Medical hollow tube positioning marker device

Abstract

The application discloses a medical hollow tube positioning and marking device and belongs to the technical field of breast tumor marking. The device comprises a head, a fixing ring, an inner core, a hollow flexible tube and a needle cylinder. The fixing ring is fixed at intervals on the hollow flexible tube to form a long chain. The head is fixed at the head end of the long chain to form a marking body. The inner core penetrates into the hollow flexible tube to the head end to push the marking body to move in the needle cylinder. The front end of the needle cylinder is provided with a needle part. After puncture, the needle cylinder and the inner core are used to push the head outward and the marking body is pushed out and positioned. The marking body exposed outside is cut off. Multi-directional marking is used to form stereoscopic, linear and visual positioning. The marking body can be freely bent and is not easy to be cut off and displaced. The risk of infection or accidental injury caused by a traditional positioning steel wire is reduced. Breast cancer patients receiving neoadjuvant chemotherapy only need to be positioned and marked once and do not need to bear the secondary trauma of steel wire positioning again after traditional marking clamp marking.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of breast tumor marker, in particular to a medical hollow tube positioning marker device. BACKGROUND

[0002] For small volume benign and malignant breast tumors, it is difficult to touch, and usually the barbed positioning wire is used to penetrate into the tumor for positioning under the guidance of preoperative or intraoperative ultrasound, and then the tumor is removed. For palpable breast cancer, the tumor is usually removed by local expansion according to the tactile sensation of the surgeon's hand (i.e. local expansion of breast cancer or breast conserving surgery), but there are problems of too small resection range, high positive rate of incision margin, or too large resection range, too much normal gland removed, and thus affecting the postoperative appearance.

[0003] For patients receiving neoadjuvant chemotherapy for breast cancer, the tumor may shrink or even disappear during chemotherapy. Currently, to mark the tumor position, a marker clip is usually placed at the center or periphery of the tumor before chemotherapy, or a body surface projection tattoo is performed to mark the tumor position and range, so as to facilitate accurate tumor resection after neoadjuvant chemotherapy and breast conserving surgery. The traditional method usually requires the positioning of the barbed wire under the guidance of preoperative or intraoperative ultrasound to position the marker clip, complete the positioning of the tumor, and finally perform breast conserving surgery with the barbed wire and marker clip as a reference.

[0004] The positioning of the barbed wire and the marker clip for breast tumor requires ultrasound guidance. The barbed wire or the marker clip is located in the needle cylinder. After the front end of the puncture needle reaches the target area (the center or periphery of the tumor), the barbed wire or the marker clip is pushed out of the needle cylinder, and the barbed wire or the marker clip can be fixed to the target area.

[0005] The traditional treatment method currently has the following problems: 1. For small tumor positioning and resection, after the barbed wire completes the marking, the exposed part of the wire on the body surface may contact non-sterile objects. If the exposed wire is not thoroughly disinfected during surgery, it may cause wound contamination; 2. If the wire is positioned before surgery, the patient may experience local pain and discomfort during the waiting period before entering the operating room for surgery; 3. If not properly protected, the barbed needle structure at the end or front end of the positioning wire may cause injury to medical personnel, and the positioning wire may cause further damage to the patient if it shifts to a deeper position; 4. The marker clip is marked before neoadjuvant chemotherapy, and the positioning wire needs to be inserted again under the guidance of ultrasound before surgery to position the marker clip. The patient needs to undergo two positioning marks; 5. For calcified lesions, it is sometimes difficult to distinguish between the positioning marker clip and the calcified lesion under ultrasound, causing positioning difficulties or inaccuracy; 6. The marker clip is a point marker, and the breast gland has a certain degree of activity at different depths, which cannot complete accurate three-dimensional marking; 7. The fixation is not firm, and sometimes the barbed wire may be pulled out during surgery.

[0006] Therefore, in order to facilitate the complete placement of the marker in the body, meet the high requirement of breast gland activity on the flexibility of the marker, complete the stereotactic positioning of the tumor through one-time puncture, reduce the infection probability and the probability of accidental damage of the medical staff and the patient, and improve the stereoscopic, accuracy and visibility of the tumor position or range marking, a medical hollow tube positioning and marking device is provided. SUMMARY

[0007] The purpose of the present application is to provide a medical hollow tube positioning and marking device to solve the problem that the conventional positioning and marking method exposes the steel wire part outside the body after marking, which may increase the risk of wound infection, the steel wire needle and barb structure may cause accidental injury of the medical staff or the patient, and the positioning effect of the positioning clamp is poor, the ultrasound with calcification is difficult to distinguish, and the patient needs to use the steel wire needle for positioning again after neoadjuvant chemotherapy, causing secondary trauma.

[0008] To achieve the above purpose, the present application provides the following technical scheme: a medical hollow tube positioning and marking device, characterized in that: comprising a tip, a fixing ring, an inner core and a needle cylinder, a plurality of fixing rings are fixedly connected to form a long chain by a hollow soft tube, the tip is fixedly connected to one end of the long chain, the tip, the fixing ring and the hollow soft tube form a marker for marking the position and range of the tumor, the inner core drives the marker into the marking position and is fixed with the surrounding tissue, the needle cylinder is designed to be hollow, and the marker moves in the needle cylinder.

[0009] As a further preferred embodiment of the present technical solution: further comprising a fixed sleeve a and a fixed sleeve b, the fixed sleeve a is fixedly connected with a buckle, the fixed sleeve b is fixedly connected with a clamping block, and the buckle and the clamping block can be clamped;

[0010] As a further preferred embodiment of the present technical solution: one end of the needle cylinder is fixedly connected with a fixed tube handle, a fixed groove is formed in each of the fixed sleeve a and the fixed sleeve b, a fixed block is fixedly connected in the fixed groove, the fixed tube handle is arranged between the fixed sleeve a and the fixed sleeve b, and the fixed block fixes the fixed tube handle;

[0011] As a further preferred embodiment of the present technical solution: a plurality of fixing rings are arranged, the plurality of fixing rings are spaced from each other, and each of the plurality of fixing rings is fixedly connected to the hollow soft tube;

[0012] As a further preferred embodiment of the present technical solution: the fixing ring adopts a spherical structure, a groove can be arranged in the middle of the fixing ring according to needs, the material of the fixing ring is one of metal and non-metallic polymer, and a fluorescent imaging material is added to the non-metallic polymer material;

[0013] As a further preferred of the technical scheme: the fixing ring is provided with color marks, wherein different colors are arranged on the fixing ring at certain intervals.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1、The marking body is pushed into the marking position by the inner core in the present application, the part exposed outside the body can be completely cut off after marking, the marking body is completely left in the body, the problem of increased infection risk of the exposed part in the traditional positioning steel wire marking method is avoided, and the risk of postoperative infection is reduced.

[0016] 2、The use of the hollow hose makes the whole device more flexible, adapts to different surgical needs, and better adapts to the characteristics of human tissues, reducing discomfort. Through the structural design of the hollow hose and the inner core, the fixing ring can more effectively utilize the space in the puncture needle barrel, ensuring that the size of the fixing ring is appropriate and more easily fixed with the surrounding tissues; the hollow hose has a ring-shaped cross section, a larger cross section, and multiple metal wires can be added, which are not easy to be cut off during surgery;

[0017] 3、When used for tumor range marking, it is linear marking, compared with the point marking of the traditional metal marking clip, it provides a more three-dimensional marking effect, has high visibility, and helps to more accurately define the tumor boundary during surgery, and through multi-directional marking, the accuracy and efficiency of surgical resection can be improved;

[0018] 4、The head, the fixing ring and the hollow hose can form a stable fixing relationship with the surrounding tissues, maintain a stable position in the body, are not easy to shift or fall off due to traction during surgery, and ensure the durability and reliability of the marking;

[0019] 5、The fixing ring adopts a hollow spherical structure design, after the excess marking body is cut off, the remaining marking body end is round and blunt, which is not easy to cause iatrogenic injury to medical staff or patients, has high safety, and the spherical structure has a recess in the middle according to needs, increasing the firmness of fixation;

[0020] 6、After adding fluorescent materials in the fixing ring, the position of the marking body can be detected by using an infrared fluorescent probe, which is convenient and fast for finding the position of the marking body during surgery;

[0021] 7、For patients who use neoadjuvant chemotherapy, only one positioning is needed, which effectively reduces the trauma or pain of the patient caused by multiple positioning, and also avoids the problem that patients with multiple calcified breast cancer need to be positioned again after the completion of neoadjuvant chemotherapy, but the positioning may not be accurate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1It is the end and fixed ring structure schematic view of a medical hollow tube positioning marking device of the present application;

[0023] Figure 2 It is the schematic view of a medical hollow tube positioning marking device of the present application;

[0024] Figure 3 It is the connection structure schematic view of a medical hollow tube positioning marking device of the present application;

[0025] Figure 4 It is Figure 3 The enlarged view of the middle C;

[0026] Figure 5 It is the schematic view of one embodiment of a medical hollow tube positioning marking device of the present application;

[0027] Figure 6 It is the connection structure schematic view of one embodiment of a medical hollow tube positioning marking device of the present application;

[0028] Figure 7 It is Figure 6 The enlarged view of the middle D.

[0029] In the figure: 1, end; 2, hollow soft tube; 3, fixed ring; 4, inner core; 5, needle cylinder; 6, fixed shell a; 7, fixed shell b; 8, buckle; 9, clamping block; 10, fixed tube handle; 11, handle; 12, needle head; 13, fixed groove; 14, fixed block; 15, fixed shell c; 16, fixed shell d; 17, needle cylinder; 19, ear seat; 20, push-pull block; 21, positioning groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0031] Embodiment one

[0032] Please refer to Figures 1-4As shown, the present application provides a technical solution: a medical hollow tube positioning marking device, comprising a tip 1, a fixing ring 3, an inner core 4, a hollow hose 2 and a needle cylinder 5, the hollow hose 2 is fixedly connected with a plurality of fixing rings 3 to form a fixing ring long chain, the tip 1 is fixedly connected at one end of the fixing ring long chain, the needle cylinder 5 is designed as hollow, the tip 1, the fixing ring 3 and the hollow hose 2 move in the needle cylinder 5, the tip 1 and the fixing ring long chain form a marking body for marking the position of a tumor, and the inner core 4 drives the tip 1 and the fixing ring long chain to enter the marking position and is fixed with the surrounding tissue.

[0033] In this embodiment, specifically: further comprising a handle 11, the handle 11 is fixedly connected with the inner core 4, and the inner core 4 penetrates into the fixing ring 3 and the hollow hose.

[0034] In this embodiment, specifically: further comprising a fixed sleeve shell a6 and a fixed sleeve shell b7, the fixed sleeve shell a6 is fixedly connected with a buckle 8, the fixed sleeve shell b7 is fixedly connected with a clamping block 9, and the buckle 8 and the clamping block 9 can be clamped.

[0035] In this embodiment, specifically: one end of the needle cylinder 5 is fixedly connected with a fixed tube handle 10, the fixed sleeve shell a6 and the fixed sleeve shell b7 are both provided with a fixed groove 13, the fixed groove 13 is fixedly connected with a fixed block 14, the fixed tube handle 10 is arranged between the fixed sleeve shell a6 and the fixed sleeve shell b7, and the fixed block 14 fixes the fixed tube handle 10.

[0036] In this embodiment, specifically: a plurality of fixing rings 3 are arranged, the plurality of fixing rings 3 are spaced from each other, and the plurality of fixing rings 3 are all fixedly connected on the hollow hose 2.

[0037] In this embodiment, specifically: the fixing ring 3 adopts a spherical structure, a groove is arranged in the middle of the fixing ring 3 according to needs, and the material of the fixing ring 3 is one of metal and non-metallic polymer, wherein fluorescent imaging material is added in the non-metallic polymer material.

[0038] In this embodiment, specifically: the fixing ring 3 is provided with a mark, wherein different colors are arranged on the fixing ring 3 according to certain intervals.

[0039] Method and working principle: when positioning the breast tumor site, first place the fixed tube handle 10 and handle 11 between the fixed shell a6 and the fixed shell b7, and place the fixed tube handle 10 and handle 11 between the fixed slot 13, and fix the fixed shell a6 and the fixed shell b7 into a whole through the buckle 8 and the clamping block 9, at this time the fixed tube handle 10 and handle 11 are clamped between the fixed shell a6 and the fixed shell b7, and the fixed tube handle 10 and handle 11 are clamped and fixed under the action of the fixed block 14, avoiding displacement of the fixed tube handle 10 and handle 11, so that the overall structure remains stable, then the needle head part 12 of the needle cylinder 5 is inserted into the target position under the guidance of ultrasound, which can be inside the tumor or outside the tumor, then the fixed shell a6 and the fixed shell b7 are removed, the inner push handle 11 is pushed to make the inner core 4 drive the end head 1 and its connected fixed ring 3 and hollow hose 2 to move forward, and at the same time the needle cylinder 5 is pushed out, and then the end head 1, hollow hose 2 and part of the front end fixed ring 3 are exposed and fixed to the surrounding tissue, and then the inner core 4 and needle cylinder 5 are gradually withdrawn, so that the marking body formed by the end head 1, hollow hose 2 and fixed ring 3 is left in the body marking position. The excess part of the marking body exposed outside the body is cut off, wherein the fixed ring 3 is provided with different colors according to intervals, the number of fixed rings 3 left in the body is calculated and recorded by observing the color and number of the cut fixed rings, which is convenient for determining whether all the fixed rings 3 have been removed during the operation.

[0040] Embodiment two

[0041] Please refer to Figures 5-7 The present application provides a technical solution: the present application provides a technical solution: a medical hollow tube positioning and marking device comprises a fixed shell c15, a fixed shell d16 and a needle cylinder 5, the fixed shell c15 and the fixed shell d16 are provided with a positioning slot 21, one end of the hollow tube is fixedly connected with an ear seat 19, the ear seat 19 is clamped in the positioning slot 21, and one end of the inner core 4 is fixedly connected with a push-pull block 20.

[0042] Specific use and working principle: the fixed shell c15 and the fixed shell d16 can be combined into a whole to clamp and fix the ear seat 19 and the push-pull block 20, the needle head part 12 of the needle cylinder 5 is inserted into the target position under the guidance of ultrasound, the fixed shell c15 and the fixed shell d16 are removed, the inner core 4 is pushed in and the needle cylinder 5 is pushed out, and then the marking body formed by the end head 1, hollow hose 2 and fixed ring 3 is exposed from the needle cylinder and fixed to the surrounding tissue, and then the inner core 4 and needle cylinder 5 are gradually withdrawn, so that the marking body formed by the end head 1, hollow hose 2 and fixed ring 3 is left in the body marking position. The excess part of the marking body exposed outside the body is cut off, wherein the fixed ring 3 is provided with different colors according to intervals, the number of fixed rings 3 left in the body is calculated and recorded by observing the color and number of the cut fixed rings, which is convenient for determining whether all the fixed rings 3 have been removed during the operation.

[0043] Furthermore, the above detailed description of the medical hollow tube positioning marker device according to the preferred embodiments only describes two exemplary embodiments of the medical hollow tube positioning marker device according to the present application. However, it is understood by those skilled in the art that various combinations of the above end piece 1, the fixing ring 3, the hollow tube 2, and the inner core 4 can be made without departing from the concept of the present application.

[0044] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to these embodiments. Rather, it is the intention that modifications, changes, substitutions, and variations be made to the embodiments without departing from the spirit and scope of the application, which is defined solely by the claims and their equivalents.

Claims

1. A medical hollow tube positioning marking device, characterized by: It comprises an end (1), a hollow hose (2), a fixing ring (3), an inner core (4) and a syringe (5), wherein the hollow hose (2) fixedly connects a plurality of fixing rings (3) to form a long chain of fixing rings, wherein the plurality of fixing rings (3) are spaced apart from each other, and the fixing ring (3) adopts a spherical structure with a hollow portion for the inner core (4) to pass through, and the fixing ring (3) and the hollow hose (2) are made of the same material and are integrated into one body, and the diameter of the fixing ring (3) is the same as the inner diameter of the syringe (5), and the syringe (5) is of a hollow design, and the end (1) is fixedly connected to one end of the long chain of fixing rings, and the end (1), the fixing ring (3) and the hollow hose (2) move in the syringe (5), and the end (1) and the long chain of fixing rings form a marker for marking the position of a tumor, and the inner core (4) drives the end (1) and the long chain of fixing rings to enter the marked portion and fix them with the surrounding tissues; It also includes a handle (11), the handle (11) is fixedly connected to the inner core (4), and the inner core (4) is inserted into the fixing ring (3) and the hollow hose; It also includes a fixed housing a (6) and a fixed housing b (7), wherein the fixed housing a (6) is fixedly connected with a buckle (8), and the fixed housing b (7) is fixedly connected with a clamping block (9), and the buckle (8) and the clamping block (9) can be clamped together.

2. A medical hollow tube positioning marking device according to claim 1, characterized in that: One end of the syringe (5) is a needle head (12), and the other end is fixedly connected to a fixed tube handle (10). A fixing groove (13) is provided in each of the fixing housing a (6) and the fixing housing b (7). A fixing block (14) is fixedly connected in the fixing groove (13). The fixed tube handle (10) is provided between the fixing housing a (6) and the fixing housing b (7), and the fixing block (14) fixes the fixed tube handle (10).

3. A medical hollow tube positioning marking device according to claim 2, characterized in that: The fixing ring (3) is evenly and fixedly connected to the hollow hose (2).

4. A medical hollow tube positioning marking device according to claim 3, characterized in that: A groove is provided in the middle of the fixing ring (3). The material of the fixing ring (3) is a metal or a non-metallic polymer, wherein a fluorescent imaging material is added to the inside of the non-metallic polymer material, and one or more metal wires parallel to the long axis of the hollow hose are added to the hollow hose.

5. A medical hollow tube positioning marking device according to claim 4, characterized in that: The fixing ring (3) is provided with color markings, and different colors are provided on the fixing ring (3) at certain intervals.

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