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CN-121987890-A - Flow-limiting device of transfusion system

CN121987890ACN 121987890 ACN121987890 ACN 121987890ACN-121987890-A

Abstract

The application relates to the technical field of medical appliances, and discloses a flow limiting device of an infusion apparatus, which comprises a travel rod, wherein threads are arranged on the inner wall of the travel rod close to the top, an adjusting bolt is arranged in a threaded fit mode, an extrusion spring is arranged at the top of the adjusting bolt, the bottom of the extrusion spring is contacted with the top of an extrusion cover, and the rotation of the adjusting bolt can be screwed under the action of the threaded fit, so that the extrusion spring is extruded to improve the pressure exerted by the extrusion spring on the top of the extrusion cover. The adjusting bolt can be disassembled by reversely rotating the adjusting bolt, the extrusion cover can be lifted upwards and disassembled after the adjusting bolt is separated, the side hole can be removed from the outer side of the heating device at the moment, so that the separation of the side hole and the device is realized, the flow limiting device in the traditional infusion device cannot be disassembled, and can only be discarded along with the side hole after the use is finished, so that the waste is caused, and the application well avoids the problem, and improves the practicability of the device.

Inventors

  • LI HONGYAN
  • WANG JINFENG
  • WANG SONG
  • SHI RONGYAN
  • HUANG CHANGJING
  • Miao Shaishai
  • LI FANG
  • LI YUNJIE

Assignees

  • 徐州市康复医院(徐州市老年病医院)

Dates

Publication Date
20260508
Application Date
20241108

Claims (6)

  1. 1. The utility model provides a current limiter of transfusion system, its characterized in that, including extrusion cover (1), mating holes (2) have been seted up at the top of extrusion cover (1), extrusion device (3) have been seted up through flexible complex mode movable mounting to the inside of mating holes (2), movable mounting has heating device (4) on the inside position of extrusion cover (1) of the surface of extrusion device (3), leave the clearance between extrusion cover (1) and heating device (4), and be provided with transfer line (5) in the inside in this clearance, transfer line (5) twine the surface at heating device (4), and transfer line (5) take place to warp under the extrusion effect of extrusion cover (1), side opening (6) have been seted up to the surface of extrusion cover (1), the one end of transfer line (5) wears out from the inside of side opening (6), and the other end of transfer line (5) wears out from the bottom in the clearance between extrusion cover (1) and heating device (4).
  2. 2. The infusion apparatus flow limiting device according to claim 1, wherein the extruding device (3) comprises a travel bar (31), threads are arranged at a position, close to the top, of the inner wall of the travel bar (31), an adjusting bolt (32) is installed in a threaded fit mode, an extruding spring (33) is arranged at the top of the adjusting bolt (32), the bottom of the extruding spring (33) is contacted with the top of the extruding cover (1), a mounting disc (34) is fixedly installed at a position, close to the bottom, of the outer surface of the travel bar (31), an air bag (35) is arranged at a position, close to the bottom, of the top of the mounting disc (34), a positioning disc (36) is fixedly installed at the top of the air bag (35), an inner ring of the positioning disc (36) is contacted with the outer surface of the travel bar (31), and a contact surface is subjected to sealing treatment, and a mounting disc (37) is fixedly installed at a position, close to the bottom, of the inner wall of the travel bar (31).
  3. 3. An infusion set flow restriction device according to claim 2, wherein the balloon (35) is filled with a gas, which expands in volume when heated.
  4. 4. A flow limiting device for an infusion apparatus according to claim 3, wherein the heating device (4) comprises a winding seat (41) and an inner bin (42), a connecting pipe (43) is fixedly arranged at the top of the inner wall of the winding seat (41), the bottom of the connecting pipe (43) is connected with the top of the outer surface of the inner bin (42), the connecting pipe (43) penetrates through the winding seat (41) and the inner bin (42) and is movably sleeved with a travel rod (31), a positioning ring (44) is arranged at a position, close to the top, of the inner wall of the inner bin (42), the positioning ring (44) is clamped with a positioning disc (36), a heat insulation ring (45) is arranged at a position, close to the bottom, of the inner wall of the inner bin (42), a heating water bag (46) is arranged at a position, which is positioned below the positioning ring (44) and above the heat insulation ring (45), a low-end sealing cover (47) is fixedly arranged at the bottom of the inner bin (42), the inner bin (42) and the inner cavity (41) are movably sleeved with a travel rod (31), a sealing hole (48) is arranged at the bottom of the inner bin (41), and the sealing hole (48) is connected with the bottom of the sealing hole (48).
  5. 5. An infusion set flow restricting device according to claim 4, wherein the top of the heating water bag (46) is provided with a protrusion, and the protrusion portion extends from the bottom of the stroke bar (31) into the inside of the stroke bar (31).
  6. 6. The flow restricting device of an infusion apparatus according to claim 5, wherein the interior of the heating water bladder (46) is filled with hot water, and the hot water is injected into the interior of the heating water bladder (46) through the injection hole (48) and the connecting pipe.

Description

Flow-limiting device of transfusion system Technical Field The application relates to the technical field of medical appliances, in particular to a flow limiting device of an infusion apparatus. Background Infusion treatment is a common treatment means, the liquid medicine in a medicine bottle is injected into a patient body at a low flow rate by using infusion equipment, so that the treatment effect is achieved, the flow limiting device is often directly arranged on the outer side of an infusion tube, the extrusion force of the infusion tube is changed by rotating a roller in a chute, the flow rate is controlled, the adjustment mode is convenient to use, the structure is simple, the manufacturing cost is low, but in the practical situation, after the infusion is finished, the flow limiting device on the outer side of the infusion tube is discarded along with the infusion apparatus, the waste is caused, and the use cost is increased. Disclosure of Invention The application provides a flow limiting device of an infusion apparatus, which has the advantages of being independent of an infusion tube and being detachable after use, and is used for solving the problem that the traditional flow limiting device is discarded along with the infusion apparatus. The application adopts the following technical scheme that the flow limiting device of the infusion apparatus comprises an extrusion cover, wherein a matching hole is formed in the top of the extrusion cover, the extrusion device is movably arranged in the matching hole in a telescopic matching mode, a heating device is movably arranged at the position, inside the extrusion cover, of the outer surface of the extrusion device, a gap is reserved between the extrusion cover and the heating device, an infusion tube is arranged in the gap, the infusion tube is wound on the outer surface of the heating device, the number of windings of the infusion tube on the outer surface of the heating device can be determined according to requirements, the higher the number of windings is, the lower the number of windings is, and the lower the temperature is. Specifically, the infusion tube is deformed under the extrusion action of the extrusion cover, and after the infusion tube is extruded, the transverse sectional area is reduced, so that the flow speed of the liquid medicine is reduced when the liquid medicine passes through. Specifically, the lateral opening has been seted up to the surface of extrusion cover, the one end of transfer line is worn out from the inside of lateral opening, and the other end of transfer line is worn out from the bottom in clearance between extrusion cover and the heating device. Further, extrusion device includes the stroke pole, be provided with the screw thread on the position that the stroke pole inner wall is close to the top, and install adjusting bolt through screw-thread fit's mode, adjusting bolt's top is provided with extrusion spring, extrusion spring's bottom contacts with extrusion cover's top, adjusting bolt rotates and screws under screw-thread fit's effect to extrusion spring is in order to improve extrusion spring to extrusion cover top applied pressure, under this effect, extrusion cover further increases the pressure of transfer line, and the deformation degree that the transfer line takes place is higher, and its transverse cross-sectional area further reduces, and the speed of fluid process is slower. Specifically, the mounting plate is fixedly mounted at a position, close to the bottom, of the outer surface of the travel bar, the air bag is arranged at the position, close to the bottom, of the top of the mounting plate, the positioning plate is fixedly mounted at the top of the air bag, the inner ring of the positioning plate is contacted with the outer surface of the travel bar, the contact surface is subjected to sealing treatment, and the air bag is fixedly mounted at a position, close to the bottom, of the inner wall of the travel bar. Further, the air bag is internally filled with gas, and the volume expands when heated. Further, heating device includes winding seat and interior storehouse, winding seat inner wall top fixed mounting has the connecting pipe, the bottom of connecting pipe is connected with the top of interior storehouse surface, the connecting pipe runs through winding seat and interior storehouse and establishes with the stroke pole movable sleeve, be provided with the holding ring on the position that interior storehouse inner wall is close to the top, holding ring and positioning disk joint, after the inside gaseous expansion that takes place of gasbag is heated, because the fixed unable displacement that takes place of position of positioning disk, the gasbag promotes the mounting disc and removes towards the below this moment to make the interval between adjusting bolt top and the extrusion cover top reduce, extrusion spring's elasticity further increases. Specifically, be provided with the heat insula