Multi-section venipuncture tourniquet

Abstract

The invention discloses a multi-section venipuncture tourniquet device, and relates to the technical field of medical instruments. Comprising two telescopic frames which are symmetrically arranged, a holding rod, a first supporting plate and a second supporting plate are sequentially and fixedly installed between the two telescopic frames, a tourniquet is arranged above the holding rod, a plurality of automatic telescopic rods are installed at the bottom of the tourniquet in a dense array mode, tourniquet balls are arranged at the bottoms of the automatic telescopic rods, and pressure sensors, temperature sensors and heating wires are arranged in the tourniquet balls; a camera is arranged at the bottom of the tourniquet, a touch screen is arranged at the top of the tourniquet, and a controller is arranged in the tourniquet and electrically connected with the touch screen and the automatic telescopic rod. The touch screen presents the distribution condition of veins on the back of the hand of a patient, a finger selects one vein on the touch screen and draws a corresponding track, the tourniquet stretches out the automatic telescopic rod according to the track, the tourniquet ball is pressed on the corresponding vein, rolling pressing is conducted on the vein in a targeted mode, meanwhile, the hot compress function is matched, blood vessel dilatation is effectively promoted, and the blood vessel dilatation rate is increased. And the veins are fully filled and exposed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a multi-section venous puncture tourniquet device. Background Art

[0002] In the operation of venous puncture, the conventional process is that before looking for a vein, a nurse first tightens a rubber tube (i.e., a tourniquet) around the patient's arm, and then asks the patient to clench their fist. The role of the rubber tube is to temporarily block the blood return of the arm vein, increase the blood volume in the venous blood vessels, and then make the blood vessels dilate and become full. And asking the patient to clench their fist can further promote muscle contraction, squeeze the blood vessels, and make the veins more full. At the same time, clenching the fist can also make the skin tight, facilitating the nurse to clearly observe and touch the vein, thereby improving the puncture success rate.

[0003] However, in clinical practice, for patients with difficult vascular punctures (such as children, the elderly, and long-term patients with damaged blood vessels due to repeated punctures, resulting in poor blood vessel conditions. These people have thin and inconspicuous blood vessels, poor blood vessel fullness, and low blood vessel elasticity. Even if a blood vessel is found, due to the non-fullness of the blood vessel, the puncture difficulty is relatively large), simply using a rubber tube and asking the patient to clench their fist often fails to achieve the desired effect. At this time, medical staff usually pat the patient's dorsum of the hand, hoping to make the vein full for puncture. However, this method has limited effect. Especially for emaciated patients, patients with non-full blood vessels or collapsed veins, medical staff often need to perform multiple punctures to succeed, which not only increases the patient's pain but also reduces the puncture efficiency. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems raised in the background art, and a multi-section venous puncture tourniquet device is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A multi-section venous puncture tourniquet device includes two symmetrically arranged telescopic frames. Along their own directions, two telescopic frames are sequentially and fixedly installed with a grip rod, a first support plate, and a second support plate. Above the grip rod, there is a tourniquet device, and an inflatable cuff is provided on the second support plate;

[0007] At the bottom of the tourniquet device, a plurality of automatic telescopic rods are installed in a dense array. At the bottom of each automatic telescopic rod, a steering block is rotatably installed. On the steering block, there is a tourniquet ball for pushing and pressing the dorsal vein of the patient. In the tourniquet ball, there are a pressure sensor, a temperature sensor, and a heating wire;

[0008] The bottom of the tourniquet is provided with a camera, and the top is provided with a touch screen. The touch screen is located directly above the automatic telescopic rod and is used to display the image of the patient's dorsal hand captured by the camera. A controller is arranged inside the tourniquet. The controller is electrically connected to the touch screen and the automatic telescopic rod, and is used to receive the touch signal of the touch screen and convert the touch signal into a corresponding control instruction to control the automatic telescopic rod to perform a corresponding telescopic action.

[0009] As a further solution of the present invention: the first support plate is an arc-shaped plate, which is set according to the size of the human wrist, and a soft pad is arranged on the upper surface of the first support plate. The first support frame is fixedly installed at the bottom of the first support plate;

[0010] The second support plate is also an arc-shaped plate, which is set according to the size of the human elbow. An inflatable cuff for adjusting pressure by inflation is installed on the second support plate. The second support frame is fixedly installed at the bottom of the second support plate.

[0011] As a further solution of the present invention: the first support plate and the second support plate are inclined, and the first support plate is located above the second support plate. The inclination angles and relative position relationships of the two are configured with reference to the position relationship between the wrist and the elbow in the natural placement state of the human arm.

[0012] As a further solution of the present invention: a connection block is fixedly installed at the end of the automatic telescopic rod. The steering block is rotatably connected to the connection block through a planetary gear set. A micro motor is arranged on the connection block and is used to drive the steering block to rotate around its own central axis;

[0013] The pressure ball on the steering block is also driven by a micro motor to rotate, and the rotation center of the pressure ball is perpendicular to the rotation center of the connection block;

[0014] The center distance between adjacent automatic telescopic rods is 3-15 mm.

[0015] As a further solution of the present invention: a pressure sensor is installed at the connection between the pressure ball and the steering block, and a heating wire and a temperature sensor are arranged inside the pressure ball;

[0016] The pressure ball is made of insulating material, and the camera has an infrared imaging function.

[0017] As a further solution of the present invention: the tourniquet includes a hollow shell. A touch screen is fixedly installed on the top of the shell. A horizontal plate is fixedly installed inside the shell. The automatic telescopic rod is fixedly installed on the lower surface of the horizontal plate, and the telescopic end of the automatic telescopic rod penetrates through the shell and is exposed outside. The controller is installed on the upper surface of the horizontal plate.

[0018] As a further solution of the present invention: The housing is in the shape of an arch, one side of which is connected to one of the telescopic frames through a rotating structure, and a spring is provided at the rotating connection, and the other side of the housing is placed on the other telescopic frame.

[0019] As a further solution of the present invention: The telescopic frame is composed of a fixed part and a telescopic part. A self-locking handle is installed at the position of the fixed part close to the telescopic part for locking the telescopic part;

[0020] The grip rod and the first support plate are fixedly installed on the fixed part, and the second support plate is fixedly installed on the telescopic part.

[0021] As a further solution of the present invention: The self-locking handle is rotatably installed on the fixed part, and a movable strip is provided at the corresponding position of the fixed part for the self-locking handle. The self-locking handle locks the telescopic part by pressing the movable strip.

[0022] Compared with the existing technology, the advantages of the present invention are as follows:

[0023] 1: The present invention can present the distribution of the dorsal veins of the patient through the touch screen. Medical staff can use their fingers to select a vein on the touch screen and draw the corresponding trajectory. The blood pressure cuff will make the automatic telescopic rod at the corresponding position below extend according to this trajectory, and accurately press the blood pressure ball on the corresponding vein, and perform rolling compression on the vein in a targeted manner. At the same time, with the cooperation of the hot compress function, it effectively promotes blood vessel dilation, makes the veins fully filled and exposed, and greatly improves the accuracy of puncture.

[0024] 2: The blood pressure ball can flexibly adjust its own rolling direction and pressing force. When pressing, the rolling direction of the blood pressure ball can be kept consistent with the vein direction, and along the vein direction, first roll and press from the proximal end to the distal end in turn. After a few seconds, then roll and press in the reverse direction from the distal end to the proximal end. This operation method can effectively push the blood to flow towards the distal end, promote the filling of the vein. After a few seconds, then roll and press in the reverse direction from the distal end to the proximal end again to further consolidate the filling effect of the vein.

[0025] 3: Using an inflatable cuff to replace the traditional rubber tube, medical staff can accurately adjust the pressure in the cuff according to the specific conditions of the patient, such as age, blood vessel condition, etc., to achieve the best vein filling effect, and at the same time avoid affecting puncture due to too high or too low pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the present invention when the touch screen displays the dorsal veins of the hand;

[0027] Figure 2 It is a schematic structural diagram of the present invention when the touch screen does not display the dorsal veins of the hand;

[0028] Figure 3Schematic diagram of the structure of the blood pressure cuff of the present invention when it is in the open state;

[0029] Figure 4 Another perspective schematic diagram of the structure of the blood pressure cuff of the present invention when it is in the open state;

[0030] Figure 5 For Figure 4 Partial enlarged schematic diagram of the structure at position A in

[0031] Figure 6 For Figure 4 Partial enlarged schematic diagram of the structure at position B in

[0032] Figure 7 Schematic diagram of the disassembled structure of the telescopic frame, the first support plate, the second support plate, and the blood pressure cuff of the present invention;

[0033] Figure 8 Schematic diagram of the structure of the blood pressure cuff of the present invention;

[0034] Figure 9 Schematic diagram of the structure of the telescopic frame of the present invention;

[0035] Figure 10 Schematic diagram of the structure of the first support plate of the present invention;

[0036] Figure 11 Schematic diagram of the structure of the second support plate of the present invention;

[0037] Figure 12 Schematic diagram of the internal structure of the blood pressure cuff of the present invention;

[0038] Figure 13 Schematic diagram of the connection structure of the automatic telescopic rod and the blood pressure ball of the present invention;

[0039] Figure 14 Schematic diagram of the connection structure of the connection block, the steering block, and the blood pressure ball of the present invention;

[0040] Figure 15 Schematic diagram of the connection structure of the steering block and the blood pressure ball of the present invention.

[0041] In the figure: 1. Telescopic frame; 11. Fixed part; 12. Telescopic part; 13. Self-locking handle; 131. Movable strip; 2. Grip bar; 3. First support plate; 31. Soft pad; 32. First support frame; 4. Second support plate; 41. Inflatable cuff; 42. Second support frame; 5. Blood pressure cuff; 51. Automatic telescopic rod; 511. Connection block; 52. Steering block; 53. Blood pressure ball; 54. Touch screen; 55. Housing; 551. Horizontal plate; 552. Controller. Detailed implementation manners

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] Referring to Figure 1-13 , a multi-section venous puncture tourniquet device includes two symmetrically arranged telescopic frames 1. The telescopic frame 1 is composed of a fixed part 11 and a telescopic part 12. A self-locking handle 13 is installed at the position of the fixed part 11 close to the telescopic part 12. The self-locking handle 13 is rotatably installed on the fixed part 11. A movable bar 131 is provided at the corresponding position of the fixed part 11 for the self-locking handle 13. The self-locking handle 13 locks the telescopic part 12 by pressing the movable bar 131. Rotating the self-locking handle 13, the self-locking handle 13 will release the movable bar 131 and release the locking of the telescopic part 12.

[0044] Before the actual use of this application, first adjust the telescopic frame 1 according to the patient's body type and arm length. When the length needs to be adjusted, loosen the self-locking handle 13. At this time, the self-locking handle 13 no longer presses the movable bar 131 on the fixed part 11, and the telescopic part 12 can slide relative to the fixed part 11. After adjusting to the appropriate position, tighten the self-locking handle 13 to make it press the movable bar 131, thereby locking the telescopic part 12.

[0045] A grip rod 2, a first support plate 3 and a second support plate 4 are fixedly installed in sequence between the two telescopic frames 1 along the direction of the telescopic frame 1. A tourniquet 5 is provided above the grip rod 2. Among them, the grip rod 2 and the first support plate 3 are fixedly installed on the fixed part 11, and the second support plate 4 is fixedly installed on the telescopic part 12. By adjusting the telescopic frame 1, the distance between the first support plate 3 and the second support plate 4 can be adjusted. Such a design can meet the usage requirements of different patients.

[0046] When the patient is about to perform venous puncture, place the arm on the first support plate 3 and the second support plate 4, and at the same time hold the grip rod 2 with the hand in a fist shape. The first support plate 3 is an arc-shaped plate, designed according to the size of the human wrist. The soft pad 31 on the upper surface can improve the comfort of the patient's wrist placement, and the first support frame 32 at the bottom plays a role in stable support. The second support plate 4 is also an arc-shaped plate, set according to the size of the human elbow. The inflatable cuff 41 installed on it can adjust the pressure by inflation to simulate the function of a traditional tourniquet, and the second support frame 42 at the bottom ensures the stability of the second support plate 4.

[0047] The first support plate 3 and the second support plate 4 are inclined, and the first support plate 3 is located above the second support plate 4. The inclination angles and relative position relationships of the two are configured with reference to the position relationship between the wrist and the elbow in the natural placement state of the human arm, so that the patient's arm can be placed on the device naturally and comfortably.

[0048] During the entire intravenous puncture preparation process, medical staff can precisely adjust the pressure of the inflatable cuff 41 according to the specific conditions of the patient, such as age, vascular condition, etc., to achieve the best venous filling effect. For example, for young patients with good vascular conditions, whose veins are usually obvious and elastic, the pressure of the inflatable cuff 41 can be adjusted to a lower level, such as the first pressure level; for middle-aged patients or patients with slightly poor vascular elasticity, considering the vascular conditions of such patients, it is necessary to appropriately increase the pressure of the inflatable cuff 41, and it can be adjusted to the second pressure level; for elderly patients, emaciated patients or patients with non-filled veins, the difficulty of intravenous puncture for such patients is relatively high, and the pressure of the inflatable cuff 41 needs to be increased to the third pressure level;

[0049] In addition, for ordinary patients, only the inflatable cuff 41 is needed, and they can be directly punctured after the veins are prominent. For patients whose veins are still not filled after using the inflatable cuff 41, in addition to the inflatable cuff 41, the function of the tourniquet 5 also needs to be utilized to improve the success rate of intravenous puncture.

[0050] Refer to Figure 1-6 , the housing 55 of the tourniquet 5 is in an arch shape. One side of the housing 55 is connected to one of the telescopic frames 1 through a rotating structure, and a spring is provided at the rotating connection to ensure that the tourniquet 5 can hover at any angle when in the open state. The other side of the housing 55 is placed on the other telescopic frame 1. The tourniquet 5 is in the open state in the initial state (as shown in Figure 3 ), and when needed, it is buckled (as shown in Figure 1 ).

[0051] A touch screen 54 is fixedly installed on the top of the housing 55, and a horizontal plate 551 is fixedly installed inside. A plurality of automatic telescopic rods 51 are fixedly installed on the lower surface of the horizontal plate 551 in a dense array form. The telescopic ends of the automatic telescopic rods 51 penetrate through the housing 55 and are exposed outside. The center distance between adjacent automatic telescopic rods 51 is between 3 - 15 mm (preferably 5 - 10 mm). This design is based on the minimum branch diameter of the dorsal hand veins (about 0.8 - 1.2 mm) and the venous distribution density (the distance between the main veins on the adult dorsal hand is usually 5 - 12 mm). This distance setting can ensure that a sufficient number of automatic telescopic rods 51 cover the dorsal hand vein area.

[0052] A controller 552 is installed on the upper surface of the horizontal plate 551. The controller 552 is electrically connected to the touch screen 54 and the automatic telescopic rod 51. The camera at the bottom of the blood pressure cuff 5 takes pictures of the patient's dorsal hand and presents the pictures on the touch screen 54. The camera has an infrared imaging function and presents the veins on the dorsal hand through near-infrared imaging technology. Medical staff observe the distribution of the dorsal hand veins on the touch screen 54, select the target vein on the touch screen 54 and draw a trajectory. The controller 552 receives the touch signal of the touch screen 54, converts it into a control instruction, and controls the automatic telescopic rod 51 at the corresponding position below to perform telescopic actions.

[0053] Referring to Figure 12-15 , a connecting block 511 is fixedly installed at the end of the automatic telescopic rod 51. The steering block 52 is rotatably connected to the connecting block 511 through a planetary gear set. The micro motor on the connecting block 511 drives the steering block 52 to rotate around its own central axis (as Figure 15 shown, in the present application, the steering block 52 realizes self-rotation connection through the setting of a planetary gear set and a micro motor. The planetary gear set has good rigidity and stability, can resist external interference, ensure the stable self-rotation of the steering block 52, and can accurately control the steering angle);

[0054] The blood pressure cuff 53 on the steering block 52 is also driven to rotate by a micro motor, and the rotation center of the blood pressure cuff 53 is perpendicular to the rotation center of the connecting block 511. Such a structural design enables the blood pressure cuff 53 to flexibly adjust the rolling angle.

[0055] A pressure sensor is installed at the connection between the blood pressure cuff 53 and the steering block 52. When the automatic telescopic rod 51 extends, the blood pressure cuff 53 contacts the patient's dorsal hand vein. The pressure sensor installed at the connection between the blood pressure cuff 53 and the steering block 52 monitors the pressing force in real time. At the same time, the temperature sensor and the heating wire inside the blood pressure cuff 53 work together to realize the heating function of the blood pressure cuff 53. The heating temperature is fed back to the controller 552 by the temperature sensor for precise control. Moreover, the blood pressure cuff 53 is made of insulating material to ensure safe use. Medical staff can adjust the pressing force and heating temperature of the blood pressure cuff 53 through the controller 552 according to actual needs.

[0056] It should be noted here that after the automatic telescopic rod 51 extends, the blood pressure cuff 53 only contacts the patient's dorsal hand vein and does not immediately perform the pressing operation. Before performing the pressing operation, according to the vein direction displayed on the touch screen 54, the steering block 52 will rotate to adjust the rolling direction of the blood pressure cuff 53 to make the rolling direction of the blood pressure cuff 53 consistent with the vein direction. And when performing the pressing operation, the extended automatic telescopic rod 51 will roll down sequentially along the vein trajectory;

[0057] Taking the rolling operation from the proximal end to the distal end as an example, after the automatic telescopic rod 51 extends, the automatic telescopic rod 51 closest to the proximal end responds first. It will move slightly downward, driving the blood pressure ball 53 to press the dorsal vein of the hand. During the pressing process, the blood pressure ball 53 performs rolling pressing according to the set rotation speed and strength. After that, this automatic telescopic rod 51 will slightly lift upward to avoid causing continuous excessive pressure on this vein. Immediately afterwards, the second automatic telescopic rod 51 closest to the proximal end repeats the above actions, also slightly pressing the dorsal vein of the hand downward, and at the same time the blood pressure ball 53 starts rolling pressing. This is carried out in an orderly manner in sequence until all the blood pressure balls 53 on the vein trajectory have completed the rolling operation from the proximal end to the distal end.

[0058] This operation method of rolling in sequence from the proximal end to the distal end can effectively promote the blood to flow towards the distal end, just like providing a "boosting force" for the blood flow, making the venous blood vessels quickly fill up. After several seconds of rolling operation, in order to further consolidate the filling effect of the vein, then in the reverse order, that is, rolling from the distal end to the proximal end. At this time, the blood pressure ball 53 and the automatic telescopic rod 51 work together again, starting from the distal end, and sequentially performing reverse rolling on the vein to further promote blood circulation and stasis, keeping the vein in a filled state and providing more favorable conditions for the subsequent venous puncture operation.

[0059] Further explanation, the above fixed connection, unless otherwise clearly stipulated and limited, should be understood in a broad sense. For example, it can be welding, gluing, or integrally formed setting, etc., which are common means well-known to those skilled in the art.

[0060] The working steps of this application are as follows:

[0061] S1: According to the patient's body type and arm length, rotate the self-locking handle 13, loosen the telescopic part 12, adjust the length of the telescopic frame 1. After the adjustment is completed, rotate the self-locking handle 13 again to press the movable strip 131 and lock the telescopic part 12 to adjust the distance between the first support plate 3 and the second support plate 4;

[0062] S2: The patient places the arm on the first support plate 3 and the second support plate 4, holds the grip rod 2 with the hand in a fist shape. The medical staff inflates the inflatable cuff 41 on the second support plate 4 according to the patient's age, blood vessel condition, etc., and adjusts it to the optimal venous filling pressure. At this time, for patients with obvious veins, the puncture operation can be directly carried out. For patients with non-obvious veins, continue with the subsequent operations;

[0063] S3: Fasten the venous occluder 5, then turn on the touch screen 54. The camera at the bottom of the venous occluder 5 captures the image of the patient's dorsum of the hand. The camera uses near-infrared imaging technology to present the veins on the dorsum of the hand, which is then shown on the touch screen 54. Medical staff observe the distribution of the veins on the dorsum of the hand, select the target vein on the touch screen 54 and draw a trajectory;

[0064] S4: The controller 552 receives the touch signal from the touch screen 54 and converts it into a control instruction to control the automatic telescopic rod 51 to extend. After the automatic telescopic rod 51 extends, the steering block 52 rotates driven by the micro motor to adjust the rolling direction of the pressure ball 53 so that it is consistent with the vein direction;

[0065] S5: From the proximal end to the distal end, the automatic telescopic rod 51 drives the pressure ball 53 to press the veins on the dorsum of the hand in sequence. The pressure ball 53 rolls and presses according to the set speed and force. After each press, the automatic telescopic rod 51 slightly lifts until all the rolling and pressing operations in this direction are completed to promote venous distension;

[0066] S6: After completing the rolling and pressing from the proximal end to the distal end, the automatic telescopic rod 51 and the pressure ball 53 roll and press again in the order from the distal end to the proximal end to consolidate the venous distension effect;

[0067] S7: End the pressing operation, retract the automatic telescopic rod 51, then open the venous occluder 5 to perform venipuncture on the patient.

[0068] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A multi-stage venipuncture and pulse compression device, comprising two symmetrically arranged telescopic frames (1), characterized in that: A gripping rod (2), a first support plate (3) and a second support plate (4) are fixedly installed in sequence between the two telescopic frames (1) along their own direction; a pulse compressor (5) is provided above the gripping rod (2), and an inflatable cuff (41) is provided on the second support plate (4); The bottom of the pulse compressor (5) is provided with a plurality of automatic telescopic rods (51) in a dense array, and a steering block (52) is rotatably mounted at the bottom of each automatic telescopic rod (51). The steering block (52) is provided with a pulse compression ball (53) for pressing the vein on the back of the patient's hand, and the pulse compression ball (53) is provided with a pressure sensor, a temperature sensor and a heating wire; The pulse compressor (5) is provided with a camera at the bottom and a touch screen (54) at the top. The touch screen (54) is located directly above the automatic telescopic rod (51) and is used to present an image of the back of the patient's hand taken by the camera. The pulse compressor (5) is provided with a controller (552) inside. The controller (552) is electrically connected to the touch screen (54) and the automatic telescopic rod (51) and is used to receive a touch signal from the touch screen (54) and convert the touch signal into a corresponding control instruction to control the automatic telescopic rod (51) to perform a corresponding telescopic action.

2. A multi-stage venipuncture and pulse compression device according to claim 1, characterized in that: The first support plate (3) is an arc-shaped plate, which is configured according to the size of a human wrist, and a soft cushion (31) is provided on the upper surface of the first support plate (3), and a first support frame (32) is fixedly mounted on the bottom of the first support plate (3); The second support plate (4) is also an arc-shaped plate and is configured according to the size of a human elbow. An inflatable cuff (41) for adjusting pressure by inflation is mounted on the second support plate (4), and a second support frame (42) is fixedly mounted on the bottom of the second support plate (4).

3. A multi-stage venipuncture and pulse compression device according to claim 2, characterized in that: The first support plate (3) and the second support plate (4) are arranged obliquely, and the first support plate (3) is located above the second support plate (4). The inclination angle and relative position relationship between the two are configured with reference to the positional relationship between the wrist and the elbow when the human arm is naturally placed.

4. A multi-stage venipuncture and pulse compression device according to claim 3, characterized in that: A connecting block (511) is fixedly mounted on the end of the automatic telescopic rod (51), the steering block (52) is rotationally connected to the connecting block (511) via a planetary gear set, and a micro motor is provided on the connecting block (511) for driving the steering block (52) to rotate with its own central axis as the rotation center; The pressure ball (53) on the steering block (52) is also driven by a micro motor to rotate, and the rotation center of the pressure ball (53) and the rotation center of the connecting block (511) are perpendicular to each other; The center distance between adjacent automatic telescopic rods (51) is 3-15 mm.

5. A multi-stage venipuncture and pulse compression device according to claim 4, characterized in that: A pressure sensor is installed at the connection between the compression ball (53) and the steering block (52), and a heating wire and a temperature sensor are arranged inside the compression ball (53); The anesthesia ball (53) is made of insulating material, and the camera has an infrared imaging function.

6. A multi-stage venipuncture and pulse compression device according to claim 5, characterized in that: The pulse compressor (5) comprises a hollow shell (55), a touch screen (54) is fixedly mounted on the top of the shell (55), a horizontal plate (551) is fixedly mounted inside the shell (55), the automatic telescopic rod (51) is fixedly mounted on the lower surface of the horizontal plate (551), and the telescopic end of the automatic telescopic rod (51) passes through the shell (55) and is exposed to the outside, and a controller (552) is mounted on the upper surface of the horizontal plate (551).

7. A multi-stage venipuncture and pulse compression device according to claim 6, characterized in that: The shell (55) is in the shape of an arch, one side of the shell (55) is connected to one of the telescopic frames (1) via a rotating structure, a spring is provided at the rotating connection, and the other side of the shell (55) rests on the other telescopic frame (1).

8. A multi-stage venipuncture and pulse compression device according to claim 7, characterized in that: The telescopic frame (1) is composed of a fixed portion (11) and a telescopic portion (12); the fixed portion (11) is provided with a self-locking handle (13) at a position close to the telescopic portion (12) for locking the telescopic portion (12); The gripping rod (2) and the first supporting plate (3) are fixedly mounted on the fixed portion (11), and the second supporting plate (4) is fixedly mounted on the telescopic portion (12).

9. A multi-stage venipuncture and pulse compression device according to claim 8, characterized in that: The self-locking handle (13) is rotatably mounted on the fixed portion (11); the fixed portion (11) is provided with a movable bar (131) at a position corresponding to the self-locking handle (13); the self-locking handle (13) locks the telescopic portion (12) by pressing the movable bar (131).

Images