Tumor electric field treatment device and electric field generating device thereof

Abstract

The utility model provides a tumor electric field treatment device and an electric field generating device thereof, the electric field generating device comprises a housing with a button hole, a circuit board arranged in the housing and provided with a switch, and a button assembly corresponding to the switch and clamped between the housing and the circuit board, and the button assembly is provided with a button column exposed out of the button hole. The circuit board further comprises a plurality of LED display lamps, and the LED display lamps surround the switch and the button column and deviate from the button column. The button assembly further comprises a light guide piece with a light guide part, the light guide part is provided with a bottom corresponding to the LED display lamps and a top surrounding the button column, and the light guide part gathers light of the LED display lamps towards the button column. According to the button assembly of the electric field generating device, the LED display lamp is arranged deviating from the button column, and the light of the LED display lamp can be guided to be concentrated towards the button column by reasonably designing the structure of the light guide part, so that the indication effect of the display lamp can be ensured, and the compactness of the structure is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tumor electric field treatment device and electric field generating device thereof. BACKGROUND

[0002] At present, the treatment methods of tumors mainly include surgery, radiotherapy, chemotherapy and the like, but all have corresponding shortcomings, such as side effects of radiotherapy and chemotherapy, and killing of normal cells. The use of electric field to treat tumors is also one of the current research frontiers, and tumor electric field treatment is a tumor treatment method that generates an alternating electric field through a low-intensity, medium-high frequency electric field to interfere with the mitotic process of tumor cells by a special electric field generator. Studies have shown that electric field treatment has a significant effect in the treatment of diseases such as glioblastoma, non-small cell lung cancer and malignant pleural mesothelioma. The electric field applied by this method can affect the aggregation of tubulin protein, prevent spindle formation, inhibit the mitotic process, and induce apoptosis of cancer cells.

[0003] A common tumor electric field treatment device for tumor electric field treatment includes an electric field generating device and a pair of electrode patches. The electrode patches are attached to the body surface at the tissue region where the patient's lesion is located. The electric field generating device generates an alternating current signal and transmits the alternating current signal to the electrode patches to alternately generate an alternating electric field between each pair of electrode patches, thereby treating the tissue region where the patient's lesion is located. Chinese Utility Model Patent No. CN216536557U discloses an electric field generating device, which includes a housing, a main control board, a fan and a battery. The accommodation space in the housing is divided into a main control board compartment and a battery compartment by a partition, and the main control board and the battery are accommodated therein, respectively. A switch is provided on the main control board, and a button assembly for pressing the switch is provided between the housing and the main control board. The housing is provided with a switch hole, and the button assembly is exposed from the switch hole for the operator to press and operate. It is found that water is easy to enter the switch hole during the use of the tumor electric field treatment device. In addition, the electric field generating device cannot clearly identify whether it is working and its working state.

[0004] Therefore, it is necessary to improve the existing tumor electric field treatment device and its electric field generating device. UTILITY MODEL CONTENTS

[0005] The present application provides a tumor electric field treatment device and its electric field generating device, wherein the button assembly of the electric field generating device is provided with a light guide member capable of converging light, and the structure is compact and can indicate the working state of the electric field generating device.

[0006] Specifically, the application is realized by the following technical scheme: an electric field generating device for tumor electric field treatment, comprising a shell with a button hole, a circuit board provided with a switch in the shell, and a button assembly corresponding to the switch and clamped between the shell and the circuit board, the button assembly having a button column exposed to the button hole, the circuit board further comprising a plurality of LED display lamps, the plurality of LED display lamps being arranged around the switch and the button column and offset from the button column; the button assembly further comprising a light guide piece having a light guide part, the light guide part having a bottom part corresponding to the plurality of LED display lamps and a top part surrounding the button column, the light guide part converging the light of the LED display lamps towards the button column.

[0007] According to an embodiment of the present application, the button assembly further comprises a button cover clamped between the shell and the light guide piece, the button column passing through the light guide piece and the button cover and being exposed from the button hole, and the top part of the light guide part being located between the button cover and the button column.

[0008] According to an embodiment of the present application, a sealing ring is further clamped between the light guide piece and the button cover.

[0009] According to an embodiment of the present application, the light guide piece has an abutting part arranged around the light guide part, one end of the abutting part abutting the button cover, and the opposite end of the abutting part abutting the circuit board.

[0010] According to an embodiment of the present application, the button assembly further comprises a sealing cover located between the switch and the button column, and the plurality of LED display lamps are arranged around the sealing cover.

[0011] According to an embodiment of the present application, one end of the sealing cover abuts the circuit board, and the other end of the sealing cover abuts the button column and the light guide piece at the same time, and the button column abuts the light guide piece.

[0012] According to an embodiment of the present application, the sealing cover has a main body and a positioning column protruding from the main body towards the button column and being clamped with the button column.

[0013] According to an embodiment of the present application, the positioning column is provided with a clamping groove, and the button column is provided with a clamping rib matched with the clamping groove.

[0014] According to an embodiment of the present application, the sealing cover has a cavity accommodating the switch and a plurality of air permeation slots in communication with the cavity.

[0015] The application further provides the following technical scheme: a tumor electric field treatment device comprising the aforementioned electric field generating device and an electrode patch directly or indirectly electrically connected with the electric field generating device.

[0016] In the button assembly of the electric field generating device of the tumor electric field treatment device, the LED display lamp deviates from the button column due to the occupation of the sealing cover. By reasonably designing the structure of the light guide piece, the light of the LED display lamp can be guided to concentrate towards the button column, which not only ensures the indication effect of the LED display lamp, but also improves the compactness of the structure.

[0017] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective assembly view of the electric field generating device according to an embodiment of the application;

[0019] Figure 2 is a perspective assembly view of the electric field generating device shown in Figure 1

[0020] Figure 3 is a perspective assembly view of the front cover assembly of the electric field generating device shown in Figure 2

[0021] Figure 4 is a perspective assembly view of the front cover assembly shown in Figure 3

[0022] Figure 5 is similar to Figure 4 , taken from another angle;

[0023] Figure 6 is a perspective view of the button column and the sealing cover of the button assembly of the front cover assembly shown in Figure 4

[0024] Figure 7 is similar to Figure 6 , taken from another angle;

[0025] Figure 8 is a sectional view taken along the direction of A-A in Figure 2

[0026] Figure 9 is similar to Figure 8 , in which the front cover and the panel are removed for easy observation and rotated by an angle;

[0027] Figure 10 is a perspective view of the button cover shown in Figure 4

[0028] LIST OF REFERENCE NUMBERS:

[0029] ​​​​​​The electric field generating device 100, the front cover assembly 10, the front cover 11, the front wall 111, the assembly groove 1111, the side wall 112, the concave chamber 113, the light guide hole 114, the button hole 115, the display window 116, the mounting hole 117, the screw column 118, the positioning convex column 119, the circuit board 12, the base plate 120, the switch 121, the display screen 122, the photosensitive element 123, the photosensitive light guide piece 124, the LED display lamp 125, the button assembly 13, the button cover 131, the blocking rib 1311, the assembly column 1312, the sealing ring 132, the light guide piece 133, the abutting part 1331, the light guide part 1332, the refractive surface 1333, the button column 134, the positioning groove 1341, the cross rib 1342, the flange 1343, the sealing cover 135, the cavity 1351, the air permeable seam 1352, the main body 1353, the positioning column 1354, the cross groove 1355, the containing groove 1356, the sealing convex rib 1357, the panel 14, the through hole 141, the socket assembly 15, the sealing member 16, the upper shell assembly 20, the lower shell assembly 30, the rear cover assembly 40, the battery assembly 50. DETAILED DESCRIPTION

[0030] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent the same or similar elements. The following exemplary embodiments described in the detailed description section are not meant to be an all-inclusive description of all aspects of the application. Rather, they are merely examples that can be practiced with devices, systems, apparatuses and methods consistent with aspects of the application.

[0031] Reference Figure 1 and Figure 2 As shown in the drawings, the electric field generating device 100 of the tumor electric field treatment device according to an embodiment of the present application is used to directly or indirectly provide an alternating electric signal to the electrode patch (not shown) to generate a tumor treatment electric field between each pair of electrode patches (not shown). The electric field generating device 100 includes a front cover assembly 10, an upper shell assembly 20, a lower shell assembly 30, a rear cover assembly 40, and a battery assembly 50. The upper shell assembly 20 and the lower shell assembly 30 are assembled and fixed in a top-to-bottom manner to form a cylindrical shape with front and rear openings. The front cover assembly 10 is fixed at the front opening of the upper shell assembly 20 and the lower shell assembly 30, and the rear cover assembly 40 is fixed at the rear opening of the upper shell assembly 20 and the lower shell assembly 30. The front cover assembly 10, the upper shell assembly 20, the lower shell assembly 30, and the rear cover assembly 40 collectively enclose a cavity (not numbered) that accommodates the circuit board assembly. The main improvement of the present application lies in the front cover assembly 10, which will be described in detail below.

[0032] Reference Figure 3 , Figure 4 and Figure 5As shown, the front cover assembly 10 comprises a front cover 11, a circuit board 12, a button assembly 13, a faceplate 14, a socket assembly 15 and a sealing member 16. The front cover 11 has a front wall 111, a side wall 112 arranged along the periphery of the front wall 111, and a recess 113 formed by the front wall 111 and the side wall 112. The circuit board 12 is fixed on the front wall 111 of the front cover 11 and located in the recess 113, and the button assembly 13 is located between the front cover 11 and the circuit board 12. The socket assembly 15 is fixed on the front wall 111 of the front cover 11 and located in the recess 113. The circuit board 12 and the socket assembly 15 are located in the recess 113 in a side-by-side manner. The faceplate 14 covers the side of the front wall 111 away from the recess 113. The sealing member 16 is sleeved outside the side wall 112 for sealing the gap between the front cover assembly 10 and the upper shell assembly 20 and the lower shell assembly 30 to prevent water vapor and the like from entering the inside of the electric field generating device 100 through the gap.

[0033] The circuit board 12 has a substrate 120, a switch 121, a display screen 122, a light sensing element 123, a light sensing light guide 124 and a plurality of LED display lamps 125 arranged on the substrate 120. The display screen 122 is located in the middle of the circuit board 12, the switch 121 and the light sensing element 123 are arranged on both sides of the display screen 122, the light sensing light guide 124 is located directly in front of the light sensing element 123, and the plurality of LED display lamps 125 are arranged in a circular ring around the switch 121.

[0034] The front wall 111 of the front cover 11 has a button hole 115 corresponding to the button assembly 13, a display window 116 corresponding to the display screen 122, a light guide hole 114 corresponding to the photosensitive light guide 124, and a mounting hole 117 corresponding to the socket assembly 15. The panel 14 has a through hole 141 corresponding to the button hole 115. The button assembly 13 is disposed corresponding to the switch 121 and protrudes forward through the button hole 115 of the front cover 11 and the through hole 141 of the panel 14, so that the operator can activate the switch 121 by pressing the button assembly 13. The display screen 122 of the circuit board 12 is disposed corresponding to the display window 116 of the front cover 11 and protrudes through the display window 116. The photosensitive light guide 124 is disposed corresponding to the light guide hole 114 of the front cover 11 and is located between the photosensitive element 123 and the front cover 11. The photosensitive element 123 can adjust the brightness of the display screen 122 and the LED indicator 125 by detecting the intensity of ambient light, ensuring that the display screen 122 and the LED indicator 125 are clearly visible under any ambient light conditions while avoiding glare. The panel 14 is made of transparent material and covers the display window 116 and the light guide hole 114 to reveal the display interface of the display screen 122. The panel 14 does not cover the mounting holes 117 of the front cover 11, and the plug interface 151 of the socket assembly 15 can be exposed through the mounting holes 117 for connection to external devices (not shown). The front wall 111 of the front cover 11 is provided with several screw posts 118 on the side facing the circuit board 12. Screws (not shown) pass through the circuit board 12 and are locked to the screw posts 118, which can fix the circuit board 12 to the front wall 111 of the front cover 11 and clamp the button assembly 13 between the front cover 11 and the circuit board 12. Furthermore, the front wall 111 of the front cover 11 is provided with several positioning protrusions 119 on the side facing the circuit board 12. The substrate 120 of the circuit board 12 is also provided with positioning holes (not labeled) that mate with the positioning protrusions 119. The positioning protrusions 119 and the positioning holes (not labeled) mate with each other to position the circuit board 12 before the screws (not shown) lock the circuit board 12, which is convenient for assembly.

[0035] refer to Figures 4 to 7 and combined Figure 8 and Figure 9 As shown, the button assembly 13, from front to back, includes a button cover 131, a sealing ring 132, a light guide 133, a button post 134, and a sealing cover 135. (See attached image for details.) Figure 8 As shown, the sealing cover 135 is close to the switch 121 on the circuit board 12 and has a cavity 1351 to accommodate the switch 121. The sealing cover 135 protects the switch 121 from moisture contact. The button post 134 and the sealing cover 135 are interlocked to form a tight connection. The button cover 131, the sealing ring 132, and the light guide 133 are all arranged in a ring shape. The button post 134 passes through the light guide 133, the sealing ring 132, and the button cover 131 to protrude from the front cover 11.

[0036] In use, the operator presses the button post 134 rearward, the button post 134 moves rearward and pushes the sealing cover 135 rearward, the corresponding structure at the cavity 1351 of the sealing cover 135 is pressed and deformed to make the corresponding part of the sealing cover 135 directly contact and actuate the switch 121, it can also be understood that the button post 134 presses and actuates the switch 121 through the sealing cover 135; when the pressure of the operator is removed, the elastic restoring force of the sealing cover 135 can drive the sealing cover 135 and the button post 134 to reset. The sealing cover 135 also has a gas permeable gap 1352 at the bottom surface thereof and in communication with the cavity 1351, so as to avoid that the cavity 1351 of the sealing cover 135 is completely sealed, thereby affecting the pressing action of the button post 134. The size of the gas permeable gap 1352 is very small, which basically does not affect the sealing effect of the sealing cover 135 on the switch 121.

[0037] The sealing cover 135 has a main body 1353 forming the aforementioned cavity 1351 and a positioning post 1354 protruding from the center of the main body 1353 toward the button post 134. The positioning post 1354 is provided with a clamping groove 1355, and the button post 134 is provided with a clamping rib 1342 corresponding to the clamping groove 1355. In this embodiment, the clamping groove 1355 of the positioning post 1354 is a cross groove 1355, and the clamping rib 1342 of the button post 134 is a cross rib 1342. Specifically, the button post 134 is provided with a positioning groove 1341 and a cross rib 1342 located in the positioning groove 1341. When the sealing cover 135 and the button post 134 are matched with each other, the positioning post 1354 is inserted into the positioning groove 1341, and the cross rib 1342 is inserted into the cross groove 1355, so that the sealing cover 135 and the button post 134 are tightly positioned and clamped. The main body 1353 of the sealing cover 135 is also provided with a receiving groove 1356 surrounding and accommodating the positioning post 1354. One end of the button post 134 toward the sealing cover 135 is accommodated in the receiving groove 1356, and the receiving groove 1356 provides a space for the pressing operation of the button post 134. The sealing cover 135 is clamped and fixed between the button post 134 and the circuit board 12, and the cavity 1351 of the sealing cover 135 can provide a space for the pressing deformation of the sealing cover 135.

[0038] The light guide 133 is annularly arranged outside the button post 134 and the sealing cover 135, and has a light guiding effect. The end of the button post 134 close to the sealing cover 135 is further provided with a flange 1343 radially protruding outward from the side thereof. In the natural state, the flange 1343 abuts against the rear side of the light guide 133, so as to limit the forward movement of the button post 134, and avoid the disengagement of the button post 134 from the sealing cover 135. The corresponding part of the main body 1353 of the sealing cover 135 towards the light guide 133 abuts against the corresponding part of the light guide 133, so as to prevent the water vapor from entering the gap between the light guide 133 and the button post 134, and avoid affecting the performance of the electronic components on the circuit board 12. Specifically, the main body 1353 of the sealing cover 135 has a sealing protrusion 1357 protruding towards the light guide 133, which can strengthen the abutment between the sealing cover 135 and the light guide 133, and thus strengthen the sealing performance.

[0039] The light guide 133 has an abutting part 1331 and a light guiding part 1332. The abutting part 1331 is annularly arranged around and connected with the light guiding part 1332. The abutting part 1331 abuts against the button cover 131 forwardly and the circuit board 12 rearwardly, i.e. the abutting part 1331 of the light guide 133 is clamped between the button cover 131 and the circuit board 12. The bottom of the light guiding part 1332 is located in front of the LED display lamp 125 on the circuit board 12, and the top of the light guiding part 1332 is annularly arranged outside the button post 134 and located between the button post 134 and the button cover 131 and exposed outwardly. The light guiding part 1332 converges the light of the LED display lamp 125 forwardly and centrally to the button post 134 through a plurality of refracting surfaces 1333, so as to form a light ring around the button post 134. Due to the occupation of the sealing cover 135, the LED display lamp 125 is arranged at a distance from the button post 134 and annularly around the sealing cover 135. However, the light can be guided to the button post 134 by the arrangement of the light guide 133, so as to form a light effect around the button post 134, ensure the indication effect, and make the overall structure of the button assembly 13 small and compact.

[0040] The button cover 131, the supporting portion 1331 of the light guide 133, and the light guide portion 1332 together form a space (not labeled). A sealing ring 132 is located within this space and is sandwiched between the button cover 131 and the light guide portion 1332 of the light guide 133. The front side of the sealing ring 132 is in contact with the rear side of the button cover 131, and the rear side of the sealing ring 132 is in contact with the front side of the light guide 133. The sealing ring 132 seals the gap between the button cover 131 and the light guide 133, preventing moisture from entering the electric field generating device 100 through this gap. The button cover 131 exposes the light guide portion 1332 and the button post 134 while concealing other structures of the button assembly 13, resulting in a simpler appearance. The button cover 131 is also provided with a ring of baffles 1311 that protrude radially outward from its periphery. The baffles 1311 abut against the corresponding part of the front wall 111 of the front cover 11, so that the button assembly 13 is sandwiched between the circuit board 12 and the front wall 111 of the front cover 11, preventing the button assembly 13 from moving forward away from the front cover 11.

[0041] Reference Figure 4 and Figure 10 As shown, the side of the button cover 131 exposed above the front cover 11 is also provided with a texture extending from its center to its edge to enhance the product's design. The front wall 111 of the front cover 11 is also provided with a mounting groove 1111, and the button cover 131 is also provided with a mounting post 1312 corresponding to the mounting groove 1111. When the button cover 131 abuts against the front cover 11, the mounting post 1312 is located within the mounting groove 1111, ensuring the consistency of the external texture design of the button covers 131 of different electric field generating devices 100 during installation. In this embodiment, the mounting groove 1111 of the front wall 111 of the front cover 11 communicates with the button hole 115.

[0042] The front cover 11, upper shell assembly 20, lower shell assembly 30, and rear cover assembly 40 together form the housing (unlabeled) of the electric field generating device 100, and the battery assembly 50 is detachably assembled inside the housing (unlabeled). In other embodiments, the switch 121, display screen 122, photosensitive element 123, and several LED indicator lights 125 may also be disposed on different circuit boards 12; the button hole 115, display window 116, and mounting hole 117 may also be located on different sides of the housing (unlabeled). The display window 116 may be located on other sides of the housing (unlabeled) except the bottom, and the display screen 122 is correspondingly arranged with the display window 116. The button hole 115 may be located on other sides of the housing (unlabeled) except the bottom, and the switch 121 and button assembly 13 are correspondingly arranged with the button hole 115; the mounting hole 117 may be located on other sides of the housing (unlabeled) except the bottom, and the socket assembly 15 is correspondingly arranged with the mounting hole 117.

[0043] In the button assembly 13 of the electric field generating device 100 of the tumor electric field treatment device of the application, the LED display lamp 125 is arranged away from the button column 134 due to the occupation of the sealing cover 135, and by reasonably designing the structure of the light guide piece 133, the light of the LED display lamp 125 can be guided to be concentrated towards the button column 134, which not only ensures the indication effect of the LED display lamp 125, but also improves the compactness of the structure.

[0044] The above is only a preferred embodiment of the application, and is not used to limit the application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. An electric field generating device for tumor electric field therapy, comprising a housing with a button hole, a circuit board located inside the housing and having a switch, and a button assembly corresponding to the switch and sandwiched between the housing and the circuit board, the button assembly having a button post protruding from the button hole, characterized in that: The circuit board further comprises a plurality of LED display lamps, which are arranged around the switch and the button post and are offset from the button post; the button assembly further comprises a light guide member having a light guide portion, the light guide portion has a bottom corresponding to the plurality of LED display lamps and a top surrounding the button post, and the light guide portion converges the light of the LED display lamps towards the button post.

2. The electric field generating device of claim 1, wherein: The button assembly further comprises a button cover clamped between the housing and the light guide member, the button post passes through the light guide member and the button cover and is exposed from the button hole, and the top of the light guide portion is located between the button cover and the button post.

3. The electric field generating device of claim 2, wherein: A sealing ring is clamped between the light guide member and the button cover.

4. The electric field generating device of claim 2, wherein: The light guide member has a bearing portion surrounding the light guide portion, one end of the bearing portion bears against the button cover, and the opposite end of the bearing portion bears against the circuit board.

5. The electric field generating device of claim 2, wherein: The button assembly further comprises a sealing cover located between the switch and the button post, and the plurality of LED display lamps are arranged around the sealing cover.

6. The electric field generating device of claim 5, wherein: One end of the sealing cover bears against the circuit board, and the other end of the sealing cover bears against the button post and the light guide member at the same time, and the button post bears against the light guide member.

7. The electric field generating device of claim 5, wherein: The sealing cover has a main body and a positioning post protruding from the main body towards the button post and being engaged with the button post.

8. The electric field generating device of claim 7, wherein: The positioning post is provided with a clamping groove, and the button post is provided with a clamping rib matched with the clamping groove.

9. The electric field generating device of claim 5, wherein: The sealing cover has a cavity accommodating the switch and a plurality of air permeation slots communicating with the cavity.

10. A tumor electric field treatment device, characterized by: The electrode patch comprises the electric field generating device and the electrode patch is directly or indirectly electrically connected with the electric field generating device.

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