CN219594752U - Ultrasound guided drug injection device - Google Patents
Ultrasound guided drug injection device Download PDFInfo
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- CN219594752U CN219594752U CN202221746383.3U CN202221746383U CN219594752U CN 219594752 U CN219594752 U CN 219594752U CN 202221746383 U CN202221746383 U CN 202221746383U CN 219594752 U CN219594752 U CN 219594752U
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- air bag
- injection device
- drug injection
- ultrasound guided
- plunger rod
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Abstract
The utility model belongs to the technical field of medical equipment, and discloses an ultrasonic guided drug injection device. The infusion device comprises an infusion structure and a pushing structure connected with the infusion structure, wherein the infusion structure comprises a syringe for containing liquid medicine, a plunger rod arranged in the syringe and a button; the button is in signal connection with the pushing structure and is used for triggering the pushing structure; the pushing structure comprises a gas transmission structure and an elastic first air bag which are connected with each other through a conduit; the gas transmission structure is used for generating gas when the button is pressed, and the gas enters the first air bag through the guide pipe; the plunger rod is connected with the first air bag; the first air bag can expand and push the plunger rod after the air enters, and the medicine liquid in the syringe is pushed through the movement of the plunger rod. The utility model can assist doctors to complete the injection of liquid medicine by a single person, saves human resources, and has simple structure and convenient operation.
Description
Technical Field
The utility model belongs to the technical field of medical equipment.
Background
Ultrasound technology is a means of perioperative diagnosis and treatment, while ultrasound guided nerve block technology is one of the therapeutic means of multi-mode analgesia. Aseptic sterilization is required because of the invasive procedure. At present, a nerve blocking needle and an injection assembly are connected through an extension tube in clinic, when a doctor performs nerve blocking test injection on a patient, one person takes an ultrasonic probe to an area of the patient body, which needs anesthesia, by one hand, so that the corresponding area, which needs anesthesia, is developed on a display screen, the other hand takes a nerve blocking puncture needle to puncture the corresponding area, after the puncture is in place, the other person holds the injection assembly to perform injection of anesthetic liquid, and in the process, the two persons need to concentrate attention and cooperate. Under the condition that two persons are not acquiescent, nerve block trial injection is long in time consumption, even misoperation can be sent, side injury of nerve blood vessels of patients and local anesthetic poisoning caused by misinjection of local anesthetic into the blood vessels can be caused, and harm is brought to the patients. In addition, the operation cannot be completed by a single person under the conditions of insufficient hand and insufficient hospital matching or hard field operations, and the operation is inconvenient while the manpower resources are wasted.
Disclosure of Invention
The utility model aims to provide an ultrasonic guided medicine injection device which can trigger a pushing structure to push a plunger rod in a syringe by pressing a button on an infusion structure so as to push medicine liquid in the syringe, thereby assisting a doctor to finish the operation of medicine administration under ultrasonic guidance by a single person.
The utility model provides an ultrasonic guided drug injection device, which comprises an infusion structure and a pushing structure connected with the infusion structure,
the infusion structure comprises a syringe for containing liquid medicine, a plunger rod and a button which are arranged in the syringe; the button is in signal connection with the pushing structure and is used for triggering the pushing structure;
the pushing structure comprises a gas transmission structure and an elastic first air bag which are connected with each other through a conduit;
the gas transmission structure is used for generating gas when the button is pressed, and the gas enters the first air bag through the guide pipe;
the plunger rod is connected with the first air bag; the first air bag can expand and push the plunger rod after the air enters, and the medicine liquid in the syringe is pushed through the movement of the plunger rod.
Further, a first air bag base is arranged below the first air bag, an adhesive layer is arranged on the first air bag base, and the first air bag is supported and fixed through the adhesion of the adhesive layer.
Further, the gas transmission structure comprises a pressing plate, an elastic second air bag and a second air bag base;
the second air bag is arranged on the second air bag base;
the second air bag base is provided with a sliding rail;
the pressing plate is arranged above the second air bag and is connected with the sliding rail through a sliding block, and the sliding block can move up and down on the sliding rail to drive the pressing plate to squeeze the second air bag; the second air bag is used for exhausting air under the extrusion of the pressing plate.
Further, a fold structure is provided on the second airbag.
Further, the infusion structure further comprises a blocking needle and an extension tube;
the liquid inlet end of the retarding needle is connected with the liquid outlet end of the extension tube;
the liquid inlet end of the extension tube is connected with the liquid outlet end of the needle cylinder.
Further, a flow sensor is arranged on the extension tube; the flow sensor is used for measuring the flow of the liquid medicine in the extension tube.
Further, the needle tip of the blocking needle is a blunt needle tip.
Further, the outer wall of the needle cylinder is provided with capacity scales along the length direction of the needle cylinder.
Further, the pushing structure further comprises a three-way valve, and the three-way valve is of a T-shaped structure; the three-way valve is arranged between the first air bag and the gas transmission structure and is used for unidirectionally feeding gas or unidirectionally discharging gas.
Compared with the prior art, the utility model adopts the technical proposal, and has the following advantages and positive effects by way of example and not limitation:
the push structure can be triggered to push the plunger rod in the needle cylinder by pressing the button on the infusion structure, so that the medicine liquid in the needle cylinder is pushed, the operation of medicine feeding under the guidance of ultrasonic waves can be assisted by a doctor by a single person, and the device is simple in structure and convenient to operate.
Drawings
Fig. 1 is a schematic structural diagram of a pushing structure according to an embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of an infusion structure according to an embodiment of the present utility model.
The reference numerals in the figures illustrate:
100-ultrasound guided drug injection device;
200-pushing structure, 210-pressing plate, 220-sliding block, 230-sliding rail, 240-second air bag, 241-air inlet hole, 250-air outlet hole, 260-second air bag base, 270-conduit, 280-first air bag, 281-first air bag base, 282-adhesive layer, 290-three-way valve;
300-infusion structure, 310-syringe, 320-flow sensor, 330-extension tube, 340-blocker needle, 350-plunger rod, 360-button.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
As shown in fig. 1, the present utility model provides an ultrasound guided drug injection device 100 comprising a pushing structure 200.
The pushing structure includes a gas delivery structure including a platen 210, an elastic second bladder 240, and a second bladder base 260.
The second air bag is arranged on the second air bag base; the installation and connection mode can adopt adhesive connection or two magnets with opposite magnetism are respectively arranged on the contact surfaces of the second air bag and the second air bag base and are connected through magnetic attraction.
The base is provided with a sliding rail 230; optionally, the second air bag is disposed in the middle of the second air bag base, and two total sliding rails are disposed on two sides of the second air bag 240 respectively.
The pressing plate 210 is disposed above the second air bag and connected to the sliding rail through a sliding block 220, and the sliding block is matched with the sliding rail and can move up and down on the sliding rail to drive the pressing plate to squeeze the second air bag.
The electric energy storage device further comprises a motor, wherein the motor can be arranged in the sliding rail or the second air bag base to provide electric energy.
The shape of the second air bag is not limited, and in this embodiment, the second air bag is a hollow elastic cylinder, and as shown in fig. 1, the inside is filled with air. The second air bag is provided with an air inlet 241, and air passing through the outside of the air inlet can enter the second air bag.
Further, preferably, the second airbag is provided with a pleated structure.
The second balloon 240 is provided with an air outlet 250, and a guide tube 270 is inserted into the air outlet 250 to be connected with the second balloon. Under the compression of the platen 210, the gas in the second bladder is exhausted through the gas outlet holes and into the conduit.
As shown in FIG. 2, the flexible first bladder 280 is interconnected by a conduit 270 and a gas delivery structure. Through the conduit, the gas exiting the second bladder enters the first bladder 280.
The plunger rod is connected with the first air bag. By way of example, an adhesive connection may be used. Or, the magnetic connection is adopted.
Preferably, a first air bag base 281 is disposed below the first air bag, an adhesive layer 282 is disposed on the first air bag base, and the first air bag is supported and fixed by the adhesion of the adhesive layer.
The infusion structure includes a syringe 310 to contain a medical fluid and a plunger rod 350 mounted within the syringe.
Because the elastic material of the first air bag can expand after being inflated and drive the plunger rod 350 connected with the first air bag to move forwards, the effect of pushing the plunger rod is achieved. The plunger rod in the syringe 310 moves to push the medicine in the syringe forward.
The infusion structure further includes a button 360 in signal communication with the pushing structure for triggering the pushing structure; optionally, a button 360 is provided on the barrel 310.
Typical procedures in use are as follows: before use, the user secures the first balloon by the first balloon base provided with an adhesive layer.
The user presses the button, and the pushing structure starts, and the slider moves downwards on the sliding rail to drive the pressing plate to move downwards, so as to squeeze the second air bag below the pressing plate. The second air bag discharges air, the air enters the first air bag through the guide pipe, the first air bag expands along with the entering of the air, the pushing force is generated on the plunger rod, and the plunger rod moves forwards to push the liquid medicine in the syringe.
The pressure exerted by the pressing plate on the second air bag and the frequency of pressing the second air bag by the pressing plate can influence the amount of air discharged by the second air bag, and then influence the expansion degree of the first air bag, so that the pushing force of the plunger rod is influenced.
By way of example and not limitation, the standard mode is set such that each time a button is depressed, the pressure plate moves downward to squeeze the gas generated by the second bladder to expand the first bladder, which ultimately may advance the plunger rod 1-2 cm. Thus, the flow rate of the liquid medicine can be controlled in clinic. Alternatively, a plurality of modes may be set for the movement of the pressing plate, and the flow rate of the chemical liquid may be adjusted by the same button being triggered by different times of pressing or different buttons.
Optionally, the pushing structure further includes a three-way valve 290, which is a T-shaped structure;
as shown in fig. 2, the three-way valve is disposed between the first air bag and the air delivery structure, and includes an air inlet end and an air outlet end which are disposed on the same horizontal plane, and an air outlet end disposed below the air inlet end and the air outlet end.
The infusion structure further comprises a blocking needle 340 and an extension tube 330; the liquid inlet end of the retarding needle is connected with the liquid outlet end of the extension tube; the liquid inlet end of the extension tube is connected with the liquid outlet end of the needle cylinder.
Preferably, the needle tip of the blocking needle is a blunt needle tip, so that the damage to a patient caused by needle tip puncture is reduced.
Preferably, the extension tube 330 is provided with a flow sensor 320 for measuring the flow rate of the liquid medicine in the extension tube 330 per unit time. The flow sensor is a non-contact flow sensor which can be installed on the extension tube to measure, which is the prior art and is not unfolded.
Optionally, the flow sensor 320 includes an alarm component, and when detecting that the flow rate of the liquid medicine in the extension tube 330 in unit time is greater than a preset threshold value, the alarm component is used for alarming. The alarm component is a buzzer and/or an LED lamp. The alarm may be in the form of a light status change and/or a buzzer audible alarm.
The preset threshold may be a fixed threshold preset at the factory for most treatment situations or an unfixed value that can be adjusted. The adjustment may be made by providing a corresponding button on the flow sensor 320.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. An ultrasound guided drug injection device, characterized by: the ultrasound guided drug injection device comprises an infusion structure and a pushing structure connected with the infusion structure,
the infusion structure comprises a syringe for containing liquid medicine, a plunger rod and a button which are arranged in the syringe; the button is in signal connection with the pushing structure and is used for triggering the pushing structure; the pushing structure comprises a gas transmission structure and an elastic first air bag which are connected with each other through a conduit; the gas transmission structure is used for generating gas when the button is pressed, and the gas enters the first air bag through the guide pipe;
the plunger rod is connected with the first air bag; the first air bag can expand and push the plunger rod after the air enters, and the medicine liquid in the syringe is pushed through the movement of the plunger rod.
2. The ultrasound guided drug injection device of claim 1, wherein: the air bag is characterized in that a first air bag base is arranged below the first air bag, an adhesive layer is arranged on the first air bag base, and the first air bag is supported and fixed through the adhesion of the adhesive layer.
3. The ultrasound guided drug injection device of claim 1, wherein: the gas transmission structure comprises a pressing plate, an elastic second airbag and a second airbag base;
the second air bag is arranged on the second air bag base;
the second air bag base is provided with a sliding rail;
the pressing plate is arranged above the second air bag and is connected with the sliding rail through a sliding block, and the sliding block can move up and down on the sliding rail to drive the pressing plate to squeeze the second air bag;
the second air bag is used for exhausting air under the extrusion of the pressing plate.
4. An ultrasound guided drug injection device according to claim 3, wherein:
the second air bag is provided with a fold structure.
5. The ultrasound guided drug injection device of claim 1, wherein: the infusion structure further comprises a retarding needle and an extension tube;
the liquid inlet end of the retarding needle is connected with the liquid outlet end of the extension tube;
the liquid inlet end of the extension tube is connected with the liquid outlet end of the needle cylinder.
6. The ultrasound guided drug injection device of claim 5, wherein: a flow sensor is arranged on the extension tube;
the flow sensor is used for measuring the flow of the liquid medicine in the extension tube;
when the flow sensor detects that the flow of the liquid medicine in the extension tube is larger than a preset threshold value, an alarm is triggered.
7. The ultrasound guided drug injection device of claim 5, wherein: the needle tip of the blocking needle is a blunt needle tip.
8. The ultrasound guided drug injection device of claim 1, wherein: the outer wall of the needle cylinder is provided with capacity scales along the length direction of the needle cylinder.
9. The ultrasound guided drug injection device of claim 1, wherein: the pushing structure further comprises a three-way valve, and the three-way valve is of a T-shaped structure;
the three-way valve is arranged between the first air bag and the gas transmission structure and is used for unidirectionally feeding gas or unidirectionally discharging gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221746383.3U CN219594752U (en) | 2022-07-05 | 2022-07-05 | Ultrasound guided drug injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221746383.3U CN219594752U (en) | 2022-07-05 | 2022-07-05 | Ultrasound guided drug injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219594752U true CN219594752U (en) | 2023-08-29 |
Family
ID=87742989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221746383.3U Active CN219594752U (en) | 2022-07-05 | 2022-07-05 | Ultrasound guided drug injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219594752U (en) |
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2022
- 2022-07-05 CN CN202221746383.3U patent/CN219594752U/en active Active
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