CN213789147U

CN213789147U - Precision metering negative pressure aspirator

Info

Publication number: CN213789147U
Application number: CN202022096111.0U
Authority: CN
Inventors: 朱丽丽; 谢玉芹; 张翠翠; 温建军
Original assignee: Zigong First Peoples Hospital
Current assignee: Zigong First Peoples Hospital
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-07-27
Anticipated expiration: 2030-09-22

Abstract

The utility model relates to the technical field of medical supplies, in particular to a precise metering negative pressure aspirator, which comprises a negative pressure aspirator and a metering collector which are mutually communicated, wherein a plurality of containing bottles are arranged in the negative pressure aspirator, the negative pressure aspirator is connected with an extension suction tube, the front end of the extension suction tube is provided with a sucker, and the rear end of the extension suction tube is communicated with the containing bottles through a transportation and distribution device; the device also comprises a locking device for controlling the on-off of the extension suction tube and an air bag device for adjusting the air pressure value in the containing bottle; the containing bottle is communicated with the metering collector, and the metering collector is provided with a detector. The utility model can reasonably convey the substance in a relatively sealed environment, and avoid the leakage in midway; meanwhile, the negative pressure device can be prevented from being damaged in an overpressure state, and the working safety and stability of the whole device are improved.

Description

Precision metering negative pressure aspirator

Technical Field

The utility model relates to the technical field of medical supplies, concretely relates to precision measurement negative pressure aspirator.

Background

The negative pressure suction apparatus is a tool which is used for manufacturing a negative pressure space by a certain method, is connected with a suction head and sucks external substances by the suction head so as to finish the effect of negative pressure suction, has wide application in life and work, and has a lot of scenes needing a negative pressure tractor in the medical field.

The negative pressure tractor used clinically generally comprises two flat cylindrical ports for the inlet and outlet of fluid, and in the using process, the drainage fluid is often overflowed due to the action of gravity of the drainage fluid, the loose connection between a drainage tube at an inlet and a negative pressure aspirator or the fact that a cap is not tightly covered at an outlet; meanwhile, although the collecting bottle of the negative pressure tractor is provided with the metering mark, the material of the collecting bottle is adhered with the liquid in the collecting bottle in the using process, so that the collecting bottle cannot be poured thoroughly, and the marked quantity and the actual drainage quantity of the collecting bottle are greatly different.

Therefore, the existing medical vacuum suction apparatus cannot completely achieve the objective and actual vacuum suction purpose, and there is a place to be improved urgently, and the existing medical metering vacuum suction apparatus needs to be improved and optimized to obtain a more reasonable technical scheme, so that the defects in the prior art are overcome.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art mentioned in the above, the utility model provides a precision measurement vacuum aspiration ware, which aims to optimize and improve the structure of the vacuum aspiration ware, so as to facilitate the vacuum aspiration ware to better collect and measure, and improve the effect and precision of vacuum aspiration work.

In order to achieve the above object, the utility model discloses the technical scheme who specifically adopts is:

a precise metering negative pressure aspirator comprises a negative pressure aspirator and a metering collector which are communicated with each other, wherein a plurality of containing bottles are arranged in the negative pressure aspirator, the negative pressure aspirator is connected with an extension suction tube, a sucker is arranged at the front end of the extension suction tube, and the rear end of the extension suction tube is communicated with the containing bottles through a transportation and distribution device; the device also comprises a locking device for controlling the on-off of the extension suction tube and an air bag device for adjusting the air pressure value in the containing bottle; the containing bottle is communicated with the metering collector, and the metering collector is provided with a detector.

In the negative pressure aspirator disclosed by the above, the negative pressure is produced by the negative pressure aspirator, so that the air pressure value in the containing bottle is lower than the external atmospheric pressure, the extending suction tube can suck external substances into the containing bottle under the condition of low pressure or negative pressure, and the sucked substances are shunted to the containing bottle through the transportation and distribution device; when the substances in the containing bottle are required to be completely delivered into the metering collector, the extending suction pipe is blocked by the locking device, the continuous suction of external substances is stopped, and gas is blown into the extending suction pipe and the containing bottle through the air bag device, so that the gas pressure in the containing bottle is higher than the gas pressure in the metering collector, and the substances in the containing bottle are smoothly delivered into the metering collector.

Further, the metering collector is used for collecting and storing the sucked substances and displaying whether the current capacity reaches the maximum capacity, specifically, in order to facilitate the metering collector to realize the above functions, the structure of the metering collector is optimally designed, and the following specific feasible schemes are provided: the metering collector comprises a containing cavity for containing an attractor, and the side wall surface of the containing cavity is provided with contrast scales; the metering collector is also provided with a display. The side wall of the cavity is provided with a position for comparing scales and can be provided with a transparent observation window, so that the material accumulation height in the cavity can be conveniently observed; the measuring collector can also be directly made of transparent materials, and can be directly observed. The display is connected with inductor or camera, and inductor and camera are used for responding to or shoot the material in the measurement collector, learn the degree of piling up of material to demonstrate through the display, it is more directly perceived.

Further, the storage bottle arrangement method disclosed in the above technical solution is optimized, and the following concrete feasible solutions are given: the number of the containing bottles is at least three, and the containing bottles are sequentially communicated in series and then communicated to the metering collector through the dredging pipe.

Still further, when containing bottle quantity is three, through elementary communicating pipe intercommunication between first containing bottle and the second containing bottle, through secondary communicating pipe intercommunication between second containing bottle and the third containing bottle, third containing bottle intercommunication dredging pipe to send the material to the measurement collector through dredging pipe.

Furthermore, the dredging pipe is provided with a control valve for controlling the on-off of the dredging pipe. The significance of the arrangement is that when external substances are sucked into the containing bottle through negative pressure, the extending suction tube is opened through the locking device, the dredging tube is closed through the control valve, and the substances in the metering collector are prevented from entering the containing bottle; when the material in the containing bottle is conveyed to the metering collector through the positive pressure, the extending suction pipe is closed through the locking device, the dredging pipe is opened through the control valve, the material in the containing bottle can be smoothly conveyed to the metering collector, and the backflow leakage of the material from the extending suction pipe is avoided.

Further, the transportation distribution device disclosed in the above technical solution is optimized, and the following concrete feasible solutions are provided: the transportation distribution device comprises a transportation pipe communicated with the extended suction pipe, and the other end of the transportation pipe is connected with the shunt pipe and shunted to each containing bottle respectively. In the negative pressure ware, the vertical setting of conveying pipe, the upper end intercommunication of conveying pipe is extended and is attracted the pipe, and the lower extreme intercommunication shunt tubes of conveying pipe, according to the difference of receiving bottle quantity, the shunt tubes set up a plurality of absorption tubes of being connected with the receiving bottle respectively, and every absorption tube communicates a receiving bottle alone.

Furthermore, the structure of the extension suction tube is optimized, and the following specific feasible scheme is taken as an example: the pipe wall of the extension suction pipe is provided with a mounting groove, a rack sealing plate is arranged in the mounting groove, and the rack sealing plate is attached to the extension suction pipe and wound on the extension suction pipe. When the rack sealing plate is pulled, the rack sealing plate tensions the extension suction tube and seals the extension suction tube, so that the substance in the extension suction tube is blocked from passing through; when the rack seal plate is released, the extended suction tube releases and allows the passage of its contents.

Further, the locking device in the above technical solution is optimized, which includes the following possible solution: the locking device comprises a rotating rod, a driving gear is arranged at the front end of the rotating rod, and the driving gear is meshed with the rack sealing plate and drives the rack sealing plate to tighten or loosen the extending suction tube. The driving gear drives the rack sealing plate to move, so that on-off control of the extended suction tube is realized. Furthermore, the configuration of the locking device is not uniquely defined, and other possible configurations may be adopted.

And furthermore, a knob is arranged at the tail end of the rotating rod so as to conveniently drive the rotating rod and the driving gear to rotate.

Further, the airbag device disclosed in the above technical solution is optimized, and the following concrete feasible solutions are provided: the air bag device comprises an adjusting tube communicated with the extended suction tube, and the other end of the adjusting tube is provided with an adjusting air bag. The adjusting air bag is arranged, so that air can be supplied into the extension suction pipe through the adjusting pipe, the air pressure in the extension suction pipe, the transportation and distribution device and the storage bottle is increased, and the material in the storage bottle is discharged to the metering collector.

Further, the adjusting pipe disclosed in the above technical solution is optimally set, which gives the following concrete feasible solutions: the adjusting tube is provided with a one-way air valve which leads the air to the extending suction tube from one side of the air bag in one way.

Furthermore, in order to protect a plurality of connection positions on the extension suction tube from being contaminated by other impurities, the following specific feasible schemes are provided: the negative pressure suction apparatus further comprises a sealing box, the extension suction tube extends into the sealing box, and the connection matching position of the locking device and the extension suction tube, the connection matching position of the air bag device and the extension suction tube, and the connection matching position of the conveying tube and the extension suction tube are all located in the sealing box.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

the utility model discloses a set up locking device, the break-make of suction tube is extended in the regulation and control, and during cooperation gasbag device will inhale the material that extends suction tube and deliver to the storage bottle, the material in the storage bottle is finally arranged and is delivered to and is saved in the measurement collector. The utility model can reasonably convey the substance in a relatively sealed environment, and avoid the leakage in midway; meanwhile, the negative pressure device can be prevented from being damaged in an overpressure state, and the working safety and stability of the whole device are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the vacuum extractor.

Fig. 2 is a schematic sectional structure view of the negative pressure aspirator.

Fig. 3 is a partially enlarged schematic view of the inside of the negative pressure suction apparatus at a.

Fig. 4 is a schematic structural diagram of the joint of the driving gear and the rack sealing plate.

Fig. 5 is a schematic structural view of the engagement between the drive gear and the rack seal plate in embodiment 2.

In the above drawings, the meanings of the respective symbols are: 1. a negative pressure device; 2. a metering collector; 3. a storage bottle; 300. a first receiving bottle; 301. a second receiving bottle; 302. a third storage bottle; 4. dredging the pipe; 5. A control valve; 6. a detector; 7. a display; 8. an absorber tube; 9. a shunt tube; 10. a transport pipe; 11. A sealing box; 12. extending the suction tube; 13. an adjusting tube; 14. adjusting the air bag; 15. mounting grooves; 16. Rotating the rod; 17. a drive gear; 18. a rack sealing plate; 19. a primary communicating pipe; 20. a secondary communicating pipe; 21. a suction cup; 22. a touch pad; 23. a propping block; 24. and a baffle plate.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. The present invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.

Example 1

The embodiment optimizes and improves the structure of the negative pressure aspirator aiming at the condition that the existing medical negative pressure aspirator is easy to leak, damage, inaccurate in metering and even overpressure explosion, provides a more safe and reliable negative pressure aspirator, can work more safely and reliably, and can perform more accurate metering and material collection. Specifically, the vacuum extractor disclosed in this embodiment is as follows:

as shown in fig. 1 and 2, a precision metering negative pressure aspirator comprises a negative pressure aspirator 1 and a metering collector 2 which are communicated with each other, wherein a plurality of containing bottles 3 are arranged in the negative pressure aspirator 1, the negative pressure aspirator 1 is connected with an extension suction tube 12, a sucking disc 21 is arranged at the front end of the extension suction tube 12, and the rear end of the extension suction tube 12 is communicated with the containing bottles 3 through a transportation and distribution device; the device also comprises a locking device for controlling the on-off of the extended suction tube 12 and an air bag device for adjusting the air pressure value in the containing bottle 3; the containing bottle 3 communicate with the metering collector 2, and the metering collector 2 is provided with a detector 6.

Preferably, the suction cup 21 in this embodiment employs a double-pass negative pressure plate.

Preferably, the detector 6 in this embodiment is generally a component detector, and may be selected from available detectors according to different attractants, and is not limited herein.

The vacuum extractor disclosed above, by making the negative pressure value in the receiving bottle 3 lower than the external atmospheric pressure by the negative pressure generator 1, the extended suction tube 12 can suck the external substance into the receiving bottle under the condition of low pressure or negative pressure, and the sucked substance is shunted to the receiving bottle 3 through the transportation and distribution device; when the substance in the containing bottle 3 needs to be completely delivered into the metering collector 2, the extending suction tube 12 is blocked by the locking device, the continuous suction of the external substance is stopped, and the air is blown into the extending suction tube 12 and the containing bottle 3 through the air bag device, so that the air pressure in the containing bottle 3 is higher than the air pressure in the metering collector 2, and the substance in the containing bottle 3 is smoothly delivered into the metering collector 2.

The metering collector 2 is used for collecting and storing the sucked substances and displaying whether the current capacity reaches the maximum volume, and specifically, in order to facilitate the metering collector 2 to realize the above functions, the structure of the metering collector 2 is optimally designed, and the following specific feasible schemes are provided: the metering collector 2 comprises a cavity for containing an attractor, and the side wall surface of the cavity is provided with contrast scales; a display 7 is also provided on the dosing collector 2. The side wall of the cavity is provided with a position for comparing scales and can be provided with a transparent observation window, so that the material accumulation height in the cavity can be conveniently observed; the measuring collector 2 can also be directly made of transparent materials and can be directly observed. Display 7 is connected with inductor or camera, and inductor and camera are used for responding to or shoot the material in the measurement collector 2, learn the degree of piling up of material to show through display 7, it is more directly perceived.

The setting mode of the storage bottle 3 disclosed in the above technical scheme is optimized, and the following concrete feasible scheme is adopted in the embodiment: the number of the containing bottles 3 is three, and the containing bottles 3 are sequentially communicated in series and then communicated to the metering collector 2 through the dredging pipe 4.

Preferably, when the number of receiving bottles 3 is three, the first receiving bottle 300 and the second receiving bottle 301 are communicated through the primary communication pipe 19, the second receiving bottle 301 and the third receiving bottle 302 are communicated through the secondary communication pipe 20, and the third receiving bottle 302 is communicated with the dredging pipe 4, and the substance is sent to the metering collector 2 through the dredging pipe 4.

Preferably, the pipe diameter of the primary communication pipe 19 is smaller than that of the secondary communication pipe 20, and the pipe diameter of the secondary communication pipe 20 is smaller than that of the dredging pipe 4.

The dredging pipe 4 is provided with a control valve 5 for controlling the on-off of the dredging pipe 4. The significance of this arrangement is that when the external substance is sucked into the receiving bottle 3 by the negative pressure, the extended suction tube 12 is opened by the locking device, the dredging tube 4 is closed by the control valve 5, and the substance in the metering collector 2 is prevented from entering the receiving bottle 3; when the material in the containing bottle 3 is sent to the metering collector 2 by positive pressure, the extending suction tube 12 is closed by the locking device, the dredging tube 4 is opened by the control valve 5, the material in the containing bottle 3 can be smoothly sent to the metering collector 2, and the material is prevented from flowing backwards and leaking from the extending suction tube 12.

The transportation distribution device disclosed in the above technical scheme is optimized, and the following concrete feasible schemes are given as follows: the transportation distribution device comprises a transportation pipe 10 communicated with an extension suction pipe 12, and the other end of the transportation pipe 10 is connected with a shunt pipe 9 and shunted to each receiving bottle 3 respectively. In negative pressure ware 1, transport pipe 10 is vertical to be set up, and transport pipe 10's upper end intercommunication extends to attract pipe 12, and transport pipe 10's lower extreme intercommunication shunt tubes 9, according to the difference of receiving bottle 3 quantity, shunt tubes 9 set up a plurality of absorption tubes 8 of being connected with receiving bottle 3 respectively, and every absorption tube 8 communicates a receiving bottle 3 alone.

The structure of the extension suction tube 12 is optimized, and the following specific feasible scheme is taken as an example: as shown in fig. 3 and 4, a mounting groove 15 is provided on the wall of the extended suction tube 12, a rack sealing plate 18 is provided in the mounting groove 15, and the rack sealing plate 18 is attached to the extended suction tube 12 and wound. When the rack sealing plate 18 is pulled, the rack sealing plate 18 tensions the extended suction tube 12 and closes the extended suction tube 12, thereby blocking the passage of substances inside the extended suction tube 12; when the rack seal plate 18 is released, the extended suction tube 12 releases and allows the passage of its contents.

Preferably, the lumen of the extended suction tube 12 in this embodiment is semicircular.

The locking device in the above technical solution is optimized, and the following feasible solutions are given: the locking device comprises a rotating rod 16, a driving gear 17 is arranged at the front end of the rotating rod 16, and the driving gear 17 is meshed with a rack sealing plate 18 and drives the rack sealing plate 18 to tighten or loosen the extension suction tube 12. The driving gear 17 drives the rack sealing plate 18 to move, so that on-off control of the extension suction tube 12 is realized. Furthermore, the configuration of the locking device is not uniquely defined, and other possible configurations may be adopted.

Preferably, the end of the rotary rod 16 is provided with a knob to facilitate driving the rotary rod 16 and the driving gear 17 to rotate.

The airbag device disclosed in the above technical solution is optimized, and the following concrete feasible solutions are given: the air bag device comprises an adjusting tube 13 communicated with the extending suction tube 12, and an adjusting air bag 14 is arranged at the other end of the adjusting tube 13. The regulating air bag 14 is provided in the sense that air can be supplied into the extended suction tube 12 through the regulating tube 13 to achieve an increase in air pressure in the extended suction tube 12, the transportation and distribution device, and the storage bottle 3, thereby achieving the discharge of the substance in the storage bottle 3 to the metering collector 2.

The adjusting pipe 13 disclosed in the above technical solution is optimally set, and the following concrete feasible solutions are given as follows: the adjusting tube 13 is provided with a one-way air valve which leads the air to the extending suction tube 12 from one side of the air bag in one way.

In order to protect the multiple connection positions on the extended suction tube 12 from contamination with other impurities, the following embodiments are possible: the negative pressure suction device further comprises a sealing box 11, the extension suction tube 12 extends into the sealing box 11, and the connection matching position of the locking device and the extension suction tube 12, the connection matching position of the air bag device and the extension suction tube 12, and the connection matching position of the conveying tube 10 and the extension suction tube 12 are all located in the sealing box 11.

Example 2

The embodiment discloses a precise metering negative pressure aspirator, which comprises a negative pressure aspirator 1 and a metering collector 2 which are communicated with each other, wherein a plurality of containing bottles 3 are arranged in the negative pressure aspirator 1, the negative pressure aspirator 1 is connected with an extension suction tube 12, a sucking disc 21 is arranged at the front end of the extension suction tube 12, and the rear end of the extension suction tube 12 is communicated with the containing bottles 3 through a transportation and distribution device; the device also comprises a locking device for controlling the on-off of the extended suction tube 12 and an air bag device for adjusting the air pressure value in the containing bottle 3; the containing bottle 3 communicate with the metering collector 2, and the metering collector 2 is provided with a detector 6.

The present embodiment optimizes the structure for controlling the opening or blocking of the extended suction tube 12 by the locking means. The method comprises the following specific steps:

as shown in fig. 5, in this embodiment, a baffle 24 for blocking deviation of the extended suction tube 12 is disposed on one side of the extended suction tube 12, a rack sealing plate 18 is disposed on the other side of the extended suction tube 12, the rack sealing plate 18 is engaged with the driving gear 17 and is moved to be close to the extended suction tube 12 or to be away from the extended suction tube 12 under the action of the driving gear 17, and a pressing block 23 is disposed on the rack sealing plate 18, when the rack sealing plate 18 is close to the rack sealing plate 18, the pressing block 23 presses the extended suction tube 12 against the baffle 24 and seals an inner cavity of the extended suction tube 12, so as to achieve blocking; when the rack seal plate 18 is moved away from the extended suction tube 12, the abutment block 23 releases the extended suction tube and clears the extended suction tube 12.

Preferably, the sealing box 11 is provided with a structure matched with the rack sealing plate 18 to allow the rack sealing plate 18 to slide back and forth.

The structure and connection relationship of other parts in this embodiment are the same as those in embodiment 1, and are not described here again.

The above embodiments are just examples of the present invention, but the present invention is not limited to the above alternative embodiments, and those skilled in the art can obtain other various embodiments by arbitrarily combining the above embodiments, and any one can obtain other various embodiments by the teaching of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.

Claims

1. The utility model provides a precision measurement negative pressure aspirator which characterized in that: the device comprises a negative pressure device (1) and a metering collector (2) which are communicated with each other, wherein a plurality of containing bottles (3) are arranged in the negative pressure device (1), the negative pressure device (1) is connected with an extension suction tube (12), a sucking disc (21) is arranged at the front end of the extension suction tube (12), and the rear end of the extension suction tube (12) is communicated with the containing bottles (3) through a transportation and distribution device; the device also comprises a locking device used for controlling the on-off of the extended suction tube (12) and an air bag device used for adjusting the air pressure value in the containing bottle (3); the containing bottle (3) is communicated with the metering collector (2), and the metering collector (2) is provided with a detector (6).

2. The precision metering negative pressure aspirator of claim 1, wherein: the metering collector (2) comprises a cavity for containing an attractor, and the side wall surface of the cavity is provided with contrast scales; the metering collector (2) is also provided with a display (7).

3. The precision metering negative pressure aspirator of claim 1, wherein: the number of the containing bottles (3) is at least three, and the containing bottles (3) are sequentially communicated in series and then communicated to the metering collector (2) through the dredging pipe (4).

4. The precision metering negative pressure aspirator of claim 3, wherein: the dredging pipe (4) is provided with a control valve (5) for controlling the on-off of the dredging pipe (4).

5. The precision metering negative pressure aspirator of claim 1, wherein: the transportation distribution device comprises a transportation pipe (10) communicated with an extension suction pipe (12), and the other end of the transportation pipe (10) is connected with a shunt pipe (9) and shunted to each containing bottle (3) respectively.

6. The precision metering negative pressure aspirator of claim 1, wherein: the pipe wall of the extension suction pipe (12) is provided with a mounting groove (15), a rack sealing plate (18) is arranged in the mounting groove (15), and the rack sealing plate (18) is attached to the extension suction pipe (12) and wound.

7. The precision metering negative pressure aspirator of claim 6, wherein: the locking device comprises a rotary rod (16), a driving gear (17) is arranged at the front end of the rotary rod (16), and the driving gear (17) is meshed with a rack sealing plate (18) and drives the rack sealing plate (18) to tighten or loosen the extended suction tube (12).

8. The precision metering negative pressure aspirator of claim 1, wherein: the air bag device comprises an adjusting tube (13) communicated with the extending suction tube (12), and an adjusting air bag (14) is arranged at the other end of the adjusting tube (13).

9. The precision metering negative pressure aspirator of claim 8, wherein: the adjusting tube (13) is provided with a one-way air valve which leads air to the extending suction tube (12) from one side of the air bag in one way.

10. The precision metering negative pressure aspirator of claim 1, wherein: the negative pressure suction device further comprises a sealing box (11), the extension suction tube (12) extends into the sealing box (11), and the connection matching position of the locking device and the extension suction tube (12), the connection matching position of the air bag device and the extension suction tube (12), and the connection matching position of the conveying tube (10) and the extension suction tube (12) are all located in the sealing box (11).