Radial artery puncture device with ultrasound probe function

Abstract

This utility model discloses a radial artery puncture device with ultrasound detection function in the field of radial artery puncture technology. It includes a puncture device base with a puncture channel in the middle, extending through both ends of the puncture device base. A puncture needle and cannula can slide back and forth within the puncture channel. A detection surface is provided at the front end of the puncture device base, on which an ultrasound probe for detecting the radial artery is mounted. The detection surface is tilted towards the puncture channel so that the ultrasound probe is close to the outlet of the puncture channel. A cannula fixing assembly for fixing or releasing the cannula is provided on the right side of the puncture device base, and a puncture needle moving assembly for driving the puncture needle and cannula to advance synchronously or for the puncture needle to retract independently is provided on the left side of the puncture device base. It can accurately puncture the radial artery, achieving success in one attempt, reducing patient pain, and saving time.

Description

Technical Field

[0001] This utility model relates to the field of radial artery puncture technology, specifically to a radial artery puncture device with ultrasound detection function. Background Technology

[0002] Currently, the radial artery puncture needle used for coronary angiography requires doctors to palpate the radial artery pulsation before puncturing. For many patients, multiple punctures are required to achieve success, which increases patient suffering. In some cases, repeated punctures still fail, and other vascular approaches must be used for the procedure, which increases patient suffering and wastes time. Utility Model Content

[0003] The purpose of this invention is to provide a radial artery puncture device with ultrasound detection function to solve the technical problem that radial artery puncture is difficult to succeed in one attempt, which increases patient suffering.

[0004] To solve the above-mentioned technical problems, this utility model specifically provides a radial artery puncture device with ultrasound detection function, including a puncture device base, a puncture channel provided in the middle of the puncture device base, the puncture channel passing through the front and rear ends of the puncture device base, and the puncture needle and cannula can slide back and forth in the puncture channel;

[0005] The front end of the puncture device base is provided with a detection surface, on which an ultrasound probe for detecting the radial artery is mounted, and the detection surface is tilted towards the puncture channel so that the ultrasound probe is close to the outlet of the puncture channel;

[0006] An oscilloscope for displaying the detection results is provided on the upward-facing side of the puncture device base.

[0007] The right side of the trocar base is provided with a cannula fixing assembly for fixing or releasing the cannula, and the left side of the trocar base is provided with a trocar moving assembly for driving the trocar needle and the cannula to advance synchronously or for the trocar needle to retreat independently.

[0008] As a preferred embodiment of this utility model, a cannula fixing hole communicating with the puncture channel is provided on the right side of the puncture device base. The cannula fixing assembly includes a cannula fixing block, a cannula fixing rod, and a cannula pressure plate that are fixedly connected in sequence. The cannula fixing block and the cannula fixing rod are both located in the cannula fixing hole. A cannula spring is sleeved on the cannula fixing rod. The two ends of the cannula spring are fixedly connected to the cannula pressure plate and the puncture device base, respectively.

[0009] As a preferred embodiment of this utility model, the sleeve fixing block is provided with a threaded hole, the end of the sleeve fixing rod is provided with an external thread, the side of the sleeve fixing block away from the sleeve fixing rod is provided with an arc-shaped surface, and an anti-slip layer is attached to the arc-shaped surface.

[0010] As a preferred embodiment of this utility model, a constraint groove is provided on the left side of the puncture device base, and the puncture needle moving assembly can slide along the constraint groove to drive the puncture needle and the cannula to move forward as a whole or the puncture needle to move backward individually.

[0011] As a preferred embodiment of the present invention, the puncture needle moving assembly includes a puncture needle fixing block, a puncture needle fixing rod, and a puncture needle pressure plate that are fixedly connected in sequence. The puncture needle fixing rod is fitted with a puncture needle spring and a sliding plate, and the sliding plate is located at the end of the puncture needle spring near the puncture needle fixing block.

[0012] The constraint groove includes a constraint groove located on the left side of the puncture device base and a connecting groove connecting the constraint groove and the puncture channel. The width of the connecting groove is smaller than the diameter of the puncture channel, and the cross-section of the constraint groove is convex.

[0013] The sliding plate is slidably connected to the constraint groove, and the puncture needle fixing block is slidably connected to the communicating groove.

[0014] As a preferred embodiment of this utility model, the puncture needle fixing block is provided with a threaded hole, the end of the puncture needle fixing rod is provided with an external thread, the side of the puncture needle fixing block away from the puncture needle fixing rod is provided with an arc-shaped surface, and an anti-slip layer is attached to the arc-shaped surface.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This invention uses an ultrasound probe mounted on a detection surface to detect the radial artery. The detection surface is in close contact with the human skin and tilted towards the puncture channel, so the outlet of the puncture channel is close to the ultrasound probe. When the ultrasound probe detects the radial artery, it means that the outlet of the puncture channel is aligned with the radial artery. At this time, the cannula and puncture needle are pushed out from the puncture channel and can be accurately inserted into the radial artery. Success can be achieved in one attempt, reducing patient pain and saving time. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram from the left side view of one embodiment of the present invention;

[0019] Figure 2 for Figure 1 A structural diagram from the right-hand perspective;

[0020] Figure 3 for Figure 1 A structural diagram from the front view;

[0021] Figure 4 This is a schematic diagram of the radial artery puncture device and the moving assembly of the puncture needle in this utility model.

[0022] Figure 5 This is a schematic diagram of the radial artery puncture device cut to the cannula fixation assembly in this utility model;

[0023] Figure 6 This is a schematic diagram showing the positional relationship between the cannula fixing component, the cannula, the puncture needle moving component, and the puncture needle in this utility model;

[0024] Figure 7 for Figure 6 A schematic diagram of the split structure;

[0025] Figure 8 This is a schematic diagram of the structure of the puncture device base when it is cut to the cannula fixing hole in this utility model.

[0026] The labels in the diagram represent the following:

[0027] 1-Puncture device base, 2-Puncture channel, 3-Puncture needle, 4-Cannula, 5-Detection surface, 6-Ultrasonic probe, 7-Oscilloscope, 8-Cannula fixing assembly, 801-Cannula fixing hole, 802-Cannula fixing block, 803-Cannula fixing rod, 804-Cannula pressure plate, 805-Cannula spring, 9-Puncture needle moving assembly, 901-Puncture needle fixing block, 902-Puncture needle fixing rod, 903-Puncture needle pressure plate, 904-Puncture needle spring, 905-Slide plate, 906-Constraint groove, 907-Connecting groove. Detailed Implementation

[0028] 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.

[0029] This utility model specifically provides a radial artery puncture device with ultrasound detection function, including a puncture device base 1, a puncture channel 2 is provided in the middle of the puncture device base 1, the puncture channel 2 passes through the front and rear ends of the puncture device base 1, and the puncture needle 3 and the cannula 4 can slide back and forth in the puncture channel 2.

[0030] The front end of the puncture device base 1 is provided with a detection surface 5, and an ultrasound probe 6 for detecting the radial artery is installed on the detection surface 5. The detection surface 5 is inclined towards the puncture channel 2 so that the ultrasound probe 6 is close to the outlet of the puncture channel 2.

[0031] An oscilloscope 7 for displaying the detection results is provided on the upward-facing side of the puncture device base 1;

[0032] The right side of the puncture device base 1 is provided with a cannula fixing assembly 8 for fixing or releasing the cannula 4, and the left side of the puncture device base 1 is provided with a puncture needle moving assembly 9 for driving the puncture needle 3 and the cannula 4 to advance synchronously or the puncture needle 3 to retreat independently.

[0033] The steps for radial artery puncture in this invention are as follows:

[0034] Filling the cannula 4 and puncture needle 3: Insert the cannula 4 and puncture needle 3 into the puncture device base 1 from the rear end of the puncture channel 2, insert the puncture needle 3 into the cannula 4, and place the cannula 4 over the front end of the puncture needle 3.

[0035] Preliminary fixation of cannula 4: Use cannula fixation component 8 to fix cannula 4 to prevent cannula 4 and puncture needle 3 from sliding directly out from the front end of puncture channel 2.

[0036] Detecting the radial artery: Place the probe 5 against the patient's skin and slide it slowly. When the ultrasound probe 6 detects the radial artery, the oscilloscope can display the corresponding signal.

[0037] Because the probe surface 5 is in contact with the human skin and is tilted towards the puncture channel 2, the outlet of the puncture channel 2 is close to the ultrasound probe 6. When the ultrasound probe 6 detects the radial artery, it means that the outlet of the puncture channel 2 is aligned with the radial artery.

[0038] Radial artery puncture: The cannula fixation component 8 releases the fixation of the cannula 4, and the medical staff pushes the puncture needle 3 forward through the puncture needle moving component 9. Since the cannula 4 is fitted on the front side of the puncture needle 3, the puncture needle 3 drives the cannula 4 to move forward synchronously along the puncture channel 2, so that the cannula 4 and the puncture needle 3 are inserted into the radial artery.

[0039] Withdrawal of puncture needle 3: Since the puncture needle moving assembly 9 is only connected to the puncture needle 3, the puncture needle moving assembly 9 can be used to move the puncture needle 3 backward along the puncture channel 2, so that the puncture needle 3 withdraws from the puncture channel 2, and the cannula 4 remains in the radial artery.

[0040] Inserting the guidewire: Insert the guidewire into the radial artery through the channel and cannula 4 from the rear end of the puncture channel 2, and then withdraw the entire puncture device base 1.

[0041] In summary, this invention uses an ultrasound probe 6 mounted on the detection surface 5 to detect the radial artery. The detection surface 5 is in contact with the human skin and is tilted towards the puncture channel 2. Therefore, the outlet of the puncture channel 2 is close to the ultrasound probe 6. When the ultrasound probe 6 detects the radial artery, it means that the outlet of the puncture channel 2 is aligned with the radial artery. At this time, the cannula 4 and the puncture needle 3 are pushed out from the puncture channel 2 and can be accurately inserted into the radial artery. Success can be achieved in one attempt, reducing patient pain and saving time.

[0042] Furthermore, a cannula fixing hole 801 communicating with the puncture channel 2 is provided on the right side of the puncture device base 1. The cannula fixing assembly 8 includes a cannula fixing block 802, a cannula fixing rod 803 and a cannula pressure plate 804 that are fixedly connected in sequence. The cannula fixing block 802 and the cannula fixing rod 803 are both located in the cannula fixing hole 801. The cannula fixing block 802 fits into the cannula fixing hole 801. A cannula spring 805 is sleeved on the cannula fixing rod 803. The two ends of the cannula spring 805 are fixedly connected to the cannula pressure plate 804 and the puncture device base 1, respectively.

[0043] The above-mentioned sleeve fixing assembly 8 is used as follows:

[0044] Hold the trocar base 1 with your left hand and attach it to the outlet of the trocar channel 2 with sterile paper or other clean material. Press the sterile paper with your index finger to block the outlet of the trocar channel 2. Insert the cannula 4 and the trocar needle 3 into the tail of the trocar channel 2 in sequence with your right hand.

[0045] When the head of the cannula 4 touches the sterile paper, that is, when the head of the cannula 4 reaches the front end of the puncture channel 2, the tail end of the cannula 4 with a larger diameter is located at the position of the cannula fixing component 8. At this time, the right index finger presses the cannula pressure plate 804 to overcome the elastic force of the cannula spring 805, so that the cannula pressure plate 804, the cannula fixing rod 803 and the cannula fixing block 802 move towards the puncture channel 2 simultaneously, so that the cannula fixing block 802 touches the outer surface of the tail end of the cannula 4, and squeezes and fixes the cannula 4 in the puncture channel 2.

[0046] It should be noted that the diameter of the tail of the cannula 4 and the rear of the puncture needle 3 is equal to or slightly smaller than the diameter of the puncture channel 2, so that the cannula 4 and the puncture needle 3 move in a straight line along the direction of the puncture channel 2 during the puncture process, so that the actual puncture path is the same as the preset puncture path, thereby improving the puncture accuracy.

[0047] Furthermore, the sleeve fixing block 802 has a threaded hole, and the end of the sleeve fixing rod 803 has an external thread, with the sleeve fixing block 802 threadedly connected to the sleeve fixing rod 803. It is understood that in actual installation, the sleeve fixing block 802 is first connected to the sleeve fixing rod 803, and then the sleeve fixing block 802 is inserted into the sleeve fixing hole 801.

[0048] The side of the sleeve fixing block 802 away from the sleeve fixing rod 803 is designed with an arc-shaped surface, which can better fit with the tail end of the sleeve 4 and increase the contact area. In addition, an anti-slip layer is attached to the arc-shaped surface to improve the coefficient of friction and make the fixation more reliable.

[0049] Furthermore, a constraint groove is provided on the left side of the puncture device base 1, and the puncture needle moving assembly 9 can slide along the constraint groove to drive the puncture needle 3 and the cannula 4 to move forward as a whole or the puncture needle 3 to move backward individually.

[0050] Understandably, the constraint groove extends to the rear end of the puncture device base 1 to facilitate the installation of the puncture needle moving assembly 9, and the rear end is connected to a sealing plate by screws to prevent the puncture needle moving assembly 9 from detaching.

[0051] The puncture needle moving assembly 9 includes a puncture needle fixing block 901, a puncture needle fixing rod 902 and a puncture needle pressure plate 903 that are fixedly connected in sequence. The puncture needle fixing rod 902 is fitted with a puncture needle spring 904 and a sliding plate 905. The sliding plate 905 is located at one end of the puncture needle spring 904 near the puncture needle fixing block 901.

[0052] The constraint groove includes a constraint groove 906 located on the left side of the puncture device base 1 and a connecting groove 907 connecting the constraint groove 906 and the puncture channel 2. The width of the connecting groove 907 is smaller than the diameter of the puncture channel 2, and the cross-section of the constraint groove 906 is convex.

[0053] The slide plate 905 is slidably connected in the constraint groove 906, and the puncture needle fixing block 901 is slidably connected in the connecting groove 907.

[0054] The method for moving the puncture needle 3 using the aforementioned puncture needle moving component 9 is as follows:

[0055] During puncture: The right thumb presses down on the puncture needle pressure plate 903, overcoming the resistance of the puncture needle spring 904, causing the puncture needle pressure plate 903, puncture needle fixing rod 902, and puncture needle fixing block 901 to move synchronously towards the puncture channel 2. During this process, because the slide plate 905 is slidably connected to the constraint groove 906, the puncture needle fixing block 901 is slidably connected to the connecting groove, and the puncture needle fixing rod 902 is slidably connected to the hole on the slide plate 905, the puncture needle pressure plate 903, puncture needle fixing rod 902, and puncture needle fixing block 901 will only move in a straight line towards the puncture channel 2 and will not rotate.

[0056] When the puncture needle fixing block 901 presses and fixes the rear of the puncture needle 3, the thumb pushes the puncture needle pressure plate 903 forward. The friction between the puncture needle fixing block 901 and the puncture needle 3 can be used to push the puncture needle 3 forward, so that the puncture needle 3 and the cannula 4 are simultaneously punctured from the puncture channel 2 to puncture the radial artery.

[0057] It should be noted that during puncture, the right thumb releases the cannula pressure plate 804, the cannula spring 805 returns to its original position, and the cannula fixing block 802 moves away from the cannula 4, thus releasing the fixation of the cannula 4.

[0058] After puncture: Keep pressing the puncture needle pressure plate 903 with your right thumb and push the puncture needle pressure plate 903 backward so that the puncture needle fixing block 901 pushes the puncture needle 3 backward. Finally, release the puncture needle pressure plate 903 and take the puncture needle 3 out of the puncture channel 2. Insert the guide wire into the radial artery along the channel and the cannula 4 from the rear end of the puncture channel 2. Then withdraw the entire puncture device base 1, that is, withdraw the puncture device base 1 and move the puncture cannula 4 out from the front end of the puncture channel 2.

[0059] Furthermore, the puncture needle fixing block 901 has a threaded hole, the end of the puncture needle fixing rod 902 has an external thread, the side of the puncture needle fixing block 901 away from the puncture needle fixing rod 902 is set as an arc-shaped surface, and an anti-slip layer is attached to the arc-shaped surface.

[0060] The anti-slip layer can be made of rubber, and friction texture can be set on the side facing the puncture channel 2.

[0061] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A radial artery puncture device with ultrasonic detection function, characterized in that, Includes a puncture device base (1), wherein a puncture channel (2) is provided in the middle of the puncture device base (1), the puncture channel (2) passes through the front and rear ends of the puncture device base (1), and the puncture needle (3) and the cannula (4) can slide back and forth in the puncture channel (2); The front end of the puncture device base (1) is provided with a detection surface (5), and an ultrasound probe (6) for detecting the radial artery is installed on the detection surface (5). The detection surface (5) is inclined toward the puncture channel (2) so that the ultrasound probe (6) is close to the outlet of the puncture channel (2). The puncture device base (1) is provided with an oscilloscope (7) for displaying the detection results on the upward-facing side; The right side of the puncture device base (1) is provided with a cannula fixing assembly (8) for fixing or releasing the cannula (4), and the left side of the puncture device base (1) is provided with a puncture needle moving assembly (9) for driving the puncture needle (3) and the cannula (4) to move forward synchronously or for the puncture needle (3) to move backward individually.

2. The radial artery puncture device with ultrasonic detection function according to claim 1, characterized in that, The puncture device base (1) has a cannula fixing hole (801) on its right side that connects to the puncture channel (2). The cannula fixing assembly (8) includes a cannula fixing block (802), a cannula fixing rod (803), and a cannula pressure plate (804) that are fixedly connected in sequence. The cannula fixing block (802) and the cannula fixing rod (803) are both located inside the cannula fixing hole (801). The cannula fixing rod (803) is fitted with a cannula spring (805). The two ends of the cannula spring (805) are fixedly connected to the cannula pressure plate (804) and the puncture device base (1), respectively.

3. The radial artery puncture device with ultrasonic detection function according to claim 2, characterized in that, The sleeve fixing block (802) has a threaded hole, the end of the sleeve fixing rod (803) has an external thread, the side of the sleeve fixing block (802) away from the sleeve fixing rod (803) is set as an arc surface, and an anti-slip layer is attached to the arc surface.

4. The radial artery puncture device with ultrasonic detection function according to claim 1, characterized in that, The left side of the puncture device base (1) is provided with a constraint groove, and the puncture needle moving assembly (9) can slide along the constraint groove to drive the puncture needle (3) and the cannula (4) to move forward as a whole or the puncture needle (3) to move backward individually.

5. A radial artery puncture device with ultrasonic detection function according to claim 4, characterized in that, The puncture needle moving assembly (9) includes a puncture needle fixing block (901), a puncture needle fixing rod (902), and a puncture needle pressure plate (903) that are fixedly connected in sequence. The puncture needle fixing rod (902) is fitted with a puncture needle spring (904) and a sliding plate (905). The sliding plate (905) is located at one end of the puncture needle spring (904) near the puncture needle fixing block (901). The constraint groove includes a constraint groove (906) located on the left side of the puncture device base (1) and a connecting groove (907) connecting the constraint groove (906) and the puncture channel (2). The width of the connecting groove (907) is smaller than the diameter of the puncture channel (2), and the cross-section of the constraint groove (906) is convex. The slide plate (905) is slidably connected to the constraint groove (906), and the puncture needle fixing block (901) is slidably connected to the communication groove (907).

6. A radial artery puncture device with ultrasonic detection function according to claim 5, characterized in that, The puncture needle fixing block (901) has a threaded hole, the end of the puncture needle fixing rod (902) has an external thread, the side of the puncture needle fixing block (901) away from the puncture needle fixing rod (902) is set as an arc surface, and an anti-slip layer is attached to the arc surface.

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