Simple pressure applying device for posterior sclera macular region and method for adjusting position of jacking part of simple pressure applying device

Abstract

The invention relates to the field of medical treatment, in particular to a simple pressure applying device for a posterior sclera macular region and a position adjusting method of a top pressing piece thereof, the pressure applying device comprises a flexible substrate, and a plurality of fixing parts are arranged at the edge of the flexible substrate; the flexible pipeline is fixedly arranged on the surface of the flexible substrate to form various shapes; the size of the jacking piece is slightly larger than the diameter of an inner cavity of the flexible pipeline, and the jacking piece can be arranged in the flexible pipeline in a relative sliding mode. The device is simple in structure, small in folding size and capable of being easily fed into the posterior sclera area from the outer side of the orbital bone, the position of a macular area pressure applying structure, namely the jacking part, can be independently adjusted, the device does not need to stretch into the orbital bone for adjustment, surgical operation can be greatly simplified, and surgical risks are reduced.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a simple pressure-applying device for a posterior sclera macular area and a method for adjusting the position of a pressure piece thereof. Background Art

[0002] The situation of myopia among young people in my country is severe. In 2018, the overall myopia rate among young people nationwide was 53.6%, and it has been increasing year by year. Most modern medicine believes that high myopia is the result of the combined effects of genetics and the environment. Among them, a general description of the pathology of myopia formation 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, thus causing various eyeball lesions, such as myopic arcuate spots, vitreous lesions, macular pigment abnormalities, optic disc tilt, retinal hemorrhage, lacquer cracks, choroidal atrophy, neovascularization, visual field defects and other complications. At present, applying pressure to the macular area of ​​the posterior sclera in order to inhibit the axial malignant expansion of the eyeball through physical intervention is an effective means.

[0003] However, since the macular area is located at the posterior sclera and is difficult to observe, traditional macular pressure application devices are difficult to position successfully in one operation, resulting in the need to repeatedly adjust the position or posture of the device during the operation, and surgical tools need to be inserted into the orbital bone for operation and adjustment, which makes the surgical procedure more complicated during the adjustment process. Summary of the invention

[0004] In order to avoid the adjustment from outside the orbital bone and simplify the surgical operation, in the first aspect of the present invention, a simple pressure-applying device for the posterior scleral macular area is proposed, comprising: a flexible substrate, wherein a plurality of fixing parts are provided at the edge of the flexible substrate; a flexible pipe, which is fixed on the surface of the flexible substrate to form a variety of shapes; and a pressing piece, wherein the size of the pressing piece is slightly larger than the inner cavity diameter of the flexible pipe and can be relatively slidably arranged in the flexible pipe.

[0005] In one or more embodiments, the flexible pipe is spiral-shaped, and operating parts are extended from both ends of the spiral flexible pipe, and the inner cavity diameter of the operating part gradually increases with the extension length.

[0006] In one or more embodiments, there are a plurality of the flexible pipes, and the plurality of the flexible pipes are cross-arranged.

[0007] In one or more embodiments, a plurality of protrusions are axially arranged on the outer tube wall of the flexible pipe on the side away from the flexible substrate, and the protrusions are used to assist in applying pressure; and a plurality of grooves that cooperate with the pressing piece and limit the movement of the pressing piece are arranged on the back of the plurality of protrusions.

[0008] In one or more embodiments, the fixing portion includes a suturing fixing area or an adhesive fixing area.

[0009] In one or more embodiments, an avoidance gap is further provided at the edge of the flexible substrate, and the avoidance gap is used to avoid the optic nerve near the macular area of ​​the posterior sclera.

[0010] In one or more embodiments, the shape of the flexible substrate includes: quasi-circular, quasi-elliptical, quasi-triangular, quasi-peach-shaped, quasi-sector-shaped or quasi-rectangular.

[0011] In one or more embodiments, the simple pressure-applying device for the posterior sclera macular area of ​​the present invention further includes: an adjusting member, which is detachably connected to the flexible pipe and is used to adjust the position of the top pressure member in the flexible pipe.

[0012] In one or more embodiments, the adjusted component includes: an electric pump or a syringe, wherein the outlet pressure of the electric pump is adjustable.

[0013] In the second aspect of the present invention, a method for adjusting the position of a pressure piece of a simple pressure-applying device for the macular area of ​​the posterior sclera in the above-mentioned embodiments is proposed, the method comprising: folding the simple pressure-applying device and sending it to the posterior sclera and unfolding it, attaching the flexible tube to the posterior sclera, and keeping the two end openings of the flexible tube exposed to the outside of the orbital bone; inserting the pressure piece into the flexible tube through any open end, and moving the pressure piece by blowing air into the flexible tube; observing the moving position of the pressure piece in real time through OTC imaging, and stopping blowing air when the pressure piece moves to the top of the macular area of ​​the posterior sclera and gets stuck in the groove.

[0014] The beneficial effects of the present invention include: the device of the present invention has a simple structure, a small folded volume, and is easily delivered from the outside of the orbital bone to the posterior sclera area; the position of the pressure-applying structure for the macular area, namely the top pressure piece, is independently adjustable, and there is no need to probe into the orbital bone for adjustment, which can greatly simplify surgical operations and reduce surgical risks; in conjunction with OCT imaging technology, the top pressure piece can be quickly pushed into a predetermined groove for fixation, thereby achieving precise and stable pressure on the macular area. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0016] Figure 1It is a schematic structural diagram of a simple pressure-applying device for the posterior sclera macular area according to the first embodiment of the present invention; Figure 2 It is a schematic structural diagram of a simple pressure-applying device for the posterior sclera macular area according to the second embodiment of the present invention; Figure 3 It is a schematic structural diagram of a simple pressure-applying device for the posterior sclera macular area according to the third embodiment of the present invention; Figure 4 It is a schematic diagram of a first connection method for fixing the flexible pipe and the extension portion in the first to third embodiments of the present invention; Figure 5 It is a schematic diagram of a second connection method for fixing the flexible pipe and the extension part in the first to third embodiments of the present invention. DETAILED DESCRIPTION

[0017] In order to make the objectives, 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.

[0018] 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.

[0019] In order to avoid the adjustment from outside the orbital bone and simplify the surgical operation, the present invention proposes an embodiment of a simple pressure-applying device for the posterior scleral macular area, such as Figure 1 As shown, it includes: a flexible substrate 10, a plurality of fixing parts 20 are provided at the edge of the flexible substrate 10; a flexible pipe 30, which is fixed on the surface of the flexible substrate 10 to form a variety of shapes; and a top pressing piece 40, the size of which is slightly larger than the inner diameter of the flexible pipe 30, and can be relatively slidably arranged in the flexible pipe 30. Among them, the shape of the flexible pipe 30 determines the travel route of the top pressing piece, so as to achieve at least one of the following purposes, such as avoiding the optic nerve, increasing the probability of the route passing above the macular area, or reducing the folding volume. The device can adjust the position of the top pressing piece 40 by blowing air or injecting physiological saline into the flexible pipe 30, avoiding the adjustment by using surgical tools to reach in from outside the orbital bone, thereby greatly simplifying the surgical operation.

[0020] Specifically, Figure 1As shown, the middle section of the flexible pipe 30 in this embodiment is spirally arranged on the flexible substrate 10, and the two ends of the flexible pipe 30 are opened to extend with an operating part, and the inner diameter of the operating part gradually increases with the extension length. This embodiment realizes the use of a flexible pipe to increase the probability of the channel being located above the macular area; a quasi-elliptical flexible substrate 10 is also arranged on one side of the flexible pipe 30. The substrate in this embodiment is mainly used as a carrier of the flexible pipe to fix the flexible pipe, and it has four fixing parts H, I, J, and K for fixing with the sclera respectively. In this embodiment, since the flexible pipe forms a large disc-shaped area, it is easy to cover the macular area, so that it almost does not need to be adjusted again after being sent to the posterior sclera, and it only needs to control the top pressure piece to stay just above the macular area in the later stage. Optionally, the flexible substrate 10 in this embodiment can also be quasi-circular, quasi-sectoral or quasi-triangular, wherein when the substrate is quasi-triangular, a spiral flexible pipe 30 can be arranged in the center of the triangle, and fixing parts 20 can be arranged at the three corners. During use, when the pressing member 40 is delivered to the upper part of the macular area, the free end of the flexible pipe 30, namely the operating part, can be cut off.

[0021] In an optional embodiment, the fixing parts 20 at the four corners of H, I, J, and K can also be replaced by adhesive areas to achieve adhesive fixation between the four corners of H, I, J, and K and the sclera. Specifically, the adhesive areas in this embodiment can be formed of an adhesive material with biocompatibility.

[0022] In one embodiment, the fixing portion 20 may be a suture area formed by a circular hole to achieve fixation between the substrate 10 and the sclera by suturing.

[0023] In one embodiment, a plurality of protrusions (not shown) are provided on the center line of the outer wall of the flexible tube 30 away from the flexible substrate 10 , and the protrusions contact the sclera, so that when the pressing member 40 stays above the protrusions, compression is assisted.

[0024] In an optional embodiment, the heights of the plurality of protrusions are different so as to adjust the height of the protrusion above the macular area according to on-site conditions, thereby achieving fine-tuning of the pressure intensity.

[0025] In another optional embodiment, a plurality of grooves are provided on the back of the plurality of protrusions, and the grooves are used to assist in fixing the top pressing piece 40. When in use, when the spherical top pressing piece 40 or the ellipsoidal top pressing piece 40 moves to the top of the groove, it will sink into the groove, thereby increasing the sliding resistance of the top pressing piece 40, preventing it from sliding easily during subsequent use, and because the wall of the flexible pipe is relatively thin, the protrusions also provide a certain depth space for setting the grooves.

[0026] In another optional embodiment, the groove may also be provided on the tube wall on one side relative to the protrusion (ie, on the side of the flexible substrate 10 ), and in this case, the groove may be punched out to achieve the desired effect.

[0027] In an optional embodiment, the flexible pipe 30 has operating parts extending from both ends of the openings, and one end of the operating part is detachably connected to the substrate by inserting into a notch preset on the substrate, or one end of the operating part is detachably connected to the substrate through an adhesive area preset on the operating part. The detachable design of one end of the operating part in this embodiment facilitates the storage and organization of the device.

[0028] In one embodiment, the fixing portion 20 can also be a plurality of protrusions, which are either continuously distributed or spaced apart from each other, and each protrusion can be sutured and fixed with the ocular biological tissue; or the protrusion has its own hook-shaped sharp fixing claws, including a two-claw or three-claw or multi-claw structure, through which the fixing claws are inserted into the ocular biological tissue to achieve fixation between the flexible tube and the sclera.

[0029] In one embodiment, a plurality of mutually spaced protrusions (not shown) are provided on the center line of the outer surface of the flexible tube 30 that is in contact with the sclera in the axial direction, so that when the pressing member stays on the protrusion, the pressing member is assisted to perform superimposed compression on the edge of the macular area. Preferably, the protruding height H of the protrusion is between [0.6 mm, 1 mm], so that it can be superimposed with the pressing member to increase the pressure effect.

[0030] In an optional embodiment, the heights of the plurality of protrusions are different so as to adjust the height of the protrusions above the macular area according to on-site conditions, thereby achieving fine-tuning and compensation for the pressure on different eye structures.

[0031] In another optional embodiment, a plurality of grooves are provided on the back of the plurality of protrusions, which cooperate with the top pressing piece 40 and limit the movement of the top pressing piece 40. When in use, when the spherical top pressing piece or the ellipsoidal top pressing piece moves to the top of the groove, it will sink into the groove, thereby increasing the sliding resistance of the top pressing piece and preventing it from sliding easily during subsequent use, and the protrusions provide a certain depth space for setting the groove. At the same time, when the protrusion on the outer wall of the flexible pipe corresponding to the position of the posterior sclera is captured by OCT, the position simultaneously defines the position of the corresponding groove and faces the macular area. With the cooperation of OCT, the top pressing piece can be quickly pushed into the predetermined groove for fixing, so as to achieve accurate and stable pressure on the macular area.

[0032] In a further embodiment, the flexible substrate 10 of the simple pressure-applying device for the posterior scleral macular region of the present invention is disposed on one side of the flexible pipe 30 and is at least partially attached to the flexible pipe 30, and is located in the middle section of the flexible pipe 30 or extends around the axial direction of the flexible pipe, and an avoidance notch 50 is also provided at the edge of the flexible substrate 10. The shape of the flexible substrate 10 includes a quasi-circular, quasi-elliptical, quasi-triangular, quasi-peach-shaped, quasi-sector-shaped or quasi-rectangular.

[0033] In one embodiment, see Figure 2 , the fixing method of the flexible pipe 30 also includes: a rectangular flexible substrate 10 is also provided on one side of the flexible pipe 30. The rectangular flexible substrate 10 can increase the contact area with the sclera on one hand, further enhancing the auxiliary fixing effect, and on the other hand, it can also play a main fixing role by suturing and fixing the four corners A, B, C, and D to the sclera respectively or connecting the four corners in pairs to form a ring to be set on the sclera and avoid the pupil; and in this embodiment, multiple flexible pipes 30 can be provided, such as the two independent flexible pipes 30 shown in this embodiment, and the two independent flexible pipes are arranged crosswise, allowing the macular area to be reached from different angles and paths, facilitating flexible selection during the operation, thereby further reducing the probability of needing to adjust the position of the flexible pipe and the flexible substrate 10; in addition, the flexible substrate 10 in this embodiment extends to all sides along the axial direction of the flexible pipe 30, and an avoidance gap 50 is provided at the edge of the flexible substrate 10, and the avoidance gap 50 is used to avoid the optic nerve or pupil at the posterior sclera. During use, the flexible substrate 10 needs to be folded according to the alignment of the AD and BC angles, and then the AD angle or the BC angle is sent from the side of the orbital bone to the posterior sclera to unfold, and the AD angle or the BC angle is pulled out of the orbital bone from the other side, and then any of the four corners A, B, C, and D can be inserted into a top pressure piece, such as a small ball. After the small ball is in place, the four corners are sutured and fixed to the sclera respectively, or after the AD and BC corners are sutured to each other, the arc between AB and the arc between CD form a ring and are clamped on the sclera of the eyeball and fixed to avoid the pupil. Among them, the latter fixation method can reduce the difficulty of surgery and damage to the eyeball, and the arc between AD or BC is used to avoid the optic nerve.

[0034] In an optional embodiment, the fixing portions 20 at the four corners A, B, C, and D may also adopt adhesive fixing areas to achieve adhesion between the AD angle and the BC angle, or to achieve adhesive fixation between the four corners A, B, C, and D and the sclera.

[0035] In one embodiment, a plurality of protrusions (not shown) are provided on the center line of the outer wall of the flexible pipe 30 away from the flexible substrate 10 , so that when the pressing member stays on the protrusions, compression is assisted.

[0036] In an optional embodiment, the heights of the plurality of protrusions are different so as to adjust the height of the protrusion above the macular area according to on-site conditions, thereby achieving fine-tuning of the pressure intensity.

[0037] In another optional embodiment, a plurality of grooves are provided on the inner tube wall behind the plurality of protrusions, and the grooves are used to assist in fixing the top pressing piece 40. When in use, when the spherical top pressing piece or the ellipsoidal top pressing piece moves above the groove, it will sink into the groove, thereby increasing the sliding resistance of the top pressing piece and preventing it from sliding easily during subsequent use, and the protrusions provide a certain depth space for setting the grooves.

[0038] In another optional embodiment, the groove may also be provided on the tube wall on one side relative to the protrusion (ie, on the side of the flexible substrate 10 ), and in this case, the groove may be punched out to achieve the desired effect.

[0039] In one embodiment, only one flexible pipe may be provided on one side surface of the flexible substrate 10, and the flexible substrate 10 only needs to be provided in the middle section of the flexible pipe to reduce the overall volume of the device and facilitate deployment. Moreover, since there are fewer fixing points, surgical fixation is more convenient.

[0040] For details, see Figure 3 In this embodiment, an elliptical or peach-shaped flexible substrate 10 is provided on one side of the flexible tube 30. The flexible substrate 10 is S-shaped as a whole. On the one hand, the flexible substrate 10 can increase the contact area with the sclera, thereby playing an auxiliary fixation role. On the other hand, it can also form a single-sided ring by suturing the two ends of E and F to the sclera or connecting the two ends of EF to play a major fixation role. Compared with the previous embodiment, this embodiment only has an independent flexible tube 30, which has the advantages of small size, thin folded thickness, and easier delivery to the posterior sclera. In addition, the flexible substrate 10 almost does not need to be folded, and only one end needs to be inserted from one side of the orbital bone and pulled out from the other end. The surgical process is simpler than the previous embodiment, and an avoidance gap 50 is also provided at the edge of the flexible substrate 10 to avoid the optic nerve at the posterior sclera.

[0041] In an optional embodiment, the fixing parts 20 at the two corners EF can also adopt adhesive fixing areas to achieve adhesion between the E and F corners, or to achieve adhesive fixation between the E and F corners and the sclera.

[0042] In one embodiment, a plurality of protrusions (not shown) are further provided on the center line of the flexible pipe 30 away from the flexible substrate 10 , so that when the pressing member stays on the protrusions, compression is facilitated.

[0043] In an optional embodiment, the heights of the plurality of protrusions are different so as to adjust the height of the protrusion above the macular area according to on-site conditions, thereby achieving fine-tuning of the pressure intensity.

[0044] In another optional embodiment, a plurality of grooves are arranged on the inner tube wall of the flexible tube away from the posterior sclera corresponding to the protrusions, which cooperate with the top pressing piece and limit the movement of the top pressing piece. When in use, when the spherical top pressing piece or the ellipsoidal top pressing piece moves above the groove, it will sink into the groove, thereby increasing the sliding resistance of the top pressing piece and preventing it from sliding easily during subsequent use, and the protrusion provides a certain depth space for setting the groove.

[0045] In another optional embodiment, the groove may also be provided on the tube wall on one side relative to the protrusion (ie, on the side of the flexible substrate 10 ), and in this case, the groove may be punched out to achieve the desired effect.

[0046] In one embodiment, the flexible pipe 30 and the flexible substrate 10 can be fixed in the following manners: Figure 4 or Figure 5 As shown in the figure, the advantages of the two fixing methods are: Figure 4 The cylindrical structure of the flexible pipe is maintained, making it easier for the top pressure piece to move in the flexible pipe cavity. Figure 5 Part of the cavity wall of the flexible channel is replaced by the flexible substrate 10, so that the thickness of the entire device is thinner and it is easier to deliver from the orbital bone side.

[0047] In one embodiment, the top pressure piece 40 includes: a spherical top pressure piece or an ellipsoidal top pressure piece. Specifically, in an optional embodiment, the top pressure piece 40 is designed to be spherical, which is easier to move, and has a diameter of 1-3 mm. The diameter of the ball is slightly larger than the inner cavity diameter of the flexible pipe in a natural state, so that the ball can stay stably at any position when it is set in the cavity; in another optional embodiment, the top pressure piece 40 is designed to be ellipsoidal, which is easier to be inserted from the orbital bone side and provides a larger pressure area to act on the macular area. The thickness of the ellipsoid is 1-3 mm, the length is 3-5 mm, and when using OCT imaging, its scattering surface is larger, and it is easier to form a clear OTC image.

[0048] In one embodiment, the top pressure piece 40, the flexible substrate 10 and the flexible pipe 30 are all made of human tissue compatible materials to avoid immune rejection reactions. Optional materials include medical silicone materials, PVC (polyvinyl chloride) materials and / or PE (polyethylene).

[0049] In one embodiment, the size of the pressing member can be adjusted according to actual conditions.

[0050] In an optional embodiment, in each of the above embodiments with a flexible substrate 10, the flexible pipe 30 is made of medical silicone material, and the flexible substrate 10 is made of PVC (polyvinyl chloride) material or PE (polyethylene) material to provide a certain degree of support (slightly elastic or inelastic).

[0051] In the second aspect of the present invention, based on the simple pressure-applying device for the macular area of ​​the posterior sclera in the above-mentioned embodiments, the present invention further proposes a method for adjusting the position of a pressure piece of the simple pressure-applying device for the macular area of ​​the posterior sclera, the method comprising: step S1, folding the simple pressure-applying device and sending it to the posterior sclera and unfolding it, attaching the flexible tube to the posterior sclera, and keeping the two end openings of the flexible tube exposed to the outside of the orbital bone; step S2, inserting the pressure piece into the flexible tube through any open end, and moving the pressure piece by blowing air into the flexible tube; step S3, observing the moving position of the pressure piece in real time through OTC imaging, and stopping blowing air when the pressure piece moves to above the macular area of ​​the posterior sclera.

[0052] Specifically, OTC imaging is called Optical Coherence Tomography (OCT). This technology is based on the principle of low-coherence interference of light. It obtains the backscattered light of the sample, and reconstructs the two-dimensional tomographic or three-dimensional structural image of the sample by demodulating and processing the interference signal. In the process of positioning using OTC imaging, the macular area is slightly concave compared to other areas of the posterior sclera, so the macular area can be located. Similarly, the protrusion on the top pressure piece 40 or the flexible pipe 30 will also cause the shape change at the interface between the posterior sclera and the lens. The position of the protrusion on the top pressure piece 40 or the flexible pipe 30 can be indirectly located by observation using the OTC image. When the protrusion image formed by the top pressure piece 40 coincides with the position of the macular area, the inflation or injection of saline can be stopped. At this time, the top pressure piece 40 stays just above the macular area, thereby achieving compression of the macular area.

[0053] The solution of this embodiment is simple to operate and does not require the use of surgical tools to probe into the orbital bone to adjust the position of the pressing piece, thereby greatly simplifying the surgical operation process.

[0054] The above are exemplary embodiments disclosed in the present invention, but it should be noted that various changes and modifications may be made without departing from the scope of the embodiments disclosed in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order.

[0055] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept 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 changes in different aspects of the above embodiments of the present invention, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A simple pressure-applying device for the posterior sclera macular area, characterized in that: include: A flexible substrate, wherein a plurality of fixing parts are provided at the edge of the flexible substrate; A flexible pipe is fixed on the surface of the flexible substrate to form a variety of shapes; A pressing piece, the size of which is slightly larger than the inner cavity diameter of the flexible pipe, and can be relatively slidably arranged in the flexible pipe.

2. The simple pressure-applying device for the posterior sclera macular area according to claim 1, characterized in that: The flexible pipe is in a spiral shape, and operating parts are extended from both ends of the spiral flexible pipe. The inner cavity diameter of the operating part gradually increases with the extension length.

3. The simple pressure-applying device for the posterior sclera macular area according to claim 1, characterized in that: There are a plurality of flexible pipes, and the plurality of flexible pipes are cross-arranged.

4. The simple pressure-applying device for the posterior sclera macular area according to claim 2 or 3, characterized in that: A plurality of protrusions are axially arranged on an outer tube wall of the flexible tube at a side away from the flexible substrate, the protrusions being used to assist in applying pressure; and A plurality of grooves which cooperate with the pressing piece and limit the movement of the pressing piece are arranged on the back side of the plurality of protrusions.

5. The simple pressure-applying device for the posterior sclera macular area according to claim 1, characterized in that: The fixing portion includes a suturing fixing area or an adhesive fixing area.

6. The simple pressure-applying device for the posterior sclera macular area according to claim 5, characterized in that: An avoidance gap is also provided at the edge of the flexible substrate, and the avoidance gap is used to avoid the optic nerve near the macular area of ​​the posterior sclera.

7. The simple pressure-applying device for the posterior sclera macular area according to claim 1, characterized in that: The shape of the flexible substrate includes: quasi-circular, quasi-elliptical, quasi-triangular, quasi-peach-shaped, quasi-sector-shaped or quasi-rectangular.

8. The simple pressure-applying device for the posterior sclera macular area according to claim 1, characterized in that: Also includes: An adjusting member is detachably connected to the flexible pipe and is used to adjust the position of the pressing member in the flexible pipe.

9. The simple pressure-applying device for the posterior sclera macular area according to claim 8, characterized in that: The adjustable part includes: an electric pump or a syringe, wherein the outlet pressure of the electric pump is adjustable.

10. A method for adjusting the position of a top pressure piece of a simple pressure-applying device for the posterior sclera macular area according to any one of claims 1 to 9, characterized in that: The method comprises: The simple pressure-applying device is folded and sent to the posterior sclera and unfolded, and the flexible tube is attached to the posterior sclera, and the openings at both ends of the flexible tube are kept exposed to the outside of the orbital bone; Insert the pressing piece into the flexible pipe through any open end, and move the pressing piece by blowing air into the flexible pipe; The moving position of the pressing piece is observed in real time by OTC imaging, and the inflation is stopped when the pressing piece moves to just above the macular area of ​​the posterior sclera and is stuck in the groove.

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