CN213788165U

CN213788165U - Lens forceps for full femtosecond myopia correction surgery

Info

Publication number: CN213788165U
Application number: CN202022671367.XU
Authority: CN
Inventors: 刘俊; 黄茜
Original assignee: 924th Hospital of the Joint Logistics Support Force of PLA
Current assignee: 924th Hospital of the Joint Logistics Support Force of PLA
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-07-27
Anticipated expiration: 2030-11-18

Abstract

The utility model relates to the field of medical auxiliary appliances, in particular to a pair of lens tweezers for full femtosecond myopia correction surgery, which comprises a handle, a tweezers main body arranged on the handle and a driving mechanism for controlling the opening and closing of the tweezers main body, wherein the tweezers main body comprises two tweezers strips, the rear ends of the two tweezers strips are fixedly connected with the handle, and the front ends of the two tweezers strips are respectively provided with tweezers heads which can be matched with each other; the driving mechanism comprises a sliding part, an elastic pressing plate and a push rod, the sliding part is slidably mounted at the front end of the handle, the two tweezer strips penetrate through the middle of the sliding part, the rear end of the elastic pressing plate is elastically connected with the handle, so that the elastic pressing plate can be unfolded outwards relative to the handle under the action of elastic force, one end of the push rod is hinged to the sliding part, and the other end of the push rod is hinged to the front end of the elastic pressing plate. The utility model discloses a lens tweezers for correcting operation of full femto second myopia, simple structure, the doctor one hand of being convenient for carries out the operation, convenient to use.

Description

Lens forceps for full femtosecond myopia correction surgery

Technical Field

The utility model relates to the field of medical auxiliary appliances, in particular to a lens forceps for full femtosecond myopia correction operation.

Background

The full femtosecond laser (femtosecond laser corneal stroma lens excision) is the most advanced cornea refractive correction in the world at present, greatly improves the safety and the accuracy of myopia correction, and has the advantages of small wound, easy recovery and the like. In the process of being operated by hand, a doctor needs to take out the corneal stroma lens from an incision by using the lens forceps, for example, the utility model with the publication number of CN208405075U discloses forceps for ophthalmic full femtosecond operation, but when the forceps are used for operation, the forceps head needs to be driven to open or clamp by rotating the rotating handle, namely, when the forceps are used, one hand is needed to hold the handle, and the other hand is used to rotate the rotating handle for operation, so that the structure is complex, the operation is complex, and the use is very inconvenient.

Disclosure of Invention

The utility model discloses aim at solving one of the above-mentioned technical problem at least, provide a lens tweezers that is used for near-sighted correction operation of full femto second, simple structure, the doctor one hand of being convenient for operates convenient to use.

In order to realize the purpose, the utility model discloses a technical scheme be: a lens forceps for a full femtosecond myopia correction operation comprises a handle, a forceps main body arranged on the handle and a driving mechanism for controlling the opening and closing of the forceps main body, wherein the forceps main body comprises two forceps strips, the rear ends of the two forceps strips are fixedly connected with the handle, and the front ends of the two forceps strips are respectively provided with forceps heads which can be matched with each other; the driving mechanism comprises a sliding part, an elastic pressing plate and a push rod, the sliding part is slidably mounted at the front end of the handle, the two tweezer strips penetrate through the middle of the sliding part, the sliding part can control the two tweezer heads to be closed or opened mutually when moving back and forth relative to the handle, the rear end of the elastic pressing plate is elastically connected with the handle, so that the elastic pressing plate can be unfolded outwards relative to the handle under the action of elastic force, one end of the push rod is hinged to the sliding part, and the other end of the push rod is hinged to the front end of the elastic pressing plate.

Preferably, the front end of the sliding part is provided with a sliding sleeve in the shape of an arc tube, and the sliding sleeve is sleeved outside the two tweezer strips and is in sliding fit with the two tweezer strips.

Preferably, the radian of the sliding sleeve is 15-75 degrees, and the rear end of the tweezer strip is detachably and fixedly connected with the handle.

Preferably, the rear end of the sliding part is provided with a sliding block which is in sliding fit with the front end of the handle, and the middle part of the sliding block is provided with a hole for the two tweezer strips to pass through.

Preferably, the two symmetrical sides of the handle are provided with elastic pressing plates, and the two elastic pressing plates are respectively connected with the end parts of the sliding parts through push rods.

Preferably, the moving direction of the elastic pressing plate is perpendicular to the moving direction of the two forceps heads.

Preferably, the surface of the elastic pressure plate, which is back to the handle, is provided with anti-skid grains.

Preferably, the front end of the handle is provided with a mounting hole, and the end of the slider is provided with a connecting part in sliding fit with the mounting hole.

Preferably, the handle is provided with a mounting groove communicated with the mounting hole, and the rear ends of the two tweezer strips penetrate through the sliding part to be fixedly connected with the groove wall of the mounting groove.

Preferably, the forceps head gradually thickens from the front end to the rear end.

The beneficial effects are that: compared with the prior art, the utility model discloses a lens tweezers for operation is corrected to full femto second myopia promotes the slider and moves towards tweezers head through pressing down elastic pressing plate when operation, make two tweezers heads closed each other, press from both sides the tight removal of cornea matrix lens from the incision, simultaneously after loosening elastic pressing plate, elastic pressing plate can relative handle open to the outside under the effect of its self elastic force, thereby the pulling slider is the tweezers head motion dorsad, make two tweezers heads open, moreover, the steam generator is simple in structure, only need the one hand can carry out operation, high durability and convenient use.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural view of the lens tweezers of the present invention;

FIG. 2 is a schematic view of a connection structure of the handle and the slider;

fig. 3 is a schematic view of the installation structure of the sliding sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can be intervening components, and when a component is referred to as being "disposed in the middle," it is not just disposed in the middle, so long as it is not disposed at both ends, but rather is within the scope of the middle. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, a lens forceps for a full femtosecond myopia correction operation includes a handle 1, a forceps main body mounted on the handle 1, and a driving mechanism for controlling the opening and closing of the forceps main body, wherein the forceps main body includes two forceps strips 2, the rear ends of the two forceps strips 2 are both fixedly connected with the handle 1, the front ends of the two forceps strips 2 are respectively provided with forceps heads 3 capable of being matched with each other, and the front ends of the two forceps strips 2 are respectively forked towards two sides, so that the two forceps heads 3 can be opened; the driving mechanism comprises a sliding part 4, an elastic pressing plate 5 and a push rod 6, wherein the sliding part 4 is slidably arranged at the front end of the handle 1, the two tweezer strips 2 penetrate through the middle part of the sliding part 4, the sliding part 4 can slide to the front ends of the tweezer strips 2, the sliding part 4 can control the two tweezer heads 3 to be mutually closed or opened when moving back and forth relative to the handle 1, the rear end of the elastic pressing plate 5 is elastically connected with the handle 1, namely, when the elastic pressing plate 5 is fixedly arranged, one end of the elastic pressing plate 5 is fixed with the handle 1, the other end of the elastic pressing plate is obliquely arranged upwards relative to the handle 1, so that the elastic pressing plate 5 can be unfolded outwards relative to the handle 1 under the action of self elastic force, one end of the push rod 6 is hinged with the sliding part 4, the other end of the push rod 6 is hinged with the elastic pressing plate 5 and the sliding part 4 through a pin shaft, and when the elastic pressing plate 5 is pressed, the slider 4 can be pushed by the push rod 6 to slide towards the forceps head 3.

When the operation, the doctor only needs the one hand to hold handle 1, promote slider 4 towards tweezers head 3 motion through pressing elastic pressure plate 5, make two tweezers heads 3 closed each other, in order to press from both sides the tight extraction of cornea stroma lens from the incision, after taking out the cornea stroma, through unclamping elastic pressure plate 5 back, can make elastic pressure plate 5 can open to the outside by handle 1 relatively under the effect of its self elasticity, thereby pull slider 4 motion of tweezers head 3 dorsad, make two tweezers heads 3 open, moreover, the steam generator is simple in structure, only need the one hand can carry out the operation, high durability and convenient use.

In a preferred embodiment, the front end of the sliding member 4 may be provided with a sliding sleeve 7 in the shape of a circular arc tube, the sliding sleeve 7 is sleeved outside the two strips of tweezers 2 and is in sliding fit with the two strips of tweezers 2, specifically, the inner diameter of the sliding sleeve 7 is matched with the sum of the outer diameters of the two strips of tweezers 2 so as to limit the two strips of tweezers 2, prevent the two strips of tweezers 2 from greatly swinging in the sliding sleeve 7, and enable the two tweezers heads 3 to be mutually closed when the sliding sleeve 7 moves to the joint of the two strips of tweezers 2 and the tweezers heads 3, and set the sliding sleeve 7 to be circular arc shape so as to match with the surface curvature of the cornea of a patient, so that a doctor can operate more comfortably and conveniently insert the tweezers heads 3 into the incision to take out the corneal stroma lens. Preferably, as shown in fig. 3, the radian of the sliding sleeve 7 may be 15 to 75 °, specifically, the radian of the sliding sleeve 7 is 15 °, 30 °, 45 °, 60 ° and 70 °, and the rear end of the forceps strip 2 may be fixedly connected with a connector, which is detachably and fixedly connected with the handle 1 through a threaded connection or a snap connection, so that the sliding sleeves with different radians may be replaced according to the radian of different patient's eye corneas, so as to better match with the surface curvature of the patient's eye corneas.

In a further preferred embodiment, the rear end of the sliding member 4 may have a sliding block 8 slidably engaged with the front end of the handle 1, the middle of the sliding block 8 is provided with an aperture 9 for passing the two tweezer strips 2, the sliding block 8 may be arranged in a tapered shape, and the end with the smaller outer diameter is connected to the sliding sleeve 7, and the rear end of the tweezer strip 2 can pass through the aperture 9 and be fixedly connected to the handle 1.

Preferably, in order to facilitate the operation of a doctor, the two symmetrical sides of the handle 1 can be provided with the elastic pressing plates 5, the two elastic pressing plates 5 are respectively connected with the end of the sliding piece 4 through the push rod 6, when the forceps are used, the two elastic pressing plates 5 can be pressed simultaneously, so that the sliding piece 4 is pushed to slide towards the forceps heads 3, further, the moving direction of the elastic pressing plates 5 is perpendicular to the moving direction of the two forceps heads 3, so that the doctor can operate more conveniently, and the operation comfort is improved.

The handle 1 is cylindrical, and two opposite sides of the handle 1 can be symmetrically provided with concave parts 10 for mounting the elastic pressing plate 5, so that the elastic pressing plate 5 can be matched with the concave parts 10 after being pressed, and the comfort level of a doctor when the doctor grasps the handle 1 is improved.

In another preferred embodiment, the surface of the elastic pressing plate 5 facing away from the handle 1 may be provided with anti-slip lines 11 to improve the friction force on the surface of the elastic pressing plate 5, thereby effectively avoiding the lens forceps from falling off when taking the lens forceps.

The front end of handle 1 is provided with mounting hole 12, and the tip of slider 8 can be provided with connecting portion 13 with mounting hole 12 sliding fit, and connecting portion 13 is cylindricly, through being provided with connecting portion 13 and mounting hole 12 sliding fit, can improve the stability of slider 4 with the installation of handle 1.

Further, the handle 1 may be provided with a mounting groove 14 communicated with the mounting hole 12, the rear ends of the two tweezer strips 2 penetrate through the sliding member 4 to be fixedly connected with the groove wall of the mounting groove 14, and by providing the mounting groove 14, the fixed connection between the tweezer strips 2 and the handle 1 and the connection between the push rod 6 and the sliding member 4 are facilitated.

Preferably, the forceps head 3 can be gradually thickened from the front end to the rear end to improve the structural strength of the forceps head 3, that is, the forceps head can be triangular, the rear end of the forceps head is fixedly connected with the forceps strip 2, the front end of the forceps head is provided with an arc chamfered part, and the surfaces of the two forceps heads 3 facing each other can be arranged to be serrated, so that the forceps head 3 is more stable when being clamped.

The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. A lens forceps for a full femtosecond myopia correction operation comprises a handle (1), a forceps main body arranged on the handle (1) and a driving mechanism for controlling the opening and closing of the forceps main body, and is characterized in that the forceps main body comprises two forceps strips (2), the rear ends of the two forceps strips (2) are fixedly connected with the handle (1), and forceps heads (3) capable of being matched with each other are respectively arranged at the front ends of the two forceps strips (2); the driving mechanism comprises a sliding piece (4), an elastic pressing plate (5) and a push rod (6), the sliding piece (4) is slidably installed at the front end of the handle (1), the two tweezer strips (2) penetrate through the middle of the sliding piece (4), the sliding piece (4) can control the two tweezer heads (3) to be closed or opened when the sliding piece moves front and back relative to the handle (1), the rear end of the elastic pressing plate (5) is elastically connected with the handle (1), so that the elastic pressing plate (5) can be unfolded outwards relative to the handle (1) under the action of elastic force, one end of the push rod (6) is hinged to the sliding piece (4), and the other end of the push rod is hinged to the front end of the elastic pressing plate (5).

2. The lens forceps for the full femtosecond myopia correction surgery according to claim 1, wherein the front end of the sliding part (4) is provided with a sliding sleeve (7) in the shape of a circular arc tube, and the sliding sleeve (7) is sleeved outside the two forceps strips (2) and is in sliding fit with the two forceps strips (2).

3. The lens forceps for the full femtosecond myopia correction surgery according to claim 2, wherein the radian of the sliding sleeve (7) is 15-75 degrees, and the rear end of the forceps strip (2) is detachably and fixedly connected with the handle (1).

4. Lens forceps for a full femtosecond myopia correction procedure according to claim 1, characterized in that the rear end of the sliding member (4) is provided with a sliding block (8) which is in sliding fit with the front end of the handle (1), and the middle part of the sliding block (8) is provided with an aperture (9) for passing through the two forceps strips (2).

5. The lens forceps for the full femtosecond myopia correction surgery according to claim 1, wherein two symmetrical sides of the handle (1) are provided with elastic pressing plates (5), and the two elastic pressing plates (5) are respectively connected with the end parts of the sliding parts (4) through push rods (6).

6. Lens forceps for all femtosecond myopic correction surgery according to claim 1, characterized in that the moving direction of the elastic pressing plate (5) is perpendicular to the moving direction of the two forceps heads (3).

7. Lens forceps for a full femtosecond myopia correction procedure according to claim 1, characterized in that the surface of the elastic pressing plate (5) facing away from the handle (1) is provided with anti-skid lines (11).

8. The lens forceps for the full femtosecond myopia correction surgery according to claim 4, wherein the front end of the handle (1) is provided with a mounting hole (12), and the end of the sliding block (8) is provided with a connecting part (13) which is in sliding fit with the mounting hole (12).

9. The lens forceps for the full femtosecond myopia correction surgery according to claim 8, wherein the handle (1) is provided with a mounting groove (14) communicated with the mounting hole (12), and the rear ends of the two forceps strips (2) pass through the sliding part (4) to be fixedly connected with the groove wall of the mounting groove (14).

10. Lens forceps for a full femtosecond myopia correction procedure according to claim 1, characterized in that the forceps heads (3) are gradually thickened from front end to back end.