CN214632590U - Novel posterior scleral staphyloma support - Google Patents
Novel posterior scleral staphyloma support Download PDFInfo
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- CN214632590U CN214632590U CN202022968848.7U CN202022968848U CN214632590U CN 214632590 U CN214632590 U CN 214632590U CN 202022968848 U CN202022968848 U CN 202022968848U CN 214632590 U CN214632590 U CN 214632590U
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Abstract
The utility model provides a novel back sclera plasmodiophora support, include: the device comprises at least one arc-shaped arm, at least one fixed area and at least one adjustable jacking structure, wherein one arc-shaped arm corresponds to one fixed area and one adjustable jacking structure, and two ends of the arc-shaped arm are respectively connected with the fixed area and the adjustable jacking structure; the advantages are that: the pressing height of the back sclera can be repeatedly and accurately adjusted according to the optometry result in the operation, the retinal macular region of the patient is directly pressed to the parallel light focusing point, and the ametropia problem of the patient is corrected while the back scleral staphyloma is treated.
Description
Technical Field
The utility model belongs to the technical field of the operative installations technique among the ophthalmic surgery and specifically relates to a novel back sclera staphyloma support.
Background
High myopia, especially pathological myopia, may have posterior scleral staphyloma in addition to elongation of the axis of the eye. The reason for this is that the resistance of the sclera is weakened by congenital defects or pathological lesions, and the sclera and uvea bulge outward under normal or high intraocular pressure. The retroscleral staphyloma may also be accompanied by pathological manifestations of progressive increase of the myopia degree after adult, retinal choroidal atrophy, macular hole, macular retinal cleavage, retinal detachment and the like which seriously affect the vision.
The prior art may use posterior scleral reinforcement surgery, i.e., applying a stressors material (foreign or autologous biological or synthetic) to reinforce the posterior segment of the sclera, for the treatment of posterior scleral staphyloma. For example: CN105125341A describes an arc-shaped stent, which can be implanted and fixed conveniently, and can fix the top pressing material on the end of the stent, and the top pressing force and the top pressing height of the top pressing material by the traction strip can be increased by shortening the traction strip.
However, the fixed pulling straps require manual suturing and knotting, and it is difficult to precisely control the degree and height of the top pressure during the suturing process. Therefore, although the posterior sclera can be pressed and reinforced, the ocular axis of the patient cannot be accurately corrected, and the diopter of the patient cannot be accurately changed. The post-operative patient still has some degree of ametropia and needs to be corrected by spectacles or other means.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel back sclera staphyloma support, the purpose is overcome above-mentioned technical defect at least to correct patient's ametropia problem when effectively treating back sclera staphyloma.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
a novel posterior scleral staphyloma scaffold comprising: the device comprises at least one arc-shaped arm, at least one fixed area and at least one adjustable jacking structure, wherein one arc-shaped arm corresponds to one fixed area and one adjustable jacking structure, and two ends of the arc-shaped arm are respectively connected with the fixed area and the adjustable jacking structure;
the arc-shaped arm is composed of a plurality of arc-shaped bodies with hollow parts and a plurality of connecting parts, the arc-shaped bodies are connected in series through the connecting parts, and two ends of the arc-shaped arm are respectively connected with the fixing area and the adjustable jacking structure through the connecting parts;
the curvature of the arc-shaped arm is suitable for the shape of an eyeball and is used for extending into the back of the eyeball;
the fixing area is used for being fixed on the scleral wall of the eyeball of the patient in a sewing way;
the adjustable jacking structure is used for jacking and pressing the sclera outer wall corresponding to the macular region of the retina.
Preferably, the fixing area is fixedly connected with the arc-shaped arm, and the top pressure adjustable structure is movably connected with the arc-shaped arm.
Preferably, the fixing area is one of a straight line shape, a T shape, a Y shape, an F shape, an X shape, a cross shape and a meter shape.
Preferably, the adjustable jacking structure comprises a nut, a rotating screw and at least one guide wire, the nut is fixedly connected with the connecting part, the rotating screw is in threaded connection with the nut, the guide wire is wound around the rotating screw for a plurality of circles and then penetrates into the arc-shaped arm and extends to the fixing area, two guide wire ends penetrate out of the fixing area, and the rotating screw is lifted and lowered after being rotated left and right by pulling different guide wire ends.
Preferably, the adjustable pressing structure comprises a bottom pressing block fixedly connected with the connecting part, a pressing pad, a wedge-shaped sliding block provided with a wedge-shaped groove, at least one guide wire and a bump, the bottom pressing block is positioned at the lower part of the bump and integrally formed with the bump, the pressing pad is positioned at the upper part of the bump and movably connected with the bump, the wedge-shaped sliding block is positioned between the bottom pressing block and the pressing pad, and the wedge-shaped groove is matched with the bump, so that the wedge-shaped sliding block is slidably connected with the bump;
the guide wire penetrates out of the wedge-shaped sliding block, passes through the arc-shaped arm and penetrates out of the two guide wire ends from the fixing area, and the wedge-shaped sliding block and the lug slide relatively by pulling the two guide wire ends simultaneously so as to jack up or lower down the jacking pad.
Preferably, the friction between the rotating screw and the nut is greater than the eye wall pressure.
Preferably, the friction between the projection and the wedge slider is greater than the eye wall pressure.
The utility model discloses a novel back sclera staphyloma support, its advantage is:
1. the utility model relates to a novel back sclera staphyloma support, which can repeatedly and accurately adjust the top pressure height of the back sclera according to the intraoperative optometry result after being fixed, directly top pressure a retina macular region of a patient to a parallel light focusing point, and correct the ametropia problem of the patient while treating the back sclera staphyloma;
2. in the structural design of the utility model, the arc-shaped arm structure is designed, on one hand, the guide wire is easy to pass through during the operation, and the operation efficiency is improved; on the other hand, after the eyes of the patient are adjusted to be emmetropic, the guide wires in the top pressure adjustable structure are cut off near the arc-shaped arm, and the rest guide wires are buried in the hollow part of the arc-shaped arm without being taken out, so that the convenience of the operation is improved;
3. in the structural design of the utility model, the eye axis of the patient can be accurately corrected and the diopter of the patient can be accurately changed by several design forms of the top pressure adjustable structure without knotting, and the guide wire or the guide pipe is cut and then sealed, and then the guide wire or the guide pipe is buried in the hollow part of the arc-shaped arm;
4. the utility model discloses the structural design of well arc arm mesosphere can conveniently make the adjustable roof pressure structure of adjusting the roof pressure height pass through, alleviates support weight simultaneously, improves patient's adaptability.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the structure of the embodiment of FIG. 1 from another perspective;
fig. 3 is a schematic perspective view of a part of another embodiment of the present invention, wherein the part not shown is the same as that in fig. 1 and 2;
FIG. 4 is a schematic perspective view of the structure of the embodiment of FIG. 3 from another perspective;
FIG. 5 is a schematic structural diagram of a wedge-shaped slider in the embodiment of FIGS. 3 and 4;
FIG. 6 is a front view of the embodiment of FIGS. 3 and 4 without the wedge shoes;
FIG. 7 is a schematic view of the top press pad of FIG. 6 when it is pressed (wedge shaped slide not shown);
wherein:
the arc-shaped arm 1, the hollow part 11, the arc-shaped body 12 and the connecting part 13;
a fixed zone 2;
the adjustable jacking structure 3, the nut 31, the rotating screw 32, the guide wire 33, the guide wire end 331, the bottom pressing block 34, the jacking pad 35, the hole 351, the wedge-shaped groove 36, the sliding block 361, the wedge-shaped sliding block 37, the bump 38, the cylinder 381 and the sliding groove 382.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
In one embodiment:
the utility model provides a pair of novel back sclera plasmodiophora support, its structure includes: the pressing device comprises at least one arc-shaped arm 1, at least one fixing area 2 and at least one adjustable pressing structure 3, wherein one arc-shaped arm 1 corresponds to one fixing area 2 and one adjustable pressing structure 3, and two ends of the arc-shaped arm 1 are respectively connected with the fixing area 2 and the adjustable pressing structure 3; the curvature of the arc-shaped arm 1 is suitable for the shape of an eyeball and is used for extending into the back of the eyeball; the fixing area 2 is used for being fixed on the scleral wall of the eyeball of the patient in a sewing way; the adjustable jacking structure 3 is used for jacking the sclera outer wall corresponding to the macular region of the retina.
The utility model discloses a support uses the material that has certain hardness to make, for example titanium alloy, plastics etc. and its surface can wrap up in flexible material, for example sponge to improve the adaptability of patient to this support.
The fixed area 2 is fixedly connected with the arc-shaped arm 1, and the top pressure adjustable structure 3 is movably connected with the arc-shaped arm 1; the arc-shaped arm 1 can have various specifications, namely different lengths and curvatures, so as to be suitable for various shapes of eyeballs, and in the operation process, the arc-shaped arm 1 extends into the eyeballs, and the adjustable jacking structure 3 jacks a macular region;
in a specific structure, the arc-shaped arm 1 may be composed of a plurality of arc-shaped bodies 12 having hollow portions 11 and a plurality of connecting portions 13, and the plurality of arc-shaped bodies 12 are connected in series through the connecting portions 13, so that both ends of the arc-shaped arm 1 are respectively connected to the fixing region 2 and the adjustable pressing structure 3 through the connecting portions 13. The structure design of the hollow part 11 in the structure can facilitate the passing of the top pressure height adjustable top pressure structure 3; further, the arc-shaped arm 1 may be provided with an indicating structure (not shown), such as an optical fiber, for facilitating the observation of the position of the pressure-adjustable structure 3 from the eye during the operation; the arcuate body 12 may be circular, rectangular, square, diamond, oval, etc.
In a specific embodiment, the fixing region 2 may be a straight line or a branched structure, such as T-shaped, Y-shaped, F-shaped, X-shaped, cross-shaped, or m-shaped, which facilitates sewing and fixing;
the fixing area 2 may also be composed of an arc-shaped body 12 having a hollow portion 11, and a connecting portion 13, wherein the arc-shaped body 12 may be circular, rectangular, square, diamond, oval, or the like.
In order to repeatedly and precisely adjust the pressing height of the posterior sclera, the retinal macular region of the patient is directly pressed to the parallel light focusing point, in a specific embodiment, as shown in fig. 1 and 2, the pressing-adjustable structure 3 is located at the end of the arc-shaped arm 1 and presses against the outer wall of the sclera corresponding to the retinal macular region; the adjustable jacking structure 3 comprises a nut 31, a rotating screw 32 and at least one guide wire 33, the nut 31 is fixedly connected with the connecting part 13, the rotating screw 32 is in threaded connection with the nut 31, the guide wire 33 is wound around the rotating screw 32 for a plurality of circles and then penetrates into the arc-shaped arm 1 and extends to the fixing area 2, two guide wire ends 331 penetrate out of the fixing area 2, and the rotating screw 32 is lifted and lowered after being rotated left and right by pulling different guide wire ends 331, so that the jacking height is repeatedly and accurately adjusted; the friction between the rotating screw 32 and the nut 31 is greater than the eye wall pressure, so that the eye wall pressure is not sufficient to change the position of the screw.
Specifically, as shown in fig. 1 and 2, a perforation (not shown) is formed on the arc-shaped arm 1, through which the guide wire 33 passes, and extends to the fixing region 2, and the radian of the perforation is the same as the curvature of the arc-shaped arm 1, further, the perforation is composed of a plurality of holes on the arc-shaped body 12 and the plurality of connecting portions 13, and the perforation is communicated with the hollow portion 11, so that the guide wire 33 can conveniently pass through the arc-shaped arm 1, and at the same time, the cut guide wire 33 can be conveniently buried in the hollow portion 11 after the operation;
when the guide wire 33 is a single guide wire, after the guide wire 33 is wound around the rotating screw 32 for several turns, both ends of the guide wire 33 can pass through the connecting portion 13, the arc-shaped body 12 and the hollow portion 11 in the arc-shaped arm 1 (wherein, the hollow portion 11 is designed to facilitate the operation in the operation, so that the guide wire 33 can pass through the hollow portion), until the guide wire 33 extends to the fixing area 2, so as to extend out two guide wire ends 331 from the fixing area 2;
preferably, the number of the guide wires 33 is two, in this case, one end of each of the two guide wires 33 may be fixed on the rotating screw 32, and the two guide wires 33 may be wound on the rotating screw 32 for several turns in opposite directions, without interfering with each other, and then the other end of each of the two guide wires 33 passes through the connecting portion 13, the arc body 12 and the hollow portion 11 in the arc arm 1 (wherein, the hollow portion 11 is designed to facilitate the operation in the operation, so that the guide wires 33 can pass through the hollow portion 11), until the other end extends to the fixing region 2, so as to extend out two guide wire ends 331 from the fixing region 2;
after the operation is completed, the guide wire 33 near the arc-shaped arm 1 may be cut off, and the remaining guide wire 33 may be buried in the hollow portion 11 of the arc-shaped arm 1 without being removed.
In another embodiment:
as shown in fig. 3, 4, 6, and 7, the adjustable pressing structure 3 is composed of a bottom pressing block 34 fixedly connected to the connecting portion 13, a pressing pad 35, a wedge-shaped sliding block 37 with a wedge-shaped groove 36, at least one guide wire 33, and a protrusion 38, where the bottom pressing block 34 is located at the lower portion of the protrusion 38 and integrally formed with the protrusion 38, the pressing pad 35 is located at the upper portion of the protrusion 38 and movably connected to the protrusion 38, the wedge-shaped sliding block 37 is located between the bottom pressing block 34 and the pressing pad 35, and the wedge-shaped groove 36 is adapted to the protrusion 38, so that the wedge-shaped sliding block 37 is slidably connected to the protrusion 38; the guide wire 33 passes through the arc-shaped arm 1 after passing through the wedge-shaped sliding block 37, and passes through the two guide wire ends 331 from the fixing area 2, and the wedge-shaped sliding block 37 and the bump 38 slide relatively by pulling the two guide wire ends 331 simultaneously, so as to jack up or lower the jacking pad 35. The friction between the cam 38 and the wedge 37 is greater than the eye wall pressure, which is not sufficient to change the position of the top pressure pad 35 when the pulling force on the wedge 37 is released.
More specifically, a hole 351 is formed in the lower portion of the top pressure pad 35, and a cylinder 381 matched with the hole 351 is arranged on the upper end surface of the projection 38, so that the wedge-shaped slider 37 slides relative to the projection 38 when being pulled by the guide wire 33, and the top end of the cylinder 381 moves away from or abuts against the upper end surface of the hole 351, namely, the top pressure pad 35 is jacked up or lowered down; in another practical embodiment, the top pressing pad 35 is hinged to the protrusion 38 (not shown), and the hinge point is located at a side close to the arc-shaped arm 1, when the wedge-shaped slider 37 slides relative to the protrusion 38 toward the arc-shaped arm 1, the top pressing pad 35 facing away from the hinge point is lifted by the top surface of the wedge-shaped slider 37; when the wedge slider 37 moves in the opposite direction, the lower end surface of the top pressing pad 35 contacts the upper end surface of the projection 38.
More specifically, as shown in fig. 5, the left and right side walls of the wedge-shaped groove 36 are symmetrically provided with sliding blocks 361, as shown in fig. 6 and 7, the left and right side walls of the protrusion 38 are symmetrically provided with sliding grooves 382, the width and height of the sliding blocks 361 are equal to the depth and height of the sliding grooves 382, and the length of the sliding blocks 361 is smaller than the length of the sliding grooves 382, so that the sliding blocks 361 slide in the front and back directions (i.e., the directions toward or away from the arc-shaped arm 1) in the sliding grooves 382.
When the guide wire 33 is one, the guide wire 33 is pre-embedded in a guide wire groove (not shown in the figure) in the wedge-shaped sliding block 37, and both ends of the guide wire 33 penetrate through the connecting portion 13, the arc-shaped body 12 and the hollow portion 11 in the arc-shaped arm 1 (wherein the hollow portion 11 is designed to facilitate operation in the operation and the guide wire 33 can penetrate through the hollow portion 11) after penetrating through the left end and the right end of the wedge-shaped sliding block 37 until extending to the fixing area 2, and the wedge-shaped sliding block 37 and the bump 38 slide relative to each other by pulling the two penetrating guide wire ends 331 at the same time so as to jack up or lower the jacking pad 35.
Preferably, the number of the guide wires 33 is two, in this case, one end of each of the two guide wires 33 is fixed on one surface of the wedge-shaped slider 37 facing the arc-shaped arm 1, and the other end of each of the two guide wires 33 passes through the connecting portion 13, the arc-shaped body 12, and the hollow portion 11 in the arc-shaped arm 1 (where the hollow portion 11 is designed to facilitate the operation in the operation, so that the guide wires 33 pass through the hollow portion 11), until the guide wires extend to the fixing area 2, and the two guide wire ends 331 that penetrate out are pulled simultaneously to enable the wedge-shaped slider 37 and the protrusion 38 to slide relatively, so as to jack up or lower the top pressing pad 35.
After the operation is completed, the guide wire 33 near the arc-shaped arm 1 may be cut off, and the remaining guide wire 33 may be buried in the hollow portion 11 of the arc-shaped arm 1 without being removed.
The utility model discloses a realize like this:
in the operation, open behind the conjunctival sac, will earlier the utility model discloses a near eyeball lateral wall is sent into to the support, avoids main blood vessel and muscle, will fix a position optic fibre and open, seeks the position of location facula under the microscope, under mobile location facula to macula lutea. The apex pad 35 is now outside the scleral wall under the macula;
the fixing area 2 on the arc-shaped arm 1 is fixed on the sclera wall of the eyeball of the patient by sewing;
the patient is tested by utilizing the portable optometry equipment in the prior art or the optometry equipment arranged on the operating microscope, and the adjustable jacking structure 3 is adjusted according to the optometry result until the optometry result shows that the patient is an emmetropia eye.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A novel posterior scleral staphyloma scaffold, comprising: the pressing device comprises at least one arc-shaped arm (1), at least one fixing area (2) and at least one pressing-adjustable structure (3), wherein one arc-shaped arm (1) corresponds to one fixing area (2) and one pressing-adjustable structure (3), and two ends of the arc-shaped arm (1) are respectively connected with the fixing area (2) and the pressing-adjustable structure (3);
the arc-shaped arm (1) is composed of a plurality of arc-shaped bodies (12) with hollow parts (11) and a plurality of connecting parts (13), the arc-shaped bodies (12) are connected in series through the connecting parts (13), and two ends of the arc-shaped arm (1) are respectively connected with the fixing area (2) and the adjustable jacking structure (3) through the connecting parts (13);
the curvature of the arc-shaped arm (1) is suitable for the shape of an eyeball and is used for extending into the back of the eyeball;
the fixing area (2) is used for being fixed on the scleral wall of the eyeball of the patient in a sewing way;
the adjustable jacking structure (3) is used for jacking the sclera outer wall corresponding to the macular region of the retina.
2. The novel posterior scleral staphyloma scaffold of claim 1, wherein: the fixed area (2) is fixedly connected with the arc-shaped arm (1), and the top pressure adjustable structure (3) is movably connected with the arc-shaped arm (1).
3. The novel posterior scleral staphyloma scaffold of claim 1, wherein: the fixed area (2) is one of a straight line shape, a T shape, a Y shape, an F shape, an X shape, a cross shape and a meter shape.
4. The novel posterior scleral staphyloma scaffold of claim 1, wherein: adjustable roof pressure structure (3) comprises a nut (31), a rotatory screw (32), an at least seal wire (33), nut (31) with connecting portion (13) fixed connection, rotatory screw (32) with nut (31) threaded connection, seal wire (33) wind penetrate behind rotatory screw (32) winding several circles in arc arm (1) and extend to fixed area (2), and make follow two lead wire ends (331) are worn out in fixed area (2), make through pulling different lead wire end (331) rotatory back risees, reduces.
5. The novel posterior scleral staphyloma scaffold of claim 4, wherein: the adjustable jacking structure (3) consists of a bottom pressing block (34) fixedly connected with the connecting part (13), a jacking pad (35), a wedge-shaped sliding block (37) provided with a wedge-shaped groove (36), at least one guide wire (33) and a bump (38), wherein the bottom pressing block (34) is positioned at the lower part of the bump (38) and is integrally formed with the bump, the jacking pad (35) is positioned at the upper part of the bump (38) and is movably connected with the bump, the wedge-shaped sliding block (37) is positioned between the bottom pressing block (34) and the jacking pad (35), and the wedge-shaped groove (36) is matched with the bump (38), so that the wedge-shaped sliding block (37) is in sliding connection with the bump (38);
the guide wire (33) penetrates out of the wedge-shaped sliding block (37), then passes through the arc-shaped arm (1) and penetrates out of the two guide wire ends (331) from the fixing area (2), and the wedge-shaped sliding block (37) and the lug (38) slide relatively by pulling the two guide wire ends (331) simultaneously so as to jack up or lower the jacking pad (35).
6. The novel posterior scleral staphyloma scaffold of claim 5, wherein: the friction between the rotating screw (32) and the nut (31) is greater than the eye wall pressure.
7. The novel posterior scleral staphyloma scaffold of claim 6, wherein: the friction between the cam (38) and the wedge-shaped slider (37) is greater than the pressure of the eye wall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022968848.7U CN214632590U (en) | 2020-12-10 | 2020-12-10 | Novel posterior scleral staphyloma support |
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| CN202022968848.7U CN214632590U (en) | 2020-12-10 | 2020-12-10 | Novel posterior scleral staphyloma support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112569044A (en) * | 2020-12-10 | 2021-03-30 | 北京大学第三医院（北京大学第三临床医学院） | Posterior scleral staphyloma stent |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112569044A (en) * | 2020-12-10 | 2021-03-30 | 北京大学第三医院（北京大学第三临床医学院） | Posterior scleral staphyloma stent |
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