Blood vessel protection device for interventional operation

Abstract

The utility model relates to the technical field of blood vessel protection devices, and provides an interventional operation blood vessel protection device which comprises a tube body, a filter screen is fixedly connected to the bottom of the tube body, a connecting ring is fixedly connected to the bottom of the filter screen, a bottom plate is fixedly connected to the bottom of the connecting ring, and a filter head is fixedly connected to the top of the bottom plate. An injection hole located in the bottom plate is formed in one side of the filter head, a limiting rod slidably connected with the interior of the pipe body is arranged above the injection hole, a connecting ring is fixedly connected to the tail of the limiting rod, and a spring fixedly connected with the pipe body is fixedly connected to the inner side wall of the connecting ring; according to the thrombus collecting device, the filter head is arranged and is in a conical shape, so that thrombus adsorbed into the connecting ring cannot easily flow into a blood vessel again along with blood flow, and the filter screen can play a role in limiting the thrombus again, so that the thrombus is collected in the connecting ring.

Description

Technical Field

[0001] The utility model relates to the technical field of blood vessel protection devices, in particular to an interventional blood vessel protection device. Background Art

[0002] Interventional radiology, also known as interventional therapy, is an emerging discipline that has developed rapidly in recent years and integrates imaging diagnosis and clinical treatment. It is a general term for a series of technologies that use puncture needles, catheters and other interventional equipment to introduce specific instruments into the lesion site of the human body through natural channels or tiny incisions under the guidance and monitoring of imaging equipment such as digital subtraction angiography, CT, ultrasound and magnetic resonance imaging. It has become one of the three major clinical pillars alongside traditional internal medicine and surgery.

[0003] After searching, the existing patent (Announcement No.: 201520126880.7) discloses an interventional vascular protection device, including an outer catheter, a suction catheter, a guide wire and an inflatable mesh balloon. The diameter of the suction catheter is smaller than that of the outer catheter, and the distal end of the suction catheter has a suction port; the guide wire is inserted into the suction catheter and can slide freely in the suction catheter; the inflatable mesh balloon is arranged at the distal end of the guide wire and is located on the extension line of the distal end of the suction catheter, and the release state of the inflatable mesh balloon is cylindrical. The interventional vascular protection device provided by the utility model can protect blood vessels, increase blood flow at the lesion site, and can also collect thrombi and plaque fragments in blood vessels contacted during interventional surgery. In addition, part of the thrombus in the blood vessel can be sucked out by the suction catheter to achieve a better vascular protection effect.

[0004] However, in the above scheme, although the filter can collect the thrombus in the blood vessel, it lacks the effect of limiting the blood vessel during collection. Some thrombi may flow out of the filter under the flow of blood and flow back into the blood vessel.

[0005] In view of this, the utility model proposes an interventional blood vessel protection device. Utility Model Content

[0006] The utility model proposes an interventional blood vessel protection device, which solves the problem in the related art that although the filter can collect the thrombus in the blood vessel, it lacks the effect of limiting the blood vessel during the collection, and some thrombus may flow out of the filter under the flow of blood and flow back into the blood vessel.

[0007] The technical solution of the utility model is as follows: an interventional vascular protection device, comprising a tube body, a filter screen is fixedly connected to the bottom of the tube body, a connecting ring is fixedly connected to the bottom of the filter screen, a bottom plate is fixedly connected to the bottom of the connecting ring, a filter head is fixedly connected to the top of the bottom plate, and an injection hole located inside the bottom plate is provided on one side of the filter head.

[0008] Preferably, a limit rod slidably connected to the inside of the tube body is provided above the injection hole, the tail of the limit rod is fixedly connected to a connecting ring, the inner wall of the connecting ring is fixedly connected to a spring fixedly connected to the tube body, the top of the tube body is fixedly connected to a connecting port, a threaded groove is provided inside the connecting port, a connecting head is threadedly connected to the surface of the threaded groove, and an injection tube passes through the side of the tube body.

[0009] Preferably, the filter head is designed to be conical, and the small-aperture side of the filter head is designed to face upward.

[0010] Preferably, injection holes are provided inside the bottom plate and the filter screen, and the injection holes are arranged at the center of the bottom plate and the filter screen.

[0011] Preferably, the limiting rod and the tube body are arranged perpendicular to each other, and the tail of the limiting rod and the center of the injection hole are located on the same horizontal line.

[0012] Preferably, the tail of the limiting rod is designed as a rubber head, and the limiting rod forms an automatic sliding structure inside the tube body through a spring.

[0013] Preferably, the interior of the connector is hollow in design, and the connector forms a detachable structure through a threaded groove.

[0014] Preferably, the drug injection tube passes through the interior of the tube body and extends out of the bottom of the base plate, and the drug injection tube is a flexible hose.

[0015] The working principle and beneficial effects of the utility model are:

[0016] 1. In the utility model, a filter head is provided, and the filter head is in a cone shape, so that the thrombus inside the adsorbed connecting ring will not easily flow back into the blood vessel along with the blood flow, and the filter can again play a role in limiting the thrombus, so that the thrombus is collected inside the connecting ring.

[0017] 2. In the utility model, a limit rod is provided, which can limit and fix the catheter inserted into the injection hole to prevent the catheter from shifting inside the blood vessel under external force and damaging the inner wall of the blood vessel. In addition, a drug injection tube is provided, and drugs can be injected into the drug injection tube during the treatment of the patient, so that the drugs flow into the blood vessel and play an auxiliary treatment role. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the pipe structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the injection hole structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the filter head structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the joint structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the limit rod structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the drug injection tube structure of the utility model.

[0025] In the figure: 1. tube body; 2. filter screen; 3. connecting ring; 4. bottom plate; 5. filter head; 6. injection hole; 7. limit rod; 8. connecting ring; 9. spring; 10. threaded groove; 11. connecting port; 12. connecting head; 13. injection tube. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] The preferred embodiment of the interventional vascular protection device provided by the utility model is as follows Figures 1 to 6 As shown: an interventional vascular protection device includes a tube body 1, a filter screen 2 is fixedly connected to the bottom of the tube body 1, a connecting ring 3 is fixedly connected to the bottom of the filter screen 2, a bottom plate 4 is fixedly connected to the bottom of the connecting ring 3, a filter head 5 is fixedly connected to the top of the bottom plate 4, and an injection hole 6 located inside the bottom plate 4 is provided on one side of the filter head 5.

[0029] In this embodiment, the filter head 5 is designed to be conical, and the small-aperture side of the filter head 5 is designed to face upward. Because the filter head 5 is designed to be conical, and the side with a smaller aperture faces upward, when the thrombus passes through the filter head 5 and reaches the inside of the connecting ring 3, the thrombus will not easily flow out from the end with a smaller aperture of the filter head 5.

[0030] In this embodiment, an injection hole 6 is opened inside the bottom plate 4 and the filter 2. The injection hole 6 is set at the center of the bottom plate 4 and the filter 2. Under the action of the filter 2, the filter 2 can again prevent the thrombus from continuing to flow upward, so that it can be collected inside the connecting ring 3.

[0031] Example 2

[0032] Based on Example 1, a preferred embodiment of the interventional vascular protection device provided by the present invention is as follows: Figures 1 to 6 As shown: a limit rod 7 is provided above the injection hole 6 and is slidably connected to the inside of the tube body 1, a connecting ring 8 is fixedly connected to the tail of the limit rod 7, a spring 9 fixedly connected to the tube body 1 is fixedly connected to the inner wall of the connecting ring 8, a connecting port 11 is fixedly connected to the top of the tube body 1, a threaded groove 10 is provided inside the connecting port 11, a connecting head 12 is threadedly connected to the surface of the threaded groove 10, and an injection tube 13 passes through the side of the tube body 1.

[0033] In this embodiment, the limiting rod 7 and the tube body 1 are arranged perpendicular to each other, and the tail of the limiting rod 7 and the center of the injection hole 6 are located on the same horizontal line. When there is a blood vessel attached to the blood vessel wall and it is not easy to fall off, a straw can be inserted into the injection hole 6, and the straw can be used to absorb the thrombus on the blood vessel wall to make it fall off from the blood vessel wall.

[0034] In this embodiment, the tail of the limiting rod 7 is designed as a rubber head, and the limiting rod 7 forms an automatic sliding structure inside the tube body 1 through the spring 9. Under the action of the limiting rod 7, the limiting rod 7 can limit the catheter through the spring 9 to prevent the catheter from sliding inside the blood vessel due to lack of limitation and causing damage to the blood vessel.

[0035] In this embodiment, the interior of the connector 12 is hollow in design, and the connector 12 forms a detachable structure through the thread groove 10. The connector 12 can be connected to other equipment or tools when needed, so as to improve the overall functionality of the tube body 1.

[0036] In this embodiment, the injection tube 13 passes through the interior of the tube body 1 and extends out of the bottom of the base plate 4. The injection tube 13 is a flexible hose. The tail of the injection tube 13 extends to the bottom of the base plate 4. When needed, the drug can be injected into the blood vessel from the interior of the injection tube 13.

[0037] The working principle and use process of the utility model are as follows: first, the tail of the tube body 1 is connected to the insertion tube that needs to be inserted into the patient's body. When the insertion tube is inserted into the affected area, the medical staff can absorb the thrombus in the patient's blood vessel through the tube body 1. By setting the filter head 5, when the thrombus is absorbed, it will pass through the filter head 5 and enter the inside of the connecting ring 3. Because the filter head 5 is conical in design, and the side with a smaller aperture faces upward, when the thrombus passes through the filter head 5 and reaches the inside of the connecting ring 3, the thrombus will not easily flow out from the end with a smaller aperture of the filter head 5, which plays a role in limiting the thrombus. Under the action of the filter screen 2, the filter screen 2 can again prevent the thrombus from continuing to flow upward, so that it is collected inside the connecting ring 3.

[0038] By providing the injection hole 6, when there is a blood vessel attached to the blood vessel wall that is not easy to fall off, a straw can be inserted into the injection hole 6, and the thrombus on the blood vessel wall can be adsorbed by the straw to make it fall off the blood vessel wall. Under the action of the limit rod 7, the limit rod 7 can limit the catheter through the spring 9 to prevent the catheter from sliding inside the blood vessel due to lack of limitation and causing damage to the blood vessel. By providing the injection tube 13, the tail of the injection tube 13 extends to the bottom of the bottom plate 4, and the drug can be injected into the blood vessel from the inside of the injection tube 13 when needed. By providing the connector 12, the connector 12 can be connected to other equipment or tools when needed, so as to improve the overall functionality of the tube body 1.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An interventional blood vessel protection device, comprising a tube body (1), characterized in that: The bottom of the tube body (1) is fixedly connected to a filter screen (2), the bottom of the filter screen (2) is fixedly connected to a connecting ring (3), the bottom of the connecting ring (3) is fixedly connected to a bottom plate (4), the top of the bottom plate (4) is fixedly connected to a filter head (5), and one side of the filter head (5) is provided with an injection hole (6) located inside the bottom plate (4).

2. The interventional vascular protection device according to claim 1, characterized in that: A limit rod (7) is arranged above the injection hole (6) and is slidably connected to the inside of the tube body (1); a connecting ring (8) is fixedly connected to the tail of the limit rod (7); a spring (9) fixedly connected to the tube body (1) is fixedly connected to the inner wall of the connecting ring (8); a connecting port (11) is fixedly connected to the top of the tube body (1); a thread groove (10) is arranged inside the connecting port (11); a connecting head (12) is threadedly connected to the surface of the thread groove (10); and a drug injection tube (13) passes through the side of the tube body (1).

3. The interventional vascular protection device according to claim 1, characterized in that: The filter head (5) is designed to be conical, and the small-aperture side of the filter head (5) is designed to face upward.

4. The interventional vascular protection device according to claim 1, characterized in that: The bottom plate (4) and the filter screen (2) are both provided with injection holes (6), and the injection holes (6) are arranged at the center of the bottom plate (4) and the filter screen (2).

5. The interventional vascular protection device according to claim 2, characterized in that: The limiting rod (7) and the tube body (1) are arranged perpendicular to each other, and the tail of the limiting rod (7) and the center of the injection hole (6) are located on the same horizontal line.

6. The interventional vascular protection device according to claim 2, characterized in that: The tail of the limiting rod (7) is designed as a rubber head, and the limiting rod (7) forms an automatic sliding structure inside the tube body (1) through a spring (9).

7. The interventional vascular protection device according to claim 2, characterized in that: The interior of the connector (12) is of hollow design, and the connector (12) forms a detachable structure through the thread groove (10).

8. The interventional vascular protection device according to claim 2, characterized in that: The drug injection tube (13) passes through the interior of the tube body (1) and extends out of the bottom of the bottom plate (4). A flexible hose.

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