Novel injection pump

Abstract

According to the injection pump equipment with the bubble probe, when the injection pump equipment with the bubble probe is used, an injector filled with liquid medicine is installed on the injection pump, then an extension tube connected with the injector is fixed to the bubble probe, and therefore the liquid medicine can be detected through the bubble probe before flowing into a human body; and a detection signal output by the bubble probe is transmitted to the control module of the injection pump, so that emergency measures can be timely started through the control module of the injection pump when air is detected, and the safety of an infusion patient is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a novel injection pump. Background Art

[0002] The syringe pump is a medical device that uses a microprocessor to send out control pulses, which are amplified by circuits to drive the stepper motor to rotate, and then drive the lead screw and nut after gear reduction to convert the motor's rotational motion into linear motion of the nut. The nut is connected to the push rod of the syringe, which can push the syringe's piston to infuse the drug solution. The motor speed can be controlled to adjust the syringe's propulsion speed, thereby adjusting the drug infusion rate and flow rate.

[0003] When using a syringe pump, you must ensure that there is no air in the syringe and the tubing before injection. The current practice relies on manual control by medical staff. The air in the syringe and extension tube is manually emptied and checked to confirm safety before the syringe is installed on the syringe pump for automatic injection. In actual operation, it is easy for human negligence to cause incorrect syringe installation direction, incomplete air exhaustion, or extension tube detachment, thereby endangering the patient's life safety. Utility Model Content

[0004] The present application discloses a novel injection pump, which is used to solve the technical problem of low safety of existing injection pumps.

[0005] In order to solve the above technical problems, the present application provides a novel syringe pump, comprising: a syringe pump housing and a bubble probe;

[0006] The bubble probe is fixed to a first side of the surface of the syringe pump housing, wherein the first side is the side to which the needle hole of the syringe faces when the syringe is assembled to the syringe pump;

[0007] The bubble probe comprises: a bubble detection sensor device, an outer surface of the bubble probe is provided with a limiting portion for fixing the extension tube assembled with the syringe, and the bubble detection sensor device is communicatively connected with the control module in the injection pump housing.

[0008] Preferably, a plurality of syringe mounting grooves are provided on the surface of the injection pump housing, and the bubble probe is specifically fixed at the front end of the syringe mounting groove, wherein the front end of the syringe mounting groove is the end to which the small hole of the syringe barrel points when the syringe is assembled into the syringe mounting groove.

[0009] Preferably, when a plurality of syringe mounting grooves are provided on the surface of the syringe pump housing, each syringe mounting groove is correspondingly configured with one of the bubble probes.

[0010] Preferably, when a plurality of syringe mounting grooves are provided on the surface of the injection pump housing, the limiting portion and the bubble detection sensor device provided in the bubble probe both correspond to the number of the syringe mounting grooves.

[0011] Preferably, the limiting portion is specifically a groove matching the diameter of the extension tube.

[0012] Preferably, the bubble detection sensor device is specifically an ultrasonic detection device;

[0013] The ultrasonic detection device specifically comprises: an ultrasonic transmitting module and an ultrasonic receiving module, and the ultrasonic transmitting module and the ultrasonic receiving module are respectively arranged on two side walls of the groove.

[0014] Preferably, the bubble probe further comprises: a signal processing circuit;

[0015] The signal processing circuit is arranged at the bottom of the bubble probe, and the signal input end of the signal processing circuit is communicatively connected to the signal output end of the bubble detection sensor device, and the signal output end of the signal processing circuit is communicatively connected to the control module in the injection pump housing.

[0016] Preferably, the signal processing circuit is a high-speed operational amplifier circuit.

[0017] Preferably, the signal processing circuit is specifically a circuit module made of a flexible printed circuit board.

[0018] Preferably, a threaded hole is provided on the bubble probe for fixedly connecting with the injection pump housing via a threaded fastener.

[0019] It can be seen from the above technical solutions that this application has the following advantages:

[0020] The present application provides a new type of injection pump device with a bubble probe. When in use, the injection pump filled with liquid medicine is installed on the injection pump, and then the extension tube connected to the syringe is fixed on the bubble probe, so that the liquid medicine can be detected by the bubble probe before flowing into the human body, and the detection signal output by the bubble probe is transmitted to the control module of the injection pump, so that when the presence of air is detected, emergency measures can be initiated in time through the control module of the injection pump to ensure the safety of the infused patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 This is a schematic diagram of the installation structure of a novel injection pump and bubble probe provided in this application.

[0023] Figure 2 This is a schematic diagram of the disassembled structure of a bubble probe of a novel injection pump provided in this application.

[0024] Figure 3 A schematic diagram of the circuit structure of bubble detection for a novel injection pump provided in this application.

[0025] The reference numerals are as follows:

[0026] 1. Injection pump housing; 11. Syringe mounting slot; 12. Control module; 2. Bubble probe; 21. Ultrasonic transmitting module; 22. Ultrasonic receiving module; 23. Signal processing circuit; 24. Threaded hole; 3. Extension tube. DETAILED DESCRIPTION

[0027] The embodiment of the present application discloses a novel injection pump, which is used to solve the technical problem of low safety of existing injection pumps.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] See also Figure 1 , Figure 2 and Figure 3 , a novel syringe pump provided in the embodiment of the present application comprises: a syringe pump housing 1 and a bubble probe 2;

[0031] The bubble probe 2 is fixed to a first side of the surface of the syringe pump housing 1, wherein the first side is the side to which the needle hole of the syringe faces when the syringe is assembled to the syringe pump;

[0032] The bubble probe 2 includes: a bubble detection sensor device, a limiting portion is provided on the outer surface of the bubble probe, which is used to fix the extension tube assembled with the syringe, and is used to fix the extension tube 3 assembled with the syringe. The bubble detection sensor device is communicatively connected with the control module 12 in the injection pump housing 1, and is used to transmit the bubble detection signal of the extension tube 3 to the control module 12 for processing.

[0033] It should be noted that the working principle of the new injection pump provided in this embodiment is: first, the injection pump filled with liquid medicine is installed on the injection pump, and then the extension tube 3 connected to the syringe is fixed on the bubble probe 2, so that the liquid medicine can be detected by the bubble probe 2 before flowing into the human body, and the detection signal output by the bubble probe 2 is transmitted to the control module 12 of the injection pump, so that when the presence of air is detected, emergency measures can be initiated in time through the control module 12 of the injection pump. The emergency measures that can be set include but are not limited to: stopping the injection action and / or issuing an alarm signal to ensure the safety of the infused patient.

[0034] Furthermore, a plurality of syringe mounting grooves 11 are provided on the surface of the syringe pump housing 1, and the bubble probe 2 is specifically fixed at the front end of the syringe mounting groove 11, wherein the front end of the syringe mounting groove 11 is the end to which the small hole of the syringe barrel points when the syringe is assembled into the syringe mounting groove 11.

[0035] It should be noted that, in order to further optimize the overall spatial structure of the new syringe pump, the present embodiment arranges the bubble probe 2 near the syringe mounting groove 11 in the syringe pump housing 1, specifically at the front end of the syringe mounting groove 11, as shown in FIG. Figure 1 shown.

[0036] Furthermore, when a plurality of syringe mounting grooves 11 are provided on the surface of the syringe pump housing 1 , each syringe mounting groove 11 is correspondingly configured with a bubble probe 2 .

[0037] Further, when a plurality of syringe mounting grooves 11 are provided on the surface of the syringe pump housing 1 , the limiting portions and the bubble detection sensor components provided in the bubble probe 2 both correspond to the number of the syringe mounting grooves 11 .

[0038] It is understandable that the novel injection pump structure concept provided in this embodiment can be applied to Figure 1In addition to the syringe pump equipped with a single syringe mounting slot 11 as shown, it can also be used in a syringe pump with multiple syringe mounting slots 11. When multiple syringe mounting slots 11 are arranged on the surface of the syringe pump housing 1, this embodiment provides two configuration methods of the bubble probe 2: one is that each syringe mounting slot 11 is equipped with a bubble probe 2, and each bubble probe 2 includes a set of limiting parts and bubble detection sensor devices; the other is that each syringe mounting slot 11 shares a specific bubble probe 2, and the housing of the bubble probe 2 is configured with multiple sets of limiting parts and bubble detection sensor devices, and each set of limiting parts and bubble detection sensor devices corresponds to a syringe mounting slot 11.

[0039] Furthermore, the limiting portion on the bubble probe 2 is specifically a groove matching the diameter of the extension tube 3 .

[0040] Furthermore, if Figure 2 As shown, the bubble detection sensor device is specifically an ultrasonic detection device;

[0041] The ultrasonic detection device specifically includes: an ultrasonic transmitting module 21 and an ultrasonic receiving module 22, wherein the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 are respectively arranged at the positions of the two side walls of the groove, wherein the ultrasonic transmitting module 21 can send ultrasonic waves with specific parameters according to the control signal sent by the control module 12, and the ultrasonic receiving module 22 receives the ultrasonic waves to form a detection signal, which is pre-processed by the signal processing circuit 23 and transmitted to the control module for processing.

[0042] The bubble probe is provided with a threaded hole 24 for fixedly connecting with the injection pump housing 1 via a threaded fastener.

[0043] Furthermore, if Figure 3 As shown, the bubble probe 2 further includes: a signal processing circuit 23;

[0044] The signal processing circuit 23 is arranged at the bottom of the bubble probe, and the signal input end of the signal processing circuit 23 is communicatively connected to the signal output end of the bubble detection sensor device, and the signal output end of the signal processing circuit 23 is communicatively connected to the control module 12 in the syringe pump housing 1. The signal processing circuit 23 is a high-speed operational amplifier circuit, and the processed signal is then transmitted to the control module 12 to improve the recognition accuracy of the control module 12.

[0045] Furthermore, the signal processing circuit 23 is preferably a circuit module made of a flexible printed circuit board, but may also be made of a printed circuit board made of conventional materials.

[0046] The above is a detailed introduction to a new type of injection pump provided in the present application. For a person skilled in the art, according to the concept of the embodiments of the present application, there may be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A new type of injection pump, characterized in that: include: Syringe pump housing and bubble probe; The bubble probe is fixed to a first side of the surface of the syringe pump housing, wherein the first side is the side to which the needle hole of the syringe faces when the syringe is assembled to the syringe pump; The bubble probe comprises: a bubble detection sensor device, an outer surface of the bubble probe is provided with a limiting portion for fixing the extension tube assembled with the syringe, and the bubble detection sensor device is communicatively connected with the control module in the injection pump housing.

2. A new type of injection pump according to claim 1, characterized in that: A plurality of syringe mounting grooves are arranged on the surface of the syringe pump housing, and the bubble probe is specifically fixed at the front end of the syringe mounting groove, wherein the front end of the syringe mounting groove is the end to which the small hole of the syringe barrel points when the syringe is assembled into the syringe mounting groove.

3. A new type of injection pump according to claim 2, characterized in that: When a plurality of syringe mounting grooves are arranged on the surface of the syringe pump housing, each syringe mounting groove is correspondingly configured with one of the bubble probes.

4. A new type of injection pump according to claim 2, characterized in that: When a plurality of syringe mounting grooves are provided on the surface of the syringe pump housing, the limiting portion and the bubble detection sensor device provided in the bubble probe both correspond to the number of the syringe mounting grooves.

5. A new type of injection pump according to claim 1, characterized in that: The limiting portion is specifically a groove matching the diameter of the extension tube.

6. A new type of injection pump according to claim 5, characterized in that: The bubble detection sensor device is specifically an ultrasonic detection device; The ultrasonic detection device specifically comprises: an ultrasonic transmitting module and an ultrasonic receiving module, and the ultrasonic transmitting module and the ultrasonic receiving module are respectively arranged on two side walls of the groove.

7. A novel injection pump according to claim 1, characterized in that: The bubble probe further includes: a signal processing circuit; The signal processing circuit is arranged at the bottom of the bubble probe, and the signal input end of the signal processing circuit is communicatively connected to the signal output end of the bubble detection sensor device, and the signal output end of the signal processing circuit is communicatively connected to the control module in the injection pump housing.

8. A new type of injection pump according to claim 7, characterized in that: The signal processing circuit is a high-speed operational amplifier circuit.

9. A new type of injection pump according to claim 7, characterized in that: The signal processing circuit is specifically a circuit module made of a flexible printed circuit board.

10. A novel injection pump according to claim 1, characterized in that: The bubble probe is provided with a threaded hole for fixedly connecting with the injection pump housing via a threaded fastener.

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