CN2683165Y

CN2683165Y - Dilating device

Info

Publication number: CN2683165Y
Application number: CN 200420015852
Authority: CN
Inventors: 刘建明; 王茂林
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-01
Filing date: 2004-03-01
Publication date: 2005-03-09
Anticipated expiration: 2014-03-01

Abstract

The dilating device provided by the utility model is composed of a dilating head and a connecting duct 2. The dilating device is characterized in that a tension device is connected to the end of the connecting duct. The dilating head comprises a supporting seat head 101 for connecting with the connecting duct, a supporting sheet 102, a dilating bracket 103, a dilating arc shape sheet 105 with a hinging seat 104, and an outer capsule 106. The supporting sheet is inserted inside the supporting seat head. The dilating bracket is a double-parallelogram hinging mechanism. The middle part of the dilating bracket is provided with a hinging point which is fixed on the end of the supporting sheet, and each hinge on the both sides of the dilating bracket is connected with the hinging seat on the dilating arc shape sheet. A tension pull line 3 is fixed on the two hinges of the middle part of the front end of the dilating bracket. The pull line passes through the inner hole of the supporting seat head and the connecting conduit to be connected to the tension device, and is connected with the tension device. The outer capsule is sheathed outside the dilating arc shape sheet and the supporting seat head. The dilating device has the advantages of once entering and repetition multi-time dilating, the pain of a patient alleviating, convenient operation, a controllable dilating degree, a larger application range, etc. The dilating device can be applicable to the narrow dilating method therapy of an esophagus, an urethra, etc.

Description

Dilator

Technical field

This utility model belongs to medical apparatus, relates to a kind of mechanical type dilator.

Background technology

At present, generally adopt dilatation for narrow treatments such as esophagus, urethras, what generally use is the conduit of many different thicknesses, from carefully to slightly expansion gradually.Like this conduit repeated multiple times is entered in patient's body, bring very big misery to the patient., dilator is improved, with being the fusiformis balloon dilator for this reason.It as China Patent No. 01268632.8 dumbbell shape air bag esophageal stricture dilator, adopt the method for thickening air bag mid portion, expanded in air bag two ends in gas replenishment process in advance, be dumbbell shaped, in the esophagectasia process, the esophageal stricture partial fixing can not moved up and down in the middle of air bag, can guarantee disposable accurate location expansion when esophagectasia.Though operation is comparatively convenient in the balloon dilator art, the shortcoming of compliance expansion is arranged, clinical efficacy is also unsatisfactory.

Summary of the invention

The purpose of this utility model is the deficiency that overcomes above existing dilator, provide a kind of can be easy to operate, can overcome the compliance expansion shortcoming of capsule dilator again, scalable and grasp the dilator that once enters the repeated multiple times expansion of expansion amount.

The dilator that this utility model provides is made up of expansion head, connecting duct; Its characteristics are: the end at conduit also connects a tensioner; And a described holder head that comprises connecting duct, support chip, expandable stent, the expansion arc-like sheet of band free bearing, the outer capsule expanded, its support chip is inserted in the holder head, expandable stent is two parallelogram linkworks, the centre has a hinge to be fixed on the end of support chip, both sides respectively be hinged free bearing on the arc-like sheet, be fixed with a tension force stay cord on two hinges in the middle of the expandable stent front end, stay cord passes the holder head endoporus and conduit is connected to tensioner, and links to each other with tensioner; Capsule set is contained in outside arc-like sheet and the holder head.

Above-described tensioner can be cutting nippers shape tension bracket, and conduit is fixed on a tension bracket termination, the fixing tension force stay cord head of drawing from conduit and tension bracket termination in other end.Tensioner also can be by the band female thread tension force head of connecting duct, and bolt with holes is formed; The tension force stay cord head that the bolt hole internal fixation is drawn from conduit and tension force head.

The dilator that this utility model provides is compared with background technology, has once to enter the repeated multiple times expansion, alleviates patient's misery.Be convenient to operation, and can control degrees of expansion, advantage such as range of application is bigger.Applicable to narrow dilatation treatment such as esophagus, urethra.

Description of drawings

Fig. 1 is the profile of dilator and the structural representation of cutting nippers formula tensioner;

Fig. 2 is the structural representation of expansion head;

Fig. 3 is the horizontal cut-away view of expansion head;

Fig. 4 is the bearing parts transversely cut-away view of expansion head;

Fig. 6 is the structural representation of spiral tensioner;

The specific embodiment

The following drawings explanation specific embodiment

Fig. 1 is the dilator of scissor tensioner, comprises expansion 1, connecting duct 2; End at conduit connects a tensioner 4; Fig. 2, Fig. 3 and shown in Figure 4, expand expansion arc-like sheet 105, the outer capsule 106 of a holder head 101 that comprises connecting duct, support chip 102, expandable stent 103, band free bearing 104, its support chip is inserted in the holder head, expandable stent is two parallelogram linkworks, the centre has a hinge to be fixed on the end of support chip, both sides respectively be hinged free bearing on the arc-like sheet, on the support chip on the expansion head, also can be provided with guide groove 107, and hinge is contained in the guide groove in the middle of expandable stent preceding.Be fixed with a tension force stay cord 3 on two hinges in the middle of the expandable stent front end, stay cord passes the holder head endoporus and conduit is connected to tensioner, and links to each other with tensioner; Capsule set is contained in outside arc-like sheet and the holder head.

The tensioner 4 of dilator shown in Figure 1 is the cutting nippers formula.Tensioner is a cutting nippers shape tension bracket, and conduit is fixed on a tension bracket termination, the fixing tension force stay cord head 3 of drawing from conduit and tension bracket termination in other end.

Tensioner shown in Figure 5, by the band female thread tension force head 5 of connecting duct 2, bolt 6 with holes is formed; The tension force stay cord head 3 that the bolt hole internal fixation is drawn from conduit and tension force head.

The dilator that this utility model provides enters narrow esophagus during use, dilation therapy with the tensioner pulling tension force stay cord 3 of dilator, is promptly clutched cutting nippers 4, perhaps tightens the bolt 6 on the tension force head; Two parallelogram linkworks in the expansion head shorten and broaden, and promote the expansion arc-like sheet and expand outwardly, and expand 1 chap, thus be implemented in once enter after dilation therapy repeatedly.

Claims

1, a kind of dilator is made up of expansion head (1), connecting duct (2); It is characterized in that: the end at conduit connects a tensioner (4); Described expansion arc-like sheet (105), the outer capsule (106) of expanding a holder head (101) that comprises connecting duct, support chip (102), expandable stent (103), band free bearing (104), its support chip is inserted in the holder head, expandable stent is two parallelogram linkworks, the centre has a hinge to be fixed on the end of support chip, both sides respectively be hinged free bearing on the arc-like sheet, be fixed with a tension force stay cord (3) on two hinges in the middle of the expandable stent front end, stay cord passes the holder head endoporus and conduit is connected to tensioner, and links to each other with tensioner; Capsule set is contained in outside arc-like sheet and the holder head.

2, according to the described a kind of dilator of claim 1, it is characterized in that: the support chip on the described expansion head is provided with guide groove (107), and the preceding middle hinge of expandable stent is contained in the guide groove.

3, according to the described a kind of dilator of claim 1, it is characterized in that: described tensioner is a cutting nippers shape tension bracket, and conduit is fixed on a tension bracket termination, the fixing tension force stay cord head of drawing from conduit and tension bracket termination in other end.

4, according to the described a kind of dilator of claim 1, it is characterized in that: described tensioner is by the band female thread tension force head (5) of connecting duct, and bolt with holes (6) is formed; The tension force stay cord head that the bolt hole internal fixation is drawn from conduit and tension force head.