CN205592112U - A equipment for distributing wearable type of fluidic - Google Patents

A equipment for distributing wearable type of fluidic Download PDF

Info

Publication number
CN205592112U
CN205592112U CN201521108848.2U CN201521108848U CN205592112U CN 205592112 U CN205592112 U CN 205592112U CN 201521108848 U CN201521108848 U CN 201521108848U CN 205592112 U CN205592112 U CN 205592112U
Authority
CN
China
Prior art keywords
micropump
fixed part
equipment
actuator
fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201521108848.2U
Other languages
Chinese (zh)
Inventor
F·V·丰塔纳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics SRL
Original Assignee
STMicroelectronics SRL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by STMicroelectronics SRL filed Critical STMicroelectronics SRL
Application granted granted Critical
Publication of CN205592112U publication Critical patent/CN205592112U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16831Monitoring, detecting, signalling or eliminating infusion flow anomalies
    • A61M5/16854Monitoring, detecting, signalling or eliminating infusion flow anomalies by monitoring line pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/085Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/02Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04Pumps having electric drive
    • F04B43/043Micropumps
    • F04B43/046Micropumps with piezoelectric drive
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/14212Pumping with an aspiration and an expulsion action
    • A61M5/14224Diaphragm type
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/14244Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/14244Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
    • A61M5/14248Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body of the skin patch type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042Components or details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06Control using electricity
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/14244Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
    • A61M2005/14268Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body with a reusable and a disposable component
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/02General characteristics of the apparatus characterised by a particular materials
    • A61M2205/0244Micromachined materials, e.g. made from silicon wafers, microelectromechanical systems [MEMS] or comprising nanotechnology

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dermatology (AREA)
  • Reciprocating Pumps (AREA)
  • Micromachines (AREA)

Abstract

A equipment for distributing wearable type of fluidic, it can be by the fixed part (30 of object wearing to include, 70 )And can be via fluid coupling (12, 51) and fixed part (30, 70 )In relevancy, including being used for holding the fluidic container (21 with being distributed, 61 )And micropump (22, 62 )Can replacement portion (20, 60 ), the micropump specifically is the MEMS type and is used for through fluid coupling (12, 51 )Send the fluid to fixed part (30, 70 ), fixed part (30, 70 )Include and be used for via pressure sensor device (23 by the configuration, 76 )Control micropump (22, 62 )The electric control module (31 of operation, 71 ), equipment (10, 50 )Include and set up to automatic operation micropump (22, 62 )Actuator (25, 75, 175 ). According to the utility model discloses, pressure sensor device (76) by dispose in fixed part (70) of fluid coupling (51), specifically is close to fluid coupling (51) and needle (74) that be used for distributing the fluid in relevancy terminal export department in relevancy.

Description

For distributing the equipment of the wearable of fluid
Technical field
It relates to the equipment of the wearable for distributing fluid, it includes the fixed part dressed by object and can be via fluidly connecting the replaceable portion being associated with described fixed part, described replaceable portion includes by the container of allocated fluid and being used for by fluidly connecting the Micropump that fluid sends extremely described fixed part for receiving, described fixed part includes the electric control module being arranged to control the operation of Micropump, and this equipment includes the battery actuator for operating described Micropump.
Various embodiments can be applicable to distribute the equipment of fluid, and wherein fluid comprises insulin or other drug preparation.
Background technology
Becoming known for distributing the equipment of the fluid such as comprising insulin or other drug preparation, it can be dressed by user or patient such that it is able to continuously or as required distribution fluid or, and it presents accommodated size and cost.
For such equipment, it is important that implement to control continuously the flowing of fluid medicament with in office why hinder (such as leakages, bubble, obturation etc.) in the case of ensure effectiveness and the safety of patient treated.
The system being known for this purpose is made up of two parts: fixed part, including electronic control unit, memorizer and radio frequency interface, and such as can be dressed by user;And replaceable portion, including for the container of medicament, the Micropump of MEMS (MEMS) type, the actuator with correspondence and the battery powered for actuator.
In more detail, in this connection, Fig. 1 shows the equipment 10 for distributing fluid, and it includes that replaceable portion 20, replaceable portion 20 include again: container 21;MEMS micropump 22, it is received by inlet duct 21a and from the fluid of container 21 and is associated with pressure transducer 23;Actuator 24;And battery 25.Fixed part 30 includes electronic control module 31, and it includes again memorizer 32 and the communication interface 33 operated at radio frequency.
11 represent that the signal between pressure transducer 23 and electronic module 31 connects, and 12 represent that beginning through fixed part 31 from Micropump 22 arrives the fluid distribution pipe of distribution pin 13, wherein distribute pin 13 in the health that fluid medicament is assigned to dress the object of fluid dispensing apparatus 10.
The terminal of 26 actuators 24 representing operation Micropump 22, the axle of such as linear actuators or drift.Micropump 22 generally includes pump chamber, and its roof is made up of barrier film.Terminal 26 periodically applies mechanical pressure to the described barrier film of pump 22.
Via pressure transducer (or sensor) 23 present on MEMS micropump 22, by the control of the pumping pressure of MEMS micropump being performed the control of fluid.
The signal of aforementioned pressure sensor 23 is via wire bonding or by the substrate of some other kinds of connections (by the re-melting of the solder alloy of pre-deposition on MEMS or by distributing conducting resinl or the micro-knot obtained by the ultrasonic re-melting of the heat of the contact of Micropump in substrate) transmission to Micropump 22.From the substrate of Micropump, aforementioned pressure signal is connected 11 at signal and upload the electronic control part 31 transported to fixed part 30, implement signal via sliding contact or spring contact and connect 11.
As shown in Figure 1A, Micropump 22 includes the pumping chamber 22a being made up of three different silicon layers on the top being arranged on silicon base 22d, the silicon layer composition bottom 22ae of Micropump 22 that two of which is extreme and top layer or lid 22f, and determine room floor 22i between which, that dig out wherein is pump chamber 22a.Inlet duct 21a and the outlet towards fluid distribution pipe 12 must be disposed on the bottom 22e of Micropump 22, it is thus possible to it is mutual with substrate 22d, this is because the structure of two valves showed by fluid distribution pipe 12 (21b on inlet duct 21 and the 12b in outlet) makes them can not manufacture on single silicon layer, but must manufacture respectively on the contrary on different layers (bottom 22e and top layer 22f).Thus, the purpose of process is to obtain from pumping chamber 22a through top layer 22f, then returns to the exit circuit of bottom 22e by forming passage 22g (it seals via cap member 22h) on top layer 22f.
The said equipment shows some defects more complicated about framework, the most replaceable portion, and the layout in the MEMS micropump of the arrangement requirement circuit of above-mentioned pressure transducer and bond pad.Additionally, this layout relates on the surface of pump or is disposed therein in the layer being provided with pump itself.
Utility model content
The purpose that embodiment described herein is to improve the potential of the foregoing equipment according to prior art.
Each embodiment realizes above-mentioned purpose due to the equipment that has the property that.
Present disclose provides the equipment of a kind of wearable for distributing fluid, including: fixed part (30;70), fixed part can be dressed by object;And replaceable portion (20;60), replaceable portion can be via fluidly connecting (12;51) with fixed part (30;70) it is associated, replaceable portion (20;60) include for accommodating the container (21 of allocated fluid;61) and Micropump (22;62), Micropump (22;62) MEMS-type it is specially and for by fluidly connecting (12;51) fluid is sent to fixed part (30;70), fixed part (30;70) electric control module (31 is included;71), electric control module is arranged to via pressure sensor apparatus (23;76) described Micropump (22 is controlled;62) operation, equipment (10;50) actuator (25 is included;75;175), actuator is arranged to automatically operate Micropump (22;62), equipment is characterised by: pressure sensor apparatus (76) is disposed in the fixed part (70) fluidly connected in (51), concrete adjacent fluid connect (51) with for distributing the terminal exit portion that the pin (74) of fluid is associated.
Each embodiment is it is envisioned that be arranged in pressure sensor apparatus in fixed part, adjacent to the terminal exit portion fluidly connected being associated with distribution pin.
Each embodiment is it is envisioned that fixed part includes actuator, and this equipment includes the component of the motion for transmitting the Micropump being connected in replaceable portion by the actuator in fixed part.
Each embodiment, it is envisioned that form that conveying member is thin plate or band, is especially formed from steel.
Each embodiment is it is envisioned that aforementioned thin plate is associated with Micropump with lasting manner, and is inserted in the device for engaging actuator.
Each embodiment is it is envisioned that actuator is cantilever actuator device.
Each embodiment is it is envisioned that actuator is linear actuators.
Each embodiment is it is envisioned that engagement device includes the low friction press element being pushed to the surface of thin plate by spring, and other surfaces of thin plate are positioned on actuator, especially on the end of the cantilever of actuator.
Each embodiment is it is envisioned that engagement device includes the permanent magnet being pushed to the surface of thin plate by spring, and other surfaces of thin plate are positioned on actuator, especially on the end of the cantilever of actuator.
Each embodiment is it is envisioned that the outlet fluidly connected of the Micropump being arranged in replaceable portion is connected to the hydraulic circuit of fixed part via the needle system being arranged on fixed part, and wherein needle system penetrates the fluid-tight barrier film in replaceable portion.
Each embodiment it is envisioned that (being arranged on the Micropump in replaceable portion) outlet conduit be positioned in by fluid fluidly connecting relative wall from container transport to Micropump.
Each embodiment is it is envisioned that for the method controlling flowing in wearable device, wearable device is for distributing the fluid of described type, which provide the decline according to the pressure measured by the pressure transducer on the distribution duct downstream in replaceable portion and perform the control of fluid, the downstream being specially pipeline has outlet valve, that is, adjacent to the attachment point of the fluid line with distribution pin.
Accompanying drawing explanation
Now with reference to accompanying drawing, only it is illustrated by way of example each embodiment, wherein:
Fig. 1 and Figure 1A was previously described;
Fig. 2 shows the schematic diagram of the equipment for distributing fluid;
Fig. 2 A shows the schematic diagram of the embodiment of the Micropump of the equipment for distributing fluid that can be used for Fig. 2;
Fig. 3 A and Fig. 3 B is the schematic diagram of the details of the connection system of the equipment illustrating Fig. 2;
Fig. 4 is the schematic diagram of the first actuator of the equipment for Fig. 2;
Fig. 5 is the schematic diagram of the first structure of the equipment of Fig. 2, has the first system of the joint of device for transmitting motion;
Fig. 6 A to Fig. 6 D is the schematic diagram of the step of the joint of the equipment in first structure of Fig. 5 and operation;
Fig. 7 A and Fig. 7 B is the schematic diagram of the amount related in the operation of the actuator of Fig. 4;
Fig. 8 is the schematic diagram of the second structure of the equipment of the Fig. 2 with the second mating system;
Fig. 9 A to Fig. 9 D is the schematic diagram of the step of the joint of the equipment of Fig. 2 and operation;
Figure 10 is the schematic diagram of the deformation details of the equipment of Fig. 2, for using the second actuator and the 3rd mating system distribution fluid;
Figure 11 A to Figure 11 C and Figure 12 A to Figure 12 C is the schematic diagram of the 3rd mating system of Figure 10;
Figure 13 shows the equipment of the Figure 10 using the another pattern engaged;
Figure 14 shows the equipment using the Figure 10 for the equipment reducing motion;And
Figure 15 shows the schematic diagram of the alternative embodiment of the Micropump of the equipment for distributing fluid that can be used for Fig. 1.
Detailed description of the invention
In the following description, it is provided that various details are better understood when the embodiment provided by example.Embodiment can be implemented with or without detail, or utilizes additive method, parts, material etc. to implement.In other cases, known structure, material or operation are not shown or described so that the various aspects of embodiment are not blurred." embodiment " or " embodiment " mentioned in description refers to that the detail, structure or the characteristic that combine the description of this embodiment include at least one embodiment.Therefore, each point in the description occur such as " in an embodiment " or " in one embodiment " statement is not necessary to represent one and identical embodiment.Furthermore, it is possible to combine specific feature, structure or characteristic the most in any convenient manner.
Reference provided herein is only used for the convenience of reader rather than limits scope or the implication of embodiment.
Figure 2 illustrates above-mentioned solution 50, the most replaceable portion 60 includes container 61 and MEMS micropump 62.
On the contrary, fixed part 70 includes electronic module 71, and it includes memorizer 72 and the communication interface 73 operated at radio frequency, actuator 75 (especially piezo-activator), pressure transducer 76 and is used for the rechargeable battery 77 automatically powered for actuator 75.
Replaceable portion 60 is connected to fixed part 70 by being connected to fluidly connect by its outlet conduit 64, wherein fluidly connects and conveys the fluid to distribute pin 74 (that is, fluid distribution pipe 51).Additionally, be preferably made up of steel for transmitting the component 52 (especially sheet metal or band) of motion, piezo-activator 75 is connected to Micropump 62 by it.Fixed part also includes audition and visual alarm and temperature sensor (the most not shown).Fluid distribution pipe 51 is arranged in fixed part 70, and the pipeline that replaceable portion 60 self is set to via having outlet valve 64 fluidly connects with fixed part 70, outlet valve 64 is given to the outside (showing form referring for example to Fig. 3 A and Fig. 3 B) in replaceable portion 60 and derives from Micropump 62.
Pressure transducer 76 is arranged in fixed part 70 to measure the pressure in fluid distribution pipe 51, is the downstream towards distribution pin 74 as far as possible.This not only avoids the demand in the substrate for being connected to Micropump 62, but also it is capable of the structure declining the electronic module 31 performing fluid control of the pressure for measuring according to pressure transducer 76, the wherein downstream of the pressure transducer 76 connection between fixed part 70 and replaceable portion 60, particularly preferably in the downstream of the pipeline with outlet valve 64, as it has been described above, the attachment point of the neighbouring fluid line 51 with pin 74.
Any leakage controlling to allow to check any point (including the hydraulic connecting between replaceable portion 60 and the fixed part 70) place between the container 61 of fluid and outlet by measuring the decline of pressure of flowing that the Stress control of absolute pressure transducer 76 on the stationary part 70 performs again is installed before being close in fluid distribution pipe 51 (transmitting the fluid from Micropump 62) via use.
In substrate, the elimination of circuit allows to entrance (the pipeline 61a of fluid, it is additionally provided with inlet valve 61b) and outlet (being provided with the pipeline of outlet valve 64) be positioned on two opposite faces of pump 62, it is specially substrate side and barrier film side, eliminates and arrange in its surface and the passage that utilizes enclosing cover to seal or embedment arrange the demand of layer interior (the passage 22g of Figure 1A) of pump itself.
This connection in Fig. 2 A is demonstrated by the possible embodiment of Micropump 62.
Such as the pump 22 of Figure 1A, aforementioned Micropump 62 includes the pump chamber 62a being made up of three different silicon layers, two of which extreme layer composition bottom 62e and top layer 62f, identifies room floor 62i between which, dig out pump chamber 62a in the floor 62i of room.The inlet tube 61a of inlet valve 61b with correspondence is disposed through the bottom 62e and basal layer 62d of Micropump 62, and is arranged on the top layer 62f being used as lid from the outlet conduit 63 of room 62a.This pipeline is usual and pipeline 64 fluid is continuous and can have outlet valve 63b, outlet valve 63b manufactures in top layer 62f or can share this valve with pipe 64.Therefore, there is no need to as the situation of Figure 1A, in cap rock, arrange passage then sealed.It should be noted that the Micropump 62 of Fig. 2 A has the actuator 52 that the substrate 62d by inlet duct 61a carries out operating, and outlet conduit 63 is positioned on opposite side.Thus, then pass through the further pipe section transmission fluid in face towards replaceable portion 60.At Fig. 2 and hereinafter, Micropump 62 be schematically indicated as on the contrary with thin plate or with 52 apply on the side that point is identical, there is the outlet for fluid.
In fig. 15 it is shown that include the Micropump 262 of the pump chamber 262a being made up of three different silicon layers, two of which extreme layer composition bottom 262e and top side 262f, identify room floor 262i between which, in the floor 262i of room, dig out pump chamber 262a.
The inlet tube 61a with corresponding inlet valve 61b is disposed through the top layer 262f of Micropump 262, and is arranged on top layer 262f and substrate 262d from the outlet conduit 263 of room 262a.This pipeline is generally and pipeline 64 fluid is continuous, and can have the outlet valve 263b manufactured in bottom 262e or can share this valve with pipeline 64.Additionally, in this embodiment, passage is set in cap rock thus without the situation such as Figure 1A and is sealed.
The simplification of the framework of foregoing pump enables to pump and the material in addition to silicon can also be utilized to obtain, such as moulding of plastics materials or coupled to the plastic resin of metal, pottery or substrate of glass, precision according only to pump selects material, which reflects the tolerance limit of the manufacturing process of pump.
In addition to utilizing the abatement technique being widely used in MEMS technology to be manufactured by silicon layer, entrance and exit valve and pump members can utilize plastics molding to obtain, or by including that sheet metal obtains at plastic body.
The pipeline of the outlet valve 64 with the Micropump 62 being arranged in replaceable portion 60 is connected to the hydraulic circuit of fixed part 70 via the needle system 78 (the sealing barrier film 65 in replaceable portion 60) installed on the stationary part 70, i.e. fluid distribution pipe 51, as shown in Figure 3 A and Figure 3 B, the structure after replaceable portion 60 and fixed part 70 isolating construction before coupling and coupling is respectively illustrated.Pin 78 for connecting is formed, to prevent in the obturation during barrier film 65.Barrier film 65 is positioned in the front portion of tapered protrusion, and needle system 78 includes the base 78a of correspondingly-shaped, and it accommodates tapered protrusion 65a in coupled structure.The material of barrier film 65 is based on silicon, thus compatible with the fluid biological distributed by pump 62.
Actuator 75 is piezo-electric type, and applies displacement S substantially along its main shaft on band 52 as shown in Figure 2, and wherein main shaft is consistent with the axle of the component being perpendicular to Micropump 62.As it was previously stated, actuator 75 is mounted on the stationary part 70.
In one embodiment, as shown in Figure 4, Figure 5 and Figure 6, above-mentioned actuator 75 can be cantilever style.As it is known, piezoelectric cantilever actuator includes base portion 75e, arm or crossbeam 75a and end 75b.Piezoelectric element between base portion and arm makes arm 75a vibrate about resting position on the V of direction.As in figure 2 it is shown, be perpendicular to this mode of the vibration (referring further to Fig. 7 B) that displacement S is in resting position and performs to cut with displacement S-phase with arm 75a, cantilever actuator device 75 is arranged in fixed part 70, i.e. direction V is parallel to displacement S.In various embodiments, actuator 75 can substitute for for lienar for, the most as shown in Figure 10.
As it has been described above, MEMS micropump 62 is volume type (volumetric type), wherein move the volume that element changes the room of described Micropump;Specifically, it is membrane pump as shown in Figure 5.Micropump 62 includes that pumping chamber 62a, one wall are represented by silicon diaphragm 62b.The plane of barrier film 62b is perpendicular to displacement S, and the barrier film 62b of pump 62 is activated (such as by glued and welding) by metal tape 52 associated there.In Figure 5, this connects through glued 62c and obtains.
Additionally, figure 5 illustrates the component for transmitting motion, it is that band connects 52 as previously mentioned.The type of actuator 75 is depended on the connection between 52 and actuator 75.Figure 5 illustrates the connection with 52 Yu cantilever actuator device 75, it obtains via the laterally coupled system 79 of the summation fixed (specifically, the coupling of fixed part adds the length carried plus moving part), come from the fixing tolerance limit carried on Micropump that can eliminate the piezo-activator 75 come from fixed part 70.
Therefore, it should be noted that, how equipment 50 shows the band 52 (that is, via glued other modes of 62c or above-mentioned) being associated with the fixed form with Micropump 62, and is inserted in the device of such as engagement device 79 (for the joint of actuator 75).In other words, replaceable portion 60 carrying belt 52, it was bonded on fixed part 60 in the moment coupleding to actuator 75.
By including that the press element that the spring of spring 79a and propeller 79b operates ensures above-mentioned laterally coupled system 79, this press element is in the direction of the longitudinal axis of arm 75a and is perpendicular to operate with on the axle of 52 and the direction of displacement S, and acts on on the end face of 52.Press element 79 and there is low-friction coefficient with the coupling between the upside of 52;Such as, propeller 79b is made up of politef, and carries 52 to be made up of steel so that the value of coefficient of friction is 0.005.Propeller 79b by with 52 by the mobile terminal 75b pressing to piezo-activator 75, mobile terminal 75b is preferably coated with copper or plastic material or is provided with the terminal being made up of plastic material on it, and this coupling between the bottom side with 52 and the mobile terminal 75b of piezo-activator is contrary has great friction coefficient.By this way, the motion of the end 75b of piezo-activator 75 is transferred to carry 52, and it slides on the press element 79 of spring operation.
By example, spring 79a can utilize the metal wire of 0.5mm to make, and has the overall diameter of 5mm and the length of 15mm.Coefficient of friction between steel and copper is 1.0.Press element 79 is such as applied more than the power of 2N, and actuator 75 applies the maximum, force of 2N on the direction of displacement S.From the pressure for example, 100kPa of the fluid that Micropump 62 flows out.
Fig. 6 shows that fixed part 70 and replaceable portion 60 are relative to the coupling of the component (that is, with 52) for transmitting motion and the step of operation.
Between end 75b and propeller 79b, the step of the band 52 being glued to barrier film 62b is inserted when Fig. 6 A shows the beginning of the coupling between two parts 60 and 70.Fig. 6 B showing, press element 79 applies to be pressed into the step of the power of the end 75b of actuator 75 via the spring 79a operated by leverage (not shown) (such as can be the most close by user outside fixed part 70) in the top side with 52.Fig. 6 C shows pumping step, wherein the arm of actuator 75 shows the movement (the most linearized) thrust towards barrier film 62b towards replaceable portion 60 on the direction of the displacement S oriented from fixed part 70, it promotes band 52 in the same direction, and press element 79 slides in the opposite direction.On the contrary, Fig. 6 D shows drawing step, wherein the arm 75a of actuator 75 shows the drag motion about barrier film 62b on the direction of the displacement S oriented towards fixed part 70 from replaceable portion 60, pulls band 52 in the same direction, and press element 79 slides in the opposite direction.
Fig. 7 A and Fig. 7 B shows the detailed side view coupleding to the actuator 75 with 52.Drift L of arm 75a must be considerably larger than the absolute displacement of the end 75a of actuator such that it is able to the displacement of the vertical axis moved along actuator is minimized, is therefore prevented from the reduction of the power contacted with band.Such as, displacement S is included between 20 and 50 μm, and drift L is included between 5000 and 10000 μm.
With reference to Fig. 7 B, show in detail the displacement that the end 75a, H occurred in Fig. 7 A is perpendicular to the direction of motion S, and T is the thickness of arm 75a static on the direction be parallel to the direction of motion.Therefore,
H=Tarctan (S/L) (arctan i.e. arc tangent)
Thus, it is assumed that thickness T and the value of displacement S, length L must increase so that vertical displacement H minimize and ensure during motion with 52 contact.
Fig. 8 shows cantilever actuator device 75 and the various embodiments with the joint between 52, and it uses the system 89 for engaging the permanent magnet 89b supported by spring system 89a (also being controlled by leverage).Once inserting the metal tape 52 can being made up of magnetic or nonmagnetic substance, magnet 89b just shifts near band 52 by acting on leverage, itself will be pressed into the end 89b (it is made up, such as nickel) of actuator 75 of ferromagnetic material with 52.The separation with 52 is obtained by acting on leverage.Can easily replace magnet/leverage assembly.
Fig. 9 shows in detail coupling and the operating procedure of mode similar shown in Fig. 6.As it has been described above, in this case, due to magnetic couplings, system 89 is not slided on the rightabout relative to end 79b, but spring 79a bends and tilts, and follows the displacement with 52.
The following provide some reference values for magnet mating system 89.
Permanent magnet 79b such as can be made up of Nd-Fe-B (Neo-Delta-Magnet type), and associated there is energy product
The density of magnetic flux is multiplied by the power=B x H=278Kj/m in magnetic field3
Utilizing the magnet 79b of a size of 5x 2.5x 2m, by the power of spring 79a transmission 4.5N, and ENERGY E is
E=278x (5x 2.5x 2) x 10E-9kJ=6.95x 10E-6kJ=6.95mJ
It can be seen that the value of ENERGY E is the lowest.
Maximum, force on the direction of displacement S is 2.7N.
Terminating (finish) additionally, magnet 79b has towards the nickel with 52, nickel-steel coefficient is 0.6.
Magnetic field owing to being produced by permanent magnet can affect the behavior of electricity equipment, it is preferable that fixed part 70 includes that steel shields, and replaceable portion 60 does not comprise any sensing unit.
Figure 10 shows linear actuators 175, it can also be piezo-electric type, and includes motor section 175e along axle S displacement linearly, at the direction linear translation of displacement S the axle 175a of be associated with the end not being associated with barrier film 62b with 52 (especially coupling 175b via cam).
Figure 11 shows in detail the linear actuators 175 obtained via cam coupling 175b and the connection with 52.Being inserted in the space between two jaw shape part 175d shaped with 52, and can slide along the vertical axis parallel with displacement S, inner cam contoured shaft 175c is applied to it.Figure 11 A shows not have and couples 175b (being perpendicular to the plane in the direction of displacement S) with the cam in the front view of 52, Figure 11 B shows the cam coupling 175b that band is inserted between jaw shape part 175d, and Figure 11 C shows the clamping with 52: by acting on lever, main shaft 175c rotates and moves two jaw shape part 175d, thus blocks thin plate or band 52.Once main shaft rotates to home position, and spring can make jaw shape part 175d open and discharge thin plate.Figure 12 shows the structure identical with Figure 11 in cross-section.
Additionally, in the case of linear actuators, it is possible to use optional connection system 189, it uses the permanent magnet 189b that the spring 189a moved freely along axle supports, to compensate the reciprocating motion with 52.Mating system 189 is shown in fig. 13 on the end of axle 175a and is inserted in supporter 185, and corresponds essentially to the system 89 being previously shown.
Figure 14 show and operates the linear actuators 175 being associated for the cantilevered mechanism 190 of rocking bar, to obtain the reduction scope with the 52 displacement S started from the displacement S ' of linear actuators 175, thus increasing power.Cantilevered mechanism 190 includes vertical wall 190b and horizontal wall 190a (it is rotatably associated with upright arm 190b) via pin 190c.Axle 175a is similarly connected to the upright arm 190d of cantilever 190 via pin 190b.Substantially along identical trunnion axis, band 52 is fixed on horizontal arm 190a, thus cantilever 190 provides the transmission of the displacement range reducing linear actuators 175.Cantilever mechanism 190, with 52 couple and be similar to cantilever actuator device 75, uses press element 79 and similar coefficient of friction.In this way it is possible to use the linear piezoelectric actuator with low force and reduced size.The connection with pump can be carried out via the mechanically or magnetically sexual system having been directed towards the operation of linear actuators 175 and illustrate.
Mechanical alignment between fixed part 70 and replaceable portion 60 is ensured by the cone pin of casting in the case of replaceable portion 60, and it couples with the corresponding aperture in fixed part 70.
The metal hook of casting in the body of fixed part 70 is utilized to obtain the joint between two parts 60 and 70.These hooks coupled to the corresponding eyelet in replaceable portion 60.Preferably, to need this mode applying the replaceable portion 60 of pulling force removal to configure hook and eyelet, this causes the fault of eyelet.By this way, it is therefore prevented that reusing of replaceable portion once had been installed.
The battery 77 being arranged on fixed part is AA type.
Therefore, the advantage of described solution can from the description above in clearly obtain.
Described equipment and corresponding method can simplify the manufacture of MEMS micropump, eliminate the integrated pressure sensor transferring on fixed part.This element that can eliminate such as bond pad and internal connection, it is thus eliminated that the passage exposed, up to the present, the entrance and exit for fluid can be located at the opposite face of pump.Fluid can be drawn on side by MEMS micropump, and pumps from opposite side, therefore simplifies the manufacture of pump.
Additionally, described equipment and method can simplify the replaceable portion of equipment, eliminate actuator and internal electrical connection (wire bonding) and external connection pads, producing and becoming present aspect to have obvious advantage.The MEMS structure of Micropump is directly anchored in structure.
In addition, it is contemplated that eliminate spring contact, so simplifying fixing control part.
In addition, it is contemplated that pressure transducer edge on fixed part fluidly connects movement, so described equipment can use standard MEMS to be used for measuring pressure.
Certainly, without departing substantially from principle of the present utility model, relative to only by described by example, details and embodiment even can significantly change, and are defined by the following claims protection domain.
As the Micropump being made up of silicon an alternative it is possible to install the Micropump that is made of plastics, even if the latter generally demonstrates relatively low performance.

Claims (10)

1. for distributing an equipment for the wearable of fluid, including: fixed part (30;70), described fixed part can be dressed by object;And replaceable portion (20;60), described replaceable portion can be via fluidly connecting (12;51) with described fixed part (30;70) it is associated,
Described replaceable portion (20;60) include for accommodating the container (21 of allocated fluid;61) and Micropump (22;62), described Micropump (22;62) MEMS-type it is specially and for fluidly connecting (12 by described;51) described fluid is sent to described fixed part (30;70), described fixed part (30;70) electric control module (31 is included;71), described electric control module is arranged to via pressure sensor apparatus (23;76) described Micropump (22 is controlled;62) operation, described equipment (10;50) actuator (25 is included;75;175), described actuator is arranged to automatically operate described Micropump (22;62),
Described equipment is characterised by:
Described pressure sensor apparatus (76) be disposed in described in fluidly connect in (51) described fixed part (70) in, concrete neighbouring described in fluidly connect (51) with for distributing the terminal exit portion that the pin (74) of described fluid is associated.
Equipment the most according to claim 1, it is characterised in that described fixed part (70) includes described actuator (75;175), and the most described equipment (50) includes the component for transmitting motion (52), and described motion is by the described actuator (75 in described fixed part (70);175) the described Micropump (62) being connected in described replaceable portion (60), is specially connected to the mobile element (62b) of the volume of room (62a) for changing described Micropump (62).
Equipment the most according to claim 2, it is characterised in that described conveying member (52) is the form of thin plate or band, is specifically formed from steel.
Equipment the most according to claim 3, it is characterised in that described thin plate (52) is associated with described Micropump (62) in a position-stable manner, and be inserted into for engaging described actuator (75;175) device (79;89;189;190) in.
5. according to the equipment according to any one of claim 1-4, it is characterised in that described actuator (75) is cantilever actuator device.
6. according to the equipment according to any one of claim 1-4, it is characterised in that described actuator (175) is linear actuators.
Equipment the most according to claim 4, it is characterized in that the described low friction press element including being pushed to by spring (79a) surface of described thin plate (52) for engaging the device of described actuator, another surface of described thin plate (52) is positioned on described actuator (75).
Equipment the most according to claim 4, it is characterized in that the described permanent magnet (89b) including being pushed to by spring (89a) surface of described thin plate (52) for engaging the device of described actuator, another surface of described thin plate (52) is positioned on described actuator (75).
9. according to the equipment according to any one of claim 1-4, it is characterized in that being arranged on the outlet conduit (63 of the described Micropump (62) on described replaceable portion (60), 64) it is positioned on wall (62), the wall (62f) that described wall (62) fluidly connects (61a) with location is relative, fluid is transmitted to described Micropump (62) by described outlet conduit (63,64) from described container (61).
10. according to the equipment according to any one of claim 1-4, it is characterized in that the outlet conduit (64) being arranged on the described Micropump (62) on described replaceable portion (60) is connected to the hydraulic circuit (51) of described fixed part (70) via the needle system (78) being arranged on described fixed part (70), described needle system (78) penetrates the fluid-tight barrier film (65) on described replaceable portion (60).
CN201521108848.2U 2014-12-29 2015-12-28 A equipment for distributing wearable type of fluidic Withdrawn - After Issue CN205592112U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO2014A001114 2014-12-29
ITTO20141114 2014-12-29

Publications (1)

Publication Number Publication Date
CN205592112U true CN205592112U (en) 2016-09-21

Family

ID=52577906

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201511001589.8A Active CN105736328B (en) 2014-12-29 2015-12-28 For distributing the equipment and corresponding distribution method of the wearable of fluid
CN201521108848.2U Withdrawn - After Issue CN205592112U (en) 2014-12-29 2015-12-28 A equipment for distributing wearable type of fluidic

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201511001589.8A Active CN105736328B (en) 2014-12-29 2015-12-28 For distributing the equipment and corresponding distribution method of the wearable of fluid

Country Status (2)

Country Link
CN (2) CN105736328B (en)
IT (1) ITUB20151866A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105736328A (en) * 2014-12-29 2016-07-06 意法半导体股份有限公司 Device of a wearable type for dispensing a fluid, and corresponding dispensing method
US10639661B2 (en) 2014-12-29 2020-05-05 Stmicroelectronics S.R.L. Device of a wearable type for dispensing a fluid, and corresponding dispensing method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112022012140A2 (en) * 2019-12-19 2022-08-30 Janssen Biotech Inc PUMPS WITH LIQUID DRUG ACCESSIBILITY INDEPENDENT OF ORIENTATION
CN114522298B (en) * 2022-01-07 2024-03-15 王奇剑 Micro-injection pump

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008232099A (en) * 2007-03-23 2008-10-02 Aisan Ind Co Ltd Fluid pump control device
DE102007017445C5 (en) * 2007-04-02 2015-08-27 Alfred Kärcher Gmbh & Co. Kg liquid pump
JP5249857B2 (en) * 2009-05-29 2013-07-31 株式会社神戸製鋼所 Control device and work machine equipped with the same
CN201431672Y (en) * 2009-05-31 2010-03-31 赵广祚 Micro pump with display device for information of patients and medicines
CN202250753U (en) * 2011-09-16 2012-05-30 湖北兆伟液压电控有限公司 Electronic control device of hydraulic lift oil pump of cab
ITUB20151866A1 (en) * 2014-12-29 2017-01-02 St Microelectronics Srl DEVICE TO EXPECT A FLUID OF A WEARABLE TYPE AND ITS PROCEDURE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105736328A (en) * 2014-12-29 2016-07-06 意法半导体股份有限公司 Device of a wearable type for dispensing a fluid, and corresponding dispensing method
US10639661B2 (en) 2014-12-29 2020-05-05 Stmicroelectronics S.R.L. Device of a wearable type for dispensing a fluid, and corresponding dispensing method

Also Published As

Publication number Publication date
CN105736328B (en) 2019-03-19
ITUB20151866A1 (en) 2017-01-02
CN105736328A (en) 2016-07-06

Similar Documents

Publication Publication Date Title
CN205592112U (en) A equipment for distributing wearable type of fluidic
US10639661B2 (en) Device of a wearable type for dispensing a fluid, and corresponding dispensing method
CN104271947B (en) Piston pump
JP5977429B2 (en) Piston pump and device for supplying and measuring medical fluid by piston pump
CN102971613B (en) Valve assembly for a differential pressure sensor with automatic zero point calibration and flushing
GB2053378A (en) Flow metering cassette and controller
CN1067460C (en) Pumping device
CN103874517B (en) Vacuum pump
AU7067800A (en) Uninterrupted flow pump apparatus and method
CN106662084B (en) Pump module formula system
JP7123968B2 (en) A positive displacement pump for medical fluids and a blood processing apparatus comprising a positive displacement pump for medical fluids and a method for controlling a positive displacement pump for medical fluids
EP2332596A1 (en) Infusion pump module
CN104582756B (en) For injecting the component of viscose liquid products
JP6185550B2 (en) Device for supplying and measuring fluids for medical purposes
AU2017208193A1 (en) Fluidic manifold
CN105716778A (en) PRESSURE MEASUREMENT DEVICE AND BRAKING SYSTEM COMPRISING same
CN103291590B (en) Double-diaphragm pump
CN214247660U (en) Plunger pump filling device and plunger pump provided with same
CN102269150A (en) Micro pump
CN103821702A (en) Diaphragm pump
CN102235279A (en) Primer bulb
CN114378558B (en) Flange plate assembly production line and flange plate leakage detection method thereof
CN216102895U (en) Filling system
CN218862803U (en) Assembled electronic water pump controller
CN221102364U (en) Liquid sucking and injecting standing device for standing

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20160921

Effective date of abandoning: 20190319

AV01 Patent right actively abandoned

Granted publication date: 20160921

Effective date of abandoning: 20190319

AV01 Patent right actively abandoned
AV01 Patent right actively abandoned