WO2024052174A1 - Injektor für ein einführen einer intraokularlinse und verpackung mit dem injektor - Google Patents
Injektor für ein einführen einer intraokularlinse und verpackung mit dem injektor Download PDFInfo
- Publication number
- WO2024052174A1 WO2024052174A1 PCT/EP2023/073703 EP2023073703W WO2024052174A1 WO 2024052174 A1 WO2024052174 A1 WO 2024052174A1 EP 2023073703 W EP2023073703 W EP 2023073703W WO 2024052174 A1 WO2024052174 A1 WO 2024052174A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- injector
- insertion direction
- injector body
- state
- 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.)
- Ceased
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses or corneal implants; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1662—Instruments for inserting intraocular lenses into the eye
- A61F2/167—Instruments for inserting intraocular lenses into the eye with pushable plungers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/002—Packages specially adapted therefor, e.g. for syringes or needles, kits for diabetics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31501—Means for blocking or restricting the movement of the rod or piston
-
- 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses or corneal implants; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1691—Packages or dispensers for intraocular lenses
Definitions
- the invention relates to a packaging with an injector for inserting an intraocular lens into the capsular bag of an eye.
- US 2010/0 204 705 A1 describes an automated intraocular lens injection device.
- Cataract treatment in an eye traditionally involves making only a small incision in the eye's cornea, large enough to allow a tip of an injector to be inserted into the eye through the incision. After the incision is made in the cornea, the eye's lens is usually crushed using phacoemulsification and then suctioned out of the eye's capsular bag.
- An intraocular lens is then inserted into the eye using the injector.
- the injector is conventionally supplied in a sterile packaging, with the packaging not being opened until shortly before cataract treatment.
- the packaging must then be disposed of.
- the disadvantage is that a large amount of waste is generated.
- the object of the invention is therefore to create an injector for inserting an intraocular lens into the capsular bag of an eye and a packaging with the injector in which only a small amount of waste is generated.
- the invention relates to an injector for inserting an intraocular lens into the capsular bag of an eye.
- the injector has an injector body, a first piston and a second piston.
- the injector body has a tip with a tip opening, a proximal end facing away from the tip opening, an injector body opening facing away from the tip opening, and an insertion direction that is oriented from the proximal end to the tip opening.
- the first piston is arranged to be longitudinally displaceable in the insertion direction in the injector body and the second piston is set up to enter the injector body opening via the injector body opening Injector body to be inserted and brought into a coupling state of the first piston and the second piston, in which the first piston and the second piston are rigidly coupled to one another in the insertion direction.
- the injector has a storage state in which the second piston is arranged completely outside the injector body next to the injector body.
- a package in which the injector is to be placed in its storage state can be provided with a different surface area to volume ratio than a conventional package with a conventional injector having a one-piece piston.
- the surface area of the package may be made smaller than the surface area of the conventional package.
- the packaging and the conventional packaging can each have the shape of a cuboid, with a height of the cuboid in the insertion direction, a width of the cuboid in the first direction transverse to the insertion direction and a depth of the cuboid perpendicular to the height and perpendicular to are oriented to the width.
- the height for the conventional packaging is 5 w.E. (arbitrary units)
- the width 2 w.E. and the depth is 1 w.E.
- the height in the packaging is 3.5 w.E.
- the width is 2/0.7 ⁇ 2.86 w.E.
- the surface area of the packaging is 96% of the surface area of the conventional packaging.
- the second piston is preferably arranged next to the injector body in a first direction, which is arranged transversely to the insertion direction.
- the first piston and the second piston preferably together form a bayonet lock, by means of which the first Piston and the second piston can be brought into the coupling state.
- the second piston preferably has a projection which forms the bayonet lock. Particularly preferably, the projection projects outwards from the remaining second piston.
- the first piston preferably has a longitudinal recess which is accessible to the projection in the insertion direction.
- the first piston preferably has a transverse recess which, starting from the longitudinal end of the longitudinal recess arranged in the insertion direction, extends in a second direction transversely to the insertion direction.
- the second piston is designed so that the projection can slide in the transverse recess by a pivoting movement of the second piston relative to the first piston and around the insertion direction.
- the first piston and the second piston can form a latching mechanism by means of which the first piston and the second piston can be brought into the coupling state.
- the injector has a latch which has a locking state, in which the latch locks the position of the first piston in the insertion direction, and an unlocking state, in which the first piston is longitudinally displaceable in the injector body.
- the bolt can engage in the transverse recess in the locking state and be out of engagement with the transverse recess in the unlocking state.
- the projection is preferably designed to move the bolt out of engagement with the transverse recess by moving it in the transverse recess in the second direction transverse to the insertion direction.
- the first piston preferably has a piston cavity in which the second piston is arranged in the coupling state.
- the first piston is set up to contact the intraocular lens and by displacing the first piston in the insertion direction out of the tip opening.
- the injector has the intraocular lens disposed between the first plunger and the tip opening in the insertion direction.
- the in ector body has a receptacle that is designed to accommodate a cartridge with the intraocular lens. This allows the intraocular lens to be placed in the injector after the injector has been removed from the packaging.
- the second piston is preferably a reusable component. This can further reduce the amount of waste.
- the injector body and the first piston can each be disposable components, for example.
- the injector is arranged in the storage state of the injector.
- Figure 1 is a perspective view of a first embodiment of an injector at three different times
- Figure 2 is a perspective view of a second embodiment of the injector at two different times
- Figure 3 is a top view of a packaging with a third embodiment of the injector.
- Figures 1 to 3 show that an injector 10 for inserting an intraocular lens into the capsular bag of an eye has an injector body 11, which has a tip 14 with a tip opening 17 (see Figure 3), one of the tip opening 17 has a proximal end 18 facing away from the tip opening 17, an injector body opening 19 facing away from the tip opening 17 and an insertion direction 16 which is oriented from the proximal end 18 to the tip opening 17.
- the injector 10 has a first piston 21, which is arranged to be longitudinally displaceable in the insertion direction 16 in the injector body 11, and a second piston 22, which is set up to be inserted into the injector body 11 via the injector body opening 19 and into a coupling state of the first piston 21 and the second piston 22 to be brought, in which the first piston 21 and the second piston 22 are rigidly coupled to one another in the insertion direction 16.
- Figure 3 shows the injector 10 in a storage state of the injector 10, in which the second piston 22 is arranged completely outside the injector body 11 next to the injector body 11.
- the second piston 22 can be arranged at a distance from the injector body 11 in the storage state.
- the first piston 21 and the second piston 22 are rigidly coupled to one another in the insertion direction 16, the first piston 21 and the second piston 22 can be longitudinally displaced together.
- the storage state of the injector 10 and the coupling state of the first piston 21 and the second piston 22 are mutually exclusive.
- the second piston 22 can be arranged next to the injector body 11 in a first direction, which is arranged transversely to the insertion direction 16.
- Figure 3 shows that the injector 10 can be arranged in a packaging 1 in the storage state.
- the packaging 1 can have a base 2 which has a first recess 3 in which the injector body 11 is arranged and a second recess 4 in which the second piston 22 is arranged.
- the first depression 3 and the second depression 4 can be arranged separately from one another.
- the packaging 1 can also have a lid 5 which, together with the base 2, delimits an interior 7 of the packaging 1, the injector 10 being arranged in the interior 7.
- the base 2 and the lid 5 can contact each other in a completely circumferential sealing surface 6, so that the interior 7 is hermetically sealed.
- the lid 5 can be transparent, as shown in Figure 3, for example.
- Figure 3 shows that the second piston 22 can be arranged in the insertion direction 16 in an area in which the injector body 11 is also arranged.
- the second piston 22 can be arranged completely in a region that extends in the insertion direction 16 from the tip opening 17 to the proximal end 18.
- the injector body 11 can have a handle 15 which projects outwards from the remaining injector body 11. It is conceivable that the handle 15 at its end transverse to the insertion direction 16 and the tip opening 17 are two non-adjacent corners of an imaginary rectangle 8, the rectangle 8 being arranged within the packaging 1 and one of the sides of the rectangle 8 is arranged parallel to the insertion direction 16.
- the second piston 22 can be arranged within the rectangle 8 . This allows the packaging 1 to be designed with a particularly small surface area, which can further reduce the amount of waste.
- Figures 1 to 3 show that the first piston 21 can have a piston cavity 32, which is accessible in the insertion direction 16 for the second piston 22 and in which the second piston 22 is arranged in the coupling state.
- the first piston 21 and the second piston 22 can together form a bayonet closure 23, by means of which the first piston 21 and the second piston 22 can be brought into the coupling state.
- the second piston 22 can have a projection 24, which forms the bayonet closure 23 and protrudes outwards from the remaining second piston 22.
- the first piston 21 may have a longitudinal recess 25, which is accessible to the projection 24 in the insertion direction 16 when the second piston 22 is inserted into the piston cavity 32.
- first piston 22 can have a transverse recess 26, which extends in a second direction transversely to the insertion direction 16, starting from the longitudinal end of the longitudinal recess 25 arranged in the insertion direction 16.
- the second piston 22 In order to bring the first piston 21 and the second piston 22 into the coupling state, the second piston 22 must first be displaced longitudinally in the insertion direction 16 (compare the injector 10 according to the left drawing in Figure 1), whereby the projection 24 reaches the longitudinal recess 25. The second piston 22 must then be pivoted relative to the first piston 21, whereby the projection 24 is displaced in the transverse recess 26 (compare the injector 10 according to the middle drawing in Figure 1).
- the longitudinal recess 25 and/or the transverse recess 26 can each be a slot, for example, compare Figures 1 to 3.
- the second piston 22 can have a thumb rest 27 at its longitudinal end, which is arranged counter to the insertion direction 16 in the coupling state, which protrudes outwards from the remaining second piston 22.
- the injector 10 can have a latch 30, which has a locking state (see the left drawing in Figure 2), in which the latch 30 engages in the transverse recess 26 and thus the position of the first piston 21 locked in the insertion direction 16, and have an unlocking state (see the right drawing in FIG. 2), in which the latch 30 is out of engagement with the transverse recess 26 and thus the first piston 21 is longitudinally displaceable in the injector body 11.
- the projection 24 is set up to move the bolt 30 out of engagement with the transverse recess 26 by moving it in the transverse recess 26 in the second direction transverse to the insertion direction 16.
- the injector body 11 can be a Have bearing 31, by means of which the bolt 30 is mounted.
- the latch 31 can be pivotably mounted by means of the bearing 31, as shown in Figure 2. Alternatively, the latch 31 can be mounted so that it can be moved longitudinally.
- Figure 3 shows that the first piston 21 can be set up to contact the intraocular lens 40 and to transport it out of the tip opening 17 by displacing the first piston 29 in the insertion direction 16 and thus to transport it out of the injector 10.
- the first piston 21 can have a cushion 29, which forms the longitudinal end of the first piston 21 arranged in the insertion direction 16 and is designed to be squeezed when it reaches the tip 14.
- the first piston 21 can have a head 33, within which the piston cavity 32 is arranged.
- the first piston 21 can have a shaft 28, at the longitudinal end of which the cushion 29 is arranged in the insertion direction 16.
- the shaft 28 can have a smaller cross section in a first plane whose normal is parallel to the insertion direction 16 than a cross section of the head 33 in a second plane whose normal is parallel to the insertion direction 16 .
- the injector body 11 has an internal thread and the first piston 21 has an external thread that engages with the internal thread.
- the first piston 21 and the second piston 22 can be displaced longitudinally in the coupling state by rotating the first piston 21 and the second piston 22.
- the first piston 21 and the second piston 22 can be displaced longitudinally by simply pressing the second piston 22.
- the injector body 11 can have a cylinder 12 and a loading chamber 13, the loading chamber 13 being arranged in the insertion direction 16 between the cylinder 12 and the tip 14.
- the injector 10 can have the intraocular lens 40, which is in the loading chamber 13 and in the Insertion direction 16 is arranged between the first piston 21 and the tip opening 17.
- the intraocular lens 40 is not arranged in the injector 10, but is only inserted into the loading chamber 13 after the packaging 1 has been opened and the injector 10 has been removed from the packaging 1.
Landscapes
- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Ophthalmology & Optometry (AREA)
- Diabetes (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23764597.3A EP4583816A1 (de) | 2022-09-09 | 2023-08-29 | Injektor für ein einführen einer intraokularlinse und verpackung mit dem injektor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022122960.2A DE102022122960B3 (de) | 2022-09-09 | 2022-09-09 | Injektor mit zwei miteinander koppelbaren kolben für ein einführen einer intraokularlinse und verpackung mit dem injektor |
| DE102022122960.2 | 2022-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024052174A1 true WO2024052174A1 (de) | 2024-03-14 |
Family
ID=87929236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/073703 Ceased WO2024052174A1 (de) | 2022-09-09 | 2023-08-29 | Injektor für ein einführen einer intraokularlinse und verpackung mit dem injektor |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4583816A1 (de) |
| DE (1) | DE102022122960B3 (de) |
| WO (1) | WO2024052174A1 (de) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100204705A1 (en) | 2009-02-11 | 2010-08-12 | Kyle Brown | Automated Intraocular Lens Injector Device |
| US20160106586A1 (en) * | 2013-04-10 | 2016-04-21 | Duckworth And Kent Limited | Device For Use In Delivery of Ophthalmic Lenses |
| US20200197158A1 (en) * | 2018-12-19 | 2020-06-25 | Alcon Inc. | Iol injector having a spring-assisted iol delivery mechanism |
| WO2021154203A1 (en) * | 2020-01-27 | 2021-08-05 | Carl Zeiss Meditec Ag | Injector assembly for inserting an intraocular lens |
| DE102021116615B3 (de) * | 2021-06-28 | 2022-07-14 | Carl Zeiss Meditec Ag | Injektor mit einem ersten Kolben und einem zweiten Kolben |
-
2022
- 2022-09-09 DE DE102022122960.2A patent/DE102022122960B3/de active Active
-
2023
- 2023-08-29 EP EP23764597.3A patent/EP4583816A1/de active Pending
- 2023-08-29 WO PCT/EP2023/073703 patent/WO2024052174A1/de not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100204705A1 (en) | 2009-02-11 | 2010-08-12 | Kyle Brown | Automated Intraocular Lens Injector Device |
| US20160106586A1 (en) * | 2013-04-10 | 2016-04-21 | Duckworth And Kent Limited | Device For Use In Delivery of Ophthalmic Lenses |
| US20200197158A1 (en) * | 2018-12-19 | 2020-06-25 | Alcon Inc. | Iol injector having a spring-assisted iol delivery mechanism |
| WO2021154203A1 (en) * | 2020-01-27 | 2021-08-05 | Carl Zeiss Meditec Ag | Injector assembly for inserting an intraocular lens |
| DE102021116615B3 (de) * | 2021-06-28 | 2022-07-14 | Carl Zeiss Meditec Ag | Injektor mit einem ersten Kolben und einem zweiten Kolben |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022122960B3 (de) | 2023-10-26 |
| EP4583816A1 (de) | 2025-07-16 |
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