Isolation balloon with positioning function

Abstract

The utility model relates to the technical field of medical equipment, in particular to an isolation balloon with a positioning function. Comprising a handle and an outer needle tube connected with the handle, a diagonal plane facilitating puncture is arranged at the front end, away from the handle, of the outer needle tube, a penetrating type channel is formed in the handle and communicated with the outer needle tube, and an injection channel is formed in one side of the handle and connected with a Luer connector through a hose. The single-cavity catheter is arranged in the outer needle tube, a balloon is arranged at one end of the single-cavity catheter, and the end, close to the balloon, of the single-cavity catheter is closed. When the catheter is used for ablation isolation, due to the fact that the outer needle tube is made of hard materials, compared with a traditional balloon isolation catheter, puncture is more convenient, and for hard tissue organs, puncture and balloon imbedding are easier; when the positioning needle is used for lung positioning, compared with a traditional balloon positioning needle, the liquid injection function is added, coloring agents can be injected, the accuracy of lung positioning is improved, and treatment means are increased.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and in particular to an isolation balloon with a positioning function. Background Art

[0002] Ablation technology is primarily used in tumor treatment. It uses an ablation needle to penetrate the tumor directly, killing tumor cells through microwaves or radiofrequency. However, ablation is a double-edged sword, with a certain probability of damaging normal tissue. Therefore, an isolation and protection device is needed to separate and protect normal tissue from diseased tissue, preventing damage to normal tissue by the ablation technique and providing a buffer between the diseased and normal tissues, achieving the goal of completing the ablation procedure while protecting normal tissue.

[0003] In the existing technology, balloons are mostly used to separate normal tissues from diseased tissues. However, due to the variety of diseased tissues in the human body, for more complex parts such as human organs, the balloon catheter is difficult to insert and puncture due to the soft texture of the catheter.

[0004] Therefore, the present invention provides an isolation balloon with positioning function to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the present invention is that in the prior art, balloons are mostly used to separate normal tissues from diseased tissues. However, due to the variety of diseased tissues in the human body, for complex parts such as human organs, the balloon catheter is difficult to insert and puncture due to the soft texture of the catheter.

[0006] The utility model provides the following technical solutions: an isolation balloon with a positioning function, comprising a handle and an outer needle tube connected to the handle, wherein the outer needle tube is provided with an oblique cut surface for puncture at the front end away from the handle, a through-type channel is provided inside the handle and is connected to the outer needle tube, an injection liquid channel is provided on one side of the handle, and the injection liquid channel is connected to the Luer connector through a hose; and further comprising a single-lumen catheter arranged in the outer needle tube, one end of the single-lumen catheter being provided with a balloon and the end of the single-lumen catheter close to the balloon being closed.

[0007] Preferably, one end of the single-lumen catheter with the balloon is arranged in the outer needle tube, and the other end of the single-lumen catheter extends outside the handle and is temporarily fixed to the handle.

[0008] Preferably, a gap for the injection liquid to flow is provided between the single-lumen catheter and the outer needle tube and is connected to the injection liquid channel.

[0009] Preferably, the outer needle tube is made of hard material.

[0010] Preferably, the single-lumen catheter is provided with a development mark at one end of the balloon for easy observation under ultrasound.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1. The utility model sets the outer needle tube to a hard material and adds an injection liquid channel. When used for ablation isolation, the hard material of the outer needle tube makes it easier to puncture than the traditional balloon isolation catheter, and it is easier to puncture and insert the balloon for harder tissues and organs; when used for lung positioning, compared with the traditional balloon positioning needle, it adds an injection function and can inject dyes, thereby improving the accuracy of lung positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of Example 2 of the present utility model;

[0016] Figure 3 This is a schematic diagram of Example 3 of the present utility model;

[0017] Figure 4 This is a schematic diagram of Example 4 of the present utility model.

[0018] In the figure: 1. handle; 2. outer needle tube; 3. injection liquid channel; 4. hose; 5. Luer connector; 6. single-lumen catheter; 7. balloon. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the utility model for which protection is sought, but merely represents part of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and "back" and the like indicate positions or locations based on the positions or locations shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. Such terms are used solely to facilitate the description of this utility model and to simplify the description. They are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] The embodiments disclosed herein aim to solve the problem that balloons are often used to isolate normal tissues and diseased tissues in the prior art. However, due to the variety of diseased tissues in the human body, for more complex parts such as human organs, the balloon catheter is difficult to insert and puncture due to the soft texture of the catheter. In view of this, the embodiments disclosed herein propose an isolation balloon with positioning function. By making the outer needle tube of hard material and adding an injection liquid channel, when used for ablation isolation, the outer needle tube is made of hard material, which makes it easier to puncture than traditional balloon isolation catheters. For harder tissues and organs, it is easier to puncture and insert the balloon. When used for lung positioning, compared with traditional balloon positioning needles, it has an injection function and can inject dyes, which improves the accuracy of lung positioning and adds a new treatment method.

[0024] Specific embodiment 1: Figure 1As shown, an isolation balloon with a positioning function includes a handle 1 and an outer needle tube 2 connected to the handle 1, wherein the front end of the outer needle tube 2 away from the handle 1 is provided with an oblique section for puncture convenience, a through channel is provided inside the handle 1 and is connected to the outer needle tube 2, an injection liquid channel 3 is provided on one side of the handle 1, and the injection liquid channel 3 is connected to the Luer connector 5 through a hose 4; it also includes a single-lumen catheter 6 arranged on the outer needle tube 2, one end of the single-lumen catheter 6 is provided with a balloon 7, and the end of the single-lumen catheter 6 close to the balloon 7 is closed and provided with a development mark for easy observation under ultrasound, and the end of the single-lumen catheter 6 away from the balloon is provided with a guide joint to facilitate filling the balloon.

[0025] By setting the outer needle tube 2 to a hard material and adding an injection liquid channel, when used for ablation isolation, due to the hard material of the outer needle tube 2, it is easier to puncture than the traditional balloon 7 isolation catheter, and it is easier to puncture and insert the balloon 7 for harder tissues and organs; when used for lung positioning, compared with the traditional balloon positioning needle, it has an injection function and can inject dyes, which improves the accuracy of lung positioning and adds a new treatment method; at the same time, the end of the single-lumen catheter 6 close to the balloon 7 is closed and provided with a development mark for easy observation under ultrasound, and the end away from the balloon 7 is provided with a one-way valve and a guide joint. This design is adopted to prevent the liquid in the balloon 7 from flowing back and to facilitate filling the balloon.

[0026] like Figure 1 As shown, one end of the single-lumen catheter 6 with the balloon 7 is disposed within the outer needle tube 2. This placement of the balloon 7 within the outer needle tube 2 is used to simultaneously move the single-lumen catheter 6 and the balloon 7 to the lesion location during puncture by the outer needle tube 2 without affecting the puncture operation of the needle tube. The other end of the single-lumen catheter 6 extends outside the handle 1. This extension facilitates the operator's control of the single-lumen catheter 6 for the next step after the outer needle tube 2 has driven the single-lumen catheter 6 to the designated location. The catheter is temporarily fixed to the handle 1 to allow the outer needle tube 2 to drive the single-lumen catheter 6 to the lesion location.

[0027] like Figure 1 As shown, a gap for injection liquid to flow is provided between the single-lumen catheter 6 and the outer needle tube 2 and is connected to the injection liquid channel 3. The above design is suitable for injecting normal saline through the injection liquid channel 3 during use. The normal saline flows through the injection liquid channel 3 and the gap between the single-lumen tube and the outer needle tube 2, and flows out through the tip of the outer needle tube 2. The normal tissue and the diseased tissue are first isolated by the normal saline to form a safe gap.

[0028] like Figure 1 As shown, the outer needle tube 2 is made of hard material. The outer needle tube 2 is made of hard material and is suitable for organs with a harder texture, making it easier to puncture and insert the balloon 7.

[0029] The working process when used as an ablation isolation balloon is as follows: when it is necessary to ablate the diseased tissue, the isolation balloon in the initial state is punctured through the outer needle tube 2 to the point close to the connection between the diseased tissue and the normal tissue, and physiological saline is injected through the injection channel 3. The physiological saline flows through the injection channel 3 and the gap between the single-lumen tube and the outer needle tube 2, and flows out through the tip of the outer needle tube 2. The physiological saline is first used to isolate a safety gap between the normal tissue and the diseased tissue, and then the outer needle tube 2 is further inserted into the safety gap. Thereafter, the outer needle tube 2 is withdrawn relative to the single-lumen catheter 6, so that the balloon 7 leaks out of the outer needle tube 2 and is located between the normal tissue and the diseased tissue to isolate the normal tissue and the diseased tissue, and avoid accidental injury to the normal tissue during the ablation process. Compared with traditional isolation balloons, the isolation balloon uses a hard outer needle tube 2 for puncture, which is easier to puncture and insert the balloon 7 for organ parts with a harder texture.

[0030] The working process when used as a lung nodule positioning needle is as follows: when lung tissue needs to be positioned, the isolation balloon in the initial state is punctured into the diseased tissue through the outer needle tube 2, and then a dye solution is injected through the injection liquid channel 3. The dye solution flows through the injection liquid channel 3 and the gap between the single-lumen tube and the outer needle tube 2, and flows into the diseased tissue through the tip of the outer needle tube 2 to act as a dye mark. Thereafter, the outer needle tube 2 is withdrawn relative to the single-lumen catheter 6, so that the balloon 7 leaks out of the outer needle tube 2. The balloon is located in the diseased tissue to complete positioning, and then the outer needle tube 2 is completely pulled out to facilitate subsequent surgery. Compared with the traditional balloon positioning needle, this method adds a medical Luer interface (injection liquid channel), which adds new treatment methods to the balloon positioning needle, such as injecting dye solution through the injection liquid channel to improve the accuracy of locating lung diseased tissue.

[0031] Specific embodiment 2: Figure 2 As shown, the difference between this embodiment and embodiment 1 is the handle structure design, which eliminates the hose on the injection channel.

[0032] Specific embodiment three: Figure 3 As shown, the difference between this embodiment and embodiment 1 lies in the handle structure design, the hose on the injection channel is eliminated, and the angle design between the injection channel and the handle body is changed.

[0033] Specific embodiment four: Figure 4 As shown, the difference between this embodiment and embodiment 1 lies in the handle structure design, the hose on the injection channel is eliminated, and the angle design between the injection channel and the handle body is changed.

[0034] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An isolation balloon with a positioning function, comprising a handle (1) and an outer needle tube (2) connected to the handle (1), wherein the outer needle tube (2) is provided with an oblique cut surface for puncture convenience at the front end away from the handle (1), a through-type channel is provided inside the handle (1) and is connected to the outer needle tube (2), an injection liquid channel (3) is provided on one side of the handle (1), and the injection liquid channel (3) is connected to a Luer connector (5) through a hose (4); characterized in that, It also includes a single-lumen catheter (6) arranged in the outer needle tube (2), one end of the single-lumen catheter (6) is provided with a balloon (7), and the end of the single-lumen catheter (6) close to the balloon (7) is closed.

2. The isolation balloon with positioning function according to claim 1, characterized in that: One end of the single-lumen catheter (6) having a balloon (7) is disposed in the outer needle tube (2), and the other end of the single-lumen catheter (6) extends outside the handle (1) and is temporarily fixed to the handle (1).

3. The isolation balloon with positioning function according to claim 2, characterized in that: A gap for the injection liquid to flow is provided between the single-lumen catheter (6) and the outer needle tube (2), and the gap is connected to the injection liquid channel (3).

4. The isolation balloon with positioning function according to claim 3, characterized in that: The outer needle tube (2) is made of hard material.

5. The isolation balloon with positioning function according to claim 1, characterized in that: One end of the single-lumen catheter (6) located on the balloon (7) is provided with a development mark for easy observation under ultrasound.

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