WO2019059818A1 - Syringe having a plunger rod for single-handed injection and aspiration - Google Patents

Syringe having a plunger rod for single-handed injection and aspiration Download PDF

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Publication number
WO2019059818A1
WO2019059818A1 PCT/SA2018/050017 SA2018050017W WO2019059818A1 WO 2019059818 A1 WO2019059818 A1 WO 2019059818A1 SA 2018050017 W SA2018050017 W SA 2018050017W WO 2019059818 A1 WO2019059818 A1 WO 2019059818A1
Authority
WO
WIPO (PCT)
Prior art keywords
plunger
cylinder
syringe
arms
samples
Prior art date
Application number
PCT/SA2018/050017
Other languages
French (fr)
Inventor
Abdulaziz ALSUHAIBANI
Original Assignee
Alsuhaibani Abdulaziz
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
Application filed by Alsuhaibani Abdulaziz filed Critical Alsuhaibani Abdulaziz
Publication of WO2019059818A1 publication Critical patent/WO2019059818A1/en

Links

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
    • A61M5/3148—Means for causing or aiding aspiration or plunger retraction
    • 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
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • 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
    • A61M5/3129—Syringe barrels
    • A61M5/3135—Syringe barrels characterised by constructional features of the proximal end
    • 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
    • A61M5/3129—Syringe barrels
    • A61M5/3137—Specially designed finger grip means, e.g. for easy manipulation of the syringe rod

Definitions

  • This syringe will provide these functions by simple design and easy to use. The design has been modified to ease the withdrawing and injecting mechanisms; by letting the user using the similar fingers in both.
  • This syringe is composed of cylinder that has two ends (one end to connect the needle and other one which is semi-closed), and plunger which has four arms are extending from plunger's tip toward the cylinder; two of them are moving parallel to the cylinder's wall internally and end into plunger seal, and the other two are moving parallel to the cylinder's wall externally.
  • the external arms are designed to have flanges to place the fingers and pull these arms while withdrawing samples; that will allow sample to get sucked inside the cylinder through the cylinder's tip, and injecting the sample through the same opening, by the same fingers of same hand, without using the other hand to handle the syringe, as what it is the practice nowadays.
  • the main goal of this invention is to provide a simple design of a syringe that can ease the injecting and withdrawing of samples and fluids by one-hand finger gripped technique and avoid the risks and complications of using both hands, i.e. bleeding, multiple punctures of vessels; and this is critical in very sick patients, especially in withdrawing blood from deep veins, and accurately withdrawing tiny amount of samples in the labs.
  • U.S. Pat. No. 5833668 has used, also, one-hand technique to inject and withdraw the samples, but it differs in the presence of a ring at the plunger tip where the thumb finger to be placed inside the ring; pushing a plunger to inject the sample and withdraw the sample by pulling it, in addition to create a curved flanges to position the index and middle finger on them while pushing and pulling the plunger, and by this way, when a powerful withdrawing is applied, it will be painful to the fingers and difficult in stabilizing the needle or syringe while withdrawing; which might displace the syringe, and then tend into bleeding or other unwanted complications.
  • D U.S. Pat. No.
  • 20040073172 has almost the closest idea to what this invention about, but it has differed from it by creating longitudinal grooves in cylinder to make the plunger's body passing through them, and by this design, the syringe size will be reduced into half of its real size, in addition to limitation of plunger's movement.
  • Fig.1 illustrates 3 dimensions view of the syringe
  • FIG.2 Illustrates a longitudinal view of the cylinder
  • Fig.3 Illustrates a longitudinal view of the plunger
  • the syringe has two parts; the first is cylinder which has a body [9]; that has two ends, one of these ends is the cylinder tip [10], where the needle or cannula can be connected to it, and the other end contains cylinder flanges [8], and a semi-sealed end [1 1] in the same level of flanges which has orifices [12] that allow the plunger's internal arms [6] to pass through them in and out of cylinder during the mechanisms of injecting and withdrawing.
  • the other part of the syringe is the plunger, which is composed of plunger's tip [1 ] that has flanges [2] to provide more support during injecting mechanism.
  • the plunger's tip is connected into four arms, two internal arms [6] which are designed to move parallel to the internal surface of cylinder's body [9] and they end up with a plunger seal [7] which is moving by these arms inside the cylinder, and the other two arms called pulling (external) plunger's arms [4] which are designed to move parallel to the external surface of cylinder's body [9], and end up with flanges [5], these external arms are stabilized by a ring [3] that surrounding the cylinder's body [9]. [35] In (Fig. 2), has shown a longitudinal view of cylinder only. The components of the drawing carry similar number of figure 1 .
  • FIG. 3 has described how is the plunger designed, it shows a longitudinal view of plunger only.
  • the components of the drawing carry similar number of figure 1 .
  • the present invention after it has been described, has variable sizes; as small as 1 ml up to 70 ml, or even more, and it can be manufactured either from metals, glass or plastic. It has many applications; as in medical field, biological labs., chemical labs, Agricultural labs, and even in industrial fields, as it is easy to use in withdrawing and injecting samples in exact amount, and not complicated in its design.
  • the thumb finger has to be placed on the semi-sealed end [1 1] of the cylinder while the index and middle fingers of the same hand will be placed over the pulling (external) plunger arms' flanges [5], and with applying pressure by these fingers, the plunger will move out of the cylinder and then make the sample sucked into the cylinder through its tip [10].
  • the thumb finger has to be placed over the plunger's tip [1] and the index and middle fingers of the same hand will be placed over the flanges of the cylinder [8], and by approximating the used fingers to each other, the plunger will go inside the cylinder and then injecting the sample through the cylinder tip [10].

Landscapes

  • Health & Medical Sciences (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

This is a syringe that has been modified to be different from the syringes which are sued nowadays. This syringe depends on one-hand technique in withdrawing and injecting samples in behalf of using two hands, as what is the practice now. It is designed and composed of cylinder which has two ends; one end to suck the samples through the cylinder tip and the other end which has been modified to place the fingers on it. The other component is the plunger which has been modified also to ease its movement while pulling it out, and in turn sucking the samples, by the same hand that had been used in injecting the samples.

Description

SYRINGE HAVING A PLUNGER ROD FOR SINGLE-HANDED INJECTION AND ASPIRATION
[1] This is a Single plunger withdrawing and injecting syringe. It has been designed to be used by one-hand technique for injecting fluids and samples by pushing the plunger, and withdrawing the samples and fluids by pulling the same plunger using the same fingers, and this will make the other hand free to fix the skin or stabilize the syringe while injecting or withdrawing the samples. This syringe will provide these functions by simple design and easy to use. The design has been modified to ease the withdrawing and injecting mechanisms; by letting the user using the similar fingers in both.
[2] This syringe is composed of cylinder that has two ends (one end to connect the needle and other one which is semi-closed), and plunger which has four arms are extending from plunger's tip toward the cylinder; two of them are moving parallel to the cylinder's wall internally and end into plunger seal, and the other two are moving parallel to the cylinder's wall externally. The external arms are designed to have flanges to place the fingers and pull these arms while withdrawing samples; that will allow sample to get sucked inside the cylinder through the cylinder's tip, and injecting the sample through the same opening, by the same fingers of same hand, without using the other hand to handle the syringe, as what it is the practice nowadays.
[3] The main goal of this invention is to provide a simple design of a syringe that can ease the injecting and withdrawing of samples and fluids by one-hand finger gripped technique and avoid the risks and complications of using both hands, i.e. bleeding, multiple punctures of vessels; and this is critical in very sick patients, especially in withdrawing blood from deep veins, and accurately withdrawing tiny amount of samples in the labs. Background Art
[4] There are various syringes which had been invented depending on one-handed finger gripped for injection and withdrawing functions, they have similar idea, but differ in their techniques and designs. They have been illustrated below:
[5] A) U.S. pat. No. 4813433; this patent has provided the ability of withdrawing the samples by one-hand technique, by dividing the cylinder into two longitudinal halves; the plunger is passing through one of them and the sample that has been withdrawn will be collected in the other half. This patent provides withdrawing the samples by pushing technique, but it has been clear that the injection function will require both hand to do it. Other than that, the syringe size will be doubled.
[6] B) U.S. Pat. No. 20050192543, and U.S. Pat. No. 6231550 have described the mechanism of injecting and withdrawing the samples by using same hand grip by pressing into one of plungers to inject and pressing the other one to withdraw. These patents depend on connecting the distal ends of plungers by a filament or the plungers' arms by pinion gear, and this what will make the plunger moving against each other. In addition to that, there is a ring surrounding the cylinder body to stabilize the outer part of the plunger in its position. These patents might not be a good option in a steady powerful injecting and withdrawing mechanisms, and they need to make the plungers stabilized in equal way when manufactured; which make their mass production not easy. This patent differs from the previous mentioned patent, in which there is only one plunger that is not connected to any filaments or gears, and only it has one cylinder.
[7] C) U.S. Pat. No. 5833668 has used, also, one-hand technique to inject and withdraw the samples, but it differs in the presence of a ring at the plunger tip where the thumb finger to be placed inside the ring; pushing a plunger to inject the sample and withdraw the sample by pulling it, in addition to create a curved flanges to position the index and middle finger on them while pushing and pulling the plunger, and by this way, when a powerful withdrawing is applied, it will be painful to the fingers and difficult in stabilizing the needle or syringe while withdrawing; which might displace the syringe, and then tend into bleeding or other unwanted complications. [8] D) U.S. Pat. No. 20040073172 has almost the closest idea to what this invention about, but it has differed from it by creating longitudinal grooves in cylinder to make the plunger's body passing through them, and by this design, the syringe size will be reduced into half of its real size, in addition to limitation of plunger's movement.
[9] E) U.S. Pat. No. 3990446 which has been designed to pull the plunger using two fingers while the thumb will be positioned at the end of long arm connected to the barrel and the plunger will move through it, and this design will make the syringe as much as double of its regular size, in addition to that, it will be difficult to use larger syringe sizes of that design in small areas.
Brief Description of Drawings
[10] The features, aspects, and advantages of the invention will become apparent from the following description, appended claims and accompanying exemplary embodiments shown in the drawings which are described briefly.
Fig.1 : illustrates 3 dimensions view of the syringe
[1 1 ] [1] Plunger's tip.
[12] [2] Plunger's tip flange.
[13] [3] Pulling plunger arms' ring.
[14] [4] Pulling (external) plunger arms.
[15] [5] Pulling plunger arms flanges.
[16] [6] Plunger internal arms
[17] [7] Plunger seal
[18] [8] Cylinder flanges
[19] [9] Cylinder body
[20] [10] Cylinder tip
[21] [11] Cylinder semi-sealed orifice
[22] [12] semi-sealed orifices Fig.2 Illustrates a longitudinal view of the cylinder
[23] [9] Cylinder body
[24] [10] Cylinder tip
[25] [11] Cylinder semi-sealed end
[26] [12] orifices at semi-sealed end
Fig.3 Illustrates a longitudinal view of the plunger
[27] [1] Plunger's tip.
[28] [2] Plunger's tip flange.
[29] [3] Pulling plunger arms' ring.
[30] [4] Pulling (external) plunger arms.
[31] [5] Pulling plunger arms flanges.
[32] [6] Plunger internal arms
[33] [7] Plunger seal.
Description of Embodiments
[34] In (Fig. 1 ), the syringe has two parts; the first is cylinder which has a body [9]; that has two ends, one of these ends is the cylinder tip [10], where the needle or cannula can be connected to it, and the other end contains cylinder flanges [8], and a semi-sealed end [1 1] in the same level of flanges which has orifices [12] that allow the plunger's internal arms [6] to pass through them in and out of cylinder during the mechanisms of injecting and withdrawing. The other part of the syringe is the plunger, which is composed of plunger's tip [1 ] that has flanges [2] to provide more support during injecting mechanism. The plunger's tip is connected into four arms, two internal arms [6] which are designed to move parallel to the internal surface of cylinder's body [9] and they end up with a plunger seal [7] which is moving by these arms inside the cylinder, and the other two arms called pulling (external) plunger's arms [4] which are designed to move parallel to the external surface of cylinder's body [9], and end up with flanges [5], these external arms are stabilized by a ring [3] that surrounding the cylinder's body [9]. [35] In (Fig. 2), has shown a longitudinal view of cylinder only. The components of the drawing carry similar number of figure 1 .
[36] In (Fig. 3), has described how is the plunger designed, it shows a longitudinal view of plunger only. The components of the drawing carry similar number of figure 1 .
[37] The present invention, after it has been described, has variable sizes; as small as 1 ml up to 70 ml, or even more, and it can be manufactured either from metals, glass or plastic. It has many applications; as in medical field, biological labs., chemical labs, Agricultural labs, and even in industrial fields, as it is easy to use in withdrawing and injecting samples in exact amount, and not complicated in its design.
[38] To use the syringe in withdrawing the samples, the thumb finger has to be placed on the semi-sealed end [1 1] of the cylinder while the index and middle fingers of the same hand will be placed over the pulling (external) plunger arms' flanges [5], and with applying pressure by these fingers, the plunger will move out of the cylinder and then make the sample sucked into the cylinder through its tip [10]. To inject the samples, the thumb finger has to be placed over the plunger's tip [1] and the index and middle fingers of the same hand will be placed over the flanges of the cylinder [8], and by approximating the used fingers to each other, the plunger will go inside the cylinder and then injecting the sample through the cylinder tip [10].

Claims

Claims
[Claim 1] This is a single plunger withdrawing and injecting syringe, which
contains:
1 ) Plunger
2) Cylinder body [1 -9]
3) Pulling plunger arms [1 -4]
4) Plunger's internal arms [1 -6].
[Claim 2] The syringe of Claim 1 ; as the cylinder has a semi-sealed end which is made by similar material that syringe will be made from, and it has two orifices that the plunger's internal arms can pass through them.
[Claim 3] The syringe of Claim 1 ; the plunger has internal arms and pulling
(external) arms; the internal arms are moving over the internal surface of the cylinder body up to it connects to the plunger's seal, and it is extending out of the cylinder bypassing through the orifices of the semi-sealed end of the cylinder to end up to the plunger's tip. The pulling (external) arms, on the other hand are connected also to the plunger's tip and moving over the external surface of the cylinder body up to they end into the plunger's flanges, and they are connected to each other by a ring which is surrounding the external surface of the cylinder.
PCT/SA2018/050017 2017-09-21 2018-04-25 Syringe having a plunger rod for single-handed injection and aspiration WO2019059818A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SA117390001A SA117390001B1 (en) 2017-09-21 2017-09-21 Single Plunger Withdrawing and injecting Syringe
SA117390001 2017-09-21

Publications (1)

Publication Number Publication Date
WO2019059818A1 true WO2019059818A1 (en) 2019-03-28

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WO (1) WO2019059818A1 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990446A (en) 1975-02-18 1976-11-09 Jewel Dean Randolph Taylor Hypodermic syringe for stabilized aspiration by one hand
US4639248A (en) * 1984-12-07 1987-01-27 Schweblin Jean Denis Syringe
US4813433A (en) 1988-04-11 1989-03-21 Downey John M Syringe for withdrawing blood
US5833668A (en) 1996-11-21 1998-11-10 Aguilar; David G. Hypodermic syringe
US6231550B1 (en) 1999-12-02 2001-05-15 Joshua D. Laughlin One-handed single grip position aspiration and injection syringe
US20040073172A1 (en) 2001-01-10 2004-04-15 Pedro Acha Gandarias Syringe and method for the use thereof
US20050192543A1 (en) 2004-02-13 2005-09-01 Sibbitt Wilmer L. Reciprocating syringe
US20110046604A1 (en) * 2009-08-21 2011-02-24 Becton Dickinson France S.A.S. Syringe Assembly with Inverse Delivery
DE202012006191U1 (en) * 2012-06-16 2012-07-11 Harlad Reitz-Lennemann Medical syringe
US20130131606A1 (en) * 2011-11-21 2013-05-23 University Of Louisville Research Foundation, Inc. Ergonomic syringe and adaptor

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990446A (en) 1975-02-18 1976-11-09 Jewel Dean Randolph Taylor Hypodermic syringe for stabilized aspiration by one hand
US4639248A (en) * 1984-12-07 1987-01-27 Schweblin Jean Denis Syringe
US4813433A (en) 1988-04-11 1989-03-21 Downey John M Syringe for withdrawing blood
US5833668A (en) 1996-11-21 1998-11-10 Aguilar; David G. Hypodermic syringe
US6231550B1 (en) 1999-12-02 2001-05-15 Joshua D. Laughlin One-handed single grip position aspiration and injection syringe
US20040073172A1 (en) 2001-01-10 2004-04-15 Pedro Acha Gandarias Syringe and method for the use thereof
US20050192543A1 (en) 2004-02-13 2005-09-01 Sibbitt Wilmer L. Reciprocating syringe
US20110046604A1 (en) * 2009-08-21 2011-02-24 Becton Dickinson France S.A.S. Syringe Assembly with Inverse Delivery
US20130131606A1 (en) * 2011-11-21 2013-05-23 University Of Louisville Research Foundation, Inc. Ergonomic syringe and adaptor
DE202012006191U1 (en) * 2012-06-16 2012-07-11 Harlad Reitz-Lennemann Medical syringe

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