CN106725894B - Intermittent negative pressure suction skin expansion device and use method thereof - Google Patents
Intermittent negative pressure suction skin expansion device and use method thereof Download PDFInfo
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- CN106725894B CN106725894B CN201710046104.XA CN201710046104A CN106725894B CN 106725894 B CN106725894 B CN 106725894B CN 201710046104 A CN201710046104 A CN 201710046104A CN 106725894 B CN106725894 B CN 106725894B
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- skin
- negative pressure
- sucking disc
- expansion
- skin expansion
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000011521 glass Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 230000006378 damage Effects 0.000 abstract description 6
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 3
- 238000002054 transplantation Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000036407 pain Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 210000005077 saccule Anatomy 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/322—Skin grafting apparatus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
- A61B2017/00544—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated pneumatically
Abstract
The invention discloses an intermittent negative pressure suction skin expansion device and a using method thereof, belonging to the technical field of medical treatment. The skin expansion device comprises a negative pressure generator and a skin expansion sucker, the negative pressure generator is communicated with the skin expansion sucker through an air duct, and a pressure gauge communicated with the air duct is arranged on the air duct; the negative pressure generator is an air exhaust fan driven by a motor, and the negative pressure generator intermittently generates negative pressure. The invention adopts a mode of intermittently generating negative pressure, reduces the possibility of injury to human skin caused by overlong time of a high-pressure state, and has more reasonable treatment process and more obvious curative effect. The invention is convenient to use, and the effect on the skin is generated on the surface of the skin, thereby reducing the possible damage to the skin. The invention can be suitable for any part of the human body, and is convenient and labor-saving to use. The application method of the skin expansion device provided by the invention can select different treatment methods according to the needs of patients, and provides good treatment experience for the patients.
Description
Technical Field
The invention relates to a skin expansion device and a using method thereof, in particular to an intermittent negative pressure suction skin expansion device and a using method thereof, belonging to the technical field of medical treatment.
Background
When skin is flawed or damaged, repairs are typically made with the skin adjacent to a healthy intact skin. The skin after repair has uniform color and texture, and has a particularly high degree of similarity to the original skin, so that the skin is widely adopted. At present, the operation is mostly used for embedding and expanding the saccule under the skin, and then the saccule volume is increased by water injection to extrude the skin to bulge outwards, so that the extra surface area of the skin is increased, and the skin for repairing the defected skin is formed. However, this method requires surgical incision of the skin, so that an incision may occur, and may adversely affect the patient if the surgical site is on the face, and the method is costly.
Disclosure of Invention
The invention aims to provide an intermittent negative pressure suction skin expansion device which does not need surgical operation.
In order to achieve the purpose, the invention adopts the technical scheme that:
an intermittent negative pressure suction skin expansion device comprises a negative pressure generator and a skin expansion sucker, wherein the negative pressure generator is communicated with the skin expansion sucker through an air duct, and a pressure gauge communicated with the air duct is arranged on the air duct; the negative pressure generator is an air exhaust fan driven by a motor, and the negative pressure generator intermittently generates negative pressure.
Furthermore, the skin expansion sucker consists of a sucker opening positioned at the lower part and a sucker cover positioned at the upper part, and the sucker opening and the sucker cover are connected through threads; the skin distension device also comprises an auxiliary suction skin cover.
Further, still including setting up the helmet of mounting bracket, the skin expansion sucking disc passes through the universal linking arm to be installed on the mounting bracket of helmet.
Furthermore, the skin expansion sucking disc is provided with a telescopic belt for fixing.
Furthermore, a motor for driving the air exhaust fan is controlled by a control system consisting of a relay, and the relay comprises a pressure relay and a time relay.
A method for using an intermittent negative pressure suction skin expansion device comprises the following steps,
1) determining a part needing skin expansion;
2) securing the skin expansion suction cup of the device at the position determined in step 1);
3) starting a negative pressure generator to perform intermittent expansion on the skin;
4) and (4) finishing skin expansion, closing the negative pressure generator, and taking down the skin expansion sucker.
Further, the intermittent expansion of the skin in the step 3) is in a time control mode, the operation of the negative pressure generator stops the operation of the air exhaust fan after the air pressure of the device reaches a preset value, the intermittent working time of the negative pressure generator is set, the air exhaust fan is started again after a period of time until the pressure reaches the preset value, and the operation is stopped according to the process cycle.
Further, the intermittent expansion of the skin in the step 3) is in a mode of air pressure control, and the maximum value and the minimum value of the working air pressure are set in a control system; the operation of the negative pressure generator is stopped after the air pressure of the device reaches a preset maximum value, the operation of the negative pressure generator is stopped after the air pressure is reduced to the minimum value after a period of time, the negative pressure generator is operated again to the maximum value of the set working air pressure, and the operation is repeated according to the process in a circulating mode.
Further, if the part needing skin expansion in the step 2) is the face, a skin expansion device with a helmet is selected; if the part needing skin expansion is other parts of the body, the skin expansion device with the telescopic belt arranged on the skin expansion sucking disc is selected.
Further, the skin expansion sucking disc comprising a sucking disc opening and a sucking disc cover is used in the step 2), the sucking disc cover is taken down firstly, the auxiliary suction skin cover is placed in the sucking disc opening, the auxiliary suction skin cover is taken down after the auxiliary suction skin cover is used for sucking the skin to be outwards protruded, and the sucking disc cover is covered to form the closed skin expansion sucking disc.
Due to the adoption of the technical scheme, the invention has the following technical effects:
the invention adopts a mode of generating negative pressure intermittently, reduces the possibility of injury to human skin caused by overlong time of a high-pressure state, and has more reasonable treatment process and more obvious curative effect.
The invention is convenient to use, and the effect on the skin is generated on the surface of the skin, thereby reducing the possible damage to the skin.
The invention can be suitable for any part of the human body, and is convenient and labor-saving to use.
The use method of the skin expansion device provided by the invention can select different treatment methods according to the needs of patients, reduce the pain of the patients and provide good treatment experience for the patients.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view showing the manner of fixing the skin expansion sucking disk in example 1;
FIG. 3 is a schematic view showing the manner of fixing the skin expansion sucking disk in example 2;
FIG. 4 is a schematic view of the skin expansion sucking disk separately provided in example 2;
FIG. 5 is a schematic view of an auxiliary suction skin mask;
FIG. 6 is a schematic view of the auxiliary suction skin mask in use;
the skin suction device comprises a negative pressure generator 1, a skin expansion sucker 2, a pressure gauge 3, a helmet 4-1, a mounting rack 5, a universal connecting arm 6, a telescopic belt 7, a connecting rod 8 and an auxiliary suction skin cover.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific embodiments:
example 1
The invention discloses an intermittent negative pressure suction skin expansion device, which comprises a skin expansion sucking disc 2 and a negative pressure generator 1, wherein the skin expansion sucking disc 2 is used for acting on the surface of human skin, the skin expansion sucking disc 2 is communicated with the negative pressure generator 1 through an air duct, and a pressure gauge 3 for measuring air pressure is arranged on the air duct. The negative pressure generator 1 of the invention intermittently generates negative pressure under the control of a control system. The pressure gauge 3 feeds the measured air pressure value back to the control system. The concrete structure is shown in figure 1.
The skin expansion sucking disc of the device has two setting modes. One is used for the skin expansion of the face, the specific arrangement mode is that a helmet 4 with a mounting rack 4-1 is added, and a skin expansion sucking disc 2 is mounted on the mounting rack 4-1 of the helmet 4 through a universal connecting arm 5. The mounting rack 4-1 is fixed at the lower end of the helmet 4 and is a slide rail groove arranged around the circumference of the front edge of the helmet 4, and the specific structure is shown in fig. 2. The arrangement of the universal connecting arm 5 ensures that the skin expansion sucking disc 2 can cover any position of the face. The other type is suitable for the parts of the trunk or the limbs of the human body, the specific arrangement mode is that a belt-shaped locking mechanism is arranged on the skin expansion sucking disc, the belt-shaped locking mechanism comprises a connecting rod 7 and a telescopic belt 6, and the specific structure is shown in figure 3. The stretchable band 6 may be provided as a velcro tape composed of a hook tape and a loop tape, or may be provided in a structure similar to a waist belt. When the skin expansion suction cup 2 is used in a region other than the face, for example, when the skin expansion suction cup is used in an arm, a leg, or the like, the skin expansion suction cup is fastened to the use site by the stretch band 6 being wound around the arm or the leg for one turn. The arrangement enlarges the application range of the skin expansion device, and can be more conveniently and flexibly applied to any part of the human body.
The skin expansion sucker 2 comprises a sucker positioned on an inner layer and a sucker body positioned on an outer layer, the skin expansion sucker 2 is a hollow hemispherical shell, the appearance of the skin expansion sucker is similar to a bowl shape, a flange edge extending outwards is arranged on the edge of an opening, and the specific structure is shown in fig. 2 and 3. Wherein, the part that is located the inlayer and contacts with the skin is the rubber material, and the sucking disc body that is located the skin is metal or glass material to form inclosed negative pressure space. The universal connecting arm 5 is fixedly connected with the outer layer of the sucker body. The shape of the skin expansion sucking disc 2 has a larger inner surface, so that a larger skin adsorption area can be ensured, and the single treatment effect is greatly improved.
The skin expansion sucking disc 2 can also be arranged in a mode of comprising a sucking disc opening 2-1 and a sucking disc cover 2-2, the sucking disc opening 2-1 positioned below and the sucking disc cover 2-2 positioned above form a whole, the sucking disc opening 2-1 and the sucking disc cover 2-2 are connected through threads, and the specific structure is shown in figure 4. The skin expansion means further comprises an auxiliary suction skin mask 8, as shown in fig. 5. Before the negative pressure generator is started, the sucking disc cover 2-2 is taken down, and the auxiliary sucking skin cover 8 is placed into the sucking disc opening 2-1, as shown in the position of figure 6; after the auxiliary skin suction cover 8 is used for sucking the skin to bulge outwards, the auxiliary skin suction cover 8 is taken down, the sucking disc 2-2 is covered to form the closed skin expansion sucking disc 2, the negative pressure generator 1 is started, and the skin in the skin expansion sucking disc 1 is kept in a sucked state.
The negative pressure generator 1 is an air exhaust fan controlled by a motor, and the motor is controlled by a control system. The control system comprises a pressure relay and a time relay. The pressure value and the operation pause time of the motor can be set in the control system. The pressure relay performs corresponding actions through the pressure value fed back by the pressure measuring meter 3.
The control system of the invention can have two control modes, one is an air pressure control mode, namely, the maximum value and the minimum value of the working air pressure are input into the control system, and the negative pressure generator 1 stops running after the pressure value in the skin expansion sucking disc 2 reaches the maximum value. After a period of time, the pressure value in the skin expansion sucking disc 2 is lower than the minimum value, then the negative pressure generator 1 operates again until the pressure value in the skin expansion sucking disc 2 reaches the maximum value, and the process is circulated. The other mode is a time control mode, namely firstly, the suction fan works to enable the negative pressure generator 1 to stop running after the pressure of the device reaches a preset value, the intermittent working time (such as 10 minutes) of the negative pressure generator is set, after a period of time, the negative pressure generator 1 is started again until the pressure reaches the preset value, the negative pressure generator stops running, and the cycle is repeated according to the process. The two control modes can realize the effect of intermittently generating negative pressure, and the negative pressure generator 1 enables the skin expansion sucking disc 2 to be in a pressure maintaining state in the intermittent period.
The two control modes can realize the intermittent generation of negative pressure by the device, and the negative pressure generator enables the skin expansion sucker to be in a pressure maintaining state during the intermittence. However, since the skin expansion suction cup cannot be in an absolutely sealed state at the skin contact portion, the pressure in the skin expansion suction cup is gradually reduced after a certain period of time until the negative pressure generator is operated again. The arrangement ensures that the pressure of the skin expansion device for sucking and expanding the skin of the human body does not need to be kept in a high-pressure state all the time, but carries out sucking and expanding on the skin in a reasonable range, reduces the possibility of injury to the skin of the human body due to overlong time of the high-pressure state, and ensures that the treatment process is more reasonable. The skin condition of the transplanted skin after expansion is good, and the treatment effect after transplantation is more obvious. For the air pressure control mode, the patient can select the appropriate maximum value and minimum value according to the self pressure bearing capacity. For the time control mode, the patient can select the intermittent working time according to the self pressure bearing time.
The use method of the intermittent negative pressure suction skin expansion device comprises the following steps:
1) the site where skin augmentation is desired is identified.
2) Securing the skin expansion suction cup of the device at the position determined in step 1); selecting a specific form of the skin expansion sucking disc through the specific part determined in the step 1), and selecting a skin expansion device with a helmet 4 if the part needing skin expansion is the face; if the part needing skin expansion is other parts of the body, the skin expansion device with the telescopic belt 6 arranged on the skin expansion sucking disc 2 is selected.
3) And starting the negative pressure generator to perform intermittent expansion on the skin. The specific control mode is selected according to the requirements of the patient. In the time control mode, the operation of the air exhaust fan is stopped after the air pressure of the device reaches a preset value, the intermittent working time of the air exhaust fan is set, the air exhaust fan is started again after a period of time until the pressure reaches the preset value, and then the operation is stopped, and the operation is circulated according to the process; the air pressure control mode is that the maximum value and the minimum value of the working air pressure are set in a control system; and the operation of the air exhaust fan stops after the air pressure of the device reaches a preset maximum value, the operation of the air exhaust fan stops after the air pressure is reduced to the minimum value after a period of time, the air exhaust fan operates to the maximum value of the set working air pressure again, and the operation is repeated according to the process in a circulating mode.
4) And (4) finishing skin expansion, closing the negative pressure generator, and taking down the skin expansion sucker.
If the skin expansion suction cup is selected as shown in fig. 4 in a separate form including the suction cup port 2-1 and the suction cup port 2-2, an auxiliary suction skin cover 8 is required. The process of the step 2) is that the sucker cover 2-2 is taken down firstly, and the auxiliary skin sucking cover 8 is put into the sucker opening 2-1, as shown in the state of figure 6; after the auxiliary skin sucking cover 8 is used for sucking the skin to bulge outwards, the auxiliary skin sucking cover 8 is taken down, and the sucker cover 2-2 is covered to form a closed skin expansion sucker, so that the skin can be in a state of being sucked to bulge outwards for a long time.
The invention can be applied to any part of the body and is convenient to use. The invention adopts the intermittent air pressure generating device, the attraction and expansion to the skin of the human body can be kept in a proper range, the treatment process is more comfortable, and the treatment effect is more obvious. The main skin expansion of the present invention is the expansion of the skin around the skin expansion suction cup, resulting in additional skin to be transplanted.
The application method of the skin expansion device provided by the invention can select different treatment methods according to the needs of patients, and provides good treatment experience for the patients.
The control mode of the invention ensures that the negative pressure generator intermittently generates negative pressure, and avoids the adverse effect of poor treatment effect caused by possible damage of skin under a high pressure state for a long time in the treatment process. By adopting the device and the using method, the treatment effect is good, sequelae are avoided, the pain of a patient is reduced, and the treatment experience is good.
The invention can obtain the needed additional skin by carrying out suction expansion on the skin for 1-2 months generally.
The invention is a preparation work before skin transplantation, the device is acted near the skin to be transplanted, and good extra skin capable of skin transplantation is obtained through the action of the device. Compared with the traditional mode of implanting the air bag, the method reduces one operation, and is particularly suitable for the treatment of skin transplantation on the face.
The invention can reduce the operation times of the patient in the treatment process, correspondingly reduces the risks of operation complications, operation anesthesia and the like, and reduces the treatment expense of the patient.
Claims (4)
1. An intermittent negative pressure suction skin expansion device is characterized in that: the skin-expanding negative pressure generator comprises a negative pressure generator (1) and a skin-expanding sucker (2), wherein the negative pressure generator (1) is communicated with the skin-expanding sucker (2) through an air duct, and a pressure gauge (3) communicated with the air duct is arranged on the air duct; the negative pressure generator (1) is an air exhaust fan driven by a motor, and the negative pressure generator (1) intermittently generates negative pressure; the skin expansion sucking disc (2) consists of a sucking disc opening (2-1) positioned below and a sucking disc cover (2-2) positioned above, and the sucking disc opening (2-1) and the sucking disc cover (2-2) are connected through threads; the skin expansion device further comprises an auxiliary suction skin cover (8); the skin expansion sucker is arranged on the mounting rack (4-1) of the helmet through a universal connecting arm (5); or a telescopic belt (6) for fixing is arranged on the skin expansion sucking disc (2); the skin expansion sucking disc (2) comprises a sucking disc positioned on the inner layer and a sucking disc body positioned on the outer layer, and the skin expansion sucking disc (2) is a hollow hemispherical shell; the sucking disc on the inner layer is made of rubber, and the sucking disc body on the outer layer is made of metal or glass;
the use method of the intermittent negative pressure suction skin expansion device comprises the following steps,
1) determining a part needing skin expansion;
2) securing the skin expansion suction cup of the device at the position determined in step 1); the skin expansion sucking disc comprises a sucking disc opening (2-1) and a sucking disc cover (2-2), the sucking disc cover (2-2) is taken down firstly, the auxiliary sucking skin cover (8) is placed in the sucking disc opening (2-1), the auxiliary sucking skin cover (8) is taken down after the skin is sucked to bulge outwards by the auxiliary sucking skin cover (8), and the sucking disc cover (2-2) is covered to form the closed skin expansion sucking disc; if the part needing skin expansion is the face, a skin expansion device with a helmet (4) is selected; if the part needing skin expansion is other parts of the body, a skin expansion device with a telescopic belt (6) arranged on a skin expansion sucking disc is selected;
3) starting a negative pressure generator to perform intermittent expansion on the skin;
4) and (4) finishing skin expansion, closing the negative pressure generator, and taking down the skin expansion sucker.
2. The intermittent negative pressure suction skin expansion device according to claim 1, wherein: the motor for driving the air exhaust fan is controlled by a control system consisting of a relay, and the relay comprises a pressure relay and a time relay.
3. The intermittent negative pressure suction skin expansion device according to claim 1, wherein: and 3) performing intermittent expansion on the skin in the step 3) in a time control mode, stopping the operation of the air exhaust fan after the air pressure of the device reaches a preset value by operating the negative pressure generator (1), setting the intermittent working time of the negative pressure generator (1), starting the air exhaust fan again after a period of time until the pressure reaches the preset value, stopping the operation, and performing cyclic reciprocating according to the process.
4. The intermittent negative pressure suction skin expansion device according to claim 1, wherein: the intermittent expansion of the skin in the step 3) is in a mode of air pressure control, and the maximum value and the minimum value of the working air pressure are set in a control system; the operation of the negative pressure generator (1) is stopped after the air pressure of the device reaches a preset maximum value, the operation of the negative pressure generator (1) is stopped after the air pressure is reduced to the minimum value after a period of time, the negative pressure generator (1) is operated again to the maximum value of the set working air pressure, and the operation is repeated according to the process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046104.XA CN106725894B (en) | 2017-01-22 | 2017-01-22 | Intermittent negative pressure suction skin expansion device and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046104.XA CN106725894B (en) | 2017-01-22 | 2017-01-22 | Intermittent negative pressure suction skin expansion device and use method thereof |
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| Publication Number | Publication Date |
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| CN106725894A CN106725894A (en) | 2017-05-31 |
| CN106725894B true CN106725894B (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710046104.XA Expired - Fee Related CN106725894B (en) | 2017-01-22 | 2017-01-22 | Intermittent negative pressure suction skin expansion device and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108211130A (en) * | 2018-01-23 | 2018-06-29 | 中国医学科学院生物医学工程研究所 | A kind of non-invasive optical instrument for cerebrovascular disease therapy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2267822Y (en) * | 1995-03-30 | 1997-11-19 | 中国人民解放军第二五一医院 | Negative-pressure suction type skin dilator |
| US6440096B1 (en) * | 2000-07-14 | 2002-08-27 | Becton, Dickinson And Co. | Microdevice and method of manufacturing a microdevice |
| CN101623534A (en) * | 2009-08-13 | 2010-01-13 | 陈铁夫 | Skin tissue outward expander |
| CN201968791U (en) * | 2011-01-06 | 2011-09-14 | 管雪峰 | Skin separator |
| CN202105224U (en) * | 2011-06-22 | 2012-01-11 | 于凤菊 | Discontinuous negative-pressure suction control device |
| CN202908804U (en) * | 2012-11-23 | 2013-05-01 | 中国医学科学院整形外科医院 | Negative pressure type skin outer dilator |
| US8585683B2 (en) * | 2006-06-02 | 2013-11-19 | Kci Medical Resources | Assemblies, systems, and methods for vacuum assisted internal drainage during wound healing |
| KR20160105758A (en) * | 2016-08-31 | 2016-09-07 | (주)시지바이오 | Appratus for promoting tissue expansion |
| CN207125796U (en) * | 2017-01-22 | 2018-03-23 | 袁好军 | A kind of batch (-type) vacuum suction skin expansion device |
-
2017
- 2017-01-22 CN CN201710046104.XA patent/CN106725894B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2267822Y (en) * | 1995-03-30 | 1997-11-19 | 中国人民解放军第二五一医院 | Negative-pressure suction type skin dilator |
| US6440096B1 (en) * | 2000-07-14 | 2002-08-27 | Becton, Dickinson And Co. | Microdevice and method of manufacturing a microdevice |
| US8585683B2 (en) * | 2006-06-02 | 2013-11-19 | Kci Medical Resources | Assemblies, systems, and methods for vacuum assisted internal drainage during wound healing |
| CN101623534A (en) * | 2009-08-13 | 2010-01-13 | 陈铁夫 | Skin tissue outward expander |
| CN201968791U (en) * | 2011-01-06 | 2011-09-14 | 管雪峰 | Skin separator |
| CN202105224U (en) * | 2011-06-22 | 2012-01-11 | 于凤菊 | Discontinuous negative-pressure suction control device |
| CN202908804U (en) * | 2012-11-23 | 2013-05-01 | 中国医学科学院整形外科医院 | Negative pressure type skin outer dilator |
| KR20160105758A (en) * | 2016-08-31 | 2016-09-07 | (주)시지바이오 | Appratus for promoting tissue expansion |
| CN207125796U (en) * | 2017-01-22 | 2018-03-23 | 袁好军 | A kind of batch (-type) vacuum suction skin expansion device |
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| CN106725894A (en) | 2017-05-31 |
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