CN110522402A - A kind of novel anesthetic laryngoscope - Google Patents
A kind of novel anesthetic laryngoscope Download PDFInfo
- Publication number
- CN110522402A CN110522402A CN201910855012.5A CN201910855012A CN110522402A CN 110522402 A CN110522402 A CN 110522402A CN 201910855012 A CN201910855012 A CN 201910855012A CN 110522402 A CN110522402 A CN 110522402A
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- Prior art keywords
- handle
- ring
- telescopic rod
- lower handle
- clamping groove
- Prior art date
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- 230000003444 anaesthetic effect Effects 0.000 title claims abstract description 24
- 230000000903 blocking effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 abstract description 4
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00131—Accessories for endoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/267—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the respiratory tract, e.g. laryngoscopes, bronchoscopes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Otolaryngology (AREA)
- Physiology (AREA)
- Pulmonology (AREA)
- Endoscopes (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
The present invention relates to medical apparatus and instruments technical fields, and disclose a kind of novel anesthetic laryngoscope, including display screen, handle and guide rod, display screen is installed on handle, at its lower end, guide rod is installed on handle upper end, the handle difference upper handle and lower handle, telescopic rod is provided between upper handle and lower handle, telescopic rod one end is fixedly connected with upper handle lower surface midpoint, the telescopic rod other end is flexibly connected through lower handle upper surface with lower handle, ring diameter midpoint of the lower handle upper surface in addition to telescopic rod, which is provided with, blocks ring, the novel anesthetic laryngoscope, handle is transformed, it freely up and down stretches so that handle is able to carry out, can not also influence user normally carries out crawl use simultaneously, when needing to check different sufferers, it does not need to replace handle, it only carries out rotation and stretches and decreased food can be adjusted The excellent diagnostics opportunity of patient will not be delayed to suitable length so as to be rapidly performed by treatment to patient.
Description
Technical field
The present invention relates to medical apparatus and instruments technical field, specially a kind of novel anesthetic laryngoscope.
Background technique
In the prior art, the handle of anaesthetic laryngoscope is single fixed dimension, is checked carrying out shouting chamber to different patients
When, for example, adult and minor need replacing handle when checking, the working efficiency of medical staff can be reduced in this way, it can also
It can be delayed the treatment of patient.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of novel anesthetic laryngoscope, have can according to patient it is different from
It the advantages that by adjustment decreased food, solves the problems, such as above-mentioned.
(2) technical solution
To realize purpose described above, the invention provides the following technical scheme: a kind of novel anesthetic laryngoscope, including display screen, hand
Handle and guide rod, display screen are installed on handle, at its lower end, and guide rod is installed on handle upper end, and handle is divided into upper handle and lower handle, upper hand
Handle is identical with the size of lower handle, and telescopic rod, telescopic rod one end and upper handle lower surface are provided between upper handle and lower handle
Midpoint is fixedly connected, and the telescopic rod other end is flexibly connected through lower handle upper surface with lower handle, telescopic rod and lower handle
One end diameter being connected is the half of assistant's shank diameter, and ring diameter midpoint of the lower handle upper surface in addition to telescopic rod is provided with screening
Baffle ring blocks in the hole that ring set is connected on lower handle, and telescopic rod, which is located at the part left and right ends midpoint in lower handle, to be fixed
Spring is installed, the spring other end is fixedly connected with side inner wall of the ring close to telescopic rod is blocked, and telescopic rod is located in lower handle
Part front end offer the clamping groove of right-angle triangle, limited block is set in clamping groove, and limited block is and clamping flute profile
Identical block of plate of shape blocks position corresponding with clamping groove on ring and is provided with clamping apparatus, and clamping apparatus, which is set to, blocks ring
Close to the midpoint of clamping groove one side wall, lower handle upper surface is located at telescopic rod and blocks card there are two the part settings between ring
Button, two buckle the left and right sides for being respectively arranged at telescopic rod, and buckle is fixedly connected with lower handle upper surface, upper handle bottom surface
Position corresponding with buckle offers slip draw-in groove.
Clamping apparatus includes connecting plate, connecting shaft, folded sheet and kinematic axis, and connecting plate is fixedly connected with ring is blocked, and even
Fishplate bar and block between ring tilt connect, connecting plate tilt angle is identical as the angle of bevel of clamping groove, and connecting plate length with
Clamping groove the length of the hypotenuse is identical, and connecting plate is fixedly installed with connecting shaft far from the one end for blocking ring, and connecting shaft is to connect with hinge
The identical jack-post of column, i.e. connecting shaft are multisection type activity axis body, are also fixedly connected with folded sheet, folded sheet, connection in connecting shaft
Connection type between plate and connecting shaft is identical as the connection type of hinge, and the folded sheet other end is fixedly installed with kinematic axis, hides
Position corresponding with clamping apparatus offers slot on baffle ring, and the size of the slot is equal with the openings of sizes of clamping groove, movement
Axis is connected in the slot blocked on ring.
Preferably, the lower handle is hollow cylinder.
Preferably, described to block ring length and lower handle equal length, and lower handle upper surface offers and to block ring big
Small identical hole.
Preferably, the spring is the position for blocking one third above ring with one end horizontal position that ring is connect is blocked.
Preferably, the quantity of the limited block is five, and is placed equidistant in five limited blocks and clamping groove.
Preferably, the buckle is inverted L shape bar.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of novel anesthetic laryngoscope, have it is following the utility model has the advantages that
1, the novel anesthetic laryngoscope, is transformed handle, freely up and down stretches so that handle is able to carry out, while also can not
It influences user and normally carries out crawl use, when needing to check different sufferers, do not need to replace handle,
Decreased food can be adjusted to suitable length by only carrying out rotation stretching, be controlled so as to be rapidly performed by patient
It treats, the excellent diagnostics opportunity of patient will not be delayed.
2, the novel anesthetic laryngoscope is made to block ring using spring and be popped up, block ring because size design, can
The variation for reducing handle entirety size to greatest extent avoids because grabbing the use of some effects user of different sizes,
And spring and being equipped with for ring is blocked, it allows handle when being stretched, blocks ring and can be automatic and be rapidly performed by synchronous fortune
It is dynamic, so that not needing artificially to spend the time that adjustment is gone to block the position of ring, the adjustment time of device is saved, while also optimizing
The usage experience of user.
3, the novel anesthetic laryngoscope, because of the design of device locations of structures itself, allowing entire handle, surface is seen after the stretch
Not having excessive structure up influences crawl, and a large amount of structures are all set in lower handle, at the same also have a small amount of structure setting in
It telescopic rod and blocks between ring, and these structures can be blocked by blocking ring then, increase the beauty of handle entirety, also be kept away
Having exempted from structure peripheral hardware leads to the operating for triggering structure unintentionally when in use, leads to unexpected unexpected generation, increases
The safety of device.
4, the novel anesthetic laryngoscope has opened up clamping groove on telescopic rod, while multiple limits are provided in clamping groove
Block is carried out using needing according to adjusting different length, clamping groove and limit the case where patient when adjusting decreased food
Block can then allow user freely to be connected and fixed a position according to the difference of patient, to avoid handle excessive
Elongation, cause using when it is more inconvenient, to influence the treatment of patient, increase the practicability of device.
5, the novel anesthetic laryngoscope is clamped using clamping apparatus with clamping groove and limited block, the knot of clamping apparatus
Structure design can allow it that can more flexibly can be deformed automatically when in use, after the completion of use when in use
It can be sprung back automatically, and because of the setting of clamping groove and the shape of clamping apparatus, whole device be allowed to be merely able to one
Direction is rotated, and without can be carried out Double-directional rotary, avoids increasing because device is caused to be extended in use using fault
The safety of device is added.
Detailed description of the invention
Fig. 1 is agent structure schematic diagram of the present invention；
Fig. 2 is handle arrangement schematic diagram of the present invention；
Fig. 3 is structure enlargement diagram at A in Fig. 2 of the present invention；
Fig. 4 is lower handle structure sectional view of the present invention；
Fig. 5 is lower handle structural perspective of the present invention；
Fig. 6 is clamping apparatus structural schematic diagram of the present invention.
In figure: ring, 7 cards are blocked in 1 display screen, 2 handles, 21 upper handles, 22 lower handles, 3 guide rods, 4 telescopic rods, 5 springs, 6
Access slot, 8 limited blocks, 9 clamping apparatus, 91 connecting plates, 92 connecting shafts, 93 folded sheets, 94 kinematic axis, 10 buckles.
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.
Please refer to Fig. 1-6, a kind of novel anesthetic laryngoscope, including display screen 1, handle 2 and guide rod 3, display screen 1 and guide rod 3
It is well-known technique in existing anaesthetic laryngoscope related fields, does not repeat herein, display screen 1 is installed on 2 lower end of handle, guide rod
3 are installed on 2 upper end of handle, and handle 2 divides for upper handle 21 and lower handle 22, and upper handle 21 is identical with the size of lower handle 22, on
Telescopic rod 4 is provided between handle 21 and lower handle 22, telescopic rod 4 is existing well-known technique, is not repeated herein, telescopic rod
4 one end are fixedly connected with 21 lower surface midpoint of upper handle, and 4 other end of telescopic rod runs through 22 upper surface of lower handle and lower handle
22 are flexibly connected, and one end diameter that telescopic rod 4 is connected with lower handle 22 is the half of 22 diameter of lower handle, and lower handle 22 is sky
Heart cylindrical body, ring diameter midpoint of 22 upper surface of lower handle in addition to telescopic rod 4, which is provided with, blocks ring 6, blocks 6 length of ring and sets about
22 equal length of handle, and 22 upper surface of lower handle offers hole identical with 6 size of ring is blocked, and blocks ring 6 and is socketed on assistant
In hole on handle 22, telescopic rod 4 is located at the part left and right ends midpoint in lower handle 22 and is fixedly installed with spring 5, spring 5
The other end is fixedly connected with side inner wall of the ring 6 close to telescopic rod 4 is blocked, and spring 5 and one end horizontal position for blocking ring 6 and connecting
It is set to the position for blocking 6 top one third of ring, the part front end that telescopic rod 4 is located in lower handle 22 offers right angled triangle
The clamping groove 7 of shape, clamping groove 7 is interior to be arranged limited block 8, and limited block 8 is identical with 7 shape of clamping groove block of plate, limited block 8
Quantity is five, and is placed equidistant in five limited blocks 8 and clamping groove 7, blocks position corresponding with clamping groove 7 on ring 6 and sets
It is equipped with clamping apparatus 9, clamping apparatus 9, which is set to, blocks ring 6 close to the midpoint of 7 one side wall of clamping groove, 22 upper surface of lower handle
Positioned at telescopic rod 4 and block between ring 6 part setting there are two buckle 10, buckle 10 be inverted L shape bar, two buckle 10
It is respectively arranged at the left and right sides of telescopic rod 4, and buckles 10 and is fixedly connected with 22 upper surface of lower handle, 21 bottom surface of upper handle and card
It detains 10 corresponding positions and offers slip draw-in groove, the dress of relationship and existing sliding clamping between buckle 10 and slip draw-in groove
It sets identical, does not repeat herein.
Clamping apparatus 9 includes connecting plate 91, connecting shaft 92, folded sheet 93 and kinematic axis 94, and connecting plate 91 is consolidated with ring 6 is blocked
Fixed connection, and connecting plate 91 and block to tilt between ring 6 and connect, the angle of bevel phase of 91 tilt angle of connecting plate and clamping groove 7
Together, and 91 length of connecting plate is identical as 7 the length of the hypotenuse of clamping groove, and connecting plate 91 is fixedly installed with company far from the one end for blocking ring 6
Spindle 92, connecting shaft 92 are jack-post identical with hinge connection post, i.e. connecting shaft 92 is multisection type activity axis body, in connecting shaft 92
It is also fixedly connected with folded sheet 93, the connection side of connection type and hinge between folded sheet 93, connecting plate 91 and connecting shaft 92
Formula is identical, and 93 other end of folded sheet is fixedly installed with kinematic axis 94, blocks position corresponding with clamping apparatus 9 on ring 6 and opens up
There is slot, and the size of the slot is equal with the openings of sizes of clamping groove 7, kinematic axis 94 is connected in the slot blocked on ring 6.
When being treated using the present apparatus, need to adjust the length of handle 2 according to the age of sufferer object, at this time then
Lower handle 22 can be rotated, buckle 10 can be skidded off first from slip draw-in groove, and the spring 5 in lower handle 22 can generate a setting
Become, while the connecting shaft 92 on clamping apparatus 9 can be carried out squeezing to allow 94 Foldable plate 93 of kinematic axis to even by clamping groove 7
The direction of fishplate bar 91 is moved, i.e., clamping apparatus 9 will receive the extruding of telescopic rod 4 and deform, this makes it possible to allow doctor from
By adjustment handle 2 length, telescopic rod 4 extend while because the sheet of spring 5 blocks ring 6 as squeezed state
As the elongation of handle 2 and popped up from lower handle 22, and block ring 6 pop up after, the spring 5 in lower handle 22 is still
Deformed state can be kept, while unclamping hand in doctor to spring back automatically, thus snap fit between clamping groove 7 and limited block 8,
This makes it possible to adjust handle to the length of anticipation, to preferably be treated to patient, upon completion of the treatment, also only need
Again lower handle 22 to be rotated, then will generates the situation identical with above-mentioned steps inside lower handle 22, at this time
Can directly buckle 10 be clamped into the slip draw-in groove of 21 bottom of upper handle as long as being squeezed lower handle 22 upwards, from
And entire handle 2 is foreshortened into the original length, facilitate the recycling of device.
When in use,
The first step rotates lower handle 22, and buckle 10 can be skidded off first from slip draw-in groove, and the spring 5 in lower handle 22 can produce
Raw certain deformation, while the connecting shaft 92 on clamping apparatus 9 can be carried out squeezing to allow by clamping groove 7 94 Foldable of kinematic axis
Plate 93 is moved to the direction of connecting plate 91, i.e., clamping apparatus 9 will receive the extruding of telescopic rod 4 and deform.
Second step, while telescopic rod 4 extends, because the sheet of spring 5 blocks ring 6 and also can as squeezed state
Popped up from lower handle 22 because of the elongation of handle 2, and block ring 6 pop up after, the spring 5 in lower handle 22 can still be protected
Hold deformed state.
Third step, unclamping hand in doctor can spring back automatically, to snap fit between clamping groove 7 and limited block 8, in this way
Handle 2 can be adjusted to the length of anticipation, to preferably be treated to patient, upon completion of the treatment, also only be needed
Again lower handle 22 is rotated, then will generates the situation identical with above-mentioned steps inside lower handle 22, at this time only
Lower handle 22 is squeezed upwards to be directly clamped buckle 10 into the slip draw-in groove of 21 bottom of upper handle, thus
Entire handle 2 is foreshortened into the original length, facilitates the recycling of device.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of novel anesthetic laryngoscope, including display screen (1), handle (2) and guide rod (3), display screen (1) are installed on handle (2)
Lower end, guide rod (3) are installed on handle (2) upper end, it is characterised in that: the handle (2) is divided into upper handle (21) and lower handle
(22), it is provided between upper handle (21) and lower handle (22) telescopic rod (4), telescopic rod (4) one end and upper handle (21) following table
Face midpoint is fixedly connected, and telescopic rod (4) other end is flexibly connected through lower handle (22) upper surface with lower handle (22), under
Ring diameter midpoint of handle (22) upper surface in addition to telescopic rod (4), which is provided with, blocks ring (6), blocks ring (6) and is socketed on lower handle
(22) on, telescopic rod (4) is located at the part left and right ends midpoint in lower handle (22) and is fixedly installed with spring (5), telescopic rod
(4) it is located at the clamping groove (7) that the part front end in lower handle (22) offers right-angle triangle, setting in clamping groove (7)
Limited block (8) blocks position corresponding with clamping groove (7) on ring (6) and is provided with clamping apparatus (9), clamping apparatus (9) setting
In blocking the midpoint of ring (6) close to clamping groove (7) one side wall, lower handle (22) upper surface is located at telescopic rod (4) and blocks ring
(6) for the part setting between there are two (10) are buckled, upper handle (21) bottom surface position corresponding with buckle (10) offers cunning
Dynamic card slot；
The clamping apparatus (9) includes connecting plate (91), connecting shaft (92), folded sheet (93) and kinematic axis (94), connecting plate
(91) with block ring (6) and be fixedly connected, and connecting plate (91) and block to tilt between ring (6) and connect, connecting plate (91) is far from hiding
One end of baffle ring (6) is fixedly installed with connecting shaft (92), and folded sheet (93), folded sheet are also fixedly connected in connecting shaft (92)
(93) other end is fixedly installed with kinematic axis (94).
2. a kind of novel anesthetic laryngoscope according to claim 1, it is characterised in that: the telescopic rod (4) and lower handle
(22) one end diameter being connected is the half of lower handle (22) diameter, and lower handle (22) is hollow cylinder, and it is long to block ring (6)
Degree and lower handle (22) equal length, and lower handle (22) upper surface offers hole identical with ring (6) size is blocked.
3. a kind of novel anesthetic laryngoscope according to claim 1, it is characterised in that: spring (5) other end with block
Side inner wall of the ring (6) close to telescopic rod (4) is fixedly connected, and spring (5) is with one end horizontal position that ring (6) is connect is blocked
Block the position of one third above ring (6).
4. a kind of novel anesthetic laryngoscope according to claim 1, it is characterised in that: the limited block (8) is and clamping groove
(7) identical block of plate of shape, the quantity of limited block (8) are five, and are placed equidistant in five limited blocks (8) and clamping groove (7).
5. a kind of novel anesthetic laryngoscope according to claim 1, it is characterised in that: the buckle (10) is inverted L shape
Bar, two buckles (10) are respectively arranged at the left and right sides of telescopic rod (4), and buckle (10) and fix with lower handle (22) upper surface
Connection.
6. a kind of novel anesthetic laryngoscope according to claim 1, it is characterised in that: connecting plate (91) tilt angle with
The angle of bevel of clamping groove (7) is identical, and connecting plate (91) length is identical as clamping groove (7) the length of the hypotenuse, and connecting shaft (92) is
Jack-post identical with hinge connection post, i.e. connecting shaft (92) are multisection type activity axis body.
7. a kind of novel anesthetic laryngoscope according to claim 1, it is characterised in that: the folded sheet (93), connecting plate
(91) connection type between connecting shaft (92) is identical as the connection type of hinge.
8. a kind of novel anesthetic laryngoscope according to claim 1, it is characterised in that: described block fills on ring (6) with clamping
It sets (9) corresponding position and offers slot, and the size of the slot is equal with the openings of sizes of clamping groove (7), kinematic axis (94) card
It is connected in the slot blocked on ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910855012.5A CN110522402B (en) | 2019-09-10 | 2019-09-10 | Novel anesthetic laryngoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910855012.5A CN110522402B (en) | 2019-09-10 | 2019-09-10 | Novel anesthetic laryngoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110522402A true CN110522402A (en) | 2019-12-03 |
| CN110522402B CN110522402B (en) | 2021-11-05 |
Family
ID=68668072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910855012.5A Expired - Fee Related CN110522402B (en) | 2019-09-10 | 2019-09-10 | Novel anesthetic laryngoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110522402B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2746626A1 (en) * | 1996-03-26 | 1997-10-03 | Desgardin Jean Michel | Laryngoscope incorporating local anaesthetic spray |
| CN204931626U (en) * | 2015-09-19 | 2016-01-06 | 赵伟新 | A kind of clinical anesthesia laryngopharyngeal mirror |
| CN207341857U (en) * | 2017-03-26 | 2018-05-11 | 王红霞 | A kind of ophthalmology scalpel |
| CN209252808U (en) * | 2018-05-30 | 2019-08-16 | 张国元 | A kind of disposable laryngoscope blade of department of anesthesia |
-
2019
- 2019-09-10 CN CN201910855012.5A patent/CN110522402B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2746626A1 (en) * | 1996-03-26 | 1997-10-03 | Desgardin Jean Michel | Laryngoscope incorporating local anaesthetic spray |
| CN204931626U (en) * | 2015-09-19 | 2016-01-06 | 赵伟新 | A kind of clinical anesthesia laryngopharyngeal mirror |
| CN207341857U (en) * | 2017-03-26 | 2018-05-11 | 王红霞 | A kind of ophthalmology scalpel |
| CN209252808U (en) * | 2018-05-30 | 2019-08-16 | 张国元 | A kind of disposable laryngoscope blade of department of anesthesia |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110522402B (en) | 2021-11-05 |
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Granted publication date: 20211105 |