Disposable pulmonary nodule positioning needle

Abstract

The utility model discloses a disposable pulmonary nodule locating needle, and particularly relates to the field of medical instrument accessories, the disposable pulmonary nodule locating needle comprises a puncture needle, a push tube, locating needle assemblies, a buckle and a protection tube, the push tube is embedded in one end of the puncture needle, the buckle is installed on the push tube, a set of locating needle assemblies is placed in the puncture needle, and the protection tube is connected with the locating needle assemblies. The puncture needle is sleeved with a set of protection tubes used for protection. According to the utility model, the riveting process is added, so that the positioning line and the positioning needle head are firmly and fixedly connected together, the positioning line and the positioning needle head can bear a tensile force of 50N and are not separated, and compared with a medical glue or other fixing mode, the safety is qualitatively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical device accessories, and more specifically, to a disposable lung nodule positioning needle. Background Art

[0002] The disposable lung nodule positioning needle consists of a puncture needle and a positioning wire inside the needle tube, which can accurately locate small lung nodules.

[0003] The positioning needle is inserted into the small nodule under CT positioning. When the puncture needle tube is withdrawn, the hook is released and the nodule is firmly hooked, just like a fishhook firmly hooks a fish. The doctor can clearly see the lesion site under the thoracoscope and remove the nodule.

[0004] Currently, most positioning pins on the market have the problem of being unhooked or unable to be pushed out during use, which increases the hidden dangers during the use of the product. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a disposable lung nodule locating needle to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a disposable lung nodule positioning needle, comprising a puncture needle, a push tube, a positioning needle assembly, a buckle, and a protective tube. One end of the puncture needle is embedded with a push tube, a buckle is installed on the push tube, a group of positioning needle assemblies are placed inside the puncture needle, and the outside of the puncture needle is provided with a group of protective tubes for protection.

[0007] As a further improvement of the technical solution of the present utility model, the positioning needle assembly includes a positioning line, one end of the positioning line is provided with a positioning needle head, and the other end of the positioning line is provided with a color label strip.

[0008] As a further improvement of the technical solution of the present invention, the color label strip on the positioning line extends to the port of the puncture needle.

[0009] As a further improvement of the technical solution of the present invention, the positioning needle is made of nickel-titanium material, wherein the positioning wire and the positioning needle are connected together by riveting.

[0010] As a further improvement of the technical solution of the present invention, the positioning needle can automatically release the hook component after losing the restraining force, thereby grabbing the nodule.

[0011] As a further improvement to the technical solution of the present invention, the puncture needle and the push tube are assembled by snap-fitting to avoid accidental pushing.

[0012] As a further improvement of the technical solution of the present invention, there is a certain gap between the inner wall of the puncture needle and the outer wall of the pushing tube.

[0013] The technical effects and advantages of this utility model are:

[0014] The utility model uses the riveting process to firmly connect the positioning wire and the positioning needle together, and can withstand a pulling force of 50N without separation. Compared with medical glue or other fixing methods, it has a qualitative improvement in safety.

[0015] A color label strip with obvious color difference is added at a fixed distance at the end of the positioning line. It is also easier to judge the status of the anchor hook positioning needle in the puncture needle tube during assembly. It is also easier to judge whether the positioning needle assembly is in a safe state before use, avoiding misoperation during use, thereby improving the safe use of the instrument and further improving surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 This is a structural diagram of the positioning needle assembly in the present utility model.

[0018] Figure 3 This is an explosion diagram of the utility model.

[0019] Figure 4 This is a schematic structural diagram of the color label strip in the present utility model.

[0020] Figure 5 This is a schematic diagram of the state when the protective tube of the utility model is disassembled.

[0021] Figure 6 This is a schematic diagram of the state after the buckle in the utility model is removed.

[0022] Figure 7 This is a schematic diagram of the state of the push tube in the present invention when pushing.

[0023] Figure 8 This is a schematic diagram of the structure after the push tube in the utility model is taken out.

[0024] The reference numerals are: puncture needle 1 , push tube 2 , positioning needle assembly 3 , positioning line 31 , positioning needle head 32 , color label strip 33 , buckle 4 , and protective tube 5 . DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] As attached Figure 1 -Attached Figure 8 The disposable lung nodule positioning needle shown includes a puncture needle 1, a push tube 2, a positioning needle assembly 3, a buckle 4 and a protective tube 5. One end of the puncture needle 1 is embedded with the push tube 2, and the buckle 4 is installed on the push tube 2. A group of positioning needle assemblies 3 are placed inside the puncture needle 1, and a group of protective tubes 5 for protection are provided on the outside of the puncture needle 1.

[0027] like Figure 2 As shown, the positioning needle assembly 3 includes a positioning line 31 , a positioning needle 32 is provided at one end of the positioning line 31 , and a color label strip 33 is provided at the other end of the positioning line 31 .

[0028] like Figure 2 As shown, the color label strip 33 on the positioning line 31 extends to the end of the puncture needle 1.

[0029] As a further improvement of the technical solution of the present invention, the positioning needle 32 is made of nickel-titanium material, wherein the positioning wire 31 and the positioning needle 32 are connected together by riveting.

[0030] like Figure 2 As shown, the positioning needle 32 can automatically release the hook component after losing the restraining force, thereby grabbing the nodule.

[0031] like Figure 1 As shown, the puncture needle 1 and the pushing tube 2 are assembled by a snap 4 to avoid the occurrence of accidental pushing.

[0032] like Figure 1 As shown, there is a certain gap between the inner wall of the puncture needle 1 and the outer wall of the pushing tube 2.

[0033] Working principle of this utility model:

[0034] This design is a disposable pulmonary nodule localization needle, which includes a puncture needle 1, a push tube 2, a localization needle assembly 3, a buckle 4, and a protective tube 5. The rivet pressing process is used to firmly fix the localization wire 31 and the localization needle head 32 together, and can withstand a tensile force of 50N without detaching. Compared with medical glue or other fixing methods, the safety is significantly improved.

[0035] A color label strip 33 with a distinct color difference is added at a fixed distance from the tail end of the positioning line 31, which makes it easier to determine the state of the anchor hook positioning needle in the puncture needle tube during assembly. It is also easier to determine whether the positioning needle assembly is in a safe state before use, thereby avoiding misoperation during use, thereby improving the safe use of the instrument and further improving surgical efficiency.

[0036] When using the positioning needle, you need to first open the protective tube 5 and pull out the buckle 4 to lose the binding force between the puncture needle 1 and the push tube 2. Check the color label strip 33. When the puncture needle 1 is inserted into the nodule position in the patient's body, push the push tube 2 inward. When it is pushed to the designated position, the push tube 2 can be pulled out, and then the puncture needle 1 is pulled out. At this point, keep the positioning needle assembly 3 to hook the nodule position.

[0037] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0038] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0039] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A disposable pulmonary nodule localization needle, comprising a puncture needle (1) and a push tube (2), characterized in that: One end of the puncture needle (1) is embedded with a push tube (2), a buckle (4) is installed on the push tube (2), a group of positioning needle components (3) are placed inside the puncture needle (1), and a group of protective tubes (5) for protection are provided on the outside of the puncture needle (1); The positioning needle assembly (3) includes a positioning line (31), one end of the positioning line (31) is provided with a positioning needle (32), and the other end of the positioning line (31) is provided with a color label strip (33); The positioning line (31) and the positioning needle (32) are connected together by riveting.

2. The disposable pulmonary nodule localization needle according to claim 1, characterized in that: The color label strip (33) on the positioning line (31) extends to the port of the puncture needle (1).

3. The disposable pulmonary nodule localization needle according to claim 1, characterized in that: The positioning needle (32) is made of nickel titanium.

4. The disposable pulmonary nodule localization needle according to claim 1, characterized in that: The positioning needle (32) can automatically release the hook component after losing the restraining force, thereby grabbing the nodule.

5. The disposable pulmonary nodule localization needle according to claim 1, characterized in that: The puncture needle (1) and the pushing tube (2) are assembled by snapping together with a buckle (4) to avoid the occurrence of mis-pushing.

6. The disposable pulmonary nodule localization needle according to claim 1, characterized in that: There is a certain gap between the inner wall of the puncture needle (1) and the outer wall of the push tube (2).

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