3D (three-dimensional) printing degradable trachea outer stent for treating tracheostenosis and manufacturing method thereof

A 3D printing, tracheal stenosis technology, applied in stents, medical science, prosthesis, etc., can solve the problem that the endotracheal stent cannot accurately meet the individual needs of the stenotic trachea, the inner stent cannot guarantee the treatment effect well, and the treatment effect of the inner stent limited and other problems, to achieve the effect of wide application position, prevention of oppression and damage, convenient and safe placement
CN106344231AInactive Publication Date: 2017-01-25FOURTH MILITARY MEDICAL UNIVERSITY
9 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FOURTH MILITARY MEDICAL UNIVERSITY
Publication Date
2017-01-25
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a 3D (three-dimensional) printing degradable trachea outer stent for treating tracheostenosis and a manufacturing method thereof. The 3D printing degradable trachea outer stent comprises an outer stent main body and a bellmouth formed in the end part of the outer stent main body, wherein the inside of the outer stent main body is a passage used for bronchus narrow position passing; a notch for connecting a passage is formed in the side wall of the outer stent main body in the axial direction; a plurality of annular bulges are formed in the outer stent main body in the peripheral direction; a suture needle hole penetrating through the passage is formed between the adjacent annular bulges; the trachea outer stent is prepared from degradable materials through 3D printing. The trachea outer stent can be used for expanding the narrow trachea; the re-compression of the peripheral tissues can be prevented; in addition, the stent naturally degrades along with the time; the injury of secondary operation is avoided; the novel thought and the effective treatment measure can be provided for tracheobronchial stenosis caused by various reasons.
Need to check novelty before this filing date? Find Prior Art

Description

[0001] 【Technical field】

[0002] The invention relates to an extratracheal stent, in particular to a 3D printed degradable extratracheal stent for treating tracheal stenosis and a manufacturing method thereof.

[0003] 【Background technique】

[0004] Adult / children with tracheobronchial stenosis of any cause are usually treated with tracheoplasty. Tracheoplasty includes end-to-end anastomosis of stenotic segment resection and sliding anastomosis, etc. Postoperative care is difficult and the incidence of complications is high, including tracheomalacia, anastomotic stoma dehiscence, and excessive proliferation of scar tissue at the anastomosis site and narrowing again. The postoperative effect of this kind of tracheoplasty is not ideal. It has been pointed out in the literature that in the case of complex congenital heart disease complicated with tracheobronchial stenosis, compared with simply solving the heart malformation, the postoperative effect of tracheoplasty on the same ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More