CN112773600A

CN112773600A - Vitreous cutting head

Info

Publication number: CN112773600A
Application number: CN202011600328.9A
Authority: CN
Inventors: 何俊文; 吴建华
Original assignee: Wuhan Aier Eye Hospital Co Ltd
Current assignee: Wuhan Aier Eye Hospital Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-05-11

Abstract

The invention provides a vitreous body cutting head, which comprises a shell, a laser fiber, a fiber laser, a laser controller and an aspirator, wherein the shell is provided with a plurality of laser fibers; the shell is provided with an inner cavity, an opening is formed in the head end of the shell, the laser fiber extends into the shell and is connected with the laser controller, the laser controller is connected with the fiber laser, the aspirator is communicated with the interior of the shell, and the fiber laser emits femtosecond laser and irradiates the head end of the shell through the laser fiber; the design of a metal mechanical cutter head is not adopted any more, the abrasion of the metal mechanical cutter head is avoided, the suction device can cut the cut tissue and foreign matters into pieces and suck the pieces out to avoid the blockage of the drainage tube, and the cutting mode of femtosecond laser is adopted, so that the tissue or the foreign matters with higher hardness in the eye can be cut.

Description

Vitreous cutting head

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of medical instruments, in particular to a vitreous body cutting head.

[ background of the invention ]

Traditional vitreous cutting head drives metal machinery tool bit vibration cutting intraocular tissue back and forth through the passageway of two gases, but can have following problem: 1. the metal mechanical cutter head of the vitreous cutting head can cut harder substances, for example, the cutting lens can cause the abrasion of a knife edge, so that one vitreous cutting head can not completely complete one operation; 2. the intraocular tissue mass cut by the metal mechanical cutter head of the vitreous body cutting head is large, which is easy to cause unstable pressure of the outflow channel and even cause the possibility of blocking the outflow channel; 3. when the foreign body or the artificial lens is dislocated due to trauma, the incision of the eyeball needs to be enlarged when the foreign body or the artificial lens is taken out, which causes more tissue damage and serious complication probability.

In view of the above, it is desirable to provide a new vitreous cutting head that overcomes the above-mentioned drawbacks.

[ summary of the invention ]

The invention aims to provide a vitreous body cutting head, which does not adopt the design of a metal mechanical cutter head, avoids the occurrence of the abrasion of the metal mechanical cutter head, can cut the cut tissue and foreign bodies into fragments and suck the fragments out to avoid the blockage of a drainage tube due to the design of a suction apparatus, and can cut the tissue or the foreign bodies with higher hardness in eyes due to the adoption of a femtosecond laser cutting mode.

In order to achieve the above object, the present invention provides a vitreous cutting head comprising a housing 1, a laser fiber 2, a fiber laser 3, a laser controller 4 and an aspirator 5; the shell 1 is provided with an inner cavity, an opening 11 is formed in the head end 10 of the shell 1, the laser fiber 2 extends into the shell 1 and is connected with the laser controller 4, the laser controller 4 is connected with the fiber laser 3, the aspirator 5 is communicated with the inside of the shell 1, and the fiber laser 3 emits femtosecond laser and irradiates the head end 10 of the shell 1 through the laser fiber 2.

Preferably, the fiber laser 3 emits radiation to form a femtosecond laser action region 101 on the inner wall of the head end 10 of the housing 1.

Preferably, the housing 1 is integrally formed, and includes a handle portion 12 and an extending portion 13 connected to the handle portion 12, and the opening 11 is opened in the extending portion 13.

Preferably, the housing 1 is integrally formed, and includes a handle portion 12 and a bent extending portion 13 connected to the handle portion 12, and the opening 11 is opened in the extending portion 13.

Preferably, the outer wall of the head end 10 of the protruding part 13 is formed with a rounded chamfer.

Preferably, the laser fiber 2 extends from the handle portion 12 into the inner cavity of the extending portion 13, and the laser controller 4 is connected to an end of the laser fiber 2 away from the opening 11.

Preferably, a foot switch 51 is arranged on the aspirator 5, and the foot switch 51 is electrically connected with the laser controller 4.

Preferably, the vitreous body cutting head further comprises a drainage tube 6, one end of the drainage tube 6 extends into the inner cavity of the shell 1, and the other end of the drainage tube 6 is connected with the aspirator 5.

Compared with the prior art, the vitreous cutting head provided by the invention has the beneficial effects that:

1) the design of the metal mechanical tool bit is not adopted, so that the abrasion of the metal mechanical tool bit is avoided;

2) the suction apparatus is designed to cut the cut tissue and foreign bodies into pieces to be sucked out, so that the blockage of the drainage tube is avoided;

3) due to the adoption of the femtosecond laser cutting mode, tissues or foreign bodies with higher hardness in the eye can be cut.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a vitreous cutting head according to the present invention.

Fig. 2 is a schematic structural view of another embodiment of the vitreous cutting head provided by the present invention.

Fig. 3 is an enlarged view of the region a shown in fig. 2.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and are therefore not to be considered limiting.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. To those of ordinary skill in the art, the above terms may be specifically defined in the present invention according to the specific circumstances.

Furthermore, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", may explicitly or implicitly include one or more of that feature. Further, the meaning of "a plurality" or "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3, the present invention provides a vitreous cutting head, which includes a housing 1, a laser fiber 2, a fiber laser 3, a laser controller 4 and an aspirator 5; the shell 1 is provided with an inner cavity, an opening 11 is formed in the head end 10 of the shell 1, the laser fiber 2 extends into the shell 1 and is connected with the laser controller 4, the laser controller 4 is connected with the fiber laser 3, the aspirator 5 is communicated with the inside of the shell 1, and the fiber laser 3 emits femtosecond laser and irradiates the inner wall of the head end 10 of the shell 1 through the laser fiber 2 to form a femtosecond laser action area 101.

Further, the housing 1 is integrally formed, and includes a handle portion 12 and an extending portion 13 connected to the handle portion 12, the opening 11 is opened on the extending portion 13, and the femtosecond laser action region 101 is formed on an inner wall of the head end 10 of the extending portion 13 of the housing 1.

In another embodiment, the housing 1 is integrally formed, and includes a handle portion 12 and a bent protruding portion 13 connected to the handle portion 12, the opening 11 is opened on the protruding portion 13, and the femtosecond laser active region 101 is formed on an inner wall of the head end 10 of the protruding portion 13 of the housing 1.

Further, an arc chamfer is formed on the outer wall of the head end 10 of the protruding part 13.

Further, the laser fiber 2 extends into the inner cavity of the portion of the extending portion 13 from the handle portion 12, and the laser controller 4 is connected to one end of the laser fiber 2 away from the opening 11.

Further, a foot switch 51 is arranged on the aspirator 5, and the foot switch 51 is electrically connected with the laser controller 4.

Furthermore, the vitreous body cutting head also comprises a drainage tube 6, one end of the drainage tube 6 extends into the inner cavity of the shell 1, and the other end of the drainage tube 6 is connected with the aspirator 5.

When in use, a user holds the handle part 12 of the shell 1 and extends the head end of the deep part 13 of the shell 1 into the vitreous body in the eye, the foot pedal switch 51 is stepped on to start the aspirator 5 to generate negative pressure to suck other tissues or foreign bodies in the vitreous body or the eye to be cut from the opening 11 of the shell 1 to the femtosecond laser action area 101 in the inner cavity of the deep part 13 of the shell 1,

the laser controller 4 can be triggered by stepping on the foot switch 51, so that the optical fiber laser 3 is started, the femtosecond laser is emitted by the optical fiber laser 3, the femtosecond laser is transmitted to the femtosecond laser action region through the laser fiber 2 and carries out ablation and crushing on the cut foreign matters in the femtosecond laser action region 101, and the crushed powder after ablation and crushing flows into the aspirator 5 along the drainage tube 6 under the action of the aspirator 5, so that the excision of the intraocular tissues or the foreign matters is completed.

It should be noted that, in the process of cutting the intraocular tissue and the foreign body by the vitreous body cutting head, the operator controls the laser irradiation mode of the fiber laser 3 by the laser controller 4, for example, the laser irradiation mode may be a pulse type or a continuous irradiation type, and the flow rate of the negative pressure suction of the drainage tube 6 can be adjusted by the suction apparatus 5, so as to control the volume and speed of the tissue cut at the opening of the vitreous body cutting head entering the inner cavity of the housing.

The invention is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, so that the invention is not limited to the specific details, representative apparatus, and examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. The vitreous cutting head is characterized by comprising a shell (1), a laser fiber (2), a fiber laser (3), a laser controller (4) and an aspirator (5); the shell (1) is provided with an inner cavity, an opening (11) is formed in the head end (10) of the shell (1), the laser fiber (2) stretches into the shell (1) and is connected with the laser controller (4), the laser controller (4) is connected with the fiber laser (3), the aspirator (5) is communicated with the inside of the shell (1), and the fiber laser (3) emits femtosecond laser and irradiates the head end (10) of the shell (1) through the laser fiber (2).

2. Vitreous cutting head according to claim 1, characterized in that the femtosecond laser action zone (101) is formed at the inner wall of the head end (10) of the housing (1) where the fiber laser (3) emits radiation.

3. Vitreous cutting head according to claim 1, characterized in that the casing (1) is integrally formed and comprises a handle portion (12) and an intruding portion (13) connected to the handle portion (12), the opening (11) opening onto the intruding portion (13).

4. Vitreous cutting head according to claim 1, characterized in that the casing (1) is integrally formed and comprises a handle portion (12) and a bent, protruding portion (13) connected to the handle portion (12), the opening (11) opening onto the protruding portion (13).

5. A vitreous cutting head according to claim 3 or 4, characterized in that the external wall of the head end (10) of the said protruding portion (13) is formed with a rounded chamfer.

6. A vitreous cutting head according to claim 3 or 4, characterized in that the laser fibre (2) protrudes from the handle portion (12) into the internal cavity of the portion of the protruding portion (13), the laser controller (4) being connected to the end of the laser fibre (2) remote from the opening (11).

7. Vitreous cutting head according to claim 1, characterized in that a foot switch (51) is provided on the aspirator (5), the foot switch (51) being electrically connected to the laser controller (4).

8. The vitreous cutting head according to claim 1, characterized in that it further comprises a drainage tube (6), one end of said drainage tube (6) extending into the inner cavity of said housing (1), the other end of said drainage tube (6) being connected to said aspirator (5).