CN108378882A - A kind of tracheotomy extension fixture - Google Patents
A kind of tracheotomy extension fixture Download PDFInfo
- Publication number
- CN108378882A CN108378882A CN201810311634.7A CN201810311634A CN108378882A CN 108378882 A CN108378882 A CN 108378882A CN 201810311634 A CN201810311634 A CN 201810311634A CN 108378882 A CN108378882 A CN 108378882A
- Authority
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- China
- Prior art keywords
- bar
- swivel becket
- shell
- extension fixture
- fixed link
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
-
- 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
- A61B17/24—Surgical instruments, devices or methods, e.g. tourniquets for use in the oral cavity, larynx, bronchial passages or nose; Tongue scrapers
- A61B2017/242—Surgical instruments, devices or methods, e.g. tourniquets for use in the oral cavity, larynx, bronchial passages or nose; Tongue scrapers for bronchial passages
Abstract
The present invention relates to medical instruments fields, and in particular to a kind of tracheotomy extension fixture, including：Shell, expanding mechanism, screw lid, expanded film.Lower end expansion part is in contraction state when the device is initial, the expanded film of expansion part cooperation at this time is in minimum outer diameter state, in the channel that the lower end expanded film partial insertion of device is expanded, then screw lid is rotated with hand, helical tooth synchronizes rotation thereon for screw lid drive, because being engaged with circumferentially distributed gear on helical tooth, when helical tooth rotates, rotating bar synchronizes downwards rotation, sliding sleeve in four-bar mechanism is moved, expansion part drives expanded film to synchronize and is expanded at this time, so that circumferentially distributed expansion part is in maximum outside diameter state, channel is expanded part and expanded film support to maximum at this time, to carry out next step operation, the device can quantify and adjust stroke, simple and convenient practicality.
Description
Technical field
The present invention relates to medical instruments fields, in particular to a kind of tracheotomy extension fixture.
Background technology
Tracheotomy is a kind of emergent operation, is initially served only for expiratory dyspnea caused by releasing laryngemphraxis plug.With right
The pathologic, physiologic function of respiratory tract is understood in depth, and tracheotomy has become the important auxiliary treatment means of certain diseases.Such as
Long period coma patient caused by a variety of causes, lower respiratory tract secretion accumulate, and influence pulmonary gas exchange, after tracheotomy,
Lower respiratory tract secretion can be sucked out from tracheotomy mouth, and can the interior drug and antibiosis for instilling the sticky secretion of desaturation of transtracheal
Element, to prevent or treat pulmonary complications.After tracheotomy, air directly from notch enter, reduce respiratory tract resistance and
Dead space can not only increase effective gas exchange, but also can reduce oxygen demand, improvement is exhaled in identical breathing tidal volume
Inhale function.In addition, when respiratory arrest occurs for paralysis of respiratory muscle or other reasons, tracheotomy is implemented, positive pressure artificial respiration etc. is done.
Therefore, clinical departments doctor should be familiar with the adaptation symptom of tracheotomy, correct to handle to apply in time, save patient
Life.
Currently used method has general tracheotomy, emergency tracheotomy, intercricothyrotomy, permanent tracheae
Otomy, percutaneous tracheotomy, Quick trachea cut art, it is exactly to need by tracheotomy that such operation, which has one of identical point,
Then it needs interannular fascia being expanded to and is enough to be put into tracheostomy cannula, the device of currently used expanding channel is expansion
Pincers, but can make channel discontinuity using stretching pliers, it is be easy to cause situations such as wound is torn, and be not easily controlled dynamics,
It is careless slightly the excessive of channel support to be caused to damage, while needing to control stretching pliers during surgery for a long time to keep channel
Expansion.
Invention content
To solve the above problems, the purpose of the present invention is to provide a kind of tracheotomy expansions that can quantify adjusting stroke
Open device.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of tracheotomy extension fixture provided by the invention, including：Shell, expanding mechanism, screw lid, expanded film；Shell
On offer through-hole, the quantity of expanding mechanism is multiple, and multiple expanding mechanisms are circumferentially provided on shell and stretch into through-hole, is expanded
Opening mechanism includes：It is oriented to fixed link, rotating bar, connecting rod, sliding sleeve, sliding bar, expansion part；Fixed link is oriented to be arranged in shell
On, it is provided with gear in rotating bar, is oriented to fixed link, rotating bar, sliding sleeve, connecting rod and hingedly forms four-bar mechanism successively, be oriented to
Guide part is provided in fixed link, sliding bar is movably arranged on guide part and is connect with expansion part, and expansion part movable set exists
In sliding sleeve, helical tooth is provided on screw lid, expanded film is arranged on multiple expansion parts；Screw lid is movably arranged on shell
Upper and helical tooth is engaged with multiple gears, rotates that screw lid will drive multiple gears to rotate and so that four-bar mechanism drives successively more
A expansion part, expanded film synchronize expansion or contraction in through-hole.
Further, device further includes the first swivel becket, the second swivel becket, and the first swivel becket, the setting of the second swivel becket exist
On shell, the hinged place being oriented between fixed link, rotating bar wears the first swivel becket, is oriented to being hinged between fixed link, connecting rod
Place wears the second swivel becket.
Further, expanding mechanism further includes that bar is auxiliarily fixed, and is oriented to fixed link, bar is auxiliarily fixed is fixedly connected on first
Between swivel becket, the second swivel becket, rotating bar, connecting rod, which are hinged on, to be oriented to fixed link, is auxiliarily fixed between bar.
Further, the first swivel becket, be provided with more than one fixed block on the second swivel becket, fixed block is connected to shell
On body.
Further, long straight slot is offered on sliding bar, guide part includes T font guide pads, and guide pad setting is long logical
In slot.
Further, gear is partial gear structure, and gear is arranged in the end of rotating bar, is oriented to fixed link and gear phase
It is hinged.
Further, multiple expanding mechanisms are circumferentially uniformly arranged, and expansion part is in be vertically arranged.
Further, expansion part includes that expansion is managed, and expansion pipe includes the bending section for bending towards through-bore axis.
Further, shell is circular ring shape, and cavity resigning is offered on shell, and expanding mechanism is arranged in cavity resigning,
It is further opened on shell and carries out the relief hole that flexible elongated slot steps down and stretches convenient for sliding bar convenient for expanding mechanism.
Further, cavity resigning top is provided with step structure on shell, screw lid is movably arranged on Step-edge Junction
More than one rotation shift plate is provided on structure, on screw lid.
The tracheotomy extension fixture of the present invention, lower end expansion part is in contraction state when the device is initial, expands at this time
Part cooperation expanded film is in minimum outer diameter state, the channel that the lower end expanded film partial insertion of device is expanded
In, screw lid then is rotated with hand, helical tooth synchronizes rotation thereon for screw lid drive, because being engaged with circumferential direction on helical tooth
The gear of distribution, when helical tooth rotates, rotating bar synchronizes downwards rotation, and the sliding sleeve in four-bar mechanism is moved,
Expansion part drives expanded film to synchronize and is expanded at this time so that circumferentially distributed expansion part is in maximum outside diameter state, at this time
Channel is expanded part with expanded film support to maximum, and to carry out next step operation, which, which can quantify, adjusts stroke, letter
It is single convenient and practical.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is structure chart when tracheotomy extension fixture of the present invention is unexpanded；
Fig. 2 is direct-view figure when tracheotomy extension fixture of the present invention is unexpanded；
Structure chart when Fig. 3 is tracheotomy extension fixture expansion of the present invention；
Direct-view figure when Fig. 4 is tracheotomy extension fixture expansion of the present invention；
Fig. 5 is internal structure chart when tracheotomy extension fixture of the present invention is unexpanded；
Internal structure chart when Fig. 6 is tracheotomy extension fixture expansion of the present invention；
Fig. 7 is the structure chart of tracheotomy extension fixture middle casing of the present invention；
Fig. 8 is the structure chart of the first swivel becket, the second swivel becket in tracheotomy extension fixture of the present invention；
Fig. 9 is structure chart when four-bar mechanism is shunk in tracheotomy extension fixture of the present invention；
Figure 10 is a kind of structure chart of angle when four-bar mechanism is stretched out in tracheotomy extension fixture of the present invention；
Figure 11 is the structure chart of another kind angle when four-bar mechanism is stretched out in tracheotomy extension fixture of the present invention；
Figure 12 is the structure chart of rotating bar in tracheotomy extension fixture of the present invention；
Figure 13 is the structure chart that fixed link is oriented in tracheotomy extension fixture of the present invention；
Figure 14 is the structure chart of sliding bar in tracheotomy extension fixture of the present invention；
Figure 15 is the structure chart of screw lid in tracheotomy extension fixture of the present invention；
Wherein reference numeral is：1, shell；2, screw lid；3, expanded film；4, through-hole；5, it is oriented to fixed link；6, rotating bar；7、
Connecting rod；8, sliding sleeve；9, sliding bar；10, gear；11, helical tooth；12, the first swivel becket；13, the second swivel becket；14, it assists
Fixed link；15, fixed block；16, long straight slot；17, guide pad；18, expansion pipe；19, cavity is stepped down；20, elongated slot is stepped down；21, it allows
Position hole；22, step structure；23, shift plate is rotated；24, anchorage bar.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
As shown in Fig. 1 to 15, a kind of tracheotomy extension fixture of the embodiment of the present invention, including：Shell 1, expanding mechanism,
Screw lid 2, expanded film 3；Through-hole 4 is offered on shell 1, the quantity of expanding mechanism is multiple, and multiple expanding mechanisms are circumferentially set
It sets on shell 1 and stretches into through-hole 4, expanding mechanism includes：It is oriented to fixed link 5, rotating bar 6, connecting rod 7, sliding sleeve 8, sliding
Bar 9, expansion part；Expansion part includes expansion pipe 18, and expansion pipe 18 includes the bending section for bending towards 4 axis of through-hole, is oriented to fixed link 5
It is arranged on shell 1, gear 10 is provided in rotating bar 6, it is hinged successively is oriented to fixed link 5, rotating bar 6, sliding sleeve 8, connecting rod 7
Four-bar mechanism is formed, is oriented in fixed link 5 and is provided with guide part, sliding bar 9 is movably arranged on guide part and connects with expansion part
It connects, expansion part movable set is provided with helical tooth 11 in sliding sleeve 8 on screw lid 2, expanded film 3 is arranged in multiple expansions
On part；Screw lid 2 is movably arranged on shell 1 and helical tooth 11 is engaged with multiple gears 10, and rotation screw lid 2 will drive multiple
Gear 10 rotates and makes four-bar mechanism that multiple expansion parts, expanded film 3 be driven to synchronize expansion or receipts in through-hole 4 successively
Contracting.It is covered with an Extendable cycles film 3 on the expansion pipe 18 of even circumferential distribution, when 18 outer diameter of expansion pipe of even circumferential distribution
When opening to maximum, expanded film 3 is tightened up.
The tracheotomy extension fixture of the present invention, lower end expansion part is in contraction state when the device is initial, expands at this time
Part cooperation expanded film 3 is in minimum outer diameter state, 3 partial insertion of lower end expanded film of device is expanded logical
In road, screw lid 2 then is rotated with hand, helical tooth 11 synchronizes rotation to the drive of screw lid 2 thereon, because being nibbled on helical tooth 11
Conjunction has circumferentially distributed gear 10, and when helical tooth 11 rotates, rotating bar 6 synchronizes rotation, the cunning in four-bar mechanism downwards
Dynamic set 8 is moved, and expansion part drives expanded film 3 to synchronize and expanded at this time so that circumferentially distributed expansion part is in most
Big outer diameter state, channel is expanded part at this time and maximum is arrived in the support of expanded film 3, and to carry out next step operation, which can
Quantitatively adjust stroke, simple and convenient practicality.
Preferably, device further includes the first swivel becket 12, the second swivel becket 13, the first swivel becket 12, the second swivel becket
13 are arranged on shell 1, are oriented to fixed link 5, the hinged place between rotating bar 6 wears the first swivel becket 12, be oriented to fixed link 5,
Hinged place between connecting rod 7 wears the second swivel becket 13, is consolidated to expanding mechanism by the first swivel becket 12, the second swivel becket 13
It is fixed.
The first swivel becket 12 is identical as 13 size of the second swivel becket and thickness in the present apparatus, the first swivel becket 12 and second turn
About 13 rotating ring arranges, hinge is dynamic on the first swivel becket 12 is connected with rotating bar 6, several rotating bars 6 on the first swivel becket 12 around
The distribution of 12 even circumferential of the first swivel becket（The present embodiment uses 12 groups）.
Preferably, expanding mechanism further includes that bar 14 is auxiliarily fixed, it is oriented to fixed link 5, bar 14 is auxiliarily fixed is fixedly connected
Between the first swivel becket 12, the second swivel becket 13, rotating bar 6, connecting rod 7, which are hinged on, to be oriented to fixed link 5, bar 14 is auxiliarily fixed
Between.
It has been respectively fixedly connected on first swivel becket 12 of each 6 both sides of rotating bar and has been oriented to fixed link 5 and bar is auxiliarily fixed
14, it is oriented to fixed link 5 and bar 14 is auxiliarily fixed is fixedly connected respectively with the first swivel becket 12 and the second swivel becket 13, fixed guide
Fixed pole 5 plays the role of positioning to rotating bar 6 in the both sides of rotating bar 6 with bar 14 is auxiliarily fixed, and prevents rotating bar 6 in the first swivel becket
It shifts when being rotated on 12.
Preferably, being provided with more than one fixed block 15, fixed block 15 on the first swivel becket 12, the second swivel becket 13
It is connected on shell 1.
Several fixed blocks 15 are distributed in the rest even circumferential of first swivel becket 12 and the second swivel becket 13, fixed
First swivel becket 12 is fixedly connected with the second swivel becket 13 with shell 1 by block 15.
Preferably, offering long straight slot 16 on sliding bar 9, guide part includes T fonts guide pad 17, and guide pad 17 is arranged
In long straight slot 16.
Sliding bar 9 is provided with perforative long straight slot 16 up and down along long extreme direction in centre position, is oriented to the T of 5 upper end of fixed link
Font guide pad 17 is stuck in the long straight slot 16 of sliding bar 9 so that being oriented to sliding bar 9 during sliding bar 9 moves
Effect also defines sliding bar 9 and drives expansion pipe 18 that cannot carry out vertical direction movement, can only carry out 16 direction of long straight slot
It is mobile, when sliding bar 9 moves forward so that guide pad 17 withstands on long 16 rearmost end of straight slot, axis of the expansion pipe 18 apart from through-hole 4
Line is nearest, and the expansion pipe 18 of circle distribution is in minimum outer diameter state at this time, so that guide pad 17 is withstood on when sliding bar 9 moves backward
When long 16 front end of straight slot, the expansion pipe 18 of circle distribution is in maximum outside diameter state, expands the lower end position of pipe 18 to centre
4 axis direction of through-hole is bent so that one encloses the lower ends that pipe 18 is expanded when several expansion 18 even circumferentials of pipe distributions in gathering
Shape.
The upper end of guiding fixed link 5 is fixed as one and has the guide pad 17 of T fonts, is oriented to fixed link 5 and bar 14 is auxiliarily fixed
It cuts with scissors to move on second swivel becket 13 in centre position and is connected with connecting rod 7, be oriented to fixed link 5 and bar 14 is auxiliarily fixed simultaneously also to connecting rod
7 rotation play the guiding role, and the dynamic both ends for being connected with anchorage bar 24 are cut with scissors in 7 centre position of connecting rod respectively with 6 centre position of rotating bar,
The both ends of dynamic connection sliding sleeve 8 are cut with scissors in the rear end of rotating bar 6 and connecting rod 7 simultaneously, and sliding sleeve 8 is towards the first swivel becket 12 and second turn
The end face of the cyclic annular axis of rotating ring 13 is arc surface, which is convenient for increasing aisle spare when subsequent procedures.
Preferably, gear 10 is partial gear structure, gear 10 is arranged in the end of rotating bar 6, be oriented to fixed link 5 with
Gear 10 is hinged.
The rod segment of rotating bar 6 length identical with connecting rod 7 so that sliding sleeve 8 is in vertical state, be oriented to fixed link 5,
The rod segment of rotating bar 6, connecting rod 7, sliding sleeve 8, the first swivel becket 12 and the second swivel becket 13 form four-bar mechanism so that when turning
Sliding sleeve 8 remains that vertical state, the effect of anchorage bar 24 are so that four-bar mechanism when lever 6 is rotated with connecting rod 7
More stablize and fasten, expansion pipe 18 is connected to inside sliding sleeve 8, expansion pipe 18 is in elongate cylindrical shape, expands 18 upper end of pipe and cunning
The lower face of lever 9 is fixedly connected with one.
Preferably, shell 1 is circular ring shape, cavity resigning 19 is offered on shell 1, expanding mechanism setting is stepped down in cavity
In 19, it is further opened on shell 1 and carries out the flexible resigning of long straight slot 16 20 convenient for expanding mechanism and allowed convenient for what sliding bar 9 stretched
Position hole 21.
Shell 1 is provided with the first swivel becket 12 with the four-bar mechanism part that the second swivel becket 13 is connect with circumference thereon
The cavity resigning 19 of similar annulus and elongated slot step down 20 so that four-bar mechanism is rotated, and shell 1 moves back sliding bar 9
Dynamic to be provided with relief hole 21 on the outer wall, the generally circular ring shape of shell 1, centre is that through-hole 4 is convenient for surgical procedure.
Preferably, being located at 19 tops of cavity resigning on shell 1 is provided with step structure 22, screw lid 2 is movably arranged on
On step structure 22, more than one rotation shift plate 23 is provided on screw lid 2.
1 upper plenum of shell resigning, 19 both sides inner wall upper ends are provided with step structure 22, so as in 1 upper ends annulus of shell
The lower face of the screw lid 2 of shape, screw lid 2 is spiral toothing, and upper surface circle distribution has rotation shift plate 23, rotating bar 6
Upper end is partial gear structure, 10 part of gear of the rotating bar 6 of circle distribution meshing spiral lid 2 simultaneously on the first swivel becket 12
Helical tooth 11, and by structure design all 6 angles of rotating bar being engaged on helical tooth 11 are consistent so that
Remain that distance of the sliding sleeve 8 of vertical state apart from 4 central axis of through-hole is always consistent on four-bar mechanism so that institute
There is the expansion pipe 18 that even circumferential is distributed that can synchronize the relative position of holding and 4 central axis of through-hole always, using helical tooth
11 are all rotations for enabling to it to engage when rotating screw lid 2 by rotating to control the advantage of rotating bar 6
Bar 6 synchronizes rotation with identical rotating speed so that all expansion pipes 18, which can synchronize, retreats.
When needing progress in use, lower end expansion pipe 18 is in contraction state when the device is initial, expansion pipe 18 is matched at this time
It closes expanded film 3 and is in minimum outer diameter state, the channel that 3 partial insertion of lower end expanded film of device is expanded
In, then use the rotation shift plate 23 of 1 upper end of hand roll-shell, screw lid 2 that its helical tooth 11 being fixed as one is driven to synchronize
Rotation, because being engaged with 10 part of gear of the rotating bar 6 of even circumferential distribution on helical tooth 11, when helical tooth 11 rotates,
Rotating bar 6 synchronizes rotation downwards around the first swivel becket 12, because being oriented to fixed link 5, rotating bar 6, connecting rod 7 and sliding
8 composition four-bar mechanism of set, sliding sleeve 8 keep vertical state to far from through-hole 4 axially direction movement, are moved in sliding sleeve 8
In the process, drive expansion pipe 18 in the horizontal direction far from synchronizing moving in 4 axially direction of through-hole, because 18 upper end of expansion pipe is solid
Surely it is connected with sliding bar 9, sliding bar 9 is provided with perforative long straight slot 16 up and down in centre position along long extreme direction, is oriented to fixed link 5
The T fonts guide pad 17 of upper end is stuck in the long straight slot 16 of sliding bar 9 so as to sliding bar 9 during sliding bar 9 moves
Guiding role is carried out, sliding bar 9 is also defined and drives expansion pipe 18 that cannot carry out vertical direction movement, long straight slot can only be carried out
The movement in 16 directions so that sliding sleeve 8, which drives, expands the expansion that pipe 18 carries out expansion pipe 18 in sliding bar 9 along 16 direction of long straight slot
Zhang Yidong expands the drive expanded film 3 of pipe 18 and synchronizes and expanded, so that guide pad 17 is withstood on when sliding bar 9 moves backward at this time
When long 16 front end of straight slot, the expansion pipe 18 of circle distribution is in maximum outside diameter state, and channel is expanded pipe 18 and expansion at this time
The support of film 3 is to maximum, to carry out next step operation.
The innovation of the invention consists in that：
1. sliding bar 9 is provided with perforative elongated straight slot 16 up and down along long extreme direction in centre position, it is oriented to the T of 5 upper end of fixed link
Font guide pad 17 is stuck in the long straight slot 16 of sliding bar 9 so that being oriented to sliding bar 9 during sliding bar 9 moves
Effect also defines sliding bar 9 and drives expansion pipe 18 that cannot carry out vertical direction movement, can only carry out 16 direction of long straight slot
Mobile, when sliding bar 9 moves forward so that guide pad 17 withstands on long 16 rearmost end of straight slot, expansion pipe 18 is apart from 4 axis of through-hole
Recently, the expansion pipe 18 of circle distribution is in minimum outer diameter state at this time, so that guide pad 17 is withstood on length when sliding bar 9 moves backward
When 16 front end of straight slot, the expansion pipe 18 of circle distribution is in maximum outside diameter state.
2. the helical tooth of 10 part of gear of the rotating bar 6 of circle distribution while meshing spiral lid 2 on the first swivel becket 12
11, and by structure design all 6 angles of rotating bar being engaged on helical tooth 11 are consistent, using helical tooth 11
It is all rotating bars for enabling to it to engage when rotating screw lid 2 by rotating to control the advantage of rotating bar 6
6 synchronize rotation with identical rotating speed so that all expansion pipes 18, which can synchronize, retreats.
3. the rod segment of rotating bar 6 length identical with connecting rod 7 makes sliding sleeve 8 be in vertical state, it is oriented to fixed link
5, the rod segment of rotating bar 6, connecting rod 7, sliding sleeve 8, the first swivel becket 12 and the second swivel becket 13 form four-bar mechanism so that when
Sliding sleeve 8 remains that vertical state, the effect of anchorage bar 24 are so that four bar machines when rotating bar 6 is rotated with connecting rod 7
Structure more stablizes and fastening.
4. the rod end of 10 front end of gear is 6 structure of rotating bar, rear end is the disc-shaped structure of partial gear 10 so that is passed through
11 engagement rotation of helical tooth with screw lid 2 is to drive 6 part of rotating bar of front end to carry out angular turn, so as to drive
Four-bar mechanism.
5. the first swivel becket 12 is arranged with the four-bar mechanism part that the second swivel becket 13 is connect with circumference thereon for shell 1
Have the cavity of similar annulus step down 19 and elongated slot step down 20 so that four-bar mechanism is rotated, and shell 1 for sliding bar 9 backward
Mobile to be provided with relief hole 21 on the outer wall, the generally circular ring shape of shell 1, centre is that through-hole 4 is convenient for surgical procedure, on shell 1
19 both sides inner wall upper ends of cavity resigning are provided with step structure 22, so as in the screw lid 2 of 1 upper ends circular ring shape of shell.
6. it is in elongate cylindrical shape to expand pipe 18,18 upper end of expansion pipe is fixedly connected with one with the lower face of sliding bar 9, expands
The lower end position of pipe 18 is bent to 4 axis direction of intermediate throughholes so that when several 18 even circumferentials of expansion pipe of circle are distributed
The lower end of pipe 18 is expanded in shape is collapsed, and is covered with an Extendable cycles film 3 on the expansion pipe 18 of even circumferential distribution, is worked as even circumferential
When 18 outer diameter of expansion pipe of distribution is flared to maximum, expanded film 3 is tightened up.
7. being respectively fixedly connected on the first swivel becket 12 of 6 both sides of each rotating bar and being oriented to fixed link 5 and be auxiliarily fixed
Bar 14 is oriented to fixed link 5 and bar 14 is auxiliarily fixed is fixedly connected respectively with the first swivel becket 12 and the second swivel becket 13, guiding
Fixed link 5 plays the role of positioning to rotating bar 6 in the both sides of rotating bar 6 with bar 14 is auxiliarily fixed, and prevents rotating bar 6 in the first rotation
It shifts when being rotated on ring 12.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of tracheotomy extension fixture, which is characterized in that including：Shell, expanding mechanism, screw lid, expanded film；It is described
Through-hole is offered on shell, the quantity of the expanding mechanism is multiple, and multiple expanding mechanisms are circumferentially provided on the shell
It above and stretches into the through-hole, the expanding mechanism includes：It is oriented to fixed link, rotating bar, connecting rod, sliding sleeve, sliding bar, expansion
Part；The guiding fixed link setting on the housing, is provided with gear, the guiding fixed link, rotation in the rotating bar
Bar, sliding sleeve, connecting rod hingedly form four-bar mechanism successively, and guide part is provided in the guiding fixed link, and the sliding bar is lived
Dynamic to be arranged on the guide part and connect with the expansion part, the expansion part movable set is described in the sliding sleeve
Helical tooth is provided on screw lid, the expanded film is arranged on multiple expansion parts；The screw lid is movably arranged on
On the shell and the helical tooth is engaged with multiple gears, and multiple gear rotations will be driven by rotating the screw lid
And make the four-bar mechanism that multiple expansion parts, the expanded film be driven to synchronize expansion in the through-hole successively
Or it shrinks.
2. extension fixture according to claim 1, which is characterized in that described device further include the first swivel becket, second turn
Rotating ring, first swivel becket, the second swivel becket are arranged on the housing, the hinge being oriented between fixed link, rotating bar
The place of connecing wears first swivel becket, and the hinged place being oriented between fixed link, connecting rod wears second swivel becket.
3. extension fixture according to claim 2, which is characterized in that the expanding mechanism further includes that bar is auxiliarily fixed, institute
It states and is oriented to fixed link, bar is auxiliarily fixed is fixedly connected between first swivel becket, the second swivel becket, the rotating bar, company
Bar is hinged on the guiding fixed link, is auxiliarily fixed between bar.
4. extension fixture according to claim 2, which is characterized in that be arranged on first swivel becket, the second swivel becket
There are one above fixed block, the fixed block connection is on the housing.
5. extension fixture according to claim 1, which is characterized in that long straight slot is offered on the sliding bar, it is described to lead
Include T font guide pads to part, the guide pad is arranged in the long straight slot.
6. extension fixture according to claim 1, which is characterized in that the gear is partial gear structure, the gear
It is arranged in the end of the rotating bar, the guiding fixed link is hinged with the gear.
7. extension fixture according to claim 1, which is characterized in that multiple expanding mechanisms are circumferentially uniformly arranged, institute
It is in be vertically arranged to state expansion part.
8. extension fixture according to claim 1, which is characterized in that the expansion part includes that expansion is managed, the expansion pipe
It include the bending section for bending towards the through-bore axis.
9. extension fixture according to claim 1, which is characterized in that the shell is circular ring shape, is opened up on the shell
There are cavity resigning, the expanding mechanism setting to be further opened on the shell convenient for the dilator in cavity resigning
Structure carries out the relief hole that flexible elongated slot steps down and stretches convenient for the sliding bar.
10. extension fixture according to claim 1, which is characterized in that be located at cavity resigning top on the shell
It is provided with step structure, the screw lid is movably arranged on the step structure, more than one is provided on the screw lid
Rotation shift plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810311634.7A CN108378882B (en) | 2018-04-09 | 2018-04-09 | A kind of tracheotomy extension fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810311634.7A CN108378882B (en) | 2018-04-09 | 2018-04-09 | A kind of tracheotomy extension fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108378882A true CN108378882A (en) | 2018-08-10 |
| CN108378882B CN108378882B (en) | 2019-11-22 |
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ID=63072672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810311634.7A Expired - Fee Related CN108378882B (en) | 2018-04-09 | 2018-04-09 | A kind of tracheotomy extension fixture |
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| Country | Link |
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| CN (1) | CN108378882B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109330733A (en) * | 2018-11-30 | 2019-02-15 | 李永彬 | A kind of livestock wound circumference synchronization extension fixture |
| CN109821142A (en) * | 2019-04-11 | 2019-05-31 | 河南科技大学第一附属医院 | A kind of medical procteurynter of rotating disc type |
| CN110464521A (en) * | 2019-09-17 | 2019-11-19 | 蒋帼素 | External auditory canal expandable stent |
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|---|---|
| CN108378882B (en) | 2019-11-22 |
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