CN215739364U

CN215739364U - Porous inner core 3D prints bone nail

Info

Publication number: CN215739364U
Application number: CN202121991040.9U
Authority: CN
Inventors: 寇万福; 蒋晓丰
Original assignee: Changzhou Geasure Medical Devices Co ltd
Current assignee: Changzhou Geasure Medical Devices Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-02-08
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a porous inner core 3D printing bone nail which comprises a bone nail body, a bone nail cap and a bone nail tip, wherein the bone nail cap and the bone nail tip are respectively arranged at two ends of the bone nail body, the bone nail body adopts a porous structure, threads are arranged on the outer peripheral side of the bone nail body, the threads, the bone nail cap and the bone nail tip are all of a solid structure, and a polygonal sunk groove is formed in the bone nail cap. Its purpose is in order to provide a porous inner core 3D prints bone nail suitable for osteoporosis patient, and this bone nail is fixed firm after on the skeleton of twist patient, is difficult to take place to become flexible to be favorable to patient's rehabilitation.

Description

Porous inner core 3D prints bone nail

Technical Field

The utility model relates to the field of medical instruments, in particular to a bone nail.

Background

In bone surgery, bone screws are commonly used to provide fixation during surgery. However, after the screw is screwed into the bone of the patient, the screw is liable to loosen over time, especially for osteoporotic patients, which is not conducive to the rehabilitation of the patient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a porous inner core 3D printing bone nail which is firmly fixed after being screwed into a bone of a patient, is not easy to loosen, is particularly suitable for osteoporosis patients and is beneficial to rehabilitation of the patient.

The porous inner core 3D printing bone nail comprises a bone nail body, a bone nail cap and bone nail tips, wherein the bone nail cap and the bone nail tips are respectively arranged at two ends of the bone nail body, the bone nail body is of a porous structure, threads are arranged on the outer peripheral side of the bone nail body, the threads, the bone nail cap and the bone nail tips are all of a solid structure, and a polygonal sunk groove is formed in the bone nail cap.

The porous inner core 3D printing bone nail comprises a bone nail body and a bone nail head, wherein the upper end of the upper half is provided with the bone nail head, the lower end of the lower half is provided with the bone nail tip, and the outer peripheral side of the lower half is provided with threads.

The porous inner core 3D printing bone nail provided by the utility model is characterized in that through holes are axially arranged in the bone nail body, the through holes extend upwards to the bone nail cap and are communicated with the polygonal sunken grooves, and the through holes extend downwards to the bone nail tip and penetrate through the bone nail tip.

The porous inner core 3D printing bone nail comprises a bone nail body and is characterized in that the bone nail body comprises an upper half part and a lower half part, a bone nail cap is arranged at the upper end of the upper half part, a bone nail tip is arranged at the lower end of the lower half part, and threads are arranged on the outer peripheral sides of the upper half part and the lower half part.

The porous inner core 3D printing bone nail provided by the utility model is characterized in that the polygonal sunk groove is a regular hexagonal sunk groove.

According to the porous inner core 3D printing bone nail, the two opposite side surfaces of the regular hexagonal sunk groove are respectively provided with the clamping groove.

Compared with the prior art, the porous inner core 3D printing bone nail is characterized in that the bone nail body adopts a porous structure, the threads, the bone nail cap and the bone nail tip all adopt solid structures, after the bone nail is screwed into a bone of a patient, the porous structure can enable bone to grow in, and the porous structure is particularly significant for the patient with osteoporosis, can enable the bone nail to be fixed more stably and is not easy to loosen, so that the porous inner core 3D printing bone nail is beneficial to rehabilitation treatment of the patient. In addition, the utility model adopts 3D printing, and is convenient to manufacture.

The utility model will be further explained with reference to the drawings.

Drawings

FIG. 1 is a front view of a first embodiment of a 3D printed bone nail with a porous inner core according to the present invention;

FIG. 2 is a top view of a first embodiment of a 3D printed bone nail with a porous inner core according to the present invention;

FIG. 3 is a front cross-sectional view of a first embodiment of a 3D printed bone nail with a porous inner core in accordance with the present invention;

FIG. 4 is a front view of a second embodiment of the porous inner core 3D printed bone nail of the present invention;

fig. 5 is a front cross-sectional view of a second embodiment of the porous inner core 3D printed bone nail of the present invention.

Detailed Description

Example one

As shown in fig. 1 and combined with fig. 2 and 3, the porous inner core 3D printed bone nail of the present invention comprises a bone nail body 1, a bone nail cap 2 and a bone nail tip 3, wherein the bone nail cap 2 and the bone nail tip 3 are respectively fixed at two ends of the bone nail body 1, the bone nail body 1 adopts a porous structure, the outer peripheral side of the bone nail body 1 is provided with a thread 103, the bone nail cap 2 and the bone nail tip 3 are all solid structures, and the bone nail cap 2 is provided with a polygonal counter sink 201.

The thread 103 adopts a solid structure, the bone screw cap 2 and the bone screw tip 3 also adopt a solid structure, the strength of the whole bone screw is enhanced, and the bone screw can be conveniently screwed into the bone of a patient. The polygonal counter sink 201 serves to facilitate the placement of a rotation tool in the polygonal counter sink 201, thereby rotating the bone screw. As shown in fig. 2, the polygonal sinking groove 201 is a regular hexagonal sinking groove, and two opposite side surfaces of the regular hexagonal sinking groove are respectively provided with a clamping groove 202. In order to enhance the force of the rotary tool for rotating the bone nail, the rotary tool is provided with a fixture block which is matched with the clamping groove 202, and when the rotary tool is placed in the regular hexagonal sunk groove, the fixture block is positioned in the clamping groove 202, so that the force of the rotary tool for rotating the bone nail is enhanced.

As shown in fig. 1, the porous inner core 3D printed bone nail of the present invention, wherein the bone nail body 1 comprises an upper half 101 and a lower half 102, the upper end of the upper half 101 is provided with a bone nail cap 2, the lower end of the lower half 102 is provided with a bone nail tip 3, and the outer peripheral side of the lower half 102 is provided with a thread 103. After the bone screw is screwed into the bone of a patient, bone can grow into the porous structure of the upper half part 101 of the bone screw body 1 and also into the porous structure of the bone screw body 1 between two adjacent threads 103.

As shown in fig. 3, the bone nail with the porous inner core 3D printed in the utility model is characterized in that the bone nail body 1 is provided with axially arranged through holes 4, the through holes 4 extend upwards to the bone nail cap 2 and are communicated with the polygonal sunken grooves 201, and the through holes 4 extend downwards to the bone nail tip 3 and penetrate through the bone nail tip 3. The through hole 4 is used for passing through a guide pin.

The bone nail body 1 adopts a porous structure, the threads 103 adopt a solid structure, the porous structure can enable bone to grow in after the bone nail is screwed into the bone of a patient, and the bone nail is particularly meaningful for osteoporosis patients, can enable the bone nail to be fixed more stably and is not easy to loosen, thereby being beneficial to the rehabilitation treatment of the patient. In addition, the utility model adopts 3D printing, and is convenient to manufacture.

Example two

As shown in fig. 4 and shown in fig. 5, the present embodiment differs from the first embodiment in that: the bone nail body 1 comprises an upper half part and a lower half part, a bone nail cap 2 is arranged at the upper end of the upper half part, a bone nail tip 3 is arranged at the lower end of the lower half part, and threads 103 are arranged on the peripheral sides of the upper half part and the lower half part. Moreover, the bone nail body 1 is a solid structure, and an axial through hole is not arranged in the bone nail body.

It should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims

1. The utility model provides a porous inner core 3D prints bone nail which characterized in that: including bone nail body, bone nail cap and bone nail point, the both ends of bone nail body are located respectively to bone nail cap and bone nail point, the bone nail body adopts porous structure, be equipped with the screw thread on the periphery side of bone nail body, screw thread, bone nail cap and bone nail point are solid construction, be equipped with the polygon heavy groove on the bone nail cap.

2. The porous inner core 3D printed bone nail of claim 1, wherein: the bone nail body comprises an upper half part and a lower half part, a bone nail cap is arranged at the upper end of the upper half part, a bone nail tip is arranged at the lower end of the lower half part, and threads are arranged on the outer peripheral side of the lower half part.

3. The porous inner core 3D printed bone nail of claim 2, wherein: the bone nail is characterized in that a through hole is axially arranged in the bone nail body, the through hole upwards extends to the bone nail cap and is communicated with the polygonal sunk groove, and the through hole downwards extends to the bone nail tip and penetrates through the bone nail tip.

4. The porous inner core 3D printed bone nail of claim 1, wherein: the bone nail body comprises an upper half part and a lower half part, a bone nail cap is arranged at the upper end of the upper half part, a bone nail tip is arranged at the lower end of the lower half part, and threads are arranged on the peripheral sides of the upper half part and the lower half part.

5. The porous inner core 3D printed bone nail according to any one of claims 1-4, wherein: the polygonal sinking groove is a regular hexagon sinking groove.

6. The porous inner core 3D printed bone nail of claim 5, wherein: two opposite side surfaces of the regular hexagon sinking groove are respectively provided with a clamping groove.