CN217338723U - Negative pressure suction device - Google Patents
Negative pressure suction device Download PDFInfo
- Publication number
- CN217338723U CN217338723U CN202220239827.8U CN202220239827U CN217338723U CN 217338723 U CN217338723 U CN 217338723U CN 202220239827 U CN202220239827 U CN 202220239827U CN 217338723 U CN217338723 U CN 217338723U
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- Prior art keywords
- negative pressure
- suction
- generator
- suction device
- flow
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- 208000007536 Thrombosis Diseases 0.000 claims abstract description 32
- 230000001105 regulatory effect Effects 0.000 claims description 27
- 230000001276 controlling effect Effects 0.000 claims description 6
- 230000000740 bleeding effect Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 description 7
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 208000005189 Embolism Diseases 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 208000019553 vascular disease Diseases 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010008092 Cerebral artery thrombosis Diseases 0.000 description 1
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000010378 Pulmonary Embolism Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000036765 blood level Effects 0.000 description 1
- 230000002612 cardiopulmonary effect Effects 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
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Abstract
The embodiment of the utility model provides a negative pressure suction device. The device includes: a negative pressure generator; the negative pressure generator is provided with a suction component connected with the negative pressure generator; the suction assembly is used for sucking and storing thrombus; the device also comprises a negative pressure adjusting assembly connected with the negative pressure generator, wherein the negative pressure adjusting assembly is used for setting suction negative pressure and can open a negative pressure suction channel of the negative pressure suction device when the negative pressure generated by the negative pressure generator reaches a set pressure value. Thereby not only being beneficial to reducing the bleeding amount, but also improving the suction effect.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a negative pressure suction device for matching with a suction catheter and the like to realize thrombus suction.
Background
Vascular disease has become the first fatal disease in our country, and vascular embolism has become a major factor in vascular disease. Especially, the total annual new disease rate of patients with cerebral arterial thrombosis, pulmonary embolism and lower limb venous embolism is over 500 ten thousand. Negative pressure aspiration of thrombus is a common thrombus removal method in clinic. The needle cylinder is often used for sucking thrombus, but has the problems of large bleeding amount and inconvenient operation. The negative pressure suction pump can provide continuous negative pressure for suction, but has the problems of large bleeding amount and poor suction effect.
It should be understood that the above description is only an exemplary explanation of the related art and does not represent prior art pertaining to the present disclosure.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a negative pressure suction device not only is favorable to reducing the amount of bleeding, can improve the suction effect moreover.
In order to solve the technical problem, an embodiment of the utility model provides a negative pressure suction device, include: a negative pressure generator;
the negative pressure generator is provided with a suction assembly connected with the negative pressure generator; the aspiration assembly is used for aspirating and storing thrombus;
the device also comprises a negative pressure adjusting assembly connected with the negative pressure generator, wherein the negative pressure adjusting assembly is used for setting suction negative pressure and can open a negative pressure suction channel of the negative pressure suction device when the negative pressure generated by the negative pressure generator reaches a set pressure value.
Additionally, the suction assembly includes:
the first negative pressure bottle and the second negative pressure bottle are arranged on the negative pressure generator; the second negative pressure bottle is connected with the negative pressure generator through the first suction pipe, the second negative pressure bottle is connected with the first negative pressure bottle through the second suction pipe, and the first negative pressure bottle is provided with a third suction pipe used for being connected with a suction catheter.
In addition, the negative pressure regulating assembly includes: a negative pressure regulator and a negative pressure gauge;
the negative pressure regulator is connected with the negative pressure generator; the negative pressure gauge is used for indicating suction negative pressure.
In addition, the negative pressure suction device further includes:
and the pulse negative pressure component is connected with the negative pressure generator and is used for controlling the negative pressure generator to provide pulse type suction negative pressure.
In addition, the negative pressure generator includes a motor; the pulsating negative pressure assembly comprises: the motor control board and the pulse switch are connected; the motor control board controls the rotating speed of the motor to enable the negative pressure generator to generate pulse type suction negative pressure.
In addition, the negative pressure suction device further includes:
the flow regulating assembly is connected with the negative pressure generator;
the flow regulating assembly is used for regulating the suction flow of the negative pressure suction device.
Additionally, the flow regulating assembly includes: the flow control valve, the flow regulator and the flow meter; the flow regulating valve and the flow meter are connected with the negative pressure generator, and the flow regulator is connected with the flow regulating valve.
In addition, a thrombus filter screen is also arranged in the first negative pressure bottle.
In addition, an air filter is arranged on the first suction pipe.
In addition, an anti-overflow device is also arranged in the second negative pressure bottle.
According to the above technical scheme, the utility model discloses following advantage and positive effect have at least:
the utility model discloses negative pressure suction device can make negative pressure generator open negative pressure suction passageway when suction negative pressure reaches the settlement pressure value through negative pressure adjusting part to can avoid rising to the settlement pressure value in negative pressure and carry out the negative pressure suction during, be favorable to reducing the bleeding volume, still can set up suction negative pressure value according to the suction needs simultaneously, thereby be favorable to reaching better suction effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly introduced below, it should be understood that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a negative pressure suction device provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of the negative pressure suction device provided in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following describes each embodiment of the present invention in detail with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the invention. However, the technical solution claimed in the present invention can be realized without these technical details and various changes and modifications based on the following embodiments.
In the description of the present application, various terms indicating orientation or positional relationship such as "center", "upper", "lower", "inner", "outer", etc. are used for convenience of description only based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present application.
Referring to fig. 1-2, an embodiment of the present invention provides a negative pressure suction device, which is suitable for being connected to a suction catheter and the like, and provides a suction negative pressure thereto to suck thrombus or embolus at a blocked portion of a blood vessel out of a body, thereby relieving blood vessel blockage, improving a blood circulation system of a human body, and avoiding cardiopulmonary dysfunction, myocardial infarction, cerebral apoplexy, and the like caused by blood vessel blockage. As shown in fig. 1, the negative pressure suction device of the present embodiment mainly includes: negative pressure generator 1, suction assembly and negative pressure regulating assembly.
The negative pressure generator 1 is used for generating suction negative pressure capable of meeting the requirement of thrombus suction. The negative pressure generator 1 can be selected from components with small volume so as to be convenient for integrating with the suction assembly. The core structure of the negative pressure generator 1 may be a diaphragm pump or a piston pump, etc., and is not particularly limited herein.
The negative pressure generator 1 is provided with a suction component connected with the negative pressure generator 1. The suction assembly is used for sucking and storing thrombus, and is connected with the negative pressure generator 1 and can be connected with a suction catheter (not shown) so as to form a negative pressure suction channel for sucking thrombus. Meanwhile, the suction assembly can also store thrombus, blood and the like sucked out.
The negative pressure adjusting assembly is connected with the negative pressure generator 1 and is used for setting suction negative pressure and opening a negative pressure suction channel of the negative pressure suction device when the negative pressure generated by the negative pressure generator 1 reaches a set pressure value. Can set up the suction negative pressure value through negative pressure adjusting part promptly, negative pressure suction device during operation, when the suction negative pressure reaches the suction negative pressure value that sets up, the suction channel is opened to can avoid the negative pressure value to increase the thrombus suction during the preset pressure value from 0, avoid low negative pressure suction promptly, ensure that the suction process utilizes higher negative pressure to aspirate all the time, when reaching the suction effect of preferred, still be favorable to reducing the amount of bleeding.
As shown in fig. 2, the suction assembly may include: a first negative pressure bottle 21 and a second negative pressure bottle 22 provided on the negative pressure generator 1. The negative pressure generator 1 may have a housing, and a first negative pressure bottle 21 and a second negative pressure bottle accommodating chamber may be formed on the housing. The second negative pressure bottle 22 is connected with the negative pressure generator 1 through a first suction pipe 23, the second negative pressure bottle 22 is connected with the first negative pressure bottle 21 through a second suction pipe 24, and a third suction pipe 25 for connecting a suction catheter is arranged on the first negative pressure bottle 21. The negative pressure generator 1, the first suction pipe 23, the second negative pressure bottle 22, the second suction pipe 24, the first negative pressure bottle 21, and the third suction pipe 25 form a negative pressure suction passage of the negative pressure suction device, so that suction negative pressure can be supplied to the suction duct connected to the third suction pipe 25. Meanwhile, the first negative pressure bottle 21 and the second negative pressure bottle 22 can also be used for collecting and storing the aspirated thrombus and blood. It is understood that the number of the negative pressure bottles in the suction assembly may also be 1 or more, and is not particularly limited herein.
Optionally, a thrombus filter 26 may be further disposed in the first negative pressure bottle 21. The thrombus filter 26 may be disposed parallel to the bottom surface of the first negative pressure bottle 21, and the distance between the thrombus filter and the bottom surface of the first negative pressure bottle 21 may be greater than the distance between the thrombus filter and the opening of the first negative pressure bottle 21, so that more blood may be conveniently collected and stored. By the filtering of the thrombus filter 26, the thrombus is caught above the thrombus filter 26 and remains in the first negative pressure bottle 21, and the blood is sucked into the second negative pressure bottle 22, thereby separating the thrombus from the blood.
Optionally, an overflow preventing device 27 may be further disposed in the second negative pressure bottle 22. The overflow preventing means 27 is used to cut off the second negative pressure bottle 22 and the first suction tube 23 when the blood level in the second negative pressure bottle 22 reaches a certain height, thereby preventing the blood in the second negative pressure bottle 22 from entering the negative pressure generator through the first suction tube 23. The anti-overflow device can be realized by utilizing the buoyancy principle, and the embodiment does not limit the specific structure of the anti-overflow device.
Optionally, an air filter 28 may also be provided on the first suction duct 23. The air filter 28 is, for example, an air filter screen, and can filter out harmful substances such as impurities and bacteria in the air. The present embodiment is not particularly limited with respect to the structure of the air filter 28.
It is to be noted that the connections between the various structures in the suction module are required to meet good air tightness requirements. It will be appreciated that the suction assembly may be removably connected to the negative pressure generator 1. So that a new suction assembly can be exchanged when the first 21 and second 22 suction bottles are full.
Optionally, the negative pressure regulating assembly may comprise: a negative pressure regulator 31 and a negative pressure gauge 32. The negative pressure regulator 31 is connected to the negative pressure generator 1. The main body of the negative pressure regulator 31 may be provided in the housing of the negative pressure generator 1, and the negative pressure gauge 32 may be provided on the housing. The negative pressure regulator 31 can regulate the negative pressure value provided by the negative pressure generator within a certain range. The negative pressure regulator 31 may include a pressure relief valve, and the pressure relief valve may be opened when the negative pressure value provided by the negative pressure generator 1 reaches a preset pressure value, or may be in a closed state. The negative pressure regulator 31 may employ techniques known in the art and will not be described in detail herein. The negative pressure gauge can indicate the negative pressure value, thereby being convenient for doctors to judge the suction negative pressure.
The negative pressure suction device may further include: and the pulse negative pressure component is connected with the negative pressure generator 1 and is used for controlling the negative pressure generator 1 to provide pulse negative pressure. Specifically, the negative pressure generator 1 may include a motor (not shown), and the pulse negative pressure assembly may include: an associated motor control board (not shown) and a pulse switch 41. The motor control board controls the rotating speed of the motor to enable the negative pressure generator 1 to generate pulse type suction negative pressure. The pulse switch 41 may be provided on the housing of the negative pressure generator 1. The motor control board may be provided in the housing of the negative pressure generator 1. The pulsed pumping mode as well as the continuous pumping mode can be selected by the pulse switch 41. The negative pressure suction device can normally work in a continuous suction mode, when thrombus is difficult to suck, the pulse switch can be turned on to enable the pulse suction mode, and the pulse suction mode can better suck the thrombus through intermittent suction and can reduce the amount of bleeding. The principle of realizing the pulse suction mode by controlling the motor speed is as follows: and controlling the motor to rapidly accelerate to a set rotating speed and keep the rotating speed within a preset time length, then controlling the motor to rapidly decelerate to the set rotating speed and keep the rotating speed for a certain time length, and repeating the motor rotating speed control mode, so that the negative pressure generator generates pulse suction negative pressure. The motor speed may be controlled to achieve the pulsed pumping mode using techniques known in the art and will not be described in further detail herein.
Optionally, the negative pressure suction device may further include: and the flow regulating assembly is connected with the negative pressure generator 1. The flow regulating assembly is used for regulating the suction flow of the negative pressure suction device. Under the unchangeable condition of suction negative pressure value promptly, the adjustable suction flow of flow control subassembly to can realize the suction mode of high negative pressure and low discharge, be favorable to taking out more stubborn thrombus. Specifically, the flow regulating assembly may include: a flow rate regulating valve (not shown), a flow rate regulator 51, and a flow rate meter 52. The flow regulator 51 is connected to a flow regulating valve, thereby constituting a flow regulating mechanism for regulating the magnitude of the suction flow. Wherein, the flow regulating valve can be arranged in the negative pressure generator shell, and the flow regulator can be arranged on the negative pressure generator shell. The flow regulating valve and the flow meter 52 are connected with the negative pressure generator 1, and the flow meter 52 can be arranged on the negative pressure generator shell so as to indicate the suction flow. The flow regulating mechanism may be implemented in a manner known in the art and is not particularly limited herein. The flow size of the suction process can be adjusted through the flow adjusting assembly, so that the suction modes of high negative pressure, large flow, high negative pressure, small flow and the like can be flexibly realized according to suction requirements, and the suction efficiency and the suction effect are further improved.
The negative pressure suction device can also comprise a power switch 6 arranged on the shell of the negative pressure generator 1, so as to control the starting and stopping of suction.
Referring to fig. 1, the specific operation steps of the negative pressure suction device of the present embodiment are as follows:
the negative pressure regulator 31 is first adjusted to a preset position and then the power switch 6 is turned on. When the negative pressure reaches the preset pressure value, the pressure release valve is automatically opened, and the negative pressure suction device can be used for thrombus extraction at the moment. The flow regulator 51 can be adjusted to adjust the flow rate of thrombus extraction during thrombus extraction. If thrombus extraction is difficult, the maximum suction negative pressure can be adjusted by the negative pressure regulator 31, and the pulse switch 41 can be opened to extract thrombus by an intermittent extraction mode.
Based on the above technical scheme the utility model discloses at least, following advantage and positive effect have:
the utility model discloses negative pressure suction device can make negative pressure generator open the negative pressure suction passageway when suction negative pressure reaches the set pressure value through the negative pressure adjusting part to can avoid carrying out the negative pressure suction during negative pressure risees to the set pressure value, be favorable to reducing the amount of bleeding, still can set up suction negative pressure value according to the suction needs simultaneously, thereby be favorable to reaching better suction effect.
It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.
Claims (10)
1. A negative pressure suction device, comprising:
a negative pressure generator;
the negative pressure generator is provided with a suction assembly connected with the negative pressure generator; the aspiration assembly is used for aspirating and storing thrombus;
the device also comprises a negative pressure adjusting assembly connected with the negative pressure generator, wherein the negative pressure adjusting assembly is used for setting suction negative pressure and can open a negative pressure suction channel of the negative pressure suction device when the negative pressure generated by the negative pressure generator reaches a set pressure value.
2. The negative pressure suction device as claimed in claim 1, wherein the suction assembly comprises:
the first negative pressure bottle and the second negative pressure bottle are arranged on the negative pressure generator; the second negative pressure bottle is connected with the negative pressure generator through the first suction pipe, the second negative pressure bottle is connected with the first negative pressure bottle through the second suction pipe, and the first negative pressure bottle is provided with a third suction pipe used for being connected with a suction catheter.
3. The negative pressure suction device as claimed in claim 1, wherein the negative pressure regulating assembly comprises: a negative pressure regulator and a negative pressure gauge;
the negative pressure regulator is connected with the negative pressure generator; the negative pressure gauge is used for indicating suction negative pressure.
4. The negative pressure suction device as claimed in claim 1, further comprising:
and the pulse negative pressure assembly is connected with the negative pressure generator and is used for controlling the negative pressure generator to provide pulse type suction negative pressure.
5. The negative pressure suction device as claimed in claim 4, wherein the negative pressure generator comprises a motor; the pulsating negative pressure assembly comprises: the motor control board and the pulse switch are connected; the motor control board controls the rotating speed of the motor to enable the negative pressure generator to generate pulse type suction negative pressure.
6. The negative pressure suction device as claimed in claim 1, further comprising:
the flow regulating assembly is connected with the negative pressure generator;
the flow regulating assembly is used for regulating the suction flow of the negative pressure suction device.
7. The negative pressure suction device as claimed in claim 6, wherein the flow regulating assembly comprises: the flow control device comprises a flow control valve, a flow regulator and a flow meter; the flow regulating valve and the flow meter are both connected with the negative pressure generator, and the flow regulator is connected with the flow regulating valve.
8. The negative pressure suction device as claimed in claim 2, wherein a thrombus screen is further provided in the first negative pressure bottle.
9. The negative pressure suction device as claimed in claim 2, wherein the first suction duct is further provided with an air filter.
10. The negative pressure suction device as claimed in claim 2, wherein an anti-overflow device is further provided in the second negative pressure bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220239827.8U CN217338723U (en) | 2022-01-28 | 2022-01-28 | Negative pressure suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220239827.8U CN217338723U (en) | 2022-01-28 | 2022-01-28 | Negative pressure suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217338723U true CN217338723U (en) | 2022-09-02 |
Family
ID=83044589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220239827.8U Active CN217338723U (en) | 2022-01-28 | 2022-01-28 | Negative pressure suction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217338723U (en) |
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2022
- 2022-01-28 CN CN202220239827.8U patent/CN217338723U/en active Active
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