• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The implant holder comprises a screen (21) comprising on one side a tissue-compatible fiber material (25) to which the body cells grow and on the other side a smooth contact surface (23) for the implant (10). A holding fixture (26) retains the implant (10) to the screen (21). The implant holder prevents the body tissue from directly growing to the implant, which would make exchange of the implant (10) more difficult. To exchange the implant the skin (16) of the patient is cut open and the holding fixture (26) is opened. The implant holder remains in the body while the implant (10) is exchanged.
    公开号:US20010004714A1
    申请号:US09/350,285
    申请日:1999-07-09
    公开日:2001-06-21
    发明作者:Roland Gerlach；Josef Hannappel；Juergen Reuter；Dorothea Rohrmann
    申请人:CareMed Medical Produkte AG；
    IPC主号:A61F2-00
    专利说明:
    [0001] The present invention relates to an implant holder for body implants, such as an artificial bladder, insulin pumps, a pacemaker or a drug capsule. [0001]
    [0002] Implants to be implanted into the bodies of human beings or animals frequently require an access to be provided for the implants to be exchanged, the contents to be replaced or the implants to be serviced. Normally such implants possess a housing made of material tolerated by the body, to which the body cells grow in the course of time. Thus the body tissue is attached to the implant capsule. If this implant capsule is to be taken out, the body tissue must be removed first. Further, some implants require a holder which ensures that they are retained in place in the body. Such a holder for a prosthetic bladder is described in U.S. Pat. No. 4,497,074. The holder comprises bandages which are fixed to the peritoneum or the musculature and retain the prosthetic bladder. [0002] SUMMARY OF THE INVENTION
    [0003] The object of the present invention is to create an implant holder which allows implants to be exchanged, if necessary, in an easy manner without any essential stress to the body. [0003]
    [0004] The implant holder according to the present invention comprises a screen to which the body tissue grows from one side whereas the other side comprises a contact surface for the implant. This contact surface is preferably smooth and tissue-rejecting. In this way a kind of pocket or nest is formed subcutaneous in the body, which accommodates the implant without the tissue completely growing around the implant. The screen further comprises a holding fixture suitable to retain the implant to the contact surface. Since implants are generally positioned immediately beneath the skin, the implant is accessible and removable through a simple skin incision without the implant adhering to the body or being retained in the body. The implant is accessible with the patient being locally anaesthetised. Thus a general anaesthesia is not required as is normally the case when the implant must be separated from the body tissue. [0004]
    [0005] The screen comprises a contact surface on the side facing the implant and a layer of tissue-compatible fibre material, preferably a velours material, on the outer surface. A suitable material for the smooth contact surface is a smooth silicone foil. Silicones are tissue-compatible and the smooth foil impedes growing of the tissue to the foil. [0005] BRIEF DESCRIPTION OF THE DRAWINGS
    [0006] Hereunder an embodiment of the present invention is explained in detail with reference to the drawings in which [0006]
    [0007] FIG. 1 shows a side view of an artificial bladder implanted into the body, [0007]
    [0008] FIG. 2 shows a front view of the artificial bladder placed into the implant holder, and [0008]
    [0009] FIG. 3 shows a cross-sectional view of the material of the screen of the implant holder. [0009] DESCRIPTION OF THE PREFERRED EMBODIMENT
    [0010] FIG. 1 shows an implant [0010] 10 which is an artificial bladder. The implant 10 comprises a container 11 made of elastic plastic material. This container which is round as seen from the front (FIG. 2) can be axially compressed. When the axial pressure force is no longer exerted, the original form of the container is restored, i. e. the container is expanded.
    [0011] A catheter [0011] 12 coming from a kidney runs into the container 11 with the catheter comprising a check valve 13. At the bottom part of the container 11 a urethral catheter 14 containing a check valve 15 leaves the container 11. The container 11 is implanted between the skin 16 and the muscular tissue 17 of the patient. The patient can compress the container 11 by exerting pressure from outside in order to press fluid contained therein into the urethral catheter 14. Then the container 11 tends to expand again thus producing a suction effect so that urine is drawn off the kidney.
    [0012] The implant [0012] 10 is exchangeably placed into the implant holder 20. The implant holder 20 comprises a screen 21 which separates the implant 10 from the muscular tissue 17. The screen 21 is large enough to completely cover the horizontal projection of the implant 10 and even rises above it as can be seen in FIG. 2 so that the screen with a projecting edge 22 juts out the contour of the implant 10.
    [0013] The screen [0013] 21 comprises a foil layer 23 of smooth silicone foil on its inner surface facing the implant 10. This foil layer is 1-1.5 mm thick. On the outer surface of the foil layer 23 there is a velours layer 24 made of tissue-compatible fibre material, preferably Dakron velours. The fine hair of this velours layer 24 stands out to the outside and forms the fibre material 25 to which grows the muscular tissue 17.
    [0014] To the edge [0014] 22 of the screen 21 a holding fixture 26 is attached which retains the implant 10 to the inner surface of the screen 21. This holding fixture 26 here comprises two bandages 27, 28 arranged crosswise both provided with a lock 29.
    [0015] The bandages [0015] 27, 28 are made up of relatively small strips of a material to which the cells cannot easily grow. For the implant 10, too, a material is selected which does not allow, to the extent possible, adhesion to the body tissue.
    [0016] While one side of the implant is completely covered by the screen, the other side of the implant is exposed with a small portion (less than 10%) being merely covered by the holding fixture [0016] 26. Alternatively, it is possible to attach the holding fixture to the screen 21 so that the side of the implant not facing the screen is completely exposed.
    [0017] If it is necessary to exchange the implant [0017] 10, the skin 16 is opened by one incision or several incisions. Then the locks 29 are unlocked and the implant 10 is accessible for removal. The implant holder 20 remains in the body while the implant 10 is taken out and replaced, if necessary. Following that the incision in the skin 16 is closed and sewn.
    [0018] If the implant [0018] 10 is an artificial bladder connected to catheters 12, 14 as in the present embodiment, the catheter connection should be detachable in order to allow the catheters to remain in the body when the bladder is exchanged.
    权利要求:
    Claims (4)
    [1" id="US-20010004714-A1-CLM-00001] 1. Implant holder for body implants, with a screen (21) to which the body tissue grows, comprising on one side tissue-compatible fibre material (25) to which the body cells grow and on the opposite side a contact surface for the implant (10), and a holding fixture (26) suitable to retain an implant (10) to the contact surface.
    [2" id="US-20010004714-A1-CLM-00002] 2. Implant holder according to
    claim 1 , wherein the screen (21) completely covers the horizontal projection of the implant.
    [3" id="US-20010004714-A1-CLM-00003] 3. Implant holder according to
    claim 1 , wherein the holding fixture (26) comprises at least one bandage (27, 28) attached to the screen (21).
    [4" id="US-20010004714-A1-CLM-00004] 4. Implant holder according to
    claim 1 , wherein the screen (21) comprises a foil (23) and a velours layer (24).
    类似技术:
    公开号 | 公开日 | 专利标题
    US5356429A|1994-10-18|Body pocket maintenance prosthesis
    US6146418A|2000-11-14|Body implant and method of implanting
    US4668222A|1987-05-26|Percutaneous access device with removable tube
    US5108430A|1992-04-28|Implantable reservoir adapted to receive and store structural devices therein
    US4781176A|1988-11-01|Implantable device
    US7083648B2|2006-08-01|Tissue lockable connecting structures
    US4402694A|1983-09-06|Body cavity access device containing a hormone source
    US4256102A|1981-03-17|Subcutaneous dialysis system
    US5759204A|1998-06-02|Methods and apparatus for establishing a stable body pocket
    US4417888A|1983-11-29|Percutaneous implant
    US5005591A|1991-04-09|Self-inflating tissue expander
    US4496349A|1985-01-29|Percutaneous implant
    US5090954A|1992-02-25|Subcutaneous access device for peritoneal dialysis
    US5848989A|1998-12-15|Implantable port with low profile housing for delivery/collection of fluids and implantation method
    US5911757A|1999-06-15|Methods and apparatus for transcutaneous access
    EP0230747A3|1987-08-19|Implantable infusion port
    US6350285B2|2002-02-26|Implant holder
    US4969902A|1990-11-13|Implantable device
    US4754750A|1988-07-05|Areola/nipple surgical wound protector
    HU226054B1|2008-04-28|Process and device for facilitating the implantation of biological material
    GB2056282A|1981-03-18|Implant device
    EP1731191A1|2006-12-13|Cuff member
    EP0422302B1|1993-09-15|Implantable prosthesis
    US7988730B2|2011-08-02|Quasi-spherical orbital implant
    EP1796596B1|2012-01-18|Quasi-spherical orbital implant
    同族专利:
    公开号 | 公开日
    EP0972496A2|2000-01-19|
    US6350285B2|2002-02-26|
    EP0972496A3|2000-10-25|
    JP2000126211A|2000-05-09|
    DE19831699C1|2000-04-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20160067499A1|2002-08-26|2016-03-10|Physio-Control, Inc.|Pulse detection using patient physiological signals|US3489647A|1964-05-06|1970-01-13|Dow Corning|Artificial organ for membrane dialysis of biological fluids|
    US3988411A|1974-02-11|1976-10-26|American Cyanamid Company|Spinning and shaping poly-|
    DE2714810C2|1976-04-05|1990-03-01|Agence Nationale De Valorisation De La Recherche , Neuilly-Sur-Seine, Hauts-De-Seine, Fr||
    JPH0524779B2|1985-11-27|1993-04-08|Haruyuki Kawahara||
    US4627429A|1986-02-28|1986-12-09|American Home Products Corporation|Storage-stable transdermal adhesive patch|
    US4969902A|1987-02-20|1990-11-13|Biagio Ravo|Implantable device|
    SU1604377A1|1987-02-23|1990-11-07|Благовещенский государственный медицинский институт|Artificial pericardium|
    DE8810783U1|1988-06-06|1988-10-20|Mecron Medizinische Produkte Gmbh, 1000 Berlin, De||
    US5475052A|1988-11-21|1995-12-12|Collagen Corporation|Collagen-synthetic polymer matrices prepared using a multiple step reaction|
    JPH06506366A|1990-12-06|1994-07-21|||
    US5356429A|1991-05-16|1994-10-18|Seare William J Jr|Body pocket maintenance prosthesis|
    US5314471A|1991-07-24|1994-05-24|Baxter International Inc.|Tissue inplant systems and methods for sustaining viable high cell densities within a host|
    WO1995001203A2|1993-06-23|1995-01-12|Cytotherapeutics, Inc.|Implantable membrane encapsulation apparatus|
    JP2580836Y2|1993-12-16|1998-09-17|繁 風間|Heart conversion device|
    US5824050A|1996-12-03|1998-10-20|Atrium Medical Corporation|Prosthesis with in-wall modulation|
    US6045497A|1997-01-02|2000-04-04|Myocor, Inc.|Heart wall tension reduction apparatus and method|
    US6120539A|1997-05-01|2000-09-19|C. R. Bard Inc.|Prosthetic repair fabric|DE10037504B4|2000-08-01|2006-08-10|KRUG, Hans-Jürgen|Artificial joint device|
    US7476249B2|2004-08-06|2009-01-13|Frank Robert E|Implantable prosthesis for positioning and supporting a breast implant|
    US8007531B2|2004-08-06|2011-08-30|Frank Robert E|Implantable prosthesis for positioning and supporting a breast implant|
    US7923526B2|2004-09-01|2011-04-12|Eastman Chemical Company|Sulfopolyesters having improved clarity in water-dispersible formulations and products made therefrom|
    US7833284B2|2006-06-28|2010-11-16|The Cleveland Clinic Foundation|Anti-adhesion membrane|
    US8690900B2|2008-07-21|2014-04-08|The Cleveland Clinic Foundation|Apparatus and method for connecting two elongate body tissues|
    US20110144667A1|2009-09-08|2011-06-16|Anthony Richard Horton|Hernia patch|
    EP2566414B1|2010-05-06|2017-08-02|Primed Halberstadt Medizintechnik GmbH|Bladder prosthesis for subcutaneous implantation|
    ITMI20121804A1|2012-10-24|2014-04-25|Gianni Cancarini|BLOOD PROSTHESES|
    法律状态:
    1999-10-04| AS| Assignment|Owner name: CAREMED MEDICAL PRODUKTE AG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GERLACH, ROLAND;HANNAPPEL, JOSEF;REUTER, JUERGEN;AND OTHERS;REEL/FRAME:010277/0294;SIGNING DATES FROM 19990625 TO 19990630 |
    2005-09-14| REMI| Maintenance fee reminder mailed|
    2006-02-27| LAPS| Lapse for failure to pay maintenance fees|
    2006-03-29| STCH| Information on status: patent discontinuation|Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
    2006-04-25| FP| Expired due to failure to pay maintenance fee|Effective date: 20060226 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE19831699A|DE19831699C1|1998-07-15|1998-07-15|Implant holder|
    DE19831699||1998-07-15||
    DE19831699.2||1998-07-15||
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