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CN-116440364-B - Gas flow speed adjusting device for noninvasive ventilator

CN116440364BCN 116440364 BCN116440364 BCN 116440364BCN-116440364-B

Abstract

The invention relates to a gas flow rate adjusting device for a noninvasive ventilator, which comprises an oxygen storage tube, wherein a fixing mechanism is arranged above the oxygen storage tube, an adjusting mechanism is arranged inside the oxygen storage tube, a plugging mechanism is arranged inside the oxygen storage tube, a partition plate is fixed on the lower surface of the oxygen storage tube through bolts, a gas filtering device body is fixed on the upper surface of the partition plate, a noninvasive ventilator body is arranged on the left side of the oxygen storage tube, an oxygen transmission tube is communicated with the front surface of the noninvasive ventilator body, and a transmission tube is arranged above the oxygen storage tube. This a gaseous velocity of flow adjusting device for noninvasive ventilator through the diapire laminating with fixed pipe and mount pad inner chamber, rotates the first screw rod of left and right sides and rotates of left and right sides knob drive, makes two movable plate lower fixed surface's arc rubber pad promote two butt boards downwards for laminating between fixed pipe and the mount pad is inseparabler, has reached the purpose that makes sealed effect better.

Inventors

  • BAI YING
  • MO GUOXIN
  • YUAN XIANGJUAN

Assignees

  • 中国人民解放军总医院第八医学中心

Dates

Publication Date
20260505
Application Date
20230309

Claims (10)

  1. 1. The gas flow rate adjusting device for the noninvasive ventilator comprises an oxygen storage tube (1) and is characterized in that a fixing mechanism (2) is arranged above the oxygen storage tube (1), an adjusting mechanism (4) is arranged inside the oxygen storage tube (1), a blocking mechanism (7) is arranged inside the oxygen storage tube (1), a partition plate (3) is fixed on the lower surface of the oxygen storage tube (1) through bolts, a gas filtering device body (5) is fixed on the upper surface of the partition plate (3), a noninvasive ventilator body (6) is arranged on the left side of the oxygen storage tube (1), an oxygen delivery tube (8) is communicated with the front side of the noninvasive ventilator body (6), and a transmission tube (9) is arranged above the oxygen storage tube (1); The fixing mechanism (2) comprises a mounting seat (201) fixed on the upper surface of the oxygen storage tube (1), a fixing tube (202) is movably attached to the bottom wall of the inner cavity of the mounting seat (201), positioning blocks (203) are fixed on the left side and the right side of the fixing tube (202), two positioning rods (204) are vertically fixed on the bottom wall of the inner cavity of the mounting seat (201), abutting plates (205) are fixed on the left side and the right side of the fixing tube (202) and above the two positioning blocks (203), fixing blocks (206) are fixed on the left side and the right side of the mounting seat (201), first screw rods (207) are connected to the lower surface of the two fixing blocks (206) through bearings in a rotating mode, connecting blocks (209) are connected to the outer sides of the two first screw rods (207) in a threaded mode, sliding blocks (210) are fixed on opposite sides of the two connecting blocks (209), sliding plates (212) are fixed on opposite sides of the two sliding blocks (210) through hinging shafts, and the two sliding plates (212) are connected to the outer sides of the two sliding plates (212); The regulating mechanism (4) comprises a worm (401) which is rotationally connected to the upper surface of the oxygen storage tube (1) and is close to the left side of the oxygen storage tube through a bearing, a turbine (402) is meshed with the back side of the worm (401), a connecting rod (403) is fixed in the turbine (402), the right end of the connecting rod (403) penetrates through the left side of the oxygen storage tube (1) and extends to the inside of the oxygen storage tube (1) and is fixed with a second screw (404), and a second movable sleeve (405) is connected to the outer side of the second screw (404) in a threaded mode; The plugging mechanism (7) comprises two fixing sleeves (701) fixed on the left side wall of an inner cavity of the oxygen storage tube (1), the two fixing sleeves (701) are respectively and slidably connected with a mounting sleeve (702), springs (703) are respectively and fixedly arranged on the left side wall of the inner cavity of the mounting sleeve (702), mounting plates (704) are respectively and fixedly arranged on the right sides of the mounting sleeves (702), and baffles (705) are respectively and fixedly arranged between the opposite sides of the mounting plates (704).
  2. 2. The gas flow rate adjusting device for a noninvasive ventilator according to claim 1, wherein the two hinge rods (211) are hinged to the upper surfaces of the two movable plates (213) through hinge shafts, respectively, and arc-shaped rubber blocks are fixed on the lower surfaces of the two movable plates (213).
  3. 3. The device for regulating the flow rate of gas for a noninvasive ventilator according to claim 1, wherein the lower surfaces of the two positioning blocks (203) are respectively provided with a positioning groove in sliding connection with a positioning rod (204), and a sealing ring is fixed on the lower surface of the fixed tube (202).
  4. 4. A gas flow rate regulating device for a noninvasive ventilator according to claim 1, wherein the tips of the two first screws (207) penetrate the lower surface of the fixed block (206) and extend above the fixed block (206) and are fixed with knobs.
  5. 5. The device for regulating the flow rate of gas for a noninvasive ventilator of claim 1, wherein the delivery tube (9) is fixed to the top end of the fixed tube (202), and the left and right side walls of the inner cavity of the mounting seat (201) are respectively fixed with a slideway in sliding connection with the sliding block (210).
  6. 6. The gas flow rate adjusting device for the noninvasive ventilator of claim 1, wherein the upper surface of the oxygen storage tube (1) is provided with a circulation port, and the left side and the right side of the mounting seat (201) are provided with connecting grooves which are in sliding connection with the connecting blocks (209).
  7. 7. The device for regulating the flow rate of gas for a noninvasive ventilator according to claim 1, wherein the front side and the rear side of the second movable sleeve (405) are respectively in sealing fit with the front side wall and the rear side wall of the inner cavity of the oxygen storage tube (1), and a handle is fixed at the top end of the worm (401).
  8. 8. The device for adjusting the gas flow rate of the noninvasive ventilator of claim 1, wherein two sliding rods are fixed between the left side wall and the right side wall of the inner cavity of the oxygen storage tube (1), and movable blocks which are connected with the outer sides of the sliding rods in a sliding manner are fixed on the upper side and the lower side of the second movable sleeve (405).
  9. 9. The device for regulating the flow rate of gas for a noninvasive ventilator according to claim 1, wherein the two springs (703) are respectively fixed on the left side walls of the inner cavities of the two fixing sleeves (701), and the baffle plate (705) is in sealing fit on the right side of the oxygen therapy tube (8).
  10. 10. The gas flow rate adjusting device for the noninvasive ventilator of claim 1, wherein the top wall and the bottom wall of the inner cavities of the two fixing sleeves (701) are respectively provided with a mounting groove, and the upper side and the lower side of the two mounting sleeves (702) are respectively fixedly provided with a mounting block which is in sliding connection with the mounting grooves.

Description

Gas flow speed adjusting device for noninvasive ventilator Technical Field The invention relates to the technical field of noninvasive ventilators, in particular to a gas flow speed adjusting device for a noninvasive ventilator. Background The noninvasive ventilator is also called noninvasive positive pressure ventilation, is clinically used for treating sleep apnea syndrome and related diseases, is used as an effective means capable of manually replacing autonomous ventilation function in modern clinical medicine, is widely used for respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support treatment and emergency resuscitation, occupies very important positions in the field of modern medicine, and is a vital medical device capable of preventing and treating respiratory failure, reducing complications and saving and prolonging lives of patients. An example chinese patent CN 109157723B discloses a connection device for a ventilator and an oxygen connection pipe in a noninvasive ventilator, which comprises a ventilator, the upper surface of the ventilator is fixedly connected with a supporting leg and an oxygen storage box respectively, an oxygen inlet device and an oxygen outlet device are arranged in the oxygen storage box respectively, the oxygen inlet device comprises an oxygen inlet pipe, and the oxygen outlet device comprises an oxygen outlet pipe. When the connecting device of the breathing machine and the oxygen connecting pipe in the noninvasive breathing machine is used, medical staff makes the adjusting rod outwards move through the rotating pull buckle, makes the clamping block outwards move under the pressure of the pressure spring, at the moment, the medical staff can drive the adjusting rod to inwards extrude the clamping block through the oxygen connecting pipe which is sleeved on the fixed block, the surface of the clamping block extrudes the oxygen connecting pipe to fix the oxygen connecting pipe, and the second sealing ring is extruded through the inner wall of the oxygen connecting pipe, so that the sealing effect is achieved, the installation is convenient, the sealing performance is strong, and the oxygen leakage is avoided. The connecting device of the breathing machine and the oxygen connecting pipe in the noninvasive breathing machine has certain defects, for example, although the clamping device is arranged on the upper surface of the bottom plate and comprises the fixing block, the bottom of the fixing block is fixedly connected with the upper surface of the bottom plate, so that the effects of convenient installation and strong sealing performance are achieved, oxygen leakage is avoided, the left side and the right side of the connecting device are required to be rotated when the connecting device is clamped, the situation that the clamped oxygen connecting pipe is offset due to manual operation can be caused, and the sealing effect of the oxygen connecting pipe is poor can be caused. Disclosure of Invention Aiming at the defects of the prior art, the invention provides the gas flow rate adjusting device for the noninvasive ventilator, which has the advantage of good sealing performance and solves the problem that the sealing effect of an oxygen connecting pipe is poor. The technical scheme includes that the gas flow rate adjusting device for the noninvasive ventilator comprises an oxygen storage tube, wherein a fixing mechanism is arranged above the oxygen storage tube, an adjusting mechanism is arranged inside the oxygen storage tube, a plugging mechanism is arranged inside the oxygen storage tube, a partition plate is fixed on the lower surface of the oxygen storage tube through bolts, a gas filtering device body is fixed on the upper surface of the partition plate, a noninvasive ventilator body is arranged on the left side of the oxygen storage tube, an oxygen delivery tube is communicated with the front surface of the noninvasive ventilator body, and a transmission tube is arranged above the oxygen storage tube; The fixing mechanism comprises a mounting seat fixed on the upper surface of the oxygen storage tube, the bottom wall of the inner cavity of the mounting seat is movably attached with the fixing tube, positioning blocks are fixed on the left side and the right side of the fixing tube, two positioning rods are vertically fixed on the bottom wall of the inner cavity of the mounting seat, abutting plates are fixed on the left side and the right side of the fixing tube and respectively positioned above the two positioning blocks, fixing blocks are fixed on the left side and the right side of the mounting seat, the lower surfaces of the two fixing blocks are respectively connected with a first screw rod through bearing rotation, the outer sides of the two fixing blocks are respectively and spirally connected with a first movable sleeve, the bottom ends of the two first movable sleeves are respectively and fix