Clinical locator for mammary gland treatment
By dividing the guide needle of the clinical positioner for breast treatment into a fixed needle tube and a thread delivery needle tube, and moving the thread delivery needle tube in the same way, the problems of inaccurate positioning and hand shaking in the prior art are solved, and higher positioning accuracy and a simplified operating process are achieved.
Patent Information
- Application Number
- CN202421789242.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-26
AI Technical Summary
Existing clinical locators for breast treatment can easily lead to inaccurate positioning when removing the guide needle, and the operator's hand shaking affects the positioning accuracy.
A clinical locator for breast therapy was designed, and the guide needle was divided into a fixed needle tube and a thread-feeding needle tube. The fixed needle tube was used to keep the guide wire position in the body unchanged, and instead moved the thread-feeding needle tube in the same way to reduce the impact of hand shaking.
It effectively prevents the positioning wire from shifting during the needle removal process, improves the accuracy of positioning, simplifies the operation steps, and reduces the patient's pain and discomfort.
Smart Images
Figure CN222969013U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, and particularly relates to a clinical locator for breast treatment. Background Technique
[0002] In the treatment process of breast diseases, accurately locating the lesion area is crucial. This helps surgeons accurately excise the lesion tissue during surgery, while protecting normal breast tissue as much as possible, reducing surgical trauma and complications. With the continuous development of imaging technologies such as X-ray, ultrasound, and MRI, the diagnostic level of breast diseases has been significantly improved. These technologies provide important technical support for the research and development of clinical locators for breast treatment. In the clinical diagnosis and treatment process of breast diseases, accurately locating the lesion position is the key link to ensure the accuracy and effectiveness of treatment. Traditional methods often rely on doctors' experience and touch, but this reliance is particularly insufficient when facing complex and variable breast anatomical structures and tiny lesions. Therefore, innovatively designing and applying a clinical locator for breast treatment not only greatly improves the positioning accuracy but also significantly optimizes the surgical process, reducing the pain of patients and the risk of postoperative complications. A breast positioning wire is an extremely thin wire, generally with a diameter between 0.1 - 0.2 mm and having a calcium marker. The guiding needle enters through the part located by breast X-ray or ultrasound before surgery, and the guiding needle penetrates the breast skin and pierces into the lesion site. The breast positioning wire and its guiding needle play a crucial role in breast biopsy and surgery, which can improve the surgical accuracy and reduce surgical trauma.
[0003] In the process of inserting the breast positioning wire in the prior art, first, the puncture needle needs to be guided to the breast target lesion under the guidance of imaging technology. Usually, the tip of the guiding needle is placed in the central area of the target lesion, and blood vessels are strictly avoided. The guide wire is gradually released until it cannot be pushed, and then the guiding needle is slowly removed. The excessive guide wire outside the skin is cut off with a sterile scissor (it is appropriate to retain about 5 - 7 cm of the guide wire outside the skin). However, during the process of removing the guiding needle, it is very easy for the guide wire to shift together with the guiding needle, resulting in inaccurate positioning. Moreover, the operator often uses a pulling-back method when removing the guiding needle, inevitably causing hand tremors, which affects the positioning. Content of the Utility Model
[0004] (1) Technical problems to be solved: Aiming at the deficiencies of the prior art, the utility model provides a clinical locator for breast treatment, which divides the guiding needle into a fixed needle tube and a wire-sending needle tube. While removing the wire-sending needle tube, the fixed needle tube is used to keep the position of the guide wire in the body unchanged, and the wire-sending needle tube is moved by pressing, greatly reducing the influence caused by the hand tremors of the operator.
[0005] (2) Technical solution: To achieve the above object, the present utility model provides the following technical solution: A clinical locator for breast treatment, comprising a pusher and a positioning wire. The positioning wire is installed inside the pusher. The pusher includes a handle, a fixed syringe, and a wire feeding syringe. A wire hole is designed to penetrate through the middle of the handle. Bolt holes are respectively designed on the upper and lower surfaces of the handle, which are opened from the outside of the handle to the internal wire hole. The bolt holes correspond to each other in position and are of the same size. The bolt holes are designed to be equipped with tightening bolts. A fixed syringe is designed in front of the handle. The fixed syringe is sleeved with a wire feeding syringe, and the wire feeding syringe has a degree of freedom of movement along the direction of the fixed syringe.
[0006] Preferably, the positioning wire is installed inside the wire hole, the fixed syringe, and the wire feeding syringe, and its length is greater than that of the pusher. When the tightening bolt is not tightened, the positioning wire has a degree of freedom of movement inside the pusher. A hook needle is designed at the head of the positioning wire.
[0007] Preferably, heat treatment is performed between the fixed syringe and the handle to achieve a fixed connection. The internal channel of the fixed syringe corresponds to the position of the wire hole. The inner diameter of the fixed syringe is the same as that of the positioning wire, and the diameter of the fixed syringe is the same as the inner diameter of the wire feeding syringe.
[0008] Preferably, a push ring is designed at the bottom outside of the wire feeding syringe. The push ring and the wire feeding syringe are fixedly connected by heat treatment. The upper and lower surface planes of the push ring are parallel to the front surface of the handle.
[0009] Preferably, the head of the wire feeding syringe is designed as an inclined cut surface to form a needle tip.
[0010] Preferably, anti-slip textures are designed on the outer surface of the handle. Beneficial effects
[0011] 1. For this clinical locator for breast treatment, the guiding needle is divided into a fixed needle tube and a wire feeding needle tube. The upper and lower surfaces of the handle are respectively designed with bolt holes that open from the outside of the handle to the internal wire holes. The positions of the bolt holes correspond to each other and have the same size. The bolt holes are designed with tightening bolts. And the length of the positioning wire is greater than that of the pusher. When the tightening bolts are not tightened, the positioning wire has freedom of movement inside the pusher. Therefore, during use, medical staff first place the positioning wire inside the pusher. Under the guidance of imaging technology, the wire feeding needle tube is used to puncture the positioning wire to the breast target lesion. Usually, the hooked end of the positioning wire head is placed in the central area of the target lesion, and blood vessels are strictly avoided to prevent unnecessary injuries and complications. Gradually release the positioning wire until it cannot be pushed. At this time, medical staff tighten the tightening bolts on the upper and lower surfaces of the handle respectively outside, so that the tightening bolts clamp the positioning wire inside the wire hole in the vertical direction for limiting, making the positioning wire lose the freedom of movement inside the pusher, effectively preventing the displacement of the positioning wire caused by external force or changes in the patient's internal environment, thus ensuring the accuracy of positioning. At this time, medical staff retract the wire feeding needle tube along the outer surface of the fixed needle tube to make the needle tip leave the patient's body, then open the tightening bolts on the handle, and pull the entire pusher out from the outside of the positioning wire to complete the delivery of the positioning wire. Compared with the prior art, during the needle withdrawal step, the displacement of the internal positioning wire will not be caused by the movement of the needle tube, making the positioning more accurate.
[0012] 2. For this clinical locator for breast treatment, a push ring is designed at the bottom outside of the wire feeding needle tube. The push ring is fixedly connected to the wire feeding needle tube by heat treatment. The upper and lower surface planes of the push ring are parallel to the front of the handle. This parallel design enables medical staff to intuitively feel the relative position between the push ring and the handle during operation, so as to more accurately control the needle withdrawal force and direction. At the same time, the parallel design also helps to reduce the resistance and friction caused by improper operation angles, further improving the smoothness of the needle withdrawal operation. In the prior art, when removing the guiding needle, operators often use the way of pulling back, which inevitably causes hand tremors and affects the positioning. However, for this device, a push ring is designed at the end of the wire feeding needle tube, and the push ring is parallel to the front of the handle. When medical staff need to perform the needle withdrawal operation, they can support the patient's chest with one hand to stabilize the patient's body position and relieve their discomfort, and the other hand is naturally placed on the handle, with the thumb against the back side of the handle as a fulcrum, and the index finger and middle finger easily hook both sides of the push ring. At this time, medical staff only need to gently press the push ring to achieve a single-handed pressing type needle withdrawal similar to that when using a syringe. This operation method not only simplifies the complex steps in the traditional needle withdrawal process, but also makes the positioning wire and the wire feeding needle tube more stable during needle withdrawal, effectively avoiding positioning deviation caused by unstable factors such as hand tremors. It not only simplifies the operation steps, but also makes the positioning wire and the wire feeding needle tube more stable during needle withdrawal, and effectively relieves the patient's pain and discomfort. Description of the Drawings
[0013] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non - limiting embodiments read in conjunction with the accompanying drawings:
[0014] Figure 1 Schematic structural diagram of the present utility model in the extended state;
[0015] Figure 2 Schematic structural diagram of the present utility model in the retracted state;
[0016] Figure 3 Schematic structural diagram of the wire - feeding needle tube of the present utility model;
[0017] Figure 4 Schematic structural diagram of the handle and the fixed needle tube of the present utility model;
[0018] Figure 5 Rear - view schematic structural diagram of the handle of the present utility model.
[0019] In the figure: 1. Handle; 101. Bolt hole; 102. Tightening bolt; 103. Wire hole; 2. Fixed needle tube; 3. Pushing ring; 4. Wire - feeding needle tube; 5. Positioning wire; 501. Hook wire. Detailed Description of the Preferred Embodiments
[0020] The present application will be further described in detail below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model and are not intended to limit the utility model. Additionally, it should be noted that for the sake of description, only parts related to the utility model are shown in the drawings.
[0021] In the drawings of the embodiments of the present utility model: Different types of cross - hatching in the figure are not marked according to the national standard, nor are the materials of the components required. It is used to distinguish the cross - sectional views of the components in the figure.
[0022] Please refer to Figure 1-2 , a clinical locator for breast treatment, including a pusher and a positioning wire 5. The positioning wire 5 is installed inside the pusher. The pusher includes a handle 1, a fixed needle tube 2, and a wire - feeding needle tube 4. A wire hole 103 is designed to penetrate through the middle of the handle 1. Bolt holes 101 are respectively designed on the upper and lower surfaces of the handle 1, which are opened from the outside of the handle 1 to the internal wire hole 103. The bolt holes 101 correspond to each other in position and are of the same size. The bolt holes 101 are designed with matching tightening bolts 102; A fixed needle tube 2 is designed in front of the handle 1, and a wire - feeding needle tube 4 is sleeved outside the fixed needle tube 2. The wire - feeding needle tube 4 has a degree of freedom of movement along the direction of the fixed needle tube 2.
[0023] As shown in Figure 2As shown, the positioning wire 5 is installed inside the wire hole 103, the fixed needle tube 2, and the wire feeding needle tube 4, and its length is greater than that of the pusher. When the tightening bolt 102 is not tightened, the positioning wire 5 has freedom of movement inside the pusher. The head of the positioning wire 5 is designed with a barb 501. During use, medical staff first place the positioning wire 5 inside the pusher. Under the guidance of imaging technology, the positioning wire 5 is punctured into the breast target lesion using the wire feeding needle tube 4. Usually, the barb 501 end of the head of the positioning wire 5 is placed in the central area of the target lesion, and blood vessels are strictly avoided. The positioning wire 5 is gradually released until it cannot be pushed. At this time, medical staff tighten the tightening bolts 102 on the upper and lower surfaces of the handle 1 respectively outside, so that the tightening bolts 102 clamp the positioning wire 5 inside the wire hole 103 in the vertical direction for limiting, making the positioning wire 5 lose its freedom of movement inside the pusher. At this time, medical staff retract the wire feeding needle tube 4 along the outer surface of the fixed needle tube 2 to make the needle tip leave the patient's body, then open the tightening bolt 102 on the handle 1, and withdraw the entire pusher from the outside of the positioning wire 5 to complete the delivery of the positioning wire 5.
[0024] As Figure 4 shown, heat treatment is carried out between the fixed needle tube 2 and the handle 1 to achieve a fixed connection. The internal channel of the fixed needle tube 2 corresponds to the position of the wire hole 103, so that the positioning wire 5 can maintain its original shape when inside the fixed needle tube 2 and the wire hole 103, and its direction is accurate during movement, ensuring the accuracy of the positioning position. The inner diameter of the fixed needle tube 2 is the same as that of the positioning wire 5, and the diameter of the fixed needle tube 2 is the same as the inner diameter of the wire feeding needle tube 4. Therefore, the inner diameter of the wire feeding needle tube 4 is larger than that of the positioning wire 5. While the positioning wire 5 is fixed by the fixed needle tube 2 and the tightening bolt 102 inside the rear handle 1, the friction between the positioning wire 5 and the inner diameter of the wire feeding needle tube 4 is reduced, making the positioning wire 5 less likely to move during the needle withdrawal operation.
[0025] As Figure 1-3 shown, a push ring 3 is designed at the outer bottom of the wire feeding needle tube 4. The push ring 3 and the wire feeding needle tube 4 are fixedly connected by heat treatment. The upper and lower surface planes of the push ring 3 are parallel to the front of the handle 1. This parallel design enables medical staff to intuitively feel the relative position between the push ring 3 and the handle 1 during operation, so as to more accurately control the needle withdrawal force and direction. When medical staff need to perform the needle withdrawal operation, they can support the patient's chest with one hand to stabilize the patient's body position and relieve their discomfort. The thumb of the other hand presses against the rear side of the handle 1, and the index finger and middle finger hook the two sides of the push ring 3 to achieve a single-handed pressing needle withdrawal similar to that when using a syringe, making the positioning wire 5 and the wire feeding needle tube 4 more stable during needle withdrawal, and effectively relieving the patient's pain and discomfort.
[0026] As Figure 3 shown, the head of the wire feeding needle tube 4 is designed as an inclined section to form a needle tip so that it can more easily pierce the skin and enter the breast target lesion.
[0027] As Figure 5 shown, the outer surface of the handle 1 is designed with anti-slip textures to increase the friction between the operator's hand and the outer surface of the handle 1, reduce the influence caused by hand tremors, and prevent the handle 1 from slipping.
[0028] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will detail this application with reference to the drawings and in combination with the embodiments.
[0029] The above description is only the preferred embodiment of this application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solution formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A clinical locator for breast treatment, comprising a pusher and a positioning wire (5), wherein the positioning wire (5) is installed inside the pusher, and the pusher comprises a handle (1), a fixed needle tube (2) and a wire feeding needle tube (4), characterized in that: A wire hole (103) is designed to pass through the middle of the handle (1); bolt holes (101) are respectively designed on the upper surface and the lower surface of the handle (1) to extend from the outside of the handle (1) to the internal wire hole (103); the bolt holes (101) are located in corresponding positions and have the same size; the bolt holes (101) are matched with tightening bolts (102); a fixed needle tube (2) is designed in front of the handle (1); a wire feeding needle tube (4) is sleeved on the outside of the fixed needle tube (2); and the wire feeding needle tube (4) has the freedom of movement along the direction of the fixed needle tube (2).
2. A clinical locator for breast treatment according to claim 1, characterized in that: The positioning wire (5) is installed inside the wire hole (103), the fixing needle tube (2) and the wire feeding needle tube (4), and its length is greater than the pusher. When the tightening bolt (102) is not tightened, the positioning wire (5) has freedom of movement inside the pusher, and the head of the positioning wire (5) is designed with a hook wire (501).
3. A clinical locator for breast treatment according to claim 2, characterized in that: The fixed needle tube (2) and the handle (1) are heat treated to achieve a fixed connection, the internal channel of the fixed needle tube (2) corresponds to the position of the wire hole (103), the inner diameter of the fixed needle tube (2) is the same as the positioning wire (5), and the diameter of the fixed needle tube (2) is the same as the inner diameter of the wire feeding needle tube (4).
4. A clinical locator for breast treatment according to claim 3, characterized in that: A push ring (3) is provided at the bottom of the outer side of the wire feeding needle tube (4); the push ring (3) and the wire feeding needle tube (4) are fixedly connected by heat treatment; and the upper and lower surface planes of the push ring (3) are parallel to the front side of the handle (1).
5. A clinical locator for breast treatment according to claim 4, characterized in that: The head of the thread feeding needle tube (4) is designed as a beveled surface to form a needle head.
6. A clinical locator for breast treatment according to claim 1, characterized in that: The outer surface of the handle (1) is designed with an anti-slip texture.