Anti-falling venipuncture tube

Abstract

The anti-falling venipuncture tube comprises a tube body and a suction cup base, a plurality of suction cups are evenly distributed at the bottom of the suction cup base, a puncture operation opening is formed in the position, corresponding to a puncture point, of the center of the suction cup base, and the anti-falling venipuncture tube is adsorbed and fixed to the skin of a patient through bionic structures of the suction cups. The fixing effect is guaranteed, meanwhile, skin discomfort of a patient caused by dressing glue is effectively avoided, pulling at the puncture point of the tube body is reduced through the elastic telescopic connecting band and the tube body fixing base, the puncture end of the venipuncture tube is prevented from slipping off, all the parts, except for the tube body, of the device can be repeatedly cleaned and disinfected for use, and use is convenient. Through the combination of biomechanical optimization and an external force buffering structure, the risk that the emergency treatment catheter falls off is systematically reduced on the premise that the medical cost is not greatly increased, and the emergency treatment catheter is particularly suitable for the disordered and busy working scene of emergency treatment.

Description

Technical Field

[0001] This utility model relates to the field of intravenous puncture tube technology, specifically to an anti-dislodgement intravenous puncture tube. Background Technology

[0002] As a crucial instrument in clinical diagnosis and treatment, the reliability of intravenous catheter fixation directly affects patient safety and treatment outcomes. Current technology primarily employs medical tape combined with transparent dressings for fixation. However, in emergency situations, the tape easily loses its adhesiveness due to moisture or skin oils, leading to catheter dislodgement. Furthermore, in the busy and chaotic emergency environment, the connecting catheter is easily pulled accidentally by passersby. Without cushioning, the catheter's fixation point is directly subjected to external force, increasing the risk of accidental dislodgement. Therefore, we propose an anti-dislodgement intravenous catheter. Utility Model Content

[0003] The purpose of this invention is to address the problem that, in emergency situations, the adhesive tape used for fixing transparent dressings loses its stickiness due to moisture or skin oils, leading to the dislodgement of the intravenous catheter. Furthermore, in the busy and chaotic environment of an emergency room, the connecting catheter is easily pulled by passersby, and since there is no cushioning when the connecting catheter is pulled, the fixation point of the intravenous catheter is directly subjected to external force, easily leading to accidental dislodgement. This invention provides an anti-dislodgement intravenous catheter.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an anti-dislodgement venous puncture tube, comprising a tube body and a suction cup base, wherein multiple suction cups are evenly arranged at the lower part of the suction cup base, and a puncture operation port is opened at the center of the suction cup base. The upper part of the suction cup base is provided with a fixed connecting seat, a proximal fixing strap, an elastic telescopic connecting strap and a tube body fixing seat connected in sequence, and the tube body can be connected to the tube body fixing seat by medical tape.

[0005] This utility model also includes the following auxiliary technical solutions:

[0006] A movable magnet is fixedly connected to the bottom of the near end of the elastic telescopic connecting belt. A fixed magnet is embedded in the suction cup base at the position corresponding to the movable magnet, and the movable magnet attracts the fixed magnet.

[0007] A separation triggering mechanism is embedded at the bottom of the outer end of the near-end fixing band, and a separation alarm is embedded in the fixing connection seat. The power line of the separation alarm is electrically connected through the separation triggering mechanism.

[0008] The separation trigger mechanism includes two V-shaped energized contacts. A square slot is provided at the bottom of the near-end fixed band corresponding to the V-shaped energized contacts, and the two V-shaped energized contacts are fixedly connected to the inner walls of the square slots on both sides. The power cord of the separation alarm is disconnected in the middle, and the disconnected power cord extends towards the side of the moving magnet and is fixedly connected to the two V-shaped energized contacts. An inclined elastic contact copper sheet is provided on the opposite side of the two V-shaped energized contacts. An insulating plastic spacer is embedded at the center of the two V-shaped energized contacts at the upper end of the tube. The upper end of the insulating plastic spacer penetrates the top surface of the tube and is inserted between the two V-shaped energized contacts.

[0009] The elastic telescopic connecting strip is an elastic rubber strip, and the tube body is bent between the puncture point and the fixed position of the tube body fixing seat.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model uses a biomimetic suction cup structure to adhere and fix the catheter to the patient's skin, ensuring a secure fixation while effectively avoiding skin discomfort caused by dressing adhesive. The elastic telescopic connecting strap and tube fixation seat allow the elasticity of the connecting strap to absorb energy during external force pulling on the catheter, reducing strain at the puncture point and preventing slippage of the venous catheter. Except for the tube body, all parts of this device can be repeatedly cleaned, disinfected, and reused. Through the combination of biomechanical optimization and external force buffering structure, the risk of emergency catheter dislodgement is systematically reduced without significantly increasing medical costs, making it particularly suitable for the chaotic and busy work environment of an emergency room.

[0012] 2. This utility model uses a movable magnet block and a fixed magnet block. The movable magnet block and the fixed magnet block can attract and fix the outer end of the near-end fixing band. The guide tube is quickly locked by magnetic positioning, forming a "near-end fixing + far-end buffer" double anchor structure to disperse stress concentration.

[0013] 3. When the separation trigger mechanism is activated, the miniature buzzer immediately emits a loud alarm sound to alert medical staff to the possibility of catheter dislodgement. This design promptly draws the attention of medical staff, ensuring they can take swift action to prevent accidental dislodgement of the intravenous catheter, thereby protecting patient safety. Simultaneously, the design of the separation trigger mechanism ensures that the alarm is only triggered when the outer end of the proximal fixation band separates, avoiding false alarms and unnecessary interference. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention;

[0015] Figure 2 This is a bottom view of the present invention;

[0016] Figure 3 This is a side sectional view of the present invention;

[0017] Figure 4 This is a utility model Figure 3 Enlarged view of point A in the middle.

[0018] Reference numerals: 1. Tube body; 2. Suction cup base; 3. Suction cup; 4. Fixed connection seat; 5. Proximal fixing strap; 6. Elastic telescopic connection strap; 7. Tube body fixing seat; 8. V-shaped energized contact piece; 9. Movable magnet block; 10. Puncture operation port; 11. Fixed magnet block; 12. Separation alarm; 13. Insulating plastic partition. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] Please see Figures 1-4 This utility model provides an anti-dislodgement venous puncture tube, including a tube body 1 and a suction cup base 2. Multiple suction cups 3 are evenly distributed at the bottom of the suction cup base 2. A puncture operation port 10 is opened at the center of the suction cup base 2 corresponding to the puncture point. A proximal fixation strap 5 is fixedly connected to one side of the upper end of the tube body 1 through a fixed connecting seat 4. The outer end of the proximal fixation strap 5 is fixedly connected to a tube body fixation seat 7 through an elastic telescopic connecting strap 6. The connecting catheter of the tube body 1 at the upper end of the tube body fixation seat 7 is wrapped and fixed to the tube body fixation seat 7 by a bandage.

[0021] The suction cup base 2 and the suction cup 3 are integrally molded from medical-grade silicone, and the suction cup 3 is pre-coated with water-activated adhesive. The water-activated adhesive uses a hydroxyethyl cellulose-poloxam complex, which can enhance the adsorption effect of the suction cup 3 when it comes into contact with skin sweat, and further prevent the suction cup base 2 from falling off.

[0022] A movable magnet 9 is fixedly connected to the bottom of the outer end of the proximal fixing band 5. A fixed magnet 11 is embedded at the outer end of the tube body 1 at the position corresponding to the movable magnet 9. The movable magnet 9 and the fixed magnet 11 have opposite magnetic properties on opposite sides. Through the movable magnet 9 and the fixed magnet 11, the outer end of the proximal fixing band 5 can be attracted and fixed. The guide tube is quickly locked by magnetic positioning, forming a "proximal fixing + distal buffer" double anchor structure to disperse stress concentration.

[0023] A separation trigger mechanism is embedded at the bottom of the outer end of the proximal fixation strap 5, and a separation alarm 12 is embedded in the fixing connection seat 4. The power cord of the separation alarm 12 is electrically connected through the separation trigger mechanism. The separation alarm 12 is triggered by the separation trigger mechanism when the outer end of the proximal fixation strap 5 is separated, energizing the alarm 12. The separation alarm 12 includes a button battery and a miniature buzzer. The button battery provides power to the miniature buzzer. When the separation trigger mechanism is triggered, the miniature buzzer immediately emits a loud alarm sound, alerting medical staff to the possibility of catheter dislodgement. This design promptly draws the attention of medical staff, ensuring they can take swift action to prevent accidental dislodgement of the venous catheter, thus protecting patient safety. Simultaneously, the design of the separation trigger mechanism ensures that the alarm is only triggered when the outer end of the proximal fixation strap 5 is separated, avoiding false alarms and unnecessary interference.

[0024] The separation trigger mechanism includes two V-shaped energized contacts 8. A square slot is provided at the bottom of the near-end fixing band 5 corresponding to the V-shaped energized contacts 8, and the two V-shaped energized contacts 8 are respectively fixedly connected to the inner walls of the square slots on both sides. The power cord of the separation alarm 12 is disconnected in the middle, and the disconnected power cord extends towards the moving magnet block 9 and is fixedly connected to the two V-shaped energized contacts 8. Inclined, opposing elastic contact copper sheets are provided on opposite sides of the two V-shaped energized contacts 8. An insulating plastic spacer 13 is embedded at the upper end of the tube body 1 corresponding to the center of the two V-shaped energized contacts 8. The upper end of the insulating plastic spacer 13 penetrates the top surface of the tube body 1 and is inserted between the two V-shaped energized contacts 8. The insulating plastic spacer 13 is inserted between two V-shaped energized contacts 8 when the near-end fixing band 5 is fixed by the attraction of the movable magnet 9 and the fixed magnet 11. This disconnects the connection between the power lines of the two V-shaped energized contacts 8. When the tube body 1 is subjected to an external pulling force that exceeds the attraction force of the movable magnet 9 and the fixed magnet 11, the near-end fixing band 5 separates from the suction cup base 2. The insulating plastic spacer 13 is pulled out, and the elastic contact copper sheets on opposite sides of the two V-shaped energized contacts 8 abut against each other, thus connecting the power lines of the separation alarm 12 and triggering the buzzer alarm function of the separation alarm 12. This has the advantages of simple structure, convenient operation, and good fixing effect.

[0025] The elastic telescopic connecting band 6 is an elastic rubber strip, and the tube body 1 is bent between the puncture point and the fixed position of the tube body fixing seat 7. This elastic rubber strip provides cushioning when subjected to external pulling forces, preventing excessive tension on the fixed position of the venous puncture tube and further improving the anti-dislodgement effect of the venous puncture tube. Simultaneously, the bent tube body 1 allows for sufficient slack when the elastic telescopic connecting band 6 extends and retracts, moving with the tube body fixing seat 7, reducing the pulling force exerted on the puncture point by the connecting tube body 1 during the extension and retraction of the elastic telescopic connecting band 6.

[0026] The working principle and usage of this utility model are as follows: When using this device, the distal end of the connecting tube of the tube body 1 is fixed to the tube body fixing seat 7 via the suction cup base 2 and elastic tape. The proximal end of the tube body 1 near the puncture point is fixed to the suction cup base 2 with medical tape. The suction cup base 2 is adhered and fixed to the patient's skin by multiple suction cups 3 evenly distributed at its bottom, ensuring the puncture point is located at the center of the puncture operation port 10, facilitating the puncture operation. The biomimetic structure of the suction cups 3 adheres and fixes the device to the patient's skin, ensuring a secure fixation while effectively preventing adhesive residue from the dressing from causing adhesion. For patients experiencing skin discomfort, the elastic telescopic connecting strap 6 and the tube body fixing seat 7 are designed to reduce the stretching at the puncture point of the tube body 1 when the connecting catheter is subjected to external force. This prevents the puncture end of the venous puncture tube from slipping out. Except for the tube body 1, the entire part of this device can be repeatedly cleaned, disinfected, and reused. Through the combination of biomechanical optimization and external force buffering structure, the risk of emergency catheter dislodgement is systematically reduced without significantly increasing medical costs. It is especially suitable for the chaotic and busy work environment of the emergency department.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A type of anti-dislodgement venous puncture catheter, comprising a catheter body (1), characterized in that: It also includes a suction cup base (2), with multiple suction cups (3) evenly arranged at the lower part of the suction cup base (2). A puncture operation port (10) is opened at the center of the suction cup base (2). A fixed connecting seat (4), a proximal fixing strap (5), an elastic telescopic connecting strap (6) and a tube body fixing seat (7) are arranged in sequence at the upper part of the suction cup base (2). The tube body (1) can be connected to the tube body fixing seat (7) with medical tape.

2. The anti-dislodgement venous puncture catheter according to claim 1, characterized in that: The proximal fixing band (5) has a movable magnet block (9) fixedly connected to the bottom of one end near the elastic telescopic connecting band (6), and the suction cup base (2) has a fixed magnet block (11) embedded at the position corresponding to the movable magnet block (9), and the movable magnet block (9) and the fixed magnet block (11) attract each other.

3. The anti-dislodgement venous puncture catheter according to claim 2, characterized in that: A separation triggering mechanism is embedded at the bottom of the outer end of the near-end fixing band (5), and a separation alarm (12) is embedded in the fixing connection seat (4). The power line of the separation alarm (12) is electrically connected through the separation triggering mechanism.

4. The anti-dislodgement venous puncture catheter according to claim 3, characterized in that: The separation triggering mechanism includes two V-shaped energized contacts (8). The bottom of the outer end of the near-end fixing band (5) is provided with a square slot corresponding to the V-shaped energized contacts (8). The two V-shaped energized contacts (8) are respectively fixedly connected to the inner walls of the two sides of the square slot. The power line of the separation alarm (12) is disconnected in the middle, and the disconnected power line extends toward the side of the moving magnet (9) and is fixedly connected to the two V-shaped energized contacts (8). The two V-shaped energized contacts (8) are provided with inclined and opposite elastic contact copper sheets on opposite sides. An insulating plastic spacer (13) is embedded at the upper end of the tube (1) corresponding to the center position of the two V-shaped energized contacts (8). The upper end of the insulating plastic spacer (13) penetrates the top surface of the tube (1) and is inserted between the two V-shaped energized contacts (8).

5. The anti-dislodgement venous puncture catheter according to claim 1, characterized in that: The elastic telescopic connecting strip (6) is an elastic rubber strip, and the tube body (1) is bent between the puncture point and the fixed position of the tube body fixing seat (7).

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