variable infusion rate syringe pump€¦ · the flow rate for the phm-107 syringe pump is...

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VARIABLE INFUSION RATE SYRINGE PUMP PHM-107 USER’S MANUAL

DOC-008 Rev 1.6 Copyright ©2015 All Rights Reserved

Med Associates Inc. P.O. Box 319 St. Albans, Vermont 05478

Phone: 802.527.2343 Fax: 802.527.5095 www.med-associates.com

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notes

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Table of Contents

Chapter 1 | Introduction ................................................................................................ 3

Electrical Connections ................................................................................................................... 4

Chapter 2 | Syringe Placement ..................................................................................... 6

Glass Syringes ................................................................................................................................ 7

Chapter 3 | Flow Rate Calculation ............................................................................... 8

Syringe Cross-Sectional Areas ..................................................................................................... 9

Chapter 4 | Operating Instructions ............................................................................ 10

Chapter 5 | Automatic Shut-Off Switch Adjustment ............................................. 11

Chapter 6 | Maintenance and Troubleshooting ...................................................... 12

Appendix A | Flow Rate Charts (ml/hr) .................................................................... 13

Multifit Glass ................................................................................................................................ 13

Hamilton Glass ............................................................................................................................. 13

Unimetrics, Glass ......................................................................................................................... 14

Monoject, Plastic ......................................................................................................................... 14

B-D, Plastic ................................................................................................................................... 15

Terumo, Plastic ............................................................................................................................ 15

Appendix B | Contact Information............................................................................. 15

MED A S SOCI ATES I NC. PHM-1 07 V ARI ABLE I N FU SI O N R ATE SYRI NGE PU MP

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DOC-008 Rev 1.6 Copyright © 2015 Med Associates, Inc.

CHAPTER 1 | INTRODUCTION The PHM-107 Variable Infusion Rate Syringe Pump is designed to operate at one of 100 possible fixed speed settings. Pump operation can be controlled remotely via a Med Associates Interface output, or manually with a sliding switch. The unit operates on 28V DC.

Figure1.1 – PHM-107 Variable Infusion Rate Syringe Pump

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Electrical Connections

Figure 1.2 – Molex Pin Number Diagram

Figure 1.3 – SG-222 Cable

Figure 1.4 – PHM-107 Side Panel Diagram



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MED OPERATE

The MED OPERATE connector is used to supply power, as well as to receive the operate signal from a Med Associates Output Module.

To operate this pump using a Med Associates Interface System, connect the SG-222 Cable to the MED OPERATE connector on the PHM-107 Pump (Figure 1.4 ), then connect the SG-222 Cable to any available OUTPUT on a Med Associates Connection Panel.

Refer to Table 1.1 for pin assignments.

Table 1.1 – MED OPERATE Connector

Molex Pin # Wire Color Function

1 Black 28 Volt Ground

2 White Operate

3 Red + 28 Volts DC

END TRAVEL

When the syringe reaches the end of its travel, the Automatic Shut-Off Switch is triggered, causing the pump to stop running and the red LED on the top of the pump to flash. The END TRAVEL connector on the PHM-107 Pump can be used to send an input signal to a Med Associates Connection Panel when the switch is activated. (Refer to Chapter 5 for more information regarding the Automatic Shut-Off Switch).

To monitor the END TRAVEL indicator, connect the SG-222 Cable to the END TRAVEL connector on the PHM-107 Pump (Figure 1.4 ), then connect the SG-222 Cable to any available INPUT on a Med Associates Connection Panel.

Refer to Table 1.2 for pin assignments.

Table 1.2 – END TRAVEL Connector

Molex Pin # Wire Color Function

1 Black 28 Volt Ground

2 White End Travel Signal

3 Red + 28 Volts DC



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CHAPTER 2 | SYRINGE PLACEMENT Care should be exercised that the hub of the syringe barrel is positioned against the syringe clamp when loading the syringe pump. If a gap exists between the hub and the clamp, accurate flow rates cannot be assured, as the entire syringe (both barrel and plunger) may move forward. A visual check by observing the plunger move in relation to the barrel by rotating the front knob of the pump is advised. Figure 2.1 shows the procedure for loading a syringe into the PHM-107 Pump.

Figure 2.1 – Loading a Syringe

1. Move the slide to rear (toward motor section) by squeezing the jaws. 2. Insert syringe by lifting clamp cover and placing the syringe body into the clamp. 3. Move the slide to the end of the syringe.

4. Rotate the knob so that the slide makes contact with the plunger and the syringe contacts the clamp.

Once the syringe is installed, operate the pump at its fastest setting (“00”) until liquid drips out of the syringe or tubing. This ensures that fluid will be infused properly when the Pump is activated.



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Glass Syringes

Extra caution is needed when using glass syringes with a ground glass plunger. These syringes exhibit almost no sliding friction and thus can cause an uncontrolled infusion in the following two ways:

1. The weight of the plunger may be sufficient to push the fluid out of the syringe if the syringe is held with the plunger above the syringe.

2. The weight of the fluid in the tubing may be sufficient to siphon the fluid out of the syringe if the catheter infusion site is below the height of the syringe.

3. To test for these two conditions, it is suggested that the syringe be connected to the tubing and held vertically at the height of the pump. If no motion occurs, the syringe can then be placed in the pump.

The following may reduce the danger of an uncontrolled infusion:

1. Lower the relative height of the infusion pump in relation to the infusion site. With the pump below the infusion site, the instrument will pump the fluid to the higher elevation.

2. Use a smaller bore catheter, which will reduce the weight of the fluid in the tubing and increase the friction on the flowing fluid.

3. Position the pump so that the syringe is vertical (plunger below), thus the weight of the syringe plunger will be acting against the weight of the fluid.

4. Use a syringe with a rubber seal on the plunger, an O-ring sealed or plastic syringe.



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CHAPTER 3 | FLOW RATE CALCULATION The infusion rate of the PHM-107 Syringe Pump can be adjusted using the two pushbutton switches (Figure 3.1). The flow rate for the PHM-107 Syringe Pump is determined by the Pushbutton setting on the pump and the cross-sectional area of the syringe being used. Refer to the charts below for the cross-sectional areas of several commonly used syringes. See the Appendix for charts of the approximate flow rates of several commonly used syringes.

The following equation determines the approximate flow rate of the pump:

Flow Rate (ml/hr) = 1.14 x Pushbutton Setting x Syringe Cross Sectional Area (cm2)

Figure 3.1 – Front Panel Diagram

NOTE: There is one exception to this equation. A pushbutton setting of “00” will operate the pump at the maximum speed. To calculate the approximate flow rate at this setting use the following equation:

Flow Rate (mL/hr) = 116.19 x Syringe Cross-Sectional Area (cm²)



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Syringe Cross-Sectional Areas

Table 3.1 - Syringe Cross Sectional Areas

MULTIFIT, glass HAMILTON, glass UNIMETRICS, glass

Syringe Size Cross-section Syringe Size Cross-section Syringe Size Cross-section

1 mL 0.176 sq cm 10 mL 0.00167 sq cm .05 mL 0.00833 sq cm

2 mL 0.626 sq cm 25 mL 0.00417 sq cm .10 mL 0.01667 sq cm

5 mL 1.084 sq cm .05 mL 0.00833 sq cm .25 mL 0.04167 sq cm

10 mL 1.692 sq cm .10 mL 0.01667 sq cm .50 mL 0.08333 sq cm

20 mL 3.017 sq cm .25 mL 0.04167 sq cm 1 mL 0.16667 sq cm

30 mL 4.047 sq cm .50 mL 0.08333 sq cm 50 mL 6.173 sq cm 1 mL 0.16667 sq cm

2.5 mL 0.41667 sq cm 5 mL 0.83333 sq cm 10 mL 1.6667 sq cm

MONOJECT, plastic B-D PLASTIPAK, plastic TERUMO, plastic

Syringe Size Cross-section Syringe Size Cross-section Syringe Size Cross-section

1 mL 0.173 sq cm 1 mL 0.173 sq cm 3 mL 0.629 sq cm

3 mL 0.622 sq cm 2.5 mL 0.578 sq cm 5 mL 1.327 sq cm





60 mL 5.545 sq cm 60 mL 5.556 sq cm

NOTE: If the syringe cross-sectional area is unknown, or in applications where precise control of infusion volume is required, it is recommended that users calibrate each infusion pump using the syringe size of choice. A calibration curve should be created that shows volume output plotted as a function of speed setting. This information can be used to achieve the desired flow rate.



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CHAPTER 4 | OPERATING INSTRUCTIONS 1. For REMOTE operation, connect the pump as described in Chapter 1. Set the

MANUAL/REMOTE switch to REMOTE (Figure 3.1) and the pump will operate when the input is activated by a signal from the Med Associates Interface output bit.

2. For MANUAL operation, connect the pump as described in Chapter 1. Set the MANUAL/REMOTE switch to MANUAL (Figure 3.1).

3. Push the green ON/OFF rocker switch to the ON position.

4. While the pump is operating, the red OPERATE light (Figure 3.1) will be on. A blinking END TRAVEL light indicates that the Automatic Shut-Off Switch has been activated and infusion has been stopped. (See Chapter 5).

5. The FLUSH button bypasses SPEED and MANUAL/REMOTE settings, advancing the PHM-107 Pump to the maximum speed setting of 00 while pressed.



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CHAPTER 5 | AUTOMATIC SHUT-OFF SWITCH ADJUSTMENT The automatic shut-off switch is activated when the pump reaches the end of the syringe, and it causes the pump motor to cease operation. In addition the red LED light will flash. The automatic shut-off switch uses an internal micro-switch that detects when the slide assembly reaches a certain point. This point is adjustable so that the pump can accommodate various sizes and brands of syringes.

To adjust the automatic shut-off switch, insert an empty syringe with the plunger at the desired shut-off position. Move the slide assembly to the rear of the plunger (Figure 5.1). With the pump turned on, rotate the adjustment screw (Figure 5.1) until the red LED light comes on. Turning the screw counterclockwise will allow the pump to operate longer before the automatic shut-off switch activates. Conversely, turning the screw clockwise will cause the automatic shut-off switch to activate sooner.

Figure 5.1 – Adjusting the Automatic Shut-Off Switch



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CHAPTER 6 | MAINTENANCE AND TROUBLESHOOTING Cleaning: Clean the pump case using a soft cloth that is dampened with water and a

detergent. The pump case is an ABS plastic.

Lubrication: It is recommended that annually a drop of oil be applied to the bearings and Vaseline or silicone spray be applied to the lead screw.

Mechanical: If fluid is not infusing when the pump is running, check for occlusions in the IV line. If there is no occlusion, the lead screw and slide should be inspected for any signs of visible wear. Any worn part should be replaced.



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APPENDIX A | FLOW RATE CHARTS (ML/HR)

NOTE: These flow rates are approximate. In applications where precise control of infusion volume is required, it is recommended that each infusion pump be calibrated using the desired syringe size. A calibration curve should be created, showing volume output plotted as a function of speed. This information can be used to achieve the desired flow rate.

Multif it Glass

Pushbutton Setting

Syringe Size

1.00 ml 2.00 ml 5.00 ml 10.0 ml 20.0 ml 30.0 ml 50.0 ml

0 20.45 72.73 125.95 196.59 350.55 470.22 717.24

1 0.20 0.71 1.24 1.93 3.44 4.61 7.04

2 0.40 1.43 2.47 3.86 6.88 9.23 14.07

5 1.00 3.57 6.18 9.64 17.20 23.07 35.19

10 2.01 7.14 12.36 19.29 34.39 46.14 70.37

20 4.01 14.27 24.72 38.58 68.79 92.27 140.74

30 6.02 21.41 37.07 57.87 103.18 138.41 211.12

40 8.03 28.55 49.43 77.16 137.58 184.54 281.49

50 10.03 35.68 61.79 96.44 171.97 230.68 351.86

60 12.04 42.82 74.15 115.73 206.36 276.81 422.23

70 14.04 49.95 86.50 135.02 240.76 322.95 492.61

80 16.05 57.09 98.86 154.31 275.15 369.09 562.98

90 18.06 64.23 111.22 173.60 309.54 415.22 633.35

99 19.86 70.65 122.34 190.96 340.50 456.74 696.68

Hamilton Glass

Pushbutton Setting

Syringe Size

10.0 µl 25.0 µl 0.05 ml 0.10 ml 0.25 ml 0.50 ml 1.00 ml 2.50 ml 5.00 ml 10.0 ml

0 0.19 0.48 0.97 1.94 4.84 9.68 19.37 48.41 96.82 193.65

1 0.00 0.00 0.01 0.02 0.05 0.09 0.19 0.48 0.95 1.90

2 0.00 0.01 0.02 0.04 0.10 0.19 0.38 0.95 1.90 3.80

5 0.01 0.02 0.05 0.10 0.24 0.47 0.95 2.38 4.75 9.50

10 0.02 0.05 0.09 0.19 0.48 0.95 1.90 4.75 9.50 19.00

20 0.04 0.10 0.19 0.38 0.95 1.90 3.80 9.50 19.00 38.00

30 0.06 0.14 0.28 0.57 1.43 2.85 5.70 14.25 28.50 57.00

40 0.08 0.19 0.38 0.76 1.90 3.80 7.60 19.00 38.00 76.00

50 0.10 0.24 0.47 0.95 2.38 4.75 9.50 23.75 47.50 95.00

60 0.11 0.29 0.57 1.14 2.85 5.70 11.40 28.50 57.00 114.00

70 0.13 0.33 0.66 1.33 3.33 6.65 13.30 33.25 66.50 133.00

80 0.15 0.38 0.76 1.52 3.80 7.60 15.20 38.00 76.00 152.00

90 0.17 0.43 0.85 1.71 4.28 8.55 17.10 42.75 85.50 171.00

99 0.19 0.47 0.94 1.88 4.70 9.40 18.81 47.03 94.05 188.10



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Unimetrics, Glass

Pushbutton Setting

Syringe Size

0.05 ml 0.10 ml 0.25 ml 0.50 ml 1.00 ml

0 0.97 1.94 4.84 9.68 19.37

1 0.01 0.02 0.05 0.09 0.19

2 0.02 0.04 0.10 0.19 0.38

5 0.05 0.10 0.24 0.47 0.95

10 0.09 0.19 0.48 0.95 1.90

20 0.19 0.38 0.95 1.90 3.80

30 0.28 0.57 1.43 2.85 5.70

40 0.38 0.76 1.90 3.80 7.60

50 0.47 0.95 2.38 4.75 9.50

60 0.57 1.14 2.85 5.70 11.40

70 0.66 1.33 3.33 6.65 13.30

80 0.76 1.52 3.80 7.60 15.20

90 0.85 1.71 4.28 8.55 17.10

99 0.94 1.88 4.70 9.40 18.81

Monoject, Plastic

Pushbutton Setting

Syringe Size

1.00 ml 3.00 ml 6.00 ml 12.0 ml 20.0 ml 35.0 ml 60.0 ml

0 20.10 72.27 146.75 229.71 384.36 519.83 644.27

1 0.20 0.71 1.44 2.25 3.77 5.10 6.32

2 0.39 1.42 2.88 4.51 7.54 10.20 12.64

5 0.99 3.55 7.20 11.27 18.86 25.50 31.61

10 1.97 7.09 14.40 22.54 37.71 51.00 63.21

20 3.94 14.18 28.80 45.08 75.42 102.01 126.43

30 5.92 21.27 43.19 67.61 113.13 153.01 189.64

40 7.89 28.36 57.59 90.15 150.84 204.01 252.85

50 9.86 35.45 71.99 112.69 188.56 255.02 316.07

60 11.83 42.54 86.39 135.23 226.27 306.02 379.28

70 13.81 49.64 100.79 157.76 263.98 357.03 442.49

80 15.78 56.73 115.19 180.30 301.69 408.03 505.70

90 17.75 63.82 129.58 202.84 339.40 459.03 568.92

99 19.52 70.20 142.54 223.12 373.34 504.94 625.81



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B-D, Plastic

Pushbutton Setting

Syringe Size

1.00 ml 2.50 ml 5.00 ml 10.0 ml 20.0 ml 30.0 ml 60.0 ml

0 20.10 67.16 131.18 189.97 331.14 425.49 645.55

1 0.20 0.66 1.29 1.86 3.25 4.17 6.33

2 0.39 1.32 2.57 3.73 6.50 8.35 12.67

5 0.99 3.29 6.44 9.32 16.25 20.87 31.67

10 1.97 6.59 12.87 18.64 32.49 41.75 63.34

20 3.94 13.18 25.74 37.28 64.98 83.49 126.68

30 5.92 19.77 38.61 55.92 97.47 125.24 190.02

40 7.89 26.36 51.48 74.56 129.96 166.99 253.35

50 9.86 32.95 64.35 93.20 162.45 208.73 316.69

60 11.83 39.54 77.22 111.83 194.94 250.48 380.03

70 13.81 46.12 90.09 130.47 227.43 292.23 443.37

80 15.78 52.71 102.96 149.11 259.92 333.97 506.71

90 17.75 59.30 115.84 167.75 292.41 375.72 570.05

99 19.52 65.23 127.42 184.53 321.65 413.29 627.05

Terumo, Plastic

Pushbutton Setting

Syringe Size

3.00 ml 5.00 ml 10.0 ml 20.0 ml 30.0 ml 60.00 ml

0 73.08 154.18 227.85 370.53 486.95 772.78

1 0.72 1.51 2.24 3.64 4.78 7.58

2 1.43 3.03 4.47 7.27 9.56 15.16

5 3.59 7.56 11.18 18.18 23.89 37.91

10 7.17 15.13 22.36 36.35 47.78 75.82

20 14.34 30.26 44.71 72.71 95.55 151.64

30 21.51 45.38 67.07 109.06 143.33 227.46

40 28.68 60.51 89.42 145.42 191.11 303.29

50 35.85 75.64 111.78 181.77 238.89 379.11

60 43.02 90.77 134.13 218.13 286.66 454.93

70 50.19 105.89 156.49 254.48 334.44 530.75

80 57.36 121.02 178.84 290.84 382.22 606.57

90 64.54 136.15 201.20 327.19 430.00 682.39

99 70.99 149.77 221.32 359.91 473.00 750.63

APPENDIX B | CONTACT INFORMATION Please contact Med Associates, Inc. for information regarding any of our products.

Visit our website at www.med-associates.com for contact information.

For technical questions, email [email protected].


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