Lower opener for endoscope

Abstract

The invention relates to the field of medical devices and discloses a lower opener for an endoscope. According to the lower opener, two opener heads are symmetrical to each other and are connected and matched with each other, and can be separated and drawn; when the two opener heads are drawn, a calabash shape with a circular blunt pointed end can be formed; during operation, the circular blunt pointed end punctures a basilar membrane, the edge of crevasse is fixed on the middle concave parts of the calabash-shaped opener heads, and the opener heads are separated to open and expand the crevasse to meet the operation requirements; and the puncturing and opening functions can be realized by using one machine; and the lower opener is simple in structural design and ensures that operation is easy and convenient to implement, and the operation effect is safe and effective. The inner sides of handheld handles are provided with tooth plates which are provided with multi-tooth lock catches matched with each other; and by fixing the positions of the handheld handles, the separating and drawing width of the opener heads can be controlled, the size of the opened mouth can be controlled conveniently, and the operation is convenient to implement. The lower opener is made of metal materials, so that the lower opener can be disinfected and sterilized at high temperature, cannot be damaged easily, can be used repeatedly, and reduces operation cost.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an endoscopic spreader. Background technique [0002] In recent years, with the rapid development of neuroimaging, neuroendoscopic manufacturing technology, microsurgical instruments, and stereotaxic neuronavigation systems, the surgical method of neuroendoscope-assisted third ventriculostomy has become increasingly mature, and the indications have been continuously expanded. It plays an increasingly important role in the field of surgical treatment of non-communicating hydrocephalus. Third ventriculostomy is mainly suitable for non-communicating hydrocephalus, and it can also be used for patients with non-communicating hydrocephalus with shunt failure or shunt infection and adhesion. For patients with shunt failure due to multiple shunt blockages That said, third ventriculostomy is undoubtedly a good alternative therapy. [0003] In order to improve the safety and effectiven...

AI Technical Summary

Problems solved by technology

Sharp ostomy techniques such as probes are easy and effective, but improper operation can easily cause damage to blood vessels and brain tissue. In order to avoid damage to the basilar artery during the operation, balloon dilatation catheters are usually used for perforated ostomy in the prior art

[0004] However, the inventors of the present invention have found that using a balloon dilation catheter for perforation fistula is often difficult to break through the basement membrane because the texture of the catheter is soft and the head end is blunt. At the same time, due to the special material of the balloon, the price is relatively expensive and it is easy to damage , the reuse rate is very low, which brings great inconvenience to clinical work, especially for patients with very tough or elastic basement membrane of the third ventricle, repeated operations also increase the risk of surgery

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