Battery box assembly for a patient monitor

Abstract

The present disclosure relates to a battery box assembly, and more particularly to a battery box assembly providing conductive power contacts for use, for example, in providing power to a medical device. The battery box assembly of the present disclosure includes a box casing defining a receiving area dimensioned to receive one or more removable batteries, a flexible circuit disposed within the receiving area and having a bent portion bent beyond at least a first sidewall of the box casing, and a resilient spring member disposed between the first sidewall of the box casing and an inner surface of the flexible circuit. In certain embodiments, the battery box assembly of the present disclosure includes one or more air chambers, cavities, reinforcing members, and / or combinations thereof that improve contact life of the power contacts.

Description

[Technical Field]

[0001] The present disclosure relates generally to a battery box assembly having a flexible circuit spring element, and more particularly to a patient monitor including a battery box assembly having features that extend its life cycle. [Background technology]

[0002] Many electronic devices use removable batteries. A battery box or adapter is often provided as an interface between one or more batteries and the electronic device that the battery or batteries power. To make electrical contact with the batteries, known battery boxes include metal spring contacts for connecting with the batteries. The metal spring contacts can provide a long-lasting electrical connection with the batteries over repeated cycles of removing and replacing the batteries. Summary of the Invention [Problem to be solved by the invention]

[0003] However, in medical applications, there are many drawbacks to using metal spring contacts: they are bulky, add unnecessary expense, trap debris, are difficult to sterilize, and have exposed areas that increase the likelihood of electric shock and can cause damage to sensitive electronic components such as patient monitors, ventilators, etc. [Means for solving the problem]

[0004] According to one embodiment of the present disclosure, there is provided a battery box assembly, the battery box assembly comprising: a box casing having one or more side walls defining a receiving area dimensioned to receive one or more removable batteries; a flexible circuit disposed within the receiving area of ​​the box casing, the flexible circuit having a folded portion folded over at least a first side wall of the box casing, the flexible circuit further having one or more conductive pads disposed on the folded portion of the flexible circuit; a resilient spring member disposed between the first sidewall of the box casing and the first surface of the flexible circuit, the resilient spring member having one or more cavities adjacent each of the one or more conductive pads of the flexible circuit; each cavity being defined between the resilient spring member and a first side wall of the box casing.

[0005] In one aspect, the resilient spring member has one or more solid portions between each of the one or more cavities of the resilient spring member.

[0006] In one aspect, the resilient spring member has a sealing bead surrounding one or more of the cavities of the resilient spring member, the sealing bead being configured to provide continuous contact with an outer surface of the first side wall of the box casing.

[0007] In one aspect, the sealing bead, the resilient spring member, and the first sidewall of the box casing form an air chamber adjacent to one or more conductive pads of the flexible circuit.

[0008] In one aspect, the resilient spring member has a recess adjacent to at least one conductive pad of the flexible circuit, the recess being defined between the resilient spring member and the folded portion of the flexible circuit.

[0009] In one aspect, the battery box assembly further includes one or more reinforcing members coupled to the flexible circuit adjacent each of the one or more conductive pads, and the recesses in the resilient spring member are dimensioned to receive the one or more reinforcing members.

[0010] In one aspect, the box casing includes one or more cavities in a first side wall of the box casing, each cavity in the first side wall of the box casing being defined between the first side wall and a resilient spring member, and each cavity in the first side wall of the box casing being adjacent to a cavity in the resilient spring member.

[0011] In one aspect, each of the cavities in the box casing and each of the cavities in the resilient spring member has a concave surface that defines the cavity.

[0012] In one embodiment, the elastic spring member is fixed between the first side wall of the box casing and the bent portion of the flexible circuit by a bumper member.

[0013] In one aspect, the bumper member includes a resilient spring member and one or more latches configured to interface with the box casing.

[0014] In one aspect, the box casing is formed from a rigid material.

[0015] In one aspect, the resilient spring member is formed from at least a compressible polymer.

[0016] According to another embodiment of the present disclosure, there is provided a wearable patient monitor having a battery box assembly providing one or more power contacts configured to power the wearable patient monitor using one or more removable batteries. In one aspect, the battery box assembly includes: a box casing having one or more side walls defining a receiving area dimensioned to receive one or more removable batteries; a flexible circuit disposed within the receiving area of ​​the box casing, the flexible circuit having a folded portion folded over at least a first side wall of the box casing, the flexible circuit further having one or more conductive pads disposed on the folded portion of the flexible circuit; and a resilient spring member disposed between the first side wall of the box casing and a first surface of the flexible circuit, the resilient spring member having one or more cavities adjacent each of the one or more conductive pads of the flexible circuit, each cavity defined between the resilient spring member and the first side wall of the box casing.

[0017] In one aspect, the resilient spring member of the wearable patient monitor has a recess adjacent to at least one conductive pad of the flexible circuit, the recess being defined between the resilient spring member and a folded portion of the flexible circuit.

[0018] In one aspect, the battery box assembly of the wearable patient monitor has one or more reinforcing members coupled to the flexible circuit adjacent each of the one or more conductive pads, and the recess in the resilient spring member is dimensioned to receive the one or more reinforcing members.

[0019] These and other aspects of various embodiments will be apparent from and elucidated with reference to the embodiments described hereinafter. [Brief explanation of the drawings]

[0020] In the drawings, like reference numbers generally refer to the same parts throughout the different views. Also, the drawings are not necessarily to scale, emphasis instead generally being placed upon illustrating the principles of various embodiments. [Figure 1] FIG. 1 is an exploded view of an exemplary battery box assembly according to an embodiment of the present disclosure. [Figure 2A] FIG. 2A is a first perspective view of an illustrated box casing according to an embodiment of the present disclosure. [Figure 2B] FIG. 2B is a second perspective view of an illustrated box casing according to an embodiment of the present disclosure. [Figure 3] FIG. 3 is an exemplary flexible circuit according to an embodiment of the present disclosure. [Figure 4] FIG. 4 is a cross-sectional view of an exemplary battery box assembly according to an embodiment of the present disclosure. [Figure 5A] FIG. 5A is a first perspective view of an exemplary resilient spring member according to an embodiment of the present disclosure. [Figure 5B] FIG. 5B is a second perspective view of an exemplary resilient spring member according to an embodiment of the present disclosure. [Figure 6] FIG. 6 is a partial perspective view of an illustrated box casing according to an embodiment of the present disclosure. [Figure 7A] FIG. 7A is a front plan view of an exemplary wearable patient monitor according to an embodiment of the present disclosure. [Figure 7B] FIG. 7B is a side plan view of an exemplary wearable patient monitor according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0021] In accordance with the present disclosure, a battery box assembly having a flexible circuit spring element is provided. Also provided herein is a wearable patient monitor including such a battery box assembly having features that extend its life cycle.

[0022] 1 , an exploded view of a battery box assembly 100 according to an aspect of the present disclosure is shown. According to the present disclosure, the battery box assembly 100 includes at least a box casing 102, a flexible circuit 104, and a resilient spring member 108. In a further embodiment, the battery box assembly 100 may include a bumper member 110. In yet another embodiment, the battery box assembly 100 may also include a second resilient spring member 112 and / or a shroud 114.

[0023] In an embodiment, the box casing 102 of the battery box assembly 100 includes one or more sidewalls that define a receiving area 116 dimensioned to receive one or more removable batteries. As shown in FIGS. 2A and 2B , the battery box assembly 100 may be a battery lid assembly 100 having a box casing 102 including sidewalls 118A, 118B, 118C, and 118D and a floor 120. The sidewalls 118A, 118B, 118C, and 118D and the floor 120 may define the receiving area 116 such that the receiving area 116 is configured to receive one or more batteries, including, but not limited to, one or more AA batteries, AAA batteries, and / or rechargeable batteries. The battery (not shown) may preferably extend longitudinally between the sidewalls 118A and 118D. In some embodiments, the side walls 118A, 118B, 118C, 118D and floor 120 may include one or more spacers 112, 124 to space the cells apart.

[0024] In embodiments, the box casing 102 of the battery box assembly 100 is formed from a rigid material, such as a medical-grade thermoplastic polymer having high impact and chemical resistance and low moisture absorption. In certain embodiments, the box casing 102 of the battery box assembly 100 can comprise medical-grade polycarbonate, polypropylene, polyethylene, or the like, and / or combinations thereof.

[0025] 1 and 3 , the flexible circuit 104 of the battery box assembly 100 is above the box casing 102 and extends inside the box casing 102. In embodiments, the flexible circuit 104 connects the battery to an associated electronic device. For example, the flexible circuit 104 may include conductive traces (i.e., electrical circuitry) that connect the battery and provide power to the associated electronic device via one or more conductive pads 302. In some embodiments, the flexible circuit 104 of the battery box assembly 100 may include at least one conductive pad 302, or may include multiple conductive pads 302. As shown in FIG. 3 , the flexible circuit 104 of the battery box assembly 100 includes five conductive pads 302.

[0026] In certain embodiments, the flexible circuit 104 includes a flexible substrate having resilient conductive pads 302 defining one or more power contacts. The traces extend through the interior and / or along the backside of the flexible circuit 104. In some embodiments, the flexible circuit 104 is formed from multiple layers, including, but not limited to, one or more insulating layers, one or more conductive layers, etc. In embodiments, one or more conductive layers can be etched to define traces and contacts 302 for coupling the battery with an associated electronic device. The conductive layers are suitably gold, copper, etc. As described herein, the conductive traces interconnect the multiple contacts 302 and the battery to provide power in the form of electricity. Insulating layers are suitably disposed around the conductive layers, and, where appropriate, between the conductive layers, such that only the contacts 302 are exposed. The insulating layers are suitably formed from a polymeric material.

[0027] In further embodiments, the conductive pads 302 may be plated onto or embedded in the flexible circuit 104 to form one or more power contacts. For example, the conductive pads 302 may be plated with a conductive material, such as, for example, gold.

[0028] An adhesive layer on or applied to the backside of the flexible circuit 104 adheres the flexible circuit 104 to the floor 120 of the box casing 102 along the outside of the box casing 102, around the top edges of the side walls 118A, 118B, 118C, 118D, and / or along the inside of the side walls 118A, 118B, 118C, 118D. In embodiments, the adhesive may be selected to provide a fluid-tight seal between the flexible circuit 104 and the box casing 102 and prevent microorganisms from entering between the box casing 102 and the flexible circuit 104. The adhesive may be selected to be resistant to chemical disinfectants. In other embodiments, alternative and / or additional techniques may be used, such as, for example, solvent bonding, heat bonding, etc.

[0029] As described above, the flexible circuit 104 of the battery box assembly 100 can be folded over the outside of the box casing 102 and extend into the receiving area 116 of the box casing 102. For example, as shown in FIG. 3 , the flexible circuit 104 of the battery box assembly 100 can include a folded portion 304 that is folded over at least one sidewall 118C of the box casing 102. In certain embodiments, each of the conductive pads 302 can be appropriately positioned on a common side of the flexible circuit 104 such that the conductive pads 302 are exposed outside the folded portion 304 of the flexible circuit 104.

[0030] In further embodiments, the flexible circuit 104 may further include one or more additional folds, such as, for example, folds 306, 308. The folds 304, 306 are configured to contact the terminals of one or more batteries to provide power to an associated electronic device via the traces and conductive pads 302 of the flexible circuit 104. The flexible circuit 104 may also include one or more alignment notches 310, 312 that align the flexible circuit 104 with alignment protrusions on the box casing 102.

[0031] 4, the battery box assembly 100 also includes a resilient spring member 108 disposed between the sidewall 118C of the box casing 102 and the inner surface 402 of the flexible circuit 104. In embodiments, the resilient spring member 108 is formed from a flexible and / or compressible material, such as silicone, by a process such as, for example, injection molding. In some embodiments, the resilient spring member 108 is secured between the sidewall 118C of the box casing 102 and the inner surface 402 of the flexible circuit 104 via a bumper member 110. For example, the bumper member 110 may include one or more fastening mechanisms 126, 128 (shown in FIG. 1) configured to mate or mate with one or more complementary slots (e.g., slot 606 shown in FIG. 6) provided in the box casing 102 and / or the elastic spring member 108 when the bumper member 110 is pressed along the outer surface 404 of the flexible circuit 104 or a portion thereof (e.g., the folded portion 304).

[0032] 5A, a perspective view of a resilient spring member 108 according to a further aspect of the present disclosure is shown. In an embodiment, the resilient spring member 108 includes one or more surfaces 502 having one or more cavities 504 disposed therein. The resilient spring member 108 may include one or more solid portions 506 between each of the cavities 504 where no cavities are present. In an embodiment, the solid portions 506 may be flush with the surfaces 502 of the resilient spring member 108.

[0033] In certain embodiments, each of the one or more cavities 504 of the resilient spring member 108 includes a concave surface that defines the cavity. In some embodiments, each of the one or more cavities 504 is defined between the resilient spring member 108 and the sidewall 118C of the box casing 102. In further embodiments, each of the one or more cavities 504 of the resilient spring member 108 can be adjacent to a conductive pad 302 of the flexible circuit 104. For example, in certain embodiments, a flexible circuit 104 having multiple conductive pads 302 for providing power to an associated electronic device also includes a resilient spring member 108 having an equal number of cavities 504, with each cavity 504 corresponding to one of the conductive pads 302.

[0034] In an embodiment, the first surface 502 of the resilient spring member 108 further includes sealing beads 508 extending outward from the first surface 502. The sealing beads 508 are configured to surround or otherwise bound one or more of the cavities 504 of the resilient spring member 108. For example, as shown in FIG. 5A , the resilient spring member 108 includes a first set of three cavities 504 surrounded by a first sealing bead 508 and a second set of two cavities 504 surrounded by a second sealing bead 508.

[0035] Each seal bead 508 of the resilient spring member 108 is configured to provide continuous contact with the outer surface (surface 602 shown in FIG. 6 ) of the sidewall 118C of the box casing 102 so that fluids and / or debris are not trapped within air chambers 510 formed within the resilient spring member. That is, when assembled, the seal bead 508, solid portion 506, and cavity 504 of the resilient spring member 108, together with the sidewall 118A of the box casing 102, form one or more air chambers 510. In an embodiment, each air chamber 510 is adjacent to at least one conductive pad 302 of the flexible circuit 104. In a further embodiment, at least one of the air chambers 510 is adjacent to two or more conductive pads 302 of the flexible circuit 104.

[0036] In certain embodiments, the air chamber 510 can further include one or more cavities 604 formed in the outer surface 602 of the sidewall 118C. For example, as shown in FIG. 6 , the sidewall 118C (about which the flexible circuit 104 is folded) includes multiple cavities 604 formed on the outer surface 602 of the sidewall 118C. Each of the cavities 604 can be defined by a concave surface extending into the sidewall 118C or can be separated by portions of the surface 602 that are devoid of any cavities. In embodiments, the cavities 604 in the sidewall 118C are defined between the sidewall 118C and the resilient spring member 108. In further embodiments, each cavity 604 in the sidewall 118C can be adjacent to a cavity 504 in the resilient spring member 108.

[0037] In further embodiments, the battery box assembly 100 may further include one or more additional cavities, air chambers, and / or reinforcing members configured to support flexing of the conductive contact pads 302 when engaging electrical contacts of an associated electronic device. For example, with reference to FIG. 5B , the outer surface 512 of the resilient spring member 108 may include one or more depressions 514 defined between the resilient spring member 108 and the folded portion 304 of the flexible circuit 104 (e.g., the inner surface 402 of the folded portion 304 shown in FIG. 4 ).

[0038] 4, the battery box assembly 100 may include one or more reinforcing members 406 coupled to the inner surface 402 of the flexible circuit 104 such that, when assembled, the reinforcing members 406 are disposed within one or more recesses 514 of the resilient spring member 108. In other words, the one or more recesses 514 of the resilient spring member 108 may be dimensioned to receive the one or more reinforcing members 406 coupled to the inner surface 402 of the flexible circuit 104.

[0039] Also provided herein are battery-powered patient monitors, including, but not limited to, wearable patient monitors. For example, referring to FIGS. 7A and 7B , front and side plan views, respectively, of a wearable patient monitor 700 are shown according to aspects of the present disclosure. In embodiments, the patient monitor 700 can include a battery box assembly 100 configured to receive one or more removable batteries and provide one or more power contacts (e.g., contacts 302) for providing power from the removable batteries to the patient monitor 700. In certain embodiments, the battery box assembly 100 can include one or more cavities 504, 604, recesses 514, reinforcement members 406, and / or air chambers 510, as described herein.

[0040] In a further embodiment, the battery box assembly 100 may be hingedly attached to one of the side walls 118A, 118B, 118C, 118D of the box casing 102 such that the battery box assembly 100 rotates about a fixed axis relative to the rest of the patient monitor 700. For example, as shown in Figures 2A and 2B, the exterior surfaces of the side walls 118A, 118D include protrusions 130 that engage the housing of the patient monitor 700 and allow the battery box assembly 100 to open, thereby allowing any batteries to be inserted, removed, and / or replaced.

[0041] In an exemplary embodiment, the patient monitor 700 may include one or more electronic components that require power, including, but not limited to, one or more display screens 702 (e.g., liquid crystal display (LCD), TFT liquid crystal display (TFT-LCD), organic light emitting diode display (OLED), flexible display, three-dimensional display, touch screen, etc.), one or more capacitive touch buttons 704, one or more tactile buttons 706 (e.g., push buttons, rockers, slides, etc.), a controller or microcontroller (not shown) configured to operate the patient monitor 700 and communicate with other devices, and one or more sensors (not shown) operably connected to the patient monitor 700, among other components.

[0042] As described herein, the patient monitor 700 of the present disclosure is configured to provide one or more conductive pins (not shown) that contactingly engage one or more conductive pads 302 of the flexible circuit 104 when the battery box assembly 100 is engaged. These conductive pins of the patient monitor 700 cause the conductive pads 302 to flex, thereby causing fatigue not only in the resilient spring member 108 but also in the flexible circuit 104 each time the battery box assembly 100 is opened and closed. In accordance with the present disclosure, it has been discovered that by using various combinations of air chambers 510, cavities 504, 605, and / or reinforcing members 406, as described herein, the durability and expected lifespan of the power contacts of the battery box assembly 100 can be dramatically improved.

[0043] In one example, a comparative embodiment of a battery box assembly having no air chamber 510, cavities 504, 605, and / or reinforcing member 406 as described herein demonstrated a contact life of about 25 to about 50 cycles. In comparison, an inventive embodiment of the present disclosure having a combination of air chamber 510, cavities 504, 605, and reinforcing member 406 demonstrated a contact life of over 5,500 cycles without observed failure.

[0044] It should be understood that all combinations of the concepts described above, and additional concepts discussed in more detail below, are considered to be part of the subject matter disclosed herein (provided that such concepts are not mutually inconsistent). In particular, all combinations of claimed subject matter appearing at the end of this disclosure are considered to be part of the subject matter disclosed herein. Terminology used explicitly herein that appears in any disclosure incorporated by reference shall have a meaning that is most consistent with the specific concepts disclosed herein.

[0045] The indefinite articles "a" and "an," as used in the specification and claims, unless clearly indicated to the contrary, should be understood to mean "at least one."

[0046] The term "and / or" as used in the specification and claims should be understood to mean "either or both" of the connected elements, i.e., elements that are conjunctively present in some cases and disjunctively present in other cases. Multiple elements listed with "and / or" should be construed in the same manner, i.e., "one or more" of the connected elements. Elements other than those specifically identified by the "and / or" clause may optionally be present, whether with or without regard to those specifically identified elements.

[0047] As used in the specification and claims, "or" should be understood to have the same meaning as "and / or" as defined above. For example, when separating items in a list, "or" or "and / or" should be interpreted as inclusive, i.e., the inclusion of at least one of the plurality or list elements, but may include more than one, and optionally, additional items not in the list. Only terms with specific indications, such as "only one of" or "exactly one of," or, when used in the claims, "consisting of," refer to the inclusion of exactly one element of the plurality or list elements. In general, the term "or" as used herein, when accompanied by exclusive language, such as "either," "one of," "only one of," or "exactly one of," should be interpreted merely as indicating exclusive alternatives (i.e., one or the other, but not both).

[0048] As used in the specification and claims, the term "at least one," in reference to a list of one or more elements, should be understood to mean at least one element selected from any one or more of the elements of the list, but not necessarily including at least one of every element specifically listed in the list of elements, and not excluding any combination of elements in said list of elements. This definition also allows that elements other than those specifically identified in the list of elements to which the term "at least one" refers can optionally be present, whether or not they are associated with the specifically identified elements.

[0049] Terms such as first, second, and third are used herein to describe various elements or components, but it will be understood that these elements or components should not be limited by these terms. These terms are used only to distinguish one element or component from another. Thus, a first element or component described below can be called a second element or component without departing from the teachings of the inventive concept.

[0050] Unless otherwise specified, when an element or component is said to be "connected," "coupled," or "adjacent" to another element or component, it is understood that the element or component is directly connected or coupled to the other element or component, or that there are intervening elements or components. That is, these and similar terms include the case where one or more intermediate elements or components are used to connect the two elements or components. However, when an element or component is said to be "directly connected" to another element or component, this only includes the case where the two elements or components are connected to each other without any intermediate or intervening elements or components.

[0051] In the claims and the specification, all transitional phrases such as "having," "including," "carrying," "having," "including," "including," "holding," "consisting of," and the like, are to be understood to be open-ended, i.e., meaning inclusive of, but not limited to. Only the transitional phrases "consisting of" and "consisting essentially of" are closed or semi-closed transitional phrases, respectively.

[0052] Other implementations are within the scope of the following claims and other claims to which the applicant may be entitled.

[0053] While several inventive embodiments have been described and illustrated herein, those skilled in the art will readily envision numerous other means and / or configurations for performing the functions described herein and / or obtaining the results and / or one or more advantages described herein, and each such variation and / or modification is deemed to be within the scope of the inventive embodiments described herein. More generally, those skilled in the art will readily appreciate that all parameters, dimensions, materials, and configurations described herein are intended to be exemplary, and that the actual parameters, dimensions, materials, and / or configurations will depend on the particular application for using the teachings of the present invention. Those skilled in the art will recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific inventive embodiments described herein. Accordingly, the embodiments described above are presented by way of example only, and it should be understood that within the scope of the appended claims and their equivalents, inventive embodiments may be practiced otherwise than as specifically described and claimed. Inventive embodiments of the present disclosure are directed to each individual feature, system, product, material, kit, and / or method described herein. In addition, any combination of two or more of the above features, systems, products, materials, kits, and / or methods is included within the inventive scope of the present disclosure, provided that such features, systems, products, materials, kits, and / or methods are not mutually inconsistent.

Claims

1. a box casing having one or more side walls defining a receiving area dimensioned to receive one or more removable batteries; a flexible circuit disposed within the receiving area of ​​the box casing and having a folded portion folded over at least a first side wall of the box casing, the flexible circuit further having one or more conductive pads disposed within the folded portion of the flexible circuit; a resilient spring member disposed between a first side wall of the box casing and a first surface of the flexible circuit, the resilient spring member having one or more cavities adjacent each of the one or more conductive pads of the flexible circuit, each cavity being defined between the resilient spring member and the first side wall of the box casing; A battery box assembly comprising:

2. The battery box assembly according to claim 1 , wherein the resilient spring member has one or more solid portions between each of the one or more cavities of the resilient spring member.

3. 2. The battery box assembly of claim 1, wherein the resilient spring member has sealing beads surrounding one or more of the cavities of the resilient spring member, the sealing beads being configured to provide continuous contact with an outer surface of the first side wall of the box casing.

4. 4. The battery box assembly of claim 3, wherein the sealing bead, the resilient spring member, and the first side wall of the box casing form an air chamber adjacent one or more conductive pads of the flexible circuit.

5. 2. The battery box assembly of claim 1, wherein the resilient spring member has a recess adjacent to at least one conductive pad of the flexible circuit, the recess being defined between the resilient spring member and the bent portion of the flexible circuit.

6. 6. The battery box assembly of claim 5, further comprising one or more reinforcing members coupled to the flexible circuit adjacent each of the one or more conductive pads, wherein the recesses of the resilient spring member are dimensioned to receive the one or more reinforcing members.

7. 2. The battery box assembly of claim 1, wherein the box casing includes one or more cavities in a first side wall of the box casing, each cavity in the first side wall of the box casing being defined between the first side wall and the elastic spring member, and each cavity in the first side wall of the box casing being adjacent to a cavity in the elastic spring member.

8. 8. The battery box assembly according to claim 7, wherein each of the cavities of the box casing and each of the cavities of the resilient spring member has a concave surface defining the cavity.

9. 2. The battery box assembly according to claim 1, wherein the resilient spring member is fixed between the first side wall of the box casing and the bent portion of the flexible circuit by a bumper member.

10. 10. The battery box assembly of claim 9, wherein the bumper member has one or more latches configured to join the bumper member to the resilient spring member and the box casing.

11. 10. The battery box assembly of claim 1, wherein the box casing is formed from a rigid material.

12. The battery box assembly according to claim 1 , wherein the resilient spring member is formed from at least a compressible polymer.

13. 1. A wearable patient monitor having a battery box assembly providing one or more power contacts configured to power the wearable patient monitor using one or more removable batteries, the battery box assembly comprising: a box casing having one or more side walls defining a receiving area dimensioned to receive one or more removable batteries; a flexible circuit disposed within the receiving area of ​​the box casing and having a folded portion folded over at least a first side wall of the box casing, the flexible circuit further having one or more conductive pads disposed on the folded portion of the flexible circuit; a resilient spring member disposed between a first side wall of the box casing and a first surface of the flexible circuit, the resilient spring member having one or more cavities adjacent each of the one or more conductive pads of the flexible circuit, each cavity being defined between the resilient spring member and the first side wall of the box casing; 1. A wearable patient monitor comprising:

14. 14. The wearable patient monitor of claim 13, wherein the resilient spring member has a recess adjacent at least one conductive pad of the flexible circuit, the recess being defined between the resilient spring member and the bent portion of the flexible circuit.

15. 15. The wearable patient monitor of claim 14, wherein the battery box assembly includes one or more reinforcing members coupled to the flexible circuit adjacent each of the one or more conductive pads, and the recess in the resilient spring member is dimensioned to receive the one or more reinforcing members.

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