WO2011150561A1

WO2011150561A1 - Injection pump and control method thereof

Info

Publication number: WO2011150561A1
Application number: PCT/CN2010/073469
Authority: WO
Inventors: 谭永宏
Original assignee: 深圳市深科医疗器械技术开发有限公司
Priority date: 2010-06-02
Filing date: 2010-06-02
Publication date: 2011-12-08

Abstract

An injection pump and control method thereof, the injection pump includes an injector installation position, and a push-pull mechanism (24) for driving the injector, and also includes an injector recognition device which effectively recognizes the injector.

Description

Injection pump and control method thereof

Technical field

The invention relates to medical and health equipment, in particular to a syringe pump and a control method thereof.

Background technique

The syringe pump is a device that is used to drive a syringe to achieve automatic injection, and usually has an effective control of the injection speed.

At present, medical safety issues have caused widespread concern. In addition to diagnostic factors, medical technology, and drug-induced factors, the use of inferior medical equipment and equipment can sometimes be a cause of medical malpractice. For example, some unqualified medical and health products are flooding the market. The following defects may occur: sanitary conditions are not up to standard, inferior materials harmful to the human body are used, and the size or structure is unreasonable, which affects the dosage. The quality is poor and easy to damage, and the performance is unstable. There are even functional defects that cannot achieve basic medical functions. Once these unqualified products are used clinically, they will bring great safety hazards to people's health. In particular, the syringe is one of the most used medical devices, and its safety is especially worthy of attention. Regardless of disposable syringes or multiple syringes, in order to reduce unnecessary potential hazards, technical measures should be taken to prevent use. Unknown device.

technical problem

The main technical problem to be solved by the present invention is to provide a syringe pump, a syringe identification device capable of identifying a syringe, and an identification and control method thereof.

Technical solution

In order to solve the above technical problems, the present invention provides a syringe pump, A syringe mounting position, and a push-pull mechanism for driving the syringe are also included, and a syringe identification device for identifying the syringe is also included.

Further, the injector identification device includes a detection unit and an actuator; the detection unit is configured to detect an identification signal returned from the syringe, and output an execution signal to the actuator according to the detection result.

In one embodiment, the detecting unit is an image sensor for detecting the identification signal for detecting a coating or an identification pattern provided on the syringe as the identification portion. For example, an infrared light tube and an infrared sensor are used; the infrared light tube is used to illuminate a coating or an identification pattern, and the infrared sensor is used to sense the coating or the identification pattern to obtain an identification signal. Or the image sensor includes a CMOS (image sensor), an ultraviolet sensor, or the like that can detect an image that recognizes an image.

Preferably, the injector identification device further includes a comparison unit connected between the image sensor and the actuator for comparing whether the detected recognition pattern is consistent with a preset identification pattern, and then outputting a corresponding Execution signal to the actuator.

The syringe pump further includes a pressure shank for fixing the syringe barrel, and the detecting unit is mounted on the pressure shank.

In another embodiment, the detecting unit is a contact sensor, a reflective light sensor or a through-beam light sensor for sensing a protrusion of the surface of the syringe.

The syringe identification device further includes a reminder unit, and the detection result of the detection unit is output to the reminder unit.

The invention also protects an injection device comprising a syringe pump and a syringe, The syringe pump includes a syringe mounting position and a push-pull mechanism for driving the syringe, the syringe pump further including the aforementioned syringe identification device, the syringe being provided with an identification portion for identification by the syringe identification device.

Further, the identification portion is an identification pattern, a coating or a protrusion.

The invention also protects a control method of a syringe pump, comprising the following steps:

Step A: Before the injection pump performs the injection, the syringe is first identified by the syringe identification device;

Step B: If the syringe passes the identification authentication, an execution signal for starting the injection is sent to the syringe pump, and if the syringe does not pass the identification authentication, an execution signal for stopping the injection is issued to the syringe pump.

Further, the identification method of the step A includes any one of the following:

Detecting the coating or identification pattern on the syringe by means of image sensing;

Whether there is a protrusion on the syringe is detected by contact induction, contrast light sensing or reflective light sensing.

The specific manner of determining that the syringe passes the identification authentication in the step B includes at least one of the following:

When the detecting unit detects that there is a coating or an identification pattern on the syringe, it is authenticated by the identification;

When the detecting unit detects the identification pattern on the syringe, comparing whether the identification pattern is consistent with the preset identification pattern, and the identification pattern is consistent with the preset identification pattern, and then the identification is authenticated;

When the detecting unit detects that there is a protrusion on the syringe, it authenticates by identification.

Beneficial effect

The beneficial technical effect of the present invention is that by providing an identification portion for the syringe pump on the syringe, it is possible to first identify and authenticate the syringe by the identification device on the syringe pump before the injection, and if the syringe passes the identification authentication, the injection is performed. The pump opens the injection actuator and begins the injection; if the syringe does not pass the identification certification, the syringe pump closes the injection actuator and stops the injection. With the present invention, the syringe can be effectively identified. Therefore, the safety hazard caused by the counterfeit syringe can be effectively avoided.

DRAWINGS

Figure 1 is a perspective view of a syringe pump according to an embodiment of the present invention;

2 is a schematic view of a syringe according to an embodiment of the present invention;

3 is a schematic view of a syringe according to another embodiment of the present invention;

4 is a perspective view of a pressure handle in a syringe pump according to an embodiment of the present invention;

Figure 5 is a block diagram of a syringe identification device of the present invention;

Figure 6 is a block diagram of another syringe identification device of the present invention;

Fig. 7 is a flow chart showing a control method of a syringe pump according to an embodiment of the present invention.

Embodiments of the invention

The present invention will be further described in detail below with reference to the accompanying drawings.

Embodiment 1:

The injection device of the present embodiment includes a syringe pump and a syringe. The syringe pump includes a syringe mounting position and a push-pull mechanism for driving the syringe. The syringe pump further includes a syringe identification device provided with an identification portion for identification by the syringe identification device.

Referring to FIG. 1, the syringe pump includes a base 20, a syringe mounting position 21 disposed on the base 20, a pressure handle 22, a retaining groove 23, a push-pull mechanism 24, a control interface 25, a display screen 26, and a syringe for identifying the syringe. Syringe recognition device, etc.

Referring to Figures 2 and 3, the syringe includes a syringe 11 and a pusher 12 extending into the syringe 11, and an identification portion 14 is provided on the syringe. For example, the identification portion 14 may be a coating on a syringe, coated with a colorless ink, a colored ink, a colorless pigment that absorbs infrared rays, or a colored pigment on the syringe 11 or the push rod 12; or a dot or The specific identification pattern of other shapes is formed by ink, pigment, or the like, and may be formed by sticking, engraving, etc.; the identification portion 14 may also be a protrusion 15 on the surface of the syringe, from the outer surface of the syringe 11 or the push rod 12 The extension is formed, preferably in a direction parallel to the axis of the syringe 11.

The syringe mounting position 21 on the syringe pump is used to mount the syringe, the pressure handle 22 can be fixed against the syringe 11 of the syringe, the push-pull mechanism 24 is used to drive the push rod 12 of the syringe, and the control interface 25 is used to input the control signal. The display 26 is used to display operational information. When the syringe is placed at the syringe mounting position 21 of the syringe pump, the syringe 11 is rotated to position the identification portion 14 with the syringe recognition device, and the syringe recognition device can detect the identification portion 14 to recognize the syringe. Preferably, the opening of the rear end of the syringe 11 is further provided with a radially outwardly extending flange 13 , and the syringe pump 20 is further provided with a slot 23 for clamping the flange 13 to fix the syringe, and the flange 13 is embedded in the card In the tank 23, the syringe 11 is prevented from moving with the push rod 12 during the injection. The thickness t of the flange 13 can be 1 mm to 3 mm, which is just embedded in the card slot 23. The identification portion 14 is disposed at a position corresponding to the pressing handle 22, and the distance L between the flange 13 and the flange 13 is 8 mm to 12 mm. When the pressure is applied to the upper portion of the syringe 11, the identification portion 14 can be detected. For example, in a conventional syringe pump, the width of the card slot 23 is 2 mm, the thickness t of the flange 13 can be set to 1.8 mm, and the distance L between the identification portion 14 and the flange 13 is 10 mm.

The advantage of providing the protrusion 15 on the surface of the syringe is that the manufacturing process is simple, and the protrusion can be formed in one time with the syringe, with little increase in cost. However, if the protrusion is to be reworked on the molded syringe, the infringement is extremely difficult.

As shown in FIG. 4, the pressing handle 22 specifically includes a pressing shaft 221 and a pressing rod 222 connected to the end of the pressing shaft 221, and the pressing shaft 221 is elastically connected with the base 20 and fixed between the syringe mounting position 21 and the groove 23, and the pressing shaft 221 can be The pressing rod 222 is pressed against the syringe 11 of the syringe under the action of elasticity to prevent it from coming off the syringe mounting position 21, and the pressing shaft 221 can also be rotated to press the syringe 11 when pulled out to a certain height. The pressure handle 22 further has a detection position 223 for detecting the identification portion 14, which corresponds to the position of the identification portion 14 on the syringe, and can be disposed just at the bottom side of the pressure bar 222, and can be simultaneously pressed while the syringe is being pressed. Exactly detected.

As shown in FIGS. 5 and 6, the syringe identification device 24 includes a detecting unit 30, an actuator 32, a reminding unit 33, and the like, and the position of the detecting unit 30 corresponds to the position of the identifying portion 14 for detecting the return from the syringe. The signals are outputted to the actuator 32 according to the detection result, and the detection unit 30 also has various types according to the different types of the identification sections 14.

When the coating or the identification pattern is used as the recognition portion 14, the detecting unit 30 is an image sensor for detecting the identification signal, and may include, for example, an infrared light emitting tube 301 and an infrared sensor 302; the infrared light emitting tube 301 is used to illuminate the coating on the set syringe. Or identifying the pattern to absorb infrared light, and the infrared sensor 302 is configured to sense the coating or the identification pattern by receiving an infrared identification signal returned from the syringe; the image sensor may also employ a CMOS or ultraviolet sensor capable of receiving the return optical on the syringe The identification signal or the UV identification signal senses a complete coating or identification pattern for easy identification.

When the protrusion 15 is used as the recognition unit 14, the detection unit 30 is a contact sensor, a reflection type photosensor, or a through-beam type photo sensor located on the upper side or the upper side of the syringe, and is similar to the case where the identification unit 14 is a coating layer or a recognition pattern. The protrusions 15 may be correspondingly disposed on the syringe mounting position 21 or the pressure handle 22, and the contact sensor is used to sense the protrusions 15 at corresponding positions on the syringe, and the reflective light sensor or the through-beam sensor is used to pass through the protrusions 15, respectively. Reflective effect or shading effect, The protrusion identification signal or the optical identification signal returned on the infusion syringe is received to sense the protrusion 15.

After the detection unit 30 completes the detection, an execution signal is output to the actuator 32 according to the detection result, and the actuator 32 performs a corresponding operation according to the execution signal for driving the push-pull mechanism 24 to start the injection of the syringe, stop the injection, detect the injection speed, Convert injection mode, etc.

When the identification portion 14 is an identification pattern on the syringe, preferably, in order to improve the recognition accuracy, the syringe recognition device further includes a comparison unit 31 connected between the detection unit 30 and the actuator 32, the detection unit 30 being an image sensor, and the comparison unit 31 It can be a control device such as a PLC (programmable controller), and when the image sensor senses the identification signal returned from the syringe, compares whether the acquired identification pattern is consistent with the preset identification pattern, and then, the output starts to be injected, The execution signal such as the injection state is started to be detected to the actuator 32, and otherwise the execution signal such as the stop injection is output to the actuator 32. The comparison unit 31 can also output a detection result to the reminding unit 33 for reminding the user that the injection has been started or stopping the injection so that the user can change the syringe. The reminder unit 33 can be the display 26 or the sounding device. Of course, the comparison unit 31 may not be included, and as long as the detection unit 30 detects the identification pattern, the execution signal is immediately output to the actuator 32.

When the recognition portion 14 is the protrusion portion 15 of the syringe surface, when the detection unit 30 detects that the corresponding position of the syringe surface has the protrusion portion 15, the execution of the start injection, the start detection of the injection state, and the like are immediately output to the actuator 32; otherwise, if the detection is performed; The unit 30 does not detect that the corresponding position of the syringe surface has a protrusion 15, Then, an execution signal for stopping the injection or closing the related operation is output to the actuator 32. At the same time, the detecting unit 30 can also output the detection result to the reminding unit 33 for reminding the user to replace the syringe.

Embodiment 2:

The invention also protects a control method of a syringe pump, as shown in FIG. 7, the method mainly comprises the following steps:

Step S701: The syringe is installed at the syringe mounting position 21 of the syringe pump, and the syringe pump is powered.

Step S702: Before the syringe pump is injected, the syringe is identified by the syringe recognition device. For example, the detecting unit 30 identifies the identification portion 14 on the syringe by detecting an identification signal returned from the syringe. The detection method differs depending on the identification unit 14 of a different type. When the recognition unit 14 is an identification pattern on a syringe, the recognition pattern is detected by image sensing. When the recognition portion 14 is the protrusion portion 15 on the surface of the syringe, it is detected whether or not the protrusion portion 15 is provided by contact induction, incident light induction, or reflection type light induction.

Step S703: It is judged whether the authentication is passed, and if yes, the process goes to step S705, otherwise the process goes to step S704.

When the identification portion 14 is a coating or identification pattern on the syringe, in an identification authentication method, if the detection unit 30 detects that there is a coating or an identification pattern on the syringe, indicating that the identification is authenticated, the process proceeds to step S705, otherwise the process fails. The identification authentication is performed, and the process proceeds to step S704. In another more accurate identification and authentication method, after detecting the identification pattern, the detecting unit 30 compares whether the detected identification pattern is consistent with the preset identification pattern, and Go to step 705; otherwise, the authentication is not passed, and the process proceeds to step S704. When the recognition portion 14 is the protrusion portion 15 of the syringe surface, if the detection unit 30 detects that the corresponding position of the syringe surface has the protrusion portion 15, indicating that the authentication is confirmed, the process proceeds to step S705, and otherwise the authentication is not passed, and the process proceeds to step S704.

Step S704: the syringe does not pass the identification authentication, and then sends an execution signal to the injection pump to stop the injection, so that the actuator 32 stops driving the syringe for automatic injection, and can also output the detection result to the reminding unit 33, for example, by using the screen display or sounding. The method prompts the user to replace the syringe, and after the replacement, returns to step S702 to re-detect.

Step S705: By identifying the authentication, an execution signal to start the injection is sent to the syringe pump, the actuator 32 of the syringe pump is driven to perform the automatic injection, and the detection result can be output to the reminding unit 33 to remind the user to perform the corresponding operation.

The syringe pump and the control method thereof of the present invention can effectively identify the syringe by detecting the specific identification portion 13 on the syringe, and only use the syringe that is authenticated and authenticated on the syringe pump, thereby effectively preventing the counterfeit syringe from being brought to the patient. Security risks.

The above is a further detailed description of the present invention in connection with the specific embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.

Claims

a syringe pump, A syringe mounting position, and a push-pull mechanism for driving the syringe are also included, further comprising a syringe identification device for identifying the syringe.
A syringe pump according to claim 1, wherein said syringe identifying means comprises a detecting unit and an actuator; the detecting unit is configured to detect an identification signal returned from the syringe, and output an execution signal to said execution based on the detection result mechanism.
A syringe pump according to claim 2, wherein said detecting unit is an image sensor for detecting said identification signal.
A syringe pump according to claim 3, wherein said syringe identifying means further comprises a comparing unit connected between said image sensor and said actuator for comparing the identification detected by said identification signal Whether the pattern coincides with the preset identification pattern, and then outputs a corresponding execution signal to the actuator.
A syringe pump according to claim 2, wherein said detecting unit is a contact sensor, a reflective photosensor or a through-beam photosensor for sensing a protrusion of said syringe surface.
The syringe pump according to claim 2, wherein said syringe recognition means further comprises a reminding unit, and the detection result of said detecting unit is output to said reminding unit.
An injection device comprising a syringe pump and a syringe, The syringe pump includes a syringe mounting position, and a push-pull mechanism for driving the syringe, wherein the syringe pump further includes the syringe identification device according to any one of claims 1-6, wherein the syringe is provided with An identification unit for identification by the syringe identification device.
The injection device according to claim 7, wherein the identification portion is an identification pattern, a coating or a protrusion.
A control method for a syringe pump, comprising the steps of:

Step A: Before the injection pump performs the injection, the syringe is first identified by the syringe identification device;

Step B: If the syringe passes the identification authentication, an execution signal for starting the injection is sent to the syringe pump, and if the syringe does not pass the identification authentication, an execution signal for stopping the injection is issued to the syringe pump.
The method of claim 9, wherein the identifying method of step A comprises any of the following:

Detecting the coating or identification pattern on the syringe by means of image sensing;

Whether there is a protrusion on the syringe is detected by contact induction, contrast light sensing or reflective light sensing.