Syringe assembly

Abstract

The present invention provides a syringe comprising a barrel having a distal end and a proximal end, the barrel defining an internal cavity extending between the distal end and the proximal end. The internal cavity has a circular cross-sectional shape. The syringe includes a locking flange extending outwardly from an outer surface of the barrel. The syringe further includes a plurality of ribs disposed on the outer surface of the barrel. Furthermore, the syringe includes a tip extending from the distal end of the barrel, the tip being threaded.

Description

Cross-citation of related applications

[0001] This application claims priority and benefit to U.S. Provisional Patent Application No. 63 / 622,668, filed January 19, 2024, the disclosure of which is hereby incorporated in its entirety. Technical Field

[0002] This disclosure generally relates to syringes, and more specifically, to syringes used with powered injectors for medical procedures. Background Technology

[0003] Syringes can be used with powered injectors for medical procedures such as angiography, computed tomography, ultrasound, and magnetic resonance imaging. For example, syringes can be used on syringes to inject fluids into the vascular system of humans or animals. Therefore, syringes must be handled with care to avoid damaging the vascular system receiving the injected fluid and to ensure that fluid does not leak from the syringe or that the syringe is not damaged when mounted in a powered injector. Typically, these syringes are smooth and featureless, requiring additional user attention to ensure safe medical procedures. Additionally, these syringes often have a hollow cavity beneath the plunger support. This cavity presents further problems in the clinical setting where syringes are used in medical procedures, particularly as substances from the clinical environment may enter it. Therefore, an improved syringe is needed. Summary of the Invention

[0004] Various details of this disclosure are outlined below to provide a basic understanding. This outline is not an exhaustive summary of this disclosure and is neither intended to identify specific elements of this disclosure nor to limit its scope. In fact, the main purpose of this outline is to present some concepts of this disclosure in a simplified form before the more detailed description presented below.

[0005] According to an embodiment conforming to this disclosure, a syringe includes a barrel having a distal end and a proximal end. The barrel defines an internal cavity extending between the distal end and the proximal end, the internal cavity having a circular cross-sectional shape. The syringe further includes a locking flange extending outwardly from an outer surface of the barrel, the locking flange defining an octagonal shape. The syringe further includes a plurality of ribs disposed on the outer surface of the barrel. The syringe also includes a tip extending from the distal end of the barrel, the tip having threads. Additionally, the syringe includes a plunger assembly slidably disposed within the internal cavity, the plunger assembly including a plunger and a plunger support. The proximal end of the barrel may have a groove configured to receive a seal to seal the internal cavity of the barrel.

[0006] In one embodiment, the plurality of ribs extend between the distal end and the proximal end. The ribs may extend to the tip. Furthermore, the tip may be configured to receive a Luer connector. The syringe barrel may further include conical and cylindrical sections, the conical portion of the barrel at least partially defining a conical shape, and the cylindrical portion at least partially defining a cylindrical shape. The ribs extend to the conical shape. In some embodiments, the outer surface of the barrel defines a non-circular cross-sectional shape. Therefore, a portion of the outer surface of the barrel may be flat. In another embodiment, the ribs may be arranged circumferentially around the outer surface of the barrel.

[0007] In another embodiment, the rib may be a recess in the outer surface of the cylinder. Therefore, the recess may extend from the distal portion to the proximal portion on the outer surface of the cylinder. Alternatively, the recess may be arranged circumferentially on the outer surface of the cylinder.

[0008] According to this disclosure, any combination of the various embodiments and implementations disclosed herein may be used in another embodiment. These and other aspects and features can be understood from the following description of certain embodiments presented herein, based on this disclosure, the accompanying drawings, and the claims. Attached Figure Description

[0009] Figure 1 This is an exploded radial front view of an example syringe assembly according to one or more embodiments.

[0010] Figure 2 yes Figure 1 An exploded radial rear view of an example syringe assembly.

[0011] Figure 3 yes Figures 1 to 2 The example syringe is shown in top view during assembly.

[0012] Figure 4 This is a top view of another example syringe assembly according to one or more alternative embodiments.

[0013] Figure 5 yes Figures 1 to 4 The example syringe assembly is shown in a transparent side view during assembly.

[0014] Figure 6A This is a top perspective view of an example seal that can be used in conjunction with the syringe assembly disclosed herein, according to one or more embodiments.

[0015] Figure 6B yes Figure 6A The example seal is shown in the lower perspective view.

[0016] Figure 7 It is a cross-sectional side view of a seal coupled to a syringe assembly according to one or more embodiments.

[0017] Figure 8A This is a side view of another example syringe assembly according to one or more embodiments.

[0018] Figure 8B This is a side view of an additional example syringe assembly according to one or more embodiments.

[0019] Figure 8C This is a side view of yet another example syringe assembly according to one or more embodiments.

[0020] Figure 9A This is a perspective view of another example syringe assembly according to one or more embodiments.

[0021] Figure 9B According to one or more embodiments Figure 9A A top view of an example syringe assembly.

[0022] Figure 9C According to one or more embodiments Figures 9A to 9B A side view of an example syringe assembly. Detailed Implementation

[0023] Embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. For consistency, the same elements in the various figures may be designated using the same reference numerals. Furthermore, in the following detailed description of embodiments of the present disclosure, numerous specific details are set forth to provide a more thorough understanding of the claimed subject matter. However, those skilled in the art will understand that the embodiments disclosed herein can be practiced without these specific details. In other instances, well-known features are not described in detail to avoid unnecessarily complicating the description. Additionally, those skilled in the art will understand that the scale of the elements presented in the drawings may vary without departing from the scope of the present disclosure.

[0024] The embodiments of this disclosure generally relate to syringes, and more specifically, to syringes for use with powered injectors for medical procedures. The syringes of this disclosure will be used with powered injectors and include several elements, including at least a syringe tip, a syringe body, a plunger or plunger cap, and a plunger holder. The syringe utilizes features on the exterior of the syringe body that may extend partially or completely from the distal end of the syringe to the proximal end, converging at a Luer joint. These elements may encompass ridges, lines, serrations, external patches, external molded recesses, dotted textures, or any other features that may be provided symmetrically or asymmetrically across the exterior of the syringe body. These features on the exterior of the surface syringe body provide the user with an ergonomic grip. Based on the configuration of these features, the exterior of the syringe body can have increased friction between the user and the syringe, enhanced tactile feedback, reduced grip force, and improved comfort compared to the smooth surface of existing syringes. In clinical settings where safety is a concern during medical procedures, the features of the syringe barrel provide enhanced safety by reducing the risk of accidents caused by slippage and giving users improved control and comfort when using the syringe.

[0025] The syringe further includes a seal, which is an element that interfaces with the distal end of the syringe barrel and can be inserted into the cavity below the plunger support. The seal can be inserted within the inner diameter of the syringe barrel or interface with the outer diameter of the syringe barrel. The seal can be removed by the user without the use of specialized equipment or methods. In one example, the seal may use a lug, which the user operates to pry or pull the seal away from the distal end of the syringe. The seal is placed to reduce the possible entry of particles from the clinical environment of the syringe. The seal further covers the distal cavity of the syringe barrel and acts as a protective barrier layer, and further provides the user with visual inspection of the syringe during the manufacturing process. Therefore, the external features of the syringe barrel and the seal of the syringe improve the safety and effectiveness of the syringe compared to existing systems. Specifically, the syringe of this disclosure can be used with powered injectors for medical procedures such as angiography, computed tomography, ultrasound, and magnetic resonance imaging (MRI).

[0026] Figure 1 This is a radial front view of an example syringe assembly 100 according to one or more embodiments. The syringe assembly 100 (hereinafter referred to as syringe system 100 or syringe 100) has a radial front view along its longitudinal axis A. Figure 5 A cylindrical body 104 extending from the distal end 108 to the proximal end 112. The cylindrical body 104 defines an internal cavity 216 extending between the distal end 108 and the proximal end 112. Figure 2The internal cavity 216 of the barrel 104 may have a circular cross-sectional shape. At the proximal end 112 of the barrel 104, the syringe 100 includes a locking flange 120 (sometimes referred to as locking flange 120), which extends outward from the outer surface 124 of the barrel 104 and in a direction radially outward from the internal cavity 216. Although Figure 1 The example syringe 100 is depicted with an octagonal locking flange 120, but the locking flange 120 may have other shapes, as further discussed herein.

[0027] On the outer surface 124 of the barrel 104, the syringe 100 includes a plurality of ribs 128. The ribs 128 are arranged / formed on the outer surface 124 to provide increased friction between the user and the syringe 100, enhanced tactile feedback, reduced grip strength, and improved comfort compared to the smooth surface of existing syringes. The ribs 128 may extend between a distal end 108 and a proximal end 112, and in the illustrated embodiment, the ribs 128 extend between a locking flange 120 and the distal end 108. Figure 1 In the illustrated embodiment, the rib 128 is a longitudinally extending protrusion or ridge that extends along / parallel to the longitudinal axis A of the syringe 100 and protrudes / extends radially outward from the outer surface 124 away from the longitudinal axis A.

[0028] Also in the illustrated embodiment, the syringe 100's barrel 104 includes a conical portion 132 at its distal end 108 and a cylindrical portion 136. The barrel 104 may further include a locking portion 164 configured to be received by an injection device and / or a seal, and the locking portion 164 may be a portion of the cylindrical portion 136, or the locking portion 164 may be located proximal to the cylindrical portion. In the illustrated embodiment, a locking flange 120 is located between the locking portion 164 and the cylindrical portion 136.

[0029] As shown in the figure, the conical portion 132 extends from the distal end 108 towards the proximal end, and the cylindrical portion 136 extends from the proximal end 112 and / or from the locking flange 120 towards the distal end (towards the distal end 108), and the conical and cylindrical portions meet (engage) at a transition. In other words, the cylindrical portion 136 transitions into the conical portion 132 at the transition, and vice versa. Ribs 128 may extend across or along both the conical portion 132 and the cylindrical portion 136, as shown in the figure. Figure 1 As described herein. Similar to the locking flange 120, the arrangement of the ribs 128 may differ in other instances, which will be discussed further herein. In other embodiments, for example, the ribs 128 may extend across or only along one of the conical portion 132 or the cylindrical portion 136.

[0030] Ribs 128 may typically include ridges, lines, serrations, external patches, external molded recesses, dotted textures, or any feature that is moldable, overmolded, glued, or chemically or physically bonded (e.g., sintered). Ribs 128 may be realized and formed by injection molding, polymer blow molding, ultrasonic welding, UV bonding, two-part injection molding, overmolding, or any other means that do not impair the function of syringe 100. Ribs 128 may have varying widths and lengths and may span the length of syringe 104 (e.g., from distal end 108 to proximal end 112) or be arranged symmetrically or asymmetrically perpendicular to it. Syringe 100 and ribs 128 may be made of one or more polymers, such as polypropylene, polyethylene terephthalate, polyurethane, acrylonitrile butadiene styrene, modified polyethylene terephthalate, engineering thermoplastic polyurethane, liquid crystal polymers, high-density polystyrene, low-density polystyrene, or any number of commercially available industrial polymers. Ribs 128 and the barrel 104 may be formed as integral and monolithic structures. However, in some embodiments, ribs 128 are separate structures not attached to the barrel 104 prior to assembly / forming, and then ribs 128 are subsequently attached to the barrel 104 (e.g., via welding) to define the integral and monolithic structures of the syringe 100.

[0031] Furthermore, the syringe 100 includes a tip 148 integrally attached to and extending distally from the barrel 104. The tip 148 extends from the distal end 108 of the syringe 100. In the illustrated embodiment, the tip 148 is configured as a Luer connector and therefore includes threads 152. Specifically, the tip 148 may have internal threads 152 to form a female connector. Thus, the tip 148 defines an apex extending from the conical portion 132. Therefore, a connector 140 having threads 144 (e.g., a male thread 144 corresponding to the internal threads 152 of the tip 148) can be screwed into the tip 148 extending from the conical portion 132. In this way, the connector 140 can be configured to be attached to a corresponding Luer connector of the tip 148. In the illustrated embodiment, rib 128 extends over the cylindrical portion 132 and the conical portion 136, but not over the tip 148, as it instead terminates at the distal end 108 of the conical portion 132. However, in other embodiments, rib 128 may extend across / along the conical portion 132, the cylindrical portion 136, and the tip 148.

[0032] The connector 140, which is to be used with the syringe 100 and can be coupled to the tip 148, can take many forms, depending on the type of power injector used with the syringe 100, the fluid to be discharged from the syringe 100, the medical procedure, etc. The tip 148 and connector 140 can have various configurations, including Luer slide joints, 6% Luer joints, Luer slide joints, Luer locks, or any other configuration for injecting fluid or interfacing with a corresponding device for delivering fluid (e.g., a port, tube, or container of different sizes, shapes, and constructions). Connector 140 can be manufactured via injection molding, polymer blow molding, ultrasonic welding, UV bonding, two-part injection molding, overmolding, or any other means that does not impair the function of the syringe 100.

[0033] The internal cavity 216 of the barrel 104 may have a circular cross-section, which allows the plunger assembly 158 to slidably translate through the internal cavity 216. As shown, the syringe 100 also includes the plunger assembly 158, and the plunger assembly 158 further includes a plunger 156 and a plunger support 160. Here, the plunger 156 is conical in shape with a circular outer diameter, similar to the conical portion 132 of the barrel 104, such that the plunger 156 can sealably contact / engage the inner circumferential surface defined by the internal cavity 216, thereby preventing fluid contained in the internal cavity 216 from escaping from the opening at the proximal end 112 when the plunger assembly 158 is arranged inside the internal cavity 216 of the barrel 104. Therefore, the plunger 156 can travel from the proximal end 112 to the conical portion 132 at the distal end 108 of the barrel 104 (i.e., the plunger assembly 158 can travel to the transition between the conical portion 132 and the cylindrical portion 136). The plunger support 160 rigidly supports the plunger 156 (i.e., provides it with rigidity) and facilitates the placement and movement of the plunger 156 within the internal cavity of the barrel 104. The plunger support 160 stabilizes the plunger 156, enhances control over fluid exchange, and prevents accidental contamination of the contents of the syringe 100. The plunger support 160 may have a generally circular outer diameter, which is slightly smaller than the inner diameter of the internal cavity 216. During assembly, plunger 156 is at least partially positioned above plunger holder 160 to define a single assembly, which is then slidably disposed / arranged internally, wherein the outer circumferential edge of plunger 156 engages the inner circumferential surface of the internal cavity 216, thereby forming a seal between plunger assembly 158 and barrel 104. During use, plunger holder 160 is engaged by the user or a powered syringe to move / slide / translate plunger assembly 158 toward distal end 108, thereby discharging fluid from syringe 100.

[0034] The outer surface 124 of the cylinder may further include surface segments or sections 162, which are arranged and extend between the ribs 128 and longitudinally along the central axis A. In the illustrated embodiment, the surface segments or sections 162 are slightly rounded and include bends, and when the bends of the surface segments or sections 162 are viewed together (e.g., in cross-section), their definition resembles the circular outer periphery / shape of the circular cross-sectional shape / bend defined by the inner wall of the cylinder 104 defining the inner cavity 216 (e.g., and concentric with it). In other instances, while the inner cavity 256 of the cylinder 104 may have a circular cross-sectional shape to facilitate the movement of the plunger assembly 158, the outer surface 124 of the cylinder 104... 24 may have a shape / curvature different from the surface of the internal cavity 256. For example, at least a portion of the outer surface 124 of the cylinder 104 may have a non-circular shape and / or define a flat surface. For example, a surface segment or section 162 of the outer surface 124 between a pair of given ribs 128 may be flat or non-curved (e.g., flat surface 910 of FIG. 9). In other instances, the surface segment or section 162 between the ribs 128 may be triangular in shape when evaluated in cross-section, such that when viewed in a top view (e.g., ... Figures 3 to 4 When evaluated in the top view shown in the image, the overall appearance of the cylinder 104 will have a star shape. However, in Figures 1 to 2 In the illustrated embodiment, the surface segments or sections 162 between the ribs 128 are curved, such that they together provide a circular outer perimeter for the cylindrical portion 136 of the cylinder 104, as... Figure 3 As shown in the diagram. However, in other instances, one or more of the surface segments or sections 162 may be flat (or define a flat surface). Thus, when the segment is curved, the outer surface 124 may have a circular cross-sectional shape; or when the segment is flat, the outer surface 124 may have a polygonal cross-sectional shape, wherein each rib 128 defines a vertex between the surface segments or sections 162 of the outer surface 124. Furthermore, Figure 1 The example syringe 100 illustrates each rib 128 as a protruding ridge extending radially outward from the outer surface 124, thereby providing enhanced ergonomics and a rounded shape compared to the smooth surface of existing syringes. In embodiments, one or more additional features may be provided on surface segments or sections 162 to enhance the end-user's ability to grip the syringe 100, such as bumps, protrusions, dotted textures, etc.

[0035] The syringe 100 further includes a locking portion 164 at the proximal end 112 of the barrel 104. Here, the locking portion 164 is generally cylindrical in shape, such that it has a circular opening. Figure 2(The plunger assembly 158 can be inserted therein) and a cylindrical outer periphery 168. The locking portion 164 further includes one or more recesses 172. In an example where the barrel 104 of the syringe 100 is manufactured via molding, one or more recesses 172 may be formed / set to facilitate such molding processes of the barrel 104, and more specifically, to allow easier release of the barrel 104 during the molding process. Furthermore, one or more recesses 172 may receive a seal 610 ( Figure 6A , 6B 7), wherein the seal 610 is configured to be removably attached to the locking portion 164 as described below.

[0036] Furthermore, the plunger 156 may incorporate a soft yet structurally resilient design, making it flexible yet conforming to a given shape, and may be made from natural rubber, latex derivatives, catalytic monomer contact materials (e.g., neoprene, EPDM, styrene-butadiene, butyl rubber, fluoropolymers, silicone, nitrile rubber), or any number of commercially available industrial hydrocarbon derivatives. Thus, the plunger 156 may be made of flexible or semi-flexible materials. Therefore, the plunger 156 may be manufactured, for example, by a vulcanizing compression molding process. The plunger 156 is, for example, molded into a sheet, and then manually cut from the sheet (via a die). Once cut, this element may be washed, for example, in a silicone cleaning solution, and then assembled onto a plunger holder 160 for insertion into the syringe 100. The plunger holder 160 may be made of various types of materials operable to rigidly maintain the shape of the plunger 156 and engage with the plunger of a power syringe. The plunger 156 (possibly together with the plunger support 160) may interface with a fluid (e.g., physiological saline, isotonic water, contrast agent solution, ionic or nonionic iodine-based contrast agent, or any application deemed necessary in the fields of radiographic imaging, diagnostic imaging, or any related fields). The plunger 156 extends completely into the inner wall of the syringe 104. The plunger 156 may also have protrusions or lumps that act as gas seals or gaskets to ensure that no leakage occurs during any stage of storage, filling, injection, or loading of the fluid into the syringe 100 when any of the aforementioned fluids is loaded under nominal use conditions. The syringe 100 achieves the pressure of the injected fluid by pneumatic force applied to the plunger support 160 and / or the plunger 156 by the plunger of the power injector, thereby causing the plunger assembly 158 to slide. The forward sliding motion of the plunger assembly 158 within the barrel 104 pressurizes the fluid within the syringe 100, and the pressurized fluid is injected into the patient via the syringe outlet communicating with the tip 148 and the connector 140.

[0037] The plunger support interacts with and supports the plunger 156 160, thereby maintaining engagement and sealing between the plunger 156 and the inner surface of the internal cavity 216. The plunger support interaction 160 can be made from one of several polymers, such as polypropylene, polyethylene terephthalate, polyurethane, acrylonitrile butadiene styrene, modified polyethylene terephthalate, engineering thermoplastic polyurethane, liquid crystal polymers, high-density polystyrene, low-density polystyrene, or any number of commercially available industrial polymers. The plunger support 160 can be manufactured by injection molding, polymer blow molding, ultrasonic welding, UV bonding, two-part injection molding, or any other method to achieve the design of the plunger support 160. The plunger 156 may be attached to the top of the plunger holder 160 in a variety of ways, most commonly by UV-cured adhesive, friction, interfacing protrusions recessed into the plunger 156, threads, or any other method that ensures the plunger 156 remains on the plunger holder 160 during transport, temporary storage, filling, injection, or loading of fluid into the syringe 100, or when the syringe 100 is used in other ways.

[0038] The optimal combination of locking part 164 and internal cavity 216 Figure 2 Check, Figure 2 Description according to one or more embodiments Figure 1 The following is a radial rear view of an example syringe 100. Here, the internal cavity 216 of the syringe 100 is visible and is illustrated as having a generally circular cross-section. More specifically, the internal cavity 216 is visible through an opening 220 in the locking portion 164.

[0039] Figure 3 The illustration shows a front view of the syringe 100 according to an embodiment. As illustrated, surface segments or sections 162 of the syringe 104 (which are rounded and include bends in the illustrated embodiment) generally define the generally circular outer surface 124 of the syringe 104 together. Ribs 128 are also present. Figure 3 The description indicates that it extends to the tip 148, but not to the tip itself. Furthermore, Figure 3 An octagonal locking flange 120 is depicted at the top of the syringe 100. The locking flange 120 may have a varied shape, for example, as shown in the image. Figures 1 to 3 The polygonal shape shown. That is, the locking flange 120 may have edges or sides 310, which have a corresponding number of vertices 320 to form a shape that conforms to the desired clinical environment. In other words, the locking flange 120 can have various shapes depending on the desired clinical environment. Figures 1 to 3 Depicting the following example: the locking flange 120 is octagonal in shape, and such octagonal shape of the locking flange 120 provides a locking flange 120 having eight (8) discrete sides 310, as best in Figure 3 As shown in the image. Figure 4 A front view illustrating another example of the syringe 100, wherein the locking flange 120 is generally circular in shape. That is, Figure 4 The locking flange 120 of the embodiment when viewed from the top view ( Figure 4 The locking flange 120 is shaped as a circle, either when evaluated from a bottom view or when viewed in a cross-section through the locking flange 120. Because the locking flange 120 is shaped as a circle in this embodiment, the locking flange 120 generally has a single side 410, and this single side 410 of the locking flange 120 is the outer circumference of the circular locking flange 120. In other embodiments, the locking flange 120 may have other shapes, and such other types of shapes may include polygonal shapes, oval shapes, elliptical shapes, etc.

[0040] Figure 5 yes Figure 1 The example syringe 100 is shown in a transparent assembled view. Here, the tip 148 is screwed into the tip 148 of the conical portion 132 of the syringe body 104. Furthermore, the plunger 156 and plunger support 160 are an assembly and are slidably inserted into the syringe body 104. Figure 5 This describes the ability of the plunger assembly 158 to slidably translate from the proximal end 112 to the distal end 108 within the internal cavity 216 of the cylinder 104, which can be achieved by pneumatic pressure applied by an external device. Furthermore, Figure 5 The locking portion 164 is described as having a stop flange 510.

[0041] Return to reference Figure 2 The opening 220 in the syringe 104 is defined in the locking portion 164 (i.e., the locking portion 164 includes the opening 220). To prevent unwanted particles (e.g., particles from the clinical environment or encountered during manufacturing, transportation, storage, etc.) from entering the syringe 100, the syringe may further include a seal 610. Figure 6A and 6B This describes a seal 610 according to one or more embodiments. Specifically, Figure 6A A top radial view of a seal 610 according to one or more embodiments is illustrated, and a bottom radial view of a seal 610 according to one or more embodiments is illustrated. The seal 610 may be fastened to a locking portion 164, and more specifically, to one or more recesses 172 defined on the locking portion 164. The seal 610 may have a shape generally similar to the locking portion 164, and may be sized and shaped to block and cover the opening 220, thereby preventing unwanted debris from entering the internal cavity 216. Here, the seal 610 has a circular shape whose size matches the opening 220 of the locking portion 164.

[0042] Seal 610 has a top surface 614 ( Figure 6A) and bottom surface 618 ( Figure 6B The seal 610 has a bottom surface 618 opposite (or opposite) to a top surface 614. The seal 610 also has peripheral side surfaces 622 forming the periphery of the seal 610 and defining the shape (e.g., circular) and thickness of the seal 610. The seal 610 further includes a lug 630 projecting from the peripheral side surface 622 and extending in one direction (from the top surface 614 toward the bottom surface 618) beyond and beyond the bottom surface 618. The lug 630 may further include a hook portion 634 and an extension portion 638. Specifically, the extension portion 638 of the lug 630 may extend away from the top surface 614 and beyond / beyond the bottom surface 618. The hook portion 634 may extend radially inward toward the centerline L of the seal 610 and parallel to the bottom surface 618. The seal 610, and more specifically, the extension 638 of the lug 630, may be made of a flexible material to allow the hook portion 634 to "lock" into the groove 172 of the locking portion 164 (at least in Figures 1 to 2 middle).

[0043] The seal 610 includes a body portion 636 having an extension portion 638 attached to and extending from the body portion 636, as detailed above. The body portion 636 may be made of various types of materials. The body portion 636 is sized and shaped to cover / block the opening 220 in the syringe 104, as detailed above. In some instances, the body portion 636 may be a flexible diaphragm, flexible membrane, semi-rigid diaphragm, semi-rigid membrane, rigid diaphragm, rigid membrane, or any kind of feature that partially or completely covers to cover the distal end 108 of the syringe 100. The seal 610 is configured such that it can be removed from the syringe 104 by the end user without the use of special equipment, special methods, and by human effort. Specifically, the lug 630 can be engaged by the user to pry or pull the hook portion 634 out of engagement with the groove 172, and then pull the seal 610 away from the proximal end 112 of the syringe 100. Alternatively, a pull cord or other feature may be attached to the seal 610 or the cylinder 104 to assist in prying the seal 610 away from the distal end 108. Any feature that assists in providing a larger or easier drawing area for the user, or provides mechanical assistance, may also be attached, provided that removing the pull cord / feature from the cylinder 104 leaves no trace and no part of the seal 610 remains in the internal cavity 216. In other embodiments, the seal 610 may be attached to the proximal end 112 of the cylinder 104 by: physical spiral insertion, interfacing with an attachment point on the locking portion 164, frictional engagement within the internal cavity 216 or above the outer periphery 168 of the cylinder 104, interfacing with a locking lug, intermittent threads, snap-fit ​​by friction, adhesive lugs / pull cords, or any other means that allow the seal 610 to be attached to the cylinder 104 and withstand transport by the end user.

[0044] Furthermore, the seal 610 is made of a material capable of withstanding sterilization via one or more mechanisms of action (including, but not limited to, steam, gamma radiation, or ethylene oxide) or methods consistent with those used in medical devices, and is composed of one or more polymers, such as polypropylene, polyethylene terephthalate, polyurethane, acrylonitrile butadiene styrene, modified polyethylene terephthalate, engineering thermoplastic polyurethane, liquid crystal polymers, high-density polystyrene, low-density polystyrene, or any number of commercially available industrial polymers. Furthermore, the seal 610 can be manufactured by various methods, including, but not limited to, injection molding, polymer blow molding, ultrasonic welding, UV bonding, two-part injection molding, or any other method to achieve the design of the seal 610.

[0045] Figure 7 This illustration shows a cross-sectional view of the locking portion 164 of the syringe 100 when the seal 610 is engaged, according to one or more embodiments. Figure 7As described, the hook portion 634 of the locking lug 630 engages within the groove 172 of the locking portion 164. When the seal 610 engages with the locking portion 164, the bottom surface 618 of the seal 610 shields and blocks the opening 220 of the locking portion 164, thereby sealing the closed opening 220. This, in turn, helps prevent contaminants or particles from entering the barrel 104 and plunger assembly 158 of the syringe 100.

[0046] Figures 8A to 8C This section describes alternative designs for the syringe 100 based on various alternative embodiments. The above section is about... Figures 1 to 7 The detailed description of the syringe body 104 is as follows: Figures 8A to 8C Configure as detailed above. In other words, refer to... Figures 8A to 8C The syringe barrel 104 described herein may be a syringe barrel 104 used with the example syringe 100 detailed herein. As previously noted, different arrangements of the ribs 128 can be used to provide varied ergonomic grips, for example... Figures 1 to 3 Rib 128 extends from the distal end 108 to the locking flange 120. Figure 8A In this configuration, ribs 128 are arranged circumferentially around the outer surface 124 of the cylinder 104, such that each rib 128 resembles a ring protruding from the outer surface 124. By arranging the ribs 128 circumferentially around the outer surface 124 in this manner, the ribs 128 enhance the strength and rigidity of the cylinder 104 to prevent deformation under pressure. Figure 8A In the middle, rib 128 protrudes from the outer surface 124 of the cylinder 104. Similarly, in... Figure 8A In this embodiment, the locking flange 120 is shaped like an octagon, but in other embodiments, the locking flange 120 may have other shapes, such as a circular shape or other polygonal shapes.

[0047] exist Figure 8B In this design, the outer surface 124 of the cylinder 104 has recesses 810 instead of protruding ribs 128. In some examples, the recesses 810 define annular recesses, with opposing protrusions 811 defined between adjacent recesses 810, and the opposing protrusions 811 effectively define annular “ribs” extending around the cylinder 104, as shown. The recesses 810, together with the opposing protrusions 811 therebetween, generate friction on the outer surface 124 to improve the ergonomics of the cylinder 104, similar to the ribs 128. Therefore, Figure 8B The outer surface 124 of the cylindrical body 104 is depicted having recesses 810 arranged circumferentially around the outer surface 124 of the cylindrical body 104 to thereby define protrusions 811 (or ribs) therebetween. Similarly, Figure 8BIn this embodiment, the locking flange 120 is shaped similarly to an octagon, but in other embodiments, the locking flange 120 may have other shapes, such as a circular shape or other polygonal shapes. In still other embodiments, the outer surface 124 of the cylinder 104 may include a combination of both ribs 128 and recesses 810, and in such embodiments, the ribs 128 may extend longitudinally, such as... Figure 1 As shown, rib 128 may be arranged on the protrusion 811 and define an annular protrusion oriented similarly to the protrusion 811 to define a ring. Again, both rib 128 and recess 810 may be located at the cylindrical portion 136 and the conical portion 132.

[0048] In another example, Figure 8C An embodiment in which the cylindrical body 104 includes a plurality of faceted flat surfaces 813, wherein curved / rounded transition portions 814 are arranged between each of the flat surfaces 813. In this way, instead of the flat surfaces 813 engaging with each other at sharp joints, they smoothly transition into each other via bends defined by the rounded transition portions 814. Both the flat surfaces 813 and the curved transition portions 814 arranged therebetween extend longitudinally from the distal end 108 to the locking flange 120 of the cylindrical body 104. Here, for example, both the flat surfaces 813 and the curved transition portions 814 extend onto the conical portion 132 of the cylindrical body 104. However, in other embodiments, neither or both of the flat surfaces 813 and the curved transition portions 814 extend onto the conical portion 132 of the cylindrical body 104. Similarly, in… Figure 8C In this embodiment, the locking flange 120 is shaped similarly to an octagon, but in other embodiments, the locking flange 120 may have other shapes, such as a circular shape or other polygonal shapes. Similarly, in... Figures 8A to 8C In the embodiment shown, the syringe 100 includes a rib 128 extending longitudinally (parallel to longitudinal axis A) along the tip 148.

[0049] Figures 9A to 9C To illustrate another example of a syringe barrel 104, features are provided on its outer surface 124 to provide an ergonomic syringe 100. Here, the outer surface 124 of the barrel 104 does not have features as described above relative to... Figure 1 The detailed rib 128. Alternatively, the outer surface 124 of the cylinder 104 includes faceted flat surfaces 910 connected by rounded corners 920, similar to... Figure 8C The embodiment depicted herein. In this embodiment, the conical portion 132 does not have ribs 128. Furthermore, in this embodiment, the conical portion 132 does not include a flat surface 910 or any other feature (e.g., ribs 128), but the tip 148 includes features similar to those in the reference. Figures 8A to 8CThe longitudinal rib 128 is described. Alternatively, in this embodiment, the conical portion 132 is simply conical in shape and does not include any ribs 128 (such as the tip 148), nor does it include multiple faceted flat surfaces 910 and rounded corners 920 (such as the outer surface 124 of the cylinder 104). However, in some alternative instances, the tip 148 does not include ribs 128. As is best in Figure 9B As depicted in the top view of the syringe 100, in the illustrated example, the outer surface 124 of the syringe 104 includes ten faceted flat surfaces 910. Similarly, the outer surface 124 of the syringe 104 includes ten rounded corners 920 between adjacent flat surfaces 910. Although Figures 9A to 9C The example syringe barrel 104 has ten faceted flat surfaces 910 and corners 920. However, it should be understood that the syringe barrel 104 is not limited to ten, and in other embodiments, it may contain more or less than ten faceted flat surfaces 910. That is, the example syringe barrel 104 may have fewer or more than ten faceted flat surfaces 910 and corners 920. In addition, the syringe barrel 104 may have a combination of ribs 128, recesses 810, faceted flat surfaces 910, and corners 920.

[0050] The embodiments of the syringe 100 described in this disclosure can be used with powered injectors, for example, powered injectors for use in medical procedures such as angiography, computed tomography, ultrasound, and magnetic resonance imaging (MRI). The syringe 100 detailed herein is operable to inject fluid into a human or animal body, such as the vascular system. While conventional syringes are smooth and unfeatured, the syringe 100 of this disclosure has various arrangements of ribs 128 and other features that improve the ergonomics and usability of the syringe 100. Typically, syringes have a hollow cavity below the plunger support 160, and in the industry, there are safety concerns, particularly concerning the entry of particles from the clinical environment (or other places) where the syringe is used. To address this issue, the disclosed embodiment of the syringe 100 may include a seal 610 operable to cover the opening 220 of the syringe body 104 and act as a protective barrier layer to prevent unwanted particles from entering the body 104. The groove 172 also serves as a visual inspection tool for the end user, confirming that the syringe 100 has been validated during the manufacturing process and is sterile enough for clinical use. Specifically, the groove 172 not only secures / couples / attaches the seal 610 to the body 104 but also provides a visual safety check.

[0051] The embodiments disclosed herein include:

[0052] A. A syringe comprising: a body having a distal end and a proximal end, the body defining an internal cavity extending between the distal end and the proximal end, the internal cavity having a circular cross-sectional shape; a locking flange extending outward from an outer surface of the body, the locking flange defining an octagonal shape; and a plurality of ribs disposed on the outer surface of the body.

[0053] Each of embodiments A through C may have any combination of one or more of the following additional elements: Element 1: The plurality of ribs extend between the distal end and the proximal end. Element 2: A tip extending from the distal end of the cylinder, wherein the tip includes threads. Element 3: The plurality of ribs extend between the distal end and the proximal end, and the plurality of ribs extend onto the tip. Element 4: The tip is configured to receive a Luer connector. Element 5: The cylinder further includes a conical portion and a cylindrical portion, the conical portion of the cylinder at least partially defining a conical shape, and the cylindrical portion at least partially defining a cylindrical shape. Element 6: The ribs extend onto the conical shape. Element 7: The outer surface of the cylinder defines a non-circular cross-sectional shape.

[0054] Element 8: The portion of the outer surface between the ribs is flat. Element 9: A plunger assembly slidably disposed within the internal cavity of the cylinder, wherein the plunger assembly includes a plunger and a support. Element 10: A seal. Element 11: A groove at the proximal end of the cylinder, configured to receive the seal to protect the internal cavity. Element 12: The plurality of ribs are arranged circumferentially around the outer surface of the cylinder. Element 13: The plurality of ribs protrude from the outer surface of the cylinder. Element 14: The plurality of ribs are annular recesses in the outer surface of the cylinder.

[0055] As a non-limiting example, exemplary combinations applicable to A include: element 1; element 2; element 3; element 3 and element 2; element 4 and element 2; element 5; element 6 and element 5; element 7; element 8 and element 7; element 9; element 10 and element 9; element 11 and element 10; element 12; element 13 and element 12; and element 14 and element 13.

[0056] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein, for example, the singular forms “a” and “described” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the terms “containing,” “comprising,” and / or “including,” and variations thereof, when used in this specification, specify the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof.

[0057] The directional terms used herein are for convention and reference purposes only and should not be construed as restrictive. However, it should be understood that these terms may be used by reference to the operator or user. Therefore, no limitation is implied or inferred. Furthermore, the use of ordinal numbers (e.g., first, second, third, etc.) is for distinction rather than counting. For example, the use of “third” does not imply the existence of a corresponding “first” or “second.” Similarly, if used herein, the terms “coupled” or “coupled to” or “connected” or “attached” or “attached to” may indicate the establishment of a direct or indirect connection, and are not limited to either, unless expressly so cited.

[0058] While this disclosure has described several exemplary embodiments, those skilled in the art will understand that various changes can be made without departing from the spirit and scope of the invention, and equivalents can be substituted for its elements. Furthermore, those skilled in the art will understand that many modifications can be made to adapt particular instruments, situations, or materials to embodiments of this disclosure without departing from the basic scope of this disclosure. Therefore, it is intended that the invention be limited to the specific embodiments disclosed or as the contemplated best mode for carrying out the invention, but rather that the invention encompass all embodiments falling within the scope of the appended claims. Moreover, references in the appended claims to a device or system or component of a device or system adapted to, arranged to, capable of, configured to, enabled to, operable to, or operated to perform a particular function cover said device, system, or component, whether or not it or said particular function is activated, turned on, or unlocked, provided that said device, system, or component is so adapted, arranged, capable of, configured, enabled, operable, or operated.

Claims

1. A syringe comprising: A cylindrical body having a distal end and a proximal end, the cylindrical body defining an internal cavity extending between the distal end and the proximal end, the internal cavity having a circular cross-sectional shape; A locking flange extends outward from the outer surface of the cylinder, and the locking flange defines an octagonal shape; as well as Multiple ribs are arranged on the outer surface of the cylinder.

2. The syringe of claim 1, wherein the plurality of ribs extend between the distal end and the locking flange.

3. The syringe of claim 1, further comprising a tip extending from the distal end of the syringe body, wherein the tip comprises threads.

4. The syringe of claim 3, wherein the plurality of ribs extend between the distal end and the locking flange, and the plurality of ribs extend to the tip.

5. The syringe of claim 3, wherein the tip is configured as a Luer connector.

6. The syringe of claim 1, wherein the syringe body further comprises a conical portion and a cylindrical portion, the conical portion of the syringe body at least partially defining a conical shape, and the cylindrical portion at least partially defining a cylindrical shape.

7. The syringe of claim 6, wherein the rib extends onto the conical shape.

8. The syringe of claim 1, wherein the outer surface of the syringe body defines a non-circular cross-sectional shape.

9. The syringe of claim 8, wherein the portion of the outer surface between the ribs is flat.

10. The syringe of claim 1, further comprising a plunger assembly slidably disposed within the internal cavity of the syringe body, wherein the plunger assembly comprises a plunger and a support.

11. The syringe of claim 1, further comprising a seal removably attachable to the syringe body.

12. The syringe of claim 11, wherein the syringe body further includes a groove configured to receive the seal to protect the internal cavity.

13. The syringe of claim 1, wherein the plurality of ribs are arranged circumferentially around the outer surface of the syringe body.

14. The syringe of claim 13, wherein the plurality of ribs protrude from the outer surface of the syringe body.

15. The syringe according to claim 14, wherein the plurality of ribs are annular recesses in the outer surface of the syringe body.

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