CN221672279U - Intraocular lens extraction sleeve - Google Patents

Abstract

The utility model discloses an intraocular lens extraction sleeve, which comprises the following components in sequence: a first pipe section: one end is an inclined opening formed along the length direction, and the other end is connected with the transition pipe section; transition pipe section: one end of the first pipe section is connected with the first pipe section, the other end is connected with a second pipe section; the diameter of the transition pipe section gradually increases from the first pipe section to the second pipe section; and (2) a second pipe section: the outside is provided with a holding piece which is convenient to hold. The utility model can be used together with conventional intraocular forceps or ICL crystal traction forceps. The intraocular lens is curled and folded to change the diameter when being pulled through, and smoothly passes through a cornea incision with a conventional size; the folded intraocular lens is taken out through the sleeve, so that the intraocular lens can be prevented from deflecting or rolling in the eye to contact and damage the tissues in the eye; the holding piece is convenient for two-hand operation and fixation, ensures the safety and stability of the intraocular lens extraction process, and reduces the occurrence of complications.

Description

An artificial lens removal sleeve

Technical Field

The utility model relates to ophthalmic surgery auxiliary equipment, in particular to an artificial lens removal sleeve.

Background Art

In cataract surgery, after the cloudy lens is removed by phacoemulsification, a foldable intraocular lens is implanted through a tiny corneal incision as the main treatment method to restore vision. When an accident occurs during or after surgery and the intraocular lens must be removed or replaced, the current methods include: 1. Enlarging the corneal incision and removing the unfolded intraocular lens. This method is more traumatic, and the large corneal incision needs to be sutured, which can easily cause greater postoperative astigmatism; the corneal sutures need to be removed after several months, and the recovery time is longer; 2. Cut the intraocular lens and then remove the fragments/pieces one by one. The intraocular lens cutting operation in the narrow intraocular space not only requires special surgical instruments, but also takes time to operate, requires high surgical skills, and is easy to damage the intraocular iris, posterior lens capsule, corneal endothelium and other tissues, leading to complications such as intraocular hemorrhage, inflammatory reaction, vitreous prolapse, retinal detachment, corneal endothelial decompensation, etc., affecting postoperative vision and even causing eyeball atrophy.

Therefore, there is an urgent need for a tool that can completely remove the intraocular lens from a smaller corneal incision.

Utility Model Content

The utility model aims to solve one of the technical problems in the above technology at least to a certain extent. To this end, the purpose of the utility model is to provide a sleeve that is inserted into the corneal incision and the intraocular lens is curled and taken out from the sleeve with a clamp.

To achieve the above-mentioned purpose, the embodiment of the utility model provides an intraocular lens removal sleeve, comprising:

The first pipe section: one end is an oblique opening formed along the length direction, and the other end is connected to the transition pipe section;

Transition pipe section: one end of which is connected to the first pipe section, and the other end of which is connected to the second pipe section; the diameter of the transition pipe section gradually increases from the first pipe section to the second pipe section;

The second pipe section: a gripping piece is provided on the outside for easy holding.

An intraocular lens removal sleeve according to an embodiment of the utility model has at least the following beneficial effects:

1. It can be used with conventional intraocular forceps or ICL lens traction forceps. When the artificial lens is pulled through, it curls and folds, changing its diameter, and can pass smoothly through the corneal incision of conventional size;

2. The head of the cannula is embedded in the corneal incision, and the folded intraocular lens is taken out through the cannula, which can prevent the intraocular lens from deflecting or rolling in the eye and contacting and damaging the intraocular tissue;

3. The grip is convenient for two-handed operation and fixation, ensuring the safety and stability of the intraocular lens removal process and reducing the occurrence of complications.

In addition, the intraocular lens removal sleeve according to the above embodiment of the utility model may also have the following additional technical features:

Optionally, the cross-sections of the first pipe segment and the second pipe segment are circular.

Optionally, the first pipe section has an oblique end closer to the transition pipe section, forming a V-shaped notch along the length direction.

Optionally, the cross-section of the transition pipe section is a frustum.

Optionally, the gripping piece has a T-shaped cross-section, and there is at least one gripping piece.

Optionally, the first pipe segment, the transition pipe segment, the second pipe segment and the holding piece are integrally formed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a structural perspective view according to an embodiment of the utility model;

FIG2 is a rear view according to an embodiment of the utility model;

FIG3 is a diagram showing a use process according to an embodiment of the present invention;

FIG. 4 is a second diagram of the use process according to an embodiment of the utility model.

Description of labels:

First pipe section 1 oblique opening 11 V-shaped notch 12

Transition pipe section 2

The second pipe section 3 holding piece 31

Intraocular lens optical part 100 , intraocular lens haptic 200 , iris 300 , intraocular forceps 400 .

DETAILED DESCRIPTION

The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

The first tube section of the utility model is inserted into the corneal incision close to the artificial lens, and the intraocular forceps extend from the tube to clamp the artificial lens, and drag it from the inside of the eye to the outside, and it curls when passing through the first tube section, thereby compressing the diameter of the artificial lens so that it can pass through a smaller corneal incision.

In order to better understand the above technical solution, the exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

As described in the background art, when the intraocular lens needs to be removed, it has already been unfolded and its size is much larger than when it was inserted. Therefore, it can only be removed in batches by enlarging the corneal incision or cutting it into pieces at the location, thus creating additional surgical risks.

FIG. 1 to FIG. 4 are diagrams of an intraocular lens removal sleeve according to an embodiment of the present utility model, comprising:

The first pipe segment 1: one end is an oblique opening 11 formed along the length direction, and the other end is connected to the transition pipe segment 2; the first pipe segment 1 needs to enter and exit the eye through a conventional phacoemulsification surgical incision, so the diameter is 1-3.5mm, and the length is 0.5-1cm, which is adjusted according to different clinical application needs. The role of the oblique opening 11 is to better guide the entry into the incision. Optionally, the first pipe segment 1, the oblique opening 11 is closer to the position of the transition pipe segment 2, and a V-shaped notch 12 is formed along the length direction. The length of the V-shaped notch on the oblique opening 11 is 1-3mm. The length of the transition pipe segment 2 should be 0.5-1cm. The V-shaped notch 12 allows the flattened artificial lens to effectively curl when passing through, which has a better effect.

Transition pipe section 2: one end is connected to the first pipe section 1, and the other end is connected to the second pipe section 3; the diameter of the transition pipe section 2 gradually increases from the first pipe section 1 to the second pipe section 3; optionally, the cross-section of the transition pipe section 2 is a truncated cone.

The second pipe section 3: a gripping piece 31 is provided on the outside for easy gripping. The size range of the second pipe section 3 is preferably 3-10 mm in diameter and 0.5-1 cm in length. Optionally, the gripping piece 31 is a T-shaped cross section, and there is at least one gripping piece 31. The size range of the gripping piece 31 is 0.5-1 cm in length and 0.5-1 cm in height.

The overall length of the utility model is preferably within the range of 1-3 cm.

Optionally, the cross-sections of the first pipe section 1 and the second pipe section 3 are circular.

Optionally, the first pipe section 1, the transition pipe section 2, the second pipe section 3 and the gripping member 31 are integrally formed. The utility model needs to be made light and strong, so it can be integrally formed using medical plastic material.

A preferred example of using the utility model under a surgical microscope is shown in Figures 3 and 4. The patient lies in a supine position, and after dripping topical anesthetic, the upper and lower eyelids are opened with a lid opener to expose the cornea. The operator makes a corneal incision of about 2 mm in length, guides the first tube segment 1 of the utility model into the eye, and fixes it with the left hand holding the grip 31. Insert the intraocular forceps 400 or ICL lens traction forceps into the tube to clamp the artificial lens and pull it close to the oblique opening 11. Use both hands to pull the artificial lens to curl and fold it, and enter the transition tube segment 2 and the second tube segment 3 through the first tube segment 1. Withdraw from the corneal incision and completely remove the artificial lens.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims (6)

1. An intraocular lens removal cannula comprising, in order:

A first pipe section: one end is an inclined opening formed along the length direction, and the other end is connected with the transition pipe section;

Transition pipe section: one end of the first pipe section is connected with the first pipe section, the other end is connected with a second pipe section; the diameter of the transition pipe section gradually increases from the first pipe section to the second pipe section;

And (2) a second pipe section: the outside is provided with a holding piece which is convenient to hold.

2. An intraocular lens removal cannula according to claim 1, wherein: the sections of the first pipe section and the second pipe section are circular.

3. An intraocular lens removal cannula according to claim 1, wherein: the first pipe section, the bevel connection is closer to the position of transition pipe section, forms V type breach along length direction.

4. An intraocular lens removal cannula according to claim 1, wherein: the cross section of the transition pipe section is a round table.

5. An intraocular lens removal cannula according to claim 1, wherein: the holding piece is of a T-shaped section, and at least one holding piece is arranged.

6. An intraocular lens removal cannula according to claim 1, wherein: the first pipe section, the transition pipe section, the second pipe section and the holding piece are integrally formed.