HU214568B - Tool Kit transposition into osteochondral grafts mosaic technique - Google Patents

Tool Kit transposition into osteochondral grafts mosaic technique Download PDF

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Publication number
HU214568B
HU214568B HU9402663A HU9402663A HU214568B HU 214568 B HU214568 B HU 214568B HU 9402663 A HU9402663 A HU 9402663A HU 9402663 A HU9402663 A HU 9402663A HU 214568 B HU214568 B HU 214568B
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HU
Hungary
Prior art keywords
diameter
drill
graft
mm
characterized
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HU9402663A
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Hungarian (hu)
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HUT76105A (en
HU9402663D0 (en
Inventor
Ferenc Blaskovics
László Hangody
István Kotormán
Zoltán Kárpáti
Original Assignee
METRIMED Orvosi Műszergyártó Kft.
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Priority to HU9402663A priority Critical patent/HU214568B/en
Publication of HU9402663D0 publication Critical patent/HU9402663D0/en
Publication of HUT76105A publication Critical patent/HUT76105A/en
Publication of HU214568B publication Critical patent/HU214568B/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4618Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of cartilage
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1604Chisels; Rongeurs; Punches; Stamps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1637Hollow drills or saws producing a curved cut, e.g. cylindrical
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1662Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
    • A61B17/1675Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the knee
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4601Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30756Cartilage endoprostheses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/38Joints for elbows or knees
    • A61F2/3859Femoral components
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/28Bones
    • A61F2002/2835Bone graft implants for filling a bony defect or an endoprosthesis cavity
    • A61F2002/2839Bone plugs or bone graft dowels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108Shapes
    • A61F2002/30199Three-dimensional shapes
    • A61F2002/30224Three-dimensional shapes cylindrical
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4619Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof for extraction
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4625Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
    • A61F2002/4627Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4644Preparation of bone graft, bone plugs or bone dowels, e.g. grinding or milling bone material
    • A61F2002/4649Bone graft or bone dowel harvest sites
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0069Three-dimensional shapes cylindrical

Abstract

The instrument set according to the invention comprises at least one drill (11) and a grafting machine (3), from which the graft receiver (3) may be a pile knife, the inside diameter (d) of which on a blade is the nominal diameter (D) of the drill (11) and at least 3 of the cutting edge. mm smaller than or less than hornbeam, with an internal diameter equal to the nominal diameter of the drill (11) and a portion of the main bore outward. At the end of the drill bits (11) there is a tapered section of at least 10 mm helix, and the retaining needles are preferably formed as a drill bit (14) in the form of a plate or disc in which the diameter of the drill bits having a diameter corresponding to the annual diameter (D) of the drill bits (11) is in the form of a shroud, with a heat connection of 0.5. - a minimum wall thickness of 1.5 mm, preferably 1 mm. In addition, the finished bead can be provided with a graft socket (8) and sleeve, and the mandrel (8) has an outer diameter and a sleeve inner diameter less than one of the nominal diameters of the drills (11). ŕ

Description

Scope of description 8 pages (including 4 pages)

EN 214 568

A set of instruments for transmitting mechatronic grafts by mosaic technique comprising at least one drill and grafting device.

One of the most common problems with daily orthopedic and accidental surgery is solving knee joint cartilage damage. In the case of damage of any origin of joint sliding surfaces, replacement of the original cartilage surface by known methods can only be replaced by a reduced value. Taking into account the age of the patients most frequently affected by such a disease, these injuries result in a reduction in the capacity of the majority of the population, or possibly a disability.

The replacements were initially resolved by transplanting the pieces of the size corresponding to the damage, but this did not change in practice. During surgery, too large pieces had to be removed from the healthy cartilage surface, causing significant discomfort to the patient, the fit of the removed cartilage surface and the cavity at the site of implantation were imperfect, which resulted in the replacement of both the original and the original surface so that the movement of the joint was not correct. it was not equivalent to the previous one, and on the other hand, too big differences hindered the process of bone grafting.

Several attempts have been made to regenerate the joints of the joints using bone cylinders taken from other, less important, joints of the body. Such solutions are written by dr. László Hangody and dr. Zoltán Kárpáti „A New Opportunity for Surgical Treatment of Serious Circumcision of Knee Joint Disorder” (Hungarian Traumatology, Orthopedics, Hand Surgery, Plastic Surgery, 1994, p. 237-243) or Hangody, Carpathian, Tóth, Diószegi, Kendik and Bay “Osteochondral Autograft Transplantation Knee Joint on the load surface and in the patellofeboral joint in dogs ”(Sporting Medical Review, 1994/35/2, pp. 117-123.) c. Article. In the described procedures, replacement was performed with cartilage bone cylinders (osteocondral grafts) obtained from the periphery of the femoral artery surface of the femur.

Based on the experiments and the first results, it became evident that the replacement with the bone rolls was significantly better than the previous solutions, but its implementation would require a special and precise set of instruments, which was not yet available.

The present invention therefore aims to provide a set of instruments for the transplantation of osteocondral grafts, i.e. cartilage bone cylinders, using mosaic technique, which allows

- safe retrieval of transplants by leaving as little defect as possible,

- ensuring the integrity of the removed bone cylinders,

- precise design and, where appropriate, standardization of the transplantation site,

- performing the intervention without exploration, using the covered technique (arthroscopically) and

- normal sterilization.

The object of the present invention is to provide a tool kit comprising at least one drill and at least one grafting device, wherein the grafting device according to the invention may be a punch having an internal diameter of one section equal to the nominal diameter of the drill and at least 3 mm from the cutting edge. .

In a second embodiment, the kit comprises a crown wound as a grafting machine having an internal diameter equal to the nominal diameter of the drill and a portion of the teeth on the crown, preferably every second tooth, is bent outward.

The drill or drill bits used in the kit are designed to have an initial section of at least 10 mm long, conical. The conicity is preferably reduced to a diameter smaller than about 0.5 mm from the original nominal diameter at the tip of the drill.

Of course, the kit generally comprises a plurality of drills of different diameters and a grafting machine of the same inner diameter. Suitably, the kit also includes a handle-shaped, sheet or disk-shaped quilting template, in which guide holes of a nominal diameter corresponding to the drills are arranged such that a minimum wall thickness of 0.5 to 1.5 mm, preferably 1 mm, is provided between them. The clamping template is preferably provided with guide pins corresponding to the diameters of the guide holes.

The kit is also equipped with a graft press spike and sleeve. Their diameter is at least one section equal to the diameter of the drills. Suitably, there are inspection openings on the sleeve shell to allow inspection of the position of the bone cylinder.

The upper, preferably larger diameter section of the graphite takers have opposing radial holes having diameters of the inner diameter, i.e. the outer diameter of the drill, so as to accommodate the graft press spikes.

The kit according to the invention makes it possible to achieve an optimal joint sliding surface replacement technique by allowing the safe and minimal damage of bone cylinders of precise size and, in parallel, to ensure that the bone rollers are correctly, correctly fitted and reliably inserted into the injured joint.

As a result of accurate transplantation, the joints become equivalent to the original joint and the implants are safely incorporated in the long term.

However, the kit according to the invention is extremely simple, can be produced inexpensively, reliably operable and well sterilized.

Further details of the invention are illustrated by means of embodiments and drawings. It is in the drawing

Figure 1 shows an embodiment of a graft receiver according to the invention in section, in the first phase of grafting, a

Figure 2 is an enlarged drawing of the edge of the graft receiver; a

Figure 3 shows the graft receiver shown in Figures 1 and 2 after removal of the bone roller, a

Figure 4 is a perspective view of the first phase of grafting

Figure 5 is a perspective view of the second phase of grafting, a

Figure 6 is a sectional view of another embodiment of the graft receiver at the first step of grafting, a

Figure 7 shows the cutting edge of the grafting machine shown in Figure 6, a

EN 214 568

Fig. 8 is a graft receiver shown in Figures 6 and 7 in the second phase of reception, a

FIG. Figs

Figure 10 is a plan view of a portion of the drilling template according to the invention, a

Figure 11 is a side elevational view of the boring template shown in Figure 10, a

Figure 12 is a perspective view of the use of the device, a

Fig. 13 is a drawing of the drill used in the kit according to the invention, with a scrub pattern and a joint shown in the section after the hole is made;

Figure 14 is a sectional view of the first phase of implantation of the bone roller, a

Fig. 15 is a sectional view of the second phase of implantation of the bone roller;

Figure 16 is a perspective view of implantation.

1-5. 1 to 3 show one embodiment of the kit according to the invention. A bone roller is taken from the intact portion of the sliding surface 2 of the joint 1 by the graft receiver 3. In this embodiment, the graft receiver 3 is formed as a punch, accordingly with 4 stems at one end and 5 cutting edges at the other end. 1-3. Figures 2 and 3 show that the wall thickness of the graft receiver 3 in front of the cutter 5 is greater on a defined section 6, i.e., the punch is thickened in the circumference of the cutting edge 5, so that the diameter d of the bore 7 to be taken is smaller than the diameter D of the bone cylinder to be taken.

The bone cylinder 7 is recovered by grafting the graft 3 in the direction of the arrow shown in FIG. 1 into the intact part of the joint 1 (see FIG. 4), and then tearing the bone roller 7 in the direction of the arrow shown in FIG. For this purpose, the mandrel 8 shown in Figure 5 is used, the smallest section of which can be inserted into the radial holes in the casing 4 of the shank 4 of the graft receiver.

1-5. 1 to 3, the grafting section 6 of the graft 3 is approximately 4 mm long and the diameter of the narrowed internal d is 0.3 mm smaller than the additional inner diameter D. The set contains 3 graft receivers with different internal diameters D, 2.7, 3.5 and 4.5 mm. Preferably, the depth of the 3 graft-taking cuttings is approx. 15 mm. To denote this, the stem 4 has a larger outer diameter, and this larger diameter section starts at 15 mm from the cutting edge.

Refer to 6-9. 1 to 3 show another embodiment of the graft receiver 3. Here, the graft receiver 3 is configured as a crown drill with 9 teeth at the end. Part of the teeth 9, preferably each of the second teeth 9, is bent outwardly, so that the size of the left-over hole is larger than the diameter of the bone roll 7.

The engagement of the graft receiver 3 is carried out as shown in FIG. 9, by means of a connecting element 10, by means of a drilling machine, and can be withdrawn in the same manner as the graft receiver formed as a punch.

Preferably, the graft receiver formed as a crown bore can be used for hard bone surfaces.

10-13. 1 to 4 show the drill and boring template used in the kit according to the invention. All drill bits with a nominal diameter equal to the inside diameter of the 3 graft takers, i.e. the outer diameter D of the bone cylinder 7. At the tip, the bottom drill is provided with a taper section 12, about 12 mm in length as shown. The original nominal diameter decreases about 0.5 mm along the conical section 12. Thus, the end of the produced bore 13 will also be tapered to provide a tight fit of the bone rolls 7.

The holes 13 in the damaged part should preferably be made by means of a drilling template 14. Figures 11 and 12 show the bore 14 not only for guiding the drill 11, but also for ensuring that the holes 13 are optimally arranged. The guide holes 17 corresponding to the row of graft carriers and drill bits are arranged on the disk 15 of the quilt template 14 so as to ensure optimum utilization of the available surface and, at the same time, prevent the holes of the bore holes from being torn or drilled. Therefore, the minimum distance between the individual guide holes 17, i.e. the distance v between the guide holes 17 of the bore 14 is always at least 0.5 mm, preferably 1 mm.

Fig. 13 shows that by means of a boring template 14 adapted to the appropriate location, 18 pivot pins are inserted into the first holes which prevent the drilling template 14 from moving between the boreholes of the various holes.

14-16. 1 to 3 show the insertion of the bone cylinders 7 into the holes 13 by means of a mandrel 8 and a sleeve 19. The sleeve 19 is fitted to the sliding surface 2 of the joint 1 at the hole 13, and a bone roll 7 is inserted into the sleeve 19. The impression in the bore 13 is carried out by means of the mandrel 8 as shown in Figure 15. The position of the bone cylinder 7 can be checked through the openings 20 on the sleeve 19 of the sleeve. The insertion must be carried out so that the sliding surface on the bone cylinder 7 is in the same plane or surface as the sliding surface 2 of the joint 1.

During the implantation, the bone cylinders 7 fit tightly in the holes 13, since the lower part of the holes 13 is conical. This not only enhances stability but also promotes bone grafting.

It should be noted that the sequence of operations during the operation is different from that shown in the figures, first the holes in the injured part must be prepared and the bone rolls are removed and implanted.

Clinical examination of the kit according to the invention showed that the mosaic technique of autologous cartilage can be safely performed with very good results. The instruments are preferably made of corrosion-resistant steel, of sufficient quality and conform to standard sterilization conditions.

Graft collection in the transmitter area results in minimal damage and the integrity of the removed bone cylinders is ensured during the process.

The graft can be placed at the site of the injury very accurately and rationally with the help of the boring template, so that the hole placement can be practically standardized.

The device makes it possible to perform the intervention without exploration using a covered technique.

EN 214 568

Of course, the embodiments shown are merely illustrative of the invention, and the apparatus can be implemented in a number of other forms within the scope of the appended claims.

Claims (9)

  1. PATIENT INDIVIDUAL POINTS
    An instrument kit for transplanting osteocondral grafts with mosaic technique comprising at least one drill and graft recorder, wherein the graft receiver is a punch having a cutting edge (5) having an internal diameter (d) equal to the nominal diameter of the drill (11) in one section (D) and less than 3 mm from its cutting edge (5).
  2. A set of instruments for transplanting osteocondral grafts with mosaic technique, comprising at least one drill and graft carrier, comprising a crown drill with teeth (9) having an internal diameter equal to the nominal diameter of the drill (11) and a portion of the teeth (9). bent outwards.
  3. The instrument set according to claim 1 or 2, characterized in that at the end of the drill (11) there is a conical section (12) of at least 10 mm.
  4. 4. Referring to 1-3. A set of instruments according to any one of the preceding claims, characterized in that it comprises a plurality of drills (11) having different diameters and a graft receiver (3) having the same internal diameter.
  5. 5. A set of instruments according to any one of claims 1 to 3, characterized in that it comprises a quilt (14) provided with a handle (16) as a sheet or a disc (15), in which guide bores (17) having a diameter corresponding to the nominal diameter (D) of the drills (11) are arranged in such a manner that to have a minimum wall thickness (v) of 0.5-1.5 mm, preferably 1 mm.
  6. 6. Instrument set according to one of Claims 1 to 3, characterized in that it has a graft press spike (8) and a sleeve (19), and the inner diameter of the mandrel (8) and the sleeve (19) is at least one section equal to the nominal diameter of the drills (11).
  7. The instrument set according to claim 6, characterized in that the sleeve (19) has inspection apertures (20) on the cover.
  8. A set of instruments according to claim 6 or 7, characterized in that there are opposing radial holes in the upper section of the graft receivers (3) having the same diameter as the inside diameter of the graft receiver (3).
  9. An instrument kit according to claim 8, characterized in that it comprises guiding pins (18) having the same diameter as the guide holes (17) of the quilting template (14).
    EN 214 568
    Int Cl. 6 :
    EN 214 568
    Int Cl. 6 :
    EN 214 568
    Int Cl. 6 :
    EN 214 568
    Int Cl. 6 :
    Figure H
    Published by the Hungarian Patent Office, Budapest Responsible for release: Gyurcsekné Philipp Clarisse Head of Department Windor Bt., Budapest
HU9402663A 1994-09-16 1994-09-16 Tool Kit transposition into osteochondral grafts mosaic technique HU214568B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HU9402663A HU214568B (en) 1994-09-16 1994-09-16 Tool Kit transposition into osteochondral grafts mosaic technique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU9402663A HU214568B (en) 1994-09-16 1994-09-16 Tool Kit transposition into osteochondral grafts mosaic technique
DE1995103504 DE19503504A1 (en) 1994-09-16 1995-02-03 Instrument set for osteochondral transplant

Publications (3)

Publication Number Publication Date
HU9402663D0 HU9402663D0 (en) 1994-11-28
HUT76105A HUT76105A (en) 1997-06-30
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HU9402663A HU214568B (en) 1994-09-16 1994-09-16 Tool Kit transposition into osteochondral grafts mosaic technique

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HU9402663D0 (en) 1994-11-28
HUT76105A (en) 1997-06-30
DE19503504A1 (en) 1996-03-21

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