CN113599070A - Capsule membrane scissors for cataract surgery - Google Patents
Capsule membrane scissors for cataract surgery Download PDFInfo
- Publication number
- CN113599070A CN113599070A CN202110861564.4A CN202110861564A CN113599070A CN 113599070 A CN113599070 A CN 113599070A CN 202110861564 A CN202110861564 A CN 202110861564A CN 113599070 A CN113599070 A CN 113599070A
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- CN
- China
- Prior art keywords
- rod body
- assembly
- shearing
- cataract surgery
- scissors
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 208000002177 Cataract Diseases 0.000 title claims abstract description 27
- 238000001356 surgical procedure Methods 0.000 title claims abstract description 24
- 239000002775 capsule Substances 0.000 title claims abstract description 23
- 239000012528 membrane Substances 0.000 title abstract description 19
- 238000010008 shearing Methods 0.000 claims abstract description 43
- 230000000712 assembly Effects 0.000 abstract description 5
- 238000000429 assembly Methods 0.000 abstract description 5
- 210000003128 head Anatomy 0.000 description 13
- 238000000034 method Methods 0.000 description 6
- 206010011732 Cyst Diseases 0.000 description 4
- 208000031513 cyst Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 210000000695 crystalline len Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
- A61F9/00754—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments for cutting or perforating the anterior lens capsule, e.g. capsulotomes
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a capsular scissors for cataract surgery, which comprises a rod body, a shearing assembly, a driving assembly and a driven assembly, wherein the rod body is provided with a first end and a second end; the shearing assembly is arranged at the head end of the rod body; the driven assembly is arranged on the rod body and can slide along the axial direction of the rod body; the rod body is connected with the driven assembly through the driving assembly; during shearing, the driving assembly drives the driven assembly to slide towards the tail end of the rod body, so that the shearing assemblies are combined; the shearing assembly, the driving assembly and the driven assembly are arranged separately, the driving assembly pushes the driven assembly to move towards the tail end of the rod body by pressing the driving assembly, and the shearing assemblies are combined under the driving of the driven assembly to realize shearing; the volume of the shearing assembly can be designed to be smaller; cut when shearing assembly merges, the shearing dynamics is big for the capsule membrane is cut and can be carried out the capsule membrane under maintaining current operation incision and cut, cuts more convenient, accurate.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a pair of capsular scissors for cataract surgery.
Background
Cataract is a common ophthalmic disease, and the current method for treating cataract is to implant an artificial lens after removing a clouded crystalline lens. However, in cataract surgery, the anterior capsule opening is often too small, and therefore, it is necessary to handle the excessively constricted anterior capsule opening, and in many difficult and complicated cataract surgeries such as pupil formation, it is necessary to perform convenient and easy operations on the anterior capsule opening all around the circumference while maintaining the existing incision as much as possible.
However, the surgical instruments for treating the capsule membrane in the ophthalmic surgery are mainly conventional capsule membrane scissors, such as a capsule membrane scissors disclosed in patent document 1 (chinese patent CN104622633A), a graduated curvature capsule membrane scissors disclosed in patent document 2 (chinese patent CN102949264A), and a novel intra-ocular-forceps type capsule tearing forceps disclosed in patent document 3 (chinese patent CN110338967A), wherein although the clamping force of the surgical instruments is relatively tight, the clamping force of the surgical instruments is relatively large because the knife handles are integrally formed, and the clamping force of the surgical instruments is insufficient in patent document 3 although the clamping part of the capsule tearing forceps is relatively small.
In conclusion, the existing capsular scissors cannot meet the conditions of high force, small size and the like at the same time, the operation is affected, the operation difficulty is increased, the shearing direction cannot be converted in real time according to the operation process, and the use of medical staff in the operation is not facilitated.
Disclosure of Invention
The invention aims to solve the technical problem that the existing capsule scissors cannot meet the conditions of large force, small size and the like at the same time, and provides the capsule scissors for cataract surgery aiming at the defects of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the capsular scissors for cataract surgery comprise a rod body, a shearing assembly, a driving assembly and a driven assembly; the shearing assembly is arranged at the head end of the rod body; the driven assembly is arranged on the rod body and can slide along the axial direction of the rod body; the rod body is connected with the driven assembly through the driving assembly; when in shearing, the driving component drives the driven component to slide towards the tail end of the rod body, so that the shearing components are combined.
Further, the driven assembly comprises a sliding sleeve and a sliding cover; the sliding sleeve is arranged on the rod body; the sliding cover is arranged at the head end of the rod body; the sliding sleeve is connected with the sliding cover through a connecting rod.
Furthermore, a fixing block is arranged on the rod body; the fixed block is positioned between the sliding sleeve and the sliding cover; the fixed block is connected with the sliding sleeve through the driving assembly.
Furthermore, a limiting hole is formed in the fixing block; the connecting rod penetrates through the limiting hole.
Further, the driving assembly comprises an elastic sheet; the elastic piece is respectively connected with the fixed block and the sliding sleeve.
Further, the shearing assembly comprises two tool shanks which are arranged in a crossed mode; the head end of the rod body is provided with a lug for mounting the knife handle; a through hole is formed in the sliding cover; the head end of the through hole is contracted inwards; the inner wall of the through hole is in contact with the tool shank.
Furthermore, the head end of the cutter handle is provided with a connecting handle and a fixing hole arranged on the connecting handle; the tail end of the knife handle is connected with the rod body through a spring.
Furthermore, a first cutter head is arranged on the connecting handle; the length of the first tool bit is 3cm-4 cm.
Furthermore, a second cutter head is arranged on the connecting handle; the length of the second tool bit is 1cm-2 cm.
Furthermore, a third cutter head is arranged on the connecting handle; the angle between the tool tip part of the third tool bit and the axis of the rod body is 30-60 degrees.
The invention has the beneficial effects that: the shearing assembly, the driving assembly and the driven assembly are arranged separately, the driving assembly pushes the driven assembly to move towards the tail end of the rod body by pressing the driving assembly, and the shearing assemblies are combined under the driving of the driven assembly to realize shearing; the volume of the shearing assembly can be designed to be smaller; cut when shearing assembly merges, the shearing dynamics is big for the capsule membrane is cut and can be carried out the capsule membrane under maintaining current operation incision and cut, cuts more convenient, accurate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:
fig. 1 is a schematic structural diagram of a capsular scissors for cataract surgery according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view taken at A-A of FIG. 1 in accordance with an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the embodiment of the present invention at B in FIG. 2;
FIG. 4 is a schematic structural diagram of a capsular scissors for cataract surgery, which comprises a first cutting head according to an embodiment of the invention;
FIG. 5 is a schematic diagram of a capsular scissors for cataract surgery, which comprises a second cutting head according to an embodiment of the invention;
fig. 6 is a schematic structural diagram of a capsular scissors for cataract surgery, which comprises a third cutting head according to an embodiment of the invention.
In the figure, 1, a rod body; 11. a fixed block; 12. a bump; 21. a knife handle; 22. a first cutter head; 23. a second cutter head; 24. a third cutter head; 31. an elastic sheet; 41. a sliding sleeve; 42. a sliding cover; 43. a connecting rod; 111. a limiting hole; 211. a connecting handle; 212. a fixing hole; 213. a spring; 421. and a through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.
Fig. 1 to 3 show a preferred embodiment of the present invention, which provides a pair of capsular scissors for cataract surgery, comprising a rod body 1, a cutting assembly, a driving assembly and a driven assembly; the shearing assembly is arranged at the head end of the rod body 1; the driven assembly is arranged on the rod body 1 and can slide along the axial direction of the rod body 1; the rod body 1 is connected with the driven assembly through the driving assembly; during shearing, the driving assembly drives the driven assembly to slide towards the tail end of the rod body 1, so that the shearing assemblies are combined.
The driven assembly can slide on the surface of the rod body 1 along the axial direction of the rod body 1; when carrying out the cyst membrane and cuting, press drive assembly, drive assembly promotes driven subassembly and moves to body of rod 1 end, and driven subassembly drives and cuts the subassembly and merge. After shearing, the driving assembly restores to the original position to drive the driven assembly to move towards the head end of the rod body 1, and the shearing assembly is opened again.
The shearing assembly, the driving assembly and the driven assembly are arranged separately, the driving assembly pushes the driven assembly to move towards the tail end of the rod body 1 by pressing the driving assembly, and the shearing assemblies are combined under the driving of the driven assembly to realize shearing; the volume of the shearing assembly can be designed to be smaller; cut when shearing assembly merges, the shearing dynamics is big for the capsule membrane is cut and can be carried out the capsule membrane under maintaining current operation incision and cut, cuts more convenient, accurate.
In a further embodiment, the driven assembly includes a sliding sleeve 41 and a sliding cover 42; the sliding sleeve 41 is arranged on the rod body 1; the sliding cover 42 is arranged at the head end of the rod body 1; the sliding sleeve 41 is connected with the sliding cover 42 through a connecting rod 43. The sliding cover 42 is provided with a first connecting block; a second connecting block is arranged on the sliding sleeve 41; the two ends of the connecting rod 43 are respectively arranged on the first connecting block and the second connecting block and are fixed through the pin columns.
In a further embodiment, a fixing block 11 is arranged on the rod body 1; the fixed block 11 is positioned between the sliding sleeve 41 and the sliding cover 42; the fixed block 11 is connected with the sliding sleeve 41 through a driving assembly. Wherein, the fixed block 11 is provided with a first mounting block, and the sliding sleeve 41 is provided with a second mounting block.
Further, the driving assembly includes an elastic piece 31; the elastic piece 31 is connected with the fixed block 11 and the sliding sleeve 41 respectively.
The elastic piece 31 is arc-shaped, and two ends of the elastic piece are respectively installed on the first installation block and the second installation block. When the capsular is cut, the middle convex part of the elastic sheet 31 is pressed, the elastic sheet 31 pushes the sliding sleeve 41 to slide towards the tail end of the rod body 1, and the rod body 1 drives the top cover to slide in the same direction through the connecting rod 43, so that the cutting assembly is combined to finish cutting.
In a further embodiment, the fixing block 11 is provided with a limiting hole 111; the link 43 passes through the stopper hole 111.
The limiting hole 111 enables the sliding sleeve 41 and the sliding cover 42 to keep linear sliding on the rod body 1, and the sliding process does not rotate, so that the situation that the shearing assembly cannot be combined for shearing in the moving process of the sliding cover 42 is prevented.
In a further embodiment, the shearing assembly comprises two tool shanks 21 arranged crosswise; the head end of the rod body 1 is provided with a convex block 12 for installing a knife handle 21; a through hole 421 is arranged in the sliding cover 42; the head end of the through hole 421 is contracted inwards; the inner wall of the through hole 421 contacts the shank 21. The lug 12 is smaller in thickness and is a thin sheet, the two cross-arranged knife handles 21 are hinged to the lug 12 through the pin columns, the tail ends of the through holes 421 are sleeved on the rod body 1, the sliding cover 42 can slide along the surface of the rod body 1, and the head ends of the through holes 421 shrink inwards to enable the sliding cover to be in contact fit with the knife handles 21 in a cross state. The width of the head end of the through hole 421 is the minimum width when the two tool shanks 21 are in the crossed state.
After the elastic sheet 31 is pressed, the elastic sheet 31 pushes the sliding sleeve 41 to drive the sliding cover 42 to slide towards the tail end of the rod body 1, the knife handles 21 in the crossed state are gradually combined along with the sliding of the sliding cover 42 under the condition that the head end of the through hole 421 of the sliding cover 42 is contracted, and the cutting is realized when the two knife handles 21 are overlapped.
In a further embodiment, the head end of the tool shank 21 is provided with a connecting handle 211 and a fixing hole 212 arranged on the connecting handle 211; the end of the knife handle 21 is connected with the rod body 1 through a spring 213. After shearing, loosen flexure strip 31, flexure strip 31 reconversion under the effect of elasticity, sliding sleeve 41 is pulled back the original position, and sliding sleeve 41 drives sliding closure 42 and moves to body of rod 1 head end, and handle of a knife 21 is pulled back the original position by spring 213, and along with sliding closure 42 reconversion original position, two handle of a knife 21 open, are in the cross state, wait for shearing next time.
In one embodiment, as shown in FIG. 4, the first blade head 22 is provided on the shank 211; the length of the first tool tip 22 is 3cm-4 cm. The first cutter head 22 is sleeved on the connecting handle 211, and the connecting handle 211 penetrates through the first cutter head 22 and is fixedly connected with the fixing hole 212. The first knife head 22 is longer, so that the knife tip part is more slender, when the capsule membrane at the far end is cut, the first knife head 22 can penetrate into the operation incision to cut the capsule membrane at the far end, the cataract operation process can be completed under the condition of maintaining the existing operation incision, and the cutting is more convenient.
In one embodiment, as shown in FIG. 5, the second cutting head 23 is provided on the connecting shank 211; the length of the second tool bit 23 is 1cm-2 cm. The second cutting head 23 is sleeved on the connecting handle 211, and the connecting handle 211 penetrates through the second cutting head 23 and is fixedly connected with the fixing hole 212. The second cutter head 23 is shorter, and the operation is more convenient when the near-end capsule membrane is cut.
In one embodiment, as shown in FIG. 6, the connecting shank 211 is provided with a third cutting head 24; the angle between the tip portion of the third tool tip 24 and the axis of the shank 1 is 30-60. The tip portion of the third tool tip 24 is relatively slender. When need cut left side cyst membrane or right side cyst membrane, penetrate current operation incision back through crooked third tool bit 24, readjust the direction that the cyst membrane was cut for the pointedness portion of third tool bit 24 is facing to required shearing position, cuts the convenience, can accomplish cataract surgery process under the condition that maintains current incision, cuts more conveniently.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. A capsule film scissors for cataract operation is characterized in that: comprises a rod body, a shearing component, a driving component and a driven component; the shearing assembly is arranged at the head end of the rod body; the driven assembly is arranged on the rod body and can slide along the axial direction of the rod body; the rod body is connected with the driven assembly through the driving assembly; when in shearing, the driving component drives the driven component to slide towards the tail end of the rod body, so that the shearing components are combined.
2. The capsular scissors for cataract surgery as claimed in claim 1, wherein the driven assembly comprises a sliding sleeve and a sliding cover; the sliding sleeve is arranged on the rod body; the sliding cover is arranged at the head end of the rod body; the sliding sleeve is connected with the sliding cover through a connecting rod.
3. The capsular scissors for cataract surgery as claimed in claim 2, wherein the rod body is provided with a fixed block; the fixed block is positioned between the sliding sleeve and the sliding cover; the fixed block is connected with the sliding sleeve through the driving assembly.
4. The capsular scissors for cataract surgery as claimed in claim 3, wherein the fixing block is provided with a limiting hole; the connecting rod penetrates through the limiting hole.
5. The capsular scissors for cataract surgery as claimed in claim 3, wherein the driving assembly comprises an elastic piece; the elastic piece is respectively connected with the fixed block and the sliding sleeve.
6. The capsular scissors for cataract surgery as defined in claim 2, wherein the cutting assembly comprises two tool shanks arranged in a crossed manner; the head end of the rod body is provided with a lug for mounting the knife handle; a through hole is formed in the sliding cover; the head end of the through hole is contracted inwards; the inner wall of the through hole is in contact with the tool shank.
7. The capsular scissors for cataract surgery as claimed in claim 6, wherein the head end of the handle is provided with a connecting handle and a fixing hole arranged on the connecting handle; the tail end of the knife handle is connected with the rod body through a spring.
8. The capsular scissors for cataract surgery as claimed in claim 7, wherein the connecting handle is provided with a first cutter head; the length of the first tool bit is 3cm-4 cm.
9. The capsular scissors for cataract surgery as claimed in claim 7, wherein the connecting handle is provided with a second cutter head; the length of the second tool bit is 1cm-2 cm.
10. The capsular scissors for cataract surgery as claimed in claim 7, wherein the connecting handle is provided with a third cutter head; the angle between the tool tip part of the third tool bit and the axis of the rod body is 30-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110861564.4A CN113599070B (en) | 2021-07-29 | 2021-07-29 | Capsular scissors for cataract surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110861564.4A CN113599070B (en) | 2021-07-29 | 2021-07-29 | Capsular scissors for cataract surgery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113599070A true CN113599070A (en) | 2021-11-05 |
| CN113599070B CN113599070B (en) | 2023-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110861564.4A Active CN113599070B (en) | 2021-07-29 | 2021-07-29 | Capsular scissors for cataract surgery |
Country Status (1)
| Country | Link |
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| CN (1) | CN113599070B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949264A (en) * | 2012-11-16 | 2013-03-06 | 首都医科大学附属北京友谊医院 | Variable curvature capsulotomy vannas scissors with scales |
| US20140074088A1 (en) * | 2008-01-14 | 2014-03-13 | Valens Associated Inc. | Circular thermal capsulotomy tool and system |
| CN104622633A (en) * | 2015-02-13 | 2015-05-20 | 苏州贝尔一锋医疗器械有限公司 | Envelope scissors |
| CN104970918A (en) * | 2015-07-27 | 2015-10-14 | 浙江大学 | Microforceps used for posterior curvilinear capsulorhexis of sclera microincision posterior cataract |
| CN205598088U (en) * | 2016-03-18 | 2016-09-28 | 邱敬华 | Nuclear ware is split to super newborn crystal of singlehanded ophthalmology |
| CN209594300U (en) * | 2018-10-19 | 2019-11-08 | 泌阳县长旺农业科技发展有限公司 | A kind of apple picking device |
| CN210932192U (en) * | 2019-07-15 | 2020-07-07 | 刘迁 | Capsular scissors for cataract surgery |
| CN211213831U (en) * | 2019-09-24 | 2020-08-11 | 首都医科大学附属北京同仁医院 | Rotary type capsular scissors |
| CN212662078U (en) * | 2020-03-10 | 2021-03-09 | 江苏康视佳医疗器械有限公司 | Artificial endosome scissors for crystal eye |
-
2021
- 2021-07-29 CN CN202110861564.4A patent/CN113599070B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140074088A1 (en) * | 2008-01-14 | 2014-03-13 | Valens Associated Inc. | Circular thermal capsulotomy tool and system |
| CN102949264A (en) * | 2012-11-16 | 2013-03-06 | 首都医科大学附属北京友谊医院 | Variable curvature capsulotomy vannas scissors with scales |
| CN104622633A (en) * | 2015-02-13 | 2015-05-20 | 苏州贝尔一锋医疗器械有限公司 | Envelope scissors |
| CN104970918A (en) * | 2015-07-27 | 2015-10-14 | 浙江大学 | Microforceps used for posterior curvilinear capsulorhexis of sclera microincision posterior cataract |
| CN205598088U (en) * | 2016-03-18 | 2016-09-28 | 邱敬华 | Nuclear ware is split to super newborn crystal of singlehanded ophthalmology |
| CN209594300U (en) * | 2018-10-19 | 2019-11-08 | 泌阳县长旺农业科技发展有限公司 | A kind of apple picking device |
| CN210932192U (en) * | 2019-07-15 | 2020-07-07 | 刘迁 | Capsular scissors for cataract surgery |
| CN211213831U (en) * | 2019-09-24 | 2020-08-11 | 首都医科大学附属北京同仁医院 | Rotary type capsular scissors |
| CN212662078U (en) * | 2020-03-10 | 2021-03-09 | 江苏康视佳医疗器械有限公司 | Artificial endosome scissors for crystal eye |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113599070B (en) | 2023-12-15 |
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