EP3697319A2 - Shape memory tubular retractor and self-expanding graft- coated nitinol tubular retractor arrangement - Google Patents

Shape memory tubular retractor and self-expanding graft- coated nitinol tubular retractor arrangement

Info

Publication number
EP3697319A2
EP3697319A2 EP18867818.9A EP18867818A EP3697319A2 EP 3697319 A2 EP3697319 A2 EP 3697319A2 EP 18867818 A EP18867818 A EP 18867818A EP 3697319 A2 EP3697319 A2 EP 3697319A2
Authority
EP
European Patent Office
Prior art keywords
tissue
order
retractor
nitinol
shape memory
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.)
Pending
Application number
EP18867818.9A
Other languages
German (de)
French (fr)
Other versions
EP3697319A4 (en
Inventor
Ayhan OLCAY
Serdar Baki ALBAYRAK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Innowayrg Arastirma Gelistirme Ve Danismanlik Hizmetleri Sanayi Ve Ticaret AS
Original Assignee
Innowayrg Arastirma Gelistirme Ve Danismanlik Hizmetleri Sanayi Ve Ticaret AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Innowayrg Arastirma Gelistirme Ve Danismanlik Hizmetleri Sanayi Ve Ticaret AS filed Critical Innowayrg Arastirma Gelistirme Ve Danismanlik Hizmetleri Sanayi Ve Ticaret AS
Publication of EP3697319A2 publication Critical patent/EP3697319A2/en
Publication of EP3697319A4 publication Critical patent/EP3697319A4/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00862—Material properties elastic or resilient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00867—Material properties shape memory effect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00942—Material properties hydrophilic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
    • A61B2017/0225—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery flexible, e.g. fabrics, meshes, or membranes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06—Measuring instruments not otherwise provided for
    • A61B2090/062—Measuring instruments not otherwise provided for penetration depth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06—Measuring instruments not otherwise provided for
    • A61B2090/064—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension
    • A61B2090/065—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension for measuring contact or contact pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
    • A61B2090/309—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure using white LEDs

Definitions

  • the invention relates to a self-expanding graft-coated nitinol tubular retractor system providing maximum effect and advantages of millions of patients around the world, defined as Omniport Universale and having the potential of a wide application range in today's various surgical procedures.
  • the present invention can be applied in the technical field of medical instruments in neurosurgery, and provides a brain retractor device comprising: a flexible retracting component which comprises an expandable sacculus, a supporting tube, a connecting base, a lockable lock mechanism, and a pressurizing device connector configured for expanding or retracting the expandable sacculus.
  • a brain depressor is sheathed on a distal end of the flexible retractor component and enters an avulsed passageway avulsed by the flexible retractor component so as to make the avulsed passageway remain an avulsed status.
  • the lock mechanism is pushed into the connecting base, and the expandable sacculus is stretched and becomes slim, such that the length and the position of the expandable sacculus that enter the diseased region are controlled. Moreover, by injecting liquid into the pressurizing device connector, the expandable sacculus is expanded; and when liquid is discharged, the expandable sacculus is retracted.”
  • a disposable self- retaining brain and delicate tissue retractor with interchangeable disposable blades The blades may be made of various shapes and sizes and, in most instances, are designed to be coated with a strip of gauze like material to protect and prevent injury to the brain or other soft tissue.
  • the patent application no. TR 2017-14049 relates to a novel brain retractor (A) to be used in particularly brain tumors and cerebrovascular surgery (aneurysm, AVM, cavernoma), facilitating the microdissection, reducing the surgery time, easy to use and not harmful for the brain tissue and the object of the said invention is to provide an end having a soft structure which is used for preventing damages to the brain tissues.
  • Minimally invasive surgical procedures require the most appropriate surgical attempts in order to prevent the brain damages and modem microsurgery and endoscopic or conventional surgical procedures are totally based on this principle.
  • rigid or flexible retractor systems in various disciplines such as neurosurgery, urology, cardiovascular surgery, and etc., there is no concept for the self-expanding retractor system found.
  • the present invention relates to a shape memory tubular retractor and a self-expanding graft-coated nitinol tubular retractor system arrangement developed for eliminating the disadvantages mentioned above and for introducing novel advantages to the related technical field.
  • the invention providing maximum effect and advantages of millions of patients around the world, described as Omniport Universale and having the potential of a wide application range in today's various surgical procedures is a self-expanding graft- coated nitinol tubular retractor system.
  • the objects of the invention are defined as follows.
  • An object of the invention is to prevent fluid passage without damaging to the other tissues during the surgical operation. Another object of the invention is to prevent the tissue to be damaged by applying minimum radial force on the area to be carry out surgical operation by means of the body which is produced of nitinol or other shape memory alloys and having a reticular structure turned to multiple wires from a single wire.
  • Another object of the invention is to enable the clearance diameter of the retractor to be adjustable, thereby helping the physicians to obtain an adequate clearance having minimum radial pressure applied on the tissue to eliminate or minimize the risk of complication after the surgery.
  • Another object of the invention is to coat the retractor consisting of latticed shape memory alloy, nitinol, or other shape memory alloys with PVC or any similar material in order to block the penetration of the micro tissues into the area to be treated with surgical operation.
  • Another object of the invention is to coat the distal end of the retractor with a soft material in order to reduce the risk of tissue damages on the surface.
  • Another object of the invention is to accommodate the metallic latticed retractor surface with a capillary resistance detection system in order to warn the physician during the operation.
  • Another object of the invention is to enable micro-latticed or circular frame to contain a micro-LED lighting system on the distal surface thereof.
  • Another object of the invention is to enable the receiver to contain cooling or heating systems for the longer-term operations.
  • Another object of the invention is to provide holder for various tools such as suction cannulas, etc. and fixators.
  • Another object of the invention is to provide platform location indicators, digital and water gauge. Drawings
  • Figure 5- Combined perspective view of the frame, reticular structure, and the sheath
  • A- The required force is provided for opening the body having nitinol latticed graft- coated cylindrical-shaped and coated with a collapsible frame; the interior side of the tissue is maintained open by providing the surgical access to the lesion (tumor, hematoma, vascular malformation, abscess, and etc.); and the penetration of the neighboring tissue is prevented within the retractor.
  • It consists of two or more circular platforms connected to the diameter of the frame and to each other, which may be folded into 3 to 12 with relative to the receiver, extending from one end of the nitinol network to the other end, with a certain distance and location.
  • the frame is supported by the plane rods in order to maintain the frame integral during the folding and opening again.
  • a balloon is comprised herein which expands the nitinol network within the tissue by a uniform radial force (until the safe pressure cut-off value) detected by the sensors connected to the nitinol-latticed network surface.
  • a sheath is comprised which indicates the depth of the retractor in order to properly locate the sheath and to shape the end according to the sheath and which is loaded with the soft end of the retractor and the calibrated indicator.
  • a platform comprising stabilizer leg(s) to optimize the operation area with the correct angle and shape to create economically accurate position.
  • a gun-shaped release and retraction mechanism to release the puller delicately and to provide the optimum harmless force applied on the tissue with the calibrated diameters.
  • micro-pressure sensors for determining the pressure applied on the tissue in real time and also a display for informing the surgeon who will be capable of monitoring the pressure applied with the maximum safety pressure (N, Kgf, Pascal, etc.).
  • the device of the invention is structurally evaluated with the components described below and the working principle is discussed as defined below.
  • the devices is made up of preformed nitinol or any shape memory alloy having a cylindrical structure with or without an inner frame and there is a soft end having depth determiners on the catheter surface in a certain location with two platform pieces or on the organ surface in order to open or expose a certain body part or soft tissue by means of a single tubular self-expanding retractor inserted thereon and the pressure sensors measuring the transmission force applied on the surrounding tissue in real time in order to protect the construction by means of a fixator comprising a transfer loader and to monitor the retraction system.
  • the screening is enabled by a soft end with the depth pointers on the catheter surface and which may be located for opening an area on the soft tissue or on any body portion to maintain the lumen open by means of a tool made of nitinol preformed for a cylindrical structure to be opened by blowing a compatible balloon located on a side of the latticed-network in order to provide a uniform expansion without an interior frame or any other shape memory alloy; a fixator having a transmission loader; and the pressure sensors measuring the transmission forces of the retraction system applied on the surrounding tissue in real time.
  • the device is made up of preformed nitinol or any other shape memory alloy having a cylindrical structure or having preferably three or more vertical nitinol blades which may be folded symmetrically in order to minimize the diameter to enter the tissue within the nitinol reticular network; and the real-time monitoring of the surrounding tissue is enabled by the soft end comprising depth determiners on the catheter surface, a fixator having a transmission loader, and the retraction system for the homogeneous expansion on the soft tissue or on any body part in order to maintain the construction in a certain location.
  • the device which is made up of nitinol or any preformed shape memory alloy having a cylindrical structure with or without a body frame is accommodated with the pressure sensors displaying the transmission forces applied on the tissue surrounding the retraction system where the location may be additionally adjusted and/or may be resized, via a fixator having a soft end transmission loader with the depth determiners on the catheter surface and two platform pieces in order to keep the structure in a certain level in any body part or soft tissue, and the calibration is provided on the collapsible circular peripheries of the frame by means of the releasing system.
  • Said adjustable sizing function of the opening diameter enables the physicians to obtain an adequate clearance having minimum radial pressure applied on the tissue to eliminate or minimize the risk of complication, after the surgery of the patient.
  • Latticed shape memory alloy (nitinol or any other) is coated with PVC or any similar material in order to prevent the micro-tissue to enter into the operational area of the retractor.
  • the outer surface of the metal-latticed network is coated with a hydrophilic and/or lipophilic material in order to minimize the rigid tissue risk during the expansion of the retractor.
  • the distal end of the retractor is coated with a soft material in order to reduce the risk of tissue damages on the surface.
  • the releasing mechanism receives the latticed mesh portion during any releasing time with any diameter and length.
  • the system has different diameter and the length of the same releasing mechanism and the opening component which may be loaded on the platform.
  • the surface of the metallic-latticed reactor has the capillary resistance detection system in order to warn the physician during the operation.
  • the surgical operational area is lightened by a micro-LED lighting system.
  • the receiver contains cooling or heating systems for the longer-term operations. There is a conical proximal end for providing the physicians with larger working area during the operation. Various tools such as suction cannulas, etc. and fixators may be used.
  • the opening diameter provides an adequate opening having a minimum radial pressure which may be adjusted and applied on the tissue.
  • the retractor may consist of 2 or more, and preferably 2 circular platforms which are connected to each other, nestable, and collapsible.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Surgical Instruments (AREA)
  • Materials For Medical Uses (AREA)
  • Prostheses (AREA)

Abstract

The invention relates to a self-expanding graft-coated nitinol tubular retractor system providing maximum effect and advantages of millions of patients around the world, defined as Omniport Universale and having the potential of a wide application range in today's various surgical procedures. Correspondingly, the objects of the invention are defined as follows.

Description

SHAPE MEMORY TUBULAR RETRACTOR AND SELF-EXPANDING GRAFT- COATED NITINOL TUBULAR RETRACTOR ARRANGEMENT
TECHNICAL FIELD
The invention relates to a self-expanding graft-coated nitinol tubular retractor system providing maximum effect and advantages of millions of patients around the world, defined as Omniport Universale and having the potential of a wide application range in today's various surgical procedures.
STATE OF THE ART
In the European Patent Application No. EP3192553A1 , it is disclosed that "The present invention can be applied in the technical field of medical instruments in neurosurgery, and provides a brain retractor device comprising: a flexible retracting component which comprises an expandable sacculus, a supporting tube, a connecting base, a lockable lock mechanism, and a pressurizing device connector configured for expanding or retracting the expandable sacculus. A brain depressor is sheathed on a distal end of the flexible retractor component and enters an avulsed passageway avulsed by the flexible retractor component so as to make the avulsed passageway remain an avulsed status. In the brain retractor device, the lock mechanism is pushed into the connecting base, and the expandable sacculus is stretched and becomes slim, such that the length and the position of the expandable sacculus that enter the diseased region are controlled. Moreover, by injecting liquid into the pressurizing device connector, the expandable sacculus is expanded; and when liquid is discharged, the expandable sacculus is retracted."
In the U.S. Patent Application No. US3766910, it is disclosed that "A disposable self- retaining brain and delicate tissue retractor with interchangeable disposable blades. The blades may be made of various shapes and sizes and, in most instances, are designed to be coated with a strip of gauze like material to protect and prevent injury to the brain or other soft tissue." The patent application no. TR 2017-14049 relates to a novel brain retractor (A) to be used in particularly brain tumors and cerebrovascular surgery (aneurysm, AVM, cavernoma), facilitating the microdissection, reducing the surgery time, easy to use and not harmful for the brain tissue and the object of the said invention is to provide an end having a soft structure which is used for preventing damages to the brain tissues.
Minimally invasive surgical procedures require the most appropriate surgical attempts in order to prevent the brain damages and modem microsurgery and endoscopic or conventional surgical procedures are totally based on this principle. Though there are numerous rigid or flexible retractor systems in various disciplines such as neurosurgery, urology, cardiovascular surgery, and etc., there is no concept for the self-expanding retractor system found.
In none of the application mentioned, any of the problems described above is not prevented.
There is a need for exhibiting a novel brain retractor because of the disadvantages mentioned above.
DESCRIPTION OF THE INVENTION
The present invention relates to a shape memory tubular retractor and a self-expanding graft-coated nitinol tubular retractor system arrangement developed for eliminating the disadvantages mentioned above and for introducing novel advantages to the related technical field.
The invention providing maximum effect and advantages of millions of patients around the world, described as Omniport Universale and having the potential of a wide application range in today's various surgical procedures is a self-expanding graft- coated nitinol tubular retractor system. Correspondingly, the objects of the invention are defined as follows.
An object of the invention is to prevent fluid passage without damaging to the other tissues during the surgical operation. Another object of the invention is to prevent the tissue to be damaged by applying minimum radial force on the area to be carry out surgical operation by means of the body which is produced of nitinol or other shape memory alloys and having a reticular structure turned to multiple wires from a single wire.
Another object of the invention is to enable the clearance diameter of the retractor to be adjustable, thereby helping the physicians to obtain an adequate clearance having minimum radial pressure applied on the tissue to eliminate or minimize the risk of complication after the surgery.
Another object of the invention is to coat the retractor consisting of latticed shape memory alloy, nitinol, or other shape memory alloys with PVC or any similar material in order to block the penetration of the micro tissues into the area to be treated with surgical operation.
Another object of the invention is to coat the distal end of the retractor with a soft material in order to reduce the risk of tissue damages on the surface.
Another object of the invention is to accommodate the metallic latticed retractor surface with a capillary resistance detection system in order to warn the physician during the operation.
Another object of the invention is to enable micro-latticed or circular frame to contain a micro-LED lighting system on the distal surface thereof.
Another object of the invention is to enable the receiver to contain cooling or heating systems for the longer-term operations.
Another object of the invention is to provide holder for various tools such as suction cannulas, etc. and fixators.
Another object of the invention is to provide platform location indicators, digital and water gauge. Drawings
The applications of the present invention summarized briefly above and addressed in more detail below may be understood by referring to the exemplary applications defined in the appended drawings of the invention.
However, it has to be mentioned that the appended drawings illustrate the typical applications of this invention only, thus it cannot be assumed that they limit the scope of the invention, because it may allow for equally effective applications.
Figure 1- Inner frame perspective view
Figure 2- Perspective view of the reticular structure together with the inner frame Figure 3- Reticular structure perspective view
Figure 4- Sheath perspective view
Figure 5- Combined perspective view of the frame, reticular structure, and the sheath
For the ease of understanding, identical reference numerals are used in the possible cases in order to define the identical members common in the figures. The figures have not been drawn to scale and they may be simplified for clarity. It has to be considered that the members and properties of an application may be included in the other applications usefully without any need for further explanation.
Description of the Details in Drawings
10- Frame
20- Reticular structure
30- Sheath
DETAILED DESCRIPTION OF THE INVENTION
In this detailed description, preferred alternatives of the shape memory tubular retractor and self-expanding graft-coated nitinol tubular retractor arrangement of the invention are described for better understanding the subject and without any limiting effect.
Working principle of the invention is described in three phases below.
A- The required force is provided for opening the body having nitinol latticed graft- coated cylindrical-shaped and coated with a collapsible frame; the interior side of the tissue is maintained open by providing the surgical access to the lesion (tumor, hematoma, vascular malformation, abscess, and etc.); and the penetration of the neighboring tissue is prevented within the retractor.
In order to prevent each possible degradation, contusion damages are prevented on the tissue surrounding the nitinol latticed body consisting of multiple wires from a single wire having different calibration of the wire diameter of the smallest section possible until the minimum diameter and constituting a network system in order to keep the smallest radial force possible away from the retraction area of the body tissues.
It consists of two or more circular platforms connected to the diameter of the frame and to each other, which may be folded into 3 to 12 with relative to the receiver, extending from one end of the nitinol network to the other end, with a certain distance and location.
The frame is supported by the plane rods in order to maintain the frame integral during the folding and opening again.
B- A balloon is comprised herein which expands the nitinol network within the tissue by a uniform radial force (until the safe pressure cut-off value) detected by the sensors connected to the nitinol-latticed network surface.
C- In order to provide the system with a radial support, there are very plane and perpendicular (to the base surface area) blades located equidistantly from each other to create a symmetrical design.
A sheath is comprised which indicates the depth of the retractor in order to properly locate the sheath and to shape the end according to the sheath and which is loaded with the soft end of the retractor and the calibrated indicator.
In order to access effectively to the surgical area and to expose thereof, a platform is provided comprising stabilizer leg(s) to optimize the operation area with the correct angle and shape to create economically accurate position. There is a gun-shaped release and retraction mechanism to release the puller delicately and to provide the optimum harmless force applied on the tissue with the calibrated diameters.
There are two or more micro-pressure sensors for determining the pressure applied on the tissue in real time and also a display for informing the surgeon who will be capable of monitoring the pressure applied with the maximum safety pressure (N, Kgf, Pascal, etc.).
The device of the invention is structurally evaluated with the components described below and the working principle is discussed as defined below.
The devices is made up of preformed nitinol or any shape memory alloy having a cylindrical structure with or without an inner frame and there is a soft end having depth determiners on the catheter surface in a certain location with two platform pieces or on the organ surface in order to open or expose a certain body part or soft tissue by means of a single tubular self-expanding retractor inserted thereon and the pressure sensors measuring the transmission force applied on the surrounding tissue in real time in order to protect the construction by means of a fixator comprising a transfer loader and to monitor the retraction system.
The screening is enabled by a soft end with the depth pointers on the catheter surface and which may be located for opening an area on the soft tissue or on any body portion to maintain the lumen open by means of a tool made of nitinol preformed for a cylindrical structure to be opened by blowing a compatible balloon located on a side of the latticed-network in order to provide a uniform expansion without an interior frame or any other shape memory alloy; a fixator having a transmission loader; and the pressure sensors measuring the transmission forces of the retraction system applied on the surrounding tissue in real time.
The device is made up of preformed nitinol or any other shape memory alloy having a cylindrical structure or having preferably three or more vertical nitinol blades which may be folded symmetrically in order to minimize the diameter to enter the tissue within the nitinol reticular network; and the real-time monitoring of the surrounding tissue is enabled by the soft end comprising depth determiners on the catheter surface, a fixator having a transmission loader, and the retraction system for the homogeneous expansion on the soft tissue or on any body part in order to maintain the construction in a certain location.
The device which is made up of nitinol or any preformed shape memory alloy having a cylindrical structure with or without a body frame is accommodated with the pressure sensors displaying the transmission forces applied on the tissue surrounding the retraction system where the location may be additionally adjusted and/or may be resized, via a fixator having a soft end transmission loader with the depth determiners on the catheter surface and two platform pieces in order to keep the structure in a certain level in any body part or soft tissue, and the calibration is provided on the collapsible circular peripheries of the frame by means of the releasing system.
Said adjustable sizing function of the opening diameter enables the physicians to obtain an adequate clearance having minimum radial pressure applied on the tissue to eliminate or minimize the risk of complication, after the surgery of the patient.
Latticed shape memory alloy (nitinol or any other) is coated with PVC or any similar material in order to prevent the micro-tissue to enter into the operational area of the retractor.
The outer surface of the metal-latticed network is coated with a hydrophilic and/or lipophilic material in order to minimize the rigid tissue risk during the expansion of the retractor.
The distal end of the retractor is coated with a soft material in order to reduce the risk of tissue damages on the surface.
The releasing mechanism receives the latticed mesh portion during any releasing time with any diameter and length.
The system has different diameter and the length of the same releasing mechanism and the opening component which may be loaded on the platform. The surface of the metallic-latticed reactor has the capillary resistance detection system in order to warn the physician during the operation.
On the distal surface of the micro-latticed, latticed, or circular frame periphery, the surgical operational area is lightened by a micro-LED lighting system.
The receiver contains cooling or heating systems for the longer-term operations. There is a conical proximal end for providing the physicians with larger working area during the operation. Various tools such as suction cannulas, etc. and fixators may be used.
There are digital and water gauges of the platform location indicators. These retractor systems may operate within the temperature range of 10° to 40°C.
The opening diameter provides an adequate opening having a minimum radial pressure which may be adjusted and applied on the tissue.
The retractor may consist of 2 or more, and preferably 2 circular platforms which are connected to each other, nestable, and collapsible.

Claims

1. A devices which is made up of preformed nitinol or any shape memory alloy having a cylindrical structure with or without an inner frame characterized by a shape memory tubular retractor and self-expanding graft coated nitinol tubular retractor comprising a soft end having depth determiners on the catheter surface in a certain location with two platform pieces or on the organ surface for opening or exposing by means of a single tubular self-expanding retractor inserted thereon; and the pressure sensors measuring the transmission force applied on the surrounding tissue in real time in order to protect the construction by means of a fixator comprising a transfer loader and to monitor the retraction system.
2. A device according to claim 1 characterized in that the screening is enabled by a soft end with the depth pointers on the catheter surface and which may be located for opening an area on the soft tissue or on any body portion to maintain the lumen open by means of a tool made of nitinol preformed for a cylindrical structure to be opened by blowing a compatible balloon located on a side of the latticed-network in order to provide a uniform expansion without an interior frame or any other shape memory alloy; a fixator having a transmission loader; and the pressure sensors measuring the transmission forces of the retraction system applied on the surrounding tissue in real time.
3. A device according to claim 1 or 2 characterized in that it is made up of preformed nitinol or any other shape memory alloy having a cylindrical structure or having preferably three or more vertical nitinol blades which may be folded symmetrically in order to minimize the diameter to enter the tissue within the nitinol reticular network in order to enable the surrounding tissue to be monitored in real time via the retraction system for the homogeneous expansion on the soft tissue or any body portion with two platform pieces, in order to keep the construction in a certain location by means of a fixator having a soft end comprising the depth determiners on the catheter surface and the transmission loader.
4. A device according to any of the preceding claims characterized in that it is made up of nitinol or any preformed shape memory alloy having a cylindrical structure with or without a body frame which is accommodated with the pressure sensors displaying the transmission forces applied on the tissue surrounding the retraction system where the location may be additionally adjusted and/or may be resized via a fixator having a soft end transmission loader with the depth determiners on the catheter surface and two platform pieces in order to keep the structure in a certain level in any body part or soft tissue, and the calibration is provided on the collapsible circular peripheries of the frame by means of the releasing system.
5. A device according to any of the preceding claims characterized by comprising an adjustable sizing function of the opening diameter enabling the physicians to obtain an adequate clearance having minimum radial pressure applied on the tissue to eliminate or minimize the risk of complication, after the surgery of the patient.
6. A device according to any of the preceding claims characterized in that the latticed shape memory alloy (nitinol or any other) is coated with PVC or any similar material in order to prevent the micro-tissue entrance into the operational area of the retractor.
7. A device according to any of the preceding claims characterized in that the outer surface of the metal-latticed network is coated with a hydrophilic and/or lipophilic material in order to minimize the rigid tissue risk during the expansion of the retractor.
8. A device according to any of the preceding claims characterized in that the distal end of the retractor is coated with a soft material in order to reduce the risk of tissue damages on the surface.
9. A device according to any of the preceding claims characterized in that the releasing mechanism receives the latticed mesh portion during any releasing time with any diameter and length.
10. A device according to any of the preceding claims characterized by having different diameter and length of the same releasing mechanism and the opening component which may be loaded on the platform.
11. A device according to any of the preceding claims characterized in that the metallic latticed retractor surface is accommodated with a capillary resistance detection system in order to warn the physician during the operation.
12. A device according to any of the preceding claims characterized in that there is a micro-LED lighting system on the distal surface of the micro-latticed, latticed, or circular frame periphery.
13. A device according to any of the preceding claims characterized by comprising a cooling or heating system on the receiver for the longer-term operations.
14. A device according to any of the preceding claims characterized by comprising a conical proximal end in order to provide a larger operation area for the physicians during the operation.
15. A device according to any of the preceding claims characterized by comprising a conical proximal end in order to provide the physician with a larger working area.
16. A device according to any of the preceding claims characterized by comprising various tools such as suction cannulas, etc. and fixators.
17. A device according to any of the preceding claims characterized by comprising a retractor system operable within the temperature range of 10° to 40°C.
18. A device according to any of the preceding claims characterized by adjusting the clearance diameter and providing an adequate clearance having minimum radial pressure applied on the tissue. 9. A device according to any of the preceding claims characterized in that it is made up of 2 or more, and preferably 2 circular platforms which is connected to each other, nestable, and collapsible.
EP18867818.9A 2017-10-17 2018-09-27 Shape memory tubular retractor and self-expanding graft- coated nitinol tubular retractor arrangement Pending EP3697319A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/15994A TR201715994A2 (en) 2017-10-17 2017-10-17 CONSTRUCTION OF GRAFT COATED NITINOL TUBULAR EQUIPMENT
PCT/TR2018/000097 WO2019078791A2 (en) 2017-10-17 2018-09-27 Shape memory tubular retractor and self-expanding graft- coated nitinol tubular retractor arrangement

Publications (2)

Publication Number Publication Date
EP3697319A2 true EP3697319A2 (en) 2020-08-26
EP3697319A4 EP3697319A4 (en) 2021-10-20

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EP18867818.9A Pending EP3697319A4 (en) 2017-10-17 2018-09-27 Shape memory tubular retractor and self-expanding graft- coated nitinol tubular retractor arrangement

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EP (1) EP3697319A4 (en)
TR (1) TR201715994A2 (en)
WO (1) WO2019078791A2 (en)

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* Cited by examiner, † Cited by third party
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US8182527B2 (en) * 2001-05-07 2012-05-22 Cordis Corporation Heparin barrier coating for controlled drug release
US20100331883A1 (en) * 2004-10-15 2010-12-30 Schmitz Gregory P Access and tissue modification systems and methods
EP2460544A1 (en) * 2006-06-30 2012-06-06 Tyco Healthcare Group LP Medical Devices with Amorphous Metals and Methods Therefor
AU2010286353B2 (en) * 2009-08-31 2015-09-03 Applied Medical Resources Corporation Multifunctional surgical access system
US8679088B2 (en) * 2011-06-14 2014-03-25 John M. Abrahams Cranial evacuation system and use thereof
SG11201507266SA (en) * 2013-03-15 2015-10-29 William L Hunter Stent monitoring assembly and method of use thereof
CA2998709A1 (en) * 2014-09-17 2016-03-24 Canary Medical Inc. Devices, systems and methods for using and monitoring medical devices

Also Published As

Publication number Publication date
TR201715994A2 (en) 2017-11-21
WO2019078791A3 (en) 2019-07-04
WO2019078791A2 (en) 2019-04-25
EP3697319A4 (en) 2021-10-20

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