Basal body thermometer with detached temperature sensor probe

The detachable sensor probe design with a flexible cord and retraction mechanism addresses user discomfort and signal degradation in basal thermometers, ensuring accurate and rapid temperature readings.

WO2026147799A1PCT designated stage Publication Date: 2026-07-09EASY HEALTHCARE CORP

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
EASY HEALTHCARE CORP
Filing Date
2025-12-23
Publication Date
2026-07-09

AI Technical Summary

Technical Problem

Current digital basal thermometers are bulky and inconvenient for daily use, requiring users to hold them in place during measurement, which can affect accuracy due to physical activity and make it impossible to read the display, and they suffer from signal degradation and slower readings due to extended connector wires.

Method used

A basal thermometer with a detachable temperature sensor probe connected by a flexible cord, featuring a retraction mechanism, highly conductive wires, and individual calibration to minimize signal loss and ensure accurate, rapid readings.

Benefits of technology

Enables comfortable and accurate basal body temperature measurement without handholding, maintaining reading time and precision, and facilitating easy display viewing during use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present disclosure provides a basal temperature thermometer wherein a temperature sensor is separated from a housing by a flexible and extended cord and at the distal end of the flexible cord. The present disclosure also provides methods of using the basal temperature sensor.
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Description

BASAL BODY THERMOMETER WITH DETACHED TEMPERATURE SENSOR PROBECROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to U.S. Provisional Application Serial No. 63 / 741,559, filed January 3, 2025, which is incorporated by reference herein in its entirety for all purposes.TECHNICAL FIELD

[0002] The present application relates to a basal thermometer used to measure basal body temperature (BBT), which can measure to l / 100thof a degree, to detect minor temperature variations, wherein a temperature sensor is separated from the main housing of the thermometer but connected to the housing by a flexible cord.BACKGROUND

[0003] Presented below is background information on certain aspects of the present disclosure as they may relate to technical features referred to in the detailed description, but not necessarily described in detail. That is, certain components of the present disclosure may be described in greater detail in the materials discussed below. The discussion below should not be construed as an admission as to the relevance of the information to the claims or the prior art effect of the material described.

[0004] A basal thermometer is a highly sensitive thermometer used to measure basal body temperature (BBT), which is the lowest body temperature recorded after a period of rest, typically upon waking up. before getting out of bed or engaging in any activity. The basal thermometer can measure to 17100thof a degree (e.g., 36.78°C), to detect minor temperature variations. Nonetheless, to achieve the higher precision of measurement, it requires a longer measurement time, typically ranging from one minute to several minutes.

[0005] A woman’s BBT typically rises by 0.5 to 1°F (about 0.3 to 0.6°C) after ovulation due to the release of the hormone progesterone. The BBT typically remains elevated until the start of the next menstrual cycle. As such, the days leading up to a4926-6487-9884 v.lAttorney Ref.: 61807.8W001woman’s BBT spike are considered her most fertile time. By using the basal thermometer to track slight changes in BBT over time, a woman can thus predict her most fertile window and better time of intercourse for conception or contraception. BBT charting can also provide insights into other reproductive health conditions, such as hormonal imbalances, thyroid issues, or early indicator of pregnancy.

[0006] Most current digital basal thermometers on the market are in the form of a one-piece design: the sensor (commonly referred to as the “probe”) is at the tip of the main body of the thermometer, opposite from where the display, the control buttons, the battery, and the grip are located.

[0007] As discussed above, users must take the BBT measurement first thing in the morning upon waking up while still lying in bed. For an oral basal thermometer, the user will need to place it under the tongue and keep it in place for a minute or longer while lying in bed until hearing a signal indicating the reading is complete. Since the thermometer is too heavy to be held in place by just keeping the tongue down, a user generally needs to hold the thermometer in the hand to prevent it from moving. This not only creates discomfort for the user and, more importantly, increases the chance for physical activity, which can increase the body temperature and affect the accuracy of reading.

[0008] Also, during the measurement, if the user wants to see the reading changes by using the current one-piece design thermometer, it is physically impossible to do so while the thermometer is still in the mouth.

[0009] Given that BBT charting requires a prolonged period of diligent measurements to establish a reliable pattern, its accuracy and effectiveness is heavily dependent on the user’s consistency, attention to detail, and ability to take readings daily under similar conditions. The designs of basal thermometers currently on the market are bulky and inconvenient for daily use, hence difficult to achieve the accuracy required for effective BBT charting.

[0010] The present disclosure solves the above technical problems.Attorney Ref.: 61807.8W001SUMMARY

[0011] This Summary is provided to introduce a selection of concepts in simplified form that are further described below in the Detailed Description. This Summary is not intended to include all features and aspects of the present disclosure, nor does it imply that the disclosure must include all features and aspects discussed in this Summary.

[0012] All features of exemplary embodiments which are described in this disclosure and are not mutually exclusive can be combined with one another. Elements of one embodiment can be utilized in the other embodiments without further mention. Other aspects and features of the present invention will become apparent to those ordinarily skilled in the art upon review of the following description of specific embodiments in conjunction with the accompanying Figures.

[0013] As described herein, an aspect of the present disclosure relates to a basal temperature thermometer (BTT) that includes a temperature sensor capable of detecting basal body temperature (BBT) within a hundredth of a degree, wherein the temperature sensor is at a distal end of a flexible and extended cord which is separated from but connected to a housing that includes other components of the thermometer.

[0014] In an aspect of the present disclosure, the BTT includes a retraction mechanism that allows at least a portion of the flexible cord to retract from an extended position to be stored around or within the housing.

[0015] Another aspect of the present disclosure is a method of detecting basal temperature using the BTT.

[0016] The present disclosure also provides a method for tracking ovulation using the BTT.

[0017] The present disclosure also provides a method for storing the flexible cord that includes the temperature sensor of the BTT.

[0018] Thus, the present disclosure comprises, in certain aspects, a BTT wherein the retraction mechanism for retracting at least a portion of the flexible and extended cordAttorney Ref.: 61807.8W001and temperature sensor for storage is interposed between an upper housing and a lower housing. In other aspects, the upper and lower housings are integrally formed with the retraction mechanism and / or other components inside the complete housing.

[0019] The disclosure further provides a method for reducing signal loss or degradation on the connector wire between the temperature sensor at the distal end of the flexible cord and a motherboard in the housing of the BTT. Also, this method will also improve the reading time and avoid the slower or delayed reading time because of extended flexible connector wire / cord.

[0020] Another aspect of the disclosure is a BTT in which the flexible cord connecting to the temperature sensor at the distal end includes one or more highly conductive wires for transmitting an electrical signal from the temperature sensor to a motherboard in the housing.

[0021] Yet a further aspect of the disclosure is a BTT in which the flexible and extended cord containing one or more highly conductive wires is insulated with a medical-grade material that is flexible and extensible.

[0022] The foregoing and other embodiments, features and advantages of the disclosure will be apparent from the following detailed description, as illustrated in the accompanying drawings in which like reference characters refer to the same parts throughout the different views. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the disclosure.BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG. 1 shows a digital basal thermometer that includes a housing and a flexible and extended cord with a temperature sensor at the distal end of the flexible cord.

[0024] FIG. 2 shows the digital basal thermometer of FIG. 1 with the flexible cord wrapped around the housing for storage.

[0025] FIG. 3 shows a digital basal thermometer with a retraction mechanism wherein the flexible cord comprising the temperature sensor probe is in the retracted position.Attorney Ref.; 61807.8W001

[0026] FIG. 4 shows the retraction button on a digital basal thermometer with a retraction mechanism wherein the flexible cord comprising the temperature sensor probe is in the retracted position.

[0027] FIG. 5 shows a digital basal thermometer with a retraction mechanism wherein the flexible cord comprising the temperature sensor probe is in the extended position.

[0028] FIG. 6 shows details of a retraction mechanism within the housing of a digital basal thermometer, wherein the flexible cord comprising the temperature sensor probe is in the retracted position.

[0029] FIG. 7 shows details of a retraction mechanism within the housing of a digital basal thermometer, wherein the flexible cord comprising the temperature sensor probe is in the extended position.

[0030] FIG. 8 shows details of a temperature sensor such as a thermistor in a probe tip of the flexible cable of a digital basal thermometer. In this case, the sensor is in direct contact with the thermowell of the probe, which is a steel cap.

[0031] FIG. 9 shows an expanded view of the details of a retraction mechanism within the housing of a digital basal thermometer, wherein the flexible cord comprising the temperature sensor probe is in the retracted position. (1) LCD Display; (2) Power Switch; (3) Upper Housing; (4) Motherboard; (5) Holding Part; (6) Clockwork Feed; (7) Spring; (8) Rotatable Component; (9) Temperature Probe including the flexible cord and probe tip: (10) Retraction Button; (11) Lower Housing.

[0032] FIG. 10 shows details of steps or detents in a retraction mechanism within the housing of a digital basal thermometer to control the gradual retract or retract speed.DETAILED DESCRIPTION

[0033] A detailed description of one or more embodiments of the invention is provided below along with accompanying figures that illustrate the principles of the invention. The invention is described in connection with such embodiments, but the invention is not limited to any embodiment. The scope of the invention is limited only by the claims.Attorney Ref.: 61807.8W001Numerous specific details are set forth in the following description in order to provide a thorough understanding of the invention. These details are provided for the purpose of non-limiting embodiments, and the invention may be practiced according to the claims without some or all of these specific details. For the purpose of clarity, technical material that is known in the technical fields related to the invention has not been described in detail so that the invention is not unnecessarily obscured.

[0034] Overview of Disclosure

[0035] The present disclosure relates to a basal temperature thermometer in which the temperature sensor portion is separated from the main housing of the thermometer by a flexible and extended long cord that connects a temperature sensor at the distal end of the flexible cord to a motherboard in the housing. The disclosure also relates to methods of using the basal temperature thermometer, to methods of reducing signal loss from the temperature sensor to the motherboard in the basal temperature thermometer, and to methods of improving the reading time and avoiding the slower or delayed response time because of the extended flexible connector wire / cord.Definitions and Interpretations

[0036] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this disclosure belongs. Although any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present disclosure, some preferred methods and materials are described. For purposes of the clarity, following terms are defined below.

[0037] Other embodiments of implementations will become apparent to the person skilled in the art in view of the teachings of the present description and as such, will not be further described here.

[0038] Note that titles or subtitles may be used throughout the present disclosure for the convenience of the reader, but in no way should these limit the scope of the invention. Moreover, certain theories may be proposed and disclosed herein; however, in no wayAttorney Ref.: 61807.8W001should they, whether they are right or wrong, limit the scope of the invention so long as the invention is practiced according to the present disclosure without regard for any particular theory or scheme of action.

[0039] Any and all references cited throughout the specification are hereby incorporated by reference in their entirety for all purposes.

[0040] It will be understood by those of skill in the art that throughout the present specification, the term "a" used before a term encompasses embodiments containing one or more of what the term refers to. It will also be understood by those of skill in the art that throughout the present specification, the term "comprising", which is synonymous with "including," "containing," or "characterized by," is inclusive or open-ended and does not exclude additional, un-recited elements or method steps.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. In the case of conflict, the present document, including definitions, will control.

[0042] As used in the present disclosure, the terms "around", "about" or "approximately" shall generally mean within the error margin generally accepted in the art, for example + / - 10%. Hence, numerical quantities given herein generally include such error margin such that the terms "around", "about" or "approximately" can be inferred if not expressly stated.

[0043] Detailed Description of Aspects and Embodiments of the Disclosure

[0044] The present extendable basal thermometer was designed to deliver at least two key advantages: (i) to enable users to place the probe under the tongue while lying down comfortably, without needing to hold it in place with their hand during the measurement; and (ii) to enable users to easily read the device’s display while the measurement is being taken.Attorney Ref.: 61807.8W001

[0045] To use this thermometer, users can pull the cord and extend it to allow BBT reading while lying on the back without holding the thermometer body with hand. In some embodiments, the extendable cord has a locking mechanism that allows the cord to stay extended at the desired length if the retractable mechanism is in place. When not in use, the probe and attached extendable cord can be either wrapped around the main housing (Fig. 2) or retracted into the housing of the device (Figs. 3-4). To retract, the user can simply give the cord a slight tug to disengage the lock, or simply press on the retraction button located, for example, on the back of the device or on the lower housing. An exemplary spring-loaded reel retractable mechanism can be seen in Figs. 6-7, and 9-10.

[0046] In some embodiments, the spring can be made of metal or another deformable material including plastic.

[0047] In other embodiments, an alternative energy storage device may be substituted for the spring to facilitate retraction. In some embodiments, the spring or alternative energy storage device can be battery operated.

[0048] In certain embodiments, the retraction mechanism can be mechanical or electronic.

[0049] In contrast to commonly available, simple retractable mechanisms such as those found in retractable tape measures, badge reels, or vacuum cleaners, where controlling the speed of retraction is not an issue, technical challenges associated with having the temperature sensor separated from the housing, namely for the delicate parts like the temperature- sensing probe and the flexible cord, these common retractable mechanisms could cause damage easily on the probe or the cord.

[0050] As such, the retractable mechanism of the present disclosure is preferably designed to retract in controlled and gradual speed to prevent damage to the cable tip from abrupt pulling.Attorney Ref.: 61807.8W001

[0051] The basal temperature thermometer of the present disclosure addresses technical challenges such as: (1) electrical signal degradation or loss; and (2) slower or delayed reading.

[0052] The electrical signal degradation or loss can happen when the signal transmitted from its temperature-sensing probe of the thermometer to its motherboard in the housing that holds the electric circuit and microcontroller. This can result in inaccurate temperature readings.

[0053] To understand these challenges, it is important to understand how a digital thermometer measure and display the temperature results and why the electrical signal degradation or loss is not an issue for prior art one piece designed thermometers.

[0054] 1. Thermometer technical background

[0055] The process of how a regular digital thermometer such as an oral thermometer measures temperature and displays it involves several key steps and components. Here’s a simplified explanation of how it works:

[0056] A. Temperature Sensing: The tip of a digital thermometer contains a temperature sensor, which is typically a thermistor or a thermocouple. When the tip of the thermometer is placed in the mouth for oral thermometer, the sensor (thermistor or thermocouple) at the tip detects the temperature. This detection involves a physical change in the sensor material — either a change in electrical resistance (thermistor) or the generation of a voltage (thermocouple).

[0057] B. Signal Transmission: The change caused by the temperature at the sensor generates an electrical signal. This signal is then transmitted through wires or conductive paths embedded within the thermometer to the main electronic circuit. This circuit is typically located in the body or housing of the thermometer, where the display and battery are also housed.

[0058] C. Signal Processing: The electronic circuit receives this raw electrical signal and processes it. This processing involves amplification of the signal and conversionAttorney Ref.: 61807.8W001from an analog signal to a digital one, if necessary, so that it can be interpreted by the thermometer's microcontroller.

[0059] D. Data Processing: The amplified signal is then processed by a microcontroller, a small computer within the thermometer. The microcontroller is programmed to convert the electrical signal into a temperature reading based on a scale or mapping specific to the sensor type.

[0060] E. Display: The processed temperature is then displayed on the thermometer’s screen, usually in either Fahrenheit or Celsius. This display uses a liquid crystal display (LCD) or a light-emitting diode (LED) to show the numerical temperature reading.

[0061] The entire process is rapid, often taking just a few seconds, and is designed to provide an accurate measurement of body temperature when the thermometer is placed in the mouth. But for a high precision basal thermometer, the reading time is much longer.

[0062] 2. Electrical signal loss or degradation during transmitting

[0063] When the electrical signal is transmitted through wires or conductive paths, the signal will have some loss or degradation due to the resistance on the wires,

[0064] The resistance level ( “R”, measured in ohms (Q\Omega).) on the wire could be calculated using the formula (R Formula) belowwhere:• p (the Greek letter rho) represents resistivity, usually measured in ohmmeters (Q-m). The resistivity is an inherent property of a material, indicating the degree to which the material impedes the flow of electric current. For instance, the resistivity of pure copper is about;10' in 20 Celsius environments• A represents the cross-sectional area, usually measured in square meters (m2). • 1 represents the length of the conductor, measured in meters (m).Attorney Ref.: 61807.8W001For a normal one-piece design digital thermometer, the resistance level (“R”) normally is minimal or very small because the length of the conductor path or wire in this case is very short.

[0065] In the detached and extended probe design of the present disclosure, the wire or cord that connects the sensing probe of a thermometer is long. As a result, unless addressed, the resistance level (“R”) can increase, and the electronic signal degradation or loss becomes a major challenge that will result in incorrect temperature readings. For example, several technical challenges arise:

[0066] 1. Signal Degradation. As the distance between the probe and the microcontroller increases, the electrical signal (such as from a thermistor or thermocouple) can degrade, leading to noise or attenuation. This can result in inaccurate temperature readings.

[0067] 2. Power Loss. The longer the distance, the more resistance there is in the wires, which can cause voltage drop and power loss, affecting the performance of the probe and its ability to deliver reliable data.

[0068] 3. Compensation for Wire Resistance. With long cable runs, the resistance of the wire itself can affect the overall measurement. This requires special calibration in the circuit to compensate not only the signal loss but also minimize the noise or attenuation to ensure accurate readings.

[0069] 4. Data Transmission Delay. The distance can introduce signal latency or delays, especially when the thermometer uses analog signals, requiring faster signal transmitting or processing or digital signal conversion to maintain the similar, not delayed or slower, temperature measurement reading time.

[0070] 3. Slower or delayed reading due to signal transmitting

[0071] As discussed above, a basal temperature thermometer requires much longer reading time because its high precision needs to measure to 1 / 100'11of a degree so that it can detect minor temperature variation or changes. For example, reading time can be atAttorney Ref.: 61807.8W001least about 5 seconds, at least about 30 seconds, at least about 60 seconds, about 60- 120 seconds, about 90 seconds, or about 2 minutes.

[0072] A prior art one-piece basal thermometer takes about 60-90 seconds to produce an accurate basal temperature reading. To do that, the microcontroller of the basal thermometer will “force” reading for about 50 seconds first, then continue measuring until the temperature reaches a stable reading, which means that the temperature variation is less than or equal to 1 / 100thof a degree, for example for certain number of seconds such as 6 seconds, 8 seconds or 16 seconds etc. depending on the precision requirement and design requirements.

[0073] In the detached and extended probe design of the present disclosure, the data transmitting and conversion take longer not only because of much longer wires but also because of the noise and attenuation and special calibration. This will result in a longer than normal time to achieve a stable reading. If the temperature reading time becomes even longer than 90 seconds, the user experience will be impacted negatively.

[0074] To overcome the above-mentioned technical challenges and ensure accuracy of thermometer readings and maintain the similar temperature reading time in general, the presently disclosed basal temperature thermometer may incorporate one or more components to address these challenges:

[0075] 1. The Cable. Several aspects of the design of the flexible and extended cable that attaches the probe to the electric circuit address signal degradation and power loss challenges.

[0076] The cable of the basal temperature thermometer includes one or more highly conductive wires to connect the temperature sensor to the motherboard in the housing and convey the signal. The cable may include multiple strands of wire, for example, 2-20 strands, at least 5 strands, 5-15 strands, or 8-12 strands. In some embodiments, the cable includes 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, up to 20 or, in certain embodiments, about 10 strands of copper-containing wires.Attorney Ref.: 61807.8W001

[0077] The wires can be made of any highly conductive material, but some component of copper is preferably incorporated. In certain embodiments, the purity of copper in the wire is at least 50%, at least 60%, at least 75%, at least 85%. or at least 90% copper.

[0078] In certain embodiments, the cable of the basal thermometer consists of high-purity copper wire (approximately 99-100% purity, or 99.9% purity) with lower resistivity (p), for example about 1.68 X 10’8ohm-meters at 20°C, to ensure lower signal degradation and power loss, thereby accomplishing accurate readings of minor temperature changes. Other basal thermometers on the market generally use steel-core copper-clad wires, wherein the overall resistivity is higher than pure copper due to the presence of the less conductive steel core.

[0079] In certain embodiments, the cable used in the thermometer includes one or more strands of copper-containing wires. In some embodiments, the copper-containing wire has a diameter of between 0.05 and 0.15mm, between 0.05 and 0.13mm, between 0.05 and 0.11mm, or between 0.07mm and 0.09mm, or about 0.08mm, which results in a resistance value that is 5-30 times lower, or 10-25 times lower, or in some embodiments 18-22 times lower than a typical conductive wire found in other thermometers because of much bigger cross-sectional area A used in the R Formula contributed by multiple strands of highly conductive wires and overall thicker wires. A thicker cable resulting from multiple wires is one solution to signal degradation and power loss issues. Other thermometers on the market typically have a temperature sensing wire with a diameter of 0.18mm consisting of only two single-core enameled wires.

[0080] In the detached and extended probe design of the present disclosure, the wire or cord that connects the sensing probe of a thermometer is long, for example, at least about 15 cm, about 15 cm to about 30 cm, or about 15 to about 25 cm. In one embodiment, the connector wire is 18.5 cm.

[0081] In certain embodiments, since the probe and cable will be placed inside the user’s body during the reading, the cable insulation that surrounds the wires for this basal thermometer is made of flexible medical-grade material that is FDA-approved for use in medical and food-related applications. Other thermometers on the market generally useAttorney Ref.: 61807.8W001ABS plastic, including the area that goes into the mouth, which is not flexible, soft and extensible. In one embodiment, the flexible material is silicone.

[0082] In a preferred embodiment, the temperature-sensing probe of the thermometer is placed in the mouth and held under the tongue. In other embodiments, the thermometer can be inserted into other portions of the body. In some embodiments, the thermometer can be used orally, nasally, underarm, vaginally or anally.

[0083] 2. The Probe. The temperature- sensing probe includes a thermistor or thermocouple sensor element, in some embodiments a bare chip, attached to the cable described above. The present basal thermometer’s sensor is in direct contact with the steel cap thermowell, eliminating any unnecessary interference or resistance, thus achieving faster and more accuracy reading (Fig. 8).

[0084] For many regular thermometers on the market, during their production, the automated process machines stick the thermistor or thermocouple sensor with the connector wire into the steel cap that is pre-filled with thermal conductive adhesive or thermal paste without worrying about whether the sensor is in direct contact with the steel cap thermowell. This is for running the production at the highest production speed possible and make sure that there are no air gaps in the cap. So, when users measure the temperature, the surrounding temperature around the probe will transmit through the cap wall (steel cap thermowell) first, then through the dried thick adhesive layer, then finally reach the sensor. The extra adhesive layer between their thermistor sensor and the thermowell result in greater resistance and slower temperature response and balance time.

[0085] To produce the present basal thermometer, the production process ensures the thermistor or thermocouple sensor will be in direct contact with the steel cap thermowell directly. There is no concern about the air gap in the cap because the temperature transmission does not rely on transmitting through thermal conductive adhesive layer. As such, when users measure the temperature, the surrounding temperature around the probe will transmit through the cap wall and reach the sensor directly and quickly without the temperature loss and noise interference.Attorney Ref.: 61807.8W001

[0086] The presently disclosed basal thermometer with the detached sensor probe connected by an extended cord can maintain a similar temperature reading time at 60-90 seconds with very high accuracy.

[0087] 3. Calibration. For a highly sensitive thermometer, especially one with the probe and main body of the thermometer separated, the extended and long wire or cord could potentially introduce signal latency or delays, as well as greater resistance value. As such, to offset the inevitable electronic signal degradation or loss and signal latency, each thermometer’s microcontroller can be calibrated using a formula coupled with an extensive database to eliminate any discrepancies between the thermometer’s display and the true temperature around the probe.

[0088] In prior art regular digital thermometers in the market, normally the microcontroller is programmed to convert the electrical signal into a temperature result based on a fixed and preset scale or mapping specific to the sensor type. For instance, if the resistance value generated from a thermistor sensor at 37°C is about 33K , then the microcontroller will convert the signal into 37°C temperature to display if it receives about 33K electrical resistance. The conversion between the resistance and temperature is a linear formula or scale mapping. In this way, microcontrollers of prior art digital thermometers ignore the minor electronic signal degradation lost on the wire or adhesive layer.

[0089] In certain embodiments of the presently disclosed thermometer, individual calibration is used based on standard temperatures. This calibration ensures the thermometer’ s high accuracy.

[0090] In some embodiments, each thermometer is calibrated by placing it in a constant temperature water bath, which is preset to a standard temperature. The microcontroller is programmed to convert the actual received electrical signal to the correct standard temperature with a personalized parameter, rather than a fixed preset scale mapping. Each thermometer could have different personalized parameters based on the resistance level caused by the wire or other noise.Attorney Ref.: 61807.8W001

[0091] The formula and database used for the calibration also ensures the measurements can be delivered faster without jeopardizing its accuracy, consistency, and reliability.

[0092] In some embodiments, for higher accuracy, it is possible to calibrate each thermometer against multiple standard accurate temperatures such as 34°C, 37°C, or 39°C using the constant temperature water baths. Each thermometer may have multiple conversion parameters depending on which range the received actual electrical signal falls into.

[0093] 4. Retractable Mechanism that supports a gradual retraction to protect the probe

[0094] Unlike prior art retractable mechanisms, in some embodiments, the thermometer features an advanced reverse-gear system that allows the cable to retract in controlled sections. This design ensures a gradual retraction, preventing damage to the cable tip from abrupt pulling. In some embodiments, the retraction mechanism is within the housing. In other embodiments, the retraction mechanism can be outside the housing.

[0095] Fig. 10 is an enlarged design diagram of the component (8) in Fig. 9, which is a rotatable component to control each spring release to only go % turn of the component by creating a turning step for eachlA turn.

[0096] With reference to Fig. 9, in some embodiments, this embodiment incorporates a preloaded spring (part (6)) coupled with a rotational mechanism (part @) that automatically extends the probe (part ®) when activated. Retraction occurs seamlessly with the press of a recoil button (part ©), utilizing the stored spring energy for consistent and controlled motion.

[0097] By carefully stacking the electronic components (parts (4) and @), housing (parts (D and @), and mechanical assemblies, the design achieves a compact form that is both portable and stylish. The retractable sensor ensures hygienic storage, making it ideal for frequent use.Attorney Ref.: 61807.8W001

[0098] In some embodiments, the automatic sensor-retractable basal thermometer is designed for women trying to conceive (TTC), and combines precision, automation, and user-friendly functionality. The device addresses the need for accurate daily temperature tracking while offering an elegant, compact solution.

[0099] In the embodiments where the basal temperature thermometer is used for tracking ovulation, tracking is preferably conducted for a number of days, weeks or months. In some embodiments, tracking is conducted for at least 14, 21 or 28 days, for at least one month, at least 6, 7 or 8 weeks, or at least one, two, three or four months.[000100] User benefits include: (1) in some embodiments, automatic retraction for convenience: the probe cable extends and retracts automatically, minimizing effort and ensuring hygienic storage; (2) the device is compact and easy to use, integrating seamlessly into the routines of women tracking ovulation; (3) the device provides high accuracy in basal body temperature measurements that support effective ovulation prediction; and (4) it is portable and hygienic, ensuring the device remains clean and compact for daily use.[000101] In some embodiments, the automatic system for extending and retracting the basal thermometer's temperature probe includes precision engineering to ensure smooth and reliable operation. The thermometer fits seamlessly into the daily routines of TTC women, offering portability without sacrificing functionality.[000102] In yet more detail, the present disclosure is described by the following items which represent embodiments thereof.[000103] 1. A basal temperature thermometer comprising:a. a housing; andb. a temperature sensor capable of detecting basal body temperature within a hundredth of a degree,wherein the temperature sensor is separated from the housing butconnected to said housing at a distal end of a flexible and extended cord associated with the housing.Attorney Ref.: 61807.8W001[000104] 2. The basal temperature thermometer of Item 1, further comprising a retraction mechanism adapted to retract a portion of the flexible cord within the housing,wherein the portion of the flexible cord comprising the temperature sensor and the retraction mechanism can be stored in the housing.[000105] 3. The basal temperature thermometer of Item 1 or Item 2, wherein the housing comprises an upper housing and a lower housing.[000106] 4. The basal temperature thermometer of Item 2 or Item 3, wherein the retraction mechanism is interposed between the upper housing and the lower housing.[000107] 5. The basal temperature thermometer of any one of Items 2-4, wherein the retraction mechanism comprises a rotatable component around which the flexible cord can be wound.[000108] 6. The basal temperature thermometer of any one of Items 2-5, wherein said retraction mechanism further comprises an energystorage device to facilitate retraction.[000109] 7. The basal temperature thermometer of any one of Items 2-6, wherein the upper housing connects to one or more components for providing the basal temperature.[000110] 8. The basal temperature thermometer of any one of Items 1-7, wherein the flexible cord comprising the temperature sensorcomprises one or more temperature conducting wires and a casing.Attorney Ref.; 61807.8W001[000111] 9. The basal temperature thermometer of Item 8, wherein the one or more temperature conducting wires comprise copper.[000112] 10. The basal temperature thermometer of Item 8 or 9, wherein the casing comprises silicone.[000113] 11. The basal temperature thermometer of any one of Items 1-10, wherein the flexible cord comprises a steel probe head.[000114] 12. The basal temperature thermometer of Item 10, wherein the steel probe head comprises a temperature sensor.[000115] 13. The basal temperature thermometer of any one of Items 2-12, wherein the upper housing comprises a power button.[000116] 14. The basal temperature thermometer of any one of Items 2-13, wherein the upper housing comprises a temperature display.[000117] 15. The basal temperature thermometer of any one of Items 2-14, wherein the lower housing comprises a retraction button.[000118] 16. The basal temperature thermometer of any preceding Item, wherein the retraction mechanism comprises detents to control retraction speed.[000119] 17. A method of detecting basal temperature, which comprises:a. switching on the power button of the basal temperature thermometer ofany preceding Item;b. extending the flexible cord of the basal temperature thermometer awayfrom the housing and into the body of a patient; andAttorney Ref.: 61807.8W001c. placing the steel probe head comprising the temperature sensor inside the patient’s body until a stable temperature is detected.[000120] 18. A method for tracking ovulation, which comprises:a. measuring basal temperature with the basal temperature thermometer ofany one of Items 1-16 every morning for a number of days, by:i. switching on the power button of the basal temperature thermometer;ii. extending the flexible cord of the basal temperature thermometer awayfrom the housing and into the body of a patient;iii. placing the steel probe head comprising the temperature sensor inside the patient’s body until a stable temperature is detected;iv. identifying a pattern wherein across the number of days wherein there is a slight drop in temperature followed by a sharp increase in temperature;andb. determining that ovulation occurs at the time of the slight drop in temperature followed by the sharp increase in temperature.[000121] 19. A method for storing the temperature probe associated with the basal temperature thermometer, which comprises:a. wrapping a portion of the flexible cord comprising the temperature sensor of the basal temperature thermometer of any one of Items 1-16 around the housing; orb. disengaging a locking mechanism that locks ta portion of the flexible cord of the basal temperature thermometer of any one of Items 2-16 into an extended position by:i. tugging the extended flexible cord to allow the flexible cord to retract; or ii. pressing a retraction button that disengages the locking mechanism toallow the flexible cord to retract.Attorney Ref.; 61807.8W001[000122] 20. A method for reducing signal loss or degradation and decreasing temperature reading time in the basal temperature thermometer of any one of Items 1-16, which comprises:a. constructing the temperature sensor with a thermocouple sensor element in direct contact with a steel cap thermowell:b. connecting the temperature sensor to the housing through one or more highly conductive, flexible wires of a diameter less than 0.15 mm;c. insulating the one or more cables comprising two or more strands ofhighly conductive wires with a medical-grade, flexible and extensible material; andd. individually calibrating a microcontroller within the housing to eliminateany discrepancies between a temperature display on the housing and a true temperature received at the temperature sensor.[000123] 21. A basal temperature thermometer comprising:a. a housing comprising an upper housing and a lower housing;b. a flexible and extended cord comprising a temperature sensor at a distal end; andc. a retraction mechanism interposed between the upper housing and thelower housing;wherein the retraction mechanism comprises a rotatable component around which the flexible and extended cord is wound, and an energy storage device configured to facilitate automatic retraction of the flexible and extended cord.[000124] 22. The basal temperature thermometer of Item 21, wherein the energy storage device comprises a spring or clockwork feed.[000125] 23. The basal temperature thermometer of Items 21 or 22, further comprising a retraction button located on the housing, wherein pressing the retraction button disengages a locking mechanism to allow the flexible and extended cord to retract.Attorney Ref.; 61807.8W001[000126] 24. The basal temperature thermometer of any one of Items 21-23, wherein the retraction mechanism comprises a reverse-gear system configured to allow the flexible and extended cord to retract in controlled sections to prevent damage to the temperature sensor from abrupt pulling.[000127] 25. The basal temperature thermometer of any one of Items 21-24, wherein the rotatable component comprises detents, and wherein the retraction mechanism is configured such that each gradual turn of the rotatable component constitutes a distinct detent position to control retraction speed.[000128] 26. The basal temperature thermometer of any one of Items 21-25, wherein the temperature sensor comprises a sensor tip configured to be held in place under a tongue of a user without hand support.[000129] 27. A high-precision basal thermometer system comprising: a. a housing enclosing a microcontroller;b. a temperature probe comprising a sensor tip; andc. a flexible cable connecting the sensor tip to the housing;wherein the flexible cable comprises a plurality of high-conductivity wire strands, wherein each of said wire strands comprises a copper content of at least 99%; andwherein each of said wire strands has a diameter of less than 0.15 mm to minimize signal degradation across the flexible cable while maintaining flexibility.[000130] 28. The basal thermometer system of Item 27, wherein the sensor tip comprises a thermowell and a thermistor, and wherein the thermistor is positioned in direct physical contact with an inner surface of the thermowell without an intervening thermal adhesive layer.Attorney Ref.: 61807.8W001[000131] 29. The basal thermometer system of Item 27 or 28,wherein the microcontroller stores an individual calibration parameter derived from a production- stage comparison between a signal received from the temperature probe and a standard temperature reference, and wherein the microcontroller is configured to apply said personalized calibration parameter to temperature signals received during use to compensate for electrical resistance of the flexible cable.[000132] 30. The basal thermometer system of any one of Items 27- 29, wherein the flexible cable is insulated with a medical-grade silicone material configured to be extensible and flexible.[000133] 31. A method of measuring basal body temperature using a basal body thermometer with an extended and flexible cord, the method comprising:a. providing a basal body thermometer comprising a housing and a sensor tip separated from the housing but connected to the housing by a flexible and extended cord;b. positioning a user in a lying down position;c. placing the sensor tip under the tongue of the user;d. retaining the sensor tip under the tongue using the tongue or lips of theuser without holding the sensor tip with a hand; ande. maintaining the user in the lying down position and the sensor tip underthe tongue for a measurement period to acquire a basal body temperature reading;whereby the step of retaining the sensor tip without holding it with a hand minimizes physical activity of the user which can increase the bodytemperature and affect accuracy of the temperature measurement.[000134] 32. The method of Item 31, further comprising:Attorney Ref.; 61807.8W001a. holding the housing in a hand of the user at a distance permitted by the flexible and extended cord such that a display on the housing is visible to the user; andb. viewing a temperature reading on the display while the user remains in the lying down position and the sensor tip remains under the tongue.[000135] The following examples are provided to aid the understanding of the present disclosure, the true scope of which is set forth in the appended claims. It is understood that modifications can be made in the procedures set forth without departing from the spirit of the disclosure.[000136] EXAMPLES[000137] Example 1: Assembly Process[000138] For the assembly process with reference to Fig. 9: (1) pre-wind the spring (part @) and attach it to the rotational structure (part @); (2) secure the temperature probe (part ©) to the rotational component, ensuring smooth automatic retraction and extension; (3) assemble the upper housing (part @) with the electronic board (part @). screen (part ©), and switch button (part @); (4) integrate the rotational structure into the upper housing, then add the spring (part @) and recoil button (part (W)); and attach the lower housing (part @) to complete the assembly.[000139] Example 2; Installation Procedure:[000140] Installation Procedure with reference to Fig. 9: Initially, wind and secure the @ Clockwork Feed around the @ Rotatable Component. Then, wind the ® Temperature Probe around and secure it on the opposite side of the ® Rotatable Component. Affix the @ Holding Part, ©Motherboard. © Viewing Window, and @ Power Switch to the © Upper Housing. Next, assemble the pre-installed @ Thermometer Probe onto the assembled @ Upper Housing. Finally, Insert the @ Spring and @ Retraction Button into the ©Rotatable Component, and complete the assembly by capping it with the @ Lower Housing.Attorney Ref.: 61807.8W001[000141] Example 3: Usage Instructions:[000142] Usage Instructions with reference to Fig. 9: In the retracted position, hold the tip of the @ Temperature Probe to pull it out. Due to the elastic force exerted by the @ Spring, the (W) Retraction Button engages with the detent on the ® Rotatable Component, aligning them on the same plane. Therefore, when the detent on the @ Retraction Button engages with the detent on the (§) Rotatable Component, the spring-loaded action ceases. Each 1 / 4 turn constitutes a distinct detent position.[000143] Example 4: Retraction Operation[000144] Retraction Operation with reference to Fig. 9: In the extended position, press the @ Retraction Button. This action will disengage the detent of the (JO) Retraction Button from the detent of the @ Rotatable Component. By leveraging the elastic force of the @ Clockwork Feed, the ® Temperature Probe can then be retracted automatically.[000145] The compositions and processes of the present disclosure will be better understood in connection with the following examples, which are intended as an illustration only and not limiting of the scope of the disclosure. Various changes and modifications to the disclosed embodiments will be apparent to those skilled in the art and such changes and modifications including, without limitation, those relating to the processes, formulations and / or methods of the disclosure may be made without departing from the spirit of the disclosure and the scope of the appended claims.[000146] The patent and scientific literature referred to herein establishes the knowledge that is available to those with skill in the art. All United States patents and published or unpublished United States patent applications cited herein are incorporated by reference. All published foreign patents and patent applications cited herein are hereby incorporated by reference. All other published references, documents, manuscripts and scientific literature cited herein are hereby incorporated by reference.[000147] While this disclosure has been particularly shown and described with references to preferred embodiments thereof, it will be understood by those skilled in theAttorney Ref.: 61807.8W001art that various changes in form and details may be made therein without departing from the scope of the disclosure encompassed by the appended claims.

Claims

Attorney Ref.: 61807.8W001WHAT IS CLAIMED IS:

1. A basal temperature thermometer comprising:a) a housing; andb) a temperature sensor capable of detecting basal body temperature within a hundredth of a degree,wherein the temperature sensor is separated from the housing but connected to the housing at a distal end of a flexible and extended cord associated with the housing.

2. A basal temperature thermometer comprising:a) a housing comprising an upper housing and a lower housing;b) a flexible and extended cord comprising a temperature sensor at a distal end; andc) a retraction mechanism interposed between the upper housing and the lower housing;wherein the retraction mechanism comprises a rotatable component around which the flexible and extended cord is wound, and an energy storage device configured to facilitate automatic retraction of the flexible and extended cord.

3. The basal temperature thermometer of Claim 2, wherein the energy storage device comprises a spring or clockwork feed.

4. The basal temperature thermometer of Claim 2 or 3, further comprising a retraction button located on the housing, wherein pressing the retraction button disengages a locking mechanism to allow the flexible and extended cord to retract.

5. The basal temperature thermometer of any preceding claim, wherein the retraction mechanism comprises a reverse-gear system configured to allow the flexible and extended cord to retract in controlled sections to prevent damage to the temperature sensor from abrupt pulling.Attorney Ref.; 61807.8W0016. The basal temperature thermometer of any preceding claim, wherein the rotatable component comprises detents, and wherein the retraction mechanism is configured such that each gradual turn of the rotatable component constitutes a distinct detent position to control retraction speed.

7. The basal temperature thermometer of any preceding claim, wherein the temperature sensor comprises a sensor tip configured to be held in place under a tongue of a user without hand support.

8. A high-precision basal thermometer system comprising:a) a housing enclosing a microcontroller;b) a temperature probe comprising a sensor tip; andc) a flexible cable connecting the sensor tip to the housing;wherein the flexible cable comprises a plurality of high-conductivity wire strands, wherein each of said wire strands comprises a copper content of at least 99%; andwherein each of said wire strands has a diameter of less than 0.15 mm to minimize signal degradation across the flexible cable while maintaining flexibility.

9. The basal thermometer system of Claim 8, wherein the sensor tip comprises a thermowell and a thermistor, and wherein the thermistor is positioned in direct physical contact with an inner surface of the thermowell without an intervening thermal adhesive layer.

10. The basal thermometer system of Claim 8 or Claim 9, wherein the microcontroller stores an individual calibration parameter derived from a production-stage comparison between a signal received from the temperature probe and a standard temperature reference, and wherein the microcontroller is configured to apply said personalized calibration parameter to temperature signals received during use to compensate for electrical resistance of the flexible cable.Attorney Ref.; 61807.8W00111. The basal thermometer system of any one of Claims 8-10, wherein the flexible cable is insulated with a medical-grade silicone material configured to be extensible and flexible.

12. A method of measuring basal body temperature using a basal body thermometer with an extended and flexible cord, the method comprising:a) providing a basal body thermometer comprising a housing and a sensor tip separated from the housing but connected to the housing by a flexible and extended cord;b) positioning a user in a lying down position:c) placing the sensor tip under the tongue of the user;d) retaining the sensor tip under the tongue using the tongue or lips of the user without holding the sensor tip with a hand; ande) maintaining the user in the lying down position and the sensor tip under the tongue for a measurement period to acquire a basal body temperature reading;whereby the step of retaining the sensor tip without holding it with a hand minimizes physical activity of the user which can increase the body temperature and affect accuracy of the temperature measurement.

13. The method of Claim 12, further comprising:a) holding the housing in a hand of the user at a distance permitted by the flexible and extended cord such that a display on the housing is visible to the user; andb) viewing a temperature reading on the display while the user remains in the lying down position and the sensor tip remains under the tongue.