EP4225164A1 - Chirurgisches handinstrument der schaftbauart - Google Patents
Chirurgisches handinstrument der schaftbauartInfo
- Publication number
- EP4225164A1 EP4225164A1 EP21783282.3A EP21783282A EP4225164A1 EP 4225164 A1 EP4225164 A1 EP 4225164A1 EP 21783282 A EP21783282 A EP 21783282A EP 4225164 A1 EP4225164 A1 EP 4225164A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- groove
- longitudinal
- shaft
- slide
- shank
- 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
Links
- 238000004140 cleaning Methods 0.000 claims abstract description 71
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 230000007423 decrease Effects 0.000 claims description 5
- 239000012636 effector Substances 0.000 claims description 5
- 238000003801 milling Methods 0.000 description 16
- 210000000988 bone and bone Anatomy 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000001574 biopsy Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/1604—Chisels; Rongeurs; Punches; Stamps
- A61B17/1606—Chisels; Rongeurs; Punches; Stamps of forceps type, i.e. having two jaw elements moving relative to each other
- A61B17/1608—Chisels; Rongeurs; Punches; Stamps of forceps type, i.e. having two jaw elements moving relative to each other the two jaw elements being linked to two elongated shaft elements moving longitudinally relative to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/1604—Chisels; Rongeurs; Punches; Stamps
- A61B17/1606—Chisels; Rongeurs; Punches; Stamps of forceps type, i.e. having two jaw elements moving relative to each other
- A61B17/1608—Chisels; Rongeurs; Punches; Stamps of forceps type, i.e. having two jaw elements moving relative to each other the two jaw elements being linked to two elongated shaft elements moving longitudinally relative to each other
- A61B17/1611—Chisels; Rongeurs; Punches; Stamps of forceps type, i.e. having two jaw elements moving relative to each other the two jaw elements being linked to two elongated shaft elements moving longitudinally relative to each other the two jaw elements being integral with respective elongate shaft elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/06—Biopsy forceps, e.g. with cup-shaped jaws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/1604—Chisels; Rongeurs; Punches; Stamps
- A61B17/1606—Chisels; Rongeurs; Punches; Stamps of forceps type, i.e. having two jaw elements moving relative to each other
Definitions
- the present disclosure relates to a medical, in particular surgical, hand-held instrument with a sliding shaft/sliding-shaft instrument for transmitting an actuating force or movement to an instrument effector.
- the present disclosure relates to any type of surgical instrument that has a sliding shaft.
- a sliding shaft instrument can be, for example, biopsy forceps, scissors, bone punches or similar hand instruments. They are used, for example, to perform cutting, shearing or clamping interventions in the human or animal body.
- a slide is moved along a guide of a shaft using corresponding handles in order to actuate, in particular to open and close, a (mouth-like) effector at a distal end of the slide shaft.
- Such sliding-shaft instruments are characterized in that they have an elongate shaft/shaft that extends in the longitudinal direction, on/in which a slide is arranged so that it can be displaced in the longitudinal direction of the shaft.
- the slider and stem are typically slidably connected to each other via a guide located or formed on/in the stem which guides movement of the slider along the stem but prevents further relative movement of the slider relative to the stem.
- a surgical sliding-shaft instrument is known, for example, from EP 1 363 542 B1.
- DE 10 2009 008691 A1 discloses a sliding-shaft instrument with a longitudinal groove in the shaft that is T-shaped in cross-section, in which a correspondingly designed projection on the underside of the slide engages in a form-fitting manner.
- the sliding-shaft instrument In order to be able to reuse sliding-shaft instruments, the sliding-shaft instrument must at least be cleaned and/or often even sterilized.
- due to the close guidance of the slide on/in the shaft it has hitherto not been possible, or at least only with difficulty, to reprocess the slide shaft in a reproducible manner without first dismantling the instrument into its individual parts.
- the disassembly of a sliding shaft which generally has tight tolerances, means that the individual parts may be damaged during assembly, so that the sliding-shaft instrument can no longer meet the required tolerances, at least after a certain number of disassembly cycles. For this reason, sliding-shaft instruments and their sliding shafts are not normally dismantled for cleaning.
- a known sliding shaft has radial bores spaced over the entire length of the shaft, which create a space in the shaft accommodating the slide with the environment for better flushing of the slide with cleaning liquid or connect to a sterilization medium, which, however, significantly reduce the stability of the shaft and are complex to manufacture due to the large number of drill bits.
- the core of the disclosure is therefore to form the axially spaced contact/sliding points between the groove side wall of the shank and the slide, known per se from the prior art, essentially triangularly with concave side edge profiles in the shank longitudinal section and in the areas of the contact points formed in this way /contact/sliding points to form additional radial openings from the bottom of the groove to the bottom of the groove in the shank.
- each abutment/contact/sliding point can extend over a greater distance than in the prior art, preferably beyond the respective radial opening on both sides in the axial direction of the shank and thereby keep the shank stiffened despite the additional radial openings.
- the abutment/contact/sliding points taper very quickly in the axial direction, which improves flushing with cleaning fluid and/or sterilization medium and also allows the cleaning fluid and/or sterilization medium to penetrate into the gap between the bottom of the groove and the slide via the radial openings will.
- another core of the disclosure is to produce the axially spaced contact-Zcontact-ZGleitstellen by milling in/out grooves in the shape of circular segments from below the groove base to beyond the groove base using a shank Z circular milling cutter, which results in essentially rectangular openings on the result in a groove base and, in addition, a side edge of the triangular contact-ZG interface is formed concavely.
- the same milling cutter is used to mill from above the groove base into the shank/shank groove in such a way that the two side edges of the contact-ZG interface points facing away from the groove base also have the aforementioned concave shape.
- the medical, in particular surgical, hand-held instrument has a sliding shaft.
- the sliding shank has an elongate shank and a slide arranged thereon in a (longitudinally) displaceable manner, ie along the longitudinal direction of the shank.
- the sliding shaft serves to couple actuation of a tool head/tool section/effector of the sliding-shaft instrument with actuation of an instrument handle of the sliding-shaft instrument.
- the sliding shank is or can be connected in particular to the tool head arranged at a distal end of the sliding shank in such a way that the tool head can be actuated, in particular opened and closed, by the relative displacement of the slide relative to the shank.
- the sliding shaft is or can be connected in particular to the instrument handle in such a way that the slider can be longitudinally displaced relative to the shaft by actuating the instrument handle, for example by pivoting a first handle relative to a second handle.
- the slide is accommodated in a longitudinal groove of the shaft (longitudinally displaceable).
- the longitudinal groove is open to a peripheral side of the shank.
- the slide is preferably plate-shaped, for example as a sliding plate.
- the relative displacement of the slide relative to the shaft is guided by at least one web (abutment/contact/sliding point) of the shaft. The web narrows the longitudinal groove in the width direction in sections from both sides of the slide in order to guide the slide on both sides.
- the shank can have at least one pair of webs arranged opposite one another in the groove width direction for guiding the slide.
- the paired ridges are spaced from each other by a thickness of the slider in the groove width direction.
- the slider can rest slidingly on both sides of a web of a pair of webs.
- the slide is preferably arranged centrally in the longitudinal groove in the direction of the width of the groove.
- the shank has a cleaning recess (milled in/out) in the longitudinal direction in the area of the web (or the pair of webs), which forms a through hole (rectangular radial opening) opening into the longitudinal groove.
- the cleaning recess can in particular be open to a circumferential side of the shank facing away from the radial groove opening (hereinafter referred to as the underside).
- the cleaning recess is arranged in the longitudinal direction in the region of the web, that is to say in the longitudinal direction at the height of the web.
- the cleaning recess can be formed/milled in as a milling.
- a smoother surface can be produced and, for example, the formation of bones can be reduced.
- the cleaning recess is preferably arranged centrally in the shaft in the width direction.
- the cleaning recess is preferably elongate. In this way, as little material as possible is removed from the shaft in its more unstable width direction for the cleaning recess.
- the shank has a longitudinal groove in which the slide is arranged to be longitudinally displaceable and which widens in sections along the longitudinal direction in the width direction (through a gap) or narrows in sections in the width direction (through the web).
- the gap is accordingly narrowed or interrupted in sections in the longitudinal direction by the web.
- the longitudinal groove has a basic width that corresponds to a distance between two webs of a web pair or a thickness of the slide.
- the longitudinal groove has a greater width in sections along the longitudinal direction than the basic width, i.e. the longitudinal groove widens in sections.
- the slide is not guided through the shank.
- a gap is formed in the widened portions between the slider and the stem.
- the gap can be considered as a part of the longitudinal groove.
- the shank has the longitudinal groove opening to an upper side of the shank and the cleaning recess opening to the underside of the shank (as defined above).
- the cleaning recess extends so far into the shaft, in particular into the Longitudinal groove that allows flow from the top to the bottom (or from the bottom to the top) and thus improved cleanability.
- the shaft can preferably have a plurality of webs (or pairs of webs) spaced apart in the longitudinal direction along the longitudinal groove.
- the plurality of ridges (or pairs of ridges) are longitudinally spaced at equal intervals. This prevents the slide from buckling.
- the shank preferably has a plurality of cleaning recesses, in particular one cleaning recess for each web (or pair of webs).
- the sliding shaft can have a gap formed in the width direction between the slide and the shaft for cleaning, in particular formed by the longitudinal groove, which is partially narrowed or interrupted in the longitudinal direction by the web.
- the gap preferably extends to a bottom of the longitudinal groove.
- a gap can be formed on both sides of the slider in the width direction.
- the slide shaft, in particular the slide can be cleaned through the gap.
- the gap is preferably elongate, i.e. extends in the longitudinal direction of the shaft.
- the gap can be formed/milled in as a milling.
- a cleaning gap can be formed on both sides of the slider in the width direction in order to further improve the cleaning of the slider.
- the cleaning recess and the longitudinal groove can be designed such that they are fluidly connected to one another when the slide is arranged in the longitudinal groove, in particular in a region in the longitudinal direction in which the slide rests on the bottom of the longitudinal groove.
- the cleaning recess has, for example, a greater width extension (ie a greater extension in the width direction of the shank) than the slide or than the longitudinal groove in the region of the pair of webs.
- the fluidic Connection via the bottom of the groove ie the very contact area of the slide.
- a longitudinal extension (i.e. an extension in the longitudinal direction of the shank) of the cleaning recess in the depth direction of the shank may decrease from the outside to the inside.
- the elongation may decrease along a concave surface of the shank.
- a longitudinal extension (i.e. an extension in the longitudinal direction of the shank) of the cleaning recess in the width direction of the shank can increase from the outside to the inside or can be substantially constant.
- the elongation may increase along the concave surface of the shank.
- a width extension (i.e., an extension in the width direction of the shank) of the cleaning recess may be constant in the depth direction of the shank. That is, the cleaning recess extends along a flat surface that is perpendicular to the width direction.
- Such a design of the cleaning recess has proven to be particularly advantageous with regard to manufacturability, stability and cleanability of the shaft.
- the cleaning recess can have the shape of a circular segment or elliptical segment in the longitudinal section perpendicular to the width direction, as has already been indicated above.
- the cleaning recess can have a plane of symmetry which is common to the web and is in particular perpendicular to the longitudinal direction.
- the cleaning recess can have the shape of a circular layer or a rectangle in the longitudinal section perpendicular to the depth direction.
- the cleaning recess can be made simply by dipping a milling cutter.
- a longitudinal extent of the web in the depth direction of the shaft from the outside inwards, in particular from a Groove opening towards a groove base of the longitudinal groove increase.
- the longitudinal extent can preferably increase along a concave side surface of the web.
- a longitudinal extension of the web in the width direction of the shaft can increase from the inside to the outside or be essentially constant.
- the longitudinal extent can preferably increase along the concave side surface of the web. In this way, the geometry of the bar can be easily generated by milling.
- the through-hole formed by the cleaning recess can have a greater width extension than the slide and/or the longitudinal groove in the area of the web. This allows cleaning fluid to flow through.
- the through hole formed by the cleaning recess can have a greater longitudinal extent than the web in its shortest area, particularly at the groove opening, and/or a smaller longitudinal extent than the web in its longest area, particularly at the bottom of the groove.
- Such a design has proven to be suitable in terms of only slightly reduced stability and sufficient flow rate.
- the sliding-shaft instrument can have a described sliding shaft and an instrument handle connected thereto for actuating the relative displacement of the slide and an effector/tool head/tool section that can be actuated by the relative displacement of the sliding shaft.
- the instrument handle is attached to a proximal end of the pusher shaft.
- a relative displacement of the slide can be actuated, in particular manually, by the instrument handle.
- the tool head is attached to a distal end of the slide shaft. The tool head can be actuated by the relative displacement of the slide, in particular the tool head can be opened and closed.
- the present disclosure relates to a surgical
- Sliding shaft instrument with a sliding shaft.
- the sliding shaft has a Sliding guide and a sliding plate guided therein. Due to the narrow guidance of the sliding plate, a reproducible reprocessing of a reusable instrument is almost impossible. Milling can be used to create free spaces in the sliding guide to enable the instrument to be cleaned.
- Previous solutions in which, for example, continuous bores are provided over the entire length of the sliding plate in the sliding guide have the disadvantage that the sliding shaft has reduced stability, its effectiveness has not yet been proven and the bones in the bores are complex and difficult to remove.
- Other solutions, in which millings are provided on the upper side of the sliding shaft enable the sliding plate to be cleaned better, since deep cleaning can be carried out with a brush.
- top milling and bottom milling are provided to improve efficiency.
- the millings on the sliding shaft from above and below and the remaining bars ensure the function of the instrument and prevent the sliding plate from buckling (can be controlled via the number of bars, for example), while the lower millings allow a flow between top and bottom.
- Figs. 1 and 2 are perspective views of a sliding shaft instrument having a sliding shaft
- FIGS. Figures 3 and 4 are perspective views of a detail of a shaft of the sliding shaft
- Figure 5 is a perspective view of the detail of Figure 4 with a slider received in the stem;
- Figs. 1 to 6 show a preferred embodiment of a sliding shaft 1 or a surgical sliding-shaft instrument 2.
- the sliding shaft 1 serves to combine an actuation of a tool head/tool section 3 of the sliding-shaft instrument 2 arranged at a distal end of the sliding shaft 1 with an actuation of a tool at a proximal end of the Sliding shaft 1 arranged instrument handle 4 of the sliding shaft instrument 2 to couple.
- the sliding shaft 1 has an elongate shaft 5 and a slide (/sliding plate) 6 arranged to be displaceable thereon.
- the actuation of the instrument handle 4 in particular a pivoting movement of the instrument handle 4 , is coupled or can be coupled with a relative displacement of the slide 6 relative to the shaft 5 .
- the relative displacement of the slide 6 in the longitudinal direction relative to the shank 5 is coupled or can be coupled to the actuation of the tool head 3 , in particular a closing or opening movement of the tool head 3 . In this way, the opening or closing of the tool head 3 is achieved by the longitudinal movement of the slide 6 along the shaft 5 .
- the slide 6 is arranged in a longitudinal groove 7 of the shank 5 .
- the longitudinal groove 7 is open towards an upper side of the shank 5 .
- the slide 6 preferably extends in the form of a plate.
- the slider 6 extends in the longitudinal direction of the shank 5 and in the depth direction of the shank 5. That is, a thickness of the slider 6 extends in the width direction of the shank 5. As shown in FIG. The slider 6 extends essentially over the entire length of the longitudinal groove 7 of the shaft 5.
- the slider 6 is arranged in the longitudinal groove 7 so that it can be displaced longitudinally.
- the longitudinal groove 7 is preferably arranged centrally in the shank 5 in the width direction.
- the slider 6 is preferably arranged centrally in the longitudinal groove 7 in the width direction.
- the relative displacement of the slide 6 is partially by at least one Longitudinal groove 7 in the width direction narrowing web 8 of the shaft 5 out. Accordingly, the web 8 forms a guide surface for the slide 6 .
- the slide 6 bears in particular on the guide surface of the web 8 .
- the relative displacement of the slide 6 is guided by at least one pair of webs 8 arranged opposite one another in the width direction.
- the pair of webs 8 arranged opposite one another in the width direction (hereinafter also referred to as a pair of webs) can preferably be arranged spaced apart from one another by the thickness of the slider 6, ie its extent in the width direction of the shaft 5.
- the slide 6 can rest on both sides of a web 8 of a pair of webs.
- the longitudinal groove 7 has a basic width that corresponds to a distance between two webs 8 of a pair of webs or a thickness of the slide 6 .
- the longitudinal groove 7 has a greater width in sections along the longitudinal direction than the basic width, i.e. the longitudinal groove 7 widens in sections.
- the slide 6 is not guided by the shaft 5 in the widened sections of the longitudinal groove 7 .
- a gap 9 is thus formed in the widened portions between the slider 6 and the shaft 5 .
- the gap 9 can be regarded as part of the longitudinal groove 7 .
- the gap 9 preferably extends as far as a groove base of the longitudinal groove 7.
- a gap 9 can be formed on both sides of the slide 6 in the width direction.
- the slide shaft 1 in particular the slide 6 , can be cleaned through the gap 9 .
- the gap 9 is preferably elongate, i.e. extends in the longitudinal direction of the shaft 5.
- the gap 9 can be embodied/milled in as a milling.
- the longitudinal groove 7 widens in sections along the longitudinal direction in the width direction (through the gap 9) or narrows/narrows in sections in the width direction (through the web 8).
- the gap 9 is accordingly narrowed or interrupted in sections in the longitudinal direction by the web 8 .
- the shank 5 has a plurality of webs 8 (or pairs of webs) spaced apart in the longitudinal direction along the longitudinal groove 7.
- the plurality of webs 8 (or pairs of webs) are preferably arranged at equal distances apart in the longitudinal direction. In this way, the slide 6 can be prevented from buckling.
- the shank 6 has a cleaning recess 10 forming a through hole opening into the longitudinal groove 7 .
- the cleaning recess 10 is arranged in the longitudinal direction in the area of the web 8 .
- the cleaning recess 10 is open to a bottom of the shank 5 .
- the formation of a passage between the cleaning recess 10 and the longitudinal groove 7 allows cleaning fluid to flow, for example from top to bottom or from bottom to top, through the shaft 5 and around the slide 6 .
- the shank 5 preferably has a plurality of cleaning recesses 10, in particular one cleaning recess 10 for each web 8 (or pair of webs).
- the cleaning recess 10 is preferably elongate, i.e. extends in the longitudinal direction of the shank 5. In this way, as little material as possible is removed from the shank 5 in its more unstable width direction for the cleaning recess 10.
- the cleaning recess 10 can be formed/milled in as a milling. As a result, in contrast to drilling, a smoother surface can be produced and, for example, the formation of bones can be reduced.
- the cleaning recess 10 is preferably arranged centrally in the shaft 5 in the width direction.
- the cleaning recess 10 and the longitudinal groove 7 can in particular be designed in such a way that they are fluidically connected to one another when the slide 6 is arranged in the longitudinal groove 7 .
- This means that the cleaning recess 10 has, for example, a greater width extension (ie a greater extension in the width direction of the shank 5) than the slide 6 or than the longitudinal groove 7 in the area of the pair of webs 8 has.
- a greater width extension ie a greater extension in the width direction of the shank 5
- a preferred form of the cleaning recess 10 is shown in FIG. 3 on an enlarged scale.
- a longitudinal extension (i.e., an extension in the longitudinal direction of the shank 5) of the cleaning recess 10 may decrease in the depth direction of the shank 5 from outside to inside.
- the cleaning recess 10 can have the shape of a circular segment or elliptical segment in the longitudinal section (perpendicular to the width direction of the shaft 5).
- the longitudinal extension of the cleaning recess 10 can thus decrease along a concave surface 11 of the shaft 5 from the outside (here below) to the inside (here above).
- the longitudinal extension (i.e., an extension in the longitudinal direction of the shank 5) of the cleaning recess 10 may increase in the width direction of the shank 5 from outside to inside.
- the longitudinal extent of the cleaning recess 10 can therefore be along the concave surface
- the cleaning recess 10 can have the shape of a circular layer or an elliptical layer in longitudinal section (perpendicular to the depth direction of the shank 5).
- a width extension (i.e., an extension in the width direction of the shank 5) of the cleaning recess 10 may preferably be constant in the depth direction of the shank 5. That is, the cleaning recess 10 along a flat surface
- the cleaning recess 10 and the web 8 are preferably constructed essentially symmetrically to a common plane of symmetry perpendicular to the longitudinal direction and/or to a common plane of symmetry perpendicular to the width direction.
- a preferred form of the web 8 is shown in Fig. 4 enlarged.
- a longitudinal extension (ie an extension in the longitudinal direction of the shank 5) of the web 8 can increase in the depth direction of the shank from the outside to the inside. This means that the longitudinal extent of the web 8 can increase in particular from a groove opening to the bottom of the longitudinal groove.
- the web 8 can have the shape of a circular segment or elliptical segment in longitudinal section (perpendicular to the width direction of the shank 5).
- the longitudinal extension of the web 8 so increase along a concave side surface 13 of the web 8 from the outside (above here) downwards (below here).
- the longitudinal extension (ie an extension in the longitudinal direction of the shank 5) of the web 8 can increase in the width direction of the shank 5 from the inside to the outside.
- the longitudinal extent of the web 8 can thus increase along the concave side surface 13 of the web 8 in the width direction from the inside to the outside.
- a width extension (ie an extension in the width direction of the shank 5 ) of the web 8 can preferably be constant in the depth direction of the shank 5 . That is, the ridge 8 extends along a flat surface 14 perpendicular to the width direction.
- the flat surface 14 of the web 8 serves as a guide surface for the slide 6.
- FIG. 5 shows the section from FIG. 4, with the slide 6 being arranged in the longitudinal groove 7 of the shaft 5 . It can be seen that the gap 9 is formed on both sides of the slider 6 in the width direction. The gap 9 essentially has the same width extension as the web 8 . The slide 6 rests against the shaft 5 only in the area of the web 8 .
- the through hole is formed in the area of the webs 8 .
- the gap 9 is interrupted by the web 8 so that the gap extends over the concave side faces 13 to the bottom of the longitudinal groove 7 .
- an outlet of the gap 9 is in the form of a circular arc in longitudinal section. This results in a bridge-like shape of the web 8 in the longitudinal section through the two concave side surfaces 13 and the concave surface
- the concave surface 11 has essentially the same curvature as the concave side surfaces 13 .
- the instrument handle 4 is formed by two handles 15, 16 that can be pivoted relative to one another.
- a first handle 15 can be firmly connected to the shaft 5 .
- a second handle 16 can be operatively connected to the slide 6 in this way, for example via a joint 17 be that it moves the slide 6 relative to the shaft 5 when pivoting the second handle 16 relative to the first handle 15 in the longitudinal direction.
- the tool head 3 is formed by two tool parts 18, 19 which can be pivoted relative to one another.
- a first tool part 18 can be firmly connected to the shank 5 .
- a second tool part 19 can be operatively connected, for example via a joint 20, to the slide 6 in such a way that a relative displacement of the slide 6 relative to the shaft 5 pivots the second tool part 19 relative to the first tool part 18, in particular opening or closing the tool head 3. closes.
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Cleaning In General (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020126015.6A DE102020126015A1 (de) | 2020-10-05 | 2020-10-05 | Chirurgisches Handinstrument der Schaftbauart |
| PCT/EP2021/076759 WO2022073817A1 (de) | 2020-10-05 | 2021-09-29 | Chirurgisches handinstrument der schaftbauart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4225164A1 true EP4225164A1 (de) | 2023-08-16 |
Family
ID=78008182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21783282.3A Pending EP4225164A1 (de) | 2020-10-05 | 2021-09-29 | Chirurgisches handinstrument der schaftbauart |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12521125B2 (de) |
| EP (1) | EP4225164A1 (de) |
| JP (1) | JP7714644B2 (de) |
| CN (1) | CN116437864A (de) |
| DE (1) | DE102020126015A1 (de) |
| WO (1) | WO2022073817A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6200320B1 (en) | 1989-04-24 | 2001-03-13 | Gary Karlin Michelson | Surgical rongeur |
| DE20103630U1 (de) | 2001-03-01 | 2001-09-13 | Widmann, Heinrich, 88637 Buchheim | Chirurgisches Instrument |
| US6638280B2 (en) * | 2001-10-10 | 2003-10-28 | Codman & Shurtleff, Inc. | Rongeur with drainage |
| US7691107B2 (en) * | 2005-09-30 | 2010-04-06 | Schneiter James A | Rongeur |
| DE102009008719A1 (de) | 2009-02-06 | 2010-08-12 | Aesculap Ag | Chirurgisches Schiebeschaftinstrument und Schiebeschaft |
| DE102009008691A1 (de) * | 2009-02-06 | 2010-08-12 | Aesculap Ag | Chirurgisches Schiebeschaftinstrument und Schiebeschaft |
| DE102012209247A1 (de) * | 2012-05-31 | 2013-12-05 | S. U. A. Martin Gmbh & Co Kg | Chirurgisches Schiebeschaftinstrument |
| DE202015105793U1 (de) * | 2015-10-30 | 2016-01-28 | Norbert HEINEMANN | Chirurgisches Instrument |
| DE102016111892B4 (de) * | 2016-06-29 | 2022-05-05 | Aesculap Ag | Chirurgisches Instrument mit Linien- und/oder Punktkontakten in einem Koppelbereich |
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2020
- 2020-10-05 DE DE102020126015.6A patent/DE102020126015A1/de active Pending
-
2021
- 2021-09-29 CN CN202180068399.5A patent/CN116437864A/zh active Pending
- 2021-09-29 JP JP2023520483A patent/JP7714644B2/ja active Active
- 2021-09-29 WO PCT/EP2021/076759 patent/WO2022073817A1/de not_active Ceased
- 2021-09-29 EP EP21783282.3A patent/EP4225164A1/de active Pending
- 2021-09-29 US US18/030,169 patent/US12521125B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022073817A1 (de) | 2022-04-14 |
| JP2023543928A (ja) | 2023-10-18 |
| DE102020126015A1 (de) | 2022-04-07 |
| JP7714644B2 (ja) | 2025-07-29 |
| US12521125B2 (en) | 2026-01-13 |
| CN116437864A (zh) | 2023-07-14 |
| US20240023974A1 (en) | 2024-01-25 |
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