CN109431575A - A kind of easily sliding object extractor of ear-nose-throat department - Google Patents
A kind of easily sliding object extractor of ear-nose-throat department Download PDFInfo
- Publication number
- CN109431575A CN109431575A CN201811253782.4A CN201811253782A CN109431575A CN 109431575 A CN109431575 A CN 109431575A CN 201811253782 A CN201811253782 A CN 201811253782A CN 109431575 A CN109431575 A CN 109431575A
- Authority
- CN
- China
- Prior art keywords
- subtended angle
- elastic
- angle control
- elastic yarn
- adjustment
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/24—Surgical instruments, devices or methods, e.g. tourniquets for use in the oral cavity, larynx, bronchial passages or nose; Tongue scrapers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/50—Instruments, other than pincettes or toothpicks, for removing foreign bodies from the human body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
- A61B2090/309—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure using white LEDs
Abstract
The invention belongs to ear-nose-throat department the field of medical instrument technology, more particularly to a kind of easily sliding object extractor of ear-nose-throat department, including transparent cylinder and elastic yarn, the transparent cylinder is transparent hollow tubulose, the elastic yarn is transparent material, the transparent cylinder sets hinged subtended angle control pipe close to one end of the elastic yarn, and the transparent cylinder is rotatably connected to subtended angle adjustment swivel nut far from one end of the elastic yarn；The subtended angle control pipe controlled by subtended angle control sleeve is equipped in the front end of transparent cylinder, when using, the angle of subtended angle control pipe is can be changed in rotation subtended angle adjustment swivel nut, the change to elastic yarn subtended angle not only may be implemented, elastic adjusting nut is cooperated to change the length of elastic yarn, and pipe is controlled by subtended angle and forms certain support, device is set to be easy manipulation, improve the reliability of foreign body, it is easy the light filling to treatment site, adjustment extraneous light is not needed, the convenience for the treatment of and the accuracy for the treatment of are substantially increased.
Description
Technical field
The invention belongs to ear-nose-throat department the field of medical instrument technology, and in particular to a kind of easily sliding object taking-up of ear-nose-throat department
Device.
Background technique
Common patient is exactly to have foreign matter in organ in ear-nose-throat department, oneself does not take not come out, and hospital can only be gone to pass through doctor
Foreign matter is taken out with the extractor of profession, clinically, foreign matter is entered in nasal cavity, causing rhinostegnosis is a kind of common acute disease disease
Example usually uses cerumen hook by foreign body.
Cerumen hook is easy to damage nasal wall, and efficiency is lower, for this purpose, application No. is CN201220588062.5's
Patent of invention proposes a kind of device for taking foreign bodies out of nasal, including a hollow shank, it is characterised in that: shank front end is equipped with one
Flexible glue head, rear end are equipped with a threaded post partially protruded into shank, and threaded post is equipped with the adjusting set being threadedly engaged；One bullet
Sex pilus is in U-shape placement, and both ends pass through flexible glue head and enter in shank, and both ends are fixedly connected with threaded post lower end, but its scheme
It has the following problems:
1, the subtended angle of elastic yarn is not easy to be controlled, and with shank contact portion without support, so being taken out operation
When, it is not easy to it is accurately controlled, increases the activity duration, or even increase treatment risk；
2, exterior lighting source is needed to carry out light filling, not only light point of irradiation needs to adjust, and cannot guarantee that photograph when operation
Bright, this foreign body operation for just awarding patient brings extremely inconvenient.
Summary of the invention
To solve the problems mentioned above in the background art.The present invention provides a kind of easily sliding objects of ear-nose-throat department to take out
Device, has easily controllable, and can carry out lighting characteristics.
To achieve the above object, the invention provides the following technical scheme: a kind of ear-nose-throat department, which is used, easily slides object extractor, including
Transparent cylinder and elastic yarn, the transparent cylinder are transparent hollow tubulose, and the elastic yarn is transparent material, the transparent cylinder
Hinged subtended angle control pipe is set close to one end of the elastic yarn, the transparent cylinder is rotatablely connected far from one end of the elastic yarn
There is subtended angle to adjust swivel nut, the inner wall of the transparent cylinder slidably connects subtended angle control sleeve, the subtended angle control sleeve it is interior
Wall has been in axial sliding connection elastic adjustment sleeve, passes through subtended angle tune between the subtended angle adjustment swivel nut and the subtended angle control sleeve
Whole screw-driven connection, the elastic yarn manage through subtended angle control and are fixed on the elastic adjustment sleeve far from described
Angle adjusts one end end face of swivel nut, the subtended angle control pipe and subtended angle control sleeve transmission connection, the subtended angle tune
Whole swivel nut is rotatably connected to elastic adjusting nut far from one end of the transparent cylinder, is fixed with pine on the elastic adjusting nut
Tight adjustment screw, the elastic adjustment screw are connected to the elastic adjusting sleeve by elastic adjustment screw-driven by cable hole
The inner wall of cylinder, the elastic adjustment sleeve are equipped with headlamp close to one end of the elastic yarn, and the headlamp passes through helix
Cable and luminous lamp switch are electrically connected, and the luminous lamp switch is located at the end face outside of the elastic adjusting nut.
Preferably, the subtended angle control sleeve adjusts rack gear there are two subtended angle close to one end of the elastic yarn is fixed, and two
A subtended angle adjustment rack gear adjusts gear with the subtended angle and engages connection by latch, and the subtended angle adjustment rack gear is transparent material
Matter.
Preferably, the length of the subtended angle control pipe is five millimeters, the subtended angle control pipe and the elastic yarn basic shaft system
Clearance fit.
Preferably, the both ends of the inner wall smooth of the subtended angle control pipe, the subtended angle control pipe all have smooth fillet.
Preferably, the luminous lamp switch is deflector rod switch, and the inside of the elastic adjusting nut is equipped with battery, described
Cable hole and the battery of the spiral cable inside the elastic adjustment screw are electrically connected.
Preferably, the outer wall of the subtended angle adjustment swivel nut has annular knurl line, has within outer wall one week of the elastic adjusting nut
There is axial form friction pattern.
Preferably, it is in axial sliding connection between the subtended angle control sleeve and the elastic adjustment sleeve by spline.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention is equipped with the subtended angle control pipe controlled by subtended angle control sleeve in the front end of transparent cylinder, when using
The angle that subtended angle adjustment swivel nut is changeable subtended angle control pipe is rotated, the change to elastic yarn subtended angle not only may be implemented, cooperate
Elastic adjusting nut changes the length of elastic yarn, is easy to control the size of elastic yarn, and is formed by subtended angle control pipe certain
Support makes device be easy manipulation, improves the reliability of foreign body.
2, the present invention is equipped with headlamp in the front end of elastic adjustment sleeve, and elastic yarn and transparent cylinder are transparent material
Matter realizes the propagation of light, is easy the light filling to treatment site, does not need adjustment extraneous light, substantially increases the convenience for the treatment of
With the accuracy for the treatment of.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is that the subtended angle in the present invention controls pipe structural schematic diagram；
Fig. 3 is subtended angle control sleeve and elastic adjustment sleeve sectional view in the present invention；
In figure: 1, transparent cylinder；2, subtended angle control pipe；21, subtended angle adjusts gear；3, subtended angle control sleeve；31, subtended angle tune
Whole rack gear；311, latch；32, subtended angle adjusts swivel nut；321, subtended angle adjusts screw thread；4, elastic adjustment sleeve；5, elastic yarn；6, it shines
Bright lamp；61, spiral cable；62, luminous lamp switch；7, elastic adjusting nut；71, elastic adjustment screw；72, cable hole；73, loose
Tight adjustment screw thread.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment
Fig. 1-3 is please referred to, the present invention easily slides object extractor the following technical schemes are provided: a kind of ear-nose-throat department is used, including saturating
Placket body 1 and elastic yarn 5, transparent cylinder 1 are transparent hollow tubulose, and elastic yarn 5 is transparent material, can be guaranteed with transmitted light
Illuminating effect, transparent cylinder 1 set hinged subtended angle control pipe 2 close to one end of elastic yarn 5, transparent cylinder 1 far from elastic yarn 5 one
End is rotatably connected to subtended angle adjustment swivel nut 32, and the inner wall of transparent cylinder 1 slidably connects subtended angle control sleeve 3, subtended angle control set
The inner wall of cylinder 3 has been in axial sliding connection elastic adjustment sleeve 4, and subtended angle adjusts between swivel nut 32 and subtended angle control sleeve 3 by opening
Angle adjusts screw thread 321 and is sequentially connected, and realizing subtended angle control pipe 2 makes the curature variation of elastic yarn 5, different size of different to adapt to
Object, elastic yarn 5 is through subtended angle control pipe 2 and is fixed on one end end face of the elastic adjustment sleeve 4 far from subtended angle adjustment swivel nut 32,
Angle controls pipe 2 and subtended angle control sleeve 3 is sequentially connected, and subtended angle adjustment swivel nut 32 is rotatably connected to far from one end of transparent cylinder 1
Elastic adjusting nut 7, elastic adjustment screw 71 is fixed on elastic adjusting nut 7, and elastic adjustment screw 71 passes through cable hole 72
By elastic adjustment screw thread 73 transmission connection in the inner wall of elastic adjustment sleeve 4, the change to 5 length of elastic yarn may be implemented,
Elastic adjustment sleeve 4 is equipped with headlamp 6 close to one end of elastic yarn 5, and headlamp 6 passes through spiral cable 61 and luminous lamp switch 62
It is electrically connected, luminous lamp switch 62 is located at the end face outside of elastic adjusting nut 7.
Specifically, subtended angle control sleeve 3 is fixed there are two subtended angle adjustment rack gear 31 close to one end of elastic yarn 5, two are opened
Angle adjusts rack gear 31 and engages connection by latch 311 with subtended angle adjustment gear 21, when subtended angle adjustment swivel nut 32 rotates, subtended angle control
By the axial thrust that subtended angle adjustment screw thread 321 generates axial movement is occurred for sleeve 3 processed, drives subtended angle to adjust rack gear therewith
31 are moved, and subtended angle adjusts rack gear 31 and engages with subtended angle adjustment gear 21, and subtended angle adjustment gear 21 is made to generate angle
Change, realizing subtended angle control pipe 2 makes the curature variation of elastic yarn 5, and to adapt to different size of foreign matter, subtended angle adjusts rack gear 31
For transparent material, it can guarantee illuminating effect with transmitted light.
Specifically, subtended angle control pipe 2 length be five millimeters, by shorter volume avoid due to subtended angle it is excessive and to nose
Cavity wall damages, and subtended angle controls pipe 2 and 5 basic shaft system clearance fit of elastic yarn, facilitates elastic yarn 5 in subtended angle control pipe 2
Inner wall is free to slide.
Specifically, the inner wall smooth of subtended angle control pipe 2, due to the inner wall smooth of subtended angle control pipe 2, elastic yarn 5 can be certainly
By slided in subtended angle control pipe 2, when the rotation of elastic adjusting nut 7, drive elastic adjustment screw 71 to rotate, elastic adjustment
Axial transmission is carried out by elastic adjustment screw thread 73 between screw rod 71 and elastic adjustment sleeve 4, elastic adjustment sleeve 4 then drives
In the inner wall sliding of subtended angle control pipe 2, the both ends of subtended angle control pipe 2 all have smooth fillet, reduce subtended angle control elastic yarn 5
The abrasion of pipe 2.
Specifically, luminous lamp switch 62 is deflector rod switch, the inside of elastic adjusting nut 7 is equipped with battery, spiral cable
61 cable hole 72 and battery inside elastic adjustment screw 71 is electrically connected, and headlamp 6 is LED light, and battery is knob
Battery is detained, electrical connection is realized due to passing through spiral cable 61 between headlamp 6 and battery, so at 7 turns of elastic adjusting nut
When dynamic, the reliability of electrical connection can be still kept, the situation that breaks will not occur.
Specifically, the outer wall of subtended angle adjustment swivel nut 32 has annular knurl line, outer wall one week of elastic adjusting nut 7 has axial
Form friction pattern, can be convenient medical staff swivel nut 32 and elastic adjusting nut 7 adjusted to subtended angle when in use and accurately controlled
System, and conveniently it is rotated.
Specifically, being in axial sliding connection between subtended angle control sleeve 3 and elastic adjustment sleeve 4 by spline, it is ensured that
Axial transmission only may be implemented in subtended angle control sleeve 3 and elastic adjustment sleeve 4, without rotating, so personnel convenient to use
It is controlled.
The working principle of the invention and process for using: when subtended angle adjustment swivel nut 32 rotate when, subtended angle control sleeve 3 by
Angle adjusts the axial thrust that screw thread 321 generates and axial movement occurs, and subtended angle adjustment rack gear 31 is driven to be moved therewith,
Angle adjusts rack gear 31 and engages with subtended angle adjustment gear 21, so that subtended angle adjustment gear 21 is generated the change of angle, realizes and open
Angle control pipe 2 makes the curature variation of elastic yarn 5, to adapt to different size of foreign matter, and is formed by subtended angle control pipe 2 certain
Support makes device be easy manipulation, improves the reliability of foreign body, when the rotation of elastic adjusting nut 7, drives elastic adjustment spiral shell
Bar 71 rotates, and carries out axial transmission by elastic adjustment screw thread 73 between elastic adjustment screw 71 and elastic adjustment sleeve 4, pine
Tight adjustment sleeve 4 then drives elastic yarn 5 in the inner wall sliding of subtended angle control pipe 2, and the both ends of subtended angle control pipe 2 all have smooth
Fillet, reduces the abrasion of subtended angle control pipe 2, opens headlamp 6 by luminous lamp switch 62, leads between headlamp 6 and battery
It crosses spiral cable 61 and realizes electrical connection, so can still keep the reliability of electrical connection, no in the rotation of elastic adjusting nut 7
Broken string situation can occur and realize the propagation of light since elastic yarn 5 and transparent cylinder 1 are transparent material, be easy to treatment site
Light filling does not need adjustment extraneous light, substantially increases the convenience for the treatment of and the accuracy for the treatment of.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (7)
1. a kind of ear-nose-throat department easily sliding object extractor, including transparent cylinder (1) and elastic yarn (5), it is characterised in that: described
Placket body (1) is transparent hollow tubulose, and the elastic yarn (5) is transparent material, and the transparent cylinder (1) is close to the elastic yarn
(5) one end sets hinged subtended angle control pipe (2), and the transparent cylinder (1) is rotatably connected to far from the one end of the elastic yarn (5)
Subtended angle adjusts swivel nut (32), and the inner wall of the transparent cylinder (1) slidably connects subtended angle control sleeve (3), the subtended angle control
The inner wall of sleeve (3) has been in axial sliding connection elastic adjustment sleeve (4), subtended angle adjustment swivel nut (32) and subtended angle control
By subtended angle adjustment screw thread (321) transmission connection between sleeve (3), the elastic yarn (5) manages (2) simultaneously through subtended angle control
It is fixed on the elastic one end end face of adjustment sleeve (4) far from subtended angle adjustment swivel nut (32), the subtended angle control pipe (2)
It is sequentially connected with the subtended angle control sleeve (3), subtended angle adjustment swivel nut (32) turns far from one end of the transparent cylinder (1)
It is dynamic to be connected with elastic adjusting nut (7), it is fixed with elastic adjustment screw (71) on the elastic adjusting nut (7), it is described elastic
Adjustment screw (71) is sequentially connected by elastic adjustment screw thread (73) in elastic adjustment sleeve (4) by cable hole (72)
Inner wall, elastic adjustment sleeve (4) are equipped with headlamp (6) close to the one end of the elastic yarn (5), and the headlamp (6) is logical
It crosses spiral cable (61) and luminous lamp switch (62) to be electrically connected, the luminous lamp switch (62) is located at the elastic adjusting nut
(7) end face outside.
2. a kind of easily sliding object extractor of ear-nose-throat department according to claim 1, it is characterised in that: the subtended angle control set
Cylinder (3) is fixed there are two subtended angle adjustment rack gear (31) close to the one end of the elastic yarn (5), and two subtended angles adjust rack gear
(31) connection is engaged by latch (311) with subtended angle adjustment gear (21), subtended angle adjustment rack gear (31) is transparent material
Matter.
3. a kind of easily sliding object extractor of ear-nose-throat department according to claim 1, it is characterised in that: the subtended angle control pipe
(2) length is five millimeters, the subtended angle control pipe (2) and the elastic yarn (5) basic shaft system clearance fit.
4. a kind of easily sliding object extractor of ear-nose-throat department according to claim 1, it is characterised in that: the subtended angle control pipe
(2) both ends of inner wall smooth, the subtended angle control pipe (2) all have smooth fillet.
5. a kind of easily sliding object extractor of ear-nose-throat department according to claim 1, it is characterised in that: the luminous lamp switch
It (62) is deflector rod switch, the inside of the elastic adjusting nut (7) is equipped with battery, and the spiral cable (61) runs through the pine
The tight internal cable hole (72) of adjustment screw (71) and the battery are electrically connected.
6. a kind of easily sliding object extractor of ear-nose-throat department according to claim 1, it is characterised in that: the subtended angle adjusts spiral shell
The outer wall for covering (32) has annular knurl line, has axial form friction pattern within outer wall one week of the elastic adjusting nut (7).
7. a kind of easily sliding object extractor of ear-nose-throat department according to claim 1, it is characterised in that: the subtended angle control set
It is in axial sliding connection between cylinder (3) and the elastic adjustment sleeve (4) by spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811253782.4A CN109431575A (en) | 2018-10-24 | 2018-10-24 | A kind of easily sliding object extractor of ear-nose-throat department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811253782.4A CN109431575A (en) | 2018-10-24 | 2018-10-24 | A kind of easily sliding object extractor of ear-nose-throat department |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109431575A true CN109431575A (en) | 2019-03-08 |
Family
ID=65548448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811253782.4A Pending CN109431575A (en) | 2018-10-24 | 2018-10-24 | A kind of easily sliding object extractor of ear-nose-throat department |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109431575A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251292A (en) * | 2019-06-20 | 2019-09-20 | 王风岭 | A kind of automatic adjustable puncture needle bone traction frame |
| CN112603504A (en) * | 2020-12-25 | 2021-04-06 | 秦彩丽 | Special removal device of cap type nasal cavity foreign matter |
| CN113951974A (en) * | 2021-10-15 | 2022-01-21 | 连云港市第一人民医院 | Multi-angle turning suction tube type curet for otolaryngological department |
-
2018
- 2018-10-24 CN CN201811253782.4A patent/CN109431575A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251292A (en) * | 2019-06-20 | 2019-09-20 | 王风岭 | A kind of automatic adjustable puncture needle bone traction frame |
| CN112603504A (en) * | 2020-12-25 | 2021-04-06 | 秦彩丽 | Special removal device of cap type nasal cavity foreign matter |
| CN112603504B (en) * | 2020-12-25 | 2022-06-03 | 秦彩丽 | Special removal device of cap type nasal cavity foreign matter |
| CN113951974A (en) * | 2021-10-15 | 2022-01-21 | 连云港市第一人民医院 | Multi-angle turning suction tube type curet for otolaryngological department |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109431575A (en) | A kind of easily sliding object extractor of ear-nose-throat department | |
| CN202761252U (en) | Dentistry mouth mirror | |
| CN201260842Y (en) | Rotating photon therapeutic equipment in vivo realized by using movable light-source | |
| CN111248844A (en) | Adjustable visual tube core laryngoscope | |
| CN106419819A (en) | Transurethral bendable manual cystoscope | |
| CN112244744A (en) | Traditional chinese medical science paediatrics inspection is with oral cavity ware that struts | |
| CN111387925A (en) | Ear canal supports expander for otolaryngology branch of academic or vocational study | |
| CN203988168U (en) | Operation on trachea dilator | |
| CN206377555U (en) | A kind of shadowless operating lamp with camera function | |
| CN212510677U (en) | Focal length adjustable lighting mechanism for dental operation chair | |
| CN209638955U (en) | A kind of beauty shadowless lamp | |
| CN208876472U (en) | A kind of animal anaesthetic laryngoscope | |
| CN209499675U (en) | A kind of soft or hard bluk recombination scope | |
| CN212940076U (en) | Nose prosthesis stripper | |
| CN219089428U (en) | Retractor for spinal surgery | |
| CN216079384U (en) | Oral cavity irradiation brightening device for department of stomatology | |
| CN220792576U (en) | A support of making a video recording for open surgery video recording | |
| CN213097764U (en) | Portable otolaryngology passes a sentence inspection headlight | |
| CN209915921U (en) | Otolaryngology passes a sentence inspection mirror | |
| CN204756634U (en) | LED operating astral lamp of adjustable focal length | |
| CN220512925U (en) | Orthodontic pliers for oral treatment | |
| CN202477639U (en) | Sight glass used in ophthalmology and otorhinolaryngology | |
| CN211933997U (en) | Handheld cystoscope with visual display | |
| CN209984292U (en) | Support laryngoscope | |
| CN208988825U (en) | A kind of adjustable anesthetic laryngopharyngoscope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190308 |
|
| WD01 | Invention patent application deemed withdrawn after publication |