CN210813407U - A balloon dilatation catheter with stable air pressure - Google Patents

Abstract

The utility model discloses a balloon dilatation catheter with stable air pressure, which comprises a central tube and a sleeve which are coaxially arranged from inside to outside, wherein an inflation cavity is formed between the central tube and the sleeve; and an air pressure sensor is arranged on the outer wall of the central tube in the balloon. Compared with the prior art, the utility model has the following advantages: the utility model arranges the air pressure sensor in the sacculus, and adjusts and controls the air inflation and suction integrated pump to inflate and suck the sacculus by realizing the input preset pressure value so as to maintain the stability of the air pressure in the sacculus; the balloon can be detached and replaced, so that the flexibility of the expansion catheter is improved, the cross infection among patients is avoided, and the balloon replacement cost is reduced; the dilating catheter has simple structure, practicality and convenient operation.

Description

A balloon dilatation catheter with stable air pressure

technical field

The utility model relates to the technical field of an interventional balloon catheter, in particular to a balloon dilatation catheter with stable air pressure.

Background technique

Balloon dilatation catheter is a tool for endovascular angioplasty and has been widely used in percutaneous transluminal angioplasty and percutaneous transluminal coronary angioplasty. Most of the existing balloon catheters have a structure in which a single expandable balloon is arranged at the distal end of the catheter with a certain axial length, and the expansion of the expandable balloon is used to spread the diseased part of the blood vessel to achieve the purpose of treatment.

In the process of using the balloon dilatation catheter, the air pressure in the balloon will change slowly with the passage of treatment time. It is important to pay attention to the air pressure in the balloon at any time and maintain the air pressure in the balloon to be stable.

Utility model content

The technical problem to be solved by the utility model is: in the process of using the balloon dilatation catheter, the air pressure in the balloon will change slowly with the passage of treatment time, and the air pressure in the balloon should be paid attention to at any time and the air pressure in the balloon should be kept stable. . To this end, a balloon dilatation catheter with stable air pressure is provided.

The utility model solves the above-mentioned technical problems through the following technical solutions:

A balloon dilatation catheter with stable air pressure, comprising a central tube and a sleeve arranged coaxially from the inside to the outside, an inflatable cavity is formed between the central tube and the sleeve, and an inflatable cavity is formed on the lower periphery of the central tube and the bottom of the sleeve can be connected. The connected balloon is disassembled, and the balloon is communicated with the inflation cavity; an air pressure sensor is arranged on the outer wall of the central tube in the balloon.

In a preferred solution, the top of the sleeve is also connected with a base, and the base is provided with a central operating hole that is coaxial with and communicated with the central pipe; the sleeve is radially connected with an inflation port that communicates with the inflation cavity .

Preferably, the upper and lower ends of the balloon are connected with a first threaded portion and a second threaded portion, and the first threaded portion and the second threaded portion are respectively screwed and fixed to the outer wall of the upper end of the balloon and the lower end of the center tube. .

In a preferred solution, a control panel is fixed on one side of the base, the air inlet is filled with air by an integrated charging-suction pump, the air pressure sensor and the switch of the integrated charging-suction pump are all electrically connected to the control panel; the control panel is also provided with There is a numerical reading screen.

Preferably, the surface of the balloon is formed with anti-skid protrusions.

Compared with the prior art, the utility model has the following advantages: the utility model sets the air pressure sensor in the balloon, and adjusts and controls the filling and suction integrated pump to inflate the balloon by realizing the input predetermined pressure value, so as to maintain the balloon. The air pressure in the balloon is stable; the balloon can be disassembled and replaced, which increases the flexibility of the expansion catheter, avoids cross-infection between patients, and reduces the cost of balloon replacement; the expansion catheter has a simple, practical structure and is easy to operate.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

Detailed ways

The embodiments of the present utility model are described in detail below. The present embodiment is implemented on the premise of the technical solution of the present utility model, and provides detailed implementation methods and specific operation processes, but the protection scope of the present utility model is not limited to the following described embodiment.

Example 1

As shown in FIG. 1 , a balloon dilation catheter with stable air pressure includes a central tube 30 and a sleeve 20 coaxially arranged from the inside to the outside, and an inflatable cavity 40 is formed between the central tube 30 and the sleeve 20 . A balloon 50 detachably connected to the bottom of the sleeve 20 is provided on the lower periphery of the central tube 30 , and the balloon 50 communicates with the inflation cavity 40 ; The air pressure sensor 60 is a piezoresistive integrated pressure transducer SXOSG2, and its sensor part is located on the outer wall of the central tube 30 in the balloon 50, and its type is not limited, as long as the central tube 30 can be assembled in the balloon 50. It can play the role of air pressure sensor.

The top of the sleeve 20 is also connected with a base 10, and the base 10 is provided with a central operation hole 11 that is coaxial with and communicated with the central pipe 30; the sleeve 20 is radially connected with an inflatable cavity 40 Connected inflation port 41 .

One end of the balloon 50 close to the base 10 is the upper end, and one end away from the base 10 is the lower end; The two threaded portions 53 are respectively screwed and fixed with the outer wall of the sleeve 20 at the upper end of the balloon 50 and the outer wall of the central tube 30 at the lower end. The balloon 50 is detachable and replaceable, which increases the flexibility of the expansion catheter, avoids cross infection between patients, and reduces the cost of replacing the balloon 50 .

A control panel 70 is fixed on one side of the base 10 , the air inlet 41 is inflated by a charging-suction integrated pump, and the air pressure sensor 60 and the switch of the charging-suction integrated pump are all electrically connected to the control panel 70 ; the control panel 70 There is also a numerical value reading screen 71 on it.

The surface of the balloon 50 is formed with anti-skid protrusions 51, which can effectively prevent the final treatment effect caused by the back and forth sliding of the balloon 50 in the affected area during inflation and use. low efficiency.

Specifically, a required predetermined air pressure value is set in the control panel 70 in advance. When the air pressure in the balloon 50 changes, the air pressure sensor 60 transmits the changed pressure value to the control panel 70, and the value reading screen 71 can also Read the changed pressure value, and at the same time, the control panel 70 controls the switch of the inflatable and inhalation pump to start to inflate or inhale the balloon 50, so as to maintain the pressure value in the balloon 50 to the predetermined air pressure value set. Thus, the air pressure in the balloon 50 is stabilized. The control panel 70 is powered by a plug-in power source, rechargeable batteries or ordinary alkaline batteries.

The basic principles, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions describe only the principles of the present invention. There are various changes and improvements that fall within the scope of the claimed invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. A balloon dilation catheter with stable air pressure, comprising a central tube (30) and a sleeve (20) coaxially arranged from the inside to the outside, and an inflatable cavity is formed between the central tube (30) and the sleeve (20). (40), characterized in that: a balloon (50) that is detachably connected to the bottom of the sleeve (20) is provided at the lower periphery of the central tube (30), and the balloon (50) is connected to an inflatable cavity (40) communication; an air pressure sensor (60) is arranged on the outer wall of the central tube (30) in the balloon (50). 2. The balloon dilation catheter with stable air pressure according to claim 1, wherein the top of the sleeve (20) is further connected with a base (10), and the base (10) is provided with The central operating hole (11) is coaxial with and communicated with the central pipe (30); the sleeve (20) is radially connected with an inflation port (41) communicated with the inflation cavity (40). 3. The balloon dilation catheter with stable air pressure according to claim 2, wherein the upper and lower ends of the balloon (50) are connected with a first threaded portion (52) and a second threaded portion (53) The first threaded portion (52) and the second threaded portion (53) are respectively screwed and fixed with the outer wall of the sleeve (20) at the upper end of the balloon (50) and the outer wall of the central tube (30) at the lower end. 4 . The balloon dilation catheter with stable air pressure according to claim 3 , wherein a control panel ( 70 ) is fixed on one side of the base ( 10 ), and the inflation port ( 41 ) is pumped by an integrated pump for charging and suction. 5 . For air charging, the air pressure sensor (60) and the switch of the charging-suction integrated pump are all electrically connected to the control panel (70); the control panel (70) is also provided with a numerical reading screen (71). 5 . The balloon dilation catheter with stable air pressure according to claim 4 , characterized in that: the surface of the balloon ( 50 ) is formed with anti-skid protrusions ( 51 ). 6 .

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