PTO Manual of Classification for US patents

PTO Manual of Classification for US patents

What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.


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363-131 121-55A 14-.5
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Class Number: 128
 Class Title: SURGERY

Subclass  Subclass
Number    Title

  *       ******************************
  *       *Former subclasses 1 to 1.6..*
  *       *Radioactive and Magnetic....*
  *       *substances as well as.......*
  *       *surgically implanted........*
  *       *hearing aids of Class.......*
  *       *128, Surgery have been......*
  *       *reclassified in Class.......*
  *       *600, Surgery. Class 600,...*
  *       *Surgery is considered an....*
  *       *integral part of Class......*
  *       *128, Surgery and follows....*
  *       *the schedule hierarchy......*
  *       *of Class 128. In...........*
  *       *addition, Class 600.........*
  *       *retains all definitions.....*
  *       *and class lines.............*
  *       *established in and for......*
  *       *in and for Class 128. ......*
  *       ******************************
  630     DIAGNOSTIC TESTING
  631     .Endoradiosonde
  632     .Measuring or detecting nonradioactive constituent of body
            liquid by means placed against or in body throughout test
  633     ..Infrared, visible light, or ultraviolet radiation directed on
             or through body or constituent released therefrom
  634     ...Light-conducting fiber inserted in body
  635     ..Electroanalysis
  636     ..Holder for color indicator
  637     .Measuring physical characteristic of blood by means placed
            against or in body
  638     .Bleeding detection
  639     .Structure of body-contacting electrode or its positioning
            means
  640     ..Electrode adhesively mounted on body
  641     ...Lead attached to electrode by head and socket-type
              connection
  642     ..Electrode in body
  643     ..Electrode held on body by suction
  644     ..Electrode or its positioning means extends circumferentially
             of body portion
  645     .Testing aqueous humor pressure or related condition
  646     ..Measuring impedance to flow of aqueous humor (tonography)
  647     ..Measuring acoustic impedance of eye
  648     ..Fluid jet directed against eye
  649     ..Eye vibrated
  650     ..Pressure indicator includes liquid column
  651     ..Pressure indicator includes pointer swingable over scale and
             mechanically driven by eye contacting means
  652     ..Measuring force required to produce standard or measured eye
             flattening (applanation)
  653.1   .Detecting nuclear, electromagnetic or ultrasonicc
            radiation
  653.2   ..Magnetic resonance imaging or spectroscopy
  653.3   ...Of fluid flow
  653.4   ...Using detectable material placed in the body
  653.5   ...System component (e.g., coil, magnet, etc.) contacting
              or conforming to body part
  654     ..Detectable material placed in body
  655     ...Piston-type ram forces material into body
  656     ...Using flexible catheter
  657     ....Catheter guide means
  658     ....Catheter structure
  659     ..Nuclear radiation (e.g., radioactive emission, etc.)
  660.01  ..Ultrasonic
  660.02  ...Used as an indicator of another parameter (e.g.,
              temperature, pressure, viscosity)
  660.03  ...With therapeutic device
  660.04  ...Plural display mode systems
  660.05  ....Having B-scan and doppler
  660.06  ...Tissue attenuation or impedance measurement or
              compensation
  660.07  ...Anatomic image produced by reflective scanning
  660.08  ....With mechanical and electronic scanning
  660.09  ....Mechanical scanning
  660.1   .....Hand-held unit
  661.01  ....Electronic array scanning
  661.02  ...Through-transmission (e.g., time-0f-flight) imaging
  661.03  ...One dimensional anatomic display or measurement
  661.04  ....Cardiographic
  661.05  ....Echoencephalography
  661.06  ....Opthalmic
  661.07  ...Doppler effect (e.g., foetal HR monitoring)
  661.08  ....Blood flow studies
  661.09  .....Pulse doppler
  661.1   ......With volumetric measurement
  662.01  .....CW doppler
  662.02  ...Contrast enhancement
  662.03  ...Structure of transducer or probe assembly
  662.04  ....Doppler effect (e.g., foetal HR monitor probe)
  662.05  ....Associated with puncturing instrument
  662.06  ....With portion of probe inserted into blood vessel (e.g.,
               catheter) or body orifice (e.g., endoscope-mounted)
  663.01  ....With beam directing or shaping means in the wave path
               (e.g., lens, reflector)
  664     ..Infrared radiation
  665     ..Visible light radiation
  666     ...Cardiovascular testing
  667     ....Pressure in blood vessel
  668     .Cardiovascular
  669     ..Measuring resistance of capillary blood vessels to hemorrhage
  670     ..Simultaneously detecting cardiovascular condition and diverse
             body condition
  671     ...Detecting respiratory condition
  672     ..Measuring pressure in heart or blood vessel
  673     ...Testing means inserted in body
  674     ....Pressure indicator includes liquid column
  675     ....Pressure transducer structure
  676     ...Ophthalmodynamometer
  677     ...Force applied against skin to close blood vessell
  678     ....Hand-supported occluder
  679     ....Tester having two occluders, or single occluder and separate
               pressurized pulse sensing cuff or cushion
  680     ....Electric signal generated by sensing means responsive to
               pulse or Korotkoff sounds
  681     .....Pulse-induced pressure fluctuation in occluder generates
                electric signal
  682     .....Pressure in inflatable occluder automatically raised above
                systolic pressure
  683     ......Repeating pressurization cycle
  684     ....Pressure indicator includes liquid column
  685     ....Valve structure
  686     ....Occluder structure
  687     ..Detecting blood vessel pulsation
  688     ...Waveform graph-type pulse recorder
  689     ...Pulse indicator
  690     ....Entire testing assembly supported on wrist
  691     ..Measuring blood flow in body portion other than heart
  692     ...Sensing means inserted in blood vessel
  693     ...By detecting electrical impedance of body portion
  694     ...By detecting volume of body portion
  695     ..Heart
  696     ...Detecting heartbeat electric signal
  697     ....Testing artificially regulated or assisted heart
  698     ....Fetal heartbeat
  699     ....Orthogonal heartbeat electric signals combined to form
               vector signal
  700     ....Detecting heartbeat electric signal and diverse
               cardiovascular characteristic
  701     ....Sound generated by successive heartbeat electric signals to
               represent heart action
  702     ....Detecting arrhythmia
  703     .....Variation in duration of segment of PQRST signal waveform
                (e.g., QRS complex, etc.) detected
  704     .....Vertical variation of segment of PQRST signal waveform
                (e.g., amplitude of QRS complex, etc.) detected
  705     .....Tachycardia or fibrillation detected
  706     ....Detecting signal repetition rate
  707     .....Detecting means associated with exercise machine
  708     ....Detecting R portion of signal waveform
  709     ....Switching means for activating different monitoring systems,
               signal displays, or signal recorders
  710     ....Signal display or recording
  711     .....Magnetic recording
  712     .....Cathode-ray tube used for display or included in recording
                means
  713     ...Blood output per beat or time interval
  714     ...Detecting heartbeat by sensing movement of oscillatable
              body-supporting means
  715     ...Detecting heart sound
  716     .Respiratory
  717     ..Halitosis detection
  718     ..Measuring metabolic rate by breath test
  719     ..Qualitative or quantitative analysis of breath component
  720     ..Measuring respiratory flow impedance or lung elasticity
  721     ..Detecting body movement attending breathing
  722     ...Capacitor-type transducer
  723     ...Detector responsive to movement induced variation inn
              impedance of body to electric current
  724     ..Thermistor-type transducer generating electric signal in
             response to breath flow
  725     ..Measuring breath flow or lung capacity
  726     ...Element rotated by breath flow
  727     ...Breath exhaled into or inhaled from expansible chamber
  728     ....Bellows or expansible bag
  729     ....Liquid surface forms portion of chamber boundary
  730     ..Breath collection
  731     .Detecting brain electric signal
  732     ..With feedback of signal to patient
  733     .Detecting muscle electric signal
  734     .Measuring electrical impedance or conductance of body portion
  735     ..Locating acupuncture points
  736     .Temperature detection
  737     .Detecting foreign object or calculus by probing
  738     .Monitoring fertility cycle
  739     .Sensitivity to vibration
  740     .Sensitivity to impact
  741     .Sensitivity to electric stimulus
  742     .Sensitivity to thermal stimulus
  743     .Sensitivity of skin to allergens or radiation
  744     .Touch or pain response of skin
  745     .Eye or testing by visual stimulus
  746     .Ear or testing by auditory stimulus
  747     .Injecting gas into body canal or cavity
  748     .Measuring fluid pressure in body
  749     .Sampling non-liquid body material (e.g., bone, muscle tissue,
            epithelial cells, etc.)
  750     ..Irrigation
  751     ..Cutting
  752     ...Applying suction to sample
  753     ....Body pierced by tubular cutter or rod-type punch
  754     ...Body pierced by tubular cutter or rod-type punch
  755     ...Motorized
  756     ..Brushing
  757     ..Scraping with edged instrument
  758     ...Applying suction to sample
  759     ..Wiping or dabbing
  760     .Liquid collection
  761     ..Means specifically structured for collecting urine of human
             female
  762     ..Plural collection means (e.g., plural reservoirs or plural
             absorbent pads, etc.)
  763     ..Hand-supported collector with rigid intake tube (e.g., a
             hollow needle, etc.)
  764     ...Penetrable seal in liquid flow path to collection reservoir
  765     ...Mechanical means for drawing liquid into collection
              reservoir
  766     ...Means for controlling liquid flow
  767     ..Wall of collection reservoir formed of flexible material
  768     ..Flexible collection tube inserted in body
  769     ..Collection receptacle bodily placed within body
  770     ..Collector combined with lancet
  771     ..Indicator
  772     .Flexible catheter guide
  773     .Detecting sound generated within body
  774     .Measuring anatomical characteristic or force applied to orr
            exerted by body
  775     ..Associated with birth
  776     ..Gum
  777     ..Mouth, tongue, or jaw
  778     ..Vagina or uterus
  779     ..Foot
  780     ..Esophagus, stomach, or lower alimentary canal
  781     ..Spine
  782     ..Body movement (e.g., head or hand tremor, motility of limb,
             etc.)
  3       .Specula
  4       ..Endoscopes
  5       ...Fenestrated
  6       ...Illuminating
  7       ....Cystoscopes and urethoscopes
  8       ....Gastroscopes
  9       ....Otoscopes
  10      ..Pharyngoscopes
  11      ...Illuminating
  12      ..Non-pivoted gags
  13      ...Illuminating
  14      ...Veterinary
  15      ..Tongue depressors
  16      ...Illuminating
  17      ..Pivoted
  18      ...Illuminating
  19      ...Veterinary
  20      ..Retractors
  21      .Reflectors
  22      ..Illuminating
  23      .Lamps
  24 R    KINESITHERAPY
  24.1    .With light, thermal and electrical application
  24.2    ..Appliances with applicators having specific movement
  24.3    ...Rolling
  24.4    ....Electrical application
  24.5    ...Electrical application
  25 R    .Exercising appliances
  26      ..Hand and finger
  28      ..Artificial respiration
  30      ...Produced by vacuum and compression
  30.2    ....Conforms to shape of torso portion
  31      ..Obstetric
  25 A    ..Eye exercisers
  25 B    ..Foot exercisers
  32      .Vibrators
  33      ..Couch, chair or other support
  34      ..Unbalanced weight
  35      ...Motor operated
  36      ....Electric motor
  37      ....Fluid motor
  38      ..Fluctuating fluid column
  39      ...Diaphragm actuated
  40      ...Pressure interrupted
  41      ..Vibrant armature
  42      ..Reciprocating weight
  43      ..Vibrant slide
  44      .Appliances with applicators having specific movementt
  45      ..Gyratory, motor operated
  46      ...Electric motor
  47      ...Fluid motor
  48      ..Oscillatory, motor operated
  49      ...Electric motor
  50      ...Fluid motor
  51      ..Reciprocatory, motor operated
  52      ...Electric motor
  53      ...Fluid motor
  54      ..Percussing
  55      ...Motor operated
  56      ..Rotary
  57      ..Rolling
  58      ...Belt supported
  59      ..Pinching
  60      ..Kneading
  61      ..Manipulating
  62 R    ..Frictioning
  63      ...Belt
  62 A    ...Gum massagers
  64      ..Vibrant membrane
  65      ..Lavative
  66      ...Fluid current
  67      .Applicators
  24 EL   .Extracorporeal shock wave lithotripsy external to the body
            only
  24 AA   .Ultrasonic
  95.1    .Truss
  96.1    ..Abdominal
  97.1    ..Head
  98.1    ..Perineal
  99.1    ..Support
  100.1   ...Belt wholly flexible
  101.1   ....Elastic in part
  102.1   ...Belt and frame
  103.1   ...Frame hinged
  104.1   ...Frame wholly metallic
  105.1   ...Frame with auxiliary straps
  106.1   ...Pad carrier
  107.1   ....Detachable
  108.1   ....Pivoted
  109.1   .....Resilient
  110.1   .....Clamped
  111.1   ....Resilient
  112.1   ..Pad
  113.1   ...Composition
  114.1   ...Medicating
  115.1   ...Rigid
  116.1   ...Adjustable center
  117.1   ...Resilient
  118.1   ....Inflated
  119.1   ....Spring
  120.1   ....Stuffed
  121.1   ..Connections
  122.1   ...Ball and socket
  123.1   ...Hinged
  124.1   ...Clamped
  125.1   ...Resilientt
  126.1   ....Spring only
  830     .FEMALE REPRODUCTORY TRACT SHIELDS, SUPPORTS, OR BIRTH CONTROL
            DEVICES (e.g., pessaries, contraceptive devices)
  831     ..Fallopian occluders
  832     ..With contraceptive, spermacidal or antifertility agent
  833     ...Intrauterine
  834     ..Pessaries
  835     ...External supporters
  836     ...Inflatable
  837     ...Diaphragm
  838     ....Inserters and removers
  839     ...Intrauterine
  840     ....Inserters and removers
  841     ....With cervical cap
  842     .MALE REPRODUCTORY TRACT SHIELDS OR BIRTH CONTROL DEVICES (e.g.,
            prophylactics, vas deferens valves, etc.)
  843     ..Vas occluders (implants, etc.)
  844     ..Condoms
  845     .BODY RESTS, SUPPORTS OR POSITIONERS FOR THERAPEUTIC PURPOSES
            (e.g., sexual, postural, head, etc.)
  846     .BODY PROTECTING OR RESTRAINING DEVICES FOR PATIENTS OR INFANTS
            (e.g., shields, immobilizers)
  847     ..With fluid supply
  848     ..Antisnoring devices
  849     ..Drapes
  850     ...Incision or cavity inserted
  851     ...With handle or applicator means
  852     ...With surgical implement retaining means
  853     ...Fenestrated
  854     ....With cover (flap)
  855     ...Folded or stacked
  856     ...Tubular
  857     ..Head or face protector (e.g., lips, ears, etc.)
  858     ...Eye or nose protectors
  859     ...Oral cavity protectors
  860     ....Tongue
  861     ....Teeth protectors (e.g., mouthpieces)
  862     .....Thermoplastic or thermosetting type
  863     ...Breath or contaminated air deflectors
  864     ...Aural protectors (e.g., ear)
  865     ....Inflatable or expandable
  866     ....External ear or head mounting means
  867     ....With noise or pressure attenuating means (e.g., dampening,
               filtering, etc.)
  868     .....Valve means (e.g., diaphragm)
  869     ..Restrainers and immobilizers (e.g., strait jackets, etc.)
  870     ...Body type (e.g., backboards)
  871     ....Antisupination
  872     ....Crib blankets, sheets and covers
  873     ....Garment type (e.g., sleeping bags)
  874     .....Vest or shirt type for upper torso
  875     ......Harness
  876     ....Belt or strap
  877     ...Intravenous limb restrainers/supports (e.g., armboards,
              etc.)
  878     ...Arm or hand
  879     ....Hand
  880     .....Thumb/finger (e.g., anti-thumb sucking, etc.))
  881     ....Elbow
  882     ...Leg or foot
  883     ...Sexual restraints
  884     ....Intravaginal (e.g., antirape devices)
  885     ...Incontinent type
  886     ....With detector or alarm
  887     ..Nonabsorbent body opening occluders, seals or supporters
             (e.g., surgical or natural orifice occluders)
  888     ..Wound shields (e.g., vaccination)
  889     ..Chafing shields (e.g., decubitus pads, etc.)
  890     ...Nipple
  891     ...Crotch or thigh
  892     ...Joint or limb (e.g., foot, elbow, heel, knee, etc.)
  893     ....Foot/toe (e.g., corn, bunion, etc.)
  894     .....Padded or cushioned
  200.11  MEANS FOR PASSING RESPIRATORY GAS THROUGH BODY OF LIQUID
           BEFORE INHALATION
  200.12  .Pocket type
  200.13  .Plural orifice means passing gas into liquid
  200.14  LIQUID MEDICAMENT ATOMIZER OR SPRAYER
  200.15  .With tongue depressor
  200.16  .Ultrasonic
  200.17  .Rotating
  200.18  .Spray impinged against baffle in or adjacent flow conduit
  200.19  .Means for selectively dispensing different fluids
  200.21  .Gas stream aspirating medicament from reservoir
  200.22  ..Gas flow induced by expansion chamber device (e.g.,
             piston/cylinder ram, squeeze bulb, etc.)
  200.23  .Pre-pressurized container holding medicament
  200.24  RESPIRATORY METHOD OR DEVICE
  200.25  .Artificial gill, or means for separating entrained air
            from liquid stream
  200.26  .Means placed in body opening to facilitate insertion of
            breathing tube
  200.27  .Gas stream directed away from face mask to penetrate
            contaminated atmosphere
  200.28  .Body or head supported means, other than face mask or
            hood, with gas stream to screen face or penetrate contaminated
            atmosphere
  200.29  .Underwater exhalation dispersing means
  201.11  .Draw-type snorkel
  201.12  .Corrective or magnifying lens combined with face mask
            having eyepiece or transparent viewing portion
  201.13  .Inhaled gas heated or humidified by exhaled gas
  201.14  .Viewing strip slidable relative to mask
  201.15  .Means for keeping viewing member (e.g., eyeglass,
            transparent face shield, etc.) clear
  201.16  ..Wiper
  201.17  ..Mask with porous lower filtering portion and impervious
             upper portion shielding user's eyeglasses from exhaled breath
  201.18  .Means for preventing nasal inhalation
  201.19  .Means for transmitting, or facilitating, voice
            communication from face mask, hood, or helmet
  201.21  .Using liquified oxygen
  201.22  .Including body or head supported means covering user's
            scalp
  201.23  ..And nose and mouth also covered
  201.24  ...Face mask, visor, or like face-covering means hinged too
              scalp covering means
  201.25  ...Means for removing substance from respiratory gas
  201.26  ...Including means inserted in mouth
  201.27  ...Diving or swimming apparatus
  201.28  ...Having valve, or valve control, structure
  201.29  ...Garment associated with head cover
  202.11  ....Flight suit
  202.12  .Hypobaric body chamber
  202.13  .Combined with or convertible to a nonrespiratory device,
            or having nonrespiratory function other than hyperbaric
            treatment
  202.14  ..Having buoyancy chamber
  202.15  ..Having means for facilitating ingestion of food or drink
  202.16  ..Means effecting nonrespiratory medical treatment
  202.17  ...Device usable either as inhaler or means for rubbing
              medicament on body surface
  202.18  ..Pillow or other support exclusively for head
  202.19  ..Garment
  202.21  .Smoking device simulator
  202.22  .Means for indicating improper condition of apparatus
  202.23  .Means for preventing electric shock or arcing
  202.24  .Means for protecting user from pressure wave or flame
            resulting from gas ignition
  202.25  .Ozone or ion generation
  202.26  .Gas produced by electrolysis or chemical reaction
  202.27  .Means for quickly connecting or disconnecting apparatus
            components
  202.28  .Means using rescuer's breath for supplying respiratory gas
            to another person
  202.29  ..Movable wall separating breath of rescuer and victim
  203.11  ..Valved
  203.12  .Means for mixing treating agent with respiratory gas
  203.13  ..Means for supplying anesthetic under patient's control
  203.14  ..Control means responsive to condition other than user's
             airway pressure
  203.15  ..Particulate treating agent carried by breathed gas
  203.16  ..Means for mixing respiratory gas with water vapor and
             another treating agent
  203.17  ...Electrically heated means producing water vapor
  203.18  ..Means for mixing treating agent with oral exhalation and
             directing mixture into nasal passage
  203.19  ..Means for controlling gravity flow of treating agent from
             holder
  203.21  ..Means broken or pierced to supply treating agent
  203.22  ..Means for supplying, or permitting inhalation of,
             separate streams of treating agent/respiratory gas mixture
             through nasal passages
  203.23  ..Pocket-type draw tube having discharge aperture for
             air/treating agent mixture at end thereof
  203.24  ...With gas flow control means other than pivotal or
              removable closure
  203.25  ..Means for varying treating agent/respiratory gas ratio
  203.26  ..Means for heating treating agent, respiratory gas, or
             mixture thereof
  203.27  ...Electric
  203.28  ..Including expandable bag, bellows, or squeeze bulb
  203.29  ..Including face mask covering nose and mouth
  204.11  ..Treating agent holder solely supported by headd
  204.12  ...Holder solely supported by nose
  204.13  ..Treating agent evaporated from extended surface absorbent
             (e.g., sponge, fibrous wick, screen, etc.)
  204.14  ..Respiratory gas passed over surface of liquid treating
             agent in reservoir
  204.15  .Means for cooling respiratory gas or respiration device
  204.16  ..Substance removed from respiratory gas by cooling
  204.17  .Means for heating respiratory gas or respiration device
  204.18  .Means for supplying respiratory gas under positive
            pressure
  204.19  ..Permanent magnet included in gas flow control means
  204.21  ..Electric control means
  204.22  ...Means for sensing partial pressure, or amount, of
              component in gas mixture
  204.23  ...Means for sensing condition of user's body
  204.24  ..Fluidic control device utilizing Coanda effect or jet
             impingement to alter fluid flow
  204.25  ..Gas stream passed through jet nozzle or venturi passage
  204.26  ..Gas supply means responsive to breathing
  204.27  ...Snap action toggle included in control mechanism
  204.28  ...Bag or bellows included in control mechanism
  204.29  ..Control means responsive to variation in ambient
             pressure
  205.11  ..Means for varying air/oxygen ratio
  205.12  ..Means for removing substance from respiratory gas
  205.13  ..Respiratory gas supplied from expandable bag, bellows, or
             squeeze bulb
  205.14  ...Means for adjusting gas volume delivered to user from
              bag, bellows, or bulb during inflation-deflation cycle
  205.15  ...Held in pressurizable housing
  205.16  ...Biased to contracted or expanded position by mechanical
              means (e.g., weight, spring, etc.)
  205.17  ...Rebreathing bag or bellows
  205.18  ..Gas supplied by piston pump
  205.19  ..Suction means for assisting exhalation
  205.21  ..Means broken or pierced to supply gas
  205.22  ..Gas container supported on body
  205.23  ..Indicator structure
  205.24  ..Valve, or valve control, structure
  205.25  ..Face mask covering a breathing passage
  205.26  ..Atmosphere enclosure (e.g., oxygen tent, hyperbaric
             chamber for pressurizing whole body, etc.)
  205.27  .Means for removing substance from respiratory gas
  205.28  ..Carbon dioxide
  205.29  ..Particulate filtering
  206.11  ...Including means inserted in nasal passage
  206.12  ...Face mask covering a breathing passage
  206.13  ....Mask attached to ear
  206.14  ....Mask adhesively attached to face
  206.15  ....With gas flow control valve
  206.16  ....With frame, shaping means, reinforcement, or filter
               formed of wire
  206.17  ....With separate filter encircling element, or housing,
               securing filter on mask
  206.18  ....Covering nose only
  206.19  ....Body of mask, other than viewing means, formed of
               porous filter material (e.g., surgical mask formed entirely
               of cloth, etc.))
  206.21  .Face mask covering a breathing passage
  206.22  ..Means for handling liquid (e.g., saliva, breath
             condensation, etc.) accumulated in mask
  206.23  ..Mask/eyepiece sealing structure
  206.24  ..Mask/face sealing structure
  206.25  ...Adhesive
  206.26  ...Closed air-filled passage adjacent mask edge (e.g.,
              tubular bead, etc.)
  206.27  ..Means holding mask readily accessible for use
  206.28  ..Covering nose and mouth
  206.29  ...Including means inserted in mouth
  207.11  ...Structure of means securing mask to head
  207.12  ...Valve for controlling gas flow
  207.13  ..Covering nose only
  207.14  .Respiratory gas supply means enters mouth or tracheotomy
            incision
  207.15  ..Breathing passage occluder
  207.16  ..Valve for controlling gas flow
  207.17  ..Holding strap extending circumferentially of head or
             neck
  207.18  .Respiratory gas supply means enters nasal passage
  207.29  DEVICE FOR CREATING A TRACHEOTOMY INCISION
  *       ******************************
  *       *Former subclasses 207.19 to.*
  *       *274 (MEDICATORS) of Class...*
  *       *128, Surgery have been......*
  *       *reclassified in Class 604,..*
  *       *Surgery. Class 604, Surgery.*
  *       *is considered an integral...*
  *       *part of Class 128, Surgery..*
  *       *and follows the schedule....*
  *       *hierarchy of Class 128. ....*
  *       *In addition, Class 604......*
  *       *retains all definitions and.*
  *       *class lines established in..*
  *       *and for Class 128. .........*
  *       ******************************
  *       ******************************
  *       *Former subclasses 275 to....*
  *       *302 (RECEPTORS) of Class....*
  *       *128, Surgery have been......*
  *       *reclassified in Class 604,..*
  *       *Surgery. All statements in..*
  *       *the preceeding paragraph....*
  *       *in respect to hierarchy.....*
  *       *and definition relationship.*
  *       *between Class 128 and 604...*
  *       *apply to this area as well. *
  *       ******************************
  *       ******************************
  *       *Class 606 is an integral....*
  *       *part of Class 128, Surgery..*
  *       *as shown by the position of.*
  *       *this box. This class........*
  *       *provides for the application*
  *       *of light, cryogenics, and...*
  *       *electrical applicators to...*
  *       *the body, orthopedic........**
  *       *instrumentation including...*
  *       *internal and external.......*
  *       *fixators, orthopedic cutting*
  *       *devices and surgical........*
  *       *instrumentation. ...........*
  *       ******************************
  *       ******************************
  *       *Former subclasses 362-403,..*
  *       *419-424 and 783-804 (Light,.*
  *       *Application) of Class 128,..*
  *       *Surgery have been...........*
  *       *reclassified in Class 607,..*
  *       *Surgery, Light, Thermal,....*
  *       *and Electrical Application. *
  *       *All statements in the.......*
  *       *preceeding paragraphs in....*
  *       *respect to hierarchy and....*
  *       *definition relationship.....*
  *       *between Class 128 and 607...*
  *       *apply to this area as well. *
  *       ******************************
  897     .MISCELLANEOUS
  898     ..Methods
  899     ..Devices placed entirely within body and means used therewith
             (e.g., magnetic implant locator)
  *       ******************************
  *       CROSS-REFERENCE ART COLLECTIONS
  *       ******************************
  900     BLOOD PRESSURE RECORDER
  901     SUPPRESSION OF NOISE IN ELECTRIC SIGNAL
  902     BIOLOGICAL SIGNAL AMPLIFIER
  903     RADIO TELEMETRY
  904     TELEPHONE TELEMETRY
  905     FEEDBACK TO PATIENT OF BIOLOGICAL SIGNAL OTHER THAN BRAIN
           ELECTRIC SIGNAL
  906     MULTIPHASIC DIAGNOSTIC CLINIC
  907     ACUPUNCTURE
  908     PATIENT PROTECTION FROM ELECTRIC SHOCK
  909     BREATHING APPARATUS WITH MEANS FOR PREVENTING PATIENT
           CROSS-CONTAMINATION
  910     ANESTHESIA GAS SCAVENGING SYSTEM
  911     UNILIMB INHALATION-EXHALATION BREATHING TUBES
  912     CONNECTIONS AND CLOSURES FOR TUBES DELIVERING FLUIDS TO OR FROM
           THE BODY
  913     BREATHABLE LIQUIDS
  914     REBREATHING APPARATUS FOR INCREASING CARBON DIOXIDE CONTENT IN
           INHALED GAS
  915     ULTRASOUND MAMMOGRAPHY
  916     ULTRASOUND 3-D IMAGING
  917     BODY FLUID, DEVICES FOR PROTECTION THEREFROM (E.G., AIDS,
           HEPATITUS, ETC.)
  918     .Condoms and shields
  919     .Syringe, means to protect user
  *       ******************************
  *       DIGESTS
  *       ******************************
  DIG 1   Motorized syringe
  DIG 3   Heart-lungg
  DIG 6   Intravenous injection support
  DIG 7   Servo-systems
  DIG 8   Collagen
  DIG 10  Fluid amplifiers
  DIG 12  Pressure infusion
  DIG 13  Infusion monitoring
  DIG 14  Teflon
  DIG 15  Velcro
  DIG 18  Heat shrinkable film
  DIG 19  Clavicle splint
  DIG 20  Inflatable splint
  DIG 21  Silicone
  DIG 22  Blood coagulation
  DIG 23  Cervical collars
  DIG 24  Medical-surgical bags
  DIG 25  Artificial sphineters and devices for controlling urinary
           incontinences
  DIG 26  Cannula supporters
  DIG 27  Cryogenic