Patent Application
20200155112
The inventions described herein generally pertain to stethoscopes used for diagnostic auscultation. More particularly, the inventions described herein pertain to a retractable stethoscope providing for adjustment of the distance between the stethoscope ear piece(s) and the stethoscope chest piece.
Most stethoscopes comprise fixed-length tubing for the transmission of acoustic signals from stethoscope chest piece to at least one ear piece. This design may limit the usability of the stethoscope and be inconvenient for the user. Additionally, this standard design may lead to accidental contamination of the stethoscope due to its traditionally unwieldy anatomy.
Retractable winding mechanisms for cabling or tubing are common among audio recording and playback devices. Such devices commonly comprise cabling for the transmission of electrical signals from an audio playback device to at least one ear piece and a winding mechanism within a housing for extending, retracting, and storing the length of the cabling.
To reduce the complexity and length of this specification, the materials identified in the following paragraphs of this section are herein expressly incorporated by reference in their entirety. The incorporated material is believed to be non-essential in accordance with 37 CFR 1.57 because it is referred to for purposes of providing general support, background, or information relating to the inventions. However, if any such material is deemed essential under Rule 1.57, any such text will be expressly added herein pursuant to the applicable rules.
U.S. Pat. No. 3,798,389 of Tokizaki describes a headphone comprising a case having an annular recess in which a freely rotatable reel for the internal storage of a cord is mounted.
U.S. Pat. No. 5,422,957 of Cummins describes a cable take-up for earphones comprising a cylindrical case having a cable wound onto a rotating spool biased by a spring to retract the cable, a ratchet to prevent the cable from retracting, and an externally accessible release for the ratchet.
U.S. Pat. No. 6,616,080 of Edwards describes a retractable cord device comprising an automatic retraction and storage method for a cable or cord wherein one end of the cord may be fixed and the other extracted and retracted, or both ends may be extracted and retracted simultaneously.
U.S. Pat. No. 7,357,666 of Wu describes a cable winder using the spring force of a spiral spring to pull back a signal transmission cable automatically and a clamping part and a spiral rail for retaining the cable by sections.
U.S. Pat. No. 6,480,611 or Hashimoto describes a headphone having a cord reel comprising a winding mechanism in a housing assembly for winding an input cord into the housing assembly, including a cord reel biased to wind the input cord therearound.
U.S. Pat. No. 7,372,974 of Yanagishita describes a headphone with cord winder devices for winding up an input cord and a bridging cord.
Unless specifically noted, words and phrases in this specification and the claims are to be given their plain and ordinary English meaning. Thus, except where this specification uses the exact phrase “[word or phrase] is hereby defined to mean [definition],” the inventor expressly elects, as his own lexicographer, to use the plain and ordinary meaning of words in the specification and claims rather than a special definition. Absent such specific statement to apply a special definition, the plain and ordinary meaning applies to the terms used in the specification and claims.
The inventor is also aware of the normal precepts of English grammar. Thus, if a noun, term, or phrase is intended to be characterized, specified, limited, broadened, modified or narrowed in some way, the such noun, term, or phrase will expressly include any desired or intended adjectives, descriptive terms, or other modifiers in accordance with the normal precepts of English grammar. Absent the use of such adjectives, descriptive terms, or modifiers in the claim language, it is intended that such nouns, terms, or phrases be given their plain and ordinary English meaning in the field.
Further, the inventor is aware of the availability and limits of functional claiming under 35 U.S.C. § 112(f). As used herein or in the claims, the words “function,” “means” or “step” do not indicate an intent to invoke the special provisions 35 U.S.C. § 112(f) to define the inventions. To the contrary, if the provisions of 35 U.S.C. § 112(f) are sought to be invoked to define the inventions, the claims will specifically and expressly recite the exact phrase “means for” and will also expressly recite the word “function” followed by a description of the function (i.e., will state: “means for performing the function of [insert function]”), without also reciting in such phrases any structure, material or act in support of the function. Thus, even if a claim recites a “means for performing the function of . . . ” if a claim also recites any supporting structure, material or acts then it is the clear intention of the inventor not to invoke the provisions of 35 U.S.C. § 112(f). If the provisions of 35 U.S.C. § 112(f) are invoked to define the claimed inventions (using the technique defined above), it is intended that the inventions not be limited only to the specific structure, material or acts that are described in any specific embodiment, but in addition, include any equivalent structures, materials, or acts that perform the claimed function, or any structures, materials, or acts described in any alternative situations or forms of the inventions, or that are within the appropriate limits of claim scope and construction and that are reasonably described and reasonably enabled by this specification.
The inventions described in this specification and recited in the claims are not directed to laws of nature, natural phenomena, or abstract ideas, but instead, are directed to one or more of the expressly permitted statutory categories of inventions, i.e., processes, machines, manufactures, or compositions of matter. Nor are the inventions claimed herein directed to any prohibited examples of abstract ideas such as fundamental economic practices, methods of organizing human activity, an idea itself, or any mathematical relationships/formulas. To be clear, the claimed inventions are directed to significantly more than any abstract idea by itself.
Numerous possible or potential aspects, objects, modifications, features, uses, or advantages of various inventions described herein will be apparent to those of ordinary skill in the art from this specification, drawings, and claims. However, without characterizing or limiting the scope of the various inventions as they are claimed, some of the possible or potential aspects, objects, features, uses, or advantages of various inventions are summarized below. None of the following possible or potential aspects, objects, features, uses, or advantages are a disavowal, disclaimer, characterization, or interpretation of any aspects of any of the claims. These possible or potential aspects, objects, features, uses, or advantages might apply to any or none of the claimed inventions.
Traditional stethoscopes are long and unwieldy, often hanging in an unrestrained manner from around the user's neck. This design—which allows the loose stethoscope to swing around the medical environment—can result in unintentional contamination of the device. It may be an object, goal, or advantage of some of the inventions to provide a tool for diagnostic auscultation that is compact, self-containing, and easy to store or access between uses, in turn decreasing the risk of accidental contamination of a stethoscope. These and other objects, goals, or advantages may be achieved by a retractable stethoscope.
A retractable stethoscope may comprise a case; at least one length of acoustic tubing having at least one continuous airpath within the tubing; a chest piece that may couple to one end of the acoustic tubing; and at least one ear piece that may couple to another end of the acoustic tubing. Each ear piece 104 may be in fluid communication with the chest piece 103 via the at least one continuous airpath within the acoustic tubing 102. The length of the acoustic tubing may be housed within the case.
A retractable stethoscope may be configured to extend from or retract into the case from either the ear piece end or the chest piece end of the acoustic tubing. A retractable stethoscope may also be configured to extend from and retract into the case from both the ear piece end and the chest piece end of the acoustic tubing, either independently or simultaneously.
A retractable stethoscope may be configured to constantly apply a retracting force to the acoustic tubing, or it may be configured to allow the acoustic tubing to be locked in one or more extended positions. Such design features may include—but are not limited to—reels having at least one locking tooth which may lock the retractable stethoscope in various extended positions corresponding to the size of the teeth; extension locks which may engage and disengage a locking function at the user's will, or impediments on the acoustic tubing itself that halt retraction, such as the ear piece, the chest piece, or a stopper. The locking function allows for the acoustic tubing to be kept in one or more unspooled positions having a distance between the chest piece and the ear piece that is increased over that of the stethoscope in its fully retracted position.
Additionally, the retractable stethoscope may feature a belt clip attached to the back of the retracting housing. A belt clip may allow for the retractable stethoscope to be conveniently stored and accessed by the user as needed by easily and securely clipping onto an article of the user's clothing, such as a belt, shirt, or lanyard. Alternatively, the retractable stethoscope case may be made of a magnetic material such that a user may quickly access or store the stethoscope on a compatible magnetic surface.
A more complete understanding of the present invention may be derived by referring to the DETAILED DESCRIPTION when considered in connection with the figures. In the figures, like reference numbers refer to like elements or acts. While the figures provide several examples of aspects, elements, modifications, or components that may or may not be variously involved with the systems, methods, and devices described herein, the figures are not provided to define, limit, or affect the scope of the inventions claimed or described herein.
Elements and acts in the figures are illustrated for simplicity and have not been rendered according to any particular embodiment or example and are not to depict any essential or required limitations.
In the following description, and for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the various aspects of the invention. However, it will be understood by those skilled in the relevant arts that the present invention may be practiced without these specific details. In other instances, known structures and devices are discussed more generally in order to avoid obscuring the invention. In many cases, a description of the operation is sufficient to enable one to implement the various forms of the invention. It should be noted that there are many different and alternative configurations, devices, and technologies to which the disclosed inventions may be applied. The full scope of the inventions is not limited to the examples that are described below.
The case 101, shown in
The two-way retractable stethoscope may be configured to lock in various extended positions corresponding to the size and number of locking teeth 501 on one or both of the independently retracting reels 404a, 404b. The retractable stethoscope may also be configured such that one or both of the reel tension springs 405a, 405b may apply a constant rotational force on the corresponding independently retracting reel 404a, 404b. The constant rotational force results in a retracting pull force that is constantly applied to the acoustic tubing 102a, 102b by the corresponding independently retracting reel 404a, 404b. In a constantly retracting configuration, a case 101 may further comprise an extension lock 201 that may comprise a lock top piece 201a coupled by a switch tension spring 201b to a locking switch 201c. The extension lock 201 may relieve and reapply the retracting pull force to the acoustic tubing 102 at the user's will. When engaging or disengaging the extension lock, the user can use the lock top piece 201a which remains accessible when the case is fully assembled.
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Many of the components of the embodiments described above may be commercially available. Those components that are not commercially available may be manufactured using a variety of materials suitable for their intended purposes, including but not limited to various metals and polymers. Exemplary materials may include 7075 aluminum alloy for the case 101, PVC microbore tubing for the acoustic tubing 102, 102a, 102b, ABS plastic for the reels 303, 404a, 404b and neoprene for the gasket 407. Alternatively, the case 101 may be made of a magnetic material such that a user may quickly access or store the stethoscope on a compatible magnetic surface.
Inventions pertaining to a retractable stethoscope are described above. Various changes may be made to the inventions without departing from their scope. The above descriptions of non-limiting, exemplary embodiments are provided for the purpose of illustration only and not limitation, with the invention being defined by the claims and equivalents thereof.
This application claims priority to U.S. Provisional Application No. 62/589,395, which is incorporated by reference herein in its entirety.
