Patent Application
20200375568
The present application pertains to medical monitoring, and more particularly to ultrasound systems including auxiliary electrocardiogram (ECG) leads.
Ultrasound imaging is a useful imaging modality in a number of environments. For example, in the field of healthcare, internal structures of a patient's body may be imaged before, during or after a therapeutic intervention. A healthcare professional may hold a portable ultrasound probe, or transducer, in proximity to the patient and move the transducer as appropriate to visualize one or more target structures in a region of interest in the patient. A transducer may be placed on the surface of the body or, in some procedures, a transducer is inserted inside the patient's body. The healthcare professional coordinates the movement of the transducer so as to obtain a desired representation on a screen, such as a two-dimensional cross-section of a three-dimensional volume.
Ultrasound imaging is typically performed in a clinical setting, by trained ultrasound experts, utilizing ultrasound systems that are specifically designed to acquire ultrasound data. Similarly, electrocardiography (ECG) is typically performed in a clinical setting by trained experts and utilizing equipment that is specifically designed for acquiring electrocardiography data.
Acquisition of these different types of clinical data, i.e., ultrasound data and ECG data, is thus conventionally performed utilizing separate pieces of equipment, and often in separate patient visits or separate environments.
For many years, ultrasound imaging was effectively confined to large equipment operating in a hospital environment. Recent technological advances, however, have produced smaller ultrasound systems that increasingly are deployed in frontline point-of-care environments, e.g., doctor's offices.
The present application, in part, addresses a desire for smaller clinical data acquisition systems, such as ultrasound and electrocardiogram (ECG) systems, having greater portability, lower cost, and ease of use, while at the same time providing high quality measurements. Further, the present application, in part, addresses a desire for clinical data acquisition systems, such as ultrasound systems, having a probe that may be electrically or communicatively coupled to an auxiliary ECG assembly having ECG electrodes and which is capable of sensing ECG signals of a patient while simultaneously acquiring ultrasound images.
In at least one embodiment, a handheld probe includes a housing and an ultrasound sensor that is at least partially surrounded by the housing. An auxiliary ECG connector is included as part of the handheld probe and is at least partially exposed by the housing. The auxiliary ECG connector is configured to electrically couple one or more ECG leads to the handheld probe.
In at least one embodiment, a clinical data acquisition device is provided that includes a handheld probe and an auxiliary ECG assembly. The handheld probe includes at least one sensor configured to acquire physiological data of a patient. The auxiliary ECG assembly includes a plurality of ECG leads configured to acquire ECG data of the patient. The auxiliary ECG assembly is communicatively coupleable to the handheld probe.
In at least one embodiment, a clinical data acquisition system is provided that includes a handheld probe, an auxiliary ECG assembly, and a mobile clinical viewing device. The handheld probe includes at least one sensor configured to acquire physiological data of a patient. The auxiliary assembly includes a plurality of ECG leads configured to acquire ECG data of the patient, and the auxiliary ECG assembly is communicatively coupleable to the handheld probe. The mobile clinical viewing device is communicatively coupled to the ultrasound probe, and the mobile clinical viewing device includes a display configured to display the acquired physiological data of the patient and the acquired ECG data of the patient.
Three primary techniques used extensively in medicine for physiological assessment, e.g., of the cardiothoracic cavity, include sonography, auscultation, and electrocardiography. Each technique provides different kinds of information usable to assess the anatomy and physiology of the organs present in a region of interest, e.g., the cardiothoracic cavity.
Medical ultrasound imaging (sonography) has been one of the most effective methods for examining both the heart and the lungs. Ultrasound imaging provides anatomical information of the heart as well as qualitative and quantitative information on blood flow through valves and main arteries such as the aorta and pulmonary artery. One significant advantage of ultrasound imaging is that, with its high frame rate, it can provide dynamic anatomical and blood flow information which is vital for assessing the condition of the heart which is always in motion. Combined with providing blood flow information, ultrasound imaging provides one of the best available tools for assessing the structure and function of heart chambers, valves, and arteries/veins. Similarly, ultrasound imaging can assess fluid status in the body and is the best tool in assessing pericardial effusion (fluid around the heart).
In the case of lungs, ultrasound imaging provides information on the anatomical structure of the lungs with the ability to show specific imaging patterns associated with various lung diseases and with an ability to assess fluid status around the lung and within individual compartments of the lung including the assessment of pericardial effusion.
Auscultation allows for assessing the physiological condition and function of organs such as the heart and lungs by capturing audible sounds that are produced by or otherwise associated with these organs. The condition and function of these organs, or other organs as the case may be, can be evaluated based on clinical information indicating how different sounds are associated with various physiological phenomena and how the sounds change for each pathological condition.
Electrocardiography (EKG or ECG) is focused on the heart by capturing the electrical activity of the heart as it is related to the various phases of the cardiac cycle. The condition and function of the heart may be evaluated based on clinical knowledge indicating how the electrical activity of the heart changes based on various pathological conditions.
The present disclosure provides systems, devices, and methods in which auxiliary ECG assemblies and electrodes are operable to communicate with a handheld probe, and the handheld probe in turn is is operable to acquire ultrasound and ECG signals using the auxiliary ECG electrodes. In some embodiments, the handheld probe is further operable to acquire auscultation signals.
In some embodiments, some or all of these three types of signals (i.e., auscultation, ECG, and ultrasound signals) are synchronously acquired and displayed via one or more audiovisual outputs. Providing a combination of two or more of auscultation, ECG, and ultrasound data significantly enhances the ability of doctors and others to accurately and efficiently assess the physiological condition of a patient, especially of the patient's heart and lungs.
The probe 40 is electrically coupled to the tablet 20 by a cable 12. The cable 12 includes a connector 14 that detachably connects the probe 40 to the tablet 20. The cable 12 facilitates bi-directional communication between the tablet 20 and the probe 40.
In some embodiments, the probe 40 need not be electrically coupled to the tablet 20, but may operate independently of the tablet 20, and the probe 40 may communicate with the tablet 20 via a wireless communication channel.
The tablet 20 shown in
In some embodiments, the display 21 may be a touch screen capable of receiving input from a user that touches the screen. In such embodiments, some or all of an external surface of the display 21 may be capable of receiving user input via touch. In some embodiments, the tablet 20 may include a user interface having one or more buttons, knobs, switches, or the like, capable of receiving input from a user of the tablet 20. In some embodiments, the user interface may be at least partially included on the display 21, e.g., with one or more selectable elements visually displayed or displayable on the display 21.
The tablet 20 may further include one or more audio speakers that may be used to output acquired or conditioned auscultation signals, or audible representations of ECG signals or ultrasound echo signals, blood flow during Doppler ultrasound imaging, or other features derived from operation of the system 10.
Referring to
The probe 40 includes at least one sensor that, in use, acquires physiological data of a patient. In some embodiments, the probe 40 includes an ultrasound sensor 46. In some embodiments, the probe 40 may include one or more electrocardiogram (ECG) sensors and one or more auscultation sensors. For example, U.S. patent application Ser. No. 15/969,632 (now U.S. Pat. No. 10,507,009) and U.S. patent application Ser. No. 16/593,173, assigned to the assignee of the present disclosure and incorporated by reference herein, describe various embodiments of ultrasound probes having one or more of an ultrasound sensor, an auscultation sensor, and an ECG sensor.
As shown in
The ultrasound sensor 46 is configured to transmit an ultrasound signal toward a target structure in a region of interest of a patient, and to receive echo signals returning from the target structure in response to transmission of the ultrasound signal. To that end, the ultrasound sensor 46 may include transducer elements that are capable of transmitting an ultrasound signal and receiving subsequent echo signals. In various embodiments, the transducer elements may be arranged as elements of a phased array. Suitable phased array transducers are known in the art.
The transducer elements of the ultrasound sensor 46 may be arranged as a one-dimensional (1D) array or a two-dimensional (2D) array of transducer elements. The transducer array may include piezoelectric ceramics, such as lead zirconate titanate (PZT), or may be based on microelectromechanical systems (MEMS). For example, in various embodiments, the ultrasound sensor 46 may include piezoelectric micromachined ultrasonic transducers (PMUT), which are microelectromechanical systems (MEMS)-based piezoelectric ultrasonic transducers, or the ultrasound sensor 46 may include capacitive micromachined ultrasound transducers (CMUT) in which the energy transduction is provided due to a change in capacitance.
In some embodiments, the probe 40 includes an integrated electrocardiogram (ECG) sensor 48. The ECG sensor 48 may be any sensor that detects electrical activity, e.g., of a patient's heart, as may be known in the relevant field. For example, the ECG sensor 48 may include any number of electrodes 48a, 48b, 48c, which in operation are placed in contact with a patient's skin and are used to detect electrical changes in the patient that are due to the heart muscle's pattern of depolarizing and repolarizing during each heartbeat.
As shown in
The ECG sensor 48 illustrated in
In some embodiments, the probe 40 further includes one or more auscultation sensors 47a, 47b at or adjacent to the sensor face 42, as described, for example, in U.S. patent application Ser. No. 16/593,173, which is assigned to the assignee of the present disclosure and incorporated by reference herein. The one or more auscultation sensors 47a, 47b may be any sensors operable to detect internal body sounds of a patient, including, for example, body sounds associated with the circulatory, respiratory, and gastrointestinal systems. For example, the auscultation sensors 47a, 47b may be microphones. In some embodiments, the auscultation sensors 47a, 47b may be electronic or digital stethoscopes, and may include or otherwise be electrically coupled to amplification and signal processing circuitry for amplifying and processing sensed signals, as may be known in the relevant field.
Each of the ultrasound sensor 46, the ECG sensor(s) 48, and the auscultation sensor(s) 47 may be positioned at or adjacent to the sensor face 42 of the probe 40. In some embodiments, two or more of the ultrasound sensor 46, the ECG sensor(s) 48, and the auscultation sensor(s) 47 may be positioned on a same plane, e.g., coplanar with one another at the sensor face 42 of the probe 40. In use, the sensor face 42 may be placed in contact with a patient's skin, and the probe 40 may obtain ultrasound, ECG, and auscultation signals via the ultrasound sensor 46, the ECG sensor 48, and the auscultation sensor 47, respectively. The probe 40 may obtain the ultrasound, ECG, and auscultation signals sequentially or simultaneously in any combination.
Clinical data acquired by the probe 40, such as ultrasound signals, ECG signals, auscultation signals, or any other clinical data or signals, may be transmitted to the tablet 20 via the cable 12 and a connector 14. The cable 12 may extend from the probe 40 (e.g., from a proximal end of the probe 40) and terminates at the connector 14.
The connector 14 may be sized and configured to electrically couple the probe 40 to a corresponding probe connector of the tablet 20. For example, the connector 14 may be keyed or otherwise include features which only allow the connector 14 to fit into the probe connector of the tablet 20 if the connector 14 is properly oriented. For example, as shown in
In some embodiments, the connector 14 may include grooves 15 on upper and lower sides of the connector 14, and each of the grooves 15 may be sized to accommodate a corresponding protrusion of the probe connector. The grooves 15 of the connector 14 may ensure proper orientation of the connector 14 when inserted into the probe connector, as the grooves 15 may allow insertion of the connector 14 into the probe connector in only one orientation. Similarly, the grooves 15 of the connector 14 may prevent the connector 14 from being inserted into any conventional electrical connectors, such as a conventional USB-C connector.
In some embodiments, the signals acquired from the auscultation sensor(s) 47, the ECG sensor(s) 48, and the ultrasound sensor 46 may be simultaneously acquired and synchronized with one another. Moreover, in various embodiments, ECG data or ECG signals acquired from any of the various ECG assemblies and ECG leads described herein (e.g., with respect to
The signal acquisition and synchronization techniques described in U.S. patent application Ser. No. 15/969,632 may be modified and implemented in embodiments of the present disclosure for similarly synchronizing the acquired auscultation, ECG, and ultrasound signals, as well as any acquired ambient noise signals, e.g., for noise cancellation. In some embodiments, the acquired auscultation, ECG, and ultrasound signals may be synchronously displayed on the display 21.
The clinical data acquisition system 10 further includes processing circuitry and driving circuitry. In part, the processing circuitry controls the transmission of the ultrasound signal from the ultrasound sensor 46. The driving circuitry is operatively coupled to the ultrasound sensor 46 for driving the transmission of the ultrasound signal, e.g., in response to a control signal received from the processing circuitry. The driving circuitry and processor circuitry may be included in one or both of the probe 40 and the tablet 20. The clinical data acquisition system 10 may further include a power supply that provides power to the driving circuitry for transmission of the ultrasound signal, for example, in a pulsed wave or a continuous wave mode of operation.
As shown in
The auxiliary ECG connector 60 may at least partially extend into an interior space of the probe 40 and may include one or more electrical contacts that are electrically coupled to circuitry within the probe 40, such as processing circuitry or the like for processing ECG signals received through the auxiliary ECG connector 60. The electrical contacts of the auxiliary ECG connector 60 may be exposed and configured to electrically couple an auxiliary ECG assembly having auxiliary ECG leads or electrodes to the circuitry within the probe 40.
In some embodiments, the auxiliary ECG connector 60 may protrude outwardly from the housing 44 of the probe 40. The auxiliary ECG connector 60 may include one or more protrusions or protruding features which facilitate coupling (e.g., magnetic, mechanical, or electrical coupling) between an auxiliary ECG assembly and the probe 40.
ECG voltages measured during routine cardiology examinations are typically on the order of hundreds of microvolts up to several millivolts. Such low voltage ECG signals are generally processed by circuitry such as filter circuitry (e.g., to filter out noise) and amplification circuitry (e.g., to amplify the acquired ECG signal). The ECG sensor 48 including electrodes 48a, 48b, 48c located at or near the sensor face 42 of the probe 40, as shown in
Due to the relative close proximity of the electrodes 48a, 48b, 48c of the ECG sensor 48 at the sensor face 42 of the probe 40, as well as operation of the probe 40 to simultaneously acquire both ECG data and ultrasound data (e.g., ultrasound images), acquisition of high quality ECG data may be challenging in certain circumstances using only the ECG sensor 48. For example, in situations in which an ultrasound gel is used between the sensor face 42 and the skin of the patient during ultrasound imaging, the ultrasound gel (which is typically a water-based gel) may spread across the sensor face 42 of the probe 40 and could potentially “short” the ECG electrodes 48a, 48b, 48c or otherwise reduce the quality of the acquired ECG data or signal.
The use of auxiliary ECG leads, as provided in various embodiments herein, further facilitates ECG data acquisition within a broader or wider anatomical window, as the auxiliary ECG leads may be positioned on dry skin farther apart from one another than the electrodes 48a, 48b, 48c of the ECG sensor 48 at the sensor face 42 of the probe 40.
In various embodiments, the auxiliary ECG assemblies may include any number of ECG electrodes in any desired configuration (e.g., 3 lead, 5 lead, or 12 lead). Transmission of the low voltage ECG signals to the probe 40 may be provided via standard ECG cables or via Bluetooth or similar wireless personal area network (WPAN). This provides a high quality ECG signal while allowing for simultaneous cardiac ultrasound imaging and auscultation signal acquisition.
In various embodiments, the auxiliary ECG assemblies may provide or supplement the ECG heart monitoring capability of the probe 40. In some embodiments, as previously discussed herein, the probe 40 may include ECG electrodes 48a, 48b, 48c, for example, on the sensor face 42 of the probe 40. This allows for simultaneous acquisition of an ECG signal during a diagnostic cardiac imaging session on one integrated device. In some embodiments, however, it may be advantageous for various reasons to include an auxiliary ECG assembly for acquiring ECG signals instead of or in addition to ECG electrodes which may be integrated with the probe 40. For example, in some circumstances, there may be a risk that ECG electrodes on the sensor face 42 of the probe 40 will become electrically short circuited due to the presence of ultrasound gel on the patient which contacts the sensor face 42 of the probe 40. In addition, the anatomical windows for optimal cardiac imaging (e.g., using the probe 40 for cardiac ultrasound imaging) are not necessarily optimal for ECG acquisition. The inclusion of auxiliary ECG assemblies or leads, as provided herein, may therefore reduce or eliminate the possibility of electrical short circuits due to the presence of ultrasound gel and may increase the resolution and fidelity of the ECG signal obtained during such an evaluation.
In various embodiments, the ECG assemblies provided herein may utilize a 3-lead, 5-lead, or any other suitable lead configuration. This may be accomplished with ECG leads and cables (collectively, ECG assemblies) which may be connected to the probe 40 via any suitable connector, which in various embodiments may be, for example, a standard male-female connector, a magnetically coupled connector, an adhesive connector, or a clip-on connector. In some embodiments, the ECG assemblies may be communicatively coupleable to the probe 40 via wireless communication, such as via Bluetooth or other wireless personal area network (WPAN). In some embodiments, in-line electrode pads are provided for communicatively coupling the ECG assemblies to the probe 40.
In some embodiments, magnetic connectors are integrated into the probe 40, which can be coupled to corresponding magnetic connectors of the auxiliary ECG assembly. In some embodiments, ECG assemblies may be of a “snap-on” type and may fit over a distal portion of the probe 40. The snap-on ECG assemblies may electrically insulate the integrated ECG leads of the probe 40 to eliminate shorting. Connectivity to standard ECG electrodes may be made via cables from the snap-on assembly to standard electrode clips.
In some embodiments, the auxiliary ECG assembly or auxiliary ECG leads may be wirelessly coupled to one or both of the probe 40 and the tablet 20. For example, in some embodiments, the auxiliary ECG assembly or auxiliary ECG leads is coupled to one or both of the probe 40 and the tablet 20 through a Bluetooth connection.
Referring now to
The connector 52 of the auxiliary ECG assembly 50 may be selectively coupled to the auxiliary ECG connector 60 of the probe 40. In some embodiments, the connector 52 may be mechanically and electrically coupled to the auxiliary ECG connector 60. For example, in some embodiments, the connector 52 is sized to snap onto or otherwise snuggly fit over the auxiliary ECG connector 60 such that the connector 52 is not easily or inadvertently removed from the auxiliary ECG connector 60. In some embodiments, one or both of the connector 52 of the auxiliary ECG assembly 50 or the auxiliary ECG connector 60 of the probe 40 includes a magnet for magnetically coupling the connector 52 to the auxiliary ECG assembly 50. The connector 52 of the auxiliary ECG assembly 50 is capable of being selectively attached to and detached from the auxiliary ECG connector 60, for example, by manually attaching or detaching the connector 50. The connector 52 may include one or more electrical contacts that correspond to the electrical contacts of the auxiliary ECG connector 60 on the probe 40.
As shown in
The connector 152 and cable 154 of the auxiliary ECG assembly 150 shown in
In some embodiments, the ECG leads 156 may be disposable leads. For example, the ECG leads 156 may be easily connected to corresponding electrical leads or wires extending from the cable 154. After use during an examination of a patient, the ECG leads 156 may be easily disconnected from the electrical leads or wires and may be disposed. In some embodiments, the entire ECG assembly 150 may be disposable, and the ECG assembly 150 may be disconnected from the probe 40 after use and may be disposed.
The connector 252 of the auxiliary ECG assembly 250 of
The probe 240 may be substantially the same as the probe 40 previously described herein, except that the auxiliary ECG connector 260 of the probe 240 may be different as shown in
In some embodiments, the auxiliary ECG assembly 250 may be disposable. For example, after use during an examination of a patient, the auxiliary ECG assembly 250 may be easily disconnected from the probe 240 and may be disposed.
The ECG leads 356 may be the same or substantially the same as the ECG leads 156 shown and described with respect to
The ECG cables 354 are electrically coupled to the wireless transmitter 355. The wireless transmitter 355 includes wireless communication circuitry operable to receive ECG data acquired by the ECG leads 356, and to wirelessly transmit the received ECG data to another device. In some embodiments, the probe 40 of the clinical data acquisition system 10 includes wireless communication circuitry operable to receive the ECG data that is wirelessly transmitted from the wireless transmitter 355.
The wireless transmitter 355 may be configured to communicate utilizing any suitable wireless communications technologies or protocols. In some embodiments, the wireless transmitter 355 is a Bluetooth transmitter configured to communicate ECG data using the Bluetooth standard. In some embodiments, the wireless transmitter 355 may be secured to the patient's skin, for example, using an adhesive or the like.
The ECG cables 354 may include electrical output contacts which may be electrically coupled to corresponding input contacts of the wireless transmitter 355. For example, in some embodiments, the ECG cables 354 may include electrical plugs or jacks that may be plugged into corresponding electrical input ports of the wireless transmitter 355. The ECG cables 354 and ECG leads 356 may be disposable after use, while the wireless transmitter 355 may be retained after use for future uses (e.g., by plugging in a new set of ECG cables 354 and ECG leads 356).
In some embodiments, the features and functionality of the wireless transmitter 355 may be incorporated into one or more of the ECG leads 356. For example, each of the ECG leads 356 may include electrodes that are electrically connected to wireless transmitter circuitry that is embedded within, located on, or otherwise mechanically coupled to the pads 358. Each of the ECG leads 356 may wirelessly communicate with the probe 40, and may wirelessly transmit acquired ECG data to the probe 40. In some embodiments, the ECG cables 354 and separate wireless transmitter 355 may be omitted, and the auxiliary ECG assembly 350 may include only the ECG leads 356 having the wireless transmitter 355 integrated therein.
In some embodiments, the ECG leads 356 may include integrated wireless transmission circuitry, and the ECG leads 356 may communicate with a separate wireless transmitter 355. For example, in such embodiments, the wireless transmitter 355 may act as a communications bridge between the ECG leads 356 and the probe 40. The ECG leads 356 may transmit acquired ECG data to the wireless transmitter 355, and the wireless transmitter 355 may in turn collect and transmit the ECG data to the probe 40. In some embodiments, the wireless transmitter 355 may include processing circuitry for processing (e.g., conditioning, amplifying, filtering, synchronizing, etc.) the acquired ECG data received from the ECG leads 356. The wireless transmitter 355 may thus transmit the processed ECG data to the probe 40.
In some embodiments, the auxiliary ECG assembly 350 may include a single ECG lead 356 having an integrated wireless transmitter 355. The ECG lead 356 may include a pad 358 having a plurality of separate embedded electrodes. The pad 358 may have any shape or size. The embedded electrodes of the pad 358 may be spaced apart from one another by any suitable distance for acquisition of ECG data of the patient. The wireless transmitter 355, which is incorporated in the ECG lead 356 (e.g., embedded or located on the pad 358), may be electrically coupled to each of the spaced apart electrodes of the ECG lead 356. As such, the wireless transmitter 355 may be operable to receive ECG data from the electrodes of the ECG lead 356 and to transmit the ECG data to the probe 40.
In various embodiments, the wireless transmitter 355 or integrated wireless transmitter circuitry included within the ECG leads 356 may be formed on a flexible printed circuit board (PCB). Accordingly, the wireless transmitter 355 or integrated wireless transmitter circuitry may be flexible, thereby providing a more comfortable fit when positioned on and adhesively attached to the patient.
In various embodiments, the ECG leads 356 which include integrated wireless transmitter circuitry may include any suitable power source for supplying electrical circuitry for transmitting the acquired ECG data. In some embodiments, the ECG leads 356 including integrated wireless transmitter circuitry may be battery powered, and the batteries may be rechargeable. In some embodiments, the ECG leads 356 may be recharged by placing the ECG leads 356 into a recharging box or case which has electrical contacts configured to supply a recharging current to the ECG leads 356 when positioned within the box or case.
The wireless auxiliary ECG assembly 450 may be a handheld unit configured to acquire ECG data from the digits of a user, as shown. For example, the wireless auxiliary ECG assembly 450 may include a plurality of electrical contacts 453 on the front and back sides of the wireless auxiliary ECG assembly 450. In use, the user's thumbs may be placed in contact with electrical contacts 453 located at the front side of the wireless auxiliary ECG assembly 450 and one or more of the user's fingers may be placed in contact with electrical contacts 453 located at the back side of the wireless auxiliary ECG assembly 450. The wireless auxiliary ECG assembly 450 may include circuitry within the assembly that acquires ECG data when the user is holding the assembly as shown.
The clinical data acquisition system 410 further includes a probe 440 and a wireless receiver 480. The probe 440 may be the same or substantially the same as any of the probes previously described herein, such as the probe 40. The probe 440 includes a connector 452 that facilitates electrical coupling with the wireless receiver 480. The connector 452 may be any suitable electrical connector, and in some embodiments the connector 452 may be configured to plug into the wireless receiver 480.
The wireless receiver 480 is configured to receive ECG data from the wireless auxiliary ECG assembly 450. The wireless auxiliary ECG assembly 450 and the wireless receiver 480 may include wireless communication circuitry that facilitates wireless communications utilizing any suitable wireless communications technologies or protocols. In some embodiments, the wireless auxiliary ECG assembly 450 and the wireless receiver 480 are configured to communicate ECG data using the Bluetooth standard.
The wireless receiver 480 may further include a display configured to provide a visual representation of the ECG data received from the wireless auxiliary ECG assembly 450, as shown in
As shown in
While
As shown in
The outer shells 658a, 658b may be sized to snuggly fit over a portion of the probe including a corresponding ECG connector 660. For example, ECG connector 660 of the probe may be located near a proximal end of the probe, and the outer shells 658a, 658b may include openings configured to slide over or around the proximal end of the probe and to snuggly fit onto the probe with the electrical contacts 653a, 653b being in contact with or electrically coupled to corresponding electrical contacts of the ECG connector 660.
As shown in
The connector 752 includes a shell 758 sized to fit over and provide a snap fit on the distal end of the probe 40, as shown. The connector 752 may include a plurality of electrical contacts 753, each of which may be configured to contact a corresponding one of the ECG electrodes 48a, 48b, 48c when the connector 752 is connected to the probe 40.
In some embodiments, the electrical contacts 753 extend inwardly from the shell 758 and completely cover the corresponding ECG electrodes 48a, 48b, 48c. In some embodiments, an outer or exposed surface of the electrical contacts 753 is covered with an electrically insulating material, which reduces or prevents occurrence of electrical shorts due to the use of ultrasound gel during examination of a patient. When positioned over the probe 40, the connector 752 may cover only the ECG electrodes 48a, 48b, 48c while other sensors at the sensor faced 42 of the probe 40 (e.g., ultrasound sensor and auscultation sensors) may be left uncovered.
Each of the electrical contacts 753 of the connector 752 may be electrically coupled to a respective ECG input port 759. The ECG input ports 759 are configured to receive a corresponding auxiliary ECG wire or lead which may be plugged directly into the ECG input port 759 and electrically coupled to a corresponding ECG electrode 48a, 48b, 48c. Each of the ECG electrodes 48a, 48b, 48c may be electrically coupled to ECG processing circuitry within the probe 40. During operation, the auxiliary ECG wires or leads may be positioned on a patient (e.g., using adhesive pads as described herein, or any other suitable configuration) and ECG data may be transmitted through the ECG input ports 750 to corresponding ECG electrodes 48a, 48b, 48c, and to ECG processing circuitry within the probe 40.
The mobile clinical viewing device 20 and the probe 40 may be the same or substantially the same as previously described with respect to any of the various embodiments provided herein.
The auxiliary ECG assembly 850 is electrically coupled to portions of the cable 854 between the mobile clinical viewing device 20 and the probe 40. The auxiliary ECG assembly 850 may include a plurality of ECG contacts 853 operable to receive ECG data and transmit the ECG data to one or both of the mobile clinical viewing device 20 and the probe 40.
In some embodiments, one or more ECG leads or wires are configured to be attached and electrically coupled to the ECG contacts 853 on the auxiliary ECG assembly 850. For example, the ECG contacts 853 may be substantially flat electrical contacts or pads, and auxiliary ECG leads or wires may be adhesively and electrically coupled to the ECG contacts 853. The auxiliary ECG leads or wires may include conductive pads or the like that are positioned at desired locations on a patient to acquire ECG data.
In some embodiments, the ECG contacts 853 of the auxiliary ECG assembly 850 may be extended outwardly from a main body of the auxiliary ECG assembly 850, so the ECG contacts 853 may themselves be brought into contact with the patient. For example, the ECG contacts 853 may include electrical or conductive pads that are connected to lengths of electrical wire, and the pads may be extended outwardly from the main body of the auxiliary ECG assembly 850 and positioned as desired on the patient.
The probe 940 may be substantially the same as any of the clinical data acquisition probes previously described herein, except the probe 940 includes an auxiliary ECG electrode connector 952 that is connected to the probe by a cable 954. The ECG electrode connector 952 may include electrical contacts 953 that may be utilized to electrically couple the ECG electrode connector 952 to an auxiliary ECG assembly having electrical leads, pads, or the like that may be attached at desired locations on a patient.
In use, the electrical contacts 953 may receive ECG data acquired by the auxiliary ECG assembly, and may transmit the ECG data to the probe 940 via the cable 954. In some embodiments, the cable 954 may be a continuous electrical cable that extends between the ECG electrode connector 952 and the probe. In other embodiments, the cable 954 may include two or more lengths of electrical cable that may be magnetically coupled together with one or more magnetic connectors 971. The magnetic connectors 971 may physically and electrically couple the separate lengths of electrical cable to one another. The magnetic connectors 971 facilitate easy and convenient detachment of the ECG electrode connector 952 from the probe 940, which may be desirable for examinations using the probe 940 in which ECG data is not needed or in which a longer or shorter electrical cable is appropriate.
The may be mobile clinical viewing device 1020 may be substantially the same as the mobile clinical viewing device 20 previously described herein, except the mobile clinical viewing device 1020 includes an auxiliary ECG electrode connector 1052 that is connected to the mobile clinical viewing device 1020 by a cable 1054. The ECG electrode connector 1052 may be the same or substantially the same as the ECG electrode connector 952 described with respect to
In some embodiments, the cable 1054 may be a continuous electrical cable that extends between the ECG electrode connector 1052 and the mobile clinical viewing device 1020. In other embodiments, the cable 1054 may include two or more lengths of electrical cable that may be magnetically coupled together with one or more magnetic connectors 1071. The magnetic connectors 1071 may physically and electrically couple the separate lengths of electrical cable to one another.
As may be appreciated by persons having ordinary skill in the art, aspects of the various embodiments described above can be combined to provide further embodiments. Aspects of the embodiments can also be modified, if necessary, to employ concepts of various patents, applications and publications in the relevant art to provide yet further embodiments.
These and other changes can be made to the embodiments in light of the above-detailed description. In general, in the following claims, the terms used should not be construed to limit the claims to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled. Accordingly, the claims are not limited by the disclosure.
| Number | Date | Country | |
|---|---|---|---|
| 62854931 | May 2019 | US |
