SELF-APPLIED PNEUMATICALLY ACTUATED PRESSURE

• US 3,713,446 A
• Filed: 03/17/1971
• Issued: 01/30/1973
• Est. Priority Date: 03/17/1971
• Status: Expired due to Term

• Current Assignee: Stanley J. Sarnoff
• Original Assignee: Stanley J. Sarnoff
• Inventors: Sarnoff, Stanley J.
• Primary Examiner(s): Pace, Channing L.
• Application Number:
  US05/125,207
• Time in Patent Office: 685 Days
• Field of Search: 24/16R,23B,245R,265AL 128/327
• US Class Current: 606/202
• CPC Class Codes: A61B 17/135 inflatable for measuring blood pressure A61B5/022; inflatable pressure pads A61F5/34
• CPC Class Codes: Y10T 24/14 Bale and package ties, hose clamps
• CPC Class Codes: Y10T 24/4764 Ring-loop

Abstract

A self-applied pneumatically actuated pressure bandage adaptable for use as a compression bandage, tourniquet or cuff wherein the pressure is applied by a manually operated pump, and is controlled by an adjustable regulator.

Claims

1. A Pressure actuated bandage adapted for application around a body portion and fluid pressure applied to a dressing to force it into contact with the specific body location, said bandage comprising a dressing assembly, said dressing assembly including an inflatable bladder, spring means mounted on one face of the bladder to resiliently retain said bladder in a semicircular configuration with said spring means being on the outer bladder face, a dressing affixed to the inner face of the bladder, a flap connected to one longitudinal end of the dressing assembly, a draw bar assembly secured to said flap, said draw bar assembly comprising a U-shaped body portion having a pair of generally parallel legs forming an opening transverse to the length of the bandage, a locking wedge adapted to fit down into the draw bar opening and frictionally engage the confronting portions of the two draw bar legs, a band secured to and extending from the other end of the dressing assembly whereby when the dressing assembly is placed around a body portion the band may be passed through the opening in the draw bar so that tension may be applied to the band to tighten the dressing over the body portion and then the locking wedge may be forced into the draw bar opening to lock the band in place, and pressure means connected to the bladder to inflate said bladder and force the dressing into pressure contact with the specific body portion.

2. The invention as described in claim 1 and wherein the flap comprises an open ended pocket transverse to the length of the dressing assembly for receiving one of the legs of the draw bar to hold the bar in relation to the dressing assembly.

3. The invention as set forth in claim 2 and wherein a flap portion extends outwardly from the open-ended pocket and is of sufficient length to extend completely across and cover the opening in the draw bar to protect the patient'"'"''"'"'s body portion directly therebeneath when the bandage is in use.

4. The invention as set forth in claim 3 and wherein the flap portion has a cut away portion immediately adjacent the open end of the draw bar to facilitate introduction of the band into the draw bar opening.

5. The invention as set forth in claim 2 and wherein each of the draw bar legs taper from both sides toward the end to provide an end portion of somewhat pointed shape.

6. The invention as set forth in claim 5 and wherein the confronting portions of the tapered ends of the draw bar are each provided with a reversely turned finger which is spaced from the corresponding end portion to form a slot therebetween to receive the edge of the band in one slot and the edge of the draw bar pocket in the other slot whereby both the band and flap are retained in position on the draw bar.

7. The invention as set forth in claim 1 and wherein the locking wedge comprises a body portion terminating in a tapered head portion sized to snugly fit down between the confronting faces of the draw bar legs, and means attached to said body and the draw bar body tO mount the locking wedge thereon.

8. In a securing band and draw bar assembly wherein a securing band has a loop at one end and a free end at the other extremity and the assembly is adapted for wrapping and securement around a body member, said draw bar comprising a U-shaped body having parallel legs forming an opening therebetween, each of the draw bar legs tapering inwardly from both sides toward the open end to provide end portions of somewhat pointed shape, the confronting portions of the tapered ends each having a reversely turned finger which is spaced from the corresponding tapered end to form a slot therebetween, a locking wedge secured to the body portion and being sized to snugly fit down in between the confronting sides of the two legs whereby when the band loop is passed over one of the legs and the free end of the band encircles the member to be held together thereby, the free end of the band is then passed through the draw bar opening and around the other draw bar leg whereupon tension is applied to the free end and the locking wedge is forced down into the opening to retain the band in fixed position.

9. The invention as set forth in claim 1 and wherein the pressure means includes a manually operable pump and an adjustable pressure regulator having control means with cooperating indicia to indicate high pressure, exhaust and intermediate pressures whereby the control means may be set to the minimum pressure for the stopping of bleeding so that when exhausting is done the control means may be returned to the aforesaid minimum pressure setting.

10. The invention as set forth in claim 1 and wherein the pressure means includes a manually operable pump and an adjustable pressure regulator comprising a body connected to the pump, a one-way valve in the body controlling flow from the pump, an outlet in the body directing air flow from the body to the bladder, an adjustable valve assembly in the body in communication with the pressure in the bladder, said valve assembly comprising a valve in communication with the pressure in the bladder, a spring biasing the valve to closed position, dual cam means for controlling pressure applied to the valve through said spring to control pressure of air in the bladder.