US2489040A - Holder - Google Patents
Holder Download PDFInfo
- Publication number
- US2489040A US2489040A US647545A US64754546A US2489040A US 2489040 A US2489040 A US 2489040A US 647545 A US647545 A US 647545A US 64754546 A US64754546 A US 64754546A US 2489040 A US2489040 A US 2489040A
- Authority
- US
- United States
- Prior art keywords
- plunger
- holder
- barrel
- fingers
- syringe
- 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
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Classifications
-
- 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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
-
- 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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31501—Means for blocking or restricting the movement of the rod or piston
- A61M2005/3151—Means for blocking or restricting the movement of the rod or piston by friction
-
- 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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31501—Means for blocking or restricting the movement of the rod or piston
- A61M5/31505—Integral with the syringe barrel, i.e. connected to the barrel so as to make up a single complete piece or unit
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/34—Combined diverse multipart fasteners
- Y10T24/3427—Clasp
- Y10T24/3439—Plural clasps
- Y10T24/344—Resilient type clasp
- Y10T24/3444—Circular work engageable
Definitions
- This; invention relates to a structurally and functionally improved holder and in its more specific: aspects aims to provide a unit of this ime fpr'application. to a hypodermic syringe to maintain the; parts of the latter against accidentalv displacement.
- attachments have been provided for syringes which would serve to restrain movements. of the plunger with respect to the barrel except when a deliberate manipulation of these parts occur-red.
- These-attachments have been unsatisfactory for a number of reasons, among which are included the fragile nature of the attachment, the fact that the latter might exert too great or too little a restraining influence, the cost of dies required for production of the device and for various other reasons.
- a holding unit which may be manufactured at low cost and in large quantities; the required die being relatively simple and inexpensive.
- an improved holder which will not be fragile and which may readily be applied to and removed from association with a hypodermic syringe. Additionally when in applied position, the holder will efiectively and properly increase the resistance to movement of the plunger with respect to the barrel to just the extent desired. Accordingly, difficulties will not be experienced due to accidental movements of these parts nor will sufficient resistance be encountered to render the use of the holder objectionable.
- Fig. 1 is a side elevation of a holder applied to a syringe assembly
- Fig. 2 is a plan viewof such holder
- Fig. 3 is a transverse sectional view in enlarged scale taken along the lines 3-3 and in the direction of the arrows as indicated inFig, 1;
- Fig. 4 is a, View similar toFig. 3 but with the plunger of the syringe removed;
- Fig. 5 is a perspective view of the holder deteched from the, syringe assembly. Iii-these viewsit will be-seen that the numeral lfiindicates the barrel ofthe syringe formed of glass orv similar-.material, and which barrel has adjacent itsouter end a: needle-mounting boss or extension H; Adjacent its inner end, it may he formeddvith a flange, the area of which may beadequate to provide ears: for engagement by the fingers of an operator.
- the barrelv lil receives a. plunger, 53, which may have a portion l4 engageable with the thumb of the operator.
- the; technique of utilizing a member of, this nature is that of retracting the plunger I3 to. draw a desired quantity of. fluid into thebarrel l6. Thereafter the needle (not shown) is caused to pierce the desired tissue and by applying pressure to the thumb piece while gripping the barrel It, the contents of the syringe are ejected through the cannula.
- the holder will conveniently include a strip l5 of resilient material which is bent to extend throughoutan arc of slightly more than 180.
- the initial diameter of the strip will be less than the diameter of the external face of the barrel Ill. Therefore, it may readily be clipped onto such barrel and will remain in applied position thereon.
- the strip is preferably flat although it may be formed with a rib Hi which will rigidity its body.
- Connecting portions I! extend from points preferably just short of the ends of strip !5 and are bowed or formed so that they may bridge the flange 52. As shown, the inner ends of the portions l! are preferably spaced substantially Adjacent the outer ends of these connecting portions, fingers H! are attached. The latter 3 extend in a plane preferably parallel to that in which the strip l5 extends. The outer ends of the fingers l8 may terminate in outwardly curved contacting portions l9.
- the holder may readily be moved to a position at which it is mounted on the barrel of the syringe.
- the contacting or outer portions I9 of the fingers will be spaced a distance less than the diameter of the plunger I3. Therefore, if a plunger is disposed in position as in Fig. 3, it will be apparent that the outer ends of the fingers will yieldingly engage the outer plunger surface to exert a frictional restraint on the latter against axial movement with respect to the barrel.
- the fingers will bear against the plunger at substantially diametrically opposite points and will eifectively :prevent accidental movement of the plunger with respect to the barrel. However, they will not restrain deliberate movement of these parts with respect to each other.
- a holder to restrain movements of the plunger of a hypodermic syringe with respect to the barrel of such syringe said holder including a mounting member to .be applied to the outer face of the syringe barrel, spaced connecting portions extending upwardly from said member, a
- pair of resilient fingers each presenting an inner end mounted by one of said connecting portions, an outer plunger-contacting end also forming a part of each of said fingers, the inner ends of said fingers and adjacent parts of said connecting portions being spaced a distance greater than the diameter of the syringe plunger to which the holder is to be applied, the bodies of said fingers extending in the same direction around the circumference of the plunger, being opposed to each other and additionally extending at angles with respect to said connection portions such that the plungercontacting ends of said fingers are spaced a distance lesswith the plunger removed irom said barrel-than the diameter of that plunger, whereby solely the outer end of each finger will engage the plunger; the contacting of the plunger by the outer ends of said pair of fingers occurring solel at points spaced substantially around said plunger.
- a holder to restrain movements of the plunger Of a hypodermic syringe with respect to the barrel of such syringe said holder including a resilient mounting member curved to extend in excess of 180 and to be clipped to the outer face of the circular syringe barrel, resilient connecting portions extending upwardly from said memher at .points short of the ends of the latter, said connecting portions being spaced from each other substantially 180, a pair of resilient fingers each presenting an inner end mounted by one of said connecting portions, an outer plunger-contacting end also forming a part of each of said fingers, the inner ends of said fingers and adjacent parts of said connecting portions being spaced a distance greater than the diameter of the syringe plunger to which the holder is to be applied, the bodies of said fingers extending in the same direction around the circumference of the plunger, being opposed to each other and additionally extending at angles with respect to said connecting portions such that the plunger-contacting ends of said fingers are spaced a distance lesswith the plunger removed from said .bar
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
NOV. 22, 1949 ws 2,489,040
HOLDER Filed Feb. 14, 1946 10 l 13 11 M i i J? 17 fim/ Z? [ml MK BY M, y M
ATTORNEYS INVENTOR Patented Nov. 22, 1949 STATES HOLDER Errol R. Lawshe, Rutherford, N. 3., assignor to Becton, Dickinson & 00., Rutherford, N. 5., a. corporation of New Jersey Application February 14, 1946, Serial No. 647,545
2 Claims. IV
This; invention relates to a structurally and functionally improved holder and in its more specific: aspects aims to provide a unit of this ime fpr'application. to a hypodermic syringe to maintain the; parts of the latter against accidentalv displacement.
It is a well appreciated fact that considerable difficulty has been, exp erienced'inconnection with glass hypodermic syringes; involving a barrel and plunger, due =to t hefact that great care has had tube-exercised: to prevent the plunger from accidentally moving with respect to the barrel.
Such;displacements-have occurred either incidentto the action of gravity, a vibration due to the normal handling of the syringe, jarring the latter, etc.
With these difficulties in mind, attachments have been provided for syringes which would serve to restrain movements. of the plunger with respect to the barrel except when a deliberate manipulation of these parts occur-red. These-attachments have been unsatisfactory for a number of reasons, among which are included the fragile nature of the attachment, the fact that the latter might exert too great or too little a restraining influence, the cost of dies required for production of the device and for various other reasons.
By means of the present invention, a holding unit is provided which may be manufactured at low cost and in large quantities; the required die being relatively simple and inexpensive.
Moreover, an improved holder is provided which will not be fragile and which may readily be applied to and removed from association with a hypodermic syringe. Additionally when in applied position, the holder will efiectively and properly increase the resistance to movement of the plunger with respect to the barrel to just the extent desired. Accordingly, difficulties will not be experienced due to accidental movements of these parts nor will sufficient resistance be encountered to render the use of the holder objectionable.
With these and other objects in mind, reference is had to the attached sheet of drawings illustrating one practical embodiment of the invention, and in which:
Fig. 1 is a side elevation of a holder applied to a syringe assembly;
Fig. 2 is a plan viewof such holder;
Fig. 3 is a transverse sectional view in enlarged scale taken along the lines 3-3 and in the direction of the arrows as indicated inFig, 1;
Fig. 4 is a, View similar toFig. 3 but with the plunger of the syringe removed; and
Fig. 5 is a perspective view of the holder deteched from the, syringe assembly. Iii-these viewsit will be-seen that the numeral lfiindicates the barrel ofthe syringe formed of glass orv similar-.material, and which barrel has adjacent itsouter end a: needle-mounting boss or extension H; Adjacent its inner end, it may he formeddvith a flange, the area of which may beadequate to provide ears: for engagement by the fingers of an operator. The barrelv lil receives a. plunger, 53, which may have a portion l4 engageable with the thumb of the operator. As is well known, the; technique of utilizing a member of, this nature, is that of retracting the plunger I3 to. draw a desired quantity of. fluid into thebarrel l6. Thereafter the needle (not shown) is caused to pierce the desired tissue and by applying pressure to the thumb piece while gripping the barrel It, the contents of the syringe are ejected through the cannula.
According to a preferred embodiment of the invention, the holder will conveniently include a strip l5 of resilient material which is bent to extend throughoutan arc of slightly more than 180. The initial diameter of the strip will be less than the diameter of the external face of the barrel Ill. Therefore, it may readily be clipped onto such barrel and will remain in applied position thereon. As illustrated, the strip is preferably flat although it may be formed with a rib Hi which will rigidity its body. Thus a deliberate force will be necessary in either clipping the mounting member onto the barrel by forcing it laterally toward the axis of the syringe, with the ends of the strip l5 camming against the surface of the barrel, or in order to reverse the operation to dismount the holder.
Connecting portions I! extend from points preferably just short of the ends of strip !5 and are bowed or formed so that they may bridge the flange 52. As shown, the inner ends of the portions l! are preferably spaced substantially Adjacent the outer ends of these connecting portions, fingers H! are attached. The latter 3 extend in a plane preferably parallel to that in which the strip l5 extends. The outer ends of the fingers l8 may terminate in outwardly curved contacting portions l9.
Thus, as is shown in Fig. 4, the holder may readily be moved to a position at which it is mounted on the barrel of the syringe. With the plunger not in position, the contacting or outer portions I9 of the fingers will be spaced a distance less than the diameter of the plunger I3. Therefore, if a plunger is disposed in position as in Fig. 3, it will be apparent that the outer ends of the fingers will yieldingly engage the outer plunger surface to exert a frictional restraint on the latter against axial movement with respect to the barrel. The fingers will bear against the plunger at substantially diametrically opposite points and will eifectively :prevent accidental movement of the plunger with respect to the barrel. However, they will not restrain deliberate movement of these parts with respect to each other.
Thus among others, the several objects of the invention as specifically afore-noted are achieved. Obviously numerous changes in construction and rearrangement of the parts might be resorted to without departing from the spirit of the invention as defined by the claims.
I claim:
1. A holder to restrain movements of the plunger of a hypodermic syringe with respect to the barrel of such syringe, said holder including a mounting member to .be applied to the outer face of the syringe barrel, spaced connecting portions extending upwardly from said member, a
pair of resilient fingers each presenting an inner end mounted by one of said connecting portions, an outer plunger-contacting end also forming a part of each of said fingers, the inner ends of said fingers and adjacent parts of said connecting portions being spaced a distance greater than the diameter of the syringe plunger to which the holder is to be applied, the bodies of said fingers extending in the same direction around the circumference of the plunger, being opposed to each other and additionally extending at angles with respect to said connection portions such that the plungercontacting ends of said fingers are spaced a distance lesswith the plunger removed irom said barrel-than the diameter of that plunger, whereby solely the outer end of each finger will engage the plunger; the contacting of the plunger by the outer ends of said pair of fingers occurring solel at points spaced substantially around said plunger.
2. A holder to restrain movements of the plunger Of a hypodermic syringe with respect to the barrel of such syringe, said holder including a resilient mounting member curved to extend in excess of 180 and to be clipped to the outer face of the circular syringe barrel, resilient connecting portions extending upwardly from said memher at .points short of the ends of the latter, said connecting portions being spaced from each other substantially 180, a pair of resilient fingers each presenting an inner end mounted by one of said connecting portions, an outer plunger-contacting end also forming a part of each of said fingers, the inner ends of said fingers and adjacent parts of said connecting portions being spaced a distance greater than the diameter of the syringe plunger to which the holder is to be applied, the bodies of said fingers extending in the same direction around the circumference of the plunger, being opposed to each other and additionally extending at angles with respect to said connecting portions such that the plunger-contacting ends of said fingers are spaced a distance lesswith the plunger removed from said .barrel-than the diameter of that plunger, whereby solely the outer end of each finger will engage the plunger; the contacting of the plunger by the outer ends of said pair of fingers occurring solely at points spaced substantially 180 around said plunger.
ERROL R. LAWSHE.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,496,654 Crowther June 3, 1924 1,678,991 Marschalek July 31, 1928
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US647545A US2489040A (en) | 1946-02-14 | 1946-02-14 | Holder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US647545A US2489040A (en) | 1946-02-14 | 1946-02-14 | Holder |
Publications (1)
Publication Number | Publication Date |
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US2489040A true US2489040A (en) | 1949-11-22 |
Family
ID=24597385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US647545A Expired - Lifetime US2489040A (en) | 1946-02-14 | 1946-02-14 | Holder |
Country Status (1)
Country | Link |
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US (1) | US2489040A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1073691B (en) * | 1955-04-04 | 1960-01-21 | Hertig Lau sänne Werner (Schweiz) | Koi syringes for medical purposes |
US3211151A (en) * | 1961-11-15 | 1965-10-12 | Foderick | Catheters |
US3477431A (en) * | 1967-02-03 | 1969-11-11 | Abbott Lab | Combined mixing syringe and container |
US5217442A (en) * | 1990-09-28 | 1993-06-08 | Minimed Technologies | Aspiration and refill kit for a medication infusion pump |
US20060200085A1 (en) * | 2005-02-15 | 2006-09-07 | Philip Watts | Tissue transfer cannula and connectors |
WO2007005902A2 (en) * | 2005-07-01 | 2007-01-11 | Bio-Matrix Scientific Group Inc. | Syringe clip |
US20070093755A1 (en) * | 2005-09-23 | 2007-04-26 | Koos David R | Cannula handle and storage system |
US20090227957A1 (en) * | 2005-08-11 | 2009-09-10 | Arzneimittel Gmbh Apotheker Vetter & Co. Ravensbur | Syringe |
CN109172885A (en) * | 2018-09-29 | 2019-01-11 | 温学辉 | A kind of simple adjustable negative pressure therapeutic device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1496654A (en) * | 1920-01-26 | 1924-06-03 | A P De Sanno & Son Inc | Friction device for plungers of syringes and similar articles |
US1678991A (en) * | 1927-11-02 | 1928-07-31 | Becton Dickinson Co | Plunger clip for syringes |
-
1946
- 1946-02-14 US US647545A patent/US2489040A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1496654A (en) * | 1920-01-26 | 1924-06-03 | A P De Sanno & Son Inc | Friction device for plungers of syringes and similar articles |
US1678991A (en) * | 1927-11-02 | 1928-07-31 | Becton Dickinson Co | Plunger clip for syringes |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1073691B (en) * | 1955-04-04 | 1960-01-21 | Hertig Lau sänne Werner (Schweiz) | Koi syringes for medical purposes |
US3211151A (en) * | 1961-11-15 | 1965-10-12 | Foderick | Catheters |
US3477431A (en) * | 1967-02-03 | 1969-11-11 | Abbott Lab | Combined mixing syringe and container |
US5217442A (en) * | 1990-09-28 | 1993-06-08 | Minimed Technologies | Aspiration and refill kit for a medication infusion pump |
US20060200085A1 (en) * | 2005-02-15 | 2006-09-07 | Philip Watts | Tissue transfer cannula and connectors |
WO2007005902A2 (en) * | 2005-07-01 | 2007-01-11 | Bio-Matrix Scientific Group Inc. | Syringe clip |
US20070049872A1 (en) * | 2005-07-01 | 2007-03-01 | Philip Watts | Syringe clip |
WO2007005902A3 (en) * | 2005-07-01 | 2007-03-29 | Bio Matrix Scient Group Inc | Syringe clip |
US20090227957A1 (en) * | 2005-08-11 | 2009-09-10 | Arzneimittel Gmbh Apotheker Vetter & Co. Ravensbur | Syringe |
US8137324B2 (en) * | 2005-08-11 | 2012-03-20 | Arzneimittel Gmbh Apotheker Vetter & Co. Ravensburg | Syringe with internal safety device |
US20070093755A1 (en) * | 2005-09-23 | 2007-04-26 | Koos David R | Cannula handle and storage system |
CN109172885A (en) * | 2018-09-29 | 2019-01-11 | 温学辉 | A kind of simple adjustable negative pressure therapeutic device |
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