WO2022231070A1 - Dispositif de détachement de cortex de corps vitré pour chirurgie ophtalmique - Google Patents

Dispositif de détachement de cortex de corps vitré pour chirurgie ophtalmique Download PDF

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Publication number
WO2022231070A1
WO2022231070A1 PCT/KR2021/011448 KR2021011448W WO2022231070A1 WO 2022231070 A1 WO2022231070 A1 WO 2022231070A1 KR 2021011448 W KR2021011448 W KR 2021011448W WO 2022231070 A1 WO2022231070 A1 WO 2022231070A1
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WO
WIPO (PCT)
Prior art keywords
cortex
guide tube
vitreous
peeling
retina
Prior art date
Application number
PCT/KR2021/011448
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English (en)
Korean (ko)
Inventor
김창룡
임선택
김선호
이준성
문형진
Original Assignee
주식회사 엠에스씨랩
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 주식회사 엠에스씨랩 filed Critical 주식회사 엠에스씨랩
Publication of WO2022231070A1 publication Critical patent/WO2022231070A1/fr

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    • 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
    • A61F9/00709—Instruments for removing foreign bodies

Definitions

  • the present invention relates to a vitreous cortex detachment apparatus for ophthalmic surgery, and more particularly, to a vitreous cortex detachment apparatus capable of very easily detaching the vitreous cortex from the retina during a vitrectomy procedure for the treatment of retinal diseases.
  • the retina is a transparent and thin film that is located in the innermost part of the eyeball wall and is in contact with the vitreous body in the eyeball. It serves as the primary visual information agency.
  • the retina is made up of over 100 million light-sensitive cells (light-sensitive photoreceptor cells), over 1 million visual nerve cells, called ganglion cells, and numerous nerve cells that act as wires connecting them. , is therefore the most sophisticated tissue in our body.
  • Retinal diseases cause abnormalities in the tissues surrounding the retina, and when the neural retina is separated from the pigment epithelial cell layer, the retina is separated to the back of the eyeball and causes visual impairment, retinal detachment, peripheral retinal degeneration and macula that cause abnormalities in the tissues surrounding the retina It can be broadly classified as macular degeneration.
  • Vitrectomy can be particularly difficult with delicate operations such as dissection and removal of the cortex surrounding the vitreous.
  • Korean Patent Application Laid-Open No. 10-2016-0124759 discloses a surgical device used for vitreous retina surgery.
  • the surgical instrument comprises a body, a pincer extending from a first end of the body and movable between an open configuration and a closed configuration, and a gripping surface formed at a distal end of at least one of the pincer.
  • Such a surgical device uses a pair of pincers to pull the vitreous cortex attached to the retina and detach the cortex from the retina. Since the cortex is composed of a very weak membrane, only the portion pinched by the pincer is detached from the retina, and the rest of the cortex is attached to the retina as it is. Therefore, in order to remove all of the cortex attached to the retina, this process must be continuously repeated, which requires a lot of time and effort. In addition, extreme caution is required because there is a risk of damaging the retina in the process of pinching the very thin cortex attached to the retina with a pair of pincers.
  • the present invention was created to improve the above problems, and it is possible to peel the vitreous cortex in a way that gently rubs and sweeps the vitreous cortex attached to the retina, so that the vitreous cortex detachment device can be operated quickly, easily and safely. Its purpose is to provide
  • the vitreous cortex detachment device for ophthalmic surgery of the present invention for achieving the above object includes a body part that can be gripped by hand; a guide tube coupled to one side of the main body and capable of being inserted into the eyeball; a lever installed on the body part; a connecting member installed to be inserted into the guide tube and connected to the lever; It is coupled with the connection member and can be exposed to the outside of the guide tube or inserted into the guide tube by manipulation of the lever, and when exposed to the outside of the guide tube, rub the cortex of the vitreous body attached to the retina from the retina and a peeling part that peels off the cortex of the vitreous.
  • the peeling part is formed of a stretchable material so that it contracts when inserted into the guide tube and expands when exposed to the outside of the guide tube.
  • the filling part is a porous body in which a plurality of pores are formed.
  • the peeling part has a fibrous structure in which a plurality of fibers are entangled.
  • the peeling unit includes a head coupled to the connecting member, and a brush unit formed on the head.
  • the vitreous cortex can be peeled off from the retina by gently rubbing the vitreous cortex attached to the retina with the peeling part and sweeping the vitreous cortex. Therefore, it is possible to perform a safe procedure while being able to perform cortical detachment of the vitreous body very quickly and easily.
  • the filling part can contract and expand, it is inserted into the eyeball through the trocar in a contracted state inside the guide tube, and is expanded after being inserted into the eyeball to maximize the contact area with the vitreous cortex. Cortical exfoliation can be performed more effectively.
  • FIG. 1 is a diagram showing a state in which the trocar is inserted into the eye so that the lighting device and the vitreous cortex detachment device of the present invention can be inserted into the eye;
  • FIG. 2 is a perspective view of a vitreous cortex detachment device according to an example of the present invention
  • FIG. 2 is cross-sectional views showing the operation of the vitreous cortex detachment mechanism of FIG. 2,
  • FIG. 5 is a schematic diagram for showing the use state of the vitreous cortex driving mechanism of Figure 2
  • FIG. 6 is a perspective view of the main part of the vitreous cortex detachment device according to another example of the present invention.
  • FIG. 7 is a perspective view of an excerpt of the vitreous cortex detachment device according to another example of the present invention.
  • vitreous cortex detachment device for ophthalmic surgery according to a preferred embodiment of the present invention will be described in detail.
  • the vitreous cortex detachment device for ophthalmic surgery of the present invention includes a body part 10 that can be gripped by hand, and one side of the body part 10 to be inserted into the eyeball 1 .
  • a guide tube 20 that can be, a lever 30 installed in the body portion 10, and a connecting member 40 installed to be inserted into the guide tube 20 and connected to the lever 30, It is coupled with the connecting member 40 and rubs the vitreous cortex attached to the retina to include a peeling unit 50 for peeling off the vitreous cortex from the retina.
  • the body portion 10 is formed to be elongated forward and backward.
  • the body portion 10 is a portion gripped by the operator by hand.
  • the body portion 10 is formed in a shape in which the diameter gradually decreases from the central portion to the rear end.
  • the main body 10 may be formed to be separable into two parts. That is, the body portion 10 may include the cap 11 and the body 15 .
  • the cap 11 is screwed to the front end of the body 15 so that it can be separated from the body 15 .
  • a through hole is formed inside the cap 11 so that the connecting member 40 can pass therethrough.
  • the front end of the cap 11 is provided with a socket portion 12 to which the guide tube 20 is inserted and coupled.
  • the inner space of the socket part 12 is connected to the through hole.
  • a screw groove is provided at the rear end of the cap 11 so that it can be screwed with the body 15 .
  • a sliding hole 16 is formed inside the body 15 .
  • the sliding hole 16 is formed at a predetermined depth at the front end of the body 15 .
  • the front end of the body 15 is provided with a screw portion 17 screwed with the cap 11 .
  • the guide tube 20 is formed long in front and back.
  • the guide tube 20 is made of a hollow structure with an empty interior.
  • the guide tube 20 is inserted into the socket part 12 of the cap 11 and coupled to the front surface of the body part 10 .
  • the guide tube 20 is a site inserted into the inside of the eyeball 1 through the trocar 7 .
  • the outer diameter of the guide tube 20 is sufficiently smaller than the inner diameter of the trocar 7 so that the guide tube 20 can pass through the trocar 7 .
  • the lever 30 is installed on the body 15 .
  • the lever 30 is installed on the body so as to be movable in the front-rear direction.
  • the lower portion of the lever 30 is connected to the moving block 18 inserted into the sliding hole 16 .
  • the moving block 18 can slide forward and backward along the sliding hole 16 .
  • the connecting member 40 is inserted into the guide tube 20 .
  • the rear end of the connecting member 40 is coupled to the moving block 18 connected to the lever 30 .
  • the connecting member 40 also moves back and forth.
  • the front end of the connecting member 40 is connected to the peeling part 50 .
  • the connecting member 40 is made of two wires. And unlike this, the connecting member may be formed of a single wire. In addition, the connecting member may be made of a rod-shaped stick having an outer diameter smaller than the inner diameter of the guide tube.
  • the peeling part 50 is coupled to the connecting member 40 .
  • the peeling unit 50 serves to peel off the vitreous cortex from the retina by rubbing the vitreous cortex attached to the retina.
  • the peeling part 50 is inserted into the guide tube 20 by the operation of the lever 30 or exposed to the outside of the guide tube 20 .
  • the peeling unit 50 peels off the cortex from the retina in a manner that gently rubs and sweeps the vitreous cortex, so that the peeling unit 50 preferably has a wide contact area with the vitreous cortex.
  • the present invention forms the peeling part 50 to be contractible and expandable, so that the volume of the peeling part changes.
  • the peeling part 50 when the peeling part 50 is to be inserted into the guide pipe 20, the peeling part 50 is contracted so that it can be completely inserted into the guide pipe 20, and the peeling part 50 is guided When exposed to the outside of the tube 20, the peeling portion is expanded as much as possible to widen the contact area with the cortex.
  • the peeling part 50 is formed of an elastically deformable elastic material. Since the peeling part 50 can be contracted, when the guide pipe 20 passes through the trocar 7, it is inserted into the guide pipe 20 in a contracted state. And after the guide tube 20 passes through the trocar 7 and is inserted into the eyeball 1, when the peeling part 50 is exposed to the outside of the guide tube 20, the peeling part 50 expands to increase the volume. get bigger
  • the peeling part 50 formed of a stretchable material may be formed of a porous body in which a plurality of cells are formed.
  • the filling part 50 of the porous body has an advantage in that the contact area with the cortex can be increased compared to the non-porous body structure having the same volume.
  • the porous body has a spongy structure in which a plurality of pores are formed inside and on the surface.
  • the pores may be an open cell connected to each other or an independent closed cell not connected to each other.
  • porous body may be a sponge.
  • a sponge is a spongy body with many pores, and has excellent elasticity. It can be made of a polymer material that is harmless to the human body with a sponge. Polyvinyl alcohol may be mentioned as such a polymer material.
  • the peeling unit 50 may have a fibrous structure in which a plurality of fibers are entangled.
  • the fiber is formed of a flexible and stretchable material, so that the peeling part can be elastically deformed.
  • the fibrous structure may have regular or irregularly intertwined fibers.
  • the peeling part of the fibrous structure can increase the contact area with the cortex and increase the frictional force with the cortex. Examples of the fibrous structure include cotton, non-woven fabric, and woven fabric.
  • the peeling part 50 may be formed in various shapes.
  • the illustrated peeling part 50 represents a peeling part having an irregular shape.
  • two trocars (5) and (7) are inserted between the sclera and the cornea while the vision is secured using a surgical microscope.
  • a lighting device is inserted into one trocar 5
  • the guide tube 20 of the vitreous cortex detachment mechanism of the present invention is inserted into the other trocar 7 .
  • the operator holds the main body 10 with one hand and then inserts the guide tube 20 into the trocar 7 .
  • the lever 30 is pushed to expose the peeling part 50 to the outside of the guide tube 20 .
  • the peeling part 50 is carefully approached to the vitreous cortex 2 attached to the retina, and then the cortex 2 is gently rubbed while moving the peeling part 50 in a zigzag manner.
  • the cortex can be separated very easily in a short time.
  • the illustrated peeling part 60 is made of a flexible and stretchable material, and has a porous structure or a fibrous structure.
  • the connection member 40 is connected to one side of the peeling part 60 , and the peeling part 60 is inserted into the guide pipe 20 or exposed to the outside of the guide pipe 20 by operation of a lever.
  • FIG. 7 Another state of the peeling part is shown in FIG. 7 .
  • the peeling unit 70 includes a head 71 coupled to the connecting member 40 and a brush unit 75 formed on the head.
  • the head 71 is coupled to the connecting member 40 .
  • the head 71 may be formed of a stretchable material having elasticity.
  • the brush part 75 is a region that is in contact with the cortex of the vitreous and rubs the cortex.
  • the brush part 75 is made of a plurality of elastic hairs.
  • the elastic cap is formed of a flexible elastic material.
  • the elastic hair has a porous body structure or a fibrous structure.
  • connection member 40 is connected to the head 71 and the brush part 75 is inserted into the guide tube 20 or exposed to the outside of the guide tube 20 by the operation of the lever.

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  • 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)
  • Prostheses (AREA)

Abstract

La présente invention concerne un dispositif de détachement de cortex de corps vitré pour chirurgie ophtalmique et, plus spécifiquement, un dispositif de détachement de cortex de corps vitré capable de détacher très facilement le cortex de corps vitré de la rétine pendant une procédure d'excision de corps vitré pour le traitement d'une maladie rétinienne. Le dispositif de détachement de cortex de corps vitré pour chirurgie ophtalmique de la présente invention comprend : une partie de corps qui peut être saisie par une main; un tube de guidage qui est couplé à un côté de la partie de corps pour pouvoir être inséré dans le globe oculaire; un levier installé au niveau de la partie de corps; un élément de liaison installé pour être inséré dans le tube de guidage et relié au levier; et une partie de pelage qui est couplée à l'élément de liaison pour pouvoir être exposée à l'extérieur du tube de guidage ou insérée dans le tube de guidage par un actionnement du levier, et lorsqu'elle est exposée à l'extérieur du tube de guidage, frotte le cortex de corps vitré attaché à la rétine pour décoller le cortex de corps vitré de la rétine.
PCT/KR2021/011448 2021-04-28 2021-08-26 Dispositif de détachement de cortex de corps vitré pour chirurgie ophtalmique WO2022231070A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2021-0054895 2021-04-28
KR1020210054895A KR102576162B1 (ko) 2021-04-28 2021-04-28 안과수술용 유리체 피질 박리기구

Publications (1)

Publication Number Publication Date
WO2022231070A1 true WO2022231070A1 (fr) 2022-11-03

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PCT/KR2021/011448 WO2022231070A1 (fr) 2021-04-28 2021-08-26 Dispositif de détachement de cortex de corps vitré pour chirurgie ophtalmique

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WO (1) WO2022231070A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6162229A (en) * 1992-09-30 2000-12-19 Staar Surgical Company, Inc. Deformable intraocular lens injecting apparatus with deformable tip plunger
US7186258B2 (en) * 2001-12-18 2007-03-06 Sabet Sina J Lenticular net instruments
US7326220B1 (en) * 2003-09-02 2008-02-05 University Of South Florida Tool for removing intraocular foreign bodies
KR20080094366A (ko) * 2007-04-20 2008-10-23 김한규 수정체 제거기
US9039718B2 (en) * 2012-07-24 2015-05-26 Blephex, Llc Method and device for treating an ocular disorder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3686040B2 (ja) 2002-01-24 2005-08-24 和久 岡田 網膜ブラシ
US20070282348A1 (en) * 2006-06-05 2007-12-06 Lumpkin Christopher F Ophthalmic microsurgical instrument
KR20150061632A (ko) * 2012-07-24 2015-06-04 블렉펙스, 엘엘씨 눈병을 치료하기 위한 디바이스
US10973682B2 (en) 2014-02-24 2021-04-13 Alcon Inc. Surgical instrument with adhesion optimized edge condition
NL2020000B9 (en) * 2017-11-30 2020-06-25 Netvlieschirurg B V Retina-cleaning instrument

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6162229A (en) * 1992-09-30 2000-12-19 Staar Surgical Company, Inc. Deformable intraocular lens injecting apparatus with deformable tip plunger
US7186258B2 (en) * 2001-12-18 2007-03-06 Sabet Sina J Lenticular net instruments
US7326220B1 (en) * 2003-09-02 2008-02-05 University Of South Florida Tool for removing intraocular foreign bodies
KR20080094366A (ko) * 2007-04-20 2008-10-23 김한규 수정체 제거기
US9039718B2 (en) * 2012-07-24 2015-05-26 Blephex, Llc Method and device for treating an ocular disorder

Also Published As

Publication number Publication date
KR102576162B1 (ko) 2023-09-07
KR20220147852A (ko) 2022-11-04

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