JPWO2020162953A5 - - Google Patents

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JPWO2020162953A5
JPWO2020162953A5 JP2021545678A JP2021545678A JPWO2020162953A5 JP WO2020162953 A5 JPWO2020162953 A5 JP WO2020162953A5 JP 2021545678 A JP2021545678 A JP 2021545678A JP 2021545678 A JP2021545678 A JP 2021545678A JP WO2020162953 A5 JPWO2020162953 A5 JP WO2020162953A5
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wound
space
tube
therapy system
valve
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Priority claimed from PCT/US2019/023919 external-priority patent/WO2020162953A1/en
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創傷の上に封止可能なドレッシングであって、前記ドレッシングと前記創傷との間に創傷空間を画定する、ドレッシングと、
前記ドレッシングに結合され、かつ前記創傷空間と流体連通可能なチューブと、
前記チューブと流体連通可能なキャニスタであって、前記キャニスタ、前記チューブ、及び前記ドレッシングが、前記創傷空間を含む密閉空間を画定する、キャニスタと、
前記キャニスタに結合された療法ユニットであって、
前記密閉空間と流体連通可能な空気圧ポンプと、
前記密閉空間内の圧力を測定するように構成されたセンサと、
前記密閉空間と周囲環境との間に配置され、かつ開放位置と閉鎖位置との間で制御可能な弁と、
制御回路であって、
前記空気圧ポンプを制御して、前記密閉空間から空気を除去し、前記密閉空間内の陰圧を確立し、
前記弁を制御して、前記開放位置と前記閉鎖位置との間で繰り返し交互にし、前記弁を通る空気流の制御された速度を可能にし、
前記センサから前記密閉空間内の前記圧力の測定値を受信し、
前記圧力の前記測定値に基づいて、前記創傷空間の体積を決定する、
ように構成された制御回路と、
を備える療法ユニットと、
を備える、
創傷療法システム。 A dressing that can be sealed over the wound and defines a wound space between the dressing and the wound.
A tube that is bound to the dressing and that is fluidly communicable with the wound space,
A canister that allows fluid communication with the tube, wherein the canister, the tube, and the dressing define a closed space including the wound space.
A therapy unit attached to the canister,
Pneumatic pumps that can communicate with the enclosed space and fluids,
A sensor configured to measure the pressure in the enclosed space,
A valve arranged between the closed space and the surrounding environment and controllable between the open position and the closed position.
It ’s a control circuit,
The pneumatic pump is controlled to remove air from the enclosed space and establish a negative pressure in the enclosed space.
The valve is controlled to repeatedly alternate between the open position and the closed position, allowing a controlled velocity of airflow through the valve.
The measured value of the pressure in the enclosed space is received from the sensor, and the measured value is received.
The volume of the wound space is determined based on the measured value of the pressure.
With the control circuit configured as
With a therapy unit and
To prepare
Wound therapy system. 空気流の前記制御された速度が、前記弁と前記キャニスタとの間に配置されたフィルタの制限速度未満である、請求項１に記載の創傷療法システム。 The wound therapy system of claim 1, wherein the controlled velocity of airflow is less than the speed limit of a filter placed between the valve and the canister. 前記弁が、電磁弁を含み、
前記制御回路が、電圧パターンを前記電磁弁に提供することによって、前記弁を制御して、前記開放位置と前記閉鎖位置との間で繰り返し交互にするように構成されている、
請求項１に記載の創傷療法システム。 The valve includes a solenoid valve.
The control circuit is configured to control the valve by providing a voltage pattern to the solenoid valve so as to repeatedly alternate between the open position and the closed position.
The wound therapy system according to claim 1. 前記電圧パターンが、ほぼゼロ電圧と非ゼロ電圧との間で繰り返しステップするステップ関数を含む、請求項３に記載の創傷療法システム。 The wound therapy system of claim 3, wherein the voltage pattern comprises a step function that repeatedly steps between a near zero voltage and a non-zero voltage. 前記電圧パターンが、約５００ミリ秒の最大連続持続時間以下にわたって前記非ゼロ電圧に留まる、請求項４に記載の創傷療法システム。 The wound therapy system of claim 4, wherein the voltage pattern remains at the non-zero voltage for a maximum continuous duration of about 500 milliseconds or less. 電圧パターンが、非ゼロ電圧で約４００ミリ秒、ほぼゼロ電圧で約１００ミリ秒、前記非ゼロ電圧で約４００ミリ秒、及びほぼゼロ電圧で約１００ミリ秒の繰り返しパターンを含む、請求項５に記載の創傷療法システム。 5. The voltage pattern comprises a repeating pattern of about 400 ms at non-zero voltage, about 100 ms at near zero voltage, about 400 ms at said non-zero voltage, and about 100 ms at near zero voltage. The wound therapy system described in. 前記電圧パターンが、前記繰り返しパターンの２つの周期の第１のセット、ほぼゼロ電圧で約１秒、及び前記繰り返しパターンの２つの周期の第２のセットを含む、請求項６に記載の創傷療法システム。 The wound therapy according to claim 6, wherein the voltage pattern comprises a first set of two cycles of the repeating pattern, about 1 second at near zero voltage, and a second set of two cycles of the repeating pattern. system. 前記電圧パターンが、前記電磁弁を約５００ミリ秒の周期で前記開放位置と前記閉鎖位置との間で交互にさせる、請求項３に記載の創傷療法システム。 The wound therapy system according to claim 3, wherein the voltage pattern causes the solenoid valve to alternate between the open position and the closed position in a cycle of about 500 milliseconds. 前記制御回路が、
前記創傷空間の前記体積に基づいてカスタマイズされた創傷療法をカスタマイズし、
前記療法ユニットを制御して、前記カスタマイズされた創傷療法を提供する、
ように更に構成されている、
請求項１に記載の創傷療法システム。 The control circuit
Customized wound therapy based on said volume of said wound space,
Controlling the therapy unit to provide the customized wound therapy.
Further configured as
The wound therapy system according to claim 1. 前記カスタマイズされた創傷療法が、点滴療法を含む、請求項９に記載の創傷療法システム。 The wound therapy system according to claim 9, wherein the customized wound therapy includes infusion therapy. 前記制御回路が、前記創傷空間の前記体積に基づいて前記創傷空間に供給する点滴液の量を決定することによって、前記点滴療法をカスタマイズするように構成されている、請求項１０に記載の創傷療法システム。 10. The wound according to claim 10, wherein the control circuit is configured to customize the infusion therapy by determining the amount of infusion fluid to be supplied to the wound space based on the volume of the wound space. Therapy system. 前記ドレッシングに結合され、かつ前記創傷空間と流体連通可能な点滴チューブと、
前記点滴チューブと流体連通可能な前記点滴液の供給源と、
前記供給源から前記創傷空間に前記量の前記点滴液を提供するように前記制御回路によって制御可能な点滴ポンプと、
を備える、
請求項１１に記載の創傷療法システム。 An IV tube that is coupled to the dressing and is fluid-communication with the wound space.
A source of the drip liquid that can communicate with the drip tube,
An infusion pump that can be controlled by the control circuit to provide the amount of the infusion solution from the source to the wound space.
To prepare
The wound therapy system according to claim 11. 創傷の上に封止可能なドレッシングであって、前記ドレッシングと前記創傷との間に創傷空間を画定する、ドレッシングと、
前記ドレッシングに結合され、かつ前記創傷空間と流体連通可能な第１のチューブと、
前記第１のチューブと流体連通可能なキャニスタであって、前記キャニスタ、前記第１のチューブ、及び前記ドレッシングが、前記創傷空間を含む密閉空間を画定する、キャニスタと、
前記密閉空間と流体連通可能な空気圧ポンプと、
前記密閉空間内の圧力を測定するように構成されたセンサと、
開放位置と閉鎖位置との間で制御可能な電磁弁であって、前記開放位置で空気が周囲環境から前記密閉空間に流れることを可能にし、前記閉鎖位置で空気が前記周囲環境から前記密閉空間に流れることを防止するように構成されている、電磁弁と、
前記ドレッシングに結合され、かつ前記創傷空間及び点滴液の供給源と流体連通可能な点滴チューブと、
前記点滴チューブに結合され、かつ前記創傷空間に一定量の前記点滴液を供給するように制御可能な点滴ポンプと、
制御回路であって、
前記空気圧ポンプを制御して、前記密閉空間から空気を除去し、前記密閉空間内の陰圧を確立し、
前記電磁弁を前記開放位置と前記閉鎖位置との間で繰り返し交互にさせる電圧パターンを前記電磁弁に提供し、
前記センサから前記圧力の測定値を受信し、
前記圧力の前記測定値に基づいて、前記創傷空間の体積を決定し、
前記創傷空間の前記体積に基づいて、前記点滴液の前記量を決定し、
前記点滴ポンプを制御して、前記点滴液の前記量を前記創傷空間に供給する、
ように構成された制御回路と、
を備える、
創傷療法システム。 A dressing that can be sealed over the wound and defines a wound space between the dressing and the wound.
A first tube that is bound to the dressing and is fluidly communicable with the wound space.
A canister that is fluid communicable with the first tube, wherein the canister, the first tube, and the dressing define a closed space including the wound space.
Pneumatic pumps that can communicate with the enclosed space and fluids,
A sensor configured to measure the pressure in the enclosed space,
A solenoid valve that can be controlled between an open position and a closed position, allowing air to flow from the ambient environment to the enclosed space at the open position, and allowing air to flow from the ambient environment to the enclosed space at the closed position. Solenoid valves and, which are configured to prevent flow into
An infusion tube that is coupled to the dressing and is fluid communicable with the wound space and the source of the infusion fluid.
An infusion pump that is coupled to the infusion tube and can be controlled to supply a constant amount of the infusion solution to the wound space.
It ’s a control circuit,
The pneumatic pump is controlled to remove air from the enclosed space and establish a negative pressure in the enclosed space.
The solenoid valve is provided with a voltage pattern in which the solenoid valve is repeatedly alternated between the open position and the closed position.
The measured value of the pressure is received from the sensor, and the measured value is received.
Based on the measured value of the pressure, the volume of the wound space is determined.
The amount of the infusion solution is determined based on the volume of the wound space.
The drip pump is controlled to supply the amount of the drip solution to the wound space.
With the control circuit configured as
To prepare
Wound therapy system. 前記電磁弁を前記開放位置と前記閉鎖位置との間で交互にさせることが、前記周囲環境から前記密閉空間への前記電磁弁を通る空気流の制御された速度を可能にする、請求項１３に記載の創傷療法システム。 13. Claim 13 that alternating the solenoid valve between the open position and the closed position allows for a controlled velocity of airflow through the solenoid valve from the ambient environment to the enclosed space. Wound therapy system as described in. 前記電磁弁が、前記空気が前記第１のチューブの１つ以上の外側ルーメンに入ることを可能にするように配置されている、請求項１４に記載の創傷療法システム。 14. The wound therapy system of claim 14 , wherein the solenoid valve is arranged to allow the air to enter one or more outer lumens of the first tube. 前記電磁弁と前記１つ以上の外側ルーメンとの間に配置されたフィルタを備え、
前記電磁弁を前記開放位置と前記閉鎖位置との間で交互にさせることが、前記周囲環境から前記１つ以上の外側ルーメンへの前記電磁弁を通る空気流の制御された速度を可能にし、
前記制御された速度が、前記フィルタの制限速度未満である、
請求項１５に記載の創傷療法システム。 A filter placed between the solenoid valve and the one or more outer lumens.
Alternating the solenoid valve between the open position and the closed position allows for a controlled velocity of air flow through the solenoid valve from the ambient environment to the one or more outer lumens.
The controlled speed is less than the speed limit of the filter.
The wound therapy system according to claim 15 . 前記点滴ポンプ、前記空気圧ポンプ、及び前記制御回路が、療法ユニット内に収容されている、請求項１３に記載の創傷療法システム。 13. The wound therapy system of claim 13 , wherein the drip pump, the pneumatic pump, and the control circuit are housed within a therapy unit. 前記電磁弁が、前記療法ユニット内に配置されている、請求項１７に記載の創傷療法システム。 17. The wound therapy system of claim 17 , wherein the solenoid valve is located within the therapy unit. 前記電磁弁が、前記療法ユニットの外側に配置され、前記第１のチューブに結合されている、請求項１７に記載の創傷療法システム。 17. The wound therapy system of claim 17 , wherein the solenoid valve is located outside the therapy unit and coupled to the first tube. 密閉空間と流体連通可能な空気圧ポンプと、
前記密閉空間内の圧力を測定するように構成されたセンサと、
前記密閉空間と周囲環境との間に配置され、かつ開放位置と閉鎖位置との間で制御可能な弁と、
制御回路であって、
前記空気圧ポンプを制御して、前記密閉空間から空気を除去し、前記密閉空間内の陰圧を確立し、
前記弁を制御して、前記開放位置と前記閉鎖位置との間で繰り返し交互にし、前記弁を通る空気流の制御された速度を可能にし、
前記センサから前記密閉空間内の前記圧力の測定値を受信し、
前記圧力の前記測定値及び前記制御された速度に基づいて、前記密閉空間の体積を決定する、
ように構成された制御回路と、
を備える、
療法ユニット。 A pneumatic pump that can communicate with a closed space and fluid,
A sensor configured to measure the pressure in the enclosed space,
A valve arranged between the closed space and the surrounding environment and controllable between the open position and the closed position.
It ’s a control circuit,
The pneumatic pump is controlled to remove air from the enclosed space and establish a negative pressure in the enclosed space.
The valve is controlled to repeatedly alternate between the open position and the closed position, allowing a controlled velocity of airflow through the valve.
The measured value of the pressure in the enclosed space is received from the sensor, and the measured value is received.
The volume of the enclosed space is determined based on the measured value of the pressure and the controlled velocity.
With the control circuit configured as
To prepare
Therapy unit. 前記制御回路が、約５００ミリ秒の最大連続持続時間以下にわたって前記弁を前記開放位置に制御することによって、前記弁を通る空気流の前記制御された速度を可能にするように構成されている、請求項２０に記載の療法ユニット。 The control circuit is configured to enable the controlled velocity of airflow through the valve by controlling the valve to the open position over a maximum continuous duration of about 500 ms or less. , The therapy unit according to claim 20 . キャニスタと流体連通可能な空気圧ポンプと、
第１のルーメン及び第２のルーメンを備えるチューブであって、前記第１のルーメンが、ドレッシングから前記キャニスタへの流体の流れを容易にするように構成され、前記第２のルーメンが、前記ドレッシングにおける圧力の測定を容易にするように構成されている、チューブと、
前記第２のルーメン内の圧力を測定するように構成されたセンサと、
第２のルーメンと周囲環境との間に配置され、かつ開放位置と閉鎖位置との間で制御可能な弁と、
前記弁と前記第２のルーメンとの間に配置されたフィルタと、
前記チューブに取り外し可能に結合可能なキャップであって、前記キャップが前記チューブに結合されたときに、前記第１のルーメンと前記第２のルーメンとの間の流体連通を提供する、キャップと、
前記キャップが前記チューブに結合されている間に、前記ポンプを動作させて、前記キャニスタから空気を除去し、前記弁を前記開放位置に制御して、前記センサから前記第２のルーメン内の前記圧力の測定値を受信し、前記第２のルーメン内の前記圧力の前記測定値に基づいて、前記フィルタを通る流量を決定するように構成された制御回路と、
を備える、
創傷療法システム。 A pneumatic pump that can communicate with the canister,
A tube comprising a first lumen and a second lumen, wherein the first lumen is configured to facilitate fluid flow from the dressing to the canister, and the second lumen is the dressing. The tube and, which are configured to facilitate the measurement of pressure in
A sensor configured to measure the pressure in the second lumen,
A valve located between the second lumen and the surrounding environment and controllable between the open and closed positions,
A filter placed between the valve and the second lumen,
A cap that is removable from the tube and that provides fluid communication between the first lumen and the second lumen when the cap is attached to the tube.
While the cap is coupled to the tube, the pump is operated to remove air from the canister, control the valve to the open position, and from the sensor the said in the second lumen. A control circuit configured to receive a pressure measurement and determine the flow rate through the filter based on the pressure measurement in the second lumen.
To prepare
Wound therapy system. 前記制御回路が、前記キャップが前記チューブから取り外され、かつ前記ドレッシングが前記チューブに結合されている間に、前記フィルタを通る前記流量及び前記センサからの前記圧力の追加の測定値に基づいて、創傷空間の体積を決定するように構成されている、請求項２２に記載の創傷療法システム。 The control circuit is based on additional measurements of the flow rate through the filter and the pressure from the sensor while the cap is removed from the tube and the dressing is coupled to the tube. 22. The wound therapy system according to claim 22 , which is configured to determine the volume of the wound space. 前記制御回路が、前記創傷空間の前記体積に基づいてカスタマイズされた創傷療法を提供するように構成されている、請求項２３に記載の創傷療法システム。 23. The wound therapy system of claim 23 , wherein the control circuit is configured to provide customized wound therapy based on said volume of the wound space.
JP2021545678A 2019-02-06 2019-03-25 Wound therapy system with internal alternating orifices Pending JP2022519365A (en)

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US201962802034P 2019-02-06 2019-02-06
US62/802,034 2019-02-06
PCT/US2019/023919 WO2020162953A1 (en) 2019-02-06 2019-03-25 Wound therapy system with internal alternating orifice

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