Cartilage repair implant, auxiliary surgical tool kit and cartilage repair system

Patent metadata

Field	Value
Publication number	US-10786370-B2
Application number	US-201715856075-A
Country	US
Kind code	B2
Filing date	Dec 28, 2017
Priority date	Dec 28, 2017
Publication date	Sep 29, 2020
Grant date	Sep 29, 2020

Abstract

A cartilage repair implant, an auxiliary surgical tool kit and a cartilage repair system are provided. The cartilage repair implant includes a body and a plurality of pins. The body is a porous structure and is configured to carry cartilage repair material. The pins are fixed to the body for being inserted into a patient's bone. The auxiliary surgical tool kit includes a positioning sleeve and a click tool. The positioning sleeve has a through passage. A first alignment structure is disposed on the sidewall of the through passage. The click tool includes an outer tube and a push rod. A second alignment structure mutually aligned with the first alignment structure is disposed on the outer wall of the outer tube. The outer tube is configured to pass through the through passage. The push rod is slidably disposed in the outer tube. One end of the outer tube has a shaping blade for slicing a to-be-implanted region on an affected area of the patient. In which the shape of the to-be-implanted region is corresponding to the shape of the body.

First claim

What is claimed is:

1. An auxiliary surgical tool kit, comprising:
a positioning sleeve, having a through passage, wherein a alignment groove is disposed on a sidewall of the through passage; and
a click tool, comprising an outer tube and a push rod, wherein a first alignment protrusion is disposed on an outer wall of the outer tube, the outer tube is configured to pass through the through passage of the positioning sleeve, and the first alignment protrusion is mutually aligned with the alignment groove, the push rod is slidably disposed in the outer tube, one end of the outer tube has a shaping blade configured to slice a to-be-implanted region on an affected area of a patient.

2. The auxiliary surgical tool kit as recited in claim 1 , wherein one end of the positioning sleeve has a plurality of sleeve pins configured to be inserted into the affected area of the patient.

3. The auxiliary surgical tool kit as recited in claim 2 , wherein another end of the positioning sleeve has a grip configured to be held by a user.

4. The auxiliary surgical tool kit as recited in claim 1 , wherein the sidewall of the through passage is further provided with a discharge opening.

5. The auxiliary surgical tool kit as recited in claim 1 , wherein the shaping blade has a positioning protrusion.

6. The auxiliary surgical tool kit as recited in claim 1 , further comprising a debridement drill configured to pass through the through passage of the positioning sleeve and remove a cartilage located at the to-be-implanted region of the patient.

7. The auxiliary surgical tool kit as recited in claim 6 , wherein the debridement drill has a stopper, and the stopper has a size greater than a size of the through passage and is configured to limit a debridement depth of the debridement drill.

8. The auxiliary surgical tool kit as recited in claim 1 , further comprising a drilling instrument configured to pass through the through passage of the positioning sleeve and drill a plurality of positioning holes in the cartilage located at the to-be-implanted region of the patient.

9. The auxiliary surgical tool kit as recited in claim 8 , wherein the drilling instrument has a second alignment protrusion, and the second alignment protrusion is mutually aligned with the alignment groove.

10. A cartilage repair system, comprising:
a cartilage repair implant, comprising a body and a plurality of pins, wherein the body is a porous structure and configured to carry a cartilage repair material, one end of each of the pins is fixed to the body, and another end of each of the pins is configured to insert into a bone of a patient;
a positioning sleeve, having a through passage, wherein a alignment groove is disposed on a sidewall of the through passage; and
a click tool, comprising an outer tube and a push rod, wherein a first alignment protrusion is disposed on an outer wall of the outer tube, the outer tube is configured to pass through the through passage of the positioning sleeve, and the first alignment protrusion is mutually aligned with the alignment groove, the push rod is slidably disposed in the outer tube, one end of the outer tube has a shaping blade configured to slice a to-be-implanted region on an affected area of the patient, and a shape of the to-be-implanted region is corresponding to a shape of the body.

11. The cartilage repair system as recited in claim 10 , wherein a porosity of the porous structure ranges from 50% to 90%.

12. The cartilage repair system as recited in claim 10 , wherein a periphery of the body has a positioning protrusion.

13. The cartilage repair system as recited in claim 10 , wherein one end of the positioning sleeve has a plurality of sleeve pins configured to insert into the affected area of the patient.

14. The cartilage repair system as recited in claim 10 , further comprising a debridement drill configured to pass through the through passage of the positioning sleeve and remove a cartilage located at the to-be-implanted region of the patient.

15. The cartilage repair system as recited in claim 10 , further comprising a drilling instrument configured to pass through the through passage of the positioning sleeve and drill a plurality of positioning holes in the cartilage located at the to-be-implanted region of the patient, wherein the positioning holes are corresponding to the pins.

Assignees

• Ind Tech Res Inst
• Univ Nat Taiwan Hospital

Inventors

• Jiang Ching-Chuan
• Jang Fang-Jie
• Yang Ming-Chia
• Lin Yun-Han

Classifications

• A61L27/56 Primary

  Porous materials, {e.g. foams or sponges} · CPC title

• A61L27/26

  Mixtures of macromolecular compounds · CPC title

• A61F2002/30062

  (bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive · CPC title

• A61F2002/30761

  Support means for artificial cartilage, e.g. cartilage defect covering membranes · CPC title

• A61L27/58

  Materials at least partially resorbable by the body · CPC title