CN201783064U - Vacuum sealing drainage system applicable to wound healing - Google Patents
Vacuum sealing drainage system applicable to wound healing Download PDFInfo
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- CN201783064U CN201783064U CN2010201731637U CN201020173163U CN201783064U CN 201783064 U CN201783064 U CN 201783064U CN 2010201731637 U CN2010201731637 U CN 2010201731637U CN 201020173163 U CN201020173163 U CN 201020173163U CN 201783064 U CN201783064 U CN 201783064U
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Abstract
The utility model discloses a vacuum sealing drainage system applicable to wound healing, wherein a medical sponge covers a wound surface, after the wound surface is sealed by a polyurethane film, secretion drained from a silicone tube A is drained into a drainage bottle under the action of a negative pressure source; a silicone tube B is connected between the drainage bottle and a drainage controller; and the secretion can be drained from the wound surface through different drainage modes of the drainage controller. The system forms a closed vacuum environment and integrally forms and holds a certain negative pressure through the power provided by the negative pressure source and under the matching of the drainage bottle, the negative pressure can be adjusted through a vacuum meter, and the secretion generated by the whole wound surface is drained under the combined action of the medical sponge and the negative pressure.
Description
Technical field
This utility model relates to a kind of drainage system, more particularly says, is meant that a kind of being applicable to promotes wound healing behind the medical operating, and can remove the negative-pressure sealed drainage system of lacuna or wound secretion.
Background technology
In medical operating, tradition adopts the first phase debridement, carries out that the second phase makes skin graft after changing dressings or methods such as transfer of skin flap reparation the processing of wound, and this traditional method has shortcomings such as treatment cycle length, expense height.Often change dressings, the working doctor amount is big, the misery when patient changes dressings, and be not easy to wound healing.
Closed negative pressure drainage is a kind of novel therapies that promotes wound healing of rising in recent years.Chinese scholars is applied to the treatment of multiple acute and chronic wound surface or promotes surviving of cutify, has all obtained good effect.
Summary of the invention
In order to accelerate patient's healing speed, alleviate the misery that the patient repeatedly changes dressings, this utility model provides a kind of can carry out the batch (-type) drain, meets the pathology cycle period of wound repair, can promote tissue regeneration and incarnant negative-pressure sealed drainage system.The batch (-type) drain working method of this utility model negative-pressure sealed drainage system has stoped traumatic infection, and has alleviated medical personnel's burden.
A kind of negative-pressure sealed drainage system that is applicable to wound rehabilitation of the present utility model, include negative pressure source (400), medical dressing (300), it is characterized in that: also include drain controller (100), drainage bottle (200), A silica gel tube (500), B silica gel tube (600) and C silica gel tube (700);
Be connected with C silica gel tube (700) between negative pressure source (400) and the drain controller (100);
Be connected with B silica gel tube (600) between drain controller (100) and the drainage bottle (200);
Be coated with medical dressing (300) on the wound surface (300A), insert an end of A silica gel tube (500) between wound surface (300A) and medical dressing (300), the other end of A silica gel tube (500) is connected on the drainage bottle (200);
Described drain controller (100) includes housing (1), front shroud (2), electromagnetic valve (3) and drain control circuit board (4); Wherein:
The side panel (1A) of housing (1) is provided with A through hole (1B) and B through hole (1C), the B valve head (3B) that A through hole (1B) is used for electromagnetic valve (3) passes, and B through hole (1C) is used for realizing the drain control circuit board (3) and the side panel (1A) of housing (1) fixing after screw passes this B through hole (1C); The bottom panel (1D) of housing (1) is provided with A installing hole (1E) and B installing hole (1F);
Front shroud (2) is provided with A rectangular opening (2A), B rectangular opening (2B), C rectangular opening (2C), C through hole (2D), D through hole (2E) and E through hole (2F);
A rectangular opening (2A), B rectangular opening (2B) and C rectangular opening (2C) are for be arrangeding in parallel;
C through hole (2D) and D through hole (2E) are for be arrangeding in parallel;
C through hole (2D) and D through hole (2E) are arranged between A rectangular opening (2A), B rectangular opening (2B) and C rectangular opening (2C) and the E through hole (2F);
A rectangular opening (2A) is used for placement and stops drain button (13), and B rectangular opening (2B) is used for placing intermittently drain button (12), and C rectangular opening (2C) is used to place constant drainage button (11);
C through hole (2D) is used to place motion display lamp (14), and D through hole (2E) is used for placement and stops display lamp (15);
The A valve head (3A) that E through hole (2F) is used for electromagnetic valve (3) passes;
Described drain control circuit board (4) adopts ATMEGA8-16AI single-chip microcomputer (U1) as control centre, and this chip has 32 pins, and the pin that does not show connects for conventional, and what the connection of all the other each pins was stated as follows indicates: 4 pins ground connection after capacitor C 3; 6 pins are ground connection after capacitor C 4; 7 pins and 8 pins connect crystal oscillating circuit, i.e. a crystal resonator Y2 in parallel between 7 pins and 8 pins, and 7 pins is through ground connection after capacitor C 1, and 8 pins are ground connection after capacitor C 2; 13 draw
S1 is connected with key switch, and an end of switch S 1 connects after resistance R 1+the 12V power supply, the other end ground connection of switch S 1; 14 draw
S2 is connected with key switch, and an end of switch S 2 connects after resistance R 2+the 12V power supply, the other end ground connection of switch S 2; 15 draw
S3 is connected with key switch, and an end of switch S 3 connects after resistance R 3+the 12V power supply, the other end ground connection of switch S 3; 21 pins connect after capacitor C 5+the 5V power supply; 23 pins connect the circuit that is used to drive electromagnetic valve; 25 pins connect behind resistance R 4, light emitting diode D1+the 5V power supply in turn; 26 pins connect behind resistance R 5, light emitting diode D2+the 5V power supply in turn; 27 pins connect after resistance R 6+the 12V power supply, and 27 pins are through capacitor C 6 ground connection; 27 pins are as the reset terminal of single-chip microcomputer U1, and promptly resistance R 6, capacitor C 6 have constituted a reset circuit; Driving circuit for electromagnetic valve includes photoelectrical coupler PC817 chip (U2), audion Q100, relay J QX-115F; Adopt the 23 pins output control signal of single-chip microcomputer U1 to control photoelectrical coupler U2, and electric current is provided for the base stage of audion Q100, the colelctor electrode amplified current by audion Q100 is after relay drives the break-make of electromagnetic valve.In this utility model, the break-make of electromagnetic valve has realized the suction of whole negative pressure drainage system or the work that stops.23 pins of single-chip microcomputer U1 are connected with 2 pins of photoelectrical coupler U2, and 1 pin of photoelectrical coupler U2 connects after resistance R 7+the 12V power supply, and 3 pins of photoelectrical coupler U2 are connected with the base stage of audion Q100 after resistance R 8, the 4 stitch ground connection of photoelectrical coupler U2; Be in series with resistance R 9 between the emitter stage of the base stage of audion Q100 and audion Q100, and the grounded emitter of audion Q100; The colelctor electrode of audion Q100 is connected with 2 pins of relay U3; Be parallel with diode D3 between 1 pin of relay U3 and 2 pins, and 1 pin connects+the 12V power supply, 3 pins and 4 pin ground connection, 5 pins are connected with electromagnetic valve.
This utility model negative-pressure sealed drainage system has following advantage:
1) is interrupted attraction by the negative pressure of setting and in the time of non-attraction, makes wound surface not be subjected to attract to stimulate, more can promote the growth of local organization, thereby more can play the effect that promotes the pressure ulcer wound healing.
2) by three control buttons of design, control continues to attract and be interrupted the mode that attracts, stops to attract respectively, and the doctor can be switched the vacuum suction mode at any time according to the wound rehabilitation situation.
3) by the connection of silica gel tube realization device, can bear the long-time continuous running, and not have noise, can not influence patient's rest and rehabilitation.
4) whole negative-pressure sealed drainage system is simple to operate, simple in structure, and volume is little, is easy to carry, and has brought very big convenience to hospital.
Description of drawings
Fig. 1 is the structure chart of this utility model negative-pressure sealed drainage system.
Figure 1A is the covering schematic diagram of wound surface, medical dressing and human body skin.
Fig. 2 is the external structure of this utility model drain controller.
Fig. 2 A is the structure chart of this utility model drain controller middle shell.
Fig. 2 B is the structure chart of front shroud in this utility model drain controller.
Fig. 2 C is the content structure scattergram of this utility model drain controller.
Fig. 3 is the circuit theory diagrams of this utility model negative-pressure sealed drainage system.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is described in further detail.
Referring to shown in Figure 1, this utility model is a kind of negative-pressure sealed drainage system that is applicable to wound rehabilitation, and this system includes A silica gel tube 500, B silica gel tube 600, C silica gel tube 700, drainage bottle 200, drain controller 100 and negative pressure source 400;
Be connected with C silica gel tube 700 between negative pressure source 400 and the drain controller 100;
Be connected with B silica gel tube 600 between drain controller 100 and the drainage bottle 200;
Shown in Figure 1A, be coated with medical dressing 300 on the wound surface 300A, between wound surface 300A and medical dressing 300, insert an end of A silica gel tube 500, and around medical dressing 300, be adjacent to the airtight wound surface environment of formation (vacuum environment or title subnormal ambient) with human body skin 300C with polyamine Ethyl formate 300B; The medical personnel carries out coated wound surface when handling actual, should cutting under greater than the medical dressing that can cover whole wound surface 300 of wound surface size.In this utility model, be inserted with between wound surface and the medical dressing 300 and be used for A silica gel tube 500 that the secretions of wound surface product (material that easily healing of wound surface is impacted as blood and slime, pus etc.) is drained, the other end of A silica gel tube 500 is connected on the drainage bottle 200.
In this utility model, negative pressure source 400 is for negative-pressure sealed drainage system provides power, and it provides-0.017MPa～-pressure of 0.065MPa.
In this utility model, A silica gel tube 500, B silica gel tube 600 and C silica gel tube 700 are hollow pipe, and its internal diameter is 0.2mm～10mm.
In this utility model, drain controller 100 can conveniently be controlled constant drainage and the intermittently work switching of drainage way, and drainage way employing at intermittence control make-and-break time automatically realizes.As first drain 5min, stop 2min then, drain 5min again stops the drainage way at intermittence of 2min etc. again.This every drain (suction) 5min, the interruption of stopping 2min attracts the function of method, meets the pathology cycle period of wound repair, helps the mitosis and proteinic the synthesizing of cell most; Be more conducive to the growth of various tissue regenerations and granulation, the accelerated wound healing process.
In this utility model, be referring to the structural design of drain controller 100 shown in Figure 2:
(1) housing 1
Shown in Fig. 2 A, the side panel 1A of housing 1 is provided with A through hole 1B and B through hole 1C, and the B valve head 3B that A through hole 1B is used for electromagnetic valve 3 passes, and B through hole 1C is used for after screw passes this B through hole 1C the side panel 1A of drain control circuit board 3 with housing 1 being realized fixing; The bottom panel 1D of housing 1 is provided with A installing hole 1E and B installing hole 1F, A installing hole 1E and B installing hole 1F be used for the drainage system of this utility model design hung on the wall or column first-class, be easy to the patient convenient action.
Cavity in the housing 1 is used to install electromagnetic valve, controls the circuit board that the drain working method is used.
(2) front shroud 2
Shown in Fig. 2 B, front shroud 2 is provided with three rectangular opening and three through holes that structure is identical;
Three rectangular openings are meant A rectangular opening 2A, B rectangular opening 2B and C rectangular opening 2C, A rectangular opening 2A is used for placement and stops drain button 13 (being the S3 on the circuit theory diagrams), B rectangular opening 2B is used for placing intermittently drain button 12 (being the S2 on the circuit theory diagrams), and C rectangular opening 2C is used to place constant drainage button 11 (being the S1 on the circuit theory diagrams);
Three through holes are meant C through hole 2D, D through hole 2E and E through hole 2F, C through hole 2D is used to place motion display lamp 14 (green light, i.e. D2 in the circuit diagram), and D through hole 2E is used for placement and stops display lamp 15 (red lights, be the D1 in the circuit diagram), the A valve head 3A that E through hole 2F is used for electromagnetic valve 3 passes;
C through hole 2D is parallel design with D through hole 2E, and is arranged between three rectangular openings and the E through hole 2F.
(3) electromagnetic valve 3
Shown in Fig. 2 C, electromagnetic valve 3 is the outsourcing device.In this utility model, electromagnetic valve 3 is to be used for controlling the automation foundation element that the secretions that is produced by wound surface 300A flows to drainage bottle 200 directions.
(4) the drain control circuit board 4
Shown in Fig. 2 C, this drain control circuit board 4 adopts ATMEGA8-16AI single-chip microcomputer U1 as control centre, and this chip has 32 pins, and the pin that does not show connects for conventional, and what the connection of all the other each pins was stated as follows indicates:
4 pins are ground connection after capacitor C 3;
6 pins are ground connection after capacitor C 4;
7 pins and 8 pins connect crystal oscillating circuit, i.e. a crystal resonator Y2 in parallel between 7 pins and 8 pins, and 7 pins is through ground connection after capacitor C 1, and 8 pins are ground connection after capacitor C 2;
13 draw
S1 is connected with key switch, and an end of switch S 1 connects after resistance R 1+the 12V power supply, the other end ground connection of switch S 1;
14 draw
S2 is connected with key switch, and an end of switch S 2 connects after resistance R 2+the 12V power supply, the other end ground connection of switch S 2;
15 draw
S3 is connected with key switch, and an end of switch S 3 connects after resistance R 3+the 12V power supply, the other end ground connection of switch S 3; In this utility model, stop drain button 13 (being the S3 on the circuit theory diagrams), intermittently drain button 12 (being the S2 on the circuit theory diagrams) and constant drainage button 11 (being the S1 on the circuit theory diagrams) all carry out work under low level is effective.Control divides three buttons to realize, these three buttons switch at any time to the attraction mode of negative pressure drainage control, can effectively reduce doctor's the amount of labour, alleviate patient's misery simultaneously, improves the healing rate of wound surface.
21 pins connect after capacitor C 5+the 5V power supply;
23 pins connect the circuit that is used to drive electromagnetic valve;
25 pins connect+the 5V power supply behind resistance R 4, light emitting diode D1 (red light) in turn;
26 pins connect+the 5V power supply behind resistance R 5, light emitting diode D2 (green light) in turn; Light emitting diode D1 and light emitting diode D2 are as the duty indication of controller, and promptly green light is represented work, and red light is then represented to stop.
27 pins connect after resistance R 6+the 12V power supply, and 27 pins are through capacitor C 6 ground connection; 27 pins are as the reset terminal of single-chip microcomputer U1, and promptly resistance R 6, capacitor C 6 have constituted a reset circuit;
Driving circuit for electromagnetic valve includes photoelectrical coupler PC817 chip (U2), audion Q100, relay J QX-115F; Adopt the 23 pins output control signal of single-chip microcomputer U1 to control photoelectrical coupler U2, and electric current is provided for the base stage of audion Q100, the colelctor electrode amplified current by audion Q100 is after relay drives the break-make of electromagnetic valve.In this utility model, the break-make of electromagnetic valve has realized the suction of whole negative pressure drainage system or the work that stops.23 pins of single-chip microcomputer U1 are connected with 2 pins of photoelectrical coupler U2, and 1 pin of photoelectrical coupler U2 connects after resistance R 7+the 12V power supply, and 3 pins of photoelectrical coupler U2 are connected with the base stage of audion Q100 after resistance R 8, the 4 stitch ground connection of photoelectrical coupler U2; Be in series with resistance R 9 between the emitter stage of the base stage of audion Q100 and audion Q100, and the grounded emitter of audion Q100; The colelctor electrode of audion Q100 is connected with 2 pins of relay U3; Be parallel with diode D3 between 1 pin of relay U3 and 2 pins, and 1 pin connects+the 12V power supply, 3 pins and 4 pin ground connection, 5 pins are connected with electromagnetic valve.
The work process of negative-pressure sealed drainage system of the present utility model is divided into constant drainage and two kinds of working methods of drain at intermittence.
Constant drainage: press key 11 (being S1 in the circuit diagram), 13 pins among the single-chip microcomputer U1 obtain low level signal, status indicator lamp green light (being the light emitting diode D2 in the circuit diagram) is bright, electromagnetic valve must not, this moment, the A valve head 3A and the B valve head 3B of electromagnetic valve communicated, form an enclosed vacuum environment by medical dressing to (syndeton as shown in Figure 1) between the negative pressure source, under the power that negative pressure source provides to whole wound surface 300A (shown in Figure 1A) constant drainage.
Intermittently drain: press key 12 (being S2 in the circuit diagram), 14 pins among the single-chip microcomputer U1 obtain low level signal, start timer conter, and status indicator lamp green light (D2) is bright simultaneously, the A valve head 3A of electromagnetic valve and B valve head 3B communicate, and negative pressure drainage of the present utility model system is in negative pressure state; When intervalometer counts up to the concluding time (general 5 minutes of this time was provided with by the medical personnel) then, 23 pins among the single-chip microcomputer U1 are low level, green light (D2) goes out, red light (being the light emitting diode D1 in the circuit diagram) is bright, drive relay and then the A valve head 3A of electromagnetic valve and B valve head 3B are closed, negative pressure is zero, and this moment, drainage bottle and wound surface and atmosphere were connected, and played wound surface and loosened effect.Intervalometer arrives the opening time (can be set to 2 minutes), 23 pins among the single-chip microcomputer U1 are high level, (D2) is bright for green light, red light (D1) goes out, the electromagnetic valve dead electricity, the A valve head 3A of electromagnetic valve and B valve head 3B connect, and negative pressure drainage of the present utility model system is in negative pressure state, and break-make constitutes intermittently drainage way so repeatedly.
Stop: 13 (being S3 in the circuit diagram) that push button, negative pressure drainage of the present utility model system is out of service.
The negative-pressure sealed drainage system that is applicable to wound rehabilitation of this utility model design, be that medical sponge is covered in the wound surface top, with polyamine Ethyl formate pad pasting airtight after, from A silica gel tube 500 effusive minute thing under the effect of negative pressure source 400 by drain to drainage bottle 200; B silica gel tube 600 has connected between drainage bottle 200 and the drain controller 100, discharges from wound surface at the different drain working methods realization secretions of drain controller 100.System of the present utility model forms an enclosed vacuum environment, under the cooperation of power that negative pressure source 400 provides and drainage bottle 200, whole formation is also kept certain negative pressure power, can regulate the size of negative pressure by vacuum meter (device in the negative pressure source 400), the secretions that the whole wound surface of drain produces under the combined effect of medical sponge and this negative pressure.
Claims (3)
1. negative-pressure sealed drainage system that is applicable to wound rehabilitation, include negative pressure source (400), medical dressing (300), it is characterized in that: also include drain controller (100), drainage bottle (200), A silica gel tube (500), B silica gel tube (600) and C silica gel tube (700);
Be connected with C silica gel tube (700) between negative pressure source (400) and the drain controller (100);
Be connected with B silica gel tube (600) between drain controller (100) and the drainage bottle (200);
Be coated with medical dressing (300) on the wound surface (300A), insert an end of A silica gel tube (500) between wound surface (300A) and medical dressing (300), the other end of A silica gel tube (500) is connected on the drainage bottle (200);
Described drain controller (100) includes housing (1), front shroud (2), electromagnetic valve (3) and drain control circuit board (4); Wherein:
The side panel (1A) of housing (1) is provided with A through hole (1B) and B through hole (1C), the B valve head (3B) that A through hole (1B) is used for electromagnetic valve (3) passes, and B through hole (1C) is used for realizing the drain control circuit board (3) and the side panel (1A) of housing (1) fixing after screw passes this B through hole (1C); The bottom panel (1D) of housing (1) is provided with A installing hole (1E) and B installing hole (1F);
Front shroud (2) is provided with A rectangular opening (2A), B rectangular opening (2B), C rectangular opening (2C), C through hole (2D), D through hole (2E) and E through hole (2F);
A rectangular opening (2A), B rectangular opening (2B) and C rectangular opening (2C) are for be arrangeding in parallel;
C through hole (2D) and D through hole (2E) are for be arrangeding in parallel;
C through hole (2D) and D through hole (2E) are arranged between A rectangular opening (2A), B rectangular opening (2B) and C rectangular opening (2C) and the E through hole (2F);
A rectangular opening (2A) is used for placement and stops drain button (13), and B rectangular opening (2B) is used for placing intermittently drain button (12), and C rectangular opening (2C) is used to place constant drainage button (11);
C through hole (2D) is used to place motion display lamp (14), and D through hole (2E) is used for placement and stops display lamp (15);
The A valve head (3A) that E through hole (2F) is used for electromagnetic valve (3) passes;
Described drain control circuit board (4) adopts ATMEGA8-16AI single-chip microcomputer (U1) as control centre, and this chip has 32 pins, and the pin that does not show connects for conventional, and what the connection of all the other each pins was stated as follows indicates: 4 pins ground connection after capacitor C 3; 6 pins are ground connection after capacitor C 4; 7 pins and 8 pins connect crystal oscillating circuit, i.e. a crystal resonator Y2 in parallel between 7 pins and 8 pins, and 7 pins is through ground connection after capacitor C 1, and 8 pins are ground connection after capacitor C 2; 13 draw
S1 is connected with key switch, and an end of switch S 1 connects after resistance R 1+the 12V power supply, the other end ground connection of switch S 1; 14 draw
S2 is connected with key switch, and an end of switch S 2 connects after resistance R 2+the 12V power supply, the other end ground connection of switch S 2; 15 draw
S3 is connected with key switch, and an end of switch S 3 connects after resistance R 3+the 12V power supply, the other end ground connection of switch S 3; 21 pins connect after capacitor C 5+the 5V power supply; 23 pins connect the circuit that is used to drive electromagnetic valve; 25 pins connect behind resistance R 4, light emitting diode D1+the 5V power supply in turn; 26 pins connect behind resistance R 5, light emitting diode D2+the 5V power supply in turn; 27 pins connect after resistance R 6+the 12V power supply, and 27 pins are through capacitor C 6 ground connection; 27 pins are as the reset terminal of single-chip microcomputer U1, and promptly resistance R 6, capacitor C 6 have constituted a reset circuit; Driving circuit for electromagnetic valve includes photoelectrical coupler PC817 chip (U2), audion Q100, relay J QX-115F; Adopt the 23 pins output control signal of single-chip microcomputer U1 to control photoelectrical coupler U2, and electric current is provided for the base stage of audion Q100, colelctor electrode amplified current by audion Q100 is after relay drives the break-make of electromagnetic valve, in the present invention, the break-make of electromagnetic valve has realized the suction of whole negative pressure drainage system or the work that stops, 23 pins of single-chip microcomputer U1 are connected with 2 pins of photoelectrical coupler U2,1 pin of photoelectrical coupler U2 connects after resistance R 7+the 12V power supply, 3 pins of photoelectrical coupler U2 are connected with the base stage of audion Q100 after resistance R 8, the 4 stitch ground connection of photoelectrical coupler U2; Be in series with resistance R 9 between the emitter stage of the base stage of audion Q100 and audion Q100, and the grounded emitter of audion Q100; The colelctor electrode of audion Q100 is connected with 2 pins of relay U3; Be parallel with diode D3 between 1 pin of relay U3 and 2 pins, and 1 pin connects+the 12V power supply, 3 pins and 4 pin ground connection, 5 pins are connected with electromagnetic valve.
2. the negative-pressure sealed drainage system that is applicable to wound rehabilitation according to claim 1 is characterized in that: negative pressure source (400) can provide-0.017MPa～-pressure of 0.065MPa.
3. the negative-pressure sealed drainage system that is applicable to wound rehabilitation according to claim 1 is characterized in that: A silica gel tube (500), B silica gel tube (600) and C silica gel tube (700) are hollow pipe, and its internal diameter can be 0.2mm～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201731637U CN201783064U (en) | 2010-04-28 | 2010-04-28 | Vacuum sealing drainage system applicable to wound healing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201731637U CN201783064U (en) | 2010-04-28 | 2010-04-28 | Vacuum sealing drainage system applicable to wound healing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201783064U true CN201783064U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201731637U Expired - Lifetime CN201783064U (en) | 2010-04-28 | 2010-04-28 | Vacuum sealing drainage system applicable to wound healing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201783064U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829390A (en) * | 2010-04-28 | 2010-09-15 | 北京航空航天大学 | Negative-pressure sealed drainage system suitable for wound rehabilitation |
| CN103566460A (en) * | 2013-10-07 | 2014-02-12 | 金进科技（深圳）有限公司 | Wound care instrument |
-
2010
- 2010-04-28 CN CN2010201731637U patent/CN201783064U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829390A (en) * | 2010-04-28 | 2010-09-15 | 北京航空航天大学 | Negative-pressure sealed drainage system suitable for wound rehabilitation |
| CN101829390B (en) * | 2010-04-28 | 2012-05-30 | 北京航空航天大学 | Negative-pressure sealed drainage system suitable for wound rehabilitation |
| CN103566460A (en) * | 2013-10-07 | 2014-02-12 | 金进科技（深圳）有限公司 | Wound care instrument |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110406 Effective date of abandoning: 20120530 |