Various types of tourniquets have been used when necessary to stop the flow of blood through an injured arm or leg so as to prevent death of the injured through loss of blood. However, existing tourniquets are typically carried as a separate piece of gear and are often unwieldy and bulky, adding additional weight and bulk to the already substantial gear that a soldier or emergency services person must carry on his or her person. These difficulties can be compounded when an injured person attempts to fix the tourniquet on him or herself or another injured person. For example, even if the tourniquet is accessible, it may be very difficult to apply the tourniquet to one of the person's own arms with the use of only the remaining hand. Further, the environment within which the user finds himself during fixing of the tourniquet can be an issue (e.g., within a collapsing building or under enemy fire).
When medical personnel take blood from a patient, a rubber band or rubber tube is often used to restrict blood flow. However, the rubber band or rubber tubing is not intended to entirely stop blood flow. It is also difficult for medical personnel to fix the rubber band or rubber tube to the patient without the use both hands.
The present invention is directed to multi-use cleats, as well as methods for manufacturing and using multi-user cleats.
Embodiments of the invention include a multi-use cleat having defined openings configured to receive and to securely hold portions of a cord in a clasped and fixed position upon being placed into the cleat. One or more openings of a multi-use cleat can be configured with one or more teeth to assist in holding a cord in a clasped and fixed position. Openings of a multi-use cleat can also be arranged and configured to receive different types of cord, such as, for example, round cords, flat cords, etc. A multi-use cleat can be used to secure a cord for any number of different applications, including for use in tourniquets, maintaining tension in a line holding up a tent, etc.
These and other objects and features of the present invention will become more fully apparent from the following description, or may be learned by the practice of the invention as set forth hereinafter.
To further clarify the above and other advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It is appreciated that these drawings depict only illustrated embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail through the use of the accompanying drawings in which:
The present invention is directed to multi-use cleats, as well as their use and manufacture. Embodiments of the invention include a multi-use cleat having defined openings configured to receive and to securely hold portions of a cord in a clasped and fixed position upon being placed into the cleat. One or more openings of a multi-use cleat can be configured with one or more teeth to assist in holding a cord in a clasped and fixed position. Openings of a multi-use cleat can also be arranged and configured to receive different types of cord, such as, for example, round cords, flat cords, etc. A multi-use cleat can be used to secure a cord for any number of different applications, including for use in tourniquets, maintaining tension in a line holding up a tent, etc.
Some embodiments of the invention facilitate tourniquet use and application under a wide variety of different environmental conditions. More specifically, some embodiments of the invention provide quick and efficient tourniquet use and application under environmental conditions including one or more of: limited light conditions, self-application conditions, and when the person applying the tourniquet has use of only a single hand.
Single Loop Embodiments
As depicted in
Cord 102 can be constructed from any material, such as, for example, elastomeric materials, that permits cord 102 to be stretched when appropriate tension is applied. Stretching can help facilitate locking/clasping of cord 102 in place. In some embodiments, cord 102 is constructed from bungee cord materials. However, stretching may not be appropriate for all applications. Thus alternately, cord 102 can be constructed from materials that are not elastomeric and/or that do not stretch.
Cord 102 can be constructed in virtually any desired coloring pattern of a color or of a combination of colors. For example, cord 102 can be white with black helical stripes. Alternately, cord 102 can be high contrast yellow. In some embodiments (not shown), portions of cord 102 are constructed of a color having increased visibility in low light conditions. For example, some coloring patterns can include white, red, orange or yellow pigment that is applied to end 106 and/or end 108, while remaining portions of cord 102 are colored with a different pigment. Alternately, all of cord 102 can be colored with the same pigment.
The length of the cord 102 can vary to accommodate any need and preference. In one embodiment, the cord 102 is configured to have a length of at least one foot. In other embodiments, the cord 102 has a length of greater than two feet.
The cross-sectional area of cord 102 can also vary to accommodate any need and preference. Generally, the cross-sectional area (e.g., diameter) of cord 102 is sufficient to prevent cord 102 from cutting and permanently damaging the tissue around which the tourniquet 100 applied. Any elastomeric properties of the cord material of cord 102 can also help prevent tissue damage. For example, cord 102 can stretch and give way when tension is applied to cord 102, while still enabling the cord 102 to be sufficiently tightened into place.
The cross-sectional shape of cord 102 can also vary to accommodate any need and preference. Although cord 102 is depicted as having a round cross section, virtually any cross-section shape can be used. For example, a “flat” cord can be used in which the cross-section of cord 102 is generally rectangular (and potentially square). A cord with a rectangular cross-section can provide for a larger surface area of contact against the tissue where the tourniquet is applied. Increased contact surface area can result in less discomfort and/or pinching of the skin around an area tourniquet 100 is applied.
Clamp 114 is used to attach end 108 back to cord 102, forming loop 110. Clamp 114 can be used during manufacture of tourniquet 100 to fix or form loop 110 into a desired size and placement on cord 102. Clamp 114 can be a plastic or metal clamp. Other attachment mechanisms for forming or fixing loop 110 can also be used. For example, loop 110 can be formed through weaving or sewing processes in which portions of cord 102 are sewn or woven together with natural, synthetic, and/or even metallic fibers and other similar elements. Adhesives, knots, pins, buckles, and other attachment means can also be used to attach portions of the cord 102 together in such a way to form loop 110. In other embodiments (not shown), a loop is selectably adjustable. For example, buckles or clamps can be used to attach portions of cord 102 together so as to adjust the size of loop 110 into a releasably fixed state.
As depicted in
Turning now to
With more specific reference to cleat 104, cleat 104 also includes recesses 118A and 118B. Each of recesses 118A and 118B include recessed areas 119 (e.g., pockets) and teeth 120. Recessed areas 119 and teeth 120 are configured to facilitate multiple points of engagement for cord 102 within each of recesses 118A and 118B. These multiple points of engagement permit cord 102 to be wrapped around stem 124 multiple times
When cord 102 is wrapped around the stem 124 multiple times (not shown), recessed areas 119 and teeth 120 engage cord 102 at a plurality of points on the cord 102. For example, recessed areas 119 and teeth 120 engage cord 102 at each point in which the cord 102 passes through either of recesses 118A and 118B and around the stem 124. Referring briefly to
To increase the precision of the cleat 104 and teeth 120 in engaging cord 102, teeth 120 can be formed with a water jet process that cuts teeth into the cleat 104 with precise tolerances. Cleat 104 can also be formed from injection molding, stamping, forging or casting processes, depending on the material of the cleat 104. In some embodiments the cleat 104 is formed of a plastic. In other embodiments, cleat 104 is formed partially or entirely out of metal. Two part molding processes can also be used to configure the cleat 104 out of different materials, such as, for example, to expose one material within the recess portions 118A and 118B and to manufacture the rest of the cleat 104 out of another material
Cleat 104 can be constructed in virtually any desired coloring pattern of a color or of a combination of colors. For example, the cleat 104 can be colored with a fluorescing pigment or another coloring pattern that facilitates identification in low light conditions. In some embodiments, the color of cleat 104 is selected to contrast with the color pattern of cord 102 so that the different components of tourniquet 100 are more easily distinguished from one another.
Turning now to
Although not shown, cord 102 can also be wrapped around the leg 150 again, one or more times, and tightened in place around the cleat 104 (after each time it is wrapped around the leg 150, or only once after all of the wraps are completed, or any desired number of times).
Multiple Loop Embodiments
As depicted in
The construction of cord 202, including materials, length, color, cross-sectional shape, and cross-sectional area, can be varied similar to the construction of cord 102, to accommodate any need or preference.
As depicted in
Cleat 204 and/or clamp 214 can be used during manufacture of tourniquet 200 to fix or form loops 210 and/or 212 into a desired size and placement on cord 102. Other attachment mechanisms for forming or fixing loops can also be used. For example, loops can be formed through weaving or sewing processes in which portions of cord 202 are sewn or woven together with natural, synthetic, and/or even metallic fibers and other similar elements. Adhesives, knots, pins, buckles, and other attachment means can also be used to attach portions of the cord 202 together in such a way to form loops. In other embodiments (not shown), a loop is selectably adjustable. For example, buckles or clamps can be used to attach portions of cord 202 together so as to adjust the size of loops 210 and/or 212 into a releasably fixed state.
Turning to
Turning to
Turning to
Cord 202 is held in a locked position within the cleat 204 after passing cord 202 through both of the recesses 218A and 218B. It will be appreciated, however, that it is not always necessary to pull cord 202 through both recesses 218A and 218B prior to locking cord 202 in a fixed position. For example, it may be sufficient to pull cord 202 through one of recesses 218A and 218B when the cord 202 is configured with knots, anchors or other structures (not shown, but which can be included) that further engage with the cleat 204 and that are positioned on end 106. It will also be appreciated that the cleat 204 can be configured with different configurations of teeth 220 and recesses 218, to enable the cord 202 to pass into and engage with the cleat 204 in a different manner.
In one alternative embodiment, a cleat includes a plurality of small teeth that extend entirely along a recess that is longer in length than the recesses shown in
In other embodiments, recesses 218A and 218B are rotated 90 degrees about the cylindrical axis passing through cleat 204 and such that cord 202 can be passed through cleat 204, in alignment with the axis and pulled up through one of recesses 218A and 218B into a locked position.
While recesses 218A and 218B are shown to have a fixed shape and a substantially rounded interior surface at their ends, it will be appreciated that cleat 204 can also be configured with an angled entry that extends all the way to the interior end of the recesses 218A and/or 218B, with teeth structures 220 lining the interior of the recesses 218A and/or 218B that are configured to securely engage and hold onto cord 202. Other shapes and sizes of the recesses 218A and/or 218B can also be employed. For example, the entry to recesses 218A and/or 218B can be outwardly flared, so as to more easily facilitate entry of cord 202.
Further configurations of cleat 204 include forming cleat 204 out of any suitable plastic and/or metal material. In some embodiments, cleat 204 is formed from existing piping material (plastic (PVC-type piping) or metal piping) that is cut to size and then manufactured to have the desired recesses 218A and/or 218B. The recesses 218A and/or 218B can be formed through stamping, melting or any desired cutting and/or sanding processes.
The foregoing examples refer expressly to tourniquet 200 having two loops, 210 and 212. However, tourniquets having three or more loops are also contemplated. Any additional loops, which are positioned between loops 210 and 212 beneficially minimizes the distance that has to be traversed from loop 112 in order to apply the tourniquet 200, particularly when the tourniquet 100 is being applied around larger objects, such as legs. In these embodiments, the user can selectively choose which of the additional loops to feed end 106 through. It is also possible to have multiple passes go through loop 112 as well as one or more of the additional loops, (as well as to wrap the cord 102 around the entire object before or after feeding the cord 102 through the loop(s)), so as to increase the surface area of cord 202 applied to the object. Increasing the surface area applies additional pressure while minimizing potential tissue damage that could result from wrapping cord 202 around an object a single time.
In embodiments in which the cord 102 is wrapped around the object multiple times (entirely, or partially with the use of the loops), the length of the tourniquet cord 102 can be manufactured with an increased length (e.g., three or more feet).
Multi-Use Cleat
Cleat 304 further includes cord holes 322 that allow a cord to pass through the cleat 304 and to flexibly hold the cleat 304 in a desired placement relative to a limb or other item to which a cord being applied. Thus, cleat 304 may also be used for other clasping purposes, apart from application of a tourniquet. In such instances (e.g., for use in securing a rope of a tarp or other camping/outdoor equipment) the presence of holes 322 provides a similar “hold in place” benefit so that base end 303 is held against a desired surface. While the cord is enabled to freely slide through cord holes 322, cleat 304 is still held within a predetermined range of movement due to the fact that part of the cord is passed through one of cord holes 322. If one end of the cord includes a loop, this may prevent cleat 304 from being entirely removed from the looped end of the cord.
Although cleat 304 is shown including a single tooth 320 within each recess 318A and 318B, it will be understood that additional teeth may be present (e.g., similar to the cleat 104). Each recess 318A and 318B is depicted as including a rounded recess 319 at its end, adjacent stem 324. Circular recess 319 may be advantageously sized to accommodate the diameter of a round cord. Because of the inclusion of recesses 319 and teeth 320 (which are spaced apart so as to be near the opposite end of recesses 318A and 318B relative to rounded portion 319) a cord may be wrapped around stem 324 multiple times. When a cord is wrapped around stem 324 multiple times, teeth 320 and recessed areas 319 engage the cord at a plurality of points to hold the cord in place between rounded recess 319 and tooth 320.
Turning to
Cleat 404 further includes cord holes 422 that allow a cord to pass through the cleat 404 and to flexibly hold the cleat 404 in a desired placement relative to a limb to or other item to which it is being applied. Thus, cleat 404 may also be used for other clasping purposes, apart from application of a tourniquet. In such instances (e.g., for use in securing a rope of a tarp or other camping/outdoor equipment) the presence of holes 422 provides a similar “hold in place” benefit so that base end 403 is held against a desired surface. While the cord is enabled to freely slide through cord holes 422, cleat 404 is still held within a predetermined range of movement due to the fact that part of the cord is passed through one of cord holes 422. If one end of the cord includes a loop, this may prevent cleat 404 from being entirely removed from the looped end of the cord.
Although cleat 404 is shown including with a particular arrangement of teeth 420 within each recess 418A and 418B, it will be understood that additional teeth may configured and arrangement in any number of different ways. For example, the size, length, and spacing between each of teeth 420 can be varied to suit different applications. Each recess 418A and 418B is depicted as including a recess 419 at its end, adjacent stem 424. Recess 419 may be advantageously sized to accommodate a specified type of cord. Because of the inclusion of recesses 419 and teeth 420 a cord may be wrapped around stem 424 multiple times. When a cord is wrapped around stem 424 multiple times, teeth 420 and recessed areas 419 engage the cord at a plurality of points to hold the cord in place between rounded recess 419 and teeth 420.
Turning to
Cleat 504 further includes cord holes 522 that allow a cord to pass through the cleat 504 and to flexibly hold the cleat 504 in a desired placement relative to a limb to or other item to which it is being applied. Thus, cleat 504 may also be used for other clasping purposes, apart from application of a tourniquet. In such instances (e.g., for use in securing a rope of a tarp or other camping/outdoor equipment) the presence of holes 522 provides a similar “hold in place” benefit so that base end 503 is held against a desired surface. While the cord is enabled to freely slide through cord holes 522, cleat 504 is still held within a predetermined range of movement due to the fact that part of the cord is passed through one of cord holes 522. If one end of the cord includes a loop, this may prevent cleat 504 from being entirely removed from the looped end of the cord.
Although cleat 504 is shown including a single tooth 520 within each recess 518A and 518B, it will be understood that additional teeth may be present (e.g., similar to the cleat 104 or 404). Each recess 518A and 518B is depicted as including a recess 519 at its end, adjacent stem 524. Recess 519 may be advantageously sized to accommodate the diameter of a flat cord. Because of the inclusion of recesses 519 and teeth 520 (which are spaced apart so as to be near the opposite end of recesses 518A and 518B relative to recesses 519) a cord may be wrapped around stem 524 multiple times. When a cord is wrapped around stem 524 multiple times, teeth 520 and recessed areas 519 engage the cord at a plurality of points to hold the cord in place between rounded recess 519 and tooth 520.
As mentioned above, a cleat (e.g., cleat 104, 204, 304, 404, and 504) may be used for a variety of different applications. Cleats can be used to secure a cord for essentially any purpose, for example, securing a camping tarp cord or securing a cord for other camping, outdoor, or other activity.
Accordingly, embodiments of the invention include cord assemblies where a cord is wrapped around an arm, leg, or other object and secured within a multi-use cleat. A cord can be constructed from material that permits the cord to stretch when appropriate tension is applied. Stretching can facilitate locking locking/clasping a cord in place within a multi-user cleat.
In view of the foregoing, it will be appreciated that the present invention provides many different cord applications having one or more fixed loops. Various advantages of the invention should be apparent from the foregoing disclosure, including the increased utility of being able to secure a cord with a single hand (due to the configuration of the loops and cleats).
The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
This application is a continuation-in-part of U.S. patent application Ser. No. 12/642,247, filed Dec. 18, 2009, and titled “ONE-HANDED LOOP TOURNIQUET”, which claims priority to U.S. Provisional Patent Application Ser. No. 61/203,138 filed Dec. 19, 2008, titled “ONE-HANDED LOOP TOURNIQUET”, each of which are herein incorporated by reference in their entirety.
Number | Date | Country | |
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61203138 | Dec 2008 | US |
Number | Date | Country | |
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Parent | 12642247 | Dec 2009 | US |
Child | 12958913 | US |