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Variable diameter cerebral fistula neuroendoscopy working channel

A working channel, brain technology, applied in endoscopy, medical science, diagnosis, etc., can solve problems such as high surgical risk and increased intracranial pressure, avoid unnecessary damage, avoid rapid increase, and reduce risk Effect

Pending Publication Date: 2019-01-18
FOURTH MILITARY MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a variable-diameter brain ostomy neuroendoscopic working channel to solve the problem that the neuroendoscopic working channel in the prior art is likely to cause a rapid increase in intracranial pressure. Technical problems with high surgical risk

Method used

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  • Variable diameter cerebral fistula neuroendoscopy working channel
  • Variable diameter cerebral fistula neuroendoscopy working channel
  • Variable diameter cerebral fistula neuroendoscopy working channel

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Comply with the above technical solutions, such as Figure 1 to Figure 9 As shown, this embodiment provides a variable-diameter brain ostomy neuroendoscopic working channel, which includes an elastic outer tube 1 with both ends open and a support inner tube 2 with both ends open, and the support inner tube 2 is detachable In the elastic outer tube 1, the top of the supporting inner tube 2 stretches out of the top of the elastic outer tube 1, and the bottom of the supporting inner tube 2 does not extend out of the bottom of the elastic outer tube 1;

[0037] The supporting inner tube 2 is a series of supporting inner tubes 2 with different outer diameters;

[0038] The elastic outer tube 1 includes a plurality of support rods 3 uniformly arranged axially along the tube wall, and two adjacent support rods 3 are connected by an elastic film 4 to form an elastic outer tube 1;

[0039] The support rod 3 on the inner side of the elastic outer tube 1 is provided with a limit ...

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Abstract

The invention provides a variable diameter cerebral fistula neuroendoscopy working channel. The channel comprises an elastic outer tube open at both ends and a supporting inner tube open at both ends,wherein the supporting inner tube is detachably installed into the elastic outer tube, the top end of the supporting inner tube protrudes out of the top end of the elastic outer tube, and the bottomend of the supporting inner tube does not protrude out of the bottom end of the elastic outer tube; The supporting inner tube is a series of supporting inner tubes with different outer diameters, andthe elastic outer tube comprises a plurality of supporting rods uniformly arranged along the axial direction of the tube wall, and two adjacent supporting rods are connected with each other through anelastic membrane to form an elastic outer tube; The supporting rod on the inner side of the elastic outer tube is provided with a finite protrusion near the bottom end, and the bottom end of the supporting inner tube is pressed against the limiting protrusion. The working channel can gradually increase the outer diameter of the working channel, so that the intracranial pressure can be kept stable, the rapid increase of the intracranial pressure caused by the insertion of the working channel is avoided, and the risk of the operation process is small.

Description

technical field [0001] The invention belongs to the field of medical devices and relates to a neuroendoscope, in particular to a neuroendoscope working channel. Background technique [0002] At present, neurosurgery has developed into the minimally invasive era, and neuroendoscopy is one of the minimally invasive techniques. If the lesion is deep and located within the brain parenchyma, other good brain tissues are often damaged when the neuroendoscope is inserted. The patient causes secondary harm. The prior art discloses a cored nerve endoscope working channel, which includes a plastic channel tube, one end of the plastic channel tube is provided with a hemispherical rubber stopper, the maximum cross-sectional outer diameter of the rubber stopper is approximately equal to the outer diameter of the plastic channel tube, and the rubber stopper The back of the plug is equipped with a drawstring or pull rod. When using this solution, insert the end of the hemispherical rubbe...

Claims

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Application Information

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IPC IPC(8): A61B1/012
CPCA61B1/012Y02A50/30
Inventor 胡世颉
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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