TWI498105B - Independent tumor detection module - Google Patents

Description

External tumor detection module

The invention relates to a tumor detecting module, in particular to an external tumor detecting module.

The existing methods of tumor detection are based on self-diagnosis, but the accuracy of palpation is not high. The other is to go to large hospitals for inspection by large equipment such as ultrasound, MRI, etc., but this method requires many techniques. The personnel cannot complete the results themselves, nor can they get the results of the inspection in a short time. Moreover, most people do not have the habit of regularly going to the hospital for testing, so it is impossible to achieve the effect of early detection.

Therefore, how to provide an external tumor detection module can facilitate the user to self-detect to achieve the effect of prevention or early detection, which is one of the current important topics.

In view of the above problems, an object of the present invention is to provide an external tumor detecting module that can be easily detected by a user.

In order to achieve the above object, an external tumor detecting module according to the present invention is configured to detect whether a tissue has a tumor, and is used in combination with an electronic device, which comprises a plurality of light emitting elements, at least one light sensing element, and a A signal transmission unit and a processing unit. The illuminating elements alternately emit a light that is diffracted through the tissue. The light sensing elements are disposed adjacent to the light emitting elements, absorbing the diffracted rays and correspondingly generating a plurality of sensing signals. The signal transmission unit transmits the sensing signals to the electronic device, so that the electronic device can determine whether the tissue has a tumor according to the sensing signals. The processing unit is electrically connected to the light emitting elements, the light sensing elements, and the signal transmission unit.

In an embodiment of the present invention, the external tumor detection module further includes a processing program for determining whether the tissue has a tumor according to the sensing signals, and the processing program can be stored on a CD, a memory or A server.

In an embodiment of the invention, any two of the light-emitting elements are separated by a horizontal distance of x centimeters, and the light-sensing element is separated from one of the light-emitting elements by a horizontal distance of one ym, wherein x and y satisfy x. The relationship of 0.1*y. In addition, when the external tumor detecting module has a plurality of light sensing elements, the light sensing elements are disposed adjacent to the light emitting elements and the light emitting elements are substantially located at the center of the light sensing elements. The light sensing elements respectively absorb the diffracted rays to generate the sensing signals.

In an embodiment of the invention, the wavelengths emitted by the light-emitting elements correspond to parameters of at least two of deoxyhemoglobin, total blood volume, oxygenated hemoglobin, water, and fat, respectively. In addition, the light emitted by one of the light-emitting elements is corrected as a skin tone.

In view of the above, the present invention discloses an external tumor detection module, wherein the external connection refers to connection with an electronic device or wireless communication with an electronic device, for example, by a connector. In this way, if the user needs to detect the normality of the body tissue from time to time, the user can purchase an external tumor detection module and connect with an electronic device such as a mobile phone or a PDA to detect or purchase an external tumor. The detection module can communicate wirelessly with the electronic device. For example, through the Bluetooth technology, the detection result can be transmitted to the electronic device for processing to obtain the detection result. Therefore, the external tumor detection module of the invention can help the user to detect by itself to achieve the effect of prevention or early detection, and is very convenient to use, which greatly improves the user's willingness to detect by himself.

In addition, the illuminating element emits a light (for example, near-infrared rays) in turn through the tissue, and is absorbed by the light sensing element to generate a sensing signal, due to the oxygenated blood-based blood lysin and deoxygenated blood base of the diseased tissue and the normal tissue. The ratio of blood lysin is different, so when the light passes through the normal tissue and the diseased tissue, the degree of light absorption is different, so that the signal intensity of the near-infrared spectrum recovered by the tissue diffraction is different. In this way, it is possible to determine whether the tissue has a diseased tissue such as a tumor or a cancer cell by the processing of the processing unit.

Furthermore, the present invention satisfies x by x and y a relationship of 0.1*y, and limiting the horizontal distance between each of the light-emitting elements and the light-sensing element is substantially the same, so that the light-sensing elements receive light from the respective light-emitting elements on the same reference line, thereby simplifying analysis and Reduce the cost of the processing program.

In addition, the light emitted by one of the light-emitting elements is corrected as a skin color, which improves the accuracy of tumor determination.

In addition, the plurality of light sensing elements are disposed at a central range of the light emitting elements, and the sensing signals of the light sensing elements can further improve the accuracy as a basis for determining the tumor, and the light sensing elements are disposed on the light sensing elements. The central range of the illuminating elements also simplifies the signal processing.

An external tumor detecting module according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein like elements will be described with the same reference numerals.

1 is a schematic diagram of an external tumor detecting module 1 according to a preferred embodiment of the present invention, FIG. 2 is a block diagram of an external tumor detecting module 1, and FIG. 3 is an external tumor detecting module 1 and A schematic diagram of an electronic device E used in conjunction. The external tumor detection module 1 includes a processing unit 11, a plurality of light-emitting elements 12, a light sensing element 13, and a signal transmission unit 14. The external tumor detection module 1 is used to allow the user to hold and approach the body tissue for detection of diseased tissues such as tumors or cancer. The tumor system referred to in this embodiment generally refers to a general diseased tissue, such as a general tumor or cancer.

The external tumor detecting module 1 can be made into any shape that is convenient for the user to use or hold, and the external tumor detecting module 1 is made into a shape similar to a USB hard disk.

The light-emitting elements 12 are disposed on the carrier 11 and alternately emit a light that is diffracted through the tissue (which may include scattering). The light-emitting element 12 of the present embodiment is exemplified by a light-emitting diode (LED). The number of the light-emitting elements 12 may be greater than two, and six LEDs are taken as an example. The illuminating elements 12 emit a ray of light in turn, and there is no specific order of illumination, which can be ordered, for example, in order of illumination. When the user holds the external tumor detecting module 1 for detection, the light emitted by the light-emitting element 12 is diffracted through human tissue (for example, a breast).

Each of the light-emitting elements 12 emits light of different wavelengths. Here, the light-emitting elements 12 emit light having wavelengths of 690 nm, 760 nm, 805 nm, 850 nm, 910 nm, and 970 nm, respectively, wherein 690 nm is used for skin color correction, and 760 nm is deoxygenated. The heme and 805 nm correspond to the spectral intersection of deoxyhemoglobin and oxygenated hemoglobin and can express the total blood volume. The 850 nm system corresponds to the oxygenated hemoglobin, the 910 nm-based corresponding water, and the 970 nm-based corresponding fat. In addition, in order to improve the ability of the signal interpretation, the external tumor detection module 1 further includes a filter 15 disposed on the light path of the light-emitting elements 12 to allow light to pass through the filter 15 to reach the light sensing. Element 13. The filter 15 of this embodiment can exclude light below 650 nm to eliminate interference of visible light.

The light sensing elements 13 are disposed adjacent to the light emitting elements 12, absorbing the diffracted rays and correspondingly generating a plurality of sensing signals. The light sensing element 13 can be, for example, a photodiode or a charge coupled device (CCD) or the like that converts light into an electrical signal.

The signal transmission unit 14 transmits the sensing signals to the electronic device E, so that the electronic device E can determine whether the tissue has a tumor according to the sensing signals. Here, the electronic device E is exemplified by a mobile phone. The signal transmission unit 14 can be a wireless transmission unit or a wired transmission unit. The wired transmission unit is taken as an example, and the transmission interface is a USB transmission interface. The signal transmission unit 14 includes a connector (USB connector), and the connector is exposed to the external tumor detecting module 1. Please refer to FIG. 4, which shows that the signal transmission unit is a wireless transmission unit and performs wireless communication with the electronic device E, such as Bluetooth communication.

The processing unit 11 is electrically connected to the light-emitting elements 12, the light-sensing elements 13, and the signal transmission unit 14, and can be driven to operate. Here, the processing unit 11 includes a circuit board and electronic components and circuits on the circuit board, such as a processor and a controller. In addition, the processing unit 11 can receive and process the sensing signal. Here, the processing unit 11 can include a digital to analog converter (DAC), which can sense the digital position generated by the light sensing component 13. The signal is converted into an analog sensing signal. In addition, the processing unit 11 may have, for example, a filter circuit, a comparison circuit, and the like as needed. Here, the processing unit 11 has a low pass filter (LPF) to filter high frequency noise. It should be noted that some functions of the processing unit 11 may also be moved to the electronic device E for execution, for example, the digital/analog conversion circuit may be moved to the electronic device E.

The external tumor detecting module 1 further includes a housing 18 for accommodating the light emitting elements 12, the light sensing elements 13, the signal transmitting unit 14, and the processing unit 11. In addition, the external tumor detecting module 1 further includes a power supply unit 16 and at least one control button 17, and the power supply unit 16 and the control button 17 are electrically connected to the processing unit 11, and the power supply unit 16 includes, for example, a battery or a charging circuit. The control button 17 can be used as a switch for the power supply unit 16. In addition, the control button 17 can also be used for other functions, such as selection of an operation mode, or the external tumor detection module 1 can include other control buttons for other functions.

FIG. 5 is an enlarged schematic plan view of the external tumor detecting module 1. As shown in FIG. 5, the center point of any two light-emitting elements (Fig. 5 is based on the second and third figures above) is a horizontal distance of x cm, and the light sensing element 13 is illuminated with one of them. The component (not limited to which one, for example, the fourth one) is a horizontal distance of one ycm, where x and y satisfy x. a relationship of 0.1*y, whereby the horizontal distance between each of the light-emitting elements 12 and the light-sensing element 13 can be substantially the same, so that the light-sensing elements 13 receive the light emitted from the respective light-emitting elements 12 at the same reference line. This simplifies the analysis. In the present embodiment, the light-emitting elements 12 are arranged in a line and are located on one side of the light sensing element 13. It should be added that x may be caused by manufacturing errors or deliberately avoiding design, and the latter should be considered to be the same as the concept of the present invention. In addition, the larger x is, the more difficult it is to analyze the signal, but x still has a reasonable range.

Before continuing to explain the operation of the external tumor detection module 1, it is necessary to explain the diffraction of light (including scattering) in the tissue. Referring to FIG. 6 and FIG. 7 , it is shown that the light-emitting element 12 emits light, the light is diffracted through the tissue, and is received by the light-sensing element, wherein the tissue of FIG. 6 is a normal tissue, and the organization of FIG. 7 It has a diseased tissue T. As can be seen from Fig. 7, a part of the diffracted light is absorbed by the diseased tissue T, so that the intensity of the light received by the light sensing element 13 is weakened.

FIG. 8 is a schematic diagram of the operation of the user holding the external tumor detecting module 1 for detecting, wherein the user performs scanning detection in a horizontal direction, for example, a left chest to a right chest. During detection, the illuminating element 12 emits light of different wavelengths in turn, and is absorbed by the light sensing element 13 via tissue diffraction and correspondingly generates a plurality of sensing signals. It should be noted that in Figure 8, the wireless transmission is taken as an example. Therefore, the user only needs to hold the external tumor detection module 1 for detection. If wired transmission is taken as an example, the user needs to connect the external tumor detection first. The test module 1 and the electronic device E (ie, in the aspect of FIG. 3) are scanned again.

The signal transmission unit 14 transmits the sensing signal to the electronic device E for analysis processing. The waveform of the sensing signal processed by the electronic device E can be referred to FIG. 9, wherein the X-axis unit is millisecond (ms), the Y-axis unit is voltage, and FIG. 9 is based on a diseased tissue. As can be seen from FIG. 9, when the external tumor detecting module 1 scans in the direction as shown in FIG. 8, and the scanning starts to normal tissue, the signal system has no special change (0ms to 800ms), and when scanning In diseased tissue, the signal intensity decreased significantly (900ms to 1350ms), because some of the light was absorbed by the diseased tissue, and then when it was scanned again to normal tissue, the signal intensity returned to normal (1800ms to 2500ms). Thereby, the electronic device E can determine whether the tissue has a tumor according to the sensing signals.

In other embodiments, the external tumor detection module 1 can further include a processing program for determining whether the tissue has a tumor according to the sensing signals, that is, the processing program receives the sensing signals and outputs whether Has the result of a tumor. The processing program can be stored on a CD, a memory or a server. When the user purchases the external tumor detection module 1, it can attach a CD, a USB hard disk, or give a password to download the processing program from the server. In addition, the processing program can also be stored in the memory of the external tumor detecting module 1. In this aspect, the external tumor detecting module 1 can also be used as a mobile hard disk.

In addition, as can be seen from FIG. 9, the sensing signals all have the same tendency, for example, falling or rising almost simultaneously, because the horizontal distances of the light-emitting elements and the light-sensing elements of the embodiment are substantially the same. . Therefore, the embodiment can simplify the analysis and reduce the cost of the processing program and the memory space occupied by the processing program.

In addition, as can be seen from FIG. 9, the waveforms of the sensing signals corresponding to all of the light-emitting elements 12 have similar trends, which also proves that only two or more light-emitting elements 12 are needed in this embodiment to determine whether or not a tumor exists. Of course, the sensing signals of this embodiment can be used to analyze the values of various parameters (such as deoxyhemoglobin, oxygenated hemoglobin) for subsequent analysis, such as confirming the type of tumor.

When the distance (y) of the light-emitting element 12 from the light-sensing element 13 is farther, the light emitted by the light-emitting element 12 needs to travel a long distance to reach the light-sensing element 13, which may increase noise interference and signal. The chance of attenuation affects the accuracy, and may cause the time of the waveform drop shown in FIG. 9 to be elongated and the magnitude of the decrease is small and unfavorable. And the larger the y, the more disadvantageous the thinning. By verification, when the distance (y) of the light-emitting element 12 from the light-sensing element 13 is less than 3 cm, the accuracy can be significantly improved.

In addition, the external tumor detecting module 1 can also have a plurality of light sensing elements 13, as shown in FIG. 10, which display the two light sensing elements 13 and the light emitting elements 12 disposed. The two light sensing elements 13 are disposed adjacent to the light emitting elements 12 and the light emitting elements 12 are substantially located at the center of the two light sensing elements 13, and the two light sensing elements 13 respectively absorb the diffracted rays. Generate a sensing signal. It should be noted that the light-emitting elements 12 shown in FIG. 10 are drawn at a relatively large scale. In fact, the light-emitting elements 12 are substantially located in the center of the two-photosensitive sensing element 13.

When the user scans the tumor tissue using the external tumor detecting module 1 having the two light sensing elements 13, one of the light sensing elements 13 first receives the light emitted by the light emitting element 12 and passes through the tumor, and the sensing thereof The signal waveform can be, for example, as shown in FIG. 11A. When the user continues to scan, the other light sensing element 13 also receives the light emitted by the light-emitting element 12 and passes through the tumor. The sensing signal waveform can be, for example, as shown in FIG. 11B. As can be seen from FIG. 11A and FIG. 11B, there is a time difference at the time point when the waveforms of the two are lowered, because the light sensing elements 13 are disposed on both sides of the light-emitting element 12. The presence or absence of the tumor and the location of the tumor can be more accurately determined by the waveforms of FIGS. 11A and 11B.

In addition, the processing program of the embodiment can establish a functional relationship between the sensing signals generated by the two light sensing elements 13 to generate a complex processing signal, and determine whether the tissue has a tumor according to the processing signals. The waveform of the processing signal is as shown in FIG. 12, and the processing signal of the embodiment is generated by establishing a function relationship between the sensing signals of FIG. 11A and FIG. 11B, and each processing signal is generated by the optical sensing components. 13 is generated by receiving a sensing signal generated by light emitted by the same light-emitting element. It should be noted that the waveform shown in FIG. 11A is generated by the light sensing element 13 disposed on the left side (L) of the light emitting element, and the waveform shown in FIG. 11B is disposed on the right side of the light emitting element (R). The light sensing element 13 is produced. Thus, the waveform shown in Fig. 12 is formed by log(L)-log(R). Thus, when the elliptical dotted line area shown in Fig. 12 appears, it is confirmed that the tumor exists and the tumor position is known. In practice, when the processing program analyzes the elliptical dotted line area, the electronic device E or the external tumor detecting module 1 can beep to remind the user, and the position of the tumor is near the light emitting element 12.

In addition, the external tumor detecting module 1 can also have a number of light sensing elements 13 greater than 2, as shown in FIG. 13, which shows the arrangement of the four light sensing elements 13 and the light emitting elements 12. The light sensing elements 13 are disposed adjacent to the light emitting elements 12 and the light emitting elements 12 are substantially located at the center of the four light sensing elements 13, and the four light sensing elements 13 respectively absorb the diffracted rays. Corresponding to generate a sensing signal. The sensing signals generated by the optical sensing elements 13 can be referred to FIG. 11A, FIG. 11B and FIG. 12, and details are not described herein again.

The following is an example of the situation in Figure 13 for tumor detection. As shown in FIG. 14A, the tumor T is located between the light-emitting element 12 and the light-sensing element 13a. At this time, the signal intensity of the light-sensing element 13a is smaller than the signal intensity of the light-sensing element 13b, and the light-sensing element 13c The signal intensity is equal to the signal intensity of the light sensing element 13d. Thus, the processing module can determine that the position of the tumor is located between the light emitting element 12 and the light sensing element 13a.

As shown in FIG. 14B, the tumor T is located between the light-emitting element 12 and the light-sensing element 13c. At this time, the signal intensity of the light-sensing element 13c is smaller than the signal intensity of the light-sensing element 13d, and the light-sensing element 13a The signal intensity is equal to the signal intensity of the light sensing element 13b. Thus, the processing module can determine that the position of the tumor is located between the light emitting element 12 and the light sensing element 13c.

As shown in FIG. 14C, the tumor T is located between the light-emitting element 12 and the light-sensing element 13c and the light-sensing element 13a. At this time, the signal intensity of the light-sensing element 13c is smaller than the signal intensity of the light-sensing element 13d. The signal intensity of the light sensing component 13a is smaller than the signal intensity of the light sensing component 13b. Thus, the processing module can determine that the position of the tumor is located in the light emitting component 12 and the light sensing component 13c and the light sensing component 13a. between.

Through the above mechanism, the position of the tumor can be obtained to achieve the tumor localization function, and in the process of positioning, the processing program can be added to the immediate guidance function, for example, when the processing program determines that the tissue has a tumor, the electronic device E or the external tumor detection The test module 1 can issue a prompt to indicate the location of the tumor or tumor.

In addition, the above six sensing signals can be used to compare the signal strength to determine the tumor and its position, and the sensing signal can also use the formula to calculate the tissue components of the oxygen hemoglobin, the oxygenated hemoglobin, the water, and the fat. The data in the database were compared to accurately understand the presence and type of the tumor. The above-mentioned one of the light-emitting elements 12 (herein, 690 nm is taken as an example) can be used as a skin color correction, and there are two methods for correcting the same. One is to introduce a sensing signal for skin color correction into a formula by a processing program. Corrected components of deoxyhemoglobin, oxygenated hemoglobin, water, and fat. The other method uses a look-up table by means of a processing program, and the indication of the lookup table can be as shown in the following table:

Wherein, if the intensity of the sensing signal used for skin color correction (for example, the average intensity) is A ₁ , A ₂ , A ₃ , A ₄ , respectively, the corresponding deoxyhemoglobin, oxygenated hemoglobin, water, and fat have Its correction value δ ₁₁ ... is corrected.

In addition, in the embodiment, in order to prevent interference of external light, the external tumor detecting module 1 may have a dark current operation mode. When the external tumor detecting module 1 is in the dark current operation mode, the light emitting elements 12 are not illuminated, and the light sensing element 13 senses an ambient light to generate an environmental sensing signal, and the ambient sensing signal The device transmits to the electronic device E, so that the processing program corrects the sensing signals by the environmental sensing signal. It should be noted that when the user uses the dark current operation mode, the user can bring the external tumor detection module 1 close to the body to improve the accuracy of the environmental sensing signal.

The environmental sensing signal of the present embodiment has a curve labeled "dark" as shown in FIG. 11A and FIG. 11B. Since the embodiment is implemented in a dark space, the signal intensity of the environmental sensing signal is close to zero. The calibration method of the environmental sensing signal can be obtained by using a formula or a look-up table, wherein the formula can deduct the environmental sensing signal by using the sensing signals, for example, the look-up table can be modeled after the skin color correction check table, and no longer Narration. It should be noted that the environmental sensing signal not only reflects the ambient light, but also reflects the interference of the light sensing component's own signal.

In summary, the present invention discloses an external tumor detection module, wherein the external connection refers to connection with an electronic device or wireless communication with an electronic device, for example, by a connector. In this way, if the user needs to detect the normality of the body tissue from time to time, the user can purchase an external tumor detection module and connect with an electronic device such as a mobile phone or a PDA to detect or purchase an external tumor. The detection module can communicate wirelessly with the electronic device. For example, through the Bluetooth technology, the detection result can be transmitted to the electronic device for processing to obtain the detection result, and even the personal history data can be stored. Therefore, the external tumor detection module of the invention can help the user to detect by itself to achieve the effect of prevention or early detection, and is very convenient to use, which greatly improves the user's willingness to detect by himself.

In addition, the illuminating element emits a light (for example, near-infrared rays) in turn through the tissue, and is absorbed by the light sensing element to generate a sensing signal, due to the oxygenated blood-based blood lysin and deoxygenated blood base of the diseased tissue and the normal tissue. The ratio of blood lysin is different, so when the light passes through the normal tissue and the diseased tissue, the degree of light absorption is different, so that the signal intensity of the near-infrared spectrum recovered by the tissue diffraction is different. In this way, it is possible to determine whether the tissue has a diseased tissue such as a tumor or a cancer cell by the processing of the processing unit.

Furthermore, the present invention satisfies x by x and y a relationship of 0.1*y, and limiting the horizontal distance between each of the light-emitting elements and the light-sensing element is substantially the same, so that the light-sensing elements receive light from the respective light-emitting elements on the same reference line, thereby simplifying analysis and Reduce the cost of the processing program.

In addition, the light emitted by one of the light-emitting elements is corrected as a skin color, which improves the accuracy of tumor determination.

In addition, the plurality of light sensing elements are disposed at a central range of the light emitting elements, and the sensing signals of the light sensing elements can further improve the accuracy as a basis for determining the tumor, and the light sensing elements are disposed on the light sensing elements. The central range of the illuminating elements also simplifies the signal processing.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

1. . . External tumor detection module

11. . . Processing unit

12. . . Light-emitting element

13, 13a ~ 13d. . . Light sensing component

14. . . Signal transmission unit

15. . . Filter

16. . . Power supply unit

17. . . Control button

18. . . case

E. . . Electronic device

T. . . Tumor

1 is a schematic diagram of the appearance of an external tumor detecting module according to a preferred embodiment of the present invention;

2 is a block diagram of an external tumor detecting module;

3 and 4 are schematic diagrams showing the use of an external tumor detecting module in conjunction with an electronic device;

FIG. 5 is a schematic enlarged plan view of the external tumor detecting module; FIG.

6 and FIG. 7 are schematic diagrams showing that the light-emitting element emits light, the light is diffracted through the tissue, and is received by the light-sensing element;

FIG. 8 is a schematic diagram of the operation of the user holding the external tumor detecting module for detecting;

9 is a waveform diagram of a sensing signal;

Figure 10 is a schematic view showing the arrangement of two light sensing elements and light emitting elements;

11A and FIG. 11B are waveform diagrams of sensing signals sensed by the two photo sensing elements of FIG. 10;

Figure 12 is a waveform diagram of processing signals;

Figure 13 is a schematic view showing the arrangement of four light sensing elements and light emitting elements;

14A to 14C are schematic views of the aspect of Fig. 13 for tumor detection.

1. . . External tumor detection module

11. . . Processing unit

12. . . Light-emitting element

13. . . Light sensing component

14. . . Signal transmission unit

15. . . Filter

17. . . Control button

18. . . case

Claims (13)

An external tumor detecting module detects whether a tissue has a tumor and cooperates with an electronic device, comprising: a plurality of light-emitting elements that emit a light in turn through the tissue; at least two light sensing elements, adjacent The light-emitting elements are disposed substantially at the center of the at least two light-sensing elements, the light-sensing elements absorbing the diffracted rays and correspondingly generating a plurality of sensing signals, wherein any two of the light-emitting elements are separated by x centimeters The horizontal distance, the light sensing element is separated from one of the light emitting elements by a horizontal distance of one ycm, wherein x and y satisfy x a relationship of 0.1*y; a signal transmission unit transmits the sensing signals to the electronic device, so that the electronic device can generate a function signal according to the sensing signals, and correspondingly generate a complex processing signal, and according to the The processing unit determines whether the tissue has a tumor, and a processing unit is electrically connected to the light-emitting elements, the light-sensing element, and the signal transmission unit. The external tumor detection module of claim 1, wherein the signal transmission unit is a wireless transmission unit or a wired transmission unit. The external tumor detection module of claim 1, wherein the signal transmission unit comprises a connector, and the connector is exposed to the external tumor detection module. For example, the external tumor detection module described in claim 1 of the patent application includes: A housing accommodating the light-emitting elements, the light-sensing element, the signal transmission unit, and the processing unit. The external tumor detection module of claim 1, further comprising: a processing program for determining whether the tissue has a tumor based on the sensing signals. The external tumor detecting module according to claim 5, wherein the processing program is stored in a CD, a memory or a server. For example, in the external tumor detection module described in claim 1, wherein the y system is less than 3 cm. The external tumor detecting module according to claim 1, wherein the light emitted by one of the light emitting elements is corrected as a skin color. The external tumor detecting module according to claim 1, wherein when the portable tumor detecting device has a plurality of light sensing elements, the light emitting elements are substantially located at the center of the light sensing elements The light sensing elements respectively absorb the diffracted rays to generate the sensing signals. The external tumor detection module according to claim 1, wherein the wavelengths emitted by the light-emitting elements correspond to at least one of deoxyhemoglobin, total blood volume, oxygenated hemoglobin, water, and fat. The second parameter. For example, the external tumor detection module described in claim 1 is Furthermore, a filter is disposed on the light path of the light-emitting elements. The external tumor detection module of claim 1, further comprising: a power supply unit electrically connected to the processing unit, at least one control button electrically connected to the processing unit as the power supply Unit switch. The external tumor detecting module according to claim 1, wherein when the external tumor detecting module is in a dark current operation mode, the light emitting elements do not emit light, and the light sensing element The ambient light is sensed to generate an environmental sensing signal, and the electronic device corrects the sensing signals by the ambient sensing signal.