Nail grabber and membrane nail mounting tool

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a nail grabber and a membrane nail mounting tool, the nail grabber comprises a body and a limiting mechanism, the body is provided with a nail grabbing end, the end face of the nail grabbing end is provided with a containing hole for containing the head of a membrane nail, and the nail grabbing end has magnetism to magnetically attract the membrane nail; the limiting mechanism is installed on the body and comprises a driving piece and a limiting piece, the driving piece is connected with the limiting piece, and the driving piece drives at least part of the limiting piece to move to the inner side of the containing hole so as to seal a partial area of an opening of the containing hole, on one hand, the head of the film nail can be fixed in the containing hole through magnetic attraction, and the falling risk of the film nail can be reduced; the grabbing success rate of the membrane nail is improved, and the nail taking operation is simplified; and on the other hand, the head of the membrane nail can be blocked by the limiting piece, the membrane nail is difficult to come out of the containing hole, the falling risk of the membrane nail can be better reduced, the grabbing success rate of the membrane nail can be improved, and nail taking operation is simplified.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical devices, and particularly relates to a nail grabber and a membrane nail installation tool. BACKGROUND

[0002] In oral implant surgery, a membrane nail is used to fix a mechanical barrier membrane (such as a collagen membrane or a titanium membrane), maintain a bone regeneration space, prevent soft tissue from invading, and support bone powder material, so as to provide a stable microenvironment for bone defect repair, help the soft tissue repair and healing process, reduce displacement and instability, and help the surgery to be successful and the patient to recover.

[0003] The membrane nail is usually used in cooperation with a membrane nail installation tool. The membrane nail installation tool includes a nail mounting box, a nail grabber, and a hole guide. The nail mounting box has a receiving hole, and the membrane nail is installed in the receiving hole. In use, the membrane nail is first mounted in the nail mounting box, and then sterilized. Then, the nail mounting box is taken to the operating table. The tip of the hole guide is used to punch a positioning hole in the area where the membrane nail is to be installed. The nail grabber takes the membrane nail out of the nail mounting box, and fixes the mechanical barrier membrane on the bone surface. However, in the actual nail taking process, the membrane nail is prone to falling out of the nail grabber, the success rate of grabbing the membrane nail is not high, and the nail taking operation is inconvenient. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the embodiments of the application is to provide a nail grabber and a membrane nail installation tool, which solve the problem of a low success rate of grabbing the membrane nail in the related art.

[0005] The technical solution adopted by the embodiments of the application is as follows:

[0006] In a first aspect, a nail grabber is provided for grabbing a membrane nail. The nail grabber includes a body and a limiting mechanism. The body has a nail grabbing end. An end face of the nail grabbing end is provided with a receiving hole for accommodating a head of the membrane nail. The nail grabbing end has magnetism to magnetically attract the membrane nail. The limiting mechanism is installed on the body. The limiting mechanism includes a driving member and a limiting member. The driving member is connected with the limiting member. The driving member drives at least part of the limiting member to move to the inside of the receiving hole to close part of an opening of the receiving hole.

[0007] In use of the nail grabber, after the head of the membrane nail enters the receiving hole of the nail grabber, the head of the membrane nail can be fixed in the receiving hole by the magnetic attraction of the nail grabbing end of the nail grabber. This can reduce the risk of the membrane nail falling out, improve the success rate of grabbing the membrane nail, and simplify the nail taking operation. Meanwhile, after the head of the membrane nail enters the receiving hole, the driving member of the limiting mechanism can drive the limiting member to move so that the limiting member can extend to the inside of the receiving hole to close part of the opening of the receiving hole. In this way, the head of the membrane nail can be blocked by the limiting member, and the membrane nail is difficult to fall out of the receiving hole. This can better reduce the risk of the membrane nail falling out, improve the success rate of grabbing the membrane nail, and simplify the nail taking operation.

[0008] In some embodiments, the nail grabbing end comprises an end body and a magnetic piece, the end body is formed with a receiving hole, a bottom surface of the receiving hole is provided with a mounting hole, and the magnetic piece is mounted in the mounting hole.

[0009] By adopting the technical scheme of the embodiment, the magnetic piece is opposite to the opening of the receiving hole, on the one hand, the magnetic piece can magnetically attract the head of the film nail, so that the head of the film nail quickly enters the receiving hole, and the film nail is quickly grabbed; on the other hand, the magnetic piece can directly magnetically attract and fix the film nail, the risk of falling of the film nail is reduced, and the operation of grabbing the nail is simplified.

[0010] In some embodiments, the limiting piece is rotationally connected with the nail grabbing end, the driving piece is connected with one end of the limiting piece, and the driving piece drives the limiting piece to rotate, so that the other end of the limiting piece moves to the inside of the receiving hole.

[0011] By adopting the technical scheme of the embodiment, the limiting piece is rotationally driven by the driving piece, the film nail is fixed and limited, the structure is simple, and the manufacturing is convenient.

[0012] In some embodiments, the limiting mechanism further comprises a connecting piece and a connecting rod, the connecting piece is sleeved outside the nail grabbing end, one end of the driving piece is connected with the connecting piece, the other end of the connecting piece is rotationally connected with one end of the connecting rod, and the other end of the connecting rod is rotationally connected with the limiting piece; the driving piece drives the connecting piece to rotate around the axis of the driving piece, so that the connecting rod drives the limiting piece to rotate.

[0013] By adopting the technical scheme of the embodiment, the four-bar structure formed by the connecting piece, the connecting rod and the limiting piece is matched, so that the rotation of the limiting piece is realized, the number of components is small, the structure is simple, and the size can be designed to be small, so that the size of the nail grabber at the nail grabbing end is not excessively increased, and the use of the nail grabber is facilitated.

[0014] In some embodiments, the body comprises a hand holding part and a grabbing rod part, one end of the grabbing rod part is connected with the hand holding part, the other end of the grabbing rod part forms the nail grabbing end, the driving piece is arranged in the hand holding part, and the connecting piece is sleeved outside the grabbing rod part.

[0015] By adopting the technical scheme of the embodiment, the space of the nail grabber can be fully utilized, the structure of the nail grabber is compact, and the practicability is good.

[0016] In some embodiments, the connecting piece is connected with a plurality of connecting rods, the connecting rods are connected with the limiting pieces one by one, and the plurality of limiting pieces are distributed along the circumference of the receiving hole.

[0017] By adopting the technical scheme of the embodiment, the connection piece rotates through the plurality of connecting rods to simultaneously drive the plurality of limiting pieces to rotate, so that the plurality of limiting pieces can move from the plurality of positions on the periphery of the accommodating hole to the inside of the accommodating hole, the opening of the accommodating hole has a plurality of closed positions on the periphery thereof, the plurality of limiting pieces have a better blocking effect on the head of the film nail, and the film nail is less likely to fall off after being grabbed; in addition, the plurality of limiting pieces can also abut against the peripheral wall of the shank of the film nail, thereby righting the film nail, facilitating the subsequent positioning of the film nail into the positioning hole, reducing the deformation of the grabbing end, and improving the success rate of subsequent nail grabbing.

[0018] In some embodiments, the limiting mechanism further comprises a cover plate, the cover plate is arranged on the end of the connection piece close to the nail grabbing end, and an accommodating space is formed between the cover plate and the connection piece, the connection piece and the limiting piece are located in the accommodating space, and the cover plate is provided with a through hole arranged opposite to the accommodating hole.

[0019] By adopting the technical scheme of the embodiment, the cover plate can shield the limiting piece and the connection piece, so as to reduce the interference received by the limiting piece and the connection piece during movement, and facilitate smooth grabbing of the nail grabber.

[0020] In some embodiments, the nail grabber further comprises a hole guide rod, one end of the hole guide rod is connected to the end of the body away from the nail grabbing end, so that the hole guide rod can be folded and unfolded relative to the body; the other end of the hole guide rod is a pointed end, and the pointed end is used to pre-punch a positioning hole for fixing the film nail; and / or the nail grabber further comprises a nail lifting rod, one end of the nail lifting rod is connected to the end of the body away from the nail grabbing end, so that the nail lifting rod can be folded and unfolded relative to the body, and the other end of the nail lifting rod is a flat end, and the flat end is used to pry up the film nail.

[0021] By adopting the technical scheme of the embodiment, the nail grabber has the function of a hole puncher, the use of the film nail is more convenient, and the nail grabber has the functions of folding and unfolding, which is also convenient for use and storage.

[0022] In some embodiments, the limiting mechanism further comprises a button, the button is installed on the hand-held part, the button is electrically connected to the driving piece, and the button is used to control the opening and closing of the driving piece.

[0023] By adopting the technical scheme of the embodiment, the design of the button makes the start and stop operation of the driving piece simpler, and the use of the nail grabber is simpler and more convenient.

[0024] In a second aspect, a film nail installation tool is provided, which comprises a nail installation box and the nail grabber as described in the above embodiments, and the nail installation box has a receiving hole for accommodating the film nail.

[0025] The film nail installation tool of the embodiment of the application adopts the nail grabber described above, the risk of the film nail falling off after being grabbed by the nail grabber is small, and the use effect of the film nail installation tool is good; in addition, the nail grabber is used in cooperation with the nail installation box, and the use of the film nail is more convenient and simple.

[0026] In some embodiments, the staple box is a transparent box, or the staple box is provided with a perforated structure for observing whether the membrane staples are installed in place within the receiving hole.

[0027] By adopting the technical solution of this embodiment, it is convenient to observe whether the membrane staples are installed in place in the receiving hole, reducing the possibility of the membrane staples being misaligned in the receiving hole, so as to facilitate the accurate grasping of the subsequent staple gripper and improve the grasping success rate; in addition, it can also reduce the risk of deformation of the staple gripper.

[0028] The membrane staple installation tool also includes a staple box and a pre-drilling device. The staple box has a receiving hole for receiving the membrane staples, and the pre-drilling device has a positioning hole for fixing the membrane staples.

[0029] By adopting the technical solution of this embodiment, the staple grabber is used in conjunction with the staple box and the hole drill, making the use of membrane staples more convenient and simple.

[0030] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a structural schematic diagram from one perspective of a nail grabber provided in some embodiments of this application.

[0033] Figure 2 for Figure 1 The diagram shows another view of the nail catcher.

[0034] Figure 3 For along Figure 2 Sectional view along line AA in the middle.

[0035] Figure 4 for Figure 3 A magnified view of a section at point B.

[0036] Figure 5 for Figure 1 The diagram shown is an exploded view of the nail catcher.

[0037] Figure 6 for Figure 5 A magnified view of a section at point C.

[0038] Figure 7 for Figure 1 The diagram shows the structure of the nail catcher after the cover plate is hidden.

[0039] Figure 8 This is a structural schematic diagram from one perspective of a nail grabber provided in some other embodiments of this application.

[0040] Figure 9 for Figure 8 A schematic diagram of the nail catcher from another perspective.

[0041] Figure 10 for Figure 8 The diagram shows the structure of the nail catcher in its deployed state.

[0042] Figure 11 This is a schematic diagram of the structure of a binding box provided in some embodiments of this application.

[0043] The following are the labeling elements in the figure:

[0044] 100. Nail grabber; 10. Body; 11. Handheld part; 12. Grabbing rod part; 101. Nail grabbing end; 1011. End body; 1012. Magnetic component; 102. Receiving hole; 103. Mounting hole; 104. First receiving slot; 105. Second receiving slot; 106. First operating slot; 107. Second operating slot; 20. Limiting mechanism; 201. Receiving space; 21. Driving component; 22. Limiting component; 23. Connecting component; 24. Cover plate; 241. Through hole; 25. Button; 26. Connecting rod; 27. Rotating shaft; 28. Guide hole rod; 281. Tip; 29. ​​Nail puller rod; 291. Flat end; 200. Nail box; 210. Top cover; 220. Receiving hole. Detailed Implementation

[0045] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0047] In the description of the embodiments of the present application, the technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0048] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is explicitly and implicitly understood that the embodiments described herein can be combined in any suitable manner with each other.

[0049] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0050] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces). The meaning of "several" is one or more, unless otherwise explicitly and specifically limited.

[0051] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0052] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0053] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or indirectly on another element. When an element is referred to as "connected to" another element, it can be directly connected to another element or indirectly connected to another element.

[0054] In oral implant surgery, the membrane pin maintains the bone regeneration space by mechanically fixing the barrier membrane (such as collagen membrane or titanium membrane), prevents soft tissue intrusion and supports bone powder material, provides a stable microenvironment for bone defect repair, helps soft tissue repair and healing process, reduces displacement and instability, and helps surgery success and patient recovery.

[0055] The membrane pin is usually used with a membrane pin installation tool, which includes a pin installation box, a pin gripper and a hole guide. The pin installation box has a receiving hole, and the membrane pin is installed in the receiving hole. In use, the membrane pin is first installed in the pin installation box and then sterilized, and then taken to the operating table. The tip of the hole guide is used to punch a positioning hole in the area where the membrane pin is to be installed. The pin gripper takes the membrane pin out of the pin installation box and fixes the mechanical barrier membrane (such as collagen membrane or titanium membrane) on the bone surface. However, in the actual pin taking process, the membrane pin is prone to falling from the pin gripper, the success rate of pin gripping is not high, and the pin taking operation is not convenient.

[0056] For example, in dental implant surgery, the bone defect part is relatively large, and bone powder needs to be implanted, and then a mechanical barrier membrane is covered, and the mechanical barrier membrane is fixed by using a membrane pin. During the use of the membrane pin, the pin gripping end of the pin gripper is prone to deformation under pressure. The pin gripper that is deformed under pressure is difficult to grip the membrane pin, which leads to the membrane pin falling during subsequent movement. Moreover, the membrane pin is small and difficult to find when it falls on the instrument table. It is also difficult to install the found membrane pin into the pin installation box, and the membrane pin is prone to fall again. The membrane pin is prone to fall from the pin gripper, the success rate of pin gripping is not high, and the pin taking operation is not convenient.

[0057] Based on this, embodiments of this application provide a screw grasper that can be applied in surgeries such as dental implantation, fracture repair, and osteoarthritis repair. The screw grasper can be used alone or in conjunction with a screw holder and a pre-drilling device.

[0058] The following combination Figures 1-11 The pin catcher 100 and the membrane pin installation tool are illustrated in the figures and some embodiments.

[0059] like Figures 1-4 As shown, in one embodiment of this application, a nail gripper 100 is provided for gripping membrane nails. The nail gripper 100 includes a body 10 and a limiting mechanism 20. The body 10 has a nail gripping end 101, and the end face of the nail gripping end 101 is provided with a receiving hole 102 for receiving the head of the membrane nail. The nail gripping end 101 is magnetic to magnetically attract the membrane nail. The limiting mechanism 20 is installed on the body 10 and includes a driving member 21 and a limiting member 22. The driving member 21 is connected to the limiting member 22. The driving member 21 drives at least a portion of the limiting member 22 to move to the inside of the receiving hole 102 to close a portion of the opening of the receiving hole 102.

[0060] Membrane staples typically consist of a head and a shank. The head is usually a flat, disc-shaped structure that provides support during installation, allowing the staple to be securely fixed to the material surface and ensuring correct positioning. The shank is the portion that extends into the material, penetrating it and securing it to the underlying structure. The length and diameter of the shank depend on the specific application and installation requirements of the membrane staple. Membrane staples are typically secured by pressing or hammering the head against the material surface, causing the shank to penetrate the material and anchor to the underlying structure.

[0061] The main body 10 can refer to the main body of the nail gripper 100; one end of the main body 10 forms a nail gripping end 101, and the gripping of the membrane nail is mainly completed by the nail gripping end 101; the end face of the nail gripping end 101 is provided with a receiving hole 102, and the head of the membrane nail can be inserted into the opening of the receiving hole 102 to realize the gripping of the membrane nail; at the same time, the nail shaft of the membrane nail can protrude outside the receiving hole 102 to facilitate the fixation of the membrane nail.

[0062] The gripping end 101 is magnetic, which can mean that the gripping end 101 is made of magnetic material, or that a magnetic component 1012 is installed inside the gripping end 101. The magnetic material can be cobalt, nickel, neodymium iron boron magnets, etc., and the magnetic component 1012 can be a magnet, electromagnet, etc. The membrane staples are usually made of iron-containing titanium alloy material, so that the gripping end 101 can magnetically attract the membrane staples.

[0063] The limiting mechanism 20 can refer to a component for limiting the head of the film nail from coming out of the accommodation hole 102; the limiting mechanism 20 includes a driving member 21 and a limiting member 22, the driving member 21 can refer to a component that provides power for the limiting mechanism 20, for example: a motor, a pneumatic cylinder, etc., the limiting member 22 can refer to a component that can move under the drive of the driving member 21, so that the limiting member 22 can completely extend into the inside of the accommodation hole 102, or partially extend into the inside of the accommodation hole 102, to close part of the opening of the accommodation hole 102; wherein, the limiting member 22 can close the opening from outside the opening of the accommodation hole 102, or the limiting member 22 can move to the inside of the accommodation hole 102 to close the opening.

[0064] For example, the driving member 21 is a micro stepping motor, the output torque is 0.5 N·m, and the response time is less than 0.1 s.

[0065] For example, the limiting member 22 is made of 316L stainless steel, the surface is treated with titanium nitride coating, the hardness is greater than or equal to HV800, and the limiting member 22 has good wear resistance and long-term use reliability.

[0066] For example, the limiting member 22 has a rotation angle of 0°-90°, and an arc-shaped groove is arranged at the end to match the edge of the head of the film nail, thereby reducing the risk of deformation of the film nail caused by excessive extrusion.

[0067] The inside of the accommodation hole 102 can refer to the side of the hole wall of the accommodation hole 102 towards the axis of the accommodation hole 102 (see the D-D line in Figure 3 and Figure 4 .

[0068] When the nail grabber 100 is used, after the head of the film nail enters the accommodation hole 102 of the nail grabber 100, the nail grabber 100 has magnetism, and the head of the film nail can be fixed in the accommodation hole 102 by using the magnetic attraction force, so as to reduce the risk of falling of the film nail, facilitate to improve the success rate of grabbing the film nail, and simplify the operation of taking the nail; meanwhile, after the head of the film nail enters the accommodation hole 102, the driving member 21 of the limiting mechanism 20 can drive the limiting member 22 to move, so that the limiting member 22 can extend into the inside of the accommodation hole 102 to close part of the opening of the accommodation hole 102, so that the head of the film nail can be blocked by the limiting member 22, and the film nail is difficult to come out of the accommodation hole 102, so as to better reduce the risk of falling of the film nail, facilitate to improve the success rate of grabbing the film nail, and simplify the operation of taking the nail. The nail grabber 100 of the embodiment of the application adopts the nail grabbing scheme combining magnetic adsorption and mechanical limiting, and solves the technical bottleneck that the film nail is easy to fall in the operation through the double fixing mechanism.

[0069] In another embodiment of the application, refer to Figure 3 and Figure 4As shown, the nail grabbing end 101 includes an end body 1011 and a magnetic piece 1012, the end body 1011 is formed with a receiving hole 102, a bottom surface of the receiving hole 102 is provided with a mounting hole 103, and the magnetic piece 1012 is mounted in the mounting hole 103.

[0070] The end body 1011 can refer to a main body part of the nail grabbing end 101, and the end body 1011 is used to surround the formed receiving hole 102, the receiving hole 102 has an opening, the head of the film nail enters the receiving hole 102 from the opening, the hole wall opposite to the opening in the receiving hole 102 is the bottom surface of the receiving hole 102, the bottom surface of the receiving hole 102 is provided with the mounting hole 103, and the mounting hole 103 can provide a mounting space for the magnetic piece 1012 and is used to fix the magnetic piece 1012.

[0071] For example, the magnetic piece 1012 is in interference fit with the mounting hole 103, and a medical-grade silicone layer is coated on the surface to prevent corrosion and enhance structural stability and biocompatibility.

[0072] For example, the magnetic piece 1012 is fixed in the mounting hole 103 by epoxy resin glue.

[0073] By adopting the technical scheme of this embodiment, the magnetic piece 1012 is opposite to the opening of the receiving hole 102, on one hand, the magnetic piece 1012 can magnetically attract the head of the film nail, so that the head of the film nail quickly enters the receiving hole 102, and the film nail is quickly grabbed; on the other hand, the magnetic piece 1012 can also magnetically attract and fix the film nail, reduces the risk of falling of the film nail, and simplifies the operation of grabbing the nail.

[0074] In another embodiment of the present application, referring to Figures 4-7 As shown, the limiting piece 22 is rotationally connected with the nail grabbing end 101, one end of the driving piece 21 is connected with the limiting piece 22, and the driving piece 21 drives the limiting piece 22 to rotate, so that the other end of the limiting piece 22 moves to the inside of the receiving hole 102.

[0075] The limiting piece 22 can rotate relative to the nail grabbing end 101, so that the end of the limiting piece 22 can move to the inside of the receiving hole 102 or exit from the inside of the receiving hole 102; when the end of the limiting piece 22 exits from the inside of the receiving hole 102, the opening of the receiving hole 102 is completely opened, at this time, the film nail can enter the receiving hole 102; when the end of the limiting piece 22 moves to the inside of the receiving hole 102, the limiting piece 22 can close part of the opening of the receiving hole 102, so as to block the head of the film nail from moving out of the receiving hole 102, and avoid the film nail from being taken out of the receiving hole 102.

[0076] The limiting member 22 can be rotatably connected to the claw end 101 via components such as the rotating shaft 27. For example, the limiting member 22 has a rotating hole in the middle, and the end face of the end body 1011 with an opening of the receiving hole 102 is connected to the rotating shaft 27. The rotating shaft 27 is inserted into the rotating hole, and the driving member 21 drives the limiting member 22 to rotate around the axis of the rotating shaft 27, thereby realizing the rotation of the limiting member 22.

[0077] By adopting the technical solution of this embodiment, the limiting member 22 is driven to rotate by the driving member 21 to achieve the limiting and fixing of the membrane nail. Its structure is simple and easy to process and manufacture.

[0078] In another embodiment of this application, see [reference] Figures 4-7 As shown, the limiting mechanism 20 also includes a connector 23 and a connecting rod 26. The connector 23 is sleeved outside the gripper end 101. One end of the driving member 21 is connected to the connector 23, and the other end of the connector 23 is rotatably connected to one end of the connecting rod 26. The other end of the connecting rod 26 is rotatably connected to the limiting member 22. The driving member 21 drives the connector 23 to rotate around its own axis (see reference). Figure 2 and Figure 4 The DD line in the middle rotates, so that the connecting rod 26 pushes the limiting member 22 to rotate.

[0079] The connector 23 can refer to a component that is wrapped around the gripper end 101, and the connecting rod 26 can refer to a component that connects the connector 23 and the limiting member 22. The connector 23 can transmit the rotational power output by the drive member 21 to the connecting rod 26, and the movement of the connecting rod 26 drives the limiting member 22 to rotate. The connector 23 and the connecting rod 26 can be rotatably connected by a rotating shaft 27, and the connecting rod 26 and the limiting member 22 can also be connected by a rotating shaft 27. The connector 23, the connecting rod 26 and the limiting member 22 form a four-bar linkage. The drive member 21 drives the connector 23 to rotate, the rotating connector 23 drives the connecting rod 26 to move, and the connecting rod 26 drives the limiting member 22 to rotate.

[0080] By adopting the technical solution of this embodiment, the four-bar structure formed by the connector 23, the connecting rod 26 and the limiting member 22 are used to cooperate, thereby realizing the rotation of the limiting member 22. It uses fewer parts, has a simple structure, and can also be designed to be smaller in size. This avoids excessively increasing the size of the nail grabber 100 at the nail grabbing end 101, making it convenient to use the nail grabber 100.

[0081] In another embodiment of this application, see [reference] Figures 2-4 As shown, the main body 10 includes a hand-held part 11 and a gripping rod part 12. One end of the gripping rod part 12 is connected to the hand-held part 11, and the other end of the gripping rod part 12 forms a gripping nail end 101. The driving member 21 is disposed inside the hand-held part 11, and the connecting member 23 is sleeved outside the gripping rod part 12.

[0082] The handheld part 11 can refer to the part of the body 10 for the user to hold; the grab lever part 12 can refer to the part provided with the grabber end 101; the handheld part 11 and the grab lever part 12 are sequentially connected along the length direction of the grabber 100, which is designed to be more compact and practical; the driving member 21 is arranged in the internal space of the handheld part 11, which can fully utilize the internal space of the grabber 100, and is beneficial to improve the compactness and practicality of the structure. The connecting member 23 is sleeved outside the grab lever part 12, the grab lever part 12 is arranged in the inner hole of the connecting member 23, and the axis of the accommodating hole 102 can be parallel or coincident with the axis of the connecting member 23, so that the compactness of the structure of the grab lever part 12 and the connecting member 23 is good, which is beneficial to the use of the grabber 100.

[0083] By adopting the technical scheme of the embodiment, the space of the grabber 100 can be fully utilized, the compactness of the structure of the grabber 100 is good, and the practicality is good.

[0084] In some cases, when the film nail is inserted into the positioning hole, the film nail is easy to be skewed, the grabber end 101 of the grabber 100 is easy to be unevenly stressed and deformed, and the success rate of subsequent film nail grabbing is not high.

[0085] In another embodiment of the present application, referring to Figure 7 As shown in the figure, the connecting member 23 is connected with a plurality of connecting rods 26, the connecting rods 26 are connected with the limiting members 22 one by one, and the plurality of limiting members 22 are distributed along the circumference of the accommodating hole 102.

[0086] The plurality of limiting members 22 and the plurality of connecting rods 26 are arranged one by one, the plurality of connecting rods 26 and the plurality of limiting members 22 are distributed along the circumference of the connecting member 23, the plurality of connecting rods 26 and the plurality of limiting members 22 are arranged at intervals around the rotation axis of the connecting member 23, the plurality of connecting rods 26 and the plurality of limiting members 22 can also be distributed at intervals along the circumference of the accommodating hole 102, the number of limiting members 22 can be two, three or more than four, and the number of connecting rods 26 can be two, three or more than four.

[0087] By adopting the technical scheme of the embodiment, the connecting member 23 rotates through the plurality of connecting rods 26, which can simultaneously drive the plurality of limiting members 22 to rotate, so that the plurality of limiting members 22 can move from the plurality of positions on the circumference side of the accommodating hole 102 to the inside of the accommodating hole 102, the opening of the accommodating hole 102 has a plurality of closed positions on the circumference side, the blocking effect of the plurality of limiting members 22 on the head of the film nail is better, and the risk of the film nail falling off after being grabbed is smaller; in addition, the plurality of limiting members 22 can also abut against the circumferential wall of the nail rod of the film nail, so as to right the film nail, facilitate the insertion of the subsequent film nail into the positioning hole, reduce the deformation of the grabbing end, and improve the success rate of subsequent grabbing.

[0088] In another embodiment of the present application, referring to Figures 4-7As shown, the limiting mechanism 20 further comprises a cover plate 24, the cover plate 24 is arranged on the end of the connecting piece 23 close to the nail end 101, and a containing space 201 is formed between the cover plate 24 and the connecting piece 23, the connecting piece 23 and the limiting piece 22 are located in the containing space 201, and the cover plate 24 is provided with a through hole 241 opposite to the containing hole 102.

[0089] The cover plate 24 is arranged on the end of the connecting piece 23 close to the nail end 101, and there is a certain gap between the cover plate 24 and the end face of the connecting piece 23 close to the nail end 101, and the space formed by the gap is the containing space 201, which provides installation space for the limiting piece 22 and the connecting piece 23, so that the cover plate 24 can shield the limiting piece 22 and the connecting piece 23.

[0090] The cover plate 24 is provided with a through hole 241, and the through hole 241 is in communication with the containing hole 102, so that the head of the film nail can enter the containing hole 102 through the through hole 241 to realize grabbing.

[0091] By adopting the technical scheme of the embodiment, the cover plate 24 can shield the limiting piece 22 and the connecting piece 23, and can reduce the interference of the limiting piece 22 and the connecting piece 23 during movement, which is beneficial to improve the smoothness of the nail grabber 100.

[0092] In another embodiment of the present application, referring to Figure 1 As shown, the limiting mechanism 20 further comprises a button 25, the button 25 is installed on the hand-held part 11, the button 25 is electrically connected with the driving piece 21, and the button 25 is used to control the opening and closing of the driving piece 21.

[0093] The button 25 can be a component used to control the start and stop of the driving piece 21, and the button 25 can be a touch button 25 or a mechanical button 25. By pressing the button 25, the start and stop of the driving piece 21 are controlled, so that the limiting piece 22 is controlled to turn into the inside of the containing hole 102 to limit the film nail, and the limiting piece 22 is also controlled to exit the inside of the containing hole 102 to facilitate the film nail to exit or enter the containing hole 102.

[0094] By adopting the technical scheme of the embodiment, the design of the button 25 makes the start and stop operation of the driving piece 21 more simple, and the use of the nail grabber 100 is more simple and convenient.

[0095] In some cases, the hole puncher can refer to a device for punching a positioning hole in the area where the membrane nail is to be installed, one end of the hole puncher being a sharp structure, i.e. the tip of the hole puncher, and the other end of the hole puncher being a flat structure, i.e. the flat end of the hole puncher. Before using the membrane nail, the tip of the hole puncher is used to punch a positioning hole in the area where the membrane nail is to be installed, so as to facilitate the subsequent installation of the membrane nail; when the membrane nail needs to be removed, the flat end of the hole puncher can be inserted between the head of the membrane nail and the material, so as to lift the membrane nail and achieve the removal of the membrane nail.

[0096] In another embodiment of the present application, referring to Figures 8-10 As shown in the drawings, the nail grabber 100 further comprises a hole punch rod 28, one end of the hole punch rod 28 being connected to the end of the body 10 away from the nail grabbing end 101, so that the hole punch rod 28 can be folded and unfolded relative to the body 10; the other end of the hole punch rod 28 is a tip 281, which is used to punch a positioning hole in advance for fixing the membrane nail; and / or the nail grabber 100 further comprises a nail lifting rod 29, one end of the nail lifting rod 29 being connected to the end of the body 10 away from the nail grabbing end 101, so that the nail lifting rod 29 can be folded and unfolded relative to the body 10, and the other end of the nail lifting rod 29 is a flat end 291, which is used to pry up the membrane nail.

[0097] The hole punch rod 28 can refer to a component for punching a positioning hole in advance, and the end of the hole punch rod 28 is sharp to form a tip 281, so as to facilitate the punching of the positioning hole. The nail grabber 100 also has a hole punching function, making the use of the membrane nail more convenient; in addition, the hole punch rod 28 can be rotatably connected to the body 10 through a rotating shaft or the like, so that the hole punch rod 28 can be unfolded and folded relative to the body 10, and when the hole punch rod 28 is unfolded, the hole punching can be achieved, and when the hole punch rod 28 is folded, it can be conveniently stored.

[0098] For example, a first receiving groove 104 is formed on one side of the hand-held part 11, and the hole punch rod 28 is stored in the first receiving groove 104 after being folded. The folded nail grabber 100 is compact, small and practical.

[0099] The nail lifting rod 29 can refer to a component for prying up the membrane nail, and the end of the nail lifting rod 29 is flat to form a flat end 291, so that the flat end 291 can be inserted between the head of the membrane nail and the material to lift the membrane nail and achieve the removal of the membrane nail. The nail grabber 100 also has a function of removing the membrane nail, making the use of the membrane nail more convenient; in addition, the nail lifting rod 29 can be rotatably connected to the body 10 through a rotating shaft or the like, so that the nail lifting rod 29 can be unfolded and folded relative to the body 10, and when the nail lifting rod 29 is unfolded, the membrane nail can be removed, and when the nail lifting rod 29 is folded, it can be conveniently stored.

[0100] The other side of the handheld part 11 is provided with a second accommodation groove 105, and the nail rod 29 is folded and accommodated in the second accommodation groove 105. The folded nail extractor 100 is compact, small and practical.

[0101] In some examples, the guide rod 28 is hinged to the body 10 by a spring pin, and is automatically locked at an angle of 180° when unfolded, thereby improving operation stability and improving reliability of the surgical instrument.

[0102] In some examples, the guide rod 28 is connected to the body 10 by a damping rotating shaft and is locked by a buckle after being unfolded.

[0103] In a possible implementation, referring to Figure 8 and Figure 10 The nail extractor 100 further comprises a guide rod 28, one end of the guide rod 28 is connected to the end of the body 10 away from the nail gripping end 101, so that the guide rod 28 can be folded and unfolded relative to the body 10; the other end of the guide rod 28 is a pointed end 281, which is used to pre-punch a positioning hole for fixing a film nail; the nail extractor 100 further has a punching function, and the fixing of the film nail is more convenient; in addition, the guide rod 28 can be unfolded and folded relative to the body 10, the guide rod 28 can punch when unfolded, and the guide rod 28 can be conveniently accommodated when folded.

[0104] In a possible implementation, referring to Figure 9 and Figure 10 The nail extractor 100 further comprises a nail rod 29, one end of the nail rod 29 is connected to the end of the body 10 away from the nail gripping end 101, so that the nail rod 29 can be folded and unfolded relative to the body 10, and the other end of the nail rod 29 is a flat end 291, which is used to pry up a film nail; the nail extractor 100 further has a function of disassembling a film nail, and the disassembly of the film nail is more convenient; in addition, the nail rod 29 can be unfolded and folded relative to the body 10, the nail rod 29 can disassemble the film nail when unfolded, and the nail rod 29 can be conveniently accommodated when folded.

[0105] In some examples, the nail rod 29 is hinged to the body 10 by a spring pin, and is automatically locked at an angle of 180° when unfolded, thereby improving operation stability and improving reliability of the surgical instrument.

[0106] In another possible implementation, referring to Figures 8-10As shown, the nail grabber 100 further comprises a hole guide rod 28, one end of the hole guide rod 28 is connected to the end of the body 10 away from the nail grabbing end 101, so that the hole guide rod 28 can be folded and unfolded relative to the body 10; the other end of the hole guide rod 28 is a pointed end 281, which is used to pre-punch a positioning hole for fixing the film nail; the nail grabber 100 further comprises a nail lifting rod 29, one end of the nail lifting rod 29 is connected to the end of the body 10 away from the nail grabbing end 101, so that the nail lifting rod 29 can be folded and unfolded relative to the body 10, and the other end of the nail lifting rod 29 is a flat end 291, which is used to pry the film nail; so that the nail grabber 100 has the function of a hole guide, and the fixing and dismounting of the film nail are more convenient; in addition, the hole guide rod 28 and the nail lifting rod 29 can be unfolded and folded relative to the body 10, which is convenient to use and store.

[0107] By adopting the technical scheme of this embodiment, the nail grabber 100 has the function of a hole guide, the use of the film nail is more convenient, and the nail grabber 100 has the functions of folding and unfolding, which is also convenient to use and store.

[0108] In some embodiments, when the hole guide rod 28 and the nail lifting rod 29 are in the folded state, the hand holding part 11 protrudes from the end of the hole guide rod 28 and the nail lifting rod 29 by a distance, and the end of the part of the hand holding part 11 protruding from the hole guide rod 28 and the nail lifting rod 29 can be used as a dental mallet. By using the dental mallet to knock the film nail, the film nail can be easily fixed into the bone to fix the mechanical barrier film. The dental mallet is at a certain distance from the hole guide rod 28 and the nail lifting rod 29, thereby reducing the risk of damage to the hole guide rod 28 and the nail lifting rod 29.

[0109] In some embodiments, the hand holding part 11 is further provided with a first operation groove 106 vertically arranged with the first receiving groove 104, so that the user can stretch into the first operation groove 106 to grab the hole guide rod 28, thereby rotating the hole guide rod 28, and facilitating the unfolding of the hole guide rod 28 relative to the body 10.

[0110] In some embodiments, the hand holding part 11 is further provided with a second operation groove 107 vertically arranged with the second receiving groove 105, so that the user can stretch into the second operation groove 107 to grab the nail lifting rod 29, thereby rotating the nail lifting rod 29, and facilitating the unfolding of the nail lifting rod 29 relative to the body 10.

[0111] In another embodiment of the present application, a film nail installation tool is provided, referring to Figure 11 As shown, it comprises a nail loading box 200 and a nail grabber 100 as described in the above embodiments, and the nail loading box 200 has a receiving hole 220 for accommodating the film nail.

[0112] The pin loading box 200 can refer to a component for loading film pins. The film pins are loaded into the pin loading box 200, which facilitates sterilization of the film pins. The pin loading box 200 is usually provided with a plurality of accommodation holes 220 to accommodate a plurality of film pins. The pin loading box 200 is provided with an upper cover 210 to reduce the risk of contamination of the film pins. The pin shank of the film pin is usually inserted into the accommodation hole 220, and the head of the film pin is exposed, so that the pin grabbing end 101 of the pin grabber 100 can easily grab the film pin. The number of accommodation holes 220 can be multiple. The plurality of accommodation holes 220 can be distributed in zones. The hole diameters of the accommodation holes 220 in different zones are different to accommodate film pins of different sizes. For example, 3mm film pins and 5mm film pins. Each zone can also mark the length of the corresponding film pin to facilitate the grabbing of the film pin. The pin loading box 200 can also be a transparent box to facilitate the grabbing of film pins of different sizes.

[0113] The film pin installation tool of the embodiment of the application adopts the above-mentioned pin grabber 100. The risk of the pin grabber 100 grabbing the film pin is small, and the use effect of the film pin installation tool is good. In addition, the pin grabber 100 is used in cooperation with the pin loading box 200, and the use of the film pin is more convenient and simple.

[0114] In another embodiment of the application, referring to Figure 11 As shown in the figure, the pin loading box 200 is a transparent box body. Alternatively, the pin loading box 200 is provided with a hollow structure for observing whether the film pin is installed in place in the accommodation hole 220.

[0115] The pin loading box 200 is made of a transparent material, such as transparent plastic, transparent rubber, etc. The pin loading box 200 is transparent, so that the shape of the film pin in the accommodation hole 220 can be seen from the outside, and the film pin that is tilted can be straightened in time to facilitate subsequent grabbing. In addition, the length of the film pin can also be seen to facilitate accurate grabbing of the film pin.

[0116] The hollow structure can refer to a hole structure, a gap or a cavity structure formed on the surface of the pin loading box 200, so that the shape of the film pin in the accommodation hole 220 can be seen from the outside of the pin loading box 200, and the film pin that is tilted can be straightened in time to facilitate subsequent grabbing. In addition, the length of the film pin can also be seen to facilitate accurate grabbing of the film pin.

[0117] By adopting the technical scheme of the embodiment, it is convenient to observe whether the film pin is installed in place in the accommodation hole 220, and the risk of the film pin being tilted in the accommodation hole 220 is reduced to facilitate accurate grabbing of the pin grabber 100 in the subsequent process and improve the success rate of grabbing. In addition, the risk of deformation of the pin grabber 100 can also be reduced.

[0118] In some embodiments, the use process of the film pin installation tool can be as follows:

[0119] Before using the membrane nail, the tip 281 of the guide hole rod 28 is used to punch a positioning hole in the area where the membrane nail is to be installed, and then the appropriate size and number of membrane nails are selected according to the surgical requirements and placed in the receiving hole 220 of the nail installation box 200 for high-temperature and high-pressure sterilization and disinfection. When in use, the four fingers hold the hand-held part 11 of the nail grabber 100, the thumb is buckled to the end of the nail grabber 100 close to the grab lever part 12, the nail grabber 100 is vertically arranged, the nail grab end 101 is sleeved on the head of the membrane nail, and the head of the membrane nail is in the containing hole 102. The magnetic part 1012 magnetically adsorbs and fixes the membrane nail. In addition, the driving part 21 of the limiting mechanism 20 can also drive the connecting part 23 to rotate, and the connecting part 23 drives the limiting part 22 to rotate, so as to realize the positioning of the membrane nail. Then, the membrane nail is moved to the positioning hole, and the nail rod of the membrane nail is punched into the positioning hole, so that the fixation of the membrane nail is realized.

[0120] When the membrane nail needs to be removed, the flat end 291 of the nail rod 29 can be inserted between the head of the membrane nail and the material, so as to lift the membrane nail and realize the removal of the membrane nail.

[0121] The above description of the various embodiments tends to emphasize the differences between the various embodiments, and the same or similar parts can be referred to each other, and will not be described herein for the sake of brevity.

[0122] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A grabber for grabbing a film staple, characterized by, The nail grabber comprises: a body having a nail grabbing end, an end face of the nail grabbing end being provided with a receiving hole for accommodating a head of the film nail, the nail grabbing end being magnetic to magnetically attract the film nail; a limiting mechanism mounted on the body, the limiting mechanism comprising a driving member and a limiting member, the driving member being connected with the limiting member, the driving member driving at least part of the limiting member to move to an inner side of the receiving hole to close a partial area of an opening of the receiving hole.

2. The spike extractor of claim 1, wherein: The nail grabbing end comprises an end body and a magnetic member, the end body being formed with the receiving hole, a hole bottom face of the receiving hole being provided with a mounting hole, and the magnetic member being mounted in the mounting hole.

3. The spike extractor of claim 1, wherein: The limiting member is rotationally connected with the nail grabbing end, one end of the driving member is connected with the limiting member, and the driving member drives the limiting member to rotate so that the other end of the limiting member moves to the inner side of the receiving hole.

4. The spike extractor of claim 3, wherein: The limiting mechanism further comprises a connecting member and a connecting rod, the connecting member is sleeved outside the nail grabbing end, one end of the driving member is connected with the connecting member, the other end of the connecting member is rotationally connected with one end of the connecting rod, and the other end of the connecting rod is rotationally connected with the limiting member. The driving member drives the connecting member to rotate around an axis of the driving member so that the connecting rod pushes the limiting member to rotate.

5. The spike extractor of claim 4, wherein: The body comprises a hand holding part and a grabbing rod part, one end of the grabbing rod part is connected with the hand holding part, the other end of the grabbing rod part forms the nail grabbing end, the driving member is arranged in the hand holding part, and the connecting member is sleeved outside the grabbing rod part.

6. The spike extractor of claim 4, wherein: The connecting member is connected with a plurality of the connecting rods, the connecting rods are connected with the limiting members one by one, and a plurality of the limiting members are distributed along a circumferential direction of the receiving hole.

7. The spike extractor of claim 5, wherein: The limiting mechanism further comprises a button, the button is mounted on the hand holding part, the button is electrically connected with the driving member, and the button is used to control opening and closing of the driving member.

8. The spike extractor according to any one of claims 1 to 7, characterized in that: The nail grabber further comprises a hole leading rod, one end of the hole leading rod is connected with an end of the body away from the nail grabbing end so that the hole leading rod can be folded and unfolded relative to the body, and the other end of the hole leading rod is a pointed end, the pointed end being used to pre-punch a positioning hole for fixing the film nail. And / or, the nail grabber further comprises a nail lifting rod, one end of the nail lifting rod is connected with an end of the body away from the nail grabbing end so that the nail lifting rod can be folded and unfolded relative to the body, and the other end of the nail lifting rod is a flat end, the flat end being used to pry up the film nail.

9. A nail installation tool for a membrane, characterized by: The nail grabber comprises a nail loading box and the nail grabber according to any one of claims 1-8, the nail loading box having a receiving hole for accommodating the film nail.

10. The film peg installation tool of claim 9, wherein: The nail loading box is a transparent box body, or the nail loading box is provided with a hollow structure for observing whether the film nail is installed in place in the receiving hole.

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