CN211023472U

CN211023472U - Optical fiber flute needle

Info

Publication number: CN211023472U
Application number: CN201921558321.8U
Authority: CN
Inventors: 吴苗琴; 章露易; 郦晓霞
Original assignee: Zhejiang Provincial Peoples Hospital
Current assignee: Zhejiang Provincial Peoples Hospital
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-07-17
Anticipated expiration: 2029-09-18

Abstract

The utility model discloses an optical fiber flute needle, which comprises a flute needle main body and a needle head arranged at the front end of the flute needle main body, wherein an air bag is arranged on the flute needle main body; one end of the hose axially penetrates through the cartesian needle main body to be connected with the needle head, the other end of the hose is connected with the light beam sleeve, and the lighting mechanism extends to the end part of the needle head. The utility model discloses at the illumination of the built-in optic fibre of flute needle, the interior boundary film that tears off in the patient line of macular hole covers or packs the operation and can carry out complete gas-liquid exchange simultaneously in good illumination with the help of an operation incision, and its aversion of fixed prevention and cure of boundary film graft in another incision can be used for the supplementary interior boundary film graft of intraocular appliances to the success rate that the boundary film transplanted in the increase.

Description

Optical fiber flute needle

Technical Field

The utility model relates to a vitreous cavity operation apparatus technical field, concretely relates to optic fibre flute needle.

Background

The vitreous body minimally invasive surgery is a main surgical method for treating posterior segment diseases of ophthalmology, and with the continuous improvement of vitreous body cutting surgical equipment and technology, more and more difficult cases receive the minimally invasive vitreous body cutting surgery, wherein the most popular vitreous body cutting surgery of 23G is developed.

Firstly, the yellow fissure foramen operation is one of the finest operations in the minimally invasive vitrectomy, the current operation mode with more definite curative effect in the yellow fissure foramen operation is the inner limiting membrane tearing and removing combined inner limiting membrane transplantation, but the transplanted inner limiting membrane graft is exposed to the risk of being sucked away by a cartesian needle during gas-liquid exchange, so that the operation fails.

Secondly, in the minimally invasive vitrectomy, many patients with complicated eye conditions have to select a vitreous cavity filled with silicone oil due to the condition, and the patients are exposed to the problem of taking out the silicone oil again after 3-6 months. For the vitreous cavity silicone oil extraction operation, a 3-channel sclera incision can be adopted as an operation incision, but a 2-channel sclera puncture incision is usually adopted clinically for reducing operation trauma, an infusion tube is usually placed by using Trocar puncture 3-4mm behind the corneal limbus below the temples, and an oil extraction tube is placed by using Trocar puncture 3-4mm behind the corneal limbus above the temples. The oil extraction method is characterized in that a 23G oil extraction needle head is connected to an oil extraction Trocar for vacuum oil extraction by a glass cutting machine, the method is slow in pumping speed, and the oil injection needle head is thin and short, so that oil droplets can easily escape from an oil extraction needle hole due to vortex generated by intraocular perfusate in the last stage of silicone oil extraction, and can not be easily removed due to rotation along with liquid flow in a glass cavity; the second method is to move out the Trocar sleeve, select a 20G indwelling soft needle head, trim the proper length as required, and adjust the direction of the oil taking pipe mouth according to the position of the oil bubble to avoid the oil bubble escaping when the oil taking is close to the tail sound. In any method, emulsified silicone oil droplets are remained in eyes after oil extraction, and a mode of partial gas-liquid exchange is generally used for replacing the silicone oil droplets remained in a vitreous cavity as much as possible clinically. Because 2 passageway sclera incisions get when oil, one is placed the filling tube and is used for the intraocular infusion, and another uses the flute needle to carry out partial gas-liquid exchange, because do not have lighting device, can't see the condition in the vitreous body intracavity clearly, leads to the gas-liquid exchange operation to have the blindness, moreover because can only partial gas-liquid exchange at every turn, leads to emulsified silica oil droplet to remain too much, influences the operation curative effect.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides an optical fiber flute needle, which is internally provided with optical fiber illumination, after the inner limiting membrane of a patient suffering from macular hole operation is covered or plugged, complete gas-liquid exchange can be simultaneously carried out under good illumination by means of one operation incision, and the other incision can be used for assisting in fixing the inner limiting membrane implant by an intraocular instrument to prevent the displacement of the inner limiting membrane implant, thereby increasing the success rate of the inner limiting membrane implant; and in the operation of taking out the silicone oil, complete gas-liquid exchange can be carried out simultaneously with good illumination by only one operation incision, so that emulsified oil drops are thoroughly replaced, the operation time is shortened, the operation wound is reduced, the inflammatory reaction after the operation of the affected eye is relieved, and the operation curative effect is improved.

In order to achieve the above object, the utility model adopts the following technical scheme:

an optical fiber cartesian needle comprises a cartesian needle body, a needle head arranged at the front end of the cartesian needle body, an air bag arranged on the cartesian needle body, a hose, an illumination mechanism arranged in the hose and a light beam sleeve connected with the illumination mechanism; one end of the hose axially penetrates through the cartesian needle main body to be connected with the needle head, the other end of the hose is connected with the light beam sleeve, and the lighting mechanism extends to the end part of the needle head.

Further, the illumination mechanism is an optical fiber.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model integrates the optical fiber lighting into the flute needle, complete gas-liquid exchange can be simultaneously carried out on the inner limiting membrane covering or filling operation of a patient suffering from macular hole under good lighting by means of one operation incision, and the other incision can be used for assisting the fixing of the inner limiting membrane implant by an intraocular instrument to prevent the displacement of the inner limiting membrane implant, thereby increasing the success rate of the inner limiting membrane transplantation; take out the operation at silicone oil then compare with 3 passageway incisions of traditional sclera and can reduce an operation incision, only need 2 operation incisions just can carry out thorough gas-liquid exchange replacement emulsion oil and drip: one incision is used for filling liquid, and the other surgical incision is used for completely exchanging gas and liquid while having good illumination so as to completely replace emulsified oil drops; because of good illumination, the controllability and the safety of the intraocular operation are improved, and the frequency required by partial gas-liquid exchange in the traditional sclera 2 channel incision mode is reduced, the operation time is greatly shortened, the operation wound is reduced, the inflammatory reaction after the operation of the affected eye is lightened, and the operation curative effect is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a sectional view of the main structure of the cartesian needle according to the embodiment of the present invention.

Fig. 3 is a sectional view of the needle structure according to the embodiment of the present invention.

Wherein, the names corresponding to the reference numbers are:

1-needle head, 2-cartesian needle body, 3-flexible tube, 4-beam sleeve, 5-air bag and 6-optical fiber.

Detailed Description

To make the objectives, technical solutions and advantages of the present application more clear, the present invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples.

Examples

As shown in fig. 1 to 3, in the present embodiment, a fiber cartesian needle is provided, and it should be noted that the terms of "first", "second", "third", and the like in the present embodiment are only used for distinguishing similar components, and are not to be understood as a specific limitation to the protection scope. In addition, the terms of orientation such as "bottom", "top", "side edges", and the like in the present embodiment are explained based on the drawings.

The optical fiber cartesian needle comprises a cartesian needle body 2, a needle head 1 arranged at the front end of the cartesian needle body 2, an air bag 5 arranged on the cartesian needle body 2, a hose 3, a lighting mechanism arranged in the hose 3 and a light beam sleeve 4 connected with the lighting mechanism, wherein one end of the hose 3 axially penetrates through the cartesian needle body 2 to be connected with the needle head 1, the other end of the hose is connected with the light beam sleeve 4, the lighting mechanism extends to the end part of the needle head 1, the lighting mechanism is an optical fiber, the optical fiber is finely dispersed in the needle head 1 and attached to the inner wall of the needle head 1, a gap is reserved for water flow to pass through, a plurality of optical fibers are gathered and bundled at the part where the needle head 1 is connected with the cartesian needle body 2, the gap also exists, water flow can enter the hose 3 through the gap, the hose 3 is connected with the air bag 5 in the cartesian needle body 2, the air bag 5 is provided with an opening, air pressure in the hose 3 is controlled through the opening to generate siphon clear liquid, the light beam sleeve 4 is used for connecting a light source to illuminate, the existing 23G light guide sleeve 4 is provided with a traditional light guide L, and light beams can pass through the light.

The utility model discloses combine original 23G flute needle and 23G illumination leaded light optic fibre, embed optic fibre in the hose, flute needle syringe needle diameter increases slightly and penetrates its interior space that does not influence its liquid flow in it in order to guarantee optic fibre, is greater than 23G and is less than 20G to increase flute needle syringe needle lumen space, influence flute needle siphon effect after avoiding putting into optic fibre, can implant this optic fibre flute needle smoothly as long as remove 23GTrocar sleeve pipe during the use in 23G minimal access vitreous cutting operation, the utility model discloses a flute needle main part and syringe needle are unanimous with current structure, no longer the repeated description one by one.

In the process of gas-liquid exchange of the minimally invasive vitreous body cutting operation, the optical fiber cartesian needle can be used for clearly observing the structure of the eyeground through the wide-angle lens image inverting device; the optical fiber cartesian needle can be sterilized by ethylene oxide and can be reused.

The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the protection scope of the present invention, but all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention, the technical problems solved by the embodiment are still consistent with the present invention, and all should be included in the protection scope of the present invention.

Claims

1. The utility model provides an optic fibre cartesian needle, includes the cartesian needle main part, sets up the syringe needle of cartesian needle main part front end, be provided with gasbag, its characterized in that in the cartesian needle main part: the optical fiber cartesian needle further comprises a hose, an illumination mechanism arranged in the hose and a light beam sleeve connected with the illumination mechanism; one end of the hose axially penetrates through the cartesian needle main body to be connected with the needle head, the other end of the hose is connected with the light beam sleeve, and the lighting mechanism extends to the end part of the needle head.

2. The fiber optic cartesian needle of claim 1, wherein: the illumination mechanism is an optical fiber.