Abstract: A flow delivery system including a syringe that includes an outer plastic shell, a leur and a plunger; and a needle and/or a catheter that embodies a hub and a cannula which delivers a solution of a material. Various structures are included to provide locking engagements, torque sensitive connections, sufficient interfacing between components and visual conformation of connectors. The syringe assembly can also include an approach to a filter. Moreover, an approach to sterilization is provided.

Abstract: A relatively stiff syringe pressure applicator having a pair of ears, the ears are overmolded with a relatively soft elastomer. A port extends through the syringe pressure applicator and is connected to friction fittings on either side of the pressure applicator. The external fitting is suitable for connecting to a source of pressurized air. The other fitting is sized and shaped to receive an elastomeric seal that may be inserted into the open end of a syringe to seal the syringe air tight.

Abstract: The syringe systems disclosed herein provide in part devices for allowing patients with comprised joint strength to more easily administer medicine. Certain exemplary syringe embodiments include a handle forming a handgrip, a syringe barrel that magnifies the dosage marks located on an inner barrel, and a tip cap slidably engageable with the syringe barrel for shielding a needle.

Abstract: Embodiments disclosed herein generally describe a medication delivery system. The medication delivery system includes a barrel, a plunger assembly, a dosage selection device, and a force producing element. The plunger assembly is disposed within the barrel. The force producing element can force the plunger assembly from the barrel. The user can select one or two or more dosages with a dosage selection device. The user selects the dosage; then the medication delivery system delivers the same dosage repeatedly. Further, with the force producing element, the user need only depress the plunger assembly into the barrel and does not need to extract the plunger assembly. This allows the user to use only one hand with the medication delivery system.

Abstract: A substance delivery system may include a substance delivery device, a cap, and a removal device. The system may be designed for ease of use. The substance delivery device may include an elongated member adapted to interface with a body. Substance delivery devices may be designed allowing for a predetermined separation distance between the body of the device and end of an elongated member used to drive substance from the device.

Abstract: A syringe is provided, comprising a syringe body, a plunger rod, which is guided in the syringe body in a longitudinally displaceable manner, and a grip area which includes a finger portion formed on the syringe body and a thumb portion formed at the rear end of the plunger rod, the grip area being at least partially provided with a friction coating which consists of a different material than the grip area.

Abstract: A hand-held aspiration apparatus includes a handle configured for suspending and using the syringe with a single hand. The handle includes pivotally connected first and second members. The members of the handle may be pivotally connected at intermediate positions along the lengths thereof. The first member is associated with, and may be pivotally connected to, a syringe barrel, while the second member is associated with, and may be pivotally connected to, a syringe plunger. The members are configured and associated with one another in such a way that movement of portions thereof toward each other moves the plunger proximally through the barrel, which may create a vacuum in the barrel that may facilitate aspiration, and that movement of portions of the members away from one another moves the plunger distally through the barrel. The aspiration apparatus may be configured for a single-use (i.e., it may be disposable). Applications of use and methods of using a hand-held syringe are also disclosed.

Abstract: The present embodiments relate to devices and methods for injection. More specifically, the devices and methods provide an ergonomic aspect. In some embodiments, the devices and methods are especially useful in the administration of low volumes of dermal fillers to a subject.

Abstract: The present invention provides an adaptor for use with a fluid delivery device. The adaptor provides extended flanges to more easily accommodate a user's fingers and to disperse the counteracting pressure required when the plunger is depressed.

Abstract: A device for injecting fluid from a pre-filled cartridge is provided. The device includes a needle for piercing a patient. After an injection, the needle can be retracted to prevent inadvertent contact with the contaminated needle. A needle retainer releasably retains the needle in the retracted position. The needle can subsequently be re-extended to administer a subsequent injection. After the cartridge is emptied, the cartridge can be removed, if desired, and replaced with another cartridge for additional injections. Alternatively, the needle can be substantially permanently retracted into the device and safely disposed of in a sharps container.

Abstract: The application includes an improved syringe (100) for use with a receptacle of the type having a self-contained movable piercing member. The syringe includes a barrel (114) having a distal end (114d) and a proximal end (114p). At least one finger member (150) is provided proximate to the distal end (114d) of the barrel (114). The finger member (150) is non-slidably attached to the barrel (114) and configured to permit application of a substantial force by one or more fingers of a person's hand such that the syringe (100) is urged in a distal direction.

Abstract: The syringe is formed according to DIN ISO 11040 and has a syringe barrel (1) with a syringe head (1a) formed on one end and a grip plate (4) formed at the other open end. An elastomeric piston stopper (6) is insertable in this open end, which is movable back and forth and which has a cruciform-cross-sectioned piston rod (7) screwed into it. A stop element, which reduces the interior diameter of the syringe barrel, is provided at the open end of the syringe barrel to perform a back-stop function, i.e. to prevent unintended withdrawal of the piston stopper. For this purpose a plastic part (2) connected to the grip plate (4) is provided with snap catches (3), which snap onto the inner side of the syringe barrel (1). These snap-catches (3) prevent the piston rod (7) from being rotated out of the piston stopper and the piston stopper (6) from being withdrawn from the syringe barrel. At the same time the finger support is enlarged.

Abstract: Since this syringe has projections provided on the rear surface of a flange of a syringe barrel, when it is inserted in an insertion groove of a cylinder holder, the tips of projections are compressed and the flange is fixed. Consequently, even when a solution having high viscosity is injected at higher pressure, breakage does not occur easily. Further, pressure-receiving area may also be increased by providing a guide defining mounting direction of a syringe, alternatively, a positioning mechanism may be provided so as to obtain mounting at a correct position, or the surface of a flange may be roughened.

Abstract: An adaptor for retrofit attachment to a syringe has a slide slideably mounted on the barrel of the syringe, a housing for releasably engaging a flange formed on the trailing end of the syringe plunger, an elongate connector for interconnecting the slide and the plunger housing, and a guide that releasably engages a flange formed at the trailing end of the barrel. Movement of the slide effects simultaneous and corresponding movement of the plunger. This allows a syringe operator to perform aspiration and injection in sequence with one-handed operation of the syringe. The slide is adjacent the leading end of the plunger so that the operator can see the leading end of the plunger. The user's fingers support the syringe from below. The flange housing permanently engages the flange in a second embodiment. In a third embodiment, the elongate connector and plunger are formed integrally at their respective trailing ends.

Abstract: An injection device includes a syringe body tubular element (9) provided with finger-pressing members (23) for holding the injection device to inject a dose of liquid, in particular medicinal liquid. The finger-pressing members consist of a flange (23), provided with an upper surface and a lower surface, including two portions with symmetrical outline (50, 51), called gripping portions, having lower support surfaces for the user's fingers, and between the support surfaces, two portions with diametrically opposed symmetrical outlines (52), called indexing portions, including in the extension of the lower surface of the flange, a lower surfaces having a convex profile formed by two slopes symmetrical relative to a longitudinal axis.

Abstract: A device for injecting fluid from a pre-filled cartridge is provided. The device includes a needle for piercing a patient. After an injection, the needle can be retracted to prevent inadvertent contact with the contaminated needle. A needle retainer releasably retains the needle in the retracted position. The needle can subsequently be re-extended to administer a subsequent injection. After the cartridge is emptied, the cartridge can be removed, if desired, and replaced with another cartridge for additional injections. Alternatively, the needle can be retracted into the device and safely disposed of in a sharps container.

Abstract: A hand-operated syringe for injecting a liquid under high pressure. The syringe has an elongated barrel with proximal and distal ends, the barrel having opposing finger grips at its proximal end with each finger grip having a proximal inner portion defining a most proximal pressure point closely adjacent the barrel, the pressure points defining a plane substantially perpendicular to the barrel's axis. A plunger is received in the barrel and has a proximal end that includes a pressure surface adapted to receive manual pressure. The pressure surface of the plunger and the finger pressure points are arranged so that when the plunger is in its fully inserted position, its pressure surface is spaced distally of the plane defined by the finger pressure points.

Abstract: A syringe for collecting blood includes a cylinder for sucking blood, two guide slits formed on a rear portion of the cylinder in such a way as to be symmetrical with respect to a midpoint of the guide slits, and a rod-shaped handle provided at a rear end of a piston rod in the cylinder so that the handle is transversely fitted into the guide slits. When a user puts his/her thumb on a rear end of the cylinder and rearwardly draws the handle along the guide slits using his/her index and middle fingers, blood is sucked into the cylinder by a rearward movement of the piston in the cylinder.

Abstract: A device for injecting fluid from a pre-filled cartridge is provided. The device includes a needle for piercing a patient. After an injection, the needle can be retracted to prevent inadvertent contact with the contaminated needle. A needle retainer releasably retains the needle in the retracted position. The needle can subsequently be re-extended to administer a subsequent injection. After the cartridge is emptied, the cartridge can be removed, if desired, and replaced with another cartridge for additional injections. Alternatively, the needle can be substantially permanently retracted into the device and safely disposed of in a sharps container.

Abstract: Disclosed herein is a syringe for collecting blood. The syringe is designed to suck blood into a cylinder through a needle which is inserted into a blood vessel, by drawing a piston using a piston rod. In this case, two guide slits are formed on a rear portion of the cylinder in such a way as to be symmetrical with respect to a midpoint therebetween. A rod-shaped handle is provided at a rear end of the piston rod so that the handle is transversely fitted into the guide slits. Thereby, when a user puts his/her thumb on a rear end of the cylinder and rearwardly draws the handle along the guide slits using his/her index and middle fingers, blood is sucked into the cylinder by a rearward movement of the piston in the cylinder.

Abstract: The syringes of the invention are configured with ergonomic features that include polygonal shaped flanges and textured barrels. The polygonal shaped flanges, which preferably have between five and ten sides, help reduce the ability of the syringes to undesirably roll when they are put down and reduce the material required to manufacture the flanges, yet are more comfortable than square and rectangular flanges. The textured barrels enable a user to grab and hold onto the barrels during delivery with syringes so as to increase the leverage and control over the syringe.

Abstract: An injection device includes a syringe body tubular element (9) provided with finger-pressing members (23) for holding the injection device to inject a dose of liquid, in particular medicinal liquid. The finger-pressing members consist of a flange (23), provided with an upper surface and a lower surface, including two portions with symmetrical outline (50, 51), called gripping portions, having lower support surfaces for the user's fingers, and between the support surfaces, two portions with diametrically opposed symmetrical outlines (52), called indexing portions, including in the extension of the lower surface of the flange, a lower surfaces having a convex profile formed by two slopes symmetrical relative to a longitudinal axis.

Abstract: A parenteral apparatus (10, 50, 60, 70, 90, 110, 120) comprises a chamber (26) for parenteral fluid within a housing (12). The apparatus also includes an axially slidable seal (24) operatively associated with a needle (28) and a catheter (32) enclosing the needle (28) in part. In operation, the needle (28) makes an incision in tissue by means of a sharp point (33) and it is then withdrawn into the housing (12) whilst the catheter remains in contact with the tissue. The parenteral fluid is expelled by movement of the seal (24) from the chamber (26) through the needle (28) initially and subsequently through the needle (28) and the catheter (32) as the needle (28) is withdrawn.

Abstract: The ergonomically advantaged syringe is used by an operator to inject fluid into a patient during a medical procedure, which can include angiographic procedures where catheters are used. Although said ergonomic syringe may be connected to and used with a catheter of any size, it is particularly suited for use by an operator to inject radiopaque dye through catheters having small diameters. The large handgrip and locations of the fingergrips, together with other features on these elements of the ergonomic syringe, increase comfort and reduce the fatigue, strain, and risk of disability which may be associated with achieving the force required for each injection to achieve high pressures necessary for proper dye density in the blood flow in the target blood vessels, where such force is greater in smaller catheters than in larger catheters.

Abstract: A system and a method for modification of an manually operated injection device. The injection device comprises a housing (1-3) designed or suitable for manual gripping, a container for a preparation attached to (6) or enclosed in the housing, an outlet (4) for the preparation exposed with respect to the housing, optionally a cap or guard (8) arranged for removable attachment over the outlet and a mechanism arranged for moving the preparation at least from the container through the outlet. The system comprises a set of at least two elements (11,11′) having different properties in at least one respect. The elements (11,11′) are designed for mechanical attachment to one and the same area part (3) of the housing, one at the time.

Abstract: A one-handed hypodermic syringe is a renovated structure that allows users to push and pull the syringe by one hand. The medical personnel may place their thumbs inside the ring disposed in the distal end of the plunger and may press the concave objects disposed in the distal end of the barrel by their index fingers and middle fingers. Thus, the syringe may be held steadily, and the pull-push action of the injection manipulated with one band. The convenience for the medical personnel's use of hypodermic syringe is thereby enhanced.

Abstract: The syringe, especially a pre-filled one-time-use syringe, has a syringe body, which is provided with a storage chamber for a liquid to be injected, and a piston with a piston rod so that the piston is axially slidable in the storage chamber. The syringe body has a finger rest and a stop member for limiting the axial motion of the piston at one end and the finger rest is in one-piece with the stop member, which includes at least one projecting element extending into the syringe body. The syringe has a syringe body with a radially outwardly extending flange section, which is formed for a forming-fitting and/or force-locking engagement with at least one catch region provided in the finger rest in order to securely hold the finger rest on the syringe body.

Abstract: An orientationally adjustable marking syringe provides automatic loading of medicine from a medicine source to the syringe. Actuation of the handles of the syringe simultaneously discharges or injects the contents of the syringe and a marking substance such as ink contained in an ink dispenser integrally attached to the marking syringe by a pivoting ink carriage. The pivoting ink carriage can be pivoted about the syringe to better accommodate the ergonomic desires of the user and the objectives of the injection.

Abstract: A disposable safety syringe has a barrel, a connector assembled at a front end of the barrel, a needle assembly assembled onto the connector, and a plunger extendable into the barrel. The plunger has a connecting head such that the connecting head is able to be securely connected with the connector after an injection via the syringe. Therefore, the needle assembly is able to be pulled by the plunger to fully retract into the barrel and the syringe is then safe to discard without the risk of scratching someone. Moreover, the syringe is provided with a guiding piece to guide the plunger to connect with the connector such that the operation of the syringe is convenient.

Abstract: The ergonomic syringe is used by an operator to inject fluid under pressure into a patient during a medical procedure, which can include angiographic procedures where catheters are used. Although said ergonomic syringe may be connected to and used with a catheter of any size, it is particularly suited for use by an operator to inject radiopaque dye through catheters having small diameters. The large handgrip and locations of the fingergrips, together with other features on these elements of the ergonomic syringe, increase comfort and reduce the fatigue, strain, and risk of disability which may be associated with achieving the force required for each injection to achieve high pressures necessary for proper dye density in the blood flow in the target blood vessels, where such force is greater in smaller catheters than in larger catheters.

Abstract: A circular stapler for side to end, side to side or end to side anastomosis includes an actuating head portion attached to an elongated tubular body with a handle on the opposed end of the body from the head. The head includes an anvil and associated stapling mechanism, wherein the anvil and the associated stapling mechanism are positioned perpendicular to a longitudinal axis of the head. The anvil is releasably attached to the head and may be attached to the head through an anvil applicator. The anvil may include an extendable stem.

Abstract: An orientationally adjustable marking syringe provides automatic loading of medicine from a medicine source to the syringe. Actuation of the handles of the syringe simultaneously discharges or injects the contents of the syringe and a marking substance such as ink contained in an ink dispenser integrally attached to the marking syringe by a pivoting ink carriage. The pivoting ink carriage can be pivoted about the syringe to better accommodate the ergonomic desires of the user and the objectives of the injection.

Abstract: A front-loading syringe which comprises a movable plunger for injecting liquid contrast media, is rotatably mountable on a front wall of an injector housing with an interference fit and in sealed relationship with respect thereto, with or without a pressure jacket, by a first-quick release mechanism. At the same time, the plunger is connected to an injector drive mechanism by a second readily releasable mechanism. During the mounting operation, a sensor reads injection information from an indicator device on the syringe and feeds it to an injector control. An audible-and-tactile indicating mechanism also is activated when the syringe is essentially in the desired mounted position. The syringe may include reinforcing ribs, which also function as volumetric gradations, and liquid media presence-or-absence indicating dots, which appear circular against a liquid media background and oval-shaped against an air background.

Abstract: A dental syringe system having a syringe body containing a needle assembly wherein the syringe body serves as a protective shield after medication is injected. A reusable plunger assembly pushes a slidable seal of a carpule and the needle out for medication delivery and then pulls the needle back within the syringe body after the medication is delivered. The needle assembly, syringe body, carpule carrier and carpule are disposable and the plunger is reusable.

Abstract: A medication delivery apparatus including a housing, a container of medication mounted to the housing, an outlet such as an injection needle, and a drive assembly adapted to force medication from the container and through the outlet upon movement of an actuator. The housing periphery includes a projecting abutment for digit engagement which is ergonomically designed for abutting contact by a first digit of a hand of a user when the housing is grasped within the user's hand such that a second digit of the hand of the user may operate the actuator. When the actuator is moved axially, this abutting contact of the first digit with the abutment permits application of an axial force by the first digit on the abutment in a direction generally opposite to an axial force applied to move the actuator.

Abstract: The invention concerns a disposable injection syringe, in particular in the field of dentistry, comprising: a syringe body provided with a needle at one first end thereof, the needle comprising an external part extending outside the body and an internal part extending inside the body, the needle forming an end external to the body and an end internal to the body; means for grasping the syringe body, at a second end thereof opposite the first end; a mobile injection rod; a cartridge containing a product to be injected, arranged inside the body between the needle internal end and the body second end in an inoperative position, the cartridge capable of being moved from the inoperative position towards the body first end under the injecting rod pressure; elastic means for automatically returning the cartridge towards the inoperative position when the pressure on the injecting rod is released, to cause a depression in the cartridge.

Abstract: One embodiment of the present invention is a hand operated syringe for injecting a liquid which includes an elongated barrel having proximal and distal ends and an exit orifice at its distal end. A pair of opposing finger grips are present at the proximal end of the barrel, each having a proximal inner portion defining a most proximal pressure point closely adjacent the barrel to which finger pressure is applied during operation of the syringe. These points define a plane substantially perpendicular to the barrel's axis.

Abstract: A syringe has a slide member slideably mounted on the barrel of the syringe, and the slide member is interconnected to a plunger that is slideably mounted in the barrel so that movement of the slide member effects simultaneous and corresponding movement of the plunger. This allows a syringe operator to perform aspiration and injection in sequence with one-handed operation of the syringe. The slide member is mounted near the leading end of the barrel in trailing relation to the leading end of the plunger so that the operator can see the leading end of the plunger and control its instantaneous position by sliding the slide member with a thumb or finger. The hand position of the syringe operator does not change, assuring that precise needle positioning can be made and maintained even during procedures such as sclerotherapy where needle positioning is critical.

Abstract: Syringes for medical purposes have syringe bodies which typically have a syringe body (2) on which a syringe head (3) is formed at the outlet end. A finger support (1) is at the other end. This finger support has an enlarged support surface in two mirror-symmetrical opposite-lying regions. To increase the support surface further, the finger support (1) is so configured that the two regions (1a, 1b) have a parabola-shaped configuration whose respective apexes are directed away from the syringe body (2). The two regions go over one into the other in the region (1c, 1d) of the mirror axis in an arcuate shape. In this way, the ergonomic manipulation of the syringes is improved and a high packing density of the syringes when magazining is made possible.

Abstract: A syringe assembly has a tubular syringe body centered on and extending along an axis and formed at a rear end with a radially outwardly projecting rim. A finger brace of limitedly elastically deformable material is formed with an end plate bearing axially forward on the rear end and formed with a central hole. A tube projects axially forward from the hole of the plate into the body at the rear syringe end, and a collar extends axially forward form the plate outside the tube and is formed with a plurality of angularly spaced and radially inwardly projecting teeth engaged under the rim. The plate is also formed adjacent each of the teeth with an axially throughgoing and angularly elongated slot defining a radially elastically deflectable side portion carrying the respective tooth.

Abstract: Since this syringe has projections provided on the rear surface of a flange of a syringe barrel, when it is inserted in an insertion groove of a cylinder holder, the tips of projections are compressed and the flange is fixed. Consequently, even when a solution having high viscosity is injected at higher pressure, breakage does not occur easily. Further, pressure-receiving area may also be increased by providing a guide defining mounting direction of a syringe, alternatively, a positioning mechanism may be provided so as to obtain mounting at a correct position, or the surface of a flange may be roughened.

Abstract: A process for filling and sealing a fluid-containing plastic disposable syringe that is to be sterilized, wherein the disposable syringe includes a barrel having a front end, a nozzle part having a sealing element, a plunger plug, and a plunger stop element that is placed in the area of a cylinder gripping plate, the process includes inserting and pushing the plunger plug into the front end of the barrel, using pressure and forcing a fluid medium into the barrel via the nozzle part, whereby the fluid medium pushes the plunger plug in the direction of the plunger stop element, and sealing the sealing element of the nozzle part by plastic deformation after the barrel and the nozzle part are filled.

Abstract: A hypodermic syringe for medical, dental or veterinary use of a conventional nature or employing prefilled cartridge ampules of injectable fluid. The syringe is arranged to allow the operator to automatically sense the amount of pressure being manually exerted by thumb pressure to express the fluid from the ampule or a fluid chamber into the patient. A slender elongated plunger mounted within the main body of the syringe is slidably moveable by thumb pressure against a thumb ring disposed at a distal end of the plunger. A spring-biased pressure indicator member is slidably moveable rearwardly for limited longitudinal movement with respect to the thumb ring and is deflected into the thumb of the operator a distance proportional to the fluid pressure at the syringe needle tip. The operator can thus sense indicia of fluid pressure produced while pressing the thumb ring to make an injection.

Abstract: The present invention provides in part an improved drug injection system, comprising novel self-aspirating syringes, drug cartridge and novel needle assemblies. It is primarily intended for administering of local anesthetic by dentists, but it can be used equally well in medical and veterinary applications. In one aspect, the novel syringe is made lightweight, comfortable to hold and corrosion resistant. In another aspect, some novel changes in the design of the syringe reduce the possibility of transmitting an infection from the blood of one patient into the blood of another. Additionally, innovation in the design of needle assembly makes the syringe safe to use even without prior sterilization and at the same time eliminating the possibility of transmitting infection as the result of human error.

Abstract: Finger grip collar positioned on the proximal end of a syringe or cartridge barrel by a snap-on motion to facilitate manipulation of the syringe or cartridge during the injection or withdrawal of a medical fluid into or from a site. The finger grip collar requires no special orientation or positioning on the barrel of the syringe or cartridge for the practitioner to manipulate the assemblage.

Abstract: An adaptor system includes a plastic syringe which is pre-filled with a liquid medicament, and a plastic flange adaptor which can be attached to the syringe. The medicament-prefilled syringe is provided with a cylindrical body having a small diameter cylindrical body to which a liquid medicament information label is adhered and a large diameter cylindrical body, and an end flange. The flange adaptor is provided with a cylindrical base portion having an insertion hole whose diameter is such that the inner wall of the insertion hole does not contact the small diameter cylindrical body of the syringe and is in contact with the large diameter cylindrical body when the flange adaptor is fitted to the syringe, and a large diameter flange portion which surrounds the end flange of the syringe. The invention is also directed to a medicament-prefilled plastic syringe itself.

Abstract: Disclosed is an ergonomically improved hypodermic syringe which facilitates one-handed use by allowing the same hand that holds the syringe to operate the plunger conveniently to accomplish both the distal (injecting) stroke and the proximal (aspirating) stroke. The syringe includes a pair of finger-stop structures on diametrically opposite sides of the barrel which block slippage in both proximal and distal directions and which do not occupy the barrel's entire circumference and do not interfere with the legibility of a calibration scale that passes through the region of the barrel with which said structures are associated. A loop atop the syringe's plunger member is also provided, which is adjustable to vary the size of the aperture thereof for a snug fit with fingers and thumbs of varying sizes. In combination, the adjustable loop and finger-stops make the syringe plunger easily operable in both directions with one hand.

Abstract: A gripping strip for prefilled disposable syringes having a syringe cylinder. The gripping strip has a gripping strip element formed as a separate synthetic plastic part fixedly mountable on the syringe cylinder, a plate-shaped abutment provided on the gripping strip element and having a hollow cylindrical receptacle with an outer diameter which is adapted to be smaller than an inner diameter of the syringe cylinder, arresting elements provided in a region of an outer surface of the gripping strip element for mounting with the syringe cylinder in a complimentary inner undercut of the syringe cylinder, a safety ring insertable in an interior of the receptacle for maintaining a working connection, the safety ring being connected with the interior of the receptacle of one piece through locations of desired breakage in an unsecured position, so that during placing the syringe cylinder over the receptacle it is displaceable into a securing position.

Abstract: A bulb syringe providing for uniform, hence repeatable, deflation/inflation of the bulb and a tactile-discernible limit of deflation of the bulb and resultant control over the consistency of degree of suction produced with the deflated bulb is allowed to inflate in response to its resiliency and memory. The bulb syringe includes a bottom portion having a spout and a top portion whose resiliency is enhanced by a plurality of ribs. The top and bottom portions are provided with equatorial shoulders which are joined and which establish a tactile-discernible limit of deflation of the top portion. In one embodiment, the bottom portion is provided with a pair of lugs on the outer surface therefor for receipt of the palmar surfaces of two adjacent fingers of a user. Preferably, the syringe is transparent or at least sufficiently translucent as permits the visual inspection of any fluid contained therein.

Abstract: The present invention relates to an inventive non-elastomeric thermoplastic cap assembly that may be secured on an end of a generally cylindrical body at room temperatures. The cap is a deformable tubular sheath having an interior surface, an exterior surface, a first open end for receiving the end of the cylindrical body, and a second end which is at least partially closed to inhibit passage of the cylindrical body through the second end. The sheath has a gripping region adjacent the first open end to engage the exterior surface of the cylindrical body. The gripping region may include at least one ridge on the interior surface of the tubular sheath. The sheath also has a transition region adjacent the second end of the sheath, which helps the sheath provide a controlled and predictable amount of retention force over a wide range of component tolerances.