Percutaneous ultrasound-guided vascular catheter device

Abstract

The utility model relates to the technical field of medical instruments, and discloses a percutaneous ultrasonic guided vascular catheter device which comprises a vascular catheter body and an ultrasonic probe, clamping grooves are formed in the two ends of the interior of the vascular catheter body, and a signal transmission wire is connected to the center of the tail end of the ultrasonic probe. The two ends of the outer surface of the signal transmission wire are fixedly sleeved with annular clamping bases, and the blood vessel catheter body is provided with a driving clamping assembly through the annular clamping bases. According to the percutaneous ultrasonic guided vascular catheter device, the driving clamping assembly is arranged, a handle is rotated to drive a driving screw to move towards the interior of an air cylinder, and when a piston head moves towards one end close to a three-way connector, the piston head can push air in the air cylinder to enter an annular air bag through an air guide pipe; further, the annular air bag expands outwards and is clamped into a clamping groove in the blood vessel catheter body, the ultrasonic probe and the signal transmission wire can drive the blood vessel catheter body to move synchronously in the moving process, operation is easy, and stability is high.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a percutaneous ultrasound-guided vascular catheter device. Background Technology

[0002] Percutaneous ultrasound-guided vascular catheterization refers to the process of percutaneously puncturing a blood vessel and inserting a catheter under ultrasound guidance. It is widely used in the fields of emergency medicine, critical care, and anesthesia.

[0003] With the development of technology, intravascular ultrasound has become a highly practical imaging diagnostic tool. When using intravascular ultrasound to diagnose, detect, or treat blood vessels, a vascular catheter needs to be inserted beforehand, and then the ultrasound probe is inserted into the target blood vessel along the vascular catheter.

[0004] Because existing percutaneous ultrasound-guided vascular catheter devices require a guide wire to guide and support the catheter through soft tissues such as subcutaneous tissue and arterial walls before entering the blood vessel through a puncture site, and guidance is provided by a miniature ultrasound probe and its connected signal transmission wire, it is impossible to ensure that the signal transmission wire moves synchronously with the vascular catheter, or to control the movement of the signal transmission wire and ultrasound probe independently as needed, resulting in poor performance. Therefore, there is a need to provide a percutaneous ultrasound-guided vascular catheter device to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a percutaneous ultrasound-guided vascular catheter device, which solves the problems mentioned in the background.

[0006] This utility model provides the following technical solution: a percutaneous ultrasound-guided vascular catheter device, comprising:

[0007] The main body of the vascular catheter has slots at both ends inside the vascular catheter body;

[0008] An ultrasonic probe, wherein the ultrasonic probe is disposed at the front end inside the main body of the vascular catheter;

[0009] The center of the end of the ultrasound probe is connected to a signal transmission wire. The end of the signal transmission wire away from the ultrasound probe passes through the tail opening of the vascular catheter body and connects to an external ultrasound instrument. Both ends of the outer surface of the signal transmission wire are fixedly fitted with annular retainers. The vascular catheter body is equipped with a drive clamping component through the annular retainers.

[0010] The drive clamping assembly includes two annular airbags, each disposed inside one of two annular clamping seats.

[0011] Preferably, the drive clamping assembly further includes an air cylinder, a three-way connector, and an air guide tube. The air guide tube includes an inner connecting tube and an outer connecting tube. The inner connecting tube of the air guide tube is disposed between the two annular airbags, and the two annular airbags are connected through the inner connecting tube of the air guide tube.

[0012] Preferably, one end of the inner connecting tube of the air guide tube is connected to the annular airbag at the end of the signal transmission wire, and the end of the inner connecting tube away from the annular airbag is connected to a three-way connector.

[0013] Preferably, the side of the three-way connector opposite to the inner connecting pipe of the air guide pipe is connected to the gas inlet and outlet of the air cylinder, and an end cap is provided at the end of the air cylinder away from the three-way connector.

[0014] Preferably, the air cylinder is provided with a piston head inside, and a drive screw is provided at the center of one side of the piston head.

[0015] Preferably, the end of the drive screw away from the piston head extends through the end cover to the outside, and a handle is fixedly provided at the end of the drive screw away from the piston head.

[0016] Preferably, the drive screw is threadedly connected to the end cover, and an air hole is provided on the end cover and on one side of the drive screw.

[0017] Preferably, the end cap is removable.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This percutaneous ultrasound-guided vascular catheter device features a drive-clamping assembly. Rotating the handle moves the drive screw into the air cylinder, which in turn moves the piston head synchronously. As the piston head moves closer to the tee connector, it pushes the gas inside the air cylinder through the air tube into the annular air bladder. The annular air bladder then expands outward and clamps into the slot inside the vascular catheter body. This allows the ultrasound probe and signal transmission wire to move synchronously with the vascular catheter body, ensuring effective placement of the vascular catheter into the blood vessel. The operation is simple.

[0020] 2. This percutaneous ultrasound-guided vascular catheter device is equipped with an air vent to facilitate the movement of the piston head inside the air cylinder, and the end cap is removable for easy maintenance and replacement. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the percutaneous ultrasound-guided vascular catheter device of this utility model;

[0022] Figure 2 This is a cross-sectional view of the percutaneous ultrasound-guided vascular catheter device of this utility model;

[0023] Figure 3 This is a cross-sectional view of the main body of the vascular catheter of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the drive clamping assembly of this utility model;

[0025] Figure 5 This utility model Figure 2 A partial structural diagram.

[0026] In the diagram: 1. Vascular catheter body; 101. Slot; 2. Ultrasonic probe; 3. Signal transmission wire; 4. Annular seat; 5. Drive clamping assembly; 501. Air cylinder; 502. End cap; 503. Drive screw; 504. Piston head; 505. Handle; 506. T-connector; 507. Air tube; 508. Annular airbag. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 A percutaneous ultrasound-guided vascular catheter device, comprising:

[0029] The vascular catheter body 1 has slots 101 at both ends inside the vascular catheter body 1.

[0030] Ultrasonic probe 2 is located at the front end of the vascular catheter body 1.

[0031] The center of the end of the ultrasound probe 2 is connected to a signal transmission wire 3. The end of the signal transmission wire 3 away from the ultrasound probe 2 passes through the tail opening of the blood vessel catheter body 1 and is connected to an external ultrasound device. Both ends of the outer surface of the signal transmission wire 3 are fixedly fitted with annular retainers 4. The blood vessel catheter body 1 is equipped with a drive clamping component 5 through the annular retainers 4.

[0032] The drive clamping assembly 5 includes an annular airbag 508. Two annular airbags 508 are provided, and the two annular airbags 508 are respectively disposed inside the two annular clamping seats 4.

[0033] The drive clamping assembly 5 also includes an air cylinder 501, a three-way connector 506, and an air guide pipe 507. The air guide pipe 507 includes an inner connecting pipe and an outer connecting pipe. The inner connecting pipe of the air guide pipe 507 is located between two annular airbags 508. The two annular airbags 508 are connected through the inner connecting pipe of the air guide pipe 507. One end of the inner connecting pipe of the air guide pipe 507 is connected to the annular airbag 508 at the end of the signal transmission wire 3. The end of the inner connecting pipe of the air guide pipe 507 away from the annular airbag 508 is connected to the three-way connector 506. By providing the inner connecting pipe of the air guide pipe 507, the two annular airbags 508 are effectively connected. By providing the outer connecting pipe of the air guide pipe 507, the annular airbag 508 is connected to the internal space of the air cylinder 501 through the outer connecting pipe and the three-way connector 506.

[0034] The three-way connector 506 is connected to the gas inlet and outlet of the gas cylinder 501 on the side opposite to the inner connecting pipe of the gas guide pipe 507. An end cap 502 is provided on the end of the gas cylinder 501 away from the three-way connector 506. A piston head 504 is provided inside the gas cylinder 501. A drive screw 503 is provided at the center of one side of the piston head 504. The end cap 502 facilitates the installation of the drive screw 503. The movement of the drive screw 503 can drive the piston head 504 to move synchronously.

[0035] The drive screw 503 extends through the end cap 502 to the outside at one end away from the piston head 504. A handle 505 is fixedly provided at the end of the drive screw 503 away from the piston head 504. The drive screw 503 is threadedly connected to the end cap 502. By rotating the handle 505, the drive screw 503 can be moved into the air cylinder 501. During the movement of the drive screw 503, the piston head 504 will move synchronously. When the piston head 504 moves towards the end close to the three-way connector 506, the piston head 504 will push the gas inside the air cylinder 501 into the annular air bag 508 through the air guide pipe 507, thereby... The annular airbag 508 expands outward and is inserted into the slot 101 inside the main body of the vascular catheter 1. This allows the main body of the vascular catheter 1 to move synchronously during the movement of the ultrasound probe 2 and the signal transmission wire 3, enabling the vascular catheter 1 to be effectively placed into the blood vessel. When the handle 505 is turned in the opposite direction, the drive screw 503 will drive the piston head 504 to move closer to the end cap 502, thereby drawing gas out of the annular airbag 508. The annular airbag 508 then contracts and enters the annular seat 4. At this time, the movement of the ultrasound probe 2 and the signal transmission wire 3 can be controlled independently, allowing the ultrasound probe 2 to move to the target blood vessel area.

[0036] The end cap 502 has an air hole on one side of the drive screw 503. The end cap 502 is detachable. The air hole facilitates the movement of the piston head 504 inside the air cylinder 501. The detachable end cap 502 facilitates future maintenance and replacement.

[0037] Working principle: Rotating the handle 505 drives the drive screw 503 to move into the air cylinder 501. During the movement of the drive screw 503, the piston head 504 moves synchronously. When the piston head 504 moves closer to the tee connector 506, the piston head 504 pushes the gas inside the air cylinder 501 through the air guide tube 507 into the annular air bladder 508. Then, the annular air bladder 508 expands outward and gets into the slot 101 inside the vascular catheter body 1. This allows the vascular catheter body 1 to move synchronously during the movement of the ultrasound probe 2 and the signal transmission wire 3, so that the vascular catheter body 1 can be effectively placed into the blood vessel.

[0038] Furthermore, when the handle 505 is rotated in the reverse direction, the drive screw 503 will drive the piston head 504 to move closer to the end cap 502, thereby drawing gas from the annular airbag 508. The annular airbag 508 retracts into the annular retainer 4. At this time, the ultrasonic probe 2 and the signal transmission wire 3 can be moved independently, so that the ultrasonic probe 2 moves to the target blood vessel area. The air hole facilitates the movement of the piston head 504 inside the air cylinder 501. The end cap 502 is removable for easy maintenance and replacement later.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A percutaneous ultrasound-guided vascular catheter device, comprising: The vascular catheter body (1) has slots (101) at both ends inside. An ultrasonic probe (2) is disposed at the front end of the vascular catheter body (1); The feature is that a signal transmission wire (3) is connected to the center of the end of the ultrasonic probe (2), and the end of the signal transmission wire (3) away from the ultrasonic probe (2) passes through the tail opening of the vascular catheter body (1) and is connected to an external ultrasonic instrument. Both ends of the outer surface of the signal transmission wire (3) are fixedly fitted with annular retainers (4), and the vascular catheter body (1) is provided with a drive clamping component (5) through the annular retainer (4). The drive clamping assembly (5) includes an annular airbag (508), and two annular airbags (508) are provided, with the two annular airbags (508) respectively disposed inside the two annular clamping seats (4).

2. The percutaneous ultrasound-guided vascular catheter device according to claim 1, characterized in that, The drive clamping assembly (5) also includes an air cylinder (501), a three-way connector (506), and an air guide pipe (507). The air guide pipe (507) includes an inner connecting pipe and an outer connecting pipe. The inner connecting pipe of the air guide pipe (507) is located between two annular airbags (508), and the two annular airbags (508) are connected through the inner connecting pipe of the air guide pipe (507).

3. A percutaneous ultrasound-guided vascular catheter device according to claim 2, characterized in that, One end of the inner connecting tube of the air guide tube (507) is connected to the annular airbag (508) at the end of the signal transmission wire (3), and the end of the inner connecting tube of the air guide tube (507) away from the annular airbag (508) is connected to the three-way connector (506).

4. A percutaneous ultrasound-guided vascular catheter device according to claim 3, characterized in that, The side of the three-way connector (506) away from the inner connecting pipe of the air guide pipe (507) is connected to the gas inlet and outlet of the air cylinder (501), and the end cap (502) is provided on the end of the air cylinder (501) away from the three-way connector (506).

5. A percutaneous ultrasound-guided vascular catheter device according to claim 4, characterized in that, The air cylinder (501) is equipped with a piston head (504), and a drive screw (503) is provided at the center of one side of the piston head (504).

6. A percutaneous ultrasound-guided vascular catheter device according to claim 5, characterized in that, The drive screw (503) extends to the outside through the end cap (502) at one end away from the piston head (504), and a handle (505) is fixedly provided at the end of the drive screw (503) away from the piston head (504).

7. A percutaneous ultrasound-guided vascular catheter device according to claim 6, characterized in that, The drive screw (503) is threadedly connected to the end cap (502), and an air hole is provided on the end cap (502) and on one side of the drive screw (503).

8. A percutaneous ultrasound-guided vascular catheter device according to claim 4, characterized in that, The end cap (502) is removable.

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