Nail-type retinal break sealer and implanter

Abstract

The present invention provides a nail-type retinal tear sealer and implanter, the nail-type retinal tear sealer includes a hydrophobic body, a fixed tip and an electrode handle, wherein: the outer peripheral surface of the hydrophobic body is connected to multiple hydrophobic branches, and the multiple hydrophobic branches can adhere to the hydrophobic liquid to form a hydrophobic liquid mass; the fixed tip can be connected to the retina, and the fixed tip is connected to the first end of the hydrophobic body; the electrode handle is connected to the second end of the hydrophobic body. The present invention utilizes the principle of oil-water incompatibility, so that multiple hydrophobic branches can form a hydrophobic liquid mass at the edge of the retinal tear to prevent the liquid in the vitreous cavity from flowing under the retina, achieving the surgical purpose of sealing the retinal tear in retinal detachment surgery, so that the patient does not need to maintain a prone position after surgery, which not only solves the problem of easy failure of surgery on special patients, but also improves the quality of life of patients, and can also shorten the operation time and increase the success rate of surgery.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a nail-type retinal break sealer and an implanter. Background Art

[0002] Retinal detachment (RD) is the separation of the retinal neuroepithelium and pigment epithelium. It has a very high incidence in the field of fundus diseases. Once it occurs, it seriously affects the patient's vision and even blindness. Most RD patients have rhegmatogenous retinal detachment (rRD, liquefied vitreous enters the potential cavity between the retinal neuroepithelium and pigment epithelium through one or more retinal breaks, resulting in RD). Patients with rRD often require surgical treatment. RRD surgery is divided into two categories, one is external surgery and the other is internal surgery. Internal surgery, namely vitreoretinal surgery, is currently the main surgical method for treating severe RD. When vitreoretinal surgery is used to treat RD, long-term gas or silicone oil needs to be filled during the operation. After the operation, the patient needs to maintain a prone position for a long time (sleeping on his stomach at night and bowing his head during the day. Long-term gas needs to be maintained for 2 to 4 weeks, and silicone oil needs to be maintained for 1 to 3 months). Long-term prone position has a great impact on the patient's quality of life after surgery, especially for patients with advanced age, cervical spondylosis and obesity. It causes great pain after surgery, and often the surgical effect cannot be achieved due to the inability to maintain the prone position, resulting in surgical failure.

[0003] The retinal nails currently used for the purpose of treating retinal detachment are usually simple special titanium nails or special plastics (polyaldehyde), which mechanically penetrate the retina and fix the retina to the choroid (similar to nailing a picture frame to the wall). Since the retinal tissue is homologous to the brain tissue and belongs to the same central nervous system, mechanical fixation has a huge impact on retinal function and can cause retinal dissolution, with very poor results. Summary of the invention

[0004] One object of the present invention is to provide a nail-type retinal break sealer that enables patients to avoid lying in a prone position after surgery.

[0005] Another object of the present invention is to provide an implanter that facilitates implanting the above-mentioned nail-type retinal break sealer into the eyeball.

[0006] To achieve the above object, the present invention provides a nail-type retinal break sealer, which comprises:

[0007] A hydrophobic body, the outer peripheral surface of which is connected to a plurality of hydrophobic branches, wherein the plurality of hydrophobic branches can adhere to the hydrophobic liquid to form a hydrophobic liquid mass;

[0008] A fixing tip, which can be connected to the retina, the fixing tip being connected to the first end of the hydrophobic body;

[0009] The electrode handle is connected to the second end of the hydrophobic body.

[0010] As described above, the nail-type retinal break sealer, wherein the plurality of hydrophobic branches are divided into at least one circle of hydrophobic branch groups, and each circle of the hydrophobic branch group includes at least three hydrophobic branches arranged at intervals.

[0011] The nail-type retinal break sealer as described above, wherein the hydrophobic branch is provided with a plurality of annular portions arranged at intervals.

[0012] The nail-type retinal break sealer as described above, wherein the outer peripheral surface of the fixing tip is provided with at least one annular groove.

[0013] As described above, the nail-type retinal break sealer, wherein the electrode handle has two oppositely disposed clamping planes, and the clamping planes are provided with a plurality of spaced-apart clamping protrusions.

[0014] The nail-type retinal break sealer as described above, wherein the outer peripheral surface of the fixing leg is connected with a plurality of fixing protrusions.

[0015] The nail-type retinal break sealer as described above, wherein the fixing protrusion and the fixing leg are an integral structure.

[0016] The present invention also provides an implanter for implanting the above-mentioned nail-type retinal break sealer into an eyeball, the implanter comprising:

[0017] A grip rod, which is in the shape of a hollow cylinder, and an outer wall surface of the grip rod is provided with at least one mounting hole;

[0018] An implant tube connected to the first end of the grip rod, wherein the interior of the implant tube is connected to the interior of the grip rod to form a guide channel, and the nail-type retinal break sealer is embedded in the implant tube;

[0019] A drive assembly includes a flex arm spring which is arranged in the mounting hole and can be extended and retracted along the radial direction of the gripping rod, wherein the first end of the flex arm spring is connected to the inner wall of the mounting hole, and the second end of the flex arm spring extends into the guide channel and is detachably connected to the electrode handle of the nail-type retinal break sealer. The flex arm spring can be contracted along the radial direction of the gripping rod to push the nail-type retinal break sealer out of the implant tube and separate it from the electrode handle.

[0020] The implanter as described above, wherein the second end of the flexion arm spring is detachably connected to the electrode handle via a connecting assembly.

[0021] The implanter as described above, wherein the connecting assembly comprises a push rod, a first end of the push rod is connected to the second end of the flexure spring, and a clamping portion is provided at the second end of the push rod, and the clamping portion can clamp the electrode handle.

[0022] The implanter as described above, wherein the second end of the flex arm spring is connected to the push rod through a tray.

[0023] As described above, the implanter, wherein the free end of the implant tube is provided with an implantation chamber, the tack-type retinal break sealer is embedded in the implantation chamber, and the implantation chamber is provided with a fixing bracket that can be sleeved on the outside of each hydrophobic branch of the tack-type retinal break sealer.

[0024] Compared with the prior art, the advantages of the present invention are as follows:

[0025] The nail-type retinal tear sealer of the present invention is provided with a plurality of hydrophobic branches and utilizes the principle of oil-water incompatibility, so that the plurality of hydrophobic branches can form a hydrophobic liquid mass at the edge of the retinal tear to prevent the liquid in the vitreous cavity from flowing under the retina, thereby achieving the surgical purpose of sealing the retinal tear in retinal detachment surgery, so that the patient does not need to maintain a prone position (bending over and lowering the head) after the surgery, thereby solving the problem of easy failure of surgery for special patients (such as patients with cervical spondylosis, weak body, obesity, etc.) and improving the quality of life of the patients.

[0026] The nail-type retinal tear sealer of the present invention is provided with electrodes, and if bleeding occurs during the implantation process, the electrodes can be electrically conductively conducted to stop bleeding during puncture.

[0027] The implanter of the present invention embeds the nail-type retinal break sealer in the implant tube, so that the operation of sending the nail-type retinal break sealer into the eye becomes simple and convenient. By providing a flex arm spring, the operation of ejecting the nail-type retinal break sealer becomes simple and convenient, and the staff can operate it with one hand, thereby making the operation of implanting the nail-type retinal break sealer into the eye simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the nail-type retinal break sealer of the present invention;

[0030] Figure 2 yes Figure 1 A schematic diagram of the structure of the nail-type retinal break sealer, in which each hydrophobic branch is in a folded state;

[0031] Figure 3 yes Figure 1 The schematic diagram of the perspective structure of the nail-type retinal break closure device in use;

[0032] Figure 4 is a schematic diagram of the three-dimensional structure of the implanter of the present invention;

[0033] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure of the middle part A;

[0034] Figure 6 yes Figure 4 A perspective structural diagram of the implanter shown;

[0035] Figure 7 yes Figure 6 The enlarged structural diagram of the middle B part;

[0036] Figure 8 It is a perspective structural schematic diagram of the assembly of the nail-type retinal break sealer and the implanter of the present invention;

[0037] Fig. 9 yes Figure 8 The enlarged structural diagram of the middle C part;

[0038] Fig.10 It is a first perspective structural schematic diagram of the implanter of the present invention when it is in use;

[0039] Fig.11 yes Fig.10 The enlarged structural diagram of the middle D part;

[0040] Fig.12 is a second perspective structural schematic diagram of the implanter of the present invention when it is in use;

[0041] Fig.13 yes Fig.12 The enlarged structural diagram of the middle E part;

[0042] Fig.14 This is a schematic structural diagram of a first state in which a nail-type retinal break sealer is implanted into an eyeball using the implanter of the present invention;

[0043] Fig.15 It is a schematic diagram of the structure of pressing the flex arm spring by hand;

[0044] Fig.16 It is a schematic diagram of the structure of the second state in which the nail-type retinal break sealer is implanted into the eyeball using the implanter of the present invention;

[0045] Fig.17 yes Fig.16 The middle F part is an enlarged perspective structural diagram;

[0046] Fig.18It is a schematic structural diagram of a third state in which the nail-type retinal break sealer is implanted into the eyeball using the implanter of the present invention;

[0047] Fig.19 yes Fig.18 The enlarged perspective structural diagram of the middle G section;

[0048] Fig. 20 This is a schematic diagram of the structure of the first usage state of the nail-type retinal break closure device implanted in the eyeball;

[0049] Fig.21 yes Fig. 20 A schematic diagram of the enlarged structure of the middle H part;

[0050] Fig. 22 This is a schematic diagram of the structure of the second usage state of the nail-type retinal break closure device implanted in the eyeball;

[0051] Fig.23 yes Fig. 22 Schematic diagram of the enlarged structure of part I in the middle.

[0052] Description of Figure Numbers:

[0053] 100. Nail-type retinal break closure device;

[0054] 110, hydrophobic body; 111, hydrophobic branches; 112, hydrophobic liquid mass;

[0055] 120, fixed tip; 121, annular groove; 122, step surface;

[0056] 130, electrode handle; 131, clamping plane; 1311, clamping convex teeth;

[0057] 300, implanter;

[0058] 310, grip; 311, mounting hole;

[0059] 320, implant tube; 321, implant chamber; 322, fixation support;

[0060] 330, driving assembly; 331, flexure spring; 332, connecting assembly; 3321, push rod; 33211, clamping portion; 33212, clamping groove; 3322, tray;

[0061] 400. Eyeball; 410. Retinal tear. DETAILED DESCRIPTION

[0062] In order to have a clearer understanding of the technical solution, purpose and effect of the present invention, the specific implementation mode of the present invention is now described in conjunction with the accompanying drawings. Among them, the use of adjective or adverbial modifiers "horizontal" and "vertical", "inside" and "outside" is only to facilitate the relative reference between multiple groups of terms, and does not describe any specific directional restrictions on the modified terms. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0063] Currently, vitrectomy mainly includes the following steps:

[0064] a) Establish three channels in the pars plana of the ciliary body, that is, puncture three holes with a diameter of less than 2 mm on the wall of the eyeball, one channel to establish perfusion and maintain intraocular pressure, another channel to guide the light fiber for intraocular illumination, and the third channel to enter the vitrectomy head, retinal forceps, electrocoagulation / photocoagulation fiber, flute needle and other intraocular operating instruments;

[0065] b) Vitrectomy, which is to remove the vitreous body in the vitreous cavity as much as possible;

[0066] c) Use heavy water or gas-liquid exchange to drain the subretinal fluid and restore the retina to its original position;

[0067] d) Use laser photocoagulation to treat the retina around the hole, which will cause an inflammatory reaction and make the retina and the retinal pigment cell layer (RPE layer) adhere tightly (but the inflammatory period lasts about 2 weeks, so laser photocoagulation can only play the role of adhering the retina for more than 2 weeks);

[0068] e) Vitreous cavity filling, that is, filling the vitreous cavity with gas, long-acting gas or silicone oil, pressing the retina in the vitreous cavity (internal pressure), so that the retina remains attached for at least 2 weeks after surgery (after 2 weeks, the retina and RPE layer around the hole will adhere due to the laser photocoagulation site, and the retina will not detach again). Since long-acting gas or silicone oil are lighter than water, patients should keep their heads down after surgery to allow the gas or silicone oil to press upward on the retina.

[0069] Implementation Method 1

[0070] In order to solve the problem of patients maintaining prone position after surgery and secondary silicone oil removal, Figure 1 As shown, the present invention provides a nail-type retinal break sealer 100, which includes a hydrophobic body 110, a fixing tip 120 and an electrode handle 130, wherein:

[0071] The outer peripheral surface of the hydrophobic body 110 is connected to a plurality of hydrophobic branches 111, each of which extends radially outwardly along the hydrophobic body 110. The plurality of hydrophobic branches 111 can adhere to the hydrophobic liquid to form a hydrophobic liquid mass 112. Each hydrophobic branch 111 is made of a material with good ophthalmic compatibility such as silica gel or silicon sponge, and the hydrophobic branch 111 has good toughness, so that each hydrophobic branch 111 is unfolded (such as Figure 1 as shown) and contraction when subjected to external forces (as shown Figure 2 The hydrophobic branch 111 has a good toughness, which can effectively ensure the area of ​​the hydrophobic liquid group 112. The hydrophobic liquid is a hydrophobic liquid used in ophthalmic surgery, such as silicone oil, heavy silicone oil (heavier than water) or perfluorocarbon. These liquids have been used in clinical practice for a long time and have been proven to have good biocompatibility with intraocular tissues.

[0072] The fixing tip 120 can be fixed between the sclera layers after puncturing the choroid. The fixing tip 120 is connected to the first end of the hydrophobic body 110. Specifically, the fixing tip 120 is made of one or more biocompatible materials. In this embodiment, the material of the fixing tip 120 may include titanium or polymethyl methacrylate or other suitable polymers.

[0073] The electrode handle 130 is connected to the second end of the hydrophobic body 110. Considering that the fixed tip 120 needs to penetrate the choroid to reach the interlayer of the sclera, and the choroid contains rich vascular tissue, occasional bleeding is inevitable during the puncture process. The electrocoagulation / radiofrequency wire is connected through the electrode handle 130 to achieve the purpose of electrocoagulation / radiofrequency hemostasis during the puncture process.

[0074] When using, Figure 1 and Figure 3 As shown, after the retina is repositioned during the operation, laser photocoagulation of the retina around the tear is performed to produce an inflammatory reaction, so that the retina and RPE are tightly adhered, and then each hydrophobic branch 111 is adhered to the hydrophobic liquid (silicone oil), and then the sclera is punctured through the fixed tip 120 to implant the nail-type retinal tear sealer 100 at the edge of the retinal tear 410, so that the hydrophobic liquid spans both sides of the edge of the retinal tear 410, and then the vitreous cavity is filled with intraocular perfusion fluid. Since the hydrophobic liquid has good compatibility with the hydrophobic branches 111, when the vitreous cavity is filled with water, under the action of surface tension, the outside of the hydrophobic body 110 can form a hydrophobic liquid group 112 well, so that the vitreous fluid (aqueous liquid) cannot enter under the retina, so as to achieve the purpose of sealing the retinal tear 410 to maintain retinal reposition. In addition, during the implantation process, if there is bleeding, electrocoagulation can be performed by conducting electricity through the electrode while puncturing.

[0075] The nail-type retinal break sealer 100 of the present invention, by providing a plurality of hydrophobic branches 111 and utilizing the oil-water incompatibility principle, enables the plurality of hydrophobic branches 111 to form a hydrophobic liquid mass 112 at the edge of the retinal break 410 to prevent the liquid in the vitreous cavity from flowing under the retina, thereby achieving the surgical purpose of sealing the retinal break 410 in retinal detachment surgery, so that the patient does not have to maintain a prone position (bending over and lowering the head) after the operation, which not only solves the problem of easy failure of surgery for special patients (such as patients with cervical spondylosis, weak constitution, obesity, etc.), but also improves the patient's quality of life after surgery. In addition, during the implantation process, if there is bleeding, electrocoagulation / radiofrequency hemostasis can be performed through the conduction of the electrode handle 130 while puncturing.

[0076] Further, if Figure 1 As shown, the hydrophobic body 110 is cylindrical, so that the hydrophobic liquid group 112 has a larger coverage area. Of course, the hydrophobic body 110 can also be in the shape of an elliptical column or a prism.

[0077] Further, if Figure 1 As shown, the hydrophobic branch 111 is provided with a plurality of spaced-apart annular portions, which may be circular or elliptical. The inner diameter of each annular portion gradually increases along the extension direction of the hydrophobic branch 111 to increase the compatibility area between the hydrophobic branch 111 and the hydrophobic liquid, thereby ensuring that the volume of the hydrophobic liquid mass 112 formed meets the use requirements.

[0078] In one embodiment of the present invention, Figure 1 and Figure 3 As shown, a plurality of hydrophobic branches 111 are divided into at least one circle of hydrophobic branch 111 groups, and each circle of hydrophobic branch 111 groups includes at least three hydrophobic branches 111 arranged at intervals. Such an arrangement can achieve the purpose of retaining the hydrophobic liquid well. Preferably, the hydrophobic branches 111 of each circle of hydrophobic branch 111 groups are arranged at equal intervals. Of course, in actual use, different numbers of hydrophobic branches 111 can also be arranged according to actual use requirements.

[0079] Furthermore, the hydrophobic branch 111 is in a curved shape. Preferably, the hydrophobic branch 111 is in a conical shape so that the hydrophobic liquid can adhere closely to the retina. Of course, the hydrophobic branch 111 can be in an arc shape.

[0080] Further, if Figure 1 and Figure 3 As shown, the outer peripheral surface of the fixing tip 120 is provided with at least one annular groove 121, so that the outer peripheral surface of the fixing tip 120 is formed with at least one step surface 122, and the step surface 122 faces the hydrophobic body 110, so that the step surface 122 can increase the contact area with the retina, thereby improving the reliability of the connection between the fixing tip 120 and the retina.

[0081] Further, if Figure 1 As shown, the electrode handle 130 has two oppositely arranged clamping planes 131, and a plurality of spaced clamping protrusions 1311 are provided on the clamping planes 131. Specifically, the cross-section of the electrode handle 130 is oblong, and the two opposite planes of the electrode handle 130 are the clamping planes 131. A plurality of spaced clamping protrusions 1311 are provided on the clamping planes 131 in a direction toward the fixed tip 120. Preferably, the cross-section of the clamping protrusions 1311 is rectangular, and the clamping protrusions 1311 are arranged at equal intervals.

[0082] Implementation Method 2

[0083] In order to conveniently implant the nail-type retinal break sealer 100 into the eye, Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the present invention also provides an implanter 300, which is used to implant the above-mentioned nail-type retinal break sealer 100 into an eyeball 400, and the implanter 300 includes a grip rod 310, an implant tube 320 and a drive assembly 330, wherein:

[0084] The grip rod 310 is in the shape of a hollow cylinder. The outer wall surface of the grip rod 310 is provided with at least one mounting hole 311. The mounting hole 311 is located at the middle and lower part of the grip rod 310. When the outer wall surface of the grip rod 310 is provided with a plurality of mounting holes 311, the mounting holes 311 are arranged at equal intervals along the circumference of the grip rod 310. Preferably, the mounting holes 311 are in the shape of a long strip, and the mounting holes 311 extend along the axial direction of the grip rod 310.

[0085] The implant tube 320 is connected to the first end of the grip rod 310, the outer diameter of the implant tube 320 is suitable for the vitrectomy surgical channel, and the interior of the implant tube 320 is connected to the interior of the grip rod 310 to form a guide channel. Preferably, the implant tube 320 and the grip rod 310 are an integrated structure, and the inner diameter of the implant tube 320 is smaller than the inner diameter of the grip rod 310. Of course, the implant tube 320 can also be welded to the first end of the grip rod 310, and a through hole is provided at the first end of the grip rod 310 so that the interior of the implant tube 320 can be connected to the interior of the grip rod 310 through the through hole to form a guide channel. Preferably, the diameter of the through hole is substantially the same as the inner diameter of the implant tube 320. Figure 8 and Fig. 9 As shown, the nail-type retinal break sealer 100 is embedded in the implant tube 320, and the nail-type retinal break sealer 100 can be removed from the implant tube 320 under the action of external force;

[0086] The driving assembly 330 includes a flexure spring 331 which is arranged in the mounting hole 311 and can be extended and retracted along the radial direction of the handle 310. Figure 4 and Figure 5 As shown, a flex arm spring 331 is disposed in each mounting hole 311, the first end of the flex arm spring 331 is connected to the inner wall of the mounting hole 311, the second end of the flex arm spring 331 extends into the guide channel and is detachably connected to the electrode handle 130 of the nail-type retinal break sealer 100, and the flex arm spring 331 protrudes out of the mounting hole 311 along the radial direction of the grip rod 310 to facilitate the pressing operation. The flex arm spring 331 contracts along the radial direction of the grip rod 310 to push the nail-type retinal break sealer 100 out of the implant tube 320 and separate it from the electrode handle 130. Specifically, as shown in FIG. Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, the flex arm spring 331 is pressed to cause the flex arm spring 331 to contract radially along the grip rod 310. At this time, since the first end of the flex arm spring 331 is restricted by the inner wall of the mounting hole 311 and cannot move, the second end of the flex arm spring 331 will move along the guide channel toward the free end of the implant tube 320 until the second end of the flex arm spring 331 extends out of the free end of the implant tube 320. At this time, the flex arm spring 331 pushes the nail-type retinal break sealer 100 out of the implant tube 320 and separates it from the nail-type retinal break sealer 100, and the nail-type retinal break sealer 100 can puncture into the scleral lamella through the fixed tip 120.

[0087] When using, Fig.14 and Fig.15 As shown, the nail-type retinal break sealer 100 is embedded in the implant tube 320, and the free end of the implant tube 320 is filled with a hydrophobic liquid so that each hydrophobic branch 111 can adhere to the hydrophobic liquid to form a hydrophobic liquid mass 112. The grip 310 is held and the implant tube 320 is inserted into the eye through the vitrectomy surgical channel until the free end of the implant tube 320 reaches the front of the retina and faces the edge of the break. Subsequently, the flex arm spring 331 is pressed so that the flex arm spring 331 pushes the nail-type retinal break sealer 100 out of the implant tube 320 and separates it from the nail-type retinal break sealer 100. At this time, as shown in FIG. Fig.16 , Fig.17 , Fig.18 , Fig.19 and Fig. 20 As shown, the nail-type retinal break sealer 100 is fixed between the sclera layers after puncturing the choroid through the fixed tip 120, and each hydrophobic branch 111 can adhere to the hydrophobic liquid to form a hydrophobic liquid group 112 to seal the retinal break 410, thereby preventing the liquid in the vitreous cavity from entering the retina through the retinal break 410. Finally, the nail-type retinal break sealer 100 is withdrawn from the vitrectomy surgical channel.

[0088] The implanter 300 of the present invention embeds the nail-type retinal break sealer 100 in the implant tube 320, so that the operation of sending the nail-type retinal break sealer 100 into the eye becomes simple and convenient. By providing the flex arm spring 331, the operation of ejecting the nail-type retinal break sealer 100 becomes simple and convenient, and the staff can operate it with one hand, thereby making the operation of implanting the nail-type retinal break sealer 100 into the eye simple and convenient.

[0089] Further, if Figure 7 As shown, the free end of the implant tube 320 is provided with an implant chamber 321, and the nail-type retinal break sealer 100 is embedded in the implant chamber 321. The implant chamber 321 can be filled with a hydrophobic liquid, and the implant chamber 321 is provided with a fixing bracket 322 that can be sleeved on the outside of each hydrophobic branch 111 of the nail-type retinal break sealer 100. The outer peripheral surface of the fixing bracket 322 can fit with the inner surface of the implant chamber 321 to ensure that the implant tube 320 can be securely placed in the implant chamber 321 after being inserted into the eye. In addition, the fixing bracket 322 fixes the hydrophobic body 110 so that it always moves axially, which can enable the fixing tip 120 to smoothly puncture into the sclera, so as to facilitate the nail-type retinal break sealer 100 to be embedded in the implant chamber 321.

[0090] In a specific example of this embodiment, Figure 6 As shown, the second end of the flex arm spring 331 is detachably connected to the electrode handle 130 via a connecting assembly 332, and the connecting assembly 332 can make the connection and separation between the flex arm spring 331 and the electrode handle 130 simple and convenient.

[0091] Further, if Figure 7 As shown, the connecting component 332 includes a push rod 3321, a first end of the push rod 3321 is connected to the second end of the flexure spring 331, and the second end of the push rod 3321 is provided with a clamping portion 33211, and the clamping portion 33211 can clamp the electrode handle 130, and the inner surface of the clamping portion 33211 is provided with a clamping groove 33212 that matches the clamping convex tooth 1311 of the electrode handle 130. Through the clamping cooperation between the clamping convex tooth 1311 and the clamping groove 33212, the connection between the clamping portion 33211 and the electrode handle 130 is made more reliable. Specifically, the clamping portion 33211 includes two elastic clamping plates arranged opposite to each other, and the two elastic clamping plates and the push rod 3321 are in a Y shape. The clamping groove 33212 is arranged on the two opposite surfaces of the two elastic clamping plates. Of course, the clamping portion 33211 can also be a sleeve sleeved on the outside of the electrode handle 130.

[0092] Going further, Figure 6As shown, considering that when multiple flex arm springs 331 are provided, in order to facilitate the connection between each flex arm spring 331 and the push rod 3321, a movable tray 3322 is provided in the handle 310, and the second end of the flex arm spring 331 is connected to the push rod 3321 through the tray 3322, so that the connection between each flex arm spring 331 and the push rod 3321 is simple and convenient, and each flex arm spring 331 transmits the thrust to the push rod 3321 through the tray 3322, which can enable the thrust to be transmitted more stably.

[0093] The following is a detailed description of the use of the nail-type retinal break sealer 100 of the present invention in conjunction with the accompanying drawings:

[0094] a) Establishing a conventional minimally invasive vitrectomy channel, that is, establishing three channels in the pars plana of the ciliary body, that is, puncturing three holes with a diameter of less than 2 mm on the 400-degree wall of the eyeball, one channel to establish perfusion and maintain intraocular pressure, another channel to guide the light fiber for intraocular illumination, and the third channel to enter the vitrectomy head, retinal forceps, electrocoagulation / photocoagulation fiber, flute needle and other intraocular operating instruments;

[0095] b) Vitrectomy, i.e., removing the vitreous in the vitreous cavity as completely as possible (it may be removing only the vitreous around the retinal tear 410, or it may be completely or partially removed);

[0096] c) Perform fluid and gas exchange in the vitreous cavity, that is, use heavy water or gas-liquid exchange to drain the subretinal fluid and restore the retina to its original position;

[0097] d) Use laser photocoagulation to treat the retina around the tear, producing an inflammatory response and causing the retina and RPE to adhere tightly;

[0098] e) If Fig.14 As shown, an implanter 300 equipped with a nail-type retinal tear sealer 100 is inserted into the eye through a surgical incision until it reaches the front of the retina and faces the edge of the tear;

[0099] f) Figures 15 to 19As shown, the flex arm spring 331 is pressed, and the flex arm spring 331 pushes the push rod 3321 out of the implant tube 320 through the tray 3322, so that the push rod 3321 pushes the nail-type retinal tear sealer 100 out of the implant tube 320. At this time, the fixed tip 120 of the nail-type retinal tear sealer 100 punctures the choroid at the edge of the retinal tear 410, enters the sclera layer for fixation, and achieves the purpose of sealing the tear. In addition, each hydrophobic branch 111 is in an unfolded state after losing the restriction of the implant tube 320 and the fixing tray 322. Since the implant chamber 321 is filled with a hydrophobic liquid (including but not limited to silicone oil, heavy silicone oil and other hydrophobic liquids suitable for in vivo implantation), each hydrophobic branch 111 can adhere to the hydrophobic liquid to form a hydrophobic liquid group 112, and the hydrophobic liquid group 112 contacts the retina, and each hydrophobic branch 111 does not contact the retina;

[0100] g) If Fig. 20 and Fig.21 As shown, the implanter 300 is withdrawn, so that the nail-type retinal break sealer 100 is free and fixed on the choroidal retina, and the hydrophobic protrusions are wrapped by the hydrophobic liquid mass, covering both sides of the edge of the retinal break 410, so as to prevent the liquid in the vitreous cavity from entering the subretina through the retinal break 410;

[0101] h) If the tear is too large to be covered by a nail-type retinal tear sealer 100, steps e to f may be repeated several times to allow the hydrophobic liquid mass to wrap around the retinal tear. Fig. 22 and Fig.23 As shown, a circle of retinal break 410 sealers are repeatedly implanted around the edge of the retinal break 410 to achieve the purpose of sealing the break;

[0102] i) After the nail-type retinal break sealer 100 is implanted, gas-liquid exchange in the vitreous cavity and filling with vitreous fluid / perfusion fluid can be performed, and gas in the vitreous cavity can also be retained;

[0103] j) The 400° pars plana incision is closed to complete the operation.

[0104] The specific operation processes of steps a to d and i to j are all prior art and will not be described in detail here.

[0105] In summary, the nail-type retinal tear sealer of the present invention, by providing multiple hydrophobic branches and utilizing the oil-water incompatibility principle, enables the multiple hydrophobic branches to form a hydrophobic liquid mass at the edge of the retinal tear to prevent the liquid in the vitreous cavity from flowing under the retina, thereby achieving the surgical purpose of sealing the retinal tear in retinal detachment surgery, so that the patient does not need to maintain a prone position (bending over and lowering the head) after the surgery, which not only solves the problem of easy failure of surgery for special patients (such as patients with cervical spondylosis, weak body, obesity, etc.), but also improves the quality of life of patients;

[0106] The nail-type retinal tear sealer of the present invention is provided with electrodes, and if bleeding occurs during the implantation process, the electrodes can be electrically conductively conducted to stop bleeding during puncture.

[0107] The implanter of the present invention embeds the nail-type retinal break sealer in the implant tube, so that the operation of sending the nail-type retinal break sealer into the eye becomes simple and convenient. By providing a flex arm spring, the operation of ejecting the nail-type retinal break sealer becomes simple and convenient, and the staff can operate it with one hand, thereby making the operation of implanting the nail-type retinal break sealer into the eye simple and convenient.

[0108] The above description is only an illustrative specific implementation mode of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any technician in the field without departing from the concept and principle of the present invention should fall within the scope of protection of the present invention. It should also be noted that the various components of the present invention are not limited to the above-mentioned overall application. The various technical features described in the specification of the present invention can be selected one by one or multiple ones can be selected and used in combination according to actual needs. Therefore, the present invention naturally covers other combinations and specific applications related to the invention point of this case.

Claims

1. A nail-type retinal break sealer, characterized in that: The nail-type retinal break sealer comprises: A hydrophobic body, the outer peripheral surface of which is connected to a plurality of hydrophobic branches, wherein the plurality of hydrophobic branches can adhere to the hydrophobic liquid to form a hydrophobic liquid mass; A fixing tip, which can be connected to the retina, the fixing tip being connected to the first end of the hydrophobic body; The electrode handle is connected to the second end of the hydrophobic body.

2. The nail-type retinal break sealer according to claim 1, characterized in that: The plurality of hydrophobic branches are divided into at least one circle of hydrophobic branch groups, and each circle of the hydrophobic branch group includes at least three hydrophobic branches arranged at intervals.

3. The nail-type retinal break sealer according to claim 1, characterized in that: The drainage branch is provided with a plurality of annular parts arranged at intervals.

4. The nail-type retinal break sealer according to claim 1, characterized in that: The outer peripheral surface of the fixing tip is provided with at least one annular groove.

5. The nail-type retinal break sealer according to claim 1, characterized in that: The electrode handle has two oppositely arranged clamping planes, and a plurality of spaced clamping protruding teeth are arranged on the clamping planes.

6. An implanter for implanting the nail-type retinal break sealer according to any one of claims 1 to 5 into an eyeball, characterized in that: The implanter comprises: A grip rod, which is in the shape of a hollow cylinder, and an outer wall surface of the grip rod is provided with at least one mounting hole; An implant tube connected to the first end of the grip rod, wherein the interior of the implant tube is connected to the interior of the grip rod to form a guide channel, and the nail-type retinal break sealer is embedded in the implant tube; A drive assembly includes a flex arm spring which is arranged in the mounting hole and can be extended and retracted along the radial direction of the gripping rod, wherein the first end of the flex arm spring is connected to the inner wall of the mounting hole, and the second end of the flex arm spring extends into the guide channel and is detachably connected to the electrode handle of the nail-type retinal break sealer. The flex arm spring can be contracted along the radial direction of the gripping rod to push the nail-type retinal break sealer out of the implant tube and separate it from the electrode handle.

7. The implanter according to claim 6, characterized in that The second end of the flexure spring is detachably connected to the electrode handle via a connecting assembly.

8. The implanter according to claim 7, characterized in that The connecting assembly comprises a push rod, a first end of the push rod is connected to the second end of the flexure spring, and a clamping portion is provided at the second end of the push rod, and the clamping portion can clamp the electrode handle.

9. The implanter according to claim 8, characterized in that The second end of the flex arm spring is connected to the push rod through a tray.

10. The implanter according to any one of claims 6 to 9, characterized in that: The free end of the implant tube is provided with an implant chamber, the nail-type retinal tear sealer is embedded in the implant chamber, and the implant chamber is provided with a fixing bracket which can be sleeved on the outside of each hydrophobic branch of the nail-type retinal tear sealer.

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