CN211356992U - Negative pressure drainage device for ear reconstruction - Google Patents
Negative pressure drainage device for ear reconstruction Download PDFInfo
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- CN211356992U CN211356992U CN201920959824.XU CN201920959824U CN211356992U CN 211356992 U CN211356992 U CN 211356992U CN 201920959824 U CN201920959824 U CN 201920959824U CN 211356992 U CN211356992 U CN 211356992U
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- negative pressure
- drainage
- drainage device
- tube
- regulating valve
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Abstract
The utility model relates to an ear is made negative pressure drainage device again, it includes: one side of the injection tube is a concave curved surface which can be attached to the forehead; the tail part of the plunger is provided with a handle, and the inner side surface of the handle is provided with a convex buckle; the tail end surface of the clamping rod is provided with a groove corresponding to the convex buckle; the front end of the clamping rod is in a step shape, and the head part of the clamping rod can extend into the space between the injection tube and the plunger piston; the tail end of the drainage tube is provided with a conical connector; the first channel of the three-way regulating valve is a sleeve joint connected with an injection port arranged at the front end of the injection tube; the second port of the three-way regulating valve is communicated with the atmosphere; and the third tee of the three-way regulating valve is a plug-in connector connected with the conical connector. The utility model discloses a steerable negative pressure of negative pressure drainage device is reproduced to ear can keep the negative pressure to last to exist, and is convenient for fix the ear of forehead and reproduces negative pressure drainage device.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to ear is made negative pressure drainage device again.
Background
After auricle reconstruction surgery, the surgical wound can have blood and tissue fluid exudation, dead space can be generated, the application of skin flap and cartilage is affected, in order to realize the good surgical effect of the reconstructed auricle, the exuded blood and tissue fluid need to be sucked out in time, the application of skin flap and cartilage is ensured, and the dead space is eliminated. The existing drainage device lacks a special negative pressure drainage device to lead out seepage, but a simple device with a syringe provided with a hose is usually adopted for extraction, so that on one hand, the negative pressure cannot be controlled, the drainage quantity cannot be accurately measured, and the continuous existence of the negative pressure cannot be maintained when the drainage liquid is poured; on the other hand, the common syringe is cylindrical and is inconvenient to fix.
SUMMERY OF THE UTILITY MODEL
Lack the technical problem that special negative pressure drainage device draws forth the sepage after reproducing the operation to auricle among the prior art, the utility model aims to provide a steerable negative pressure can keep the negative pressure to last to exist, and is convenient for fix the ear reconstruction negative pressure drainage device at the forehead.
The utility model discloses an ear is rebuild negative pressure drainage device includes:
one side of the injection tube is a concave curved surface which can be attached to the forehead;
the front end of the plunger is connected with a piston which is hermetically and slidably matched in the injection cylinder; the tail of the plunger is provided with a handle, and the inner side surface of the handle is provided with a convex buckle;
the tail end surface of the clamping rod is provided with a groove corresponding to the convex buckle; the front end of the clamping rod is in a step shape, and the head part of the clamping rod can extend into the space between the injection tube and the plunger piston;
the tail end of the drainage tube is provided with a conical connector, the head end of the drainage tube is closed, a 3-6 cm part of the front end of the drainage tube is a drainage hole section, and a plurality of drainage holes are formed in the drainage hole section at intervals;
the first channel of the three-way regulating valve is a sleeve joint connected with an injection port arranged at the front end of the injection tube; the second port of the three-way regulating valve is communicated with the atmosphere; and the third tee of the three-way regulating valve is a plug-in connector connected with the conical connector.
Preferably, the cross section of the trunk part of the plunger is cross-shaped; the clamping rod is cuboid.
Preferably, the conical joint is made of flexible materials, a fastening nut is screwed outside the plug joint, and a through hole is formed in the fastening nut and is used for the conical joint to penetrate through; the fastening nut is screwed downwards to fasten the conical connector on the plug connector.
Preferably, the second port of the three-way regulating valve is provided with a sealing nut.
Preferably, the diameter of the drainage tube is 1.5-2.5 mm, preferably 2mm, and the length of the drainage tube is 10-30 cm, preferably 20 cm.
Preferably, the drainage holes are alternately positioned on two sides of the drainage hole section, and the intervals of the drainage holes on the same side along the direction of the drainage pipe are 0.5-1.2 cm, preferably 0.6-1 cm.
Preferably, the volume of the injection cylinder is 5-10 mL.
The utility model has the advantages that:
1. the utility model discloses an appearance structure of negative pressure drainage device is reproduced to the ear has carried out optimization improvement, and one side is the curved surface that can paste the forehead of spill, and the syringe is erect and is pasted the position at the nearly temple angle of forehead, compares in ordinary syringe, the curved surface has great area of contact with patient's head, is convenient for more fixed.
2. The utility model discloses a set up the kelly with the tee bend governing valve can conveniently adjust the negative pressure and maintain the negative pressure. The three-way regulating valve is regulated to close the second passage communicated with the atmosphere, negative pressure can be generated in the injection tube after the plunger is pulled, and then the clamping rod is clamped between the handle and the injection tube, so that the plunger can be prevented from falling back, and the negative pressure can be maintained. During the period, the three-way regulating valve can be regulated to put air to regulate the negative pressure.
3. The utility model discloses a handle medial surface sets up protruding knot, simultaneously kelly tail end face sets up the recess to, the kelly front end still sets up the card of echelonment and goes into the head of injection tube, above-mentioned structural grouping can realize the location of kelly drops when avoiding patient's head to remove.
Drawings
Fig. 1 is a schematic view of an ear reconstruction negative pressure drainage device of the present invention;
fig. 2 is a schematic exploded view of the ear reconstruction negative pressure drainage device of the present invention;
fig. 3 is a schematic view of the inside of the clamping bar of the present invention.
Reference numerals
An injection tube 1, a curved surface 11;
plunger 2, trunk 21, piston 22, handle 23, convex button 24;
the clamping rod 3, the groove 31 and the head 32;
a drainage tube 4, a conical joint 41 and a drainage hole 42;
three-way regulating valve 5, socket joint 51, sealing nut 52, plug joint 53 and fastening nut 54.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.
Example 1
Fig. 1 shows a negative pressure drainage device for ear reconstruction according to a preferred embodiment of the present invention, which includes an injection tube 1, a plunger 2, a clamping rod 3, a drainage tube 4 and a three-way regulating valve 5.
As shown in fig. 2, the syringe 1 has a concave curved surface 11 on one side for fitting the forehead. The cross section of the main part 21 of the plunger 2 is cross-shaped, the front end of the plunger 2 is connected with a piston 22, and the piston 22 is hermetically and slidably matched in the syringe 1; the tail part of the plunger 2 is provided with a handle 23, and the inner side surface of the handle 23 is provided with a convex buckle 24.
As shown in fig. 3, the clamping rod 3 is rectangular, and the end surface is provided with a groove 31 corresponding to the convex buckle 24; the front end of the catch lever 3 is stepped, and the head 32 can extend into the space between the syringe 1 and the plunger 2.
The tail end of the drainage tube 4 is provided with a flexible conical joint 41, the head end of the drainage tube 4 is closed, the part 3-6 cm away from the front end of the drainage tube 4 is a drainage hole section, and a plurality of drainage holes 42 are formed in the two sides of the drainage hole section at intervals.
The first channel of the three-way regulating valve 5 is a socket joint 51 connected with an injection port arranged at the front end of the injection tube 1; the second port of the three-way regulating valve 5 can be communicated with the atmosphere and is provided with a sealing nut 52; the third part of the three-way regulating valve 5 is a plug-in connector 53 connected with the conical connector 41. A fastening nut 54 is screwed outside the plug 53, and the fastening nut 54 is provided with a through hole for the conical joint 41 to pass through; the tightening nut 54 is screwed down to tighten the cone fitting 41 onto the spigot 53.
Preferably, the diameter of the draft tube 4 is 1.5 to 2.5mm, preferably 2mm, and the length is 10 to 30cm, preferably 20 cm.
Preferably, the drainage holes 42 are alternately positioned at two sides of the drainage hole section, and the interval of the drainage holes 42 at the same side along the direction of the drainage tube is 0.5-1.2 cm, preferably 0.6-1 cm.
Preferably, the volume of the syringe 1 is 5-10 mL.
The using method comprises the following steps:
the assembly is carried out by comparing with the figure 1, the drainage hole section is arranged at the position of the costal cartilage ear support otoboat or the cavum concha, and the drainage tube 4 is fixed on the skin by a suture penetrating through the skin to prevent the drainage tube from falling out.
Then adjust three-way governing valve 5 and close the second of atmospheric intercommunication and the third tee bend of intercommunication drainage tube, behind the pull plunger 2, can produce the negative pressure in the injection tube 1, then block 3 cards of kelly between handle 23 and injection tube 1, can prevent that plunger 2 from falling back to this can maintain the negative pressure. The regulating three-way regulating valve is communicated with a first way and a third way, and seepage can enter the device through the drainage hole section and then be led into the injection cylinder in the presence of negative pressure. When the injection cylinder needs to be replaced, the three-way regulating valve 5 is closed.
In actual work, the adjustable three-way adjusting valve 5 is used for adjusting the negative pressure by putting air into the valve to adjust the negative pressure according to the blood circulation condition of skin flaps of different patients, so that the application of the skin flaps and the cartilage is promoted, and a good operation effect of reproducing auricles is realized.
The positive effects of the utility model include but not limited to following several:
1. the utility model discloses an ear is reproduced negative pressure drainage device and is optimized the improvement to the overall structure of injection tube 1, and one side is the curved surface that can paste the forehead of spill, and the injection tube is erect and is pasted the position at the nearly temple of forehead, compares in ordinary injection tube, and the curved surface has great area of contact with patient's head, is convenient for more fixed.
2. The utility model discloses a set up kelly 3 and tee bend governing valve 5, can conveniently adjust the negative pressure and maintain the negative pressure.
3. The utility model discloses a medial surface at handle 23 sets up protruding knot 24, and 3 tail end faces of kelly set up the recess 31 to simultaneously, and 3 front ends of kelly still set up the head 32 that can block into the injection tube of echelonment, and the location of kelly can be realized to above-mentioned structural grouping, drops when avoiding patient's head to remove.
While the preferred embodiments of the present invention have been described in detail, it will be understood that the invention is not limited thereto, and that various modifications and substitutions of equivalents may be made by those skilled in the art without departing from the scope of the invention as defined in the appended claims.
Claims (6)
1. An ear reconstruction negative pressure drainage device, comprising:
one side of the injection tube is a concave curved surface which can be attached to the forehead;
the front end of the plunger is connected with a piston which is hermetically and slidably matched in the injection cylinder; the tail of the plunger is provided with a handle, and the inner side surface of the handle is provided with a convex buckle;
the tail end surface of the clamping rod is provided with a groove corresponding to the convex buckle; the front end of the clamping rod is in a step shape, and the head part of the clamping rod can extend into the space between the injection tube and the plunger piston;
the tail end of the drainage tube is provided with a conical connector, the head end of the drainage tube is closed, a 3-6 cm part of the front end of the drainage tube is a drainage hole section, and a plurality of drainage holes are formed in the drainage hole section at intervals;
the first channel of the three-way regulating valve is a sleeve joint connected with an injection port arranged at the front end of the injection tube; the second port of the three-way regulating valve is communicated with the atmosphere; and the third tee of the three-way regulating valve is a plug-in connector connected with the conical connector.
2. The ear reconstruction negative pressure drainage device of claim 1, wherein the trunk portion of the plunger is cross-shaped in cross-section; the clamping rod is cuboid.
3. The ear reconstruction negative pressure drainage device as claimed in claim 1, wherein the conical joint is a joint made of flexible material, a fastening nut is screwed outside the plug joint, and the fastening nut is provided with a through hole for the conical joint to pass through; the fastening nut is screwed downwards to fasten the conical connector on the plug connector.
4. The ear reconstruction negative pressure drainage device of claim 1, wherein the second port of the three-way regulating valve is fitted with a sealing nut.
5. The ear reconstruction negative pressure drainage device according to claim 1, wherein the drainage tube has a diameter of 1.5 to 2.5mm and a length of 10 to 30 cm.
6. The ear reconstruction negative pressure drainage device according to claim 1, wherein the drainage holes are alternately positioned at both sides of the drainage hole section, and the interval of the drainage holes at the same side along the direction of the drainage tube is 0.5-1.2 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920959824.XU CN211356992U (en) | 2019-06-25 | 2019-06-25 | Negative pressure drainage device for ear reconstruction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920959824.XU CN211356992U (en) | 2019-06-25 | 2019-06-25 | Negative pressure drainage device for ear reconstruction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211356992U true CN211356992U (en) | 2020-08-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920959824.XU Active CN211356992U (en) | 2019-06-25 | 2019-06-25 | Negative pressure drainage device for ear reconstruction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211356992U (en) |
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2019
- 2019-06-25 CN CN201920959824.XU patent/CN211356992U/en active Active
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