US2564977A - Medical injecting apparatus - Google Patents

Medical injecting apparatus Download PDF

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Publication number
US2564977A
US2564977A US7160049A US2564977A US 2564977 A US2564977 A US 2564977A US 7160049 A US7160049 A US 7160049A US 2564977 A US2564977 A US 2564977A
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Prior art keywords
body
needle
channel
body member
fluid
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Hu Quang Hsi
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Hu Quang Hsi
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0021Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026Multi-lumen catheters with stationary elements
    • A61M25/0028Multi-lumen catheters with stationary elements characterized by features relating to at least one lumen located at the proximal part of the catheter, e.g. alterations in lumen shape or valves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A61M5/1582Double lumen needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0021Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026Multi-lumen catheters with stationary elements
    • A61M25/003Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves
    • A61M2025/0031Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0021Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026Multi-lumen catheters with stationary elements
    • A61M25/0032Multi-lumen catheters with stationary elements characterized by at least one unconventionally shaped lumen, e.g. polygons, ellipsoids, wedges or shapes comprising concave and convex parts

Description

Aug- 21, 1951 QUANG Hsl HU 2,564,977

MEDICAL INJECTING APPARATUS Filed Jan, 19, 1949 ril/1107 l Ill INVENTOR.

V IIIIMIIIIIII HTTOANEYS Patented Aug. 21, 1951 UNITED STATES PATENT OFFICE IClaims.

This invention relates to a medical injecting apparatus and more particularly to a medical device for simultaneously injecting into and extracting fluids from the body.

In the medical art, various types of syringes and medical apparatus are used for extracting iluids from and injecting others into the body. These types of apparatus usually contain a syringe with a multiple-way valve and a syringe needle so that by operating the valve, once the needle has been inserted into any desired part of the body, the fluid is withdrawn by means of one of the syringes from the body, and after this operation has been completed, one of the other syringes containing fluids of any suitable kind, depending upon the kind of operation being performed by the physician, is forced into the body through said syringe needle. It is apparent that this process is tedious with this type of apparatus since there is no provision in such type of apparatus for a simultaneous extraction of fluid from the body and injection of necessary fluid into the body.

With the above disadvantages in view, it is a primary object of my invention to provide an.

easily operable medical device which permits simultaneous extraction of iluid of one kind from the body and simultaneously injecting a fluid of another kind into the body.

Another object of the present invention is to provide an easily assembled, simply and economically made medical device having a dual channel adapted for injecting gaseous or liquid fluids through one channel into the body while simultaneously withdrawing through the other chan' nel fluid of another type from the body.

A specic object of the present invention is to provide a medical device comprising a body member with a multiple-way valve and multiple channeled needle and an operable fluid regulator in connection with said valve.

A more specific object of my invention is to provide a medical device containing a body member to which may be attached a plurality of syringes, and a fluid regulator, and a needle integral with the body member having a pair of independent channels one of which is in direct communication with the fluid regulator and the other in selective communication with the syringes.

Other objects, advantages and features will become apparent from the hereinafter described invention taken in connection with the accompanying drawings in which;

Fig. 1 is a sectional view of a preferred embodiment of my invention;

Fig. 2 is a sectional view of my invention containing intake iiuid regulating means for controlling the amount of iluid intake into the body;

Fig. .3 is an enlarged detail sectional view of a portion of the embodiment, shown in Figs. 1 and 2; and f Fig. 4 is a sectional view taken on line 4-4 of Fig. 3.

Referring now to the drawings in which like reference numerals refer to like parts throughout, it will be noted that I provide a medical device I0 containing a body member I I, provided with a plurality of inlets I2, I3 and I4, respectively, and passages I 5, I 6, and I1, respectively, for said inlets I2, I3 and I4, respectively. Said body member I0 is provided with an opening I9 in which is disposed a manually operable valve or plug 20 containing a passage 2| extending through the diameter of the plug and a passage 22 at right angles to passage 2 I. It will be noted that said plug can be rotated to control the passage of fluids through either passage 2I or 22 from passages I6 or I 'I in any desired manner into a passage 23 leading into a syringe needle 24.

Said needle 24, as shown, is provided with a channel 25 leading into passage 23, and a channel 26 which, as shown, is in communication with passage I5 and inlet I2 of body member II. The puncture end 21 of said needle 24 is provided with an inclined opening 28 disposed in the periphery of said needle and forming part of channel 25. The other channel 26 is closed at its end but is provided as shown with a side opening 29.

It will be noted that said side opening 29 and opening 28 in the inclined tip 21 of the needle, as shown in Figs. 1 and 3, are so disposed that they do not extend too far from the puncturing tipv thereby avoiding too deep a penetration of said needle end into the body during the use of the device.

The inlets I3 and I4, respectively, are provided with syringes 30 and 3 I, respectively, of the usual type of construction, while inlet I2 is adapted to accommodate a closure member 32 containing a exible stem 33 which is adapted to enter into inlet I2 and passage I5 into channel 26 of the needle, while the rear or head portion 34 of said member 32 is adapted to form a seal with inlet I2 of body member II. Said `member 32 is provided in order to close the channel 26 and permit penetration of the needle 24 to a certain depth into the body, whereupon the said member 32 said shell 31 is provided with a manually operable screw member 39 at the end of which is a pressure plate ymember 40 which is adapted to press against said rubber tubing 38. Said shell 31 is provided with an opening il through which a fluid, such as air, which has been initially cleaned can be passed but whose amount is controlled by means of said screw member 39 pressing against the rubber tube so as to restrict the size of said tube.

Plug 2B in body member il, it will be noted, can be rotated into any desired position such as that shown in Figs. l and 2. It will be noted, furthermore, ythat said plug 2li can be rotated so that it forms a communication between syringe member 3i) and channel 25 thus permitting the injection of fluid through said channel while simultaneously withdrawing fluid from the body through the other channel 2S and out through passage l5. This operation, however, may be reversed so that fluid can be withdrawn through said channel 25 by withdrawing the piston 42 or 133 of syringe 3U or 3l, respectively, and simultaneously permitting a flow of another iluid through the regulator 35 into channel 26 and thus into the body. It may be desired to inject two different types of fluid into the body at different times while drawing out a iluid from the body by using the arrangement as shown in Fig. 1 inwhich case the plug 20 may be turned as shown in Fig. l to permit injection of fluid into the body by means of syringe 3l), then turning the plug 2U as shown in Fig. 2 so that the communication between the syringe 3l is eiected with channel 25, and then injecting another fluid into' the body through said latter syringe 3l While at the same time forcing another fluid into the body through regulator 35 into channel 26. By proper manipulation of the plug 2B and syringes 30 and 3l connected with member Il and the operation of regulator 35 and the use of the needle 24, several desired techniques may be developed, whereby different types of uids may be alternately added to the body, or whereby various body fluids may be removed therefrom.

It will be noted from the foregoing description taken in connection with the accompanying drawings that there is provided a medical device containing one or more syringes and a needle construction in which one of the channels of the needle is adapted for supplying a fluid into the body while the other channel in the needle is adapted for extracting or educting a fluid from the body. By the use of a dual channel needle such as that described and forming part of my invention, a single puncture into any cavity of the body permits injecting a substance either liquid or gaseous to displace the secretions, exudate pus, blood or gas automatically from the body. Furthermore, the needle as described and shown and forming part of this invention, because of its dual channel permits a constant inow and outilow of different fluids through the channels. Because the location of the respective terminal openings at the puncturing end of theneedle are in different positions, there is little likelihood of the fluids entering or leaving the body being immediately mixed. The injected liquid should preferably be of a different specific gravity from the iluid being extracted from the body cavity. In some instances, where it is desired to remove pus from a cavity of the body, it is quite difficult by ordinary needle and syringe to remove said pus because of its thickness. By utilizing the device invented by me and described herein, this pus can be diluted by injecting a medicine or saline solution through one of the channels of the needle to permit intermixing of the pus and the medicine or saline solution and then flowing the resultant mixture through the other channel of the needle, thus cleaning and washing the cavity containing said pus. It will be further noted that by utilizing the iluid control regulator, the pressure in the cavity into which the needle has been inserted can be kept constant during the operative procedure. This is an extremely important factor in rendering the patient comfortable and also in eliminating the possibility of shock and other dangerous complications formed through sudden change in pressure in a closed space in the body, especially as in the case of pleural and lumbar punctures.

For example, my invention can be used for an ordinary diagnostic lumbar puncture, in which case the gradual injection of air through the syringe 3l into the spinal canal permits the spinal fluid to out through the regulator from channel 2E ci' needle 24. rlhe flow ci air bubbles entering through one of said channels is under controlled pressure by the promanipulation of the iluid control regulator through channel 25, thereby balancing the pressure oi' spinal iuid coming from the body through channel 25 of the needle. This sp al fluid may be collected in syringe or the spinal fluid can be measured in order to insure that there is not any great diierence in displacement of the spinal huid by air.

It will be noted that the device herein described can be 'used for puncturing various parts of the body such as the joint cavities, sinuses, abscesses, arteries and veins and that in the hands of the physician can be of great importance and assistance to him in alleviating pain in the body or in assisting him to obtain fluids for analysis and proper diagnosis.

While a preferred embodiment of my invention has been described in connection with the accompanying drawings, it is understood that various changes or modifications as to form, arrangement of parts, and use of materials, may made without departing from the spirit and scope of the invention as claimed.

Iclaim:

l. Medical apparatus for injecting into and withdrawing fluids from the body, comprising a body member having a three-way passage and a needle with a multiple channel in communication with said passage, operable means for selectively passing fluid through the passage, sclectively rotatable plug means for directing the flow of iluids through the body member, and means attachable to the body member to regulate the ow of uid through the body member into one of the channels of the needle, said needle having a channel with an external side opening disposed short of the puncturing end thereof and being concentric with respect to the axis of the needle.

2. Medical device for puncturing the surface of the body at anydesir'ed area, comprising ay body member having a plurality of passages, a multiple channeled needle integral with the body member, means in the body member for controlling the direction of passage oi iiuids through the body member, uid control regulating means in connection with the body member, to permit the flow of a duid therethrough into one of the channels of the needle, as iluid is withdrawn from the body through the other channel and directed through the body member by said means in the body member.

y 3. Medical device for injecting uids into the body while simultaneously extracting a iiuid of a different type from the body, comprising a body member having a plurality of passages therein and a multi-channeled needle integral therewith, means insertible into the body member for controlling the direction of now of iuids through the passages of the body member, a plurality of syringes each in connection with the body member passages respectively, and sealing means for the body member and one of the channels of the needle said needle having a channel with an external side opening disposed short of the puncturing end thereof and being concentric with respect to the axis of the needle.

4. Medical device for injecting fluids into the body while simultaneously extracting a iluid of a diierent type from the body, comprising a body member having a plurality of passages therein and a multi-channeled needle integral therewith, means insertible into the body member for controlling the direction of flow of fluids through the passages of the body member, a plurality of syringes each in connection with the body member passages respectively, and a fluid passage regulator in connection with the body member for permitting the direct ow of fluid through the body member into one of the channels of the needle.

5. Medical device for simultaneously injecting into and extracting uids from the body, comprising a body member having a plurality of delivery passages and a dual channeled needle integral with the body member, one of the delivery passages directly communicating with one of the channels of the needle, operable means in the bodymember for selectively directing the flow of fluids through the body member and the needle, and a duid passage regulator in connection with the deliverypassage directly communieating with the channel of the needle.

6. Medical device according to claim 5, in which one of the channels of the needle directly communicating with the delivery passage of the body member is provided with a side opening at vthe puncturing end thereof, while the other channel has an opening in alignment with the puncturing end and communicates with the other delivery passages in the body member via the operable means in the body member.

7. A device according to claim 6, in which the operable means is adapted to selectively direct the fluid from one of the channels 0f the needle through a plurality of the delivery passages and vice versa, and the openings of the 6 channels in the puncturing end of the needle are in substantially the same plane perpendicular to the axis of the needle.

8. Medical device for puncturing the surface of the body at any desired area to permit simultaneous injection and extraction of fluids from the body, comprising a body' member having a plurality of delivery passages and a needle integral therewith, said needle having two independent channels, one of which directly communicates with one of the delivery passages, manually rotatable plug means insertible into said body member adapted to intercommunicate the other channel of the needle with the remaining delivery passages, and manually operable fluid passage regulating means in connection with the rst named channel for controlling the flow' of duid into the channel into the body, said channel being provided with a side opening at the puncturing end thereof.

9. A device according to claim 8, in which there is provided a closing member adapted to be inserted into the delivery passage and channel directly communicating therewith, said member having a flexible member extending the length of the channel and a head adapted to t into and seal the delivery passage.

10. Medical apparatus for injecting into and abstracting fluids from the body, comprising a three-way body member, a multiple-way plug in said body member for selectively directing iuid into or out of any one of the ways of said body member, a needle extending from said body member, uid regulating and control means in connection with said body member, and a plurality of syringe members for attachment to said body member, said needle having a pair of independent channels one of which is in communication with the multiple-way plug and the other is in direct communication with the control means, said last named channel being closed at the puncturing end of the needle but opened to the side thereof.

QUANG HSI HU.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 350,895 Ruault Oct. 12, 1886 1,109,626 Davis Sept. l., 1914 1,209,846 Kells Dec. 26, 1916 1,266,228 De Vilbiss May 14, 1918 1,402,011 Ostrov Jan. 3, 1922 1,553,859 Hein Sept. 15, 1925 1,842,134 Waite Jan. 19, 1932` 1,943,120 Kabnick Jan. 9, 1934 2,137,132 Cooley NOV. 15, 1938 FOREIGN PATENTS Number Country Date 446,818 Germany July 11, 1927 575,559 France Aug. 1, 1924

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Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646042A (en) * 1951-05-18 1953-07-21 Hu Quang Hsi Medical apparatus
US3626928A (en) * 1970-06-22 1971-12-14 Becton Dickinson Co Intrauterine washing apparatus
US3670729A (en) * 1968-09-19 1972-06-20 Alan E C Bennett Transfusion needles
US3921977A (en) * 1974-04-22 1975-11-25 All American Maintenance Inc Tennis ball sealing and inflation means
US3949748A (en) * 1974-09-26 1976-04-13 Oscar Malmin Injection syringe having aspirating and metering capabilities
US3976278A (en) * 1971-12-22 1976-08-24 The Kendall Company Valve assembly
US4014333A (en) * 1975-09-22 1977-03-29 Mcintyre David J Instrument for aspirating and irrigating during ophthalmic surgery
US4134402A (en) * 1976-02-11 1979-01-16 Mahurkar Sakharam D Double lumen hemodialysis catheter
US4403983A (en) * 1981-11-06 1983-09-13 Shiley Incorporated Dual lumen subclavian cannula
US4512768A (en) * 1982-09-10 1985-04-23 Avvari Rangaswamy Analgesic syringe
US4543087A (en) * 1983-11-14 1985-09-24 Quinton Instrument Company Double lumen catheter tip
US4568329A (en) * 1982-03-08 1986-02-04 Mahurkar Sakharam D Double lumen catheter
US4583968A (en) * 1983-10-03 1986-04-22 Mahurkar Sakharam D Smooth bore double lumen catheter
US4623327A (en) * 1985-02-12 1986-11-18 Mahurkar Sakharam D Method and apparatus for using dual-lumen catheters for extracorporeal treatment
US4626240A (en) * 1981-11-06 1986-12-02 Shiley Incorporated Dual lumen subclavian cannula
WO1986006968A1 (en) * 1985-05-24 1986-12-04 John Lui Yovich Follicle aspiration/flushing needles
US4692141A (en) * 1982-03-08 1987-09-08 Mahurkar Sakharam D Double lumen catheter
US4770652A (en) * 1985-02-12 1988-09-13 Mahurkar Sakharam D Method and apparatus for using dual-lumen catheters for extracorporeal treatment
US4772268A (en) * 1984-05-25 1988-09-20 Cook Incorporated Two lumen hemodialysis catheter
US4808155A (en) * 1986-02-27 1989-02-28 Mahurkar Sakharam D Simple double lumen catheter
US4819653A (en) * 1986-04-11 1989-04-11 Lloyd A. Marks Multi-function fluid communication control system
US4935008A (en) * 1988-07-20 1990-06-19 Lewis Jr Ronald L Double lumen introducing needle
US4950230A (en) * 1987-03-19 1990-08-21 Delmed, Inc. Method and apparatus for bagless continuous ambulatory peritoneal dialysis
US5053004A (en) * 1990-08-24 1991-10-01 Medical Components, Inc. Catheter having two coaxial lumens
US5122121A (en) * 1990-08-30 1992-06-16 E-Z-Em, Inc. Safety needle assembly
US5197951A (en) * 1983-12-14 1993-03-30 Mahurkar Sakharam D Simple double lumen catheter
US5207643A (en) * 1991-05-08 1993-05-04 Ballard Medical Products Multi-lumen-catheter flow valve system
US5221255A (en) * 1990-01-10 1993-06-22 Mahurkar Sakharam D Reinforced multiple lumen catheter
US5312375A (en) * 1993-06-28 1994-05-17 Simon Gurmarnik Set for spinal anesthesia
US5352215A (en) * 1992-08-26 1994-10-04 Scimed Life Systems, Inc. Y-adapter with a sideport radius
US5374245A (en) * 1990-01-10 1994-12-20 Mahurkar; Sakharam D. Reinforced multiple-lumen catheter and apparatus and method for making the same
US5690642A (en) * 1996-01-18 1997-11-25 Cook Incorporated Rapid exchange stent delivery balloon catheter
US5735813A (en) * 1996-10-23 1998-04-07 Danron, Inc. Double lumen introducing needle
US5797869A (en) * 1987-12-22 1998-08-25 Vas-Cath Incorporated Multiple lumen catheter
US20090182260A1 (en) * 2006-10-10 2009-07-16 Ronald Timothy R Dual-passage surgical device
US20100130916A1 (en) * 2008-11-26 2010-05-27 Yaki Stern Apparatus for transportation of oxygen to implanted cells
US20100217179A1 (en) * 2009-02-20 2010-08-26 Baxter International Inc. Bulk delivery peritoneal dialysis system and method
US20110054387A1 (en) * 2009-08-31 2011-03-03 Jacob Stern Oxygen Supply For Implantable Medical Device
US20110165219A1 (en) * 2008-09-17 2011-07-07 Beta O2 Technologies Ltd. Optimization of alginate encapsulation of islets for transplantation
US7998106B2 (en) * 2004-05-03 2011-08-16 Thorne Jr Gale H Safety dispensing system for hazardous substances
US8277830B2 (en) 2009-01-29 2012-10-02 Forsight Vision4, Inc. Posterior segment drug delivery
US8475403B2 (en) 2010-08-03 2013-07-02 Cook Medical Technologies Llc Aspirating and injecting device with biased closed distal opening
US8486052B2 (en) 2001-06-12 2013-07-16 The Johns Hopkins University School Of Medicine Reservoir device for intraocular drug delivery
US8623395B2 (en) 2010-01-29 2014-01-07 Forsight Vision4, Inc. Implantable therapeutic device
US20140213974A1 (en) * 2013-01-25 2014-07-31 Acist Medical Systems, Inc. Regulating flow paths in a medical injection system
US8821431B2 (en) 2007-09-07 2014-09-02 Beta O2 Technologies Ltd. Air gap for supporting cells
US8905963B2 (en) 2010-08-05 2014-12-09 Forsight Vision4, Inc. Injector apparatus and method for drug delivery
US9446168B2 (en) 2010-06-07 2016-09-20 Beta-O2 Technologies Ltd. Multiple-layer immune barrier for donor cells
US9474756B2 (en) 2014-08-08 2016-10-25 Forsight Vision4, Inc. Stable and soluble formulations of receptor tyrosine kinase inhibitors, and methods of preparation thereof
US9492315B2 (en) 2010-08-05 2016-11-15 Forsight Vision4, Inc. Implantable therapeutic device
US9526654B2 (en) 2013-03-28 2016-12-27 Forsight Vision4, Inc. Ophthalmic implant for delivering therapeutic substances
US9883968B2 (en) 2011-09-16 2018-02-06 Forsight Vision4, Inc. Fluid exchange apparatus and methods
US9968603B2 (en) 2013-03-14 2018-05-15 Forsight Vision4, Inc. Systems for sustained intraocular delivery of low solubility compounds from a port delivery system implant
US10010448B2 (en) 2012-02-03 2018-07-03 Forsight Vision4, Inc. Insertion and removal methods and apparatus for therapeutic devices

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US1553859A (en) * 1924-08-30 1925-09-15 George N Hein Syringe
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US1842134A (en) * 1927-09-24 1932-01-19 Antidolor Mfg Co Inc Filling head
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Publication number Priority date Publication date Assignee Title
US350895A (en) * 1886-10-12 Bert kuatjxt
US1109626A (en) * 1913-04-05 1914-09-01 Frigid Fluid Company Arterial tube.
US1209846A (en) * 1916-03-04 1916-12-26 Charles Edmund Kells Surgical cleansing apparatus.
US1266228A (en) * 1916-06-16 1918-05-14 De Vilbiss Mfg Co Combined aspirating and vaporizing instrument.
US1402011A (en) * 1919-12-11 1922-01-03 Ostrov Abram Lipman Hypodermic syringe
FR575559A (en) * 1923-03-24 1924-08-01 Collin Et Cie A surgical instrument for carbonated punctures and insufflations
DE446818C (en) * 1923-07-19 1927-07-11 Hermann Weyl Dr Nadelfoermige cannula
US1553859A (en) * 1924-08-30 1925-09-15 George N Hein Syringe
US1842134A (en) * 1927-09-24 1932-01-19 Antidolor Mfg Co Inc Filling head
US1943120A (en) * 1930-05-21 1934-01-09 Kabnick Stuart Hypodermic syringe
US2137132A (en) * 1937-09-17 1938-11-15 Kenneth L Cooley Duplex needle

Cited By (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646042A (en) * 1951-05-18 1953-07-21 Hu Quang Hsi Medical apparatus
US3670729A (en) * 1968-09-19 1972-06-20 Alan E C Bennett Transfusion needles
US3626928A (en) * 1970-06-22 1971-12-14 Becton Dickinson Co Intrauterine washing apparatus
US3976278A (en) * 1971-12-22 1976-08-24 The Kendall Company Valve assembly
US3921977A (en) * 1974-04-22 1975-11-25 All American Maintenance Inc Tennis ball sealing and inflation means
US3949748A (en) * 1974-09-26 1976-04-13 Oscar Malmin Injection syringe having aspirating and metering capabilities
US4014333A (en) * 1975-09-22 1977-03-29 Mcintyre David J Instrument for aspirating and irrigating during ophthalmic surgery
US4134402A (en) * 1976-02-11 1979-01-16 Mahurkar Sakharam D Double lumen hemodialysis catheter
US4403983A (en) * 1981-11-06 1983-09-13 Shiley Incorporated Dual lumen subclavian cannula
US4626240A (en) * 1981-11-06 1986-12-02 Shiley Incorporated Dual lumen subclavian cannula
US4568329A (en) * 1982-03-08 1986-02-04 Mahurkar Sakharam D Double lumen catheter
US4692141A (en) * 1982-03-08 1987-09-08 Mahurkar Sakharam D Double lumen catheter
US4512768A (en) * 1982-09-10 1985-04-23 Avvari Rangaswamy Analgesic syringe
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