Mammary gland focus marker and puncture positioning device

Abstract

The utility model relates to the technical field of soft tissue focus positioning, in particular to a mammary gland focus marker and puncture positioning device, which comprises a puncture needle, a releaser, a marker and a sheath tube, the front end of a needle handle of the puncture needle is detachably connected with the sheath tube, the marker is arranged inside the puncture needle, the releaser is inserted into the puncture needle, and the sheath tube is detachably connected with the needle handle of the puncture needle. The puncture needle comprises a puncture needle handle, a puncture needle sheath is fixedly connected to the front end of the puncture needle handle, a locking device is fixedly connected to the rear end of the puncture needle handle, the releaser comprises a pushing handle, and a pushing rod is fixedly connected to the front end of the pushing handle. The spherical lantern structure is designed, large anchoring force is achieved, the developing effect is enhanced through the unique three-dimensional structure of the spherical lantern structure, accurate positioning is easier, and therefore tiny focuses are effectively cut off.

Description

Technical Field

[0001] The utility model relates to the technical field of soft tissue lesion localization, in particular to a breast lesion marker and a puncture positioning device. Background Technique

[0002] As is well known, at present, for the diagnosis and treatment of occult breast lesions in clinical practice, how to accurately locate and obtain lesion tissues for pathological examination and clarify the nature of the lesions has become an urgent problem to be solved; at the same time, with the improvement of early breast cancer diagnosis technology and the increasing emphasis on comprehensive treatment, breast surgery has developed from the pursuit of radical surgical resection to the combination of surgery and comprehensive treatment, which has brought about a major change in the surgical treatment of breast cancer.

[0003] The accurate resection of clinically non-palpable breast lesions has become a major problem faced by surgeons. In the past, for such lesions as breast calcifications, only rough localization could be carried out, and then segmental resection of the breast was performed. However, this radical treatment method obviously no longer conforms to the current advocated principles of minimally invasive, accurate and safe surgical treatment, and is even less suitable for performing breast-conserving surgery for breast cancer. For occult breast lesions that cannot be palpated clinically, how to accurately locate during surgery and determine whether the lesion range reaches the negative resection margin is the key to whether breast-conserving surgery can be performed.

[0004] The currently clinically used positioning wire device guides the operation by leaving the tail of the positioning wire outside the patient's skin. Moreover, since the positioning wire can only be placed on the day of surgery, the free development of positioning is restricted, and the actual clinical process is not convenient. In addition, during the transportation and surgery of the patient in the positioning room and the operating room, the positioning wire may have complications such as breakage and displacement due to external forces. Therefore, it is necessary to propose a solution to this technical problem. Content of the Utility Model

[0005] (1) Technical Problem to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a breast lesion marker and a puncture positioning device.

[0007] (2) Technical Solution

[0008] To achieve the above object, the utility model provides the following technical solution: A breast lesion marker and a puncture positioning device, including a puncture needle, a release device, a marker and a protective sleeve. The front end of the needle handle of the puncture needle is detachably connected to the protective sleeve. The marker is arranged inside the puncture needle. The release device is inserted into the puncture needle. The puncture needle includes a puncture needle handle. The front end of the puncture needle handle is fixedly connected to a puncture needle sheath. The rear end of the puncture needle handle is fixedly connected to a lock. The release device includes a push handle. The front end of the push handle is fixedly connected to a push rod.

[0009] Furthermore, the present utility model is improved in that before positioning, the marker is in a state of a straightened thin wire and is retained in a 20G puncture needle. After entering the target lesion, it is completely released into a spherical lantern shape, and the extended length of the spherical lantern is 40 - 70 mm.

[0010] Furthermore, the present utility model is improved in that one end of the marker is sharpened and the other end is flat.

[0011] Furthermore, the present utility model is improved in that the material of the marker is nitinol memory alloy.

[0012] Furthermore, the present utility model is improved in that the 10 mm area at the head end of the puncture needle sheath is subjected to sandblasting treatment.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present utility model provides a breast lesion marker and a puncture positioning device, which have the following beneficial effects:

[0015] For this breast lesion marker and puncture positioning device, a lock is adopted to fix the percutaneous entry depth of the puncture needle, effectively preventing the puncture needle from sliding in the Z-axis direction within the breast tissue, thereby accurately determining the puncture depth of the puncture needle;

[0016] To avoid the displacement problem caused by insufficient anchoring force after the marker combines with the tissue, the present utility model designs a spherical lantern structure, which not only has a large anchoring force, but also its unique three-dimensional structure enhances the imaging effect, making it easier to accurately locate and effectively remove small lesions;

[0017] The marker made of nitinol memory alloy, on the one hand, utilizes the memory function of the material, so that the marker is in a state of a straightened thin wire before positioning and can be retained in a 20G puncture cannula with a relatively small circumference, reducing the pain and discomfort of the patient during the puncture process. After entering the target lesion, it is completely released into a spherical lantern shape and is well anchored in the target lesion area. On the other hand, the marker has better imaging multimodal compatibility and can be positioned under the guidance of X-ray, B-ultrasound and magnetic resonance, and realizes the cross-image modal mutual verification of the positioning position. The marker of this kind of material has superelasticity and memory performance and can be completely released and formed in the tissue, reducing the difficulty of finding the target lesion area during postoperative tissue section examination.

[0018] The 10 mm area at the head end of the puncture needle sheath is subjected to sandblasting treatment, which is convenient for positioning the position of the needle tip through ultrasonic reflection during ultrasonic guidance. Description of the drawings

[0019] Figure 1 It is a schematic structural diagram of the present utility model;

[0020] Figure 2 It is a schematic structural diagram of the puncture needle of the present utility model;

[0021] Figure 3 This is a schematic structural diagram of the releaser of the present utility model;

[0022] Figure 4 This is a schematic structural diagram of the marker of the present utility model.

[0023] In the figure: 1, puncture needle; 101, puncture needle handle; 102, puncture needle sheath; 103, lock; 2, releaser; 201, push handle; 202, push rod; 3, marker; 4, protective sleeve. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4 , the present utility model is a breast lesion marker and puncture positioning device, including a puncture needle 1, a releaser 2, a marker 3 and a protective sleeve 4. The front end of the needle handle of the puncture needle 1 is detachably connected to the protective sleeve 4. The marker 3 is arranged inside the puncture needle 1. The releaser 2 is inserted into the puncture needle 1. The puncture needle 1 includes a puncture needle handle 101. The front end of the puncture needle handle 101 is fixedly connected to a puncture needle sheath 102. The rear end of the puncture needle handle 101 is fixedly connected to a lock 103. The releaser 2 includes a push handle 201. The front end of the push handle 201 is fixedly connected to a push rod 202.

[0026] In this solution, the marker 3 is in a straightened filament state and remains in the 20G puncture needle before positioning. After entering the target lesion, it is completely released into a spherical lantern shape. The extended length of the spherical lantern is 40 - 70 mm. One end of the marker 3 is sharpened and the other end is flat. The material of the marker 3 is nickel-titanium memory alloy, which has high strength, better biocompatibility, superelasticity and memory performance, reduces the discomfort of patients and the occurrence of other complications, can be completely released and formed in the tissue, and reduces the difficulty of postoperative tissue section examination.

[0027] In this solution, the puncture needle sheath 102 is provided with an upper laser-engraved scale ruler.

[0028] In this solution, the 10 mm area at the head end of the puncture needle sheath 102 is subjected to sandblasting treatment.

[0029] Usage method of the utility model: Open the package, remove the protective sleeve 4, confirm the puncture angle and puncture path under the guidance of X-ray, ultrasound or magnetic resonance. The puncture path should avoid important structures such as blood vessels. Measure the distance, which is the distance from the skin surface to the breast lesion. Select the product with the corresponding specification according to the measured distance. Puncture the tissue with the puncture needle 1 under local anesthesia. Confirm the puncture depth through the scale mark on the tube body of the puncture needle sheath 102. Repeat X-ray, ultrasound or magnetic resonance to ensure that the tip of the puncture needle 1 is near the breast nodule. Fix the lock 103 to the skin, then push the release device 2 to the end of the lock 103 to release the marker 3. After the release of the marker 3 is completed, slowly withdraw the puncture needle 1 backward until the whole puncture needle 1 is withdrawn from the body. Determine the positional relationship between the marker 3 and the breast nodule again through X-ray, ultrasound or magnetic resonance, and the positioning is completed.

[0030] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A breast lesion marker and puncture positioning device, comprising a puncture needle (1), a releaser (2), a marker (3) and a sheath tube (4), characterized in that: The front end of the needle handle of the puncture needle (1) is detachably connected to the sheath tube (4), the marker (3) is arranged inside the puncture needle (1), the releaser (2) is inserted into the puncture needle (1), the puncture needle (1) comprises a puncture needle handle (101), the front end of the puncture needle handle (101) is fixedly connected to the puncture needle sheath (102), the rear end of the puncture needle handle (101) is fixedly connected to the locker (103), and the releaser (2) comprises a push handle (201), the front end of the push handle (201) is fixedly connected to the push rod (202).

2. A breast lesion marker and puncture positioning device according to claim 1, characterized in that: The marker (3) is in the shape of a spherical lantern, and the extended length of the spherical lantern is 40-70 mm.

3. A breast lesion marker and puncture positioning device according to claim 2, characterized in that: One end of the marker (3) is sharpened and the other end is flat.

4. A breast lesion marker and puncture positioning device according to claim 3, characterized in that: The material of the marker (3) is nickel-titanium memory alloy.

5. A breast lesion marker and puncture positioning device according to claim 4, characterized in that: The puncture needle sheath (102) is provided with an upper laser-marked scale.

6. A breast lesion marker and puncture positioning device according to claim 5, characterized in that: The 10 mm area at the tip of the puncture needle sheath (102) is sandblasted.

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