Balloon type lung positioning needle

Abstract

The utility model relates to the technical field of medical instruments, in particular to a balloon type lung positioning needle which comprises an outer needle tube, a needle tip is arranged at one end of the outer needle tube, and an outer needle handle is connected to the other end of the outer needle tube; the end, away from the outer needle tube, of the outer needle handle is connected with a Luer cap. An inner tube is placed in the outer needle tube; one end, close to the needle tip, of the inner tube is provided with a balloon, and the end, close to the Luer cap, of the inner tube is provided with a control valve; the balloon type positioning anchor can be switched between an expansion state and a compression state, can be positioned in the tissue, is also beneficial to recovery, and does not cause secondary damage to the tissue. In addition, through the arrangement of a sealing ring, in the puncture process, the gap between the outer needle tube and the inner tube is relatively sealed, air is prevented from entering lung tissue to form pneumothorax, and use is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a balloon-type lung positioning needle. Background Art

[0002] With the development of imaging diagnosis technology, the discovery of early lung lesions has become earlier and easier, and the detection rate of pulmonary nodules requiring surgical treatment has also become easier. Generally, preoperative localization is carried out when removing lung lesion tissues less than 1 cm, that is, percutaneous puncture under CT guidance is used to localize pulmonary nodules; positioning needles are mostly used for preoperative localization, and a metal wire with a positioning hook at its end is used as a positioning anchor.

[0003] The traditional positioning needle is composed of a puncture needle, an anchoring positioning needle, a positioning wire and a pushing device, and can achieve good positioning effect. However, the applicant found in clinical practice that when the existing lung positioning needle is used for lung tissue positioning, if the positioning deviates or it is difficult to remove the positioning needle after positioning, because the positioning hook at the end of the positioning needle is made of metal wire and is relatively firm after pushing into the tissue for positioning, pulling it out manually will cause secondary injuries such as tissue bleeding. If it is removed through surgical opening, it will also increase the patient's pain and medical costs. Therefore, developing a lung positioning needle that is easy to position and easy to remove has become a more urgent need clinically.

[0004] In view of this, in order to overcome the above technical problems, the utility model designs and develops a balloon-type lung positioning needle to solve the above technical problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art, the utility model provides a balloon-type lung positioning needle, which solves the technical problem that the positioning needle is not easy to remove after positioning in the tissue in the prior art.

[0006] The technical solution adopted by the utility model to solve its technical problems includes: an outer needle tube; one end of the outer needle tube is provided with a needle tip, and the other end is connected with an outer needle handle; the end of the outer needle handle away from the outer needle tube is connected with a Luer cap;

[0007] An inner tube is placed inside the outer needle tube; a balloon is arranged at one end of the inner tube close to the needle tip, and the other end penetrates through the outer needle handle and the Luer cap; a control valve is installed at the end of the inner tube close to the Luer cap.

[0008] Preferably, the inside of the outer needle handle is provided with a cavity, and a sealing ring is placed inside the cavity.

[0009] Preferably, a developing ring is installed at the end of the inner tube close to the balloon.

[0010] In summary, the utility model has the following beneficial effects: Compared with the traditional positioning anchor provided with a metal wire, the positioning anchor of the utility model can be transformed between the expanded state and the compressed state, can be positioned in the tissue, is also conducive to recovery, and will not cause secondary damage to the tissue. In addition, through the setting of the sealing ring, during the puncture process, the gap between the outer needle tube and the inner tube is relatively sealed, preventing air from entering the lung tissue and forming pneumothorax, making it safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0012] Figure 1 is a perspective view of the present utility model;

[0013] Figure 2 is a disassembled schematic diagram of the present utility model;

[0014] Figure 3 is a partial cross-sectional view of the present utility model;

[0015] In the figure: outer needle tube 1, needle tip 11, outer needle handle 2, Luer cap 3, inner tube 4, balloon 5, control valve 6, sealing ring 7, imaging ring 8. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the claimed present utility model, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0017] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0018] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. Such terms are only used to facilitate the description of the present utility model and simplify the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model.

[0019] It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figures 1-3 As shown, it includes: an outer needle tube 1 is provided with a needle tip 11 at one end, and an outer needle handle 2 is fixedly connected to the other end; the end of the outer needle handle 2 away from the outer needle tube 1 is spirally connected to a Luer cap 3; an inner tube 4 is placed inside the outer needle tube 1; a balloon 5 is provided at one end of the inner tube 4 close to the needle tip 11, and the other end passes through the outer needle handle 2 and the Luer cap 3; a control valve 6 is fixedly installed at the end of the inner tube 4 close to the Luer cap 3; liquid or gas is injected into the balloon 5 through the control valve 6, so that the balloon 5 is inflated so as to be positioned in the tissue.

[0021] like Figure 3 As shown, the outer needle handle 2 is provided with a cavity inside, and a sealing ring 7 is placed inside the cavity. When the Luer cap 3 is screwed onto the outer needle handle 2, the Luer cap 3 will squeeze the sealing ring 7, thereby sealing the gap between the inner tube 4 and the outer needle tube 1 to prevent the organ tissue from being connected to the outside air during puncture.

[0022] A developing ring 8 is fixedly mounted on the end of the inner tube 4 close to the balloon 5; the design of the developing ring 8 facilitates observation under imaging.

[0023] In the embodiment, before puncture, the medical staff pulls back the end of the inner tube 4 close to the Luer cap 3, so that the end of the inner tube 4 close to the balloon 5 is completely contracted into the outer needle tube 1; then the control valve 6 is opened to inject liquid or gas into the balloon 5 to expand the balloon 5; after expansion, the balloon 5 will be squeezed and non-permanently fixed to the inner wall of the outer needle tube 1.

[0024] After the inner tube 4 finishes shrinking, puncture through the tip 11 part of the outer needle tube 1; in the initial state of puncture, under the image guidance of the imaging ring 8, puncture the outer needle tube 1 into the diseased tissue.

[0025] When puncturing into the diseased tissue, first open the control valve 6 to extract the gas or liquid in the balloon 5, so that one end of the inner tube 4 close to the balloon 5 can be pushed out from the inside of the outer needle tube 1. After the gas or liquid in the balloon 5 is extracted, close the control valve 6, and then by pushing one end of the inner tube 4 close to the Luer cap 3, push the end of the inner tube 4 close to the balloon 5 out of the outer needle tube 1 into the diseased tissue. Then open the control valve 6 and inject gas or liquid into the balloon 5 to make the balloon 5 in an inflated state, completing the positioning operation of the outer needle tube 1.

[0026] When the operation is completed or the positioning deviates and needs to be removed, extract the gas or liquid in the balloon 5 to make the balloon 5 shrink into the outer needle tube 1, and then pull out the outer needle tube 1.

[0027] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A balloon (5) type lung positioning needle, characterized in that: include: An outer needle tube (1), wherein one end of the outer needle tube (1) is provided with a needle tip (11), and the other end is connected to an outer needle handle (2); an end of the outer needle handle (2) away from the outer needle tube (1) is connected to a Luer cap (3); An inner tube (4) is placed inside the outer needle tube (1); a balloon (5) is provided at one end of the inner tube (4) close to the needle tip (11), and the other end passes through the outer needle handle (2) and the Luer cap (3); a control valve (6) is installed at the end of the inner tube (4) close to the Luer cap (3).

2. A balloon (5) type lung positioning needle according to claim 1, characterized in that: The interior of the outer needle handle (2) is provided with a cavity, and a sealing ring (7) is placed inside the cavity.

3. A balloon (5) type lung positioning needle according to claim 1, characterized in that: A developing ring (8) is installed at the end of the inner tube (4) close to the balloon (5).

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