CN109200398A - Equipment for removing medical sharp device from holder - Google Patents
Equipment for removing medical sharp device from holder Download PDFInfo
- Publication number
- CN109200398A CN109200398A CN201810733443.XA CN201810733443A CN109200398A CN 109200398 A CN109200398 A CN 109200398A CN 201810733443 A CN201810733443 A CN 201810733443A CN 109200398 A CN109200398 A CN 109200398A
- Authority
- CN
- China
- Prior art keywords
- control circuit
- induction coil
- holder
- needle
- magnetic induction
- 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.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/3278—Apparatus for destroying used needles or syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
- A61B17/3211—Surgical scalpels, knives; Accessories therefor
- A61B17/3217—Devices for removing or collecting used scalpel blades
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B50/00—Containers, covers, furniture or holders specially adapted for surgical or diagnostic appliances or instruments, e.g. sterile covers
- A61B50/30—Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments
- A61B50/36—Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments for collecting or disposing of used articles
- A61B50/362—Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments for collecting or disposing of used articles for sharps
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
- H05B2206/02—Induction heating
Abstract
A kind of equipment for removing medical sharp device from holder, the induction heating for carrying out self-induction coil (108) is used to by separating releasing medical sharp instrument (144) with its holder (142) using higher-order of oscillation magnetic field, and eddy current and resistance heating are evoked in the higher-order of oscillation magnetic field in the sharp instrument.Heated metal sharp instrument makes adhesive or plastic molting that the sharp instrument is fixed to its holder.The use of induction heating is advantageous, because it does not need directly contacting between circuit and sharp instrument or its holder.It is described heating also can act with to the sharp instrument sterilizing and therefore separate the sharp instrument with its holder at it makes its risk smaller simultaneously.The induction coil can have stairstepping shape or coniform shape so that RF energy to be concentrated on to the interface between the metal sharp instrument and its holder.
Description
This application claims in " Medical Sharp Removal and submitting and entitled on July 7th, 2017
The U.S. Provisional Patent Application the 62/529,926th of Storage Device (medical sharp device remove and storage device) " and in
On July 7th, 2017 " Induction Heating Circuit for Medical Sharps submitting and entitled
The U.S. Provisional Patent Application the 62/th of Removal Device (inductive heating circuit of device is removed for medical sharp device) "
530, No. 001 priority, the full content of described two applications are expressly incorporated into herein.
Technical field
This patent disclosure relates generally to a kind of electric control circuits for being used together with such device: the device is for making
Medical sharp device is removed from holder with induction heating.It particularly, but is not the limitation present invention, the present invention relates to one kind to be used for
The electric control circuit being used together with such device: the device is inserted for being heated metal pen needle by using induction heating
Manage and make by it is described be intubated be fixed to fibertip pen needle needle stand adhesive or plastic molting by metal pen pin intubation from fibertip pen
Needle needle stand removes, and is related to a kind of load coil for using in such a circuit.The control circuit and
Device may further be used to remove Luer's syringe needle from plastics needle stand or plastic syringe barrel, by metal lancet from plastics
Lancet holder removes, or removes metal implanting needle from plastics needle stand in conduit tube component.
Background technique
Metal sharp instrument (such as injection pen needle, syringe needle, hypodermic needle, lancet or conduit implanting needle)
After use, it is desirable that sharp instrument, which is removed and is stored in safe container, due to some.For example, medical sharp device
Usually dull after a single use, so subsequent use may make patient's discomfort.Additionally, to the multiple of medical sharp device
Using the intensity that it is also possible to reduce sharp instrument, this may cause potential rupture.Further, reusing for medical sharp device makes to close
Increase in the hygienic issues and health risk of patient.Moreover, the medical sharp device of exposure may be to patient, care-giver and useless
Object managing and serving system causes health risk.
For store used needle sharp instrument container (being in the prior art known) include inner cartridge component and
Outer housing member.Box and shell respectively have hole, and the hole is dimensioned to reception hypodermic needle.Box and shell
It is hingedly attached to each other, so that and the hole of shell is Chong Die and needle can be inserted through in the hole of the box in the open position
Described two holes are to protrude out in the box.After needle has been inserted into hole, make box and shell (example relative to each other
Such as with shears-like movement) movement, so that needle is cut up.After being cut up, needle is fallen into box, for carry out storage and
Subsequent processing.Traditionally, sharp instrument container is big red box, and medical sharp device be inserted as it is relatively easy, but it is medical
The removal therefrom of sharp instrument is difficult apparently.
U.S. Patent No. 6,545,242 of Butler disclose a kind of device, will after the insertion of a part of needle
At least part of needle is heated approximately at 1750 DEG C, and then cuts needle, and a part is stayed in needle holder or needle stand.
Similarly, the U.S. Patent No. of Piva 5,545,869 discloses a kind of device, make a part fusing of blade or needle and
The nubbin of blade or needle is cut off, a part of blade or needle is stayed in needle/blade holder or needle stand.Additionally,
U.S. Patent No. 4,867,309 of Germain disclose a kind of device, kept by shank needle and its holder or
Person's needle stand so that user can twist off needle stand from syringe, or is installed on syringe in needle stand by frictional fit
In the case where needle stand is pulled off.
However, a part of needle is held in needle holder for each of these devices.Therefore, needle stick injury
A possibility that may be there are still.Additionally, needle holder must be by as MEDICAL WASTE TREATMENT, and cannot be re-used.
Therefore, it is required that improved medical needle needle fully removed, which removes device,.Storage to the needle removed is also to need
It wants.
Summary of the invention
According to an aspect of the present invention, induction heating is used to by making releasing medical sharp instrument using higher-order of oscillation magnetic field
It is separated with its holder, eddy current and resistance heating are evoked in the higher-order of oscillation magnetic field in the sharp instrument.Induction heating
Use be advantageous it is and described because it does not need directly contacting between circuit and sharp instrument or the holder of sharp instrument
Heating also can act to sterilize to the sharp instrument and therefore make sharp instrument simultaneously separating the sharp instrument with its holder
Risk it is smaller.
The separation of sharp instrument and the holder of the sharp instrument, such as whole or portion by making sharp instrument can be realized in many ways
Divide fusing, by being locally heated sharp instrument so that it can more easily be cut off or be broken, by using heated sharp instrument
Come make for sharp instrument to be attached to the sharp instrument holder adhesive softening or fusing, or made by using heated sharp instrument
The plastic material of the adjoining of holder itself softens or fusing.These methods can individually or with it is in combination with one another, and
It can be also applied in combination with mechanical separation method.
A challenge for separating releasing medical sharp instrument with its holder is, it is difficult to will be enough
Radio frequency (RF) energy concentrates in small metallic object (such as pin intubation), needed for the generation in the considerably short period
Softening or fusion temperature.Long conduction time is worthless, not only due to they are inconvenient for user, and
And because they may cause the overheat of induction coil.
Another challenge is, certain form of sharp although induction heating can most effectively be run at short distance
Device holder (such as needle needle stand) is physically biggish relative to metal sharp instrument itself, and physically prevents induction
Coil is oriented to sufficiently close in sharp instrument, for carrying out effective energy transmission.
Frequency of oscillation and/or amplitude can be made to increase, at a given time period by more transmission of radio-frequency energy to gold
Belong to sharp instrument, but the use of high frequency and/or oscillation may cause undesirable radio-frequency radiation and in certain situations
Under it may also be desirable to regulatory approval.
According to aspects of the present invention, these challenges are coped in many ways.In an aspect, using the sense of special shape
Coil is answered maximize the efficiency to the transmission of radio-frequency energy of metal sharp instrument.The coil is with by with different diameters
Stairstepping shape defined by two parts being axially spaced from, and metal pen pin intubation is concentrated on to by RF energy
It is useful in (it is installed in the needle stand with similar stairstepping shape).
Another aspect of the present invention is in the industrial frequency band, scientific frequency band and medicine (ISM) frequency band of exempting from license
The use of frequency of oscillation, the frequency of oscillation allow effective energy transmission without introducing control requirement or needle being required to remove
The design of device prevents all undesirable radio-frequency radiations at these frequencies.
An additional aspect of the present invention is using radio frequency " kelvin effect ", be alternating current (AC) (in this example by
Eddy current caused by induction coil) concentrate on trend near the surface of conductor (electric current flows wherein).This effect exists
Become more significant under higher frequency.
It is protected since the medical sharp device of many types is designed to make their outer surface to be mounted or be bound to plastics
In gripping member, kelvin effect by RF energy be effectively channeled to metal sharp instrument, need to heat so as to by sharp instrument from its guarantor
The specific part (also that is, metal/plastic interface) of gripping member release is advantageous.
Detailed description of the invention
In conjunction with attached drawing, according to the following specifically describes, will be more readily understood the other aspect of the embodiment of the present invention with
And advantage, in which:
Fig. 1 and 2 is the perspective view and cross-sectional view removed according to the metal sharp instrument of the embodiment of the present invention with storage device；
Fig. 3 and 4 is the perspective view and cross-sectional view for showing the operation of exemplary means of Fig. 1 and 2；
Figures 5 and 6 (including attached drawing 6A, 6B) are the first implementation of the electric control circuit of the exemplary means for Fig. 1 and 2
The block diagram and schematic diagram of example；
Fig. 7 and 8 (including attached drawing 8A, 8B) is the second implementation of the electric control circuit of the exemplary means for Fig. 1 and 2
The block diagram and schematic diagram of example；
Fig. 9 is the flow chart for showing the operation of electric control circuit of Fig. 7 and 8 (including attached drawing 8A, 8B)；And
Figure 10 A and 10B show two kinds of possible shapes of the magnetic induction coil used in the exemplary means of Fig. 1 and 2
Shape.
In these figures, identical component and component are indicated using identical Ref. No..
Specific embodiment
Now by referring particularly to embodiment that is of the invention, being shown in the accompanying drawings, wherein identical in these figures
Ref. No. refers to identical element.Embodiment described herein is not illustrated, but not by reference to attached drawing
The limitation present invention.
Those skilled in the art in the invention are it should be understood that the present invention is not limited to component in its application aspect
, structure detail and arrangement details illustrated in the following description or shown in the accompanying drawings.Implementation herein
Example can have other embodiments, and can be practiced or carried out in various ways.However, it should be understood that herein
Used wording and term are for purposes of description and to should not be considered as limiting.Herein to " packet
Containing ", use of " comprising " or " having " and its deformation mean comprising listed thereafter element and its equivalent form with
And other element.Unless otherwise defined, otherwise term " connection ", " connection " and " installation " and its deformation quilt herein
It is widely used and includes direct and indirect connection, connection and installation.In addition, term " connection " and " connection
Connect " and its deformation be not limited to physics or mechanical connection or connection.Further, for example, " upward ", " downward ", " bottom ",
And the term at " top " is relativity, and is used to assist in and illustrates, but and it is unrestricted.
Fig. 1 is the perspective view removed according to the illustrative medical sharp device of the embodiment of the present invention with storage device 100, and
And Fig. 2 is the cross-sectional view of device 100.It hereinafter summarizes and is the U.S. Provisional Patent Application submitted on July 7th, 2017
Mechanical realization and the operation of device 100, the U.S. Provisional Patent Application quilt are more specifically described in 62/529th, No. 926
It is incorporated herein by reference of text.
Exemplary means 100 are suitable for disposable with the usual type being used together with reusable syringe
Needle is used together, but can be also used together with other types of medical sharp device.As shown in the figure, device 100 includes main body
102 and heating unit 104.According to one embodiment, heating unit 104 include energy source 106 (such as battery 106 etc.),
Induction coil 108 and the controller 110 that energy source 106 and induction coil 108 can be electrically connected to.Controller may include
Printed circuit board, and can have the circuit board member of such as memory chip and microprocessor.Device 100 also includes: fixed
Ground is set to the receiving unit 114 in main body 102；Collet 122；Sharp instrument receives container or room 124；First and second biasings are single
Member 130 and 132；Door component 134 and sliding part or user interface 136.In one embodiment, sharp instrument receives container 124
It can be removed from main body 102.
Fig. 3 and 4 shows the operation of medical sharp device removal and storage device 100.In Fig. 3, user will be connected to pen note
The needle 140 of emitter 138 is inserted into the receiving portion 116 of receiving unit 114.Needle 140 include plastics needle stand 142 and by
Medical sharp device made by metal (such as stainless steel) or pin intubation 144.The spline of needle engages the interior of the receiving portion 116
Portion's spline 120, to resist the rotation of a needle 140, so that syringe 138 can be screwed off from needle 140 and will by user
Syringe 138 removes, and needle 140 is stayed in the receiving portion 116 of receiving unit 114.
When needle 140 is inserted into receiving unit 114 by user, the receiving portion 116 of receiving unit 114 receives needle
Seat 142, and collet 122 receives needle 144.When needle 140 is inserted into receiving unit 114 by user, the collet of opening
122 receive needle 144.After needle 140 is inserted into receiving unit 114 by user, user is by making 134 phase of a component
102 forward slip of main body is closed door component 134.The door component 134 of closing helps a needle 140 being held in reception
In unit 114, and the closed position of a component 134 is detected so that controller 110 can make induction coil 108 be powered.For example,
The physics for being connected to controller 110 or optical sensor 182 may be present, in door component 134 relative to the predetermined of main body 102
Displacement after reach closed position when be triggered.Alternatively, door component 134 can have an electric contacting piece, complete circuit,
A part to controller 110 and induction coil 108.It is available to enable controller 110 that induction coil 108 to be made to be powered
Other methods are without departing from the scope of the present invention.In addition to these features, the lower surface of door component 134, which is provided with, is preferably in
The conductive liner 135 of metal foil or the form of item, the lining are connected to the reference potential of ground or controller.This provides shielding
Thus function reduces the undesirable radio-frequency radiation for carrying out self-induction coil when device is run.
After user closes door component 134, user makes sliding part or user interface 136 along first direction
(as in Fig. 4 by shown in arrow) slide downward.Although user interface 136 is shown as sliding part 136, this hair
It is bright those skilled in the art will appreciate that, using other user interfaces (such as release button) without departing from this hair
Bright range.
As shown in figs. 2 and 4, on the top for the lower flange that the second bias unit or spring 132 are set to collet 122 simultaneously
And first bias unit or spring 130 be set to below the flange.Before collet 122 is mobile, the first spring 130 is towards connecing
It receives unit 114 and biases collet 122.In the original state shown in Fig. 4, second spring 132 is inclined still far from 114 ground of receiving unit
Press collet 122.In the original state, the first spring 130 or second spring 132 do not bias collet 122.Neck belonging to of the invention
Domain the skilled person will understand that, can be to make by being suitably set the size of the first and second bias units 130 and 132
User provides desired force curve to operate the power that described device 100 is applied on sliding part 136.
User interface or sliding part 136 are attached to collet 122.In one embodiment, user interface or sliding part
136 are directly attached to collet 122.In another embodiment, another element (such as the second bias unit or spring 132)
It is set between user interface or sliding part 136 and collet 122, and the movement of sliding part 136 is converted to collet 122
It is mobile.
The mobile preset distance of sliding part 136 is set to cause collet 122 to clamp needle 144 and also start heating unit.According to one
A embodiment, device 100 includes the machinery or optical sensor 184 for being attached to controller 110, to determine sliding part or user
The scheduled mobile time occurred at interface 136 completes circuit and supplies high-frequency current to signal controller 110
It should be to induction coil 108.Alternatively, sliding part or user interface 136 can have electric contacting piece, complete from energy source
106 to induction coil 108 circuit, so that controller 110 is controlled energy, supply to induction coil 108.
Energy is generated into strong, oscillating magnetic field in the intermediate of induction coil 108 supplied to induction coil 108.Due to metal
Medical sharp device (also that is, stainless steel pin intubation 144) is present in coil 108, and oscillating magnetic field causes in releasing medical sharp instrument
Current vortex then causes the resistance heating to sharp instrument.The heating makes medical sharp device 144 and holder 142 (in this example
In, fibertip pen needle needle stand 142) connection adhesive and/or plastics softening and die down.Induction coil is seen best in Fig. 4
108 preferred construction, particularly include be axially spaced from the lower coil portion 162 of smaller diameter it is bigger straight
The construction of the upper coil portion 160 of diameter.The stairstepping coil shape is similar to the stairstepping distal side of typical needle construction, and
And the RF energy as caused by coil is enable to be applied to metal pin intubation 144 and plastics needle stand 142 as closely as possible
Between interface adhesive and/or plastic material.
Since collet 122 is pushed down on by the power that user be applied to sliding part 136, once induction heating makes needle 144
Connection between needle stand 142 fully softens and dies down to allow needle 144 mobile relative to needle stand 142, still holds needle
144 collet 122 just pulls downward on needle 144 and needle 144 is pulled away from needle stand 142.When collet 122 is in the column of receiving unit 114
When being travelled downwardly in the conical section of the inside of shape part 118, be applied to the sharp instrument receiving portion of collet radially inward
Power and therefore collet reduce the clamping of needle 144.In other words, the conical by its shape of conical section allows collet 122 at it along the
It is expanded when advancing in one direction (also that is, in the accompanying drawings downwards).The positioning of conical section is selected such that only complete in needle
Be pulled away from plastics needle stand 142 entirely allows the expansion of collet 122 to discharge needle 144 later.
According to one embodiment, quite suddenly realize that wherein induction heating fills the connection between needle 144 and needle stand 142
Divide ground softening and die down with the state for allowing needle 144 mobile relative to needle stand 142, and momentum is applied to needle by collet 122.One
The clamping of denier collet 122 fully reduces, and collet 122 just discharges needle 144, and the momentum of needle 144 carries the needle to sharp
Device receives in container 124.
Then, user discharges the downward power for being applied to sliding part 136, and the first spring 130 makes collet 122
And sliding part 136 is back to initial position shown in Fig. 2 and 4.Alternatively, user can make sliding part 136 (and due to
Collet couples therefore makes collet 122 with sliding part) it is back to initial position shown in Fig. 2 and 4.
According to one embodiment, energy is reached the time of predetermined amount by controller 110 supplied to induction coil 108.Alternatively,
Controller can based on sliding part 136 or collet 122 position (for example, via previously described sensor or electric contacting piece,
Or via different sensors) control to the energy supply of induction coil 108.
Once needle 144 is separated with needle stand 142, user can be opened door component 134 and by needle stand 142 from device
100 remove, and to be handled or be recycled, and needle 144 is safely arranged in sharp instrument and received in container or room 124.In needle
144 separated with needle stand 142 before be applied to needle 144 heating (although for very brief) may have to the sterilizing of needle 144 and
Therefore make its smaller effect of risk during any subsequent operation or processing.The opening of sharp instrument reception container 124
It may be provided with diaphragm of rubber class barrier or duckbill valve, pass through wedge shape when container 124 is attached to the main body 102 of device 100
Object or taperer are opened, and needle 144 is made to be able to enter container 124.When container 124 be removed to be handled when, the diaphragm or
Valve closes spring, so that any other isolated sharp instrument in needle 144 and container 124 is held in wherein and cannot
It drops out.
In the example of the exemplified explanation of Fig. 1-4, medical sharp device is metal pen pin intubation 144 and holder is plastics
Needle needle stand 142.But also device 100 can be used to separate other medical sharp devices and holder.In general, device 100 can be passed through
Accommodating has potentially dangerous metal sharp instrument component (its needs is separated and is contained with plastic holder to be handled)
Any medical device.For example, metal lancet, probe or trochar can be made to separate with its handle, metal needle can be made to insert
Pipe is separated with stake formula syringe or with the needle stand or holder for being mounted to syringe, and can make metal catheter implanting needle and
Its needle stand or holder separation.Door component 134 in notch 146 (being seen best in Fig. 1) accommodating lancet, probe or
Person's trochar handle, syringe or conduit import part, and device 100 is used to separate medical sharp device with its holder, and
And a component 134 is still allowed for close.Similarly, the shape of receiving unit 114 can be changed by receiving unit 114 and modeling
It is provided between material holder or handle (metal sharp instrument is attached to it) and is slidably matched and accommodates these different types of medical devices.
Main body 102, receiving unit 114, collet 122, door component 134, sliding part 136 and sharp instrument receive container 124 can
Be made of plastics, for example, polypropylene (PP), polyethylene (PE), polycarbonate (PC), acronitrile-butadiene-styrene (ABS) or
Person's polyether-ether-ketone (PEEK).Different components can be made of different plastics.Preferably, collet 122 is ceramic or by metal
(such as aluminium) is made.
The embodiment of the present invention (with induction coil) is especially useful in the case where as follows: in the situation
In multiple contact points for being directly entered on medical sharp device be difficult, therefore keep the realizability of conductive heater mechanism smaller.
The embodiment of the present invention provides the portable personal sharp instrument container of one kind and removes device, allows to contaminated
Sharp instrument securely receiving and handling, and the needle processing compliance of the user of needle can be improved.
The embodiment of the present invention can be run in the following manner: remove injection device (for example, needle or syringe are still
Be not limited to it) only metal sharp instrument part and metal sharp instrument part is stored in inside device while allowing user general
The non-sharp instrument component of plastics is abandoned as the ingredient of common rubbish or recoverable.The embodiment of the present invention can be by example
The adhesive pearl that medical sharp device is adhered to holder is nearby inductively such as generated into strong high-temperature area together with " pull-out (pull-
Out) " mechanism realizes the effect.
In an embodiment of the present invention, it can be realized and be heated by induction heating structure.Mechanism in this way, it is not necessary to make to add
Heat engine structure directly contact pin.However, it is also possible to realize heating in other ways, such as by directly contacting medical sharp device
Heating element, or by contact medical sharp device to complete circuit so that electric current is passed through medical sharp device.See, e.g., altogether
The U.S. Patent No. transferred the possession of together 8,829, No. 394, the 9th, 579, No. 469 and the 9th, 802, No. 006, the United States Patent (USP)
Full content be expressly incorporated into herein.
In certain embodiments of the present invention, device 100 has durable component and disposable component.Durable structure
Part utilizes power supply, such as battery (rechargeable or other).It can include into device by indicator, the indicator exists
Intubation keeps compartment to alert user when having reached certain capacity.Similar feature can be used to manage power requirement, than
Such as battery replacement recharges.Using disposable component (room or sharp instrument receiving portion) until by enough quantity
Needle be directed into the room, it can be disassembled and suitably handle after this.Processing appropriate may include various selections,
For example, disposable component can be posted to manufacturer's perhaps individual waste management entity or can be by disposable component
It abandons in medical waste container appropriate.Preferably, it can get the replacement to disposable component to continue durable structure
Part is removed for subsequent medical sharp device.
Fig. 5 is the block diagram of the first exemplary electrical control circuit of the device 100 for Fig. 1 and 2.Heating unit 104
It can be configured to power subsystem 112, it includes energy source 106 and DC chopper type boost converter circuits 113.According to one
A embodiment, boost converter circuit 113 and induction heating resonance circuit 115 are the part of controller 110.Implement at one
In example, energy source 106 includes one or more battery, such as two 3.7 volts of lithium ion battery being connected in series.Boosting
7.4 volts of DC output transform of the lithium ion battery that two are connected in series by converter circuit 113 is that 28 volts of DC is defeated
Out.Those skilled in the art in the invention will be appreciated that using other battery structures or other types of battery and
The scope of the present invention is not departed from.According to one embodiment, energy source 106 can be removed from main body 102, and be replaceable.
It, can be by one or both of sensor 182,184 for being initially mentioned or with it although being not shown in Figure 5
Its certain mode controls power subsystem 112 so that it only medical sharp device has been appropriately interposed in user and
Electric power is applied to induction heating resonance circuit 115 when having been started up collet 122.
Fig. 6 (including attached drawing 6A, 6B) is the specific schematic diagram of the electric control circuit of Fig. 5.Reference circuits 170 utilize
Zener diode U2 come generate control induced oscillation device (oscillating circuit) frequency low reference voltage.The Voltage Reference is by conduct
Input is provided to oscillator drive circuit 172, and the fine tuning electricity of exemplified explanation is combined using operational amplifier (op amp) U1
Device and capacitor are hindered to generate the frequency of oscillation of desired 27MHz.The output of operational amplifier U2 is applied as input
To driving (amplifier) circuit 174, driving (amplifier) circuit is using bipolar transistor Q1 and Q2 come by desired output
Power (substantially 60 watts) is provided to coupling transformer 176.Boost in voltage and impedance matching are provided to by coupling transformer 176
The magnetic induction heating coil 108 of needle removal device 100.Power supply 178 filters and mitigates the power supply from 28 volts of composition
The battery 106 of subsystem 112 and 28 volts of the DC output of boost converter circuit 113.
It should be pointed out that the frequency other than 27MHz can be used, have to driving circuit and induction coil geometry
The corresponding change of shape.For example, 43MHz is that another kind exempts from license frequency, it is suitable for being used in the present invention.In general,
It is preferred for exempting from the frequency in license ISM band, but it is necessary that this, which is not,.
Fig. 7 is the block diagram of the second exemplary electrical control circuit of the device for Fig. 1 and 2.In the circuit, it uses
Micro controller unit (MCU) 180 carrys out the function of control circuit, frequency of oscillation and each biography of detection comprising changing resonance circuit
The state of sensor and detector 182-188.Fig. 8 (including attached drawing 8A, 8B) is the specific schematic diagram of the present embodiment, wherein voltage
Reference circuit 170 is deleted and is replaced by exporting from the digital-to-analogue conversion (DAC) from MCU 180.Electricity on route 181
The frequency of oscillation of voltage level control magnetic induction coil 108 and therefore control are applied to the sharp instrument (holding for making it with it
Part separation) radio-frequency power amount.MCU from the sensor 182 of the position for detection door component 134, for detecting sliding part
Sensor 184, needle insertion detector 186 and the needle size detector 188 of 136 position receive input.In some embodiments
In sensor 186 and 188 can be combined into single sensor.The voltage regulator 190 for being attached to power subsystem 112 will be required
DC power supply voltage be provided to MCU 180.
Fig. 9 is the operation of device 100 in the control circuit based on MCU for being provided with Fig. 7 and 8 that is describing Fig. 1 and 2
Flow chart.When reviving at digital 200 instructions from dormant state, MCU is checked at digital 202 instructions through detection needle
The state for being inserted into detector 186 determines whether needle has been inserted into, the needle insertion detector 186 can take electronics (for example,
Induction or it is capacitive) sensor, mechanical pick-up device or optical sensor form.If needle has been inserted into, MCU
Then verify that whether the safety interlock 182 of component 134 has been actuated while at digital 204 instructions.In collet 122
After being locked on a pin intubation 144 at digital 206 instructions, MCU checks the size of intubation at digital 208 instructions
(specification), to determine that it is big or small.This operation, needle size detector 188 are carried out using needle size detector 188
The form of electronics (for example, incuding or capacitive) sensor, mechanical pick-up device or optical sensor can also be taken.Such as
Previously it has been mentioned that single sensor can be combined into sensor 186 and 188.If it is determined that needle set has small dimension, then MCU exists
The shorter period (for example, 2 seconds) is reached using higher booster converter frequency and voltage at digital 210 instructions, however, if
Determine that needle set has big specification, then MCU reaches at digital 212 instructions using lower booster converter frequency and voltage longer
Period (for example, 3 seconds).Since needle serves as resonant antenna, these parameters be corresponding needle size generate optimal resonance and
Inductively.In both cases, however, it is determined that current drain is excessive (can be via temperature sensor or by current drain
Directly measurement carries out the determination), MCU has the ability for ahead of time closing oscillation at digital 214,216 instructions.In scheduled work
Make after the period (on time), to terminate by MCU to the output of induction coil 108 at digital 218 instructions, in 220 instruction of number
Place removes intubation 144, discharges 122 mechanism of collet at digital 222 instructions, generates at digital 224 instructions audible
Or the power supply for completing signal and near control circuit that can be seen that close and processor at digital 226 instructions again into
Enter dormant state.
Figure 10 A is the specific view of induction coil 108, shows the upper coil portion 160 and axis of bigger diameter
To ground separately, the lower coil portion 162 of smaller diameter, the two provides stairstepping shape jointly in side view for coil
Shape.Although the coil shape be it is preferred, other loop geometries be it is possible.For example, showing circular cone in fig. 1 ob
Shape geometry, wherein induction coil 108 ' 230 in axial direction more gradually narrows from top 228 to bottom.
Although only several embodiments of the invention have been shown and described, the present invention is not limited to described
Embodiment.On the contrary, those skilled in the art in the invention, which will be appreciated that, can make a change these embodiments without de-
From principle and spirit of the invention.Any one of embodiment herein disclosed and/or element can be with phase groups each other
It closes to form each other embodiment not disclosed particularly, as long as they are not conflicting.Particularly it is worth noting that,
Those skilled in the art in the invention can be easily each exemplary to what is had been described above in many other modes
Each technical aspect of each element of embodiment is combined, and all these is considered as this hair within the scope of the invention
Bright range is limited by appended claims and their equivalent form.
Claims (18)
1. a kind of equipment for removing medical sharp device from holder comprising:
Magnetic induction coil；And
Control circuit for making the magnetic induction coil be powered；
It is characterized in that, the magnetic induction coil by two parts being axially spaced from different diameters with being limited
Fixed stairstepping shape or the coniform shape as defined by the diameter in axial direction gradually changed.
2. equipment according to claim 1, which is characterized in that the medical sharp device includes metal pen pin intubation and described
Holder includes fibertip pen needle needle stand.
3. equipment according to claim 1, which is characterized in that the control circuit is with substantially 27MHz's or substantially 43MHz
Frequency makes the magnetic induction coil be powered.
4. equipment according to claim 1, which is characterized in that the control circuit includes micro controller unit.
5. a kind of equipment for removing medical sharp device from holder comprising:
Magnetic induction coil；And
Control circuit for making the magnetic induction coil be powered；
It is characterized in that, the control circuit makes the magnetic induction coil be powered with the frequency of substantially 27MHz or substantially 43MHz.
6. equipment according to claim 5, which is characterized in that the medical sharp device includes metal pen pin intubation and described
Holder includes fibertip pen needle needle stand.
7. equipment according to claim 5, which is characterized in that the control circuit includes micro controller unit.
8. a kind of equipment for removing medical sharp device from holder comprising:
Magnetic induction coil；And
Control circuit for making the coil be powered；
It is characterized in that, the control circuit is to depend, at least partially, on the size of the medical sharp device or the voltage of specification
And/or frequency makes the magnetic induction coil be powered.
9. equipment according to claim 8, which is characterized in that the medical sharp device includes metal pen pin intubation and described
Holder includes fibertip pen needle needle stand.
10. equipment according to claim 8, which is characterized in that the control circuit includes micro controller unit.
11. a kind of equipment for removing medical sharp device from holder, which is characterized in that the equipment includes:
Magnetic induction coil；
Control circuit for making the magnetic induction coil be powered；
For surrounding the shell of the magnetic induction coil and the control circuit；
For being provided to the moveable door in the channel of the shell；And
For detect the moveable door opening state or closed state, be attached to the sensor of the control circuit.
12. equipment according to claim 11, which is characterized in that the medical sharp device includes metal pen pin intubation and institute
Stating holder includes fibertip pen needle needle stand.
13. equipment according to claim 11, which is characterized in that the control circuit is with substantially 27MHz or substantially 43MHz
Frequency so that the coil is powered.
14. equipment according to claim 11, which is characterized in that the control circuit includes micro controller unit.
15. a kind of equipment for removing medical sharp device from holder, which is characterized in that the equipment includes:
Magnetic induction coil；
Control circuit for making the magnetic induction coil be powered with rf frequency；
For surrounding the shell of the magnetic induction coil and the control circuit；
For being provided to the moveable door in the channel of the shell；And
Metal skirt on the moveable door, for reducing the radio-frequency radiation from the shell.
16. equipment according to claim 15, which is characterized in that the medical sharp device includes metal pen pin intubation and institute
Stating holder includes fibertip pen needle needle stand.
17. equipment according to claim 15, which is characterized in that the rf frequency is for substantially 27MHz or substantially
43MHz。
18. equipment according to claim 15, which is characterized in that the control circuit includes micro controller unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762530001P | 2017-07-07 | 2017-07-07 | |
| US62/530,001 | 2017-07-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109200398A true CN109200398A (en) | 2019-01-15 |
| CN109200398B CN109200398B (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821067352.9U Active CN209695984U (en) | 2017-07-07 | 2018-07-06 | Equipment for removing medical sharp device from holder |
| CN201810733443.XA Active CN109200398B (en) | 2017-07-07 | 2018-07-06 | Apparatus for removing a medical sharp from a holder |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821067352.9U Active CN209695984U (en) | 2017-07-07 | 2018-07-06 | Equipment for removing medical sharp device from holder |
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| Country | Link |
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| CN (2) | CN209695984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112716615A (en) * | 2020-12-10 | 2021-04-30 | 南华大学 | Automatic treatment system and treatment method for injection medical waste |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209695984U (en) * | 2017-07-07 | 2019-11-29 | 贝克顿·迪金森公司 | Equipment for removing medical sharp device from holder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5075529A (en) * | 1988-10-17 | 1991-12-24 | Takeshi Hirose | Electromagnetic syringe needle disposer |
| US5441622A (en) * | 1992-10-06 | 1995-08-15 | Kew Import/Export, Inc. | Sharps destruction apparatus |
| US20050016964A1 (en) * | 2003-07-22 | 2005-01-27 | Yun-Ching Chuang | Device for destroying used syringe needles by melting |
| US20120311839A1 (en) * | 2011-06-08 | 2012-12-13 | Becton, Dickinson And Company | Medical needle removal and storage device |
| US20160175542A1 (en) * | 2013-07-24 | 2016-06-23 | Needlesmart Limited | Hypodermic needle destruction |
| CN209695984U (en) * | 2017-07-07 | 2019-11-29 | 贝克顿·迪金森公司 | Equipment for removing medical sharp device from holder |
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2018
- 2018-07-06 CN CN201821067352.9U patent/CN209695984U/en active Active
- 2018-07-06 CN CN201810733443.XA patent/CN109200398B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5075529A (en) * | 1988-10-17 | 1991-12-24 | Takeshi Hirose | Electromagnetic syringe needle disposer |
| US5441622A (en) * | 1992-10-06 | 1995-08-15 | Kew Import/Export, Inc. | Sharps destruction apparatus |
| US20050016964A1 (en) * | 2003-07-22 | 2005-01-27 | Yun-Ching Chuang | Device for destroying used syringe needles by melting |
| US20120311839A1 (en) * | 2011-06-08 | 2012-12-13 | Becton, Dickinson And Company | Medical needle removal and storage device |
| US20160175542A1 (en) * | 2013-07-24 | 2016-06-23 | Needlesmart Limited | Hypodermic needle destruction |
| CN209695984U (en) * | 2017-07-07 | 2019-11-29 | 贝克顿·迪金森公司 | Equipment for removing medical sharp device from holder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112716615A (en) * | 2020-12-10 | 2021-04-30 | 南华大学 | Automatic treatment system and treatment method for injection medical waste |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109200398B (en) | 2023-03-21 |
| CN209695984U (en) | 2019-11-29 |
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