CN-121987893-A - Pre-filled type quick pushing injection syringe

Abstract

The present disclosure relates to a syringe that may be prefilled with a fluid and connected to a bolus infusion accessory to deliver a bolus of fluid to a patient. The rapid infusion attachment may include a spring that, when compressed, provides a spring force to the plunger of the syringe. The device including the syringe and the rapid infusion accessory may be transported and stored such that the syringe is pre-filled and the spring is preloaded or compressed. The device may also be transported and stored with the spring uncompressed, and a clinician or other user may compress the spring prior to attaching the device to an IV set or other fluid pathway. The device may also include a mechanism that allows the clinician to control the flow of fluid. The device may further comprise a locking mechanism which may be released when fluid in the syringe is to be injected.

Inventors

• Ryan Callahan
• Sidas K. sevgul
• Gene E. Mason
• Likert Naruri

Assignees

• 康尔福盛303公司

Dates

Publication Date

20260508

Application Date

20251030

Priority Date

20241104

Claims (20)

1. 1. An apparatus for rapid fluid delivery, the apparatus comprising: A pre-filled syringe having a syringe body, the prefilled syringe is used to provide infusion, the syringe comprises: A syringe barrel for containing a fluid, and A syringe plunger connected to the proximal end of the barrel, and A rapid infusion accessory, wherein the rapid infusion accessory provides increased pressure to drive an infusion, the rapid infusion accessory comprising: an attachment plunger connected to the syringe plunger by a spring; a housing encasing a portion of the attachment plunger, and An actuation mechanism that controls fluid flow from the syringe.
2. 2. The device of claim 1, wherein the attachment plunger comprises a base portion and a hollow channel portion, wherein the hollow channel portion houses the spring.
3. 3. The device of claim 2, wherein the attachment plunger slides to partially encase the hollow channel within the housing.
4. 4. The device of claim 3, wherein the spring is attached to a proximal end of the syringe plunger and a base portion of the hollow channel of the attachment plunger, and wherein the spring is in a compressed position when the hollow channel portion is encased within the housing, and wherein the spring provides an injection force to the syringe plunger when the spring is in the compressed position.
5. 5. The device of claim 4, wherein the hollow channel portion is encased within the housing to compress the spring prior to packaging.
6. 6. The device of claim 4, wherein the hollow channel portion of the attachment plunger comprises external threads and the housing comprises internal threads that interact with the external threads of the hollow channel portion, and wherein the attachment plunger twists to encase the hollow channel portion within the housing.
7. 7. The device of claim 4, wherein the attachment plunger includes a protruding flange at a distal end of the hollow channel portion, and wherein the housing includes an internal groove that snaps over the protruding flange of the attachment plunger such that when a compressive force is applied to a proximal end of the attachment plunger, the hollow channel portion is encased within the housing, and the protruding flange interacts with the internal groove to retain the attachment plunger in its encased position.
8. 8. The device of claim 1, wherein the actuation mechanism is attached to a needle end of the syringe, and wherein the actuation mechanism prevents fluid from flowing out of the syringe when closed and allows fluid to flow out of the syringe when open.
9. 9. The device of claim 1, wherein the distal end of the syringe facilitates attachment of the device to a venous access.
10. 10. The device of claim 1, wherein the syringe barrel is pre-filled with sterile saline or other fluid for rapid fluid injection.
11. 11. The device of claim 1, wherein the housing is removably clamped to the prefilled syringe.
12. 12. An apparatus for rapid fluid delivery, the apparatus comprising: A pre-filled syringe having a syringe body, the prefilled syringe is used to provide infusion, the syringe comprises: a syringe barrel having a proximal end and a distal end, wherein the barrel is filled with a fluid, and A syringe plunger having a liner end and a free end, wherein the liner end is located within the barrel, and A device plunger having a base portion and an elongated core portion, wherein the elongated core portion includes a hollow chamber configured to receive the syringe plunger; a housing having a proximal end and a distal end, wherein the distal end of the housing is attached to the proximal end of the syringe barrel, wherein the housing is configured to receive an elongate core portion of the device plunger, and A pre-compression spring attached to a free end of the syringe plunger and to the device plunger, wherein the pre-compression spring provides an injection force to the syringe plunger.
13. 13. The device of claim 12, further comprising a flow regulating device attached to a distal end of the syringe barrel, wherein the flow regulating device controls fluid flow from the syringe barrel.
14. 14. The device of claim 13, wherein the flow regulating means comprises a valve mechanism for opening and closing a fluid passage.
15. 15. The device of claim 14, wherein opening the fluid passageway allows fluid to be pushed out of the syringe barrel when the spring is depressurized.
16. 16. The device of claim 14, wherein the valve mechanism is electronic and programmable such that the valve mechanism is controlled by a timer to open and close the fluid passageway to apply fluid at a predetermined rate.
17. 17. The apparatus of claim 12, wherein the pre-filled syringe is configured to be inserted into an IV system or a patient.
18. 18. An apparatus for automatic injection dispensing, the apparatus comprising: a syringe barrel having a terminal end and a base end; A spring located within the syringe barrel and attached to a base end of the syringe barrel; a locking mechanism located within the syringe barrel and adjacent the spring, and A plunger located within the syringe barrel adjacent the locking mechanism; wherein the locking mechanism prevents movement of the plunger when activated and allows movement of the plunger when released.
19. 19. The device of claim 18, wherein the syringe barrel is filled with a fluid, and wherein the fluid is pushed out of the syringe barrel by the spring when the locking mechanism is released.
20. 20. The device of claim 19, further comprising a flow regulator attached to the distal end of the syringe, wherein the flow regulator is configurable to infuse fluid at a determined rate.

Description

Pre-filled type quick pushing injection syringe Cross Reference to Related Applications The present application claims priority from U.S. patent application Ser. No.18/936,620, entitled "PREFILLED RAPID BOLUS SYRINGE (Pre-filled Rapid bolus injector)" filed on month 11 and 4 of 2024, the entire contents of which are incorporated herein by reference. Technical Field The present disclosure relates generally to syringes and, more particularly, to rapid fluid delivery. Background Medical treatment typically involves the infusion of a medical fluid (e.g., saline or liquid medication) to a patient using an Intravenous (IV) catheter that is connected to a fluid source, such as an IV bag, through an arrangement of flexible tubing and fittings commonly referred to as an "IV set. In the case of trauma or sepsis where there is a significant loss of blood, the primary response of the healthcare provider is typically to provide rapid fluid resuscitation to restore blood pressure. This is typically achieved by a gravity IV set. Disclosure of Invention The gravity kit may take a long time to set up and the gravity flow rate is often insufficient. The dedicated rapid infuser is not portable and can only be used in high-end medical centers. One or more embodiments of the present disclosure relate to a device for rapid fluid delivery comprising a prefilled syringe for providing an infusion, the syringe comprising a syringe barrel for holding a fluid, and a syringe plunger connected to a proximal end of the barrel, and a rapid infusion fitment, wherein the rapid infusion fitment provides increased pressure to drive the infusion, the rapid infusion fitment comprising an attached plunger connected to the syringe plunger by a spring, and a housing encasing a portion of the attached plunger, and an activation mechanism controlling fluid flow from the syringe. In some embodiments, the attachment plunger includes a base portion and a hollow channel portion, wherein the hollow channel portion houses the spring. In some embodiments, the attachment plunger slides to partially encase the hollow channel within the housing. In some embodiments, a spring is attached to the proximal end of the syringe plunger and the base portion of the hollow channel to which the plunger is attached, and when the hollow channel portion is encased within the housing, the spring is in a compressed position, and when the spring is in the compressed position, the spring provides an injection force to the syringe plunger. In some embodiments, the hollow channel portion is encased within a housing prior to packaging to compress the spring. In some embodiments, the hollow channel portion of the attachment plunger includes external threads and the housing includes internal threads that interact with the external threads of the hollow channel portion, and the attachment plunger twists to encase the hollow channel portion within the housing. In some embodiments, the attachment plunger includes a protruding flange at a distal end of the hollow channel portion, and the housing includes an internal groove that snaps over the protruding flange of the attachment plunger such that when a compressive force is applied to the proximal end of the attachment plunger, the hollow channel portion is enclosed within the housing and the protruding flange interacts with the internal groove to retain the attachment plunger in its enclosed position. In some embodiments, the actuation mechanism is attached to the needle end of the syringe and the actuation mechanism prevents fluid from flowing out of the syringe when closed and allows fluid to flow out of the syringe when open. In some embodiments, the distal end of the syringe facilitates attachment of the device to the venous access. In some embodiments, the syringe barrel is pre-filled with sterile saline or other fluid for rapid fluid injection. In some embodiments, the attachment housing is removably clamped to the prefilled syringe. One or more embodiments of the present disclosure relate to a device for rapid fluid delivery, the device comprising a prefilled syringe for providing infusion, wherein the syringe comprises a syringe barrel having a proximal end and a distal end, wherein the barrel is filled with a fluid, and a syringe plunger having a liner end and a free end, wherein the liner end is located within the barrel, and a device plunger having a base portion and an elongated core portion, wherein the elongated core portion comprises a hollow chamber configured to receive the syringe plunger, a housing having a proximal end and a distal end, wherein the distal end of the housing is attached to the proximal end of the syringe barrel, wherein the housing is configured to receive the elongated core portion of the device plunger, and a precompression spring attached to the free end of the syringe plunger, wherein the precompression spring provides an injection force to the syringe plunger. In some embodiments, the device fur