Pressurizing method combining airtight pressurizing cabin with pneumatic pressurizing

Abstract

The invention relates to the technical field of clinical medical auxiliary equipment, in particular to a pressurization method combining a closed pressurization cabin with pneumatic pressurization, which comprises the following steps: S01, putting a medicine bag in infusion into the pressurization cabin, and detecting the pressure of the medicine bag through a pressure sensor; s02, in the process that the medicine in the medicine bag is reduced, the medicine bag is gradually shrunk, the air bag is pressurized through the electric inflation and deflation pump, the air bag extrudes the medicine bag, and the medicine bag is pressurized; s03, when the pressure sensor detects that the pressure of the medicine bag is too large, the single chip microcomputer controls the electric inflation and deflation pump to depressurize the air bag, so that the pressure of the medicine bag is reduced; s04, until the medicine in the medicine bag is exhausted, the medicine bag is contracted to the minimum state, and the air bag is inflated to the maximum state; pressure can be provided for the medicine bag, so that the medicine bag can be uniformly and stably filled without being lifted, the problem that thrombus is formed due to factors such as insufficient height of the medicine bag, slow blood flow and foreign matter stimulation in the body of a patient is solved, and use is safer and more reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of clinical medical auxiliary equipment, and specifically to a pressurization method that combines a sealed pressurized chamber with pneumatic pressurization. Background Art

[0002] Currently, the existing infusion method is to use the pressure difference between the human venous pressure and the atmospheric pressure (that is, raising the hanging bottle) to send the liquid into the body. The disadvantage of this method is that during infusion, the medicine bag needs to be held high all the time, like carrying a lantern, which causes certain inconvenience to the movement of the infusion person. Therefore, many wearable infusion devices have been disclosed in the prior art. However, since the wearable infusion device is prone to the problem of insufficient height of the medicine bag during use, there is not enough pressure in the infusion tube to ensure uniform and stable perfusion of heparinized saline, and thrombosis is likely to form in the patient's body due to factors such as slow blood flow and foreign body irritation, posing a great safety hazard. Summary of the Invention

[0003] The purpose of the present invention is to provide a pressurization method that combines a sealed pressurized chamber with pneumatic pressurization in view of the above deficiencies, which can provide pressure to the medicine bag, enabling the medicine bag to be uniformly and stably perfused without being held high, avoiding the problem of thrombosis formation in the patient's body due to insufficient height of the medicine bag, slow blood flow, foreign body irritation and other factors, and being safer and more reliable to use.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A pressurization method that combines a sealed pressurized chamber with pneumatic pressurization, comprising the following steps:

[0006] S01. Place the medicine bag being infused into the pressurized chamber, and detect the pressure of the medicine bag through a pressure sensor;

[0007] S02. During the process of drug reduction in the medicine bag, the medicine bag gradually shrinks. The electric air charging and discharging pump is used to pressurize the airbag, so that the airbag squeezes the medicine bag to pressurize the medicine bag;

[0008] S03. When the pressure sensor detects that the pressure of the medicine bag is too high, the single-chip microcomputer controls the electric air charging and discharging pump to decompress the airbag, thereby decompressing the medicine bag;

[0009] S04. Until the drug in the medicine bag is exhausted, the medicine bag shrinks to the smallest state, and the airbag is inflated to the largest state.

[0010] Further, in step S01, the pressurized chamber includes a chamber body and a hatch disposed on the front of the chamber body. The airbag, the single-chip microcomputer, the pressure sensor, and the electric air charging and discharging pump are all installed inside the chamber body. An air port and a pipe port are respectively disposed at the upper and lower ends of the chamber body. The electric air charging and discharging pump is installed at the air port. Both ends of the electric air charging and discharging pump are respectively communicated with the outside of the pressurized chamber and the airbag. The pressure sensor is disposed close to the pipe port. A touch display screen is embedded on one side of the chamber body. The electric air charging and discharging pump, the pressure sensor, and the touch display screen are all electrically connected to the single-chip microcomputer.

[0011] Further, when the user inputs through the touch display screen that the required infusion duration is T, the analog quantity returned by the pressure sensor is A, and the actual pressure is P. The actual pressure P inside the chamber body can be obtained from A through the formula: P = A / 1950 x 1023 + 50. Then, compare P with the decompression determination calibration value qig to determine whether pressurization or decompression is required.

[0012] Further, for condition filtering: when A is greater than 1023, calculate it as 1023; when A is less than 0, calculate it as 0.

[0013] Further, among them, the method for obtaining qig is as follows:

[0014] When T = 30 minutes, qig is 750;

[0015] When T = 40 minutes, qig is 650;

[0016] When T = 50 minutes, qig is 550;

[0017] After calculation, a pulse interval judgment can be made. When P < qig, pressurization can be performed; otherwise, decompression is performed.

[0018] Further, the internal space of the chamber body is 594000 cubic millimeters, and the volume ratio is 30 x 110 x 180 mm.

[0019] Further, when the medicine bag is 250 ml, for pressurization, the electric air charging and discharging pump is set to high level at 1 k / hz to achieve pressurization for 8 milliseconds, then pause for 2 milliseconds, and then repeat the operation.

[0020] Further, when the medicine bag is 500 ml, for pressurization, the electric air charging and discharging pump is set to high level at 1 khz to achieve pressurization for 8 milliseconds, pause for 2 milliseconds, then set the electric air charging and discharging pump to high level at 500 hz to achieve pressurization for 8 milliseconds, and then pause for 2 milliseconds, and then repeat the operation.

[0021] The beneficial effects of the present invention are:

[0022] In practical applications, the following steps are carried out: S01, put the medicine bag that is being infused into the pressurization chamber, and detect the pressure of the medicine bag through the pressure sensor; S02, during the process of the medicine in the medicine bag decreasing, the medicine bag gradually shrinks, and the airbag is pressurized through the electric charging and exhaust pump, so that the airbag squeezes the medicine bag to pressurize the medicine bag; S03, when the pressure sensor detects that the pressure of the medicine bag is too high, the single-chip microcomputer controls the electric charging and exhaust pump to decompress the airbag, thereby decompressing the medicine bag; S04, until the medicine in the medicine bag is exhausted, the medicine bag shrinks to the smallest state, and the airbag is inflated to the largest state. The present invention can provide pressure to the medicine bag, so that the medicine bag can be evenly and stably perfused without being held high, avoiding the problem of thrombosis formed in the patient's body due to factors such as insufficient height of the medicine bag, slow blood flow, and foreign body stimulation, and is safer and more reliable to use. Description of the Drawings

[0023] Figure 1 is the method step diagram of the present invention;

[0024] Figure 2 is the structural schematic diagram of the pressurization chamber in the present invention;

[0025] Reference numerals in the drawings: chamber body 101; airbag 102; single-chip microcomputer 103; pressure sensor 104; electric charging and exhaust pump 105; touch display screen 106. Detailed Embodiments

[0026] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0027] As Figure 1-2 shown, a pressurization method using a sealed pressurization chamber combined with pneumatic pressurization includes the following steps:

[0028] S01, put the medicine bag that is being infused into the pressurization chamber, and detect the pressure of the medicine bag through the pressure sensor 104;

[0029] S02, during the process of the medicine in the medicine bag decreasing, the medicine bag gradually shrinks, and the airbag 102 is pressurized through the electric charging and exhaust pump 105, so that the airbag 102 squeezes the medicine bag to pressurize the medicine bag;

[0030] S03, when the pressure sensor 104 detects that the pressure of the medicine bag is too high, the single-chip microcomputer 103 controls the electric charging and exhaust pump 105 to decompress the airbag 102, thereby decompressing the medicine bag;

[0031] S04, until the medicine in the medicine bag is exhausted, the medicine bag shrinks to the smallest state, and the airbag 102 is inflated to the largest state.

[0032] As Figure 1-2As shown in the figure, in step S01, the pressurized chamber includes a chamber body 101, a hatch provided on the front of the chamber body 101. The airbag 102, the single-chip microcomputer 103, the pressure sensor 104, and the electric air charging and discharging pump 105 are all installed inside the chamber body 101. Air ports and pipe ports are respectively provided at the upper and lower ends of the chamber body 101. The electric air charging and discharging pump 105 is installed at the air port. Both ends of the electric air charging and discharging pump 105 are respectively connected to the outside of the pressurized chamber and the airbag 102. The pressure sensor 104 is arranged close to the pipe port. A touch display screen 106 is embedded on one side of the chamber body 101. The electric air charging and discharging pump 105, the pressure sensor 104, and the touch display screen 106 are all electrically connected to the single-chip microcomputer 103. In this embodiment, the medicine bag capacity can be input through the touch display screen 106 and the infusion duration can be displayed, and the electric air charging and discharging pump 105 can be controlled through the single-chip microcomputer 103.

[0033] As Figure 1-2 shown, when the user inputs through the touch display screen 106 that the required infusion duration is T, the analog quantity returned by the pressure sensor 104 is A, and the actual pressure is P. From A, through the formula: P = A / 1950 x 1023 + 50, the actual pressure P inside the chamber body 101 can be obtained, and then P is compared with the decompression judgment calibration value qig to determine whether pressurization or decompression is required.

[0034] As Figure 1-2 shown, for condition filtering: when A is greater than 1023, it is calculated as 1023; when A is less than 0, it is calculated as 0.

[0035] As Figure 1-2 shown, among them, the method for obtaining qig is:

[0036] When T = 30 minutes, qig is 750;

[0037] When T = 40 minutes, qig is 650;

[0038] When T = 50 minutes, qig is 550;

[0039] After calculation, a pulse interval judgment can be made. When P < qig, pressurization can be carried out, otherwise decompression.

[0040] As Figure 1-2 shown, the internal space of the chamber body 101 is 594000 cubic millimeters, and the volume ratio is 30 x 110 x 180 mm. In this embodiment, the formula is for the internal space of 594000 cubic millimeters and the volume ratio of approximately 30 x 110 x 180 mm. If there are deviations in actual applications, the accuracy of the formula will decrease as the deviation increases.

[0041] As Figure 1-2As shown, when the medicine bag is 250 ml, the pressure is increased at 1 k / hz to the high level of the electric charging and exhaust pump 105 for 8 milliseconds of pressure increase, then paused for 2 milliseconds, and then the operation is repeated.

[0042] As Figure 1-2 shown, when the medicine bag is 500 ml, the pressure is increased at 1 khz to the high level of the electric charging and exhaust pump 105 for 8 milliseconds of pressure increase, paused for 2 milliseconds, the pressure is increased at 500 hz to the high level of the electric charging and exhaust pump 105 for 8 milliseconds of pressure increase, then paused for 2 milliseconds, and then the operation is repeated.

[0043] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the scope defined by the spirit of the present invention.

Claims

1. A pressurization method using a closed pressurized cabin combined with pneumatic pressurization, characterized in that: It includes the following steps: S01. Put the medicine bag in the infusion process into the pressurization chamber, and detect the pressure of the medicine bag through a pressure sensor; S02. During the process of the medicine in the medicine bag decreasing, the medicine bag gradually shrinks. Pressurize the airbag through an electric charging and exhaust pump to make the airbag squeeze the medicine bag and pressurize the medicine bag; S03. When the pressure sensor detects that the pressure of the medicine bag is too high, the single-chip microcomputer controls the electric charging and exhaust pump to decompress the airbag, thereby decompressing the medicine bag; S04. Until the medicine in the medicine bag is exhausted, the medicine bag shrinks to the smallest state and the airbag inflates to the largest state.

2. A pressurization method using a closed pressurized cabin combined with pneumatic pressurization according to claim 1, characterized in that: In step S01, the pressurization chamber includes a chamber body and a chamber door arranged on the front of the chamber body. The airbag, single-chip microcomputer, pressure sensor and electric charging and exhaust pump are all installed in the chamber body. An air port and a pipe port are respectively arranged at the upper and lower ends of the chamber body. The electric charging and exhaust pump is installed at the air port. Both ends of the electric charging and exhaust pump are respectively communicated with the outside of the pressurization chamber and the airbag. The pressure sensor is arranged close to the pipe port. A touch display screen is embedded on one side of the chamber body. The electric charging and exhaust pump, pressure sensor and touch display screen are all electrically connected to the single-chip microcomputer.

3. A pressurization method using a closed pressurized cabin combined with pneumatic pressurization according to claim 2, characterized in that: When the user inputs through the touch display screen that the required infusion duration is T, the analog quantity returned by the pressure sensor is A, and the actual pressure is P. From A, the actual pressure P in the chamber body can be obtained through the formula: P = A / 1950 x 1023 + 50. Then compare P with the decompression judgment calibration value qig to obtain whether pressurization or decompression is required.

4. A pressurization method using a closed pressurized cabin combined with pneumatic pressurization according to claim 3, characterized in that: Condition filtering: When A is greater than 1023, calculate it as 1023; when A is less than 0, calculate it as 0.

5. A pressurization method using a closed pressurized cabin combined with pneumatic pressurization according to claim 3, characterized in that: Among them, The method for obtaining qig is: When T = 30 minutes, qig is 750; When T = 40 minutes, qig is 650; When T = 50 minutes, qig is 550; After calculation, a pulse interval judgment can be made. When P < qig, pressurization can be carried out, otherwise decompression.

6. A pressurization method using a closed pressurized cabin combined with pneumatic pressurization according to claim 2, characterized in that: The internal space of the chamber body is 594000 cubic millimeters, and the volume ratio is 30 x 110 x 180 mm.

7. A pressurization method using a closed pressurized cabin combined with pneumatic pressurization according to claim 6, characterized in that: When the medicine bag is 250 ml, for pressurization, the electric charging and exhaust pump is at a high level at 1 k / hz to achieve pressurization for 8 milliseconds, then pause for 2 milliseconds, and then repeat the operation.

8. A pressurization method using a closed pressurized cabin combined with pneumatic pressurization according to claim 6, characterized in that: When the medicine bag is 500 ml, for pressurization, the electric charging and exhaust pump is at a high level at 1 khz to achieve pressurization for 8 milliseconds, pause for 2 milliseconds, then the electric charging and exhaust pump is at a high level at 500 hz to achieve pressurization for 8 milliseconds, and then pause for 2 milliseconds, and then repeat the operation.

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