CN109481008A - A kind of detachable structure tissue closure cutting electrode routing device - Google Patents
A kind of detachable structure tissue closure cutting electrode routing device Download PDFInfo
- Publication number
- CN109481008A CN109481008A CN201811539974.1A CN201811539974A CN109481008A CN 109481008 A CN109481008 A CN 109481008A CN 201811539974 A CN201811539974 A CN 201811539974A CN 109481008 A CN109481008 A CN 109481008A
- Authority
- CN
- China
- Prior art keywords
- electrode
- tissue closure
- electrode assembly
- push rod
- assembly
- 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
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- 239000002184 metal Substances 0.000 claims description 47
- 229910052751 metal Inorganic materials 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 31
- 239000000084 colloidal system Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002439 hemostatic effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00607—Coagulation and cutting with the same instrument
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1467—Probes or electrodes therefor using more than two electrodes on a single probe
Abstract
The present invention relates to a kind of Electrosurgical instrument, in particular a kind of tissue closure cutting electrode of electrosurgery detachable structure.A kind of detachable structure tissue closure cutting electrode routing device, including tissue closure cutting electrode main body, the tissue closure cutting electrode body front end is equipped with electrod driving device, push rod electrode assembly is equipped in the tissue closure cutting electrode main body, it is equipped with packet pearl electrode assembly on push rod electrode assembly, is equipped with electrode folding rear end behind the push rod electrode assembly and controls bar assembly.Usefulness of the present invention is: the configuration of the present invention is simple, easy to operate, using smoothly, it can be improved the success rate of operation, give the best curative effect of patient, entire circuit carries out on-off circuit in need of work, the tolerance for increasing work, improves the safety of work, and makes processing technology easy.
Description
Technical field:
The present invention relates to a kind of Electrosurgical instrument, the tissue of in particular a kind of electrosurgery detachable structure is closed
Close cutting electrode.
Background technique:
It is continued to develop along with surgery, more and more hemostatic devices are applied in operation, tissue closure cutting electrode
For one kind of such hemostatic device, traditional tissue closure cutting electrode is mostly non-removable structure, if reusing, cutting
Knife and electrode are not easy to clean and sterilize, more using internal residual dirt for several times, larger to wound risk, and cutter are easily to consume
Product can not be replaced, if not reusing, waste larger, increase operation patients surgery cost expenditure.
Summary of the invention:
The technical problem to be solved by the present invention is overcoming the shortcomings of existing product, the novel tissue closure of one kind is provided and is cut
Electrode routing device is cut, is convenient for tissue closure cutting electrode assembly and disassembly, achievees the effect that reuse.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions: a kind of detachable structure group
Knit closing of cutting electrode routing device, including tissue closure cutting electrode main body, the tissue closure cutting electrode body front end
Equipped with electrod driving device, push rod electrode assembly is equipped in the tissue closure cutting electrode main body, on push rod electrode assembly
Electrode folding rear end, which is equipped with, equipped with packet pearl electrode assembly, behind the push rod electrode assembly controls bar assembly.
As preferential, for the ease of the installation of electrod driving device, the electrod driving device is made of fixed link, described
Fixed link front end is equipped with electrode, and the electrode upper half is the first procedures electrode, and lower half is the second procedures electrode, the fixation
The end of bar, which is equipped with, connects female silk, and the connection mother silk in the fixed link is connected with male silk spiral is connect.
As preferential, for the ease of being connected with electrod driving device, it is public that the push rod electrode assembly head end is equipped with connection
Silk, push rod electrode assembly end are provided with metal buckle male connector, are wrapped in insulating bag colloid, institute on the outside of the metal buckle male connector
It is outer round a circle becket to state insulating bag colloid, side is equipped with the first conducting wire, one end of the first conducting wire on push rod electrode assembly
It is connected to metal buckle male connector, the other end is connected to the first procedures electrode, and side is equipped with the second conducting wire under push rod electrode assembly,
One end of second conducting wire is connected to becket, and the other end is connected to the second procedures electrode.The relatively fixed bar water of push rod electrode assembly
Square to there is certain movement travel, coordination electrode folding is horizontal to push push rod electrode assembly to the left, and electrode opens until the limit
Position pulls push rod electrode assembly horizontally to the right, electrode closure until extreme position, an electrode pass through conducting wire and metal card
Detain male connector connection, another electrode of electrode is connect by conducting wire with becket, wherein conducting wire, metal buckle male connector, conducting wire and
Becket is wrapped in insulating bag colloid, and each mutual installation by adhering of part forms one, is connected without extra connecting component
It connects.
As preferential, packet pearl electrode is equipped in the packet pearl electrode assembly, the packet pearl electrode is wrapped with fixing sleeve, institute
It states packet pearl electrode interior and is equipped with metal ball, metal spring is pressed in the metal ball, Bao Zhu is plugged with outside metal ball and metal spring
Plug is touched, the Bao Zhu touches plug tail portion welding lead, and the metal ball that Bao Zhu is touched in plug is under metal spring effect and bounces state,
The fixing sleeve is fixed by the first insulated screw and the second insulated screw, and the packet pearl electrode, the first insulated screw and second are absolutely
Edge screw screw thread is screwed into or is embedded in inside fixing sleeve, the packet pearl electrode, the first insulated screw and second insulated screw three's branch
Support packet pearl electrode assembly to center, the Bao Zhu touch plug in metal ball under spring force always with packet pearl electrode group
Part appearance face contact, push rod electrode assembly can slidably reciprocate in packet pearl electrode assembly inner horizontal direction.
As preferential, the tissue closure cutting electrode main body goes out to be provided with first electrode interface in packet pearl electrode, in group
It knits closing of cutting electrode body and is internally provided with second electrode interface, the push rod electrode assembly is installed on tissue closure cutting electricity
After the main body of pole, the first electrode interface and push rod electrode assembly appearance face contact, second electrode interface and metal buckle male connector
It connects.The connection type of the two is not limited to buckle, procedures electrode described in use process be by control push rod electrode assembly come
It returns sliding realization to switch on and off, push rod electrode assembly slides into left side, and packet pearl electrode and becket are connected at this time, while first
Procedures electrode and the second procedures electrode closure, circuit press packet pearl electrode (first electrode interface), becket, the first conducting wire, first
Procedures electrode, tissue, the second procedures electrode, the second conducting wire, metal buckle male connector sequentially form circuit, push rod electrode assembly
Right side is slid into, at this time packet pearl electrode and becket access failure, while the first procedures electrode and the second procedures electrode open.
As preferential, it is equipped with rear end control-rod in the electrode folding rear end control bar assembly, in the rear end control-rod
Equipped with through-hole, limited step is equipped with by the rear end control-rod.After the metal buckle male connector is inserted through through hole electrode folding
In end control bar assembly, until metal buckle male connector buckles into snap tab.Buckle is in bounces state under spring force.
Usefulness of the present invention is: it is the configuration of the present invention is simple, easy to operate, using smoothly, can be improved operation at
Power gives the best curative effect of patient, and entire circuit carries out on-off circuit in need of work, increases the tolerance of work,
The safety of work is improved, and makes processing technology easy.
Detailed description of the invention:
Fig. 1 is a kind of structural schematic diagram of novel tissue closure cutting electrode routing device；
Fig. 2 is packet pearl electrode and becket off-state schematic diagram；
Fig. 3 is packet pearl electrode and becket on-state schematic diagram；
Fig. 4 is packet pearl electrode cross-sectional view；
Fig. 5 is for tissue closure cutting electrode working state schematic representation；
In figure: 1, tissue closure cutting electrode main body；2, electrod driving device；3, push rod electrode assembly；4, packet pearl electrode
Component；5, electrode folding rear end controls bar assembly；11, first electrode interface；12, second electrode interface；21, fixed link；22, electric
Pole；221, the first procedures electrode；222, the second procedures electrode；23, female silk is connected；31, public silk is connected；32, metal buckle male connector；
33, insulating bag colloid；34, becket；35, the first conducting wire；36, the second conducting wire；41, packet pearl electrode；42, fixing sleeve；43, metal
Ball；44, metal spring；45, Bao Zhu touches plug；49, insulated screw；46, welding lead；47, the first insulated screw；48, second absolutely
Edge screw；51, rear end control-rod；52, through-hole；53, limited step.
Specific embodiment:
With reference to the accompanying drawing and specific embodiment the present invention will be described in detail:
As shown in Figure 1 to Figure 3, a kind of detachable structure tissue closure cutting electrode routing device, including tissue closure are cut
Electrode body 1 is cut, 1 front end of tissue closure cutting electrode main body is equipped with electrod driving device 2, the tissue closure cutting electricity
It is equipped with push rod electrode assembly 3 in pole main body 1, packet pearl electrode assembly 4, the push rod electrode group are equipped on push rod electrode assembly 3
It is equipped with electrode folding rear end behind part 3 and controls bar assembly 5.For the ease of the installation of electrod driving device 2, the electrode drive dress
It sets 2 to be made of fixed link 21,21 front end of fixed link is equipped with electrode 22, and 22 upper half of electrode is the first procedures electrode
221, lower half is the second procedures electrode 222, and the end of the fixed link 21, which is equipped with, connects female silk 23.For the ease of with electrode
Driving device 2 is connected, and 3 head end of push rod electrode assembly, which is equipped with, connects public silk 31, and 3 end of push rod electrode assembly is provided with gold
Belong to buckle male connector 32, be wrapped in insulating bag colloid 33 on the outside of the metal buckle male connector 32, the insulating bag colloid 33 it is outer round
One circle becket 34, side is equipped with the first conducting wire 35 on push rod electrode assembly (3), and one end of the first conducting wire 35 is connected to metal
Male connector 32 is buckled, the other end is connected to the first procedures electrode 221, and side is equipped with the second conducting wire 36 under push rod electrode assembly 3, the
One end of two conducting wires 36 is connected to becket 34, and the other end is connected to the second procedures electrode 222.Push rod electrode assembly 3 is relatively solid
21 horizontal direction of fixed pole has certain movement travel, and coordination electrode folding is horizontal to push push rod electrode assembly 3, electrode 22 to the left
It opens until extreme position, pulls push rod electrode assembly 3 horizontally to the right, the closure of electrode 22 is until extreme position, and the one of electrode 22
A electrode is connect by conducting wire with metal buckle male connector 32, another electrode of electrode 22 is connect by conducting wire with becket 34,
Wherein conducting wire, metal buckle male connector 32, conducting wire and becket 34 are wrapped in insulating bag colloid 33, and each part is mutually embedded
Installation forms one, connects without extra connecting component.Rear end is equipped in the electrode folding rear end control bar assembly 5 to control
Bar 51 is equipped with through-hole 52 in the rear end control-rod 51, is equipped with limited step 53 by the rear end control-rod 51.The metal card
Button male connector 32 is inserted through in 52 electrode folding rear end of through-hole control bar assembly 5, until metal buckle male connector 32 buckles into snap tab.
Buckle is in bounces state under spring force.
As shown in figure 4, being equipped with packet pearl electrode 41 in the packet pearl electrode assembly 4, the packet pearl electrode 41 is wrapped with solid
Surely cover 42, metal ball 43 be equipped with inside the packet pearl electrode 41, be pressed with metal spring 44 in the metal ball 43, metal ball 43 with
It is plugged with Bao Zhu outside metal spring 44 and touches plug 45, Bao Zhu touches plug 45 inside insulated screw 49, and the Bao Zhu touches the weldering of 45 tail portions of plug
Connect conducting wire 46, the metal ball 43 that Bao Zhu is touched in plug 45 under the effect of metal spring 44 in the state that bounces, the fixing sleeve 42 by
First insulated screw 47 and the second insulated screw 48 are fixed, the packet pearl electrode 41, the first insulated screw 47 and the second insulation spiral shell
It follows closely 48 screw threads to be screwed into or be embedded in inside fixing sleeve 42, the packet pearl electrode 41, the first insulated screw 47 and the second insulated screw 48
Three supports packet pearl electrode assembly 4 to center, and the Bao Zhu touches in plug 45 metal ball 43 under spring force always
With 4 appearance face contact of packet pearl electrode assembly.Push rod electrode group 3 can slidably reciprocate in 4 inner horizontal direction of packet pearl electrode assembly.
It is connect as shown in figure 5, the tissue closure cutting electrode main body 1 goes out to be provided with first electrode in packet pearl electrode assembly 4
Mouth 11, is internally provided with second electrode interface 12 in tissue closure cutting electrode main body 1, the push rod electrode assembly 3 is installed on
After tissue closure cutting electrode main body 1, the first electrode interface 11 and 3 appearance face contact of push rod electrode assembly, second electrode
Interface 12 and metal buckle male connector 32 are connected.The connection type of the two is not limited to buckle, and procedures electrode described in use process is
It is switched on and off by controlling the realization that slidably reciprocates of push rod electrode assembly 3, push rod electrode assembly 3 slides into left side, at this time Bao Zhu
Electrode 41 and becket 34 are connected, while the first procedures electrode 221 and the second procedures electrode 222 closure, circuit press packet pearl electrode
41 (first electrode interfaces), becket 34, the first conducting wire 35, the first procedures electrode 221, tissue, the second procedures electrode
222, the second conducting wire 36, metal buckle male connector 32 sequentially form circuit, and push rod electrode assembly 3 slides into right side, at this time Bao Zhu electricity
Pole 41 and 34 access failure of becket, while 221 first procedures electrodes and 222 second procedures electrodes open.
It is emphasized that: the above is only presently preferred embodiments of the present invention, not make in any form to the present invention
Limitation, any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention,
All of which are still within the scope of the technical scheme of the invention.
Claims (6)
1. a kind of detachable structure tissue closure cutting electrode routing device, it is characterised in that: including tissue closure cutting electrode
Main body (1), the tissue closure cutting electrode main body (1) front end are equipped with electrod driving device (2), the tissue closure cutting electricity
Push rod electrode assembly (3) are equipped in pole main body (1), packet pearl electrode assembly (4) is equipped on push rod electrode assembly (3), it is described to push away
Bar electrode assembly (3) is equipped with electrode folding rear end control bar assembly (5) below.
2. a kind of detachable structure tissue closure cutting electrode routing device according to claim 1, it is characterised in that: described
Electrod driving device (2) is made of fixed link (21), and fixed link (21) front end is equipped with electrode (22), on the electrode (22)
Half portion is the first procedures electrode (221), and lower half is the second procedures electrode (222), and the end of the fixed link (21) is equipped with
Connect female silk (23).
3. a kind of detachable structure tissue closure cutting electrode routing device according to claim 1 or claim 2, it is characterised in that:
Push rod electrode assembly (3) head end, which is equipped with, connects public silk (31), and push rod electrode assembly (3) end is provided with metal buckle male connector
(32), it is wrapped in insulating bag colloid (33) on the outside of the metal buckle male connector (32), the insulating bag colloid (33) is outside round one
It encloses becket (34), side is equipped with the first conducting wire (35) on push rod electrode assembly (3), and one end of the first conducting wire (35) is connected to
Metal buckle male connector (32), the other end are connected to the first procedures electrode (221), and side is equipped with the under push rod electrode assembly (3)
Two conducting wires (36), one end of the second conducting wire (36) are connected to becket (34), and the other end is connected to the second procedures electrode (222).
4. a kind of detachable structure tissue closure cutting electrode routing device according to claim 1, it is characterised in that: described
Packet pearl electrode (41) is equipped in packet pearl electrode assembly (4), the packet pearl electrode (41) is wrapped with fixing sleeve (42), the Bao Zhu
Metal ball (43) are equipped with inside electrode (41), are pressed with metal spring (44) on the metal ball (43), metal ball (43) and metal
It is plugged with Bao Zhu outside spring (44) to touch plug (45), Bao Zhu touches plug (45) embedded in insulated screw (49) inside, and the Bao Zhu touches plug (45)
Tail portion welding lead (46), the metal ball (43) that Bao Zhu is touched in plug (45) are in the case where metal spring (44) act on and bounce state,
The fixing sleeve (42) is fixed by the first insulated screw (47) and the second insulated screw (48), the packet pearl electrode (41), first
Insulated screw (47) and the second insulated screw (48) screw thread are screwed into or are embedded in inside fixing sleeve (42), the packet pearl electrode (41),
First insulated screw (47) and the second insulated screw (48) three support packet pearl electrode assembly (4) to center, the Bao Zhu
Touch plug (45) interior metal ball (43) under spring force always with packet pearl electrode assembly (4) appearance face contact.
5. according to claim 1 or a kind of 3 detachable structure tissue closure cutting electrode routing devices, it is characterised in that:
The tissue closure cutting electrode main body (1) goes out to be provided with first electrode interface (11) in packet pearl electrode assembly (4), closes in tissue
It closes cutting electrode main body (1) to be internally provided with second electrode interface (12), the push rod electrode assembly (3) is installed on tissue closure
After cutting electrode main body (1), the first electrode interface (11) and push rod electrode assembly (3) appearance face contact, second electrode are connect
Mouth (12) and metal buckle male connector (32) are connected.
6. according to claim 1 or a kind of 3 detachable structure tissue closure cutting electrode routing devices, it is characterised in that:
Rear end control-rod (51) are equipped in electrode folding rear end control bar assembly (5), are equipped in the rear end control-rod (51) logical
Hole (52), the rear end control-rod (51) is other to be equipped with limited step (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539974.1A CN109481008A (en) | 2018-12-17 | 2018-12-17 | A kind of detachable structure tissue closure cutting electrode routing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539974.1A CN109481008A (en) | 2018-12-17 | 2018-12-17 | A kind of detachable structure tissue closure cutting electrode routing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109481008A true CN109481008A (en) | 2019-03-19 |
Family
ID=65710456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811539974.1A Pending CN109481008A (en) | 2018-12-17 | 2018-12-17 | A kind of detachable structure tissue closure cutting electrode routing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109481008A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849021A (en) * | 2022-05-09 | 2022-08-05 | 精微致远医疗科技(武汉)有限公司 | Visual intubation device and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090138006A1 (en) * | 2007-11-28 | 2009-05-28 | Bales Thomas O | Cordless power-assisted medical cauterization and cutting device |
| CN102413787A (en) * | 2009-06-26 | 2012-04-11 | 奥林巴斯医疗株式会社 | Surgery instrument |
| CN102579129A (en) * | 2012-03-28 | 2012-07-18 | 刘枫 | High-frequency incision knife with accurate fixed-length knife bit for endoscope |
| CN102813551A (en) * | 2011-06-12 | 2012-12-12 | 封晏 | High-frequency minimally invasive surgery instrument for vascular melt closed cutting |
| CN108245236A (en) * | 2016-12-28 | 2018-07-06 | 南京森盛医疗设备有限公司 | Surgery device |
| CN209548079U (en) * | 2018-12-17 | 2019-10-29 | 锐志微创医疗科技（常州）有限公司 | Detachable structure tissue closure cutting electrode routing device |
-
2018
- 2018-12-17 CN CN201811539974.1A patent/CN109481008A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090138006A1 (en) * | 2007-11-28 | 2009-05-28 | Bales Thomas O | Cordless power-assisted medical cauterization and cutting device |
| CN102413787A (en) * | 2009-06-26 | 2012-04-11 | 奥林巴斯医疗株式会社 | Surgery instrument |
| CN102813551A (en) * | 2011-06-12 | 2012-12-12 | 封晏 | High-frequency minimally invasive surgery instrument for vascular melt closed cutting |
| CN102579129A (en) * | 2012-03-28 | 2012-07-18 | 刘枫 | High-frequency incision knife with accurate fixed-length knife bit for endoscope |
| CN108245236A (en) * | 2016-12-28 | 2018-07-06 | 南京森盛医疗设备有限公司 | Surgery device |
| CN209548079U (en) * | 2018-12-17 | 2019-10-29 | 锐志微创医疗科技（常州）有限公司 | Detachable structure tissue closure cutting electrode routing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849021A (en) * | 2022-05-09 | 2022-08-05 | 精微致远医疗科技(武汉)有限公司 | Visual intubation device and using method thereof |
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Application publication date: 20190319 |