CN219558204U - Adjustable negative pressure suction tube - Google Patents
Adjustable negative pressure suction tube Download PDFInfo
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- CN219558204U CN219558204U CN202222761811.6U CN202222761811U CN219558204U CN 219558204 U CN219558204 U CN 219558204U CN 202222761811 U CN202222761811 U CN 202222761811U CN 219558204 U CN219558204 U CN 219558204U
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- suction tube
- negative pressure
- adjusting frame
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Abstract
The adjustable negative pressure suction tube is characterized in that a double-layer filter screen is arranged in the front end of the suction tube, a regulating hole is formed in the middle upper part of the suction tube, a limiting cylinder matched with the regulating hole is arranged on the outer ring of the regulating hole, and a regulating assembly is arranged on the suction tube at the regulating hole; the adjusting assembly comprises an adjusting frame and an adjusting block which can be inserted into the adjusting hole, the adjusting frame is arranged on the outer wall of the suction pipe, the top surface of the adjusting frame is an inclined surface and is provided with a strip-shaped groove, an adjusting rod which extends into the adjusting frame is movably arranged on the strip-shaped groove, and the top end of the adjusting rod is provided with a pushing block which can be clung to the top surface of the adjusting frame to slide; the inner side wall of the adjusting frame is hinged with a pressing rod, the tail end of the pressing rod is hinged with a push rod, the adjusting block is arranged at the bottom end of the push rod and is positioned in the limiting cylinder, and the bottom end of the adjusting rod is abutted against the pressing rod; the tail end of the pressing rod is hinged with a tension spring, and the top end of the tension spring is hinged to the inner top surface of the adjusting frame.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a controllable negative pressure suction tube.
Background
The medical negative pressure aspirator is mainly used for sucking out blood, effusion in a body cavity and smoke generated by an electrotome in the operation process, so that the operation field is clearer, and the infection probability is reduced. In addition, in order to prevent the exudation of subcutaneous effusion after the operation, a negative pressure aspirator can be placed to drain, such as household sputum aspiration or sputum aspiration in first aid of the operation, and uterine aspiration and uterine curettage operation when pregnancy is required to be stopped due to the unexpected pregnancy, if uterine curettage operation is required after the artificial abortion of gynaecology and obstetrics, etc.
The negative pressure suction devices used in hospitals at present have two types, one type is that negative pressure is formed through a central pump, negative pressure ports are opened in each operating room and are connected with negative pressure connectors, and the other type is that a single device is adopted, and negative pressure is formed on a single negative pressure connector through a single pump.
However, in actual medical procedures, the following two problems often occur:
(1) The single negative pressure aspirator is often in actual operation because the negative pressure is too high and cannot be regulated, so that the negative pressure aspirator has the risk of damaging parathyroid glands and nerves of a patient;
(2) Because of the factors of the suction head, the suction device sucks blood and effusion in the body cavity can cause human tissues to be sucked away because the front end opening of the suction head is not blocked.
Disclosure of Invention
In order to solve the problems, the utility model provides an adjustable negative pressure suction tube, which comprises the following specific technical scheme:
the adjustable negative pressure suction tube is characterized in that a double-layer filter screen is arranged in the front end of the suction tube, a regulating hole is formed in the middle upper part of the suction tube, a limiting cylinder matched with the regulating hole is arranged on the outer ring of the regulating hole, and a regulating assembly is arranged on the suction tube at the regulating hole; the adjusting assembly comprises an adjusting frame and an adjusting block which can be inserted into the adjusting hole, the adjusting frame is arranged on the outer wall of the suction pipe, the top surface of the adjusting frame is an inclined surface and is provided with a strip-shaped groove, an adjusting rod which extends into the adjusting frame is movably arranged on the strip-shaped groove, and the top end of the adjusting rod is provided with a pushing block which can be clung to the top surface of the adjusting frame to slide; the inner side wall of the adjusting frame is hinged with a pressing rod, the tail end of the pressing rod is hinged with a push rod, the adjusting block is arranged at the bottom end of the push rod and is positioned in the limiting cylinder, and the bottom end of the adjusting rod is abutted against the pressing rod; the tail end of the pressing rod is hinged with a tension spring, and the top end of the tension spring is hinged to the inner top surface of the adjusting frame.
Further, a plurality of groups of limiting grooves capable of limiting the movement of the adjusting rod are formed in the side face of the strip-shaped groove.
Further, a sliding groove is formed in the top surface of the pressing rod along the length direction of the pressing rod, and balls capable of rolling in the sliding groove are arranged in the bottom of the adjusting rod.
Further, guide blocks are arranged on the inner side walls of the suction tube which are positioned at the inner side and the opposite side of the adjusting hole.
The beneficial effects are that:
the utility model can utilize the adjusting component to adjust the pressure of the suction tube, is suitable for different operation environments, and simultaneously utilizes the double-layer filter screen arranged at the end part to block tissues, thereby avoiding the suction of human tissues caused by overlarge negative pressure.
Drawings
Fig. 1 is an overall schematic of the present utility model.
FIG. 2 is a schematic top view of a bar slot of the present utility model.
Fig. 3 is a schematic view of an adjusting lever according to the present utility model.
FIG. 4 is a schematic view of a double screen according to the present utility model.
In the figure: the filter comprises a suction tube 1, an adjusting frame 2, an adjusting block 3, a strip-shaped groove 4, a limit groove 5, an adjusting rod 6, a pushing block 7, a pressing rod 8, a push rod 9, a tension spring 10, a limit cylinder 11, a sliding groove 12, a ball 13, a limit disc 14, a pushing groove 15, a guide block 16 and a filter screen 17.
Detailed Description
The utility model is further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 4, an adjustable negative pressure suction tube 1 is provided with a double-layer filter screen 17 in the front end of the suction tube 1, the middle upper part of the suction tube 1 is provided with an adjusting hole, the outer ring of the adjusting hole is provided with a limit cylinder 11 matched with the adjusting hole, and the suction tube 1 at the adjusting hole is provided with an adjusting component; the adjusting assembly comprises an adjusting frame 2 and an adjusting block 3 which can be inserted into an adjusting hole, the adjusting frame 2 is arranged on the outer wall of the suction tube 1, the top surface of the adjusting frame is an inclined surface and is provided with a strip-shaped groove 4, an adjusting rod 6 which extends into the adjusting frame 2 is movably arranged on the strip-shaped groove 4, and the top end of the adjusting rod 6 is provided with a pushing block 7 which can be clung to the top surface of the adjusting frame 2 to slide; the inner side wall of the adjusting frame 2 is hinged with a pressing rod 8, the tail end of the pressing rod 8 is hinged with a push rod 9, the adjusting block 3 is arranged at the bottom end of the push rod 9 and is positioned in a limiting cylinder 11, and the bottom end of the adjusting rod 6 is abutted against the pressing rod 8; the tail end of the pressing rod 8 is hinged with a tension spring 10, and the top end of the tension spring 10 is hinged to the inner top surface of the adjusting frame 2.
Specifically, in the initial state, the adjusting block 3 is located in the limiting cylinder 11, the tension spring 10 is not stressed, the pressing rod 8 is in a straight state, and the pushing block 7 is located at the rear end of the bar-shaped groove 4.
The periphery and the top surface of the limiting cylinder 11 are in a closed state, a through hole which can be penetrated by the push rod 9 is formed in the top surface of the limiting cylinder, and a sealing ring with a certain sealing effect is arranged on the inner ring of the through hole, so that the negative pressure suction force of the suction pipe 1 is prevented from being influenced when the suction pipe works.
The top of the adjusting rod 6 is provided with a pushing groove 15 through two inclined limiting plates 14, and the pushing groove 15 can clamp the top plate of the adjusting frame 2 therein; when the pushing block 7 is used for pushing the adjusting rod 6 to move in the strip-shaped groove 4, the top plate of the adjusting frame 2 is kept in the pushing groove 15, so that the bottom end of the adjusting rod 6 can be always abutted against the pressing rod 8 when moving.
As shown in fig. 1 and 2, the side surface of the bar-shaped groove 4 is provided with a plurality of groups of limiting grooves 5 capable of limiting the movement of the adjusting rod 6, and the width of the limiting grooves 5 is slightly smaller than the outer diameter of the adjusting rod 6, so that the adjusting rod 6 can be tightly clamped in the limiting grooves 5.
Preferably, the limit grooves 5 are three, and the limit grooves 5 at different positions can enable the adjusting block 3 to be inserted into the suction tube 1 at different depths, so that the magnitude of the negative pressure attractive force can be adjusted; wherein, the negative pressure value ranges of the three limiting grooves 5 which are sequentially adjustable are 0-150mmHg, 150-300mmHg and 300-450mmHg.
It should be noted that, the width of the pushing groove 15 formed by the two limiting plates 14 is slightly larger than the thickness of the top plate of the adjusting frame 2, so that a certain margin is left to enable the adjusting rod 6 to be obliquely clamped into the limiting groove 5.
As shown in fig. 1 and 3, the top surface of the pressing rod 8 is provided with a sliding groove 12 along the length direction thereof, and the bottom of the adjusting rod 6 is provided with a ball 13 capable of rolling in the sliding groove 12.
Wherein, most part of the ball 13 is wrapped in the bottom of the adjusting rod 6, so that the ball 13 can be limited in the bottom and can not fall off and can rotate. When the pushing block 7 is pushed to move the adjusting rod 6 to the front end, the balls 13 roll in the sliding groove 12, meanwhile, the adjusting rod 6 is utilized to push the pressing rod 8 towards the direction approaching the suction tube 1, the pressing rod 8 pushes the pushing rod 9 to move the adjusting block 3 into the suction tube 1, and the tension spring 10 is also stretched; when the adjusting rod 6 moves at the rear end, the adjusting block 3 moves away from the suction tube 1 under the action of the elastic force of the tension spring 10.
In one embodiment, the guide blocks 16 are arranged on the inner side walls of the suction tube 1 positioned at the inner side and the opposite side of the adjusting hole, and the end sides of the guide blocks 16 are arc-shaped openings which are opened outwards, so that the adjusting block 3 can be accurately inserted into or withdrawn from the guide blocks 16, and the adjusting block 3 is prevented from being blocked when moving into the suction tube 1.
As shown in fig. 4, the filter screen 17 may be integrally formed with the suction tube 1 by compression molding, and the blocking effect is formed by using the double-layer filter screen 17, so as to solve the problem that the front end opening of the suction head is easy to suck human tissues.
When in use, the suction tube 1 is connected with a negative pressure machine, and the pushing block 7 is pushed along the strip-shaped groove 4 according to the operation requirement, so that the adjusting rod 6 is clamped into the proper limiting groove 5 to adjust the suction negative pressure of the suction tube 1; at this time, the adjusting rod 6 utilizes the push rod 9 to enable the adjusting block 3 to enter the suction tube 1, and the adjusting block 3 occupies a certain tube diameter in the suction tube 1 to enable the negative pressure formed at the front end of the suction tube 1 to be reduced, so that the suction negative pressure of the suction tube 1 is adjusted; the limit groove 5 corresponds to three negative pressure gears, so that the adjustment of three-gear pressure can be realized; when the adjusting rod 6 is moved out of the limit groove 5 and reset, the adjusting block 3 is restored to the initial position under the action of the elastic force of the tension spring 10.
Claims (4)
1. An adjustable negative pressure suction tube, which is characterized in that: a double-layer filter screen is arranged in the front end of the suction pipe, an adjusting hole is formed in the middle upper part of the suction pipe, a limit cylinder matched with the adjusting hole is arranged on the outer ring of the adjusting hole, and an adjusting assembly is arranged on the suction pipe at the adjusting hole; the adjusting assembly comprises an adjusting frame and an adjusting block which can be inserted into the adjusting hole, the adjusting frame is arranged on the outer wall of the suction pipe, the top surface of the adjusting frame is an inclined surface and is provided with a strip-shaped groove, an adjusting rod which extends into the adjusting frame is movably arranged on the strip-shaped groove, and the top end of the adjusting rod is provided with a pushing block which can be clung to the top surface of the adjusting frame to slide; the inner side wall of the adjusting frame is hinged with a pressing rod, the tail end of the pressing rod is hinged with a push rod, the adjusting block is arranged at the bottom end of the push rod and is positioned in the limiting cylinder, and the bottom end of the adjusting rod is abutted against the pressing rod; the tail end of the pressing rod is hinged with a tension spring, and the top end of the tension spring is hinged to the inner top surface of the adjusting frame.
2. The adjustable negative pressure suction tube of claim 1, wherein: and a plurality of groups of limiting grooves capable of limiting the movement of the adjusting rod are formed in the side face of the strip-shaped groove.
3. The adjustable negative pressure suction tube of claim 1, wherein: the top surface of the pressing rod is provided with a sliding groove along the length direction of the pressing rod, and the bottom of the adjusting rod is internally provided with a ball capable of rolling in the sliding groove.
4. The adjustable negative pressure suction tube of claim 1, wherein: guide blocks are arranged on the inner side walls of the suction pipes which are positioned at the inner side and the opposite side of the adjusting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222761811.6U CN219558204U (en) | 2022-10-17 | 2022-10-17 | Adjustable negative pressure suction tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222761811.6U CN219558204U (en) | 2022-10-17 | 2022-10-17 | Adjustable negative pressure suction tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219558204U true CN219558204U (en) | 2023-08-22 |
Family
ID=87648323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222761811.6U Active CN219558204U (en) | 2022-10-17 | 2022-10-17 | Adjustable negative pressure suction tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219558204U (en) |
-
2022
- 2022-10-17 CN CN202222761811.6U patent/CN219558204U/en active Active
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