CN210785929U - Adjustable bent catheter - Google Patents

Abstract

The adjustable bending catheter comprises an outer inflation tube and an inner catheter, wherein the inner catheter is arranged in the outer inflation tube in a penetrating mode, the lower end of the outer inflation tube is connected with a catheter seat, a guide wire port is formed in the lower end face of the catheter seat, a gas injection port is formed in the side face of the catheter seat, the guide wire port is communicated with the inner catheter, the upper end of the inner catheter upwards penetrates out of the outer inflation tube, a balloon is fixedly connected to the periphery of the upper portion of the inner catheter, the upper end of the outer inflation tube is connected with the balloon, the gas injection port is communicated with the balloon through the outer inflation tube, and developing rings are arranged at the; to sum up, adopt the utility model discloses reducible surgical intervention apparatus's change frequency effectively shortens the operation time.

Description

Adjustable bent catheter

Technical Field

The utility model belongs to the technical field of the medical treatment, concretely relates to adjustable curved pipe.

Background

The blood vessel pipeline inside the human body is circuitous and tortuous, which often brings great difficulty to the operation, so the current interventional medical instruments applied to clinic have different specifications, sizes and the like, but due to the individualized difference of human anatomy, sometimes the instruments with different specifications can not be matched with the individualized physiological anatomy structure, thereby affecting the operation effect; in addition, adjust and change different apparatus and also increased patient's medical economy burden, because it is that the operator operates seal wire and pipe in the operation vascular intracavity in vitro, if the specification of pipe can not comparatively match with human physiology structure, can greatly increased operator's degree of difficulty and the emergence of operation complication, the pipe need cooperate human vascular pipeline to carry out suitable bending just can insert in patient's blood vessel, current adjustable bent pipe, the cost is expensive, the cost is higher, invisibly increased patient's economic burden.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the weak point among the prior art, provide an adjustable curved pipe, the reducible change frequency of interveneeing the equipment among the operation process to shorten the operation time, alleviate patient's economic pressure.

In order to solve the technical problem, the utility model adopts the following technical scheme: the adjustable bending catheter comprises an outer inflation tube and an inner catheter, wherein the inner catheter is arranged in the outer inflation tube in a penetrating mode, the lower end of the outer inflation tube is connected with a catheter seat, a guide wire port is formed in the lower end face of the catheter seat, a gas injection port is formed in the side face of the catheter seat, the guide wire port is communicated with the inner catheter, the upper end of the inner catheter upwards penetrates out of the outer inflation tube, a balloon is fixedly connected to the periphery of the upper portion of the inner catheter, the upper end of the outer inflation tube is connected with the balloon, the gas injection port is communicated with the balloon through the outer inflation tube, and developing rings are arranged at the;

the inner catheter is formed by sequentially connecting a memory alloy part, a hard tube part and a catheter part from top to bottom, and the balloon is wrapped on the peripheries of the memory alloy part and the hard tube part.

The inner catheter layer is coated with a PTFE coating.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has: the adjustable bending catheter changes the bending degree of the memory alloy tube by changing the amount of gas injection into the balloon, and the guide wire is guided to the target blood vessel through the guide wire port, so that the replacement frequency of interventional equipment in the operation process can be reduced, the operation time is shortened, and the use of interventional consumables is reduced; when the balloon is inflated, the hard tube part of the inner catheter can play a supporting role; the developing ring arranged on the saccule is used for medical personnel to observe the bending degree of the saccule; the inner layer of the inner catheter is coated with a PTFE coating, so that the frictional resistance can be reduced, and the delivery of the instrument is smoother.

To sum up, adopt the utility model discloses reducible surgical intervention apparatus's change frequency effectively shortens operation time, reduces medical cost.

Drawings

FIG. 1 is a schematic view of the balloon of the present invention being unfilled;

fig. 2 is a schematic structural diagram of the balloon of the present invention.

Detailed Description

As shown in fig. 1 and 2, the utility model discloses an adjustable bending catheter, including outer gas tube 7 and inner catheter, the inner catheter is worn to establish in outer gas tube 7, the lower extreme of outer gas tube 7 is connected with pipe seat 4, the terminal surface is equipped with wire guide port 8 under the pipe seat 4, the side of pipe seat 4 is equipped with gas injection mouth 9, wire guide port 8 is linked together with the inner catheter, the upper end of inner catheter upwards passes out outer gas tube 7, the upper portion periphery of inner catheter is fixedly connected with sacculus 5, the upper end of outer gas tube 7 is connected with sacculus 5, gas injection mouth 9 is communicated with sacculus 5 through outer gas tube 7, the front end and the rear end of sacculus 5 all are equipped with developing ring 6;

the inner catheter is formed by sequentially connecting a memory alloy part 3, a hard tube part 2 and a catheter part 1 from top to bottom, and the balloon 5 is wrapped on the peripheries of the memory alloy part 3 and the hard tube part 2.

The inner catheter layer is coated with a PTFE coating.

When the saccule 5 is not full, the memory alloy tube is in a bending shape, and when the saccule 5 is full, the memory alloy tube reaches a straight shape.

The length of the upper end of the memory alloy tube penetrating out of the balloon 5 is 1cm, the outer diameter of the outer inflation tube is 2-3mm, the length of the balloon 5 is 2-3cm, the diameter of the balloon 5 during compression is 2-3mm, the diameter of the balloon 5 during expansion is 3-4mm, and the total length of the whole catheter is 150 cm.

The flexibility of the tube body is optimized by the far-end tubes of the inner catheter and the outer inflation tube 7, and the flexibility of operation and the coaxiality of blood vessels are ensured; the near-end pipes of the inner catheter and the outer inflation pipe 7 are made of nylon high polymer materials to provide strong supporting force; the main body tubes of the inner catheter and the outer inflation tube 7 are hard and flexible, and accurate twisting performance is ensured.

Use the utility model discloses the time, medical personnel insert gas injection mouth 9 with the pump, inject gas in to sacculus 5 through outer gas tube 7, make sacculus 5 gas reach sufficient state, the memory alloy portion of inner catheter reaches straight state under sacculus 5's tractive effect this moment, then progressively insert patient's blood vessel with whole pipe, meet hematal curvature, the volume through the gas in regulation and control release sacculus 5, adjust the crooked degree of inner catheter memory alloy portion, medical personnel's accessible is observed the development ring 6 on the sacculus 5 and is judged the crooked degree of memory alloy pipe, treat that memory alloy pipe is crooked to suitable degree, can continue to advance the pipe, until getting into appointed target vessel position, can insert interior pipe through wire mouth 8 with the seal wire and carry out the operation.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.

Claims (2)

1. Adjustable curved pipe, its characterized in that: the developing device comprises an outer inflation tube and an inner catheter, wherein the inner catheter is arranged in the outer inflation tube in a penetrating mode, the lower end of the outer inflation tube is connected with a catheter seat, a guide wire port is formed in the lower end face of the catheter seat, a gas injection port is formed in the side face of the catheter seat and is communicated with the inner catheter, the upper end of the inner catheter upwards penetrates out of the outer inflation tube, a balloon is fixedly connected to the periphery of the upper portion of the inner catheter, the upper end of the outer inflation tube is connected with the balloon, the gas injection port is communicated with the balloon through the outer inflation tube, and developing rings are arranged at the front;

the inner catheter is formed by sequentially connecting a memory alloy part, a hard tube part and a catheter part from top to bottom, and the balloon is wrapped on the peripheries of the memory alloy part and the hard tube part.

2. The adjustable bend catheter of claim 1, wherein: the inner catheter layer is coated with a PTFE coating.

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