EP4681296A1

EP4681296A1 - Systems and devices having multifunctional connectors for hybrid applications and pressure monitoring

Info

Publication number: EP4681296A1
Application number: EP24719692.6A
Authority: EP
Inventors: Matthew Nelson BROWN; Jaap Jozua Van Boxtel; Ilja Guelen; Roland De Blieck; Greg Joseph DUGAN; Max Desire Leonard STOTIJN
Original assignee: Becton Dickinson and Co
Current assignee: Becton Dickinson and Co
Priority date: 2023-03-13
Filing date: 2024-03-12
Publication date: 2026-01-21
Also published as: JP2026508640A; CN121039911A; WO2024192046A1

Abstract

The disclosure generally describes hybrid connectors for medical devices. Such connectors can include multiple connection types to facilitate communication of a distal medical tool with a monitoring system or power source in which multiple types of communication is needed. Such communication can be electrical, electronic, fluid, light, and/or any other energy or matter to be utilized by a medical tool. Connectors for hemodynamic monitoring devices can utilize a connector comprising fluid and electrical communication to connect with a blood pressure cuff and other hemodynamic sensors.

Description

SYSTEMS AND DEVICES HAVING MULTIFUNCTIONAL CONNECTORS FOR HYBRID APPLICATIONS AND PRESSURE MONITORING

CROSS REFERENCE TO RELATED APPLICATION

[0001] This application claims the benefit of U.S. Provisional Patent Application Serial No. 63/489,838, filed March 13, 2023, and entitled “Multi- Connector with Two-Step Alignment for Hybrid Applications,” the complete disclosure of which is hereby incorporated by reference herein in its entirety for all purposes.

TECHNICAL FIELD

[0002] The present disclosure is directed to systems and devices with multi-connectors for medical devices and monitoring systems.

BACKGROUND

[0003] Sensors and other peripheral devices may require multiple types of connectors. For example, within the medical field, a hemodynamic monitoring system may utilize pneumatic pressure and electrical communication to monitor vital signs, such as blood pressure, blood oxygen, and other hemodynamic parameters. Fluid and electrical connectors have different requirements to ensure proper connection and thus, when a device requires both types of connections, two or more unique connectors are utilized. Some systems may utilize a single connector possessing both fluid and electrical connection, but such systems typically possess a trade-off between the connection type. For example, a tight tolerance on the air connection may result in a loose connection for the electronics and vice versa. Because of the trade-off, either the fluid or electrical connection can be compromised, resulting in a less-than-optimal sensor.

[0004] Additionally, traditional connectors tend to have a larger profile, which may have a risk of misalignment and can damage connections. Thus, there is a need to develop a connector that prevents misalignment, while also having simple or foolproof connection. Additionally, a connector that allows for eyes-off connection can be beneficial, where making the connection could be obscured by a blanket or other covering.

SUMMARY

[0005] Multifunctional connectors and methods of are described. Blood pressure cuffs and other cables are described.

[0006] In some implementations, a multifunctional connect comprises a plug comprising two or more type-plugs for connecting at least two different types of energy or matter.

[0007] In some implementations, a multifunctional connect comprises a receptacle comprising a type -receptacle for each type-plug.

[0008] In some implementations, the receptacle is configured to receive the plug. [0009] In some implementations, when the plug is inserted into the receptacle, the plug and the receptacle are each configured such that each type-plug is concurrently and accurately connected with its cognate type-receptacle.

[0010] In some implementations, the different types of energy or matter are selected from: electrical, fluid, electronic, or light.

[0011] In some implementations, the two or more type-plugs comprises an electrical plug.

[0012] In some implementations, the electrical plug comprises a flexible material with electrical contacts disposed thereupon.

[0013] In some implementations, the flexible material is affixed to a hard-molded material and configured to be received by an electrical receptacle to yield an electrical connection.

[0014] In some implementations, the electrical receptacle comprises a cavity matching the shape of the hard-molded material.

[0015] In some implementations, electrical contacts are disposed within the cavity configured to align with the electrical contacts disposed upon the flexible material when the electrical plug is inserted within the electrical receptacle.

[0016] In some implementations, the plug further comprises a wall configured to surround at least a portion of the electrical plug.

[0017] In some implementations, the wall extends from a face of the plug a distance that is greater than a distance that the electrical plug extends from said face of the plug.

[0018] In some implementations, the receptacle comprises a cavity configured to receive the wall when the plug is inserted within the receptacle.

[0019] In some implementations, the electrical plug is in direct connection with electrical components of a medical tool via an electrical cord such that there is no additional electrical plug-and- receptacle connection intervening between the electrical plug and the electrical components of the medical tool.

[0020] In some implementations, the electrical cord traverses within and along an outer sheath of a cable.

[0021] In some implementations, the electrical components of the medical tool are disposed upon a surface.

[0022] In some implementations, each of the surfaces for the electrical components and the flexible material have a width greater than the greatest diameter of the outer sheath.

[0023] In some implementations, the two or more type-plugs comprises a fluid plug.

[0024] In some implementations, the fluid plug comprises a port configured to be received by a fluid receptacle to yield a fluid connection.

[0025] In some implementations, the fluid connection further comprises aa lip seal, a radial seal, or a washer. [0026] In some implementations, the two or more type-plugs comprises an electronic plug.

[0027] In some implementations, the electronic plug is configured to be received by an electronic receptacle to yield an electronic connection.

[0028] In some implementations, the two or more type-plugs comprises a fiber optic plug.

[0029] In some implementations, the fiber optic plug is configured to be received by a fiber optic receptacle to yield a light energy connection.

[0030] In some implementations, the receptacle is in connection with a controller and shares housing with the controller.

[0031] In some implementations, the housing has a radial split line.

[0032] In some implementations, the housing has no split line.

[0033] In some implementations, an electrical cord system comprises an electrical cord.

[0034] In some implementations, an electrical cord system comprises a flexible material comprising a plurality of electrical contacts in connection with the electrical cord.

[0035] In some implementations, an electrical cord system comprises electrical components of a medical tool in connection with the electrical cord.

[0036] In some implementations, an electrical cord system comprises an outer sheath surrounding the electrical cord.

[0037] In some implementations, the flexible material is in direct connection with the electrical components of the medical tool via the electrical cord such that there is no electrical plug-and- receptacle connection intervening between the electrical plug and the electrical components of the medical tool.

[0038] In some implementations, the electrical components of the medical tool are disposed upon a surface.

[0039] In some implementations, each of the surfaces for the electrical components and the flexible material have a width greater than the greatest diameter of the outer sheath.

[0040] In some implementations, the flexible material is fastened to a hard material.

[0041] In some implementations, the flexible material, electrical contacts, and hard material form an electrical plug or an electrical receptacle.

[0042] In some implementations, a multifunctional connector for medical tools utilizing fluid and electrical signals comprises a plug comprising an electrical plug and a fluid plug.

[0043] In some implementations, a receptacle comprising an electrical receptacle and fluid receptacle.

[0044] In some implementations, when the plug is inserted into the receptacle, the plug and the receptacle are each configured such that electrical plug and fluid plug are concurrently and accurately connected with its cognate receptacle. [0045] In some implementations, the electrical plug comprises a flexible material with electrical contacts disposed thereupon.

[0046] In some implementations, the flexible material is affixed to a hard-molded material and configured to be received by the electrical receptacle to yield an electrical connection.

[0047] In some implementations, the electrical receptacle comprises a cavity matching the shape of the hard-molded material.

[0048] In some implementations, electrical contacts are disposed within the cavity configured to align with the electrical contacts disposed upon the flexible material when the electrical plug is inserted within the electrical receptacle.

[0049] In some implementations, the plug further comprises a wall configured to surround at least a portion of the electrical plug.

[0050] In some implementations, the wall extends from a face of the plug a distance that is greater than a distance that the electrical plug extends from said face of the plug.

[0051] In some implementations, the receptacle comprises a cavity configured to receive the wall when the plug is inserted within the receptacle.

[0052] In some implementations, the electrical plug is in direct connection with electrical components of a medical tool via an electrical cord such that there is no additional electrical plug-and- receptacle connection intervening between the electrical plug and the electrical components of the medical tool.

[0053] In some implementations, the fluid plug is connection with the medical tool via a fluid line.

[0054] In some implementations, the fluid line traverses within and along an outer sheath of a cable.

[0055] In some implementations, the medical tool is a blood pressure cuff.

[0056] In some implementations, the electrical components comprise a light emitter and a light sensor.

[0057] In some implementations, the receptacle is configured to connect to a hemodynamic monitoring system.

[0058] In some implementations, the receptacle is in connection with a controller and shares housing with the controller.

[0059] In some implementations, a method for assembling an electrical cable comprises providing an electrical cord system, the electrical cord system comprises an electrical cord, a flexible material comprising a microchip attached along an axial midline and a plurality of electrical contacts in connection with the electrical cord, electrical components of a medical tool in connection with the electrical cord, and an outer sheath surrounding the electrical cord. [0060] In some implementations, a method for assembling an electrical cable comprises rolling the flexible material into a compact rolled shape.

[0061] In some implementations, a method for assembling an electrical cable comprises inserting the flexible material into a cavity of an elongated tool having a tubular head with the cavity and a rod. [0062] In some implementations, a method for assembling an electrical cable comprises maneuvering the outer sheath over the elongated tool such that the flexible material traverses the outer sheath until reaches the other side.

[0063] In some implementations, a method for assembling an electrical cable further comprises affixing the flexible material to hard material to yield an electrical plug or an electrical receptacle. [0064] In some implementations, the flexible material is in direct connection with the electrical components of the medical tool via the electrical cord such that there is no electrical plug-and- receptacle connection intervening between the electrical plug and the electrical components of the medical tool.

[0065] In some implementations, the electrical components of the medical tool are disposed upon a surface, wherein each the surface for the electrical components and the flexible material have a width greater than the greatest diameter of the outer sheath.

[0066] In some implementations, the electrical components comprise a light emitter and a light sensor.

[0067] In some implementations, the medical tool is a blood pressure cuff.

[0068] In some implementations, a blood pressure cuff comprises an inflatable bladder.

[0069] In some implementations, a blood pressure cuff comprises a noninflatable portion adjacent to the inflatable bladder.

[0070] In some implementations, the inflatable bladder and the noninflatable portion are configured to encircle an extremity of a patient.

[0071] In some implementations, a blood pressure cuff comprises a light emitter adjacent to the inflatable bladder.

[0072] In some implementations, a blood pressure cuff comprises a light emitter adjacent to the inflatable bladder.

[0073] In some implementations, a blood pressure cuff comprises a cable for transmitting electrical signals and fluid with a hemodynamic monitor.

[0074] In some implementations, the noninflatable portion is configured to encircle at least half an extremity of a patient.

[0075] In some implementations, the noninflatable portion is configured to not completely encircle the extremity.

[0076] In some implementations, the cable is connected to the cuff at an angle between 30- degrees and 65-degrees. [0077] In some implementations, a surface behind the light emitter and the light sensor is dark.

[0078] In some implementations, the light emitter is configured to emit two or more discrete bands of wavelengths within the visible and infrared range such that, along with the light sensor and light sensor are configured to perform photoplethysmography and blood oxygen saturation measurements from a single light emitter and a single light sensor.

[0079] In some implementations, a blood pressure cuff further comprises an extended tab configured to align the digit such that the light emitter and the light sensor are appropriately located when fitted.

[0080] In some implementations, the light emitter and the light sensor are directly connected with an electrical plug via an electrical cord that traverses through and along the cable.

[0081] In some implementations, there is no additional electrical plug-and-receptacle connection intervening between the electrical plug and the light emitter and light sensor.

[0082] In some implementations, the light emitter and the light sensor are disposed upon a surface.

[0083] In some implementations, each the surface for the light emitter and the light sensor and the electrical plug have a width greater than the greatest diameter of the outer sheath.

[0084] In some aspects, the techniques described herein relate to a hybrid connector, including: a body including a first connector and a second connector, where the first connector is configured to transmit a fluid, and where the second connector is configured to transmit an electrical signal.

[0085] In some aspects, the techniques described herein relate to a hybrid connector, where the fluid is a gas.

[0086] In some aspects, the techniques described herein relate to a hybrid connector, where the fluid is selected from air, oxygen, argon, nitrogen, and helium.

[0087] In some aspects, the techniques described herein relate to a hybrid connector, where the fluid is a liquid.

[0088] In some aspects, the techniques described herein relate to a hybrid connector, where the second connector includes a plurality of electrical contacts.

[0089] In some aspects, the techniques described herein relate to a hybrid connector, where the second connector is configured to receive an electrical signal from a sensor or device.

[0090] In some aspects, the techniques described herein relate to a hybrid connector, where the sensor is selected from a pulse oximeter, a moisture sensor, a pH sensor, and a temperature sensor.

[0091] In some aspects, the techniques described herein relate to a hybrid connector, where the electrical signal controls a device.

[0092] In some aspects, the techniques described herein relate to a hybrid connector claim 1-8, where first connector transmits the fluid to a cuff. [0093] In some aspects, the techniques described herein relate to a hybrid connector, where the cuff is selected from a finger cuff, a wrist cuff, and an arm cuff.

[0094] In some aspects, the techniques described herein relate to a hybrid connector, where the first connector and second connector are arranged in a side-by-side configuration, a vertical configuration, or a radial orientation.

[0095] In some aspects, the techniques described herein relate to a hybrid connector, further including a third connector configured to transmit an electrical signal, where the first, second, and third connectors are arranged in a side-by-side configuration.

[0096] In some aspects, the techniques described herein relate to a hybrid connector, where an angle formed by the second connector, the first connector, and the third connector is approximately 90°.

[0097] In some aspects, the techniques described herein relate to a hybrid connector, further including a sealing mechanism located on the first connector to prevent leakage of the fluid.

[0098] In some aspects, the techniques described herein relate to a hybrid connector, further including a retention mechanism.

[0099] In some aspects, the techniques described herein relate to a hybrid connector, where the retention mechanism is selected from a spring, a ring, a pin, a ball, a groove, a clip, and a clasp.

[0100] In some aspects, the techniques described herein relate to a hybrid connector, where the first connector protrudes from the body.

[0101] In some aspects, the techniques described herein relate to a hybrid connector, where the first connector has a cross-sectional shape having a constant width.

[0102] In some aspects, the techniques described herein relate to a hybrid connector, where the first connector has a cross-sectional shape selected from circular and orbiform.

[0103] In some aspects, the techniques described herein relate to a medical device, including: a sensor, and a controller for relaying signals between the sensor, where the sensor is connected to the controller via a hybrid connector.

[0104] In some aspects, the techniques described herein relate to a medical device, where the hybrid connector includes: a body holding a first connector and a second connector, where the first connector is configured to transmit a fluid, and where the second connector is configured to transmit an electrical signal.

[0105] In some aspects, the techniques described herein relate to a medical device, where the fluid is a gas.

[0106] In some aspects, the techniques described herein relate to a medical device, where the fluid is selected from air, oxygen, argon, nitrogen, and helium.

[0107] In some aspects, the techniques described herein relate to a medical device, where the fluid is a liquid. [0108] In some aspects, the techniques described herein relate to a medical device, where the second connector includes a plurality of electrical contacts.

[0109] In some aspects, the techniques described herein relate to a medical device, where the second connector is configured to receive an electrical signal from a sensor or device.

[0110] In some aspects, the techniques described herein relate to the medical device, where the sensor is selected from a pulse oximeter, a moisture sensor, a pH sensor, and a temperature sensor.

[0111] In some aspects, the techniques described herein relate to a medical device, where the electrical signal controls a device.

[0112] In some aspects, the techniques described herein relate to a medical device claim 21-28, where first connector transmits the fluid to a cuff.

[0113] In some aspects, the techniques described herein relate to a medical device, where the cuff is selected from a finger cuff, a wrist cuff, and an arm cuff.

[0114] In some aspects, the techniques described herein relate to a medical device, where the first connector and second connector are arranged in a side-by-side configuration, a vertical configuration, or a radial orientation.

[0115] In some aspects, the techniques described herein relate to a medical device, further including a third connector configured to transmit an electrical signal, where the first, second, and third connectors are arranged in a side-by-side configuration.

[0116] In some aspects, the techniques described herein relate to a medical device, where an angle formed by the second connector, the first connector, and the third connector is approximately 90°.

[0117] In some aspects, the techniques described herein relate to a medical device, further including a sealing mechanism located on the first connector to prevent leakage of the fluid.

[0118] In some aspects, the techniques described herein relate to a medical device, further including a retention mechanism.

[0119] In some aspects, the techniques described herein relate to a medical device, where the retention mechanism is selected from a spring, a ring, a pin, a ball, a groove, a clip, and a clasp.

[0120] In some aspects, the techniques described herein relate to a medical device, where the first connector protrudes from the body.

[0121] In some aspects, the techniques described herein relate to a medical device, where the first connector has a cross-sectional shape having a constant width.

[0122] In some aspects, the techniques described herein relate to a medical device, where the first connector has a cross-sectional shape selected from circular and orbiform.

[0123] In some aspects, the techniques described herein relate to a method of connecting a hybrid connector, including: inserting a guiding mechanism attached to a hybrid connector into a receptacle, where the hybrid connector includes a body holding a first connector and a second connector, where the first connector is configured to transmit a fluid, and where the second connector is configured to transmit an electrical signal, rotating the hybrid connector around the guiding mechanism until the first connector and the second connector are aligned with the receptacle, and completely inserting the hybrid connector into the receptacle.

[0124] In some aspects, the techniques described herein relate to a method, where the first connector protrudes from the body and forms the guiding mechanism.

[0125] In some aspects, the techniques described herein relate to a method, where the first connector has a cross-sectional shape having a constant width.

[0126] In some aspects, the techniques described herein relate to a method, where the first connector has a cross-sectional shape selected from circular and orbiform.

[0127] In some aspects, the techniques described herein relate to a method, where the second connector protrudes from the body and forms the guiding mechanism.

[0128] In some aspects, the techniques described herein relate to a method, where the first connector has a cross-sectional shape having a constant width.

[0129] In some aspects, the techniques described herein relate to a method, where the first connector has a cross-sectional shape selected from circular and orbiform.

[0130] In some aspects, the techniques described herein relate to a method, where the hybrid connector further includes a retention mechanism.

[0131] In some aspects, the techniques described herein relate to a method, where the retention mechanism is selected from a spring, a ring, a pin, a ball, a groove, a clip, and a clasp.

[0132] In some aspects, the techniques described herein relate to a method, where completely inserting the hybrid connector into the receptacle includes inserting the hybrid connector until the retention connector provides tactile feedback.

[0133] Additional embodiments and features are set forth in part in the description that follows, and in part will become apparent to those skilled in the art upon examination of the specification or may be learned by the practice of the disclosure. A further understanding of the nature and advantages of the present disclosure may be realized by reference to the remaining portions of the specification and the drawings, which forms a part of this disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

[0134] These and other features and advantages of the present invention will be better understood by reference to the following detailed description when considered in conjunction with the accompanying drawings where:

[0135] Figs. 1A to ID provide examples of multifunctional connectors.

[0136] Figs. 2A and 2B provide an example of a connector system for connecting a blood pressure cuff to a hemodynamic monitor.

[0137] Figs. 3A to 31 provide examples of multifunctional connectors. [0138] Figs. 4A and 4B provide an example of an electrical plug with a flexible material.

[0139] Figs. 5A to 5G provide examples of various plug and receptacle placements.

[0140] Figs. 6A and 6B provide an example of using pins to induce a lock-and-key fit.

[0141] Fig. 7 provides an example of using a port as a pivot point to rotate a plug with its receptacle.

[0142] Figs. 8 A and 8B provide an example of a using grooves and pins to secure plug and receptacle.

[0143] Figs. 9 A to 9D provide various examples of securing plug and receptacle.

[0144] Figs. 10A and 10B provide an example of a blood pressure cuff.

[0145] Fig. 11 provides an example of a cable for connecting a blood pressure cuff.

[0146] Figs. 12A to 12G provide an example of a method to assemble an electrical wire.

[0147] Figs. 13 A to 13D provide examples of housings for receptacle and controller.

[0148] Fig. 14 provides an example of a computer system for implementing various computational applications and methods.

DETAILED DISCLOSURE OF THE INVENTION

[0149] Turning now to the diagrams and figures, systems and devices of the disclosure are generally directed to multifunctional connectors for use in medical devices (Fig. 1 A). A multifunctional connector 101 can connect a medical monitor, power source, or other source type 103 to a medical tool 105. Many medical tools may require the use of energy or physic matter to perform tasks, such as (for examples) electrical signals, electrical power, electron flow, fluid, or light, which often are provided by a non-local source (i.c., when the medical tools arc remove from the source). Further, many medical tools acquire a signal, diagnostic information, functional information, or other information that is distal from a medical monitor and thus need to transmit that signal or information that monitor. Often, sources energy or matter and are housed together with monitors in a single device, such as a hemodynamic monitor which can provide the energy and pressurized fluid needed to perform blood pressure monitoring via a distal blood pressure cuff and sensors and further receive diagnostic information from the cuff and sensors to show upon a display of the monitor.

[0150] When a distal tool requires two or more types of energy or matter, generally, two or more unique connectors are utilized, or a single-multifunctional connector is utilized. As noted previously, many multifunctional connectors have a trade-off in tolerances between the multiple types of connections, resulting in less desirable quality. This is especially true when a multifunctional connector needs to utilize two or more functionally disparate connector types, such as trying to connect electrical and fluid sources. Such trade-offs can exist due to the difficulty of manufacturing and/or production of the multifunctional connector having two or more types of connectors within a single compact housing. As described herein, several systems and devices provide multifunctional connection within a single compact housing for connecting multiple source types with a distal medical tool. In particular implementations, a multifunctional connector provides an electrical and fluid connection. A fluid can be gaseous or liquid fluid, which may be pressurized, such as pneumatic or hydraulic pressure. The multifunctional connector systems and devices can comprise solutions to ensure electrical contacts are good and maintained and fluid connections are tight, thus ensuring continued electrical connection and avoiding fluid leaks. In some implementations, a multifunctional connector is utilized to connect a distal tool with a health monitor or supply system. Examples of medical systems that can utilize multifunctional connectors include (but are not limited to) nutritional supplementation systems (e.g., feeding tubes), fluid distribution systems (e.g., saline, medicinal suspensions for intravenous and/or subcutaneous delivery, dialysis, etc.), electronic stimulatory or recording systems (e.g., EKG, neural stimulation, etc.), respiration or ventilation systems, transcatheter systems, surgical systems (e.g., robotic surgery), or hemodynamic monitoring systems.

[0151] In one non-limiting example, a multifunctional connector provides electrical and fluid connection between a blood pressure cuff and a hemodynamic monitor in which the monitor further houses (or is in connection with) a pressure pump for providing pressurized fluid and electrical source for providing power. A multifunctional connector comprises a fluid connection to connect pressurized fluid to the cuff and an electrical connection to provide a means for providing electrical power to and relaying signals to and from the cuff. In some implementations, a multifunctional connector provides a connection for performing continuous blood pressure monitoring via the volume clamp method. Accordingly, pressurized fluid is provided via the fluid connector to the cuff that is secured to a finger or other extremity in which the provided pressurized fluid keeps the artery within the finger or other extremity in an unloaded state (i.e., artery diameter is kept constant by adjusting pressure within cuff to counter the arterial systolc/diastolc pressure cycles). A photoplcthysmograph (PPG) can receive electrical input to emit light (e.g., from one or more light emitting diodes) into the finger or other extremity) and a sensor can receive light signals that are reflected/refracted after passing through the artery such that the arterial volume can be measured, which can then be transmitted via the electrical connector to a hemodynamic monitor.

[0152] In addition to performing continuous blood pressure monitoring, an electrical connector can used to transmit other signals. For example, blood oxygen levels can be monitored using one or more light emitters and a light sensor within a peripheral device placed upon a finger or other extremity. In some implementations, a blood pressure cuff and the peripheral device for measuring blood oxygen are integrated together. In some of these implementations, the light emitters for performing blood oxygen measurement are the same or adjacent to the light emitters for performing the volume clamp blood pressure monitoring. In some of these implementations, the light sensor for performing blood oxygen measurement is the same or adjacent to the light sensor for performing the volume clamp blood pressure monitoring.

[0153] In addition to fluid and electrical connectors, other types of connectors can be utilized. For example, a light connector for connecting fiber optic cables can be utilized when using a non-local light source (e.g., when light power required is greater than what can be provided by the tool locally). In another example, an electronic connector for connecting ECG cables and lead wires can be utilized.

[0154] Provided in Figs. IB to ID are examples of systems having a multifunctional connector 121 for connecting a blood pressure cuff 123 to a controller 125 that is further in connection with a hemodynamic monitor (not shown) In the various examples of systems shown, multifunctional connector 121 can be located at controller 125 (as shown in Fig. IB), in between controller 125 and blood pressure cuff 123 (as shown in Fig. 1C), or at blood pressure cuff 123 (as shown in Fig. ID). In each scenario, multifunctional connector 121 comprises a fluid connection 127 and an electrical connection 129.

[0155] Provided in Figs. 2A and 2B is an example of a multifunctional connector 201 comprising a plug 201a and a receptacle 201b for connecting a blood pressure cuff 203 to hemodynamic monitor (not shown). In this example, connector 201 is shown unconnected, in which a blood pressure cuff 203 portion of connector comprising plug 201a is shown in Fig. 2A and a portion of the connector comprising receptacle 201b for connecting with the hemodynamic monitor is shown in Fig. 2B. Plug 201a comprises an electrical plug 205a and fluid plug 207b. Likewise receptacle 201b comprises an electrical receptacle 205b and fluid receptacle 207a. Electrical receptacle 205b is configured to receive electrical plug 205a and fluid receptacle 207b is configured to receive fluid plug 207a. Receptacle 201b is within the same housing as a controller 209 and is extended via cable 211 to a hemodynamic monitor plug, which is configured to connect to a hemodynamic monitor. Plug 201a is extended via cable 215 to blood pressure cuff 203. Within cable 211 and within cable 215 is an electrical cord and a fluid line for transmitting electrical power/signal and pressurized gas between the hemodynamic monitor and blood pressure cuff 203.

[0156] Provided in Figs. 3A to 31 are examples of connectors, which can be utilized within various medical devices that require an electrical and fluid connection. Figs. 3A and 3C comprise a connector 301 comprising a plug 301a and receptacle 301b. Plug 301a comprises an electrical plug 303a and fluid plug 305a, in which the fluid plug is aligned adjacent to a central portion of the width of the electrical plug. Receptacle 301b comprises an electrical receptacle 303b and fluid receptacle 305b, each of which are recessed within the receptacle and aligned in a way that matches electrical plug 303a and fluid plug 305a. As can be appreciated, the shape and alignment of electrical plug 303a and fluid plug 305a and the shape and alignment of electrical receptacle 303b and fluid receptacle 305b are each asymmetrical and configured such that plug 301a and receptacle 301b can only engage in one manner. Further, engagement of electrical plug 303a with electrical receptacle 303b can occur concurrently with engagement of fluid plug 305a with fluid receptacle 305b, and vice versa.

[0157] Electrical plug 303a is generally rectangular comprises a plurality of electrical contacts 307a that are recessed within the plug such that they are not exposed. Electrical receptacle 303b comprises is generally rectangular shaped, comprises a plurality of electrical contacts 307b, and is configured to snugly fit within the recessed portion of electrical plug 303a such the electrical contracts 307a and electrical contacts 307b touch. Notably, the connection of the electrical plug 303a and electrical receptacle 303b should be a distance away from outer exposure to prevent electrostatic discharge (ESD). Based on the typical amount electrical power and signal needed in a most medical devices, the connection should be airtight or at least between 10 mm and 25 mm away from outer exposure and thus the recessed portions of receptacle 301b and of electrical plug 303a can be configured such that the path to outer exposure is greater than the ESD distance provided by the electrical power and signals traversing therethrough. Furthermore, having some distance between the electrical connector and outer exposure prevents fluids, dust, or other pollution from reaching the contacts.

[0158] Fluid plug 305a is generally tubular in shape with a central canal 309 that allows for passage of fluid therethrough. Fluid receptacle 305b comprises a means to align the fluid line of the receptacle with central canal 309 of fluid plug 305a to ensure fluid connection.

[0159] Figs. 3B and 3D comprise a connector 331 comprising a plug 331 a and receptacle 331 b. Plug 331a comprises an electrical plug 333a and fluid plug 335a, in which the fluid plug is aligned adjacent to a lateral portion of the width of the electrical plug. Receptacle 331b comprises an electrical receptacle 333b and fluid receptacle 335b, each of which are recessed within the receptacle and aligned in a way that matches electrical plug 333a and fluid plug 335a. As can be appreciated, the shape and alignment of electrical plug 303a and fluid plug 305a and the shape and alignment of electrical receptacle 333b and fluid receptacle 335b are each asymmetrical and configured such that plug 331a and receptacle 331b can only engage in one manner. Further, engagement of electrical plug 333a with electrical receptacle 333b can occur concurrently with engagement of fluid plug 335a with fluid receptacle 335b, and vice versa.

[0160] Electrical plug 333a is generally rectangular comprises a plurality of electrical contacts 307a that are recessed within the plug such that they are not exposed. Electrical receptacle 333b is generally rectangular shaped, comprises a plurality of electrical contacts 337b, and is configured to snugly fit within the recessed portion of electrical plug 333a such the electrical contracts 337a and electrical contacts 337b touch. Notably, the connection of the electrical plug 333a and electrical receptacle 333b should be a distance away from outer exposure to prevent electrostatic discharge (ESD). Based on the typical amount electrical power and signal needed in a most medical devices, the connection should be airtight or at least between 10 mm and 25 mm away from outer exposure and thus the recessed portions of receptacle 331b and of electrical plug 333a can be configured such that the path to outer exposure is greater than the ESD distance provided by the electrical power and signals traversing therethrough. Furthermore, having some distance between the electrical connector and outer exposure prevents fluids, dust, or other pollution from reaching the contacts. [0161] Fluid plug 335a is generally tubular in shape with a central canal 339 that allows for passage of fluid therethrough. Fluid receptacle 335b comprises a protuberance 341 having a central canal 343 can insert within central canal 339 of fluid plug 335a to ensure fluid connection.

[0162] Figs. 3E to 31 comprises a connector 201 for connecting cable 211 with cable 215. Connector 201 comprises a plug 201a (see Fig. 3G) and receptacle 201b (see Fig. 3H). Plug 201a comprises an electrical plug 205a and fluid plug 207 within a housing 361, in which the fluid plug is aligned adjacent to a central portion of the width of the electrical plug. Receptacle 201b comprises an electrical receptacle 205b and fluid receptacle 207b, each of which are recessed within the receptacle and aligned in a way that corresponds to the dimensions of electrical plug 205a and fluid plug 207a. Receptacle 201b shares a housing 363 with controller 209, keeping electronic components within a compact structure. As can be appreciated, the overall shape and alignment of electrical plug 205a and fluid plug 207a and the overall shape and alignment of electrical receptacle 205b and fluid receptacle 207b are each asymmetrical and configured such that plug 201a and receptacle 201b can only engage in one manner. Further, engagement of electrical plug 205a with electrical receptacle 205b can occur concurrently with engagement of fluid plug 207a with fluid receptacle 207b, and vice versa.

[0163] Electrical plug 205a is a flexible material folded over a hard-molded component 366 in a manner that gives rise to a triangular-prism-like shape having two contact faces that each comprise a plurality of electrical contacts 367a. Electrical plug 205a is connected to electrical cord 369a that extends within cable 215. Surrounding electrical plug 205a is a wall 371 that acts as a shell to protect the plug, which can further provide a means for securing the electrical plug within housing 361. Wall 371 has a height beyond the electrical plug edge 373, ensuring that electrical contacts 367a and the distal edge of the electrical plug are not exposed. Electrical receptacle 205b is a triangular-prism-like shaped cavity, comprising a plurality of electrical contacts 367b on two faces within the cavity, and is configured to snugly fit electrical plug 205a within the cavity such the electrical contracts 367a and electrical contacts 367b touch. Receptacle 201b can further comprise cavity space 375 for wall 371, which can immediately surround the electrical receptacle 205b. Notably, the connection of the electrical plug 205a and electrical receptacle 205b should be a distance away from outer exposure to prevent electrostatic discharge (ESD). Based on the typical amount electrical power and signal needed in a most medical devices, the connection should be airtight or at least between 10 mm and 25 mm away from outer exposure and thus the recessed portions of receptacle 201b and of wall 371 of electrical plug 205a can be configured such that the path to outer exposure is greater than the ESD distance provided by the electrical power and signals traversing therethrough. Furthermore, having some distance between the electrical connector and outer exposure prevents fluids, dust, or other pollution from reaching the contacts.

[0164] Fluid plug 207a is generally tubular in shape with a central canal 376 that allows for passage of fluid therethrough and provide connection to fluid line 377a, which extends within cable 215. Fluid plug 207a comprises a lip seal 378 at the distal end, which can be flexible soft material (e.g., rubber, silicone) that can conform to another surface when mated, ensuring a tight fluid connection through a central orifice within the lip seal. Fluid receptacle 207b can comprise a face with a central orifice within the recessed portion to ensure fluid connection to a fluid line 377b that extends within cable 211.

[0165] Controller 209 can comprise a printed circuit board 379, which can be in connection with electrical receptacle 205b and/or an electrical cord that extends within cable 211. Housing 363 can be held together via screws, or any other means for constructing a housing. Face plates 381 can be included to cover any screw heads or other orifices to attenuate ESD, which can be composed of any nonconductive material.

[0166] Various types of seals can be utilized for a fluid connector, including (but not limited to) lip seals, radial seals, gaskets, and washers. As discussed previously, the example system within Figs. 3C and 3D, a lip seal is provided on the fluid plug. Alternatively, a lip can be provided on the fluid receptacle (Fig. 31), or on both the fluid plug and fluid receptacle. Likewise, a radial seal or a gasket can be provided on a fluid plug, on a fluid receptacle, or on both the fluid plug and the fluid receptacle. A washer (especially a flexible soft washer) can be provided between a fluid plug and a fluid receptacle. [0167] In some implementations, a sealing mechanism is provided internally of a fluid port (e.g., where a complement inserts into a fluid port), externally (e.g., where a fluid port is inserted into its complement), or both internally and externally. Such sealing mechanisms allow for axial and/or radial scaling around a fluid port to prevent leakage and/or provide flexibility in tolerances between connector components.

[0168] Connectors such as those described can exist in a variety of configurations and should not be limited to the portrayed examples provided within Figs. 3A to 31. In some implementations, a connector can have multiple electrical contacts, which can be provided on one or more sides of the connector. Additional contacts can be implemented to allow for additional tools, sensors, or devices to be connected with a power source or monitor, thus expanding the capabilities of a medical monitoring system. Furthermore, each electrical connector can comprise any number of electrical contacts capable of fitting on a connector, including up to 1, 2, 4, 6, 8, 10, 12, 15, 20, 25, or more electrical contacts. An electrical connector can be housed with non-linear shapes (e.g., triangular, round, etc.), which allow additional sides or surfaces for the placement of electrical contacts. Alternatively, a connector can have symmetry (e.g., a central fluid connector, with an electrical connector above and below the fluid connector), such that a connector has no required “up” or “down” and can be connected in either orientation — a common example of this configuration is a USB-C port, which can be inserted in either orientation. Connectors can be utilized for a variety of operations, such as blood pressure monitoring, pulse oximetry, chemical analysis or probing, moisture detecting, conductance metering or sensing, and/or any other operation for monitoring a physiological parameter of an individual. Examples of devices that can be connected to a monitor or power source include blood pressure cuffs (e.g., finger cuffs, wrist cuffs, arm cuffs, etc.), electrodes or leads, light emitters, photosensors, thermodilution sensors, pressure sensors, flow sensors, or any other sensor.

[0169] Provided in Figs. 4A and 4B is a more detailed view of electrical plug 363a and electrical receptor 363b and the connection made therebetween. Electrical plug 363a comprises a flexible material 401 folded over a hard-molded component 373, such that when disengaged, flexible material 401 is not taut and has some give. Electrical plug has two contact faces 403 on a single surface of flexible material 401, each contact face having a plurality of electrical contacts 367a and configured to be positioned on different-facing sides of hard-molded component 373 when folded over. Electrical receptor 363b can comprise a molded material 405 having a cavity 407 that is shaped to conform to hard-molded component 373. Electrical contact 367b of electrical receptor 363b are provided within cavity 407 and can be spring loaded. When electrical plug 363a and electrical receptacle 363b are engaged (Fig. 4B), flexible material 401 conforms to cavity 407 and molded component 373, ensuring proper contact between electrical contacts 367a and electrical contacts 367b.

[0170] Various implementations of connects can be arranged in various configurations. Figures 5A to 5G illustrate additional examples of connector type arrangements that can be utilized. Such arrangements include various options of vertical orientations (e.g., Figs. 5A and 5B), side-by-side orientations (e.g., Figs. 5C to 5F), and radial orientation (e.g., Fig. 5G). The illustrated examples are meant to provide a sampling of arrangements for electrical, fluid, electronic, light, and any other type connectors and are not meant to be limiting. For example, positions of some connectors may be altered — for example, a connector may be aligned biased to one side of another connector, rather than being aligned to the midpoint (as illustrated in Figs. 5A and 5B). Similarly, in some side-by-side arranged embodiments (e.g., Figures 5D to 5F), one or more connectors may be longer (or shorter) than another connector to provide asymmetry. Additionally, while the examples within Figs. 5D to 5F provide side-by-side arrangements forming angles of approximately 180° (Fig. 5D), approximately 90° (Fig. 5E), and approximately 120° (Fig. 5F), various other angles are possible and can vary for particular uses or particular designs.

[0171] Some implementations of connectors possess asymmetry, resulting in a unique shape and “keyed” effect that prevents improper connection (e.g., inverted). In some implementations, additional features are included to increase asymmetry and/or prevent misalignment while engaging a plug with a receptacle. Such features can include protrusions, fins, pins, and/or other geometric features that can prevent incorrect insertion and/or guide alignment of a plug into its receptacle. For example, provided in Figs. 6 A and 6B are examples of a connector 601 with a plug 603a that incorporate protruding pins 605 that are complementary to grooves within receptacle 603b to provide a keyed effect.

[0172] Some implementations of connectors have a certain geometry to aid in insertion, such as having a geometry to align a plug with its complimentary receptacle. Such implementations can allow partial engagement of a connector to aid in alignment before fully engaged (Fig. 7). These implementations can prevent damage to delicate contacts that are susceptible to bending or breaking if misaligned. To allow for partial insertion, a connector 701 can comprise a pin that only allows engagement in one orientation; a plug 703a can partially engage with a receptacle 703b and then rotate about the pin until the plug is in the correctly aligned position, at which point, full engagement can be made. In lieu of a separate pin, a port can protrude or extend longitudinally (i.e., along a distal-proximal axis) within a connector to allow the insertion and rotation about the port. An extended port can be a fluid connector, electrical connector, or any other type of connector that is amenable to rotation. Generally, any connector type can be made to be a rounded protrusion and port that would be amenable to rotation.

[0173] Various shapes of pins and/or ports can be utilized that would be amenable to rotation. Such shapes can be circular, orbiform (e.g., Reuleaux triangle), or another body with a cross-sectional shape having constant width. Such shapes can be rotated within a receptacle to allow for alignment of the connector (e.g., allowing for alignment of any ports and contacts, such as fluid ports and electrical contacts). In some implementations, an alignment pin or port has an area larger than at least one dimension of all other receptacles besides its own, such that the alignment pin or port cannot be inserted into any of the other receptacles. These implementations may be useful to prevent or avoid damage to sensitive contacts that can be damage if misaligned.

[0174] To retain a connection between complementary parts of receptacle, embodiments can use various mechanisms, such as pins, rings, springs, balls, clips, clasps, or any other mechanism to maintain the connection. In certain embodiments, such mechanisms also provide tactile feedback to a user to indicate full and/or proper connection of the components. Pins include pogo pins or other spring- loaded structure that can lock into a matching divot or groove on a portion of the plug. Similarly, rings and/or springs can be used in a similar method to pins, such that rings and/or springs can fit into a groove located on a portion or entirety of a connector. For example, provided in Figs. 8A and 8B is an example of a connector with a retention mechanism. Plug 801a having fluid plug 803a that protrudes from the body of the plug to yield a port. Fluid plug 803a comprises a radial groove 805a that is configured to engage with one or more pins, a spring, a ball, a ring, radial lip, and/or another mechanism for “clicking in” and retaining within receptacle. As shown within the example of Fig. 8B, receptacle 803b comprises a spring-loaded ball-pin 805b engaged with radial groove 805a, such that plug 803a is “clicked into” the receptacle.

[0175] Various other implementations of connectors can utilize a clipping or clasping mechanism for retention and/or tactile feedback of insertion. Provided in Figs. 9A and 9B are examples of connectors utilizing retention clips. The connector in Fig. 9 A comprises plug 901a comprises protruding ridges 903a configured to engage with flexible retention clips 903b of receptacle 901 B. Similarly, the connector in Fig. 9B comprises a plug 931a having flexible retention clips 933a configured to engage with grooves 933b of receptacle 931b. Accordingly, various implementations of connectors can use retention clips that provide an outward force (e.g., Fig. 9A) or retention clips that provide an inward force (e.g., Fig. 9B). In some implementations, as depicted in Fig. 9C, a retention clip 951 can be manufactured as an integral component of electrical contacts 953, or a as depicted in Fig. 9D, a retention clip 971 can be manufactured as an integral component of a molded component 973.

[0176] In several implementations, a connector is for connecting a blood pressure cuff to a hemodynamic monitor. Provided in Figs. 10A and 10B is an example of blood pressure cuff 203 utilized for continuous blood pressure monitoring. Blood pressure cuff 203 is configured to fit onto an extremity of a patient, such as a finger, thumb, toe, etc. Blood pressure cuff 203 can comprise an inflatable bladder 1001 having an expansion chamber formed between a contact face membrane 1003 and a back membrane 1005. The contact face member 1003 can comprise a urethane material. The back membrane 1005 can comprise a PVC material. The urethane material can the thinner and/or more pliable than the PVC material. The contact face membrane 1003 and the back membrane 1005 can be sealed along an outer edge to prevent fluid leaks. The bladder 1001 can also include a tail portion 1001a. The tail portion 1001a can be formed of a portion of the contact face membrane 1003 and/or the back membrane 1005. When the tail portion 1001a is formed of both membranes 1003 and 1005, the membranes 1003 and 1005 can be sealed together, such as about a periphery of the tail portion 1001a. The expansion chamber does not extend to the tail portion 1001a. The expansion chamber can be connected to fluid line 377a via fluid port 1009. The fluid line can extend within and along cable 215 to a connector (not shown), like connector 201. Accordingly, a pump system can provide pressurized fluid to the expansion chamber via fluid line 377a such that the expansion chamber can expand and contract in perform blood pressure monitoring through the volume-clamp method.

[0177] Blood pressure cuff 203 can further comprise a light emitter 1011 for emitting light into an extremity of the patient and a light sensor 1013 for detecting light signals emitted from the light emitter 1011 (e.g., through the extremity and/or reflected/refracted therethrough). In some implementations, light emitter 1011 and light sensor 1013 work in combination to yield a photoplethysmograph for measuring diameter of an artery within the patient extremity. Light emitter 1011 and light sensor 1013 can also be utilized for other signal acquisition, such as quantification of blood oxygen levels. To perform these tasks, light emitter 1011 can emit two or more discrete bands of wavelengths within the visible and infrared range, as appropriate the applications performed. In some implementations, light emitter 1011 emits a red wavelength band and an infrared wavelength band, which can be useful for performing both photoplethysmography and blood oxygen saturation measurements. Light emitter 1011 and light sensor 1013 can each be connected to electrical cord 369a that extends within and along cable 215 to a connector (not shown). Accordingly, a power source and hemodynamic monitor can be in electrical connection with light emitter 1011 and light sensor 1013 such that the devices can be powered and transfer signals to perform blood pressure monitoring.

[0178] Light emitter 1011 and light sensor 1013 can be disposed upon a circuit mounting membrane 1017, which may be a flex circuit. The emitter 1011 and/or sensor 1013 can each protrude a height or heights off one or more surfaces of the membrane 1017. The membrane 1017 can be a portion of a flex circuit 1016 that comprises the cord 369a. The electrical connection of light emitter 1011 and light sensor 1013 to electrical cord 369a can be provided on either side or within membrane 1017, which may prevent contact between back membrane 1005 of inflatable bladder 1001 and/or any electrical traces connecting the sensor 1013 and emitter 1011 with the cord 369a.

[0179] The membrane 2017 can be attached with the inflatable bladder 1001. The attachment can be through heat sealing or an adhesive or other means. The membrane 2017 can be substantially entirely attached with the back membrane 1005. A periphery of the membrane 2017 can be aligned with the inflatable bladder 1001. Alternatively, a periphery of the membrane 2017 can be attached about a circumference of the inflatable bladder 1001 including the membranes 1003, 1005. The back membrane 1005 can comprise one or more through holes 1019. The number of through holes 1019 can correspond with the number of light sources and/or emitters, but this is not required. The through holes 2019 can align with and allow light emitter 1011 and light sensor 1013, respectively, to pass therethrough (as permitted by the protruding heights) when assembled with membrane 1017 and abut the contact face 1003. The contact face 1003 can be transparent to allow light to pass therethrough. The contact face 1003 can be sealed to the back face 1005 around circumferences 1019a of the one or more holes 1019. Advantageously, the through holes 1019 allow the emitter and/or light sensor to protrude more prominently from the membrane 2017 relative to an extremity of a patient received within the bladder 1001. This arrangement can provide enhanced emission and/or reception of red wavelengths. In an alternative arrangement, the contact face 1003 can also include through holes aligned with the through holes 1019 that are similarly sealed about their circumferences. This arrangement can facilitate even closer proximity or contact between the extremity of the patient and the sensor and/or emitter(s). The back membrane 1005 and/or surface 1017 can be dark (e.g., black, dark grey, navy blue, etc.), which may help prevent reflection of light signals, and reducing noise detected by light sensor 1013, in the red wavelength spectrum. The membrane 1017 can be adhered to the bladder 1001, such as at the back membrane 1005.

[0180] The components of blood pressure cuff 203 (e.g., light emitter 1011 light sensor 1013, fluid port 1009) can be connected to the wires and lines of cable 215 (e.g., electrical cord 369a and fluid line 377a) at an angle to reduce the amount of contact between the cable and the patient. If blood pressure cuff 203 is connected at 90-degree angle (as determined by the closest edge of the blood pressure cuff), the cable can tangle up along the patient’s hand or foot. Accordingly, in various implementations, cable 215 is connected to blood pressure cuff 203 at an angle between 30-degrees and 65-degrees (as determined by the closest edge of the blood pressure cuff). To achieve this angle, the cord 369a can be connected with the surface 1032 at the appropriate angle. Likewise, the fluid port 1009 can be connected with the bladder 1001 at the appropriate angle. The flex material forming the cord 3609a and the surface 1017 can further include a folded portion 1032. The folded portion 1032 can adjust an angle between the surface 1017 and the cord 369a. The folded portion 1032 can allow for the surface 1017 to be angled at a first angle (e.g., with respect to the cord 369a but manufactured as a flex circuit at a second angle (e.g., 90 degrees) when assembled in the cuff 203. Furthermore, to strengthen the connection point between cable 215 and blood pressure cuff 203 a stabilizer band 1021 can be included.

[0181] Blood pressure cuff 203 comprises an inflatable portion (i.e., the inflatable bladder 1001) and noninflatable portion 1023. The noninflatable portion can include a first end 1023a and a second end 1023b. The tail portion 1001a can be adhered to the noninflatable portion 1023, such as at or adjacent to the first end 1023. When blood pressure cuff 203 is position onto an extremity, the inflatable bladder 1001 and noninflatable portion 1023 encircle the extremity to form a closed cuff. In this configuration, the first end 1023a can wrap over the extremity and connect with the second end 1023b, such as by overlapping it. Inflatable bladder 1001 can encircle about Vi of to completely encircling the extremity. In some implementations, when fitted, inflatable bladder 1001 does not completely encircle the extremity, which make it more comfortable for the patient. Noninflatable portion 1023 can further include overlapping portions on the ends 1023a, 1023b such that when fitted, inflatable bladder 1001 and noninflatable portion 1023 encircle the extremity greater than 1-fold, and up to 2-fold in a hoop. Overlapping portions can include various means of fastening and securement, such as corresponding hook-and-loop fasteners 1020 or adhesives. In one example, the first end 1023a can include a hook and loop component 1020 on a first face of the noninflatable portion 1023 and the second end 1023b can include a corresponding hook and loop component (not shown) on the reverse face of the noninflatable portion 1023. The corresponding hook and loop component can extend along the reverse face for a length that provides a variety of fastening positions for connection with the hook and loop component 1020. In one example, the corresponding hook and loop component (not shown) on the reverse face can extend from the second end 1023a to or adjacent the first end 1023a or to at least a mid point between the first and second ends 1023a, 1023b.

[0182] The first end 1023a can include a grip tab 1020a. The grip tab 1020a can be free of the fastening means 1020 such as the hook and loop or Velcro. In this manner the grip tab 1020a can be free to easily grip when the first end 1023a is attached with and overlapping the second end 1023b because it does not include the means of fastening and securement 1020. Advantageously, this can facilitate a user to open and adjust the hoop formed by the noninflatable portion 1023, such as for removal or adjustment.

[0183] During volume clamp, the fluid pressure in the bladder 1001 is adjusted quickly to track the blood pressure within an artery of the extremity. To accurately measure and adjust this pressure, the noninflatable portion 1023 forms an outer shell of the cuff 203 that is non-extensible, including when formed into a hoop as described. The hoop can thereby provide structural rigidity to the inflatable portion 1001. Advantageously, the hoop formed by the portion 1023 can be a separate material from that of the inflatable portion 1001 . By forming the inflatable portion 1001 and the noninflatable portions 1023 as separate, independent materials (which may nevertheless be directly or indirectly connected by one or more other components and/or adhesives), unwanted stretching of the hoop due to pressurization of the bladder 1001 is avoided, which can induce measurement errors and/or system response time issues. Furthermore, the materials selected for the respective portions 1001 and 1023 can be optimized for their specific functions.

[0184] Blood pressure cuff 203 can further include an extended tab 1025. Extended tab 1025 can be used to align the digit such that light emitter 1011 and light sensor 1013 are appropriately located when fitted. Extended tab 1025 can include pivot point that when is folded back and over the extremity when fitted. Extended tab 1025 can further include an attachment portion 1027. The attachment portion 1027 can be folded back over the extremity (e.g., to hide a fingertip). The attachment portion 1027 can attach to noninflatable portion 1023. Attachment portion 1027 can include various means of fastening and securement, such as hook-and loop fastener 1022 or adhesives. In one example, the hook and loop component 1022 can attach with same the hook and loop component on the reverse side of the noninflatable portion 1023 as the hook and loop component 1020. Advantageously, this arrangement reduces the number of separate components needed to assemble the cuff 203. The hook and loop component on the reverse side of the noninflatable portion 1023 can have a width that provides various attachment positions for the hook and loop component 1022.

[0185] The cuff 203 can further include a coil 1031. The coil 1031 can be biased to curl into a closed or semi-closed hoop. An inner surface of the coil can be adhered with one side of the material of the membrane 1017 (such as at two ends) or alternatively directly with the back membrane 1005, such as on the tail portion 1001a. An outer surface of the coil 1031 can be adhered with the noninflatable portion 1023 and bias the noninflatable portion into the hoop structure. In one example, the noninflatable portion 1023 can be adhered with the tail portion 1001a with a portion of the coil 1031 sandwiched therebetween.

[0186] Provided in Fig. 11 is an exploded view of cable 215, depicting the connection between blood pressure cuff 203 end and the connector 201. Cable 215 comprises an outer sheath 1101 for housing electrical cord 369a and fluid line 377a. Accordingly, fluid line 377a connects fluid port 1009 and blood pressure bladder 1001 to fluid plug 207a and electrical cord 369a connects light emitter 1011 and light sensor 1013 to electrical plug 205a. Notably, light emitter 1011, light sensor 1013, surface 1017, electrical cord 369a, electrical plug 205a, and electrical contacts 367a can be fabricated as unitary piece, reducing the need for an additional electrical connector between blood pressure cuff 203 and connector 201.

[0187] Provided in Figs. 12A to 12G is an example of a method to assemble the electrical components of blood pressure cuff 203 into cable 215. One advantage of electrical plug 205a is that it comprises a flexible material capable of folding. This capability can be utilized to facilitate assembly of cable 215.

[0188] In Fig. 12A, an elongated tool 1201 is shown having a tubular head 1203 having a cavity 1204 and is connected to a shaft 1205. Elongated tool is traversed through outer sheath 1101 such that tubular head 1203 is exposed. Also shown is electrical plug 205a and electrical cord 369a, which are fabricated along with a light emitter and a light sensor of a blood pressure cuff as a unitary piece. Electrical plug 205a can comprise a microchip 1207, which can be positioned along the midline of the electrical plug. Also shown is a rod 1209.

[0189] In Fig. 12B, electrical plug 205a is rolled into a tube-like shape. Rod 1209 may be utilized to assist in rolling electrical plug 205a. In Fig. 12C, electrical plug 205a is inserted into cavity 1204. In Fig. 12D, outer sheath 1101 is pushed over elongated tool 1201 with electrical plug 205a within cavity 1204 until tubular head 1203 traverses completely through to the other side of the outer sheath. Or, in the alternative, the elongated tool is pulled through outer sheath until the tubular head traverses completely through to the other side.

[0190] Fig. 12E provides an example of the results once electrical plug 205a traverses completely through outer sheath 1101. On one end of outer sheath 1101 are the electrical components of blood pressure cuff 203 (e.g., light emitter 1011, light sensor 1013, surface 1017) and at the other end is electrical plug 205a. Further shown in Fig. 12E is hard-molded component 366. Electrical plug 205a is folded over is hard-molded component 366 to yield a two-sided plug as shown in Figs. 12F and 12G. Accordingly, electrical plug 205a comprises two faces with electrical contacts 367a that are in connection with microchip 1207 and electrical cord 369a. Electrical plug can be fastened and secured to hard-molded component 366 by snaps 1211 or any other means for fastening.

[0191] Provided in Figs. 13A to 13D are examples of housing and assembly of a connector receptacle that further comprises a controller therein. Generally, assembly requires two or more molded pieces to come together. And, in some implementations, the amount of assembly together is minimized and the amount of sealing to make air and fluid tight or otherwise reducing the amount areas of ESD release and/or of pollution ingress is minimized. Further, in some implementations, the housing surrounding the receptacle has strength to prevent crushing the components therein (e.g., if stepped upon) yet tactile and easy to handle facilitate connecting a plug into the receptacle. Provided in Figs. 13A and 13B is one example of housing assembly in which the housing comprises a controller and receptacle within two outer shell components with a long axial split therebetween. And Provided in Figs. 13C and 13D is one example of housing assembly in which the housing comprises a controller and receptacle within two outer shell components with one short angled radial split.

[0192] In Figs. 13A and 13B, receptacle 201B and controller 209 are within an outer shell housing 1301 formed by upper shell component 1301a and lower shell component 1301b, each of which comprising a hard-molded material. Upper shell component 1301a and lower shell component 1301b can be adjoined at a mid-axial line forming an axial plane connection 1303. Upper shell component 1 01a, lower shell component 1301b and internal components therein can be fastened and/or secured by any appropriate mechanism, such as screws, snaps, rivets, adhesives, etc. Outer shell housing 1301 can form a generally cuboid shape, having at least one face 1305 comprising receptacle 201b. Other geometric shapes can be utilized as easily appreciated, such as triangular prisms, pentagonal prisms, hexagonal prisms, etc. Receptacle 201b can be fabricated in a manner such that it forms face 1305 when assembled with upper shell component 1301a and lower shell component 1301b. At the end opposite of face 1305 can be a strain relief 1307, connecting outer shell housing 1301 and the components therein to cable 211. Strain relief 1307 can be a semi-soft molded material capable of provided some flex, reducing strain at the point of connection between the electrical components and fluid line within outer shell housing 1301 and the electrical cord and fluid line 377b that extend within and along cable 211. [0193] Figs. 13C and 13D provide essentially the same components and features as Figs. 13A and 13B except the outer shell housing. In Figs 13C and 13D outer shell housing 1351 are formed by elongated sleeve 1351a and endcap 1351b, each of which comprising a hard-molded material. Elongated sleeve 1351a and endcap 13511b can be adjoined at an angled radial line forming an angled radial plane connection 1353. Notably, angled radial plane connection 1353 provides a much shorter split line, making it easier seal, reducing assembly costs and risks associated with ESD. Utilizing outer shell housing 1351, internal components such as controller 209, electrical cords, and fluid lines can be inserted within elongated sleeve 1351a by sliding the sleeve overtop. Elongated sleeve 1351a, lower endcap 1351b and internal components therein can be fastened and/or secured by any appropriate mechanism, such as screws, snaps, rivets, adhesives, etc.

[0194] In some implementations, a unitary body housing (i.e., no split) is utilized. To do so, the housing, the strain relief, and receptacle face are configured to yield a seal. On one end, the receptacle face fits onto the housing to yield a seal and on the other end the strain relief fits onto the housing to yield. The strain relief and internal components can be pulled through the housing, bringing the receptacle face into position. Once pulled into final position, the strain relief, receptacle housing, and/or internal components can be fixed into place. One way to fix the components into place is to use a set of snaps, springs, pins or clips that as the internal components and strain are pulled into place, they fasten the housing (similar to the fastening mechanisms used for the plugs in Figs. 8A to 9D). Other means of fixing and securing internal components and strain relief can be utilized, such as screws, rivets, adhesives, etc.

[0195] A medical monitoring system can comprise a computing device or computing system, such as a dedicated device, desktop computer, tablet, mobile device, laptop computer, notebook computer, server system, and/or any other device capable of performing computational processes associated with connected medical tools (e.g., blood pressure monitoring via a blood pressure cuff). An example of relevant components for a computing device that can perform the processes is shown in Fig. 14. Computing devices or systems may include other components than what is shown within Fig. 14, as can be readily appreciated. A computing device 1300 can include a processor system 1402 and memory 1404. Memory 1404 can be a non-volatile memory and/or a volatile memory, and processor system 1402 can be a processor, microprocessor, controller, or a combination of processors, microprocessor, and/or controllers that performs instructions stored in memory 1404. Such instructions stored in memory 1404, when executed by the processor system, can direct the processor, to perform one or more features, functions, methods, and/or steps as appropriate to one or more medical tools connected to the medical monitoring device. Any input information or data can be stored in memory 1404. Computing device 1400 may have further include, or alternatively include hardware and/or firmware that can instruct processor system 1402 to perform these processes.

[0196] Computing device 1400 may comprise a networking device 1406 to allow communication (wired, wireless, etc.) to another device, such as through a network, near-field communication, Bluetooth, infrared, radio frequency, and/or any other suitable communication system. Such systems can be beneficial for receiving data, information, or input (e.g., data from one or more sensors) from another computing device and/or for transmitting data, information, or output (e.g., vital signs) to another device.

[0197] Computing device 1400 may comprise a controller, which may be housed with the computing device or separately (e.g., within a connector housing). Computing device 1300 and the controller can share the same processor, memory, power source, and/or other electronic or electrical components.

EXAMPLES

[0198] Example 1. A multifunctional connector, comprising: a plug comprising two or more type-plugs for connecting at least two different types of energy or matter; and a receptacle comprising a type -receptacle for each type-plug, wherein the receptacle is configured to receive the plug; wherein when the plug is inserted into the receptacle, the plug and the receptacle are each configured such that each type-plug is concurrently and accurately connected with its cognate type-receptacle.

[0199] Example 2. The multifunctional connector of example 1, wherein the different types of energy or matter are selected from: electrical, fluid, electronic, or light.

[0200] Example 3. The multifunctional connector of example 1 or 2, wherein the two or more typeplugs comprises an electrical plug, wherein the electrical plug comprises a flexible material with electrical contacts disposed thereupon, wherein the flexible material is affixed to a hard-molded material and configured to be received by an electrical receptacle to yield an electrical connection.

[0201] Example 4. The multifunctional connector of example 3, wherein the electrical receptacle comprises a cavity matching the shape of the hard-molded material; wherein electrical contacts are disposed within the cavity configured to align with the electrical contacts disposed upon the flexible material when the electrical plug is inserted within the electrical receptacle.

[0202] Example 5. The multifunctional connector of example 3 or 4, wherein the plug further comprises a wall configured to surround at least a portion of the electrical plug, wherein the wall extends from a face of the plug a distance that is greater than a distance that the electrical plug extends from said face of the plug.

[0203] Example 6. The multifunctional connector of example 5, wherein the receptacle comprises a cavity configured to receive the wall when the plug is inserted within the receptacle.

[0204] Example 7. The multifunctional connector of any one of examples 3-6, wherein the electrical plug is in direct connection with electrical components of a medical tool via an electrical cord such that there is no additional electrical plug-and-receptacle connection intervening between the electrical plug and the electrical components of the medical tool.

[0205] Example 8. The multifunctional connector of example 7, wherein the electrical cord traverses within and along an outer sheath of a cable, wherein the electrical components of the medical tool are disposed upon a surface, wherein each of the surfaces for the electrical components and the flexible material have a width greater than the greatest diameter of the outer sheath.

[0206] Example 9. The multifunctional connector of any one of examples 1-8, wherein the two or more type -plugs comprises a fluid plug, wherein the fluid plug comprises a port configured to be received by a fluid receptacle to yield a fluid connection.

[0207] Example 10. The multifunctional connector of example 9, wherein the fluid connection further comprises a lip seal, a radial seal, or a washer.

[0208] Example I E The multifunctional connector of any one of examples 1-10, wherein the two or more type-plugs comprises an electronic plug, wherein the electronic plug is configured to be received by an electronic receptacle to yield an electronic connection.

[0209] Example 12. The multifunctional connector of any one of examples 1-11, wherein the two or more type-plugs comprises a fiber optic plug, wherein the fiber optic plug is configured to be received by a fiber optic receptacle to yield a light energy connection.

[0210] Example 13. The multifunctional connector of any one of examples 1-12 wherein the receptacle is in connection with a controller and shares housing with the controller.

[0211] Example 14. The multifunctional connector of example 13, wherein the housing has a radial split line.

[0212] Example 15. The multifunctional connector of example 13, wherein the housing has no split line.

[0213] Example 16. An electrical cord system, comprising: an electrical cord; a flexible material comprising a plurality of electrical contacts in connection with the electrical cord; electrical components of a medical tool in connection with the electrical cord; and an outer sheath surrounding the electrical cord.

[0214] Example 17. The electrical cord system of example 16, wherein the flexible material is in direct connection with the electrical components of the medical tool via the electrical cord such that there is no electrical plug-and-receptacle connection intervening between the flexible material and the electrical components of the medical tool.

[0215] Example 18. The electrical cord system of example 17, wherein the electrical components of the medical tool are disposed upon a surface, wherein each of the surfaces for the electrical components and the flexible material have a width greater than the greatest diameter of the outer sheath. [0216] Example 19. The electrical cord system of example 16, 17, or 18, wherein the flexible material is fastened to a hard material.

[0217] Example 20. The electrical cord system of example 19, wherein the flexible material, electrical contacts, and hard material form an electrical plug or an electrical receptacle.

[0218] Example 21 . A multifunctional connector for medical tools utilizing fluid and electrical signals, the connector comprising: a plug comprising an electrical plug and a fluid plug; and a receptacle comprising an electrical receptacle and fluid receptacle; wherein when the plug is inserted into the receptacle, the plug and the receptacle are each configured such that electrical plug and fluid plug are concurrently and accurately connected with its cognate receptacle.

[0219] Example 22. The multifunctional connector of example 21, wherein the electrical plug comprises a flexible material with electrical contacts disposed thereupon, wherein the flexible material is affixed to a hard-molded material and configured to be received by the electrical receptacle to yield an electrical connection.

[0220] Example 23. The multifunctional connector of example 22, wherein the electrical receptacle comprises a cavity matching the shape of the hard-molded material; wherein electrical contacts are disposed within the cavity configured to align with the electrical contacts disposed upon the flexible material when the electrical plug is inserted within the electrical receptacle.

[0221] Example 24. The multifunctional connector of example 22 or 23, wherein the plug further comprises a wall configured to surround at least a portion of the electrical plug, wherein the wall extends from a face of the plug a distance that is greater than a distance that the electrical plug extends from said face of the plug.

[0222] Example 25. The multifunctional connector of example 24, wherein the receptacle comprises a cavity configured to receive the wall when the plug is inserted within the receptacle.

[0223] Example 26. The multifunctional connector of any one of examples 21-25, wherein the electrical plug is in direct connection with electrical components of a medical tool via an electrical cord such that there is no additional electrical plug-and-rcccptaclc connection intervening between the electrical plug and the electrical components of the medical tool.

[0224] Example 27. The multifunctional connector of example 26, wherein the electrical cord traverses within and along an outer sheath of a cable, wherein the electrical components of the medical tool are disposed upon a surface, wherein each the surface for the electrical components and the electrical plug have a width greater than the greatest diameter of the outer sheath.

[0225] Example 28. The multifunctional connector of example 27, wherein the fluid plug is connection with the medical tool via a fluid line, wherein the fluid line traverses within and along an outer sheath of a cable.

[0226] Example 29. The multifunctional connector of example 26, 27, or 28, wherein the medical tool is a blood pressure cuff.

[0227] Example 30. The multifunctional connector of example 29, wherein the electrical components comprise a light emitter and a light sensor.

[0228] Example 31 . The multifunctional connector of example 29 or 30, wherein the receptacle is configured to connect to a hemodynamic monitoring system.

[0229] Example 32. The multifunctional connector of any one of examples 21-31 wherein the receptacle is in connection with a controller and shares housing with the controller.

[0230] Example 33. The multifunctional connector of example 32, wherein the housing has a radial split line.

[0231] Example 34. The multifunctional connector of example 32, wherein the housing has no split line.

[0232] Example 35. A method for assembling an electrical cable, comprising: providing an electrical cord system, wherein the electrical system comprises: an electrical cord; a flexible material comprising a microchip attached along an axial midline and a plurality of electrical contacts in connection with the electrical cord; electrical components of a medical tool in connection with the electrical cord; and an outer sheath surrounding the electrical cord; rolling the flexible material into a compact rolled shape; inserting the flexible material into a cavity of an elongated tool having a tubular head with the cavity and a rod; and maneuvering the outer sheath over the elongated tool such that the flexible material traverses the outer sheath until reaches the other side.

[0233] Example 36. The method of example 35, further comprising affixing the flexible material to hard material to yield an electrical plug or an electrical receptacle.

[0234] Example 37. The method of example 35 or 36, wherein the flexible material is in direct connection with the electrical components of the medical tool via the electrical cord such that there is no electrical plug-and-receptacle connection intervening between the flexible material and the electrical components of the medical tool. [0235] Example 38. The method of example 37, wherein the electrical components of the medical tool are disposed upon a surface, wherein each the surface for the electrical components and the flexible material have a width greater than the greatest diameter of the outer sheath.

[0236] Example 39. The method of any one of examples 35-38, wherein the electrical components comprise a light emitter and a light sensor.

[0237] Example 40. The method of example 39, wherein the medical tool is a blood pressure cuff. [0238] Example 41. A blood pressure cuff comprising: an inflatable bladder, a noninflatable portion adjacent to the inflatable bladder, wherein the inflatable bladder and the noninflatable portion are configured to encircle an extremity of a patient; a light emitter adjacent to the inflatable bladder; a light sensor adjacent to the inflatable bladder; and a cable for transmitting electrical signals and fluid with a hemodynamic monitor.

[0239] Example 42. The blood pressure cuff of example 41, wherein the noninflatable portion includes a first end that overlaps and fastens with a second end to form a structural hoop providing rigidity to the inflatable bladder.

[0240] Example 43. The blood pressure cuff of example 41 or 42, wherein the noninflatable portion is configured to form a structural hoop that is independent of the inflatable bladder.

[0241] Example 44. The blood pressure cuff of example 41, 42, or 43, wherein the cable is connected to the cuff at an angle between 30-degrees and 65-degrees.

[0242] Example 45. The blood pressure cuff of any one of examples 41-44, wherein a surface behind the light emitter and the light sensor is dark.

[0243] Example 46. The blood pressure cuff of any one of examples 41-45, wherein the light emitter is configured to emit two or more discrete bands of wavelengths within the visible and infrared range such that, along with the light sensor and light sensor are configured to perform photoplethysmography and blood oxygen saturation measurements from a single light emitter and a single light sensor.

[0244] Example 47. The blood pressure cuff of any one of examples 41-46 further comprising an extended tab configured to align the extremity such that the light emitter and the light sensor are appropriately located when fitted.

[0245] Example 48. The blood pressure cuff of any one of examples 41-47, wherein the light emitter and the light sensor are directly connected with an electrical plug via an electrical cord that traverses through and along the cable.

[0246] Example 49. The blood pressure cuff of example 48, wherein there is no additional electrical plug-and-receptacle connection intervening between the electrical plug and the light emitter and light sensor. [0247] Example 50. The blood pressure cuff of example 48 or 49, wherein the light emitter and the light sensor are disposed upon a surface, wherein each the surface for the light emitter and the light sensor and the electrical plug have a width greater than the greatest diameter of the cable.

[0248] Example 51. A hybrid connector, comprising: a body comprising a first connector and a second connector, wherein the first connector is configured to transmit a fluid, and wherein the second connector is configured to transmit an electrical signal.

[0249] Example 52. The hybrid connector of example 51, wherein the fluid is a gas.

[0250] Example 53. The hybrid connector of examples 51 or 52, wherein the fluid is selected from air, oxygen, argon, nitrogen, and helium.

[0251] Example 54. The hybrid connector of examples 51 or 52, wherein the fluid is a liquid.

[0252] Example 55. The hybrid connector of any of examples 51-54, wherein the second connector comprises a plurality of electrical contacts.

[0253] Example 56. The hybrid connector of any of examples 51-55, wherein the second connector is configured to receive an electrical signal from a sensor or device.

[0254] Example 57. They hybrid connector of example 56, wherein the sensor is selected from a pulse oximeter, a moisture sensor, a pH sensor, and a temperature sensor.

[0255] Example 58. The hybrid connector of any of examples 51-55, wherein the electrical signal controls a device.

[0256] Example 59. The hybrid connector of any of examples example 51-58, wherein first connector transmits the fluid to a cuff.

[0257] Example 60. The hybrid connector of example 59, wherein the cuff is selected from a finger cuff, a wrist cuff, and an arm cuff.

[0258] Example 61. The hybrid connector of any of examples 51-60, wherein the first connector and second connector are arranged in a side-by-side configuration, a vertical configuration, or a; radial orientation.

[0259] Example 62. The hybrid connector of any of examples 51-60, further comprising a third connector configured to transmit an electrical signal, wherein the first, second, and third connectors arc arranged in a side-by-side configuration.

[0260] Example 63. The hybrid connector of example 62, wherein an angle formed by the second connector, the first connector, and the third connector is approximately 90°.

[0261] Example 64. The hybrid connector of any of examples 51-63, further comprising a sealing mechanism located on the first connector to prevent leakage of the fluid.

[0262] Example 65. The hybrid connector of any of examples 51-64, further comprising a retention mechanism.

[0263] Example 66. The hybrid connector of example 65, wherein the retention mechanism is selected from a spring, a ring, a pin, a ball, a groove, a clip, and a clasp. [0264] Example 67. The hybrid connector of any of examples 51-63, wherein the first connector protrudes from the body.

[0265] Example 68. The hybrid connector of example 67, wherein the first connector has a cross- sectional shape having a constant width.

[0266] Example 69. The hybrid connector of example 67, wherein the first connector has a cross- sectional shape selected from circular and orbiform.

[0267] Example 70. A medical device, comprising: a sensor; and a controller for relaying signals between the sensor; wherein the sensor is connected to the controller via a hybrid connector of examples 1-15.

[0268] Example 71. The medical device of example 70, wherein the hybrid connector comprises: a body holding a first connector and a second connector, wherein the first connector is configured to transmit a fluid, and wherein the second connector is configured to transmit an electrical signal.

[0269] Example 72. The medical device of example 71, wherein the fluid is a gas.

[0270] Example 73. The medical device of examples 71 or 72, wherein the fluid is selected from air, oxygen, argon, nitrogen, and helium.

[0271] Example 74. The medical device of examples 71 or 72, wherein the fluid is a liquid.

[0272] Example 75. The medical device of any of examples 71-74, wherein the second connector comprises a plurality of electrical contacts.

[0273] Example 76. The medical device of any of examples 71-75, wherein the second connector is configured to receive an electrical signal from a sensor or device.

[0274] Example 77. The medical device of example 76, wherein the sensor is selected from a pulse oximeter, a moisture sensor, a pH sensor, and a temperature sensor.

[0275] Example 78. The medical device of any of examples 71-75, wherein the electrical signal controls a device.

[0276] Example 79. The medical device of any of examples example 71-78, wherein first connector transmits the fluid to a cuff.

[0277] Example 80. The medical device of example 79, wherein the cuff is selected from a finger cuff, a wrist cuff, and an arm cuff.

[0278] Example 81. The medical device of any of examples 71-80, wherein the first connector and second connector are arranged in a side-by-side configuration, a vertical configuration, or a; radial orientation.

[0279] Example 82. The medical device of any of examples 71-80, further comprising a third connector configured to transmit an electrical signal, wherein the first, second, and third connectors are arranged in a side-by-side configuration. [0280] Example 83. The medical device of example 82, wherein an angle formed by the second connector, the first connector, and the third connector is approximately 90°.

[0281] Example 84. The medical device of any of examples 71-83, further comprising a sealing mechanism located on the first connector to prevent leakage of the fluid.

[0282] Example 85. The medical device of any of examples 71-84, further comprising a retention mechanism.

[0283] Example 86. The medical device of example 85, wherein the retention mechanism is selected from a spring, a ring, a pin, a ball, a groove, a clip, and a clasp.

[0284] Example 87. The medical device of any of examples 71-83, wherein the first connector protrudes from the body.

[0285] Example 88. The medical device of example 87, wherein the first connector has a cross- sectional shape having a constant width.

[0286] Example 89. The medical device of example 87, wherein the first connector has a cross- sectional shape selected from circular and orbiform.

[0287] Example 90. A method of connecting a hybrid connector, comprising: inserting a guiding mechanism attached to a hybrid connector into a receptacle, wherein the hybrid connector comprises a body holding a first connector and a second connector, wherein the first connector is configured to transmit a fluid, and wherein the second connector is configured to transmit an electrical signal; rotating the hybrid connector around the guiding mechanism until the first connector and the second connector are aligned with the receptacle; and completely inserting the hybrid connector into the receptacle.

[0288] Example 91. The method of example 90, wherein the first connector protrudes from the body and forms the guiding mechanism.

[0289] Example 92. The method of example 91, wherein the first connector has a cross-sectional shape having a constant width.

[0290] Example 93. The method of example 91 or 92, wherein the first connector has a cross- sectional shape selected from circular and orbiform.

[0291] Example 94. The method of example 90, wherein the second connector protrudes from the body and forms the guiding mechanism.

[0292] Example 95. The method of example 94, wherein the first connector has a cross-sectional shape having a constant width.

[0293] Example 96. The method of example 94 or 95, wherein the first connector has a cross- sectional shape selected from circular and orbiform.

[0294] Example 97. The method of any of examples 90-96, wherein the hybrid connector further comprises a retention mechanism. [0295] Example 98. The method of example 97, wherein the retention mechanism is selected from a spring, a ring, a pin, a ball, a groove, a clip, and a clasp.

[0296] Example 99. The method of example 98, wherein completely inserting the hybrid connector into the receptacle comprises inserting the hybrid connector until the retention connector provides tactile feedback.

[0297] Example 100. A blood pressure cuff for performing volume clamp blood pressure measurements comprising: an inflatable bladder including a first layer comprising a urethane material and a second layer comprising a PVC material, the first layer sealed with the second layer at a first outer seal to form an inflatable expansion chamber therein, wherein the first layer is thinner and more pliable than the second layer, and a fluid port for transmitting fluid within the expansion chamber; a flex circuit including a light emitter configured to emit two or more discrete bands of wavelengths within the red and infrared range, a light sensor configured to detect the two or more discrete bands of wavelengths within the red and infrared range, and a cable for transmitting electrical signals with a hemodynamic monitor; a coil biased to form a closed or semi-closed hoop with an inner surface and an outer surface; a noninflatable portion configured to encircle an extremity of a patient including a first end configured to overlap and fasten with a second end to form a structural hoop providing rigidity to the inflatable bladder and wherein the structural hoop is independent of the expansion of the inflatable bladder; wherein, in an assembled configuration: the light emitter is raised a first height from a first surface of the flex circuit and projected through a first opening within the second layer of the inflatable bladder to contact the first layer of the inflatable bladder, the first layer sealed with the second layer about the first opening and the first layer comprising a transparent material; the light sensor is raised a second height from the first surface of the flex circuit and projected through a second opening within the second layer of the inflatable bladder to contact the first iayer of the inflatable bladder, the first layer sealed with the second layer about the second opening; the first surface of the flex circuit adhered with the second layer of the inflatable bladder; an inner surface of the coil adhered with a second surface of the flex circuit; and a first surface of the noninflatable portion adhered with the outer surface of the coil.

[0298] Example 101. The blood pressure cuff of example 100 wherein the cable is connected to the inflatable bladder at an angle between 30-degrees and 65-degrees.

[0299] Example 102. The blood pressure cuff of any one of examples 100-101, wherein a surface behind the light emitter and the light sensor is dark. [0300] Example 103. A blood pressure cuff for preforming volume clamp blood pressure measurements comprising: an inflatable bladder with an inflatable expansion chamber therein and a fluid port for transmitting fluid within the expansion chamber; a light emitter and a light sensor configured to measure a plethysmograph, and a cable for transmitting electrical signals with a hemodynamic monitor; and a noninflatable portion configured to encircle an extremity of a patient including a first end configured to overlap and fasten with a second end to form a structural hoop providing rigidity to the inflatable bladder and wherein the structural hoop is independent of the expansion of the inflatable bladder.

[0301] Example 104: The blood pressure cuff of Example 103 wherein the inflatable bladder includes a first layer and a second layer,

[0302] Example 105: The blood pressure cuff of Example 104 wherein the first layer is sealed with the second layer at a first outer seal to form the inflatable expansion chamber therein.

[0303] Example 106: The blood pressure cuff of any of Examples 104-105 wherein the first layer is thinner and more pliable than the second layer.

[0304] Example 107: The blood pressure cuff of any of Examples 104-106 wherein the first layer comprises a urethane material and/or the second layer comprises a PVC material.

[0305] Example 108: The blood pressure cuff of any of Examples 103-107 wherein the light emitter is configured to emit two or more discrete bands of wavelengths within the red and infrared range and the light sensor is configured to detect the two or more discrete bands of wavelengths within the red and infrared range.

[0306] Example 109: The blood pressure cuff of any of Examples 104-108 wherein the light emitter is raised a first height from a first surface of a mounting surface and projected through a first opening within the second layer of the inflatable bladder to contact the first layer of the inflatable bladder, the first layer sealed with the second layer about the first opening and the first layer comprising a transparent material.

[0307] Example 110: The blood pressure cuff of any of Examples 104-109 wherein the light sensor is raised a second height from the first surface of the flex circuit and projected through a second opening within the second layer of the inflatable bladder to contact the first layer of the inflatable bladder, the first layer sealed with the second layer about the second opening.

[0308] Example 111 : The blood pressure cuff of any of Examples 103-110 wherein the light emitter and/or the light sensor are mounted on a flex circuit.

[0309] Example 112: The blood pressure cuff of any of Examples 103-111 further comprising a coil biased to form a closed or semi-closed hoop with an inner surface and an outer surface. [0310] Example 113: The blood pressure cuff of any of Examples 103-112 wherein a first surface of the flex circuit is adhered with a second layer of the inflatable bladder.

[0311] Example 114: The blood pressure cuff of any of Examples 103-113 wherein the inner surface of the coil is adhered with a second surface of the flex circuit.

[0312] Example 1 15: The blood pressure cuff of any of Examples 103-1 14 wherein a first surface of the noninflatable portion is adhered with the outer surface of the coil.

[0313] Example 116. The blood pressure cuff of any of Examples 103-115, wherein a surface behind the light emitter and the light sensor is dark.

[0314] Example 117. The blood pressure cuff of any of Examples 103-116, wherein the noninflatable portion includes an alignment tab having a hook and loop component configured to attached with a corresponding hook and loop component on the noninflatable portion.

[0315] Example 118. The blood pressure cuff Example 117, wherein the first end of the noninflatable portion includes a hook and loop component configured to attached along the same corresponding hook and loop component on the noninflatable portion as the alignment tab.

[0316] Example 119. The blood pressure cuff of any of Examples 103-118, wherein the first end of the noninflatable portion includes grip tab that does not include a fastener component for attachment with the second end of the noninflatable portion and is instead configured to be grippable when the first end of the noninflatable poriton is attached with the second end of the noninflatable portion.

Claims

WHAT IS CLAIMED IS:

1. A multifunctional connector, comprising: a plug comprising two or more type-plugs for connecting at least two different types of energy or matter; and a receptacle comprising a type-receptacle for each type-plug, wherein the receptacle is configured to receive the plug; wherein when the plug is inserted into the receptacle, the plug and the receptacle are each configured such that each type -plug is concurrently and accurately connected with its cognate typereceptacle.

2. The multifunctional connector of claim 1, wherein the different types of energy or matter are selected from: electrical, fluid, electronic, or light.

3. The multifunctional connector of claim 1 or 2, wherein the two or more type -plugs comprises an electrical plug, wherein the electrical plug comprises a flexible material with electrical contacts disposed thereupon, wherein the flexible material is affixed to a hard-molded material and configured to be received by an electrical receptacle to yield an electrical connection.

4. The multifunctional connector of claim 3, wherein the electrical receptacle comprises a cavity matching the shape of the hard-molded material; wherein electrical contacts are disposed within the cavity configured to align with the electrical contacts disposed upon the flexible material when the electrical plug is inserted within the electrical receptacle.

5. The multifunctional connector of claim 3 or 4, wherein the plug further comprises a wall configured to surround at least a portion of the electrical plug, wherein the wall extends from a face of the plug a distance that is greater than a distance that the electrical plug extends from said face of the Plug-

6. The multifunctional connector of claim 5, wherein the receptacle comprises a cavity configured to receive the wall when the plug is inserted within the receptacle.

7. The multifunctional connector of any one of claims 3-6, wherein the electrical plug is in direct connection with electrical components of a medical tool via an electrical cord such that there is no additional electrical plug-and-receptacle connection intervening between the electrical plug and the electrical components of the medical tool.

8. The multifunctional connector of claim 7, wherein the electrical cord traverses within and along an outer sheath of a cable, wherein the electrical components of the medical tool are disposed upon a surface, wherein each the surface for the electrical components and the flexible material have a width greater than the greatest diameter of the outer sheath.

9. The multifunctional connector of any one of claims 1-8, wherein the two or more type-plugs comprises a fluid plug, wherein the fluid plug comprises a port configured to be received by a fluid receptacle to yield a fluid connection.

10. The multifunctional connector of claim 9, wherein the fluid connection further comprises a lip seal, a radial seal, or a washer.

11. The multifunctional connector of any one of claims 1-10, wherein the two or more type -plugs comprises an electronic plug, wherein the electronic plug is configured to be received by an electronic receptacle to yield an electronic connection.

12. The multifunctional connector of any one of claims 1-11, wherein the two or more type -plugs comprises a fiber optic plug, wherein the fiber optic plug is configured to be received by a fiber optic receptacle to yield a light energy connection.

13. The multifunctional connector of any one of claims 1-12 wherein the receptacle is in connection with a controller and shares housing with the controller.

14. The multifunctional connector of claim 13, wherein the housing has a radial split line.

15. The multifunctional connector of claim 13, wherein the housing has no split line.

16. An electrical cord system, comprising: an electrical cord; a flexible material comprising a plurality of electrical contacts in connection with the electrical cord; electrical components of a medical tool in connection with the electrical cord; and an outer sheath surrounding the electrical cord.

17. The electrical cord system of claim 16, wherein the flexible material is in direct connection with the electrical components of the medical tool via the electrical cord such that there is no electrical plug-and-receptacle connection intervening between the flexible material and the electrical components of the medical tool.

18. The electrical cord system of claim 17, wherein the electrical components of the medical tool are disposed upon a surface, wherein each the surface for the electrical components and the flexible material have a width greater than the greatest diameter of the outer sheath.

19. The electrical cord system of claim 16, 17, or 18, wherein the flexible material is fastened to a hard material.

20. The electrical cord system of claim 19, wherein the flexible material, electrical contacts, and hard material form an electrical plug or an electrical receptacle.

21. A multifunctional connector for medical tools utilizing fluid and electrical signals, the connector comprising: a plug comprising an electrical plug and a fluid plug; and a receptacle comprising an electrical receptacle and fluid receptacle; wherein when the plug is inserted into the receptacle, the plug and the receptacle are each configured such that electrical plug and fluid plug are concurrently and accurately connected with its cognate receptacle.

22. The multifunctional connector of claim 21, wherein the electrical plug comprises a flexible material with electrical contacts disposed thereupon, wherein the flexible material is affixed to a hard- molded material and configured to be received by the electrical receptacle to yield an electrical connection.

23. The multifunctional connector of claim 22, wherein the electrical receptacle comprises a cavity matching the shape of the hard-molded material; wherein electrical contacts are disposed within the cavity configured to align with the electrical contacts disposed upon the flexible material when the electrical plug is inserted within the electrical receptacle.

24. The multifunctional connector of claim 22 or 23, wherein the plug further comprises a wall configured to surround at least a portion of the electrical plug, wherein the wall extends from a face of the plug a distance that is greater than a distance that the electrical plug extends from said face of the Plug-

25. The multifunctional connector of claim 24, wherein the receptacle comprises a cavity configured to receive the wall when the plug is inserted within the receptacle.

26. The multifunctional connector of any one of claims 21-25, wherein the electrical plug is in direct connection with electrical components of a medical tool via an electrical cord such that there is no additional electrical plug-and-receptacle connection intervening between the electrical plug and the electrical components of the medical tool.

27. The multifunctional connector of claim 26, wherein the electrical cord traverses within and along an outer sheath of a cable, wherein the electrical components of the medical tool are disposed upon a surface, wherein each the surface for the electrical components and the electrical plug have a width greater than the greatest diameter of the outer sheath.

28. The multifunctional connector of claim 27, wherein the fluid plug is connection with the medical tool via a fluid line, wherein the fluid line traverses within and along an outer sheath of a cable.

29. The multifunctional connector of claim 26, 27, or 28, wherein the medical tool is a blood pressure cuff.

30. The multifunctional connector of claim 29, wherein the electrical components comprise a light emitter and a light sensor.

31. The multifunctional connector of claim 29 or 30, wherein the receptacle is configured to connect to a hemodynamic monitoring system.

32. The multifunctional connector of any one of claims 21-31 wherein the receptacle is in connection with a controller and shares housing with the controller.

33. The multifunctional connector of claim 32, wherein the housing has a radial split line.

34. The multifunctional connector of claim 32, wherein the housing has no split line.

35. A blood pressure cuff for performing volume clamp blood pressure measurements comprising: an inflatable bladder including a first layer comprising a urethane material and a second layer comprising a PVC material, the first layer sealed with the second layer at a first outer seal to form an inflatable expansion chamber therein, wherein the first layer is thinner and more pliable than the second layer, and a fluid port for transmitting fluid within the expansion chamber; a flex circuit including a light emitter configured to emit two or more discrete bands of wavelengths within the red and infrared range, a light sensor configured to detect the two or more discrete bands of wavelengths within the red and infrared range, and a cable for transmitting electrical signals with a hemodynamic monitor; a coil biased to form a closed or semi-closed hoop with an inner surface and an outer surface; a noninflatable portion configured to encircle an extremity of a patient including a first end configured to overlap and fasten with a second end to form a structural hoop providing rigidity to the inflatable bladder and wherein the structural hoop is independent of the expansion of the inflatable bladder; wherein, in an assembled configuration: the light emitter is raised a first height from a first surface of the flex circuit and projected through a first opening within the second layer of the inflatable bladder to contact the first layer of the inflatable bladder, the first layer sealed with the second layer about the first opening and the first layer comprising a transparent material; the light sensor is raised a second height from the first surface of the flex circuit and projected through a second opening within the second layer of the inflatable bladder to contact the first layer of the inflatable bladder, the first layer sealed with the second layer about the second opening; the first surface of the flex circuit adhered with the second layer of the inflatable bladder; an inner surface of the coil adhered with a second surface of the flex circuit; and a first surface of the noninflatable portion adhered with the outer surface of the coil.