Sleeve type artificial stirrup bone and production technique thereof

A technology for manufacturing technology and stapes, applied in the field of sleeve-shaped artificial stapes and its manufacturing technology

Inactive Publication Date: 2008-12-17
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide an anvil-stape joint with reasonable structure and suitable for the defect that the anvil-stape joint of the currently used hook-type replacement body can only reciprocate

Method used

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  • Sleeve type artificial stirrup bone and production technique thereof
  • Sleeve type artificial stirrup bone and production technique thereof
  • Sleeve type artificial stirrup bone and production technique thereof

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Embodiment Construction

[0024] A preferred embodiment of the present invention is described in detail as follows in conjunction with accompanying drawing:

[0025] see figure 1 , figure 2 , Figure 3, Figure 4, Figure 5, Figure 6 and Figure 7 . This set of replacement artificial stapes includes an artificial stapes body 7, the artificial stapes body 7 is a sleeve head 2 configured with the bean-shaped process at the end of the long foot 8 of the incus and a hole on the base plate 11 of the stapes. The mated cylinders 3 are fixedly connected to form a whole. There is a semicircular bracket 6 that is rotationally matched with the long leg 8 of the incus on the sleeve 2 , and the two ends of a metal wire 1 for pressing the long leg 8 of the incus are connected with the sleeve 2 .

[0026] The above-mentioned sleeve head 2 is a cylinder with a semicircular bracket 6, and a side plane 4 parallel to the axis is arranged on the cylinder wall, and a perforation 5 is arranged on the cylindrical wall op...

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Abstract

The invention relates to a sleeve-type artificial stapes and a manufacturing technique thereof. The sleeve-type artificial stapes comprises an artificial stapes body which is formed by fixedly connecting a lenticular sleeve head provided with a tip of a long limb of incus and a cylinder which can be inserted in and matched with a pore creating on an identical stapes master. The sleeve head is provided with a semicircular handle groove which is rotatablely matched with the long limb of incus and two ends of a metal wire used for pressing the long limb of incus are connected with the sleeve head. The sleeve-type artificial stapes is made of titanium alloy; the manufacturing process flow thereof is as follows: ingredients blending-injection forming-adhesive desorption (degreasing for short)-sintering. The joint of the artificial stapes provided by the invention can turn along any direction, and the novel sleeve-type artificial stapes is completely in line with the connecting, conducting and moving discipline of the original incus and stapes of the normal human body and has important scientific and technological valve and promising application prospect as well as obvious economic benefits.

Description

technical field [0001] The invention relates to the fields of medical biomaterials and biomechanics, in particular to a sleeve-shaped artificial stapes and a manufacturing process thereof for ear surgery. Background technique [0002] Conductive deafness is mostly caused by lesions of the tympanic membrane or the ossicular chain. Theoretically speaking, the patient's hearing can be restored by repairing the tympanic membrane and rebuilding the ossicular chain. For patients with congenital ossicle deformity and tympanic sclerosis, etc., the patient's hearing is restored clinically by replacing the artificial stapes. Although a certain effect has been achieved, the ideal hearing cannot be achieved. The structure and sound transmission mechanism are very complex, and the hearing conduction structure reconstructed through surgery is difficult to reach the physiological state. Moreover, the artificial stapes used for reconstruction of the ossicular chain differ in their materials...

Claims

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Application Information

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IPC IPC(8): A61F2/18A61F2/28A61F11/00A61L27/06
Inventor 姚文娟黄新生李武傅祥卿李晓青梁斌
Owner SHANGHAI UNIV
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