JP2006095311A - Holder for fixed element for surgical operation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a holder which improves the function for a slender fixed element for surgery. <P>SOLUTION: This holder (10) is used for the slender fixed element for surgery such as a bone connection hinge screw (30). This holder is designed so that it is held by one hand and has a base member (12) whose size is set. The base member (12) has at least one opening (16) so that a stored fixed element is held in a state ready to be used. In order to make the handling of the fixed element easy, a measuring scale (18) is formed in an area of the base member (12) so that the length can be measured while storing the fixed element. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a holder for holding a surgical fixation element. In particular, the invention relates to a holder for an elongated fixation element such as an osteosynthesis screw.

  In surgical situations, fixation elements such as osteosynthesis screws or osteosynthesis nails are often required. Because these fastening elements are usually small in size and have problems associated with handling, holders for these fastening elements have been developed. In many cases, the surgeon removes the selected fixation element from the holder with a suitable tool (e.g., with a driver having a gripping mechanism) and inserts it at the desired location within the area being operated on. Conventional surgical use holders are generally incorporated into surgical trays, racks or carts, making handling of the holders more difficult.

A holder that is easy to handle for osteosynthesis screws is known from WO 00/07150. The holder includes a base member having a container for receiving an osteosynthesis screw. The base member has a size that is easy to handle by hand, so that it can be held by the surgeon by hand during surgery.
International Patent Application WO 00/07150

  It is an object of the present invention to provide a holder for an elongated surgical fixation element that exhibits a functional improvement.

  The purpose is a holder for holding an elongated surgical fixation element, such as an osteosynthesis screw, comprising a base member designed and held in size with one hand, said base member being An opening is provided for receiving the fixing element so that the fixing element can be held upright in a ready-to-use state, and is used for measuring in the region of the base member for measuring the length of the received fixing element. Achieved by a holder with a scale.

  Thus, the surgeon does not need to remove the securing element already held in the holder from the holder and use another measuring means to determine the length of the surgical securing element. Instead, the use of the holder according to the invention allows the surgeon to establish its length while the anchoring element is received and already held in said holder.

  The base member is suitably configured to hold at least one elongate surgical fixation element in an upright position. The holding of the fixing element therefore simplifies the removal of the fixing element with a suitable removal tool (for example a screwdriver with a gripping mechanism for the fixing element). The surgeon can properly position the fixation element removed from the holder with the removal tool directly at the patient's body or a desired location within the body.

  The base member may comprise at least one transparent or open area for viewing both the measuring graduation and the contained fixing element. The base member may be made of a transparent material, preferably plastic.

  According to the first modification, the measuring scale is provided on or in the transparent area. According to another variant, the measuring scale is provided on or in a transparent or open area facing the fixed element accommodated.

  The securing element can be held in a suspended or upright position. For example, at least one opening for accommodating the fixing element to be held may be accommodated by hanging the fixing element. For this purpose, the opening may have a stop surface that coincides with a diameter expansion (for example, a screw head) of the contained fixing element. It is good also as making a stop surface correspond with the reference point of a fixed scale.

  To facilitate handling of the base member, the holder can be ergonomically shaped. Accordingly, it is preferable that the base member is substantially block-shaped or box-shaped, and the wall of the base member has an ergonomic outer shape. In particular, the base member may be designed to be held between fingers.

  The anchoring element can be loosely accommodated in the base member or can be accommodated for proper capture. In order to accommodate it properly, it is possible to provide a slightly cushioning fit between the part such as the head of the fixing element and the region of the base member that engages it.

  According to a variant of the invention, the base member is provided with a cover (for example a hinged lid or a sliding lid) that closes together with the fixing element housed therein. This cover may allow vapor to pass through or allow other sterilizing media to pass through. This facilitates sterilization of the holder (and the fixing element housed inside). An opening can be formed in the cover to achieve vapor passage.

  The base member can have one or more openings, which allow the sterilizing medium to reach the securing element accommodated therein. The opening preferably extends in the form of a chamber in a holder that houses the elongated portion of the fixing element.

  Since it should be preferred to hold a number of fixing elements within the base member, the base member can comprise one or more rows of openings for receiving the fixing elements. Preferably, the base member is designed to accommodate about 4-16 osteosynthesis screws. The measuring graduation can be arranged to extend substantially perpendicular to the openings in at least one row. Therefore, the scale for measurement can be provided in the area | region of the end surface where the base member became narrow.

  The holder according to the invention can be used as a transport container for at least one anchoring element accommodated. At least one securing element can be sterilized and enclosed in the transport container. For this purpose, it is possible to wrap the holder with one or more elements of the transport container (a packaging material such as a plastic bag or a concave part made of plastic).

  The invention further comprises a system for holding an elongated surgical fixation element, the system comprising a holder according to the invention and at least one fixation element held in the holder. The fixing element may comprise a shaft and a head having a larger diameter than the shaft. Preferably, the fixation element takes the form of an osteosynthesis screw, an osteosynthesis nail or an osteosynthesis pin. The securing element should be about 2-50 mm long, preferably 4-25 mm long.

  The system may further comprise one or more transport containers that wrap (preferably sterilized) the holder. At least one of the elements of the transport container may be at least partially transparent so that a measurement scale can be seen.

  The system according to the invention can comprise a surgical tray, rack or cart for receiving at least one holder. According to a further development of the invention, the tray, rack or cart can be provided with one or more recesses for receiving at least one holder. This recess may be shaped to match the shape of the holder. In addition, the depression can be provided with an inclined area for facilitating the introduction of the holder into the depression.

  According to a further feature of the present invention, the system is a holder as described above, optionally having a measuring scale, a surgical tray, rack or cart defining an area for receiving the holder. It is to be included.

  Further details and advantages of the present invention will become apparent from the following description of preferred exemplary embodiments and the drawings.

  A number of exemplary embodiments of the holder and holder system according to the invention are described below. Matching elements are indicated by the same reference numerals.

  FIG. 1 shows a holder 10 of a first embodiment according to the present invention. The holder 10 includes a transparent base member 12 and a transparent cover 14, and the cover 14 is for closing an upper portion of the base member 12 provided with a number of openings 16. The base member 12 is entirely made of a transparent plastic material, and a measuring scale 18 is provided on the side wall 20 in the form of dark lettering. The measurement scale 18 is for determining the length of the fixed element held in one of the openings 16. Since the base member 12 is transparent, it is not necessary to remove the securing element from the base member 12 to determine its length. Instead, the securing element already held (at least partly) is visible through the side wall 20 of the base member 12 provided with a measuring scale 18. As a result of the base member 12 being transparent (at least in the area of the measurement scale 18), both the measurement scale 18 and the fixing element held in the base member 12 can be viewed simultaneously.

  Since the base member 12 is transparent, it is of course possible to attach the measurement scale 18 to the inside of the rear side wall 22 instead of (or in addition to) the area of the front side wall 20 (front side). If the side wall 20 is transparent, the rear side wall 22 itself need not be transparent). The front side wall (especially when the base member 12 is made of an opaque material) in order to place the measuring graduation 18 inside the rear side wall 22 and make the holding element held visible at the same time as the scale. It is possible to provide an appropriately sized opening in the 20 regions.

  An opening 23 is provided in the end region of the base member 12. This opening 23 makes it possible to reach the axial part of the fixing element already holding the disinfecting medium (for example steam). Since the cover 14 can also pass through the steam, the fixing element housed in the holder 10 can be completely and reliably sterilized.

  It is indicated that the length of the base member 12 is about 20 mm to about 100 mm, preferably about 25 mm to about 50 mm, and the width is about 7 mm to about 30 mm, preferably about 8 mm to about 20 mm. It is. This dimensioning of the base member 12 allows the surgeon to hold the holder between the fingers of one hand during the operation.

  The structure and operation mode of the holder 10 shown in FIG. 1 will be described in more detail with reference to FIGS. For the sake of clarity, the scale for measurement is actually displayed completely, but only the outline is shown in the figure.

  FIG. 2 clearly shows the ergonomic shape of the base member 12. Here, not only the dimensions of the base member 12 but also the shape simplify the handling of the holder 10 during surgery. As further shown in FIG. 2, the cover 14 takes the form of a sliding lid. In the region 24 shown in the lower part of FIG. 2, the cover 14 has a corrugated structure, in particular to make it easier to open the cover. The cover 14 is provided with a large number of openings 26 so that the steam can surely pass during disinfection.

  The plan view of the base member 12 in FIG. 3 shows a total of five openings 16 arranged in a row for the introduction and retention of the fixing elements. Although the base member 12 shown in FIG. 3 comprises only one row of openings 16, it is also possible to provide two or more rows of parallel openings 16. A label attaching portion may be provided on the top portion 28 of the base member 12. The label can be associated with the diameter and length of the securing element that is retained within the base member 12.

  FIG. 4 shows a longitudinal section of the base member 12 of FIG. In order to illustrate the operating mode of the holder 10, FIG. 4 shows an example in which a fixing element in the form of an osteosynthesis screw 30 is held inside the holder. The osteosynthesis screw 30 includes a screw shaft portion 34 formed with a screw thread and a screw head 32 having a larger diameter than the shaft portion 34. In the region of the screw head 32, for example, a torque insertion structure taking the shape of a cross hole is provided (not shown). The osteosynthesis screw 30 is picked up by a screwdriver, and the tip of the driver includes a gripping mechanism that operates, for example, by magnetism, friction, or coupling so that the osteosynthesis screw 30 can be easily removed from the holder 10.

  In this embodiment, the osteosynthesis screw 30 is held in a suspended manner. This means that the screw head 32 is located on the surface 28 of the base member (forming an angled countersunk hole). The osteosynthesis screw 30 may be hung gently in the opening 16 or may be in contact with the wall defining the opening 16 by a slightly interfering fit. This slightly interfering fit ensures that the osteosynthesis screw 30 does not fall out of the opening 16 when the holder 10 is tilted unintentionally.

  FIG. 5 is a partial sectional view taken along line BB in FIG. A conical stop surface 36 for the head of the fixing element to be accommodated is visible. In FIG. 5, the lower edge portion of the stop surface 36 defines a reference point (0 point) of the measurement scale.

  FIG. 6 shows the cover 14 for the base member 12 of the holder 10 in a more enlarged size. The corrugated region 24 and the large number of openings 26 can be clearly seen, the latter ensuring that the cover 14 can pass steam.

  7 to 9 show another embodiment of the holder 10 according to the present invention. The holder 10 according to the second embodiment substantially coincides with the holder according to the first embodiment described above. However, the base member 12 of the holder 10 according to the second embodiment is higher in height than that of the first embodiment in order to accommodate longer fixing elements. The measurement scale 18 may be disposed only in the lower region of the side surface 20 of the base member 12 (as shown in FIG. 7) or expanded over the entire side surface 20. The cover 14 of the base member 12 is omitted in FIGS. 7 and 8 for the sake of clarity, but the cover 14 is shown in the sectional view shown in FIG.

  10 and 11 show a third embodiment of the holder 10 according to the present invention. Unlike the embodiment described above, the measurement scale 18 (the scale is not accurate) is provided on the narrow end face of the base member 12 which is totally transparent. The fixing elements are housed in a row (i.e. back and forth) in the openings 16 and the scale 18 extends substantially perpendicular to a straight line passing through the rows of openings 16 so that a reliable length measurement, In particular, the length of the fixing element held in the first opening 16 (adjacent to the scale 18) can be measured. By looking through the transparent side wall 20 of the holder 10, it can be ascertained that all the fixing elements housed in the holder are of equal length. FIG. 10 clearly shows that the base member 12 has a large number of openings 23. These openings 23 allow the disinfecting medium to easily reach the fixing element (or its elongated portion) accommodated in the holder 10.

  12 to 15 are a perspective view (FIG. 12), a side view (FIG. 13), a top view (FIG. 14) of the closed state of the transport container 50 for the holder 10 according to the present invention, and an open holder. FIG. 15 is a plan view (FIG. 15) showing the state in which 10 is taken out from above. The shipping container 50 can be part of a blister pack that includes a number of shipping container elements 50, and includes a clear plastic recess 52 and a release plastic film having a release tab 56 that closes the plastic recess 52. Contains 54.

  When the plastic film 54 is removed, the state shown in FIG. 15 is obtained. The holder 10 shown only schematically is held so as to be fixed between two (also transparent) elements 58, 58 '. Since the entire transport container 50 is transparent, the length of the fixing element accommodated in the holder 10 through the transport container 50 can be measured. The fixing element is appropriately sterilized in the transport container 50. The transport container 50 can be packaged by a second packaging layer (for example, a transparent plastic bag).

  FIG. 16 shows a system 40 according to the present invention, which has a surgical tray 42 and a number of holders 10. The surgical tray 42 has a housing 44 for a surgical instrument such as a driver and a number of recesses 46 adapted to the holder 10. The recess 46 serves to temporarily store the holder 10, or serves as a safe place to accommodate the holder 10 for removing the fixing element. The tray 42 further comprises an additional screw measuring block 48.

  The holder 10 housed in the tray 42 is a disposable product and serves as a sterilized transport container for the fastening element. As a result, the fixing element is supplied in a sterilized package. During transport, the holder 10 is advantageously protected by two barriers from any possible contamination. For example, the holder 10 may be sealed with two plastic bags, or may be housed and supplied in a hard plastic recess sealed with paper or plastic film (eg, as shown in FIGS. 12-15). Well, it will be enclosed in a plastic bag.

  Although the present invention has been described with reference to preferred embodiments, those skilled in the art can make improvements, modifications, and additions. Accordingly, the scope of the invention is limited only by the scope of the following claims.

1 is a perspective view of a first exemplary embodiment of a holder having a measurement scale according to the present invention. FIG. FIG. 6 is another perspective view of the holder of FIG. FIG. 2 is a plan view of the holder of FIG. FIG. 4 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a cross-sectional view taken along line BB in FIG. FIG. 2 is a perspective view showing a lid of the holder of FIG. FIG. 6 is a perspective view of another exemplary embodiment of a holder according to the present invention that does not have a lid. FIG. 8 is a plan view of the holder of FIG. FIG. 9 is a sectional view taken along line BB in FIG. FIG. 7 is a perspective view of yet another exemplary embodiment of a holder according to the present invention that does not have a lid. FIG. 11 is a front view of the holder of FIG. 10 having a lid. It is a figure which shows the transport container of the holder which concerns on this invention. It is a figure which shows the transport container of the holder which concerns on this invention. It is a figure which shows the transport container of the holder which concerns on this invention. It is a figure which shows the transport container of the holder which concerns on this invention. It is a perspective view of the holder system concerning the present invention.

Explanation of symbols

10 Holder
12 Base member
14 Cover
16, 23, 26 opening
18 Scale for measurement
20 Front side wall of base member
22 Back side wall of base member
28 Top of base member
30 osteosynthesis screws
32 Screw 30 head
34 Shaft part of screw 30
36 Stop surface
40 Holder system
42 Surgical tray
44 Surgery instrument storage
46 Recess of tray 42
48 Screw measurement block
50 shipping container
52 Clear plastic recess in transport container 50
54 Plastic film for peeling
56 Peel tab
58 Holder holding element

Claims (23)

A holder (10) for holding an elongated surgical fixation element (30), such as an osteosynthesis screw, comprising a base member (12) designed and sized to be held with one hand ,
The base member (12) comprises an opening (16) for receiving the fixing element so that the fixing element (30) can be held upright and ready for use;
A holder provided with a measurement scale (18) in the region of the base member (12) in order to measure the length of the received fixing element (30). The holder according to claim 1, wherein the base member (12) is configured to be able to hold at least one elongated surgical fixing element (30) in a suspended or standing position. The base member (12) comprises at least one transparent or open area (30) for viewing both the measuring scale (18) and the received fixing element (30). The holder according to claim 1 or 2, wherein 4. The holder according to claim 3, wherein the measurement scale (18) is provided on or in the transparent area (20). The measuring scale (18) is provided on or in the transparent or open region (30) facing the fixed element (30) accommodated therein. 3 holder. The holder according to any one of claims 1 to 5, characterized in that at least one of the openings (16) can suspend and accommodate the fixing element (30). 7. The holder according to claim 6, wherein the opening (30) has a stop surface (36) coinciding with the diameter expansion portion (32) of the received fixing element (30). 8. The holder according to claim 7, wherein the stop surface (36) coincides with a reference point of the measurement scale (18). The holder according to any one of claims 1 to 8, wherein the base member (12) has an ergonomic shape so as to facilitate handling. 10. A holder as claimed in any one of the preceding claims, further comprising a cover (14) for closing the base member (12) together with at least one fixing element housed therein. 11. The holder according to claim 10, wherein the cover is a sliding lid (14). 12. The holder according to claim 10, wherein a sterilizing medium can pass through the cover (14). The holder according to any one of the preceding claims, wherein the base member (12) comprises at least one row of openings (16) for a number of the fastening elements (30) accommodated therein. . 14. The holder according to claim 13, wherein the measurement scale (18) extends substantially perpendicularly to the at least one row of openings (16). The base member (12) comprises at least one opening (23);
15. The sterilization medium can reach the at least one fixing element (30) held inside the opening (23), according to any one of claims 1 to 14. holder. Use of holder (10) alone or with transport container (50) for said at least one securing element (30). Use of a holder according to claim 16, characterized in that the at least one fixing element (30) is sterilized and enclosed in the transport container (10, 50). Holding an elongate surgical fixation element (30) comprising a holder (10) according to any one of the preceding claims and at least one fixation element (30) held in the holder (10) System (40) to do. 19. The system according to claim 18, wherein the holder (10) is housed in a transport container (50). 20. System (40) according to claim 19, characterized in that the transport container (50) is at least partly transparent and the measuring scale (18) is visible. 21. A device according to any one of claims 18 to 20, characterized in that the fixing element (30) comprises a shank (34) and a head (32) having a larger diameter than the shank (34). System. The system according to any of claims 18 to 21, further comprising a surgical tray (40), rack or cart for receiving at least one of said holders (10). 23. The system of claim 22, wherein the tray (40), rack or cart comprises one or more recesses (46) for receiving at least one of the holders (10).

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