CN216394873U - Subcutaneous effusion negative pressure drainage device of adjustable negative pressure - Google Patents
Subcutaneous effusion negative pressure drainage device of adjustable negative pressure Download PDFInfo
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- CN216394873U CN216394873U CN202122563673.6U CN202122563673U CN216394873U CN 216394873 U CN216394873 U CN 216394873U CN 202122563673 U CN202122563673 U CN 202122563673U CN 216394873 U CN216394873 U CN 216394873U
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Abstract
The utility model discloses a subcutaneous effusion negative pressure drainage device with adjustable negative pressure, which comprises a negative pressure drainage cylinder, a piston and a threaded push rod, wherein a negative pressure piston cavity is arranged in the negative pressure drainage cylinder, and a connecting pipe is arranged at the top end of the negative pressure drainage cylinder; a step end seat is fixed on the outer part of one end of the negative pressure drainage cylinder, which is far away from the connecting pipe; the piston is fixedly connected with the threaded push rod, the piston is assembled in the negative pressure piston cavity in a sliding fit mode, and a positioning nut matched with the step end seat is installed on the threaded push rod in a threaded mode. The utility model mainly carries out negative pressure drainage on subcutaneous effusion, enables a negative pressure piston cavity to generate a negative pressure environment through the piston movement of the piston, is matched and positioned with the end side of the step end seat through the positioning nut, and can realize negative pressure regulation through the positioning nut; under the extra processing or exogenic action of not needing the nursing, negative pressure piston chamber will produce the negative pressure environment of continuous stability for hydrops negative pressure drainage, has made things convenient for the interim or negative pressure drainage operation of short time of nursing staff greatly, has reduced the drainage nursing degree of difficulty.
Description
Technical Field
The utility model relates to a negative pressure drainage device, in particular to a subcutaneous effusion negative pressure drainage device with adjustable negative pressure.
Background
In medical applications, such as abdominal surgery and the like, a fluid accumulation of tissue is likely to occur under the skin of an incision, and drainage is required to prevent infection, even to affect the therapeutic effect or cause serious complications. For example, in a ventricular operation, the wall of the cerebral drainage tube is generally sealed in a plurality of holes cut at temporary intervals, then buried under the skin and fixed, and then the effusion is led out through an external drainage tube. Can adopt the negative pressure mode to carry out the drainage to subcutaneous hydrops drainage, in the medical field, general negative pressure equipment of bleeding certainly does not adapt (because cause the tissue damage easily), in hospital's practice, most doctor or nursing staff often operate more troublesome, each hospital's negative pressure drainage mode is also different, generally speaking, nursing staff often adopts the injection tube to provide the vacuum (the relative simple and easy or short time drainage of common use), but the injection tube need keep the negative pressure position for a long time (adopt end cap or checkpost to come the card to fix a position the negative pressure position sometimes) and just can provide stable negative pressure environment, hydrops in the injection tube also easily flows backwards otherwise, this has brought very big difficulty for nursing staff's practical operation, it is also inconvenient to operate, negative pressure drainage effect is also not obvious.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art, the utility model aims to provide a subcutaneous effusion negative-pressure drainage device with adjustable negative pressure, a negative-pressure piston cavity generates a negative-pressure environment through the piston movement of a piston, the piston is positioned in a matched manner through a positioning nut and the end side of a step end seat, and the negative-pressure position of the piston in the negative-pressure piston cavity is kept, so that the negative-pressure piston cavity of a negative-pressure drainage cylinder can generate a continuous and stable negative-pressure environment for effusion negative-pressure drainage without nursing extra treatment or external force action, and meanwhile, effusion backflow is avoided.
The purpose of the utility model is realized by the following technical scheme:
a subcutaneous effusion negative pressure drainage device with adjustable negative pressure comprises a negative pressure drainage cylinder, a piston and a threaded push rod, wherein a negative pressure piston cavity is arranged in the negative pressure drainage cylinder, and a connecting pipe communicated with the negative pressure piston cavity is arranged at the top end of the negative pressure drainage cylinder; a step end seat is fixed on the outer part of one end of the negative pressure drainage cylinder, which is far away from the connecting pipe; the piston is fixedly connected with the threaded push rod, the piston is assembled in the negative pressure piston cavity in a sliding fit mode, and a positioning nut matched with the step end seat is installed on the threaded push rod in a threaded mode.
In order to better realize the utility model, a negative pressure piston cavity in the step end seat is an end seat cavity, and the outer diameter of the positioning nut is larger than the aperture of the end seat cavity.
Preferably, the connecting pipe is detachably and hermetically connected with a conduit.
Preferably, the negative pressure piston cavity part of the negative pressure drainage cylinder on the side close to the connecting pipe is in a conical shape, and the piston is matched with the conical part.
Preferably, the end part of the conduit is in sealed splicing communication or threaded connection communication with the connecting pipe.
Preferably, the water suction end part of the catheter is provided with a plurality of drainage holes.
Preferably, the threaded push rod is provided with an external thread along the length direction, and the positioning nut is provided with an internal thread hole in threaded fit with the external thread of the threaded push rod.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
(1) according to the utility model, the piston of the piston moves to enable the negative pressure piston cavity to generate a negative pressure environment, the positioning nut is matched with the end side of the step end seat to position and enable the piston to keep a negative pressure position in the negative pressure piston cavity, and under the condition of no need of nursing extra treatment or external force action, the negative pressure piston cavity of the negative pressure drainage cylinder can generate a continuous and stable negative pressure environment for drainage of accumulated liquid under negative pressure, and meanwhile, the backflow of accumulated liquid is avoided.
(2) The positioning nut can move on the threaded push rod, can determine and adjust the negative pressure position of the piston in the negative pressure piston cavity, namely can realize negative pressure adjustment, and is very convenient and fast to operate.
(3) The utility model mainly aims at carrying out negative pressure drainage on general subcutaneous effusion, has the advantages of compact and practical structure, convenient operation and relatively low cost, greatly facilitates the temporary or short-time negative pressure drainage operation of nursing personnel, reduces the drainage nursing difficulty, and can be repeatedly assembled for carrying out the negative pressure drainage of the effusion.
Drawings
FIG. 1 is a schematic structural view of the present invention after the negative pressure drainage tube is integrally separated from the piston and the threaded push rod;
fig. 2 is a schematic diagram of the practical state of the present invention.
Wherein, the names corresponding to the reference numbers in the drawings are:
1-negative pressure drainage tube, 11-negative pressure piston cavity, 2-step end seat, 21-end seat cavity, 3-connecting tube, 4-piston, 5-threaded push rod, 6-positioning nut, 7-catheter and 71-drainage hole.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
examples
As shown in fig. 1-2, a subcutaneous effusion negative pressure drainage device with adjustable negative pressure comprises a negative pressure drainage cylinder 1, a piston 4 and a threaded push rod 5, wherein a negative pressure piston cavity 11 is arranged inside the negative pressure drainage cylinder 1 (the negative pressure drainage cylinder 1 is made of transparent material in the embodiment), and a connecting pipe 3 communicated with the negative pressure piston cavity 11 is arranged at the top end of the negative pressure drainage cylinder 1. The outside of one end of the negative pressure drainage cylinder 1, which is far away from the connecting pipe 3, is fixed with a step end seat 2, and the step end seat 2 can be convenient for nursing staff to operate and is also convenient for propping up and matching with a positioning nut 6 in negative pressure operation.
The piston 4 is assembled in the negative pressure piston cavity 11 in a sliding fit mode (the piston 4 slides in the negative pressure piston cavity 11 in a sealing mode and generates a negative pressure environment), and the threaded push rod 5 is provided with a positioning nut 6 matched with the step end seat 2 in a threaded mode. As shown in fig. 1, the piston 4 is fixedly connected with the threaded push rod 5, the central axis of the piston 4 and the central axis of the positioning nut 6 coincide, the threaded push rod 5 is provided with an external thread along the length direction, and the positioning nut 6 is provided with an internal thread hole which is in threaded fit with the external thread of the threaded push rod 5.
As shown in fig. 1, the negative pressure piston cavity 11 inside the stepped end seat 2 is an end seat cavity 21, and the outer diameter of the positioning nut 6 is larger than the aperture of the end seat cavity 21 (so that the positioning nut 6 is located at the end side of the stepped end seat 2 under the action of negative pressure and cannot fall into the end seat cavity 21).
As shown in fig. 2, the connecting tube 3 is detachably connected with a conduit 7 in a sealing manner; the water absorbing end part of the conduit 7 is provided with a plurality of drainage holes 71, when in use, the water absorbing end of the conduit 7 is arranged at the subcutaneous effusion part of the human body (which can be fixed or disinfected and sealed by gauze and the like), and the effusion enters the conduit 7 through each drainage hole 71 and then flows into the negative pressure piston cavity 11 of the negative pressure drainage cylinder 1 under the negative pressure action of the negative pressure drainage cylinder 1.
According to a preferred embodiment of the utility model, the negative pressure piston chamber 11 of the negative pressure drainage cylinder 1 on the side close to the connecting tube 3 is partially conical in shape and the piston 4 is fitted with a conical part. Preferably, the end of the conduit 7 is in close plug or threaded communication with the connecting tube 3.
In an initial state, the threaded push rod 5 is pushed and the piston 4 is driven to slide in the negative pressure piston cavity 11 to the bottom of the negative pressure piston cavity 11 (the bottom of the negative pressure piston cavity 11 is one end close to the connecting pipe 3); during the use, place the human subcutaneous hydrops department in with pipe 7 end that absorbs water, pipe 7 corresponds sealed grafting with connecting pipe 3, and pulling screw push rod 5 and drive piston 4 outwards motion (keeping away from negative pressure piston chamber 11 bottom direction motion promptly), piston 4 is the piston motion and produces the negative pressure environment in negative pressure piston chamber 11, moves set nut 6 on screw push rod 5, lets set nut 6 move to the distolateral of step end socket 2 and the holding step end socket 2 distolateral. Because piston 4 piston motion produces the negative pressure environment in negative pressure piston chamber 11, set nut 6 moves 2 distolates of step end seat and top and holds the cooperation location simultaneously (like this piston 4 can not slide in negative pressure piston chamber 11, negative pressure piston chamber 11 just keeps stable negative pressure environment), under the extra processing or exogenic action of need not nursing, negative pressure piston chamber 11 of negative pressure drainage tube 1 will produce and last stable negative pressure environment in order to supply hydrops negative pressure drainage, simultaneously can not worry the hydrops backward flow, after a period or collect a certain amount after, can dismantle pipe 7 and negative pressure drainage tube 1, and clear up the hydrops that negative pressure drainage tube 1 collected, if need can also install and continuously carry out the negative pressure drainage and collect the hydrops.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a subcutaneous hydrops negative pressure drainage device of adjustable negative pressure which characterized in that: the device comprises a negative pressure drainage cylinder (1), a piston (4) and a threaded push rod (5), wherein a negative pressure piston cavity (11) is formed in the negative pressure drainage cylinder (1), and a connecting pipe (3) communicated with the negative pressure piston cavity (11) is formed at the top end of the negative pressure drainage cylinder (1); a step end seat (2) is fixed on the outer part of one end of the negative pressure drainage cylinder (1) far away from the connecting pipe (3); piston (4) and screw thread push rod (5) fixed connection, piston (4) sliding fit assembles in negative pressure piston chamber (11), screw thread installation has and step end seat (2) matched with set nut (6) on screw thread push rod (5).
2. The adjustable negative pressure subcutaneous fluid drainage device according to claim 1, wherein: the negative pressure piston cavity (11) in the step end seat (2) is an end seat cavity (21), and the outer diameter of the positioning nut (6) is larger than the aperture of the end seat cavity (21).
3. The adjustable negative pressure subcutaneous fluid drainage device according to claim 1, wherein: the connecting pipe (3) is detachably connected with a guide pipe (7) in a sealing way.
4. The adjustable negative pressure subcutaneous fluid drainage device according to claim 1, wherein: the negative pressure piston cavity (11) of the negative pressure drainage cylinder (1) close to one side of the connecting pipe (3) is partially in a conical shape, and the piston (4) is matched with a conical part.
5. The adjustable negative pressure subcutaneous fluid drainage device according to claim 3, wherein: the end part of the conduit (7) is in sealed splicing communication or threaded connection communication with the connecting pipe (3).
6. The adjustable negative pressure subcutaneous fluid drainage device according to claim 3, wherein: the water absorbing end part of the conduit (7) is provided with a plurality of drainage holes (71).
7. The adjustable negative pressure subcutaneous fluid drainage device according to claim 1, wherein: the thread push rod (5) is provided with an external thread along the length direction, and the positioning nut (6) is provided with an internal thread hole matched with the external thread of the thread push rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122563673.6U CN216394873U (en) | 2021-10-25 | 2021-10-25 | Subcutaneous effusion negative pressure drainage device of adjustable negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122563673.6U CN216394873U (en) | 2021-10-25 | 2021-10-25 | Subcutaneous effusion negative pressure drainage device of adjustable negative pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216394873U true CN216394873U (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122563673.6U Active CN216394873U (en) | 2021-10-25 | 2021-10-25 | Subcutaneous effusion negative pressure drainage device of adjustable negative pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216394873U (en) |
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2021
- 2021-10-25 CN CN202122563673.6U patent/CN216394873U/en active Active
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