One-way valve opening device as well as indwelling needle and bronchial stent comprising same

A technology of opening device and indwelling needle, applied in the field of medical devices

Pending Publication Date: 2021-05-18
邓三明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned problems currently existing in indwelling needles and endobronchial stent-grafts, how to design a one-way valve device for specific substances, allowing specific substances to move in one direction, and allowing other substances to move in two directions, this problem has not yet been resolved

Method used

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  • One-way valve opening device as well as indwelling needle and bronchial stent comprising same
  • One-way valve opening device as well as indwelling needle and bronchial stent comprising same
  • One-way valve opening device as well as indwelling needle and bronchial stent comprising same

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Embodiment 1

[0053] Such as figure 1 As shown, the one-way valve opening device of the present invention comprises a gasket 4 and a plurality of thin fibers 3, one end of the thin fibers 3 is fixed and is called a fixed end 5, and the other end 6 is free, and the thin fibers 3 have elasticity, and when the free ends 6 When the pressure was not lower than the fixed end 5, the free end 6 of the thin fiber remained in an aggregated state (such as figure 1 shown), when the pressure of the free end 6 was lower than that of the fixed end 5, the free end 6 of the fine fiber spread out and was in an open state (as figure 1 shown).

[0054] The one-way valve opening device of the present invention is put into the indwelling needle as a component and used, such as figure 2 Shown in A, gasket 4 is fixed on the opening of indwelling needle needle seat 9 in indwelling needle soft overtube 8. The puncture steel needle 7 enters the soft outer sleeve 8 by the free end 6 (as figure 2 Shown in A-B), a...

Embodiment 2

[0067] The one-way valve opening device of the present invention can be used as a medical device and put into the bronchi of the diseased area for use in diseases such as bullae, emphysema and chronic obstructive pulmonary disease. The structure of the one-way valve opening device is similar to that of Embodiment 1, and the cone formed by the thin fibers 3 faces the direction close to the main bronchus (such as Figure 4 shown).

[0068] The inventive device described above can be fixed on the bracket material so as to be better fixed on the wall of the bronchus 16 .

[0069] The present invention replaces the existing endobronchial endobronchial stent, and the operation steps of implantation are the same as the existing minimally invasive interventional operation. The specific method is as follows.

[0070] ①Under the guidance of techniques such as bronchoscopy, angiography, or chest CT, find the bronchial junction in the lesion area and measure its diameter.

[0071] ② Se...

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Abstract

The invention provides a one-way valve opening device. The device comprises a gasket and a plurality of elastic fine fibers, wherein one ends of the multiple fine fibers are fixed to the gasket, and the other ends of the fine fibers are free; the pressure of the free ends is not lower than that of the fixed ends, the free tail ends of the multiple fine fibers are kept in a gathering state, and the multiple fine fibers are integrally in a cone shape; and when the pressure of the free ends is lower than that of the fixed ends, the free tail ends of the multiple fine fibers are dispersed and are in an open state. The device is arranged in the indwelling needle, and thrombus generated in the using process of the indwelling needle can be stopped in a needle seat, so that the thrombus is prevented from entering the human body, and the serious consequence caused by the fact that the thrombus enters the human body is reduced. The device is placed in the bronchus of a lesion area of the human body, the movement direction of sputum can be limited, the sputum can be discharged out of the body, the access of gas and liquid is not limited, the air inflow of the lung in the lesion area can be directly reduced, the ventilation/perfusion blood flow proportion of the normal lung can be indirectly improved, and meanwhile the follow-up treatment such as alveolar lavage is not affected.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and more specifically relates to a one-way valve opening device, an indwelling needle and a bronchial stent including the same. Background technique [0002] Indwelling needles are routine equipment used in medical clinics. The soft outer cannula is placed in the human blood vessel by puncture and can be kept in the body for several days, which has been widely used clinically. A common adverse reaction during the use of indwelling needles is catheter blockage. The main cause of indwelling needle blockage is the thrombus formed in the soft overtube and needle hub. For avoiding above-mentioned problem at present, mainly adopt following method: 1, use positive pressure joint, produce certain positive pressure when transfusion, avoid blood reflux. However, it is impossible to completely prevent the blood from flowing back into the trocar when infusion is not performed, forming a thrombus a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158A61F2/82
CPCA61M5/158A61F2/82A61M2005/1586
Inventor 邓三明
Owner 邓三明
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