Magnetic foreign matter taking-out forceps

Abstract

The invention discloses a pair of magnetic foreign matter taking-out forceps, which relates to the technical field of medical forceps and comprises a scissor-type forceps body, forceps mouths are arranged on forceps heads of the scissor-type forceps body, at least one of the forceps mouths is a magnetic forceps mouth, and the magnetic forceps mouth is used for sucking foreign matters containing iron, cobalt and nickel metals and metal alloys. The forceps beak is made of the magnetic material, so that the forceps beak can actively adsorb the magnetic foreign matter, the foreign matter can be accurately adsorbed in a limited visual field in cooperation with computed tomography (CT), tissue trauma is reduced, and the taking-out efficiency of the magnetic foreign matter is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical forceps, and particularly relates to a magnetic foreign body removing forceps. BACKGROUND

[0002] Oral surgery is a common operation in stomatology, but in the case of complex tooth extraction or implant removal, metal foreign bodies are often left behind, such as broken tooth extraction needles, root canal files or broken and remaining dental alloy fillings, and orthodontic brackets or steel wires. If ferromagnetic metal foreign bodies (such as broken tooth extraction needles and separating instruments during root canal treatment) are left in the alveolar fossa and the surrounding tissue gap of the maxillofacial region during oral surgery, these residual materials not only may cause electrochemical corrosion in a moist oral environment, release metal ions and cause local or systemic reactions, but also may cause persistent inflammation or delayed healing, or hinder subsequent repair treatment. Many of these metal foreign bodies contain ferromagnetic components such as iron, nickel and cobalt, which can respond to an external magnetic field.

[0003] Generally, dental metal foreign bodies have various shapes (fragments, filaments, rods, irregularities), the average vertical space in the posterior region of the oral cavity is only 8-12 mm, and the operation space is limited; the instrument gripping force is attenuated in a wet environment, and the friction coefficient is reduced by saliva and blood. In addition, traditional dental instruments do not fully utilize the physical properties of magnets, resulting in low efficiency in removing these metal foreign bodies.

[0004] The current commonly used method for removing metal foreign bodies in clinical practice mainly relies on ordinary dental forceps and surgical suction devices. Ordinary dental forceps can grasp foreign bodies by mechanical clamping, but it is often difficult to effectively clamp small fragments (diameter <2 mm) or foreign bodies embedded in the deep part of the alveolar bone. In addition, the operation space in the oral cavity is limited, and the surrounding gap of the oral and maxillofacial region is located in the deep part of the tissue and is connected, so that the traditional design of forceps cannot adapt to the needs of complex anatomical positions, and it is difficult to accurately grasp, which may cause secondary damage, especially non-magnetic stainless steel forceps cannot utilize the physical properties of ferromagnetic materials, resulting in low efficiency in removing foreign bodies. Although the surgical suction device can absorb small foreign bodies through negative pressure, the control of suction force is not accurate, which may cause the foreign bodies to fall off or damage the surrounding soft tissue. More importantly, both methods cannot specifically identify and target ferromagnetic metals, and it is difficult to operate when the foreign bodies and the surrounding tissue have similar colors or the field of view is unclear, especially for small, deep or magnetic metal foreign bodies, which often have poor results. SUMMARY

[0005] The purpose of the present application is to provide a magnetic foreign body removing forceps to solve the problems existing in the prior art, so that the magnetic beak of the forceps can actively absorb the magnetic foreign body, improve the efficiency of removing the magnetic foreign body and reduce the trauma.

[0006] To achieve the above purpose, the present application provides the following scheme: The application provides a magnetic foreign matter taking-out forceps, which comprises a shearing forceps body, a forceps beak is arranged on a forceps head of the shearing forceps body, at least one of the forceps beaks is a magnetic forceps beak, and the magnetic forceps beak is used for absorbing foreign matters containing iron, cobalt, nickel and metal alloy.

[0007] Preferably, the forceps beaks are provided with different bending degrees and length types.

[0008] Preferably, the bending degrees of the forceps beaks include 0°, 30°, 45°, 60° and 90°.

[0009] Preferably, the end length of the forceps beaks includes 13 cm, 16 cm, 18 cm, 20 cm, 26 cm, 25 cm, 28 cm and 30 cm.

[0010] Preferably, the material of the magnetic forceps beak is neodymium iron boron.

[0011] Preferably, the forceps beak and the forceps head are integrally manufactured, one forceps blade of the shearing forceps body is a magnetic forceps blade, and the other forceps blade is a non-magnetic material.

[0012] Preferably, the shearing forceps body is provided with several types according to the forceps beaks with different bending degrees and lengths.

[0013] Preferably, the forceps beak is connected to the forceps head through threads.

[0014] Preferably, the front end of the forceps beak is provided with a rounded corner, an anti-skid texture is arranged in a clamping surface of the forceps beak, the anti-skid texture is a scale line, the scale line has an accuracy of 1 mm, and each 5 mm from a tip to a rear end is provided with a scale value.

[0015] Preferably, a holding ring and a pair of locking calipers are arranged on a handle of the shearing forceps body.

[0016] The application has the following technical effects relative to the prior art. The application can actively absorb magnetic foreign matters by designing the forceps beak into a magnetic material, can accurately absorb the foreign matters in a limited field of view by cooperating with a computerized tomography (CT), reduces tissue trauma, and improves the taking-out efficiency of the magnetic foreign matters. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description only show some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Fig. 1 Figure 1 is a structural schematic diagram of the magnetic foreign body extraction forceps in the first embodiment of the present application; Fig. 2 Figure 1 is a structural schematic diagram of the magnetic foreign body extraction forceps in the first embodiment of the present application; Fig. 3 Figure 1 is a structural schematic diagram of the magnetic foreign body extraction forceps in the first embodiment of the present application; Figure 1 is a structural schematic diagram of the magnetic foreign body extraction forceps in the first embodiment of the present application; DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0020] It should be noted that, in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer", "front", "back", "clockwise", "counterclockwise" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", "fourth" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "third", "fourth" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0021] In addition, it should be noted that, in the description of the present application, unless otherwise specifically specified and limited, the terms "provided", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; 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, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] The purpose of the present application is to provide a kind of magnetic foreign body extraction forceps to solve the problems existing in prior art, so that magnetic forceps beak can actively adsorb magnetic foreign body, improve the extraction efficiency of magnetic foreign body and reduce trauma.

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1 like Figs. 1-2 As shown, this embodiment provides a magnetic foreign body removal forceps, including a scissor-type forceps body 1. The forceps body 1 has a pair of jaws 2 on its jaws, at least one of which is a magnetic jaw 3. The magnetic jaw 3 is used to aspirate foreign bodies containing iron, cobalt, nickel, or other metal alloys, such as broken extraction burs, broken root canal files or reamers, broken dental alloy fillings, orthodontic brackets or wires, etc. This invention designs the jaws 2 to be made of magnetic material, establishing a magnetic-mechanical cooperative capture mechanism. Due to the directional sensitivity of magnetic adsorption, it can actively attract magnetic foreign bodies. The foreign body will swing as the magnetic jaw 3 (magnet) moves, and the swing feedback can provide real-time information on the foreign body's position. Combined with computed tomography (CT) scanning, it can accurately attract foreign bodies within a limited field of view, dynamically tracking the foreign body's position without multiple fluoroscopy sessions. This reduces radiation exposure and tissue trauma caused by blind tissue dissection. The neodymium iron boron magnet provides the initial attraction force, and the mechanical jaws provide secondary fixation, improving the efficiency of magnetic foreign body removal.

[0025] As an optional solution, in this embodiment, the forceps beak 2 is provided with different curvature and length models, and different curvature and length forceps beak 2 can be selected according to the needs of different positions in the oral cavity.

[0026] As an optional solution, the curvature of the forceps beak 2 in this embodiment includes 0°, 30°, 45°, 60°, and 90°. Different curvatures of the forceps beak 2 can be selected according to the needs of different positions in the oral cavity. In this embodiment, the curvature of the forceps beak 2 preferably uses three specifications of 0°, 45°, and 90°. Due to the narrow space in the anterior tooth area, the operation of straight forceps is limited, and the field of vision in the molar area is poor. Curved forceps with fixed angles are just right. They can adapt to the oral anatomy in three dimensions, and the multi-angle forceps beaks cover the anatomical differences of the entire tooth position. They can be used for different areas of the upper and lower anterior teeth, premolars, and molars without changing instruments. The working end width of the forceps beak is controlled below 3.2mm to facilitate deep penetration into the oral and maxillofacial tissue spaces.

[0027] As an optional solution, the end length of the forceps beak 2 in this embodiment includes 13cm, 16cm, 18cm, 20cm, 26cm, 25cm, 28cm and 30cm, and different lengths of forceps beak 2 can be selected according to the needs of different positions in the oral cavity.

[0028] As an alternative, in this embodiment, the material of the magnetic pincers 3 is neodymium iron boron, preferably a strong magnet, which facilitates the adsorption of magnetic foreign objects.

[0029] As an alternative, in this embodiment, the jaws 2 are connected to the jaws by threads, which facilitates disassembly and replacement with different models, saves manufacturing costs, and allows for flexible replacement of the magnetic jaws 3, avoiding magnetization of the entire instrument.

[0030] As an optional solution, in this embodiment, the front end of the forceps beak 2 is rounded to form a blunt tip, avoiding secondary trauma to the oral soft tissue. The front end of the forceps beak 2 is approximately 2mm wide and at least 1.5cm long. The gripping surface of the forceps beak 2 is provided with anti-slip texture, which is either graduated lines or cross grooves for anti-slip, making it less likely to slip when gripping foreign objects and improving the success rate of removing magnetic foreign objects. The accuracy of the graduated lines is 1mm, with a graduation value every 5mm from the tip to the rear end, making it easy to visually display the depth to which the forceps penetrate the gingival end after the gingiva is opened. Because the operating space in the oral cavity is limited, the flap cannot be fully opened, and the internal situation cannot be seen except by the endoscope. In this embodiment, the forceps beak 2 is designed to be slender and with a selectable bending angle, which can be used in conjunction with computed tomography (CT) scans to accurately locate and adsorb foreign objects within a limited field of view using the graduated lines on the forceps beak 2, effectively reducing tissue trauma.

[0031] As an optional solution, in this embodiment, the handle of the scissor pliers 1 is provided with a gripping wristband 4 and a pair of locking calipers 5. One of the locking calipers 5 is provided with several wedge-shaped teeth, and the other is provided with locking teeth. The two match each other to temporarily lock the opening of the pliers beak 2. When in use, the gripping wristband 4 is used for operation with two fingers, and the locking calipers 5 are used to lock the position of the clamping surface of the pliers beak 2 to prevent foreign objects from falling off due to changes in force during clamping.

[0032] In this embodiment, the magnetic foreign body removal forceps effectively shortens the operation time. The total operation time T = T1 (positioning) + T2 (separation) + T3 (removal). The magnetic attraction function of the magnetic forceps effectively shortens the positioning time T1, eliminating the need for repeated fluoroscopy. The optimized scale lines on the clamping surface of the forceps beak 2 shorten the separation time T2, achieving precise separation. The locking caliper 5, anti-slip clamping surface, and other multi-level fixation effectively stabilize the removal time T3, avoiding repetitive operations. This embodiment innovates the instrument structure of the oral forceps through the application of magnetic principles, meeting the process requirements of bedside workflow optimization. It systematically solves the four core problems of oral foreign body removal: difficult positioning, poor fit, high risk, and long operation time. In this embodiment, the magnetic foreign body removal forceps provide precise positioning, minimally invasive removal, and effectively reduce radiation.

[0033] Example 2 like Fig. 3 As shown, the difference between this embodiment and the first embodiment is that in this embodiment, the jaws 2 and the jaws are manufactured as a single piece. One jaw of the scissor-type pliers body 1 is a magnetic jaw, and the other jaw is made of a non-magnetic material. There is no mutual attraction between the two jaws, which avoids misoperation.

[0034] As an alternative, the scissor type forceps body 1 in the embodiment is provided with several types according to the different curvature and length of the forceps beak 2, so as to select the appropriate type of forceps beak 2 according to the needs of different surgical positions, so that the operation is more convenient and smooth.

[0035] The magnetic foreign body extraction forceps of the embodiment can be used with other original tools, and can be used in the mouth during the operation to attract the foreign body to the mucosa surface, and then the ordinary hemostatic forceps is used to extract the foreign body, without the need of customizing the instrument, and the cost is low.

[0036] Embodiment three Different from the embodiment one, the magnetic forceps beak 3 in the embodiment is provided with an electromagnetic coil inside, and a power supply and a control switch are configured, the magnetic force is controlled by the current, the magnetic force switch and the intensity degree are controlled, the magnetic force is adjustable, the interference of the permanent magnet to the storage environment is avoided, and the magnetic force adsorption is realized.

[0037] In the description of the present specification, the description referring to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "the embodiment", "a specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the described embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The principles and embodiments of the present application are described by applying specific examples in the present application, and the above embodiment description is only used to help understand the method of the present application and its core idea; at the same time, for the general technical personnel in the art, according to the idea of the present application, the specific embodiments and application range will be changed. In view of the above, the content of the present specification should not be understood as a limitation of the present application.

Claims

1. A magnetic foreign body extraction forceps characterized by: The scissors type forceps body is provided with forceps beaks on the forceps head, at least one of the forceps beaks is a magnetic forceps beak, and the magnetic forceps beak is used for sucking foreign matters containing iron, cobalt, nickel and metal alloy.

2. The magnetic foreign object retrieval forceps according to claim 1, wherein: The forceps beaks are provided with different bending degrees and length types.

3. The magnetic foreign object retrieval forceps according to claim 1, wherein: The bending degrees of the forceps beaks include 0°, 30°, 45°, 60° and 90°.

4. The magnetic foreign object retrieval forceps according to claim 1, wherein: The end length of the forceps beaks includes 13 cm, 16 cm, 18 cm, 20 cm, 26 cm, 25 cm, 28 cm and 30 cm.

5. The magnetic foreign object removal forceps according to claim 1, wherein: The material of the magnetic forceps beak is neodymium iron boron.

6. The magnetic foreign object retrieval forceps according to claim 1, wherein: The forceps beaks and the forceps head are integrally manufactured, one of the forceps blades of the scissors type forceps body is a magnetic forceps blade, and the other forceps blade is a non-magnetic material.

7. The magnetic foreign object retrieval forceps according to claim 6, wherein: The scissors type forceps body is provided with several types according to the forceps beaks with different bending degrees and lengths.

8. The magnetic foreign object retrieval forceps according to claim 1, wherein: The forceps beaks are connected to the forceps head through threads.

9. The magnetic foreign object retrieval forceps according to claim 1, wherein: The front end of the forceps beak is provided with a rounded corner, the clamping surface of the forceps beak is provided with anti-skid textures, the anti-skid textures are scale lines, the precision of the scale lines is 1 mm, and each 5 mm from the tip to the rear end is provided with a scale value.

10. The magnetic foreign object retrieval forceps according to claim 1, wherein: A pair of locking calipers and a holding ring are arranged on the handle of the scissors type forceps body.

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