CN213310855U

CN213310855U - Intraoperative retinal fixer

Info

Publication number: CN213310855U
Application number: CN202020977160.2U
Authority: CN
Inventors: 张立华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-06-01
Anticipated expiration: 2030-06-02

Abstract

The utility model relates to the field of medical equipment, concretely relates to intraoperative retinal fixer, including handle pole and needle body, handle pole upper end symmetry is provided with ear piece, rotate through the pivot in the ear piece and be connected with the bull stick, the bull stick top is connected with needle body threaded connection, the internal rotation of handle pole is connected with the screw lead screw, be provided with on the screw lead screw with it complex screw lead screw pair, screw lead screw pair lateral wall articulates there is the regulation pole, the regulation pole upper end is worn out in the handle pole and is articulated to cooperate with the bull stick bottom, screw lead screw upper end is provided with first bevel gear, the middle part of the handle pole is provided with the screw hole, the screw hole internal thread is connected with the knob, cross hole open-clearance fit has cross, cross is close to screw lead screw one end and is provided with the axostyl; the utility model discloses a finger rotates the knob, realizes adjusting the angle of needle body and eye operation in the art, not only improves the convenience degree of using, improves operation efficiency moreover.

Description

Intraoperative retinal fixer

Technical Field

The utility model relates to the field of medical equipment, concretely relates to retina fixer in art.

Background

Proliferative Vitreoretinopathy (PVR) is one of the complications of retinal reattachment surgery, and drug treatment basically has difficulty in controlling the development of the disease, and perfluorocarbon liquid (heavy water) is mainly adopted to assist in fixing the retina, stripping the proliferative membrane and relieving the traction of basal vitreous body on the retina, thereby recovering the normal anatomical structure and recovering the function as much as possible. However, the perfluorocarbon liquid cannot be completely taken out after the operation is finished, and the perfluorocarbon residual liquid can generate toxic effect on tissues after being kept in eyes for a long time, so that corneal edema and turbidity are caused, the toxicity to retina is larger, and the damage and death of retinal cells are caused.

At present, chinese patent No. 201920163738.8 discloses an intraoperative retinal fixation device, a surgical tool, used for complex vitreous cutting, in the shape of a gold fine needle: the needle body is the cylinder, and the needle tip is convex arc face, and the other end is flat head needle nose, accounts for length 1/5: gradually reducing the diameter to the sheet shape along the axis of the needle body in opposite directions, reserving an elliptical hole from the middle part of the sheet shape to the center of the end part, forming a ring at the edge, and gradually thickening and swelling the elliptical arc at the end part. The device provides a positioning point on the retina during the operation, and exactly and locally presses the retina, so that the stripping proliferation membrane can be reversely forced to assist in completely stripping the anterior proliferation membrane and the posterior proliferation membrane of the retina.

But the following defects and shortcomings exist in the implementation process:

although the needle body of the device can be folded into any shape, the use angle of the needle body cannot be changed in the use in the operation, and the needle body needs to be folded into an angle convenient to use after being taken out, so that certain inconvenience is caused to doctors.

SUMMERY OF THE UTILITY MODEL

Solves the technical problem

To the above-mentioned shortcoming that prior art exists, the utility model provides an intraoperative retinal fixer can solve the unable in the art use of needle body of prior art effectively and change its use angle, need take out the needle body after refolding into the angle of convenient to use, and then cause certain inconvenient problem for the doctor.

Technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides a retina fixer in art, includes handle pole and needle body, handle pole upper end symmetry is provided with the ear piece, rotates through the pivot in the ear piece and is connected with the bull stick, bull stick top and needle body threaded connection, and the handle pole internal rotation is connected with the screw lead screw, and it is vice that the screw lead screw that is provided with complex on the screw lead screw has an adjusting lever, and the adjusting lever upper end is worn out in the handle pole and is articulated the cooperation with the bull stick bottom, and screw lead screw upper end is provided with first bevel gear, the handle pole middle part is provided with the screw hole, and screw hole female connection has the knob, and the cross hole has been seted up at the knob middle part, and cross downthehole clearance fit has ten characters strip, and the cross strip is close to screw lead screw one end and is provided with the axostylus axostyle, and the.

Furthermore, the bottom of the needle body is provided with a threaded sleeve, the top end of the rotating rod is provided with a threaded part in threaded fit with the threaded sleeve, and the needle body is convenient to take down from the top end of the rotating rod through the fit of the threaded sleeve and the threaded part, so that the needle body is convenient to clean and disinfect.

Furthermore, a first bearing is fixedly connected in the middle of the handle rod through a first connecting piece, the lower end of the threaded screw rod is hinged to the inner wall of the bottom side of the handle rod in a spherical mode, the upper end of the threaded screw rod penetrates through the first bearing and is in rotating fit with the first bearing, and the threaded screw rod is rotatably connected in the handle rod through the rotating connection of the first bearing and the threaded screw rod.

Furthermore, a limiting groove is formed in the inner wall of the handle rod, a limiting block in sliding fit with the limiting groove is arranged on one side, close to the limiting groove, of the threaded screw rod pair, and rotation of the threaded screw rod pair is limited through the matching of the limiting block and the limiting groove, namely the threaded screw rod pair can only translate along the threaded screw rod.

Furthermore, the handle rod is internally and fixedly connected with a second bearing in running fit with the shaft rod through a second connecting piece, the shaft rod is rotationally connected in the handle rod through the running fit of the second bearing and the shaft rod, and the movement of the shaft rod is limited, namely, the shaft rod can only rotate.

Furthermore, the upper end of the handle rod is provided with a notch, and the upper end of the adjusting rod penetrates through the handle rod through the notch, so that the handle rod is prevented from blocking the adjustment of the angle of the adjusting rod.

Advantageous effects

Adopt the utility model provides a technical scheme compares with known public technique, has following beneficial effect:

the utility model discloses a finger rotates the knob, realizes adjusting the angle of needle body and eye operation in the art, and is simple and convenient, not only improves the degree of convenience that uses, improves operation efficiency moreover.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic side view of the structure of the present invention;

fig. 2 is a schematic view of the depression structure of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure A-A' of the present invention;

FIG. 4 is a schematic view of the cross-sectional structure of B-B' of the present invention;

fig. 5 is an enlarged schematic view of the structure at position C of the present invention;

the reference numerals in the drawings denote: 1-a handle; 2-a needle body; 3-an ear piece; 4-rotating the rod; 5-a threaded screw rod; 6-a screw pair; 7-adjusting the rod; 8-a first bevel gear; 9-a threaded hole; 10-knob; 11-a cross hole; 12-cross bars; 13-a shaft rod; 14-a second bevel gear; 15-thread bushing; 16-a first bearing; 17-defining a slot; 18-a limiting block; 19-a second bearing; 20-notch.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Examples

An intraoperative retinal fixation device of the present embodiment, referring to fig. 1 to 5: comprises a handle rod 1 and a needle body 2, ear pieces 3 are symmetrically arranged at the upper end of the handle rod 1, a rotating rod 4 is rotatably connected in the ear pieces 3 through a rotating shaft, the top end of the rotating rod 4 is in threaded connection with the needle body 2, a threaded screw rod 5 is rotatably connected in the handle rod 1, a threaded screw rod pair 6 matched with the threaded screw rod 5 is arranged on the threaded screw rod 5, the side wall of the threaded screw rod pair 6 is hinged with an adjusting rod 7, the upper end of the adjusting rod 7 penetrates out of the handle rod 1 and is in hinged fit with the bottom end of the rotating rod 4, a first bevel gear 8 is arranged at the upper end of the threaded screw rod 5, a threaded hole 9 is arranged in the middle of the handle rod 1, a knob 10 is in threaded connection with the threaded hole 9, a cross hole 11 is arranged in the middle of the knob 10, cross bars 12, and the shaft 13 is provided with a second bevel gear 14 engaging with the first bevel gear 8 near one end of the first bevel gear 8.

Wherein, 2 bottoms of needle body are provided with

thread bush

15, 4 top portions of bull stick be provided with 15 screw-thread fit's of thread bush screw thread portion, through the cooperation of thread bush 15 with screw thread portion, be convenient for take off needle body 2 from 4 tops of bull stick, and then be convenient for wash the disinfection to needle body 2.

Wherein, through first connecting piece fixedly connected with first bearing 16 in the middle part of handle pole 1, screw lead screw 5 lower extreme ball-type articulates at handle pole 1 bottom side inner wall, and screw lead screw 5 upper end passes first bearing 16 and is connected through the rotation of first bearing 16 with screw lead screw 5, realizes that screw lead screw 5 rotates and connects in handle pole 1.

The inner wall of the handle 1 is provided with a limiting groove 17, one side of the threaded screw rod pair 6, which is close to the limiting groove 17, is provided with a limiting block 18 in sliding fit with the limiting groove 17, and the rotation of the threaded screw rod pair 6 is limited through the matching of the limiting block 18 and the limiting groove 17, namely, the threaded screw rod pair 6 can only move horizontally along the threaded screw rod 5.

Wherein, through second connecting piece fixedly connected with and axostylus axostyle 13 normal running fit's second bearing 19 in the 1 middle part of handle, through the normal running fit of second bearing 19 with axostylus axostyle 13, realize that axostylus axostyle 13 rotates and connects in handle 1 to the removal to axostylus axostyle 13 limits, and axostylus axostyle 13 can only rotate promptly.

Wherein, the upper end of the handle rod 1 is provided with a notch 20, and the upper end of the adjusting rod 7 penetrates through the handle rod 1 through the notch 20, so that the handle rod 1 is prevented from obstructing the adjustment of the angle of the adjusting rod 7.

When the eye surgery needle is used, the needle body 2 is firstly connected to the upper end of the rotating rod 4 in a threaded manner, then the needle body 2 is folded into a structure which is convenient for an operator to strip, the handle rod 1 is held by hand, the needle body 2 is placed in the eye surgery position, along with the change of continuously stripping angles, the shaft rod 13 is moved and limited through the second bearing 19, the shaft rod 13 can only rotate in the handle rod 1, the cross strips 12 are limited through the cross holes 11, when the knob 10 is rotated by fingers, the cross strips 12 rotate relative to the handle rod 1 and drive the shaft rod 13 to rotate, so that the threaded screw rod 5 rotates around the axis through the meshing of the second bevel gear 14 and the first bevel gear 8, the threaded screw rod pair 5 moves along the direction of the threaded screw rod 5, the upper end of the adjusting rod 7 moves upwards, the angle of the adjusting rod 7 and the rotating rod 4 is changed, and the angle of the needle body 2 and the eye surgery, the mode that the needle body is folded into the angle convenient to use after being taken out and then is placed into the operation position is not needed, so that the operation efficiency is improved, the angle between the needle body 2 and the eye operation can be conveniently adjusted by a doctor in the operation at any time, and the use convenience is improved.

The device rotates knob 10 through the finger, realizes adjusting the angle of needle body 2 and eye operation in the art, not only improves the convenience of using, improves operation efficiency moreover.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an intraoperative retinal fixer, includes handle (1) and needle body (2), its characterized in that: the upper end of the handle rod (1) is symmetrically provided with ear pieces (3), the ear pieces (3) are connected with a rotating rod (4) in a rotating way through a rotating shaft, the top end of the rotating rod (4) is in threaded connection with the needle body (2), the handle rod (1) is connected with a threaded lead screw (5) in a rotating way, the threaded lead screw (5) is provided with a threaded lead screw pair (6) matched with the threaded lead screw, the side wall of the threaded lead screw pair (6) is hinged with an adjusting rod (7), the upper end of the adjusting rod (7) penetrates out of the handle rod (1) and is in hinged fit with the bottom end of the rotating rod (4), the upper end of the threaded lead screw (5) is provided with a first bevel gear (8), the middle part of the handle rod (1) is provided with a threaded hole (9), the threaded hole (9) is internally connected with a knob (10), the middle part of the knob (10) is provided with a cross hole, the shaft lever (13) is rotatably connected in the handle lever (1), and one end of the shaft lever (13) close to the first bevel gear (8) is provided with a second bevel gear (14) meshed with the first bevel gear (8).

2. An intraoperative retinal fixation device according to claim 1, characterized in that the needle body (2) is provided at its bottom with a threaded sleeve (15) and the rotating rod (4) is provided at its tip with a threaded portion which is threadedly engaged with the threaded sleeve (15).

3. An intraoperative retinal fixation device according to claim 1, wherein a first bearing (16) is fixedly connected in the middle of the handle rod (1) through a first connecting piece, the lower end of the threaded screw rod (5) is spherically hinged on the inner wall of the bottom side of the handle rod (1), and the upper end of the threaded screw rod (5) passes through the first bearing (16) and is rotatably matched with the first bearing (16).

4. An intraoperative retinal fixation device according to claim 1, wherein the inner wall of the handle (1) is provided with a limiting groove (17), and the side of the threaded screw rod pair (6) close to the limiting groove (17) is provided with a limiting block (18) which is in sliding fit with the limiting groove (17).

5. An intraoperative retinal fixation device according to claim 1, characterized in that a second bearing (19) which is in running fit with the shaft (13) is fixedly connected in the middle of the stem (1) by a second connector.

6. An intraoperative retinal fixation device according to claim 1, wherein the upper end of the handle rod (1) is provided with a notch (20), and the upper end of the adjusting rod (7) penetrates out of the handle rod (1) through the notch (20).