CN202665790U - Annular continuous scalpel for removing anterior lens capsule - Google Patents
Annular continuous scalpel for removing anterior lens capsule Download PDFInfo
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- CN202665790U CN202665790U CN 201220337676 CN201220337676U CN202665790U CN 202665790 U CN202665790 U CN 202665790U CN 201220337676 CN201220337676 CN 201220337676 CN 201220337676 U CN201220337676 U CN 201220337676U CN 202665790 U CN202665790 U CN 202665790U
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Abstract
The utility model discloses an annular continuous scalpel for removing anterior lens capsule. The annular continuous scalpel is characterized by comprising a hollow scalpel handle, wherein the front end of the scalpel handle is provided with a section of scalpel head which is inclined outwards; a memory alloy strip which can extend out of the scalpel head to form a circular rail is collected in the scalpel head; one end of the memory alloy strip is fixedly connected to the middle outer side of the scalpel head opening; after being bent, the memory alloy strip extends to the rear end of the scalpel handle from the middle inner side of the scalpel head opening; a sliding cutter with a cutting edge is sleeved on the bending part; two sections of a stretching wire are connected to the sliding cutter, one section of the stretching wire is wound on a retractable pulley which is fixedly connected to the middle outer side of the scalpel head opening, and the other section of the stretching wire extends to the rear end of the scalpel handle in a groove on the outer side of the memory alloy strip; when the memory alloy strip collected in the scalpel head extends out of the scalpel head opening to form the circular rail, the sliding cutter sleeved on the memory alloy strip is just positioned on the outer side of the scalpel head opening, the stretching wire is pulled back or rewound from the rear end of the scalpel handle, namely the sliding cutter can be driven to make continuous and stable circular motion from the outer side to the inner side of the scalpel head opening or from the inner side to the outer side of the scalpel head opening along the circular rail.
Description
Technical field
This utility model relates to a kind of operating theater instruments for clinical medicine external coat cataractopiesis.
Background technology
Cataract is human primary blinding oculopathy.Every a variety of causes can both cause the crystalline lens metabolism disorder such as aging, heredity, local malnutrition, immune and Developmental and Metabolic Disorder, wound, poisoning, radiation etc., causes the crystallins degeneration and muddiness occurs, and is called cataract (Cataract).Cause patient's vision to descend because light is obstructed by the crystalline lens of muddiness and can't be incident upon on the retina this moment.
The illness such as general disease such as diabetes, nephropathy, low blood calcium and prolonged application hormone medicine also can complicated cataracts.But modal is the senile cataract that betides the old people.Senile cataract is one of modal diseases causing blindness.
At present to cataractous treatment still take operation as main, phacoemulsification is to treat at present ripe, the most perfect modus operandi of cataract, the continuous curvilinear capsulotomy technology is the key of successful surgery in the art.Higher owing to the super newborn machine price of crystalline lens on the other hand, surgery cost is more expensive, and a lot of basic hospitals of China still can't be carried out this kind art formula comprehensively, but adopt traditional ECCE operation, but post-operative complication is more.Along with technology maturation, in order to reduce the ECCE operation infectious-related complication, also the continuous curvilinear capsulotomy technology is begun to be applied to have obtained preferably surgical effect in the small incision cataract ECCE in recent years.
Continuous curvilinear capsulotomy (continuous curvilineal capsulorrhexis, CCC) invented in 1987 by DrGimbel and Neuhann, owing to making the intraocular lens be positioned at the optimal physiological location of pouch, intraocular lens's off normal and inclination have effectively been prevented, reduced simultaneously the damage to corpus ciliare choroideae, minimizing is to the interference of aqueous humor barrier, therefore be that the intraocular lens is fixed on front capsule excising operation reliable and the most stable in the pouch, its performance directly affects other operations of operation, safety in the Rhizoma Atractylodis Macrocephalae is removed nucleus lentis, remove cortex of lens fully, accurate implantable artificial crystal in the pouch, and long-term postoperative guarantees artificial intraocular lenses's stability, the generation etc. that reduces the complicated by postoperative cataract all has very important clinical meaning, the CCC of a success be whole operation committed step it
Continuous curvilinear capsulotomy is higher to operation operator specification requirement.Especially implement the CCC operating difficulties for very eurypalynous cataract.Lax such as the senile cataract of period of maturation, overripe stage and part congenital cataract, traumatic cataract, nuclear cataract, cortex of lens emulsifying expansion, subluxation of lens, apparatus suspensorius lentis, the common clinical examples such as corneal leukoma, cornea Yun Yi all can cause very large obstacle to the CCC that finishes a standard in the operation.Once had the scholar to adopt to cast oblique rays on light source, continuous curvilinear capsulotomy, YAG laser cut capsule under water, the technology such as stain such as methylene blue, indole cyanogen chlorine of using attempt solving the CCC problems, but the existence of the problem such as all, complicated operation poor because of operational stability, corneal endothelium be impaired is failed by wide clinical application.Recently there is the scholar to propose to cut the capsule problem with the technology solution cataract operation of femtosecond laser, but this machine somewhat expensive, to the universal wide gap that is difficult to go beyond that causes of this technology.
Along with the raising of people's life and know-how, also more and more higher to the requirement of visual quality, cataract operation also is not only operation of regaining one's sight, or refractive surgery, and postoperative patient not only requires visible, also will see clearly Chu and lasting.Therefore guarantee under the condition of little otch, to finish circle just, placed in the middle, cut the capsule diameter less than the IOL(intra-ocular artificial lens) optical zone cut the capsule operation, be stable in the capsule to guarantee IOL, reduce IOL eccentric, guarantee that to greatest extent postoperative expection vision is particularly important.Will accurately finish the operation of such almost Perfect also only has the quite skilled super newborn doctor of minority to be competent at.
Summary of the invention
This utility model is for the existing problem of existing CCC technology, provide a kind of annular, normotopia, successional anterior lens capsule that in cataractopiesis, can satisfy accurate diameter to cut the capsule operation tool, can be accurate mechanically actuated with needing manual, unsettled operation change in the cataract operation, guarantee to greatest extent cyst membrane for just justify, placed in the middle, successional excision, reduce post-operative complication in operation risk and the art, improve success rate of operation.
For reaching above purpose, this utility model takes following technical scheme to be achieved:
A kind of scalpel of annular seriality excision anterior lens capsule, it is characterized in that, the handle of a knife that comprises a hollow, the handle of a knife front end is one section outward-dipping cutter head, the extended cutter head mouth of collection forms the memorial alloy bar of ring ring outward in the cutter head, one end of this memorial alloy bar is fixed on the outside in the cutter head mouth, after crooked from the cutter head mouth in side direction handle of a knife rear end extend out, memorial alloy bar knee cover has the slip cutting knife with blade in the cutter head mouth, be connected with two sections drawing silks on the slip cutting knife, wherein one section is wound in one and connects firmly in the cutter head mouth on the folding and unfolding pulley in the outside, and another section is stuck in the groove of the memorial alloy bar outside and extends out to the handle of a knife rear end; Memorial alloy bar in being collected in cutter head stretches out when forming ring ring outside the cutter head mouth, be enclosed within the slip cutting knife of recalling on the alloy bar and just be positioned at the outer outside of cutter head mouth, reel or the drawing silk of playback card the groove of the memorial alloy bar outside from the handle of a knife rear end, can drive the slip cutting knife extremely inboard along ring ring outside outside the cutter head mouth, or the inboard circular motion of doing continuous and stable to the outside.
In the such scheme, described ring ring cross section is the figure of eight, the slip cutting knife is " B " shape, the outside matches with the outside, ring ring cross section, blade places " B " shape bottom, the concave point place is connected with drawing silk in the middle of " B " shape, and drawing silk just is stuck in the groove of the ring cross-section outside and is positioned like this.
The end that described memorial alloy bar extends out to the handle of a knife rear end motor drive mechanism flexible with driving this memorial alloy bar is connected, and realizes the extended or retracted of memorial alloy bar by the one group of press button that is arranged on the handle of a knife outside.
The starting and terminal point sign window of memorial alloy bar is set with original position and the final position of record alloy memory stick on the handle of a knife inboard, window use scale indicate this position corresponding memorial alloy bar stretch out the diameter of the circular track of cutter head mouth profile, memorial alloy bar in being collected in cutter head stretches out when forming ring ring outside the cutter head mouth, and the diameter of described ring ring is by the control of reference mark window scale.
The described one section drawing silk that extends out to the handle of a knife rear end in the groove of the memorial alloy bar outside that is stuck in is connected with a motor drive mechanism that drives this drawing silk folding and unfolding, realizes that by another group press button that is arranged on the handle of a knife outside drawing silk reels, playback.
The inclined angle alpha of described handle of a knife and this section cutter head is 120 °-150 °.
The height of described slip cutting knife " B " shape bottom blade has different specifications from 8 μ m-20 μ m.
This utility model scalpel can enter the anterior chamber smoothly by less operative incision, keeps the just round property of cutter track, can accurately control capsule mouth diameter, guarantees placed in the middle and have seriality excision ability.Have corrosion-resistant, high temperature resistant, nonmagnetic, avirulent advantage, can satisfy the requirement of clinical sterile working and to patient's not damaged.
Compare finishing of CCC more simple and easy to do, have stronger controllability, reduce the interference of various unfavorable factors, reduce the generation of post-operative complication, the operation cost is lower, the popularization that is beneficial to perform the operation.
This utility model be finishing of phacoemulsification cataract surgery and small incision extracapsular and different size (such as diameter etc.) artificial intraocular lenses's implantation provide a cover more scientific, more improve medical apparatus and instruments.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and the specific embodiments.
Fig. 1 is the structural representation (the built-in state of cutter hub) of this utility model scalpel.
Fig. 2 is the structural representation (cutter hub stretches out state) of this utility model scalpel.
Fig. 3 is that B among Fig. 1 is to view.
Fig. 4 is that C among Fig. 2 is to view.
Fig. 5 is that A-A among Fig. 2 is to cutaway view.
Among Fig. 1 to Fig. 5: 1, drawing silk; 2, handle of a knife; 3, memorial alloy bar; 4, cutter head; 5, folding and unfolding pulley; 6, slip cutting knife; 7, cutting knife sliding trace; 8, annulus; 9, the memorial alloy bar stretches out track in handle of a knife; 10, the pulling track of drawing silk in handle of a knife; 11, shift knob; 12, memorial alloy bar beginning flag window; 13, memorial alloy bar post window; 14, blade; 15, memorial alloy bar cross section; 16, the junction point of drawing silk on the slip cutting knife.
The specific embodiment
Such as Fig. 1, shown in Figure 3, a kind of scalpel of annular seriality excision anterior lens capsule, the handle of a knife 2 that comprises a hollow, the handle of a knife front end is the cutter head 4 that a section outside (left side) tilts, the inclined angle alpha of handle of a knife and this section cutter head is 120 °-150 ° (Fig. 2), the built-in memorial alloy bar of cutter head 3(Nitinol), one end of this memorial alloy bar is fixed on the outside in the cutter head mouth, after crooked from the cutter head mouth in side direction handle of a knife rear end extend out, extend out the end motor drive mechanism flexible with driving this memorial alloy bar and be connected, by being arranged on one group of press button 11(Fig. 3 in the handle of a knife outside) realization memorial alloy bar extended or retracted.Overlap on the memorial alloy bar of bending in the cutter head mouth slip cutting knife 6 is arranged, be connected with two sections drawing silks 1 on the slip cutting knife, wherein but one section is wound in a folding and unfolding pulley 5(resilience pulley that connects firmly in the cutter head mouth outside) on, another section is stuck in the groove of the memorial alloy bar outside and extends out to the handle of a knife rear end, and is connected with a motor drive mechanism that drives this drawing silk folding and unfolding, by being arranged on another group press button 11(Fig. 3 in the handle of a knife outside) the realization drawing silk reels, playback.
Such as Fig. 2, shown in Figure 4, during operation, the anterior chamber injected viscoelastic agent after the ophthalmologist finished the operative incisions such as corneal incision or angle Gong Yuan otch routinely, hand-held handle of a knife puts in anterior chamber 2-3mm by operative incision with cutter head 4, start the switch that control memorial alloy bar stretches out in the one group of press button in the handle of a knife outside, memorial alloy bar 3 in the interior plant cutter head is slowly stretched out along track 9, outside the cutter head mouth, form gradually annulus 8(because the memorial alloy bar has the characteristics of shape memory, we can make annulus with the alloy bar shape memory), wherein the diameter of annulus 8 can be by the memorial alloy bar starting point that arranges on the handle of a knife inboard, post window 12,13 accurately controlled (reference memory alloy bar beginning flag windows 12 during retraction).At this moment, the slip cutting knife 6 that is enclosed within on the memorial alloy bar just is positioned at the cutter head mouth outside, and annulus 8 just consists of the track of slip cutting knife contiguous circumferential motion.
As shown in Figure 5, the annulus 8 of memorial alloy bar, the cross section is the figure of eight, the slip cutting knife is " B " shape, blade 14 places its bottom, the slip cutting knife outside matches with the ring cross-section outside, and middle concave point place is connected with drawing silk 1, and drawing silk just is stuck in the groove of the ring cross-section outside and is positioned like this.The height of slip cutting knife bottom blade has different specifications from 8 μ m-20 μ m, to provide the clinicist to use different slip cutting knifes according to patient age and other selecting factors that affects anterior capsule thickness, guarantee not injure peripheral cortex by the front capsule of complete resection in the operation.
When the anterior capsule excision begins, after the annulus position adjustment that forms after under operating microscope the memorial alloy bar being stretched out is placed in the middle annulus is placed with gently on the anterior capsule surface, start the switch that the control drawing silk reels in another group press button 11 of the handle of a knife outside, make the slip cutting knife 6 that is positioned at the cutter head mouth outside (left side) do the counterclockwise circular motion of continuous and stable along annulus, until slide into cutter head mouth outer inboard (right side), finish the complete annular excision of anterior capsule.
After operation is finished, annulus is lifted away from a little, starts the switch of control drawing silk playback, the slip cutting knife 6 that makes under the effect of folding and unfolding pulley 5 resilience forces is done the clockwise circular motion of continuous and stable, correcting action along annulus; Then, start the switch that control memorial alloy bar is retracted, make in the memorial alloy bar 3 retraction cutter head mouths that outside the cutter head mouth, form annulus 8, take out whole scalpel, press from both sides out the anterior capsule tissue of cutting-out with Tweezers for eye surgery.
Claims (7)
1. the scalpel of an annular seriality excision anterior lens capsule, it is characterized in that, the handle of a knife that comprises a hollow, the handle of a knife front end is one section outward-dipping cutter head, the extended cutter head mouth of collection forms the memorial alloy bar of ring ring outward in the cutter head, one end of this memorial alloy bar is fixed on the outside in the cutter head mouth, after crooked from the cutter head mouth in side direction handle of a knife rear end extend out, memorial alloy bar knee cover has the slip cutting knife with blade in the cutter head mouth, be connected with two sections drawing silks on the slip cutting knife, wherein one section is wound in one and connects firmly in the cutter head mouth on the folding and unfolding pulley in the outside, and another section is stuck in the groove of the memorial alloy bar outside and extends out to the handle of a knife rear end; Memorial alloy bar in being collected in cutter head stretches out when forming ring ring outside the cutter head mouth, the slip cutting knife that is enclosed within on the memorial alloy bar just is positioned at the outer outside of cutter head mouth, reel or the drawing silk of playback card the groove of the memorial alloy bar outside from the handle of a knife rear end, can drive the slip cutting knife along the outside of ring ring outside the cutter head mouth to inboard, or the circular motion of continuous and stable is done in outer inboard to the outside of cutter head mouth.
2. annular seriality as claimed in claim 1 is excised the scalpel of anterior lens capsule, it is characterized in that, described ring ring cross section is the figure of eight, the slip cutting knife is " B " shape, the outside matches with the outside, ring ring cross section, blade places " B " shape bottom, and the concave point place is connected with drawing silk in the middle of " B " shape, and drawing silk just is stuck in the groove of the ring cross-section outside and is positioned like this.
3. annular seriality as claimed in claim 1 is excised the scalpel of anterior lens capsule, it is characterized in that, the end that described memorial alloy bar extends out to the handle of a knife rear end motor drive mechanism flexible with driving this memorial alloy bar is connected, and realizes the extended or retracted of memorial alloy bar by the one group of press button that is arranged on the handle of a knife outside.
4. annular seriality as claimed in claim 1 is excised the scalpel of anterior lens capsule, it is characterized in that, the described one section drawing silk that extends out to the handle of a knife rear end in the groove of the memorial alloy bar outside that is stuck in is connected with a motor drive mechanism that drives this drawing silk folding and unfolding, realizes that by another group press button that is arranged on the handle of a knife outside drawing silk reels, playback.
5. the scalpel of annular seriality excision anterior lens capsule as claimed in claim 1 is characterized in that, the inclined angle alpha of described handle of a knife and this section cutter head is 120 °-150 °.
6. the scalpel of annular seriality excision anterior lens capsule as claimed in claim 2 is characterized in that, the height of described slip cutting knife " B " shape bottom blade has different specifications from 8 μ m-20 μ m.
7. annular seriality as claimed in claim 1 is excised the scalpel of anterior lens capsule, it is characterized in that, a beginning flag window and a post window of memorial alloy bar are set on the handle of a knife inboard, memorial alloy bar in being collected in cutter head stretches out when forming ring ring outside the cutter head mouth, and the diameter of described ring ring is by being controlled by the post window with reference to the beginning flag window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337676 CN202665790U (en) | 2012-07-12 | 2012-07-12 | Annular continuous scalpel for removing anterior lens capsule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337676 CN202665790U (en) | 2012-07-12 | 2012-07-12 | Annular continuous scalpel for removing anterior lens capsule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202665790U true CN202665790U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220337676 Withdrawn - After Issue CN202665790U (en) | 2012-07-12 | 2012-07-12 | Annular continuous scalpel for removing anterior lens capsule |
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| CN (1) | CN202665790U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755214A (en) * | 2012-07-12 | 2012-10-31 | 西安市第四医院 | Scalpel for circularly and continuously resecting anterior capsules of lenses |
| CN113855382A (en) * | 2021-08-25 | 2021-12-31 | 容维宁 | Corneal endothelium stripping device |
| CN114099134A (en) * | 2016-03-17 | 2022-03-01 | 卡尔蔡司白内障医疗技术公司 | Device and method for cutting lens tissue |
| CN114176654A (en) * | 2021-10-28 | 2022-03-15 | 南通市肿瘤医院 | Gynecological tumor picking forceps with telescopic function |
| US12115104B2 (en) | 2017-12-14 | 2024-10-15 | Carl Zeiss Meditec Cataract Technology Inc. | Devices and methods for ocular surgery |
-
2012
- 2012-07-12 CN CN 201220337676 patent/CN202665790U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755214A (en) * | 2012-07-12 | 2012-10-31 | 西安市第四医院 | Scalpel for circularly and continuously resecting anterior capsules of lenses |
| CN102755214B (en) * | 2012-07-12 | 2013-11-06 | 西安市第四医院 | Scalpel for circularly and continuously resecting anterior capsules of lenses |
| CN114099134A (en) * | 2016-03-17 | 2022-03-01 | 卡尔蔡司白内障医疗技术公司 | Device and method for cutting lens tissue |
| CN114099134B (en) * | 2016-03-17 | 2024-04-12 | 卡尔蔡司白内障医疗技术公司 | Device and method for cutting lens tissue |
| US12115104B2 (en) | 2017-12-14 | 2024-10-15 | Carl Zeiss Meditec Cataract Technology Inc. | Devices and methods for ocular surgery |
| CN113855382A (en) * | 2021-08-25 | 2021-12-31 | 容维宁 | Corneal endothelium stripping device |
| CN114176654A (en) * | 2021-10-28 | 2022-03-15 | 南通市肿瘤医院 | Gynecological tumor picking forceps with telescopic function |
| CN114176654B (en) * | 2021-10-28 | 2023-08-15 | 南通市肿瘤医院 | Gynaecology's tumor picks up tweezers with flexible function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130116 Effective date of abandoning: 20131106 |
|
| RGAV | Abandon patent right to avoid regrant |