CN204698615U - Novel skin dilator - Google Patents

Abstract

A novel skin dilator for cosmetic plastic surgery, thickeies the base of dilator, and aqueduct outer end is connected with external topping up jug; Base thickeies and expansionary force can be made surely to expand outwardly to reduce the compressing to bottom body tissue, is also beneficial to the use of soft abdominal part, also can expands the skin soft tissue of 15-20% more; Aqueduct is also shaped with concavo-convex drainage trough built in the side, base thickeied in pipe week, protects from infection with the hematocele hydrops of drawing intracavity; Topping up jug and aqueduct are separately manufactured, make a call to a tunnel with probe good for aqueduct lead body external-adjuster length is connected topping up jug again after burying expansion capsule, after topping up jug transformation, avoid damage to body tissue when burying injection kettle, and ensure that water filling is convenient and deviation and water filling be not bitterly.

Description

Novel skin dilator

Art

This utility model belongs to medical health appliance, particularly a kind for the treatment of tool of plastic and aesthetic surgery.

Background technology

Shaping and beauty medical industry is that 21st century is in China and even world's majority state one of industry having development potentiality most, along with the improvement of people's living standard, the requirement of people to U.S. also improves thereupon, in plastic and aesthetic surgery, such as: the nose of some organs disappearance reproduces, and Postauricular flap and partial breast reproduce, the abnormal pigmentary deposit on the skin nevus of some body surfaces, hemangioma, tatoo or wound, the cicatrix of burnt degree, treat after the tumor resection of body surface, some serious skin ulcer or defects, exposed bone, the reparation of decubital ulcer or head lack reparation sent out etc., all can with the skin soft tissue repairing and treating expanded, again because " skin soft tissue expanding out with dilator is in color, quality, hair structure and normal structure match, it is desirable repair materials, and the flap majority that expansion produces retains sensory nerve, little for district's secondary deformity, therefore there is the unrivaled advantage of conventional cosmetic methods of surgical.Be a kind of completely newly, safely and effectively, can plastic surgery's new technique, the new method of extensive use, solve the semicentennial difficult problem of puzzlement plastic surgeon ".Therefore " skin tissue expander (skin soft tissue expan der; SSTE) and skin soft-tissue expansion (Skin and soft tissue ex-pansion, SSSTE) are called as " revolutionary character great in twentieth century plastic surgery development history is created and achievement that is epoch-making, milestone ".

Skin dilator is by U.S. plastic surgeon RadoVan1976 and biomedical engineer Schulte cooperation research and development, nineteen eighty-two introduces domestic by Chinese Shanghai nine institute Zhang Disheng engineering academician again, Xijing hospital of The Fourth Military Medical University becomes civilized Shandong, Guo Shuzhong, the professor such as Ai Yufeng and Chen Mingxiang technician have developed again corresponding product, but introduce in domestic later use procedure from skin dilator since nineteen eighty-two, because it is in manufacture and structural defect, as: because of the expansion capsule of old-fashioned dilator, aqueduct, connect together with injection kettle etc., in use they are all buried cause a totally enclosed chamber in vivo, the hematocele hydrops of such intracavity just can not be discharged and define the condition of infection, because expansion capsule periphery is the uniform cyst wall of one deck, pressure when expanded carries out to periphery simultaneously, position at the bottom of capsule will come to a point and diminishes and cause capsule lower body to organize pressurized to damage, longer aqueduct be easy in vivo give a discount or pressurized and can not water guide make expansion failure, the topping up jug of many ribs is easy to damaged tissue when burying in vivo, and the very inconvenient and easy deviation of water filling and Principle of Pain etc. when burying in vivo, its various complication occurred: " be about 10-40% according to domestic and foreign literature, reach as high as 48% ".

This utility model is: manufacture a kind of novel skin dilator to replace old-fashioned dilator used in plastic and aesthetic surgery.Because old-fashioned dilator when performing the operation, the structure that the expansion capsule of dilator, aqueduct, injection kettle etc. are chained together all is buried in vivo, so just cause the infection that intracavity hematocele hydrops can not be discharged, aqueduct pressurized can not be expanded, and particularly transforms because of the damage that causes when the injection kettle of many seamed edges buries in vivo and many complication such as water filling deviation and pain.

The rationale of novel skin dilator manufacture is: all manufactured materialss still with manufacture over former more than 30 years without repelling, without teratogenesis and can autoclaved medical silica-gel and rustless steel or mould goods manufacture, wherein the factor of most critical is: expand pressure in capsule and aqueduct after charging because can pressure raise the problem that make the topping up jug on aqueduct and obturator deviate from?

Because the pressure after expansion capsule water filling is direct effect to skin soft tissue expansion and effect, so, domestic and international many experts have more research to the pressure that expansion capsule produces, now summary is as follows: " dilator is to skin soft tissue calculation of pressure; without the intracapsular pressure of external force when deducting external identical Capacity Expansion device correspondence volume percent with the body inner dilator intracapsular pressure recorded clinically, be dilator to skin soft tissue pressure ".That is: dilator can be deducted identical capacity to the pressure of skin soft tissue by the intracapsular pressure recorded in clinical upper body under, the external intracapsular pressure without recording under external pressure obtains.

The Xu Kunming of Guangzhou Zhongshan City Renmin Hospital etc. exist with the Li Qingfeng professor of institute of Shanghai Communications University nine cerebral sursery, conclusion in " experimentation of skin tissue expander pressure " is: " it is basically identical that different capabilities rectangle expander body expands the rear intracapsular pressure Changing Pattern without external force outward; namely start to occur pressure when water filling total amount reaches about 100% dilator capacity; during 100-250%, pressure increases very fast, and after 250%, the forward and backward pressure of water filling becomes a platform substantially.Research such as its Changing Pattern and Liu Chunli etc. is basically identical, " " it is different that different capabilities dilator maintains stress level after water filling total amount reaches 250% dilator capacity. "

It is tested in partes corporis humani position: " in 17 dilators; after water filling, buccal dilator is 55.6mmHg (1mmHg=0.133kpa) to skin soft tissue maximum pressure; trunk is 64.0mmHg; frontal temporal part is 72.7mmHg; extremity are 84.2mmHg, and head is 122.5mmHg " of the various capacity of 50-400 milliliter, and above result shows at the pressure of head augmentation scalp the highest, Face and cheek is minimum, and dilator maximum pressure in vivo (head) is 122.5mmHg; " for the control of dilator pressure, pertinent literature report is had nothing in common with each other.Wang Wei (Shanghai Jiu Yuan) and Shandong become civilized (four Jun great Xijing hospitals) etc. all advocate in process of expansion, intracapsular pressure is no more than 5.3kpa or 40mmHg, in order to avoid the dilator intracapsular pressure of skin expansion generation poor arterial inflow .Pictila etc. and dermal blood flow correlational study find, intracapsular pressure becomes negative correlation with dermal blood flow; Dilator is inserted after in patient body, when former intrinsic pressure reach about 125mmHg time, it is 0 that laser-Doppler blood flow detection instrument records its dermal blood flow, and intracapsular pressure spontaneity declines afterwards, and blood flow also recovers gradually.Zhao Qiming etc. are when carrying out water filling expansion with buffer pressure-reducing device to patient body inner dilator, find that expansion (within 15d) intracapsular pressure in early stage maintains 2.5--4.5kpa, later stage (after 15d) intracapsular pressure maintains 4.6-8.0kpa, patient all can stand, and laser-Doppler blood flow detection instrument detects blood fortune well. " that is: theoretically; expansion capsule can not be greater than the perfusion pressure of blood capillary to the pressure of skin expansion; otherwise; if when in capsule, maximum pressure is greater than 8kpa or 125mmHg, skin will be downright bad because of hypoxic-ischemic.

In sum: demonstrating dilator maximum pressure in vivo can not be greater than 125mmHg or 8.0kpa; Again because the expansion capsule of dilator and aqueduct communicate, according to " linker " principle, maximum pressure in expansion capsule is also the maximum pressure of aqueduct simultaneously. that is: if the topping up jug that this novel skin dilator improves is greater than this numeral with (obturator) resistance in aqueduct, so, the topping up jug of novel skin dilator also would not be discharged (comprising obturator) from aqueduct, meanwhile, this is also one of successful key factor of this patent.

In view of the above fact, I am according to the skin dilator of various models (15--800ml) used on the market at present, its catheter outer diameter is 3.0mm to the maximum, internal diameter is 1.5mm, through experiment: we are by funnel shaped for this product topping up jug afterbody, making external diameter is 2.5mm, internal diameter is that the directional light sliding surface pipe of 1.5mm inserts aqueduct 10mm, just can release by the power of the bar shaped box ergometer 600gf (6N-newton) of (MADE IN CHINA) 10N, as inserted 10mm with the pipe with parallel thread, the power of 700gf (7N) is then used to release, when inserting the pipe of 15mm with parallel thread, just can need release by the power of 800gF (8N) (with the friction area contacted and, fastening force size is relevant), when being 900 mL of saline with the dilator water filling 3 times of 300 milliliters, (under having the pressure of water in capsule) just can be released by the power of 650gf (6.5N).Again injector is placed in pipe and be not also discharged for 11 days, and do not have the water in capsule ooze out from pipe week and obtain successfully.For this reason, the reliability and feasibility of this patent product is demonstrated from practice.

Prove theoretically again: the pressure measured by this experimental result is: the power of 650gf or 6.5N (newton), is again according to the formula of liquid pressure (P), pressure (F) and area (S) relation: maximum permissible value because of dilator is 4.6-8.0kpa or 125mmHg, peak 125mmHg is selected to calculate, again because of 1mmHg=133.32pa=0.13332kpa, so 125mmHg × 0.13332kpa=16.665kpa, namely the maximum permissible value of dilator is 16.665kpa; Again according to the pressure (6.5N) that this experiment produces, first obtain its pressure number with above formula.That is: this diameter of testing that topping up jug used inserts aqueduct is 2.5mm, in substitution formula obtain its area S=towering × R2 divided by the pressure number that the power of namely this experiment 6.5N (newton) produces.Obtain the ratio with dilator maximum permissible value again, that is: 1320kpa ÷ 16.665kpa=79.21 (doubly).That is, this patent product, the maximum difference multiple that the pressure that the novel skin dilator topping up jug after namely improving produces and dilator allow is (greatly) 79.21 (doubly).So, also its credibility in use of sufficient proof and feasibility again theoretically.

Discuss topping up jug plug insert aqueduct carry out expanding be feasible demonstration after, discuss the obturator of injector intracavity again, due to it with original, have more than 30 years applicating histories, can water filling and the prolonged injection kettle material do not leaked is manufactured repeatedly, and thicken increasing, the intracavity being embedded in funnel-form topping up jug tightly, and intracavity also has the reinforcing of parallel screw intersection to make it can not discharge after charging, then it is reinforced further to do a lip sample adduction loop resistance gear in bell mouth.In addition, because of the material manufacture that obturator is with having certain contractibility energy, when have elastic obturator insert topping up jug chamber after again can swell in case obturator is deviate from, but certain space (about 1/3rd) must be left in order to avoid affect waterflood path, last reinforcing with the screw-cap of a top seal again makes obturator not discharge, the more important thing is, far away the closing of aqueduct can also be kept aseptic condition (accompanying drawing 8) by the cap nut of this top closure.

Summary of the invention

This utility model is: make a kind of novel skin dilator, thickeied on a base of expansion capsule, aqueduct is arranged on the side, base of thickening and pipe week is shaped with drainage trough, and aqueduct outer end is connected with external topping up jug, topping up jug head has water filling cavity, and afterbody has the interface be connected with aqueduct; Topping up jug cavity is built with silicone filler body, and cavity top can arrange protective cap; Base of expansion capsule is thickeied, in order to when water filling is expanded, expansionary force is outwards disperseed and reduces its compression to body tissue various at the bottom of capsule; Aqueduct built in thicken base first, and pipe week be shaped with longitudinal concavo-convex drainage trough, so that the hematocele hydrops of drawing in expansion cavity is avoided infection; To the transformation of topping up jug be: topping up jug is made funnel-form, the column silica gel obturator for water filling and sealing can be filled in funneling cavities, inside and outside funneling cavities, Side has screw thread, can add a cover female protective cap outside cavity, and the interface of tail of cavity body is communicated with aqueduct; Or topping up jug is made as funnel-form, and it be spherical, afterbody is the cavity body of tubulose that colloidal silica makes head, and the tubulose of colloidal silica afterbody is tightly placed in outside topping up jug funnels, and the interface of tail of cavity body is communicated with aqueduct.

Novel skin dilator has three parts: namely expand capsule, aqueduct and topping up jug (comprising obturator), specific practice is:

1, the base of expansion capsule is thickeied: because the structure around conventional expansion device is the same with resistance, so when after water filling to the expansionary force of periphery each side too, its outside effective expansion and downward harmful compressor unit bulk damage are also deposited, after a base of expansion capsule is thickeied, when water filling is expanded, one side expansionary force (or the pressure to tissue various under capsule) thickeied will weaken and by pressure to external diffusion, thus increase the dynamics of effectively expansion, and decrease to the damage of tissue various under capsule as: the pressure of children's's skull falls into the damage with other vitals, be more suitable for the abdominal part soft in the bottom expansion (or claim harmful expansion) that neutralizes and become outside effective expansion.Through my experiment: the skin dilator thickening a times with 100 milliliters of bases, when water filling 100% to 300%, with the pressure that the bar shaped box ergometer of " MADE IN CHINA " 10 N records be: every water filling increases 50-100 milliliter, thickening than the pressure in vitro do not thickeied relatively few 50-100gf (or 0.5-1N) Newton force.Also be proved to be: " can expand the skin soft tissue of 15-20% " more simultaneously.

2, to the improvement of aqueduct be: the nearly capsule end of aqueduct and the base of thickening are manufactured on side, and when burying dilator, dilator and aqueduct junction are placed on the lowest part of expansion cavity, with the principle of " The natural flow of water always proceeds from a higher level to a lower one ", the hematocele hydrops in expansion cavity is flowed out from bottom.The periphery of aqueduct is made longitudinally concavo-convex drainage trough simultaneously and more easily drain the hematocele hydrops of intracavity to reduce the chance infected, can also rinse to the water filling injection of capsule week from groove; The far-end of aqueduct and original injection kettle are separately made, so that after burying expansion capsule with probe make a call to a tunnel aqueduct moved under water suitably apart from rear, far-end drawn connect topping up jug water filling again, aqueduct is embedded in intracavity before not only avoiding easily to give a discount or pressurized makes aqueduct can not water filling expansion and make the phenomenon of operative failure, also avoid the extra wound to body tissue when originally burying injection kettle; Again because aqueduct draws to connect topping up jug again after subcutaneous certain distance of moving under water, outlet is made to be in certain closed state, thus decrease present partial clinical doctor by aqueduct and injection kettle expose caused pollution risk completely, make the dual function that conduit has drain and avoids infection.

3, in order to reinforce the Connected degree of aqueduct and topping up jug, the far-end of aqueduct suitably being thickeied and inner face is made with the corresponding screw-like of topping up jug afterbody with the fastening force of both increases.

4, heavier because of original injection kettle complex manufacturing technology, prevent the sheet metal stung at the bottom of kettle from easily damaging syringe needle in the injection kettle of old-fashioned dilator in addition, particularly embedding in vivo time major injury to body tissue, simultaneously also easy water filling deviation and sting water clock wall and make injection kettle destroy (being namely also be like this in vitro) etc. and be replaced by its topping up jug with novel expanded device.

5, the shape of topping up jug is made funnel type (or T-shaped); its structure is: distalmost end with can repeatedly water filling and sealing silica gel entity; (resin or metal) higher with the internal orifice hardness of aqueduct junction is made a loudspeaker head-like structure and is placed in topping up jug body to protect water filling safety (accompanying drawing 7; Fig. 8); inside is the cavity of flowing water; wherein little head (afterbody) outside is parallel thread in order to inserting fastness when being connected with the far-end of aqueduct, and its enlarged head is spherical or the arbitrary shape that connects together with aqueduct.

The another kind of structure of topping up jug is: the head of the major part of topping up jug, i.e. funnel, inside and outside all have screw, inner chamber is parallel screw (accompanying drawing 4 to Fig. 6), in order to staggered with obturator (Fig. 3) fixing (obturator should hand over card obturator not deviate to reinforce slightly larger than intracavity footpath), at accent place system one lip sample adduction ring (accompanying drawing 4,12), suitable constriction accent makes to have after elastic silicone filler body is included in deviate from again.

6, because of the obturator in topping up jug head hollow space be with original having plasticity, the silicon that can repeatedly inject again makes roundlet steamed bun shape (accompanying drawing 3) as glue, just can not deviate from after obturator is included in, but volume can only duty chamber 2/3rds in order to avoid affect water filling.

7, in order to aqueduct aseptic or reduce infection chance between water filling expansionary phase, and make the screw-cap of a top seal at the head of funnel, the far-end of aqueduct can be closed with anti-pollution by that add a cover outside this cavity, that have internal coiling protective cap after charging.

Beneficial effect

One, because the base of the expansion capsule of dilator thickeies, it is made to decrease capsule undertissue as skeleton or other vitals when expanding, the particularly skull of children's or the compressing of Cervical Vessels and tremulous pulse hole, when being also beneficial to the soft abdominal expansion in bottom, invalid expansion is become effective expansion, the skin soft tissue also can expanding 15-20% utilizes more simultaneously.

Two, because aqueduct and topping up jug separately make, be conducive to first aqueduct being drawn in expansion cavity connecting novel topping up jug water filling again, while wound to various tissue when also reducing or avoid the injection kettle of embedding original many seamed edges.

Three, because aqueduct far-end is without topping up jug, with regard to easy, aqueduct is drawn after subcutaneous certain distance of moving under water, thus avoid aqueduct and give a discount in vivo or the chance of pressurized, make outlet be in closed state and aqueduct and injection kettle all be stayed external unlike during present partial clinical doctor embedding dilator and add postoperative infection chance.

Four, the hematocele hydrops be beneficial to because aqueduct being made irregular drainage trough in blister cavities flows out, thus decrease the chance of infection, also the character (be blood then prove have in capsule hemorrhage) of observable drain, to give treatment in time, also can utilize groove to water filling or medicine etc. in blister cavities.

Five, to the improvement of topping up jug be: the topping up jug manufacture of novel skin dilator is simple; easy to use; decrease after particularly topping up jug and aqueduct separately being made and bury injection kettle to the wound of body; injection kettle is stayed the convenient not deviation of external water filling and non-pain etc., topping up jug outside is shaped with screw-cap to protect water filling safety.

Accompanying drawing illustrates and further illustrates this utility model below in conjunction with drawings and Examples.

Fig. 1 is the Facad structure schematic diagram of this utility model skin dilator.1 is expansion capsule, and 2 is bottom surfaces that expansion capsule thickeies, and 3 is aqueducts, and 4 is afterbodys of topping up jug, and 5 is topping up jugs.

Fig. 2 is the aqueduct cross section of dilator, and 6,7 is emboss pits of aqueduct, and 8 is overflow pipes of aqueduct

Fig. 3 is the obturator of topping up jug, and 10 is teeth portion of obturator

Fig. 4 is the funnels of topping up jug, 11 is external spiral stricture of vaginas (can be used for adding a cover screw-cap) of topping up jug funnels, 12 is that the lip of infundibulum water inlet charges into ring (playing the effect stopping that obturator is deviate from), 13 is the parallel screws in funnel chamber, (it can increase adhesion with the irregular use of the teeth portion of obturator), 14 is afterbody parallel threads of funnels, plays fixation after inserting aqueduct.15 be infundibular body afterbody water inlet,

Fig. 5 is a kind of overall picture of topping up jug; 16 is spiral protective caps of topping up jug; 9 is the obturators (accounting for intracavity 2/3 position) be embedded in topping up jug funnel chamber; 10 is teeth portion of obturator; 14 is parallel threads of funnels afterbody; 15 is water inlets of infundibular body afterbody, and 17 is waterflood paths of topping up jug.

Fig. 6 is the sectional view (the same Fig. 5 of structure) of Fig. 5: 16 is spiral protective caps of topping up jug; 9 is the obturators (accounting for intracavity 2/3 position) be embedded in topping up jug funnel chamber; 10 is teeth portion of obturator; 13 is the parallel threads (it can increase adhesion with the irregular use of the teeth portion of obturator) in funnel chamber; 14 is parallel threads of funnels afterbody; 15 is water inlets of infundibular body afterbody, and 17 is waterflood paths of topping up jug.

Fig. 7 is smooth type topping up jug: 18 is can the head of water filling repeatedly, and 17 is waterflood paths of topping up jug, and 19 is water filling demarcation line of topping up jug, and 14 is parallel threads of funnel body afterbody, and 15 is water inlets of infundibular body afterbody,

Fig. 8 is the sectional view of Fig. 7: 18 is can the head at water filling position repeatedly, and 17 is waterflood paths of topping up jug.19 is water filling demarcation line of topping up jug, and 14 is funnels afterbodys, and 15 is water inlets of infundibular body afterbody.

Detailed description of the invention

Novel skin dilator forms by expanding capsule, aqueduct, topping up jug, obturator and spiral protective cap, it is with without repelling, making without teratogenesis, avirulent medical silica-gel, by base thickening (as Fig. 1) of expansion capsule to reduce its compressing to body tissue at the bottom of capsule; Aqueduct is waterflood path, because of the topping up jug of old-fashioned dilator and aqueduct connect together all bury in vivo and easily pressurized etc. make it can not water guide, therefore both are separately made, after burying expansion capsule, topping up jug water filling will be connected outside aqueduct lead body and have drainage trough (accompanying drawing 1,2) to make it have water filling unobstructed and can the dual function of drain in pipe week; Topping up jug is made funnel-form, head is that spherical, body afterbody is tubulose and the cavity that tightly overlaps with silica gel of periphery, insert the aqueduct water filling expansion outside lead body.For the topping up jug having silicone filler body (Fig. 3) to make; in its head, Side has plain weave; porch has lipping ring not released (accompanying drawing 4,5,6) by the pressure of water in pipe to protect obturator; head outer, has spiral lamination, can make and add a cover female protective cap (Fig. 5,6).The novel skin dilator of different size can be selected in use according to the position of required reparation or organ, the profile (accompanying drawing 1) of dilator is marked at operative site, after sterilization, under anaesthetic, by the otch of the suitable size of pathological changes lateral incision, peel off a lacuna successively, dilator is put wherein, and the junction of expansion capsule and aqueduct is placed on lowest part, make a call to a tunnel with probe again and aqueduct far-end is drawn the length also adjusting aqueduct as required, finally the topping up jug afterbody of dilator is inserted far-end (accompanying drawing 1) the gradation water filling of aqueduct, finally cover protective cap (accompanying drawing 1) again or directly use the water filling of smooth type topping up jug, so far whole process of operation is completed.

In a word, novel skin dilator is used in plastic and aesthetic surgery, the regeneration product of old-fashioned skin dilator, which overcome old-fashioned dilator shortcomings in use, reduce or avoid many complication and benefit these patients, make it handy in art by reform, postoperative perfection, make to be called as that " twentieth century plastic surgery is epoch-making, the achievement of milestone " further develop, for 21st century cosmetic plastic surgery repair deficiency or the plastic and aesthetic surgery such as Organ Reconstruction create and establish new product and condition, thus make it more be practically applicable to clinical and play larger effect.

Claims (5)

1. the novel skin dilator for plastic and aesthetic surgery; be made up of expansion capsule, aqueduct and topping up jug; it is characterized in that: a base of expansion capsule is thickeied; aqueduct is arranged on the side, base of thickening and pipe week is shaped with drainage trough; aqueduct outer end is connected with external topping up jug, and topping up jug head has water filling cavity, and afterbody has the interface be connected with aqueduct; topping up jug cavity is built with silicone filler body, and cavity top can arrange protective cap.

2. novel skin dilator according to claim 1, is characterized in that: base of expansion capsule thickeied, and in order to when water filling is expanded, is outwards disperseed by expansionary force and reduces its compression to body tissue various at the bottom of capsule.

3. novel skin dilator according to claim 1, is characterized in that: aqueduct built in the side, base thickeied, and pipe week is shaped with longitudinal concavo-convex drainage trough, so that the hematocele hydrops of drawing in expansion cavity is avoided infection.

4. novel skin dilator according to claim 1; it is characterized in that: topping up jug is funnel-form; the column silica gel obturator for water filling and sealing can be filled in funneling cavities; in funneling cavities, there is screw thread in outside; can add a cover female protective cap outside cavity, the interface of tail of cavity body is communicated with aqueduct.

5. novel skin dilator according to claim 1, it is characterized in that: topping up jug is funnel-form, colloidal silica makes that head is spherical (or arbitrary shape), afterbody is the cavity body of tubulose, the tubulose of colloidal silica afterbody is tightly placed in outside topping up jug funnels, and the interface of tail of cavity body is communicated with aqueduct.