CN113018580B - Medicine feeding mechanism and insulin pump - Google Patents
Medicine feeding mechanism and insulin pump Download PDFInfo
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- CN113018580B CN113018580B CN202110314298.3A CN202110314298A CN113018580B CN 113018580 B CN113018580 B CN 113018580B CN 202110314298 A CN202110314298 A CN 202110314298A CN 113018580 B CN113018580 B CN 113018580B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14212—Pumping with an aspiration and an expulsion action
- A61M5/14216—Reciprocating piston type
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14212—Pumping with an aspiration and an expulsion action
- A61M5/1424—Manually operated pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14244—Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
- A61M5/14248—Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body of the skin patch type
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3129—Syringe barrels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31545—Setting modes for dosing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the technical field of insulin pumps, in particular to a medicine feeding mechanism and an insulin pump. The infusion device comprises a medicine feeding roller and a hose abutting seat, wherein the medicine feeding roller and the hose abutting seat are matched with an infusion hose in a matching manner; the medicine feeding roller comprises a rotatable roller body, and a plurality of extrusion wheels are uniformly arranged on the periphery of the roller body in a rotatable manner; the hose supports and presses seat department to form and is used for with advance medicine gyro wheel periphery complex bayonet portion, bayonet portion and advance between the medicine gyro wheel and form the even clearance that is used for setting up the infusion hose. The invention can better realize the medicine feeding function.
Description
Technical Field
The invention relates to the technical field of insulin pumps, in particular to a medicine feeding mechanism and an insulin pump.
Background
Diabetes is still an incomplete cure until now, but is a chronic disease that can be conditioned, and if the conditioning fails, various complications are easily caused, even dangerous chronic diseases that ultimately lead to loss of life.
Can imitate human insulin secretion law through adopting the insulin pump better, and then can reach the effect of preferred in the aspect of controlling blood sugar. The existing insulin pump generally comprises a push rod mechanism and a drug storage mechanism, wherein the push rod mechanism is used for transmitting the power of a motor, and linear motion of a piston at the drug storage mechanism is realized by adopting a spiral propelling mode, so that automatic injection of insulin is realized.
The existing insulin pump has the following problems:
1. the original purpose of the design is to facilitate the carrying of the patient, however, the push rod mechanism is driven by the motor, so the situation that the patient cannot work when the electric quantity is insufficient exists;
2. its push rod mechanism adopts screw propulsion's mode to work, so need reserve sufficient movement space and realize its function, and this external size that just needs to increase insulin pump, and then portable not, and can restrict the reserve medicine volume of storing up medicine mechanism, and this will increase the patient because of the misery that the change of liquid medicine brought.
Disclosure of Invention
The present invention provides a drug delivery mechanism that overcomes some or all of the disadvantages of the prior art.
The medicine feeding mechanism comprises a medicine feeding roller and a hose abutting seat, wherein the medicine feeding roller and the hose abutting seat are matched with an infusion hose in a matched manner; the medicine feeding roller comprises a rotatable roller body, and a plurality of extrusion wheels are uniformly arranged on the periphery of the roller body in a rotatable manner; a bayonet part matched with the periphery of the medicine feeding roller is formed at the position of the hose abutting seat, and a uniform gap for arranging the infusion hose is formed between the bayonet part and the medicine feeding roller;
the medicine storage mechanism comprises a medicine storage barrel, a medicine storage cavity is formed in the medicine storage barrel, and the medicine storage cavity is used for storing medicine liquid; a hose connecting part for connecting a transfusion hose is formed at one end of the medicine storage barrel, and an opening is formed at the other end of the medicine storage cavity; a piston is arranged in the medicine storage cavity and used for sealing the medicine storage cavity;
the first positioning flange, the second positioning flange and the third positioning flange are arranged on the periphery of the medicine storage cylinder at intervals and are axially distributed along the medicine storage cylinder;
a first positioning blind hole, a second positioning blind hole and a third positioning blind hole are respectively arranged in the first positioning flange, the second positioning flange and the third positioning flange, the openings of the first positioning blind hole and the second positioning blind hole face to one end of the cartridge case, and the opening of the third positioning blind hole faces to the other end of the cartridge case; a first positioning rod, a second positioning rod and a third positioning rod are slidably arranged in the first positioning blind hole, the second positioning blind hole and the third positioning blind hole respectively;
a stepped hole is formed at the other end of the medicine storage barrel, the lengths of the first positioning rod and the second positioning rod are not lower than the inner diameter of the medicine storage cavity and not higher than the inner diameter of the stepped hole, and the length of the third positioning rod is larger than the depth of the medicine storage cavity; the middle parts of the first positioning rod and the second positioning rod are respectively provided with a first matching hole and a second matching hole which are used for matching with the third positioning rod.
According to the invention, the medicine feeding roller and the hose pressing seat are arranged to be matched with the infusion hose, the infusion hose is arranged between the medicine feeding roller and the hose pressing seat, and the medicine liquid in the infusion hose can be pushed to move forward through the extrusion wheel by the rolling of the medicine feeding roller, so that the medicine feeding function can be realized better. Through this, can promote the inner space utilization of the pump body better, so can be convenient for increase the storage capacity of liquid medicine better, so convenient to use.
Preferably, a squeezing wheel mounting groove is formed at an outer side surface of the roller body, and the squeezing wheel is mounted in the squeezing wheel mounting groove through a squeezing wheel mounting shaft. So that the installation of the pressing wheel can be preferably facilitated.
Preferably, the clamping opening part is provided with a hose installation groove, and the width of the hose installation groove is basically the same as the thickness of the extrusion wheel. Therefore, the transfusion hose can be better arranged in the hose mounting groove, and the transfusion hose can be effectively positioned.
Preferably, the hose supports and presses seat guide holes all to be equipped with in bottom both sides department and supports and press the seat guide hole and be used for with support and press the seat guide bar cooperation, support and press seat guide bar department and be equipped with and support and press a seat pressure spring, support and press a seat pressure spring and be used for keeping the hose and support and press the trend that the seat supported and press the medicine inlet gyro wheel. Through the structure, the gap between the hose abutting seat and the medicine feeding roller can be preferably adjusted, so that the installation and the disassembly of the infusion hose can be preferably facilitated.
Preferably, the bottom of the hose abutting seat is provided with an abutting seat limiting through hole, the abutting seat limiting through hole is used for being in sliding fit with the abutting seat limiting screw, and an abutting seat limiting nut is arranged at the abutting seat limiting screw. Through the cooperation of the limiting nut of the abutting seat and the limiting screw of the abutting seat, the hose abutting seat can be positioned better, and therefore the poor fit between the medicine feeding roller and the hose abutting seat caused by the displacement of the hose abutting seat can be effectively prevented.
The invention also provides an insulin pump which comprises any one of the medicine feeding mechanisms. Therefore, the use is convenient.
Drawings
FIG. 1 is a schematic view of the structure of a feed roller in example 1;
FIG. 2 is a schematic structural view of the hose pressing base in embodiment 1;
fig. 3 is a schematic view of the pump body in embodiment 1;
FIG. 4 is a schematic view of a medicine-feeding mechanism in example 1;
fig. 5 is an exploded schematic view of the drug storage mechanism of example 1;
FIG. 6 is an exploded view from another perspective of the drug storage mechanism of example 1;
fig. 7 is a schematic view of the syringe assembled with the medicine storage mechanism in example 1.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention and not limiting.
Example 1
Referring to fig. 1, the medicine feeding mechanism of the present embodiment includes a medicine feeding roller 1010 and a hose pressing seat 1020, wherein the medicine feeding roller 1010 and the hose pressing seat 1020 are used for cooperatively matching with an infusion hose; the medicine feeding roller 1010 comprises a rotatable roller main body 1110, and a plurality of squeezing wheels 1120 are uniformly arranged on the periphery of the roller main body 1110 in a rotatable manner; a bayonet part 1210 matched with the periphery of the medicine feeding roller 1010 is formed at the hose pressing seat 1020, and a uniform gap for arranging the transfusion hose is formed between the bayonet part 1210 and the medicine feeding roller 1010.
In this embodiment, the medicine feeding roller 1010 and the hose pressing seat 1020 are arranged to be preferably matched with the infusion hose, and the infusion hose is arranged between the medicine feeding roller 1010 and the hose pressing seat 1020, so that the medicine liquid in the infusion hose can be preferably pushed to advance by the extrusion wheel 1120 by rolling of the medicine feeding roller 1010, and thus the medicine feeding function can be preferably realized. By doing so, the utilization rate of the internal space of the pump body 100 can be preferably improved, so that the storage capacity of the liquid medicine can be preferably increased, and the use is facilitated.
Referring to fig. 1, a squeezing wheel mounting groove 1111 is formed at an outer side surface of the roller body 1110, and the squeezing wheel 1120 is mounted in the squeezing wheel mounting groove 1111 through a squeezing wheel mounting shaft 1112. So that the installation of the pressing wheel 1120 can be preferably facilitated.
Referring to fig. 2, a hose installation groove 1211 is formed at the bayonet portion 1210, and a width of the hose installation groove 1211 is substantially the same as a thickness of the pressing wheel 1120. So that the infusion hose can be preferably disposed in the hose mounting groove 1211, thereby effectively positioning the infusion hose.
In this embodiment, the hose abutting seat 1020 has abutting seat guide holes 1212 at both sides of the bottom thereof, the abutting seat guide holes 1212 are used for cooperating with the abutting seat guide rods 1030, and the abutting seat guide rods 1030 have abutting seat compression springs for maintaining the tendency of the hose abutting seat 1020 abutting against the medicine feeding roller 1010. By this, the gap between the hose pressing seat 1020 and the medicine inlet roller 1010 can be preferably adjusted, so that the installation and the removal of the infusion hose can be preferably facilitated.
In this embodiment, the bottom of the hose abutting seat 1020 is provided with an abutting seat limiting through hole 1213, the abutting seat limiting through hole 1213 is used for slidably fitting with the abutting seat limiting screw 1040, and the abutting seat limiting screw 1040 is provided with an abutting seat limiting nut. Through the cooperation of the limiting nut of the pressing seat and the limiting screw 1040 of the pressing seat, the hose pressing seat 1020 can be better positioned, so that the poor cooperation between the medicine feeding roller 1010 and the hose pressing seat 1020 caused by the displacement of the hose pressing seat 1020 can be effectively prevented.
In this embodiment, the medicine feeding roller 1010 and the hose pressing base 1020 are both disposed in the fourth cavity 224, the medicine feeding roller 1010 can be driven by the output shaft 417, and the pressing base guide rod 1030 and the pressing base limit screw 1040 are both disposed on the bottom wall of the fourth cavity 224.
In this embodiment, through setting up independent medicine feed mechanism, can replace the screw propulsion mechanism in the existing insulin pump better, so can promote the space utilization in the pump body inside better to can reduce the pump body size effectively and can be convenient for promote the liquid medicine memory space of storing up medicine mechanism department better, thereby can reduce the patient and can carry by the preferred misery that brings because of changing dressings and can be portable better.
Example 2
As shown in fig. 3 and 4, the present embodiment provides an insulin pump having the medicine-feeding mechanism of embodiment 1.
An insulin pump in the present embodiment comprises a pump body 100, the pump body 100 comprises an upper shell 110, a lower shell 120 and a cover plate 130; a fourth cavity 224 is arranged between the upper shell 110 and the lower shell 120, and the medicine feeding mechanism 250 is arranged in the fourth cavity 224; in addition, a medicine storage mechanism matched with the medicine feeding mechanism 250 is further arranged in the fourth cavity 224, and the medicine feeding mechanism 250 is used for injecting the medicine liquid stored in the medicine storage mechanism into the human body.
In this embodiment, the liquid medicine in the medicine storage mechanism is led out through the infusion tube, and the upper housing 110 and the lower housing 120 are formed with tube through holes 140 for leading out the infusion tube.
In this embodiment, the medicine storage mechanism and the medicine feeding mechanism 250 are disposed at the independently disposed fourth cavity 224, and since the medicine liquid stored in the medicine storage mechanism needs to be injected into the human body, the risk of contamination of the medicine liquid in the medicine storage mechanism can be preferably reduced.
In this embodiment, the fourth chamber 224 forms an opening for detachably engaging with the cover 130, so that the liquid medicine in the medicine storage mechanism can be conveniently replaced.
Referring to fig. 5, 6 and 7, the medicine storage mechanism includes a medicine storage cylinder 1310, a medicine storage cavity 1410 is formed inside the medicine storage cylinder 1310, and the medicine storage cavity 1410 is used for storing medicine liquid; a cartridge 1310 having a hose connection part 1311 formed at one end thereof for connecting an infusion hose, and a drug storage chamber 1410 formed at the other end of the cartridge 1310 to be opened; a piston 1320 is arranged in the medicine storage cavity 1410, and the piston 1320 is used for sealing the medicine storage cavity 1410;
the cartridge 1310 is spaced at intervals by a first positioning flange 1331, a second positioning flange 1332 and a third positioning flange 1333, the first positioning flange 1331, the second positioning flange 1332 and the third positioning flange 1333 are axially distributed along the cartridge 1310;
a first positioning blind hole 1331a, a second positioning blind hole 1332a and a third positioning blind hole 1420 are respectively arranged in the first positioning flange 1331, the second positioning flange 1332 and the third positioning flange 1333, the openings of the first positioning blind hole 1331a and the second positioning blind hole 1332a face to one end of the cartridge 1310, and the opening of the third positioning blind hole 1420 faces to the other end of the cartridge 1310; a first positioning rod 1341, a second positioning rod 1342 and a third positioning rod 1343 are slidably arranged in the first positioning blind hole 1331a, the second positioning blind hole 1332a and the third positioning blind hole 1420 respectively;
a stepped hole 1430 is formed at the other end of the medicine storage cylinder 1310, the lengths of the first locating rod 1341 and the second locating rod 1342 are not less than the inner diameter of the medicine storage cavity 1410 and not more than the inner diameter of the stepped hole 1430, and the length of the third locating rod 1343 is greater than the depth of the medicine storage cavity 1410; the middle portions of the first positioning rod 1341 and the second positioning rod 1342 are respectively provided with a first fitting hole 1341a and a second fitting hole 1342a for fitting with the third positioning rod 1343.
In this embodiment, the first positioning rod 1341, the second positioning rod 1342 and the third positioning rod 1343 are configured to provide a positioning function when they are engaged with an insulin pump. More importantly, the first positioning rod 1341, the second positioning rod 1342 and the third positioning rod 1343 can be constructed as a push rod assembly for pushing the piston 1320, so that the drug storage mechanism can have a function of being used as an injector alone, thereby being convenient to use, and particularly, when the insulin pump cannot work normally, insulin injection can be performed manually.
In another embodiment different from the present embodiment, the first fitting hole 1341a is slidably fitted with the third positioning rod 1343, and the second fitting hole 1342a is a blind hole and is screw-fitted or clearance-fitted with the third positioning rod 1343. Therefore, the first positioning rod 1341 can be preferably disposed in the stepped hole 1430, and the third positioning rod 1343 can pass through the first fitting hole 1341a to stably push the piston 1320; the second positioning rod 1342 can be disposed at an end of the third positioning rod 1343, thereby facilitating the operation of the user.
In this embodiment, the first engagement hole 1341a and the third positioning rod 1343 may be screw-engaged. Pushing of the piston 1320 can thus be achieved, preferably by rotating the third locating rod 1343.
In this embodiment, the second fitting hole 1342a is a through hole and is circumferentially fixed and axially slidably fitted with the third positioning rod 1343. So that the second positioning rod 1342 can be sleeved on the third positioning rod 1343, and the third positioning rod 1343 can be rotated by a user.
In another embodiment different from the present embodiment, the second engagement hole 1342a can be a blind hole and threadedly engaged with the third positioning rod 1343. This allows second locating bar 1342 to provide only torque.
In this embodiment, the cross sections of the third positioning rod 1343 and the second fitting hole 1342a are oblate. So that the circumferential fixed engagement of the third positioning rod 1343 with the second engagement hole 1342a can be preferably achieved.
In this embodiment, the other end of the cartridge 1310 is provided with a circumferential scale on the end surface. So that a more precise control of the injection dose can be achieved, preferably by reading the rotation angle of the second positioning rod 1342.
In this embodiment, a piston-engaging blind hole 1440 is formed on the outer end surface of the piston 1320 for rotatably engaging with the end of the third positioning rod 1343. So that the engagement of the third locating rod 1343 with the piston 1320 can be preferably facilitated.
In this embodiment, the bottom wall of the stepped hole 1430 is provided with a first positioning rod slot 1431 for engaging with two ends of the first positioning rod 1341. So that the first positioning rod 1341 can be preferably formed to be fixed.
In this embodiment, the fourth chamber 224 is provided with a drug storage mechanism mounting seat 260, a drug storage cylinder accommodating cavity 261 for accommodating a drug storage cylinder 1310 is formed at the mounting seat 260, a spring mounting hole 262 is formed at one end of the drug storage cylinder accommodating cavity 261, and a compression spring which can extend into the drug storage cavity 1410 and compress the piston 1320 is arranged in the spring mounting hole 262, so that the piston 1320 can be better kept to compress the drug solution, thereby facilitating drug feeding.
In addition, the other end of the cartridge receiving chamber 261 is formed with a coupling part receiving groove 263 for receiving the hose coupling part 1311, so that the placement of the cartridge 1310 can be preferably facilitated.
In addition, the both ends lateral wall department that storage cylinder held chamber 261 all is equipped with and is used for the location blind hole with first locating lever 1341, second locating lever 1342 and the cooperation of third locating lever 1343 to can realize the location to storage cylinder 1310 better.
Wherein, the tip of first locating lever 1341 and second locating lever 1342 all designs into circular-arcly, and first locating lever 1341 and second locating lever 1342 pass through the setting that the spring can contract completely, and the degree of depth of the location blind hole that corresponds with first locating lever 1341 and second locating lever 1342 is not more than the length of first locating lever 1341 and second locating lever 1342 tip circular arc section, so can be convenient for to the installation and the dismantlement of storage cartridge case 1310 better.
For convenience of description, in the present embodiment, the clockwise direction and the counterclockwise direction are defined with reference to the front view of the cover plate 130 side. In this embodiment, the clockwise direction of the output shaft 417 is set as the drug injection direction, and the counterclockwise direction of the output shaft 417 is set as the return direction.
When the medicine storage mechanism in the embodiment is installed, the following steps can be performed:
1. correspondingly arranging a first positioning rod 1341, a second positioning rod 1342 and a third positioning rod 1343 in the first positioning blind hole 1331a, the second positioning blind hole 1332a and the third positioning blind hole 1420; at this time, the third positioning rod 1343 protrudes out of the third positioning blind hole 1420, and the first positioning rod 1341 and the second positioning rod 1342 can be completely retracted into the first positioning blind hole 1331a and the second positioning blind hole 1332a and extend out of the first positioning blind hole 1331a and the second positioning blind hole 1332 a;
2. inserting the protruding part of the third positioning rod 1343 into the corresponding positioning blind hole, and extending the compression spring at the spring mounting hole 262 into the medicine storage cavity 1410;
3. aligning the hose connection part 1311 with the connection part placement groove 263, and pressing the drug storage cylinder 1310 until the protruding parts of the first positioning rod 1341 and the second positioning rod 1342 are snapped into the corresponding positioning blind holes;
4. the power device is controlled to reset the medicine feeding roller 1010;
5. screwing the limit nut of the abutting seat to enable the hose abutting seat 1020 to move downwards;
6. pressing the hose pressing seat 1020 downwards to form a gap between the hose pressing seat 1020 and the medicine inlet roller 1010 for placing the infusion hose;
7. placing the infusion hose into the hose installation groove 1211, then releasing the hose abutting seat 1020, and adjusting a limit nut of the abutting seat, so as to lock the descending position of the hose abutting seat 1020;
8. and then the infusion hose is led out of the hose through hole 140.
In this embodiment, when the injector is separately constructed by using the medicine storage mechanism for injection, the following steps are performed:
1. the first positioning rod 1341, the second positioning rod 1342, and the third positioning rod 1343 are taken out;
2. the first positioning rod 1341 is clamped into the first positioning rod clamping groove 1431;
3. the third positioning rod 1343 is screwed into the first mating hole 1341a until the corresponding end of the first positioning rod 1341 reaches the piston mating blind hole 1440;
4. a second positioning rod 1342 is inserted into the third positioning rod 1343 through a second fitting hole 1342 a;
5. the movement of the piston 1320 is achieved by directly pulling the third positioning rod 1343 or pulling the third positioning rod 1343 by the second positioning rod 1342;
6. control of the bolus dose is achieved by reading the scale at the reservoir cartridge 1310.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (6)
1. Medicine feed mechanism, its characterized in that: comprises a medicine feeding roller (1010) and a hose abutting seat (1020), wherein the medicine feeding roller (1010) and the hose abutting seat (1020) are matched with an infusion hose in a matching way; the medicine feeding roller (1010) comprises a rotatable roller main body (1110), and a plurality of squeezing wheels (1120) are uniformly arranged on the periphery of the roller main body (1110) in a rotatable manner; a bayonet part (1210) matched with the periphery of the medicine feeding roller (1010) is formed at the hose abutting seat (1020), and a uniform gap for arranging the transfusion hose is formed between the bayonet part (1210) and the medicine feeding roller (1010);
the medicine storage mechanism is matched with the medicine feeding mechanism and comprises a medicine storage cylinder (1310), a medicine storage cavity (1410) is formed in the medicine storage cylinder (1310), and the medicine storage cavity (1410) is used for storing medicine liquid; a hose connection part (1311) for connecting an infusion hose is formed at one end of the cartridge (1310), and the drug storage chamber (1410) is opened at the other end of the cartridge (1310); a piston (1320) is arranged in the medicine storage cavity (1410), and the piston (1320) is used for sealing the medicine storage cavity (1410);
the periphery of the medicine storage cylinder (1310) is provided with a first positioning flange (1331), a second positioning flange (1332) and a third positioning flange (1333) at intervals, and the first positioning flange (1331), the second positioning flange (1332) and the third positioning flange (1333) are axially distributed along the medicine storage cylinder (1310);
a first positioning blind hole (1331 a), a second positioning blind hole (1332 a) and a third positioning blind hole (1420) are respectively arranged in the first positioning flange (1331), the second positioning flange (1332) and the third positioning flange (1333), the openings of the first positioning blind hole (1331 a) and the second positioning blind hole (1332 a) face to one end of the medicine storage cylinder (1310), and the opening of the third positioning blind hole (1420) faces to the other end of the medicine storage cylinder (1310); a first positioning rod (1341), a second positioning rod (1342) and a third positioning rod (1343) are slidably arranged in the first positioning blind hole (1331 a), the second positioning blind hole (1332 a) and the third positioning blind hole (1420), respectively;
a step hole (1430) is formed at the other end of the medicine storage cylinder (1310), the lengths of the first locating rod (1341) and the second locating rod (1342) are not less than the inner diameter of the medicine storage cavity (1410) and not more than the inner diameter of the step hole (1430), and the length of the third locating rod (1343) is more than the depth of the medicine storage cavity (1410); the middle parts of the first positioning rod (1341) and the second positioning rod (1342) are respectively provided with a first matching hole (1341 a) and a second matching hole (1342 a) which are used for matching with the third positioning rod (1343).
2. The medication intake mechanism of claim 1, wherein: an extrusion wheel mounting groove (1111) is formed at the outer side surface of the roller body (1110), and the extrusion wheel (1120) is arranged in the extrusion wheel mounting groove (1111) through an extrusion wheel mounting shaft (1112).
3. The medication intake mechanism of claim 2, wherein: the bayonet part (1210) is provided with a hose installation groove (1211), and the width of the hose installation groove (1211) is basically the same as the thickness of the extrusion wheel (1120).
4. The medication intake mechanism of claim 2, wherein: the hose supports and presses seat (1020) bottom both sides department and all is equipped with to press a guide hole (1212), supports to press a guide hole (1212) be used for with support to press a guide bar (1030) cooperation, supports to press a guide bar (1030) department and is equipped with to press a pressure spring, supports to press a pressure spring and is used for keeping the hose to press seat (1020) to support the trend of pressing into medicine gyro wheel (1010).
5. The drug delivery mechanism of claim 3, wherein: the bottom of the hose abutting seat (1020) is provided with an abutting seat limiting through hole (1213), the abutting seat limiting through hole (1213) is used for being in slidable fit with the abutting seat limiting screw (1040), and an abutting seat limiting nut is arranged at the abutting seat limiting screw (1040).
6. An insulin pump comprising the bolus mechanism of any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110314298.3A CN113018580B (en) | 2021-03-24 | 2021-03-24 | Medicine feeding mechanism and insulin pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110314298.3A CN113018580B (en) | 2021-03-24 | 2021-03-24 | Medicine feeding mechanism and insulin pump |
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| Publication Number | Publication Date |
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| CN113018580A CN113018580A (en) | 2021-06-25 |
| CN113018580B true CN113018580B (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110314298.3A Active CN113018580B (en) | 2021-03-24 | 2021-03-24 | Medicine feeding mechanism and insulin pump |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208330690U (en) * | 2018-05-10 | 2019-01-04 | 无锡市天利流体科技有限公司 | Novel movable pump head |
| CN211343300U (en) * | 2019-10-29 | 2020-08-25 | 保定申辰泵业有限公司 | Hose positioning mechanism that rectifies for peristaltic pump |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2547331Y (en) * | 2002-06-17 | 2003-04-30 | 苏州碧迪医疗器械有限公司 | Disposable self-ruin syringe |
| ES2572477T3 (en) * | 2010-03-09 | 2016-05-31 | Shl Group Ab | Medication Administration Device |
| CN103781505B (en) * | 2011-09-06 | 2016-06-01 | 诺沃—诺迪斯克有限公司 | Piston rod seat |
| CN206443985U (en) * | 2016-11-19 | 2017-08-29 | 安徽医科大学第一附属医院 | Medical syringe |
| CN212214319U (en) * | 2020-01-02 | 2020-12-25 | 江苏迈硕医疗科技有限公司 | Syringe for anesthesia |
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2021
- 2021-03-24 CN CN202110314298.3A patent/CN113018580B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208330690U (en) * | 2018-05-10 | 2019-01-04 | 无锡市天利流体科技有限公司 | Novel movable pump head |
| CN211343300U (en) * | 2019-10-29 | 2020-08-25 | 保定申辰泵业有限公司 | Hose positioning mechanism that rectifies for peristaltic pump |
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