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CN-122006009-A - Anti-extravasation chemotherapy drug feeder for oncology

CN122006009ACN 122006009 ACN122006009 ACN 122006009ACN-122006009-A

Abstract

The invention relates to an anti-extravasation chemotherapy drug feeder for oncology, belonging to the field of medical instruments. The medicine bottle comprises a frame body and a medicine bottle, wherein a base and two mounting boxes are arranged below the medicine bottle, the two mounting boxes are in sliding connection with the base, an annular frame is arranged above the base, a fixing plate is fixedly connected between the annular frame and the base, and a positioning mechanism is arranged on the annular frame. According to the invention, through arranging the drug delivery mechanism, uniform and stable delivery of the chemical treatment liquid medicine can be realized, the driving shaft rotates to drive the first movable block on the inner wall of the movable ring to move in the guide groove, the first movable block can drive the movable ring to slowly move along the axial direction of the driving shaft under the action of the spiral groove, meanwhile, the first spring is compressed, and when the first movable block enters the strip-shaped groove from the spiral groove, the movable ring is quickly reset under the action of the elastic restoring force of the first spring, and the circulation is realized, so that the movable ring generates axial reciprocating motion, and the slow advance and the slow retreat of the extrusion wheel are realized.

Inventors

  • HUA JING
  • BIAN LI

Assignees

  • 无锡市第二人民医院

Dates

Publication Date
20260512
Application Date
20260326

Claims (10)

  1. 1. The anti-extravasation chemotherapy drug feeder for the oncology is characterized by comprising a frame body (1) and a drug bottle (2), wherein a base (3) and two mounting boxes (4) are arranged below the drug bottle (2), the two mounting boxes (4) are both in sliding connection with the base (3), an annular frame (5) is arranged above the base (3), and a fixing plate (6) is fixedly connected between the annular frame (5) and the base (3); The annular frame (5) is provided with a positioning mechanism which is used for positioning the base (3) on the medicine bottle (2), and the positioning mechanism comprises a driving disc (7), a plurality of moving blocks (14) and a clamping plate (15); be equipped with in mounting box (4) and give medicine to the mechanism, it is used for evenly delivering medicine steadily to give medicine to the mechanism, it includes drive shaft (11), expansion ring (20), mount pad (36), extrusion wheel (38) and two first springs (31) to give medicine to the mechanism, the guide way has been seted up on the outer wall of drive shaft (11), the guide way includes bar groove (18) and helicla flute (19), and end to end between bar groove (18) and the helicla flute (19).
  2. 2. The anti-extravasation chemotherapy drug delivery device for oncology according to claim 1, wherein a chute (9) is formed at the top of the installation box (4), two connecting columns (16) are fixedly connected to the bottom of the annular frame (5), a sliding block (17) is fixedly connected to the bottom of the connecting columns (16), and the sliding block (17) is slidably connected in the chute (9).
  3. 3. The anti-extravasation chemotherapy drug feeder for oncology according to claim 2, wherein the driving disc (7) is rotationally connected in the annular frame (5), a swivel (8) is rotationally connected on the outer wall of the annular frame (5), the swivel (8) is fixedly connected with the driving disc (7), the moving block (14) is slidably connected with the annular frame (5), the clamping plate (15) is fixedly connected with the moving block (14), and the bottom of the moving block (14) is movably embedded on the driving disc (7).
  4. 4. The anti-extravasation chemotherapy drug feeder for oncology according to claim 1, wherein the driving shaft (11) is rotatably connected in the mounting box (4), the movable ring (20) is sleeved on the driving shaft (11), a first movable block (22) is fixedly connected on the inner wall of the movable ring (20), the first movable block (22) is movably connected in the guide groove, and a mounting rod (23) and two convex blocks (21) are fixedly connected on the outer wall of the movable ring (20).
  5. 5. The anti-extravasation chemotherapy drug delivery device for oncology according to claim 4, wherein two connecting plates (13) and a first round rod (30) are fixedly connected in the mounting box (4), the first round rod (30) penetrates through the protruding block (21) in a sliding mode, the first spring (31) is sleeved on the first round rod (30), and two ends of the first spring (31) are fixedly connected with the protruding block (21) and the inner wall of the mounting box (4) respectively.
  6. 6. The anti-extravasation chemotherapy drug feeder for oncology according to claim 5, wherein the extrusion wheel (38) is rotationally connected to one side of the mounting seat (36), a circular plate (35) is fixedly connected to the other side of the mounting seat (36), a connecting rod (33) is fixedly connected to the circular plate (35), the connecting rod (33) is slidably connected with the mounting rod (23), a second spring (34) is sleeved on the connecting rod (33), and two ends of the second spring (34) are fixedly connected with the circular plate (35) and the mounting rod (23) respectively.
  7. 7. The anti-extravasation chemotherapy drug delivery device for oncology according to claim 6, wherein two second movable blocks (37) are fixedly connected to the mounting base (36), a guide frame (28) is fixedly connected to the connecting plate (13), a movable groove (29) is formed in the guide frame (28), the second movable blocks (37) are movably connected to the movable groove (29), and a baffle (32) is rotationally connected to the movable groove (29).
  8. 8. The anti-extravasation chemotherapy drug feeder for oncology according to claim 1, wherein the end part of the driving shaft (11) is fixedly connected with a first gear (24), a third gear (27) and two second gears (25) are rotationally connected with the base (3), the two second gears (25) are meshed with each other, and a belt wheel set (26) is connected between the second gears (25) and the third gears (27).
  9. 9. The anti-extravasation chemotherapy drug delivery device for oncology according to claim 8, wherein a motor is fixedly connected in the base (3), and an output end of the motor is coaxially fixed with the second gear (25).
  10. 10. The anti-extravasation chemotherapy drug feeder for oncology according to claim 1, wherein the base (3) is symmetrically provided with a mounting groove (12) and a connecting groove, a limiting block (10) is connected in the connecting groove in a sliding manner, an elastic sheet (39) is symmetrically fixed at the bottom of the limiting block (10), the elastic sheet (39) is fixedly connected in the connecting groove, a second round rod (41) is fixedly connected in the mounting groove (12), a third spring (42) is sleeved on the second round rod (41), a movable plate (40) is fixedly connected on the mounting box (4), the movable plate (40) is connected in the mounting groove (12) in a sliding manner, and two ends of the third spring (42) are fixedly connected with the movable plate (40) and the inner wall of the mounting groove (12) respectively.

Description

Anti-extravasation chemotherapy drug feeder for oncology Technical Field The invention relates to the technical field of medical equipment, in particular to an anti-extravasation chemotherapy drug feeder for oncology. Background ‌ Chemotherapy is a systemic treatment method for killing or inhibiting cancer cells by using chemical medicines, mainly adopts intravenous injection, oral administration and other modes to administer, is widely applied to radical treatment, auxiliary treatment or palliative treatment of malignant tumors, and is characterized in that a plurality of chemotherapy medicines have strong irritation or corrosiveness, if the medicines are infused through common veins, vascular injury, local tissue necrosis and skin ulcer are easily caused, and the anti-extravasation administration device directly conveys the medicines to central veins to prevent the medicines from passing through fragile peripheral veins, so that the extravasation and related complications are effectively prevented, and the anti-extravasation administration device which is clinically used at present mainly comprises a central vein catheter, an infusion port and a venous indwelling needle, and is implanted in the neck or body of a patient during chemotherapy, and the chemotherapy medicine is connected with the administration device and directly conveyed into the central veins ‌ ‌ with larger blood flow. Through investigation, chinese patent application discloses an anti-extravasation chemotherapy drug feeder (publication number: CN 118718163B) for oncology, which comprises a placement frame and a drug bottle, wherein the lower end of the drug bottle is provided with a transmission mechanism for transmitting injection drugs into a patient, the transmission mechanism comprises a transmission pipe, the lower end of the transmission pipe is fixedly provided with a temporary storage barrel, the lower end of the temporary storage barrel is fixedly provided with a transfusion pipe, and the lower end of the transfusion pipe is fixedly provided with an injection head. The above patent is through setting up the air input that the liquid level in the temporary barrel risees the control circle to this reduces the injection velocity of liquid medicine, make the device of dosing can be according to patient's venous pressure size automatically regulated injection liquid medicine's speed size avoid the patient to appear the extravasation, but patient's daily activities like rising walking, the action of raising one's hand even cough, standing up etc. can all directly change local venous pressure state, the chemotherapeutics generally has stronger cytotoxicity and pungency, quick infusion can cause vascular pain, red swelling, even liquid medicine extravasation leads to local tissue necrosis, and the velocity of flow is too slow then can prolong the treatment time, increase patient's physical and mental burden, for the uncomfortable and risk of furthest reduction patient, the chemotherapy is dosed and is had to rely on accurate infusion equipment, through mechanical power steady control liquid medicine velocity, ensure that the medicine is in the blood vessel with at uniform velocity, continuous mode injection, guarantee treatment effect promotes patient's tolerance and comfort level simultaneously. Thus, the application provides an anti-extravasation chemotherapy drug delivery device for oncology department to meet the requirements. Disclosure of Invention The invention aims to solve the technical problem of providing an anti-extravasation chemotherapy drug feeder for oncology, which aims to solve the problem that the flow rate of chemotherapy liquid medicine is not stable enough at a constant speed. In order to solve the technical problems, the invention provides the following technical scheme: The anti-extravasation chemotherapy drug feeder for the oncology comprises a frame body and a drug bottle, wherein a base and two mounting boxes are arranged below the drug bottle, the two mounting boxes are in sliding connection with the base, an annular frame is arranged above the base, a fixing plate is fixedly connected between the annular frame and the base, a positioning mechanism is arranged on the annular frame and used for positioning the base on the drug bottle, the positioning mechanism comprises a driving disc, a plurality of moving blocks and a clamping plate, a drug feeding mechanism is arranged in the mounting boxes and used for uniformly and stably feeding drugs, the drug feeding mechanism comprises a driving shaft, a movable ring, a mounting seat, an extrusion wheel and two first springs, a guide groove is formed in the outer wall of the driving shaft, the guide groove comprises a strip groove and a spiral groove, and the strip groove is connected with the spiral groove in an end-to-end mode. Optionally, the spout has been seted up at the top of installation box, two spliced poles of bottom fixedly connected with of annular frame,