Abstract:
The present invention relates to a breast health care device, which comprises: a main body, which comprises at least one cover portion; and at least one node module, which is disposed on the cover portion. The node module comprises a light-emitting unit, a photo detector, or the combination thereof, wherein the light-emitting unit provides a light of predetermined wavelength to a breast tissue, and the photo detector detects a first signal generated from the breast tissue. Thus, users can directly achieve detection for the health condition of breasts by wearing the bra of the disclosed breast health care device of the present invention, and the disclosed health care device can transmit the detection results to an external health-care platform such as hospitals or medical centers immediately.

Description:
CROSS REFERENCE TO RELATED APPLICATION 
       [0001]    This application claims the benefit of filing date of U.S. Provisional Application Ser. No. 61/434,863, entitled “Breast Health-Care Device” filed Jan. 21, 2011 under 35 USC §119(e)(1). 
     
    
       [0002]    This application also claims the benefits of the Taiwan Patent Application Serial Number 100136159, 100136160, 100136161, filed on Oct. 5, 2011, the subject matters of which are incorporated herein by reference. 
       BACKGROUND OF THE INVENTION 
       [0003]    1. Field of the Invention 
         [0004]    The present invention relates to a breast health care device and, more particularly, to a breast health care device using near infrared red light. Hence, the users can examine breast tissues periodically to prevent delay in seeking medical care for pathological changes of breasts. 
         [0005]    2. Description of Related Art 
         [0006]    Breasts are important to a woman&#39;s femininity. Many women do not seek medical advice regarding breast issues due to shyness. The importance of effective regular breast examination is usually neglected. Familiar breast diseases comprise: cystic fibrosis, fibroadenoma, intraductal papilloma, breast inflammation, and breast cancer. Other factors such as obesity, fatty food uptake, or radiation in the environment may also increase the risk. The prevention of breast diseases can be improved by effective regular breast self-exam (BSE) to check whether any unusual condition is revealed. In addition, if the excess intake of female hormone drugs is avoided and the contact to the cleanser is reduced, the possibility of suffering from breast diseased can be prevented. 
         [0007]    According to the statistics from Department of Health in Taiwan, the incidence and the mortality of breast cancer are increasing year by year. In addition, the ages of the patients are decreasing. These data indicate the need for effective regular screening tool for breast health even at younger age. 
         [0008]    There are many methods for checking the health condition of breasts, such as breast self-exam (BSE), palpation, ultrasound examination, breast X-ray mammography and magnetic resonance imaging. However, breast X-ray mammography is discomfort as extreme compression of breast tissue is required. Besides, breast tissues of Asians have higher contents of fibers and usually smaller size, render problematic interpretation of test results and the detection rate. Many women are afraid of palpation and refuse to go to doctors for examination, so breast self-exam (BSE) is performed at home to check the health condition of breasts. However, the lack of essential professional techniques and physical examine background limit the chance of early discovery of unusual breast conditions by patients themselves. 
         [0009]    In order to solve the difficulties inherent in the current methods of examination of healthy breasts, the present invention provides a stand-alone BSE assisting device, which is suitable for home care. Hence, ordinary people can check the health condition of breasts regularly. Even though the users do not have professional medical knowledge, they can still perform breast self-exam to check the health condition of their breasts with this device. Hence, women may be willing to perform breast examination regularly, so the purpose of discovery and treatment of breast diseases in early stages may be accomplished. Therefore, the death rate attributed to breast diseases can further be decreased. 
       SUMMARY OF THE INVENTION 
       [0010]    The object of the present invention is to provide a breast health care device, which is capable of detecting changes in breast tissues with near-infrared light. Since the breast health care device of the present invention is designed into female underwear structure, the users can easily examine the health of their breast tissues by themselves and obtain primary detection results. 
         [0011]    To achieve the object, the present invention provides several preferred aspects of breast health care devices. A first preferred aspect of the breast health care device of the present invention comprises: a main body comprising at least one cover portion, wherein the cover portion may have a bra cup structure; and at least one node module disposed on the cover portion, wherein the node module comprises: a light-emitting unit, a photo detector, or a combination thereof. The light-emitting unit provides a light with a predetermined wavelength to breast tissues, and the photo detector detects a first signal generated from the breast tissues. Herein, the first signal can be a photo signal or light intensity. 
         [0012]    According to the aforementioned first aspect of the breast health care device of the present invention, the light-emitting unit may be a light emitting diode, a laser light-emitting unit, or a combination thereof. The light-emitting unit can emit light of different wavelengths and different intensities. Preferably, the light-emitting unit emits light with different intensities and with wavelengths located in the near-infrared region. Preferably, the intensities of the light are in the range of 5 mW/cm 2  to 25 mW/cm 2 . Hence, the breast health care device can detect various breast tissues, from superficial breast tissues, mesoderm breast tissues, to deeper breast tissues, and therefore a better resolution can be obtained. The positions of the node modules disposed on the main body are designed based on the breast structure, in order to detect the optical changes of the breast tissues at each position. In addition, in order to enhance the detection effect, 10-50 node modules may be disposed on each cover portion based on the individuals&#39; breast structure. Preferably, 25-50 node modules are disposed on each cover portion. Furthermore, the node module may further comprise a housing to protect the light-emitting unit, the photo detector such as a phototransistor, or a combination thereof. 
         [0013]    The aforementioned first preferred aspect of the breast health care device may further comprise at least one processor, which processes the first signal detected by the photo detector to obtain a second signal. The processor comprises an optical simulation unit such as a Monte Carlo unit to calculate the first signal to obtain the second signal. Herein, the second signal may be a photo signal or an electronic signal, and preferably an electronic signal. 
         [0014]    The aforementioned first preferred aspect of the breast health care device may further comprise an information storage module, a signal-transmitting module, or a combination thereof, wherein the information storage module stores the second signal. The signal-transmitting module transmits the second signal. Herein, the signal-transmitting module can transmit the second signal through cable transmission or wireless transmission. The signal-transmitting module may communicate with electronic devices such as smart-phones when these two kinds of transmission are used. Hence, the second signal can be transmitted to the health care platform through the internet to establish a database. Therefore, medical professionals may follow the health conditions of patients with high risk. 
         [0015]    In order to make the node modules of the aforementioned first preferred aspect of the breast health care device contact the breast tissues closely, the breast health care device may further comprise a suction unit, an attaching unit, or a combination thereof, wherein the suction unit connects to the node module through a pipe to exhaust gas inside the node module, and the attaching unit is disposed on the node module. The material of the attaching unit may be rubber. Hence, the node module may closely contact the breast tissue. Herein, the suction unit may be an electronic pump or a micro-solenoid valve. Alternatively, the gas inside the node module may be exhausted manually. 
         [0016]    Furthermore, the aforementioned first preferred aspect of the breast health care device may further comprise a power supply module, which can provide power to each component of the breast health care device. Therefore, a stand-alone and a portable device can be accomplished. 
         [0017]    The aforementioned first preferred aspect of the breast health care device may be customized as female underwear according to the different requirements. Hence, the outmost surface of the main body may be a waterproof surface, so the female underwear can be cleaned several times. In addition, when the node module of the present invention comprise both the light-emitting unit and the photo detector, the material of the female underwear can be any material which can absorb infrared light, UV light or visible light, and preferably is bamboo charcoal fiber. Hence, the material can reduce the interference from other lights near the node module. Therefore, not only can detection be performed on the two sides of the main body of the female underwear, but also the detection effect can further be improved. 
         [0018]    A second preferred aspect of the breast health care device of the present invention comprises: a main body comprising at least one cover portion, wherein the cover portion may have a bra cup structure; at least one light-emitting unit disposed on the main body, wherein the light-emitting unit provides a light with predetermined wavelength to breast tissues; and at least one node module disposed on the cover portion, wherein the node module comprises: a photo detector, a light-emitting element, or a combination thereof, wherein the light-emitting element can be an optical fiber for transmitting light with predetermined wavelengths to the breast tissues, the photo detector can be a phototransistor to detect a first signal generated from the breast tissues. Herein, the first signal can be a photo signal or light intensity. 
         [0019]    According to the aforementioned second aspect of the breast health care device of the present invention, the light-emitting unit may be a light emitting diode, a laser light-emitting unit, or a combination thereof. The light-emitting unit can emit light with at least one predetermined wavelength to detect breast tissues. Herein, the light-emitting unit can be designed as a rotative light-emitting unit, or a linear reciprocating light-emitting unit. When the light-emitting unit is a rotative light-emitting unit, original: light-emitting heads may surround the rotative light-emitting unit. Hence, the rotative light-emitting unit may correspond to different light transmitting units at different time points, so light can be emitted to each different node module sequentially. When the light-emitting unit is a linear reciprocating light-emitting unit, the light with different wavelengths may be transmitted to different light-emitting element according to the predetermined time sequence, to transmit the light to different node modules. With regard to the wavelength and the intensity of the light emitting from the light-emitting unit, the wavelength thereof is preferably located within the near-infrared region, and the intensity thereof is preferably in the range of 5 mW/cm 2  to 25 mW/cm 2 . In addition, when the light with different intensities and wavelengths illuminates to the breast tissues corresponding to the node module, the effect on the detection of breast tissues can further be improved. 
         [0020]    According to the aforementioned second aspect of the breast health care device of the present invention, the positions of the node modules disposed on the main body are designed based on the breast structure, in order to detect the optical changes of the breast tissues on each position. In addition, in order to enhance the detection effect, 10-50 node modules may be disposed on each cover portion based on the individuals&#39; breast structure. Preferably, 25-50 node modules are disposed on each cover portion. Furthermore, the node module may further comprise a housing to protect the photo detector, the light-emitting element, or a combination thereof, wherein the light-emitting unit may be an optical fiber, and the photo detector may be a phototransistor. 
         [0021]    The aforementioned second preferred aspect of the breast health care device may further comprise at least one processor, which processes the first signal detected by the photo detector to obtain a second signal. The processor comprises an optical simulation method such as a Monte Carlo unit, to calculate the first signal to obtain the second signal. Herein, the second signal may be a photo signal or an electronic signal, and preferably an electronic signal. 
         [0022]    The aforementioned second preferred aspect of the breast health care device may further comprise an information storage module, a signal-transmitting module, or a combination thereof to store the second signal and transmit the second signal to a health care platform for follow up. In addition, the breast health care device may further comprise a suction unit, an attaching unit, or a combination thereof to enhance the effect on the detection of the breast health care device. The configurations of the suction unit and the attaching unit are the same as the aforementioned device. Furthermore, the second preferred aspect of the breast health care device may be customized as female underwear according to different requirements. The material of the surface of the cover portion and the cover portion itself can be waterproof material and a material that can absorb infrared light, UV light or visible light, in order to clean the breast health care device and improve the detection effect thereof. In addition, the breast health care device may further comprise a power supply module, which can provide power to each component of the breast health care device. Therefore, a portable device can be accomplished. 
         [0023]    In order to simplify the structure of the breast health care device of the present invention, a third preferred aspect of the breast health care device is also provided, which integrates the light-emitting unit and the photo detector. The third preferred aspect of the breast health care device comprises: a main body comprising at least one cover portion, wherein the cover portion may have a bra cup structure; a light-emitting/detecting unit disposed on the main body, wherein the light-emitting/detecting unit provides light with a predetermined wavelength to breast tissues and detects a first signal generated from the breast tissues, and the first signal can be a photo signal or light intensity; and at least one node module disposed on the cover portion, wherein the node module comprises: a light transmitting unit, a photo signal transmitting unit, or a combination thereof, wherein the light transmitting unit transmits light with a predetermined wavelength to the breast tissues, and the photo signal transmitting unit transmits the first signal to the light-emitting/detecting unit. 
         [0024]    According to the aforementioned third aspect of the breast health care device of the present invention, the light-emitting/detecting unit may be a rotative light-emitting/detecting unit or a linear reciprocating light-emitting/detecting unit. When the light-emitting/detecting unit is a rotative light-emitting/detecting unit, light-emitting heads may surround the rotative light-emitting/detecting unit. Hence, when the rotative light-emitting/detecting unit rotates, light can transmit to different node modules through the light-transmitting unit at different time points, and then the first signal generated from the breast tissues may transmit back to a photo detector of the light-emitting/detecting unit through the photo signal-transmitting unit of the node module. After the aforementioned process, the detection is completed. When the light-emitting/detecting unit is a linear reciprocating light-emitting/detecting unit that is different from the rotative light-emitting/detecting unit, the light-emitting units are linearly arranged. Hence, when the light-emitting units move linearly, light with different wavelengths may be transmitted to different light-transmitting units according to the time sequence setting, transmitting light to different node modules. Then, the first signal generated from the breast tissues may transmit back to the linear reciprocating light-emitting/detecting unit through the photo signal-transmitting unit of the node module to complete the detection. The light-emitting unit of the light-emitting/detecting unit is a light emitting diode, a laser light-emitting unit, or a combination thereof, which can emit light with at least one predetermined wavelength, and the wavelength thereof is preferably located within the near-infrared region. The light emitting diode may further emit light with different intensities, which are preferably in the range of 5 mW/cm 2  to  25  mW/cm 2 . When the light with different intensities and wavelengths illuminates to the breast tissues, the detection may be performed on the breast tissues at different depths on the breast tissues to improve the detection effect of the breast health care device. 
         [0025]    According to the aforementioned third aspect of the breast health care device of the present invention, at least one of the light-transmitting units and the photo signal-transmitting units is an optical fiber. When the detection is performed, the light-transmitting unit is used to transmit light emitting from the light-emitting/detecting unit to the node module, and the photo signal-transmitting unit is used to transmit the first signal generated from the breast tissues back to the light-emitting/detecting unit. 
         [0026]    The aforementioned third preferred aspect of the breast health care device may further comprise at least one processor, which processes the first signal detected by the light-emitting/detecting unit to obtain a second signal. The processor comprises an optical simulation unit such as a Monte Carlo unit, to calculate the first signal to obtain the second signal. Herein, the second signal may be a photo signal or an electronic signal, and preferably an electronic signal. 
         [0027]    In addition, the aforementioned third preferred aspect of the breast health care device may further comprise an information storage module, a signal-transmitting module, or a combination thereof, which can store the second signal and transmit the second signal to a health care platform to establish a database for follow up. In addition, the aforementioned third preferred aspect of the breast health care device may further comprise a suction unit, an attaching unit, or a combination thereof, which can enhance the attachment between the node module and the breast tissues to improve the detection effect of the breast health care device. Furthermore, the third preferred aspect of the breast health care device may be customized as female underwear according to different requirements. The material of the surface of the cover portion and the cover portion itself can be a waterproof material for easy cleaning and a material that can absorb infrared light, UV light or visible light. Finally, the breast health care device may further comprise a power supply module, which can provide power to each component of the breast health care device. The aforementioned components may be the same as those described above. 
         [0028]    In conclusion, the breast health care device of the present invention can abolish the pain and the inconvenience when women perform breast examinations. The breast health care device of the present invention is designed as female underwear. When users wear the breast health care device with a bra structure, the primary health condition of the breast can be determined through the change of optical characteristics. In addition, the detection results can be transmitted to computers or health care platforms through the processor and the signal-transmitting module. Through the use of this device, the convenience for the detection of the breast health condition can be improved. Furthermore, light with wavelengths in the near infrared red region is used to detect the breast tissues in the breast health care device of the present invention, so the effect of enhancing blood circulation can also be accomplished. Moreover, when the light-emitting unit of the breast health care device of the present invention is a rotative light-emitting unit, light with different colors may also be combined therein to obtain a varied visual effect. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0029]      FIG. 1  is a perspective view of a breast health care device of Embodiment 1 of the present invention; 
           [0030]      FIG. 2  is a cross-sectional view of a breast health care device of Embodiment 1 of the present invention; 
           [0031]      FIG. 3  is a perspective view showing the structure of a node module of Embodiment 1 of the present invention; 
           [0032]      FIG. 4  is a perspective view showing the structure of a node module of Embodiment 1 of the present invention; 
           [0033]      FIG. 5  is a perspective view showing the structure of a node module of Embodiment 2 of the present invention; 
           [0034]      FIG. 6  is a perspective view of a breast health care device of Embodiment 3 of the present invention; 
           [0035]      FIG. 7  is a cross-sectional view of a breast health care device of Embodiment 3 of the present invention; 
           [0036]      FIG. 8  is a perspective view showing the structure of a node module of Embodiment 3 of the present invention; 
           [0037]      FIG. 9  is a perspective view showing the structure of a rotative light-emitting unit of Embodiment 3 of the present invention; 
           [0038]      FIG. 10  is a perspective view of a breast health care device of Embodiment 4 of the present invention; 
           [0039]      FIG. 11  is a perspective view showing the structure of a node module of Embodiment 4 of the present invention; 
           [0040]      FIG. 12  is a perspective view showing the structure of a linear reciprocating light-emitting unit of Embodiment 4 of the present invention; 
           [0041]      FIG. 13  is a perspective view of a breast health care device of Embodiment 4 of the present invention; 
           [0042]      FIG. 14  is a perspective view showing the structure of a node module of Embodiment 5 of the present invention; 
           [0043]      FIG. 15  is a perspective view showing the structure of a rotative light-emitting/detecting unit of Embodiment 5 of the present invention; 
           [0044]      FIG. 16  is a perspective view showing the structure of a rotative light-emitting/detecting unit of Embodiment 6 of the present invention; and 
           [0045]      FIG. 17  is a perspective view showing the structure of a linear reciprocating light-emitting/detecting unit of Embodiment 7 of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0046]    The present invention has been described in an illustrative manner, and it is to be understood that the terminology used is intended to be in the nature of description rather than of limitation. Many modifications and variations of the present invention are possible in light of the above teachings. Therefore, it is to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described. 
       Embodiment 1 
       [0047]    As shown in  FIGS. 1-4 , the breast health care device of the present embodiment comprises: a main body  11  comprising two cover portions  111 , wherein the cover portions  111  have bra cup structures. Eighteen node modules  12  are respectively disposed on the right and the left cover portion  111 . 
         [0048]    In the present embodiment, the structures of the node modules  12  are classified into two types. One type of node module  12  is a node module only provided with a light-emitting unit  121  (as shown in  FIG. 3 ), and the other type is a node module only provided with a photo detector  122  (as shown in  FIG. 4 ). The light-emitting unit  121  provides a light with predetermined wavelength to breast tissues, and the photo detector  122  detects a first signal generated from the breast tissues. Herein, the first signal is a light intensity. 
         [0049]    As shown in  FIG. 1 , the breast health care device of the present embodiment comprises a processor  13 , an information storage module  14  and a signal-transmitting module  15 . The processor  13  processes the first signal detected by the photo detector of the node module  12 , and then the first signal is calculated with a Monte Carlo unit to obtain a second signal. Herein, the second signal is an electronic signal. In addition, the information storage module  14  stores the aforementioned second signal, and the signal-transmitting module  15  only transmits the second signal. In the present embodiment, the signal-transmitting module  15  transmits the second signal through wireless transmission. Hence, the signal-transmitting module  15  transmits the processed signal to an electronic device through an antenna  18 . Then, the signal is sequentially transmitted to a health care platform through the internet to establish a database, so medical professionals may follow the health conditions of patients with high risk. 
         [0050]      FIG. 2  is a cross-sectional view of a breast health care device of the present embodiment. As shown in  FIG. 2 , the node modules  12  with the light-emitting unit, and the node modules  12  with the photo detector are uniformly dispersed on the cover portion  111 . The first signal generated from the breast tissues may be accepted by the surrounding photo detector of the node module  12 , so the detection of the breast health care device can be accomplished. 
         [0051]      FIG. 3  shows the node module  12  provided with a light-emitting unit  121 , wherein the light-emitting unit  121  is a light emitting diode (LED). The wavelength of the LED is located in the near-infrared region, and the intensity thereof is in the range of 5 mW/cm 2  to 25 mW/cm 2 . In addition, the wavelength and the intensity thereof can be modified based on the detection requirement. The node module  12  is provided with a housing  123 , and the light-emitting unit  121  is disposed in the housing  123 . In addition, the node module  12  is provided with a suction unit  16  and an attaching unit  17 . The suction unit  12  removes gas inside the housing  123  through a pipe, and the node module  12  closely contacts the breast tissue through the attaching unit  16 . Herein, the suction unit  16  is an electronic pump, and the material of the attaching unit  17  is rubber. 
         [0052]      FIG. 4  shows a node module  12  provided with a photo detector  122 , wherein the photo detector  122  is a phototransistor. The node module  12  is also provided with a housing  123 , and the photo detector  122  is disposed in the housing  123 . In addition, the node module  12  is also provided with a suction unit  16  and an attaching unit  17 . The suction unit  12  removes gas inside the housing  123  through a pipe, and the node module  12  closely contacts the breast tissue through the attaching unit  16 . Herein, the suction unit  16  is a micro-solenoid valve, and the material of the attaching unit  17  is rubber. 
         [0053]    Furthermore, the breast health care device of the present embodiment is provided with a power supply (not shown in the figure) to provide power to each component of the breast health care device. Therefore, a stand-alone and portable device can be accomplished. 
         [0054]    In order to use conveniently, the breast health care device of the present invention is designed as female underwear. The outmost surface of the main body may be a waterproof surface, so the female underwear can be cleaned several times without destroying the inner components of the breast health care device. In addition, the material of the cover portion of the breast health care device of the present embodiment is bamboo charcoal fiber, which has light absorption properties. Hence, the material can reduce the interference from other lights near the node module. The breast health care device of the present embodiment can detect two sides of the breast tissues at the same time, so the time for detection can be decreased further. 
       Embodiment 2 
       [0055]    The structure of the breast health care device of the present embodiment is almost the same as that disclosed in Embodiment 1, except that the structure of the node module  12  is different.  FIG. 5  is a perspective view showing the structure of a node module of the present embodiment. The node module of the present embodiment comprises a light-emitting unit  121  (LED), a photo detector  122 , and a housing  123 . In addition, the node module also comprises a suction unit  16  and an attaching unit  17 . 
         [0056]    In the present embodiment, the light-emitting unit  121  and the photo detector  122  are integrated into a node module  122 . Hence, when the light-emitting unit  122  emits near infrared light with different wavelengths and different intensities (5 mW/cm 2  to 25 mW/cm 2 ), the photo detector  122  can detect the first signal generated from the breast tissues, which correspond to this node module  121 . 
       Embodiment 3 
       [0057]    As shown in  FIGS. 6-8 , the breast health care device of the present embodiment comprises: a main body  21  comprising at least one cover portion  211 , wherein the cover portions  211  have bra cup structures; a light-emitting unit  22  disposed on the center of the main body  21 , wherein the light-emitting unit  22  provides light with a predetermined wavelength to breast tissues; and forty node modules  23  disposed on the cover portions  211  on two sides, wherein the node module  23  comprises a photo detector  231  and a light-transmitting unit  232 , as shown in  FIG. 8 . The light-transmitting unit  232  transmits the light emitting from the light-emitting unit  22 , and the photo detector  231  detects a first signal generated from the breast tissues. Herein, the first signal is light intensity. 
         [0058]    As shown in  FIG. 6 , the breast health care device of the present embodiment comprises a processor  24 , an information storage module  25  and a signal-transmitting module  26 . The processor  24  processes the first signal detected by the photo detector  231  of the node module  12 , and then the first signal is calculated with a Monte Carlo unit to obtain a second signal. Herein, the second signal is an electronic signal. In addition, the information storage module  25  stores the second signal, and the signal-transmitting module  26  transmits the second signal. In the present embodiment, the signal-transmitting module  15  transmits the second signal through cable transmission. Hence, the signal-transmitting module  15  transmits the processed signal to a smartphone through USB. Then, the signal is sequentially transmitted to a health care platform through the internet to establish a database. 
         [0059]      FIG. 7  is a cross-sectional view of a breast health care device of the present embodiment. As shown in  FIG. 7 , the positions of the node modules  23  are designed according to the individuals breast structure, so a personal detection on the breast tissue can be accomplished. 
         [0060]      FIG. 8  is a perspective view showing the structure of a node module  23  of the present embodiment. The node module  23  comprises the photo detector  231  and the light-transmitting unit  232  disposed in the housing  233 . The photo detector  231  is a phototransistor, and the light-transmitting unit  232  is an optical fiber. In addition, the node module  23  is also provided with a suction unit  27  and an attaching unit  28 . The suction unit  27  removes gas inside the housing  233  through a pipe, and the node module  23  closely contacts the breast tissue through the attaching unit  28 . Herein, the suction unit  27  is an electronic pump, and the material of the attaching unit  28  is rubber. 
         [0061]      FIG. 9  is a perspective view showing the structure of the light-emitting unit of the present embodiment 3. The light-emitting unit of the present embodiment is a rotative light-emitting unit, which comprises a light emitting diode (LED)  221 , a first lens  222 , a light-transmitting unit  223  being an optical fiber in the present embodiment, a second lens  225 , and a rotating unit  225 . The light emitting diode  221  can emit lights with different wavelengths and intensities. When the light emitting diode  221  emits light, the light is focused through the first lens  222  and enters into the light-transmitting unit  223 . Next, the light-transmitting unit  223  transmits the focused light to the second lens  224  to perform another focus process, and then the focused light enters into the optical fiber  232 . The rotating unit  225  of the rotative light-emitting unit can change the positions of the light-transmitting unit  223  and the second lens  224 , to make the light transmitting to different node modules  23 . Herein, the light emitting from the light emitting diode  221  can pass through the first lens  222 , the light-transmitting unit  223  and the second  224  rotating unit  225  and sequentially arrive to each different node module  23  based on the time sequence setting for controlling the rotating unit  225  of the rotative light-emitting unit. 
         [0062]    In addition, the breast health care device of the present embodiment is provided with a power supply (not shown in the figure), which is disposed on the buckle of the breast health care device. Herein, the battery used in the power supply can be a lithium secondary battery, in order to reduce the weight of the device of the present embodiment. In addition, the breast health care device of the present invention is designed as female underwear, and the material thereof is a waterproof material and bamboo charcoal fibers. Hence, not only can the device of the present embodiment be cleaned several times, the detection effect thereof can be further improved. 
       Embodiment 4 
       [0063]    The structure of the breast health care device of the present embodiment is almost the same as that disclosed in Embodiment 1, except that the structures of the node module and the light-emitting unit are different from those disclosed in Embodiment 3. 
         [0064]    As shown in  FIGS. 10-11 , the structure of the node module of the present embodiment is almost the same as that of Embodiment 3, except that the device of the present embodiment comprises two types of node modules, wherein one type of node module  23  is a node module only provided with a light-emitting unit  232  (fiber) and without a photo detector (as shown in  FIG. 11 ), and the other type is a node module  29  only provided with a photo detector (as shown in  FIG. 10 ). The node module  29  can detect a first signal generated from the breast tissues surrounding the node module  23 , to accomplish the purpose of the detection. Herein, the first signal is a photo signal. 
         [0065]    In addition, as shown in  FIG. 12 , the light-emitting unit of the present embodiment is a linear reciprocating light-emitting unit, which comprises a motor  225 , two light emitting units (LED)  221 , and light-transmitting element  232  such as optical fibers. Herein, the motor  225  is used to drive the light-emitting units  221  to make the light-emitting unit move linearly and reciprocatingly, so the light emitting from the light-emitting units  221  can arrive to each different node module through the light-transmitting units  232 . In the linear reciprocating light-emitting unit of the present embodiment, the light with different wavelengths and intensities generated from the light-emitting units  221  can transmit to each different node module based on the setting of the time sequence. 
       Embodiment 5 
       [0066]    As shown in  FIGS. 13-15 , the breast health care device of the present embodiment comprises: a main body  31  comprising at least one cover portion  311 , wherein the cover portions  311  have bra cup structures; a light-emitting/detecting unit  32  disposed on the center of the main body  31 , wherein the light-emitting/detecting unit  32  provides light with a predetermined wavelength to breast tissues and detects a first signal (i.e. light intensity) generated from the breast tissues; and at least one node module  33  disposed on the cover portion  331 , wherein the node module  33  comprises a light-transmitting unit  331  and a photo signal-transmitting unit  332 . The light-transmitting unit  331  transmits light with a predetermined wavelength to the breast tissues, and the photo signal-transmitting unit  332  transmits the first signal to the light-emitting/detecting unit  32  to accomplish the purpose of breast detection. 
         [0067]    As shown in  FIG. 13 , the breast health care device of the present embodiment comprises a processor  34 , an information storage module  35  and a signal-transmitting module  35 . The processor  34  processes the first signal detected by the light-emitting/detecting unit  32 , and then the first signal is calculated with a Monte Carlo unit to obtain a second signal such as an electronic signal. In addition, the information storage module  35  stores the aforementioned second signal, and the signal-transmitting module  36  transmits the second signal. In the present embodiment, the second signal is transmitted to a smart-phone through wireless transmission, and the signal is sequentially transmitted to a health care platform through the internet to establish a database. In addition, the breast health care device of the present embodiment is provided with a power supply  39  to provide power to each component of the breast health care device. Therefore, a portable device can be accomplished. 
         [0068]      FIG. 14  is a perspective view showing the structure of a node module of Embodiment 5 of the present invention. As shown in  FIG. 14 , the node module  33  comprises: a light-transmitting unit  331 , a photo signal-transmitting unit  332 , and a housing  333 . Herein, the light-transmitting unit  331  and the photo signal-transmitting unit  332  are optical fibers. The light-transmitting unit  331  transmits the light generated from the light-emitting/detecting unit  32  to the node module  33 , and the photo signal-transmitting unit  332  transmits the light generated from the breast tissues back to the light-emitting/detecting unit  32 , to perform the detection. In addition, the node module  33  is also provided with a suction unit  37  and an attaching unit  38 . The suction unit  37  removes gas inside the housing  333  through a pipe, and the node module  33  closely contacts the breast tissue through the attaching unit  38 . In the present embodiment, the suction unit  37  is an electronic pump, and the material of the attaching unit  38  is silica gel. 
         [0069]      FIG. 15  is a perspective view showing the structure of a rotative light-emitting/detecting unit of Embodiment 5 of the present invention. As shown in  FIG. 15 , the light-emitting/detecting unit of the present embodiment is a rotative light-emitting/detecting unit  32 , which comprises a light-emitting unit  321  and a photo detector  322 . Herein, the light-emitting unit  321  and the photo detector  322  connect to the light-emitting/detecting unit  32  to transmit or receive photo signals. 
         [0070]    The rotative light-emitting/detecting unit  32  of the present embodiment comprises fourteen light-emitting units  321  such as LEDs and plural photo detectors  322  such as phototransistors. Herein, seven light-emitting units  321  are arranged linearly. On the left side and the right side are disposed a set of light-emitting units  321  with different wavelengths and intensities, and each light-emitting unit  321  corresponds to a different light-transmitting unit  331  such as an optical fiber. Then, the light is transmitted to each node module  33  through the light-transmitting unit  331 . Herein, each photo detector  322  is respectively disposed between the light-emitting units  321 , and the first signal generated from the breast tissues corresponding to the node module  33  is transmitted through the photo signal-transmitting unit  332  to finish the detection. In order to detect accurately, each light-emitting unit  321  emits light with different wavelengths and intensities to detect the breast tissues at different depths. 
         [0071]    The rotative light-emitting/detecting unit  32  of the present invention can continuously emit light located in the near infrared region with predetermined wavelengths and intensities. The wavelengths of the light are located in the region from 320 nm to 500 nm and from 650 nm to 1200 nm, and the intensities thereof are in the range of 5 mW/cm 2  to 25 mW/cm 2 . Herein, when the motor (not shown in the figure) starts the light-emitting/detecting unit  32  rotating, each node module  33  can receive near infrared red light with several wavelengths. Herein, the left and the right breasts are respectively irradiated with near infrared red light having wavelengths of 680 nm, 760 nm, 805 nm, 850 nm, 910 nm, 970 nm, and 1010 nm. Then, the node module  33  can collect the first signals generated from the breast tissue, and the first signals are transmitted to the photo detector  332  through the photo signal-transmitting unit  332 . In the present embodiment, the device can receive the optical characteristics from the position of each node module, to obtain entire photo signals. 
         [0072]    In order to improve the detection effect, the material of the cover portion  311  is bamboo charcoal fibers, which has the properties of absorbing the secondary reflection. Hence, the interference from incidental light penetrating through the skin and generating a secondary reflection can be reduced. In addition, the breast health care device of the present invention is designed as female underwear, and the outmost surface of the main body may be a waterproof surface. Hence, the device can be cleaned several times. 
       Embodiment 6 
       [0073]    The structure of the breast health care device of the present embodiment is almost the same as that disclosed in Embodiment 5, except that the structure of the light-emitting/detecting unit of the present embodiment is different from that of Embodiment 5. 
         [0074]      FIG. 15  is a perspective view showing the structure of a rotative light-emitting/detecting unit of Embodiment 6 of the present invention. As shown in  FIG. 15 , the rotative light-emitting/detecting unit of the present embodiment comprises fourteen light-emitting units  321  such as LEDs, and plural light-transmitting units  331  such as optical fibers and photo signal-transmitting units  332 . Herein, seven light-emitting units  321  and heat dispensing modules (not shown in the figure) are arranged side by side, and the light is transmitted to each node module  33  through optical fibers  323 . The disposition of the other seven light-emitting units  321  and the heat dispensing modules (not shown in the figure) are arranged in the same way. 
         [0075]    When the light-transmitting units  331  of the light-emitting/detecting unit  32  transmit the light to the node modules  33 , the first signals (i.e. the light intensities) generated from the breast tissues may transmit back to the light-emitting/detecting unit  32  through the photo signal-transmitting units  332 , and the detection can be accomplished by the photo detector  322 . 
       Embodiment 7 
       [0076]    The present embodiment is almost the same as Embodiment 5, except that the structure of the light-emitting/detecting unit is different. In the present embodiment, the light-emitting/detecting unit is a linear reciprocating light-emitting/detecting unit  32 . As shown in  FIG. 16 , the linear reciprocating light-emitting/detecting unit  32  comprises a motor  324 , fourteen light-emitting units  321  such as LEDs, a light-emitting focusing lens set  325 , plural photo detectors  322  and a photo-detecting focusing lens set (not shown in the figure). Herein, the light-emitting units  321  are combined with a heat dispersing set (not shown in the figure), and seven light-emitting units  321  and the heat dispensing set (not shown in the figure) are arranged side by side. The light is transmitted to the light-emitting units  331  such as optical fibers through the seven optical fibers  323  and the light-emitting focusing lens set  325 , and then the light is transmitted to each node module. Finally, the first signal generated from the breast tissues may be transmitted to the photo-detecting focusing lens set (not shown in the figure) through the photo signal-transmitting units  332  of each node module, and the photo detector  322  may detect the first signal. 
         [0077]    According to the linear reciprocating light-emitting/detecting unit  32  of the present embodiment, light with different wavelengths and intensities can be transmitted to each light-transmitting unit  331  based on the setting of a time sequence. For example, the light-emitting focusing lens set  325  may move to the next light-transmitting unit  331  at a predetermined time, to transmit light to the node module. 
         [0078]    When the linear reciprocating light-emitting/detecting unit  32  is driven by a motor  324 , the motor  324  may drive the light-emitting units  321  and the light-emitting focusing lens set  325  moving linearly and reciprocatingly. Hence, the light can be transmitted to each light-transmitting unit  331 . Finally, each node module can transmit the first signal generated from the breast tissues back to the photo detector  322  to complete the detection. 
         [0079]    Although the present invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.