CN213190525U

CN213190525U - A mesh basket device for removing intraocular foreign bodies

Info

Publication number: CN213190525U
Application number: CN202020545131.9U
Authority: CN
Inventors: 闫泉; 孙晓东; 汪枫桦; 王�泓; 刘海芸
Original assignee: Shanghai First Peoples Hospital
Current assignee: Shanghai First Peoples Hospital
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2021-05-14
Anticipated expiration: 2030-04-14

Abstract

The utility model discloses a basket device for intraocular foreign matter takes out, it contains: the device comprises a basket structure, a sleeve, a switch assembly and a handle; the basket structure is formed by crossing at least two elastic wires, fixing the elastic wires at the crossing points, and bundling the movable ends of the elastic wires to form a bundling section; the sleeve is sleeved outside the bundling section and positioned between the basket structure and the switch assembly; the switch assembly includes: the sliding device comprises a sliding rail arranged on the handle, two clamping grooves respectively arranged at two ends of the sliding rail and sliding fasteners correspondingly matched with the clamping grooves; the sliding fastener is connected with the bundling section, and the expansion and contraction of the net basket structure are controlled by forward or backward thrust applied to the bundling section by the sliding fastener. The utility model provides a basket device, the one-hand operation of being convenient for, basket size is adjustable, easily snatchs the foreign matter, tightens up the back, and the foreign matter is also difficult for droing when deviating from through the sclera incision. The utility model is particularly suitable for taking out the foreign body which is difficult to be grabbed by the conventional apparatus from the eye, and is suitable for most vitreous body operation incisions.

Description

Basket device for taking out foreign matters in eyes

Technical Field

The utility model belongs to the field of medical equipment, a basket of net device that is used for intraocular foreign matter to take out is related to.

Background

Eye trauma is common in clinic, and external objects penetrate through cornea and sclera to enter eyes under high-speed movement, which can cause perforation injury of eyeballs and foreign bodies in eyes and is an ophthalmic emergency needing urgent treatment. After the foreign body enters the eye, the degree of damage to the eyeball is greatly related to the type, property, size and position of the foreign body entering the eye. If the foreign body in the eye is not taken out in time, endophthalmitis, eyeball atrophy and even removal of the eyeball can be caused, so that the foreign body entering the eye needs to be taken out through an emergency operation.

At present, intraocular foreign body extracting devices commonly used in ophthalmic surgery include intraocular foreign body forceps, electromagnets, magnetic rods, and the like. The forceps for foreign bodies in eyes usually have two or three claws, the opening is small, the smooth and irregular foreign bodies are difficult to grasp, and electromagnets, magnetic rods and the like can only absorb magnetic metal foreign bodies, and the effect is closely related to the positions of the foreign bodies entering the eyes. These deficiencies often result in increased difficulty, increased length of time, and increased trauma to the operation when the foreign body is removed; sometimes, the foreign body can not be taken out after a plurality of attempts in the first operation, and the incision has to be closed to wait for the second operation, thereby increasing the risk of intraocular infection.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the foreign matter of non-magnetic irregular shape is difficult to take out in the eye, if the problem that is difficult to snatch or easy landing provides a basket device that can control the space size in a flexible way, can conveniently take out the foreign matter in the eye, avoids the intraocular infection, second phase operation even.

In order to achieve the above object, the present invention provides a basket device for removing foreign matters from eyes, comprising: the device comprises a basket structure, a sleeve, a switch assembly and a handle;

the net basket structure is positioned at the far end, at least two elastic wires are arranged in a crossed mode, the elastic wires are fixed at the crossed point, and the movable ends of the elastic wires are bundled to form a bundling section;

the sleeve is sleeved outside the bundling section and positioned between the basket structure and the switch assembly;

the switch assembly comprises: the sliding device comprises a sliding rail arranged on the handle, two clamping grooves respectively arranged at two ends of the sliding rail and a sliding fastener correspondingly matched with the clamping grooves; the sliding fastener is connected with the bundling section, and the expansion and contraction of the net basket structure are controlled by forward or backward thrust applied to the bundling section by the sliding fastener;

the far end refers to the end far away from the operator.

Preferably, the basket structure is composed of 4 elastic wires.

Preferably, the diameter of the basket structure is at most 12 mm.

Preferably, the diameter of the sleeve is 0.5 mm-0.7 mm.

Preferably, the switch assembly comprises: and the clamping grooves are uniformly arranged between the two clamping grooves at intervals.

Preferably, the switch assembly is located at the distal end of the handle.

Preferably, the handle is further provided with an anti-skid holding part.

The utility model has the advantages that:

1. the cannula may be 23 gauge or 25 gauge in diameter, suitable for most vitreous surgical incisions today.

2. The switch assembly is positioned at the front part of the handle, and can be easily pushed forwards, pushed backwards and the like by a thumb, so that the doctor can operate the switch assembly by one hand.

3. The basket is flexible and adjustable in size, foreign bodies can be firmly sleeved after being tightened, and the foreign bodies are not easy to fall off when the basket is separated from the sclera incision. Is particularly suitable for taking out foreign matters which are difficult to grasp by conventional instruments with smooth, spherical and irregular surfaces.

Drawings

Fig. 1 is a schematic view showing a basket extending state of the basket device for removing intraocular foreign matter according to the present invention.

Fig. 2 is a schematic view showing a basket retrieving state of the basket device for removing the foreign matters from the eyes of the present invention.

Description of reference numerals:

basket structure 10

Elastic wire 11

Intersection 12

Bundling section 13

Sleeve 20

Slide fastener 31

A handle 40.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "front", "back", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, a basket device for intraocular foreign body extraction, comprising: basket structure 10, sleeve 20, switch assembly and handle 40.

The basket structure 10 is located at the far end (i.e. the head of the device), and is formed by intersecting at least two elastic wires 11, and fixing the elastic wires 11 at an intersection point 12, and the movable ends of the elastic wires are bundled to form a bundling section 13. In the embodiment, two metal elastic wires 11 are adopted, the central points of the elastic wires are crossed and fixedly connected, the four elastic wires are bent, and the tail ends of the four elastic wires are converged into a bundling section 13. In order to control the size of the mesh basket gap, the mesh basket structure 10 may also be formed by a plurality of elastic wires, for example, 4 elastic wires, the center points of which are arranged in a cross. The far end refers to the end far away from the operator.

The sleeve 20 is sleeved outside the bundling section 13 and is located between the basket structure 10 and the switch assembly. The cannula 20 has a diameter of 0.5mm to 0.7mm (this diameter refers to the outer diameter, and the cannula is very thin), and in some embodiments, the cannula has a diameter of 0.63mm (about 23G), which allows smooth passage through the 23G scleral puncture of the eye. In some embodiments, the cannula has a diameter of 0.53mm and can pass through a 25G scleral puncture of the eye smoothly.

The switch assembly comprises: a sliding rail (not shown) arranged on the handle, two clamping grooves (not shown) respectively arranged at two ends of the sliding rail and a sliding fastener 31 correspondingly matched with the clamping grooves; the sliding fastener 31 is connected with the bundling section 13, and the expansion and contraction of the basket structure 10 are controlled by the forward or backward pushing force applied to the bundling section 13 by the sliding fastener 31. The two clamping grooves are respectively arranged at the position where the basket structure retracts into the sleeve (namely, the basket retracting position) and the position where the basket structure extends out and expands to the maximum. The diameter of the basket structure 10 when expanded to its maximum is 12 mm. The diameter is the transverse diameter perpendicular to the bundling section, and the longitudinal diameter is the length from the cross point to the bundling section.

In order to take out foreign matters with different sizes, a plurality of clamping grooves can be arranged on the sliding rail, namely, at least one clamping groove is arranged between the two clamping grooves at intervals, preferably at even intervals.

To facilitate one-handed operation, the switch assembly is located at the distal end of the handle 40, i.e., the front of the handle, here forward of the basket structure and rearward of the handle.

In order to facilitate accurate operation of an operator, the handle can be further provided with a plurality of anti-skidding holding parts (not shown), such as a frosted surface and the like.

The utility model discloses a method of use of basket device as follows:

1. firstly, the sliding fastener of the switch component retracts to the net basket retracting position, as shown in figure 2;

2. the cannula is inserted into the foreign body position in the eye to be taken out through the sclera puncture of the eyeball;

3. the sliding fastener is pushed forwards to extend out of the basket, the opening amplitude of the basket is adjusted according to the size of the foreign matters in the eyes, and the sliding fastener is fastened on the clamping groove at the corresponding position, as shown in figure 1;

4. after the foreign body is sleeved by using the basket, the sliding fastener is pushed, the basket is contracted to tightly sleeve the foreign body, and the foreign body is retracted into the sleeve;

5. the cannula is withdrawn through the scleral puncture and the foreign body is removed.

In conclusion, the gap size of the basket is conveniently controlled through the arrangement of the switch assembly, so that the basket is convenient to sleeve foreign bodies, the basket is tightened and retracted into the sleeve, the foreign bodies can be effectively prevented from sliding, and the basket is convenient to take out.

While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims

1. A basket apparatus for intraocular foreign body retrieval, the apparatus comprising: the device comprises a basket structure, a sleeve, a switch assembly and a handle;

the far end refers to the end far away from the operator;

the diameter of the sleeve is 0.5 mm-0.7 mm.

2. The basket apparatus for intraocular foreign body retrieval of claim 1, wherein the basket structure is comprised of 4 elastic filaments.

3. The basket apparatus for intraocular foreign body extraction of claim 1 wherein the basket structure has a diameter of up to 12 mm.

4. The basket apparatus for intraocular foreign object retrieval of claim 1, wherein said switch assembly comprises: and the clamping grooves are uniformly arranged between the two clamping grooves at intervals.

5. The basket apparatus for intraocular foreign body extraction of claim 1 wherein the switch assembly is located at the distal end of the handle.

6. The basket apparatus for intraocular foreign body retrieval of claim 1, wherein said handle is further provided with a non-slip grip.