Artery occlusion rotary cutting opening device

Abstract

The utility model discloses an artery occlusion rotary cutting opening device, which belongs to the technical field of medical instruments and comprises a grinding head main body, a rotary cutting bulge is arranged at the end part of the grinding head main body, a rotary grinding surface is arranged on the side surface of the grinding head main body, and plaques in an artery are subjected to rotary cutting and rotary grinding through the rotary cutting bulge and the rotary grinding surface; the first driving part is used for driving the grinding head main body to rotate; and the second driving part is used for driving the grinding head main body to feed in a spiral feeding manner. The grinding head of the rotary cutting opening device is provided with the rotary cutting protrusion and the rotary grinding face, so that the grinding head can conduct rotary cutting operation and rotary grinding operation at the same time, rotary cutting is used for processing and cutting soft plaques, rotary grinding is used for grinding hard plaques, universality of the device is effectively enhanced, and the rotary cutting opening device is suitable for more use scenes.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to an arterial occlusion rotational cutting and unblocking device. Background Art

[0002] Peripheral artery occlusion directly leads to limb ischemia and, in severe cases, amputation. The atherosclerotic plaque (hereinafter referred to as plaque), the substance that causes arterial occlusion, gradually calcifies, degenerates, and hardens over the course of the disease, making it difficult to open the occluded artery and remove the plaque with current endovascular interventional procedures.

[0003] Currently, peripheral arterial occlusion requires the use of rotary endovascular devices. However, existing rotary endovascular devices have the following problems:

[0004] 1. The existing rotary cutting and opening device has a simple grinding head structure and only has a rotary cutting function, which limits its use scenarios;

[0005] 2. The existing grinding heads of rotary cutting and opening devices have a low degree of integration, requiring the simultaneous use of multiple devices for rotary cutting, which affects the stability of the grinding heads during use;

[0006] 3. Existing rotary cutting and opening devices often use an axial linear reciprocating feeding method for the grinding head. This method has low control accuracy, cannot maintain stability at the feeding position, and has a small propulsion force. When encountering hard plaques, there is a problem of being unable to rotary cut;

[0007] 4. Existing rotary cutting and opening devices require the use of a separate detection device to identify plaques, which is complicated to operate. Utility Model Content

[0008] The utility model overcomes the deficiencies of the prior art and provides an arterial occlusion rotational cutting and opening device to solve the problems existing in the prior art.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is: an arterial occlusion rotational cutting and opening device, comprising

[0010] A grinding head body, wherein the end of the grinding head body is provided with a rotary cutting protrusion, and the side of the grinding head body is provided with a rotary grinding surface, and the plaque in the artery is rotary cut and abraded by the rotary cutting protrusion and the rotary grinding surface;

[0011] A first driving part, used for driving the grinding head body to rotate;

[0012] The second driving part is used to drive the grinding head body to feed in a spiral feeding manner.

[0013] In a preferred embodiment of the present invention, there are multiple rotary cutting protrusions and they are evenly distributed at the end of the grinding head body, and the rotary grinding surface is located on the side of the rear section of the grinding head body.

[0014] In a preferred embodiment of the present invention, the first driving part includes a first driver and a first transmission member, and the first driver drives the grinding head body to rotate through the first transmission member; the second driving part includes a second driver and a second transmission member, and the second driver drives the grinding head body to feed through the second transmission member.

[0015] In a preferred embodiment of the present invention, the first transmission member is a transmission shaft, and the first transmission member is fixedly connected to the grinding head body to drive the grinding head body to rotate.

[0016] In a preferred embodiment of the present invention, the second transmission member is an externally threaded transmission sleeve, which is provided with a sleeve on the outside and the sleeve is provided with an internal thread. The second driver drives the second transmission member to feed spirally, driving the grinding head body to feed synchronously.

[0017] In a preferred embodiment of the present invention, the grinding head body is installed at the end of the first transmission member, and the first transmission member is located inside the second transmission member and is coaxially arranged with the second transmission member.

[0018] In a preferred embodiment of the present invention, a suction channel and an injection channel are provided in the second transmission member for respectively sucking plaque debris and injecting liquid.

[0019] In a preferred embodiment of the present invention, two side holes are provided on the second transmission member, one of the side holes is communicated with the suction channel, and the other side hole is communicated with the injection channel.

[0020] In a preferred embodiment of the present invention, a plurality of hollow structures are provided at the end of the grinding head body, and the plurality of hollow structures are respectively connected to the suction channel and the injection channel.

[0021] In a preferred embodiment of the present invention, a detector is integrated on the grinding head body to identify and analyze plaques.

[0022] The present invention solves the defects in the background technology and has the following beneficial effects:

[0023] (1) The grinding head of the rotary cutting and opening device of the utility model is provided with a rotary cutting protrusion and a rotary grinding surface, so that the grinding head can perform rotary cutting and rotary grinding operations simultaneously. The rotary cutting is used to process and cut soft plaques, and the rotary grinding is used to grind hard plaques, which effectively enhances the versatility of the device and is suitable for more usage scenarios;

[0024] (2) The end of the device of the utility model integrates the rotary cutting protrusion, the rotary grinding surface, the suction channel and the injection channel, which has a high degree of integration, meets the multifunctional application of the grinding head, and effectively improves the stability of the grinding head during use;

[0025] (3) The utility model adopts spiral feeding, which has high control accuracy and large axial propulsion force, can effectively process hard plaques, and can be self-locked at any feeding position, thereby enhancing the stability of the grinding head;

[0026] (4) The rotary cutting and opening device of the present invention has a detector integrated at the grinding head position, which can identify and analyze the plaque, which is conducive to the subsequent effective treatment of the plaque. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below with reference to the accompanying drawings and embodiments;

[0028] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the utility model;

[0029] Figure 2 A cross-sectional view of a preferred embodiment of the present utility model;

[0030] Figure 3 This is an exploded view of a preferred embodiment of the present utility model;

[0031] Figure 4 This is a schematic structural diagram of the grinding head body in a preferred embodiment of the present utility model;

[0032] Figure 5 This is a structural diagram of the adapter of the preferred embodiment of the utility model;

[0033] In the figure: 10, grinding head body; 11, rotary cutting protrusion; 12, rotary grinding surface; 20, first transmission member; 30, sleeve; 40, second transmission member; 41, suction channel; 42, injection channel; 50, side hole; 60, hollow structure; 70, detector. DETAILED DESCRIPTION

[0034] The following diagrams illustrate various embodiments of the present invention. For clarity, many physical details will be included in the following description. However, it should be understood that these physical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0035] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] This embodiment provides an arterial occlusion rotational cutting and recanalization device, which has a high degree of integration, effectively enhances the versatility of the device, has a wider range of usage scenarios, high control accuracy, and improves the stability of the grinding head.

[0037] Combine Figures 1 to 3 As shown, the arterial occlusion rotary cutting and opening device of this embodiment includes a grinding head body 10, a first driving unit and a second driving unit. The grinding head body 10 performs rotary cutting and grinding on the plaque. The first driving unit drives the grinding head body 10 to rotate. The grinding head body 10 in the rotating state processes the plaque. The second driving unit drives the grinding head body 10 to feed. The grinding head body 10 in the feeding state can continuously process the plaque in the artery.

[0038] In this embodiment, a detector 70 is integrated on the grinding head body 10 to identify and analyze plaques. The detector 70 of this embodiment is preferably a spiral ultrasonic unit, which is arranged on the grinding head body 10 and can identify and analyze plaques in the artery during the rotation and feeding process of the grinding head body 10 to determine whether there are plaques and the nature of the plaques.

[0039] Combine Figure 1 and Figure 4As shown, the end of the grinding head body 10 of this embodiment is provided with a rotary cutting protrusion 11, and the side is provided with a rotary grinding surface 12. Preferably, the number of the rotary cutting protrusions 11 is multiple and they are evenly distributed at the front end of the grinding head body 10, and the rotary grinding surface 12 is located on the side of the rear section of the grinding head body 10. The rotary cutting protrusions 11 of this embodiment are blade-shaped protrusions, and the outer diameter of the rotary grinding surface 12 gradually increases from the front to the back of the grinding head body 10. During the rotation and feeding process of the grinding head body 10, the rotary cutting protrusions 11 perform rotary cutting on the plaques in the front, and during the rotary cutting process, the rotary grinding surface 12 synchronously performs rotary grinding on the plaques on the side, thereby realizing that the grinding head body 10 simultaneously takes into account the functions of rotary cutting and rotary grinding. The rotary grinding surface 12 is used to grind hard plaques, and the rotary cutting protrusions 11 are used to process and chop soft plaques, so as to enhance the versatility of the grinding head body 10 and make it suitable for more usage scenarios.

[0040] In this embodiment, a plurality of hollow structures 60 are provided at the end of the grinding head body 10. During the rotation and feeding process of the grinding head body 10, the peeling protrusions 11 and the abrasive surface 12 respectively peel and abrade the plaque. The broken plaque enters the hollow structures 60 and is discharged. The hollow structures 60 also reduce the mass of the grinding head body 10, improving its stability during rotation.

[0041] Combine Figures 1 to 3 As shown, the first driving part of this embodiment includes a first driver and a first transmission member 20. The first driver drives the grinding head body 10 to rotate through the first transmission member 20. The second driving part includes a second driver and a second transmission member 40. The second driver drives the grinding head body 10 to feed through the second transmission member 40. The first driver of this embodiment is a motor (not shown in the figure), the first transmission member 20 is a transmission shaft, the first transmission member 20 is fixedly connected to the grinding head body 10 to drive the grinding head body 10 to rotate, the second driver is a stepping motor (not shown in the figure), the second transmission member 40 is an externally threaded transmission sleeve, a sleeve 30 is provided on the outside of it, and the sleeve 30 is provided with an internal thread. The second driver can directly or indirectly (for example, through a flexible spring transmission) drive the second transmission member 40 to rotate. Through the threaded cooperation between the second transmission member 40 and the sleeve 30, the second transmission member 40 can drive the grinding head body 10 to feed synchronously through a spiral feeding method. This feeding method has high control accuracy and its axial propulsion force is large, so that the grinding head body 10 can effectively treat hard plaques and can be self-locking at any feeding position, thereby enhancing the stability of the grinding head body 10.

[0042] In this embodiment, the grinding head body 10 is installed at the end of the first transmission member 20, the first transmission member 20 is located inside the second transmission member 40, and is coaxially arranged with the second transmission member 40. The second transmission member 40 and the sleeve 30 are threaded together. When the second transmission member 40 rotates, the second transmission member 40 also moves axially along the sleeve 30 to drive the grinding head body 10 to feed. The feeding operation of the grinding head body 10 is realized by threaded matching, so that the grinding head body 10 rotates and realizes the feeding process at the same time, thereby enhancing the axial propulsion force of the grinding head body 10, and making the grinding surface 12 on the grinding head body 10 have stronger grinding and crushing ability, so as to crush the hard plaque, thereby improving the ability to cut and grind the plaque.

[0043] Combine Figure 1 and Figure 5 As shown, the second transmission member 40 of this embodiment is provided with a suction channel 41 and an injection channel 42, and a plurality of hollow structures 60 are connected to the suction channel 41 and the injection channel 42, respectively. The suction channel 41 is capable of aspirating plaque debris, directing the plaque debris through the hollow structures 60 into the suction channel 41 and then discharging it, facilitating rapid removal of the plaque debris. The injection channel 42 is used for liquid injection, injecting medication into the vessel lumen through the hollow structures 60 to facilitate rotational excision and atherectomy.

[0044] In this embodiment, two side holes 50 are provided on the second transmission member 40. One side hole 50 is connected to the suction channel 41, and the other side hole 50 is connected to the injection channel 42. The presence of the side holes 50 enables more efficient suction and injection operations.

[0045] In actual use, the arterial occlusion rotary cutting and opening device of this embodiment is integrated with a rotary cutting protrusion 11 and a rotary grinding surface 12 on the grinding head body 10. During the rotation and feeding process of the grinding head body 10, the rotary cutting protrusion 11 cuts and shreds the soft plaque, and the rotary grinding surface 12 grinds and processes the hard plaque, thereby enhancing the versatility of the grinding head body 10 and the ability to open arterial occlusion. The first driving unit drives the grinding head body 10 to realize the self-rotation of the grinding head body 10. The second driving unit adopts a stepping motor as the second driver and adopts a spiral stepping feeding method to feed the grinding head body 10. This feeding method has high control accuracy and its axial propulsion force is large, so that the grinding head body 10 can more effectively process hard plaques, and can be self-locked at any feeding position, thereby enhancing the stability of the grinding head body 10. In addition, a detector 70 is integrated on the grinding head body 10. The detector 70 is a spiral ultrasonic unit, which can be driven by the grinding head body 10 to synchronously realize spiral stepping feeding, identify and analyze the plaques in the artery to determine whether there are plaques and the nature of the plaques.

[0046] Although the present invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the present invention. That is, the methods, systems, or devices discussed above are all examples. Various configurations may omit, replace, or add various processes or components as appropriate. For example, in an alternative configuration, the method may be performed in an order different from that described, and / or various stages may be added, omitted, and / or combined. Moreover, the features described with respect to certain configurations may be combined in various other configurations. Different aspects and elements of the configurations may be combined in a similar manner. In addition, as technology develops, many elements are merely examples and do not limit the scope of this disclosure or the claims.

[0047] Specific details are given in the specification to provide a thorough understanding of the exemplary configurations including implementations. However, the configurations can be practiced without these specific details. For example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail to avoid obscuring the configurations. This description provides only example configurations and does not limit the scope, applicability, or configurations of the claims. On the contrary, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made to the functions and arrangements of the elements without departing from the spirit or scope of this disclosure.

[0048] Furthermore, although each operation may be described as a sequential process, many operations may be performed in parallel or simultaneously. Furthermore, the order of the operations may be rearranged. A process may have additional steps. Furthermore, examples of the methods may be implemented in hardware, software, firmware, middleware, code, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or code, the program code or code segments for performing the necessary tasks may be stored in a non-transitory computer-readable medium such as a storage medium, and the described tasks may be performed by a processor.

[0049] In summary, it is intended that the above detailed description be considered illustrative rather than restrictive, and it should be understood that the claims (including all equivalents) are intended to define the spirit and scope of the present invention. The above embodiments should be understood as merely illustrating the present invention and not to limit the scope of protection of the present invention. After reading the contents of the present invention, technicians can make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope defined by the claims of the present invention.

Claims

1. An arterial occlusion rotational cutting and opening device, characterized in that: include A grinding head body (10), wherein the end of the grinding head body (10) is provided with a rotary cutting protrusion (11), and the side of the grinding head body (10) is provided with a rotary grinding surface (12), and the plaque in the artery is rotary cut and abraded by the rotary cutting protrusion (11) and the rotary grinding surface (12); A first driving part, used for driving the grinding head body (10) to rotate; The second driving part is used for driving the grinding head main body (10) to feed in a spiral feeding manner.

2. The arterial occlusion rotational cutting and opening device according to claim 1, characterized in that: The number of the rotary cutting protrusions (11) is multiple and they are evenly distributed at the end of the grinding head body (10), and the rotary grinding surface (12) is located on the side of the rear section of the grinding head body (10).

3. The arterial occlusion rotational cutting and opening device according to claim 1, characterized in that: The first driving part includes a first driver and a first transmission member (20), and the first driver drives the grinding head body (10) to rotate through the first transmission member (20); the second driving part includes a second driver and a second transmission member (40), and the second driver drives the grinding head body (10) to feed through the second transmission member (40).

4. The arterial occlusion rotational cutting and opening device according to claim 3, characterized in that: The first transmission member (20) is a transmission shaft, and the first transmission member (20) is fixedly connected to the grinding head body (10) to drive the grinding head body (10) to rotate.

5. The arterial occlusion rotational cutting and opening device according to claim 3, characterized in that: The second transmission member (40) is an externally threaded transmission sleeve, with a sleeve (30) provided on the outside. The sleeve (30) is provided with an internal thread. The second driver drives the second transmission member (40) to feed spirally, driving the grinding head body (10) to feed synchronously.

6. The arterial occlusion rotational cutting and opening device according to claim 5, characterized in that: The grinding head body (10) is mounted on the end of the first transmission member (20); the first transmission member (20) is located inside the second transmission member (40) and is coaxially arranged with the second transmission member (40).

7. The arterial occlusion rotational cutting and opening device according to claim 3, characterized in that: The second transmission member (40) is provided with a suction channel (41) and an injection channel (42) for respectively sucking plaque debris and injecting liquid.

8. The arterial occlusion rotational cutting and opening device according to claim 7, characterized in that: The second transmission member (40) is provided with two side holes (50), one of the side holes (50) is communicated with the suction channel (41), and the other side hole (50) is communicated with the injection channel (42).

9. The arterial occlusion rotational cutting and opening device according to claim 7, characterized in that: The end of the grinding head body (10) is provided with a plurality of hollow structures (60), and the plurality of hollow structures (60) are respectively connected to the suction channel (41) and the injection channel (42).

10. The arterial occlusion rotational cutting and opening device according to claim 1, characterized in that: The grinding head body (10) is integrated with a detector (70) to identify and analyze plaques.

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