Hybrid implant system and manufacturing method therefor

• US 10,525,173 B2
• Filed: 01/18/2018
• Issued: 01/07/2020
• Est. Priority Date: 01/18/2017
• Status: Active Grant

• Current Assignee: Chinese University of Hong Kong
• Original Assignee: Chinese University of Hong Kong
• Inventors: Qin, Ling, Cheng, Yuk Sun, Tang, Ning, Chau, Wing Ho
• Primary Examiner(s): Philogene, Pedro
• Assistant Examiner(s): Comstock, David C
• Application Number:
  US15/874,532
• Publication Number:
  US 20180207327A1
• Time in Patent Office: 719 Days
• Field of Search: 606 62, 606280, 606 70, 606 71, 606298, 606 76, 606 77
• CPC Class Codes: A61B 17/7061 for stabilising vertebrae or discs by improving the condition of their tissues, e.g. using implanted medication or fluid exchange intraosseous injection devices A61B17/3472
• CPC Class Codes: A61B 17/72 Intramedullary pins, nails or other devices A61B17/744 takes precedence
• CPC Class Codes: A61B 17/7233 with special means of locking the nail to the bone
• CPC Class Codes: A61B 17/7283 with special cross-section of the nail
• CPC Class Codes: A61B 17/80 Cortical plates , i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/00893 pharmaceutically effective
• CPC Class Codes: A61L 2430/02 for reconstruction of bones; weight-bearing implants
• CPC Class Codes: A61L 31/022 Metals or alloys
• CPC Class Codes: A61L 31/148 Materials at least partially resorbable by the body

Abstract

The present disclosure discloses a hybrid implant system for fixing and repairing orthopedic fracture and a manufacturing method therefor. The hybrid implant system comprises an implant body having holes on both ends and a locking part configured for attaching the implant body to a broken bone through the holes. The hybrid implant system further comprises a healing assembly made from a material promoting healing of the bone. The implant body has at least one window on a side, the at least one window is aligned with a broken location of the bone, and the healing assembly is inserted into the window in a self-locking manner towards an interior of the implant body.

Claims

1. A hybrid implant system for fixing and repairing orthopedic fracture, comprising:

an implant body, having holes on both ends; and

a locking part, configured for attaching the implant body to a broken bone through the holes;

a healing assembly made from a material promoting healing of the bone, the implant body having at least one window on a side, the at least one window aligned with a broken location of the bone, and the healing assembly inserted into the window in a self-locking manner towards an interior of the implant body, wherein the healing assembly has a resilient groove, the healing assembly is inserted into the window towards the interior of the implant body, and the healing assembly is snapped into the window by compressing the resilient groove.

2. The hybrid implant system according to claim 1, wherein the healing assembly is made from biodegradable magnesium or magnesium alloys.

3. The hybrid implant system according to claim 1, wherein the window comprises a first section and a second section on the side of the body in a direction from an outside to the inside, the first section having a diameter larger than a diameter of the second section;

the healing assembly comprises;

a first holding section having a shape corresponding to the first section; and

a second holding section having a shape corresponding to the second section, the resilient groove being disposed in the second holding section.

4. The hybrid implant system according to claim 1, wherein the healing assembly gradually degrades during implantation.

5. The hybrid implant system according to claim 1, wherein the implant body is used for insertion into the broken bone.

6. The hybrid implant system according to claim 5, wherein the implant body is a hollow rod with a hollow cavity, and the healing assembly falls into the hollow cavity of the hollow rod only after falling off due to degradation.

7. The hybrid implant system according to claim 1, wherein the implant body is attached to an outer side of the broken bone.

8. The hybrid implant system according to claim 7, wherein the implant body has a plate shape.

9. A method for manufacturing a hybrid implant system, the method comprising:

forming holes on both ends of an implant body to attach the implant body to a broken bone through the holes;

forming at least one window on a side of the implant body;

manufacturing a healing assembly body with a material promoting healing of the bone; and

forming a self-locking part in the healing assembly body,

wherein, at least one window is aligned with a broken location of the bone, and the healing assembly is inserted into the window in a self-locking manner through the self-locking part, wherein the healing assembly has a resilient groove, the healing assembly is inserted into the window towards the interior of the implant body, and the healing assembly is snapped into the window by compressing the resilient groove.

10. The method for manufacturing a hybrid implant system according to claim 9, wherein the healing assembly is made from biodegradable magnesium or magnesium alloys.

11. The method for manufacturing a hybrid implant system according to claim 9, wherein forming at least one window on a side of the implant body comprises:

allowing the window to form a first section and a second section on the side of the body in a direction from an outside to the inside, the first section having a inner diameter larger than a diameter of the second section;

the healing assembly body manufactured with the material promoting healing of the bone comprising;

a first holding section having a shape corresponding to the first section; and

a second holding section having a shape corresponding to the second section,

the resilient groove being disposed in the second holding section.

12. The method for manufacturing a hybrid implant system according to claim 9, wherein the healing assembly gradually degrades during implantation.

13. The method for manufacturing a hybrid implant system according to claim 9, wherein the implant body is used for insertion into the broken bone.

14. The method for manufacturing a hybrid implant system according to claim 13, wherein the implant body is a hollow rod with a hollow cavity, and the healing assembly falls into the hollow rod only after falling off due to degradation.

15. The method for manufacturing a hybrid implant system according to claim 9, wherein the implant body is attached to an outer side of the broken bone.

16. The method for manufacturing a hybrid implant system according to claim 15, wherein the implant body has a plate shape.