WO2026006728A1 - Portable on-body charging of infusion pump - Google Patents

Abstract

Embodiments of the present disclosure relate to portable charging of a user-wearable pump or other medical device having rechargeable batteries. Recharging can occur while the user is wearing the pump on the user's body to ensure uninterrupted medical treatment.

Description

PORTABLE ON-BODY CHARGING OF INFUSION PUMP

PRIORITY CLAIM

The present application claims the benefit of U.S. Provisional Application No. 63/664,822 filed June 27, 2024, which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to medical pumps for delivering medicament to a patient and, more specifically, to a user-wearable pump.

BACKGROUND

There are many applications in academic, industrial, and medical fields that benefit from devices and methods that are capable of accurately and controllably delivering fluids, such as liquids and gases, that have a beneficial effect when administered in known and controlled quantities. Such devices and methods can be particularly useful in the medical field where treatments for many patients include the administration of a known amount of a substance at predetermined intervals.

One category of such fluid delivery devices includes insulin injecting pumps developed for administering insulin to patients afflicted with Type 1 or Type 2 diabetes. Some insulin injecting pumps are configured as portable or ambulatory infusion devices that can provide continuous subcutaneous insulin injection and/or infusion therapy as an alternative to multiple daily injections of insulin via a syringe or an insulin pen. Such pumps can be worn or carried by the user and may use replaceable cartridges. In some embodiments, these pumps may also deliver medicaments other than, or in addition to, insulin, such as glucagon, pramlintide, and the like. Examples of such pumps and various features associated therewith include those disclosed in U.S. Patent Publication Nos. 2013/0324928 and 2013/0053816 and U.S. Patent Nos. 8,287,495; 8,573,027; 8,986,253; and 9,381,297, each of which is incorporated herein by reference in its entirety.

Many ambulatory infusion pumps are powered by batteries that need to periodically be recharged. This is typically accomplished by inserting a connector of a cable into a port on the infusion pump (such as, e.g,, a USB or similar port) that faci litates the transfer of power and/or data and plugging the other end of the cable into a wall outlet or other power source. Recently, a number of consumer devices have been developed that utilize electromagnetic induction to charge an internal battery of a device without the need for additional physical electrical connections. In such systems, a transmiting induction coil within a charging base creates an alternating electromagnetic field. When a receiving induction coil in the device is aligned with the transmitting induction coil, power is transferred to the device where it is used to charge the battery. Embodiments of portable infusion pumps that utilize inductive charging are disclosed in U.S. Patent Nos. 9,993,595, 10,357,603, 11,305,057 and 11,872,368, each of which is hereby incorporated herein by reference in its entirety. Typically, an infusion pump must be disconnected from a user in order to recharge the battery, which requires an interruption in the therapy provided by the pump.

SUMMARY

Embodiments of the present disclosure relate to portable charging of a userwearable pump or other medical device having rechargeable batteries. Recharging can occur while the user is wearing the pump on the user’s body to ensure uninterrupted medical treatment.

In an embodiment, a portable charging device for an ambulatory infusion pump can include a housing, a battery disposed within the housing and an inductive charging coil disposed within the housing configured to transmit power from the battery to an ambulatory infusion pump. Retention features can be configured to retain the housing on the ambulatory infusion pump while the ambulatory infusion pump is worn on a body of a user and to align the inductive charging coil with ambulatory infusion pump for optimal power transfer.

In an embodiment, a portable charging device for a user-wearable infusion pump can include a housing, a battery disposed within the housing, and an inductive charging coil disposed within the housing. The inductive charging coil can be configured to transmit power from the battery to a user-wearable infusion pump. Retention features can be configured to retain the housing on the user-wearable infusion pump while the user-wearable infusion pump is worn on a body of a user and to align the inductive charging coil with the user-wearable infusion pump.

In embodiments, a user-wearable infusion pump system can include a userwearable infusion pump and a portable charging device including a housing, a battery disposed within the housing, and an inductive charging coil disposed within the housing. The inductive charging coil can be configured to transmit power from the battery to a user-wearable infusion pump. The portable charging device can further include retention features configured to retain the housing on the user-wearable infusion pump while the user-wearable infusion pump is worn on a body of a user and to align the inductive charging coil with the user-wearable infusion pump. The above summary is not intended to describe each illustrated embodiment or every implementation of the subject matter hereof. The figures and the detailed description that follow more particularly exemplify various embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

Subject matter hereof may be more completely understood in consideration of the following detailed description of various embodiments in connection with the accompanying figures, in which:

FIGS. 1A-1B depict an ambulatory infusion pump with an infusion set according to an embodiment of the disclosure.

FIGS. 2A-2B depict an ambulatory infusion pump according to an embodiment of the disclosure.

FIG. 3 depicts an ambulatory infusion pump placed on an inductive charging pad according to an embodiment of the disclosure.

FIGS. 4A-4C depict an ambulatory infusion pump according to an embodiment of the disclosure.

FIGS. 5A-5D depict an on-body charging device according to an embodiment of the disclosure.

FIG. 6 depicts an exploded view of the on-body charging device of Figures 5 A- 5D.

FIGS. 7A-7E depict the charging device of Figures 5A-5D and Figure 6 attached to the pump of Figures 4A-4C.

FIGS. 8A-8C depict an on-body charging device according to an embodiment of the disclosure. While various embodiments are amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that the intention is not to limit the claimed inventions to the particular embodiments described. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the subject matter as defined by the claims.

DETAILED DESCRIPTION OF THE DRAWINGS

Figures 1A-1B and 2A-2B depict an exemplary medical device that can be used with embodiments of the disclosure. In this embodiment, the medical device is configured as a pump 102, 202 such as an infusion pump, that can include a pumping or delivery mechanism and a reservoir for delivering a medicament to a patient. In one embodiment, the medical device can be a portable pump configured to deliver insulin to a patient. Further details regarding such pump devices can be found in U.S. Patent Nos. 8,287,495, 10,279,107 and 10,864,318, each of which is incorporated herein by reference in its entirety. In other embodiments, the medical device can be an infusion pump configured to deliver one or more additional or other medicaments to a patient.

As depicted in Figures 1A-1B, pump system 100 can include a pump 102 and an infusion set 145. In embodiments, pump system 100 can include a drive unit 118 and a cartridge 116 having a short length of tubing 153 and a connector 152 extending therefrom. Infusion set 145 can include tubing 144 extending between a connector 154 and a site connector 146. Connector 154 on infusion set 145 can be configured to couple to pump 102 at connector 152 of pump 102. As shown in Figure IB, site connector 146 can be configured to be attached to an infusion hub 148 at an infusion site on a user through which medicament from the pump is delivered to a patient through a cannula extending from the infusion hub 148 into the user’s skin. Such a pump can either be worn directly on a body of the user with an adhesive patch and tray (described in more detail with regard to Figures 2A-2B below) or can be carried near a user, such as in a user’s pocket, with only the infusion set 145 attached to the user’s body.

Infusion pump system 200 depicted in Figures 2A-2B can include an infusion pump 202 configured as a patch pump that is worn directly on the body of the user with an adhesive patch 206. Pump 202 can be affixed to the body of the user with an adhesive patch 206 carrying a tray 204 thereon that releasably attaches the pump 202 to the tray 204 and patch 206. Pump 202 can be configured to deliver medicament to the user through a cannula 208 extending directly beneath the pump 202 and adhesive patch 206. As noted above, a pump such as pump 102 that delivers medicament through an infusion set 145 can also be worn on the body of the user with a similar tray and patch.

Pumps according to embodiments of the present disclosure can include one or more rechargeable batteries. In some embodiments, a rechargeable battery can be wirelessly charged, for example through inductive charging by an inductive charging pad 300 such as depicted in Figure 3 that may receive power by being connected to a wall outlet. Inductive charging of pump can be carried out according to known standards, such as, for example, the Qi standard. In such a system, both the pump and die portable charging device include an inductive coil. A transmitting coil in the portable charging device generates an oscillating magnetic field using a stored power source that induces an alternating current in a receiving coil in the pump to transfer power to the pump when the portable charging device is positioned on the pump. Due io the manner in which the pump is inductively charged, the receiving coil in the pump that receives the charging signal from the inductive charging pad is located adjacent a bottom surface of the pump that rests on the surface of the charging pad. This is the same bottom surface that rests on the tray 204 and is therefore facing the skin of the user to which the adhesive patch 206 is attached. This configuration makes charging such a pump while attached to the body of the user impractical, so the pump must be removed from the user’s body to be charged. This requirement of removing the pump from the body of the user interrupts essential, continuous medical treatment with the pump leading to lapses in care that inconvenience users and could potentially impact treatment efficacy. This need to routinely detach and reattach the pump to recharge the battery compromises what is supposed to be a seamless integration of the pump into daily activities and imposes additional challenges on the user.

Disclosed herein is a charging solution that allows an infusion pump to remain on the user’s body while it is charged such that the device is simultaneously having its battery charged and delivery therapy, thereby ensuring uninterrupted medical care and enhancing user convenience and treatment consistency.

An initial modification that aids in enabling the on-body charging systems disclosed herein is relocation of the receiving charging coil 410 in an infusion pump 402 from die location discussed above on the bottom surface of pumps 102. 202 to adjacent an upper surface 412 of die pump 402 as shown in Figure 4A. Such a position enhances charging efficiency and compatibility with the on-body charging devices disclosed herein for more effective power transfer. Pump 402 can also be provided with one or more elongate grooves 414, 416 depicted in Figures 4B-4C that Interface with retention features of an on-body charging device, as will be described in more detail below. Referring now to Figures 5A-5D, an on-body charging device 500 according to an embodiment of the disclosure is depicted. Charging device 500 includes a housing 502 having an enclosed cavity 501 that contains internal components of charging device 500, as will be explained in more detail below. Housing 502 includes an upper surface 503 and a downwardly extending rim 505 defining a generally open interior with an inner perimeter 504 configured to match a size and shape of a corresponding ambulatory" infusion pump such as pump 402. Portions of inner perimeter 504 may be curved to conform to corresponding curved surfaces on pump 402, Inner perimeter 504 can include an elongate rail 506 on one side of charging device 500 configured to interface with a corresponding elongate groove 416 on pump 402. Charging device 500 can further include a latch 508 having a locking tongue 510 configured to interface with elongate groove 414 of pump 402. As will be described in more detail below, latch 508 can be spring loaded to remain in the locked position and can be pressed by the user to overcome the bias of the spring to release the locking tongue 510 from the groove 414. Charging device can further include one or more of a power button 512 to activate and deactivate the charging device, one or more indicator lights 514 that can indicate a charging status of a pump, and a charging port 516 that can be used to charge an internal battery of charging device 500. A cut-out 518 can also be provided on an end of charging device 500 to accommodate tubing 153 of a pump such as pump 102 configured to interface with an infusion set 154.

Figure 6 is an exploded view of charging device 500 depicting internal components of the device stored within cavity 501. Charging device 500 can generally include a battery 520, a transmitter charging coil 522 configured to transmit power of the battery 520 to the receiving charging coil 410 of a pump 402, and a printed circuit board 524 include a processor and other electrical components. The spring 526 of latch 508 is also visible in Figure 6.

Figures 7A-7E depict the charging device 500 of Figures 5A-5D and Figure 6 attached to the pump 402 of Figures 4A-4C. Transmitter charging coil 522 of charging device 500 is optimally aligned with receiving charging coil 410 in pump 402 for optimal power transfer when power button 512 is actuated. Elongate rail 506 of charging device 500 is nested in elongate groove 416 of pump 402 and locking tongue 510 of latch 508 is biased into groove 414. Charging device 500 is therefore firmly retained on pump 402 and will remain in place even when the pump 402 is on the user’s body while the user is moving around doing daily activities. The tubing 453 is accommodated by cutout 518 such that the connector 453 can remain attached to an infusion set for delivery of medicament to a user during charging. In embodiments, to attach charging device 500 to pump, the elongate rail 506 can first be inserted into elongate groove 416 and then charging device 500 can be pivoted downwardly with the latch 508 flexed outwardly. Once the charging device 500 is in place around pump 402, the latch 508 can be released and the spring 526 will cause the latch 508 to insert the locking tongue 510 into elongate groove 414. Charging device 500 can be removed by flexing the latch 508 outwardly to remove the locking tongue 510 from the groove 414 and then pivoting charging device 500 upwardly to further remove elongate rail 506 from groove 516.

Figures 8A-8C depict a charging device 600 according to another embodiment of the disclosure. Charging device 600 includes substantially all of the features of charging device 500. which will therefore not be described again in detail. Charging device 600 further includes both a transmitter charging coil 622 and a receiver charging coil 624. As such, in addition to providing all of the functionality of charging device 500, charging device 600 can itself be inductively charged through an upper surface 626 of charging device via receiver charging coil 624 (in addition to charging port 616). This provides even further flexibility and convenience for the user, as a charging device 600 that is low on stored power can still be attached to a pump while the user is wearing the purnp and be provided with additional power through an attached inductive charger device (e.g., a charger device magnetically attached to upper surface 626.)

Although one particular attachment configuration between a charging device and pump utilizing grooves on the pump and a rail and locking tongue on the charging device is described, it should be understood that many other atachment mechanisms and methods may be used. For example, other mechanical atachments such as a slot and slide mechanism in which projections on a charging device slide horizontally along grooves in pump is one additional embodiment. Further, the grooves and projections can be transposed such that grooves arc formed in charging device and interface with rails, locking tongues, etc. formed on pump. In addition, a low energy magnet (that does not cause interface with pump operations) could attach a charging device to a pump. Such a charging device could have a smaller form factor that those employing mechanical attachments around a perimeter of pump.

In embodiments, charging devices as disclosed herein can incorporate various sensors that communicate with the pump during charging. For example, the charging device can include a temperature sensor that can interact with other sensors to ensure the safety of the battery and the temperature-sensitive insulin or other medicament inside of the pump. For example, if the temperature rises over a threshold, charging can automatically be stopped or charging power reduced.

In embodiments, a portable charging device for a user-wearable infusion pump can include a housing, a battery disposed within the housing, and an inductive charging coil disposed within the housing. The inductive charging coil can be configured to transmit power from the battery to a user-wearable infusion pump. Retention features can be configured to retain the housing on the user-wearable infusion pump while the user-wearable infusion pump is worn on a body of a user and to align the inductive charging coil with the user-wearable infusion pump.

In some embodiments, the housing comprises an upper surface and a rim extending downwardly from the upper surface, wherein the rim is configured to surround a perimeter of the user-wearable infusion pump.

In some embodiments, the retention features include an elongate rail configured to interface with an elongate groove on the user-wearable infusion pump.

In some embodiments, the retention features include a latch having a locking tongue configured to interface with an elongate groove on the user-wearable infusion pump.

In some embodiments, the latch is spring loaded to bias the locking tongue into a locked position within the elongate groove.

In some embodiments, the latch can be pressed to overcome the bias to release the locking tongue from the locked position within the elongate groove.

In some embodiments, a power button can be configured to activate and deactivate transmission of power with the inductive charging coil.

In some embodiments, a charging port can be configured to receive a charging cord to enable charging of the internal battery by an external power source connected to the charging cord.

In some embodiments, a cutout can be disposed through a portion of housing configured to enable tubing of an infusion set for the user-wearable infusion pump to pass therethrough.

In embodiments, a user-wearable infusion pump system can include a user- wearable infusion pump and a portable charging device including a housing, a battery disposed within the housing, and an inductive charging coil disposed within the housing. The inductive charging coil can be configured to transmit power from the battery to a user-wearable infusion pump. The portable charging device can further include retention features configured to retain the housing on the user-wearable infusion pump while the user-wearable infusion pump is worn on a body of a user and to align the inductive charging coil with the user-wearable infusion pump.

In some embodiments, the user-wearable infusion pump comprises an inductive charging receiving coil located adjacent an upper surface of the user- wearable infusion pump.

In some embodiments, the housing of the portable charging device comprises an upper surface and a rim extending downwardly from the upper surface, wherein the rim is configured to surround an outer perimeter of the user-wearable infusion pump to align the upper surface of the portable charging device with the upper surface of the user-wearable infusion pump.

In some embodiments, the user-wearable infusion pump includes one or more elongate grooves on an outer perimeter of the user-wearable infusion pump configured to interface with the portable charging device.

In some embodiments, the retention features of the portable charging device include an elongate rail configured to interface with an elongate groove on the userwearable infusion pump.

In some embodiments, the retention features of the portable charging device include a latch having a locking tongue configured to interface with an elongate groove on the user-wearable infusion pump.

In some embodiments, the latch is spring loaded to bias the locking tongue into a locked position within the elongate groove.

In some embodiments, the latch can be pressed to overcome the bias to release the locking tongue from the locked position within the elongate groove.

In some embodiments, the portable charging device further includes a power button configured to activate and deactivate transmission of power with the inductive charging coil.

In some embodiments, the portable charging device further includes a charging port configured to receive a charging cord to enable charging of the internal battery by an external power source connected to the charging cord.

In some embodiments, the user-wearable infusion pump includes infusion tubing and the portable charging device further includes a cutout through a portion of housing configured to enable the infusion tubing to pass therethrough.

Various embodiments of systems, devices, and methods have been described herein. These embodiments are given only by way of example and are not intended to limit the scope of the claimed inventions. It should be appreciated, moreover, that the various features of the embodiments that have been described may be combined in various ways to produce numerous additional embodiments. Moreover, while various materials, dimensions, shapes, configurations and locations, etc. have been described for use with disclosed embodiments, others besides those disclosed may be utilized without exceeding the scope of the claimed inventions.

Persons of ordinary skill in the relevant arts will recognize that the subject matter hereof may comprise fewer features than illustrated in any individual embodiment described above. The embodiments described herein are not meant to be an exhaustive presentation of the ways in which the various features of the subject matter hereof may be combined. Accordingly, the embodiments are not mutually exclusive combinations of features; rather, the various embodiments can comprise a combination of different individual features selected from different individual embodiments, as understood by persons of ordinary skill in the art. Moreover, elements described with respect to one embodiment can be implemented in other embodiments even when not described in such embodiments unless otherwise noted.

Although a dependent claim may refer in the claims to a specific combination with one or more other claims, other embodiments can also include a combination of the dependent claim with the subject matter of each other dependent claim or a combination of one or more features with other dependent or independent claims. Such combinations are proposed herein unless it is stated that a specific combination is not intended.

Any incorporation by reference of documents above is limited such that no subject matter is incorporated that is contrary to the explicit disclosure herein. Any incorporation by reference of documents above is further limited such that no claims included in the documents are incorporated by reference herein. Any incorporation by reference of documents above is yet further limited such that any definitions provided in the documents are not incorporated by reference herein unless expressly included herein.

Also incorporated herein by reference in their entirety are commonly owned U.S. Patent Nos. 6,999,854; 8,133,197; 8,287,495; 8,408,421 8,448,824; 8,573,027; 8,650,937; 8,986,523; 9,173,998; 9,180,242; 9,180,243; 9,238,100; 9,242,043;

9,335,910; 9,381,271; 9,421,329; 9,486,171; 9,486,571; 9,492,608; 9,503,526;

9,555,186; 9,565,718; 9,603,995; 9,669,160; 9,715,327; 9,737,656; 9,750,871;

9,867,937; 9,867,953; 9,940,441; 9,993,595; 10,016,561; 10,201,656; 10,279,105; 10,279,106; 10,279,107; 10,357,603; 10,357,606; 10,492,141; 10/541,987; 10,569,016; 10,736,037; 10,888,655; 10,994,077; 11,116,901; 11,224,693; 11,291,763; 11,305,057;

11,458,246; 11,464,908; 11,654,236; 11,911,595; 12,138,425; and 12,214,159 and commonly owned U.S. Patent Publication Nos. 2009/0287180; 2012/0123230; 2013/0053816; 2014/0276423; 2014/0276569; 2014/0276570; 2018/0071454; 2019/0307952; 2020/0206420; 2020/0329433; 2020/0372995; 2021/0001044;

2021/0113766; 2022/0062553; 2022/0139522; 2022/0223250; 2022/0233772;

2022/0233773; 2022/0238201; 2022/0265927; 2023/0034408; 2022/0344017;

2022/0370708; ; 2022/0037465; 2023/0040677; 2023/0047034; 2023/0113545; 2023/0113755; 2023/0166033; 2023/0166037; 2023/0173170; 2023/0201452; 2023/0241314; 2023/0277765; 2023/0338653; 2023/0381406; 2024/0050650;

2024/0226423; 2024/0226424 and 2024/0277924; 2024/0399051; 2024/408303; 2024/0416032; 2024/0416033; 2025/0099674; 2025/0099675 2025/0099678;

2025/0099679; and 2025/0108162 and commonly owned U.S. Patent Applications Nos. 17/368,968; 17/896,492; 18/398,543; 18/962,169; 19/003,140; 19/003,164; 19/119,554; 19/134,333; 19/205,083; 19/220,426; 19/221,933; and 19/225,150.

For purposes of interpreting the claims, it is expressly intended that the provisions of 35 U.S.C. § 112(f) are not to be invoked unless the specific terms “means for” or “step for” are recited in a claim.

Claims

1. A portable charging device for a user- wearable infusion pump, comprising: a housing; a battery disposed within the housing; an inductive charging coil disposed within the housing, the inductive charging coil configured to transmit power from the battery to a user-wearable infusion pump; and retention features configured to retain the housing on the user-wearable infusion pump while the user-wearable infusion pump is worn on a body of a user and to align the inductive charging coil with the user-wearable infusion pump.

2. The portable charging device of claim 1, wherein the housing comprises an upper surface and a rim extending downwardly from the upper surface, wherein the rim is configured to surround a perimeter of the user-wearable infusion pump.

3. The portable charging device of claim 1, wherein the retention features include an elongate rail configured to interface with an elongate groove on the user-wearable infusion pump.

4. The portable charging device of claim 1, wherein the retention features include a latch having a locking tongue configured to interface with an elongate groove on the user-wearable infusion pump.

5. The portable charging device of claim 4, wherein the latch is spring loaded to bias the locking tongue into a locked position within the elongate groove.

6. The portable charging device of claim 5, wherein the latch can be pressed to overcome the bias to release the locking tongue from the locked position within the elongate groove.

7. The portable charging device of claim 1, further comprising a power button configured to activate and deactivate transmission of power with the inductive charging coil.

8. The portable charging device of claim 1, further comprising a charging port configured to receive a charging cord to enable charging of the internal battery by an external power source connected to the charging cord.

9. The portable charging device of claim 1, further comprising a cutout through a portion of housing configured to enable tubing of an infusion set for the user-wearable infusion pump to pass therethrough.

10. A user-wearable infusion pump system, comprising: a user-wearable infusion pump; and a portable charging device including a housing, a battery disposed within the housing, an inductive charging coil disposed within the housing, the inductive charging coil configured to transmit power from the battery to a user-wearable infusion pump and retention features configured to retain the housing on the user-wearable infusion pump while the user-wearable infusion pump is worn on a body of a user and to align the inductive charging coil with the user-wearable infusion pump.

11. The user- wearable infusion pump system of claim 10, wherein the userwearable infusion pump comprises an inductive charging receiving coil located adjacent an upper surface of the user-wearable infusion pump.

12. The user-wearable infusion pump system of claim 11, wherein the housing of the portable charging device comprises an upper surface and a rim extending downwardly from the upper surface, wherein the rim is configured to surround an outer perimeter of the user-wearable infusion pump to align the upper surface of the portable charging device with the upper surface of the user-wearable infusion pump.

13. The user- wearable infusion pump system of claim 10, wherein the userwearable infusion pump includes one or more elongate grooves on an outer perimeter of the user-wearable infusion pump configured to interface with the portable charging device.

14. The user-wearable infusion pump system of claim 13, wherein the retention features of the portable charging device include an elongate rail configured to interface with an elongate groove on the user-wearable infusion pump.

15. The user-wearable infusion pump system of claim 13, wherein the retention features of the portable charging device include a latch having a locking tongue configured to interface with an elongate groove on the user-wearable infusion pump.

16. The user-wearable infusion pump system of claim 15, wherein the latch is spring loaded to bias the locking tongue into a locked position within the elongate groove.

17. The user-wearable infusion pump system of claim 16, wherein the latch can be pressed to overcome the bias to release the locking tongue from the locked position within the elongate groove.

18. The user-wearable infusion pump system of claim 10, wherein the portable charging device further includes a power button configured to activate and deactivate transmission of power with the inductive charging coil.

19. The user-wearable infusion pump system of claim 10, wherein the portable charging device further includes a charging port configured to receive a charging cord to enable charging of the internal battery by an external power source connected to the charging cord.

20. The user- wearable infusion pump system of claim 10, wherein the userwearable infusion pump includes infusion tubing and the portable charging device further includes a cutout through a portion of housing configured to enable the infusion tubing to pass therethrough.