Mammary gland tiny focus positioning bearded needle guide wire capable of enhancing ultrasonic echo imaging

Abstract

The utility model relates to a mammary gland tiny focus positioning bearded needle guide wire capable of enhancing ultrasonic echo imaging, which is provided with a mammary gland positioning bearded needle, the surface of the mammary gland positioning bearded needle is provided with a layer of porous microcarrier microbubble coating capable of enhancing ultrasonic echo imaging, and a layer of surface super-smooth coating is arranged outside the porous microcarrier microbubble coating. The porous microcarrier microbubble coating is composed of a micron-sized porous microcarrier base body and nano-sized liquid fluorocarbon microbubbles embedded in holes, and is located between the mammary gland positioning crochet hook and the surface super-smooth coating to form a three-layer needle tube structure. The mammary gland positioning bearded needle guide wire not only can enhance ultrasonic development and guide accurate positioning, but also can be safely placed in a human body, and adverse reaction caused by a coating is not generated. According to the mammary gland tiny focus positioning bearded needle guide wire capable of enhancing ultrasonic development, the positions of the positioning bearded needle and the needle point can be clearly observed when a patient is subjected to ultrasonic guided tiny focus positioning or breast cancer operation, and accurate positioning is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of positioning hook needle guide wire in medical instrument guiding breast cancer surgery, in particular to a kind of positioning hook needle guide wire directly applied to clinical ultrasound-guided under breast micro-lesion positioning and marking tumor tissue position guiding breast cancer surgery. BACKGROUND

[0002] In recent years, the incidence of breast cancer gradually increases, seriously threatens the physical and mental health of women. Breast cancer is one of the most common malignant tumors in women, and is the second common cause of cancer-related death in women. Early detection, early diagnosis and early treatment are crucial to improve patient prognosis. Most women go to the hospital for treatment after feeling a lump, and most women have to remove the entire breast, causing great psychological trauma to patients. With the development of social economy and the improvement of health awareness, the popularization of screening and the improvement of early diagnosis technology, the proportion of early cases is increasing. For early breast cancer, breast-conserving surgery has achieved the same therapeutic effect as total mastectomy. It is increasingly common that the lesion cannot be touched by hand, and for these small lesions that cannot be touched, positioning is needed under the guidance of imaging before surgery. The accuracy of positioning affects the resection range and the aesthetic appearance of the breast. Ultrasound is the most commonly used method for diagnosing breast diseases, and the needle body and needle tip visibility are the key to accurate positioning of breast micro-lesions under ultrasound guidance. During ultrasound positioning, most of the metal positioning hook needle guide wires currently used in clinical practice are very thin, with a diameter of less than 1 mm. If the puncture site is deep and the breast is large, the needle body and needle tip are often not clearly displayed in the ultrasound image, resulting in the difficulty of positioning, positioning deviation and other problems in clinical practice. Therefore, how to enhance the visibility of the positioning hook needle in the ultrasound examination of breast micro-lesions and increase the accuracy of positioning is a pressing clinical problem.

[0003] Currently, the medical devices that improve the visibility of ultrasound echo imaging have the common feature that most of them use methods such as carving threads, drilling holes, sandblasting and carving concave holes. These methods mainly increase the roughness of the hook needle surface, increase the diffuse reflection of ultrasound waves and weaken the specular reflection, in order to increase the development signal received by the ultrasound instrument probe and enhance the visibility of the ultrasound image. However, these methods also damage the structure and mechanical properties of the original thin hook needle guide wire, reduce its rigidity and strength, increase the potential risk of breakage during use, and even cause medical disputes, which cannot ideally meet the actual needs of clinicians.

[0004] The microbubbles of contrast agent vibrate under the action of ultrasound and scatter strong ultrasonic signals, which is the most important characteristic of the ultrasonic contrast agent, i.e., enhancing the backscattering signal. In ultrasonic examination, by smearing the ultrasonic contrast agent on the surface of the object to be detected, strong ultrasonic echo can be obtained, so that the position and size of the object to be detected can be more clearly displayed on the image. The surface of the breast micro-lesion positioning hook needle is treated with a porous microcarrier microbubble coating constructed by a biological macromolecule material, so that the similar echo enhancement effect of the contrast agent can be achieved. Meanwhile, the porous microcarrier microbubble coating is firmly attached and has good biocompatibility with biological tissues, and will not produce small molecule substances harmful to the human body.

[0005] The simple biological macromolecule porous microcarrier microbubble coating treatment increases the surface friction coefficient of the positioning hook needle. The surface super-smooth coating of organic polymers such as polyethylene glycol can reduce the surface friction coefficient of the porous microcarrier microbubble coating, so that the surface of the object is smoother, which is beneficial to reduce the tissue friction of the breast micro-lesion during tissue puncture positioning and reduce the risk of hook needle guide wire deviation.

[0006] Based on the above analysis, a new breast positioning hook needle guide wire capable of enhancing the effect of ultrasonic visualization is urgently needed in clinical practice. SUMMARY

[0007] The utility model aims at the accurate positioning problem of breast micro-lesion, and provides a breast micro-lesion positioning hook needle guide wire capable of enhancing ultrasonic echo imaging. The breast positioning hook needle guide wire can not only enhance ultrasonic visualization and guide accurate positioning, but also can be safely placed in the human body without adverse reactions caused by the coating.

[0008] To achieve the above object, the technical scheme of the utility model is as follows: a breast micro-lesion positioning hook needle guide wire capable of enhancing ultrasonic echo imaging has a breast positioning hook needle, the surface of the breast positioning hook needle is provided with a porous microcarrier microbubble coating capable of enhancing ultrasonic echo imaging, the porous microcarrier microbubble coating is externally provided with a surface super-smooth coating, the porous microcarrier microbubble coating is composed of micron-level porous microcarrier matrix and nanometer-level liquid fluorocarbon microbubbles embedded in the pores, and is interposed between the breast positioning hook needle and the surface super-smooth coating to form a three-layer needle tube structure.

[0009] Further, the thickness of the porous microcarrier microbubble coating is 100 mu m.

[0010] Further, the micron-level porous microcarrier matrix is made of chitosan, polylactic acid or sodium alginate material.

[0011] Further, the nanometer-level liquid fluorocarbon microbubbles have a lipid envelope on the outer surface, and are filled with liquid fluorocarbon.

[0012] Further, the thickness of the surface super-smooth coating is about 50 mu m, and the length of the coating is 10 cm.

[0013] Furthermore, the surface super-slip coating is made of materials such as polyethylene glycol or Teflon, and its surface is smooth.

[0014] The beneficial effects of this utility model are:

[0015] (1) The breast micro-lesion positioning hook guidewire of this utility model can increase the clarity of imaging and improve the visibility of the needle body and needle tip during ultrasound examination by using a micron-level porous microcarrier microbubble coating to accurately locate breast micro-lesions under ultrasound guidance and guide breast cancer surgery.

[0016] (2) The super-slippery coating on the surface of the breast micro-lesion positioning hook guide wire of this utility model can reduce the influence of the increased surface friction coefficient caused by the porous microcarrier microbubble coating, reduce puncture resistance, and reduce the risk of displacement during puncture. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the hook needle guidewire structure for locating small breast lesions according to this utility model;

[0018] Wherein: (a) is the main structure, and (b) is the cross section;

[0019] Figure 2 This is a schematic diagram of a porous microcarrier microbubble coating structure.

[0020] In the figure: 1 is the hook wire for locating small breast lesions; 2 is the porous microcarrier microbubble coating; 3 is the super-slippery surface coating; 201 is the micron-sized porous microcarrier matrix; 202 is the nano-sized liquid fluorocarbon microbubble. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] like Figure 1 , Figure 2 As shown in (a) and (b), the breast microlesion localization hook wire provided in this embodiment of the present invention, which can enhance ultrasound echo imaging, includes a breast localization hook, a porous microcarrier microbubble coating 2 that can enhance ultrasound echo imaging, and a surface super-slippery coating 3. The porous microcarrier microbubble coating 2 is composed of a micron-sized porous microcarrier substrate 201 and nano-sized liquid fluorocarbon microbubbles 202 embedded within the pores, located on the surface of the localization hook 1, with a thickness of approximately 100 μm, and is positioned between the breast localization hook 1 and the surface super-slippery coating 3. The surface super-slippery coating 3 is located on the micron-sized porous microcarrier microbubble coating 202, with a thickness of approximately 50 μm, forming a three-layer needle tube structure, wherein the coating length is 10 cm.

[0023] The micrometer porous microcarrier matrix 201 can be chitosan, polylactic acid, sodium alginate and the like. The nanometer liquid fluorocarbon microbubble 202 can be coated with a lipid envelope outside and filled with liquid fluorocarbon inside. The biopolymer porous microcarrier microbubble coating layer is constructed by using a biomedical material commonly used in clinic, has strong chemical stability, good histocompatibility and cannot produce small molecule substances harmful to human body.

[0024] The material of the surface super-smooth coating 3 can be polyethylene glycol, Teflon and the like, has smooth surface, good mechanical properties and good biological histocompatibility, can effectively reduce the friction coefficient of the surface of the breast micro-lesion positioning hook needle guide wire and guarantee biological safety.

[0025] The breast positioning hook needle guide wire for enhancing ultrasonic echo imaging is a three-layer needle tube structure formed by the breast micro-lesion positioning hook needle guide wire 1, the porous microcarrier microbubble coating layer 2 and the surface super-smooth coating layer 3.

[0026] The breast micro-lesion positioning hook needle guide wire has the same use mode as the conventional breast positioning hook needle.

Claims

1. A breast microlesion localization hook wire capable of enhancing ultrasound echo imaging, comprising a breast localization hook wire, characterized in that: The breast positioning hook needle is provided with a porous microcarrier microbubble coating layer capable of enhancing ultrasonic echo imaging, and is externally provided with a surface super-smooth coating layer.

2. The breast micro-lesion locating hook wire capable of enhancing ultrasonic echo imaging according to claim 1, characterized in that: The thickness of the porous microcarrier microbubble coating layer is 100 μm.

3. The breast micro-lesion locating hook needle guide wire capable of enhancing ultrasonic echo imaging according to claim 1, characterized in that: The micrometer porous microcarrier substrate is made of chitosan, polylactic acid or sodium alginate material.

4. The breast micro-cancer locating hook needle guide wire capable of enhancing ultrasonic echo imaging according to claim 1, characterized in that: The nanometer liquid fluorocarbon microbubble has a lipid envelope on the outer surface, and is filled with liquid fluorocarbon.

5. The breast micro-cancer locating hook needle guide wire capable of enhancing ultrasonic echo imaging according to claim 1, characterized in that: The thickness of the surface super-smooth coating layer is 50 μm, and the length of the coating layer is 10 cm.

6. The breast micro-cancer locating hook needle guide wire capable of enhancing ultrasonic echo imaging according to claim 1, characterized in that: The material of the surface super-smooth coating layer is polyethylene glycol or Teflon material, and the surface is smooth.

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