Force feedback foot-controlled intravenous injection pump system

Abstract

The invention discloses a force feedback foot control type intravenous injection pump system which comprises an injection pump, an electric control unit is installed on the injection pump, and a displayer which is used for displaying injection parameters and is in electric signal connection with the electric control unit is further installed on the injection pump. The injector is communicated with the injection pump; the pedal controller is integrally arranged on the ground and is used for pedal control; wherein the pedal controller comprises a pedal and a fixed seat, and when the pedal controller is used, an operator steps on the pedal to carry out injection operation; one end of the injector is provided with a pressure sensor used for monitoring the injection pressure, the pressure sensor is in electric signal connection with the electric control unit so as to feed back the injection pressure, and the injection pressure is displayed on the display so as to regulate and control the treading force of the pedal controller. Compared with the prior art, labor cost can be remarkably saved, nerve block operation can be conducted by a single person, unnecessary nerve injury is reduced by accurately controlling the injection speed through feedback of damping of the infusion pump in the injection process, and absolute sterility is easy to achieve through single-person operation.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to an intravenous injection pump. Background Art

[0002] Nerve block technology is one of the most commonly used treatment methods by anesthesiologists. It is called nerve block, which is to inject local anesthetics around nerve trunks, plexuses, and ganglia to block the conduction of impulse signals and produce anesthesia in the area controlled. Nerve block only requires one injection to obtain a larger anesthetized area. Commonly used nerve blocks include intercostal, infraorbital, sciatic, digital (toe) nerve trunk blocks, cervical plexus, brachial plexus nerve blocks, and stellate ganglion and lumbar sympathetic ganglion blocks for diagnosis and treatment. This treatment method is minimally invasive and requires less medication, so that patients can get the greatest therapeutic effect at the lowest cost.

[0003] Ultrasonic nerve block has been widely used. The operator needs to hold the nerve block needle in one hand and the ultrasound probe in the other hand to operate. After fully determining the block position, the drug is injected. The injection of drugs usually requires an assistant, and the assistant must be an anesthesiologist with certain professional knowledge. Through certain training, the timing of the drug injection, the speed of the injection, and the size of the injection damping are mastered to reduce the chance of nerve damage. This method is prone to information errors between operators, causing unnecessary nerve damage to patients. This method cannot achieve an absolute sterile state when operated by two people. It is easy to cause the risk of infection of the patient's nerve block wound.

[0004] Traditional two-person nerve block is based on manual operation. The main operator holds the ultrasound probe in one hand and the nerve block needle in the other hand, and the assistant helps to push the drug. Traditional nerve block cannot be absolutely sterile and is easy to infect the patient's operation wound. It is easy to cause information errors between the operator and the assistant, damage the patient's nerves and cause unnecessary damage. Summary of the invention

[0005] The purpose of the present invention is to provide a force feedback foot-controlled intravenous push pump system, which can significantly save labor costs, allow a single person to perform nerve block operations, and reduce unnecessary nerve damage by accurately controlling the push speed through feedback of the infusion pump damping during the injection process. Absolute sterility can be easily achieved by a single person.

[0006] The object of the present invention is achieved by: a force feedback foot-controlled intravenous push pump system, comprising:

[0007] A syringe pump, wherein the syringe pump is equipped with an electronic control unit and a display for displaying injection parameters and connected to the electronic control unit by electrical signals;

[0008] A syringe connected to a syringe pump;

[0009] A pedal controller that is placed entirely on the ground and is used for foot control;

[0010] The pedal controller includes a pedal and a fixed seat, one end of the pedal is elastically connected to the fixed seat for rotation up and down through a rotating shaft, and the rotation connection point forms a rotation fulcrum of the pedal. When in use, the operator steps on the pedal to perform a push injection operation;

[0011] A pressure sensor for monitoring the push pressure is installed at one end of the syringe. The pressure sensor is connected to the electronic control unit by electrical signals to feedback the push pressure and display the push pressure on the display to regulate the pedaling force of the foot pedal controller.

[0012] Furthermore, the pedal controller also includes a speed controller for monitoring the movement speed of the pedal, and the speed controller is used to feed back a signal to the electronic control unit.

[0013] Furthermore, the pedal controller also includes a damper for forming push injection damping, the fixed part of the damper is installed on the fixed seat, and the movable part of the damper is movably connected to / contacted with the lower plate surface of the pedal.

[0014] Furthermore, the damper is configured as an electrically controlled damper with a self-locking property, and is self-locking to lock the pedal when the push pressure is overloaded, and the damper is in an active state when the push pressure is normal.

[0015] Furthermore, the electronic control unit is connected to the speed controller and the damper through an electrical signal line to feed back a push injection speed signal and a push injection damping signal.

[0016] Furthermore, the electronic control unit is provided with a wireless communication unit, the fixing seat of the pedal controller is installed with a control component, the speed controller and the damper are both electrically connected to the control component, and the control component has a wireless communication module that communicates with the wireless communication unit to transmit the push injection speed signal and the push injection damping signal.

[0017] Furthermore, the injection pump is equipped with an audible and visual alarm, which has an alarm light and an alarm horn. The audible and visual alarm is electrically connected to the electronic control unit and generates an audible and visual alarm signal when the injection pressure is overloaded.

[0018] The beneficial effects of the present invention are:

[0019] 1. It can significantly save labor costs. A single person can perform nerve block operation, overcoming the defect of uncontrollable injection process caused by asynchronous operation of two people. The injection speed can be precisely controlled by the feedback of the damping of the infusion pump during the injection process to reduce unnecessary nerve damage. Absolute sterility can be easily achieved by a single person.

[0020] 2. A good feedback mechanism for the push injection process has been formed, which can feedback the push injection speed and pressure information during the push injection process, form a certain damping effect on the push injection process, and sense the push injection pressure in real time to accurately control the push injection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a first embodiment of the present invention.

[0022] Figure 2 It is a schematic diagram of a second embodiment of the present invention.

[0023] Explanation of the reference numerals: 1-injection pump; 2-syringe; 3-electronic control unit; 3a-wireless communication unit; 4-pedal controller; 401-pedal; 402-fixed seat; 403-speed controller; 404-damper; 405-rotation fulcrum; 406-control component; 5-pressure sensor; 6-sound and light alarm. DETAILED DESCRIPTION

[0024] The following will be combined with the attached embodiment of the present invention Figure 1-2 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1 , 2 As shown, a force feedback foot-controlled intravenous push pump system is proposed, comprising:

[0026] The injection pump 1 is equipped with an electronic control unit 3 and a display for displaying injection parameters and connected to the electronic control unit 3 by electrical signals;

[0027] A syringe 2 connected to the syringe pump 1;

[0028] A pedal controller 4 is placed on the ground as a whole and is used for foot control.

[0029] Among them, the pedal controller 4 includes a pedal 401 and a fixed seat 402. One end of the pedal 401 is elastically connected to the fixed seat 402 for rotation up and down through a rotating shaft. The rotation connection point forms a rotation fulcrum 405 of the pedal 401. When in use, the operator steps on the pedal 401 with the forefoot to perform a push injection operation, which is similar to the action of stepping on the accelerator when driving a car.

[0030] A pressure sensor 5 for monitoring the push pressure is installed at one end of the above-mentioned syringe 2 (the end of the push rod) to measure the force in the injection direction of the syringe 2. The pressure sensor 5 is connected to the electronic control unit 3 by electrical signals to feedback the push pressure and display the push pressure on the display to regulate the pedaling force of the foot pedal controller 4.

[0031] During use, a single person can perform a nerve block operation. The operator holds the syringe 2 and steps on the pedal controller 4 at the same time. After using ultrasound to determine the target position, the foot controls the injection pump 1 to perform the infusion and drug pushing process. The operator can control the drug pushing speed and injection amount by stepping on the foot.

[0032] The pedal controller 4 also includes a speed controller 403 for monitoring the movement speed of the pedal 401. The speed controller 403 is used to feed back signals to the electronic control unit 3 of the injection pump 1, so as to adjust the speed of the push injection. There are many types of speed controllers. The speed controller 403 can be a telescopic rod-shaped speed controller (the upper and lower ends are respectively rotated to connect the pedal 401 and the fixed seat 402), or a rotary encoder installed on the fixed seat 402. The rotating shaft of the pedal 401 is fixedly connected to the measuring shaft of the rotary encoder, and the push injection speed is detected by detecting the torque of the rotating shaft of the pedal 401. The ultimate goal is to prevent the push injection speed from being too fast.

[0033] The pedal controller 4 also includes a damper 404 for forming push injection damping to prevent the push injection speed from being too fast, thereby improving the controllability and stability of the push injection process. The fixed portion of the damper 404 is mounted on the fixed seat 402, and the movable portion (telescopic rod) of the damper 404 is relatively slidably connected / contacted with the lower surface of the pedal 401, so that the rotation of the pedal 401 has a damping effect, thereby generating push injection damping, and the push injection can be stopped immediately when it is necessary, so that the push injection speed error is controlled within a very small range.

[0034] The damper 404 is configured as an electromagnetic damper with self-locking performance (it uses electromagnetic principles to generate electromagnetic damping, has self-locking elements, is a component already available on the market, and its shape can be customized), and self-locks to lock the pedal 401 when the push pressure is overloaded (for example, the push pressure reaches 150psi) to prevent the push pressure from being too high; when the push pressure is normal, the damper 404 is in an active state (retractable), so that the pedal 401 can perform normal rotation activities.

[0035] The above-mentioned injection pump 1 is equipped with an audible and visual alarm 6, which has an alarm light and an alarm horn. The audible and visual alarm 6 is electrically connected to the electronic control unit 3. When the push pressure is overloaded and / or the push speed is too fast, the audible and visual alarm 6 will generate an audible and visual alarm signal, thereby promptly reminding the push operator to stop stepping on the pedal 401 in time. This can deal with situations where errors or failures occur in the damper 404 and the speed controller 403, as well as situations where the operator becomes fatigued and causes improper operation. The audible and visual alarm signal can remind the operator more directly so that the operator can stop stepping on the pedal 401 in time when an overload occurs during the push process.

[0036] like Figure 1 The first embodiment is shown, in which the pedal controller 4 and the electronic control unit 3 use a wired connection to transmit electrical signals (the wired connection method is not limited here), and the electronic control unit 3 is connected to the speed controller 403 and the damper 404 through an electrical signal line to feed back the push speed signal and the push damping signal.

[0037] like Figure 2 The second embodiment is shown, the pedal controller 4 and the electronic control unit 3 use wireless communication to transmit signals, such as Bluetooth communication or other wireless communication modes. The pedal controller 4 is relatively independently arranged to make the operation more convenient. The electronic control unit 3 is provided with a wireless communication unit 3a. The fixing seat 402 of the pedal controller 4 is installed with a control component 406. The speed controller 403 and the damper 404 are both electrically connected to the control component 406. The control component 406 has a wireless communication module that communicates with the wireless communication unit 3a to transmit the push speed signal and the push damping signal.

[0038] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; in the present invention, it should also be noted that the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integrally formed connection, a mechanical connection, or an indirect connection through an intermediate connecting component, and the specific meaning of the terms in this utility model can be understood according to the specific circumstances.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A force feedback foot-controlled intravenous push pump system, include: An injection pump (1), wherein the injection pump (1) is equipped with an electronic control unit (3) and a display for displaying injection parameters and connected to the electronic control unit (3) by electrical signals; A syringe (2) connected to the syringe pump (1); The invention is characterized in that it also comprises a pedal controller (4) which is placed on the ground as a whole and is used for foot control; The pedal controller (4) comprises a pedal (401) and a fixing seat (402); one end of the pedal (401) is elastically connected to the fixing seat (402) for vertical rotation via a rotating shaft, and the rotation connection point forms a rotation fulcrum (405) of the pedal (401); when in use, the operator steps on the pedal (401) to perform a push injection operation; A pressure sensor (5) for monitoring the push injection pressure is installed at one end of the syringe (2). The pressure sensor (5) is connected to the electronic control unit (3) via an electrical signal to feed back the push injection pressure and display the push injection pressure on a display to regulate the pedaling force of the foot pedal controller (4).

2. A force feedback foot-controlled intravenous push pump system according to claim 1, Features: The pedal controller (4) further comprises a speed controller (403) for monitoring the movement speed of the pedal (401), and the speed controller (403) is used to feed back a signal to the electronic control unit (3).

3. A force feedback foot-controlled intravenous push pump system according to claim 2, Features: The pedal controller (4) further comprises a damper (404) for forming push injection damping, wherein a fixed portion of the damper (404) is mounted on a fixed seat (402), and a movable portion of the damper (404) is movably connected to / contacts a lower surface of the pedal (401).

4. A force feedback foot-controlled intravenous push pump system according to claim 3, Features: The damper (404) is configured as an electrically controlled damper with a self-locking property, and is self-locking to lock the pedal (401) when the push pressure is overloaded, and the damper (404) is in an active state when the push pressure is normal.

5. A force feedback foot-controlled intravenous push pump system according to claim 4, Features: The electric control unit (3) is connected to the speed controller (403) and the damper (404) via an electric signal line to feed back a push injection speed signal and a push injection damping signal.

6. A force feedback foot-controlled intravenous push pump system according to claim 4, Features: The electronic control unit (3) is provided with a wireless communication unit (3a); the fixing seat (402) of the pedal controller (4) is installed with a control component (406); the speed controller (403) and the damper (404) are both connected to the control component (406) by electrical signals; and the control component (406) has a wireless communication module for communicating with the wireless communication unit (3a) to transmit a push injection speed signal and a push injection damping signal.

7. A force feedback foot-controlled intravenous push pump system according to claim 4, Features: The injection pump (1) is equipped with an audible and visual alarm (6), which has an alarm light and an alarm horn. The audible and visual alarm (6) is electrically connected to the electronic control unit (3). When the injection pressure is overloaded, the audible and visual alarm (6) generates an audible and visual alarm signal.

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