Device for preparing viscous bone

Abstract

The utility model discloses a device for preparing a viscous bone, particularly relates to the technical field of medical instruments, and aims to solve the problems of tedious manual operation, long time and the like in the preparation of the viscous bone in the prior art, the device comprises a rod part, the rod part comprises a first rod part and a second rod part, the top of the first rod part is connected with a removing part, and the top of the second rod part is connected with the removing part. The tail part of the removing part is connected with the upper part of the filter, the removing part is used for removing the particle biological material mixed with the platelet aggregate, and the filter is used for filtering red blood cells in the blood while retaining the particle bone substitutes; the top of the second rod part is connected with the lower part of the filter, and the tail of the second rod part is connected with a supporting part which is in contact with the bottom of a test tube for supporting. According to the utility model, the combination of the granular bone substitute material and the platelet concentrate can be generated without manual operation in the mixing step.

Description

Technical Field

[0001] The utility model relates to a viscous bone preparation device, belonging to the technical field of medical equipment. Background Art

[0002] Platelet concentrates have been used in dental procedures such as alveolar ridge augmentation, periodontal surgery, alveolar preservation, implant surgery, endodontic regeneration, sinus augmentation, bisphosphonate-related osteonecrosis of the jaw (BRONJ), osteoradionecrosis, bone and soft tissue healing in oral communication closure (OAC), and oral ulcers. As the use of platelet concentrates in dentistry has evolved, numerous modifications to their original production protocols have been proposed, such as platelet-rich fibrin (PRF) protocols and the evolution of original platelet-rich plasma (PRP) to advanced centrifugation steps, combinations with albumin gels, and injectable PRF formulations. New acquisition methods and device proposals have been proposed to improve and facilitate handling during surgery.

[0003] With advances in surgical techniques, some have also proposed combining platelet concentrates with bone graft materials such as synthetic bone, xenografts, and allografts. A novel concept, first demonstrated in 2011 by Sohn et al., involved using a fibrin-rich autologous block and concentrated growth factors (CGF) to create a growth factor-rich bone graft matrix, also known as "cohesive bone" (SB), and later by Mourão et al. using a liquid / injectable platelet-rich fibrin matrix (i-PRF). By 2015, Sohn et al. provided a complete description of an optimized protocol for producing cohesive bone composed of a CGF membrane and a growth factor-rich bone graft matrix, along with a series of clinical case studies supporting its use, addressing the deficiencies of bone grafts in leading to minimal bone loss during healing.

[0004] These autologous biomaterials release large amounts of cytokines and autologous growth factors that aid healing and tissue restoration, although there is still no consensus on their actual impact on bone tissue formation. However, the ease of handling, the consequent reduction in operative time, and the aggregation of biomaterials for bone regeneration have become factors that have contributed to the use of surgical implants.

[0005] However, cohesive bone preparation involves artificial mixing of bone substitutes and blood derivatives, which may result in clot breakage, biomaterial loss, and impaired reproducibility of the resulting composite. Utility Model Content

[0006] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a device for preparing viscous bone, which can simplify the preparation of viscous bone and generate a combination of granular bone substitute material and platelet concentrate without manual operation in the mixing step.

[0007] To achieve the above objectives, the present invention is implemented by adopting the following technical solutions: a device for preparing viscous bone, comprising a rod portion, the rod portion comprising a first rod portion and a second rod portion, the top portion of the first rod portion being connected to a removal component, and the tail portion being connected to the upper portion of a filter, the removal component being used to remove microparticle bone substitute mixed with platelet aggregates, the filter being used to retain the microparticle bone substitute while filtering out the red blood cell portion of the blood;

[0008] The top of the second rod is connected to the bottom of the filter, and the tail is connected to a supporting component, and the supporting component is used to contact the bottom of the test tube for support.

[0009] Optionally, the removal component is crescent-shaped and has a thickness of 2 mm.

[0010] Optionally, the filter is cylindrical with a diameter of 12 mm and a height of 2 mm, and is provided with multiple filtering holes.

[0011] Optionally, the number of the filter holes is 9.

[0012] Optionally, the first rod portion and the second rod portion are connected to different positions on the upper and lower surfaces of the filter respectively.

[0013] Optionally, the supporting component includes a conical portion and a cylindrical portion, the upper end diameter of the conical portion is 2 mm, the lower end diameter is 4 mm, and the upper end is connected to the tail of the second rod portion, the cylindrical portion has a diameter of 4 mm and a height of 3.5 mm, and is connected to the lower end of the conical portion.

[0014] Optionally, the length of the first rod portion is 45 mm, and the length of the second rod portion is 38 mm.

[0015] Optionally, the adhesive bone preparation device is made of grade 4 pure titanium.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The utility model uses a viscous bone preparation device to mix a particle sample from synthetic bone, xenograft bone or autologous bone with an autologous platelet concentrate, making it easy to use and avoiding the need for further manipulation of the material. Manual operation can be avoided in the combined production process of platelet aggregates and bone replacement biomaterials, making the operation more convenient and the operation time greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a device for preparing adhesive bone in one embodiment of the present invention;

[0019] Figure 2This is a schematic diagram of the main structure of a device for preparing adhesive bone in one embodiment of the present invention;

[0020] In the figure: 1 first rod portion, 2 second rod portion, 3 removal component, 4 filter, 41 filter hole, 5 support component, 51 frustum portion, 52 cylindrical portion. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of this utility model. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] like Figure 1 and Figure 2 As shown, the adhesive bone preparation device provided in the embodiment of the present invention is made of grade 4 pure titanium, which includes a rod portion, and the rod portion is divided into a first rod portion 1 and a second rod portion 2. In this embodiment, the length of the first rod portion 1 is 45 mm, and the length of the second rod portion 2 is 38 mm.

[0025] The top of the first rod 1 is connected to a removal component 3 . The removal component 3 is crescent-shaped and 2 mm thick. The microparticle bone substitute mixed with the platelet aggregates can be removed through the removal component 3 .

[0026] The tail end of the first rod 1 is connected to the upper surface of the filter 4. In this embodiment, the filter 4 is cylindrical, specifically having a diameter of 12 mm and a height of 2 mm. The filter 4 is provided with a plurality of filter holes 41. In this embodiment, the number of filter holes 41 is nine, but this is not limited to nine. Any number of filter holes 41 that facilitates practical operation is acceptable. The filter 4 retains the microbone substitute while filtering out the red blood cells in the blood.

[0027] The top of the second rod 2 is connected to the lower surface of the filter 4, and the first rod 1 and the second rod 2 are connected to different positions on the upper and lower surfaces of the filter 4 respectively, that is, the first rod 1 and the second rod 2 are not in the same straight line.

[0028] The tail of the second rod 2 is connected to a supporting component 5, which is used to contact the bottom of the test tube for support. It includes a frustum 51 and a cylindrical portion 52. The upper end diameter of the frustum 51 is 2 mm, and the lower end diameter is 4 mm. Its upper end is connected to the tail of the second rod 2. The cylindrical portion 52 has a diameter of 4 mm and a height of 3.5 mm, and is connected to the lower end of the frustum 51.

[0029] The working principle of the present invention is as follows: venous blood is taken and placed in a test tube, and the viscous bone preparation device is inserted into the test tube, wherein the supporting component 5 of the viscous bone preparation device contacts the bottom of the test tube.

[0030] The microparticle bone substitute is added into the test tube through a small funnel. At this time, the microparticle bone substitute remains in the upper part of the test tube. The test tube is covered with a cap to seal the test tube.

[0031] The sealed test tube is placed in a centrifuge for centrifugation. After centrifugation, the micro-bone substitute remains above the filter 4. The removal component 3 is manually pulled out of the test tube to separate the micro-bone substitute from the red blood cells in the blood.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for preparing a viscous bone, characterized in that: The device comprises a rod portion, the rod portion being a first rod portion and a second rod portion, the top of the first rod portion being connected to a removal component, and the tail portion being connected to an upper portion of a filter, the removal component being used to remove microparticle bone substitutes mixed with platelet aggregates, and the filter being used to retain the microparticle bone substitutes while filtering out red blood cells in the blood; The top of the second rod is connected to the bottom of the filter, and the tail is connected to a supporting component, and the supporting component is used to contact the bottom of the test tube for support.

2. The adhesive bone preparation device according to claim 1, characterized in that: The removal part is crescent-shaped and has a thickness of 2 mm.

3. The adhesive bone preparation device according to claim 1, characterized in that The filter is cylindrical with a diameter of 12 mm and a height of 2 mm and is provided with a plurality of filtering holes.

4. The adhesive bone preparation device according to claim 3, characterized in that: The number of the filter holes is 9.

5. The adhesive bone preparation device according to claim 1, characterized in that: The first rod portion and the second rod portion are respectively connected to different positions on the upper and lower surfaces of the filter.

6. The adhesive bone preparation device according to claim 1, characterized in that The supporting component includes a conical portion and a cylindrical portion. The upper end diameter of the conical portion is 2 mm, the lower end diameter is 4 mm, and the upper end is connected to the tail of the second rod portion. The cylindrical portion has a diameter of 4 mm and a height of 3.5 mm, and is connected to the lower end of the conical portion.

7. The adhesive bone preparation device according to claim 1, characterized in that: The length of the first rod portion is 45 mm, and the length of the second rod portion is 38 mm.

8. The adhesive bone preparation device according to claim 1, characterized in that: The material of the adhesive bone preparation device is grade 4 pure titanium.

Images