EP4444236A1 - Ophthalmologisches handgerät und verfahren zum einstellen eines ophthalmologischen handgeräts - Google Patents
Ophthalmologisches handgerät und verfahren zum einstellen eines ophthalmologischen handgerätsInfo
- Publication number
- EP4444236A1 EP4444236A1 EP23729952.4A EP23729952A EP4444236A1 EP 4444236 A1 EP4444236 A1 EP 4444236A1 EP 23729952 A EP23729952 A EP 23729952A EP 4444236 A1 EP4444236 A1 EP 4444236A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- ophthalmological
- active part
- handle
- hand
- 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.)
- Pending
Links
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
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
- A61F9/00763—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments with rotating or reciprocating cutting elements, e.g. concentric cutting needles
Definitions
- the invention relates to an ophthalmological hand-held device, in particular a vitrector, tube-guided forceps, tube-guided scissors, etc., with a handle and an, in particular tubular, active part connected to the handle.
- the invention further relates to a method for adjusting an ophthalmological handheld device.
- this is a hand-held ophthalmological device that has an active part that is inserted into the eye to manipulate tissue in the broadest sense.
- This can be, for example, a tube-guided forceps, a tube-guided scissors, a vitrector or any other instrument.
- a vitrector is used to remove tissue from the eye. With the vitrector or its active part, the tissue in the eye can be cut and suctioned out of the eye. Specifically, as part of a vitrectomy, the vitrector is used to destroy or crush the vitreous body in the eye and remove/suction it out of the eye. This instrument can also be used to remove blood, blood clots and connective tissue-like changes as well as areas of the retina as part of a retinal peeling.
- the devices in question here for use in eye surgery require the smallest dimensions.
- the inner tube has a wall thickness of four hundredths of a millimeter.
- the outer tube has an outside diameter in the range of 0.5 to 0.9 mm and an inside diameter of 0.35 to 0.37 mm. Accordingly, the outer diameter of the inner tube must be adapted to the inner diameter of the outer tube with the least possible play.
- the ophthalmological hand-held devices known from the prior art for example vitrectors, are offered in different diameters (gauges) so that the surgeon can select the appropriate hand-held device depending on the procedure to be carried out and his or her own preferences.
- the disadvantage is that the user is not given any further setting options to adapt the properties of the vitrector.
- the present invention is therefore based on the object of designing and developing an ophthalmological hand-held device in such a way that further settings of the properties of the hand-held device are possible using structurally simple means. Furthermore, a method for adjusting an ophthalmological handheld device is to be specified.
- an ophthalmological hand-held device in particular vitrector, tube-guided forceps, tube-guided scissors, etc., with a handle and an active part, in particular tubular, connected to the handle, is characterized in that: active part is at least partially surrounded at its end assigned to the handle by a sleeve movable in the longitudinal direction of the active part.
- an ophthalmological handheld device in particular an ophthalmological handheld device according to one of claims 1 to 7, preferably a vitrector, wherein an active part is at least partially surrounded at its end assigned to the handle by a sleeve which can be moved in the longitudinal direction of the active part is and wherein the sleeve is moved in the longitudinal direction such that the area of the active part protruding from the sleeve has the desired length.
- an ophthalmological handheld device can be improved in a surprisingly simple manner by surrounding the end of the active part assigned to the handle by a sleeve which is movable in the longitudinal direction, i.e. along the direction of extension of the active part. This makes it easy to adjust the length of the area of the active part that protrudes from the sleeve. The user or surgeon is thus able to adjust the effectively usable length of the active part.
- the hand-held ophthalmological device can be a vitrector.
- the active part can be used for cutting and suctioning tissue from the human or animal eye and has an outer tube and an inner tube arranged in the outer tube, the inner tube being displaceable and/or rotatable relative to the outer tube, the inner tube and the outer tube respectively have at least one opening with at least one cutting edge and wherein the cutting edge of the inner tube interacts in a cutting manner with the cutting edge of the outer tube when the inner tube is moved and / or twisted.
- the surgeon can thus adjust the effective length of the outer tube. This is particularly advantageous in retinal operations, in which the cutting device formed from the outer tube and the inner tube is often completely inserted into the eye.
- the sleeve is carried out in order to reach the border area of the retina, ie the back of the eye. For example, different membranes in the retina area are removed using the vitrector. For example, in the case of short-sighted patients, the length of the cutting device required for this is greater than in patients with normal vision due to the change in the “longer” eye.
- the sleeve By moving or displacing the sleeve, the effective length of the outer tube or the cutting device can be adjusted to the size of the eye. It is essential that the sleeve is arranged to be movable relative to the active part or the outer tube, but it is ensured that the sleeve is arranged sufficiently firmly, particularly during use of the vitrector, so that accidental movement or displacement is prevented.
- the material of the sleeve for example its hardness, is coordinated in such a way that the rigidity of the active part, for example a cutting device formed by an outer tube and an inner tube, can be changed or adjusted.
- a fastening area can be formed on the active part, for example on an outer tube of a vitrector, and/or on the handle, on which the sleeve is movably arranged.
- a fastening area is formed between the active part, in particular the outer tube of a vitrector, and the handle, on which the sleeve is arranged in a movable or displaceable manner.
- the fastening area serves to secure the sleeve in a positive and/or non-positive manner.
- an external thread can be formed on the fastening area and an internal thread can be formed on the sleeve. It is therefore possible to move the sleeve relative to the active part and thus bring it into the desired position by rotating the sleeve at the fastening area.
- the threaded engagement between the sleeve and the fastening area can preferably be designed in such a way that unwanted twisting and thus displacement of the sleeve during use is prevented.
- Alternative fastening options are also conceivable, for example the inner diameter of the sleeve can be smaller in the area in which the sleeve surrounds the fastening area or be equal to the outer diameter of the fastening area, so that a non-positive connection is created. In particular, this must enable the sleeve to be moved manually.
- a length scale can be formed on the fastening area. The user is therefore able to move the sleeve to a precisely defined position, so that the adjustability is significantly improved.
- the inside diameter of the sleeve can be smaller than or equal to the outside diameter of the active part, in particular the outer tube of a vitrector. This creates a positive fit that counteracts unwanted adjustment of the sleeve relative to the active part. Furthermore, it prevents contaminants from getting between the active part and the sleeve.
- the sleeve tapers conically from its end facing the handle, at least in some areas, in the direction of the free end of the active part, in particular the outer tube of a vitrector. This design measure prevents the surgeon's view from being blocked by the sleeve.
- the outer diameter of the sleeve at its end facing the handle can at least essentially correspond to the outer diameter of the end of the handle facing the sleeve.
- the surface of the sleeve thus ends with the end of the handle, so that overall a compact construction is achieved.
- the sleeve can be at least partially transparent. This has the advantage that the user's view is only slightly blocked. If a length scale is provided, it can be seen through the sleeve, which makes particularly precise adjustment possible.
- the ophthalmological handheld device according to the invention has features that can also have a procedural expression. The method according to the invention can have these features and advantages as described in the description and the claims dependent on claim 1.
- FIG. 1 is a schematic representation of an exemplary embodiment of an ophthalmological hand-held device, with the sleeve being in a position directly on the handle,
- FIG. 2 shows a further schematic representation of the ophthalmological handheld device according to FIG. 1, with the sleeve being in a position away from the handle,
- FIG. 3 shows a further schematic representation of the ophthalmological handheld device according to FIG. 1, with the sleeve being removed from the outer tube,
- Fig. 4 is a schematic, enlarged representation of the attachment area of the ophthalmological handheld device according to Fig. 1.
- FIG. 1 to 4 show a schematic representation of an exemplary embodiment of an ophthalmological hand-held device designed as a vitrector. It will It is expressly pointed out that this can also be a hand-held ophthalmological device other than a vitrector.
- the vitrector has an active part 1, which is formed by an outer tube and an inner tube, not shown in the figures.
- the outer tube 1 and the inner tube are assigned to a handle 2.
- a sleeve 3 is provided, which is arranged to be movable or displaceable in the longitudinal direction of the outer tube 1.
- the sleeve 3 In the position shown in Fig. 1, the sleeve 3 is located directly on the handle 2.
- the outer diameter of the sleeve 3 at its end facing the handle 2 corresponds to the outer diameter of the end of the handle 2 facing the sleeve 3.
- the sleeve 3 and the handle 2 is flush with each other.
- the sleeve 3 is arranged at a distance from the handle 2.
- the length of the part of the outer tube 1 protruding from the sleeve 3 is therefore reduced compared to the positioning of the sleeve 3 shown in FIG. 1.
- Fig. 4 the fastening area 4 is shown enlarged. This can, for example, be connected to the sleeve 3 via a frictional connection in that the outer diameter of the fastening area 4 is greater than or equal to the inner diameter of an area of the sleeve 3. It is also conceivable that an external thread is arranged on the fastening area 4 and a complementary internal thread is arranged on the sleeve 3. The longitudinal displacement of the sleeve 3 can therefore be carried out by rotating the sleeve 3.
- Fig. 4 clearly shows that a length scale 5 is formed on the fastening area 4. This allows the sleeve 3 to be positioned precisely.
- the vitrector according to the invention can enable removal of tissue in the rear area of the eye, in particular on the retina or retinal membranes, with different dimensions of an eye.
- the rigidity of the cutting device formed by the outer tube and the inner tube can also be adjusted by positioning the sleeve 1.
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
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022204957.8A DE102022204957A1 (de) | 2022-05-18 | 2022-05-18 | Ophthalmologisches Handgerät und Verfahren zum Einstellen eines ophthalmologischen Handgeräts |
| PCT/DE2023/200099 WO2023222170A1 (de) | 2022-05-18 | 2023-05-16 | Ophthalmologisches handgerät und verfahren zum einstellen eines ophthalmologischen handgeräts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4444236A1 true EP4444236A1 (de) | 2024-10-16 |
Family
ID=86760572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23729952.4A Pending EP4444236A1 (de) | 2022-05-18 | 2023-05-16 | Ophthalmologisches handgerät und verfahren zum einstellen eines ophthalmologischen handgeräts |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4444236A1 (de) |
| DE (1) | DE102022204957A1 (de) |
| WO (1) | WO2023222170A1 (de) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5106364A (en) | 1989-07-07 | 1992-04-21 | Kabushiki Kaisha Topcon | Surgical cutter |
| RU2092139C1 (ru) * | 1992-05-13 | 1997-10-10 | Научно-производственное объединение прикладной механики | Устройство для офтальмологических операций |
| US5474532A (en) | 1994-11-22 | 1995-12-12 | Alcon Laboratories, Inc. | Cutting blade for a vitreous cutter |
| EP1446605B1 (de) * | 2001-11-23 | 2008-09-03 | Georg Fischer Haustechnik AG | Schnellkupplung für rohre |
| NL1020964C2 (nl) * | 2002-06-28 | 2003-12-30 | Dutch Ophthalmic Res Ct B V | Snijgereedschap. |
| EP2168540B1 (de) * | 2008-09-30 | 2015-04-15 | Insight Instruments Inc. | Einziehbare Spitze für ein Vitrektomie-Instrument |
| DE102010050337A1 (de) | 2010-11-05 | 2012-05-10 | Volker Geuder | Vorrichtung zum Schneiden und Absaugen von Gewebe |
| DE102014219616A1 (de) | 2014-09-26 | 2016-03-31 | Geuder Ag | Vorrichtung zum Schneiden von Gewebe |
| US11278449B2 (en) * | 2015-09-25 | 2022-03-22 | Edwin Ryan | Dynamic support for ophthalmic device |
| DE102017010535A1 (de) | 2017-11-14 | 2019-05-16 | Uromed Kurt Drews Kg | Medizinisches Gerät zum Bewegen eines medizinischen Instruments |
| US11020270B1 (en) * | 2018-06-18 | 2021-06-01 | Gholam A. Peyman | Vitrectomy instrument and a system including the same |
| DE102019202158A1 (de) | 2019-02-18 | 2020-08-20 | Geuder Ag | Ein ophthalmologisches Handgerät sowie ein Set umfassend ein ophthalmologisches Handgerät |
| US11540941B2 (en) * | 2019-12-11 | 2023-01-03 | Alcon Inc. | Adjustable support sleeve for surgical instruments |
-
2022
- 2022-05-18 DE DE102022204957.8A patent/DE102022204957A1/de active Pending
-
2023
- 2023-05-16 WO PCT/DE2023/200099 patent/WO2023222170A1/de not_active Ceased
- 2023-05-16 EP EP23729952.4A patent/EP4444236A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022204957A1 (de) | 2023-11-23 |
| WO2023222170A1 (de) | 2023-11-23 |
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