Tourniquet Patents (Class 606/203)
  • Patent number: 5486194
    Abstract: This invention relates to a compressive hemostatic belt wherein a cup-shaped rigid case is attached by an attaching device to a predetermined position on a band made of non-stretchable or low-stretchable fiber, nonwoven fabric or film, and a balloon adapted to be inflated by being filled with fluid is received in the rigid case. Preferably, at least the portion of the band which corresponds to the leg when the band is wrapped around the body is shaped in curve form. Buckles may be attached to the opposite ends of the band and a buckle attaching plate may be attached to the rigid case. One end of the band may be provided with projections so that when the band is wrapped around the body, the other end of the band is thrusted on the projections to fix the band in position. If the band is made of adhesive material, more reliable fixing can be achieved. A check valve adapted to prevent fluid from flowing back from the balloon may be removably connected to the balloon to provide for reuse of the check valve.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: January 23, 1996
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Atsuko Kawasaki, Takefumi Nakashita, Yoshiharu Inui, Toshimichi Shirouzu
  • Patent number: 5451234
    Abstract: A friction fit fastening device in which a stretchable elongated strap applies radial tension to a body limb or the like to restrict blood flow or to secure objects to the body. The strap can be pulled taut to a desired tension and than held with a fastener when the strap is returned to its natural state. The strap is prevented from slipping because of friction applied to the strap by the fastener. The strap can be easily adjusted or removed by pulling on the strap which decreases the friction applied to the strap by the fastener.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: September 19, 1995
    Inventor: Paul Wassermann
  • Patent number: 5449379
    Abstract: A portable apparatus for the treatment of injuries includes a first layer of flexible material and a second layer of flexible material coupled to the first layer of flexible material to form an inflation chamber. A third layer of flexible material is coupled to the first and second layers so that a space is formed between the second and third layers. The space formed between the second and third layers is in fluid communication with the inflation chamber at an outlet and the space between the second and third layers is formed so that a fluid channel extends from a first end of the space between the second and third layers to the outlet. A plurality of spacer members maintain the separation between the second and third layers so that the fluid channel remains unobstructed even when the apparatus is folded or wrapped around an injured area.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: September 12, 1995
    Assignee: Alternative Compression Technologies, Inc.
    Inventor: Frederick B. Hadtke
  • Patent number: 5439477
    Abstract: Tourniquet apparatus for use in intravenous regional anesthesia and limb surgery includes a pressurizing cuff for substantially encircling a limb and applying a varying pressure to an underlying vein in response to variations in a pressure control signal, applied venous pressure sensing means for producing an applied venous pressure signal representative of a pressure applied by the cuff to the underlying vein, venous pressure estimation means for producing a venous fluid pressure signal representative of the pressure of fluid in the vein distal to the cuff, and pressure control means responsive to the venous fluid pressure signal and applied venous pressure signal for generating a pressure control signal to maintain a predetermined relationship between the applied venous pressure signal and the venous fluid pressure signal. The apparatus automatically controls the introduction, retention and release of anesthetic fluid in the limb.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: August 8, 1995
    Assignee: Abatis Medical Technologies, Ltd.
    Inventor: James A. McEwen
  • Patent number: 5425742
    Abstract: The present invention provides an apparatus and method for subjecting a body part to a vacuum, engorging blood veins and reducing neurophatic pain. The body part is inserted through a donut like inflatable seal which is attached to an opening in the cylindrical rigid hypobaric chamber. The seal is inflated and the chamber evacuated utilizing a single air pump. The seal pressure and chamber vacuum are controlled and adjusted using preset or adjustable pressure release valves.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: June 20, 1995
    Assignee: Patrick S. Quigley
    Inventor: Franklin W. Joy
  • Patent number: 5395306
    Abstract: A one-part bandage for the clavicle, with a back strap extending crosswise over the back, to which shoulder straps are connected which cross under the armpits and extend over a clavicle. The straps cross in the region of the middle of the back strap at the crossing place, and run out over the hips to the abdomen into connecting end parts, whereby the end parts are joined together by means of an adhesive seal. This configuration is made of non-elastic strap material. The shoulder straps are applied at places that are distanced from one another on the back strap on its side turned away from the back, whereby support places are each formed by an adhesive seal, whose adhesive part is introduced on the back strap and whose coating part completely covering the respective adhesive part is formed by the respective shoulder strap.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: March 7, 1995
    Assignee: Bauerfeind & Co.
    Inventors: Hans B. Bauerfeind, Rainer Scheuermann
  • Patent number: 5314437
    Abstract: A constricting device for body parts, has a housing, a clamping rocker supported in the housing rotatable between a clamping position in which one end of the clamping rocker clamps a band extending through the housing against a housing wall and an opposite releasing position in which it releases the band, so that the clamping rocker in a constriccting position of the band which is under tension is turned to the clamping position while a manual pressure applied to the clamping rocker turns the latter to the releasing position. A releasable arresting closure is provided between another end of the clamping rocker and an end of the band at the side of the housing, and a mechanical transmission member which during application of an actuating pressure to the clamping rocker first turns the clamping rocker to the releasing position and then after a release of the band opens the arresting closure.
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: May 24, 1994
    Assignee: Holtsch Metallwarenherstellung Inh. Maria Holtsch
    Inventor: Peter Holtsch
  • Patent number: 5312350
    Abstract: The present invention relates to a vein spotter which consists of a flexible band which has a buckle attached to one end and a hook and pile Velcro type of fastener mounted on a first surface. A plurality of protrusion members are mounted on the second surface of the band. The buckle and the hook and pile fastener allow the flexible band to be formed into a loop encircling a limb with the protrusion members pushing into skin, displacing tissue into spaces formed between the projecting members and causing superficial veins to distend and become visible.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: May 17, 1994
    Inventor: Andrew Jacobs
  • Patent number: 5304202
    Abstract: An elongated elastic cylindrical member joined at its opposite ends to form an annular member is provided. The annular member is designed for disposition about a body limb near the end thereof adjacent the torso and with the annular member circumferentially stretched and exerting a heavy radial inward pressure upon the limb at least substantially the full length of an elongated zone extending completely about the associated limb with the inward force of the annular member on the limb being sufficient to locally compress not only limb veins closely adjacent the skin surface but also arteries spaced further beneath the limb surface.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: April 19, 1994
    Inventor: Daniel A. Stahl
  • Patent number: 5295996
    Abstract: A tourniquet device is arranged for securement about a limb of an individual in cooperation with a major cardiovascular pressure point, wherein an elastomeric strap is securable at its ends having a semi-spherical projection mounted to a top surface of the strap for projection against the aforenoted pressure point. A modification of the invention includes adjustment structure for the projection to include an accessory projection, or alternatively an adjustable projection, mounted to the strap structure.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: March 22, 1994
    Inventor: Dean H. Blair
  • Patent number: 5282825
    Abstract: A surgical ligaturing and restraining device for small animals comprises an elongated tubular body member (10) having a noose (28) at the front end (18) operable from the rear end (12) of the body. The body front end is fitted with a cap (20) with two holes (22) (24) through its face. The noose is formed by a flexible and elastic cable (26), one end (25) of the cable is looped around passing through the holes in the cap. Said cable end (25) is attached to the cable itself around cable middle portion by attachment means (30). The cable runs through the inside of the body and emerges substantially from the body rear end (12). The body rear end has two short longitudinally extending slots (14) (16), each slot has one extremity open to the rear end. The slots are diametrically opposite each other, dividing the tubular body into two sides (32) (34). One side (32) is made shorter than the opposite side (34 ), so as to facilitate the locking action. The device is applied by placing the noose around an object.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: February 1, 1994
    Inventors: Kin C. Muck, Helen M. Chan
  • Patent number: 5234459
    Abstract: A distal forearm tourniquet and method of use therefor for providing a bloodless field during hand surgery is disclosed. The tourniquet includes an adjustable strap or cuff formed with an inflatable balloon on a portion thereof. In use, the tourniquet is placed with the balloon on the dorsal aspect of the forearm between the middle and distal 1/3 and securely tightened to restrict blood flow. In fixed position, the inflatable balloon is located against the dorsal aspect of the forearm and inflated to a desired pressure. The resulting application of the pressure exerted on the dorsal aspect by the balloon and indirect pressure on the volar aspect of the forearm restricts blood flow through the radial and ulnar arteries and the anterior and posterior interosseous arteries.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: August 10, 1993
    Inventor: Hans Lee
  • Patent number: 5219356
    Abstract: A disposable tourniquet comprising an elongated, flat, stretchable band. The band has a pressure-sensitive adhesive face on one side of the band at one end, and a release agent on the same face of the band but spaced from the adhesive face. The tourniquet is stored with the adhesive face folded against and adhering to the release agent, and is deployed by peeling the adhesive face away from the release agent, wrapping the tourniquet about the arm and pulling it sufficiently tight, and then adhering the adhesive face to the outside surface of the band to hold the tourniquet in place.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: June 15, 1993
    Assignee: Sage Products, Inc.
    Inventors: Donald R. Harreld, Barbara T. Skiba
  • Patent number: 5201758
    Abstract: A tourniquet cuff for reducing blood flow in a patient's limb includes a backing plate having an inner and outer side. A flexible covering having an inner and outer side is also provided. The flexible covering is formed to be substantially more pliable than the backing plate. The backing plate and the flexible covering are attached to each other to define an inflation cavity between the inner side of the backing plate and the inner side of the flexible covering. An inflatable bladder is positioned in the inflation cavity and the tourniquet is secured about a patient's limb with the outer side of the flexible covering in contact with the patient's limb.
    Type: Grant
    Filed: January 7, 1992
    Date of Patent: April 13, 1993
    Assignee: Boehringer Mannheim Corporation
    Inventor: Dennis Glover
  • Patent number: 5181522
    Abstract: A tourniquet system comprising: an inflatable occlusive band for encircling a limb of a subject and for inflating to apply pressure to the encircled limb to occlude blood flow into the limb distal to the band, wherein an inner surface of the band faces the limb; inflation pressure regulation means responsive to a variable inflation pressure regulation signal for regulating the pressure to which the occlusive band is inflated and for producing an inflation pressure signal representative of the pressure to which the band is inflated; applied pressure sensing means located at a predetermined location fixed relative to the band for producing an applied pressure signal representative of the pressure applied by the inflated band to the limb in a direction normal to inner surface of the band at the predetermined location; and pressure-regulating means responsive to the applied pressure signal for producing an inflation pressure regulation signal to maintain the pressure applied by the inflated band to the limb at th
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: January 26, 1993
    Assignee: Abatis Medical Technologies Limited
    Inventor: James A. McEwen
  • Patent number: 5152770
    Abstract: An implantable device for occluding a body duct, especially a blood vessel. The device includes a flexible, elongate plate to be fixed around the duct, a plurality of communicating bulbs which are arranged on one side of the plate and have a variable volume, and a connection for supplying fluid to the bulbs for occluding the duct and for evacuating fluid from the bulbs to open the duct after the occlusion. The flexible plate has a perforation at one end and a locking member in the form of a thickened portion at the other end. The locking member is passed through the perforation for safely fixing the device around the body duct.To improve the occlusive function of the device, the bulbs may be made of an elastic material, the thickness of which is smallest at the tops of the bulbs.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: October 6, 1992
    Assignees: AB Hepar, Surg Develop AB, AB Nolato
    Inventors: Stig Bengmark, Bo Persson
  • Patent number: 5139512
    Abstract: The present invention is a semiautomatic compress which performs the function previously performed by a nurse exerting 30 pounds of pressure with her hand on a patient after insertion of a tube into a patient's artery, followed by compression by a sand bag for about ten hours. The compress comprises belts coupling it to the patient, and a calibrated ratchet controlled clamp which exerts a selected force on the wound of the patient for about ten hours while the blood of the patient clots at and near the wound.
    Type: Grant
    Filed: October 18, 1990
    Date of Patent: August 18, 1992
    Inventors: Leo D. Dreiling, deceased, by Marilyn Dreiling, heiress
  • Patent number: 5121954
    Abstract: A closure for a band and the like comprises a closure housing adapted for passing a band therethrough, a housing cap adapted to be connected to an end of the band, and elements for releasably connecting the closure housing with the housing cap. The connecting elements include a pin projecting from the closure housing and having a front end with two oppositely inclined surfaces and two transverse grooves, and two sliders accomodated in the housing cap slidingly over one another and each having a projection and a shaped formation facing toward one another and formed so that in a locked condition the projections of the sliders of the housing cap engage in the grooves of the pin of the closure housing while the shaped formations of the sliders of the housing cap abut against the inclined surfaces of the pin of the closure housing.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: June 16, 1992
    Assignee: Holtsch Metallwarenherstellung
    Inventor: Peter Holtsch
  • Patent number: 5120300
    Abstract: A compression band including male and female connectors and a length of compression band integrally connected to one of the connectors so that the compression band can be quickly and easily applied and removed by preassembling the male and female connectors so that the preassembled compression band can be encompassed about a body, limb or object and fastened in place by adhering inner fastening surfaces of the preassembled connectors to the outer fastening surface of the compression band. The desired tension can then be applied by separating free ends of the connectors, tensioning the band and reapplying the free ends against the outer fastening surface of the band.
    Type: Grant
    Filed: November 16, 1990
    Date of Patent: June 9, 1992
    Inventor: Frank D. Shaw
  • Patent number: 5084062
    Abstract: A device for ligaturing parts of the body comprises a flat strap (15) of elastic material in the form of a loop (35) and a buckle attached to the latter comprising a clamping part (1) and a releasing part (2). The clamping part comprises a basic element (29) which forms a basic supporting and guiding surface (39) in the longitudinal direction of the strap (15) and has lateral faces between which the strap passes and which have locking elements ensuring a releasable connection between the clamping part (1) and the releasing party (2). The latter is connected to one end (22) of the strap, has locking elements which releasably connect it to the clamping part (1) and a clamping region (3) at the end opposite the loop (35) whose distance from the surface (39) is located in the region of the thickness of the released strap (15) when the strap buckle is assembled. When the strap buckle is assembled, the locking elements form a pivoting joint.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: January 28, 1992
    Inventor: Martina E. Sturm
  • Patent number: 5074873
    Abstract: A disposable tourniquet is disclosed which includes a tubular component consisting of a diagonally interwoven fibrous material fabric of vegetable, synthetic or mixed type and, when desired, of an elastic component.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: December 24, 1991
    Inventor: Francesco S. Dioguardi
  • Patent number: 5048536
    Abstract: A tourniquet comprising: (a) an occlusive band for encircling a limb of a subject and for applying pressure to the limb wherein an inner surface of at the band faces the limb; and applied pressure sensing means located at a predetermined position on the inner surface of the band for producing an indication of the pressure applied by the band to the limb near the predetermined location. The applied pressure sensing means is comprised of material having a degree of flexibility and physical dimensions selected so that the sensing means conforms closely to the surface of the occlusive band and does not substantially displace the surface of the limb away from the band surface.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: September 17, 1991
    Inventor: James A. McEwen
  • Patent number: 5015251
    Abstract: A medical fastener strap for engaging the body has an elongated stiff strip of resilient engaging members on one side and a mating and overlapping elongated softer strip of material on a second side carrying coacting engaging members for coacting with the first strip. The strap is wrapped about a body member and overlapped at its ends to form a Velcro-type fastener. Parallel edges of the softer strip extend over and beyond edges of the stiffer strip and are positioned adjacent the body to cushion and protect the body from the stiff strip in use.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: May 14, 1991
    Assignee: AliMed, Inc.
    Inventor: Julian H. Cherubini
  • Patent number: 4957105
    Abstract: An improved femoral arterial or venous compressive device includes a flexible pelvic apron positioned over the femoral vessels within the human pelvis. The pelvic apron is placed in position by means of a hip strap. The hip straps are led from the pelvic apron upwardly over the hip points, around the small of the back and down over the opposing hip point back to the pelvic apron. The pelvic apron thus hangs from the hip points of the pelvis much like an apron. A shaped mass or pellet is attached to the under side of the pelvic apron over the incision site of the femoral vessel. An elastically extensible groin strap is then attached to the pelvic apron in the proximity of the shaped mass and drawn tighly through the groin, around the back of the leg, under the buttocks and back upwardly to the pelvic apron in the proximity of the shaped mass. As a result, the tensile force is applied by the groin strap across the pelvic apron up to the hip point and also around the leg.
    Type: Grant
    Filed: October 4, 1988
    Date of Patent: September 18, 1990
    Inventor: Paul A. Kurth
  • Patent number: 4911162
    Abstract: A tourniquet for restricting the flow of blood to and from a limb of an individual when assembled thereon, the tourniquet having a flexible and resilient elongated member and a tourniquet securing member fixedly secured to one end of the flexible and resilient elongated member and having an aperture therethrough to receive a second end of the elongated member once the elongated member is wrapped about the limb of an individual so that the second end of the elongated member can be pulled against the inner peripheral surface of the aperture causing the tourniquet securing member to bear against the individual's limb and the tightening of the elongated member about the limb so as to enlarge and expose the veins or veinlets of the limb. The tourniquet securing member includes a cavity at one end to receive the elongated member wherein the cavity has gripping teeth therein to fixedly grip the flexible and resilient elongated member.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: March 27, 1990
    Inventor: Stephen H. Wolff