Real-time ultrasound percutaneous aspiration biopsy injection device

Abstract

The present invention provides a real-time ultrasonic percutaneous puncture aspiration biopsy injection device. The improved ultrasonic probe is an ultrasonic-guided percutaneous puncture bone positioning device. The puncture needle is a needle core structure with a triangular pyramid head. The puncture sleeve is sleeved on the main body of the puncture needle, and the tail end of the puncture sleeve has a grip. The outer surface of the puncture sleeve is provided with an external thread. The handle is a sleeve structure with an internal thread matching the external thread of the puncture sleeve, and the handle is screwed on the puncture sleeve through a thread. The other end of the puncture sleeve is introduced through the ultrasonic probe tunnel entrance of the improved ultrasonic probe and led out from the ultrasonic probe tunnel outlet. One end of the handle is clamped at the ultrasonic probe tunnel entrance of the improved ultrasonic probe. This is to solve the problem that when the lesion is adjacent to important nerves, blood vessels or organs, its percutaneous puncture is easy to damage its adjacent important structures and produce serious complications; at the same time, it is difficult to grasp the puncture depth and accurate position. It belongs to the field of medical operation instruments.

Description

Technical Field

[0001] The invention relates to a real-time ultrasonic percutaneous puncture aspiration biopsy injection device, belonging to the field of medical operation instruments. Background Art

[0002] When different tissues or organs of the human body are lesioned, their nature is unknown. In order to accurately find out the cause, a lesion biopsy is required to confirm the diagnosis and provide evidence-based medical evidence for further effective treatment. Conventional surgery has the disadvantages of large trauma, heavy bleeding, accelerated spread of lesions, and increased risk of radical surgery. The common instrument currently used is a bullet-type biopsy needle, which is an empirical percutaneous blind biopsy in the lesion. When the lesion is adjacent to important nerves, blood vessels or organs, its percutaneous puncture is easy to damage the adjacent important structures and cause serious complications; at the same time, it is difficult to grasp the puncture depth and accurate position. Summary of the invention

[0003] The present invention provides a real-time ultrasonic percutaneous puncture aspiration biopsy injection device to solve the problem that when the lesion is adjacent to important nerves, blood vessels or organs, percutaneous puncture is easy to damage the adjacent important structures and cause serious complications; at the same time, it is difficult to grasp the puncture depth and accurate position.

[0004] In order to solve the above problems, it is proposed to adopt such a real-time ultrasonic percutaneous puncture aspiration biopsy injection device, including a puncture needle, a puncture cannula, a handle and a modified ultrasonic probe. The modified ultrasonic probe is an ultrasound-guided percutaneous puncture bone positioning device. The specific structure is detailed in the prior application "CN201811320313.X". The puncture needle is a needle core structure with a triangular pyramid head. The puncture cannula is sleeved on the main body of the puncture needle, and the tail end of the puncture cannula is provided with a handle. The outer surface of the puncture cannula is provided with an external thread. The handle is a sleeve structure with an internal thread matching the external thread of the puncture cannula, and the handle is screwed on the puncture cannula through a thread. The other end of the puncture cannula is introduced through the ultrasonic probe tunnel entrance of the modified ultrasonic probe and led out from the ultrasonic probe tunnel outlet. One end of the handle is clamped at the ultrasonic probe tunnel entrance of the modified ultrasonic probe.

[0005] In the aforementioned injection device, the puncture sleeve is engraved with scales along the length direction to indicate the puncture depth;

[0006] In the aforementioned injection device, a limiting protrusion is provided on the side wall of the tail of the puncture needle, a limiting handle is provided at the tail end of the puncture needle, and a convex groove protruding outwards matching the limiting protrusion is provided at the tail of the puncture sleeve corresponding to the limiting protrusion. When in use, the limiting protrusion is clamped in the convex groove to prevent the puncture needle from rotating relative to the puncture sleeve.

[0007] Compared with the prior art, the present invention realizes safe puncture, aspiration, and biopsy, avoids damaging the puncture path and important structures around the lesion, and realizes minimally invasive advantages such as small trauma, accurate and effective puncture, safety, and low cost. When the lesion is located in the cervical spine, lumbar spine, pelvis, limb joints and other parts of the anatomical structure, conventional operations have the risk of damaging important structures such as the trachea, esophagus, jugular arteries and veins, nerves, abdominal organs, abdominal blood vessels and nerves, pelvic blood vessels and nerves and organs. If the puncture is performed under ultrasound guidance, it will be safer; combined with the transformation and application of the previous patent CN 109223133 A, safe puncture of the above complex parts can be safely achieved. Combined with the improvement of the ultrasound probe and the puncture, aspiration, biopsy and injection device of this patent, real-time judgment of the position of the ultrasound-guided puncture needle in the tissue can be achieved, and the puncture, aspiration, biopsy and drug injection of the lesion can be completed safely and effectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the present invention when it is in use;

[0009] Figure 2 It is a schematic diagram of the structure of the improved ultrasonic probe;

[0010] Figure 3 It is a schematic diagram of the structure of the puncture cannula;

[0011] Figure 4 It is a schematic diagram of the structure of the puncture needle, the puncture cannula and the handle when they are assembled;

[0012] Figure 5 It is a schematic diagram of the structure of the puncture needle. DETAILED DESCRIPTION

[0013] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0014] Example:

[0015] Reference Figures 1 to 5The present embodiment provides a real-time ultrasonic percutaneous puncture aspiration biopsy injection device, including a puncture needle 1, a puncture cannula 2, a handle 3 and a modified ultrasonic probe 4. The modified ultrasonic probe is an ultrasonic-guided percutaneous puncture bone positioning device. For details of the specific structure, please refer to the prior application "CN201811320313.X". The puncture needle 1 is a needle core structure with a triangular pyramid head and a diameter of 6 mm, which matches the inner diameter of the puncture cannula 2, so as to facilitate smooth puncture into the lesion 5 in the vertebral body. The puncture cannula 2 is sleeved on the main body of the puncture needle 1. The outer diameter of the puncture cannula 2 is 8 mm, which can smoothly pass through the ultrasonic exploration tunnel. The inner diameter of the puncture cannula 2 is 6 mm, which is convenient for effectively removing the lesion tissue for biopsy, treating the effusion lesion, and necessary The puncture cannula 2 is provided with a handle 21 at the rear end thereof, and a scale is engraved along the length direction on the puncture cannula 2 to indicate the insertion depth. The outer surface of the puncture cannula 2 is provided with an external thread, and the handle 3 is a sleeve structure with an internal thread matching the external thread of the puncture cannula 2, and the handle 3 is screwed on the puncture cannula 2 through a thread, and the other end of the puncture cannula 2 is introduced through the ultrasonic probe tunnel entrance 41 of the improved ultrasonic probe 4 and is led out from the ultrasonic probe tunnel exit 42, and one end of the handle 3 is clamped at the ultrasonic probe tunnel entrance 41 of the improved ultrasonic probe 4, and the position of the handle 3 on the puncture cannula 2 is adjusted to control the insertion depth of the puncture cannula 2 and the puncture needle 1.

[0016] A limiting protrusion 11 is provided on the side wall of the tail of the puncture needle 1, and a limiting handle 12 is provided at the tail end of the puncture needle 1. A convex groove 22 protruding outward and matching the limiting protrusion 11 is provided at the tail of the puncture sleeve 2 corresponding to the limiting protrusion 11. When in use, the limiting protrusion 11 is clamped in the convex groove 22 to prevent the puncture needle 1 from rotating relative to the puncture sleeve 2.

[0017] Reference Figure 1, taking the lesions in the cervical vertebra as an example, the lower part of the figure is a cross-sectional view of the cervical vertebra in transverse position, and inside there are trachea, esophagus, left carotid artery, left internal jugular vein, left cervical nerve root, right carotid artery, right internal jugular vein, cervical vertebral body, lesion 5 in the vertebral body, cervical spinal cord and other parts. When the patient needs anterior percutaneous positioning, firstly, the lesion segment and the specific puncture position are determined according to the CT or MRI data. The surgical operation uses the C-arm to locate the specific puncture position of the lesion segment and make surface marks. The right hand holds the modified ultrasound probe 4 and moves the modified ultrasound Probe 4 is appropriately pushed along the inner edge of the sternocleidomastoid muscle through the gap between the esophageal visceral sheath and the vascular and neural sheath toward the front edge of the vertebral body. Because the ultrasound positioning probe is tongue-shaped, when moderate pressure is applied along the inner edge of the mastoid muscle through the skin, it can adaptively find the gap and squeeze forward. The esophageal visceral sheath moves inward and the vascular and neural sheath moves outward. Blood vessels, esophagus, trachea, and nerves can be seen on both sides of the ultrasound probe. When important blood vessels, nerves, and organs are not shown in front, a safe puncture position is identified, and the puncture aspiration biopsy syringe is inserted along the central tunnel of the ultrasound probe. Ultrasound can clearly display the esophagus or blood vessels on both sides of the probe in real time, and use the handle 3 to adjust the puncture depth of the puncture needle 1 and the puncture cannula 2, safely insert the puncture cannula into the vertebral body lesion 5 for fixation, remove the puncture needle 1, and use negative pressure suction to remove the lesion tissue; if the lesion is liquid tissue, use a syringe to suck the liquid for testing and culture, and then the negative pressure interface can be replaced to connect the central negative pressure to fully suck out the accumulated fluid in the lesion; according to the needs of the disease, the injection of drugs in the lesion can be completed at the same time.

[0018] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Real-time ultrasonic percutaneous puncture aspiration biopsy injection device, characterized by: The invention comprises a puncture needle (1), a puncture sleeve (2), a handle (3) and a modified ultrasonic probe (4). The modified ultrasonic probe is an ultrasound-guided percutaneous bone puncture positioning device. The puncture needle (1) is a needle core structure with a triangular pyramidal head. The puncture sleeve (2) is sleeved on the main body of the puncture needle (1). The tail end of the puncture sleeve (2) is provided with a handle (21). The outer surface of the puncture sleeve (2) is provided with an external thread. The handle (3) is a sleeve structure with an internal thread matching the external thread of the puncture sleeve (2). The handle (3) is screwed onto the puncture sleeve (2) through a thread. The other end of the puncture sleeve (2) is introduced through an ultrasonic probe tunnel entrance (41) of the modified ultrasonic probe (4) and is led out through an ultrasonic probe tunnel exit (42). One end of the handle (3) is clamped at the ultrasonic probe tunnel entrance (41) of the modified ultrasonic probe (4). The puncture sleeve (2) is engraved with scales along the length direction to indicate the puncture depth; The side wall of the tail of the puncture needle (1) is provided with a limiting protrusion (11), and the tail end of the puncture needle (1) is provided with a limiting grip (12). The tail of the puncture sleeve (2) is provided with a convex groove (22) protruding outwards and matching the limiting protrusion (11) at the corresponding position of the limiting protrusion (11). When in use, the limiting protrusion (11) is clamped in the convex groove (22) to prevent the puncture needle (1) from rotating relative to the puncture sleeve (2).

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