CN112089923B

CN112089923B - Infusion support capable of automatically and uniformly heating

Info

Publication number: CN112089923B
Application number: CN202011118654.6A
Authority: CN
Inventors: 邢倩倩; 路莎; 赵倩; 王洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2022-03-29
Anticipated expiration: 2040-10-19
Also published as: CN112089923A

Abstract

An infusion support for automatic and uniform heating comprises an infusion bag, an infusion tube, a heating device, a support frame and a control switch; the support frame comprises a cross rod, a stand column, a base and a hook, the infusion bag is hung on the hook arranged on the cross rod, and the heating device is arranged on the stand column; the control switch is used for controlling the heating device to heat the liquid medicine during infusion; the heating device is characterized by comprising a heating body, wherein the heating body comprises a heating rod and a heat conduction layer wrapping the heating rod, the heating rod is cylindrical, the diameter of the heat conduction layer is reduced from top to bottom, and a spiral communication channel is arranged on the outer layer of the heating body from top to bottom; the heating body also comprises heat insulation layers arranged at the two ends; the heating device also comprises a heat preservation box for containing the heating body.

Description

Infusion support capable of automatically and uniformly heating

Technical Field

The invention belongs to the field of medical appliances, further belongs to the field of infusion, and further belongs to the field of infusion heating.

Background

Infusion is a very common treatment or nutrition supplement mode in modern medical treatment, and liquid medicine enters blood vessels in an intravenous injection mode. However, in the case of a low temperature, especially in cold winter, the cold liquid medicine enters the veins of the human body to stimulate the blood vessels, which may cause discomfort such as cold limbs and numbness, and the serious patient may cause rash, distending pain, etc., and may also become a cause of some diseases, especially the elderly and the infirm, with greater danger. There was a news article that described an old person who included a tube for grandchild infusion in the mouth to heat the infusion. This will not occur if the infusion heater is present.

In the existing transfusion heater in the prior art, a transfusion tube through which liquid medicine flows is mainly wrapped in the heater to heat the liquid medicine flowing through, however, the heating process is short in heating path and short in heating time, and under the condition that the liquid medicine on the periphery of the transfusion tube is heated, the liquid medicine cannot reach to form convection with the liquid medicine on the inner side of the transfusion tube, namely flows through a heating section, so that the heating mode is difficult to obtain a good heating effect. Meanwhile, the temperature of the heater is set to be constant, the higher temperature is set at the beginning, and the medicine denaturation is easy to occur to the medicine liquid at the periphery of the transfusion tube due to the temperature mutation, so that the medicine is ineffective. In order to solve the problems in the prior art, the invention provides an automatic uniform infusion heating rack.

Disclosure of Invention

In order to solve the problems that the heating path is short and the medicine is easy to denature due to single heating temperature in the prior art, the invention provides the automatic heating frame, which increases the heating path, can realize uniform heating and avoid the medicine deterioration problem caused by temperature mutation. The specific implementation mode is as follows:

an infusion support capable of automatically and uniformly heating comprises an infusion bag, an infusion tube, a heating device, a support frame and a control switch;

the support frame comprises a cross rod, a stand column, a base and a hook, the infusion bag is hung on the hook arranged on the cross rod, and the heating device is arranged on the stand column; the control switch is used for controlling the heating device to heat the liquid medicine during infusion;

the heating device is characterized by comprising a heating body, wherein the heating body comprises a heating rod and a heat conduction layer wrapping the heating rod, the heating rod is cylindrical, the diameter of the heat conduction layer is reduced from top to bottom, and a spiral communication channel is arranged on the outer layer of the heating body from top to bottom; the heating body also comprises heat insulation layers arranged at the two ends; the heating device also comprises a heat preservation box for containing the heating body.

The heating device also comprises a servo motor and a connecting rod, and the connecting rod is connected with the heat insulation layer at one end of the heating body with the small diameter; the connecting rod can drive the heating body to rotate and move transversely under the driving of the servo motor.

The infusion support capable of automatically and uniformly heating further comprises a driving gear and a fixed shaft sleeve, wherein a gear on the outer side of the driving gear is communicated with an output shaft of the servo motor and rotates along with the output shaft, and the fixed shaft sleeve is fixed on an upright post of the support frame; the connecting rod passes drive gear and fixed axle sleeve, the connecting rod surface is provided with the external screw thread, drive gear and fixed axle sleeve are provided with the internal thread, external screw thread and internal thread mutually support.

According to the infusion support capable of automatically and uniformly heating, the heating body is provided with the clamping device for clamping the infusion tube.

According to the infusion support capable of automatically and uniformly heating, the shape and the size of the inner space of the closed heat preservation box are the same as those of the heating body.

According to the infusion support capable of automatically and uniformly heating, the two ends of the heating body are respectively provided with the buckles for fixing the infusion tube.

According to another preferred embodiment of the invention, the flow measuring device further comprises a flow measuring unit, wherein the flow measuring unit comprises an LED light source, a photoelectric detector, a bearing frame and a fixing hole.

According to another embodiment of the invention, the carrying frame comprises a hollowed bottom surface, the hollowed bottom surface is a circular opening, an open space is formed between the hollowed bottom surface and the outside through a narrow channel, the width of the narrow channel is smaller than the diameter of the circular opening, and the diameter of the circle is smaller than the diameter of the infusion pot on the infusion tube.

Advantageous effects

1. The heating body is a frustum with a large upper part and a small lower part, wherein the inner heating rod is cylindrical, the diameter of the outer heat conduction layer is changed from top to bottom, so that the temperature of the outer surface of the heating body is increased from top to bottom, the infusion tube is wound on the heating body, the heating temperature is gradually increased from low to high, and the liquid medicine denaturation caused by temperature shock is avoided.

2. The spiral channels are uniformly arranged around the heating body, the infusion tube is wound on the heating body, the heating path is increased, and enough time for convection of the liquid medicine is reserved under the condition that the heating path is enough, so that the liquid medicine is heated more uniformly and fully. Particularly, the heating body which is linearly changed is matched, so that the heating is easier, the temperature change is softer and more uniform, and the heating effect is better.

Drawings

FIG. 1 is a schematic structural view of an infusion support with automatic and uniform heating according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a heating body according to an embodiment of the present invention;

fig. 3 is a schematic structural view of another embodiment of the heating body of the present invention;

FIG. 4 is a schematic view of the structure of the heat-retaining case of the heating body of the present invention;

FIG. 5 is a schematic view of the winding mechanism of the infusion tube of the present invention;

FIG. 6 is a structural view of the working state of the wound infusion tube of the present invention;

fig. 7 is a schematic structural diagram of a flow rate measuring unit according to another embodiment of the present invention.

Reference numerals

The infusion bag comprises an infusion bag 1, an infusion tube 2, an infusion kettle 21, a flow control valve 22, a needle 23, a support frame 3, a cross rod 31, an upright rod 32, a base 33, a hook 34, a universal wheel 35, an intelligent control system 4, a flow measurement unit 41, an LED light source 411, a photoelectric detector 412, a bearing frame 413, a fixing hole 414, a heating system 5, a heating body 51, a heating rod 511, a heat conduction layer 512, a heat insulation layer 513, a channel 514, a buckle 515, a heat preservation box 52, a rotation and translation driving device 53, a servo motor 531, a connecting rod 532, an output shaft 533, a driving gear 534 and a fixing shaft sleeve 535.

Detailed Description

Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. The embodiment is only used for describing the specific implementation mode of the invention, so as to facilitate the better understanding of the invention for those skilled in the art, and is not limited by the protection scope of the invention. Any modifications or equivalent substitutions made in the present invention shall be covered by the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Fig. 1 shows an infusion support capable of automatically and uniformly heating, which comprises an infusion bag 1, an infusion tube 2, a heating device 5 and a support frame 3, wherein the support frame comprises a cross rod 31, an upright rod 32, a base 33 and a hook 34, the infusion bag 1 is hung on the hook 34 arranged on the cross rod 31, the heating device 5 is arranged on the upright rod 32, and a part of the infusion tube 2 penetrates through the heating device 5.

Fig. 2 to 3 show a specific configuration of the heating body of the present invention. The heating device 5 comprises a heating body 51, and the heating body 51 comprises a heating rod 511 and a heat conduction layer 512 wrapping the heating rod. The outside from the top down of the heat-conducting layer of heating body 51 is provided with spiral helicine intercommunication channel 514, partly twine in channel 514 of transfer line 2, increased the heating distance on the one hand, increased the time of liquid medicine convection current for the liquid medicine is enough to heat wantonly, and on the other hand, the transfer line inlays in the channel, and at least trilateral can heat, makes the heating effect better. The two ends of the channel 514, which are close to the heating body, are provided with buckles 515 for fixing the infusion tube, and the infusion tube 2 is fixed in the winding and heating processes, so that the infusion tube is not scattered and the heating is not influenced.

The heating rod 511 is cylindrical, and the diameter of the heat conduction layer 512 becomes smaller from top to bottom, so that the temperature of the outer layer of the heat conduction layer 512 becomes linearly larger from top to bottom, and the liquid medicine firstly passes through a low-temperature region in the flowing process, then the temperature is slowly increased, and finally the target temperature is reached, on one hand, the temperature increase is not too severe, for example, the temperature is increased from 0 ℃ to 37 ℃, and the instantaneous temperature change is 37 ℃, so that the medicine denaturation failure is caused, and the human health is influenced. The specific case of the linear change from the top to the bottom temperature varies depending on the ambient temperature and the temperature of the heating rod, and it is preferable that the change amount from the ambient temperature in the lowest temperature region should be 10 ℃ or less and then the temperature is raised to a target temperature, for example, 37 ℃ or 38 ℃ in a gradient change manner. On the other hand, the adoption of a soft heating mode can ensure that the heat absorption is more sufficient. Wires are hidden in the heat conduction layer 512 and connected with the electrodes of the heating rod 511 for supplying power to the heating rod 511. And a temperature control device for controlling the heating power. The heating body 51 further includes heat insulating layers 513 disposed at both ends.

As shown in fig. 4, the heating device 5 further includes a heat preservation box 52 for containing the heating body, the heat preservation box 52 is fixed on the support frame 3, an inner space of the heat preservation box 52 is the same as the heating body 51 in shape and is used for accommodating the heating body 51, so that the infusion tube 2 is isolated from external heat exchange in the heating process, and the heating effect is better. The heat preservation box 52 is divided into two half boxes connected by hinges, the closed parts of the two half boxes are provided with mutually matched buckles, and the joint surface of the two half boxes is provided with sealing rubber.

According to one embodiment of the present invention, the infusion tube 2 can be wound around the heating body 51 by manual or automatic means. No matter which mode is adopted, one end of the infusion tube 2 is manually placed in a channel of a starting end (the end with the small diameter), then the infusion tube 2 is fixed by the buckle 515 and wound, and the infusion tube is fixed by the tail end buckle 515 after winding is finished, so that the infusion tube is prevented from being loose. In the winding process, attention is paid to control of force, on one hand, attention is paid to the fact that the infusion tube is flattened due to too large force, so that liquid medicine cannot be conveyed smoothly, on the other hand, the infusion tube cannot be in full contact with the heat conducting layer due to too small force, so that sufficient heating cannot be achieved, and the infusion tube is sealed by the heat preservation box after winding is completed.

One preferred winding method proposed by the present invention is an automatic winding method using an automatic winding mechanism 53, and fig. 5 to 6 show a specific operation mode of the automatic winding mechanism. The automatic winding mechanism 53 comprises a servo motor 531 and a connecting rod 532, and the connecting rod 532 is fixedly connected with a heat insulation layer at one end of the heating body with a smaller diameter; the connecting rod 532 can drive the heating body 51 to rotate and simultaneously move in the transverse direction under the driving of the servo motor 531. The specific implementation mode is as follows: the automatic winding mechanism 53 further comprises a driving gear 534 and a fixed bushing 535, wherein the outer gear of the driving gear 534 is communicated with the output shaft 533 of the servo motor 531 and rotates therewith, and the fixed bushing 535 is fixed on the upright post 32 of the support frame; the connecting rod 532 passes through the driving gear 533 and the fixing shaft sleeve 535, an external thread is provided on the outer surface of the connecting rod 532, an internal thread is provided on the driving gear 533 and the fixing shaft sleeve 535, and the external thread and the internal thread are matched with each other. The servo motor 531 rotates to drive the output shaft 533 to rotate, the outer gear of the output shaft 533 is meshed with the outer gear of the driving gear 533, so that the driving gear 533 rotates, the external thread of the connecting rod 532 is meshed with the internal thread of the driving gear 533 and rotates with the external thread, and the rotation of the heating body 51 is realized. The external thread of said connecting rod 532 also meshes with the internal thread of the fixed bushing 535, so that the connecting rod 532 also rotates in the internal thread of the fixed bushing 535, i.e. at the same time a lateral movement of the heating body is also achieved. When one end of the infusion tube is fixed in the channel at one end of the heating body, the heating body is rotated and transversely moved, and the infusion tube is wound.

The automatic winding structure 53 further comprises a clamping device 54 arranged at the upper part of the automatic winding structure, wherein the clamping device 54 is used for clamping the infusion tube 2, so that the infusion tube 2 is wound while the infusion tube is kept in a vertical state, and the infusion tube 2 is kept in a reasonable tension, so that the winding force is in a proper range. The rotation and transverse moving speed of the heating body 51 are suitable for the space of the channel arranged on the heating body, and the transfusion tube is always kept still in the vertical direction while winding.

According to another embodiment of the invention, said connecting bar 532 is foldable, transforming the heating body from a transversal arrangement to a longitudinal arrangement after the winding has been completed. At this time, the channels 514 are provided toward the heating body 51 in the vertical direction so as to protrude from the heating body, in the direction in which the channels 514 are provided near both ends of the heating body 51 in accordance with the extending direction of the infusion tube 2 (see fig. 3). The arrangement avoids the heating device from occupying an overlarge position in the transverse direction, and saves the space.

According to another preferred embodiment of the invention, the flow measuring unit is further defined as shown in fig. 7. The flow measurement unit 41 comprises an LED light source 411, a photodetector 412, a carrying frame 413 and a fixing hole 414, and the flow measurement unit 41 is arranged on the vertical rod 32 through the fixing hole 414; the LED light source 411 and the photodetector 412 are oppositely disposed on two sides of the central blank area of the carrying frame, and the central blank area of the carrying frame 413 is used for accommodating the infusion pot 21 of the infusion tube. The bearing frame 413 comprises a hollow bottom surface, the hollow part of the bottom surface is a circular opening 415, an open space is formed between the bottom surface and the outside through a narrow passage 416, the width of the narrow passage 416 is larger than the diameter of the infusion tube and smaller than the diameter of the circular opening 415, and the diameter of the circular opening 415 is smaller than the diameter of the infusion pot 21 on the infusion tube. The infusion tube connected with the lower end of the infusion pot 21 passes through the narrow passage 416 and enters the circular notch 415, and the changed part of the lower end of the infusion pot 21 is embedded into the circular notch 415, so that the infusion pot 21 is fixed to a certain extent, and the infusion pot 21 is positioned between the bearing frames 413. The LED light source 411 and the photoelectric detector 412 are started to work, the LED light source 411 emits light with constant intensity, when the liquid medicine drops, the light intensity received by the photoelectric detector 412 is weakened, so that square waves in a certain time can be obtained, and the current infusion speed can be obtained through a period of time, such as the number of square wave cycles within 1 minute. To realize the calculation of the infusion speed, the flow measurement unit 41 further comprises a timer 415 and a counter 416 for timing while the LED light source 411 and the photodetector 412 are activated, wherein the timer 415 is connected to the processor 42, counts when the timing reaches a preset time, and transmits data to the processor 42. The microprocessor 42 obtains the heating power required by the heating device 5 according to the current infusion speed, and controls the temperature control device to adjust the heating power through the microcontroller.

According to another preferred embodiment of the invention. The invention also comprises an alarm. When the flow measurement unit 41 cannot detect liquid drops within a certain time range, an alarm is used for alarming and prompting a patient or family members, or the liquid drops are directly communicated with a nurse station to inform a nurse of coming treatment, so that the influences of blood return and the like caused by the fact that liquid medicine is hung up and a needle is not pulled out or other treatments are not carried out in time are avoided. The alarm 48 is also in real-time communication with a nurse station prompting system, and can remind a nurse of coming treatment at the first time.

According to another preferred mode of the invention, the bottom surface of the base 33 is provided with a plurality of universal wheels 35 for moving the infusion support. Under the condition of need, if go to a toilet or go to the outside and sun-shine, the patient can finish the movement of the infusion support by one person, and the infusion support is convenient and quick.

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and any modifications, substitutions, combinations, and the like without departing from the spirit of the present invention should be included in the scope of the present invention.

Claims

1. An infusion support capable of automatically and uniformly heating comprises an infusion bag, an infusion tube, a heating device, a support frame and a control switch; a flow rate measurement unit; the support frame comprises a cross rod, a stand column, a base and a hook, the infusion bag is hung on the hook arranged on the cross rod, and the heating device is arranged on the stand column; the control switch is used for controlling the heating device to heat the liquid medicine during infusion; the heating device is characterized by comprising a heating body, wherein the heating body comprises a heating rod and a heat conduction layer wrapping the heating rod, the heating rod is cylindrical, the diameter of the heat conduction layer is reduced from top to bottom, and a spiral communication channel is arranged on the outer layer of the heating body from top to bottom; the heating body also comprises heat insulation layers arranged at the two ends; the heating device also comprises a heat preservation box for containing the heating body; the flow measurement unit is used for monitoring the dropping speed of liquid drops in the infusion kettle and calculating the current infusion speed; the heating device also comprises an automatic winding mechanism, the automatic winding mechanism comprises a servo motor and a connecting rod, and the connecting rod is fixedly connected with the heat insulation layer at one end of the heating body with the small diameter; the connecting rod can drive the heating body to rotate under the driving of the servo motor and simultaneously move along the transverse direction; the automatic winding mechanism further comprises a driving gear and a fixed shaft sleeve, an outer gear of the driving gear is communicated with an output shaft of the servo motor and rotates along with the output shaft, and the fixed shaft sleeve is fixed on an upright post of the support frame; the connecting rod passes drive gear and fixed axle sleeve, the connecting rod surface is provided with the external screw thread, drive gear and fixed axle sleeve are provided with the internal thread, external screw thread and internal thread mutually support.

2. The automatic and uniform heating infusion support of claim 1, wherein the shape and size of the inner space of the closed heat preservation box are the same as those of the heating body.

3. The infusion support with automatic uniform heating according to claim 1, wherein two ends of the heating body are respectively provided with a buckle for fixing the infusion tube.

4. The automatic and uniform heating infusion support of claim 1, wherein the automatic winding mechanism further comprises a clamping device for clamping the infusion tube, and the clamping device is arranged above the heating body at a certain distance.

5. The automated, uniformly heated, infusion support of claim 1, wherein the flow measurement unit comprises an LED light source, a photodetector, a carrying frame, and a mounting hole.

6. The infusion support capable of automatically and uniformly heating according to claim 5, wherein the carrying frame comprises a hollowed bottom surface, the hollowed bottom surface is a circular opening, an open space is formed between the hollowed bottom surface and the outside through a narrow channel, the width of the narrow channel is smaller than the diameter of the circular opening, and the diameter of the circular opening is smaller than the diameter of an infusion pot on the infusion tube.