CN111956931A - Atomizing medicine feeding device integrated in breathing machine pipeline - Google Patents

Abstract

The invention discloses an atomizing drug delivery device integrated in a ventilator pipeline, and relates to the technical field of medical devices. The invention includes a mixing air supply pipe and a medicine supplying pipe; a fixing plate is fixed side by side in the mixing air supplying pipe; an adjusting notch is provided on the side wall of the mixing air supplying pipe; The circular array has ventilation holes; the connecting column is provided with atomization holes, and the two ends of the atomization holes respectively penetrate the fixing plate; the drug supply pipe corresponds to the position of the atomization holes; the side of the adjustment plate is provided with adjustment holes corresponding to the ventilation holes; the adjustment plate A lever that is clearance-fitted with the adjustment notch is fixed on the peripheral side surface. The invention adjusts the air volume by rotating the adjusting plate, so that the particle size of the atomized droplets is adjusted, and the purpose of uniform and controllable particle size of the atomized droplets is achieved.

Description

A nebulized drug delivery device integrated in the ventilator pipeline

technical field

The invention belongs to the technical field of medical devices, and in particular relates to an atomized drug delivery device integrated in a ventilator pipeline.

Background technique

Medical ventilators can effectively replace the function of spontaneous ventilation, and have been widely used in respiratory failure caused by various reasons, anesthesia and respiratory management during major surgery, respiratory support treatment and emergency resuscitation, and occupy a very important position in the field of modern medicine. It is a vital medical device that can prevent and treat respiratory failure, reduce complications, and save and prolong patients' lives.

In the prior art, medical ventilators generally only provide the oxygen supply function, which lacks adaptability to patients who need to perform aerosol administration while inhaling oxygen. The patient needs to stop oxygen inhalation and remove the oxygen inhalation device to perform atomization. It is troublesome and prolongs the treatment time, which is not conducive to the recovery of the patient.

For example, Chinese Invention 201910716550.6 discloses a medical ventilator that can be nebulized and administered, including a combination of oxygen supply and atomization device, mainly including a ventilator body, and an oxygen supply device and an atomization device are arranged in the inner cavity of the ventilator body. Medication Box. The invention can meet the needs of patients for oxygen inhalation and atomized drug administration at the same time, does not need to replace equipment, and is convenient to use.

At the same time, the size of the atomized droplet particle size of the existing ventilator combined with the atomization device is not easy to adjust, and the size of the atomized droplet particle size cannot be adjusted according to the usage conditions. In addition, the existing atomizing device can only atomize a single medicinal liquid, and cannot realize the simultaneous atomization of two medicinal liquids or produce a mixed micro-encapsulation state of the two medicinal liquids.

However, this technical solution simply combines the oxygen supply and the atomization device, and has a complex structure, which is difficult to integrate and is less convenient to use.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an aerosol drug delivery device integrated in a ventilator pipeline. By setting a fixing plate, a connecting column, and a drug supply pipe, a regulating plate is arranged between the two fixing plates, and the regulating plate is rotated by rotating the regulating plate. The air volume is adjusted to realize the adjustment of the particle size of the atomized droplets, which solves the problem that the particle size of the existing atomized droplets cannot be adjusted.

In order to solve the above-mentioned technical problems, the present invention is achieved through the following technical solutions:

The invention is an atomized drug delivery device integrated in a ventilator pipeline, comprising a mixed air supply pipe and a drug supply pipe; the inner wall of the mixed air supply pipe is fixedly connected side by side with a fixing plate; the side wall of the mixed air supply pipe is provided with a Adjust the notch, and the adjustment notch is located between the two fixed plates;

A connecting column is fixedly connected between the two fixing plates; the sides of the two fixing plates are circumferentially arrayed with a one-to-one corresponding ventilation hole;

The connecting column and the mixing air supply pipe are arranged concentrically; one end of the connecting column is provided with an atomizing hole, and the two ends of the atomizing hole respectively penetrate the side surface of the fixing plate; the peripheral side surface of the connecting column is rotatably connected with an adjusting plate;

One end of the medicine supply pipe is connected with a medicine supply device, and the other end penetrates the side wall of the mixed gas supply pipe and corresponds to the position of the atomization hole;

The two sides of the regulating plate are respectively fitted with the fixing plate; the side of the regulating plate is provided with a connecting hole which is matched with the connecting column; the side of the regulating plate is provided with regulating holes corresponding to the ventilation holes one-to-one; The side face is fixedly connected with a lever which is clearance fit with the adjustment notch.

Further, the atomization hole has a circular truncated structure, and the flared end is located on the side close to the drug supply tube.

Further, an annular groove is provided on an opposite side surface of the adjusting plate; a sliding sealing ring is arranged in the annular groove.

Further, a toggle block is fixedly connected to the upper end of the toggle rod; the toggle block is an arc-shaped structure adapted to the outer wall of the mixing air supply pipe.

The present invention has the following beneficial effects:

1. In the present invention, a medicine supply pipe is arranged in the mixed air supply pipe, and the medicine supply pipe is corresponding to the atomization hole, and the medicine liquid in the medicine supply pipe is blown through the atomization hole by the air flow, so as to realize the atomization of the medicine liquid, The structure is compact and highly integrated, which effectively improves the overall convenience of use.

2. In the present invention, by rotating the adjusting plate, the ventilation volume can be adjusted, and by controlling the flow rate of the liquid medicine in the medicine supply pipe and the ventilation volume of the air supply pipe, the adjustment of the particle size of the atomized droplets can be realized, so that the atomization process is highly variable. Control, effectively improve the convenience and practicality of use.

Of course, it is not necessary for any product embodying the present invention to achieve all of the above-described advantages simultaneously.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of an aerosol drug delivery device integrated in a ventilator pipeline according to the present invention;

Fig. 2 is the structural front view of Fig. 1;

Fig. 3 is the sectional view at A-A place in Fig. 2;

Fig. 4 is a half-section view of a mixed gas supply pipe;

Fig. 5 is the structural representation of the adjustment plate;

In the accompanying drawings, the list of components represented by each number is as follows:

1-Mixing air supply pipe, 2-Drug supply pipe, 3-Fixing plate, 4-Adjusting plate, 101-Adjusting slot, 301-Connecting column, 302-Vent hole, 303-Atomizing hole, 401-Connecting hole, 402 - Adjustment hole, 403- lever, 404- sliding seal, 405- dial.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around", etc. Indicates the orientation or positional relationship, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, are constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention .

Referring to Figures 1, 2 and 4, the present invention is an aerosol drug delivery device integrated in a ventilator pipeline, including a mixed air supply pipe 1 and a drug supply pipe 2; one end of the mixed air supply pipe 1 is connected to the ventilator, The other end is connected to accessories such as a breathing mask. Fixed plates 3 are fixed and connected side by side on the inner wall of the mixing air supply pipe 1 . The side wall of the mixing air supply pipe 1 is provided with an adjustment notch 101, and the adjustment notch 101 is located between the two fixed plates 3;

A connecting column 301 is fixedly connected between the two fixing plates 3 ; the sides of the two fixing plates 3 are circumferentially arrayed with a one-to-one corresponding ventilation hole 302 .

The connecting column 301 is arranged concentrically with the mixing air supply pipe 1; one end of the connecting column 301 is provided with an atomizing hole 303, and the two ends of the atomizing hole 303 respectively penetrate the side surface of the fixing plate 3, and the peripheral side surface of the connecting column 301 is rotatably connected with the adjusting plate 4.

As shown in Figures 3 and 4, one end of the drug supply tube 2 is connected with a drug supply device, and the other end penetrates the side wall of the mixed gas supply tube 1 and corresponds to the position of the atomization hole 303. The drug supply tube 2 can be a capillary tube or a glass tube or Stainless steel needles, etc.

The medicine supply device includes two liquid storage tanks and a peristaltic pump, and the medicine liquid is injected into the medicine supply pipe 2 through the peristaltic pump. Wherein, the atomization hole 303 is a truncated cone-shaped structure, and the flared end is located on the side close to the drug supply tube 2 . The liquid medicine flows out from the medicine supply pipe 2, and passes through the atomizing hole 303 under the action of the air flow, and forms micro droplets under the shearing action of the atomizing hole 303 and the air flow, so as to realize the atomization of the liquid medicine.

As shown in FIGS. 3 and 5 , the two sides of the adjusting plate 4 are respectively attached to the fixing plate 3; The adjusting hole 402 is fixedly connected to the peripheral side of the adjusting plate 4, and a lever 403 is fixedly connected with the adjusting slot 101 in a clearance fit.

The adjustment plate 4 is rotated by the lever 403 to make the adjustment hole 402 and the ventilation hole 302 misaligned, so as to realize the adjustment of the air flow in the mixing air supply pipe 1, so that the air flow through the atomization hole 303 can be controlled, so as to realize the adjustment of the liquid medicine. The adjustment of the atomization effect can adjust the particle size of the atomized droplets. At the same time, the flow rate of the liquid medicine in the medicine supply pipe 2 can be controlled by the peristaltic pump to realize the adjustment of the atomization effect, so as to realize the adjustment of the atomization droplets. Evenly controllable.

Preferably, one opposite side of the adjusting plate 4 is provided with an annular groove; the annular groove is provided with a sliding sealing ring 404 , and the sealing effect between the adjusting plate 4 and the fixing plate 3 can be improved by the sliding sealing ring 404 .

At the same time, the upper end of the lever 403 is fixedly connected with a lever 405; the lever 405 is an arc-shaped structure adapted to the outer wall of the mixed air supply pipe 1, the adjustment convenience can be improved by the lever 403, and the upper surface of the lever 403 can be arranged evenly Anti-skid grooves improve the anti-skid effect during adjustment.

In the description of this specification, description with reference to the terms "one embodiment," "example," "specific example," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one aspect of the present invention. in one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-disclosed preferred embodiments of the present invention are provided only to help illustrate the present invention. The preferred embodiments do not exhaust all the details, nor do they limit the invention to only the described embodiments. Obviously, many modifications and variations are possible in light of the contents of this specification. These embodiments are selected and described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is to be limited only by the claims and their full scope and equivalents.

Claims (4)

1. An aerosol administration device integrated in a ventilator circuit, comprising: comprises a mixed gas supply pipe (1) and a medicine supply pipe (2); the inner wall of the mixed gas supply pipe (1) is fixedly connected with fixing plates (3) side by side; the side wall of the mixed gas supply pipe (1) is provided with an adjusting notch (101), and the adjusting notch (101) is positioned between the two fixing plates (3);

a connecting column (301) is fixedly connected between the two fixing plates (3); the side surfaces of the two fixing plates (3) are circumferentially arrayed with vent holes (302) which are in one-to-one correspondence;

the connecting column (301) and the mixed gas supply pipe (1) are arranged concentrically; one end of the connecting column (301) is provided with an atomizing hole (303), and two ends of the atomizing hole (303) respectively penetrate through the side surface of the fixing plate (3); the circumferential side surface of the connecting column (301) is rotatably connected with an adjusting plate (4);

one end of the medicine supply pipe (2) is connected with a medicine supply device, and the other end of the medicine supply pipe penetrates through the side wall of the mixed air supply pipe (1) and corresponds to the atomizing holes (303);

two side surfaces of the adjusting plate (4) are respectively attached to the fixing plate (3); the side surface of the adjusting plate (4) is provided with a connecting hole (401) matched with the connecting column (301); the side surface of the adjusting plate (4) is provided with adjusting holes (402) which correspond to the vent holes (302) one by one; the side surface of the adjusting plate (4) is fixedly connected with a shifting lever (403) which is in clearance fit with the adjusting notch (101).

2. The aerosol administration device integrated in a ventilator circuit according to claim 1, wherein the aerosol hole (303) has a truncated cone-shaped structure, and the flared end is located at a side close to the administration tube (2).

3. The aerosol administration device integrated in a ventilator circuit according to claim 1, wherein one opposite side of the regulating plate (4) is provided with an annular groove; a sliding sealing ring (404) is arranged in the annular groove.

4. The aerosol delivery device integrated in a ventilator circuit according to claim 1, 2 or 3, wherein a dial (405) is fixedly connected to an upper end of the dial (403); the shifting block (405) is of an arc structure matched with the outer wall of the mixing gas supply pipe (1).

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