CN212939652U

CN212939652U - Endoscope capsule

Info

Publication number: CN212939652U
Application number: CN202020977414.0U
Authority: CN
Inventors: 刘雷; 段晓东
Original assignee: Ankon Medical Technologies Shanghai Ltd
Current assignee: Ankon Medical Technologies Shanghai Ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-04-13
Anticipated expiration: 2030-06-01

Abstract

The utility model provides an endoscope capsule, which comprises a shell, a PCB group and a functional unit, wherein the PCB group and the functional unit are arranged in the shell, and the PCB group comprises a plurality of PCBs arranged at intervals and a flexible circuit board connected with the adjacent PCBs; the function unit includes a power supply unit electrically connected with the PCB board, the power supply unit including: the battery pack comprises at least two button-type batteries which are connected in series in a stacked manner; and the connecting sheets are electrically connected with the battery pack and comprise electrode connecting sheets which are used for respectively connecting the anode and the cathode of the battery pack to the PCB at the two sides of the battery pack and intermediate connecting sheets which are positioned between two adjacent batteries and are connected with the two batteries in series.

Description

Endoscope capsule

Technical Field

The utility model relates to the field of medical equipment, especially, relate to an endoscope capsule.

Background

With the development of scientific technology, more advanced medical devices are being developed for the diagnosis and treatment of human diseases.

The capsule gastroscope greatly improves the comfort of gastrointestinal examination of people, and particularly, the invention of the magnetic control endoscope capsule expands and applies the endoscope capsule which can only be applied to small intestines originally to the examination of the stomach and even the colon. The introduction of the magnetic control technology improves the accuracy of capsule endoscopy, reduces the omission ratio and has great application prospect in the field of gastrointestinal examination. However, due to the introduction of the magnetron technology, the power supply inside the capsule endoscope and the PCB assembly structure become more complicated.

In view of the above, there is a need for an improved endoscope capsule to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an endoscope capsule.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

an endoscope capsule comprises a shell, a PCB group and a functional unit, wherein the PCB group is arranged in the shell and comprises a plurality of PCBs arranged at intervals and a flexible circuit board connected with the adjacent PCBs; the function unit includes a power supply unit electrically connected with the PCB board, the power supply unit including:

a battery pack comprising at least two cells connected in series;

and the connecting sheets are electrically connected with the battery pack and comprise electrode connecting sheets which are used for respectively connecting the anode and the cathode of the battery pack to the PCB at the two sides of the battery pack and intermediate connecting sheets which are positioned between two adjacent batteries and are connected with the two batteries in series.

Further, the electrode connecting sheet comprises a connecting part electrically connected with the positive electrode or the negative electrode, and the connecting part is wider than other positions on the electrode connecting sheet.

Further, the electrode connecting sheet further comprises an external connecting part extending away from the direction of the battery pack, and the external connecting part is electrically connected with the PCB at two sides of the battery pack.

Furthermore, the battery is a button battery, the external connection part extends from the outer periphery of the battery to the direction deviating from the battery pack, and one end of the external connection part deviating from the battery pack is welded with the welding hole in the outer periphery of the PCB.

Further, the battery is a button battery, the external connection portion extends in a direction that the inner side of the outer periphery of the battery faces away from the battery pack, and one end of the external connection portion, which deviates from the battery pack, is welded with a bonding pad in the PCB.

Further, one end of the external connection part, which is far away from the battery pack, is provided with a concave part.

Further, the connecting sheet is a nickel plated SPCC steel sheet, a nickel sheet or a copper sheet.

Furthermore, the thickness of the connecting sheet is 0.05 mm-0.5 mm.

Further, the outer shell comprises an end cover and a main shell, and at least part of the end cover is transparent;

the PCB group comprises a lighting plate, an image acquisition and processing plate, a power supply plate, an antenna transceiving plate and a fixing structure for connecting two adjacent PCBs, which are sequentially connected through a flexible circuit board; the functional unit also comprises a lighting unit, a camera unit and an antenna which are fixed on the PCB or electrically connected with the PCB; the lighting unit is fixed on one side, facing the end cover, of the lighting plate, the camera shooting unit is fixed on one side, facing the end cover, of the image acquisition processing plate, the power supply unit is located between the power supply plate and the antenna receiving and transmitting plate, one of the two electrode connecting pieces is electrically connected to the power supply plate, the other electrode connecting piece is electrically connected to the antenna receiving and transmitting plate, and the antenna is fixed on the antenna receiving and transmitting plate; the illuminating plate is provided with a through hole for the camera shooting unit to pass through towards the direction of the end cover.

Furthermore, the PCB group comprises an image acquisition processing board and a power supply board which are connected through a flexible circuit board; the endoscope capsule further comprises a magnet unit arranged between the image acquisition processing board and the power board, the magnet unit comprises a magnet and a magnet fixing cover sleeved outside the magnet, and the magnet fixing cover is connected and fixed to the image acquisition processing board and the power board.

The utility model has the advantages that: the power supply unit of the endoscope capsule of the utility model connects at least two batteries in series through the connecting sheet, thereby meeting the requirement of the endoscope capsule on large electric quantity; meanwhile, the batteries are connected into a whole through the middle connecting sheet and then electrically connected to the PCB through the electrode connecting sheet, so that the circuit wiring and fixing modes are simplified.

Drawings

FIG. 1 is a schematic view of an endoscope capsule according to a preferred embodiment of the present invention;

FIG. 2 is a schematic diagram of the battery configuration of the endoscope capsule shown in FIG. 1;

fig. 3 is a schematic view illustrating an assembly process of the positive electrode and the electrode connecting sheet of the battery according to a preferred embodiment of the present invention;

FIG. 4 is a schematic view of the process of assembling the negative electrode and the electrode connecting sheet of the battery according to a preferred embodiment of the present invention;

fig. 5 is a schematic diagram of the structure of a PCB board set matched to the power supply unit of fig. 3 and 4;

FIG. 6 is a schematic view showing the process of assembling the positive electrode and the electrode connecting sheet of the battery according to another preferred embodiment of the present invention;

FIG. 7 is a schematic view of the assembly process of the negative electrode and the electrode connecting sheet of the battery according to another preferred embodiment of the present invention;

fig. 8 is a schematic diagram of the structure of a PCB board set matched to the power supply unit of fig. 6 and 7;

FIG. 9 is a schematic view of the assembly of two adjacent cells with an intermediate connecting tab;

FIG. 10 is an exploded view of the PCB board and the mounting structure;

figure 11 is a schematic view of the capsule core being secured within the shell by an illumination fixture.

100-endoscope capsule, 1-shell, 11-main shell, 12-end cover, 13-fixed slot, 2-PCB group, 20-flexible circuit board, 21-lighting board, 211-through hole, 22-image acquisition processing board, 23-power board, 231-welding hole, 232-welding pad, 24-antenna receiving and transmitting board, 25-fixed structure, 251-lighting fixed structure, 252-fixed wall, 253-fixed frame, 254-fixed fastener, 255-installation slot, 26-positioning projection, 27-positioning hole, 28-dispensing hole, 4-camera unit, 5-power supply unit, 51-battery group, 511-positive pole, 512-negative pole, 52-connecting piece, 53-electrode connecting piece, 531-connecting piece, 532-external connection part, 5321-concave part, 54-intermediate connection piece, 55-insulating gasket, 56-positive electrode battery fixing structure, 57-negative electrode battery fixing structure, 6-magnet unit, 61-magnet, 62-magnet fixing cover and 7-antenna.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art based on these embodiments are all included in the scope of the present invention.

In the various drawings of the present invention, certain dimensions of structures or portions may be exaggerated relative to other structures or portions for ease of illustration, and thus, are used only to illustrate the basic structure of the subject matter of the present invention.

Referring to fig. 1 to 11, an endoscope capsule 100 of the present invention includes a housing 1 and a capsule core disposed inside the housing 1.

Referring to fig. 1, the housing 1 is biocompatible and not corroded by digestive juice, and the material of the housing 1 in the existing capsule endoscope can be used or can be designed additionally.

The shell 1 is formed by splicing at least two parts so as to fix the capsule core in the shell 1. For example, as shown in fig. 1, the housing 1 includes a main casing 11, and a transparent end cap 12 disposed at one end of the main casing 11, and is suitable for a single-lens endoscope capsule. The transparent end cover 12 and the main shell 11 are spliced along the axial direction of the endoscope capsule to form the outer shell 1, the outer shell and the main shell are connected together by adopting viscose glue or laser welding, and the sealing performance is good. Alternatively, the housing 1 includes a main casing 11 with both ends open, and two transparent end caps 12 respectively disposed at both ends of the main casing 11, and is suitable for a dual-lens endoscope capsule.

Further, the joint of the end cap 12 and the main shell 11 has a fixing groove 13 for fixing the capsule core.

Referring to fig. 1-10, the capsule core includes all the elements that perform the function of an endoscopic capsule 100, preferably in a one-piece construction, facilitating integral assembly with the housing 1. In this embodiment, the capsule core includes a Printed Circuit Board (PCB) set 2 and a functional unit.

The PCB group 2 includes a plurality of PCBs connected by the flexible circuit board 20 and disposed at intervals, and a fixing structure 25 connecting two adjacent PCBs. The PCB boards comprise a lighting board 21, an image acquisition processing board 22, a power board 23 and an antenna transceiving board 24 which are sequentially arranged. The fixing structure 25 may be a structural member for fixing the function unit, and in a specific case, may be the function unit itself.

In addition, the fixing structure 25 and the PCB are fixed by the positioning protrusion 26 and the positioning hole 27, so that the assembly is convenient, and the PCB can be prevented from deflecting along the circumferential direction; further, at least one of the fixing structure 25 and the PCB is further provided with a dispensing hole 28 for dispensing and fixing.

The functional unit includes a lighting unit (not shown) fixed on the PCB and electrically connected to the PCB, a camera unit 4, an antenna 7, and a power supply unit 5.

Specifically, the illumination unit is fixed on a side of the illumination plate 21 facing the end cover 12, the camera unit 4 is fixed on a side of the image acquisition processing plate 22 facing the end cover 12, the power supply unit 5 is located between the power supply plate 23 and the antenna transceiver plate 24, and the antenna 7 is fixed on the antenna transceiver plate 24. The illumination plate 21 is provided with a through hole 211 through which the camera unit 4 passes toward the end cap 12.

In a specific embodiment, the illumination unit comprises a ring of LED lamps arranged around the through hole 211 to provide a uniform bright light in all directions when the camera unit 4 is in operation.

The power supply unit 5 includes a battery pack 51 and a plurality of connection pads 52 electrically connected to the battery pack 51. The electrical connection can be realized by welding or conductive adhesive.

The battery pack 51 includes at least two batteries connected in series. Preferably, the battery is a button battery, and at least two batteries are arranged in a stacked manner; compact structure and meets the requirement of the endoscope capsule 100 for large electric quantity.

In one embodiment, the battery is a button silver oxide battery, and both the safety and the stability of the battery can meet the safety requirements of the medical capsule.

The connecting sheet 52 comprises an electrode connecting sheet 53 for connecting the positive electrode 511 and the negative electrode 512 of the battery pack 51 to the PCB at two sides of the battery pack 51, and an intermediate connecting sheet 54 located between two adjacent batteries and connected in series with the two batteries. The batteries are connected into a whole through the middle connecting sheet 54 and then electrically connected to the PCB through the electrode connecting sheet 53, so that the circuit wiring and fixing modes are simplified.

The electrode connecting sheet 53 includes a connecting portion 531 electrically connected to the positive electrode 511 or the negative electrode 512, and the connecting portion 531 is wider than other positions on the electrode connecting sheet 53, so that multi-point welding is facilitated, and power supply stability is improved.

The electrode connecting sheet 53 further comprises an external connecting part 532 extending in a direction away from the battery pack 51, and the external connecting part 532 is electrically connected with the PCB boards on two sides of the battery pack 51 to supply power to the PCB boards. Specifically, the electrode connecting sheet 53 includes a positive electrode welding sheet for electrically connecting the positive electrode 511 of the battery pack 51 to the PCB on the positive electrode 511 side, and a negative electrode welding sheet for electrically connecting the negative electrode 512 of the battery pack 51 to the PCB on the negative electrode 512 side, and the positive electrode welding sheet and the negative electrode welding sheet have the same structure.

In a preferred embodiment, the electrode connecting sheet 53 includes a connecting portion 531, and two external portions 532 connected to two opposite sides of the connecting portion 531, and the stability of structure fixation and the stability of power supply are further enhanced by the two external portions 532. The connecting part 531 is circular and comprises a plurality of welding points, for example, at least 4 welding points, and can be welded by soldering, high-pressure spot welding or laser spot welding, so that the power supply stability is improved; the external connection part 532 is strip-shaped and is convenient to bend.

In a preferred scheme, the connection between the connection part 531 and the positive electrode 511 or the negative electrode 512 adopts a spot welding process, preferably laser spot welding, and has high consistency and high automation degree. And the external connection part 532 and the PCB are welded by tin soldering, so that the welding stability is kept.

Referring to fig. 3 to 5, in an embodiment, the battery is a button-type battery, the external connection portion 532 extends from the outer periphery of the battery to a direction away from the battery pack 51, at this time, the outer peripheries of the power board 23 and the antenna transceiver board 24 are both provided with welding holes 231, and one end of the external connection portion 532 away from the battery pack 51 is welded to the welding hole 231 of the outer periphery of the PCB.

Referring to fig. 6 to 8, in another embodiment, the battery is a button-type battery, and the external portion 532 extends inward from the outer periphery of the battery and away from the battery pack 51. That is, the external connection portion 532 is bent away from the battery pack 51 from the middle position of the battery. At this time, the power board 23 and the antenna transceiver board 24 are provided with pads 232 inside, and one end of the external connection portion 532 away from the battery pack 51 is welded to the pads 232 inside the PCB.

Furthermore, one end of the external connection part 532, which is away from the battery pack 51, is provided with a concave part 5321, so that soldering tin can be conveniently eaten, and the welding stability is improved.

Referring to fig. 9, the intermediate connecting sheet 54 is connected to the positive electrode 511 and the negative electrode 512 of the adjacent cell respectively, and then folded along the dotted line in the figure, so that the intermediate connecting sheet 54 is folded between the two cells.

Further, the connecting sheet 52 is a nickel plated SPCC (Cold Rolled Steel sheet and Steel strip) Steel sheet, a nickel sheet or a copper sheet, and can be welded to the electrode of the battery, the PCB board and the load electrical component. Pure nickel sheets are selected, so that insufficient soldering can be effectively avoided; among them, the pure nickel sheet is formed of pure nickel generally mentioned in the art, and allows inclusion of trace impurities that cannot be excluded in the purification process, not only pure nickel of 100% content.

The thickness of the connecting sheet 52 is 0.05 mm-0.5 mm, and the preferred size is 0.08-0.15 mm; the electric connection can be ensured, certain structure fixation can be provided, and the weight of the electric connector can be taken into consideration.

Further, the power supply unit 5 further includes an annular insulating gasket 55 located around the negative electrode 512 of the battery, and the annular insulating gasket is attached to the negative electrode 512 and just covers a circle of positive electrode part around the negative electrode 512, so as to avoid short circuit of the positive and negative electrode regions of the battery caused by devices or other electrical contacts. For example, the negative electrode 512 and the positive electrode portion around the negative electrode 512 may be isolated, or the connecting piece 52 connected to the negative electrode 512 and the positive electrode portion around the negative electrode 512 may be isolated.

The insulating gasket 55 is a film made of a PET (polyethylene terephthalate) material, a PVC (polyvinyl chloride) material, a PP (polypropylene) material, or a PA (polyamide) material with a back adhesive, and has a thickness of 0.01mm to 0.5mm, preferably 0.05mm to 0.15mm, which satisfies a good process yield and can realize a good insulating property.

In addition, the power supply unit 5 further includes a positive electrode battery fixing structure 56 and a negative electrode battery fixing structure 57 for fixing the power supply unit 5 to the PCB, and the structures thereof are not limited, and the two can be fixed as a whole.

Further, the endoscope capsule 100 further includes a magnet unit 6 disposed between the image acquisition processing board 22 and the power supply board 23. The magnet unit 6 comprises a magnet 61 and a magnet fixing cover 62 sleeved outside the magnet 61, wherein the magnet fixing cover 62 belongs to the fixing structure 25 and is connected and fixed with the image acquisition processing board 22 and the power board 23 into a whole.

Further, referring to fig. 1 and fig. 11, the fixing structure 25 includes an illumination fixing structure 251, the illumination plate 21 is located in the illumination fixing structure 251, and the image capturing and processing plate 22 is fixed to a side of the illumination fixing structure 251 facing away from the end cap 12 through the positioning protrusion 26 and the positioning hole 27.

Specifically, the lighting fixing structure 251 includes an annular holding wall 252, a holding frame 253 protruding outward from a portion of the holding wall 252 toward the front end of the end cover 12 to be capable of being received in the fixing groove 13, a plurality of fixing clips 254 protruding inward from the holding wall 252 to fix and limit the lighting board 21, and a notch portion disposed on the holding wall 252 for the flexible circuit board 20 to pass through, wherein the holding wall 252 encloses to form a mounting groove 255.

The fixing clips 254 include two sets of fixing clips 254 arranged at intervals in the front-rear direction to clip the illumination plate 21, a set of fixing clips 254 positioned at the front side includes a plurality of clips arranged at intervals, and a set of fixing clips 254 positioned at the rear side includes a strip-shaped clip strip extending along the holding wall 252. Preferably, the fastener and the fastener are installed in a staggered manner, the illumination plate 21 is accommodated in the installation groove 255 and is fastened between two sets of fixing fasteners 254, and the flexible circuit board 20 connected with the illumination plate 21 extends out through a notch portion to be connected with the image acquisition processing board 22.

A positioning protrusion 26 and/or a positioning hole 27 are/is arranged on one side of the holding wall 252, which faces away from the end cover 12; the image acquisition processing plate 22 is provided with a positioning hole 27 and/or a positioning protrusion 26 matched with the image acquisition processing plate. The image acquisition processing plate 22 and the holding wall 252 are fixed by the positioning protrusion 26 and the positioning hole 27, and can be prevented from rotating in the circumferential direction. Preferably, a dispensing hole 28 is further formed on a side of the holding wall 252 facing away from the end cap 12, so that the stability of connection between the holding wall and the end cap is improved by dispensing.

The adjacent PCB boards are connected through a fixing structure 25, the image acquisition processing board 22 and the power supply board 23 are fixedly connected through the magnet fixing cover 62, and the power supply board 23 and the antenna transceiving board 24 are fixed through the power supply unit 5, so that the PCB board group 2 forms a whole; and finally, the edge of the lighting fixing structure 251 extends into the fixing groove 13, and the endoscope capsule 100 is assembled by dispensing and fixing.

To sum up, the power supply unit 5 of the endoscope capsule 100 of the present invention connects at least two batteries in series through the connecting sheet 52, so as to satisfy the requirement of the endoscope capsule 100 for large electric quantity; meanwhile, the batteries are connected into a whole through the middle connecting sheet 54 and then electrically connected to the PCB through the electrode connecting sheet 53, so that the circuit wiring and fixing modes are simplified. Meanwhile, the PCB boards are fixed into a whole through the fixing structure 25, and the assembly is simple and feasible.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. An endoscope capsule comprises a shell, a PCB group and a functional unit, wherein the PCB group is arranged in the shell and comprises a plurality of PCBs arranged at intervals and a flexible circuit board connected with the adjacent PCBs; the functional unit includes with PCB board electric connection's power supply unit, its characterized in that, power supply unit includes:

a battery pack comprising at least two cells connected in series;

2. An endoscopy capsule according to claim 1, wherein: the electrode connecting piece comprises a connecting part electrically connected with the anode or the cathode, and the connecting part is wider than other positions on the electrode connecting piece.

3. An endoscopy capsule according to claim 2, wherein: the electrode connecting sheet further comprises an external connecting part extending away from the direction of the battery pack, and the external connecting part is electrically connected with the PCB at two sides of the battery pack.

4. An endoscopy capsule according to claim 3, wherein: the battery is a button type battery, the external connection part extends from the outer peripheral edge of the battery to the direction deviating from the battery pack, and one end of the external connection part deviating from the battery pack is welded with the welding hole on the outer peripheral edge of the PCB.

5. An endoscopy capsule according to claim 3, wherein: the battery is a button type battery, the external connection portion is arranged on the inner side of the outer peripheral edge of the battery and is back to the direction extending from the battery pack, and one end of the external connection portion, which is deviated from the battery pack, is welded with a bonding pad in the PCB.

6. An endoscopy capsule according to claim 3, wherein: one end of the external connection part, which is far away from the battery pack, is provided with a concave part.

7. An endoscopy capsule according to claim 1, wherein: the connecting sheet is a nickel plated SPCC steel sheet, a nickel sheet or a copper sheet.

8. An endoscopy capsule according to claim 1, wherein: the thickness of the connecting sheet is 0.05 mm-0.5 mm.

9. An endoscopy capsule according to any of claims 1 to 8, wherein:

the shell comprises an end cover and a main shell, and at least part of the end cover is transparent;

10. An endoscopy capsule according to any of claims 1 to 8, wherein: the PCB group comprises an image acquisition processing board and a power board which are connected through a flexible circuit board; the endoscope capsule further comprises a magnet unit arranged between the image acquisition processing board and the power board, the magnet unit comprises a magnet and a magnet fixing cover sleeved outside the magnet, and the magnet fixing cover is connected and fixed to the image acquisition processing board and the power board.