Novel mammary tissue marker

Abstract

The invention discloses a novel breast tissue marker, and relates to the technical field of medical instruments, the novel breast tissue marker comprises a metal core and a marker shell wrapping the outer surface of the metal core, the metal core is a non-magnetic metal core, and the marker shell has a compressed state when not absorbing water and an expanded state when being expanded after absorbing water. The marker shell is of a hard structure in a compressed state, and the marker shell is made of a flexible material in an expanded state. According to the arrangement, the metal characteristic of the metal core ensures that the marker is easy to find under X-ray; due to the non-magnetic characteristic of the metal core, noise generated during magnetic resonance is reduced, the developing property of magnetic resonance is improved, and the marker can be easily found during magnetic resonance; the marker shell has an expansion state of expanding after absorbing water, and can absorb body fluid after the whole marker is implanted into a human body, so that the marker shell absorbs water to expand, the volume of the marker shell is expanded, the developing performance of an ultrasonic image is improved, and the marker shell can be found more easily during ultrasonic examination.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a novel breast tissue marker. Background Art

[0002] Currently, common breast tissue markers are usually made of metal materials such as titanium, nickel-chromium-iron alloy, and nickel-free stainless steel. Metal materials can be easily found under X-rays and magnetic resonance imaging. The main function of the marker is to find the tissue biopsy site by identifying the marker with the assistance of image positioning technology, providing accurate positioning of the lesion. However, due to the characteristics of its material, the marker made of metal will produce large artifacts under magnetic resonance imaging, and the magnetic resonance imaging is poor. Due to the requirements of clinical applications, the size of the marker will not be designed to be very large, and it is difficult to be found under ultrasound. Summary of the invention

[0003] Therefore, the technical problem of the present invention is to solve the defects in the prior art that the marker size is too small to be found under ultrasound, the metal breast tissue marker has poor visualization under magnetic resonance, and the non-metallic breast tissue marker is difficult to be found under X-ray, thereby providing a new breast tissue marker.

[0004] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0005] A novel breast tissue marker comprises a metal core and a marker shell wrapped around the outer surface of the metal core, wherein the metal core is a non-magnetic metal core, and the marker shell has a compressed state before absorbing water and an expanded state after absorbing water, wherein the marker shell is a hard structure in the compressed state and a flexible material in the expanded state.

[0006] Furthermore, the metal core is made of any non-magnetic material such as pure titanium, TC4 titanium alloy, bioceramics, etc.

[0007] Furthermore, the metal core is a cylindrical rod-shaped metal core.

[0008] Furthermore, two rectangular grooves are arranged at both ends of the rod-shaped metal core, and the two rectangular grooves at one end of the metal core are staggered with the two rectangular grooves at the other end of the metal core.

[0009] Furthermore, the grooves at both ends of the rod-shaped metal core are provided with through holes extending therethrough.

[0010] Furthermore, a plurality of circular grooves are formed on the outer side wall of the rod-shaped metal core.

[0011] Furthermore, the metal core is a spring-shaped metal core, and when the marker shell is in a compressed state and an expanded state, the spring-shaped metal core is an extended state marker shell.

[0012] Furthermore, the marker housing is cylindrical in a compressed state.

[0013] Furthermore, the marker shell is made of polymer material.

[0014] Furthermore, the marker shell is a hydrogel, and the hydrogel is made of any one or more biocompatible materials such as polyethylene glycol and polyvinyl alcohol.

[0015] The technical solution of the present invention has the following advantages:

[0016] 1. The novel breast tissue marker provided by the present invention can ensure that the marker can be easily found under X-rays through the metallic properties of the metal core; the non-magnetic properties of the non-magnetic metal core can reduce the artifacts generated during magnetic resonance and improve the image quality of magnetic resonance; the outer shell of the marker has an expansion state after absorbing water, and can absorb body fluids after the marker is implanted in the human body as a whole, so that the outer shell of the marker absorbs water and expands, so that its volume swells, making it easier to be found during ultrasound examination, thereby improving the development performance of ultrasound images.

[0017] 2. The metal core of the novel breast tissue marker provided by the present invention is made of any non-magnetic material such as pure titanium, TC4 titanium alloy, bioceramics, etc. This arrangement can reduce the artifacts generated during magnetic resonance imaging and improve the image quality of magnetic resonance imaging through the non-magnetic properties of materials such as pure titanium, TC4 titanium alloy, bioceramics, etc.

[0018] 3. The novel breast tissue marker provided by the present invention has two rectangular grooves at both ends of the rod-shaped metal core, and the two rectangular grooves at one end of the metal core are staggered with the two rectangular grooves at the other end of the metal core. In this way, the marker shell can be limited by the rectangular grooves in the expanded state, so as to avoid the marker shell from being loosened from the metal core after the volume expands, thereby affecting the development performance.

[0019] 4. The novel breast tissue marker provided by the present invention has through holes set through the grooves at both ends of the rod-shaped metal core. With such a configuration, the through holes can improve the connection stability between the marker shell and the metal core in the expanded state, so that the marker shell can still maintain a stable connection and fixation with the metal core after the volume expands, and avoid the marker shell from becoming loose with the metal core after the volume expands, thereby affecting the development performance.

[0020] 5. The new breast tissue marker provided by the present invention has a plurality of circular grooves on the outer wall of the rod-shaped metal core. With such a configuration, the marker shell can be limited by the circular grooves in the expanded state, and the friction between the metal core and the marker shell can be increased by the plurality of circular grooves, so as to avoid the marker shell from becoming loose from the metal core due to movement in the tissue after the volume of the marker shell expands, thereby avoiding affecting the development performance.

[0021] 6. The metal core of the novel breast tissue marker provided by the present invention is a spring-shaped metal core, and the spring-shaped metal core is in an extended state when the marker shell is in a compressed state and an expanded state. In this way, the connection stability between the marker shell and the metal core in the expanded state is improved by the spring-shaped metal core shape of the metal core, so that the marker shell can still maintain a stable connection and fixation with the metal core after the volume expands, and the marker shell can be prevented from loosening from the metal core after the volume expands, thereby affecting the development performance.

[0022] 7. The new breast tissue marker provided by the present invention has a cylindrical outer shell in a compressed state, which is convenient for injecting it into the human body through a puncture needle tube. The cylindrical design is more conducive to integration with surrounding tissues, reducing rejection reactions, thereby improving the patient's comfort and the success rate of treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A three-dimensional structural diagram of a marker shell of a novel breast tissue marker provided by the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the rod-shaped metal core in the first embodiment of the present invention located in the marker housing;

[0026] Figure 3 is a schematic structural diagram of a rod-shaped metal core in Embodiment 1 of the present invention;

[0027] Figure 4 This is a three-dimensional structural diagram of the spring-shaped metal core in the second embodiment of the present invention located in the marker housing;

[0028] Figure 5 It is a three-dimensional structural diagram of the spring-shaped metal core in the second embodiment of the present invention.

[0029] Explanation of the reference numerals in the accompanying drawings: 1. Marker housing; 2. Rod-shaped metal core; 3. Rectangular groove; 4. Through hole; 5. Circular groove; 6. Spring-shaped metal core. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] Embodiment 1:

[0035] like Figure 1-Figure 3 A novel breast tissue marker shown includes a metal core and a marker shell 1 wrapped around the outer surface of the metal core. The metal core is a non-magnetic metal core. The marker shell 1 has a compressed state before absorbing water and an expanded state after absorbing water. The marker shell 1 is a hard structure in the compressed state, and is a flexible material in the expanded state.

[0036] This new breast tissue marker can ensure that the marker is easily found under X-rays through the metallic properties of the metal core; the non-magnetic properties of the non-magnetic metal core can reduce artifacts produced during magnetic resonance and improve the image quality of magnetic resonance; the marker shell 1 has an expanded state after absorbing water, and can absorb body fluids after the marker is implanted in the human body, so that the marker shell 1 absorbs water and expands, making its volume swell, making it easier to find during ultrasound examination, thereby improving the development performance of the ultrasound image marker shell.

[0037] In this embodiment, the marker housing 1 is cylindrical in the compressed state, so that it is easy to be injected into the human body through the puncture needle tube, and the cylindrical design is more conducive to the integration with the surrounding tissues, reducing the rejection reaction, thereby improving the patient's comfort and the success rate of treatment.

[0038] In this embodiment, the marker shell 1 is made of a polymer material. Specifically, the marker shell 1 is a hydrogel, and the hydrogel is made of any one or more biocompatible materials such as polyethylene glycol and polyvinyl alcohol.

[0039] In this embodiment, a plurality of circular grooves 5 are formed on the outer side wall of the rod-shaped metal core 2. With such a configuration, the marker housing 1 can be limited by the circular grooves 5 in the expanded state, and the friction between the metal core and the marker housing 1 can be increased by the plurality of circular grooves 5, so as to prevent the marker housing 1 from being loosened from the metal core due to movement in the tissue after the volume of the marker housing 1 is expanded, thereby preventing the imaging performance from being affected.

[0040] In this embodiment, the metal core is made of pure titanium. In an alternative embodiment, the metal core may also be made of any non-magnetic material such as TC4 titanium alloy, bioceramics, etc. With such a configuration, artifacts generated during magnetic resonance imaging can be reduced and the image quality of magnetic resonance imaging can be improved by utilizing the non-magnetic properties of materials such as pure titanium, TC4 titanium alloy, bioceramics, etc.

[0041] In this embodiment, the metal core is a cylindrical rod-shaped metal core 2. Specifically, two rectangular grooves 3 are provided at both ends of the rod-shaped metal core 2, and the two rectangular grooves 3 at one end of the metal core are staggered with the two rectangular grooves 3 at the other end of the metal core. In this way, the marker shell 1 can be limited by the rectangular grooves 3 in the expanded state, so as to prevent the marker shell 1 from being loosened from the metal core after the volume expands, thereby affecting the developing performance.

[0042] In this embodiment, the grooves at both ends of the rod-shaped metal core 2 are provided with through holes 4. In this way, the connection stability between the marker shell 1 and the metal core in the expanded state can be improved through the through holes 4, so that the marker shell 1 can still maintain a stable connection and fixation with the metal core after the volume is expanded, and the marker shell 1 can be prevented from being loosened from the metal core after the volume is expanded, thereby affecting the development performance.

[0043] In this embodiment, a plurality of circular grooves 5 are further provided on the outer side wall of the rod-shaped metal core 2. With such a configuration, the marker housing 1 can be limited by the circular grooves 5 in the expanded state, and the friction between the metal core and the marker housing 1 can be increased by the plurality of circular grooves 5, so as to prevent the marker housing 1 from becoming loose from the metal core due to movement in the tissue after the volume of the marker housing 1 expands, thereby preventing the development performance from being affected.

[0044] Embodiment 2:

[0045] like Figure 4-Figure 5 The novel breast tissue marker shown is different from the first embodiment in that, in the present embodiment, the metal core is a spring-shaped metal core 6, and the spring-shaped metal core 6 is in an extended state when the marker housing 1 is in a compressed state and an expanded state. In this way, the connection stability between the marker housing 1 and the metal core in the expanded state is improved by the spring-shaped metal core 6 of the metal core, so that the marker housing 1 remains stably connected and fixed with the metal core after the volume expands, and the marker housing 1 is prevented from becoming loose from the metal core after the volume expands, thereby affecting the development performance.

[0046] Specifically, the spring-shaped metal core 6 does not have elasticity. With such a configuration, the spring-shaped metal core 6 can always remain in an extended state, and will not be compressed due to the dehydration and compression of the marker housing 1, so that the spring-shaped metal core 6 can be prevented from bouncing under its own elastic stress as the marker housing 1 absorbs water and expands, and the position of the marker in the body cannot be controlled after the spring-shaped metal core 6 bounces.

[0047] In summary, this new breast tissue marker can ensure that the marker can be easily found under X-rays through the metallic properties of the metal core; the non-magnetic properties of the non-magnetic metal core can reduce artifacts during magnetic resonance and improve the image quality of magnetic resonance. The marker shell 1 has an expanded state after absorbing water, and can absorb body fluids after the marker is implanted in the human body, so that the marker shell 1 absorbs water and expands, making its volume swell, making it easier to find during ultrasound examination, thereby improving the development performance of ultrasound images.

[0048] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A novel breast tissue marker, characterized in that: The invention comprises a metal core and a marker shell (1) wrapped around the outer surface of the metal core, wherein the metal core is a non-magnetic metal core, and the marker shell (1) has a compressed state when not absorbing water and an expanded state when expanding after absorbing water, wherein the marker shell (1) is a hard structure in the compressed state and a flexible material in the expanded state.

2. The novel breast tissue marker according to claim 1, characterized in that: The metal core is made of any non-magnetic material such as pure titanium, TC4 titanium alloy, bioceramics, etc.

3. The novel breast tissue marker according to claim 1, characterized in that: The metal core is a cylindrical rod-shaped metal core (2).

4. The novel breast tissue marker according to claim 3, characterized in that: Two rectangular grooves (3) are arranged at both ends of the rod-shaped metal core (2), and the two rectangular grooves (3) at one end of the metal core are staggered with the two rectangular grooves (3) at the other end of the metal core.

5. The novel breast tissue marker according to claim 4, characterized in that: The grooves at both ends of the rod-shaped metal core (2) are provided with through holes (4) extending therethrough.

6. The novel breast tissue marker according to claim 3, characterized in that: A plurality of circular grooves (5) are provided on the outer side wall of the rod-shaped metal core (2).

7. The novel breast tissue marker according to claim 1, characterized in that: The metal core is a spring-shaped metal core (6), and when the marker housing (1) is in a compressed state and an expanded state, the spring-shaped metal core (6) and the marker housing (1) are both in an extended state.

8. The novel breast tissue marker according to claim 1, characterized in that: The marker housing (1) is cylindrical in a compressed state.

9. The novel breast tissue marker according to claim 1, characterized in that: The marker shell (1) is made of polymer material.

10. The novel breast tissue marker according to claim 8, characterized in that: The marker shell (1) is a hydrogel, and the hydrogel is made of any one or more biocompatible materials such as polyethylene glycol and polyvinyl alcohol.

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