CN203724278U

CN203724278U - Conveyor for medical stent

Info

Publication number: CN203724278U
Application number: CN201420019273.6U
Authority: CN
Inventors: 朱霖
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-01-14
Filing date: 2014-01-14
Publication date: 2014-07-23
Anticipated expiration: 2024-01-14

Abstract

The utility model discloses a conveyor for a medical stent. The conveyor comprises an inner rod assembly and an outer tube assembly, wherein the inner rod assembly is composed of a guiding head, a center tube, an inner rod pushing tube linkage part, an inner rod pushing tube, a handle, a releasing steel wire and a releasing steel wire insertion pin, and the outer tube assembly is composed of an outer tube and an outer tube handle. The conveyor is characterized in that two holes are formed in the guiding head, the trend of the two holes is basically in accordance with that of the center tube, when the releasing steel wire sequentially penetrates through the two holes, a gap with a closed periphery is formed among the two holes, the releasing steel wire and the center tube and can be used for suspending a metal turning part of one end of the stent, so that the stent and the conveyor are convenient and rapid to assemble and release in an agile mode, and the conveyor is high in adaptability to a self-expanding stent.

Description

A kind of carrier of Medical rack

Technical field

This utility model relates to a kind of Medical rack carrier, belongs to technical field of medical instruments.

Background technology

Oneself is widely used Medical rack, is mainly used to strut narrow positions, stifled fistula or topical etc., and object is to make tract unobstructed.

Medical rack is divided into self-inflated and expanding two classes substantially, when support implant into body, need to carry with carrier.Self-expandable stent is transported to the delivery mode after appointed part, is by pushing away support from the afterbody of support mostly, the trocar sheath of support recession simultaneously, and remove the constraint of trocar sheath to support, support is automatically swelling, withdraws from carrier.This carrier is just unavailable for segmentation overlay film frame, reason is that the film between adjacent two sections of stagewise support is soft, can in support dispose procedure, wrinkle arrive together, clog the space at support place, relative motion as " skin of stopping " between " checking " support and outer tube, thus this support is not discharged.The patent No. is 200520070630.2,, 201110171809.7 patent, a kind of Novel conveyer is disclosed, can be widely applicable for self-expandable stent, but these two kinds of bracket conveyers are lashed to support on carrier with bounding wire, operator needs professional training, otherwise A, can send out two lines and intersect, support cannot discharge, and cause the operative failure of stent endoprosthesis; B, toe-in is improper and firmly when releasing bracket, toe-in slippage, causes support release failure; Therefore these two problems allow doctor that the use of this carrier has been had and to have been avoided, and are restricting the use of stagewise support and this carrier.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of carrier of novel self-expandable stent, may be because using bounding wire intersection or toe-in slippage to cause the problem that support cannot discharge to solve existing carrier.

For achieving the above object, this utility model is achieved through the following technical solutions:

A kind of carrier of Medical rack, comprise: the interior bar assembly being formed by target seeker (1), central canal (3), interior bar ejector sleeve connector (4), interior bar ejector sleeve (5), handle (6), release steel wire (2), release steel wire latch (7), and the outer tube assembly being made up of outer tube (9) and outer tube handle (8) forms.It is characterized in that: move towards two basically identical holes at the upper structure trend of target seeker (1) and central canal (3), in the time that release steel wire (2) penetrates above two holes successively, between above two holes, and discharge between steel wire (2) and central canal (3), form the space (A) of a surrounding sealing.In the time discharging steel wire (2) extraction, this space is no longer sealing just.

Using method: Medical rack is set on the interior bar assembly of this carrier, the mobile steel wire (2) that discharges, allow support embed in the space (A) of the surrounding sealing shown in Fig. 1 near a certain turning point of metal of target seeker (1) one end, pack support and interior bar assembly into outer tube assembly.When doctor delivers to patient's diseased region with carrier by support, in keeping, bar assembly is relative with patient static, and recession outer tube assembly, extracts and discharge steel wire latch (7), and support and interior bar assembly are thrown off.Withdraw from carrier outside patient body.

This utility model compared with prior art, has following obvious advantage:

This utility model in use, does not need to tie and roll with silk thread, and allows support and carrier realize quick combination or to separate.Having solved existing carrier may be because using bounding wire intersection or toe-in slippage to cause the problem that support cannot discharge.

To sum up, this utility model uses safe and efficient, strong with self-expandable stent suitability, can effectively eliminate the worry in doctor's use, thereby be better patient's traffic, removes patient's suffering of illness.

Brief description of the drawings

Fig. 1 is interior bar assembly schematic diagram;

Fig. 2 is the schematic perspective view of interior bar assembly head;

Fig. 3 is outer tube handle and outer tube cross-sectional schematic.

Sequence number in figure is: the 1st, and target seeker; The 2nd, discharge steel wire; The 3rd, central canal; The 4th, interior bar ejector sleeve connector; The 5th, interior bar ejector sleeve; The 6th, hands handle; The 7th, discharge steel wire latch; The 8th, outer tube hands handle; The 9th, outer tube.

Specific embodiment

As shown in Figure 1, interior bar assembly comprises: by target seeker (1), release steel wire (2), central canal (3), interior bar ejector sleeve connector (4), interior bar ejector sleeve (5), handle (6), release steel wire latch (7).When discharging steel wire (2) away from the one end that discharges steel wire latch (7), while moving towards basically identical two holes through handle (6), interior bar ejector sleeve (5), interior bar ejector sleeve connector (4), the upper trend of target seeker (1) with central canal (3) successively, two holes on above-mentioned target seeker (1), discharge the space that has formed sealing between steel wire (2), central canal (3) four, as shown in Figure 1, Figure 2 in the region shown in alphabetical A.

In the present embodiment, region shown in alphabetical A in Fig. 1, left side is to discharge steel wire (2), right side is central canal (3) and upper parts of plastics thereof, and the trend and the central canal (3) that are arranged on up and down target seeker (1) afterbody move towards basically identical two holes.Certainly; if the region shown in alphabetical A in Fig. 1; its bound is that trend is moved towards basically identical two holes with central canal (3); if there is one of them Huo Liangge hole, hole to be arranged in addition on upper another part of central canal (3); caing be compared to is the target seeker in the present embodiment (1) to be divided into two vertically have no progeny; install to the upper of central canal (3), this also should belong to protection domain of the present utility model.

Before clinical use; Medical rack is set on the interior bar assembly of this carrier; the mobile steel wire (2) that discharges; allow support embed near a certain turning point of metal of target seeker (1) one end in the space (A) of the surrounding sealing shown in Fig. 1; at this moment compressed stent; allow support pack outer tube assembly into together with interior bar assembly, interior bar assembly is relative with outer tube assembly static simultaneously, outer pipe (9) compression and protective cradle.

When use, in the time that patient's diseased region delivered to by support by carrier, in keeping, bar assembly is relative with patient static, doctor is by outer tube handle (8) recession outer tube assembly, remove the constraint of outer tube to support, extract and discharge steel wire latch (7) the outer release steel wire (2) of taking out, support and interior bar assembly are thrown off.Withdraw from carrier outside patient body, the mission of carrier completes again.

Claims

1. the carrier of a Medical rack, comprise: by target seeker (1), central canal (3), interior bar ejector sleeve connector (4), interior bar ejector sleeve (5), handle (6), discharge steel wire (2), discharge the interior bar assembly of steel wire latch (7) composition, and the outer tube assembly being made up of outer tube (9) and outer tube handle (8) forms, it is characterized in that: move towards two basically identical holes at the upper structure trend of target seeker (1) and central canal (3), in the time that release steel wire (2) penetrates above two holes successively, between above two holes, and discharge between steel wire (2) and central canal (3), form the space of a surrounding sealing, in the time discharging steel wire (2) extraction, this space is no longer sealing just.