CN204766120U - A device that is used for eyeball sclera to shorten operation - Google Patents

Abstract

The utility model discloses a device that is used for eyeball sclera to shorten operation, including parallel arrangement ring sum posterior annulus before the fore -and -after of eyeball ambitus, preceding ring sum posterior annulus's diameter all is less than eyeball ambitus diameter, preceding ring and posterior annulus the side that deviates from the centre of a circle separately for the lateral surface, reverse one side be the medial surface, preceding ring and posterior annulus are corresponding on the lateral surface to be equipped with the connecting hole that more than one has a perfect understanding lateral surface and medial surface, the corresponding shrinkage hole of preceding ring sum posterior annulus passes the operation suture and draws preceding ring sum posterior annulus mutually and close. The utility model discloses a device that is used for eyeball sclera to shorten operation, carry on the eyeball sclera lay respectively in shortening the operation with two devices at eyeball front portion and rear portion, through drawing above -mentioned stream oriented device over to one's side, can more make things convenient for, accurate and safe realization eyeball wheel base shortens the operation.

Description

A kind of device for the operation of eyeball scleral shortening

Technical field

This utility model relates to a kind of operation auxiliary device, is specifically related to a kind of device for the operation of eyeball scleral shortening.

Background technology

Normal adult bulbous length (front and back diameter) is 24mm, can maintain normal visual performance.Under some pathological state, or be congenital dysplasia, bulbous length is greater than normal value, and particularly under pathological high myopias state, eyeball can be elongated, this near vision state is a kind of Progressive symmetric erythrokeratodermia, irreversible blinding oculopathy; pathological changes mainly involves the multiple part tissue of eye such as sclera, choroid and retina, and clinical signs is that Progressive symmetric erythrokeratodermia axis oculi is elongated, makes patient cannot see distant objects clearly; severe patient can cause various retinopathy, particularly maculopathy.Along with the continuous increase of myopia sickness rate, the retinopathy caused by high myopia, has become grievous injury people visual performance and even has caused blind major reason.

The device of existing shortening eyeball wheelbase, owing to adopting flexible material, in operation process, installation operation is complicated, and spended time is longer, and operating time excessively of a specified duration is unfavorable for the post-operative recovery of patient.

Utility model content

The purpose of this utility model is to overcome above-mentioned deficiency, by shortening bulbous length, stoping axis oculi elongated further, provides a kind of device for the operation of eyeball scleral shortening for realizing this object.

For reaching the object of above-mentioned utility model, this utility model is achieved through the following technical solutions:

A kind of device for the operation of eyeball scleral shortening of the present utility model, include and be set in parallel in front ring before and after aequator oculi and rear ring, the diameter of described front ring and rear ring is all less than aequator oculi diameter, on front ring and rear ring opposite position, setting runs through the hole of front ring as front shrinkage hole, setting runs through the hole of rear ring as after-contraction hole, and sutures is passed successively by front ring and the drawing of rear ring phase in the front shrinkage hole of described correspondence position and after-contraction hole.

Further, described on front ring and rear ring radial direction opposite position place, front shrinkage hole runs through front ring, and rear ring is run through in after-contraction hole; Or at front ring and rear ring at the opposite position place of short transverse, front shrinkage hole runs through front ring, and rear ring is run through in after-contraction hole.

Further, described rear ring includes more than one and is in isoplanar and the arc sections be cross-linked successively and depressed part, and described depressed part adapts to eyeball flesh width and highly to make eyeball flesh pass, the opening of described depressed part is towards the rear ring center of circle.

The described arc sections position corresponding with front ring is provided with at least one positioning cams, and described positioning cams is positioned on the medial surface of ring or rear ring before respective place respectively.

The positioning cams of described front ring is disposed adjacent with front shrinkage hole, and the positioning cams of rear ring is disposed adjacent with after-contraction hole.

Compared with prior art of the present utility model, tool has the following advantages: first, easy to operate, and Post operation tissue injury is little, and axis oculi shortens degree can flexible modulation, directly can obtain therapeutic effect; Secondly, adopt the structure of positioning convex and shrinkage hole, ensure that the stability of postoperative device, reach the effect shortening eyeball sclera; Finally, the apparatus histocompatibility of front ring and rear ring is good, has no side effect, few intercurrent disease.

Accompanying drawing explanation

Fig. 1 is of the present utility model for ring structure schematic diagram before the device of eyeball scleral shortening operation.

Fig. 2 is the exploded view for ring structure before the device of eyeball scleral shortening operation of the present utility model.

Fig. 3 is the rear ring structure schematic diagram of the device for the operation of eyeball scleral shortening of the present utility model.

Fig. 4 is the local exploded view of the rear ring structure of the device for the operation of eyeball scleral shortening of the present utility model.

Fig. 5 is the device riding position schematic diagram for the operation of eyeball scleral shortening of the present utility model.

Detailed description of the invention

Be clearly and completely described the technical scheme in this utility model embodiment below in conjunction with drawings and Examples, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiment.

Referring to Fig. 1 to Fig. 4, wherein shown in Fig. 1 and Fig. 2, is the front ring structure schematic diagram of this utility model embodiment, shown in Fig. 3 and Fig. 4, is the rear ring structure schematic diagram of this utility model embodiment.

The device for the operation of eyeball scleral shortening of this embodiment includes front ring 110 and rear ring 120, front ring 110 and rear ring 120 are set in parallel in before and after aequator oculi respectively, the diameter of front ring 110 and rear ring 120 is all less than the diameter of aequator oculi, so both are close to each other to ambitus from aequator oculi both sides, the shortening of eyeball sclera can be realized.

Adopt on front ring 110 and rear ring 120 correspondence position, arrange run through front ring 110 hole as front shrinkage hole 113, arrange run through rear ring 120 hole as after-contraction hole 123, realize the close to each other of front ring 110 and rear ring 120.

As an embodiment, on front ring 110 and rear ring 120 radial direction, front shrinkage hole 113 runs through front ring 110, and rear ring 120 is run through in after-contraction hole 123.

As another embodiment, on front ring 110 and rear ring 120 short transverse, front shrinkage hole 113 runs through front ring 110, and rear ring 120 is run through in after-contraction hole 123.

Different directions arranges front shrinkage hole 113 and after-contraction hole 123, is conducive to adapting to the distribution of different eyeball eye muscle, in order to avoid cause the sense of discomfort of eyeball because of suture.

The aperture in described front shrinkage hole 113 and after-contraction hole 123 is 0.5mm in the present embodiment.

Front ring 110 is the annulus with ring thickness, and its radial thickness is between 1mm to 1.5mm, and the internal diameter of front ring 110 is between 18mm to 20mm, and width is between 2mm to 3mm.

As an embodiment, rear ring 120 is an annulus with ring thickness equally, and its radial thickness is between 1mm to 1.5mm, and the internal diameter of rear ring 120 is between 20mm to 22mm, and width is between 2mm to 3mm.

Another embodiment of rear ring 120, rear ring 120 includes more than one arc sections 126 and more than one depressed part 125, arc sections 126 and depressed part 125 isoplanar, the structure of described depressed part 125 is to adapt to eyeball flesh width and highly to make it pass and arrange, and the opening of depressed part 125 is towards rear ring 120 center of circle, the two ends of opening connect between two arc sections.

Second embodiment of rear ring 120, described arc sections 126 is cross-linked successively with depressed part 125.

As shown in Figure 3, the 4th embodiment of rear ring 120, described rear ring 120 has foregoing feature, and arc sections 126 and depressed part 125 respectively have four, depressed part 125 is adjacent with arc sections 126 to be connected, namely with clock scale for instruction, four depressed parts 125 are respectively in 12 points, 3 points, and 9 directions at 6, are connected with an arc sections 126 between adjacent two depressed parts 125.

Further, described arc sections and front ring are separately towards on the side in the center of circle, what position was corresponding is provided with more than one positioning cams 104, this positioning cams 104 is sharp property detent projection, its width is between 0.2mm to 0.3mm, height is between 0.1mm to 0.2mm, and thickness is between 0.1mm to 0.2mm.

As another embodiment, described positioning cams 104, on front ring 110 and rear ring 120, with scale all the time for instruction, is then in the orientation of 1 point, 2 points, 4 points, 5 points, 7 points, 8 points, 10 and 11 respectively.

As an embodiment, the positioning cams 104 of described front ring is disposed adjacent with front shrinkage hole 113, and the positioning cams 104 of rear ring is disposed adjacent with after-contraction hole 123.After making suture pass front shrinkage hole 113 and after-contraction hole 123 like this, can contact with eyeball in the space produced through positioning cams 104 and pass, when suture draws front ring 110 and rear ring 120 over to one's side, can not damage eyeball generation because of the activity of suture.

Refer to Fig. 5, what the present embodiment is used for the device of eyeball scleral shortening operation is installed into line description, is convenient to the clearer beneficial effect understanding the present embodiment.

When applying said apparatus and carrying out eyeball wheelbase shortening operation, size according to eyeball selects the front ring of different-diameter 110 and rear ring 120, both positioning cams 104 can penetrate the scleral tissue of wall of eyeball, thus make front ring 110 and rear ring 120 be fixed on the surface of aequator oculi both sides, wherein, ring 120 needs first to adapt to eyeball flesh position, regulate the position of depressed part 125, thus rear ring 120 is fixed.When needs shrink axial length of the eye, first reduce intraocular pressure by the method for vitreous excision, then use the suture of nonabsorable successively through the front shrinkage hole 113 on correspondence position and after-contraction hole 123, finally tighten up suture, make front ring 110 and rear ring 120 close, thus reach by axial length of the eye shorten object.

Above-described embodiment only in order to this utility model is described and and technical scheme described by unrestricted this utility model; Therefore, although this description has been described in detail this utility model with reference to each above-mentioned embodiment, those of ordinary skill in the art should be appreciated that and still can modify to this utility model or equivalent replacement; And all do not depart from technical scheme and the improvement thereof of spirit and scope of the present utility model, it all should be encompassed in the middle of right of the present utility model.

Claims (5)

1. the device for the operation of eyeball scleral shortening, it is characterized in that: include and be set in parallel in front ring before and after aequator oculi and rear ring, the diameter of described front ring and rear ring is all less than aequator oculi diameter, on front ring and rear ring opposite position, setting runs through the hole of front ring as front shrinkage hole, setting runs through the hole of rear ring as after-contraction hole, and sutures is passed successively by front ring and the drawing of rear ring phase in the front shrinkage hole of described correspondence position and after-contraction hole.

2. according to claim 1 for eyeball scleral shortening operation device, it is characterized in that: described on front ring and rear ring radial direction opposite position place, front shrinkage hole runs through front ring, and rear ring is run through in after-contraction hole; Or at front ring and rear ring at the opposite position place of short transverse, front shrinkage hole runs through front ring, and rear ring is run through in after-contraction hole.

3. the device for the operation of eyeball scleral shortening according to claim 2, it is characterized in that: described rear ring includes more than one and is in isoplanar and the arc sections be cross-linked successively and depressed part, described depressed part adapts to eyeball flesh width and highly to make eyeball flesh pass, the opening of described depressed part is towards the rear ring center of circle.

4. the device for the operation of eyeball scleral shortening according to claim 3, it is characterized in that: the described arc sections position corresponding with front ring is provided with at least one positioning cams, described positioning cams is positioned on the medial surface of ring or rear ring before respective place respectively.

5. the device for the operation of eyeball scleral shortening according to claim 4, it is characterized in that: the positioning cams of described front ring is disposed adjacent with front shrinkage hole, the positioning cams of rear ring is disposed adjacent with after-contraction hole.