CN115252954B - Double-needle infusion device and insulin pump - Google Patents
Double-needle infusion device and insulin pump Download PDFInfo
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- CN115252954B CN115252954B CN202210822485.7A CN202210822485A CN115252954B CN 115252954 B CN115252954 B CN 115252954B CN 202210822485 A CN202210822485 A CN 202210822485A CN 115252954 B CN115252954 B CN 115252954B
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- infusion
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- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 238000001802 infusion Methods 0.000 title claims abstract description 69
- 102000004877 Insulin Human genes 0.000 title claims abstract description 63
- 108090001061 Insulin Proteins 0.000 title claims abstract description 63
- 229940125396 insulin Drugs 0.000 title claims abstract description 63
- 230000007246 mechanism Effects 0.000 claims abstract description 76
- 238000000034 method Methods 0.000 claims abstract description 28
- 230000008569 process Effects 0.000 claims abstract description 28
- 239000003814 drug Substances 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims description 43
- 239000007924 injection Substances 0.000 claims description 43
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 230000009977 dual effect Effects 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 description 15
- 238000001125 extrusion Methods 0.000 description 11
- 229940079593 drug Drugs 0.000 description 9
- 230000009471 action Effects 0.000 description 7
- 230000006378 damage Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- 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
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M5/1582—Double lumen needles
-
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
-
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
Abstract
The invention discloses a double-needle infusion device for an insulin pump and the insulin pump, which comprises 2 driving mechanisms, a double-needle driving mechanism for driving the driving mechanisms, an infusion tube and an infusion tank unit, wherein the 2 driving mechanisms are symmetrically arranged on two sides of the double-needle driving mechanism, one end of the infusion tube is led out from a medicine outlet of the infusion tank unit and is divided into 2 pieces, the infusion tube is arranged on the 2 driving mechanisms, the outer end of the infusion tube is used for being pricked into a patient body, the insulin is infused, the double-needle driving mechanism comprises a driving arm, and the insulin of the infusion tank unit is infused into a human body in two times by controlling the driving arm to drive the driving mechanisms on two sides to move. According to the invention, 2 symmetrical driving mechanisms are arranged, each driving mechanism is provided with the needle tube and the hose, and the infusion part is replaced in the infusion process under the driving of the double-needle driving mechanism, so that insulin is driven into the human body twice, and the pain of the same part of a patient is effectively relieved for a long time.
Description
Technical Field
The invention relates to the field of insulin infusion equipment, in particular to a double-needle infusion device and an insulin pump.
Background
In recent years, the improvement of the quality of life of people has led to a gradual rise in the number of diabetics. At present, an effective measure for treating diabetes is insulin injection, and an insulin pump can infuse insulin into a patient for a long time and in a trace amount to achieve good control of blood sugar of the patient, so that the insulin pump is a recognized first-choice medical instrument for insulin injection.
The original insulin pump is just as large as a backpack, which is inconvenient to carry and has a simple function, but only for outputting insulin simply. Today's insulin pump is getting smaller and smaller, similar to a pager, and portable, and more functional, but, in miniaturized process, the catheter of insulin pump often exposes, and need wear on relevant annex, and convenient to use, and in some cases, probably because the catheter exposes and can bring the pain to patient's injection site. And in the case of prolonged infusion, catheters which are inserted into the skin of the patient can cause some painful damage to the patient's skin.
Therefore, it is desirable to invent a catheter that is built-in and that alleviates the pain associated with long-term injection of the pump to the infusion site.
CN209108284U patent application describes an applied catheter-free insulin pump with an exposed catheter placed in the pump, but does not solve the problem of pain injuries to the patient caused by the insulin pump in case of long-time infusion. Moreover, current insulin pumps employ single needle actuation and single needle infusion, resulting in increased pain for the patient.
Disclosure of Invention
In order to solve the defects of the technical scheme, the invention aims to provide a double-needle infusion device for an insulin pump.
It is another object of the present invention to provide an insulin pump.
The aim of the invention is achieved by the following technical scheme.
The utility model provides a two needle infusion device for insulin pump, includes 2 and drives into the mechanism, is used for driving into the two needle actuating mechanism of mechanism, infusion pipe and injection jar unit, and 2 drive into the mechanism symmetry and set up in the both sides of two needle actuating mechanism, the one end of infusion pipe is drawn forth and is divided into 2 from the play medicine mouth of injection jar unit, installs 2 on the mechanism is driven into, the outer end of infusion pipe is used for pricking into the patient, infuses insulin, and two needle actuating mechanism includes a driving arm, drives the mechanism through the control driving arm and removes into the mechanism of both sides, drives into human body with the insulin of injection jar unit twice.
In the above technical scheme, driving in the mechanism includes first slider, second slider, reset spring and locating part, and first slider and second slider are located one side of two needle actuating mechanism in proper order set up the first recess of intercommunication on first slider and the second slider, install the infusion pipe in the first recess, reset spring installs on insulin pump's casing one end, and reset spring's the other end is relative with first slider, the locating part is installed on the casing set up the second fixture block on the second slider for with locating part joint.
In the above technical scheme, the front portion of the infusion tube comprises two parts including a needle tube and a hose, the needle tube stretches into the hose, the needle tube is fixed in a first groove of the first sliding block, the hose is fixed in a first groove of the second sliding block, and a first through hole for the needle tube and the hose to penetrate is formed in the shell.
In the above technical solution, the double needle driving mechanism includes the driving arm, a connecting rod, a driving rod, a pushing rod, a coil spring in a torsion state, and a rotating column, one end of the connecting rod is connected with a piston of the injection tank unit, the other end of the connecting rod is opposite to one end of the driving rod, a pushing block is disposed on the pushing rod, the other end of the driving rod is opposite to the pushing block, one end of the pushing rod is movably connected with the rotating column, the other end of the pushing rod is connected with the housing through an elastic member, the rotating column is mounted on the housing, and the connecting rod is parallel to a piston rod of the injection tank unit;
one end of the coil spring is arranged on the shell, the other end of the coil spring is arranged on the rotating column, the driving arm is arranged on the rotating column, a first limit step and a second limit step are symmetrically arranged on the rotating column, the thickness of the first limit step is smaller than that of the second limit step, a hole is formed at the boundary of the rotating column and the second limit step, the hole is positioned on the opposite side of the pushing rod and the driving rod, and one end of the pushing rod is arranged in the hole so as to realize movable connection;
the end of the driving rod is provided with a second propping structure opposite to the pushing rod, the middle part of the driving rod is provided with a first propping structure opposite to the pushing rod, and the two propping structures are used for propping up the pushing rod and connecting with the rotating column.
In the above technical scheme, one end of the driving rod is provided with a bending connecting piece, a first clamping block is arranged on the bending connecting piece, a clamping groove opposite to the first clamping block is arranged on the connecting rod, insulin is injected into the injection tank through an injection port arranged on the injection tank of the injection tank unit, and in the process, the piston is pushed to drive the connecting rod to be connected with the driving rod through the first clamping block and the clamping groove.
In the technical scheme, the rotating column is arranged in a hollow mode, an inner ring hole is formed in the rotating column, the coil spring is arranged in the cavity of the rotating column, an inner ring end of the coil spring is connected with the shell through the shaft body, the shaft body is arranged on the shell, and an outer ring end of the coil spring is connected with the rotating column through the inner ring hole.
In the above technical scheme, including extracting clamping mechanism, extracting clamping mechanism includes push rod, extrusion spring, extrusion piece and baffle set gradually push rod, first through-hole, extrusion piece and baffle on the casing, the one end of push rod link up the casing, expose outside the casing set up the slide on the casing set up on the push rod be used for at the gliding second spout of slide set up the second recess on the casing, extrusion spring is located the second recess, extrusion piece is connected to extrusion spring's upper end, and extrusion piece's shape is right trapezoid platform, and right trapezoid platform's inclined plane up, the bottom surface of push rod flushes with the minimum limit on inclined plane.
In the above technical scheme, a rubber gasket is arranged at the first through hole to prevent the hose from being exposed, and a part of insulin flows out of the hose.
An insulin pump comprising the above-described two-needle infusion device.
In the above technical scheme, the drug injection device further comprises a controller unit and 2 position detection sensors, wherein the signal output ends of the 2 position detection sensors are connected with the controller unit, the first position detection sensor is installed in the middle of the connecting rod, and the second position detection sensor is installed at the position, close to the piston, of the connecting rod and is located outside the drug injection tank.
According to the invention, 2 symmetrical driving mechanisms are arranged, each driving mechanism is provided with the needle tube and the hose, and the infusion part is replaced in the infusion process under the driving of the double-needle driving mechanism, so that insulin is driven into the human body twice, and the pain of the same part of a patient is effectively relieved for a long time.
The needle-containing tube and the hose are arranged in the insulin pump, so that adverse effects caused by the fact that the infusion tube is exposed outside the insulin pump are prevented.
The double-needle driving mechanism of the invention can drive the driving mechanism to complete the insulin infusion process only by pushing the force of the piston, and can realize the speed of insulin infusion by controlling the movement of the piston.
Drawings
FIG. 1 is a schematic view of the overall structure of a dual needle infusion device of the present invention;
FIG. 2 is a schematic view of the driving mechanism of the present invention;
FIG. 3 is a schematic view of a dual needle drive mechanism according to the present invention;
FIG. 4 is an enlarged view of a portion of a dual needle infusion device of the present invention;
FIG. 5 is a schematic view of a portion of a dual needle drive mechanism of the present invention;
FIG. 6 is a cross-sectional view of a portion of the structure of the dual needle drive mechanism of the present invention;
FIG. 7 is a schematic view of a portion of the structure of the dual needle drive mechanism of the present invention;
FIG. 8 is a schematic view of a portion of a dual needle infusion device of the present invention;
fig. 9 is a schematic structural view of the pull-out clamping mechanism of the present invention.
Wherein,
1: drug injection tank unit, 1-1: drug outlet, 1-2: medicine injection tank, 1-3: piston, 1-4: a piston rod, 2: connecting rod, 2-1: clamping groove, 3: drive rod, 3-1: first top touch structure, 3-2: bending connecting piece, 3-3: first fixture block, 3-4: second top touch structure, 4: push rod, 4-1: push block, 5.1: first position detection sensor, 5.2: second position detection sensor, 6: coil spring, 7: driving mechanism, 7-1: first slider, 7-2: second slider, 7-3: first groove, 7-4: return spring, 7-5: limiting piece, 7-6: second fixture block, 8: needle tube containing, 9: hose, 9-1: expanding end, 10: shell, 10-1: first chute, 10-2: first through hole, 10-3: slide way, 10-4: second groove, 10-5: limiting holes, 10-6: guide lumen, 10-7: guide plate, 11: rubber gasket, 12: inner ring hole, 13: rotating column, 13-1: first spacing ladder, 13-2: second limiting step, 14: driving arm, 15: baffle, 16: connection column, 17: gasket, 18: hole, 19: pushrod, 19-1: second chute, 20: compression spring, 21: extruding the blocks.
Detailed Description
The technical scheme of the invention is further described below with reference to specific embodiments.
Example 1
As shown in fig. 1-2, a double needle infusion device for an insulin pump comprises 2 driving mechanisms 7, a double needle driving mechanism for driving the driving mechanisms 7, an infusion tube and an infusion tank unit 1, wherein the 2 driving mechanisms 7 are symmetrically arranged at two sides of the double needle driving mechanism, one end of the infusion tube is led out from a medicine outlet 1-1 of the infusion tank unit 1 and divided into 2 pieces, the infusion tube is symmetrically arranged on the 2 driving mechanisms 7, and the outer end of the infusion tube is used for being pricked into a patient to infuse insulin; the double-needle driving mechanism comprises a driving arm 14, and drives the driving mechanism 7 at one side to drive the infusion tube to prick into a human body in the process of controlling the driving arm 14 to rotate 180 degrees, and then half of insulin in the injection tank unit 1 is driven into the human body; in the process of continuously rotating the driving arm 14 by 180 degrees, the driving mechanism 7 on the other side is driven to repeat the above actions, and finally the other half of insulin in the injection tank unit 1 is driven into a human body through the infusion tube on the side.
The driving mechanism 7 comprises a first sliding block 7-1, a second sliding block 7-2, a reset spring 7-4 and a limiting piece 7-5, wherein the first sliding block 7-1 and the second sliding block 7-2 are sequentially positioned on one side of the double-needle driving mechanism, a first groove 7-3 communicated with each other is formed in the first sliding block 7-1 and the second sliding block 7-2, an infusion tube is arranged in the first groove 7-3, one end of the reset spring 7-4 is arranged on a shell 10 of the insulin pump, the other end of the reset spring 7-4 is opposite to the first sliding block 7-1, the limiting piece 7-5 is arranged on the shell 10, and a second clamping block 7-6 is arranged on the second sliding block 7-2 and is used for being clamped with the limiting piece 7-5.
Specifically, a rail is provided on the housing 10 of the insulin pump, and the first slider 7-1 and the second slider 7-2 are movable on the rail, and a two-needle driving mechanism is mounted on the housing 10.
The front part of the infusion tube comprises two parts including a needle tube 8 and a hose 9, the needle tube 8 stretches into the hose 9, the needle tube 8 is fixed in a first groove 7-3 of a first sliding block 7-1, one end of the hose 9 is provided with an expanding end 9-1, the expanding end 9-1 is fixed in the first groove 7-3 of a second sliding block 7-2, the second sliding block 7-2 can synchronously drive the hose 9 to move, and a first through hole 10-2 for connecting the needle tube 8 and the hose 9 is arranged on a shell 10.
The double needle infusion device for insulin pump works as follows: in the process that the double-needle driving mechanism rotates 90 degrees from the initial position, the first slider 7-1 and the second slider 7-2 on one side are pushed to move, meanwhile, the first slider 7-1 and the second slider 7-2 drive the needle containing tube 8 and the hose 9 to synchronously move, the needle containing tube 8 drives the hose 9 to be pricked into a human body, when the double-needle driving mechanism rotates 90 degrees, the first slider 7-1 compresses the reset spring 7-4 to the limit position and the limiting piece 7-5 is clamped on the second clamping block 7-6, in the process that the double-needle driving mechanism continues to rotate 90-180 degrees, the reset spring 7-4 rebounds to rebound the first slider 7-1 in the original way, the first slider 7-1 drives the needle containing tube 8 to be separated from the human body and remain in the hose 9, in the process, insulin in the injection tank unit 1 enters the human body from the drug outlet 1-1 through the needle containing tube 8 and the hose 9, and after half of the insulin in the injection tank unit 1 is pricked into the human body, the hose 9 on the side is pulled out and clamped, so that the insulin is not leaked; the driving mechanism of the double needle continuously rotates from 180 degrees to 360 degrees, the driving mechanism 7, the needle containing tube 8 and the hose 9 on the other side are pushed to repeat the same actions, and finally, the other half of insulin in the injection tank unit 1 is driven into a human body.
In this embodiment, the two-needle driving mechanism may be 2 drivers, and one driver drives one driving mechanism to act through the action end of one driver, then drives half of insulin in the injection tank unit into the human body, and the other driver drives the other driving mechanism to act through the action end of the other driver, and finally drives the rest half of insulin in the injection tank unit into the human body.
Example 2
As shown in fig. 3-8, this embodiment provides a dual needle driving mechanism including a driving arm 14 in embodiment 1, the driving mechanism is linked by the action of a piston 1-3 of a drug injection canister unit 1, and includes the driving arm 14, a connecting rod 2, a driving rod 3, a pushing rod 4, a coil spring 6 in a torsion state, and a rotating post 13, one end of the connecting rod 2 is connected with the piston 1-3 of the drug injection canister unit 1, the other end of the connecting rod 2 is opposite to one end of the driving rod 3, a pushing block 4-1 is provided on the pushing rod 4, the other end of the driving rod 3 is opposite to the pushing block 4-1, one end of the pushing rod 4 is movably connected with the rotating post 13, the other end of the pushing rod 4 is connected with a housing 10 through an elastic member, a limiting hole 10-5 is provided on the housing 10, the pushing rod 4 is installed in the limiting hole 10-5 (as shown in fig. 8), the rotating post 13 is installed on the housing 10, and the connecting rod 2 is parallel to the piston rod 1-4 of the drug injection canister unit 1. One end of the coil spring 6 is arranged on the shell 10, the other end of the coil spring 6 is arranged on the rotating column 13, the driving arm 14 is arranged on the rotating column 13, a first limit step 13-1 and a second limit step 13-2 are symmetrically arranged on the rotating column 13, the thickness of the first limit step 13-1 is smaller than that of the second limit step 13-2, an opening 18 is formed at the joint of the rotating column 13 and the second limit step 13-2, the opening 18 is positioned on the opposite side of the pushing rod 4 from the driving rod 3, and the pushing rod 4 is arranged in the opening 18 so as to realize movable connection.
As shown in fig. 4, a first chute 10-1 is formed in the housing 10 for accommodating the driving rod 3 and the connecting rod 2. As shown in fig. 3, a bending connecting piece 3-2 is disposed at one end of a driving rod 3, a first clamping block 3-3 is disposed on the bending connecting piece 3-2, and a clamping groove 2-1 opposite to the first clamping block 3-3 is disposed on a connecting rod 2, so that the driving rod 3 and the connecting rod 2 are clamped through the first clamping block 3-3 and the clamping groove 2-1 in the moving process. The end of the driving rod 3 is provided with a second top contact structure 3-4 opposite to the pushing rod 4, the middle part of the driving rod 3 is provided with a first top contact structure 3-1 opposite to the pushing rod 4, the two top contact structures are used for pushing up the connection between the pushing rod 4 and the rotating column 13, and the first top contact structure 3-1, the second top contact structure 3-2 and the pushing block 4-1 are oppositely arranged. Specifically, the rotation post 13 is connected to the driving arm 14 via a connection post 16, the connection post 16 penetrates the driving arm 14, and a spacer 17 is attached to the upper end thereof. As shown in fig. 6, the rotating column 13 is hollow, an inner ring hole 12 is arranged in the rotating column 13, the coil spring 6 is arranged in the cavity of the rotating column, the inner ring end of the coil spring 6 is connected with the shell 10 through a shaft body, the shaft body is arranged on the shell 10, and the outer ring end of the coil spring 6 is connected with the rotating column 13 through the inner ring hole 12.
As shown in FIG. 1, a guide cavity 10-6 and a guide plate 10-7 are arranged on a shell 10, the needle containing tube 8 is placed in the guide cavity 10-6 before being divided into 2 pieces, and the needle containing tube 8 is placed in the guide plate 10-7 after being divided into 2 pieces and then enters a first groove 7-3 of a first sliding block 7-1 and a second sliding block 7-2.
The working process of the double-needle driving mechanism comprises the following steps: corresponding to the working process of the embodiment 1, insulin is injected into the injection tank 1-2 through an injection port arranged on the injection tank 1-2 of the injection tank unit 1, in the process, the piston 1-3 is pushed out of the injection tank 1-2, and the piston 1-3 drives the connecting rod 2 to move until the first clamping block 3-3 is clamped in the clamping groove 2-, so that the connecting rod 2 is connected with the driving rod 3; when the injection tank 1-2 is filled with insulin, the piston 1-3 is pushed into the injection tank 1-2, the piston 1-3 moves and drives the connecting rod 2 and the driving rod 3 to move, the driving rod 3 pushes the pushing rod 4 to be connected with the rotating column 13 through the second contact structure 3-4, and the coil spring 6 drives the rotating column 13 and the driving arm 14 to rotate by 90 degrees, and the driving arm 14 pushes the first slider 7-1 and the second slider 7-2 on one side to move and drives the needle tube 8 and the hose 9 on the side to be linked (the first slider and the second slider repeat the working process described in the embodiment 1); the coil spring 6 drives the driving arm 14 to continuously rotate 90 degrees, the pushing rod 4 is contacted with the first limiting step 13-1 to stop the rotating column 13 from rotating, at the moment, half of insulin in the medicine injection tank 1-2 is driven into a human body, and meanwhile, the first contact structure 3-1 on the driving rod 3 moves to the position of the pushing block 4-1; the piston continues to drive the connecting rod 2 and the driving rod 3 to move, the driving rod 3 pushes up the connection of the pushing rod 4 and the rotating column 13 through the first contact structure 3-1 on the driving rod, and in the process that the coil spring 6 continues to drive the driving arm 14 to rotate by 90 degrees again, the driving arm 14 pushes the first sliding block 7-1 and the second sliding block 7-2 on the other side to move to repeat the above actions, the driving arm 14 rotates by 90 degrees again, the pushing rod 4 contacts with the second limiting step 13-2, and the rotating column 13 is prevented from continuing to rotate.
Example 3
An insulin pump comprising the two-needle infusion device and the two-needle drive mechanism of examples 1 and 2.
The insulin pump further comprises a controller unit and 2 position detection sensors, wherein the signal output ends of the 2 position detection sensors are connected with the controller unit, the first position detection sensor 5.1 is installed in the middle of the connecting rod 2, and the second position sensor 5.2 is installed at the position, close to the piston, of the connecting rod 2 and is located outside the drug injection tank 1-2. The insulin pump works as follows: on the basis of the working process of the embodiment 1 and the embodiment 2, in the process that the piston 1-3 drives the connecting rod 2 to move, when the connecting rod 2 is disconnected from the first position detection sensor 5.1, at the moment, the first contact structure 3-1 of the driving rod 3 moves to the position of the pushing block 4-1 to indicate that half of insulin in the medicine injection tank 1-2 is injected into a human body, the first position detection sensor 5.1 transmits a signal to the controller unit, and the controller unit controls an alarm on the shell 10 to give an alarm to remind a patient that half of the infusion process is completed, and the hose 9 clamping the side is manually pulled out; then, the piston drives the connecting rod 2 to continue to move until the connecting rod 2 is disconnected with the second position detection sensor 5.2, the signal is transmitted to the controller unit, the alarm sounds to remind the patient of completing the infusion, and the purpose of changing the infusion position is achieved through the operation process, so that the pain of the patient is relieved.
Example 4
On the basis of the embodiment 3, the controller unit is connected with a mobile phone of a patient through Bluetooth, and control software is installed on the mobile phone without installing an alarm in the embodiment 3.
The working process comprises the following steps: on the basis of the working process of the embodiment 1 and the embodiment 2, when the connecting rod 2 is disconnected from the first position detection sensor 5.1 in the process of the piston driving the connecting rod 2 to move, the first position detection sensor 5.1 transmits a signal to the controller unit, the controller unit transmits a signal to the mobile phone to remind a patient that half of the infusion process is completed, and the patient can control the controller unit to realize the stop action of the piston through the mobile phone so as to stop infusion, pull out and clamp the hose 9 on the side; the mobile phone controls the controller unit to realize that the piston continues to push and drives the connecting rod 2 to continue moving until the piston is disconnected with the second position detection sensor 5.2, signals are transmitted to the controller unit and then to the mobile phone to remind a patient of completing infusion, and the purpose of changing the infusion position is realized through the operation process, so that the pain of the patient is relieved.
Example 5
As shown in fig. 9, this embodiment provides a pull-out clamping mechanism for pulling out a clamping hose 9 according to embodiments 1 to 4, which includes a push rod 19, a compression spring 20, a compression block 21 and a baffle 15, where the push rod 19, a first through hole 10-2, the compression block 21 and the baffle 15 are sequentially disposed on the housing 10, one end of the push rod 19 penetrates through the housing, and is exposed outside the housing, a slide way 10-3 is disposed on the housing 10, a second slide groove 19-1 for sliding on the slide way 10-3 is disposed on the push rod 19, a second groove 10-4 is disposed on the housing 10, the compression spring 20 is located in the second groove 10-4, the upper end of the compression spring 20 is connected with the compression block 20, the compression block 21 is in a right trapezoid table, the slope of the right trapezoid table faces upward, and the bottom surface of the push rod 19 is flush with the lowest edge of the slope.
The working process comprises the following steps: pushing the push rod 19, the push rod 19 drives the hose 9 to move towards the baffle 15, in the process, the extrusion block 21 presses the extrusion spring 20 downwards, the extrusion spring 20 generates resilience force, the extrusion block 21 returns to the initial position, the push rod 19 is prevented from returning, and finally the hose 9 is clamped between the push rod 19 and the baffle 15 and pulled out of a human body.
Example 6
On the basis of the embodiment 1-5, as shown in fig. 9, a rubber gasket 11 is arranged at the first through hole 10-2 to prevent the hose 9 from being exposed, a part of insulin flows out of the hose 9, and the needle containing tube 8 can drive the hose 9 to puncture the rubber gasket 11 to enter a human body under the driving of the double-needle driving mechanism.
The foregoing has described exemplary embodiments of the invention, it being understood that any simple variations, modifications, or other equivalent arrangements which would not unduly obscure the invention may be made by those skilled in the art without departing from the spirit of the invention.
Claims (6)
1. The double-needle infusion device for the insulin pump is characterized by comprising 2 driving mechanisms (7), a double-needle driving mechanism for driving the driving mechanisms (7), an infusion tube and an infusion tank unit (1), wherein 2 driving mechanisms (7) are symmetrically arranged on two sides of the double-needle driving mechanism, one end of the infusion tube is led out from a medicine outlet (1-1) of the infusion tank unit (1) and divided into 2 pieces, the infusion tube is arranged on 2 driving mechanisms (7), the outer end of the infusion tube is used for being pricked into a patient body to infuse insulin, the double-needle driving mechanism comprises a driving arm (14), and the driving arm (14) is controlled to rotationally drive the driving mechanisms (7) on two sides to move so as to drive the insulin of the infusion tank unit (1) into a human body for two times;
the driving mechanism (7) comprises a first sliding block (7-1), a second sliding block (7-2), a return spring (7-4) and a limiting piece (7-5), wherein the first sliding block (7-1) and the second sliding block (7-2) are sequentially arranged on one side of the double-needle driving mechanism, a first groove (7-3) communicated with the first sliding block (7-1) and the second sliding block (7-2) is formed in the first groove (7-3), an infusion tube is arranged in the first groove (7-3), one end of the return spring (7-4) is arranged on a shell (10) of the insulin pump, the other end of the return spring (7-4) is opposite to the first sliding block (7-1), the limiting piece (7-5) is arranged on the shell (10), and a second clamping block (7-6) is arranged on the second sliding block (7-2) and used for being clamped with the limiting piece (7-5);
the infusion tube comprises two parts including a needle tube (8) and a hose (9), one end of the needle tube (8) extends outwards from the medicine outlet (1-1) and is divided into 2 parts, the two parts are distributed on two sides of the double-needle driving mechanism, the needle tube (8) stretches into the hose (9), the needle tube (8) is fixed in a first groove (7-3) of a first sliding block (7-1), the hose (9) is fixed in a first groove (7-3) of a second sliding block (7-2), and a first through hole (10-2) for the needle tube (8) to penetrate through the hose (9) is arranged on the shell (10);
the double-needle driving mechanism comprises a driving arm (14) and a connecting rod (2), a driving rod (3), a pushing rod (4), a coil spring (6) and a rotating column (13), wherein the coil spring (6) and the rotating column (13) are in torsion states, one end of the connecting rod (2) is connected with a piston (1-3) of a medicine injection tank unit (1), the other end of the connecting rod (2) is opposite to one end of the driving rod (3), a pushing block (4-1) is arranged on the pushing rod (4), the other end of the driving rod (3) is opposite to the pushing block (4-1), one end of the pushing rod (4) is movably connected with the rotating column (13), the other end of the pushing rod (4) is connected with a shell (10) through an elastic piece, the rotating column (13) is arranged on the shell (10), and the connecting rod (2) is parallel to the piston (1-3) of the medicine injection tank unit (1);
one end of the coil spring (6) is arranged on the shell (10), the other end of the coil spring (6) is arranged on the rotating column (13), the driving arm (14) is arranged on the rotating column (13), a first limit step (13-1) and a second limit step (13-2) are symmetrically arranged on the rotating column (13), the thickness of the first limit step (13-1) is smaller than that of the second limit step (13-2), an opening (18) is formed at the boundary part of the rotating column (13) and the second limit step (13-2), the opening (18) is positioned on the opposite side of the pushing rod (4) from the driving rod (3), and one end of the pushing rod (4) is arranged in the opening (18) so as to realize movable connection;
the driving rod (3) is provided with a second propping structure (3-4) opposite to the pushing rod (4), the middle part of the driving rod (3) is provided with a first propping structure (3-1) opposite to the pushing rod (4), and the two propping structures are used for propping up the connection of the pushing rod (4) and the rotating column (13).
2. The double needle infusion device according to claim 1, wherein a bending connecting piece (3-2) is arranged at one end of the driving rod (3), a first clamping block (3-3) is arranged on the bending connecting piece (3-2), a clamping groove (2-1) opposite to the first clamping block (3-3) is arranged on the connecting rod (2), insulin is injected into the medicine injection tank (1-2) through a medicine injection port arranged on the medicine injection tank (1-2) of the medicine injection tank unit (1), and in the process, the piston (1-3) is pushed to drive the connecting rod (2) to be connected with the driving rod (3) through the first clamping block (3-3) and the clamping groove (2-1).
3. The double needle infusion device according to claim 2, wherein the rotating column (13) is arranged in a hollow mode, an inner ring hole (12) is formed in the rotating column (13), the coil spring (6) is arranged in a cavity of the rotating column (13), an inner ring end of the coil spring (6) is connected with the shell (10) through a shaft body, the shaft body is arranged on the shell (10), and an outer ring end of the coil spring (6) is connected with the rotating column (13) through the inner ring hole (12).
4. A dual needle infusion device according to claim 3, comprising a pull-out clamping mechanism comprising a push rod (19), a compression spring (20), a compression block (21) and a baffle (15), wherein the push rod (19), the first through hole (10-2), the compression block (21) and the baffle (15) are sequentially arranged on the housing (10), one end of the push rod (19) penetrates through the housing (10) and is exposed out of the housing (10), a slideway (10-3) is arranged on the housing (10), a second chute (19-1) for sliding on the slideway (10-3) is arranged on the push rod (19), a second groove (10-4) is arranged on the housing (10), the compression spring (20) is positioned in the second groove (10-4), the upper end of the compression spring (20) is connected with the compression block (21), the shape of the compression block (21) is a right trapezoid, the inclined plane of the right trapezoid is upward, and the bottom surface of the push rod (19) is flush with the lowest inclined plane of the right trapezoid.
5. A dual needle infusion device according to claim 4, wherein a rubber gasket (11) is provided at the first through hole (10-2) to prevent the tubing (9) from being exposed and a portion of insulin from flowing out of the tubing (9).
6. An insulin pump comprising a dual needle infusion device according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210822485.7A CN115252954B (en) | 2022-07-13 | 2022-07-13 | Double-needle infusion device and insulin pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210822485.7A CN115252954B (en) | 2022-07-13 | 2022-07-13 | Double-needle infusion device and insulin pump |
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| Publication Number | Publication Date |
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| CN115252954A CN115252954A (en) | 2022-11-01 |
| CN115252954B true CN115252954B (en) | 2024-01-23 |
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| CN202210822485.7A Active CN115252954B (en) | 2022-07-13 | 2022-07-13 | Double-needle infusion device and insulin pump |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600526A (en) * | 2012-03-09 | 2012-07-25 | 北京化工大学 | Intelligent micropump for switching between insulin infusion and glucagon infusion |
| US8382703B1 (en) * | 2011-10-18 | 2013-02-26 | King Saud University | Piezoelectric dual-syringe insulin pump |
| CN111432740A (en) * | 2017-11-15 | 2020-07-17 | 亚克安娜生命科学有限公司 | Drug delivery system and method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070088271A1 (en) * | 2005-10-18 | 2007-04-19 | Richards Cynthia C | Medication device |
| GR20090100384A (en) * | 2009-07-08 | 2011-02-18 | Αχιλλεας Τσουκαλης | Insulin pump |
-
2022
- 2022-07-13 CN CN202210822485.7A patent/CN115252954B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8382703B1 (en) * | 2011-10-18 | 2013-02-26 | King Saud University | Piezoelectric dual-syringe insulin pump |
| CN102600526A (en) * | 2012-03-09 | 2012-07-25 | 北京化工大学 | Intelligent micropump for switching between insulin infusion and glucagon infusion |
| CN111432740A (en) * | 2017-11-15 | 2020-07-17 | 亚克安娜生命科学有限公司 | Drug delivery system and method |
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| CN115252954A (en) | 2022-11-01 |
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