CN112657008B - Light-resistant injection device - Google Patents
Light-resistant injection device Download PDFInfo
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- CN112657008B CN112657008B CN202011502042.7A CN202011502042A CN112657008B CN 112657008 B CN112657008 B CN 112657008B CN 202011502042 A CN202011502042 A CN 202011502042A CN 112657008 B CN112657008 B CN 112657008B
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Abstract
The invention relates to the field of medical auxiliary instruments, in particular to a light-resistant injection device. The device comprises a suspension unit and an injection unit, wherein the injection unit comprises a bottle stopper puncture outfit, a buffer tube, a flow guide tube, an injection tube and an injection needle, the buffer tube is horizontal, an observation tube is fixed at the top of the buffer tube, the bottom of the observation tube is communicated with the buffer tube, a piston is connected in the observation tube in a sliding manner, and a first shading layer is arranged at the lower end of the observation tube; the guide pipe and the injection pipe are both communicated with the buffer tube, one end of the guide pipe, which is far away from the buffer tube, is fixed with the bottle stopper puncture outfit, and one end of the injection pipe, which is far away from the buffer tube, is fixed with the injection needle; the buffer tube, the flow guide tube and the injection tube are all provided with a second shading layer; the suspension unit comprises at least two fixing rods, the fixing rods are detachably connected with the buffer tube, and lifting appliances are arranged at the upper ends of the fixing rods. The light-shading injection device can shade the medicament in the infusion tube, improve the light-shading effect and slow down the failure speed of the medicament.
Description
Technical Field
The invention relates to the field of medical auxiliary instruments, in particular to a light-resistant injection device.
Background
Some clinical medicines used are easy to oxidize or deteriorate after being exposed to light, the medicines need to be protected from light during storage and use, and the current common light-proof mode is to coat a second dark light-proof layer on the side wall of a volume for containing the medicines or to manufacture a container by adopting dark glass and other materials. However, in the process of infusion, since the medicament needs to be diluted by using the injection, the amount of the diluted liquid medicine is large, and the liquid medicine can be completely infused into the human body in a long time.
The currently used injection apparatus is usually an infusion tube, the infusion tube comprises eight parts of a vein needle or an injection needle, a needle head protective cap, an infusion hose, a liquid medicine filter, a flow rate regulator, a drip cup, a bottle plug puncture outfit, an air filter and the like which are connected, and the partial infusion apparatus also comprises an injection piece, a medicine adding port and the like. In the infusion chamber, liquid medicine can enter a human body from the position of an injection needle through structures such as an infusion hose and a drip cup, the inner diameter of the drip cup is usually far larger than that of the infusion hose, so that the liquid medicine can enter the infusion hose within a certain time after entering the drip cup, the structures such as the existing drip cup and the infusion hose are made of transparent materials, and the liquid medicine in the infusion chamber can be illuminated.
However, experiments show that after part of medicaments such as nifedipine injection are diluted, the medicament content is reduced by 40% after only 0.5h after light exposure. When the medicine is used for transfusion by the transfusion device, the medicine content is reduced due to the light in the transfusion process, so that the treatment effect is reduced, and the treatment of a patient is not facilitated.
Disclosure of Invention
The invention aims to provide a light-shading injection device, which is used for shading a medicament in an infusion tube, improving the shading effect and slowing down the failure speed of the medicament.
In order to achieve the purpose, the invention adopts the following technical scheme: a light-resistant injection device comprises a suspension unit and an injection unit, wherein the injection unit comprises a bottle plug puncture outfit, a buffer tube, a flow guide tube, an injection tube and an injection needle, the buffer tube is horizontal, an observation tube is fixed at the top of the buffer tube, the bottom of the observation tube is communicated with the buffer tube, a piston is connected in the observation tube in a sliding manner, and a first light-shielding layer is arranged at the lower end of the observation tube; the guide pipe and the injection pipe are both communicated with the buffer pipe, the inner diameter of the narrowest part of the buffer pipe is larger than the inner diameters of the guide pipe and the injection pipe, one end of the guide pipe, which is far away from the buffer pipe, is fixed with the bottle stopper puncture outfit, and one end of the injection pipe, which is far away from the buffer pipe, is fixed with the injection needle; the buffer tube, the flow guide tube and the injection tube are all provided with a second shading layer; the suspension unit comprises at least two fixing rods, the fixing rods are detachably connected with the buffer tube, and lifting appliances are arranged at the upper ends of the fixing rods.
The beneficial effect of this scheme does:
1. all be equipped with first light shield layer on buffer tube, honeycomb duct, the injection syringe in this scheme, first light shield layer is for carrying out the material or the colour formation that shelter from to the light, also can reduce the illumination that receives when liquid medicine gets into in buffer tube, honeycomb duct and the injection syringe, can avoid liquid medicine to lose efficacy fast, guarantees that liquid medicine has better treatment.
2. The buffer tube in this scheme is located the horizontality, and the internal diameter of buffer tube is great, and after liquid medicine got into the buffer tube, the bubble of liquid medicine was located the upper end of buffer tube, was difficult to get into in the injection tube, so can avoid the bubble to get into the human body through the injection tube, caused harmful effects.
3. Observe a section of thick bamboo and be located the top of buffer tube, in the gaseous meeting entering of the gathering in the buffer tube observes a section of thick bamboo, upwards promotes the piston and can slide the piston to the top of first light shield layer, and whether the convenience exists a large amount of gases in to the buffer tube and observe, and slide the piston to with first light shield layer relative position when, also can avoid external light to shine on liquid medicine, lead to liquid medicine inefficacy.
Further, the second light-shielding layer is black.
The beneficial effect of this scheme does: compare with dark light shield layer such as brown that uses at present, the shading effect of black light shield layer is better, further avoids light and liquid medicine contact, avoids liquid medicine inefficacy.
Furthermore, be equipped with transparent observation window and the third light shield layer relative with the observation window on the buffer tube, the third light shield layer is used for sheltering from the observation window to can dismantle with the buffer tube and be connected.
The beneficial effect of this scheme does: in the infusion process, the amount of liquid medicine in the buffer tube can be observed through the observation window by opening the third shading layer, when the amount of liquid medicine in the buffer tube is reduced, the liquid medicine in the infusion bottle for storing the liquid medicine is proved to flow out, when the amount of liquid medicine in the buffer tube is reduced, the infusion can be stopped, and the injection needle can be conveniently and timely pulled out.
Further, the top of the buffer tube is cone-barrel shaped.
The beneficial effect of this scheme does: because the density of gas is less than the density of liquid medicine, the bubble that gets into the buffer tube can move along awl tubbiness buffer tube roof, further guarantees that the bubble can get into in the observation section of thick bamboo.
Furthermore, the bottom of the buffer tube is provided with a diversion trench, and the communication position of the injection tube and the buffer tube is positioned at the bottom of the diversion trench.
The beneficial effect of this scheme does: because the bottom of the diversion trench is lower than the bottom of the buffer tube, the liquid medicine in the diversion trench can be ensured to be stored when the liquid medicine in the buffer tube is less, so that the liquid medicine can still enter the human body along the injection tube, the utilization rate of the liquid medicine is improved, and the waste of the liquid medicine is avoided.
Further, the dead lever includes the body of rod of hanging that is connected with the hoist and the spacing body of rod of being connected with the buffer tube, hangs and is equipped with spring and pressure sensor between the body of rod and the spacing body of rod, and the spring both ends are fixed respectively on the body of rod of hanging and the spacing body of rod.
The beneficial effect of this scheme does: when the liquid medicine in the buffer tube is less, the limiting rod body slides to one side close to the hanging rod body under the action of the spring, the pressure detected by the pressure sensor is increased, namely, the numerical value detected by the pressure sensor can assist medical staff to judge whether more liquid medicine still exists in the buffer tube, and the infusion is stopped in time when the liquid medicine is less.
Further, the pressure sensor is connected with an alarm.
The beneficial effect of this scheme does: the alarm automatically prompts after the numerical value detected by the pressure sensor is increased, and the infusion is further stopped in time without completely depending on manual observation.
Drawings
Fig. 1 is an elevational vertical sectional view of embodiment 1 of the present invention;
fig. 2 is an elevational vertical sectional view of embodiment 2 of the present invention;
figure 3 is a partial vertical cross-sectional view of the fixation rod of figure 2.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: buffer tube 1, guiding gutter 11, observation barrel 2, piston 21, piston rod 22, honeycomb duct 3, injection tube 4, dead lever 5, connecting block 51, hoist 52, hang body of rod 53, spacing body of rod 54, spring 55, bracing piece 56, pressure sensor 57, sleeve 6.
Example 1
A light-resistant injection device comprises a suspension unit and an injection unit, wherein the injection unit comprises a bottle stopper puncture outfit, a buffer tube 1, a flow guide tube 3, an injection tube 4 and an injection needle, and the buffer tube 1 is positioned in a horizontal state, as shown in figure 1. The suspension unit comprises two fixing rods 5, a hanger 52 is arranged at the upper ends of the fixing rods 5, and when the suspension unit is actually implemented, the hanger 52 can adopt the forms of a hook, a hanging ring and the like, specifically, the hook is adopted in the embodiment, and the hook is hinged with the upper end of a suspension rod body 53. The connecting block 51 that dead lever 5 lower extreme integrated into one piece has the L shape, and the both ends of buffer tube 1 all are equipped with the draw-in groove relative with two connecting blocks 51 respectively, and the vertical section of connecting block 51 runs through the draw-in groove and with the draw-in groove joint.
The top lateral wall of buffer tube 1 is awl tubbiness, and the gas in the buffer tube assembles at the top of buffer tube, and 1 lateral wall of buffer tube transversely is equipped with transparent observation window, and observation window and buffer tube 1 splice, and paste on the observation window and have black third light shield layer for shelter from the observation window. An observation section of thick bamboo 2 is equipped with at 1 top of buffer tube, and 2 lower extremes of an observation section of thick bamboo are equipped with first light shield layer, and first light shield layer in this embodiment is black, is equipped with the second light shield layer on the buffer tube 1, and an observation section of thick bamboo 2 and buffer tube 1 in this embodiment all adopt black medical plastics material, and 2 lower extremes of an observation section of thick bamboo and buffer tube 1 integrated into one piece, and 2 lateral walls of an observation section of thick bamboo in this embodiment promptly are first light shield layer promptly, and 1 lateral wall of buffer tube promptly is the second light shield layer. The upper end of the observation tube 2 is made of transparent medical plastic material, and the upper end and the lower end of the observation tube 2 are glued and molded. A black piston 21 is slidably sealed in the observation cylinder 2, and a piston rod 22 is integrally formed at the top of the piston 21.
Honeycomb duct 3 and injection tube 4 communicate with the left and right ends of buffer tube 1 respectively, honeycomb duct 3's lower extreme and buffer tube 1's left end integrated into one piece, the upper end of injection tube 4 and buffer tube 1's right-hand member integrated into one piece, all be formed with the second light shield layer on honeycomb duct 3 and the injection tube 4 so, honeycomb duct 3 and injection tube 4's internal diameter all is less than the internal diameter of buffer tube 1's narrowest department. The communication position of the honeycomb duct 3 and the buffer tube 1 is positioned at the top of the buffer tube 1, the bottom of the buffer tube 1 is provided with a diversion trench 11, and the communication position of the injection tube 4 and the buffer tube 1 is positioned at the bottom of the diversion trench 11. The bottle stopper puncture outfit and syringe needle glue respectively and connect in honeycomb duct 3 and 4 one ends of keeping away from buffer tube 1 of syringe, when practical implementation, still are equipped with structures such as liquid medicine filter, velocity of flow regulator and air cleaner on the syringe 4, and the mounting means and the position of these structures all are the same with current transfer line, no longer describe in this embodiment.
The specific implementation process is as follows:
initially, the piston 21 is located at the lower end of the sight glass 2 and the flow rate regulator is in a closed state. During the use, earlier the manual work passes the bottle plug of the infusion bottle of storing liquid medicine with bottle plug puncture ware, be connected bottle plug puncture ware and infusion bottle, then rotate buffer tube 1 to right-hand member state up, open the velocity of flow regulator again, liquid medicine in the infusion bottle enters into in the buffer tube 1 along honeycomb duct 3, make the interior gas of buffer tube 1 discharge from injection tube 4, when liquid medicine in the buffer tube 1 spills over injection tube 4 and buffer tube 1's intercommunication department, the liquid medicine in the buffer tube 1 gets into in the injection tube 4, and flow from the syringe needle, the velocity of flow regulator is closed again to the manual work this moment, and rotate buffer tube 1 to the horizontality.
The two connecting blocks 51 are respectively clamped into the two limiting grooves, the two lifting appliances 52 are hung on hooks used for hanging infusion bottles outside, then the piston 21 slides upwards, and the position of the piston 21 relative to the first shading layer is still kept after sliding. During infusion, liquid medicine in the honeycomb duct 3 firstly enters the buffer tube 1, and after bubbles in the liquid medicine enter the buffer tube 1, gas finally converges at the lower end of the observation barrel 2 because the density of the gas is smaller than that of the liquid medicine. At the infusion in-process, close behind the velocity of flow regulator, upwards stimulate piston 21 and can reduce the pressure in the buffer tube 1, inhale the buffer tube 1 with the liquid medicine in the infusion bottle, if upwards stimulate the back with piston 21, observe a 2 upper ends of section of thick bamboo and still do not appear liquid medicine, then prove that the liquid medicine in the infusion bottle flows to the greatest extent, tear the third light shield layer this moment and can follow the observation window and observe the liquid medicine volume in the buffer tube 1, the convenient in time discovers that liquid medicine flows to the greatest extent, in time stops the infusion.
Example 2
On the basis of embodiment 1, as shown in fig. 2 and fig. 3, the fixing rod 5 in this embodiment includes a hanging rod 53 and a limiting rod 54, the hanging rod 53 is located above the limiting rod 54, the hanger 52 and the connecting block 51 are respectively located at the upper end of the hanging rod 53 and the lower end of the limiting rod 54, the sleeve 6 is integrally formed at the bottom of the hanging rod 53, and the upper end of the limiting rod 54 is located in the sleeve 6. A spring 55 is arranged between the hanging rod body 53 and the limiting rod body 54, annular limiting rings are integrally formed at the bottom of the hanging rod body 53 and the top of the limiting rod body 54, two ends of the spring 55 are hook-shaped, and two ends of the spring 55 are connected with the limiting rings respectively. The bottom of the hanging rod 53 is integrally formed with a support rod 56, the bottom of the support rod 56 is mounted with a pressure sensor 57 opposite to the limit rod 54, and the pressure sensor 57 in this embodiment is a LLB130 force sensor. In the case of a small quantity of liquid medicine inside buffer tube 1, limit rod 54 is pressed against pressure sensor 57 by spring 55. Pressure sensor 57 has connected gradually controller and alarm, and the controller, the return circuit connection at pressure sensor and alarm place has the switch, and is specific, the switch adopts normally open switch in this embodiment, closed switch when the infusion makes the controller, pressure sensor and alarm be in the on-state, controller and alarm all splice on hanging the body of rod 53, and is specific, the alarm is bee calling organ, and when pressure sensor 57 detected pressure, can send the signal of telecommunication to the controller, make bee calling organ send suggestion sound at last.
When the injector in this embodiment is used, after the medical staff connects the connection block 51 with the buffer tube 1, the lower end of the flow guide tube 3 and the upper end of the injection tube 4 are respectively fixed on the two suspension rod bodies 53 through the medical adhesive tape. At this time, more liquid medicine enters the buffer tube 1, the weight borne by the limiting rod body 54 is increased, the spring 55 is stretched, and the limiting rod body 54 slides downwards relative to the hanging rod body 53 and cannot contact with the pressure sensor 57.
After the liquid medicine in the infusion bottle flows out, the liquid medicine in the buffer tube 1 is gradually reduced, the weight borne by the limiting rod body 54 is gradually reduced, and finally the limiting rod body 54 is pressed on the pressure sensor 57, so that the buzzer sends out prompt sound, and the medical staff or the nursing staff for caring patients can be prompted to stop infusion in time.
The above description is only an example of the present invention, and the general knowledge of the known specific technical solutions and/or characteristics and the like in the solutions is not described herein too much. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. A light-shielding injection device, characterized in that: the device comprises a hanging unit and an injection unit, wherein the injection unit comprises a bottle stopper puncture outfit, a buffer tube, a flow guide tube, an injection tube and an injection needle, the buffer tube is horizontal, an observation tube is fixed at the top of the buffer tube, the bottom of the observation tube is communicated with the buffer tube, a black piston is connected in the observation tube in a sliding manner, a first light shielding layer is arranged at the lower end of the observation tube, and the upper end of the observation tube is transparent; the guide pipe and the injection pipe are both communicated with the buffer pipe, the inner diameter of the narrowest part of the buffer pipe is larger than the inner diameters of the guide pipe and the injection pipe, one end of the guide pipe, which is far away from the buffer pipe, is fixed with the bottle stopper puncture outfit, and one end of the injection pipe, which is far away from the buffer pipe, is fixed with the injection needle; the buffer tube, the flow guide tube and the injection tube are all provided with a second shading layer; the suspension unit comprises at least two fixing rods, the fixing rods are detachably connected with the buffer tube, and lifting appliances are arranged at the upper ends of the fixing rods.
2. A light-shielding injection device according to claim 1, wherein: the second light-shielding layer is black.
3. A light-shielding injection device according to claim 2, wherein: be equipped with transparent observation window and the third light shield layer relative with the observation window on the buffer tube, the third light shield layer is used for sheltering from the observation window to can dismantle with the buffer tube and be connected.
4. A light-shielding injection device according to claim 3, wherein: the top of the buffer tube is cone-barrel shaped.
5. A light-shielding injection device according to claim 4, wherein: the bottom of the buffer tube is provided with a diversion trench, and the communication position of the injection tube and the buffer tube is positioned at the bottom of the diversion trench.
6. A light-shielding injection device according to claim 1, wherein: the fixed rod comprises a hanging rod body connected with the hanger and a limiting rod body connected with the buffer tube, a spring is arranged between the hanging rod body and the limiting rod body, and two ends of the spring are respectively fixed on the hanging rod body and the limiting rod body; hang the bottom integrated into one piece of the body of rod and have the bracing piece, the pressure sensor relative with the spacing body of rod is installed to the bottom of bracing piece, and under the less condition of liquid medicine in the buffer tube, the spacing body of rod is pressed down on pressure sensor under the effect of spring.
7. A light-shielding injection device according to claim 6, wherein: the pressure sensor is connected with an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011502042.7A CN112657008B (en) | 2020-12-17 | 2020-12-17 | Light-resistant injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011502042.7A CN112657008B (en) | 2020-12-17 | 2020-12-17 | Light-resistant injection device |
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| Publication Number | Publication Date |
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| CN112657008A CN112657008A (en) | 2021-04-16 |
| CN112657008B true CN112657008B (en) | 2022-06-24 |
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| CN202011502042.7A Active CN112657008B (en) | 2020-12-17 | 2020-12-17 | Light-resistant injection device |
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| JP2005334113A (en) * | 2004-05-25 | 2005-12-08 | Meteku:Kk | Multi-purpose infusion administration apparatus |
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