CN116370746B - Adjustable transfusion device - Google Patents
Adjustable transfusion device Download PDFInfo
- Publication number
- CN116370746B CN116370746B CN202310420630.3A CN202310420630A CN116370746B CN 116370746 B CN116370746 B CN 116370746B CN 202310420630 A CN202310420630 A CN 202310420630A CN 116370746 B CN116370746 B CN 116370746B
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- Prior art keywords
- infusion
- plate
- infusion bag
- bag
- auxiliary plate
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- 238000001802 infusion Methods 0.000 claims abstract description 261
- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 238000001125 extrusion Methods 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims description 28
- 241001411320 Eriogonum inflatum Species 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000003814 drug Substances 0.000 description 27
- 229940079593 drug Drugs 0.000 description 8
- 230000003028 elevating effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 210000003462 vein Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002483 medication Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
-
- 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
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
- A61M2005/14506—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons mechanically driven, e.g. spring or clockwork
Landscapes
- 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)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The application provides an adjustable infusion device, which comprises an infusion pump, an infusion tube and an infusion bag; the infusion pump comprises a pump body, an elastic storage plate and two extrusion mechanisms, and the pump body comprises an infusion cavity; the object placing plate is arranged in the transfusion cavity, and the transfusion bag is arranged on the object placing plate; the extrusion mechanisms are arranged in the infusion cavity and symmetrically distributed on two sides of the object placing plate; each extrusion mechanism comprises a screw rod, a push plate, a lifting table and an auxiliary plate, wherein the auxiliary plate is slidably connected to the pump body; the lifting platform is slidably connected to the pump body, and the screw rod is rotatably connected to the lifting platform; the push plate is in threaded fit with the screw rod; the lifting platform is positioned at one side of the auxiliary plate far away from the object placing plate, the auxiliary plate comprises a clamping groove, and the push plate can pass through the clamping groove and is abutted to the object placing plate or the infusion bag; the push plates in the two extrusion mechanisms are staggered to press the infusion bag, and when the push plate in one extrusion mechanism is pressed on the surface of the infusion bag, the auxiliary plate in the other extrusion mechanism is pressed on the other surface of the infusion bag.
Description
Technical Field
The application relates to the technical field of infusion equipment, in particular to an adjustable infusion device.
Background
The medical infusion device generally comprises an infusion pump, an infusion tube and an infusion bag, wherein the infusion bag is placed inside the infusion pump; one end of the infusion tube is inserted into the infusion pump and is communicated with the infusion bag, and the other end of the infusion tube is injected into a vein of a patient.
The infusion pump is an instrument which is commonly used for strictly controlling the infusion amount and the dosage, and has the function of controlling the drop number or the flow rate of the medicine in the infusion tube, ensuring that the medicine speed is uniform, ensuring that the dosage accurately and safely enters the body of a patient to play a role, and the flow rate of the domestic infusion pump is basically within 2000ML/h at present.
The utility model provides a portable mechanical infusion pump of application number CN201710757585.5, it includes top cap and base, the bottom of top cap and the top threaded connection of base, the top of top cap is fixed to be equipped with accurate spring pressure device, the inside fixed mounting of accurate spring pressure device has spring, sleeve and backing bar, the top of top cap inner wall respectively with four folding support pole's top fixed connection. The infusion bag is characterized in that the infusion bag is provided with the folding support rod, the pressure plate, the spring, the sleeve and the fixing rod through the top cover, when the liquid medicine is injected into the infusion bag, the infusion bag can apply upward pressure to the pressure plate, then the folding support rod is stressed to squeeze the sleeve, the sleeve is stressed to squeeze the spring, when infusion is carried out, the pressure plate forms downward pressure under the elastic deformation effect of the spring, and then the infusion bag is extruded, so that the flow rate of the infusion bag can be controlled.
When the placement position of the infusion bag deviates from the central position of the infusion pump, the infusion bag is directly pressed by the pressure plate, which may cause that the pressure plate can only contact with a part of the infusion bag, so that the stress of the infusion bag is uneven. Therefore, when the infusion pump is used for long-time infusion, the accuracy of the flow rate of the infusion pump cannot be guaranteed, and the requirement of emergency infusion cannot be met.
Disclosure of Invention
The application provides an adjustable infusion device, which solves the technical problem that the flow speed precision of the existing infusion pump cannot be ensured during long-time infusion.
The application provides an adjustable infusion device which comprises an infusion pump, an infusion tube and an infusion bag; the infusion bag is arranged in the infusion pump, and one end of the infusion tube extends into the infusion pump and is communicated with the infusion bag; the infusion pump comprises a pump body, an elastic object placing plate and two extrusion mechanisms, wherein the pump body comprises an infusion cavity; the object placing plate is arranged in the transfusion cavity, and the transfusion bag is arranged on the object placing plate; the extrusion mechanisms are arranged in the infusion cavity and symmetrically distributed on the upper side and the lower side of the object placing plate; each extrusion mechanism comprises a screw rod, a push plate, a lifting table and an auxiliary plate, wherein the auxiliary plate is slidably connected to the inner wall of the pump body and can be abutted to the object placing plate or the infusion bag; the lifting table is slidably connected to the inner wall of the pump body, and the screw rod is rotatably connected to the lifting table; the push plate is in threaded fit with the screw rod, so that the push plate can move along the axial direction of the screw rod; the lifting platform is positioned at one side of the auxiliary plate far away from the object placing plate, the auxiliary plate comprises a clamping groove, the push plate can penetrate through the clamping groove and is abutted to the object placing plate or the infusion bag, and meanwhile, the screw rod can drive the push plate to move along the clamping groove; when the pushing plates in the two extrusion mechanisms are arranged in a staggered manner, and one surface of the infusion bag is arranged by the pushing plate in one extrusion mechanism, the auxiliary plate in the other extrusion mechanism is arranged on the other surface of the infusion bag in a pressed mode.
Optionally, the infusion pump further comprises two double-shaft air cylinders, wherein the double-shaft air cylinders are mounted on the inner wall of the pump body; the two extending shafts of each double-shaft air cylinder are respectively connected to the auxiliary plate, and the two double-shaft air cylinders are symmetrically arranged about the central shaft of the pump body.
Optionally, the pressing mechanism further includes at least two elastic members, the elastic members are arranged between the auxiliary plate and the lifting platform, one end of each elastic member is connected to the auxiliary plate, and the other end is connected to the lifting platform; the elastic pieces are arranged along the straight line direction of the two double-shaft air cylinders and are arranged at the edge of the auxiliary plate.
Optionally, the auxiliary plate comprises more than two arc-shaped protrusions, and the protrusions protrude out of the surface of the auxiliary plate and are arranged towards the infusion bag; the projections are punched from the cut portions of the auxiliary plate.
Optionally, the radius of curvature of the protrusion decreases in a direction from the end of the infusion bag to the liquid outlet thereof.
Optionally, the infusion pump further comprises two driving parts, wherein the driving parts are respectively mounted on the top wall and the bottom wall of the pump body, and the extending shafts of the two driving parts are respectively connected to the lifting table and used for pushing the lifting table to be close to or far away from the infusion bag.
Optionally, the infusion tube comprises a bottle stopper puncture outfit, a drip cup, a first hose and at least one second hose, wherein the bottle stopper puncture outfit is penetrated into the infusion cavity and is communicated with a liquid outlet of the infusion bag; the drip cup comprises a containing cavity and is communicated with the containing cavity; one end of the first hose is connected to the bottle stopper puncture outfit, and the other end of the first hose is connected to the drip cup; one end of the second hose is communicated with the first hose, and the other end of the second hose is provided with a clamping pipe for connecting other infusion tubes.
Optionally, the clamping tube comprises a tube body and a cover body, the tube body comprises a first end and a second end which are opposite, the first end is sleeved to the end part of the second hose, and the second end can be connected to other infusion tubes; the cover is detachably connected to the second end.
Optionally, the infusion bag is a multi-layer co-extrusion infusion soft bag.
Optionally, a graphene layer is attached to the surface of the auxiliary plate facing the infusion bag.
The application provides an adjustable infusion device, which utilizes the cooperation of a first extrusion mechanism and a second extrusion mechanism to enable push plates in the two extrusion mechanisms to be pressed on an infusion bag in a staggered way, so that an infusion pump can generate continuous pressure on the infusion bag. Because the push plates in the two extrusion mechanisms are all moved to the liquid outlet from the end parts of the infusion bags, in the process of moving along the reference direction, the two push plates can apply a continuous thrust to the infusion bags, so that the liquid medicine in the infusion bags can be pushed to the liquid outlet of the infusion bags, the flow speed and the precision requirements of long-time infusion can be ensured, and meanwhile, the liquid medicine in the infusion bags can be extruded according to a regular acting force, thereby avoiding medicine backflow.
The push plate and the auxiliary plate can be respectively pressed on the two surfaces of the infusion bag, so that the flow speed and the precision requirement of long-time infusion can be ensured, and when the push plate is pressed on the surface of the infusion bag to move, the whole medicine of the infusion bag shows the wave effect, so that the medicine is pushed to the liquid outlet of the infusion bag layer by layer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an adjustable infusion device according to the present application;
FIG. 2 is a cross-sectional view of a push plate of a first pressing mechanism in an adjustable infusion device provided by the application for pressing an infusion bag;
FIG. 3 is a cross-sectional view of a push plate of a second pressing mechanism in an adjustable infusion device provided by the application for pressing an infusion bag;
FIG. 4 is a view showing the structure of an auxiliary plate in the adjustable infusion device provided by the application;
FIG. 5 is a schematic view of a push plate in an adjustable infusion device according to the present application;
fig. 6 is a cross-sectional view of a bayonet tube in an adjustable infusion set provided by the application.
Reference numerals illustrate:
100. an infusion pump; 110. an infusion cavity; 200. a storage plate; 300. a lifting table; 310. a driving member; 320. a screw rod; 330. a push plate; 400. an auxiliary plate; 410. a biaxial cylinder; 420. a clamping groove; 421. a first tank body; 422. a second tank body; 423. a third tank; 430. a protrusion; 500. an elastic member; 600. an infusion tube; 610. a bottle stopper puncture outfit; 620. dropping a kettle; 630. a first hose; 640. a second hose; 700. a clamping pipe; 710. a tube body; 711. a first end; 712. a second end; 720. a cover body; 800. an infusion bag; 810. and a liquid outlet.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the application. In the present application, unless otherwise indicated, terms of orientation such as "upper", "lower", "left" and "right" are generally used to refer to the directions of the upper, lower, left and right sides of the device in actual use or operation, and are specifically shown in the drawings.
The present application provides an adjustable infusion device, which is described in detail below. It should be noted that the following description order of the embodiments is not intended to limit the preferred order of the embodiments of the present application. In the following embodiments, the descriptions of the embodiments are focused on, and for the part that is not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
Referring to fig. 1-3, the present application provides an adjustable infusion device, which includes an infusion pump 100, an infusion tube 600 and an infusion bag 800; infusion bag 800 is placed within infusion pump 100, and one end of infusion tube 600 extends into infusion pump 100 and communicates to infusion bag 800; the other end of the infusion tube 600 is injected into a vein of the patient. The infusion pump 100 is used to control the number of drops or flow rate of the drug in the infusion tube 600, ensure a relatively uniform rate of drug, and allow the drug to enter the patient for proper and safe delivery.
The infusion bag 800 is a multilayer co-extrusion infusion soft bag, and compared with a glass bottle, a plastic bottle and a PVC soft bag, the multilayer co-extrusion film infusion soft bag has the advantages of good film heat sealability, suitability for various filling equipment, good elasticity, falling resistance, high temperature resistance, sterilization at 121 ℃, good light transmittance, convenient clarity inspection, biochemical inertia of the film, good barrier property to water vapor, oxygen and nitrogen, no toxicity, small adsorptivity, soft product and the like.
Referring to fig. 1 and 2, the infusion pump 100 includes a pump body, a sealing door, and an elastic storage plate 200, wherein the pump body is concaved to form an infusion cavity 110, and the infusion bag 800 is disposed in the infusion cavity 110. One side of the sealing door is hinged to the side wall of the pump body, so that the infusion cavity 110 can be closed by the sealing door.
Referring to fig. 2, the placement plate 200 is disposed within the infusion chamber 110, and the infusion bag 800 is placed on the placement plate 200. The side edges of the storage plate 200 are respectively connected to the inner side walls of the pump body, so as to fix the storage plate 200 relative to the infusion pump 100. The storage board 200 has a certain elastic deformation property, so that the infusion bag 800 can be more fully attached to the surface of the storage board 200. Meanwhile, when a pressure is applied to the placement plate 200, the placement plate 200 having elasticity can transmit a force to the infusion bag 800 and can be pressed in synchronization with the infusion bag 800.
Referring to fig. 2 and 3, the infusion pump 100 further includes two squeezing mechanisms, which are disposed in the infusion cavity 110 and can be symmetrically disposed on the upper side and the lower side of the object placement plate 200, so that the two squeezing mechanisms can apply pressure to the upper surface and the lower surface of the infusion bag 800 respectively, thereby accurately controlling the output flow rate of the infusion pump 100 and the accuracy during long-time infusion.
Referring to fig. 2 and 3, each pressing mechanism includes a screw 320, a push plate 330, a lifting table 300, an auxiliary plate 400, and a servo motor, wherein the lifting table 300 is slidably connected to an inner wall of the pump body, so that the lifting table 300 can be moved close to or away from the infusion bag 800, i.e., the lifting table 300 can be moved in a height direction of the pump body in the present application. The servo motor is fixedly arranged on the lifting table 300 through a fastening screw, wherein a rotating shaft of the servo motor is connected to one end of the screw rod 320 for driving the screw rod 320 to rotate. The lead screw 320 is rotatably connected to the elevating platform 300 through a bearing structure such that the lead screw 320 can rotate with respect to the elevating platform 300. The push plate 330 is sleeved on the side wall of the screw rod 320 and is in threaded fit with the screw rod 320, and when the screw rod 320 is driven to rotate by the servo motor, the push plate 330 can move along the axial direction of the screw rod 320 based on the threaded structure of the push plate 330 and the screw rod 320.
The direction from the bottom of the infusion bag 800 to the liquid outlet 810 is defined as a reference direction, and the central axis of the screw 320 is parallel to the reference direction. Since the two squeezing mechanisms are symmetrically arranged at two sides of the infusion bag 800, the squeezing mechanism above the infusion bag 800 is defined as a first squeezing mechanism, and the squeezing mechanism below the infusion bag 800 is defined as a second squeezing mechanism. Because the screw rod 320 is rotatably disposed on the lifting platform 300, and the push plate 330 is screwed on the screw rod 320, the push plate 330 can be driven to approach or separate from the infusion bag 800 by the lifting platform 300 capable of moving along the height direction of the pump body. Meanwhile, the pushing plate 330 in the first extrusion mechanism can be pressed to the upper surface of the infusion bag 800, and the pushing plate 330 in the second extrusion mechanism can be indirectly pressed to the lower surface of the infusion bag 800 through the object placing plate 200.
Referring to fig. 2 and 3, the infusion pump 100 further includes two driving members 310, wherein the driving members 310 are respectively mounted on the top wall and the bottom wall of the pump body, and the protruding shafts of the driving members 310 are respectively connected to two lifting platforms 300 positioned on the upper and lower sides of the infusion bag 800, and in the present application, the driving members 310 are preferably cylinders or linear motors, so that the lifting platforms 300 can be pushed to approach or separate from the infusion bag 800 by using the driving members 310.
Referring to fig. 2 and 3, the auxiliary plate 400 is slidably coupled to the inner wall of the pump body such that the end of the auxiliary plate 400 can be abutted to the storage plate 200 or the infusion bag 800; that is, the bottom end of the auxiliary plate 400 in the first pressing mechanism can be pressed against the upper surface of the infusion bag 800, and the top end of the auxiliary plate 400 in the second pressing mechanism can be indirectly abutted against the lower surface of the infusion bag 800 through the placement plate 200.
Referring to fig. 2-5, the lifting platform 300 is located on a side of the auxiliary plate 400 away from the object placing plate 200, the auxiliary plate 400 includes a slot 420 opened along a reference direction, and an end portion of the pushing plate 330 can pass through the slot 420, so that the end portion can be abutted to the object placing plate 200 or the infusion bag 800. In the present application, the cross section of the push plate 330 along the axial direction of the screw rod 320 is inverted T-shaped, so that the clamping groove 420 is formed in an "i" shape. The clamping groove 420 of the present application includes a first groove 421, a second groove 422, and a third groove 423, wherein the central axis of the first groove 421 is parallel to the central axis of the third groove 423, and is perpendicular to the central axis of the second groove 422, and the central axis of the second groove 422 is arranged along the reference direction. The push plate 330 can pass through the auxiliary plate 400 from the first groove 421 so that the end of the push plate 330 is abutted to the infusion bag 800 or the object placing plate 200, and then the push plate 330 is driven to move along the opening direction of the second groove 422 by the screw 320, and can pass through the auxiliary plate 400 from the third groove 423 so that the end of the push plate 330 is separated from the infusion bag 800 or the object placing plate 200.
Referring to fig. 2 and 3, the pushing plates 330 of two pressing mechanisms can be alternatively pressed to form the infusion bag 800, and when the pushing plate 330 of one pressing mechanism is pressed to form one surface of the infusion bag 800, the auxiliary plate 400 of the other pressing mechanism is pressed to form the other surface of the infusion bag 800.
When the push plate 330 of the first pressing mechanism is pressed against the upper surface of the infusion bag 800, the auxiliary plate 400 of the first pressing mechanism is separated from the infusion bag 800 by a distance; meanwhile, the auxiliary plate 400 in the second pressing mechanism can be indirectly pressed against the lower surface of the infusion bag 800 through the object placing plate 200, and the push plate 330 in the second pressing mechanism is separated from the infusion bag 800 by a distance. Similarly, when the push plate 330 of the second pressing mechanism is pressed to the lower surface of the infusion bag 800 by the placement plate 200, the auxiliary plate 400 of the second pressing mechanism is separated from the infusion bag 800 by a distance, while the auxiliary plate 400 of the first pressing mechanism is pressed to the upper surface of the infusion bag 800, and the push plate 330 of the first pressing mechanism is separated from the infusion bag 800 by a distance.
Referring to fig. 2 and 3, the infusion pump 100 further includes two double-shaft cylinders 410, each of which is mounted to an inner wall of the pump body. Wherein, the housing of each biaxial cylinder 410 is fixed to the inner side wall of the pump body, the two protruding shafts thereof are respectively connected to the two auxiliary plates 400, and the two biaxial cylinders 410 are symmetrically disposed about the central axis of the pump body in the height direction. The two double-shaft cylinders 410 are embedded in the side walls of the pump body and are respectively positioned at two opposite sides of the object placing plate 200, and since the two auxiliary plates 400 are respectively positioned at the upper and lower sides of the infusion bag 800, the two protruding shafts of one double-shaft cylinder 410 are respectively connected to the same side of the two auxiliary plates 400, while the protruding shaft of the other double-shaft cylinder 410 is respectively connected to the other side of the two auxiliary plates 400. The protruding shafts of the two-shaft cylinders 410 can move synchronously, so that the two ends of the auxiliary plates 400 can move synchronously, and the auxiliary plates 400 can move in a translational manner in the process of moving the two auxiliary plates 400 along the height direction of the pump body, so that the pressure can be applied to the infusion bag 800 more uniformly when the two auxiliary plates 400 act on the infusion bag 800.
Referring to fig. 2 and 3, each pressing mechanism further includes at least two elastic members 500, and the elastic members 500 are arranged between the auxiliary plate 400 and the lifting platform 300. One end of each elastic member 500 is connected to the auxiliary plate 400, and the other end thereof is connected to the elevating table 300; the elastic member 500 is preferably a coil spring in the present application.
The elevating platform 300 and the auxiliary plate 400 can be assisted to be reset by the elastic member 500 provided between the auxiliary plate 400 and the elevating platform 300, and at the same time, when the push plate 330 applies a pressure to the infusion bag 800, the elastic member 500 can absorb a part of the impact force, so that the push plate 330 and the auxiliary plate 400 in another pressing mechanism can be respectively pressed to both sides of the infusion bag 800. In addition, since the two sides of the auxiliary plate 400 are respectively connected with the protruding shafts of the biaxial cylinders 410, the thrust of the protruding shafts is mainly concentrated at the end of the auxiliary plate 400, resulting in less force being applied to other positions of the auxiliary plate 400, so that a thrust can be applied to other positions of the auxiliary plate 400 by the elastic member 500, so that the auxiliary plate 400 can be more sufficiently attached to the infusion bag 800 and pressure can be uniformly applied to the infusion bag 800.
Referring to fig. 2 and 3, the elastic members 500 are arranged along a straight line direction (i.e., a reference direction) in which the two biaxial cylinders 410 are located, and are disposed at the edge of the auxiliary plate 400. The elastic member 500 applies a uniform pushing force to the side of the auxiliary plate 400, so that the edge of the auxiliary plate 400 can be better pressed against the infusion bag 800, and the pressure can be uniformly applied to the infusion bag 800, and interference with the push plate 330 can be avoided.
Referring to fig. 2-4, each auxiliary plate 400 includes more than two arc-shaped protrusions 430, and the protrusions 430 protrude from the surface of the auxiliary plate 400 and are disposed towards the infusion bag 800; the protrusion 430 is punched from the cut portion of the auxiliary plate 400, which not only ensures the strength of the auxiliary plate 400 and reduces the processing difficulty and cost, but also allows the protrusion 430 to have a certain elastic deformation property, thereby absorbing a part of the impact force applied to the infusion bag 800 by the push plate 330. In addition, the arc-shaped protrusions 430 can increase the friction force between the auxiliary plate 400 and the infusion bag 800, so that the push plate 330 does not deviate or dislocate in the process of acting on the infusion bag 800, thereby ensuring accurate infusion flow rate and long-time infusion accuracy requirements.
Referring to fig. 2-4, the radius of curvature of the protrusion 430 gradually decreases in the direction from the end of the infusion bag 800 to its outlet 810 (i.e., the reference direction). After the push plate 330 is pressed to the infusion bag 800, the screw rod 320 drives the push plate 330 to move along the reference direction, and the movement of the push plate 330 can be better matched by utilizing the protrusion 430 with gradually reduced curvature radius, so that the liquid medicine at the end part of the infusion bag 800 is driven to the liquid outlet 810 more.
Referring to fig. 2 and 3, a graphene layer is attached to a surface of the auxiliary plate 400 facing the infusion bag 800 to perform a thermal insulation function on the infusion bag 800, so as to prevent the temperature of the liquid medicine in the infusion bag 800 from being too low, thereby affecting comfort of a patient or affecting dissolution of the liquid medicine in the infusion bag 800.
Referring to fig. 1 and 6, the infusion tube 600 includes a bottle stopper penetrator 610, an air filter, a drip cup 620, a flow rate regulator, a liquid medicine filter, an infusion hose, a vein needle, a needle head cap, a first hose 630 and at least two second hoses 640, wherein the bottle stopper penetrator 610, the air filter, the drip cup 620, the flow rate regulator, the liquid medicine filter, the vein needle and the needle head cap are sequentially connected through the infusion hose. Since one end of the first hose 630 is connected to the bottle stopper penetrator 610 and the other end thereof is connected to the drip cup 620, the infusion hose between the bottle stopper penetrator 610 and the drip cup 620 is the first hose 630.
Referring to fig. 1 and 2, the end of the bottle stopper puncture outfit 610 can be inserted into the infusion cavity 110 and correspondingly inserted into the liquid outlet 810 of the infusion bag 800, so that the infusion tube 600 is communicated with the infusion bag 800. Drip chamber 620 is a hollow cylindrical structure, and drip chamber 620 includes a receiving cavity for receiving a drug, and the receiving cavity is connected to stopper piercer 610, so that the drug solution in infusion bag 800 can be collected into the receiving cavity through the infusion hose for being inputted into the vein of the patient.
Referring to fig. 1 and 6, one end of each second hose 640 is connected to the first hose 630, and the other end thereof is provided with a clamping tube 700 for connecting with other infusion tubes 600, so that the liquid medicine in other infusion tubes 600 can be gathered into the accommodating cavity through the second hose 640 and the first hose 630, thereby realizing simultaneous input of different medicines.
Referring to fig. 6, the fastening tube 700 includes a tube body 710 and a cover body 720, wherein the tube body 710 includes a first end 711 and a second end 712 opposite to each other, and the first end 711 is sleeved on an end of the second hose 640, so that the fastening tube 700 is relatively fixed to the second hose 640; and the second end 712 can be connected to other infusion tubes 600 such that the clip tube 700 is relatively fixed to other infusion tubes 600; communication of the second hose 640 with other infusion tubes 600 can thus be achieved with the bayonet 700 to facilitate simultaneous infusion of different medications.
Referring to fig. 6, the cover 720 is detachably connected to the second end 712 of the bayonet 700 to seal the bayonet 700, so that the end of the second hose 640 is isolated from the outside air, thereby preventing infection. When multiple medications need to be administered simultaneously, the cap 720 is separated from the bayonet 700, and then the other infusion tubes 600 are inserted into the second ends 712 of the bayonet 700.
Referring to fig. 1-6, the infusion bag 800 is placed on the storage board 200 in the infusion cavity 110, and the driving member 310 in the first pressing mechanism pushes the lifting platform 300 to descend, so that the auxiliary board 400 can pass through the first slot 421 of the slot 420 and be pressed against the upper surface of the infusion bag 800. And the auxiliary plate 400 in the second pressing mechanism is driven by the biaxial air cylinder 410 so that the auxiliary plate 400 can be indirectly pressed to the lower surface of the infusion bag 800 through the placement plate 200. The screw 320 in the first pressing mechanism drives the push plate 330 to move along the axial direction thereof, so that the push plate 330 can be pressed from the end of the infusion bag 800 to the liquid outlet 810 thereof.
When the push plate 330 in the first extrusion mechanism moves to the liquid outlet 810 of the infusion bag 800, the driving member 310 in the first extrusion mechanism drives the lifting platform 300 to lift, so as to drive the push plate 330 to pass out of the third groove body 423 of the clamping groove 420. The biaxial cylinder 410 drives the auxiliary plate 400 in the second pressing mechanism to descend so that the push plate 330 in the first pressing mechanism and the auxiliary plate 400 in the second pressing mechanism are both separated from the surface of the infusion bag 800. Meanwhile, the driving member 310 in the second pressing mechanism pushes the lifting table 300 to rise, so that the auxiliary plate 400 in the second pressing mechanism can pass through the first groove 421 of the clamping groove 420 and be indirectly pressed to the lower surface of the infusion bag 800 through the placement plate 200. And the auxiliary plate 400 in the first pressing mechanism is driven by the biaxial cylinder 410 such that the auxiliary plate 400 is pressed to the upper surface of the infusion bag 800.
When the screw rod 320 in the second extrusion mechanism drives the push plate 330 to move along the opening direction of the second groove 422, the screw rod 320 in the first extrusion mechanism reversely rotates, so as to drive the push plate 330 to reversely move along the reference direction, and the push plate 330 can move above the first groove 421. When the screw rod 320 in the second pressing mechanism drives the push plate 330 to move to the liquid outlet 810 of the infusion bag 800 along the axial direction thereof, the screw rod 320 in the first pressing mechanism reversely drives the push plate 330 to move to the initial position.
Referring to fig. 1-6, the push plate 330 of the two pressing mechanisms can be pressed onto the infusion bag 800 in a staggered manner by using the cooperation of the first pressing mechanism and the second pressing mechanism, so that the infusion pump 100 can generate continuous pressure on the infusion bag 800. Because the push plates 330 in the two extrusion mechanisms move from the end parts of the infusion bag 800 to the liquid outlets 810, in the process of moving along the reference direction, the two push plates 330 can apply a continuous thrust to the infusion bag 800, so that the liquid medicine in the infusion bag 800 can be pushed to the liquid outlets 810, the flow speed and the precision requirements of long-time infusion can be ensured, and meanwhile, the liquid medicine in the infusion bag 800 can be extruded according to a regular acting force, thereby avoiding the backflow of the medicine.
The push plate 330 and the auxiliary plate 400 can be respectively pressed on two surfaces of the infusion bag 800, so that the flow speed and the precision requirement of long-time infusion can be ensured, and meanwhile, when the push plate 330 presses the surface of the infusion bag 800 to move, the whole medicine of the infusion bag 800 shows a wave effect, so that the medicine is pushed to the liquid outlet 810 of the infusion bag 800 layer by layer.
The foregoing has outlined rather broadly the more detailed description of the application in order that the detailed description of the principles and embodiments of the application may be had by way of example only, the illustrations of the above examples being intended to facilitate the understanding of the method and core concepts of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (8)
1. An adjustable infusion device is characterized by comprising an infusion pump, an infusion tube and an infusion bag; the infusion bag is arranged in the infusion pump, and one end of the infusion tube extends into the infusion pump and is communicated with the infusion bag;
the infusion pump includes:
the pump body comprises an infusion cavity;
an elastic object placing plate which is arranged in the transfusion cavity, and the transfusion bag is arranged on the object placing plate; and
the two extrusion mechanisms are arranged in the transfusion cavity and symmetrically distributed on the upper side and the lower side of the object placing plate;
each extrusion mechanism comprises a screw rod, a push plate, a lifting table and an auxiliary plate, wherein the auxiliary plate is slidably connected to the inner wall of the pump body and can be abutted to the object placing plate or the infusion bag; the lifting table is slidably connected to the inner wall of the pump body, and the screw rod is rotatably connected to the lifting table; the push plate is in threaded fit with the screw rod, so that the push plate can move along the axial direction of the screw rod; the lifting platform is positioned at one side of the auxiliary plate far away from the object placing plate, the auxiliary plate comprises a clamping groove, the push plate can penetrate through the clamping groove and is abutted to the object placing plate or the infusion bag, and meanwhile, the screw rod can drive the push plate to move along the clamping groove; the auxiliary plate comprises more than two arc-shaped bulges which protrude out of the surface of the auxiliary plate and are arranged towards the infusion bag; the protrusion is punched by a cut portion of the auxiliary plate; the curvature radius of the bulge is reduced along the direction from the end part of the infusion bag to the liquid outlet of the infusion bag;
when the pushing plates in the two extrusion mechanisms are arranged in a staggered manner, and one surface of the infusion bag is arranged by the pushing plate in one extrusion mechanism, the auxiliary plate in the other extrusion mechanism is arranged on the other surface of the infusion bag in a pressed mode.
2. The adjustable infusion device of claim 1, wherein the infusion pump further comprises:
two double-shaft cylinders mounted to the inner wall of the pump body;
the two extending shafts of each double-shaft air cylinder are respectively connected to the two auxiliary plates, and the two double-shaft air cylinders are symmetrically arranged about the central shaft of the pump body.
3. The adjustable infusion device of claim 2, wherein the compression mechanism further comprises:
at least two elastic pieces arranged between the auxiliary plate and the lifting platform, wherein one end of each elastic piece is connected to the auxiliary plate, and the other end is connected to the lifting platform;
the elastic pieces are arranged along the straight line direction of the two double-shaft air cylinders and are arranged at the edge of the auxiliary plate.
4. The adjustable infusion device of claim 1, wherein the infusion pump further comprises:
and the two driving parts are respectively arranged on the top wall and the bottom wall of the pump body, and the extending shafts of the two driving parts are respectively connected to the lifting table and used for pushing the lifting table to be close to or far away from the infusion bag.
5. The adjustable infusion device of claim 1, wherein the infusion tube comprises:
the bottle stopper puncture outfit is penetrated into the infusion cavity and communicated with the liquid outlet of the infusion bag;
the drip cup comprises a containing cavity and is communicated with the containing cavity;
a first hose having one end connected to the bottle stopper penetrator and the other end connected to the drip cup; and
at least one second hose, its one end intercommunication is to first hose, and its other end is equipped with the joint pipe for connect other transfer lines.
6. The adjustable infusion device of claim 5, wherein the bayonet tube comprises:
a tube body including opposite first and second ends, the first end being sleeved to an end of the second hose, the second end being connectable to other infusion tubes; and
and a cover detachably connected to the second end.
7. The adjustable infusion device of claim 1, wherein the infusion bag is a multi-layer co-extruded infusion flexible bag.
8. The adjustable infusion device of claim 1, wherein a graphene layer is attached to a surface of the auxiliary plate facing the infusion bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310420630.3A CN116370746B (en) | 2023-04-19 | 2023-04-19 | Adjustable transfusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310420630.3A CN116370746B (en) | 2023-04-19 | 2023-04-19 | Adjustable transfusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116370746A CN116370746A (en) | 2023-07-04 |
| CN116370746B true CN116370746B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310420630.3A Active CN116370746B (en) | 2023-04-19 | 2023-04-19 | Adjustable transfusion device |
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| Country | Link |
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| CN (1) | CN116370746B (en) |
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|---|---|---|---|---|
| KR20050030180A (en) * | 2005-02-15 | 2005-03-29 | 이남준 | Portable handy iniection ringer apparatus |
| CN201271406Y (en) * | 2008-10-08 | 2009-07-15 | 曹虹娉 | Portable extrusion device for infusion and blood transfusion |
| CN112023179A (en) * | 2020-08-27 | 2020-12-04 | 漳州市梵凯科技有限公司 | Extrusion type infusion machine |
| KR20210138258A (en) * | 2020-05-12 | 2021-11-19 | 서강대학교산학협력단 | Apparatus for injecting ringer |
| CN215134806U (en) * | 2021-07-13 | 2021-12-14 | 中国人民解放军联勤保障部队第九六〇医院 | Portable infusion pump for battlefield rescue |
| CN217311401U (en) * | 2021-06-22 | 2022-08-30 | 武汉大学 | Automatic pressurizing device for infusion bag |
-
2023
- 2023-04-19 CN CN202310420630.3A patent/CN116370746B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050030180A (en) * | 2005-02-15 | 2005-03-29 | 이남준 | Portable handy iniection ringer apparatus |
| CN201271406Y (en) * | 2008-10-08 | 2009-07-15 | 曹虹娉 | Portable extrusion device for infusion and blood transfusion |
| KR20210138258A (en) * | 2020-05-12 | 2021-11-19 | 서강대학교산학협력단 | Apparatus for injecting ringer |
| CN112023179A (en) * | 2020-08-27 | 2020-12-04 | 漳州市梵凯科技有限公司 | Extrusion type infusion machine |
| CN217311401U (en) * | 2021-06-22 | 2022-08-30 | 武汉大学 | Automatic pressurizing device for infusion bag |
| CN215134806U (en) * | 2021-07-13 | 2021-12-14 | 中国人民解放军联勤保障部队第九六〇医院 | Portable infusion pump for battlefield rescue |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116370746A (en) | 2023-07-04 |
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