Bone filling prosthesis
By designing a precise fixation structure and drug release mechanism for bone-filled prostheses, the problem of insufficient adaptability of existing prostheses has been solved, achieving high adaptability and wound care effects.
Patent Information
- Application Number
- CN202422899469.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing bone-filled prostheses have minor deviations during use, resulting in insufficient adaptability, and need to be modified according to usage requirements.
A bone-filled prosthesis was designed, including a scaffold, mounting plate, support column, connecting plate, rotating column, connecting shell, and locking plate. The prosthesis is precisely fixed through rotation and locking mechanisms. A drug-loaded plate and biodegradable microspheres are placed on the outer wall of the scaffold to achieve long-term sustained release of drugs.
It improves the adaptability and flexibility of the prosthesis, reduces the need for modifications, and promotes wound healing through sustained drug release.
Smart Images
Figure CN223944521U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field especially relates to a bone filling prosthesis. BACKGROUND
[0002] Joint replacement is a kind of surgical operation for treating severe joint disease, and the purpose is to treat the bone defect condition caused by the destruction of skeletal integrity and the loss of bone tissue, and the bone filling prosthesis is used to replace the damaged articular surface to restore joint function, relieve pain and improve the quality of life of patients.
[0003] The bone filling prosthesis is a kind of medical instrument for replacing damaged joints, which plays a key role in relieving pain and restoring joint function. The shape and curvature of the existing articular surface are designed according to the anatomical structure of the normal joint. For example, the spherical shape of the femoral head prosthesis and the concave shape of the acetabular prosthesis match each other, and the size has multiple specifications to adapt to the joint size and shape of different patients. However, artificial prosthesis is usually integrally formed, although there are multiple specifications, but there will be detail deviation when using, and then it is necessary to modify according to the use demand, so as to reduce the adaptability requirement of the prosthesis when using. SUMMARY
[0004] In order to make up for the above shortcomings, the utility model provides a kind of bone filling prosthesis, it aims at improving the detail deviation when using in prior art, and then it is necessary to modify according to the use demand, so as to reduce the adaptability requirement of the prosthesis when using.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of bone filling prosthesis, including support, the inner wall of the support is fixedly connected with mounting plate on upper and lower sides, the top wall of the mounting plate at bottom is fixedly connected with support column, the top wall of the mounting plate at top is fixedly connected with connecting plate, the front and rear sides of the connecting plate are rotatably connected with two rotating columns, the outer wall of the rotating column is rotatably connected with connecting shell, the front and rear sides of the left connecting shell are rotatably connected with locking plate, the front and rear sides of the right connecting shell are provided with locking slot, the right side of two locking plates is respectively engaged with corresponding locking slot, the top wall of the connecting plate is fixedly connected with clamping column in middle part, the middle part of the support column is provided with nursing mechanism, and the nursing mechanism is used to improve postoperative nursing effect.
[0006] As a further description of the above technical scheme:
[0007] The nursing mechanism comprises a connecting arc plate, the inner wall of the connecting arc plate is fixedly connected to the middle part of the supporting column, the outer wall of the connecting arc plate is equidistantly provided with a plurality of mounting grooves, the inner wall of each of the plurality of mounting grooves is fixedly connected with a nursing plate, the outer wall of the support is equidistantly provided with a plurality of drug loading plates, the inner part of each of the plurality of drug loading plates is fixedly connected with a biodegradable microsphere, and the side of the nursing plate is provided with a plurality of release holes.
[0008] As a further description of the above technical solution:
[0009] The plurality of release holes are equidistantly and symmetrically arranged, and the outer wall of each of the plurality of biodegradable microspheres is clamped with the inner wall of the corresponding release hole.
[0010] As a further description of the above technical solution:
[0011] The left side of the right connecting shell is fixedly connected with connecting columns at the front end and the rear end, the right side of the left connecting shell is provided with connecting grooves at the front end and the rear end, and the left sides of the two connecting columns are clamped with the corresponding connecting grooves.
[0012] As a further description of the above technical solution:
[0013] The top wall and the left side of the connecting plate are fixedly connected with two limiting columns, and the plurality of limiting columns are symmetrically designed.
[0014] As a further description of the above technical solution:
[0015] The outer wall of the supporting column is fixedly connected with a gasket top ring at the top end, and is fixedly connected with a gasket bottom ring at the bottom end.
[0016] As a further description of the above technical solution:
[0017] The adjacent sides of the two connecting shells are fixedly connected with soft rubber pads, and the adjacent sides of the two soft rubber pads are provided with an arc.
[0018] As a further description of the above technical solution:
[0019] The upper end and the lower end of the support are designed to be smooth, and the outer wall of the two connecting shells is provided with an inclined surface.
[0020] The utility model has the advantages of the following beneficial effects:
[0021] 1. The utility model discloses a connecting plate is opened to the outside through the rotation of the rotation column, and the prosthesis that contacts with the joint surface is clamped and connected with the clamping column, and under the connection of a plurality of limiting columns, the joint surface prosthesis completes the preliminary installation of the support, and then turns two connecting shells inward, and the two connecting shells are locked by rotating two locking plates, so that the bottom of the joint surface prosthesis is fixed, thereby improve the adaptation requirement of bone filling prosthesis, increase the flexibility of the prosthesis.
[0022] 2. The utility model discloses a drug loading plate is set up on the outer wall of the support, and the drug loading plate bears the drug and biodegradable microspheres, after the prosthesis is implanted, the drug is released through the decomposition of biodegradable microspheres, and is discharged through a plurality of release holes in the inside of the nursing plate, thereby achieving the long-term and slow-release effect of the drug, and promoting the recovery of the wound. DRAWINGS
[0023] Figure 1 A perspective view of a bone filling prosthesis is provided for the utility model;
[0024] Figure 2 A front view of a bone filling prosthesis is provided for the utility model;
[0025] Figure 3 A structure diagram of a limiting column of a bone filling prosthesis is provided for the utility model;
[0026] Figure 4 A split view of a connecting shell of a bone filling prosthesis is provided for the utility model;
[0027] Figure 5 A split view of a nursing mechanism of a bone filling prosthesis is provided for the utility model.
[0028] Legend:
[0029] 1, support, 2, nursing mechanism, 201, connecting arc plate, 202, installation groove, 203, drug loading plate, 204, nursing plate, 205, release hole, 206, biodegradable microsphere, 3, installation plate, 4, support column, 5, connecting plate, 6, rotation column, 7, connecting shell, 8, locking plate, 9, locking groove, 10, clamping column, 11, limiting column, 12, connecting column, 13, connecting groove, 14, gasket top ring, 15, soft rubber pad, 16, gasket bottom ring. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.
[0031] With reference to Figure 1 , Figure 3 and Figure 4 , the present utility model provides an embodiment: a bone filling prosthesis, including support 1, the inner wall of support 1 is fixedly connected with mounting plate 3 on the upper side and the lower side, through the connection of mounting plate 3, it installs and connects to support column 4 and connecting plate 5, the top wall of bottom mounting plate 3 is fixedly connected with support column 4, through support column 4, it completes the support inside support 1, provides the effect of stress support, the top wall of top mounting plate 3 is fixedly connected with connecting plate 5, the front and rear sides of connecting plate 5 are rotatably connected with two rotating columns 6, under the connection of rotating column 6, connecting shell 7 completes the effect of rotation, the outer wall of rotating column 6 is rotatably connected with connecting shell 7, through the overturning of connecting shell 7, it reaches the fixed effect of joint surface prosthesis bottom, the front and rear sides of left connecting shell 7 are rotatably connected with locking plate 8, under the overturning of locking plate 8, it is engaged with the locking slot 9 of right connecting shell 7, the front and rear sides of right connecting shell 7 are provided with locking slot 9, and then under the locking of locking plate 8, two connecting shells 7 complete locking connection, the right side of two locking plates 8 is engaged with corresponding locking slot 9 respectively, so that the bottom of joint surface prosthesis is fixed, so that the effect of customizing joint surface prosthesis fixed installation is achieved, the adaptability of prosthesis is improved, the top wall of connecting plate 5 is fixedly connected with clamping column 10 in the middle, through clamping column 10, it completes the further fixation of joint surface prosthesis, the middle of support column 4 is provided with nursing mechanism 2, nursing mechanism 2 is used for improving postoperative nursing effect; the left side of right connecting shell 7 is fixedly connected with connecting column 12 at the front and rear ends, the right side of left connecting shell 7 is provided with connecting slot 13 at the front and rear ends, the left side of two connecting columns 12 is engaged with corresponding connecting slot 13 respectively, through the left side of two connecting columns 12 is engaged with corresponding connecting slot 13 respectively, the connecting strength between connecting shells 7 is improved;
[0032] With reference to Figure 1 , Figure 2 and Figure 5The nursing mechanism 2 comprises a connecting arc plate 201, the inner wall of the connecting arc plate 201 is fixedly connected to the middle part of the support column 4, the connecting arc plate 201 is used for fixedly installing the nursing plate 204, the outer wall of the connecting arc plate 201 is equidistantly provided with a plurality of installation grooves 202, the installation effect is improved through the plurality of installation grooves 202, the inner wall of each of the plurality of installation grooves 202 is fixedly connected with the nursing plate 204, the nursing plate 204 is used for making the surrounding bone tissue well integrated and providing a good nursing space for the prosthesis, the outer wall of the support frame 1 is equidistantly provided with a plurality of drug loading plates 203, the drug loading plates 203 are used for fixing the biodegradable microspheres 206, the inner part of each of the drug loading plates 203 is fixedly connected with a plurality of biodegradable microspheres 206, the drug loading plates 203 are filled with drugs, the drugs are continuously released into the surrounding tissue with the gradual degradation of the microspheres, a plurality of release holes 205 are formed in one side of the nursing plate 204, the release rate of the drugs is controlled through the plurality of release holes 205, the plurality of release holes 205 are equidistantly and symmetrically arranged, the uniformity of the drug release is improved through the equidistant arrangement of the plurality of release holes 205, the outer wall of each of the plurality of biodegradable microspheres 206 is clamped with the inner wall of the corresponding release hole 205;
[0033] With reference to Figure 1 , Figure 4 and Figure 5 , the top wall of the connecting plate 5 is fixedly connected with two limiting columns 11 on the left side and the right side, the plurality of limiting columns 11 are symmetrically designed, the limiting effect of the articular surface prosthesis is improved through the plurality of limiting columns 11; the outer wall of the support column 4 is fixedly connected with a gasket top ring 14 at the top end and a gasket bottom ring 16 at the bottom end, the stress resistance effect of the support frame 1 is improved through the gasket top ring 14 and the gasket bottom ring 16, and the service life of the support frame 1 is improved; the adjacent sides of the two connecting shells 7 are fixedly connected with soft rubber pads 15, the fixing effect of the connecting shell 7 is improved through the two soft rubber pads 15, and the adjacent sides of the two soft rubber pads 15 are provided with an arc;
[0034] Working principle: when starting to use, the corresponding articular surface is 3D printed through the concave-convex surface of the bone injury, and then the joint position is well adapted, then the two connecting shells 7 are opened in the direction away from each other, the bottom of the articular surface prosthesis is clamped with the clamping column 10 at the top of the connecting plate 5, the fixation of the articular surface prosthesis is completed, then the two connecting shells 7 are turned inward, and the right side of the locking plate 8 is locked with the locking groove 9, the left connecting shell 7 is fixed with the right connecting shell 7, and the bottom of the articular surface prosthesis is fixed, so that the adaptation demand of the bone filling prosthesis to the joint surface of different degrees of injury is improved, the flexibility of the prosthesis is increased, and the prosthesis needs to be modified according to the use demand is avoided;
[0035] And through the opening of the drug loading plate 203 in the outer wall of the bracket 1, the drug loading plate 203 bears the drug and the biodegradable microspheres 206, after the installation of the nursing plate 204, the biodegradable microspheres 206 are clamped with the release hole 205 inside the nursing plate 204, after the implantation of the prosthesis, with the gradual degradation of the biodegradable microspheres 206, the drug will be continuously released to the surrounding tissue, and then the drug will be discharged through the plurality of release holes 205 inside the nursing plate 204, so that the long-term and slow-release effect of the drug release is achieved, and the nursing and recovery of the wound are promoted.
[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.
Claims
1. A bone filling prosthesis comprising a scaffold (1), characterized in that: The inner wall of the support (1) is fixedly connected with mounting plates (3) on the upper and lower sides, the top wall of the mounting plate (3) at the bottom is fixedly connected with a support column (4), the top wall of the mounting plate (3) at the top is fixedly connected with a connecting plate (5), the front and rear sides of the connecting plate (5) are rotatably connected with two rotating columns (6), the outer wall of the rotating column (6) is rotatably connected with a connecting shell (7), the front and rear sides of the connecting shell (7) on the left are rotatably connected with locking plates (8), the front and rear sides of the connecting shell (7) on the right are provided with locking grooves (9), the right sides of the two locking plates (8) are respectively engaged with the corresponding locking grooves (9), the top wall of the connecting plate (5) is fixedly connected with a clamping column (10) in the middle, the support column (4) is provided with a nursing mechanism (2), and the nursing mechanism (2) is used to improve the postoperative nursing effect.
2. A bone filling prosthesis according to claim 1, characterized in that: The nursing mechanism (2) comprises a connecting arc plate (201), the inner wall of the connecting arc plate (201) is fixedly connected in the middle of the support column (4), a plurality of mounting grooves (202) are equidistantly formed on the outer wall of the connecting arc plate (201), the inner walls of the mounting grooves (202) are fixedly connected with nursing plates (204), the outer wall of the support (1) is equidistantly provided with a plurality of drug-loaded plates (203), the inner part of the drug-loaded plate (203) is fixedly connected with a plurality of biodegradable microspheres (206), and the side of the nursing plate (204) is provided with a plurality of release holes (205).
3. A bone filling prosthesis according to claim 2, characterized in that: The plurality of release holes (205) are equidistantly and symmetrically arranged, and the outer walls of the plurality of biodegradable microspheres (206) are respectively engaged with the inner walls of the corresponding release holes (205).
4. A bone-filling prosthesis according to claim 1, wherein: The left front and rear ends of the connecting shell (7) on the right are fixedly connected with connecting columns (12), the right front and rear ends of the connecting shell (7) on the left are provided with connecting grooves (13), and the left sides of the two connecting columns (12) are respectively engaged with the corresponding connecting grooves (13).
5. A bone-filling prosthesis according to claim 1, wherein: The top wall of the connecting plate (5) is fixedly connected with two limiting columns (11) on the left and right sides, and the plurality of limiting columns (11) are symmetrically designed.
6. A bone-filling prosthesis according to claim 1, wherein: The outer wall top end of the support column (4) is fixedly connected with a gasket top ring (14), and the outer wall bottom end of the support column (4) is fixedly connected with a gasket bottom ring (16).
7. A bone filling prosthesis according to claim 1, characterized in that: The adjacent sides of the two connecting shells (7) are fixedly connected with soft rubber pads (15), and the adjacent sides of the two soft rubber pads (15) are provided with an arc.
8. A bone-filling prosthesis according to claim 1, wherein: The upper and lower ends of the support (1) are designed to be smooth, and the outer walls of the two connecting shells (7) are provided with inclined surfaces.