US3920001A - Aspirator device - Google Patents

Aspirator device Download PDF

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Publication number
US3920001A
US3920001A US477847A US47784774A US3920001A US 3920001 A US3920001 A US 3920001A US 477847 A US477847 A US 477847A US 47784774 A US47784774 A US 47784774A US 3920001 A US3920001 A US 3920001A
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Prior art keywords
cannula
sleeve
lateral opening
patient
skin
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Expired - Lifetime
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US477847A
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English (en)
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Donald W Edwards
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Individual
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Individual
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Priority to US477847A priority Critical patent/US3920001A/en
Priority to US05/611,613 priority patent/US3961622A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/329—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles characterised by features of the needle shaft
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/0233—Pointed or sharp biopsy instruments
    • A61B10/0283—Pointed or sharp biopsy instruments with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3403—Needle locating or guiding means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/15003—Source of blood for venous or arterial blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150236—Pistons, i.e. cylindrical bodies that sit inside the syringe barrel, typically with an air tight seal, and slide in the barrel to create a vacuum or to expel blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150244—Rods for actuating or driving the piston, i.e. the cylindrical body that sits inside the syringe barrel, typically with an air tight seal, and slides in the barrel to create a vacuum or to expel blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150259—Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • A61B5/150396—Specific tip design, e.g. for improved penetration characteristics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150503—Single-ended needles
    • A61B5/150511—Details of construction of shaft
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150503—Single-ended needles
    • A61B5/150519—Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150732—Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150748—Having means for aiding positioning of the piercing device at a location where the body is to be pierced
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00902—Material properties transparent or translucent
    • A61B2017/00907—Material properties transparent or translucent for light
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150175—Adjustment of penetration depth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A61M2005/1585—Needle inserters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/19—Constructional features of carpules, syringes or blisters
    • A61M2205/192—Avoiding coring, e.g. preventing formation of particles during puncture
    • A61M2205/197—Avoiding coring, e.g. preventing formation of particles during puncture by the seal material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3287—Accessories for bringing the needle into the body; Automatic needle insertion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/329—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles characterised by features of the needle shaft
    • A61M5/3291—Shafts with additional lateral openings

Definitions

  • the cannula is provided with a hub for mounting on a syringe. Adjacent the point of the cannula is a lateral opening which intersects the end opening. A slidable sleeve is provided for sealing to the cannula outwardly of the lateral opening during insertion of the cannula and, in some instances, during taking of the blood sample. An outwardly-extending disk is arranged at an oblique angle to the sleeve to seal against the skin of a patient.
  • the invention pertains to instruments used in the field of medicine and more particularly to an aspirator and method for taking a blood sample.
  • an l8-gauge cannula has a lumen of about 0.03 inch diameter. If the penetrating point is at a 30 angle, the axial length of the end opening is only about 0.06 inch. This emphasizes the problem of accurately positioning the point. If the cannula is inserted too deeply, the point may pass through the vein and the opening will be blocked.
  • the opening is otherwise positioned adjacent the wall of the vein, it may be blocked, or it may become blocked when a slight vacuum is applied in drawing blood. It is desirable to have a device that alleviates the necessity of accurate positioning, without affecting the operability. Additionally, the material punctured by the cannula has a tendency to bulge into the lumen and cause what is commonly known as coring or heel shaving. When this occurs, a piece of the material plugs the lumen so that it is difficult to draw a blood sample. It is desirable to have a device which alleviates the problem of coring, without affecting the operability of the aspirator.
  • the present invention relates to an improved aspirator device and method.
  • Another object is to provide an aspirator device including a sleeve which is slidably mounted on the cannula and seals thereto.
  • Still another object is to provide an aspirator device which seals against the skin of a patient.
  • Yet another object is to provide an aspirator device in accordance with the preceding object and in which the member that seals against the skin is transparent for viewing therethrough.
  • FIG. 1 is a side elevational view of a preferred embodiment of the present invention mounted on a syrmge;
  • FIG. 2 is a front view as seen from line 22 of FIG.
  • FIG. 3 is a view of the back side of the disk as seen from line 3-3 of FIG. 1;
  • FIG. 4 is an enlarged fragmentary side elevational view of the apparatus shown inserted in a vein which is partially shown in vertical section to illustrate details;
  • FIG. 5 is an enlarged longitudinal sectional view, through the sleeve and disk
  • FIG. 6 is a cross-sectional view taken along line 66 of FIG. 5 and on a still larger scale;
  • FIG. 7 is a view similar to FIG. 4 but with the end of the cannula at a different position relative to the vein, and showing the lateral opening sealed by the sleeve;
  • FIG. 8 is a view similar to FIG. 5 but showing the lateral opening sealed by the sleeve.
  • a cannula preferably has a size in the range of 25 gauge to 16 gauge and includes a tubular body 12 providing a lumen 13. At the distal end of the body 12 is a penetrating point 14 provided by about a 30 angle of the distal end. Thus the lumen terminates at what can be described as an opening 21 at the distal end of the cannula.
  • a hub 16 is provided at the proximal end of the cannula for attachment to a syringe 18.
  • the syringe provides a reservoir for receiving blood from the patient, and has a plunger 19 for applying a partial vacuum on the reservoir as the plunger is retracted.
  • Such syringes are well known in the art and additional description is deemed unnecessary. It is contemplated, however, that the present invention can be used with other suitable apparatus for applying a slight vacuum to draw blood from a patient.
  • the cannula 10 is inserted through the skin 32 and moved therebeneath through the subcutaneous tissue 34.
  • the piercing point 14 pierces the wall of a vein 36 or other blood vessel and moves into the vessel.
  • a conventional cannula is provided with an opening adjacent the penetrating point 14. In use it is possible to partially or completely block this opening. For example, should the opening be positioned adjacent the wall of the vein 36, the flow of blood will be restricted. Additionally, if the cannula is inserted too deeply, the penetrating point 14 may pass through the vein thereby necessitating repositioning.
  • the cannula is formed with a lateral opening 22 through the cannula wall.
  • the lateral opening 22 (see FIG. 4) intersects the opening 21 at the end of the cannula and having a width less than (see FIG. 6).
  • the lateral opening provides an entrance for blood in the event that the open end is obstructed in any of the manners described above.
  • the lateral opening 22 extends along the cannula to a remote end 23, a distance from the proximal end preferably in the range of 10 to 40 times the diameter of the lumen 13.
  • an 18 guage cannula has a lumen with a diameter of about 0.03 inch.
  • the remote end 23 would be located between 0.3 inch and 1.2 inch from the proximal end of the cannula.
  • the cannula 10 it is essential that the cannula 10 have a smooth exterior surface with no obstructions thereon.
  • the body 12 has a uniform outer diameter along its entire length.
  • a tubular sleeve 44 is provided to slidably surround the tubular body 12 of the cannula l and seal the lateral opening 22. It is necessary that the sleeve 44 seal to the tubular body 12 of the cannula prior to insertion (as shown in the position of FIG. 1 or FIG. 8), and that the cannula 10 be slidable extensible therethrough to the position shown in FIGS. 4, or 7 where the lateral opening can communicate with the vein 36.
  • sleeve 44 has a bore 45 for receiving the tubular body of the cannula.
  • the sleeve 44 has a length greater than the distance from the penetrating point 14 to the remote end 23 of the lateral opening 22, as shown in FIG. 8.
  • the bore 45 is sized to closely receive the tubular body 12 and provide an air-tight seal thereagainst; for example, note the seal area designated 45a in FIG. 8. Yet the bore 44 is sized to permit sliding movement between the cannulaand sleeve, from the position shown in FIG. 1 all the way to the hub 16.
  • a disk or base 46 is mounted on the sleeve 44 at an oblique angle to the axis of the sleeve.
  • the base 46 is adapted to be positioned on the surface of the skin 32 in overlying relation to the vein 36, and the cannula is then pushed through the sleeve 44 to penetrate the skin and enter the vein of the patient.
  • the base 46 is preferably formed of a clear material such as transparent plastic. By pressure applied against the base 46, it will seal against the skin 32 of the patient. A base of about inch diameter is a suitable size for this purpose.
  • An adhesive (not shown) can be applied to the underside of the base 46 to aid in holding the base and sleeve 46 in position over the vein and sealed against the skin 32.
  • the remote end 23 of the lateral opening 22 is k inch from the penetrating point 14, the sleeve 44 has a length of about X1 inch, and the cannula is 18 guage, having a length of about 2 inches.
  • FIG. 7 The importance of the sealing of the base 46 against the skin 32 and of the sleeve 44 over the lateral opening 22, is demonstrated in FIG. 7. If the vein 36 is close to the surface of the skin 32, it is sometimes possible to pierce the vein while some of the lateral opening 22 is still exterior of the skin. When this occurs, the lateral opening 22 is sealed by the sleeve 44 while the base 46 seals against the skin 32. Not only is a larger opening provided for receiving the blood, but a smaller area of the cannula penetrates the patient sincethe end 23 is still exterior. In such use, the lateral opening 22 is sealed by the sleeve 44, and the base 46 seals against the skin 32 throughout the procedure. The cannula 10 is aligned with the vein 36 and inserted into the vein until the lateral opening communicates with the vein, but without regard to whether the lateral opening 22 is still external of the skin. Thereafter, a slight vacuum is applied to withdraw the blood sample.
  • the apparatus of the present invention is also advantageous.
  • the cannula 10 is inserted into the infants leg, through the femoral vein, until the penetrating point is adjacent the femur.
  • the lateral opening 22 will then be communicating with the femoral vein; however, the walls of the vein may be pinched together. Therefore, the cannula should be retracted slightly until proper communication is provided between the lateral opening and the femoral vein. Thereafter, a slight vacuum is applied to withdraw the blood sample.
  • the present invention provides an aspirator device and method which alleviates the necessity of accurately positioning the end of a cannula.
  • An aspirator device for taking a blood sample and which alleviates the necessity of accurate positioning, the device including: means defining a reservoir for receiving blood from a patient; means for applying a partial vacuum on the reservoir to draw blood from the patient; a cannula having a size in the range of 25 guage to 16 guage; the cannula having a penetrating point at its distal end and a hub at its proximal end operatively connected to the reservoir; the cannula having an opening at its distal end communicating with its lumen, and an axially elongate lateral opening through the cannula wall on the side opposite the penetrating point; the lateral opening intersecting the end opening and extending along the cannula to a remote end a distance from the distal end in the range of 10 to 40 times the diameter of the lumen of the cannula; the lateral opening having a width less than ;the cannula having a smooth exterior surface of uniform diameter extending the full length thereof, with no
  • the last-mentioned means including an outwardlyextending base at an oblique angle to the axis of the sleeve and providing a flat, skin-engaging surface; the base being formed from a transparent synthetic resin and extending outwardly from the cannula about inch in each direction.
  • An aspirator device as set forth in claim 1 including an adhesive on the skin-engaging surface of the base for sealing against the skin of the patient.
US477847A 1970-07-24 1974-06-10 Aspirator device Expired - Lifetime US3920001A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US477847A US3920001A (en) 1970-07-24 1974-06-10 Aspirator device
US05/611,613 US3961622A (en) 1970-07-24 1975-09-09 Aspirator method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5804970A 1970-07-24 1970-07-24
US477847A US3920001A (en) 1970-07-24 1974-06-10 Aspirator device

Related Parent Applications (1)

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US5804970A Continuation-In-Part 1970-07-24 1970-07-24

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US05/611,613 Division US3961622A (en) 1970-07-24 1975-09-09 Aspirator method

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US3920001A true US3920001A (en) 1975-11-18

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US477847A Expired - Lifetime US3920001A (en) 1970-07-24 1974-06-10 Aspirator device
US05/611,613 Expired - Lifetime US3961622A (en) 1970-07-24 1975-09-09 Aspirator method

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US05/611,613 Expired - Lifetime US3961622A (en) 1970-07-24 1975-09-09 Aspirator method

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CA (1) CA938850A (de)
DE (1) DE2128395C3 (de)
GB (1) GB1286789A (de)

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122556A (en) * 1977-03-23 1978-10-31 Stanley Poler Intra-ocular lens
EP0173653A2 (de) * 1984-07-31 1986-03-05 Roberto Zambelli Vorrichtung zur Durchführung von Biopsien
US4596553A (en) * 1984-05-07 1986-06-24 Hans Lee Method and apparatus for performing suction lipectomy
US4627834A (en) * 1984-05-07 1986-12-09 Hans Lee Apparatus for performing suction lipectomy
US4676780A (en) * 1986-02-21 1987-06-30 Hans Lee Surgical apparatus for performing suction lipectomy
US4676788A (en) * 1985-11-27 1987-06-30 E. I. Du Pont De Nemours And Company Guide member for a vial
US4711636A (en) * 1985-11-08 1987-12-08 Bierman Steven F Catheterization system
US4713053A (en) * 1984-05-07 1987-12-15 Hans Lee Method and apparatus for performing suction lipectomy
US4900309A (en) * 1988-06-02 1990-02-13 Fred Netherton Needle shield
US4985019A (en) * 1988-03-11 1991-01-15 Michelson Gary K X-ray marker
US5067899A (en) * 1991-01-07 1991-11-26 Paschal Richard C Air-water dental syringe with protective barrier
US5192274A (en) * 1991-05-08 1993-03-09 Bierman Steven F Anchor pad for catheterization system
US5192273A (en) * 1989-07-24 1993-03-09 Steven F. Bierman Catheterization system
US5290248A (en) * 1989-07-24 1994-03-01 Steven F. Bierman Sideport connector for catherization system
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US8052649B2 (en) 2005-09-19 2011-11-08 Venetec International, Inc. Medical tubing securement assembly and methods of use
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Also Published As

Publication number Publication date
DE2128395B2 (de) 1980-04-03
GB1286789A (en) 1972-08-23
DE2128395A1 (de) 1972-02-03
US3961622A (en) 1976-06-08
DE2128395C3 (de) 1980-12-11
CA938850A (en) 1973-12-25

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