Balloon implant for retina detachment surgery

Abstract

The invention relates to a retina detachment surgery balloon implant which comprises an implant rod, a first through hole and a second through hole which are communicated with each other are respectively formed in two end areas of the implant rod; the implantation bag is provided with a balloon part and a balloon neck, the balloon neck is arranged on the implantation rod in a sleeving and sealing mode, and the end, provided with the first through hole, of the implantation rod extends to the balloon part; the water injection valve is arranged at the end, provided with the second through hole, of the implantation rod and used for being connected with an injector and sealing the second through hole after the injector is pulled out. After the implant is implanted into the outer side of a sclera corresponding to a retina hole of a patient, the injector injects water through the water injection valve, so that the water sequentially passes through the second through hole and the first through hole to enter the balloon part of the implantation bag, and the balloon part expands to extrude the sclera and eject the retina hole. When the implant is implanted into the outer side of a sclera corresponding to a retina hole of a patient, the implant rod can keep the shape of the implant bag stable, when the balloon part gradually expands, all parts of the balloon part expand stably, the size of the implant bag is small, and damage to eye tissue is small.

Description

Technical Field

[0001] The invention relates to the technical field of retinal detachment treatment, in particular to a retinal detachment surgery balloon implant. Background Art

[0002] Rhegmatogenous retinal detachment is a common fundus disease that can cause blindness, and external surgery is the main method for treating this disease. Traditional scleral buckling surgery uses silicone or silicone sponge to suture and pressurize the retinal tear outside the sclera. The trauma area is large and complications are prone to occur, leading to surgical failure. Currently, the clinical use of the folding balloon pressure method has turned retinal detachment surgery into a minimally invasive surgery, subverting the traditional silicone or silicone sponge scleral external pressure method. Balloon pressure surgery has the advantages of simple operation, less surgical damage, and saving operation time. It is the preferred method for external surgery of rhegmatogenous retinal detachment.

[0003] However, although the current balloon pressure is a minimally invasive surgery, it still has some shortcomings in practice: (1) the foldable balloon implant is relatively large, resulting in greater damage to the conjunctiva and underlying tissues such as incision and separation; (2) the position of the implanted balloon sometimes shifts during the process of water injection, expansion and expansion, making it difficult to accurately press on the retinal tear, affecting the surgical effect. Summary of the invention

[0004] Based on this, it is necessary to provide a retinal detachment surgery balloon implant to address the problems of greater tissue damage and difficulty in accurately pressing retinal holes in the current folding balloon pressing method.

[0005] The present invention provides a retinal detachment surgery balloon implant, comprising:

[0006] The implant rod has a first through hole and a second through hole connected to each other at both end regions;

[0007] An implant capsule, comprising a balloon portion and a balloon neck, wherein the balloon neck is sleeved and sealed on the implant rod, and one end of the implant rod having a first through hole extends to the balloon portion;

[0008] The water injection valve is arranged at one end of the implant rod having the second through hole, and is used for connecting the syringe and closing the second through hole after the syringe is removed.

[0009] Among them, after the implant is implanted into the outer side of the sclera corresponding to the patient's retinal tear, a syringe injects a filling medium through the water injection valve, so that the filling medium passes through the second through hole and the first through hole in sequence and enters the balloon part of the implant capsule, so that the balloon part expands, squeezes the sclera and presses the retinal tear.

[0010] In one embodiment, the balloon portion of the implant capsule covers the end of the implant rod having the first through hole, and the end surface of the implant rod extends to the bottom of the balloon portion.

[0011] In one embodiment, the first through holes are multiple micro holes distributed on the end wall of the implant rod.

[0012] In one embodiment, the plurality of micropores are evenly distributed in the area covered by the balloon portion on the end wall of the implant rod.

[0013] In one embodiment, the balloon portion of the implant capsule covers the end surface of the implant rod, and the end surface of the implant rod extends to the entrance of the balloon portion.

[0014] In one embodiment, the first through hole is an open opening on the end surface of the implant rod.

[0015] In one embodiment, the first through holes are a plurality of holes located on the end surface of the implant rod.

[0016] In one embodiment, one end of the water injection valve is sealed on the second through hole, and the other end extends outside the eye along the patient's sclera, and the second through hole is an open opening on the end surface of the implant rod.

[0017] In one of the embodiments, the water injection valve is made of silicone gel.

[0018] In one embodiment, the implant rod is made of silicone or rubber, and the implant capsule is made of silicone or rubber.

[0019] When the above-mentioned retinal detachment surgery balloon implant is implanted into the outer side of the sclera corresponding to the patient's retinal tear, the implant rod can maintain the stability of the shape of the implant capsule, which helps to align the position of the balloon part of the implant capsule with the position of the retinal tear. When the syringe injects water through the water injection valve, the doctor can control the water injection valve to keep the position of the balloon part stable. In the process of the balloon part gradually expanding into a balloon, the expansion of each part of the balloon part is relatively stable, and there will be no phenomenon of position displacement caused by uneven local force during the unfolding of the folded balloon. In addition, the folded balloon will be squeezed and deformed by the eye tissue during the implantation process, which also aggravates the possibility of displacement after unfolding. In addition, compared with the folded balloon, the size of the implant capsule is smaller, and it is implanted with the implant rod, which reduces the damage to the eye tissue and improves the surgical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of a balloon implant in an injection state according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Schematic diagram of the balloon implant in the state of injection and expansion;

[0023] Figure 3 for Figure 1 Schematic diagram of another injection expansion state of the balloon implant;

[0024] Figure 4 A schematic diagram of a balloon press for retinal detachment in a patient using the balloon implant of the present invention;

[0025] Figure 5 A schematic diagram of the structure of a balloon implant according to an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of the structure of a balloon implant according to another embodiment of the present invention;

[0027] Figure 7 for Figure 6 Schematic diagram of the balloon implant in the state of injection and expansion;

[0028] Figure 8 The figure is an example of a clinical retinal detachment surgery for a patient using the balloon implant of the present invention.

[0029] Reference numerals:

[0030] 110. implant rod; 120. implant bag; 122. balloon part; 124. balloon neck; 130. water injection valve. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present invention are for illustrative purposes only and do not represent the only implementation method.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] Unless otherwise defined, all technical and scientific terms used in the specification of the present invention have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in the specification of the present invention includes any and all combinations of one or more related listed items.

[0036] Combine the following Figure 1-Figure 8 The retinal detachment surgical balloon implant of the present invention is described.

[0037] like Figure 1As shown, in one embodiment, a retinal detachment surgery balloon implant includes an implant rod 110, an implant capsule 120 and a water injection valve 130, wherein the implant capsule 120 is sleeved on the implant rod 110, and the water injection valve is installed on the implant rod 110. The implant rod 110, the implant capsule 120 and the water injection valve 130 are formed as a whole, and the implant body is divided into an outer wall and an inner core, wherein the outer wall is formed by a layer of implant capsule 120 made of silicone or rubber, and the inner core is formed by the implant rod 110, which is made of a harder non-toxic and harmless medical material, and can also be made of a harder silicone or rubber.

[0038] The two end regions of the implant rod 110 respectively have a first through hole and a second through hole that are interconnected. The implant rod 110 is a support for the implant body, providing support for the implant capsule 120 to be implanted in the desired location. Without the implant rod 110, it is impossible to implant the implant capsule 120 in a designated location with a smaller tissue incision. Optionally, the implant rod 110 has a hollow portion in the axial direction, which is used to connect the first through hole and the second through hole.

[0039] The implant capsule 120 has a balloon portion 122 and a balloon neck 124. The balloon neck 124 is sleeved and sealed on the implant rod 110. One end of the implant rod 110 having the first through hole extends to the balloon portion 122. The balloon portion 122 is elastic and is located at the front end of the implant body. In the initial state, it is close to / fitted to the surface of the implant rod 110. After the filling medium (such as water) is injected by the syringe, it can expand into a spherical shape. Figure 2 and Figure 3 The balloon neck 124 is located between the balloon portion 122 and the water injection valve 130 , and is a transitional portion between the balloon portion 122 and the water injection valve 130 . An implant rod 110 is disposed in the balloon neck 124 .

[0040] The water injection valve 130 is arranged at one end of the implant rod 110 having the second through hole, and is used to connect the syringe and close the second through hole after the syringe is removed. The water injection valve 130 is located at the rear end of the implant body, and is made of silicone gel and has a certain hardness. Optionally, one end of the water injection valve 130 is sealed on the second through hole, and the other end extends outside the eye along the patient's sclera, and the second through hole is an open opening on the end face of the implant rod 110.

[0041] As an option, the water injection valve 130 is integrally formed with the implant rod 110, and is mainly provided as a 30G water injection needle that can freely penetrate into the hollow part of the implant rod 110, and inject water into the balloon part 122 through the implant rod 110. After the needle is pulled out, the water injection valve 130 seals itself and no water leakage occurs.

[0042] Among them, after the implant is implanted into the outer side of the sclera corresponding to the retinal tear of the patient, see Figure 4The syringe injects the filling medium through the water injection valve 130, so that the filling medium passes through the second through hole and the first through hole in sequence and enters the balloon part 122 of the implant capsule 120, so that the balloon part 122 expands and squeezes the patient's eye sclera and presses the retinal hole.

[0043] The retinal detachment surgical balloon implant of this embodiment can maintain the stability of the shape of the implant capsule 120 when implanted into the outer side of the sclera corresponding to the retinal tear of the patient, and it is helpful to align the position of the balloon part 122 of the implant capsule 120 with the position of the retinal tear. When the syringe injects water through the water injection valve 130, the doctor can control the water injection valve 130 to maintain the stability of the position of the balloon part 122, and the expansion of each part of the balloon part 122 is relatively stable during the gradual expansion of the balloon part 122, and the phenomenon of position displacement caused by uneven local force during the expansion of the folded balloon will not occur. In addition, the folded balloon will be squeezed and deformed by the eye tissue during the implantation process, which also exacerbates the possibility of displacement after expansion. In addition, compared with the folded balloon, the size of the implant capsule 120 is smaller, and as the implant rod 110 creates a channel along the scleral surface to push the balloon part 122 close to the retinal detachment tear, the damage to the eye tissue is reduced, and the conjunctival incision is only 3 mm, which improves the surgical effect. In addition, the balloon part 122 expands to press against the retinal tear, and after removing the syringe, the doctor can cut off the excess water injection valve 130, which improves the comfort of the implant after implantation. In addition, the friction between the water injection valve 130 and the eye tissue can also improve the stability of the balloon part 122.

[0044] like Figure 5 As shown, in one embodiment, the balloon portion 122 of the implant capsule 120 covers the end of the implant rod 110 having the first through hole, and the end surface of the implant rod 110 extends to the bottom of the balloon portion 122. The diameter of the balloon implant of this embodiment is about 2.5 to 3 mm, and the length is about 15 mm, wherein the balloon portion 122 is about 10 mm long, and there is a gap between the balloon portion 122 and the implant rod 110, and after water injection, it can be expanded into a spherical balloon, and the balloon diameter can reach 10 to 20 mm. The amount of water injected into the balloon portion 122 can be considered according to the retinal detachment situation. The more water is injected, the larger the volume of the expanded balloon is, and vice versa, the less water is injected, the smaller the volume of the balloon is. If the retinal detachment time is long, the tear is large, or the retinal detachment is high and spherical, a larger balloon top pressure is required, and the amount of water injected into the balloon is more.

[0045] As a preferred embodiment, the first through hole is a plurality of micropores distributed on the end rod wall of the implant rod 110, and the plurality of micropores are evenly distributed in the area covered by the balloon part 122 on the end rod wall of the implant rod 110. The setting of the plurality of micropores is conducive to uniformly injecting water into the balloon part, so that the balloon part 122 expands more stably and avoids sudden changes in shape during the expansion process. As an option, the micropores can be distributed near the end face of the implant rod 110, so that the part of the balloon part 122 close to the end face of the implant rod 110 expands first during water injection, and then gradually expands toward the balloon neck 124. The balloon neck 124 is integrated with the implant rod 110, and is about 2 mm in length. The water injection valve 130 is integrated with the implant rod 110, and is about 5 mm in length. It is mainly provided that the 30G water injection needle can be freely penetrated into the hollow part of the implant rod 110, and water is injected into the balloon part 122 through the hollow part of the implant rod 110. After the needle is pulled out, it is sealed well and does not leak.

[0046] like Figure 6 and Figure 7 As shown, in one embodiment, the balloon portion 122 of the implant capsule 120 covers the end face of the implant rod, and the end face of the implant rod 110 extends to the entrance of the balloon portion 122. The first through hole is an open opening at the end face of the implant rod 110. Preferably, the implant rod 110 can be set as a hollow tube, and the first through hole and the second through hole are two open openings of the hollow tube. Optionally, the first through hole can also be a plurality of holes located at the end face of the implant rod. The implant of this embodiment has a length of about Figure 5 Embodiment 1 / 2: The balloon portion 122 of the implant of this embodiment has a smaller expansion size, which is suitable for retinal holes of smaller sizes and further improves the comfort of the patient's eyes.

[0047] like Figure 8 The figures shown are examples of clinical retinal detachment surgery for patients using the balloon implant of the present invention, wherein: a: preoperative temporal retinal detachment, macula involvement, and tear in the temporal part; b: on the first day after surgery, a high bulge of the balloon can be seen pressing against the ridge of the retina, and the tear is on the ridge; c: on the second day after surgery, laser treatment is performed around the tear; d: 7 days after surgery, the retina is in place, and pigmented laser spots are visible around the tear; e: postoperative ultrasound indicates retinal reposition, and the balloon can be seen pressing against the eyeball, making it concave; f: Ultrasound shows that the balloon implant rod is located in the balloon.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A retinal detachment surgery balloon implant, characterized in that: include: The implant rod has a first through hole and a second through hole connected to each other at both end regions; An implant capsule, comprising a balloon portion and a balloon neck, wherein the balloon neck is sleeved and sealed on the implant rod, and one end of the implant rod having a first through hole extends to the balloon portion; The water injection valve is arranged at one end of the implant rod having the second through hole, and is used for connecting the syringe and closing the second through hole after the syringe is removed. Among them, after the implant is implanted into the outer side of the sclera corresponding to the patient's retinal tear, a syringe injects a filling medium through the water injection valve, so that the filling medium passes through the second through hole and the first through hole in sequence and enters the balloon part of the implant capsule, so that the balloon part expands, squeezes the sclera and presses the retinal tear.

2. The retinal detachment surgery balloon implant according to claim 1, characterized in that: The balloon portion of the implant capsule covers the end of the implant rod having the first through hole, and the end surface of the implant rod extends to the bottom of the balloon portion.

3. The retinal detachment surgery balloon implant according to claim 2, characterized in that: The first through holes are multiple micro holes distributed on the end wall of the implant rod.

4. The retinal detachment surgery balloon implant according to claim 3, characterized in that: The plurality of micropores are evenly distributed in the area covered by the balloon portion on the end wall of the implant rod.

5. The retinal detachment surgery balloon implant according to claim 1, characterized in that: The balloon portion of the implant capsule covers the end surface of the implant rod, and the end surface of the implant rod extends to the entrance of the balloon portion.

6. The retinal detachment surgery balloon implant according to claim 5, characterized in that: The first through hole is an open opening of the end surface of the implant rod.

7. The retinal detachment surgery balloon implant according to claim 5, characterized in that: The first through holes are a plurality of holes located on the end surface of the implant rod.

8. The retinal detachment surgery balloon implant according to any one of claims 1 to 7, characterized in that: One end of the water injection valve is sealed on the second through hole, and the other end extends outside the eye along the patient's sclera. The second through hole is an open opening on the end surface of the implant rod.

9. The retinal detachment surgery balloon implant according to claim 8, characterized in that: The water injection valve is made of silicone gel.

10. The retinal detachment surgery balloon implant according to any one of claims 1 to 7, characterized in that: The implant rod is made of silicone or rubber, and the implant capsule is made of silicone or rubber.

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