CN115317726B - Double-channel injector for choked flow type operating room - Google Patents
Double-channel injector for choked flow type operating room Download PDFInfo
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- CN115317726B CN115317726B CN202210837957.6A CN202210837957A CN115317726B CN 115317726 B CN115317726 B CN 115317726B CN 202210837957 A CN202210837957 A CN 202210837957A CN 115317726 B CN115317726 B CN 115317726B
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- 238000012377 drug delivery Methods 0.000 claims abstract description 96
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 239000003814 drug Substances 0.000 claims abstract description 42
- 238000002347 injection Methods 0.000 claims abstract description 42
- 239000007924 injection Substances 0.000 claims abstract description 42
- 230000000903 blocking effect Effects 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 62
- 230000005540 biological transmission Effects 0.000 claims description 42
- 239000002184 metal Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000000712 assembly Effects 0.000 description 13
- 238000000429 assembly Methods 0.000 description 13
- 239000007788 liquid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229940079593 drug Drugs 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000001802 infusion Methods 0.000 description 3
- 230000009347 mechanical transmission Effects 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 238000001647 drug administration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 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
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M5/2066—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically comprising means for injection of two or more media, e.g. by mixing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3295—Multiple needle devices, e.g. a plurality of needles arranged coaxially or in parallel
- A61M5/3298—Needles arranged in parallel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
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 invention discloses a flow-blocking type double-channel injector for an operating room, which comprises a single-channel flow-blocking type double-channel puncture mechanism, a clutch double-control type driving drug delivery mechanism, a double-channel drug delivery mechanism and a mechanical control drug delivery assembly. The invention belongs to the technical field of electric injection devices, and particularly relates to a double-channel injector for a choked flow type operating room; the invention provides a single-flow-passage flow-blocking type double-channel puncture mechanism, wherein a rigid slope limiting table and an elastic shrinkage blocking ring which can slide are arranged between a puncture inner pipe and a puncture outer pipe, and the inner pipe flexible part of the puncture inner pipe is extruded and blocked by the self shrinkage trend of the elastic shrinkage blocking ring, so that the two flow passages can not be penetrated at the same time during working; the invention also provides a clutch double-control type driving drug delivery mechanism, which not only can precisely control the drug delivery amount in a mechanical driving mode, but also can keep the locking state of another group of injection components when one medicament is injected, thereby reducing errors possibly caused by manual operation.
Description
Technical Field
The invention belongs to the technical field of electric injection devices, and particularly relates to a double-channel injector for a choked flow type operating room.
Background
In different phases of clinical surgery, it is often necessary to inject different medicaments into the patient (most of the cases where two mutually matched medicaments are injected cyclically and alternately), so that some injection devices with two channels and two flow channels are presented on the market.
These injection devices are generally simple in structure and often suffer from the following problems:
a: when one medicament is injected, the other medicament remained in the tube is more during remote administration, so that the medicament is easy to flow out naturally uncontrolled, and the fluctuation of the dosage is difficult to control;
b: when injecting one medicament, it is difficult to ensure that the syringe of the other medicament remains stationary, typically requiring another operator or another hand to operate;
c: the flow paths of a typical dual channel syringe are independent and separate from each other, often requiring penetration of two sites.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides an integrated single-channel flow-blocking and backflow-preventing dual-channel injector for a flow-blocking operating room, which can be operated by one hand; in order to overcome the technical problem that one medicament is not controlled when the other medicament is injected, the invention creatively provides a single-flow-passage flow-blocking type double-channel puncture mechanism based on a self-service principle, a rigid slope limiting table and an elastic shrinkage stop ring which can slide mutually are arranged between a puncture inner tube and a puncture outer tube, and the flexible part of the inner tube of the puncture inner tube is extruded and blocked by the self-shrinkage trend of the elastic shrinkage stop ring sliding off from the rigid slope limiting table, so that two flow passages cannot be penetrated simultaneously (only one flow passage is penetrated simultaneously) during working, and the accuracy of remote medicament delivery is greatly improved; in addition, in order to simplify the structure and reduce the cost, the invention also provides a clutch double-control type driving drug delivery mechanism, and two groups of injection assemblies are respectively driven in a sliding clutch mode through a group of driving units, so that the drug delivery amount can be accurately controlled in a mechanical driving mode, the locking state of the other group of injection assemblies can be maintained when one medicament is injected, and errors possibly caused by manual operation are reduced.
The technical scheme adopted by the invention is as follows: the invention provides a double-channel injector for a flow-resistant operating room, which comprises a single-channel flow-resistant double-channel puncture mechanism, a clutch double-control type driving drug delivery mechanism, a double-channel drug delivery mechanism and a mechanical control drug delivery assembly, wherein the single-channel flow-resistant double-channel puncture mechanism is arranged at the tail end of the double-channel drug delivery mechanism, the technical aim that one channel can be automatically closed when being opened in the double-channel puncture process can be fulfilled by the single-channel flow-resistant double-channel puncture mechanism, the double-channel drug delivery mechanism is arranged on the clutch double-control type driving drug delivery mechanism, the double-channel and double-medium long-distance delivery is performed by the double-channel drug delivery mechanism, and the mechanical control drug delivery assembly is arranged on the double-channel drug delivery mechanism; the injection assembly can be pressed in a mechanical transmission mode (rather than manpower) through the mechanical control dosing assembly and the clutch double-control type driving dosing mechanism, on one hand, the dosing accuracy can be improved, on the other hand, a group of motors can be used for driving two groups of injection assemblies, when one group of injection assemblies are driven, the other group of injection assemblies are in a locking state, and the mechanical control dosing assemblies are symmetrically provided with two groups.
Further, the single-channel flow blocking type double-channel puncture mechanism comprises a double-channel puncture assembly and a single-channel flow blocking assembly, wherein the double-channel puncture assembly is arranged at the tail end of the double-channel drug delivery mechanism, and the single-channel flow blocking assembly is arranged in the double-channel puncture assembly.
Preferably, the binary channels puncture subassembly includes puncture inner tube, puncture outer tube and puncture syringe needle, the puncture inner tube is located on the binary channels drug delivery mechanism, the puncture outer tube is located on the binary channels drug delivery mechanism, be equipped with the flexible portion of inner tube on the interlude of puncture inner tube, be equipped with syringe needle connection port, syringe needle portion of holding and syringe needle metal puncture portion on the puncture syringe needle in proper order, the puncture syringe needle passes through syringe needle connection port and puncture outer tube rigid coupling, the puncture syringe needle is equipped with the syringe needle intermediate baffle in the middle of syringe needle portion of holding and syringe needle metal puncture portion, and the syringe needle intermediate baffle separates into two independent spaces with the puncture syringe needle, can independent control after pricking into the human body and administer, prevents that two medicines from mixing in advance or sagging each other, the tip of syringe needle intermediate baffle is equipped with the tip baffle, the puncture syringe needle is equipped with tip baffle hole on the tip baffle, the syringe needle block is located in the tip baffle hole, carries out the shutoff to two spaces that the tip intermediate baffle separated through the tip, guarantees that the inside and the outside of inner tube puncture can flow into two different spaces of the syringe needle of puncture respectively.
The utility model also discloses a single-flow-passage choke subassembly includes that rigidity slope limit table, elasticity shrink keep off the ring, keep off stop ring reset spring and inner and outer circle support frame, on the puncture inner tube was located to rigidity slope limit table block, elasticity shrink keeps off the ring and slides and locate on the slope face of rigidity slope limit table, can extrude the inner tube flexible part through the shrink of self when elasticity shrink keeps off the ring and slides on the inner tube flexible part, shutoff to prevent the inside liquid medicine's of puncture inner tube flow, can prevent to remain the liquid medicine natural flow in puncture inner tube and carrying the inner tube, influence accuracy of dosing, inner and outer circle support frame block locates between puncture inner tube and the puncture outer tube, be equipped with support frame portion on the inner and outer circle support frame, can support between puncture inner tube and puncture outer tube through the inner and outer circle support frame to and carry between outer tube and carry, prevent that infusion pipeline from blockking up, on the inner and outer circle support frame is located to keep off stop ring reset spring's one end, can provide continuous elasticity through inner and outer circle support frame, with the elasticity that the inner and outer circle support frame can provide when keeping off the liquid and stop between puncture and automatic time between puncture and puncture stop ring reset ring rigidity shrink clearance between the puncture outer tube and the puncture.
Further, the clutch double-control type drug delivery driving mechanism comprises a sliding guide supporting component and a sliding engagement driving component, and the sliding engagement driving component is arranged on the sliding guide supporting component; the sliding guide support assembly comprises a main body bottom plate, a door type limiting frame and a sliding locking frame, wherein the door type limiting frame is symmetrically arranged on the main body bottom plate, a sliding limiting table is symmetrically arranged on the door type limiting frame, a limiting frame center round hole is further formed in the door type limiting frame, the sliding locking frame is clamped and slides to be arranged in the sliding limiting table, a locking frame center round table is arranged on the sliding locking frame, a locking frame round position avoiding hole and a locking frame half waist-shaped position avoiding hole are symmetrically formed in two sides of the locking frame center round table, when a polygonal locking boss is located in the locking frame round position avoiding hole, the sliding locking frame cannot limit rotation of a transmission nut, when the polygonal locking boss is located in the locking frame half waist-shaped position avoiding hole, the transmission nut cannot rotate again, a group of transmission nuts which are not driven cannot rotate through the sliding locking frame, the phenomenon that a cross rod piston and a lifting pressing table automatically descend under the action of gravity is avoided, and the phenomenon that blood or tissue fluid flows back is avoided.
Preferably, the sliding engagement driving assembly comprises a drug delivery driving motor, a drug delivery driving gear and a control handle, wherein the drug delivery driving motor is clamped on a round table in the center of the locking frame, the drug delivery driving gear is clamped on an output shaft of the drug delivery driving motor, the control handle is arranged on the sliding locking frame, a motor control button is arranged on the control handle, the motor control button is electrically connected with the drug delivery driving motor, the control handle is pushed to slide along the sliding locking frame, the rotation angle of the drug delivery driving motor can be controlled through the motor control button, and the rotation angle of the drug delivery driving gear corresponds to the feeding amount of injection, so that the output shaft of the drug delivery driving motor can be controlled to rotate by a certain angle for operation by pressing the motor control button every time.
Further, the double-channel medicine delivery mechanism comprises a medicine delivery pipe joint assembly and a long-distance conveying assembly, wherein the medicine delivery pipe joint assembly is arranged on the main body bottom plate, and the long-distance conveying assembly is arranged in the medicine delivery pipe joint assembly; the drug delivery pipe joint assembly comprises an end outer pipe and an end inner pipe, wherein the end outer pipe is arranged on the main body bottom plate, an outer pipe joint is arranged at one end of the end outer pipe, an outer pipe round hole is formed in the other end of the end outer pipe, the end inner pipe is located in the end outer pipe, an inner pipe joint is arranged on the end inner pipe, and the inner pipe joint is clamped in the outer pipe round hole.
Preferably, the long-distance conveying assembly comprises a conveying outer pipe and a conveying inner pipe, the conveying outer pipe is clamped in the end outer pipe, the conveying inner pipe is clamped in the end inner pipe, the conveying outer pipe and the conveying inner pipe are supported and fixed through an inner ring supporting frame and an outer ring supporting frame, the penetrating inner pipe is arranged at the end of the conveying inner pipe, and the penetrating outer pipe is arranged at the end of the conveying outer pipe.
Further, the mechanical control dosing assembly comprises an injection assembly and a mechanical pressing assembly, wherein the injection assembly is symmetrically provided with two groups, the injection assembly is respectively arranged in the outer pipe joint and the inner pipe joint, and the mechanical pressing assembly is slidably arranged on the injection assembly.
Preferably, the injection assembly comprises a square injector and a cross rod piston, the square injector is provided with an injector connector, the square injector is respectively clamped in the outer pipe connector and the inner pipe connector through the injector connector, the cross rod piston is clamped and slidingly arranged in the square injector, and the cross rod piston is provided with a piston rod pressing part.
The mechanical pressing assembly comprises a lifting pressing table, a transmission screw rod and a transmission nut, wherein the lifting pressing table is provided with a square sliding sleeve of the pressing table, the lifting pressing table is arranged on the square injector in a clamping sliding manner through the square sliding sleeve of the pressing table, the lifting pressing table is provided with a cantilever pressing part of the pressing table, the cantilever pressing part of the pressing table and the pressing part of a piston rod are fixedly connected, the lifting pressing table is also provided with a cantilever, the transmission screw rod is fixedly connected to the cantilever, the transmission nut is in threaded connection with the transmission screw rod, the transmission nut is rotationally arranged in a central round hole of a limiting frame, the transmission nut is provided with a nut gear layer, the nut gear layer is meshed with a drug delivery driving gear, the transmission nut is also provided with a polygonal stop boss, the polygonal stop boss is arranged in a locking frame half waist-shaped position avoiding hole in a clamping sliding manner, the number of the nut gear layer is an integral multiple of the edge number of the polygonal stop boss, and the motor control button controls the angle of each rotation of an output shaft of a drug delivery driving motor and the corresponding waist-shaped stop boss in a smooth and waist-shaped stop line side-shaped stop line, and the locking frame side-shaped stop line of the polygonal stop boss in each time is convenient to coincide with the polygonal position-stop boss in each time.
The beneficial effects obtained by the invention by adopting the structure are as follows:
(1) The technical purpose that one flow passage can be automatically closed when the other flow passage is opened in the process of double-passage puncture can be realized through the single-flow passage flow blocking type double-passage puncture mechanism;
(2) The drug delivery mechanism is driven by clutch double control, so that the drug delivery amount can be accurately controlled in a mechanical driving mode, the locking state of the other group of injection components can be maintained when one medicament is injected, and errors possibly caused by manual operation are reduced;
(3) The injection assembly can be pressed in a mechanical transmission mode (rather than manual force) through the mechanical control of the injection assembly and the clutch double-control driving of the injection mechanism, so that on one hand, the accuracy of the dosage can be improved, on the other hand, a group of motors can be used for driving two groups of injection assemblies, and when one group of injection assemblies is driven, the other group of injection assemblies is in a locking state;
(4) The middle baffle plate of the needle head divides the puncture needle head into two independent spaces, and can independently control the drug administration after being pricked into a human body, so that the two drugs are prevented from being mixed in advance or sagging with each other;
(5) The two spaces separated by the needle middle partition board are blocked from the end part through the needle end partition board, so that the liquid medicine flowing inside and outside the puncture inner pipe can flow into two different spaces of the puncture needle respectively;
(6) When the elastic shrinkage stop ring slides onto the inner tube flexible part, the inner tube flexible part can be extruded and blocked by self shrinkage, so that the flow of the liquid medicine in the puncture inner tube is prevented, and the liquid medicine remained in the puncture inner tube and the conveying inner tube can be prevented from naturally flowing down to influence the administration accuracy;
(7) The inner ring support frame and the outer ring support frame can support the puncture inner pipe and the puncture outer pipe and the conveying inner pipe, so that collapse and blockage of the infusion pipeline are prevented;
(8) The inner ring support frame and the outer ring support frame can provide continuous elastic force, and when no liquid flows between the puncture inner pipe and the puncture outer pipe, the elastic shrinkage stop ring is automatically pushed back to reset, so that a gap between the rigid slope limit table and the puncture outer pipe is blocked;
(9) When the polygonal stop boss is positioned in the circular avoidance hole of the locking frame, the sliding locking frame cannot limit the rotation of the transmission nut, when the polygonal stop boss is positioned in the semi-waist-shaped avoidance hole of the locking frame, the transmission nut cannot rotate any more, and the limit of the transmission nut by the sliding locking frame can ensure that a group of transmission nuts which are not driven cannot rotate, so that the phenomenon that the cross rod piston and the lifting pressing table automatically descend under the action of gravity and the phenomenon that blood or tissue fluid flows back due to overlarge pressure is avoided;
(10) The rotation angle of the drug delivery driving motor can be controlled through the motor control button by pushing the control handle to slide with the sliding locking frame, and the rotation angle of the drug delivery driving gear corresponds to the feeding amount of injection, so that the output shaft of the drug delivery driving motor can be controlled to rotate for a certain angle to operate by pressing the motor control button once;
(11) The motor control button controls the angle of each rotation of the output shaft of the drug delivery driving motor to correspond to the edge number of the polygonal stop lug boss, so that the edge line direction of the polygonal stop lug boss can coincide with the edge line of the half waist-shaped avoidance hole of the locking frame when the drug delivery driving motor stops each time, and the polygonal stop lug boss can slide in the half waist-shaped avoidance hole of the locking frame smoothly.
Drawings
FIG. 1 is a perspective view of a dual channel syringe for a choked flow operating room according to the present invention;
FIG. 2 is a front view of a dual channel syringe for a choked flow operating room according to the present invention;
FIG. 3 is a top view of a dual channel syringe for a choked flow operating room according to the present invention;
FIG. 4 is a cross-sectional view taken along section line A-A of FIG. 2;
FIG. 5 is a cross-sectional view taken along section line B-B in FIG. 3;
FIG. 6 is a schematic diagram of a single-flow-channel flow-blocking dual-channel puncture mechanism of a dual-channel injector for a flow-blocking operating room according to the present invention;
FIG. 7 is a schematic diagram of a dual clutch control type drug delivery mechanism of a dual channel syringe for a choked flow type operating room according to the present invention;
FIG. 8 is a schematic diagram of a dual-channel drug delivery mechanism of a dual-channel injector for a choked flow operating room according to the present invention;
FIG. 9 is a schematic diagram of a mechanical control dosing assembly of a dual-channel syringe for use in a choked flow operating room according to the present invention;
FIG. 10 is an enlarged view of a portion of the portion I of FIG. 4;
FIG. 11 is an enlarged view of a portion of the portion II of FIG. 5;
FIG. 12 is an enlarged view of a portion of III in FIG. 5;
FIG. 13 is an enlarged view of a portion of the portion IV of FIG. 5;
fig. 14 is a partial enlarged view at v in fig. 3.
Wherein, 1, a single-flow-passage flow-blocking type double-passage puncture mechanism, 2, a clutch double-control type drive drug delivery mechanism, 3, a double-passage drug delivery mechanism, 4, a mechanical control drug delivery assembly, 5, a double-passage puncture assembly, 6, a single-flow-passage flow-blocking assembly, 7, a puncture inner tube, 8, a puncture outer tube, 9, a puncture needle, 10, a rigid slope limiting table, 11, an elastic shrinkage stop ring, 12, a stop ring return spring, 13, an inner and outer ring support frame, 14, an inner tube flexible part, 15, a needle connecting port, 16, a needle holding part, 17, a needle metal puncture part, 18, a needle middle baffle plate, 19, a needle end baffle plate hole, 20, an end baffle plate hole, 21, a support frame part, 22, a sliding guide support assembly, 23, a sliding engagement driving assembly, 24, a main body bottom plate, 25, a gate type limiting frame, 26, a sliding locking frame, 27 and a drug delivery driving motor, 28, administration driving gear, 29, control handle, 30, sliding limit table, 31, limit frame center round hole, 32, lock frame center round table, 33, lock frame round avoidance hole, 34, lock frame half kidney avoidance hole, 35, motor control button, 36, administration tube joint assembly, 37, long distance delivery assembly, 38, end outer tube, 39, end inner tube, 40, delivery outer tube, 41, delivery inner tube, 42, outer tube joint, 43, outer tube round hole, 44, inner tube joint, 45, injection assembly, 46, mechanical pressing assembly, 47, square injector, 48, cross rod piston, 49, lifting pressing table, 50, transmission screw rod, 51, transmission nut, 52, injector joint, 53, piston rod pressing part, 54, pressing table square sliding sleeve, 55, pressing table cantilever pressing part, 56, cantilever table, 57, nut gear layer, 58, polygonal stop boss.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientation or positional relationships based on those shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As shown in fig. 1, the invention provides a dual-channel injector for a choked flow type operating room, which comprises a single-channel choked flow type dual-channel puncture mechanism 1, a clutch dual-control type driving drug delivery mechanism 2, a dual-channel drug delivery mechanism 3 and a mechanical control drug delivery assembly 4, wherein the single-channel choked flow type dual-channel puncture mechanism 1 is arranged at the tail end of the dual-channel drug delivery mechanism 3, the technical aim that one channel can be automatically closed when being opened in the dual-channel puncture process can be realized through the single-channel choked flow type dual-channel puncture mechanism 1, the dual-channel drug delivery mechanism 3 is arranged on the clutch dual-control type driving drug delivery mechanism 2, the dual-channel dual-medium remote delivery is carried out through the dual-channel drug delivery mechanism 3, and the mechanical control drug delivery assembly 4 is arranged on the dual-channel drug delivery mechanism 3; the injection assembly 45 can be pressed in a mechanical transmission mode (rather than manual force) through the mechanical control dosing assembly 4 and the clutch double-control type driving dosing mechanism 2, on one hand, the dosing accuracy can be improved, on the other hand, a group of motors can be used for driving two groups of injection assemblies 45, when one group of injection assemblies 45 are driven, the other group of injection assemblies 45 are in a locking state, and two groups of mechanical control dosing assemblies 4 are symmetrically arranged.
As shown in fig. 1, 2, 3, 4, 7, 10 and 14, the clutch double-control type drug delivery mechanism 2 comprises a sliding guide support assembly 22 and a sliding engagement driving assembly 23, wherein the sliding engagement driving assembly 23 is arranged on the sliding guide support assembly 22; the sliding guide support assembly 22 comprises a main body bottom plate 24, a door-type limiting frame 25 and a sliding locking frame 26, wherein the door-type limiting frame 25 is symmetrically arranged on the main body bottom plate 24, a sliding limiting table 30 is symmetrically arranged on the door-type limiting frame 25, a limiting frame center round hole 31 is further arranged on the door-type limiting frame 25, the sliding locking frame 26 is clamped and slidably arranged in the sliding limiting table 30, a locking frame center round table 32 is arranged on the sliding locking frame 26, a locking frame round position avoidance hole 33 and a locking frame half waist-shaped position avoidance hole 34 are symmetrically arranged on two sides of the locking frame center round table 32 of the sliding locking frame 26, when a polygonal stop boss 58 is arranged in the locking frame round position avoidance hole 33, the sliding locking frame 26 cannot limit the rotation of a transmission nut 51, when the polygonal stop boss 58 is arranged in the locking frame half waist-shaped position avoidance hole 34, the transmission nut 51 cannot rotate any more, the transmission nut 51 cannot rotate through the limiting of the sliding locking frame 26, the phenomenon that a cross rod piston 48 and the lifting automatic pressing table 49 can be prevented from falling under the action of gravity, and the phenomenon of blood reflux or blood reflux can be avoided; the sliding engagement driving assembly 23 comprises a drug delivery driving motor 27, a drug delivery driving gear 28 and a control handle 29, wherein the drug delivery driving motor 27 is clamped on a circular table 32 in the center of the locking frame, the drug delivery driving gear 28 is clamped on an output shaft of the drug delivery driving motor 27, the control handle 29 is arranged on the sliding locking frame 26, a motor control button 35 is arranged on the control handle 29, the motor control button 35 is electrically connected with the drug delivery driving motor 27, the control handle 29 is pushed to slide along with the sliding locking frame 26, the rotation angle of the drug delivery driving motor 27 can be controlled through the motor control button 35, and the rotation angle of the drug delivery driving gear 28 corresponds to the feeding amount of injection, so that the operation can be performed by controlling the rotation of the output shaft of the drug delivery driving motor 27 by a certain angle every time the motor control button 35 is pressed.
As shown in fig. 1, 5, 8 and 12, the dual-channel drug delivery mechanism 3 includes a drug delivery tube joint assembly 36 and a long-distance delivery assembly 37, the drug delivery tube joint assembly 36 is provided on the main body bottom plate 24, and the long-distance delivery assembly 37 is provided in the drug delivery tube joint assembly 36; the drug delivery tube joint assembly 36 comprises an end outer tube 38 and an end inner tube 39, wherein the end outer tube 38 is arranged on the main body bottom plate 24, one end of the end outer tube 38 is provided with an outer tube joint 42, the other end of the end outer tube 38 is provided with an outer tube round hole 43, the end inner tube 39 is arranged in the end outer tube 38, the end inner tube 39 is provided with an inner tube joint 44, and the inner tube joint 44 is clamped in the outer tube round hole 43; the long-distance conveying assembly 37 comprises an outer conveying pipe 40 and an inner conveying pipe 41, the outer conveying pipe 40 is clamped in the outer end pipe 38, the inner conveying pipe 41 is clamped in the inner end pipe 39, the outer conveying pipe 40 and the inner conveying pipe 41 are supported and fixed through the inner ring supporting frame 13, the inner penetrating pipe 7 is arranged at the end of the inner conveying pipe 41, and the outer penetrating pipe 8 is arranged at the end of the outer conveying pipe 40.
As shown in fig. 1, 2, 3, 6 and 13, the single-channel flow-blocking type double-channel puncture mechanism 1 comprises a double-channel puncture assembly 5 and a single-channel flow-blocking assembly 6, wherein the double-channel puncture assembly 5 is arranged at the tail end of the double-channel drug delivery mechanism 3, and the single-channel flow-blocking assembly 6 is arranged in the double-channel puncture assembly 5; the double-channel puncture assembly 5 comprises a puncture inner tube 7, a puncture outer tube 8 and a puncture needle 9, wherein the puncture inner tube 7 is arranged on the double-channel drug delivery mechanism 3, the puncture outer tube 8 is arranged on the double-channel drug delivery mechanism 3, an inner tube flexible part 14 is arranged on the middle section of the puncture inner tube 7, a needle connecting port 15, a needle holding part 16 and a needle metal puncture part 17 are sequentially arranged on the puncture needle 9, the puncture needle 9 is fixedly connected with the puncture outer tube 8 through the needle connecting port 15, a needle middle baffle 18 is arranged between the needle holding part 16 and the needle metal puncture part 17, the needle middle baffle 18 divides the puncture needle 9 into two independent spaces, drug administration can be independently controlled after the puncture inner tube is punctured into a human body, two drugs are prevented from being mixed in advance or sagging mutually, a needle end baffle 19 is arranged at the end part of the needle middle baffle 18, an end baffle hole 20 is arranged on the needle end baffle 9, the puncture inner tube 7 is clamped in the end baffle hole 20, two spaces separated from the needle middle baffle 18 by the end part through the needle end baffle 19, and the two spaces flowing inside and outside the puncture inner tube 7 can be ensured to flow into two different spaces of the puncture needle 9 respectively; the single-flow-passage flow-blocking assembly 6 comprises a rigid slope limiting table 10, an elastic shrinkage stop ring 11, a stop ring reset spring 12 and an inner ring support frame 13, wherein the rigid slope limiting table 10 is clamped on the puncture inner tube 7, the elastic shrinkage stop ring 11 is slidably arranged on the slope surface of the rigid slope limiting table 10, when the elastic shrinkage stop ring 11 slides onto the inner tube flexible part 14, the inner tube flexible part 14 can be extruded and blocked through self shrinkage, so that the flow of liquid medicine inside the puncture inner tube 7 is prevented, the liquid medicine remained in the puncture inner tube 7 and the conveying inner tube 41 can be prevented from naturally flowing down, the medicine feeding accuracy is influenced, the inner ring support frame 13 is clamped between the puncture inner tube 7 and the puncture outer tube 8, the inner ring support frame 13 is provided with a support frame hollowed-out part 21, the inner ring support frame 13 can be used for supporting between the puncture inner tube 7 and the puncture outer tube 8, and the conveying outer tube 40 and the conveying inner tube 41, the infusion tube is prevented from being blocked, one end of the stop ring reset spring 12 is arranged on the elastic shrinkage stop ring 11, the other end of the stop ring reset spring 12 is arranged on the inner ring support frame 13, the inner ring support frame 13 can be provided with elasticity through the inner ring 13, and the elastic force can be provided for automatically resetting the puncture inner tube 7 and the puncture outer tube 8, and the puncture outer tube 8 can be continuously reset, and the puncture outer tube 8 can not be continuously blocked by the elastic shrinkage stop ring 11, and the puncture stop ring 10 can be continuously and continuously reset, and the puncture clearance can be prevented from continuously, and kept between the puncture inner tube 8 and continuously, and the puncture tube can be continuously reset by the elastic stop ring and continuously and kept between the puncture tube.
As shown in fig. 1, 2, 9, 10 and 11, the mechanical control administration module 4 comprises an injection module 45 and a mechanical pressing module 46, wherein the injection module 45 is symmetrically provided with two groups, the injection module 45 is respectively arranged in the outer tube joint 42 and the inner tube joint 44, and the mechanical pressing module 46 is slidably arranged on the injection module 45; the injection assembly 45 comprises a square injector 47 and a cross rod piston 48, an injector connector 52 is arranged on the square injector 47, the square injector 47 is respectively clamped in the outer pipe connector 42 and the inner pipe connector 44 through the injector connector 52, the cross rod piston 48 is clamped and slidingly arranged in the square injector 47, and a piston rod pressing part 53 is arranged on the cross rod piston 48; the mechanical pressing assembly 46 comprises a lifting pressing table 49, a transmission screw rod 50 and a transmission nut 51, wherein the lifting pressing table 49 is provided with a pressing table square sliding sleeve 54, the lifting pressing table 49 is arranged on the square injector 47 in a clamping sliding manner through the pressing table square sliding sleeve 54, the lifting pressing table 49 is provided with a pressing table cantilever pressing part 55, the pressing table cantilever pressing part 55 and a piston rod pressing part 53 are fixedly connected, the lifting pressing table 49 is also provided with a cantilever platform 56, the transmission screw rod 50 is fixedly connected to the cantilever platform 56, the transmission nut 51 is in threaded connection with the transmission screw rod 50, the transmission nut 51 is rotationally arranged in a center round hole 31 of a limiting frame, the transmission nut 51 is provided with a nut gear layer 57, the nut gear layer 57 is in meshed connection with the drug delivery driving gear 28, the transmission nut 51 is also provided with a polygonal stop boss 58, the polygonal stop boss 58 is arranged in a clamping sliding manner in a locking frame half waist-shaped position avoiding hole 34, the number of the tooth number of the nut gear layer 57 is an integral multiple of the polygon stop 58, the motor control button 35 controls the rotation angle of an output shaft of the drug delivery driving motor 27 to be in each time, the corresponding side of the polygon stop boss 58 is ensured, the side stop line of the polygon stop line 26 can be smoothly coincident with the polygon stop side stop line 26 in each time, and the side stop line of the polygon stop half waist-shaped stop hole 34 can be smoothly stopped in each time, and the side stop line stop position of the polygon stop line is smoothly stopped, and the side stop line stop position stop 58 is stopped, and stop position stop line is stopped in the position, and stop position.
In particular, first, the user needs to fill the square syringe 47 with the medicament and pierce the needle metal piercing 17 into the patient's skin at the site where administration is desired;
then sliding the locking frame 26 toward the direction of the group of medicaments to be injected, wherein during sliding, a group of transmission nuts 51 close to the target medicament enter the circular avoidance holes 33 of the locking frame from the semi-waist-shaped avoidance holes 34 of the locking frame, the rotation limiting state is released, the other group of transmission nuts 51 keep the rotation limiting state, and after the administration driving gear 28 and the nut gear layer 57 on the side of the target medicament are meshed, the output shaft of the administration driving motor 27 is controlled to rotate through the motor control button 35, and then the administration driving gear 28 is driven to rotate through the transmission nuts 51;
the transmission nut 51 and the transmission screw rod 50 mutually drive when rotating, the lifting pressing table 49 is driven to descend through the descending of the transmission screw rod 50, and meanwhile, the cross rod piston 48 is compressed towards the square syringe 47 through the cantilever pressing part 55 of the pressing table, so that the medicament in the square syringe 47 is extruded into the puncture inner tube 7 or between the puncture inner tube 7 and the puncture outer tube 8;
if the medicament is delivered from the end inner tube 39 and the delivery inner tube 41, the medicament can directly enter the puncture needle 9 through the puncture inner tube 7 and then be injected into a human body;
when the medicine enters between the end outer tube 38 and the end inner tube 39 from the outer tube joint 42, the medicine pushes the elastic shrinkage stop ring 11 open when flowing through the single-flow-path choke assembly 6, and flows through a gap between the rigid slope limiting platform 10 and the puncture outer tube 8, once the elastic shrinkage stop ring 11 slips off the rigid slope limiting platform 10, the needle connecting port 15 can be pressed and blocked by self shrinkage, the medicine in the conveying inner tube 41 is prevented from flowing out uncontrollably, until after injection is stopped, the elastic shrinkage stop ring 11 is reset under the elastic force of the stop ring reset spring 12, and the gap between the rigid slope limiting platform 10 and the puncture outer tube 8 is blocked again.
The whole working flow of the invention is just the above, and the step is repeated when the invention is used next time.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (1)
1. A dual-channel injector for a choked flow operating room, which is characterized in that: the dual-channel drug delivery device comprises a single-channel flow-blocking dual-channel puncture mechanism (1), a clutch dual-control type driving drug delivery mechanism (2), a dual-channel drug delivery mechanism (3) and a mechanical control drug delivery assembly (4), wherein the single-channel flow-blocking dual-channel puncture mechanism (1) is arranged at the tail end of the dual-channel drug delivery mechanism (3), the dual-channel drug delivery mechanism (3) is arranged on the clutch dual-control type driving drug delivery mechanism (2), and the mechanical control drug delivery assembly (4) is arranged on the dual-channel drug delivery mechanism (3); the mechanical control dosing assembly (4) is symmetrically provided with two groups; the single-channel flow blocking type double-channel puncture mechanism (1) comprises a double-channel puncture assembly (5) and a single-channel flow blocking assembly (6), wherein the double-channel puncture assembly (5) is arranged at the tail end of the double-channel drug delivery mechanism (3), and the single-channel flow blocking assembly (6) is arranged in the double-channel puncture assembly (5); the double-channel puncture assembly (5) comprises a puncture inner tube (7), a puncture outer tube (8) and a puncture needle (9), wherein the puncture inner tube (7) is arranged on the double-channel drug delivery mechanism (3), the puncture outer tube (8) is arranged on the double-channel drug delivery mechanism (3), an inner tube flexible part (14) is arranged on the middle section of the puncture inner tube (7), a needle connecting port (15), a needle holding part (16) and a needle metal puncture part (17) are sequentially arranged on the puncture needle (9), the puncture needle (9) is fixedly connected with the puncture outer tube (8) through the needle connecting port (15), a needle middle partition plate (18) is arranged between the needle holding part (16) and the needle metal puncture part (17), a needle end partition plate (19) is arranged at the end part of the needle middle partition plate (18), an end partition plate hole (20) is arranged on the needle end partition plate (19), and the puncture inner tube (7) is clamped in the end partition plate hole (20);
the single-flow-passage flow blocking assembly (6) comprises a rigid slope limiting table (10), an elastic shrinkage stop ring (11), a stop ring reset spring (12) and an inner ring support frame (13), wherein the rigid slope limiting table (10) is clamped on a puncture inner tube (7), the elastic shrinkage stop ring (11) is slidably arranged on a slope surface of the rigid slope limiting table (10), the inner ring support frame (13) is clamped between the puncture inner tube (7) and the puncture outer tube (8), a support frame hollowed-out part (21) is arranged on the inner ring support frame (13), one end of the stop ring reset spring (12) is arranged on the elastic shrinkage stop ring (11), and the other end of the stop ring reset spring (12) is arranged on the inner ring support frame (13);
the clutch double-control type drug delivery driving mechanism (2) comprises a sliding guide supporting component (22) and a sliding engagement driving component (23), and the sliding engagement driving component (23) is arranged on the sliding guide supporting component (22); the sliding guide supporting assembly (22) comprises a main body bottom plate (24), a door-type limiting frame (25) and a sliding locking frame (26), wherein the door-type limiting frame (25) is symmetrically arranged on the main body bottom plate (24), sliding limiting tables (30) are symmetrically arranged on the door-type limiting frame (25), limiting frame center round holes (31) are further formed in the door-type limiting frame (25), the sliding locking frame (26) is clamped and slidingly arranged in the sliding limiting tables (30), a locking frame center round table (32) is arranged on the sliding locking frame (26), and locking frame round position avoiding holes (33) and locking frame half-waist-shaped position avoiding holes (34) are symmetrically formed in two sides of the locking frame center round table (32) on the sliding locking frame (26);
the sliding engagement driving assembly (23) comprises a drug delivery driving motor (27), a drug delivery driving gear (28) and a control handle (29), wherein the drug delivery driving motor (27) is clamped on a circular table (32) at the center of the locking frame, the drug delivery driving gear (28) is clamped on an output shaft of the drug delivery driving motor (27), the control handle (29) is arranged on the sliding locking frame (26), a motor control button (35) is arranged on the control handle (29), and the motor control button (35) is electrically connected with the drug delivery driving motor (27);
the double-channel medicine delivery mechanism (3) comprises a medicine delivery pipe joint assembly (36) and a long-distance conveying assembly (37), wherein the medicine delivery pipe joint assembly (36) is arranged on the main body bottom plate (24), and the long-distance conveying assembly (37) is arranged in the medicine delivery pipe joint assembly (36); the drug delivery pipe joint assembly (36) comprises an end outer pipe (38) and an end inner pipe (39), wherein the end outer pipe (38) is arranged on the main body bottom plate (24), one end of the end outer pipe (38) is provided with an outer pipe joint (42), the other end of the end outer pipe (38) is provided with an outer pipe round hole (43), the end inner pipe (39) is positioned in the end outer pipe (38), the end inner pipe (39) is provided with an inner pipe joint (44), and the inner pipe joint (44) is clamped in the outer pipe round hole (43);
the long-distance conveying assembly (37) comprises an outer conveying pipe (40) and an inner conveying pipe (41), the outer conveying pipe (40) is clamped in an outer end pipe (38), the inner conveying pipe (41) is clamped in an inner end pipe (39), the outer conveying pipe (40) and the inner conveying pipe (41) are supported and fixed through an inner ring supporting frame (13), the inner penetrating pipe (7) is arranged at the end part of the inner conveying pipe (41), and the outer penetrating pipe (8) is arranged at the end part of the outer conveying pipe (40);
the mechanical control dosing assembly (4) comprises an injection assembly (45) and a mechanical pressing assembly (46), wherein the injection assembly (45) is symmetrically provided with two groups, the injection assembly (45) is respectively arranged in the outer tube joint (42) and the inner tube joint (44), and the mechanical pressing assembly (46) is slidably arranged on the injection assembly (45); the injection assembly (45) comprises a square injector (47) and a cross rod piston (48), an injector joint (52) is arranged on the square injector (47), the square injector (47) is respectively clamped in the outer pipe joint (42) and the inner pipe joint (44) through the injector joint (52), the cross rod piston (48) is clamped and slidingly arranged in the square injector (47), and a piston rod pressing part (53) is arranged on the cross rod piston (48); the mechanical pressing component (46) comprises a lifting pressing table (49), a transmission screw rod (50) and a transmission nut (51), wherein a pressing table square sliding sleeve (54) is arranged on the lifting pressing table (49), the lifting pressing table (49) is clamped and slidingly arranged on the square injector (47) through the pressing table square sliding sleeve (54), the lifting pressing table (49) is provided with a pressing table cantilever pressing part (55), the pressing table cantilever pressing part (55) is fixedly connected with the piston rod pressing part (53), the lifting pressing table (49) is also provided with a cantilever table (56), the transmission screw rod (50) is fixedly connected on the cantilever table (56), the novel drug delivery device is characterized in that the transmission nut (51) is in threaded connection with the transmission screw rod (50), the transmission nut (51) is rotationally arranged in a center round hole (31) of the limiting frame, a nut gear layer (57) is arranged on the transmission nut (51), the nut gear layer (57) is in meshed connection with the drug delivery driving gear (28), a polygonal stop boss (58) is further arranged on the transmission nut (51), the polygonal stop boss (58) is clamped and slidingly arranged in a half waist-shaped avoidance hole (34) of the locking frame, and the number of teeth of the nut gear layer (57) is an integral multiple of the number of edges of the polygonal stop boss (58).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210837957.6A CN115317726B (en) | 2022-07-16 | 2022-07-16 | Double-channel injector for choked flow type operating room |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210837957.6A CN115317726B (en) | 2022-07-16 | 2022-07-16 | Double-channel injector for choked flow type operating room |
Publications (2)
| Publication Number | Publication Date |
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| CN115317726A CN115317726A (en) | 2022-11-11 |
| CN115317726B true CN115317726B (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210837957.6A Active CN115317726B (en) | 2022-07-16 | 2022-07-16 | Double-channel injector for choked flow type operating room |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2027183A6 (en) * | 1991-01-04 | 1992-05-16 | Aguilar Sanchez Jose Luis | Double-channel needle for surgical and similar purposes |
| CN1064621A (en) * | 1991-03-08 | 1992-09-23 | 哈伯利医用技术公司 | Multiple cartridge syringe |
| JPH1147274A (en) * | 1997-06-03 | 1999-02-23 | Takeda Chem Ind Ltd | Two-compartment-type syringe and connector for two compartment type syringe |
| CN210811401U (en) * | 2019-08-20 | 2020-06-23 | 重庆三峡医药高等专科学校 | Binary channels puncture connecting pipe |
| CN211244958U (en) * | 2019-11-04 | 2020-08-14 | 王晶 | Multi-tube injector |
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2022
- 2022-07-16 CN CN202210837957.6A patent/CN115317726B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2027183A6 (en) * | 1991-01-04 | 1992-05-16 | Aguilar Sanchez Jose Luis | Double-channel needle for surgical and similar purposes |
| CN1064621A (en) * | 1991-03-08 | 1992-09-23 | 哈伯利医用技术公司 | Multiple cartridge syringe |
| JPH1147274A (en) * | 1997-06-03 | 1999-02-23 | Takeda Chem Ind Ltd | Two-compartment-type syringe and connector for two compartment type syringe |
| CN210811401U (en) * | 2019-08-20 | 2020-06-23 | 重庆三峡医药高等专科学校 | Binary channels puncture connecting pipe |
| CN211244958U (en) * | 2019-11-04 | 2020-08-14 | 王晶 | Multi-tube injector |
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| Publication number | Publication date |
|---|---|
| CN115317726A (en) | 2022-11-11 |
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