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CN-121971728-A - Device and method for fixing cardiac great vessel anesthesia extracorporeal circulation pipeline

CN121971728ACN 121971728 ACN121971728 ACN 121971728ACN-121971728-A

Abstract

The invention relates to the field of medical appliances and discloses a fixing device and a method for an extracorporeal circulation pipeline of a cardiac great vessel anesthesia, wherein the device comprises a fixing part and an installation part, a pipe groove for accommodating the pipeline is formed in the fixing part, the installation part is fixed on the side of a bed through a clamping piece, a magnetic locking structure is arranged between the fixing part and the installation part and comprises a permanent magnet array embedded on the installation part and an iron plate embedded on the fixing part, stable fixing in a normal state is realized through magnetic attraction, an emergency unhooking structure is arranged on the side of the bed and used for realizing quick detachment, an angle adjusting structure is arranged between the fixing part and the pipe groove and comprises a ball head rod, a ball head seat, a locking block and an elastic piece, and the locking block is driven to wedge a ball head through the gravity action of the pipeline so as to realize automatic locking of angles. The invention realizes the high stability and the one-hand operation of angle adjustment of the pipeline fixation, has the emergency quick separation function, and remarkably improves the safety and convenience of clinical use.

Inventors

  • ZHANG HUI
  • ZHU YANGLIN
  • GUAN JINPING
  • ZHONG TINGTING

Assignees

  • 连云港市第二人民医院(连云港市临床肿瘤研究所)

Dates

Publication Date
20260505
Application Date
20260325

Claims (9)

  1. 1. The fixing device for the extracorporeal circulation pipeline of the cardiac great vessel anesthesia comprises a fixing part which is adapted to a pipeline, and is characterized in that a through pipe groove is formed in the fixing part, a limiting part is arranged in a notch of the pipe groove, an installation part is arranged at the bottom of the fixing part, and a magnetic locking structure is arranged between the installation part and the fixing part and used for realizing the adsorption fixation of the fixing part and the installation part in a normal state; the installation department passes through the holder to be fixed on the bed side, still is provided with urgent unhook structure on the bed side for realize breaking away from fast between installation department and the fixed part.
  2. 2. The cardiac great vessel anesthesia extracorporeal circulation pipeline fixing device according to claim 1, wherein the magnetic locking structure comprises a mother seat and a child seat, the mother seat is fixedly arranged on the side surface of the installation part, the child seat is fixedly arranged on the side surface of the fixing part opposite to the installation part, the mother seat is embedded with a permanent magnet array, and the child seat is embedded with an iron plate; guide pins are fixedly arranged on the side surfaces of the mounting parts and positioned at the periphery of the female seat, and guide holes are correspondingly arranged on the side surfaces of the fixing parts.
  3. 3. The fixing device for the extracorporeal circulation pipeline of cardiac great vessel anesthesia according to claim 2, wherein the female seat is provided with a concave structure, the permanent magnets are distributed in a rectangular array along the surface of the female seat, the sub seat is provided with a convex structure, and the iron plates are correspondingly provided with hollow rectangular structures.
  4. 4. The device for fixing the extracorporeal circulation pipeline of the cardiac great vessel anesthesia according to claim 3, wherein the emergency unhooking structure comprises a pedal, a mounting frame is fixedly arranged at the bottom of the bed, the pedal is hinged on the mounting frame through a torsion spring, one end of the pedal is connected with a magnetism isolating plate through a connecting piece, and the other end of the pedal is in contact with the ground; when the pedal is stepped down to swing, the magnetism isolating plate is driven to enter between the sub-seat and the main seat from the initial position so as to block a magnetic circuit between the sub-seat and the main seat.
  5. 5. The cardiac macrovascular anesthesia extracorporeal circulation pipeline fixing device according to claim 1 or 4, wherein an angle adjusting structure is provided between the fixing part and the tube groove, the angle adjusting structure being used for adjusting the angle of the tube groove.
  6. 6. The cardiac great vessel anesthesia extracorporeal circulation pipeline fixing device according to claim 5, wherein the angle adjusting structure comprises a ball head rod and a ball head seat, wherein the end part of the ball head rod is movably embedded in the ball head seat, the other end of the ball head rod is fixedly arranged on the side surface of the tube slot, and the ball head seat is fixedly arranged on the side surface of the fixing part; an auxiliary component is arranged in the ball seat, and the auxiliary component realizes locking after angle adjustment under the gravity action of the pipeline.
  7. 7. The cardiac macrovascular anesthesia extracorporeal circulation circuit fixing device of claim 6, wherein the auxiliary assembly comprises a locking block and an elastic member which are arranged in the bulb holder, the locking block being in contact with the bulb surface of the bulb rod; when the gravity of the pipeline acts on the head rod, the locking block wedges the ball head under the combined action of the gravity and the elastic piece, so that the angle locking is realized; The locking block is an arc-shaped block, the inner cambered surface of the locking block is matched with the surface of the ball head, and the outer cambered surface is in sliding fit with the inner wall of the guide groove; The ball seat inner wall is provided with a guide groove, the locking block is embedded in the guide groove and can slide along the guide groove, and the elastic piece is a pressure spring and is arranged between the locking block and the bottom of the guide groove.
  8. 8. The fixing device for the extracorporeal circulation pipeline of cardiac great vessel anesthesia according to claim 7, wherein each locking block is connected with an unlocking deflector rod, and a through groove is formed in the ball seat for the unlocking deflector rod to move; The middle part of the unlocking deflector rod is hinged in the through groove, and the other end of the unlocking deflector rod extends to a moving path of a baffle plate arranged on the magnetism isolating plate; When the magnetism isolating plate moves between the sub-seat and the mother seat, the unlocking deflector rod is pushed to drive the locking block to slide in a direction away from the ball head against the force of the elastic piece, and the ball head is released.
  9. 9. A method for fixing a cardiac macrovascular anesthesia extracorporeal circulation pipeline, which is suitable for the cardiac macrovascular anesthesia extracorporeal circulation pipeline fixing device as claimed in any one of claims 1 to 8, and is characterized by comprising the following steps: step one, fixing an installation part on the bed side through a clamping piece, and enabling a permanent magnet array on a mother seat to be in an activated state; Secondly, enabling the fixing part to be close to the mounting part, realizing accurate alignment through the matching of the guide pin and the guide hole, enabling the iron plate on the sub-base to be attracted with the permanent magnet array on the parent base, and completing magnetic locking of the fixing part and the mounting part; And thirdly, placing the pipeline into a pipe groove of the fixing part, supporting the pipeline by hands to counteract the action of gravity, wherein the locking block in the ball seat is in a protruding position under the action of the elastic piece, the ball head can rotate freely, loosening hands after adjusting to a required angle, and enabling the gravity of the pipeline to act on the ball head rod to enable the locking block to slide towards the inside of the ball seat along the guide groove, so that positive pressure between the locking block and the ball head is gradually increased to form a wedging effect, and automatic locking of the angle is realized.

Description

Device and method for fixing cardiac great vessel anesthesia extracorporeal circulation pipeline Technical Field The invention relates to the field of medical appliances, in particular to a device and a method for fixing an extracorporeal circulation pipeline of cardiac macrovascular anesthesia. Background In the operation of the great vessels of the heart, extracorporeal circulation needs to be established, and an extracorporeal circulation machine temporarily replaces the heart-lung function. At this time, an arteriovenous circuit (aortic cannula, vena cava cannula, etc.) connecting a patient's blood vessel with an extracorporeal circulation machine is of great importance. The anesthesiologist is responsible for managing the vital signs of the patient in the whole process during the operation, and also takes on the role of protecting and managing the thick pipelines, so as to ensure that the anesthesiologist is positioned correctly and is not pulled. At present, a clamping type fixing device is used for fixing a pipeline on a guide rail of an operating table clinically. However, existing fixtures also suffer from a number of drawbacks in use: First, the extracorporeal circulation line is filled with blood, the weight is large, and factors such as body position fine adjustment of a patient in operation and operation traction can generate unexpected acting force on the line. The existing device mostly adopts a friction locking mode, and when the existing device is subjected to larger or sudden traction force, the risk of pipeline displacement or even cannula falling out exists. Secondly, the pipeline angle needs to be finely adjusted according to the body position of a patient and the operation requirement, bending and other conditions are prevented, the pipeline is required to be supported in many cases, the knob is screwed in one hand, and the knob is required to be loosened again after the pipeline is locked, so that the operation is complicated. Based on this, there is a need to provide an improved fixing device for improving the resistance to traction while simplifying the adjustment operation. Disclosure of Invention The invention aims to provide a device and a method for fixing an extracorporeal circulation pipeline of cardiac great vessel anesthesia, which solve the technical problems of complicated angle operation and/or danger caused by accidental traction. The aim of the invention can be achieved by the following technical scheme: The fixing device comprises a fixing part which is adapted to a pipeline, wherein a through pipe groove is formed in the fixing part, a limiting part is arranged in a notch of the pipe groove, an installation part is arranged at the bottom of the fixing part, and a magnetic locking structure is arranged between the installation part and the fixing part and used for realizing the adsorption fixation of the fixing part and the installation part in a normal state; the installation department passes through the holder to be fixed on the bed side, still is provided with urgent unhook structure on the bed side for realize breaking away from fast between installation department and the fixed part. Further, the magnetic locking structure comprises a mother seat and a child seat, wherein the mother seat is fixedly arranged on the side surface of the installation part, the child seat is fixedly arranged on the side surface of the fixing part opposite to the installation part, the mother seat is embedded with a permanent magnet array, and the child seat is embedded with an iron plate; guide pins are fixedly arranged on the side surfaces of the mounting parts and positioned at the periphery of the female seat, and guide holes are correspondingly arranged on the side surfaces of the fixing parts. Further, the female seat is arranged to be of a concave structure, the permanent magnets are distributed in a rectangular array along the surface of the female seat, the sub-seats are arranged to be of a convex structure, and the iron plates are correspondingly arranged to be of a hollow rectangular structure. The emergency unhooking structure comprises a pedal, wherein the bed bottom is fixedly provided with a mounting frame, the pedal is hinged on the mounting frame through a torsion spring, one end of the pedal is connected with the magnetic isolation plate through a connecting piece, and the other end of the pedal is in contact with the ground; when the pedal is stepped down to swing, the magnetism isolating plate is driven to enter between the sub-seat and the main seat from the initial position so as to block a magnetic circuit between the sub-seat and the main seat. Further, an angle adjusting structure is arranged between the fixing part and the pipe groove and is used for adjusting the angle of the pipe groove. Further, the angle adjusting structure comprises a ball head rod and a ball head seat, the end part of the ball head rod is movably embedded in the ball head seat, the other