CN220404253U

CN220404253U - Device for taking out nonmagnetic foreign matter in vitreous cavity

Info

Publication number: CN220404253U
Application number: CN202321557712.4U
Authority: CN
Inventors: 武海军; 刘晓燕; 李慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2024-01-30
Anticipated expiration: 2033-06-19

Abstract

The utility model discloses a device for taking out nonmagnetic foreign matters in a vitreous cavity, which comprises a titanium alloy handle and a handle head and is characterized in that a push button is arranged on the handle, a stainless steel conveying rod is arranged in the handle, the push button is connected with the conveying rod, an elastic annular steel wire is arranged at the end part of the conveying rod, the edge of the elastic annular steel wire is connected with nylon, the push button is a central shaft of the whole device, and the contraction and the expansion of the elastic annular steel wire and a nylon net are controlled by up-down movement. According to the extraction device disclosed by the utility model, the foreign matter is grabbed through the nylon net stretching and retracting, the foreign matter can be firmly sleeved on the net film in the foreign matter extraction process, so that the foreign matter is prevented from rolling on the net film, retinal damage is avoided, if the foreign matter is small, the foreign matter can be directly pulled out of the handle, if the foreign matter is large, the foreign matter can be pulled out of the incision of the pars plana, and the incision wound is small.

Description

Device for taking out nonmagnetic foreign matter in vitreous cavity

Technical Field

The utility model relates to the technical field of medical supplies, in particular to a withdrawing device capable of protecting the structure and the function safety of retina and ciliary body flat part.

Background

At present, the magnetic foreign matter of the vitreous body is mainly sucked out by a magnet, the non-magnetic foreign matter is mainly taken out by an intraocular forceps, if the foreign matter is too large to pass through a 25G pipeline, the pars plana is required to be cut, the foreign matter is then added by the intraocular forceps, the pars plana is easily damaged by the one-in-one-out operation, even the forceps have poor stability in the process of clamping the foreign matter, and the foreign matter rolls on the surface of the retina to damage the retina.

Disclosure of Invention

In view of the above-mentioned technical shortcomings, it is an object of the present utility model to provide a device for removing non-magnetic foreign matter from a vitreous cavity, which can remove the foreign matter rapidly and firmly, avoid damaging the retina, wrap the foreign matter with a smooth mesh, and avoid damaging the ciliary body when passing through the incision in the pars plana.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a device for taking out nonmagnetic foreign matters in a vitreous cavity, which comprises a titanium alloy handle and a handle head and is characterized in that a push button is arranged on the handle, a stainless steel conveying rod is arranged in the handle, the push button is connected with the conveying rod, an elastic annular steel wire is arranged at the end part of the conveying rod, the edge of the elastic annular steel wire is connected with nylon, the push button is a central shaft of the whole device, and the contraction and the expansion of the elastic annular steel wire and a nylon net are controlled by up-down movement.

Preferably, the handle is of 25G cylindrical configuration.

Preferably, the head end of the conveying rod is a deformable elastic steel ring, the conveying rod can be contracted into a strip shape, the conveying rod can be rapidly expanded into a round shape after being ejected, the edge of the nylon net is fixed on the steel ring, and when the foreign matter is sleeved, the conveying rod is retracted along with the steel ring, so that the foreign matter is locked in the net bag.

Preferably, the distance that the handle push button pushed is the length after the elastic steel ring is retracted into the handle and becomes rectangular, and this length control is safe, prevents the retina of mistake injury when difficult control space distance in the eyeball.

The utility model has the beneficial effects that: according to the extraction device, the foreign matter is grabbed through the nylon net stretching and retracting, the foreign matter can be firmly sleeved on the net film in the foreign matter extraction process, so that the foreign matter is prevented from rolling on the net film, retinal damage is avoided, if the foreign matter is small, the foreign matter can be directly pulled out of the handle, if the foreign matter is large, the foreign matter can be pulled out of the incision of the pars plana, and the incision wound is small; the whole process is rapid and safe, and the nonmagnetic foreign matters in the vitreous cavity are safely taken out; especially fragile foreign matters are easy to scatter during clamping, and the foreign matters are effectively prevented from scattering by the taking-out device and taken out at one time.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a device for removing nonmagnetic foreign matters from a vitreous cavity according to an embodiment of the utility model;

FIG. 2 is a schematic diagram of a device for removing nonmagnetic foreign matters from a vitreous cavity according to an embodiment of the utility model after ejection;

fig. 3 is a front view of a device for removing nonmagnetic foreign matters in a vitreous cavity according to an embodiment of the utility model.

Reference numerals illustrate: 1. push button, handle head, elastic annular steel wire, handle, nylon net and conveying rod.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment 1, as shown in fig. 1, a device for removing nonmagnetic foreign matters in a vitreous cavity comprises a titanium alloy handle 4 and a handle head 2, and is characterized in that a push button 1 is arranged on the handle 4, a stainless steel conveying rod 6 is arranged in the handle 4, the push button 1 is connected with the conveying rod 6, an elastic annular steel wire 3 is arranged at the end part of the conveying rod 6, the edge of the elastic annular steel wire 3 is connected with nylon, the push button 1 is a central shaft of the whole device, and the contraction and the expansion of the elastic annular steel wire 3 and a nylon net 5 are controlled by up-down movement.

Preferably, the handle 4 has a 25G cylindrical structure.

Preferably, the head end of the conveying rod 6 is a deformable elastic steel ring, can be contracted into a strip shape, can be rapidly expanded into a round shape after being ejected, and the edge of the nylon net 5 is fixed on the steel ring, so that when the foreign matters are sleeved, the nylon net is retracted along with the steel ring to lock the foreign matters in the net bag.

Preferably, the distance that the push button 1 of the handle 4 is pushed is the length after the elastic steel ring is retracted into the handle 4 to form a strip, and the length is controlled safely to prevent the retina from being injured by mistake when the space distance is not easy to control in the eyeball.

A pushing device is arranged in an intraocular instrument handle 4, the head end of the device is of a net structure, the edge of a net is of an elastic steel wire, the elastic steel wire is compressed in a slender handle 4 head 2, when a pushing button 1 of the handle 4 is pressed, the net structure extends out of the handle 4 head 2, when a foreign matter is sleeved, a button is moved back, the net structure can retract into the handle 4 head 2, if the foreign matter is too large, the net structure cannot fully retract, the foreign matter is clamped at the handle 4 head 2 end, and when the handle 4 is pulled out, the foreign matter is brought out of the eyeball. Therefore, the foreign matter can be firmly sleeved on the foreign matter due to the net structure in the process of taking out the foreign matter, the foreign matter is prevented from rolling on the net film, retinal damage is avoided, if the foreign matter is smaller, the foreign matter can be directly pulled out from the 25G pipeline, if the foreign matter is larger, the foreign matter can also be pulled out from the incision of the pars plana, the incision wound is also smaller, and the whole process is rapid and safe.

In fig. 2, the push button 1 in the handle 4 is connected with an elastic guide wire, the push button is pushed forward, the annular elastic steel wire is pushed out from the opening of the head end by the guide wire, and the steel wire ring is expanded into a round shape due to self elasticity and opens the connected net.

In the embodiment shown in fig. 3, the pushing device is pushed back, the annular elastic wire is retracted into the tube at the end of the head 2 of the handle 4, and the net is retracted with the foreign matter.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The utility model provides a non-magnetic foreign matter take-out device in vitreous cavity, includes titanium alloy handle and handle head, its characterized in that, be provided with push button on the handle, be provided with the transfer pole of stainless steel in the handle, push button connects the transfer pole, the tip of transfer pole is provided with the annular steel wire of elasticity, and the annular steel wire edge connection nylon of elasticity, push button is the central authorities of whole device, the shrink and the expansion of upper and lower activity control annular steel wire of elasticity and nylon wire.

2. The device for removing nonmagnetic foreign matter in a vitreous cavity according to claim 1, wherein: the handle is of a 25G cylindrical structure.

3. The device for removing nonmagnetic foreign matter in a vitreous cavity according to claim 1, wherein: the head end of the conveying rod is a deformable elastic steel ring, can be contracted into a strip shape, can be rapidly expanded into a round shape after being ejected, and the edge of the nylon net is fixed on the steel ring.

4. The device for removing nonmagnetic foreign matter in a vitreous cavity according to claim 2, wherein: the pushing distance of the handle push button is the length of the elastic steel ring which is retracted into the handle to form a strip.