CN217409544U - Balloon catheter capable of selectively expanding diameter - Google Patents

Abstract

The utility model relates to a balloon catheter capable of selectively expanding diameter, which comprises a central balloon, wherein two ends of the central balloon are hermetically connected with the outer wall of a core tube, and the central balloon is communicated with the inner cavity of the core tube; a plurality of edge balloons disposed circumferentially about the central balloon; the front end soft head is respectively connected with the front end of the core tube and each edge balloon; the multi-cavity tube is internally provided with a middle cavity and a plurality of edge cavities, the front end of the middle cavity is connected with the rear end of the core tube, and the rear end of the middle cavity is connected with a middle luer connector, so that the middle luer connector is communicated with the core tube through the middle cavity; the front end of each edge cavity channel is respectively connected with each edge balloon, and the rear end of each edge cavity channel is respectively connected with an edge luer connector, so that the edge luer connector is communicated with the edge balloons through the edge cavity channels. The size of the diameter of the balloon can be selectively expanded, the overall expansion diameter range is large, and the safety in the actual use process is higher.

Description

Balloon catheter capable of selectively expanding diameter

Technical Field

The utility model relates to the field of medical treatment, concretely relates to balloon catheter of alternative expansion diameter.

Background

With the development of society and the increasing life of people, the symptoms of the digestive tract, the respiratory tract and the large vessel stenosis of patients caused by various reasons are common, the medical drug therapy is mostly ineffective, the surgical operation is mainly adopted for the treatment, but the defects of large operation wound, more complications, long postoperative recovery time and the like exist, and the balloon dilatation operation becomes the mainstream mode for treating the stenosis due to small wound, small danger, small pain and quick recovery.

As shown in fig. 1, the conventional balloon catheter includes a balloon 10, a soft head 11, an outer tube 12, a core tube 13 and a handle 14 (a three-way member), after the front end of the core tube 13 penetrates out of the outer tube 12, the outer wall of the core tube 13 is hermetically connected with the front end of the balloon 10, the rear end of the balloon 10 is connected with the outer tube 12, the rear ends of the core tube 13 and the outer tube 12 are connected with the handle 14, the handle 14 is provided with a liquid injection hole and a guidewire hole, the liquid injection hole is communicated with the balloon 10 through the inner cavity of the outer tube 12, and the guidewire hole is communicated with the inner cavity of the core tube 13.

The balloon catheter with the structure only has one balloon, and can only be singly expanded, and the diameter range of the expanded balloon is smaller; because the diseased part and the diseased degree of the patient are different, the doctor is troublesome to select the balloon for operation.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the balloon catheter capable of selectively expanding the diameter is provided, and the problems that the conventional balloon catheter can only be singly expanded, and the expanded balloon diameter range is small, so that a doctor has small selectivity and is inconvenient to select and operate in the operation process are solved.

The utility model provides a technical scheme that its technical problem adopted is:

a balloon catheter of selectively expandable diameter is provided, comprising

The two ends of the central saccule are hermetically connected with the outer wall of the core tube, and the central saccule is communicated with the inner cavity of the core tube;

a plurality of edge balloons disposed circumferentially about the central balloon;

the front end soft head is respectively connected with the front end of the core tube and each edge balloon;

the multi-cavity tube is internally provided with a middle cavity and a plurality of edge cavities, the front end of the middle cavity is connected with the rear end of the core tube, and the rear end of the middle cavity is connected with a middle luer connector, so that the middle luer connector is communicated with the core tube through the middle cavity;

the front end of each edge cavity channel is respectively connected with each edge balloon, and the rear end of each edge cavity channel is respectively connected with an edge luer connector, so that the edge luer connector is communicated with the edge balloons through the edge cavity channels.

Furthermore, the center saccule and the edge saccule both adopt variable-diameter saccules.

Further, the reducing balloon is a conical balloon with a large distal end and a small proximal end.

Furthermore, the two ends of the core tube are respectively connected with the front end soft head and the multi-cavity tube in a welding mode.

Furthermore, the two ends of the edge saccule are respectively connected with the front end soft head and the multi-cavity tube by welding.

Further, the wire guiding mechanism is also included, and the wire guiding mechanism comprises

The three-way handle is adopted to replace a middle luer connector;

the guide wire tube penetrates through the middle cavity of the core tube and the multi-cavity tube, the front end of the guide wire tube is hermetically connected with the front soft head, the rear end of the guide wire tube is connected with the three-way handle, and the guide wire is inserted into the guide wire tube from a guide wire hole of the three-way handle and extends out of the front soft head.

The utility model has the advantages that:

the utility model discloses a sacculus pipe, every sacculus all can expand alone, can selective expansion sacculus diameter size, whole expansion diameter range is great, and the security in the in-service use process is higher. The reducing balloon structure can adapt to the expansion of a special structure of a human body, can play a role in plugging a cavity of the human body, and has better comprehensive performance.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

FIG. 1 is a schematic view of a conventional balloon catheter;

10, a balloon, 11, a soft head, 12, an outer tube, 13, a core tube, 14 and a handle;

FIG. 2 is a schematic view of a balloon catheter of the alternative expandable diameter of the embodiments;

FIG. 3 is a cross-sectional view of a multi-lumen tube;

FIG. 4 is a schematic view of a balloon catheter of the second embodiment having a selectively expandable diameter;

wherein, the first and the second end of the pipe are connected with each other,

2. a multi-lumen tube, 21, a middle lumen, 22, a peripheral lumen;

31. a central balloon, 32, an edge balloon;

41. a middle luer fitting, 42, an edge luer fitting;

5. a front end soft head;

6. and a core tube.

Detailed Description

The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.

Example one

As shown in FIG. 2 and FIG. 3, a balloon catheter with a selectively expandable diameter comprises

The two ends of the central balloon 31 are hermetically connected with the outer wall of the core tube 6, and the central balloon 31 is communicated with the inner cavity of the core tube 6;

a plurality of edge balloons 32 arranged circumferentially around the central balloon 31;

the front end soft head 5 is respectively connected with the front end of the core tube 6 and each edge balloon 32;

the multi-cavity tube 2 is internally provided with a middle cavity 21 and a plurality of edge cavity 22, the front end of the middle cavity 21 is connected with the rear end of the core tube 6, and the rear end of the middle cavity 21 is connected with a middle luer connector 41, so that the middle luer connector 41 is communicated with the core tube 6 through the middle cavity 21;

the front end of each edge channel 22 is connected to each edge balloon 32, and the back end of each edge channel 22 is connected to an edge luer 42, so that the edge luer 42 is communicated with the edge balloons 32 through the edge channels 22.

In this embodiment, the intermediate luer connector 41 and the edge luer connector 42 have the same structure, and as shown in fig. 2, have two open ends, one end is a liquid inlet, and the other end is a liquid outlet; liquid is injected into the central balloon 31 and the edge balloon 32 through liquid inlets of the middle luer joint 41 and the edge luer joint 42 respectively, so that the balloons are bulged to support human tissues.

In this embodiment, the central balloon 31 and the edge balloon 32 are balloons having a conventional structure, that is, a structure in which the side walls of the balloons are positioned in a cylindrical shape, or are referred to as non-variable diameter balloons.

Specifically, as an alternative embodiment in this embodiment, as shown in fig. 2 and fig. 3, two ends of the core tube 6 are respectively connected with the front soft head 5 and the multi-lumen tube 2 by welding; in particular, hot melting or ultrasonic welding is adopted.

Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 2 and fig. 3, two ends of the edge balloon 32 are respectively connected with the soft front end head 5 and the multi-lumen tube 2 by welding; specifically, hot melting or ultrasonic welding is adopted.

When the balloon catheter with the diameter capable of being selectively expanded is used, a doctor can selectively expand the balloon or expand the balloon as a whole according to needs, and the expansion diameter range is large. Such dilation can reduce trauma associated with lesions that do not require dilation. Meanwhile, the structure is composed of a plurality of edge balloons 32, compared with a common balloon catheter, the balloon catheter with the structure has the advantages that the bursting pressure is improved (the larger the balloon is, the smaller the bursting pressure is), and the safety in the practical use process can be improved.

Example two

As shown in fig. 4, the present embodiment is based on the first embodiment, and the differences are: the center balloon 31 and the edge balloon 32 of the present embodiment both use variable diameter balloons.

Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 4, the variable diameter balloon is a tapered balloon with a large distal end and a small proximal end.

When the balloon catheter capable of selectively expanding the diameter is used for operation, a doctor can control the expansion of each balloon at will, the diameter of the balloon can be selectively expanded, and the expansion diameter range is large. The balloon has a taper type large far end and a small near end, can adapt to the expansion of a special structure of a human body, and can play a role in plugging a cavity of the human body.

EXAMPLE III

The present embodiment is based on the first embodiment and the second embodiment, and the difference is that: the balloon catheter of this embodiment further comprises a guide wire mechanism comprising

A three-way handle, in this embodiment, the middle luer 41 needs to be replaced by the three-way handle;

the guide wire tube is arranged in the middle cavity 21 of the core tube 6 and the multi-cavity tube 2 in a penetrating mode, the front end of the guide wire tube is connected with the front end soft head 5 in a sealing mode, the rear end of the guide wire tube is connected with the three-way handle, and the guide wire is inserted into the guide wire tube from a guide wire hole of the three-way handle and extends out of the front end soft head 5.

In this embodiment, the three-way handle 14 is an existing component, and specifically, as shown in fig. 1, the three-way handle 14 includes a liquid inlet, a liquid outlet, and a guide wire inlet; the liquid inlet is connected with the middle cavity channel 21, and the guide wire insertion opening is connected with the rear end of the guide wire tube.

In operation, the balloon catheter of the present embodiment is inserted along the distal end of the guide wire under the monitoring of an endoscope or other auxiliary equipment, the balloon is fed to the stricture portion with a distance of 2 to 3cm for each movement, and it is confirmed that the two visualization markers are located at the respective ends of the stricture portion. And respectively and slowly injecting liquid into the saccule by using a pressure pump with a pressure gauge, and stopping pressurizing when working pressure is reached.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (6)

1. A balloon catheter capable of selectively expanding diameter is characterized by comprising

The two ends of the central saccule are hermetically connected with the outer wall of the core tube, and the central saccule is communicated with the inner cavity of the core tube;

a plurality of edge balloons disposed circumferentially about the central balloon;

the front end soft head is respectively connected with the front end of the core tube and each edge balloon;

the multi-cavity tube is internally provided with a middle cavity and a plurality of edge cavities, the front end of the middle cavity is connected with the rear end of the core tube, and the rear end of the middle cavity is connected with a middle luer connector so that the middle luer connector is communicated with the core tube through the middle cavity;

the front end of each edge cavity is respectively connected with each edge balloon, and the rear end of each edge cavity is respectively connected with an edge luer connector, so that the edge luer connectors are communicated with the edge balloons through the edge cavities.

2. The selectively expandable diameter balloon catheter of claim 1,

the center saccule and the edge saccule both adopt variable diameter saccules.

3. The selectively expandable diameter balloon catheter of claim 2,

the reducing saccule is a conical saccule with a large far end and a small near end.

4. The selectably expandable diameter balloon catheter according to claim 1,

and two ends of the core pipe are respectively connected with the front soft head and the multi-cavity pipe in a welding manner.

5. The selectively expandable diameter balloon catheter of claim 1,

and two ends of the edge balloon are respectively connected with the front end soft head and the multi-cavity tube in a welding manner.

6. The selectively expandable diameter balloon catheter of claim 1,

still include the seal wire mechanism, the seal wire mechanism includes

The three-way handle is adopted to replace a middle luer connector;

the guide wire tube penetrates through the middle cavity of the core tube and the multi-cavity tube, the front end of the guide wire tube is hermetically connected with the front soft head, the rear end of the guide wire tube is connected with the three-way handle, and the guide wire is inserted into the guide wire tube from a guide wire hole of the three-way handle and extends out of the front soft head.

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