Bone spoon

Abstract

The utility model discloses a kind of bone spoons, it is related to dental operating instruments field, and it includes spoon head, neck segment and handle section, spoon head front end is equipped with 25°~45° bone mouth and is rounded, neck segment is 20°~35° curved arc transition, handle section is 100~130mm long, diameter is 7~10mm, surface is equipped with antiskid structure, overall length is 150~180mm, inside can be equipped with counterweight and adjust barycenter, spoon head can be hemispherical, oval, sharp spoon shape, bevel shape, ring, groove shape or double-sided structure, and can be replaced connection;The bone spoon provided by the utility model can be sterilized by high temperature and high pressure, the structure is reasonable, flexible operation, can efficiently take bone, stretch into narrow hole bottom and take out bone dust that has been ground, reduce tissue damage, improve surgical safety and stability.

Description

Technical Field

[0001] This utility model relates to the field of dental surgical instruments, and in particular to a bone-removing spoon. Background Technology

[0002] In dental implant surgery, autologous bone grafts are often used as ideal bone graft materials. However, existing bone harvesting instruments still have some shortcomings in clinical application. For example, the spoon head shape is uniform and cannot adapt to the bone harvesting needs of different anatomical sites such as alveolar sockets, implant socket floors, alveolar ridges, buccal bone walls, and maxillary sinus floors. The edges of the spoon heads of some instruments are too sharp, which can easily cause unnecessary damage to surrounding soft or hard tissues. In addition, the handle design of traditional bone harvesting spoons mostly lacks ergonomic anti-slip measures, which can easily cause operator fatigue or instability during operation, affecting surgical precision. At the same time, the overall center of gravity of the instruments is unreasonable, and the operation balance is poor, which increases the difficulty of clinical use.

[0003] Based on the above problems, there is an urgent need to provide a bone retrieval spoon that is structurally sound, comfortable to operate, and safe and reliable, so as to improve surgical efficiency and reduce the risk of tissue damage. Utility Model Content

[0004] This invention aims to address the shortcomings of existing technologies by providing a novel dental bone-removing spoon. Through a reasonable spoon head design, curved neck structure, and handle structure, it enhances the operator's comfort and control.

[0005] On the one hand, this utility model provides a bone-removing spoon, which includes a spoon head 1, a curved neck section 2, and a handle section 3 connected in sequence.

[0006] in:

[0007] The spoon head 1 is a slender cylindrical shape, and its front end is provided with a spoon-shaped bone-taking port with an opening angle of 25° to 45°;

[0008] The curved neck section 2 and the spoon head 1 are connected by an arc transition, with a bending angle of 20° to 35°.

[0009] The handle section 3 has a length of 100-130mm and a diameter of 7-10mm, and its surface is provided with an anti-slip groove structure;

[0010] The overall length of the bone-removing spoon is 150-180 mm.

[0011] In one optional embodiment, the diameter of the bone extraction opening at the end of the spoon head 1 is 1.5 to 4 mm, and the edge of the spoon opening is rounded and chamfered with a radius of 0.1 to 0.3 mm to reduce tissue damage.

[0012] In one optional embodiment, the length of the neck section 2 is 10-30 mm, the cross-section is circular, and the diameter is 1.8-2.5 mm.

[0013] In one optional embodiment, the handle section 3 is provided with two sets of symmetrical anti-slip grooves on both sides. Each set of anti-slip grooves consists of two oppositely arranged elliptical grooves with a groove depth of 0.3 to 0.8 mm.

[0014] In one optional embodiment, the two ends of the handle section 3 are respectively provided with a spoon head 1 and a curved neck section 2 to form a double-ended bone harvesting structure. The spoon head 1 and the curved neck section 2 can be integrally formed and fixed to the handle section 3. The two spoon heads are the same or different in shape to adapt to the bone harvesting needs of different anatomical sites.

[0015] In one alternative embodiment, the middle part of the handle section 3 is a cylindrical structure, and the two ends gradually transition to the connection of the neck section and the tail cap section, forming a continuously transitioning conical structure. The conical structure is provided with mounting holes for connecting the bent neck section 2.

[0016] In one alternative embodiment, the middle part of the handle section 3 is a cylindrical structure, and the two ends gradually transition to the connection of the neck section and the tail cap section, forming a continuously transitioning conical structure.

[0017] In one optional embodiment, the spoon head 1 and the curved neck section 2 are integrally formed and are interchangeably mounted to the handle section 3, using a plug-in or screw-in structure to adapt to different sizes of spoon mouths.

[0018] In one optional embodiment, the spoon head 1 and the curved neck section 2 are made of medical stainless steel SUS420J2 or 316L, and the hardness is HRC45-50 after heat treatment.

[0019] In one alternative embodiment, the handle segment 3 is integrally CNC machined or laser welded, and its surface is electrolytically polished or sandblasted, with a roughness Ra≤0.8 micrometers.

[0020] In one alternative embodiment, it includes:

[0021] The handle section 3 of the bone retrieval spoon is equipped with a counterweight core to adjust the overall center of gravity of the instrument.

[0022] and / or

[0023] The center of gravity of the bone-removing spoon is located within the middle 1 / 3 of the handle section 3 to achieve balance control during operation.

[0024] In one optional embodiment, the surface of the handle section 3 is provided with an ergonomic anti-slip area, which is treated with rubber spraying, knurling or micro-concave surface, and the surface friction coefficient is 0.6 to 0.9.

[0025] and / or

[0026] The entire device can be sterilized under high temperature and high pressure, and has a temperature resistance range greater than 100 degrees Celsius.

[0027] and / or

[0028] The surface of the spoon head is coated with a microporous coating or a titanium ion plating to enhance its wear resistance and corrosion resistance.

[0029] In one alternative embodiment, the spoon head includes:

[0030] The hemispherical spoon head has a hemispherical concave structure at the mouth and a smooth inner wall. It is used to collect the ground bone fragments at the bottom of the alveolar socket and the bottom of the implant cavity, which facilitates quantitative extraction.

[0031] and / or

[0032] The elliptical spoon head has an elliptical cross-section with a major axis of 3-4 mm and a minor axis of 2-2.5 mm, and is suitable for bone harvesting operations on the alveolar ridge or buccal bone wall.

[0033] and / or

[0034] The pointed spoon-shaped tip is tapered at the front and wide at the back, giving it a streamlined shape. It is used for precise scraping in narrow interradial areas or the floor of the maxillary sinus.

[0035] and / or

[0036] The slanted spoon head is formed by cutting the front edge of the spoon at an angle of 10° to 25°, which is conducive to scraping a thin layer of bone powder from the curved bone wall;

[0037] and / or

[0038] The circular scraper head has a closed ring-shaped opening with a 0.2-0.4mm micro-blade on the inner side, which is used to scrape the surface of dense bone and collect bone fragments.

[0039] and / or

[0040] The concave spoon head has a longitudinal guide groove or groove in the middle of the spoon surface to guide the bone meal into the spoon and prevent it from scattering;

[0041] and / or

[0042] The double-sided bone-removing spoon has symmetrical bone-removing openings on both sides of the spoon body, with an angle difference of 15° to 30°, and can be used alternately on both sides.

[0043] The bone retrieval spoon provided by this utility model effectively improves upon the shortcomings of existing bone retrieval instruments through the rational design of the spoon head, curved neck section, and handle section. Firstly, the spoon head adopts a slender cylindrical structure with a 25°–45° spoon-shaped bone retrieval opening, ensuring not only efficient bone retrieval but also significantly reducing damage to soft and hard tissues after rounding and chamfering. Simultaneously, the spoon head can be designed as a hemispherical, elliptical, pointed spoon, oblique, ring-shaped scraper, grooved, or double-sided structure to meet the bone retrieval needs of different anatomical areas such as the alveolar socket, the bottom of the implant cavity, the alveolar ridge, the buccal bone wall, and the maxillary sinus floor, thus enhancing its adaptability. Secondly, the curved neck section adopts a 20°–35° bending angle and a rounded transition design, ensuring ease of access to narrow surgical areas while enhancing operational flexibility and controllability. Furthermore, the handle section features a rationally designed length and diameter, with symmetrical elliptical anti-slip grooves on the surface that form a continuously transitioning conical structure. Combined with the ergonomic anti-slip zone, this significantly improves grip comfort and stability, effectively preventing slippage during surgery. Simultaneously, the internal counterweight core distributes the overall center of gravity within the middle third of the handle, ensuring balance during operation and reducing surgeon fatigue. In terms of materials, the spoon head and curved neck are made of medical-grade stainless steel SUS420J2 or 316L, achieving a hardness of HRC45-50 after heat treatment, possessing excellent wear resistance and strength. The handle section is formed by CNC milling or laser welding, with a surface treated by electrolytic polishing or sandblasting, achieving a roughness as low as Ra≤0.8 micrometers. The entire design not only withstands high-temperature and high-pressure sterilization but can also be further enhanced with surface coatings or titanium ion plating to improve corrosion resistance and durability. In summary, this novel bone-harvesting spoon not only improves surgical safety and operational precision but also effectively extends the instrument's lifespan, demonstrating promising clinical application prospects. Attached Figure Description

[0044] This specification sets forth the complete and illustrative disclosure of this application, including its best practices, to those skilled in the art. Reference is made to the accompanying drawings, in which:

[0045] Figure 1 This diagram shows an overall structural schematic of a bone-removing spoon according to an embodiment of the present invention.

[0046] Figure 2 This figure shows a front view of a bone-removing spoon according to an embodiment of the present invention;

[0047] Figure 3 This image shows a top view of a bone-removing spoon according to an embodiment of the present invention;

[0048] Figure 4 The image shows a side view of a bone-removing spoon according to an embodiment of the present invention;

[0049] Figure 5 This diagram shows the overall structure of a double-headed bone-removing spoon according to an embodiment of the present invention.

[0050] Figure 6 This diagram shows an assembly of a double-headed bone-removing spoon according to an embodiment of the present invention. Detailed Implementation

[0051] The embodiments of this application will now be described in detail with reference to the figures, including one or more examples of the embodiments of this application. Each example is provided for the purpose of explaining this application and not for limiting it. In fact, those skilled in the art will appreciate that various modifications and variations can be made to this application without departing from the scope or spirit of this application. For example, a feature illustrated or described as part of one embodiment may be used with another embodiment to produce yet another embodiment. As used in this specification, the terms “first,” “second,” etc., are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of the components. As used in this specification, unless the context clearly indicates otherwise, the terms “a,” “an,” “the,” and “the” are intended to indicate the presence of one or more elements. The terms “comprising,” “including,” and “having” are intended to be inclusive and mean that there may be other elements in addition to those listed.

[0052] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0053] Figure 1 This diagram shows an overall structural schematic of a bone-removing spoon according to an embodiment of the present invention. Figure 2 This figure shows a front view of a bone-removing spoon according to an embodiment of the present invention; Figure 3 This image shows a top view of a bone-removing spoon according to an embodiment of the present invention; Figure 4 This diagram shows a side view of a bone-removing spoon according to an embodiment of the present invention; as shown Figure 1-4As shown, the bone retrieval spoon of this utility model is used in dental implant surgery to extract autologous bone or bone powder from the alveolar socket or the bottom of the implant cavity. The bone retrieval spoon includes a spoon head 1, a curved neck section 2, and a handle section 3 connected in sequence. The spoon head 1 is a slender cylindrical shape with a spoon-shaped bone retrieval port with an opening angle of 25° to 45° at its front end. The curved neck section 2 is connected to the spoon head 1 by an arc transition with a bending angle of 20° to 35°. The handle section 3 is 100 to 130 mm long and 7 to 10 mm in diameter, and has an anti-slip groove structure on its surface. The overall length of the bone retrieval spoon is 150 to 180 mm.

[0054] In one embodiment, the diameter of the bone extraction opening at the end of the spoon head 1 is 1.5 to 4 mm, and the edge of the spoon opening is rounded and chamfered with a radius of 0.1 to 0.3 mm to reduce tissue damage.

[0055] In one embodiment, the length of the bent neck section 2 is 10-30 mm, the cross-section is circular, and the diameter is 1.8-2.5 mm.

[0056] In one embodiment, the handle section 3 has two sets of symmetrical anti-slip grooves on both sides. Each set of anti-slip grooves consists of two oppositely arranged elliptical grooves with a groove depth of 0.3 to 0.8 mm.

[0057] In one embodiment, the two ends of the handle section 3 are respectively provided with a spoon head 1 and a curved neck section 2, forming a double-ended bone harvesting structure. The spoon head 1 and the curved neck section 2 can be integrally formed and fixed to the handle section 3. The two spoon heads can be the same or different in shape to adapt to the bone harvesting needs of different anatomical sites. Figure 5 This diagram shows the overall structure of a double-headed bone-removing spoon according to an embodiment of the present invention. Figure 6This diagram illustrates an assembly of a double-headed bone harvesting spoon according to an embodiment of the present invention. As shown, in this embodiment, the bone harvesting spoon has a curved neck section 2 and a spoon head 1 at both ends of the handle section 3, forming a double-headed bone harvesting structure. Each spoon head 1 and curved neck section 2 can be integrally formed and fixedly connected to the handle section 3, or a detachable installation structure can be adopted, such as a plug-in or screw-in connection, to achieve quick replacement of the spoon head. With this structural design, the double-headed spoons can be combined into the same or different shapes according to clinical needs. For example, one end is a hemispherical spoon head for collecting ground bone fragments from the bottom of the alveolar socket or implant cavity, and the other end is a pointed spoon head for precise scraping in narrow interroot areas or the maxillary sinus floor area; or one end is an oval spoon head adapted to the buccal bone wall for bone harvesting, and the other end is a beveled spoon head to facilitate scraping a thin layer of bone powder on curved bone walls. This double-ended bone retrieval spoon not only expands the application range of a single instrument and avoids frequent instrument changes during surgery, but also can be modularly combined to meet different clinical operation needs, improving operational efficiency and flexibility. At the same time, the anti-slip grooves on the handle and the counterweight design ensure balance and stability during double-ended operation.

[0058] In one embodiment, the handle section 3 has a cylindrical structure in the middle, gradually transitioning to a continuous tapered structure at both ends where it connects to the neck section and the tail cap section. The end of the tapered structure has a mounting hole for installing the curved neck section 2. The mounting hole can be a circular through hole or a threaded hole with internal threads, used to mate with the curved neck section 2. The tail end of the curved neck section 2 has a corresponding insertion part or threaded part. When using a plug-in structure, the curved neck section can be inserted into the mounting hole of the handle section 3 through an interference fit or a snap-fit ​​structure; when using a screw-in structure, the curved neck section can be screwed into the mounting hole and fixed. This structural design not only ensures the firmness and stability of the connection between the handle section 3 and the curved neck section 2, but also enables quick assembly and disassembly of the spoon head 1 and the curved neck section 2, allowing for the replacement of spoon heads of different sizes or shapes, thereby meeting the needs of different clinical bone harvesting operations. Furthermore, the continuous transition design of this tapered structure enhances the overall aesthetics and ergonomics of the instrument, making it more comfortable and stable for the operator to hold and operate.

[0059] In one embodiment, the middle part of the handle section 3 is a cylindrical structure, and the two ends gradually transition to the connection of the neck section and the tail cap section, forming a continuously transitioning conical structure.

[0060] In one embodiment, the spoon head 1 and the curved neck section 2 are integrally formed and are replaceably installed onto the handle section 3, using a plug-in or screw-in structure to adapt to different sizes of spoon mouths.

[0061] In one embodiment, the spoon head 1 and the bent neck section 2 are made of medical stainless steel SUS420J2 or 316L, and the hardness after heat treatment is HRC45-50.

[0062] In one embodiment, the handle segment 3 is integrally CNC machined or laser welded, and its surface is electrolytically polished or sandblasted, with a roughness Ra≤0.8 micrometers.

[0063] In one embodiment, a counterweight core is provided inside the handle section 3 of the bone retrieval spoon to adjust the overall center of gravity of the instrument.

[0064] In one embodiment, the center of gravity of the bone-removing spoon is located within the middle third of the handle section 3 to achieve balance control during operation.

[0065] In one embodiment, the surface of the handle section 3 is provided with an ergonomic anti-slip area, which is treated with rubber spraying, knurling or micro-concave surface, and the surface friction coefficient is 0.6 to 0.9.

[0066] In one embodiment, the entire structure can be sterilized under high temperature and high pressure, with a temperature resistance range greater than 100 degrees Celsius.

[0067] In one embodiment, the surface of the spoon head is provided with a microporous coating or a titanium ion plating to enhance its wear resistance and corrosion resistance.

[0068] In one embodiment, the spoon head includes a hemispherical spoon head, wherein the spoon mouth has a hemispherical concave structure and a smooth inner wall, for collecting the ground bone fragments at the bottom of the alveolar socket and the bottom of the implant cavity, so as to facilitate quantitative extraction;

[0069] The elliptical spoon head has an elliptical cross-section with a major axis of 3-4 mm and a minor axis of 2-2.5 mm, and is suitable for bone harvesting operations on the alveolar ridge or buccal bone wall.

[0070] The pointed spoon-shaped tip is tapered at the front and wide at the back, giving it a streamlined shape. It is used for precise scraping in narrow interradial areas or the floor of the maxillary sinus.

[0071] The slanted spoon head is formed by cutting the front edge of the spoon at an angle of 10° to 25°, which is conducive to scraping a thin layer of bone powder from the curved bone wall;

[0072] The circular scraper head has a closed ring-shaped opening with a 0.2-0.4mm micro-blade on the inner side, which is used to scrape the surface of dense bone and collect bone fragments.

[0073] The concave spoon head has a longitudinal guide groove or groove in the middle of the spoon surface to guide the bone meal into the spoon and prevent it from scattering;

[0074] The double-sided bone-removing spoon has symmetrical bone-removing openings on both sides of the spoon body, with an angle difference of 15° to 30°, and can be used alternately on both sides.

[0075] The bone-removing spoon of this invention has an overall length of approximately 165mm and is composed of a spoon head, a curved neck section, and a handle section connected sequentially, as shown below. Figure 2As shown, the diameter of the spoon head is 2.21mm-2.5mm, and the length of the spoon head is 27.3mm. Figure 4 As shown, the horizontal distance between the tip of the spoon and the handle section is 17.7mm. The edge of the tip of the spoon is rounded with a radius of 0.2mm to reduce damage to soft and hard tissues. The curved neck section is approximately 10mm long and 2.2mm in diameter, with a bending angle of 30°, achieving a natural arc transition for easy access to the alveolar socket, the bottom of the implant cavity, or the floor of the maxillary sinus. The handle section is approximately 120mm long and 8.5mm in diameter, with two sets of symmetrical elliptical anti-slip grooves on the surface. The grooves are 0.5mm deep, cylindrical in the middle, and gradually transition to a conical structure at both ends. A counterweight core can be installed inside to keep the overall center of gravity of the instrument within the middle 1 / 3 of the handle, thereby improving balance and stability during surgery. The spoon head and curved neck section are made of medical-grade stainless steel SUS420J2 or 316L, achieving a hardness of HRC45-50 after heat treatment. The handle section is integrally machined and electropolished, with a surface roughness Ra≤0.8 micrometers. The entire design can withstand high-temperature and high-pressure sterilization (>100℃). Furthermore, the spoon head surface can be treated with titanium ion plating or a microporous coating to enhance wear resistance and corrosion resistance. This bone-removing spoon not only features multiple replaceable spoon heads to adapt to different bone-removing needs, but also reduces tissue damage through rounded corner design. Simultaneously, its ergonomic anti-slip zone and reasonable center of gravity distribution ensure comfortable and precise operation, significantly improving the safety and practicality of clinical use.

[0076] The description of this utility model is given for illustrative and descriptive purposes only, and is not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model and design various embodiments with various modifications suitable for a particular purpose.

[0077] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bone-removing spoon, characterized in that, The bone-removing spoon comprises a spoon head (1), a curved neck section (2), and a handle section (3) connected in sequence. in: The spoon head (1) is a slender cylindrical shape, and its front end is provided with a spoon-shaped bone-taking port with an opening angle of 25° to 45°; The curved neck section (2) and the spoon head (1) are connected by an arc transition, with a bending angle of 20° to 35°. The handle section (3) is 100-130mm long and 7-10mm in diameter, and has an anti-slip groove structure on its surface; The overall length of the bone-removing spoon is 150-180 mm.

2. The bone-removing spoon according to claim 1, characterized in that, The diameter of the bone extraction port at the end of the spoon head (1) is 1.5 to 4 mm, and the edge of the spoon mouth is rounded and chamfered with a radius of 0.1 to 0.3 mm to reduce tissue damage.

3. The bone-removing spoon according to claim 1 or 2, characterized in that, The length of the bent neck section (2) is 10-30 mm, the cross-section is circular, and the diameter is 1.8-2.5 mm.

4. The bone-removing spoon according to claim 1, characterized in that, The handle section (3) has two sets of symmetrical anti-slip grooves on both sides. Each set of anti-slip grooves consists of two elliptical grooves arranged opposite each other, with a groove depth of 0.3 to 0.8 mm.

5. The bone-removing spoon according to claim 4, characterized in that, Also includes: The handle section (3) is provided with a spoon head (1) and a curved neck section (2) at both ends to form a double-ended bone harvesting structure. The spoon head (1) and the curved neck section (2) can be integrally formed and fixed to the handle section (3). The two spoon heads are the same or different in shape to adapt to the bone harvesting needs of different anatomical sites. and / or The middle part of the handle section (3) is cylindrical, and the two ends gradually transition to the connection of the neck section and the tail cap section, forming a continuously transitioning conical structure. The conical structure is provided with mounting holes for connecting the bent neck section (2).

6. The bone-removing spoon according to claim 1, characterized in that, include: The spoon head (1) and the curved neck section (2) are integrally formed and are installed in a replaceable manner onto the handle section (3). The spoon head is designed to be plugged in or screwed in to accommodate spoons of different sizes.

7. The bone-removing spoon according to claim 1, characterized in that, The spoon head (1) and the bent neck section (2) are made of medical stainless steel SUS420J2 or 316L, and the hardness is HRC45~50 after heat treatment; and / or The handle section (3) is formed by CNC milling or laser welding, and its surface is treated by electrolytic polishing or sandblasting, with a roughness Ra≤0.8 micrometers.

8. The bone-removing spoon according to claim 1, characterized in that, include: The handle section (3) of the bone retrieval spoon is equipped with a counterweight core to adjust the overall center of gravity of the instrument; and / or The center of gravity of the bone-removing spoon is located in the middle 1 / 3 of the handle section (3) to achieve balance control during operation.

9. The bone-removing spoon according to claim 1, characterized in that, The surface of the handle section (3) is provided with an ergonomic anti-slip area, which is treated with rubber spraying, knurling or micro-concave surface, and the surface friction coefficient is 0.6 to 0.

9. and / or The entire device can be sterilized under high temperature and high pressure, and has a temperature resistance range greater than 100 degrees Celsius. and / or The surface of the spoon head is coated with a microporous coating or a titanium ion plating to enhance its wear resistance and corrosion resistance.

10. The bone-removing spoon according to claim 1, characterized in that, The spoon head includes: The hemispherical spoon head has a hemispherical concave structure at the mouth and a smooth inner wall. It is used to collect the ground bone fragments at the bottom of the alveolar socket and implant cavity, which is convenient for quantitative extraction. and / or The elliptical spoon head has an elliptical cross-section with a major axis of 3-4 mm and a minor axis of 2-2.5 mm, and is suitable for bone harvesting operations at the alveolar ridge or the bottom of the implant cavity; and / or The pointed spoon-shaped tip is tapered at the front and wide at the back, giving it a streamlined shape. It is used for precise scraping in narrow interradial areas or the floor of the maxillary sinus. and / or The slanted spoon head is formed by cutting the front edge of the spoon at an angle of 10° to 25°, which is conducive to scraping a thin layer of bone powder from the curved bone wall; and / or The circular scraper head has a closed ring-shaped opening with a 0.2-0.4mm micro-blade on the inner side, which is used to scrape the surface of dense bone and collect bone fragments. and / or The concave spoon head has a longitudinal guide groove or groove in the middle of the spoon surface to guide the bone meal into the spoon and prevent it from scattering; and / or The double-sided bone-removing spoon has symmetrical bone-removing openings on both sides of the spoon body, with an angle difference of 15° to 30°, and can be used alternately on both sides.

Images