CN208942084U - Capsule endoscope - Google Patents

Abstract

The utility model discloses a kind of capsule endoscope, including shell and it is located at the intracorporal camera unit of shell, data processing unit and antenna element, shell includes cylindrical center housing and is connected to center housing both ends and cover hemispherical, and the inner surface of antenna element close to center housing is arranged.The inner surface of the antenna element of the capsule endoscope of the utility model close to center housing is arranged, on the one hand, limited space inside capsule endoscope can be saved, improve capsule endoscope inner space utilization rate, on the other hand, the setting of antenna element will not influence the layout of camera unit, and applicability is high.

Description

Capsule endoscope

Technical field

The utility model relates to the field of medical instrument technology more particularly to a kind of capsule endoscopes.

Background technique

Capsule endoscope has become effective equipment of disease of digestive tract diagnosis due to its high reliability, high security at present, Receive the highly recognition of International Medical instrument field.Capsule endoscope has camera unit, data processing unit and wireless Transmission unit etc. can be during passing through alimentary system to organs such as stomach or intestines by being swallowed from mouth by examinee It is shot, and external reception device is sent by wireless transmission by photographing information, these information are connect by external reception device It receives, then shows on the display device.No pain, hurtless measure human gastrointestinal tract wriggling state under, medical staff can basis The image of display on the display device carries out the diagnosis of enterogastric diseases to examinee.

There is better subject to test effect for the conventional endoscope that compares inspection, the capsule endoscope for being wirelessly transferred form, And vivider alimentary canal image can be presented.However, Wireless capsule endoscope is confined to slight capsule-type due to its system In shell, therefore often there is very high requirement to wireless transmission unit, can effectively enhance reception of wireless signals sensitivity and standard Under the premise of exactness, smaller szie, more optimized structure are needed, so as to be integrated into inside limited capsule housing.

Existing capsule endoscope is in the upper also many problems of wireless signal transmitting-receiving, and leading to capsule endoscope, there are picture numbers Phenomena such as according to discontinuous, image packet loss, the main reason is that capsule endoscope wireless signal is unstable, antenna performance consistency compared with Difference.In this case, the problems such as being easy to appear mistaken diagnosis, failing to pinpoint a disease in diagnosis increases difficulty to the diagnosis of capsule endoscope.

The prior art is related to a kind of columnar antenna, in order to improve antenna performance, is provided with two in one end of capsule endoscope A antenna, on the one hand, need to occupy a big chunk space inside capsule endoscope, on the other hand, columnar antenna has up and down The unstable situation of space performance, to phenomena such as data packetloss occur.

The prior art is related to another circular polarized antenna, and antenna is constituted using metal radiant panel, and the columnar antenna that compares can A part of space is saved, but will appear the unstable situation of wireless signal always, meanwhile, such antenna needs to be placed on capsule end End, for using the capsule endoscope of front and back twin-lens not applicable.

In view of this, it is necessary to provide a kind of improved capsule endoscopes, to solve the above technical problems.

Summary of the invention

The purpose of this utility model is to provide a kind of capsule endoscopes, can save limited inside capsule endoscope Capsule endoscope inner space utilization rate is improved in space.

To realize one of above-mentioned purpose of utility model, the utility model provides a kind of capsule endoscope, including shell and position In the intracorporal camera unit of the shell, data processing unit and antenna element, the shell includes cylindrical center housing And it is connected to the center housing both ends and cover hemispherical, inner surface of the antenna element close to the center housing Setting.

The antenna element includes flexible parent metal and is set to the flexible base as a further improvement of the utility model, Antenna on material, the antenna loop around the center housing axis and extend spirally in the axial direction.

The antenna includes the first end and second end being oppositely arranged as a further improvement of the utility model, described First end and the second end are respectively arranged at two ends on the flexible parent metal with maximum distance.

The straight line parallel that the first end and the second end are formed as a further improvement of the utility model, is in described The axis direction of center housing.

As a further improvement of the utility model, when the antenna element is in unfolded state, the antenna is in line Shape is laid on the flexible parent metal.

The first boundary is respectively formed between the center housing and two covers as a further improvement of the utility model, Area and the second junctional area, the flexible parent metal include the first end and the second end being oppositely arranged, the first end setting In first junctional area, the second end is set to second junctional area.

The flexible parent metal further includes connecting the first end and described as a further improvement of the utility model, The interconnecting piece of two ends, when the flexible parent metal is in unfolded state, the first end, the interconnecting piece and described second End connection is in " Z " type.

The antenna includes the first end, second end and connection being oppositely arranged as a further improvement of the utility model, The linkage section of the first end and the second end, the first end are located at the first end, and the second end is located at described The second end, interconnecting piece described in the linkage section approach.

The capsule endoscope further includes being located at first junctional area as a further improvement of the utility model, And the first circuit board and second circuit board of second junctional area, and connect the first circuit board and the second circuit The flexible circuit board of plate, the camera unit include being located in two covers and being separately connected the first circuit board and institute State the first camera and second camera of second circuit board, the antenna and the first circuit board and/or second electricity Road plate is electrically connected.

The length range of the antenna is 30mm ~ 32mm as a further improvement of the utility model,.

The width range of the antenna is 0.1mm ~ 2mm as a further improvement of the utility model,.

Compared with prior art, the utility model has the beneficial effects that: the antenna of the capsule endoscope of the utility model The inner surface of unit close to the center housing is arranged, on the one hand, can save limited space inside capsule endoscope, improve Capsule endoscope inner space utilization rate, on the other hand, the setting of antenna element will not influence the layout of camera unit, applicability It is high.

Detailed description of the invention

Fig. 1 is the capsule endoscope cross-sectional view of the utility model first embodiment；

Fig. 2 is that the antenna element of the utility model first embodiment is in the schematic diagram of unfolded state；

Fig. 3 is that the antenna element of the utility model first embodiment is in the schematic diagram of winding state；

Fig. 4 is that the antenna element of the utility model second embodiment is in the schematic diagram of unfolded state；

Fig. 5 is that the antenna element of the utility model third embodiment is in the schematic diagram of unfolded state.

Specific embodiment

The utility model is described in detail below with reference to specific embodiment shown in the drawings.But these embodiment party Formula is not intended to limit the utility model, structure that those skilled in the art are made according to these embodiments, method or Transformation functionally is all contained in the protection scope of the utility model.

In each diagram of the application, for the ease of illustration, structure or partial certain sizes can be relative to other knots Structure or part are exaggerated, and therefore, are only used for the basic structure of the theme of diagram the application.

In addition, the term of the representation space relative position used herein such as "upper", " top ", "lower", " lower section " is A unit as shown in the drawings or feature are described for the purpose convenient for explanation relative to another unit or feature Relationship.The term of relative space position can be intended to include equipment in use or work other than orientation as shown in the figure not Same orientation.For example, being described as being located at other units or feature " below " or " under " if the equipment in figure overturn Unit will be located at other units or feature " top ".Therefore, exemplary term " lower section " can include above and below both Orientation.Equipment can otherwise be directed (be rotated by 90 ° or other directions), and be interpreted accordingly it is used herein with it is empty Between relevant description language.

Join Fig. 1, is the cross-sectional view of the capsule endoscope 100 of the utility model first embodiment.

Capsule endoscope 100 includes shell 10 and circuit board assemblies 11, camera unit 12, illumination list in shell 10 Member 13, radio frequency transmission unit 14, antenna element 15, permanent magnet 16, motion sensor 17, battery 18 and data processing unit 19.

Shell 10 is including cylindrical center housing 101 and is connected to 101 both ends of center housing and cover hemispherical Body 102.

Here, center housing 101 is opaque shell, and cover 102 is transparent shell, and center housing 101 and cover 102 can To be assembled to again together after being separately formed, but not limited to this.

It should be noted that shell 10 is not limited to as capsule-type shell as shown in Figure 1, it can also be in olive ball-type Or other shapes.

The first junctional area S1 and the second junctional area S2 is respectively formed between center housing 101 and two covers 102.

Circuit board assemblies 11 include positioned at the first circuit board 111 of the first junctional area S1 and the second junctional area S2 and the second electricity Road plate 112.

Here, first circuit board 111 and second circuit board 112 are printed circuit board (PCB, Printed Circuit Board), circuit board assemblies 11 further include being electrically connected the flexible circuit board of first circuit board 111 and second circuit board 112 (not Diagram), in this way, first circuit board 111 and second circuit board 112 can be located at the first friendship with the bending of relative flexibility circuit board Battery limit (BL) S1 and the second junctional area S2.

First circuit board 111 and second circuit board 112 can be round circuit board, and flexible circuit board can be close to center housing 101 inner surface 1011 is arranged, to reduce the occupied space of circuit board assemblies 11.

It should be noted that first circuit board 111 and second circuit board 112 can be independent circuit board, also can wrap Multiple circuit boards are included, for example, first circuit board 111 wraps according to the layout and Demand Design of 100 internal component of capsule endoscope Multiple small circuit boards are included, and is realized and is electrically connected by flexible circuit board between multiple small circuit boards.

Camera unit 12 includes the first camera 121 and the second camera 122 being located in two covers 102.

Here, the first camera 121 is connected in one side of the first circuit board 111 far from second circuit board 112, and second takes the photograph It is connected in one side of the second circuit board 112 far from first circuit board 111 as first 122, the first camera 121 and second camera 122 can be traditional cmos image sensor.

Lighting unit 13 includes surrounding the first illumination group 131 of the first camera 121 setting and around second camera 122 The second illumination group 132 being arranged, the first illumination group 131 and the second illumination group 132 can separately include several LED light, several LED Lamp is evenly distributed on the surrounding of corresponding camera.

Radio frequency transmission unit 14, antenna element 15, permanent magnet 16, motion sensor 17, battery 18 and data processing unit 19, which are respectively positioned on center housing 101, encloses and sets in the accommodation space S to be formed, and radio frequency transmission unit 14, antenna element 15, permanent magnet 16, motion sensor 17, battery 18 and data processing unit 19 are electrically connected with circuit board assemblies 11, to realize between signal Interaction.

Radio frequency transmission unit 14 and the combination of antenna element 15 form wireless communication module.

Radio frequency transmission unit 14 is located at second circuit board 112 close to the side of first circuit board 111, radio frequency transmission unit 14 It is electrically connected with second circuit board 112, antenna element 15.

Radio frequency transmission unit 14 is used to convert electric signal for radiofrequency signal.

The inner surface 1011 of antenna element 15 close to center housing 101 is arranged.

Here, antenna element 15 is laminated structure, " close to " refer to that the one side of antenna element 15 is neighbouring or direct contact in The inner surface 1011 of heart shell 101, and can be fixed by viscose between antenna element 15 and inner surface 1011 and improve antenna The stability of 15 position of unit, and be conducive to the assembly of antenna element 15.

Permanent magnet 16 is used to that permanent magnet can be passed through with external control device mutual cooperation (not shown), external control device 16 control capsule endoscopes 100 are in carrying out active movement in examinee's body.

Motion sensor 17 is used to obtain the pose motion information of capsule endoscope 100, and motion sensor 17 can will be non- Electricity (such as speed, pressure) change transitions are electric quantity change, consequently facilitating the movement to capsule endoscope 100 carries out active control System.

Battery 18 is used to power for other component.

Data processing unit 19 is used for camera unit 12, radio frequency transmission unit 14, photographic device 13, motion sensor 17 Deng data information the processing such as compressed, convert, parse.

In addition, data processing unit 19 can produce illumination control signal also to control the illumination intensity of lighting unit 13, count According to processing unit 19 data communication can be realized by radio frequency transmission unit 14 and external host.

The inner surface 1011 of the antenna element 15 of the capsule endoscope 100 of present embodiment close to center housing 101 is arranged, On the one hand, the 100 limited space in inside of capsule endoscope can be saved, improves 100 inner space utilization rate of capsule endoscope, separately On the one hand, the setting of antenna element 15 will not influence the layout of camera unit 12, and applicability is high, the antenna element of present embodiment 15 are suitable for the Wireless capsule endoscope using front camera and rear camera structure.

In conjunction with Fig. 2 and Fig. 3, antenna element 15 includes flexible parent metal 151 and the antenna 152 being set on flexible parent metal 151, Antenna 152 surround the axis of center housing 101 and extends spirally in the axial direction.

Here, antenna 152 is copper wire, and flexible parent metal 151 is, for example, polyester film flexible, by by copper wire welding in poly- Antenna element 15 is formed on ester film.

Copper wire diameter range is in 0.1mm-2mm.

The antenna element 15 of present embodiment has the advantages such as small in size, light-weight, bent, facilitates antenna element 15 It is placed in the inside of capsule type endoscope 100.

In addition, antenna element 15 is set around the inner surface 1011 of center housing 101, so that antenna 152 can be helically Shape winding setting, in this way, the space length of antenna 152 can be improved, to improve 152 radiance of antenna.

One end of antenna 152 is electrically connected with first circuit board 111 and/or second circuit board 112, for example, passing through welding manner Realization is electrically connected.

Specifically, flexible parent metal 151 includes the first end 1511, the second end 1512 that are oppositely arranged, and connection the The interconnecting piece 1513 of one end 1511 and the second end 1512.

First end 1511 is set to the first junctional area S1, and the second end 1512 is set to the second junctional area S2.

Antenna 152 includes first end 1521, the second end 1522 being oppositely arranged, and connection first end 1521 and second end 1522 linkage section 1523.

First end 1521 is located at the first end 1511 of flexible parent metal 151, and second end 1522 is located at the second end 1512, even Connect 1523 approach interconnecting piece 1513 of section.

Here, first end 1521 and second end 1522 are respectively arranged at two with maximum distance on flexible parent metal 151 End.

In conjunction with Fig. 2, it is possible to understand that, the distance between diagonally opposing corner of flexible parent metal 151 maximum, at this time first end 1521 and Second end 1522 is located at the corner of two formation diagonally opposing corners of flexible parent metal 151, in this way, can further improve antenna 152 Space length.

When antenna element 15 is in unfolded state, antenna 152 is linear to be laid on flexible parent metal 151.

Here, antenna 152 is by taking a copper wire as an example, i.e., antenna 152 is unipole antenna at this time, and but not limited to this.

It should be noted that " threadiness " can refer to straight line, curve or broken line etc..

For example, being in when being influenced by the size of capsule endoscope 100, frequency range or other interior design factors When the antenna 152 that " straight line " is laid can no longer meet layout, it may be considered that " curve " or " broken line " is laid.

Specifically, assuming do not changing antenna at this point, antenna 152 needs longer length using 868-915MHz frequency range In the case that 15 other parts of unit design, antenna 152 can be designed to " curve " or " broken line " form, in limited sky The interior extension for realizing antenna 152.

In conjunction with Fig. 3, when antenna element 15 is in winding state, 1522 shape of first end 1521 and second end of antenna 152 At straight line parallel in the axis direction of center housing 101.

That is, at this time antenna 152 on the sagittal plane of center housing 101 be projected as one it is complete round.

In the following, introducing several specific examples of the antenna element 15 of present embodiment.

In conjunction with Fig. 2 and Fig. 3, in the first example, when flexible parent metal 151 is in unfolded state, first end 1511 connects Socket part 1513 and the connection of the second end 1512 are in " Z " type, and antenna 152 is laid in diagonal line.

First end 1511 and the second end 1512 are generally rectangular shaped, and first end 1511 is approximately equal to the length to center shell The half of 101 perimeter of body, the length of the second end 1512 are also approximately equal to the half of 101 perimeter of center housing, work as antenna element 15 when being wrapped like state, and first end 1511 only takes up the side space (such as leftward space) of the first junctional area S1, second end Portion 1512 only takes up the side space (such as right side of the space) of the second junctional area S2, and first end 1511, the second end 1512 The space occupied is opposite two sides space, can be further improved antenna element 15 and matches with 101 inner surface 1011 of center housing The stability of conjunction, and may make the structure inside capsule endoscope 100 more compact, it avoids increasing the straight of capsule endoscope 100 Diameter.

In addition, can be fixed by viscose between first end 1511, the second end 1512 and inner surface 1011, interconnecting piece It can also be fixed by viscose between 1513 and inner surface 1011.

The benefit designed in this way is furthermore that: (1) first end 1511 of flexible parent metal 151 and the second end 1512 are big Cause to be in rectangle, the contact area between the inner surface 1011 of first end 1511, the second end 1512 and center housing 101 compared with Greatly, the stability that antenna element 15 is combined with inner surface 1011 can be improved；(2) periphery of interconnecting piece 1513 is area of knockout, On the basis of guaranteeing that flexible parent metal 151 can carry antenna 152, the area of antenna element 15 is minimized, to save capsule The inner space of endoscope 100, so that the structure inside capsule endoscope 100 is more compact；(3) material is saved, is effectively reduced Cost；(4) assembly is simple, even if 15 size of antenna element has certain deviation, can also be easy to be assembled in center housing 101；(5) Antenna element 15 can effectively avoid flexible circuit board.

It is flexible when flexible parent metal 151a is in unfolded state in the utility model second embodiment in conjunction with Fig. 4 Substrate 151a is integrally in rectangle, and antenna 152a is laid in diagonal line.

It is flexible when flexible parent metal 151b is in unfolded state in the utility model third embodiment in conjunction with Fig. 5 Substrate 151b entirety parallelogram, the long side that antenna 152b is parallel to parallelogram are laid.

In the present embodiment, in order to make capsule endoscope 100 work 2.4GHz citizens' radio band, the length of antenna 152 Degree range is 30mm ~ 32mm.

Preferably, 152 length of antenna is 31mm.

Here it is possible to adjust the length of antenna 152 according to frequency range demand.

The width range of antenna 152 is 0.1mm ~ 2mm.

The setting principle of antenna 152 includes: that 152 length of (1) antenna is matched with 100 size of capsule endoscope；(2) as far as possible 100 inner space of saving capsule endoscope.

In addition, the calculation formula of 152 length of antenna are as follows:

Wherein, c is the light velocity, and f is 152 working frequency of antenna.

It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book With the other embodiments of understanding.

Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model Equivalent implementations or change should be included within the scope of protection of this utility model.

Claims (11)

1. a kind of capsule endoscope, which is characterized in that including shell and be located at the intracorporal camera unit of the shell, data processing list Member and antenna element, the shell include cylindrical center housing and are connected to center housing both ends and hemispherical Cover, the antenna element close to the center housing inner surface be arranged.

2. capsule endoscope according to claim 1, which is characterized in that the antenna element includes flexible parent metal and setting Antenna on the flexible parent metal, the antenna loop around the center housing axis and extend spirally in the axial direction.

3. capsule endoscope according to claim 2, which is characterized in that the antenna include the first end being oppositely arranged and Second end, the first end and the second end are respectively arranged at two ends on the flexible parent metal with maximum distance.

4. capsule endoscope according to claim 3, which is characterized in that the first end and the second end are formed straight Line is parallel to the axis direction of the center housing.

5. capsule endoscope according to claim 3, which is characterized in that when the antenna element is in unfolded state, The antenna is linear to be laid on the flexible parent metal.

6. capsule endoscope according to claim 2, which is characterized in that between the center housing and two covers respectively The first junctional area and the second junctional area are formed, the flexible parent metal includes the first end and the second end being oppositely arranged, described First end is set to first junctional area, and the second end is set to second junctional area.

7. capsule endoscope according to claim 6, which is characterized in that the flexible parent metal further includes connection described first The interconnecting piece of end and the second end, when the flexible parent metal is in unfolded state, the first end, the connection Portion and the second end connection are in " Z " type.

8. capsule endoscope according to claim 7, which is characterized in that the antenna include the first end being oppositely arranged, Second end and the linkage section for connecting the first end and the second end, the first end are located at the first end, and described the Two ends are located at the second end, interconnecting piece described in the linkage section approach.

9. capsule endoscope according to claim 6, which is characterized in that the capsule endoscope further includes being located at institute State the first circuit board and second circuit board of the first junctional area and second junctional area, and the connection first circuit board and The flexible circuit board of the second circuit board, the camera unit include being located in two covers and being separately connected described the The first camera and second camera of one circuit board and the second circuit board, the antenna and the first circuit board and/ Or the second circuit board is electrically connected.

10. capsule endoscope according to claim 2, which is characterized in that the length range of the antenna be 30mm ~ 32mm。

11. capsule endoscope according to claim 2, which is characterized in that the width range of the antenna be 0.1mm ~ 2mm。