CN2440529Y - Automatic tissue dilator - Google Patents
Automatic tissue dilator Download PDFInfo
- Publication number
- CN2440529Y CN2440529Y CN 00266811 CN00266811U CN2440529Y CN 2440529 Y CN2440529 Y CN 2440529Y CN 00266811 CN00266811 CN 00266811 CN 00266811 U CN00266811 U CN 00266811U CN 2440529 Y CN2440529 Y CN 2440529Y
- Authority
- CN
- China
- Prior art keywords
- dilator
- dilatation
- tissue
- automatic
- tissue dilator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 206010011732 Cyst Diseases 0.000 claims abstract description 12
- 208000031513 cyst Diseases 0.000 claims abstract description 12
- 239000012528 membrane Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000002357 osmotic agent Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 7
- 201000010099 disease Diseases 0.000 abstract 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract 2
- 239000013589 supplement Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 1
- 210000001519 tissue Anatomy 0.000 description 21
- 230000000694 effects Effects 0.000 description 5
- 230000003204 osmotic effect Effects 0.000 description 4
- 230000008520 organization Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000008713 feedback mechanism Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 230000008467 tissue growth Effects 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model discloses an automatic dilatation tissue dilator. The automatic dilatation tissue dilator is composed of an injection zone, a cyst wall, and a semipermeable membrane which is connected with the cyst wall in a watertight mode. The automatic dilatation tissue dilator only can cause water to pass through the semipermeable membrane to substitute for part of impermeable cyst wall of the automatic dilatation tissue dilator, and high impermeable liquid is used for substituting for equal impermeable salt water to fill the cyst cavity of the automatic dilatation tissue dilator. Tissue liquid around the automatic dilatation tissue dilator continuously passes through the semi-permeable membrane to enter the cyst cavity of the automatic dilatation tissue dilator in the process of tissue dilatation, and the continuous dilatation of the automatic dilatation tissue dilator is kept. The automatic dilatation tissue dilator can enhance tissue dilatation efficiency, and can reduce pain. Injection supplement times are reduced, and complicating disease possibly caused by injection supplement or other complicating disease generated by transplanting delay is reduced.
Description
This utility model relates to a kind of medical apparatus and instruments, and especially a kind of tissue expander of expansion automatically that is used for is characterized in can automatic continuously expanding after in its implanted body.
At present, after known conventional organization dilator implants, need regularly to inject liquid in dilator, make the dilator tissue expander that it is surperficial to enough areas, the newly-increased area that this expansion produces is used to transplant.Studies show that in the past: injecting amount of liquid when too much in the dilator capsule, the surface cuts complication of tearing and have an intense pain etc. might take place in overtension; And inject amount of liquid when very few, and tension force is too little, and dilator does not have tangible tissue expander effect; The maximum of tension force in a short time after each injection the, the effect of expansion be pain preferably but also, and gradually little with backward pull, pain relief, expansion effect also reduce; A small amount of repeatedly the injection can make tension force fluctuation in a more suitable interval, obtains better expansion effect, pain is less and can obtains the required newly-increased area of organizing within a short period of time; But have when injecting liquid at every turn certain expense and danger (as infect, the dilator cyst wall breaks or leakage etc.).Common selection is to inject weekly once, and each the injection with the danger and the obvious pain that do not cause tongue tear exceeded.Obtain certain newly-increased area of organizing, frequency injection is few more, and each amount of injecting is big more, and the blanking time of injection is long more, and the total time of expansion is long more.Patient in many urgent need skin-grafting (or mucosa) can not wait for the long time, because the waiting time is long more, complication such as infection are many more, and are also serious more.The patient who chooses date for operation can wait for the long period, but influential to the bodily form always in expansionary phase, and is also unsuitable long.
Be exactly the purpose of this utility model overcomes the shortcoming of existing tissue expander, always provide a kind of and can automatic continuously expand, tension force remains at that expansion is most effective again in the suitableeer interval of pain, the time of expanding also reaches the shortest simultaneously, and reduce the automatic expansion tissue expander of injection number of times, pain and complication significantly.
The purpose of this utility model is achieved in that dilator implants after (and injecting high osmotic agent), in the body under the pressure of moisture high osmotic agent and the generation of body fluid osmotic pressure gradient in dilator constantly in the body in semipermeable membrane enters dilator, the dilator prolonged expansion, surface texture tension force rises, tissue growth quickens, and area continues to enlarge.On the other hand, tissue tension also has the negative feedback regulating action to the speed that moisture in the body enters dilator: equal in the dilator osmotic pressure and organize the difference of osmotic pressure to deduct the dilator internal pressure because cause moisture in the body to enter pressure in the dilator, so the dilator internal pressure is big more, moisture enters in the dilator few more.This is a very valuable negative feedback mechanism.Amount and/or hyperosmotic solution concentration and volume in conjunction with suitable semipermeable membrane area, high osmotic agent, this negative feedback can be avoided the too fast expansion of dilator well and make tissue tension too high, thereby tissue tension is remained in its suitableeest interval, guaranteed quick, the efficient and safety of tissue expander.The injection zone that this automatic filling tissue expander possesses simultaneously can also be provided at possibility of injecting or extracting out the part hyperosmotic solution in the tissue expander process, for the safety of use with efficiently increased further assurance.
Owing to adopt such scheme, can alleviate operator tensity, accelerate the operation progress, reduce the complication that prolonged operations produces, particularly can reduce in the operation amphiblestroid accidental injury, guarantee the safety of operation, improve the success rate of operation.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is conventional tissue expander's structural representation;
Fig. 2 is the structural representation of this utility model embodiment.
Among the figure, 1. dilator cyst wall; 2. dilator blister cavities; 3. the injection zone that links to each other with blister cavities (this injection zone cyst wall is thicker usually, and high resilience, automatically the closed injection mouth); 4. the high osmotic agent in the dilator blister cavities; 5. with the banded semipermeable membrane of dilator cyst wall watertight.
After the implanted subcutaneous and otch of shown in Figure 2 automatic expansion tissue expander heals substantially, inject hypertonic salines to the injection zone 3 of dilator with syringe; Or when in the dilator blister cavities, high osmotic agent 4 being arranged, injecting normal saline in injection zone 3.To this time, operating in when using the conventional organization dilator or expanding tissue expander automatically of operator is basic the same.Different is will regularly replenish injection when using the conventional organization dilator in dilator; And when using the tissue expander of expansion automatically, because pressing, the liquid infiltration in the dilator blister cavities 2 is higher than the outer tissue fluid of dilator, tissue fluid is under the effect of osmotic pressure, constantly enter dilator blister cavities 3 and make it to continue expansion by the part cyst wall that is made of semipermeable membrane 5, operator does not need regularly to inject in dilator and only needs to observe.When the pressure in observing automatic expansion tissue expander is less than normal, can to the higher high sepage of intracapsular injection concentration the rate of expansion of automatic tissue expander be accelerated by injection zone 2; When observed automatic expansion tissue expander internal pressure is excessive, also can extract part dilator CF bodies out by injection zone 2.
Claims (2)
1. automatic expansion tissue expander, by injection zone 2, waterproof cyst wall 1 and with it the banded semipermeable membrane 5 of watertight forms, it is characterized in that: the fluid-tight dilator cyst wall 1 of described automatic expansion tissue expander's usefulness semipermeable membrane 5 instead of part.
2. automatic expansion according to claim 1 tissue expander, it is characterized in that: the dilator blister cavities in process of expansion is filled by high sepage; The high osmotic agent of putting in the dilator manufacture process 4 is at dilator blister cavities 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266811 CN2440529Y (en) | 2000-12-19 | 2000-12-19 | Automatic tissue dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266811 CN2440529Y (en) | 2000-12-19 | 2000-12-19 | Automatic tissue dilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2440529Y true CN2440529Y (en) | 2001-08-01 |
Family
ID=33620804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00266811 Expired - Fee Related CN2440529Y (en) | 2000-12-19 | 2000-12-19 | Automatic tissue dilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2440529Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105473099A (en) * | 2013-08-16 | 2016-04-06 | 欧特思有限公司 | Coated tissue expander |
-
2000
- 2000-12-19 CN CN 00266811 patent/CN2440529Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105473099A (en) * | 2013-08-16 | 2016-04-06 | 欧特思有限公司 | Coated tissue expander |
| US9907937B2 (en) | 2013-08-16 | 2018-03-06 | Oxtex Limited | Coated tissue expander |
| CN105473099B (en) * | 2013-08-16 | 2018-04-17 | 欧特思有限公司 | Coat tissue expander |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |