Infusion pump system

Abstract

A mobile modular infusion pump system is provided that includes a housing having a housing front and a housing back, a controller coupled to the housing front, and one or more pump modules disposed within the housing. Each pump module includes a door assembly that includes a door having a door lock, a channel housing, a cassette gasket, at least one sensor, a plurality of pump fingers, a frame assembly, and a motor. One or more button assemblies are disposed on the housing front, each button assembly including a button disposed proximate to a respective pump module and configured to release the door of the respective pump module when the button is moved to a release position. Methods of single-handed operation and configuration of the mobile modular infusion pump system are also provided.

Description

TECHNICAL FIELD

[0001] The present disclosure relates generally to infusion pumps, and more particularly to a mobile modular infusion pump. BACKGROUND

[0002] Medical fluid infusion has been widely used in the medical field for intravenous (IV), epidural, and enteral applications. Such fluid infusion can be provided by a typical infusion pump, such as a large volume pump (LVP). Infusion pumps typically use a linear peristaltic or similar type of mechanism that creates pressure by squeezing an IV tubing set, which causes the IV medication to flow through the IV tubing set and ultimately into a patient, thereby creating a pumping action. The squeezing action can also be used as a mechanism to shut off flow. This is used in pumping mechanisms that operate in a cyclical manner with a cycle that includes a priming portion and a delivery portion. Typical infusion pumps are manufactured for use in a relatively stable, clean environment, such as a city hospital or clinic. In addition, typical infusion pumps are complex systems that are not designed to be disassembled in the field and require special tools for maintenance by a trained technician.

[0003] However, there is a need for infusion pumps in field environments, such as forward military base treatment areas or transport vehicles or aircraft, and the ability to withstand vibration, moisture, and dust when operated properly. For these reasons, it is desirable to provide a compact mobile modular infusion pump system that is ruggedized to withstand environmental conditions, has pump modules that are easily replaceable, and allows a medical provider to operate it with one hand. BRIEF DESCRIPTION OF DRAWINGS

[0004] The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure, and together with the description serve to explain the principles of the present disclosure.

[0005] Figure 1 A perspective view of an exemplary patient care system having four fluid infusion pumps each connected to a respective fluid source for pumping contents of the fluid source to a patient in accordance with aspects of the present disclosure is described.

[0006] Figure 2 A perspective view of a mobile modular infusion pump system in accordance with aspects of the present disclosure is described.

[0007] Figure 3 A front view of a mobile modular infusion pump system in accordance with aspects of the present disclosure is described. Figure 2

[0008] Figure 4 A rear view of a mobile modular infusion pump system in accordance with aspects of the present disclosure is described. Figure 2 A rear view of a mobile modular infusion pump system in accordance with aspects of the present disclosure is described.​

[0009] Figure 5 A top view of a mobile modular infusion pump system according to aspects of the present disclosure is described. Figure 2

[0010] Figure 6 A bottom view of a mobile modular infusion pump system according to aspects of the present disclosure is described. Figure 2

[0011] Figure 7 A side view of a mobile modular infusion pump system according to aspects of the present disclosure is described. Figure 2

[0012] Figure 8 An exploded perspective view of a mobile modular infusion pump housing according to aspects of the present disclosure is described.

[0013] Figure 9 An exploded perspective view of an infusion pump module according to aspects of the present disclosure is described.

[0014] Figure 10 A perspective view of an infusion pump module according to aspects of the present disclosure is described. Figure 9

[0015] Figure 11 Another perspective view of an infusion pump module according to aspects of the present disclosure is described. Figure 9

[0016] An exploded partial perspective view of a mobile modular infusion pump system according to aspects of the present disclosure is described. Figure 12 Figure 2 A perspective partial view of a mobile modular infusion pump system according to aspects of the present disclosure is described, mounted with a tubing set case.

[0017] Figure 13 Figure 2 A front view of a mobile modular infusion pump system according to aspects of the present disclosure is described, showing a door of a module in a latched position.

[0018] Figure 14 A front view of a mobile modular infusion pump system according to aspects of the present disclosure is described, showing a door of a module in a latched position. Figure 2

[0019] An exploded perspective view of a door latching mechanism according to aspects of the present disclosure is described, which can be included in a module of a mobile modular infusion pump system according to aspects of the present disclosure. Figure 15 Figure 2 A perspective view of a door latching mechanism according to aspects of the present disclosure is described, which can be included in a module of a mobile modular infusion pump system according to aspects of the present disclosure.

[0020] Figure 16 Figure 2 A perspective view of a door latching mechanism according to aspects of the present disclosure is described, which can be included in a module of a mobile modular infusion pump system according to aspects of the present disclosure. ​​​​​​​​

[0021] Figure 17 is a graphical representation of upstream sensor data from operation of the mobile modular infusion pump system of Figure 2 .

[0022] Figure 18 is a graphical representation of additional upstream sensor data from operation of the mobile modular infusion pump system of Figure 2 .

[0023] Figure 19 is a graphical representation of downstream sensor data from operation of the mobile modular infusion pump system of Figure 2 .

[0024] Figure 20 is a graphical representation of additional downstream sensor data from operation of the mobile modular infusion pump system of Figure 2 .

[0025] Figure 21 is a graphical representation of upstream / downstream sensor independence data from operation of the mobile modular infusion pump system of Figure 2 .

[0026] Figure 22 is a graphical representation of flow data from operation of the mobile modular infusion pump system of Figure 2 .

[0027] Figure 23 is a graphical representation of additional flow data from operation of the mobile modular infusion pump system of Figure 1 . DETAILED DESCRIPTION

[0028] The detailed description set forth below describes various configurations of the subject technology and is not intended to represent the only configurations in which the subject technology can be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of the subject technology. Accordingly, the descriptions provided regarding certain aspects are not intended to be limiting. It will be apparent, however, to one skilled in the art that the subject technology can be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form, rather than in detail, in order to avoid obscuring the concepts of the subject technology.

[0029] It is to be understood that the present disclosure includes examples of the subject technology and does not limit the scope of the appended claims. Various aspects of the subject technology will be illustrated below with reference to specific but non-limiting examples. Various embodiments described in this disclosure can be implemented in different ways and with variations and according to intended applications and implementations.

[0030] Reference will now be made in detail to the drawings, in which identical or corresponding elements are denoted by the same reference numerals throughout the several views, in Figure 1 A patient care system 20 is shown in FIG. 1 having a controller 60 (e.g., a control interface) and four infusion pumps 22, 24, 26, and 28, each in fluid connection with upstream fluid lines 30, 32, 34, and 36, respectively. Each of the four infusion pumps 22, 24, 26, and 28 is also in fluid connection with downstream fluid lines 31, 33, 35, and 37, respectively. The fluid lines can be any type of fluid conduit through which fluid can flow, such as an IV administration set. It will be appreciated that any of a variety of pump mechanisms can be used, including syringe pumps.

[0031] The fluid supplies 38, 40, 42, and 44 can take various forms, but are shown in this case as bottles that are inverted and suspended above the pumps. The fluid supplies can also take the form of bags or other types of containers, including syringes. The patient care system 20 and the fluid supplies 38, 40, 42, and 44 are both mounted on a roller stand, an IV pole 46, a table top, or the like.

[0032] The individual infusion pumps 22, 24, 26, and 28 are used to infuse each of the fluid supplies into a patient. The infusion pumps are flow control devices that will act on the respective fluid lines to deliver fluid from the fluid source through the fluid line to the patient 48. Since independent pumps are used, each pump can be individually set to the pumping or operating parameters necessary to infuse a particular medical fluid from the respective fluid source into the patient at the particular rate prescribed for that fluid by the clinician. Such medical fluids can include medications or nutrients or other fluids.

[0033] The fluid supplies 38, 40, 42, and 44 are each respectively coupled to electronic data tags 81, 83, 85, and 87, or to electronic transmitters. Any device or component associated with the infusion system can be equipped with an electronic data tag, reader, or transmitter.

[0034] Typically, medical fluid administration sets have many more parts than Figures 2-7 are shown. Many have check valves, drip chambers, valves with injection ports, connectors, and other devices well known to those skilled in the art. These other devices are not included in the drawings in order to maintain clarity of the illustration.

[0035] Turning now to Figure 8The movable modular infusion pump system 100 is shown in various views. The movable modular infusion pump system 100 includes a housing 110, a controller 120, and pump modules 130. The movable modular infusion pump system 100 is a compact, portable system and can include ruggedized features such as impact resistance and / or moisture and dust sealing. As such, the movable modular infusion pump system 100 is not limited to use in stable, clean environments (e.g., building-based clinics or hospitals) and can be used in more austere environments in the field (e.g., forward operating base military treatment centers). The movable modular infusion pump system 100 is field serviceable, does not require any special tools, and can be operated by a user (e.g., a health care provider) with one hand. The movable modular infusion pump system 100 can be used in multiple pump configurations. For example, the movable modular infusion pump system 100 can be configured as a dual pump system with two pump modules 130 and an insert to enclose space in the enclosed housing 110 for two additional pump modules 130, thereby maintaining the system’s sealed integrity.

[0036] As shown further, Figure 6 The housing 110 includes a housing front 111 and a housing back 112 on and between which other system components are disposed. For example, the controller 120 can include a keypad 121 disposed on the housing front 111. The keypad 121 can be ruggedized and / or sealed against moisture and dust and can be used with chemically resistant gloves. The controller 120 can also include a display 122, a display / panel mount 123, and a processor circuit board assembly 124, each of which is disposed inside the housing 110 between the housing front 111 and the housing back 112.

[0037] The housing 110 can also include a battery 113 and a battery strap 114 disposed between the housing front 111 and the housing back 112, the battery 113 allowing the movable modular infusion pump system 100 to operate without plugging into an external power source. A cable 125 for electrically connecting the pump modules 130 and the controller 120 can also be disposed between the housing front 111 and the housing back 112. For example, the cable 125 can be two flat flexible cables, each disposed in coupling with two installed pump modules 130. The interior of the housing 110 can also include a power input / audio circuit board assembly 115 for charging the battery 113 and emitting audible signals (e.g., alarms, alerts). The power input / audio circuit board assembly 115 can be coupled to a power connector 115a (see FIG. 2) disposed on a bottom surface of the housing 110. The interior of the housing 110 also includes a gasket seal assembly 116 for providing a seal between the housing front 111 and the housing back 112. Figure 13 The interior of the housing 110 also includes a gasket seal assembly 116 for providing a seal between the housing front 111 and the housing back 112.

[0038] Other system components can be provided external to the housing 110. For example, a button assembly 117 can be provided on the housing front 111, one button assembly 117 for each pump module 130. The button assembly 117 provides the user with simple, one-handed use to operate the corresponding pump module 130 to load and unload a tube set 140 (see Figures 9-11 ), such as the tube set box described in U.S. Patent Application No. 16 / 175,799. For example, the user can lift the button assembly 117 to release the door of the pump module 130, remove the tube set 140 from the pump module 130, lower or dispose of the removed tube set 140, grasp a replacement tube set 140, insert the replacement tube set 140 into the pump module 130, and close the door of the pump module 130, all using only one hand. Thus, the user can remove and replace the tube set 140 while keeping the free hand available to complete another urgent task (e.g., maintain pressure on a wound, place and / or hold a ventilation mask).

[0039] A connector cover 118 (e.g., a USB cover) provided on the housing rear 112 further simplifies operation of the mobile modular infusion pump system 100. For example, the user can rotate the connector cover 118 with a thumb or other finger to plug in an external cable, or vice versa, the user can unplug an external cable and easily rotate the connector cover 118 back to a covering position that protects the seal integrity of the mobile modular infusion pump system 100. A mounting assembly 119 can also be provided on the housing rear 112 to mount and release the mobile modular infusion pump system 100 to a pole or rail.

[0040] Each pump module 130 can be fluidly connected to a fluid source (e.g., 38, 40, 42, 44) via an upstream fluid line (e.g., 30, 32, 34, 36) and can be fluidly connected to a patient via a downstream fluid line (e.g., 31, 33, 35, 37). The pump modules 130 can be pre-assembled and calibrated prior to mounting into the housing 110. Thus, the mobile modular infusion pump system 100 can be configured with one or more pump modules 130 that have already been calibrated and are ready for use without the need for further calibration after mounting into the mobile modular infusion pump system 100.

[0041] As Figure 12 Further, the pump module 130 can include a door assembly 131, a channel housing 132, a cassette gasket 133, an upstream sensor 134, a downstream sensor 135, a pump finger 136, a frame assembly 137, and a motor 138. The pump module 130 is a complete pump assembly that can be inserted or dropped into the space of the housing front 111, and the housing rear 112 can be coupled to the housing front 111 using simple screws (seeFigure 14 ). Thus, the pump module 130 can be removed and / or installed without special tools, and once installed, the pump module 130 is ready to receive the tubing set 140.

[0042] Figure 14 The door assembly 131 of the pump module 130 is shown in the locked position. The button assembly 117 includes an engagement latch 1402 that is coupled to a biasing shaft (not shown) enclosed within the button assembly 117. The engagement latch 1402 can include a bend 1404 or other structure (e.g., one or more protrusions, a ring, etc. for improved friction) that is formed to receive a finger and force from the finger. When a force greater than the biasing force is applied to the biasing shaft, the button assembly 117 can be raised to a position that is higher than the height of the housing 110. This direction of movement is shown by the arrow 1406 in Figure 14 . If the force is removed, the button assembly 117 can quickly return to the position shown in Figure 15 .

[0043] The button assembly 117 includes an engagement portion 1408 that is received by a channel 1552 formed on the door lock 1500. The door lock 1500 includes a shaft with a biasing member (see, e.g., Figure 15 ) that exerts a downward force in the opposite direction of the motion shown by the arrow 1406. This provides an additional point of contact to lock the door assembly 131 of the pump module 130. However, when the button assembly 117 is raised, some of the force is also transferred to the door lock 1500 via the engagement portion 1408, thereby also raising at least a portion of the door lock 1500. Raising the door lock 1500 causes a latch or other securing device to disengage from the door assembly 131 so as to allow the door assembly 131 of the pump module 130 to open, thereby providing access to the interior of the pump module 130.

[0044] Figure 15 Aspects are shown that are included in the door assembly 131, which can be included in the pump module 130 of the movable modular infusion pump system 100. Figure 16The door assembly 131 shown illustrates a door fastener 1500 and an inner surface 1502 of a door 1504 for the pump module 130. The inner surface 1502 includes fastener mounting points 1552a and 1552b. Some embodiments may include fewer or more fastener mounting points. Fastener mounting points 1552a and 1552b may be formed or include rivets, screws, interlocking elements, welds, or other structures to secure the door fastener 1500 to the inner surface 1502 of the door 1504. Corresponding door mounting points 1554a and 1554b are formed on the door fastener 1500. A latch deformation 1508 is also shown in the door 1504. The latch deformation 1508 may receive a portion of the latch extending from the pump module 130 through the door fastener 1500. Examples of such extension include... Figure 14 As shown.

[0045] The door locking component 1500 includes a housing 1532. The housing 1532 includes a knob channel 1534 through which a knob 1536 extends. The knob 1536 includes a channel 1552 that can engage with a button assembly 117, such as... Figure 16 As shown. Housing 1532 includes latch inlet 1538. Latch inlet 1538 can receive a portion of latch 1650 extending from pump module 130 (see Figure 1538). Figure 15 The latch 1650 can engage with a sliding bracket 1550 within the housing 1532. The bracket 1550 may include an eyelet 1554 into which the latch 1650 can engage when the door 1504 is locked. Figure 16 The housing 1532 shown also includes a guide groove 1540. A guide pin 1642 can extend into the guide groove 1540 and limit the range of motion of the door lock 1500.

[0046] Figure 16 A door locking mechanism 1600 is shown, which can be included in the pump module 130 of the movable modular infusion pump system 100. Figure 16 The door locking mechanism 1600 shown provides an example including a door locking element 1500 and a latch 1650 within the pump module 130. The latch 1650 is secured to the pump module 130 and engages with an eyelet 1554 in the bracket 1550 when the door 1504 is in the locked position. Figure 16 Spring 1606 can also be seen, which provides bias for door locking component 1500. Shaft 1608 connects knob 1536 to sliding bracket 1602. Flange 1610 can be secured to the surface of bracket 1550 opposite to the surface that engages with shaft 1608. Flange 1610 may include guide pin 1642. For ease of description, the housing of door locking component 1500 is not shown in the image. Figure 17 As shown in the image.

[0047] Figure 18 A graphical representation 1700 of test data for the upstream sensor 134 of the pump module 130 during operation of the ambulatory modular infusion pump system 100 is shown. During operation of the ambulatory modular infusion pump system 100, the pump module 130 expels fluid from a tubing set (e.g., the tubing set 140) disposed within the pump module 130, causing the tubing set to compress. The upstream sensor 134 detects a significant difference in readings between when no tubing set is disposed adjacent the upstream sensor 134 and when a fluid-filled tubing set is disposed adjacent the upstream sensor 134. The upstream sensor 134 detects occlusions when the tubing set is separated from the walls of the upstream sensor 134. The channel housing 132 does not constrain the tubing set at the upstream sensor 134, maximizing the sensitivity of the upstream sensor 134. The graphical results depict the raw pressure profile versus time for two channels using the same tubing set 140.

[0048] Figure 18 A graphical representation 1800 of additional test data for the upstream sensor 134 of the tubing set 140 and multiple pump modules 130 during operation of the ambulatory modular infusion pump system 100, from when no tubing set is disposed in the pump module 130, to when the door assembly 131 is closed after insertion of the tubing set 140, to when a pumping operation is performed, and to when two occlusion events occur, is shown. The ADC values for the events are fairly consistent between the channel housing 132 and the corresponding tubing set 140. An air sensor can provide a redundant check. Figure 19 The test data shows that each event can be readily detected by the channel housing 132 and the corresponding tubing set 140. This provides for calibration of each pump module 130 using a simple calibration method.

[0049] Figure 20 A graphical representation 1900 of test data for the downstream sensor 135 of the pump module 130 during operation of the ambulatory modular infusion pump system 100 is shown. During operation of the ambulatory modular infusion pump system 100, the pump module 130 will rapidly establish pressure in the tubing set 140 in the event of an occlusion downstream. The channel housing 132 constrains the tubing set at the downstream sensor 135 to force the pressure change to be applied to the downstream sensor 135, maximizing the sensitivity of the downstream sensor 135 to pressure changes. The graphical results depict the raw pressure profile versus time for two channels using the same tubing set 140.

[0050] Figure 21Graphical representations 2000 of test data from no tubing set up in the pump module 130, to loading the tubing set 140 and applying three different pressures, of the tubing set 140 and the additional test data of the downstream sensor 135 of the plurality of pump modules 130, during operation of the ambulatory modular infusion pump system 100 are shown. The response is fairly linear, with most of the non-linearity likely due to test error, so showing consistent pressure provides accurate calibration of the pump module 130. Thus, percent change can be a consistent way to determine a clog event, especially at low pumping rates.

[0051] Figure 22 Graphical representations 2100 of test data of sensor independence between the upstream sensor 134 and the downstream sensor 135 of the pump module 130, during operation of the ambulatory modular infusion pump system 100 are shown. The test data validates that the upstream and downstream events are independent, and checks the response and pressure change of the ambulatory modular infusion pump system 100 before / during / after each event. The upstream sensor 134 can vary slightly when the upstream pressure is stable. The pressure in the downstream line remains constant even after the pump action stops. Thus, a release can still be detected to allow for an automatic recovery function or to validate that the operator has resolved the issue.

[0052] Figure 23 and ​ Graphical representations 2200 and 2300 of test data of flow rate and accuracy of the pump module 130, during operation of the ambulatory modular infusion pump system 100 are shown. The results show consistent and linear flow rates throughout the operation of the ambulatory modular infusion pump system 100.

[0053] Some embodiments of the present disclosure relate to an ambulatory modular infusion pump system. The ambulatory modular infusion pump system includes a housing having a housing front and a housing back, a controller coupled to the housing front, and one or more pump modules disposed within the housing. Each pump module includes a door assembly including a door having a door lock, a channel housing, a barrel gasket, at least one sensor, a plurality of pump fingers, a frame assembly, and a motor. The ambulatory modular infusion pump system further includes one or more button assemblies disposed in the housing front, each button assembly having a button disposed proximate to a respective pump module and configured to release the door of the respective pump module when the button is moved to a release position.

[0054] In some aspects of the disclosure, the button assembly includes an engagement latch coupled to the button assembly shaft, where the button assembly shaft exerts a downward biasing force on the engagement latch. In some aspects of the disclosure, the engagement latch has a curved surface configured to receive a finger. In some aspects of the disclosure, the button assembly includes an engagement portion configured to be received by a channel disposed on the door latch. In some aspects of the disclosure, the door latch includes a door shaft that exerts a downward biasing force on the engagement portion.

[0055] In some aspects of the disclosure, the door assembly includes an inner surface of the door that includes one or more latch mounting points, and the door latch includes one or more door mounting points corresponding to the one or more latch mounting points, where the door latch is coupled to the inner surface via the one or more door mounting points mating with the one or more latch mounting points. In some aspects of the disclosure, the door includes a latch deformation configured to receive a portion of a latch extending from the pump module. In some aspects of the disclosure, the door latch includes a latch portal disposed in the door latch housing and aligned with the latch deformation, the latch portal configured to receive a portion of the latch extending from the pump module.

[0056] In some aspects of the disclosure, the door latch includes a slidable carriage disposed within the door latch housing adjacent to the latch portal. In some aspects of the disclosure, the slidable carriage includes an eyelet configured to engage with the latch when the door is in the latched position. In some aspects of the disclosure, the door latch includes a guide groove disposed on the door latch housing, the guide groove configured to receive a portion of a guide pin of the door assembly to limit a range of motion of the door latch. In some aspects of the disclosure, the housing includes a battery configured to power the movable modular infusion pump system. In some aspects of the disclosure, the controller includes at least one of a ruggedized keyboard and a sealed keyboard configured to be operated by a chemically resistant glove.

[0057] Some embodiments of the present disclosure relate to a sealed, mobile, modular infusion pump system. The mobile, modular infusion pump system includes a housing including a housing front portion having a plurality of spaces, wherein the housing rear portion is latched to the housing front portion by one or more latching members, and a controller coupled to the housing front portion. The mobile, modular infusion pump system also includes one or more pump modules each removably disposed within one of the plurality of spaces of the housing front portion, each pump module including a door assembly having a door and a door latch, and an insert coupled to each of the plurality of spaces that does not contain a pump module, each insert configured to provide a sealed integrity for that portion of the housing. The mobile, modular infusion pump system further includes one or more button assemblies disposed on the housing front portion, each button assembly including a button disposed proximate to a corresponding pump module and configured to release the door of the corresponding pump module when the button is moved to a release position.

[0058] In some aspects of the present disclosure, each button assembly includes an engagement latch coupled to a button assembly shaft that exerts a downward biasing force on the engagement latch, and an engagement portion configured to be received by a channel disposed on the door latch, wherein the door latch includes a door shaft that exerts a downward biasing force on the engagement portion. In some aspects of the present disclosure, the door includes a latch deformation, and the door latch includes a latch portal aligned with the latch deformation, each configured to receive a portion of a latch extending from the pump module. In some aspects of the present disclosure, the door latch includes a slidable carriage disposed within a door latch housing proximate to the latch portal, the slidable carriage including an eyelet configured to engage with the latch when the door is in the latched position, and a guide groove disposed on the door latch housing configured to receive a portion of a guide pin of the door assembly to limit a range of motion of the door latch. In some aspects of the present disclosure, a battery is configured to power the mobile, modular infusion pump system, and the controller includes a ruggedized keyboard and a sealed keyboard configured to be operated by a chemically resistant glove.

[0059] Some embodiments of the present disclosure relate to a method of single-handedly operating any of the above disclosed mobile, modular infusion pump systems. The method includes lifting one of the button assemblies, thereby releasing the door of the corresponding pump module, removing an existing tubing set if disposed in the pump module, clamping a replacement tubing set, inserting the replacement tubing set into the pump module, and closing the door of the pump module.

[0060] Some embodiments of the present disclosure relate to a method of configuring any of the above disclosed mobile modular infusion pump systems. The method includes removing one or more securement members that secure a rear housing portion to a front housing portion, removing the rear housing portion from the front housing portion, if an existing pump module is disposed in a selected space in the front housing and a replacement pump module is needed, removing the existing pump module from the selected space and disposing the replacement pump module in the selected space, if an existing pump module is disposed in a selected space in the front housing and no pump module is needed in the selected space, removing the existing pump module from the selected space and coupling a sealing insert to the selected space, if a sealing insert is coupled to a selected space and a new pump module is needed in the selected space, removing the insert and disposing a new pump module in the selected space, coupling the rear housing portion to the front housing portion and replacing the one or more securement members to secure the rear housing portion to the front housing portion.

[0061] As used herein, the term "control" or "controllability" encompasses a wide variety of actions. For example, a "controllable" device can include sending one or more messages to adjust an operational state or functional element of the device. The message can include specific instructions to be executed by a processor of the device to effect the change. "Controllability" can include storing a value in a location of a storage device for subsequent retrieval by the device to be controlled, sending the value directly to the device to be controlled via at least one wired or wireless communication medium, sending or storing a reference to the value, etc. For example, a control message can include a value that adjusts a power level from a power supply of the controlled device. As another example, a control message can activate or deactivate a structural element of the controlled device, such as a light, audio playback, motor, lock, pump, display, or other component of the devices described herein. "Controllability" can include indirectly controlling a device by adjusting a configuration value used by the controlled device. For example, a control message can include a threshold value for a device property (e.g., temperature, rate, frequency, etc.). The threshold value can be stored in a memory location and referenced by the controlled device during operation.

[0062] According to some aspects of the present disclosure, a pump assembly includes a fluid flow pump, a tubing path configured to receive a fluid tube, and a tube dimension measurement assembly. The tube dimension measurement assembly includes a processor, an emitter spaced apart from the tubing path and configured to produce an emission into the tubing path, and a collector spaced apart from the tubing path and positioned to receive the emission from the emitter, wherein the tube dimension measurement assembly is further structured to measure an outer diameter (OD) of a tube received in the path, wherein the measurement is based at least in part on the emission.

[0063] It is to be understood that any particular order or hierarchy of blocks within the disclosed process methods is an example of an illustrative approach. Based upon design or implementation requirements, it is understood that the particular order or hierarchy of blocks can be rearranged, or that all illustrated blocks can be performed. In some embodiments, blocks can be performed concurrently, or with varying degrees of concurrency.

[0064] The present disclosure is presented to enable a person skilled in the art to practice the various aspects described herein. The disclosure provides various examples of the subject technology and the subject technology is not limited to these examples. Numerous modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects.

[0065] Unless specifically stated otherwise, a reference to an element in the singular does not preclude the presence of pluralities or more of such elements. Unless specifically stated otherwise, the term "some" refers to one or more. The term "positive" pronoun (e.g., his) includes female and neutral gender (e.g., her and its), and vice versa. The use of headings and subheadings (if any) is for convenience only and does not limit the application.

[0066] The word "exemplary" is used herein to mean "serving as an example or illustration." Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. In one aspect, various alternative configurations and operations can be considered equivalents in at least some respects.

[0067] As used herein, the phrase "at least one of" preceding a series of items, with the term "or" used to separate any of the items, modifies the introduction of each term of the series. The phrase "at least one of" is not meant to require selection of at least one of the items; rather, the phrase allows inclusion of at least one of any of the items, and / or at least one of any combination of the items, and / or at least one of each of the items. By way of example, the phrase "at least one of A, B, or C" can mean: only A, only B, or only C; or any combination of A, B, and C; or any combination of A, B, and C.

[0068] For example, phrases like "aspect" do not imply that such an aspect is essential to the present subject matter, or that such an aspect applies to all configurations of the present subject matter. Disclosure relating to an aspect may apply to all configurations or one or more configurations. An aspect may provide one or more examples. For example, phrases like "an aspect" may refer to one or more aspects, and vice versa. For example, phrases like "an embodiment" do not imply that such an embodiment is essential to the present subject matter, or that such an embodiment applies to all constructions of the present subject matter. Disclosure relating to an embodiment may apply to all embodiments or one or more embodiments. An embodiment may provide one or more examples. For example, phrases like "an embodiment" may refer to one or more embodiments, and vice versa. For example, phrases like "configuration" do not imply that such a configuration is essential to the present subject matter, or that such a configuration applies to all configurations of the present subject matter. Disclosure relating to a configuration may apply to all configurations or one or more configurations. A configuration may provide one or more examples. For example, phrases like "configuration" may refer to one or more configurations, and vice versa.

[0069] As used herein, the terms "determine" or "measure" encompass a wide variety of actions. For example, "measurement" can include performing calculations, operations, processing, deriving, generating, obtaining, searching (e.g., searching in a table, database, or other data structure), and identifying via hardware components without user intervention. Furthermore, "measurement" can include receiving (e.g., receiving information), accessing (e.g., accessing data in memory), and so on via hardware components without user intervention. "Measurement" can also include parsing, selecting, picking, and building via hardware components without user intervention.

[0070] As used herein, the term “provide” or “supply” encompasses a wide variety of actions. For example, “supply” can include storing a value in a location on a storage device for later retrieval, sending a value directly to a recipient via at least one wired or wireless communication medium, sending or storing a reference to a value, and so on. “Supply” can also include encoding, decoding, encrypting, decrypting, acknowledging, verifying, inserting, etc., via hardware components.

[0071] As used herein, the term "message" encompasses a wide variety of formats used to transmit (e.g., send or receive) information. A message can include a collection of machine-readable information, such as an XML document, a fixed-field message, a comma-separated message, etc. In some implementations, a message can include signals for transmitting one or more representations of information. Although stated in the singular, it should be understood that a message can consist of multiple parts, be sent, stored, received, etc.

[0072] In one aspect, unless otherwise indicated, all measurements, values, ratings, positions, magnitudes, sizes, and other specifications that are set forth in this specification, including in the accompanying claims, are approximate, not exact. In one aspect, they are intended to have a reasonable range that is consistent with the functions to which they relate and with what is customary in the art, while at the same time fulfilling the strict limits set forth.

[0073] It should be appreciated that a specific order or hierarchy of steps, operations or processes disclosed herein are meant to be examples only and can be performed in different order, omitted, or in parallel, depending on the implementation. Some of the steps, operations or processes can be performed simultaneously. Some or all of the steps, operations, or processes described herein can be executed automatically, without the intervention of a user. The accompanying method claims, if any, perform the recited acts in the order indicated, but include the possibility of rearranging the order of the steps, operations or processes, or omitting some of the steps, operations or processes, without departing from the essence of the method. The various elements of the various aspects described throughout this disclosure can be combined in various ways without departing from the scope of the disclosure.

[0074] All structural and functional equivalents to the elements of the various aspects described throughout this disclosure that are known or later come to be known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the claims. Moreover, nothing disclosed herein is intended to be dedicated to the public regardless of whether these disclosure is explicitly recited in the claims. No claim element is to be construed under the provisions of 35 U.S.C. 112(f) unless the element is expressly recited in the claim as “means plus function.” Furthermore, to the extent that the use of the term “including” or “having” or the like is intended to be construed as a function of open ended inclusion, it is to be interpreted that the term “comprising” or “having” is to be construed as a function of open ended inclusion as well.

[0075] In any embodiment, data can be forwarded to a "remote" device or location, where "remote" refers to a location or device other than the location or device where the program is executed. For example, a remote location can be another location (e.g., office, laboratory, etc.) in the same city, another location in a different city, another location in a different state, another location in a different country, etc. Thus, when one item is indicated as being "remote" from another item, this means that the two items can be in the same space but independent, or at least in different spaces or different buildings, and can be at least one mile, ten miles, or at least one hundred miles apart. "Communicating" information refers to the transmission of data representing that information as an electrical, electromagnetic, or optical signal processed in baseband signal or passed in carrier, or the Internet Protocol (IP) packets in a wired communication channel. "Forwarding" an item refers to any means of moving that item from one location to the next, whether by physically transferring the item or otherwise (where possible), and includes, at least in the case of data, physically communicating a medium bearing the data or transmitting the data. Examples of communication media include radio or infrared transmission channels as well as wired networks, computer network connections, and the Internet or intranets comprising email transmissions and information recorded on websites.

[0076] Some embodiments include implementation on a single computer, or across a network of computers, or across a network of networks of computers (e.g., across a network cloud, across a local area network, on a handheld computer device, etc.). The computers can be virtual machines hosted by other computers or physical machines. In certain embodiments, one or more steps described herein are implemented on a computer program. Such a computer program performs one or more steps described herein. In some embodiments, implementations of the present method include various data structures, classes, and modifiers described herein, which are encoded on computer-readable media and are transmittable across a communications network.

[0077] Software, network, Internet, cloud, or other storage and computer network implementations of the present invention can be accomplished with standardized programming techniques particularly adapted to cause one or more devices to perform the various allocating, calculating, identifying, scoring, accessing, generating, or discarding steps described.

[0078] The title, background, summary, brief description of drawings, and abstract of the disclosure are hereby incorporated into this disclosure and provided as illustrative examples only, and are not intended to limit the scope of the disclosure. The present application is filed based on the understanding that they will not be used to limit the scope or meaning of the claims. Furthermore, in the DETAILED DESCRIPTION, it can be seen that a description provides illustrative examples and, in an effort to simplify the disclosure, various features are combined in various embodiments. The disclosed methods should not be interpreted as reflecting an intention that the claimed subject matter require a greater scope of features than is expressly recited in each claim. On the contrary, the inventible subject matter is broad in scope and an attached claim is hereby incorporated into the detailed description where each claim independently recites a separate claimed subject matter.

[0079] The claims are not intended to be limited to the aspects described herein, but are to be accorded the full scope consistent with the language claims, and to include all legal equivalents. However, no aspect is intended to be granted immunity from invalidation except to the extent required by law no claim is intended to embrace all solutions to the problem(s) addressed by the disclosure.

Claims

1. A portable modular infusion pump system, comprising: A housing, the housing comprising a front portion and a rear portion, the front portion comprising a plurality of spaces; A controller is attached to the front of the housing; One or more pump modules, each pump module being disposed within the housing, each pump module being removably disposed within one of the plurality of spaces and comprising: A door assembly comprising a door having a door locking element, the door locking element comprising: A sliding bracket is disposed within the door locking housing adjacent to the latch inlet, the sliding bracket including an eyelet configured to engage with the latch when the door is in the locked position; A guide groove is provided on the door fastener housing, the guide groove being configured to receive part of a guide pin of the door assembly to limit the range of motion of the door fastener; Channel housing; Box liner; At least one sensor; Multiple pump fingers; Framework components; and Motor; and One or more button assemblies are disposed at the front of the housing, each button assembly including a button located adjacent to a corresponding pump module and configured to release the door of the corresponding pump module when the button is moved to a release position. The one or more pump modules are calibrated and ready for use without requiring further calibration after installation into the portable modular infusion pump system.

2. The portable modular infusion pump system according to claim 1, wherein, The button assembly includes an engagement latch coupled to a button assembly shaft, wherein the button assembly shaft applies a downward biasing force to the engagement latch.

3. The portable modular infusion pump system according to claim 2, wherein, The engagement latch includes a curved surface configured to receive a finger.

4. The portable modular infusion pump system according to claim 1, wherein, The button assembly includes an engagement portion configured to receive a channel disposed on the door locking member.

5. The portable modular infusion pump system according to claim 4, wherein, The door locking mechanism includes a door hinge that applies a downward biasing force to the engagement portion.

6. The portable modular infusion pump system according to claim 1, wherein, The gate assembly includes: The inner surface of the door, the inner surface including one or more fastening mounting points; and The door locking component includes one or more door mounting points corresponding to the one or more locking component mounting points. The door locking component is connected to the inner surface via one or more door mounting points that mate with the one or more locking component mounting points.

7. The portable modular infusion pump system according to claim 6, wherein, The door includes a latch deformation portion configured to receive a portion of the latch extending from the pump module.

8. The portable modular infusion pump system according to claim 7, wherein, The door locking component includes a latch inlet disposed within the door locking component housing and aligned with the latch deformation portion, the latch inlet being configured to receive a portion of the latch extending from the pump module.

9. The portable modular infusion pump system according to claim 8, wherein, The door locking component also includes a guide groove disposed on the door locking component housing, the guide groove being configured to receive a portion of the guide pin of the door assembly, thereby limiting the range of motion of the door locking component.

10. The portable modular infusion pump system according to claim 1, wherein, The housing includes a battery configured to power the portable modular infusion pump system.

11. The portable modular infusion pump system according to claim 1, wherein, The controller includes at least one of a rugged keyboard and a sealed keyboard configured to be operated by chemically resistant gloves.

12. A hermetically sealed, portable, modular infusion pump system, comprising: A housing, the housing comprising a front portion and a rear portion, the front portion comprising a plurality of spaces, wherein the rear portion is secured to the front portion by one or more locking members; A controller is attached to the front of the housing; One or more pump modules, each removably disposed within one of a plurality of spaces at the front of the housing, each pump module including a door assembly comprising a door and a door fastener, wherein the door fastener comprises: A sliding bracket is disposed within the door locking housing adjacent to the latch inlet, the sliding bracket including an eyelet configured to engage with the latch when the door is in the locked position; A guide groove is provided on the door fastener housing, the guide groove being configured to receive part of a guide pin of the door assembly to limit the range of motion of the door fastener; Inserts, said inserts being coupled to each of a plurality of spaces not containing a pump module, each insert being configured to provide sealing integrity to the space not containing the pump module; and One or more button assemblies are disposed at the front of the housing, each button assembly including a button located adjacent to a corresponding pump module and configured to release the door of the corresponding pump module when the button is moved to a release position. The one or more pump modules are calibrated and ready for use without requiring further calibration after installation into the portable modular infusion pump system.

13. The sealed, movable, modular infusion pump system according to claim 12, wherein, Each button component includes: An engagement latch, the engagement latch being coupled to a button assembly shaft, the button assembly shaft applying a downward biasing force to the engagement latch; and The engaging portion is configured to be received by a channel provided on the door fastener, wherein the door fastener includes a door hinge that applies a downward biasing force on the engaging portion.

14. The sealed, movable, modular infusion pump system according to claim 12, wherein, The door includes a latch deformation portion, and the door locking member includes a latch inlet aligned with the latch deformation portion, both the latch deformation portion and the latch inlet being configured to receive a portion of the latch extending from the pump module.

15. The sealed, portable modular infusion pump system of claim 14, further comprising a battery configured to power the portable modular infusion pump system, and the controller comprising a ruggedized and sealed keyboard configured to be operated by chemically resistant gloves.

16. A method for single-handed operation of the portable modular infusion pump system according to claim 1, the method comprising: Promote one of the button components; Release the door of the corresponding pump module; If an existing tubing kit is installed in the pump module, remove the existing tubing kit; Hold the replacement tube kit; Insert the replacement tubing kit into the pump module; and Close the door of the pump module.

17. A method for configuring a portable modular infusion pump system according to claim 12, the method comprising: Remove one or more fastening members that fasten the rear of the housing to the front of the housing; Remove the rear portion of the housing from the front portion of the housing; If the existing pump module is located in a selected space in the front housing and the pump module needs to be replaced, the existing pump module is removed from the selected space and the replacement pump module is placed in the selected space. If the existing pump module is located in a selected space in the front housing, and the selected space does not require a pump module, then the existing pump module is removed from the selected space, and the sealing insert is connected to the selected space. If the sealing insert is connected to the selected space and a new pump module is required in the selected space, then the insert is removed and the new pump module is installed in the selected space; Connect the rear part of the housing to the front part of the housing; and Replace one or more of the locking members to lock the rear of the housing to the front of the housing.

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