CN211158068U

CN211158068U - Catheter for thrombolysis of deep vein thrombus of lower limb through right radial artery

Info

Publication number: CN211158068U
Application number: CN201921690600.XU
Authority: CN
Inventors: 张慧; 别自东; 郭磊; 赵惠; 朱梦瑶; 张道霖
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-08-04
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a catheter for thrombolysis of deep vein thrombosis of lower limbs through right radial artery, which comprises a catheter end head, wherein the catheter end head is bent in multiple angles, specifically, the catheter end head is bent inwards at 140-160 degrees at first, which is a first angle, and then bent inwards at 140-160 degrees, which is a second angle; the inner diameter of the conduit is 1.5mm and the outer diameter is 1.65 mm; the catheter length is not shorter than 150 cm; the length of the catheter tip AB is 2-3mm, the length of the BC is 2.5-3cm, and the length of the CD is 0.3-0.6 mm. The utility model discloses the multi-angle design that the structure was used for reference can easily reverse and get into the aortic arch, under the cooperation of seal wire, reachs femoral artery sooner. Use the utility model discloses can accomplish through radial artery catheterization smoothly, solve the problem of dark vein thrombus.

Description

Catheter for thrombolysis of deep vein thrombus of lower limb through right radial artery

Technical Field

The utility model belongs to a medical auxiliary instrument, in particular to a thrombolytic catheter for lower limb deep vein thrombosis through right radial artery.

Background

The deep venous thrombosis of lower limb means that blood is abnormally coagulated in deep veins of lower limb, and belongs to the lower limb venous reflux disorder disease. Thrombosis occurs mostly in braking situations (especially in major orthopedic surgery). The etiological factors include slow blood flow, vein wall damage and high coagulation state. After the thrombus is formed, most of the thrombus can be spread to the trunk of the deep vein of the whole limb except for a few parts which can be ablated or limited to the occurrence part by themselves, and if the thrombus cannot be diagnosed and treated in time, most of the thrombus can be evolved into sequelae of the thrombus formation, so that the life quality of a patient is influenced for a long time; still other patients may develop pulmonary embolisms with extremely serious consequences. Deep venous thrombosis has been a difficult point in clinical treatment.

In the acute stage of deep venous thrombosis (less than 14 days), the venous thrombolysis treatment is feasible, and for the deep venous thrombosis of all lower limbs, the forward thrombolysis is recommended by a femoral artery indwelling catheter, but the thrombolysis needs lower limb braking when the catheter is placed through the femoral artery, so that the patient is inconveniently bedridden to rest, and the patient is not easy to accept. And serious complications such as pseudoaneurysm, retroperitoneal hematoma and the like are easily caused by the puncture and catheter placement of femoral artery.

The transradial catheterization does not need long-term bed rest and does not have fatal complication. The biggest difficulty in delivering the catheter to the femoral artery of the lower limb via the right radial artery is how quickly the catheter can be reversed from the brachiocephalic trunk into the aortic arch.

Disclosure of Invention

The utility model aims at providing a catheter for thrombolysis of deep vein thrombosis of lower limbs through the right radial artery to make up the deficiency of the prior art.

In order to achieve the above purpose, the utility model adopts the following specific technical scheme:

A catheter for thrombolysis of deep vein of lower limb through right radial artery comprises a catheter tip, wherein the catheter tip is bent in multiple angles, specifically, the catheter tip is bent inwards in 140-160 degrees at first, and then bent inwards in 140-160 degrees at second.

Further, the inner diameter of the conduit is 1.5mm and the outer diameter is 1.65 mm.

Further, the conduit is not shorter than 150cm in length.

Furthermore, the length of the catheter tip AB is 2-3mm, the length of BC is 2.5-3cm, and the length of CD is 0.3-0.6 mm.

Further, the first angle is 150 ° and the second angle is 150 °.

Further, the length of the catheter tip AB is 3mm, the length of the BC is 2.5cm, and the length of the CD is 0.6 mm.

When the device is used, a guide wire enters from the catheter and the guide wire inlet, the catheter enters the ascending aorta along the guide wire, the guide wire is removed after the whole end of the catheter enters, the catheter can smoothly enter the aortic arch through inversion due to the design of two angles of the catheter, then enters the descending aorta along the guide wire, and is continuously pushed until entering the deep veins of the lower limbs.

The utility model has the advantages and the technical effect:

The utility model discloses the multi-angle design that the structure was used for reference can make the pipe easily reverse and get into the aortic arch to under the cooperation of seal wire, reachd femoral artery sooner. Use the utility model discloses can accomplish the radial artery smoothly and put the pipe, can solve the problem of dark vein thrombus fast, smoothly, and can avoid producing serious complication.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of arteriovenous vessels of a human body.

Fig. 3 is a schematic structural diagram of an aortic arch.

Wherein (a) is a prior art catheter structure; (b) is the conduit structure of the utility model; 1-aortic arch, 2-full lower limb deep vein, 3-catheter and guide wire inlet, 4-ascending aorta, 5-descending aorta.

Detailed Description

The invention will be further explained and explained with reference to specific embodiments and drawings.

Example 1:

as shown in fig. 1, a catheter for deep transvenous thrombolysis via the right radial artery comprises a catheter tip, wherein the catheter tip is bent in multiple angles, specifically, an inward bending angle α of 150 ° is firstly performed, and then an inward bending angle β of 150 ° is performed.

The inner diameter of the catheter is 1.5mm and the outer diameter is 1.65 mm.

The conduit is no shorter than 150cm in length.

The length of the catheter tip AB is 3mm, the length of the BC is 2.5cm, and the length of the CD is 0.6 mm.

Example 2:

as shown in fig. 1, a catheter for deep transvenous thrombolysis via the right radial artery comprises a catheter tip, wherein the catheter tip is bent in multiple angles, specifically, an inward bending angle α of 140 ° is firstly performed, and then an inward bending angle β of 140 ° is performed.

The inner diameter of the catheter is 1.5mm and the outer diameter is 1.65 mm.

The conduit is no shorter than 150cm in length.

The length of the catheter tip AB is 2mm, the length of the BC is 3cm, and the length of the CD is 0.3 mm.

Example 3:

as shown in fig. 1, a catheter for deep transvenous thrombolysis via the right radial artery comprises a catheter tip, which is bent at multiple angles, specifically, an inward bending angle α of 160 ° is first performed, and then an inward bending angle β of 160 ° is performed.

Further, the conduit is not shorter than 150cm in length.

Further, the length of the catheter tip AB is 3mm, the length of the BC is 3cm, and the length of the CD is 0.5 mm.

Use example:

As shown in figure 3, when the device is used, a guide wire enters from a catheter and a guide wire inlet, the catheter extends along the guide wire and enters into an ascending aorta, after the whole end of the catheter enters, the guide wire is removed, the catheter can smoothly enter into an aortic arch through inversion, due to the design of the first angle and the second angle of the catheter, the catheter can enter into a descending aorta along the catheter and then enters into a deep vein of the lower limb (as shown in figure 2), the problem of deep vein thrombosis of the lower limb is finally solved, and no serious complication is generated.

Claims

1. A catheter for thrombolysis of deep veins of lower limbs through the right radial artery is characterized by comprising a catheter tip, wherein the catheter tip is bent in multiple angles, specifically, the catheter tip is bent inwards in a 140-160 degree range, the inward bending is a first angle, and then the catheter tip is bent inwards in a 140-160 degree range, the inward bending is a second angle.

2. The catheter of claim 1, wherein the catheter has an inner diameter of 1.5mm and an outer diameter of 1.65 mm.

3. The catheter of claim 1, wherein the catheter length is no shorter than 150 cm.

4. The catheter of claim 1, wherein the catheter tip AB has a length of 2-3mm, a BC length of 2.5-3cm and a CD length of 0.3-0.6 mm.

5. Catheter according to claim 1, wherein said first angle is 150 ° and said second angle is 150 °.

6. The catheter of claim 1, wherein the catheter tip AB has a length of 3mm, BC 2.5cm and CD 0.6 mm.