Auxiliary equipment for artificial blood vessel dilation

Abstract

The utility model discloses auxiliary equipment for artificial blood vessel dilatation, which comprises a base, a mounting plate is fixedly arranged at the upper end of the base, a pressure pump is fixedly arranged on the upper surface of the base, a switching cylinder is fixedly arranged on the upper surface of the mounting plate, a switching mechanism is arranged in the switching cylinder, and the switching mechanism is arranged on the upper surface of the mounting plate. The operation process is simplified through the design of pressing rotation. According to the auxiliary equipment for artificial blood vessel dilatation, the output pressure of the pressurizing pipe is monitored by arranging the detection box on the mounting plate and rotating the switching wheel in the detection box in cooperation with supporting of springs with different rigidities on the piston plate, and the stability of the output pressure is guaranteed by adjusting the pressure pump and secondarily monitoring the detection box; by means of the mode that the pressing plate is extruded downwards and rotated, the two switching pipes can communicate the pressure reducing pipe and the pressure increasing pipe with the connecting pipe through rotation, then a complex opening structure is omitted, and the device is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of arteriovenous fistula surgery, in particular to an auxiliary device for artificial blood vessel dilation. Background Art

[0002] The main complications of arteriovenous fistula are stenosis and thrombosis. In the prior art, the treatment method for fistula stenosis and thrombosis is generally to use balloon dilatation to expand the narrow part of the fistula to ensure blood flow during thrombus dialysis. During the operation, the doctor sends a vascular balloon into the patient's body through a catheter, uses high-pressure gas to lightly press the balloon on the patient's narrow blood vessel wall, and expands the blood vessel wall through the application of external force, thereby helping to unclog the blood vessels and relieve symptoms such as thrombosis. However, when performing vascular balloon dilatation, the output power of the pressure pump needs to be adjusted according to the tolerance of patients of different age groups. Once the adjustment is wrong, it is likely to cause blood vessel rupture. Utility Model Content

[0003] The utility model aims to provide an auxiliary device for artificial blood vessel dilation, so as to solve the problem of blood vessel rupture caused by improper pressure pump regulation proposed in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary device for artificial blood vessel dilation, comprising a base, a mounting plate fixedly provided on the upper end of the base, a pressure pump fixedly provided on the upper surface of the base, a switching cylinder fixedly provided on the upper surface of the mounting plate, a pressure reducing pipe and a pressure increasing pipe respectively connected between the outer surfaces of both sides of the switching cylinder and the air inlet and outlet of the pressure pump, and a connecting pipe connected to the outer surface of one side of the switching cylinder, a switching mechanism is provided inside the switching cylinder, and the operation process is simplified by the design of pressing and rotating.

[0005] Preferably, the switching mechanism includes: a switching disk, which is rotatably installed inside the switching cylinder, and a switching tube is provided on the upper surface of the switching disk, a sliding pressing plate is provided at the upper end of the switching disk, and a clamping rod is fixedly provided on the lower surface of the pressing plate, and a clamping groove is provided on the inner surface of the switching cylinder.

[0006] By adopting the above technical solution, the switching disk can change the connection state between the pressure reducing pipe, the pressure increasing pipe and the connecting pipe by rotating.

[0007] Preferably, a sliding tension wheel is installed at the lower end of the mounting plate, and a rotating guide wheel is embedded on the upper surface of the mounting plate, and one end of the connecting tube passes around the bottom of the tension wheel.

[0008] By adopting the above technical solution, the connecting pipe can be tightened by the tensioning wheel to avoid dragging on the ground.

[0009] Preferably, a pressure monitoring mechanism is fixedly provided on the upper surface of the mounting plate, and the upper limit of detection is adjusted by springs of different stiffnesses.

[0010] By adopting the above technical solution, springs with different stiffness can adjust the pressure inside the pressure chamber when the piston plate triggers the contact block by applying a pulling force to the piston plate.

[0011] Preferably, the pressure monitoring mechanism includes: a detection box, which is fixedly arranged on the upper surface of the base, and a controller is fixedly installed on the outer surface of the upper end of the detection box, a rotating switching wheel is installed inside the detection box, and the rotating shaft of the switching wheel passes through the outer surface of the detection box, and a switching button is fixedly arranged at one end of the rotating shaft of the switching wheel, a pressure chamber is opened on the side surface of the switching wheel, and a piston plate is arranged inside the pressure chamber, and a contact block is fixedly arranged on the inner surface of one end of the pressure chamber facing the outside of the switching wheel, and a pressure relief port is opened on the outer surface of the detection box.

[0012] By adopting the above technical solution, when the pressure is too high, the controller can send an electrical signal to stop the pressure pump from outputting.

[0013] Preferably, the outer surface of the switching disk fits with the inner surface of the switching tube, the angle between the two switching tubes is the same as the angle between adjacent clamping rods, and the clamping rods are clamped and installed in the clamping grooves, and a spring is connected between the pressing plate and the switching disk.

[0014] By adopting the above technical solution, the pressing plate will not rotate randomly when the clamping rod is engaged with the clamping slot.

[0015] Preferably, the side surfaces at both ends of the detection box are penetrated by a pressurized tube, the outer surface of the switching wheel is in contact with the inner surface of the detection box, the outer surface of the switching button is provided with an arrow-shaped groove, the outer surface of the detection box is provided with a scale groove, the piston plate and the pressure chamber are connected by sliding friction, and a spring is connected between the piston plate and the pressure chamber, and the spring stiffness between the piston plate and the pressure chamber is different.

[0016] By adopting the above technical solution, when the internal pressure of the detection box is too large, the piston plate can contact the contact block so that the contact blocks on both sides are connected to send an electrical signal to the controller.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the auxiliary device for artificial blood vessel dilation:

[0018] 1. By setting a detection box on the mounting plate, using the rotation of the switching wheel in the detection box, and supporting the piston plate with springs of different stiffness, the output pressure of the pressurized pipe can be monitored, and the stability of the output pressure can be ensured by adjusting the pressure pump and secondary monitoring of the detection box;

[0019] 2. Furthermore, by pressing the pressing plate downward and rotating it, the two switching tubes can respectively connect the pressure reducing tube and the pressure increasing tube with the connecting tube by rotating, thereby eliminating the complicated opening structure and facilitating the use of the equipment;

[0020] 3. Furthermore, the gravity of the tensioning wheel drives the connecting pipe downward, so that the connecting pipe can be kept in a tensioned state during the working process to avoid the situation where the connecting pipe is too long and falls to the ground and is polluted. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection between the mounting plate and the tensioning wheel of the utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the overall cutaway surface of the utility model;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the cross-section surface connecting the switching disk and the switching tube of the utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the cross-section surface of the connection between the installation plate and the detection box of the utility model;

[0026] Figure 6 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0027] Figure 7 For this utility model Figure 5 Enlarged structural diagram at B in the middle.

[0028] In the figure: 1. base; 2. mounting plate; 3. pressure pump; 4. switching cylinder; 5. pressure reducing pipe; 6. pressurizing pipe; 7. connecting pipe; 8. switching disk; 9. switching pipe; 10. pressing plate; 11. clamping rod; 12. clamping slot; 13. tensioning wheel; 14. guide wheel; 15. detection box; 16. controller; 17. switching wheel; 18. switching button; 19. pressure chamber; 20. piston plate; 21. contact block; 22. pressure relief port. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-7 The utility model provides a technical solution: an auxiliary device for artificial blood vessel dilation, comprising a base 1, a mounting plate 2 is fixedly arranged on the upper end of the base 1, a pressure pump 3 is fixedly arranged on the upper surface of the base 1, a switching cylinder 4 is fixedly arranged on the upper surface of the mounting plate 2, a pressure reducing pipe 5 and a pressure increasing pipe 6 are respectively connected between the outer surfaces of both sides of the switching cylinder 4 and the air inlet and outlet of the pressure pump 3, and a connecting pipe 7 is connected to the outer surface of one side of the switching cylinder 4, and a switching mechanism is arranged inside the switching cylinder 4, and the operation process is simplified by the design of pressing and rotating;

[0031] The switching mechanism includes: a switching disk 8, which is rotatably mounted inside the switching cylinder 4, and a switching tube 9 is provided on the upper surface of the switching disk 8, a sliding pressing plate 10 is provided on the upper end of the switching disk 8, and a clamping rod 11 is fixedly provided on the lower surface of the pressing plate 10, a clamping groove 12 is provided on the inner surface of the switching cylinder 4, the outer surface of the switching disk 8 is fitted with the inner surface of the switching cylinder 4, the angle between the two switching tubes 9 is the same as the angle between the adjacent clamping rods 11, and the clamping rod 11 is clamped and installed with the clamping groove 12, and a spring is connected between the pressing plate 10 and the switching disk 8;

[0032] When in use, start the pressure pump 3 on the base 1, and the pressure pump 3 outputs pressure through the pressurized tube 6, pressing the pressing plate 10 inside the switching cylinder 4 on the surface of the mounting plate 2 so that the pressing plate 10 drives the clamping rod 11 to disengage from the engagement with the clamping groove 12. At this time, the pressing plate 10 is rotated through the switching tube 9 on the upper surface of the switching disk 8 so that one end of the pressurized tube 6 is connected with the connecting tube 7 through the switching tube 9. At this time, the connecting tube 7 outputs pressure outward to expand the balloon to work. After the work is completed, the above process is repeated so that the decompression tube 5 is connected with the connecting tube 7 to realize the contraction of the balloon.

[0033] A sliding tensioning wheel 13 is installed at the lower end of the mounting plate 2, and a rotating guide wheel 14 is embedded on the upper surface of the mounting plate 2. One end of the connecting tube 7 passes under the tensioning wheel 13. During use, when the connecting tube 7 is long, the tensioning wheel 13 slides downward, driving the lower end of the connecting tube 7 to slide downward under the guidance of the guide wheel 14, so that one end of the longer connecting tube 7 will not fall to the ground.

[0034] A pressure monitoring mechanism is fixedly arranged on the upper surface of the mounting plate 2, and the upper detection limit is adjusted by springs of different stiffnesses. The pressure monitoring mechanism includes: a detection box 15, which is fixedly arranged on the upper surface of the base 1, and a controller 16 is fixedly installed on the upper outer surface of the detection box 15, a rotating switching wheel 17 is installed inside the detection box 15, and the rotating shaft of the switching wheel 17 passes through the outer surface of the detection box 15, and a switching button 18 is fixedly arranged at one end of the rotating shaft of the switching wheel 17, a pressure chamber 19 is opened on the side surface of the switching wheel 17, and a piston plate 20 is arranged inside the pressure chamber 19, A contact block 21 is fixedly arranged on the inner surface of one end of the pressure chamber 19 facing the outside of the switching wheel 17, a pressure relief port 22 is provided on the outer surface of the detection box 15, and the two end side surfaces of the detection box 15 are penetrated by the pressurized tube 6. The outer surface of the switching wheel 17 fits the inner surface of the detection box 15, an arrow-shaped groove is provided on the outer surface of the switching button 18, and a scale groove is provided on the outer surface of the detection box 15. The piston plate 20 and the pressure chamber 19 are connected by sliding friction, and a spring is connected between the piston plate 20 and the pressure chamber 19, and the spring stiffness of the connection between the piston plate 20 and the pressure chamber 19 is different;

[0035] Before work, the switch wheel 17 is driven to rotate inside the detection box 15 by the switch button 18 until the arrow groove on the surface of the switch button 18 is aligned with the appropriate scale on the surface of the detection box 15. At this time, when the pressurized tube 6 outputs pressure, as the pressure increases, the piston plate 20 in the pressure chamber 19 slides under the action of pressure and stretches the spring between the pressure chamber 19. When the pressure is too high, the piston plate 20 slides and contacts the contact block 21. The connected contact block 21 sends an electrical signal to the controller 16. The controller 16 controls the pressure pump 3 to stop working to prevent excessive pressure. The pressure relief port 22 ensures that the piston plate 20 will not be unable to slide under the action of pressure during the sliding process of the piston plate 20.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for artificial blood vessel dilation, comprising a base (1), a mounting plate (2) fixedly arranged at the upper end of the base (1), a pressure pump (3) fixedly arranged on the upper surface of the base (1), a switching cylinder (4) fixedly arranged on the upper surface of the mounting plate (2), a pressure reducing pipe (5) and a pressure increasing pipe (6) respectively connected between the outer surfaces of both sides of the switching cylinder (4) and the air inlet and outlet of the pressure pump (3), and a connecting pipe (7) connected to the outer surface of one side of the switching cylinder (4), characterized in that: A switching mechanism is arranged inside the switching cylinder (4), and the operation process is simplified by a pressing and rotating design.

2. The auxiliary device for artificial blood vessel dilation according to claim 1, characterized in that: The switching mechanism comprises: a switching disk (8), the switching disk (8) is rotatably mounted inside a switching cylinder (4), and a switching tube (9) is provided on the upper surface of the switching disk (8), a sliding pressing plate (10) is provided at the upper end of the switching disk (8), and a clamping rod (11) is fixedly provided on the lower surface of the pressing plate (10), and a clamping groove (12) is provided on the inner surface of the switching cylinder (4).

3. The auxiliary device for artificial blood vessel dilation according to claim 1, characterized in that: A sliding tension wheel (13) is installed at the lower end of the mounting plate (2), and a rotating guide wheel (14) is embedded on the upper surface of the mounting plate (2), and one end of the connecting pipe (7) passes around the bottom of the tension wheel (13).

4. The auxiliary device for artificial blood vessel dilation according to claim 1, characterized in that: A pressure monitoring mechanism is fixedly arranged on the upper surface of the mounting plate (2), and the upper limit of detection is adjusted by means of springs with different stiffnesses.

5. The auxiliary device for artificial blood vessel dilation according to claim 4, characterized in that: The pressure monitoring mechanism comprises: a detection box (15), the detection box (15) is fixedly arranged on the upper surface of the base (1), and a controller (16) is fixedly installed on the outer surface of the upper end of the detection box (15), a rotating switching wheel (17) is installed inside the detection box (15), and the rotating shaft of the switching wheel (17) passes through the outer surface of the detection box (15), and a switching button (18) is fixedly arranged at one end of the rotating shaft of the switching wheel (17), a pressure chamber (19) is opened on the side surface of the switching wheel (17), and a piston plate (20) is arranged inside the pressure chamber (19), and a contact block (21) is fixedly arranged on the inner surface of one end of the pressure chamber (19) facing the outside of the switching wheel (17), and a pressure relief port (22) is opened on the outer surface of the detection box (15).

6. The auxiliary device for artificial blood vessel dilation according to claim 2, characterized in that: The outer surface of the switching disk (8) is in contact with the inner surface of the switching tube (4); the angle between the two switching tubes (9) is the same as the angle between adjacent clamping rods (11); the clamping rods (11) are clamped and installed with the clamping grooves (12); and a spring is connected between the pressing plate (10) and the switching disk (8).

7. The auxiliary device for artificial blood vessel dilation according to claim 5, characterized in that: The side surfaces of both ends of the detection box (15) are penetrated by the pressurized tube (6), the outer surface of the switching wheel (17) is in contact with the inner surface of the detection box (15), the outer surface of the switching button (18) is provided with an arrow-shaped groove, the outer surface of the detection box (15) is provided with a scale groove, the piston plate (20) and the pressure chamber (19) are connected by sliding friction, and a spring is connected between the piston plate (20) and the pressure chamber (19), and the spring stiffness between the piston plate (20) and the pressure chamber (19) is different.

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