CN104970918A - Microforceps used for posterior curvilinear capsulorhexis of sclera microincision posterior cataract - Google Patents
Microforceps used for posterior curvilinear capsulorhexis of sclera microincision posterior cataract Download PDFInfo
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- CN104970918A CN104970918A CN201510445789.6A CN201510445789A CN104970918A CN 104970918 A CN104970918 A CN 104970918A CN 201510445789 A CN201510445789 A CN 201510445789A CN 104970918 A CN104970918 A CN 104970918A
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- microforceps
- sclera
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- capsulorhexis
- cataract
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Abstract
The present invention relates to microforceps used for posterior curvilinear capsulorhexis of sclera microincision posterior cataract. The present invention aims at providing the microforceps serving as a supporting tool of a new method for preventing and treating after-cataract, and the microforceps are especially suitable for combined application to cataract ultrasonic emulsification and vitreous retinal surgical patients. The microforceps serving as treatment means are suitable for treatment of refractory after-cataract which is relatively thick, difficult to treat by laser and formed after cataract surgery. The technical scheme is that the microforceps used for the posterior curvilinear capsulorhexis of the sclera microincision posterior cataract are characterized in that the microforceps are composed of a handle assembly, a sliding sleeve assembly, a forceps rod assembly and a forceps tip; the handle assembly comprises a forceps body and two pressing bars; the sliding sleeve assembly comprises a fixed sleeve and a sliding sleeve; the forceps rod assembly comprises a fixed bar and a movable bar; and the forceps tip comprises two clamping pieces.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of Lens capsular and to go in ring the microforceps of capsulorhexis.
Background technology
Merge cataractous complicated retinal detachment application modern day cataract ultrasonic emulsification and operation on vitreous therapeutic alliance is more ripe method.Nearly ten years, these two technology have been united and applied in the treatment of more oculopathy, and have occurred the apparatus such as Microphacoemulsification and Wicresoft's operation on vitreous that diameter is less, efficiency is higher, tissue reaction is lighter, in conjunction with intraocular lens
implant, patient can exempt Repeated Operation, and obtains vision.
Obtain good vision, cornea, aqueous humor, intraocular lens, Lens capsular-Anterior hyaloid membrane interface
andthe transparency of the refraction of eye media such as vitreous body is indispensable.Modern ophthalmologic operation can improve the transparency of patient's refraction of eye medium preferably.
Along with research go deep into, it is found that postoperative Posterior capsular opacification (PCO) and anterior vitreous retina proliferative lesion (A-PVR) be affect Postoperative visual acuity with
perform the operation intothe key factor of power.Due to the dissection particularity at " Lens capsular-Anterior hyaloid membrane interface ", be limited to the limitation of operation method and apparatus at present, unavoidably there is crystalline lens
onthe hypertrophy of dividing a word with a hyphen at the end of a line of chrotoplast, cause inverse position method; Or dispose clean and hyperplasia because of Anterior hyaloid membrane operation and divide a word with a hyphen at the end of a line, make anterior vitreous retina hypertrophy, cause this anatomical structure separately or merge stick together, hypertrophy and muddiness, the lighter affects one's power of vision, and severe one causes and recurs detachment of retina etc.Bibliographical information, the ratio of postcataract inverse position method can reach 33-50%, and the incidence rate of postoperative vitreous-body-retina proliferative lesion can reach 13%.Prior art and method there is no statement to the hypertrophy how processing Lens capsular-Anterior hyaloid membrane interface in operation, and this problem annoyings operative doctor.Therefore paying attention to the postoperative hypertrophy problem at " Lens capsular-Anterior hyaloid membrane interface ", and propose new approaches, the new route of dealing with problems, is the new concept improving success rate of operation further, conscientiously improve vision after corrective surgery.
The mode of prior art prevention and therapy postcataract inverse position method has following several: 1. chemoprophylaxis, suppresses intra-ocular lens epithelial proliferation, comprises the existing intraocular lens etc. containing heparin drug modification,
curative effect limited; Separately there is the intraocular lens device etc. that multiple different pharmaceutical is modified, at present
stillplace's conceptual phase there is no product; 2.
yAGvesiculectomy after laser, main method and remedial measure that postoperative inverse position method is treated, smashed by the Lens capsular of laser light explosion by muddiness, extraneous luminous energy is made to enter ophthalmic unimpededly, but the cyst membrane smashed remains in ophthalmic patient visual floating thing, especially original vitreous opacity person can aggravate muddiness
,the fragment produced easily causes again tunica uvea reaction and inflammation, blocking angle, room cause glaucoma and the complication such as detachment of retina occur, the event smashing intraocular lens is still had to occur, and this method is to forming inverse position method weak curative effect thicker comparatively for a long time, have impact on clinical development; 3. the continuous Lens capsular on premenstrual road removes technology (PCCC), this technology and of the present invention to remove technology through the continuous Lens capsular of the sclera micro-incision way of escape comparatively close, intraocular forceps is pleasing to the eye through corneal incision, clamping Lens capsular completes belt capsulorhexis, and its defect is: 1. Tweezers for eye surgery diameter is large, the large postoperative astigmatism of operative incision is large; 2. operation carries out from the inner face of posterior capsulotomy, capable the facing down of arc of the upper Lens capsular of Yin Shengli and being difficult to; 3. the circular Lens capsular capsulorhexis ring that formation one is good is difficult to, the stability of the intraocular lens that impact is implanted; 4. Prevention and treatment complication is often had to occur.So the continuous Lens capsular on premenstrual road removes technology clinical practice to be limited to very much, only selectivity is used for the treatment of pediatric cataract, most unsatisfactory curative effect.
The processing mode of prior art to Anterior hyaloid membrane interface is: in vitrectomy, Vitrea full excision and vitreous body is had to excise two large methods completely, modern operation on vitreous praises highly completed resected, and its advantage is to reduce postoperative vitreous body hypertrophy, improves success rate of operation.But after excision posterior vitreous only mentioned by existing document, available full skiascope or top pressure method excise the vitreous body around corpus ciliare, and do not provide effective Method and kit for the process of Anterior hyaloid membrane.
Summary of the invention
The object of the invention is to overcome the deficiency in above-mentioned background technology, a kind of microforceps is provided, as the kit of prevention and therapy inverse position method new method, be particularly suitable for being united and applied in cataract ultrasonic emulsification and vitrectomy patient; As treatment means, thicker, the laser that are formed after being applicable to cataract operation are difficult to the treatment of the intractable inverse position method proved effective.
The technical solution adopted in the present invention is:
A microforceps for capsulorhexis of going in ring for sclera micro-incision way of escape cataract Lens capsular, is characterized in that: described microforceps is made up of Handleset, slide bushing assembly, tweezer bar assembly and tweezer point;
Handleset comprises tweezer body and is arranged symmetrically in two depression bars of its both sides; Rear end and the tweezer body of two depression bars are connected as a single entity, the outward-dipping overhanging in front end;
Slide bushing assembly comprises the fixed cover being connected to tweezer body front end and the sliding sleeve inserting fixed cover endoporus; Tweezer body front end is shaped with the chute communicated with fixed cover endoporus, and the middle part of fixed cover offers two locating holes along same diameter; The leading portion of sliding sleeve offers endoporus vertically, and the back segment of sliding sleeve radially offers groove, has a positioning pipe to insert from one of them locating hole, through being positioned in another locating hole after groove; The rear end of sliding sleeve is connected with the front end of two depression bars respectively by two connecting rods;
Tweezer bar assembly comprises fixed bar and motion bar, fixed bar in a tubular form and rear end is fixed in the endoporus of sliding sleeve, the front end of fixed bar bends to arc, motion bar passes fixed bar by after forward direction, the rear end of motion bar is stretched into described groove and is fixed on positioning pipe, and the front end of motion bar has two bifurcated sections;
Tweezer point comprises two intermediate plates be separately fixed in two bifurcated sections, each intermediate plate shape all in obtuse angle, and one end and the bifurcated section of intermediate plate are connected as a single entity, and the other end bends towards the same side that fixed bar is bending.
As preferably, the diameter of described fixed bar is 0.7mm, and the distance of two intermediate plates from top to bottom is 0.7mm.
As preferably, the diameter of described fixed bar is 0.7mm, and the top of one of them intermediate plate is most advanced and sophisticated, and the most advanced and sophisticated distance to this intermediate plate bottom is 0.7mm, and the top of another intermediate plate and bottom are apart from being 0.5mm.
As preferably, the diameter of described fixed bar is 0.5mm, and the distance of two intermediate plates from top to bottom is 0.5mm.
As preferably, the diameter of described fixed bar is 0.5mm, and the top of one of them intermediate plate is most advanced and sophisticated, most advanced and sophisticated
arrivethe distance of this intermediate plate bottom is the top of 0.5mm, another intermediate plate
arrivebottom
'sdistance is 0.3mm.
As preferably, the middle part of described positioning pipe offers two fixing holes along same diameter, and the rear end of motion bar is through two fixing holes, and the two ends of positioning pipe are shaped with screw thread respectively, have two bolts to screw in from the two ends of positioning pipe respectively, the inner of two screw rods compresses the motion bar in positioning pipe.
As preferably, matsurface is all made in the inner side of described two intermediate plates.
As preferably, the front end of described fixed cover and sliding sleeve is taper surface.
The invention has the beneficial effects as follows: 1. tweezer point in obtuse angle
shape, intermediate plate length is identical with the diameter of fixed bar, is beneficial to and passes in and out ophthalmic by mini-incision, and the medial surface hacking of two intermediate plates becomes matsurface, is beneficial to the micro organizations such as clamping cyst membrane; The top of two intermediate plates can the top of concordant or one of them intermediate plate
forprotruding sharper keen tip, is beneficial to and captures cyst membrane after scratching Lens capsular simultaneously and complete belt capsulorhexis; Two kinds of structures are applicable to different conditions, flexible Application; 2. fixed cover becomes the conical surface with the equal reducing of sliding sleeve, avoids this place folder cyst membrane tissue by mistake; 3. the bar portion of microforceps adopts the design of arc rod-type, advantage one is arc bar and the same lateral bend of tweezer point, ophthalmic can be imported conveniently by sclera mouth, reach Lens capsular-Anterior hyaloid membrane rear interface and carry out operation technique, advantage two solves straight-bar type design to make the problem not reaching target interface of tweezers because of the stop of the dark nest, socket of the eye bone, the bridge of the nose etc. of eyeball, easily can tackle all kinds of situation; 4. the handle of Wicresoft's microforceps forms three compressed spring type structures by tweezer bar and two depression bars, makes it to act freely, meets ergonomic requirements;
From the curative effect of applicant in the clinical trial of many cases case, the present invention have modern design, rational in infrastructure, be easy to the features such as operation, obtain better achievement.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present invention.
Fig. 2 of the present inventionly looks up structural representation.
Fig. 3 is the cutaway view Amplified image of fixed cover and movable sleeve.
Fig. 4 is that the master of tweezer point looks enlarged diagram.
Fig. 5 be tweezer point look up enlarged diagram.
Fig. 6 is the enlarged diagram of the first tweezer point.
Fig. 7 is the enlarged diagram of the second tweezer point.
Fig. 8 is the cutaway view Amplified image of positioning pipe and motion bar.
Fig. 9 is working state schematic representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described, but the present invention is not limited to following examples.
As shown in Figure 1, 2, a kind of microforceps of capsulorhexis of going in ring for sclera micro-incision way of escape cataract Lens capsular, the Handleset made by medical stainless steel, slide bushing assembly, tweezer bar assembly and tweezer point 8 form.
Handleset comprises tweezer body 1 and is arranged symmetrically in two depression bars 2 of its both sides.Rear end and the tweezer body of two depression bars are connected as a single entity, the outward-dipping overhanging in front end thus have elasticity, can resilience after being pressed.For anti-sliding stop, the holding area 3 of depression bar and tweezer body can make matsurface, such as makes multiple striped or salient point or groove.
As shown in Figure 3, slide bushing assembly comprises fixed cover 6 and inserts the sliding sleeve 5 of fixed cover endoporus, and fixed cover and tweezer body front end are connected as a single entity.Tweezer body front end is shaped with the chute 10 communicated with fixed cover endoporus, and the middle part of fixed cover offers two locating holes along same diameter.The leading portion of sliding sleeve offers endoporus vertically, and the back segment of sliding sleeve radially offers groove 12, and groove is along the axial elongation of sliding sleeve.The endoporus of sliding sleeve is communicated with groove, has a positioning pipe 9 to insert from one of them locating hole, and through being positioned in another locating hole after groove, the diameter of positioning pipe and the width of groove adapt, thus avoid sliding sleeve to rock.The rear end of sliding sleeve is connected with the front end of two depression bars respectively by two connecting rods 4, and the connected mode of connecting rod and sliding sleeve and depression bar is hinged.The front end of described fixed cover and sliding sleeve gulps down mouthful process and forms taper surface 11.
As Fig. 3,4, shown in Fig. 5, tweezer bar assembly comprises fixed bar 7 and motion bar 13, in a tubular form and rear end is fixed in the endoporus of sliding sleeve, the front end of fixed bar bends to arc (degree of crook is determined as required) to fixed bar.As shown in Figure 8, the middle part of described positioning pipe offers two fixing holes along same diameter, motion bar by after forward direction through after fixed bar, two fixing holes are entered after described groove is stretched in the rear end of motion bar, the two ends of positioning pipe are shaped with screw thread respectively, have two bolts 15 to screw in from the two ends of positioning pipe respectively, the inner of two screw rods compresses the motion bar in positioning pipe.The front end of motion bar has two bifurcated section 13-1.
Tweezer point comprises two intermediate plates 14 be separately fixed in two bifurcated sections, each intermediate plate all bends to obtuse angle shape, one end and the bifurcated section of intermediate plate are connected as a single entity, the other end bends towards the same side that fixed bar is bending, for convenience of micro organizations such as clamping cyst membranes, matsurface (can process some teeth, salient point or striped) is all made in the inner side of two intermediate plates.
For adapting to different occasions, shown tweezer point has following two kinds of structures:
The first structure, as shown in Figure 6, two intermediate plates of tweezer point are mutually concordant, in this structure, two the distance As of intermediate plate from top to bottom, identical with the diameter of fixed bar, be 0.7mm or 0.5mm;
Second
kindstructure, as shown in Figure 7, top another intermediate plate relative of one of them intermediate plate of tweezer point protrudes the distance B of 0.2mm, and protruding parts is most advanced and sophisticated; In this structure, when the diameter of fixed bar is 0.7mm, most advanced and sophisticated
arrivethe distance of this intermediate plate bottom is the top of 0.7mm, another intermediate plate
arrivethe distance of bottom is 0.5mm; When the diameter of fixed bar is 0.5mm, most advanced and sophisticated
arrivethe distance of this intermediate plate bottom is the top of 0.5mm, another intermediate plate
arrivewith bottom
'sdistance is 0.3mm.
Operation principle of the present invention is: as shown in Figure 9, during use, with hand two depression bars, depression bar promotes sliding sleeve by connecting rod and moves forward, and fixed bar travels forward thereupon, forces two bifurcated sections to be closed up, the micro organizations such as two intermediate plate clamping cyst membranes, now can carry out capsulorhexis operation, unclamp depression bar afterwards, depression bar automatically resets, sliding sleeve pulls back by connecting rod, fixed bar leaves two bifurcated sections, and two intermediate plates open, and waits for next operation.
Key of the present invention applies this Wicresoft's microforceps in operation thoroughly to remove Optical Region Lens capsular and Anterior hyaloid membrane, makes crystalline lens 16
onchrotoplast and vitreous body proliferative cell greatly reduce, and this two classes proliferative cell can be adhered to nowhere, enter
andkeep the transparency of this Optical Region of art eye, improve vision.
After implanting intraocular lens and completing most of vitreous excision, by way of escape method, namely the sclera micro-incision (diameter 0.5-0.7mm) of vitreous excision is utilized, import microforceps provided by the invention, under conventional microscopy and fibre-optic cooperation, grab and pinch Anterior hyaloid membrane and be inwardly separated to pars plana, and excise and remove, expose posterior capsulotomy; And then first after Lens capsular central authorities scratch an osculum with this Wicresoft microforceps from the back side (way of escape), capture Lens capsular, be that the center of circle is made the belt capsulorhexis of a diameter 4-5mm and takes out it with central authorities, complete way of escape method continuous circular capsularrhexis, be simple and easy to use.The organization foundation of Lens capsular-postoperative hypertrophy in Anterior hyaloid membrane interface is thoroughly removed with this microforceps, the anterior chamber of eye vitreous-body-retina proliferative lesion entirely do not caused disposed by the generation and the vitreous body that relieve postoperative Optical Region inverse position method, farthest recover and keep the transparency of refracting media, improve success rate of operation.
Claims (9)
1. a microforceps for capsulorhexis of going in ring for sclera micro-incision way of escape cataract Lens capsular, is characterized in that: described microforceps is made up of Handleset, slide bushing assembly, tweezer bar assembly and tweezer point (8);
Handleset comprises tweezer body (1) and is arranged symmetrically in two depression bars (2) of its both sides; Rear end and the tweezer body of two depression bars are connected as a single entity, the outward-dipping overhanging in front end;
Slide bushing assembly comprises the fixed cover (6) being connected to tweezer body front end and the sliding sleeve (5) inserting fixed cover endoporus; Tweezer body front end is shaped with the chute (10) communicated with fixed cover endoporus, and the middle part of fixed cover offers two locating holes along same diameter; The leading portion of sliding sleeve offers endoporus vertically, and the back segment of sliding sleeve radially offers groove (12), has a positioning pipe (9) to insert from one of them locating hole, through being positioned in another locating hole after groove; The rear end of sliding sleeve is connected with the front end of two depression bars respectively by two connecting rods (4);
Tweezer bar assembly comprises fixed bar (7) and motion bar (13), fixed bar in a tubular form and rear end is fixed in the endoporus of sliding sleeve, the front end of fixed bar bends to arc, motion bar passes fixed bar by after forward direction, the rear end of motion bar is stretched into described groove and is fixed on positioning pipe, and the front end of motion bar has two bifurcated sections (13-1);
Tweezer point comprises two intermediate plates (14) be separately fixed in two bifurcated sections, each intermediate plate shape all in obtuse angle, and one end and the bifurcated section of intermediate plate are connected as a single entity, and the other end bends towards the same side that fixed bar is bending.
2. the microforceps of a kind of capsulorhexis of going in ring for sclera micro-incision way of escape cataract Lens capsular according to claim 1, it is characterized in that: the diameter of described fixed bar is 0.7mm, the distance of two intermediate plates from top to bottom is 0.7mm.
3. the microforceps of a kind of capsulorhexis of going in ring for sclera micro-incision way of escape cataract Lens capsular according to claim 1, it is characterized in that: the diameter of described fixed bar is 0.7mm, the top of one of them intermediate plate is most advanced and sophisticated, the distance of this intermediate plate bottom of distance between two tips is 0.7mm, and the top of another intermediate plate and bottom distance are 0.5mm.
4. the microforceps of a kind of capsulorhexis of going in ring for sclera micro-incision way of escape cataract Lens capsular according to claim 1, it is characterized in that: the diameter of described fixed bar is 0.5mm, the distance of two intermediate plates from top to bottom is 0.5mm.
5. the microforceps of a kind of capsulorhexis of going in ring for sclera micro-incision way of escape cataract Lens capsular according to claim 1, it is characterized in that: the diameter of described fixed bar is 0.5mm, the top of one of them intermediate plate is most advanced and sophisticated, the distance of this intermediate plate bottom of distance between two tips is 0.5mm, and the top of another intermediate plate and bottom distance are 0.3mm.
6. the microforceps of a kind of capsulorhexis of going in ring for sclera micro-incision way of escape cataract Lens capsular according to any one of Claims 1 to 5, it is characterized in that: the middle part of described positioning pipe offers two fixing holes along same diameter, the rear end of motion bar is through two fixing holes, the two ends of positioning pipe are shaped with screw thread respectively, have two bolts to screw in from the two ends of positioning pipe respectively, the inner of two screw rods compresses the motion bar in positioning pipe.
7. the microforceps of a kind of capsulorhexis of going in ring for sclera micro-incision way of escape cataract Lens capsular according to any one of Claims 1 to 5, is characterized in that: matsurface is all made in the inner side of described two intermediate plates.
8. the microforceps of a kind of capsulorhexis of going in ring for sclera micro-incision way of escape cataract Lens capsular according to claim 6, is characterized in that: matsurface is all made in the inner side of described two intermediate plates.
9. the microforceps of a kind of capsulorhexis of going in ring for sclera micro-incision way of escape cataract Lens capsular according to claim 8, is characterized in that: the front end of described fixed cover and sliding sleeve is taper surface (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510445789.6A CN104970918A (en) | 2015-07-27 | 2015-07-27 | Microforceps used for posterior curvilinear capsulorhexis of sclera microincision posterior cataract |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510445789.6A CN104970918A (en) | 2015-07-27 | 2015-07-27 | Microforceps used for posterior curvilinear capsulorhexis of sclera microincision posterior cataract |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107374818A (en) * | 2017-09-08 | 2017-11-24 | 中国医科大学附属第医院 | Cataract capsulorhexis irrigates tweezer |
| CN109481102A (en) * | 2018-12-19 | 2019-03-19 | 苏州碧利医疗科技有限公司 | Stapes device for posting |
| CN109771133A (en) * | 2019-03-07 | 2019-05-21 | 刘庆淮 | A kind of contact lens receiver applied to vitrectomy |
| CN111214325A (en) * | 2020-02-25 | 2020-06-02 | 项香凤 | Nondestructive internal limiting membrane forceps |
| CN113599070A (en) * | 2021-07-29 | 2021-11-05 | 深圳市眼科医院 | Capsule membrane scissors for cataract surgery |
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| CN107374818A (en) * | 2017-09-08 | 2017-11-24 | 中国医科大学附属第医院 | Cataract capsulorhexis irrigates tweezer |
| CN107374818B (en) * | 2017-09-08 | 2023-06-23 | 中国医科大学附属第一医院 | Cataract capsulorhexis perfusion forceps |
| CN109481102A (en) * | 2018-12-19 | 2019-03-19 | 苏州碧利医疗科技有限公司 | Stapes device for posting |
| CN109771133A (en) * | 2019-03-07 | 2019-05-21 | 刘庆淮 | A kind of contact lens receiver applied to vitrectomy |
| CN111214325A (en) * | 2020-02-25 | 2020-06-02 | 项香凤 | Nondestructive internal limiting membrane forceps |
| CN113599070A (en) * | 2021-07-29 | 2021-11-05 | 深圳市眼科医院 | Capsule membrane scissors for cataract surgery |
| CN113599070B (en) * | 2021-07-29 | 2023-12-15 | 深圳市眼科医院 | Capsular scissors for cataract surgery |
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