JP2012029791A - Negative pressure treatment apparatus and control method for the same - Google Patents

Negative pressure treatment apparatus and control method for the same Download PDF

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JP2012029791A
JP2012029791A JP2010170775A JP2010170775A JP2012029791A JP 2012029791 A JP2012029791 A JP 2012029791A JP 2010170775 A JP2010170775 A JP 2010170775A JP 2010170775 A JP2010170775 A JP 2010170775A JP 2012029791 A JP2012029791 A JP 2012029791A
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suction
negative pressure
fluid
amount
delivery
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Kensuke Kiyokawa
Haruka Okano
はるか 岡野
兼輔 清川
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Gunze Ltd
Kurume Univ
グンゼ株式会社
学校法人 久留米大学
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PROBLEM TO BE SOLVED: To provide a negative pressure treatment apparatus 10 and a control method for the negative pressure treatment apparatus 10 capable of acquiring the healed condition of a wound W without removing a covering sheet S for covering the wound W and manually or automatically adjustable in the supply amount of washing liquid to the wound W.SOLUTION: The negative pressure treatment apparatus 10 includes a delivery pump 2 delivering a fluid (the washing liquid) supplied through a supply passage 1, into a closed space formed covering the wound W with the covering sheet S, through a delivery tube 3; a suction pump 5 sucking the fluid (the washing liquid and a body fluid) from the closed space through a suction tube 4 while maintaining the closed space in a negative pressure state; a suction amount measuring means 7 measuring the suction amount of the fluid sucked through the suction tube 4; an arithmetic means 8 computing the difference between the suction amount measured by the suction amount measuring means 7 and the delivery amount of the fluid delivered by the delivery pump 2; and a display means 9 for displaying the computed value.

Description

本発明は、陰圧治療装置、及び陰圧治療装置の制御方法に関する。 The present invention, negative pressure therapy apparatus, and a method of controlling the negative pressure therapy apparatus.

従来、陰圧治療装置として、皮膚潰瘍や組織欠損等の創傷部を被覆シートで覆って創傷部の周囲に閉鎖空間を形成し、この閉鎖空間内へ生理食塩水等の洗浄液を供給する一方、閉鎖空間を陰圧状態に保ちながら、創傷部から滲出する体液を洗浄液と共に吸引する治療装置が知られている(例えば、下記特許文献1、2参照)。 Conventionally, while a negative pressure therapy apparatus, covers the wound of skin ulcers or tissue defects such as coated sheets to form a closed space around the wound, for supplying a cleaning liquid of physiological saline into the closed space, while maintaining a closed space to a negative pressure state, and a body fluid exuding from the wound is known therapy device for sucking together with the cleaning liquid (for example, see the following Patent documents 1 and 2).

かかる陰圧治療装置によれば、創傷部を洗浄し、壊死細胞や細菌等を創傷部から吸引除去するとともに、陰圧によって創傷部の血流を促進し、治癒効果を高めることができる。 According to the negative pressure therapy apparatus, wound were washed and necrotic cells and bacteria such as to aspirate from the wound, promote blood flow wound by negative pressure, it is possible to enhance the healing effect.

特表2008−538962号公報 JP-T 2008-538962 JP 特表2007−509683号公報 JP-T 2007-509683 JP

ところで、この陰圧治療を行う場合、通常、治療初期においては、創傷部から比較的に多量の体液が滲出するため、洗浄液を創傷部へ多量に供給する必要がある(例えば、5000cc/日)。 In the case of performing the negative pressure treatment, usually, in the beginning of treatment, for exudation large amount of body fluids from relatively wound, it is necessary to supplying a large amount of cleaning liquid to the wound (for example, 5000 cc / day) . そして、創傷部の治癒が進むに従って、洗浄液の供給量を減らしてゆくことが行われている(例えば、2000cc/日)。 Then, according to the healing of wounds progresses, it Yuku by reducing the supply amount of the cleaning liquid is being performed (for example, 2000cc / day).

しかしながら、従来では、創傷部の治癒の状態を把握するには、その都度、創傷部から被覆シートを剥がし、多孔質パッドを取り外して創傷部を実際に視認しなければならず、大変手間がかかる難点があった。 Conventionally, however, to know the state of healing of wounds is in each case, from the wound portion peeled cover sheet, it is necessary to view the wound actually remove the porous pad, it takes a lot time there was a drawback. また、被覆シートを剥がすたびに細菌等に感染するおそれがあった。 Further, there is a possibility of infecting bacteria or the like every time peeling off the cover sheet.

本発明は、従来の陰圧治療装置に上記のような難点があったことに鑑みて為されたもので、創傷部を覆う被覆シートを実際に剥がさずとも、創傷部の治癒状態を把握することができ、創傷部への洗浄液の供給量を手動または自動で適宜調節し得る陰圧治療装置とその制御方法を提供することを目的とする。 The present invention has been made in view of the fact that the conventional negative pressure therapy device had difficulties as described above, without actually peeled the cover sheet covering the wound, to grasp the healing status of the wound area it is possible, and to provide appropriately adjusted may negative pressure therapy device and its control method the supply of cleaning liquid to the wound manually or automatically.

本発明は、供給流路を通じて供給された流体を、創傷部を被覆シートで覆って形成した閉鎖空間内へ送出チューブを通じて送出する送出ポンプと、前記閉鎖空間を陰圧状態に保ちながら該閉鎖空間から吸引チューブを通じて流体を吸引する吸引ポンプと、前記吸引チューブを通じて吸引した流体の吸引量を計測する吸引量計測手段と、前記吸引量計測手段により計測した吸引量と前記送出ポンプにより送出した流体の送出量との差を算出する演算手段と、前記演算手段により算出した算出値を表示する表示手段と、を備えたことを特徴としている。 The present invention, the closed space while maintaining the supplied fluid, the delivery pump for delivering through the delivery tube to the wound to cover sheet overlying the formed closed space, said enclosed space to a negative pressure state through the supply passage from a suction pump for sucking fluid through the suction tube, the suction amount measuring means for measuring the suction amount of fluid sucked through the suction tube, the fluid was delivered by the delivery pump and suction amount measured by the suction amount measuring means calculating means for calculating a difference between the transmission amount, is characterized by comprising display means for displaying the calculated estimated value, a by the calculating means.

また、本発明は、前記演算手段により算出した算出値に応じて前記送出ポンプを制御する制御手段を備えたことを特徴としている。 Further, the present invention is characterized by comprising a control means for controlling the delivery pump in accordance with the calculated value calculated by said calculating means.

また、本発明は、前記吸引量計測手段が、前記吸引チューブまたは該吸引チューブに接続された排出流路に設けられた流量計であることを特徴としている。 Further, the present invention, the suction amount measuring means, and wherein a suction tube or flow meter provided in the exhaust passage connected to the suction tube.

また、本発明は、前記吸引量計測手段が、コリオリ式流量計であることを特徴としている。 Further, the present invention, the suction amount measuring means is characterized by a Coriolis flowmeter.

また、本発明は、前記吸引量計測手段が、前記吸引チューブに排出流路を介して接続された排出容器に設けられた液面計であることを特徴としている。 Further, the present invention, the suction amount measuring means is characterized by a liquid level meter provided in the connected dispensing container through the discharge passage to said suction tube.

また、本発明は、前記吸引量計測手段が、静電容量式液面計であることを特徴としている。 Further, the present invention, the suction amount measuring means is characterized by a capacitive level gauge.

また、本発明は、供給流路を通じて供給された流体を、創傷部を被覆シートで覆って形成した閉鎖空間内へ送出チューブを通じて送出する送出ポンプと、前記閉鎖空間を陰圧状態に保ちながら該閉鎖空間から吸引チューブを通じて流体を吸引する吸引ポンプとを備えた陰圧治療装置の制御方法であって、 Further, the present invention is that the fluid supplied through the supply passage, while maintaining a delivery pump for delivering through the delivery tube to the wound to cover sheet overlying the formed closed space, said enclosed space to a negative pressure state the a method for controlling a negative pressure therapeutic device that includes a suction pump for sucking fluid through the suction tube from the closed space,
前記吸引チューブを通じて吸引した流体の吸引量を計測する吸引量計測ステップと、前記吸引量計測ステップにより計測した吸引量と前記送出ポンプにより送出した流体の送出量との差を算出する演算ステップと、前記演算ステップにより算出した算出値を表示する表示する表示ステップと、を備えたことを特徴としている。 A suction amount measuring step of measuring the suction amount of fluid sucked through the suction tube, a calculating step of calculating a difference between the delivery amount of fluid sent by the suction amount measuring suction amount and the delivery pump measured by the step, is characterized by comprising a display step of displaying displays the calculated value calculated by said calculation step.

また、本発明は、前記演算ステップにより算出した算出値に応じて前記送出ポンプを制御する制御ステップを備えたことを特徴としている。 Further, the present invention is characterized by comprising a control step of controlling the delivery pump in accordance with the calculated value calculated by said calculation step.

本発明に係る陰圧治療装置とその制御方法によれば、創傷部から吸引した流体の吸引量を計測し、創傷部から滲出する体液の量を算出し、表示することができるので、創傷部を覆う被覆シートを実際に剥がさずとも、創傷部の治癒状態を把握することができ、治療作業を大幅に軽減でき、細菌等の感染のおそれをより少なくすることができる。 According to negative pressure therapy apparatus and its control method according to the present invention, measuring the suction amount of fluid aspirated from the wound, to calculate the amount of body fluids exuded from the wound, can be displayed, wound without actually peeled the covering sheet covering the can grasp the healing status of the wound, the treatment work can be greatly reduced, it is possible to reduce the risk of infection such as bacteria.

また、創傷部から滲出する体液の算出値に応じて、手動または自動で送出ポンプの送出量を調節することができるので、治癒状態に適した量の洗浄液を創傷部へ供給することができ、治療効果を高めることができる。 Further, according to the calculated value of the body fluid exuded from the wound, it is possible to adjust the delivery rate of the delivery pump manually or automatically, the amount of cleaning liquid that is suitable for cure state can be supplied to the wound, it is possible to enhance the therapeutic effect.

また、洗浄液を効率的に使用できるので、洗浄液の使用量を節約でき、例えば洗浄液バッグの交換など、洗浄液の補充作業を省力化することができる。 Further, since the washing liquid can be efficiently used, can save the amount of washing liquid, for example, replacement of the cleaning solution bag, a replenishing operation of the cleaning liquid can be labor saving. また、洗浄液の使用量を節約できるので、従来のように比較的に容量の大きい洗浄液バッグを使用する結果、装置の可搬性が低下するといった問題もなく、装置の可搬性を向上させることができる。 Since it saves the amount of the cleaning liquid, the result of using a conventional large washing liquid bag relatively capacity as, without problems such as portable device is reduced, it is possible to improve the portability of the apparatus .

さらにまた、本発明に係る陰圧治療装置とその制御方法によれば、創傷部から滲出する体液の量を算出し、表示できるので、例えば異常出血があった場合でも、異常出血を直ちに把握することができ、例えば警報手段により警報を発生させるなどして、異常事態に即座に対処することが可能となる。 Still further in accordance negative pressure therapy system according to the present invention and its control method, and calculates the amount of body fluids exuded from the wound, can be displayed, even if there is, for example abnormal bleeding immediately grasp the abnormal bleeding it can, for example, such as generating an alarm by the warning means, immediately it is possible to cope with abnormal situations.

本実施形態の陰圧治療装置を示す概略全体図である。 It is a schematic overall view showing a negative pressure therapy device of the present embodiment. 創傷部に形成した閉鎖空間を示す概略断面図である。 It is a schematic sectional view showing a closed space formed in the wound. 本実施形態の陰圧治療装置の制御態様の一例を示す説明図である。 Is an explanatory diagram showing an example of a control mode of negative pressure therapy device of the present embodiment. 本発明に係る陰圧治療装置の変形例を示す概略全体図である。 It is an overall schematic diagram showing a modification of the negative pressure therapy apparatus according to the present invention.

本実施形態の陰圧治療装置10は主として、図1に示すように、皮膚潰瘍や組織欠損等の創傷部Wへ流体(洗浄液)を送出チューブ3を通じて送出する送出ポンプ2と、創傷部Wから流体(洗浄液及び体液)を吸引チューブ4を通じて吸引する吸引ポンプ5と、吸引した流体を排出するための排出流路6及び排出容器61と、吸引した流体の吸引量を計測する吸引量計測手段7と、吸引量計測手段7により計測した吸引量に基づいて創傷部Wから滲出する体液量を算出する演算手段8と、演算手段8により算出した算出値を表示する表示手段9と、手動入力、或いは演算手段8により算出した算出値に応じて送出ポンプ2を制御する制御手段21と、を備えている。 Negative pressure therapy apparatus 10 of the present embodiment is mainly, as shown in FIG. 1, a feed pump 2 for delivering through the delivery tube 3 of fluid (cleaning fluid) to the wound W of the skin ulcers or tissue defect or the like, from the wound W a suction pump 5 that sucks fluid (cleaning fluid and body fluids) through the suction tube 4, and the discharge flow path 6 and the discharge vessel 61 for discharging the sucked fluid, suction amount measuring means for measuring the suction amount of the suction fluid 7 When an arithmetic unit 8 for calculating a fluid volume of exuding from the wound W on the basis of the amount of suction was measured by the suction amount measuring means 7, a display unit 9 for displaying the calculated value calculated by the arithmetic unit 8, a manual input, or is provided with a control means 21 for controlling the delivery pump 2 according to the calculated value calculated, the by computing means 8.

図2に示すように、創傷部Wには、柔軟で流体(洗浄液)を透過可能な多孔質パッドPが配置され、創傷部W及びパッドPを被覆するように被覆シートSが貼着されている。 As shown in FIG. 2, the wound W, flexible and capable of transmitting fluid (washing liquid) porous pad P is placed, with cover sheet S is stuck to cover the wound W and the pad P there. この被覆シートSによって、創傷部Wの周囲に実質的に気密な閉鎖空間Cが形成され、この閉鎖空間C内に予め送出チューブ3及び吸引チューブ4の先端開口部が引き入れられている。 This coating sheet S, substantially airtight closed space C is formed around the wound W, and advance the distal end opening of the delivery tube 3 and the suction tube 4 is drawn into the closed space C.

図1に示すように、送出ポンプ2は、洗浄液バッグBから供給流路1を通じて供給された流体(洗浄液)を、送出チューブ3を通じて上記閉鎖空間C内へ送出する。 As shown in FIG. 1, the delivery pump 2, the fluid supplied through the supply channel 1 from the washing liquid bag B (washing liquid), through the delivery tube 3 and sends it to the closed space in the C. 本実施形態では、送出ポンプ2として、供給流路1の少なくとも一部を成す柔軟なチューブを回転ヘッドで順次押し潰してチューブ内の流体を送るチューブポンプを採用している。 In the present embodiment, as a feed pump 2, employs a tube pump to send the fluid in the tube a flexible tube forming at least part of the supply channel 1 is crushed successively pushed by the rotary head. このチューブポンプの回転ヘッドの回転を制御手段21により制御することで、流体(洗浄液)を所定流量で送り出すことができる。 By controlling by the control means 21 the rotation of the rotating head of the tube pump, can be fed fluid (washing liquid) at a predetermined flow rate. なお、送出ポンプ2として、例えばピストンポンプ、ダイアフラムポンプ、ベーンポンプ等の他の定量ポンプを採用することもできる。 As feed pump 2, for example a piston pump, a diaphragm pump, it is also possible to adopt other metering pump such as a vane pump. また、洗浄液として、例えば生理食塩水や、生理食塩水に所要の薬剤等を添加したものを使用することができる。 Further, as the cleaning liquid, for example, physiological saline, may be used those obtained by adding the required drug or the like in saline.

吸引ポンプ5は、吸引チューブ4を通じて閉鎖空間Cを陰圧状態に保ちながら、閉鎖空間C内から流体(洗浄液及び創傷部Wから滲出した体液)を吸引する。 Suction pump 5, while maintaining the negative pressure state a closed space C through the suction tube 4, to suck the fluid (body fluid oozing from the cleaning liquid and the wound W) from the closed space C. 本実施形態では、吸引ポンプ5として、ダイヤフラム式真空ポンプを採用しており、排出流路6に着脱自在に設けられた排出容器61内を減圧することで流体を吸引する。 In the present embodiment, as the suction pump 5 employs a diaphragm type vacuum pump to suck fluid by reducing the pressure of the discharge flow channel 6 to detachably provided evacuation container 61. 吸引された流体は、排出容器61に貯留される。 Aspirated fluid is stored in the discharge vessel 61. また、吸引ポンプ5は、圧力センサ51で検出した閉鎖空間Cの陰圧に応じて不図示の制御手段により制御され、閉鎖空間Cの陰圧を設定レベルに保つことができる。 The suction pump 5 is controlled by a control means (not shown) in response to the negative pressure of the closed space C detected by the pressure sensor 51, it is possible to keep the negative pressure in the closed space C a set level. なお、吸引ポンプ5として、例えばチューブポンプ、ベーンポンプ等の他のポンプを採用することもできる。 As the suction pump 5, may be employed for example a tube pump, the other pump such as a vane pump.

吸引量計測手段7は、排出流路6の途中に設けられた流量計71から成り、吸引チューブ4を通じて吸引した流体(洗浄液及び体液)の吸引量を計測する。 Suction amount measuring means 7 is made from the flow meter 71 provided in the middle of the exhaust passage 6, to measure the suction amount of the suction fluid (cleaning fluid and body fluids) through the suction tube 4. 本実施形態では、流量計71として、コリオリ式流量計を採用しており、吸引した流体の流量を高精度に計測することができる。 In the present embodiment, as a flow meter 71, it adopts a Coriolis flowmeter, it is possible to measure the flow rate of the aspirated fluid with high accuracy. なお、流量計71として、例えばフロート型流量計、羽根車式流量計、差圧式流量計、超音波流量計等の他の流量計を採用することができる。 As the flow meter 71, for example, a float flow meter, the impeller flow meter, differential pressure type flow meter, it is possible to adopt other flowmeter such as an ultrasonic flow meter.

演算手段8は、流量計71により計測した流体(洗浄液及び体液)の吸引量と、送出ポンプ2により送出した流体(洗浄液)の送出量との差を演算する。 Computing means 8 calculates a suction amount of the fluid (cleaning fluid and body fluids) measured by the flowmeter 71, the difference between the delivery amount of the delivery fluid (washing liquid) by delivery pump 2. つまり、流量計71で計測した吸引量と送出ポンプ2による送出量との差は、創傷部Wから滲出した体液の量に相当するため、その差を求めることで体液の滲出量を算出することができる。 In other words, the difference between the transmission amount by the suction amount and delivery pump 2 measured by the flow meter 71, in order to correspond to the amount of body fluids exuded from the wound W, calculating the exudation amount of the body fluid by determining the difference can. なお、本実施形態では、送出ポンプ2の流体送出量を制御手段21から得ているが、例えば、供給流路1または送出チューブ3に他の吸引量計測手段を設け、この吸引量計測手段から送出ポンプ2の流体送出量を得るようにしてもよい。 In the present embodiment, to obtain a fluid delivery amount of the feed pump 2 from the control means 21, for example, provided the other suction amount measuring means in the supply channel 1 or the delivery tube 3, from the suction quantity measuring means it may be obtained a fluid delivery amount of the delivery pump 2.

表示手段9は、演算手段8により算出した算出値を、創傷部Wから滲出した体液量として装置外部へ表示する。 Display means 9, a calculation value calculated by the calculating means 8, and displays the device outside a body fluid amount exuded from the wound W. 本実施形態では、表示手段9として、体液量を表示画面に液晶表示する液晶表示装置を採用しているが、例えば7セグメント表示装置等の他の表示装置を採用することもできる。 In the present embodiment, as the display unit 9, but the fluid volume on a display screen employing a liquid crystal display device for a liquid crystal display, it is also possible to adopt other display apparatus such as a 7-segment display device or the like. また、表示手段9を陰圧治療装置10の操作画面と一体に構成することもできる。 It is also possible to configure the display unit 9 on the operation screen and the integral of the negative pressure therapy apparatus 10.

制御手段21は、演算手段8により算出した算出値に応じて送出ポンプ2の流体送出量を制御する。 Control means 21 controls the fluid delivery amount of the delivery pump 2 in accordance with the calculated value calculated by the arithmetic unit 8. つまり、制御手段21は、演算手段8による算出値と、予め設定された体液基準値とを比較して送出ポンプ2の流体送出量を増減させる。 That is, the control means 21, and the value calculated by the calculating means 8, increasing or decreasing the fluid delivery amount of the delivery pump 2 by comparing with a preset fluid reference value. 例えば、図3(a)(b)に示すように、治癒の進行に従って体液滲出量(算出値)が減少し、体液基準値(X、Y、Z)より小さくなった時点(B、C、D)で、送出ポンプ2のポンプ送出量を所定量、減少させる。 For example, as shown in FIG. 3 (a) (b), the body fluid exudation amount (calculated value) decreases with the progress of healing, body fluid the reference value (X, Y, Z) smaller than since the time (B, C, in D), a predetermined amount of the pump delivery amount of the delivery pump 2 reduces.

こうして本実施形態の陰圧治療装置10は、送出ポンプ2を作動させて予めセットした洗浄液バッグBの流体(洗浄液)を、創傷部Wの閉鎖空間C内へ設定流量、送出する一方、吸引ポンプ5を作動させて、閉鎖空間Cを設定レベルの陰圧状態に保ちながら、創傷部Wから滲出する体液を洗浄液と共に吸引することにより陰圧治療を行う。 Thus negative pressure therapy apparatus 10 of this embodiment, the fluid of the washing liquid bag B has been set in advance by operating the delivery pump 2 (washing solution), set into the closed space C of the wound W flow, while sending, suction pump 5 is operated, and while maintaining the closed space C in negative pressure state of the set level, it performs the negative pressure treatment by body fluids exuding from the wound W to suck together with the cleaning liquid.

そして、吸引した流体の吸引量を流量計71で計測する吸引量計測ステップを行い、次いで、吸引量計測ステップにより計測した吸引量と送出ポンプ2により送出した流体の送出量との差を演算手段8で算出する演算ステップを行う。 Then, a suction amount measuring step of measuring the suction amount of the suction fluid in the flowmeter 71, and then, calculating means the difference between the delivery amount of fluid sent by suction amount and delivery pump 2 measured by the suction amount measuring step It performs calculation step of calculating at 8. そして、演算ステップにより算出した算出値を表示手段9で表示する表示ステップを行うとともに、その算出値に応じて送出ポンプ2を制御する制御ステップを行うことによって、陰圧治療装置10の作動を制御する。 Then, performs a display step of displaying the calculated value calculated by the calculation step on the display means 9, by performing a control step of controlling the delivery pump 2 in accordance with the calculated value, controls the operation of the negative pressure therapy apparatus 10 to.

このように本実施形態の陰圧治療装置10によれば、創傷部Wから吸引した流体の吸引量を計測し、創傷部Wから滲出する体液の量を算出し、表示手段に表示することができるので、創傷部Wを覆う被覆シートSを実際に剥がさずとも、創傷部Wの治癒の状態を把握することができる。 According to negative pressure therapy device 10 of the present embodiment, it measures the amount of suction fluid sucked from the wound W, and calculates the amount of body fluids exuded from the wound W, is displayed on the display means since it, without actually peeled the cover sheet S that covers the wound W, thereby grasping the state of healing of the wound W. したがって、従来のように、創傷部Wの治癒状態を把握するために被覆シートSを剥がしてパッドPを取り外す必要がなく、治療作業を大幅に軽減でき、細菌等の感染をおそれをより少なくできる。 Therefore, as in the conventional, it is not necessary to remove the pad P peel off the cover sheet S in order to grasp the healing status of the wound portion is W, the treatment work can be greatly reduced, it less the risk of infection such as bacteria .

また、創傷部Wから滲出する体液の算出値に応じて制御手段21により送出ポンプ2の流体送出量を制御することができるので、治癒状態に適した量の洗浄液を過不足なく創傷部Wへ供給することができ、治療効果を高めることができる。 Further, it is possible to control the fluid delivery amount of the delivery pump 2 by the control means 21 in accordance with the calculated value of the body fluid exuded from the wound W, the amount of cleaning liquid that is suitable for healing state to just proportion wound W can be supplied, it is possible to enhance the therapeutic effect. また、表示手段8の体液滲出量の表示を見て、手動入力によっても送出ポンプ2の流体送出量を適宜増減させることもできる。 Also, looking at the display of the body fluid oozing amount of the display unit 8 may also be appropriately increased or decreased fluid delivery amount of the delivery pump 2 by manual input. また、洗浄液を効率的に使用できるので、洗浄液の使用量を節約でき、例えば洗浄液バッグBの交換など、洗浄液の補充作業を省力化することができる。 Further, since the washing liquid can be efficiently used, it can save the amount of washing liquid, for example, replacement of the cleaning solution bag B, and replenishing operation of the cleaning liquid can be labor saving. また、洗浄液の使用量を節約できるので、従来のように比較的に容量の大きい洗浄液バッグBを使用する結果、装置の可搬性が低下するといった問題もなく、装置の可搬性を向上させることができる。 Since it saves the amount of the cleaning liquid, the result of using a large cleaning liquid bag B of relatively capacity as in the prior art, no problem portability of the apparatus is reduced, to improve the portability of the device it can.

また、本実施形態の陰圧治療装置10によれば、創傷部Wから滲出する体液の量を算出し、表示手段に表示することができるので、例えば異常出血があった場合でも、異常出血を直ちに把握することができ、異常事態に即座に対処することができる。 Further, according to the negative pressure therapy apparatus 10 of the present embodiment calculates the amount of body fluids exuded from the wound W, it can be displayed on the display unit, even if there is, for example abnormal bleeding, abnormal bleeding immediately able to grasp, it can be addressed immediately to an abnormal situation. また、演算手段8に警報手段を設け、異常出血時に警報を発生させることもできる。 Further, the warning means to the computing means 8 provided, it is also possible to generate an alarm when abnormal bleeding.

また、本実施形態の陰圧治療装置10によれば、洗浄液の流路や創傷部Wの閉鎖空間C等に漏れがあった場合、演算手段8による算出値が例えば負の値になるので、この漏れの発生を直ちに発見し対処することができる。 Further, according to the negative pressure therapy apparatus 10 of the present embodiment, when there is a leak in the closed space C such flow path and wound W of the cleaning liquid, since the value calculated by the calculating means 8, for example, a negative value, the occurrence of this leakage immediately discovered can be addressed.

また、本実施形態の陰圧治療装置10によれば、創傷部Wから滲出する体液の量を算出できるので、体液の累積滲出量を把握することができ、例えばパッドPの汚れを把握し、その交換時期を知ることができる。 Further, according to the negative pressure therapy apparatus 10 of the present embodiment, it is possible to calculate the amount of body fluids exuded from the wound W, it is possible to grasp the cumulative exudation of body fluids, to grasp the contamination of the example pad P, it is possible to know the replacement time. このことによっても、治療作業を大幅に軽減することができる。 This also, it is possible to significantly reduce the treatment work.

また、本実施形態の陰圧治療装置10によれば、創傷部Wから吸引した流体の吸引量を計測するので、排出容器61の流体の貯留量を把握することができる。 Further, according to the negative pressure therapy apparatus 10 of the present embodiment, since the measured suction amount of fluid sucked from the wound W, thereby grasping the storage amount of the fluid dispensing container 61. したがって、例えば警報手段により排出容器61の満杯警報を発生させるなどすることができる。 Therefore, we are possible to like to generate a full alarm dispensing container 61 by, for example, the warning means.

以上、本実施形態の陰圧治療装置10について説明したが、本発明はその他の形態でも実施することができる。 Having described negative pressure therapy apparatus 10 of the present embodiment, the present invention can be implemented in other forms.

例えば、図4に示す陰圧治療装置20のように実施してもよい。 For example, it may be implemented as negative pressure therapy device 20 shown in FIG. 陰圧治療装置20は、流体の吸引量を計測する吸引量計測手段7が、排出容器61に設けられた液面計72から成る点に特徴がある。 Negative pressure therapy device 20, suction amount measuring unit 7 for measuring the suction amount of the fluid, is characterized in comprising a level gauge 72 provided in the dispensing container 61. この変形例では、液面計72として、静電容量式液面計を採用しており、排出容器61に貯留された流体(洗浄液及び体液)の液面の変移に基づいて、吸引チューブ4を通じて吸引した流体(洗浄液及び体液)の吸引量を計測する。 In this modified example, as the liquid level meter 72 employs a capacitive level gauge, based on the displacement of the liquid surface of the stored fluid (cleaning fluid and fluid) in the discharge vessel 61, through the suction tube 4 measuring the suction amount of the suction fluid (cleaning fluid and body fluids). なお、液面計72として、例えばフロート式液面計、超音波式液面計等の他の液面計を採用することもできる。 Note that it as the liquid level meter 72, for example, a float type level gauge, also be employed other liquid level gauges such as an ultrasonic level gauge.

そして、演算手段81が、液面計72により計測した流体(洗浄液及び体液)の吸引量と、送出ポンプ2により送出した流体(洗浄液)の送出量との差を算出し、表示手段9がその算出値を表示するとともに、制御手段21がその算出値に応じて送出ポンプ2の流体送出量を制御する。 Then, the arithmetic unit 81, a suction amount of fluid (cleaning fluid and body fluids) measured by the level gauge 72, and calculates the difference between the delivery amount of fluid sent by delivery pump 2 (washing solution), the display means 9 that as well as displays the calculated value, the control unit 21 controls the fluid delivery amount of the delivery pump 2 in accordance with the calculated value.

また、本発明はその趣旨を逸脱しない範囲内で、当業者の知識に基づいて種々の改良、修正、変形を加えた態様で実施し得る。 Further, the present invention is in a range not departing from its spirit, various improvements based on the knowledge of those skilled in the art, modifications may be conducted in the deformed aspects mutatis. 同一の作用又は効果が生じる範囲内でいずれかの発明特定事項を他の技術に置換した形態で実施しても良く、また、一体に構成されている発明特定事項を複数の部材から構成したり、複数の部材から構成されている発明特定事項を一体に構成した形態で実施してもよい。 May be carried out in substituted form one of the subject matter to other technologies within the same action or effect occurs, also, configure specific matters of the invention is formed integrally of a plurality of members the subject matter which is composed of a plurality of members may be implemented in a form integrally configured.

10、20;陰圧治療装置1;供給流路2;送出ポンプ21;制御手段3;送出チューブ4;吸引チューブ5;吸引ポンプ6;排出流路61;排出容器7;吸引量計測手段71;流量計72;液面計8、81;演算手段9;表示手段W;創傷部S;被覆シートC;閉鎖空間 10,20; negative pressure therapy apparatus 1; supply channel 2; feed pump 21; control means 3; delivery tube 4; suction tube 5; suction pump 6; discharge passage 61; dispensing container 7; suction amount measuring means 71; flowmeter 72; level gauge 8, 81; calculation means 9; display means W; wounds S; cover sheet C; closed space

Claims (8)

  1. 供給流路を通じて供給された流体を、創傷部を被覆シートで覆って形成した閉鎖空間内へ送出チューブを通じて送出する送出ポンプと、 The fluid supplied through the supply passage, and a delivery pump for delivering through the delivery tube to the wound to cover sheet overlying the formed closed space,
    前記閉鎖空間を陰圧状態に保ちながら該閉鎖空間から吸引チューブを通じて流体を吸引する吸引ポンプと、 A suction pump for sucking fluid through the suction tube from the closed space while maintaining the confined space to a negative pressure state,
    前記吸引チューブを通じて吸引した流体の吸引量を計測する吸引量計測手段と、 A suction amount measuring means for measuring the suction amount of fluid sucked through the suction tube,
    前記吸引量計測手段により計測した吸引量と前記送出ポンプにより送出した流体の送出量との差を算出する演算手段と、 Calculating means for calculating a difference between the delivery amount of fluid sent by the suction amount measuring means and the delivery pump and suction amount measured by,
    前記演算手段により算出した算出値を表示する表示手段と、 Display means for displaying the calculated value calculated by said calculating means,
    を備えたことを特徴とする陰圧治療装置。 Negative pressure therapy apparatus characterized by comprising a.
  2. 前記演算手段により算出した算出値に応じて前記送出ポンプを制御する制御手段を備えたことを特徴とする請求項1に記載の陰圧治療装置。 Negative pressure therapy device of claim 1, further comprising a control means for controlling the delivery pump in accordance with the calculated value calculated by said calculating means.
  3. 前記吸引量計測手段が、前記吸引チューブまたは該吸引チューブに接続された排出流路に設けられた流量計であることを特徴とした請求項1または請求項2に記載の陰圧治療装置。 The suction amount measuring means, negative pressure therapy device of claim 1 or claim 2 characterized in that the a suction tube or flow meter provided in the exhaust passage connected to the suction tube.
  4. 前記吸引量計測手段が、コリオリ式流量計であることを特徴とした請求項3に記載の陰圧治療装置。 The suction amount measuring means, negative pressure therapy device of claim 3 which is characterized by a Coriolis flowmeter.
  5. 前記吸引量計測手段が、前記吸引チューブに排出流路を介して接続された排出容器に設けられた液面計であることを特徴とした請求項1または請求項2に記載の陰圧治療装置。 The suction amount measuring means, negative pressure therapy device of claim 1 or claim 2 and characterized in that the liquid level meter provided in the connected dispensing container through the discharge passage to said suction tube .
  6. 前記吸引量計測手段が、静電容量式液面計であることを特徴とした請求項5に記載の陰圧治療装置。 The suction amount measuring means, negative pressure therapy device of claim 5 which is characterized by a capacitive level gauge.
  7. 供給流路を通じて供給された流体を、創傷部を被覆シートで覆って形成した閉鎖空間内へ送出チューブを通じて送出する送出ポンプと、前記閉鎖空間を陰圧状態に保ちながら該閉鎖空間から吸引チューブを通じて流体を吸引する吸引ポンプとを備えた陰圧治療装置の制御方法であって、 The fluid supplied through the supply passage, and a delivery pump for delivering through the delivery tube to the wound to cover sheet overlying the formed closed space, through the suction tube from the closed space while maintaining the confined space to a negative pressure state a method for controlling a negative pressure therapy device including a suction pump for sucking the fluid,
    前記吸引チューブを通じて吸引した流体の吸引量を計測する吸引量計測ステップと、 A suction amount measuring step of measuring the suction amount of fluid sucked through the suction tube,
    前記吸引量計測ステップにより計測した吸引量と前記送出ポンプにより送出した流体の送出量との差を算出する演算ステップと、 A calculating step of calculating a difference between the delivery amount of fluid sent by the suction amount measuring suction amount and the delivery pump measured by the step,
    前記演算ステップにより算出した算出値を表示する表示する表示ステップと、 A display step of displaying displays the calculated value calculated by said calculation step,
    を備えたことを特徴とする陰圧治療装置の制御方法。 The method of negative pressure therapy apparatus, comprising the.
  8. 前記演算ステップにより算出した算出値に応じて前記送出ポンプを制御する制御ステップを備えたことを特徴とする請求項7に記載の陰圧治療装置の制御方法。 The method of negative pressure therapy device of claim 7, characterized in that it comprises a control step of controlling the delivery pump in accordance with the calculated value calculated by said calculation step.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03184558A (en) * 1989-12-15 1991-08-12 Emori Shoji Kk Medical apparatus for measuring discharge amount of body fluid
JPH10504484A (en) * 1994-08-22 1998-05-06 キネティック コンセプツ インコーポレイテッド Drainage technology wound
JPH08187281A (en) * 1995-01-11 1996-07-23 Hideto Kaneyasu Thoracic cavity drainage device
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