CN208823146U

CN208823146U - A kind of cataract nucleus crushing device

Info

Publication number: CN208823146U
Application number: CN201820576583.6U
Authority: CN
Inventors: 李芸; 赵元; 贾松柏; 陈百华; 何彦; 曹健
Original assignee: Second Xiangya Hospital of Central South University
Current assignee: Second Xiangya Hospital of Central South University
Priority date: 2018-04-23
Filing date: 2018-04-23
Publication date: 2019-05-07
Anticipated expiration: 2028-04-23

Abstract

A kind of cataract nucleus crushing device, the utility model includes casing, fixed pin and fragmentation nucleus net with shrink-ring, two different hollow cylinders of diameter are formed through casing, fixed pin is placed in casing, the tail end of fixed pin is in the larger diameter end of casing, and simultaneously equipped with head board, head board is used to that fixed pin is pushed to be moved forward and backward in casing fixed pin tail end stretching casing.Fixed pin top is located at the small until diameter end of casing, and fixed pin top is coated with fishnet shape fragmentation nucleus net, and fishnet shape fragmentation nucleus net is equipped with shrink-ring and fragmentation nucleus collection bag, and the control terminal of shrink-ring is located at the major diameter port of casing.The utility model can reduce the operative incision of extremely hard core cataract patient, shorten operating time and reduce the damage of ultrasonic energy, increase the range of choice of high-end artificial lens, so as to improve the prognosis of cataract extraction in sclerotic nucleus cataract patient.

Description

A kind of cataract nucleus crushing device

Technical field

The utility model relates to medical instrument more particularly to a kind of cataract nucleus crushing devices.

Background technique

Cataract is the big diseases causing blindness of current the first in the world at present, and currently the only effective treatment is operation.It is white in operation The processing of cataract or glaucoma crystal nuclear is key link.Small notch or micro-incision phacoemulsification are the art formulas of current mainstream, Its basic principle be with ultrasonic energy emulsification, fragmentation nucleus, by the core of crystal with lesser notch be sucked out eyeball, then implantable artificial crystalline substance Body.But for developing countries such as China, since surgical coverage is low, the opportunity of operation originals such as evening and high myopia incidence height partially Cause, stone Proportion of patients more than level Four are significantly higher.For such patient, high energy is needed as used in ultrasonic emulsification mode art Amount and long duration of action, the risk that cornea burns the complication such as wound, corneal endothelium decompensation, Poster capsulorhexis are significantly raised；For Extremely hard core, ultrasonic emulsification are extremely difficult.Therefore for such patient, current Normal practice be a 5-12mm it is not equal compared with Big notch gives birth to perfect crystal core or the pre- core block for being split into 2-4 block.Biggish operative incision not only increases the wound of art eye Wound, and the risk for occurring fulminant Suprachorodal hemorrhage in art increases, post-operation inflammatory, the risk of infection and art source property astigmatism Also it obviously increases.The advantage of the folded iol merging of clinic mainstream is also decreased obviously at present in this kind of patient, multifocal, function Energy property artificial lens is even more to select to be limited.As the requirement at present to quality of life improves, cataract operation is from operation of regaining one's sight Develop to refractive surgery, this requires us to solve the problems, such as the taking-up of stone with more minimally invasive, safer mode.

Utility model content

The purpose of this utility model is to provide a kind of cataract nucleus crushing devices, solve cutting greatly for the above cataract patient of level Four Mouth problem.

The utility model is realized in this way including casing, fixed pin and the fragmentation nucleus net with shrink-ring, two diameters are not Same hollow cylinder is formed through casing, and fixed pin is placed in casing, and the tail end of fixed pin is fixed in the larger diameter end of casing Backshank end stretches out casing and is equipped with head board, and head board is used to that fixed pin is pushed to be moved forward and backward in casing；Fixed pin top position In the small until diameter end of casing, fixed pin top is coated with fishnet shape fragmentation nucleus net, and fishnet shape fragmentation nucleus net is equipped with shrink-ring and fragmentation nucleus Net collection bag, the control terminal of shrink-ring are located at the major diameter port of casing.

The further technical solution of the utility model is: described sleeve pipe is plastic material, and the caliber of described sleeve pipe is 1.8mm-3mm。

The further technical solution of the utility model is: shrink-ring is metal or high molecular polymer material, the contraction Loop diameter is 0.03mm-0.5mm.

The further technical solution of the utility model is: the fragmentation nucleus net is that wire or high molecular polymer silk thread weave It forms, the fragmentation nucleus mesh screen hole density is between -200 mesh of 20 mesh.

The fragmentation nucleus net collection bag is located at the port of the larger diameter end of casing.

The utility model in use, operating procedure are as follows: capsulorhexis, childbirth core squeeze into viscoelastic before and after crystal nuclear to anterior chamber Capsule and endothelium after agent protection；Nucleus-crushing device casing is inserted into from the main notch of cataract operation；Fixed pin is released, core splitting device is auxiliary in opposite side Help it is lower will fixed pin be inserted into crystal nuclear in；The fragmentation nucleus net for having shrink-ring is released, crystal nuclear plane is adjusted using fixed pin, with splitting Core device drawing auxiliary shrink-ring catches crystal nuclear from back to front；Outside pull shrink-ring control terminal withdraws shrink-ring, tightens fragmentation nucleus Net utilizes the dissection fragmentation crystal nuclear of fine-structure mesh ruling；Core fragment and remaining cortex are pumped out, it is brilliant from main notch implantable artificial Body.

The beneficial effects of the utility model are: can be cut Reduction surgery in extremely hard core cataract patient using the present apparatus Mouth, the damage and postoperative complications shortened operating time, reduce ultrasonic energy, accelerate post-operative recovery, select high-end artificial lens A possibility that increase, so as to improve the prognosis of cataract extraction in sclerotic nucleus cataract patient.

Detailed description of the invention

Fig. 1 is the utility model cataract nucleus crushing device structural schematic diagram.

Specific embodiment

Fig. 1 shows a kind of cataract nucleus crushing device, and two different hollow cylinders of diameter are formed through casing 1, fixed Needle 4 is placed in casing 1, and in the larger diameter end of casing 1,4 tail end of fixed pin stretches out casing 1 and is equipped with to be released the tail end of fixed pin 4 Plate, head board are used to that fixed pin 4 is pushed to be moved forward and backward in casing 1.4 top of fixed pin is located at the small until diameter end of casing 1, Gu Determine 4 top of needle and be coated with fishnet shape fragmentation nucleus net 2, fishnet shape fragmentation nucleus net 2 is equipped with shrink-ring 3, and the control terminal 5 of shrink-ring 3 is located at set The major diameter port of pipe 1.

Described sleeve pipe is plastic material, and the caliber of described sleeve pipe is 1.8mm-3mm；Shrink-ring is metal material, the receipts Shrunk-on ring diameter is 0.03mm-0.5mm；The fragmentation nucleus net forms for metal wire knitted, and the fragmentation nucleus mesh screen hole density is 20 mesh- Between 200 mesh.

In use, the operating procedure of the utility model are as follows: 1. capsulorhexis, childbirth core to anterior chamber, crystal nuclear front and back are squeezed into Capsule and endothelium after viscoelastic agent protection；2. nucleus-crushing device casing is inserted into from the main notch of cataract operation；3. fixed pin is released, in core splitting device Auxiliary under will fixed pin be inserted into crystal nuclear in；4. releasing the fragmentation nucleus net for having shrink-ring, it is flat to adjust crystal nuclear using fixed pin Face pulls auxiliary shrink-ring with core splitting device and catches crystal nuclear from back to front；5. outside pull shrink-ring control terminal withdraws shrink-ring, Fragmentation nucleus net is tightened, the dissection fragmentation crystal nuclear of fine-structure mesh ruling is utilized；6. core fragment and remaining cortex are pumped out, from main notch Implantable artificial crystal.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims

1. a kind of cataract nucleus crushing device characterized by comprising casing, fixed pin and the fragmentation nucleus net with shrink-ring, two straight The different hollow cylinder of diameter is formed through casing, and fixed pin is placed in casing, the tail end of fixed pin casing larger diameter end, Fixed pin tail end stretches out casing and is equipped with head board, and head board is used to that fixed pin is pushed to be moved forward and backward in casing；Fixed pin top End is located at the small until diameter end of casing, and fixed pin top is coated with fishnet shape fragmentation nucleus net, fishnet shape fragmentation nucleus net be equipped with shrink-ring and Fragmentation nucleus collection bag, the control terminal of shrink-ring are located at the major diameter port of casing.

2. a kind of cataract nucleus crushing device according to claim 1, it is characterised in that: described sleeve pipe is plastic material, described The hollow outer diameter of casing is 1.8mm-3mm.

3. a kind of cataract nucleus crushing device according to claim 1, it is characterised in that: the shrink-ring of fragmentation nucleus net is metal or height Molecularly Imprinted Polymer material, the contraction loop diameter are 0.03mm-0.8mm.

4. a kind of cataract nucleus crushing device according to claim 1, it is characterised in that: the fragmentation nucleus net is wire or high score Sub- polymer woven forms, and the fragmentation nucleus mesh screen hole density is between -200 mesh of 20 mesh.

5. a kind of cataract nucleus crushing device according to claim 1, it is characterised in that: the fragmentation nucleus net collection bag is located at casing Larger diameter end port.