CN109224195B - Reusable drip sequence controller - Google Patents
Reusable drip sequence controller Download PDFInfo
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- CN109224195B CN109224195B CN201810759101.5A CN201810759101A CN109224195B CN 109224195 B CN109224195 B CN 109224195B CN 201810759101 A CN201810759101 A CN 201810759101A CN 109224195 B CN109224195 B CN 109224195B
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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
- A61M5/168—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
- A61M5/16804—Flow controllers
- A61M5/16827—Flow controllers controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths
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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)
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- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a reusable drip sequence controller, which comprises a bracket, wherein an injection device, a locking device and a sequence control device are sequentially arranged on the bracket; an injection device comprising a plurality of drip bottles and an integrated conduit; the locking device comprises a plurality of control pins, a plurality of locking buckles and a mounting disc; the sequence control device comprises a rotating block, a sliding block, a push rod and a motor; the sliding block is in a long strip shape and comprises a first head part and a second head part, the first head part is provided with a third pin hole, and the second head part is provided with a fourth pin hole; the rotating block comprises a first circular ring and a second circular ring, a circle of sliding grooves for sliding the sliding block are formed in the outer circular surface of the first circular ring, and the second circular ring is fixedly connected with the first circular ring; the second head of the sliding block is hinged with the first head of the push rod through a second pin, the sliding block controls the push rod to rotate up and down, and the push rod controls the conduction or the closing of the guide pipe. The invention has the advantages that the controller controls the drip infusion in sequence, does not need to change the bottle midway and can be repeatedly used.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a reusable drip sequence controller.
Background
Intravenous infusion is a method of infusing a large amount of sterile liquid, electrolyte and medicine into the body from veins by utilizing the principles of atmospheric pressure and hydrostatic pressure. The transfusion device is an indispensable medical equipment for realizing venous transfusion, the traditional transfusion device is made of PVC (polyvinyl chloride) as a raw material, and the high-performance polyolefin thermoplastic elastomer is considered as a material for manufacturing the disposable transfusion device and has high safety performance. When a patient is treated by infusion, a plurality of bottles of liquid medicine are often required to be injected at one time. When one bottle of liquid medicine is used up, a nurse is required to pull out the bottle inserting needle and insert the next bottle of liquid medicine for continuous transfusion; the nurse cannot pay attention to the medicine bottle and cannot change the medicine bottle in time, and air can enter the human body, so that the life safety is harmed.
Disclosure of Invention
The present invention addresses the above-described deficiencies of the prior art by providing a reusable droplet sequence controller for sequentially controlling droplets through the controller.
The invention solves the technical problem by adopting the technical scheme that a reusable drip sequence controller is provided, which comprises a bracket and is characterized in that: the bracket is sequentially provided with an injection device, a locking device and a sequence control device from top to bottom;
the injection device comprises a plurality of drip bottles and an integrated conduit, wherein the plurality of drip bottles are suspended on a bracket; the integrated conduit comprises a main conduit and a plurality of branch conduits, the lower end of each branch conduit is communicated with the main conduit, and the upper end of each branch conduit is inserted into the mouth of the infusion bottle;
the locking device comprises a plurality of control pins, a plurality of locking buckles and a mounting disc; the mounting disc is fixed on the support, a plurality of notches are formed in the outer ring of the mounting disc, a first pin hole is formed in the left side of each notch, and a second pin hole is formed in the right side of each notch; the control pin is inserted into a first pin hole of the mounting disc, the locking buckle is mounted in a second pin hole of the mounting disc through the first pin, and the locking buckle and a notch on the mounting disc surround a conduit groove;
the sequence control device comprises a rotating block, a sliding block, a push rod and a motor; the sliding block is in a long strip shape and comprises a first head part and a second head part, the first head part of the sliding block is provided with a third pin hole, and the second head part of the sliding block is provided with a fourth pin hole; the rotating block comprises a first circular ring and a second circular ring, a circle of sliding grooves for sliding the sliding block are formed in the outer circular surface of the first circular ring, and the second circular ring is fixedly connected with the first circular ring; the second head of the sliding block is hinged with the first head of the push rod through a second pin, the sliding block controls the push rod to rotate up and down, and the push rod controls the conduction or the closing of the guide pipe; and a motor for driving the rotating block to rotate is fixed on the mounting disc.
In the above-mentioned reusable drip sequence controller, the integrated tube includes a plurality of branch tubes in an upper half portion, and the plurality of branch tubes join together in a lower half portion to communicate with the main tube.
In the above reusable drip sequence controller, the control pin comprises a first cylinder, a second cylinder and a third cylinder, the diameters of the first cylinder and the third cylinder are larger than the diameter of the second cylinder, the upper part of the second cylinder is connected with the first cylinder, and the lower part of the second cylinder is connected with the third cylinder; two sliding rails are longitudinally arranged on the second cylinder and close to the first cylinder, a first inclined plane is formed on the second cylinder and close to the third cylinder, and the two sliding rails can slide up and down along the first pin hole of the mounting disc; and a return spring is arranged between the first cylinder and the mounting disc and sleeved on the second cylinder.
In the above reusable drip sequence controller, the locking buckle forms a second inclined surface on the first side surface, and the second inclined surface is matched with the first inclined surface on the second cylinder of the control pin for locking; and a reset torsion spring is arranged between the locking buckle and the mounting plate and sleeved on the first pin.
In the above reusable drip sequence controller, the inner circular surfaces of the first circular ring and the second circular ring of the rotary block are rotatably connected with the bracket; a circle of sliding grooves for sliding the sliding blocks are formed in the outer circular surface of the first circular ring; the cross section of the sliding groove is similar to a T shape, and the sliding groove is downward formed into a V shape at one position on the outer circular surface of the first circular ring.
In the reusable drip sequence controller, a first rectangular through groove for the push rod to move back and forth is formed in the notch of the mounting plate, and a second rectangular groove is formed between the first rectangular through groove and the guide pipe groove.
In the reusable drip sequence controller, a through groove for assembling the sliding block is formed in the middle of the first head part of the push rod; the first head of the push rod is connected with the second head of the sliding block through a second pin, the second head of the push rod is installed in a second rectangular groove of the installation disc through a third pin, and the third pin can slide along the second rectangular groove.
In the reusable drip sequence controller, the outer circular surface of the second circular ring of the rotating block is in interference fit with a worm wheel, and the worm wheel is connected with the motor in a transmission way through a worm.
In the above-mentioned reusable drip sequence controller, the plurality of branch ducts of the upper half of the integrated duct are merged at the lower part of the mounting plate through the duct slot and communicated with the main duct; the second head of the push rod is pressed against the surface of the branch conduit to control the closing or the conduction of the branch conduit.
In the above reusable drip sequence controller, only one of the branch ducts of the upper half of the integrated duct is conducted with the main duct of the lower half during operation, and the other branch ducts are closed in the duct groove by the push rod.
Compared with the prior art, the invention has the following beneficial effects:
1. the rotation block rotates to drive the sliding block and the push rod to move, so that the connection or the disconnection of the branch guide pipes are controlled, the sequential control of the infusion can be realized, and the needle does not need to be pulled midway to replace the medicine bottle;
2. the control pin is matched with the locking buckle to lock the branch guide pipe, so that the structure is simple;
3. after the infusion is finished, the device can be repeatedly used.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of another perspective of the overall structure;
FIG. 3 is a schematic view of an integrated catheter;
FIG. 4 is a schematic view of a rotating block;
FIG. 5 is another perspective view of the rotating block;
FIG. 6 is a half sectional view of the rotating block;
FIG. 7 is a schematic view of a mounting plate;
FIG. 8 is a half sectional view of the mounting plate;
FIG. 9 is a schematic view of a control pin;
FIG. 10 is a schematic view of the locking buckle;
FIG. 11 is a schematic view of a slider;
FIG. 12 is a schematic view of the branch conduits being conducted;
fig. 13 is a schematic view of the partial duct closing.
In the figure, 100, the injection device; 110. an integrated conduit; 111. a first branch duct; 112. a second branch conduit; 113. a third branch conduit; 114 a fourth conduit; 115. a main duct; 200. a locking device; 210. a control pin; 211. a first cylinder; 212. a second cylinder; 213. a third cylinder; 214. a slide rail; 215. a first inclined plane; 220. locking buckles; 221. a second inclined plane; 230. mounting a disc; 231. a notch; 232. a first pin hole; 233. a second pin hole; 234. a first rectangular through slot; 235. a second rectangular groove; 240. a return spring; 250. a return torsion spring; 300. a sequence control device; 310. rotating the block; 311. a first circular ring; 312. a second circular ring; 313. a chute; 320. a slider; 321. a slider first head; 322. a slider second head; 330. a push rod; 331. a first head of the push rod; 332. a push rod second head; 340. an electric motor.
Detailed Description
The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and the detailed description, but the present invention is not limited to these examples.
As shown in fig. 1, 2 and 3, the present invention includes: the support, the support is provided with injection device 100, locking device 200 and sequence control device 300 from top to bottom in proper order. An injection device 100 comprising a plurality of drip bottles and an integrated conduit 110, the plurality of drip bottles being suspended from a support; the integrated duct 110 comprises a main duct 115, a first branch duct 111, a second branch duct 112, a third branch duct 113 and a fourth branch duct 114; the lower ends of the first branch duct 111, the second branch duct 112, the third branch duct 113 and the fourth branch duct 114 are communicated with the main duct 115, and the upper ends of the first branch duct 111, the second branch duct 112, the third branch duct 113 and the fourth branch duct 114 are inserted into different dropper bottle openings.
The infusion bottle is hung on the bracket through a hook, and a first branch conduit 111, a second branch conduit 112, a third branch conduit 113 and a fourth branch conduit 114 are respectively inserted into the mouth parts of different infusion bottles. When the device works, the liquid medicine flows into the branch conduit spliced with the working infusion bottle from the working infusion bottle and then flows into the main conduit 115; then enters the human body from the main catheter through the injection needle.
The locking device 200 shown in fig. 1, 2, 7, 8, 9 and 10 includes a plurality of control pins 210, a plurality of locking catches 220 and a mounting plate 230. The mounting disc 230 is fixed on the bracket, and a plurality of gaps 231 are formed on the outer ring of the mounting disc 230; a first pin hole 232 is formed in the left side of the gap 231, and a second pin hole 233 is formed in the right side of the gap 231; control pin 210 is inserted into first pin hole 232 of mounting plate 230, locking button 220 is installed in second pin hole 233 of mounting plate 230 by the first pin, and locking button 220 and notch 231 on mounting plate 230 enclose a conduit groove.
Preferably, the control pin includes a first cylinder 211, a second cylinder 212, and a third cylinder 213, the first cylinder 211 and the third cylinder 213 have a larger diameter than the second cylinder 212, and the second cylinder 212 is connected to the first cylinder 211 at an upper portion and to the third cylinder 212 at a lower portion. Two slide rails 214 are longitudinally arranged on the second cylinder 212 near the first cylinder 211, a first inclined plane 215 is formed near the third cylinder 213, and the two slide rails 214 can slide up and down along the first pin holes 232 of the mounting plate 230; a return spring 240 is disposed between the first cylindrical body 211 and the mounting plate 230, and the return spring 240 is fitted over the second cylindrical body 212.
Preferably, the locking catch 220 forms a second inclined surface 215 on the first side, the second inclined surface 215 cooperating with the first inclined surface 215 on the second cylinder of the control pin; a return torsion spring 250 is arranged between the locking buckle 220 and the mounting plate 230, and the return torsion spring 250 is sleeved on the first pin.
In a natural state, the first inclined surface 215 of the control pin is matched with the second inclined surface 221 of the locking buckle, and the reset torsion spring 250 is pre-stressed. The first cylinder 211 of the control pin is pressed downwards, the second inclined surface 221 of the locking buckle 220 is separated from the first inclined surface 215 under the pre-tightening force of the reset torsion spring 250, the locking buckle 220 rotates around the first pin and is opened outwards, and the guide pipe groove is opened. After the first branch pipe 111, the second branch pipe 112, the third branch pipe 113 and the fourth branch pipe 114 are respectively placed into different pipe grooves, the locking buckle 220 is pushed inwards, and the second inclined surface 221 and the first inclined surface 215 are matched to enclose the branch pipes in the pipe grooves. When the branch guide pipe is taken out from the guide pipe groove, the control pin beside the branch guide pipe is pressed downwards.
Preferably, the first cylinder 211 and the third cylinder 213 have a larger diameter than the second cylinder 212, so that the control pin 210 is effectively prevented from being disengaged from the first pin hole; the two sliding rails 214 provided on the second cylinder 212 not only can guide precisely, but also can prevent the control pin 210 from rotating in the first pin hole.
The sequence control apparatus 300 shown in fig. 1, 2, 4, 5, 6, 7, 8 and 11 includes a rotation block 310, a slider 320, a push rod 330 and a motor 340. The sliding block 320 is in a long strip shape and comprises a first sliding block head 321 and a second sliding block head 322, the first sliding block head 321 is provided with a third pin hole, and the second sliding block head 322 is provided with a fourth pin hole. The rotating block 310 includes a first ring 311 and a second ring 312, a circle of sliding grooves 313 for the sliding of the sliding block 320 is formed on the outer circumferential surface of the first ring 311, and the second ring 312 is fixedly connected with the first ring 311. The second head 322 of the sliding block is hinged with the first head 331 of the push rod through a second pin, and the sliding block 320 controls the push rod 330 to rotate up and down; the push rod 330 controls the conduction or the closing of the branch conduit; a motor 340 for driving the rotation block 310 to rotate is fixed to the mounting plate 230.
Preferably, the inner circular surfaces of the first circular ring 311 and the second circular ring 312 of the rotating block 310 are rotatably connected with the bracket; a circle of sliding grooves 313 for the sliding of the sliding block 320 are formed on the outer circular surface of the first circular ring 311; the section of the sliding groove 313 is similar to a T shape, and the sliding groove 313 is downward formed into a V shape at one position on the outer circular surface of the first circular ring 311; a worm wheel is in interference fit with the outer circular surface of the second circular ring 312 of the rotating block 310, and the worm wheel is in transmission connection with the motor 340 through a worm. A first rectangular through groove 234 for the push rod 330 to move back and forth is formed in the gap 231 of the mounting plate, and a second rectangular groove 235 is formed between the first rectangular through groove 234 and the guide pipe groove.
Preferably, a through slot for assembling the sliding block 320 is formed in the middle of the first head 331 of the push rod; the first head 331 of the push rod is connected with the second head 322 of the slide block through a second pin, the second head 332 of the push rod is installed in the second rectangular groove 235 of the mounting plate through a third pin, and the third pin can slide along the second rectangular groove 235. The plurality of sub-ducts of the upper half of the integrated duct 110 are merged at the lower portion of the mounting plate 230 through the duct grooves to communicate with the main duct 115; the second head 332 of the push rod is pressed against the surface of the branch conduit to control the conduction or the closing of the branch conduit. In operation, only one of the branch ducts is in communication with the main duct, and the other branch ducts are closed in the duct grooves by the push rods 330.
As shown in fig. 12 and 13, the motor 340 is started to drive the worm to rotate, the worm drives the worm wheel to rotate, and the worm wheel drives the rotating block 310 to rotate as the worm wheel is fixed on the second ring 312 of the rotating block; the sliding block 320 slides in the sliding slot 313 of the rotating block; when the sliding block 320 slides to the lowest V-shaped position of the sliding groove 313, the motor 340 stops, the first head 331 of the push rod moves downwards under the action of the sliding block 320 to drive the third pin in the second head 332 of the push rod to move along the second rectangular groove 235 to the side far away from the guide pipe, the branch guide pipe is opened, the branch guide pipe opposite to the V-shaped position is communicated with the main guide pipe 115, the push rods corresponding to other guide pipes are in a horizontal state because the push rods are not at the lowest V-shaped position of the sliding groove 313, and the branch guide pipes are jacked by the push rods and are closed in the guide pipe grooves. When the liquid medicine in the drip bottle connected with the conducted branch conduit is used up, the control panel controls the motor 340 to continue rotating to drive the V-shaped part of the chute to rotate and drive the push rod to close the branch conduit below the used-up liquid medicine drip bottle; conducting a branch conduit below the next drip bottle, and continuing the drip; sequentially ending the dripping until all the liquid medicines in the dripping bottles are used up; the whole process is carried out according to the sequence of the controller without pulling the needle and changing the medicine bottle midway.
In the working process, the drip bottle containing the liquid medicine is hung on the bracket, and the first branch conduit 111, the second branch conduit 112, the third branch conduit 113 and the fourth branch conduit 114 are respectively inserted into different drip bottle mouths; each branch conduit passes through different conduit grooves and is converged below the mounting plate 230 to be connected with the main conduit 115, at the moment, the push rods 330 respectively support the first branch conduit 111, the second branch conduit 112, the third branch conduit 113 and the fourth branch conduit 114, the branch conduits are in a closed state, and the liquid medicine cannot flow down. When a start button is pressed down, the motor 340 is started to drive the sliding groove 313 on the rotating block to rotate in a V shape; when the V-shaped movement is aligned with the first branch pipe 111, the motor stops, the push rod 330 at the first branch pipe 111 is pulled, the first branch pipe 111 is conducted, the liquid medicine in the dropping bottle connected with the first branch pipe 111 flows into the human body, and when the liquid medicine in the dropping bottle flows out, the control panel controls the motor 340 to continue rotating; when the V-shape of the sliding groove 313 on the rotating block is opposite to the second branch conduit 112, the motor 340 is stopped, the first branch conduit 111 is closed by the push rod 330, the push rod 330 at the second branch conduit 112 is pulled, the second branch conduit 112 is conducted, and the liquid medicine in the dropping bottle connected with the second branch conduit 112 flows into the human body. This is done until all of the bottle contents have been filled.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (7)
1. Repeatedly usable's bit sequence controller, including the support, its characterized in that: the bracket is sequentially provided with an injection device, a locking device and a sequence control device from top to bottom;
the injection device comprises a plurality of drip bottles and an integrated conduit, wherein the plurality of drip bottles are suspended on a bracket; the integrated conduit comprises a main conduit and a plurality of branch conduits, the lower end of each branch conduit is communicated with the main conduit, and the upper end of each branch conduit is inserted into the mouth of the infusion bottle;
the locking device comprises a plurality of control pins, a plurality of locking buckles and a mounting disc; the mounting disc is fixed on the support, a plurality of notches are formed in the outer ring of the mounting disc, a first pin hole is formed in the left side of each notch, and a second pin hole is formed in the right side of each notch; the control pin is inserted into a first pin hole of the mounting disc, the locking buckle is mounted in a second pin hole of the mounting disc through the first pin, and the locking buckle and a notch on the mounting disc surround a conduit groove;
the sequence control device comprises a rotating block, a sliding block, a push rod and a motor; the sliding block is in a long strip shape and comprises a first head part and a second head part, the first head part of the sliding block is provided with a third pin hole, and the second head part of the sliding block is provided with a fourth pin hole; the rotating block comprises a first circular ring and a second circular ring, a circle of sliding grooves for sliding the sliding block are formed in the outer circular surface of the first circular ring, and the second circular ring is fixedly connected with the first circular ring; the second head of the sliding block is hinged with the first head of the push rod through a second pin, the sliding block controls the push rod to rotate up and down, and the push rod controls the branch guide pipe to be switched on or switched off; a motor for driving the rotating block to rotate is fixed on the mounting disc;
the inner circular surfaces of the first circular ring and the second circular ring of the rotating block are rotatably connected with the bracket; a circle of sliding grooves for sliding the sliding blocks are formed in the outer circular surface of the first circular ring; the section of the chute is approximately T-shaped, and the chute is downwards formed into a V shape at one position on the outer circular surface of the first circular ring;
a first rectangular through groove for the push rod to move back and forth is formed in the notch of the mounting plate, and a second rectangular groove is formed between the first rectangular through groove and the guide pipe groove;
a through groove for assembling the sliding block is formed in the middle of the first head of the push rod; the first head of the push rod is connected with the second head of the sliding block through a second pin, the second head of the push rod is installed in a second rectangular groove of the installation disc through a third pin, and the third pin can slide along the second rectangular groove.
2. The reusable drip sequence controller of claim 1, wherein: the integrated conduit comprises a plurality of branch conduits on the upper half part, and the plurality of branch conduits are converged on the lower half part and communicated with the main conduit.
3. The reusable drip sequence controller of claim 1, wherein: the control pin comprises a first cylinder, a second cylinder and a third cylinder, the diameters of the first cylinder and the third cylinder are larger than those of the second cylinder, the upper part of the second cylinder is connected with the first cylinder, and the lower part of the second cylinder is connected with the third cylinder;
two sliding rails are longitudinally arranged on the second cylinder and close to the first cylinder, a first inclined plane is formed on the second cylinder and close to the third cylinder, and the two sliding rails can slide up and down along the first pin hole of the mounting disc; and a return spring is arranged between the first cylinder and the mounting disc and sleeved on the second cylinder.
4. The reusable drip sequence controller of claim 1, wherein: the locking buckle forms a second inclined surface on the first side surface, and the second inclined surface is matched with the first inclined surface on the second cylinder of the control pin for locking; and a reset torsion spring is arranged between the locking buckle and the mounting plate and sleeved on the first pin.
5. The reusable drip sequence controller of claim 1, wherein: and a worm wheel is in interference fit with the outer circular surface of the second circular ring of the rotating block and is in transmission connection with the motor through a worm.
6. The reusable drip sequence controller of claim 2, wherein: a plurality of branch ducts on the upper half part of the integrated duct pass through the duct grooves and are converged at the lower part of the mounting disc to be communicated with the main duct; the second head of the push rod is pressed against the surface of the branch conduit to control the closing or the conduction of the branch conduit.
7. The reusable drip sequence controller of claim 6, wherein: when the integrated guide pipe works, only one of the branch guide pipes is communicated with the main guide pipe at the lower half part, and other branch guide pipes are closed in the guide pipe grooves by the push rods.
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| CN201810759101.5A CN109224195B (en) | 2018-07-11 | 2018-07-11 | Reusable drip sequence controller |
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| CN201810759101.5A CN109224195B (en) | 2018-07-11 | 2018-07-11 | Reusable drip sequence controller |
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| US4625494A (en) * | 1983-04-28 | 1986-12-02 | Pfrimmer & Co. Pharmazeutische Werke Erlangen | Method and apparatus for making mixtures of pharmaceutical liquids |
| US4559036A (en) * | 1983-12-14 | 1985-12-17 | Wunsch Richard E | Apparatus for controlling administration of multiple intravenous solutions and medications |
| JP2874724B2 (en) * | 1994-06-16 | 1999-03-24 | 株式会社ジェイ・エム・エス | Tube clamp and automatic peritoneal dialysis device using the same |
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|---|---|
| CN109224195A (en) | 2019-01-18 |
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