CN215426407U - Pressure stabilizer and drainage device - Google Patents
Pressure stabilizer and drainage device Download PDFInfo
- Publication number
- CN215426407U CN215426407U CN202120828734.4U CN202120828734U CN215426407U CN 215426407 U CN215426407 U CN 215426407U CN 202120828734 U CN202120828734 U CN 202120828734U CN 215426407 U CN215426407 U CN 215426407U
- Authority
- CN
- China
- Prior art keywords
- pressure
- cavity
- chamber
- deformable
- elastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- External Artificial Organs (AREA)
Abstract
The utility model provides a voltage regulator device and drainage device, voltage regulator device is mainly including deformable cavity and voltage stabilizing structure, but be formed with the chamber in the deformable cavity and press and communicate with external constant voltage equipment, and the voltage stabilizing structure is used for applying the effort to deformable cavity to make deformable cavity produce deformation under the simultaneous effect of the effort of chamber pressure and voltage stabilizing structure, make the chamber pressure in the deformable cavity remain stable, so that the external constant voltage equipment who communicates with it maintains the constant voltage. Borrow this, the voltage regulator device of this application can provide stable constant voltage environment for external constant voltage equipment. In addition, the drainage device of this application can provide invariable negative pressure environment to do benefit to the drainage operation of carrying out with the constant voltage.
Description
Technical Field
The embodiment of the application relates to the technical field of medical instruments, in particular to a pressure stabilizing device and a drainage device.
Background
In the field of medical device technology, the related applications of air bag (air cavity) and water bag (water cavity) are often used, and there are usually stable or dynamic requirements for the pressure and volume of the above-mentioned cavity, such as the following scenarios:
firstly, an artificial airway is an important measure for supporting the life of a critical patient, and an artificial airway air bag is an air bag arranged at the front end of a tracheal cannula and an tracheostomy tube and used for sealing the airway and fixing a tracheal tube relatively and used for assisting breathing or mechanical ventilation. The mechanical ventilation effect is influenced by air leakage caused by insufficient inflation of the air bag, and the secretion on the subglottal air bag flows downwards to easily cause aspiration and even cause the occurrence of ventilator-associated pneumonia (VAP); over inflation of the balloon can result in lesion necrosis of the airway mucosa. The pressure of the air bag is monitored for 1 time within 4 h-6 h according to the 2006 version mechanical ventilation guide requirement, and the pressure of the artificial airway air bag is ensured to be 25cmH 2O-30 cmH2O (1cmH2O is 0.098 kPa).
Secondly, the current clinical management of the air bag pressure is not optimistic, and particularly for patients with ICU (intensive care unit) who carry the tube for a long time, if the patients turn over or go out to check, the positions of the patients are changed, the properties of the air bag are influenced, the pressure is fluctuated, and the degeneration and necrosis of the tracheal mucosa are avoided. The pressure of the air bag needs to be monitored in time. The pressure of the air bag is mainly monitored by a handheld pressure measuring device. And lack of a device which can continuously monitor the pressure of the air bag and timely compensate the pressure of the air bag. The air bag is maintained in a stable range for a long time, and the change in the pressure of the air bag can be found in time and supplemented in time. There are reports in the literature: the continuous monitoring of the pressure of the mechanical ventilation air bag of the artificial airway and the relatively intermittent monitoring can improve the treatment effect of the respirator, shorten the treatment time, reduce the incidence rate of VAP and reduce the use intensity of antibiotics, and have important clinical implementation value. Therefore, a pressure stabilizing device capable of continuously monitoring the pressure of the air bag is urgently needed in clinic.
Thirdly, the current pleuroperitoneal cavity drainage device mainly comprises a single cavity drainage tube negative pressure ball, a single cavity tube wall negative pressure suction and a single cavity tube pedal negative pressure suction.
The principle of the single-cavity drainage tube negative pressure ball is that negative pressure is formed by elastic retraction force of a ball body wall after the negative pressure ball is pinched flat. The defects that the pressure is uncontrollable, the drainage effect is influenced when the pressure is too small, and the suction into a omentum and an intestinal wall causes the consequences of tube blockage, intestinal obstruction, even necrosis and the like when the pressure is too large; secondly, the volume is limited, and the drainage quantity is more, and the drainage is required to be frequently replaced and emptied; and thirdly, an effective one-way valve control head is not configured, and the possibility of reverse flow exists when the drainage liquid amount is large or the drainage liquid is extruded. Chinese patent with publication number CN205163738U (application number 201520812916) discloses a conjoined negative pressure ball drainage device, which is formed by connecting a spherical upper end drainage ball and a spherical lower end drainage ball through a one-way drainage valve, and the device has large drainage volume, can avoid replacing the drainage ball device for many times, and can also avoid countercurrent, but the pressure is still uncontrollable.
The principle of the single-cavity pipe wall negative pressure suction is that negative pressure is generated by connecting a wall negative pressure channel. The defects are obvious, firstly, the drainage tube is thick and hard, the abdominal wall is greatly damaged, the influence on visceral organs is large, and the intestinal canal is easily pressed to cause obstruction and even necrosis; secondly, pressure fluctuation, due to lack of a pressure limiting device, when a local lacuna disappears, the pressure rises sharply, a series of adverse consequences appear, including intestinal obstruction, tissue necrosis and even massive hemorrhage, and the life is threatened; thirdly, the use and carrying are very inconvenient, and the application is difficult when the field and the conditions are crude.
The principle of the single-cavity tube pedal negative pressure suction is that negative pressure is formed after pedal air exhaust is adopted for a fixed volume space. The defects that a specially-assigned person is needed to step on the pedal, and the requirement on manpower configuration is high; secondly, although the pressure can be adjusted according to the force of the pedal, the force is larger and is difficult to accurately control; thirdly, the use is inconvenient, and the application is difficult in the field and battlefield conditions.
The three described pleuroperitoneal cavity drainage devices can not simultaneously meet the requirements of simple and convenient use, constant and controllable pressure and large drainage quantity. Therefore, a pleuroperitoneal cavity drainage device which is simple and convenient to use, constant and controllable in pressure and good in drainage effect is urgently needed.
Fourthly, multiple application scenes such as: pressure dressing after limb fracture, pressure dressing during adjustable inflatable joint surgery (blocking blood flow and stopping bleeding), pressure dressing for deep venous thrombosis (preventing lower limb venous thrombosis), pressure dressing for wound surface after breast cancer surgery, pressure dressing combined with negative pressure suction after skin grafting, pressure dressing after skull repairing surgery, pressure dressing after arterial puncture, and pressure dressing after extraction of deep vein catheterization.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present application provides a pressure stabilizer and a drainage device to overcome the above problems or at least partially solve the above problems.
The embodiment of the application provides a steady voltage liquid device, it includes: the deformable chamber is internally provided with chamber pressure meeting a preset pressure range and is communicated with an external constant pressure device; and a pressure stabilizing structure for applying an acting force to the deformable chamber; the deformable cavity can be deformed under the simultaneous action of the cavity pressure and the acting force, so that the cavity pressure is kept within the preset pressure range, and the external constant pressure device is maintained in a constant pressure environment.
Optionally, the deformable chamber comprises a bladder or a piston cavity.
Optionally, the pressure stabilizing apparatus further includes an access channel, which is communicated with the deformable chamber, and is configured to fill gas or liquid into the deformable chamber through the access channel, or to extract gas or liquid in the deformable chamber through the access channel, so as to adjust the chamber pressure formed in the deformable chamber, so that the chamber pressure satisfies the preset pressure range.
Optionally, the pressure stabilizing structure comprises an elastic member for providing an elastic acting force to the deformable chamber; the deformable chamber is deformed under the simultaneous action of the chamber pressure and the elastic acting force until the chamber pressure and the elastic acting force reach balance, so that the chamber pressure formed in the deformable chamber is maintained in the preset pressure range.
Optionally, the cavity pressure formed in the deformable chamber is positive pressure, and the elastic member is configured to provide the elastic thrusting force corresponding to the preset pressure range to the deformable chamber; when the cavity pressure is smaller than the preset pressure intensity range, the elastic abutting force provided by the elastic piece is larger than the cavity pressure, so that the deformable cavity is subjected to contraction deformation under the action of the elastic abutting force, the cavity pressure is gradually increased until the cavity pressure and the elastic abutting force are balanced; when the cavity pressure is larger than the preset pressure range, the elastic pushing force provided by the elastic piece is smaller than the cavity pressure, so that the deformable cavity is expanded and deformed under the action of the cavity pressure, the cavity pressure is gradually reduced, and the cavity pressure and the elastic pushing force are balanced.
Optionally, the cavity pressure formed in the deformable chamber is negative pressure, and the elastic member is configured to provide an elastic traction force corresponding to the preset pressure range to the deformable chamber; when the cavity pressure is smaller than the preset pressure range, the elastic traction force provided by the elastic piece is smaller than the cavity pressure, so that the deformable cavity is subjected to contraction deformation under the action of the cavity pressure to gradually increase the cavity pressure until the cavity pressure and the elastic traction force are balanced; when the pressure in the cavity is larger than the preset pressure range, the elastic traction force provided by the elastic part is larger than the cavity pressure, so that the deformable cavity is expanded and deformed under the action of the elastic traction force to gradually reduce the cavity pressure until the cavity pressure and the elastic traction force are balanced.
Optionally, the elastic member includes a preset number of spring elements, and the preset number of spring elements is determined according to the preset pressure range, so that the elastic acting force provided by the elastic member is adapted to the preset pressure range.
Optionally, the spring element is a constant force spring.
Optionally, the pressure stabilizing structure further comprises a linkage, and the elastic member applies the elastic acting force to the deformable chamber through the linkage; wherein the linkage member has a contact surface which is in substantial contact with the deformable chamber.
Optionally, the cross-sectional area of the contact surface is substantially the same as the cross-sectional area of the deformable chamber; alternatively, the cross-sectional area of the contact surface is determined according to the preset pressure range.
Optionally, the pressure stabilizing device further includes an identifier for identifying a comparison result of the current cavity pressure in the deformable cavity compared to the preset pressure range.
Optionally, the external constant pressure device comprises at least one of an endotracheal tube, a laryngeal mask, a pressurized dressing pouch, a balloon cover, and a drainage pouch.
Another embodiment of the present application provides a drainage device, comprising a drainage tube; the liquid storage cavity is communicated with the drainage tube; a deformable chamber in which a chamber pressure satisfying a preset negative pressure range is formed; the filtering structure is arranged between the liquid storage cavity and the deformable cavity and is used for passing through gas molecules and stopping the liquid molecules; and a pressure stabilizing structure for applying a traction force to the deformable chamber; the deformable cavity is deformed under the simultaneous action of the cavity pressure and the traction force, so that the cavity pressure is kept within the preset negative pressure range, and the drainage tube is controlled to conduct drainage liquid into the liquid storage cavity at a constant pressure.
Optionally, the drainage device further includes an access channel, which is communicated with the deformable chamber and is used for extracting gas in the deformable chamber, so that the cavity pressure formed in the deformable chamber meets the preset negative pressure range.
Optionally, the pressure stabilizing structure comprises an elastic member for providing elastic traction to the deformable chamber; wherein, the deformable chamber can be expanded and deformed under the action of the elastic traction force of the elastic element; or the deformable chamber can be subjected to the cavity pressure to generate shrinkage deformation; and the deformable chamber is deformed under the simultaneous action of the cavity pressure and the elastic traction force until the cavity pressure and the elastic traction force reach balance.
It can be seen from the above technical solution that, the pressure stabilizing device of each embodiment of the present application utilizes the deformable chamber formed with the chamber pressure satisfying the preset pressure range, and the pressure stabilizing structure capable of applying an acting force to the deformable chamber, so that the deformable chamber can be expanded, deformed or contracted under the simultaneous action of the current chamber pressure and the acting force of the pressure stabilizing structure, so as to dynamically adjust the chamber pressure in the deformable chamber, so that the deformable chamber can be always kept in the preset pressure range, by virtue of the design, the external constant pressure device connected with the pressure stabilizing device of the present application can be maintained in a constant pressure environment, and the operational convenience and operational safety of the external constant pressure device can be improved.
The voltage stabilizing device can be suitable for various medical operating instruments with constant-voltage operation requirements, can flexibly adjust the acting force of the voltage stabilizing structure according to the actual constant-voltage range requirements of the medical operating instruments, and has the advantages of simple structural design and wide application range.
In addition, the drainage device that this application provided can provide the drainage tube and realize constant voltage ground drainage operation under the environment of invariable negative pressure through the design of steady voltage structure to improve the security of drainage operation.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 and 2 are schematic diagrams of an embodiment of a voltage stabilizer according to a first embodiment of the present application;
fig. 3 and 4 are diagrams illustrating an embodiment of a voltage stabilizer according to a second embodiment of the present application
Fig. 5 and 6 are schematic views of an embodiment of a drainage device according to a third embodiment of the present application.
Element number
1: a voltage stabilizer;
11: a deformable chamber;
111: a pouch;
112: a piston cavity;
12: a three-way pipe;
13: a voltage stabilizing structure;
131: an elastic member;
132: a link (connecting rod);
1321: a contact surface;
15: accessing a channel;
151: a hose;
152: a valve;
17: an identifier;
171: a first warning area;
172: a second warning area;
173: a normal region;
2: a drainage device;
21: a drainage tube;
22: a liquid storage cavity;
23: a deformable chamber;
24: a filter structure;
25: a voltage stabilizing structure;
251: an elastic member;
252: a linkage member;
26: accessing a channel;
261: a valve;
27: an identifier;
271: a first warning area;
272: a second warning area;
273: a normal region.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.
Bearing as the background art part, the constant pressure control operation is inconvenient for the traditional trachea cannula, and the air bag used in the existing clinical practice does not have the pressure monitoring function, so that the problems of air outflow, tube falling and the like in the air bag are easily caused in the process of measuring the pressure by the external pressure detection meter of the air bag, and the health of a patient is threatened.
In view of the above technical problems, a medical constant pressure air bag has been proposed in the industry, however, such an air bag does not have an automatic pressure relief/compensation function, so that the pressure in the air bag cannot be effectively kept constant.
In view of the above, the first embodiment of the present invention provides a pressure stabilizer, which can be used with the endotracheal tube to solve the above technical problems. It should be noted that the pressure stabilizing device of the present embodiment is not limited to be used in cooperation with an endotracheal tube, and can also be used in cooperation with various other medical devices that require constant pressure, such as a pressure dressing bag.
Referring to fig. 1 to 4, schematic diagrams of different state embodiments of the voltage stabilizing device according to the first embodiment and the second embodiment of the present application are shown.
As shown in the drawings, the pressure stabilizing device 1 of the present embodiment mainly includes a deformable chamber 11 and a pressure stabilizing structure 13. Wherein, the cavity pressure meeting the preset pressure intensity range is formed in the deformable cavity 11, and the deformable cavity 11 can be communicated with an external constant pressure device.
Alternatively, the external constant pressure device may be, for example, an endotracheal tube, a pressure dressing, a balloon cover, etc., but not limited thereto, and may be various other medical devices requiring constant pressure.
Optionally, the deformable chamber 11 is a bladder 111 (see fig. 1 and 2).
Alternatively, the deformable chamber 11 may be a piston cavity 112 (refer to fig. 3 and 4). In the present embodiment, the piston chamber 112 is, for example, a syringe structure.
In this embodiment, the preset pressure range may be adjusted according to the actual constant pressure requirement of the external constant pressure device, and may be a positive pressure or a negative pressure.
Optionally, the pressure stabilizer 1 further includes an access channel 15, which is communicated with the deformable chamber 11 and is used for providing a gas channel to fill the deformable chamber 11 with gas or to extract gas from the deformable chamber 11, so as to adjust the chamber pressure formed in the deformable chamber 11, so that the chamber pressure meets the preset pressure range.
For example, an inflation/deflation device (not shown) may be externally connected to the access channel 15 to inject gas or liquid into the deformable chamber 11 via the access channel 15, so that a positive chamber pressure is formed within the deformable chamber 11, or the gas or liquid within the deformable chamber 11 may be externally connected to the inflation/deflation device via the inflation/access channel 15, so that a negative chamber pressure is formed within the deformable chamber 11.
In one embodiment, the inflation/deflation device connected to the access passage 15 may be an inflator/pump to achieve automatic inflation/deflation operation; in another embodiment, the inflation/deflation device connected to the access channel 15 may also be an infusion port to allow manual inflation/deflation. It should be noted that the inflation/evacuation device is not limited to the above list, and may be designed in other configurations.
Optionally, the pressure stabilizer 1 further comprises a three-way valve 12 for providing communication between the deformable chamber 11, the access passage 15 and an external constant pressure device.
In this embodiment, the access channel 15 may comprise a hose 151, one end of the hose 151 being in communication with the three-way valve 12, and the other end of the hose 152 being connectable, for example, to a syringe (not shown) for performing an air injection/suction operation on the deformable chamber 11 through the hose 151 by means of the syringe.
Preferably, the access channel 15 further comprises a valve 152 for opening or closing the internal passage of the hose 151 to facilitate the gas injection/evacuation operation of the deformable chamber 11, preventing gas leakage problems.
Optionally, the pressure stabilizing structure 13 includes an elastic member 131 for providing an elastic force to the deformable chamber 11.
In this embodiment, the deformable chamber 11 is deformed by the simultaneous action of the chamber pressure and the elastic force until the chamber pressure and the elastic force reach a balance, so that the chamber pressure formed in the deformable chamber 11 is maintained within a predetermined pressure range.
In an embodiment, a positive pressure chamber pressure may be formed in the deformable chamber 11, in which case the elastic member 131 is configured to provide an elastic pushing force corresponding to a predetermined pressure range to the deformable chamber 11, so that the deformable chamber 11 deforms toward a trend away from the elastic member 131.
When the current cavity pressure in the deformable cavity 11 is smaller than the preset pressure range, the elastic pushing force provided by the elastic member 131 is larger than the cavity pressure of the deformable cavity 11, so that the deformable cavity 11 is subjected to the elastic pushing force to generate contraction deformation, and the cavity pressure in the deformable cavity 11 gradually rises until the cavity pressure in the deformable cavity 11 and the elastic pushing force reach balance again, thereby raising the cavity pressure level in the deformable cavity 11 to the preset pressure range.
When the current cavity pressure in the deformable cavity 11 is greater than the preset pressure range, the elastic pushing force provided by the elastic member 131 is smaller than the cavity pressure of the deformable cavity 11, so that the deformable cavity 11 is expanded and deformed under the action of the cavity pressure (positive pressure), and the cavity pressure in the deformable cavity 11 is gradually reduced until the cavity pressure in the deformable cavity 11 and the elastic pushing force are balanced again, thereby reducing the cavity pressure level in the deformable cavity 11 to the preset pressure range.
In an embodiment, a negative pressure may be formed in the deformable chamber 11, in which case the elastic member 131 is used to provide an elastic traction force corresponding to a predetermined pressure range to the deformable chamber 11, so that the deformable chamber 11 deforms toward a trend of approaching the elastic member 131.
When the current cavity pressure in the deformable cavity 11 is smaller than the preset pressure range, the elastic traction force provided by the elastic element 131 is smaller than the cavity pressure in the deformable cavity 11, so that the deformable cavity 11 is subjected to the cavity pressure (negative pressure) to generate shrinkage deformation, and the cavity pressure in the deformable cavity 11 gradually rises until the cavity pressure in the deformable cavity 11 and the elastic traction force are balanced again, thereby reducing the cavity pressure level in the deformable cavity 11 to the preset pressure range.
When the current pressure in the deformable chamber 11 is greater than the preset pressure range, the elastic traction force provided by the elastic element 131 is greater than the pressure in the deformable chamber 11, so that the deformable chamber 11 is subjected to the elastic traction force to generate expansion deformation, and the pressure in the deformable chamber 11 is gradually reduced until the pressure in the deformable chamber 11 and the elastic traction force reach balance again, thereby reducing the pressure level in the deformable chamber 11 to the preset pressure range.
In this embodiment, the elastic member 131 may include a predetermined number of spring elements, wherein the predetermined number of spring elements may be determined according to a predetermined pressure range, so that the elastic force provided by the elastic member 131 is adapted to the predetermined pressure range. However, the present application is not limited thereto, and the magnitude of the elastic force provided by the elastic member 131 may be adjusted by other methods.
Optionally, each spring element is a constant force spring.
Optionally, the pressure stabilizing structure 13 further includes a link 132, and the elastic member 131 applies an elastic force to the deformable chamber 11 via the link 132.
In the embodiment, the linkage 132 is a link 132, but the invention is not limited thereto, and other linkage configurations may be adopted.
Optionally, the linkage 132 has a contact surface 1321 that is in substantial contact with the deformable chamber 11.
Optionally, the cross-sectional area of the contact surface 1321 between the linkage 132 and the deformable chamber 11 may be substantially the same as the cross-sectional area of the deformable chamber 11, but not limited thereto, and the cross-sectional area of the contact surface 1321 between the linkage 132 and the deformable chamber 11 may also be determined according to a preset pressure range, so that the technical effect of accurately controlling the cavity pressure of the deformable chamber 11 is achieved by adjusting the size of the cross-sectional area of the contact surface 1321.
Optionally, the pressure stabilizing device 1 further includes an identifier 17 for identifying a comparison result of the current chamber pressure in the deformable chamber 11 compared to a preset pressure range.
In the present embodiment, the relative position of the linking member 132 (connecting rod) with respect to the body structure of the pressure stabilizer 1 can be determined to determine what state the current cavity pressure in the deformable chamber 11 is, for example, the indicator 17 may include a first warning region 171, a second warning region 172, and a normal region 173 disposed on the linking member 132 (refer to fig. 1 and fig. 2) or the body structure of the pressure stabilizer 1 (refer to fig. 3 and fig. 4), wherein the first warning region 171 and the second warning region 172 are used to respectively identify the comparison result of the current cavity pressure in the deformable chamber 11 being higher or lower than the preset pressure range; the normal region 173 is used to identify a comparison result that the current chamber pressure in the deformable chamber 11 is within a preset pressure range.
In the present application, when the relative position of the linking member 132 with respect to the main body structure of the voltage stabilizer 1 is found to be in the first warning region 171 or the second warning region 172 for a long time, the linking member can be restored to the normal region 173 by manually supplementing or relieving pressure.
In summary, the pressure stabilizing device provided by this embodiment is provided with the deformable chamber having the chamber pressure and the pressure stabilizing structure for applying the acting force to the deformable chamber, so that the deformable chamber is deformed under the simultaneous action of the chamber pressure and the acting force, and the pressure compensation or pressure relief processing of the deformable chamber is automatically realized, so that the chamber pressure of the deformable chamber is always kept within the preset pressure range, and the external constant pressure device communicated with the deformable chamber can be maintained in the constant pressure environment. Borrow this, this application accessible passive mode provides the warning when constant voltage operation environment and pressure change to a series of external constant voltage devices such as trachea cannula, laryngeal mask, gasbag cover in real time and reminds, can improve relevant medical instrument's operation convenience and security.
Moreover, this application can be adjusted the effort size that steady voltage structure exerted and/or the cross-section size of the contact surface between linkage and the deformable cavity in a flexible way to be suitable for the external constant voltage device that has different constant voltage demands, have extensive range of application.
Fig. 5 and 6 show different state embodiments of the drainage device 2 according to the second embodiment of the present application.
As shown in the figure, the drainage device 2 of the present embodiment mainly includes a drainage tube 21, a liquid storage cavity 22 communicated with the drainage tube 21, a deformable cavity 23, a filtering structure 24, and a pressure stabilizing structure 25.
Specifically, a cavity pressure satisfying a preset negative pressure range is formed in the deformable cavity 23.
Optionally, the drainage device 2 further comprises an access channel 26, which communicates with the deformable chamber 23, for providing a gas channel to extract gas in the deformable chamber 23, so that the cavity pressure formed in the deformable chamber 23 satisfies the preset negative pressure range.
Preferably, the access channel 26 further comprises a valve 261 for opening or closing the access channel 26 to facilitate performing the gas injection/evacuation operation of the deformable chamber 23 to prevent gas leakage problems.
The filtering structure 24 is disposed between the reservoir chamber 22 and the deformable chamber 23 for passing gas molecules and stopping liquid molecules.
In the present embodiment, the filtering structure 24 is, for example, a gas-permeable, liquid-impermeable molecular sieve.
A pressure stabilizing structure 25 is provided for applying a traction force to the deformable chamber 23.
Specifically, the deformable chamber 23 can be deformed under the simultaneous action of chamber pressure and traction force, so that the chamber pressure is kept within a preset negative pressure range, thereby controlling the drainage tube 21 to introduce drainage liquid into the liquid storage chamber 22 at a constant pressure.
Optionally, the pressure stabilizing structure 25 includes a resilient member 251 for providing resilient traction to the deformable chamber 23.
Wherein, the deformable chamber 23 can be expanded and deformed under the action of the elastic traction force of the elastic member 251, or the deformable chamber 23 can be contracted and deformed under the action of the chamber pressure.
In this embodiment, the deformable chamber 23 can be deformed by the simultaneous action of the chamber pressure and the elastic force of the elastic member 131 until the chamber pressure and the elastic force in the deformable chamber 23 reach a balance.
Optionally, the pressure stabilizing structure 2 further includes a linkage member 252 respectively connecting the elastic member 251 and the deformable chamber 23, so that the elastic member 251 applies elastic traction force to the deformable chamber 23 via the linkage member 252.
Optionally, the drainage device 2 further comprises an identifier 27 for identifying a comparison result of the current cavity pressure in the deformable cavity 23 compared to the preset negative pressure range.
In this embodiment, the indicator 27 may also include a first warning area 271, a second warning area 272, and a normal area 273, wherein the first warning area 271 and the second warning area 272 are used to respectively identify a comparison result that the current cavity pressure in the deformable chamber 23 is higher or lower than a preset negative pressure range; the normal region 273 is used to identify the comparison result that the current cavity pressure in the deformable cavity 23 is within the preset negative pressure range.
In conclusion, the drainage device of the embodiment utilizes the design of the pressure stabilizing structure and the deformable cavity to allow the deformable cavity to deform under the action of the cavity pressure and the traction force, so that the cavity pressure in the deformable cavity is always kept in the preset negative pressure range, the drainage tube is controlled to conduct drainage into the liquid storage cavity at constant pressure, and the stability and the safety of the drainage operation are improved.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (15)
1. A voltage stabilization device, comprising:
the deformable chamber is internally provided with chamber pressure meeting a preset pressure range and is communicated with an external constant pressure device; and
a pressure stabilizing structure for applying an acting force to the deformable chamber; wherein,
the deformable chamber can be deformed under the simultaneous action of the chamber pressure and the acting force, so that the chamber pressure is kept within the preset pressure range, and the external constant pressure device is maintained in a constant pressure environment.
2. The pressure stabilizer according to claim 1, wherein the deformable chamber comprises a bladder or a piston cavity.
3. The voltage stabilization apparatus according to claim 2, further comprising:
and the access channel is communicated with the deformable chamber and is used for filling gas or liquid into the deformable chamber through the access channel or extracting the gas or liquid in the deformable chamber through the access channel so as to adjust the cavity pressure formed in the deformable chamber, so that the cavity pressure meets the preset pressure range.
4. The voltage stabilization apparatus according to claim 3, wherein the voltage stabilization structure comprises:
an elastic member for providing an elastic force to the deformable chamber;
the deformable chamber is deformed under the simultaneous action of the chamber pressure and the elastic acting force until the chamber pressure and the elastic acting force reach balance, so that the chamber pressure formed in the deformable chamber is maintained in the preset pressure range.
5. The pressure stabilizer according to claim 4, wherein the chamber pressure formed in the deformable chamber is a positive pressure, and the elastic member is configured to provide the elastic resisting force corresponding to the preset pressure range to the deformable chamber; and wherein the one or more of the one or more,
when the cavity pressure is smaller than the preset pressure intensity range, the elastic abutting force provided by the elastic piece is larger than the cavity pressure, so that the deformable cavity is contracted and deformed under the action of the elastic abutting force, and the cavity pressure is gradually increased until the cavity pressure and the elastic abutting force are balanced;
when the cavity pressure is larger than the preset pressure range, the elastic pushing force provided by the elastic piece is smaller than the cavity pressure, so that the deformable cavity is expanded and deformed under the action of the cavity pressure, the cavity pressure is gradually reduced, and the cavity pressure and the elastic pushing force are balanced.
6. The pressure stabilizer according to claim 4, wherein the chamber pressure formed in the deformable chamber is a negative pressure, and the elastic member is configured to provide an elastic traction force corresponding to the preset pressure range to the deformable chamber; and wherein the one or more of the one or more,
when the cavity pressure is smaller than the preset pressure range, the elastic traction force provided by the elastic piece is smaller than the cavity pressure, so that the deformable cavity is subjected to contraction deformation under the action of the cavity pressure to gradually raise the cavity pressure until the cavity pressure and the elastic traction force are balanced;
when the pressure in the cavity is larger than the preset pressure range, the elastic traction force provided by the elastic part is larger than the cavity pressure, so that the deformable cavity is expanded and deformed under the action of the elastic traction force to gradually reduce the cavity pressure until the cavity pressure and the elastic traction force are balanced.
7. A pressure stabilizer according to claim 6, characterized in that the resilient member comprises a preset number of spring elements, which is determined according to the preset pressure range, so that the resilient force provided by the resilient member is adapted to the preset pressure range.
8. The pressure stabilizer according to claim 7, characterized in that the spring element is a constant force spring.
9. The voltage stabilization apparatus according to claim 4, wherein the voltage stabilization structure further comprises:
a linkage via which the resilient member applies the resilient force to the deformable chamber; wherein,
the linkage member has a contact surface that makes substantial contact with the deformable chamber.
10. The voltage stabilizer according to claim 9,
the cross-sectional area of the contact surface is substantially the same as the cross-sectional area of the deformable chamber; or,
the cross-sectional area of the contact surface is determined according to the preset pressure range.
11. The pressure stabilizer according to claim 9, characterized in that the pressure stabilizer further comprises an identifier for identifying a comparison result of the current chamber pressure in the deformable chamber compared to the preset pressure range.
12. The pressure stabilizing device of claim 1, wherein said external constant pressure device comprises at least one of an endotracheal tube, a laryngeal mask, a compression wrap, a balloon cover, and a drainage bag.
13. A drainage device, comprising:
a drainage tube;
the liquid storage cavity is communicated with the drainage tube;
a deformable chamber in which a chamber pressure satisfying a preset negative pressure range is formed;
the filtering structure is arranged between the liquid storage cavity and the deformable cavity and is used for passing through gas molecules and stopping the liquid molecules; and
a pressure stabilizing structure for applying a traction force to the deformable chamber; wherein,
the deformable cavity is deformed under the simultaneous action of the cavity pressure and the traction force, so that the cavity pressure is kept within the preset negative pressure range, and the drainage tube is controlled to conduct drainage liquid into the liquid storage cavity at constant pressure.
14. The drainage device of claim 13, further comprising:
and the access channel is communicated with the deformable chamber and is used for extracting gas in the deformable chamber so as to enable the cavity pressure formed in the deformable chamber to meet the preset negative pressure range.
15. The drainage device of claim 14, wherein the pressure stabilizing structure comprises:
an elastic member for providing elastic traction to the deformable chamber;
wherein, the deformable chamber can be expanded and deformed under the action of the elastic traction force of the elastic element; or the deformable chamber can be subjected to the cavity pressure to generate shrinkage deformation;
and the deformable chamber is deformed under the simultaneous action of the cavity pressure and the elastic traction force until the cavity pressure and the elastic traction force reach balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120828734.4U CN215426407U (en) | 2021-04-19 | 2021-04-19 | Pressure stabilizer and drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120828734.4U CN215426407U (en) | 2021-04-19 | 2021-04-19 | Pressure stabilizer and drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215426407U true CN215426407U (en) | 2022-01-07 |
Family
ID=79705214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120828734.4U Active CN215426407U (en) | 2021-04-19 | 2021-04-19 | Pressure stabilizer and drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215426407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115212359A (en) * | 2021-04-19 | 2022-10-21 | 上海康路联医疗科技有限公司 | Pressure stabilizer and drainage device |
-
2021
- 2021-04-19 CN CN202120828734.4U patent/CN215426407U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115212359A (en) * | 2021-04-19 | 2022-10-21 | 上海康路联医疗科技有限公司 | Pressure stabilizer and drainage device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20250025620A1 (en) | Dynamic Pressure Response and Catheter Occlusion System | |
| US10369312B2 (en) | Low maintenance endotracheal tube device and method for preventing ventilator associated pneumonia and tracheal ischemia | |
| CN111068156B (en) | Air bag pressure adjusting system for respirator and using method thereof | |
| CN107889465B (en) | Device for controlling pressure of tracheal cuff and positive pressure respirator | |
| Carroll et al. | Performance characteristics of tracheal cuffs | |
| IL173391A (en) | Probe for medical use | |
| JP2019508210A (en) | Catheter inflatable cuff pressure stabilizer | |
| US11027083B2 (en) | Pressure regulator for endotracheal tube cuff, breathing system comprising such a regulator and container comprising a variable volume chamber for such a regulator | |
| US4248222A (en) | Endotracheal tube having a relief valve | |
| CN108578863A (en) | A kind of cuff pressure intelligence control system | |
| WO2023137936A1 (en) | Ventilation catheter capable of automatically regulating pressure in sealed balloon, and connecting device | |
| CN215426407U (en) | Pressure stabilizer and drainage device | |
| KR20250039970A (en) | Systems and methods for intra-abdominal tube cuff assembly | |
| CN104274154B (en) | A kind of medical real-time pressure monitor controller | |
| CN211050601U (en) | Inflatable integrated tracheal catheter capable of measuring pressure | |
| CN115212359A (en) | Pressure stabilizer and drainage device | |
| CN203280875U (en) | Trachea humidifying pump | |
| CN219090693U (en) | A cuff pressure adjustment measuring device after tracheal intubation | |
| CN219126516U (en) | intrauterine hemostat | |
| CN217339657U (en) | artificial ventilation device | |
| CN215606007U (en) | Nasal cavity hemostasis device | |
| CN216022369U (en) | Drainage device | |
| CN107158538A (en) | Endotracheal intubation that can automatically adjust the filling degree of the air bag | |
| CN215875856U (en) | Closed-loop tracheal catheter cuff pressure monitoring and regulating system | |
| CN113081138A (en) | Nasal cavity hemostasis device and operation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Kanglulian (Wuxi) Medical Technology Co.,Ltd. Assignor: Shanghai kanglulian Medical Technology Co.,Ltd. Contract record no.: X2023990000690 Denomination of utility model: Stabilizing device and drainage device Granted publication date: 20220107 License type: Common License Record date: 20230706 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Kanglulian (Wuxi) Medical Technology Co.,Ltd. Assignor: Shanghai kanglulian Medical Technology Co.,Ltd. Contract record no.: X2023990000690 Denomination of utility model: Voltage stabilizing device and drainage device Granted publication date: 20220107 License type: Common License Record date: 20230706 |