CN112716689B - Ophthalmic surgical instrument - Google Patents
Ophthalmic surgical instrument Download PDFInfo
- Publication number
- CN112716689B CN112716689B CN202110047328.9A CN202110047328A CN112716689B CN 112716689 B CN112716689 B CN 112716689B CN 202110047328 A CN202110047328 A CN 202110047328A CN 112716689 B CN112716689 B CN 112716689B
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- CN
- China
- Prior art keywords
- sleeve
- surgical instrument
- ophthalmic surgical
- scroll
- spool
- Prior art date
- 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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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
- A61F9/00727—Apparatus for retinal reattachment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36046—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of the eye
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Ophthalmology & Optometry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Radiology & Medical Imaging (AREA)
- Vascular Medicine (AREA)
- Surgery (AREA)
- Cardiology (AREA)
- Electrotherapy Devices (AREA)
Abstract
The application discloses an ophthalmic surgical instrument, comprising: a grip portion; the scroll is connected to one end of the holding part; the sleeve is configured to be sleeved outside the scroll and can move along the axial direction of the scroll, and a slit penetrating through two axial ends of the sleeve is formed in the sleeve; an accommodating space is formed between the sleeve and the scroll and is used for accommodating the flexible electrode wound on the scroll. The ophthalmic surgical instrument provided by the application has a simple structure. According to the application, the flexible electrode can be wound on the reel, so that the incision width can be narrowed, the trauma to eyes is reduced, and the operation risk is reduced; in addition, the flexible electrode can be protected from external force when passing through the incision on the eyeball. The application has convenient operation, reduces the operation difficulty and shortens the operation time.
Description
Technical Field
The application relates to the technical field of medical instruments, in particular to an ophthalmic surgical instrument.
Background
Visual prostheses are implantable medical devices that are intended to assist patients with retinal or other visual organ lesions in regaining brightness and vision. Normal vision is formed by photoreceptor cells (e.g., cones and rods) on the retina converting light stimuli into electrical signals, and transmitting nerve impulses to the visual cortex after each layer of cells (e.g., horizontal cells, bipolar cells, ganglion cells, etc.) of the retina has been encoded.
One visual prosthesis design commonly used at present is to implant microelectrode implants on the surface of the retina, thereby helping patients with outer retinal degeneration diseases such as retinitis pigmentosa and age-related macular degeneration. The visual prosthesis comprises two parts, an implant and an outer part. The electronic package in the implant is sutured outside the sclera of the eyeball, the flexible electrode passes through the eyeball wall, and the electrode array at the end of the flexible electrode passes through the fixation nails to be fixed on the surface of the retina. The external part comprises a camera for collecting video information, the video information is wirelessly transmitted to an electronic package body of the implant after data conversion, the electrode array transmits stimulation to retina in an electric stimulation mode, and the electric pulse signals transmitted to the retina stimulate neurons which still remain in function on the retina, and the stimulation is transmitted to brain through visual nerves, so that a patient can generate visual perception.
In the related art, the flexible electrode of the implant is first cut into the sclera of the eyeball during the implantation process, and then the flexible electrode is held by forceps and extends into the cut. However, because the flexible electrode is generally soft relative to the slit-shaped incision in the sclera, the flexible electrode is difficult to pass through the slit and is prone to tearing and cracking due to excessive force. In addition, for high channel count electrode arrays, the flexible electrode width is generally large, which in turn results in a corresponding increase in surgical incision, increasing surgical risk.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, it is an object of the present application to provide an ophthalmic surgical instrument which reduces the width of the surgical incision, reduces the risk of surgery, protects the flexible electrode, and enables the whole surgical procedure to be simple, the doctor to operate conveniently, and the time to use to be small.
An ophthalmic surgical instrument according to an embodiment of the present application includes: a grip portion; the scroll is connected to one end of the holding part; the sleeve is configured to be sleeved outside the scroll and can move along the axial direction of the scroll, and a slit penetrating through two axial ends of the sleeve is formed in the sleeve; an accommodating space is formed between the sleeve and the scroll and is used for accommodating the flexible electrode wound on the scroll.
The ophthalmic surgical instrument provided by the embodiment of the application has a simple structure. Compared with the traditional mode of clamping the flexible electrode by forceps, the flexible electrode can be wound on the reel, so that the incision width can be narrowed, the trauma to eyes is reduced, and the operation risk is reduced; in addition, the flexible electrode can be protected from external force when passing through the incision on the eyeball. The application has convenient operation, reduces the operation difficulty and shortens the operation time.
According to some embodiments of the application, the length of the spool is greater than the length of the sleeve.
According to some embodiments of the application, the sleeve has a lead hole formed therein.
According to some embodiments of the application, the lead hole is located at an end of the sleeve adjacent to the grip portion.
According to some embodiments of the application, a connection is connected between the grip and the spool, the connection having a diameter smaller than the spool diameter.
According to some embodiments of the application, the angle between the grip and the spool is greater than 90 °.
According to some embodiments of the application, the receiving space is for receiving an electrode array of the flexible electrode.
According to some embodiments of the application, the material of the spool or sleeve is titanium alloy, pure titanium, platinum iridium alloy, stainless steel, or noble metal.
According to some embodiments of the application, the outer surfaces of the spool and the sleeve are each formed with a protective film.
According to some embodiments of the application, the protective film is a silicone film, a polyimide film, a polypropylene film, a poly-terephthalic acid film, or a poly-p-xylene film.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a perspective view of an ophthalmic surgical instrument according to an embodiment of the present application;
FIG. 2 is a front view of the ophthalmic surgical instrument shown in FIG. 1;
FIG. 3 is an assembled perspective view of the spool and sleeve of the ophthalmic surgical instrument shown in FIG. 1;
FIG. 4 is a front view of the spool and sleeve shown in FIG. 3;
fig. 5 is a perspective view of a retinal implant according to an embodiment of the present application;
fig. 6 is a schematic view of a retinal implant according to an embodiment of the present application when the retinal implant is implanted in an eyeball.
Reference numerals:
100: an ophthalmic surgical instrument;
1: a grip portion; 2: a reel;
3: a sleeve; 31: slotting; 32: an accommodating space; 33: a lead hole;
4: a connection part;
200: a retinal implant; 201: an electrode array; 202: an electronic package;
2021: a suture part; 203: a cable;
300: an eyeball; 301: a retina; 302: a notch; 400: and (5) fixing nails.
Detailed Description
Embodiments of the present application will be described in detail below, by way of example with reference to the accompanying drawings.
An ophthalmic surgical instrument 100 according to an embodiment of the present application is described below with reference to fig. 1-6.
As shown in fig. 1 to 4, an ophthalmic surgical instrument 100 according to an embodiment of the present application includes a grip portion 1, a reel 2, and a sleeve 3.
Specifically, the grip portion 1 is convenient for a doctor to hold at the time of surgery. The reel 2 is connected to one end (e.g., the right end in fig. 1) of the grip portion 1. The sleeve 3 is configured to be fitted over the outside of the spool 2, and the sleeve 3 is movable in the axial direction of the spool 2, and slits 31 penetrating both ends of the sleeve 3 in the axial direction are formed in the sleeve 3. For example, in the example of fig. 1 to 4, the slit 31 penetrates the sleeve 3 in the thickness direction of the sleeve 3, and penetrates both end faces in the axial direction of the sleeve 3. An accommodating space 32 is formed between the sleeve 3 and the reel 2, and the accommodating space 32 is used for accommodating the flexible electrode wound on the reel 2.
For example, in the process of implanting the flexible electrode, before the flexible electrode enters the incision 302 on the sclera of the eyeball 300, the flexible electrode may be wound on the reel 2, the sleeve 3 is mounted on the reel for limiting, then the holding part 1 is held, the sleeve 3 and the reel 2 can smoothly pass through the incision 302, another surgical tool can be inserted into another position of the eyeball 300, the flexible electrode is clamped, then the sleeve 3 is withdrawn backwards from the reel 2, the part of the flexible electrode located outside the eye is removed from the slit 31 on the sleeve 3, and after that, the flexible electrode is taken out from the reel 2, and the reel 2 is removed from the incision 302. The whole operation process is simple, the operation is convenient for doctors, and the time is less. Moreover, since the flexible electrode can be wound on the reel 2, the widths of the reel 2 and the sleeve 3 can be made small, and the incision 302 can be narrowed, so that the implantation operation can be successfully completed, and the ocular trauma is reduced.
The ophthalmic surgical instrument 100 according to the embodiment of the present application has a simple structure. Compared with the traditional mode of clamping the flexible electrode by forceps, the electrode array 201 of the flexible electrode can be wound on the reel 2, so that the width of the incision 302 can be narrowed, the trauma to eyes is reduced, and the operation risk is reduced; in addition, the flexible electrode can be protected from external force while passing through the incision 302 on the eyeball 300. The application has convenient operation, reduces the operation difficulty and shortens the operation time.
According to some embodiments of the present application, the receiving space 32 is used to receive an electrode array 201 of flexible electrodes. The electrode array 201 delivers stimulation to the retina 301 by way of electrical stimulation, and the electrical impulse signals delivered to the retina 301 stimulate neurons on the retina 301 that remain functional, and deliver the stimulation to the brain by way of visual nerves, causing the patient to produce a visual perception.
Specifically, for example, the width of the electrode array 201 is generally 4-6mm and the width of the incision 302 is generally 0.5-2mm wider than the electrode array 201 in the prior art, so that it can smoothly extend into the interior of the eyeball 300. After the ophthalmic surgical apparatus 100 according to the embodiment of the present application is used, since the electrode array 201 of the flexible electrode is wound, the width of the incision 302 can be smaller than that of the conventional incision, so that the risk of surgery is reduced, the eye trauma is reduced, and the postoperative rehabilitation is easier to realize.
According to some embodiments of the application, referring to fig. 1 and 3, the length of the spool 2 is greater than the length of the sleeve 3. For example, in the example of fig. 1 and 3, the free end of the spool 2 (e.g., the right end in fig. 1 and 3) may extend out of the sleeve 3 to facilitate the physician's view of the flexible electrode wound on the spool 2.
According to a further embodiment of the application, the sleeve 3 is formed with a lead hole 33. As shown in fig. 3, the lead hole 33 may be a through hole penetrating the wall thickness of the sleeve 3. So configured, the thread can be threaded into the lead hole 33, avoiding the sleeve 3 from falling into the eye during the operation, and the sleeve 3 can be pulled back from the reel 2 by the thread.
Further, referring to fig. 3, the lead hole 33 is located at one end (e.g., left end in fig. 3) of the sleeve 3 adjacent to the grip portion 1. Thereby, the sleeve 3 can be better prevented from falling into the eye during surgery, and the sleeve 3 can be pulled back from the reel 2 more conveniently by the thread, while avoiding damage to the eye.
According to some embodiments of the present application, as shown in fig. 1 to 4, a connection part 4 is connected between the grip part 1 and the reel 2, and the diameter of the connection part 4 is smaller than that of the reel 2. For example, in the example of fig. 1 to 4, the reel 2 and the connection part 4 may be of a coaxially connected cylindrical structure, and the cross-sectional area of the connection part 4 is smaller than that of the reel 2 so as to facilitate the convenient and smooth feeding of the reel 2 and the sleeve 3 into the eye, and the connection part 4 may extend the reel 2 forward by a suitable length so as to facilitate the operation; in addition, since the cross section of the connecting portion 4 is small, it is convenient for a doctor to observe the reel 2 and the sleeve 3.
Alternatively, referring to fig. 1, the angle between the grip portion 1 and the reel 2 is greater than 90 °, and the doctor can directly observe the states of the reel 2 and the sleeve 3 and the flexible electrode therebetween, so as to facilitate the operation.
Referring to fig. 1-4 in combination with fig. 5-6, the implantation process of retinal implant 200 is briefly described as follows: the electronic package 202 of flexible electrodes is first sutured to the sclera (e.g., the superior temporal quadrant) and the distance between the suture 2021 and the limbus is secured, then a vitrectomy is performed, and the sclera is cut to form an incision 302, the electrode array 201 is introduced into the eyeball 300 from the incision 302, and the electrode array 201 is fixed to the macular area of the surface of the retina 301 by the staples 400.
The electrode array 201 can be conveniently transferred to the space inside the eye by guiding the electrode array 201 through the special ophthalmic surgical instrument 100, then the electrode array 201 can be clamped by extending another clamping tool at another position outside the incision 302, then the sleeve 3 is withdrawn backwards from the reel 2, the cable 203 of the flexible electrode is removed from the slit 31 on the sleeve 3, then the electrode array 201 is taken out from the reel 2 of the application, and then the reel 2 is removed from the incision 302. Thereafter, surgical procedures such as implantation of staples 400 are performed. The whole operation process is simple, the doctor is convenient to operate, and the time is less.
Alternatively, the material of the reel 2 or the sleeve 3 is titanium alloy, pure titanium, platinum iridium alloy, stainless steel, noble metal, or the like. Thus, the material of the reel 2 or the sleeve 3 is harder and has better biocompatibility, so that the electrode array 201 can be more conveniently guided into the interior of the eye, but is not limited thereto.
In order to avoid damage to the electrode array 201 by the reel 2 and the sleeve 3, the outer surfaces of the reel 2 and the sleeve 3 may each be formed with a protective film (not shown). Alternatively, the protective film is a silicone film, a Polyimide (Polyimide) film, a Polypropylene (Polypropylene) film, a polyethylene terephthalate (PET, PETE, polyethylene Terephthalate) film, a parylene film, or the like.
Of course, the present application is not limited thereto, and a protective film may be formed on the electrode array 201, for example, the edge of the electrode array 201 and the surface facing away from the stimulating electrode may be coated with the protective film, and the material of the protective film is preferably silica gel, or Polyimide (Polypropylene), polyethylene terephthalate (PET, PETE, polyethylene Terephthalate), or parylene, etc. may be formed on the electrode array 201 by injection molding or spin coating.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An ophthalmic surgical instrument, comprising:
a grip portion;
the scroll is connected to one end of the holding part;
the sleeve is configured to be sleeved outside the scroll and can move along the axial direction of the scroll, and a slit penetrating through two axial ends of the sleeve is formed in the sleeve;
an accommodating space is formed between the sleeve and the reel, and is used for accommodating an electrode array of flexible electrodes of the retinal implant wound on the reel;
when the retina implant is implanted into an eyeball, the electronic packaging body of the retina implant is sewed on the outer surface of the eyeball, the scroll shaft containing the flexible electrode and the sleeve are suitable for passing through the incision of the eyeball, another surgical tool stretches into another position of the eyeball to clamp the electrode array, the sleeve is withdrawn backwards from the scroll shaft, and the cable is removed from the incision.
2. The ophthalmic surgical instrument of claim 1, wherein the length of the spool is greater than the length of the sleeve.
3. The ophthalmic surgical instrument of claim 1, wherein the sleeve has a lead hole formed therein.
4. An ophthalmic surgical instrument as claimed in claim 3, wherein the lead aperture is located at an end of the sleeve adjacent the grip portion.
5. The ophthalmic surgical instrument of claim 1, wherein a connection is connected between the grip and the spool, the connection having a diameter that is smaller than a diameter of the spool.
6. An ophthalmic surgical instrument as claimed in claim 1, wherein the angle between the grip and the spool is greater than 90 °.
7. The ophthalmic surgical instrument for implanting a flexible electrode according to claim 1, wherein the receiving space is for receiving an electrode array of the flexible electrode.
8. The ophthalmic surgical instrument of any one of claims 1-7, wherein the material of the spool or sleeve is titanium alloy, pure titanium, platinum iridium alloy, stainless steel, or noble metal.
9. An ophthalmic surgical instrument as claimed in any one of claims 1-7, wherein the outer surfaces of the spool and sleeve are each formed with a protective film.
10. The ophthalmic surgical instrument of claim 9, wherein the protective film is a silicone film, a polyimide film, a polypropylene film, a poly-terephthalic acid film, or a poly-para-xylene film.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020114664817 | 2020-12-14 | ||
| CN202011466481 | 2020-12-14 |
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| Publication Number | Publication Date |
|---|---|
| CN112716689A CN112716689A (en) | 2021-04-30 |
| CN112716689B true CN112716689B (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110047328.9A Active CN112716689B (en) | 2020-12-14 | 2021-01-14 | Ophthalmic surgical instrument |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114469509B (en) * | 2022-02-24 | 2023-03-31 | 微智医疗器械有限公司 | Ophthalmologic operation forceps |
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| CN112716689A (en) | 2021-04-30 |
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