CN2254330Y

CN2254330Y - Plugging device for patent arterial ductus

Info

Publication number: CN2254330Y
Application number: CN 96229647
Authority: CN
Inventors: 王永武
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-12
Filing date: 1996-04-12
Publication date: 1997-05-21
Anticipated expiration: 2006-04-12

Abstract

The utility model relates to a plugging device for patent arterial guide pipes, comprising a tubular netted bracket, a top plug guide pipe which is connected with the tubular netted bracket and a guide wire which is penetrated through the top plug guide pipe and a balloon outstretched guide pipe. A dumbbell-shaped plastic foam plug is arranged in the tubular netted bracket. The middle of the outside surface of the tubular netted bracket is provided with a binding ligament. An outstretched balloon is arranged in the plug. The balloon outstretched guide pipe is penetrated through the middle of the top plug guide pipe and is movably connected with the middle of the top plug guide pipe. A contrast medium outstretched balloon is injected for plugging and closing the patent arterial guide pipes. A peripheral blood vessel with a smaller inner diameter is outstretched and both ends can be tightly fixed to the huge inner wall of PDA for blocking blood flow. The utility model has simple and safe operation.

Description

The stifled device that closes of patent ductus arteriosus

This utility model relates to medical apparatus and instruments, and particularly a kind of congenital heart disease ductus arteriosus end is closed (be called for short PDA) and non-ly opened that breast is stifled to close therapy equipment.

Patent ductus arteriosus (PDA) is a kind of very common congenital heart disease, and its sickness rate occupies second in the congenital heart disease case.Under normal conditions,, at first consider to open the difficult to handle art of breast knot, perhaps cut off seam and close art in case make a definite diagnosis.

Porstmann made stopper with the Ivalon foam sponge in 1967, drive in the wrong direction for blocking up by femoral artery and close the PDA achieving success, but this apparatus and technology are only applicable to patient more than 6 years old, and the PDA internal diameter must be less than 8mm.

The steel wire of usefulness buckles such as Rashikind in 1979 is made the umbrella skeleton, and wraps up in foam plastics, just as the umbrella cover of umbrella, enters PDA by femoral vein, opens umbrella cover and reaches stifled purpose of closing blood flow, can treat infant.But this device and technology are only applicable to the patient of PDA internal diameter less than 7mm, and have the patient more than 10% to have residual shunt.Because this device needs import, therefore cost an arm and a leg.

The PDA internal diameter is greater than patient Chang Bingfa pulmonary hypertension, the catheter wall calcification of 8mm, generally under the cryotron outer circulation, carry out PDA cut-out seam and close art or close art through the pulmonary artery inseam, this operating difficulty height is dangerous big, complication is many, is one of the most difficult radically treating heart diseases operation.In developed country, most of PDA patients the childhood period obtained healing, and at the developing china family, most of PDA patients go to seek medical advice after growing up again, often all merge pulmonary hypertension, therefore, can open with non-that the breast method is stifled closes huge PDA (internal diameter is greater than 8mm), be still unsolved in the world a great problem.

The purpose of this utility model provides a kind of stifled device that closes of improved patent ductus arteriosus, and it can pass through the less peripheral vessels of internal diameter, and its two end of expansion back can be securely fixed in the inwall of huge PDA, stops blood flow with the stifled treatment PDA that closes.

The stifled device that closes of a kind of patent ductus arteriosus described in the utility model comprises a pipe-shaped net rack, the one top plug conduit that is connected with pipe-shaped net rack, and a guide wire in the top plug conduit, dumbbell shaped foam plastics stopper is housed in the described pipe-shaped net rack, and system there is the frenulum of tying letter in the middle of the pipe-shaped net rack outer surface; Be coated with the dilating sacculus that its stage casing is arranged in the pipe-shaped net rack, its two end respectively extends in the pipe-shaped net rack two ends outside in the dumbbell shaped foam plastics stopper in the described pipe-shaped net rack, one end of dilating sacculus is equipped with foley's tube, and foley's tube passes the centre of top plug conduit and flexibly connects with it; Described guide wire is filled in the conduit through the top and is passed the centre of foley's tube and dilating sacculus, injects the contrast agent dilating sacculus with the stifled patent ductus arteriosus of closing.

This utility model is reasonable in design, and is easy to operate, need not open operation under breast or the extracorporeal circulation, only need under part or the sacral block in groin place percutaneous femoral artery or femoral venous puncture, implement stifled closing, thereby damage little and safety, be applicable to child and adult, be particularly useful for huge PDA.

Below in conjunction with accompanying drawing this utility model is elaborated.

Fig. 1 is a kind of stifled structural representation that closes device of patent ductus arteriosus.

Fig. 2 is the user mode figure after the above-mentioned stifled dilating sacculus that closes device is expanded.

Fig. 3 is the above-mentioned stifled pipe-shaped net rack structural representation that has the dumbbell shaped foam plastics that closes device.

Fig. 4 is the above-mentioned stifled pipe-shaped net rack structural representation with medical film wrapped up in that closes device.

Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of patent ductus arteriosus stifled closes the top plug conduit 2 that device comprises that a pipe-shaped net rack 1, is connected with pipe-shaped net rack 1, and a guide wire 3 in the top plug conduit 2.

Pipe-shaped net rack 1 is a kind of fine plastic tubulose rustless steel rack that has, and liner is to be the whippy medical foam plastic stopper 4 of dumbbell shaped.Also can serve as a contrast to be the polypropylene formal foam stopper 4 of dumbbell shaped.This stopper 4 has good compression, is solid, shaped after the moisture content volatilization, and can return to original volume and original shape 10 times 30 seconds in room temperature liquid, and its cross section central authorities can pass through the 5-7F foley's tube.

There is the frenulum of tying up 5 in system in the middle of pipe-shaped net rack 1 outer surface, also can be the less steel wire of the coefficient of expansion.

Be coated with dilating sacculus 6 in the dumbbell shaped foam plastics stopper 4, its stage casing is arranged in the pipe-shaped net rack 1, and its two end respectively extends in the pipe-shaped net rack 1 two ends outside.One end of dilating sacculus 6 is equipped with foley's tube 7, and foley's tube 7 passes the centre of top plug conduit 2 and flexibly connects with it.Dilating sacculus 6 is two sacculus or single saccule.

Guide wire 3 is filled in the conduit 2 through the top and is passed the centre of foley's tube 7 and dilating sacculus 6, injects the contrast agent dilating sacculus with the stifled patent ductus arteriosus (PDA) of closing.Pipe-shaped net rack 1 after dilating sacculus 6 expansions is together with dumbbell shaped foam plastics stopper 4, form dumbbell shaped or Double Tops umbrella, can be securely fixed in master, the pulmonary artery inwall of PDA two ends, and can not compressed, thereby obtain the good stifled effect of closing by any tissue of body such as calcification, cicatrix tunica intima and tumor tissues.

Referring to Fig. 4, pipe-shaped net rack 1 liner is with medical foam plastic stopper 4, and it can play the valve effect that stops blood flow with pipe-shaped net rack 1 compression or expansion.When the PDA internal diameter was above greater than 10mm, pipe-shaped net rack 1 outer surface was wrapped up in medical film 8 or by the artificial blood vessel after the expansion, as the Double Tops umbrella to stop blood flow.

Band film leakproof blood device is equipped with in the end of top plug conduit 2.

Guide wire 3 is a rubber-like hard fibre steel wire, and its head is equipped with one section tie wire.

When using this utility model, through skin puncture femoral artery, insert band film dilating catheter, send into the cardiac catheter of J type, arrive pulmonary artery by PDA, pressure measurement, retreat to aorta end distance PDA and upward carry out Aortography in the 1cm place, with internal diameter and the form of demonstration PDA, and the stifled device that closes of this utility model PDA of selection appropriate size, again by inserting the fiber guide wire under the J type catheter guidance to pulmonary artery branch, send into the stifled device that closes of PDA at x-ray fluoroscopy lower edge guide wire, dilating sacculus is fully expanded pipe-shaped net rack two ends and is come, and takes out most sacculus contrast agent then, fixing top plug conduit, foley's tube is retreated in the top plug conduit, withdraw from externally together with guide wire, pipe-shaped net rack is stayed in the PDA to realize stifled closing together with dumbbell shaped foam plastics stopper.Adopt said method also can implement stifled closing by femoral vein.

Easy and simple to handle, the safety of this utility model can be operated there not being the film radiography only to have under the videofluoroscopic condition, is suitable for most of hospitals and uses.

Claims

1. the stifled device that closes of a patent ductus arteriosus, it comprises a pipe-shaped net rack, the one top plug conduit that is connected with pipe-shaped net rack, and a guide wire in the top plug conduit, it is characterized in that, dumbbell shaped foam plastics stopper is housed in the described pipe-shaped net rack, and system there is the frenulum of tying up in the middle of the pipe-shaped net rack outer surface; Be coated with the dilating sacculus that its stage casing is arranged in the pipe-shaped net rack, its two end respectively extends in the pipe-shaped net rack two ends outside in the dumbbell shaped foam plastics stopper in the described pipe-shaped net rack, one end of dilating sacculus is equipped with foley's tube, and foley's tube passes the centre of top plug conduit and flexibly connects with it; Described guide wire is filled in the conduit through the top and is passed the centre of foley's tube and dilating sacculus, injects the contrast agent dilating sacculus with the stifled patent ductus arteriosus of closing.

2. the stifled device that closes of patent ductus arteriosus according to claim 1 is characterized in that, the outer surface of described pipe-shaped net rack is wrapped up in medical film or by the artificial blood vessel after the expansion.

3. the stifled device that closes of patent ductus arteriosus according to claim 1 is characterized in that, band film leakproof blood device is equipped with in the end of described top plug conduit.

4. the stifled device that closes of patent ductus arteriosus according to claim 1 is characterized in that, described guide wire is a rubber-like hard fibre steel wire, and its head is equipped with one section tie wire.

5. the stifled device that closes of patent ductus arteriosus according to claim 1 is characterized in that, described dilating sacculus is two sacculus or single saccule.