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CN-224207176-U - PICC pipe prevents back blood monitoring devices

CN224207176UCN 224207176 UCN224207176 UCN 224207176UCN-224207176-U

Abstract

The application discloses a PICC catheter blood return prevention monitoring device, and belongs to the technical field of PICC catheters. Including blocking the pipe, block pipe both ends fixedly connected with injection connecting pipe and pipe connecting pipe respectively, the injection connecting pipe is used for connecting the syringe, the pipe connecting pipe is used for connecting vein catheterization pipe, it is provided with the check valve structure to block the inside of pipe, when vein catheterization pipe has the back blood, possess reverse pressure in the pipe, because of second spring resistance promotes the blocking ball and seals the injection connecting pipe and handle, form injection unidirectional conduction, and back blood blocking effect, and because of the back blood time, the reverse pressure in the pipe makes the piston block extrude first spring along L shape intracavity, and force the push rod to push the resistance block along the resistance piece displacement, make two cable electric connection resistance piece's actual length reduce, make the resistance monitor vein catheterization pipe back blood phenomenon, in time send back blood warning command, in time remind medical personnel to handle back blood phenomenon.

Inventors

  • ZHAO XIAOFEI

Assignees

  • 沈阳市肛肠医院

Dates

Publication Date
20260508
Application Date
20250210

Claims (5)

  1. The PICC catheter blood return prevention monitoring device is characterized by comprising a blocking catheter (1), wherein an injection connecting pipe (2) and a catheter connecting pipe (3) are fixedly connected to two ends of the blocking catheter (1) respectively, the injection connecting pipe (2) is used for connecting an injector, the catheter connecting pipe (3) is used for connecting a vein catheterization catheter, a one-way valve structure is arranged in the blocking catheter (1), the one-way valve structure comprises a blocking ball (6) and a second spring (7), an arc-shaped block (4) is fixedly arranged on the blocking catheter (1), an L-shaped cavity (41) and a sliding cavity (42) are arranged in the arc-shaped block (4), a monitoring mechanism (5) is arranged in the arc-shaped block (4), the monitoring mechanism (5) comprises two cables (55), the cables (55) are respectively and electrically connected with a resistor disc (56) and a resistor disc (54), the resistor disc (56) is fixedly arranged in the sliding cavity (42), the resistor disc (54) is slidingly arranged in the sliding cavity (42) and is attached to the resistor disc (56) and is fixedly connected with a piston rod (51) which is fixedly arranged at the end part of the piston rod (51), the L-shaped cavity (41) is communicated with the catheter connecting pipe (3).
  2. 2. The PICC catheter blood return prevention monitoring device of claim 1, wherein a conical large cavity (11) and a small cavity (12) are arranged in the occlusion catheter (1), and the occlusion ball (6) and the second spring (7) are arranged in the conical large cavity (11).
  3. 3. The PICC catheter blood return prevention monitoring device of claim 2, wherein the end surface of the small cavity (12) connected with the catheter connecting pipe (3) is a conical surface, and one end of the L-shaped cavity (41) is arranged at the end surface of the small cavity (12) connected with the catheter connecting pipe (3).
  4. 4. The PICC catheter anti-flashback monitoring device of claim 1, wherein the push rod (53) movably penetrates through the L-shaped cavity (41) and extends into the sliding cavity (42), and the first spring (52) is arranged in the L-shaped cavity (41).
  5. 5. The PICC catheter blood return prevention monitoring device of claim 1, wherein the cable (55) extends to the outside of the arc-shaped block (4) and is electrically connected to an on-line monitor of a grounding resistor, and the MC-04 is selected as the equipment model.

Description

PICC pipe prevents back blood monitoring devices Technical Field The application relates to the technical field of PICC catheters, in particular to a PICC catheter blood return prevention monitoring device. Background PICC catheterization generally refers to central venous catheterization through peripheral venipuncture, and is a commonly used intravenous catheter insertion method, and the main functions of the PICC catheterization are to protect blood vessels, establish venous access, reduce pain, reduce infection risk and the like, and blood return in an infusion catheter of the PICC catheterization generally cannot cause any damage to a patient, but can promote bacterial growth and increase the risk of blood clots or infection, if blood return in the catheter is found, whether blood clots are detected when the blood return is detected, and medical treatment such as catheter flushing is performed timely, and whether blood return is detected in the catheter is detected, a caretaker is usually required to visually check at intervals, and the blood return cannot be found timely. Disclosure of utility model 1. Technical problem to be solved The application aims to provide a PICC catheter blood return prevention monitoring device, which solves the technical problems in the background technology, achieves the technical effects that when a venous catheter has blood return, the catheter is internally provided with reverse pressure, the blocking ball is pushed by the resistance of a second spring to seal an injection connecting pipe for treatment, so that the injection is conducted in a single direction, the blood return blocking effect is achieved, and when blood returns, the reverse pressure in the catheter enables a piston block to squeeze a first spring along an L-shaped cavity and forces a push rod to push the resistance block to displace along a resistor plate, so that the actual length of the two cables electrically connected with the resistor plate is reduced, the resistor monitor monitors the blood return phenomenon of the venous catheter, and timely sends a blood return alarm command to prompt medical staff to treat the blood return phenomenon. 2. Technical proposal The technical scheme of the application provides a PICC catheter blood return prevention monitoring device, which comprises a blocking catheter, wherein two ends of the blocking catheter are respectively and fixedly connected with an injection connecting pipe and a catheter connecting pipe, the injection connecting pipe is used for connecting an injector, the catheter connecting pipe is used for connecting a venous catheterization catheter, a one-way valve structure is arranged in the blocking catheter and comprises a blocking ball and a second spring, an arc block is fixedly arranged on the blocking catheter, an L-shaped cavity and a sliding cavity are arranged in the arc block, a monitoring mechanism is arranged in the arc block, the monitoring mechanism comprises two cables, the cables are respectively and electrically connected with a resistor disc and a resistor block, the resistor disc is fixedly arranged in the sliding cavity, the resistor block is slidably arranged in the sliding cavity and is in fit connection with the resistor disc, the resistor block is fixedly connected with a push rod, a first spring is sleeved outside the push rod, the end part of the push rod is fixedly connected with a piston block, the piston block is slidably arranged in the L-shaped cavity, and the L-shaped cavity is communicated with the catheter. Through adopting above-mentioned technical scheme, this block pipe both ends fixedly connected with injection connecting pipe and pipe connecting pipe respectively, be used for connecting vein catheterization pipe through the pipe connecting pipe and use, block the inside check valve structure that constitutes by blocking ball and second spring through setting up of pipe, can make syringe connection injection connecting pipe be used for intravenous infusion treatment to use, realize simultaneously vein catheterization pipe and prevent back blood purpose, when vein catheterization pipe has back blood phenomenon, pipe connecting pipe department receives reverse pressure, the piston block in the L shape intracavity forces first spring elastic deformation, and slide along smooth intracavity through push rod push resistance block, make the actual length of two cable electric connection's resistance disc reduce, thereby cable connection's resistance monitor can monitor vein catheterization pipe back blood phenomenon, in time send back blood alarm command, in time remind medical personnel to handle back blood phenomenon. Optionally, a conical large cavity and a small cavity are arranged in the blocking catheter, and the blocking ball and the second spring are arranged in the conical large cavity. Through adopting above-mentioned technical scheme, the second spring is greater than the setting of little chamber to the sec