US3823717A - Apparatus for disintegrating concretions in body cavities of living organisms by means of an ultrasonic probe - Google Patents

Apparatus for disintegrating concretions in body cavities of living organisms by means of an ultrasonic probe Download PDF

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Publication number
US3823717A
US3823717A US00351140A US35114073A US3823717A US 3823717 A US3823717 A US 3823717A US 00351140 A US00351140 A US 00351140A US 35114073 A US35114073 A US 35114073A US 3823717 A US3823717 A US 3823717A
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Prior art keywords
impact element
tubular
teeth
probe
impact
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Expired - Lifetime
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US00351140A
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R Pohlman
M Cichos
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/22004—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
    • A61B17/22012—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320072—Working tips with special features, e.g. extending parts
    • A61B2017/320073—Working tips with special features, e.g. extending parts probe

Definitions

  • An ultrasonic probe for disintegrating concretions e.g. urinary calculus, in body cavities comprises a probe tube, ultrasonically vibrated in a longitudinal direction, having at one end a tubular impact element loosely coupled to it in the direction of vibration.
  • the impact element is provided on its free end with a cutting edge, preferably formed by a plurality of teeth.
  • the disintegrated concretions are continuously evacuated through the tubular impact element and the tubular probe.
  • the known apparatus suffers from an other disadvantage.
  • the optical examination instrument endoscope
  • the ultrasonic probe must be removed out of the body cavity and another instrument, for example a so-called suction syringe, must be used.
  • FIG. 1 shows the front end of an ultrasonic probe with tubular impact element. partly in section;
  • FIG. 2 shows the side elevation of the cutting edge of the impact element with trapezoidal teeth
  • FIG. 3 shows the plan of the cutting edge with twisted teeth and of the impact-element (in a section along the line III-III of FIG. 1);
  • FIG. 4 shows an impact element with rounded and corrugated impact surface
  • FIG. 5 shows an impact element with conical impact surface and cap sleeve
  • FIG. 6 shows an impact element with helicoidal spring retaining means
  • FIG. 7 shows an impact element with tubular retaining means.
  • the loose mounting ofthe impact element is ensured in that a sufficient tolerance in the radial direction is provided by shank guide means 4 in the end of the tube 1, whilst axial movement of the impact element 2 is limited on the one hand by an impact surface 3 on the element 2 and on the other hand by retaining pins 5, 5 which engage in slots 6, 6' in the impact element 2, so that the impact element 2 is prevented from dropping out of the tube 1.
  • the teeth 7 of the impact element 2 constructed as a tube section are arranged joggled, so that only those fragments of the concretion treated which have a smaller diameter than that of the tube can penetrate into the tube 1, so that easy evacuation of the fragments in the direction of the arrow 27 through the tube 1 is possible.
  • the teeth 7 are advantageously of trapezoidal construction with their wide side acting as chisels, so that they do not jam in the case ofa less brittle concretions, but can automatically bore themselves free.
  • the discharge of the material to the exhaustor device is furthermore greatly facilitated by this means.
  • FIG. 4 shows a construction of the impact surfaces at the front end of the ultrasonic probe tube 8 and on the impact element 9.
  • the end of the tube 8 is substantially conically countersunk at its end face 9a, whereby an automatic centering of the impact element 9 is created.
  • the impact element 9 is rounded at its contact surface 10, so that its rests not upon a plane surface but only upon an encircling line. If desired, the rounded support surfaces 10 may be corrugated as at 100, so that only support points remain.
  • FIG. 5 shows the mode of supporting an impact element 1] on an ultrasonic probe tube 12 by a cap sleeve 13.
  • both the impact surfaces l4, 15 are conically tapered.
  • FIG. 6 illustrates an embodiment in which an impact element 16 is loosely supported on an ultrasonic probe tube 17 by means of a helical spring 18.
  • the spring is dimensioned so that in the rest position a small gap 19 remains between the impact element I6 and the tube 17, which is closed only when the impact element 16 is pressed against the tube 17, so that energy is transmitted only then.
  • FIG. 7 shows means for supporting an impact element 20 on an ultrasonic probe tube 21 by means of a soft resilient sleeve 22 which can be adjusted so that again a small gap 23 remains between impact surfaces 24, 25.
  • the impact surfaces may be rounded and/or conically tapered.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Vascular Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Toxicology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US00351140A 1972-04-22 1973-04-16 Apparatus for disintegrating concretions in body cavities of living organisms by means of an ultrasonic probe Expired - Lifetime US3823717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2219790A DE2219790C3 (de) 1972-04-22 1972-04-22 Einrichtung zum Erzeugen von Sprödbrüchen bei harten Steinen

Publications (1)

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US3823717A true US3823717A (en) 1974-07-16

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US00351140A Expired - Lifetime US3823717A (en) 1972-04-22 1973-04-16 Apparatus for disintegrating concretions in body cavities of living organisms by means of an ultrasonic probe

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US (1) US3823717A (enrdf_load_stackoverflow)
JP (1) JPS4921989A (enrdf_load_stackoverflow)
DE (1) DE2219790C3 (enrdf_load_stackoverflow)
GB (1) GB1390322A (enrdf_load_stackoverflow)

Cited By (134)

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DE2219790A1 (de) 1973-10-31
DE2219790C3 (de) 1974-11-07
DE2219790B2 (de) 1974-04-04
GB1390322A (en) 1975-04-09
JPS4921989A (enrdf_load_stackoverflow) 1974-02-26

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