CN211024670U - Negative pressure drainage tube - Google Patents
Negative pressure drainage tube Download PDFInfo
- Publication number
- CN211024670U CN211024670U CN201920824900.6U CN201920824900U CN211024670U CN 211024670 U CN211024670 U CN 211024670U CN 201920824900 U CN201920824900 U CN 201920824900U CN 211024670 U CN211024670 U CN 211024670U
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- hole
- shell
- axis
- liquid
- negative pressure
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- Expired - Fee Related
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Abstract
The utility model provides a negative pressure drainage tube, including the distal end of feed liquor and the near-end of play liquid, negative pressure drainage tube's near-end is equipped with the valve, the valve includes: the side face of the shell is provided with a liquid inlet, a liquid outlet and an air inlet, the cylindrical rotary core is coaxially arranged with the shell, the outer surface of the curved side face of the rotary core is in interference fit with the inner surface of the curved side face of the shell, the curved side face of the rotary core is provided with a first hole and a second hole, and the first hole and the second hole are communicated inside the rotary core. The beneficial effects of the utility model are that owing to adopt above-mentioned technical scheme, the drainage tube with when removing between the receiving flask and be connected, the liquid in the pipeline can not leak, pollution abatement.
Description
Technical Field
The utility model relates to the technical field of medical equipment, specifically a be applied to negative pressure drainage tube.
Background
The drainage tube is a medical appliance for clinical surgery drainage, which guides pus, blood, liquid and other liquids accumulated in human tissues or body cavities to the outside of the body, prevents postoperative infection and promotes wound healing. The clinical surgical drainage tubes are used in many kinds, some are used for catheterization, and some are used for wounds, thoracic cavities, brain cavities, gastrointestinal tracts, biliary tracts and the like.
The drainage tube is generally made of materials such as silicon rubber or polyurethane. When in use, one end of the catheter is inserted into the drainage position in vivo or on the wound surface, and the other end of the catheter can be connected with other external apparatuses such as a drainage connecting pipe and the like in vitro, and can drain the drainage in vitro under the action of internal pressure, gravity or negative pressure suction isopiestic pressure.
When the power source for drainage is negative pressure, the drainage tube is usually connected to a negative pressure device, such as a negative pressure pump, and a collection bottle is usually disposed between the drainage tube and the negative pressure device for collecting the drained liquid. The drainage tube and the collecting bottle are connected in 2 modes, one mode is that luer connectors matched with each other are arranged between the drainage tube and the collecting bottle, the other mode is that a hard tubular liquid inlet is arranged on the collecting bottle, and the end part of the soft drainage tube is sleeved outside the liquid inlet.
Under the circumstances such as the collecting bottle is full of needs to be changed, often need to relieve temporarily being connected between drainage tube and the collecting bottle, at this moment, be full of in the drainage tube from the internal or the liquid of wound surface drainage play of patient, in 2 kinds of main connected modes between drainage tube and the collecting bottle, whatever kind, all can lead to the liquid in the junction pipeline to spill over when relieving the connection, cause the pollution and cause psychological or physiological injury for operator or nursing staff even.
The solution that spills over to the liquid in the pipeline among the prior art sets up only liquid clamp in the both sides of the junction between drainage tube and the receiving flask usually, but even there is only liquid clamp's existence, the liquid in the junction pipeline between drainage tube and the receiving flask still can not the evacuation, when removing the connection, still has liquid leakage.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a negative pressure drainage tube, it is equipped with the valve between drainage tube and receiving flask, when drainage tube and receiving flask relieved the connection, can effectively prevent that the liquid of drainage tube and receiving flask junction from spilling over.
The technical scheme of the utility model is that:
negative pressure drainage tube, including the distal end of feed liquor and the near-end of play liquid, the near-end of negative pressure drainage tube is equipped with the valve, the valve includes:
the device comprises a tubular shell, wherein a liquid inlet, a liquid outlet and an air inlet are arranged on the side surface of a curved surface of the shell, the axis of the liquid inlet, the axis of the liquid outlet and the axis of the air inlet are positioned on the same radial section of the shell, the intersection point of the axis of the liquid inlet, the axis of the liquid outlet and the axis of the air inlet is positioned on the axis of the shell, and the radial section where the axis of the liquid inlet, the axis of the liquid outlet and the axis of the air inlet are positioned;
the radial section of the shell is a section vertical to the axis of the shell, the radial section of the shell is a circle, the liquid inlet, the liquid outlet and the air inlet are uniformly distributed on the circumference of the circle, and the central angle corresponding to the arc between every two adjacent ports is 120 degrees.
The cylindrical core that revolves with the coaxial setting of casing, the surface of the curved surface side of revolving the core and the internal surface interference fit of casing, the curved surface side of revolving the core is equipped with first hole and second hole, first hole and second hole are being linked together at the core inside soon, the cavity of connecting first hole and second hole is for revolving the inner closed cavity of core, first hole and second hole are located the same radial cross section of revolving the core, on the radial cross section at first hole and second hole place, the central angle that the arc between first hole and the second hole corresponds is 120.
The radial cross-section of the spin core refers to a cross-section perpendicular to the spin core axis. After the shell and the rotary core are assembled, the radial cross sections of the axis of the liquid inlet, the axis of the liquid outlet and the axis of the air inlet coincide with the radial cross sections of the first hole and the second hole.
Through will revolve the core for the casing is rotatory, make first aperture alignment inlet, the second aperture alignment liquid outlet, be linked together between inlet and the liquid outlet this moment, the liquid outlet is connected with negative pressure device through the receiving flask, the inlet passes through the pipeline with the position that the human body needs the water conservancy diversion and links to each other, and the negative pressure drainage pipe forms a closed route.
When the receiving flask needs to be changed, will revolve the core and rotate 120 for the casing, make the second pore pair air inlet, the liquid outlet is aimed at to first pore pair, the inlet is sealed by revolving the core, the liquid outlet is linked together with the air inlet, under the effect of negative pressure attraction, revolve the cavity between first hole and the second hole in the core, liquid in the pipeline between liquid outlet and the receiving flask all is makeed out vacuum, in the operation process that removes the drainage tube and receiving flask and be connected, then there is not liquid to spill over or splash, even there is a small amount of liquid to adhere to at the pipeline inner wall under the effect of surface tension, also can not flow outside the pipeline.
Preferably, the rotary core is made of polyethylene material, which has certain elasticity and can provide enough interference between the shell and the rotary core for satisfying the relative sealing between the shell and the rotary core.
The top surface or the bottom surface of the rotary core is provided with a knob. The knob is coaxially arranged with the rotary core and is used for assisting the rotary core to rotate relative to the shell.
Preferably, the rotary core is provided with a locking device for limiting the relative movement of the rotary core in the axial direction of the rotary core relative to the shell, and the locking device comprises buckles positioned at two ends of the rotary core.
Be equipped with on the casing with knob matched with 2 limit stop, under limit stop's effect, the rotation angle of knob only has 120, and the knob is close to 1 limit stop, and the inlet and the liquid outlet of valve are linked together, and the knob is close to another limit stop, and the air inlet and the liquid outlet of valve are linked together.
And one end of the liquid outlet, which is far away from the shell, is provided with a luer joint.
The inner diameter of the liquid outlet is gradually increased from one end close to the shell to one end far away from the shell.
Preferably, the liquid outlet and the collection bottle are connected through a hose made of rubber or silica gel. The liquid inlet is fixedly communicated with the pipeline main body of the drainage tube, and the air inlet is kept in a normally open state.
The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, when the drainage tube is disconnected with the collecting bottle, liquid in the pipeline cannot leak, and pollution is reduced.
Drawings
FIG. 1 is a schematic front view of a valve
FIG. 2 is a sectional view of an axial section of the valve
FIG. 3 is a cross-sectional view of a radial cross-section of a valve
In the figure:
1. a shell 2, a rotary core 3 and a liquid inlet
4. Liquid outlet 5, air inlet 6 and knob
7. Limit stop 8, buckle 21, first hole
22. Second hole
Detailed Description
As shown in fig. 1-3, the utility model discloses
Negative pressure drainage tube, including the distal end of feed liquor and the near-end of play liquid, the near-end of negative pressure drainage tube is equipped with the valve, the valve includes:
the device comprises a tubular shell 1, wherein a liquid inlet 3, a liquid outlet 4 and an air inlet 5 are arranged on the side surface of a curved surface of the shell 1, the axis of the liquid inlet 3, the axis of the liquid outlet 4 and the axis of the air inlet 5 are positioned on the same radial section of the shell 1, the intersection point of the axis of the liquid inlet 3, the axis of the liquid outlet 4 and the axis of the air inlet 5 is positioned on the axis of the shell 1, and the radial section where the axis of the liquid inlet 3, the axis of the liquid outlet 4 and the axis of the air inlet 5 are tris;
The radial cross section where the axis of the liquid inlet 3, the axis of the liquid outlet 4 and the axis of the air inlet 5 are located coincides with the radial cross section where the first hole and the second hole are located.
The rotary core 2 is made of polyethylene material, which has certain elasticity and can provide enough interference between the shell 1 and the rotary core 2 for satisfying the relative sealing between the shell 1 and the rotary core 2.
The top surface or the bottom surface of the rotary core 2 is provided with a knob 6. The knob 6 is disposed coaxially with the rotary core 2 for assisting the rotation of the rotary core 2 relative to the housing 1.
The rotary core 2 is provided with locking means for restricting the relative movement of the rotary core 2 with respect to the housing 1 in the axial direction thereof, said locking means comprising catches 8 at both ends of the rotary core 2.
Be equipped with 2 limit stop 7 with knob 6 matched with on casing 1, under limit stop 7's effect, the rotation angle of knob is only 120, and the knob is close to 1 limit stop 7, and the inlet 3 and the liquid outlet 4 of valve are linked together, and knob 6 is close to another limit stop 7, and the air inlet 5 and the liquid outlet 4 of valve are linked together.
And one end of the liquid outlet 4, which is far away from the shell 1, is provided with a luer joint.
The inner diameter of the liquid outlet 4 is gradually increased from one end close to the shell 1 to one end far away from the shell 1.
Preferably, the connection between the liquid outlet 4 and the collection bottle can be communicated through a hose made of rubber or silica gel.
The working process of the example is as follows:
the air inlet 3 is connected with one end of a pipeline main body of the negative pressure drainage tube, and the other end of the pipeline main body is connected in the body of a patient or on a wound surface.
The valve includes an open state and a closed state.
An on state:
the rotary core 2 is rotated relative to the shell 1, so that the first hole 21 is aligned to the liquid inlet 3, the second hole 22 is aligned to the liquid outlet 4, the liquid inlet 3 and the liquid outlet 4 are communicated, the liquid outlet 4 is connected with a negative pressure device through a collecting bottle, the liquid inlet 3 is connected with a human body flow guide part through a pipeline main body, and the negative pressure drainage tube forms a closed passage.
When the collecting bottle needs to be replaced, the rotary core is rotated by 120 degrees relative to the shell,
an off state:
the second hole 22 is aligned with the air inlet 5, the first hole 21 is aligned with the liquid outlet 4, the liquid inlet 3 is sealed by the rotary core 2, the liquid outlet 4 is communicated with the air inlet 5,
under the effect of negative pressure suction, the liquid in the pipeline between the cavity between the first hole 21 and the second hole 22 in the rotary core 2 and the liquid outlet 4 and the collecting bottle is evacuated, and in the operation process of removing the connection between the drainage tube and the collecting bottle, no liquid overflows or splashes, and even if a small amount of liquid is attached to the inner wall of the pipeline under the effect of surface tension, the liquid cannot flow out of the pipeline.
After the use is finished, the valve is screwed to be in a closed state, and the negative pressure drainage tube is integrally removed from the patient.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (4)
1. Negative pressure drainage tube, the near-end of the distal end and play liquid of including the feed liquor, its characterized in that, negative pressure drainage tube's near-end is equipped with the valve, the valve includes:
the device comprises a tubular shell, wherein a liquid inlet, a liquid outlet and an air inlet are arranged on the side surface of the shell, the axis of the liquid inlet, the axis of the liquid outlet and the axis of the air inlet are positioned on the same radial section of the shell, the radial section where the axis of the liquid inlet, the axis of the liquid outlet and the axis of the air inlet are positioned is trisected, and the intersection point of the axis of the liquid inlet, the axis of the liquid outlet and the axis of the air inlet is positioned on the axis of the shell;
the cylindrical rotary core is coaxial with the shell, the outer surface of the curved surface side face of the rotary core is in interference fit with the inner surface of the shell, the curved surface side face of the rotary core is provided with a first hole and a second hole, the first hole and the second hole are communicated in the rotary core, the first hole and the second hole are positioned on the same radial section of the rotary core, and on the radial section where the first hole and the second hole are positioned, the central angle corresponding to the arc between the first hole and the second hole is 120 degrees.
2. The negative pressure drain of claim 1, wherein: the top surface or the bottom surface of the rotary core is provided with a knob.
3. The negative pressure drain of claim 1, wherein: and one end of the liquid outlet, which is far away from the shell, is provided with a luer joint.
4. The negative pressure drain of claim 1, wherein: the inner diameter of the liquid outlet is gradually increased from one end close to the shell to one end far away from the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920824900.6U CN211024670U (en) | 2019-06-03 | 2019-06-03 | Negative pressure drainage tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920824900.6U CN211024670U (en) | 2019-06-03 | 2019-06-03 | Negative pressure drainage tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211024670U true CN211024670U (en) | 2020-07-17 |
Family
ID=71563661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920824900.6U Expired - Fee Related CN211024670U (en) | 2019-06-03 | 2019-06-03 | Negative pressure drainage tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211024670U (en) |
-
2019
- 2019-06-03 CN CN201920824900.6U patent/CN211024670U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 Termination date: 20210603 |