CN204971725U - Two -chamber sacculus expanding support - Google Patents

Abstract

The utility model relates to a medical sacculus expanding support, concretely relates to two -chamber sacculus expanding support, including connecting, connect the tail end of personally experiencing sth. Part of the body with the pipe and be linked together, the head end of the pipe body be provided with near -end sacculus and distal end sacculus, the diameter of near -end sacculus be greater than the diameter of distal end sacculus, the one end of near -end sacculus and near -end connecting pipe be linked together, the other end of near -end connecting pipe is connected with the valve, the one end of distal end sacculus and distal end connecting pipe be linked together, the other end of distal end connecting pipe is connected with the valve, the distal end sacculus on be provided with the support, near -end sacculus diameter is big than the distal end sacculus, has prevented that vertebral artery opening position support from putting into the complication that easy emergence support shifted, in the operation, has portably, sufficient near -end sacculus is earlier changed into to the operation that need fix a position repeatedly originally to swift advantage, pinpoints, under the circumstances about shifting in anxious support process of expansion, expands the distal end sacculus, puts into the support.

Description

A kind of Dual-chamber saccular expanding support

Technical field

This utility model relates to medical saccule dilating cribbing, is specifically related to a kind of Dual-chamber saccular expanding support.

Background technology

Vertebral artery peristome is narrow accounts for 25% ~ 40% of cerebrovascular stenosis, its Etiological be atherosclerosis cause narrow, in addition as arterial inflammation, dissecting aneurysm is relatively rare, its clinical main manifestations is Posterior circulation ischemia, such as dizzy, has a syncopal attack, tinnitus etc., severe patient can cause posterior circulation ischemia.

Tradition is opened stenostomatous treatment for vertebral artery and is mostly to adopt the intervention for risk factor, as Intensive Lipid-lowing, controls blood pressure and blood glucose etc., is difficult to reach satisfied curative effect.Along with the maturation of endovascular treatment technology, 50% be greater than for vertebral artery opening stenosis and have clinical symptoms or stenosis to be greater than the patient of 70%, adopting Endovascular Stent-assisted Angioplasty treatment, achieve satisfied curative effect.But some patients is due to operating difficulties, or develop complications, cause backing positions to place undesirable or stent restenosis.Analyze reason mainly: because subclavian artery can be movable along with respiratory movement, the probability be shifted easily occurs when adding support release; Studies have found that the incidence rate of stent restenosis is relevant to the position of stentplacement, thinking that desirable vertebral artery open stand is placed at present be that pedestal lower end is concordant with vertebral artery opening, if ideal standard can be reached or close to ideal standard, will reduce the restenosis rate of vertebral artery opening to a great extent.

Summary of the invention

For the deficiency that prior art exists, this utility model provides one for the Dual-chamber saccular expanding support of vertebral artery opening narrow treatment.

The technical solution of the utility model is achieved in that a kind of Dual-chamber saccular expanding support, comprise joint, joint is connected with the tail end of catheter body, the head end of described catheter body is provided with proximal balloon and distal balloon catheter, the diameter of described proximal balloon is greater than the diameter of distal balloon catheter, described proximal balloon is connected with one end of near-end connection tube, the other end of near-end connection tube is connected with valve, described distal balloon catheter is connected with one end of far-end connection tube, the other end of far-end connection tube is connected with valve, described distal balloon catheter is provided with support.

Described proximal balloon is adjacent with the position of distal balloon catheter, and distal balloon catheter is in the outside of proximal balloon, the diameter 4mm larger than the diameter of distal balloon catheter of described proximal balloon.

Described catheter body comprises interior pipe and suit outer tube on inner pipe.

Described outer tube is provided with guide wire exit openings, upper interface and lower interface, described guide wire exit openings is positioned at the inner side of proximal balloon, and the central point of guide wire exit openings is 300mm to the distance at distal balloon catheter head end place, described upper interface and lower interface lay respectively at the both sides up and down of outer tube afterbody.

One end of described near-end connection tube is through being connected with proximal balloon from lower interface, and one end of described far-end connection tube is passed and is connected with distal balloon catheter from upper interface.

The head end place of described interior pipe is connected with one end of seal wire, and the other end of seal wire is drawn from guide wire exit openings (10).

This utility model has following beneficial effect: 1, balloon design is that catheter body head end exists two sacculus successively, two balloon interior have connection tube to be connected with tail end respectively, can expand respectively and pumpback, avoid and need repeatedly to exchange the complex operations introducing sacculus in the past; 2, proximal balloon diameter is large compared with distal balloon catheter, prevents vertebral artery opening support to insert the also complication of easily generation stent migration; 3, in operation, having easy, efficiently advantage, the operation change originally needing repeatedly to locate for first filling proximal balloon, accurately locating, when not worrying to be shifted in stent-expansion process, expansion distal balloon catheter, Stent Implantation; 4, in price, comparatively two sacculus economy, for patient saves expense.

Accompanying drawing explanation

Fig. 1 is axle side structure schematic diagram of the present utility model.

Detailed description of the invention

As shown in Figure 1, a kind of Dual-chamber saccular expanding support, comprise joint 8, joint 8 is connected with the tail end of catheter body, the head end of described catheter body is provided with proximal balloon 2 and distal balloon catheter 3, the diameter of described proximal balloon 2 is greater than the diameter of distal balloon catheter 3, described proximal balloon 2 is connected with one end of near-end connection tube 5, the other end of near-end connection tube 5 is connected with valve 7, described distal balloon catheter 3 is connected with one end of far-end connection tube 6, the other end of far-end connection tube 6 is connected with valve 7, and described distal balloon catheter 3 is provided with support 11.Described proximal balloon 2 is adjacent with the position of distal balloon catheter 3, and distal balloon catheter 3 is in the outside of proximal balloon 2, the diameter 4mm larger than the diameter of distal balloon catheter 3 of described proximal balloon 2.The outer tube 9 that described catheter body comprises interior pipe 1 and is sleeved on interior pipe 1.Described outer tube 9 is provided with guide wire exit openings 10, upper interface 12 and lower interface 13, described guide wire exit openings 10 is positioned at the inner side of proximal balloon 2, and the central point of guide wire exit openings 10 is 300mm to the distance at distal balloon catheter 3 head end place, described upper interface 12 and lower interface 13 lay respectively at the both sides up and down of outer tube 9 afterbody.One end of described near-end connection tube 5 is through being connected with proximal balloon 2 from lower interface 13, and one end of described far-end connection tube 6 is passed and is connected with distal balloon catheter 3 from upper interface 12.The head end place of described interior pipe 1 is connected with one end of seal wire 4, and the other end of seal wire 4 is drawn from guide wire exit openings 10.

This utility model is in use: two sacculus are non-compliance sacculus, less to the damage of venous sinus wall, sacculus is manufactured by soft polyurethane material, catheter body is by polrvinyl chloride or polyurethane material manufacture, according to the diameter combination that sinus thrombosis and position, venous sinus narrow place venous sinus diameter select sacculus different, seal wire 4 introduces catheter body from catheter body head end, be about 30cm place in catheter body apart from distal balloon catheter head end to draw, sacculus is put for introducing seal wire, sacculus connection chamber is used for full and retraction sacculus, after catheter body enters venous sinus along seal wire, arrive narrow positions, inject contrast medium through valve 7 and fill up proximal balloon 2, proximal balloon 2 front end is made to press close to narrow positions mouth end, by distal balloon catheter 3 and on support 11 be accurately positioned narrow positions, inject contrast medium through valve 7 and fill up distal balloon catheter 3, releasing bracket, after support release, pumpback proximal balloon 2 and distal balloon catheter 3 respectively, what complete support 11 inserts operation.

Claims (6)

1. a Dual-chamber saccular expanding support, comprise joint (8), joint (8) is connected with the tail end of catheter body, it is characterized in that: the head end of described catheter body is provided with proximal balloon (2) and distal balloon catheter (3), the diameter of described proximal balloon (2) is greater than the diameter of distal balloon catheter (3), described proximal balloon (2) is connected with one end of near-end connection tube (5), the other end of near-end connection tube (5) is connected with valve (7), described distal balloon catheter (3) is connected with one end of far-end connection tube (6), the other end of far-end connection tube (6) is connected with valve (7), described distal balloon catheter (3) is provided with support (11).

2. Dual-chamber saccular expanding support according to claim 1, it is characterized in that: described proximal balloon (2) is adjacent with the position of distal balloon catheter (3), and distal balloon catheter (3) is in the outside of proximal balloon (2), the diameter 4mm larger than the diameter of distal balloon catheter (3) of described proximal balloon (2).

3. Dual-chamber saccular expanding support according to claim 1, is characterized in that: described catheter body comprises interior pipe (1) and is sleeved on the outer tube (9) on interior pipe (1).

4. Dual-chamber saccular expanding support according to claim 3, it is characterized in that: described outer tube (9) is provided with guide wire exit openings (10), upper interface (12) and lower interface (13), described guide wire exit openings (10) is positioned at the inner side of proximal balloon (2), and the central point of guide wire exit openings (10) is 300mm to the distance at distal balloon catheter (3) head end place, described upper interface (12) and lower interface (13) lay respectively at the both sides up and down of outer tube (9) afterbody.

5. Dual-chamber saccular expanding support according to claim 3, it is characterized in that: one end of described near-end connection tube (5) is through being connected with proximal balloon (2) from lower interface (13), and one end of described far-end connection tube (6) is passed and is connected with distal balloon catheter (3) from upper interface (12).

6. Dual-chamber saccular expanding support according to claim 4, is characterized in that: the head end place of described interior pipe (1) is connected with one end of seal wire (4), and the other end of seal wire (4) is drawn from guide wire exit openings (10).