CN203802656U - Compressible pupil expanding mechanism and pushing and injecting type pupil expanding device - Google Patents
Compressible pupil expanding mechanism and pushing and injecting type pupil expanding device Download PDFInfo
- Publication number
- CN203802656U CN203802656U CN201420152203.8U CN201420152203U CN203802656U CN 203802656 U CN203802656 U CN 203802656U CN 201420152203 U CN201420152203 U CN 201420152203U CN 203802656 U CN203802656 U CN 203802656U
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- China
- Prior art keywords
- compressible
- platycoria
- macro ring
- expanding
- open
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Abstract
The utility model discloses a compressible pupil expanding mechanism. The mechanism comprises at least two expanding rings and connecting pieces which are connected between every two adjacent expanding rings, wherein the at least two expanding rings are correspondingly and abreast arranged; each expanding ring comprises at least four edges, and the at least four edges surround to form an expanding hole; the expanding rings are provided with expanding states when the expanding holes are expanded and compressible states when the expanding holes are compressed. The expanding rings in the compressible pupil expanding mechanism and a pushing and injecting type pupil expanding device are provided with the expanding states and the compressible states, the expanding rings can be placed in the pupils after being compressed in advance, since the expanding rings are in the expanding states after natural elastic recovery, the pupils are expanded, the satisfying pupil expanding effect can be obtained, and the effective operation view is large.
Description
Technical field
This utility model relates to and is used for mechanicalness for intraocular surgery and expands the operating theater instruments of pupil, relates in particular to a kind of compressible platycoria mechanism and a kind of injection-type platycoria device.
Background technology
At present, in the operation such as cataract, vitrectomy, for various reasons, patient's rigidity pupillae is fixed, and pupil can not fall apart greatly, has a strong impact on operation technique.Have now various apparatuses for expanding pupil, these apparatuses usually need to do in addition auxiliary incision.Therefore in art, need the apparatus and the stab knife that does auxiliary incision of tractive iris.
Conventional operation method is: do 3-4 auxiliary incision at limbus of corneae with stab knife, iris tractive hook tractive iris is made to platycoria, pupil is usually square or triangular form, and mydriatic poor effect, affects surgical field of view, easily causes postoperative complication.
Although above-mentioned operating theater instruments can be opened large pupil, there is following problem:
1, operation need be done otch in addition, needs special tool simultaneously, increases financial burden;
2, the position of iris tractive is 3-4 point, makes pupil be square or triangle, platycoria poor effect, and effectively surgical field of view is little, affects operation technique;
3, while operation, need to change operating theater instruments, extend operating time;
4, corneal incision increases, and the risk of the postoperative intraocular infection of postoperative increase increases patient medical burden, easily causes medical tangle.
Utility model content
The technical problems to be solved in the utility model is, a kind of improved compressible platycoria mechanism and injection-type platycoria device are provided.
This utility model solves the technical scheme that its technical problem adopts: a kind of compressible platycoria mechanism is provided, comprise that at least two are opened macro ring and are connected to two adjacent connectors of opening between macro ring, open that macro ring is corresponding to be arranged side by side at least two, each macro ring of opening comprises at least four edges, at least four edges surrounds a wide-bore, opens macro ring and has open large state and the compressive state in the time that wide-bore compresses in the time that wide-bore opens.
Compressible platycoria of the present utility model mechanism, compressible platycoria mechanism is also included in each periphery of opening macro ring stretch out setting, at least two block pieces for the edge card of iris is shared.
Compressible platycoria of the present utility model mechanism, block piece is annulus, and annulus is in opening macro ring institute planar, and the diameter of annulus is 0.5mm-1.5mm, and the diameter of the circumfili of annulus is 0.05mm-0.15mm.
Compressible platycoria of the present utility model mechanism, connector is at least two, the two ends of connector are separately positioned on adjacent two peripheries of opening macro ring.
Compressible platycoria of the present utility model mechanism, connector is identical with the quantity on limit of opening macro ring, and each connector is all arranged on out on the angle of macro ring.
Compressible platycoria of the present utility model mechanism, opens macro ring and comprises six limits, and every edge lengths equates.
Compressible platycoria of the present utility model mechanism, the maximum inner diameter of wide-bore is 5mm-9mm; The diameter of opening each limit of macro ring is 0.2mm-0.4mm; Connector length is 0.5mm-1.5mm, and linear diameter is 0.2mm-0.4mm.
Compressible platycoria of the present utility model mechanism, the quantity of opening macro ring is two.
Compressible platycoria of the present utility model mechanism, each opens macro ring is that a memory wire is bent to form continuously.
This utility model also provides a kind of injection-type platycoria device, comprises injector and compressible platycoria mechanism, and injector comprises cylinder-shaped body that one end is open and the piston of injecting in the other end setting of cylinder-shaped body; Open macro ring in the time of compressive state, be arranged in cylinder-shaped body, and release after cylinder-shaped body in opening large state by injecting piston.
Enforcement the beneficial effects of the utility model are: the macro ring of opening in compressible platycoria mechanism of the present utility model and note formula platycoria device has out large state and compressive state, can compress in advance postposition enters in pupil, open macro ring natural elasticity reply after in opening large state, pupil is opened greatly, can obtain satisfied platycoria effect, make effective surgical field of view large.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 drives the Facad structure schematic diagram of macro ring in the time opening large state in compressible platycoria mechanism in embodiment of this utility model;
Fig. 2 is the side structure schematic diagram of the mechanism of compressible platycoria shown in Fig. 1;
Fig. 3 drives the Facad structure schematic diagram of macro ring in the time of compressive state in the mechanism of compressible platycoria shown in Fig. 1;
Fig. 4 is the side structure schematic diagram of the mechanism of compressible platycoria shown in Fig. 3;
Fig. 5 is the Facad structure schematic diagram of injection-type platycoria device in embodiment of this utility model;
Fig. 6 is the side structure schematic diagram of the platycoria of injection-type shown in Fig. 5 device.
Detailed description of the invention
Understand for technical characterictic of the present utility model, object and effect being had more clearly, now contrast accompanying drawing and describe detailed description of the invention of the present utility model in detail.
Fig. 1 is to the compressible platycoria mechanism Figure 4 shows that in embodiment of this utility model, and it comprises out macro ring 10, connector 30 and block piece 50.
Wherein, the quantity of opening macro ring 10 is at least two, and at least two are opened that macro ring 10 is corresponding to be arranged side by side.Preferably, the quantity of opening macro ring 10 is two.Each macro ring 10 of opening comprises at least four edges 11, and at least four edges 11 surrounds a wide-bore 13, opens macro ring 10 and has open large state and the compressive state in the time that wide-bore 13 compresses in the time that wide-bore 13 opens.Preferably, open macro ring 10 and comprise six limits 11, every limit 11 is equal in length, opens macro ring 10 for regular hexagon.Understandably, regular hexagon is easy to occur deformation, to realize the compressible function of compressible platycoria mechanism in this utility model embodiment.Preferably, the maximum inner diameter of wide-bore 13 is 5mm-9mm; The diameter of opening each limit 11 of macro ring 10 is 0.2mm-0.4mm.Further, the maximum inner diameter of wide-bore 13 is 7mm; The diameter of opening each limit 11 of macro ring 10 is 0.3mm.Preferably, each to open macro ring 10 be that a memory wire is bent to form continuously.Further, limit 11 is bent to form continuously for memory wire.Understandably, memory wire has good elastic recovery function, is convenient to compression and can reduces the damage to its hetero-organization in operation process.Preferably, memory wire is titanium alloy wire.As selection, the limit 11 of opening macro ring 10 can be for removably connecting or other one connected mode mutually.
Connector 30 is connected to adjacent two and opens between macro ring 10.The quantity of connector 30 is at least two, and the two ends of connector are separately positioned on adjacent two peripheries of opening macro ring 10.Preferably, connector 30 is identical with the quantity on limit 11 of opening macro ring 10, and each connector 30 is all arranged on out on the angle of macro ring 10.Preferably, connector 30 length are 0.5mm-1.5mm, and linear diameter is 0.2mm-0.4mm.Further, connector 30 length are 1mm, and linear diameter is 0.3mm.
The quantity of block piece 50 is at least two.Preferably, block piece 50 is two, be separately positioned on each periphery of opening macro ring 10 stretch out setting, for the edge card of iris is shared to be deviate from.Preferably, block piece 50 is annulus, and in opening 10 of macro ring, planar the diameter of annulus is 0.5mm-1.5mm to annulus, and the diameter of the circumfili of annulus is 0.05mm-0.15mm.Understandably, block piece 50 is arranged to annular, can make compressible platycoria mechanism very round and smooth, and not other tissue of easy damaged, can avoid causing unnecessary complication.As selection, block piece 50 can be triangle, tetragon or irregularly shaped, as long as can realize, the edge card of iris is shared to the shape of not deviating from.Further, the residing position of block piece 50 is also not limited to and opens macro ring 10 in same plane, also can slightly slope inwardly, as long as can realize barrier functionality.
Be the injection-type platycoria device in embodiment of this utility model as shown in Figure 5 and Figure 6, comprise compressible platycoria mechanism and injector 200.Wherein, compressible platycoria mechanism is the compressible platycoria mechanism in above-described embodiment.Injector 200 comprises cylinder-shaped body 210 and injects piston 230.Cylinder-shaped body 210 one end are open, inject piston 230 and be arranged on the other end of cylinder-shaped body 210.In conjunction with shown in Fig. 1 to Fig. 4, due in compressible platycoria mechanism to open macro ring 10 compressible, therefore in the time opening macro ring 10 in compressive state, place it in cylinder-shaped body 210, and release after cylinder-shaped body 210 in opening large state by injecting piston 230.
Below in conjunction with Fig. 1 to Fig. 6, the use of the injection-type platycoria device in this utility model embodiment is described.
(A) operator wears mask, medicated cap etc., in advance the compressible platycoria mechanism having compressed is installed in injector 200, and carries out aseptic process;
(B) strict sterilization field of operation;
(C) open aseptic bag, put on sterile gloves, carry out cornea or corneosclera otch;
(D) separate iris and crystal adhesion part, make the iris can activity.
(E) with injection-type platycoria device, compressible platycoria mechanism is injected into ophthalmic anterior chamber, block iris with block piece 50, large pupil is opened in traction.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under this utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in several improvements and modifications that do not depart under this utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a compressible platycoria mechanism, it is characterized in that, comprise opening macro ring (10) and being connected to at least two and described in adjacent two, open the connector (30) between macro ring (10), described at least two, open corresponding being arranged side by side of macro ring (10), described in each, open macro ring (10) and comprise at least four edges (11), article at least four, described limit (11) surround a wide-bore (13), described in open macro ring (10) and have open large state and the compressive state in the time that described wide-bore (13) compresses in the time that described wide-bore (13) opens.
2. compressible platycoria according to claim 1 mechanism, it is characterized in that, described compressible platycoria mechanism is also included in the periphery of opening macro ring (10) described in each stretch out setting, at least two block pieces (50) for the edge card of iris is shared.
3. compressible platycoria according to claim 2 mechanism, it is characterized in that, described block piece (50) is annulus, described annulus is opened macro ring (10) institute planar in described, the diameter of described annulus is 0.5mm-1.5mm, and the diameter of the circumfili of described annulus is 0.05mm-0.15mm.
4. compressible platycoria according to claim 1 mechanism, is characterized in that, described connector (30) is at least two, and open on the periphery of macro ring (10) described in being separately positioned on adjacent two at the two ends of described connector (30).
5. compressible platycoria according to claim 4 mechanism, it is characterized in that, described connector (30) with described in to open the quantity on described limit (11) of macro ring (10) identical, and each described connector (30) is opened on the angle of macro ring (10) described in being all arranged on.
6. according to the compressible platycoria mechanism described in claim 1 to 5 any one, it is characterized in that, described in open macro ring (10) and comprise six described limits (11), every described limit (11) is equal in length.
7. compressible platycoria according to claim 6 mechanism, is characterized in that, the maximum inner diameter of described wide-bore (13) is 5mm-9mm; The diameter on described each described limit (11) of opening macro ring (10) is 0.2mm-0.4mm; Connector (30) length is 0.5mm-1.5mm, and linear diameter is 0.2 mm-0.4mm.
8. according to the compressible platycoria mechanism described in claim 1 to 5 any one, it is characterized in that, described in open macro ring (10) quantity be two.
9. according to the compressible platycoria mechanism described in claim 1 to 5 any one, it is characterized in that, opening macro ring (10) described in each is that a memory wire is bent to form continuously.
10. an injection-type platycoria device, it is characterized in that, comprise the compressible platycoria mechanism described in injector (200) and claim 1 to 9 any one, described injector (200) comprises cylinder-shaped body (210) that one end is open and injects piston (230) in the other end setting of described cylinder-shaped body (210); The described macro ring (10) of opening, in the time of compressive state, is arranged in described cylinder-shaped body (210), and is released after described cylinder-shaped body (210) in opening large state by the described piston (230) of injecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152203.8U CN203802656U (en) | 2014-03-31 | 2014-03-31 | Compressible pupil expanding mechanism and pushing and injecting type pupil expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152203.8U CN203802656U (en) | 2014-03-31 | 2014-03-31 | Compressible pupil expanding mechanism and pushing and injecting type pupil expanding device |
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| Publication Number | Publication Date |
|---|---|
| CN203802656U true CN203802656U (en) | 2014-09-03 |
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| CN201420152203.8U Expired - Fee Related CN203802656U (en) | 2014-03-31 | 2014-03-31 | Compressible pupil expanding mechanism and pushing and injecting type pupil expanding device |
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| CN (1) | CN203802656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109998613A (en) * | 2019-04-19 | 2019-07-12 | 郑州大学第一附属医院 | The iris extension fixture of corneal incision wound can be reduced |
-
2014
- 2014-03-31 CN CN201420152203.8U patent/CN203802656U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109998613A (en) * | 2019-04-19 | 2019-07-12 | 郑州大学第一附属医院 | The iris extension fixture of corneal incision wound can be reduced |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20150331 |
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| EXPY | Termination of patent right or utility model |