CN111257917A - Auxiliary device for ray dose measurement - Google Patents
Auxiliary device for ray dose measurement Download PDFInfo
- Publication number
- CN111257917A CN111257917A CN202010064755.3A CN202010064755A CN111257917A CN 111257917 A CN111257917 A CN 111257917A CN 202010064755 A CN202010064755 A CN 202010064755A CN 111257917 A CN111257917 A CN 111257917A
- Authority
- CN
- China
- Prior art keywords
- frame body
- support frame
- rotary
- connecting wire
- auxiliary device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/02—Dosimeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention discloses an auxiliary device for ray dose measurement, which comprises a supporting device, a rotating frame body and a rotary driving device, wherein the rotating frame body is rotatably arranged on the supporting device, and a groove for mounting a detection device is formed in the rotating frame body; the rotary driving device is arranged in the supporting device, a driving shaft of the rotary driving device is connected with the rotary frame body, and a power supply connecting wire of the rotary driving device and a data connecting wire of the detecting device are fixedly arranged in the rotary frame body and are led out from the same side of the supporting device to be connected with external equipment. This device simple structure, occupation space is little, can rationally arrange the connecting wire and walk the line, avoids the connecting wire to expose in the field of penetrating of measuring radiation, can effectively reduce dosimetry's error, improves the measuring accuracy, effectively protects the use of connecting wire, and the suitability is wider moreover.
Description
Technical Field
The invention relates to the technical field of auxiliary medical equipment, in particular to an auxiliary device for ray dose measurement.
Background
With the development of the radiotherapy technology, the intensity modulated radiotherapy technology reduces the irradiated volume of normal tissues through highly conformal irradiation, improves the target region dose to achieve higher tumor treatment gain ratio, and has the remarkable advantages of higher dose precision, dose conformality, geometric precision and the like compared with the traditional external irradiation technology. With the continuous development of computer technology, radiotherapy equipment and tumor radiotherapy concepts, the intensity modulated radiotherapy technology of the rotating cylinder, namely a three-dimensional verification tool of the volume rotating intensity modulated treatment plan, is generally adopted clinically at present. As shown in fig. 4, in the rotary cylinder type auxiliary device 7 adopted in the prior art, the technical implementation of the rotary cylinder requires the connecting rod 71 to be arranged on the supporting frames at the two ends to ensure the stability of the rotation of the device, and when the cylinder rotates 360 degrees, the connecting rod 71 is exposed in the field of the detection device 1, thereby affecting the accuracy of dose measurement. Moreover, the design of the cylindrical auxiliary device 7 will cause the power connection line 8 of the rotating electrical machine 6 and the data connection line 9 of the detecting device 1 to be connected from two opposite sides respectively when the wires are externally routed, so that one connection line is always exposed in the field range of the detecting device 1, thereby affecting the accuracy of dose measurement. Meanwhile, the irradiation time of the plastic outer layer of the connecting wire under rays is easy to age, so that the service life is shortened, and the normal use of the connecting wire is influenced. Moreover, the cylindrical structure of the cylindrical auxiliary device 1 in the prior art is not transparent, which is not beneficial to observation and positioning, and the cylindrical structure also increases the volume of the equipment, which causes the equipment to occupy too much space, and is not beneficial to daily handling and storage. In addition, the thickness requirement of the device with a cylindrical structure to the equivalent water mold body is fixed and not adjustable, so that the applicability of the device is poor. Therefore, the cylindrical structure device commonly used in the prior art cannot meet the high quality requirement of modern technology.
Disclosure of Invention
The invention aims to provide an auxiliary device for ray dosimetry measurement, which has a simple structure and small occupied space, can reasonably arrange connecting wires, avoid the connecting wires from being exposed in the field of radiation measurement, effectively reduce the error of dosimetry, improve the measurement accuracy, effectively protect the use of the connecting wires, and has wider applicability.
In order to solve the problems, the invention is realized according to the following technical scheme:
the invention provides an auxiliary device for ray dose measurement, which comprises:
a support device;
the rotary frame body is rotatably arranged on the supporting device and is provided with a groove for mounting the detection device;
the rotary driving device is arranged in the supporting device, a driving shaft of the rotary driving device is connected with the rotary frame body, a power supply connecting wire of the rotary driving device and a data connecting wire of the detecting device are fixedly arranged in the rotary frame body and are led out from the same side of the supporting device to be connected with external equipment.
Furthermore, the supporting device comprises a first supporting frame and a second supporting frame, and the rotating frame body is rotatably connected and arranged between the first supporting frame and the second supporting frame.
Furthermore, a control unit is arranged on the first support frame, the rotary driving device is arranged on the second support frame, and the rotary driving device is electrically connected with the control unit through the power supply connecting wire.
Furthermore, a partition board is further arranged on the groove and arranged below the detection device, a circuit layer with a cavity is formed between the partition board and the rotary frame body, and the data connection line and the power connection line are arranged in the circuit layer and are both led out of the first support frame to be connected with external equipment.
Further, detection device includes detector mainboard and equivalent water die body, the detector mainboard sets up on the baffle, the equivalent water die body sets up detector mainboard top.
Furthermore, a scale mark corresponding to the detection center of the detector main board is arranged on the side face of the rotating frame body, and the connecting line between the center of the scale mark and the detection center is parallel to the board face of the detector main board.
Furthermore, an opening is formed in the side face of the rotating frame body, and a data connecting port of the detection device is arranged at the position of the opening;
one end of the data connecting line is connected with the data connecting port, and the other end of the data connecting line enters from the opening and penetrates through the circuit layer and is connected with the control unit arranged in the first support frame.
Furthermore, the bottom of the first support frame and the second support frame is provided with an adjusting frame.
Furthermore, the adjusting bracket comprises a connecting frame and two supporting legs, and the two supporting legs are respectively movably connected with two sides of the connecting frame.
Further, the supporting legs are in threaded connection with the connecting pieces.
Compared with the prior art, the invention has the following beneficial effects:
the auxiliary device for measuring the radiation dose is characterized in that a rotating frame body provided with a groove is rotationally arranged on a supporting device, and the rotating frame body is driven by a rotating driving device arranged on the supporting device to rotate for 360 degrees, so that the 360-degree dose measurement is realized. The rotating frame body is directly rotated and arranged on the supporting device, and auxiliary fixing devices such as connecting rods do not need to be arranged, so that the rotating frame body is free from the influence of other objects in the shooting field of the detection device arranged on the rotating frame body when rotating by 360 degrees, the correction on software analysis can be effectively reduced, and the measurement error is reduced.
Meanwhile, the power connecting wires of the rotary driving device and the data connecting wires of the detection device are fixedly arranged in the rotary frame body and are led out from the same side of the supporting device, so that the connecting wires are prevented from being exposed in the field of the detection device to influence the accuracy of measurement, and the connecting wires can be effectively protected from being influenced by radiation to shorten the service life. Moreover, the connecting wires are fixedly arranged in the rotating frame body, so that the situation that the connecting wires are wound to cause poor connection and the like when the rotating frame body rotates can be avoided. In this device, the rotating frame body of cuboid form is littleer for the structure volume of cylinder type among the prior art, and overall height is lower when idle, and occupation space is littleer, is convenient for more transport and deposit. Moreover, the detection device is placed and fixed in the groove in a mode of arranging the groove on the cuboid-shaped rotary die body, the upper end of the groove is not sealed or limited, the thickness of the detection device can be adjusted according to requirements, the thickness of the equivalent water die body can be changed in conventional application, different requirements are met, and the applicability is wider.
Drawings
Embodiments of the invention are described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram of an auxiliary device for radiation dosimetry according to the invention;
FIG. 2 is a schematic structural view of a support frame shell removed by the auxiliary device for radiation dose measurement of the present invention;
FIG. 3 is a schematic structural diagram of another side view of an auxiliary device for radiation dosimetry according to the invention;
FIG. 4 is a schematic diagram of the external connection wires of a cylinder-type auxiliary device commonly used in the prior art according to the present invention;
FIG. 5 is a schematic diagram of the external connection wires of the auxiliary device for radiation dosimetry according to the present invention;
FIG. 6 is a schematic diagram of the internal connection lines of an auxiliary device for radiation dosimetry according to the present invention;
in the figure:
1-a detection device; 11-equivalent water phantom; 111-a via; 12-a detector motherboard; 2-rotating the frame body; 21-a separator; 22-cross scale line; 23-opening; 24-a connection hole; 25-a fastener; 26-a fixing member; 27-buckling; 31-a first support frame; 32-a second support; 4-adjusting the frame; 41-a connecting frame; 42-supporting feet; 5-a control unit; 6-a rotating electrical machine; 7-cylinder type device; 71 a connecting rod; 8-power connection line; 9-data connection line.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1 to 6, an auxiliary device for radiation dosimetry comprises a supporting device, a rotating frame body 2 and a rotation driving device, wherein the rotating frame body 2 is rotatably arranged on the supporting device, the rotation driving device is arranged in the supporting device, and a driving shaft of the rotation driving device is connected with the rotating frame body 2. The supporting device comprises a first supporting frame 31 and a second supporting frame 32 which are made of metal materials, a groove for mounting the detection device 1 is formed in the rotating frame body 2, and the rotating frame body 2 is rotatably connected between the first supporting frame 31 and the second supporting frame 32.
In this embodiment, the first support frame 31 and the second support frame 32 are made of an aluminum alloy material, so that deformation can be reduced for plastic parts, the aluminum alloy material has a light weight, the overall device is not too heavy, and stable support of the rotating frame body 2 can be ensured. And the lower parts of the two support frames are in an empty state, which is favorable for further reducing the weight of the device. Rotatory support body 2 is the cuboid form, and for the cylindrical structure in the current design, the volume is littleer, and weight is littleer, and the space that occupies is littleer, more convenient transportation and deposit, and it is lower relatively to strutting arrangement's support requirement moreover. A control unit 5 is arranged in the first support frame 31, in this embodiment the rotation driving means is a rotating electrical machine 6, wherein the control unit 5 is electrically connected to the rotating electrical machine 6 for controlling the rotation of the rotating electrical machine 6.
The rotating electrical machines 6 are arranged in the second support frame 32, and the driving shafts of the rotating electrical machines 6 are connected to the rotating frame body 2, and the driving shafts of the rotating electrical machines 6 drive the rotating frame body 2 to rotate 360 degrees. The control unit 5 is arranged in the first support frame 31, one end of a power supply connecting wire 8 of the rotating motor 6 is connected with the rotating motor 6, and the other end of the power supply connecting wire passes through the rotating frame body 2 and is connected with the control unit 5 arranged in the first support frame 31. The rotating frame body 2 is further provided with a partition plate 21, the partition plate 21 is arranged below the detection device 1, a circuit layer with a cavity is formed between the partition plate 21 and the rotating frame body 2, and the data connection line 9 of the detection device 1 and the power connection line 8 of the rotating motor 6 are arranged in the circuit layer and are both led out from the first support frame 31 to be connected with external equipment. Thereby guarantee that rotating electrical machines 6's power connecting wire 8 and detecting device 1's data connecting wire 9 can follow same one side and draw forth, avoid these connecting wires to expose in detecting device 1's the field, influence measuring accuracy, can effectively protect these connecting wires moreover not receive the influence of radiation and shorten life.
The detection device 1 comprises a detector main board 12 and an equivalent water mold body 11, wherein the detector main board 12 is arranged above the partition board 21, and the equivalent water mold body 11 is arranged above the detector main board 12. The rotating frame body 2 is provided with a fastening member 25 for fixing the detector main board 12, in this embodiment, the adopted fastening member 25 is a spring lock catch, and of course, other reasonable fastening members 25 may be adopted to fix the detector main board 12. The equivalent water mold body 11 is provided with a through hole 111, correspondingly, the rotating frame body 2 is provided with a connecting hole 24 corresponding to the through hole 111, and the equivalent water mold body 11 is fixed on the rotating frame body 2 through a fixing member 26 such as a bolt or a screw. The upper end of recess does not have the condition of sealing or restriction, therefore detection device 1's thickness can be adjusted according to the demand, and the certain of the thickness of detector mainboard 12, so can change the regulation to the thickness of equivalent water die body 11 to satisfy different demands, make the suitability of this device wider.
Be provided with the cross scale mark 22 corresponding with the detection center of detector mainboard 12 on the side of rotatory support body 2, the line of the center of cross scale mark 22 and detection center is on a parallel with the face of detector mainboard 12, is convenient for directly accurately realize the location of detector mainboard 12, convenient operation. The detection center refers to a rotation center of the detector main plate 12, i.e., a midpoint of a central axis in a rotation process of the detector main plate 12. After the detector main board 12 is installed at the position of the rotation center corresponding to the cross scale mark 22, the position of the detection center can be kept unchanged in the rotation process, so that the accuracy of dose measurement can be effectively ensured. Of course, in addition to this embodiment, the cross-shaped graduation 22 is not the only positioning graduation mark, and the cross-shaped graduation 22 may be replaced by other meter-shaped or conveniently aligned graduation marks according to specific requirements, and such design all belongs to the protection scope of the present invention.
In the prior art, the detector main board 12 is inserted into the cylinder structure, the silk-screen position on the equivalent water mold body 11 cannot be seen, and the position can be positioned only by the cross scale marks 22 on the cylinder, which easily causes errors. And in the design of this device, equivalent water mold body 11 is placed in the top of recess, does not have other parts to shelter from, and the silk screen printing position on equivalent water mold body 11 surface is clear visible, and convenient counterpoint is favorable to increasing the measuring accuracy. Still be provided with opening 23 on the side of rotatory support body 2, can more conveniently take out detection device 1 from rotatory support body 2 through opening 23, avoid detection device 1 to inlay completely in the recess and be difficult to take out, convenient operation.
The bottom of the first support frame 31 and the bottom of the second support frame 32 are both provided with an adjusting frame 4, the adjusting frame 4 comprises a connecting frame 41 and two support legs 42, the two support legs 42 are respectively arranged at two sides of the connecting frame 41, and the support legs 42 are in threaded connection with the support frames. The height of the device can be adjusted by rotating the supporting feet 42, and meanwhile, the detection device 1 on the rotating frame body 2 can be kept horizontal by adjusting the supporting feet 42.
As shown in fig. 4, in the cylindrical auxiliary device 7 commonly used in the prior art, when the wires are routed externally, the power connection wire 8 of the rotating electrical machine and the data connection wire 9 of the detecting device 1 are respectively connected from two opposite sides, so that one wire is always exposed in the field range of the detecting device 1, thereby affecting the dose measurement. Meanwhile, the irradiation time of the plastic under the rays is easy to age, the service life is short, and the use of the connecting wire is influenced.
As shown in fig. 5 to 6, in the auxiliary device for radiation dosimetry provided by the present invention, since the detecting device 1 can be placed on the rotating frame body 2 from top to bottom, the direction of wiring can be freely selected. Meanwhile, the arrangement and connection of various connecting wires are carried out through the circuit layer on the rotary frame body 2, so that the data connecting wire 9 of the detection device 1 and the power connecting wire 8 of the rotary motor 6 can be led out from the same direction, and the connecting wires are prevented from being exposed in the field of the detection device 1. Can effectively improve detection device 1 measuring accuracy, can effectively protect the connecting wire simultaneously, avoid the connecting wire to expose and receive the influence of radiation in detection device 1's the field and ageing with higher speed, and shorten the life-span of connecting wire.
Specifically, an opening 23 is formed on one side of the rotating frame body 2, and a data connection port of the detecting device 1 is formed at the position of the opening 23, so that the data connection line 9 of the detecting device 1 can extend out of the opening 23 and be connected with the detecting device 1. The other end of the data connection line 9 enters the circuit layer from the opening 23, passes through the circuit layer, enters the first support frame 31 and is electrically connected with the control unit 5, and then the data connection line 9 is led out from the first support frame 31 and is used for connecting external equipment to realize data transmission. The data connecting line 9 is fixedly connected with the rotating frame body 2 through a plurality of buckles 27 so as to prevent the power connecting line 8 from winding in the rotating process of the rotating frame body 2 to cause poor connection and other conditions.
One end of a power connecting wire 8 of the rotating motor 6 is connected with the rotating motor 6 arranged on the second support frame 32, and the other end of the power connecting wire extends out of the second support frame 32, enters the circuit layer, penetrates through the circuit layer, enters the first support frame 31, is connected with the control unit 5, and is led out of the first support frame 31 to be connected with power-on equipment such as a socket. The design of arranging along the edge in the circuit layer is taken place to rotating electrical machines 6's power connecting wire 8 to fix on rotatory support body 2 through a plurality of buckles 27, take place to twine at rotatory 2 rotatory in-process of rotatory support body in order to prevent power connecting wire 8 and lead to connecting the condition such as bad.
While the preferred embodiments of the present invention have been illustrated and described in detail, it should be understood that modifications and variations can be effected by one skilled in the art in light of the above teachings without undue experimentation. Therefore, any technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the present inventive concept should be within the scope of protection defined by the present claims.
Claims (10)
1. An assistive device for radiation dosimetry, comprising:
a support device;
the rotary frame body is rotatably arranged on the supporting device and is provided with a groove for mounting the detection device;
the rotary driving device is arranged in the supporting device, a driving shaft of the rotary driving device is connected with the rotary frame body, a power supply connecting wire of the rotary driving device and a data connecting wire of the detecting device are fixedly arranged in the rotary frame body and are led out from the same side of the supporting device to be connected with external equipment.
2. A radiation dosimetry aid device according to claim 1 wherein said support means comprises a first support frame and a second support frame, said rotating holder being rotatably coupled between said first support frame and said second support frame.
3. An auxiliary device for radiation dosimetry measurement according to claim 2, wherein a control unit is provided on the first support frame, the rotary drive device is provided on the second support frame, and the rotary drive device is electrically connected to the control unit through the power connection line.
4. An auxiliary device for radiation dosimetry measurement according to claim 1, wherein a partition is further disposed on the groove, the partition is disposed below the detection device, a circuit layer having a cavity is formed between the partition and the rotating frame, and the data connection line and the power connection line are disposed in the circuit layer and are both led out from the first support frame to connect to an external device.
5. An auxiliary device for ray dosimetry according to claim 1, wherein the detection device comprises a detector main board and an equivalent water mold body, the detector main board is disposed on the partition board, and the equivalent water mold body is disposed above the detector main board.
6. An auxiliary device for ray dosimetry measurement according to claim 5, wherein a scale mark corresponding to the detection center of the detector main plate is disposed on a side surface of the rotating frame body, and a line connecting the center of the scale mark and the detection center is parallel to the plate surface of the detector main plate.
7. An auxiliary device for radiation dosimetry measurement according to claim 1, wherein an opening is provided on a side surface of the rotating frame body, and a data connection port of the detection device is provided at a position of the opening;
one end of the data connecting line is connected with the data connecting port, and the other end of the data connecting line enters from the opening and penetrates through the circuit layer and is connected with the control unit arranged in the first support frame.
8. An auxiliary device for radiation dosimetry measurement according to claim 1, wherein the bottom of the first support frame and the second support frame are provided with adjusting brackets.
9. An auxiliary device for radiation dosimetry measurement according to claim 8, wherein the adjusting bracket comprises a connecting bracket and two supporting legs, and the two supporting legs are movably connected to two sides of the connecting bracket respectively.
10. An aid for dosimetry measurement according to claim 9, wherein the support foot is threadedly connected to the connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064755.3A CN111257917B (en) | 2020-01-20 | 2020-01-20 | Auxiliary device for ray dose measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064755.3A CN111257917B (en) | 2020-01-20 | 2020-01-20 | Auxiliary device for ray dose measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111257917A true CN111257917A (en) | 2020-06-09 |
| CN111257917B CN111257917B (en) | 2022-12-27 |
Family
ID=70945650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010064755.3A Active CN111257917B (en) | 2020-01-20 | 2020-01-20 | Auxiliary device for ray dose measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111257917B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206577258U (en) * | 2016-11-23 | 2017-10-24 | 中国医学科学院放射医学研究所 | A kind of positioner of gamma knife quality testing die body |
| CN107510898A (en) * | 2017-10-11 | 2017-12-26 | 上海联影医疗科技有限公司 | Light field, Beam's eye view device and the verification method of Medical Devices |
| US20190184197A1 (en) * | 2016-07-31 | 2019-06-20 | Alberta Health Services | Real-time mri-pet-guided radiotherapy system with dose-deposition verification |
-
2020
- 2020-01-20 CN CN202010064755.3A patent/CN111257917B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190184197A1 (en) * | 2016-07-31 | 2019-06-20 | Alberta Health Services | Real-time mri-pet-guided radiotherapy system with dose-deposition verification |
| CN206577258U (en) * | 2016-11-23 | 2017-10-24 | 中国医学科学院放射医学研究所 | A kind of positioner of gamma knife quality testing die body |
| CN107510898A (en) * | 2017-10-11 | 2017-12-26 | 上海联影医疗科技有限公司 | Light field, Beam's eye view device and the verification method of Medical Devices |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111257917B (en) | 2022-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5682892A (en) | Jig for positioning an instrument to be introduced into an object | |
| CN111257917B (en) | Auxiliary device for ray dose measurement | |
| TW200924599A (en) | Solid state drive (SSD) with open top and bottom covers | |
| CN104814751B (en) | X-ray equipment | |
| CN106555920A (en) | A kind of medical universal shooting Mobile trolley equipment | |
| CN212067475U (en) | Three-dimensional dose verification auxiliary device | |
| CN111888668A (en) | Die body for quality control of accelerator and application thereof | |
| CN208239955U (en) | A kind of computer CPU installation cavity of extendible capacity | |
| CN215608861U (en) | Isocenter detector of radiotherapy equipment | |
| CN218383794U (en) | Core board for data acquisition | |
| CN214766566U (en) | Automatic glue dispenser | |
| CN218824710U (en) | Quality control detection device of low-energy X-ray brachytherapy machine | |
| CN215272748U (en) | Chest lighting device for magnetic resonance imaging equipment | |
| CN210197065U (en) | Rotary zooming working lamp | |
| CN218348241U (en) | Display screen protection mechanism for foot bottom scanner | |
| CN215067722U (en) | Photoetching machine using marble platform | |
| CN214847190U (en) | Automatic radiotherapy simulation positioning device convenient to operate | |
| CN219869754U (en) | Detection box | |
| CN212086583U (en) | Integrated circuit packaging heating mechanism | |
| CN214311878U (en) | Integrated machine structure for calling and number taking | |
| CN217828107U (en) | Root canal therapy expands, synchronous measuring device and device base | |
| CN211180232U (en) | Radioactivity activity meter | |
| CN220324443U (en) | Integrated circuit packaging device | |
| CN215173701U (en) | Fixing device of visual medical monitoring camera instrument | |
| CN212136864U (en) | Automatic pin inserting machine for processing electronic connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |