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CN-224220526-U - Liquid medicine atomizing component

CN224220526UCN 224220526 UCN224220526 UCN 224220526UCN-224220526-U

Abstract

The utility model discloses a liquid medicine atomizing component which comprises a shell, a pressure air pipe, a liquid flow channel, a stop component and a liquid flow channel, wherein the shell is used for limiting a containing cavity for containing liquid medicine, the pressure air pipe stretches into the containing cavity from the lower end of the shell, a shrinkage air outlet is formed in the upper end of the pressure air pipe, the liquid flow channel is provided with a liquid inlet positioned at the bottom of the containing cavity and a liquid outlet positioned at one side of the shrinkage air outlet, the liquid medicine flows in from the liquid inlet of the liquid flow channel and flows out from the liquid outlet and moves upwards along with air flow, the stop component is positioned above the shrinkage air outlet and opposite to the shrinkage air outlet, the stop component atomizes the liquid medicine along with the air flow through stop, a submerged groove extending downwards axially is arranged at the bottom of the containing cavity, and the liquid inlet of the liquid flow channel extends into the submerged groove.

Inventors

  • SUN DANYANG
  • HOU XUE
  • JI QIN

Assignees

  • 中国人民解放军总医院第一医学中心

Dates

Publication Date
20260512
Application Date
20250402

Claims (10)

  1. 1. A medical fluid atomizing member, comprising: A housing having an upper end and a lower end in an axial direction, the housing defining a cavity between the upper end and the lower end for receiving a medical fluid; The pressure air pipe extends into the accommodating cavity from the lower end of the shell, and a shrinkage air outlet hole is formed at the upper end of the pressure air pipe; The liquid flow passage axially extends from the bottom of the containing cavity to the axial position where the shrinkage air outlet is located, so that the liquid flow passage is provided with a liquid inlet at the bottom of the containing cavity and a liquid outlet at one side of the shrinkage air outlet, and under the action of air flow flowing out of the shrinkage air outlet, liquid medicine flows in from the liquid inlet of the liquid flow passage and flows out of the liquid outlet and moves upwards along with the air flow; a stop member disposed above the shrinkage air outlet and opposite to the shrinkage air outlet, the stop member atomizing the liquid medicine by stopping the liquid medicine flowing along with the air flow, wherein The bottom of the containing cavity is provided with a sinking groove extending downwards in the axial direction, and the liquid inlet of the liquid flow channel extends into the sinking groove.
  2. 2. The medical fluid atomizing member according to claim 1, wherein said sink is an annular groove surrounding said pressure gas pipe.
  3. 3. The medical fluid atomizing member according to claim 2, further comprising a guide sleeve, wherein: the guide sleeve is sleeved outside the pressure air pipe and is used for limiting an annular flow passage with the pressure air pipe, the annular flow passage is formed into the liquid flow passage, the lower end of the guide sleeve stretches into the sinking groove, the lower port and the upper port of the guide sleeve and the pressure air pipe are respectively used for limiting the liquid inlet and the liquid outlet, and an annular gap is formed between the lower end of the guide sleeve and the groove wall of the sinking groove.
  4. 4. A medical fluid atomizing member according to claim 3, wherein the upper port of the guide sleeve is provided with a guide slope for guiding the medical fluid to flow obliquely inward in the radial direction.
  5. 5. A liquid medicine atomizing member according to claim 3, wherein a plurality of circumferentially arranged notches are provided in an end wall of the lower end of the guide sleeve, and the lower end of the guide sleeve abuts against a bottom of the sinking groove.
  6. 6. The medical fluid atomizing member according to claim 1, wherein said housing defines an ellipsoidal cavity, and wherein a long axis of said cavity is axial.
  7. 7. The liquid medicine atomizing member according to claim 1, wherein the stopper member is arranged in a flat columnar shape, and a lower end surface of the stopper member is arranged in a tapered surface having a downward convex middle portion.
  8. 8. The liquid medicine atomizing member according to claim 7, wherein the stopper member has a lower end surface provided with a plurality of ribs extending radially and circumferentially.
  9. 9. The medical fluid atomizing member according to claim 1, wherein a lower end of said pressure air tube axially extends out of said housing for communication with a hose of an air supply system.
  10. 10. The liquid medicine atomizing member according to claim 1, wherein the stopper member is fixed to a holding portion formed extending axially from a top of the cavity.

Description

Liquid medicine atomizing component Technical Field The utility model relates to the field of medical instruments, in particular to a liquid medicine atomizing component. Background An atomizer typically used for atomizing a liquid medicine (liquid medicine) generally includes a container defined by a housing for containing the liquid medicine, a pressure gas pipe axially extending into the container and forming a constricted outlet at an end portion, an end portion of the pressure gas pipe axially extending from a bottom portion of the container and forming a liquid inlet at the bottom portion of the container, a liquid flow passage forming a liquid outlet at one side of the constricted outlet, and a stopper member located axially forward of the constricted outlet. In use, the pressure gas in the pressure gas pipe is ejected from the shrinkage gas outlet hole at a high speed, and according to the Bernoulli principle, the pressure near the front of the shrinkage gas outlet hole is reduced, so that the liquid medicine in the containing cavity enters the liquid flow channel from the liquid inlet of the liquid flow channel at the bottom of the containing cavity, then flows out from the gas outlet of the liquid flow channel at the side part of the shrinkage gas outlet, and the discharged liquid medicine impacts on the stop part along with the high-speed gas flow, so that at least part of the liquid medicine forms a large number of liquid drops with extremely small volume, and the liquid drops are macroscopically called mist. However, prior art atomizers have the following drawbacks when in use: when the liquid medicine in the containing cavity is remained to a certain amount, the smaller inclination angle (relative to the vertical state) of the atomizer only causes that the liquid inlet of at least part of the fluid flow channel is exposed outside the liquid medicine, so that the liquid medicine cannot be atomized, and the residual amount of the liquid medicine which cannot be atomized is larger. Disclosure of utility model Aiming at the technical problems in the prior art, the embodiment of the utility model provides a liquid medicine atomizing component. In order to solve the technical problems, the technical scheme adopted by the embodiment of the utility model is as follows: A medical fluid atomizing member comprising: A housing having an upper end and a lower end in an axial direction, the housing defining a cavity between the upper end and the lower end for receiving a medical fluid; The pressure air pipe extends into the accommodating cavity from the lower end of the shell, and a shrinkage air outlet hole is formed at the upper end of the pressure air pipe; The liquid flow passage axially extends from the bottom of the containing cavity to the axial position where the shrinkage air outlet is located, so that the liquid flow passage is provided with a liquid inlet at the bottom of the containing cavity and a liquid outlet at one side of the shrinkage air outlet, and under the action of air flow flowing out of the shrinkage air outlet, liquid medicine flows in from the liquid inlet of the liquid flow passage and flows out of the liquid outlet and moves upwards along with the air flow; a stop member disposed above the shrinkage air outlet and opposite to the shrinkage air outlet, the stop member atomizing the liquid medicine by stopping the liquid medicine flowing along with the air flow, wherein The bottom of the containing cavity is provided with a sinking groove extending downwards in the axial direction, and the liquid inlet of the liquid flow channel extends into the sinking groove. Preferably, the sink is an annular groove surrounding the pressure gas pipe. Preferably, the liquid medicine atomizing component further comprises a guide sleeve, wherein: the guide sleeve is sleeved outside the pressure air pipe and is used for limiting an annular flow passage with the pressure air pipe, the annular flow passage is formed into the liquid flow passage, the lower end of the guide sleeve stretches into the sinking groove, the lower port and the upper port of the guide sleeve and the pressure air pipe are respectively used for limiting the liquid inlet and the liquid outlet, and an annular gap is formed between the lower end of the guide sleeve and the groove wall of the sinking groove. Preferably, the upper port of the guide sleeve is provided with a guide slope for guiding the liquid medicine to flow out obliquely toward the radial inner side. Preferably, a plurality of gaps which are circumferentially distributed are formed in the end wall of the lower end of the guide sleeve, and the lower end of the guide sleeve abuts against the bottom of the sinking groove. Preferably, the housing defines an ellipsoidal cavity, and the major axis of the cavity is axial. Preferably, the stop member is configured in a flat column shape, and the lower end surface of the stop member is configured as a conical surface with a