Puncture device

Abstract

The utility model discloses a puncture device which comprises a rotating seat, a pitching seat, a needle inserting seat and a clamping jaw mechanism, the rotating seat is provided with a rotating driving mechanism for driving the rotating seat to rotate horizontally, the pitching seat is rotatably mounted at the bottom of the rotating seat, and the pitching seat is provided with a pitching driving mechanism for driving the pitching seat to do pitching motion; the needle inserting seat is in sliding fit with the pitching seat, and the needle inserting seat is provided with a sliding driving mechanism for driving the needle inserting seat to slide along the pitching seat; the clamping jaw mechanism is installed on the needle inserting base and used for clamping the puncture needle. According to the automatic puncture needle, automatic puncture can be carried out, manual puncture is replaced, the needle inserting angle and the needle inserting position can be accurately mastered, the success rate of venipuncture is increased, the pain of a patient caused by venipuncture is reduced, the workload of medical staff is reduced, and the medical work efficiency and quality are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical auxiliary equipment, and particularly relates to a puncture device. Background Art

[0002] The blood vessels of humans or animals are all located inside the subcutaneous tissue or body tissue. After a human or animal gets sick, it is often necessary to puncture veins, arteries or tissues. The main purposes are, on the one hand, to obtain blood tissue samples for various laboratory analyses to obtain various biochemical, immune, pathological and other indicators of the patient to guide doctors to make correct judgments; on the other hand, intravenous infusion can be performed on the patient through the venous channel established by puncture.

[0003] The process of venous blood collection: 1. Place the upper limb of the blood donor and place a disposable pad under the upper limb of the blood donor. Tie a tourniquet to stop bleeding at a distance of 7 to 10 cm from the puncture point, clench the fist, select a blood vessel, and perform routine skin disinfection of > 2 cm2 with the puncture point as the center; 2. Insert the blood collection needle into the blood vessel. After successful puncture with visible blood return to the naked eye, connect the vacuum tube and collect the blood volume; 3. Release the tourniquet, let the blood donor relax the fist, pull out the needle, and press the puncture point with a sterile cotton swab for 5 - 10 minutes to complete the blood collection operation.

[0004] For a long time, during the daily venous blood collection in clinical laboratory medicine, whether it is physical examination or medical staff in hospital outpatient clinics and wards responsible for blood collection, they all repeat the same work. The existing method mainly relies on the experience and feel of medical staff for manual puncture. Manual puncture has problems such as large workload and complex processes, and it is easy to miss the blood vessel, which not only brings many inconveniences to the work of medical staff, but also increases the pain of patients. Content of the Utility Model

[0005] The purpose of the utility model is to provide a puncture device to solve the above problems existing in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions: A puncture device includes a rotary seat, a pitching seat, a needle insertion seat and a jaw mechanism. The rotary seat is equipped with a rotary drive mechanism for driving it to rotate horizontally. The pitching seat is rotatably installed at the bottom of the rotary seat, and the pitching seat is equipped with a pitching drive mechanism for driving it to pitch; the needle insertion seat is slidably matched with the pitching seat, and the needle insertion seat is equipped with a sliding drive mechanism for driving it to slide along the pitching seat; the jaw mechanism is installed on the needle insertion seat, and the jaw mechanism is used for clamping a puncture needle.

[0007] As an alternative embodiment of the above technical solution, the pitching drive mechanism includes a pitching drive member, a lifting assembly, and a linkage bar. The output end of the pitching drive member is connected to the lifting assembly. One end of the linkage bar is rotatably connected to the lifting assembly, and the other end of the linkage bar is rotatably connected to the pitching seat.

[0008] As an alternative embodiment of the above technical solution, the lifting assembly includes a lifting seat, a lead screw, and a lead screw sleeve. The lead screw is connected to the output end of the pitching drive member. The lead screw sleeve is connected to the lead screw. The lifting seat is connected to the lead screw sleeve. The lifting seat is provided with a guiding member. One end of the linkage bar is rotatably mounted on the lifting seat.

[0009] As an alternative embodiment of the above technical solution, the guiding member includes a lifting slide rail. The lifting slide rail is disposed on the rotating seat. The lifting seat is provided with a limiting chute adapted to the lifting slide rail.

[0010] As an alternative embodiment of the above technical solution, two connecting plates are provided at the bottom of the rotating seat. A connecting shaft is provided between the two connecting plates. The pitching seat is rotatably connected to the connecting shaft. A tension spring is provided between one of the connecting plates and the pitching seat.

[0011] As an alternative embodiment of the above technical solution, the pitching drive member includes a pitching drive motor. The output end of the pitching drive motor is connected to the lead screw.

[0012] As an alternative embodiment of the above technical solution, the sliding drive mechanism includes a sliding drive member and a pulley assembly. The output end of the sliding drive member is connected to the pulley assembly. A slide bar connected to the pulley assembly is provided on the needle insertion seat. A limiting slideway adapted to the slide bar is provided on the pitching seat.

[0013] As an alternative embodiment of the above technical solution, the pulley assembly includes a driving pulley, a driven pulley, and a transmission belt. The driving pulley is connected to the output end of the sliding drive member. The driving pulley and the driven pulley are connected by the transmission belt. A fixing block connected to the slide bar is provided on one side of the transmission belt.

[0014] As an alternative embodiment of the above technical solution, the sliding drive member includes a sliding drive motor. The output end of the sliding drive motor is connected to the driving pulley.

[0015] As an alternative embodiment of the above technical solution, the rotation drive mechanism includes a rotation drive motor. The output end of the rotation drive motor is connected to the rotating seat.

[0016] As an alternative embodiment of the above technical solution, a camera positioning mechanism is further included. The camera positioning mechanism is used to position the position of the blood vessel.

[0017] As an alternative implementation of the above technical solution, it further includes a ranging and positioning mechanism, which is installed on the rotating base and is used to position the puncture needle.

[0018] As an alternative implementation of the above technical solution, it further includes a spraying mechanism, which is used to spray disinfectant on the puncture site of the blood vessel for disinfection.

[0019] The beneficial effects of the present utility model are as follows:

[0020] (1) It can perform automatic puncture to replace manual puncture. It can accurately master the needle insertion angle and position, improve the success rate of venous puncture, reduce the pain of patients caused by venous puncture, reduce the workload of medical staff, and improve the efficiency and quality of medical care work.

[0021] (2) The transmission method of the lead screw and the lead screw sleeve is adopted to improve the transmission and positioning accuracy, and improve the control accuracy of the pitch angle of the puncture needle.

[0022] (3) The lifting seat and the pitching seat are connected by a linkage bar, and its structure is simple, convenient for installation and debugging, and improves the working stability of the equipment. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of a puncture device in an implementation manner of the present utility model;

[0024] Figure 2 is a schematic structural diagram of a rotation drive mechanism in an implementation manner of the present utility model;

[0025] Figure 3 is a schematic structural diagram of a pitching seat and a needle insertion seat in an implementation manner of the present utility model;

[0026] Figure 4 is a schematic structural diagram of a needle insertion seat and a jaw mechanism in an implementation manner of the present utility model.

[0027] In the figure: 1 - rotating base; 2 - pitching seat; 3 - needle insertion seat; 4 - jaw mechanism; 5 - rotation drive mechanism; 6 - pitching drive mechanism; 7 - sliding drive mechanism; 8 - linkage bar; 9 - lifting seat; 10 - lead screw; 11 - lead screw sleeve; 12 - lifting slide rail; 13 - connecting plate; 14 - tension spring; 15 - pitching drive motor; 16 - slide bar; 17 - sliding drive motor; 18 - camera positioning mechanism; 19 - ranging and positioning mechanism; 20 - spraying mechanism. Detailed Embodiments

[0028] As Figures 1 - 4As shown in the figure, this embodiment provides a puncture device, which includes a rotating base 1, a pitching base 2, a needle insertion base 3, a jaw mechanism 4, a camera positioning mechanism 18, a ranging and positioning mechanism 19, and a spraying mechanism 20. The rotating base 1 is provided with a rotating drive mechanism 5 for driving it to rotate horizontally. The rotating drive mechanism 5 includes a rotating drive motor, and the output end of the rotating drive motor is connected to the rotating base 1. The pitching base 2 is rotatably installed at the bottom of the rotating base 1, and the pitching base 2 is provided with a pitching drive mechanism 6 for driving its pitching motion; the needle insertion base 3 is slidably matched with the pitching base 2, and the needle insertion base 3 is provided with a sliding drive mechanism 7 for driving it to slide back and forth along the pitching base 2; the jaw mechanism 4 is installed on the needle insertion base 3, and the jaw mechanism 4 uses a pneumatic jaw, which is used to clamp the puncture needle.

[0029] As Figure 1 shown in the figure, the camera positioning mechanism 18 is installed on the rotating base 1, and the camera positioning mechanism 18 is used to position the position of the blood vessel. The ranging and positioning mechanism 19 is installed on the rotating base 1, and the ranging and positioning mechanism 19 is used to position the position of the puncture needle. The spraying mechanism 20 is installed on the rotating base 1, and the spraying mechanism 20 is used to spray disinfectant on the puncture site of the blood vessel for disinfection.

[0030] The rotating drive mechanism 5 adjusts the angle of the puncture needle mainly for the following purposes: rotating the position of the ranging and positioning mechanism 19 to facilitate the three-point concentric detection of the puncture needle; rotating the puncture needle to a suitable angle during puncture blood collection to find a suitable blood vessel puncture position. The purpose of the pitching drive mechanism 6 is to control the pitching angle of the puncture needle to find the best puncture angle of the blood vessel. The function of the sliding drive mechanism 7 is to control the forward movement of the puncture needle and puncture it into the blood vessel of the human body. The camera positioning mechanism 18 is a vision camera system that finds the position of the blood vessel used for blood collection by taking pictures. The function of the ranging and positioning mechanism 19 is three-point concentric ranging. The distance to the tip of the needle is detected by a laser ranging sensor to provide corresponding data for the position of the puncture needle. The function of the spraying mechanism 20 is to spray and disinfect the puncture blood collection site before puncture blood collection.

[0031] As Figure 2 shown in the figure, in a specific embodiment, the pitching drive mechanism 6 includes a pitching drive member, a lifting assembly, and a linkage bar 8. The output end of the pitching drive member is connected to the lifting assembly, and one end of the linkage bar 8 is rotatably connected to the lifting assembly, and the other end of the linkage bar 8 is rotatably connected to the pitching base 2. The lifting assembly drives one end of the linkage bar 8 to move up and down, thereby controlling the pitching motion of the pitching base 2. Preferably, two connecting plates 13 are provided at the bottom of the rotating base 1, a connecting shaft is provided between the two connecting plates 13, the pitching base 2 is rotatably connected to the connecting shaft, and a tension spring 14 is provided between one of the connecting plates 13 and the pitching base 2.

[0032] Specifically, the lifting assembly includes a lifting seat 9, a lead screw 10, and a lead screw sleeve 11. The lead screw 10 is connected to the output end of the pitching drive member. The lead screw sleeve 11 is connected to the lead screw 10, and the lifting seat 9 is connected to the lead screw sleeve 11. The lifting seat 9 is provided with a guiding member, and one end of the linkage bar 8 is rotatably installed on the lifting seat 9. The pitching drive member includes a pitching drive motor 15, and the output end of the pitching drive motor 15 is connected to the lead screw 10. The guiding member includes a lifting slide rail 12, which is arranged on the rotating seat 1, and the lifting seat 9 is provided with a limiting chute adapted to the lifting slide rail 12. The pitching drive motor 15 drives the lead screw 10 to rotate, so that the lead screw sleeve 11 and the lifting seat 9 move up and down along the lead screw 10. The lifting seat 9 drives one end of the linkage bar 8 to move up and down, and the linkage bar 8 drives the pitching seat 2 to perform pitching movement, realizing the adjustment of the pitching angle of the puncture needle.

[0033] The pitching drive mechanism 6 of the present utility model adopts a lead screw drive method, which has the characteristics of simple structure, convenient installation, and good stability. Moreover, the assembly process is simplified, the debugging process is also much more convenient, and the overall operation of the module is more stable, greatly improving the stability of the core mechanism of the whole machine.

[0034] As Figure 3 and Figure 4 shown, in a specific embodiment, the sliding drive mechanism 7 includes a sliding drive member and a pulley assembly. The output end of the sliding drive member is connected to the pulley assembly. A slide bar 16 connected to the pulley assembly is provided on the needle insertion seat 3, and a limiting slideway adapted to the slide bar 16 is provided on the pitching seat 2. Specifically, the pulley assembly includes a driving pulley, a driven pulley, and a transmission belt. The driving pulley is connected to the output end of the sliding drive member, and the driving pulley and the driven pulley are connected by the transmission belt. A fixing block connected to the slide bar 16 is provided on one side of the transmission belt. The sliding drive member includes a sliding drive motor 17, and the output end of the sliding drive motor 17 is connected to the driving pulley. The sliding drive motor 17 drives the driving pulley to rotate. The driving pulley drives the transmission belt to move, and the transmission belt drives the slide bar 16 to slide back and forth along the limiting slideway, realizing the control of the needle insertion of the puncture needle.

[0035] The operation principle of the present utility model is as follows: First, the rotation drive mechanism 5 drives the jaw mechanism 4 to rotate 90°. The jaw mechanism 4 grabs the puncture needle. After grabbing the needle, the three-point concentric detection is carried out by using the distance measurement and positioning mechanism 19, and then the puncture position of the blood vessel is found by using the camera positioning mechanism 18. The rotation drive mechanism 5 controls the puncture needle to rotate to an appropriate angle, the pitching drive mechanism 6 controls the puncture needle to maintain an appropriate pitching angle, and the sliding drive mechanism 7 controls the puncture needle to move forward an appropriate distance for blood vessel puncture and blood extraction. The present utility model can automatically complete the puncture process, replacing the traditional manual puncture. Its puncture is stable, the overall stability of the equipment is good, and it can effectively simplify the assembly process and debugging process of the equipment.

[0036] Compared with the prior art, the utility model has the following beneficial advantages:

[0037] (1) Automatic puncture can be performed to replace manual puncture. It can accurately grasp the needle insertion angle and position, improve the success rate of venipuncture, reduce the pain caused by venipuncture to patients, and reduce the workload of medical staff, thereby improving the efficiency and quality of medical work.

[0038] (2) The transmission method of the screw rod 10 and the screw rod sleeve 11 is adopted to improve the transmission positioning accuracy and the pitch angle control accuracy of the puncture needle.

[0039] (3) A linkage bar 8 is used to connect the lifting seat 9 and the pitching seat 2, which has a simple structure, is easy to install and debug, and improves the working stability of the equipment.

[0040] In the description of the present utility model, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be mechanically connected or electrically connected; may be directly connected or indirectly connected through an intermediate medium, may be the internal connection of two components or the interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood. In addition, the specific features, structures, etc. described in the embodiments are included in at least one embodiment. In the absence of mutual contradictions, those skilled in the art may combine the features of different embodiments. The scope of protection of the present utility model is not limited to the above-mentioned specific embodiments. According to the basic technical concept of the present utility model, the embodiments that can be associated with by ordinary technicians in this field without creative work all belong to the scope of protection of the present utility model.

Claims

1. A puncture device, characterized in that: The invention comprises a rotating seat (1), a pitching seat (2), a needle insertion seat (3) and a clamping mechanism (4), wherein the rotating seat (1) is provided with a rotating driving mechanism (5) for driving the rotating seat to rotate horizontally, the pitching seat (2) is rotatably mounted on the bottom of the rotating seat (1), and the pitching seat (2) is provided with a pitching driving mechanism (6) for driving the rotating seat to move in pitch; the needle insertion seat (3) is slidably matched with the pitching seat (2), and the needle insertion seat (3) is provided with a sliding driving mechanism (7) for driving the needle insertion seat to slide along the pitching seat (2); the clamping mechanism (4) is mounted on the needle insertion seat (3), and the clamping mechanism (4) is used for clamping the puncture needle; the pitching driving mechanism (6) comprises a pitching driving member, a lifting assembly and a linkage bar (8), wherein the output end of the pitching driving member is connected to the lifting assembly, one end of the linkage bar (8) is rotatably connected to the lifting assembly, and the other end of the linkage bar (8) is rotatably connected to the pitching seat (2).

2. The puncture device according to claim 1, characterized in that: The lifting assembly comprises a lifting seat (9), a screw rod (10) and a screw rod sleeve (11); the screw rod (10) is connected to the output end of the pitch driving member; the screw rod sleeve (11) is connected to the screw rod (10); the lifting seat (9) is connected to the screw rod sleeve (11); the lifting seat (9) is provided with a guide member; one end of the linkage bar (8) is rotatably mounted on the lifting seat (9).

3. The puncture device according to claim 2, characterized in that: The guide member comprises a lifting slide rail (12), the lifting slide rail (12) is arranged on the rotating seat (1), and the lifting seat (9) is provided with a limiting slide groove adapted to the lifting slide rail (12).

4. The puncture device according to claim 2, characterized in that: Two connecting plates (13) are provided at the bottom of the rotating seat (1), a connecting shaft is provided between the two connecting plates (13), the pitch seat (2) is rotatably connected to the connecting shaft, and a tension spring (14) is provided between one of the connecting plates (13) and the pitch seat (2).

5. The puncture device according to claim 2, characterized in that: The pitch drive component comprises a pitch drive motor (15), and the output end of the pitch drive motor (15) is connected to the lead screw (10).

6. The puncture device according to claim 1, characterized in that: The sliding drive mechanism (7) comprises a sliding drive member and a pulley assembly, wherein the output end of the sliding drive member is connected to the pulley assembly, the needle insertion seat (3) is provided with a slide bar (16) connected to the pulley assembly, and the pitch seat (2) is provided with a limiting slideway adapted to the slide bar (16).

7. The puncture device according to claim 6, characterized in that: The pulley assembly comprises a driving wheel, a driven wheel and a transmission belt, wherein the driving wheel is connected to the output end of the sliding drive member, the driving wheel and the driven wheel are connected via a transmission belt, and a fixed block connected to a slide bar (16) is provided on one side of the transmission belt.

8. The puncture device according to claim 7, characterized in that: The sliding drive member comprises a sliding drive motor (17), and the output end of the sliding drive motor (17) is connected to the driving wheel.

9. The puncture device according to claim 1, characterized in that: The rotary drive mechanism (5) comprises a rotary drive motor, the output end of which is connected to the rotary seat (1).

10. The puncture device according to claim 1, characterized in that: It also includes a camera positioning mechanism (18), wherein the camera positioning mechanism (18) is used to locate the position of the blood vessel; It also includes a distance measuring and positioning mechanism (19), which is installed on the rotating seat (1) and is used to locate the position of the puncture needle; It also comprises a spraying mechanism (20), wherein the spraying mechanism (20) is used to spray disinfectant onto the puncture site of the blood vessel for disinfection.

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