CN103799954B - A kind of two dynamic adjustment laryngoscope - Google Patents
A kind of two dynamic adjustment laryngoscope Download PDFInfo
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- CN103799954B CN103799954B CN201410056135.XA CN201410056135A CN103799954B CN 103799954 B CN103799954 B CN 103799954B CN 201410056135 A CN201410056135 A CN 201410056135A CN 103799954 B CN103799954 B CN 103799954B
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Abstract
The present invention relates to a kind of two dynamic adjustment laryngoscope, it is mainly applicable in the operation on larynx of human body.Handle main body of the present invention comprises main body one, main body two, index glass sheet two, external screw rod, inner screw, bevel gear two, bevel gear three and back-up ring; Lens device comprises index glass sheet one and index glass sheet two, and handle main body is connected with index glass sheet one by fixed support, and index glass sheet two is connected with rotation adjusting part by index glass sheet two support; Translational adjustment assembly comprises the handwheel one and hand wheel handle one and power transmission shaft, holder, bevel gear one and forward and backward pad that interfix; Rotate adjusting part and comprise adjustment screw rod and the handwheel two interfixed and hand wheel handle two; Realize the translation of two index glass sheets by the engagement between two of three bevel gears, coordinate by index glass sheet two support and rotation adjusting part the angular adjustment realizing index glass sheet two.Structural design of the present invention is more reasonable, and use convenient, reliable and safety, the resultant effect of operation is good.
Description
Technical field
The present invention relates to a kind of laryngoscope, particularly a kind of two dynamic adjustment laryngoscope, it belongs to medical apparatus and instruments, is mainly applicable in the operation on larynx of human body.
Background technology
In prior art, at present for the medical apparatus and instruments mainly laryngoscope of human body operation on larynx.
Structure that Chinese utility model patent ZL201120422704 discloses " a kind of adjustable direct laryngoscope ", it mainly comprises handle, worm screw, adjusting screw(rod), worm gear seat, worm gear, flexible mirror sheath seat, fixed mirror sheath frame, fixed mirror sheath, flexible mirror sheath and connecting utricle, although it can carry out the angle adjustment of laryngoscope, but its structural design is still reasonable not, the horizontal adjustment of laryngoscope can not be carried out, narrow application range.
Chinese invention patent ZL2011102160618 discloses " a kind of Multifunctional adjustable self-retaining laryngoscope " structure, it mainly comprises handle, mirror sheath mobile device, mirror sheath micromatic setting, flexible mirror sheath and fixed mirror sheath, although this laryngoscope can carry out horizontal adjustment and angle adjustment in operation, operate simpler than laryngoscope before, but its structural design is still reasonable not, its major defect is: 1, during angle adjustment, handle also follows activity, and handle activity can affect location of operation and increase operating difficulty; 2, mirror sheath mobile device can not self-locking, needs to increase locking mechanism to lock mirror sheath mobile device, complex structure and inconvenient operation.
Summary of the invention
Technical problem to be solved by this invention to overcome in prior art existing above-mentioned deficiency, and provide a kind of structural design more rationally, horizontal adjustment can regulate laryngoscope by the two dynamic of angle adjustment.
The present invention's adopted technical scheme that solves the problem is: this pair of dynamic laryngoscope that regulates comprises handle main body, adjusting part, apparatus gatherer and lens device.Adjusting part comprises translational adjustment assembly and rotates adjusting part, it is characterized in that:
Described lens device comprises index glass sheet one and index glass sheet two, and handle main body is connected with index glass sheet one by fixed support, index glass sheet two by index glass sheet two support respectively with index glass sheet two with rotate adjusting part and be connected;
Described handle main body comprises main body one, main body two, index glass sheet two, external screw rod, inner screw, bevel gear two, bevel gear three and back-up ring, described main body one is threaded with main body two, and index glass sheet two to be fixed with external screw rod by pin and is connected with index glass sheet two support by bearing pin; Inner screw is socketed with external screw rod and is connected with described fixed support, and is threaded with bevel gear three; Bevel gear two is connected with external screw rod and by retainer ring spacing in main body two, shield ring sleeve is contained in main body two; Make structural design more rationally simple, installation and removal are convenient.Translational adjustment stablizes self-locking, can be positioned at any position; Can regulate in two directions, left and right simultaneously, expand steadily, balance, improve the processing safety in operation process.
Described translational adjustment assembly comprises the handwheel one and hand wheel handle one and power transmission shaft, holder, bevel gear one and forward and backward pad that interfix; Described handwheel one is fixed by pin with power transmission shaft, and power transmission shaft and bevel gear one are fixed by screw, and power is passed to bevel gear one from hand wheel handle one; Described front pad is between bevel gear one and holder, and rear pad is between handwheel one and holder, and described holder is fixed by screws in handle main body; Described handwheel one, holder, bevel gear one are arranged in the outer surface of power transmission shaft successively; Described bevel gear one engages with bevel gear two and bevel gear three respectively, and the direction of rotation of bevel gear two and bevel gear three is contrary, makes external screw rod and inner screw produce the motion of two different directions simultaneously; Make translational adjustment convenient, and translational adjustment stablizes self-locking, any position can be positioned at; Two directions, left and right regulate simultaneously, and expansion is steady, balance, improves the safety in operation process.
Described rotation adjusting part comprises adjustment screw rod and the handwheel two interfixed and hand wheel handle two, and handwheel two is connected with adjustment screw rod by pin; Described adjustment screw rod is provided with screw flight, spacing bulb and positive stop lug boss, described positive stop lug boss is between screw flight and spacing bulb, and spacing bulb is positioned at handle main body.Make angular adjustment convenient; Any position can be positioned at; Can prevent from index glass bar and handle main body from tightening to be integrally fixed, affect translational adjustment.
Fixed support of the present invention welds with index glass sheet one, and this fixed support is also fixed by two support bracket bolts and inner screw.Make installation and removal convenient, structure is simple, installs firmly.
Main body two of the present invention is a hollow structure, it has rotary handle elongated slot and bolt elongated slot, and the adjustment screw rod rotated in adjusting part is limited in rotary handle elongated slot, and support bracket bolt is limited in bolt elongated slot.May be used for the axial limiting adjusting screw rod, and prevent adjustment screw rod from coming off out from handle body.
External screw rod of the present invention is made up of leading portion, stage casing and back segment, and the diameter of back segment is less than the diameter in stage casing and is provided with external screw thread at back segment, it is connected with bevel gear two, has pin hole at leading portion, has elongated slot, keyway and spacing bulb groove in stage casing.May be used for screw rod in handle main body inner position, be beneficial to installation and removal.
The body of rod diameter of inner screw of the present invention is less than bar head diameter, and the body of rod has two circular holes, and they coordinate with described support bracket bolt, and bar head is provided with external screw thread, it are connected with bevel gear three.Make installation and removal convenient, structure is simple, installs firmly.
The inwall of main body two of the present invention is provided with an inner convex platform, and this inner convex platform is between bevel gear two and the stage casing of external screw rod.It had both moved right to external screw rod and had limited, and can coordinate again, be limited in easily in main body two by bevel gear two with back-up ring.
Index glass sheet two support of the present invention is connected with the screw flight rotating adjusting part, to realize more simply rotating adjusting part to the angular adjustment of index glass sheet two.
Holder of the present invention is connected with an installation base, can more easily translational adjustment assembly be connected with handle main body thus.
The present invention compared with prior art, have the following advantages and effect: structural design is more reasonable, realize the translation of two index glass sheets by the engagement between two of three bevel gears, coordinate by index glass sheet two support and rotation adjusting part the angular adjustment realizing index glass sheet two.In operation on larynx, use convenient, reliable and safety, the resultant effect of operation is better.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the overall structure schematic diagram in Fig. 1 after translational adjustment component operation.
Fig. 3 is the overall structure schematic diagram after rotating adjusting part work in Fig. 1.
Fig. 4 is the structural representation front view after removing index glass sheet one in Fig. 1.
Fig. 5 is the structural representation top view of Fig. 4.
Fig. 6 is the structural representation enlarged drawing of translational adjustment assembly in Fig. 5.
Fig. 7 is the structural representation enlarged drawing rotating adjusting part in Fig. 4.
Fig. 8 is the structural representation of main body one in the present invention.
Fig. 9 is the structural representation sectional view of A-A in Fig. 8.
Figure 10 is the structural representation of main body two in the present invention.
Figure 11 is the structural representation sectional view of B-B in Figure 10.
Figure 12 is the structural representation of external screw rod in the present invention.
Figure 13 is the structural representation sectional view of C-C in Figure 12.
Figure 14 is the structural representation front view of inner screw in the present invention.
Figure 15 is the structural representation top view of Figure 14.
Figure 16 is the structural representation sectional view of D-D in Fig. 5.
Figure 17 is the structural representation sectional view of E-E in Fig. 1.
Figure 18 is the structural representation after removing fixed support, main body one, main body two, inner screw and back-up ring in Figure 17.
Figure 19 is the structural representation after retaining fixed support, inner screw, bevel gear three and translational adjustment assembly in Figure 17.
Detailed description of the invention
See Fig. 1-Fig. 5, the present invention forms primarily of handle main body, adjusting part, apparatus gatherer 5 and lens device, handle main body comprises the main body 1 and main body 23 that are mutually threaded, adjusting part comprises translational adjustment assembly 2 and rotates adjusting part 4, and lens device comprises index glass sheet 1 and index glass sheet 27; Wherein: main body 23 is connected with index glass sheet 1 by fixed support 61, index glass sheet 27 is connected with rotation adjusting part 4 by index glass sheet two support 31, translational adjustment assembly 2 is fixed by screw and main body 23, the one end rotating adjusting part 3 is positioned at main body 23, and apparatus gatherer 5 is fixed with index glass sheet 27.The Main Function of apparatus gatherer 5 can penetrate endoscope, light guide bundles etc. and coordinate operation when being and using, it is same as the prior art.
See Fig. 6, Figure 17, translational adjustment assembly 2 of the present invention comprises the handwheel 1 and hand wheel handle 1 and power transmission shaft 24, holder 25, bevel gear 1 and front pad 26, rear pad 23 that interfix; Handwheel 1 and power transmission shaft 24 are fixed by pin, and power transmission shaft 24 and bevel gear 1 are fixed by screw, and power is passed to bevel gear 1 from hand wheel handle 1; Front pad 26 is between bevel gear 1 and holder 25, and rear pad 23 is between handwheel 1 and holder 25, and holder 25 is screwed in main body 23 by installation base 28; Handwheel 1, holder 25, bevel gear 1 are arranged in the outer surface of power transmission shaft 24 successively; Bevel gear 1 engages with bevel gear 2 35 and bevel gear 3 36 respectively.
Bevel gear 1 is used for transmitting torque and power, and change the direction of moment of torsion and power, transmission efficiency is high, transmits steadily and can self-locking; Front pad 26, in order to reduce bevel gear 1 and holder 25 contact friction, plays smooth effect; The whole translational adjustment assembly 2 of holder 25 is fixed in main body 23 by four screws, plays fixing and protective effect; The moment of torsion that handwheel 1 transmits, with transmitting torque and power, is passed to bevel gear 1 by dig-inning screw 29 by power transmission shaft 24, and rear pad 23, in order to reduce handwheel 1 and the contact friction of holder 25, plays smooth effect.
See Fig. 7, Figure 16, rotation adjusting part 4 of the present invention comprises adjustment screw rod 41 and the handwheel 2 42 interfixed and hand wheel handle 2 43, and handwheel 2 42 is connected with adjustment screw rod 41 by pin; Adjustment screw rod 41 is provided with screw flight 411, spacing bulb 413 and positive stop lug boss 412, and positive stop lug boss 412 is between screw flight 411 and spacing bulb 413, and spacing bulb 413 is positioned at main body 23.
Handwheel 2 42 is used for fixing hand wheel handle 2 43, transmitting torque and power; Hand wheel handle 2 43 is evenly arranged on handwheel 2 42, in order to increase moment of torsion by four hand wheel handles; Adjustment screw rod 41 is used for adjusting the relative position with index glass sheet two support 31 of its threaded engagement; Adjustment screw rod 41 is limited in main body 23 by positive stop lug boss 412 and spacing bulb 413; Handwheel 2 42 and adjustment screw rod 41 are fixed by pin 44, thus are delivered to by the moment of torsion of handwheel 2 42 on adjustment screw rod 41.
See Figure 16, handle main body of the present invention also comprises index glass sheet two 32, external screw rod 33, inner screw 34, bevel gear 2 35, bevel gear 3 36 and back-up ring 37, and index glass sheet two 32 is fixed by pin with external screw rod 33 and is connected with index glass sheet two support 31 by bearing pin 38; Inner screw 34 is socketed with external screw rod 33 and is connected with fixed support 61, and is threaded with bevel gear 3 36; Bevel gear 2 35 is connected with external screw rod 34 and is limited in main body 23 by back-up ring 37, and back-up ring 37 is sleeved in main body 23.
The effect of index glass sheet two support 31 is: integrally welded with index glass sheet 27, and index glass sheet 27 rotates along with index glass sheet two support 31, realizes the effect that index glass sheet 27 rotates; The effect that index glass sheet is two 32 is: be fixed on external screw rod 33 by pin 39, connected index glass sheet two support 31 by bearing pin 38.
Spacing bulb 413 one end of adjustment screw rod 41 is stuck in main body 23, makes it can not move up and down at vertical direction, but can rotate around its central shaft; Adjustment screw rod 41 and index glass sheet two support 31, by threaded engagement, rotate the gap that hand wheel handle 43 adjusts index glass sheet two support 31 and main body 23, thus index glass sheet two support 31 are rotated around bearing pin 38, realize the function that index glass sheet 27 rotates; The effect of index glass sheet two support 31 is fixing index glass sheets 27, rotates around bearing pin 38, realizes the effect that index glass sheet 27 rotates.
See Fig. 8-Figure 11, Figure 16, Figure 17, main body 1 of the present invention and main body 23 are threaded mutually, main body 23 is a hollow structure 304, it has rotary handle elongated slot 301 and bolt elongated slot 302, the adjustment screw rod 41 rotated in adjusting part 4 is limited in rotary handle elongated slot 301, and support bracket bolt 62 is limited in bolt elongated slot 302.The inwall of main body 23 is provided with an inner convex platform 303, this inner convex platform 303, between bevel gear 2 35 and the stage casing 332 of external screw rod 33, is shown in Figure 12.
Handle elongated slot 301 is mainly used to the spacing bulb 413 blocking adjustment screw rod 41, and adjustment screw rod is slided at the left and right directions of handle elongated slot 301; Bolt elongated slot 302 is elongated slots that two support bracket bolts 62 slide.
See Figure 12-Figure 13, Figure 16, external screw rod 33 of the present invention is made up of leading portion 331, stage casing 332 and back segment 333, the diameter of back segment 333 is less than the diameter in stage casing 332 and is provided with external screw thread 334 at back segment 333, it is connected with bevel gear 2 35, have pin hole 335 at leading portion 331, have elongated slot 336, keyway 337 and spacing bulb groove 338 in stage casing.
During use, external screw rod 33 can be fixed on index glass sheet two 32 by pin by pin hole 335; Elongated slot 336 is elongated slots that two support bracket bolts 62 slide; The effect of keyway 337 is the restrictions moved right to external screw rod 33, and spacing bulb groove 338 rotates the spacing bulb 413 of adjusting part 4 in order to place.
See Figure 14-Figure 15, Figure 17, the body of rod 341 diameter of inner screw 34 of the present invention is less than bar head 342 diameter, and the body of rod 341 has two circular holes 343, and they coordinate with support bracket bolt 62, bar head 342 is provided with external screw thread 344, it is connected with bevel gear 3 36.
See Figure 17, index glass sheet 1 is welded on fixed support 61, fixed support 61 is fixed by two screws and inner screw 34, inner screw 34 is threaded with bevel gear 3 36 again, index glass sheet 27 is welded on index glass sheet two support 31, then is threaded with bevel gear 2 35 by external screw rod 33, and bevel gear 2 35 is limited in handle main body by back-up ring 37, bevel gear 3 36 is limited in main body 23 by back-up ring 37 and main body 1, and translational adjustment assembly 2 is fixed by screws in main body 23.
Its effect of the left side of main body 23 inner convex platform 303 is the restriction moved right to external screw rod 33; Its effect of the right of inner convex platform 303 coordinates with back-up ring 37, is limited in by bevel gear 2 35 in main body 23; The left side of main body 1 coordinates with back-up ring 37, is limited in by bevel gear 3 36 in main body 23; Bevel gear 2 35 and bevel gear 3 36 are all driven pulleys, and bevel gear 1 is drivewheels.
See Figure 18, it is the structural representation realizing index glass sheet 27 translation.Bevel gear 1 in figure transmits power with bevel gear 2 35 by gears meshing, and bevel gear 2 35 and external screw rod 33 are threaded connection transmission power; Rotating hand wheel handle 1 makes power pass to bevel gear 2 35 from bevel gear 1, and bevel gear 2 35 makes external screw rod 33 left and right translation in handle main body by screw thread conduction, thus realizes the function of index glass sheet about 27 translation.
The right step 338 of external screw rod 33 contacts with the left side of inner convex platform 303, and effect is the restriction moved right to external screw rod 33.
See Figure 19, it is the structural representation realizing index glass sheet 1 translation.In like manner, bevel gear 1 in figure transmits power with bevel gear 3 36 by gears meshing, bevel gear 3 36 and inner screw 34 are threaded connection transmission power, rotating hand wheel handle 1 makes power pass to bevel gear 3 36 from bevel gear 1, bevel gear 3 36 makes inner screw 34 left and right translation in handle main body by screw thread conduction, thus realizes the function of index glass sheet about 1 translation.
See Figure 17-Figure 19, because the direction of rotation of bevel gear 2 35, bevel gear 3 36 is contrary, thus make external screw rod 33 and inner screw 34 produce the motion of both direction all the time, finally realize the object that index glass sheet 1, index glass sheet 27 close simultaneously or open simultaneously.
The present invention can make with rustless steel.
" two dynamic " implication of two dynamic adjustment laryngoscope is herein: index glass sheet 1 and index glass sheet 27 can move left and right adjustment.
All equivalences of doing according to structure, feature and the principle described in inventional idea of the present invention or simple change, be included in the protection domain of patent of the present invention.
Claims (8)
1. a two dynamic adjustment laryngoscope, comprise handle main body, adjusting part, apparatus gatherer and lens device, adjusting part comprises translational adjustment assembly and rotates adjusting part, it is characterized in that:
Described lens device comprises index glass sheet one and index glass sheet two, and handle main body is connected with index glass sheet one by fixed support, and index glass sheet two is connected with rotation adjusting part by index glass sheet two support;
Described handle main body comprises main body one, main body two, index glass sheet two support, index glass sheet two, external screw rod, inner screw, bevel gear two, bevel gear three and back-up ring, described main body one is threaded with main body two, index glass sheet two support and index glass sheet two be welded and fixed and and rotate adjusting part and be flexibly connected, index glass sheet two to be fixed with external screw rod by pin and is connected with index glass sheet two support by bearing pin; Inner screw is socketed with external screw rod and is connected with described fixed support, and is threaded with bevel gear three; Bevel gear two is connected with external screw rod and by retainer ring spacing in main body two, shield ring sleeve is contained in main body two;
Described translational adjustment assembly comprises the handwheel one and hand wheel handle one and power transmission shaft, holder, bevel gear one and forward and backward pad that interfix; Described handwheel one is fixed by pin with power transmission shaft, and power transmission shaft and bevel gear one are fixed by screw, and power is passed to bevel gear one from hand wheel handle one; Described front pad is between bevel gear one and holder, and rear pad is between handwheel one and holder, and described holder is fixed by screws in handle main body; Described handwheel one, holder, bevel gear one are arranged in the outer surface of power transmission shaft successively; Described bevel gear one engages with bevel gear two and bevel gear three respectively, and the direction of rotation of bevel gear two and bevel gear three is contrary, makes external screw rod and inner screw produce the motion of two different directions simultaneously;
Described rotation adjusting part comprises adjustment screw rod and the handwheel two interfixed and hand wheel handle two, and handwheel two is connected with adjustment screw rod by pin; Described adjustment screw rod is provided with screw flight, spacing bulb and positive stop lug boss, described positive stop lug boss is between screw flight and spacing bulb, and spacing bulb is positioned at handle main body.
2. two dynamic adjustment laryngoscope according to claim 1, it is characterized in that: described fixed support welds with index glass sheet one, this fixed support is also fixed by two support bracket bolts and inner screw.
3. two dynamic adjustment laryngoscope according to claim 2, it is characterized in that: described main body two is a hollow structure, it has rotary handle elongated slot and bolt elongated slot, the adjustment screw rod rotated in adjusting part is limited in rotary handle elongated slot, and support bracket bolt is limited in bolt elongated slot.
4. two dynamic adjustment laryngoscope according to claim 1 and 2, it is characterized in that: described external screw rod is made up of leading portion, stage casing and back segment, the diameter of back segment is less than the diameter in stage casing and is provided with external screw thread at back segment, it is connected with bevel gear two, have pin hole at leading portion, have elongated slot, keyway and spacing bulb groove in stage casing.
5. two dynamic adjustment laryngoscope according to claim 2, it is characterized in that: the body of rod diameter of described inner screw is less than bar head diameter, and the body of rod has two circular holes, and they coordinate with described support bracket bolt, bar head is provided with external screw thread, it is connected with bevel gear three.
6. two dynamic adjustment laryngoscope according to claim 3, is characterized in that: the inwall of described main body two is provided with an inner convex platform, and this inner convex platform is between bevel gear two and the stage casing of external screw rod.
7. two dynamic adjustment laryngoscope according to claim 1, is characterized in that: described holder is connected with an installation base.
8. two dynamic adjustment laryngoscope according to claim 1, is characterized in that: described index glass sheet two support is connected with the screw flight rotating adjusting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410056135.XA CN103799954B (en) | 2014-02-19 | 2014-02-19 | A kind of two dynamic adjustment laryngoscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410056135.XA CN103799954B (en) | 2014-02-19 | 2014-02-19 | A kind of two dynamic adjustment laryngoscope |
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| CN103799954A CN103799954A (en) | 2014-05-21 |
| CN103799954B true CN103799954B (en) | 2015-10-28 |
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| CN201410056135.XA Active CN103799954B (en) | 2014-02-19 | 2014-02-19 | A kind of two dynamic adjustment laryngoscope |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106782104A (en) * | 2016-10-28 | 2017-05-31 | 惠州市德赛智能科技有限公司 | It is a kind of can accurate adjustment installation site LED display |
| CN107340596A (en) * | 2017-08-22 | 2017-11-10 | 衍视电子科技（上海）有限公司 | A kind of micromatic setting of achievable eyeglass rotation |
| CN107485360B (en) * | 2017-09-22 | 2023-07-18 | 上海视介光电科技有限公司 | Endoscope operation part and endoscope |
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| GB540806A (en) * | 1940-05-30 | 1941-10-30 | Louis Van Lier | Improvements in and relating to surgical specula |
| DE3217476A1 (en) * | 1981-05-19 | 1982-12-30 | Storz, Karl, 7200 Tuttlingen | Laryngoscope |
| CN201691897U (en) * | 2010-06-13 | 2011-01-05 | 秦宗和 | Disposable laryngoscope |
| CN102273999A (en) * | 2011-07-30 | 2011-12-14 | 杭州市桐庐江南医光总厂 | Multifunctional adjustable self-retaining laryngoscope |
| CN202426496U (en) * | 2011-12-13 | 2012-09-12 | 杭州市桐庐医疗光学仪器总厂 | Multifunctional laryngoscope |
| CN203815424U (en) * | 2014-02-19 | 2014-09-10 | 浙江天松医疗器械股份有限公司 | Double-acting adjustment laryngoscope |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1392730B1 (en) * | 2009-01-12 | 2012-03-16 | Domenico De | PERFECTED LARYNGOSCOPE THAT INCLUDES A SERIES OF MAGNETIC ELEMENTS SUCH AS TO ALLOW A GUIDE DURING A ENDOTRACHEAL INTUBATION PROCEDURE OF A PATIENT |
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- 2014-02-19 CN CN201410056135.XA patent/CN103799954B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB540806A (en) * | 1940-05-30 | 1941-10-30 | Louis Van Lier | Improvements in and relating to surgical specula |
| DE3217476A1 (en) * | 1981-05-19 | 1982-12-30 | Storz, Karl, 7200 Tuttlingen | Laryngoscope |
| CN201691897U (en) * | 2010-06-13 | 2011-01-05 | 秦宗和 | Disposable laryngoscope |
| CN102273999A (en) * | 2011-07-30 | 2011-12-14 | 杭州市桐庐江南医光总厂 | Multifunctional adjustable self-retaining laryngoscope |
| CN202426496U (en) * | 2011-12-13 | 2012-09-12 | 杭州市桐庐医疗光学仪器总厂 | Multifunctional laryngoscope |
| CN203815424U (en) * | 2014-02-19 | 2014-09-10 | 浙江天松医疗器械股份有限公司 | Double-acting adjustment laryngoscope |
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