CN211327159U - Disposable aspirator negative pressure regulator - Google Patents
Disposable aspirator negative pressure regulator Download PDFInfo
- Publication number
- CN211327159U CN211327159U CN201920916796.3U CN201920916796U CN211327159U CN 211327159 U CN211327159 U CN 211327159U CN 201920916796 U CN201920916796 U CN 201920916796U CN 211327159 U CN211327159 U CN 211327159U
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- negative pressure
- pressure regulating
- pipeline
- inner sleeve
- aspirator
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 58
- 230000001154 acute effect Effects 0.000 claims description 4
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- 238000005538 encapsulation Methods 0.000 abstract description 2
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- 210000005036 nerve Anatomy 0.000 description 7
- 210000005013 brain tissue Anatomy 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 4
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- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 2
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- 230000023597 hemostasis Effects 0.000 description 2
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- 210000004761 scalp Anatomy 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010015769 Extradural haematoma Diseases 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 206010018852 Haematoma Diseases 0.000 description 1
- 206010019468 Hemiplegia Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 206010061213 Iatrogenic injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000004738 parenchymal cell Anatomy 0.000 description 1
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- 238000002360 preparation method Methods 0.000 description 1
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Abstract
The utility model discloses a negative pressure regulator of a disposable aspirator, which comprises a main pipeline, a negative pressure regulating pipeline and a negative pressure regulating valve, wherein the negative pressure regulating pipeline is arranged at one side of the main pipeline and is communicated with the main pipeline; the negative pressure regulating valve is arranged on the negative pressure regulating pipeline and used for regulating the flow of gas entering the negative pressure regulating pipeline. Under the unchangeable condition of total negative pressure, adjust the air flow volume that gets into the negative pressure regulating pipe through adjusting the negative pressure governing valve to adjust the air input that gets into the trunk line via the negative pressure regulating pipe, reach the negative pressure of adjusting the trunk line import, make the art person can be according to the further adjustment pressure of own demand, satisfy the operation needs, also need not increase extra other equipment, reduce the operation cost. The utility model discloses an aseptic encapsulation equipment, disposable reduces the chance that the pollution leads to postoperative infection.
Description
Technical Field
The utility model belongs to the technical field of the aspirator, a disposable aspirator negative pressure regulator is related to.
Background
The suction apparatus is manufactured in a negative pressure state of the suction head by a certain method, so that substances outside the suction head are extruded into the suction head by atmospheric pressure, thereby completing the effect of suction. The aspirator is used for aspirating residual blood, exudates, pus, cyst fluid or pus in pathological parenchymal organs, harmful gas generated by an electrotome and the like in the surgical operation process, so that the operation field is clear and the pollution chance is reduced.
The independent electric suction apparatus uses electric energy as a power source, so the independent electric suction apparatus has the characteristics of high power, strong suction force, wide application range, good mobility and the like, and is widely applied in small and medium hospitals. The centralized control aspirator provides negative pressure needed by the aspirator by using the uniform central negative pressure through the interfaces on the operating room and ward equipment belts. The wall-type flowmeter is connected with the suction head to control the size of negative pressure and avoid sucking dirt into the negative pressure pipeline. The centralized control aspirator has the advantages of simple structure, convenient preparation, small occupied area and low noise. The center controls the negative pressure in a unified way, so that the unified management is easy, and the cost is lower. However, the central negative pressure needs to be provided with a pipeline when a house is built and decorated, so that the mobility is not as good as that of an electric suction apparatus, the electric suction apparatus can be used only when conditions are met, and the suction apparatus is adopted by general hospitals with larger scales.
In neurosurgical operations, the suction apparatus is a simple and extremely important basic surgical instrument whose functions include aspirating blood from the surgical field, maintaining a clean surgical field, finding bleeding points, cutting open brain tissue, removing hematomas, removing devitalized and fragmented brain tissue, assisting in exploring the cranio-basilar brain surface, and aspirating cotton sheets pressed against gelatin sponges to assist in hemostasis. The adjustment of the attraction force is a crucial link during the operation of the suction tube. Generally, a thicker suction tube can be used when the scalp is cut, the suction force is stronger, and the scalp hemostasis is facilitated. When the brain is operated, the thin suction tube is replaced, and the suction force is adjusted according to different suction objects. The attraction is larger when the epidural hematoma is cleared; the attraction force can be larger when the moisture in the cotton sheet is absorbed. When directly operated on the brain tissue, the suction force should be adjusted to such an extent that the suction tube can suck only water and blood without sucking the brain tissue, blood vessels and nerves. Blood and liquid in an operation area cannot be sucked in time due to too small pressure of the suction apparatus, so that important structures such as blood vessels, nerves and the like cannot be effectively exposed, accurate and fine operation cannot be performed to slow down the operation progress, or accidental nerve function damage is caused; the attraction is too large, important blood vessels, nerves, brain tissues and the like are sucked by mistake, extremely serious iatrogenic injury is caused, serious nerve dysfunction such as hemiplegia and the like occur after the operation of a patient, and even the life of the patient is directly endangered. It follows that extremely precise adjustment of aspirator pressure is required at any time during neurosurgery.
In order to adjust the pressure of the suction apparatus at any time during operation, the neurosurgery suction apparatus head which is clinically used at present is designed to be provided with a circular or water drop-shaped side hole, so that an operator can adjust the suction pressure by blocking the side hole of the suction apparatus head by fingers. However, the adjustment of the side holes during fine operation cannot meet the requirements of the operation, and the side holes often cause damage due to aspiration of important nerves, blood vessels and brain tissues caused by excessive attraction, so that the function of the nerves after the operation is damaged, and even the life of a patient is endangered. Therefore, the nurse is required to adjust the pressure adjusting pump of the suction apparatus at any time during the operation, so as to meet the requirements of the operation. However, there are some problems: 1. the requirement of neurosurgery doctors on the pressure of the suction apparatus during the operation is extremely precise, although the surgeons can adjust the pressure by plugging the side hole of the suction apparatus tube, the pressure adjusting range is limited, and the operation requirement cannot be met; 2. in order to adjust the negative pressure of the aspirator in a large range, a nurse is required to adjust the pressure of the aspirator at any time according to the requirements of an operator in the operation process, so that the labor cost of the operation is increased, and the adjustment of the pressure of the aspirator by the nurse cannot completely meet the requirements of an operator, so that the precise adjustment of the negative pressure cannot be met.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects existing in the prior art, the utility model aims to provide a disposable aspirator negative pressure regulator, which can regulate the pressure in real time according to the requirement of an operator, and reduce the pressure on the regulation pressure of the original aspirator again.
The utility model discloses a realize through following technical scheme:
a negative pressure regulator of a disposable aspirator comprises a main pipeline, a negative pressure regulating pipeline and a negative pressure regulating valve, wherein the negative pressure regulating pipeline is arranged on one side of the main pipeline and is communicated with the main pipeline;
the negative pressure regulating valve is arranged on the negative pressure regulating pipeline and used for regulating the flow of gas entering the negative pressure regulating pipeline.
Furthermore, a filter device is arranged at the inlet end of the negative pressure adjusting pipeline.
Further, the filter device adopts a HIPA filter screen.
Furthermore, the included angle between the negative pressure adjusting pipeline and the main pipeline forms an acute angle.
Further, the inlet of the main pipeline is connected with the aspirator head through a connecting hose, the outlet of the main pipeline is connected with a collecting bottle through a connecting hose, and the collecting bottle is connected with the central aspirator or the electric aspirator through a connecting hose.
Further, the negative pressure regulating valve comprises a shell and an inner sleeve which is arranged inside the shell and can rotate relative to the shell, air channels with the same diameter as that of the negative pressure regulating pipeline are arranged on the shell and in the inner sleeve, and the top end of the inner sleeve is connected with a regulating knob used for enabling the inner sleeve to rotate.
Further, the inner skleeve top is connected with the connecting block, and the inner skleeve is connected as an organic whole with the connecting block, and the connecting block symmetry sets up in inner skleeve top both sides, and adjust knob sets up on the connecting block.
Furthermore, a locking device is further arranged at the top end of the inner sleeve and comprises two symmetrically arranged wedge blocks, the two wedge blocks and the two connecting blocks are arranged in a crossed mode, a sliding block and a connecting rod are arranged between the two wedge blocks, the sliding block and the connecting rod are connected into a whole, and a locking wrench is arranged at the tail end of the connecting rod;
when the locking spanner is pulled downwards, the connecting rod is in a pulled-out state, the wedge-shaped block is in close contact with the inner wall of the shell, and the inner sleeve is locked; when the locking spanner is lifted, the connecting rod is in a retraction state, the wedge block resets, and the inner sleeve is unlocked.
Further, the locking spanner is connected with the connecting rod through an eccentric shaft.
Furthermore, a spring is sleeved on the connecting rod.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses a disposable aspirator negative pressure regulator, trunk line and negative pressure regulating pipe way including the intercommunication, the negative pressure regulating pipe way sets up in trunk line one side, be equipped with the negative pressure regulating valve on the negative pressure regulating pipe way, under the unchangeable condition of trunk line export total negative pressure, adjust the air flow that gets into in the negative pressure regulating pipe way through adjusting the negative pressure regulating valve, thereby adjust the air input that gets into the trunk line via the negative pressure regulating pipe way, reach the negative pressure of adjusting the trunk line import, make the art person can be according to the demand further adjustment pressure of oneself, satisfy the operation needs, also need not increase extra other equipment, reduce the operation cost. The utility model discloses an aseptic encapsulation equipment, disposable reduces the chance that the pollution leads to postoperative infection.
Furthermore, a filter screen is additionally arranged on the negative pressure adjusting pipeline, so that the cleanness of air flow entering the pipeline is ensured, and the risk of operation-related infection is reduced.
Furthermore, the included angle between the negative pressure adjusting pipeline and the main pipeline forms an acute angle, and the consistency of the airflow directions of the negative pressure adjusting pipeline and the main pipeline is ensured.
Further, the negative pressure regulating valve comprises an outer shell and an inner sleeve capable of rotating for 360 degrees, wherein an air channel with the same diameter as that of the negative pressure regulating pipeline is arranged in the inner sleeve, and the outside air flow purified by the filter screen is allowed to pass through the air channel and then enters the main pipeline. Through rotatory adjust knob, the angle of air conditioning passageway and negative pressure control duct to adjust the air input that gets into the trunk line via negative pressure control duct, and then under the unchangeable condition of trunk line export total negative pressure, change trunk line and negative pressure control duct's air current proportion, thereby adjust the negative pressure of trunk line import.
Furthermore, the inner sleeve is connected with the adjusting knob through two connecting blocks, and the inner sleeve does not need to penetrate through the inside of the whole shell, so that the weight of the inner sleeve can be greatly reduced.
Furthermore, the negative pressure regulating valve is also provided with a locking device which comprises two wedge-shaped blocks, the wedge-shaped blocks and the connecting block are arranged in a crossed manner, a sliding block and a connecting rod are arranged between the two wedge-shaped blocks, the sliding block and the connecting rod are connected into a whole, and a locking spanner is arranged at the tail end of the connecting rod; when the locking wrench is pulled downwards, the connecting rod is pulled out, so that the sliding block is lifted, the sliding block pushes the wedge block, the wedge block is tightly contacted with the inner wall of the shell to be locked, the wedge block is connected with the adjusting knob by virtue of the connecting sheet, the adjusting knob is connected with the connecting block, the connecting block is connected with the inner sleeve, so that the connecting block cannot rotate, and the inner sleeve of the negative pressure adjusting valve is locked; when the locking spanner is lifted, the connecting rod moves downwards, the sliding block moves downwards, the wedge block resets, and the inner sleeve of the negative pressure adjusting valve is unlocked. Through ingenious design, realized the locking function of negative pressure governing valve, prevented that the inner skleeve from rotating by oneself because of the effect of negative pressure suction.
Furthermore, the locking spanner is connected with the connecting rod through the eccentric shaft, and when the locking spanner is rotated, the eccentric shaft can drive the connecting rod to displace and drive the sliding block to move.
Further, the spring is additionally arranged on the connecting rod, when the locking spanner is lifted, the connecting rod moves downwards, the spring returns, the spring pushes the sliding block to move downwards, the wedge block automatically resets, the resetting speed of the sliding block can be accelerated, and time and labor are saved.
Drawings
Fig. 1 is a schematic structural view corresponding to the coincidence of the central line of the air channel and the negative pressure regulating pipeline of the present invention;
FIG. 2 is a schematic structural view of the air channel and the negative pressure regulating pipeline of the present invention when an included angle exists between the central lines;
FIG. 3 is a schematic structural view of the air channel of the present invention corresponding to the center line of the negative pressure regulating pipe;
FIG. 4 is a top view of the negative pressure regulator valve;
FIG. 5 is a cross-sectional view B-B of FIG. 4;
FIG. 6 is another view of FIG. 5 after rotation of the locking wrench;
FIG. 7 is a cross-sectional view A-A of FIG. 4;
fig. 8 is a schematic view of an installation structure of the negative pressure regulator of the present invention.
Wherein: 1 is a main pipeline, 2 is a negative pressure adjusting pipeline, 3 is a negative pressure adjusting valve, 4 is a central aspirator or an electric aspirator, 5 is an aspirator head, 6 is a connecting hose, and 7 is a collecting bottle;
11 is an inlet, 12 is an outlet, 21 is a filtering device, 31 is an outer shell, 32 is an inner sleeve, 33 is an air channel, 34 is an adjusting knob, 35 is a locking wrench, 36 is a connecting rod, 37 is a sliding block, 38 is a spring, 39 is a wedge-shaped block, 310 is a connecting block, 311 is an eccentric shaft, and 312 is a connecting piece.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
as shown in figures 1-3, the utility model discloses mainly constitute by the triplex: a main pipeline 1, a negative pressure adjusting pipeline 2 and a negative pressure adjusting valve 3. The negative pressure adjusting pipeline 2 is communicated with one side of the main pipeline 1, and a negative pressure adjusting valve 3 is arranged on the negative pressure adjusting pipeline 2.
As shown in fig. 8, the main pipe 1 is a pipe through which liquid and solid fragments in the operation field absorbed in the operation can pass, one end of the main pipe 1 is an inlet 11, the other end is an outlet 12, the inlet 11 is connected with the aspirator head 5 through a connecting hose 6, the outlet 12 is connected with the collecting bottle 7 through the connecting hose 6, and the collecting bottle 7 is connected with the central aspirator or the electric aspirator 4 through the connecting hose 6, so that the liquid and the solid fragments in the operation field can be absorbed and collected into the collecting bottle 7 (i.e. the negative pressure drainage bag or the drainage bottle).
As shown in figure 1, the negative pressure adjusting pipeline 2 is connected with the main pipeline 1 at an acute angle and is directly communicated with one side of the main pipeline 1, so that the consistency of the airflow directions of the main pipeline 1 and the negative pressure adjusting pipeline is ensured. A filter device 21 is arranged at the inlet end of the negative pressure adjusting pipeline 2, and the filter device 21 generally adopts a HIPA filter screen. The reduced pressure airflow enters from the filter screen, so that the airflow entering the system is clean, and the risk of operation-related infection is reduced. The air flow entering the negative pressure adjusting pipeline 2 is adjusted through the negative pressure adjusting valve 3, and then the air flow proportion of the main pipeline 1 and the negative pressure adjusting pipeline 2 is changed under the condition that the total negative pressure of the outlet 12 of the negative pressure adjuster is not changed, so that the negative pressure of the inlet 11 of the main pipeline is adjusted.
The negative pressure regulating valve 3 comprises a shell 31 and an inner sleeve 32 which can rotate 360 degrees relative to the shell 31, a cylindrical air channel 33 with the same diameter as that of the negative pressure regulating pipeline 2 is arranged in the inner sleeve 32, the shell 31 and the negative pressure regulating pipeline 2 are integrated, and the shell 31 is also provided with the cylindrical air channel 33 with the same diameter as that of the negative pressure regulating pipeline 2 so as to allow the outside air flow purified by the filter screen to pass through the cylindrical air channel 33 and then enter the main pipeline 1.
The central line of the air channel 33 in fig. 1 coincides with the central line of the negative pressure regulating pipeline 2, the air inflow into the negative pressure regulating pipeline 2 is the largest, the central line of the air channel 33 in fig. 2 has a certain included angle with the central line of the negative pressure regulating pipeline 2, compared with the state in fig. 1, the air inflow into the negative pressure regulating pipeline 2 is reduced, the central line of the air channel 33 in fig. 3 is perpendicular to the central line of the negative pressure regulating pipeline 2, and no air enters into the negative pressure regulating pipeline 2. Through rotatory adjust knob 34, adjust the contained angle of air passage 33 and negative pressure control pipeline 2 to the regulation gets into the air input of trunk line 1, and then under the unchangeable condition of the total negative pressure of negative pressure regulator export 12, changes trunk line 1 and negative pressure control pipeline 2's air current proportion, thereby realizes adjusting the negative pressure of trunk line entry 11.
For example, when the total negative pressure at the outlet 12 is 50kPa, the negative pressure regulating valve 3 is at the position of FIG. 3, the negative pressure at the inlet 11 is 50kPa, and the surgeon can regulate the negative pressure at the side hole of the suction head between 30 kPa and 50 kPa; when the negative pressure regulating valve 3 is in the position of fig. 1, the negative pressure of the inlet 11 is reduced to 25kPa, and the operator can regulate the suction head side hole between 15 kPa and 25 kPa. The operator can adjust the negative pressure of the inlet 11 at any time by adjusting the adjusting knob 34 according to the requirement in the operation.
As shown in fig. 4 and 7, the connecting block 310 is connected to the top end of the inner sleeve 32, the connecting blocks 310 are symmetrically disposed on two sides of the top end of the inner sleeve 32, the inner sleeve 32 is connected to the connecting block 310, the adjusting knob 34 is connected to the connecting block 310, the relative positions of the three are fixed and cannot be changed, and the angles of the air channel 33 of the inner sleeve 32 and the negative pressure adjusting pipeline 2 can be integrally adjusted by rotating the adjusting knob 34.
As shown in fig. 7, the end of the inner sleeve 32 is designed to protrude out of the outer shell 31 and is turned upside down, having a diameter larger than that of the outer shell 31; the end of the connecting block 310 is designed to protrude out of the outer housing 31 and is turned back outward with a diameter larger than that of the outer housing 31 so that the inner sleeve 32 does not slip out to both sides.
More preferably, in order to prevent the inner sleeve 32 of the negative pressure adjusting valve 3 from rotating by itself due to the action of the negative pressure suction, the present invention provides a locking device. As shown in fig. 5 and 6, the locking device includes two symmetrically arranged wedges 39, the two wedges 39 are arranged in the reserved space of the two connecting blocks 310, the two wedges 39 and the two connecting blocks 310 are arranged in a crossed manner as shown in fig. 4, a sliding block 37 and a connecting rod 36 are arranged between the two wedges 39, the sliding block 37 and the connecting rod 36 are connected into a whole, and a locking wrench 35 is arranged at the tail end of the connecting rod 36. The two wedges 39 are relatively free, connected at the top by means of a connecting tab 312 to the adjustment knob 34 and free at the bottom and can extend towards the outside. The bottom end of the locking wrench 35 is of a cylindrical design and is connected to the connecting rod 36 by means of an eccentric shaft 311. The eccentric shaft 311 is located in the middle of the adjusting knob 34, the middle of the adjusting knob 34 is provided with a gap for placing the connecting rod 36 and the cylinder part of the locking wrench 35, and two ends of the eccentric shaft 311 are fixed on the adjusting knob 34 and pass through the cylinder part of the locking wrench 35 and the connecting rod 36. When the locking wrench 35 is pulled downward, the connecting rod 36 is pulled out, so that the sliding block 37 is lifted, the sliding block 37 pushes the wedge block 39, the wedge block 39 is in close contact with the inner wall of the shell 31, the top end of the wedge block 39 is connected with the adjusting knob 34 through the connecting piece 312, the adjusting knob 34 is connected with the connecting block 310, the connecting block 310 cannot rotate, and the inner sleeve 32 of the negative pressure adjusting valve 3 is locked. When the locking wrench 35 is lifted, the connecting rod 36 moves downwards, the spring 38 returns, the spring 38 pushes the slide block 37 to move downwards, the wedge block 39 returns, and the inner sleeve 32 of the negative pressure regulating valve 3 is unlocked.
Claims (7)
1. A negative pressure regulator of a disposable aspirator is characterized by comprising a main pipeline (1), a negative pressure regulating pipeline (2) and a negative pressure regulating valve (3), wherein the negative pressure regulating pipeline (2) is arranged on one side of the main pipeline (1), and the negative pressure regulating pipeline (2) is communicated with the main pipeline (1);
the negative pressure regulating valve (3) is arranged on the negative pressure regulating pipeline (2) and is used for regulating the flow of gas entering the negative pressure regulating pipeline (2);
the negative pressure regulating valve (3) comprises a shell (31) and an inner sleeve (32) which is arranged in the shell (31) and can rotate relative to the shell (31), air channels (33) with the same diameter as that of the negative pressure regulating pipeline (2) are respectively arranged on the shell (31) and in the inner sleeve (32), and the top end of the inner sleeve (32) is connected with a regulating knob (34) for rotating the inner sleeve (32);
the top end of the inner sleeve (32) is connected with a connecting block (310), the inner sleeve (32) and the connecting block (310) are connected into a whole, the connecting block (310) is symmetrically arranged on two sides of the top end of the inner sleeve (32), and the adjusting knob (34) is arranged on the connecting block (310);
the top end of the inner sleeve (32) is also provided with a locking device, the locking device comprises two symmetrically arranged wedge blocks (39), the two wedge blocks (39) and the two connecting blocks (310) are arranged in a crossed manner, a sliding block (37) and a connecting rod (36) are arranged between the two wedge blocks (39), the sliding block (37) and the connecting rod (36) are connected into a whole, and the tail end of the connecting rod (36) is provided with a locking spanner (35);
when the locking wrench (35) is pulled downwards, the connecting rod (36) is in a pulled-out state, the wedge block (39) is in close contact with the inner wall of the shell (31), and the inner sleeve (32) is locked; when the locking wrench (35) is lifted, the connecting rod (36) is in a retraction state, the wedge block (39) is reset, and the inner sleeve (32) is unlocked.
2. The disposable aspirator negative pressure regulator according to claim 1, characterized in that the inlet end of the negative pressure regulating pipe (2) is provided with a filtering device (21).
3. The disposable aspirator negative pressure regulator according to claim 2, wherein the filtering means (21) employs a HIPA filter screen.
4. The disposable aspirator negative pressure regulator according to claim 1, characterized in that the negative pressure regulating tube (2) forms an acute angle with the main tube (1).
5. The disposable aspirator negative pressure regulator according to claim 1, characterized in that the inlet (11) of the main pipe (1) is connected with the aspirator head (5) through a connection hose (6), the outlet (12) is connected with the collection bottle (7) through a connection hose (6), and the collection bottle (7) is connected with the central aspirator or the electric aspirator (4) through a connection hose (6).
6. The disposable aspirator negative pressure regulator according to claim 1, characterized in that the locking wrench (35) is connected with the connecting rod (36) through an eccentric shaft (311).
7. The disposable aspirator negative pressure regulator according to claim 1, wherein a spring (38) is further sleeved on the connecting rod (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920916796.3U CN211327159U (en) | 2019-06-18 | 2019-06-18 | Disposable aspirator negative pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920916796.3U CN211327159U (en) | 2019-06-18 | 2019-06-18 | Disposable aspirator negative pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211327159U true CN211327159U (en) | 2020-08-25 |
Family
ID=72107807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920916796.3U Withdrawn - After Issue CN211327159U (en) | 2019-06-18 | 2019-06-18 | Disposable aspirator negative pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211327159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170079A (en) * | 2019-06-18 | 2019-08-27 | 西安交通大学医学院第一附属医院 | A kind of disposable aspirator draft regulator |
-
2019
- 2019-06-18 CN CN201920916796.3U patent/CN211327159U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170079A (en) * | 2019-06-18 | 2019-08-27 | 西安交通大学医学院第一附属医院 | A kind of disposable aspirator draft regulator |
| CN110170079B (en) * | 2019-06-18 | 2024-03-01 | 西安交通大学医学院第一附属医院 | Disposable aspirator negative pressure regulator |
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