Fluid container measurement system employing load cell linkage member

• US 9,995,619 B2
• Filed: 04/17/2017
• Issued: 06/12/2018
• Est. Priority Date: 05/13/2016
• Status: Active Grant

• Current Assignee: Adaptec Medical Devices LLC (Becton, Dickinson & Co)
• Original Assignee: Adaptec Medical Devices LLC (Becton, Dickinson & Co)
• Inventors: Parker, Walter Dan, Mueller, Edward James, Gausmann, Keith Hobart, Luck, Nathan Thomas, Liddle, Scott Eric
• Primary Examiner(s): Noori, Max
• Application Number:
  US15/489,215
• Publication Number:
  US 20170328763A1
• Time in Patent Office: 421 Days
• Field of Search: 7386268
• CPC Class Codes: A61B 5/208 adapted to determine urine quantity, e.g. flow, volume
• CPC Class Codes: G01G 17/04 for weighing fluids, e.g. gases, pastes
• CPC Class Codes: G01G 19/14 for weighing suspended loads G01G3/00 takes precedence; incorporation of weighing devices in cranes B66C1/40, B66C13/16
• CPC Class Codes: G01G 19/18 having electrical weight-sensitive devices
• CPC Class Codes: G01G 21/23 Support or suspension of weighing platforms G01G21/24 takes precedence
• CPC Class Codes: G01G 23/36 Indicating the weight by electrical means, e.g. using photoelectric cells
• CPC Class Codes: G01V 8/10 Detecting, e.g. by using light barriers by reflection from the object G01S17/00
• CPC Class Codes: G08B 21/18 Status alarms G08B21/02 takes precedence
• CPC Class Codes: G16H 40/63 for local operation

Abstract

A fluid container measurement system employing a load cell linkage member is disclosed. The fluid container measurement system is configured to suspend a load measurement assembly a distance above a support surface. The load measurement assembly houses a load cell and a measurement control circuit. The measurement control circuit is coupled to the load cell and configured to receive electrical signals indicative of a force imposed on the load cell. The load measurement assembly also includes or is configured to receive a load cell linkage member mechanically linked to the load cell. In this manner, a load placed on the load cell linkage member will be exerted on the load cell. Electrical signals generated by the load cell indicative of the force exerted on the load cell can be used to measure the fluid container attached to the load cell linkage member.

Claims

1. A fluid container measurement system, comprising:

a load measurement assembly configured to be suspended a distance above a support surface, the load measurement assembly comprising;

a load cell having a principal load axis substantially orthogonal to the ground;

a measurement control circuit electrically coupled to the load cell, the measurement control circuit configured to receive electrical signals from the load cell indicative of a force imposed on the load cell;

a measurement electrical interface electrically coupled to the measurement control circuit; and

a load cell interconnect mechanically linked to the load cell; and

a load cell linkage member, comprising;

a disposable member interconnect complementary to the load cell interconnect;

a support member configured to support a fluid container;

a disposable member electrical circuit; and

a disposable member electrical interface electrically coupled to the disposable member electrical circuit;

the load cell interconnect configured to receive the disposable member interconnect to attach the load cell linkage member to the load cell interconnect to provide a mechanical linkage between the support member of the load cell linkage member and the load cell, and dispose the support member of the load cell linkage member within a defined angular range about the principal load axis of the load cell when the disposable member electrical interface is electrically coupled to the measurement electrical interface.

2. The fluid container measurement system of claim 1, wherein the load cell linkage member comprises a disc-shaped body, the support member attached to the disc-shaped body.

3. The fluid container measurement system of claim 2, wherein the support member comprises a concave-shaped member attached to the disc-shaped body of the load cell linkage member, the concave-shaped member configured to support the fluid container.

4. The fluid container measurement system of claim 1, wherein:

the disposable member interconnect comprises a first twist-lock interconnect; and

the load cell interconnect comprises a second twist-lock interconnect configured to receive the first twist-lock interconnect.

5. The fluid container measurement system of claim 1, wherein the disposable member interconnect is configured to be received by the load cell interconnect, wherein the disposable member interconnect is configured to be rotated about the load cell interconnect in a rotational axis to secure the disposable member interconnect to the load cell interconnect.

6. The fluid container measurement system of claim 1, wherein the disposable member interconnect is configured to be initially received by the load cell interconnect with the support member in an initial position, wherein the disposable member interconnect is configured to be rotated about the load cell interconnect in a rotational axis to secure the disposable member interconnect to the load cell interconnect and place the support member in a measurement position towards the support surface when the disposable member electrical interface is electrically coupled to the measurement electrical interface.

7. The fluid container measurement system of claim 6, wherein the disposable member interconnect is configured to be rotated from the initial position approximately 180 degrees about the load cell interconnect into the measurement position.

8. The fluid container measurement system of claim 1, wherein the measurement electrical interface is externally exposed from the load cell interconnect.

9. The fluid container measurement system of claim 1, wherein the load cell linkage member further comprises a body comprising:

the disposable member interconnect complementary to the load cell interconnect;

the disposable member electrical circuit; and

the disposable member electrical interface electrically coupled to the disposable member electrical circuit; and

the disposable member electrical interface exposed externally from the body.

10. The fluid container measurement system of claim 1, wherein:

the measurement control circuit comprises a circuit board; and

the load cell interconnect further comprises;

a load cell interconnect shell comprising an interconnect cavity configured to receive the circuit board; and

a load cell interconnect interface configured to be secured to the load cell interconnect shell to secure the circuit board in the interconnect cavity.

11. The fluid container measurement system of claim 1, further comprising an opening in the load cell interconnect such that the measurement electrical interface is exposed through the opening.

12. The fluid container measurement system of claim 1, wherein the measurement control circuit is configured to measure a load on the load cell based on the received electrical signals from the load cell.

13. The fluid container measurement system of claim 1, wherein the measurement control circuit is configured to detect the disposable member electrical interface electrically coupled to the measurement electrical interface.

14. The fluid container measurement system of claim 13, wherein the disposable member electrical circuit comprises a memory configured to store an identification indicia.

15. The fluid container measurement system of claim 14, wherein the measurement control circuit is further configured to, in response to detecting the disposable member electrical interface electrically coupled to the measurement electrical interface:

read the stored identification indicia from the memory;

determine if the read stored identification indicia is an authorized identification indicia; and

in response to determining that the read stored identification indicia is authorized, measure a load on the load cell based on the received electrical signals from the load cell.

16. The fluid container measurement system of claim 15, wherein in response to the measurement control circuit determining that the read stored identification indicia is not authorized, the measurement control circuit is further configured to not measure the load on the load cell based on the received electrical signals from the load cell.

17. The fluid container measurement system of claim 16, wherein in response to the measurement control circuit determining that the read stored identification indicia is not authorized, the measurement control circuit is further configured to generate an alert to a display that the load cell linkage member is invalid.

18. The fluid container measurement system of claim 14, wherein:

the load measurement assembly further comprises an input device electrically coupled to the measurement control circuit, the input device configured to receive a patient identifier entered by a user; and

the measurement control circuit is further configured to;

receive the patient identifier entered into the input device by the user; and

in response to detecting the disposable member electrical interface electrically coupled to the measurement electrical interface;

read the stored identification indicia from the memory;

determine if the read stored identification indicia matches the entered patient identifier; and

in response to determining that the read stored identification indicia matches the entered patient identifier, measure a load on the load cell based on the received electrical signals from the load cell.

19. The fluid container measurement system of claim 18, wherein in response to the measurement control circuit determining that the read stored identification indicia does not match the entered patient identifier, the measurement control circuit is further configured to generate an alert to a display that the load cell linkage member is invalid.

20. The fluid container measurement system of claim 14, wherein the measurement control circuit is further configured to write a tag to the memory after measuring a load on the support member based on the received electrical signals from the load cell.

21. The fluid container measurement system of claim 12, wherein the measurement control circuit is further configured to:

detect if the disposable member electrical interface is electrically coupled to the measurement electrical interface;

measure a first load on the load cell in response to detecting that the disposable member electrical interface is not electrically coupled to the measurement electrical interface;

store a calibration value in a memory based on the measured first load; and

measure a second load on the load cell in response to detecting that the disposable member electrical interface is electrically coupled to the measurement electrical interface, based on a difference in the measured first load and the measured second load.

22. The fluid container measurement system of claim 1, further comprising a display attached to the load measurement assembly, the display electrically coupled to the measurement control circuit.

23. The fluid container measurement system of claim 1, wherein:

the load measurement assembly further comprises a tether support member interface disposed in a plane above the load cell interconnect with respect to the ground, the tether support member interface configured to receive a tether support member configured to support a tube from the fluid container supported by the support member of the load cell linkage member,

the tether support member is electrically coupled to the measurement control circuit; and

the tether support member is electrically coupled to the measurement control circuit when the tether support member is inserted into the tether support member interface.

24. The fluid container measurement system of claim 23, wherein the measurement control circuit is further configured to detecting the tether support member inserted into the tether support member interface.

25. The fluid container measurement system of claim 24, wherein in response to detecting the tether support member inserted into the tether support member interface, the measurement control circuit is further configured to measure a load on the load cell based on the received electrical signals from the load cell.

26. The fluid container measurement system of claim 24, wherein in response to detecting the tether support member not being inserted into the tether support member interface, the measurement control circuit is further configured to not measure a load on the tether support member based on the received electrical signals from the load cell.

27. The fluid container measurement system of claim 23, wherein:

the tether support member interface comprises an opening; and

the tether support member comprises an opposing pair of cantilevered arms each comprising an inward biased member to be inserted into the tether support member interface comprising the opening such that the cantilevered arms are bent inward to each other as the inward biased members pass through the opening of the tether support member interface.

28. The fluid container measurement system of claim 27, wherein the measurement control circuit is configured to:

obtain a load measurement from the load cell;

if the load measurement is less than a difference between a previous baseline load measurement and a baseline reset threshold load measurement, set a new baseline load measurement equal to the load measurement;

if the load measurement is greater than the previous baseline load measurement plus a noise floor threshold load measurement;

add a difference between the load measurement and the previous baseline load measurement to a running total; and

set a new baseline load measurement equal to the load measurement.

29. The fluid container measurement system of claim 28, wherein the load measurement comprises an average of a plurality of recent load measurements.

30. The fluid container measurement system of claim 28, wherein the load measurement control circuit is further configured to obtain additional recent load measurements if a range of the plurality of recent load measurements is not less than a stability threshold load measurement.

31. The fluid container measurement system of claim 28, wherein the measurement control circuit is further configured to alert a user of a sudden increase if a difference between the load measurement and a previous load measurement is greater than a sudden increase threshold load measurement.

32. The fluid container measurement system of claim 28, wherein the measurement control circuit is further configured to alert a user of a fluid container removal if a difference between a previous load measurement and the load measurement is greater than an empty fluid container weight.

33. The fluid container measurement system of claim 28, wherein the measurement control circuit is further configured to alert a user of a sudden decrease if a difference between a previous load measurement and the load measurement is greater than a sudden decrease threshold load measurement.

34. The fluid container measurement system of claim 28, wherein:

the load measurement comprises a weight measurement; and

the previous baseline load measurement comprises a baseline weight measurement.

35. The fluid container measurement system of claim 28, wherein the running total comprises a running total of urine weight.

36. The fluid container measurement system of claim 28, further comprising a tube strain relief comprising a slot member configured to receive a tube.

37. The fluid container measurement system of claim 36, further comprising an optical sensor configured to detect whether the tube is secured to the tube strain relief.

38. The fluid container measurement system of claim 37, wherein the optical sensor comprises an infrared sensor.

39. The fluid container measurement system of claim 1, wherein the measurement control circuit is configured to:

obtain a load measurement from the load cell;

if the load measurement is less than a difference between a previous baseline load measurement and a baseline reset threshold load measurement, set a new baseline load measurement equal to the load measurement;

if the load measurement is greater than the previous baseline load measurement plus a noise floor threshold load measurement;

add a difference between the load measurement and the previous baseline load measurement to a running total; and

set a new baseline load measurement equal to the load measurement.

40. The fluid container measurement system of claim 39, wherein the load measurement comprises an average of a plurality of recent load measurements.

41. The fluid container measurement system of claim 39, wherein the load measurement control circuit is further configured to obtain additional recent load measurements if a range of the plurality of recent load measurements is not less than a stability threshold load measurement.

42. The fluid container measurement system of claim 39, wherein the measurement control circuit is further configured to alert a user of a sudden increase if a difference between the load measurement and a previous load measurement is greater than a sudden increase threshold load measurement.

43. The fluid container measurement system of claim 39, wherein the measurement control circuit is further configured to alert a user of a fluid container removal if a difference between a previous load measurement and the load measurement is greater than an empty fluid container weight.

44. The fluid container measurement system of claim 39, wherein the measurement control circuit is further configured to alert a user of a sudden decrease if a difference between a previous load measurement and the load measurement is greater than a sudden decrease threshold load measurement.

45. The fluid container measurement system of claim 39, wherein:

the load measurement comprises a weight measurement; and

the previous baseline load measurement comprises a baseline weight measurement.

46. The fluid container measurement system of claim 39, wherein the running total comprises a running total of urine weight.

47. The fluid container measurement system of claim 39, further comprising a tube strain relief comprising a slot member configured to receive a tube.

48. The fluid container measurement system of claim 47, further comprising an optical sensor configured to detect whether the tube is secured to the tube strain relief.

49. The fluid container measurement system of claim 48, wherein the optical sensor comprises an infrared sensor.

50. The fluid container measurement system of claim 14, wherein the load measurement assembly further comprises at least one integrated tube strain relief comprising a slot member configured to receive a tube.

51. A method of measuring a fluid container, comprising:

attaching a disposable member interconnect of a load cell linkage member comprising a support member, to a complementary load cell interconnect of a load measurement assembly in an initial position, to mechanically link the load cell linkage member to the load cell interconnect mechanically linked to a load cell having a principal load axis substantially orthogonal to the ground;

manipulating the load cell linkage member to place the disposable member interconnect into a measurement position about the load cell interconnect such that a disposable member electrical interface electrically coupled to a disposable member electrical circuit in the load cell linkage member is electrically coupled to a measurement electrical interface electrically coupled to a measurement control circuit in the load measurement assembly wherein the support member is located within a defined angular range about the principal load axis of the load cell;

attaching a fluid container to be measured to the support member of the load cell linkage member in the measurement position such that a load of the fluid container applies a force to the load cell through mechanical linkage within the defined angular range about the principal load axis of the load cell when the disposable member electrical interface is electrically coupled to the measurement electrical interface;

detecting if the disposable member electrical interface in the load cell linkage member is electrically coupled to the measurement electrical interface in the load measurement assembly; and

in response to detecting that the disposable member electrical interface is electrically coupled to the measurement electrical interface, the measurement control circuit measuring the fluid container based on an electrical signal received from the load cell indicative of force of the fluid container imposed on the load cell.

52. The method of claim 51, wherein manipulating the load cell linkage member further comprises rotating the disposable member interconnect about the load cell interconnect to place the disposable member interconnect into the measurement position about the load cell interconnect.

53. The method of claim 51, wherein:

attaching the disposable member interconnect further comprises attaching the disposable member interconnect of the load cell linkage member to place the support member in a upward position in the initial position; and

manipulating the load cell linkage member further comprises placing the disposable member interconnect into the measurement position such that the support member is disposed in a downward position in the measurement position.

54. The method of claim 51, further comprising the measurement control circuit measuring the load on the load cell based on the received electrical signals from the load cell.

55. The method of claim 51, further comprising the disposable member electrical circuit storing an identification indicia in a memory.

56. The method of claim 55, further comprising, in response to detecting the disposable member electrical interface electrically coupled to the measurement electrical interface, the measurement control circuit:

reading the stored identification indicia from the memory;

determining if the read stored identification indicia is an authorized identification indicia; and

in response to determining that the read stored identification indicia is authorized, measuring the load on the load cell based on the received electrical signals from the load cell.

57. The method of claim 56, wherein in response to determining that the read stored identification indicia is not authorized, further comprising the measurement control circuit not measuring the load on the load cell based on the received electrical signals from the load cell.

58. The method of claim 57, wherein in response to determining that the read stored identification indicia is not authorized, further comprising the measurement control circuit generating an alert to a display that the load cell linkage member is invalid.

59. The method of claim 55, further comprising:

receiving a patient identifier entered by a user on an input device on the load measurement assembly;

storing the received patient identifier in the memory in the disposable member electrical circuit; and

in response to detecting the disposable member electrical interface electrically coupled to the measurement electrical interface, the measurement control circuit;

reading the stored identification indicia from the memory;

determining if the read stored identification indicia matches the entered patient identifier; and

in response to determining that the read stored identification indicia matches the entered patient identifier, measuring the load on the load cell based on the received electrical signals from the load cell.

60. The method of claim 59, wherein in response to determining that the read stored identification indicia does not match the entered patient identifier, further comprising the measurement control circuit generating an alert to a display that the load cell linkage member is invalid.

61. The method of claim 56, further comprising the measurement control circuit writing a tag to the memory of the disposable member electrical circuit after measuring the load on the support member based on the received electrical signals from the load cell.

62. The method of claim 54, further comprising the measurement control circuit:

detecting if the disposable member electrical interface is electrically coupled to the measurement electrical interface;

measuring a first load on the load cell in response to detecting that the disposable member electrical interface is not electrically coupled to the measurement electrical interface;

storing a calibration value in a memory based on the measured first load; and

measuring a second load on the load cell in response to detecting that the disposable member electrical interface is electrically coupled to the measurement electrical interface, based on a difference in the measured first load and the measured second load.

63. A fluid container measurement system, comprising:

a load measurement assembly configured to be suspended a distance above a support surface, the load measurement assembly comprising;

a load cell having a principal load axis substantially orthogonal to the ground; and

a load cell linkage member mechanically linked to the load cell, the load cell linkage member configured to support a fluid container such that a force of the fluid container on the load cell linkage member is translated to the load cell; and

a tether support member interface disposed in a plane above the load cell with respect to the ground, the tether support member interface configured to provide a tether support member configured to receive a portion of a tube such that a lower portion of the tube of a defined length is disposed above and between the tether support member interface and the fluid container.

64. The fluid container measurement system of claim 63, further comprising the tether support member configured to supportably receive the portion of the tube such that weight of the lower portion of the tube of the defined length is substantially translated to the force of the fluid container and the load cell linkage member.

65. The fluid container measurement system of claim 63, wherein the tether support member further comprises a slot member configured to receive the tube.

66. The fluid container measurement system of claim 65, wherein the slot member is formed from a circular-shaped member having an inside surface and comprising an opening supporting the tube inside the opening and abutting the inside surface of the circular-shaped member.

67. The fluid container measurement system of claim 64, wherein:

the tether support member interface comprises an opening; and

the tether support member comprises an opposing pair of cantilevered arms each comprising an inward biased member to be inserted into the tether support member interface comprising the opening such that the cantilevered arms are bent inward to each other as the inward biased members pass through the opening of the tether support member interface.

68. The fluid container measurement system of claim 63, wherein:

the load measurement assembly further comprises;

a measurement control circuit electrically coupled to the load cell, the measurement control circuit configured to receive electrical signals from the load cell indicative of the force imposed on the load cell; and

the tether support member interface electrically coupled to the measurement control circuit; and

the tether support member is electrically coupled to the measurement control circuit when the tether support member is inserted into the tether support member interface.

69. The fluid container measurement system of claim 68, wherein the measurement control circuit is further configured to detect the tether support member inserted into the tether support member interface.

70. The fluid container measurement system of claim 69, wherein in response to detecting the tether support member inserted into the tether support member interface, the measurement control circuit is further configured to measure a load on the load cell based on the received electrical signals from the load cell.

71. The fluid container measurement system of claim 69, wherein in response to detecting the tether support member not being inserted into the tether support member interface, the measurement control circuit is further configured to not measure a load on the tether support member based on the received electrical signals from the load cell.

72. The fluid container measurement system of claim 63, wherein:

the load measurement assembly further comprises;

a measurement control circuit electrically coupled to the load cell, the measurement control circuit configured to receive electrical signals from the load cell indicative of the force imposed on the load cell;

a measurement electrical interface electrically coupled to the measurement control circuit; and

a load cell interconnect mechanically linked to the load cell; and

the load cell linkage member, comprising;

a disposable member interconnect complementary to the load cell interconnect;

a support member configured to support the fluid container;

a disposable member electrical circuit; and

a disposable member electrical interface electrically coupled to the disposable member electrical circuit; and

the load cell interconnect configured to receive the disposable member interconnect to attach the load cell linkage member to the load cell interconnect to provide a mechanical linkage between the support member of the load cell linkage member and the load cell, and dispose the support member of the load cell linkage member within a defined angular range about the principal load axis of the load cell when the disposable member electrical interface is electrically coupled to the measurement electrical interface.

73. The fluid container measurement system of claim 72, wherein the load cell linkage member comprises a disc-shaped body, the support member attached to the disc-shaped body.

74. The fluid container measurement system of claim 73, wherein the support member comprises a concave-shaped member attached to the disc-shaped body of the load cell linkage member, the concave-shaped member configured to support the fluid container.

75. The fluid container measurement system of claim 72, wherein the disposable member interconnect is configured to be initially received by the load cell interconnect with the support member in an initial position, wherein the disposable member interconnect is configured to be rotated about the load cell interconnect in a rotational axis to secure the disposable member interconnect to the load cell interconnect and place the support member in a measurement position towards the support surface when the disposable member electrical interface is electrically coupled to the measurement electrical interface.

76. The fluid container measurement system of claim 72, wherein the measurement control circuit is configured to measure a load on the load cell based on the received electrical signals from the load cell.

77. The fluid container measurement system of claim 72, wherein the measurement control circuit is configured to detect the disposable member electrical interface electrically coupled to the measurement electrical interface.

78. The fluid container measurement system of claim 76, wherein the measurement control circuit is further configured to:

detect if the disposable member electrical interface is electrically coupled to the measurement electrical interface;

measure a first load on the load cell in response to detecting that the disposable member electrical interface is not electrically coupled to the measurement electrical interface;

store a calibration value in a memory based on the measured first load; and

measure a second load on the load cell in response to detecting that the disposable member electrical interface is electrically coupled to the measurement electrical interface, based on a difference in the measured first load and the measured second load.

79. A fluid container measurement system, comprising:

a load measurement assembly configured to be suspended a distance above a support surface, the load measurement assembly comprising;

a load cell having a principal load axis substantially orthogonal to the ground;

a measurement control circuit electrically coupled to the load cell, the measurement control circuit configured to receive electrical signals from the load cell indicative of a force imposed on the load cell;

a measurement electrical interface electrically coupled to the measurement control circuit; and

a load cell interconnect mechanically linked to the load cell;

wherein the measurement control circuit is configured to;

obtain a load measurement from the load cell;

if the load measurement is less than a difference between a previous baseline load measurement and a baseline reset threshold load measurement, set a new baseline load measurement equal to the load measurement; and

if the load measurement is greater than the previous baseline load measurement plus a noise floor threshold load measurement;

add a difference between the load measurement and the previous baseline load measurement to a running total; and

set a new baseline load measurement equal to the load measurement.

80. The fluid container measurement system of claim 79, wherein the load measurement comprises an average of a plurality of recent load measurements.

81. The fluid container measurement system of claim 79, wherein the load measurement control circuit is further configured to obtain additional recent load measurements if a range of the plurality of recent load measurements is not less than a stability threshold.

82. The fluid container measurement system of claim 79, wherein the measurement control circuit is further configured to alert a user of a sudden increase if a difference between the load measurement and a previous load measurement is greater than a sudden increase threshold.

83. The fluid container measurement system of claim 79, wherein the measurement control circuit is further configured to alert a user of a fluid container removal if a difference between a previous load measurement and the load measurement is greater than an empty fluid container weight.

84. The fluid container measurement system of claim 79, wherein the measurement control circuit is further configured to alert a user of a sudden decrease if a difference between a previous load measurement and the load measurement is greater than a sudden decrease threshold load measurement.

85. The fluid container measurement system of claim 79, wherein:

the load measurement comprises a weight measurement; and

the previous baseline load measurement comprises a baseline weight measurement.

86. The fluid container measurement system of claim 79, wherein the running total comprises a running total of urine weight.

87. The fluid container measurement system of claim 79, further comprising a tube strain relief comprising a slot member configured to receive a tube.

88. The fluid container measurement system of claim 87, further comprising an optical sensor configured to detect whether the tube is secured to the tube strain relief.

89. The fluid container measurement system of claim 88, wherein the optical sensor comprises an infrared sensor.

90. A method of measuring a fluid container, comprising:

attaching a fluid container to be measured to a support member of a load cell linkage member of a load measurement assembly, the load cell linkage member in a measurement position such that a load of the fluid container applies a force to a load cell through mechanical linkage within a defined angular range about a principal load axis of the load cell;

obtaining a load measurement, by the measurement control circuit in the load measurement assembly, by measuring the fluid container based on an electrical signal received from the load cell indicative of force of the fluid container imposed on the load cell;

setting, by the measurement control circuit, a new baseline load measurement equal to the load measurement if the load measurement is less than a difference between a previous baseline load measurement and a baseline reset threshold load measurement;

adding, by the measurement control circuit, a difference between the load measurement and the previous baseline load measurement to a running total if the load measurement is greater than the previous baseline load measurement plus a noise floor threshold load measurement; and

setting, by the measurement control circuit, a new baseline load measurement equal to the load measurement if the load measurement is greater than the previous baseline load measurement plus the noise floor threshold load measurement.

91. The method of claim 90, wherein the load measurement comprises an average of a plurality of recent load measurements.

92. The method of claim 90, further comprising obtaining, by the measurement control circuit, additional recent load measurements if a range of the plurality of recent load measurements is not less than a stability threshold load measurement.

93. The method of claim 90, further comprising alerting, by the measurement control circuit, a user of a sudden increase if a difference between the load measurement and a previous load measurement is greater than a sudden increase threshold load measurement.

94. The method of claim 90, further comprising alerting, by the measurement control circuit, a user of a fluid container removal if a difference between a previous load measurement and the load measurement is greater than an empty fluid container weight.

95. The method of claim 90, further comprising alerting, by the measurement control circuit, a user of a sudden decrease if a difference between a previous load measurement and the load measurement is greater than a sudden decrease threshold load measurement.

96. The method of claim 90, wherein:

the load measurement comprises a weight measurement; and

the previous baseline load measurement comprises a baseline weight measurement.

97. The method of claim 90, wherein the running total comprises a running total of urine weight.

98. The method of claim 90, further comprising detecting, by an optical sensor of the load measurement assembly, whether a tube in fluid communication with the fluid container is secured within a slot member of a tube strain relief of the load measurement assembly.