Search

CN-122006017-A - Automatic drug delivery device, automatic drug delivery control method and control system

CN122006017ACN 122006017 ACN122006017 ACN 122006017ACN-122006017-A

Abstract

The invention provides an automatic drug delivery device, an automatic drug delivery control method and a control system, wherein the automatic drug delivery device comprises a host machine and an aseptic module, the aseptic module is connected to the host machine in a replaceable mode and comprises a trocar structure for achieving drug delivery, an aseptic drug chamber is used for communicating a card type bottle with a trocar for injection, a fixed shell is used for transversely installing the aseptic drug chamber and longitudinally installing the trocar structure, the host machine comprises a card type bottle mounting frame for installing the card type bottle, a push injection structure is arranged on the rear side of the card type bottle mounting frame and can drive the card type bottle to enter the aseptic drug chamber and then drive the card type bottle for drug delivery, a transmission structure is used for driving the trocar structure to automatically enter the needle and simultaneously driving the push injection structure to retract, the trocar structure is automatically separated after the trocar structure enters the needle in place and driving the power to drive the push injection structure to advance, and a driving motor is used for driving the transmission structure to act.

Inventors

  • WU DING
  • GUO RONG

Assignees

  • 上海新耀湃科医疗科技股份有限公司

Dates

Publication Date
20260512
Application Date
20260211

Claims (20)

  1. 1. An automatic drug delivery device is characterized by comprising a host machine (1) and an aseptic module (2), wherein the aseptic module (2) is connected to the host machine (1) in a replaceable way, The aseptic module (2) comprises A trocar structure (21) for accessing the subcutaneous for administration; a sterile medicine room (22) for communicating the cartridge (3) with the trocar for injection; a fixed housing (23) for transversely mounting the sterile drug chamber (22) and longitudinally mounting the trocar structure (21); The host (1) comprises A cartridge bottle mounting frame (12) coaxially provided with the aseptic medicine room (22) for mounting the cartridge bottle (3); the pushing injection structure (13) is arranged at the rear side of the clamping bottle mounting frame (12) and is provided with an idle stroke, so that the clamping bottle (3) can be driven to enter the sterile medicine room (22) and then the clamping bottle (3) is driven to administer medicine; The transmission structure (14) is used for driving the trocar structure (21) to automatically insert needles and driving the pushing structure (13) to retract at the same time, automatically separating the trocar structure (21) after the trocar structure (21) is inserted in place and driving the power to drive the pushing structure (13) to advance for pushing; And the driving motor (15) is used for driving the transmission structure (13) to act.
  2. 2. An automated drug delivery device according to claim 1, wherein the trocar structure (21) comprises a soft needle structure (212) and a steel needle structure (211), the steel needle (2111) of the steel needle structure (211) is arranged in the soft needle (2121) of the soft needle structure (212) in a penetrating way, the soft needle structure (212) is sleeved with a protective sleeve (213), the steel needle structure (211) and the soft needle structure (212) are arranged separately and can synchronously move downwards, a rack (214) which can be linked with the steel needle structure (211) and is longitudinally arranged is connected on the steel needle structure (211), and the rack (214) can be connected with the transmission structure (14) to be driven by the transmission structure.
  3. 3. An automated drug delivery device according to claim 2, wherein the fixed housing (23) is provided with a through hole for the trocar structure (21) to pass through, the two sides of the through hole are respectively provided with a bracket, the first bracket (231) is provided with a first track (236) for the rack (214) to move along the longitudinal direction, and the second bracket (232) is provided with a second track (235) for the soft needle structure (212) to move along the longitudinal direction.
  4. 4. An automated drug delivery device according to claim 3, wherein the first support (231) and the second support (232) are each provided with a first positioning portion (233) for positioning the flexible needle structure (212) after being moved down.
  5. 5. An automated drug delivery device according to claim 3, wherein the first bracket (231) is provided with a second positioning portion (234) for positioning the steel needle structure (211) after being moved up.
  6. 6. An automated drug delivery device according to claim 1, wherein the transmission structure (14) comprises a transmission shaft (145), a first gear (141), a second gear (142), a third gear (143) and a fourth gear (144), wherein the first gear (141) is connected to an output shaft of the driving motor (15), the second gear (142) and the fourth gear (144) are respectively arranged at two ends of the transmission shaft (145), the third gear (143) is arranged on the injection structure (13), the first gear (141), the second gear (142) and the third gear (143) are sequentially connected in a meshed manner, and the fourth gear (144) can be meshed with a rack (214) of the trocar structure (21).
  7. 7. The automated drug delivery device of claim 1, wherein the injection structure (13) comprises an injection outer barrel (131), a primary screw (132), a secondary screw (133), a limiting ring (134), a push plate (135) and a tooth holder (136), a third gear (143) is arranged on the tooth holder (136), the tooth holder (136) is arranged in the primary screw (132) and can be connected with the primary screw (132) in a synchronous rotating manner, the primary screw (132) is arranged in the injection outer barrel (131) and is in threaded connection with the injection outer barrel (131) and moves forward in a rotating manner under the limiting of the tooth holder (136), the secondary screw (133) is arranged in the tooth holder (136) and is in threaded connection with the primary screw (132) and moves forward in a rotating manner under the limiting of the limiting ring (134), the limiting ring (134) is positioned on the front side of the primary screw (132) and is pushed forward by the push plate (135) is arranged on the front side of the secondary screw (133).
  8. 8. The automated drug delivery device of claim 7, wherein the spacing ring (134) is engaged with the secondary screw (133) and the injection outer barrel (131), and the tooth holder (136) is engaged with the primary screw (132) by a groove rib.
  9. 9. An automated drug delivery device according to claim 1, wherein the host (1) comprises a housing (11), the cartridge bottle mounting frame (12), the push injection structure (13), the transmission structure (14) and the driving motor (15) are all arranged in the housing (11), the housing (11) can be clamped and connected with a fixed shell (23), and an observation window (16) is arranged on the housing (11) at the cartridge bottle mounting frame (12).
  10. 10. An automated drug delivery device according to claim 1, wherein a control board (18) and a power supply are installed in the housing (11), the control board (18) is connected with a driving motor (15) controlled by the control board, and the control board (18) and the driving motor (15) are connected with the power supply.
  11. 11. An automated drug delivery device according to claim 1, characterized in that the bottom of the housing (11) is provided with a patch (17).
  12. 12. An automatic drug administration control method comprises the following specific steps: s1, a driving motor (15) rotates reversely, a transmission structure (14) drives a trocar structure (21) to enter a needle, and meanwhile drives a push injection structure (13) to retract; s2, after the trocar structure (21) is inserted into place, the driving motor (15) rotates positively, the transmission structure (14) drives the trocar structure (21) to separate the steel needle (2111) from the soft needle (2121), the steel needle (2111) retreats, and meanwhile, the push injection structure (13) is driven to push the clip type bottle (3) to be inserted into the needle; s3, after the trocar structure (21) is separated in place, the transmission structure (14) is separated from the trocar structure (21), and the transmission structure (14) continuously drives the push injection structure (13) to advance to push the card bottle (3) to push injection for medicine; s4, after the drug administration is finished, the driving motor (15) stops.
  13. 13. An automated administration control method according to claim 12, wherein the bolus structure (13) in step S1 is provided with an idle stroke.
  14. 14. The method for automated drug delivery control of claim 13, wherein the step S1 comprises the steps of: s11, a driving motor (15) rotates reversely, a first gear (141) rotates reversely to drive a second gear (142) to rotate positively, a transmission shaft (145) rotates positively synchronously with a fourth gear (144), the fourth gear (144) drives a rack (214) to move downwards, and a steel needle structure (211) and a soft needle structure (212) move downwards to enter a needle synchronously; S12, the second gear (142) drives the third gear (143) to synchronously rotate reversely, the tooth seat (136) rotates to drive the primary screw (132) to rotate, and the secondary screw (133) rotates along with the primary screw to move back to retract under the action of the limiting ring (134) to eliminate idle stroke.
  15. 15. The method of claim 12, wherein the step S2 of inserting the needle is performed by sensing the needle by a sensor.
  16. 16. The method for automated drug delivery control of claim 12, wherein the step S2 comprises the steps of: S21, a driving motor (15) rotates positively, a first gear (141) rotates positively to drive a second gear (142) to rotate reversely, a transmission shaft (145) rotates reversely synchronously with a fourth gear (144), the fourth gear (144) drives a rack (214) to move upwards, a steel needle structure (211) moves upwards to retract, and a soft needle structure (212) is positioned and is not moved at the moment; S22, the second gear (142) drives the third gear (143) to synchronously rotate positively, the tooth holder (136) rotates to drive the first-stage screw rod (132) to rotate, the first-stage screw rod (132) moves forward under the cooperation of the push injection outer cylinder (131) and the tooth holder (136), and the second-stage screw rod (133) rotates along with the first-stage screw rod to move forward under the action of the limiting ring (134) to push the whole card bottle (3) to move into the needle.
  17. 17. The method for automated drug delivery control of claim 12, wherein the step S3 comprises the steps of: S31, the driving motor (15) continues to rotate positively, the steel needle structure (211) is positioned, and the fourth gear (144) is disconnected with the rack (214); S32, the second gear (142) continuously drives the third gear (143) to synchronously rotate forwards, the tooth holder (136) rotates to drive the first-stage screw rod (132) to rotate, the first-stage screw rod (133) moves forwards under the cooperation of the injection outer cylinder (131) and the tooth holder (136), and the second-stage screw rod (133) rotates along with the first-stage screw rod to move forwards under the action of the limiting ring (134) to push the piston of the card bottle (3) to inject medicine.
  18. 18. An automated administration control method as claimed in claim 12, wherein the rotational speeds of the drive motors (15) of steps S1 and S2 are the same.
  19. 19. An automated administration control method according to claim 18, wherein the rotational speed of the drive motor (15) of step S3 is substantially less than the rotational speeds of the drive motor (15) of steps S1 and S2.
  20. 20. The method of automated administration control as claimed in claim 12, wherein in step S4, whether the administration is completed is achieved by setting the bolus time.

Description

Automatic drug delivery device, automatic drug delivery control method and control system Technical Field The invention belongs to the technical field of drug delivery devices, and particularly relates to an automatic drug delivery device, an automatic drug delivery control method and a control system. Background Many patients currently need to accept subcutaneous administration for a long period of time, and the traditional mode depends on medical staff or complex operation. Similar products (e.g., WEST, BD OBDS syringes) are available on the market, but infusion is often achieved by extrusion for small dose formulations such as BD, or custom non-standard medical fluid containers are used, with very large diameters, so that the injection device can be miniaturized in the length direction, e.g., WEST. I.e. the existing syringes cannot support injection of larger doses, e.g. 1.2ml, and longer injection times, e.g. 5 minutes, while not being adapted to the requirements of a specific drug package. Disclosure of Invention Aiming at the problems in the background technical introduction, the invention aims to provide an automatic drug delivery device which can be used for self drug delivery at home, and has high safety, high reliability and controllable cost. The invention also provides an automatic drug administration control method and a control system, which can safely and reliably control the home self-administration of the automatic drug administration device. The technical scheme adopted by the invention is as follows: an automatic drug delivery device comprises a host machine and a sterile module, wherein the sterile module is connected to the host machine in a replaceable way, The aseptic module comprises A trocar structure for accessing the subcutaneous for administration; a sterile medicine room for communicating the card bottle with the trocar for injection; a stationary housing for transversely mounting the sterile drug chamber and longitudinally mounting the trocar structure; The host comprises The clamping type bottle mounting rack is coaxially arranged with the sterile medicine room and is used for mounting the clamping type bottle; The pushing injection structure is arranged at the rear side of the clamping bottle mounting frame and is provided with an idle stroke, so that the clamping bottle can be driven to enter the sterile medicine room to drive the clamping bottle to administer medicine; The transmission structure is used for driving the trocar structure to automatically insert the needle and driving the pushing structure to retract at the same time, automatically separating the trocar structure after the trocar structure is inserted into place and driving the pushing structure to advance for pushing; and the driving motor is used for driving the transmission structure to act. Further, the trocar structure comprises a soft needle structure and a steel needle structure, the steel needle of the steel needle structure is arranged in the soft needle of the soft needle structure in a penetrating mode, a protective sleeve is sleeved outside the soft needle structure, the steel needle structure and the soft needle structure are arranged in a separated mode and can move downwards synchronously, a rack which is arranged longitudinally and can be linked with the steel needle structure is connected to the steel needle structure, and the rack can be connected with a transmission structure to be driven to move by the rack. Further, be provided with the through-hole that supplies trocar structure to wear to establish on the fixed shell, the both sides of through-hole are equipped with the support respectively, and first support is equipped with rack along longitudinal movement's first track, and the second support is equipped with soft needle structure along longitudinal movement's second track. Further, the first support and the second support are respectively provided with a first positioning part for positioning the soft needle structure after moving downwards. Further, a second positioning part for positioning the steel needle after the steel needle structure is moved upwards is arranged on the first bracket. Further, the transmission structure comprises a transmission shaft, a first gear, a second gear, a third gear and a fourth gear, wherein the first gear is connected to an output shaft of the driving motor, the second gear and the fourth gear are respectively arranged at two ends of the transmission shaft, the third gear is arranged on the push injection structure, the first gear, the second gear and the third gear are sequentially connected in a meshed mode, and the fourth gear can be meshed with a rack of the trocar structure. Further, the structure of pushing away is including pushing away notes urceolus, one-level screw rod, second grade screw rod, spacing ring, push pedal, toothholder, be provided with the third gear on the toothholder, the toothholder is located in the one-level screw rod and