CN107837439B - Integrated replaceable syringe imaging equipment - Google Patents

Abstract

The invention relates to the technical field of medical equipment and discloses an integrated replaceable syringe imaging equipment, which includes a base, a syringe, a control device, a stepper motor, a micro gas-liquid mixing pump, an outer cover, and a control panel. The top of the base is provided with The first fixed seat and the second fixed seat. The top of the first fixed seat is respectively provided with a round hole, an arc groove, and a clamping groove. The injection barrel is installed in the arc groove. The output shaft of the stepper motor is connected to one end of the coupling. , the other end of the coupling is connected to the screw rod, and the outer side of the screw rod is connected to the screw nut with matching threads. The air inlet end and the liquid inlet end of the micro gas-liquid mixing pump are respectively connected to the gas bottle, the liquid bottle, and the inlet of the liquid bottle. The liquid port and liquid outlet are respectively connected to the mixed liquid discharge end of the micro gas-liquid mixing pump and the second joint of the medical tee joint through medical hoses. This integrated replaceable syringe imaging equipment has the ability to automatically combine the contrast agent with air. Combined with the formation of uniformly sized and stable contrast agent microbubbles, it has the advantage of improving examination efficiency.

Description

Integrated replaceable syringe imaging equipment

Technical field

The present invention relates to the technical field of medical equipment, specifically an integrated replaceable syringe imaging equipment.

Background technique

At present, the contrast agent microbubbles used in this cardiac angiography examination project are mainly manually operated, using two 10 ml syringes connected by a three-way switch; the syringes are pushed back and forth 20 times by hand (one push back and forth is recorded as one hand vibration) , push frequency is about 80 times/minute), manual mixing of contrast agents is not only slow in efficiency and high in human resource costs, but also easily limited by the operator's technical proficiency and other factors. Different operators have different speeds when oscillating and mixing contrast agents. , different times, different injection speeds, injection delays, etc., can lead to different contrast effects and poor reproducibility of results. Due to the inability to achieve standardization and standardization, it is difficult to widely promote this technology in clinical practice. Therefore, it is necessary to develop an all-in-one replaceable syringe barrel imaging device.

Contents of the invention

(1) Technical problems solved

In view of the shortcomings of the existing technology, the present invention provides an all-in-one replaceable syringe contrast imaging device, which has the advantages of simple structure, convenient operation, automatic combination of contrast agent and air to form stable contrast agent microbubbles, and solves the problem of manual operation. Synthetic contrast agent microbubbles and artificial injection of contrast agent microbubbles lead to problems such as slow efficiency, high human resource costs, different contrast effects, and poor reproducibility of results.

(2) Technical solutions

In order to achieve the above object, the present invention provides the following technical solution: an integrated replaceable syringe barrel imaging equipment, including a base, a syringe barrel, a movable buckle, a control device, a stepper motor, a micro gas-liquid mixing pump, a liquid storage bottle, The medical tee joint, outer cover, control panel, and the top of the base are respectively provided with a first fixed seat and a second fixed seat. The top of the first fixed seat is provided with a round hole, an arc groove, and a clamping groove. The syringe barrel is installed In the arc groove, the output shaft of the stepper motor is connected to one end of the coupling, and the other end of the coupling is connected to the screw rod. The screw rod nut is threaded on the outside of the screw rod, and the screw nut is installed on the square of the clamping block. In the hole, a micro gas-liquid mixing pump and a control device are respectively provided on the upper and lower sides of the stepper motor. The air inlet end and the liquid inlet end of the micro gas-liquid mixing pump are respectively connected to a gas bottle and a liquid bottle. The liquid inlet and outlet of the liquid storage bottle are respectively connected to the mixed liquid discharge end of the micro gas-liquid mixing pump and the second joint of the medical three-way joint through medical hoses. The first joint of the medical three-way joint is connected to The injection end of the syringe barrel is connected, the outer cover is installed on the outside of the top of the base, the rear side of the outer cover is provided with a power interface and a ventilation hole, and the right side of the outer cover is provided with a through hole.

Preferably, the limiting handle on the top of the syringe barrel is embedded in the slot on the top of the first fixed seat.

Preferably, there is a clamping post at the bottom of the circular hole, which is connected to the bottom of the spring, and the spring can rotate ninety degrees around the clamping post, and the top of the spring is connected to the bottom of the movable buckle, and the other side of the top of the movable buckle is It is arc-shaped, the arc diameter is equal to the diameter of the syringe barrel, and the top of the movable buckle can contact the top of the syringe barrel.

Preferably, the bottom and top of the clamping block are provided with square holes and clamping holes respectively, the screw nut is fixed in the square hole through bolts, and the piston handle is embedded in the clamping hole.

Preferably, the medical three-way joint can be adjusted by a rotary switch to form two paths, one is: the first joint and the second joint are opened, and the third joint is closed; the other is: the first joint and the third joint are closed. The connector is open and the second connector is closed.

Preferably, the power input end of the control device is connected to the power interface through wires, the power output end of the control device is connected to the power input end of the micro gas-liquid mixing pump and the stepper motor respectively through wires, and the control panel is electrically connected to the control device. .

Preferably, the control device is also equipped with a microcontroller controller and a stepper motor driver. The microcontroller controller controls the forward and reverse rotation of the stepper motor through the stepper motor driver.

(3) Beneficial effects

Compared with the existing technology, the present invention provides an integrated replaceable syringe imaging device, which has the following beneficial effects:

This all-in-one replaceable syringe imaging device uses a structural connection between a micro gas-liquid mixing pump, a stepper motor, and a screw rod, and then automatically mixes the contrast agent and air to form stable contrast agent microbubbles through the micro gas-liquid mixing pump. , thereby avoiding the problems of slow efficiency, high human resource costs, different contrast effects, and poor result reproducibility of artificial contrast agents. At the same time, through the stepper motor and screw drive, the contrast agent microbubbles are stably injected into the patient's body, and at the same time When different patients undergo angiography examinations, the syringe can be replaced only, thereby improving examination efficiency and accuracy.

Description of the drawings

The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

Figure 1 is a schematic diagram of the internal structure of the present invention;

Figure 2 is a schematic diagram of the external structure of the present invention;

Figure 3 is a front view of the present invention;

Figure 4 is a top view of the present invention;

Figure 5 is a schematic diagram of the structural connection between the clamping block and the screw nut of the present invention;

Figure 6 is a schematic structural diagram of a miniature gas-liquid mixing pump of the present invention;

Figure 7 is a schematic diagram of the outer cover of the present invention;

Figure 8 is a cross-sectional view of the structure between the movable clamping position, the spring and the first fixed base of the present invention;

Figure 9 is a top view of the medical tee joint of the present invention;

Figure 10 is a schematic structural diagram of the syringe barrel, piston handle and clamping block of the present invention;

Figure 11 is a schematic diagram of the base structure of the present invention;

Figure 12 is a schematic diagram of the operation flow of the present invention.

In the picture: 1-base, 2-first fixed seat, 3-second fixed seat, 4-syringe barrel, 41-limit handle, 42-piston handle, 5-movable buckle, 6-control device, 7- Stepper motor, 8-coupling, 9-screw, 10-screw nut, 11-block, 111-square hole, 112-block hole, 12-micro gas-liquid mixing pump, 121-air inlet end, 122-liquid inlet end, 123-discharge mixed liquid end, 13-gas bottle, 14-liquid bottle, 15-liquid storage bottle, 16-medical hose, 17-medical tee connector, 171-first connector, 172-second connector, 173-third connector, 18-rotary switch, 19-infusion tube, 20-outer cover, 21-round hole, 211-clip, 212-spring, 22-through hole, 221-power interface, 222-ventilation hole, 23-control panel, 24-arc groove, 25-card slot.

Detailed ways

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. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Please refer to the accompanying drawings. The present invention provides a technical solution: an integrated replaceable syringe imaging device, including a base 1, a syringe 4, a movable buckle 5, a control device 6, a stepper motor 7, and a micro gas-liquid mixing device. Pump 12, liquid storage bottle 15, medical tee joint 17, outer cover 20, control panel 23. The top of the base 1 is provided with a first fixed seat 2 and a second fixed seat 3 respectively. The top of the first fixed seat 2 is provided with a round hole. 21. Arc groove 24 and clamping groove 25. The injection barrel 4 is installed in the arc groove 24. The output shaft of the stepper motor 7 is connected to one end of the coupling 8, and the other end of the coupling 8 is connected to the screw rod 9. The outer side of the screw rod 9 is threadedly connected to the screw nut 10. The screw nut 10 is installed in the square hole 111 of the clamping block 11. The upper and lower sides of the stepper motor 7 are respectively provided with a micro gas-liquid mixing pump 12 and a control device 6. The micro The air inlet end 121 and the liquid inlet end 122 of the gas-liquid mixing pump 12 are respectively connected to a gas bottle 13 and a liquid bottle 14. The liquid inlet and liquid outlet of the liquid bottle 15 are connected to the micro gas-liquid through medical hoses 16 respectively. The mixed liquid discharge end 123 of the mixing pump 12 is connected to the second joint 172 of the medical tee joint 17. The first joint 171 of the medical tee joint 17 is connected to the injection end of the syringe barrel 4. The outer cover 20 is installed on the outside of the top of the base 1. The rear side of 20 is provided with a power interface 221 and a ventilation hole 222 respectively, and the right side of the outer cover 20 is provided with a through hole 22. By designing the ventilation hole 222, it is ensured that after the outer cover 20 is installed, the working airflow and air pressure in the outer cover 20 are consistent with the outside world, and the ventilation hole 222 is provided. The arrangement of the hole 22 facilitates the normal expansion and contraction of the screw rod 9 and the clamping block 11.

The limiting handle 41 on the top of the syringe barrel 4 is embedded in the slot 25 on the top of the first fixed seat 2 to limit the position of the syringe barrel 4 to prevent the movement of the syringe barrel 4 when the piston handle 42 moves, thereby affecting the piston handle 42 to move the syringe barrel. The contrast microbubbles within 4 are ejected.

There is a clamping post 211 at the bottom of the round hole 21. The clamping post 211 is connected to the bottom of the spring 212, and the spring 212 can rotate ninety degrees around the clamping post 211. The top of the spring 212 is connected to the bottom of the movable buckle 5, and the top of the movable buckle 5 The other side is arc-shaped, the arc diameter is equal to the diameter of the syringe barrel 4, and the top of the movable buckle 5 can be in contact with the top of the syringe barrel 4, so that when replacing another syringe barrel 4, the movable buckle 5 can be lifted first and then rotated 90 degrees. At this time, the movable buckle 5 is parallel to the syringe 4 and has no contact. After the replacement is completed, lift the movable buckle 5 again and rotate it 90 degrees. When the restoring force of the spring 212 is small, the top of the movable buckle 5 is in contact with the syringe barrel 4. The top of the injection barrel 4 is squeezed and locked.

The bottom and top of the clamping block 11 are respectively provided with a square hole 111 and a clamping hole 112. The screw nut 10 is fixed in the square hole 111 through bolts, and the piston handle 42 is embedded in the clamping hole 112 to facilitate the forward and reverse rotation of the screw rod 9. The screw nut 10 is driven to move left and right, and the screw nut 10 then synchronously drives the block 11 to move left and right. The block 11 finally drives the piston handle 42 to move left and right, thereby controlling the syringe barrel 4 to extract or inject contrast microbubbles.

The medical three-way joint 17 can be adjusted by the rotary switch 18 to form two paths. One is: the first joint 171 and the second joint 172 are opened, and the third joint 173 is closed, that is, between the syringe barrel 4 and the liquid storage bottle 15 A loop is formed. When the injection of contrast microbubbles in the syringe barrel 4 is completed, the stepper motor 7 drives the screw rod 9 to reverse, thereby driving the piston handle 42 to move backward, and the piston handle 42 sucks the contrast agent in the liquid storage bottle 15 Microbubbles, when the same imaging examination items need to be performed on another patient, only the infusion tube 19 and the injection needle that the patient directly contacts can be replaced, which can reduce the usage of the syringe 4; the other is: the first connector 171 is opened to the third joint 173, and the second joint 172 is closed, that is, the syringe barrel 4 and the infusion tube 19 form a passage, and the other end of the infusion tube 19 is connected to the patient's intravenous injection end through the injection needle, so as to facilitate the input of instructions to the control device 6 through the control panel 23 signal, the control device 6 then controls the inlet motor 7 to drive the screw rod 9 to rotate forward, which in turn drives the piston handle 42 to move forward, and the piston handle 42 injects the contrast agent microbubbles in the injection barrel 4 in the patient's body.

The power input end of the control device 6 is connected to the power interface 221 through wires, the power output end of the control device 6 is connected to the power input end of the micro gas-liquid mixing pump 12 and the stepper motor 7 respectively through wires, and the control panel 23 is electrically connected to the control device 6 , the user can input the forward and reverse rotation command of the stepper motor 7 or the start command of the micro gas-liquid mixing pump 12 on the control panel 23. The control panel 23 then transmits the command signal to the control device 6, and the control device 6 then controls the forward and reverse rotation of the stepper motor 7. Reverse or start the micro gas-liquid mixing pump 12. The micro gas-liquid mixing pump 12 can fully mix the air and the contrast agent to form stable contrast agent microbubbles.

The control device 6 is also equipped with a microcontroller controller and a stepper motor driver. The microcontroller controller controls the forward and reverse rotation of the stepper motor 7 through the stepper motor driver.

When in use, the gas bottle 13 and the liquid bottle 14 are respectively equipped with purified air and contrast agent, and the volume content ratio of air and contrast agent is 1:9. The control panel 23 controls the stepper motor 7 to start, There is also a button to close the micro gas-liquid mixing pump 12 and a start button to control the micro gas-liquid mixing pump 12. First, the micro gas-liquid mixing pump 12 is started. The micro gas-liquid mixing pump 12 fully mixes the air and the contrast agent to form stable contrast agent microbubbles, and then the contrast agent microbubbles are The bubble is transmitted to the liquid storage bottle 15 through the medical hose 16, and a loop is formed between the syringe barrel 4 and the liquid storage bottle 15 through the adjustment of the rotary switch 18, and then the stepper motor 7 reverse start button is pressed, and the stepper motor 7 drives the The screw rod 9 rotates in reverse, thereby driving the piston handle 42 to move backward. The piston handle 42 sucks the contrast agent microbubbles in the liquid storage bottle 15 into the syringe barrel 4. Press the stepper motor 7 to close the button, and then rotate the The switch 18 is adjusted to form a passage between the syringe barrel 4 and the infusion tube 19. The other end of the infusion tube 19 is connected to the patient's intravenous injection end through the injection needle. Press the forward start button of the stepper motor 7 again, and the stepper motor 7 rotates at a low speed to drive the screw rod. 9 rotates forward, and then drives the piston handle 42 to slowly push forward, and the piston handle 42 then slowly injects the contrast agent microbubbles in the syringe barrel 4 into the patient's body to facilitate subsequent examination of imaging projects.

In particular, the connections between the medical hose 16, the micro gas-liquid mixing pump 12, the liquid storage bottle 15, and the medical tee joint 17 are all threaded, and the micro gas-liquid mixing pump 12 is fixed to the top of the base 1 through bolts, where The stepper motor 7 is fixed on the top of the base 1 through fastening buckles and bolts.

To sum up, this all-in-one replaceable syringe imaging equipment uses a structural connection between a micro gas-liquid mixing pump, a stepper motor, and a screw rod, and then automatically mixes the contrast agent and air through the micro gas-liquid mixing pump to form a stable Contrast agent microbubbles, thus avoiding the problems of slow efficiency, high human resource costs, different contrast effects, and poor result reproducibility of artificial contrast agents. At the same time, the contrast agent microbubbles are stably injected through stepper motors and screw drives. into the patient's body, thereby improving examination efficiency and accuracy.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or apparatus that includes the stated element.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (4)

1. Integral type removable syringe radiography equipment, including base (1), syringe (4), activity buckle (5), controlling means (6), step motor (7), miniature gas-liquid mixing pump (12), hold liquid bottle (15), medical three way connection (17), dustcoat (20), control panel (23), its characterized in that: the utility model discloses a medical three-way injection device, which is characterized in that a first fixing seat (2) and a second fixing seat (3) are respectively arranged at the top of a base (1), round holes (21), circular arc grooves (24) and clamping grooves (25) are respectively arranged at the top of the first fixing seat (2), an injection cylinder (4) is arranged in the circular arc grooves (24), an output shaft of a stepping motor (7) is connected with one end of a coupling (8), the other end of the coupling (8) is connected with a screw rod (9), the outer side of the screw rod (9) is matched with a screw rod nut (10) in a threaded manner, the screw rod nut (10) is arranged in a square hole (111) of a clamping block (11), micro gas-liquid mixing pumps (12) and a control device (6) are respectively arranged at the upper side and the lower side of the stepping motor (7), a gas inlet end (121) and a liquid inlet end (122) of the micro gas-liquid mixing pumps (12) are respectively connected with a gas cylinder (13) and a liquid bottle (14), a liquid inlet and a liquid outlet of the liquid bottle (15) are respectively connected with a liquid discharge mixing end (123) of the micro gas-liquid mixing pump (12) through medical hoses (16), a medical three-way joint (17) and a third joint (17) of the three-way joint (17) is arranged at the outer side of the injection cylinder (1) and the base (20), the rear side of the outer cover (20) is respectively provided with a power interface (221) and a vent hole (222), and the right side of the outer cover (20) is provided with a through hole (22); a limit handle (41) at the top of the injection cylinder (4) is embedded in a clamping groove (25) at the top of the first fixing seat (2); the bottom and the top of the clamping block (11) are respectively provided with a square hole (111) and a clamping hole (112), the screw rod nut (10) is fixed in the square hole (111) through a bolt, and the piston handle (42) is embedded in the clamping hole (112); the medical three-way connector (17) can be adjusted by a rotary switch (18) to form two of the passages, one of which is: the first joint (171) and the second joint (172) are opened, and the third joint (173) is closed; the other is: the first connector (171) and the third connector (173) are opened, and the second connector (172) is closed.

2. The integrated replaceable syringe imaging apparatus of claim 1, wherein: the bottom of the round hole (21) is provided with a clamping column (211), the clamping column (211) is connected with the bottom of the spring (212), the spring (212) can rotate ninety degrees around the clamping column (211), the top of the spring (212) is connected with the bottom of the movable buckle (5), the other side of the top of the movable buckle (5) is arc-shaped, the diameter of the arc is equal to the diameter of the injection cylinder (4), and the top of the movable buckle (5) can be contacted with the top of the injection cylinder (4).

3. The integrated replaceable syringe imaging apparatus of claim 1, wherein: the power input end of the control device (6) is connected with the power interface (221) through a wire, the power output end of the control device (6) is respectively connected with the power input ends of the miniature gas-liquid mixing pump (12) and the stepping motor (7) through wires, and the control panel (23) is electrically connected with the control device (6).

4. The integrated replaceable syringe imaging apparatus of claim 1, wherein: the control device (6) is internally provided with a singlechip controller and a stepping motor driver, and the singlechip controller controls the forward and reverse rotation of the stepping motor (7) through the stepping motor driver.