CN212914137U - Novel anti-backflow tracheal inner sleeve - Google Patents
Novel anti-backflow tracheal inner sleeve Download PDFInfo
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- CN212914137U CN212914137U CN202020275824.0U CN202020275824U CN212914137U CN 212914137 U CN212914137 U CN 212914137U CN 202020275824 U CN202020275824 U CN 202020275824U CN 212914137 U CN212914137 U CN 212914137U
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- backflow limiting
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Abstract
The utility model relates to a tracheal cannula nursing articles for use field. A novel anti-backflow tracheal inner cannula comprises an inner cannula body, wherein the rear end of the inner cannula body is detachably connected with an anti-backflow valve; the anti-backflow valve comprises a valve body and an anti-backflow limiting part arranged in the valve body; the two anti-backflow limiting pieces are arranged at the bottom and the top in the valve body in a staggered manner from front to back along the axial direction, and gaps for ventilation are reserved between all the anti-backflow limiting pieces and the inner wall of the valve body; the orthographic projection surface of the anti-backflow limiting piece is smaller than 1/2 of the orthographic projection surface of the valve body channel and larger than 1/3 of the orthographic projection surface of the valve body channel; the front side surface of the anti-backflow limiting piece is an arc-shaped curved surface; the rear end of the valve body is in threaded connection with a plug. This patent is through optimizing the interior sheathed tube structure of tradition, has avoided tracheotomy patient postoperative because of sputum backflows, leads to lung to infect and relevant complication scheduling problem.
Description
Technical Field
The utility model relates to a tracheal cannula nursing articles for use field specifically is interior sleeve pipe of trachea incision intubate.
Background
Tracheotomy is an emergency technique for rescuing critical patients, and can improve dyspnea caused by various reasons after operation. The front wall of a neck trachea is cut, a tracheal catheter with a proper size is inserted into a trachea through the cut, and a patient can directly carry out a breathing operation through the tracheal catheter.
Tracheotomy aims at preventing or quickly relieving respiratory tract obstruction, ensuring smooth respiratory tract, ensuring effective ventilation and improving respiration.
After tracheotomy, a special tracheotomy cannula must be inserted into the patient's airway. A conventional tracheotomy cannula or cannula includes an outer tube with end plates at the ends for fixation outside the patient's larynx and an inner cannula inserted into the outer tube.
In the postoperative care process, patients often cause sputum splash due to cough, bed sheets and clothes are polluted, neck skin is susceptible to infection, and virus and bacteria can invade the patients from tracheotomy positions. The existing intubation used after tracheotomy does not have the function of anti-reflux, and has the following defects that 1) sputum moves backwards, which can cause the risk of serious lung infection and related complications of patients. 2) The sputum is large in impact force sprayed from the intubation tube after tracheotomy, so that long-distance pollution is easily caused, and the pollution coverage area is large.
The application number 201220681682.3 discloses an airflow check valve for a trachea cannula device, which comprises a valve body, a valve sheet external blocking device, a valve sheet fixing device and a valve sheet. The airflow one-way valve is inserted into the opening end of the trachea cannula device. The one-way valve of the patent can realize the obstruction of expectoration. The disadvantages are that the retrograde movement of sputum cannot be limited, the ventilation effect is ensured, and particularly, the patients with pulmonary ventilation dysfunction have expiratory dyspnea and are not favorable for the recovery of the disease condition.
SUMMERY OF THE UTILITY MODEL
To the problem that prior art exists, the utility model provides a novel anti-backflow endotracheal tube to solve above at least one technical problem.
In order to achieve the aim, the utility model provides a novel anti-backflow tracheal inner sleeve, which comprises an inner sleeve body and is characterized in that the rear end of the inner sleeve body is detachably connected with an anti-backflow valve;
the anti-backflow valve comprises a valve body and an anti-backflow limiting part arranged in the valve body;
the two anti-backflow limiting pieces are arranged at the bottom and the top in the valve body in a staggered manner from front to back along the axial direction, and gaps for ventilation are reserved on the inner walls of the valve body by all the anti-backflow limiting pieces;
the orthographic projection surface of each anti-backflow limiting piece is smaller than 1/2 of the orthographic projection surface of the valve body channel and larger than 1/3 of the orthographic projection surface of the valve body channel;
the front side surface of the anti-backflow limiting piece is an arc-shaped curved surface;
the rear side surface of the anti-backflow limiting piece is perpendicular to the central axis of the valve body;
the rear end of the valve body is in threaded connection with a sealing plug.
This patent is through optimizing the interior sheathed tube structure of tradition, has avoided tracheotomy patient's sputum to flow backward, leads to the problem of lung infection. Through anti-backflow limiting part, the impact force of sputum ejection is slowed down, the direction of the sputum ejection is controlled, and medical workers can conveniently process the sputum. Through the optimization of the structure of the anti-backflow limiting part, the connection strength between the anti-backflow limiting part and the inner wall of the valve body is convenient to guarantee, and the impact force of the anti-backflow limiting part on sputum is slowed down. This patent is through increasing to be equipped with to seal the jam, is applicable to the tracheotomy later stage, and through the interior sleeve pipe of shutoff, the recovered condition of test patient's air flue. The traditional pipe blocking needs to pull out the original disposable tracheal tube, re-place the metal tube and manually and temporarily manufacture the pipe blocking plug, so that the economic burden of a patient and the pain of the patient during pipe replacement are increased, and the workload of medical staff is greatly increased. Meanwhile, the manual manufacturing process varies from person to person, so that the pipe blocking effect cannot be guaranteed, and the operation is inconvenient.
Further preferably, a pull ring is fixedly connected to the rear side of the sealing plug. The rotation of the sealing plug is convenient to drive.
Preferably, the plugging plug is connected with a rubber strip, and a rubber ring is fixed on the rubber strip;
the rubber ring is rotatably connected with the outer wall of the valve body.
Avoiding the loss of the seal plug.
Preferably, the rear end of the inner sleeve body is provided with a joint in threaded connection with the valve body, the outer diameter of the front end of the joint is smaller than that of the rear end of the joint, the outer wall of the rear end of the joint is provided with an external thread, the front end of the valve body is provided with an internal thread, and the axial length of the internal thread is greater than that of the external thread;
a first identification line with the length direction parallel to the axial direction is arranged on the outer wall of the valve body;
the front end of the joint is provided with a second identification line for rotationally aligning the first identification line;
when the first identification line and the second identification line are level, the two anti-backflow limiting parts are arranged up and down, the anti-backflow limiting part positioned on the front side is positioned at the bottom in the valve body, and the anti-backflow limiting part positioned on the rear side is positioned at the top in the valve body.
The bottom that is arranged in the place ahead in two anti-backward flow locating parts is convenient for guarantee, the bottom that is arranged in the rear. The non-return effect of the anti-backflow limiting part is convenient to guarantee. And the valve body is provided with a reference basis for installing in place.
Preferably, the front end of the valve body is provided with a clamping joint, the rear end of the inner sleeve body is provided with an insertion hole for axially inserting the clamping joint, the rear end of the inner sleeve body is provided with an annular groove for guiding the clamping joint to rotate circumferentially, and the annular groove is internally provided with a limiting block for limiting the clamping joint circumferentially;
when the bayonet joint with when the stopper offsets, two anti backward flow locating part set up from top to bottom, and the anti backward flow locating part that is located the front side is located the bottom in the valve body, and the anti backward flow locating part that is located the rear side is located the top in the valve body.
The bottom that is arranged in the place ahead in two anti-backward flow locating parts is convenient for guarantee, the bottom that is arranged in the rear. The non-return effect of the anti-backflow limiting part is convenient to guarantee. And the valve body is provided with a reference basis for installing in place.
Preferably, the valve body is provided with an oxygen inhalation port which extends upwards and is used for inserting an oxygen inhalation pipe;
the oxygen inhalation port is positioned in front of the anti-backflow limiting piece and behind the position where the valve body is connected with the inner sleeve body;
the oxygen uptake port is connected with a plastic sealing cover, and the plastic sealing cover is connected with the oxygen uptake port through a connecting belt.
The oxygen inhalation port and the oxygen inhalation tube are convenient to be plugged, and the oxygen inhalation tube switches between oxygen inhalation and oxygen non-inhalation of the patient.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic partial structure diagram of embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 3 of the present invention;
fig. 4 is a schematic view of a partial structure of an inner sleeve body according to embodiment 4 of the present invention;
fig. 5 is a schematic view of a partial structure of a valve body according to embodiment 4 of the present invention;
fig. 6 is a cross-sectional view of an anti-backflow valve according to embodiment 5 of the present invention.
Wherein: the oxygen inhalation valve comprises an inner sleeve body 1, an anti-backflow valve 2, a sealing plug 3, a second identification line 11, an insertion opening 12, an annular groove 13, a valve body 21, an anti-backflow limiting part 22, a first identification line 23, a clamping joint 24, an oxygen inhalation port 25, a pull ring 31, a rubber strip 32 and a rubber ring 33.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
In specific embodiment 1, referring to fig. 1, a novel anti-backflow endotracheal tube comprises an inner tube body 1, wherein an anti-backflow valve 2 is detachably connected to the rear end of the inner tube body 1; the anti-backflow valve 2 comprises a valve body 21 and an anti-backflow limiting piece 22 arranged in the valve body; two anti-backflow limiting pieces 22 are arranged, the two anti-backflow limiting pieces 22 are arranged at the bottom and the top in the valve body in a staggered mode from front to back along the axial direction, and gaps for ventilation are reserved between all the anti-backflow limiting pieces and the inner wall of the valve body; the orthographic projection surface of each anti-backflow limiting piece is smaller than 1/2 of the orthographic projection surface of the valve body channel and is larger than 1/3 of the orthographic projection surface of the valve body channel; the front side surface of the anti-backflow limiting piece is an arc-shaped curved surface; the rear side surface of the anti-backflow limiting piece is perpendicular to the central axis of the valve body; the rear end of the valve body is in threaded connection with a plug 3. This patent is through optimizing the interior sheathed tube structure of tradition, has avoided tracheotomy patient's sputum to flow backward, leads to the problem of lung infection. Through anti-backflow limiting part, the impact force of sputum ejection is slowed down, the direction of the sputum ejection is controlled, and medical workers can conveniently process the sputum. Through the optimization of the structure of the anti-backflow limiting part, the connection strength between the anti-backflow limiting part and the inner wall of the valve body is convenient to guarantee, and the impact force of the anti-backflow limiting part on sputum is slowed down. This patent is through increasing to be equipped with to seal the jam, is applicable to the tracheotomy later stage, and through the interior sleeve pipe of shutoff, the recovered condition of test patient's air flue. The traditional pipe blocking needs to pull out the original disposable tracheal tube, re-place the metal tube and manually and temporarily manufacture the pipe blocking plug, so that the economic burden of a patient and the pain of the patient during pipe replacement are increased, and the workload of medical staff is greatly increased. Meanwhile, the manual manufacturing process varies from person to person, so that the pipe blocking effect cannot be guaranteed, and the operation is inconvenient. The thickness of the anti-backflow limiting parts gradually decreases from the far ends of the two anti-backflow limiting parts to the near ends of the two anti-backflow limiting parts.
The rear end of the inner cannula body referred to in this patent refers to the end of the outer tube that exposes the tracheotomy cannula.
The axial projections of the two anti-backflow limiting parts form a gap with the width of 2mm-3 mm. The axial distance between adjacent anti-backflow limiting parts is about 1 cm. Such as 1cm to 1.3 cm. The front side surface is an arc-shaped curve parallel to the cross section in the axial direction.
When the blocking cover is not closed, a breathable and waterproof collecting bag can be connected to the rear side of the valve body. Thereby realizing the collection of sputum during expectoration. Avoid the sputum that flows out from the valve body to the pollution of clothing.
Referring to fig. 2, embodiment 2, on the basis of embodiment 1, a pull ring 31 is fixedly connected to the rear side of the plug. The rotation of the sealing plug is convenient to drive. The plugging plug is connected with a rubber strip 32, and a rubber ring 33 is fixed on the rubber strip 32; the rubber ring 33 is rotatably connected to the outer wall of the valve body. Avoiding the loss of the seal plug.
Referring to fig. 3, in embodiment 3, on the basis of embodiment 1, the valve body is in threaded connection with the inner sleeve body; a first identification line 23 with the length direction parallel to the axial direction is arranged on the outer wall of the valve body; a second identification line 11 for rotationally aligning the first identification line is arranged on the outer wall of the inner sleeve body 1; when the first identification line 23 and the second identification line 11 are flush, the two anti-backflow limiting parts are arranged up and down, the anti-backflow limiting part positioned on the front side is positioned at the bottom in the valve body, and the anti-backflow limiting part positioned on the rear side is positioned at the top in the valve body. The bottom that is arranged in the place ahead in two anti-backward flow locating parts is convenient for guarantee, the bottom that is arranged in the rear. The non-return effect of the anti-backflow limiting part is convenient to guarantee. And the valve body is provided with a reference basis for installing in place.
Referring to fig. 4 and 5, in embodiment 4, on the basis of embodiment 1, a bayonet joint 24 is arranged at the front end of the valve body, an insertion hole 12 for axially inserting the bayonet joint is arranged at the rear end of the inner sleeve body, an annular groove 13 for guiding the bayonet joint to circumferentially rotate is arranged at the rear end of the inner sleeve body, and a limit block for circumferentially limiting the bayonet joint is arranged in the annular groove 13; when the clamping joint 24 abuts against the limiting block, the two anti-backflow limiting pieces are arranged up and down, the anti-backflow limiting piece positioned on the front side is positioned at the bottom in the valve body, and the anti-backflow limiting piece 22 positioned on the rear side is positioned at the top in the valve body. The bottom that is arranged in the place ahead in two anti-backward flow locating parts is convenient for guarantee, the bottom that is arranged in the rear. The non-return effect of the anti-backflow limiting part is convenient to guarantee. And the valve body is provided with a reference basis for installing in place.
Referring to fig. 6, in embodiment 5, on the basis of embodiment 1, an oxygen inhalation port 25 extending upward and used for inserting an oxygen inhalation tube is provided on the valve body; the oxygen inhalation port 25 is positioned in front of the anti-backflow limiting piece and behind the position where the valve body is connected with the inner sleeve body; the oxygen inhalation port is connected with a plastic sealing cover, and the plastic sealing cover and the oxygen inhalation port are connected with the connecting band. The oxygen inhalation port and the oxygen inhalation tube are convenient to be plugged, and the oxygen inhalation tube switches between oxygen inhalation and oxygen non-inhalation of the patient.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A novel anti-backflow tracheal inner cannula comprises an inner cannula body and is characterized in that the rear end of the inner cannula body is detachably connected with an anti-backflow valve;
the anti-backflow valve comprises a valve body and an anti-backflow limiting part arranged in the valve body;
the two anti-backflow limiting pieces are arranged at the bottom and the top in the valve body in a staggered manner from front to back along the axial direction, and gaps for ventilation are reserved on the inner walls of the valve body by all the anti-backflow limiting pieces;
the orthographic projection surface of each anti-backflow limiting piece is smaller than 1/2 of the orthographic projection surface of the valve body channel and larger than 1/3 of the orthographic projection surface of the valve body channel;
the front side surface of the anti-backflow limiting piece is an arc-shaped curved surface;
the rear side surface of the anti-backflow limiting piece is perpendicular to the central axis of the valve body;
the rear end of the valve body is in threaded connection with a plug.
2. The novel anti-reflux endotracheal tube of claim 1, characterized by: the plugging plug is connected with a rubber strip, and a rubber ring is fixed on the rubber strip;
the rubber ring is rotatably connected with the outer wall of the valve body.
3. The novel anti-reflux endotracheal tube of claim 1, characterized by: the inner wall of the valve body is connected with two anti-backflow limiting parts which are arranged in front and at the back;
the valve body is in threaded connection with the inner sleeve body;
a first identification line with the length direction parallel to the axial direction is arranged on the outer wall of the valve body;
a second identification line for rotationally aligning the first identification line is arranged on the outer wall of the inner sleeve body;
when the first identification line and the second identification line are level, the two anti-backflow limiting parts are arranged up and down, the anti-backflow limiting part positioned on the front side is positioned at the bottom in the valve body, and the anti-backflow limiting part positioned on the rear side is positioned at the top in the valve body.
4. The novel anti-reflux endotracheal tube of claim 1, characterized by: the inner wall of the valve body is connected with two anti-backflow limiting parts which are arranged in front and at the back;
the front end of the valve body is provided with a clamping joint, the rear end of the inner sleeve body is provided with an insertion hole for axially inserting the clamping joint, the rear end of the inner sleeve body is provided with an annular groove for guiding the clamping joint to circumferentially rotate, and a limiting block for circumferentially limiting the clamping joint is arranged in the annular groove;
when the bayonet joint with when the stopper offsets, two anti backward flow locating part set up from top to bottom, and the anti backward flow locating part that is located the front side is located the bottom in the valve body, and the anti backward flow locating part that is located the rear side is located the top in the valve body.
5. The novel anti-reflux endotracheal tube of claim 1, characterized by: the valve body is provided with an oxygen uptake port which extends upwards and is used for inserting an oxygen uptake pipe;
the oxygen inhalation port is positioned in front of the anti-backflow limiting piece and behind the position where the valve body is connected with the inner sleeve body;
the oxygen uptake port is connected with a plastic sealing cover, and the plastic sealing cover is connected with the oxygen uptake port through a connecting belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020275824.0U CN212914137U (en) | 2020-03-09 | 2020-03-09 | Novel anti-backflow tracheal inner sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020275824.0U CN212914137U (en) | 2020-03-09 | 2020-03-09 | Novel anti-backflow tracheal inner sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN212914137U true CN212914137U (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020275824.0U Active CN212914137U (en) | 2020-03-09 | 2020-03-09 | Novel anti-backflow tracheal inner sleeve |
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|---|---|
| CN (1) | CN212914137U (en) |
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- 2020-03-09 CN CN202020275824.0U patent/CN212914137U/en active Active
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