CN201744063U - Negative pressure wound therapy system capable of detecting liquid capacity in liquid collection bottle - Google Patents
Negative pressure wound therapy system capable of detecting liquid capacity in liquid collection bottle Download PDFInfo
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- CN201744063U CN201744063U CN2010202714802U CN201020271480U CN201744063U CN 201744063 U CN201744063 U CN 201744063U CN 2010202714802 U CN2010202714802 U CN 2010202714802U CN 201020271480 U CN201020271480 U CN 201020271480U CN 201744063 U CN201744063 U CN 201744063U
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Abstract
The utility model discloses a negative pressure wound therapy system capable of detecting liquid capacity in a liquid collection bottle, which comprises the liquid collection bottle, negative pressure wound therapy equipment, a wound suite and at least one detecting module, wherein the liquid collection bottle collects wound exudates, the negative pressure wound therapy equipment consists of a negative pressure source and a controller, the wound suite fills wound, seals the wound, and is communicated with the liquid collection bottle through a pipeline, the detecting module comprises an emitting unit, a receiving unit and a detection control unit, the emitting unit emits electromagnetic wave or ultrasonic wave signals to the liquid collecting bottle, the receiving unit receives the electromagnetic wave or ultrasonic wave signals reflected or refracted by the liquid collection bottle, the detection control unit carries out judgment according to whether the receiving unit receives the electromagnetic wave or ultrasonic wave signals or not, and if no, the detection control unit judges that the wound exudates are existed at the position where the detecting module is located. The negative pressure wound therapy system can be used for detecting the liquid capacity in the liquid collection bottle, and is convenient to use.
Description
Technical field
This utility model relates to the negative pressure wound therapy equipment technical field, relates in particular to a kind of negative pressure wound treating system that detects the liquid-collecting bottle liquid capacity.
Background technology
Negative pressure wound therapy equipment, the U.S. is called Negative_Pressure_Wound_Therapy_Devices, abbreviates NPWT as, and its principle promotes the healing of wound for by the wound being applied negative pressure.According to clinical show of the U.S. over nearly 10 years, this equipment has good healing effect to the treatment of wounds of various acute and chronics.
Usually, the negative pressure wound treating system container (being called this container here is liquid-collecting bottle) that comprises negative pressure wound therapy equipment, wound external member and be used for collecting the wound transudate.Wherein, the wound external member is used for wound closure, makes negative pressure space.Negative pressure wound therapy equipment is used to create needed wound negative pressure, and negative pressure wound therapy equipment by a negative pressure source, is formed with a controller.Referring to Fig. 1, shown in the figure a kind of common negative pressure wound treating system.In the frame of broken lines is negative pressure wound therapy equipment 8; 1 is human body wound circumference skin histology; Wound implant 2 covers the human body wound; Wound closure 3 is set above wound implant 2, wound is sealed, wound implant 2 is connected on the liquid-collecting bottle 5 by drainage tube 4, thereby will be directed to from the transudate of wound in the liquid-collecting bottle 5, collect from the transudate of wound by liquid-collecting bottle 5, the other end of liquid-collecting bottle 5 is connected with negative pressure source 6, provides negative pressure by negative pressure source 6, provides power for wound fluid flow to liquid-collecting bottle 5; Negative pressure source 6 connects a controller 7, realizes control by 7 pairs of negative pressure sources of controller 6.This equipment has characteristics usually, and promptly liquid-collecting bottle is equipped with equipment and designs, and is designed to different shape as liquid-collecting bottle, as strip etc., can be close to equipment.In negative pressure wound treating system uses, require after the wound fluid collection that liquid-collecting bottle is collected is expired, must not make the transudate into negative pressure wound therapy equipment that flows backwards, and need in time change liquid-collecting bottle, the general mode that adopts medical personnel or patient directly to observe, determine whether liquid-collecting bottle collects full liquid, use inconvenience.
The utility model content
The purpose of this utility model is, a kind of negative pressure wound treating system that detects the liquid-collecting bottle liquid capacity is provided, and can detect liquid volume in liquid collecting bottle, for medical personnel and patient's use is provided convenience.
For solving the problems of the technologies described above, the negative pressure wound treating system that detects liquid volume in liquid collecting bottle of the present utility model comprises:
Liquid-collecting bottle is collected wound fluid;
Negative pressure wound therapy equipment is made up of negative pressure source and controller;
The wound external member is filled wound and wound closure, is communicated with liquid-collecting bottle by pipeline;
Also comprise at least one detection module, described detection module comprises:
Transmitter unit is to liquid-collecting bottle launching electromagnetic wave or ultrasonic signal;
Receiving element receives through liquid-collecting bottle reflection or refractive electromagnetic wave or ultrasonic signal;
Detect control unit, whether receive electromagnetic wave or ultrasonic signal is judged according to receiving element, if not, then being judged as place, detection module position has wound fluid.
Preferably, described electromagnetic wave is any in infrared ray, visible light, the ultraviolet.
Preferably, described electromagnetic wave is a laser.Select for use laser can guarantee directivity, do not disperse.
Preferably, be provided with some wound fluid liquid level gears in the described liquid-collecting bottle, each liquid level gear is corresponding to a detection module.
Preferably, also comprise siren, the detection control unit that is in the detection module of the highest liquid level gear whether receives electromagnetic wave according to receiving element or ultrasonic signal is judged, if not, it is full then to be judged as the interior wound fluid of liquid-collecting bottle, send the warning triggering signal to siren, the described siren signal that gives the alarm.
Preferably, described detection control unit is controlled electromagnetic wave or the hyperacoustic intensity that transmitter unit sends.
Preferably, electromagnetic wave or hyperacoustic coding rule that described detection control unit control transmitter unit sends judge whether receiving code is effective, and then whether the control receiving element receive.
Preferably, described detection module is 2～10.
Preferably, also comprise display unit, be arranged in the negative pressure wound therapy equipment that described display unit is connected with described detection control unit, show wound fluid liquid level gear in the liquid-collecting bottle.
Preferably, described detection module is arranged on the drive mechanism that can rotate up and down, and described drive mechanism connects a driving mechanism.
Preferably, described drive mechanism is any in screw mandrel, gear train, belt, the skin wheel.
The negative pressure wound treating system that detects the liquid-collecting bottle liquid capacity of the present utility model, because at least one detection module is set, this detection module comprises: transmitter unit, to liquid-collecting bottle launching electromagnetic wave or ultrasonic signal; Receiving element, receive through liquid-collecting bottle reflection or refractive electromagnetic wave or ultrasonic signal, detect control unit, whether receive electromagnetic wave or ultrasonic signal is judged according to receiving element, if not, then be judged as place, detection module position wound fluid is arranged, therefore, can detect the liquid level of wound fluid in the liquid-collecting bottle, make medical personnel and patient can in time recognize the transudate capacity in the liquid-collecting bottle, whether collect full so that in time find liquid-collecting bottle, thereby avoid transudate to flow backwards back in the negative pressure wound therapy equipment, easy to use.
Description of drawings
Fig. 1 is the structural representation of existing negative pressure wound treating system;
Fig. 2 is the structural representation that this utility model can detect the negative pressure wound treating system embodiment one of liquid-collecting bottle liquid capacity;
Fig. 3 is the light path sketch map of A part among Fig. 2;
Fig. 4 is the light path principle figure when the liquid-collecting bottle somewhere does not have transudate among the embodiment one;
Fig. 5 is the light path principle figure when there is transudate in the liquid-collecting bottle somewhere among the embodiment one;
Fig. 6 is the structural representation that this utility model can detect the negative pressure wound treating system embodiment two of liquid-collecting bottle liquid capacity;
Fig. 7 is the light path sketch map of B part among Fig. 6;
Fig. 8 is the sketch map that cooperates that this utility model can detect detection module and drive mechanism, driving mechanism among the negative pressure wound treating system embodiment three of liquid-collecting bottle liquid capacity.
The specific embodiment
Basic design of the present utility model is: when owing to somewhere in the liquid-collecting bottle liquid and no liquid being arranged, the refractive index difference when electromagnetic wave or ultrasound wave pass through herein utilizes this principle can detect the capacity of liquid in the liquid-collecting bottle.Therefore, at existing negative pressure wound treating system, at least one detection module is set, this detection module comprises transmitter unit, receiving element, detection control unit, send electromagnetic wave or ultrasonic signal by transmitter unit to liquid-collecting bottle, receiving element receives through liquid-collecting bottle reflection or refractive electromagnetic wave, detects whether control unit receives electromagnetic wave according to receiving element or ultrasonic signal is judged, if not, then be judged as place, detection module position wound fluid is arranged.
Below in conjunction with accompanying drawing, the negative pressure wound treating system that detects the liquid-collecting bottle liquid capacity of the present utility model is elaborated by specific embodiment.
Embodiment one
Referring to Fig. 2, the negative pressure wound treating system of the detected liquid volume in liquid collecting bottle in the present embodiment comprises:
Liquid-collecting bottle 5 is used to collect wound fluid;
Negative pressure wound therapy equipment 8 is made up of negative pressure source 6 and controller 7;
The wound external member is used to fill wound and wound closure, comprises wound implant 2, wound closure 3, and wound implant 2 is communicated with liquid-collecting bottle 5 by pipeline 4;
Also be provided with four detection modules 9 on the sidewall of liquid-collecting bottle 5, each detection module 9 comprises:
Receiving element 92, receive through liquid-collecting bottle reflection or refractive electromagnetic wave or ultrasonic signal, relatively be arranged on the opposite side of liquid-collecting bottle with transmitter unit 91, make it when liquid-collecting bottle does not have transudate herein, just receive through penetrating refractive electromagnetic wave or ultrasonic signal.
Detect control unit, whether receive electromagnetic wave or ultrasonic signal is judged according to receiving element, if not, then being judged as place, detection module position has wound fluid.
Wherein, the electromagnetic wave that adopts in the present embodiment is an infrared ray, as other embodiment, also can adopt visible light or ultraviolet.
Wherein, the wound fluid liquid level is divided into four gears in the liquid-collecting bottle 5, each gear is corresponding to a detection module 9, whether receiving element according to this detection module 9 receives infrared signal, judge whether transudate is arranged herein, finally can judge liquid level in the liquid-collecting bottle by the receiving element quantity that can receive infrared signal.
Wherein, also comprise the siren (not shown), the detection control unit that is in the detection module of the highest liquid level gear whether receives electromagnetic wave according to receiving element or ultrasonic signal is judged, if not, it is full then to be judged as the interior wound fluid of liquid-collecting bottle, send the warning triggering signal to siren, this siren signal that gives the alarm is in time changed liquid-collecting bottle with prompting medical personnel or patient.
Wherein, detect electromagnetic wave or hyperacoustic intensity that control unit control transmitter unit sends, make the electromagnetic wave or the ultrasonic intensity that send be enough to enable come, can be received the unit and receive, to improve the sensitivity that detects with other stray light differences.
Wherein, detect electromagnetic wave or hyperacoustic coding rule that control unit control transmitter unit sends, judge whether receiving code is effective, and then whether the control receiving element receives.
Wherein, according to practical situation, the quantity of detection module also can be 2,3,5,6,7,8,9 or 10.
Wherein, also comprise the display unit (not shown), be arranged in the negative pressure wound therapy equipment that this display unit is connected with the detection control unit, shows wound fluid liquid level gear in the liquid-collecting bottle, is convenient to medical personnel and patient and uses.
Below the used principle of this utility model is described.
Referring to Fig. 3, Fig. 3 is the light path sketch map at A place among Fig. 2, transmitter unit 91 sends infrared ray S1, sidewall 51 1 sides of process liquid-collecting bottle penetrate refraction and enter liquid-collecting bottle interior zone 52, and then penetrate from sidewall 51 opposite sides of liquid-collecting bottle, receiving element 92 receives and penetrates the infrared ray that refraction is come, and another part Infrared is through being reflected into reflection ray S2.
Referring to Fig. 4, the light path sketch map when Fig. 4 does not have transudate for somewhere in the liquid-collecting bottle, the infrared ray light path during below to the no transudate in this place of the liquid-collecting bottle between transmitter unit, the receiving element is further analyzed:
Infrared ray is mapped to liquid-collecting bottle 5 outer surface of outer cover, injects liquid-collecting bottle 5 shells, is mapped to liquid-collecting bottle 5 inner surface of outer cover if α, beta, gamma, θ are respectively, infrared ray and normal angle when injecting the liquid-collecting bottle inner chamber.2 and liquid-collecting bottle section central point angle that if δ is an infrared ray to be injected the liquid-collecting bottle outer surface of outer cover and penetrate from inner surface.If the liquid-collecting bottle radius is R, wall thickness is h.
If liquid-collecting bottle shell refractive index is n1, refractive index is about 1 in the air, by the law of refraction:
Sin α=n1sin β ≈ n1sin γ=sin θ, then α ≈ θ. in like manner can get θ '=α '. θ and θ ' they are isosceles triangle two base angles, so θ=θ ', then α=θ=θ '=α '.
Thus, angle ε is mainly determined by the deflection of infrared ray at 2 circular arc normals of ejaculation point of injecting a little and penetrating from inner surface of liquid-collecting bottle outer surface of outer cover between the infrared ray S13 that then injects the infrared ray S11 of liquid-collecting bottle outer surface of outer cover and penetrate from inner surface, can be similar to writing:
ε＝δ≈h?tanβ/R＝h/R?tan[arcsinα/n1]
The angle of injecting the infrared ray S12 of liquid-collecting bottle inner surface and penetrating between the infrared ray S13 of liquid-collecting bottle outer surface of outer cover also is δ.Angle should be 2 ε=2 δ ≈ 2h/R tan (arcsin α/n1) between infrared ray S11 and infrared ray S13.
When h＜＜R, δ can ignore, the infrared ray S11 that injects the liquid-collecting bottle outer surface of outer cover is substantially parallel with the infrared ray S13 that penetrates the liquid-collecting bottle outer surface of outer cover.
Therefore, as shown in Figure 4, receiving element and transmitter unit are arranged on the same horizontal line, and receiving element can receive through refractive infrared ray, therefore, judges and does not have transudate herein.
In like manner, the infrared ray light path in the time of can transudate being arranged to this place of the liquid-collecting bottle between transmitter unit, the receiving element is further analyzed, referring to Fig. 5, and the index path when Fig. 5 has transudate for somewhere in the liquid-collecting bottle:
If the transudate refractive index is n2, then by the law of refraction:
sinα＝n2?sinθ＝n2?sinθ’＝sinα’。
Angle ε between the infrared ray S12 that injects the infrared ray S11 of liquid-collecting bottle outer surface of outer cover and penetrate from inner surface:
ε＝(α-θ)+δ＝[α-arcsin(sinα/n2)]+δ≈[α-arcsin(sinα/n2)]+h/Rtan(arcsinα/n1)；
When h＜＜R, δ can ignore, angle ε: ε ≈ α-arcsin (sin α/n2);
Angle should be between infrared ray S11 and infrared ray S13: and 2 ε ≈ 2[α-arcsin (sin α/n2)];
Example: when α=30 ° are π/6 radians, and hypothesis transudate refractive index and water are near, are n2=1.33.Then angle should be between infrared ray S11 and infrared ray S13: 2 ε ≈, 0.276 radian, promptly 15.8 °.
Be that angle can produce about 15.8 ° variation between incident, emergent ray when transudate being arranged herein in the liquid-collecting bottle.Therefore, referring to Fig. 5, receiving element does not receive Infrared, and therefore, being judged as has wound fluid herein in the liquid-collecting bottle.
Utilize this characteristic, the position by receiving element is provided with, and makes it not have at liquid-collecting bottle to receive emergent ray under the transudate situation just, can't receive this emergent ray and have at liquid-collecting bottle under the situation of transudate.
Embodiment two
Referring to Fig. 6, the difference part of present embodiment and embodiment one is, in the present embodiment, the same side that transmitter unit in each detection module 9 and receiving element are arranged on liquid-collecting bottle, transmitter unit sends electromagnetic wave or ultrasonic signal, if receiving element can receive electromagnetic wave or ultrasonic signal through the liquid-collecting bottle reflection, then no transudate is located at the detection module place, otherwise, transudate is then arranged.Referring to Fig. 7, transmitter unit 91 emission infrared ray S1, part refraction forms refracted ray S3, part reflection, reflection ray S2 is received unit 92 and receives, and does not have transudate thereby judge detection module 9 positions herein corresponding to liquid-collecting bottle.All the other are consistent with enforcement one, repeat no more herein.
Embodiment three
The difference of present embodiment and aforementioned two embodiment is, a detection module 9 only is set, referring to Fig. 8, detection module 9 is arranged on the screw mandrel that can rotate up and down 10, one end of screw mandrel 10 is connected with motor 11, and under the driving of motor 11, screw mandrel rotates up and down, thereby drive detection module 9 vertically moves up and down along liquid-collecting bottle, and liquid-collecting bottle is detected.
Wherein, screw mandrel 10 also can be substituted as in: gear train, belt, the skin wheel any by other drive mechanisms.
The negative pressure wound treating system that detects liquid volume in liquid collecting bottle of the present utility model makes that the use of negative pressure wound treating system is intelligent more, and can realize the measurement of negative pressure wound therapy equipment liquid volume in liquid collecting bottle.
Only be preferred implementation of the present utility model below, should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with the determined scope of claim.For those skilled in the art, in not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (11)
1. negative pressure wound treating system that can detect liquid volume in liquid collecting bottle comprises:
Liquid-collecting bottle is collected wound fluid;
Negative pressure wound therapy equipment is made up of negative pressure source and controller;
The wound external member is filled wound and wound closure, is communicated with liquid-collecting bottle by pipeline;
It is characterized in that also comprise at least one detection module, described detection module comprises:
Transmitter unit is to liquid-collecting bottle launching electromagnetic wave or ultrasonic signal;
Receiving element receives through liquid-collecting bottle reflection or refractive electromagnetic wave or ultrasonic signal;
Detect control unit, whether receive electromagnetic wave or ultrasonic signal is judged according to receiving element, if not, then being judged as place, detection module position has wound fluid.
2. the negative pressure wound treating system that detects liquid volume in liquid collecting bottle as claimed in claim 1 is characterized in that, described electromagnetic wave is any in infrared ray, visible light, the ultraviolet.
3. the negative pressure wound treating system that detects liquid volume in liquid collecting bottle as claimed in claim 1 is characterized in that, described electromagnetic wave is a laser.
4. the negative pressure wound treating system that detects liquid volume in liquid collecting bottle as claimed in claim 1 is characterized in that, described liquid-collecting bottle is provided with some wound fluid liquid level gears, and each liquid level gear is corresponding to a detection module.
5. the negative pressure wound treating system that detects liquid volume in liquid collecting bottle as claimed in claim 4, it is characterized in that, also comprise siren, the detection control unit that is in the detection module of the highest liquid level gear whether receives electromagnetic wave according to receiving element or ultrasonic signal is judged, if not, it is full then to be judged as in the liquid-collecting bottle wound fluid, sends the warning triggering signal to siren, the described siren signal that gives the alarm.
6. the negative pressure wound treating system that detects liquid volume in liquid collecting bottle as claimed in claim 1 is characterized in that, electromagnetic wave or hyperacoustic intensity that described detection control unit control transmitter unit sends.
7. the negative pressure wound treating system that detects liquid volume in liquid collecting bottle as claimed in claim 1, it is characterized in that, electromagnetic wave or hyperacoustic coding rule that described detection control unit control transmitter unit sends judge whether receiving code is effective, and then whether the control receiving element receive.
8. the negative pressure wound treating system that detects liquid volume in liquid collecting bottle as claimed in claim 1 is characterized in that, described detection module is 2～10.
9. the negative pressure wound treating system that detects liquid volume in liquid collecting bottle as claimed in claim 4, it is characterized in that, also comprise display unit, be arranged in the negative pressure wound therapy equipment, described display unit is connected with described detection control unit, shows wound fluid liquid level gear in the liquid-collecting bottle.
10. the negative pressure wound treating system that detects liquid volume in liquid collecting bottle as claimed in claim 1 is characterized in that, described detection module is arranged on the drive mechanism that can rotate up and down, and described drive mechanism connects a driving mechanism.
11. the negative pressure wound treating system that detects liquid volume in liquid collecting bottle as claimed in claim 10 is characterized in that, described drive mechanism is any in screw mandrel, gear train, belt, the skin wheel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202714802U CN201744063U (en) | 2010-07-23 | 2010-07-23 | Negative pressure wound therapy system capable of detecting liquid capacity in liquid collection bottle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202714802U CN201744063U (en) | 2010-07-23 | 2010-07-23 | Negative pressure wound therapy system capable of detecting liquid capacity in liquid collection bottle |
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| CN2010202714802U Expired - Fee Related CN201744063U (en) | 2010-07-23 | 2010-07-23 | Negative pressure wound therapy system capable of detecting liquid capacity in liquid collection bottle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012009869A1 (en) * | 2010-07-23 | 2012-01-26 | 惠州市华阳多媒体电子有限公司 | Negative pressure wound treatment system capable of detecting volume of liquid in liquid collection bottle |
| CN102743799A (en) * | 2012-07-25 | 2012-10-24 | 李建玉 | Mechanical transmission safety protection device for electric suction apparatus |
| CN106039433A (en) * | 2016-06-30 | 2016-10-26 | 昆山韦睿医疗科技有限公司 | Wound exudate weight detection method and negative pressure wound therapy equipment thereof |
| CN109781212A (en) * | 2019-03-07 | 2019-05-21 | 北京锐达仪表有限公司 | A kind of electromagnetic wave level switch |
-
2010
- 2010-07-23 CN CN2010202714802U patent/CN201744063U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012009869A1 (en) * | 2010-07-23 | 2012-01-26 | 惠州市华阳多媒体电子有限公司 | Negative pressure wound treatment system capable of detecting volume of liquid in liquid collection bottle |
| CN102743799A (en) * | 2012-07-25 | 2012-10-24 | 李建玉 | Mechanical transmission safety protection device for electric suction apparatus |
| CN106039433A (en) * | 2016-06-30 | 2016-10-26 | 昆山韦睿医疗科技有限公司 | Wound exudate weight detection method and negative pressure wound therapy equipment thereof |
| CN109781212A (en) * | 2019-03-07 | 2019-05-21 | 北京锐达仪表有限公司 | A kind of electromagnetic wave level switch |
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Effective date of registration: 20111229 Address after: 516006, No. 1, Xia Bei Road, Dongjiang hi tech Development Zone, Huizhou, Guangdong Patentee after: Huizhou Foryou Medical Electronics Co., Ltd. Address before: 516000, No. 1, Xia Bei Road, Dongjiang hi tech Industrial Park, Huizhou, Guangdong Patentee before: Foryou Multimedia Electronics Co., Ltd. |
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Effective date of registration: 20150930 Address after: 510000, 108 East New Road, Dongjiang hi tech Zone, Huizhou, Guangdong Patentee after: Guan Jiqi Address before: 516006, No. 1, Xia Bei Road, Dongjiang hi tech Development Zone, Huizhou, Guangdong Patentee before: Huizhou Foryou Medical Electronics Co., Ltd. |
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Effective date of registration: 20160708 Address after: 516005, 108 East New Road, Dongjiang hi tech Zone, Huizhou, Guangdong Patentee after: Huizhou Hua Sheng Medical Co Ltd Address before: 510000, 108 East New Road, Dongjiang hi tech Zone, Huizhou, Guangdong Patentee before: Guan Jiqi |
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