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CN-122016275-A - Gas and liquid balloon pressure test system

CN122016275ACN 122016275 ACN122016275 ACN 122016275ACN-122016275-A

Abstract

The invention discloses a gas and liquid balloon pressure test system which comprises a main tester, a water tank, an air pump, a diameter measuring tool and a balloon test piece, wherein the water tank, the air pump and the diameter measuring tool are all positioned on the outer side of the main tester, the balloon test piece is positioned on the diameter measuring tool, a touch control screen is arranged on the side wall of the main tester, a waterway system, a positive pressure air circuit system, a negative pressure air circuit system and a PLC main control unit electrically connected with the touch control screen are arranged in the main tester, the water tank is communicated with the waterway system under the control of the PLC main control unit and is connected to the balloon test piece through the waterway system pipeline, the air pump is communicated with the positive pressure air circuit system under the control of the PLC main control unit and is connected to the balloon test piece through the positive pressure air circuit system pipeline, and the negative pressure air circuit system is communicated with the balloon test piece under the control of the PLC main control unit. The invention has the beneficial effect of achieving the purpose of improving the operation convenience.

Inventors

  • MA JUN
  • ZHANG LI
  • JIANG XIAOLU
  • CAI LEI
  • XU WENJIE
  • SU DANFENG

Assignees

  • 浙江省医疗器械检验研究院(国家食品药品监督管理局杭州医疗器械质量监督检验中心)

Dates

Publication Date
20260512
Application Date
20260127

Claims (13)

  1. 1. The utility model provides a gaseous and liquid sacculus pressure test system, includes main tester (1), water tank (2), air pump (3), calliper (4) and sacculus test piece, water tank (2), air pump (3) and calliper (4) all are located the outside of main tester (1), characterized by, sacculus test piece is located calliper (4), be equipped with touch control screen (7) on main tester (1) lateral wall, be equipped with waterway system (8), positive pressure gas circuit system (9), negative pressure gas circuit system (10) and with PLC master control unit (52) that touch control screen (7) electricity is connected in main tester (1), water tank (2) are linked together and are connected to the sacculus test piece through waterway system (8) pipeline under the control of PLC master control unit (52), air pump (3) are linked together and are connected to the sacculus test piece through positive pressure gas circuit system (9) pipeline under the control of PLC master control unit (52), negative pressure gas circuit system (10) are linked together with sacculus test piece under the control unit (52).
  2. 2. The gas and liquid balloon pressure test system according to claim 1, wherein the waterway system (8) comprises an electric cylinder (11), a hydraulic cylinder (12), a water inlet electromagnetic valve (13), a three-way valve (14) and a water pressure sensor (15), wherein the electric cylinder (11), the hydraulic cylinder (12), the water inlet electromagnetic valve (13), the three-way valve (14) and the water pressure sensor (15) are all detachably connected with the main tester (1), a piston rod (16) is arranged on the hydraulic cylinder (12), the electric cylinder (11) drives the piston rod (16) to do telescopic motion relative to the inside of the hydraulic cylinder (12) under the control of the PLC main control unit (52), the water inlet electromagnetic valve (13), the three-way valve (14) and the water pressure sensor (15) are all electrically connected with the PLC main control unit (52), the front side and the rear side of the main tester (1) are respectively provided with a water pressure interface (17) and a water receiving port (18), the water tank (2) is connected with a pipeline of the water inlet electromagnetic valve (13) through the water receiving port (18), the water inlet electromagnetic valve (13) is respectively connected with the water pressure interface (17) and the water pressure interface (17) through the three-way valve (17) and the water pressure sensor (15) under the control of the PLC main control unit (52), the water pressure sensor (15) is connected between the three-way valve (14) and the water pressure interface (17) through pipelines, and the three are connected in series.
  3. 3. The gas and liquid balloon pressure test system according to claim 2, wherein a lever (19) is arranged in the main tester (1), the lever (19) is rotationally connected with the main tester (1), the electric cylinder (11) and the hydraulic cylinder (12) are mutually parallel, two ends of the lever (19) are rotationally connected with a telescopic end of the electric cylinder (11) and one end of a piston rod (16) on the hydraulic cylinder (12) respectively, the other end of the piston rod (16) is fixed with a piston block and penetrates through the end part of the hydraulic cylinder (12) and then is positioned in the hydraulic cylinder (12), and the piston block is tightly contacted with the inner wall of the hydraulic cylinder (12) and is in sliding connection with the hydraulic cylinder (12) under the driving of the electric cylinder (11).
  4. 4. A gas and liquid balloon pressure test system according to claim 3, characterized in that one end of the hydraulic cylinder (12) is close to the lever (19) and is provided with a soft connecting pipe (20) on the side wall thereof, the soft connecting pipe (20) and the piston rod (16) are both positioned at the same end of the hydraulic cylinder (12), the three-way valve (14) is communicated with the inside of the hydraulic cylinder (12) through the soft connecting pipe (20), the other end of the hydraulic cylinder (12) is far away from the lever (19) and is provided with a standby water pipe (21) on the side wall thereof, one end of the standby water pipe (21) is communicated with the inside of the hydraulic cylinder (12), the other end of the standby water pipe (21) penetrates through the side wall of the main tester (1) and is positioned outside the main tester (1), and the soft connecting pipe (20) and the standby water pipe (21) are respectively positioned at the left side and the right side of the piston block.
  5. 5. The system for testing the pressure of the gas and liquid balloon according to claim 1, wherein the positive pressure gas circuit system (9) comprises a positive pressure electric proportional valve, a positive pressure interface (22) and a gas transmission port (23) are respectively arranged on the front side and the rear side of the main tester (1), the gas pump (3) is connected with the gas transmission port (23) through a pipeline and then is communicated with the positive pressure interface (22) through the positive pressure electric proportional valve under the control of the PLC main control unit (52), and the positive pressure interface (22) is connected with a balloon test piece through a pipeline.
  6. 6. The system for testing the pressure of the gas and liquid balloon according to claim 1, wherein the negative pressure gas circuit system (10) comprises a vacuum pump (24), a vacuum electromagnetic valve (25) and a negative pressure electric proportional valve (26), the vacuum pump (24), the vacuum electromagnetic valve (25) and the negative pressure electric proportional valve (26) are all detachably connected with the main tester (1), a negative pressure interface (27) is arranged on the front side of the main tester (1), and the vacuum pump (24) is communicated with the negative pressure interface (27) after sequentially passing through the vacuum electromagnetic valve (25) and the negative pressure electric proportional valve (26) under the control of the PLC main control unit (52), and the negative pressure interface (27) is connected with a balloon test piece pipeline.
  7. 7. The gas and liquid balloon pressure test system according to claim 1, wherein the main tester (1) comprises an upper box body (5) and a lower box body (6), the upper box body (5) is detachably connected with the lower box body (6) and is mutually isolated, the touch control screen (7) is positioned on the front side of the upper box body (5), the PLC main control unit (52) is positioned in the upper box body (5), and the waterway system (8), the positive pressure air circuit system (9) and the negative pressure air circuit system (10) are all detachably connected with the inside of the lower box body (6).
  8. 8. The gas and liquid balloon pressure test system according to claim 7, wherein the rear side of the upper case (5) is hinged to the rear side of the lower case (6), lock hooks (28) are fixed to the left and right sides of the upper case (5), lock catches (29) matched with the corresponding lock hooks (28) are fixed to the left and right sides of the lower case (6), a gas spring (30) is arranged in the lower case (6), a cylinder body of the gas spring (30) is hinged to the left side or the right side of the lower case (6) and is close to the front side of the lower case (6), and a telescopic end of the gas spring (30) is hinged to the upper case (5) and is far away from the front side of the lower case (6).
  9. 9. A gas and liquid balloon pressure testing system according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8, characterized in that the water tank (2) is placed at a height greater than the height at which the main tester (1) is placed.
  10. 10. The system according to claim 1,2, 3, 4, 5, 6, 7 or 8, wherein the caliper tooling (4) comprises a hot water tank (31), an angle bracket (32) is arranged in the hot water tank (31), a support frame (33) and a placing platform (34) for fixing a balloon test piece are detachably arranged on the angle bracket (32), the support frame (33) is overhead arranged on the angle bracket (32), the placing platform (34) is arranged at the bottom of the support frame (33), an XZ shaft seat (35) and a rectangular hole I (36) parallel to the X-axis are arranged at the top of the support frame (33), the XZ shaft seat (35) is arranged on the side surface of the rectangular hole I (36) and is provided with a plurality of high-precision displacement meters (37) which are distributed along the X-axis and can penetrate through the rectangular hole I (36), the high-precision displacement meters (37) are electrically connected with a PLC main control unit (52), the high-precision displacement meters (37) are respectively connected with the hot water temperature controllers (35) along the X-axis and the Z-axis directions, and the high-precision displacement meters (37) are correspondingly connected with the PLC unit (52) in the place platform (31).
  11. 11. A gas and liquid balloon pressure testing system according to claim 10, wherein the top of the angle frame (32) is inclined, the height of the angle frame (32) gradually decreasing from its left end to its right end.
  12. 12. The system for testing the pressure of the gas and liquid balloon according to claim 10, wherein the bottom of the placing platform (34) is detachably and fixedly connected with the angle frame (32), a U-shaped groove (38) with two ends open towards the outside is formed in the top of the placing platform (34), the length direction of the U-shaped groove (38) is parallel to the X axial direction, a first pressing block (39) and a second pressing block (40) which are distributed left and right are arranged in the U-shaped groove (38), the first pressing block (39) and the second pressing block (40) are in sliding connection with the U-shaped groove (38), a plurality of jacks (41) which are matched with one end of a balloon test piece are arranged in the center of the first pressing block (39) along the vertical direction of the first pressing block, U-shaped clamping grooves (42) which are corresponding to the jacks (41) are left and right are formed in the top of the second pressing block, rectangular holes (43) which are parallel to the X axial direction are formed in the side walls of the U-shaped groove (38), and the second pressing block (40) are provided with rectangular holes (43) which are corresponding to the rectangular holes (43) in the two pressing blocks (40) and the two rectangular holes (43) which are communicated with the two rectangular holes (43).
  13. 13. The system according to claim 10, wherein the XZ shaft seat (35) comprises a vertical plate (45), the rectangular hole one (36) is located at the front side of the vertical plate (45), a screw motor (46) is detachably fixed at the center of the rear side of the vertical plate (45), the screw motor (46) is electrically connected with the PLC master control unit (52), a cross rod (47) is detachably fixed at the output end of the screw motor (46), the cross rod (47) is slidably connected with the vertical plate (45) along the Z axis under the driving of the screw motor (46), rectangular sliding holes (48) parallel to the Z axis are respectively formed in the left side and the right side of the vertical plate (45), two support plates (49) are vertically arranged on the cross rod (47), one end of each support plate (49) is fixedly connected with the cross rod (47), a sliding rail (50) parallel to the X axis is fixedly arranged at the other end of each support plate (49), and the sliding rail (50) is detachably mounted on the sliding rail (50) parallel to the X axis.

Description

Gas and liquid balloon pressure test system Technical Field The invention relates to the related technical field of balloon testing, in particular to a gas and liquid balloon pressure testing system. Background Balloon catheters are widely used for the treatment of diseases in vivo. For example, the catheter with a dilating balloon at the tail end is used for treating arterial stenosis, a doctor guides the balloon catheter into a blood vessel through fluoroscopy, positions the balloon catheter at a vascular lesion, and then expands the balloon through pressurized liquid so as to achieve the purpose of treatment, and for example, the flexible balloon for ablating heart tissues is used for treatment in a gas dilating balloon mode. In order to ensure the quality of the balloon, the balloon generally needs to pass a series of performance tests including a bursting test, a fatigue test, a water pressure test, a compliance test, a negative pressure test and the like, and because the tests of different products have differences, such as the compliance test after inflation and the compliance test after water filling, belong to two sets of completely different test logics, and the tests need to be respectively carried out through a waterway system and a gas circuit system, in the prior art, the balloon generally needs to be detected through different detection equipment, so that the operation is inconvenient and the cost is not beneficial. Disclosure of Invention The invention provides a gas and liquid balloon pressure testing system for improving operation convenience, which aims to overcome the defect of inconvenient balloon testing operation in the prior art. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a gaseous and liquid sacculus pressure test system, it includes main tester, water tank, air pump, calliper and sacculus test piece, water tank, air pump and calliper all are located the outside of main tester, the sacculus test piece is located calliper and is equipped with touch control screen on the main tester lateral wall, be equipped with waterway system, positive pressure gas circuit system, negative pressure gas circuit system and the PLC master control unit who is connected with touch control screen electricity in the main tester, the water tank is linked together with waterway system and is connected to the sacculus test piece through waterway system pipeline under the control of PLC master control unit, the air pump is linked together with positive pressure gas circuit system and is connected to the sacculus test piece through positive pressure gas circuit system pipeline under the control of PLC master control unit, negative pressure gas circuit system is linked together with the sacculus test piece under the control of PLC master control unit. The water tank, the air pump and the diameter measuring tool are all located in the outer side of the main tester, the balloon test piece is located on the diameter measuring tool, a touch control screen is arranged on the side wall of the main tester, a waterway system, a positive pressure air circuit system, a negative pressure air circuit system and a PLC main control unit electrically connected with the touch control screen are arranged in the main tester, the water tank is communicated with the waterway system under the control of the PLC main control unit and is connected to the balloon test piece through a waterway system pipeline, and the air pump is communicated with the positive pressure air circuit system under the control of the PLC main control unit and is connected to the balloon test piece through a positive pressure air circuit system pipeline, and the negative pressure air circuit system is communicated with the balloon test piece under the control of the PLC main control unit. The system adopts a PLC main control unit, can realize accurate adjustment within the flow range of 0.1-2.0 cc/s, has a PID control function, ensures the stability and repeatability of pressure control, is not described in detail herein, is characterized in that a water tank is communicated with a water path system under the control of the PLC main control unit and is connected to a balloon test piece through a water path system pipeline to fill water into the balloon test piece, burst test, fatigue test, water pressure leakage test, compliance test of water pressure and the like can be performed, an air pump is communicated with a positive pressure air path system under the control of the PLC main control unit and is connected to the balloon test piece through a positive pressure air path system pipeline, the compliance test of air pressure and the like can be performed by outputting set pressure to the balloon test piece, the negative pressure air path system is communicated with the balloon test piece under the control of the PLC main control unit, the negative pressure test piece is bene