Puncture needle for department of cardiology

Abstract

The puncture needle comprises a needle head and a needle tube, the end, away from the tip end, of the needle tube is communicated with the needle head, the side wall of the needle head is communicated with a blood suction tube, and the outer end of the blood suction tube is connected with a blood collection part used for collecting blood. The radial artery puncture needle is simple in structure and convenient to use, after the needle tube punctures into the wall of a radial artery blood vessel, blood rushes into the needle head from the needle tube due to large artery blood pressure impact force, and after the needle head is filled with the blood, the blood flows out of the needle head along the blood suction tube under the internal pressure of the needle head and the gravity of the blood, and the blood collection part connected with the outer end of the blood suction tube receives the blood. Therefore, the effect of absorbing blood sprayed out when the puncture needle is used for punching is achieved, and follow-up radiography work of medical staff is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a puncture needle for cardiology. Background Art

[0002] Cardiology puncture needles are medical devices specially designed for cardiovascular interventional treatment, and are often used to diagnose and treat various heart and peripheral vascular diseases. Such puncture needles usually have a fine structure and excellent control performance, so that they can accurately penetrate the skin and blood vessel wall under the guidance of ultrasound or X-ray images and enter the target area.

[0003] In the existing coronary angiography, a puncture needle is used to puncture the wall of the radial artery to make a hole, which is convenient for the subsequent insertion of the sheath and guide wire. However, during the puncture needle drilling process, due to the high blood pressure of the radial artery, blood is easy to spray out from the puncture needle through the hole and flow on the arm, causing medical staff to wipe the blood while doing subsequent work, which affects the work efficiency of medical staff. At the same time, since the tip of the puncture needle cannot be predicted after it is inserted into the wall of the radial artery, it is easy to penetrate the upper and lower walls of the radial artery, damage the lower wall of the radial artery, and easily cause increased bleeding. Utility Model Content

[0004] The utility model aims to provide an arterial indwelling needle fixator to address the deficiencies of the prior art. The utility model adopts the design concept of blood pressure impulse to collect the blood sprayed out when the puncture needle is punched, so as to avoid affecting the subsequent angiography work of medical staff.

[0005] The technical solution adopted by this utility model:

[0006] A puncture needle for cardiology comprises a needle and a needle tube, wherein one end of the needle tube away from the tip is connected to the needle, a side wall of the needle is connected to a blood suction blood vessel, and the outer end of the blood suction blood vessel is connected to a blood collecting part for collecting blood.

[0007] As a further improvement of the utility model, a protruding annular sheet is provided on the top of the needle, and the sheet is provided with mutually symmetrical notches, and the notches are used to place sterile hemostatic sheets.

[0008] As a further improvement of the utility model, a flat plate for gripping is provided on the side of the needle.

[0009] As a further improvement of the present invention, the side edge of the needle is provided with a limiting component and an adjusting component, the limiting component is slidably connected to the side edge of the needle, and the bottom surface of the limiting component is connected to the adjusting component.

[0010] As a further improvement of the present invention, the limit assembly comprises a limit frame, the inner wall of the limit frame is provided with a slide groove, a slider is slidably connected in the slide groove, and the slider is connected to the side wall of the needle;

[0011] The bottom surface of the limiting frame is connected to the adjusting component.

[0012] As a further improvement of the present invention, the adjustment assembly includes a rotating member and a clamping plate, the top of the rotating member is connected to the bottom surface of the limiting frame, and the side edge is rotatably connected to the clamping plate.

[0013] As a further improvement of the present invention, the rotating member includes a fixed block, the top surface of the fixed block is fixedly connected to the bottom surface of the limit frame, a rotating rod is passed through the thickness direction of the fixed block, and the rotating rod is rotatably connected to the inner wall of the fixed block.

[0014] As a further improvement of the present invention, the left and right ends of the rotating rod are respectively connected to the clamping plates.

[0015] As a further improvement of the utility model, a soft block is provided at the bottom end of the clamping plate.

[0016] As a further improvement of the utility model, the blood collection part is a blood collection bag or a blood collection bottle.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model has a simple structure and is easy to use. When the needle tube punctures into the radial artery wall, due to the strong impact of arterial blood pressure, blood rushes into the needle from the needle tube. After the needle is filled with blood, the blood flows out of the needle along the suction blood vessel due to the internal pressure of the needle and the gravity of the blood itself. The blood is received by the blood collecting part connected to the outer end of the suction blood vessel, thereby absorbing the blood sprayed out when the puncture needle makes a hole, avoiding affecting the subsequent angiography work of medical personnel. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a schematic diagram of the second state of the overall structure of the utility model;

[0021] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0022] In the figure: 1. needle; 2. needle tube; 3. blood suction tube; 4. annular sheet; 5. notch; 6. sterile hemostatic sheet; 7. flat plate; 8. limit frame; 9. slide groove; 10. slider; 11. clamping plate; 12. fixed block; 13. rotating rod; 14. soft block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] Example 1

[0025] See also Figure 1 The utility model provides a puncture needle for cardiology, comprising: a needle 1 and a needle tube 2, wherein one end of the needle tube 2 away from the tip is connected to the needle 1, a side wall of the needle 1 is connected to a blood suction blood vessel 3, and the outer end of the blood suction blood vessel 3 is connected to a blood collecting part for collecting blood.

[0026] Furthermore, a protruding annular sheet 4 is provided on the top of the needle 1 , and the sheet is provided with mutually symmetrical notches 5 , and the notches 5 are used to place a sterile hemostatic sheet 6 .

[0027] Furthermore, a flat plate 7 for gripping is provided on the side of the needle 1 .

[0028] Preferably, the blood collection part is a blood collection bag or a blood collection bottle.

[0029] It should be noted that the plate 7 and the needle 1 are both made of medical plastic. The sterile hemostatic sheet 6 can be punctured to facilitate the insertion of the guide wire.

[0030] In the above embodiment, the needle 1 and the needle tube 2 are commonly used puncture needles. A flat plate 7 for grasping is provided on the side of the needle 1. After grasping the flat plate 7, it is convenient to puncture into the radial artery. The blood vessel is a commonly used infusion tube, and the outer end of the blood suction tube 3 is connected to a blood collection bag or a blood collection bottle for collecting blood, wherein the blood collection bag or the blood collection bottle can be used according to the actual situation. A sterile hemostatic sheet 6 is used to seal the outlet of the needle 1. The two sides of the sterile hemostatic sheet 6 are embedded in the notch 5 and folded into a 90° angle. The two sides of the sterile hemostatic sheet 6 are pasted on the outer side of the needle 1, which is conducive to the stable installation of the sterile hemostatic sheet 6. In addition, the sterile hemostatic sheet 6 is made of waterproof sheet, and the diameter of a part of the annular sheet body 4 is larger than the inner cavity diameter of the needle 1. When the sterile hemostatic sheet 6 contacts the top surface of the needle 1, it is pasted on the top surface of the needle 1 to prevent the blood in the needle 1 from overflowing from the needle 1.

[0031] In this embodiment, after the needle tube 2 punctures the wall of the radial artery, due to the strong impact of the arterial blood pressure, blood rushes into the needle 1 from the needle tube 2. After the inner cavity of the needle 1 is filled with blood, the blood flows out of the needle 1 along the blood suction tube 3 due to the internal pressure of the needle 1 and the gravity of the blood itself. The blood is received by the blood collecting part connected to the outer end of the blood suction tube 3, thereby collecting the blood sprayed out when the puncture needle pierces the hole, avoiding affecting the subsequent angiography work of medical staff.

[0032] Example 2

[0033] See also Figure 1 to Figure 2 In one embodiment of the utility model, a side of the needle 1 is provided with a limiting component and an adjusting component, the limiting component is slidably connected to the side of the needle 1, and the bottom surface of the limiting component is connected to the adjusting component.

[0034] In this example, the adjustment component can adjust the angle of the needle tube 2, making it easy for medical personnel to grasp the tablet 7 and easily insert it into the radial artery at a good adjusted angle. At the same time, the limit component limits the needle tube 2 from extending into the lower wall of the radial artery, preventing the needle tube 2 from damaging the lower wall of the radial artery, which may easily cause increased bleeding.

[0035] Example 3

[0036] See also Figures 2 to 3 As a preferred embodiment of Example 2, the limit assembly includes a limit frame 8, the inner wall of the limit frame 8 is provided with a slide groove 9, a slider 10 is slidably connected in the slide groove 9, and the slider 10 is connected to the side wall of the needle 1; the bottom surface of the limit frame 8 is connected to the adjustment assembly.

[0037] In this example, after the adjustment component adjusts the angle, grab the flat plate 7, and the slider 10 slides in the chute 9, and stops after sliding to the inner wall of the chute 9. At this time, the tip of the needle tube 2 extends through the upper wall of the radial artery. It is worth noting that the length of the chute 9 is 3 cm, and the slider 10 is 1 cm. The longest sliding distance of the slider 10 is 1 cm, so that when the slider 10 contacts the side of the chute 9 close to the radial artery, the sliding is restricted, and the needle tube 2 can extend into the radial artery by 1 cm, thereby preventing the needle tube 2 from penetrating the upper and lower walls of the radial artery, destroying the lower wall of the radial artery, and easily causing an increase in bleeding. In addition, due to individual differences and specific anatomical structures, the distance from the puncture needle entering the skin to successfully entering the radial artery may be about 1-3 cm. The chute 9 can also be set to 5 cm, and the longest sliding distance of the slider 10 is 3 cm, which is set according to actual conditions.

[0038] Example 4

[0039] See also Figure 1 to Figure 2 As a preferred embodiment of Example 2, the adjustment component includes a rotating member and a clamping plate 11, the top of the rotating member is connected to the bottom surface of the limit frame 8, and the side is rotatably connected to the clamping plate 11.

[0040] Furthermore, the rotating member includes a fixed block 12 , the top surface of which is fixedly connected to the bottom surface of the limiting frame 8 , and a rotating rod 13 is penetrated in the thickness direction thereof, and the rotating rod 13 is rotatably connected to the inner wall of the fixed block 12 .

[0041] Furthermore, the left and right ends of the rotating rod 13 are respectively connected with the clamping plates 11 .

[0042] Preferably, a soft block 14 is provided at the bottom end of the clamping plate 11.

[0043] In this example, the clamping plate 11 is an elastic plate, which is easy to open and clamp at the patient's wrist. Then, the rotating rod 13 rotates in the rotating block to adjust the angle of the needle tube 2 for puncture. In addition, after the clamping plate 11 clamps the wrist, it contacts the skin softly and quickly to prevent the pressure rod from being generated and reduce the patient's experience.

[0044] It should be noted that the rotating rod 13 is a damping shaft, which allows it to stop at a certain angle and remain stable without the need for additional external force to maintain it, thereby facilitating subsequent needle tube 2 puncture operations.

[0045] The working principle of the utility model is:

[0046] When in use, clamp the clamping plate 11 at the patient's wrist, and adjust the angle of the needle tube 2 by rotating the rotating rod 13 in the rotating block. Then grab the flat plate 7 and move the needle 1, so that the slider 10 moves in the slide groove 9 and stops after contacting the inner wall of the slide groove 9. At this time, the needle tube 2 is inserted into the radial artery, and the blood in the radial artery flows into the needle 1 through the pressure barrel needle tube 2, and the sterile hemostatic sheet 6 pasted on the notch 5 of the annular sheet body 4 blocks the blood from spraying out. After the blood fills the needle 1, it flows into the blood collection bag or blood collection bottle through the suction tube 3 to collect the blood overflowing from the needle 1 to avoid affecting the subsequent angiography work of medical staff.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A puncture needle for cardiology, characterized in that: include: A needle (1) and a needle tube (2), wherein the end of the needle tube (2) away from the tip is connected to the needle (1), the side wall of the needle (1) is connected to a blood suction tube (3), and the outer end of the blood suction tube (3) is connected to a blood collection part for collecting blood.

2. The cardiology puncture needle according to claim 1, characterized in that: The top of the needle (1) is provided with a protruding annular sheet (4), and the sheet is provided with mutually symmetrical notches (5), and the notches (5) are used to place a sterile hemostatic sheet (6).

3. The cardiology puncture needle according to claim 1, characterized in that: A flat plate (7) for gripping is provided on the side of the needle (1).

4. The cardiology puncture needle according to claim 1, characterized in that: The side of the needle (1) is provided with a limiting component and an adjusting component, the limiting component is slidably connected to the side of the needle (1), and the bottom surface of the limiting component is connected to the adjusting component.

5. The cardiology puncture needle according to claim 4, characterized in that: The limiting assembly comprises a limiting frame (8), the inner wall of the limiting frame (8) is provided with a slide groove (9), a slider (10) is slidably connected in the slide groove (9), and the slider (10) is connected to the side wall of the needle (1); the bottom surface of the limiting frame (8) is connected to the adjusting assembly.

6. The cardiology puncture needle according to claim 5, characterized in that: The adjustment component comprises a rotating member and a clamping plate (11); the top of the rotating member is connected to the bottom surface of the limiting frame (8), and the side edge is rotatably connected to the clamping plate (11).

7. The cardiology puncture needle according to claim 6, characterized in that: The rotating member comprises a fixed block (12), the top surface of the fixed block (12) is fixedly connected to the bottom surface of the limiting frame (8), a rotating rod (13) is passed through the thickness direction of the fixed block, and the rotating rod (13) is rotatably connected to the inner wall of the fixed block (12).

8. The cardiology puncture needle according to claim 7, characterized in that: The left and right ends of the rotating rod (13) are respectively connected to the clamping plates (11).

9. The cardiology puncture needle according to claim 8, characterized in that: A soft block (14) is provided at the bottom end of the clamping plate (11).

10. The cardiology puncture needle according to claim 1, characterized in that: The blood collection part is a blood collection bag or a blood collection bottle.

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