CN113398364B - Cardiovascular internal medicine contrast agent injector - Google Patents

Cardiovascular internal medicine contrast agent injector Download PDF

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Publication number
CN113398364B
CN113398364B CN202110826609.4A CN202110826609A CN113398364B CN 113398364 B CN113398364 B CN 113398364B CN 202110826609 A CN202110826609 A CN 202110826609A CN 113398364 B CN113398364 B CN 113398364B
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fixed
plate
piston
rod
contrast agent
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CN202110826609.4A
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CN113398364A (en
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不公告发明人
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Anntom Medical Ltd
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Anntom Medical Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/007Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests for contrast media
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/44Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media
    • A61M5/445Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media the media being heated in the reservoir, e.g. warming bloodbags

Abstract

The invention discloses a contrast agent injector for cardiovascular internal medicine, which comprises an injection tube, an injection needle and a piston plate I, wherein a piston rod is fixed on the lower surface of the piston plate I, and the lower surface of the injection tube is provided with a first opening which is used for the piston rod to pass through and is connected in a sliding way, and the contrast agent injector is characterized in that: a heat conduction pipe is fixed on the inner wall of the injection tube, and heat conduction liquid is filled between the heat conduction pipe and the injection tube; the piston rod is driven to move by the heat conducting liquid, and the heat conducting liquid is heated by the heat conducting liquid; the angle adjustment part is including fixing the connecting seat at the injection tube lower surface, and the surface dead axle of connecting seat rotates and is connected with the pivot, and the surface of pivot is fixed with the one end of directional pole, and the fixed surface of pivot has the worm wheel, and the lower surface dead axle of injection tube rotates and is connected with the worm wheel.

Description

Cardiovascular internal medicine contrast agent injector
Technical Field
The invention relates to the field of medical cardiovascular, in particular to a contrast agent injector for cardiovascular medicine.
Background
The contrast media injector currently used clinically is similar to a common syringe.
Because the contrast medium is rested in the container for a long time, thereby after being extracted to the syringe, the contrast medium is comparatively thick, and the piston promotes the resistance great when the injection, and the steady entering human body of difficult control contrast medium is internal, and the security is lower, and traditional injector simultaneously is difficult to heat the contrast medium and heaies up, leads to the contrast medium that the temperature is lower to be getting into the human body after, easily causes patient's discomfort.
Disclosure of Invention
The invention aims to provide a contrast medium injector for cardiovascular medicine, aiming at solving the defects of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a cardiovascular internal medicine contrast medium syringe, includes injection cylinder (1), syringe needle (2) and piston board (3), the lower surface of piston board (3) is fixed with piston rod (4), the lower surface of injection cylinder (1) is seted up and is used for piston rod (4) to pass and sliding connection's opening one, its characterized in that: a heat conduction pipe (5) is fixed on the inner wall of the injection cylinder (1), and heat conduction liquid (6) is filled between the heat conduction pipe (5) and the injection cylinder (1); the piston rod (4) is connected with the piston plate I (3) in a transmission way, and the piston plate I (3) is driven to move along with rotation or only move when the piston rod (4) moves;
the switching component comprises an orientation rod (7) and an angle adjusting component for adjusting the orientation rod (7), an outer spline groove (8) is formed in the surface of the piston rod (4), and an inner spline sleeve (9) is sleeved on the groove wall of the outer spline groove (8) in a sliding mode; the surface of the internal spline sleeve (9) is fixedly and rotatably connected with a connecting plate (10) in a fixed-axis manner, and a supporting plate (11) is fixed on the surface of the connecting plate (10); a sleeve block (12) is sleeved on the surface of the directional rod (7) in a sliding manner, a rack plate (13) is hinged to the surface of the sleeve block (12), and a groove used for the rack plate (13) to penetrate through and be connected in a sliding manner is formed in the surface of the supporting plate (11); a gear (14) meshed with the rack plate (13) is fixed on the surface of the internal spline sleeve (9), a push-pull plate (15) is fixedly and rotatably connected to the lower surface of the piston rod (4), a first spring (16) is sleeved on the surface of the piston rod (4), and two ends of the first spring (16) are respectively abutted to the opposite sides of the support plate (11) and the push-pull plate (15); the angle adjusting part comprises a connecting seat (25) fixed on the lower surface of the injection cylinder (1), a rotating shaft (26) is connected to the surface of the connecting seat (25) in a fixed-axis rotating mode, the surface of the rotating shaft (26) is fixed to one end of the orientation rod (7), a worm wheel (27) is fixed to the surface of the rotating shaft (26), and a worm (28) connected with the worm wheel (27) in a fixed-axis rotating mode is connected to the lower surface of the injection cylinder (1).
In the scheme, the heat pipe device further comprises a ring plate (23) which is connected to the inner wall of the heat conduction pipe (5) in a fixed-shaft rotating mode, a disturbance rod (24) is fixed to the upper surface of the ring plate (23), and a second opening which is used for enabling the disturbance rod (24) to penetrate through and is connected with the piston plate I (3) in a sliding mode is formed in the surface of the piston plate I.
In the scheme, a cover body (29) is fixed at the lower end of the injection cylinder (1).
In the scheme, a handle (30) is fixed at the lower end of the worm (28).
In the scheme, the heat conduction liquid (6) is heat conduction oil.
Has the advantages that:
1. in the invention, because the contrast medium is statically placed in the container for a long time, the contrast medium in the syringe is viscous after being extracted, and the pushing resistance of the piston plate I is larger during injection, the piston rod and the piston plate I can reciprocate and rotate in a small range while reciprocating up and down, so that the contrast medium in the syringe can be disturbed, the contrast medium is uniformly dispersed, and the injection can be carried out by pushing the piston plate I.
2. According to the invention, the ring plate and the disturbing rod rotate in a reciprocating manner, and the disturbing rod penetrates through the contrast medium, so that the stirring dead angle is reduced, and the contrast medium is stirred vigorously, fully and uniformly.
3. According to the invention, by controlling the inclination angle of the orientation rod, when an operator applies the same push-pull acting force to the push-pull plate, the reciprocating transverse moving distance of the rack plate can be increased due to the change of the inclination angle of the orientation rod, so that the rotating speed of the reciprocating rotation of the first piston plate and the disturbance rod can be increased, the same acting force is applied, the stirring efficiency is improved by adjusting the inclination angle of the orientation rod, and the contrast agent stirring device can adapt to the stirring process of contrast agents in different viscous states under the condition of relative labor saving.
4. The heating tube heats the heat conducting liquid which flows circularly while stirring, the heated heat conducting liquid can transfer heat to the heat conducting tube, and the heat conducting tube transfers the heat to the contrast agent, so that the comfort of a patient is improved during injection; because the heat conducting liquid flows circularly, the heated heat conducting liquid can uniformly transfer heat to the heat conducting pipe, thereby avoiding the pain of a patient caused by overhigh local temperature in the contrast agent during injection; the first piston plate reciprocates up and down in a small range, so that the contrast agent also reciprocates up and down in a small range, the contrast agent can be fully contacted with the inner wall of the heat conduction pipe, and the heat exchange efficiency is improved.
5. After the contrast agent is stirred, the orientation rod is rotated to the vertical state and is in the state shown in fig. 5, and then the push-pull plate is pushed, so that the sparse and heated contrast agent can be slowly pushed into a human body.
Drawings
FIG. 1 is a front view of the structure of the present invention in a first state;
FIG. 2 is an enlarged view of the structure of FIG. 1 at A in accordance with the present invention;
FIG. 3 is a right side view of the structure of FIG. 2 in accordance with the present invention;
FIG. 4 is a second state elevational view of the structure of the present invention;
FIG. 5 is a third state elevational view of the structure of the present invention;
figure 6 is an isometric view of a structure of the present invention.
Detailed Description
Referring to fig. 1 to 6, the present invention provides a technical solution: a cardiovascular internal medicine contrast agent injector comprises an injection tube 1, an injection needle 2 and a piston plate 3, wherein a piston rod 4 is fixed on the lower surface of the piston plate 3, before injection, the injection needle 2 is inserted into a container storing a contrast agent, then a part of the contrast agent is extracted into the injection tube 1 by pulling the piston rod 4, the injection needle 2 is upwards moved to the state shown in figure 1, at the moment, the disturbance and stirring of the contrast agent in the injection tube 1 can be started, an opening I is formed in the lower surface of the injection tube 1 and used for enabling the piston rod 4 to penetrate through and be in sliding connection with the opening I, a heat conduction tube 5 is fixed on the inner wall of the injection tube 1, heat conduction liquid 6 is filled between the heat conduction tube 5 and the injection tube 1, the injector further comprises a heating component used for driving the heat conduction liquid 6 to circularly flow and heat up, the heat conduction liquid 6 between the injection tube 1 and the heat conduction tube 5 can circularly flow through the heating component, when the heating component is used, the heat conduction liquid 6 which circularly flows is heated can transfer heat to the heat conduction tube 5 and then transfer the heat to the contrast agent, so that comfort of a patient can be improved during injection; the heat conducting liquid 6 is in circulating flow, so that the heated heat conducting liquid 6 can uniformly transfer heat to the heat conducting pipe 5, the local temperature in the contrast medium is prevented from being too high, pain of a patient is caused during injection, the piston plate I3 can move while rotating or only moves when the piston rod 4 moves, the heating component is in transmission connection with the switching component, when the contrast medium in the injection tube 1 is stirred in a disturbing manner, the piston plate I3 can move while rotating when the piston rod 4 is pulled up and down in a small range by operating the switching component, the contrast medium in the injection tube 1 can be disturbed, so that the contrast medium is uniformly dispersed, the injection is performed by pushing the piston plate I3, after the contrast medium is stirred, the piston plate I3 only moves by reversely operating the switching component, an operator firstly pushes the piston rod 4 upwards, so that the air in the injection tube 1 is exhausted, then the injection tube 2 is inserted into a corresponding position of the skin of the patient, and then the piston rod 4 is continuously pushed, and the sparse contrast medium with the temperature being raised can be slowly pushed into the body, and the injection needle can be completed.
In this embodiment, as shown in fig. 1, 2, 3, 4 and 5, the switching component includes a directional rod 7 and an angle adjusting component for adjusting the directional rod 7, during stirring, the directional rod 7 is kept in an inclined state by operating the angle adjusting component, and during injection, the directional rod 7 is kept in a vertical state, the surface of the piston rod 4 is provided with an external spline groove 8, the groove wall of the external spline groove 8 is slidably sleeved with an internal spline sleeve 9, the surface of the internal spline sleeve 9 is fixedly connected with a connecting plate 10 in a fixed axis manner, the surface of the connecting plate 10 is fixed with a supporting plate 11, the surface of the directional rod 7 is slidably sleeved with a sleeve block 12, the surface of the sleeve block 12 is hinged with a rack plate 13, the surface of the supporting plate 11 is provided with a groove for the rack plate 13 to pass through and be slidably connected, the surface of the internal spline sleeve 9 is fixed with a gear 14 engaged with the rack plate 13, when the directional rod 7 is kept in an inclined state, the supporting plate 11 moves up and down and the piston rod 7 slides in an inclined state, the inclined state is arranged, the piston rod 7 is driven by the spline plate 14 to move back and forth through the small spline groove 14, the reciprocating movement of the piston rod and forth, the piston rod is driven by the small spline plate 14, the piston rod 9 and back and forth, the piston rod moves back and forth through the small gear plate 14, and forth, the reciprocating movement range of the piston rod is driven by the small gear plate 14, the piston rod 1 and forth, the small gear plate, the piston rod is driven by the small gear plate, the small gear plate 14, the piston rod moves back and forth, the piston rod 9, the piston rod moves back and forth, the piston rod moves back and forth; when the orientation rod 7 is kept in a vertical state, the orientation rod 7 is in a vertical state, so that the movement of the rack plate 13 is limited, the rotation of the gear 14 can be limited by limiting the movement of the rack plate 13, the rotation of the piston rod 4 and the piston plate I3 is limited by limiting the rotation of the gear 14 due to the fixed relation between the gear 14 and the inner spline sleeve 9 and the sliding sleeve relation between the inner spline sleeve 9 and the outer spline groove 8, so that when an operator pushes the push-pull plate 15, the piston plate I3 only moves axially, the condition that when the piston plate I3 rotates, the contrast agent is driven to generate a vortex, and the contrast agent in the vortex state enters a human body is avoided, the injection safety is improved due to the fact that discomfort of a human body possibly caused is caused, the push-pull plate 15 is connected to the lower surface of the piston rod 4 in a fixed-axis rotating mode, the first spring 16 is sleeved on the surface of the piston rod 4, two end portions of the first spring 16 are respectively abutted to the opposite sides of the supporting plate 11 and the push-pull plate 15, the push-pull plate 15 is pushed and pulled back and forth in a small range, in the process, the supporting plate 11 can move back and forth up and down through elastic tension provided by the first spring 16, the supporting plate 11 abuts against the lower surface of the injection cylinder 1, and the push-pull plate 15 can continue to move towards the direction of the injection cylinder 1 by means of compressibility of the first spring 16, so that the contrast agent in the injection cylinder 1 can be extruded out.
In this embodiment, as shown in fig. 1, 4 and 5, the heating component includes a liquid storage container 17 fixed on the lower surface of the injection cylinder 1, a piston plate two 18 is slidably connected to the inner wall of the liquid storage container 17, a spring two 19 is commonly fixed between the piston plate two 18 and the liquid storage container 17, the rack plate 13 is located on the side of the piston plate two 18, a heating pipe 20 is fixed on the inner wall of the liquid storage container 17, two circulation pipes 21 are commonly fixed between the injection cylinder 1 and the heating pipe 20, and a check valve 22 is provided on each of the two circulation pipes 21, so that when the rack plate 13 reciprocates left and right, the piston plate two 18 reciprocates left and right through the elastic tension provided by the spring two 19, the piston plate two 18 reciprocates left and right, and the flow direction of the liquid is limited by the two check valves 22, the heat-conducting liquid 6 between the injection cylinder 1 and the heat-conducting pipe 5 circulates through the liquid storage container 17, and when the heat-conducting pipe 20 heats the circularly-flowing heating liquid 6.
In this embodiment, as shown in fig. 1, 4 and 5, the imaging device further includes a ring plate 23 rotatably connected to the inner wall of the heat conducting pipe 5 in a fixed axis manner, a disturbance rod 24 is fixed to the upper surface of the ring plate 23, a second opening is formed in the surface of the first piston plate 3, the second opening is used for the disturbance rod 24 to pass through and be slidably connected with the first opening, the first piston plate 3 rotates in a reciprocating manner, and the first piston plate 3 and the disturbance rod 24 are slidably connected with each other in a sleeved manner, so that the ring plate 23 and the disturbance rod 24 rotate in a reciprocating manner, and the disturbance rod 24 penetrates through the contrast medium, so that the stirring dead angle is reduced, and the contrast medium is stirred acutely, fully and uniformly.
In this embodiment, as shown in fig. 1, 4 and 5, the angle adjusting component includes a connecting seat 25 fixed on the lower surface of the injection tube 1, a rotating shaft 26 is connected to the surface of the connecting seat 25 in a fixed-axis manner, the surface of the rotating shaft 26 is fixed to one end of the orientation rod 7, a worm wheel 27 is fixed to the surface of the rotating shaft 26, a worm 28 connected to the worm wheel 27 in a fixed-axis manner is connected to the lower surface of the injection tube 1 in a fixed-axis manner, the worm wheel 27 and the rotating shaft 26 are driven to rotate by operating the worm 28, the inclination angle of the orientation rod 7 can be controlled by fixing the rotating shaft 26 to the orientation rod 7 and further by twisting the handle 30, and the adjusted orientation rod 7 can be fixed by self-locking after transmission between the worm 28 and the worm wheel 27.
In this embodiment, as shown in fig. 1, 4 and 5, a cover 29 is fixed to the lower end of the syringe 1, and the cover 29 is provided to cover the components at the bottom of the syringe 1, thereby improving the aesthetic appearance of the injection device while ensuring the above-mentioned effective effects.
In this embodiment, as shown in fig. 1, 4 and 5, a handle 30 is fixed to a lower end of the worm 28, so that an operator can operate the worm 28 to rotate by covering and twisting the handle 30.
In this embodiment, as shown in fig. 1, 4 and 5, the heat conducting liquid 6 is heat conducting oil, which has a better heat transfer efficiency, so as to conveniently and rapidly and uniformly transfer the heat generated by the heating tube 20 to the contrast medium in the syringe 1.
The working principle is as follows: when the cardiovascular medical contrast agent injector is used, the injection needle 2 is inserted into a container containing contrast agent, then a part of the contrast agent is extracted into the injection tube 1 by pulling the push-pull plate 15, and then the injection needle 2 is upwards and starts to the state shown in figure 1;
because the contrast agent is statically placed in the container for a long time, after the contrast agent is extracted, the contrast agent in the syringe 1 is viscous, the pushing resistance of the piston plate I3 is large during injection, and further, as shown in fig. 1 and 4, an operator pushes and pulls the push-pull plate 15 to and fro in a small range, and in the process, the support plate 11 moves back and forth up and down through the elastic tension provided by the spring I16, the support plate 11 moves back and forth up and down, and the rack plate 13 moves back and forth left and right relative to the support plate 11 through the arrangement of the orientation rod 7 in an inclined state in a sliding sleeved mode through the sleeve block 12, and the rack plate 13 moves back and forth left and right to drive the gear 14 to rotate back and forth, and the gear 14 rotates back and forth and drives the piston rod 4 and the piston plate I3 to reciprocate up and down in a small range through the fixed relationship between the gear 14 and the inner spline sleeve 9 and the sliding sleeved relationship between the inner spline sleeve 9 and the outer spline groove 8 to rotate back and forth, so that the contrast agent in the syringe 1 can be disturbed and uniformly dispersed, and the injection can be injected through pushing the piston plate I3;
the first piston plate 3 rotates in a reciprocating manner, and the first piston plate 3 and the disturbing rod 24 are in sliding sleeved connection, so that the ring plate 23 and the disturbing rod 24 are driven to rotate in a reciprocating manner, the disturbing rod 24 penetrates through the contrast medium, the stirring dead angle is reduced, and the contrast medium is stirred vigorously, fully and uniformly;
before the push-pull plate 15 is pushed and pulled in a small range, the worm 28 can be driven to rotate by twisting the handle 30, the worm wheel 27 and the rotating shaft 26 are driven to rotate by rotating the worm 28, the rotating shaft 26 is fixed with the directional rod 7, and further, the inclination angle of the directional rod 7 can be controlled by twisting the handle 30, so that when an operator applies the same push-pull acting force to the push-pull plate 15, the reciprocating transverse moving distance of the rack plate 13 can be increased due to the change of the inclination angle of the directional rod 7, the reciprocating rotation speed of the piston plate I3 and the disturbance rod 24 can be increased, the same acting force is applied, the stirring efficiency is improved by adjusting the inclination angle of the directional rod 7, and the stirring process of the contrast agent in different viscous states can be adapted under the condition of relative labor saving;
while stirring, the rack plate 13 reciprocates left and right, and the elastic tension provided by the second spring 19 makes the second piston plate 18 reciprocate left and right, the second piston plate 18 reciprocates left and right, and the two check valves 22 limit the flow direction of the liquid, so that the heat-conducting liquid 6 between the syringe 1 and the heat-conducting pipe 5 circularly flows through the liquid storage container 17, and when the heat-conducting liquid 6 circularly flows through the liquid storage container 17, the heat-conducting liquid 6 after heating can transfer the heat to the heat-conducting pipe 5 through the heating pipe 20, and the heat-conducting pipe 5 transfers the heat to the contrast medium, so that the comfort of a patient is improved during injection; because the heat conducting liquid 6 circularly flows, the heated heat conducting liquid 6 can uniformly transfer heat to the heat conducting pipe 5, and the pain of a patient caused by overhigh local temperature in the contrast medium during injection is avoided; the piston plate I3 reciprocates up and down in a small range, so that the contrast agent also reciprocates up and down in a small range, the contrast agent can be fully contacted with the inner wall of the heat conduction pipe 5, and the heat exchange efficiency is improved.
After the contrast agent is stirred, the handle 30 is reversely twisted, so that the orientation rod 7 rotates to a vertical state and reaches a state shown in fig. 5, at the moment, an operator firstly pushes the push-pull plate 15 upwards to discharge air in the injection tube 1, then the injection needle 2 is inserted into a corresponding position of the skin of a patient, and then the push-pull plate 15 is continuously pushed, so that the sparse and heated contrast agent can be slowly pushed into the human body, in the process, the orientation rod 7 is in the vertical state, further, the movement of the rack plate 13 is limited, the rotation of the gear 14 can be similarly limited by limiting the movement of the rack plate 13, the gear 14 and the inner spline sleeve 9 are in a fixed relation, the inner spline sleeve 9 and the outer spline groove 8 are in a sliding sleeve connection relation, further, the rotation of the gear 14 is limited, the piston rod 4 and the piston plate 3 are also limited, when the operator pushes the push-pull plate 15, the piston plate 3 only moves axially, the situation that the contrast agent is driven to generate eddy current when the piston plate 3 rotates, the contrast agent in the eddy current state enters the human body, and the safety of injection is improved.

Claims (5)

1. The utility model provides a cardiovascular internal medicine contrast medium syringe, includes injection cylinder (1), syringe needle (2) and piston board (3), the lower surface of piston board (3) is fixed with piston rod (4), the lower surface of injection cylinder (1) is seted up and is used for piston rod (4) to pass and sliding connection's opening one, its characterized in that: a heat conduction pipe (5) is fixed on the inner wall of the injection tube (1), and heat conduction liquid (6) is filled between the heat conduction pipe (5) and the injection tube (1); the piston is characterized by also comprising a heating component for driving heat-conducting liquid (6) to circularly flow and heat up, and a switching component for enabling the first piston plate (3) to move while rotating or only move when the piston rod (4) moves, wherein the heating component is in transmission connection with the switching component;
the switching component comprises an orientation rod (7) and an angle adjusting component for adjusting the orientation rod (7), an outer spline groove (8) is formed in the surface of the piston rod (4), and an inner spline sleeve (9) is sleeved on the groove wall of the outer spline groove (8) in a sliding mode; the surface of the inner spline sleeve (9) is fixedly and rotatably connected with a connecting plate (10) in a shaft-fixed mode, and a supporting plate (11) is fixed on the surface of the connecting plate (10); a sleeve block (12) is sleeved on the surface of the directional rod (7) in a sliding manner, a rack plate (13) is hinged to the surface of the sleeve block (12), and a groove used for the rack plate (13) to penetrate through and be connected in a sliding manner is formed in the surface of the supporting plate (11); a gear (14) meshed with the rack plate (13) is fixed on the surface of the internal spline sleeve (9), a push-pull plate (15) is fixedly and rotatably connected to the lower surface of the piston rod (4), a first spring (16) is sleeved on the surface of the piston rod (4), and two ends of the first spring (16) are respectively abutted to the opposite sides of the support plate (11) and the push-pull plate (15); the angle adjusting part comprises a connecting seat (25) fixed on the lower surface of the injection cylinder (1), a rotating shaft (26) is connected to the surface of the connecting seat (25) in a fixed-axis rotating mode, the surface of the rotating shaft (26) is fixed to one end of the orientation rod (7), a worm wheel (27) is fixed to the surface of the rotating shaft (26), and a worm (28) connected with the worm wheel (27) in a fixed-axis rotating mode is connected to the lower surface of the injection cylinder (1).
2. The cardiovascular medical contrast agent injector of claim 1, wherein: still including dead axle rotation connection in the crown plate (23) of heat pipe (5) inner wall, the upper surface of crown plate (23) is fixed with disturbance pole (24), the surface of piston plate one (3) is seted up and is used for disturbance pole (24) pass and sliding connection's opening two.
3. The cardiovascular medical contrast agent injector of claim 1, wherein: the lower end of the injection cylinder (1) is fixed with a cover body (29).
4. The cardiovascular medical contrast agent injector of claim 1, wherein: a handle (30) is fixed at the lower end of the worm (28).
5. The cardiovascular medical contrast agent injector of claim 1, wherein: the heat conducting liquid (6) is heat conducting oil.
CN202110826609.4A 2021-07-21 2021-07-21 Cardiovascular internal medicine contrast agent injector Active CN113398364B (en)

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