CN213723886U - Negative pressure sucker and composite negative pressure system - Google Patents
Negative pressure sucker and composite negative pressure system Download PDFInfo
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- CN213723886U CN213723886U CN202021453827.5U CN202021453827U CN213723886U CN 213723886 U CN213723886 U CN 213723886U CN 202021453827 U CN202021453827 U CN 202021453827U CN 213723886 U CN213723886 U CN 213723886U
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- negative pressure
- drainage tube
- main drainage
- hole
- auxiliary pipe
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- 239000002131 composite material Substances 0.000 title claims abstract description 7
- 206010072170 Skin wound Diseases 0.000 claims abstract description 42
- 238000001179 sorption measurement Methods 0.000 claims abstract description 16
- 238000010521 absorption reaction Methods 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 33
- 241001170716 Garra gotyla Species 0.000 claims description 31
- 239000002313 adhesive film Substances 0.000 claims description 12
- 239000012945 sealing adhesive Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 16
- 241001484259 Lacuna Species 0.000 abstract description 14
- 238000007920 subcutaneous administration Methods 0.000 abstract description 7
- 238000005406 washing Methods 0.000 abstract description 7
- 238000011010 flushing procedure Methods 0.000 description 6
- 206010052428 Wound Diseases 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 241000521257 Hydrops Species 0.000 description 3
- 206010030113 Oedema Diseases 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical group C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 3
- 230000035876 healing Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a negative pressure suction cup and compound negative pressure system, negative pressure suction cup include sucking disc head, main drainage tube, auxiliary pipe, and the one end and the inside intercommunication of sucking disc head of main drainage tube, the other end of main drainage tube are used for connecting the negative pressure source, and the one end of auxiliary pipe is passed main drainage tube pipe wall and is got into main drainage tube and form the absorption end, and the other end is used for connecting the power supply. The composite negative pressure system comprises a negative pressure dressing layer and a negative pressure sucker, wherein the negative pressure dressing layer is arranged below the negative pressure sucker, and the adsorption end of the auxiliary pipe penetrates through the negative pressure dressing layer and is arranged below the negative pressure dressing layer. The utility model discloses an increase the setting of auxiliary pipe, main drainage tube can continuously produce the negative pressure, makes the skin wound keep in a stable negative pressure environment, and the auxiliary pipe can carry and wash and the drainage function to solve washing and the not good problem of drainage effect of current negative pressure drainage sucking disc to subcutaneous lacuna.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a negative sucker and compound negative pressure system.
Background
The negative pressure closed drainage technology is a new method for treating various complex skin wound surfaces and for deep drainage of wounds, and is characterized by that it utilizes a biological semi-permeable membrane to make the skin wound surface be closed to form a closed space, and connects a drainage tube with negative pressure source to produce negative pressure, so that the drainage tube and dressing can act on the wound surface, and can regulate the negative pressure to promote the wound surface to heal.
As an improved technique, the vacuum suction cup type drainage has the advantages of portability, convenient use and the like, and is widely applied. However, in the using process, some skin wound surfaces are accompanied with subcutaneous sinuses or lacunas, secretion and effusion are easy to accumulate, the current negative pressure drainage suction cup has poor flushing and drainage effects on the subcutaneous lacunas, and the subcutaneous sinuses or lacunas effusion and even infection spread are often caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a negative pressure sucking disc and compound negative pressure system to solve the negative pressure drainage sucking disc among the above-mentioned prior art to the subcutaneous lacuna wash and the not good problem of drainage effect.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a negative pressure suction cup, including sucking disc head, main drainage tube and auxiliary pipe, main drainage tube sets up the top of sucking disc head, the one end of main drainage tube with the inside intercommunication of sucking disc head, the other end of main drainage tube is used for connecting the negative pressure source, the one end of auxiliary pipe is passed main drainage tube pipe wall gets into main drainage tube forms the absorption end, the other end of auxiliary pipe is the link, the link is used for connecting the power supply.
Preferably, the sucking disc head is flat disc-shaped, the material of sucking disc head is plastics, sucking disc head top center is provided with the drainage hole, the one end of main drainage tube is passed through the drainage hole with sucking disc head inside intercommunication.
Preferably, the main drainage tube is a plastic hose, a main drainage tube through hole is formed in the wall of the main drainage tube, and the auxiliary tube is connected with the main drainage tube through hole in an interference fit manner.
Preferably, the auxiliary pipe is a plastic hose, and the diameter of the auxiliary pipe is smaller than that of the main drainage pipe.
Preferably, the link is provided with attach fitting, the attach fitting top still is provided with the lid stopper, the equipartition is equipped with a plurality of absorption holes on the pipe wall of absorption end.
Preferably, the bottom opening of the sucker head is covered with a sealing film, the sealing film is a self-adhesive film, the diameter of the sealing film is larger than that of the outer edge of the sucker head, a sealing film through hole is formed in the sealing film, the sealing film through hole is formed in the lower portion of the sucker head, and the auxiliary pipe is connected with the sealing film through hole in an interference fit mode.
The utility model also provides a compound negative pressure system, including the negative pressure dressing layer with as above negative sucker, the negative pressure dressing layer sets up the below of negative sucker head, the diameter of negative pressure dressing layer is greater than negative sucker's diameter, the absorption end of auxiliary pipe passes the negative pressure dressing layer sets up the below of negative pressure dressing layer.
Preferably, the negative pressure dressing layer comprises a negative pressure sponge and a negative pressure pad pasting, the negative pressure pad pasting covers the upper surface of the negative pressure sponge and adheres the negative pressure sponge to the skin wound, a negative pressure pad pasting through hole is formed in the negative pressure pad pasting, the auxiliary pipe is connected with the negative pressure pad pasting through hole in an interference fit mode, a negative pressure sponge through hole is formed in the negative pressure sponge, and the auxiliary pipe is connected with the negative pressure sponge through hole in an interference fit mode.
Preferably, the sealing film is adhered to the upper side of the negative pressure film, and the diameter of the negative pressure film is larger than that of the sealing film.
The utility model discloses for prior art gain following technological effect:
1. through the setting that increases the accessory pipe, main drainage tube can continuously produce the negative pressure, makes the skin wound keep in a stable negative pressure environment, and the accessory pipe can carry out and wash and the drainage function, fine improvement the effect of negative pressure drainage treatment.
2. Through setting up the sucking disc head into flat discoid structure, the bottom of sucking disc head adds establishes sealed pad pasting, makes the sucking disc head attach in attracting the face more, plays stable effect.
3. Through increasing the structure of auxiliary tube adsorption end absorption hole, also improved the effect of negative pressure drainage treatment when having improved the auxiliary tube and having washed and drainage efficiency.
4. The accessory tube adsorption end is arranged below the negative pressure sponge or arranged in the subcutaneous lacuna for flushing or drainage, thereby effectively improving the problem of subcutaneous sinus or lacuna hydrops and improving the effect of negative pressure drainage treatment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is an overall structure diagram of an angle of a vacuum chuck according to a first embodiment of the present invention;
FIG. 2 is an overall view of another angle of the vacuum chuck according to the first embodiment of the present invention;
FIG. 3 is a partial enlarged view of the suction end of the auxiliary tube of the vacuum chuck according to the first embodiment of the present invention;
fig. 4 is an overall structural diagram of a composite negative pressure system according to a second embodiment of the present invention;
wherein, 1-a sucker head, 2-a main drainage tube, 3-an auxiliary tube, 4-a sealing adhesive film, 5-an adsorption hole, 6-a connection joint, 7-a cover plug, 8-a drainage hole, 9-a negative pressure sponge, 10-a skin wound, 11-a skin wound, 12-a negative pressure adhesive film, 13-a sealing adhesive film through hole, 14-a negative pressure adhesive film through hole, 15-a negative pressure sponge through hole and 16-a main drainage tube through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a negative pressure suction cup and compound negative pressure system to solve the problem that above-mentioned prior art exists.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example one
As shown in fig. 1 to 3, the present embodiment provides a negative pressure suction cup, which includes a suction cup head 1, a main drainage tube 2 and an auxiliary tube 3, wherein one end of the main drainage tube 2 is communicated with the inside of the suction cup head 1, the other end of the main drainage tube 2 is used for connecting a negative pressure source, the negative pressure source is a vacuum pump or other vacuum generating device, the suction cup head 1 covers a skin wound, so that a closed space is formed between the suction cup head 1 and the skin wound, the negative pressure source extracts air in the suction cup head 1 through the main drainage tube 2, so that a negative pressure state is realized in the suction cup head 1, and the healing of the skin wound is promoted by adjusting the negative pressure; the one end of auxiliary pipe 3 is passed 2 pipe walls of main drainage tube and is got into 2 formation of main drainage tube and adsorb the end, and the other end of auxiliary pipe 3 is the link, and the link is used for connecting the power supply, through the setting that increases auxiliary pipe 3, can make main drainage tube 2 continuously produce the negative pressure, makes the skin wound keep in a stable negative pressure environment, and auxiliary pipe 3 then can carry the function of washing or drainage, the fine effect of negative pressure drainage treatment that has improved.
Specifically, the sucker head 1 is made of plastic and is in a flat disc shape, the center of the top of the sucker head 1 is provided with a drainage hole 8, one end of the main drainage tube 2 is communicated with the inside of the sucker head 1 through the drainage hole 8, the drainage hole 8 in the center of the top of the sucker head 1 can be closer to a skin wound by the flat disc-shaped sucker head 1, a stable negative pressure environment is easier to realize, the contact area between the edge of the sucker head 1 and the skin wound is increased by the flat disc-shaped sucker head 1, and the sucker head 1 is more attached to the skin wound and more stably adsorbed on the skin wound; the main drainage tube 2 and the auxiliary tube 3 are both plastic hoses, and the diameter of the auxiliary tube 3 is smaller than that of the main drainage tube 2, so that when the auxiliary tube 3 is used for flushing or drainage, the main drainage tube 2 cannot be influenced to continuously generate negative pressure, and the negative pressure environment is more stable; a main drainage tube through hole 16 is formed in the tube wall of the main drainage tube 2, the adsorption end of the auxiliary tube 3 penetrates through the main drainage tube through hole 16 to enter the main drainage tube 2, and the auxiliary tube 3 is connected with the main drainage tube through hole 16 in an interference fit manner, so that the connection tightness between the main drainage tube 2 and the auxiliary tube 3 is improved; the connecting end of the auxiliary pipe 3 is provided with a connecting joint 6, a cover plug 7 is further arranged above the connecting joint 6, a plurality of adsorption holes 5 are uniformly distributed on the pipe wall of the adsorption end of the auxiliary pipe 3, the auxiliary pipe 3 is kept in a sterile environment when the auxiliary pipe 3 is not washed and drained through the arrangement of the connecting joint 6 and the cover plug 7, and the adsorption holes 5 can improve the washing and drainage efficiency of the auxiliary pipe 3; the bottom opening of the sucker head 1 is covered with the sealing adhesive film 4, the sealing adhesive film 4 is a self-adhesive film, the diameter of the sealing adhesive film 4 is larger than that of the outer edge of the sucker head 1, the self-adhesive film is a transparent film with viscosity, the sealing adhesive film 4 is arranged at the bottom opening of the sucker head 1 and is larger than that of the outer edge of the sucker head 1, the self-adhesive film is a transparent film with viscosity, and is more easily adsorbed on the surface of a skin wound, the sealing adhesive film 4 is connected with the sucker head 1, the sucker head 1 is indirectly driven to be better adsorbed on the surface of the skin wound, and the sealing performance of the sucker head 1 is kept; a sealing pad pasting through hole 13 is formed in the sealing pad pasting 4, the sealing pad pasting through hole 13 is formed below the sucker head 1, the adsorption end of the auxiliary pipe 3 penetrates through the sealing pad pasting through hole 13 and is arranged below the sealing pad pasting 4, the auxiliary pipe 3 is connected with the sealing pad pasting through hole 13 in an interference fit mode, and the sealing performance of the connection of the auxiliary pipe 3 and the sealing pad pasting 4 is improved.
In the negative pressure suction cup provided in this embodiment, the suction cup head 1, the main drainage tube 2 and the auxiliary tube 3 may also be integrally formed.
When the negative pressure type skin wound washing device is used, a negative pressure source extracts air in the sucker head 1 through the main drainage tube 2, so that a negative pressure state is achieved in the sucker head 1, the healing of a skin wound surface is promoted by adjusting the negative pressure, the adsorption end of the auxiliary tube 3 is arranged below the sealing adhesive film 4, the auxiliary tube 3 can perform the washing or drainage function, when the washing function is performed, the connection end of the auxiliary tube 3 is connected with a washing device, and liquid enters into a lacuna of the skin wound through the auxiliary tube 3 to wash the wound; when carrying the drainage function, drainage device is connected to the link of auxiliary pipe 3, the hydrops that produces in the lacuna of skin wound passes through the absorption hole and is discharged by auxiliary pipe 3, all the other conditions can cover lid stopper 7 and cover joint 6 and seal up auxiliary pipe 3, main drainage tube 2 can continuously produce the negative pressure, make the skin wound keep in a stable negative pressure environment, sucking disc head 1 sets up to flat discoid structure, sucking disc head 1's bottom adds and establishes sealed pad pasting 4, make sucking disc head 1 more attached in the suction surface, play stable effect, auxiliary pipe 3 can carry out and wash and the drainage function, fine improvement the effect of negative pressure drainage treatment, through the structure that increases absorption hole 5, also improved the effect of negative pressure drainage treatment when having improved the auxiliary pipe and having washed and drainage efficiency.
Example two
As shown in fig. 4, the present embodiment provides a composite negative pressure system, including the negative pressure chuck of the first embodiment and a negative pressure dressing layer, where the negative pressure dressing layer is disposed below the negative pressure chuck, the negative pressure dressing layer is a dressing layer commonly used in negative pressure drainage technology, and the negative pressure dressing layer covers the surface of the skin wound and is used for transferring and sealing effusion in the lacuna of the skin wound, so as to ensure dryness of the skin wound and prevent bacteria from breeding; the diameter of the negative pressure dressing layer is larger than that of the negative pressure sucker, so that the negative pressure sucker is adsorbed on the negative pressure dressing layer, and the sealing performance of the closed space is improved; the adsorption end of the auxiliary tube 3 penetrates through the negative pressure dressing layer and is arranged below the negative pressure dressing layer, and the effusion in the lacuna of the skin wound is washed or drained through the adsorption end of the auxiliary tube 3, so that the negative pressure drainage treatment effect is well improved.
Specifically, the negative pressure dressing layer comprises a negative pressure sponge 9 and a negative pressure pad pasting 12, the negative pressure sponge 9 covers a skin wound 11, the negative pressure pad pasting 12 is arranged above the negative pressure sponge 9 and wraps the negative pressure sponge 9 to be adhered to the skin wound surface 10, the negative pressure sponge 9 is used for transmitting effusion in the lacuna of the skin wound, the negative pressure pad pasting has high water absorption rate and can store a large amount of effusion, the dryness of the skin wound is ensured, and bacteria are prevented from breeding, the negative pressure pad pasting 12 is used for sealing the negative pressure sponge 9, the negative pressure pad pasting 12 is a biological semipermeable membrane and has one-way permeability, moisture can volatilize into the air through the negative pressure pad pasting 12, and the air can not enter the negative pressure pad pasting 12, so that the sterile environment in the skin wound is ensured while sealing; the sealing pad pasting 4 is adhered above the negative pressure pad pasting 12, the diameter of the negative pressure pad pasting 12 is larger than that of the sealing pad pasting 4, and the sealing performance of the negative pressure pad pasting 12 is better improved; the negative pressure sponge 9 is provided with a negative pressure sponge through hole 15, the negative pressure pad pasting 12 is provided with a negative pressure pad pasting through hole 14, the adsorption end of the auxiliary tube 3 arranged below the sealing pad pasting 4 respectively penetrates through the negative pressure pad pasting 12 and the negative pressure sponge 9 and is arranged in the skin wound 11, the auxiliary tube 3 is respectively connected with the negative pressure sponge through hole 15 and the negative pressure pad pasting through hole 14 in an interference fit mode, and the sealing performance of the whole negative pressure environment is better improved.
When the auxiliary tube 3 is used, the negative pressure sponge 9 is covered on the skin wound 11, the negative pressure adhesive film 12 is covered above the negative pressure sponge 9 and wraps the negative pressure sponge 9 and is adhered to the skin wound 10, the sealing adhesive film 4 is adhered above the negative pressure adhesive film 12, at the moment, a closed space is formed between the negative pressure adhesive film 12 and the negative pressure sponge 9 and the skin around the skin wound, a negative pressure source extracts air in the sucker head 1 through the main drainage tube 2 to enable the sucker head 1 to achieve a negative pressure state, healing of the skin wound is promoted by adjusting the negative pressure in the closed space, the adsorption end of the auxiliary tube 3 is placed in the skin wound 11, the auxiliary tube 3 can perform a flushing or drainage function, when the flushing function is performed, the connection end of the auxiliary tube 3 is connected with a flushing device, and liquid enters into lacunas of the skin wound 11 through the auxiliary tube 3 to clean the wound; when carrying the drainage function, drainage device is connected to the link of auxiliary pipe 3, the hydrops that produces in the lacuna of skin wound 11 is discharged by auxiliary pipe 3 through adsorbing the hole, all the other circumstances can cover 7 with the lid and cover joint 6 and seal up auxiliary pipe 3, main drainage tube 2 can continuously produce the negative pressure, make the skin wound keep in a stable negative pressure environment, sucking disc head 1 sets up to flat discoid structure, sucking disc head 1's bottom adds establishes sealed pad pasting 4, make sucking disc head 1 more attached in the suction surface, play stable effect, auxiliary pipe 3 can carry out and wash and drainage function, fine improvement the effect of negative pressure drainage treatment, through the structure that increases adsorption holes 5, also improved the effect of negative pressure drainage treatment when having improved the auxiliary pipe and having washed and drainage efficiency.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. The utility model provides a negative pressure sucking disc which characterized in that: including sucking disc head, main drainage tube and auxiliary pipe, main drainage tube sets up the top of sucking disc head, the one end of main drainage tube with the inside intercommunication of sucking disc head, the other end of main drainage tube is used for connecting the negative pressure source, the one end of auxiliary pipe is passed main drainage tube pipe wall gets into main drainage tube forms the absorption end, the other end of auxiliary pipe is the link, the link is used for connecting the power supply.
2. The negative pressure suction cup according to claim 1, wherein: the sucking disc head is flat disc-shaped, the material of sucking disc head is plastics, sucking disc head top center is provided with the drainage hole, the one end of main drainage tube pass through the drainage hole with sucking disc head inside intercommunication.
3. The negative pressure suction cup according to claim 1, wherein: the main drainage tube is a plastic hose, a main drainage tube through hole is formed in the wall of the main drainage tube, and the auxiliary tube is connected with the main drainage tube through hole in an interference fit mode.
4. The negative pressure suction cup according to claim 1, wherein: the auxiliary pipe is a plastic hose, and the diameter of the auxiliary pipe is smaller than that of the main drainage pipe.
5. The negative pressure suction cup according to claim 1, wherein: the link is provided with attach fitting, the attach fitting top still is provided with the lid stopper, the equipartition is equipped with a plurality of absorption holes on the pipe wall of absorption end.
6. The negative pressure suction cup according to claim 1, wherein: the sucker head comprises a sucker head and is characterized in that a sealing film is covered on an opening in the bottom of the sucker head and is a self-adhesive film, the diameter of the sealing film is larger than that of the outer edge of the sucker head, a sealing film through hole is formed in the sealing film, the sealing film through hole is formed in the lower portion of the sucker head, and the auxiliary pipe is connected with the sealing film through hole in an interference fit mode.
7. A compound negative pressure system which characterized in that: the negative pressure sucker comprises a negative pressure dressing layer and the negative pressure dressing of any one of claims 1 to 6, wherein the negative pressure dressing layer is arranged below the negative pressure sucker, the diameter of the negative pressure dressing layer is larger than that of the negative pressure sucker, and the adsorption end of the auxiliary pipe penetrates through the negative pressure dressing layer and is arranged below the negative pressure dressing layer.
8. The composite negative pressure system of claim 7, wherein: the negative pressure dressing layer comprises a negative pressure sponge and a negative pressure pad pasting, the negative pressure pad pasting covers the upper surface of the negative pressure sponge and adheres the negative pressure sponge to a skin wound, a negative pressure pad pasting through hole is formed in the negative pressure pad pasting, the auxiliary pipe is connected with the negative pressure pad pasting through hole in an interference fit mode, a negative pressure sponge through hole is formed in the negative pressure sponge, and the auxiliary pipe is connected with the negative pressure sponge through hole in an interference fit mode.
9. The composite negative pressure system of claim 8, wherein: the bottom opening of the sucker head is covered with a sealing adhesive film, the sealing adhesive film is adhered above the negative pressure adhesive film, and the diameter of the negative pressure adhesive film is larger than that of the sealing adhesive film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021453827.5U CN213723886U (en) | 2020-07-22 | 2020-07-22 | Negative pressure sucker and composite negative pressure system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021453827.5U CN213723886U (en) | 2020-07-22 | 2020-07-22 | Negative pressure sucker and composite negative pressure system |
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| CN213723886U true CN213723886U (en) | 2021-07-20 |
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| CN202021453827.5U Active CN213723886U (en) | 2020-07-22 | 2020-07-22 | Negative pressure sucker and composite negative pressure system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114712581A (en) * | 2022-05-11 | 2022-07-08 | 中国科学院长春应用化学研究所 | Sucker device suitable for negative pressure sealing drainage technology |
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2020
- 2020-07-22 CN CN202021453827.5U patent/CN213723886U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114712581A (en) * | 2022-05-11 | 2022-07-08 | 中国科学院长春应用化学研究所 | Sucker device suitable for negative pressure sealing drainage technology |
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