CN103750928A

CN103750928A - Dual-tight-mouth esophageal stent placement and recovery device

Info

Publication number: CN103750928A
Application number: CN201410019145.6A
Authority: CN
Inventors: 曹莹莹
Original assignee: Individual
Current assignee: Wang Huayang
Priority date: 2014-01-10
Filing date: 2014-01-10
Publication date: 2014-04-30
Anticipated expiration: 2034-01-10
Also published as: CN103750928B

Abstract

The invention provides a dual-tight-mouth esophageal stent placement and recovery device comprising an external sleeve, an internal sleeve, sampling forceps and a dual-tight-mouth esophageal stent. The forceps head of the sampling forceps penetrates in the internal sleeve inserted in the external sleeve. The rear ends of the external sleeve and the internal sleeve are provided with a horn-shaped handle, the horn-shaped handle of the internal sleeve is provided with a slit. The upper and lower ends of the dual-tight-mouth esophageal stent are provided with metal annular mouth tightening lines annularly connected with tensioning lines. The tensioning lines are tensioned upwardly and wraps in the slit of the horn-shaped handle of the internal sleeve so as to wrap the dual-tight-mouth esophageal stent on the front portion of the internal sleeve. The device has the advantages that structure is simple, placement and recovery can both be implemented, a traditional expensive nickel titanium shape memory alloy esophageal stent can be replaced by an ordinary stainless steel dual-tight-mouth esophageal stent, freezing memory is omitted, operation can be facilitated, operation time is short, pain of a patient is low, labor intensity of a doctor is low, the dual-tight-mouth esophageal stent can be reused after recovery, and treatment cost of the patient can be reduced greatly.

Description

A kind of two-restriction mouth Esophageal Stent is laid retracting device

Technical field

The present invention relates to technical field of medical instruments, specifically a kind of two-restriction mouth Esophageal Stent is laid retracting device.

Background technology

If there is canceration in human body esophagus, esophagus can be stopped up, cause patient can not swallow food and hungry and dead, in order to extend patient's life, prior art is by two-restriction mouth Esophageal Stent setting device, at esophagus diseased region, to lay Ultimum Ti two-restriction mouth Esophageal Stent esophagus is strutted, expand the intracavity diameter at pathological changes esophagus position, with instant food, pass through, the operation of laying of this two-restriction mouth Esophageal Stent is implemented under gastroscope helps, but the problem existing is, after Ultimum Ti two-restriction mouth Esophageal Stent is laid, there is a lot of patients' esophageal canceration position again esophagus to be stopped up, cause and swallow food difficulty, through x-ray fluoroscopy, discovery is because of esophageal peristalsis and swallow coarse granule food Ultimum Ti two-restriction mouth Esophageal Stent is pushed away in stomach, the solution of prior art is to use special shearing apparatus under the help of gastroscope, Ultimum Ti two-restriction mouth Esophageal Stent to be sheared broken bit by bit, by biopsy forceps, take out one by one again, and then lay a new Ultimum Ti two-restriction mouth Esophageal Stent, perform the operation very complicated, patient is very painful, operation increases doctor's labor intensity for a long time, also increased patient's medical expense, the solution also not had at present.

Summary of the invention

Technical assignment of the present invention is to solve the deficiencies in the prior art, provides a kind of two-restriction mouth Esophageal Stent to lay retracting device.

Technical scheme of the present invention realizes in the following manner, this one two-restriction mouth Esophageal Stent is laid retracting device, comprise trocar sheath, inner sleeve, sample pickup tongs and two-restriction mouth Esophageal Stent, the jaw head of sample pickup tongs interts among inner sleeve, inner sleeve is inserted among trocar sheath, the rear end of trocar sheath and inner sleeve is provided with horn-like hands handle, on the horn-like handle of inner sleeve, have joint-cutting, the two ends up and down of two-restriction mouth Esophageal Stent are provided with the tight mouthful line of metallization annular, the tight mouthful wire loop of metallization annular is connected to annular elastic threads, annular elastic threads is upwards strained in the joint-cutting on the horn-like handle that is wrapped in inner sleeve, two-restriction mouth Esophageal Stent is coated on to the front portion of inner sleeve,

It is as follows that two-restriction mouth Esophageal Stent is laid operating procedure:

1) two-restriction mouth Esophageal Stent is enclosed within to the end of inner sleeve, the annular elastic threads of first tractive two-restriction mouth Esophageal Stent lower end, allow two-restriction mouth Esophageal Stent shrink the leading section that is rolled in inner sleeve, annular elastic threads is wrapped in the joint-cutting on inner sleeve handle and is strained and fixed, the annular elastic threads of tractive two-restriction mouth Esophageal Stent upper end again, allow the front portion of two-restriction mouth Esophageal Stent integral coating at inner sleeve, equally annular elastic threads is wrapped in the joint-cutting on inner sleeve handle, by anterior the inner sleeve that is enclosed with two-restriction mouth Esophageal Stent, insert that to extend the front portion of trocar sheath among trocar sheath standby,

2) while performing the operation, first diseased region is carried out to radiography, under the supervision of X-ray machine, with two-restriction mouth Esophageal Stent, lay retracting device two-restriction mouth Esophageal Stent is delivered to esophagostenosis position from patient oral cavity, then with inner sleeve, two-restriction mouth Esophageal Stent is released from trocar sheath, two annular elastic threads are cut off, pull one end of annular elastic threads that whole annular elastic threads extracted out from the tight mouthful line of the annular that metallizes, the constraint expansion that two-restriction mouth Esophageal Stent departs from trocar sheath returns to perisystolic shape, entirety struts esophagostenosis place, extract internal and external casing, lay operation complete,

Two-restriction mouth Esophageal Stent reclaimer operation step is as follows:

Under the supervision of X-ray machine, trocar sheath is inserted to patient's stomach near the tight mouthful line of two-restriction mouth Esophageal Stent metallization annular coming off, sample pickup tongs is vised to the tight mouth of metallization annular line from middle insertion of trocar sheath, be drawn among trocar sheath, then extracted trocar sheath, taken out two-restriction mouth Esophageal Stent, check integrity, if intact, under the supervision of X-ray machine, again by two-restriction mouth Esophageal Stent, lay surgical operation step two-restriction mouth Esophageal Stent is put back to assigned address.

The described tight mouthful line of metallization annular is to be made by the chemical fibre of surperficial metal-plated membrane.

A kind of two-restriction mouth Esophageal Stent of the present invention is laid retracting device and is had following outstanding beneficial effect:

Simple in structure, can lay, also can reclaim, can use common stainless steel two-restriction mouth Esophageal Stent to replace the Ultimum Ti Esophageal Stent that tradition is expensive, before operation, need not carry out freezing memory to two-restriction mouth Esophageal Stent, not only facilitating operation, operating time are short, patient's misery is little, doctor's labor intensity is low, and two-restriction mouth Esophageal Stent reclaims back cover and reuses, and can also greatly alleviate patient's medical expense.

Accompanying drawing explanation

Fig. 1 is the overall structure schematic diagram that a kind of two-restriction mouth Esophageal Stent is laid retracting device;

Fig. 2 be a kind of two-restriction mouth Esophageal Stent lay retracting device lay using state structural representation;

Fig. 3 is the recovery using state structural representation that a kind of two-restriction mouth Esophageal Stent is laid retracting device;

Fig. 4 is the structural representation of two-restriction mouth Esophageal Stent;

Fig. 5 is the plan structure schematic diagram of inner sleeve handle.

Labelling in accompanying drawing represents respectively: two-restriction mouth Esophageal Stent 1, the tight mouthful line 2 of metallization annular, sample pickup tongs 3, inner sleeve 4, trocar sheath 5, horn-like handle 6, annular elastic threads 7, joint-cutting 8.

The specific embodiment

Below in conjunction with accompanying drawing, the present invention is described in further detail.

A kind of two-restriction mouth Esophageal Stent of the present invention is laid retracting device, its structure comprises trocar sheath 5, inner sleeve 4, sample pickup tongs 3 and two-restriction mouth Esophageal Stent 1, the jaw head of sample pickup tongs 3 interts among inner sleeve 4, inner sleeve 4 is inserted among trocar sheath 5, the rear end of trocar sheath 5 and inner sleeve 4 is provided with horn-like handle 6, on the horn-like handle 6 of inner sleeve 4, have joint-cutting 8, the two ends up and down of two-restriction mouth Esophageal Stent 1 are provided with the tight mouthful line 2 of metallization annular, tight mouthful of line 2 articulatings of metallization annular have annular elastic threads 7, annular elastic threads 7 is upwards strained in the joint-cutting on the horn-like handle 6 that is wrapped in inner sleeve 4, two-restriction mouth Esophageal Stent 1 is coated on to the front portion of inner sleeve 4,

1) two-restriction mouth Esophageal Stent is enclosed within to the end of inner sleeve, the annular elastic threads of first tractive two-restriction mouth Esophageal Stent lower end, allow two-restriction mouth Esophageal Stent shrink the leading section that is rolled in inner sleeve, annular elastic threads is wrapped in the joint-cutting on inner sleeve handle and is strained and fixed, the annular elastic threads of tractive two-restriction mouth Esophageal Stent upper end again, allow the front portion of two-restriction mouth Esophageal Stent integral coating at inner sleeve, equally annular elastic threads is wrapped in the joint-cutting on inner sleeve handle, by the inner sleeve front portion that is enclosed with two-restriction mouth Esophageal Stent, from pushing away before the horn mouth handle of trocar sheath inserts, to extend the front portion of trocar sheath standby,

Two-restriction mouth Esophageal Stent reclaimer operation step is as follows:

Except the disclosed technical characterictic of description of the present invention, be the known technology of those skilled in the art.

Claims

1. a two-restriction mouth Esophageal Stent is laid retracting device, it is characterized in that, comprise trocar sheath, inner sleeve, sample pickup tongs and two-restriction mouth Esophageal Stent, the jaw head of sample pickup tongs interts among inner sleeve, inner sleeve is inserted among trocar sheath, the rear end of trocar sheath and inner sleeve is provided with horn-like hands handle, on the horn-like handle of inner sleeve, have joint-cutting, the two ends up and down of two-restriction mouth Esophageal Stent are provided with the tight mouthful line of metallization annular, the tight mouthful wire loop of metallization annular is connected to annular elastic threads, annular elastic threads is upwards strained in the joint-cutting on the horn-like handle that is wrapped in inner sleeve, two-restriction mouth Esophageal Stent is coated on to the front portion of inner sleeve,

Two-restriction mouth Esophageal Stent reclaimer operation step is as follows:

2. the retracting device of laying according to claim 1, is characterized in that the described tight mouthful line of metallization annular is to be made by the chemical fibre of surperficial metal-plated membrane.