An arterial puncture needle

Abstract

The present application relates to the technical field of medical devices, in particular to an arterial puncture needle. The arterial puncture needle comprises a body, a puncture needle head and a puncture needle body, the puncture needle head and the puncture needle body have hollow structures, the puncture needle head is fixedly arranged at one end of the puncture needle body, and the puncture needle head and the puncture needle body are connected in communication; a magnetic navigation needle is arranged in the puncture needle body through the end of the puncture needle body away from the puncture needle head, the needle head of the magnetic navigation needle is close to the puncture needle head, the needle head of the magnetic navigation needle is provided with a sensor assembly, the sensor assembly comprises an X-axis sensor, a Y-axis sensor and a Z-axis sensor, and the needle tail of the magnetic navigation needle is connected with an ultrasonic device through a transmission line. The X-axis sensor, the Y-axis sensor and the Z-axis sensor can transmit the position information of the puncture needle head to the ultrasonic device through the transmission line, and the position of the puncture needle head can be displayed on the ultrasonic device, so that the offset of the puncture needle head can be observed and adjusted in time, and the safety hazard is reduced.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an arterial puncture needle. Background Technology

[0002] Arterial puncture needles are mainly used for puncturing and placing catheters in arterial vessels. Their functions include: measuring arterial blood pressure, monitoring arterial blood pressure during anesthesia, monitoring changes in the patient's vital signs, and performing various vascular interventional procedures such as arterial angiography, stent implantation, and balloon angioplasty.

[0003] In existing technology, arterial puncture needles have a blood return chamber. After the arterial puncture needle is inserted into the blood vessel, the blood in the blood vessel will flow into the blood return chamber. After the arterial puncture needle is fixed, the guidewire can be inserted into the arterial puncture needle and extended into the blood vessel through the arterial puncture needle. However, during the process of inserting the guidewire, the arterial puncture needle may deviate, causing the arterial puncture needle to fall out of the blood vessel or penetrate the blood vessel. If the guidewire is continued to be inserted at this time, the guidewire will not be able to enter the blood vessel, and at the same time, it will also cause safety hazards. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that during the insertion of the guidewire, the arterial puncture needle may deviate, causing the arterial puncture needle to come out of the blood vessel or penetrate the blood vessel. If the guidewire is continuously inserted at this time, the guidewire will not be able to enter the blood vessel, which will also cause safety hazards. Therefore, the present invention provides an arterial puncture needle.

[0005] To address the above problems, the present invention provides an arterial puncture needle, comprising:

[0006] The body includes a puncture needle tip and a puncture needle body. Both the puncture needle tip and the puncture needle body have hollow structures. The puncture needle tip is fixedly disposed at one end of the puncture needle body, and the puncture needle tip and the puncture needle body are connected.

[0007] A magnetic navigation needle is disposed within the puncture needle body, with one end passing through the needle body and away from the needle tip. The needle tip of the magnetic navigation needle is close to the needle tip and is equipped with a sensor assembly, which includes an X-axis sensor, a Y-axis sensor, and a Z-axis sensor. The needle tail of the magnetic navigation needle is connected to an ultrasonic device via a transmission line.

[0008] Furthermore, it also includes:

[0009] A magnetic navigation needle tube, wherein the magnetic navigation needle is disposed inside the magnetic navigation needle tube, and one end of the magnetic navigation needle tube passing through the puncture needle body and away from the puncture needle head is disposed inside the needle body, while one end of the magnetic navigation needle tube is close to the puncture needle head.

[0010] Furthermore, the end of the puncture needle body away from the puncture needle tip is provided with an opening and a syringe interface, the magnetic navigation needle tube is disposed in the puncture needle body through the opening, and the angle between the syringe interface and the puncture needle body is an obtuse angle.

[0011] Furthermore, it also includes:

[0012] A guidewire, one end of which can pass sequentially through the syringe port and the puncture needle body and extend out from the puncture needle tip.

[0013] Furthermore, it also includes:

[0014] A syringe connected to the syringe interface, the syringe containing fluid that flows sequentially through the syringe interface and the puncture needle body and out from the puncture needle tip.

[0015] Furthermore, a first connecting portion is provided at the end of the magnetic navigation needle tube away from the puncture needle tip, and a second connecting portion is provided at the connection point between the magnetic navigation needle and the transmission line, which is fixedly connected to the first connecting portion. The magnetic navigation needle can pass through the first connecting portion and be disposed inside the magnetic navigation needle tube.

[0016] Furthermore, the first connecting part is provided with a threaded interface, which is a hollow structure. The threaded interface is connected to the magnetic navigation needle tube, and the magnetic navigation needle can pass through the threaded interface and be disposed inside the magnetic navigation needle tube. The second connecting part is provided with a threaded hole that mates with the threaded interface.

[0017] Furthermore, the first connecting part is provided with an insertion hole on the side facing the puncture needle body, and the first connecting part is inserted into the puncture needle body.

[0018] Furthermore, the end of the magnetic navigation needle tube near the puncture needle head is beveled, and the beveled end of the magnetic navigation needle tube and the beveled head of the puncture needle are located on the same plane.

[0019] Furthermore, the guidewire has a flexible structure.

[0020] The present invention has the following advantages:

[0021] 1. This invention discloses an arterial puncture needle. By setting a magnetic navigation needle inside the puncture needle body, one end of the magnetic navigation needle is equipped with an X-axis sensor, a Y-axis sensor, and a Z-axis sensor. The X-axis sensor, Y-axis sensor, and Z-axis sensor can transmit the position information of the puncture needle tip to an ultrasound device through a transmission line. The ultrasound device can then display the position of the puncture needle tip, thereby allowing for timely observation and adjustment when the puncture needle tip deviates, further reducing safety hazards.

[0022] 2. This arterial puncture needle structure, by setting a magnetic navigation needle tube inside the puncture needle body, and placing the magnetic navigation needle inside the magnetic navigation needle tube, can avoid damage to the sensor components on the magnetic navigation needle caused by blood rushing into the cavity of the puncture needle body when the puncture needle tip pierces the blood vessel.

[0023] 3. With this structure, the guidewire is inserted into the puncture needle body through the syringe interface, extends toward the puncture needle tip, and extends out of the puncture needle tip. The guidewire and the magnetic navigation needle tube do not interfere with each other in the puncture needle body. Under the action of the magnetic navigation needle, the success rate of guidewire insertion into the blood vessel can be improved, thereby reducing safety hazards.

[0024] 4. In this arterial puncture needle, the syringe is connected to the syringe interface. Fluid in the syringe can flow into the puncture needle body through the syringe interface and into the blood vessel from the puncture needle tip. The syringe interface can not only be connected to the syringe, but also serve as the guide wire inlet, further improving its practicality. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the arterial puncture needle in an embodiment of the present invention;

[0027] Figure 2 This is an exploded view of the arterial puncture needle in an embodiment of the present invention;

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Puncture needle tip; 2. Puncture needle body; 3. Magnetic navigation needle; 4. Sensor assembly; 5. Transmission line; 6. Magnetic navigation needle tube; 7. Opening; 8. Syringe interface; 9. Guide wire; 10. First connecting part; 11. Second connecting part; 12. Threaded interface. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] like Figures 1 to 2 As shown, this embodiment discloses an arterial puncture needle, including a body and a magnetic navigation needle 3. The body includes a puncture needle tip 1 and a puncture needle body 2. Both the puncture needle tip 1 and the puncture needle body 2 have hollow structures. The puncture needle tip 1 is fixedly disposed at one end of the puncture needle body 2, and the puncture needle tip 1 and the puncture needle body 2 are connected. The magnetic navigation needle 3 passes through the puncture needle body 2 and is disposed at the end away from the puncture needle tip 1 within the puncture needle body 2. The tip of the magnetic navigation needle 3 is close to the puncture needle tip 1, and the tip of the magnetic navigation needle 3 is provided with a sensor assembly 4, which includes an X-axis sensor, a Y-axis sensor, and a Z-axis sensor. The tail of the magnetic navigation needle 3 is connected to an ultrasound device via a transmission line 5.

[0035] Specifically, the main body includes a puncture needle tip 1 and a puncture needle body 2. Figure 1In this design, the lower end of the puncture needle 1 is the needle head, and the upper end of the puncture needle 1 is fixedly connected to the lower end of the puncture needle body 2. Both the puncture needle 1 and the puncture needle body 2 have hollow structures and are connected to each other. A magnetic navigation needle 3 passes through the upper end of the puncture needle body 2 and is located inside the puncture needle body 2. A sensor assembly 4 is provided at one end of the magnetic navigation needle 3 near the needle head of the puncture needle 1. The sensor assembly 4 includes an X-axis sensor, a Y-axis sensor, and a Z-axis sensor. The X-axis sensor, Y-axis sensor, and Z-axis sensor can realize three-dimensional positioning of the puncture needle 1 and monitor the real-time position of the puncture needle 1, thereby preventing the puncture needle 1 from deviating and causing it to dislodge from or penetrate the blood vessel. The other end of the magnetic navigation needle 3 is connected to the ultrasound device through a transmission line 5. The X-axis sensor, Y-axis sensor, and Z-axis sensor can transmit the position information of the body to the ultrasound device through the transmission line 5. After processing, the ultrasound device can display the position of the puncture needle 1 on the display device.

[0036] Furthermore, it also includes: a magnetic navigation needle tube 6. The magnetic navigation needle 3 is disposed inside the magnetic navigation needle tube 6, with one end of the magnetic navigation needle tube 6 passing through the puncture needle body 2 and away from the puncture needle head 1 disposed inside the needle body, and the other end of the magnetic navigation needle tube 6 being close to the puncture needle head 1.

[0037] Specifically, such as Figure 1 and Figure 2 As shown, the magnetic navigation needle tube 6 passes through the upper end of the puncture needle body 2 and is disposed inside the puncture needle body 2. The magnetic navigation needle 3 is disposed inside the magnetic navigation needle tube 6. The lower end of the magnetic navigation needle tube 6 is close to the puncture needle head 1. The magnetic navigation needle tube 6 can seal the magnetic navigation needle 3 to prevent blood from entering the cavity between the puncture needle head 1 and the puncture needle body 2 after the main body is inserted into the blood vessel, which would cause damage to the sensor assembly 4 on the magnetic navigation needle 3.

[0038] Furthermore, the end of the magnetic navigation needle tube 6 near the puncture needle head 1 is beveled, and the bevel of one end of the magnetic navigation needle tube 6 and the bevel of the needle head of the puncture needle head 1 are located on the same plane.

[0039] Specifically, such as Figure 1 As shown, the needle head of the puncture needle 1 has a bevel, and the end of the magnetic navigation needle tube 6 near the puncture needle 1 has a bevel. The bevel at one end of the magnetic navigation needle tube 6 and the bevel at the needle head of the puncture needle 1 are on the same plane.

[0040] Furthermore, the end of the puncture needle body 2 away from the puncture needle tip 1 is provided with an opening 7 and a syringe interface 8. The magnetic navigation needle tube 6 is set inside the puncture needle body 2 through the opening 7, and the angle between the syringe interface 8 and the puncture needle body 2 is an obtuse angle.

[0041] Specifically, such as Figure 2 As shown, the upper end of the puncture needle body 2 is provided with an opening 7 and a syringe interface 8. The syringe interface 8 is located on the right side of the opening 7, and the syringe interface 8 faces as shown. Figure 2 Extending from the upper right, the angle between the syringe interface 8 and the puncture needle body 2 is an obtuse angle, and the magnetic navigation needle tube 6 is set inside the puncture needle body 2 through the opening 7.

[0042] Furthermore, it also includes: a guidewire 9. One end of the guidewire 9 can pass through the syringe port 8 and the puncture needle body 2 in sequence and protrude from the puncture needle tip 1.

[0043] Specifically, such as Figure 1 As shown, one end of the guidewire 9 can be inserted into the puncture needle body 2 through the syringe interface 8 and extend out from the puncture needle tip 1 into the blood vessel.

[0044] Preferably, the guidewire 9 has a flexible structure, which allows it to be bent at the connection between the syringe interface 8 and the puncture needle body 2 and extend toward the puncture needle tip 1.

[0045] In other alternative embodiments, the syringe is connected to a syringe interface 8, and the syringe contains fluid that flows sequentially through the syringe interface 8 and the puncture needle body 2 and out of the puncture needle tip 1. The fluid in the syringe can be a drug solution, heparinized saline, etc. The fluid in the syringe enters the puncture needle body 2 through the syringe interface 8, and then flows out of the puncture needle tip 1 into the blood vessel.

[0046] Furthermore, a first connecting part 10 is provided at the end of the magnetic navigation needle tube 6 away from the puncture needle 1, and a second connecting part 11 is provided at the connection point between the magnetic navigation needle 3 and the transmission line 5, which is fixedly connected to the first connecting part 10. The magnetic navigation needle 3 can pass through the first connecting part 10 and be disposed inside the magnetic navigation needle tube 6.

[0047] Furthermore, the first connecting part 10 is provided with a threaded interface 12, which is a hollow structure. The threaded interface 12 is connected to the magnetic navigation needle tube 6, and the magnetic navigation needle 3 can pass through the threaded interface 12 and be placed inside the magnetic navigation needle tube 6. The second connecting part 11 is provided with a threaded hole that mates with the threaded interface 12.

[0048] Specifically, such as Figure 2 As shown, the upper end of the magnetic navigation needle tube 6 is provided with a first connecting part 10, and a threaded interface 12 is provided on the first connecting part 10. The threaded interface 12 is a hollow structure and is connected to the magnetic navigation needle tube 6. The magnetic navigation needle 3 can be inserted into the magnetic navigation needle tube 6 through the threaded interface 12. A second connecting part 11 is provided at the connection between the magnetic navigation needle 3 and the transmission line 5. The second connecting part 11 is provided with a threaded hole that mates with the threaded interface 12. The threaded hole and the threaded interface 12 are threadedly engaged to fix the second connecting part 11 and the first connecting part 10 together.

[0049] Furthermore, the first connecting part 10 is provided with an insertion hole on the side facing the puncture needle body 2, and the first connecting part 10 is inserted into the puncture needle body 2.

[0050] Specifically, the first connecting part 10 is provided with an insertion hole on the side facing the opening 7. The first connecting part 10 is inserted into the opening 7, thereby fixing the magnetic navigation needle tube 6 inside the puncture needle body 2.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An arterial puncture needle, characterized in that, include: The body includes a puncture needle (1) and a puncture needle body (2). Both the puncture needle (1) and the puncture needle body (2) have hollow structures. The puncture needle (1) is fixedly disposed at one end of the puncture needle body (2). The puncture needle (1) and the puncture needle body (2) are connected. A magnetic navigation needle (3) is disposed inside the puncture needle body (2) at one end, which is away from the puncture needle head (1). The needle head of the magnetic navigation needle (3) is close to the puncture needle head (1). The needle head of the magnetic navigation needle (3) is provided with a sensor assembly (4). The sensor assembly (4) includes an X-axis sensor, a Y-axis sensor and a Z-axis sensor. The needle tail of the magnetic navigation needle (3) is connected to the ultrasound device through a transmission line (5). A magnetic navigation needle tube (6) is provided inside the magnetic navigation needle tube (6). The magnetic navigation needle (3) is disposed inside the magnetic navigation needle tube (6). The end of the magnetic navigation needle tube (6) that passes through the puncture needle body (2) and is away from the puncture needle head (1) is disposed inside the needle body. The end of the magnetic navigation needle tube (6) is close to the puncture needle head (1). The puncture needle body (2) has an opening (7) and a syringe interface (8) at one end away from the puncture needle head (1). The magnetic navigation needle tube (6) is disposed inside the puncture needle body (2) through the opening (7). The angle between the syringe interface (8) and the puncture needle body (2) is an obtuse angle. Guide wire (9), one end of which can pass through the syringe port (8) and the puncture needle body (2) in sequence and extend out from the puncture needle tip (1); The end of the magnetic navigation needle tube (6) near the puncture needle (1) is inclined, and the inclined surface of one end of the magnetic navigation needle tube (6) and the inclined surface of the needle head of the puncture needle (1) are located on the same plane.

2. The arterial puncture needle according to claim 1, characterized in that, Also includes: A syringe connected to the syringe interface (8) contains fluid that can pass through the syringe interface (8) and the puncture needle body (2) in sequence and flow out from the puncture needle tip (1).

3. The arterial puncture needle according to claim 1, characterized in that: The magnetic navigation needle tube (6) has a first connecting part (10) at one end away from the puncture needle (1), and a second connecting part (11) is provided at the connection between the magnetic navigation needle (3) and the transmission line (5) and is fixedly connected to the first connecting part (10). The magnetic navigation needle (3) can pass through the first connecting part (10) and be disposed inside the magnetic navigation needle tube (6).

4. The arterial puncture needle according to claim 3, characterized in that: The first connecting part (10) is provided with a threaded interface (12), which is a hollow structure. The threaded interface (12) is connected to the magnetic navigation needle tube (6). The magnetic navigation needle (3) can pass through the threaded interface (12) and be disposed inside the magnetic navigation needle tube (6). The second connecting part (11) is provided with a threaded hole that mates with the threaded interface (12).

5. The arterial puncture needle according to claim 3, characterized in that: The first connecting part (10) is provided with an insertion hole on the side facing the puncture needle body (2), and the first connecting part (10) is inserted into the puncture needle body (2).

6. The arterial puncture needle according to claim 1, characterized in that: The guidewire (9) is a flexible structure.

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