Source: http://www.google.com/patents/US20020091298?ie=ISO-8859-1&dq=4740761
Timestamp: 2016-05-24 09:01:27
Document Index: 652234712

Matched Legal Cases: ['art 28', 'art 28', 'art 28', 'art 28', 'art 28', 'art 38', 'arts 54', 'art 55', 'arts 64']

Patent US20020091298 - System with a surgical needle and a handle - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsIn a system with a surgical needle (10) and a handle (20), the surgical needle (10), in its proximal end region opposite the needle tip, comprises a support section which is adapted to be pushed in the handle (20). The handle (20) includes a lumen adapted to support the support section of the surgical...http://www.google.com/patents/US20020091298?utm_source=gb-gplus-sharePatent US20020091298 - System with a surgical needle and a handleAdvanced Patent SearchPublication numberUS20020091298 A1Publication typeApplicationApplication numberUS 09/956,363Publication dateJul 11, 2002Filing dateSep 19, 2001Priority dateOct 20, 2000Also published asEP1326540A2, US6638209, WO2002034124A2, WO2002034124A3Publication number09956363, 956363, US 2002/0091298 A1, US 2002/091298 A1, US 20020091298 A1, US 20020091298A1, US 2002091298 A1, US 2002091298A1, US-A1-20020091298, US-A1-2002091298, US2002/0091298A1, US2002/091298A1, US20020091298 A1, US20020091298A1, US2002091298 A1, US2002091298A1InventorsSusanne LandgrebeOriginal AssigneeSusanne LandgrebeExport CitationBiBTeX, EndNote, RefManReferenced by (69), Classifications (12), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetSystem with a surgical needle and a handle
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0029] Before explaining the present invention in detail, it should be noted that the invention is not limited in its application or use to the details of construction and arrangement of parts illustrated in the accompanying drawings and description, because the illustrative embodiments of the invention may be implemented or incorporated in other embodiments, variations and modifications, and may be practiced or carried out in various ways. Furthermore, unless otherwise indicated, the terms and expressions employed herein have been chosen for the purpose of describing the illustrative embodiments of the present invention. [0030] [0030]FIG. 1 illustrates in a perspective view the proximal end region of a surgical needle 10, which is one component of an embodiment of the system with a surgical needle and a handle. The needle tip, which is located at the distal end of the needle 10, is not shown in FIG. 1. A shaft 11, joins to the needle tip. In its proximal end region, the needle 10 comprises a support section 12. [0031] An attachment section 13, which, in the embodiment, has a conical basic shape (the diameter increasing in the proximal direction) and is provided with a corrugation 14, is located between the shaft 11 and the support section 12. At the transition between the shaft 11 and the attachment section 13, there is formed a step or shoulder 15. At the attachment section 13, e. g. a tape can be attached, e.g. by means of shrink tubing, which is to be secured in the tissue of a patient by means of the surgical needle 10. The step 15 provides for a smooth change of the cross-section between the needle 10 and the shrink tubing or the tape at the transition site. Alternative means may be provided to attach the tape at both the proximal end and the distal end of the needle 10. [0032] The support section 12 has a cross-sectional shape with two flat portions, from which one can be seen in FIG. 1 and is designated by 16. A locking protrusion 17, the cross-sectional shape of which coincides to that in the distal region of the support section 12, is located at the proximal end of the support section 12; the cross-sectional shape corresponds to the area 34 in FIG. 7. The locking protrusion 17 has two flat portions as well, from which one is designated by 18 and can be seen in FIG. 1. Adjacent to the locking protrusion 17 in distal direction, there is a depression 19. In the embodiment, the cross-sectional shape of the needle 10 is circular in the area of the depression 19, the diameter corresponding to the distance between both flat portions 18 of the locking protrusion 17. [0033] Preferably, the surgical needle 10 is integrally made and, in the region of the shaft 11 and the needle tip, can have any form suitable to the desired application. [0034] [0034]FIGS. 2 and 3 illustrate a handle 20, which is another component of the system. In the area of its proximal end, the handle 20 is provided with two broadening structures 22, which cause the handle to rest well in a surgeon's hand. A duct or lumen, into which the support section 12 of the needle 10 can be pushed, is located in the distal end region 24 of the handle 20, as explained below in detail. In the views according to FIGS. 2 and 3, the needle 10 is inserted in the handle 20 such that only the attachment section 13 and the shaft 11 only of the needle 10 are not inserted into the handle 20. In the middle area of the handle 20, an actuating lever 26 functions as a locking means for easily locking and unlocking the needle 10, as discussed below. In the embodiment, the handle 20 is made from synthetic material and has a casing with a lower casing part 28 and an upper casing part. It is designed as a disposable article. A reusable handle, however, is conceivable as well. [0035] [0035]FIG. 3 shows the distal region of the lower casing part 28 with a surgical needle 10 inserted. The lower casing part 28 includes, in its distal end region 24, a lumen running in the longitudinal direction of the handle 20, which lumen is closed in circumferential direction and open at the distal end face of the handle 20 and at the proximal end of the lumen. The cross-sectional shape of this lumen is adapted to that of the support section 12, its length corresponds to that of the flat portion 16. Thus, the support section 12 of the needle 10 can be pushed into the lumen from the distal end face of the handle 20 and thereafter section 12 is supported in the lumen in a torsion-proof manner. As can be seen in FIG. 3, the depression 19 and the locking protrusion 17 are external to the lumen when the needle 10 is inserted into handle 20. [0036] Joining to the lumen in proximal direction, there is formed a channel 29 in the lower casing part 28, as indicated in FIG. 3. The channel 29 is accessible when the casing of the handle 20 is opened. In the assembled state of the handle, a sleeve 30 (see FIG. 4) is mounted between the channel 29 and a similarly designed channel in the upper casing 38 (FIG. 6) such that the sleeve 30 can be rotated around the longitudinal axis of the channel 29 between a locking position and a release position. [0037] As shown in FIG. 4, the sleeve 30 has a circular cross-section. At its distal end face, the sleeve 30 is designed as a plate-like locking element 32, which is provided with an opening 34. The opening 34 (see also FIG. 7) is adapted with respect to the shape of the cross-sectional shape of the locking protrusion 17 such that the locking protrusion 17 can pass through the opening 34 if the flat portions 18 and the corresponding flat portions of the opening 34 are aligned with respect to each other. In the assembled state of the handle 20, the distal end of sleeve 30 abuts at the proximal end of the lumen for the support section 12 such that the depression 19 is located in the area of the locking element 32; the thickness of the locking element 32 is adapted to the length of the depression 19. [0038] The actuating lever 26 extends from the proximal end region of the sleeve 30 and runs generally in radial direction. FIG. 5 shows the lower casing part 28 of the handle with the sleeve 30 inserted. In the detailed view of FIG. 6, the upper casing 38 is shown. It can be recognized that the free end of the actuating lever 26 projects through an opening 39 in the upper casing 38. The opening 39 allows a rotating movement of the actuating lever 26 by about 90� such that, by adjusting the actuating lever 26, the sleeve 30 can be rotated from the locking position to the release position. In FIG. 6, the actuating lever 26 is in the locking position, wherein an engagement protrusion 36 (see FIG. 4) is located in a corresponding depression at the upper casing part 38 such that the actuating lever 26 is secured against an unintentional movement. This lock can be overcome when a larger force is applied such that the actuating lever 26 can be rotated to the release position. [0039] [0039]FIG. 7 displays the distal end of the sleeve 30 with the locking element 32 and the opening 34. [0040] In FIGS. 8 and 9, the mode of operation of the locking means is illustrated. In the state shown in FIG. 8, the sleeve 30 is in the release position, wherein the locking element 32 is aligned with respect to the opening 34 and thus fits therethrough. The locking position is shown in FIG. 9. It can be recognized that the depression 19 is located in the area of the locking element 32 and that the locking protrusion 17 prevents the needle 10 from being pulled out. The locking position is achieved by rotating the sleeve 30 by about 90�. It has to be noticed that in the sectional representation according to FIG. 9 the plane of the paper has been rotated by 90′ as well (see also FIG. 3) such that seemingly the needle 10 has been rotated and not the sleeve 30. [0041] [0041]FIG. 10 shows a variant of the handle, which is designated by 20′. In addition to both broadening structures 22, the handle 20, has two finger application structures 40 which enable an even more convenient handling. The surgeon can grasp the handle 20′ such that the broadening structures 22 are positioned in his palm whereas his index finger and his middle finger grip around the finger application structures 40 and thus slightly press the handle 20 against the palm. Therefore, the handle 201 rests more economically and safely in, the hand of the surgeon. The actuating lever 26 can be rotated with the thumb of the same hand. Thus, a convenient actuation with one hand is possible. [0042] As explained above, the handle 20 appreciably facilitates the guidance and use of the surgical needle 10 inserted into the handle 20. When the actuating lever 26 is in the locking position, the handle 20 and the needle 10 are firmly connected to each other. If, however, the handle 20 obstructs the further application of the needle 10 and the needle 10 has to be released, the actuating lever 26 can be easily rotated into the release position such that the needle 10 and the handle 20 can be separated by a relative motion in longitudinal direction without problems and jerks. [0043] [0043]FIG. 11 shows several views of a third embodiment of the system according to the invention, i.e. (a) from the top, (b) from the front, (c) from the side, and (d) in a schematic explosion view. The needle, again designated by 10, is similarly designed as before, whereas the handle, designated by 50, has a particular ergonomic shape with one lateral broadening structure 52 only. The handle 50 comprises two casing parts 54 and 55 inside which a sleeve 56 is mounted in a rotatable manner which is designed similar as in the first two embodiments. An actuating lever 58 is accessible through an opening 59 in the casing part 55 in order to rotate the sleeve 56 from the locking position into the release position. [0044] [0044]FIG. 12 displays several views of a fourth embodiment of the system according to the invention, i.e. (a) from the top, (b) from the side, (c) from the front, and (d) from below. Again, the needle is designated by 10. The handle, provided with the reference numeral 60, comprises a gripping bow 62 as a broadening structure. The casing is in two-part form again with casing parts 64 and 65. A lever 66 serves as an actuating lever of a rotatable sleeve, which is similarly designed as in the previous embodiments and is not shown in FIG. 12. The lever 66 is arranged at the end of the sleeve. [0045] It will be apparent from the foregoing that, while particular forms of the invention have been illustrated and described, various modifications can be made without departing from the spirit and scope of the invention. Accordingly, it is not intended that the invention be limited, except as by the appended claims. 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