Fixator of bone and cartilage and using method of fixator

A fixator and cartilage technology, applied in the field of medical equipment, can solve the problems of difficult operation, long time for donor cartilage to recover biomechanical properties, wear of surrounding cartilage, etc., to achieve a stable healing environment, shorten the time to recover biomechanical properties, Simple effect of fixing process

Inactive Publication Date: 2019-10-08
熊海阔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, when the cartilage is missing or loses function due to trauma or wear and tear, the cartilage needs to be repaired by transplantation. There are two methods of cartilage transplantation in the existing technology, namely autologous cartilage transplantation and tissue engineering cultured cartilage transplantation; Cartilage mosaic transplantation, the disadvantages of this transplantation method are that it can only deal with small-area defects, and the second is that the cartilage donor area is limited. Now with the development of technology, tissue engineering culture of cartilage has broad prospects. , to replant the cartilage to the defect, which can not only repair a large area of ​​defect, but also solve the defect of insufficient donor
[0004] One is to fix a small amount of sutures around the donor cartilage with absorbable sutures; the disadvantage of this method is that it is difficult to operate, and it is easy to tear the parts that need to be sutured on both sides, and it is not conducive t

Method used

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  • Fixator of bone and cartilage and using method of fixator
  • Fixator of bone and cartilage and using method of fixator
  • Fixator of bone and cartilage and using method of fixator

Examples

Experimental program
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Example Embodiment

[0038] Example 1 A bone and cartilage fixator

[0039] Such as figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 As shown together, the present invention provides a bone and cartilage fixator, including a fixator 1, which is a stent formed by 3D printing of absorbable medical polymer materials. The stent consists of an upper cylinder 101 and a lower cone 102. Composition; The fixator 1 is used to clamp and fix the tissue culture donor 2.

[0040] The cylinder 101 is cylindrical, with a cylindrical cavity 104 inside, the top of the cavity 104 is open, and an annular protrusion 105 is provided at the opening; the cylinder wall of the cylinder 101 is provided with a number of uniformly distributed Hole; the bottom of the cavity 104 is sealed; the bottom of the cavity 104 is provided with a groove 106, the groove 106 is in the shape of a "one", a "cross" or a "meter" shape, the purpose of setting the groove 106 It consists of screwing the holder 1 in cooperation with a screw...

Example Embodiment

[0044] Example 2 A method of using bone and cartilage fixator

[0045] The present invention provides a method for using a bone and cartilage fixator, which includes the following steps:

[0046] Step 1: Obtain the size information of the donor 2 according to the patient's imaging data, 3D print the stent of the donor 2 using absorbable medical polymer materials, and load the matrix material that induces cartilage regeneration into the stent; make the matrix material in a suitable way Create micropores suitable for bone growth; take the patient’s bone marrow stromal stem cells into the matrix for stem cell cartilage induction culture; (1) Only cultivate the cartilage donor: load the stem cells into the donor 2 and induce the culture towards the cartilage 8-9 (2) Only cultivate cancellous bone donors: Load stem cells in donor 2 and induce and culture them towards cartilage for 3 weeks. After implantation, in an environment with abundant human blood supply, the donor Turn to the dir...

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Abstract

The invention discloses a fixator of bone and cartilage and a using method of the fixator. The fixator of the bone and the cartilage is pre-embedded into a receptor bone bed, the fixator is a bracketformed by absorbable medical polymer materials through 3D printing, the bracket is composed of a barrel body on the upper part and a cone on the lower part, and the fixator clamps and fixes donor bonecultured by tissue engineering and the cartilage. According to the fixator of the bone and the cartilage and the using method of the fixator, a tissue engineering donor can be reliably fixed to the receptor bone bed, the fixing processing cannot wear peripheral cartilage, and the fixing processing is extremely simple; the donor is always in close contact with the receptor bone bed, and a stable heal environment is provided; and after the fixator fixes the donor bone to the cartilage, finally no foreign matter exists in a body, and complication cannot occur.

Description

technical field [0001] The invention relates to a bone and cartilage fixer and a method for using the same, belonging to the technical field of medical equipment. Background technique [0002] At present, when the cartilage is missing or loses function due to trauma or wear and tear, the cartilage needs to be repaired by transplantation. There are two methods of cartilage transplantation in the existing technology, namely autologous cartilage transplantation and tissue engineering cultured cartilage transplantation; Cartilage mosaic transplantation, the disadvantages of this transplantation method are that it can only deal with small-area defects, and the second is that the cartilage donor area is limited. Now with the development of technology, tissue engineering culture of cartilage has broad prospects. , to replant the cartilage to the defect, which can not only repair a large area of ​​defect, but also solve the defect of insufficient donors. [0003] In the prior art, ...

Claims

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Application Information

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IPC IPC(8): A61B17/68A61B17/86A61F2/28A61F2/46
CPCA61B17/683A61B17/686A61B17/86A61B17/8605A61B17/866A61B2017/00933A61F2/30749A61F2/30756A61F2/4601A61F2002/30762
Inventor 熊海阔
Owner 熊海阔
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