CN220801070U - Automatic drug delivery device for drug-carrying microspheres - Google Patents
Automatic drug delivery device for drug-carrying microspheres Download PDFInfo
- Publication number
- CN220801070U CN220801070U CN202322112615.0U CN202322112615U CN220801070U CN 220801070 U CN220801070 U CN 220801070U CN 202322112615 U CN202322112615 U CN 202322112615U CN 220801070 U CN220801070 U CN 220801070U
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- block
- drug
- casing
- fixed block
- screw rod
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- 239000004005 microsphere Substances 0.000 title claims abstract description 23
- 238000012377 drug delivery Methods 0.000 title claims abstract description 14
- 239000003814 drug Substances 0.000 claims abstract description 32
- 229940079593 drug Drugs 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000001125 extrusion Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 230000009471 action Effects 0.000 description 5
- 206010028980 Neoplasm Diseases 0.000 description 3
- 230000036770 blood supply Effects 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002440 hepatic effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 230000010109 chemoembolization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 210000004881 tumor cell Anatomy 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an automatic drug delivery device for drug-carrying microspheres, which comprises a shell, wherein a connecting shaft is fixedly arranged on one side of the surface of the shell, a friction transmission mechanism for transmitting power is arranged in the shell, the friction transmission mechanism comprises a fixed block, a screw rod, a friction ring and a spring, the middle part of the inner side of the shell is movably provided with the fixed block through a rotating shaft, the screw rod is fixedly arranged in the middle part of the outer surface of the fixed block so as to drive the screw rod to rotate together when the fixed block rotates, and the upper end and the lower end of the inner side of the shell are fixedly provided with the friction ring through sliding grooves in a movable clamping way so that the friction ring can only move up and down in the shell and cannot rotate relative to the shell. The utility model has good use effect, can replace doctors to inject medicines, has more uniform and convenient medicine injection process compared with manual operation, and can block power transmission in time when abnormal rotation speed occurs, thereby preventing a large amount of medicines from being input at one time.
Description
Technical Field
The utility model relates to the technical field of drug delivery devices, in particular to an automatic drug delivery device for drug-carrying microspheres.
Background
Drug-loaded microspheres have become one of the important therapeutic modalities for treating hepatic malignant tumors by hepatic arterial chemoembolization. The method for preparing the carrier microsphere is numerous, the optimal method is generally selected according to the properties of the carrier material and the drug, and the conventional microsphere preparation method comprises an emulsification-solvent evaporation method, a phase separation method, a spray drying method, a membrane emulsification method and the like. In addition, there are many new methods such as salting out, high pressure homogenization, new technologies such as nanotechnology, microfluidic technology, supercritical fluid technology, and the like.
In any method, after the preparation of the drug-loaded microsphere is finished, the injection needle tube is generally required to be connected with the microcatheter, then the microcatheter is inserted into a target blood vessel, namely a blood supply vessel of a tumor, the drug-loaded microsphere is injected into the blood supply vessel to block the blood supply of the tumor, and meanwhile, the drug is utilized to kill tumor cells so as to play a role in quality tumor, but in the prior art, a doctor is generally utilized to insert the microcatheter, then the doctor is utilized to control the injection work of the injection needle tube, and the automatic drug-loaded microsphere drug-feeding device is driven by a motor to drive a screw rod to automatically feed drugs when in use according to the Chinese patent application number 202022266608.2, so that manual operation of the doctor is replaced, but the device is a mechanical device after all, faults and misoperation exist, if the rotating speed of the motor is too high due to the faults or misoperation, the drug feeding per unit time is too much, the damage to a patient is easy to cause, and a redundant protection structure is ensured, so the automatic drug-loaded microsphere drug-feeding device is required to be improved.
Disclosure of utility model
The utility model aims to provide an automatic drug delivery device for drug-carrying microspheres, which solves the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an automatic device of dosing of medicine-carrying microsphere, includes the casing, casing surface one side is fixed to be provided with the connecting axle, the inside friction drive mechanism that is provided with transmission power of casing, friction drive mechanism includes fixed block, screw rod, friction ring, spring, the inboard middle part of casing is provided with the fixed block through pivot activity me, because connect through the pivot, under the effect that does not have any other external force when the casing rotates, the casing can not drive the fixed block and rotate in the lump, fixed surface middle part is fixedly provided with the screw rod for can drive the screw rod and rotate in the lump when making the fixed block rotate, the inside upper end of casing is provided with fixedly through spout movable block with the friction ring, so that the friction ring can only reciprocate and can not take place relative rotation with the casing between the needle tubing, be provided with the spring between the friction ring, screw rod outside surface is provided with the movable block, movable block surface one side is provided with the injection.
Preferably, the moving block is connected with the screw rod through screw threads in a screwing way, and the moving block can be driven to move through the screw threads when the screw rod rotates.
Preferably, the fixed block outside surface is fixedly provided with the guide rod, the movable block movable sleeve is arranged on the guide rod outside surface, and the guide rod can conveniently play a guide role, so that the movable block can move along the guide rod and cannot rotate together when the screw rod rotates.
Preferably, one end of the connecting shaft is provided with a motor, an output shaft end of the motor is connected with the connecting shaft through a transmission, a balancing weight is arranged on the outer side surface of the friction ring, and the friction plate can be thrown out to the periphery by utilizing centrifugal force when the friction ring and the shell rotate at a high speed and the rotating speed reaches a threshold value through the balancing weight.
Preferably, the movable block is provided with a connecting rod on the outgoing surface, one end of the connecting rod, which is far away from the movable block, is fixedly provided with an extrusion block, the movable block moves, and the extrusion block is pushed to push the injection needle tube so as to extrude the medicine inside the injection needle tube for injection.
Preferably, a microcatheter is provided at the end of the injection needle distal from the extrusion block, by which the drug can be injected into the patient's blood vessel.
Compared with the prior art, the utility model has the beneficial effects that:
1. when the equipment fails or is in misoperation, the rotating speed of the whole motor is too high and reaches the threshold value, the friction ring is subjected to larger centrifugal force due to the matching of the action of the balancing weight with the higher rotating speed, so that the friction plate is thrown out to the periphery by the centrifugal force, and can be separated from the fixed block, the fixed block is not driven to rotate together when the shell rotates, the injection needle tube can be stopped from being extruded, a large amount of medicine can be prevented from being input at one time, and the safety of the device in use is improved.
2. The utility model replaces doctors to inject medicines, and the medicine injection process is more uniform and convenient compared with manual work.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an automatic drug delivery device for drug-loaded microspheres according to the present utility model;
FIG. 2 is a side view of an automated drug delivery device for drug-loaded microspheres according to the present utility model;
Fig. 3 is a view showing the internal structure of a housing of an automatic drug delivery device for drug-loaded microspheres according to the present utility model.
In the figure: 1. a housing; 2. a connecting shaft; 3. a fixed block; 4. a screw; 5. a friction ring; 6. a spring; 7. a moving block; 8. an injection needle tube; 9. a guide rod; 10. a motor; 11. a connecting rod; 12. extruding a block; 13. microcatheter.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides an automatic device of dosing of medicine-carrying microsphere, includes casing 1, casing 1 surface one side is fixed to be provided with connecting axle 2, the inside friction drive mechanism that is provided with transmission power of casing 1, friction drive mechanism includes fixed block 3, screw rod 4, friction ring 5, spring 6, casing 1 inboard middle part is provided with fixed block 3 through pivot activity me, because connect through the pivot, under the effect of not having any other external force when casing 1 rotates, casing 1 can not drive fixed block 3 and rotate in the lump, fixed screw rod 4 that is provided with in fixed surface middle part in fixed block 3 outside surface to can drive screw rod 4 and rotate in lump when making fixed block 3 rotate, casing 1 inside upper end and lower extreme are provided with fixed friction ring 5 through spout activity block, so that friction ring 5 can only reciprocate and can not take place relative rotation with casing 1 between the inside the friction ring 5, be provided with spring 6 between the friction ring 5, screw rod 4 outside surface is provided with movable block 7, movable block 7 surface one side is provided with needle tubing 8.
The movable block 7 is connected with the screw 4 through screw thread screwing, the movable block 7 can be driven to move by the screw thread when the screw 4 rotates through the screw thread, the guide rod 9 is fixedly arranged on the outer side surface of the fixed block 3, the movable block 7 is movably sleeved on the outer side surface of the guide rod 9, the guide rod 9 can conveniently play a guide role, and the movable block 7 can move along the guide rod 9 but cannot rotate together when the screw 4 rotates; the device is characterized in that one end of the connecting shaft 2 is provided with a motor 10, the output shaft end of the motor 10 is in transmission connection with the connecting shaft 2 through a coupler, the outer side surface of the friction ring 5 is provided with a balancing weight, the friction plate can be thrown out to the periphery by utilizing centrifugal force when the friction ring 5 and the shell 1 rotate at high speed and the rotating speed reaches a threshold value through the balancing weight, the outgoing surface of the moving block 7 is fixedly provided with a connecting rod 11, one end of the connecting rod 11 far away from the moving block 7 is fixedly provided with an extrusion block 12, the extrusion block 7 is used for moving, and the extrusion block 12 is pushed so as to push an injection needle tube to extrude medicines in the injection needle tube for injection; the injection needle tube is provided with a micro-catheter 13 at one end far away from the extrusion block 12, and can be inserted into a blood vessel of a patient by using the micro-catheter 13, so that medicines can be injected into a designated position.
Working principle: when the device is used, the shell 1 can be driven to rotate through the motor 10, if the rotating speed of the shell 1 is slower, the friction ring 5 can be used for clamping the fixed block 3 to drive the fixed block 3 to rotate together, the screw 4 can be driven to rotate, the moving block 7 can be driven to rotate through threads when the screw 4 rotates, so that the extrusion block 12 can be finally pushed to extrude the injection needle tube to extrude the medicine in the injection needle tube for injection work, a doctor can be replaced to perform injection of the medicine, the medicine injection process can be more uniform and convenient relative to manual work, when the device fails or is in misoperation, the rotating speed of the whole motor 10 is too fast and reaches a threshold value, the friction ring 5 can be subjected to larger centrifugal force due to the action of the balancing weight and the higher rotating speed, so that the friction plate is thrown out to the periphery of the needle tube can be separated from the fixed block 3 by utilizing the centrifugal force, the shell 1 can not drive the fixed block 3 to rotate together when rotating, extrusion injection can be stopped, and a large amount of medicine can be prevented from being input at one time, and the safety of the device is improved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an automatic dosing device of medicine microsphere that carries, includes casing (1), its characterized in that: the utility model discloses a syringe, including casing (1), fixed connection axle (2) that is provided with in casing (1) surface one side, the inside friction drive mechanism that is provided with transmission power of casing (1), friction drive mechanism includes fixed block (3), screw rod (4), friction ring (5), spring (6), the inboard middle part of casing (1) is provided with fixed block (3) through pivot activity me, fixed screw rod (4) that are provided with in the middle part of the outside surface of fixed block (3) to can drive screw rod (4) and rotate in the lump when making fixed block (3) rotate, casing (1) inside upper end and lower extreme are provided with fixed friction ring (5) through spout activity block, so that friction ring (5) can only reciprocate and can not take place relative rotation with casing (1) between friction ring (5), screw rod (4) outside surface is provided with movable block (7), movable block (7) surface one side is provided with syringe (8).
2. An automatic drug delivery device for drug-loaded microspheres according to claim 1, wherein: the moving block (7) is connected with the screw rod (4) through screw thread screwing.
3. An automatic drug delivery device for drug-loaded microspheres according to claim 1, wherein: the guide rod (9) is fixedly arranged on the outer side surface of the fixed block (3), and the movable block (7) is movably sleeved on the outer side surface of the guide rod (9).
4. An automatic drug delivery device for drug-loaded microspheres according to claim 1, wherein: one end of the connecting shaft (2) is provided with a motor (10), the output shaft end of the motor (10) is in transmission connection with the connecting shaft (2) through a coupler, and the outer side surface of the friction ring (5) is provided with a balancing weight.
5. An automatic drug delivery device for drug-loaded microspheres according to claim 1, wherein: the movable block (7) is fixedly provided with a connecting rod (11) on the outgoing surface, and one end, far away from the movable block (7), of the connecting rod (11) is fixedly provided with an extrusion block (12).
6. An automatic drug delivery device for drug-loaded microspheres according to claim 1, wherein: and a microcatheter (13) is arranged at one end of the injection needle tube (8) far away from the extrusion block (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322112615.0U CN220801070U (en) | 2023-08-08 | 2023-08-08 | Automatic drug delivery device for drug-carrying microspheres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322112615.0U CN220801070U (en) | 2023-08-08 | 2023-08-08 | Automatic drug delivery device for drug-carrying microspheres |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220801070U true CN220801070U (en) | 2024-04-19 |
Family
ID=90679552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322112615.0U Active CN220801070U (en) | 2023-08-08 | 2023-08-08 | Automatic drug delivery device for drug-carrying microspheres |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220801070U (en) |
-
2023
- 2023-08-08 CN CN202322112615.0U patent/CN220801070U/en active Active
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