技术领域technical field
本发明涉及一种医疗装置，更具体的说，是涉及一种流体驱动的血管内斑块清除装置。The present invention relates to a medical device, and more particularly, to a fluid-driven intravascular plaque removal device.
背景技术Background technique
针对于动脉栓塞、静脉血栓和动脉硬化闭塞症等疾病，随着近年来科技的发展，经皮腔内斑块切除术的治疗方法已得到了长足的发展。目前较为成熟的系统包括美国Covidien的SilverHawkTM外周斑块切除系统，美国Boston Scientific的PeripheralRotablatorTM Rotational Atherectomy System和JetstreamTM Atherectomy System，瑞士Straub Medical的美国Volcano的Atherectomy System和美国CSI的DiamondbackPeripheral Orbital Atherectomy System等。SilverHawkTM等为定向切除系统，由切削装置和收集切削碎屑的管状壳体(鼻腔)构成。该系统更易消除偏心性病变，但对远端栓塞的治疗存在适用性问题，需与其他治疗手段或保护装置配合使用。RotablatorTM为旋转式斑块去除系统，其具有可区别切削的特性，适用组织范围较广，但为保证去除效果和避免较大体积切屑在血管中游离的同时，需严格控制高转速的持续时间与设备发热等情况。JetstreamTM显著的特点为可提供持续性抽吸，有效消除动脉粥样硬化和血栓碎片并对切削碎片进行收集与排出，但其持续性抽吸压力与切屑回收实际效果的联系有待考证。操作简单，在旋切同时产生负压抽吸作用，且一定程度上对血管具有保护作用，但同时也存在残余切屑游离和失血过多的潜在风险。Diamondback的特点为在同一根导管通过转速控制而实现不同的旋切半径，且在同一时间内只与部分管壁接触，有效减少了热量的产生，但在控制旋切半径的同时对病变血管内壁具有潜在的破坏性。For diseases such as arterial embolism, venous thrombosis, and arteriosclerotic obliterans, with the development of science and technology in recent years, the treatment method of percutaneous transluminal atherectomy has been greatly developed. Currently more mature systems include the SilverHawkTM peripheral plaque excision system from Covidien in the United States, the PeripheralRotablatorTM Rotational Atherectomy System and JetstreamTM Atherectomy System from Boston Scientific in the United States, and the Straub Medical in Switzerland. American Volcano Atherectomy System and Diamondback of CSI in the United States Peripheral Orbital Atherectomy System, etc. SilverHawkTM and the like are directional resection systems, which consist of a cutting device and a tubular casing (nasal cavity) that collects cutting debris. This system is easier to eliminate eccentric lesions, but there are applicability problems in the treatment of distal embolism, and it needs to be used in conjunction with other treatment methods or protective devices. RotablatorTM is a rotary plaque removal system, which has the characteristics of distinguishable cutting and is suitable for a wide range of tissues. However, in order to ensure the removal effect and avoid the large volume of debris dissociated in the blood vessels, the duration of high rotation speed must be strictly controlled. and equipment heat etc. The remarkable feature of JetstreamTM is that it can provide continuous suction, effectively eliminate atherosclerosis and thrombus debris, and collect and discharge cutting debris. However, the relationship between its continuous suction pressure and the actual effect of chip recovery remains to be verified. The operation is simple, and negative pressure suction is generated during rotary cutting, and it has a protective effect on blood vessels to a certain extent, but at the same time, there are potential risks of free residual cuttings and excessive blood loss. Diamond back The characteristic is that the same catheter can achieve different rotary cutting radii through speed control, and only contact with part of the tube wall at the same time, which effectively reduces the heat generation, but it has a certain effect on the inner wall of the diseased blood vessel while controlling the rotary cutting radius. potentially destructive.
然而，在实际治疗中，药物疗法依然占据主流。一方面由于整套系统对医护人员提出了更高的要求，另一方面由于接受切除系统治疗可能出现的若干并发症及其对患者心理的影响。远端栓塞是一种较为常见的并发症，同时有可能导致其他并发症甚至生命危险。However, in actual treatment, drug therapy still occupies the mainstream. On the one hand, the entire system puts forward higher requirements for medical staff, and on the other hand, due to the possible complications and its psychological impact on patients after receiving the resection system. Distal embolism is a relatively common complication, which may lead to other complications and even life-threatening.
发明内容Contents of the invention
本发明的目的是为了克服现有技术中的不足，提供一种流体驱动的血管内斑块清除装置，可在有效工作的同时将去除部分排出体外，防止潜在的微小斑块切屑流动至远端，并避免了一般电机驱动斑块清除系统中驱动轴和护套等部件在工作状态下因温度过高、高转速等特性对人体系统的潜在危害，最大程度保证手术安全性和成功率，减少并发症的产生。The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a fluid-driven intravascular plaque removal device, which can expel the removed part from the body while working effectively, and prevent potential tiny plaque cuttings from flowing to the distal end , and avoid the potential harm to the human body system due to the characteristics of high temperature and high speed in the working state of the drive shaft and sheath and other components in the general motor-driven plaque removal system, so as to ensure the safety and success rate of the operation to the greatest extent, and reduce the The occurrence of complications.
本发明的目的是通过以下技术方案实现的。The purpose of the present invention is achieved through the following technical solutions.
本发明的一种流体驱动的血管内斑块清除装置，包括设置有抽吸管道、输送管道和填充管道的主轴，所述主轴由左至右设置有近端可膨胀辅助隔离腔、抽吸孔和远端可膨胀辅助隔离腔，所述抽吸孔与抽吸管道相连通，所述近端可膨胀辅助隔离腔和远端可膨胀辅助隔离腔均通过各自的填充孔与所述填充管道相连通，所述近端可膨胀辅助隔离腔和抽吸孔之间设置有研磨元件，所述研磨元件左侧面设置有叶轮，所述研磨元件和叶轮所在位置的主轴直径小于其左右两侧的主轴直径，所述输送通道设置于叶轮左侧的主轴部分，所述输送通道的右端口位于所述叶轮左侧主轴部分的右侧面，且与血管相连通。A fluid-driven intravascular plaque removal device of the present invention includes a main shaft provided with a suction pipe, a delivery pipe and a filling pipe, and the main shaft is provided with a proximal expandable auxiliary isolation chamber and a suction hole from left to right and the distal inflatable auxiliary isolation cavity, the suction hole communicates with the suction pipeline, the proximal inflatable auxiliary isolation cavity and the distal inflatable auxiliary isolation cavity are connected to the filling pipeline through respective filling holes Generally, a grinding element is set between the proximal expandable auxiliary isolation cavity and the suction hole, and an impeller is set on the left side of the grinding element, and the diameter of the main shaft where the grinding element and the impeller are located is smaller than the diameter of the left and right sides of the grinding element and the impeller. The diameter of the main shaft, the delivery channel is set on the main shaft part on the left side of the impeller, the right port of the delivery channel is located on the right side of the main shaft part on the left side of the impeller, and communicates with blood vessels.
所述叶轮左侧的主轴部分设置有辅助管道，所述辅助通道的右端口位于所述叶轮左侧主轴部分的右侧面，且与血管相连通。The main shaft part on the left side of the impeller is provided with an auxiliary pipeline, and the right port of the auxiliary channel is located on the right side of the main shaft part on the left side of the impeller and communicates with blood vessels.
所述输送管道和抽吸管道至少各设置一条。The conveying pipeline and the suction pipeline are provided with at least one respectively.
与现有技术相比，本发明的技术方案所带来的有益效果是：Compared with the prior art, the beneficial effects brought by the technical solution of the present invention are:
(1)本发明中，近端可膨胀辅助隔离腔和和抽吸孔之间设置有研磨元件，研磨元件左侧面设置有叶轮，叶轮经液体驱动后作为研磨元件的驱动装置，比含有驱动轴、护套等结构的长距离电机驱动方式安全性高，不易因温度过高产生热量或高速旋转等因素对血管造成损伤，避免其他不可预测的影响，最大程度保证手术安全性和成功率，减少并发症的产生；(1) In the present invention, a grinding element is arranged between the near-end expandable auxiliary isolation cavity and the suction hole, and an impeller is arranged on the left side of the grinding element, and the impeller is driven by a liquid as a driving device for the grinding element. The long-distance motor drive mode with shafts, sheaths and other structures has high safety, and it is not easy to cause damage to blood vessels due to factors such as excessive heat generation or high-speed rotation, avoiding other unpredictable effects, and ensuring surgical safety and success rate to the greatest extent. Reduce the occurrence of complications;
(2)本发明中，研磨元件和叶轮所在位置的主轴直径小于其左右两侧的主轴直径，叶轮左侧的主轴部分设置有输送通道和辅助管道，输送通道和辅助管道的右端口位于叶轮左侧主轴部分的右侧面，且均与血管相连通，辅助管道可起到输送管道和抽吸管道的作用，通过输送管道或辅助管道向血管内输送物质时，可驱动叶轮转动，进而带动研磨元件转动，进行切除作业；与此同时，输送物质可促使抽吸管道或辅助管道将切屑排出体外，快速建立循环系统，很好的保证血管内循环系统的稳定性；(2) In the present invention, the diameter of the main shaft at the location of the grinding element and the impeller is smaller than the main shaft diameters on the left and right sides of the impeller, and the main shaft part on the left side of the impeller is provided with a delivery channel and an auxiliary pipeline, and the right port of the delivery channel and the auxiliary pipeline is located on the left side of the impeller. The right side of the side main shaft part is connected with the blood vessels. The auxiliary pipe can play the role of conveying pipe and suction pipe. When the material is conveyed into the blood vessel through the conveying pipe or auxiliary pipe, it can drive the impeller to rotate, and then drive the grinding The component rotates to carry out the resection operation; at the same time, the conveying material can promote the suction pipeline or auxiliary pipeline to discharge the cuttings out of the body, quickly establish a circulatory system, and ensure the stability of the vascular circulatory system;
(3)本发明中，研磨元件和主轴可根据清除长度等实际情况进行选择，体外更换，较为灵活且具有降低使用成本的潜在优势。为其进一步优化设计和应用普及提供更可靠的保障，具有重要的实用意义。(3) In the present invention, the grinding element and the main shaft can be selected according to the actual situation such as the removal length, and can be replaced outside the body, which is more flexible and has the potential advantage of reducing the cost of use. It is of great practical significance to provide a more reliable guarantee for its further optimized design and application popularization.
附图说明Description of drawings
图1是本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2是图1中主轴的结构示意图；Fig. 2 is the structural representation of main shaft in Fig. 1;
图3是图1中A-A剖视图；Fig. 3 is A-A sectional view among Fig. 1;
图4是图1中B-B剖视图；Fig. 4 is B-B sectional view among Fig. 1;
图5是本发明在血管内构建局部循环腔室示意图；Fig. 5 is a schematic diagram of constructing a local circulation chamber in a blood vessel according to the present invention;
图6是本发明进行切除工作示意图；Fig. 6 is a schematic diagram of the present invention's excision work;
图7是本发明进行另一模式切除工作示意图。Fig. 7 is a schematic diagram of another mode cutting operation performed by the present invention.
附图标记:1主轴；2近端可膨胀辅助隔离腔；3远端可膨胀辅助隔离腔；4填充孔；5叶轮；6研磨元件；7抽吸孔；8抽吸管道；9填充管道；10输送管道；11辅助管道；12斑块；13切屑；14血管。Reference signs: 1 main shaft; 2 proximal expandable auxiliary isolation cavity; 3 distal expandable auxiliary isolation cavity; 4 filling hole; 5 impeller; 6 grinding element; 7 suction hole; 8 suction pipeline; 9 filling pipeline; 10 Delivery pipeline; 11 Auxiliary pipeline; 12 Plaque; 13 Cuttings; 14 Blood vessel.
具体实施方式detailed description
下面结合附图对本发明作进一步的描述。The present invention will be further described below in conjunction with the accompanying drawings.
如图1至图7所示，本发明的一种流体驱动的血管内斑块清除装置，包括主轴1，所述主轴1内设置有与所述主轴1一体结构的抽吸管道8、输送管道10和填充管道9，所述主轴1由左至右设置有近端可膨胀辅助隔离腔2、抽吸孔7和远端可膨胀辅助隔离腔3。所述抽吸孔7与抽吸管道8相连通，所述近端可膨胀辅助隔离腔2和远端可膨胀辅助隔离腔3均通过各自的填充孔4与所述填充管道9相连通，所述近端可膨胀辅助隔离腔2和远端可膨胀辅助隔离腔3均可由气囊等构成。所述抽吸管道8沿轴向由左设置至抽吸孔7即可，所述填充管道9沿轴向由左设置至远端可膨胀辅助隔离腔3的填充孔4即可。As shown in Figures 1 to 7, a fluid-driven intravascular plaque removal device of the present invention includes a main shaft 1, and the main shaft 1 is provided with a suction pipe 8 and a delivery pipe integrated with the main shaft 1. 10 and a filling pipe 9, the main shaft 1 is provided with a proximal expandable auxiliary isolation cavity 2, a suction hole 7 and a distal expandable auxiliary isolation cavity 3 from left to right. The suction hole 7 is communicated with the suction pipe 8, and the proximal expandable auxiliary isolation chamber 2 and the distal expandable auxiliary isolation chamber 3 are both communicated with the filling pipe 9 through respective filling holes 4, so that Both the proximal inflatable auxiliary isolation chamber 2 and the distal inflatable auxiliary isolation chamber 3 can be composed of airbags and the like. The suction pipe 8 can be arranged axially from the left to the suction hole 7 , and the filling pipe 9 can be arranged axially from the left to the filling hole 4 of the distal expandable auxiliary isolation cavity 3 .
所述近端可膨胀辅助隔离腔2和抽吸孔7之间设置有研磨元件6，所述研磨元件6左侧面设置有叶轮5，作为研磨元件6的驱动装置。所述研磨元件6和叶轮5所在位置的主轴直径小于其左右两侧的主轴直径，也就是说，所述近端可膨胀辅助隔离腔2套设于主轴1左端的大直径部分，所述研磨元件6和叶轮5套设于主轴1的小直径部分，所述远端可膨胀辅助隔离腔3设置于主轴1右端的大直径部分。所述叶轮5和研磨元件6的两端面与两侧的大直径主轴1部分之间留有一定间隙。所述叶轮5左侧的大直径主轴1部分由左至右设置有辅助管道11，辅助管道11与所述主轴设置为一体结构，辅助管道11可起到向血管14输送物质或往血管14外抽出物质的作用，所述辅助管道11的右端口位于所述叶轮5左侧大直径主轴部分的右侧面，且与血管14相连通。所述输送管道10设置于叶轮5左侧的大直径主轴部分，所述输送通道10的右端口位于所述叶轮5左侧大直径主轴部分的右侧面，且与血管14相连通。所述输送管道10和辅助管道11的右端口均位于叶轮的左侧面，这样在通过辅助管道11或输送管道10向血管14内输送物质时，可以直接驱动叶轮5旋转。A grinding element 6 is arranged between the proximal inflatable auxiliary isolation cavity 2 and the suction hole 7 , and an impeller 5 is arranged on the left side of the grinding element 6 as a driving device for the grinding element 6 . The diameter of the main shaft where the grinding element 6 and the impeller 5 are located is smaller than the main shaft diameters on the left and right sides thereof, that is to say, the proximal expandable auxiliary isolation cavity 2 is sleeved on the large diameter part of the left end of the main shaft 1, and the grinding The element 6 and the impeller 5 are sleeved on the small-diameter part of the main shaft 1 , and the distal expandable auxiliary isolation chamber 3 is set on the large-diameter part at the right end of the main shaft 1 . There is a certain gap between the two end surfaces of the impeller 5 and the grinding element 6 and the parts of the large-diameter main shaft 1 on both sides. The part of the large-diameter main shaft 1 on the left side of the impeller 5 is provided with an auxiliary pipeline 11 from left to right, and the auxiliary pipeline 11 is integrated with the main shaft. For the function of extracting substances, the right port of the auxiliary pipeline 11 is located on the right side of the large-diameter main shaft part on the left side of the impeller 5 and communicates with the blood vessel 14 . The delivery pipe 10 is arranged on the large-diameter main shaft part on the left side of the impeller 5 , and the right port of the delivery channel 10 is located on the right side of the large-diameter main shaft part on the left side of the impeller 5 and communicates with the blood vessel 14 . The right ports of the delivery pipeline 10 and the auxiliary pipeline 11 are located on the left side of the impeller, so that when the substance is delivered into the blood vessel 14 through the auxiliary pipeline 11 or the delivery pipeline 10, the impeller 5 can be directly driven to rotate.
所述输送管道10和抽吸管道8至少各设置一条。所述输送管道10、抽吸管道8、填充管道9和辅助管道11的位置关系也可根据需要进行设计，不局限于附图所示。The conveying pipeline 10 and the suction pipeline 8 are provided with at least one each. The positional relationship of the delivery pipeline 10, the suction pipeline 8, the filling pipeline 9 and the auxiliary pipeline 11 can also be designed according to needs, and is not limited to what is shown in the accompanying drawings.
本发明可根据清除长度、清除模式等，选择合适的研磨元件6及相关配合附件于体外进行更换，以满足不同斑块12清除需求，具有一定的灵活性和经济性。According to the removal length, removal mode, etc., the present invention can select a suitable grinding element 6 and related matching accessories for replacement outside the body to meet the removal requirements of different plaques 12, and has certain flexibility and economy.
基于上述流体驱动的血管内斑块清除装置的清除方法，包括以下步骤：The removal method based on the fluid-driven intravascular plaque removal device includes the following steps:
步骤一，体外组装流体驱动的血管内斑块清除装置。根据血管14内斑块12的实际情况，选择相应尺寸、样式的主轴1和研磨元件6；In step one, a fluid-driven intravascular plaque removal device is assembled in vitro. According to the actual situation of the plaque 12 in the blood vessel 14, select the main shaft 1 and the grinding element 6 of corresponding size and style;
步骤二，将组装好的流体驱动的血管内斑块清除装置下入到血管14内指定位置，使得研磨元件6位于斑块12处，近端可膨胀辅助隔离腔2和远端可膨胀辅助隔离腔3分别位于斑块12的两侧，自体外通过填充管道9经填充孔4分别向近端可膨胀辅助隔离腔2和远端可膨胀辅助隔离腔3填充介质，可以是气体、液体等物质，直至近端可膨胀辅助隔离腔2和远端可膨胀辅助隔离腔3膨胀，四周分别与血管14内壁接触，配合血管14、主轴1、输送管道10、抽吸管道8和辅助管道11，在短时间内构成局部循环腔室，对血管14形成堵塞作用，封闭性良好，为切除工作提供基础；Step 2, the assembled fluid-driven intravascular plaque removal device is lowered into the designated position in the blood vessel 14, so that the grinding element 6 is located at the plaque 12, the proximal expandable auxiliary isolation cavity 2 and the distal expandable auxiliary isolation cavity The cavities 3 are respectively located on both sides of the plaque 12, and the proximal expandable auxiliary isolation cavity 2 and the distal expandable auxiliary isolation cavity 3 are filled with media, which can be gas, liquid, etc. , until the proximal expandable auxiliary isolation cavity 2 and the distal expandable auxiliary isolation cavity 3 are inflated, and the surroundings are respectively in contact with the inner wall of the blood vessel 14, and cooperate with the blood vessel 14, the main shaft 1, the delivery pipeline 10, the suction pipeline 8 and the auxiliary pipeline 11. A local circulation chamber is formed in a short period of time, forming a blocking effect on the blood vessel 14, with good sealing performance, and providing a basis for the resection work;
步骤三，通过输送管道10或辅助管道11向上述步骤二建立的局部循环腔室以安全状态输送物质，驱动叶轮5转动，进而带动研磨元件6转动，研磨元件6对斑块12进行安全、有效的切除工作；与此同时，输送物质可促使抽吸管道8或辅助管道11将切屑13排出体外。系统在工作状态下，输送与抽吸的介质不仅能够驱动研磨元件6旋转进行清除工作，同时还能够促使形成循环，冲刷、带动切屑13排出体外，具有流体复用的功能。输送管道10或辅助管道11向血管14内以安全状态输送的物质包括但不限于生理盐水，通过向局部循环腔室内输送物质和向体外排出切屑13相配合，以保持血管14内局部循环腔室内部压力和环境稳定，并形成一定的循环冲刷作用。以下列出几种情形：Step 3, transport the substance to the local circulation chamber established in the above step 2 through the delivery pipeline 10 or the auxiliary pipeline 11 in a safe state, drive the impeller 5 to rotate, and then drive the grinding element 6 to rotate, and the grinding element 6 can safely and effectively treat the plaque 12 At the same time, the conveying material can promote the suction pipe 8 or the auxiliary pipe 11 to expel the cuttings 13 from the body. When the system is in working condition, the medium conveyed and sucked can not only drive the grinding element 6 to rotate for cleaning, but also promote the formation of a cycle, flush and drive the chips 13 out of the body, and has the function of fluid reuse. The substances transported by the delivery pipeline 10 or the auxiliary pipeline 11 into the blood vessel 14 in a safe state include but not limited to physiological saline. By cooperating with delivering the substance into the local circulation chamber and discharging the cuttings 13 outside the body, the local circulation chamber in the blood vessel 14 is maintained. The internal pressure and environment are stable, and a certain cyclic flushing effect is formed. Here are a few scenarios:
(1)通过输送管道10向上述步骤二建立的局部循环腔室输送物质，驱动叶轮5和研磨元件6旋转，进行切除工作，适时通过抽吸管道8和辅助管道11向体外排出切屑13；(1) Transport the substance to the local circulation chamber established in the above step 2 through the delivery pipeline 10, drive the impeller 5 and the grinding element 6 to rotate, perform the cutting work, and discharge the chips 13 outside the body through the suction pipeline 8 and the auxiliary pipeline 11 in due course;
(2)通过输送管道10和辅助管道11向上述步骤二建立的局部循环腔室输送物质，驱动叶轮5和研磨元件6旋转，进行切除工作，通过抽吸管道8向体外排出切屑13；(2) Transport the substance to the local circulation chamber established in the above step 2 through the delivery pipeline 10 and the auxiliary pipeline 11, drive the impeller 5 and the grinding element 6 to rotate, perform the cutting work, and discharge the chips 13 outside the body through the suction pipeline 8;
(3)通过输送管道10向上述步骤二建立的局部循环腔室输送物质，同时通过辅助管道11向体外排出物质，建立半局部循环，驱动叶轮5和研磨元件6旋转，进行切除工作，适时停止经辅助管道11向体外排出物质，启动抽吸管道8，建立局部循环，通过抽吸管道8向体外排出切屑13。(3) Transport the substance to the local circulation chamber established in the above step 2 through the delivery pipeline 10, and discharge the substance to the body through the auxiliary pipeline 11 at the same time, establish a semi-local circulation, drive the impeller 5 and the grinding element 6 to rotate, perform the cutting work, and stop in time The substance is discharged outside the body through the auxiliary pipe 11, the suction pipe 8 is activated, local circulation is established, and the cuttings 13 are discharged outside the body through the suction pipe 8.
步骤四，切除工作完成后，停止向血管14内输送物质，叶轮5和研磨元件6停止转动，停止切除工作，同时停止切屑13排出，关闭局部循环，通过填充管道9释放近端可膨胀辅助隔离腔2和远端可膨胀辅助隔离腔3内的介质。此时，完成全部切除工作，将本发明移出血管14；未完成全部切除工作，继续在血管14内移动本发明至另一指定位置，重复上述步骤(2)和(3)，以继续完成斑块12清除工作。Step 4: After the cutting work is completed, stop the delivery of substances into the blood vessel 14, stop the rotation of the impeller 5 and the grinding element 6, stop the cutting work, and stop the discharge of the chips 13 at the same time, close the local circulation, and release the proximal expandable auxiliary isolation through the filling pipe 9 Lumen 2 and the distal end are expandable to assist in isolating the media within lumen 3 . Now, finish all excision work, the present invention is moved out of blood vessel 14; Not complete all excision work, continue to move the present invention to another designated position in blood vessel 14, repeat above-mentioned steps (2) and (3), to continue to complete plaque Block 12 clears the job.
尽管上面结合附图对本发明进行了描述，但本发明并不局限于上述，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可以做出很多形式，这些均属于本发明的保护之内。Although the present invention has been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned, those of ordinary skill in the art, under the enlightenment of the present invention, without departing from the spirit of the present invention and the scope of protection of the claims, can also Many forms can be made, and these all belong to the protection of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482786.4ACN105852932B (en) | 2016-06-23 | 2016-06-23 | A kind of fluid-operated plaque within blood vessels remove device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482786.4ACN105852932B (en) | 2016-06-23 | 2016-06-23 | A kind of fluid-operated plaque within blood vessels remove device |
| Publication Number | Publication Date |
|---|---|
| CN105852932A CN105852932A (en) | 2016-08-17 |
| CN105852932Btrue CN105852932B (en) | 2018-01-19 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610482786.4AExpired - Fee RelatedCN105852932B (en) | 2016-06-23 | 2016-06-23 | A kind of fluid-operated plaque within blood vessels remove device |
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