Implantation stent for double eyelid plastic surgery and method for using the stent

Abstract

The present invention provides an implant bracket for double eyelid plastic surgery and a method for using the bracket. The bracket is used to be implanted inside the upper eyelid to connect the skin and the tarsal plate, and includes: a main body, which is a cylindrical structure; a limiting part, which is arranged at one end of the main body and can protrude radially outward from the main body for limiting; a deformable claw, which is arranged at the other end of the main body and is made of a memory alloy material, and has two structures, a parent phase and a child phase; wherein the child phase structure of the deformable claw is vertically extended along the length direction of the cylinder of the main body or inclined toward the inner side of the cylinder of the main body, and the parent phase structure of the deformable claw is bent toward the outer side of the cylinder of the main body in the radial direction, and the deformable claw returns to the parent phase structure under human body temperature conditions. The bracket has a simple structure, a clever design, a simple and easy method of use, and does not require high technical skills from the operator; the bracket has a stable structure in the human body, is not prone to loosening, and has a long-lasting and stable double eyelid.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a bracket for double-eyelid plastic surgery and a method for using the bracket. Background Art

[0002] Double eyelid plastic surgery, also known as blepharoplasty, mainly includes three surgical methods: buried suture method, incision method and skin grafting method. The buried suture method is widely used because it does not require surgery, is minimally invasive, has a faster recovery after surgery, and does not produce scars. The buried suture method of blepharoplasty is to create an artificial adhesion between the levator palpebrae superioris aponeurosis and the skin tissue in the superficial layer of the tarsus through sutures, forming a double eyelid when the eyelid is opened (eyes open). At present, the surgical process of buried suture blepharoplasty usually includes using a punching tool to locate the hole from the inside to the outside of the upper eyelid, and then burying the suture, burying the knot between the dermis and the tarsus to form an artificial adhesion. The current buried suture method of blepharoplasty has high technical requirements for the operator, the buried suture operation is troublesome, and the problem of loosening of the knot and disappearance of the double eyelid is easy to occur after the operation. Summary of the invention

[0003] The purpose of the present invention is to provide an implant bracket for double eyelid plastic surgery and a method for using the bracket to solve the problems that the existing double eyelid surgery has high technical requirements for the operator, is cumbersome to operate, and the double eyelid easily disappears after the operation.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] An implant bracket for double eyelid plastic surgery, used for implantation inside the upper eyelid to connect the skin and the tarsal plate, comprising:

[0006] The main body is a cylindrical structure;

[0007] A limiting portion, arranged at one end of the main body, capable of protruding radially outward from the main body for limiting position;

[0008] The deformation claw is arranged at the other end of the main body, is made of a memory alloy material, and has two structures of a mother phase and a daughter phase;

[0009] Among them, the sub-phase structure of the deformable claw extends vertically along the length direction of the cylinder of the main body or tilts toward the inner side of the cylinder of the main body, and the parent phase structure of the deformable claw bends toward the outer side in the radial direction of the cylinder of the main body. The deformable claw returns to the parent phase structure under human body temperature conditions.

[0010] In one embodiment of the present application, the main body is a solid cylindrical structure;

[0011] And / or, the limiting portion is a limiting convex ring;

[0012] And / or, the deformable claw includes at least two deformable teeth evenly distributed along the circumference.

[0013] In one embodiment of the present application, the limiting portion includes a plurality of limiting teeth, which are also made of a memory alloy material and have two structures, a parent phase and a child phase. The child phase structure of the limiting tooth extends vertically along the length direction of the cylinder of the main body, and the parent phase structure of the limiting tooth is bent outward in the radial direction of the cylinder of the main body. The limiting tooth returns to the parent phase structure under human body temperature conditions.

[0014] In one embodiment of the present application, the main body is made of elastic silicone material, the limiting teeth of the limiting part are connected to the deformation teeth of the deformation claw in a one-to-one correspondence, and are arranged throughout the main body.

[0015] In one embodiment of the present application, the main body includes a plurality of main columns arranged vertically, and the main columns are connected via elastic sub-columns. The elastic sub-columns are made of memory alloy material and have a wavy, "N"-shaped or "W"-shaped structure.

[0016] In an embodiment of the present application, the limiting teeth of the limiting portion and the deforming teeth of the deforming claw are respectively connected to two ends of the main column.

[0017] In one embodiment of the present application, the main body is adapted to the punching needle on the puncher and can be sleeved on the punching needle.

[0018] In one embodiment of the present application, the main body is a conical cylindrical structure, with a smaller size at one end close to the deformable claw, and the sub-phase structure of the deformable claw is inclined toward the inner side of the cylinder of the main body.

[0019] In one embodiment of the present application, the front end of the punching needle is provided with a tip portion and a conical curved surface portion in sequence, the conical curved surface portion is adapted to the main body portion, and the tip portion is adapted to the sub-phase structure of the deformable claw.

[0020] A method for using an implantable stent for double eyelid plastic surgery, which is applicable to any of the above implantable stents for double eyelid plastic surgery, comprises the following steps:

[0021] Step S100, taking the puncher and the bracket, cleaning and disinfecting them, and placing them in a cold treatment at -5°C to 5°C;

[0022] Step S200, checking the bracket after the cold treatment to ensure that the deformed claws of the bracket are in a sub-phase structural state, and sleeve the bracket after the cold treatment onto the punching needle of the puncher;

[0023] Step S300: according to the surgical site pre-marked and located on the upper eyelid, the punching needle and the bracket thereon are used to punch a hole from the inner side of the upper eyelid to the outer side, and after punching, the punching needle is kept in the upper eyelid for 10 to 60 seconds before being taken out.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides an implantable stent for double eyelid plastic surgery, wherein the stent is provided with a main body of a tubular structure, and a limiting part and a deformable claw are respectively provided at both ends of the main body, wherein the deformable claw is made of a memory alloy material, and the deformable claw is restored to a parent phase structure that is bent outward under human body temperature conditions; during the implantation operation, the stent is sleeved on the punching needle of the puncher through the main body, and the deformable claw is in a sub-phase structure state, and the punching needle and the stent thereon are punched from the inner side of the upper eyelid to the outer side, so that the deformable claw of the stent faces the outer side of the upper eyelid, and the limiting part faces the inner side of the upper eyelid (i.e., the side close to the eyeball) and is implanted in the upper eyelid, so that the stent stays in the tarsal plate and the skin tissue; because the temperature is the human body temperature, the deformable claw is restored to the parent phase structure, and the deformable claw of the parent phase structure cooperates with the limiting part at the other end of the main body to connect the tarsal plate with the skin tissue, thereby achieving double eyelids. The stent of the present invention has a simple structure, an ingenious design, and a simple and easy implantation operation, and does not require high technical skills of the operator; and in the human body, the deformable claw parent phase structure of the stent is stable, not easy to loosen, and the double eyelid is not easy to disappear, and is durable and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application 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 described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the bracket in which the deformable claws are in a sub-phase structure in the first embodiment of the present invention.

[0028] Figure 2 It is a schematic diagram of the three-dimensional structure of the bracket in which the deformable claws are in a parent phase structure in the first embodiment of the present invention.

[0029] Figure 3 It is a schematic diagram of the top view of the bracket with the deformable claws in the parent structure in the first embodiment of the present invention.

[0030] Figure 4 Schematic diagram of the support structure in which the deformable claws are in a sub-phase structure in the second embodiment of the present invention.

[0031] Figure 5 Schematic diagram of the support structure in which the deformable claws in the second embodiment of the present invention present a parent phase structure.

[0032] Figure 6 Schematic diagram of the support structure in which the deformable claws are in a sub-phase structure in the third embodiment of the present invention.

[0033] Figure 7 Schematic diagram of the support structure in which the deformable claws in the third embodiment of the present invention present a parent phase structure.

[0034] Figure 8 Schematic diagram of the support structure in which the deformable claws are in a sub-phase structure in the fourth embodiment of the present invention.

[0035] Fig. 9 Schematic diagram of the support structure in which the deformable claws in the fourth embodiment of the present invention present a parent phase structure.

[0036] Fig.10 Schematic diagram of the support structure in which the deformable claws are in a sub-phase structure in the fifth embodiment of the present invention.

[0037] Fig.11 Schematic diagram of the support structure in which the deformable claws in the fifth embodiment of the present invention present a parent phase structure.

[0038] Fig.12 It is a schematic diagram of the main structure of the puncher.

[0039] Fig.13 It is a schematic diagram of the structure of the hole puncher when viewed from above.

[0040] Fig.14 It is a schematic diagram of the structure of the punch needle.

[0041] Fig.15 It is a structural schematic diagram of the bracket sleeved on the punching needle in the fifth embodiment of the present invention.

[0042] Reference numerals:

[0043] 1. Main body; 11. Main column; 12. Elastic secondary column;

[0044] 2. Limiting part; 21. Limiting teeth;

[0045] 3. Deformed claws;

[0046] 4. Punch; 41. Punch needle; 411. Tip; 412. Conical face removal. DETAILED DESCRIPTION

[0047] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0048] Embodiment 1

[0049] This embodiment provides an implant bracket for double eyelid plastic surgery, which is used to be implanted inside the upper eyelid during double eyelid plastic surgery to connect the skin and the tarsal plate to achieve the effect of double eyelid. The implant bracket includes a main body 1, a limiting part 2 and a deformable claw 3.

[0050] The main body 1 is a cylindrical structure.

[0051] The limiting portion 2 is arranged at one end of the main body 1 and can protrude radially outward from the outside of the main body 1 for limiting positioning.

[0052] The deformable claw 3 is arranged on the other end of the main body 1, and is made of a memory alloy material, and has two structures: a mother phase and a daughter phase. The memory alloy material can be a titanium-nickel alloy material, a cobalt-chromium alloy material, etc. The daughter phase structure of the deformable claw 3 extends vertically along the length direction of the cylinder of the main body 1 or extends obliquely toward the inner side of the cylinder of the main body; the mother phase structure of the deformable claw 3 is bent toward the outer side of the cylinder of the main body 1 in the radial direction. The deformable claw 3 can maintain the daughter phase structure in a low temperature state, and the deformable claw 3 usually maintains a stable daughter phase structure when the temperature is controlled below 5°C; the deformable claw 3 can automatically restore to the mother phase structure within the temperature range of 25°C to 45°C. Therefore, when the deformable claw 3 is implanted in the upper eyelid (upper eyelid), the temperature is under the human body temperature condition of 36±2°C, and it can automatically restore to the mother phase structure.

[0053] like Figures 1 to 3 As shown, specifically, the main body 1 is a solid cylindrical structure, which is used to adapt to the punching needle 41 on the puncher 4, and can be sleeved and fixed on the punching needle 41 to facilitate the implantation operation; and provides stable support and connection for the limiting parts 2 and deformable claws 3 at both ends.

[0054] like Fig.12 and 13 As shown, the puncher 4 includes a main arm and a secondary arm connected at one end, and the main arm and the secondary arm are in the shape of corresponding tweezers and can be pinched together. A punching needle 41 is provided at the open end of the main arm toward the secondary arm. The main body 1 of the stent is adapted to the punching needle 41, and the implantation operation is performed through the punching needle 41.

[0055] The limiting part 2 is located at the rear end of the main body 1 and is a limiting convex ring;

[0056] The deforming claw 3 is located at the front end of the main body 2 and includes at least two deforming teeth, and the deforming teeth are evenly distributed along the circumferential direction of the cylinder of the main body 2 .

[0057] Before the implantation operation, the deformable claw 3 of the implant bracket is in a sub-phase structure state, and is fixed on the punching needle 41 through the main body 2, with the deformable claw 3 facing the tip 411 of the punching needle 41; the punching needle 41 and the bracket thereon are punched from the inner side of the upper eyelid (the side close to the eyeball) to the outer side, and the bracket is implanted in the upper eyelid; the deformable claw 3 returns to the parent phase structure under human body temperature conditions, the punching needle 41 is withdrawn, and the bracket stays in the upper eyelid, and the deformable claw 3 of the parent phase structure cooperates with the limiting part 2 at the rear end of the main body 1 to connect the tarsal plate and the skin to achieve double eyelid.

[0058] The implant bracket has a simple structure and convenient implantation operation. The deformable claws 3 made of memory alloy material are in a parent phase structure under human body temperature conditions, and cooperate with the limiting part 2 to tightly connect the tarsal plate and the skin, which is not easy to loosen, and the double eyelid effect is long-lasting and stable.

[0059] Embodiment 2

[0060] like Figure 4 and Figure 5 As shown, this embodiment provides an implant bracket for double eyelid plastic surgery. The difference from the first embodiment is that the limiting portion 2 is composed of a plurality of limiting teeth 21. The limiting teeth 21 are similar to the deforming teeth of the deforming claws 3 and are also made of memory alloy material, with two structures of a mother phase and a child phase.

[0061] The sub-phase structure of the limiting tooth 21 extends vertically along the length direction of the cylinder of the main body 1; the parent phase structure of the limiting tooth 21 is bent outward in the radial direction of the cylinder of the main body 1; the limiting tooth 21 can automatically restore to the parent phase structure within the temperature range of 25℃~45℃. Therefore, under the human body temperature condition of 36±2℃, the limiting tooth 21 automatically restores to the parent phase structure bent outward in the radial direction.

[0062] The limiting portion 2 is configured as a limiting tooth 21 structure made of a memory alloy material, which presents a sub-phase structure extending vertically along the rear end of the main body 1 during the implantation operation, making it easier to implant the bracket inside the upper eyelid; when reaching the implantation site, the limiting tooth 21 returns to the parent phase structure due to temperature changes, and cooperates with the deformation claw 3 that has returned to the parent phase structure to play a role in limiting and grasping the connection.

[0063] like Figure 4 As shown, the deformable tooth structure of the deformable claw 3 preferably extends along the length direction of the cylinder of the main body 1 and tilts toward the inner side of the cylinder of the main body, so as to avoid bending outward due to tissue resistance during the implantation operation and affecting the implantation of the stent to the preset position, thereby better ensuring the implantation effect.

[0064] Embodiment 3

[0065] like Figure 6 and Figure 7 As shown, this embodiment provides an implant bracket for double-eyelid plastic surgery, which is different from the second embodiment in that its main body 1 is made of elastic silicone material, and the limiting teeth 21 of the limiting part 2 are connected one by one with the deformation teeth of the deformation claw 3, and are arranged through the main body 1.

[0066] That is, the corresponding deforming teeth and limiting teeth 21 are connected as a whole, and the middle part penetrates and is fixed in the main body 1 made of elastic silicone material. The main body 1 is made of elastic silicone material and has elasticity. During the implantation operation, the main body 1 expands and is sleeved on the punching needle 41 of the puncher 4, and the main body 1 is in an extended state; when implanted to the preset position, the deforming claws 3 and the limiting teeth 21 are under human body temperature conditions, and return to the parent phase structure, grasping and connecting the tarsal plate and the skin tissue outside the tarsal plate, and the bracket is fixed inside the upper eyelid; then the punching needle 41 is withdrawn, and the main body 1 shrinks and returns to the initial state. The volume of the main body 1 can be set to a smaller size to reduce the impact on the surrounding tissues after implantation and reduce the foreign body sensation and discomfort of the human body.

[0067] Embodiment 4

[0068] like Figure 8 and Fig. 9 As shown, this embodiment provides an implantable stent for double eyelid plastic surgery, which is different from the second embodiment in that its main body 1 includes a plurality of main columns 11 arranged vertically, and the main columns 11 are connected by elastic sub-columns 12. The elastic sub-columns 12 are also made of memory alloy material, and are in a wavy, "N"-shaped or "W"-shaped structure, with a certain curvature. A plurality of elastic sub-columns 12 are connected to the main column 11 to form a cylindrical main body 1. The elastic sub-column 12 also has two states: a sub-phase structure and a parent phase structure. The sub-phase structure of the elastic sub-column 12 is in an extended state, and the main body 1 in the corresponding state is a larger cylindrical structure; the parent phase structure is in a contracted state, and the corresponding main body 1 is a smaller cylindrical structure. When the temperature is in the temperature range of 25°C to 45°C, the elastic sub-column 12 can automatically return to the parent phase structure.

[0069] The limiting teeth 21 of the limiting portion 2 and the deforming teeth of the deforming claw 3 are respectively connected to the two ends of the main column 11, that is, the corresponding limiting teeth 21, the main column 11 and the deforming teeth are respectively connected to form a whole.

[0070] Before implantation, the elastic sub-column 12 of the stent is in a sub-phase structure, and the main body 1 is stretched to a larger cylindrical structure, which is adapted to the punching needle 41 of the puncher 4 and sleeved on the punching needle 41; the punching needle 41 and the stent thereon punch holes from the inside of the upper eyelid to the outside, and the stent is implanted in the upper eyelid. Under the human body temperature condition of 36±2℃, the deforming teeth and the limiting teeth 21 restore the parent phase structure that is bent outward in the radial direction of the barrel of the main body 1, and grasp the tarsal plate and skin tissue; at this time, the punching needle 41 is withdrawn, and the elastic sub-column 12 also restores the parent phase structure, so that the barrel structure of the main body 1 is reduced. The reduction of the barrel of the main body 1 can effectively reduce the impact of the stent on the surrounding tissue after implantation, reduce the foreign body sensation and discomfort of the human body, and make the connection between the tarsal plate and the skin tissue stable and reliable.

[0071] Embodiment 5

[0072] This embodiment provides an implantable stent for double eyelid plastic surgery, wherein the main body 1 is a conical cylindrical structure, the end close to the deformable claw 3 is smaller in size, and the sub-phase structure of the deformable claw 3 is inclined toward the inner side of the length direction of the cylinder of the main body 1.

[0073] Correspondingly, such as Fig.14 As shown, the front end of the punching needle 41 is provided with a tip 411 and a conical curved surface 412 in sequence, and the conical cut surface 412 is adapted to the main body 1 of the conical cylindrical structure; the inclination of the curved surface of the tip 411 is greater than the inclination of the conical curved surface 412, and is adapted to the sub-phase structure of the deformable claw 3. The tip 411 and the conical curved surface 412 are adapted to the main body 1 of the conical cylindrical structure and the sub-phase structure of the deformable claw 3 inclined inwardly, so that the punching needle 41 is easier to withdraw during the implantation operation; the deformable claw 3 at the front end of the stent is easier to advance, and is not easily bent outward by tissue resistance, and the implantation operation is smoother and more convenient.

[0074] One real-time method is to modify the solid cylindrical structure of the main body 1 into a solid conical structure based on the first and second embodiments; the sub-phase structure of the deformable claw 3 extends in the conical length direction of the main body 1 and tilts inward.

[0075] Another implementation method is, based on Example 3, the main body 1 made of elastic silicone material is modified into a conical cylindrical structure made of elastic silicone material; the sub-phase structure of the deformable claw 3 extends in the conical cylindrical length direction of the main body 1 and tilts inward; the limiting tooth 21 extends vertically at the other end of the main body 1 and fits with the side wall of the punching needle 41.

[0076] Another embodiment is, Fig.10 and Fig.11 As shown, based on the fourth embodiment, the main body 1 is modified into a conical cylinder structure, and its main column 11 and the connected elastic secondary column 12 form a conical cylinder structure. Fig.15 As shown, before the implantation operation, the stent is sleeved on the punching needle 41, and its elastic sub-column 12 is a sub-phase structure, and the main body 1 is a larger conical cylindrical structure, which is adapted to the conical curved surface portion 412 on the punching needle 41; the deformable claw 3 is also a sub-phase structure, which is adapted to the pointed portion 411 on the punching needle 41; the limiting tooth 21 is fitted on the side wall of the punching needle 41.

[0077] The conical curved surface portion 412 is arranged in cooperation with the main body portion 1 of the conical cylindrical structure, so that the bracket can be positioned and sleeved on the punching needle 41, ensuring that the bracket is implanted at a preset position depth, and preventing the bracket from moving further toward the rear of the punching needle 41 during the punching operation; after the punching is completed, the punching needle 41 is easier to separate and withdraw from the bracket, and the punching operation is simpler and smoother.

[0078] Embodiment 6

[0079] This embodiment provides a method for using an implanted stent for double eyelid plastic surgery, which is applicable to the implanted stent for double eyelid plastic surgery described in the above embodiments 1 to 5. The method for using the stent includes the following steps:

[0080] Step S100, take the puncher 4 and the bracket, wash and disinfect them, and place them at -5℃~5℃ for cold treatment. The bracket is cooled to a low temperature state, usually controlled at -2℃~2℃, so that the deformable claws 3 are in an extended sub-phase structural state and remain stable; at the same time, the punching needles 41 on the puncher 4 are also cooled to a low temperature state to prevent the bracket from being affected by the temperature of the punching needles 41 when it is sleeved on the punching needles 41 and rising.

[0081] Step S200, check the bracket after the cold treatment in step S100 to ensure that the deformed claws 3 of the bracket are in the sub-phase structure state; sleeve the bracket with the deformed claws 3 in the sub-phase structure state after the cold treatment on the punching needle 41 of the puncher 4. Usually, the puncher 4 has three punching needles 41, which can sleeve three brackets at a time.

[0082] Step S300, according to the surgical site pre-marked on the upper eyelid (according to the requirements of the surgical design, a positioning mark is made outside the site to be implanted), the punching needle 41 and the bracket sleeved thereon are punched from the inner side of the upper eyelid (close to the eyeball) to the outer side, and after punching, the punching needle 41 is kept in the upper eyelid for 10 to 60 seconds before being withdrawn.

[0083] The punching needle 41 stays in the upper eyelid for a certain period of time before withdrawing. The purpose is to ensure that the temperature of the stent rises to human body temperature, the deformable claw 3 returns to the parent phase structure state, and the stent is connected and fixed with the tarsal plate and skin tissue before the punching needle 41 withdraws, so as to avoid the stent being taken out or displaced when the punching needle 41 withdraws. The time that the punching needle 41 stays in the upper eyelid is usually controlled within the range of 20 to 40 seconds, which can ensure that the stent has restored the parent phase structure and is connected and fixed.

[0084] The method for using the implant bracket for double eyelid plastic surgery of the present invention is suitable for implant brackets made of memory alloy materials, is simple and quick to operate, and does not require high technical skills of the operator; and provides a new double eyelid plastic surgery operation method.

[0085] In the above, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary and non-restrictive in nature.

[0086] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are conventionally placed when used, or are the orientations or positional relationships conventionally understood by those skilled in the art, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0087] The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0088] In the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0089] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0090] The disclosure above provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present invention.

Claims

1. An implant stent for double eyelid plastic surgery, characterized in that: Used to implant inside the upper eyelid, connecting the skin and tarsal plate, including: The main body is a cylindrical structure; A limiting portion, arranged at one end of the main body, capable of protruding radially outward from the main body for limiting position; The deformation claw is arranged at the other end of the main body, is made of a memory alloy material, and has two structures of a mother phase and a daughter phase; The sub-phase structure of the deformable claw is vertically extended along the length direction of the cylinder of the main body or inclined toward the inner side of the cylinder of the main body, and the parent phase structure of the deformable claw is bent toward the outer side of the cylinder in the radial direction of the main body. The deformable claw returns to the parent phase structure under human body temperature conditions; The deformable claw comprises at least two deformable teeth evenly distributed along the circumference; The limiting part includes a plurality of limiting teeth, which are also made of memory alloy material and have two structures, a parent phase and a sub-phase. The sub-phase structure of the limiting teeth extends vertically along the length direction of the cylinder of the main body, and the parent phase structure of the limiting teeth is bent outward in the radial direction of the cylinder of the main body. The limiting teeth return to the parent phase structure under human body temperature conditions; The main body is made of elastic silicone material, the limiting teeth of the limiting part are connected with the deformation teeth of the deformation claw in a one-to-one correspondence, and are arranged through the main body; Or, the main body includes a plurality of main columns arranged vertically, the main columns are connected via elastic sub-columns, the elastic sub-columns are made of memory alloy material, and are in a wavy, "N"-shaped or "W"-shaped structure; the sub-phase structure of the elastic sub-columns is in an extended state, and the main body in the corresponding state is a larger cylindrical structure, the parent phase structure of the elastic sub-columns is in a contracted state, and the corresponding main body is a smaller cylindrical structure; the limiting teeth of the limiting part and the deformation teeth of the deformation claw are respectively connected to the two ends of the main column.

2. The implant stent for double eyelid plastic surgery according to claim 1, characterized in that: The main body is adapted to the punching needle on the puncher and can be sleeved on the punching needle.

3. The implant stent for double eyelid plastic surgery according to claim 2, characterized in that: The main body is of a conical cylindrical structure, with a smaller size at one end close to the deformable claw, and the sub-phase structure of the deformable claw is inclined toward the inner side of the cylinder of the main body.

4. The implant stent for double eyelid plastic surgery according to claim 3, characterized in that: The front end of the punch needle is provided with a tip portion and a conical curved surface portion in sequence, the conical curved surface portion is adapted to the main body portion, and the tip portion is adapted to the sub-phase structure of the deformable claw.

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