CN103892946A

CN103892946A - Temporary esophageal stent extractor

Info

Publication number: CN103892946A
Application number: CN201410135456.9A
Authority: CN
Inventors: 赵中伟; 纪建松; 羊丽丽
Original assignee: Individual
Current assignee: Lishui Central Hospital
Priority date: 2014-04-04
Filing date: 2014-04-04
Publication date: 2014-07-02
Anticipated expiration: 2034-04-04
Also published as: CN103892946B

Abstract

The invention relates to an extractor, in particular to a temporary esophageal stent extractor which comprises a guide head, an inner cannula, an outer cannula and a handle. An inner core is arranged in the inner cannula and is of a hollow structure, and the outer cannula is arranged on the outer side of the inner cannula and is connected onto the handle. The temporary esophageal stent extractor has the advantages that the integral cannulas can be pushed into the esophagus of a patient by a push rod, injury to the esophagus of the patient can be reduced under the guide effects of a withdrawing line and the guide head, the guide head can reach a level of the upper end of a temporary esophageal stent under a fluoroscopic monitoring effect, the outer cannula is withdrawn, stent claws are opened, the inner core is withdrawn, the temporary esophageal stent withdrawing line is pulled, the temporary esophageal stent is contracted by the aid of the stent claws and is completely withdrawn into the inner cannula, the outer cannula is pushed, then the stent claws are withdrawn into the outer cannula, the stent extractor can be withdrawn via the esophagus of the patient, and accordingly injury to the esophagus of the patient can be reduced to the greatest extent in stent extraction procedures.

Description

A kind of esophagus falsework extractor

Technical field

The present invention relates to a kind of extractor, relate in particular to a kind of esophagus falsework extractor.

Background technology

To part esophageal stricture patient, it is a kind of conventional Therapeutic Method that esophagus falsework is inserted, and in the time that falsework takes out, at present conventional method is that recovery tube is delivered to support upper end, lifts exhausting line, support is taken out after in support income recovery tube suitable for reading.The method recovery tube head end is tack, in entering the process of esophagus, easily causes recovery tube the iatrogenic injury of bottleneck throat and esophagus, simultaneously in support difficult income recovery tube suitable for reading, the middle and lower part of support is still in swelling state, easily cause esophagus and bottleneck throat damage at the process medium-height trestle dilation of pull-out support, severe patient can cause the serious consequences such as esophageal mucosa membrane injury avulsion, esophageal perforation, massive hemorrhage.Therefore be necessary risk when inventing a kind of extractor of falsework safely and effectively takes out at utmost to reduce falsework.

Summary of the invention

The object of the invention is: the deficiency existing for prior art, provides a kind of effective esophagus falsework extractor of support that takes out.

For realizing the present invention's object, be achieved by the following technical solutions:

A kind of esophagus falsework extractor, comprise seeker, inner sleeve, trocar sheath and hands handle, in described inner sleeve, be provided with inner core, inner core is hollow structure, the outside of inner sleeve is provided with described trocar sheath, trocar sheath is connected on handle, inner sleeve runs through and connects described hands handle, the front end of inner core connects described seeker, the front end of inner sleeve is connected with support pawl, outside, inner core rear end is provided with catch bar, catch bar is connected on described handle, the handle rear end in catch bar outside is provided with the first rotation turn-knob, first rotates turn-knob outer sleeve for connecting and regulates it flexible, the rear end of catch bar is provided with the second rotation turn-knob, second rotates turn-knob connects inner sleeve and regulates it flexible, catch bar is socketed in the outside of described inner core, inner sleeve, handle and catch bar run through mutually, seeker can be from inner sleeve, in handle and catch bar, pass.

As preferably, the front end of described seeker is provided with opening, and seeker is hollow structure, and the exhausting line being connected on esophagus falsework passes in opening, runs through described interior in-core and also stretches out from inner core rear end.

Compared with prior art, the invention has the beneficial effects as follows: promote whole sleeve pipe with catch bar and enter in esophagus, under the guiding of exhausting line and seeker, reduce the damage of esophagus, under fluoroscopic monitoring, seeker arrives esophagus falsework upper end level, rollback trocar sheath, opening support grabs, exit inner core, pull esophagus falsework exhausting line, use support pawl contracted gullet falsework, esophagus falsework is all taken in to inner sleeve, advance trocar sheath that support is grabbed in income trocar sheath, exit support extractor through esophagus, esophagus damage due at utmost reducing in support taking-up process.

Brief description of the drawings

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is the structural representation of embodiment of the present invention support pawl 8;

Fig. 3 is the structural representation that embodiment of the present invention esophagus falsework 9 is inserted in inner sleeve 2.

Detailed description of the invention

1-3 makes a detailed explanation the specific embodiment of the present invention with reference to the accompanying drawings below.

Embodiment

A kind of esophagus falsework extractor, comprise seeker 1, inner sleeve 2, trocar sheath 3 and handle 4, in described inner sleeve 2, be provided with inner core 5, inner core 5 is hollow structure, the outside of inner sleeve 2 is provided with described trocar sheath 3, trocar sheath 3 is connected on handle 4, inner sleeve 2 runs through and connects described handle 4, the front end of inner core 5 connects described seeker 1, the front end of inner sleeve 2 is connected with support pawl 8, inner core 5 outsides, rear end are provided with catch bar 6, catch bar 6 is connected on described handle 4, handle 4 rear ends in catch bar 6 outsides are provided with the first rotation turn-knob 7, first rotates turn-knob 7 outer sleeve for connectings 3 and regulates it flexible, the rear end of catch bar 6 is provided with the second rotation turn-knob 12, second rotates turn-knob 12 connects inner sleeve 2 and regulates it flexible, catch bar 6 is socketed in the outside of described inner core 5, inner sleeve 2, handle 4 and catch bar 6 run through mutually, seeker 1 can be from inner sleeve 2, in handle 4 and catch bar 6, pass.The inside diameter of inner sleeve 2 is greater than the outside diameter of the esophagus falsework 9 of the state of tightening up, and the inside diameter of inner sleeve 2 is less than the outside diameter of esophagus falsework 9 while unclamping; When tension esophagus falsework 9, can be in whole esophagus falsework 9 income inner sleeve 2, the front end of described seeker 1 is provided with opening 11, and seeker 1 is hollow structure, exhausting line 10 on esophagus falsework 9 passes in opening 11, runs through in described inner core 5 and stretches out from inner core 5 rear ends.

In operating process, esophagus falsework 9 carries by esophagus and guides external longer exhausting line 10 into, first exhausting line 10 is penetrated to opening 11, in inner core 5, pass, along exhausting line, extractor is introduced to esophagus, under fluoroscopic monitoring, in the time that extractor arrives esophagus falsework 9 upper end, rotating the first rotation turn-knob 7 allows trocar sheath 3 retreat, the support pawl 8 being drawn in starts to strut, race diameter when support pawl 8 struts is completely less than the race diameter of esophagus falsework 9, can ensure not scratching esophageal, race diameter when support pawl 8 struts completely is simultaneously greater than the diameter of trocar sheath 3, can fold seeker 1 is pulled out together with inner core 5, pull subsequently exhausting line 10, under the gathering of support pawl 8, esophagus falsework 9 reclaims in people's inner sleeve 2, counter-rotation first is rotated turn-knob 7 trocar sheath 3 is advanced, until the complete coated stent pawl 8 of trocar sheath 3, pull catch bar 6, whole extractor pull-out esophagus, the process of taking out like this esophagus falsework 9 from esophagus has farthest reduced the damage to esophagus and bottleneck throat.

Claims

1. an esophagus falsework extractor, it is characterized in that, comprise seeker, inner sleeve, trocar sheath and hands handle, in described inner sleeve, be provided with inner core, inner core is hollow structure, the outside of inner sleeve is provided with described trocar sheath, trocar sheath is connected on handle, inner sleeve runs through and connects described hands handle, the front end of inner core connects described seeker, the front end of inner sleeve is connected with support pawl, outside, inner core rear end is provided with catch bar, catch bar is connected on described handle, the handle rear end in catch bar outside is provided with the first rotation turn-knob, first rotates turn-knob outer sleeve for connecting and regulates it flexible, the rear end of catch bar is provided with the second rotation turn-knob, second rotates turn-knob connects inner sleeve and regulates it flexible, catch bar is socketed in the outside of described inner core, inner sleeve, handle and catch bar run through mutually, seeker can be from inner sleeve, in handle and catch bar, pass.

2. a kind of esophagus falsework extractor according to claim 1, it is characterized in that, the front end of described seeker is provided with opening, seeker is hollow structure, the falsework exhausting line being connected on esophagus falsework passes in opening, runs through described interior in-core and stretches out from inner core rear end.

3. a kind of esophagus falsework extractor according to claim 1, it is characterized in that, it is an annular bell-mouth structure of air that described support pawl struts, and the race diameter of support pawl is less than the race diameter of esophagus falsework, and the race diameter of support pawl is greater than described trocar sheath race diameter.