US20010004714A1 - Implant holder - Google Patents

Implant holder Download PDF

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Publication number
US20010004714A1
US20010004714A1 US09/350,285 US35028599A US2001004714A1 US 20010004714 A1 US20010004714 A1 US 20010004714A1 US 35028599 A US35028599 A US 35028599A US 2001004714 A1 US2001004714 A1 US 2001004714A1
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US
United States
Prior art keywords
implant
screen
tissue
implant holder
holder
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Granted
Application number
US09/350,285
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US6350285B2 (en
Inventor
Roland Gerlach
Josef Hannappel
Juergen Reuter
Dorothea Rohrmann
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CareMed Medical Produkte AG
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CareMed Medical Produkte AG
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Assigned to CAREMED MEDICAL PRODUKTE AG reassignment CAREMED MEDICAL PRODUKTE AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HANNAPPEL, JOSEF, ROHRMANN, DOROTHEA, GERLACH, ROLAND, REUTER, JUERGEN
Publication of US20010004714A1 publication Critical patent/US20010004714A1/en
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Publication of US6350285B2 publication Critical patent/US6350285B2/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/042—Urinary bladders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/0077—Special surfaces of prostheses, e.g. for improving ingrowth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0008—Fixation appliances for connecting prostheses to the body

Definitions

  • the present invention relates to an implant holder for body implants, such as an artificial bladder, insulin pumps, a pacemaker or a drug capsule.
  • 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.
  • implants possess a housing made of material tolerated by the body, to which the body cells grow in the course of time.
  • 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.
  • some implants require a holder which ensures that they are retained in place in the body.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • FIG. 1 shows a side view of an artificial bladder implanted into the body
  • FIG. 2 shows a front view of the artificial bladder placed into the implant holder
  • FIG. 3 shows a cross-sectional view of the material of the screen of the implant holder.
  • FIG. 1 shows an implant 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.
  • a catheter 12 coming from a kidney runs into the container 11 with the catheter comprising a check valve 13 .
  • 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.
  • the implant 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 .
  • the screen 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.
  • a holding fixture 26 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 .
  • the bandages 27 , 28 are made up of relatively small strips of a material to which the cells cannot easily grow.
  • a material is selected which does not allow, to the extent possible, adhesion to the body tissue.
  • the holding fixture 26 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 26 .
  • 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.
  • the catheter connection should be detachable in order to allow the catheters to remain in the body when the bladder is exchanged.

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  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Urology & Nephrology (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Pulmonology (AREA)
  • Prostheses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Electrotherapy Devices (AREA)
  • Materials For Medical Uses (AREA)

Abstract

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.

Description

    BACKGROUND OF THE INVENTION
  • 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]
  • 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
  • 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]
  • 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]
  • 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
  • Hereunder an embodiment of the present invention is explained in detail with reference to the drawings in which [0006]
  • FIG. 1 shows a side view of an artificial bladder implanted into the body, [0007]
  • FIG. 2 shows a front view of the artificial bladder placed into the implant holder, and [0008]
  • FIG. 3 shows a cross-sectional view of the material of the screen of the implant holder. [0009]
    • DESCRIPTION OF THE PREFERRED EMBODIMENT
  • FIG. 1 shows an [0010] implant 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.
  • A [0011] catheter 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.
  • The [0012] implant 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.
  • The [0013] screen 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.
  • To the [0014] edge 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.
  • The [0015] bandages 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.
  • 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 [0016] holding fixture 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.
  • If it is necessary to exchange the [0017] implant 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.
  • If the [0018] implant 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.

Claims (4)

What is claimed is
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. Implant holder according to
claim 1
, wherein the screen (21) completely covers the horizontal projection of the implant.
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. Implant holder according to
claim 1
, wherein the screen (21) comprises a foil (23) and a velours layer (24).
US09/350,285 1998-07-15 1999-07-09 Implant holder Expired - Fee Related US6350285B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19831699 1998-07-15
DE19831699A DE19831699C1 (en) 1998-07-15 1998-07-15 Implant holder
DE19831699.2 1998-07-15

Publications (2)

Publication Number Publication Date
US20010004714A1 true US20010004714A1 (en) 2001-06-21
US6350285B2 US6350285B2 (en) 2002-02-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
US09/350,285 Expired - Fee Related US6350285B2 (en) 1998-07-15 1999-07-09 Implant holder

Country Status (4)

Country Link
US (1) US6350285B2 (en)
EP (1) EP0972496A3 (en)
JP (1) JP2000126211A (en)
DE (1) DE19831699C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160067499A1 (en) * 2002-08-26 2016-03-10 Physio-Control, Inc. Pulse detection using patient physiological signals

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DE10037504B4 (en) * 2000-08-01 2006-08-10 KRUG, Hans-Jürgen Artificial joint device
US8007531B2 (en) * 2004-08-06 2011-08-30 Frank Robert E Implantable prosthesis for positioning and supporting a breast implant
US7476249B2 (en) 2004-08-06 2009-01-13 Frank Robert E Implantable prosthesis for positioning and supporting a breast implant
US7923526B2 (en) * 2004-09-01 2011-04-12 Eastman Chemical Company Sulfopolyesters having improved clarity in water-dispersible formulations and products made therefrom
US7833284B2 (en) * 2006-06-28 2010-11-16 The Cleveland Clinic Foundation Anti-adhesion membrane
US8690900B2 (en) * 2008-07-21 2014-04-08 The Cleveland Clinic Foundation Apparatus and method for connecting two elongate body tissues
WO2011031789A1 (en) 2009-09-08 2011-03-17 Atrium Medical Corporation Hernia patch
DE112011101571A5 (en) * 2010-05-06 2013-02-21 Otto-Von-Guericke-Universität Magdeburg Medizinische Fakultät Urinary bladder prosthesis for subcutaneous implantation
ITMI20121804A1 (en) * 2012-10-24 2014-04-25 Gianni Cancarini BLOOD PROSTHESES

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160067499A1 (en) * 2002-08-26 2016-03-10 Physio-Control, Inc. Pulse detection using patient physiological signals
US11419508B2 (en) 2003-09-02 2022-08-23 West Affum Holdings Dac Pulse detection using patient physiological signals

Also Published As

Publication number Publication date
DE19831699C1 (en) 2000-04-27
JP2000126211A (en) 2000-05-09
US6350285B2 (en) 2002-02-26
EP0972496A2 (en) 2000-01-19
EP0972496A3 (en) 2000-10-25

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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

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Effective date: 20060226