CN106983543B

CN106983543B - Reverse folding umbrella type minimally invasive channel expander

Info

Publication number: CN106983543B
Application number: CN201710137409.1A
Authority: CN
Inventors: 许啸; 郭新辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-03-09
Filing date: 2017-03-09
Publication date: 2023-04-28
Anticipated expiration: 2037-03-09
Also published as: CN106983543A

Abstract

The invention belongs to the technical field of medical appliances. The utility model provides a turn over umbrella-type wicresoft passageway expander, includes the guide sleeve, lays four guide ways on the guide sleeve outer wall and sets up the elasticity owner rib in the guide sleeve, the guide sleeve outer end slip cap is equipped with three sets of slip and props the cover, and three sets of slip prop the cover and set up respectively at the both ends and the middle part of elasticity owner rib. The invention has reasonable and compact structural design, and realizes the expansion from the inside by adopting the reverse folding umbrella structure, thereby preventing the damage to peripheral blood vessels, nerves and other important tissues, greatly improving the efficiency and effect of operation implementation and avoiding the occurrence of operation complications. In the operation process, a novel minimally invasive channel expansion concept is adopted, so that the quality of the whole operation is effectively improved.

Description

Reverse folding umbrella type minimally invasive channel expander

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a reverse-folding umbrella type minimally invasive channel expander.

Background

Minimally invasive surgery is increasingly popular, has the characteristics of quick recovery and few complications, relieves the pain of patients, and is also a trend of later orthopedics development.

The current minimally invasive channel is similar to 'Russian Luo Sitao baby', a Kirschner wire is firstly placed into a required position under perspective, and then hollow sleeves with different diameters are expanded step by step until the required size is achieved. However, due to the thickness of the sleeve wall itself, there is still significant tissue such as blood vessels, nerves, etc. located alongside the k-wire.

Disclosure of Invention

Aiming at the problems and the defects, the invention provides the reverse-folding umbrella type minimally invasive channel expander which has reasonable structural design and can realize stable propping so as to create a minimally invasive channel and facilitate the development of surgical treatment.

In order to solve the problems, the adopted technical scheme is as follows:

the utility model provides a turn over umbrella type wicresoft passageway expander, includes the guide sleeve, lays four guide ways on the guide sleeve outer wall and sets up the elasticity owner rib in the guide sleeve, guide sleeve outer end slip cover is equipped with three group's slip and props the cover, and three group's slip props the cover and set up respectively at the both ends and the middle part of elasticity owner rib, slip props the cover and corresponds two interior sleeve pipes about including corresponding two outer tube and front and back, and interior sleeve pipe's both ends match and establish in the outer tube, and two outer tube and two interior sleeve pipes are connected with the elasticity owner rib that corresponds respectively, the both ends inner wall of outer tube is the convergence mouth, be provided with on the outer wall at interior sleeve pipe both ends and tighten up the arch, be provided with the screw thread section at guide sleeve's outer tip, be provided with the top swivel nut on the screw thread section, the upper end cross-section of top swivel nut is the frustum shape.

The groove depth of the upper end part of the guide groove is gradually reduced, and the sliding support sleeve is driven to be outwards supported.

The elastic main ribs are fixedly connected or pivoted with the sliding support sleeve.

Locking grooves are formed in the inner walls of the two ends of the outer sleeve.

The inner sleeve can be removed and the outer sleeve can be retained in the incision for use as a passageway.

By adopting the technical scheme, the beneficial effects are that:

the invention has reasonable and compact structural design, and realizes the expansion from the inside by adopting the reverse folding umbrella structure, thereby preventing the damage to peripheral blood vessels, nerves and other important tissues, greatly improving the efficiency and effect of operation implementation and avoiding the occurrence of operation complications. In the operation process, a novel minimally invasive channel expansion concept is adopted, so that the quality of the whole operation is effectively improved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the distraction structure of the present invention.

Fig. 3 is a schematic top view of fig. 2.

Fig. 4 is a schematic view of the connection structure of the outer sleeve and the inner sleeve.

Number in the figure: the novel cable guide sleeve comprises a guide sleeve body 1, a guide groove 2, a main rib 3, an outer sleeve 4, an inner sleeve 5, a tightening protrusion 6, a pushing screw sleeve 7 and a locking groove 8.

Detailed Description

The present invention will be described in further detail with reference to specific examples and drawings, but the present invention is not limited to these examples.

Referring to fig. 1-4, an inverse-folding umbrella-type minimally invasive channel expander comprises a guide sleeve 1, four guide grooves 2 arranged on the outer wall of the guide sleeve 1 and an elastic main rib 3 arranged in the guide grooves 2, wherein three groups of sliding support sleeves are arranged at the outer end part of the guide sleeve 1 and are respectively arranged at the two ends and the middle part of the elastic main rib 3, each sliding support sleeve comprises two outer sleeves 4 corresponding to the left side and the right side and two inner sleeves 5 corresponding to the front side and the rear side, the two ends of each inner sleeve 5 are matched and arranged in the outer sleeves 4, the two outer sleeves 4 and the two inner sleeves 5 are respectively connected with the corresponding elastic main ribs 3, the inner walls of the two ends of each outer sleeve 4 are provided with convergence openings, tightening protrusions 6 are arranged on the outer walls of the two ends of each inner sleeve 5, thread sections are arranged at the outer ends of the guide sleeve 1, screw sleeves 7 are arranged on the thread sections, and the sections of the upper end sections of the pushing screw sleeves are in a frustum shape.

Locking grooves 8 are formed in the inner walls of the two ends of the outer sleeve.

The invention is not limited to the above-described embodiments, and a person skilled in the art may make various modifications thereto, but any equivalent or similar modifications as the invention are intended to be included within the scope of the claims of the present invention.

Claims

1. An invagination umbrella type minimally invasive channel dilator which is characterized in that: the novel elastic main rib comprises a guide sleeve, four guide grooves and elastic main ribs, wherein the four guide grooves are arranged on the outer wall of the guide sleeve, the elastic main ribs are arranged in the guide grooves, three groups of sliding support sleeves are arranged at the outer end parts of the guide sleeve in a sliding mode and are respectively arranged at the two ends and the middle part of the elastic main ribs, each sliding support sleeve comprises two outer sleeves corresponding to the left side and the right side and two inner sleeves corresponding to the front side and the rear side, the two ends of each inner sleeve are matched and arranged in the outer sleeves, the two outer sleeves and the two inner sleeves are respectively connected with the corresponding elastic main ribs, the inner walls of the two ends of each outer sleeve are convergence openings, tightening protrusions are arranged on the outer walls of the two ends of each inner sleeve, thread sections are arranged at the outer ends of the guide sleeve, pushing screw sleeves are arranged on the thread sections, and the sections of the upper end parts of the pushing screw sleeves are frustum-shaped;

the groove depth of the upper end part of the guide groove is gradually reduced, and the sliding support sleeve is driven to be outwards supported;

the elastic main ribs are fixedly connected or pivoted with the sliding support sleeve;