CN101746732B - Intravenous injection type oxygen generator with uniform speed and using method thereof - Google Patents
Intravenous injection type oxygen generator with uniform speed and using method thereof Download PDFInfo
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- CN101746732B CN101746732B CN200910217996A CN200910217996A CN101746732B CN 101746732 B CN101746732 B CN 101746732B CN 200910217996 A CN200910217996 A CN 200910217996A CN 200910217996 A CN200910217996 A CN 200910217996A CN 101746732 B CN101746732 B CN 101746732B
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Abstract
The invention belongs to the field of a medical appliance and relates to an intravenous injection type oxygen generator with uniform medical speed. The intravenous injection type oxygen generator comprises a bottle body, a rotary cap cover, a filter and an intravenous injection connecting pipe. An oxygen generating agent sodium percarbonate and a preprocessed catalyst manganese dioxide are proportioned and placed at the lower part of the oxygen generator, clean water in different quantity is placed at the upper part of the oxygen generator, and the middle part is separated by a polyethylene film. The rotary cap cover is arranged at the uppermost end of the bottle body, a linkage type pointed plastic rod is arranged on the rotary cap cover, and solid phase can be in complete contact with liquid phase by the linkage type pointed plastic rod; then, oxygen is uniformly released and is directly used for intravenous injection after being filtered by the filter. With small volume, convenient carrying, good safety and high reliability, the oxygen generator can be widely used for oxygen therapy and first aid of critical diseases such as cardiovascular and cerebrovascular ischemic diseases, acute trauma bleeding, burn shock, respiratory tract obstruction and the like.
Description
Technical field
The present invention relates to intravenous injection formula uniform medical speed oxygen generator and using method thereof, particularly a kind of chemical legal system oxygen intravenous injection formula uniform medical speed oxygen generator and using method thereof.
Background technology
As far back as the 1830's, U.S. physiologist Hall has just been created the mask oxygen inhalation method, and nose conduit after this, hyperbaric oxygen chamber and respirator mechanical ventilation all are through the respiratory tract oxygen supply.Yet, for particular patients ' such as acute lung injury, traumatic hydropneumothoraxs, conventional respiratory tract oxygen supply poor effect.Therefore, seek new oxygen supply passage, become the focus of medical circle research.In recent years, relevant research both at home and abroad mainly concentrates on aspects such as no matrix haemproteins, genetically engineered artificial blood, liposome parcel circulating protein solution, perfluorocarbon solution, but because its complex process costs an arm and a leg, still difficulty is widely used in clinical so far.
Clinical proof, vein oxygen therapy is a kind of effectively oxygen supply treatment means, through blood circulation; Immediately with the dissolved oxygen mode to the histocyte oxygen supply, it is aerobic metabolism that histocyte is reversed by weary oxygen metabolism, alleviates metabolic acidosis; Expanding blood volume increases effective blood circulation simultaneously.This treat-ment has certain preventive and therapeutic effect to the organ ischemic injuries, and has the effect of certain anti-infective and enhance immunity power.Be mainly used in the treatment and the first aid of critical illnesses such as cardiovascular and cerebrovascular ischemic disorders, acute injury are hemorrhage, burn shock, respiratory tract obstruction clinically.
In the prior art, multiple intravenous injection formula medical oxygen device is arranged, but all have shortcomings such as complicated operation, oxygen burst size instability, and cost is high.The patent No. is the intravenous injection formula medical oxygen cylinder that the Chinese invention patent of CN200420102747.x provides a kind of composition optimizes; Source of oxygen mainly still is a medical oxygen cylinder; Though improved the characteristic of the uniform and stable property of air output, its complex structure is not easy to carry; But also can not cause its limited use according to the quantitative release of oxygen of user's demand.
Summary of the invention
In order to overcome the deficiency of prior art, the invention provides intravenous injection formula uniform medical speed oxygen generator and using method thereof.
Being constructed as follows of intravenous injection formula uniform medical speed oxygen generator provided by the invention: the airtight bonded polyethylene film 11 in the centre of the inside of bottle shaped article 10 makes bottle shaped article 10 be divided into top 9 and bottom 12 two portions;
In the middle of the bottom of bottle shaped article 10 a circular charging opening is arranged, can install the oxygen producing agent and the catalyzer of solid phase through this charging opening additional;
The central authorities of the base 14 of circular sheet shape have one with the protruding columniform sealing plug 13 of this base 14 all-in-one-pieces, sealing plug 13 can place in the circular charging opening and with the lower seal of bottle shaped article 10;
A bottleneck 7 is arranged at the top of bottle shaped article 10, can be pack into the top of bottle shaped article 10 of water through bottleneck 7;
Bottleneck 7 in bottle 10 upper ends is installed hub cap 6; It is the thorn awl 8 of cone for the right cylinder bottom that there is a top in the central authorities of circular hub cap 6; Be fixedly connected through gusset 5 in the middle of this thorn awl 8 and the hub cap 6, and place the bottleneck 7 interior inside that also can be deep into the top of bottle shaped article 10; This space beyond hub cap 6 intermediary gussets 5 is as oxygen channel;
Hub cap 6 has screw thread to be connected bottle 10 with the thread fit of bottleneck; Rotation hub cap 6 makes its screw thread rotation to 3/4 place; Hub cap 6 is bottle 10 upper ends, 9 sealings; Rotation hub cap 6 makes its screw thread rotation on earth, and thorn awl 8 punctures polyvinylidene film 11, makes water fully contact with catalyzer and carry out chemical reaction with oxygen producing agent and produces oxygen;
There is a protruding air outlet 4 on hub cap 6 tops; This protruding air outlet 4 is connected through flexible rubber hose is airtight with the inlet of the strainer 3 of circular embedded filtering net; One section flexible pipe of outlet 2 airtight connections of strainer 3; Hose end is connected to a transfusion device plastic spike 1, and plastic spike 1 is inserted in the intravenous some drop bottle bottle stopper and with a drop bottle and communicated; Start oxygen generator; Even release of oxygen; Oxygen arrives protruding air outlet 4, hub cap 6 tops through the interstitial channels beyond the hub cap 6 intermediary gussets 5; Strainer 3 through embedded filtering net filters, and then through being dissolved in the liquid medicine injection in the drop bottle in the transfusion device plastic spike 1 inlet point drop bottle; Venous patient drop medicine just can be realized intravenous injection oxygen therapy simultaneously.
Introduce the usage of intravenous injection formula uniform medical speed oxygen generator of the present invention below, its step and condition are following:
(1) pack into oxygen producing agent and catalyzer:, install the oxygen producing agent and the catalyzer of solid phase additional through this charging opening through circular charging opening in the middle of the bottom of bottle shaped article 10; Then, place the columniform sealing plug 13 of the convexity of the base of circular sheet shape 14 central authorities in the circular charging opening and with the bottle shaped article lower seal;
(2) water of packing into: take off bottle shaped article 10 vertical pivoting lids 6, the bottleneck on the top through bottle shaped article 10 is pack into the top of bottle shaped article 10 of water;
(3) reinforced proportioning: according to the calculating of the chemical formula of the chemical reaction that produces oxygen, and experimental verification repeatedly:
Producing the needed raw-material amount of 100mL oxygen is: the quality 2.8～3.0g of oxygen producing agent, the quality 0.38～0.40g of catalyzer, the volume 6-8mL of water;
Producing the needed raw-material amount of 250mL oxygen is: the quality 7.0～7.5g of oxygen producing agent, the quality 0.53～0.55g of catalyzer, the volume 15-17mL of water;
Producing the needed raw-material amount of 500mL oxygen is: the quality 14～15g of oxygen producing agent, the quality 0.9～1.1g of catalyzer, the volume 32-34mL of water;
Described oxygen producing agent is a SPC-D, and catalyzer is the sheet manganese dioxide composites, the component Manganse Dioxide of this manganese dioxide composites: TKK 021: the quality proportioning of starch is 1: 2: 2;
The preparation method of described manganese dioxide composites is: in the 250mL there-necked flask of being furnished with whisking appliance, TM, add the ethanol of the 95wt.% of 100mL, take by weighing 20g Manganse Dioxide, 40g TKK 021 and 40g starch; Evenly stir 20min, be warming up to 50 ℃ then, boil off solvent; And constantly be stirred to and do not have the alcohol flavor; Freezing immediately curing, 40 ℃ of following vacuum-dryings further remove and desolvate, after putting into refrigerator and cooled and hiding; Pulverizing is also crossed 20 mesh, processes the sheet Manganse Dioxide composite catalyst of different size then;
(4) preparation oxygen: the circular rotatable cap 6 drive thorn awls 8 of rotation move down and puncture polyvinylidene film 11, make water fully contact with catalyzer and carry out chemical reaction with oxygen producing agent and produce oxygen;
(5) filter oxygen: the oxygen of generation filters through gauze strainer 3, and the oxygen after the filtration reaches the medical oxygen standard;
(6) control oxygen flow: the catalyzer that the present invention uses is the Manganse Dioxide composite catalyst, according to the medicament slow release principle, processes the preparation method with above-mentioned (3) the sheet Manganse Dioxide composite catalyst that is similar to the medicament slow release thing; Confirm its dissolution rate in the aqueous solution through experiment then; Experimental technique is: take by weighing Manganse Dioxide composite catalyst 0.38～0.40g, 0.53～0.55g and 0.9～1.1g respectively, put into 6-8mL, 15-17mL and the 32-34mL aqueous solution then respectively, then from beginning to dissolve timing; Every at a distance from ten minutes; Take out the Manganse Dioxide composite catalyst, the weighing catalyst weight is poor, calculates the dissolution rate of Manganse Dioxide composite catalyst then in this way; Through experimental verification repeatedly, sheet manganese dioxide-catalyst dissolution rate is 6.5 * 10
-3～6.7 * 10
-3G/min, the dissolution rate that the massfraction (20wt.%) that accounts for sheet catalyst according to Manganse Dioxide obtains catalyst component Manganse Dioxide in the catalyzer is 1.30 * 10
-3～1.34 * 10
-3G/min;
According to the calculating of the chemical formula of Manganse Dioxide catalysis SPC-D chemical reaction, and experimental verification repeatedly: 7.6 * 10
-2～8.0 * 10
-2The g Manganse Dioxide catalysis SPC-D 100mL that can in 60min, produce oxygen, oxygen generation speed is 2.3～2.8mL/min; 10.6 * 10
-2～11.0 * 10
-2The g Manganse Dioxide catalysis SPC-D 250mL that can in 120min, produce oxygen, oxygen generation speed is 2.8～3.3mL/min; 18 * 10
-2～22 * 10
-2The g Manganse Dioxide catalysis SPC-D 500mL that can in 150min, produce oxygen, oxygen generation speed is 3.3～3.8mL/min;
(7) vein oxygen therapy: plastic spike 1 is inserted in the intravenous some drop bottle bottle stopper and with a drop bottle and is communicated; Start oxygen generator; Oxygen will evenly discharge; Oxygen is through protruding air outlet 4, hub cap 6 tops, filters through the strainer 3 of embedded filtering net, and then through in the transfusion device plastic spike 1 inlet point drop bottle and be dissolved in the liquid medicine injection in the drop bottle; Venous patient drop medicine just can be realized intravenous injection oxygen therapy simultaneously.
Beneficial effect: the present invention places the oxygen generator bottom with a kind of oxygen producing agent SPC-D and preprocessed catalyst manganese dioxide according to proportioning; The clear water of different amounts is placed on top; Need not reconfigure, loaded down with trivial details preparation work such as connection, when the intravenous injection oxygen supply needs, can open from line operate; Oxygen supply rapidly, simple and easy to use.This practical multifunctional oxygen gas generator volume is little, is easy to carry, and is safe and reliable, can be widely used in the oxygen therapy treatment and the first aid of critical illnesses such as cardiovascular and cerebrovascular ischemic disorders, acute injury are hemorrhage, burn shock, respiratory tract obstruction.A kind of intravenous injection formula medical oxygen producer that uses simple, safe, uniform and stable and quantitative release of oxygen is provided.
Description of drawings
Fig. 1 constitutes diagrammatic cross-section for intravenous injection formula medical oxygen producer.
Embodiment
Embodiment 1: as shown in Figure 1, being constructed as follows of intravenous injection formula uniform medical speed oxygen generator provided by the invention: the airtight bonded polyethylene film 11 in the centre of the inside of bottle shaped article 10 makes bottle shaped article 10 be divided into top 9 and bottom 12 two portions;
In the middle of the bottom of bottle shaped article 10 a circular charging opening is arranged, can install the oxygen producing agent and the catalyzer of solid phase through this charging opening additional;
The central authorities of the base 14 of circular sheet shape have one with the protruding columniform sealing plug 13 of this base 14 all-in-one-pieces, sealing plug 13 can place in the circular charging opening and with the lower seal of bottle shaped article 10;
A bottleneck 7 is arranged at the top of bottle shaped article 10, can be pack into the top of bottle shaped article 10 of water through bottleneck 7;
Bottleneck 7 in bottle 10 upper ends is installed hub cap 6; It is the thorn awl 8 of cone for the right cylinder bottom that there is a top in the central authorities of circular hub cap 6; Be fixedly connected through gusset 5 in the middle of this thorn awl 8 and the hub cap 6, and place the bottleneck 7 interior inside that also can be deep into the top of bottle shaped article 10; This space beyond hub cap 6 intermediary gussets 5 is as oxygen channel;
Hub cap 6 has screw thread to be connected bottle 10 with the thread fit of bottleneck; Rotation hub cap 6 makes its screw thread rotation to 3/4 place; Hub cap 6 is bottle 10 upper ends, 9 sealings; Rotation hub cap 6 makes its screw thread rotation on earth, and thorn awl 8 punctures polyvinylidene film 11, makes water fully contact with catalyzer and carry out chemical reaction with oxygen producing agent and produces oxygen;
There is a protruding air outlet 4 on hub cap 6 tops; This protruding air outlet 4 is connected through flexible rubber hose is airtight with the inlet of the strainer 3 of circular embedded filtering net; One section flexible pipe of outlet 2 airtight connections of strainer 3; Hose end is connected to a transfusion device plastic spike 1, and plastic spike 1 is inserted in the intravenous some drop bottle bottle stopper and with a drop bottle and communicated; Start oxygen generator; Even release of oxygen; Oxygen arrives protruding air outlet 4, hub cap 6 tops through the interstitial channels beyond the hub cap 6 intermediary gussets 5; Strainer 3 through embedded filtering net filters, and then through being dissolved in the liquid medicine injection in the drop bottle in the transfusion device plastic spike 1 inlet point drop bottle; Venous patient drop medicine just can be realized intravenous injection oxygen therapy simultaneously.
Introduce the usage of intravenous injection formula uniform medical speed oxygen generator of the present invention below, its step and condition are following:
(1) pack into oxygen producing agent and catalyzer:, install the oxygen producing agent and the catalyzer of solid phase additional through this charging opening through circular charging opening in the middle of the bottom of bottle shaped article 10; Then, place the columniform sealing plug 13 of the convexity of the base of circular sheet shape 14 central authorities in the circular charging opening and with the bottle shaped article lower seal;
(2) water of packing into: take off bottle shaped article 10 vertical pivoting lids 6, the bottleneck on the top through bottle shaped article 10 is pack into the top of bottle shaped article 10 of water;
(3) reinforced proportioning: according to the calculating of the chemical formula of the chemical reaction that produces oxygen, and experimental verification repeatedly:
Producing the needed raw-material amount of 100mL oxygen is: the quality 2.8～3.0g of oxygen producing agent, the quality 0.38～0.40g of catalyzer, the volume 6-8mL of water;
Producing the needed raw-material amount of 250mL oxygen is: the quality 7.0～7.5g of oxygen producing agent, the quality 0.53～0.55g of catalyzer, the volume 15-17mL of water;
Producing the needed raw-material amount of 500mL oxygen is: the quality 14～15g of oxygen producing agent, the quality 0.9～1.1g of catalyzer, the volume 32-34mL of water;
Described oxygen producing agent is a SPC-D, and catalyzer is the sheet manganese dioxide composites, the component Manganse Dioxide of this manganese dioxide composites: TKK 021: the quality proportioning of starch is 1: 2: 2;
The preparation method of described manganese dioxide composites is: in the 250mL there-necked flask of being furnished with whisking appliance, TM, add the ethanol of the 95wt.% of 100mL, take by weighing 20g Manganse Dioxide, 40g TKK 021 and 40g starch; Evenly stir 20min, be warming up to 50 ℃ then, boil off solvent; And constantly be stirred to and do not have the alcohol flavor; Freezing immediately curing, 40 ℃ of following vacuum-dryings further remove and desolvate, after putting into refrigerator and cooled and hiding; Pulverizing is also crossed 20 mesh, processes the sheet Manganse Dioxide composite catalyst of different size then.
(4) preparation oxygen: the circular rotatable cap 6 drive thorn awls 8 of rotation move down and puncture polyvinylidene film 11, make water fully contact with catalyzer and carry out chemical reaction with oxygen producing agent and produce oxygen;
(5) filter oxygen: the oxygen of generation filters through gauze strainer 3, and the oxygen after the filtration reaches the medical oxygen standard;
(6) control oxygen flow: the catalyzer that the present invention uses is the Manganse Dioxide composite catalyst, according to the medicament slow release principle, processes the preparation method with above-mentioned (3) the sheet Manganse Dioxide composite catalyst that is similar to the medicament slow release thing; Confirm its dissolution rate in the aqueous solution through experiment then; Experimental technique is: take by weighing Manganse Dioxide composite catalyst 0.38～0.40g, 0.53～0.55g and 0.9～1.1g respectively, put into 6-8mL, 15-17mL and the 32-34mL aqueous solution then respectively, then from beginning to dissolve timing; Every at a distance from ten minutes; Take out the Manganse Dioxide composite catalyst, the weighing catalyst weight is poor, calculates the dissolution rate of Manganse Dioxide composite catalyst then in this way; Through experimental verification repeatedly, sheet manganese dioxide-catalyst dissolution rate is 6.5 * 10
-3～6.7 * 10
-3G/min, the dissolution rate that the massfraction (20wt.%) that accounts for sheet catalyst according to Manganse Dioxide obtains catalyst component Manganse Dioxide in the catalyzer is 1.30 * 10
-3～1.34 * 10
-3G/min;
According to the calculating of the chemical formula of Manganse Dioxide catalysis SPC-D chemical reaction, and experimental verification repeatedly: 7.6 * 10
-2～8.0 * 10
-2The g Manganse Dioxide catalysis SPC-D 100mL that can in 60min, produce oxygen, oxygen generation speed is 2.3～2.8mL/min; 10.6 * 10
-2～11.0 * 10
-2The g Manganse Dioxide catalysis SPC-D 250mL that can in 120min, produce oxygen, oxygen generation speed is 2.8～3.3mL/min; 18 * 10
-2～22 * 10
-2The g Manganse Dioxide catalysis SPC-D 500mL that can in 150min, produce oxygen, oxygen generation speed is 3.3～3.8mL/min;
(7) vein oxygen therapy: plastic spike 1 is inserted in the intravenous some drop bottle bottle stopper and with a drop bottle and is communicated; Start oxygen generator; Oxygen will evenly discharge; Oxygen is through protruding air outlet 4, hub cap 6 tops, filters through the strainer 3 of embedded filtering net, and then through in the transfusion device plastic spike 1 inlet point drop bottle and be dissolved in the liquid medicine injection in the drop bottle; Venous patient drop medicine just can be realized intravenous injection oxygen therapy simultaneously.
Embodiment 2:
Produce the producer embodiment of 100mL oxygen; Intravenous injection formula uniform medical speed oxygen generator top adds the 7mL aqueous solution, and the bottom adds 2.9g SPC-D powder and 0.39g Manganse Dioxide composite catalyst on chip, in a tank, is inverted a band scale test tube; Guarantee that water is full of whole test tube; Then this intravenous injection formula medical oxygen producer directly is inserted into this band scale and is inverted in the test tube, utilize drainage to calculate the oxygen generating capacity, rotation hub cap 6 makes its screw thread rotation to 3/4 place; Hub cap 6 is bottle 10 upper ends, 9 sealings; Rotation hub cap 6 makes its screw thread rotation on earth, and thorn awl 8 punctures polyvinylidene film 11, makes water fully contact with catalyzer and carry out chemical reaction with oxygen producing agent and produces oxygen; Pick up counting simultaneously, each 10min reads the generating capacity of oxygen, till oxygen is not discharging.Result such as table 1.
Embodiment 3:
Produce the producer embodiment of 250mL oxygen, add the 16mL aqueous solution to intravenous injection formula medical oxygen producer top, the bottom adds 5.8g SPC-D powder and 0.54g Manganse Dioxide composite catalyst on chip.
Remaining condition is with embodiment 2.Result such as table 1.
Embodiment 4:
Produce the producer embodiment of 500mL oxygen, add the 33mL cleaning water to intravenous injection formula medical oxygen producer top, the bottom adds 13.3g SPC-D powder and 1.0g Manganse Dioxide composite catalyst on chip.
Remaining condition is with embodiment 2.Result such as table 1.
Embodiment 5:
This example is the explanation about the process of sheet Manganse Dioxide composite catalyst preparation.
In the 250mL there-necked flask of being furnished with whisking appliance, TM, add the ethanol of the 95wt.% of 100mL, take by weighing 20g Manganse Dioxide, 40g TKK 021 and 40g starch, evenly stir 20min; Be warming up to 50 ℃ then; Boil off solvent, and constantly be stirred to nothing alcohol flavor, freezing immediately curing; 40 ℃ of vacuum-dryings further remove desolvates; After putting into the refrigerator and cooled Tibetan, pulverize and also cross 20 mesh, process the sheet Manganse Dioxide composite catalysts of different sizes then according to the requirement of sheet manganese dioxide-catalyst.
Table 1 is the explanation about 100mL, 250mL and three kinds of specification intravenous injections of 500mL medical oxygen burst size.
The oxygen burst size of table 1 embodiment
Claims (1)
1. intravenous injection formula uniform medical speed oxygen generator is characterized in that being constructed as follows: the airtight bonded polyethylene film in the centre of the inside of bottle shaped article (10) (11) makes bottle shaped article (10) be divided into top (9) and bottom (12) two portions;
In the middle of the bottom of bottle shaped article (10) a circular charging opening is arranged, install the oxygen producing agent and the catalyzer of solid phase through this charging opening additional;
The central authorities of the base of circular sheet shape (14) have one with the protruding columniform sealing plug (13) of this base (14) all-in-one-piece, sealing plug (13) places in the circular charging opening and with the lower seal of bottle shaped article (10);
A bottleneck (7) is arranged at the top of bottle shaped article (10), through bottleneck (7) pack into the top of bottle shaped article (10) of water;
Bottleneck (7) in bottle shaped article (10) upper end is installed hub cap (6); It is the thorn awl (8) of cone for the right cylinder bottom that there is a top in the central authorities of circular hub cap (6); Be fixedly connected through gusset (5) in the middle of this thorn awl (8) and the hub cap (6), and place bottleneck (7) interior and be deep into the inside on the top of bottle shaped article (10); This hub cap (6) intermediary gusset (5) space in addition is as oxygen channel;
Hub cap (6) has screw thread to be connected bottle shaped article (10) with the thread fit of bottleneck; Rotation hub cap (6) makes its screw thread rotation to 3/4 place; Hub cap (6) is bottle shaped article (10) upper end (9) sealing; Rotation hub cap (6) makes its screw thread rotation on earth, and thorn awl (8) punctures polyvinylidene film (11), makes water fully contact with catalyzer and carry out chemical reaction with oxygen producing agent and produces oxygen;
There is a protruding air outlet (4) on hub cap (6) top; This protruding air outlet (4) is connected through flexible rubber hose is airtight with the inlet of the strainer (3) of circular embedded filtering net; One section flexible pipe of the airtight connection of outlet (2) of strainer (3); Hose end is connected to a transfusion device plastic spike (1), and plastic spike (1) is inserted in the intravenous some drop bottle bottle stopper and with a drop bottle and communicated.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102530877A (en) * | 2010-12-16 | 2012-07-04 | 吴舒克 | Portable emergency rapid oxygen making device |
| CN102824677B (en) * | 2012-09-19 | 2015-03-11 | 河北联合大学 | Ring-pull emergency oxygen production bag |
| CN105129736A (en) * | 2015-08-12 | 2015-12-09 | 安徽理工大学 | Portable oxygen production apparatus and method thereof |
| US20180369619A1 (en) * | 2015-12-22 | 2018-12-27 | Purecare Dental Ltd | Oxygen-generating capsule |
| CN111686003A (en) * | 2020-07-15 | 2020-09-22 | 长春工业大学 | Intelligent medicine box capable of automatically discharging medicine on time |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2775455Y (en) * | 2004-12-20 | 2006-04-26 | 洪思德 | Intravenous medical oxygen bottle structure |
| US20070025890A1 (en) * | 2004-06-15 | 2007-02-01 | Joshi Ashok V | Apparatus and method for administering a therapeutic agent into tissue |
| CN200963377Y (en) * | 2006-09-06 | 2007-10-24 | 耿为民 | Oxygen-making up pressure venous transfusion device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070025890A1 (en) * | 2004-06-15 | 2007-02-01 | Joshi Ashok V | Apparatus and method for administering a therapeutic agent into tissue |
| CN2775455Y (en) * | 2004-12-20 | 2006-04-26 | 洪思德 | Intravenous medical oxygen bottle structure |
| CN200963377Y (en) * | 2006-09-06 | 2007-10-24 | 耿为民 | Oxygen-making up pressure venous transfusion device |
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