Special directional bone grafting device for bone defect

Abstract

The utility model discloses a special directional bone grafting device for bone defect, which comprises a capacity handle and a handle, a position of the top of the capacity handle close to the back is fixedly connected with a bone grafting sleeve, the top of the bone grafting sleeve is fixedly connected with a corner head, the top of the handle is fixedly connected with a push rod, the push rod is matched with the inner side of the bone grafting sleeve, and the corner head is fixedly connected with the bottom of the handle. And the top of the push rod is movably clamped with a soft rubber head. According to the bone grafting device, through the arrangement of the corner head and the soft rubber head, when the corner head is used, some specific areas can be conveyed more flexibly, the situation of bone grafting blind areas is avoided, meanwhile, due to the arrangement of the soft rubber head, aggregate in the bone grafting sleeve and the corner head can be fully pushed, the situation of aggregate silting is avoided, and the bone grafting effect is improved. According to the utility model, the accuracy and accuracy of an operation can be improved, the bone healing effect can be improved, the normal reconstruction of bones can be promoted, the aggregate can be fully used, and waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bone grafting funnels and bone grafting devices, in particular to a special directional bone grafting device for bone defects. Background Art

[0002] Bone grafting funnels and bone grafting devices are tools used in orthopedic surgery to promote the healing of fractures or defects. Their function is to deliver bone powder, bone blocks or other bone transplant materials to the surgical area to promote fracture healing and bone defect repair.

[0003] At present, the existing bone grafting funnels and bone grafting devices are mostly straight tubes when used, which means that when the bone grafting device is used for advancement, it can only be advanced along the long axis direction of the bone grafting device, which will cause blind spots in some areas and some areas cannot be reached, resulting in failure to achieve the desired effect. Utility Model Content

[0004] The utility model aims to solve the problem of blind spots in some areas of the prior art and proposes a special directional bone grafting device for bone defects.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A directional bone grafting device specially used for bone defects comprises a capacity handle and a handle, wherein the top of the capacity handle is fixedly connected to a bone grafting sleeve near the back, the top of the bone grafting sleeve is fixedly connected to an angle head, the top of the handle is fixedly connected to a push rod, the push rod is matched with the inner side of the bone grafting sleeve, and the top of the push rod is movably clamped with a soft rubber head.

[0007] Preferably, the corner head is inclined, the inclination angle of the corner head is forty-five degrees, the angle between the corner head and the bone grafting sleeve is one hundred and thirty-five degrees, and the top of the corner head is integrally formed with an inner concave head.

[0008] Preferably, a fixing groove is provided on the outer surface of the push rod near the bottom, a fixing rubber ring is movably sleeved inside the fixing groove, and a clamping groove is provided on the top of the push rod.

[0009] Preferably, the ratio of the inner diameter of the angle head near the top to the inner diameter of the bone graft sleeve is four to five, and the length of the angle head is one centimeter.

[0010] Preferably, a fixing core is fixedly connected to the inner side of the clamping slot near the middle, and the bottom of the soft rubber head is matched with the inner side of the clamping slot.

[0011] Preferably, an adaption groove is provided in the middle of the inner side of the soft rubber head, and the inner side of the adaption groove is adapted to the inner side of the fixed core.

[0012] Preferably, the inner side of the concave head is bent toward the inner center of the corner head to present a concave state.

[0013] Compared with the prior art, the utility model provides a directional bone grafting device for bone defects, which has the following beneficial effects:

[0014] 1. The directional bone grafting device for bone defects is provided with an angle head and a soft rubber head. Since there is a certain angle between the angle head and the bone grafting sleeve, when the angle head is used, it can be more flexibly transported to some specific areas to avoid the situation of bone grafting blind areas. At the same time, the soft rubber head can fully push the bone materials inside the bone grafting sleeve and the angle head to avoid the situation of bone material stagnation, which is beneficial to improving the precision and accuracy of the operation, improving the effect of bone healing, and promoting the normal reconstruction of bones, which is beneficial to the full use of bone materials and avoiding waste.

[0015] 2. The directional bone grafting device for bone defects is provided with an angle head and an inner concave head. When the aggregate is placed in the capacity handle and the bone grafting sleeve, the inner concave of the inner concave head and the reduced diameter of the angle head allow the aggregate to remain inside the bone grafting sleeve and the angle head. The air inside the bone grafting sleeve and the angle head can also be fully discharged, thereby avoiding the adverse effects of residual air inside the bone grafting sleeve and the angle head when the aggregate is filled during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a directional bone grafting device for bone defects proposed by the utility model;

[0017] Figure 2 The utility model is a schematic diagram of a bone grafting sleeve of a directional bone grafting device specially used for bone defects.

[0018] Figure 3 The utility model is a schematic diagram of a fixing core of a directional bone grafting device specially used for bone defects.

[0019] Figure 4 The utility model is a schematic cross-sectional view of a soft rubber head of a directional bone grafting device specially used for bone defects.

[0020] Figure 5 The utility model is a schematic cross-sectional view of a turning head of a directional bone grafting device specially used for bone defects.

[0021] In the figure: 1. Capacity handle; 2. Bone grafting sleeve; 3. Angle head; 4. Handle; 5. Push rod; 6. Soft rubber head; 7. Fixed rubber ring; 8. Fixed groove; 9. Snap-in groove; 10. Fixed core; 11. Adapter groove; 12. Concave head. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Reference Figure 1-5 A directional bone grafting device specially used for bone defects comprises a capacity handle 1 and a handle 4. A bone grafting sleeve 2 is fixedly connected to the top of the capacity handle 1 near the back, and a corner head 3 is fixedly connected to the top of the bone grafting sleeve 2. The corner head 3 is provided with, through the design of this corner, it is beneficial to fully fill some specific positions with aggregate. The ratio of the inner diameter of the corner head 3 near the top to the inner diameter of the bone grafting sleeve 2 is four to five. The length of the corner head 3 is one centimeter. A push rod 5 is fixedly connected to the top of the handle 4. A soft rubber head 6 is movably connected to the top of the push rod 5. The soft rubber head 6 is made of soft material, which is beneficial to fully push the aggregate. An adaptation groove 11 is opened in the middle part of the inner side of the soft rubber head 6, and the inner side of the adaptation groove 11 is adapted to the inner side of the fixed core 10.

[0025] Reference Figure 3-5 The corner head 3 is inclined, the inclination angle of the corner head 3 is forty-five degrees, and the angle between the corner head 3 and the bone grafting sleeve 2 is one hundred and thirty-five degrees. The top of the corner head 3 is integrally formed with an inner concave head 12, and the inner concave head 12 is provided with, adopting this concave method, the aggregate can be effectively stopped to ensure the stability of the equipment. The inner side of the inner concave head 12 is bent toward the inner center of the corner head 3, presenting a concave state, and a fixing groove 8 is provided on the outer surface of the push rod 5 near the bottom, and a fixing rubber ring 7 is movably sleeved on the inner side of the fixing groove 8. Through the combination of the fixing rubber ring 7 and the fixing groove 8, the surfaces of the push rod 5 and the soft rubber head 6 can be coated to protect the outer surfaces of the push rod 5 and the soft rubber head 6, and at the same time, the situation that aggregate remains on the soft rubber head 6 can also be avoided. A clamping groove 9 is provided on the top of the push rod 5, and a fixing core 10 is fixedly connected to the inner side of the clamping groove 9 near the middle, and the bottom of the soft rubber head 6 is adapted to the inner side of the clamping groove 9.

[0026] In the utility model, when in use, a protective film is first fixed on the outer surface of the push rod 5 and the soft rubber head 6 by means of the fixing rubber ring 7 and the fixing groove 8. After the capacity handle 1 is fixed, the push rod 5 and the soft rubber head 6 are pushed into the aggregate through the bone grafting sleeve 2 by holding the handle 4. When in use, the position can be adjusted by rotating the capacity handle 1 to perform fixed filling. The overall material of the soft rubber head 6 is relatively soft, so that the soft rubber head 6 can fully push the aggregate through the connection between the bone grafting sleeve 2 and the corner head 3. After the soft rubber head 6 is damaged during use, it can be conveniently replaced through the fixing core 10 and the adapter groove 11.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A directional bone grafting device for bone defects, comprising a capacity handle (1) and a handle (4), characterized in that: The top of the capacity handle (1) is fixedly connected to a bone grafting sleeve (2) near the back, and the top of the bone grafting sleeve (2) is fixedly connected to a corner head (3), the corner head (3) is inclined, the inclination angle of the corner head (3) is forty-five degrees, and the angle between the corner head (3) and the bone grafting sleeve (2) is one hundred and thirty-five degrees. The top of the corner head (3) is integrally formed with an inner concave head (12), and the top of the handle (4) is fixedly connected to a push rod (5), and the top of the push rod (5) is movably connected with a soft rubber head (6).

2. A directional bone grafting device for bone defects according to claim 1, characterized in that: A fixing groove (8) is provided on the outer surface of the push rod (5) near the bottom, a fixing rubber ring (7) is movably sleeved inside the fixing groove (8), and a clamping groove (9) is provided on the top of the push rod (5).

3. The bone defect-specific directional bone grafting device according to claim 1, characterized in that: The ratio of the inner diameter of the angle head (3) near the top to the inner diameter of the bone graft sleeve (2) is four to five, and the length of the angle head (3) is one centimeter.

4. The bone defect-specific directional bone grafting device according to claim 2, characterized in that: A fixing core (10) is fixedly connected to a position near the middle of the inner side of the clamping groove (9), and the bottom of the soft rubber head (6) is adapted to the inner side of the clamping groove (9).

5. The bone defect-specific directional bone grafting device according to claim 1, characterized in that: An adaption groove (11) is provided in the middle of the inner side of the soft rubber head (6), and the inner side of the adaption groove (11) is adapted to the inner side of the fixed core (10).

6. The directional bone grafting device for bone defects according to claim 1, characterized in that: The inner side of the inner concave head (12) is bent toward the inner center of the corner head (3). It is in a concave state.

Images