TWI733335B - Loop system using negative pressure delivery - Google Patents

Abstract

The invention discloses a loop system using negative pressure delivery, including: a sending end for sending a test tube; a receiving end for receiving the test tube; a negative pressure pipeline connecting the sending end and the receiving end as a path for the system to deliver the test tube; and a deceleration pipeline connected to the negative pressure pipeline as the path for the system to deliver the test tube and reduce the speed at which the test tube enters the receiving end.

Description

Loop system using negative pressure conveying

The present invention relates to a loop system that uses negative pressure to transport, in particular to a loop system that uses negative pressure to transport test tubes (or bare tubes).

In the prior art, the gas delivery pipes for conveying test tubes are all rigid pipes; however, the rigid pipes have the disadvantages of large volume and difficult construction; in addition, the test tubes must be installed in specific specifications when the test tubes are transported. The vehicle can only be transported in the rigid material pipeline for transportation.

Furthermore, because of the problems with the packing method of personnel, the test tube in the conventional technology often undergoes hemolysis reaction, which destroys the blood quality. In addition, the delivery method in the prior art adopts positive pressure delivery, and has the following disadvantages: 1. The test tube falls too fast, which damages the blood quality and causes hemolysis; 2. It cannot deliver more than three tubes in the same pipeline. The test tube; 3. One sending end cannot connect multiple pipes at the same time to send multiple test tubes at the same time.

One of the objectives of the present invention is to solve the problem of In the test tube, the hemolysis problem caused by the speed cannot be effectively and accurately controlled.

One of the objectives of the present invention is to use negative pressure to transport the test tube and provide the function of reducing the speed of the test tube.

One of the objectives of the present invention is that the same pipeline can continuously transport multiple test tubes.

One of the objectives of the present invention is the problem that one sending end can connect multiple pipelines at the same time.

The present invention discloses a loop system that utilizes negative pressure transmission, including: a sending end for sending a test tube; a receiving end for receiving the test tube; a negative pressure pipeline connecting the sending end and the receiving end as The path for the system to transport the test tube; and a deceleration pipeline connected to the negative pressure pipeline as a path for the system to transport the test tube and to reduce the speed of the test tube entering the receiving end.

According to an embodiment of the present invention, the sending end further includes: an orientation transfer mechanism that turns the test tube from a horizontal direction to a vertical direction; wherein the test tube enters the negative pressure pipeline in the vertical direction.

According to an embodiment of the present invention, the deceleration pipeline is arranged between the end of the negative pressure pipeline and the receiving end, and the deceleration pipeline further includes: a second air outlet for extracting air from the deceleration pipeline; The second suction port adsorbs the test tube passing through the second suction port to reduce the speed of the test tube.

100, 300, 400: loop system

110: sender

120: negative pressure pipeline

150: Deceleration line

130: test tube

160: receiving end

151: Motor

157: Pipeline

154, 155: Air volume control valve

10, 152: exhaust vent

156: outside air inlet

120a: Negative pressure adjustment inner tube

10: Orientation transfer agency

10a: Car seat

11: groove

12: Promoting agency

13: Test tube sending organization

I: entrance

O: Export

S1, S2: Telescopic rod

G: open

Figure 1 shows the loop system of the present invention using negative pressure delivery in a Schematic diagram of an embodiment.

Fig. 2A shows a top view of the negative pressure pipeline of the present invention at the dotted line aa' in Fig. 1.

Fig. 2B shows a side cross-sectional view of the negative pressure pipeline of the present invention at the dotted line aa' in Fig. 1.

FIG. 3 shows a schematic diagram of another embodiment of the loop system of the present invention using negative pressure delivery.

Fig. 4 shows a schematic diagram of another embodiment of the loop system of the present invention using negative pressure delivery.

5A to 5C show schematic diagrams of an embodiment of the sending end of the present invention.

Please refer to FIG. 1, which shows a schematic diagram of an embodiment of a loop system using negative pressure conveying according to the present invention. The loop system 100 includes a sending end 110, a receiving end 160, a negative pressure pipeline 120, and a deceleration pipeline 150.

The sending end 110 is used to send a test tube 130 (or called a bare tube). The test tube 130 is transported to the receiving end 160 through the negative pressure tube 120 and the deceleration pipe 150; and finally, the receiving end 160 is used to receive the test tube 130.

Please note that the negative pressure pipe 120 connects the sending end 110 and the receiving end 160, and the negative pressure pipe 120 serves as the path for the system 100 to transport the test tube 130; the deceleration pipe 150 connects the negative pressure pipe 120 and the receiving end 160, and the deceleration pipe 150 serves as the system 100 transports the path of the test tube 130, and the transport speed of the test tube 130 is reduced after entering the deceleration line 150, so the deceleration line 150 is used to reduce the speed of the test tube 130 entering the receiving end 160.

In one embodiment, the negative pressure pipeline 120 is implemented with a Teflon hose. The dimensions of the negative pressure pipeline 120 are outer diameter: 22.5mm, inner diameter: 19.5mm; the size of the test tube 130 is 107mm in length and 12.5mm in diameter. , The diameter of the screw cap of the test tube is 16mm; the negative pressure pipeline 120 extracts the air in the pipeline through the motor 151 to reach a negative pressure state, and the motor 151 can be implemented by a blower (220V).

As shown in Figure 1, the solid arrow is the direction of air flow. The motor 151 uses the pipeline 157 to connect the negative pressure pipeline 120, and controls the negative pressure value in the negative pressure pipeline 120 through the air volume control valve 154; when the motor 151 is started, the negative pressure pipeline 120 The air of 120 is drawn from the suction port 10, the negative pressure value of the negative pressure pipe 120 reaches 0~-0.9 atm, and the test tube 130 at the sending end 110 is sucked into the negative pressure pipe 120. Since the negative pressure pipeline 120 is in a negative pressure state, the test tube 130 will be transported to the receiving end 160 along the negative pressure pipeline 120.

In one embodiment, the difference between the inner diameter of the negative pressure tube 120 of 19.5 mm and the diameter of the screw cap of the test tube 130 of 16 mm is 3.5 mm, so the collision of the test tube 130 on the negative pressure tube 120 can be reduced and the probability of hemolysis can be reduced.

In one embodiment, the negative pressure pipe 120 and the deceleration pipe 150 are implemented by Teflon (Polytetrafluoroethene, PTFE), which can reduce the tube wall friction between the test tube 130 and the negative pressure pipe 120 and the deceleration pipe 150.

Continuing from the above, the negative pressure pipeline in the loop system 100 shown in Figure 1 There is only one 120, but the present invention should not be limited to this. The loop system may also have a plurality of negative pressure pipelines 120. The system 100 passes through the negative pressure pipe 120, and the test tube 130 passes through the negative pressure, and is transported from the sending end 110 to the receiving end 160; in addition, there is a deceleration pipe 150 between the receiving end 160 and the end of the negative pressure pipe 120; 130 Through the deceleration line 150, the transfer speed of the test tube 130 from the sending end 110 to the receiving end 160 can be reduced to achieve the purpose of slowing down the test tube and avoid the blood in the test tube because the falling speed is too fast, resulting in the blood in the test tube The quality is destroyed (hemolysis), which affects the accuracy of detection.

Please note that in this embodiment, the negative pressure pipe 120 has a first air suction port 10, and the motor 151 uses a pipe 157 to connect to the negative pressure pipe 120. The air suction port 10 is used to extract air from the negative pressure pipe 120 to make it appear Negative pressure, and make the negative pressure value of the negative pressure pipeline 120 reach 0~-0.9atm.

In addition, the deceleration pipe 150 is arranged between the end of the negative pressure pipe 120 and the receiving end 160, and the deceleration pipe 150 includes a second air suction port 152 and an external air input port 156. The second air outlet 152 is connected to the motor 151. The motor 151 controls the second air outlet 152 through the air volume control valve 155. The second air outlet 152 extracts air from the deceleration pipeline 150 so that the second air outlet 152 absorbs the air passing through the second air outlet 152 The test tube 130 is used to reduce the speed of the test tube 130; in other words, the area near the second air outlet 152 can be regarded as another negative pressure pipeline, and the air volume control valve 155 controls the negative pressure value at the second air outlet 152.

Then, when the test tube 130 is transported to the outside air input port 156, because the outside air input port 156 inputs an outside air, the deceleration pipe 150 is straight. The pressure value increases, so the final speed of the test tube 130 in the deceleration pipeline 150 is a free fall speed.

In one embodiment, the speed of the test tube 130 near the external air input port 156 is close to a free fall. In other words, the external air input port 156 provides a pressure value between -0.9-1 atm. The outside air input port 156 can control the input of outside air through another motor (not shown) and another outside air input valve (not shown).

Please note that the negative pressure value of the negative pressure pipeline 120 is greater than the negative pressure value of the deceleration pipeline 150, and the negative pressure pipeline 120 is used as the test tube 130 for acceleration in the initial state.

In one embodiment, the negative pressure pipe 120 has at least one turn, and the turning radius is 100-120 cm.

Please refer to FIGS. 2A and 2B at the same time. FIG. 2A shows a top view of the negative pressure pipeline of the present invention at the dashed line aa' of FIG. 1, and FIG. 2B shows a side sectional view of the negative pressure pipeline of the present invention at the dashed line aa' of FIG. . In one embodiment, the system 100 further includes a negative pressure adjusting inner tube 120 a disposed at the first exhaust port 10, and the negative pressure adjusting inner tube 120 a is a path through which the system 100 transports the test tube 130.

Please note that the negative pressure adjusting inner tube 120a is covered by the negative pressure pipe 120, and the surface of the negative pressure adjusting inner tube 120a has a plurality of holes, and the holes are used to adjust the negative pressure value at the first exhaust port 10. In other words, the negative pressure The pressure adjusting inner tube 120a can reduce the negative pressure value around the first air outlet 10 to prevent the test tube 130 from being damaged by the negative pressure value of the first air outlet 10 when the test tube 130 is transported through the first air outlet 10 Adsorbed or stuck in the first exhaust port 10.

Please refer to FIG. 3, which shows a schematic diagram of another embodiment of the loop system of the present invention using negative pressure transmission. For simplicity, FIG. 3 only depicts the sending end 110, the receiving end 160, and the negative pressure pipeline 120, the same as the previous one. As mentioned, the system 300 adopts multiple negative pressure pipelines 120 for transportation, so: 1. The purpose of sending by a single sending end 110 and receiving by at least one receiving end 160 can be achieved. 2. Using the principle of negative pressure, the sending end 110 can achieve the purpose of continuously launching multiple test tubes 130 to increase the delivery efficiency. 3. Due to the design of the diameter of the vacuum pipeline, it is just in line with the size of the test tube 130, so it can reduce the collision of the test tube 130 during the pipeline transportation, and ensure that the test tube 130 will not cause hemolysis due to collision. 4. The sending end 110 has a sorting function. After being read by a barcode machine, the test tube 130 is sent to the negative pressure pipeline 120 connected to a corresponding receiving end 160 to achieve the purpose of transportation. 5. Since the vacuum line 120 just fits the size of the test tube 130, it is easy to get the test tube stuck in the vacuum line when turning. The negative pressure vacuum tube circuit structure 100 of the present invention can make the test tube 130 through the turning radius of the vacuum tube within the range of 100~120cm. Passed smoothly; the rest of the principles are the same as above, so I won’t repeat them.

Please refer to FIG. 4, which shows a schematic diagram of another embodiment of the loop system of the present invention using negative pressure transmission. As described above, the system 400 adopts multiple transmitting terminals 110 and can also be connected to the same receiving terminal 160. In the negative pressure transmission mode of the pressure pipeline 120, a plurality of test tubes 130 are respectively transported to a single receiving end 160 for collection, and then processed by the receiving end 160 in a unified manner; other principles are the same as the foregoing, and will not be described separately.

Please refer to FIGS. 5A to 5C. FIGS. 5A to 5C show schematic diagrams of the sending end of the present invention in an embodiment. The sending end 110 includes an orientation transfer mechanism 10, a groove 11, a pushing mechanism 12, and a test tube sending mechanism 13.

In one embodiment, the orientation transfer mechanism 10 includes a carriage 10a and a rotating table 10b, and the carriage 10a has an inlet I and an outlet O; the orientation transfer mechanism 10 is used to transfer the test tube 130 from a horizontal direction to a vertical direction. The vertical direction is defined as the direction perpendicular to the horizontal plane, so the test tube 130 enters the negative pressure pipeline 120 in a vertical direction; in other words, the test tube 130 enters the negative pressure pipeline 120 in a direction perpendicular to the horizontal plane.

Please note that the groove 11 has an opening G, and the test tube 130 rolls down into the opening G and is placed in the groove 11 in a horizontal direction. The opening direction is upward. When the test tube 130 rolls down into the opening G and is placed in the groove 11 in a horizontal direction, the groove 11 can be rotated 180 degrees or -180 degrees in the horizontal direction to make the spiral of all the test tubes 130 The covers all face the same direction.

When the test tube 130 rolls down and enters the groove 11, the groove 11 places the test tube 130 in a horizontal direction, which is defined as parallel to the horizontal plane. Since the propulsion mechanism 12 is a first telescopic rod S1 with a valve type, One end of a telescopic rod S1 pushes the test tube 130 from the groove 11 to the orientation transfer mechanism 13; in other words, one end of the first telescopic rod S1 pushes the test tube 130 into the entrance I of the orientation transfer mechanism 13 in a horizontal direction.

When the propulsion mechanism 12 extends the test tube 130 in one of the horizontal directions After the shaft advances into the entrance I, because it is connected to the carriage 10a with the rotating table 10b, the test tube 130 enters the carriage 10a and rotates a preset angle to transfer the test tube 130 from the horizontal direction to the vertical direction. At this time, the negative pressure pipeline 120 is aligned with or connected to the outlet O, and the test tube 130 is sucked from the outlet O by the negative pressure pipeline 120 to leave the passenger seat 10 a and enter the negative pressure pipeline 120.

In one embodiment, after the carriage 10a is shifted from the horizontal direction to the vertical direction, because the test tube sending mechanism 13 is a valve-type second telescopic rod S2, at this time one end of the second telescopic rod S2 enters the inlet I, and the second telescopic rod S2 The second telescopic rod S2 pushes the test tube 130 out of the outlet O to the negative pressure pipeline 120; in other words, the combination of the orientation transfer mechanism 10 and the test tube sending mechanism 13 is a mechanism for launching the test tube 130; in one embodiment, the preset angle is 90 degrees or -Achieved by 90 degrees.

In one embodiment, when the test tube 130 rolls down the groove 11, after the sending end 110 can photograph or read the barcode on the test tube 130 through a sensing device (not shown), the groove 11 can be selectively horizontal. Rotate the direction by 180 degrees or -180 degrees so that the screw caps of all the test tubes 130 face the same direction. In this way, it can be ensured that when the test tubes 130 enter the negative pressure pipeline 120, their screw caps all face the same direction.

To sum up, the loop system of the present invention using negative pressure transport uses negative pressure to transport the test tube, and the system has a deceleration line between the end of the negative pressure line and the receiving end, which can avoid the test tube in the transport process, because the test tube The falling speed is too fast, destroying the blood quality and causing hemolysis problems.

100: loop system

110: sender

120: negative pressure pipeline

150: Deceleration line

130: test tube

160: receiving end

151: Motor

157: Pipeline

154, 155: Air volume control valve

10, 152: exhaust vent

156: outside air inlet

120a: Negative pressure adjustment inner tube

Claims (12)

A loop system that utilizes negative pressure conveying includes: a sending end for sending a test tube; a receiving end for receiving the test tube; a negative pressure pipeline connecting the sending end and the receiving end as the system for conveying The path of the test tube; and a deceleration pipeline connecting the negative pressure pipeline as a path for the system to transport the test tube and reduce the speed at which the test tube enters the receiving end; wherein, the sending end includes: an azimuth transfer mechanism, the The orientation transfer mechanism transfers the test tube from a horizontal direction to a vertical direction, and the test tube enters the negative pressure pipeline in the vertical direction; a groove for placing the test tube in the horizontal direction; and a pushing mechanism , Is a first telescopic rod of the air valve type, and one end of the first telescopic rod pushes the test tube from the groove to the orientation transfer mechanism. The system according to claim 1, wherein the orientation transfer mechanism includes: a carriage having an entrance and an exit, and the propulsion mechanism pushes the test tube into the entrance with an extension axis in the horizontal direction; and A rotating table is connected to the carriage seat, the test tube rotates a preset angle after entering the carriage seat to jointly transfer the test tube from the horizontal direction to the vertical direction; wherein, when the test tube is transferred from the horizontal direction After the vertical direction, the The negative pressure pipeline is aligned with or connected to the outlet, and the test tube is sucked out of the passenger seat by the negative pressure pipeline from the outlet and enters the negative pressure pipeline. The system according to claim 2, wherein the groove has an opening, and the test tube rolls down into the opening and is placed in the groove in the horizontal direction. The system according to claim 3, wherein the sending end further comprises: a test tube sending mechanism, which is a second telescopic rod in the form of a valve, one end of the second telescopic rod enters the entrance, and the first telescopic rod Two telescopic rods push the test tube out of the outlet to the negative pressure pipeline. The system according to claim 4, wherein the direction of the opening is upward, and when the test tube rolls down into the opening and is placed in the groove in the horizontal direction, the groove can be selectively in the horizontal direction Perform a positive or negative 180 degree rotation. The system according to claim 1, wherein the negative pressure pipeline has a first air suction port for drawing air from the negative pressure pipeline to present a negative pressure. The system according to claim 6, wherein the deceleration pipe is arranged between the end of the negative pressure pipe and the receiving end, and the deceleration pipe includes: a second air outlet for extracting the deceleration pipe For the air in the road, the second air suction port absorbs the test tube passing through the second air suction port to reduce the speed of the test tube. The system according to claim 7, wherein the deceleration pipeline includes: an external air input port, inputting an external air to increase the positive pressure value of the deceleration pipeline, and the test tube is located at the end of the deceleration pipeline The speed is a free fall speed. The system according to claim 8, wherein the negative pressure value of the negative pressure pipeline is greater than the negative pressure value of the deceleration pipeline, and the negative pressure pipeline is used as an acceleration of the test tube in the initial state. The system according to claim 9, wherein the negative pressure pipeline has at least one turning radius, and the turning radius is 100 to 120 cm. The system according to claim 6, wherein the system comprises: a negative pressure adjusting inner tube, which is arranged at the first exhaust port, and the negative pressure adjusting inner tube is a path for the system to transport the test tube; wherein The negative pressure adjusting inner tube is covered by the negative pressure pipeline, and the surface of the negative pressure adjusting inner tube has a plurality of holes, and the holes are used to adjust the negative pressure value at the first air outlet. A loop system that utilizes negative pressure conveying includes: a sending end for sending a test tube; a receiving end for receiving the test tube; a negative pressure pipeline connecting the sending end and the receiving end as the system for conveying The path of the test tube; and a deceleration pipeline connecting the negative pressure pipeline as a path for the system to transport the test tube and reduce the speed at which the test tube enters the receiving end; wherein, the sending end includes: an azimuth transfer mechanism, the The orientation transfer mechanism transfers the test tube from a horizontal direction to a vertical direction, the test tube enters the negative pressure pipeline in the vertical direction, and the orientation transfer mechanism includes: A carriage seat with an entrance and an outlet, the test tube is pushed into the entrance with an extension axis in the horizontal direction; and a rotating table connected to the carriage seat, the test tube rotates after entering the carriage seat by a preset The angle is associated with the transfer of the test tube from the horizontal direction to the vertical direction; wherein, when the test tube is transferred from the horizontal direction to the vertical direction, the negative pressure pipeline is aligned with or connected to the outlet, and the test tube is transferred from the The outlet is sucked out by the negative pressure pipeline to leave the passenger seat and enter the negative pressure pipeline.

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