CN101073523B - Cataract cystotome - Google Patents
Cataract cystotome Download PDFInfo
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- CN101073523B CN101073523B CN2007100150545A CN200710015054A CN101073523B CN 101073523 B CN101073523 B CN 101073523B CN 2007100150545 A CN2007100150545 A CN 2007100150545A CN 200710015054 A CN200710015054 A CN 200710015054A CN 101073523 B CN101073523 B CN 101073523B
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- stalk
- pin
- capsule
- cataract
- knife
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Abstract
The invention is concerned with the new cataract cystotome that can solve the shortage of the lens front capsule systotome during the excisting cataract operation, consists of tool bit, needle peduncle, and needle plug. It is: the end part connects with the front end of the needle peduncle, other end of the needle peduncle fixes with the needle plug. The invention can increase the mission success rate of operation, reduces the probability of contagious, and short the time of operation.
Description
One, technical field:
The present invention relates to a kind of cataract cystotome, belong to medical apparatus and instruments articles for use technical field.
Two, background technology:
Cut capsule and be the important step in the modern day cataract enucleation, success to cut a capsule be the key of whole surgery success, also usually be the step that the abecedarian feels the most difficult operation.Crystalline lens is a biconvex hyaline tissue.Its back is big than the convexity of front, and its diameter is the 9-10 millimeter, and anteroposterior diameter is the 4.5-5 millimeter.Between iris and vitreous body, rely on apparatus suspensorius lentis to be fixed on the corpus ciliare.The anterior lens capsule film is layer of transparent and whippy basement membrane; Back cyst membrane is the epithelial product of embryo.Under normal circumstances, the variable thickness at each position of crystalline peplos, the anterior capsule thickness is about 3 millimeters apart from preceding utmost point central part, then the cyst membrane thickness is apart from about 4 millimeters of back utmost point centre, usually the utmost point is all thinner before and after, and then the more preceding utmost point of the utmost point is thinner, and thinnest part has only 2 microns, the thickness can reach 20 microns, is very easy to break during overstrain outside being subjected to a slight machinery.Phacocyst is thickening along with the increase at age, but when suffering from senile cataract, anterior lens capsule has attenuation or degeneration in various degree.The thickness of the cataract cyst membrane of heterogeneity different phase and toughness are also inequality in addition, and congenital cataract and young and middle-aged concurrent cataractous cyst membrane toughness are bigger, and overdone cataractous cyst membrane is then thinner, also can break naturally once in a while.Anyly act on lenticular external force and all can make phacometachoresis, the anterior lens Suspensory ligament that radially distributes can produce radial tension force on the anterior capsule surface.In this case, the folliculus film lobe of incision just can extend to the ambitus; Extend to lenticular periphery always.Because the cyst membrane of this part is thinner, may compare difficulty if make the cyst membrane lobe be returned to central authorities.In fact breach has reached the place of adhering to of ligament.This moment, breach also inevitably reached the ambitus.The capsule otch that cuts of success should be about 6 millimeters of diameter, the circle of neat in edge, and the capsule band that form this moment is big than the capsule band tension stress of other otch.
The instrument that cuts capsule at present has discission needle head, Tweezers for eye surgery and cuts capsule pincers and Nd:YAG laser or electric cautery, but all has weak point separately.
1 discission needle head: though draw materials conveniently, make simple, but the crooked formed shape that colludes of front end needle point can not form and the consistent blade of the pin stalk longitudinal axis, but form and two perpendicular blades of pin stalk y direction, the shearing force of Xing Chenging is wayward like this, and form by the transformation of the way of disposable syringe syringe needle, random big, increased the risk that section capsule is failed.Be used to out pot type more and cut the capsule art, and the capsule otch is irregular before formed, the poor stability of capsule bag easily splits to periphery is radial.
2 Tweezers for eye surgery and section capsule pincers: the former just enters the anterior chamber and tears capsule after need cutting a leg-of-mutton preceding capsule valve with sharp weapon; The latter punctures the back as shears with preceding capsule and then just can tear capsule because its tip of clamping preceding capsule is a profit, and this as can be seen apparatus is actual to be two operating procedures, punctures preceding capsule earlier, and then catches the anterior capsule lobe to tear.This apparatus is used for continuous annular more and tears the capsule technology, and the purpose that continuous annular tears capsule is to form the excision mouth of a neat in edge, and capsule bag stable height helps operation in the lens capsule bag.But require the technology height, hands, eye, foot close fit just can be finished, and tear the capsule turning in the orientation of close otch and have any problem, Tweezers for eye surgery is bigger, can cause the blind area to operator, increased the probability of tearing the capsule failure, especially the cataract of overripe stage, anterior capsule is more crisp, is difficult for when tearing capsule picking up, easily split to periphery is radial, increase the operative failure rate.
3Nd:YAG laser cuts before capsule and the galvanocautery capsule and sections and all need special apparatus, and is loaded down with trivial details, also increased patient's expense.
Three, summary of the invention
The present invention is directed to the unhandy deficiency of anterior lens capsule cutting cystoma device tool in the present cataract operation, a kind of cataract cystotome that can improve success rate of operation easy to use, with low cost is provided.
A kind of cataract cystotome is made up of cutter head, pin stalk and pintle; The rearward end of cutter head links to each other with the front end of pin stalk, and the other end of pin stalk is fixedlyed connected with pintle.
Described cutter head is provided with point of a knife and cutter hub, and cutter hub obstructs into 90～135 degree angles with pin, and point of a knife is to pin stalk lateral bending song.
Described point of a knife, cutter hub obstructs a side to pin that blade is arranged.
Stalk and back stalk before described pin stalk is provided with, preceding stalk is 120～135 degree with the angle of back stalk, preceding stalk outer surface has scale.
There is hollow pipe described pin stalk inside, and the hollow pipe diameter is 0.01～0.05mm.
The preceding stalk length of described pin stalk is 6mm.
Using method of the present invention is: after scleral tunnel is finished in the cataract operation, puncture the anterior chamber with the triangle stab knife, inject viscoelastic agent, this cystotome is fixed on the nipple of syringe by pintle and makes cutter head enter the anterior chamber, the diameter that capsule sections mouthful before measuring is 6mm for the length of obstructing before the pin stalk just, thrust preceding capsule to cut to 6 positions clockwise and counterclockwise from 12 positions, the butt joint of two semicircles, multiple spot separated form water, water stratification are then stirred nucleus lentis and are made its perk and rotate in the capsule bag.Enter next operating procedure then.
The invention has the beneficial effects as follows:
1, the falciform cutter head among the present invention can conveniently be severed anterior capsule, and otch is smooth, and the good stability of capsule bag can not split to periphery is radial, can increase the success rate of operation.
2, the preceding stalk length of pin stalk is operation optimal aperture diameter among the present invention, makes the size of doctor's easier assurance surgical wound surface in operation.
3, the present invention combines cutting capsule and injecting two required utensils of step in the cataract operation, can effectively reduce the number of times that operating theater instruments enters the anterior chamber, carries disease germs and causes the probability of wound infection thereby reduced apparatus.
4, the present invention combines cutting capsule and injecting two required utensils of step in the cataract operation, has saved the inconvenience that frequent changer tool is brought in the operation, has shortened operating time.
5, the present invention is easy and simple to handle, low production cost, cost performance height.
Four, description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of cutter head.
Wherein: 1, cutter head, 2, pin stalk, 3, pintle, 4, point of a knife, 5, cutter hub, 6, blade, 7, preceding stalk, 8, the back stalk, 9, hollow pipe.
Illustrate below in conjunction with Figure of description 1, but the present invention's scope required for protection is not limited only to this.
Five, the specific embodiment
The present invention is a kind of cataract cystotome, is made up of cutter head 1, pin stalk 2 and pintle 3; The rearward end of cutter head 1 links to each other with the front end of pin stalk 2, and the other end of pin stalk 2 is fixedlyed connected with pintle 3; Described cutter head 1 is provided with point of a knife 4 and cutter hub 5,2 one-tenth 120 degree of cutter hub 5 and pin stalk angle, and point of a knife 4 obstructs 2 lateral bending songs to pin; Described point of a knife 4, cutter hub 5 obstructs 2 one sides to pin that blade 6 is arranged; Stalk 7 and back stalk 8 before described pin stalk 2 is provided with, preceding stalk 7 is 120 degree with the angle of back stalk 8, preceding stalk 7 outer surfaces have scale; Described pin obstructs 2 inside hollow pipe 9, and hollow pipe 9 diameters are 0.05mm; Preceding stalk 7 length of described pin stalk 2 are 6mm, and back stalk 8 length are 10mm.
Embodiment 2
The present invention is a kind of cataract cystotome, is made up of cutter head 1, pin stalk 2 and pintle 3; The rearward end of cutter head 1 links to each other with the front end of pin stalk 2, and the other end of pin stalk 2 is fixedlyed connected with pintle 3; Described cutter head 1 is provided with point of a knife 4 and cutter hub 5,2 one-tenth 90 degree of cutter hub 5 and pin stalk angle, and point of a knife 4 obstructs 2 lateral bending songs to pin; Described point of a knife 4, cutter hub 5 obstructs 2 one sides to pin that blade 6 is arranged; Stalk 7 and back stalk 8 before described pin stalk 2 is provided with, preceding stalk 7 is 135 degree with the angle of back stalk 8, preceding stalk 7 outer surfaces have scale; Described pin obstructs 2 inside hollow pipe 9, and hollow pipe 9 diameters are 0.01mm; Preceding stalk 7 length of described pin stalk 2 are 6mm, and back stalk 8 length are 10mm.
The present invention is a kind of cataract cystotome, is made up of cutter head 1, pin stalk 2 and pintle 3; The rearward end of cutter head 1 links to each other with the front end of pin stalk 2, and the other end of pin stalk 2 is fixedlyed connected with pintle 3; Described cutter head 1 is provided with point of a knife 4 and cutter hub 5,2 one-tenth 110 degree of cutter hub 5 and pin stalk angle, and point of a knife 4 obstructs 2 lateral bending songs to pin; Described point of a knife 4, cutter hub 5 obstructs 2 one sides to pin that blade 6 is arranged; Stalk 7 and back stalk 8 before described pin stalk 2 is provided with, preceding stalk 7 is 130 degree with the angle of back stalk 8, preceding stalk 7 outer surfaces have scale; Described pin obstructs 2 inside hollow pipe 9, and hollow pipe 9 diameters are 0.04mm; Preceding stalk 7 length of described pin stalk 2 are 6mm, and back stalk 8 length are 10mm.
Claims (1)
1. a cataract cystotome is characterized in that, is made up of pin stalk and pintle, also includes cutter head, and the rearward end of cutter head links to each other with the front end of pin stalk, and the other end of pin stalk is fixedlyed connected with pintle; Described cutter head is provided with point of a knife and cutter hub, and cutter hub obstructs into 90～135 degree angles with pin, and point of a knife is to pin stalk lateral bending song; Described point of a knife, cutter hub obstructs a side to pin that blade is arranged; Stalk and back stalk before described pin stalk is provided with, preceding stalk is 120～135 degree with the angle of back stalk, preceding stalk outer surface has scale; There is hollow pipe described pin stalk inside, and the hollow pipe diameter is 0.01～0.05mm; The preceding stalk length of described pin stalk is 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100150545A CN101073523B (en) | 2007-06-22 | 2007-06-22 | Cataract cystotome |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100150545A CN101073523B (en) | 2007-06-22 | 2007-06-22 | Cataract cystotome |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101073523A CN101073523A (en) | 2007-11-21 |
| CN101073523B true CN101073523B (en) | 2010-07-07 |
Family
ID=38974907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100150545A Expired - Fee Related CN101073523B (en) | 2007-06-22 | 2007-06-22 | Cataract cystotome |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101073523B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393628A (en) * | 2018-04-24 | 2019-11-01 | 胡蓉蓉 | The trans- scissor core splitting knife of cataract operation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228339Y (en) * | 1994-12-30 | 1996-06-05 | 鞠援 | Multi-function cataract cyst cutting and tearing device |
| CN2235794Y (en) * | 1995-04-12 | 1996-09-25 | 王文战 | Small-incision electric cyst-cutting nucleus-crushing device for treatment of catarct |
| CN2257183Y (en) * | 1996-07-23 | 1997-07-02 | 余开全 | Ring Knife for intracapsular extraction of cataract |
| CN2333381Y (en) * | 1998-06-16 | 1999-08-18 | 肖长顺 | Capsula knife for cataract operation |
| CN201055466Y (en) * | 2007-06-22 | 2008-05-07 | 山东大学 | Novel cataract capsulectomy knife |
-
2007
- 2007-06-22 CN CN2007100150545A patent/CN101073523B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228339Y (en) * | 1994-12-30 | 1996-06-05 | 鞠援 | Multi-function cataract cyst cutting and tearing device |
| CN2235794Y (en) * | 1995-04-12 | 1996-09-25 | 王文战 | Small-incision electric cyst-cutting nucleus-crushing device for treatment of catarct |
| CN2257183Y (en) * | 1996-07-23 | 1997-07-02 | 余开全 | Ring Knife for intracapsular extraction of cataract |
| CN2333381Y (en) * | 1998-06-16 | 1999-08-18 | 肖长顺 | Capsula knife for cataract operation |
| CN201055466Y (en) * | 2007-06-22 | 2008-05-07 | 山东大学 | Novel cataract capsulectomy knife |
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| Publication number | Publication date |
|---|---|
| CN101073523A (en) | 2007-11-21 |
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Granted publication date: 20100707 Termination date: 20130622 |