CN219001574U - Breathing machine extension tube with rotary sealing cover - Google Patents

Abstract

The utility model relates to a ventilator extension tube with a rotary sealing cover, which comprises a three-way joint and an extension tube, wherein the top of the three-way joint is provided with the sealing cover; a sputum suction hole is formed in the top surface of the sealing cover; the sealing cover is provided with a rotary opening and closing device; the rotary opening and closing device comprises a base seat, a rotary table, rotary blades, a limiting plate, a rotary bar and a top sealing seat, wherein a positive limiting column and a negative limiting column are respectively arranged on the front surface and the back surface of each rotary blade; a limiting chute is arranged on the limiting plate; an anti-fouling cover is arranged on the rotating shaft; the top end of the anti-fouling cover is provided with a rotary buckle. The advantages are as follows: because the sputum suction hole is formed by the elastic thin sheet, the angle of the sputum suction pipe can be fixed up and down, left and right, discomfort to a patient caused by the change of the sputum suction angle is prevented, the safety and the sealing performance of the internal rotary opening and closing device are stronger, and the top sealing seat isolates external dirt.

Description

Breathing machine extension tube with rotary sealing cover

[ field of technology ]

The utility model relates to the technical field of medical appliances, in particular to a respirator extension tube with a rotary sealing cover.

[ background Art ]

In modern clinical medicine, a ventilator is used as an effective means capable of replacing autonomous ventilation function artificially, is commonly used in respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support treatment and emergency recovery, and occupies very important positions in the field of modern medicine, and is mainly divided into an invasive ventilator and a noninvasive ventilator, wherein the invasive mechanical ventilation is connected with the ventilator through trachea cannula and tracheal incision, the noninvasive ventilator is connected with the ventilator through a mask, and a ventilator extension tube is an important accessory of the invasive ventilator and mainly composed of a threaded tube, an extension tube, a patient interface and a ventilator interface. The sputum suction hole of the cap at the upper end of the tee joint of the existing respiratory extension tube is embedded and sealed by adopting an elastic conical or circular structure, the tightness is reduced after long-time use, the pressure of a breathing machine is leaked, and when a patient is rested, turned over or airway sputum splashes, the cap is easy to fall off, so that the pipeline is leaked, serious consequences are caused, and the risk of pollution and cross infection is increased due to the overflow of the sputum.

Chinese patent application: CN213100229U discloses a sealed breathing extension tube, including patient end joint, the cover has three way connection on the patient end joint, cover has the pipeline to connect on three way connection's the side branch interface, its characterized in that: the upper end main interface of the three-way joint is fixedly clamped with a plug cap, and a silica gel fixing piece is arranged between the upper end main interface of the three-way joint and the plug cap. Although the device has promoted the leakproofness, but the end cap of the device adopts flip design, receives external force easily and leads to the fracture, especially when patient's agitation, stands up or the sputum splash of air flue, the block drops easily and causes the pipeline to leak and lead to serious result, and the inside bacterium that breeds of lid is touched to the hand when opening easily.

In view of the above, there is a need for a ventilator extension tube with a rotary sealing cover, which not only can make the air tightness of the interface of the ventilator strong, but also can prevent the cap from falling off when the patient is rested, turned over or splashed with airway sputum, and is easy and convenient to open and free from secondary pollution.

[ utility model ]

The utility model aims to provide the extension tube of the breathing machine with the rotary sealing cover, which not only can ensure that the air tightness of the interface part of the breathing machine is strong, but also can ensure that the cover cap is not easy to fall off when a patient is rested, turned over or splashed with airway sputum, and is simple and convenient to open and can not cause secondary pollution.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the ventilator extension tube with the rotary sealing cover comprises a tee joint and an extension tube, wherein the middle end of the tee joint is connected with the extension tube; the top of the three-way joint is in threaded connection with a sealing cover, an internal thread is arranged in the sealing cover, and an external thread is arranged on the outer wall of the top of the three-way joint; the center of the top surface of the sealing cover is provided with a sputum sucking hole; a rotary opening and closing device is arranged above the sealing cover and is fixedly connected with the sealing cover; the rotary opening and closing device comprises a base seat, a rotary table, rotary blades, a limiting plate, a rotary bar and a capping seat, wherein the rotary table is clamped in the base seat, external threads are arranged on the rotary bar, and the rotary table is in threaded connection with the rotary bar; the front and back sides of the rotating blade are respectively provided with a positive limit column and a negative limit column; a limiting chute is arranged on the limiting plate, and a round hole is formed in the center of the limiting plate; the outer ring of the top surface of the capping seat is provided with a snap ring groove, the capping seat is a hollow cylinder with a round hole on the top surface, and the outer wall below the capping seat is provided with an external thread; a rotating shaft is arranged on the clamping ring groove; an anti-fouling cover is arranged on the rotating shaft; the top end of the anti-fouling cover is provided with a rotary buckle.

As a preferable example, the sputum suction hole is formed by four elastic sheets and is cross-shaped.

As another preferable example, the outer surface of the base seat is provided with a rotating groove, and the base seat is a hollow cylinder with a round hole on the bottom surface; a limiting strip is arranged on the inner wall above the rotating groove; and an inner thread is arranged on the inner wall above the limit strip.

As another preferable example, a clamping ring is arranged on the turntable, the turntable is a cylinder without a bottom surface, and a gap which can be used for placing the rotating blades and the limiting plates after rotation is arranged inside the clamping ring; the top surface of the turntable is provided with a limiting hole and a through hole; the side of the turntable is provided with a threaded hole.

More preferably, the size of the positive limit column corresponds to a limit chute on the limit plate, and the size of the negative limit column corresponds to a limit hole on the turntable.

As another preferable example, the inner thread terminal of the sealing cover is provided with a bulge, and the outer thread terminal is provided with a groove with the corresponding size of the bulge.

The utility model has the advantages that:

1. the utility model breaks through the traditional cap type sputum suction hole (the circular cap embedded in the sputum suction hole is pulled out and then inserted into the sputum suction pipe for suction when in use), and the sputum suction hole is formed by the cross-shaped elastic sheet instead, so that secondary contact with the cap can be avoided, after the sputum suction pipe is put into the sputum suction hole, the elastic sheet can fix the angle up and down and left and right, discomfort caused by the change of the sputum suction angle is prevented, and secretion outside the wall of the sputum suction pipe can be prevented from being brought out of the catheter to the greatest extent when the sputum suction pipe is pulled out after the operation is finished, and pollution is caused.

2. The utility model is provided with the rotary opening and closing device, has strong sealing performance, is not easy to fall off due to agitation, turning over or splashing of airway sputum of a patient, can be opened by rotating the rotating strip, is also provided with the top sealing seat for isolating external dirt, prevents the dirt from polluting the internal structure of the rotary opening and closing device, ensures the sealing performance of the top of the whole three-way joint in one layer, and prevents pressure leakage.

3. The utility model has strong tightness, strong safety, cleanness and sanitation, can perform the functions of sputum suction, intratracheal medicine injection and the like under the condition of not disconnecting the breathing machine, and has wide clinical application prospect.

[ description of the drawings ]

Fig. 1 is a perspective view of an extension tube of a respirator with a rotary seal cap according to the present utility model.

Fig. 2 is a disassembled view of a rotary opening and closing device of a ventilator extension tube with a rotary sealing cover of the present utility model.

Fig. 3 is a perspective view of a turntable, rotating blades and a limiting plate of an extension tube of a respirator with a rotary seal cap according to the present utility model.

Fig. 4 is a partial combination view of a turntable, rotating blades and a limiting plate of an extension tube of a ventilator with a rotary seal cap according to the present utility model.

Fig. 5 is a view showing the rotation of the rotary blade of the extension tube of the respirator with the rotary seal cover on the turntable.

Fig. 6 is a combination of a turntable, a rotary vane and a limiting plate of a ventilator extension tube with a rotary seal cap according to the present utility model.

Fig. 7 is a split view of a rotary opening and closing part and an anti-fouling part of a rotary opening and closing device of a ventilator extension pipe with a rotary seal cover according to the present utility model.

Fig. 8 is an enlarged view of a screw structure of a sealing cap and a three-way joint of an extension tube of a respirator with a rotary sealing cap according to the present utility model.

[ detailed description ] of the utility model

The utility model is further described below with reference to examples and with reference to the accompanying drawings.

Reference numerals and components referred to in the drawings are as follows:

example 1

Referring to fig. 1, 2, 3, 4, 5, 6, 7 and 8, fig. 1 is a perspective view of a ventilator extension tube with a rotary seal cap according to the present utility model, fig. 2 is a disassembled view of a rotary opening and closing device of a ventilator extension tube with a rotary seal cap according to the present utility model, fig. 3 is a perspective view of a rotary disc, a rotary blade and a limiting plate of a ventilator extension tube with a rotary seal cap according to the present utility model, fig. 4 is a partially combined view of a rotary disc, a rotary blade and a limiting plate of a ventilator extension tube with a rotary seal cap according to the present utility model, fig. 5 is a rotated-open view of a rotary blade on a rotary disc of a ventilator extension tube with a rotary seal cap according to the present utility model, fig. 6 is a combined view of a rotary disc, a rotary blade and a limiting plate of a ventilator extension tube with a rotary seal cap according to the present utility model, fig. 7 is a disassembled view of a rotary opening and closing part and a limiting plate of a rotary opening and closing device of a ventilator extension tube with a rotary seal cap according to the present utility model, and fig. 8 is an enlarged view of a three-way screw joint of a ventilator extension tube with a rotary seal cap according to the present utility model.

The ventilator extension tube with the rotary sealing cover comprises a three-way joint 1 and an extension tube 2, wherein the middle end of the three-way joint 1 is connected with the extension tube 2, the extension tube 2 is made of PVC (polyvinyl chloride) and is composed of two spiral interfaces and a middle through tube, the middle through tube is made of elastic silica gel material and is 15cm long, one spiral interface is connected with a Y-shaped interface at the tail end of a ventilator pipeline, the other spiral interface is fixedly connected with a sputum aspirator at the patient end through a transparent hollow tube and is used for ventilator gas input, and the diameters of the two spiral interfaces are 2.5cm; the top of the three-way joint 1 is in threaded connection with a sealing cover 3, an internal thread is arranged in the sealing cover 3, an external thread is arranged on the outer wall of the top of the three-way joint 1, a screw interface is also arranged on the lower part of the three-way joint 1, the diameter of the screw interface is 2.5cm, the screw interface can be sleeved at the outlet end of a tracheal cannula and an autogenous cutting catheter of a patient, and a simple respirator or an atomization device can be connected in a detachable manner; the center of the top surface of the sealing cover 3 is provided with a sputum suction hole 31; a rotary opening and closing device 4 is arranged above the sealing cover 3, and the rotary opening and closing device 4 is fixedly connected with the sealing cover 3; the rotary opening and closing device 4 comprises a base seat 41, a rotary table 42, a rotary blade 43, a limiting plate 44, a rotary bar 45 and a capping seat 46, wherein the rotary table 42 is clamped in the base seat 41, external threads are arranged on the rotary bar 45, and the rotary table 42 is in threaded connection with the rotary bar 45; positive limiting columns 431 and negative limiting columns 432 are respectively arranged on the front surface and the back surface of the rotating blade 43, the rotating blades 43 are completely closed and overlapped and are not overlapped, and the rotating blades are rectangular with arc-shaped two ends in the figure; the limiting plate 44 is provided with limiting sliding grooves 441, round holes are formed in the center of the limiting plate, the number of the limiting sliding grooves 441 is set according to the number of the blades, the shape of the limiting sliding grooves 441 is set according to the rotating track, and the limiting sliding grooves 441 in the figure are in the shape of oblique circular arcs, and the number of the limiting sliding grooves 441 is four; the outer ring of the top surface of the capping seat 46 is provided with a snap ring groove 461, the capping seat 46 is a hollow cylinder with a round hole on the top surface, and the outer wall below the capping seat 46 is provided with an external thread; a rotating shaft 462 is arranged on the clamping ring groove 461; an anti-fouling cover 463 is arranged on the rotating shaft 462; the top end of the anti-fouling cover 463 is provided with a rotary buckle 464, and the rotary buckle 464 and the buckle ring groove 461 are mutually matched and locked, similar to a music buckle structure.

In this embodiment, the sputum suction hole 31 is preferably formed by four elastic sheets, which are cross-shaped and have a diameter of 0.5cm, and are suitable for sputum suction tubes with conventional sizes, and the elastic sheets are designed to have a fixed angle, so that the problem that patients are uncomfortable due to excessive angles is avoided.

In this embodiment, it is preferable that the outer surface of the base 41 is provided with a rotating slot 411, and the base 41 is a hollow cylinder with a circular hole on the bottom; a limit strip is arranged on the inner wall above the rotary slot 411; the inner wall above the limit strip is provided with an internal thread, and the size from the limit strip to the bottom is just the size of the turntable.

In this embodiment, it is preferable that a snap ring 421 is disposed on the turntable 42, the turntable 42 is a cylinder without a bottom surface, and a gap capable of accommodating the rotating blade and the limiting plate after rotation is disposed inside the snap ring 421; the top surface of the turntable is provided with a limiting hole 422 and a through hole 423; the side of the turntable is provided with a threaded hole 424.

In this embodiment, it is preferable that the size of the positive limiting post 431 corresponds to the limiting chute 441 on the limiting plate 44, the size of the negative limiting post 432 corresponds to the limiting hole 422 on the rotary table 42, the positive limiting post 431 is clamped into the limiting chute 441 to limit the rotation path, and the rotary table 42 drives the rotary blade 43 to rotate and open and close through the negative limiting post 432.

In this embodiment, preferably, the internal thread terminal of the sealing cover 3 is provided with a protrusion, and the external thread terminal is provided with a recess with a corresponding size, when the screw thread is rotated, if the rotation degree is reached, the protrusion will be blocked into the recess, and the general and moderate strength cannot be opened, so as to effectively prevent the excessive rotation and the shortage.

The application method and principle of the utility model are as follows: firstly, preparing objects such as an endotracheal tube or an tracheostomy tube, a breathing machine, a sputum aspirator, a glove, negative pressure suction equipment and the like, connecting a threaded tube at one end of the device with a Y-shaped interface of the breathing machine, and connecting the lower end of a three-way device with a catheter port of a patient after the patient inserts the endotracheal tube or the tracheostomy tube, so as to ventilate; when the sputum suction device is operated, the glove is firstly put on, the sputum suction pipe joint is connected with the negative pressure suction device for standby, the negative pressure is regulated to be proper, the anti-fouling cover 463 is opened by an operator, the rotating strip 45 in the device is rotated to be proper angle so that the inner blade is completely opened, the elastic sheet sputum suction hole 31 on the sealing cover is exposed, the sputum suction pipe is inserted into the cross sputum suction hole 31 to suck sputum after the negative pressure is blocked, the sputum suction pipe is completely sucked, the elastic sheet can also well prevent the sputum from leaking due to the fact that the sputum suction pipe is sucked, the blade is completely closed by rotating the rotating strip 45, the anti-fouling cover 463 is closed by using a buckle so that the external dirt does not pollute the rotating opening and closing device, and the sputum suction pipe is discarded in the medical waste barrel.

It should be noted that, the utility model breaks the traditional cap type sputum suction hole 31 (the round cap embedded in the sputum suction hole is pulled out and then inserted into the sputum suction pipe for suction when in use), and is formed by using the cross-shaped elastic sheet, so that the cap can be prevented from being contacted secondarily, after the sputum suction pipe is put into the sputum suction hole 31, the elastic sheet can fix the angle up and down, left and right, the discomfort caused by the change of the sputum suction angle is prevented, the secretion outside the wall of the sputum suction pipe can be prevented from being brought out of the catheter to the greatest extent when the sputum suction pipe is pulled out after the operation is finished, the rotary opening and closing device is arranged, the tightness is strong, the rotary opening and closing device is not easy to fall off when the sputum is splashed by the sputum of the patient due to agitation, turning over or air passage, the rotary rotating strip 45 can be opened, the sealing seat 46 is also arranged to isolate external dirt, the internal structure of the rotary opening and closing device is prevented from being polluted by the dirt, and the tightness of the top of the whole three-way joint 1 is more ensured, and the pressure leakage is prevented. The utility model has strong tightness, strong safety, cleanness and sanitation, can perform the functions of sputum suction, intratracheal medicine injection and the like under the condition of not disconnecting the breathing machine, and has wide clinical application prospect.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and additions to the present utility model may be made by those skilled in the art without departing from the principles of the present utility model and such modifications and additions are to be considered as well as within the scope of the present utility model.

Claims (6)

1. The ventilator extension tube with the rotary sealing cover comprises a tee joint and an extension tube, and is characterized in that the middle end of the tee joint is connected with the extension tube; the top of the three-way joint is in threaded connection with a sealing cover, an internal thread is arranged in the sealing cover, and an external thread is arranged on the outer wall of the top of the three-way joint; the center of the top surface of the sealing cover is provided with a sputum sucking hole; a rotary opening and closing device is arranged above the sealing cover and is fixedly connected with the sealing cover; the rotary opening and closing device comprises a base seat, a rotary table, rotary blades, a limiting plate, a rotary bar and a capping seat, wherein the rotary table is clamped in the base seat, external threads are arranged on the rotary bar, and the rotary table is in threaded connection with the rotary bar; the front and back sides of the rotating blade are respectively provided with a positive limit column and a negative limit column; a limiting chute is arranged on the limiting plate, and a round hole is formed in the center of the limiting plate; the outer ring of the top surface of the capping seat is provided with a snap ring groove, the capping seat is a hollow cylinder with a round hole on the top surface, and the outer wall below the capping seat is provided with an external thread; a rotating shaft is arranged on the clamping ring groove; an anti-fouling cover is arranged on the rotating shaft; the top end of the anti-fouling cover is provided with a rotary buckle.

2. The ventilator extension tube with rotary seal cap according to claim 1, wherein the sputum suction hole is formed of four elastic sheets in a cross shape.

3. The ventilator extension tube with rotary seal cover according to claim 1, wherein the outer surface of the base seat is provided with a rotary groove, and the base seat is a hollow cylinder with a round hole on the bottom surface; a limiting strip is arranged on the inner wall above the rotating groove; and an inner thread is arranged on the inner wall above the limit strip.

4. The ventilator extension tube with the rotary sealing cover according to claim 1, wherein a clamping ring is arranged on the rotary table, the rotary table is a cylinder without a bottom surface, and a gap which can be used for placing rotary blades and limiting plates after rotation is arranged in the clamping ring; the top surface of the turntable is provided with a limiting hole and a through hole; the side of the turntable is provided with a threaded hole.

5. The ventilator extension tube with rotary seal cap of claim 4, wherein the positive stop post size corresponds to a stop slot on the stop plate and the negative stop post size corresponds to a stop hole on the dial.

6. The ventilator extension tube with rotary seal cap of claim 1, wherein the seal cap has a female threaded terminal end with a protrusion and the male threaded terminal end has a recess of a corresponding size to the protrusion.

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