CN216496555U - Enteral nutrition pump - Google Patents

Abstract

The utility model provides an enteral nutrition pump, which comprises a host and a pump body, wherein the pump body comprises a peristaltic extrusion device and a transfusion device, and the peristaltic extrusion device comprises a driving mechanism and an extrusion mechanism in driving connection with the driving mechanism; the peristaltic extrusion device drives the extrusion mechanism to extrude the infusion tube through the driving mechanism so as to enable liquid in the infusion tube to flow out; the host computer includes: the power supply system is used for providing working power supply for the enteral nutrition pump; the control system is the core for intelligent control and management of the enteral nutrition pump and is electrically connected with the power supply system; the detection unit is connected with the control unit and used for transmitting the detected signal to the control system, and the control system processes the detected signal and issues an instruction according to the processing result; the driving unit is electrically connected with the control system and the driving mechanism respectively; the alarm unit is electrically connected with the control system; and the human-computer interaction unit is electrically connected with the control system and comprises an input device and a display device.

Description

Enteral nutrition pump

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an enteral nutrition pump.

Background

Medically, hospitalized patients with common severe conditions such as post-major surgery, severe acute pancreatitis, severe trauma, acute physiology, and chronic health score II are at risk for severe malnutrition. Metabolic reactions in the stress phase of critically ill patients can lead to the acute consumption of lean body tissues, leading to the impairment of visceral functions and the significant reduction of repair and immune functions. After severe stress, the metabolic rate of the organism is obviously increased, the weight is lost averagely, and malnutrition occurs. A plurality of Random Control Tests (RCT) and system evaluation prove that the early nutrition support helps to improve the clinical outcome of critically ill patients, and the survival rate of the critically ill patients can be improved and the disability rate can be reduced by the early nutrition support 24-48 hours after the patients live in the ICU. Clinical studies have found that delayed nutritional support will lead to rapid onset of malnutrition in critically ill patients and is difficult to correct for later nutritional support. Inadequate nutritional support and negative protein energy balance directly lead to malnutrition and are associated with blood borne infections, affecting the prognosis of ICU patients.

Enteral nutrition is the nutritional support for providing metabolic needs and other nutrients through the gastrointestinal tract, and is determined by the length of time, mental state and gastrointestinal function. Enteral nutrition can be administered orally or by catheter delivery, wherein the delivery is via a nasogastric tube, nasoduodenal tube, nasojejunal tube, and gastrojejunostomy tube.

In recent years, with the growing aging of China and the rapid growth of the nutritional preparation market, the enteral feeding market will also be rapidly growing. Through investigation on the intestinal nutrition pumps in the market, the problems of low feeding precision and poor reliability of most products are found.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides an enteral nutrition pump, which comprises a main machine and a pump body, wherein the pump body comprises a peristaltic squeezing device and an infusion device, and the peristaltic squeezing device comprises a driving mechanism and a squeezing mechanism in driving connection with the driving mechanism; the peristaltic extrusion device drives the extrusion mechanism to extrude the infusion tube through the driving mechanism, so that liquid in the infusion tube flows out;

the host includes:

a power supply system for providing working power supply for the enteral nutrition pump;

the control system is used for intelligently controlling and managing the enteral nutrition pump and is electrically connected with the power supply system;

the detection unit is connected with the control unit and used for transmitting the detected signal to the control system, and the control system processes the detected signal and issues an instruction according to a processing result;

the driving unit is electrically connected with the control system and the driving mechanism respectively;

the alarm unit is electrically connected with the control system and used for responding to an alarm instruction sent by the control system and giving an alarm;

and the human-computer interaction unit is electrically connected with the control system and comprises an input device and a display device.

Preferably, the host machine comprises a first detection unit for detecting the feeding amount, and the alarm unit alarms when the first detection unit detects that the fed amount reaches the set feeding amount.

Preferably, the power supply system includes a battery;

the host comprises a second detection unit, and when the electric quantity of the battery is lower than a set value, the alarm unit gives an alarm.

Preferably, the infusion device further comprises a nutrient solution container connected with the infusion tube;

the host comprises a third detection unit for detecting the amount of the nutrient solution in the nutrient solution container, and when the nutrient solution container is empty, the alarm unit gives an alarm.

Preferably, the host computer comprises a fourth detection unit for detecting whether the infusion tube is blocked, and the alarm unit alarms when the infusion tube is blocked.

Preferably, the host comprises a fifth detection unit for detecting the liquid outflow speed of the infusion tube, and the alarm unit alarms when the liquid outflow speed is greater than or less than a preset value.

Preferably, the liquid outflow speed detected by the fifth detection unit is displayed on the display device.

Preferably, the host comprises a sixth detection unit for detecting whether the infusion device is installed in place, and the alarm unit alarms when the infusion device is not installed in place.

Preferably, the pump further comprises a housing, wherein the housing is a mounting carrier of the main machine and the pump body;

the shell is also provided with a heater for heating the infusion tube.

Preferably, the driving mechanism comprises a motor, the extruding mechanism comprises a rotating disc, a plurality of pressing wheels are arranged on the rotating disc, and the infusion tube is wound on the plurality of pressing wheels;

when the infusion device works, the motor drives the rotary table to rotate through the speed reducer, and the pressing wheels push the liquid in the infusion tube to flow.

Compared with the prior art, the utility model has the following technical effects:

1. the enteral nutrition pump provided by the utility model has high feeding precision and high reliability.

2. The enteral nutrition pump provided by the utility model monitors a plurality of parameters through a plurality of detection units respectively, and part of the parameters can be displayed on the display device through the host control system, so that people can more intuitively know the running condition of the enteral nutrition pump, and can perform targeted adjustment according to the monitored data, and the adjustment is fast and high in accuracy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. In the drawings:

fig. 1 is a schematic structural diagram of a host according to a preferred embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the utility model. All falling within the scope of the present invention.

Referring to fig. 1, an enteral nutrition pump comprises a housing, amain body 1 and a pump body, wherein the housing provides a mounting carrier and external protection for themain body 1 and the pump body, and provides necessary isolation protection measures for electric shock and electromagnetic interference.

The pump body comprises a peristaltic extrusion device and a transfusion device, wherein the peristaltic extrusion device comprises a driving mechanism and an extrusion mechanism in driving connection with the driving mechanism. The infusion device comprises an infusion tube, and the peristaltic extrusion device drives the extrusion mechanism to extrude the infusion tube through the driving mechanism so as to enable liquid in the infusion tube to flow out.

Peristaltic extrusion devices are well known in the art and, therefore, the present invention is not limited to a particular configuration of a peristaltic extrusion device. In this embodiment, the peristaltic extrusion device is a disc type peristaltic extrusion structure, the driving mechanism includes a motor, the extrusion mechanism includes a turntable, a plurality of press wheels are arranged on the turntable, and the infusion tube is wound on the plurality of press wheels. When the infusion tube works, the motor drives the rotary table to rotate through the speed reducer, and the plurality of pressing wheels push liquid in the infusion tube to flow. The enteral nutrition pump provided by the embodiment is matched with an infusion pipeline for use, does not contact with infusion liquid, is used for infusing the nutrient solution to the gastrointestinal tract of a patient in an adjustable mode by a hospital, and the enteral nutrition pump pushes and controls the nutrient solution to flow into the body of the patient through positive pressure generated by the pump.

Thehost 1 includes:

apower supply system 13 for supplying operating power to the enteral feeding pump; thepower supply system 13 comprises a power socket, the power socket is arranged on the back of the shell and is connected to a power supply through a power line, and a power indicator lamp is turned on in a green state to indicate that the equipment is powered on;

acontrol system 11 which is a core of the intelligent control and management of the enteral feeding pump and is electrically connected to thepower supply system 13;

the detection unit is connected with the control unit and used for transmitting the detected signal to thecontrol system 11, thecontrol system 11 processes the detected signal according to the detected signal and issues an instruction according to the processing result so as to ensure the safe and effective operation of the enteral nutrition pump; the utility model does not limit the number, functions and positions of the detection units, and can be arranged at the required position of the enteral nutrition pump according to the actual use requirement;

themotor driving unit 14 is respectively electrically connected with thecontrol system 11 and the motor, and themotor driving unit 14 receives instructions such as the rotating speed, the position and the like of thecontrol system 11 and drives the motor to work according to the specified rotating speed and the steering;

thealarm unit 12 is electrically connected with thecontrol system 11 and used for responding to an alarm instruction sent by thecontrol system 11 and giving an alarm; in this embodiment, the specific number of the alarms included in thealarm unit 12 is not limited, and may be set according to specific use requirements. Meanwhile, the type of the alarm is not limited, and the alarm can be a light alarm, a sound alarm and alarm information displayed by a display device;

and the human-computer interaction unit 15 is electrically connected with thecontrol system 11 and comprises an input device and a display device. The input device may be a button, a switch, a mouse, a keyboard, etc., or may be a touch screen, and in the present embodiment, it is preferable that the input device and the display device are integrated into a touch screen serving as a user interface having both an input function and a display function.

In this embodiment, the input device includes a feeding mode, which includes a continuous mode and an interval mode, for the convenience of the user.

Feeding parameters can be edited before feeding, and the editable feeding parameters comprise: feeding mode, continuous mode feeding rate (suitable for continuous mode), continuous mode feeding dose (suitable for continuous mode), intermittent mode feeding rate (suitable for intermittent mode), intermittent mode single feeding dose, intermittent mode feeding frequency (suitable for intermittent mode), and intermittent mode feeding interval (suitable for intermittent mode).

The parameter setting range can be set according to specific use requirements. In compiling the parameters of the intermittent mode, the time required for the intermittent mode single feed dose infusion to finish cannot be greater than the intermittent mode feed interval.

The feeding speed range of the device is 1-1200 mL/h, the minimum display stepping amount is 1mL/h, and the precision is not more than +/-5%. The user can set feeding reminding time according to the requirement to remind the user to feed.

When the user can click the start button to start feeding, the nutrition pump should feed according to the feeding parameters set by the user, which is as follows:

when in continuous mode, feeding is at a set rate and is completed when the set dose is reached. If no dose is set, feeding will continue until there is an alarm to stop feeding.

When in the intermittent mode, feeding at a set rate, pausing when a single feed dose is reached, and performing a single feed at a feed rate again after the remaining feeding intervals until the set number of feeds is reached.

After the end of a single feeding, if the blockage-preventing tube is opened in a pause, a small-amount feeding (rotating the rotary disc 23 to 90 degrees) needs to be carried out every 30 minutes in the waiting time of the next feeding after the end of each feeding, the tube is prevented from being bet, and if the last small-amount feeding time is too close to the next feeding time (less than 10 minutes), the small-amount feeding is not carried out.

The feeding amount, the accumulated feeding amount, the remaining time, the feeding rate, the feeding times (in the intermittent mode), and the set heating temperature (when the heating device is turned on) are displayed on the display screen during feeding.

During the feeding process, the user can stop feeding at any time, and the last feeding state is kept when the feeding is stopped.

The user can modify the feeding parameters when feeding is stopped, if the modification is a continuous or single feeding dose, number of feeds, feeding interval, need to empty fed volume, single fed interval, number of feeds.

If the feeding mode is modified, it is necessary to empty all the fed amounts, intervals and times of both feeding modes.

The user can start feeding at any time after the feeding is stopped, and feeding is recovered from the last feeding state.

The amount and number of times of feeding has been cleared when feeding is complete.

In the embodiment, when the enteral nutrition pump detects that the fed amount reaches the set feeding amount through the first detection unit, an alarm is given to remind the user of the end of feeding.

In this embodiment, the fast forward may be performed during feeding, i.e. the enteral feeding pump further comprises a feeding fast forward mode comprising an automatic fast forward mode and a manual fast forward mode, the automatic fast forward mode and the manual fast forward mode corresponding to the automatic fast forward button and the manual fast forward button, respectively.

Manual fast forward mode:

the user can press the manual fast forward button and start fast forward by using the set fast forward speed; and when the manual fast forward button is released, the fast forward is stopped, and the user is prompted about the fast forward amount.

And when the fast forwarding amount reaches the manual fast forwarding limit value, automatically stopping, and prompting the user of the fast forwarding amount.

After fast forward has begun, the system should pause the feeding and switch to fast forward speed for infusion.

Feeding should be automatically resumed after the fast feed is stopped.

Fast forward should show fast forward speed, amount of fast forward, and time remaining (in automatic fast forward mode).

When the fast forward speed is less than or equal to the feed speed, the fast forward cannot be started.

The fed and cumulative amounts were metered in as fast-feeds.

When in continuous mode, the fast forward should automatically stop when a fed dose is reached.

When in intermittent mode, the fast forward should automatically stop when a single feed dose of intermittent mode is reached.

In this embodiment, the fast forward rate is used for infusion, and the fast forward is automatically stopped when the fast forward dose is reached, and the user is prompted for the fast forward dose this time. The user can manually terminate the fast forward in advance, and at the moment, the user needs to be prompted about the fast forward amount.

In this embodiment, a battery is provided in thepower supply system 13, and when the enteral nutrition pump detects that the battery level is low through the second detection unit, the enteral nutrition pump will alarm to remind the user that the battery level is low. When the battery power is too low, a prompt of 'battery exhaustion and shutdown to be' appears on the user interface, and the user equipment is prompted to be shut down.

When the enteral nutrition pump is in a feeding state, no operation is performed for more than 10 minutes +/-30 seconds after the pause button is clicked, the enteral nutrition pump gives an alarm to remind a user that the equipment is not operated.

In this embodiment, the infusion set further includes a nutrient solution container connected with the infusion tube, and the nutrient solution container can be a nutrient bag or a nutrient bottle, and when the third detection unit detects that the nutrient bag is empty or the fourth detection unit detects that the infusion tube is blocked and can not convey the nutrient substances in the intestinal tract, the enteral nutrition pump gives an alarm to prompt the user equipment to feed abnormally. When the fifth detection unit detects that the liquid outflow speed of the infusion tube is larger than or smaller than the preset value, the enteral nutrition pump gives an alarm. The liquid outflow speed detected by the fifth detection unit is displayed on the display device.

In this embodiment, the infusion device has an automatic free flow prevention, and no liquid flows out in a non-operating state when the bag is full of water.

If the infusion set is not correctly installed in the infusion set fixing groove, the sixth detection unit can detect that an interface of 'the infusion set is not installed in place' appears in the enteral nutrition pump, and a user is prompted that the infusion set is not installed in place. If the infusion device is installed in place, when the enteral nutrition pump is in a feeding state, the sixth detection unit detects that the infusion tube falls off, and the enteral nutrition pump gives an alarm.

In this embodiment, the housing is further provided with a heater for heating the infusion tube, and preferably, the heater is clamped in the clamping groove of the housing.

In the present embodiment, the accuracy of the heating temperature of the heater is not more than ± 3 ℃.

After confirming that the infusion tube has been disconnected from the patient in the feeding-stopped state, the infusion tube may be vented to avoid feeding air into the patient. In the present embodiment, the exhaust rate was fixed at 2000 mL/h. The amount of exhaust gas is not counted as the cumulative amount. In the embodiment, the air exhaust mode comprises an automatic air exhaust mode and a manual air exhaust mode, and is convenient for a user to use.

Automatic exhaust:

and after the automatic exhaust button is pressed, the air is automatically exhausted, the air is automatically stopped to exhaust after the air reaches the amount in the whole infusion pipe, and the user is prompted about the air displacement. When the air is automatically exhausted, the exhausted air quantity and the remaining time are displayed.

Manual exhaust:

pressing a manual exhaust button to start exhaust; and when the manual exhaust button is released, the exhaust is stopped.

The manual displacement cannot exceed the manual displacement limit.

And when the manual exhaust volume reaches the manual exhaust limit value, the automatic stop is performed, and the user is prompted about the exhaust volume.

In this embodiment, the enteral feeding pump further comprises a flushing mode, wherein the infusion tube can be flushed (the infusion tube is disconnected from the patient during flushing) when the feeding is stopped, and the enteral feeding pump is convenient for the user to use in an automatic flushing mode and a manual flushing mode.

Automatic flushing:

the user can set the flushing rate and the flushing dosage, and the parameter setting range can be set according to the actual use requirement.

And flushing at the set flushing rate, automatically stopping flushing when the flushing dosage is reached, and prompting the user of the flushing dosage.

The user may manually prematurely terminate the flush.

And (3) manual flushing:

the user may hold the manual button, start the flush using the set flush rate, and stop the flush by releasing the manual button.

And when the washing amount reaches the manual washing limit value, the automatic stop is performed, and the user is prompted about the washing amount.

The rinsing rate, the amount of rinsing, and the remaining time (in the automatic rinsing mode) should be displayed during rinsing.

The amount of flushing is not counted in the amount fed and in the cumulative amount.

The flush volume is counted as flush cumulant.

In this embodiment, the enteral feeding pump further includes a reverse pumping mode in which reverse pumping is possible in a stopped state. The automatic reverse pumping mode and the manual reverse pumping mode are convenient for users to use.

Automatic reverse pumping:

the user can set the back pumping speed and the back pumping dosage, and the parameter setting range refers to the parameter requirement.

The system uses the back pumping speed to perform back pumping, automatically stops back pumping when the back pumping dosage is reached, and prompts a user to perform the back pumping dosage.

The user may manually terminate the back draw prematurely.

Manual reverse pumping:

the user can press the manual button, start the back pumping with the set back pumping rate, and release to stop the back pumping.

And when the back pumping amount reaches the manual back pumping limit value, the automatic stop is carried out, and the user is prompted to carry out the back pumping amount this time.

The back suction was not counted in the fed and cumulative amounts.

In this embodiment, the KTO (keep Tube open) mode can be entered according to the user requirement, and the KTO parameter is customized, which is convenient for the user to use.

KTO may be performed during feeding.

Before KTO, the user can set the KTO speed and the KTO duration, and the parameter setting range refers to the parameter requirement.

After a start button is clicked, the system uses the KTO speed to perform infusion, automatically stops the KTO when the KTO is reached, and prompts the user of the KTO amount at this time.

The user can manually terminate the KTO in advance, and at the moment, the user needs to be prompted about the KTO amount.

The system should pause feeding after KTO starts and switch to KTO rate for infusion.

Feeding should be automatically resumed after the KTO is stopped.

And the KTO time is to display the KTO speed, the accumulation amount and the remaining time.

When the KTO rate is greater than the feeding rate, the KTO cannot be started.

KTO amounts were counted as fed and cumulative amounts.

When in continuous mode, the KTO should automatically stop when the fed dose is reached.

When in the intermittent mode, KTO should automatically stop when a single fed dose in the intermittent mode is reached.

The enteral feeding pump can be set by the input device for language, volume, time, date, brightness, etc.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. An enteral nutrition pump is characterized by comprising a host and a pump body, wherein the pump body comprises a peristaltic extrusion device and an infusion device, and the peristaltic extrusion device comprises a driving mechanism and an extrusion mechanism in driving connection with the driving mechanism; the peristaltic extrusion device drives the extrusion mechanism to extrude the infusion tube through the driving mechanism, so that liquid in the infusion tube flows out;

the host includes:

a power supply system for providing working power supply for the enteral nutrition pump;

the control system is used for intelligently controlling and managing the enteral nutrition pump and is electrically connected with the power supply system;

the detection unit is connected with the control system and used for transmitting the detected signal to the control system, and the control system processes the detected signal and issues an instruction according to a processing result;

the driving unit is electrically connected with the control system and the driving mechanism respectively;

the alarm unit is electrically connected with the control system and used for responding to an alarm instruction sent by the control system and giving an alarm;

and the human-computer interaction unit is electrically connected with the control system and comprises an input device and a display device.

2. Enteral nutrition pump according to claim 1, characterized in that the main unit comprises a first detection unit for detecting the feeding amount, the alarm unit alarming when the first detection unit detects that the fed amount has reached the set feeding amount.

3. Enteral nutrition pump according to claim 1, characterized in that the power supply system comprises a battery;

the host comprises a second detection unit, and when the electric quantity of the battery is lower than a set value, the alarm unit gives an alarm.

4. The enteral feeding pump of claim 1, wherein the infusion set further comprises a nutrient solution container connected to the infusion tube;

the host comprises a third detection unit for detecting the amount of the nutrient solution in the nutrient solution container, and when the nutrient solution container is empty, the alarm unit gives an alarm.

5. Enteral nutrition pump according to claim 1, characterized in that the host machine comprises a fourth detection unit for detecting if the infusion tube is blocked, the alarm unit alarming when the infusion tube is blocked.

6. The enteral feeding pump of claim 1, wherein said main unit comprises a fifth detection unit for detecting the liquid outflow rate of said infusion tube, said alarm unit alarming when the liquid outflow rate is greater or less than a preset value.

7. The enteral feeding pump according to claim 6, wherein the liquid outflow rate detected by the fifth detection unit is displayed on the display device.

8. The enteral feeding pump of claim 1, wherein the main unit includes a sixth detection unit for detecting whether the infusion set is in place, the alarm unit alarming when the infusion set is not in place.

9. The enteral feeding pump of claim 1, further comprising a housing, said housing being a mounting carrier for said main body and pump body;

the shell is also provided with a heater for heating the infusion tube.

10. The enteral feeding pump of claim 1, wherein the drive mechanism comprises a motor, the expression mechanism comprises a turntable on which a plurality of pinch rollers are disposed, the infusion tube being wrapped around the plurality of pinch rollers;

when the infusion device works, the motor drives the rotary table to rotate through the speed reducer, and the pressing wheels push the liquid in the infusion tube to flow.

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