WO1989012797A1 - Systeme de blindage pour gants de protection et autres - Google Patents

Systeme de blindage pour gants de protection et autres Download PDF

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Publication number
WO1989012797A1
WO1989012797A1 PCT/US1988/002052 US8802052W WO8912797A1 WO 1989012797 A1 WO1989012797 A1 WO 1989012797A1 US 8802052 W US8802052 W US 8802052W WO 8912797 A1 WO8912797 A1 WO 8912797A1
Authority
WO
WIPO (PCT)
Prior art keywords
discs
projections
elastomer
disc
projection
Prior art date
Application number
PCT/US1988/002052
Other languages
English (en)
Inventor
J. Paul Jones
Original Assignee
Jones J Paul
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jones J Paul filed Critical Jones J Paul
Priority to PCT/US1988/002052 priority Critical patent/WO1989012797A1/fr
Publication of WO1989012797A1 publication Critical patent/WO1989012797A1/fr

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H1/00Personal protection gear
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B42/00Surgical gloves; Finger-stalls specially adapted for surgery; Devices for handling or treatment thereof
    • A61B42/10Surgical gloves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B42/00Surgical gloves; Finger-stalls specially adapted for surgery; Devices for handling or treatment thereof

Definitions

  • FIGURE shows a cross sectional view through a row of pro ⁇ jections from a base sheet of elastomer material.
  • the projec ⁇ tions are retaining metal discs at alternating levels, while also extending above the metal disc surfaces, to provide fric ⁇ tion to the object that is being contacted.
  • FIGURE 1A shows a detail of the mounting hole in an individ ⁇ ual metal disc, with the bottom conic entry and the sharp edge on top to impale the elastomer projection.
  • FIGURE 2_ shows a hypodermic needle attempting to pass thru the center aperture of an armor disc.
  • FIGURES 3A AND 3_b show a lateral view of a section of the armored base material, looking straight in on the round ends of the retaining projections. Every other row has metal discs at one level; and each alternate row has similar discs at a second overlapping level.
  • Figure 3B shows the projections only; actual size.
  • FIGURE 4 shows how the metal discs form a metal shield to the cutting edge of a scalpel blade, even though individual elas ⁇ tomer projections may be cut during an accidental slip of the scalpel; as shown.
  • FIGURE 5 shows the compliance or tolerance provided in the assembly of the discs, which allows complete flexibility of the armored material, but will still not permit entry of a typical hypodermic needle at the intersection of the discs.
  • FIGURE 6 shows a finger tip section of an armored glove; with a representation of the distribution of pressure to the finger tip through the individual projections, when contacting an external object.
  • FIGURE 1 shows an enlarged section of an individual elastomer projection, with pressure lines to indicate the distribution of pressure when being transferred through an armoring disc.
  • the sheet elastomer Base 1 can represent a form-fitting surgeons glove, which can have a thick ⁇ ness of .010 to .020 inch rubber.
  • the round ended Projections 2 are approximately .032 inch in diameter and .032 inch high, and are spaced on a grid that is , in proportion, .070 inch square.
  • the typical Armor Disc 3 or 4 is .093 inch in diameter, and has a center hole that is .026 inch in diameter; and is approximat ⁇ ely .003 to .004 inches thick.
  • the Hole 8 in the impaled metal Disc 4 is approximatel the same size as the smallest hypodermic needles, (i.e. approximately .026 inch in diameter) Therefore, it is impossible, without extraordinary force, to drive a Needle 7 through the Hole 8 and the Elastomer Projection 2; since there is no room for the projection to expand and ac- comodate the extra volume of the Needle 7.
  • Figure 2 where the parts that have been referred to are shown to scale.
  • Figure 3 shows the basic elements of the armoring system as they would be layed out with the proportions and the measure ⁇ ments that have already been given; on a scale of ten to one.
  • a small actual size matrix of just the elastomer projections is shown in Figure 3B; to keep the diminutive nature of the armor ⁇ ing system in perspective.
  • Both the assembly and retention of the individual Armor Discs 2 makes use of a special property of some elastomers.
  • rubber-!ike materials may be squeezed or pinched by relatively sharp edges and bounce back without show ⁇ ing any particular signs of stress.
  • the sharp edges are allowed to remain in place for a length of time, the compressed elastomer will begin to cold flow around the high pressure points along sharp edges, making it virtually inpos- sible to move the sharp edged object along the surface of the elastomer.
  • elastomers that becomes useful in assembly, is the elastomers preference for water as a lubricant; which can be used in the assembly process, without fear of residue or secondary effects on the elastomer.
  • Figure 1A shows an enlarged representation of a single Elastomer Projection 2 and Armor Disc 3 ; with the cold flow of the elastomer over the upper and lower edges of the Disc Apei— ture 8.
  • Figure 1A shows an enlarged representation of a single Elastomer Projection 2 and Armor Disc 3 ; with the cold flow of the elastomer over the upper and lower edges of the Disc Apei— ture 8.
  • the design of the sharp "chisel like" upper edge of the Disc Aperture 8B will tend to hook into the elastomer projections when forcibly moved upward.
  • FIG 4 the edge of a scalpel Blade 10 is shown crossing the surface of the Armor Discs 3. It is obvious that the Blade 10 may cut through one or more of the elastomer Projections 2; however, the Blade 10 will not be able to pene- rate the Armor Discs 3 ; and the slicing of the elastomer Pro ⁇ jections 2 will not cause release of the Armor Discs 3, or cause them to cease to function.
  • the basic design of the Armoring System provides for sub ⁇ stantial tolerances for both the placement of the elastomer pro ⁇ jections 2 and the size of the Armor Discs 3 and 4; which can be at least 5% of the dimensions used.
  • This degree of worst case tolerance is depicted in Figure #5 , which shows the intercept point of each quad of discs, where the 5* tolerance could allow a .005 inch Space 11.
  • a small .025 diameter hypodermic needle is shown in exact proportion, and in position to attempt a pene ⁇ tration between the stainless steel Discs 3 and 4, in the disc compliance Space 11. It is obvious that the needle could not penetrate to the hand of the wearer.
  • FIGURE 6 is a representation of a finger tip Section 13 of a rubber finger cover, which utilizes the invention; and which shows how the multiple Projections 2 transfer the Pressure Pat ⁇ tern 12 from a contacted Object 15 to the Finger 14 of the wear ⁇ er - much the same as the braille system works for the blind.
  • the individual elastomer Projections 2 are shown grossly over- size for clarity. Again refer to the actual size reference, shown in Figure 3B.
  • a section of an armored Finger Cover 13 is shown, covering a Finger Tip 14; with a number of Projections 2 that are in con ⁇ tact with an external Object 15.
  • the armor discs are not shown, and only the projections on the bottom of the finger tip are shown, for clarity.
  • the non flat Object 15 will present a grad ⁇ ient of pressures to the matrix of Projections 2, which will, in turn, transfer the pressure points directly to the finger. Since there is more pressure per square inch on each of the in ⁇ dividual projections than there would be on a flat surface, the pressure points tend to compensate for the loss in over all pressure through the elastomer Projections 1 and the apertures of the armor Discs 3 and 4.
  • Figure 7 shows a greatly enlarged single Projection 2 and associated Disc 3.
  • the arrows designate the external pressure transfer from an individual Projection 2, as the pressure would be conducted through a Disc Aperture 8, and proceed to deform the inside surface of the basic elastomer Cover 1.
  • the new armoring system invention provides a totally accep ⁇ table answer to the very important problem of protecting both surgeons and health workers from being unecessarily exposed to lethal viruses from accidental cuts and needle sticks, from scalpels and hypodermics needles.
  • the methods for production of the invention are easily implemented with automated tech ⁇ niques; and, therefore, the invention can be made less expensive . than those products that are labor intensive, such as chain mail gloves.
  • Gloves or full length finger cots that are designed with the new armoring method are made with a high temperature elastomer such as silicone; which enable the armoring units to be reused over and over again, after going through a cleaning and sterilizing process between usages.
  • a high temperature elastomer such as silicone

Abstract

Le système décrit sert à assurer un blindage métallique à des protections corporelles souples, telles que des gants ou des doigtiers, afin de protéger l'utilisateur contre les coupures ou les piqûres accidentelles avec des instruments tranchants, tels que scalpels et aiguilles hypodermiques. Le matériau élastomère souple (1) qui est utilisé pour le gant de protection est pourvu de petites saillies étroitement espacées (2), sur lesquelles sont fichés des disques métalliques circulaires (3, 4) qui se chevauchent. Les disques métalliques qui se chevauchent sont libres de se mouvoir les uns sur les autres pour assurer une souplesse totale; et les petites saillies élastomères à extrémités arrondies (6) présentent d'excellentes caractéristiques de friction permettant à l'utilisateur de saisir des objets métalliques lisses, et servent à transmettre la sensation du toucher.
PCT/US1988/002052 1988-06-21 1988-06-21 Systeme de blindage pour gants de protection et autres WO1989012797A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US1988/002052 WO1989012797A1 (fr) 1988-06-21 1988-06-21 Systeme de blindage pour gants de protection et autres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1988/002052 WO1989012797A1 (fr) 1988-06-21 1988-06-21 Systeme de blindage pour gants de protection et autres

Publications (1)

Publication Number Publication Date
WO1989012797A1 true WO1989012797A1 (fr) 1989-12-28

Family

ID=22208740

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1988/002052 WO1989012797A1 (fr) 1988-06-21 1988-06-21 Systeme de blindage pour gants de protection et autres

Country Status (1)

Country Link
WO (1) WO1989012797A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813281A (en) * 1973-01-30 1974-05-28 Gulf & Western Ind Prod Co Composite flexible armor
US4559251A (en) * 1984-02-17 1985-12-17 Kaoru Wachi Material for accident protecting clothes with connected tile-like small nylon plates
US4564539A (en) * 1984-05-25 1986-01-14 Kabushiki Kaisha Tsuji Metal mesh network

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813281A (en) * 1973-01-30 1974-05-28 Gulf & Western Ind Prod Co Composite flexible armor
US4559251A (en) * 1984-02-17 1985-12-17 Kaoru Wachi Material for accident protecting clothes with connected tile-like small nylon plates
US4564539A (en) * 1984-05-25 1986-01-14 Kabushiki Kaisha Tsuji Metal mesh network

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