Dynamic protection liver ablation auxiliary device based on shape memory material

Abstract

The utility model discloses a dynamic protection liver ablation auxiliary device based on a shape memory material, which comprises a puncture catheter and further comprises an operating rod inserted into the puncture catheter, a protection mechanism is arranged at one end of the operating rod and wraps a tumor to isolate other visceral organs, an injection port is formed in one end of the operating rod, and the other end of the operating rod is connected with the puncture catheter. The filling opening penetrates through the operating rod, and a connector is arranged at the other end of the operating rod and used for being connected with the protection mechanism. The dynamic protection liver ablation auxiliary device based on the shape memory material is high in safety, the protection mechanism is made of a memory metal material and can be opened along with temperature changes, visceral organs and tumors are softly isolated from each other, and mechanical damage to surrounding tissue caused by rigid expansion of the balloon is avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a dynamic liver protection ablation auxiliary device based on shape memory materials. Background Technology

[0002] Radiofrequency or microwave ablation for liver tumors plays a vital role in clinical practice as a commonly used minimally invasive treatment. However, this procedure presents a significant challenge: the high temperatures generated by radiofrequency or microwave ablation can easily cause thermal damage to surrounding organs, such as the intestines, stomach, and diaphragm. Current techniques to address this issue primarily rely on balloon inflation or fluid injection to isolate the heat source, but these methods have considerable drawbacks. Firstly, the procedure is complex and cumbersome. For example, with traditional balloons, external fluid injection is required to induce inflation, adding extra difficulty and demanding greater precision from medical personnel. Secondly, there is a risk of injury; the rigid inflation of the balloon can potentially cause mechanical damage to surrounding tissues, causing unnecessary pain for the patient. Furthermore, there is the risk of residual material; the inability to completely remove all materials post-surgery leaves residues that could become a source of infection, significantly increasing the patient's risk of post-operative infection and creating uncertainty throughout the treatment process. Utility Model Content

[0003] The purpose of this invention is to provide a dynamic liver ablation auxiliary device based on shape memory material to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dynamic liver ablation auxiliary device based on shape memory materials, comprising a puncture catheter, and further comprising:

[0005] An operating rod is inserted into the puncture catheter, and one end of the operating rod is provided with a protective mechanism that wraps around the tumor and isolates it from other organs.

[0006] Preferably, one end of the operating lever has an inlet that extends through the operating lever, and the other end of the operating lever has a connector for connecting to the protection mechanism.

[0007] Preferably, there are at least two protection mechanisms, each located at one end of the operating lever. One end of each protection mechanism is provided with a connecting seat, and the other end of each protection mechanism is provided with a contact.

[0008] Preferably, all of the protection mechanisms are provided with a connecting seat at one end and a contact at the other end.

[0009] Preferably, the protective mechanism is made of shape memory metal, which opens with temperature changes to isolate organs from contact with the tumor.

[0010] Preferably, one end of the puncture catheter is provided with a puncture head to facilitate puncture.

[0011] Preferably, the puncture catheter is hollow to accommodate the operating rod and the protective mechanism.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This dynamic liver ablation aid device based on shape memory material is easy to operate. Through the cooperation of the puncture catheter and the operating rod, the protective mechanism at one end of the operating rod can directly wrap around the tumor and isolate other organs, eliminating the need for external fluid injection and expansion like traditional balloons. This greatly simplifies the surgical procedure and reduces the difficulty of medical operations.

[0014] This dynamic liver ablation aid device based on shape memory material is highly safe. The protective mechanism is made of shape memory metal, which can open with temperature changes to gently isolate the organ from the tumor and avoid mechanical damage to the surrounding tissue caused by the rigid expansion of the balloon.

[0015] This dynamic liver ablation aid device based on shape memory material has minimal potential risks. The device has a complete structure and a high degree of integration, eliminating the problem of materials that cannot be completely recovered after surgery. It effectively reduces the risk of infection and provides a more reliable and efficient guarantee for radiofrequency or microwave ablation of liver tumors. Attached Figure Description

[0016] Figure 1 This is a rear view schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a formal schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the operating lever and protection mechanism of this utility model;

[0019] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0020] In the diagram: 1. Puncture catheter; 11. Puncture head; 2. Operating rod; 21. Infusion port; 22. Connector; 3. Protective mechanism; 31. Connecting seat; 32. Contact. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-2 This utility model provides a technical solution: a dynamic liver ablation auxiliary device based on shape memory material, including a puncture catheter 1 for skin puncture, thereby facilitating the entry of the operating rod 2 and the protective mechanism 3 into the patient's body. One end of the puncture catheter 1 is equipped with a puncture head 11 for convenient puncture. This design allows for better insertion into the patient's body to complete the surgery. The puncture catheter 1 is hollow, allowing the operating rod 2 and the protective mechanism 3 to be inserted into the patient's body. It also allows for the insertion of a high-temperature device generated by radiofrequency or microwave to perform surgery on the patient, and serves to accommodate the operating rod. The system includes a 2 and a 3, and also includes an operating rod 2 inserted into the puncture catheter 1. The operating rod 2 is used to control the 3 and ensure that the 3 can protect the tumor. The 3 is provided at one end of the operating rod 2. The 3 is made of shape memory metal and will maintain its extended effect under the influence of high temperature generated by radio frequency or microwave. The 3 needs to be preheated before use to ensure that it is in the open state when it enters the patient's body. The high temperature generated by radio frequency or microwave only maintains the open state of the 3. The 3 wraps around the tumor and isolates it from other organs.

[0023] First, the puncture catheter 1 pierces the skin with its puncture tip 11. Its hollow structure provides a channel for the operating rod 2 and protective mechanism 3 to enter the patient's body, and also facilitates the insertion of devices that generate high temperatures via radiofrequency or microwave for surgical procedures. The operating rod 2 is inserted into the puncture catheter 1 and is used to control the protective mechanism 3. The protective mechanism 3 is made of shape-memory metal and is preheated before surgery so that it is in an open state when it enters the patient's body. Upon reaching the tumor site, the high temperature generated by radiofrequency or microwave acts on the protective mechanism 3, keeping it extended, thereby encapsulating the tumor, isolating it from surrounding organs, preventing thermal damage to surrounding organs, and ensuring the smooth progress of the surgery.

[0024] Please see Figure 3-4One end of the operating lever 2 has an infusion port 21. The design of the infusion port 21 facilitates the infusion of medication or saline solution into the wound during or after surgery, thereby facilitating subsequent operations. The infusion port 21 runs through the operating lever 2. The operating lever 2 is mainly used to control the protective mechanism 3, so that the protective mechanism 3 can cover the tumor, thereby isolating the organs from contact with the tumor and ensuring that the high temperature generated by radiofrequency or microwave will not damage other organs. The other end of the operating lever 2 has a connector 22. The connector 22 has a polygonal design, and the number of sides is the same as the number of protective mechanisms 3, ensuring that the protective mechanism 3 can open in a bowl shape and finally cover the patient's tumor. The connector 22 is used to connect with the protective mechanism 3.

[0025] The operating lever 2 plays a crucial connecting and auxiliary control role in this device. Its infusion port 21, designed to penetrate the wound, allows for precise infusion of medication or saline solution during or after the procedure, creating favorable conditions for subsequent operations such as wound cleaning and promoting healing. The main body of the operating lever 2 controls the protective mechanism 3, ensuring its precise positioning to effectively envelop the tumor, isolating it from organs and preventing radiofrequency or microwave high-temperature waves from affecting surrounding organs. The polygonal connector 22 at the other end of the operating lever 2 is specially designed according to the number of protective mechanisms 3. The consistent number of sides ensures a stable connection with the protective mechanisms 3, guaranteeing that they open in an ideal bowl shape, stably enveloping the tumor and facilitating the safe and orderly progress of the entire ablation procedure.

[0026] There are at least two protective mechanisms 3. When opened, the protective mechanisms 3 have a bowl-like structure and are located at one end of the operating lever 2. This design ensures that the operating lever 2 can control the protective mechanisms 3. One end of the protective mechanism 3 is provided with a connecting seat 31, which ensures that the protective mechanism 3 can be stably connected to the connecting head 22. The other end of the protective mechanism 3 is provided with a contact 32, which is spherical. In order to prevent the protective mechanism 3 from accidentally injuring the organ with a tumor due to the sharp end point, causing unnecessary damage to the patient, all protective mechanisms 3 are provided with a connecting seat 31 at one end and a contact 32 at the other end. The structure of each protective mechanism 3 is the same, and the curvature after opening is consistent. The protective mechanism 3 is made of shape memory metal and opens with temperature changes. Before using the protective mechanism 3, it is necessary to preheat it to ensure that it isolates the organ from contact with the tumor when entering the human body.

[0027] When using the dynamic liver ablation auxiliary device based on shape memory materials, the operating lever 2 is the core control component of the device, playing a significant role in connection and auxiliary control. One end of the operating lever 2 has a through-hole inlet 21, which allows for the infusion of anti-inflammatory and bactericidal solutions or saline solution into the wound as needed during surgery. This removes residual tissue debris and blood clots from the wound, creating a favorable environment for subsequent operations such as wound cleaning and healing, thus improving surgical safety and postoperative recovery. The operating lever 2 is mainly used to control the protective mechanism 3. Medical staff manipulate the operating lever 2 based on preoperative images and intraoperative detection results. The protective mechanism 3 moves precisely and positions itself, tightly enveloping the tumor and isolating it from contact with surrounding organs. It confines the high temperature of radiofrequency or microwave to the tumor area, reducing collateral damage to normal tissues during surgery. The polygonal connector 22 at the other end of the operating rod 2 is customized according to the number of protective mechanisms 3, with the same number of sides, and can seamlessly connect with the protective mechanism 3 to form mechanical support. After the surgery begins, as the operating rod 2 is advanced, the protective mechanism 3 opens in a bowl shape under the traction guidance of the connector 22, wrapping the tumor and helping the ablation surgery to proceed safely, orderly and efficiently, ensuring the treatment of liver tumor patients.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dynamic protective liver ablation assisting device based on shape memory material, comprising a puncture catheter (1), characterized in that, Also includes: An operating rod (2) is inserted into the puncture catheter (1). One end of the operating rod (2) is provided with a protective mechanism (3), which wraps around the tumor and isolates it from other organs.

2. The dynamic liver ablation assisting device based on shape memory material of claim 1, wherein: One end of the operating lever (2) is provided with a filling inlet (21), which passes through the operating lever (2). The other end of the operating lever (2) is provided with a connector (22), which is used to connect with the protection mechanism (3).

3. The dynamic liver ablation assisting device based on shape memory material according to claim 1 or 2, characterized in that: There are at least two protection mechanisms (3), each located at one end of the operating lever (2). One end of the protection mechanism (3) is provided with a connecting seat (31), and the other end of the protection mechanism (3) is provided with a contact (32).

4. The dynamic liver ablation assisting device based on shape memory material of claim 3, wherein: All of the protection mechanisms (3) are provided with a connecting seat (31) at one end and a contact (32) at the other end.

5. The dynamic protective liver ablation assisting device based on shape memory material according to claim 1 or 4, characterized in that: The protective mechanism (3) is made of shape memory metal, which opens as the temperature changes to isolate organs from contact with the tumor.

6. The dynamic liver ablation assisting device based on shape memory material of claim 1, wherein: One end of the puncture catheter (1) is provided with a puncture head (11) to facilitate puncture.

7. The dynamic liver ablation assisting device based on shape memory material according to claim 1 or 6, characterized in that: The puncture catheter (1) is hollow and is used to accommodate the operating rod (2) and the protective mechanism (3).

Images