Medical telescopic positioning marking device

Abstract

The invention discloses a medical telescopic positioning marking device, which belongs to the technical field of breast tumor marking, and comprises an inner core structure, a needle cylinder structure and an outer sleeve structure, the inner core structure comprises an end, a connecting spring, fixing rings and an inner core, the end, the connecting spring and the multiple fixing rings form a marking body used for positioning and marking tissue, the inner core structure is arranged in the needle cylinder structure in a sliding mode, and the outer sleeve structure is used for fixing the inner core and the needle cylinder. After mammary gland puncture, the marker can be completely left in the body, can be freely bent and stretched and is not prone to displacement, a visual three-dimensional linear marker is formed through multi-directional marking of tumors, the risk of infection or accidental injury possibly caused by a traditional positioning steel wire is reduced, the operation safety is improved, and the operation efficiency is improved. The neoadjuvant chemotherapy breast cancer patient only needs one-time positioning and marking, and does not need to bear secondary trauma caused by steel wire positioning after traditional marking clamp positioning.

Description

Technical Field

[0001] The invention relates to the technical field of breast tumor marking, in particular to a medical retractable positioning marking device. Background Art

[0002] For smaller benign and malignant breast tumors, which are difficult to touch, a barbed wire is usually inserted into the tumor under ultrasound guidance before or during surgery to locate the tumor and then remove the tumor. For palpable breast cancer, local extended resection of the tumor (i.e. local extended resection of breast cancer or breast-conserving surgery) is usually performed based on the surgeon's hand feel. However, there are problems such as a small resection range and a high positive margin rate, or an excessive resection range, resulting in the removal of too many normal glands, which affects the postoperative aesthetics.

[0003] For patients who receive neoadjuvant chemotherapy for breast cancer, because the tumor may shrink or even disappear during chemotherapy, in order to mark the location of the tumor, it is currently necessary to place a marking clip at the center or periphery of the tumor or perform a body surface projection tattoo before chemotherapy to mark the location and range of the tumor, so as to facilitate accurate removal of the tumor during breast-conserving surgery after the completion of neoadjuvant chemotherapy. After the completion of neoadjuvant chemotherapy, it is usually necessary to insert a barbed steel wire under ultrasound guidance before or during surgery to locate the marking clip, thereby completing the positioning of the tumor, and finally performing breast-conserving surgery for breast cancer with the positioning wire and marking clip as reference.

[0004] However, the positioning of the barbed wire and marker clip of breast tumors must be completed under ultrasound guidance. The barbed wire or marker clip is located in the puncture needle barrel. After the front end of the puncture needle reaches the target area (tumor center or periphery), the barbed wire or marker clip is pushed out of the puncture needle barrel and fixed to the target area.

[0005] The traditional treatment methods currently have the following problems: 1. For the positioning and resection of smaller tumors, after the barbed wire is marked, part of the wire is exposed on the body surface. If the wire contacts non-sterile items, if the exposed wire is not thoroughly disinfected during surgery, the risk of wound infection may increase; 2. If proper protection is not paid attention to, the barbed needle structure at the end or front end of the positioning wire may cause medical staff to be stabbed. If the positioning wire shifts to the deep part, it may cause further damage to the patient; 3. The marking clip is marked before neoadjuvant chemotherapy. After the end of neoadjuvant chemotherapy, the positioning wire needs to be inserted again under ultrasound guidance before surgery to locate the position of the marking clip. The patient needs to undergo two positioning markings; 4. For calcified lesions, ultrasound sometimes makes it difficult to distinguish between the positioning marking clip and the calcified lesion, resulting in difficult or inaccurate positioning; 5. The marking clip is a point mark, and the breast gland has a certain degree of mobility at different depths, so accurate three-dimensional marking cannot be completed; 6. The fixation is not reliable, and sometimes excessive traction during surgery can easily cause the barbed wire to fall out.

[0006] Therefore, in order to facilitate the complete placement of the marker in the body and meet the high requirements for the flexibility of the marker due to the large mobility of the breast gland, the three-dimensional positioning of the tumor can be completed through a single puncture, the chance of infection and the chance of accidental injury to patients and medical staff can be reduced, and the three-dimensionality, accuracy and visibility of the tumor position or range marking can be improved. A medical retractable positioning marking device is proposed. Summary of the invention

[0007] The purpose of the present invention is to provide a medical retractable positioning marking device to solve the problem that the traditional breast tumor positioning wire proposed in the above background technology increases the potential risk of infection, the steel wire and its barbed structure may cause accidental injury to medical staff or patients, and the positioning of the marking clip for neoadjuvant chemotherapy breast cancer patients requires re-positioning of the marking clip during surgery, causing secondary injuries.

[0008] To achieve the above object, the present invention provides the following technical solution: a medical retractable positioning marker device, comprising:

[0009] An inner core structure, the inner core structure comprises an end, a connecting spring, a fixing ring and an inner core, the end, the connecting spring and a plurality of fixing rings form a marking body, the end is fixedly arranged at one end of the marking body and abuts against the connecting spring, an operating part is arranged at one end of the inner core, and the inner core passes through the fixing ring and the connecting spring to reach the end;

[0010] A syringe structure, comprising a syringe and a handle portion, wherein the syringe is fixedly connected to the handle portion, and a needle portion is provided at one end of the syringe away from the handle portion;

[0011] The outer jacket structure comprises an outer jacket shell a and an outer jacket shell b, wherein the outer jacket shell a and the outer jacket shell b are both provided with positioning grooves;

[0012] The inner core structure is slidably arranged inside the syringe structure, and the outer sleeve structure is used to fix the handle part and the operating part;

[0013] As a further preferred embodiment of the present technical solution: the syringe is hollow, the inner core structure can penetrate and slide inside the syringe, and the end head is arranged at the head end close to the needle head;

[0014] As a further preferred embodiment of the technical solution: a clamping ring is fixedly connected to the outer shell a, a clamping block is fixedly connected to the outer shell b, and the clamping ring and the clamping block are clamped together;

[0015] As a further preferred embodiment of the technical solution: one end of the connecting spring abuts against the end head, and the fixing ring is evenly arranged on the connecting spring;

[0016] As a further preferred embodiment of the technical solution: an end of the inner core away from the end head is fixedly connected to an operating part;

[0017] As a further preferred embodiment of the present technical solution: the fixing ring adopts a hollow spherical structure, and the material of the fixing ring is one of a metal alloy and a non-metallic polymer;

[0018] As a further preferred embodiment of the technical solution: the plurality of fixing rings are connected by a connecting spring, the connecting spring is one of a spiral spring or a wavy spring, the cross section of the connecting spring is one of a circular spring or a rectangular spring, the longitudinal cross section of the wavy spring is a wavy shape, and the material of the connecting spring is one of a metal alloy material or a polymer material;

[0019] As a further preferred embodiment of the technical solution: the fixing ring is provided with color markings, and the fixing ring is provided with different colors at certain intervals;

[0020] As a further preferred embodiment of the present technical solution: the handle portion is arranged in a positioning groove.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The marker is completely left inside the body without being exposed, thus avoiding the risk of bacterial contamination caused by the exposed part in traditional marking methods and improving the safety of the operation;

[0023] 2. For patients receiving neoadjuvant chemotherapy, only one positioning is required to complete the marking. Compared with the existing marking clip method, patients do not need to endure the inconvenience and potential pain caused by re-positioning the wire. At the same time, if the patient has multiple calcifications, the traditional marking method may lead to inaccurate positioning, and the method of the present invention can effectively avoid such a situation;

[0024] 3. When used for tumor range marking, compared with traditional point marking, linear marking provides a more three-dimensional marking effect, which helps to define the tumor boundary more accurately. Through multi-directional marking, a "visualized" resection boundary is established, thereby improving the accuracy and efficiency of surgical resection.

[0025] 4. The head end, the fixing ring and the spring connecting them can form a good fixed relationship with the tissue, which means that the entire marking system is not easy to move after implantation, ensuring the stability of the marking;

[0026] 5. Compared with the traditional barbed wire structure, the spring structure design makes it easier to adapt to the large mobility of breast tissue and reduces the discomfort caused by the foreign body sensation in patients;

[0027] 6. When the excess marker is cut off, its end becomes round and blunt, which reduces the risk of accidental injury to medical staff compared with sharp steel wires;

[0028] 7. Fluorescent materials are added to the fixing ring so that the marker can be detected by stimulating fluorescence through an infrared fluorescent probe when necessary, which makes it easier to find the marker position in complex situations.

[0029] 8. The cross section of the connecting spring can be set to a rectangle as required to increase the cross section and one or more metal wires can be arranged inside to effectively prevent surgical instruments from cutting off the marking body. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the exploded structure of a medical retractable positioning marking device of the present invention;

[0031] Figure 2 This is a schematic diagram of the internal structure of a medical retractable positioning marking device of the present invention;

[0032] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0033] Figure 4 Schematic diagram of the shape structure of the end.

[0034] In the figure: 1, end; 2, connecting spring; 3, fixing ring; 6, outer shell a; 7, outer shell b; 8, positioning groove; 9, syringe; 10, handle; 11, needle head; 12, retaining ring; 13, retaining block; 23, inner core; 24, operating part. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0036] Example

[0037] See also Figure 1-Figure 4 As shown, the present invention provides a technical solution: a medical retractable positioning marking device, comprising:

[0038] The inner core structure includes an end 1, a connecting spring 2, a fixing ring 3 and an inner core 23. The end 1, the connecting spring 2 and a plurality of fixing rings 3 form a marking body. The end 1 is fixedly arranged at one end of the marking body and abuts against the connecting spring 2. The inner core 23 passes through the fixing ring 3 and the connecting spring 2. When in use, the end 1, the connecting spring 2 and a plurality of fixing rings 3 form a marking body for marking the position of the tumor. The inner core 23 drives the marking body into the marking position and fixes it with the surrounding tissue.

[0039] In this embodiment, the connecting spring 2 can be a wave spring or a spiral spring, and the spring material is metal or polymer material. The cross section of the wave spring is circular or rectangular, and the longitudinal section is wavy. Preferably, a spiral spring is used, and the cross section of the spiral spring is rectangular or circular, and densely arranged, so that the tissue is not easy to embed into the densely arranged springs. The cross section of the spring made of polymer material is preferably rectangular, wider, and preferably provided with a metal wire inside, which is not easy to be cut by a scalpel. The inner core 23 is arranged in the marking body, and the inner core 23 runs through the marking body.

[0040] The syringe structure includes a syringe 9 and a handle 10. The syringe 9 is fixedly connected to the handle 10. The syringe 9 is provided with a needle head 11 at one end away from the handle 10.

[0041] The outer jacket structure includes an outer jacket shell a6 and an outer jacket shell b7, and positioning grooves 8 are provided in the outer jacket shell a6 and the outer jacket shell b7;

[0042] The inner core structure is slidably arranged inside the syringe structure, and the outer sleeve structure is used to fix the inner core and the syringe.

[0043] In this embodiment, specifically: the syringe 9 is hollow, the inner core structure can penetrate and slide inside the syringe 9, the terminal 1 is set at the head end close to the needle head 11, the syringe 9 is inserted into the place where marking is required through the needle head 11, and then the syringe 9 is pushed outward and the inner core 23 is pushed inward at the same time, and then the inner core 23 can push the terminal 1 and the marking body formed by the fixed ring 3 and the connecting spring 2 connected thereto to slide along the inside of the syringe 9 to the outside of the syringe 9, so that the terminal 1, part of the connecting spring 2, and part of the fixing ring 3 leave the syringe 9 and enter around the tissue and are fixed, and finally the inner core 23 and the syringe 9 are pushed out, and the marking body is completely fixed to the tissue.

[0044] In this embodiment, specifically: a clamping ring 12 is fixedly connected to the outer shell a6, and a clamping block 13 is fixedly connected to the outer shell b7, and the clamping ring 12 and the clamping block 13 are clamped together;

[0045] When in use, the outer shell a6 and the outer shell b7 can be spliced ​​and fixed from both sides of the handle part 10. When it needs to be opened, the outer shell a6 and the outer shell b7 can be separated by simply separating the clamping ring 12 and the clamping block 13. At this time, the operating part 24 can be operated.

[0046] In this embodiment, specifically: the connecting spring 2 acts on two adjacent fixing rings 3, and the connecting spring 2 can make the marker body retractable and adapt to the mobility of breast tissue, and at the same time can better embed into the tissue and fix it to the tissue.

[0047] In this embodiment, specifically: one end of the inner core 23 away from the end head 1 is fixedly connected with the operating part 24; the operator can push the operating part 24, and the operating part 24 drives the inner core 23 to push the marking body to move in the syringe 9, and then push the marking body into the body.

[0048] In this embodiment, specifically: the fixing ring 3 adopts a hollow spherical structure, and the material of the fixing ring 3 is one of a metal alloy and a non-metallic polymer. Preferably, a non-metallic polymer material is adopted. The material of the fixing ring 3 can be the same as or different from the material of the spring, and the fluorescent imaging material can be added to the inside of the non-metallic polymer material as needed.

[0049] In the present embodiment, specifically: a plurality of fixing rings 3 are connected by a connecting spring 2, the spring 2 is a spiral spring or a wavy spring, the cross section of the spring 2 is a circular or rectangular one, the longitudinal cross section of the wavy spring is wavy, the material of the connecting spring 2 is a metal alloy material or a polymer material, preferably, a spiral spring is used, the cross section of the spiral spring is rectangular or circular, and densely arranged, the tissue is not easy to embed into the closely arranged springs, and the cross section of the spring made of polymer material is preferably rectangular, wider, preferably, a metal wire is arranged inside, which is not easy to be cut by a scalpel, the inner core 23 is arranged in the marking body, and the inner core 23 runs through the marking body.

[0050] In this embodiment, specifically: a color mark is provided on the fixing ring 3, and different colors are provided on the fixing ring 3 at certain intervals. After the marking is completed, scissors are used to cut off the exposed part, and then the number of fixing rings embedded in the body can be quickly calculated according to the color and number on the fixing ring 3 on the cut-off marking body, so as to facilitate determination during surgery whether all the marking rings retained in the body have been removed.

[0051] In this embodiment, specifically: the handle portion 10 is disposed in the positioning groove 8 .

[0052] Working principle or structural principle: When marking the position of a breast tumor, the needle head 11 is inserted into the periphery or center of the tumor under ultrasound guidance, the syringe 9 is pushed outward, and the operating part 24 is pushed inward at the same time. The operating part 24 drives the inner core 23 to push the end 1, the connecting spring 2 and part of the fixing ring 3 out of the syringe 9, so that the end 1 with a groove, part of the connecting spring 2 and part of the fixing ring 3 are fixed at the marking position, and the inner core 23 and the syringe 9 are pushed outward, the marking body completes the in vivo positioning, and then the part of the marking body exposed outside the body is cut off, thereby completing the marking of the breast tumor. When used for marking the periphery of the tumor, multi-directional marking can be performed, and with the help of multiple linear markings, a multi-directional, three-dimensional, and visual marking of the tumor is formed;

[0053] The fixing ring 3 adopts a hollow spherical structure, and a groove can be provided in the middle of the fixing ring 3 as required. The material of the fixing ring 3 is a metal alloy or a non-metallic polymer, and preferably a non-metallic polymer material. Fluorescent imaging materials are added to the non-metallic polymer material as required, and the fixing ring 3 is provided with different colors at certain intervals. After the marking is completed, the exposed part is cut off with scissors, and then the number of fixing rings embedded in the body can be quickly calculated according to the color and number of the fixing ring 3 on the cut-off marking body.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical retractable positioning marking device, characterized in that: include: An inner core structure, the inner core structure comprising an end head (1), a connecting spring (2), a fixing ring (3) and an inner core (23), the end head (1), the connecting spring (2) and a plurality of fixing rings (3) forming a marking body, the end head (1) being fixedly arranged at one end of the marking body and abutting against the connecting spring (2), and the inner core (23) penetrating the fixing ring (3) and the connecting spring (2); A syringe structure, the syringe structure comprising a syringe (9) and a handle portion (10), the syringe (9) being fixedly connected to the handle portion (10), and the syringe (9) being provided with a needle portion (11) at an end away from the handle portion (10); A jacket structure, the jacket structure comprising a jacket shell a (6) and a jacket shell b (7), wherein both the jacket shell a (6) and the jacket shell b (7) are provided with positioning grooves (8); The inner core structure is slidably arranged inside the syringe structure, and the outer sleeve structure is used to fix the syringe and the inner core.

2. A medical retractable positioning marker device according to claim 1, characterized in that: The syringe (9) is hollow, the inner core structure can penetrate and slide inside the syringe (9), and the end head (1) is arranged at the head end close to the needle head (11).

3. A medical retractable positioning marker device according to claim 1, characterized in that: A clamping ring (12) is fixedly connected to the outer shell a (6), and a clamping block (13) is fixedly connected to the outer shell b (7), and the clamping ring (12) and the clamping block (13) are clamped together.

4. A medical retractable positioning marker device according to claim 1, characterized in that: One end of the connecting spring (2) is in contact with the end head (1), and the fixing ring (3) is evenly arranged on the connecting spring (2).

5. A medical retractable positioning marker device according to claim 1, characterized in that: An end of the inner core (23) away from the end head (1) is fixedly connected to an operating portion (24).

6. A medical retractable positioning marker device according to claim 1, characterized in that: The fixing ring (3) adopts a hollow spherical structure, and the material of the fixing ring (3) is one of a metal alloy and a non-metallic polymer.

7. A medical retractable positioning marker device according to claim 1, characterized in that: The plurality of fixing rings (3) are connected via a connecting spring (2); the connecting spring (2) is a spiral spring or a wavy spring; the cross section of the connecting spring (2) is a circular spring or a rectangular spring; the longitudinal cross section of the wavy spring is wavy; the material of the connecting spring (2) is a metal alloy material or a polymer material.

8. The medical retractable positioning marker device according to claim 1, characterized in that: The fixing ring (3) is provided with color markings, and the fixing ring (3) is provided with different colors at certain intervals.

9. The medical retractable positioning marker device according to claim 1, characterized in that: The handle portion (10) and the operating portion (24) are arranged in the positioning groove (8).

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