CN113546251A

CN113546251A - Auxiliary injector for contrast medium in interventional department and auxiliary supporting assembly thereof

Info

Publication number: CN113546251A
Application number: CN202110621136.4A
Authority: CN
Inventors: 刘�文; 岳好润; 刘雅楠
Original assignee: Cancer Hospital of Shandong First Medical University
Current assignee: Cancer Hospital of Shandong First Medical University
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2021-10-26
Anticipated expiration: 2041-06-03
Also published as: CN113546251B

Abstract

The invention discloses an auxiliary injector for contrast medium in an interventional department and an auxiliary support assembly thereof, which relate to the technical field of medical instruments and comprise an injection mechanism, an auxiliary injector for the movement of the injection mechanism and an auxiliary support assembly; the injection mechanism comprises an injection tube, an injection head arranged at one end of the injection tube, a piston which is installed in the injection tube in a matching mode, and a push rod which is fixedly connected to one end of the piston. The invention has reasonable structure, the injection tube is provided with scale marks and is a transparent tube, the injection amount of the contrast medium can be observed conveniently, the contrast medium can be injected conveniently by arranging the push rod propelling part, the operation is convenient and labor-saving, and the push rod is stopped to be propelled to move by arranging the push rod thrust unit, the elasticity of the limiting spring, the thrust piston and the thrust rod, so that the phenomenon that the contrast medium is injected into the body of a patient by mechanical thrust due to the blockage of the blood vessel of the patient, the excessive liquid in the biliary tract is caused, and the unnecessary pain of the patient is increased is avoided.

Description

Auxiliary injector for contrast medium in interventional department and auxiliary supporting assembly thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to an auxiliary injector for contrast medium in an interventional department and an auxiliary supporting component thereof.

Background

When retrograde pyelography, urethrography, cholangiography and the like are performed, a contrast medium needs to be injected into a patient. Contrast agents are chemicals that are injected into human tissue or organs to enhance the visualization of images. These chemicals are denser or less dense than the surrounding tissue and contrast with the surrounding tissue, and contrast images can be displayed by some instruments.

At present, a commonly used injection method is that a doctor injects a contrast agent into the body of a patient under the irradiation of an X-ray machine, and the contrast agent is obviously harmful to the health of the doctor in an environment of radioactive rays for a long time, so that a relevant student designs a contrast agent injector, but when the contrast agent injector is used, the pressure change in the body of the patient cannot be sensed in real time, so that the injection speed and the injection amount of the contrast agent cannot be well controlled, and potential safety hazards exist when the injection device is used under special conditions, for example: patient's biliary tract is obstructed, can't distinguish before the radiography, if still use mechanical thrust to inject the contrast-medium to the patient is internal, can cause the interior liquid total volume of biliary tract to increase and unable normal discharge, biliary tract internal pressure sharply risees, and serious person can cause the damage of surrounding pipe wall or tissue and increase patient's unnecessary misery, consequently, this application provides supplementary syringe of intervention branch of academic or vocational study contrast-medium and supplementary supporting component and satisfies the demand.

Disclosure of Invention

An object of the application is to provide an supplementary syringe of intervention branch of academic or vocational study contrast medium and supplementary supporting component thereof, there is the scale mark on the syringe, and the syringe is the hyaline tube, the volume of being convenient for observe the contrast medium injection, through setting up the push rod propulsion portion, be convenient for promote the push rod, the piston removes, thereby be convenient for inject the contrast medium, high durability and convenient operation, it is laborsaving, through setting up push rod thrust unit, spacing spring's elasticity, thrust piston, thrust rod, make push rod propulsion portion stop to impel the push rod and remove, thereby avoid having the jam because of patient's vascular, mechanical thrust is to the internal contrast medium of patient, it is excessive to make the interior liquid of biliary tract, cause the damage of surrounding pipe wall or tissue and increase patient's unnecessary misery.

In order to achieve the above purpose, the present application provides the following technical solutions: an auxiliary injector of contrast medium for interventional department and an auxiliary supporting component thereof comprise an injection mechanism, an auxiliary injector for the movement of the injection mechanism and an auxiliary supporting component; the injection mechanism comprises an injection tube, an injection head arranged at one end of the injection tube, a piston which is adapted to be arranged in the injection tube, and a push rod which is fixedly connected with one end of the piston, the auxiliary injector and the auxiliary support component comprise a base arranged at the bottom of the injection tube, one end of the piston is provided with a mounting groove, a through hole is arranged on the inner wall of one side of the mounting hole, a thrust piston is arranged in the mounting hole in a matching way, one side of the thrust piston is fixedly connected with a thrust rod, a limit spring is arranged in the mounting groove, two ends of the limit spring are respectively and fixedly connected with the thrust piston and the piston, the bottom of the base is fixedly connected with a shell, a push rod propelling part is arranged on the inner wall of the bottom of the shell and comprises a push rod thrust unit and a push rod propelling unit which are connected with each other, and one end of each of the push rod and the push rod is attached to the push rod propelling part; the injection tube limiting part is installed at the top of the base, scale marks are arranged on the side wall of the injection tube, and the injection tube is a transparent tube.

Borrow by above-mentioned structure, there is the scale mark on the injection syringe, and the injection syringe is the hyaline tube, be convenient for observe the volume that the contrast medium was injected, through setting up push rod propulsion portion, be convenient for promote the push rod, the piston removes, thereby be convenient for inject the contrast medium, high durability and convenient operation, labor-saving, through setting up push rod thrust unit, when the unusual pressure of pressure in the injection syringe, pressure is greater than spacing spring's elasticity, make thrust piston, thrust rod along the mounting groove, the perforation removes, and promote push rod thrust unit, make push rod propulsion portion stop to impel the push rod and remove, thereby avoid blockking up because of patient's blood vessel exists, contrast medium is injected to patient's internal to the thrust of mechanicalness, it is excessive to make into interior liquid of biliary tract, cause the damage of surrounding pipe wall or tissue and increase patient's unnecessary misery, through setting up spacing portion of injection syringe, be convenient for installation and dismantlement to injection mechanism.

Preferably, the push rod propulsion unit comprises a pair of supporting plates fixedly connected to the inner wall of the bottom of the shell, a pair of rotating holes are formed in one side of each supporting plate, a rotating shaft is connected to the rotating holes in a rotating mode, two ends of the rotating shaft penetrate through two sides of the shell respectively, a rotating handle is fixedly connected to the two ends of the rotating shaft, a gear is fixedly sleeved on the rotating shaft, a rack horizontally arranged is meshed on the gear, a T-shaped sliding groove is formed in the top of the rack, a guide sliding rail is connected to the T-shaped sliding groove in a sliding mode, two ends of the guide sliding rail are fixedly connected to the inner walls of two sides of the shell respectively, and the push rod thrust unit is connected with the rack.

Furthermore, through setting up push rod propulsion unit, rotate and change the handle, change and rotate the handle and drive the axis of rotation, the axis of rotation drives the gear rotation, and the gear meshes with the rack mutually to drive the rack and remove along the direction slide rail, the rack removes and drives the thrust unit of push rod and remove, thereby realizes the contrast medium injection function, easy operation, through setting up a pair of handle that changes, but both hands rotate, the laborsaving operation.

Preferably, a pair of rotating handles is sleeved with a sheath at one end, and the rotating handles are arranged in a mirror image installation mode.

Through setting up the sheath, improved operator's travelling comfort, a butt-turn handle sets up for the mirror image installation, and operator's both hands can cross hard for it is more laborsaving during the rotation.

Preferably, the push rod thrust unit comprises a fixed seat arranged on the top of the rack, a pair of side plates is fixedly connected to the top of the fixed seat, a fixed shaft is fixedly connected between the pair of side plates, a push plate is rotatably connected to the fixed shaft, a limiting hole is formed in the bottom of the push plate, a limiting groove is formed in the position, corresponding to the limiting hole, of the top of the fixed seat, a limiting pin is inserted into the limiting groove through the limiting hole, a U-shaped support rod is fixedly connected to the top of the fixed seat, a fixing sleeve is rotatably sleeved on the U-shaped support rod, a thrust plate is fixedly connected to the side wall of the fixing sleeve, a through hole is formed in one side of the push plate, an installation hole is formed in the side wall of the limiting pin, an installation shaft is fixedly connected to the installation hole, and one end of the thrust plate penetrates through the through hole and is fixedly connected to the installation shaft, one end of the push rod is attached to one side of the push plate, and one end of the thrust rod is attached to one side of the thrust plate.

Furthermore, by arranging the push rod thrust unit, one end of the push rod is attached to one side of the push plate, so that the push rod is pushed to move when the push plate moves, the injection pushing function is realized, one end of the thrust rod is attached to the thrust plate, when the thrust rod moves under stress, the thrust plate is pushed to rotate by taking the U-shaped supporting rod as a rotation center, so that one end of the thrust plate is lifted upwards, thereby driving the mounting shaft and the limiting pin to move upwards, sliding one end of the limiting pin out of the limiting groove, thereby realizing the releasing of the limiting of the push plate, the push plate rotates by taking the fixed shaft as a rotating center, thereby realize the push pedal and relieve and continue to promote the effect to the push rod, simple structure realizes promoting and thrust effect, has avoided because of there is the jam in patient's blood vessel, and the contrast medium is pushed to patient's internal injection to mechanical thrust, causes the damage of the interior liquid of biliary tract, causes surrounding pipe wall or tissue and increases patient's unnecessary misery.

Preferably, counter bores are formed in the periphery of the top of the fixing seat, thread grooves are formed in the positions, corresponding to the counter bores, of the top of the rack, and counter screws are screwed in the thread grooves through the counter bores.

Through setting up countersunk screw, counter sink, thread groove, be convenient for with fixing base fixed mounting on the rack.

Preferably, the top of push pedal has seted up and has dodged the hole, the one end of thrust lever runs through dodge the hole.

Preferably, the spacing portion of injection syringe include fixed connection in a pair of U-shaped plate that the symmetry on the base top set up, corresponding slide opening has been seted up to the both sides of U-shaped plate, a pair of limit ear of fixedly connected with on the lateral wall of injection syringe is a pair of the locating hole has all been seted up to one side of limit ear, and is a pair of one side of U-shaped plate all is provided with the fixed pin, the one end of fixed pin runs through locating hole and a pair of slide opening, and is a pair of the same connecting rod of one end fixedly connected with of fixed pin, it is a pair of equal fixedly connected with solid fixed ring on the fixed pin, gu fixed ring one side with one side of limit ear is laminated mutually.

Further, through setting up the spacing portion of injection syringe, place the injection syringe on the base, the pulling connecting rod, the connecting rod drives two fixed pins along the slip on the U-shaped board, and when locating hole on the limit ear was coaxial with the slide opening, the one end of fixed pin passed the locating hole and slided to in another slide opening to the installation of realization to the injection syringe, the injection syringe installation is stable, convenient operation.

Preferably, a pair of fixing pins are sleeved with a compression spring, two ends of the compression spring are respectively fixedly connected with the fixing ring and the U-shaped plate, and the connecting rod is of a U-shaped structure.

Through setting up pressure spring, when loosening the connecting rod, under pressure spring's elastic force effect, realize connecting rod, fixed pin, solid fixed ring self return, easy operation is laborsaving to the realization compresses tightly the function.

Preferably, the bottom fixedly connected with of shell is a pair of telescopic link, and is a pair of the equal fixedly connected with mounting panel of flexible end of telescopic link, and is a pair of a plurality of mounting holes have all been seted up at the top of mounting panel.

Through setting up the telescopic link, be convenient for adjust the position height of assisting notes ware and auxiliary stay subassembly, through setting up mounting panel, mounting hole, be convenient for with supplementary notes ware and auxiliary stay subassembly and support frame fixed mounting.

In conclusion, the technical effects and advantages of the invention are as follows:

1. the invention has reasonable structure, the injection tube is provided with scale marks and is a transparent tube, the injection amount of the contrast medium can be observed conveniently, the push rod pushing part is arranged to push the push rod and the piston to move conveniently, thereby facilitating the injection of the contrast medium, being convenient to operate and saving labor, when the pressure in the injection tube is abnormal, the pressure is larger than the elastic force of the limiting spring by arranging the push rod thrust unit, so that the thrust piston and the thrust rod move along the mounting groove and the through hole and push the push rod thrust unit, the push rod propelling part stops propelling the push rod to move, therefore, the damage of surrounding pipe walls or tissues and unnecessary pain of the patient caused by excessive liquid in the biliary tract due to the fact that the blood vessel of the patient is blocked and the contrast medium is injected into the body of the patient by mechanical thrust can be avoided, and the injection mechanism can be conveniently installed and detached by arranging the injection pipe limiting part;

2. according to the contrast agent injection device, the push rod propelling unit is arranged, the rotating handle is rotated, the rotating handle rotates to drive the rotating shaft to rotate, the rotating shaft rotates to drive the gear to rotate, the gear is meshed with the rack, so that the rack is driven to move along the guide sliding rail, the rack moves to drive the push rod thrust unit to move, the contrast agent injection function is achieved, the operation is simple, the rotating handle pair is arranged, the rotating handle pair can rotate by two hands, the operation is labor-saving, the comfort of an operator is improved by arranging the protective sleeve, the rotating handle pair is arranged in a mirror image installation mode, the two hands of the operator can be used for exerting force in a crossed mode, and the labor is saved during rotation;

3. in the invention, by arranging the push rod thrust unit, one end of the push rod is jointed with one side of the push plate, so that the push rod is pushed to move when the push plate moves, the function of pushing injection is realized, one end of the thrust rod is jointed with the thrust plate, when the thrust rod moves under stress, the thrust plate is pushed to rotate by taking the U-shaped supporting rod as a rotation center, so that one end of the thrust plate is lifted upwards, thereby driving the mounting shaft and the limiting pin to move upwards, sliding one end of the limiting pin out of the limiting groove, thereby realizing the releasing of the limiting of the push plate, the push plate rotates by taking the fixed shaft as a rotating center, the push plate is used for releasing the effect of continuously pushing the push rod, the structure is simple, the pushing and thrust effects are realized, and the problems that the contrast medium is injected into the body of a patient by mechanical pushing force due to the blockage of the blood vessel of the patient, the liquid in the biliary tract is excessive, the surrounding tube wall or tissue is damaged, and unnecessary pain of the patient is increased are avoided;

4. according to the injection tube fixing device, the injection tube is placed on the base through the injection tube limiting part, the connecting rod is pulled, the connecting rod drives the two fixing pins to slide along the U-shaped plate, when the positioning hole in the lug is coaxial with the sliding hole, one end of each fixing pin penetrates through the positioning hole and slides into the other sliding hole, so that the injection tube is installed stably, the operation is convenient, the connecting rod, the fixing pins and the fixing rings are automatically reset under the elastic force action of the pressing springs when the connecting rod is loosened through the pressing springs, the operation is simple and labor-saving, and the pressing function is realized;

5. according to the auxiliary pushing injector and the auxiliary supporting assembly thereof, the countersunk head screw, the countersunk hole and the thread groove are arranged, so that the fixed seat is conveniently and fixedly arranged on the rack, the telescopic rod is arranged so that the position height of the auxiliary pushing injector and the auxiliary supporting assembly thereof can be conveniently adjusted, and the mounting plate and the mounting hole are arranged so that the auxiliary pushing injector and the auxiliary supporting assembly thereof can be conveniently and fixedly arranged on the supporting frame.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of an auxiliary injector for contrast media and an auxiliary supporting assembly thereof in an interventional department;

FIG. 2 is a partially cut-away perspective view of an auxiliary injector for contrast media and an auxiliary supporting assembly thereof;

FIG. 3 is a schematic side view of an auxiliary injector for contrast medium and an auxiliary supporting assembly thereof in an interventional department;

FIG. 4 is an enlarged perspective view of the pushing portion of the pushing rod;

FIG. 5 is an enlarged perspective view of the thrust unit;

FIG. 6 is an enlarged perspective view of the stop lever pressing and pushing unit;

FIG. 7 is an enlarged perspective view of the injection tube stopper;

FIG. 8 is an enlarged perspective view of the push plate.

In the figure: 1. an injection tube; 2. an injection head; 3. a push rod; 4. a housing; 5. a telescopic rod; 6. mounting a plate; 7. a U-shaped plate; 8. a connecting rod; 9. a base; 10. a sheath; 11. turning a handle; 12. a fixed seat; 13. a piston; 14. a side plate; 15. a guide slide rail; 16. a rack; 17. a gear; 18. a support plate; 19. pushing the plate; 20. a thrust plate; 21. a U-shaped support bar; 22. a spacing pin; 23. a limiting groove; 24. a countersunk hole; 25. a thrust rod; 26. a thrust piston; 27. a limiting spring; 28. a fixing pin; 29. a fixing ring; 30. a compression spring; 31. a side ear; 32. and (5) fixing the sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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.

Example (b): referring to fig. 1-8, an auxiliary injector of contrast medium for interventional department and its auxiliary supporting component are shown, which includes an injection mechanism and an auxiliary injector and auxiliary supporting component for movement of the injection mechanism; the injection mechanism comprises an injection tube 1, an injection head 2 arranged on one end of the injection tube 1 and a piston 13 which is arranged in the injection tube 1 in a matching way, the auxiliary injection device and the auxiliary support assembly comprise a base 9 arranged at the bottom of the injection tube 1, one end of the piston 13 is provided with a mounting groove, the inner wall of one side of the mounting hole is provided with a through hole, a thrust piston 26 is mounted in the mounting groove in a matching manner, one side of the thrust piston 26 is fixedly connected with a thrust rod 25, a limiting spring 27 is arranged in the mounting groove, two ends of the limiting spring 27 are respectively fixedly connected with the thrust piston 26 and the piston 13, the bottom of the base 9 is fixedly connected with a shell 4, the inner wall of the bottom of the shell 4 is provided with a push rod propelling part, the push rod propelling part comprises a push rod thrust unit and a push rod propelling unit which are mutually connected, and one ends of the push rod 3 and the thrust rod 25 are both attached to the push rod propelling part; the top of base 9 is installed the spacing portion of injection syringe, is provided with the scale mark on the lateral wall of injection syringe 1, and injection syringe 1 is the hyaline tube.

By the structure, the injection tube 1 is provided with scale marks and is a transparent tube, so that the injection amount of the contrast medium can be observed conveniently, the push rod 3 and the piston 13 can be pushed to move conveniently by arranging the push rod propelling part, thereby facilitating the injection of the contrast medium, being convenient to operate and saving labor, when the pressure in the injection tube 1 is abnormal pressure, the pressure is larger than the elastic force of the limit spring 27 by arranging the push rod thrust unit, so that the thrust piston 26 and the thrust rod 25 move along the mounting groove and the through hole, and push the push rod thrust unit, so that the push rod propelling part stops propelling the push rod 3 to move, thereby avoid having the jam because of patient's blood vessel, mechanical thrust is to the internal contrast medium of pushing injection of patient, causes the interior liquid of biliary tract excessive, causes the damage of surrounding pipe wall or tissue and increases patient's unnecessary misery, through setting up spacing portion of injection syringe, is convenient for to the installation and the dismantlement of injection mechanism.

As a preferred embodiment in this embodiment, the push rod pushing unit includes a pair of supporting plates 18 fixedly connected to the inner wall of the bottom of the housing 4, a rotating hole is formed on one side of each of the supporting plates 18, a rotating shaft is rotatably connected through the pair of rotating holes, two ends of the rotating shaft respectively penetrate through two sides of the housing 4, a rotating handle 11 is fixedly connected to the rotating shaft, a gear 17 is fixedly sleeved on the rotating shaft, a horizontally arranged rack 16 is engaged on the gear 17, a T-shaped sliding slot is formed on the top of the rack 16, a guide sliding rail 15 is slidably connected to the T-shaped sliding slot, two ends of the guide sliding rail 15 are respectively fixedly connected to the inner walls of two sides of the housing 4, the push rod thrust unit is connected to the rack 16, the rotating handle 11 is rotated, the rotating handle 11 rotates the rotating shaft, the rotating shaft rotates the gear 17, the gear 17 is engaged with the rack 16, thereby driving the rack 16 to move along the guide sliding rail 15, the rack 16 moves to drive the push rod thrust unit to move, so that the contrast agent injection function is realized, the operation is simple, and the operation is labor-saving because the pair of rotating handles 11 are arranged, and the two hands can rotate.

In this embodiment, all cup jointed sheath 10 on the one end of a antitransmission handle 11, an antitransmission handle 11 sets up for the mirror image installation, through setting up sheath 10, has improved operator's travelling comfort, and an antitransmission handle 11 sets up for the mirror image installation, and operator's both hands can cross hard for it is more laborsaving during the rotation.

In this embodiment, the push rod thrust unit includes a fixing base 12 installed on the top of the rack 16, a pair of side plates 14 is fixedly connected to the top of the fixing base 12, a fixing shaft is fixedly connected between the pair of side plates 14, a push plate 19 is rotatably connected to the fixing shaft, a limiting hole is formed in the bottom of the push plate 19, a limiting groove 23 is formed in the position, corresponding to the limiting hole, of the top of the fixing base 12, a limiting pin 22 is inserted into the limiting groove 23, a U-shaped support rod 21 is fixedly connected to the top of the fixing base 12, a fixing sleeve 32 is rotatably sleeved on the U-shaped support rod 21, a thrust plate 20 is fixedly connected to the side wall of the fixing sleeve 32, a through hole is formed in one side of the push plate 19, an installation hole is formed in the side wall of the limiting pin 22, an installation shaft is fixedly connected to the installation hole, one end of the thrust plate 20 penetrates through the hole and is fixedly connected to the installation shaft, one end of the push rod 3 is attached to one side of the push plate 19, one end of the thrust rod 25 is attached to one side of the thrust plate 20, one end of the push rod 3 is attached to one side of the push plate 19, so that the push rod 3 is pushed to move when the push plate 19 moves, the injection function is pushed, one end of the thrust rod 25 is attached to the thrust plate 20, when the thrust rod 25 moves under stress, the thrust plate 20 is pushed to rotate around the U-shaped support rod 21, so that one end of the thrust plate 20 is lifted upwards, thereby driving the mounting shaft and the limit pin 22 to move upwards, one end of the limit pin 22 slides out of the limit groove 23, thereby realize that push pedal 19 removes spacingly, push pedal 19 uses the fixed axle to rotate as rotation center to realize that push pedal 19 removes and continue to promote the effect to push rod 3, simple structure realizes promoting and thrust effect, has avoided having blockked up because of patient's blood vessel, and mechanical thrust pushes the contrast medium to the patient is internal, causes the interior liquid of biliary tract excessive, causes the damage of surrounding pipe wall or tissue and increases patient's unnecessary misery.

In this embodiment, countersunk holes 24 are formed around the top of the fixing base 12, thread grooves are formed in the top of the rack 16 corresponding to the countersunk holes 24, countersunk screws are screwed in the thread grooves through the countersunk holes 24, and the fixing base 12 is conveniently and fixedly mounted on the rack 16 through the countersunk screws, the countersunk holes 24 and the thread grooves.

In this embodiment, the top of the push plate 19 is provided with an avoiding hole, and one end of the thrust rod 25 penetrates through the avoiding hole.

As a preferred embodiment in this embodiment, the syringe limiting portion includes a pair of U-shaped plates 7 symmetrically disposed and fixedly connected to the top of the base 9, corresponding sliding holes are formed on both sides of the U-shaped plates 7, a pair of side lugs 31 is fixedly connected to the side wall of the syringe 1, a positioning hole is formed on one side of each of the side lugs 31, a fixing pin 28 is disposed on one side of each of the U-shaped plates 7, one end of the fixing pin 28 penetrates through the positioning hole and the corresponding sliding hole, one end of each of the fixing pins 28 is fixedly connected to the same connecting rod 8, a fixing ring 29 is fixedly connected to each of the fixing pins 28, one side of the fixing ring 29 is attached to one side of the side lug 31, the syringe 1 is placed on the base 9 by providing the syringe limiting portion, the connecting rod 8 is pulled, the connecting rod 8 drives the two fixing pins 28 to slide along the U-shaped plates 7, when the positioning holes on the side lugs 31 are coaxial with the sliding holes, one end of the fixing pin 28 passes through the positioning hole and slides into the other sliding hole, so that the injection tube 1 is installed, the injection tube 1 is stably installed, and the operation is convenient.

In this embodiment, all cup jointed pressure spring 30 on a pair of fixed pin 28, pressure spring 30's both ends respectively with solid fixed

ring

29, 7 fixed connection of U-shaped plate, connecting rod 8 is the U-shaped structure, through setting up pressure spring 30, when loosening connecting rod 8, under pressure spring 30's elastic force effect, realize connecting rod 8, fixed pin 28, solid fixed ring 29 self return, easy operation, it is laborsaving to the realization compresses tightly the function.

As a preferred implementation manner in this embodiment, the bottom of the housing 4 is fixedly connected with a pair of telescopic rods 5, the telescopic ends of the pair of telescopic rods 5 are fixedly connected with a mounting plate 6, a plurality of mounting holes are formed in the top of the pair of mounting plates 6, the telescopic rods 5 are arranged to facilitate adjustment of the position heights of the auxiliary injection device and the auxiliary supporting assembly thereof, and the mounting plates 6 and the mounting holes are arranged to facilitate fixed mounting of the auxiliary injection device and the auxiliary supporting assembly thereof on the supporting frame.

The working principle of the invention is as follows:

the injection tube 1 is placed on the base 9, the connecting rod 8 is pulled, the connecting rod 8 drives the two fixing pins 28 to slide along the U-shaped plate 7, when the positioning hole on the lug 31 is coaxial with the sliding hole, one end of the fixing pin 28 penetrates through the positioning hole and slides into the other sliding hole, under the action of the elastic force of the compression spring 30, the connecting rod 8, the fixing pin 28 and the fixing ring 29 are automatically returned, so that the injection tube 1 is installed, the rotating handle 11 is rotated to drive the rotating shaft to rotate, the rotating shaft is rotated to drive the gear 17 to rotate, the gear 17 is meshed with the rack 16, so that the rack 16 is driven to move along the guide sliding rail 15, the rack 16 drives the fixing seat 12 to move, one end of the push rod 3 is attached to one side of the push plate 19, the push rod 3 is driven to move when the push plate 19 moves, the injection function is driven, when the pressure in the injection tube 1 is abnormal, pressure is greater than spacing spring 27's elasticity, make thrust piston 26, thrust rod 25 along the mounting groove, the perforation removes, thrust rod 25 one end and the laminating of thrust plate 20, when thrust rod 25 atress removed, it uses U-shaped bracing piece 21 to rotate as the rotation center to promote thrust plate 20, make thrust plate 20's one end upwards lift, thereby drive the installation axle, spacer pin 22 upwards removes, spacer pin 22's one end roll-off spacing groove 23, thereby it is spacing to realize that push pedal 19 removes, push pedal 19 uses the fixed axle to rotate as the rotation center, thereby realize that push pedal 19 removes and continues the promotion effect to push rod 3, moreover, the steam generator is simple in structure, realize promoting and the thrust effect, there is the jam because of patient's blood vessel has been avoided, mechanical thrust is to the internal contrast medium of injecting of patient, make into the interior liquid excess of biliary tract, cause the damage of surrounding pipe wall or tissue and increase patient's unnecessary misery.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An auxiliary injector of contrast medium for interventional department and an auxiliary supporting component thereof comprise an injection mechanism, an auxiliary injector for the movement of the injection mechanism and an auxiliary supporting component; injection mechanism includes injection syringe (1), set up in injection head (2), adaptation on injection syringe (1) one end are installed piston (13) in injection syringe (1), fixed connection in piston (13) one end on push rod (3), supplementary injection ware and supplementary supporting component including set up in base (9) of injection syringe (1) bottom, its characterized in that: one end of the piston (13) is provided with a mounting groove, one side inner wall of the mounting hole is provided with a through hole, a thrust piston (26) is installed in the mounting groove in a matched mode, one side of the thrust piston (26) is fixedly connected with a thrust rod (25), a limiting spring (27) is arranged in the mounting groove, two ends of the limiting spring (27) are respectively fixedly connected with the thrust piston (26) and the piston (13), the bottom of the base (9) is fixedly connected with a shell (4), the bottom inner wall of the shell (4) is provided with a push rod propelling part, the push rod propelling part comprises a push rod thrust unit and a push rod propelling unit which are connected with each other, and one ends of the push rod (3) and the thrust rod (25) are attached to the push rod propelling part; the injection tube limiting part is installed at the top of the base (9), scale marks are arranged on the side wall of the injection tube (1), and the injection tube (1) is a transparent tube.

2. The auxiliary injector of contrast medium and its auxiliary supporting component for interventional department according to claim 1, wherein: push rod propulsion unit include fixed connection in a pair of backup pad (18) on shell (4) bottom inner wall, it is a pair of the hole that changes has all been seted up to one side of backup pad (18), and is connected with the axis of rotation through a pair of the hole rotation that changes is connected with, the both ends of axis of rotation run through respectively the both sides of shell (4) to fixedly connected with changes handle (11), the fixed cover has connect gear (17) in the axis of rotation, rack (16) go up the meshing has the level to set up, T shape spout has been seted up at the top of rack (16), through T shape spout sliding connection has direction slide rail (15), the both ends difference fixed connection of direction slide rail (15) is in on the both sides inner wall of shell (4), push rod thrust unit with rack (16) are connected.

3. The auxiliary injector of contrast medium and its auxiliary supporting component of claim 2, wherein: one end of each pair of the rotating handles (11) is sleeved with a sheath (10), and the rotating handles (11) are arranged in a mirror image mode.

4. The auxiliary injector of contrast medium and its auxiliary supporting component of claim 2, wherein: the push rod thrust unit comprises a fixed seat (12) arranged on the top of the rack (16), the top of the fixed seat (12) is fixedly connected with a pair of side plates (14), a fixed shaft is fixedly connected between the pair of side plates (14), the fixed shaft is rotatably connected with a push plate (19), the bottom of the push plate (19) is provided with a limiting hole, the top of the fixed seat (12) is provided with a limiting groove (23) at the position corresponding to the limiting hole, a limiting pin (22) is inserted into the limiting groove (23) through the limiting hole, the top of the fixed seat (12) is fixedly connected with a U-shaped support rod (21), the U-shaped support rod (21) is rotatably sleeved with a fixed sleeve (32), the side wall of the fixed sleeve (32) is fixedly connected with a thrust plate (20), and one side of the push plate (19) is provided with a through hole, the utility model discloses a thrust device, including thrust plate (19), limiting pin (22), mounting hole fixedly connected with installation axle, the one end of thrust plate (20) runs through the via hole, and with installation axle fixed connection, the one end of push rod (3) with one side of push pedal (19) is laminated mutually, the one end of thrust rod (25) with one side of thrust plate (20) is laminated mutually.

5. The auxiliary injector of contrast medium and auxiliary supporting component thereof in interventional department according to claim 4, wherein: counter bores (24) are formed in the periphery of the top of the fixed seat (12), thread grooves are formed in the positions, corresponding to the counter bores (24), of the top of the rack (16), and counter screws are connected through the counter bores (24) and the thread grooves in a threaded mode.

6. The auxiliary injector of contrast medium and auxiliary supporting component thereof in interventional department according to claim 4, wherein: an avoiding hole is formed in the top of the push plate (19), and one end of the thrust rod (25) penetrates through the avoiding hole.

7. The auxiliary injector of contrast medium and its auxiliary supporting component for interventional department according to claim 1, wherein: the spacing portion of injection syringe includes fixed connection in a pair of U-shaped plate (7) that the symmetry on base (9) top set up, corresponding slide opening has been seted up to the both sides of U-shaped plate (7), a pair of limit ear (31) of fixedly connected with on the lateral wall of injection syringe (1), it is a pair of the locating hole has all been seted up to one side of limit ear (31), and is a pair of one side of U-shaped plate (7) all is provided with fixed pin (28), the one end of fixed pin (28) runs through the locating hole and a pair of the slide opening, it is a pair of the same connecting rod (8) of one end fixedly connected with of fixed pin (28), it is a pair of equal fixedly connected with solid fixed ring (29) on fixed pin (28), one side of solid fixed ring (29) with one side of limit ear (31) is laminated mutually.

8. The auxiliary injector of contrast medium and auxiliary supporting component thereof in interventional department according to claim 7, wherein: a pair of the fixing pins (28) are sleeved with compression springs (30), two ends of each compression spring (30) are respectively fixedly connected with the fixing rings (29) and the U-shaped plates (7), and the connecting rods (8) are of U-shaped structures.

9. The auxiliary injector of contrast medium and its auxiliary supporting component for interventional department according to claim 1, wherein: the bottom fixedly connected with of shell (4) is a pair of telescopic link (5), and is a pair of the equal fixedly connected with mounting panel (6) of flexible end of telescopic link (5), and is a pair of a plurality of mounting holes have all been seted up at the top of mounting panel (6).