CN107837439A - The replaceable injection tube contrast apparatus of integral type - Google Patents

Abstract

The invention relates to the technical field of medical equipment, and discloses an integrated replaceable syringe radiography device, which includes a base, a syringe, a control device, a stepping motor, a miniature gas-liquid mixing pump, an outer cover, and a control panel. 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 card groove, the injection barrel is installed in the arc groove, and the output shaft of the stepping motor is connected to one end of the coupling , the other end of the coupling is connected with the screw, the outer side of the screw is connected with the screw nut, the air inlet and the liquid inlet of the miniature gas-liquid mixing pump are respectively connected with the inlet of the gas bottle, the liquid bottle, and the liquid storage bottle The liquid port and the liquid outlet are respectively connected to the discharge mixed liquid end of the miniature gas-liquid mixing pump and the second joint of the medical three-way joint through medical hoses. Combined with the formation of uniform size and stable contrast agent microbubbles, the advantages of improving inspection efficiency.

Description

Integrated replaceable syringe imaging device

technical field

The invention relates to the technical field of medical equipment, in particular to an integrated replaceable syringe radiography equipment.

Background technique

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

Contents of the invention

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the present invention provides an integrated replaceable syringe radiography 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 slow efficiency, high human resource costs, different contrast effects, and poor repeatability of results.

(2) Technical solutions

In order to achieve the above object, the present invention provides the following technical solutions: an integrated replaceable syringe radiography device, including a base, a syringe, a movable buckle, a control device, a stepping motor, a miniature gas-liquid mixing pump, a liquid storage bottle, The medical tee joint, the outer cover, the control panel, and the top of the base are respectively provided with a first fixing seat and a second fixing seat, and the top of the first fixing seat is respectively provided with a round hole, an arc groove, and a card slot, and the injection barrel is installed In the circular arc groove, the output shaft of the stepping motor is connected to one end of the coupling, and the other end of the coupling is connected to the screw. In the hole, the upper and lower sides of the stepping motor are respectively equipped with a miniature gas-liquid mixing pump and a control device. The liquid inlet and liquid outlet of the liquid storage bottle are respectively connected to the discharge mixed liquid end of the miniature gas-liquid mixing pump and the second joint of the medical three-way joint through medical hoses, and the first joint of the medical three-way joint is connected to the The injection end of the syringe is connected, the outer cover is installed on the outer side of the top of the base, the rear side of the outer cover is respectively 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 limit handle on the top of the syringe is embedded in the slot on the top of the first fixing seat.

Preferably, the bottom of the round hole is provided with a post, the post is connected to the bottom of the spring, and the spring can rotate 90 degrees around the post, 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 Arc-shaped, the diameter of the arc is equal to the diameter of the injection barrel, and the top of the movable buckle can be in contact with the top of the injection barrel.

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

Preferably, the medical three-way joint can be adjusted to form two kinds of paths through the rotary switch, one is: the first joint is opened with the second joint, and the third joint is closed; the other is: the first joint is connected with the third joint. 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 respectively connected to the micro gas-liquid mixing pump and the power input end of the stepping motor through wires, and the control panel is electrically connected to the control device .

Preferably, the inside of the control device is also provided with a single-chip controller and a stepper motor driver, and the single-chip controller controls the forward and reverse rotation of the stepper motor through the stepper motor driver

(3) Beneficial effects

Compared with the prior art, the present invention provides an integrated replaceable syringe radiography device, which has the following beneficial effects:

The one-piece replaceable syringe imaging device, through the structural connection between the micro-air-liquid mixing pump, stepping motor, and screw, then automatically mixes the contrast agent and air through the micro-air-liquid mixing pump to form stable contrast agent microbubbles , thereby avoiding the problems of slow efficiency, high cost of human resources, different imaging effects, and poor repeatability of artificially synthesized contrast agents. When contrast examination is performed for different patients, only the syringe can be replaced, thereby improving the efficiency and accuracy of the examination.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and 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:

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

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

Fig. 3 is a front view of the present invention;

Fig. 4 is a top view of the present invention;

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

Fig. 6 is the structure schematic diagram of miniature gas-liquid mixing pump of the present invention;

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

Fig. 8 is a cross-sectional view of the structure between the movable card position, the spring and the first fixed seat of the present invention;

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

Fig. 10 is a schematic diagram of the structure between the syringe, the piston handle and the block of the present invention;

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

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

In the figure: 1-base, 2-first fixed seat, 3-second fixed seat, 4-injection barrel, 41-limiting 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-hole, 12-miniature gas-liquid mixing pump, 121-intake end, 122-inlet liquid end, 123-row mixed liquid end, 13-gas bottle, 14-liquid bottle, 15-liquid storage bottle, 16-medical hose, 17-medical tee joint, 171-first joint, 172-second connector, 173-third connector, 18-rotary switch, 19-infusion tube, 20-outer cover, 21-round hole, 211-card post, 212-spring, 22-through hole, 221-power interface, 222-air vent, 23-control panel, 24-arc groove, 25-card slot.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

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

The limit handle 41 on the top of the injection cylinder 4 is embedded in the slot 25 on the top of the first fixed seat 2, and limits the position of the injection cylinder 4 to prevent the movement of the piston handle 42 from moving the injection cylinder 4, thereby affecting the movement of the piston handle 42 to move the injection cylinder. 4 The contrast microbubbles inside are ejected.

The bottom of the round hole 21 is provided with a post 211, the post 211 is connected to the bottom of the spring 212, and the spring 212 can rotate 90 degrees around the 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 diameter of the arc is equal to the diameter of the syringe 4, and the top of the movable buckle 5 can be in contact with the top of the syringe 4, so that when replacing another syringe 4, the movable buckle 5 is lifted first and then rotated Ninety degrees, now the movable buckle 5 is parallel to the injection barrel 4 and has no contact. After the replacement, the movable buckle 5 is lifted and rotated 90 degrees. The recovery force of the spring 212 is small, and the top of the movable buckle 5 is in contact with the The top of the syringe 4 is squeezed and locked.

The bottom and top of the 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 by bolts, and the piston handle 42 is embedded in the clamping hole 112, so that when the screw rod 9 is reversing, Drive the screw nut 10 to move left and right, and the screw nut 10 synchronously drives the block 11 to move left and right, and the block 11 finally drives the piston handle 42 to move left and right, and then controls the syringe 4 to extract or inject contrast microbubbles.

The medical three-way joint 17 can be adjusted by the rotary switch 18 to form two kinds of passages, 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 4 and the liquid storage bottle 15 Form a circuit, when the contrast microbubbles in the injection cylinder 4 are injected, the stepper motor 7 drives the screw 9 to reverse, and then drives the piston handle 42 to move backward, and the piston handle 42 sucks the contrast agent in the liquid storage bottle 15 Microbubble, when it is necessary to perform the same contrast examination item on another patient, only by replacing the infusion tube 19 and the injection needle directly in contact with the patient, the usage of the syringe 4 can be reduced; the other is: the first connector 171 and the third joint 173 are opened, and the second joint 172 is closed, that is, the syringe 4 forms a passage with the infusion tube 19, and the other end of the infusion tube 19 is connected to the patient's intravenous injection end through the injection needle, so that the control panel 23 can be used to input instructions to the control device 6 signal, the control device 6 then controls the motor 7 to drive the screw rod 9 to rotate forward, and then drives the piston handle 42 to move forward, and then drives the piston handle 42 to move forward, and the piston handle 42 injects the contrast medium microbubbles in the injection cylinder 4 into the inside the patient.

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 respectively connected to the micro gas-liquid mixing pump 12 and the power input end of the stepping motor 7 through wires, and the control panel 23 is electrically connected to the control device 6 , the user can input the forward and reverse command of the stepper motor 7 or the start command of the micro gas-liquid mixing pump 12 on the control panel 23, and the control panel 23 transmits the command signal to the control device 6, and the control device 6 then controls the stepper motor 7 to move forward and reverse. Reversing or starting 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 inside of the control device 6 is also provided with a single-chip controller and a stepper motor driver, and the single-chip controller controls the forward and reverse rotation of the stepper motor 7 through the stepper motor driver.

When in use, purified air and contrast agent are installed in the gas bottle 13 and liquid bottle 14 respectively, and the volume content ratio of the air and contrast agent is 1:9, and the control panel 23 controls the stepping motor 7 to start, The closing button also has the start button for controlling the micro-gas-liquid mixing pump 12. First start the micro-gas-liquid mixing pump 12. The micro-gas-liquid mixing pump 12 fully mixes the air and the contrast agent to form stable contrast agent microbubbles, and then the micro-air-liquid mixing pump 12 fully mixes the contrast agent. The bubble is transferred to the liquid storage bottle 15 through the medical hose 16, and the circuit is formed between the injection cylinder 4 and the liquid storage bottle 15 through the adjustment of the rotary switch 18, and then the reverse start button of the stepping motor 7 is pressed, and the stepping motor 7 drives The screw rod 9 reverses, and then drives the piston handle 42 to move backward. The piston handle 42 sucks the contrast agent microbubbles in the liquid storage bottle 15 into the injection cylinder 4, presses the stepping motor 7 off button, and then rotates The switch 18 is adjusted to form a path between the syringe 4 and the infusion tube 19, and the other end of the infusion tube 19 is connected to the patient's intravenous injection port through the injection needle. Press the stepping motor 7 forward rotation start button again, and the stepping motor 7 rotates at a low speed to drive the screw rod 9. Rotate forward, and then drive the piston handle 42 to slowly push forward, and the piston handle 42 will slowly inject the microbubbles of the contrast agent in the injection cylinder 4 into the patient's body, which is convenient for the inspection of the follow-up imaging items.

In particular, the connection between the medical hose 16 and the miniature gas-liquid mixing pump 12, the liquid storage bottle 15, and the medical three-way joint 17 is all threaded, and the miniature gas-liquid mixing pump 12 is fixed on the top of the base 1 by bolts, wherein The stepping motor 7 is fixed on the top of the base 1 by a fixing buckle and a bolt.

To sum up, this one-piece replaceable syringe imaging device, through the structural connection between the micro gas-liquid mixing pump, stepping motor, and screw, then automatically mixes the contrast agent and air through the micro gas-liquid mixing pump to form a stable Contrast agent microbubbles, thereby avoiding the problems of slow efficiency, high human resource costs, different contrast effects, and poor repeatability of artificially synthesized contrast agents. At the same time, the contrast agent microbubbles are injected stably Into the patient's body, thereby improving the efficiency and accuracy of inspection.

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 there is a relationship between these entities or operations. any such actual relationship or order exists between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

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

Claims (7)

1. the replaceable injection tube contrast apparatus of integral type, including base（1）, injection tube（4）, movable buckle（5）, control device （6）, stepper motor（7）, micro gas-liquid mixing pump（12）, liquid-accumulating bottle（15）, Medical tee joint joint（17）, outer cover（20）, control Panel（23）, it is characterised in that：The base（1）Top is respectively equipped with the first fixed seat（2）With the second fixed seat（3）, it is described First fixed seat（2）Top is respectively equipped with circular hole（21）, arc groove（24）, neck（25）, the injection tube（4）It is installed on circular arc Groove（24）It is interior, the stepper motor（7）Output shaft and shaft coupling（8）One end connects, shaft coupling（8）The other end and screw mandrel（9）Even Connect, screw mandrel（9）Outside matching thread is connected to feed screw nut（10）, feed screw nut（10）It is installed on fixture block（11）Square hole （111）It is interior, the stepper motor（7）Upper and lower both sides are respectively equipped with micro gas-liquid mixing pump（12）And control device（6）, it is described micro- Type gas-liquid mixing pump（12）Inlet end（121）, enter liquid end（122）It is connected to dress gas cylinder（13）, liquid bottle（14）, it is described Liquid-accumulating bottle（15）Inlet, liquid outlet pass through flexible pipe for medical purpose（16）Respectively with micro gas-liquid mixing pump（12）Row's mixed liquor End（123）, Medical tee joint joint（17）The second joint（172）Connection, the Medical tee joint joint（17）The first joint （171）With injection tube（4）Dispensing end connects, the outer cover（20）It is installed on base（1）Top outer, outer cover（20）Rear side is distinguished Provided with power interface（221）, air vent（222）, outer cover（20）Right side is provided with through hole（22）.

2. the replaceable injection tube contrast apparatus of integral type according to claim 1, it is characterised in that：The injection tube（4） The spacing handle at top（41）It is embedded in the first fixed seat（2）The neck at top（25）It is interior.

3. the replaceable injection tube contrast apparatus of integral type according to claim 1, it is characterised in that：The circular hole（21）Bottom Portion is provided with card column（211）, card column（211）With spring（212）Bottom connects, and spring（212）Card column can be surrounded（211）Rotation nine Ten degree, spring（212）Top and movable buckle（5）Bottom connects, the movable buckle（5）Top opposite side is arc-shaped, circle Arc dia and injection tube（4）Diameter is equal, and movable buckle（5）Top can be with injection tube（4）Top contact.

4. the replaceable injection tube contrast apparatus of integral type according to claim 1, it is characterised in that：The fixture block（11）Bottom Portion and top are respectively equipped with square hole（111）And hole clipping（112）, feed screw nut（10）It is secured by bolts in square hole（111）It is interior, and Piston handle（42）It is embedded in hole clipping（112）It is interior.

5. the replaceable injection tube contrast apparatus of integral type according to claim 1, it is characterised in that：The Medical tee joint connects Head（17）Rotary switch can be passed through（18）Regulation forms two kinds of paths therein, Yi Zhongwei：First joint（171）With the second joint （172）It is open-minded, the 3rd joint（173）Close；Another kind is：First joint（171）With the 3rd joint（173）Open-minded, second connects Head（172）Close.

6. the replaceable injection tube contrast apparatus of integral type according to claim 1, it is characterised in that：The control device （6）Power input passes through wire and power interface（221）Connection, control device（6）Power output end by wire respectively with Micro gas-liquid mixing pump（12）, stepper motor（7）Power input connects, the control panel（23）With control device（6）Electricity Property connection.

7. the replaceable injection tube contrast apparatus of integral type according to claim 1, it is characterised in that：The control device （6）Inside is additionally provided with singlechip controller and stepper motor driver, singlechip controller by stepper motor driver and then Control stepper motor（7）Rotating.