Pulmonary nodule positioning puncture device capable of turning and positioning

Abstract

The utility model discloses a pulmonary nodule positioning puncture device capable of steering positioning, which comprises a handle and a puncture needle, the puncture needle is fixed in the handle, a pull rope is inserted in the puncture needle, the end part of the pull rope is provided with a positioning hook, the positioning hook is extruded in the puncture needle before use, the handle is provided with a positioning hole, and the positioning hole is communicated with the handle. The end of the handle is sleeved with a pushing device, the pushing device comprises an ejector pin, the ejector pin is located in the puncture needle and used for pushing out the pull rope and the positioning hook, the positioning hook deforms after being pushed out, the positioning hook comprises a bent hook, and the orientation of the deformed positioning hook is consistent with the orientation of the positioning hole. The pulmonary nodule positioning hook solves the problem that an existing positioning hook is prone to accidental injury during positioning, the positioning hole is formed in the handle, the orientation of the positioning hole and the orientation of the bent hook are located on the same side, the orientation of the positioning hole is adjusted by rotating the handle, the position of the positioning hook is further adjusted, and the positioning hook can accurately position pulmonary nodules.

Description

Technical Field

[0001] The utility model relates to the technical field of pulmonary nodule puncture, in particular to a pulmonary nodule positioning puncture device which can be steered and positioned. Background Art

[0002] When puncturing a lung nodule positioning puncture needle, a thimble is used to push the positioning hook out of the puncture needle. The positioning hook made of memory metal will be deformed after coming out of the puncture needle. The existing deformed positioning hook is generally cross-shaped, and the cross-shaped positioning hook is easy to hook other lung tissues and cause accidental injury. Therefore, in order to accurately position and avoid accidental injury by the positioning hook, a steerable lung nodule positioning puncture needle is designed. Utility Model Content

[0003] The purpose of the utility model is to provide a pulmonary nodule positioning and puncture device that can be steered and positioned. By opening a positioning hole on the handle, the direction of the positioning hole and the bending direction of the positioning hook are on the same side, and the direction of the positioning hook is adjusted by rotating the handle, so that positioning can be performed during positioning puncture, so that the positioning hook can accurately position the pulmonary nodule, thereby improving the accuracy of positioning and reducing accidental damage to other tissues by the positioning hook.

[0004] The utility model provides the following technical solutions: a pulmonary nodule positioning puncture device that can be steered and positioned, comprising a handle and a puncture needle, wherein the puncture needle is fixed in the handle, a pull rope is inserted in the puncture needle, and a positioning hook is provided at the end of the pull rope. Before use, the positioning hook is squeezed into the puncture needle, a positioning hole is provided on the handle, and a pushing device is sleeved on the end of the handle, wherein the pushing device comprises a thimble, and the thimble is located in the puncture needle and is used to push the pull rope and the positioning hook out. The positioning hook is deformed after being pushed out, and the positioning hook comprises a bent hook. The direction of the deformed positioning hook is consistent with the direction of the positioning hole.

[0005] In one embodiment, the positioning hook includes two curved hooks, the deformed curved hooks are distributed on the same section, and the orientation of the positioning hole is parallel to the section.

[0006] In one embodiment, the number of the hooks is three, and the three hooks are also distributed on the same section, and the angles between adjacent hooks are the same.

[0007] In order to control the extension and retraction of the ejector pin, the pushing device further comprises a pushing shell, which is connected to one end of the ejector pin and sleeved on one end of the handle.

[0008] In order to prevent misoperation that causes the positioning hook to extend prematurely for positioning, a limiting sleeve is sleeved on the end of the handle, and the diameter of the limiting sleeve is greater than or equal to the diameter of the pushing shell.

[0009] In order to determine the puncture depth of the puncture needle, a scale is provided on the puncture needle.

[0010] In order to realize automatic deformation after the hook is pushed out, the positioning hook is made of memory metal.

[0011] Compared with the prior art, the beneficial effects achieved by the present invention are: by opening a positioning hole on the handle, the orientation of the positioning hole and the orientation of the positioning hook are set on the same side, and the orientation of the positioning hole is adjusted by rotating the handle, and the orientation of the positioning hook in the puncture needle is further adjusted, and then the positioning hook is pushed out to deform the positioning hook to position the lung tissue, thereby reducing the positioning area. At the same time, the position of the positioning hook can be rotated to adjust the position, thereby improving the accuracy of positioning. Compared with traditional positioning hooks, it reduces accidental injuries to other parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a bottom view of the overall structure of the utility model;

[0014] Figure 2 This is a front view of the positioning hook of the first embodiment of the present utility model;

[0015] Figure 3 This is a front view of the positioning hook of the second embodiment of the present utility model;

[0016] Figure 4 This is a front view of the positioning hook of the third embodiment of the present utility model;

[0017] In the figure: 1. Push shell; 2. Ejector pin; 3. Puncture needle; 31. Scale; 4. Handle; 41. Positioning hole; 5. Pull rope; 6. Positioning hook; 61. Bend hook; 7. Limit sleeve. DETAILED DESCRIPTION

[0018] 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. Example

[0019] See also Figure 1 and Figure 2When the needle 3 is pushed out, the needle 3 is pulled out of the way and the positioning hook 6 is lifted up, so that the needle 3 can be pushed out of the way and the positioning hook 6 is lifted up.

[0020] The pushing device also includes a pushing shell 1, which is connected to one end of the ejector pin 2. The pushing shell 1 is sleeved on one end of the handle 4. By moving the pushing shell 1 back and forth, the extension and retraction of the ejector pin 2 is controlled to push the positioning hook 6.

[0021] A limiting sleeve 7 is also sleeved on the end of the handle 4. The diameter of the limiting sleeve 7 is greater than or equal to the diameter of the pushing shell 1. The limiting sleeve 7 is buckled on the end of the handle 4 before use to limit the position of the pushing shell 1, avoiding misoperation that causes the pushing shell 1 to be pushed prematurely, so that the positioning hook 6 can position other tissues in the body.

[0022] The puncture needle 3 is provided with a scale 31 , and the puncture depth of the puncture needle 3 can be determined by the scale 31 to ensure that the positioning hook 6 punctures in place.

[0023] Example 2

[0024] like Figure 3 As shown, in this embodiment, the positioning hook 6 includes two curved hooks 61. The deformed curved hooks 61 are all distributed on the same cross-section. The ends of the curved hooks 61 are all connected to the same pull rope 5. The orientation of the positioning hole 41 is parallel to the cross-section, which reduces the hook area of ​​the positioning hook 61, improves the positioning accuracy, and reduces damage to the lungs.

[0025] Example 3

[0026] like Figure 4 As shown, in this embodiment, there are three hooks 61, and the three hooks 61 are also distributed on the same section. The angle between adjacent hooks 61 is 15 degrees, which reduces the hooking area of ​​the positioning hook 61 and reduces damage to the lungs.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A steerable and positionable lung nodule localization and puncture device, comprising a handle and a puncture needle, wherein the puncture needle is fixed in the handle, characterized in that: A pull rope is inserted into the puncture needle, and a positioning hook is provided at the end of the pull rope. Before use, the positioning hook is squeezed into the puncture needle. A positioning hole is provided on the handle, and a pushing device is provided on the end of the handle. The pushing device includes a thimble, and the thimble is located in the puncture needle and is used to push the pull rope and the positioning hook out. The positioning hook is deformed after being pushed out, and the positioning hook includes a bent hook. The direction of the deformed positioning hook is consistent with the direction of the positioning hole.

2. The steerable pulmonary nodule localization and puncture device according to claim 1, characterized in that: The positioning hook comprises two curved hooks, and the deformed curved hooks are distributed on the same section, and the orientation of the positioning hole is parallel to the section.

3. The steerable pulmonary nodule localization and puncture device according to claim 1, characterized in that: There are three hooks, which are also distributed on the same section, and the angles between adjacent hooks are the same.

4. The steerable pulmonary nodule positioning and puncture device according to claim 1, characterized in that: The pushing device further comprises a pushing shell, which is connected to one end of the ejector pin and sleeved on one end of the handle.

5. The steerable and positionable lung nodule positioning and puncture device according to claim 4, characterized in that: A limiting sleeve is sleeved on the end of the handle, and the diameter of the limiting sleeve is greater than or equal to the diameter of the pushing shell.

6. The steerable and positionable lung nodule positioning and puncture device according to claim 1, characterized in that: The puncture needle is provided with a scale.

7. The steerable and positionable lung nodule localization and puncture device according to claim 1, characterized in that: The positioning hook is made of memory metal.

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