EP3125783A1 - Flexible medizinische referenzvorrichtung, medizinisches navigationssystem und verfahren - Google Patents
Flexible medizinische referenzvorrichtung, medizinisches navigationssystem und verfahrenInfo
- Publication number
- EP3125783A1 EP3125783A1 EP15713163.2A EP15713163A EP3125783A1 EP 3125783 A1 EP3125783 A1 EP 3125783A1 EP 15713163 A EP15713163 A EP 15713163A EP 3125783 A1 EP3125783 A1 EP 3125783A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- referencing
- marking area
- pattern
- referencing device
- navigation system
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00831—Material properties
- A61B2017/00858—Material properties high friction or non-slip
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B2034/2046—Tracking techniques
- A61B2034/2065—Tracking using image or pattern recognition
-
- 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
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
- A61B2090/3983—Reference marker arrangements for use with image guided 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
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
- A61B2090/3991—Markers, e.g. radio-opaque or breast lesions markers having specific anchoring means to fixate the marker to the tissue, e.g. hooks
Definitions
- the invention relates to a medical referencing device for a medical navigation system, with which a movement of a body part, in particular of the thigh, with the attached referencing device is traceable in space.
- the invention relates to a medical navigation system for tracking a medical referencing device in space, comprising a medical referencing device, a detection device for generating images of the referencing device and providing related image signals and a data processing device for processing the image signals.
- the invention relates to a method for tracking a medical referencing device in space with a navigation system.
- Medical referencing devices are known which are used, for example, in knee prosthetics in order to make it easier for an operator to implant an artificial knee joint.
- Conventional referencing devices comprise a marking device with rigidly arranged relative to each other marking elements (so-called "Rigid Body"), whose movement is tracked in space by a navigation system.
- the marking device is screwed to the femur bone or the tibial bone via a fastening device, usually a bone screw, and thereby firmly fixed to it.
- a fastening device usually a bone screw
- Rigid Bodys on a femur in the present case thigh
- the tibia in the present case lower leg
- the cuff forms a fastening device with a carrier body for the marking device, which can be deformed from its, for example, originally planar shape and adapted to the contour of the body part (for example of the femur or the tibia) in order to enable a positive fit on the body part.
- Carrier bodies are also known which can be glued onto the body part and to which the marking device is fixed.
- Object of the present invention is to provide a referencing device of the type mentioned, with the position data of the body part on which the referencing device is mounted, can be obtained patient friendly.
- An object-solving referencing device of the type mentioned above is characterized by an extensively extending, in at least one direction of extension extensible Referenz ists redesign which is adaptable in shape to the contour of the body part and having a Markier Scheme comprising or forms a pattern, wherein the referencing body is designed so that the pattern is at least partially undeformed or substantially undeformed during the movement of the body part, and wherein the pattern is at least partially approachable by the navigation system as a reference for tracking the body part in space.
- the invention includes the consideration that a marking device, in particular in the form of a so-called "rigid body", as used in conventional referencing devices, can be saved by the function of the marking elements of the marking device of one or more other components of the marker Referencing device can be transmitted.
- the present invention proposes to use a deformable planar and in its shape to the contour of the body part (for example, the femur or tibia) customizable Referenz réelles redesign.
- the referencing body can be fixed non-invasively and thus gentle to the patient on the body part via the attachment device of the referencing device.
- the fastening device may, for example, have one or more fixing elements.
- the referencing body is elastically extensible in at least one direction of its extension.
- the soft tissues can thereby be compressed by stretching the referencing body. This makes it possible to reduce a relative movement of the soft tissues with each other. The movement induced by the body part on the referencing body can thereby likewise be reduced so that it can only carry out a slight intrinsic movement relative to the body part. Movements of soft tissue to each other can be further absorbed within the Referenz ists stressess because the- This is elastically stretchable.
- the referencing body has a marking area that includes or forms a pattern.
- the pattern is designed so that it can be recognized by the navigation system and viewed by it as a reference for the tracking of the body part with the reference device attached thereto in space.
- the referencing body is designed so that upon movement of the body part, the pattern is at least partially undeformed or substantially undeformed by, as mentioned above, any movements of soft tissues within the referencing body are absorbed so that the pattern at least partially not of it or to a negligible extent.
- the navigation system can at least partially recognize the pattern as "spatially stable" and use it as a valid reference.
- the navigation system can assume that a pattern is arranged in an unchanged position relative to the femur bone, if it is recognized as a valid reference. This can also be closed to the position of the femur in space.
- the pattern is a regular pattern.
- the pattern may be, for example, grid-shaped, grid-shaped or reticulated.
- the referencing body is elastically extensible in two directions aligned transversely with respect to one another in the area of its extent.
- the referencing body is elastically stretchable in a direction extending in the circumferential direction of the body part in the state attached to the body part and in a direction aligned transversely thereto, in particular in the longitudinal direction of the body part.
- the extensibilities of the referencing body differ in the two directions from each other. It can be provided, for example, that the extensibility of the referencing body in the body part solidified state along the body part is greater than in the circumferential direction of the body part.
- the marking region is integrally incorporated in the referencing body.
- this can be understood to mean, in particular, that the marking region is manufactured by manufacturing technology as part of the referencing body.
- the marking region is knitted into the referencing body, will be discussed below, or formed in this.
- the marking area forms the reference body.
- the marking area can completely cover the pattern.
- the referencing body advantageously has a non-marking area adjoining the marking area, wherein the extensibility of the non-marking area differs from that of the marking area.
- a region of the referencing body which does not encompass the pattern of the marking region is regarded as the non-marking region.
- the non-marking area may surround the marking area, for example.
- the non-marking area forms a border for the marking area in the area of the referencing body.
- the non-marking area In particular, it can form an edge of the referencing body which encloses the marking area.
- the referencing body can have a rectangular or substantially rectangular contour in plan view. For example, this is the case when the referencing body is a portion or component of a bandage designed by the referencing device, which will be discussed in more detail below.
- the marking region has a rectangular or substantially rectangular contour in plan view of the surface of the referencing body. This is particularly advantageous if the non-marking area, as mentioned above, surrounds the marking area and forms an edge of the referencing body.
- the marking region has a waisted contour in plan view of the surface of the Referenz ists stressess, with two widening sections and a narrowing section arranged therebetween.
- Such a configuration is used, for example, in a referencing device in the form of a thigh bandage.
- the orientation of the marking region with the widening section narrowing section widening section is preferably aligned in the longitudinal direction of the femur.
- the extensibility of the non-marking region in at least one direction of the extension of the referencing body is less than the extensibility of the marking region.
- the extensibility of the non-marking region can also be less than that of the marking region in two directions of the extension of the referencing body oriented transversely to one another.
- the marking region and the non-marking region are preferably integrally connected to one another, so that the referencing body can be manufactured in a structurally simple manner.
- the referencing body is or includes a textile composite, preferably a knitted fabric, a knitted fabric or a woven fabric, at least at the marking region, the pattern being determined by the type of binding of the textile composite and / or by the nature and / or the color the threads used for its production is formed.
- a textile composite preferably a knitted fabric, a knitted fabric or a woven fabric, at least at the marking region, the pattern being determined by the type of binding of the textile composite and / or by the nature and / or the color the threads used for its production is formed.
- the possibility is given to design the referencing body at the marking area in a manner that makes it easy to stretch.
- the type of binding of the textile composite leads, for example, to a surface texture and / or a coloring of the marking area, which can be interpreted as a pattern by the navigation system.
- Thread-shaped starting material for the textile composite may comprise natural or synthetic fibers and
- the referencing body may have a non-marking area adjoining the marking area, wherein the marking area and the non-marking area are integrally incorporated into the textile composite, wherein the at least one marking area and the non-marking area differ from each other in the nature of the textile composite.
- the non-marking area for example the abovementioned non-marking area and the marking area, can thereby be provided with different properties, in particular with different extensibilities. This allows a simple, versatile and cost-effective production of the homing device.
- the marking area and the non-marking area are preferably connected to each other by knitting, knitting or weaving. This makes it possible to knit, work or weave the marking area and the non-marking area, in particular the referencing body, in a single, uniform manufacturing process. In particular, it is not necessary to produce the marking area and the non-marking area separately from each other and to connect them in a different manner, for example by sewing.
- the marking area and the non-marking area differ for example by a color, a color pattern, a texture of the surface of the textile composite, by the respective type of binding of the marking area and the non-marking area and / or by the respective nature of the threads used (in particular the number, the density, the color and / or extensibility of the threads).
- the marking region is or comprises a fabric-bonded fabric (especially with elastic yarns) or another high-elasticity fabric (for example a tethered bond) and / or if the non-marking region is a half-hose weave or other low-dual-elasticity weave (e.g., right-right weave without elastic thread, jacquard weave, Milano-rib weave).
- a high extensibility of the marking area can be achieved, for example, by using elastically extensible knitting threads on the stretching area.
- the referencing body is made of a rubber material, in particular an elastomer.
- the pattern at the marking area is directed to the referencing device. body is applied, for example by printing, impressing, molding or sticking.
- the referencing device is designed as a bandage or includes one that can be transferred from an opened release state into a self-closed application state, wherein the attachment device has one or more fixing elements for fixing the bandage in the applied state.
- the referencing body may form a portion of the bandage, to which, for example, fixing elements of the fastening device are fastened, with which the bandage can be fixed in the closed, annular application state.
- the fixing elements comprise, for example, a strap, a loop or an eyelet through which the strap can be passed in order to tighten the bandage or a buckle for the same purpose.
- Other examples of fixing elements are push buttons, a hook and loop fastener or an adhesive layer, for example, to fix the belt in itself.
- An advantageous implementation comprises a belt and a loop, so that the bandage can be applied tightly to the body part, in particular the femur, while stretching the referencing body.
- the bandage may comprise stiffening elements which are arranged on opposite sides of the referencing body.
- the stiffening elements can ensure that the referencing body does not taper when tightened.
- the length of the bandage in the applied state for a positive fit on the body part is customizable.
- fixing elements of the fastening device in the form of a belt and a loop for passing the belt cooperate.
- the belt can be fixed in itself, for example by means of a hook and loop fastener.
- the referencing device is designed as a self-contained hose bandage or includes such.
- the hose bandage which is completely or partially is formed by Referenzierungs redesign can be expanded under stretching and striped over the body part. This makes it possible to fix the hose bandage positively on the body part and to compress this.
- the bandage is preferably a thigh bandage.
- the thigh bandage may have at one edge a recess into which the patella or overlying soft tissue can engage. This makes it possible to align the thigh bandage in a defined manner relative to the body part, here the femur.
- a portion lower deformability of the thigh bandage may be arranged, for.
- the above-mentioned non-marking area This section may be positioned with the bandage applied above the tendon of the quadriceps muscle. The movement within the referencing body above the tendon of the quadriceps muscle is small, and movement within the bandage can be minimized.
- the marking region is preferably arranged near the recess, in particular above the tendon of the quadriceps muscle.
- the referencing body comprises friction enhancement elements on its side facing the body part.
- the coefficient of friction increase elements can be arranged unevenly on the referencing body.
- Soft tissue parts can be additionally tightened via the friction enhancement elements. This proves to be particularly advantageous in one of the aforementioned bandages.
- the referencing device can additionally be stabilized on the body part in the region of the coefficient of friction enhancement without producing a tourniquet on the body part even in the case of a tightly applied referencing device.
- the Reibwertseigerungsetti are preferably made of a silicone material or may include such.
- the Reibwertsmü mecanics institute may have different shapes and / or different sizes.
- the Reibwertsmü réelles may point-like, for example, approximately pinhead sized.
- At least one thread may be provided as a coefficient of increase in the coefficient of friction, which thread is incorporated in the aforementioned textile composite, for example knitted into a knitted fabric.
- the thread consists for example of a silicone material.
- friction enhancement elements are provided along at least one edge or parallel to an edge of the referencing body.
- friction increase elements can be arranged on the edge of the referencing body.
- friction increase elements are provided on two mutually opposite mutually parallel edges of the referencing body.
- friction increase elements are provided on opposite edges of the bandage along their circumferential direction.
- the referencing body is therefore less affected by the skin than a section provided with coefficient of friction enhancement elements.
- the section without friction enhancement elements can thereby prove to be so spatially stable on the thigh that the marking area with the pattern near or in the region of this section can be used for a valid reference to the femur bone. Even with an extension and flexion of the leg, the pattern can maintain the position relative to the femur bone and remain free of deformation, which can be detected by the navigation system.
- the invention also relates to a navigation system.
- the object of the present invention is to provide a generic navigation system with which a referencing device of the aforementioned type can be tracked in space.
- the referencing device is a referencing device of the aforementioned type and that the data processing device is designed and programmed so that it recognizes at least a portion of the pattern in going back to the Markier Scheme signal components of the image signals and evaluates whether it is time-dependent undeformed or substantially undeformed and, if so, it views this as a reference for tracking the referencing device in space.
- the navigation system can manage without a marking device in the conventional sense in the form of a so-called "rigid body".
- the image signals are analyzed by the data processing device as to whether at least a portion of the pattern can be recognized that does not change over time. To distinguish this is a time-dependent change of the image signals of the portion of the pattern due to a movement of the body part in space. If the data processing device determines that at least a portion of the pattern is undeformed or substantially undeformed, it may view that portion as a reference for tracking the referencing device, and thus the body part, in space.
- the data processing device is preferably designed and programmed in such a way that it examines the image signals with methods of color value recognition (also includes gray value recognition) and / or pattern recognition and / or scene analysis and / or finite element calculation.
- information relating to the pattern is stored in a memory unit of the navigation system and that the data processing device is designed and programmed such that it compares the image signals with the information and bases these on the determination of the signal components attributable to the marking region. Based on the information, the data processing device can identify signal portions of the marking area and recognize at least a portion of the pattern as time-dependent undeformed or substantially undeformed. The position and / or orientation of the pattern in the room can be determined thereby.
- the invention relates to a method.
- a navigation system of the aforementioned type is used, wherein the detection device generates images of the referencing device and provides image signals relating thereto in which the data processing device recognizes at least a portion of the pattern in signal portions of the image signals going back to the marking area and assesses whether it is time-dependent undeformed or essentially undeformed and, if so, views it as a reference for tracking the referencing device in space.
- FIG. 1 shows a perspective view of a navigation system according to the invention, comprising a referencing device according to the invention fixed on a patient;
- FIG. 2 shows a plan view of a first side of the referencing device of FIG. 1 configured as a bandage
- Figure 3 is a plan view of a second side of the referencing device opposite the first side;
- Figure 4 is an enlarged view of a detail of the referencing device showing a cutout of a knit
- Figure 5 the detail of Figure 4 at a force on the fabric
- FIG. 6 the referencing device from FIG. 1 during a flexion of the
- FIG. 7 shows a plan view of a further embodiment of a referencing device
- FIG. 8 shows a plan view of a further embodiment of a referencing device
- FIG. 9 shows a plan view of a further embodiment of a referencing device.
- FIG. 1 shows a perspective view of an advantageous embodiment of a navigation system 10 according to the invention and a patient 14 lying on a couch 12 and having a femur (in the present case a thigh) 16.
- the navigation system 10 comprises an advantageous embodiment of a referencing device according to the invention, designated by the reference numeral 18.
- the referencing device 18 has a fastening device 20 (FIG. 2), by means of which it can be fixed noninvasively to the femur 16.
- the referencing device 18 also moves.
- a movement can be detected by a detection device 22 of the navigation system 10.
- the detection device 22 may comprise a camera.
- the camera is shown as a stereo camera 24.
- Image signals of the detection device 22 can be transmitted to a data processing device 26.
- the data processing device 26 determines based on the image signals how the referencing device 18 and thus the femur 16 moves in space. This will be discussed below.
- the navigation system 10 further has a display device 28 coupled to the data processing device 26, as well as a memory unit 30 that is integrated into the data processing device 26.
- the navigation system 10 with the referencing device 18 can be used, for example, for navigation-assisted implantation of an artificial knee joint.
- a preoperative, intraoperative and postoperative use of the referencing device 18 in a patient-friendly manner is possible in particular.
- the referencing device 18 is designed as a bandage 32, in particular as a compression bandage.
- the bandage 32 comprises a reference body 38 which extends in two extension directions 34, 36 which are aligned transversely to one another.
- the referencing body 38 is variable in shape and can be adapted to the contour of the femur 16 when the bandage 32 is applied.
- the referencing body 38 like the bandage 32 as a whole, can be applied in a form-fitting manner to the femur 16 and surround it.
- the extension direction 34 extends in the circumferential direction of the femur 16 and the extension direction 36 in the longitudinal direction of the femur 16.
- the referencing body 38 has a substantially rectangular shape in plan view with two parallel longitudinal sides 40, 41 in the extension direction 34 and transverse sides 42, 43 in the extension direction 36.
- the longitudinal side 41 comprises at its central portion an arcuate curve 44, so that at the edge of the referencing body 38 in the region of the curvature 44, a recess 46 is arranged.
- the referencing body 38 in the present case is a textiiverbund 48, designed as a knit.
- the referencing body 38 and thus the bandage 32 can be manufactured in a simple, cost-effective and versatile manner.
- the textile composite 48 has two areas of different bonding, whereby the referencing body 38, due to the different bonding and the threads used, partially comprises different properties.
- the textile composite 48 is such that the referencing body 38 is elastically extensible in the surface of its extension in the extension direction 34 and in the extension direction 36.
- the referencing body 38 can be stretched thereby to compress the femur 16, which will be discussed below.
- the textile composite 48 comprises two regions, namely a marking region 50 and a non-marking region 52.
- the marking region 50 and the non-marking region 52 are integrally formed into the textile composite 48 by knitting and in one operation.
- the textile composite 48 differs in its nature at the marking region 50 from its nature at the non-marking region 52. In other words, the marking region 50 and the non-marking region 52 differ from each other in the nature of the textile composite 48.
- the marking region 50 has a substantially rectangular shape.
- the marking area 50 is located in the center of the referencing body 38 and is surrounded by the non-marking area 52.
- the non-marking area 52 encloses the marking area 50 and forms an edge for it.
- the non-marking region 52 forms the longitudinal sides 40, 41 and the transverse sides 42, 43.
- the marking region 50 is a knit fabric with high two-ball elasticity, for example with body weave, which in particular has elastic knit threads.
- the non-marking region 52 is a half-hose weave with lower elastic threads.
- the areas 50, 52 may preferably differ not only in the type of binding and the elasticity of the threads used.
- the areas 50, 52 may also be made of threads of different colors. Image signals of the regions 50 and 52 can thereby be separated from the data processing device 26 in a simple manner.
- the marking region 50 is knitted so that its type of weave and / or the nature and / or in particular the color of the threads used for the production form a pattern 54.
- the pattern 54 is thereby integrally incorporated into the referencing body 38 by the knitting method. In a laid-flat condition, the pattern 54 is uniform over the entire marking area 50. Preferably, the pattern 54 is regular.
- the marking area 50 is distorted, there may be portions thereof where the pattern is distorted and appears different. In contrast, at least one portion may be provided in which the pattern 54 appears undistorted or substantially undistorted. In the present case, this is regarded as an "undeformed” or “substantially undeformed” pattern. This also applies to the intended use of the bandage 32, in which the referencing body 38 is deformed when it rests on the femur 16 and assumes its contour.
- the pattern 54 can be at least partially free or substantially free of deformation and be recognizable to the navigation system 10 in a manner as if the referencing body 38 would assume a flattened state.
- the non-marking area 52 can also be patterned by the type of binding, the nature and the color of the threads used. sen, this differs in this case from the pattern 54 of the marking region 50. For example, due to the different types of bonding of the textile composite 48 at the regions 50, 52, a different pattern of the same results due to different surface textures.
- FIGS 2 and 3 show schematically the bandage 32 in plan view of a first side (hereinafter top 56) and a second side (below bottom 58).
- top 56 first side
- second side second side
- the bottom 58 faces the femur 16 and the top 56th turned away from the femur 16.
- the referencing body 38 comprises a plurality of coefficient of friction enhancement elements 60 (in the following, simplifying friction elements 60).
- the friction elements 60 are present punctiform and, for example, approximately pinhead size.
- the friction elements 60 are made of a silicone material.
- the referencing body 38 comprises friction elements 60.
- the friction elements 60 extend in a double-row parallel to the longitudinal side 40 and are uniformly spaced from one another.
- the friction elements 60 extend over almost the entire length of the referencing body 38 and are arranged on both regions 50, 52.
- the referencing body 38 comprises a first section 62 and a second section 64 each with friction elements 60 and an intermediate section 66 which is free of friction elements 60.
- the section 62 is in the extension direction 34 between the Recess 46 and the transverse side 42 and the portion 64 between the recess 46 and the transverse side 43.
- the portion 66 extends over slightly more than the length of the recess 46 in the middle of the Referenz réelles stresses 38.
- 64 durably fen the friction elements 60 double row parallel to the longitudinal side 41 and are each arranged equidistantly from each other on the referencing body 38.
- the friction elements 60 make it possible to locally increase the friction between the bandage 32 and the femur 16. In the region of section 66, the friction is deliberately kept low.
- the bandage 32 is a size-adjustable bandage, which can be converted from an open release state illustrated in FIGS. 2 and 3 into a contact state in which the bandage is self-contained (FIGS. 1 and 6).
- the fastening device 20 comprises fixing elements, namely a belt 68 and an eyelet 70 cooperating therewith.
- the belt 68 is fixed on the transverse side 42 via a stiffening element 72 and extends along the direction of extent 34.
- the stiffening element 72 comprises, for example, a fabric tunnel with a coil spring or strip, for example made of plastic, arranged therein. Near the transverse side 42, a fixing element of the fastening device 20 is provided in the form of a Velcro strip 74 to which the belt 68 can be adhesively secured in itself closed.
- the eyelet 70 is fastened to one side of a fixing element of the fastening device 20 in the form of a holding section 76.
- the holding section 76 is connected to the referencing body 38 on the opposite side of the eyelet 70 via a stiffening element 78 on the transverse side 43.
- the stiffening element 78 corresponds in shape and function to the stiffening element 72.
- the underside 58 is patient-friendly non-invasively positioned on the skin.
- the bandage 32 is stretched in the extension direction 34, against the elasticity of the regions 50, 52.
- the bandage 32 is preferably positioned on the femur 16 so that soft tissue above the patella 80 in the recess 46 engages (with the leg extended). If the soft-tissue tissue above the patella 80 engages in the recess 46, the marking region 50 is arranged, in particular in the region of the section 66, free of friction elements 60 above the tendon of the quadriceps muscle of the femur 16.
- the bandage 32 In the applied state, the bandage 32 is fixed by the fact that the belt 68 is guided by tightening the bandage 32 through the eyelet 70 and is secured in the Velcro 74.
- the stiffening elements 72, 78 ensure that the bandage 32 maintains its shape in the direction of extent 34 and that the referencing body 38 does not taper due to the tightening.
- the bandage 32 and thus the referencing device 18 can be fixed on the femur 16 in a patient-friendly and handling-friendly manner in a non-invasive manner.
- the bandage 32 compresses the femur 16. Movements of soft tissue relative to one another and relative to the femur are thereby restricted. As a result, the ability of the bandage 32 to move relative to the femur 16 and especially to the femur bone also decreases.
- Occurring relative movements of soft tissue can also be largely absorbed within the referencing body 38.
- the production of the referencing body 38 proves to be particularly advantageous as a knitted fabric with the regions 50, 52 which differ in terms of their extensibility in at least one of the extension directions 34, 36.
- the regions 50, 52 are knitted so that movements within the femur 16 are absorbed by the referencing body 38 to a large extent.
- a particularly small movement takes place within the referencing body 38.
- the friction elements 60 and their arrangement on the referencing body 38, via the targeted compression of the femur 16, improve the property of the bandage 32 to initiate movements in the referencing body 38 38 in a targeted manner.
- FIGS. 4 and 5 illustrate, by way of example, how the textile composite 48 can deform under the action of a force symbolized by an arrow 82.
- a force can be exerted by the femur 16 on the textile composite 48 when relative movements of soft tissue result, in particular during a movement of the femur 16 in space, flexion or extension of the leg.
- the textile composite 48 can deform while changing the surface condition. In particular, this can lead to a deformation of the pattern 54 at the marking region 50. Conversely, in the absence of the force 82, a deformation of the pattern 54 can be omitted.
- a force which deforms the pattern 54 can be kept small, in particular at the marking region 50 in the region of the section 66. Because no friction elements 60 are present at the portion 66, the friction between the femur 16 and the bandage 32 is kept locally low. For example, the skin rubs on the portion 66 during extension and flexion of the leg only to a small extent on the referencing body 38, so that it is not detected by a soft tissue displacement or only to a limited extent.
- the force on the marking region 50 is low.
- the movement of the marking region 50 and thus the deformation of the pattern 54 is also low in this area. This is also due to the relatively low relative mobility of the tendon of the quadriceps muscle to other soft tissue and other muscles in the femur 16.
- FIG. 6 symbolizes, as in the case of a flexion of the leg, a section 84 of the pattern 54 which is arranged on the section 66. is not or only to a small extent with a deforming force is applied. In the region of the section 84, the pattern 54 is thereby deformed, or only to a small extent.
- the portion 84 can thereby form a valid reference, the position of which can be maintained relative to the femur bone during movement of the leg in space, extension and flexion of the leg.
- the pattern 54 on the section 84 is undeformed and can be used as a valid reference, the pattern 54 is deformed on a section 86.
- the section 86 is arranged at the edge of the marking region 50 parallel to the transverse side 42 facing the non-marking region 52. Due to the introduction of the deformation forces 82 into the marking area 50, the latter is stretched there in such a way that the pattern 54 is distorted and differs from its shape when the bandage 32 is laid flat.
- the detection device 22 creates images of the referencing device 18 and provides the data processing device 26 with relevant image signals.
- the data processing device 26 is designed and programmed such that it ascertains signal portions originating from the marking region 50. This can be done, for example, due to the colored design of the marking region 50. For example, signal amounts of the non-marking area 52 are separated from signal amounts of the marking area 50 due to the different nature of the textile composite 46 as mentioned above.
- the data processing device 26 can detect whether at least a portion of the pattern 54 is time-dependent undeformed or substantially undeformed. This does not refer to the images of the referencing device which change during a movement, but to the shape of the pattern 54 at successive points in time, between which the femur 16 with the referencing precursor direction 18 in the room is moved. In the present case, the data processing device 26 can recognize, for example, the section 84 as being time-dependent substantially undeformed. The data processing device 26 may thereby view the section 84 as a valid reference for tracking the referencing device 18 and thus the femur 16 in space. This also makes it possible to deduce the position and / or orientation of the femoral bone in the room.
- information regarding the pattern 54 may be stored.
- the information includes statements about the surface condition of the marking area 50, a color and / or a color pattern.
- the data processing device 26 can fall back on the information stored in the memory unit 30, compare the image signals with the information and base the information in the determination of the signal components going back to the marking region 50.
- the navigation system 10 and the referencing device 18 offer the great advantage that a non-invasive reference to the patient 14 can be provided preoperatively, intraoperatively, and postoperatively.
- the navigation system 10 comes without medical marking device in the form of a so-called "Rigid Bodies", which is commonly used in medical navigation. This not only proves to be more patient-friendly, but also more user-friendly for the surgeon.
- a referencing device may be used instead of the referencing device 18 or together with it in the navigation system 10.
- the functions, effects and advantages already mentioned in connection with the referencing device 18 can also be achieved with the referencing devices mentioned below, so that reference can be made to the above explanations.
- the referencing body 38 is likewise embodied as a textile composite 48, in particular as a knitted fabric.
- the referencing device 100 comprises a marking region 102 corresponding to the marking region 50 and a non-marking region 104 corresponding to the non-marking region 52. These are integrally incorporated into the textile composite 48 and differ in their nature from each other.
- the marking region 102 forms the pattern 54.
- the marking region 102 has a contour that is waisted in a plan view of the referencing body 38, with a widening section 106 and a widening section 108 facing the longitudinal sides 40 and 41, respectively.
- the widening sections 106, 108 are connected to one another via a narrowing section 110.
- the non-marking area 104 surrounds and forms an edge for the marking area 102, as is the case with the referencing device 18.
- a referencing device 120 shown in FIG. 8 comprises a referencing body 38 configured as a textile composite 48.
- a marking region 122 is provided which forms the referencing body 38.
- a non-marking area does not exist.
- the marking area 122 forms the pattern 54.
- FIG. 9 shows in plan view a referencing device 130 whose referencing body is made of a rubber material, in particular an elastomer.
- the referencing body 38 is elastically extensible in the extension directions 34, 36, wherein the extensibility in the extension direction 34 is greater than in the extension direction 36.
- the referencing body 38 has a marking area 132 that is surrounded by a non-marking area 134.
- the regions 132, 134 are integrally incorporated into the referencing body 38.
- the shape of the areas 132, 134 and their arrangement on referencing body 38 correspond to those of the areas 50, 52 in the referencing device 18.
- a pattern 136 is provided at the marking area 132.
- the pattern 136 is integrally incorporated into the marking area 132, for example, by molding. Also conceivable is embossing or printing of the marking region 132.
- the pattern 136 is regular.
- the pattern 136 preferably has a two-dimensional grid or net shape.
- movements of soft tissue can be introduced into the referencing body 38 relative to one another such that the pattern 136 remains undeformed or substantially undeformed at least in sections.
- the data processing device 26 can recognize this section and view it as a valid reference for the tracking of the referencing device 130 in space.
- the referencing devices 100, 120 and 130 also have friction elements 60 for specific introduction of forces into the respective referencing body 38 on the respective underside 58, as was explained using the referencing device 18 as an example.
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Robotics (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014104802.4A DE102014104802A1 (de) | 2014-04-03 | 2014-04-03 | Medizinische Referenzierungsvorrichtung, medizinisches Navigationssystem und Verfahren |
| PCT/EP2015/056393 WO2015150187A1 (de) | 2014-04-03 | 2015-03-25 | Flexible medizinische referenzvorrichtung, medizinisches navigationssystem und verfahren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3125783A1 true EP3125783A1 (de) | 2017-02-08 |
Family
ID=52779631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15713163.2A Withdrawn EP3125783A1 (de) | 2014-04-03 | 2015-03-25 | Flexible medizinische referenzvorrichtung, medizinisches navigationssystem und verfahren |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20170202634A1 (de) |
| EP (1) | EP3125783A1 (de) |
| JP (1) | JP6576359B2 (de) |
| CN (1) | CN106132348B (de) |
| DE (1) | DE102014104802A1 (de) |
| WO (1) | WO2015150187A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014104800A1 (de) * | 2014-04-03 | 2015-10-08 | Aesculap Ag | Medizinische Befestigungseinrichtung sowie Referenzierungsvorrichtung und medizinisches Instrumentarium |
| DE102018105834A1 (de) * | 2018-03-14 | 2019-09-19 | Aesculap Ag | Medizintechnisches System und Verfahren zum nichtinvasiven Tracken eines Objektes |
| CN109009436B (zh) * | 2018-08-24 | 2023-11-10 | 真健康(北京)医疗科技有限公司 | 一种用于红外导航的体表定位设备 |
| CN114052724B (zh) * | 2022-01-13 | 2022-09-09 | 西安交通大学医学院第一附属医院 | 基于人工智能的骨科牵引异常检测系统 |
| US12467489B2 (en) | 2022-03-17 | 2025-11-11 | Mako Surgical Corp. | Techniques for securing together components of one or more surgical carts |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001080738A1 (en) * | 2000-04-21 | 2001-11-01 | Webb Lawrence X | Surgical targeting system |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7326227B2 (en) * | 2001-02-28 | 2008-02-05 | Richard G. Dedo | Tourniquet padding |
| US7869861B2 (en) * | 2002-10-25 | 2011-01-11 | Howmedica Leibinger Inc. | Flexible tracking article and method of using the same |
| US7209776B2 (en) * | 2002-12-03 | 2007-04-24 | Aesculap Ag & Co. Kg | Method of determining the position of the articular point of a joint |
| US9867669B2 (en) * | 2008-12-31 | 2018-01-16 | Intuitive Surgical Operations, Inc. | Configuration marker design and detection for instrument tracking |
| US8108025B2 (en) * | 2007-04-24 | 2012-01-31 | Medtronic, Inc. | Flexible array for use in navigated surgery |
| EP2164419A1 (de) * | 2007-11-08 | 2010-03-24 | Orthosoft, Inc. | Verfolgbare referenzvorrichtung für computerunterstützte chirurgie |
| US20090124949A1 (en) * | 2007-11-12 | 2009-05-14 | Uriel Rosen | Versatile medical article |
| EP2252230A1 (de) * | 2008-03-13 | 2010-11-24 | Orthosoft, Inc. | Cas-verfolgungssystem |
| DE102008052860B4 (de) * | 2008-10-23 | 2011-01-05 | Otto Bock Healthcare Gmbh | Gelenkbandage |
| CA3228582A1 (en) * | 2012-03-07 | 2013-09-12 | Ziteo, Inc. | Methods and systems for tracking and guiding sensors and instruments |
| WO2014009967A1 (en) * | 2012-07-10 | 2014-01-16 | Agarwal Ghansham Das | A novel device for extremely marking the location of organs on skin during a cat scan |
| WO2015024600A1 (en) * | 2013-08-23 | 2015-02-26 | Stryker Leibinger Gmbh & Co. Kg | Computer-implemented technique for determining a coordinate transformation for surgical navigation |
-
2014
- 2014-04-03 DE DE102014104802.4A patent/DE102014104802A1/de not_active Withdrawn
-
2015
- 2015-03-25 EP EP15713163.2A patent/EP3125783A1/de not_active Withdrawn
- 2015-03-25 CN CN201580018175.8A patent/CN106132348B/zh not_active Expired - Fee Related
- 2015-03-25 WO PCT/EP2015/056393 patent/WO2015150187A1/de not_active Ceased
- 2015-03-25 JP JP2016559837A patent/JP6576359B2/ja not_active Expired - Fee Related
-
2016
- 2016-09-28 US US15/278,174 patent/US20170202634A1/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001080738A1 (en) * | 2000-04-21 | 2001-11-01 | Webb Lawrence X | Surgical targeting system |
Also Published As
| Publication number | Publication date |
|---|---|
| US20170202634A1 (en) | 2017-07-20 |
| WO2015150187A1 (de) | 2015-10-08 |
| CN106132348A (zh) | 2016-11-16 |
| JP6576359B2 (ja) | 2019-09-18 |
| CN106132348B (zh) | 2020-01-03 |
| DE102014104802A1 (de) | 2015-10-08 |
| JP2017514557A (ja) | 2017-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3125805B1 (de) | Medizinische befestigungseinrichtung sowie referenzierungsvorrichtung und medizinisches instrumentarium | |
| EP3182938B1 (de) | Rücken- oder beckenbandage | |
| EP3125783A1 (de) | Flexible medizinische referenzvorrichtung, medizinisches navigationssystem und verfahren | |
| EP2568930B1 (de) | Orthese und herstellungsverfahren | |
| EP3251641B1 (de) | Kompressionsartikel | |
| DE102018132640B4 (de) | Elastisches Flächenmaterial, Bandage daraus und Verfahren zu dessen Herstellung | |
| EP0600218B1 (de) | Bandage für das Kniegelenk | |
| DE102013001732A1 (de) | Trägermittel zum Ankoppeln von zumindest einer Leit-Stütz-Struktur an einem Lebewesen | |
| EP1933794B1 (de) | Kompressionsbandage | |
| DE102017117786A1 (de) | Schuh zum Dämpfen einer Fußbewegung über das Sprunggelenk | |
| DE19824649C2 (de) | Gelenkbandage | |
| DE202024102521U1 (de) | Hüftorthese zur Mobilisierung eines Hüftgelenks | |
| DE102005062477B4 (de) | Orthopädisches Hilfsmittel | |
| CH701272A2 (de) | Orthese. | |
| EP3381423B1 (de) | Manschette zur orthetischen behandlung | |
| DE102017101042A1 (de) | Kompressionstextil zur postoperativen Kompressionsbehandlung einer Körperextremität | |
| DE9316342U1 (de) | Bandage für das Kniegelenk | |
| CH716437B1 (de) | Medizinisches Gestrickteil und Verfahren zur Herstellung eines solchen Gestrickteils. | |
| DE29809884U1 (de) | Gelenkbandage | |
| EP3831994B1 (de) | Gestrickteil | |
| DE4106883A1 (de) | Schultergelenk-bandage | |
| EP4574103A1 (de) | Sprunggelenkorthese | |
| DE102021104459A1 (de) | Stabilisierende Orthese zum Anlegen an eine menschliche Gliedmaße | |
| DE102023136621A1 (de) | Medizinisches Bekleidungsstück | |
| AT525012A2 (de) | Kompressionstextil mit integrierter An- und Ausziehhilfe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20160916 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20190531 |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: A61B 17/132 20060101AFI20210209BHEP Ipc: A61B 90/00 20160101ALI20210209BHEP Ipc: A61B 34/20 20160101ALI20210209BHEP |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: A61B 90/00 20160101AFI20210222BHEP |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| INTG | Intention to grant announced |
Effective date: 20210420 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20210831 |