A medical capsule

Abstract

The present invention relates to a medical capsule, comprising a housing, the housing including an opening axially located at one end thereof; a PCB board group and a functional unit arranged inside the housing, the PCB board group including a plurality of PCB boards connected by a flexible circuit board and arranged at intervals; the functional unit including a battery unit electrically connected to the PCB board; a pressure detection unit, the pressure detection unit including a pressure transmission film assembled at the opening, a pressure sensor located inside the housing, and a pressure acquisition and processing circuit board electrically connected to the pressure sensor, the pressure acquisition and processing circuit board being connected to one of the PCB boards by a flexible circuit board. The medical capsule of the present invention has a simple structure, is convenient to assemble, and can expand functions according to requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a medical capsule. Background Art

[0002] With the wide application of capsule endoscopes, more and more medical wireless capsule devices have been developed and put into clinical use, and the functions of wireless capsules are also gradually increasing and improving. Among them, the measurement of pressure in the digestive tract has important clinical significance. Therefore, a pressure capsule endoscope has been developed to non-invasively and comfortably detect the pressure condition of the digestive tract, providing a basis for clinical diagnosis.

[0003] The existing pressure capsule endoscope technology either adopts a flexible outer shell with liquid filling inside, and the structure is very complex, making the production and assembly extremely difficult; or discloses the evaluation of vibration treatment effect through pressure acquisition, but does not disclose the specific assembly structure of the pressure capsule endoscope, nor provides a technical solution to solve the problems of complex structure and high assembly difficulty of the pressure capsule endoscope in the prior art.

[0004] In view of this, it is necessary to improve the existing medical capsule to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a medical capsule with a simple structure, convenient equipment, and the ability to expand functions according to needs.

[0006] In order to achieve the above invention purpose, the present invention adopts the following technical solutions:

[0007] A medical capsule, comprising:

[0008] An outer shell, the outer shell including an opening located at one end along the axial direction;

[0009] A PCB board group and a functional unit arranged inside the outer shell, the PCB board group including a plurality of PCB boards connected by flexible printed circuit boards and arranged at intervals; the functional unit includes a battery unit electrically connected to the PCB board;

[0010] A pressure detection unit, the pressure detection unit including a pressure transmission film assembled at the opening, a pressure sensor located inside the outer shell, and a pressure acquisition and processing circuit board electrically connected to the pressure sensor, the pressure acquisition and processing circuit board being connected to one of the PCB boards through a flexible printed circuit board.

[0011] Further, the pressure transmission film includes a pressure groove recessed from the inside to the outside, a pressure film arranged on the bottom surface of the pressure groove, and the pressure sensor is received in the pressure groove and faces the pressure film.

[0012] Further, the outer shell includes a front shell and a middle shell that cooperate with each other. A plurality of support feet protrude inwardly from one end of the middle shell away from the front shell. The pressure acquisition and processing circuit board is fixed to the side of the support feet facing away from the front shell. The pressure transmission film is assembled to one end of the middle shell away from the front shell. The pressure sensor is located between the pressure transmission film and the pressure acquisition and processing circuit board.

[0013] Further, fixing feet corresponding to the plurality of support feet one by one protrude around the pressure acquisition and processing circuit board.

[0014] Further, the outer shell includes a front shell and a middle shell that cooperate with each other, and a fixing groove located at the connection between the front shell and the middle shell.

[0015] The PCB board group further includes a fixing structure for connecting adjacent two PCB boards. The edge of one of the fixing structures is fixed in the fixing groove to fix the PCB board group in the outer shell.

[0016] Further, the PCB board group includes a lighting circuit board, an image acquisition and processing board, a power supply board, and an antenna transceiver board arranged in sequence. The fixing structure includes a lighting fixing structure. The lighting circuit board is located within the lighting fixing structure. The image acquisition and processing board is fixed to the side of the lighting fixing structure facing away from the front shell. The edge of the lighting fixing structure is received in the fixing groove.

[0017] Further, the functional unit further includes a lighting unit, a camera unit, and an antenna. The lighting unit is fixed to the side of the lighting circuit board facing the front shell. The camera unit is fixed to the side of the image acquisition and processing board facing the front shell. The battery unit is electrically connected to the power supply board. The antenna is fixed to the antenna transceiver board. The lighting fixing structure is annular. The lighting circuit board is provided with a through hole for the camera unit to pass through in the direction towards the front shell.

[0018] Further, the lighting fixing structure includes an annular holding wall, a holding frame protruding outward from the front end of a part of the holding wall, and a plurality of fixing clips protruding inward from the holding wall to fix and limit the lighting circuit board. The edge of the holding frame is fixed in the fixing groove.

[0019] The lighting circuit board is received in the installation groove formed by the surrounding of the holding wall. The image acquisition and processing board is fixed to the side of the holding wall facing away from the front shell.

[0020] Further, the battery unit is arranged between the power supply board and the antenna transceiver board. The fixing structure further includes battery fixing plates respectively located on both the positive and negative sides of the battery unit. The two battery fixing plates are respectively fixedly connected to the power supply board and the antenna transceiver board.

[0021] Further, the battery unit includes a plurality of batteries connected in series, battery connection pieces electrically connecting adjacent batteries, and electrode connection pieces connected to the positive and negative ends of the battery unit, and the two electrode connection pieces are electrically connected to the power supply board and the antenna transceiver board respectively.

[0022] Further, the medical capsule further includes a magnet unit disposed between the image acquisition and processing board and the power supply board. The magnet unit includes a magnet and a magnet fixing cover sleeved outside the magnet, and the magnet fixing cover is fixedly connected to the image acquisition and processing board and the power supply board.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention forms an endoscope imaging module through the PCB board group and the functional unit, and realizes the pressure detection of the digestive tract through the pressure detection unit, making the functions of the medical capsule diversified; in addition, the pressure detection unit is disposed on the opening side of the outer shell, so that the internal structure of the medical capsule is reasonably distributed and assembled quickly, which is conducive to mass production; and the present invention has the characteristics of convenient expansion and extension. When different functions need to be added, only the PCB, functional components and corresponding fixing parts need to be added in sequence, which is convenient to expand the functions of the medical capsule. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of the medical capsule of the present invention;

[0025] Figure 2 is a schematic structural diagram of the pressure transmission membrane in the medical capsule of the present invention;

[0026] Figure 3 is a schematic structural diagram of the pressure sensor and the pressure acquisition and processing circuit board in the medical capsule of the present invention;

[0027] Figure 4 is a schematic structural diagram of the PCB board group in the medical capsule of the present invention;

[0028] Figure 5 is a schematic assembly structure diagram of the PCB board group and the lighting fixing structure, the magnet fixing cover, and the battery fixing plate in the medical capsule of the present invention;

[0029] Figure 6 is a schematic assembly structure diagram of the lighting circuit board and the lighting fixing structure in the medical capsule of the present invention;

[0030] Figure 7 is a schematic assembly diagram of the medical capsule of the present invention and the outer shell through the lighting fixing structure.

[0031] 100 - Medical capsule, 1 - Outer shell, 10 - Front shell, 11 - Middle shell, 13 - Support feet, 130 - Gap, 14 - Fixing groove, 12 - Lighting fixing structure, 120 - Holding wall, 121 - Holding bracket, 122 - Fixing clip, 123 - Mounting groove, 124 - Positioning post, 125 - Positioning hole, 2 - PCB board group, 20 - Flexible circuit board, 210 - Lighting circuit board, 2100 - Through hole, 211 - Image acquisition and processing board, 212 - Power supply board, 2120 - Notch, 213 - Antenna transceiver board, 3 - Pressure detection unit, 30 - Pressure transmission film, 301 - Pressure groove, 302 - Pressure film, 303 - Annular step, 304 - Bonding part, 31 - Pressure sensor, 310 - Fixed seat, 32 - Pressure acquisition and processing circuit board, 320 - Fixed feet, 4 - Magnet unit, 40 - Magnet fixing cover, 41 - Glue dispensing hole, 5 - Camera unit, 6 - Battery unit, 60 - Battery, 61 - Battery connection piece, 62 - Electrode connection piece, 63 - Insulating gasket, 64 - Battery fixing plate, 7 - Antenna. Detailed implementation manners

[0032] The following will describe the present application in detail in conjunction with the specific implementation manners shown in the drawings. However, these implementation manners do not limit the present application, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these implementation manners is included within the protection scope of the present application.

[0033] In each drawing of the present application, for the convenience of illustration, the sizes of some structures or parts are exaggerated relative to other structures or parts. Therefore, it is only used to illustrate the basic structure of the subject matter of the present application.

[0034] As Figures 1 to 7 shown, the medical capsule 100 of the preferred embodiment of the present invention includes an outer shell 1, a PCB (Printed Circuit Board) board group 2, a functional unit, a pressure detection unit 3, and a magnet unit 4 disposed inside the outer shell 1.

[0035] The outer shell 1 has biocompatibility and will not be corroded by digestive juices. The material of the outer shell 1 in existing capsule endoscopes, etc. can be used, or it can be designed separately. And the outer shell 1 is formed by splicing at least two parts to facilitate fixing other structures inside the outer shell 1.

[0036] Specifically, the outer shell 1 includes an opening at one end along the axis, and the pressure detection unit 3 is installed at the opening, so that the internal structure of the medical capsule 100 is reasonably distributed and assembled quickly, which is conducive to mass production.

[0037] As Figure 1 、 Figures 4 to 7In the illustrated embodiment, the housing 1 specifically includes a front shell 10 and a middle shell 11 that cooperate with each other, and the two are integrated by adhesive or laser welding. A fixing groove 14 is formed at the connection between the front shell 10 and the middle shell 11. One end of the middle shell 11 away from the front shell 10 constitutes the opening, and several support feet 13 are convexly provided inside one end of the middle shell 11 away from the front shell 10. By providing the fixing groove 14 and the support feet 13, it is convenient to install the PCB board group 2 and the pressure detection unit 3.

[0038] The PCB board group 2 includes several PCB boards that are connected by a flexible circuit board 20 and arranged at intervals. Further, the PCB board group 2 further includes a fixing structure connecting adjacent two PCB boards, and the edge of one of the fixing structures is fixed in the fixing groove 14 to fix the PCB board group 2 in the housing 1.

[0039] A positioning post 124 is provided on one of the fixing structure and the adjacent PCB board, and a positioning hole 125 is provided on the other, which can prevent the two from rotating in the circumferential direction. Preferably, the positioning post 124 is provided on the fixing structure, and the positioning hole 125 is provided on the PCB board, and the manufacturing process is simple.

[0040] Specifically, the several PCB boards include a lighting circuit board 210, an image acquisition and processing board 211, a power supply board 212, and an antenna transceiver board 213 arranged in sequence.

[0041] As Figure 1 、 Figures 5 to 7 In the illustrated embodiment, the fixing structure includes a lighting fixing structure 12. The lighting circuit board 210 is located inside the lighting fixing structure 12, and the image acquisition and processing board 211 is fixed on the side of the lighting fixing structure 12 away from the front shell 10; the edge of the lighting fixing structure 12 is received in the fixing groove 14 and fixed to the housing 1 by glue.

[0042] The lighting fixing structure 12 includes an annular holding wall 120, a holding frame 121 that protrudes outward from the front end of a part of the holding wall 120 so as to be able to be received in the fixing groove 14, several fixing clips 122 that protrude from the holding wall 120 inward to fix and limit the lighting circuit board 210, and a notch provided on the holding wall 120 for the flexible circuit board 20 to pass through. The holding wall 120 encloses to form an installation groove 123.

[0043] The fixing clamps 122 include two groups of fixing clamps 122 arranged at intervals along the front-back direction to clamp the lighting circuit board 210. The group of fixing clamps 122 located at the front side includes a plurality of buckles arranged at intervals, and the group of fixing clamps 122 located at the rear side includes a strip-shaped clamping strip extending along the holding wall 120. Preferably, the buckles and the clamping strip are installed in a staggered manner, the lighting circuit board 210 is accommodated in the installation groove 123 and clamped between the two groups of fixing clamps 122, and the flexible circuit board 20 connected to the lighting circuit board 210 extends out through the notch and is connected to the image acquisition and processing board 211.

[0044] The side of the holding wall 120 away from the front shell 10 is provided with a positioning column 124 and / or a positioning hole 125; the image acquisition processing board 211 is provided with a positioning hole 125 and / or a positioning column 124 that cooperates therewith. The image acquisition processing board 211 is fixed to the holding wall 120 through the positioning column 124 and the positioning hole 125, and can prevent rotation in the circumferential direction. Preferably, the side of the holding wall 120 away from the front shell 10 is also provided with a glue dispensing groove (not shown), and the stability of the connection between the two is improved by glue dispensing.

[0045] After several PCB boards are connected as a whole through the fixing structure and the flexible circuit board 20, the edge of the fixing frame 121 is fixed in the fixing groove 14, so that the PCB board group 2 can be fixed as a whole in the housing 1, which is convenient for assembly.

[0046] The functional unit includes a lighting unit (not shown) electrically connected to the PCB board group 2 , a camera unit 5 , a battery unit 6 and an antenna 7 .

[0047] Specifically, the lighting unit is fixed to the side of the lighting circuit board 210 facing the front shell 10, the camera unit 5 is fixed to the side of the image acquisition and processing board 211 facing the front shell 10, the two electrodes of the battery unit 6 are electrically connected to the power board 212 and the antenna transceiver board 213 respectively, and the antenna 7 is fixed on the antenna transceiver board 213.

[0048] The lighting circuit board 210 is provided with a through hole 2100 for the camera unit 5 to pass through toward the front shell 10; the camera unit 5 on the image acquisition and processing board 211 passes through the through hole 2100 and the hollow part of the annular lighting circuit board 210 in sequence and is placed in the front shell 10.

[0049] The battery unit 6 is disposed between the power supply board 212 and the antenna transceiver board 213. The fixing structure further includes battery fixing plates 64 respectively located on both sides of the positive and negative electrodes of the battery unit 6. The two battery fixing plates 64 are respectively fixedly connected to the power supply board 212 and the antenna transceiver board 213, specifically by positioning posts 124 and positioning holes 125.

[0050] Further, the battery unit 6 includes a plurality of batteries 60 connected in series, battery connection sheets 61 electrically connecting adjacent batteries 60, and electrode connection sheets 62 connected to the positive and negative ends of the battery unit 6. The two electrode connection sheets 62 are respectively electrically connected to the power supply board 212 and the antenna transceiver board 213. The battery connection sheets 61 electrically connect the plurality of batteries 60 together to form a battery pack, and the electrode connection sheets 62 connect the positive or negative electrode of the battery pack to the corresponding PCB board for electrical output.

[0051] Wherein, the battery 60 is a button battery, and the battery unit 6 further includes an insulating gasket 63 located around the negative electrode of the battery 60 to insulate the negative electrode and the positive electrode, and at the same time insulate the battery 60 from the battery connection sheet 61 or the electrode connection sheet 62 located at the insulating gasket 63.

[0052] The battery connection sheet 61 is in a folded shape and located between two adjacent batteries 60, saving space, and the battery connection sheet 61 can be connected to the battery 60 in forms such as welding and conductive adhesive. The electrode connection sheet 62 is preferably fixed to the positive and negative electrodes of the battery unit 6 and the PCB board by welding to improve stability. One end of the electrode connection sheet 62 away from the battery 60 is provided with a recess, and corresponding recesses 2120 are provided on the power supply board 212 and the antenna transceiver board 213 to facilitate solder absorption during welding.

[0053] In addition, the medical capsule 100 further includes a magnet unit 4 disposed between the image acquisition and processing board 211 and the power supply board 212. The magnet unit 4 includes a magnet and a magnet fixing cover 40 sleeved outside the magnet.

[0054] The magnet fixing cover 40 is a hollow groove inside, and the height inside the groove matches the magnet. The two sides of the magnet fixing cover 40 are respectively fixedly connected to the image acquisition and processing board 211 and the power supply board 212 through positioning posts 124 and positioning holes 125. At the same time, a glue injection hole 41 is further provided below the magnet fixing cover 40. Since the magnet fixing cover 40 is relatively large in volume, the overall structure is made more stable by injecting glue into the glue injection hole 41 to fix it to the adjacent PCB board.

[0055] The PCB board group 2 and the functional unit of the present invention constitute an endoscopic imaging module, which is used to collect images in the digestive tract. The magnet unit 4 controls the movement and posture of the medical capsule under the control of the extracorporeal magnetic field to obtain images at a better angle.

[0056] See also Figures 1 to 3 As shown, the pressure detection unit 3 is used to sense the pressure inside the digestive tract, and includes a pressure transmission membrane 30 installed at the opening of the middle shell 11 away from the front shell 10, a pressure sensor 31 located in the middle shell 11 and matched with the pressure transmission membrane 30, and a pressure acquisition and processing circuit board 32 electrically connected to the pressure sensor 31. The pressure acquisition and processing circuit board 32 is connected to one of the PCB boards through the flexible circuit board 20; preferably, the pressure acquisition and processing circuit board 32 is connected to the antenna transceiver board 213 close to the opening.

[0057] The pressure transmission membrane 30 is preferably made of silicone, and includes a pressure groove 301 formed by being concave from the inside to the outside, and a pressure membrane 302 arranged on the bottom surface of the pressure groove 301 . The pressure sensor 31 is accommodated in the pressure groove 301 and faces the pressure membrane 302 .

[0058] The pressure transmission membrane 30 also includes an annular step 303 located at the upper end of the pressure groove 301. The pressure sensor 31 is fixed to the pressure acquisition and processing circuit board 32 through a fixing seat 310 that cooperates with the annular step 303 to limit the distance between the pressure sensor 31 and the pressure membrane 302.

[0059] The pressure transmission membrane 30 further includes an adhesive portion 304 formed concavely around the membrane. The adhesive portion 304 is fixed to the lower end of the middle shell 11 by glue, so that the structure of the pressure detection unit 3 and the middle shell 11 installed is more stable.

[0060] The cross section of the pressure groove 301 is T-shaped, and the thickness of the pressure membrane 302 located at the bottom of the pressure groove 301 is preferably 0.1 mm to 0.5 mm.

[0061] The pressure collection and processing circuit board 32 is fixed to the side of the supporting foot 13 away from the front shell 10, the pressure transmission membrane 30 is assembled on the end of the middle shell 11 away from the front shell 10, and the pressure sensor 31 is located between the pressure transmission membrane 30 and the pressure collection and processing circuit board 32.

[0062] Furthermore, the diameter of the pressure collection and processing circuit board 32 is smaller than the diameter of other PCB boards in the PCB board group 2, and the pressure collection and processing circuit board 32 is provided with fixed feet 320 corresponding to a plurality of support feet 13 on all sides, so as to facilitate the overall assembly. The reference assembly process is: the pressure collection and processing circuit board 32 is connected to the antenna transceiver board 213 as a whole through the flexible circuit board 20, and then the entire PCB board group 2 is inserted into the middle shell 11 from the end of the middle shell 11 close to the front shell 10, and the pressure collection and processing circuit board 32 passes through the gap 130 between the support feet 13 to the side of the support feet 13 away from the front shell 10, and then the fixed feet 320 are fixed to the support feet 13 one by one by glue or the like.

[0063] In summary, the present invention forms an endoscopic imaging module through the PCB board group 2 and the functional unit, and realizes pressure detection of the digestive tract through the pressure detection unit 3, so that the functions of the medical capsule are diversified; in addition, the pressure detection unit 3 is arranged on the opening side of the shell 1, so that the internal structure of the medical capsule is reasonably distributed and the assembly is quick, which is conducive to mass production; and the present invention has the characteristics of convenient expansion and extension. When different functions need to be added, it is only necessary to add PCB boards, functional elements and corresponding fixings in sequence, which is convenient for expanding the functions of the medical capsule.

[0064] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0065] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A medical capsule, characterized in that, Comprising: A housing, the housing including an opening axially located at one end thereof; A PCB board group and a functional unit disposed inside the housing, the PCB board group including a plurality of PCB boards connected by a flexible circuit board and spaced apart; the functional unit including a battery unit electrically connected to the PCB board; A pressure detection unit, the pressure detection unit including a pressure transmission film assembled at the opening, a pressure sensor located inside the housing, and a pressure acquisition and processing circuit board electrically connected to the pressure sensor, the pressure acquisition and processing circuit board being connected to one of the PCB boards by a flexible circuit board; the pressure transmission film including a pressure groove recessed from the inside outwards, a pressure film disposed on the bottom surface of the pressure groove, and the pressure sensor being received in the pressure groove and facing the pressure film; The housing includes a front shell and a middle shell that cooperate with each other, and a plurality of support feet are convexly provided inside one end of the middle shell away from the front shell; the pressure acquisition and processing circuit board is fixed to a side of the support feet facing away from the front shell, the pressure transmission film is assembled at one end of the middle shell away from the front shell, and the pressure sensor is located between the pressure transmission film and the pressure acquisition and processing circuit board.

2. The medical capsule according to claim 1, wherein Fixing feet corresponding to the plurality of support feet one by one are convexly provided around the pressure acquisition and processing circuit board.

3. The medical capsule according to any one of claims 1 to 2, characterized in that, The housing includes a front shell and a middle shell that cooperate with each other, and a fixing groove located at the connection between the front shell and the middle shell; The PCB board group further includes a fixing structure connecting adjacent two PCB boards, and an edge of one of the fixing structures is fixed in the fixing groove to fix the PCB board group inside the housing.

4. The medical capsule according to claim 3, characterized in that, The PCB board group includes a lighting circuit board, an image acquisition and processing board, a power supply board, and an antenna transceiver board arranged in sequence; the fixing structure includes a lighting fixing structure, the lighting circuit board is located inside the lighting fixing structure, and the image acquisition and processing board is fixed to a side of the lighting fixing structure facing away from the front shell; an edge of the lighting fixing structure is received in the fixing groove.

5. The medical capsule according to claim 4, characterized in that, The functional unit further includes a lighting unit, a camera unit, and an antenna. The lighting unit is fixed to a side of the lighting circuit board facing the front shell, the camera unit is fixed to a side of the image acquisition and processing board facing the front shell, the battery unit is electrically connected to the power supply board, and the antenna is fixed to the antenna transceiver board; the lighting fixing structure is annular, and the lighting circuit board is provided with a through hole for the camera unit to pass through towards the front shell.

6. The medical capsule according to claim 4, wherein The lighting fixing structure includes an annular holding wall, a holding bracket protruding outwards from the front end of a part of the holding wall, and a plurality of fixing clips protruding inwards from the holding wall to fix and limit the lighting circuit board. An edge of the holding bracket is fixed in the fixing groove; The lighting circuit board is received in an installation groove formed by surrounding of the holding wall, and the image acquisition and processing board is fixed to a side of the holding wall facing away from the front shell.

7. The medical capsule according to claim 4, wherein The battery unit is disposed between the power supply board and the antenna transceiver board. The fixing structure further includes battery fixing plates respectively located on both sides of the positive and negative electrodes of the battery unit, and the two battery fixing plates are respectively fixedly connected to the power supply board and the antenna transceiver board.

8. The medical capsule according to claim 4, wherein The battery unit includes a plurality of batteries connected in series, battery connection pieces electrically connecting adjacent batteries, and electrode connection pieces connected to the positive and negative ends of the battery unit. The two electrode connection pieces are respectively electrically connected to the power supply board and the antenna transceiver board.

9. The medical capsule according to claim 4, characterized in that, The medical capsule further includes a magnet unit disposed between the image acquisition and processing board and the power supply board. The magnet unit includes a magnet and a magnet fixing cover sleeved outside the magnet, and the magnet fixing cover is fixedly connected to the image acquisition and processing board and the power supply board.

Images