CN103623496A - Wound marginal cell crawling promoting type temperature control swell-shrink type drainage tube - Google Patents
Wound marginal cell crawling promoting type temperature control swell-shrink type drainage tube Download PDFInfo
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- CN103623496A CN103623496A CN201310537304.7A CN201310537304A CN103623496A CN 103623496 A CN103623496 A CN 103623496A CN 201310537304 A CN201310537304 A CN 201310537304A CN 103623496 A CN103623496 A CN 103623496A
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- tube
- water tank
- outer tube
- water
- inner tube
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- 230000009193 crawling Effects 0.000 title abstract 2
- 230000001737 promoting effect Effects 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000741 silica gel Substances 0.000 claims abstract description 4
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 4
- 239000012466 permeate Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 210000001124 body fluid Anatomy 0.000 claims description 4
- 239000010839 body fluid Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000005192 partition Methods 0.000 abstract 1
- 206010052428 Wound Diseases 0.000 description 41
- 208000027418 Wounds and injury Diseases 0.000 description 40
- 238000005516 engineering process Methods 0.000 description 10
- 210000002615 epidermis Anatomy 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 210000003491 skin Anatomy 0.000 description 3
- 230000035699 permeability Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 230000029663 wound healing Effects 0.000 description 1
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Abstract
The invention relates to the technical field of medical instruments, in particular to a wound marginal cell crawling promoting type temperature control swell-shrink type drainage tube. The drainage tube is composed of a drainage tube body, a connecting tube and temperature control pressure equipment. The drainage tube body is composed of an outer cover, an outer tube, an air pressure cavity, an inner tube and transverse tubes, wherein the outer tube and the inner tube are both vertical cylinders which are coaxial with the outer cover and made of silica gel materials, the top end of the outer tube and the top end of the inner tube are integrated into a whole, the lower end of the inner tube extends out of the bottom end of the outer tube and is connected with a VSD high negative pressure source. The temperature control pressure equipment is composed of an air hole, a water tank, a power switch, a circuit board, electric wires, a rubber plug, a heating resistor, an inner tank, water, temperature sensor, a partition plate and a control panel. According to the drainage tube, the requirements for tight attachment, proper pressure and intermittent pressure are achieved, wound marginal cells can smoothly crawl towards the surface of a wound, and the recovery speed of the surface of the wound is increased effectively.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of edge of wound cell promotion formula temperature control expansion and shrinkage type drainage tube of creeping.
Background technology
It is healthy that wound (burnings) is hindered from ancient times harm humans, and how wound repairing, accelerates wound healing, and generations of protecting from infection, reduces whole body and Local Complications, promotion functions recovery, reduction disability rate, and alleviating patient suffering is clinical problem demanding prompt solution.Traditional dressing cannot meet clinical needs as gauze etc., for this situation, various countries ,Ge large-scale medical company competitively drops into a large amount of manpower financial capacities new wound surface processing method and material is studied, wherein Persistent Vacuum (vaccumsealing drainage, VSD) technology is material and technology the most representative, processing wound surface that have clinical use value most.The core of VSD technology is to wrap up many side openings conductions pipe with medical sponge material, recycling has the semi permeability sticking film sealing of biological valve function by drain district, make it to be hedged off from the outer world, change open wound is relatively closed wound surface, then connects high negative pressure source and forms an efficient drainage system.Compare with traditional method, use after VSD technology, patient's wound surface II processing time phase, total hospital stays obviously shorten, and dressing change frequency, material consumption and antibiotic dosage and expense obviously reduce; Biological semi permeability sticking film has good waterproof every bacterium property, can effectively avoid cross infection; Negative-pressure sealed drainage can keep within 7～10 days, not needing more change dressings, the misery that greatly having alleviated frequently changes dressings brings to patient and medical personnel's workload.Although VSD technology has obtained very large success at the various soft tissue defects for the treatment of with in infecting, also there is the limitation of self in it.Due to when using VSD technology, sponge material and wound surface tightly stick together, and have suppressed the epidermis cell of edge of wound and have creeped to wound surface, are unfavorable for the healing of wound surface.
Application number is 201110034798.8 application for a patent for invention " wound surface atomized medicine introducing and intermittently negative pressure closed drainage device ", by produce the intermittent mode that produces negative pressure in the body of drainage tube, in the gap of trying hard to produce in negative pressure, reduce the laminating degree of sponge material and wound surface, the passage of creeping to wound surface to abdicate the epidermis cell of edge of wound, but in fact, fitting tightly of sponge material and wound surface, not only because of the negative pressure in body, also come from self elasticity of muscle, the skin of human body.Therefore, even in the situation that the negative pressure in drainage tube body disappear completely, the situation that still exists sponge material and wound surface to be close to.
Summary of the invention
The present invention is for solving the deficiencies in the prior art, provide a kind of and can make intermittently pucker & bloat of drainage tube, the laminating degree of sponge material and wound surface is intermittently reduced, for the epidermis cell of edge of wound is creeped the edge of wound of the path cell promotion formula temperature control expansion and shrinkage type drainage tube of creeping is provided to wound surface.
The scheme that solves the technology of the present invention problem is: the edge of wound cell promotion formula temperature control expansion and shrinkage type drainage tube of creeping, consists of drainage tube, connection tube and temperaturing control pressure equipment.
Wherein, described drainage tube consists of outer housing, outer tube, atmospheric pressure cavity, inner tube and transverse tube.Outer housing is the cylinder of sponge material, that outer tube and inner tube are is vertical, with the cylinder of the silica gel material of outer housing concentric, outer housing is placed on outer tube, the upper end of inner tube is in outer tube, permeate integral body of the top of outer tube and inner tube, the lower end of inner tube is stretched out from the bottom of outer tube and is connected with VSD high negative pressure source.Permeate integral body of the lower end of outer tube and the lateral wall of inner tube.Along vertical direction, be evenly distributed with within the outer tube the pipe group of the horizontally disposed rigid plastics material of many groups, each group pipe group is comprised of many transverse tubes, and all along the diametric(al) setting of cross circular section of outer tube and the outer end of the many transverse tubes of each group Guan Zuzhong, the cross-sectional circumferential along outer tube is uniformly distributed each root transverse tube.The interior outer end of each root transverse tube is respectively with the tube wall of inner tube with the tube wall of outer tube is bonding and the space beyond outer tube is communicated with the inner space of inner tube.
Connection tube is the flexible pipe of quality of rubber materials, and the upper end of connection tube is bonding with the bottom of outer tube and communicate with the annular space between the inwall of outer tube and the outer wall of inner tube.
Described temperaturing control pressure equipment consists of passage, water tank, on and off switch, circuit board, electric wire, plug, heating resistor, interior case, water, temperature sensor, dividing plate and control panel.Wherein, case lid is placed on the suitable for reading of water tank, on the end face of case lid, have passage, in water tank, there are bottom surface and as a whole, the vertical dividing plate of inwall with water tank, dividing plate is divided into two spaces, left and right by the inner space of water tank, interior case is all airtight aluminum matter casings of each face, and interior case is positioned at the left space of water tank.The outer bottom of interior case and the inner bottom surface of water tank are bonded as one.In described left space, also have the heating resistor fixing with the bottom surface of water tank.Water is housed in left space, and the liquid level while of water is higher than the top of heating resistor and interior case.
On dividing plate, have a horizontal through hole, columniform plug plug is in described horizontal through hole and the two mutual adhering and sealing.On the inwall of the right side wall of water tank, be fixed with circuit board, on the outer wall of the right side wall of water tank, on and off switch and control panel be installed.Heating resistor is all connected with circuit board by the electric wire through plug with temperature sensor, and control panel is all connected with circuit board by the electric wire through water tank right side wall with on and off switch.
The lower end of described connection tube is from top to bottom through case lid bonding with the end face of interior case and communicate with the inside of interior case.
By described control panel, can preset the upper and lower bound of water temperature.
Described temperature sensor can pass to the chip on circuit board by electric wire by the temperature of water.If water temperature is lower than predefined lower limit, chip sends instruction and makes heating resistor and power connection and water is heated, when temperature sensor measures water temperature, reach predefined in limited time upper, chip sends instruction disconnects heating resistor and power supply, makes heating resistor stop heating.Circulation and so forth, makes the water temperature fluctuation up and down between predefined temperature upper limit and lowest temperature in water tank.
After opening VSD high negative pressure source, the body fluid such as the pus of wound surface suck drainage tube and converge to described inner tube from the outer end of many transverse tubes, and are sucked away from the lower end of inner tube.
Adopt such scheme, compared with prior art, the present invention has following marked improvement:
Because the annular space between the outer wall of inner tube and the inwall of outer tube is the space of a sealing and communicates with interior case by connection tube, and air in interior case is subject to the lifting of water temperature expand and shrink, this outline that makes drainage tube expands between occurring along with the lifting of its inner air pressure and shrinks, and this deformation be along with the variation of time regularly, intermittent generation.
When the outline of drainage tube expands, be conducive to outer housing and wound surface fits tightly, this is conducive to create gastight closed environment for suction on the one hand, can improve pumping efficiency, also muscle and skin are played to certain compressing and squeezing action on the other hand, can promote the outflow of the body fluid such as extract, thereby further improve pumping efficiency.
When the outline of drainage tube shrinks, the laminating degree of sponge material and wound surface is reduced, for the epidermis cell of edge of wound is creeped path and sufficient time are provided to wound surface.Meanwhile, owing to having weakened the compressing of drainage tube to the muscle of wound surface or skin, be conducive to the sanguimotor unimpeded of wound surface, be more conducive to the recovery of wound surface.
Use VSD technology to the drain process of wound surface in, drain and recovery due to wound surface, both needed fitting tightly of drainage tube and wound surface, need again the outer wall of drainage tube as much as possible little to the pressure of wound surface generation for a long time, this seems is a pair of insoluble contradiction, but by technical scheme of the present invention, combined together, make in VSD technology drain process, taken into account the demand that fits tightly, suitably oppresses, intermittently oppresses simultaneously, edge of wound cell can be creeped to wound surface smoothly, effectively improved the speed that wound surface recovers.
Accompanying drawing explanation
Fig. 1 is the structural representation of drainage tube of the present invention.
Fig. 2 is the A-A section enlarged diagram of Fig. 1.
Fig. 3 is the structural representation of temperaturing control pressure equipment of the present invention.
In figure: interior case 16. water 17. temperature sensor 18. dividing plate 19. control panels of 01. outer housing 02. outer tube 03. atmospheric pressure cavity 04. inner tube 05. transverse tube 06. connection tube 07. case lid 08. passage 09. water tank 10. on and off switch 11. circuit board 12. electric wire 13. plug 14. heating resistor 15.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
The edge of wound cell promotion formula temperature control expansion and shrinkage type drainage tube of creeping, consists of drainage tube, connection tube 06 and temperaturing control pressure equipment.
Wherein, described drainage tube consists of outer housing 01, outer tube 02, atmospheric pressure cavity 03, inner tube 04 and transverse tube 05.Outer housing 01 is the cylinder of sponge material, that outer tube 02 and inner tube 04 are is vertical, with the cylinder of the silica gel material of outer housing 01 concentric, outer housing 01 is placed on outer tube 02, the upper end of inner tube 04 is in outer tube 02, permeate integral body of the top of outer tube 02 and inner tube 04, the lower end of inner tube 04 is stretched out from the bottom of outer tube 02 and is connected with VSD high negative pressure source.Permeate integral body of the lateral wall of the lower end of outer tube 02 and inner tube 04.In outer tube 02, along vertical direction, be evenly distributed with the pipe group of the horizontally disposed rigid plastics material of many groups, each group pipe group is comprised of many transverse tubes 05, and all along the diametric(al) setting of cross circular section of outer tube 02 and the outer end of the many transverse tubes 05 that each organizes Guan Zuzhong, the cross-sectional circumferential along outer tube 02 is uniformly distributed each root transverse tube 05.The interior outer end of each root transverse tube 05 is respectively with the tube wall of inner tube 04 with the tube wall of outer tube 02 is bonding and the space beyond outer tube 02 is communicated with the inner space of inner tube 04.
Described temperaturing control pressure equipment consists of passage 08, water tank 09, on and off switch 10, circuit board 11, electric wire 12, plug 13, heating resistor 14, interior case 15, water 16, temperature sensor 17, dividing plate 18 and control panel 19.Wherein, case lid 07 is placed on the suitable for reading of water tank 09, on the end face of case lid 07, have passage 08, in water tank 09, there are bottom surface and as a whole, the vertical dividing plate 18 of inwall with water tank 09, dividing plate 18 is divided into two spaces, left and right by the inner space of water tank 09, interior case 15 is all airtight aluminum matter casings of each face, and interior case 15 is positioned at the left space of water tank 09.The inner bottom surface of the outer bottom of interior case 15 and water tank 09 is bonded as one.In described left space, also have the heating resistor 14 fixing with the bottom surface of water tank 09.Water 16 is housed in left space, and the liquid level while of water 16 is higher than the top of heating resistor 14 and interior case 15.
On dividing plate 18, have a horizontal through hole, columniform plug 13 is filled in described horizontal through hole and the two mutual adhering and sealing.On the inwall of the right side wall of water tank 09, be fixed with circuit board 11, on the outer wall of the right side wall of water tank 09, on and off switch 10 and control panel 19 be installed.Heating resistor 14 is all connected with circuit board 11 by the electric wire 12 through plug 13 with temperature sensor 17, and control panel 19 is all connected with circuit board 11 by the electric wire 12 through water tank 09 right side wall with on and off switch 10.
The lower end of described connection tube 06 is from top to bottom through case lid 07 bonding with the end face of interior case 15 and communicate with the inside of interior case 15.
By described control panel 19, can preset the upper and lower bound of water temperature.
Described temperature sensor 17 can pass to the chip on circuit board 11 by electric wire 12 by the temperature of water.If water temperature is lower than predefined lower limit, chip sends instruction and makes heating resistor 14 with power connection and water is heated, when temperature sensor 17 measures water temperature, reach predefined in limited time upper, chip sends instruction disconnects heating resistor 14 and power supply, makes heating resistor 14 stop heating.Circulation and so forth, makes the water temperature fluctuation up and down between predefined temperature upper limit and lowest temperature in water tank 09.
After opening VSD high negative pressure source, the body fluid such as the pus of wound surface suck drainage tube and converge to described inner tube 04 from the outer end of many transverse tubes 05, and are sucked away from the lower end of inner tube 04.
Claims (1)
1. the edge of wound cell promotion formula temperature control expansion and shrinkage type drainage tube of creeping, by drainage tube, connection tube and temperaturing control pressure equipment form, it is characterized in that: described drainage tube is by outer housing, outer tube, atmospheric pressure cavity, inner tube and transverse tube form, outer housing is the cylinder of sponge material, it is vertical that outer tube and inner tube are, cylinder with the silica gel material of outer housing concentric, outer housing is placed on outer tube, the upper end of inner tube is in outer tube, permeate integral body of the top of outer tube and inner tube, the lower end of inner tube is stretched out from the bottom of outer tube and is connected with VSD high negative pressure source, permeate integral body of the lower end of outer tube and the lateral wall of inner tube, along vertical direction, be evenly distributed with within the outer tube the pipe group of the horizontally disposed rigid plastics material of many groups, each group pipe group is comprised of many transverse tubes, all along the outer end of the diametric(al) setting of the cross circular section of outer tube and the many transverse tubes of each group Guan Zuzhong, the cross-sectional circumferential along outer tube is uniformly distributed each root transverse tube, the interior outer end of each root transverse tube is respectively with the tube wall of inner tube with the tube wall of outer tube is bonding and the space beyond outer tube is communicated with the inner space of inner tube, connection tube is the flexible pipe of quality of rubber materials, the upper end of connection tube is bonding with the bottom of outer tube and communicate with the annular space between the inwall of outer tube and the outer wall of inner tube, described temperaturing control pressure equipment is by passage, water tank, on and off switch, circuit board, electric wire, plug, heating resistor, interior case, water, temperature sensor, dividing plate and control panel form, wherein, case lid is placed on the suitable for reading of water tank, on the end face of case lid, have passage, in water tank, have with bottom surface and the inwall of water tank as a whole, vertical dividing plate, dividing plate is divided into two spaces, left and right by the inner space of water tank, interior case is all airtight aluminum matter casings of each face, interior case is positioned at the left space of water tank, the outer bottom of interior case and the inner bottom surface of water tank are bonded as one, in described left space, also have the heating resistor fixing with the bottom surface of water tank, water is housed in left space, the liquid level while of water is higher than the top of heating resistor and interior case, on dividing plate, have a horizontal through hole, columniform plug plug is in described horizontal through hole and the two mutual adhering and sealing, on the inwall of the right side wall of water tank, be fixed with circuit board, on the outer wall of the right side wall of water tank, on and off switch and control panel are installed, heating resistor is all connected with circuit board by the electric wire through plug with temperature sensor, control panel is all connected with circuit board by the electric wire through water tank right side wall with on and off switch, the lower end of described connection tube is from top to bottom through case lid bonding with the end face of interior case and communicate with the inside of interior case, by described control panel, can preset the upper and lower bound of water temperature, described temperature sensor can pass to the chip on circuit board by electric wire by the temperature of water, if water temperature is lower than predefined lower limit, chip sends instruction and makes heating resistor and power connection and water is heated, when measuring water temperature, temperature sensor reaches predefined in limited time upper, chip sends instruction disconnects heating resistor and power supply, make heating resistor stop heating, circulation and so forth, make the water temperature fluctuation up and down between predefined temperature upper limit and lowest temperature in water tank, after opening VSD high negative pressure source, the body fluid such as the pus of wound surface suck drainage tube and converge to described inner tube from the outer end of many transverse tubes, and be sucked away from the lower end of inner tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537304.7A CN103623496B (en) | 2013-11-03 | 2013-11-03 | Edge of wound cell is creeped promotion formula temperature control expansion and shrinkage type drainage tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537304.7A CN103623496B (en) | 2013-11-03 | 2013-11-03 | Edge of wound cell is creeped promotion formula temperature control expansion and shrinkage type drainage tube |
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| Publication Number | Publication Date |
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| CN103623496A true CN103623496A (en) | 2014-03-12 |
| CN103623496B CN103623496B (en) | 2015-09-09 |
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| CN201310537304.7A Active CN103623496B (en) | 2013-11-03 | 2013-11-03 | Edge of wound cell is creeped promotion formula temperature control expansion and shrinkage type drainage tube |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017019669A1 (en) * | 2015-07-28 | 2017-02-02 | J&M Shuler Medical, Inc. | Sub-atmospheric wound therapy systems and methods |
| US11160917B2 (en) | 2020-01-22 | 2021-11-02 | J&M Shuler Medical Inc. | Negative pressure wound therapy barrier |
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| CN201609545U (en) * | 2009-11-10 | 2010-10-20 | 杨克训 | Wound surface closing device and wound comprehensive treatment control system thereof |
| US20100298792A1 (en) * | 2008-01-08 | 2010-11-25 | Bluesky Medical Group Inc. | Sustained variable negative pressure wound treatment and method of controlling same |
| CN202052186U (en) * | 2011-04-26 | 2011-11-30 | 刘铭然 | Burn wound surface drainage device |
| US20120220985A1 (en) * | 2008-10-29 | 2012-08-30 | Keith Patrick Heaton | Modular, reduced-pressure, wound-closure systems and methods |
| CN203017552U (en) * | 2012-12-26 | 2013-06-26 | 李秋 | Negative pressure drainage tube |
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2013
- 2013-11-03 CN CN201310537304.7A patent/CN103623496B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100298792A1 (en) * | 2008-01-08 | 2010-11-25 | Bluesky Medical Group Inc. | Sustained variable negative pressure wound treatment and method of controlling same |
| US20120220985A1 (en) * | 2008-10-29 | 2012-08-30 | Keith Patrick Heaton | Modular, reduced-pressure, wound-closure systems and methods |
| CN201609545U (en) * | 2009-11-10 | 2010-10-20 | 杨克训 | Wound surface closing device and wound comprehensive treatment control system thereof |
| CN202052186U (en) * | 2011-04-26 | 2011-11-30 | 刘铭然 | Burn wound surface drainage device |
| CN203017552U (en) * | 2012-12-26 | 2013-06-26 | 李秋 | Negative pressure drainage tube |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017019669A1 (en) * | 2015-07-28 | 2017-02-02 | J&M Shuler Medical, Inc. | Sub-atmospheric wound therapy systems and methods |
| EP3328310A4 (en) * | 2015-07-28 | 2018-07-11 | J&M Shuler Medical Inc. | Sub-atmospheric wound therapy systems and methods |
| US10583228B2 (en) | 2015-07-28 | 2020-03-10 | J&M Shuler Medical, Inc. | Sub-atmospheric wound therapy systems and methods |
| US11160917B2 (en) | 2020-01-22 | 2021-11-02 | J&M Shuler Medical Inc. | Negative pressure wound therapy barrier |
| US11766514B2 (en) | 2020-01-22 | 2023-09-26 | J&M Shuler Medical Inc. | Negative pressure wound therapy barrier |
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| CN103623496B (en) | 2015-09-09 |
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Effective date of registration: 20160929 Address after: 225109, Tongda Road, 88 head town, Guangling District, Jiangsu, Yangzhou Patentee after: Jiangsu Jiangsu East China Medical Devices Co.,Ltd. Address before: 315100 Zhejiang, Yinzhou District, Zhong Gong Temple Street, Zhong Wang Road, room 55, No. 1004, room Patentee before: NINGBO YINZHOU QINGLIN MEDICAL EQUIPMENT TECHNOLOGY CONSULTING Co.,Ltd. |
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Denomination of invention: Crawling promoting temperature controlled expansion and contraction drainage tube for wound margin cells Granted publication date: 20150909 Pledgee: Yangzhou Branch of Bank of Jiangsu Co.,Ltd. Pledgor: Jiangsu Jiangsu East China Medical Devices Co.,Ltd. Registration number: Y2024980004750 |
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