CN214969828U - Negative pressure drainage protective cap - Google Patents
Negative pressure drainage protective cap Download PDFInfo
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- CN214969828U CN214969828U CN202120829708.3U CN202120829708U CN214969828U CN 214969828 U CN214969828 U CN 214969828U CN 202120829708 U CN202120829708 U CN 202120829708U CN 214969828 U CN214969828 U CN 214969828U
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- cap
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- 230000001681 protective effect Effects 0.000 title claims abstract description 10
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 206010052428 Wound Diseases 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
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Abstract
The application provides a negative pressure drainage protective cap, its characterized in that includes: a first sub-cap and a second sub-cap; the first sub cap is formed into a cylinder shape, and the first end of the first sub cap is used for being connected with the drainage tube; the second sub cap is formed into a cylinder shape, and the second end of the second sub cap is used for being connected with the negative pressure pipe; the second end of the first sub-cap is provided with an external thread; the first end of the second sub-cap is provided with an internal thread corresponding to the first end; when the second end of the first sub-cap and the first end of the second sub-cap are combined together through the external thread and the internal thread, the second cylinder and the fourth cylinder are opposite to each other and are pressed against each other, so that the first spring and the second spring are compressed, the first cylinder moves towards the first end of the first sub-cap, the passage inside the first sub-cap is opened, the third cylinder moves towards the second end of the second sub-cap, and the passage inside the second sub-cap is opened.
Description
Technical Field
The application relates to a medical instrument, in particular to a negative pressure drainage protective cap.
Background
Closed negative pressure suction therapy (VSD) is a common method for wound treatment, and is to cover or fill a medical foam dressing containing a drainage tube on a wound and seal the wound by a semipermeable membrane. The drainage tube is connected with the disposable negative pressure suction tube and then is connected with a negative pressure source, the wound surface can be closed to be communicated with the outside through continuous negative pressure suction, and the risk of infection is reduced. In the clinical use process, a patient usually disconnects the drainage tube from the disposable negative pressure suction tube due to toilet access, activity, outgoing inspection and the like, and if the drainage tube joint is not protected from dirt or pollution after disconnection, the wound surface can be communicated with the outside, the risk of wound surface infection is increased, and a method of finding the joint parts at two sides of the gauze wrapping is adopted in the clinical use.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present application aims to provide a negative pressure drainage protection cap which, on the one hand, easily connects or disconnects the drainage tube to or from the negative pressure tube, and, on the other hand, ensures that the drainage tube and the negative pressure tube are closed from external contamination when disconnected.
The application discloses negative pressure drainage protective cap, it includes: a first sub-cap and a second sub-cap;
the first sub cap is formed into a cylinder shape, and the first end of the first sub cap is used for being connected with the drainage tube; a first column body and a second column body are arranged in the cylinder; the second cylinder is integrally formed at the second end of the first cylinder; the diameter of the first cylinder is larger than that of the second cylinder; a first accommodating space is formed inside the first sub-cap; the second end of the second cylinder extends to the outside from the second end of the first sub-cap; gaps are formed between the second cylinder and the inner wall of the second end of the first sub-cap and between the first cylinder and the first accommodating space; a first compression spring is arranged between the first end of the first column and the first accommodating space; the diameter of the first cylinder is larger than the inner diameter of the second end of the first sub-cap; the first compression spring pushes the first cylinder to press against the sidewall of the second end of the first receiving space, whereby the internal passage of the first sub-cap is blocked;
the second sub cap is formed into a cylinder shape, and the second end of the second sub cap is used for being connected with the negative pressure pipe; a third column and a fourth column are arranged in the cylinder; the fourth cylinder is integrally formed at the first end of the third cylinder; the diameter of the third cylinder is larger than that of the fourth cylinder; a second accommodating space is formed inside the second sub-cap; an annular baffle is formed in the first end of the second sub-cap; the first end of the fourth cylinder extends beyond the annular baffle; gaps are formed between the fourth cylinder and the annular baffle and between the third cylinder and the second accommodating space; a second compression spring is arranged between the second end of the third column and the second accommodating space; the diameter of the third cylinder is larger than the inner diameter of the first end of the second sub-cap; the second compression spring pushes the third cylinder to press against the sidewall of the first end of the second receiving space, whereby the internal passage of the second sub-cap is blocked;
the second end of the first sub-cap is provided with an external thread; the first end of the second sub-cap is provided with an internal thread corresponding to the first end; when the second end of the first sub-cap and the first end of the second sub-cap are combined together through the external thread and the internal thread, the second cylinder and the fourth cylinder are opposite to each other and are pressed against each other, so that the first spring and the second spring are compressed, the first cylinder moves towards the first end of the first sub-cap, the passage inside the first sub-cap is opened, the third cylinder moves towards the second end of the second sub-cap, and the passage inside the second sub-cap is opened.
Preferably, the first and second compression springs are identical.
Preferably, the second cylinder and the fourth cylinder have the same diameter.
The first sub-cap and the second sub-cap of the negative pressure drainage protection cap are respectively arranged on the drainage tube and the negative pressure tube, when the drainage tube and the negative pressure tube are disconnected, the first sub-cap can seal the drainage tube, and the second sub-cap can seal the negative pressure tube; when the negative pressure suction device is used, only the first sub-cap and the second sub-cap are connected together, the passages of the two sub-caps are opened, and the negative pressure suction can be continued.
Drawings
Fig. 1 is a schematic cross-sectional view of the negative pressure drainage protection cap of the present application;
fig. 2 is a left side view schematic structure diagram of the first sub-cap of the negative pressure drainage protection cap of the present application;
fig. 3 is a front view of the first sub-cap of the negative pressure drainage protection cap of the present application;
fig. 4 is a right structural schematic view of a first sub-cap of the negative pressure drainage protection cap of the present application;
FIG. 5 is a schematic cross-sectional view of a first sub-cap of the vacuum drainage protection cap of the present application in a compressed state;
FIG. 6 is a schematic cross-sectional view of the natural state of the first sub-cap of the negative pressure drainage protection cap of the present application;
fig. 7 is a left side view schematic structure diagram of a second sub-cap of the negative pressure drainage protection cap of the present application;
fig. 8 is a front view of a second sub-cap of the negative pressure drainage protection cap of the present application;
fig. 9 is a right structural view of a second sub-cap of the negative pressure drainage protection cap of the present application;
FIG. 10 is a schematic cross-sectional view of a second sub-cap of the vacuum drainage protection cap of the present application in a compressed state;
fig. 11 is a cross-sectional view schematically illustrating a natural state of the second sub-cap of the negative pressure drainage protection cap of the present application.
Detailed Description
The negative pressure drainage protective cap of the present application will be described in detail with reference to the accompanying drawings.
The application discloses negative pressure drainage protective cap, it includes: a first sub-cap 10 and a second sub-cap 20.
The first sub-cap 10 is formed in a cylindrical shape as shown in fig. 2 to 6. The first end 11 of the drainage tube is used for connecting the drainage tube; a first cylinder 14 and a second cylinder 13 are arranged in the cylinder; the second cylinder 13 is integrally formed at a second end of the first cylinder 14; the diameter of the first cylinder 14 is larger than that of the second cylinder 13; a first receiving space is formed inside the first sub-cap 10; the second end of the second cylinder 13 extends from the second end 12 of the first sub-cap 10 to the outside.
Gaps are formed between the second cylinder 13 and the inner wall of the second end of the first sub-cap 10 and between the first cylinder 14 and the first accommodating space; a first compression spring 15 is arranged between the first end of the first column 14 and the first accommodating space; the diameter of the first cylinder 14 is larger than the inner diameter of the second end of the first sub-cap 10; the first compression spring 15 pushes the first cylinder 14 to be pressed against the sidewall of the second end of the first receiving space, whereby the internal passage of the first sub-cap is blocked, as shown in fig. 6.
The second sub cap 20 is formed in a cylindrical shape, and a second end 21 thereof is used for connecting to a negative pressure pipe. A third column 24 and a fourth column 23 are arranged in the cylinder; the fourth cylinder 23 is integrally formed at a first end of the third cylinder 24; the third cylinder 24 has a larger diameter than the fourth cylinder 23; a second receiving space is formed inside the second sub-cap 20; an annular baffle plate 22 is formed in the first end of the second sub-cap 20; a first end of the fourth cylinder 23 extends beyond the annular baffle 22; gaps are formed between the fourth column 23 and the annular baffle 22 and between the third column 24 and the second accommodating space; a second compression spring 25 is arranged between the second end of the third cylinder 24 and the second accommodating space; the diameter of the third cylinder 24 is larger than the inner diameter of the first end of the second sub-cap 20; the second compression spring 25 pushes the third cylinder 24 to be pressed against the sidewall of the first end of the second receiving space, whereby the inner passage of the second sub-cap is blocked, as shown in fig. 11.
The second end of the first sub cap 10 is formed with an external thread; the first end of the second sub-cap 20 is formed with an internal thread corresponding thereto; when the second end of the first sub-cap and the first end of the second sub-cap are coupled together by the external thread and the internal thread, as shown in fig. 1, the second cylinder 13 and the fourth cylinder 23 face each other and press each other, so that the first and second springs 15 and 25 are compressed, the first cylinder 14 moves toward the first end of the first sub-cap 10, the passage inside the first sub-cap 10 is opened, as shown in fig. 5, the third cylinder 24 moves toward the second end of the second sub-cap 20, and the passage inside the second sub-cap is opened, as shown in fig. 10.
The first and second compression springs 15, 25 are identical. The second cylinder 13 and the fourth cylinder 23 have the same diameter.
When the negative pressure tube is connected with the drainage tube to perform negative pressure suction, the first sub-cap and the second sub-cap of the negative pressure drainage protection cap of the application are connected together, the channels in the first sub-cap and the second sub-cap are opened as shown in figure 1, and negative pressure can be provided through the channels. When the first sub-cap and the second sub-cap need to be disconnected, the first sub-cap and the second sub-cap are rotated and unscrewed, and under the action of the first compression spring and the second compression spring, the first column and the third column move to block passages in the first sub-cap and the second sub-cap, so that the effect of isolating external pollution is achieved.
Claims (3)
1. The utility model provides a negative pressure drainage protective cap which characterized in that includes: a first sub-cap and a second sub-cap;
the first sub cap is formed into a cylinder shape, and the first end of the first sub cap is used for being connected with the drainage tube; a first column body and a second column body are arranged in the cylinder; the second cylinder is integrally formed at the second end of the first cylinder; the diameter of the first cylinder is larger than that of the second cylinder; a first accommodating space is formed inside the first sub-cap; the second end of the second cylinder extends to the outside from the second end of the first sub-cap; gaps are formed between the second cylinder and the inner wall of the second end of the first sub-cap and between the first cylinder and the first accommodating space; a first compression spring is arranged between the first end of the first column and the first accommodating space; the diameter of the first cylinder is larger than the inner diameter of the second end of the first sub-cap; the first compression spring pushes the first cylinder to press against the sidewall of the second end of the first receiving space, whereby the internal passage of the first sub-cap is blocked;
the second sub cap is formed into a cylinder shape, and the second end of the second sub cap is used for being connected with the negative pressure pipe; a third column and a fourth column are arranged in the cylinder; the fourth cylinder is integrally formed at the first end of the third cylinder; the diameter of the third cylinder is larger than that of the fourth cylinder; a second accommodating space is formed inside the second sub-cap; an annular baffle is formed in the first end of the second sub-cap; the first end of the fourth cylinder extends beyond the annular baffle; gaps are formed between the fourth cylinder and the annular baffle and between the third cylinder and the second accommodating space; a second compression spring is arranged between the second end of the third column and the second accommodating space; the diameter of the third cylinder is larger than the inner diameter of the first end of the second sub-cap; the second compression spring pushes the third cylinder to press against the sidewall of the first end of the second receiving space, whereby the internal passage of the second sub-cap is blocked;
the second end of the first sub-cap is provided with an external thread; the first end of the second sub-cap is provided with an internal thread corresponding to the first end; when the second end of the first sub-cap and the first end of the second sub-cap are combined together through the external thread and the internal thread, the second cylinder and the fourth cylinder are opposite to each other and are pressed against each other, so that the first spring and the second spring are compressed, the first cylinder moves towards the first end of the first sub-cap, the passage inside the first sub-cap is opened, the third cylinder moves towards the second end of the second sub-cap, and the passage inside the second sub-cap is opened.
2. The negative pressure drainage protective cap of claim 1, wherein:
the first and second compression springs are identical.
3. The negative pressure drainage protective cap of claim 1, wherein:
the second cylinder and the fourth cylinder have the same diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120829708.3U CN214969828U (en) | 2021-04-21 | 2021-04-21 | Negative pressure drainage protective cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120829708.3U CN214969828U (en) | 2021-04-21 | 2021-04-21 | Negative pressure drainage protective cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214969828U true CN214969828U (en) | 2021-12-03 |
Family
ID=79094362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120829708.3U Active CN214969828U (en) | 2021-04-21 | 2021-04-21 | Negative pressure drainage protective cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214969828U (en) |
-
2021
- 2021-04-21 CN CN202120829708.3U patent/CN214969828U/en active Active
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