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CN-121606757-B - Device for blocking airway of acute respiratory tract

CN121606757BCN 121606757 BCN121606757 BCN 121606757BCN-121606757-B

Abstract

The invention provides an acute respiratory obstruction airway unobstructed device, which belongs to the technical field of medical treatment and comprises a connecting suction pipe, a sputum suction head and a negative pressure suction mechanism, wherein the sputum suction head is arranged at an inserting end of the connecting suction pipe, the sputum suction head comprises a suction head front part and a suction head rear part, the suction head front part and the suction head rear part can move relatively along the axial direction, the suction head rear part is rotationally connected with the connecting suction pipe, the negative pressure suction mechanism is arranged at the far end of the inserting end of the connecting suction pipe, a suction hole is formed in the surface of the suction head rear part, an elastic membrane is arranged in the suction hole, the elastic membrane is internally provided with an annular double-layer structure, and the opening end of the elastic membrane is fixedly connected with the inner surface of the suction hole.

Inventors

  • CAO YANXIANG
  • LIU CHAOYANG
  • CHENG RUI

Assignees

  • 中国人民解放军总医院第二医学中心

Dates

Publication Date
20260508
Application Date
20251126

Claims (10)

  1. 1. The utility model provides an unobstructed device of acute respiratory tract obstruction air flue, includes connection straw and sputum suction head and negative pressure suction mechanism, its characterized in that, the sputum suction head sets up at connection straw insertion end, the sputum suction head includes suction head front portion and suction head rear portion, but suction head front portion and suction head rear portion axial relative movement, suction head rear portion and connection straw rotate, negative pressure suction mechanism sets up at connection straw insertion end distal end, suction hole has been seted up on suction head rear portion surface; The inside of the suction hole is provided with an elastic membrane, the inside of the elastic membrane is provided with an annular double-layer structure, the opening end of the elastic membrane is fixedly connected with the inner surface of the suction hole, the inside of the elastic membrane is provided with an aperture regulating mechanism, and the aperture regulating mechanism regulates the flow aperture of the suction hole by controlling the tension of the elastic membrane; The aperture regulating mechanism comprises a plurality of groups of sliding grooves formed in the rear portion of the suction head, the sliding grooves are arranged around the suction holes, connecting rods are arranged in the sliding grooves, one ends of the connecting rods are arranged to be T-shaped and slidably mounted in the sliding grooves, and the other ends of the connecting rods penetrate through the side wall of the rear portion of the suction head to the inside of the elastic membrane and are fixedly connected with the closed ends of the elastic membrane.
  2. 2. The device for blocking an airway with acute respiratory obstruction according to claim 1, wherein the front part and the rear part of the suction head are both cylindrical, one end of the front part of the suction head is closed, the other end of the suction head is open, both ends of the rear part of the suction head are both open, a connecting groove matched with the open end of the front part of the suction head is formed in one end of the rear part of the suction head, the open end of the front part of the suction head is in plug-in fit with the connecting groove, the other end of the rear part of the suction head is fixedly connected with a rotating part, a rotating guide groove is formed in the insertion end of the connecting suction pipe, the rotating part is rotatably arranged in the rotating guide groove, a rotating mechanism is arranged in the connecting suction pipe, and the rotating mechanism provides power for the rotation of the sputum suction head.
  3. 3. The device according to claim 2, wherein an air pressure compensation assembly is arranged in the chute for driving the connecting rod to move in the chute.
  4. 4. The device according to claim 3, wherein the air pressure compensation assembly comprises a first elastic bag and a second elastic bag, the first elastic bag is sleeved on the outer surface of the connecting rod, one end of the first elastic bag is fixedly connected with the end part of the T-shaped part of the connecting rod, the other end of the first elastic bag is fixedly connected with the inner surface of the sliding groove, the second elastic bag is positioned in the connecting groove, and the first elastic bag and the second elastic bag are communicated through a connecting pipe network.
  5. 5. The device of claim 4, wherein the second elastic balloon is in a saturated state and the first elastic balloon is in an elastically contracted state in a natural state.
  6. 6. The device for blocking an airway with acute respiratory obstruction according to claim 5, wherein supporting springs are arranged inside the sliding grooves, one ends of the supporting springs are fixedly connected with the connecting rods, and the other ends of the supporting springs are fixedly connected with the inner surfaces of the sliding grooves.
  7. 7. The device for blocking an airway in an acute respiratory tract according to claim 5, wherein the connection pipe network comprises an annular pipe, a connection branch pipe and a connection main pipe, the rear part of the suction head is internally provided with a mounting groove which is matched with the annular pipe, the connection branch pipe and the connection main pipe in advance, the annular pipe is arranged around the suction hole but is not overlapped with the sliding groove, the connection branch pipes are provided with a plurality of groups, the connection branch pipes are in one-to-one correspondence with the first elastic bags, the connection branch pipes are used for communicating the corresponding first elastic bags with the annular pipe, and the connection main pipe is used for communicating the annular pipe with the second elastic bags.
  8. 8. The device for blocking an airway in an acute respiratory tract according to claim 5, wherein the rotating mechanism comprises a connecting plate, a cylinder, a screw rod and a driving piece, the connecting plate is fixedly installed in the middle of one end of the cylinder, the cylinder and the rear part of the suction head are coaxially arranged, one end of the cylinder protrudes and is fixedly connected with the inner surface of the connecting suction pipe, the other end of the cylinder is in contact with the connecting plate but is not connected with the connecting plate, the screw rod is rotatably connected in the cylinder, one end of the screw rod penetrates through the cylinder and is fixedly connected with the connecting plate, the ball seat matched with the screw rod is sleeved on the outer surface of the screw rod, the ball seat is rectangular, the inside of the cylinder is provided with a groove body matched with the ball seat, and the driving piece is used for driving the ball seat to move back and forth along the screw rod.
  9. 9. The device according to claim 8, wherein the driving member comprises a connecting spring, an air pipe, a telescopic bag and a balloon, the telescopic bag is arranged in a ring shape and sleeved outside the screw rod, one end of the telescopic bag is fixedly connected with the ball seat, the other end of the telescopic bag is fixedly connected with the inner surface of the cylinder body, the air pipe is arranged inside the connecting suction pipe, one end of the air pipe penetrates through the cylinder body and is communicated with the telescopic bag, the other end of the air pipe is positioned outside the air pipe and is provided with the balloon, the connecting spring is sleeved on the outer surface of the screw rod, one end of the connecting spring is fixedly connected with the ball seat, and the other end of the connecting spring is fixedly connected with the inner surface of the cylinder body.
  10. 10. The device of claim 1, wherein the negative pressure suction mechanism comprises a canister, a negative pressure tube, and a negative pressure connector, the canister is connected to the connection suction tube via the negative pressure tube, and the canister is connected to an external negative pressure source via the negative pressure connector.

Description

Device for blocking airway of acute respiratory tract Technical Field The invention relates to the technical field of medical treatment, in particular to an airway obstruction device for acute respiratory tract obstruction. Background Clinically, acute respiratory obstruction is a common but life threatening emergency, and is commonly found in a variety of clinical situations such as severe coma, post-anesthesia, cardiopulmonary resuscitation, and acute onset of Chronic Obstructive Pulmonary Disease (COPD). When the patient is blocked by respiratory tract due to disturbance of consciousness, myasthenia of breathing, increased airway secretion and the like, effective measures must be taken in time to clear the airway endocrine so as to recover and maintain the normal gas exchange function. At present, the negative pressure suction device is the most commonly used means for clearing airway secretion in clinic and is widely applied to operations such as sputum aspiration, airway cleaning and the like. The existing airway obstruction device mostly adopts a negative pressure suction principle, and sputum, blood or other secretion in the airway is sucked out through a sputum suction tube. Negative pressure aspiration systems typically include a source of negative pressure (e.g., an electric aspirator or a central negative pressure system), a connecting conduit, a sputum aspirator tube, and a collection bottle. In the operation process, although an operator can adjust the negative pressure source according to the airway condition of a patient, the negative pressure source can generate stable negative pressure with proper size, secretion is sucked into the lumen through the suction hole at the front end of the sputum suction tube and finally collected into the collecting bottle, so that airway cleaning is realized. However, in the sputum sucking process, partial blockage is easily formed at the suction hole due to higher viscosity of the sputum, so that the effective suction hole area is reduced. After the suction hole is narrowed, the negative pressure intensity on the unit area is increased, so that the adsorption force of the suction hole to the airway wall is obviously enhanced, the airway mucosa is easily adsorbed, pulled and even damaged, local bleeding or inflammatory reaction is caused, and even airway spasm or further stenosis is caused, thereby endangering the life safety of a patient, and an acute airway obstruction device is provided. Disclosure of Invention Aiming at the problem of airway wall adsorption caused by pressure change of a suction hole due to accumulation of sputum in the sputum suction process of the airway obstruction device in the prior art, the invention aims to provide the airway obstruction device for acute respiratory tract obstruction. In order to solve the problems, the invention adopts the following technical scheme: The utility model provides an unobstructed device of acute respiratory tract obstruction air flue, includes connection straw and sputum suction head and negative pressure suction mechanism, the sputum suction head sets up at connection straw insertion end, the sputum suction head includes suction head front portion and suction head rear portion, but suction head front portion and suction head rear portion axial relative movement, suction head rear portion and connection straw rotate and be connected, negative pressure suction mechanism sets up at connection straw insertion end distal end, suction hole has been seted up on suction head rear portion surface; The inside elastic membrane that is provided with of hole is inhaled, the inside annular bilayer structure that sets up of elastic membrane just the open end and the hole internal surface fixed connection that inhale of elastic membrane, the inside aperture regulation and control mechanism that is provided with of elastic membrane, aperture regulation and control mechanism is through controlling the elastic membrane rate of tension and is adjusted and inhale hole circulation aperture size. Optionally, tip front portion and tip rear portion all set up to cylindrically, tip front portion one end sets up to seal the form, and the other end sets up to the opening form, tip rear portion both ends all set up to the opening form, tip rear portion one end inside seted up with tip front portion open end matched with spread groove, tip front portion open end and spread groove grafting cooperation, tip rear portion other end fixedly connected with rotating part, the rotatory guide slot has been seted up to the inside of connecting straw insertion end, rotating part rotates and installs inside rotatory guide slot, the inside rotary mechanism that is provided with of connecting straw, rotary mechanism provides power for the sputum suction head rotates. Optionally, aperture regulation and control mechanism is including seting up at the inside multiunit spout in suction head rear portion, the spout encircles the suction hole setti