人工義乳的細節

人工義乳的細節

作者：蔡豐州醫師

<<翻印拷貝, 法律必究>>

Brief history of implant developments
義乳的三大考量:
(1) Durability
(2) ‘Low Bleed’
(3) Resistance to capsular contracture

Hx:
1541 - 1956 many alloplastic materials used to replicate natural tissues, 包括Rubber, Paraffin, Polyethylene, Polyvinyl, Teflon, Glass
, etc
1956 - 1960 Polyurethane sponge implants - The Ivalon implant

1960 - 1963 Silicone implants (Cronin design) developed by Dow Corning

1963 - 1965 First Generation Silicone implants
Cronin ‘seam type’ implants with Dacron fixation (Dow Corning)

1965 - 1968 Second Generation Silicone implants
Cronin ‘inverted seam’ contoured implants (Dow Corning)

1968 - 1970 Third Generation Silicone implants
Seamless ‘teardrop’ implants with Dacron fixation (Dow Corning)
Silicone inflatable ‘seam type’ implants (R Klein)

1970 - 1972 Fourth Generation Silicone implants
Seamless round implants with no fixation (Heyer Schulte)
Silicone inflatable ‘seamless’ implants (R Klein)

1972 - 1975 Fifth Generation Silicone implants
Seamless implants in round, tear drop and oval shapes (Dow Corning) enabling a new and more responsive ‘feel’
Silicone inflatable implants with ‘Jenny’ type valve (Heyer Schulte)

1975 -  Sixth Generation Silicone implants
Totally symmetrical implant shape (McGhan)

1980s  Key product advances designed to address capsular contracture
Trilaminate Barrier Shell technology to restrict gel permeation
Textured implant surface to disorganise collagen fibril establishment

1990s  A wider choice of options for both patient and surgeon
Non-silicone filler materials, including Soya Oil, PVP, Hydrogel etc
High-cohesive silicone gels capable of maintaining a specific shape

絨毛面義乳表面顯微掃描圖: 

同一家公司INAMED 

義乳Sizing Chart (LP):

Nagor:
saline-filled, gel-filled implants
Code    Min Volume     Max Volume                Base (mm)      Projection (mm)
120      120                145                       90                   24
140      140                165                       95                   25
160      160                185                       100                 26
180      180                205                       105                 27
200      200                225                       110                 28
220      220                245                       115                 29
240      240                265                       120                 30
270      270                320                       125                 31
300      300                350                       135                 33
340      340                390                       140                 34
380      380                430                       145                 35
420      420                470                       150                 36
460      460                510                       155                 37
500      500                550                       160                 38

McGhan:

saline-filled round, anatomical(shaped), expandable  implants

Standard profile
Volume      Diameter(mm)   Projection(mm)
140            94                       27
160            97                       31
180            100                     33
200            102                     33
220            105                     36
240            109                     37
260            112                     38
280            114                     38
300            117                     39
320            120                     39
340            123                     40
360            125                     41

Mentor:
saline round, contoured, post-op adjustable implants
Number      Volume      Diameter   Projection
350-1610  125+25 cc   9.5 cm        3.0 cm
350-1615  150+25 cc   10.0 cm      3.1 cm
350-1620  175+25 cc   10.6 cm      3.3 cm
350-1625  200+25 cc   11.0 cm      3.4 cm
350-1630  225+25 cc   11.5 cm      3.5 cm
350-1635  250+25 cc   11.9 cm      3.6 cm
350-1640  275+25 cc   12.3 cm      3.7 cm
350-1645  300+25 cc   12.6 cm      3.7 cm
350-1650  325+50 cc   13.0 cm      3.8 cm
350-1655  350+50 cc   13.3 cm      3.9 cm
350-1660  375+50 cc   13.6 cm      4.0 cm
350-1670  425+50 cc   14.2 cm      4.1 cm
350-1680  475+50 cc   14.8 cm      4.2 cm
350-1685  525+50 cc   15.0 cm      4.2 cm
350-1690  575+50 cc   15.0 cm      4.5 cm
350-1695  625+75 cc   15.2 cm      4.6 cm
350-1697  700+75 cc   15.6 cm      4.9 cm