ELECTRONIC ASPIRATOR
20190175202 ยท 2019-06-13
Inventors
Cpc classification
A61M1/78
HUMAN NECESSITIES
A61M2205/59
HUMAN NECESSITIES
A61B17/24
HUMAN NECESSITIES
International classification
A61B17/24
HUMAN NECESSITIES
Abstract
An aspirator including an impeller driven by a driving component to create a suction through a fluid inlet; a housing surrounding the impeller; and a disposable tip. The disposable tip is removeably couplable to the housing at the fluid inlet, defines a fluid intake port in fluid communication with the outside environment and the fluid inlet, and has an aspirated bodily fluid collection region that collects and retains aspirated bodily fluids drawn into the disposable tip by the impeller's suction.
Claims
1. An aspirator comprising: a housing having a suction inlet; an impeller disposed within the housing, the impeller being driven by a driving component to create a suction through the suction inlet; and a disposable tip that is removeably couplable to the housing at the suction inlet and includes a fluid intake port at a distal end of the disposable tip and a fluid exit port at a proximal end at the suction inlet and having a passage between the intake port and fluid exit port, the disposable tip further including an aspirated bodily fluid collection region within the passage including at least one barrier within the passage that changes direction of a flow of the aspirated fluids within the fluid collection region and retains the aspirated fluids within the fluid collection region.
2. The aspirator in accordance with claim 1, wherein: at least a portion of the disposable tip is formed as a nasal insertion tip, the nasal insertion tip being dimensioned and configured for insertion with a nostril.
3. The aspirator in accordance with claim 1, wherein: the aspirated bodily fluid collection region includes multiple barriers disposed to direct a flow of the aspirated bodily fluids to reverse direction within the disposable tip.
4. The aspirator in accordance with claim 1, wherein: the aspirated bodily fluid collection region includes X-shaped barriers disposed to direct a flow of the aspirated bodily fluids in a zig-zag pattern within the disposable tip.
5. The aspirator in accordance with claim 1, wherein: the aspirated bodily fluid collection region includes a multidirectional chamber defining a multidirectional bodily fluid passageway within the disposable tip, the multidirectional bodily fluid passageway having at least two separate portions along a length of the passageway that at least partially overlap one another within the disposable tip.
6. The aspirator in accordance with claim 1, wherein the impeller: includes a plurality of blades and is fixedly coupled to a rotation shaft of the driving component.
7. The aspirator in accordance with claim 1, wherein: the impeller defines a center inlet and includes a plurality of blades disposed around the center inlet, the plurality of blades being operably configured to push air in a radially outward direction during a rotary motion of the impeller.
8. The aspirator in accordance with claim 1, wherein: the housing at least partially defines an airflow discharge passage fluidly coupling the impeller to at least one exhaust port disposed at a distal end of the housing opposite a proximal end of the housing at which the impeller is disposed; and the impeller includes a plurality of blades operable to direct airflow created by the impeller through the airflow discharge passage and to the outside environment via the at least one exhaust port.
9. The aspirator in accordance with claim 1, wherein: the driving component is formed as a motor; and the housing includes at least one exhaust port at a distal end of the housing, the at least one exhaust port disposed a sufficient distance from the impeller and the motor such that noise from the impeller and the motor is below 85 decibels.
10. The aspirator in accordance with claim 1, further comprising: a vibration-dampening material disposed around the driving component and configured to absorb vibrations created by the driving component.
11. The aspirator in accordance with claim 1, further comprising: a decorative body removeably couplable to the housing at the suction inlet and defining an opening for receiving at least a portion of the disposable tip through the opening into the outside environment.
12. The aspirator in accordance with claim 11, wherein: the decorative body includes an animal face surface disposed to face away from the housing such that the animal face surface is viewable by a patient in a nasal aspiration use-configuration.
13. The aspirator in accordance with claim 1, further comprising: a speaker, an audio data port, and a processing device at least partially disposed within the housing, the processing device operably configured to receive a music file via the audio data port and cause audio signals associated with the music file to emit through the speaker.
14. The aspirator in accordance with claim 1, wherein: the housing includes an exterior surface, at least a portion of the exterior surface formed as a handle portion with a user gripping surface disposed to receive an operator's hand grip to guide and hold at least a portion of the disposal tip into a patient's nostril.
15. The aspirator in accordance with claim 1, further comprising: an actuator button disposed on the housing and operable to selectively rotate the impeller to create the suction.
16. A disposable nasal tip for an aspirator, comprising: a coupling element configured to removeably couple the disposable nasal tip to the aspirator at a suction inlet of the aspirator; a fluid intake port in fluid communication with an outside environment; and an aspirated bodily fluid collection region, formed in the disposable nasal tip between the fluid intake port and a fluid exit port, including non-filter barriers configured to collect and retain aspirated bodily fluids drawn into the disposable nasal tip by a suction force from the aspirator, the non-filter barriers retaining the aspirated bodily fluids by changing a direction of a flow of the aspirated bodily fluids within the disposable nasal tip.
17. The disposable nasal tip in accordance with claim 16, wherein: the non-filter barriers are disposed to direct a flow of the aspirated bodily fluids to reverse direction within the disposable nasal tip.
18. The disposable nasal tip in accordance with claim 16, wherein: the non-filter barriers are disposed to direct a flow of the aspirated bodily fluids in a zig-zag pattern within the disposable nasal tip.
19. An aspirator kit comprising: an aspirator device including a suction inlet, an impeller driven by a driving component to create a suction through the suction inlet, and a housing surrounding the impeller and the driving component; and at least one disposable tip, each of the at least one disposable tip that is removeably couplable to the housing at the suction inlet and defines a fluid intake port in fluid communication with an outside environment and the suction inlet, and that has an aspirated bodily fluid collection region that collects and retains aspirated bodily fluids drawn into the disposable tip by the impeller's suction by changing a direction of a flow of the aspirated bodily fluids within the disposable tip.
20. The aspirator kit in accordance with claim 19, further comprising: at least one decorative body, each of the at least one decorative body being removeably couplable to the aspirator device and defining an opening for receiving at least a portion of the disposable tip through the opening into the outside environment; and wherein: each of the at least one decorative body includes a decorative surface facing away from the housing and each of the least one decorative body having a different decorative surface from the other ones of the at least one decorative body.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0034] The accompanying figures, where like reference numerals refer to identical or functionally similar elements throughout the separate views and which together with the detailed description below are incorporated in and form part of the specification, serve to further illustrate various embodiments and explain various principles and advantages all in accordance with the present invention.
[0035]
[0036]
[0037]
[0038]
[0039]
[0040]
[0041]
[0042]
DETAILED DESCRIPTION
[0043] While the specification concludes with claims defining the features of the invention that are regarded as novel, it is believed that the invention will be better understood from a consideration of the following description in conjunction with the drawing figures, in which like reference numerals are carried forward. It is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms.
[0044] The present invention provides a novel and efficient electronic aspirator. Embodiments of the invention provide an electronic portable aspirator that includes an impeller, which provides a suction force that is stronger than conventional bulb syringes, diagram-pump aspirators, and other known aspirators. In addition, embodiments of the invention provide an aspirator with a disposable tip removeably couplable to the housing of the aspirator and designed to trap bodily fluids, such as mucous, within the disposable tip for easy clean-up and so that such bodily fluids do not enter the aspirator housing. Additional embodiments of the invention provide for a removable and interchangeable decorative face that can comfort patients (e.g., children) and/or an audio system that can selectively upload and play music files to further comfort/distract the patient from the bodily fluid removal process. Yet other embodiments of the invention provide for noise reduction and vibration dampening features.
[0045] Referring now to
[0046] The housing 102 may be considered an aspirator housing that substantially surrounds the impeller 104. In the exemplary embodiment, the housing 102 is cylindrical in shape. In other embodiments, the housing 102 may be other shapes and sizes, such as, for example, L-shaped. The housing 102 is preferably formed as a waterproof, hermetically sealed housing so as to protect the electrical components housed therein from the outside environment. In a further embodiment, the electronic components may be coated with a hydrophobic coating. In another embodiment, the housing 102 may not be waterproof. In yet another embodiment, the aspirator 100 may be considered splash proof, meeting at least an IPX4 level of protection.
[0047] The housing 102 may include walls that are made of a plastic or other polymer-based material. In other embodiments, the housing 102 may be made of other materials. In one embodiment, the housing 102 may have an exterior wall 103 that is about 0.050 to 0.100 thick and may be 5.000 to 7.000 in length. In other embodiments, the housing 102 may have other dimensions. In a preferred embodiment, the housing 102 is sized and shaped to provide a portable hand-held aspirator that can be used on-the-go and stored and transported easily (e.g., being small and light enough to be conveniently storable within, for example, a diaper bag).
[0048] The housing 102 may include a suction inlet 106. The suction inlet 106 may be considered a relatively narrow passageway fluidically coupled to the impeller 104, through which a suction force 108 created by the impeller 104 draws-in/sucks-in air from the outside environment 110. In other words, the impeller 104 creates a negative pressure that draws-in air from the outside/ambient environment 110 through the suction inlet 106. Stated yet another way, the impeller 104 may have a suction side 106 opposite a discharge side through which air can be discharged back into the outside environment 110, as will be discussed in more detail herein below. The suction inlet 106 may be formed as a neck portion of the housing 102 and may be sized and shaped to couple to a bodily fluid removal element, such as, a disposable nasal tip 200 (
[0049] The impeller 104 preferably creates a suction force 108 that is greater than a typical force of a bulb syringe, diaphragm-pump aspirators, and other known aspirators. The impeller 104 is driven by a driving component, such as a DC motor 122, to create the suction 108 through the suction inlet 106. In one embodiment, the impeller 104 is fixedly coupled to a rotation shaft 130 of the motor 122. In one embodiment, rotation of the motor 122 may rotate the rotation shaft 130 and the impeller 104 to create the suction 108 through the suction inlet 106.
[0050] In one embodiment, the aspirator 100 operates at 12 volts, spinning the motor 122 at 30,000 revolutions-per-minute (RPMs), as measured at 0.500 from its center. In other embodiments, the motor 122 may spin the impeller 104 at a rate of between 25,000-40,000 RPMs. Such high RPMs should create a suction force that is much stronger than a typical bulb syringe, diaphragm-pump aspirators, and other known aspirators. In yet other embodiments, the motor 122 may rotate the impeller 104 at RPMs outside of these ranges, but should generally rotate quickly enough to generate a strong suction force 108, as compared to known nasal aspirators, such as, for example, the bulb syringe and diaphragm-pump aspirators.
[0051] In one embodiment, the impeller 104 may be formed as a centrifugal compressor impeller 800, as shown in
[0052] The impeller 104 may define an impeller inlet 112 disposed at a center of the impeller 104 (sometimes referred to in the art as an impeller's eye) and may also include a plurality of blades 114 disposed around the impeller inlet 112. The number of blades 114 may be any number. In one embodiment, the number of blades 114 is between 5-30 blades 114. In another embodiment, a thickness of the blades 114 may be within a range of 0.025-0.050. In other embodiments, the thickness of the blades 114 may be outside of this range.
[0053] The plurality of blades 114 may be operably configured to push air in a radially outward direction during a rotary motion of the impeller 104. Stated another way, the plurality of blades 114 may be operable to direct an airflow 116 (as indicated by the dotted lines shown in
[0054] The rotary motion of the impeller 104 and the motor 122, while generating a stronger suction force 108 than many known aspirators, may also tend to create undesirable noise and vibration effects. Accordingly, in one embodiment, the position of the impeller 104 relative to the exhaust port 120 may be configured to reduce noise. For example, the impeller 104 may be disposed at a proximal end 124 of the housing 102 and the exhaust port 120 may be disposed at a distal end 126 of the housing 102, opposite the proximal end 124. The exhaust port(s) 120 should preferably be positioned a distance away from the impeller 104, without negatively affecting the suction 108. This is possible because air flows from high-pressure to low-pressure. To elaborate, the exhaust ports 120 should be areas of low-pressure, as compared to the high-pressure created by the impeller 104 sucking-in air at the proximal end 124 of the housing 102. Due to the position of the exhaust ports 120 a sufficient distance downstream of the impeller 104, the air flowing through the airflow discharge passage 118 should slow down by the time the air reaches the exhaust ports 120 downstream. This reduces the noise level of sound created by the high-speed movement of the impeller 104. Further, a thickness and/or material properties of the housing 102 walls may also be selected to further reduce the noise level for the patient.
[0055] In one preferred embodiment, the exhaust port 120 is disposed a sufficient distance from the impeller 104 and the motor 122 such that a noise from the impeller 104 and the motor 122 is below 85 decibels (as measured from a sound level meter that is less than 4 inches away from the aspirator 100). In a more preferred embodiment, the exhaust port 120 is disposed a sufficient distance from the impeller 104 and the motor 122 such that a noise from the impeller 104 and the motor 122 is within a range of 60-75 decibels. In yet other embodiments, the noise may be outside of this range, but should be generally below 85 decibels.
[0056] In another embodiment, vibration caused by the motor 122 may be reduced by the inclusion of vibration-dampening material 128 disposed around the motor 122. Vibration from the motor 122 may cause a tickling or other undesirable agitation of a patient's body part (e.g., nose). The vibration-dampening material 128 may be any known material operable to absorb vibrations, such as, for example, sorbothane, polyurethane foams, and other like materials. In other embodiment, the aspirator 100 may not include vibration-dampening material 128.
[0057] The portable electronic aspirator 100 further includes a power source 132. In one embodiment, the power source 132 is a rechargeable battery (e.g., Li-Ion 14500 cell) disposed within the housing 102. The power source 132 is electrically coupled to the motor 122 to drive rotation of the impeller 104. The power source 132 may be rechargeable via, for example, a power connector 134 (e.g., 2.1 mm jack, USB connector, etc.) disposed to couple to, for example, a wall charger. In one embodiment, the rechargeable batteries 132 may output 12 Vac, when fully charged, to provide the motor 122 with the power to reach the RPMs required for optimal suction. In a further embodiment, the aspirator 100 may further include a protection circuit 136 operably configured to prevent over-charging the power source 132 and prevent electrical damage due to current spikes. In one embodiment, the protection circuit 136 may be configured with a shut-off voltage that prevents the power source 132 from dropping below the optimal suction voltage. In one embodiment, the protection circuit 136 is configured with a shut-off voltage of, for example, 9 Vac. In certain embodiments, RPMs of the motor 122 significantly drop when power drops below 9 Vac (resulting in a less than optimal suction force at the suction inlet 106). In yet a further embodiment, one or more resistors may be included in the circuit between the power source 132 and the motor 122 to limit an in-rush current.
[0058] Referring now primarily to
[0059] As used herein, the term disposable is intended broadly to indicate an article or device that is configured to be used once, or a few times, or until no longer useful, and then thrown away. In one embodiment, the disposable tip 200 may be more narrowly configured for single-use application. In yet further embodiments, the disposable tip 200 may be made of a biodegradable material, such as, for example, a PLA or HDPE with biodegradable additives. The term tip, as used herein, is intended to indicate a pointed, rounded, tapered, or otherwise narrow (as compared to the housing 102) end or attachment that is configured and dimensioned for insertion, of at least a portion thereof, within a human body orifice (e.g., nose).
[0060] The disposable tip 200 may be dimensioned and configured to couple to the housing 102 at the suction inlet 106. In one embodiment, the disposable tip 200 may include a coupling element 204. The coupling element 204 may be dimensioned and configured to matingly engage the suction inlet 106 by, for example, a press fit coupling. For example, a diameter of the coupling element 204 may be sized to be the same, or slightly larger than a diameter of the suction inlet 106 to couple the housing 102 to the tip 200 by a friction fit. In other embodiments, the disposable tip 200 may be removeably couplable to the housing 102 in other known ways and using other known fastening devices. The disposable tip 200 may, in an alternative embodiment, be fixedly coupled to the housing 102 at the suction inlet 106.
[0061] The disposable tip 200 defines a fluid intake port 206 that, when coupled to the housing 102, is configured to be in fluid communication with both the outside environment 110 and the suction inlet 106. More specifically, the suction force 106 from the impeller 104 draws-in air from the outside environment 110 through the fluid intake port 206 of the tip 200 and through the suction inlet 106 of the housing 102. The design of the disposable tip 200 should include fluid passageways that permit the free flow of air from the outside environment 110 (i.e., not materially inhibiting the suction force) to the impeller 104; yet be simultaneously configured to trap and retain viscous bodily fluids within the tip 200.
[0062] In one embodiment, the disposable tip 200 may define a single fluid intake port 206. In other embodiments, the disposable tip 200 may define more than one fluid intake port 206. For example, in some embodiments, the disposable tip 200 may define a distal central intake port at a nasal insertion portion of the tip 200 to draw-in mucous, as well as, a plurality of side intake ports disposed to draw-in additional ambient air from the outside environment 200.
[0063] In one embodiment, each fluid intake port 206 may define at least one entrance aperture 207. The entrance aperture 207 may have a diameter that is about 0.150. In other embodiments, the entrance aperture 207 may be larger or smaller than 0.150 in diameter. The disposable tip 200 may also include a fluid exit port 208 that may be disposed opposite to and/or concentric with the fluid intake port 206. Between the fluid intake port 206 and the fluid exit port 208, an aspirated bodily fluid collection region 210 may be disposed to collect and retain aspirated bodily fluids within the tip 200, while simultaneously permitting air from the outside environment 110 to flow through to the impeller 104 within the housing 102. Preferably, the design of the disposable tip 200 should trap viscous bodily fluids therein, without substantially obstructing the suction air flow.
[0064] In one embodiment, the disposable tip 200 retains the aspirated bodily fluids by changing the direction of the flow of the aspirated bodily fluids 202. As used herein, the phrase changing the direction of the flow of the aspirated bodily fluids is intended to indicate that the flow continues to move, but in a different direction. Stated another way, the phrase changing the direction of the flow of the aspirated bodily fluids is not intended to encompass sponge-type filters that merely stop the movement of mucous through a tube.
[0065] In one embodiment, the aspirated bodily fluids collection region 210 may include at least one barrier 212 that changes or redirects the flow of aspirated bodily fluids 202. In a further embodiment, the barrier 212 may be formed as a U-shaped wall, with the U curving towards the fluid exit port 208, as shown in
[0066] In yet a further embodiment, a second set of barriers 214 may be disposed downstream of the barrier 212 and may be disposed to reverse a direction of the flow of fluids 202. In other words, the barrier(s) 214 may reverse the direction of the flow of aspirated bodily fluids 202 such that the flow becomes directed towards the entrance aperture 207 (or fluid intake port 206), rather than away from it. This concept of reversing the direction of fluid flow may be illustrated by a comparison of the arrows 216 (illustrating an initial direction away from the entrance aperture 207) and 218 (illustrating a reversal direction towards the entrance aperture 207). By reversing the direction of the flow of aspirated bodily fluids 202 within the collection region 210, such fluids are retained within the disposable tip 200, rather than entering the housing 102. In one embodiment, the barrier(s) 214 may be considered to be walls that are angled toward the entrance aperture 207. Such barrier walls 214 may, for example, be angled between 5 degrees to 85 degrees generally toward the entrance aperture 207.
[0067] The barrier walls 214 may be substantially flat, smooth, and/or planar. In other embodiments, the barrier walls 214 or 212 may be slightly curved, or rectilinear in shape. In other embodiments, such shapes and dimensions may vary, but should generally be configured to change the direction of flow of viscous bodily fluids within the disposable tip 200 thereby retaining or trapping such bodily fluids therein.
[0068] In one embodiment, the aspirated bodily fluids collection region 210 may be dimensioned and configured to direct the flow of aspirated bodily fluids 202 in a zig-zag pattern within the disposable tip 200, as shown in the exemplary embodiment depicted in
[0069] In a preferred embodiment, the disposable tip 200 is dimensioned and configured for insertion with a human nostril, preferably being small enough for insertion with a human infant's nostril. Thus, in preferred embodiments, at least a portion of the disposable tip 200 may be formed as a nasal insertion tip portion. For example, an absolute end 224 (opposite the coupling element 204) of the disposable tip 200 may have a diameter or width that is smaller than a diameter or width of an average-sized human infant's nostril. It is contemplated that in alternative embodiments, the disposable tip 200 may be configured and dimensioned for insertion within other human orifices, within which it may be desirable to remove other bodily fluids.
[0070] Referring now primarily to
[0071] In one embodiment, the portable electronic aspirator 100 may be provided in the form of an aspirator kit. The aspirator kit may include the housing 102 surrounding the impeller 104, the motor 122, and the other electronic components and fluid passageways, as described herein above with reference to
[0072] The housing 102 may also be dimensioned and configured as an operator handle portion. Stated another way, an exterior surface 502 of the housing 102 may be formed as a user gripping surface disposed to receive an operator's hand grip. As shown in
[0073] The aspirator 100 may also include an actuator button 504 disposed on the housing 102. The actuator button 504 may be coupled to the electronic components within the housing 102 and may be operable to selectively rotate the motor 122 and the impeller 104 to create the suction force 108 at the suction inlet 106. The actuator button 504 may be preferably disposed on the handle portion of the housing 102 at a position that provides for convenient pressing of the button 504 while the operator is gripping the handle portion of the housing 102.
[0074] Referring now primarily to
[0075] The process flow chart of
[0076] The process may begin in step 700 and may immediately proceed to step 702, where the operator (e.g., a parent or a medical professional) may be provided with the impeller 104 disposed with the housing 102. In step 704, the operator may attach the disposable tip 200 to the housing 102. In step 706, the operator may insert at least a portion of the disposable tip 200 within the patient's 500 nostril. In step 708, the operator may turn-on the impeller 104, thereby rotating the impeller 104 to create the suction force 108 sufficient to draw-out mucous from the nasal cavity into the disposable tip 200. In step 710, after the mucous has been drawn-out of the nasal cavity, the operator may turn-off the impeller 104 and remove and discard the disposable tip 200. In step 712, the operator may decide whether to use the aspirator 100 at a subsequent instance/time. If the answer is yes, the process may proceed back to step 704, where the operator may attach another (unused) disposable tip 200. The process may repeat steps 704 through 712 again. If the answer is no, the process may proceed to step 714, where the process may immediately end.
[0077] A novel and efficient electronic aspirator has been disclosed that increases the suction strength over existing aspirators, while also providing for easy and efficient clean-up. Embodiments of the invention provide an electronic portable aspirator that includes an impeller, which provides a suction force that is stronger than conventional bulb syringes, diaphragm-pump aspirators, and other known aspirators. In addition, embodiments of the invention provide an aspirator with a disposable tip removeably couplable to the housing of the aspirator and designed to trap bodily fluids, such as mucous, within the disposable tip for easy clean-up and so that such bodily fluids do not enter the aspirator housing. Additional embodiments of the invention provide for a removable and interchangeable decorative face that can comfort patients (e.g., children) and/or an audio system that can selectively upload and play music files to further comfort the patient during the bodily fluid removal process. Yet other embodiments of the invention provide for noise reduction and vibration dampening features.