CN115317726A

CN115317726A - Choked flow type double-channel syringe for operating room

Info

Publication number: CN115317726A
Application number: CN202210837957.6A
Authority: CN
Inventors: 伍忠东; 陈志杰; 许琴
Original assignee: Jiangxi Zhuoreihua Medical Equipment Co ltd
Current assignee: Jiangxi Zhuoreihua Medical Equipment Co ltd
Priority date: 2022-07-16
Filing date: 2022-07-16
Publication date: 2022-11-11
Anticipated expiration: 2042-07-16
Also published as: CN115317726B

Abstract

The invention discloses a dual-channel injector for a flow-blocking operating room, which comprises a single-channel flow-blocking dual-channel puncture mechanism, a clutch dual-control type driving drug delivery mechanism, a dual-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 dual-channel injector for a choked flow type operating room; the invention provides a single-runner flow-resisting type double-channel puncture mechanism, wherein a rigid slope limiting table and an elastic contraction 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 contraction trend of the elastic contraction stop ring, so that two runners cannot be communicated simultaneously during work; the invention also provides a clutch double-control type driving dosing mechanism which not only can accurately control the dosing amount in a mechanical driving mode, but also can keep the locking state of another group of injection assemblies when one medicament is injected, and reduces errors possibly caused by manual operation.

Description

Choked flow type double-channel syringe for operating room

Technical Field

The invention belongs to the technical field of electric injection devices, and particularly relates to a dual-channel injector for a choked flow type operating room.

Background

In different stages of clinical operation, different medicaments are often required to be injected into a patient (in many cases, two medicaments matched with each other are injected in a cycle and alternation), so that some injection devices with double channels and double flow paths appear 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 in remote administration, so that the other medicament easily flows out uncontrollably and naturally, and the administration amount fluctuates difficultly;

b: when one medicament is injected, it is difficult to ensure that the other medicament injector remains stationary, generally requiring another operator or hand to operate;

c: the flow paths of a common double-channel injector are independent and separated from each other, and two parts are often required to be punctured.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides an integrated dual-channel injector for the flow-resisting operating room, which has a single channel and can resist flow and backflow and can be operated by one hand; in order to overcome the technical problem that another medicament is not controlled when one medicament is injected, the invention creatively provides a single-channel flow-resisting 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 channels cannot be communicated simultaneously (only one flow channel is communicated simultaneously) during the work, and the precision of remote administration is greatly improved; moreover, in order to simplify the structure and reduce the cost, the invention also provides a clutch double-control type driving dosing mechanism, two groups of injection assemblies are respectively driven in a sliding clutch mode through one group of driving units, the dosing quantity can be accurately controlled in a mechanical driving mode, the locking state of the other group of injection assemblies can be kept 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-resisting operating room, which comprises a single-channel flow-resisting 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 component, wherein the single-channel flow-resisting double-channel puncture mechanism is arranged at the tail end of the double-channel drug delivery mechanism; through the double control formula drive mechanism of dosing of mechanical control subassembly and separation and reunion, can press the injection subassembly with mechanical transmission's mode (rather than the manpower), can improve the accuracy of dosage on the one hand, on the other hand can also use two sets of injection subassemblies of a set of motor drive to when a set of injection subassembly is driven, another group injection subassembly is in the locking state, the mechanical control subassembly of dosing symmetry is equipped with two sets ofly.

Furthermore, single-channel choked flow type binary channels puncture mechanism includes binary channels puncture component and single-channel choked flow subassembly, binary channels puncture component locates the terminal of binary channels drug delivery mechanism, single-channel choked flow subassembly is located in the binary channels puncture component.

As preferred, binary channels puncture subassembly is including puncture inner tube, puncture outer tube and puncture syringe needle, the puncture inner tube is located on the binary channels medicine conveying mechanism, the puncture outer tube is located on the binary channels medicine conveying mechanism, be equipped with inner tube flexible portion 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 syringe needle intermediate bottom in the middle of syringe needle portion of holding and syringe needle metal puncture portion, and syringe needle intermediate bottom separates into two independent spaces with the puncture syringe needle, can independent control after pricking the human body and dose, prevents that two kinds of medicines from mixing in advance or hanging each other, syringe needle intermediate bottom's tip is equipped with syringe needle tip baffle, the puncture syringe needle is equipped with tip baffle hole on the syringe needle tip baffle, in the puncture inner tube block is located tip baffle hole, seals up through two spaces that syringe needle tip baffle partition plate separates from the tip, guarantees that the inside of puncture inner tube and the liquid medicine that the outside flows can flow respectively flow in two different spaces of puncture syringe needle.

The scheme also discloses a single-channel flow blocking assembly which comprises a rigid slope limiting table, an elastic shrinkage stopping ring, a stopping ring reset spring and inner and outer ring supporting frames, wherein the rigid slope limiting table is clamped on the puncture inner tube, the elastic shrinkage stopping ring is arranged on the slope surface of the rigid slope limiting table in a sliding mode, when the elastic shrinkage stopping ring slides to the flexible part of the inner tube, the flexible part of the inner tube can be extruded and blocked through self shrinkage, so that the flowing of liquid medicine in the puncture inner tube is stopped, the liquid medicine remained in the puncture inner tube and the delivery inner tube can be prevented from naturally flowing down and affecting the administration accuracy, the inner and outer ring supporting frames are clamped between the puncture inner tube and the puncture outer tube, the hollow parts of the supporting frames are arranged on the inner and outer ring supporting frames, the inner and outer tube can be supported between the puncture inner tube and the puncture outer tube and between the delivery outer tube to prevent the infusion tube from collapsing, one end of the stopping ring reset spring is arranged on the elastic shrinkage stopping ring reset stopping ring, the other end of the stopping ring reset spring is arranged on the inner and outer ring supporting frames, and the clearance between the rigid slope limiting table can be provided with continuous elasticity, and liquid can be automatically pushed back to block the puncture outer tube when no liquid flows between the puncture inner tube and the puncture inner tube.

Furthermore, the clutch double-control type driving dosing 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 supporting assembly comprises a main body bottom plate, a door-type limiting frame and a sliding locking frame, the door-type limiting frame is symmetrically arranged on the main body bottom plate, sliding limiting platforms are symmetrically arranged on the door-type limiting frame, limiting frame center round holes are further formed in the door-type limiting frame, the sliding locking frame is clamped and slidably arranged in the sliding limiting platforms, a locking frame center round platform is arranged on the sliding locking frame, the sliding locking frame is symmetrically provided with locking frame circular avoiding holes and locking frame semi-waist-shaped avoiding holes in the two sides of the locking frame center round platform, when the polygonal locking boss is located in the locking frame circular avoiding holes, the sliding locking frame cannot limit rotation of the transmission nuts, when the polygonal locking boss is located in the locking frame semi-waist-shaped avoiding holes, the transmission nuts cannot rotate any more, limitation on the transmission nuts through the sliding locking frame can be guaranteed, the phenomenon that a group of undriven transmission nuts automatically descends under the action of gravity due to overlarge pressure can be avoided, and the phenomenon that blood or tissue fluid flows back due to overlarge pressure can be avoided.

Preferably, the sliding engagement driving assembly comprises a dosing driving motor, a dosing driving gear and a control handle, the dosing driving motor is arranged on a central circular truncated cone of the locking frame in a clamping mode, the dosing driving gear is arranged on an output shaft of the dosing driving motor in a clamping mode, 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 dosing driving motor, the control handle is pushed to drive the sliding locking frame to slide, the rotation angle of the dosing driving motor can be controlled through the motor control button, and the rotation angle of the dosing driving gear corresponds to the injection feeding amount, so that the output shaft of the dosing driving motor can be controlled to rotate by a certain angle to operate by pressing the motor control button once.

Furthermore, the double-channel medicine conveying mechanism comprises a medicine conveying pipe joint assembly and a long-distance conveying assembly, the medicine conveying pipe joint assembly is arranged on the main body bottom plate, and the long-distance conveying assembly is arranged in the medicine conveying pipe joint assembly; the medicine conveying pipe joint assembly comprises an end outer pipe and an end inner pipe, 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 an outer conveying pipe and an inner conveying pipe, the outer conveying pipe is clamped in the outer end pipe, the inner conveying pipe is clamped in the inner end pipe, the outer conveying pipe and the inner conveying pipe are supported and fixed through an inner ring support frame and an outer ring support frame, the inner puncturing pipe is arranged at the end of the inner conveying pipe, and the outer puncturing pipe is arranged at the end of the outer conveying pipe.

Furthermore, the mechanical control drug delivery assembly comprises an injection assembly and a mechanical pressing assembly, 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 arranged on the injection assembly in a sliding manner.

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 tube connector and the inner tube connector through the injector connector, the cross rod piston is clamped and slidably arranged in the square injector, and the cross rod piston is provided with a piston rod pressing part.

This scheme still discloses a subassembly is pressed to mechanical type includes that the lift presses platform, transmission lead screw and drive nut, the lift is pressed and is equipped with on the bench and presses a square sliding sleeve, the lift is pressed and is pressed the platform and slided to locate on square syringe through pressing a square sliding sleeve block, the lift is pressed and is equipped with on the platform and presses the splenium according to the platform cantilever type, press a cantilever type to press splenium and piston rod to press the splenium rigid coupling, the lift still is equipped with cantilever on pressing the bench, drive lead screw rigid coupling is on cantilever is picked the platform, drive nut and drive lead screw threaded connection, drive nut rotates to locate in spacing frame center round hole, the last nut gear layer that is equipped with of drive nut, nut gear layer and the meshing of drive gear of dosing are connected, still be equipped with polygon locking boss on the drive nut, polygon locking boss block slides and locates in the locking frame half waist shape when keeping away the position hole, the number of teeth on nut gear layer is the integer multiple of the number of polygon locking boss, and the angle that the output shaft of motor control button control dosing driving motor was rotatory at every turn corresponds with the number of polygon locking frame half waist shape boss's limit, when guaranteeing to stop at every turn, the polygon locking boss side direction homoenergetic is convenient for keeping away the polygon in the polygon half waist shape of polygon.

The invention with the structure has the following beneficial effects:

(1) The single-channel flow-resisting type double-channel puncture mechanism can achieve the technical purpose that one channel can be automatically closed when opened in the double-channel puncture process;

(2) The clutch double-control type drug delivery mechanism can accurately control the drug delivery amount in a mechanical driving mode, and can keep the locking state of another group of injection assemblies when injecting a drug, so that errors possibly caused by manual operation are reduced;

(3) The injection components can be pressed in a mechanical transmission mode (instead of manual power) through mechanically controlling the drug delivery components and the clutch double-control type driving drug delivery mechanism, on one hand, the accuracy of the drug delivery amount can be improved, on the other hand, one group of motors can be used for driving two groups of injection components, and when one group of injection components is driven, the other group of injection components is in a locking state;

(4) The puncture needle head is divided into two independent spaces by the needle head middle partition board, and the administration can be independently controlled after the puncture needle head is punctured into a human body, so that the two medicines are prevented from being mixed in advance or from mutually sagging;

(5) Two spaces separated by the needle head middle partition plate are blocked from the end part through the needle head end partition plate, so that liquid medicine flowing inside and outside the puncture inner tube can respectively flow into two different spaces of the puncture needle head;

(6) When the elastic contraction stop ring slides onto the flexible part of the inner tube, the flexible part of the inner tube can be extruded and blocked through self contraction, so that the flow of the liquid medicine in the puncture inner tube is stopped, 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 and outer ring support frames can support the puncture inner pipe and the puncture outer pipe and the conveying inner pipe, so that the collapse and blockage of the transfusion pipeline are prevented;

(8) The inner and outer ring support frames can provide continuous elasticity, and when liquid does not flow between the puncture inner tube and the puncture outer tube, the elastic contraction stop ring is automatically pushed back to reset, so that a gap between the rigid slope limiting table and the puncture outer tube 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-kidney-shaped avoidance hole of the locking frame, the transmission nut cannot rotate any more, and through the limit of the sliding locking frame on the transmission nut, a group of undriven transmission nuts cannot rotate, so that the automatic descending of the cross rod piston and the lifting pressing platform under the action of gravity can be avoided, and the phenomenon of blood or tissue fluid backflow caused by overlarge pressure can also be avoided;

(10) The control handle is pushed to drive the sliding locking frame to slide, the rotating angle of the drug administration driving motor can be controlled through the motor control button, and the rotating angle of the drug administration driving gear corresponds to the injection feeding amount, so that the output shaft of the drug administration driving motor can be controlled to rotate by a certain angle to operate by pressing the motor control button once;

(11) The motor control button controls the rotation angle of the output shaft of the drug feeding driving motor at each time to correspond to the number of the sides of the polygonal locking boss, so that when the drug feeding driving motor stops at each time, the side line direction of the polygonal locking boss can be coincided with the side line of the half waist-shaped avoiding hole of the locking frame, and the polygonal locking boss can conveniently slide in the half waist-shaped avoiding hole of the locking frame smoothly.

Drawings

FIG. 1 is a perspective view of a dual channel injector for a flow-impeding operating room according to the present invention;

FIG. 2 is a front view of a dual channel injector for a flow-resistant operating room according to the present invention;

FIG. 3 is a top view of a dual channel injector for a flow-resisting type operating room according to the present invention;

FIG. 4 isbase:Sub>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 of FIG. 3;

FIG. 6 is a schematic structural view of a single-channel flow-resisting type two-channel puncture mechanism of a two-channel injector for a flow-resisting type operating room, according to the present invention;

fig. 7 is a schematic structural view of a clutch double-control type driving drug delivery mechanism of a dual-channel injector for a flow-resistant operating room according to the present invention;

FIG. 8 is a schematic structural view of a dual channel drug delivery mechanism of a dual channel injector for a flow-resistant operating room according to the present invention;

FIG. 9 is a schematic structural view of a mechanically controlled drug delivery assembly of a dual channel syringe for a flow-blocking type operating room according to the present invention;

FIG. 10 is an enlarged view of a portion of FIG. 4 at I;

FIG. 11 is an enlarged view of a portion of FIG. 5 at II;

FIG. 12 is an enlarged view of a portion of FIG. 5 at III;

FIG. 13 is an enlarged view of a portion of FIG. 5 at IV;

fig. 14 is a partial enlarged view of v in fig. 3.

Wherein, 1, a single-channel flow-choking double-channel puncture mechanism, 2, a clutch double-control type driving drug delivery mechanism, 3, a double-channel drug delivery mechanism, 4, a mechanical control drug delivery assembly, 5, a double-channel puncture assembly, 6, a single-channel flow-choking assembly, 7, a puncture inner tube, 8, a puncture outer tube, 9, a puncture needle, 10, a rigid slope limit table, 11, an elastic shrinkage stop ring, 12, a stop ring reset spring, 13, an inner ring 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 partition plate, 19, a needle end partition plate, 20, an end partition plate hole, 21, a support frame hollow part, 22, a sliding guide support assembly, 23, a sliding engagement driving assembly, 24, a main body bottom plate, 25, a door type limit frame, 26, a sliding locking frame, 27 and a drug delivery driving motor, 28, a medicine feeding driving gear 29, a control handle 30, a sliding limiting table 31, a limiting frame center round hole 32, a locking frame center round table 33, a locking frame round avoiding hole 34, a locking frame semi-kidney-shaped avoiding hole 35, a motor control button 36, a medicine delivery pipe joint assembly 37, a long-distance conveying assembly 38, an end outer pipe 39, an end inner pipe 40, a conveying outer pipe 41, a conveying inner pipe 42, an outer pipe joint 43, an outer pipe round hole 44, an inner pipe joint 45, an injection assembly 46, a mechanical pressing assembly 47, a square injector 48, a cross rod piston 49, a lifting pressing table 50, a transmission screw rod 51, a transmission nut 52, an injector joint 53, a piston rod pressing part 54, a pressing table square sliding sleeve 55, a pressing table cantilever type pressing part 56, a cantilever table 57, a nut gear layer 58, polygonal stop bosses.

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in fig. 1, the invention provides a dual-channel injector for a flow-blocking operating room, which 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 component 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 technical purpose that one channel can be automatically closed when the other channel is opened in the dual-channel puncture process can be realized through the single-channel flow-blocking 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, dual-channel and dual-medium remote delivery is carried out through the dual-channel drug delivery mechanism 3, and the mechanical control drug delivery component 4 is arranged on the dual-channel drug delivery mechanism 3; through the dual accuse formula drive mechanism 2 of dosing of mechanical control subassembly 4 and separation and reunion, can press injection subassembly 45 with mechanical transmission's mode (rather than the manpower), can improve the accuracy of dosage on the one hand, on the other hand can also use two sets of injection subassemblies 45 of a set of motor drive to when a set of injection subassembly 45 is driven, another set of injection subassembly 45 is in the locking state, and mechanical control subassembly 4 symmetry is equipped with two sets ofly.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 7, fig. 10, and fig. 14, the clutch double-control type driving drug delivery mechanism 2 includes a sliding guide support component 22 and a sliding engagement driving component 23, and the sliding engagement driving component 23 is disposed on the sliding guide support component 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, the door-type limiting frame 25 is symmetrically provided with a sliding limiting table 30, a limiting frame center circular 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 circular table 32 is arranged on the sliding locking frame 26, a locking frame circular avoiding hole 33 and a locking frame semi-waist-shaped avoiding hole 34 are symmetrically arranged on two sides of the locking frame center circular table 32 of the sliding locking frame 26, when a polygonal stopping boss 58 is arranged in the locking frame circular avoiding hole 33, the sliding locking frame 26 cannot limit the rotation of a transmission nut 51, when the polygonal stopping boss 58 is arranged in the locking frame semi-waist-shaped avoiding hole 34, the transmission nut 51 cannot rotate any more, the situation that a group of transmission nuts 51 which are not driven cannot rotate can be guaranteed by the limiting of the sliding locking frame 26 can be avoided, and not only can the cross rod piston 48 and the lifting pressing table 49 automatically descend under the action of gravity, but also can avoid the backflow phenomenon of blood or tissue fluid caused by overlarge pressure; the sliding engagement driving assembly 23 comprises a drug administration driving motor 27, a drug administration driving gear 28 and a control handle 29, the drug administration driving motor 27 is clamped on a central circular truncated cone 32 of a locking frame, the drug administration driving gear 28 is clamped on an output shaft of the drug administration 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 administration driving motor 27, the sliding locking frame 26 is driven to slide by pushing the control handle 29, the rotating angle of the drug administration driving motor 27 can be controlled through the motor control button 35, and the rotating angle of the drug administration driving gear 28 corresponds to the feeding amount of injection, so that the output shaft of the drug administration driving motor 27 can be controlled to rotate by a certain angle by pressing the motor control button 35 once to operate.

As shown in fig. 1, 5, 8 and 12, the dual-channel medicine conveying mechanism 3 comprises a medicine conveying pipe joint assembly 36 and a long-distance conveying assembly 37, wherein the medicine conveying 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 conveying 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, wherein 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 and outer ring supporting frames 13, the inner puncturing pipe 7 is arranged at the end part of the inner conveying pipe 41, and the outer puncturing pipe 8 is arranged at the end part of the outer conveying pipe 40.

As shown in fig. 1, 2, 3, 6 and 13, the single-channel flow-resisting dual-channel puncturing mechanism 1 includes a dual-channel puncturing assembly 5 and a single-channel flow-resisting assembly 6, the dual-channel puncturing assembly 5 is disposed at the end of the dual-channel drug delivery mechanism 3, and the single-channel flow-resisting assembly 6 is disposed in the dual-channel puncturing assembly 5; the double-channel puncture assembly 5 comprises a puncture inner tube 7, a puncture outer tube 8 and a puncture needle head 9, the puncture inner tube 7 is arranged on the double-channel medicine conveying mechanism 3, the puncture outer tube 8 is arranged on the double-channel medicine conveying mechanism 3, an inner tube flexible part 14 is arranged in the middle section of the puncture inner tube 7, a needle head connecting port 15, a needle head holding part 16 and a needle head metal puncture part 17 are sequentially arranged on the puncture needle head 9, the puncture needle head 9 is fixedly connected with the puncture outer tube 8 through the needle head connecting port 15, a needle head middle partition plate 18 is arranged between the needle head holding part 16 and the needle head metal puncture part 17 of the puncture needle head 9, the puncture needle head 9 is divided into two independent spaces by the needle head middle partition plate 18, medicine feeding can be independently controlled after a human body is punctured, two medicines are prevented from being mixed in advance or from flowing and hanging, a needle head end partition plate 19 is arranged at the end part of the needle head middle partition plate 18, the puncture needle head 9 is provided with an end partition plate hole 20 on the needle head end part 19, the puncture inner tube 7 is clamped in the end partition plate hole 20, and two separated spaces of the needle head middle partition plate 18 from the end part are blocked, and it is ensured that the inside and the medicine liquid medicine flowing outside of the puncture inner tube 7 can respectively flow into the two different spaces of the puncture needle head 9; the single channel flow choking assembly 6 comprises a rigid slope limiting table 10, an elastic shrinkage stopping ring 11, a stopping ring reset spring 12 and an inner and outer ring support frame 13, wherein the rigid slope limiting table 10 is clamped on the puncture inner tube 7, the elastic shrinkage stopping ring 11 is arranged on the slope surface of the rigid slope limiting table 10 in a sliding mode, when the elastic shrinkage stopping ring 11 slides to the inner tube flexible part 14, the inner tube flexible part 14 can be extruded and blocked through self shrinkage, so that the flowing of liquid medicine in the puncture inner tube 7 is stopped, the liquid medicine remained in the puncture inner tube 7 and the conveying inner tube 41 can be prevented from naturally flowing down and affecting the administration accuracy, the inner and outer ring support frame 13 is clamped between the puncture inner tube 7 and the puncture outer tube 8, the support frame hollow parts 21 are arranged on the inner and outer ring support frame 13, the inner and outer tube 7 and the puncture outer tube 8 can be supported through the inner and outer conveying tube 40 and the conveying inner tube 41, so that the infusion pipeline is prevented from being blocked, one end of the stopping ring reset spring 12 is arranged on the elastic shrinkage stopping ring 11, the other end of the inner and outer ring reset stop frame 13 is arranged on the inner and the inner ring support frame 13, so that the outer tube 7 and the outer tube can provide continuous elasticity, and the liquid can be blocked when the puncture inner tube 7 and the puncture inner tube 8, and the outer tube is automatically pushed back to block the clearance between the puncture stop ring, and the rigid slope limiting ring 13, and the puncture inner tube, and the outer tube 8, and the outer tube when the puncture clearance is blocked.

As shown in fig. 1, fig. 2, fig. 9, fig. 10 and fig. 11, the mechanical control drug administration assembly 4 includes two injection assemblies 45 and a mechanical pressing assembly 46, the injection assemblies 45 are symmetrically provided with two groups, the injection assemblies 45 are respectively provided in the outer tube connector 42 and the inner tube connector 44, and the mechanical pressing assembly 46 is slidably provided on the injection assemblies 45; the injection assembly 45 comprises a square injector 47 and a cross rod piston 48, the square injector 47 is provided with an injector joint 52, the square injector 47 is respectively clamped in the outer tube joint 42 and the inner tube joint 44 through the injector joint 52, the cross rod piston 48 is clamped and slidably arranged in the square injector 47, and the cross rod piston 48 is provided with a piston rod pressing part 53; the mechanical pressing assembly 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 arranged on the square injector 47 in a clamping and sliding mode through the pressing table square sliding sleeve 54, a pressing table cantilever type pressing portion 55 is arranged on the lifting pressing table 49, the pressing table cantilever type pressing portion 55 is fixedly connected with a piston rod pressing portion 53, a cantilever picking table 56 is further arranged on the lifting pressing table 49, the transmission screw rod 50 is fixedly connected onto the cantilever picking table 56, the transmission nut 51 is in threaded connection with the transmission screw rod 50, the transmission nut 51 is rotatably arranged in the central circular 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 dosing driving gear 28, a polygonal stopping boss 58 is further arranged on the transmission nut 51, the polygonal stopping boss 58 is arranged in the locking frame half-waist-shaped stopping hole 34 in a clamping and sliding mode, the number of the nut gear layer 57 is an integral multiple of the number of the polygon stopping boss 58, the polygon stopping boss 58 controls an angle of each rotation of an output shaft of the dosing driving motor 27 to correspond to the number of the polygon stopping boss 58, and ensures that when the stopping hole 34 slides smoothly, and the stopping boss 26 can coincide with the polygon stopping hole in the polygon stopping frame half-shaped stopping hole.

When the device is used specifically, firstly, a user needs to fill the square injector 47 with a medicament and pierce the metal needle puncturing part 17 into a part of the skin of a patient, which needs to be administered;

then sliding the locking frame 26 towards the direction of a group of medicaments to be injected, in the sliding process, a group of transmission nuts 51 close to the target medicaments enter the circular avoiding hole 33 of the locking frame from the semi-kidney-shaped avoiding hole 34 of the locking frame, releasing the rotation limiting state, keeping the other group of transmission nuts 51 in the rotation limiting state, controlling the rotation of the output shaft of the administration driving motor 27 through the motor control button 35 after the administration driving gear 28 is meshed with the nut gear layer 57 on one side of the target medicaments, and further driving the transmission nuts 51 to rotate through the administration driving gear 28;

the transmission nut 51 is mutually transmitted with the transmission screw rod 50 when rotating, the lifting pressing platform 49 is driven to descend by descending of the transmission screw rod 50, and the cross rod piston 48 is compressed towards the square injector 47 by the cantilever type pressing part 55 of the pressing platform, so that the medicament in the square injector 47 is squeezed 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 head 9 through the puncture inner tube 7 and then be injected into a human body;

when the medicament enters between the end outer tube 38 and the end inner tube 39 from the outer tube joint 42, the medicament pushes away the elastic shrinkage stop ring 11 when flowing through the single flow passage flow blocking assembly 6, and flows through the gap between the rigid slope stop 10 and the puncture outer tube 8, once the elastic shrinkage stop ring 11 slips off from the rigid slope stop 10, the needle connecting port 15 can be pressed and blocked by the self-shrinkage, the medicament in the delivery inner tube 41 is prevented from flowing out uncontrollably, and after the 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 stop 10 and the puncture outer tube 8 is blocked again.

The above is the overall working process of the invention, and the steps are repeated when the device is used next time.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should be able to conceive of the present invention without creative design of the similar structural modes and embodiments without departing from the spirit of the present invention, and all such modifications should fall within the protection scope of the present invention.

Claims

1. A choked flow type double-channel syringe for operating room, characterized by: the device comprises a single-channel flow-blocking double-channel puncture mechanism (1), a clutch double-control type driving drug delivery mechanism (2), a double-channel drug delivery mechanism (3) and a mechanical control drug delivery component (4), wherein the single-channel flow-blocking double-channel puncture mechanism (1) is arranged at the tail end of the double-channel drug delivery mechanism (3), the double-channel drug delivery mechanism (3) is arranged on the clutch double-control type driving drug delivery mechanism (2), and the mechanical control drug delivery component (4) is arranged on the double-channel drug delivery mechanism (3); two groups of mechanical control drug delivery components (4) are symmetrically arranged; the single-channel flow-resisting type double-channel puncture mechanism (1) comprises a double-channel puncture component (5) and a single-channel flow-resisting component (6), the double-channel puncture component (5) is arranged at the tail end of the double-channel drug delivery mechanism (3), and the single-channel flow-resisting component (6) is arranged in the double-channel puncture component (5).

2. The dual channel injector for operating room of flow-impeding type of claim 1, wherein: binary channels puncture subassembly (5) are including puncture inner tube (7), puncture outer tube (8) and puncture syringe needle (9), puncture inner tube (7) are located on binary channels medicine conveying mechanism (3), puncture outer tube (8) are located on binary channels medicine conveying mechanism (3), be equipped with inner tube flexible portion (14) on the interlude of puncture inner tube (7), be equipped with syringe needle connection port (15), syringe needle portion (16) and syringe needle metal puncture portion (17) on puncture syringe needle (9) in proper order, puncture syringe needle (9) are through syringe needle connection port (15) and puncture outer tube (8) rigid coupling, puncture syringe needle (9) are equipped with syringe needle intermediate septum (18) in the middle of syringe needle portion (16) and syringe needle metal puncture portion (17), the tip of syringe needle intermediate septum (18) is equipped with syringe needle tip baffle (19), puncture syringe needle (9) are equipped with tip baffle hole (20) on syringe needle tip baffle (19), puncture inner tube (7) block is located in tip hole (20).

3. The dual channel injector for operating room of choked flow type according to claim 2, wherein: the single-channel flow choking assembly (6) comprises a rigid slope limiting table (10), an elastic contraction stopping ring (11), a stopping ring reset spring (12) and inner and outer ring supporting frames (13), the rigid slope limiting table (10) is clamped on the puncture inner tube (7), the elastic contraction stopping ring (11) is arranged on the slope surface of the rigid slope limiting table (10) in a sliding mode, the inner and outer ring supporting frames (13) are clamped between the puncture inner tube (7) and the puncture outer tube (8), supporting frame hollow parts (21) are arranged on the inner and outer ring supporting frames (13), one end of the stopping ring reset spring (12) is arranged on the elastic contraction stopping ring (11), and the other end of the stopping ring reset spring (12) is arranged on the inner and outer ring supporting frames (13).

4. The dual channel injector for operating room of choked flow type according to claim 3, wherein: the clutch double-control type driving dosing 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); slide steering supporting component (22) include main part bottom plate (24), spacing (25) of gate-type and slip locking frame (26), main part bottom plate (24) is located to spacing (25) symmetry of gate-type, the symmetry is equipped with slip spacing platform (30) on spacing (25) of gate-type, still be equipped with spacing center round hole (31) on spacing (25) of gate-type, slip locking frame (26) block slides and locates in slip spacing platform (30), be equipped with locking frame center round platform (32) on slip locking frame (26), slip locking frame (26) are equipped with circular position hole (33) and the locking frame of keeping away of round waist shape in the bilateral symmetry of locking frame center round platform (32) and are equipped with locking frame circular position hole (34) of keeping away with locking frame.

5. The dual channel injector for operating room of choked flow type according to claim 4, wherein: sliding engagement drive assembly (23) including dosing driving motor (27), dosing drive gear (28) and brake valve lever (29), dosing driving motor (27) block is located locking frame center round platform (32), dosing drive gear (28) block is located on the output shaft of dosing driving motor (27), brake valve lever (29) are located on slip locking frame (26), be equipped with motor control button (35) on brake valve lever (29), motor control button (35) and dosing driving motor (27) electricity are connected.

6. The dual channel injector for operating room of choked flow type according to claim 5, wherein: the double-channel medicine conveying mechanism (3) comprises a medicine conveying pipe joint assembly (36) and a long-distance conveying assembly (37), the medicine conveying 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 conveying pipe joint assembly (36); the medicine conveying pipe joint assembly (36) comprises an end outer pipe (38) and an end inner pipe (39), the end outer pipe (38) is arranged on the main body bottom plate (24), an outer pipe joint (42) is arranged at one end of the end outer pipe (38), an outer pipe round hole (43) is formed in the other end of the end outer pipe (38), the end inner pipe (39) is located in the end outer pipe (38), an inner pipe joint (44) is arranged on the end inner pipe (39), and the inner pipe joint (44) is clamped in the outer pipe round hole (43).

7. The dual channel injector for operating room of flow-impeding type of claim 6, wherein: long distance transport subassembly (37) are including carrying outer tube (40) and carrying inner tube (41), carry outer tube (40) block to locate in tip outer tube (38), carry inner tube (41) block to locate in tip inner tube (39), it is fixed through interior outer lane support frame (13) support to carry between outer tube (40) and the transport inner tube (41), the tip of carrying inner tube (41) is located in puncture inner tube (7), the tip of carrying outer tube (40) is located in puncture outer tube (8).

8. The dual channel injector for operating room of flow-impeding type of claim 7, wherein: the mechanical control drug administration assembly (4) comprises an injection assembly (45) and a mechanical pressing assembly (46), the injection assembly (45) is symmetrically provided with two groups, the injection assembly (45) is respectively arranged in an outer pipe joint (42) and an inner pipe joint (44), and the mechanical pressing assembly (46) is arranged on the injection assembly (45) in a sliding mode.

9. The dual channel injector for operating room of flow-resistant type as claimed in claim 8, wherein: 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 tube connector (42) and the inner tube 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).

10. The dual channel injector for operating room of choked flow type according to claim 9, wherein: mechanical type presses subassembly (46) to press platform (49), transmission lead screw (50) and transmission nut (51) including going up and down, go up and down to press and be equipped with on platform (49) and press square sliding sleeve of platform (54), go up and down to press and to press platform (49) to slide through pressing square sliding sleeve of platform (54) block and locate square syringe (47), go up and down to press and be equipped with on platform (49) and press a cantilever type to press and press splenium (55), press a cantilever type to press splenium (55) and piston rod to press splenium (53) rigid coupling, go up and down to press and still be equipped with cantilever on platform (49) and pick platform (56), transmission lead screw (50) rigid coupling is picked on cantilever platform (56), transmission nut (51) and transmission lead screw (50) threaded connection, transmission nut (51) rotate and locate in spacing center round hole (31), be equipped with nut layer (57) on transmission nut (51), nut layer (57) and drive gear (28) meshing connection of dosing, still be equipped with polygon boss (58) on transmission nut (51), block boss (58) the polygon slip the number of half limit of polygon boss, the stop number of the polygon boss (34) and the stop the polygon boss.