CT-guided tumor ablation scanning positioning and ablation needle external fixator device

Abstract

The present invention relates to a CT-guided tumor ablation scanning positioning and a device for an external fixator for an ablation needle, which is characterized by comprising a transparent adhesive tape and a fixator, wherein the transparent adhesive tape is rectangular and is provided with nine evenly arranged X-ray development positioning lines parallel to the long side direction thereof; a fixator is provided on at least one of the long sides of the transparent adhesive tape, and the fixator comprises a fixing seat and a support rod, wherein the fixing seat is long and fixedly connected to the long side of the transparent adhesive tape, a slide groove is provided in the fixing seat, a slider is installed in the slide groove, and there is friction resistance between the slider and the slide groove; the lower end of the support rod is connected to the slider, and a caliper for holding and fixing the ablation needle is installed at the upper end of the support rod. The present invention has an ingenious structure, a reasonable design, and is easy to use. It can free the doctor's hands during microwave ablation, and can prevent the displacement of the ablation needle to avoid causing serious complications.

Description

Technical Field

[0001] The invention relates to a CT-guided tumor ablation scanning positioning and an ablation needle external fixator device, belonging to the technical field of medical devices. Background Art

[0002] In addition to surgical resection, medical chemotherapy, external radiation therapy, etc., a commonly used minimally invasive interventional treatment for tumors is percutaneous imaging-guided puncture ablation therapy, which is usually guided by CT. The advantages of this treatment are small trauma, few side effects, and fast postoperative recovery. It is suitable for many tumor patients who cannot tolerate surgery, and is often combined with medical chemotherapy or targeted drug therapy.

[0003] Commonly used ablation treatments include radiofrequency ablation, microwave ablation and cryoablation. Under the guidance of CT scan, the tip of the ablation needle 4 is inserted into the target lesion 6 in the human body 5 through percutaneous puncture (e.g. Figure 1 As shown). For many superficial tumors or tumors in special parts, it is difficult to fix the ablation needle 4 after entering the body. During the ablation process, the doctor needs to hold it with his hands all the time, which not only wastes manpower, but also easily causes the angle between the needle and the body to change during the ablation process. The needle tip of the ablation needle 4 deviates from the target lesion 6, affecting the efficacy. If there are even important tissues such as large blood vessels nearby, it is more likely to cause major treatment accidents. At present, there is no special ablation needle fixing device on the market. Therefore, it is necessary to design a device that integrates CT scanning positioning and ablation needle external fixator to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a CT-guided tumor ablation scanning positioning and ablation needle extracorporeal fixator device with an ingenious structure, reasonable design and convenient use.

[0005] According to the technical solution provided by the present invention: a CT-guided tumor ablation scanning positioning and an extracorporeal fixator device for an ablation needle is characterized in that it includes a transparent adhesive tape and a fixer, the transparent adhesive tape is rectangular, and is provided with nine evenly arranged X-ray development positioning lines parallel to its long side direction; a fixer is provided on at least one of the long sides of the transparent adhesive tape, and the fixer includes a fixing seat and a support rod, the fixing seat is long and fixedly connected to the long side of the transparent adhesive tape, a slide groove is provided in the fixing seat, a slider is installed in the slide groove, and there is friction resistance between the slider and the slide groove; the lower end of the support rod is connected to the slider, and the upper end of the support rod is provided with a caliper for holding and fixing the ablation needle.

[0006] As a further improvement of the present invention, the X-ray development positioning line is a thin line formed by smearing barium sulfate.

[0007] As a further improvement of the present invention, the support rod is a telescopic support rod, and there is damping between the rod sections of the telescopic support rod; the caliper is in an arc shape and can be elastically deformed, and the inner diameter of the caliper is smaller than the outer diameter of the ablation needle.

[0008] As a further improvement of the present invention, the lower end of the support rod and the slider, as well as the upper end of the support rod and the caliper are connected via a universal joint with damping.

[0009] As a further improvement of the present invention, the fixing seat and the transparent adhesive tape are bonded and connected and can be torn off and separated.

[0010] As a further improvement of the present invention, the slide groove is a T-shaped slide groove, and the slider is a T-shaped slider.

[0011] As a further improvement of the present invention, a wavy tooth is provided on one of the inner sides of the slide groove, and an arc-shaped protrusion meshing with the wavy tooth is provided on the corresponding side surface of the slider.

[0012] As a further improvement of the present invention, the fixer is entirely made of plastic.

[0013] As a further improvement of the present invention, the caliper is threadedly connected to the upper end of the support rod.

[0014] As a further improvement of the present invention, an anti-slip pad is preferably provided inside the caliper.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1) The present invention has an ingenious structure and a reasonable design. The several X-ray development positioning lines provided on the rectangular transparent adhesive tape can play a positioning role, which facilitates the accurate puncture of the ablation needle. After the ablation needle is punctured into place, the support rod in the fixator is opened, and the caliper at the upper end of the support rod is clamped on the ablation needle to provide support for the ablation needle. During the microwave ablation process, the doctor's hands can be freed, and the displacement of the ablation needle can be prevented to avoid serious complications.

[0017] 2) The fixing seat and the transparent adhesive tape in the present invention are bonded and can be torn off and separated. After the microwave ablation treatment is completed, the fixing device can be torn off the transparent adhesive tape, while the transparent adhesive tape is still attached to the patient's skin. The transparent adhesive tape can prevent potential bleeding and accelerate the healing of the puncture needle hole by its adhesive effect and hemostatic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the current operation application of ablation therapy.

[0019] Figure 2 It is a structural front view of an embodiment of the present invention.

[0020] Figure 3 This is a top view of the structure without the support rods according to an embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of a specific operation application of an embodiment of the present invention.

[0022] Explanation of the reference numerals: 1-transparent adhesive tape, 2-fixer, 2.1-fixing seat, 2.1a-slide groove, 2.1b-wavy teeth, 2.2-support rod, 2.3-slider, 2.3a-arc-shaped protrusion, 2.4-caliper, 2.5-universal joint 3-X-ray development positioning line, 4-ablation needle, 5-human body, 6-target lesion. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0024] like Figure 1 As shown, the embodiment discloses a CT-guided tumor ablation scanning positioning and ablation needle extracorporeal fixator device, comprising a transparent adhesive tape 1 and a fixator 2, wherein the transparent adhesive tape 1 is rectangular, and is provided with nine evenly arranged X-ray development positioning lines 3 parallel to its long side direction; a fixator 2 is provided on at least one of the long sides of the transparent adhesive tape 1, and the fixator 2 comprises a fixing seat 2.1 and a support rod 2.2, wherein the fixing seat 2.1 is long and fixedly connected to the long side of the transparent adhesive tape 1, a slide groove 2.1a is provided in the fixing seat 2.1, a slider 2.3 is installed in the slide groove 2.1a, and there is friction resistance between the slider 2.3 and the slide groove 2.1a; the lower end of the support rod 2.2 is connected to the slider 2.3, and the upper end of the support rod 2.2 is provided with a caliper 2.4 for holding and fixing the ablation needle 4.

[0025] like Figure 4As shown, when it is used, a suitable puncture position on the skin surface is selected according to the position of the target lesion 6 in the patient's body 5, and then a rectangular transparent adhesive tape 1 is attached to the skin surface. The transparent adhesive tape 1 is provided with several X-ray development positioning lines 3, which are displayed as lines after the CT scan, and can play a positioning role, so as to facilitate the accurate puncture of the ablation needle 4. After the ablation needle 4 is punctured in place, the support rod 2.2 in the fixator 2 is first opened, and then the caliper 2.4 at the upper end of the support rod 2.2 is tightly clamped on the ablation needle 4 to provide support for the ablation needle 4; during use, the position of the lower end of the support rod 2.2 can be adjusted by adjusting the position of the slider 2.3. Since there is friction resistance between the slider 2.3 and the slide groove 2.1a, the slider 2.3 will not slide arbitrarily in the slide groove 2.1a, ensuring stable support. In this way, the doctor's hands can be freed during microwave ablation, and the displacement of the ablation needle 4 can be prevented to avoid serious complications. In this embodiment, the X-ray development positioning line 3 is a thin line formed by applying barium sulfate, which utilizes the X-ray development effect of barium sulfate.

[0026] like Figure 1 As shown, in this embodiment, the support rod 2.2 is a telescopic support rod 2.2, and there is damping between the rod sections of the telescopic support rod 2.2. With this arrangement, the length of the support rod 2.2 can be adjusted according to the different angles of the ablation needle 4 to ensure the best support effect. The caliper 2.4 is in an arc shape and can be elastically deformed. The inner diameter of the caliper 2.4 is smaller than the outer diameter of the ablation needle 4, which is convenient to operate and reliable to fix.

[0027] like Figure 1 As shown, in this embodiment, the lower end of the support rod 2.2 and the slider 2.3, and the upper end of the support rod 2.2 and the caliper 2.4 are connected via a universal joint 2.5 with damping. With this arrangement, the relative positions of the caliper 2.4, the support rod 2.2 and the slider 2.3 have a certain adjustment range, which is more flexible and convenient to use.

[0028] In this embodiment, the fixing base 2.1 is bonded to the transparent adhesive tape 1 and can be torn off. With this arrangement, after the microwave ablation treatment is completed, the fixing base 2 can be torn off from the transparent adhesive tape 1, while the transparent adhesive tape 1 is still attached to the patient's skin. The transparent adhesive tape 1 can prevent potential bleeding and accelerate the healing of the puncture needle hole by using its adhesive effect and hemostatic components.

[0029] like Figure 1 As shown, in this embodiment, the slide groove 2.1a is a T-shaped slide groove 2.1a, and the slider 2.3 is a T-shaped slider 2.3. Such an arrangement can prevent the slider 2.3 from falling out of the slide groove 2.1a during the movement and adjustment process, and has high safety.

[0030] like Figure 2As shown, in this embodiment, a wavy tooth 2.1b is provided on one of the inner sides of the slide groove 2.1a, and an arc-shaped protrusion 2.3a meshing with the wavy tooth 2.1b is provided on the corresponding side of the slider 2.3. This arrangement can further prevent the slider 2.3 from sliding in the slide groove 2.1a, thereby improving the stability of the ablation needle 4 support.

[0031] In this embodiment, the entirety of the holder 2 is made of plastic, which can ensure that the holder 2 has sufficient structural strength. In addition, the fixing seat 2.1 in the holder 2 can also be made of cardboard.

[0032] In this embodiment, the caliper 2.4 is threadedly connected to the upper end of the support rod 2.2. With this arrangement, the caliper 2.4 can be replaced as required, thereby improving the convenience of operation.

[0033] In this embodiment, the caliper 2.4 is preferably provided with an anti-skid pad to improve the holding force of the caliper 2.4 on the ablation needle 4 and prevent the ablation needle 4 from accidentally sliding in the caliper 2.4. The anti-skid pad can be made of rubber or silicone material.

[0034] The above description is only a preferred embodiment of the present invention, and the above specific embodiment is not intended to limit the present invention. Various deformations and modifications may occur within the scope of the technical concept of the present invention, and any modification, modification or equivalent replacement made by a person of ordinary skill in the art based on the above description shall fall within the scope of protection of the present invention.

Claims

1. A CT-guided tumor ablation scanning positioning and ablation needle external fixator device, comprising a transparent adhesive tape (1) and a fixator (2), wherein the transparent adhesive tape (1) is rectangular and is provided with nine evenly arranged X-ray development positioning lines (3) parallel to the long side direction of the transparent adhesive tape (1); a fixator (2) is provided on at least one of the long sides of the transparent adhesive tape (1), and the fixator (2) comprises a fixing seat (2.1) and a support rod (2.2); the fixing seat (2.1) is long and fixedly connected to the long side of the transparent adhesive tape (1), a slide groove (2.1a) is provided in the fixing seat (2.1), and a slider (2.3) is installed in the slide groove (2.1a); the characteristics are as follows: The fixing seat (2.1) and the transparent adhesive tape (1) are bonded and connected and can be torn off and separated, and the inner layer of the transparent adhesive tape (1) contains a hemostatic component; the X-ray development positioning line (3) is a thin line formed by applying barium sulfate; there is friction resistance between the slider (2.3) and the slide groove (2.1a); the lower end of the support rod (2.2) is connected to the slider (2.3), and the upper end of the support rod (2.2) is equipped with a caliper (22) for holding and fixing the ablation needle (4). .4); the support rod (2.2) is a telescopic support rod (2.2), and there is damping between the rod sections of the telescopic support rod (2.2); the caliper (2.4) is in an arc shape and can be elastically deformed, and the inner diameter of the caliper (2.4) is smaller than the outer diameter of the ablation needle (4); the lower end of the support rod (2.2) and the slider (2.3) and the upper end of the support rod (2.2) and the caliper (2.4) are connected via a universal joint (2.5) with damping.

2. The CT-guided tumor ablation scanning positioning and ablation needle external fixator device as claimed in claim 1, characterized in that: The slide groove (2.1a) is a T-shaped slide groove (2.1a), and the slider (2.3) is a T-shaped slider (2.3).

3. The CT-guided tumor ablation scanning positioning and ablation needle external fixator device as claimed in claim 1, characterized in that: A wavy tooth (2.1b) is provided on one of the inner sides of the slide groove (2.1a), and an arc-shaped protrusion (2.3a) meshing with the wavy tooth (2.1b) is provided on the corresponding side of the slide block (2.3).

4. The CT-guided tumor ablation scanning positioning and ablation needle external fixator device as claimed in claim 1, characterized in that: The fixer (2) is entirely made of plastic.

5. The CT-guided tumor ablation scanning positioning and ablation needle external fixator device as claimed in claim 1, characterized in that: The caliper (2.4) is threadedly connected to the upper end of the support rod (2.2).

6. The CT-guided tumor ablation scanning positioning and ablation needle external fixator device as claimed in claim 1, characterized in that: An anti-skid pad is provided inside the caliper (2.4).

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