CN103784305B - Medical treatment device - Google Patents

Abstract

The present invention relates to a kind of medical treatment device, it has control unit assembly, this assembly includes control unit (10) and docking unit, this docking unit is placed on described medical treatment device, and this control unit includes pump, conduit and for controlling from pump through the controlling organization of fluid stream of conduit, and dock unit and include that dismountable fluid transfer connector, adapter connect the conduit in the inflatable cells of device.One of detachable fluid transfer connector is Inlet gas connector, and its offer air is to pump, and is provided with filter (24).Control but with also include multiple valve, it is between pump and conduit, and these multiple valves are arranged to the structure of classification.

Description

Medical treatment device

The application is PCT Patent Application (the China national Application No. 200780002732.2 having been enter into National Phase in China submitted on January 24th, 2007, international application no is PCT/GB2007/000244, denomination of invention " control unit assembly ") divisional application.

Technical field

The present invention relates to a kind of control unit assembly, be used together for medical treatment device, especially and such as pneumatic medical device for the compressor of extremity.In particular it relates to the control unit assembly that a kind of and mobile compressor is used together, this compressor is be applicable to the treatment at lower limb venous ulcer, edema, deep venous thrombosis and angiopathy.

Background technology

It is known for needing the various medical treatment devices being expand under desired pressure by the one or more compartments (cell) with liquid, such as, be used for executing stressed compressor or being used for the pressure off-loading devices of the such as air cushion or cushion that make pressure spot smooth.Compressor it is well known that the extremity for compression pressure is applied to patient.The device of these types is used to assist mainly in and prevents deep venous thrombosis (DVT), angiopathy and minimizing edema.The device of prior art is suitably employed in hospital environment, the DVT that they are mainly used for preventing in patient in this hospital environment, and for this patient, this situation probably deteriorates.US 5117812, US 5022387 and US 5263473 (Kendall company), US 6231532 (Tyco Internaional, Inc), US 6440093 (McEwen et al.) and US 6463934 (Aircast limited company) disclose this device.

Compression treatment is used in the treatment of lower limb venous ulcer.This treatment relies on compression, and such compression can make decrease in edema and can improve the blood return via Venous system.This in turn reduces the residence time of the blood for being supplied to lower extremity and reduce the seriousness of ischemic event in extremity, this ischemic event may result in tissue injury.

The compression of extremity can be obtained by pneumatic compression device or hydraulic compression device.

WO 2004/084790 discloses a type of mobile compressor.Mean that the user wearing compressor has relative freedom to stroll about with " movement ".The device of WO 2004/084790 includes the one or more fluid inflatable cuffs being arranged for being through on lower limb or on arm, and this bandage comprises one or more compartment.Depending on desired pressure limit, this device allows regulation pressure in compartment.Being maintained by the compartment pressure applied in sleeve or bandage by the pump operated by automatic control unit and valve, this automatic control unit detection pressure in each compartment of whole device declines or pressure raises.When the sensor by being placed in compartment detects pressure excess or insufficient pressure, control unit starts pump to recover intended pressure.

In the compressor of prior art, control unit is the single parts being typically not integrated on compressor and can be remotely operated.This is usually located on the belt of user, and this belt is placed in pocket or is carried around setting about, and this is inconvenient to user.

Owing to control unit generally comprises pump, circuit, conduit for control unit being connected on compressor, valve, power supply etc., so control unit is the biggest.Therefore, known control unit is bulky and heavy.To cause extra weight load on the outer surface of compressor because known control unit being linked, this burden can weaken the mobility of user, so being not-so-practical by cell location the most.Owing to the device of most prior art is all used in hospital environment, and the mobility that patient is there is not the main problem considered, so integrated positioning is not required.If control unit be positioned on device, then weight will be localized within the junction point of device, this can cause weight uneven on compressor.And, from the bulky control unit that the outer surface of compressor is prominent, unit can be collided when a user moves and may damage, and this would prove unsuitable for being through below medicated clothing.

The size reducing control unit has obstacle.In the past, the conduit between pump and inflatable cells is outside, and therefore this will appear from trip or is wound around hidden danger.The power consumption of the parts in typical hospital device will make battery excessive so that device cannot be carried on itself, and this will make its volume the hugest so that cannot be through below medicated clothing.

Disadvantages mentioned above can cause patient adaptability relatively low and use limited.So, seeking a kind of control unit, this control unit be the integral part of the device with less profile and its internal part by abundant miniaturization so that not interfering with the performance of control unit or medical treatment device.

Summary of the invention

According to the first aspect of the invention, it is provided that for the control unit of medical treatment device, wherein, control unit includes pump, conduit and for controlling from pump through the controlling organization of fluid stream of conduit, it is characterised in that conduit is placed in the rigid internal passage in control unit.

The control unit of the present invention has the advantage that, is i.e. rigidity due to conduit, so it is possible for making dismountable connection between control unit and docking unit (docking unit), this docking unit is a part for medical treatment device.This also makes can not have outer conduit between the docking unit in control unit and medical treatment device.So, control unit can be easy to be connected to pull down on medical treatment device and from medical treatment device.

According to the second aspect of the invention, it is provided that for the control unit assembly of medical treatment device, wherein, assembly includes control unit and docking unit, and this docking unit is placed on medical treatment device, wherein,

Control unit includes pump, conduit and for controlling from pump through the controlling organization of fluid stream of conduit, and docks unit and include dismountable fluid transfer connector, and this adapter connects the conduit in the inflatable cells of device.

Preferably, docking unit also includes gripper shoe, and adapter is the most unbending adapter of plug and socket type.Adapter preferably forms gas-tight seal and allows repeatedly to link in control unit and remove from control unit.The number of adapter and arrange and will be suitable for the number of compartment being present in device.

Offer with the gripper shoe of rigid connector allows control unit to be inserted directly in device and allow it to be removed and be inserted into.Which overcome the needs of long range positioning to control unit assembly.Instead, air or fluid are drawn into conduit and guide in the compartment of the rigid fluid transfer adapter of gripper shoe, entrance compressor from external source by pump.

The rigid connector herein proposed works securely to remain on control unit assembly, allows control unit to be prone to from compressor dismounting simultaneously.In order to help control unit to be fastened on device, it is possible to provide extra press-fit maintaining body, this maintaining body is worked against spring biasing and can be released by the button on press control unit.

The existence of docking unit and removable fluid adapter provides the advantage that, i.e. control unit is moveable, so it is recycling.This is typically sufficiently expensive owing to manufacturing control unit assembly.Being designed to single unit, it can have the working life in many years and can between the devices and be transferred between patient.In order to give the treatment that patient calculates, it is desirable to reuse control unit rather than each patient with the most just processing it.On the contrary, the medical treatment device of its inner surface contact patient skin is typically single-minded use and is no longer necessary to the most processed once specific patient.In any case, compressor the most typically has the working life less than 6 months.It would thus be advantageous to be prone to remove control unit assembly from medical treatment device and be prone to replace on another medical treatment device this control unit assembly.

According to the present invention, conduit in a control unit is preferably rigid internal passage, and this passage is the most whole to be placed in control unit.

Term " manifold " is used to mean that fluid transfer conduits forms the labyrinth of passage in the rigid material of control unit.Preferably, conduit terminates at adapter, and this adapter is suitable to constitute and the connection of control unit assembly with other parts of compressor.Manifold substitutes the multiple pipes between pump and device, and makes control unit sufficiently compact to be accommodated in docking unit.Docking unit is preferably the bag in the exterior contour of device.

According to the present invention, control unit the most also includes the multiple valves being placed between pump and conduit, and the plurality of valve is arranged with the structure of one-tenth grade classification in other words.

Meaning the proximity relation according to valve in direction of fluid flow with pump with term " tree of the valve of the classification in other words of band grade ", this valve is arranged in a hierarchal manner.Valve near pump directs fluid flow at the valve of another grade.By this way, the number of the valve for controlling multiple inflatable cells that must possess in a control unit is decreased.

The partialization valves that thered is provided is arranged the number allowed by reducing valve and is therefore reduced space that they occupy and their power consumption reduces the size of control unit.This allows control unit assembly to be most closely positioned on the outer sleeve of compressor or in outer sleeve.When placed discretely within an outer sleeve of the compression device, will not have the external margin of the control unit can collided or damage during use, this improves patient safety, the life quality of patient and the life-span of control unit.Additionally, by the unit that this dispersion is hidden can expect improve patient compliance.

The tree of the partialization valves of the valve module herein proposed advantageously provides air pressure or the mechanism of fluid pressure the most optionally changing each compartment in compressor in the case of need not simultaneously starting all valves.Additionally, the tree of partialization valves decreases the number of the required valve to obtain pressure change.Due to the less valve of needs, therefore tree allows to reduce the size of control unit.Therefore, this layout is especially suitable for compact power such as battery.Valve is preferably latching valve, because this valve also can reduce the power consumption in device.

Always according to the present invention, it is provided that have and use compressor on extremity, according to the first aspect of the invention and second aspect, this compressor includes control unit assembly.

Preferably, one or more detachable fluid transfer adapters of one aspect of the invention are suitable to be connected with the air in control unit and compressor or fluid transfer conduits.Especially preferably, by the public connector pipe on control unit assembly being engaged with the female connectors slit on compressor or the female connectors slit on control unit assembly can be obtained this connection with the public connector pipe joint on compressor.

In order to fasten control unit, lock can be used to male part and female part are held in position in place.Preferably, such as by pressure outside compressor on button can be easy to release lock, in order to control unit assembly is removed from compressor.

Rigid air or the fluid transfer connector of any number can be applied.It is preferred, however, that provide four or five adapters, and this will depend upon which the demand of compressor.If air or fluid transfer connector include the rigid-plastic material that can be integrally formed as a part for gripper shoe, then this is preferred.Such as rely on casting process can obtain said circumstances during the manufacture of docking unit or gripper shoe.

The control unit assembly of a first aspect of the present invention and second aspect can include extra (standby) portable battery as power supply.This nickel-cadmium cell recharged, Ni-MH battery or lithium battery.

Preferably, in the way of press-fit of sliding, control unit is linked in gripper shoe to engage adapter and lock.

Preferably, compressor has the outer surface of band bag, for accommodating and keeping control unit assembly.Docking cell location is in bag and can advantageously form in gripper shoe.

Depending on indivedual needs of patient, compressor can comprise many inflatable cells, and may be adapted to arm or lower limb.In especially preferred embodiment, device may be adapted to be used in below the knee of patient, and includes three inflatable cells in the region being placed between knee and ankle and two inflatable cells being placed in heel and foot area.

In further aspect of the present invention, provide the control unit assembly for medical treatment device, wherein, assembly includes control unit and docking unit, this docking unit is placed on medical treatment device, wherein, control unit include pump, conduit and for control through conduit air flow controlling organization, and dock unit and include providing for pump dismountable Inlet gas connector of air, this adapter is provided with filter.

By this way, the air inlet of pump is provided with filter, and this filter is arranged on the device side of assembly.When this means when the end of device to its service life and be replaced, control unit can be indirectly provided new filter.If filter is placed in control unit, then during the service life of control unit, in the case of not keeping in repair unit, it can not be replaced.Additionally, provide filter means it is limited to the pollution of control unit and its circuit on the device side of assembly.If filter is present in control unit, then during the operation of device, for filter, unfiltered air will be inhaled in control unit.Owing to filter is in the outside of control unit, so only filtered air is just inhaled in control unit.This has advantage, can improve the reliability of control unit.

Accompanying drawing explanation

Referring now to accompanying drawing, the preferred embodiments of the present invention are described, wherein:

Fig. 1 shows the perspective view of the control unit assembly of the present invention, and this control unit assembly is integrated in moveable compressor, and this moveable compressor is through on the extremity of patient；

Fig. 2 shows for accommodating control unit to form the perspective view of the gripper shoe of the assembly of the present invention；

Fig. 3 shows the perspective view of an end of the control unit of the present invention, it is shown that the adapter in use engaged with the adapter of gripper shoe；

Fig. 4 shows and removes, from compressor, the perspective view that the gripper shoe of assembly and control unit collect with display adapter and spring, is separated by element bias to dismantle this spring of control unit；

Fig. 5 shows the illustrated air flowing logic chart of invention components；With

Fig. 6 shows the schematic diagram of the inside of the control unit of Fig. 1 assembly, which show air manifold.

Detailed description of the invention

In FIG, according to embodiments of the invention, it is shown that be through control unit assembly on the leg of a patient and compressor.Device includes the sleeve 2 with gaiter 4, and this gaiter 4 is connected to tie up on foot 6.Device also includes control unit assembly 8, and this control unit assembly 8 includes control unit 10.Control unit 10 is less, and can be hand-held when removing from sleeve 2.Control unit 10 is that battery is powered and rechargeable, in order to can be recharged when being connected on device 2 when it or dismantle from device 2.Fig. 1 also show the bag 12 being arranged on sleeve 2, for accommodating control unit 10 and the low profile of assembly.The profile of control unit assembly equality circuit and integrated in a device.

Fig. 2 is the perspective view when control unit is removed chosen from device above, it is shown that the inside of bag 12 and gripper shoe 14.Control unit is slidably engaged in bag and can be held in position in by blocking mechanism.Fig. 1 shows the release button 22 on the bag being positioned at device, when depressing this release button 22 from bag release control unit.

Fig. 3 is the perspective view of control unit 10 that is that remove from assembly and that choose below unit, it is shown that for the adapter 16 engaged with the rigid connector of gripper shoe.

Fig. 4 is the perspective view of the gripper shoe 14 removed from device for display purposes, it is shown that for the adapter 18 engaged with the adapter 16 of control unit.Fig. 4 shows and slides into the control unit 10 engaged with gripper shoe 14.When control unit 10 slides into gripper shoe, it starts to compress two springs 20, and this spring 20 works to bias separately control unit 10 and gripper shoe 14.The further sliding motion of control unit 10 makes adapter 16, and 18 engage in a fluid tight manner, and makes control unit close with interlocking, and this lock overcomes spring 20 control unit 10 to be maintained in bag 12.By press push button 22 (Fig. 1) from bag 12 release control unit 10, it can be seen that the profile of this control unit on sleeve 2.Then, spring 20 makes assembly flick, and control unit 10 can be removed from device.The spring 20 being placed in gripper shoe can form in leaf spring, the part of assembly is similarly biased separately by this spring.

Fig. 4 also show the air filter 24 provided on the Inlet gas connector/gas discharge connector of gripper shoe 14.Owing to providing filter in gripper shoe 14, so it is replaced naturally when the control unit is used with a new device.Which reduce the maintenance requirements of control unit.

With reference to Fig. 5 and Fig. 6, control unit 10 has the fluid flow conduits 40,42,44,46,48 terminating in adapter C1, C2, C3 and C4 with air inlet/air vent C5.When requiring compartment expansion, under the instruction from processor (not shown), carry out air inlet by operation pump and valve V4 and valve V5 via conduit 48.Processor command is arranged in air inlet C5 and conduit 40, valve V3, V1 and the V2 between 42,44,46, so that only only having one in any one moment conduit to be in mode of operation.As can see from Figure 5 valve V3 by fluid at any one that air inlet C5 is directed to valve V1 or valve V2, and at any one of valve V1 or valve V2, direct fluid into air vent C5), this selectively opens or closes adapter C1 or C2 or the fluid line of adapter C3 or C4 successively.Valve is preferably latching valve.

In the control unit 10 sensor S1 (Fig. 6) is placed in the conduit 40 between adapter C1 and valve V1.Similarly, sensor S2, S3 and S4 are respectively placed in conduit 42, in 44,46.Sensor S1 is the fluid pressure sensor controlled by processor to sensor S4, and is arranged to provide by respective compartment pressure applied instruction in a device.S5 is independently monitored the pressure in the fluid flow system of device.

Fig. 6 also show air manifold 50, and this air manifold is with its labyrinth channel, and air from pump is supplied to each in adapter C1 to adapter C5 by this passage.Air manifold 50 replaces exterior tube required in prior-art devices between the Remote Control Unit and adapter of device.

Claims (15)

1. the medical treatment device including control unit assembly, wherein said medical treatment device includes the compressor for extremity, wherein said compressor includes the sleeve with one or more inflatable cells, wherein, described control unit assembly is placed on the outer sleeve of described compressor or in described outer sleeve, and wherein, described control unit assembly includes:

Control unit；With

Docking unit, described docking unit is placed on described compressor；

Wherein, described control unit includes pump；Conduit, it rigid air manifold being positioned in described control unit including terminating at one or more adapter；And controlling organization, it is for controlling from described pump through the fluid stream of described conduit；Wherein, described docking unit includes one or more fluid transfer connector, it is detachably connectable to the adapter of described control unit, with described control unit by described docking unit received time the conduit of described control unit is connected in the inflatable cells of described compressor；

Described control unit is slidingly attached to described docking unit, to be formed at the fluid-tight between the adapter of described fluid transfer connector and described control unit.

Medical treatment device the most according to claim 1, it is characterised in that described control unit includes at least two conduit, and valve is placed between described pump and each conduit.

Medical treatment device the most according to claim 2, it is characterised in that described control unit also includes the multiple valves being placed between described pump and described conduit, and the plurality of valve is arranged to the structure of classification.

Medical treatment device the most according to claim 3, it is characterized in that, the structure of the classification of described valve includes the first order latching valve being connected in external source of fluid via described pump, described first order latching valve allows fluid to flow to second level latching valve when opening locking in primary importance, described second level latching valve guides fluid stream between two conduits, described first order latching valve allows fluid to flow to other second level latching valve when opening locking in the second position, and described other second level latching valve guides fluid stream between two other conduits.

Medical treatment device the most according to claim 4, it is characterised in that each in described latching valve is placed in the described manifold of described control unit.

6. according to the medical treatment device described in claim 4 or 5, it is characterised in that fluid is transmitted in the permission of opening of the second level latching valve in the structure of described valve between first inflatable cells and the second inflatable cells of described compressor.

Medical treatment device the most according to claim 1, it is characterised in that include the portable battery as power supply.

Medical treatment device the most according to claim 4, it is characterised in that pressure transducer is between each conduit and its latching valve.

Medical treatment device the most according to claim 1, it is characterised in that described controlling organization includes processor.

Medical treatment device the most according to claim 1, it is characterized in that, described docking unit includes the gripper shoe carrying described fluid transfer connector, and described control unit is slided into and is connected with described gripper shoe, to be formed at the fluid-tight between the adapter of described fluid transfer connector and described control unit.

11. medical treatment devices according to claim 1, it is characterised in that described docking unit is positioned in the bag on the outer surface of described sleeve, described bag accommodates described control unit.

12. medical treatment devices according to claim 1, it is characterized in that, described compressor is suitable for use in below the knee of patient, and includes three inflatable cells in the region being placed between knee and ankle and two inflatable cells being placed in heel and foot area.

13. medical treatment devices according to claim 1, it is characterized in that, described medical treatment device includes at least two inflatable cells, each compartment is all connected on the fluid transfer connector of described docking unit, and described fluid transfer connector engages with the adapter making conduit terminate in described control unit again.

14. medical treatment devices according to claim 1, it is characterised in that described control unit with described dock unit assembling time be integrated in the exterior contour of described compressor.

15. medical treatment devices according to claim 1, it is characterised in that described docking unit also includes Inlet gas connector.