CN2820145Y - Nucleus split knife for micro incision cataract operation - Google Patents
Nucleus split knife for micro incision cataract operation Download PDFInfo
- Publication number
- CN2820145Y CN2820145Y CN 200520051465 CN200520051465U CN2820145Y CN 2820145 Y CN2820145 Y CN 2820145Y CN 200520051465 CN200520051465 CN 200520051465 CN 200520051465 U CN200520051465 U CN 200520051465U CN 2820145 Y CN2820145 Y CN 2820145Y
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- edge bearing
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Abstract
The utility model discloses a nucleus split knife for a micro incision cataract operation, which relates to the field of a medical appliance. The utility model comprises a handle 1, a knife rod 2, a knife arm 3 and a crescent-shaped knife body 6 which is composed of an upper part knife cushion 4 and a lower part knife cushion 8 of a smooth blend curved surface, a knife edge 5 and a knife back 7. The utility model has the characteristics of small volume, simple and quick operation, convenient use, safety, reliability, easy control, small operation incision, etc. The utility model is an ideal nucleus split knife for the cataract operation.
Description
Technical field
This utility model relates to medical instruments field, the knife for nucleus cutting that particularly a kind of miniature incision cataract operation is used.
Background technology
At present, the treatment cataract mainly contains ultrasonic emulsification and absorbs three kinds of methods such as art, big otch enucleation and nucleus chopping technique, and the equipment investment that ultrasonic emulsification is absorbed art is big, surgery cost is high and may damage corneal endothelium and influence the recovery of Postoperative visual acuity; The otch of big otch enucleation is bigger, and the safety of operation is relatively poor, and the recovery of Postoperative visual acuity is also not ideal; Nucleus chopping technique is to utilize knife for nucleus cutting that nucleus is split broken taking-up, its otch is less, but because operation is to operate in the anterior chamber, risk factor increases, and existing knife for nucleus cutting is mostly sharply tiny, no matter is which part of blade, will damage anterior capsule and back cyst membrane unless you give your whole attention to it, thereby the operation easier of operation is bigger, and safety is also lower.
The utility model content
At the deficiency of the said goods, technical problem to be solved in the utility model provides that a kind of volume is little, operation technique is simple, quick, easy to use, safe and reliable, easily grasp and knife for nucleus cutting that the small operative treatment cataract of operative incision is used.
For solving the problems of the technologies described above, technical solution adopted in the utility model is the knife for nucleus cutting that a kind of miniature incision cataract operation of design is used: comprise handle 1, knife bar 2, tool arm 3 and blade 6, handle 1, knife bar 2, tool arm 3 and blade 6 are connected successively; The blade 6 of crescent shape is made of the curved top edge bearing 4 and the bottom edge bearing 8 of the edge of a knife 5, the knife back 7, rounding off, and tool arm 3 is connected with bottom edge bearing 8.
Angle a between knife bar 2 and the tool arm 3 is in 90 ° of-180 ° of scopes.
Angle a between knife bar 2 and the tool arm 3 is 180 °.
The optimum of angle a between knife bar 2 and the tool arm 3 is 150 °.
The knife for nucleus cutting that miniature incision cataract operation of the present utility model is used, its edge of a knife is crescent shape and the curved upper and lower part edge bearing of having set up rounding off at the position up and down of its blade, thereby in operation process, because the protection of the blunt upper and lower part edge bearing of circle is arranged, even a little a bit collision, can not damage anterior capsule and back cyst membrane yet, thus when operation safety, reliable; Simultaneously,, adopt horizontal direction firmly,, grasp easily so operation technique is fairly simple, convenient, fast owing to be to split nuclear in position.In addition, because the volume of knife for nucleus cutting of the present utility model designs more tinyly, so the otch of operation can be less than 3.2 millimeters.
Description of drawings
Accompanying drawing 1 is the front view of blade of the present utility model when being hilted broadsword;
Accompanying drawing 2 is blade of the present utility model vertical views when being hilted broadsword;
Accompanying drawing 3 is that blade of the present utility model is hilted broadsword, the front view when angle a is 180 °;
Accompanying drawing 4 is that blade of the present utility model is hilted broadsword, the vertical view when angle a is 180 °;
Accompanying drawing 5 is blade of the present utility model front views when being double-pole;
Accompanying drawing 6 is that blade of the present utility model is double-pole, the front view when angle a is 180 °;
Accompanying drawing 7 is that blade of the present utility model is double-pole, the vertical view when angle a is 180 °;
Accompanying drawing 8 is that blade of the present utility model is the bending of the double-pole edge of a knife, the front view when angle a is 180 °;
Accompanying drawing 9 is that blade of the present utility model is the bending of the double-pole edge of a knife, the vertical view when angle a is 180 °;
Accompanying drawing 10 is A partial enlarged drawings of the present utility model;
Accompanying drawing 11 is that S of the present utility model is to enlarged drawing;
Accompanying drawing 12 is B partial enlarged drawings of the present utility model;
Accompanying drawing 13 is that K of the present utility model is to enlarged drawing;
Accompanying drawing 14 is that P of the present utility model is to enlarged drawing;
Accompanying drawing 15 is C partial enlarged drawings of the present utility model;
Accompanying drawing 16 is D partial enlarged drawings of the present utility model;
Accompanying drawing 17 is the front views with the matching used auxiliary edge bearing of this utility model;
Accompanying drawing 18 is that J with the matching used auxiliary edge bearing of this utility model is to enlarged drawing.
The specific embodiment
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail.
Embodiment one:
Present embodiment comprises handle 1, knife bar 2, tool arm 3 and the blade 6 of the crescent shape that is made of the curved top edge bearing 4 and the bottom edge bearing 8 of the edge of a knife 5, the knife back 7, rounding off.Handle 1 is circular pin (also can be elliptical rod), and its left end is a round platform, dwindles gradually, joins with knife bar 2; Knife bar 2 intersects with tool arm 3 and joins, and its angle a is 150 ° at this; The cross section of blade 6 is very little fan-shaped of angle, and the edge of a knife 5 is the intersection of its two folders face, and the intersection point of two clamps and its camber line is the rounding off shape, the formation knife back 7; Top edge bearing 4 and bottom edge bearing 8 are ball curved surface shape, with the edge of a knife 5 and the knife back 7 rounding ofves; Bottom edge bearing 8 joins with tool arm 3.
When knife for nucleus cutting of the present utility model uses, must match with auxiliary edge bearing.Auxiliary edge bearing is made of the edge bearing handle 9 that is connected successively, edge bearing bar 10, edge bearing pole 11, edge bearing cross bar 12 and edge bearing plate 13, and edge bearing plate 13 is the curved slab of crescent shape.
During use, blade 6 is balanced, slip into the anterior chamber and enter in the cortex between anterior lens capsule film and the nucleus lentis, rotate again and allow its top edge bearing 4 go to its underpart by otch, make blade 6 in vertical state, at this moment, use the edge bearing plate 13 of the auxiliary edge bearing that is slipped into by another otch to block nucleus lentis, horizontal direction drags handle 1, can carry out original position and split nuclear, with the nucleus lentis cleave in two, repeat repeatedly nucleus to be split into the less fragment of size, get final product with the Kernel taking device taking-up.Because the gauge of the curved top of the ball edge bearing 4 of the edge of a knife 5 top rounding ofves is far longer than the cross section of blade 6, thereby when slipping into the anterior chamber and enter in the cortex between anterior lens capsule film and the nucleus lentis, both can avoid near the tissue of the edge of a knife 5 damage otch, also can avoid other position damage anterior capsule and capsule bag ambitus of blade 6.Owing to be to split nuclear in position, edge bearing is relatively round more blunt up and down for it, and adopts horizontal direction to exert oneself, thereby can not damage anterior capsule and back cyst membrane.
Because the maximum ga(u)ge size of blade 6 is that the maximum ga(u)ge size of top edge bearing 4 or bottom edge bearing 8 is less, design is in 3 millimeters, so operative incision can be controlled at below 3.2 millimeters.
Embodiment two:
Present embodiment and embodiment one are basic identical, and knife bar 2 and tool arm 3 intersect the angle a that joins and be 180 ° at this, and be linearly.
Embodiment three:
Present embodiment comprises handle 1, knife bar 2, tool arm 3 and blade 6, and handle 1, knife bar 2, tool arm 3 and embodiment one are basic identical.Blade 6 comprises symmetrical two blades, and its top edge bearing 4 and bottom edge bearing 8 join together respectively and form new upper and lower part edge bearing, and constitutes the knife block of a sealing.Tool arm 3 and bottom edge bearing 8 join.
During use, must match with auxiliary edge bearing equally.Blade 6 is balanced, slip into the anterior chamber and enter in the cortex between anterior lens capsule film and the nucleus lentis, rotate again and allow its top edge bearing 4 go to its underpart by otch, make blade 6 in vertical state, at this moment, use the edge bearing plate 13 of the auxiliary edge bearing that slips into by another otch to block nucleus lentis, drag handle 1, can carry out original position and split nuclear, disposablely just nucleus can be split into three, take out with Kernel taking device and get final product, can shorten operating time, alleviate patient's misery, help the recovery of Postoperative visual acuity.
Equally, since the maximum ga(u)ge size of blade 6 in 3 millimeters, so operative incision can be controlled at below 3 millimeters.
Embodiment four: present embodiment and embodiment three are basic identical, just the edge of a knife 5 of two blades of blade 6 is the bracket shape, its upper and lower part difference is slight curvature relatively, top edge bearing 4 and bottom edge bearing 8 join together equally respectively and form new upper and lower part edge bearing, and constitute the knife block of a sealing.
It uses with embodiment three basic identical, because the edge of a knife 5 of these two blades is the bracket shape, thereby in moving into the anterior chamber time, the edge of a knife can not damage near tissue and anterior capsule and the capsule bag ambitus the otch.
Equally, since the maximum ga(u)ge size of blade 6 in 3 millimeters, so operative incision can be controlled at below 3.2 millimeters.
Claims (6)
1, the knife for nucleus cutting used of a kind of miniature incision cataract operation comprises handle (1), knife bar (2), tool arm (3) and blade (6), and handle (1), knife bar (2), tool arm (3) and blade (6) are connected successively; It is characterized in that: the blade of crescent shape (6) is made of the curved top edge bearing (4) and the bottom edge bearing (8) of the edge of a knife (5), the knife back (7), rounding off, and tool arm (3) is connected with bottom edge bearing (8).
2, the knife for nucleus cutting used of miniature incision cataract operation according to claim 1, it is characterized in that: blade (6) comprises symmetrical two blades, the top edge bearing (4) and the bottom edge bearing (8) of two blades join together respectively.
3, the knife for nucleus cutting used of miniature incision cataract operation according to claim 1, it is characterized in that: blade (6) comprises symmetrical two blades, the upper and lower part difference of the edge of a knife of its two blades (5) is slight curvature relatively, and its top edge bearing (4) and bottom edge bearing (8) join together respectively.
4, the knife for nucleus cutting of using according to claim 1 or 2 or 3 described miniature incision cataract operations, it is characterized in that: the angle a between knife bar (2) and the tool arm (3) is in 90 ° of-180 ° of scopes.
5, the knife for nucleus cutting used of miniature incision cataract operation according to claim 4, it is characterized in that: the angle a between knife bar (2) and the tool arm (3) is 180 °.
6, the knife for nucleus cutting used of miniature incision cataract operation according to claim 4, it is characterized in that: the angle a between knife bar (2) and the tool arm (3) is 150 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520051465 CN2820145Y (en) | 2005-07-21 | 2005-07-21 | Nucleus split knife for micro incision cataract operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520051465 CN2820145Y (en) | 2005-07-21 | 2005-07-21 | Nucleus split knife for micro incision cataract operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2820145Y true CN2820145Y (en) | 2006-09-27 |
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ID=37016694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520051465 Expired - Fee Related CN2820145Y (en) | 2005-07-21 | 2005-07-21 | Nucleus split knife for micro incision cataract operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2820145Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586567A (en) * | 2015-02-13 | 2015-05-06 | 苏州贝尔一锋医疗器械有限公司 | Adjusting rod for ophthalmologic operation |
| CN104873324A (en) * | 2015-06-09 | 2015-09-02 | 首都医科大学附属北京同仁医院 | Reverse chopping hook for cataract surgery |
| CN110573118A (en) * | 2017-02-16 | 2019-12-13 | 新医疗公司 | Devices, systems, and methods for minimally invasive glaucoma surgery |
| CN112618011A (en) * | 2020-12-19 | 2021-04-09 | 四川大学华西第四医院 | Radio frequency electric wave sword convenient to it is handheld |
-
2005
- 2005-07-21 CN CN 200520051465 patent/CN2820145Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586567A (en) * | 2015-02-13 | 2015-05-06 | 苏州贝尔一锋医疗器械有限公司 | Adjusting rod for ophthalmologic operation |
| CN104873324A (en) * | 2015-06-09 | 2015-09-02 | 首都医科大学附属北京同仁医院 | Reverse chopping hook for cataract surgery |
| CN110573118A (en) * | 2017-02-16 | 2019-12-13 | 新医疗公司 | Devices, systems, and methods for minimally invasive glaucoma surgery |
| CN110573118B (en) * | 2017-02-16 | 2023-06-27 | 显微外科技术公司 | Devices, systems, and methods for minimally invasive glaucoma surgery |
| CN112618011A (en) * | 2020-12-19 | 2021-04-09 | 四川大学华西第四医院 | Radio frequency electric wave sword convenient to it is handheld |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |