Patent Application
20250114116
The present invention pertains to the field of medical devices, specifically to a thrombus removal device capable of scraping thrombi adhered to the inner walls of blood vessels.
The formation of thrombi within blood vessels is a common and perilous medical condition that can lead to severe consequences such as stroke and myocardial infarction. In addressing these thrombi, the medical community has continuously endeavored to develop more effective methods and devices to eliminate thrombi adhering to the inner walls of vessels, thus restoring normal blood flow.
Traditional thrombi treatment methods primarily involve pharmacological treatments and surgical interventions. Pharmacological treatments typically encompass anticoagulants, which prevent blood coagulation and reduce the formation of new thrombi. However, prolonged use of anticoagulants may heighten the risk of bleeding, potentially leading to excessive hemorrhage in certain cases. Surgical interventions, on the other hand, usually require the incision of a patient's vessels to manually remove the thrombi. While surgery can ensure the patency of vessels, it inherently carries significant risks and necessitates extended recovery periods. Furthermore, it might result in pain for the patient and an increased risk of post-operative complications.
Consequently, traditional methods might fall short of delivering optimal therapeutic outcomes in some situations. There is a pressing need for a more efficient, safe, and side-effect-minimized thrombi treatment method to offer patients better and safer therapeutic options.
In light of the above, the aim of the present invention is to overcome the aforementioned challenges by introducing a thrombus removal device that can autonomously navigate within blood vessels, scrape thrombi adhered to the vessel walls, and provide real-time visualization of the inner vessel environment during the treatment process. This ensures both precision in thrombi removal and safety concerning the vessel's structural integrity, ultimately delivering enhanced therapeutic outcomes for patients and rectifying the deficiencies of conventional thrombi treatment methods.
The aim of this invention is to overcome the shortcomings of the existing technology by introducing a thrombus removal device capable of autonomously navigating within blood vessels, scraping thrombi adhered to the vessel walls, and providing real-time visualization of the inner vessel environment during the treatment process. This ensures both precision in thrombi removal and safety concerning the vessel's structural integrity, ultimately delivering enhanced therapeutic outcomes for patients.
To address the above-mentioned problems and achieve the objectives of this invention, the technical means of this invention is realized as follows:
A thrombus removal device comprising: a shell internally equipped with an upper chamber, a lower chamber connected to the upper chamber, a left track positioned on a left end of the shell and connected to the lower chamber, and a right track positioned on the right end of the shell and connected to the upper chamber; a window positioned on a top surface of the shell and in communication with the upper chamber; a propulsion device situated on a rear end of the shell for advancing the shell within a blood vessel; a propulsion motor located within the upper chamber and linked to the propulsion device to drive the propulsion device; a camera lens situated within the upper chamber with the shooting direction of camera lens facing the window to capture images inside the blood vessel; a left thrombus scraper located within the left track, including a first drive wheel at a rear end of the left track, a first driven wheel at a front end of the left track driven by the first drive wheel, a first chain looped around and meshing with the first drive wheel and the first driven wheel, and a plurality of first scraper blades spaced on one side of the first chain protruding from the shell and driven by the first chain to scrape thrombi adhered to the inner wall of the blood vessel; a right thrombus scraper located within the right track, including a second drive wheel at a rear end of the right track, a second driven wheel at a front end of the right track driven by the second drive wheel, a second chain looped around and meshing with the second drive wheel and the second driven wheel, and a plurality of second scraper blades spaced on one side of the second chain protruding from the shell and driven by the second chain to scrape thrombi adhered to the inner wall of the blood vessel; a drive module positioned between the left and right thrombus scrapers and interfaced with the first drive wheel and the second drive wheel to facilitate the rotation of the first chain and the second chain; a drive motor connected to the drive module for actuating the rotation of the drive module, simultaneously driving the first chain and the second chain to rotate in both clockwise and counter-clockwise directions; a control module located in the lower chamber to initiate or halt the operation of the propulsion device, camera lens, left thrombus scraper, and right thrombus scraper; and at least one power supply module electrically connected to the propulsion motor, camera lens, drive motor, and control module to provide the necessary power for operation.
More preferably, wherein the rear end of the shell further includes a flow guide cover positioned over the propulsion device and equipped with a plurality of flow guide holes.
More preferably, wherein the propulsion device is composed of a propeller connected to the propulsion motor and rotates upon receiving power from the propulsion motor.
More preferably, wherein the shell includes an upper shell capable of accommodating the propulsion motor, the camera lens, the left thrombus scraper and the right thrombus scraper, and a lower shell positioned at the bottom end of the upper shell designed to house the control module and the power supply module.
More preferably, wherein the drive module includes a drive wheel assembly which is connected to the drive motor and interfaces with the first driving wheel and the second driving wheel, designed to receive power from the drive motor and to rotate accordingly.
More preferably, wherein the control module includes a circuit board electrically connected to the power supply module, a wireless receiver electrically connected to the circuit board, and a wireless transmitter electrically connected to the circuit board. The wireless receiver is capable of receiving control signals from a remote mobile device, and based on the signals, can remotely control the thrombus removal device.
More preferably, wherein a glass is also set at the position of the window.
More preferably, wherein the shell is bullet-shaped.
More preferably, wherein the first scraper and the second scraper are either arc-shaped or in the shape of the number “7”.
Compared with the prior art, the present invention can achieve the following functions and benefits:
Firstly, this invention, through the left thrombus scraper and the right thrombus scraper, can effectively scrape off thrombi adhered to the inner wall of blood vessels, thereby cleaning the vascular inner wall, which is conducive to the unblocking of vessels and the restoration of blood flow.
Secondly, by using a camera lens, medical professionals can observe the condition inside the blood vessel in real-time during the treatment, thus enhancing the precision of thrombus removal. At the same time, it ensures the safety of the vascular structure, reducing the risk of accidental damage.
Thirdly, the invention, with the propulsion device, can move autonomously within the blood vessel, alleviating the manual operation burden on medical staff. It also optimizes the operational process, shortens the operation time, and effectively enhances the overall operational efficiency and convenience.
Fourthly, this invention adopts a bullet-shaped shell, enabling the thrombus removal device to move with reduced resistance within the blood vessel, thereby improving the efficiency and smoothness of movement inside the vessel.
Fifthly, through the control module, medical professionals can remotely operate and monitor the thrombus removal device, such as activating the propulsion device, controlling the rotation direction of the first and second scraper blades, adjusting the angle of the camera lens, etc., thus enhancing the flexibility and convenience of operation.
With reference to the accompanying drawings and embodiments, a more detailed description of the present invention is provided below.
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The shell (1) is bullet-shaped, allowing the thrombus removal device to move within the blood vessel (101) with reduced resistance, thus enhancing its movement efficiency and fluidity within the blood vessel (101).
Further, the rear end of the shell (1) is also equipped with a flow guide cover (17) placed over the propulsion device (3) and fitted with multiple flow guide holes (171). The application of the flow guide cover (17) can prevent the risk of the propeller (31) coming into contact with the inner wall of the blood vessel (101), ensuring no damage to the vessel. Moreover, through the design of these flow guide holes (171), the blood from the blood vessel (101) can pass through, guiding the thrombus removal device to maintain the correct position and direction while advancing, achieving precise guidance.
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Furthermore, by utilizing the left thrombus scraper (6) and the right thrombus scraper (7), effective removal of thrombi (102) adhered to the inner wall of the blood vessel (101) can be achieved, thereby thoroughly cleaning the blood vessel (101) and promoting the restoration of blood flow. Additionally, the left thrombus scraper (6) and the right thrombus scraper (7) can be independently controlled in their rotational direction, allowing them not only to address single thrombus regions but also multiple thrombus areas, maximizing the comprehensiveness and efficiency of thrombus removal. Moreover, by connecting the first chain (63) and the second chain (73) to the first drive wheel (61), first driven wheel (62), second drive wheel (71), and second driven wheel (72), the first scraper blade (64) and the second scraper blade (74) can achieve continuous and stable rotation, preventing intermittent or vibrating motion. This ensures uniform coverage of the entire inner wall of the blood vessel (101) for efficient and comprehensive thrombus removal. Furthermore, by designing the first scraper blade (64) and the second scraper blade (74) in an arc shape or “7” shape, a closer contact with the inner wall of the blood vessel (101) is possible, reducing the chances of thrombus remnants and providing a more comprehensive thrombus removal effect.
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Through the control module (10), medical professionals can remotely operate and monitor the thrombus removal device, such as activating the propulsion device (3), controlling the rotation direction of the first scraper blade (64) and the second scraper blade (74), adjusting the angle of the camera lens (5), etc., enhancing the flexibility and convenience of the operation.
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The detailed description of the structure, features, and operation effects of the present invention has been given above based on the illustrated embodiment. However, the description provided is merely the preferred embodiment of the present invention. The scope of the invention is not limited to the drawings. Thus, any modifications that conform to the spirit of the present invention, as long as they fall within the scope of equivalent effects, should be considered within the patent scope of this invention.
