery (15) and vein pipe (16) bond each other together, and all are hollow semicircle column structure, characterized in that, the inside of vessel (1) is equipped with pipe wall (11), and pipe wall (11) are located the middle part of its cross-section circle, are equipped with pipeline (12) on pipe wall (11), and the inside of pipeline (12) is inserted and is equipped with inlet tube (6), and one end of inlet tube (6) is equipped with pressure bag (61), is equipped with arterial side water bag (62) and vein side water bag (63) on the other end, and arterial side water bag (62) are located the inside of artery (15), and vein side water bag (63) are located the inside of vein pipe (16), and inlet tube (6) are located the one end on the outside of vessel (1) and are movable run through regulator (7), rotate on regulator (7) and are equipped with roller (8), and the winding up is equipped with on roller (8) and is equipped with balloon (81) inside the inside of regulator (7) and the end of stopper (82) is located at the end of the regulator (81), when the limiting ball (82) moves to one end of the regulator (7), the limiting ball (82) extrudes the water inlet pipe (6), and at the moment, the water inlet pipe (6) is closed;

An inner limiting block (71) which is symmetrically distributed is arranged in an inner cavity of the regulator (7), the water inlet pipe (6) is positioned between the two inner limiting blocks (71), an outer limiting block (74) which is symmetrically distributed is welded on the outer side of the regulator (7), and the winding roller (8) is rotatably arranged between the outer limiting blocks (74) which are symmetrically distributed;

the cross section of the regulator (7) is trapezoid, the inner side wall of the regulator is symmetrically provided with a chute (72) which is obliquely arranged, the outer side of the limiting ball (82) is provided with a symmetrical sliding block (821), and the tail end of the sliding block (821) is slidably inserted into the chute (72);

one end of the regulator (7) with a smaller opening is provided with a guide rod (73), and one end of the winding strip (81) bypasses the guide rod (73).

2. The novel dialysis catheter with the water bag according to claim 1, wherein the length of the venous tube (16) is longer than that of the arterial tube (15), a slot is formed in one end of the tube wall (11), latex stoppers (13) are arranged on the slot, the two latex stoppers (13) are located on different sides, the arterial side water bag (62) is located on the inner side of the latex stoppers (13) on the arterial tube (15), and the venous side water bag (63) is located on the inner side of the latex stoppers (13) on the venous tube (16).

3. A new dialysis catheter with a water sac according to claim 1, characterized in that the end of the vessel (1) is provided with a connecting tube (14), the connecting tube (14) is rotatably provided with a swivel, the outside of which is provided with a fixing wing (21).

4. A novel dialysis catheter with water sac according to claim 3, characterized in that the end of the connecting tube (14) is provided with a connecting seat (2), the connecting seat (2) is provided with three interfaces and is in a shape of 'Y', one end of the connecting seat (2) is respectively inserted with a first extension tube (3) and a second extension tube (4), one ends of the first extension tube (3) and the second extension tube (4) are connected with a luer connector (5) in a clamping manner, one end of the first extension tube (3) is communicated with an arterial tube (15), and one end of the second extension tube (4) is communicated with a venous tube (16).