Posterior sclera grape swelling treatment support

Abstract

The utility model relates to the field of medical treatment, in particular to a posterior sclera grape swelling treatment support which structurally comprises a support body which is of a foldable fan-ring-like structure. The multiple air bags are arranged on the surface of one side of the support body in a surrounding mode; and the plurality of air guide pipes are respectively communicated with the plurality of air bags. The posterior sclera grape swelling treatment support has the advantages of being small in folding size, easy to take and place and adjustable in supporting range and supporting height, auxiliary treatment can be effectively carried out on grape swelling of various shapes, and the operation difficulty can be reduced.

Description

Technical Field

[0001] The utility model relates to the medical field, in particular to a treatment stent for posterior staphyloma. Background Art

[0002] The myopia situation among teenagers in China is severe. In 2018, the overall myopia rate of teenagers nationwide was 53.6%, and it shows an increasing trend year by year. Most modern medicine believes that high myopia is the result of the combined action of genetics and environment. Among them, a general description of the pathological formation of myopia is that the axial malignant growth of the eyeball causes the eyeball to change from a spherical shape to an ellipsoidal shape, but the vitreous body, retina, and optic nerve inside the eyeball cannot expand accordingly, so various eye diseases will occur, such as posterior staphyloma, myopic arc spot, vitreous body lesion, abnormal pigmentation in the macular area, optic disc tilt, retinal hemorrhage, lacquer crack, choroidal atrophy, neovascularization, visual field defect and other complications. At present, one treatment plan for posterior staphyloma is to support the part where posterior staphyloma appears so that it does not contact other tissues, and then wait for it to be slowly absorbed.

[0003] However, most traditional posterior staphyloma stents are made of rigid materials, with a large volume, resulting in a large surgical wound and difficult to take and place, and the support area and support height are not adjustable, and the versatility or applicability is general. Summary of the Utility Model

[0004] In order to improve the versatility or applicability of the stent and facilitate the taking and placing of the stent, the utility model provides a treatment stent for posterior staphyloma, including: a stent body, the stent body is a foldable fan-shaped ring structure; a plurality of air bags, the plurality of air bags are arranged around one side surface of the stent body; and a plurality of air ducts, the plurality of air ducts are respectively communicated with the plurality of air bags.

[0005] In one or more embodiments, the plurality of air bags are configured to: be arranged at the posterior pole of the eyeball and support the posterior tissue of the eyeball when inflated to protect the posterior staphyloma area surrounded by the plurality of air bags from compression.

[0006] In one or more embodiments, the stent body includes: a flexible substrate, the flexible substrate is in a fan-shaped ring shape; a plurality of elastic keels, the plurality of elastic keels are arc-shaped and are arranged on one side surface of the flexible substrate and are arranged in a fan shape; wherein, the plurality of air bags are arranged around the other side surface of the flexible substrate, and each air bag has an elastic keel corresponding to its back surface.

[0007] In one or more embodiments, at least one air bag is arranged on the substrate on the back of both ends of each elastic keel to form a ring.

[0008] In one or more embodiments, an adjustment part is further included. The adjustment part includes: a plurality of columnar air bags disposed on the inner side surface of the flexible substrate, and the plurality of columnar air bags are respectively disposed between the plurality of elastic keels; a plurality of air guide pipes communicated with the plurality of columnar air bags.

[0009] In one or more embodiments, the flexible substrate further includes: an avoidance part, the avoidance part is recessed from the middle of the arc-shaped side of the flexible substrate towards the center side of the flexible substrate to form an avoidance notch; a plurality of sewing parts, the plurality of sewing parts are respectively arranged on both sides of the flexible substrate and near the center of the circle.

[0010] In one or more embodiments, the opening angle of the stent main body is greater than or equal to 50 degrees and less than or equal to 60 degrees.

[0011] In one or more embodiments, each of the air bags is hemispherical or cylindrical in the inflated state.

[0012] In one or more embodiments, the contraction diameter of each of the air bags is 1-3 mm, and the height when inflated to full bulge is less than or equal to 5 mm.

[0013] In one or more embodiments, a plurality of air volume indicating color rings are sequentially arranged on the circumferential side of each of the air bags from outside to inside, and the colors of the plurality of air volume indicating color rings are different from each other.

[0014] The beneficial effects of the present utility model include: the posterior staphyloma treatment stent of the present utility model has the characteristics of small folding volume, easy to take and place, and adjustable support range and support height, can effectively assist in the treatment of various shapes of staphyloma, and can reduce the surgical difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other embodiments can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of an embodiment of a posterior staphyloma treatment stent according to an embodiment of the present utility model;

[0017] Figure 2 It is a schematic structural diagram of an embodiment of a posterior staphyloma treatment stent with an added adjustment part according to an embodiment of the present utility model;

[0018] Figure 3It is a schematic side view of a structural diagram of a posterior scleral staphyloma treatment stent embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of an embodiment of the distribution of the gas volume indicating color rings of the hemispherical airbag of the utility model;

[0020] Figure 5 It is a schematic diagram of an embodiment of the gas volume indicating color ring distribution of a cylindrical airbag of the utility model.

[0021] The meanings of the reference numerals in the above drawings are as follows:

[0022] 1-stent body, 1-1 flexible substrate, 1-2 elastic keel, 1-3 avoidance part, 2-airbag, 2-1-air volume indicator color ring, 3-air guide tube, 4-suture part, 5-1 columnar airbag. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0024] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0025] In order to improve the versatility or applicability of the stent and facilitate the placement and removal of the stent, the utility model proposes a stent for treating posterior scleral staphyloma, such as Figure 1 As shown, it includes: a stent body 1, which is a foldable fan-like ring structure; a plurality of airbags 2, which are arranged around the surface of one side of the stent body; and a plurality of air guide tubes 3, which are respectively connected to the plurality of airbags 2. Specifically, since the stent for treating posterior scleral staphyloma in the utility model has a large coverage area after being unfolded, it is arranged at the posterior pole of the eyeball and adapted to the shape of the eyeball. During use, it is only necessary to attach one side with the airbag 2 above the staphyloma area of ​​the posterior sclera of the eyeball, and determine the shape of the staphyloma area through the OCT (optical coherence tomography) technology, and inflate the determined airbag 2 through the air guide tube 3 to avoid the staphyloma area, and open other tissues behind the eyeball to prevent them from contacting the staphyloma area, and the propping height can be adjusted by controlling the inflation amount. In this way, the utility model can flexibly adjust the propping area to adapt to the shape of the staphyloma area and arbitrarily adjust the propping height within a certain range.

[0026] In one embodiment, the stent body 1 includes: a flexible substrate 1-1, the flexible substrate 1-1 being in a shape similar to a sector ring; a plurality of elastic keels 1-2, the plurality of elastic keels 1-2 being arc-shaped and arranged on one side surface of the flexible substrate 1-1 in a fan-shaped layout; wherein, a plurality of air bags 2 are arranged on the other side surface of the flexible substrate 1-1, and each air bag 2 has an elastic keel 1-2 corresponding to its back surface. Specifically, the substrate is designed in a shape similar to a sector ring for easy deployment and better fitting to the eyeball after deployment. At the same time, it is not easy to have relative sliding with the eyeball and is convenient for suture fixation; the setting of the arc-shaped keel helps to improve the support of the stent.

[0027] In one embodiment, the stent of the present invention further includes: an avoidance part 1-3, the avoidance part 1-3 being recessed from the middle of the arc-shaped edge of the flexible substrate 1-1 towards the center side of the flexible substrate to form an avoidance notch. Specifically, the notch shape formed by the avoidance part 1-3 includes but is not limited to a semi-circular shape, a rectangular shape or a triangular shape, and its functions include avoiding the optic nerve near the posterior sclera and playing a role in assisting positioning.

[0028] In one embodiment, at least one air bag is arranged on the substrate on the back of each elastic keel to form an annular layout, for inflating the air bag 2 according to the shape of the staphyloma area, so as to avoid the staphyloma area and adjust the support height within a certain range.

[0029] In one embodiment, the posterior staphyloma treatment stent of the present invention further includes: a plurality of suture parts 4, the plurality of suture parts 4 being respectively arranged on both sides and near the center of the flexible substrate 1-1. Specifically, the suture parts 4 are through holes arranged on both sides and near the center of the flexible substrate 1-1, for passing through suture threads to fix the stent to the eyeball scleral wall.

[0030] In one embodiment, as Figure 2 shown, the posterior staphyloma treatment stent further includes an adjustment part, the adjustment part including: a plurality of columnar air bags 5-1 arranged on the inner side surface of the flexible substrate 1-1, and the plurality of columnar air bags 5-1 are respectively arranged between a plurality of elastic keels 1-2 and are located on the narrow side of the sector ring structure; a plurality of air ducts (not shown) communicating with the plurality of columnar air bags 5-1. During use, the opening angle between two elastic keels is adjusted by inflating the corresponding columnar air bag 5-1, so as to realize fine adjustment of the position of the air bag 2.

[0031] In one embodiment, the opening angle of the stent body 1 is greater than or equal to 50 degrees and less than or equal to 60 degrees. Specifically, since the stent for treating posterior scleral staphyloma of the utility model needs to be implanted between the lateral rectus muscle and the inferior oblique muscle, it needs to be curled and sent to the designated position for easy implantation before being unfolded. Therefore, in order to facilitate unfolding and ensure the fit after unfolding, the opening angle of the stent body 1 is greater than or equal to 50 degrees and less than or equal to 60 degrees. If the opening angle is less than 50 degrees, the effective area of ​​the stent body 1 after unfolding is too small, and the staphyloma area cannot be effectively protected. If the opening angle is greater than 60 degrees, the effective area of ​​the stent body 1 after unfolding is too large, and the effective coverage of the eyeball is redundant. In addition to the waste of materials, the overall size after folding is too thick, which is not conducive to surgical implantation.

[0032] In an optional embodiment, the stent body 1 is a flexible sheet with an opening angle of 55 degrees, an inner and outer diameter distance of 12 mm, an unfolded width of 10 mm, and a thickness of 0.2 mm. The material can be PVC (polyvinyl chloride) material, PE (polyethylene) material or medical silicone material with tissue compatibility. The diameter of each elastic keel is 0.4 mm, and the material can be titanium alloy to ensure safety in use.

[0033] In one embodiment, Figure 3 As shown, each airbag 2 is hemispherical or cylindrical in the inflated state. Specifically, the airbag can be formed by splicing two PVC layers; specifically, a ring-shaped airbag 2 is hot-pressed on one of the PVC layers in advance, and one end of the air guide tube is set inside the airbag 2, and then covered with another PVC layer and bonded into a whole (part of the airbag 2 is not bonded), and part of the air guide tube is sandwiched between the two PVC layers.

[0034] In one embodiment, Figure 3 As shown, the deflated (uninflated) diameter of each airbag is 1-3 mm (optionally 1.5 mm), and the height after being fully inflated is less than or equal to 5 mm (optionally 3 mm or 5 mm). Specifically, for a semicircular airbag, the height after being fully inflated means that the height from the apex of its spherical surface to the flexible substrate 1-1 is less than or equal to 5 mm, and for a cylindrical airbag, the height after being fully inflated means that the column height is less than or equal to 5 mm. Specifically, the restriction on the diameter and height of the airbag 2 helps to protect the stretched tissue.

[0035] In one embodiment, Figures 4 - 5As shown, on the circumferential side of each airbag 2, a plurality of air volume indicating color rings 2-1 are sequentially arranged from outside to inside. The colors of the plurality of air volume indicating color rings 2-1 are different from each other and the widths increase sequentially. Specifically, when the airbag is in an uninflated state, the air volume indicating color rings 2-1 are stacked together and cannot be observed from the side. As the airbag is inflated, the air volume indicating color rings 2-1 will slowly rise or expand elastically, so that the air volume indicating color rings 2-1 can be observed from the side of the airbag 2, thereby judging the rising height of the airbag by observing the air volume indicating color rings 2-1, and further assisting the doctor to judge the inflation volume (or the support height).

[0036] In one embodiment, the flexible substrate 1-1, the plurality of elastic keels 1-2 and the plurality of airbags 2 are all prepared from elastic materials with biocompatibility.

[0037] Surgical procedure embodiment

[0038] 1. Fold the stent into a long strip shape and send it through the gap between the lateral rectus muscle and the inferior oblique muscle to the posterior part of the eyeball. Then unfold the long strip-shaped stent so that the wider side of the fan-shaped ring structure covers the area with staphyloma, and set the semi-circular opening (about 6 mm) of the avoidance part 4 on the optic nerve;

[0039] 2. Use the suture part 5 to sew the scleral spacer on the scleral wall of the eyeball with a suture;

[0040] 3. Observe the staphyloma area of the eyeball by using OCT imaging technology, inflate the corresponding airbag 2 to avoid the staphyloma area, and then seal the tracheal opening by means of a plug or tying a knot, so that the airbag is always in an inflated and expanded state;

[0041] 4. Suture the incision and the operation is completed.

[0042] After a period of time, when the staphyloma area has absorbed and shrunk, release the gas inside the airbag, and the stent will be implanted in the eyeball all the time. The beneficial effects of the present invention include:

[0043] The posterior scleral staphyloma treatment stent of the present invention has the characteristics of small folding volume, easy to take and place, and adjustable support range and support height, and can effectively assist in the treatment of staphylomas of various shapes.

[0044] The above are the exemplary embodiments disclosed by the present invention. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments disclosed by the present invention defined by the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments herein do not need to be executed in any specific order. In addition, although the elements disclosed in the embodiments of the present invention can be described or claimed in an individual form, they can also be understood as plural unless explicitly limited to the singular.

[0045] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope (including the claims) disclosed by the embodiments of the present invention is limited to these examples; under the idea of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other variations in different aspects of the embodiments of the present invention as above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention shall be included within the protection scope of the embodiments of the present invention.

Claims

1. A stent for treating posterior scleral staphyloma, characterized in that: include: A support body, wherein the support body is a foldable fan-ring-like structure; A plurality of airbags, the plurality of airbags are disposed around a surface of one side of the bracket body; as well as A plurality of air guide tubes are respectively connected to the plurality of air bags.

2. The posterior scleral staphyloma treatment stent according to claim 1, characterized in that: The multiple air cells are configured to be disposed at the posterior pole of the eyeball and to prop up the posterior eyeball tissue when inflated to protect the posterior scleral staphyloma area surrounded by the multiple air cells from compression.

3. The posterior scleral staphyloma treatment stent according to claim 1, characterized in that: The support body comprises: A flexible substrate, wherein the flexible substrate is in a fan-shaped ring; A plurality of elastic keels, which are arc-shaped, disposed on one side surface of the flexible substrate and arranged in a fan shape; The plurality of airbags are arranged around the other side surface of the flexible substrate, and the back side of each airbag corresponds to the elastic keel.

4. The posterior scleral staphyloma treatment stent according to claim 3, characterized in that: At least one air bag is arranged on the substrate at the back of each elastic keel to form a ring arrangement.

5. The posterior scleral staphyloma treatment stent according to claim 3, characterized in that: The invention also includes an adjustment unit, wherein the adjustment unit includes: A plurality of columnar airbags are arranged on the inner side surface of the flexible substrate, and the plurality of columnar airbags are respectively arranged between the plurality of elastic keels; A plurality of air guide tubes are connected to the plurality of cylindrical air bags.

6. The posterior scleral staphyloma treatment stent according to claim 3, characterized in that: The flexible substrate further comprises: An avoidance portion, wherein the avoidance portion is recessed from the middle of the arc-shaped edge of the flexible substrate toward the center of the circle of the flexible substrate to form an avoidance gap; A plurality of stitching parts are respectively arranged on both sides of the flexible substrate and near the center of the circle.

7. The posterior scleral staphyloma treatment stent according to claim 1, characterized in that: The opening angle of the bracket body is greater than or equal to 50 degrees and less than or equal to 60 degrees.

8. The posterior scleral staphyloma treatment stent according to claim 1 or 3, characterized in that: Each of the airbags is hemispherical or cylindrical in an inflated state.

9. The stent for treating posterior staphyloma according to claim 8, characterized in that: The deflated diameter of each airbag is 1-3 mm, and the height when inflated to be fully expanded is less than or equal to 5 mm.

10. The stent for treating posterior staphyloma according to claim 8, characterized in that: A plurality of gas volume indicating color rings are sequentially arranged on the circumferential side of each air bag from outside to inside, and the colors of the plurality of gas volume indicating color rings are different.

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