|Publication number||US3901225 A|
|Publication date||Aug 26, 1975|
|Filing date||Jan 2, 1974|
|Priority date||Jan 2, 1974|
|Publication number||US 3901225 A, US 3901225A, US-A-3901225, US3901225 A, US3901225A|
|Inventors||Jerry W Sconce|
|Original Assignee||Jerry W Sconce|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (9), Referenced by (96), Classifications (14)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent 11 1 Sconce [4 1 Aug. 26, 1975 1 1 INFLATABLE SPLINT  Inventor: Jerry W. Sconce, 906 E. Northridge St., Glendora, Calif. 91740  Filed: Jan. 2, 1974  Appl. No.: 430,243
 US. Cl 128/89 R; 128/402; 128/D1G. 2O  Int. Cl. A6lf 5/04  Field of Search 178/89, 87, 402, 399, 400, l78/D1G. 20
 References Cited UNITED STATES PATENTS 2,403,676 7/1946 Modlinski 128/402 X 2,699,165 1/1955 Fcrricr l28/D1G. 20 3,074,398 1/1963 Guiney l28/D1G. 20 3,338,237 8/1967 Sconcc.... 128/87 3,351,055 11/1967 Gottfried 128/87 3,424,151 1/1969 Ericson 128/87 3,561,435 2/1971 Nicholson 128/402 X 3,628,537 12/1971 Bcrndt et a1. 128/402 3,717,145 2/1973 Berndt Ct 111, 128/402 X Primary Examiner-Richard A. Gaudet Assistant Examiner-.1. Yasko Attorney, Agent, or Firm-Christie, Parker & Hale 5 7 ABSTRACT An inflatable splint includes overlying flexible inner and outer sheets sealed around their peripheral edges to form a fluid impervious, air inflatable bladder. A plurality of spaced apart pockets on the inner sheet of the bladder may contain therapeutic substances, such as hot or cold compresses, chemical cold packs, ice packs, or the like which are removably placed in se lected ones of the pockets for treating an injured extremity of a user. The bladder is placed around the injured area of the users extremity so that the therapeutic substances contained in the pockets overlie the injured area. The bladder can be attached to the user in a variety of configurations by releasable fasteners such as tabs containing one type of Velcro material spaced around one half of the bladder outer edge, and spaced apart sections of a cooperating type of Velcro material located along the other half of the bladder outer edge. The bladder is inflated to immobilize the injured extremity and to force the therapeutic substances into pressure contact with the injured area. A pair of fluid inlets on opposite sides of the bladder outer sheet enable the user to apply the splint to either arm and still he in position to inflate the splint.
7 Claims, 3 Drawing Figures PAIENTEnAutzsirs SHEET 2 [IF 2 l INFLATABLE SPLINT BACKGROUND This invention relates to inflatable splints, and more particularly to a splint for immobilizing an injured extremity and concurrently applying thermal pressure to an injured area of the immobilized extremity.
Inflatable splints generally include a bladder which is releasably secured around an injured arm or leg and then inflated to stiffen it so it will support the injured extremity. An inflatable splint also can act as a tourniquet by restricting the flow of blood to the injured area in accordance with the amount of pressure it exerts.
Recently, some inflatable splints have been combined with a second bladder which contains crushed ice or the like to be held around the injured arm or leg when the adjoining air-filled bladder of the splint is inflated. Such thermal pressure applying inflatable splints are described, for example, in US. Pat. No. 3,548,819 to Davis et al. and US. Pat. No. 3,561,435 to Nicholson. Generally speaking, the cooling medium in such splints is used to reduce'swelling or pain while the injured extremity is being temporarily immobilized. However, the splints disclosed in these patents are of limited anatomical use, and they also limit the type of cooling or heating media which can be used as well as the manner in which the cooling or heating medium is applied to the injured area.
SUMMARY This invention provides an inflatable splint capable of applying thermal pressure "to an injured area of a patient's body. The splint can be applied in a large number of configurations throughout the body, such as at the shoulders, elbows, knees, neck, and ankles, as well as the arms and legs of the patient. The splint also can be used to apply a variety of cooling or heating media as well as being able to easily vary the area of contact between the cooling or heating medium and the patients body depending upon the location and extent of the injury. Thus, the inflatable splint provided by this invention is an improvement over the pneumatic splint disclosed in my U.S'. Pat. No. 3,338,237.
Briefly, the splint of this invention in its preferred embodiment includes an inflatable bladder having inner and outer walls made ofa fluid impervious, flexible material and sealed around its peripheral edges to form a hollow interior for use in holding a supply of fluid in the bladder. A plurality ofspaced apart pockets cover a major portion of the bladder inner wall. The pockets have respective openings in them for permitting separate thermal swelling retardant substances such as cold compresses or chemical cold packs, or any other therapeutic treatment medium to be removably inserted in selected ones of the pockets.
Fastening means secured to the peripheral edges of the bladder releasably attach opposite portions of the bladder to hold the bladder around the injured area of an extremity of a patient so that one or more pockets which contain the thermal treatment medium can be placed against the injured area. Fluid inlet means opening through the outer wall of the bladder admit a supply of fluid under pressure to the interior of the bladder to inflate it so as to substantially immobilize the injured extremity and also to force the thermal treatment media contained in the pockets into pressure contact with the injured area.
In a preferred form of the invention, a pair of fluid inlets on opposite sides of the bladder outer wall enable the patient to apply the splint to either arm and still be in position to inflate the splint. Moreover, the bladder can be attached to the patient in a variety of configurations by releasable fastening means which preferably include a series of spaced apart tabs containing a first type of Velcro material spaced around substantially one-half of the bladder outer edge, and spaced apart sections of a cooperating type of Velcro material located around the other half of the bladder. The fasteners are spaced around the entire outer periphery of the bladder and are located so as to leave gaps around the outer edge of the folded bladder when they are fastened. This enables various portions of a patients different extremities to pass through the gaps, thereby accommodating the various extremities of the patients body in various angular configurations so the area of pressure contact between the thermal treatment medium and the patients body can be easily varied in ac cordance with the location and extent of the patients in ury.
DRAWINGS These and other aspects of the invention will be more fully understood by referring to the following detailed description and the accompanying drawings, in which:
FIG. 1 is a plan view showing the pneumatic splint of this invention in flat form;
FIG. 2 is a perspective view showing the splint of FIG. 1 in the process of being attached to an injured extremity of a patient; and
FIG. 3 is a cross-sectional elevation view showing the splint in its inflated condition applying a thermal-type therapeutic medium to the extremity of the patient.
DESCRIPTION Referring to FIG. 1, an inflatable splint 10 comprises an inflatable bladder made from overlying inner and outer sheets l2 and 14, respectively, of a flexible, fluidimpervious material such as crystal clear polyvinyl or polyethylene sheeting. In a preferred form of the invention, the overall shape of the bladder in its flat form is tapered toward one end and preferably is trapezoidal in shape as shown in FIG. 1. The bladder thus defines a pair of nonparallel spaced apart longitudinal edges 16 which are intersected by a pair of spaced apart and par allel short and long lateral edges 18 and 19, respectively. The peripheral edges of the bladder are sealed by a heat seal seam 20 which is continuous around the trapezoidal outer periphery of the bladder to form a fluid-tight hollow interior of the bladder.
Fasteners formed along the longitudinal and lateral edges of the bladder provide means for releasably se curing the bladder in a variety of folded configurations so that the bladder can surround various areas of any extremity of a patient which may become injured, such as a patients shoulders, elbows, knees, neck, ankles, as well as his arm and leg. The fasteners include a series of longitudinally spaced apart, flexible tabs 22 preferably formed from the polyvinyl or polyethylene sheeting, along one longitudinal edge of the bladder. A separate section of Velcro hook material 24 is secured to each tab 22. A series of similarly shaped flexible spaced apart tabs 26 project outwardly along the left half of the short lateral edge 18 of the bladder, and a separate section of Velcro hook material 30 is secured to each tab 26. Similarly, a series of spaced apart tabs 32 are formed opposite tabs 26 along the left half of the long lateral edge 19 of the bladder, and respective sections 34 of Velcro hook material are secured to tabs 32. Velcro hook material sections 24, 30 and 34 are secured to their corresponding tabs in an upwardly facing direction when the inner sheet 12 of the bladder faces upwardly as in FIG. 1.
A series of longitudinally spaced apart sections 36 of Velcro pile material are secured along the longitudinal edge 16 opposite the edge where tabs 22 are formed. Each Velcro section 36 is aligned opposite a corresponding tab 22 and is secured to the outer sheet 14 of the bladder (facing away from the view in FIG. 1) so that tabs 22 can be folded over the longitudinal edge on the opposite side of the bladder to releasably engage their corresponding Velcro pile sections.
A series of spaced apart sections 38 of Velcro pile material are fastened along the right half of lateral edge 18, the spacing between Velcro sections being identical to that for Velcro tabs 26. Similarly, a second series of spaced apart sections 40 of Velcro pile material are secured along the remaining half of the lateral edge 19, the spacing between Velcro sections 40 being identical to that between tabs 32. Velcro sections 38 and 40 are secured to the outer sheet 14 of the bladder, so they can be releasably attached to their corresponding Velcro sections 30 and 34 when the bladder is folded along its centerline into a position in which the bladder can be wrapped around an injured extremity, as shown in FIG. 2.
A third sheet 42 of flexible fluid-impervious material such as crystal clear polyvinyl or polyethylene sheeting overlies inner face 12 of the bladder. Sheet 42 is bonded to the inner sheet of the bladder so as to form a plurality of spaced apart pockets covering a major portion of the inner sheet 12 of the bladder. Preferably, a row of three pockets 44 is formed along the half of the bladder where the Velcro fastener tabs are located, and a second row of three pockets 46 is located on the other half of the bladder. Sheet 42 preferably is bonded to inner sheet 12 by parallel heat seals 48 which form the sides of the three pockets, and by heat seals 50 along the centerline of the bladder for forming the bottoms of the three pockets. Similarly, pockets 46 are formed by parallel heat seals 52 which form the sides of the three pockets, and by heat seals 54 along the centerline adjacent heat seals 50 for forming the bot toms of pockets 46. Pockets 44 have corresponding openings 56 located adjacent one longitudinal edge of the bladder, and pockets 46 have corresponding openings 58 located along the other longitudinal edge 16 of the bladder. Preferably, the open tops of pockets 44 and 46 are releasably closed by corresponding molded plastic zippers 59 (see FIG. 3), although other means can be used to provide a releasable, substantially fluidtight closure for the tops of the pockets.
A pair of filler valves 60 open through opposite halves of the outer sheet 14 of the bladder. Each valve preferably includes a screw cap fitting 61 (shown in FIG. 3) which can be turned manually to either open or close the fluid inlet port through the valve so as to admit gas under pressure to the interior of the bladder. Separate elongated hose extensions 62 are connected to the threaded fittings 61 of the filler valves.
FIGS. 2 and 3 illustrate the use of inflatable splint I0. Pockets 44 and 46 provide means for applying either hot or cold treatment to an injured area of the patients body. For example, separate chemical cold packs 63, 64 can be removably placed in the pockets on opposite sides of the splint to counteract swelling and/or restrict blood flow from the injured area. Alternatively, cold or hot compresses, ice packs, or the like, can be inserted in selected ones of the pockets. The molded plastic zippers 59 at the open tops of the pockets provide a substantially fluid-tight releasable closure when crushed ice or other fluids are disposed in the pockets. The separate openable and closable pockets also allow cold or hot treatment to be applied in a variety of forms, and they also provide means for quickly and easily controlling the configuration and area of coverage in which the hot or cold treatment is applied in accordance with the location and extent of the patients injury.
Once the appropriate hot or cold treatment medium is placed in the pockets of the bladder, the bladder is then folded so it can be wrapped around the injured extremity, such as a patients arm 66 illustrated in FIGS. 2 and 3. The bladder is folded so that the tabs on the left half of the bladder can be folded over the opposite outer edges along the right half of the bladder to releasably attach certain of the Velcro fasteners to each other depending upon the portion of the patients body to which the splint is being applied. The fasteners are spaced apart so that gaps can be provided at certain locations along the three outer edges of the bladder remote from the folded portion thereof for allowing passage of the injured extremity. For example, in the application illustrated in FIG. 2, gaps can be left to accommodate the upper arm and front forearm of the patient. Since the fasteners are spaced along each of the three overlapping edge portions of the folded bladder, the edge portions which remain between the gaps can be releasably sealed to hold the splint snugly in place on the patients arm and to reduce as much as possible any loss of thermal energy to the exterior of the closed splint.
After the splint is in place on the patients arm, the bladder is inflated by admitting air through either or both of the filler ports to stiffen the bladder so as to temporarily immobilize the injured extremity. After the desired amount of gas pressure is admitted to the bladder, the appropriate filler valve is closed to retain the desired amount of pressure. The air not only immobilizes the injured extremity, but the air pressure in the bladder also can be varied to regulate blood flow, which then allows the splint to act as a tourniquet.
Thus, the inflatable splint of this invention combines the restrictive properties of the conventional inflatable splint with the capability of applying a variety of different thermal treatment media in a large number of conflgurations to an injured area of any of the patients ex tremities which are subject to injury.
1. An inflatable therapeutic splint comprising an inflatable bladder having inner and outer walls made ofa fluid-impervious, flexible, foldable material and sealed around the peripheral edges thereof to form a hollow interior for receiving and holding therein a supply of inflation fluid under pressure, the bladder having a pair of opposed longitudinal edges extending along the length of the bladder, the bladder being foldable on itself centrally of the longitudinal edges for substantial registration of the longitudinal edges, the bladder when so folded being elongated in a direction along the longitudinal edges,
a plurality of pockets secured to the inner wall of the bladder, the pockets having respective openings thereinto for permitting separate thermal treatment media such as cold or hot compresses, ice packs, or the like to be removably inserted in selected ones of the pockets, the pockets being arranged on the bladder in at least three rows spaced apart along the elongate extent of the bladder with each row extending transversely of the elongate extent of the bladder,
cooperating fastening means secured to the opposite longitudinal edges of the bladder and extending along the length thereof for releasably attaching the opposite longitudinal edges of the bladder when folded to each other to hold the bladder around an extremity of a user with the elongate extent of the bladder aligned with the length of the extremity so that the three rows of pockets are disposed in series along the length of the extremity, and
fluid inlet means opening through the outer wall of the bladder for admitting inflation fluid under pressure to the interior of the bladder to inflate it when folded around a users extremity to substantially immobilize the extremity and to force the three rows of pockets into thermal pressure contact with the extremity.
2. Apparatus according to claim 1 including means for releasably closing the opening in each pocket.
3. Apparatus according to claim 1 in which the peripheral edges of the bladder include a pair of opposite lateral edges intersecting the longitudinal edges thereof to form a bladder which, in flat form, is divided into right and left halves, and including a first type of fastening means extending around the peripheral edge of the right half of the bladder, and a second type of fastening means for releasably attaching itself to the first fastening means and extending around the peripheral edge of the left half of the bladder.
4. Apparatus according to claim 3 in which the first fastening means are spaced apart along one longitudinal edge and substantially half of each lateral edge on a right half of the bladder and are arranged for cooperation with corresponding spaced apart second fastening means on a left half of the bladder so that releasable engagement of the corresponding first and second fastening means will maintain the right and left halves of the bladder in an overlying relation for fitting around the extremity.
5. Apparatus according to claim 1 in which each pocket has a closure for providing a releasable fluidtight seal.
6. Apparatus according to claim 1 including a pair of side-by-side pockets in each row of pockets on the bladder.
7. Apparatus according to claim 1 wherein each row of pockets extends substantially entirely transversely of the elongate extent of the bladder.
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|U.S. Classification||602/13, 607/112, 128/DIG.150, 128/DIG.200|
|International Classification||A61F5/058, A61F7/10, A61F7/02|
|Cooperative Classification||A61F2007/0091, Y10S128/15, A61F7/106, A61F7/02, Y10S128/20, A61F5/05816|