A breast puncture and positioning device

Abstract

The present invention provides a breast puncture and positioning device, comprising a breast puncture mechanism and a marking positioning mechanism, which are used in combination; wherein the breast puncture mechanism comprises an outer shell, an intermediate layer and a core layer, the core layer, the intermediate layer and the outer shell are arranged from the inside to the outside, and the intermediate layer can be ejected from the outer shell, and the core layer can be ejected from the intermediate layer; the core layer comprises a puncture needle; the marking positioning mechanism comprises a marking positioning clip and a marking positioning needle, and the marking positioning needle is arranged to be installed in the marking positioning clip. The present invention discloses a breast puncture and positioning device, which can achieve precise positioning and effectively increase the amount and width of tissue obtained by puncture, does not generate artifacts, and is safe and non-toxic.

Description

Technical Field

[0001] The present invention relates to the field of medical instruments, and in particular to a breast puncture and positioning device. Background Art

[0002] With the continuous promotion of neoadjuvant treatment for breast cancer, preoperative puncture of breast lumps is becoming more and more popular. In the puncture operation, the breast puncture needle is the most commonly used, and the marking positioning needle is occasionally used. However, the existing breast puncture needles and marking positioning needles have the following problems: 1. The existing puncture needles are too thin, and the amount of tissue obtained is limited, especially the width limitation, which often brings certain difficulties to pathological diagnosis; 2. The puncture needle and the positioning needle need to be used separately, and it is difficult to accurately mark the puncture point; 3. Important tissue structures, such as lymph nodes next to the axillary vein, have certain risks of collateral damage and bleeding when the puncture needle is stimulated; 4. If the puncture of tissues next to important tissue structures is abandoned, it may affect the accuracy of operations such as sentinel lymph node biopsy during surgery; 5. The existing breast marking positioning clips are made of metal, which will cause artifacts in routine MRI examinations and interfere with diagnosis. Summary of the invention

[0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is that the existing breast puncture needle is too thin and the amount of tissue obtained is limited. The puncture needle and the marking and positioning needle need to be used separately, which makes it difficult to accurately mark the puncture point. The puncture needle is prone to cause secondary damage or bleeding risks, and the metal material of the breast marking and positioning needle is prone to cause artifacts and interference, affecting the accuracy of the operation. Therefore, the present invention provides a breast puncture and positioning device, which can achieve precise positioning and effectively increase the amount and width of tissue obtained by puncture, does not produce artifacts, and is safe and non-toxic.

[0004] To achieve the above-mentioned objectives, the present invention provides a breast puncture and positioning device, including a breast puncture mechanism and a marking positioning mechanism, which are used in combination; wherein the breast puncture mechanism includes an outer shell, an intermediate layer and a core layer, the core layer, the intermediate layer and the outer shell are arranged from the inside to the outside, and the intermediate layer can be popped out from the outer shell, and the core layer can be popped out from the intermediate layer; the core layer includes a puncture needle; the marking positioning mechanism includes a marking positioning clip and a marking positioning needle, and the marking positioning needle is configured to be installed in the marking positioning clip.

[0005] Furthermore, the puncture needle includes a needle body and a needle head. The needle head is arranged at the front end of the needle body, and a groove is arranged at one end of the needle body close to the needle head.

[0006] Furthermore, the needle body and the needle tip are configured to be integrally formed.

[0007] Furthermore, the core layer and the middle layer are tightly connected.

[0008] Furthermore, a gap is provided between the middle layer and the outer shell.

[0009] Furthermore, when in use, the marking and positioning clip of the marking and positioning mechanism cooperates with the outer shell of the breast puncture mechanism.

[0010] Further, the length of the outer shell is set to 30 cm, the length of the middle layer is set to 15 cm, and the length of the core is set to 15 cm.

[0011] Furthermore, the length of the groove is set to 2 cm.

[0012] Furthermore, a handle is included, which is connected to an end of the shell away from the puncture needle and is used to control the ejection of the core layer and the middle layer.

[0013] Furthermore, a negative pressure device is arranged inside the handle.

[0014] Technical Effects

[0015] The breast puncture and positioning device of the present invention has the following technical effects:

[0016] 1. Effectively increase the amount and width of tissue obtained by puncture, providing a basis for the diagnosis of invasive breast cancer;

[0017] 2. The outer shell of the puncture needle remains stationary in the tissue, and the positioning clip is placed through the outer shell for accurate positioning;

[0018] 3. The negative pressure device can absorb the intended puncture tissue next to the important tissue structure to avoid secondary damage during ejection stimulation;

[0019] 4. The relatively small marking and positioning clip can be placed in the breast tissue and lymph node area, which improves the accuracy of removing the target tissue during surgery;

[0020] 5. The material of the marking positioning clip does not produce artifacts under imaging examinations and is absorbable. The absorption cycle covers the entire process of preoperative puncture - preoperative neoadjuvant therapy - postoperative radiotherapy target area delineation, accurately guiding the entire comprehensive treatment process, and is safe and non-toxic.

[0021] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a breast puncture mechanism of a breast puncture and positioning device according to a preferred embodiment of the present invention;

[0023] Figure 2 It is an enlarged schematic diagram of a breast puncture mechanism of a breast puncture and positioning device according to a preferred embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of a marking and positioning mechanism of a breast puncture and positioning device according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] In the following description, specific details such as specific internal procedures and techniques are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0027] like Figure 1 As shown, the present invention provides a breast puncture and positioning device, including a breast puncture mechanism 1 and a marking positioning mechanism, the breast puncture mechanism 1 and the marking positioning mechanism are used in conjunction with each other; wherein, Figure 2 As shown, the breast puncture mechanism 1 includes an outer shell 11, an intermediate layer 12 and a core layer 13. The core layer 13, the intermediate layer 12 and the outer shell 11 are arranged from the inside to the outside, and the intermediate layer 12 can be ejected from the outer shell 11, and the core layer 13 can be ejected from the intermediate layer 12; the core layer 13 includes a puncture needle; Figure 3 As shown, the marking positioning mechanism includes a marking positioning clamp 14 and a marking positioning needle 15 , and the marking positioning needle 15 is configured to be installed in the marking positioning clamp 14 .

[0028] like Figure 2 As shown, the puncture needle is cylindrical, including a needle body 132 and a needle head 131. The needle body 132 and the needle head 131 are arranged to be integrally formed. The needle head 131 is arranged at the front end of the needle body 132. A groove 133 is arranged at the end of the needle body 132 close to the needle head 131. When stimulated for the first time, the needle body of the core layer 13 pops out and penetrates into the breast tissue. The size of the core layer pops out is 2-5cm, and the groove pops out into the tumor tissue. The size of the groove has been redesigned, and the length of the groove is set to 2cm, which is larger than the existing market products to facilitate the acquisition of more breast tissue.

[0029] Among them, the core layer 13 and the middle layer 12 are tightly connected, there is no gap between the core layer 13 and the middle layer 12, and the edge of the middle layer 12 is thin and sharp. When the second excitation occurs, the middle layer 12 pops out. After the middle layer 12 pops out, the middle layer of the cylinder completely covers the groove, that is, the tissue is retained in the groove, and the thin and sharp edge of the middle layer is used to cut the glandular tissue around the core needle, and the tissue in the groove is retained. There is a certain gap between the outer shell 11 and the middle layer 12, and it can be separated from the inner two-layer structure, and the outer shell and the middle layer do not have to be completely stable. The entire puncture process is under ultrasound guidance, and the position of the puncture needle can be adjusted at any time. When the puncture needle needs to be removed, a removal channel of the internal two-layer structure is provided; when the marker positioning clip needs to be inserted, it serves as the input channel of the marker positioning clip; when the tissue needs to be sucked in, a closed, vacuum channel is provided to absorb the tissue for puncture.

[0030] In this embodiment, the length of the outer shell is set to 30 cm, the length of the middle layer is set to 15 cm, and the length of the core is set to 15 cm.

[0031] In another preferred embodiment of the present invention, Figure 1 As shown, a breast puncture and positioning device also includes a handle 2, which is connected to the end of the shell away from the puncture needle. The handle is provided with a trigger switch respectively connected to the core layer and the middle layer for controlling the ejection of the core layer and the middle layer.

[0032] Furthermore, a negative pressure device is provided inside the handle, which can absorb the intended puncture tissue next to the important tissue structure to avoid secondary damage during ejection.

[0033] The positioning clip of the present invention is improved, smaller in size, absorbable, and made of non-metallic material, specifically the same material as the Hem-o-lock vascular clip used under laparoscopy, and does not produce imaging artifacts. After the positioning clip is taken by the positioning needle, the positioning clip can be accurately delivered to the puncture point through the outermost channel of the puncture needle.

[0034] After completing the puncture sampling of local tissues, the two layers of the inner structure of the puncture needle are pulled out, and the outermost structure is retained, that is, the channel from the outside to the precise puncture point, and the positioning needle with the positioning clip at the front end is sent in through this channel. After reaching the target point, the positioning clip is clamped and the marking is completed, which serves as a precise mark for the edge of the mass, the puncture site, the punctured lymph nodes, etc. When using, first use the breast puncture mechanism for puncture, then remove the core layer and the middle layer after puncture, keep the outer shell intact, and then insert the marking positioning mechanism, and use the positioning clip to send in the positioning needle to ensure accurate positioning.

[0035] The breast puncture and positioning device of the present invention has the following technical effects:

[0036] 1. Effectively increase the amount and width of tissue obtained by puncture, providing a basis for the diagnosis of invasive breast cancer;

[0037] 2. The outer shell of the puncture needle remains stationary in the tissue, and the positioning clip is placed through the outer shell for accurate positioning;

[0038] 3. The negative pressure device can absorb the intended puncture tissue next to the important tissue structure to avoid secondary damage during ejection stimulation;

[0039] 4. The relatively small marking and positioning clip can be placed in the breast tissue and lymph node area, which improves the accuracy of removing the target tissue during surgery;

[0040] 5. The material of the marking positioning clip does not produce artifacts under imaging examinations and is absorbable. The absorption cycle covers the entire process of preoperative puncture - preoperative neoadjuvant therapy - postoperative radiotherapy target area delineation, accurately guiding the entire comprehensive treatment process, and is safe and non-toxic.

[0041] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A breast puncture and positioning device, characterized in that: It comprises a breast puncture mechanism and a marking positioning mechanism, which are used in conjunction with each other; wherein the breast puncture mechanism comprises an outer shell, an intermediate layer and a core layer, wherein the core layer, the intermediate layer and the outer shell are arranged from the inside to the outside, and the intermediate layer can be ejected from the outer shell, and the core layer can be ejected from the intermediate layer; The core layer includes a puncture needle; the marking positioning mechanism includes a marking positioning clip and a marking positioning needle, and the marking positioning needle is configured to be installed in the marking positioning clip; the puncture needle includes a needle body and a needle head, the needle head is arranged at the front end of the needle body, and a groove is arranged at one end of the needle body close to the needle head; the needle body and the needle head are configured to be integrally formed; the core layer and the middle layer are tightly connected; a gap is arranged between the middle layer and the outer shell, and the middle layer can be separated from the two layers of structure inside it, and the outer shell and the middle layer are not completely stable, and the puncture is conducted under ultrasound guidance throughout the process, and the position of the puncture needle can be adjusted at any time; the puncture needle is cylindrical, and when it is first excited, the needle body of the core layer pops out and penetrates into the breast tissue, the size of the core layer pops out is 2-5cm, and the groove pops out into the tumor tissue; there is no gap between the core layer and the middle layer, and the edge of the middle layer is thin and sharp, and when it is secondarily excited, the middle layer pops out, and after the middle layer pops out, the middle layer of the cylinder completely covers the groove, that is, the tissue is retained in the groove, and the glandular tissue around the core needle is cut by the thin and sharp edge of the middle layer, and the tissue at the groove is retained.

2. A breast puncture and positioning device according to claim 1, characterized in that: When in use, the marking positioning clip of the marking positioning mechanism matches with the outer shell of the breast puncture mechanism.

3. A breast puncture and positioning device as claimed in claim 1, characterized in that: The length of the outer shell is set to 30 cm, the length of the middle layer is set to 15 cm, and the length of the core is set to 15 cm.

4. A breast puncture and positioning device as claimed in claim 3, characterized in that: The length of the groove is set to 2 cm.

5. A breast puncture and positioning device as claimed in claim 1, characterized in that: The invention also comprises a handle, which is connected to an end of the shell away from the puncture needle and is used for controlling the ejection of the core layer and the middle layer.

6. A breast puncture and positioning device as claimed in claim 5, characterized in that: A negative pressure device is arranged inside the handle.

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