Physiological monitor with an electrical reference system

Abstract

A pressure monitoring device includes a console having a display monitor and multiple input and output ports. An extension cable includes a distal end having a connector and a proximal end having a joint, the connector being connected to at least one of the multiple input and output ports formed on the console. A sensor mechanism includes a sensor mechanism reference cable for coupling the sensor mechanism to the joint of the extension cable. An electrical reference system includes a reference electrode and a patient reference cable having a proximal end communicatively coupled to the extension cable and a distal end communicatively coupled to the reference electrode. The reference electrode establishes a reference potential of the external environment to electrically balance the pressure monitoring device.

Description

[0001] Cross-reference to related applications

[0002] Applications that identify foreign or domestic priority claims in the application data sheet filed with this application are incorporated herein by reference and form part of this disclosure. Technical Field

[0003] This disclosure relates generally to medical devices, and more particularly to physiological parameter monitors, such as pressure monitors, equipped with an electrical reference system for enhancing measurement accuracy. Background Technology

[0004] Traditional monitors are used to measure physiological parameters within the body. However, these devices can be susceptible to electrical interference from the external environment, which can lead to inaccurate readings. In some cases, these inaccurate readings can affect medical decisions. Therefore, there is a need for a monitoring device that can minimize and / or eliminate electrical interference from the external environment to ensure more accurate readings. Attached Figure Description

[0005] The embodiments illustrated in the accompanying drawings are illustrative and exemplary in nature and are not intended to limit the subject matter as defined by the claims. The following detailed description of the illustrative embodiments will be understood when read in conjunction with the following drawings, wherein similar structures are indicated by similar reference numerals, and wherein:

[0006] Figure 1 A schematic diagram of a pressure monitoring device is depicted in any of the one or more embodiments shown and described herein;

[0007] Figure 2 The embodiments shown and described herein are depicted in any of the one or more embodiments. Figure 1 A schematic diagram of the electrical reference system of the pressure monitoring device;

[0008] Figure 3 The embodiments shown and described herein are depicted in any of the one or more embodiments. Figure 1 A schematic diagram of another embodiment of the electrical reference system of the pressure monitoring device;

[0009] Figure 4 The embodiments shown and described herein are depicted in any of the one or more embodiments. Figure 1 A schematic diagram of another embodiment of the electrical reference system of the pressure monitoring device;

[0010] Figure 5 The image depicts a configuration in the target area as shown or described herein in one or more embodiments. Figure 1A schematic diagram of another embodiment of the electrical reference system of the pressure monitoring device;

[0011] Figure 6 The embodiments shown and described herein are depicted in any of the one or more embodiments. Figure 5 A schematic diagram of the sensor in the electrical reference system;

[0012] Figure 7 An illustrative method for performing stress monitoring is described in any of the one or more embodiments shown and described herein. Detailed Implementation

[0013] The embodiments disclosed herein relate to pressure monitoring devices and electrical reference systems for pressure monitoring devices. More specifically, this disclosure relates to a pressure monitoring device including a sensing mechanism, a display monitor, an extension cable electrically coupled to the sensing mechanism and the display monitor, and an electrical reference system. In these embodiments, the electrical reference system may include a patient reference cable electrically coupled and / or communicatively coupled to the extension cable, and a reference electrode electrically coupled and / or communicatively coupled to the patient reference cable. The reference electrode of the electrical reference system may reference the potential of the environment of the sensing mechanism relative to the lowest potential of the sensor mechanism in order to balance any bias voltage, thereby providing more accurate sensor measurements.

[0014] In other embodiments, the electrical reference system may be embedded within the sensing mechanism to minimize connectivity within the monitoring device. For example, in these embodiments, the electrical reference system may include a reference electrode integrated into the sensing mechanism, which can effectively minimize the distance (and potential interference) between the sensing mechanism and the electrical reference system.

[0015] As described herein, an intracranial pressure (“ICP”) monitor is a device used to measure pressure within the skull. This pressure can increase due to various medical conditions, such as traumatic brain injury, hydrocephalus, tumors, and other types of brain-related conditions. In some cases, elevated ICP can be harmful because the increased pressure within the skull can cause brain tissue to be compressed, thereby reducing blood flow to the brain. The ICP monitoring device described herein can help mitigate the risks associated with elevated ICP by continuously monitoring and displaying ICP to healthcare professionals, enabling timely action if ICP levels rise to and / or remain at levels requiring medical intervention.

[0016] In operation, traditional ICP monitoring devices may include sensors implanted in the brain and connected (e.g., via wires or any other similar communication coupling) to an external monitor to display ICP readings used to guide patient treatment. However, sensors used in many ICP monitoring devices are inherently susceptible to ambient noise (or any other voltage or potential difference between the sensor and the environment), which can affect the accuracy of sensor readings. In some cases, such electrical interference from the external environment may cause incorrect pressure readings to be monitored and displayed in some ICP monitoring devices, potentially impacting patient treatment plans.

[0017] To minimize inaccurate readings, the disclosed ICP monitoring device utilizes an electrical reference connection between the monitoring system and the patient to balance the potential exposed to the sensor mechanism. For example, it should be recognized that any environment has an inherent potential that can be influenced by nearby electrical installations, electromagnetic fields, and / or physiological processes within the body. By balancing the potential within the sensor with the external environment (i.e., the patient), the ICP monitoring device is provided with a consistent reference for measuring ICP. Therefore, the electrical environment in which the sensor operates is considered common-mode (i.e., the same all around), and thus does not affect the performance of the device.

[0018] Embodiments of the pressure monitoring device and electrical reference system will now be described in more detail herein. These devices and systems will be described below with reference to the accompanying drawings, wherein the same numbers denote the same structures.

[0019] Now refer to Figure 1 A schematic diagram of a pressure monitoring device 10 (such as an ICP monitoring device) is depicted. The ICP monitoring device 10 may include a console 100 having a monitor 110 (such as a display monitor) for visually and / or audibly displaying ICP readings, multiple input and output ports 120 for coupling a sensor mechanism 130 (such as an ICP sensor), and an electrical reference system 150 to the console 100, as will be described in detail elsewhere herein. In these embodiments, the ICP monitoring device 10 may further include at least one extension cable 140, which may be used to electrically couple and / or communicatively couple the sensor mechanism 130 and the electrical reference system 150 to the multiple input and output ports 120 of the console 100.

[0020] although Figure 1The ICP monitoring device 10 depicted is shown as including multiple input and output ports 120 and at least one extension cable 140; however, it should be recognized that in some embodiments, the sensor mechanism 130 may be wirelessly coupled to the console 100. For example, in these embodiments, the sensor mechanism 130 may be coupled to the console using telemetry (e.g., a transmitter in the sensor mechanism 130 providing data transmission to a receiver in the positioning console 100), Bluetooth, Wi-Fi, or any other similar wireless coupling. It should be noted that in embodiments where the sensor mechanism 130 is wirelessly coupled to the console 100, the console 100 may further include mechanisms for ensuring synchronization of the sensor mechanism 130, ensuring that delays and / or misalignments in data transmission do not affect the accuracy of the ICP readings obtained by the ICP monitoring device 10.

[0021] In the embodiments described herein, the ICP monitoring device 10 may further include a power source (not shown) for powering the ICP monitoring device 10. For example, in some embodiments, the ICP monitoring device 10 may include a battery-powered power source that allows the ICP monitoring device 10 to be used during patient transport (e.g., in an ambulance or otherwise). In other embodiments, the power source may include an external power source configured to be powered via a standard wall outlet or any other similar power source.

[0022] Still refer to Figure 1 The extension cable 140 may include a distal end 142 and a proximal end 146. The distal end 142 has a connector 144 for coupling to the console 100, and the proximal end 146 includes a connector 148 for coupling to the sensor mechanism 130 and / or the electrical reference system 150. In these embodiments, the extension cable 140 may be formed of copper, tin-plated copper, silver or silver-plated copper, gold or gold-plated copper, or any other material capable of efficiently transmitting signals from the sensor mechanism 130 and / or the electrical reference system 150 to the console 100. Furthermore, the extension cable 140 may be insulated with polyethylene, polytetrafluoroethylene (PTFE), silicone, Santoprene, or any other similar elastomer with sufficient flexibility and biocompatibility.

[0023] like Figure 1As further described herein, sensor mechanism 130 can be coupled to extension cable 140 via sensor mechanism reference cable 132. In these embodiments, sensor mechanism reference cable 132 may include a proximal end 134 and a distal end 136, the proximal end 134 being integrated into and / or coupled to sensor mechanism 130, and the distal end 136 having an adapter 138 for coupling sensor mechanism 130 to extension cable 140. It should be appreciated that, in the embodiments described herein, adapter 138 can be any adapter capable of facilitating the transmission of ICP signals from sensor mechanism 130 to console 100.

[0024] It should be further noted that the sensor mechanism 130 can be any sensor capable of accurately recording ICP values ​​and relaying them to the console 100 in real time. For example, in the embodiments described herein, the sensor mechanism 130 may include a strain gauge transducer (e.g., a microtransducer), a piezoelectric sensor, a capacitive sensor, or any other similar sensor mechanism. In these embodiments, it should be recognized that the sensor mechanism 130 used in the ICP monitoring device 10 depends on various factors, including accuracy, sensitivity, size constraints, and the environment in which the ICP monitoring device 10 is used (e.g., an operating room, MRI, etc.).

[0025] Now refer to Figures 1 to 4 An embodiment of the electrical reference system 150 is described herein. As discussed herein, it should be appreciated that the electrical reference system 150 is configured to provide a stable and / or known reference point against which other electrical measurements (e.g., ICP readings) can be compared.

[0026] like Figures 1 to 4 As shown, the electrical reference system 150 may include a patient reference cable 152 having a proximal end 154 electrically and / or communicatively coupled to an extension cable 140 and a distal end 156 coupled to a reference electrode 160. For example, as... Figure 1 and Figure 2As shown, the proximal end 154 of the patient reference cable 152 may be integrally formed with the connector 148 of the extension cable 140, while the distal end 156 includes an electrode connector 158 configured to couple (e.g., releasably or otherwise) the patient reference cable 152 to a reference electrode 160. In these embodiments, the patient reference cable 152 may be a standard electrocardiogram (“ECG”) cable, such as tinned copper wire with a Santoprene insulation coating, and may be integrally formed and / or fixedly coupled to the connector 148 of the extension cable 140, such as by brazing, soldering, overmolding, or any other similar method. By fixedly coupling the proximal end 154 of the patient reference cable 152 to the connector 148 of the extension cable 140, the physical integrity and reliability of the connection between the patient reference cable 152 and the extension cable 140 can be ensured.

[0027] While the patient reference cable 152 may be integrally formed with the connector 148 of the extension cable 140, in some embodiments, the extension cable 140 may further include a Y-connector 141, such as an electrical Y-connector, for coupling the patient reference cable 152 to the extension cable 140. For example, as Figure 3 and Figure 4 As shown, the Y-connector 141 may include a first port 141a configured for connection to the sensor assembly 130 and a second port 141b configured for connection to the patient reference cable 152. In these embodiments, the patient reference cable 152 may be integrally formed with and / or electrically coupled and / or communicatively coupled to the second port 141b. In these embodiments, the proximal end 154 of the patient reference cable 152 may be overmolded to the second port 141b of the Y-connector 141 to ensure the physical integrity and reliability of the connection, as described herein.

[0028] Although the patient reference cable 152 is shown as a standard ECG cable, it should be recognized that in the embodiments described herein, the patient reference cable 152 may include any cable and / or material capable of transmitting electrical signals obtained from the reference electrode 160 to the console 100.

[0029] Refer again Figures 1 to 4 The reference electrode 160 can be coupled to the distal end 156 of the patient reference cable 152, so that the electrical signal obtained by the reference electrode 160 can be transmitted to the console 100 through the patient reference cable. For example, as Figure 2 and Figure 3As shown, the reference electrode 160 can be integrally formed with the distal end 156 of the patient reference cable 152. In these embodiments, the distal end 156 of the patient reference cable 152 may include an overmolded portion 157, which may be at least partially disposed around the reference electrode 160 and ensure reliable electrical coupling between the reference electrode 160 and the patient reference cable 152. Furthermore, in the embodiments described herein, the reference electrode 160 may be a skin patch electrode or any other similar electrode that can be adhesively or otherwise removably attached to a patient to establish a patient potential, as will be described in further detail herein.

[0030] In other embodiments, the distal end 156 of the patient reference cable 152 may include a coupler 159, such as a clip, clamp, or other similar releasable coupler, configured to connect to a receiver 163 formed on the reference electrode 160. For example, as Figure 1 and Figure 4 As shown, the coupler 159 can be attached to the receiver 163 of the reference electrode 160 to establish an electrical connection between the reference electrode 160 and the patient reference cable 152.

[0031] Now refer to Figures 1 to 6 The operation of the ICP monitoring device 10 is described in detail. In the embodiments described herein, an operator can perform the ICP monitoring process by connecting various components of the ICP monitoring device 10 to the console 100. For example, an extension cable 140 can be coupled to the electrical reference system 150 and the sensor mechanism 130, as well as the console 100, through multiple input and output ports 120. With the extension cable 140 paired with the console 100, a reference electrode 160 can be adhered to the patient, and a patient reference cable 152 can be secured to the reference electrode 160.

[0032] Once the reference electrode 160 is attached to the patient, it can monitor the patient's potential, which can be used as a reference potential when monitoring ICP readings in a target area (e.g., the brain). The implementation of the reference potential balances the environment in which the sensor operates, thereby disregarding potential biases from the external environment. More specifically, in the embodiments described herein, the reference potential can be used to convert AC noise and DC offset voltage biases into a common-mode signal, which can result in more accurate readings.

[0033] It should be further noted that the removal of the DC offset bias can further help prevent ion migration within the implanted sensor. As provided herein, ion migration can refer to the movement of charged particles (e.g., ions) across a medium due to a potential difference. In these embodiments, the presence of a DC voltage bias can drive electrolytes from the patient's brain toward the sensor mechanism 130. This migration can interfere with the sensing mechanism and lead to inaccurate readings.

[0034] Using a reference potential established via reference electrode 160, sensor mechanism 130 can be positioned within a target area, enabling it to monitor the ICP level within that area. The ICP level monitored by sensor mechanism 130 can be relayed as an electrical signal from sensor mechanism 130 to console 100 via extension cable 140, wherein console 100 is configured to convert the electrical signal from sensor mechanism 130 into a graphical, visual, and / or audible display provided on monitor 110 of console 100. For example, the electrical signal representing the ICP reading obtained by sensor mechanism 130 can be displayed on monitor 110 as a histogram or other graphical representation.

[0035] Still refer to Figures 1 to 4 The console 100 can be configured to ensure that the ICP level within a target area remains within a predetermined range, which can be programmed into the console 100 or established via user input on the console 100. In these embodiments, the console 100 may include multiple alarms configured to indicate to the user when the ICP level falls outside the predetermined range. For example, multiple alarms may provide auditory and / or visual feedback to indicate to the user that the ICP level is outside the predetermined range. Thus, if the ICP level exceeds a predetermined upper threshold or falls below a predetermined lower threshold, the console 100 may trigger at least one of the multiple alarms to provide a warning to the user.

[0036] In some embodiments, console 100 may also be configured to trigger at least one of a plurality of alarms when the monitored ICP level remains outside a predetermined range for a predetermined time period. For example, in these embodiments, when the ICP level monitored by sensor mechanism 130 falls outside the predetermined range, console 100 may not immediately trigger at least one of the plurality of alarms. Instead, console 100 may further track the amount of time the ICP level remains outside the predetermined range, such that at least one of the plurality of alarms is triggered only when the ICP level remains outside the predetermined range for a period exceeding the predetermined time period.

[0037] Still refer to Figures 1 to 4 In the embodiments described herein, console 100 may further include multiple memory and data components (not shown) configured to store and / or retain ICP data captured by sensor mechanism 130. In these embodiments, the memory and data components may allow technicians or other users to monitor certain trends in the ICP data, which may be beneficial in developing treatment strategies for specific patients.

[0038] Now go to Figure 5 and Figure 6Another embodiment of an electrical reference system 150 for use in conjunction with an ICP monitoring device 10 is disclosed. In these embodiments, the reference electrode 160 of the electrical reference system 150 can be directly disposed on the sensor assembly 130. For example, as Figure 5 and Figure 6 As depicted, the reference electrode 160 may be an electrode ring that can be embedded or otherwise integrated into the sensor mechanism 130. Although the reference electrode 160 is depicted as an electrode ring, it should be understood that the reference electrode 160 may take any shape, such as a strip disposed on one side of the sensor mechanism 130, without departing from the scope of this disclosure.

[0039] like Figure 6 As most clearly depicted, the reference electrode 160 may be disposed around a first end 131 of the sensor mechanism (e.g., one end of the sensor mechanism 130 adjacent to the distal end 136 of the sensor mechanism reference cable 132), such that electrical and / or communication coupling can be formed between the reference electrode 160 and the sensor mechanism reference cable 132. Although the reference electrode 160 is depicted as disposed around the first end 131 of the sensor mechanism 130 (e.g., embedded or otherwise), it should be appreciated that the reference electrode 160 may be disposed on any part of the sensor mechanism 130 without departing from the scope of this disclosure.

[0040] In the embodiments described herein, once the sensor mechanism 130 (and consequently the reference electrode 160) contacts tissue located in a target region (e.g., the brain), the reference electrode 160 can identify the patient's electrical potential, providing an immediate and direct reference to the patient's electrical environment. As described in detail herein, using the patient's electrical potential as a reference point eliminates the potential offset bias that would exist in the absence of a reference between the patient and the sensor mechanism 130 and the monitoring device 100. Furthermore, it should be appreciated that the proximity of the reference electrode 160 to the sensor mechanism 130 can further help minimize potential biases that could interfere with the sensor mechanism 130.

[0041] Now refer to Figure 7 An exemplary method 700 for performing pressure monitoring is described. In these embodiments, method 700 first involves coupling a sensor assembly and an electrical reference system to a console of an ICP monitoring device using an extension cable, as shown at block 710. In some embodiments, the extension cable may further include a Y-connector having a first port for coupling the extension cable to the sensor assembly and a second port for coupling the extension cable to the electrical reference system. In other embodiments, the sensor assembly and / or electrical reference system may be integrated (e.g., overmolded or otherwise) into the extension cable, as already described herein.

[0042] With the sensor mechanism and electrical reference system communicatively coupled to the console, the method can proceed to block 720, which may involve establishing a reference potential using the electrical reference system. In these embodiments, establishing the reference potential may involve adhering (or otherwise securing) a reference catheter to an external environment, such as a patient's skin. Once the reference potential is established, the sensor mechanism can be inserted into a target area, such as a patient's brain, to monitor pressure relative to the reference potential, as shown at block 730.

[0043] As should be understood in light of the foregoing, this document discloses a pressure monitoring device. The ICP monitoring device may include a sensor mechanism communicatively coupled to a monitoring display on the device's control console via an extension cable. The ICP monitoring device may also include an electrical reference system having a reference electrode and a patient reference cable, the patient reference cable extending between the reference electrode and the extension cable and communicatively coupling the reference electrode to the extension cable, and subsequently to the monitoring display on the control console. In the embodiments described herein, the reference electrode may be attached to the patient such that the reference electrode can utilize the patient's electrical potential as a reference point. As described herein, utilizing the patient's electrical potential as a reference point effectively balances the ICP monitoring device with the patient, thereby eliminating potential bias from external electrical interference.

[0044] In addition to the ICP monitoring device shown herein, the embodiments shown and described herein can be applied to monitoring devices for other patient physiological parameters such as oxygen saturation in the brain or other tissues, temperature in the brain or other tissues or organs, heart rate, flow rate through an implantable valve, fluid pressure in an implantable device, blood pressure, cerebral perfusion pressure, pressure responsiveness index, pressure-volume compensatory reserve index, and gastric pH. The electrical reference system described herein can be applied to various sensors that measure a variety of physiological parameters, including but not limited to pressure, and can be used with various types of pressure sensors that measure different physiological locations within the patient's body.

[0045] The terminology used herein is for descriptive purposes only and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms, including “at least one,” unless the content expressly indicates otherwise. “Or” means “and / or.” As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. It will be further understood that, when used in this specification, the terms “comprising” and / or “including” specify the presence of the stated features, areas, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, areas, integers, steps, operations, elements, components, and / or groups thereof. The term “or a combination thereof” means a combination including at least one of the foregoing elements.

[0046] It should be noted that the terms “substantially” and “about” may be used herein to indicate the inherent uncertainty attributable to any quantitative comparison, value, measurement, or other representation. These terms are also used herein to indicate the extent to which a quantitative representation may differ from the stated reference without altering the fundamental function of the subject matter under discussion.

[0047] While specific embodiments have been shown and described herein, it should be understood that various other changes and modifications may be made without departing from the spirit and scope of the claimed subject matter. Furthermore, although various aspects of the claimed subject matter have been described herein, these aspects need not be used in combination. Therefore, the appended claims are intended to cover all such changes and modifications within the scope of the claimed subject matter.

Claims

1. A pressure monitoring device, comprising: The console includes a display monitor and multiple input and output ports; An extension cable, the extension cable including a distal end having a connector and a proximal end having a joint, the connector being connected to at least one of the plurality of input and output ports formed on the console; A sensor mechanism, the sensor mechanism including a sensor mechanism reference cable, the sensor mechanism reference cable being used to couple the sensor mechanism to a connector of the extension cable; as well as An electrical reference system, the electrical reference system comprising: Reference electrode; and A patient reference cable having a proximal end communicatively coupled to the extension cable and a distal end communicatively coupled to the reference electrode; The reference electrode is configured to establish a reference potential for the external environment so as to achieve electrical balance of the pressure monitoring device.

2. The pressure monitoring device according to claim 1, further comprising a battery-powered power source.

3. The pressure monitoring device according to any one of claims 1 or 2, wherein, The distal end of the sensor mechanism reference cable includes an adapter for coupling the sensor mechanism to the extension cable.

4. The pressure monitoring device according to any one of claims 1 to 3, wherein, The sensor mechanism is configured to monitor pressure readings in the target area.

5. The pressure monitoring device according to any one of claims 1 to 4, wherein, The proximal end of the patient reference cable is overmolded into the connector of the extension cable.

6. The pressure monitoring device according to any one of claims 1 to 5, wherein, The extension cable further includes a Y-connector having a first port and a second port, the first port being configured to receive the sensor mechanism reference cable and the second port being configured to receive the proximal end of the patient reference cable.

7. The pressure monitoring device according to any one of claims 1 to 6, wherein, The patient reference cable is a tinned copper wire cable with a Santoprene insulation coating.

8. The pressure monitoring device according to any one of claims 1 to 7, wherein, The reference electrode is integrally formed with the distal end of the patient reference cable.

9. The pressure monitoring device according to any one of claims 1 to 8, wherein, The distal end of the patient reference cable includes an overmolded portion that is at least partially disposed around the reference electrode.

10. The pressure monitoring device according to any one of claims 1 to 9, wherein, The distal end of the patient reference cable includes a coupler configured to connect to a receiver formed on the reference electrode.

11. The pressure monitoring device according to any one of claims 1 to 10, wherein, The reference electrode is a skin patch electrode.

12. The pressure monitoring device according to any one of claims 1 to 11, further comprising a plurality of alarms, said plurality of alarms being triggered when the pressure value monitored by said sensor mechanism falls outside a predetermined range.

13. The pressure monitoring device according to any one of claims 1 to 12, further comprising a plurality of alarms, said plurality of alarms being triggered when a pressure value monitored by said sensor mechanism falls outside a predetermined range and remains outside said predetermined range for a predetermined time period.

14. The pressure monitoring device according to any one of claims 1 to 13, further comprising a plurality of memory components configured to store data captured by the sensor mechanism.

15. A pressure monitoring device, comprising: The console includes a display monitor and multiple input and output ports; An extension cable, the extension cable including a distal end having a connector and a proximal end having a joint, the connector being connected to at least one of the plurality of input and output ports formed on the console; A sensor mechanism, the sensor mechanism including a sensor mechanism reference cable, the sensor mechanism reference cable being used to couple the sensor mechanism to a connector of the extension cable; as well as An electrical reference system, the electrical reference system including a reference electrode disposed on the sensor mechanism; The reference electrode is configured to establish a reference potential for the external environment to achieve electrical balance of the pressure monitoring device.

16. The pressure monitoring device according to claim 15, wherein, The reference electrode is an electrode ring.

17. The pressure monitoring device according to any one of claims 15 or 16, wherein, The reference electrode is embedded in the first end of the sensor mechanism adjacent to the distal end of the reference cable of the sensor mechanism.

18. The pressure monitoring device according to any one of claims 15 to 17, wherein, The reference electrode is communicatively coupled to the reference cable of the sensor mechanism.

19. A method for monitoring pressure, comprising: Use an extension cable to couple the sensor assembly and electrical reference system to the control console of the pressure monitoring device; The reference potential of the external environment is established using the aforementioned electrical reference system; The pressure monitoring device is grounded using the reference potential; as well as Insert the sensor mechanism into the target area; The sensor mechanism is used to monitor the pressure relative to the reference potential.

20. The method according to claim 19, wherein, Establishing the reference potential further includes attaching the reference electrode of the electrical reference system to the external environment.

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