CN109758278A - A kind of self-expanding nasal sinus bracket and its fetching device - Google Patents
A kind of self-expanding nasal sinus bracket and its fetching device Download PDFInfo
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- CN109758278A CN109758278A CN201910076977.4A CN201910076977A CN109758278A CN 109758278 A CN109758278 A CN 109758278A CN 201910076977 A CN201910076977 A CN 201910076977A CN 109758278 A CN109758278 A CN 109758278A
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Abstract
The invention discloses a kind of self-expanding nasal sinus bracket and its fetching devices, are related to ear nose larynx the field of medical instrument technology.Wherein, a kind of self-expanding nasal sinus bracket, including support rod and the sliding part being movably set on support rod, one end of support rod constitutes fixing end；Several elastic expansion spokes are provided on support rod, the both ends of elastic expansion spoke are fixedly connected with fixing end and sliding part respectively；Elastic stretching part is additionally provided on support rod.A kind of fetching device for above-mentioned nasal sinus bracket, including connecting rod, successively movable sleeve is equipped with the first movable sleeve and the second movable sleeve in connecting rod, and limit is respectively equipped on the first movable sleeve and the second movable sleeve and hooks pawl and transmission item.The present invention provides easy to operate, application accuracy and comprehensive is helped to improve, it is ensured that therapeutic effect can be shortened treatment cycle, can reduce illness recurrence rate, and be avoided that a kind of self-expanding nasal sinus bracket and its fetching device of sequelae.
Description
Technical field
The present invention relates to ear nose larynx the field of medical instrument technology more particularly to a kind of self-expanding nasal sinus bracket and its pick and place dress
It sets.
Background technique
Nasal sinus is also known as paranasal sinus, paranasal sinus, is the sclerotin chamber of multiple gassiness around nasal cavity.The mucous membrane of nasal sinus all with schneiderian membrance
It is connected, thus bronchia mucosal inflammation, it can often involve sinus cavities mucous membrane, cause nasosinusitis.It is now recognized that the pathogenic factor master of nasosinusitis
If the obstruction of Dou Kou caused by due to various reasons leads to the infection in nasal sinus, wherein nasal polyp causes nasal sinus opening obstruction
Major reason, and the inflammatory stimulus of nasal sinus promotes the growth of nasal polyp in turn, forms vicious circle.
The treatment method of current nasosinusitis mainly has the methods of operation on nasal sinus under nasal-cavity administration, nasal endoscopes.Wherein, intranasally
Operation on nasal sinus is presently preferred treatment method under mirror.Operation on nasal sinus can thoroughly remove each Paranasal sinus diseases under nasal endoscopes, sufficiently open
Each nasal sinus Dou Kou is put, improves nasal sinus drainage, and retain normal tissue as far as possible, is a kind of minimally invasive hand of reservation function as far as possible
Art；But under nasal endoscopes operation on nasal sinus at high price, high recurrence rate, by operation excision nasal polyp Postoperative recurrent rate be
30%-50%, each patient will averagely carry out at least 1.5-4 times operation.And operation excision and change nose and nasal sinus
The anatomical structure of concha, nasal septum, nasal membrane etc., this kind of excision and reconstructive operation meeting will often be cut off by treating operation
Destruction is naturally filtered as provided by these structures and humidification function, leads to drying, bleeding, and incrustation increases the wind of infection
Danger, and may cause smell change, including hyposphresia, dysosmia, parosmia and anosmia.
If treated by the way of nasal-cavity administration, since there are intranasal group of the nasal polyp of swelling etc. for the nasal sinus of lesion
The blocking knitted, drug can not directly and accurately reach diseased region, cause drug therapy extremely slow, and nasal polyp can not timely root
It controls, still can block Dou Kou for a long time, so that treatment cycle is excessively very long.
Summary of the invention
For technical problem present in the above-mentioned prior art, the object of the present invention is to provide a kind of self-expanding nasal sinus brackets
And its fetching device, enable drug accurately and directly to reach the diseased region of patient, improve medication effect, shortens
Treatment cycle.
To achieve the above object, a kind of technical solution provided by the invention is:
A kind of self-expanding nasal sinus bracket, including support rod and the sliding part being movably set on support rod, the sliding part edge
The axial direction of support rod is in sliding setting, and one end of the support rod constitutes fixing end；
Be provided with several elastic expansion spokes on the support rod, the both ends of the elastic expansion spoke respectively with fixing end and cunning
Moving part is fixedly connected；When the sliding part is along support rod sliding and close fixing end, the elastic expansion spoke expands outward
Bending；
The elastic stretching part for being connected and fixed end and sliding part is additionally provided on the support rod, the elastic stretching part is to cunning
Moving part applies pulling force and sliding part is driven to slide towards fixing end；
Symptomatic drugs are provided on the elastic expansion spoke or support rod.
By using above-mentioned technical proposal, in use, the nasal sinus bracket is first integrally inserted into patient's nasal cavity by doctor, so that
Each elastic expansion spoke moves closer at where nasal polyp on support rod；Then, the releasable sliding part of doctor, elastic stretching part meeting
Pulling force is applied to sliding part and sliding part is slid towards the direction close to fixing end.In the process, sliding part can be squeezed persistently
Each elastic expansion spoke is pressed, so that each elastic expansion spoke starts bending deformation and integrally towards lateral expansion；When each elastic expansion
When spoke starts expansion, each elastic expansion spoke can push against the nasal polyp at Dou Kou, and nasal polyp is integrally strutted；In this way, should
Nasal sinus bracket can be stable be mounted on lesion.At this point, due to being previously provided with to the ill on elastic expansion spoke or support rod
Drug, the symptomatic drugs can accurately reach diseased region and directly act on herein.In this way, enable drug quasi-
The diseased region for really and directly reaching patient, fully ensures that medication effect, greatly shortens treatment cycle, guarantees nasosinusitis
Timely radical cure can be obtained；Meanwhile the recurrence rate of nasosinusitis is reduced, and avoid operation on nasal sinus institute under nasal endoscopes possible concurrent
Disease.
The present invention is further arranged to: the support rod is in hollow tubular structure, and circumference is equal on the support rod lateral wall
If even be provided with arterial highway sliding slot, each sliding slot is along the axially extending of support rod；
The sliding part is loose collar, has been arranged in a one-to-one correspondence on the loose collar inner sidewall several for matching with the sliding of each sliding slot
The claw of conjunction.
By using above-mentioned technical proposal, loose collar forms sliding with each sliding slot on support rod by each claw and matches
It closes, so that the sliding motion that loose collar can be flexible and stable on support rod.
The present invention is further arranged to: the sliding slot runs through support rod lateral wall, and each claw prolongs along corresponding card slot
It extends on the inside of support rod；
The elastic stretching part is extension spring, and the extension spring is embedded on the inside of support rod, and the extension spring is separate
One end of fixing end is fixedly connected with each claw.
By using above-mentioned technical proposal, when loose collar is integrally released, since extension spring is in elongate always
State, extension spring can apply pulling force to loose collar by claw, slide so that loose collar is whole towards fixing end side, in turn
Realize the bending and expansion of each elastic expansion spoke.
The present invention is further arranged to: the symptomatic drugs are evenly applied on elastic expansion spoke and form slow releasing medicinal
Layer.
By using above-mentioned technical proposal, symptomatic drugs are coated on elastic expansion spoke in the form of slow releasing medicinal layer,
When elastic expansion spoke struts nasal polyp, symptomatic drugs can be directly entered nasal polyp, and then effectively treat the diseased region.
Meanwhile symptomatic drugs can be human body slow-absorbing on slow releasing medicinal layer, realize continued treatment effect whithin a period of time.
The present invention is further arranged to: being gone back movable sleeve on the support rod and is equipped with the first connection ring for being set in distance and the
Two connection rings, first connection ring and the second connection ring are respectively positioned between fixing end and sliding part, and first connection ring
The second connection ring is compared closer to fixing end；
The elastic expansion spoke is provided with three groups along the axially spaced-apart of support rod, and each group of elastic expansion spoke is at least by three
Root is constituted around the elastic expansion spoke that support rod is circularly and evenly distributed, and each group elastic expansion spoke is according to itself and fixing end
The sequence of distance from the near to the distant successively constitutes the first expansion spoke group, the second expansion spoke group and third expansion spoke group；
The both ends of each elastic expansion spoke are fixedly connected with fixing end and the first connection ring respectively in first expansion spoke group, described
The both ends of each elastic expansion spoke are fixedly connected with the first connection ring and the second connection ring respectively in second expansion spoke group, described
Each elastic expansion spoke is fixedly connected with the second connection ring and sliding part respectively in third expansion spoke group.
By using above-mentioned technical proposal, elastic expansion spoke is arranged to three groups along the axial direction of support rod, but doctor will
After the nasal sinus bracket is inserted into patient's nasal cavity, by the collective effect of elastic stretching part and sliding part, the first expansion spoke group, second
Expansion spoke group and third expansion spoke group can expand bending simultaneously.The setting of three groups of elastic expansion spokes is so that after expansion
Spoke profile also implies that elastic expansion spoke will have bigger contact area between nasal polyp closer to cylindrical body.
The present invention is further arranged to: each elastic expansion spoke outer sheath is equipped with elastic membrane, above and below the elastic membrane
Edge is fixedly connected with the first expansion spoke group and third expansion spoke group respectively, expands spoke with second on the inside of the elastic membrane
Group outside abuts, and the slow releasing medicinal layer is evenly applied to the side that elastic membrane deviates from support rod.
By using above-mentioned technical proposal, when the first expansion spoke group, the second expansion spoke group and third expand spoke group
Simultaneously when expanding, elastic membrane can be close to the diseased region of patient, the slow releasing medicinal layer in elastic membrane can directly with patient's diseased region
Accuracy pesticide applying is realized in contact；Meanwhile spraying area can be increased by elastic membrane, help to realize complete treatment to diseased region,
Guarantee therapeutic effect indirectly.
The present invention is further arranged to: the support rod is equipped with sustained-release administration component；The sustained-release administration component includes
The medicine-storing tube being fixedly installed on the inside of support rod, the medicine-storing tube are provided with dosing holes close to one end of fixing end；The drug storage
Piston propeller is movably set in cylinder, the piston propeller and medicine-storing tube collectively form piston mechanism, and the piston pushes away
It is fixedly connected into device far from one end of medicine-storing tube with claw.
Each elastic expansion spoke is in hollow tubular structure, and each elastic expansion spoke is close to one end of fixing end
Opening is connected to dosing holes, and offers several sustained release holes on each elastic expansion spoke.
By using above-mentioned technical proposal, when sliding part is slid by the effect of elastic stretching part towards fixing end, claw meeting
It is synchronous to push piston propeller, so that the drug in medicine-storing tube is sprayed through dosing holes.Due to dosing holes while being connected to each
Elastic expansion spoke, drug can enter each elastic expansion spoke and by each sustained release hole discharges thereon, and evenly dispersed applies
It is added on the diseased region of patient, realizes accuracy pesticide applying, guarantee therapeutic effect.
The present invention is further arranged to: its axial direction uniform intervals being provided with several precutting troughs on the support rod.
By using above-mentioned technical proposal, after the completion of nasal sinus mount, by the precutting trough being set on support rod,
Doctor can easily cut off support rod, remove the too long part of support rod.
To achieve the above object, another technical solution provided by the invention is:
A kind of fetching device applied to above-mentioned self-expanding nasal sinus bracket, including connecting rod, described connecting rod one end are detachably set
It is equipped with the detachable section for being fixedly connected with the end on support rod far from fixing end；
Movable sleeve is equipped with the first movable sleeve in the connecting rod, if the first movable sleeve lateral wall is hinged at support rod
It does the limit for being fastened with sliding part and hooks pawl, each limit hooks pawl and is circularly and evenly distributed；
Movable sleeve is gone back on first movable sleeve equipped with the second movable sleeve, the second movable sleeve outside is provided with transmission item, institute
State transmission item and limit hook pawl in being arranged in a one-to-one correspondence, and the both ends of the transmission item respectively with the second movable sleeve and corresponding limit
It is hinged to hook pawl.
By using above-mentioned technical proposal, before the completion of nasal sinus mount, connecting rod passes through detachable section and nasal sinus
One end of support rod on bracket is fixedly connected；At this point, limit, which hooks pawl, to be fastened with the formation of the sliding part on support rod, make
The state that each elastic expansion spoke is in non-bending deformation is obtained, facilitates doctor that nasal sinus bracket is integrally inserted into patient's nasal cavity.
Then, doctor can pull the second movable sleeve, and the second movable sleeve can be pulled corresponding limit to hook calvus deflection by each transmission item, be realized
Each limit hooks the expansion of pawl, so that limit hooks pawl and sliding part is detached from buckle state；Sliding part is released, subsequent each bullet
Property expansion spoke i.e. can start be bent and expand.After the completion of nasal sinus mount, doctor cuts off support rod, the fetching device
It is detached from nasal sinus bracket.When needing to remove nasal sinus bracket, doctor first unloads the detachable section in connecting rod, then makes
Connecting rod is directed at remaining support rod on nasal sinus bracket, which is stretched to nasal sinus near support, then towards far from limit
The side of position hook pulls the second movable sleeve so that each limit hook pawl expansion and with sliding part again snapping；Then, towards far from trouble
The side of person, which integrally pulls, pulls the first movable sleeve and the second movable sleeve, and the first movable sleeve can hook pawl by limit and pull sliding
Part completes the taking-up of nasal sinus bracket until entire nasal sinus bracket is extracted out from patient's nasal cavity.
The present invention is further arranged to: it includes the interconnecting piece for hinged first movable sleeve, the company that the limit, which hooks pawl,
Socket part is integrally formed the useful engaging portion being fastened with sliding part far from one end of the first movable sleeve；The engaging portion is far from it
Cutting edge is formed with the side of interconnecting piece junction.
By using above-mentioned technical proposal, by the way that cutting edge is arranged in engaging portion, when user hooks pawl towards close to limit
When side pushes the second movable sleeve, the second movable sleeve can push each limit to hook the synchronous tightening of pawl by each transmission item, to make
It obtains cutting edge and gradually pushes against support rod, until support rod is cut off, can not only cut off support rod redundance, it can also be easily real
The separation of existing nasal sinus bracket and the fetching device.
In conclusion the invention has the following advantages:
1, it comprehensively utilizes elastic stretching part and sliding part drives each elastic expansion spoke bending and expansion, so that each elastic expansion spoke
Item struts the nasal polyp of patient's lesion locations, and with the atrophy of nasal polyp, elastic expansion spoke can further be expanded, be protected always
It holds and avoids fitting closely with nasal cavity.It is equipped with simultaneously in the symptomatic drugs on elastic expansion spoke or support rod, it is easy to operate,
Accuracy pesticide applying can be achieved, fully ensure that therapeutic effect, help to shorten treatment cycle, it is ensured that effective treatment can be obtained in nasosinusitis,
And the recurrence rate of nasosinusitis is reduced, avoid the possible sequelae of operation on nasal sinus institute under nasal endoscopes；
2, by slow releasing medicinal layer or the sustained-release administration component being set on support rod, accuracy pesticide applying can be not only realized, but also can
Guarantee that administration coverage area is bigger, and then complete treatment is realized to patient's diseased region, further increases therapeutic effect；
3, the fetching device that pawl and transmission item are constituted is hooked by by connecting rod, the first movable sleeve, the second movable sleeve, limit, realized
The convenient pick-and-place of nasal sinus bracket greatly improves the convenience of doctor's operation.
Detailed description of the invention
Fig. 1 is the integrally-built axonometric schematic diagram of embodiment one in the present invention；
Fig. 2 is the integrally-built diagrammatic cross-section of embodiment one in the present invention；
Fig. 3 is that embodiment one is mainly used for embodying the structural schematic diagram of loose collar mounting means in the present invention；
Fig. 4 is the integrally-built axonometric schematic diagram of embodiment two in the present invention；
Fig. 5 is the integrally-built axonometric schematic diagram of embodiment three in the present invention；
Fig. 6 is the integrally-built axonometric schematic diagram of example IV in the present invention；
Fig. 7 is the integrally-built diagrammatic cross-section of example IV in the present invention；
Fig. 8 is the partial enlarged view of part A in Fig. 6, is mainly used for embodying sustained release hole；
Fig. 9 is the integrally-built axonometric schematic diagram of embodiment five in the present invention；
Figure 10 is that embodiment five is mainly used for embodying the structural schematic diagram that limit hooks pawl in the present invention.
Appended drawing reference: 1, support rod；101, sliding slot；102, precutting trough；2, head is pierced；3, expansion assembly；31, fixed ring；
32, loose collar；321, claw；33, elastic expansion spoke；331, it is sustained hole；301, the first expansion spoke group；302, the second expansion
Spoke group；303, third expands spoke group；4, extension spring；5, the first connection ring；6, the second connection ring；7, elastic membrane；8, delay
Release administration assembly；81, medicine-storing tube；811, dosing holes；82, piston propeller；9, connecting rod；91, detachable section；10, first is living
Dynamic set；11, the second movable sleeve；12, limit hooks pawl；121, interconnecting piece；122, engaging portion；1221, cutting edge；13, it is driven item.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is described in detail.
Embodiment one:
Referring to attached drawing 1, a kind of self-expanding nasal sinus bracket, can by the materials such as stainless steel, cochrome, Nitinol process and
At, it can also be by degradable metal such as magnesium, the formation such as pure iron can also be process using degradable high polymer material.The nose
Sinus bracket includes support rod 1, and support rod 1 is straight tube-like structure, and one end constitutes fixing end, and support rod 1 is where fixing end
The end face of one end, which is additionally provided with, pierces first 2.This pierces first 2 on the direction far from support rod 1 in shrinkage type structure, can pass through
Bonding, integrated molding, any mode of threaded connection kind are fixed on support rod 1；In actual use, piercing first 2 can be improved
Support rod 1 enters the convenience of nasal polyp cavity.Expansion assembly 3 is additionally provided on support rod 1, when support rod 1 is penetrated to patient
When diseased region, expansion assembly 3 is inflatable and struts the nasal polyp of lesion.
Referring to attached drawing 2, above-mentioned expansion assembly 3 includes the fixed ring 31 being arranged at intervals on support rod 1 and loose collar 32；Gu
Determine the fixing end that ring 31 can be fixed on support rod 1 by way of being bonded or welded, loose collar 32 is slidingly connected and support rod 1
On, it can be along the axial flexibly sliding of support rod 1.Expansion assembly 3 further includes swollen for being connected and fixed the elasticity of ring 31 and loose collar 32
Several, and the both ends difference of elastic expansion spoke 33 can be arranged in swollen spoke 33, the elastic expansion spoke 33 around 1 circumference of support rod
It is fixedly connected with fixed ring 31 and loose collar 32.In its natural state, each elastic expansion spoke 33 is in straightened condition, fixed ring
31, each elastic expansion spoke 33 and the whole shape that can form similar " casing " of loose collar 32；When loose collar 32 is pushed simultaneously
When close to fixed ring 31, loose collar 32 will push each elastic expansion spoke 33 to be bent and expand, and then form similar " lantern "
Shape.
In conjunction with attached drawing 3, several claws 321, diameter of the claw 321 along loose collar 32 are provided on above-mentioned 32 inner sidewall of loose collar
To extending internally；Meanwhile in the present embodiment, the quantity of the claw 321 can be 2,3 or 4, preferably 3；Each card
Pawl 321 is circularly and evenly distributed, and above-mentioned loose collar 32 and each claw 321 collectively form sliding part.It is corresponding, on support rod 1
Several sliding slots 101 for the sliding cooperation of each claw 321 are arranged in a one-to-one correspondence, each sliding slot 101 is along the axial direction of support rod 1
Extend, and along the side wall for extending radially through support rod 1 of support rod 1.When installation, each claw 321 is each passed through corresponding sliding slot 101
And 1 inside of support rod is extended to, the length that sliding slot 101 extends is to limit loose collar 32 along the sliding range of support rod 1.The sliding
Range constitutes the sliding section on support rod 1, and support rod 1 goes back uniform intervals and is provided with several pre-cut sliding in section where section
Slot 102, precutting trough 102 are notch not fully penetrated on support rod 1；After nasal sinus bracket, which is installed, to be stablized, doctor can be by pre-
Grooving 102 is by partial cut extra on support rod 1.
As shown in Fig. 2, it is additionally provided with elastic stretching part inside support rod 1, which can be extension spring
4, extension spring 4 is in tensional state always, and the both ends of extension spring 4 are fixedly connected with fixing end and claw 321 respectively.Cause
This, after loose collar 32 is released, extension spring 4 can apply pulling force to loose collar 32, so that loose collar 32 slides along support rod 1
And close to fixing end；In the process, loose collar 32 can squeeze each elastic expansion spoke 33, so that each elastic expansion spoke 33 is sent out
Raw bending and expansion.
It is uniformly coated with slow releasing medicinal layer on the lateral wall of above-mentioned each elastic expansion spoke 33, includes for controlling in slow releasing medicinal layer
The symptomatic drugs of nasosinusitis are treated, which can contact and discharge with nasal wall and polyp, thus inhibit the regrowth of polyp,
Reduce the inflammation of nasal cavity.
The working principle of the present embodiment is: in actual use, after loose collar 32 is released, extension spring 4 can be to work
Rotating ring 32 applies pulling force, and loose collar 32 is driven to slide towards fixed ring 31；In the process, it is swollen to squeeze each elasticity for loose collar 32
Swollen spoke 33, so that the nasal polyp of lesion be strutted, realizes nasal sinus so that each elastic expansion spoke 33 bends and expands
Stablizing for bracket is set up.At this point, each elastic expansion spoke 33 is contacted with nasal wall or polyp, the medicine of suiting the medicine to the illness in slow releasing medicinal layer thereon
Object will gradually discharge, to effectively treat the diseased region of patient.
Embodiment two:
Referring to attached drawing 4, a kind of self-expanding nasal sinus bracket, with embodiment one the difference is that: it is also living on above-mentioned support rod 1
Dynamic to be arranged with the first connection ring 5 and the second connection ring 6, the first connection ring 5 is respectively positioned between fixed ring 31 and loose collar 32, and the
One connection ring 5 compares the second connection ring 6 closer to fixed ring 31.Meanwhile each elastic expansion spoke 33 can along the axial direction of support rod 1
It is divided into three groups, the elastic expansion spoke that each group of elastic expansion spoke 33 is at least circularly and evenly distributed by three around support rod 1
Item 33 is constituted, and each group elastic expansion spoke 33 is successively named as the according to its sequence at a distance from fixed ring 31 from the near to the distant
One expansion spoke group 301, second expands spoke group 302 and third expands spoke group 303.In the present embodiment, the first expansion spoke
Item group 301, second expands the quantity phase of elastic expansion spoke 33 included in spoke group 302 and third expansion spoke group 303
It together, and can be 3,4,5 or 6.
The both ends of each elastic expansion spoke 33 are respectively used to fixed ring 31 and the first connection ring in first expansion spoke group 301
5 are fixedly connected, and the both ends of each elastic expansion spoke 33 connect with the first connection ring 5 and second respectively in the second expansion spoke group 302
Ring 6 is connect to be fixedly connected, third expand the both ends of each elastic expansion spoke 33 in spoke group 303 respectively with the second connection ring 6 and living
Rotating ring 32 is fixedly connected.Meanwhile first expands in the expansion spoke group 302 of spoke group 301, second and third expansion spoke group 303
Slow releasing medicinal layer is coated on the lateral wall of each elastic expansion spoke 33.
The working principle of the present embodiment is: in practical applications, after loose collar 32 is released, loose collar 32 will push three
The swollen elastic expansion spoke 33 of group starts simultaneously at expansion；When each elastic expansion spoke 33 struts polyp, three groups of elastic expansion spokes
Outer profile is close to cylinder after 33 expansions so that its to avoid contact with area with lesion nasal cavity bigger, on the one hand can be effectively
Nasal polyp is strutted, nasal cavity is opened, on the other hand more large access area means larger range of target administration, can be more effectively
Treat nasal polyp.
Embodiment three:
Referring to attached drawing 5, a kind of self-expanding nasal sinus bracket, with embodiment two the difference is that: it is above-mentioned first expansion spoke
The outer sheath of the 301, second expansion spoke group 302 of group and third expansion spoke group 303 is equipped with elastic membrane 7, about 7 two sides of elastic membrane
Edge is fixed with the first expansion spoke group 301 and third expansion spoke group 303 respectively, and above-mentioned slow releasing medicinal layer is evenly applied to bullet
The outside of property film 7.
The working principle of the present embodiment is: when the first expansion spoke group 301, second expands spoke group 302 and third expansion
Spoke group 303 in the raw when, elastic membrane 7 is in tensional state and forms cylinder-like structure.When the first expansion spoke group
301, when the second expansion spoke group 302 and third expansion spoke group 303 expand simultaneously, elastic membrane 7 is still in tensional state；This
When, elastic membrane 7 can abut nasal wall or polyp, and slow releasing medicinal layer thereon slow release and can effectively treat diseased region.Herein
In the process, elastic membrane 7 can increase treatment area, comprehensive spraying pesticide be realized, to improve therapeutic effect.
Example IV:
Participate in attached drawing 6 and attached drawing 7, a kind of self-expanding nasal sinus bracket, with embodiment one the difference is that: in support rod 1
It is additionally provided with sustained-release administration component 8.Sustained-release administration component 8 includes medicine-storing tube 81, and medicine-storing tube 81 is axially set in along support rod 1
The inside of extension spring 4, and be fixedly connected by connecting plate with the inner wall of support rod 1；Above-mentioned suit the medicine to the illness is stored in medicine-storing tube 81
Drug, and medicine-storing tube 81 is also provided with dosing holes 811 close to the side of fixing end.Sustained-release administration component 8 further includes being inserted in storage
Piston propeller 82 in cylindrantherae 81, piston propeller 82 and medicine-storing tube 81 collectively form a piston mechanism；Piston propeller 82
One end far from medicine-storing tube 81 is fixedly connected with above-mentioned claw 321.
Above-mentioned each elastic expansion spoke 33 is in hollow tubular structure, and each elastic expansion spoke 33 is close to the one of fixing end
End opening passes through conduit and is connected to above-mentioned dosing holes 811.In conjunction with attached drawing 8, on the side wall of each elastic expansion spoke 33 uniformly
It is provided with several sustained release holes 331.
Embodiment five:
Referring to attached drawing 9, a kind of fetching device of self-expanding nasal sinus bracket is used for doctor, with easily into the nasal cavity of patient
Pick and place nasal sinus bracket mentioned by any of the above-described embodiment.The fetching device includes connecting rod 9, and one end of connecting rod 9 is provided with
Detachable section 91；Detachable section 91 is arranged coaxially with connecting rod 9, and can be connected through a screw thread or the mode and connecting rod of grafting
The formation of 9 adjacent end portions is detachably connected.
Movable sleeve is equipped with the first movable sleeve 10 in connecting rod 9, and limit is hinged on the lateral wall of the first movable sleeve 10 and hooks pawl
12；In the present embodiment, limit hook pawl 12 is located at the first movable sleeve 10 close to the side of detachable section 91, and quantity can be
2,3 or 4, preferably 3；Also, each limit hooks pawl 12 and is circularly and evenly distributed around the first movable sleeve 10.First activity
Movable sleeve is gone back equipped with the second movable sleeve 11, side second of above-mentioned first movable sleeve 10 far from detachable section 91 in the outside of set 10
The stretching of movable sleeve 11, and the second movable sleeve 11 only slides on the first movable sleeve 10.It is cut with scissors on the lateral wall of second movable sleeve 11
It is connected to transmission item 13, it is in be arranged in a one-to-one correspondence, and each transmission item 13 is far from the second activity that transmission item 13, which hooks pawl 12 with above-mentioned limit,
It is hinged that one end of set 11 hooks pawl 12 with corresponding limit.
In conjunction with attached drawing 10, it is in hook solid that it is whole, which to hook pawl 12, for limit comprising in the interconnecting piece 121 and button for being integrally formed setting
Socket part 122.Wherein, interconnecting piece 121 is hinged on the first activity far from one end of itself and 122 junction of engaging portion with interconnecting piece 121
On set 10, and the link position for corresponding to transmission item 13 and limit hook pawl 12 may be disposed near the middle section of interconnecting piece 121.
In actual use, when each limit, which hooks pawl 12, shrinks simultaneously, each limit hook pawl 12 can by engaging portion 122 with it is above-mentioned
The formation of loose collar 32 is fastened；When artificially pulling the second movable sleeve 11, the second movable sleeve 11 can be drawn by each transmission item 13
Move each limit and hook pawl 12 so that each limit hook pawl 12 be unfolded and with 32 uncoupling of loose collar.Meanwhile when above-mentioned nasal sinus bracket is pacified
After the completion of putting, part extra on above-mentioned support rod 1 is cut off for convenience, engaging portion 122 is far from itself and 121 junction of interconnecting piece
Side also machine-shaping has cutting edge 1221, and the precutting trough 102 that cutting edge 1221 can be cooperatively connected in the sliding section of bar 9 is easily cut
Disconnected support rod 1.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
1. a kind of self-expanding nasal sinus bracket, which is characterized in that including support rod (1) and be movably set on support rod (1)
Sliding part, the sliding part is arranged along the axial direction of support rod (1) in sliding, and one end of the support rod (1) constitutes fixing end；
Several elastic expansion spokes (33), the both ends difference of the elastic expansion spoke (33) are provided on the support rod (1)
It is fixedly connected with fixing end and sliding part；When the sliding part is along support rod (1) sliding and close fixing end, the elasticity is swollen
The outside expansion bending of swollen spoke (33)；
The elastic stretching part for being connected and fixed end and sliding part, the elastic stretching part are additionally provided on the support rod (1)
Pulling force is applied to sliding part and sliding part is driven to slide towards fixing end；
Symptomatic drugs are provided on the elastic expansion spoke (33) or support rod (1).
2. a kind of self-expanding nasal sinus bracket according to claim 1, which is characterized in that
The support rod (1) is in hollow tubular structure, and the support rod (1) is if even circumferential is provided with arterial highway sliding slot on lateral wall
(101), each sliding slot (101) is along the axially extending of support rod (1)；
The sliding part is loose collar (32), and several be used for and each cunning has been arranged in a one-to-one correspondence on loose collar (32) inner sidewall
The claw (321) of slot (101) sliding cooperation.
3. a kind of self-expanding nasal sinus bracket according to claim 2, which is characterized in that
The sliding slot (101) runs through support rod (1) lateral wall, and each claw (321) extends to support rod along corresponding card slot
(1) inside；
The elastic stretching part is extension spring (4), and the extension spring (4) is embedded on the inside of support rod (1), and the stretching
Spring (4) is fixedly connected far from one end of fixing end with each claw (321).
4. a kind of self-expanding nasal sinus bracket according to claim 1, which is characterized in that the symptomatic drugs are evenly applied to
On elastic expansion spoke (33) and form slow releasing medicinal layer.
5. a kind of self-expanding nasal sinus bracket according to claim 4, which is characterized in that
Movable sleeve is gone back on the support rod (1) is equipped with the first connection ring (5) and the second connection ring (6) being set in distance, it is described
First connection ring (5) and the second connection ring (6) are respectively positioned between fixing end and sliding part, and first connection ring (5) is compared
Second connection ring (6) is closer to fixing end；
The elastic expansion spoke (33) is provided with three groups along the axially spaced-apart of support rod (1), each group of elastic expansion spoke
(33) it is at least constituted by three around the elastic expansion spoke (33) that support rod (1) is circularly and evenly distributed, and each group elasticity is swollen
Swollen spoke (33) successively constitutes the first expansion spoke group (301), second according to its sequence at a distance from fixing end from the near to the distant
Expand spoke group (302) and third expansion spoke group (303)；
First expansion spoke group (301) in each elastic expansion spoke (33) both ends respectively with fixing end and the first connection ring (5)
Be fixedly connected, it is described second expansion spoke group (302) in each elastic expansion spoke (33) both ends respectively with the first connection ring (5)
It is fixedly connected with the second connection ring (6), each elastic expansion spoke (33) is respectively with second in third expansion spoke group (303)
Connection ring (6) is fixedly connected with sliding part.
6. a kind of self-expanding nasal sinus bracket according to claim 5, which is characterized in that each elastic expansion spoke (33)
Outer sheath is equipped with elastic membrane (7), and elastic membrane (7) lower edges are expanded with the first expansion spoke group (301) and third respectively
Spoke group (303) is fixedly connected, and is abutted on the inside of the elastic membrane (7) on the outside of the second expansion spoke group (302), and the sustained release
Medicine layer is evenly applied to the side that elastic membrane (7) deviate from support rod (1).
7. a kind of self-expanding nasal sinus bracket according to claim 3, which is characterized in that
The support rod (1) is equipped with sustained-release administration component (8)；The sustained-release administration component (8) includes being fixedly installed on support
Medicine-storing tube (81) on the inside of bar (1), the medicine-storing tube (81) are provided with dosing holes (811) close to one end of fixing end；The storage
It is movably set in cylindrantherae (81) piston propeller (82), the piston propeller (82) and medicine-storing tube (81) collectively form piston
Mechanism, and the piston propeller (82) is fixedly connected far from the one end of medicine-storing tube (81) with claw (321)；
Each elastic expansion spoke (33) is in hollow tubular structure, and each elastic expansion spoke (33) is close to fixing end
It is open at one end to be connected to dosing holes (811), and several sustained release holes are offered on each elastic expansion spoke (33)
(331)。
8. a kind of self-expanding nasal sinus bracket according to claim 1, which is characterized in that along its axis on the support rod (1)
Uniform intervals are provided with several precutting troughs (102).
9. a kind of fetching device applied to the self-expanding nasal sinus bracket as described in any one of claim 1-8, which is characterized in that
Including connecting rod (9), described connecting rod (9) one end is detachably provided with for the end with fixing end separate on support rod (1)
The detachable section (91) being fixedly connected；
Movable sleeve is equipped with the first movable sleeve (10) on the connecting rod (9), and the first movable sleeve (10) lateral wall is close to support
It is hinged with several limits for being fastened with sliding part at bar (1) and hooks pawl (12), each limit hooks pawl (12) circumferentially
It is uniformly distributed；
Movable sleeve is gone back on first movable sleeve (10) equipped with the second movable sleeve (11), the second movable sleeve (11) outside setting
Have transmission item (13), the transmission item (13) hooks pawl (12) in being arranged in a one-to-one correspondence with limit, and the two of transmission item (13)
It is hinged that end hooks pawl (12) with the second movable sleeve (11) and corresponding limit respectively.
10. fetching device according to claim 9, which is characterized in that it includes for hinged that the limit, which hooks pawl (12),
The interconnecting piece (121) of one movable sleeve (10), the interconnecting piece (121) are integrally formed useful far from the one end of the first movable sleeve (10)
The engaging portion (122) being fastened with sliding part；Side of the engaging portion (122) far from itself and interconnecting piece (121) junction
Form cutting edge (1221).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910076977.4A CN109758278B (en) | 2019-01-27 | 2019-01-27 | Self-expansion nasal sinus support and taking and placing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910076977.4A CN109758278B (en) | 2019-01-27 | 2019-01-27 | Self-expansion nasal sinus support and taking and placing device thereof |
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| Publication Number | Publication Date |
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| CN109758278A true CN109758278A (en) | 2019-05-17 |
| CN109758278B CN109758278B (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910076977.4A Active CN109758278B (en) | 2019-01-27 | 2019-01-27 | Self-expansion nasal sinus support and taking and placing device thereof |
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| CN110680576A (en) * | 2019-10-23 | 2020-01-14 | 乐畅医疗器械(上海)有限公司 | Self-expanding medicine slow release stent and taking and placing device thereof |
| CN111588970A (en) * | 2020-05-29 | 2020-08-28 | 成都赛拉诺医疗科技有限公司 | Balloon dilatation device and manufacturing method thereof |
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Address after: Room 101 and 102, floor 1, No. 19, Lane 8666, Hunan Road, Xuanqiao Town, Pudong New Area, Shanghai Applicant after: Lechang Medical Instruments (Shanghai) Co., Ltd. Address before: Room 408, 4th Floor, 21 Building, No. 1-28 Lane 588 Tianxiong Road, Pudong New Area, Shanghai, 200120 Applicant before: Lechang Medical Instruments (Shanghai) Co., Ltd. |
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