CN2745521Y

CN2745521Y - Atheroscleorsis plaque cutting instrument

Info

Publication number: CN2745521Y
Application number: CN 200420056436
Authority: CN
Inventors: 何菊
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-06
Filing date: 2004-12-06
Publication date: 2005-12-14
Anticipated expiration: 2014-12-06

Abstract

The utility model relates to an atheroscleorsis plaque cutting instrument, which is composed of a support handle 1 and a steel wire 2. The material of the support handle and the steel wire adopts 316L stainless steel for medical purpose, the support handle 1 adopts the flat steel bar, the cross-section of the support handle is the rounded long side with synclastic radian, the outside cambered surface of the cross-section is used to closely stick the inner wall of the artery, and a prismatic flute is arranged in the middle of the inside cambered surface. The cross-section of the steel wire 2 is the prism, the cross-section is travelled through the prismatic flute of the support handle 1 and extended from the top end of the support handle 1. The extension end of the steel wire 2 is welded with the top end of the support handle 1, the welding seam is paralleled to the vertical of the support handle 1, and thus, a ferrule vertically with the support handle 1 is formed on the upper end of the steel wire 2; simultaneously, a three square tool is formed by the prism on the steel wire 2 and one edge of the prism towards the inner side of the ferrule. The atheroscleorsis plaque cutting instrument has the advantages of reasonable structure, easy operation, adjustable ferrule size, thoroughly stripping atheroscleorsis plaque, 30 centimeters of once cut length, free from infection, small wound damage, low treatment fee, high work efficiency, long service life, easy manufacture, and low cost.

Description

The atheromatous plaque sickle

Technical field:

This utility model belongs to the vascular surgery medical apparatus and instruments, particularly relates to a kind of atheromatous plaque sickle.

Background technology:

Clinically multistage Atherosclerotic Obliteration of Lower Extremity patient is adopted operation method more at present, artificial blood vessel's bypass turn of tidal stream method and intra-arterial stent endoprosthesis are wherein arranged, both late results are all undesirable, incidence rates such as postoperative restenosis thrombosis are up to 30%-50%, restoration of blood flow only plays the effect of warding off the small stream footpath in addition simultaneously, the medical expense costliness of artificial blood vessel and intra-arterial stent endoprosthesis, patient is because problem is economically lost the therapy apparatus meeting more.

Summary of the invention:

Main purpose of the present utility model is to overcome above deficiency and a kind of wire loop adjustable size is provided, difference with the tremulous pulse vessel diameter changes, directly peel off stricture of artery director section atherosclerotic plaque, recover original smooth tube chamber and make blood flow unimpeded, improve the atheromatous plaque sickle of limbs blood confession.

The technical scheme that its technical problem that solves this utility model adopts is: it is made up of conduit and lasso, it is characterized in that: conduit adopts flat steel bar as support shank, to be the long limit of fillet be arc in the same way to its section, the middle part of intrados has vertical prismatic groove, penetrating steel wire and the prismatic groove that section is the rhizoma sparganic knife-edge in the prismatic groove is complementary, the top of steel wire and the welding of the top of support shank, its weld seam and support shank parallel longitudinal, the steel wire top is to the rounded lasso of support shank top end, and it is vertical with support shank, a rib of prismatic steel wire end face is towards the lasso inboard, prismatic steel wire and support shank prismatic groove are for being slidingly matched, and its cover loop diameter can enlarge during the pulling steel wire, dwindle.

This utility model can also adopt following technical measures: described support shank and steel wire all adopt the 316L medical stainless steel to make.

Advantage and the good effect that the utlity model has are: rational in infrastructure, the wire loop adjustable size, it changes with the difference of tremulous pulse internal diameter and regulates freely, in addition, vertical and horizontal all have cutting force, simple to operate, the doctor who generally has the vascular surgery basic skill all can operate, the arteriotomy damage is little during operation, one time Cutting Length reaches 30 centimeters, so cause is can not infect from the body tremulous pulse, medical expense is low, even if but restenosis or thrombosis repeat surgery are arranged, sickle can use repeatedly, long service life, high efficiency patient's misery is little, make easily, cost is low.

Description of drawings:

Fig. 1 is an atheromatous plaque sickle structural representation.

Fig. 2 is an atheromatous plaque sickle A-A section enlarged diagram.

Fig. 3 is an atheromatous plaque sickle B-B section enlarged diagram.

Among Fig. 1-Fig. 3: 1. support shank, 2. steel wire.

The specific embodiment:

For further understanding summary of the invention characteristics of the present utility model and effect following examples for example now, and conjunction with figs. is described in detail as follows, and sees also Fig. 1-Fig. 3.

As shown in Figure 1-Figure 3: this utility model is made up of support shank 1 and steel wire 2, their material adopts the 316L medical stainless steel, support shank 1 adopts its section of flat steel bar, and to be the long limit of fillet be arc in the same way, and outside cambered surface is close to blood vessel, and the middle part of inboard cambered surface has the prismatic groove; The section of steel wire 2 is a prismatic, it penetrates in the prismatic groove of support shank 1, and stretch out from the top of support shank 1, the top of the external part of steel wire 2 and support shank 1 welds together, its weld seam should with the parallel longitudinal of support shank 1, then the upper end of steel wire 2 forms and support shank 1 vertical lasso, and simultaneously, the prismatic on the steel wire 2 constitutes the inboard of a rib of knife with three edges and rhizoma sparganic towards lasso.

During use, opening an osculum near the artery plaque place, with the conventional son of peeling off speckle is separated with the arterial blood tube wall earlier, make it to form a circle gap, then, put into the atheromatous plaque sickle in the middle of speckle and arterial blood tube wall, push away support shank 1 and steel wire 2 inward, then the cover loop diameter at steel wire 2 tops becomes big identical with vessel diameter, support shank 1 is close to blood vessel wall and is being with steel wire 2 to advance, under the knife with three edges effect that cambered surface on the support shank 1 and steel wire 2 constitutes, speckle is peeled off from blood vessel wall, speckle be shaped as tubular, after speckle is stripped to specific length, toward the steel wire 2 of pulling back, lasso reduced then, the speckle that three corner angle of steel wire 2 inboards are stripped from because of undergauge clamps, it is blocked this section tremulous pulse as piston, then, wash arterial lumen with heparin saline, purpose is the fragment that comes off to be gone out tremulous pulse in case the terminal arterial thrombosis that takes place, after the flushing, be about to speckle toward the support shank 1 of pulling back and take tremulous pulse out of, sew up eparterial little otch again, promptly recovered the original smooth tube chamber of tremulous pulse.The utility model has the advantages that: rational in infrastructure, simple to operate, the lasso adjustable size, atheromatous plaque is peeled off thoroughly, one time Cutting Length reaches 30 centimeters, does not have and infects, and the wound damage is little, and medical expense is low, high efficiency, long service life, easy to manufacture, cost is low.

Claims

1, a kind of atheromatous plaque sickle, it is made up of conduit and lasso, it is characterized in that: conduit adopts flat steel bar as support shank, to be the long limit of fillet be arc in the same way to its section, the middle part of intrados has vertical prismatic groove, penetrating steel wire and the prismatic groove that section is the rhizoma sparganic knife-edge in the prismatic groove is complementary, the top of steel wire and the welding of the top of support shank, its weld seam and support shank parallel longitudinal, the steel wire top is to the rounded lasso of support shank top end, and it is vertical with support shank, a rib of prismatic steel wire section is towards the lasso inboard, prismatic steel wire and support shank prismatic groove are for being slidingly matched, and its cover loop diameter can enlarge during the pulling steel wire, dwindle.

2, atheromatous plaque sickle according to claim 1 is characterized in that: described support shank and steel wire all adopt the 316L medical stainless steel to make.