Thrombus blockage removing device
By designing a thrombus removal device, which uses a balloon to block blood vessels and a filter to separate and break up thrombi, and combining the properties of nickel-titanium alloy and crushed titanium alloy, the problem of incomplete thrombus removal in catheter thrombectomy technology is solved, achieving complete thrombus removal and shortening the operation time.
Patent Information
- Application Number
- CN202422951255.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing catheter-based thrombectomy techniques, when treating thrombosis, often fail to completely break up larger thrombi or remove smaller thrombi, leading to a high recurrence rate. Furthermore, traditional methods leave residues on the blood vessel wall and require lengthy procedures.
A thrombus removal device is designed, comprising a support tube, a front end assembly, a filter assembly, and a handle assembly. The device utilizes a balloon to block blood vessels, a filter to separate and break up the thrombus, and a suction catheter to remove it. By combining the flexibility of nickel-titanium alloy with the properties of pinching titanium alloy, the device achieves complete removal of the thrombus.
It achieves the blocking and complete removal of smaller thrombi, reduces residual blood vessel walls, shortens operation time, and improves surgical efficiency.
Smart Images
Figure CN223715771U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of medical apparatus and instruments, especially relates to a thrombus blockage removal device. BACKGROUND
[0002] Thrombus makes excessive lipid and other garbage in blood flow deposit on the thrombus formed by the thrombus on the damaged blood vessel wall. Once these thrombi fall off the blood vessel wall or directly form, they can block the blood vessels. For the traditional treatment method of thrombus, mainly adopts the blood vessel incision thrombus, catheter thrombolysis and vascular endarterectomy, wherein the blood vessel incision thrombus and vascular endarterectomy, the surgical trauma is very big. With the development of intraluminal intervention technology and the innovation of materials, this pioneering operation is gradually replaced by minimally invasive intraluminal therapy, which includes the commonly used catheter thrombus crushing technology. The catheter thrombus crushing technology is to send the thrombus crushing device into the thrombus formation site through the catheter, and the thrombus is crushed into small pieces or particles through mechanical vibration or impact, so as to reduce the blockage of the thrombus to the blood vessel. At present, the catheter thrombus crushing technology only crushes larger thrombus, and the smaller thrombus still exists, which is easy to appear platelet aggregation and has high recurrence rate. And the traditional catheter thrombus crushing is not easy to crush the thrombus, and there is some residual on the blood vessel wall, which needs to be treated many times, prolonging the operation time. SUMMARY
[0003] The utility model aims at providing a kind of thrombus blockage removal device to solve the above technical problems.
[0004] To solve the above technical problems, the specific technical scheme of the thrombus blockage removal device of the utility model is as follows:
[0005] A kind of thrombus blockage removal device, including support pipe, front end component, filter screen component and handle component, the front end component is fixedly connected with filter screen component, the support pipe end is fixedly connected with the front end of handle component, the front end component is fixedly installed in support pipe front end, the filter screen component is fixedly installed on support pipe, and the rear end of front end component;The front end component has balloon, balloon is wrapped on support pipe, the position of support pipe wrapped by balloon has vent, it is the passage for balloon to provide gas, so that balloon expands or shrinks, and the expanded balloon is used to block blood vessel passage.
[0006] Further, the front end component further includes distal end spring, the distal end spring is located at the distal end of support pipe, and is fixedly connected with support pipe, and the distal end spring has flexibility.
[0007] Further, one end of balloon is connected with distal end spring.
[0008] Further, the filter screen assembly comprises a filter screen and a distal connecting pipe and a proximal connecting pipe, the filter screen and the distal connecting pipe and the proximal connecting pipe are sleeved on the supporting pipe, the distal end and the proximal end of the filter screen are welded in the distal connecting pipe and the proximal connecting pipe respectively, the proximal connecting pipe is fixed on the supporting pipe, and the distal connecting pipe carrying the filter screen is slidingly connected on the supporting pipe.
[0009] Further, the filter screen assembly and the front end assembly have an elongated section at one end, and the distal connecting pipe carrying the filter screen is slidingly connected on the supporting pipe and moves in the elongated section to drive the filter screen to expand or retract.
[0010] Further, the filter screen is mainly made of titanium alloy, the head end is dense, and the tail end is sparse, and is used for separating and crushing thrombus in a blood vessel.
[0011] Further, the supporting pipe is a nickel-titanium alloy pipe.
[0012] Further, the handle assembly comprises a torque handle, a Y-shaped tee, a one-way air valve and a stop valve, the supporting pipe is fixed at the tail end of the torque handle, the Y-shaped tee is fixed at the tail end of the torque handle, one end of the Y-shaped tee is locked with the stop valve, and the other end is locked with the one-way air valve, the stop valve is used for releasing and sealing gas, and the one-way air valve is used for one-way gas entering.
[0013] The thrombus blocking and removing device has the following advantages: the filter screen head end of the thrombus blocking and removing device carries a balloon, can block the movement of small thrombus generated when the thrombus is crushed, and can completely remove the thrombus through the suction catheter. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a whole structure schematic view of the thrombus blocking and removing device.
[0015] Figure 2 It is an exploded structure schematic view of the thrombus blocking and removing device.
[0016] Figure 3 It is a structure schematic view of the front end assembly and the filter screen assembly.
[0017] Figure 4 It is a structure schematic view of the handle assembly.
[0018] Marked in the figure: 1, distal spring; 2, balloon; 3, filter screen; 41, distal connecting pipe; 42, proximal connecting pipe; 5, supporting pipe; 51, air hole; 6, torque handle; 7, Y-shaped tee; 8, one-way air valve; 9, stop valve. DETAILED DESCRIPTION
[0019] In order to better understand the purpose, structure and function of the utility model, the utility model of a thrombus plug removal device is further described in detail below in combination with the drawings.
[0020] As Figures 1-4 The utility model discloses a thrombus plug removal device, including support pipe 5, front end component, filter screen subassembly and handle component, front end component is fixedly connected with filter screen subassembly, support pipe 5 end is fixedly connected with the front end of handle component, and front end component is fixedly installed at the front end of support pipe. Filter screen subassembly is fixedly installed on support pipe 5, and the rear end of front end component.
[0021] Front end component includes distal end spring 1 and balloon 2;Distal end spring 1 is located at the distal end of support pipe 5, and is fixed together with support pipe 5 by welding. Due to the flexibility of distal end spring 1, it can guide well in the blood vessel channel and protect the blood vessel wall from being scratched and penetrated. Balloon 2 is wrapped on support pipe 5, the rear end of distal end spring 1, one end is connected with distal end spring 1, and is fixed and sealed with support pipe 5 by using glue. The position of support pipe 5 wrapped by balloon 2 has a vent hole 51, which provides a channel for balloon 2 to inflate or shrink, so that balloon 2 can inflate or shrink. The inflated balloon 2 is used to block the blood vessel passage.
[0022] Filter screen subassembly includes filter screen 3, distal end connecting pipe 41 and proximal end connecting pipe 42. Filter screen 3 and distal end connecting pipe 41 and proximal end connecting pipe 42 are sleeved on support pipe 5. The distal end and proximal end of filter screen 3 are welded in distal end connecting pipe 41 and proximal end connecting pipe 42 respectively. Proximal end connecting pipe 42 is fixed firmly on support pipe 5 by welding. Filter screen subassembly and front end component have an elongated section. Distal end connecting pipe 41 carrying filter screen 3 is slidingly connected on support pipe 5. In the elongated section, filter screen 3 can be extended or expanded. Filter screen 3 is mainly made of titanium alloy. The head end is dense, and the tail end is sparse. It can effectively peel off the thrombus attached to the blood vessel wall. The dense end of filter screen 3 can separate larger thrombus. Support pipe 5 is a nickel-titanium alloy pipe, which can provide high strength and flexibility.
[0023] Handle component includes torque handle 6, Y type tee joint 7, one-way air valve 8 and stop valve 9. The end of support pipe 5 is fixed on torque handle 6. The torque handle 6 is locked firmly by the self-locking function of torque handle 6. Y type tee joint 7 is sealed and fixed at the tail end of torque handle 6 by glue. One end of Y type tee joint 7 is locked with stop valve 9, and the other end is locked with one-way air valve 8. Stop valve 9 is used for gas release and sealing. One-way air valve 8 is used for one-way gas entry.
[0024] Working principle: the thrombus aspiration catheter port moves along the blood vessel, moves to the thrombus site, pushes the torque handle 6 to release the front section assembly, the filter screen assembly distal end connecting pipe 41 carries the filter screen 3 to shrink and expand along the extension section and wraps the thrombus, inserts the inflating device into the one-way air valve 8 to inflate, the gas inflates the balloon 2 along the support pipe 5 through the air hole 51 to block the blood vessel, rotates or pulls the torque handle 6, the filter screen 3 is broken and separated from the blood vessel wall along with the rotation or pulling of the torque handle 6, continues to pull the torque handle 6, and the thrombus fragments move to the thrombus aspiration catheter port, and the thrombus is removed by the suction of the thrombus aspiration catheter.
[0025] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.
Claims
1. A thrombus embolus removal device, comprising a support tube (5), a front end assembly, a filter screen (3) assembly and a handle assembly, the front end assembly is fixedly connected with the filter screen (3) assembly, the support tube (5) is fixedly connected with the handle assembly at the end, characterized in that, The front end assembly is fixedly installed at the front end of the support tube (5), and the filter screen (3) assembly is fixedly installed on the support tube (5) at the rear end of the front end assembly.
2. The thrombectomy device of claim 1, wherein, The front end assembly further comprises a distal spring (1) located at the distal end of the support tube (5) and fixedly connected with the support tube (5), and the distal spring (1) has flexibility.
3. The thrombectomy device of claim 1, wherein, One end of the balloon (2) is connected with the distal spring (1).
4. The thrombectomy device of claim 1, wherein, The filter screen (3) assembly comprises a filter screen (3), a distal connecting tube (41) and a proximal connecting tube (42), the filter screen (3), the distal connecting tube (41) and the proximal connecting tube (42) are sleeved on the support tube (5), the distal end and the proximal end of the filter screen (3) are welded in the distal connecting tube (41) and the proximal connecting tube (42) respectively, the proximal connecting tube (42) is fixed on the support tube (5), and the distal connecting tube (41) carrying the filter screen (3) is slidingly connected on the support tube (5).
5. The thrombectomy device of claim 4, wherein, The filter screen (3) assembly and the front end assembly have an elongated section at one end, the distal connecting tube (41) carrying the filter screen (3) is slidingly connected on the support tube (5) and moves in the elongated section to drive the filter screen (3) to stretch or expand.
6. The thrombectomy device of claim 4, wherein, The filter screen (3) is mainly made of titanium alloy, the head end is dense, and the tail end is sparse.
7. The thrombectomy device of claim 4, wherein, The support tube (5) is a nickel-titanium alloy tube.
8. The thrombectomy device of claim 4, wherein, The handle assembly comprises a torque handle (6), a Y-shaped tee joint (7), a one-way air valve (8) and a stop valve (9), the support tube (5) is fixed at the tail end of the torque handle (6), the Y-shaped tee joint (7) is fixed at the tail end of the torque handle (6), one end of the Y-shaped tee joint (7) is locked with the stop valve (9), and the other end is locked with the one-way air valve (8), the stop valve (9) is used for releasing and sealing gas, and the one-way air valve (8) is used for one-way gas entry.