CN219167398U - Tracheal catheter with cuff pressure monitoring function - Google Patents
Tracheal catheter with cuff pressure monitoring function Download PDFInfo
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- CN219167398U CN219167398U CN202320162177.6U CN202320162177U CN219167398U CN 219167398 U CN219167398 U CN 219167398U CN 202320162177 U CN202320162177 U CN 202320162177U CN 219167398 U CN219167398 U CN 219167398U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The utility model discloses an endotracheal tube with cuff pressure monitoring, which comprises an airway, a cuff and an air injection pressure measuring device, wherein the air injection pressure measuring device comprises a cylinder barrel, a one-way air inlet structure is arranged at one end of the cylinder barrel, an air charging pipe is arranged between the cylinder barrel and the cuff, an elastic structure which can be further flexible and changeable according to air pressure change in the cuff is arranged in the cylinder barrel, a display structure for monitoring air pressure in the cuff is also arranged on the cylinder barrel, the air injection pressure measuring device is arranged on the endotracheal tube, the cuff pressure can be monitored in real time while the cuff is inflated through the air injection pressure measuring device, whether the cuff pressure is in a proper range can be accurately monitored in real time, and accuracy and convenience of the cuff pressure monitoring are improved. The pressure of the air bag can be judged only by the experience of medical staff, errors caused by subjective factors are reduced, a series of complications caused by the pressure abnormality of the cuff are reduced, the monitoring is more convenient, and the working efficiency of the medical staff is improved.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to an endotracheal tube with cuff pressure monitoring.
Background
The tracheal catheter is a medical instrument inserted into the trachea of a patient, and the tail end of the tracheal catheter is connected with the breathing machine to assist or control ventilation of the patient by inflating the front end cuff and sealing the gap between the catheter and the airway mucosa. The cuff plays a role of fixing the catheter, sealing the airway and preventing oral endocrine and gastric reflux from entering the airway by mistake.
For example, patent application number 200920292573.0, patent name just discloses an endotracheal tube with partial cuff, including connecting pipe and breather pipe, the rear end of breather pipe has the scale, has the partial cuff that the upside is little both sides and the downside is big at the front end of breather pipe, and partial cuff is connected with inflation indicator bag and sealing valve through the cuff pipe, and this technical scheme has a problem, and medical personnel carries out the pressure size of judging the cuff generally by experience when inflating indicator bag through pressing the inflation indicator bag, and this kind of method error is higher.
Body position change of head and neck in operation, implantation of stomach tube and anesthetic gas N 2 The use of O and the carbon dioxide pneumoperitoneum of laparoscopic surgery also increase the catheter cuff pressure, which is preferably maintained at 15-25cmH 2 O, in order to reduce the relevant complication after the trachea cannula the too low cuff pressure can lead to gas leakage and backflows to inhale by mistake, the too high cuff pressure can lead to the local insufficient perfusion of trachea mucosa, even causes local necrosis, hemorrhage, ulcer, tracheal stenosis or tracheoesophageal fistula etc.. There is currently no effective method for solving the above problems.
The present utility model has been made based on the above-described circumstances.
Disclosure of Invention
The tracheal catheter with the cuff pressure monitoring function overcomes the defects of the prior art, can monitor the cuff pressure conveniently and continuously, effectively solves the problem of measuring the tracheal cuff pressure, and simplifies clinical work.
The utility model is realized by the following technical scheme:
the utility model provides a tracheal catheter from taking cuff pressure monitoring, includes air duct, cover bag and gas injection pressure measuring device, the front portion position of air duct is located to the cover bag, gas injection pressure measuring device includes the cylinder, be equipped with one-way inlet structure on the one end of cylinder, be equipped with the gas tube of the leading-in cover bag of gas that fills one-way inlet structure between cylinder and the cover bag, be equipped with the elastic structure that can change and then stretch out and draw back the change according to the atmospheric pressure in the cover bag in the cylinder, still be equipped with the display structure that is used for showing the flexible volume of elastic structure and then monitoring the internal atmospheric pressure of cover bag on the cylinder.
An endotracheal tube with cuff pressure monitoring as described above, the resilient structure comprising a piston slidable along the inner wall of the cylinder and a first spring capable of returning the piston after movement.
The tracheal catheter with the cuff pressure monitoring function is characterized in that the unidirectional air inlet structure comprises an air inlet connector arranged at one end of the cylinder barrel, a circle of inner air stopping ring is arranged on the inner wall of the air inlet connector, a first blocking block capable of blocking an inner hole of the inner air stopping ring is arranged between the inner air stopping ring and the cylinder barrel, one side, far away from the cylinder barrel, of the inner air stopping ring is provided with a pushing block which is connected with the first blocking block and can push the first blocking block away from the inner air stopping ring so that air can enter the inner cavity of the cylinder barrel, and a second spring used for pushing the first blocking block towards the inner air stopping ring is further arranged in the air inlet connector.
The tracheal catheter with the cuff pressure monitoring function comprises the connecting rod connected to the outer side of the first blocking piece, the connecting rod is provided with the second blocking piece which can be abutted against the inner air-stop ring and block the inner hole of the inner air-stop ring in a moving manner, the connecting rod is internally provided with the air guide channel, one channel port of the air guide channel is arranged on the outer end face of the connecting rod, and the other channel port of the air guide channel is arranged on the side wall of the connecting rod between the first blocking piece and the second blocking piece.
According to the tracheal catheter with the cuff pressure monitoring function, the stopper used for limiting the piston to reach the connection port of the inflation tube and the cylinder is arranged in the cylinder.
The tracheal catheter with the cuff pressure monitoring function is characterized in that the through hole is formed in one end, far away from the unidirectional air inlet structure, of the cylinder barrel, the display structure comprises the indication rod which is arranged on the piston and can extend out of the through hole, a plurality of first indication sections are axially distributed on the indication rod, and each first indication section is marked through different colors or pattern characters.
The tracheal catheter with the cuff pressure monitoring function comprises three first indication sections, namely a red color section, a yellow color section and a green color section sequentially along the direction of the indication rod away from the piston, wherein the pressure in the cuff is 15-25cmH 2 O, the green segment is in the position of the through hole when the pressure in the cuff is 25-60cmH 2 O, the yellow segment is in the position of the through hole, and the pressure in the cuff is higher than 60cmH 2 And when in O, the red color segment is positioned at the position of the through hole.
The tracheal catheter with the cuff pressure monitoring function is characterized in that the cylinder barrel is made of transparent materials, the display structure comprises a plurality of second indication sections arranged on the wall of the cylinder barrel, and the second indication sections are marked by scales or different colors or pattern characters.
An endotracheal tube with cuff pressure monitoring as described above, the lower portion of the inflatable tube being disposed along the inner wall of the airway tube and the upper portion extending from the side wall of the airway tube and being connected to the cylinder.
An endotracheal tube with cuff pressure monitoring as described above, wherein the lower portion of the inflation tube is disposed along the outer wall of the airway tube and the upper portion is connected to the cylinder.
Compared with the prior art, the utility model has the following advantages:
the tracheal catheter is provided with the gas injection pressure measuring device, so that the cuff pressure can be monitored in real time when the cuff is inflated through the gas injection pressure measuring device, whether the cuff pressure is in a proper range or not can be accurately monitored in real time, and the accuracy and the real-time convenience of monitoring the cuff pressure are improved. The pressure of the air bag can be judged only by the experience of medical staff, errors caused by subjective factors are reduced, a series of complications caused by the pressure abnormality of the cuff are reduced, the monitoring is more convenient, and the working efficiency of the medical staff is improved.
Drawings
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic structural view of embodiment 1 of the present utility model;
FIG. 2 is a cross-sectional view of embodiment 1 of the present utility model;
fig. 3 is an enlarged view of a portion a in fig. 2;
fig. 4 is a cross-sectional view of a one-way intake structure in embodiment 1 of the present utility model;
FIG. 5 is a schematic view showing the structure of a first block and a push block in embodiment 1 of the present utility model;
FIG. 6 is a schematic structural view of embodiment 2 of the present utility model;
FIG. 7 is a cross-sectional view of the gas injection pressure measuring device in example 3 of the present utility model.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
example 1:
the tracheal catheter with the cuff pressure monitoring function comprises an air duct 1, a cuff 2 and an air injection pressure measuring device, wherein the cuff 2 is arranged at the front part of the air duct 1, the air injection pressure measuring device comprises a cylinder 31, a one-way air inlet structure 32 is arranged at one end of the cylinder 31, an air charging pipe 4 for introducing air charged by the one-way air inlet structure 32 into the cuff 2 is arranged between the cylinder 31 and the cuff 2, an elastic structure capable of changing according to air pressure change in the cuff 2 and stretching is arranged in the cylinder 31, and a display structure for displaying stretching quantity of the elastic structure and further monitoring air pressure in the cuff 2 is further arranged on the cylinder 31.
The tracheal catheter is provided with the gas injection pressure measuring device, so that the pressure of the cuff 2 can be monitored in real time while the cuff 2 is inflated through the gas injection pressure measuring device, whether the pressure of the cuff 2 is in a proper range can be accurately monitored in real time, and the accuracy and the real-time convenience of monitoring the pressure of the cuff 2 are improved. The pressure condition of the cuff 2 can be judged only by the experience of medical staff, errors caused by subjective factors are reduced, a series of complications caused by the pressure abnormality of the cuff 2 are reduced, the monitoring is more convenient, and the working efficiency of the medical staff is improved.
The elastic structure comprises a piston 5 which can slide along the inner wall of the cylinder 31 and a first spring 6 which can restore the piston 5 after moving. The first spring 6 is arranged between the air inlet end of the cylinder 31 and the piston 5, one end of the first spring 6 is fixedly connected to the inner wall of the cylinder 31, the other end of the first spring 6 is fixedly connected to the piston 5, the fixed connection can be clamped or glued, when the pressure in the sleeve bag 2 is increased, the piston 5 is pushed to move along the inner wall of the cylinder 1 and the first spring 6 is in a stretched state, and when the pressure in the sleeve bag 2 is reduced, the first spring 6 rebounds and pulls the piston 5.
The cylinder 31 is internally provided with a stop 310 for limiting the piston 5 to reach the connection port of the inflation tube 4 and the cylinder 31, and the movement range of the piston 5 is limited by the stop 310, so that the piston 5 is prevented from passing over the connection port of the inflation tube 4 and the cylinder 31 to cause air leakage, in one embodiment, the stop 310 is integrally formed with the cylinder 31, and in another embodiment, the stop 310 can be adhered in the cylinder 31 by glue.
The inner wall of the cylinder 31 is coated with a lubricating oil film, so that the friction between the piston 5 and the inner wall of the cylinder 31 is reduced, and the pressure measurement is more sensitive.
The unidirectional air inlet structure 32 comprises an air inlet joint 321 arranged at one end of the cylinder 31, a circle of inner air stop ring 3211 is arranged on the inner wall of the air inlet joint 321, a first blocking piece 322 capable of blocking the inner hole of the inner air stop ring 3211 is arranged between the inner air stop ring 3211 and the cylinder 31, one side, far away from the cylinder 31, of the inner air stop ring 3211 is provided with a pushing block which is connected with the first blocking piece 322 and can push the first blocking piece 322 away from the inner air stop ring 3211 so that air can enter the inner cavity of the cylinder 31, and a second spring 323 used for pushing the first blocking piece 322 towards the inner air stop ring 3211 is further arranged in the air inlet joint 321. When the air outlet end of the air pumping device is inserted into the air inlet joint 321, the air outlet end can press the pushing block to push the first blocking block 322 away from the inner air-stop ring 3211, so that air blown out from the air outlet end can flow through the inner hole of the inner air-stop ring 3211 and then into the sleeve bag 2, the inner air-stop ring 3211 is an annular ring which is arranged on the inner wall of the air inlet joint 321 and protrudes inwards, and the inner air-stop ring 3211 and the air inlet joint 321 are integrally formed. The size of the first block 322 is smaller than the size of the hole in the air inlet joint 321, and the size of the first block 322 is larger than the size of the hole in the inner gas-stop ring 3211.
The pushing block comprises a connecting rod 3241 connected to the outer side of the first blocking block 322, a second blocking block 3242 which is arranged on the connecting rod 3241 and can be in inward movement contact with the inner gas-stopping ring 3211 and block the inner hole of the inner gas-stopping ring 3211 is arranged on the connecting rod 3241, a gas guide channel 3243 is arranged in the connecting rod 3241, one channel opening of the gas guide channel 3243 is arranged on the outer end surface of the connecting rod 3241, and the other channel opening of the gas guide channel 3243 is arranged on the side wall of the connecting rod 3241 between the first blocking block 322 and the second blocking block 3242.
In one embodiment, the connecting rod 3241 is adhered to the first block 322 and the second block 3242 by glue, in another embodiment, the connecting rod 3241 is screwed to the first block 322 and the second block 3242 by a screw structure, and in another embodiment, the connecting rod 3241 is integrally formed with the second block.
In an embodiment, the inflation device is an injector, when the cuff 2 is required to be inflated, the injection head of the injector is inserted into the passage opening of the air guide passage 3243 on the outer end surface of the connecting rod 3241, and the pushing block is pressed towards the inner air stop ring 3211, so that the second blocking block 3242 blocks the inner hole of the inner air stop ring 3211, and then air is injected into the inner air stop ring, and when the injected air reaches the required requirement, the injector is quickly pulled out, and the second spring 323 pushes the first blocking block 322 towards the inner air stop ring 3211 to block the inner hole of the inner air stop ring 3211 by the first blocking block 322, so that the air is restricted from flowing out of the cylinder 31.
In one embodiment, the cylinder 31, the air duct 1, the air tube 4, the air inlet connector 321, the first block 322, and the second block 3242 are all made of plastic.
The cylinder 31 is kept away from and is equipped with the through-hole 7 on the one end of one-way air inlet structure 32, the display structure is including locating on the piston 5 and can follow the pilot rod 8 that the through-hole 7 stretched out, there is a plurality of first instruction sections 81 along axial distribution on the pilot rod 8, every section first instruction section 81 sign through different colours or pattern characters.
In one embodiment, the first indication section 81 is three sections, namely a red color section, a yellow color section and a green color section in sequence along the direction that the indication rod 8 is far away from the piston 5, when the pressure intensity in the cuff 2 is 15-25cmH 2 O, the green color segment is located at the position of the through hole 7 when the pressure in the cuff 2 is 25-60cmH 2 O, the yellow segment is located at the position of the through hole 7, when the pressure in the cuff 2 is higher than 60cmH 2 And O, the red color segment is positioned at the position of the through hole 7.
The lower part of the air charging tube 4 is arranged along the outer wall of the air duct 1, and the upper part is connected with the cylinder 31.
Example 2:
an endotracheal tube with cuff pressure monitoring as shown in fig. 6, example 2 differs from example 1 in that:
the lower part of the inflation tube 4 is arranged along the inner wall of the air duct 1, and the upper part extends from the side wall of the air duct 1 and is connected with the cylinder 31. So that the inflation tube 4 is protruded from the outer wall of the airway tube 1 to affect the use when the endotracheal tube is used.
In an embodiment, the cylinder 31 is made of transparent material, and the display structure includes a plurality of second indication sections 9 provided on the wall of the cylinder 31, where the second indication sections 9 are marked by graduations or different colors or pattern characters.
In one embodiment, the second indication section 9 is three sections, namely a green color section, a yellow color section and a red color section in sequence on the outer wall of the cylinder 31 in the direction away from the air inlet joint, when the pressure intensity in the cuff 2 is 15-25cmH 2 O, the piston 5 is in the green segment position when the pressure in the cuff 2 is 25-60cmH 2 O, the piston 5 is in the yellow segment position when the pressure in the cuff 2 is higher than 60cmH 2 O, the piston 5 is in the red color segment position.
Example 3:
an endotracheal tube with cuff pressure monitoring as shown in fig. 7, example 2 differs from example 1 in that:
the first spring 6 is sleeved on the indication rod 8, the first spring 6 is arranged between the through hole 7 of the cylinder 31 and the piston 5, one end of the first spring 6 is fixedly connected to the inner wall of the cylinder 31, the other end of the first spring is fixedly connected to the piston 5, the fixed connection can be clamped or glued, when the pressure in the sleeve bag 2 increases, the piston 5 can be pushed to move along the inner wall of the cylinder 1 and enable the first spring 6 to be in a compressed state, and when the pressure in the sleeve bag 2 decreases, the first spring 6 rebounds and pushes the piston 5.
Claims (10)
1. An endotracheal tube from taking cuff pressure monitoring, characterized in that: including air duct (1), cover bag (2) and gas injection pressure measuring device, the front portion position of air duct (1) is located to cover bag (2), gas injection pressure measuring device includes cylinder (31), be equipped with one-way inlet structure (32) on the one end of cylinder (31), be equipped with between cylinder (31) and cover bag (2) with one-way inlet structure (32) inflated gas-inlet tube (4) of gas-inlet cover bag (2), be equipped with in cylinder (31) and be used for showing the flexible structure of flexible volume and then monitoring the interior atmospheric pressure of cover bag (2) according to the atmospheric pressure change in cover bag (2), still be equipped with on cylinder (31) and be used for showing the flexible volume of elastic structure and then the flexible elastic structure of change.
2. An endotracheal tube with cuff pressure monitoring as claimed in claim 1, wherein: the elastic structure comprises a piston (5) capable of sliding along the inner wall of the cylinder barrel (31), and a first spring (6) capable of resetting the piston (5) after moving.
3. An endotracheal tube with cuff pressure monitoring as claimed in claim 1, wherein: the one-way air inlet structure (32) comprises an air inlet joint (321) arranged at one end of the cylinder barrel (31), an inner stop ring (3211) is arranged on the inner wall of the air inlet joint (321), a first blocking block (322) capable of blocking an inner hole of the inner stop ring (3211) is arranged between the inner stop ring (3211) and the cylinder barrel (31), one side, far away from the cylinder barrel (31), of the inner stop ring (3211) is provided with a pushing block which is connected with the first blocking block (322) and can push the first blocking block (322) away from the inner stop ring (3211) so that gas can enter the inner cavity of the cylinder barrel (31), and a second spring (323) used for pushing the first blocking block (322) to the inner stop ring (3211) is further arranged in the air inlet joint (321).
4. An endotracheal tube with cuff pressure monitoring as claimed in claim 3, wherein: the pushing block comprises a connecting rod (3241) connected to the outer side of the first blocking block (322), the connecting rod (3241) is provided with a second blocking block (3242) which is connected to the inner blocking ring (3211) in a manner that the connecting rod (3241) can move to be abutted against the inner blocking ring (3211) and blocks an inner hole of the inner blocking ring (3211), the connecting rod (3241) is internally provided with an air guide channel (3243), a channel port of the air guide channel (3243) is arranged on the outer end face of the connecting rod (3241), and the other channel port of the air guide channel (3243) is arranged on the side wall of the connecting rod (3241) between the first blocking block (322) and the second blocking block (3242).
5. An endotracheal tube with cuff pressure monitoring as claimed in claim 1, wherein: a stop block (310) used for limiting the piston (5) to reach the connection port of the inflation tube (4) and the cylinder barrel (31) is arranged in the cylinder barrel (31).
6. An endotracheal tube with cuff pressure monitoring as claimed in claim 1, wherein: the cylinder barrel (31) is kept away from one end of one-way inlet structure (32) and is equipped with through-hole (7), display structure is including locating on piston (5) and can follow pilot rod (8) that through-hole (7) stretched out, there are a plurality of first instruction sections (81) along axial distribution on pilot rod (8), every section first instruction section (81) sign through different colours or pattern characters.
7. An endotracheal tube with cuff pressure monitoring as claimed in claim 6, wherein: the first indication section (81) is three sections, and a red color section, a yellow color section and a green color section are sequentially arranged along the direction of the indication rod (8) away from the piston (5), when the pressure intensity in the sleeve bag (2) is 15-25cmH 2 O, the green color section is positioned at the position of the through hole (7), when the pressure intensity in the cuff (2) is 25-60cmH 2 O, the yellow color section is positioned at the position of the through hole (7), when the pressure intensity in the cuff (2) is higher than 60cmH 2 And in the O process, the red color segment is positioned at the position of the through hole (7).
8. An endotracheal tube with cuff pressure monitoring as claimed in claim 1, wherein: the cylinder barrel (31) is made of transparent materials, the display structure comprises a plurality of second indication sections (9) arranged on the wall of the cylinder barrel (31), and the second indication sections (9) are marked by scales or different colors or pattern characters.
9. An endotracheal tube with cuff pressure monitoring as claimed in claim 1, wherein: the lower part of the air charging pipe (4) is arranged along the inner wall of the air duct (1), and the upper part of the air charging pipe extends out from the side wall of the air duct (1) and is connected with the cylinder barrel (31).
10. An endotracheal tube with cuff pressure monitoring as claimed in claim 1, wherein: the lower part of the air charging pipe (4) is arranged along the outer wall of the air guide pipe (1), and the upper part of the air charging pipe is connected with the cylinder barrel (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320162177.6U CN219167398U (en) | 2023-01-15 | 2023-01-15 | Tracheal catheter with cuff pressure monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320162177.6U CN219167398U (en) | 2023-01-15 | 2023-01-15 | Tracheal catheter with cuff pressure monitoring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219167398U true CN219167398U (en) | 2023-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320162177.6U Active CN219167398U (en) | 2023-01-15 | 2023-01-15 | Tracheal catheter with cuff pressure monitoring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219167398U (en) |
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2023
- 2023-01-15 CN CN202320162177.6U patent/CN219167398U/en active Active
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