Constant-temperature infusion type peristaltic infusion pump

Abstract

The utility model discloses a constant temperature infusion type peristaltic infusion pump which comprises a base, a box body and a peristaltic infusion assembly, the box body is fixed on the base, a power supply and a motor are arranged in the box body, the peristaltic infusion assembly comprises a front shell and a rear shell, a trapezoidal block fixed on the base is arranged below the rear shell, a connecting pipe is arranged on one side, close to the trapezoidal block, of the box body, and the connecting pipe is connected with the box body. The connecting pipe is connected with the front shell and the rear shell through flange plates, a rotating shaft is rotationally arranged in the connecting pipe, an output shaft of the motor is connected with the rotating shaft, the rotating shaft extends into the rear shell to be provided with a worm, a worm gear meshed with the worm is arranged in the rear shell, a center shaft is arranged in the center of the worm gear, and annular semicircular sleeves are symmetrically arranged on the outer sides of the front shell and the rear shell. The infusion protection device has the advantages that the infusion protection device is convenient to maintain, the infusion protection effect is improved, and the infusion comfort is improved.

Description

Technical Field

[0001] This utility model relates to the field of peristaltic infusion pump technology, specifically to a constant temperature peristaltic infusion pump. Background Technology

[0002] Peristaltic infusion pumps, as an important medical device, play a crucial role in clinical treatment. They are infusion pumps that propel fluid flow through a peristaltic motion. They utilize rotating rollers to squeeze the infusion tubing, continuously compressing the fluid-filled tubing and delivering fluid into the patient's body. During this squeezing process, the peristaltic pump head generates pressure, causing the fluid to flow. Furthermore, by controlling the pressure and speed of the pump head, the amount of medication delivered can be precisely adjusted.

[0003] Current peristaltic infusion pumps have some shortcomings: 1. The infusion tubing is generally in direct contact with the rollers. Prolonged pressure from the rollers on the infusion tubing can cause deformation and prevent it from springing back, affecting the infusion effect; 2. When administering infusions at low temperatures, the medication can be highly irritating to the body, and traditional peristaltic infusion pumps do not have a heating function for the infusion tubing; 3. Integrated peristaltic infusion pumps are inconvenient to maintain and have high operating costs. Utility Model Content

[0004] This invention addresses the problems of infusion tubing being in direct contact with rollers, which can cause deformation and loss of elasticity due to prolonged pressure from the rollers, thus affecting infusion efficacy; the significant irritation of the medication to the body during low-temperature infusions, which traditional peristaltic infusion pumps lack heating functionality for the infusion tubing; and the inconvenience and high cost of maintenance of integrated peristaltic infusion pumps. Therefore, this invention provides a constant-temperature peristaltic infusion pump.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a constant temperature infusion peristaltic infusion pump, including a base, a housing, and a peristaltic infusion assembly. The housing is fixed on the base, and a power supply and a motor are provided inside the housing. The motor is electrically connected to the power supply through a wire. The peristaltic infusion assembly includes a front housing and a rear housing, which are fixedly connected by bolts. A trapezoidal block fixed on the base is provided under the rear housing. A connecting pipe is provided on the side of the housing near the trapezoidal block. The connecting pipe is connected to the front housing and the rear housing through a flange. A rotating shaft is rotatably provided inside the connecting pipe. The output shaft of the motor is connected to the rotating shaft. The rotating shaft extends into the rear housing and is provided with a worm gear. A worm wheel that meshes with the worm gear is provided inside the rear housing. A central shaft is provided at the center of the worm wheel. Annular semi-circular sleeves are symmetrically provided on the outer sides of the front housing and the rear housing. Rotating rods are provided at both ends of the central shaft and inside the annular semi-circular sleeves. Pressure rollers are provided at both ends of the rotating rods and inside the annular semi-circular sleeves.

[0006] As an improvement, the front housing and the rear housing form an installation space inside, the worm gear is rotatably connected to the front housing and the rear housing, and the central shaft is rotatably connected to the front housing and the rear housing with both ends extending to the outside.

[0007] As an improvement, the outer side of the annular semicircular sleeve is broken off, and a spiral open tube for wrapping the infusion tube is provided inside the annular semicircular sleeve. The spiral open tube is made of flexible rubber, and the pressure roller presses on the spiral open tube.

[0008] As an improvement, both the front and rear housings are provided with triangular pieces, one end of which is fixed by a bolt, and the triangular pieces are provided with two limiting holes for inserting infusion tubes.

[0009] As an improvement, heating resistance wires are distributed inside the front shell, the rear shell, and the annular semi-circular sleeve. The heating resistance wires are electrically connected to the temperature control board through wires, and the temperature control board is located inside the box.

[0010] The advantages of this utility model are: 1. The front shell and the rear shell are connected by splicing and assembly, and the peristaltic infusion component is connected to the transmission structure of the box through a flange and connecting pipe, which facilitates the maintenance and replacement operation of this utility model.

[0011] 2. The temperature control board controls the heating resistance wire to form a heating and heat preservation zone inside the front and rear shells, so that the temperature of the medicine solution passing through the infusion tube is increased, avoiding the discomfort caused by low temperature medicine solution input;

[0012] 3. The spiral-shaped open tube can be unrolled and wrapped around the infusion tube before infusion, and then inserted into the annular semi-circular sleeve to avoid direct contact between the pressure roller and the infusion tube, which could cause the infusion tube to deform and fail. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a partial sectional view of the present invention.

[0015] Figure 3 This is a schematic diagram of the box structure of this utility model.

[0016] As shown in the figure: 1. Base; 2. Box body; 3. Peristaltic infusion assembly; 4. Power supply; 5. Motor; 6. Front shell; 7. Rear shell; 8. Trapezoidal block; 9. Connecting pipe; 10. Rotating shaft; 11. Worm gear; 12. Worm wheel; 13. Central shaft; 14. Annular semi-circular sleeve; 15. Rotating rod; 16. Pressure roller; 17. Coiled open tube; 18. Triangular piece; 19. Limiting hole; 20. Heating resistance wire; 21. Temperature control board. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Combined with appendix Figure 1 , Figure 2 , Figure 3 A constant-temperature peristaltic infusion pump includes a base 1, a housing 2, and a peristaltic infusion assembly 3. The housing 2 is fixed to the base 1 and contains a power supply 4 and a motor 5. The motor 5 is electrically connected to the power supply 4 via wires. The peristaltic infusion assembly 3 includes a front housing 6 and a rear housing 7, which are fixedly connected by bolts. A trapezoidal block 8 is fixed to the base 1 at the bottom of the rear housing 7. A connecting pipe 9 is provided on the side of the housing 2 near the trapezoidal block 8. The connecting pipe 9 is connected to the front housing 6 and the rear housing 7 via flanges. A rotating shaft 10 is rotatably installed inside the connecting pipe 9. The output shaft of the motor 5 is connected to the rotating shaft 10. The rotating shaft 10 extends into the rear housing 7 and contains a worm gear 11. The rear housing 7 is provided with a worm gear 12 that meshes with the worm 11. The worm gear 12 has a central shaft 13 at its center. The front housing 6 and the rear housing 7 are symmetrically provided with annular semicircular sleeves 14. The central shaft 13 has rotating rods 15 at both ends. The rotating rods 15 are provided with pressure rollers 16 at both ends and inside the annular semicircular sleeves 14. The front housing 6 and the rear housing 7 form an installation space. The worm 11 is rotatably connected to the front housing 6 and the rear housing 7. The central shaft 13 is rotatably connected to the front housing 6 and the rear housing 7 and both ends extend to the outside. The annular semicircular sleeves 14 are broken off on the outside. The annular semicircular sleeves 14 are provided with a coiled open tube 17 for wrapping the infusion tube. The pressure rollers 16 press on the coiled open tube 17.

[0019] Both the front housing 6 and the rear housing 7 are provided with triangular pieces 18. One end of the triangular piece 18 is fixed by a bolt. The triangular piece 18 is provided with two limiting holes 19 for inserting infusion tubes. Heating resistance wires 20 are distributed in the front housing 6, the rear housing 7 and the annular semi-circular sleeve 14. The heating resistance wires 20 are electrically connected to the temperature control board 21 through wires. The temperature control board 21 is located inside the box 2.

[0020] The front housing 6 and the rear housing 7 are assembled by splicing. The connecting pipe 9 is fixedly connected to the front housing 6 and the rear housing 7 by a flange. The front housing 6 and the rear housing 7 can be quickly separated from the box 2, which is convenient for equipment maintenance and replacement. The peristaltic infusion assembly 3 can be used to infuse two infusion tubes at the same time. It is mainly driven by the motor 5 to drive the worm gear 11 to rotate, which in turn drives the worm wheel 12 and the central shaft 13 to rotate as the peristaltic driving force. The coiled open tube 17 can be unfolded to wrap the infusion tube before infusion. The coiled open tube 17 is then inserted into the annular semi-circular sleeve 14 to avoid direct contact between the pressure roller 16 and the infusion tube, which could cause the infusion tube to deform and fail. The temperature control plate 21 controls the heating resistance wire 20 to form a heating and heat preservation zone inside the front housing 6 and the rear housing 7, so that the temperature of the medicine flowing through the infusion tube is increased, avoiding the discomfort caused by the low temperature medicine input.

[0021] In a specific implementation of this invention, one end of the infusion tube passes through the limiting hole, and the coiled open tube is taken out to wrap the infusion tube. The infusion tube is pulled out from another limiting hole. The temperature control plate is opened so that the heating resistance wire heats the front shell, the rear shell and the annular semi-circular sleeve. The motor is started to drive the rotating shaft to rotate, which drives the worm and worm wheel to work. The central shaft drives the rotating rod and the pressure roller to rotate. The pressure roller continuously squeezes the coiled open tube, so that the liquid in the infusion tube flows.

[0022] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A constant-temperature peristaltic infusion pump, characterized in that: The system includes a base (1), a housing (2), and a peristaltic infusion assembly (3). The housing (2) is fixed on the base (1). The housing (2) contains a power supply (4) and a motor (5). The motor (5) is electrically connected to the power supply (4) via a wire. The peristaltic infusion assembly (3) includes a front housing (6) and a rear housing (7). The front housing (6) and the rear housing (7) are fixedly connected by bolts. A trapezoidal block (8) fixed on the base (1) is provided under the rear housing (7). A connecting pipe (9) is provided on the side of the housing (2) near the trapezoidal block (8). The connecting pipe (9) is connected to the front housing (6) and the rear housing (7). The components are connected by a flange. A rotating shaft (10) is provided inside the connecting pipe (9). The output shaft of the motor (5) is connected to the rotating shaft (10). The rotating shaft (10) extends into the rear housing (7) and is provided with a worm gear (11). A worm wheel (12) that meshes with the worm gear (11) is provided inside the rear housing (7). A central shaft (13) is provided at the center of the worm wheel (12). A ring-shaped semi-circular sleeve (14) is symmetrically provided on the outer sides of the front housing (6) and the rear housing (7). A rotating rod (15) is provided at both the front and rear ends of the central shaft (13). A pressure roller (16) is provided at both ends of the rotating rod (15) and inside the ring-shaped semi-circular sleeve (14).

2. The constant-temperature peristaltic infusion pump according to claim 1, characterized in that: The front housing (6) and the rear housing (7) form an installation space. The worm gear (11) is rotatably connected to the front housing (6) and the rear housing (7). The central shaft (13) is rotatably connected to the front housing (6) and the rear housing (7) and extends to the outside at both ends.

3. The constant-temperature peristaltic infusion pump according to claim 1, characterized in that: The annular semicircular sleeve (14) is broken off on the outside, and a spiral open tube (17) for wrapping the infusion tube is provided inside the annular semicircular sleeve (14), and the pressure roller (16) presses on the spiral open tube (17).

4. A constant-temperature peristaltic infusion pump according to claim 1, characterized in that: Both the front housing (6) and the rear housing (7) are provided with triangular pieces (18), one end of which is fixed by bolts, and the triangular pieces (18) are provided with two limiting holes (19) for inserting infusion tubes.

5. A constant-temperature peristaltic infusion pump according to claim 1, characterized in that: Heating resistance wires (20) are distributed in the front shell (6), rear shell (7), and annular semi-circular sleeve (14). The heating resistance wires (20) are electrically connected to the temperature control board (21) through wires. The temperature control board (21) is located inside the box (2).

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