Background technique
Oxygen therapy is more and more received and be applied in Wound healing and bone regeneration by clinic.With wound healing theory
Development, oxygen have obtained more and more confirmations for the positive influence of wound healing.Oxygen has weight for the healing of wound
It acts on.Studies have shown that oxygen can promote collage synthesis, fine cell Proliferation and new vascular generation in tissue regeneration processes, energy
Enhance granulocyte phagocytic function and promote granulation formation and Wound Contraction etc..Oxygen in air is not since partial pressure of oxygen is high, and one
The wound handled a bit often has covering, these all affect going deep into for oxygen, therefore air oxygen acts on less wound.
In recent years, enough research and clinical test show that topical oxygen therapy is the effective of raising wound healing
Method, it is some to be ground with response type oxygen release function, low cost and the material of oxygen being convenient for carrying or system
Study carefully exploitation, as CN104117057A " it is a kind of load enzyme the hydrogel composition with oxygen release function and its formation hydrogel "
A kind of disclosed oxygen release gel.
All oxygen therapies, including partial oxygen supply or hemoglobin are reinforced, can be to wound proximal end oxygen
Benefit in horizontal understanding.The partial pressure of oxygen of normal skin is usually 40mmHg, acute skin wound can drop to 30mmHg hereinafter,
And the partial pressure of oxygen of chronic wounds is down to 5mmHg.The partial pressure of oxygen near wound, i.e. transcutaneous oxygen pressure measurement (TCOM) are measured, is mesh
Before be considered measure wound oxygen content best Substitute Indexes.This measurement greatly depends on Multiple factors, including regional flow
Perfusion, thermotonus, the percutaneous diffusion of oxygen etc..
In oxygen therapy, oxygen rate of release and the partial pressure of oxygen for controlling oxygen releasing device are also very crucial.If release
Oxygen is too fast, can generate free radicals damaging cells.If oxygen release is excessively slow, enough energy cannot be provided to maintain cell to deposit
It is living.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of gels to discharge oxygen detection device, can test oxygen release
The oxygen rate of release and partial pressure of oxygen of gel.
Used technical solution to solve above-mentioned technical problem: a kind of gel discharges oxygen detection device, including opening
It container and can cover and the film of the oral area of closed open-top receptacle, open-top receptacle is equipped at least two discrepancy being in communication with the outside
Mouthful, open-top receptacle is equipped with the oxygen measurement device of at least one detectable oxygen concentration or partial pressure of oxygen.
As an improvement, film is polyethylene film or polyvinyl chloride film.
As an improvement, oxygen measurement device includes the first oxygen measurement device and the second oxygen measurement device, the first oxygen
Measuring device can be placed in measurand, and the second oxygen measurement device can be placed in the inner cavity of open-top receptacle.
As an improvement, oxygen measurement device is oxygen sensor probes, oxygen sensor probes and external computer connect
It connects.
As an improvement, entrance include the first entrance and the second entrance, the first entrance be located at container side wall or
Bottom, the second entrance are located at the bottom of container.
As an improvement, the first entrance and the second entrance are hose connection, it is arranged with hose on hose connection, on hose
Equipped with can closed hose clip.
The utility model has the advantages that the utility model proposes gel release oxygen detection device can be quantitatively evaluated gel oxygen release
Rate and partial pressure of oxygen can exclude influence of the oxygen to test result in tainer air by being passed through buffer solution and gas,
The detectable oxygen concentration of first oxygen measurement device or partial pressure of oxygen situation of change can calculate oxygen release gel by data analysis
Oxygen rate of release.
Raw material used in embodiment unless otherwise specified, can be obtained from routine business approach.
Referring to figs. 1 to 4, a kind of gel discharges oxygen detection device, including open-top receptacle 1.It is solidifying for the ease of fixed oxygen release
Glue 8 and sealing open-top receptacle 1, open-top receptacle 1 are equipped with and can cover and the film 2 of the oral area of closed open-top receptacle 1.This implementation
Open-top receptacle 1 is rectangular glass guide channel in example.The shape of open-top receptacle 1 can be it is round, rectangular, cylindrical or other have one
The shape of constant volume and intensity.Open-top receptacle 1 can also be other chemical property stabilization and the material with some strength, including
But be not limited to polycarbonate, polyester, polyethylene, polypropylene, polyvinyl chloride, polyformaldehyde, polyurethane, polyamide etc..
In order to improve the leakproofness of open-top receptacle 1, the film 2 in the present embodiment is polyethylene film.Film 2 needs to have
Have air-locked property, should also be it is soft, so as to paste or bind open-top receptacle 1 oral area realize sealing.Film 2
Material can also be polyvinyl chloride film or other are airtight, with some strength and herein in test environment, chemical property is stablized
Other membrane materials.
Open-top receptacle 1 is passed in and out for the ease of buffer solution and gas, open-top receptacle 1 is equipped with the first entrance 3 and second
Entrance 4, the first entrance 3 and the second entrance 4 are located at the bottom of open-top receptacle 1 in the present embodiment.Second entrance 4 is located at
The bottom of open-top receptacle 1 can facilitate buffer solution to be discharged, and the first entrance 3 can also be provided on the side wall of open-top receptacle 1,
A possibility that buffer solution is flowed out from the first entrance 3 can be reduced.
For the ease of forming confined space between open-top receptacle 1 and film 2, the first entrance 3 and the second entrance 4 are
Hose connection, is arranged with hose on hose connection, hose be equipped with can closed hose clip 5.
When needing to be passed through or be discharged buffer solution or gas, clip 5 can be taken off.First entrance 3 and the second entrance 4
It can also be cone seal plug or screw lid.
For the ease of the oxygen concentration or partial pressure of oxygen in monitoring oxygen release gel 8 and confined space, film 2 is equipped with and can penetrate
The the first oxygen measurement device 6 and the second oxygen measurement device 7 of film 2.First oxygen measurement device 6 can be placed to oxygen release gel
In 8, the second oxygen measurement device 7 can be placed in confined space.First oxygen measurement device 6 and the second oxygen measurement device 7
It can be oxygen sensor probes, be mainly used for measuring the concentration or partial pressure of oxygen of oxygen gas in environment, according to measurement range
Difference and working life length, there are many model and product, such as German compact optical fiber formula oxygen measurement set FireSting
O2。
For the ease of the oxygen concentration or partial pressure of oxygen in real-time monitoring oxygen release gel 8 and confined space, the first oxygen measurement
Device 6 and the second oxygen measurement device 7 are equipped with USB interface, can be connect by USB line with external computer.Computer can
Record oxygen release gel 8 and oxygen concentration or partial pressure of oxygen in confined space in real time can calculate oxygen release gel 8 by data analysis
Oxygen rate of release.
The test process of the present embodiment is related to PBS buffer solution, PBS buffer solution (phosphate buffer
Saline) it is phosphate buffered saline solution, generally as solvent, plays dissolution protection reagent.It is in biochemical research
A kind of the most widely used buffer, main component Na2HPO4、KH2PO4, NaCl and KCl, due to Na2HPO4And KH2PO4
They have second level dissociation, and the pH value range of buffering is very wide.
A kind of gel release oxygen test method based on above-mentioned detection device, comprising the following steps:
(1) oxygen release gel 8 is fixed on film 2;
(2) film 2 is penetrated with the first oxygen measurement device 6 and be inserted into its probe in oxygen release gel 8, with the second oxygen
Measuring device 7 penetrates film 2 and oxygen release gel 8, and the probe of the second oxygen measurement device 7 is made to be pierced by oxygen release gel 8;
(3) by the covering of above-mentioned film 2, simultaneously adhesive seal is fixed on oxygen release gel 8 spacious in the oral area of open-top receptacle 1
The oral area of mouth container 1, is presented to the probe of the second oxygen measurement device 7 in the inner cavity of open-top receptacle 1;
(4) overturning open-top receptacle 1 and makes the first entrance 3 and the second entrance 4 upward, removes the first entrance 3 and the
Clip 5 on two entrances 4 injects PBS buffer solution into the first entrance 3, until the air in open-top receptacle 1 is complete
Discharge;
(5) it overturns open-top receptacle 1 and makes the second entrance 4 downward, inject nitrogen into the first entrance 3, make in container
PBS buffer solution be discharged from the second entrance 4, until the PBS buffer solution in open-top receptacle 1 is fully drained, use folder
Son 5 closes the first entrance 3 and the second entrance 4, makes to keep air-tight state in open-top receptacle 1;
(6) oxygen concentration or partial pressure of oxygen of the first oxygen test device and the second oxygen test device are recorded by computer
Situation of change.
(7) test period of the first oxygen measurement device 6 and the second oxygen measurement device 7 is set as 20min, when the first oxygen
When the sequential growth rate of oxygen concentration or partial pressure of oxygen that gas measuring device 6 and the second oxygen measurement device 7 measure is not more than 1%,
Test terminates.
The utility model proposes gel release oxygen test method and detection device the oxygen of gel can be quantitatively evaluated and release
Rate and partial pressure of oxygen are put, the oxygen in tainer air can be excluded to the shadow of test result by being passed through buffer solution and gas
It rings, the detectable oxygen concentration of the first oxygen measurement device 6 or partial pressure of oxygen situation of change, oxygen release can be calculated by data analysis
The oxygen rate of release of gel 8.
Oxygen release gel 8 in this test can be gel rubber material perhaps gel rubber material composition gel rubber material or gel
Material compositions are a kind of gel rubber materials that can discharge oxygen, can be embedding or adsorption of oxygen (such as perfluocarbon and blood red
Protein carrier) oxygen carrying type gel or the raw oxygen type gel of chemistry (be placed in oxygen generating agent in such as dressing system -- mainly peroxide
With inorganic peroxide salt such as percarbonic acid, calper calcium peroxide, peromag or catalyst, chemistry occurs using hydrogen peroxide and water
One of oxygen is resolved into reaction).This test method and detection device have the wider scope of application.
Buffer solution in order to exclude influence of the oxygen in the air in open-top receptacle 1 to test result, in step (5)
For PBS (phosphate buffer saline) buffer solution, the gas in step (5) is nitrogen.PBS buffer solution may be used also
It is replaced with the buffer solution for using other chemical property under this test condition stable, nitrogen can also use other in this test
Under the conditions of the stable inert gas (such as helium, neon or argon gas) of chemical property replace.According to the oxygen release speed of oxygen release gel 8
Difference, the test period of settable different the first oxygen measurement device 6 and the second oxygen measurement device 7.Oxygen release speed is faster,
Test period can be set to shorter, set reasonable test period, it is ensured that test result accurate and accelerating as far as possible test into
Degree.
The following are an experimental results of the present embodiment:
This experiment is prepared for poly- (2- acrylamido-methyl propane sulfonic acid sodium salt) (PAMPSNa) water-setting by chemical crosslinking
Glue and PAMPSNa- sodium alginate composite hydrogel, after changing composite hydrogel load catalase and hydrogen peroxide, system energy
The release oxygen of continuous and effective.The measurement for being carried out oxygen release to the gel rubber system using the method for the present embodiment, is obtained a result
As shown in Figure 5.The test period of this experiment is set as 20min, show that system reaches flat in 300min or so from experimental result
Weighing apparatus, in order to which further identity system has reached balance, this test acquires several groups of data again after 300min.
The experimental data of the present embodiment:
Time (minute) | 20 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | 180 |
PO2(mmHg) | 18 | 42 | 78 | 105 | 123 | 138 | 147 | 150 | 152 |
Time (minute) | 220 | 240 | 260 | 300 | 340 | 400 | 450 | 500 | 550 |
PO2(mmHg) | 154 | 155 | 157 | 159 | 159 | 159 | 159 | 159 | 159 |
The embodiments of the present invention is explained in detail above in conjunction with attached drawing, but the utility model is not limited to
State embodiment, technical field those of ordinary skill within the scope of knowledge, can also do not depart from it is practical
Various changes can be made under the premise of novel objective.