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US 5,100,387 AGranted
Disposable universal needle guide apparatus (for amniocentesis)
OwnerRaymond C. Nginventor
Life of this patent
Estimating the term…
Abstract
A surgical needle guide apparatus comprising a substantially horizontal base to be applied to a surface on or adjacent a patient's body surface zone to be punctured by the needle; an upright guide flange mounted on the base, there being pivot structure associated with the flange and base and projecting beyond the base, to overhang an open zone adjacent the surface and offset from the flange; and elongated, tubular guide structure having a lower end portion carried by the pivot structure to be manually pivoted so that the needle structure swings adjacent the guide flange, the tubular structure adapted to receive needle structure for guiding movement thereof toward the open zone and at an angle determined by selective swinging of the tubular guide structure relative to the base.
Claims20
In surgical guide apparatus for needle means, the combination comprising:
- a) a substantially horizontal base to be applied to a surface on or adjacent a patient's body surface zone to be punctured by the needle means,
- b) an upright guide flange mounted on the base, there being pivot means associated with the flange and base and projecting beyond the base, to overhang an open zone adjacent said surface and offset from the flange,
- c) elongated, tubular guide means having a lower end portion carried by said pivot means to be manually pivoted so that the needle means swings adjacent the guide flange, said tubular means adapted to receive said needle means for guiding movement thereof toward said open zone and at an angle determined by selective swinging of the tubular guide means relative to the base,
- d) said needle means being in the form of a linearly elongated tubular needle, having a first end to be positioned at or proximate a patient's body, and an opposite end portion,
- e) a hub integral with said opposite end portion of the needle and providing a reservoir, the hub having a first duct in linear communication with the needle via said reservoir, and there being a second duct in communication with the reservoir and branching relatively away from the first duct, the second duct connected to the hub, said hub being enlarged relative to the needle,
- f) the first duct, reservoir and needle being in linear alignment to receive an elongated stylet having a sharp end, and manipulable to cause said sharp end to penetrate the patient's body, and to be withdrawn so that body fluid can pass through the needle and enter the reservoir,
- g) and flexible, coupler tubing operatively connected to said second duct for passing fluid between the reservoir and a syringe operatively connected to said reservoir via said flexible tubing, whereby the syringe may be bodily manipulated in force-transmitting relation isolation relative to the needle.
4 more elements
In surgical guide apparatus for needle means, the combination comprising:
- a) a substantially horizontal base to be applied to a surface on or adjacent a patient's body surface zone to be punctured by the needle means,
- b) an upright guide flange mounted on the base, there being pivot means associated with the flange and base and projecting beyond the base, to overhang an open zone adjacent said surface and offset from the flange,
- c) elongated, tubular guide means having a lower end portion carried by said pivot means to be manually pivoted so that the needle means swings adjacent the guide flange, said tubular means adapted to receive said needle means for guiding movement thereof toward said open zone and at an angle determined by selective swinging of the tubular guide means relative to the base,
- d) and wherein said tubular guide includes two parallel guide tubes respectively at opposite sides of said guide flange, said tubes interconnected to be swung together.
1 more element
In surgical guide apparatus for needle means, the combination comprising:
- a) a substantially horizontal base to be applied to a surface on or adjacent a patient's body surface zone to be punctured by the needle means,
- b) an upright guide flange mounted on the base, there being pivot means associated with the flange and base and projecting beyond the base, to overhang an open zone adjacent said surface and offset from the flange,
- c) elongated, tubular guide means having a lower end portion carried by said pivot means to be manually pivoted so that the needle means swings adjacent the guide flange, said tubular means adapted to receive said needle means for guiding movement thereof toward said open zone and at an angle determined by selective swinging of the tubular guide means relative to the base,
- d) said flange having the general form of a quadrant, with an upright forward edge, and a convexly curved edge extending from the top of said upright forward edge rearwardly and downwardly to said base,
- e) said quadrant-shape flange has angularly spaced position indicating indicia thereon, associated with said curved edge, to indicate the selected angularity of said tubular guide means relative to horizontal,
- f) said needle means being in the form of a linearly elongated tubular needle, having a first end to be positioned at or proximate a patient's body, and an opposite end portion,
- g) a hub integral with said opposite end portion of the needle and providing a reservoir, the hub having a first duct in linear communication with the needle via said reservoir, and there being a second duct in communication with the reservoir and branching relatively away from the first duct, the second duct connected to the hub,
- h) the first duct, reservoir and needle being in linear alignment to receive an elongated stylet having a sharp end, and manipulable to cause said sharp end to penetrate the patient's body, and to be withdrawn so that body fluid can pass through the needle and enter the reservoir,
- i) and flexible, coupler tubing operatively connected to said second duct for passing fluid between the reservoir and a syringe operatively connected to said reservoir via said flexible tubing, whereby the syringe may be bodily manipulated in force-transmitting relation isolation relative to the needle.
6 more elements
Dependencies are inferred from the claim text.