Connect public, paid and private patent data with Google Patents Public Datasets

Filtering blood sucker

Download PDF

Info

Publication number
US3785380A
US3785380A US3785380DA US3785380A US 3785380 A US3785380 A US 3785380A US 3785380D A US3785380D A US 3785380DA US 3785380 A US3785380 A US 3785380A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
blood
sucker
filter
air
case
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
R Brumfield
Original Assignee
R Brumfield
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0023Suction drainage systems
    • A61M1/0056Filters for solid matter
    • 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0023Suction drainage systems
    • A61M1/0039Handpieces
    • 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0023Suction drainage systems
    • A61M1/0039Handpieces
    • A61M1/0041Handpieces with means for varying suction manually
    • A61M1/0047Handpieces with means for varying suction manually by changing the size of a vent
    • 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621Extra-corporeal blood circuits
    • A61M1/3627Degassing devices; Buffer reservoirs; Drip chambers; Blood filters
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S604/00Surgery
    • Y10S604/902Suction wands

Abstract

A blood sucker is connected to the suction side of a peristaltic tube pump, evacuating blood lost by a patient at a surgical site. The air evacuated through the blood sucker when in use can be filtered through a first disposable micropore filter in the sucker, prior to contacting the blood evacuated from the surgical site. The patient blood, clean air and surgical debris are also filtered through a sucker second disposable filter, whose pore apertures are sized to remove the tissue debris from the blood flowing into the sucker. Early removal of tissue debris from patient blood in the blood sucker can slow the initiation of the blood clotting mechanism. The filtered air can decrease the microscopic air contaminants in the filtered blood, which can then be returned to the patient''s circulatory system. An integral plurality of flexible, parallel array blood conductive tubing provide wall stabilized, low turbulence blood flow from the sucker to a cardiotomy reservoir or the like, prior to returning the blood to the patient''s circulation.

Description

United States Patent Brumfield 1 .Han. 15, 1974 FlLTERlNG BLOOD SUCKER [76] Inventor: Robert C. Brumfield, 73 Emerald STRACT Laguna Beach Cahf' 92657 A blood sucker is connected to the suction side of a [22] Fil d; F b, 22, 1972 peristaltic tube pump, evacuating blood lost by a pa- App]. No.: 228,033

Primary Examiner-Charles F. Rosenbaum Attorney-J. L. Jones tient at a surgical site. The air evacuated through the blood sucker when in use can be filtered through a first disposable micropore filter in the sucker, prior to contacting the blood evacuated from the surgical site. The patient blood, clean air and surgical debris are also filtered through a sucker second disposable filter, whose pore apertures are sized to remove the tissue debris from the blood flowing into the sucker. Early removal of tissue debris from patient blood in the blood sucker can slow the initiation of the blood clotting mechanism. The filtered air can decrease the microscopic air contaminants in the filtered blood, which can then be returned to the patients circulatory system. An integral plurality of flexible, parallel array blood conductive tubing provide wall stabilized, low turbulence blood flow from the sucker to a cardiotomy reservoir or the like, prior to returning the blood to the patients circulation.

8 Claims, 10 Drawing Figures PATENIED JAN 1 5 i974 SHEET 2 0f 2 FILTERING BLOOD SUCKER CROSS-REFERENCES TO RELATED APPLICATION This application is related to the following applications filed earlier by the same sole inventor:

US Patent application, Ser. No. 175,182 for BLOOD OXYGENATOR AND THERMOREGU- LATOR APPARATUS by Robert C. Brumfield, filed Aug. 26, 1971;

US. Patent application, Ser. No. 196,458, for

BLOOD OXYGENATOR FLOW GUIDE, by Robert C. Brumfield, filed Nov. 11, 1971;

US. Patent application, Ser. No. 202,779, for TWO- PHASE FLUID FLOW GUIDE FOR BLOOD OX- YGENATOR, By Robert C. Brumfield, filed Nov. 29, 1971; and

Docket No. 158 for LOW PRESSURE HEAT EX- CHANGER FOR OXYGENATED BLOOD, by Robert C. Brunfield, filed Jan. 10, 1972. Brumfield,

Docket No. 160 for CARDIOTOMY RESERVOIR,

by Robert C. Brumfield, filed Jan. 31, 1972.

BACKGROUND OF THE INVENTION The filtering blood sucker is classified in Class 23 Subclass 258.5. The blood sucker is useful in combination with a peristaltic tube pump, evacuating blood lost by a patient at a surgical site.

There can be substantial loss of patient blood during a surgical procedure. A blood sucker is connected to the suction side of a peristaltic tube pump and evacuates patient blood lost, for early processing of the blood and its return to the patients circulatory system. Since the recovered blood can contain surgical tissue debris, the blood can initiate the clotting mechanism. By removing the tissue debris from the recovered blood as quickly as possible by the filtering blood sucker, it is possible to decrease the risk of clot formation in the patient, with a subsequent more favorable patient progno- SIS.

SUMMARY OF THE INVENTION The filtering blood sucker is connected to the suction side ofa peristaltic tube pump and evacuates blood lost in a body cavity by a patient during a surgical operation. The blood sucker evacuates air through its sucker vent as the blood sucker lies operatively connected to the peristaltic pump, prior to its actual use on a patient. The surgeon grips the blood sucker and applies a finger, closing the air vent aperture and causing the sucker to evacuate blood, air, surgical tissue debris and fluids from the surgical site. The air evacuated through the sucker while operatively connected, but not in surgical use, can be filtered through a disposable microporous filter secured in the sucker, cleaning the air. Thus the blood contamination from the air is greatly reduced. The blood sucker positively contains a second disposable open pore foam filter whose pore apertures are sized to remove tissue debris from the blood flowing into the sucker. The pore apertures are sized to remove the tissue debris, without removing the formed elements of the blood and altering the homogeneity of the blood. In the sucker the pair of filters, the micropore filter for air and the second disposable foam filter for the patients blood, are physically separated. The air enters through the blood sucker air vent and the three-phase mixture of blood, air, and tissue debris enters through the surgical evacuating tube also on the suction side of the blood sucker. Alternatively, the blood sucker can have only a disposable open pore foam filter sleeve means for the removal of surgical tissue debris from the evacuated three-phase mixture of blood, air and tissue debris, omitting the microporous air filter.

Other objects and advantages of this invention can be found in the specification and drawings appended to this application.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic illustration of the blood sucker of this invention connected in combination with the suction side of the peristaltic tube pump.

FIG. 2 is an elevational perspective partial sectional view of one blood sucker modification incorporating an open pore foam filter sleeve.

FIG. 3 is an elevational perspective view of a filter frame of this invention useful in the blood sucker illustrated in FIG. 2.

FIG. 4 is an elevational perspective view of a filter sleeve useful in the blood sucker illustrated in FIG. 2.

FIG. 5 illustrates a further detail of the attachment of the filter sleeve to the filter frame as shown in FIG. 2.

FIG. 6 is a perspective elevational view illustrating a single use integral component of a blood sucker incorporating a microporous air filter and an open pore foam blood filter of this invention.

FIG. 7 illustrates in perspective elevational view an assembled blood sucker of this invention incorporating the disposable blood sucker insert of FIG. 6 of this invention.

FIG. 8 is a detailed view of the simple blood sucker case closure for attaching and sealing a disposable blood sucker insert of FIG. 6 into the blood sucker product illustrated in FIG. 7.

FIGS. 9A and 9B illustrate the construction of the integral plurality of blood sucker tubes, providing separation and removal of air from the blood sucker.

THE PREFERRED EMBODIMENT OF THE INVENTION Referring to the schematic view of FIG. 1 in detail, the blood sucker 10 is shown connected by blood conductive tubing 11 to the roller pump 12, which has a peristaltic pump suction side 13 and a pump pressure side 14, as the pump rotates in a direction 15. The suction side 16 of the blood sucker l0 accepts a threephase flow of blood, air and surgical tissue debris intake flowing through the pump in the direction 17 and venting from the pump at 18 into a cardiotomy reservoir, or the like. In operative procedure, the vent 19 on the blood sucker 10 is closed by an operators finger to produce evacuation through the sucker It) in the direc' tion 16.

Referring to FIG. 2 in detail, a blood sucker 20 of this invention has a surgical evacuating tube 21 disposed on the suction side of the sucker 20 and secured to a tubular plastic case 22. The screw cap closure 23 closes the blood sucker 20. The air vent 241 penetrates the case 22 and is equivalent to the air vent 19 of blood sucker 10. The pump evacuation tube 25 is equivalent to the blood conductive tubing 11. Disposed internally in the tubular plastic case 22 is the open pore foam filter sleeve 26 having a closed filter terminus 27. The tubular case 22 has a closed case terminus 28 to which the surgical evacuating tube 21 is attached. A filter frame 29 supports the porous foam filter sleeve 26, the filter frame 29 having a frame terminus closure 30. The porous foam filter sleeve 26 covers the filter frame 29 and is secured to the filter frame closure 30 by the wire clamp ring 32. The filter frame exit conduit 31 provides a filter evacuation aperture 33 in the frame closed end 30. The exit conduit 31 is secured in the exterior evacuating means tube 25.

Further details of the filter frame 29 are illustrated in FIG. 3, wherein the filter frame members 29 are shown to be connected by a crossed set of frame members 34, and all are integral with the filter frame closure 30. The filter frame exit conduit 31 is integrally secured to the closed end 30, providing a filter evacuating aperture 33. A securing groove 36 is provided around the end 30.

The porous foam filter sleeve 26 is shown in detail in FIG. 4, having a closed filter terminus 27 and an open filter sleeve terminus 35. Further, in FIG. is shown the details of the conventional wire clamp ring 32 which is secured to the porous foam filter terminus 35, securing the sleeve 26 in the groove 36 of the closed terminus 30.

Referring to FIG. 6 in detail, the single use blood sucker tubular insert unit 60 is shown to have triangular shape support sides 61 and 62 and a triangular central partition 63. A plurality of supportive ribs 64 are secured across the members 61, 62 and 63, providing a pair of oppositely disposed frame plate support areas 100 and 101. An evacuating aperture 65 forms one end of the unit 60 and a support bracket 66 forms the other insert end. On the top surface of the blood sucker unit 60 is disposed a microporous filter sheet 67 sealed on the frame plate support area 100 formed on the pair of edges of the triangular sides 61 and 62. A porous polyurethane foam filter sheet 68 is sealed on the frame plate support area 101 formed on the pair of bottom edges of the triangular shape support sides 61 and 62. The filter sheet 68 is permeable to whole blood, and filters out surgical debris and the like. The bracket 66 supports a bond 69 of the microporous filter sheet 67 and the foam sheet filter 68, providing an impervious seal through which blood does not flow.

Referring to FIG. 7 in detail, the tubular plastic case 70 encloses the blood sucker insert unit 60, and has an evacuating closure 71 secured to the case 70. An air vent 72 is covered by the surgeons finger to place the complete blood sucker unit 73 in operation. Prior to the use of the blood sucker unit 73, room air is sucked through the air vent 72 by a peristaltic pump unit 12 or the like. The air sucked into the blood sucker 73 through the vent 72 is filtered through the microporous filter sheet 67, thus filtering out bacterial, pollen and other types of airborne contaminants from the remainder of the blood sucker unit 73. When the surgeon closes the air vent 72 with a finger, and places the evacuation tube in the patients body cavity, the three-phase mixture of blood, air and surgical tissue debris are evacuated through the tube 74 into the blood reservoir 75 and thence into the filtered blood reservoir 76 where the filtered blood 77 and air 78 are removed through the blood sucker case closure 71. In practice the inlet blood and tissue reservoir 75 traps the surgical tissue debris, passing whole blood through the foam sheet filter 68 into the filtered blood reservoir 76. The

blood sucker insert unit 60 is dimensioned to fit snugly in the case 70, the bonded joint 69 contacts and imperviously seals the case at the case terminus 79, providing a separate air reservoir 80 disposed above the microporous filter sheet 67.

FIG. 8 illustrates in detail the seal and the mechanical securing means provided by the sealing bead 8] disposed on the blood sucker case closure 71. By simply inserting the blood sucker insert unit 60 into the case 70 and pushing in the closure 71, one can make an hermetic and mechanical joint, sealing in the insert 60. A further modification of the blood sucker unit 73 is provided by the fine pore sponge cartridge 82 secured in the air aperture 83, through which the air 78 exits through exit conduit 84. The polyurethane sponge cartridge 82 is treated with a thin film of the silicone composition which induces blood-air foam collapse. Thus, any blood-air foam touching 82 is induced to collapse and air passes through the polyurethane sponge. The silicone treated sponge cartridge 82 will not readily pass whole blood, so the blood is entrained in the pair of apertures 85 and 86 and exits through conduits 87 and 88.

FIG. 9 illustrates an integral plurality of flexible, conductive blood tubing which are useful in inducing laminar blood-air slug flow in a roller peristaltic pump of the illustrated type 12. The unit tube 90 is secured to the exit conduit 84 and vents most of the air from the sucker 73. The pair of unit tubes 91 and 92 carry exiting blood 77 in the blood-air slug flow from the sucker 73. The tubes 91 and 92 are specifically diametrically sized to provide laminar slug flow as taught in applicants earlier teaching of US. Ser. Nos. l75,l82 and 196,458. The unit tubes 90, 91 and 92 are integrally connected by the flat continuous rubber strips 93 and 94. Thus the three tubes can be disposed parallel and flat, as shown by the fragmentary view of FIG. 9B, and placed in a peristaltic roller pump for operational blood processing.

It is basic to the filtering blood sucker of this invention that a porous filter structure is embodied which has pore structure sized to filter the formed elements of whole blood, ranging up to I00 micron average particle diameter. The porous polyurethane foam filter sheet 68 is sized to remove surgical tissue debris and the like of larger particle size, retaining these large particles on the reservoir 75 side of the foam filter sheet. In a further modification of this invention an open pore foam filter permeable to whole blood can be embodied in the case, to filter out the surgical tissue debris which enters the blood sucker.

It is desirable to provide a simple frame structure of a low cost, blood compatible plastic which can be suitably enclosed with a foam filter sleeve, filter sheet or other similar structure for the filtering of whole blood. The microporous filter paper typically has pore structure of less than 1 micron, such as 0.5 microns, or the like. The filter sheets, microporous or foam filter, can be sealed to the filter frame structures by heat sealing, cementing or the like. The porous polyurethane foam filter may be treated with a well known silicone defoaming composition to provide a very thin silicone film on the porous foam which will tend to collapse the air-blood foam on contacting the filter. Thus the blood sucker filtering unit can provide the first step in the defoaming of filtered blood and air phases increasing the rate of blood processing for rapid return to the patient's extra-corporeal circulation.

Obviously many modifications and variations in the improvement in the filtering blood sucker can be made in the light of the above illustrations, embodiment and teaching. it is therefore understood that within the scope of the appended claims the invention may be practiced otherwise than has been specifically described.

I claim:

l. in a blood sucker having a case forming a handpiece, said case having an inlet, an evacuating tube and an air vent, the improvement comprising:

an open pore plastic foam filter mat operatively disposed inside said blood sucker case providing pores sized to pass particles less than 100 micron average diameter, said filter mat compatible with blood, said filter mat filtering all blood, air and surgical debris passing into said blood sucker filter case, said filter mat retaining said surgical debris, said blood and air exiting through said filter mat through the sucker case exit conduit.

2. In a blood sucker having a case forming a handpiece, said case having an inlet, an evacuating tube, an air vent, and an exit conduit, the improvement combination comprising:

an open pore plastic foam filter means operatively disposed inside said blood sucker case, said filter means compatible with blood; and,

a support filter frame positioned inside said blood sucker case providing a support structure for said filter;

said filter means and support filter frame combination adaptively filtering the whole blood-air foam and surgical tissue debris entering said blood sucker case, retaining said tissue debris in said filter and passing said whole blood and air through the exit conduit of said blood sucker case.

3. The combination with claim 2 wherein the further improvement comprises:

a porous plastic foam sheet filter means having a porous foam filter sleeve having one closed terminus and one open terminus; and,

a support filter frame having a frame supportively positioned inside said filter sleeve, said frame having one terminus closure and an evacuation tube secured to said closure, providing a fluid conductive aperture therein;

said open terminus of said filter sleeve adaptively secured coaxially on said frame terminus closure and said evacuation tube adaptively conductively secured to said blood sucker case exit conduit of said sucker case closure.

4. In a blood sucker having a case forming a handpiece, said case having an inlet, an evacuating tube, and

an air vent, the improvement combination comprising:

a support filter frame having a pair of oppositely dis posed frame plate support areas, said frame closely fitting in said blood sucker case, said frame imperviously partitioning said pair of frame plate support areas from each other;

a microporous filter sheet completely disposed over one of said frame plate support areas having pores less than one micron average diameter;

an open pore plastic foam sheet completely disposed over the second of said pair of frame plate support areas, providing pores sized to pass particles less than micron average diameter;

said microporous filter sheet confronting the blood sucker case air vent and spaced therefrom, providing a separate air reservoir in said blood sucker case;

said plastic foam sheet confronting the blood sucker case evacuation tube, providing a separate reservoir for blood, air and surgical tissue debris in said blood sucker case; and,

a blood sucker case closure conductively sealing said blood sucker case exit terminus, providing an exit conduit for the blood and air filtered through said plastic foam sheet on evacuation of said blood sucker case, retaining said surgical tissue debris in said sucker case.

5. The combination of claim 4 wherein the further improvement combination comprises:

a blood sucker case closure having at least two exit conduits disposed thereon, each one of said conduits geometrically disposed providing dominantly separate air and blood evacuation through a separate conduit.

6. The combination of claim 4 wherein the further improvement combination comprises: 7

a blood sucker case closure having three exit conduits disposed thereon, one exit conduit sized and disposed to conduct predominantly air, and a pair of exit conduits sized and disposed to predominantly conduct laminar blood-air slug flow in exit conduits.

7. The combination with claim 4 wherein the further improvement comprises:

an open pore, sponge cartridge, having a blood impermeable sponge surface and a pore size less than 1 micron, disposed in said air exit conduit, providing a filtering air exit separating air from the bloodair foam.

8. The combination with claim 4 wherein the further improvment comprises:

an open pore polyurethane foam, having a blood compatible surface disposed thereon.

Claims (8)

1. In a blood sucker having a case forming a handpiece, said case having an inlet, an evacuating tube and an air vent, the improvement comprising: an open pore plastic foam filter mat operatively disposed inside said blood sucker case providing pores sized to pass particles less than 100 micron average diameter, said filter mat compatible with blood, said filter mat filtering all blood, air and surgical debris passing into said blood sucker filter case, said filter mat retaining said surgical Debris, said blood and air exiting through said filter mat through the sucker case exit conduit.
2. In a blood sucker having a case forming a handpiece, said case having an inlet, an evacuating tube, an air vent, and an exit conduit, the improvement combination comprising: an open pore plastic foam filter means operatively disposed inside said blood sucker case, said filter means compatible with blood; and, a support filter frame positioned inside said blood sucker case providing a support structure for said filter; said filter means and support filter frame combination adaptively filtering the whole blood-air foam and surgical tissue debris entering said blood sucker case, retaining said tissue debris in said filter and passing said whole blood and air through the exit conduit of said blood sucker case.
3. The combination with claim 2 wherein the further improvement comprises: a porous plastic foam sheet filter means having a porous foam filter sleeve having one closed terminus and one open terminus; and, a support filter frame having a frame supportively positioned inside said filter sleeve, said frame having one terminus closure and an evacuation tube secured to said closure, providing a fluid conductive aperture therein; said open terminus of said filter sleeve adaptively secured coaxially on said frame terminus closure and said evacuation tube adaptively conductively secured to said blood sucker case exit conduit of said sucker case closure.
4. In a blood sucker having a case forming a handpiece, said case having an inlet, an evacuating tube, and an air vent, the improvement combination comprising: a support filter frame having a pair of oppositely disposed frame plate support areas, said frame closely fitting in said blood sucker case, said frame imperviously partitioning said pair of frame plate support areas from each other; a microporous filter sheet completely disposed over one of said frame plate support areas having pores less than one micron average diameter; an open pore plastic foam sheet completely disposed over the second of said pair of frame plate support areas, providing pores sized to pass particles less than 100 micron average diameter; said microporous filter sheet confronting the blood sucker case air vent and spaced therefrom, providing a separate air reservoir in said blood sucker case; said plastic foam sheet confronting the blood sucker case evacuation tube, providing a separate reservoir for blood, air and surgical tissue debris in said blood sucker case; and, a blood sucker case closure conductively sealing said blood sucker case exit terminus, providing an exit conduit for the blood and air filtered through said plastic foam sheet on evacuation of said blood sucker case, retaining said surgical tissue debris in said sucker case.
5. The combination of claim 4 wherein the further improvement combination comprises: a blood sucker case closure having at least two exit conduits disposed thereon, each one of said conduits geometrically disposed providing dominantly separate air and blood evacuation through a separate conduit.
6. The combination of claim 4 wherein the further improvement combination comprises: a blood sucker case closure having three exit conduits disposed thereon, one exit conduit sized and disposed to conduct predominantly air, and a pair of exit conduits sized and disposed to predominantly conduct laminar blood-air slug flow in exit conduits.
7. The combination with claim 4 wherein the further improvement comprises: an open pore, sponge cartridge, having a blood impermeable sponge surface and a pore size less than 1 micron, disposed in said air exit conduit, providing a filtering air exit separating air from the blood-air foam.
8. The combination with claim 4 wherein the further improvment comprises: an open pore polyurethane foam, having a blood compatible surface disposed thereon.
US3785380A 1972-02-22 1972-02-22 Filtering blood sucker Expired - Lifetime US3785380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US22803372 true 1972-02-22 1972-02-22

Publications (1)

Publication Number Publication Date
US3785380A true US3785380A (en) 1974-01-15

Family

ID=22855477

Family Applications (1)

Application Number Title Priority Date Filing Date
US3785380A Expired - Lifetime US3785380A (en) 1972-02-22 1972-02-22 Filtering blood sucker

Country Status (1)

Country Link
US (1) US3785380A (en)

Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863624A (en) * 1973-06-15 1975-02-04 Hans Gram Vacuum curettage device
US3929133A (en) * 1974-11-20 1975-12-30 Int Pregnancy Advisory Service Apparatus for removing, washing and displaying fragmentary products of operative procedures
US3965896A (en) * 1974-06-17 1976-06-29 Swank Roy L Blood autotransfusion method and apparatus
US4393879A (en) * 1980-04-11 1983-07-19 Milex Products, Inc. Tissue-collecting apparatus
US4463616A (en) * 1982-03-24 1984-08-07 Instrumentation Laboratory Inc. Sample handling apparatus
US4468217A (en) * 1982-07-09 1984-08-28 Kuzmick Kenneth M Surgical suction tip with filter
US4801292A (en) * 1986-06-24 1989-01-31 Bard Limited Medical pump for debris collection
US4857063A (en) * 1988-01-19 1989-08-15 Usa Medical Surgical aspirator
US4886492A (en) * 1987-03-24 1989-12-12 Brooke Gerard M Surgical suction tip with filter
US5197485A (en) * 1991-10-15 1993-03-30 Pilling Co. Method and apparatus for sampling aortic plaque
WO1993011721A1 (en) * 1991-12-16 1993-06-24 Schmalzried Thomas P Apparatus for joint fluid decompression and filtration
US5421824A (en) * 1988-02-10 1995-06-06 Boston Scientific Corporation Bladder evacuator
US5630939A (en) * 1995-09-15 1997-05-20 Imtec Corporation Filter assembly device for use in surgical aspirated suction
DE19545404A1 (en) * 1995-12-06 1997-06-12 Kevin Business Corp Withdrawal of air from air-containing blood
EP0846469A2 (en) 1996-12-05 1998-06-10 Kevin Business Corporation Blood suction device
DE19650407A1 (en) * 1996-12-05 1998-06-10 Kevin Business Corp Blood gas separation processes and dividing device
US5766134A (en) * 1995-07-18 1998-06-16 Atrion Medical Products, Inc. Autogenous bone specimen collector
EP0876822A2 (en) 1997-05-09 1998-11-11 Kevin Business Corporation Process and apparatus for separating gas from blood
US6068477A (en) * 1999-07-06 2000-05-30 Mahlmann; Lee A. Foam-cushioned aspirator
US6083175A (en) * 1994-09-20 2000-07-04 Bladhs Medical Ab Method and apparatus for collecting fragments of bone tissue
US6406454B1 (en) * 2000-03-14 2002-06-18 Mohammed Ali Hajianpour Surgical suction probe system with an easily cleaned internal filter
DE10162931A1 (en) * 2001-12-20 2003-07-17 Fraunhofer Ges Forschung Device for separating inhomogeneous tissue, especially bone and soft tissue, comprises a container, an actuator, and devices for mechanically separating one tissue type from the other tissue type
US20040049128A1 (en) * 2000-11-06 2004-03-11 Miller Michael E. Biopsy apparatus
US20050054995A1 (en) * 2003-09-09 2005-03-10 Barzell Winston E. System and method for irrigation and tissue evacuation and collection
US6908455B2 (en) 2000-03-14 2005-06-21 Mohammed Ali Hajianpour Surgical suction probe system with an easily cleaned internal filter
US20060129062A1 (en) * 2000-11-06 2006-06-15 Nicoson Zachary R Fluid control element for biopsy apparatus
US20060258956A1 (en) * 2004-05-21 2006-11-16 Haberstich Wells D MRI Biopsy Device
US20060260994A1 (en) * 2005-05-18 2006-11-23 Mark Joseph L Selectively openable tissue filter
US20080287826A1 (en) * 2004-07-09 2008-11-20 Bard Peripheral Vasular, Inc. Transport System for Biopsy Device
US20090088663A1 (en) * 2007-10-01 2009-04-02 Miller Michael E Surgical system
US20110004119A1 (en) * 2009-07-01 2011-01-06 Michael Hoffa Surgical system
US20110105946A1 (en) * 2009-10-31 2011-05-05 Sorensen Peter L Biopsy system with infrared communications
US20110208085A1 (en) * 2005-01-31 2011-08-25 C.R. Bard, Inc. Quick cycle biopsy system
US20120065541A1 (en) * 2009-04-15 2012-03-15 Videbaek Karsten Biopsy apparatus having integrated fluid management
US8690793B2 (en) 2009-03-16 2014-04-08 C. R. Bard, Inc. Biopsy device having rotational cutting
US8721563B2 (en) 2005-08-10 2014-05-13 C. R. Bard, Inc. Single-insertion, multiple sample biopsy device with integrated markers
US8728004B2 (en) 2003-03-29 2014-05-20 C.R. Bard, Inc. Biopsy needle system having a pressure generating unit
US8771200B2 (en) 2005-08-10 2014-07-08 C.R. Bard, Inc. Single insertion, multiple sampling biopsy device with linear drive
US8808197B2 (en) 2009-10-29 2014-08-19 Bard Peripheral Vascular, Inc. Biopsy driver assembly having a control circuit for conserving battery power
US8808200B2 (en) 2007-10-01 2014-08-19 Suros Surgical Systems, Inc. Surgical device and method of using same
US8858463B2 (en) 2007-12-20 2014-10-14 C. R. Bard, Inc. Biopsy device
US8951209B2 (en) 2002-03-19 2015-02-10 C. R. Bard, Inc. Biopsy device and insertable biopsy needle module
US8951208B2 (en) 2006-08-21 2015-02-10 C. R. Bard, Inc. Self-contained handheld biopsy needle
US8961430B2 (en) 2005-08-10 2015-02-24 C.R. Bard, Inc. Single-insertion, multiple sampling biopsy device usable with various transport systems and integrated markers
US9072502B2 (en) 2002-03-19 2015-07-07 C. R. Bard, Inc. Disposable biopsy unit
US9173641B2 (en) 2009-08-12 2015-11-03 C. R. Bard, Inc. Biopsy apparatus having integrated thumbwheel mechanism for manual rotation of biopsy cannula
US9282949B2 (en) 2009-09-01 2016-03-15 Bard Peripheral Vascular, Inc. Charging station for battery powered biopsy apparatus
US9566045B2 (en) 2006-10-06 2017-02-14 Bard Peripheral Vascular, Inc. Tissue handling system with reduced operator exposure
US9638770B2 (en) 2004-05-21 2017-05-02 Devicor Medical Products, Inc. MRI biopsy apparatus incorporating an imageable penetrating portion
US9795365B2 (en) 2004-05-21 2017-10-24 Devicor Medical Products, Inc. MRI biopsy apparatus incorporating a sleeve and multi-function obturator

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449497A (en) * 1946-08-22 1948-09-14 Will W Mcleod Combination aspirator tip
US3191600A (en) * 1962-05-04 1965-06-29 Hazen F Everett Blood suction apparatus
US3324855A (en) * 1965-01-12 1967-06-13 Henry J Heimlich Surgical sponge stick
US3430631A (en) * 1966-01-12 1969-03-04 Daniel J Abramson Surgeon's drain
US3520300A (en) * 1967-03-15 1970-07-14 Amp Inc Surgical sponge and suction device
US3610242A (en) * 1969-02-28 1971-10-05 David S Sheridan Medico-surgical suction systems
US3675653A (en) * 1969-08-15 1972-07-11 Air Shields Wound drainage equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449497A (en) * 1946-08-22 1948-09-14 Will W Mcleod Combination aspirator tip
US3191600A (en) * 1962-05-04 1965-06-29 Hazen F Everett Blood suction apparatus
US3324855A (en) * 1965-01-12 1967-06-13 Henry J Heimlich Surgical sponge stick
US3430631A (en) * 1966-01-12 1969-03-04 Daniel J Abramson Surgeon's drain
US3520300A (en) * 1967-03-15 1970-07-14 Amp Inc Surgical sponge and suction device
US3610242A (en) * 1969-02-28 1971-10-05 David S Sheridan Medico-surgical suction systems
US3675653A (en) * 1969-08-15 1972-07-11 Air Shields Wound drainage equipment

Cited By (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863624A (en) * 1973-06-15 1975-02-04 Hans Gram Vacuum curettage device
US3965896A (en) * 1974-06-17 1976-06-29 Swank Roy L Blood autotransfusion method and apparatus
US3929133A (en) * 1974-11-20 1975-12-30 Int Pregnancy Advisory Service Apparatus for removing, washing and displaying fragmentary products of operative procedures
US4393879A (en) * 1980-04-11 1983-07-19 Milex Products, Inc. Tissue-collecting apparatus
US4463616A (en) * 1982-03-24 1984-08-07 Instrumentation Laboratory Inc. Sample handling apparatus
US4468217A (en) * 1982-07-09 1984-08-28 Kuzmick Kenneth M Surgical suction tip with filter
US4801292A (en) * 1986-06-24 1989-01-31 Bard Limited Medical pump for debris collection
US4886492A (en) * 1987-03-24 1989-12-12 Brooke Gerard M Surgical suction tip with filter
US4857063A (en) * 1988-01-19 1989-08-15 Usa Medical Surgical aspirator
US5421824A (en) * 1988-02-10 1995-06-06 Boston Scientific Corporation Bladder evacuator
US5197485A (en) * 1991-10-15 1993-03-30 Pilling Co. Method and apparatus for sampling aortic plaque
WO1993011721A1 (en) * 1991-12-16 1993-06-24 Schmalzried Thomas P Apparatus for joint fluid decompression and filtration
US5378228A (en) * 1991-12-16 1995-01-03 Schmalzried; Thomas P. Method and apparatus for joint fluid decompression and filtration with particulate debris collection
US6083175A (en) * 1994-09-20 2000-07-04 Bladhs Medical Ab Method and apparatus for collecting fragments of bone tissue
US6468225B1 (en) 1994-09-20 2002-10-22 Astra Tech Ab Method and apparatus for collecting bone tissue fragments
US5766134A (en) * 1995-07-18 1998-06-16 Atrion Medical Products, Inc. Autogenous bone specimen collector
US5630939A (en) * 1995-09-15 1997-05-20 Imtec Corporation Filter assembly device for use in surgical aspirated suction
US5824212A (en) * 1995-12-06 1998-10-20 Kevin Business Corporation Cyclone apparatus for removal of air from air containing blood
DE19545404A1 (en) * 1995-12-06 1997-06-12 Kevin Business Corp Withdrawal of air from air-containing blood
EP0852150A2 (en) 1996-12-05 1998-07-08 Kevin Business Corporation Blood/gas separator and method
DE19650406A1 (en) * 1996-12-05 1998-06-18 Kevin Business Corp Blood extractor
DE19650407A1 (en) * 1996-12-05 1998-06-10 Kevin Business Corp Blood gas separation processes and dividing device
EP0852150B1 (en) * 1996-12-05 2003-03-19 Convergenza Ag Blood/gas separator
US6066111A (en) * 1996-12-05 2000-05-23 Convergenza Ag Method of blood-gas separation device and separating device
EP0846469A2 (en) 1996-12-05 1998-06-10 Kevin Business Corporation Blood suction device
US6312414B1 (en) 1996-12-05 2001-11-06 Alexander Brockhoff Blood-gas separation device
US6827862B1 (en) 1997-05-09 2004-12-07 Alexander Brockhoff Method and device for removing gas from gas containing blood
EP0876822A2 (en) 1997-05-09 1998-11-11 Kevin Business Corporation Process and apparatus for separating gas from blood
DE19719555A1 (en) * 1997-05-09 1998-11-12 Kevin Business Corp Method and apparatus for separating gas from gas-containing blood
US6068477A (en) * 1999-07-06 2000-05-30 Mahlmann; Lee A. Foam-cushioned aspirator
US6406454B1 (en) * 2000-03-14 2002-06-18 Mohammed Ali Hajianpour Surgical suction probe system with an easily cleaned internal filter
US6908455B2 (en) 2000-03-14 2005-06-21 Mohammed Ali Hajianpour Surgical suction probe system with an easily cleaned internal filter
US20090137927A1 (en) * 2000-11-06 2009-05-28 Miller Michael E Biopsy apparatus with vacuum relief
US8986222B2 (en) 2000-11-06 2015-03-24 Hologic, Inc. Biopsy apparatus
US20040049128A1 (en) * 2000-11-06 2004-03-11 Miller Michael E. Biopsy apparatus
US7883476B2 (en) 2000-11-06 2011-02-08 Suros Surgical Systems, Inc. Selectively detachable outer cannula hub
US20060129062A1 (en) * 2000-11-06 2006-06-15 Nicoson Zachary R Fluid control element for biopsy apparatus
US20060155209A1 (en) * 2000-11-06 2006-07-13 Miller Michael E Selectively detachable outer cannula hub
US8167818B2 (en) 2000-11-06 2012-05-01 Suros Surgical Systems, Inc. Biopsy apparatus with vacuum relief
US8764679B2 (en) 2000-11-06 2014-07-01 Suros Surgical Systems, Inc. Biopsy apparatus
US8109886B2 (en) 2000-11-06 2012-02-07 Suros Surgical Systems, Inc. Biopsy apparatus
US7837630B2 (en) 2000-11-06 2010-11-23 Suros Surgical Systems, Inc. Fluid control element for biopsy apparatus
DE10162931B4 (en) * 2001-12-20 2005-11-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for separating biological tissue inhomogeneous
DE10162931A1 (en) * 2001-12-20 2003-07-17 Fraunhofer Ges Forschung Device for separating inhomogeneous tissue, especially bone and soft tissue, comprises a container, an actuator, and devices for mechanically separating one tissue type from the other tissue type
US8951209B2 (en) 2002-03-19 2015-02-10 C. R. Bard, Inc. Biopsy device and insertable biopsy needle module
US9439631B2 (en) 2002-03-19 2016-09-13 C. R. Bard, Inc. Biopsy device and insertable biopsy needle module
US9421002B2 (en) 2002-03-19 2016-08-23 C. R. Bard, Inc. Disposable biopsy unit
US9072502B2 (en) 2002-03-19 2015-07-07 C. R. Bard, Inc. Disposable biopsy unit
US8728004B2 (en) 2003-03-29 2014-05-20 C.R. Bard, Inc. Biopsy needle system having a pressure generating unit
US20050054995A1 (en) * 2003-09-09 2005-03-10 Barzell Winston E. System and method for irrigation and tissue evacuation and collection
US20070213666A1 (en) * 2003-09-09 2007-09-13 Civco Medical Instruments Co., Inc. System and method for irrigation and tissue evacuation and collection
US7172579B2 (en) 2003-09-09 2007-02-06 Civco Medical Instruments Co., Inc. System and method for irrigation and tissue evacuation and collection
US9392999B2 (en) 2004-05-21 2016-07-19 Devicor Medical Products, Inc. MRI biopsy device
US8932233B2 (en) 2004-05-21 2015-01-13 Devicor Medical Products, Inc. MRI biopsy device
US9795365B2 (en) 2004-05-21 2017-10-24 Devicor Medical Products, Inc. MRI biopsy apparatus incorporating a sleeve and multi-function obturator
US20060258956A1 (en) * 2004-05-21 2006-11-16 Haberstich Wells D MRI Biopsy Device
US9504453B2 (en) 2004-05-21 2016-11-29 Devicor Medical Products, Inc. MRI biopsy device
US9638770B2 (en) 2004-05-21 2017-05-02 Devicor Medical Products, Inc. MRI biopsy apparatus incorporating an imageable penetrating portion
US9345458B2 (en) 2004-07-09 2016-05-24 Bard Peripheral Vascular, Inc. Transport system for biopsy device
US9456809B2 (en) 2004-07-09 2016-10-04 Bard Peripheral Vascular, Inc. Tissue sample flushing system for biopsy device
US20080287826A1 (en) * 2004-07-09 2008-11-20 Bard Peripheral Vasular, Inc. Transport System for Biopsy Device
US8926527B2 (en) 2004-07-09 2015-01-06 Bard Peripheral Vascular, Inc. Tissue sample flushing system for biopsy device
US8864680B2 (en) 2004-07-09 2014-10-21 Bard Peripheral Vascular, Inc. Transport system for biopsy device
US8992440B2 (en) 2004-07-09 2015-03-31 Bard Peripheral Vascular, Inc. Length detection system for biopsy device
US9872672B2 (en) 2004-07-09 2018-01-23 Bard Peripheral Vascular, Inc. Length detection system for biopsy device
US9161743B2 (en) 2005-01-31 2015-10-20 C. R. Bard, Inc. Quick cycle biopsy system
US8702622B2 (en) 2005-01-31 2014-04-22 C.R. Bard, Inc. Quick cycle biopsy system
US8702621B2 (en) 2005-01-31 2014-04-22 C.R. Bard, Inc. Quick cycle biopsy system
US20110208085A1 (en) * 2005-01-31 2011-08-25 C.R. Bard, Inc. Quick cycle biopsy system
US7556622B2 (en) * 2005-05-18 2009-07-07 Suros Surgical Systems, Inc. Selectively openable tissue filter
US20060260994A1 (en) * 2005-05-18 2006-11-23 Mark Joseph L Selectively openable tissue filter
US8771200B2 (en) 2005-08-10 2014-07-08 C.R. Bard, Inc. Single insertion, multiple sampling biopsy device with linear drive
US8721563B2 (en) 2005-08-10 2014-05-13 C. R. Bard, Inc. Single-insertion, multiple sample biopsy device with integrated markers
US8961430B2 (en) 2005-08-10 2015-02-24 C.R. Bard, Inc. Single-insertion, multiple sampling biopsy device usable with various transport systems and integrated markers
US8728003B2 (en) 2005-08-10 2014-05-20 C.R. Bard Inc. Single insertion, multiple sample biopsy device with integrated markers
US8951208B2 (en) 2006-08-21 2015-02-10 C. R. Bard, Inc. Self-contained handheld biopsy needle
US9439632B2 (en) 2006-08-21 2016-09-13 C. R. Bard, Inc. Self-contained handheld biopsy needle
US9566045B2 (en) 2006-10-06 2017-02-14 Bard Peripheral Vascular, Inc. Tissue handling system with reduced operator exposure
US20090088663A1 (en) * 2007-10-01 2009-04-02 Miller Michael E Surgical system
US20090088666A1 (en) * 2007-10-01 2009-04-02 Miller Michael E Surgical device
US20090087249A1 (en) * 2007-10-01 2009-04-02 Jake Flagle Adapter assembly
US8202229B2 (en) 2007-10-01 2012-06-19 Suros Surgical Systems, Inc. Surgical device
US8808200B2 (en) 2007-10-01 2014-08-19 Suros Surgical Systems, Inc. Surgical device and method of using same
US20090088664A1 (en) * 2007-10-01 2009-04-02 Miller Michael E Surgical device and method for using same
US8187204B2 (en) 2007-10-01 2012-05-29 Suros Surgical Systems, Inc. Surgical device and method for using same
US8858463B2 (en) 2007-12-20 2014-10-14 C. R. Bard, Inc. Biopsy device
US9775588B2 (en) 2007-12-20 2017-10-03 C. R. Bard, Inc. Biopsy device
US8690793B2 (en) 2009-03-16 2014-04-08 C. R. Bard, Inc. Biopsy device having rotational cutting
US8708930B2 (en) 2009-04-15 2014-04-29 Bard Peripheral Vascular, Inc. Biopsy apparatus having integrated fluid management
US20120065541A1 (en) * 2009-04-15 2012-03-15 Videbaek Karsten Biopsy apparatus having integrated fluid management
US8708928B2 (en) * 2009-04-15 2014-04-29 Bard Peripheral Vascular, Inc. Biopsy apparatus having integrated fluid management
US8708929B2 (en) 2009-04-15 2014-04-29 Bard Peripheral Vascular, Inc. Biopsy apparatus having integrated fluid management
US20110004119A1 (en) * 2009-07-01 2011-01-06 Michael Hoffa Surgical system
US8858464B2 (en) 2009-07-01 2014-10-14 Suros Surgical Systems, Inc. Surgical system
US8529468B2 (en) 2009-07-01 2013-09-10 Suros Surgical Systems, Inc. Surgical system
US9655599B2 (en) 2009-08-12 2017-05-23 C. R. Bard, Inc. Biopsy apparatus having integrated thumbwheel mechanism for manual rotation of biopsy cannula
US9173641B2 (en) 2009-08-12 2015-11-03 C. R. Bard, Inc. Biopsy apparatus having integrated thumbwheel mechanism for manual rotation of biopsy cannula
US9282949B2 (en) 2009-09-01 2016-03-15 Bard Peripheral Vascular, Inc. Charging station for battery powered biopsy apparatus
US8808197B2 (en) 2009-10-29 2014-08-19 Bard Peripheral Vascular, Inc. Biopsy driver assembly having a control circuit for conserving battery power
US20110105946A1 (en) * 2009-10-31 2011-05-05 Sorensen Peter L Biopsy system with infrared communications

Similar Documents

Publication Publication Date Title
US3483867A (en) Artificial glomerulus and a method for treating blood
US3363627A (en) Underwater drainage apparatus
US3295686A (en) Filter unit
US3527572A (en) Apparatus for treating blood
US3463159A (en) Instrument for drainage of the chest
US5258127A (en) Leucocyte depleting filter device and method of use
US4459139A (en) Disposable filter device and liquid aspirating system incorporating same
US5401262A (en) Fluid recovery system
US5624418A (en) Collection and separation device
US8282611B2 (en) Reduced pressure wound treatment system
US4650477A (en) Suction drainage apparatus
US6669905B1 (en) Systems and methods for collecting plasma that is free or virtually free of cellular blood species
US6264890B1 (en) Method and apparatus for collecting and processing blood
US4643713A (en) Venous reservoir
US5127411A (en) Oral appliance for removing aerosols produced during dentistry
US4006745A (en) Autologous transfusion system and method
US4412916A (en) Airless artificial kidney assembly
US3905905A (en) Filter unit
US4047526A (en) Autologous blood system and method
US4976707A (en) Fluid collection, storage and infusion apparatus
US5858015A (en) Container for blood
US5049146A (en) Blood/gas separator and flow system
US4950247A (en) Aspirator for collection of bodily fluids including improved safety and efficiency elements
US5074839A (en) Blood transfer apparatus
US4963134A (en) Laser surgery plume evacuator with aspirator