Small-focus lung cancer tissue fixator

Abstract

The utility model discloses a small-focus lung cancer tissue fixator which comprises a fixing support and a fixing set. The fixing support comprises a frame and a rotating shaft. At least two rotating shafts are fixedly connected to the interior of the frame; the fixing assembly comprises a rotating sleeve and a crochet hook; the rotating sleeve is sleeved on the rotating shaft; the number of the rotating sleeves is the same as that of the rotating shafts; the crochet hooks are linearly arranged on the outer wall of the rotating sleeve in the axis direction of the rotating sleeve. The device has the beneficial effects that after the small-focus lung cancer tissue is cut open, the puncture section of the crochet hook is inserted into the periphery of the lung cancer tissue, and then the rotating sleeve is rotated, so that the focus tissue is stretched under the pulling of the arc-shaped limiting structure, the peripheral lung tissue is prevented from extruding the focus, the focus tissue is clear and visible, and the misdiagnosis probability is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a tissue fixation device for small lesions of lung cancer. Background Technology

[0002] Ground-glass opacities in the lungs are a radiographic finding, referring to high-density shadows with well-defined or poorly defined borders. They could be caused by three conditions: inflammation, benign tumors, or malignant tumors. The severity depends on the examination results.

[0003] With the increasing number of ground-glass nodules in the lungs, after surgical resection, they are sent to the pathology department for examination. These small lung cancer lesions are typically less than 1 cm in size. For larger lung cancer lesions, because the tumor has less sclerotic stroma and sufficient self-support, after being cut and fixed in a book-like manner, it will not be compressed by the surrounding lung tissue due to its own weight. Conversely, small lung cancer lesions are often adenocarcinoma in situ or minimally invasive adenocarcinoma. These types of cancer mainly grow apical, with a very narrow stroma, which becomes loose and edematous if it widens. When small lung cancer lesions are cut and fixed, the lesion is compressed by the gravity of the surrounding lung tissue, reducing the space within the alveolar cavity and thus affecting diagnosis. It is easy to misdiagnose rapidly growing carcinoma in situ as minimally invasive carcinoma, and vice versa.

[0004] This invention addresses the aforementioned problems by providing a tissue fixation device for small lung cancer lesions. Utility Model Content

[0005] In order to overcome the problems mentioned in the background art, this utility model provides a fixator for small lesion lung cancer tissue.

[0006] A fixation device for small lung cancer lesions includes a fixation bracket and a fixation assembly; the fixation bracket includes a frame and a rotating shaft; at least two rotating shafts are fixedly connected inside the frame; the fixation assembly includes a rotating sleeve and hooks; the rotating sleeve is sleeved on the rotating shaft; the number of rotating sleeves is the same as the number of rotating shafts; the hooks are arranged in a straight line along the axis of the rotating sleeve on the outer wall of the rotating sleeve.

[0007] Furthermore, the fixing component also includes a limiting structure; one end of the limiting structure passes through the rotating sleeve and abuts against the rotating shaft.

[0008] Furthermore, the hook includes a piercing section and a pulling section; one end of the pulling section is fixedly connected to the piercing section, and the other end is fixedly connected to the rotating sleeve.

[0009] Furthermore, the end of the puncture segment furthest from the pulling segment is a sharp end.

[0010] Furthermore, the stretching section has an arc-shaped structure.

[0011] Furthermore, the fixed bracket also includes a support arm and a base; one end of the support arm is connected to the frame, and the other end is connected to the base.

[0012] Furthermore, the plane containing the frame is parallel to the plane containing the base.

[0013] Furthermore, the frame is a rectangular frame.

[0014] Furthermore, the length of the rotating shaft is equal to that of the rotating sleeve.

[0015] Furthermore, the length of the hook is less than the length of the rotating sleeve.

[0016] The beneficial effects of this invention are as follows: After cutting open small lung cancer lesions, the puncture section of a hook needle is inserted around the lung cancer tissue. Then, rotating the sleeve causes the lesion tissue to open under the pull of the arc-shaped limiting structure, preventing the surrounding lung tissue from compressing the lesion and making the lesion tissue clearly visible, reducing the chance of misdiagnosis. The lesion tissue opens under the pull of the arc-shaped limiting structure; rotating the sleeve allows different parts of the limiting structure to contact the lesion tissue. Different sizes of lesions can be opened to an appropriate degree according to needs, making the fixator suitable for lesions of various sizes. Attached Figure Description

[0017] Figure 1 A perspective view of a small lesion lung cancer tissue fixation device that implements this utility model;

[0018] Figure 2 This is a top view of a small lesion lung cancer tissue fixation device that implements this utility model;

[0019] Figure 3 A perspective view of a fixed bracket that implements this utility model;

[0020] Figure 4 A perspective view of a fixing component that implements this utility model;

[0021] Figure 5 A side view of a fixing component that implements this utility model;

[0022] Figure 6 A perspective view of another small-lesion lung cancer tissue fixation device that realizes this utility model;

[0023] Figure 7 A side view of another small-lesion lung cancer tissue fixation device that implements this utility model;

[0024] Figure 8 A perspective view of another fixed bracket for implementing this utility model;

[0025] In the diagram, 1 is the fixed bracket; 2 is the fixed component; 11 is the frame; 12 is the pivot; 13 is the support arm; 14 is the base; 21 is the rotating sleeve; 22 is the hook; 23 is the limiting structure; 221 is the puncture section; and 222 is the pulling section. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The present utility model can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, in the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0029] like Figure 1-5 The invention relates to a small lesion lung cancer tissue fixation device, which includes a fixation bracket 1 and a fixation assembly. The fixation bracket 1 includes a frame 11 and a rotating shaft 12. At least two rotating shafts 12 are fixedly connected inside the frame 11. The fixation assembly 2 includes a rotating sleeve 21 and hooks 22. The rotating sleeve 21 is sleeved on the rotating shaft 12. The number of rotating sleeves 21 is the same as the number of rotating shafts 12. The hooks 22 are arranged in a straight line along the axial direction of the rotating sleeve 21 on the outer wall of the rotating sleeve 21.

[0030] After cutting open the small lesion of lung cancer tissue, the puncture segment 221 of the hook needle 22 is inserted into the periphery of the lung cancer tissue. Then, the rotating sleeve 21 is rotated to open the lesion tissue under the pull of the limiting structure 23, preventing the surrounding lung tissue from squeezing the lesion, making the lesion tissue clearly visible and reducing the chance of misdiagnosis.

[0031] Specifically, frame 11 is a rectangular frame 11.

[0032] In a specific example of this application, such as Figure 1-5As shown, the rectangular frame 11 is approximately 2cm long, 1.5cm wide, and 1.5cm thick. It ensures that small lung cancer lesions of 1cm or less are completely enclosed within the frame, while also allowing for 1cm of movement within the frame. In the event of larger ground-glass opacities (clinically, early adenocarcinomas that are predominantly lamina-like rarely exceed 3cm), it can also provide maximum support.

[0033] like Figure 2 As shown, the pivot 12 is located on each side of the rectangular frame 11. Since the side lengths of the rectangular frame 11 are different, the length of the horizontal side is greater than the length of the vertical side, making the length of the horizontal pivot 12 greater than the length of the vertical pivot 12. Therefore, two fixing components 2 of different lengths are provided to accommodate the different lengths of the horizontal and vertical pivots 12.

[0034] After placing the sample inside the rectangular frame 11, rotate the rotating sleeve 21 so that the hook 22 is inserted into the lung tissue perpendicularly to the cut surface or at a certain arc. Specifically, each hook 22 has a diameter of approximately 2 mm to ensure a certain degree of stability.

[0035] Furthermore, such as Figure 1-5 As shown, the fixing component 2 also includes a limiting structure 23; one end of the limiting structure 23 passes through the rotating sleeve 21 and abuts against the rotating shaft 12. The limiting structure 23 is threadedly connected to the rotating sleeve 21. When the rotating sleeve 21 and the hook 22 are adjusted to a suitable state, and the lesion tissue is spread to a suitable state, the limiting structure 23 is rotated so that the limiting structure 23 abuts against the side wall of the rotating shaft 12. The frictional force limits the positional relationship between the rotating sleeve 21 and the rotating shaft 12, thus limiting the position of the hook 22 and the spread state of the lesion tissue.

[0036] Furthermore, the hook 22 includes a puncture section 221 and a pulling section 222; one end of the pulling section 222 is fixedly connected to the puncture section 221, and the other end is fixedly connected to the rotating sleeve 21.

[0037] Specifically, the end of the puncture segment 221 that is away from the pulling segment 222 is a sharp end.

[0038] In the illustrative embodiments of this application, such as Figure 1-5 As shown, the tension section 222 has an arc-shaped structure, which prevents the sample from slipping while providing an outward stretching force to ensure that the lesion tissue does not shrink after being fixed in formalin. The hook 22 can be about 1 cm long to ensure that it is fixed and does not slip.

[0039] When in use, the lesion tissue is opened under the pull of the arc-shaped limiting structure 23. By rotating the rotating sleeve 21, different parts of the limiting structure 23 come into contact with the lesion tissue. Depending on the needs, the lesion tissue of different sizes can be opened to an appropriate degree, so that the fixator can be used for lesion tissue of various sizes.

[0040] In some embodiments of this application, such as Figure 6-8 As shown, the fixing bracket 1 also includes a support arm 13 and a base 14; one end of the support arm 13 is connected to the frame 11, and the other end is connected to the base 14. The purpose of the support arm 13 and the base 14 is to support the frame 11. When the sample is installed inside the frame 11, and the sample and the small lesion lung cancer tissue fixator are simultaneously immersed in formalin solution, the formalin can fully immerse the sample.

[0041] Specifically, the plane containing frame 11 is parallel to the plane containing base 14.

[0042] In some examples of this application, such as Figure 1-5 As shown, the lengths of the rotating shaft 12 and the rotating sleeve 21 are equal.

[0043] Preferably, the length of the crochet hook 22 is less than the length of the rotating sleeve 21.

[0044] In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The embodiments described in this application are merely some embodiments of the present invention, and not all embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. In the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

Claims

1. A small lesion lung cancer tissue fixator comprising a fixing support and a fixing assembly, characterized in that, The fixing support comprises a frame and rotating shafts; the frame is internally fixedly connected with at least two rotating shafts; the fixing assembly comprises rotating sleeves and hook needles; the rotating sleeves are sleeved on the rotating shafts; the number of the rotating sleeves is the same as that of the rotating shafts; the hook needles are linearly arranged on the outer wall of the rotating sleeve along the axial direction of the rotating sleeve.

2. The small lesion lung cancer tissue fixator according to claim 1, characterized by, The fixing assembly further comprises limiting structures; one end of the limiting structure penetrates through the rotating sleeve and abuts against the rotating shaft.

3. The small lesion lung cancer tissue fixator according to claim 1, characterized by, The hook needle comprises a puncture section and a pulling section; one end of the pulling section is fixedly connected with the puncture section, and the other end is fixedly connected with the rotating sleeve.

4. The small lesion lung cancer tissue fixator according to claim 3, characterized by, The end of the puncture section away from the pulling section is a sharp end.

5. The small lesion lung cancer tissue fixator according to claim 3, characterized by, The pulling section is an arc structure.

6. The small lesion lung cancer tissue fixator according to claim 1, wherein The fixing support further comprises a support arm and a base; one end of the support arm is connected with the frame, and the other end is connected with the base.

7. The small lesion lung cancer tissue fixator according to claim 1, characterized by, The plane where the frame is located is parallel to the plane where the base is located.

8. The small lesion lung cancer tissue fixator according to claim 1, characterized by, The frame is a rectangular frame.

9. The small lesion lung cancer tissue fixator according to claim 1, characterized by, The length of the rotating shaft is equal to that of the rotating sleeve.

10. The small lesion lung cancer tissue fixator according to claim 1, characterized by, The length of the hook needle is less than that of the rotating sleeve.

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