Infusion bag structure with double needle-free connectors

Abstract

The utility model discloses an infusion bag structure with double needleless joints, and aims to solve the problems that in the prior art, when a needle cylinder syringe is used for adding medicine into an infusion bag, a syringe needle needs to pierce the infusion bag, at the moment, needle stabbing is prone to occurring, pollution is increased, an infusion bottle plug needs to be pierced by an infusion apparatus when nurses conduct intravenous infusion on a patient, and infusion is inconvenient. The needle stick injury is easily caused; the infusion particles are increased; and the pollution is caused. The infusion bag structure comprises an infusion bag, a liquid drainage pipe is installed in the infusion bag in a penetrating mode, a first external thread connector is installed at the bottom end of the liquid drainage pipe, and a first valve shell is arranged below the first external thread connector. At the moment, the needle injury is easy to occur, pollution is increased, and when nurses carry out intravenous infusion on patients, an infusion bottle plug needs to be punctured by an infusion apparatus, the needle injury is also easy to cause, and infusion particles and pollution are increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical appliances, and in particular relates to an infusion bag structure with double needle-free connectors. Background Art

[0002] Infusion bags are mainly used for drug delivery. Drugs prescribed by doctors can be delivered to patients through infusion bags. The capacity of infusion bags is generally between 100 and 1000 ml, which can be selected according to the actual situation and treatment needs of patients. When nurses use syringes to add drugs into infusion bags, the syringe needle needs to pierce the infusion bag, which is prone to needle stick injuries and increases pollution. When nurses give intravenous infusions to patients, the infusion set needs to pierce the infusion bottle stopper, which is also prone to needle stick injuries, increasing infusion particles and pollution. Therefore, a new infusion bag structure with a double needle-free connector is designed to change the above technical defects. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an infusion bag structure with a double needle-free connector, which aims to solve the technical problems that when adding medicine into the infusion bag with a syringe syringe under the prior art, the syringe needle needs to pierce the infusion bag, which is prone to needlestick injuries and increases pollution. When nurses give intravenous infusion to patients, the infusion set needs to pierce the infusion bottle stopper, which is also prone to needlestick injuries and increases infusion particles and pollution.

[0005] (2) Technical solution

[0006] In order to solve the above technical problems, the utility model provides an infusion bag structure with a double needle-free connector, which includes an infusion bag, a drainage tube is installed through the interior of the infusion bag, and a first external threaded connector is installed at the bottom end of the drainage tube, a first valve shell is arranged below the first external threaded connector, and an internal threaded tube is installed through the top end of the first valve shell, an elastic rubber seat is arranged inside the first valve shell, the top end of the elastic rubber seat is fixedly connected to the inner wall of the first valve shell, and a slit is opened on the outer surface of the elastic rubber seat, a second valve shell is installed through the outer surface of the first valve shell, and an end of the second valve shell away from the first valve shell is installed through There is a second external threaded joint, a sealing ring is installed on the inner wall of the second valve shell, a dosing barrel is slidably installed inside the second external threaded joint, and the dosing barrel is slidably installed inside the sealing ring, a dosing hole is opened on the outer surface of the dosing barrel, a sliding ring is fixedly connected to the outer surface of the dosing barrel, a spring is sleeved on the outside of the dosing barrel, and the two ends of the spring are respectively fixedly connected to the outer surfaces of the sealing ring and the sliding ring, a sealing cover is arranged below the infusion bag, a connecting head is arranged below the first valve shell, and an infusion tube is installed at the bottom end of the connecting head, a lifting head is installed inside the connecting head, and a rotating gear lever is installed at the bottom end of the connecting head, and a hook is fixedly connected to the bottom end of the first valve shell.

[0007] When using the infusion bag structure of the present technical solution, the sealing cap is unscrewed from the first externally threaded joint so that the first externally threaded joint is screwed into the interior of the internally threaded tube and connected to the first valve housing. Then, the sealing cap is taken and screwed on the second externally threaded joint to seal the second valve housing to prevent the second valve housing from entering dust or germs and causing contamination during use. The connecting head is taken and inserted with the lifting head from the bottom end of the first valve housing. The rotating connecting head is rotated with the rotating gear lever to rotate into the hook to fix it. The lifting head rises against the bottom end of the elastic rubber seat to squeeze it. The middle part of the elastic rubber seat is squeezed and expanded outward to open the slit. The medicinal liquid in the infusion bag enters the elastic rubber seat in the first valve housing through the discharge tube. The medicinal liquid in the elastic rubber seat enters the first valve housing through the slit. The medicinal liquid in the first valve housing enters the connecting head and flows out through the infusion tube for infusion. When the patient needs to add medicine during the infusion process, the threaded syringe is screwed onto the second externally threaded joint. The syringe head pushes the dosing cartridge toward the first valve housing, and the dosing cartridge moves the compression spring with the sliding ring, and the dosing hole on the surface of the dosing cartridge separates from the sealing ring and leaks out, and the medicine is pushed out by the syringe and enters the dosing cartridge, flows out from the dosing hole and enters the second valve housing, and the medicine in the second valve housing enters the interior of the first valve housing and mixes with the medicine flowing out of the infusion bag and flows out, unscrews the infusion set from the second external threaded joint, pulls out the infusion set, and pushes the sliding ring with the dosing cartridge to reset under the action of the spring force, so that the dosing hole and the sealing ring overlap and are closed, and the first valve housing and the second valve housing are used in combination to realize needle-free connection and dosing, avoiding the need for the syringe needle to pierce the infusion bag when adding medicine into the infusion bag with the traditional syringe. At this time, needlestick injuries are prone to occur, increasing pollution. When nurses give intravenous infusion to patients, the infusion set needs to pierce the infusion bottle stopper, which is also prone to needlestick injuries, increasing technical problems such as infusion particles and pollution.

[0008] Furthermore, a limiting groove is provided at the bottom of the elastic rubber seat. Through the setting of the limiting groove, the top end of the lifting head is inserted into the inside of the limiting groove, thereby increasing the stability of the lifting head when it is pushed up.

[0009] Furthermore, a flap is fixedly connected to the outer surface of the infusion bag, and a hanging hole is provided on the outer surface of the flap. The arrangement of the flap facilitates the infusion bag to be hung and installed, thereby ensuring its convenience in use.

[0010] Furthermore, a sealing column is fixedly connected to the inside of the sealing cover, and the material of the sealing column is rubber. The sealing effect of the first external thread joint is increased by setting the sealing column.

[0011] Furthermore, a positioning groove is provided on the outer surface of the syringe. The positioning groove is provided to facilitate the positioning of the infusion end of the syringe and the installation of the syringe.

[0012] (3) Beneficial effects

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is characterized in that the sealing cover is unscrewed from the first external thread joint, so that the first external thread joint is screwed into the interior of the internal thread pipe and connected with the first valve shell, and then the sealing cover is held and screwed on the second external thread joint to seal the second valve shell, so as to prevent the second valve shell from entering dust or bacteria and causing pollution when in use, the connecting head is held and inserted with the lifting head from the bottom end of the first valve shell, the connecting head is rotated and rotated with the rotating gear lever to enter the hook to fix it, the lifting head rises against the bottom end of the elastic rubber seat to squeeze it, the middle part of the elastic rubber seat is squeezed and expanded to the outside to open the slit, the medicine liquid in the infusion bag enters the elastic rubber seat in the first valve shell through the discharge pipe, the medicine liquid in the elastic rubber seat enters the first valve shell through the slit, the medicine liquid in the first valve shell enters the connecting head and flows out through the infusion tube for infusion, and when the patient needs to add medicine during the infusion process, the threaded syringe is screwed onto the second external thread joint, and the syringe injection The head of the instrument pushes the dosing cartridge toward the first valve shell, and the dosing cartridge moves the compression spring with the sliding ring, and the dosing hole on the surface of the dosing cartridge separates from the sealing ring and leaks out, and the medicine is pushed out by the syringe syringe into the dosing cartridge, flows out from the dosing hole into the second valve shell, and the medicine in the second valve shell enters the interior of the first valve shell and mixes with the medicine flowing out of the infusion bag and flows out, the infusion set is unscrewed from the second external threaded joint, the infusion set is pulled out, and the sliding ring is pushed to reset the dosing cartridge under the action of the spring force, so that the dosing hole and the sealing ring overlap and are closed, and the first valve shell and the second valve shell are used in combination to realize needle-free connection and dosing, avoiding the need for the syringe needle to pierce the infusion bag when adding medicine into the infusion bag with a syringe in the traditional way, which is prone to needlestick injuries and increases pollution. When nurses give intravenous infusion to patients, they need the infusion set to pierce the infusion bottle stopper, which is also prone to needlestick injuries and increases technical problems of infusion particles and pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural diagram of the infusion bag structure of the utility model;

[0016] Figure 2 This is a bottom-up three-dimensional structural diagram of the first valve housing and the second valve housing of the infusion bag structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the first valve housing and the second valve housing of the infusion bag structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the infusion bag structure of the utility model;

[0019] Figure 5 The utility model is an infusion bag structure Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 6 It is a schematic diagram of the cross-sectional structure of the elastic rubber seat of the infusion bag structure of the utility model.

[0021] The markings in the accompanying drawings are: 1. infusion bag; 2. folding piece; 3. lifting head; 4. infusion tube; 5. internal threaded tube; 6. first valve housing; 7. discharge tube; 8. hook; 9. limit groove; 10. second valve housing; 11. second external threaded joint; 12. sealing cover; 13. sealing column; 14. slit; 15. elastic rubber seat; 16. sealing ring; 17. spring; 18. sliding ring; 19. dosing cartridge; 20. positioning groove; 21. first external threaded joint; 22. dosing hole; 23. connecting head; 24. rotating gear lever. DETAILED DESCRIPTION

[0022] This specific embodiment is an infusion bag structure with a double needleless connector, and its structural schematic diagram is shown as follows: Figure 1-Figure 6 As shown, an infusion bag structure with a double needle-free connector includes an infusion bag 1, a drainage tube 7 is installed through the interior of the infusion bag 1, and a first external threaded connector 21 is installed at the bottom end of the drainage tube 7, a first valve housing 6 is arranged below the first external threaded connector 21, and an internal threaded tube 5 is installed through the top end of the first valve housing 6, an elastic rubber seat 15 is arranged inside the first valve housing 6, the top end of the elastic rubber seat 15 is fixedly connected to the inner wall of the first valve housing 6, and a slit 14 is opened on the outer surface of the elastic rubber seat 15, a second valve housing 10 is installed through the outer surface of the first valve housing 6, and a second external threaded connector 11 is installed through the end of the second valve housing 10 away from the first valve housing 6, and the inner wall of the second valve housing 10 is provided with a A sealing ring 16 is installed, a dosing cylinder 19 is slidably installed inside the second external threaded joint 11, and the dosing cylinder 19 is slidably installed inside the sealing ring 16, a dosing hole 22 is opened on the outer surface of the dosing cylinder 19, a sliding ring 18 is fixedly connected to the outer surface of the dosing cylinder 19, a spring 17 is sleeved on the outside of the dosing cylinder 19, and both ends of the spring 17 are respectively fixedly connected to the outer surfaces of the sealing ring 16 and the sliding ring 18, a sealing cover 12 is arranged below the infusion bag 1, a connecting head 23 is arranged below the first valve shell 6, and an infusion tube 4 is installed at the bottom end of the connecting head 23, a lifting head 3 is installed inside the connecting head 23, and a rotating gear lever 24 is installed at the bottom end of the connecting head 23, and a hook 8 is fixedly connected to the bottom end of the first valve shell 6.

[0023] Among them, the bottom end of the elastic rubber seat 15 is provided with a limiting groove 9. Through the setting of the limiting groove 9, the top end of the lifting head 3 is inserted into the limiting groove 9, which increases the stability of the lifting head 3 when pushing 9 upward. The outer surface of the infusion bag 1 is fixedly connected with a folding piece 2, and the outer surface of the folding piece 2 is provided with a hanging hole. Through the setting of the folding piece 2, it is convenient for the infusion bag 1 to be suspended and installed, ensuring its convenience in use. The sealing column 13 is fixedly connected to the inside of the sealing cover 12, and the material of the sealing column 13 is rubber. Through the setting of the sealing column 13, the sealing effect of the first external threaded joint 21 is increased.

[0024] In addition, a positioning groove 20 is provided on the outer surface of the drug delivery barrel 19. The positioning groove 20 is provided to facilitate the positioning of the infusion end of the syringe and the installation of the syringe.

[0025] Working principle: When using the infusion bag structure of the present technical solution, the sealing cover 12 is unscrewed from the first external threaded joint 21, so that the first external threaded joint 21 is screwed into the interior of the internal threaded tube 5 and connected with the first valve housing 6, and then the sealing cover 12 is screwed on the second external threaded joint 11 to seal the second valve housing 10 to prevent dust or germs from entering the second valve housing 10 during use and causing contamination, and the connecting head 23 is inserted from the bottom end of the first valve housing 6 with the lifting head 3, and the connecting head 23 is rotated to rotate with the rotating lever 24. The medicine in the infusion bag 1 enters the elastic rubber seat 15 in the first valve housing 6 through the discharge pipe 7, and the medicine in the elastic rubber seat 15 enters the first valve housing 6 through the slit 14. The medicine in the first valve housing 6 enters the connecting head 23 and flows out through the infusion pipe 4 for infusion. When the patient needs to add medicine during the infusion process, the threaded syringe is screwed to the second outer screw. On the threaded joint 11, the syringe head pushes the drug delivery barrel 19 to approach the first valve housing 6, and the drug delivery barrel 19 moves the compression spring 17 with the sliding ring 18, and the drug delivery hole 22 on the surface of the drug delivery barrel 19 separates from the sealing ring 16 and leaks out, and the drug solution is pushed out by the syringe into the drug delivery barrel 19 and flows out from the drug delivery hole 22 into the second valve housing 10, and the drug solution in the second valve housing 10 enters the interior of the first valve housing 6 and mixes with the drug solution flowing out of the infusion bag 1 and flows out, and the infusion set is unscrewed from the second external threaded joint 11, and the infusion set is pulled out. The spring 17 pushes the sliding ring 18 and the dosing tube 19 to reset under the action of the elastic force, so that the dosing hole 22 overlaps with the sealing ring 16 and is closed. The first valve housing 6 and the second valve housing 10 are used in conjunction to achieve needle-free connection for dosing, avoiding the need for the syringe needle to pierce the infusion bag when adding medicine into the infusion bag with a syringe, which is prone to needlestick injuries and increases pollution. When nurses give intravenous infusions to patients, the infusion set needs to pierce the infusion bottle stopper, which is also prone to needlestick injuries and increases technical problems such as infusion particles and pollution.

[0026] All technical features in this embodiment can be freely combined according to actual needs.

[0027] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. An infusion bag structure with a double needleless connector, the infusion bag structure comprising an infusion bag (1), characterized in that: A drainage tube (7) is installed through the interior of the infusion bag (1), and a first externally threaded joint (21) is installed at the bottom end of the drainage tube (7); a first valve housing (6) is arranged below the first externally threaded joint (21), and an internally threaded tube (5) is installed through the top end of the first valve housing (6); an elastic rubber seat (15) is arranged inside the first valve housing (6), the top end of the elastic rubber seat (15) is fixedly connected to the inner wall of the first valve housing (6), and a slit (14) is provided on the outer surface of the elastic rubber seat (15); a second valve housing (10) is installed through the outer surface of the first valve housing (6), and a second externally threaded joint (11) is installed through the end of the second valve housing (10) away from the first valve housing (6); a sealing ring (16) is installed on the inner wall of the second valve housing (10), and the inner wall of the second externally threaded joint (11) is provided with a sealing ring (16). A dosing tube (19) is slidably installed on the part, and the dosing tube (19) is slidably installed inside the sealing ring (16), a dosing hole (22) is opened on the outer surface of the dosing tube (19), a sliding ring (18) is fixedly connected to the outer surface of the dosing tube (19), a spring (17) is sleeved on the outside of the dosing tube (19), and the two ends of the spring (17) are respectively fixedly connected to the outer surfaces of the sealing ring (16) and the sliding ring (18), a sealing cover (12) is arranged below the infusion bag (1), a connecting head (23) is arranged below the first valve shell (6), and an infusion tube (4) is installed at the bottom end of the connecting head (23), a lifting head (3) is installed inside the connecting head (23), and a rotating lever (24) is installed at the bottom end of the connecting head (23), and a hook (8) is fixedly connected to the bottom end of the first valve shell (6).

2. The infusion bag structure with double needle-free connectors according to claim 1, characterized in that: A limiting groove (9) is provided at the bottom end of the elastic rubber seat (15).

3. The infusion bag structure with double needle-free connectors according to claim 2, characterized in that: The outer surface of the infusion bag (1) is fixedly connected to a folding piece (2), and the outer surface of the folding piece (2) is provided with a hanging hole.

4. The infusion bag structure with double needle-free connectors according to claim 3, characterized in that: A sealing column (13) is fixedly connected inside the sealing cover (12), and the sealing column (13) is made of rubber.

5. The infusion bag structure with double needle-free connectors according to claim 4, characterized in that: The outer surface of the medication barrel (19) is provided with a positioning groove (20).

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