CN219323716U - Portable negative pressure drainage device - Google Patents
Portable negative pressure drainage device Download PDFInfo
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- CN219323716U CN219323716U CN202223423636.6U CN202223423636U CN219323716U CN 219323716 U CN219323716 U CN 219323716U CN 202223423636 U CN202223423636 U CN 202223423636U CN 219323716 U CN219323716 U CN 219323716U
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- Prior art keywords
- negative pressure
- silica gel
- drainage
- soft silica
- gel shell
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- 238000007789 sealing Methods 0.000 claims abstract description 45
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000741 silica gel Substances 0.000 claims abstract description 30
- 238000011010 flushing procedure Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000010521 absorption reaction Methods 0.000 claims abstract description 9
- 239000004814 polyurethane Substances 0.000 claims description 17
- 238000005086 pumping Methods 0.000 claims description 11
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 12
- 230000009471 action Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 3
- 239000003814 drug Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 206010052428 Wound Diseases 0.000 description 12
- 208000027418 Wounds and injury Diseases 0.000 description 12
- 239000012528 membrane Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000002262 irrigation Effects 0.000 description 3
- 238000003973 irrigation Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000029663 wound healing Effects 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- External Artificial Organs (AREA)
Abstract
The utility model discloses a portable negative pressure drainage device which comprises a soft silica gel shell, wherein the lower end of the soft silica gel shell is provided with a downward turning edge extending towards the periphery, a negative pressure drainage sponge and a self-expansion water absorption layer are filled in the soft silica gel shell, the upper end of the soft silica gel shell is provided with an opening, the opening is connected with a multifunctional drainage disc in a sealing manner, a negative pressure suction port and a flushing port are arranged on the multifunctional drainage disc, a first sealing plug is arranged at the negative pressure suction port, and a second sealing plug is arranged at the flushing port. The inside of the soft silica gel shell can be kept at a negative pressure state of-10 kpa to-100 kpa for 24-36 hours after being vacuumized, and the soft silica gel shell does not need to be connected with a negative pressure source in the process, so that the soft silica gel shell is convenient for the free movement of a patient and does not influence the recovery training action. When the vacuum degree in the device is insufficient, the device is restored to a treatment state by using a negative pressure source or an injector, and the seepage liquid can be sucked out when the seepage liquid is more, so that the device can be recycled for 7-10 days, does not need to change the medicine for many times, lightens the economic burden of a patient and is also beneficial to popularization and use of the VSD technology.
Description
Technical Field
The utility model belongs to the field of medical instruments, and particularly relates to a portable negative pressure drainage device.
Background
The negative pressure drainage technology (VSD) is to cover or fill the wound surface of skin and soft tissue defect with medical foam containing drainage tube, then seal the wound surface with biological semipermeable membrane to form a sealed space, finally connect the drainage tube with negative pressure source, and promote wound healing with controllable negative pressure.
The existing negative pressure drainage treatment device comprises a negative pressure source, a negative pressure drainage sponge, a medical sealing membrane, a drainage catheter, a liquid storage bottle and the like, wherein the drainage catheter comprises a drainage inner tube and a drainage outer tube, the medical sealing membrane seals the negative pressure drainage sponge and the inner tube of the drainage catheter at a wound surface together, and seepage and flushing liquid medicine at the wound surface are sucked into the liquid storage bottle through a negative pressure environment created by the negative pressure source. However, the following disadvantages exist in the prior art: 1) In the negative pressure treatment process, a negative pressure source (a negative pressure aspirator/bottle or a central negative pressure source) is connected with a negative pressure drainage sponge and the like through a drainage catheter, the existence of the negative pressure source limits the movement range of a patient, and even normal movement of the body can influence the treatment of the negative pressure drainage treatment device; 2) Because drainage inner tube and outer tube are a whole, when medical sealing membrane seals negative pressure drainage sponge and arranges the drainage inner tube in the negative pressure drainage sponge on human surface together, the outer drainage outer tube of negative pressure drainage sponge, human surface, medical sealing membrane can inevitably exist certain clearance between the three for negative pressure drainage sponge has the condition of sealing inaccuracy with human surface, has influenced the effect of negative pressure drainage.
The Chinese patent with the publication number of CN103405846B discloses a medical film negative pressure drainage device, which comprises a porous wound dressing, an external sucking disc and a biological semipermeable film sealing the porous wound dressing on a wound surface, wherein the external sucking disc comprises a conversion interface, a connecting film and a drainage outer pipe, one side of the conversion interface is provided with the drainage outer pipe, the bottom of the conversion interface is provided with a tray and a through hole, the through hole is communicated with the drainage outer pipe, a mouth is arranged on the biological semipermeable film corresponding to the through hole, and the connecting film is sleeved on the mounting interface through a sucking disc penetrating hole and is adhered to the upper surface of the tray and the biological semipermeable film; the tail end of the drainage outer tube is connected with the drainage container, the catheter and the negative pressure source, a flushing tube is arranged in the drainage outer tube, the tail end of the flushing tube extends out from the side wall of the tail end of the drainage outer tube, and a sealing cover capable of sealing the flushing tube is arranged at the tail end of the flushing tube. The device has the advantages of simple structure and good sealing performance, and improves the negative pressure drainage effect of the negative pressure drainage device. However, the technical scheme still cannot solve the technical problems that the negative pressure source is connected with a negative pressure drainage sponge and the like through a drainage catheter in the negative pressure treatment process, and the movement range of a patient is limited, even the normal body movement is realized.
Disclosure of Invention
The utility model aims to solve the technical problems that a negative pressure source is connected with a negative pressure drainage sponge and the like through a drainage catheter when the negative pressure adsorption device in the prior art is used, and the movement range of a patient is limited, even the normal body moves.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a portable negative pressure drainage device comprises a soft silica gel shell, wherein the lower end of the soft silica gel shell is provided with a downward turning edge which extends to the periphery to be fixed at the wound skin;
the soft silica gel shell is filled with a negative pressure drainage sponge and a self-expansion water absorption layer, the self-expansion water absorption layer is positioned above the negative pressure drainage sponge,
the upper end of software silica gel shell is equipped with the opening, and opening part sealing connection has multi-functional drainage dish, be provided with on the multi-functional drainage dish and take out the negative pressure mouth and wash the mouth, take out the detachable first sealing plug that is provided with in negative pressure mouth department, wash mouthful department and detachable be provided with the second sealing plug.
Further, the multifunctional drainage tray comprises a self-closing device for automatically blocking the negative pressure suction port after negative pressure suction or seepage suction.
Further, the multifunctional drainage disc comprises a negative pressure suction pipe and a flushing pipe, wherein the negative pressure suction pipe is communicated with an external port to form a negative pressure suction port, and the flushing pipe is communicated with the external port to form a flushing port.
Further, the negative pressure pumping pipe comprises a conical section with gradually increased inner diameter from inside to outside, a spring is fixed on the wall surface of the negative pressure pumping pipe, and a sealing ball is fixedly connected with the telescopic inner end of the spring so as to slide in the conical section when being stressed.
Further, the first sealing plug is connected to the negative pumping pipe, and the second sealing plug is connected to the flushing pipe.
Further, the soft silica gel shell comprises a hollow cylindrical protruding portion, the downward turning edge is located on the periphery of the lower end of the protruding portion and integrally formed with the protruding portion, the inner diameter of the opening is identical to that of the protruding portion, a transparent PU film is fixed at the opening of the protruding portion, a through hole is formed in the transparent PU film, and the multifunctional drainage disc is connected onto the transparent PU film in a sealing mode and is communicated with the inner cavity of the protruding portion through the through hole.
Further, the negative pressure drainage sponge is made of polyurethane or polyvinyl alcohol.
Compared with the prior art, the utility model provides a portable negative pressure drainage device, which has the following beneficial effects:
1. according to the utility model, the inside of the soft silica gel shell can be kept in a negative pressure state of-10 kpa to-100 kpa for 24-36 hours after being vacuumized, and the soft silica gel shell does not need to be connected with a negative pressure source during the period, so that the soft silica gel shell is convenient for free movement of a patient and does not influence the recovery training action. When the vacuum degree in the device is insufficient, the device is restored to a treatment state by using a negative pressure source or an injector, and the seepage liquid can be sucked out when the seepage liquid is more, so that the device can be recycled for 7-10 days, multiple times of dressing change is not needed, and the economic burden of a patient is reduced.
2. The utility model can use simple devices such as a syringe and the like to vacuumize the inside of the soft silica gel shell, is simple and practical, and is favorable for popularization and use of the VSD technology.
The device has the advantages of scientific and reasonable structure, safe and convenient use and great help for people.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the utility model and do not constitute a limitation to the utility model, and in which:
FIG. 1 is a schematic diagram of a portable negative pressure drainage device according to an embodiment of the present utility model;
FIG. 2 is a schematic structural view of the multifunctional drainage tray of FIG. 1
In the figure: the multifunctional drainage disc 1, the transparent PU film 2, the self-expansion water absorption layer 3, the negative pressure drainage sponge 4, the soft silica gel shell 5, the release protection layer 6, the negative pressure suction port 11, the flushing port 12, the first sealing plug 13, the second sealing plug 14, the sealing ball 15, the spring 16, the protruding part 51 and the downward turning edge 52.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, the present utility model provides a technical solution:
the utility model provides a portable negative pressure drainage device, includes the software silica gel shell 5 that is located the outside, and software silica gel shell 5 includes bulge 51 and turns over down along 52, and bulge 51 is the hollow tubular structure of upper and lower equal open-ended, turns over along 52 setting up in bulge 51 lower extreme department all around down, has scribbled medical adhesive on the lower terminal surface of turning over along 52 down, makes it can paste on human skin, prevents gas leakage. A release liner 6 is provided at the turndown edge 52 to protect the medical adhesive from losing its tackiness.
The soft silica gel shell 5 is internally provided with a negative pressure drainage sponge 4 and a self-expansion water absorption layer 3, and the negative pressure drainage sponge 4 is made of polyurethane or polyvinyl alcohol. The negative pressure drainage sponge 4 is arranged below the self-expansion water absorption layer 3. The self-expansion water-absorbing layer 3 can automatically and continuously absorb the seepage difficult to flow out from the wound and store the seepage difficult to flow out, and can expand to increase the negative pressure of the device after absorbing water (the self-expansion water-absorbing layer 3 with the performance belongs to the prior art, and is specifically described in the Chinese patent document with the authority publication number of CN 113693821B, and the structure and the specific principle of the self-expansion water-absorbing layer 3 are not described in detail any more). The upper end opening part of the soft silica gel shell 5 is provided with a transparent PU film 2, and the self-expansion water absorption layer 3 and the negative pressure drainage sponge 4 are sealed in the soft silica gel shell 5 through the transparent PU film 2. The upper end opening of the soft silica gel shell 5 can seal the wound surface and keep the negative pressure state of the device after being sealed by the transparent PU film 2. The transparent PU film 2 allows observation of the state of the device at the time of suction under negative pressure. A multifunctional drainage disc 1 is fixed on a transparent PU film 2, through holes are formed in the transparent PU film 2, and the peripheries of the through holes are adhered to the periphery of the multifunctional drainage disc 1 so as to be connected with the multifunctional drainage disc in an airtight manner. In other embodiments, when the transparency of the soft silica gel housing 5 is better, the interior condition of the soft silica gel housing can be observed, or the interior condition of the soft silica gel housing can be observed by other means, the soft silica gel housing 5 can be made into a structure with a small-sized opening at the upper end, and the multifunctional drainage tray 1 can be directly sealed and fixed at the upper end of the soft silica gel housing 5 at the moment, and meanwhile, the transparent PU film 2 is omitted.
The multifunctional drainage disc 1 comprises a negative pressure suction pipe and a flushing pipe, wherein the negative pressure suction pipe is communicated with an external port to form a negative pressure suction port 11, the flushing pipe is communicated with the external port to form a flushing port 12, a connected first sealing plug 13 is arranged at the port of the negative pressure suction pipe, a connected second sealing plug 14 is arranged at the port of the flushing pipe, and the sealing plug can play a sealing protection role after plugging the corresponding port. The sealing plug and the corresponding pipeline can not be completely separated, so that the sealing plug is prevented from being lost. The negative pressure pumping pipe comprises a conical section with gradually increased inner diameter from inside to outside, a sealing ball 15 is slidably arranged in the conical section, a spring 16 is fixed on the wall surface of the negative pressure pumping pipe, and the sealing ball 15 is fixedly connected with the telescopic inner end of the spring 16. When the air pressure in the multifunctional drainage disc 1 is lower than the external air pressure, the spring 16 naturally stretches to tightly prop the sealing ball 15 against the corresponding shaft section of the conical section; when the negative pressure suction port 11 is externally connected with a negative pressure source, the sealing ball 15 is pushed away along with the reduction of the air pressure outside the sealing ball 15, so that the air on the left side and the right side of the sealing ball 15 is communicated. The arrangement of the spring 16 and the sealing ball 15 enables the negative pressure suction port 11 to be automatically closed and kept in a negative pressure state after the device is vacuumized or the seepage is sucked. In other embodiments, the spring 16 and the sealing ball 15 may be replaced by other forms of self-closing means, provided that they automatically close the suction port 11 after evacuation and after suction of the seepage; the negative pressure suction pipe and the flushing pipe can be omitted, and the negative pressure suction port 11 and the flushing port 12 are formed by directly punching holes on the multifunctional drainage disc 1.
The working principle and the using flow of the utility model are as follows: in use, the release coating 6 is torn off, the soft silica gel shell 5 is covered around the wound and is adhered and fixed with the skin by the turndown edge 52. Opening the second sealing plug 14 can inject irrigation liquid or therapeutic medicine into the wound surface through the irrigation port 13, opening the first sealing plug 13, and the negative pressure suction port 11 can be connected with a negative pressure source or a syringe to vacuumize the interior of the device or suck irrigation liquid and/or seepage liquid. After the external negative pressure source or the injector is taken down, the negative pressure pumping port 11 can be automatically closed, so that the micro negative pressure state in the device can be maintained for a long time.
Experiments prove that the vacuum-pumping device can be kept in a negative pressure state of-10 kpa to-100 kpa for 24-36 hours after vacuumizing, and the vacuum-pumping device does not need to be connected with a negative pressure source during the period, so that patients can move freely, and the recovery training action is not influenced. When the vacuum degree in the device is insufficient, the device is restored to a treatment state by using a negative pressure source or an injector, and the seepage liquid can be sucked out when the seepage liquid is more, so that the device can be recycled for 7-10 days, multiple times of dressing change is not needed, and the economic burden of a patient is reduced.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A portable negative pressure drainage device, its characterized in that: comprises a soft silica gel shell, wherein the lower end of the soft silica gel shell is provided with a downward turning edge which extends to the periphery to be fixed at the wound skin;
the soft silica gel shell is filled with a negative pressure drainage sponge and a self-expansion water absorption layer, the self-expansion water absorption layer is positioned above the negative pressure drainage sponge,
the upper end of software silica gel shell is equipped with the opening, and opening part sealing connection has multi-functional drainage dish, be provided with on the multi-functional drainage dish and take out the negative pressure mouth and wash the mouth, take out the detachable first sealing plug that is provided with in negative pressure mouth department, wash mouthful department and detachable be provided with the second sealing plug.
2. The portable negative pressure drainage device of claim 1, wherein: the multifunctional drainage tray comprises a self-closing device for automatically blocking the negative pressure suction port after negative pressure suction or seepage suction.
3. The portable negative pressure drainage device of claim 2, wherein: the multifunctional drainage disc comprises a negative pressure suction pipe and a flushing pipe, wherein the negative pressure suction pipe is communicated with an external port to form a negative pressure suction port, and the flushing pipe is communicated with the external port to form a flushing port.
4. A portable negative pressure drainage device according to claim 3, wherein: the negative pressure pumping pipe comprises a conical section with gradually increased inner diameter from inside to outside, a spring is fixed on the wall surface of the negative pressure pumping pipe, and a sealing ball is fixedly connected with the telescopic inner end of the spring so as to slide in the conical section when being stressed.
5. A portable negative pressure drainage device according to claim 3, wherein: the first sealing plug is connected to the negative pumping pipe, and the second sealing plug is connected to the flushing pipe.
6. The portable negative pressure drainage device of any of claims 1 to 5, wherein: the soft silica gel shell comprises a hollow cylindrical protruding portion, the downward turning edge is located on the periphery of the lower end of the protruding portion and integrally formed with the protruding portion, the inner diameter of the opening is identical to that of the protruding portion, a transparent PU film is fixed at the opening of the protruding portion, a through hole is formed in the transparent PU film, and the multifunctional drainage disc is connected onto the transparent PU film in a sealing mode and is communicated with the inner cavity of the protruding portion through the through hole.
7. The portable negative pressure drainage device of any of claims 1 to 5, wherein: the negative pressure drainage sponge is made of polyurethane or polyvinyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223423636.6U CN219323716U (en) | 2022-12-21 | 2022-12-21 | Portable negative pressure drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223423636.6U CN219323716U (en) | 2022-12-21 | 2022-12-21 | Portable negative pressure drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219323716U true CN219323716U (en) | 2023-07-11 |
Family
ID=87067514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223423636.6U Active CN219323716U (en) | 2022-12-21 | 2022-12-21 | Portable negative pressure drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219323716U (en) |
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2022
- 2022-12-21 CN CN202223423636.6U patent/CN219323716U/en active Active
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