• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    11SummaryThe present invention relates to a method for increasing safety in connection with the removal of a cannula (KA) from a syringe, wherein the cannula (KA) is removedthe syringe (S) by means of a separation mechanism. The inventionhe also goes to a device to increase safety in connection with the removal of a cannula (KA) from a syringe. The method according to the present invention is characterized in that a sleeve (3) mounted on a tube (1) and a tube (1)is fitted on the outside of a syringe body (SK) of the syringe (S), that a cannula (KA) is mounted on the syringe body (SK) so that the tube (1) and the sleeve (3) are displaced in the direction of the cannula (KA) so that the tube (1) encloses the cannula (KA), that by means of a mutual rotation of the tube (1) and the sleeve (3) relative to each other aclamping of the tube (1) relative to the syringe body (SK), that there is a relative displacement of the tube (1) and the sleeve (3) in the longitudinal direction of the tube (1) to have a clamping action between the tube (1) and the syringe body (SK), that the syringe body (SK) is displaced relative to the rudder (1) so that there is a release ofthe cannula (KA), and that the separation mechanism separates the cannula (KA) from the syringe body (SK).(Fig. 5B)
    公开号:SE1300677A1
    申请号:SE1300677
    申请日:2013-10-30
    公开日:2015-05-01
    发明作者:Lennart Hverén
    申请人:Danderyds Snickeri Ab；
    IPC主号:
    专利说明:

    1PROCEDURE AND DEVICE FOR INCREASING SAFETY WHEN REMOVING A NEEDLE FROM A SYRINGETechnical field of the inventionThe present invention relates to a processto increase the safety of removing a cannula from a syringe, the cannula being removed from the syringe by a separation mechanism.
    The state of the artEP 2 420 279 discloses a cannula remover which comprises a separation mechanism for separating a cannula from a syringe. To effect separation of the needle from the syringe, insert the needle attached to the syringe into areceiver part of the cannula remover and by manual rotation of the receiver part an activation of the separation mechanism takes place. It has been stated from the authority's hall that there is a risk that the user may stick himself on the needle in connection with the needle remover being used to remove the needle from the syringe.otherwise.
    OBJECTS AND FEATURES OF THE INVENTIONA primary object of the present invention is to provide a safety arrangement integrated with the syringe which reduces the risk of stab injuries to the operator.
    A further object of the present invention is that the security arrangement should be user-friendly.
    Another object of the present invention is that the security arrangement should be inexpensive.
    A further object of the present invention isthat the device is preferably of a disposable type, whereby the hygiene is extremely high.
    At least the primary object of the present invention is realized by means of a method and an apparatuswhich has obtained the features specified in the following independent claims. Preferred embodiments of the invention are defined in the dependent claims.2Brief description of the drawingsHereinafter, a preferred embodiment of the invention will be described with reference to the accompanying drawings, in which:Fig. 1A shows a first perspective view of a root and a sleeve forming part of the device according to the present invention;Fig. 1B shows a second perspective view of a tube and a sleeve forming part of the device according to the present inventioninvention;Fig. 2A shows a perspective view of the device according topresent invention, i.e. ndr sleeve to be mounted on the rudder;Fig. 2B shows a section along IIB-IIB in Fig. 2F;Fig. 2C shows an enlarged detail of the part enclosed by the circle IIC in Fig. 2B;Fig. 2D shows a side view of the device according to the present invention, a part of the sleeve being cut away; Fig. 2E shows an enlarged detail of the part enclosed bycircle IIE in Fig. 2D;Fig. 2F shows a section after IF-IF in Fig. 2D;Fig. 3A shows a side view of the device according to the presentinvention when mounted on a syringe;Fig. 3B shows a section along IIIB-IIIB in Fig. 3D;Fig. 3C shows an enlarged detail of the part enclosed bythe circle IIIC-IIIC in Fig. 3B;Fig. 3D shows a section after IIID-IIID in Fig. 3A;Fig. 4A shows a side view of the device according to the presentinvention when mounted on a syringe, whereinthe device encloses a cannula of the syringe;Fig. 4B shows a section after IVB-IVB in Fig. 4D;Fig. 4C shows an enlarged detail of the part enclosed by the circle IVC-IVC in Fig. 4B;Fig. 4D shows a section after IVD-IVD in Fig. 4A;Fig. 5A shows a side view of the device according to the present invention, the device being mounted on a syringe and inserted into a holding member of a cannula remover;Fig. 5B shows a section after VB-VB in Fig. 5D;3Fig. 5C shows an enlarged detail of the part enclosed bythe circle VC-VC in Fig. 5B;Fig. 5D shows a section after CEO in Fig. 5A;Fig. 6A shows a side view of the device according to the presentinvention, wherein the device is mounted on asyringe and inserted into a holding member of a cannula remover, and that the syringe has been imparted downwardly in line with Fig. 5A;Fig. 6B shows a section after VIB-VIB in Fig. 6D;Fig. 60 shows an enlarged detail of the part which is closed by the circle VIC-VIC in Fig. 6B; andFig. 6D shows a section VID-VID in Fig. 6A.
    Detailed Description of a Preferred Embodiment of the InventionAs can be seen from Figs. 1A and 1B, the device according to the present invention comprises a tube 1 and one annular sleeve 3 of one of the tubes 1 which can be mounted. The tube 1 has a length which is several times the length of the sleeve 3. At the shown preferredIn the embodiment, the tube 1 has a length which is approximately four times the length of the sleeve 3. When the sleeve 3 is mounted on the tube 1, the tube 1 and the sleeve 3 are rotatable relative to each other about a common longitudinal center axis.
    In the embodiment shown, the tube 1 has a circular cross-section and its inner diameter is adapted to the outer diameter of the syringe S which the tube 1 is tomounted pa. In the embodiment shown, the sleeve 3 likewise generally has a circular cross-section and an inner diameter which is adapted to the outer diameter of the tube 1 inthe area for the second of the tube 1 on which the sleeve is to be mounted. More specifically, the diameters are so adapted to each other that a sliding fit races between the inner diameter of the sleeve 3 and the outer diameter of the spirit of the tube 1 on which the sleeve 3 is to be mounted.
    Figs. 1A and 1B show perspective views of the rudder 1 andthe sleeve 3. Both the rudder 1 and the sleeve 3 consist of two halves which are mirror-habituated relative to each other, i.e. an imaginary, longitudinal plane of symmetry divides the rudder 1 and the sleeve 3. As can be seen most clearly from Fig. 1A, the rudder 1 is provided with two,4diametrically arranged, groups of parallel slots 11A, 11B, 16A, 16B in the area of one end of the rudder 1. The slots 11A, 11B, 16A, 16B extend in the longitudinal direction of the rudder 1 and have a length which constitutes only a small part of the length of the rudder 1. In itshown is the distance between the slots 11A, 11B and 16A, 16B less than the lengths of the slits 11A, 11B, 16A, 16B. Between adjacent slots 11A, 11B resp. 16A, 16B, a flexible, strip-like portion 14 of the tube 1 is defined, this portion having an extension in the tube 1longitudinal direction which substantially corresponds to the length of the slots 11A, 11B, 16A, 16B. In connection with one of the slots 11A, 16A in the usual group, an external first shaft 12 is arranged which, according to the embodiment shown, has a length which is less than the length of the associated slot 11A, 16A.
    Rudder 1 also has two external diametersplaced, lugs 13 which have a certain extent in the circumferential direction of the rudder 1. Extension of the heels 13 inthe circumferential direction constitutes only a small part of the entire circumference of the rudder 1.
    Fig. 2B shows an internal part, i.e. one half ofthe rudder 1, the inner part of the rudder 1 (not shown) having a corresponding design, i.e. the rudder 1 consists of two halves which are mirror-habituated relative to each other. Fig. 2B shows the two slots 16A, 16B. Figs. 2B and 20 also show an interiorlug 15 which is coated on the flexible portion 14, the lug 15 extending substantially between the slots 16A, 16B in the circumferential direction of the tube 1. According to the shownthe embodiment of the inner lug 15 is located approximately in the middle of the height of the flexible portion 14.
    Figs. 1A and 1B show perspective views of internal partsof the sleeve 3, the sleeve 3 thus consisting of two halves which are mirror-habituated relative to each other. As can be seen from Fig. 2A, the sleeve 3 has at its one end a collar 30 which forms a stop stop when the sleeve 3 is mounted on one end of the tube 1.
    According to the embodiment shown, the sleeve 3 is providedwith two internal recesses 31 which are generally square and coated diametrically opposite each other. The internal recesses 31 have an extension in the longitudinal direction / height direction of the sleeve 3 which approximately corresponds to half of the sleeve 3.hojd. When it comes to the extent of the inner recesses 31 in the circumferential direction of the sleeve 3, it forms only a small part of the inner circumference of the sleeve 3 and in the embodiment shown essentially corresponds to the distance inthe circumferential direction of the rudder 1 between adjacent slots 11A, 11B resp. 16A, 16B. Each of the internal recesses 31 is delimited on one side by a second shaft 32 which has been formed by the cradle thickness of the sleeve 3 tapered in the direction of the recesses 31 in the circumferential direction of the sleeve 3. The othersthe axles 32 extend in the longitudinal direction / height direction of the sleeve 3 and according to the embodiment shown, the other axes 32 have an extension in the longitudinal direction / height direction of the sleeve 3 which constitutes the greater part of the height of the recesses 31.
    The sleeve 3 is provided with two internal first grooves 33 which have an extension in the longitudinal direction / height direction of the sleeve 3. According to the embodiment shown, the length of the spade 33 is somewhat shorter than the height of the associated recess 31.
    As can be seen most clearly from Fig. 1B, the sleeve 3 has internal portions 35 of varying rock thickness inthe circumferential direction. These portions 35 are arranged in connection with the recesses 31 and in the same part of the height of the sleeve 3. The portions 35 have their smallest rock thickness in connection with the depressions 31 and, as noted above, the other Asars 32 are formed. These portions 35 have an increasing rock thickness indirection away from the other axes 32 and exits in approximately the middle between a second axle 32 and an internal first groove 33.
    The sleeve 3 is provided with two internal second slots 34 whichextends in the circumferential direction of the sleeve 3 and is coatedapproximately at the half height of the sleeve 3. The length of the second spar 34 is shorter than the circumferential distance between adjacent edges of the two diametrical recesses 31 and according to the embodiment shown, the length of the second spar 34 is approximately 2/3 of the circumferential distance between adjacent edges of the diametricallycovered the depressions 31.
    Figs. 2A-2F show different views, sections and details of how the sleeve 3 is mounted on the tube 1 in a starting position. As most clearly shown in Fig. 2F, the sleeve 3 is mounted on the tube 1 so that the two recesses 31 have the sleeve 3 located6In the middle, the flexible portions 14 of the tube 1. In order to facilitate the correct mounting of the sleeve 3 on the tube 1, the sleeve 3 is provided with tongues 36 in the middle of the pipe depressions 31. When the sleeve 3 is completely pushed into the tube 1, the externalthe lugs 13 of the rudder 1 engage the other grooves 34 of the sleeve 3. This is most clearly shown in Figs. 2C and 2E.
    When the tube 1 and the sleeve 3 are in the composite layer shown in Figs. 2A-2F, the tube 1 and the sleeve 3 on a syringe body SK have a syringe S. This is shown in Figs. 3A-3D.
    Before the tube 1 and the sleeve 3 are applied to the syringe body SKan ampoule is mounted in a space in the SK syringe body. This is not shown in Figs. 3A-3D. As can be seen from Figs. 3A and 3B, the sleeve 3 is preferably brought into abutment against a flange FL having the syringe S.
    When the tube 1 and the sleeve 3 are fitted with the syringe body SKmount a cannula KA on the syringe body SK, see Fig. 4B. When the tube 1 and the sleeve 3 are in the layer shown in Figs. 3A and 35 and a cannula KA is mounted on the syringe body SK, injection with the syringe S can take place, whereby normal anesthetic meansinjected into the oral cavity has a patient who is has the dentist.
    When the injection is completed, the tube 1 and the sleeve 3 are displaced to the layer shown in Figs. 4A and 4B, where the inner lugs 15 have the tube 1 accommodated in a front end of the syringe body SK, i.e. the Spirit where the cannula KA is mounted,going third spar SP. When displacing the tube 1 and the sleeve 3 from the layer shown in Figs. 3A and 3B to the layer shown in Figs. 4A and 4B, the user marks when the correct layer according to Figs. 4A and 4B has been reached by the lugs 15 clicking in the third groove. SP. To further anchor the rudder 1 andthe sleeve 3 on the syringe body SK then an inboard rotation of the tube 1 and the sleeve 3. Through a comparative study of Fig. 2F and Fig. 4D it is understood that the tube 1 has been rotated 900 relative to the sleeve 3, the rotation of the tube 1 taking place counterclockwise while the sleeve 3 has not been twisted. In this case, the external shaft 12 has the rudder 1clicked in the internal first spar 33 has sleeve. As an alternative to turning the tube 1, the sleeve 3 can be rotated while the tube 1 is not rotated.
    At the above-described inboard rotation between the tube 1 and the sleeve 3 becomes thicker at the joint according to Fig. 4D7rocker portions of the sleeve 3 to be located opposite the flexible portions 14 of the tube 1. Thereby, these thicker rocker portions will exert a clamping effect on the flexible portions14 said that these press against the syringe body SK. Because theythe inner lugs 15 are bellows on the inside of the flexible portions 14, this clamping action will press in the lugsin the third spared SP at the splash body SK. As a result, the rudder 1 is completely fixed relative to the splash body SK.
    The syringe S with the rudder 1 and the sleeve 3 is now ready toused in a cannula remover and this will be described schematically below.
    Figs. 5A-5D show a holding member HO, in the form of a sleeve, which forms part of a cannula remover described in SE 535 606 C2. For more detailed information on how the removalof the cannula KA from the syringe body SK is referred to the specified document. However, when it comes to the method and device of the present invention, only the holding member HO is of interest.
    As can be seen most clearly from Fig. 5B and the 50 syringe Swith the tube 1 and the sleeve 3 down into the holding member HO, the spirit of the sleeve 3 being pushed on the tube 1 coming into abutment against an internal first abutment surface AY1 of the holding member HO. According to the embodiment shown, the inner first abutment surface AY1 extends around the holder memberHO entire internal cylindrical space, ie. the internal abutment surface AY1 is generally coated in a plane which extends perpendicular to the longitudinal direction of the HO member. The abutment of the sleeve 3 against the holding member HO is shown in Figs. 5B and 50.
    Fig. 5B also shows that a certain inboard has taken placedisplacement between the rudder 1 and the sleeve 3, i.e. The tube 1 has been displaced down a distance which is approximately equal to half the height of the sleeve 3. This inboard displacement between the rudder 1 and the sleeve 3 is initiated by the fact that the syringe S has been displaced by the operator a certain distance downwards. Then come the nativesthe engagement of the lugs 15 with the spar SP of the syringe body SK to bring the tube 1 when the syringe S is displaced downwards. Since the shafts 12 of the rudder 1 are accommodated in the first grooves 33 of the sleeve 3, the shafts 12 will slide in the first grooves 33 when the rudder 1 shifts relative to the sleeve 3.8Upon further displacement downwards of the syringe S, see Figs. 6A and 6B, the lower end of the rudder 1 abuts against a second abutment surface AY2 having the holding member HO, this second abutment surface AY2 being coated at the lower end of the holding member HO.
    This prevents the lower end of the tube 1 from being displaced downwards past the lower end of the HO member.
    Figs. 6A-6D show how the syringe S has been displaced to a lower abutment in the holding member HO, whereby a flange FL of the syringe S comes into abutment against the carrying spirit of the sleeve 3.the lower surface of the syringe S has been reached. As can be seen from Figs. 6A and 6B, the cannula KA has now been displaced downwards past the lower end of the teat member HO and the separation mechanism of the cannula remover can now effect separation of the cannula KA from the syringe body SK.
    The fit between the rudder 1 and the syringe body SK is theresaw that the rudder 1 and the sleeve 3 follow with the cla syringe S is pulled up from the holding member HO.9
    权利要求:
    Claims (8)
    [1]
    A method for increasing the safety in connection with the removal of a cannula (KA) from a syringe, wherein the cannula (KA) is removed from the syringe (S) by means of a separation mechanism, characterized in that a tube (1) and a tube ( 1) mounted sleeve (3) is mounted on top of a syringe body (SK) of the syringe (S), that a cannula (KA) is mounted on the syringe body (SK) that the tube (1) and the sleeve (3) are displaced in the direction of the needle (KA) said that the tube (1) encloses the cannula (KA), that by means of an inboard rotation of the tube (1) and the sleeve (3) relative to each other there is a clamping of the tube (1) relative to the syringe body (SK), that there is a relative displacement of the tube (1) and the sleeve (3) in the longitudinal direction of the tube (1) in order to have a clamping action between the tube (1) and the syringe body (SK), that the syringe body (SK) is displaced relative to the tube (1) so that the cannula ( KA), and that the separation mechanism separates the cannula (KA) from the syringe body (SK).
    [2]
    Method according to claim 1, characterized in that the layer enclosing the cannula (KA) for the tube (1) and the sleeve (3) is opened when internal engaging means (15) of the tube (1) cooperate with external engaging means (SP) of the syringe body (SK ).
    [3]
    Method according to claim 1 or 2, characterized in that the clamping action between the tube (1) and the syringe body (SK) is achieved by varying rock thickness of the sleeve (3).
    [4]
    A device for increasing the safety in connection with the removal of a cannula (KA) from a syringe, wherein the cannula (KA) is removed from the syringe (S) by means of a separation mechanism, the device comprising a tube (1) and a tube (1). ) one end mounted sleeve (3), characterized in that the tube (1) is provided with a flexible portion (14), that the sleeve (3) has varying rock thickness, that the tube (1) and the sleeve (3) are rotatably inboard relative to each other , and that the tube (1) has engaging means (15) on its inside.
    [5]
    Device according to claim 4, characterized in that the internal engaging means of the rudder (1) is constituted by at least one lug (15).
    [6]
    Device according to claim 1 or 2, characterized in that the tube (1) and the sleeve (3) have mutually cooperating engaging means (13, 34).
    [7]
    Device according to claim 6, characterized in that the engaging means between the pipe (1) and the sleeve (3) consist of external lugs (13) on the pipe (1) and internal grooves (34) of the sleeve (3).
    [8]
    Device according to any one of claims 4-7, characterized in that each of the flexible portions (14) of the rudder (1) is provided by two-slot slots (11A, 11B, 16A, 16B) defining a flexible portion therebetween. (14), and that the slots (11A, 11B, 16A, 16B) extend in the longitudinal direction of the rudder (1). 33 3 RC 16g / 4 16E ftg 33 g2relit 12115- 33 TB Is EF3 F6, z.b 1T: cj 3 D Dr6 3A Tii :, 3C 41, qc SK 3 3 LTD 11001111 Ta
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    同族专利:
    公开号 | 公开日
    WO2015065259A1|2015-05-07|
    EP3062850A4|2017-07-12|
    SE539276C2|2017-06-13|
    EP3062850A1|2016-09-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5997513A|1995-11-22|1999-12-07|Smith; Jerry A.|Syringe cover cooperating with needle cover|
    FR2830765B1|2001-10-15|2004-07-23|Plastic Omnium Cie|SAFETY DEVICE FOR A SYRINGE|
    GB0128691D0|2001-11-30|2002-01-23|Segal Alan J|Syringes|
    CN100418592C|2004-11-09|2008-09-17|陈昌慈|Syringe needle protecting structure|
    US7799002B2|2008-08-14|2010-09-21|Protectus Medical Devices, Inc.|Safety syringe|
    CN102946926B|2010-05-07|2014-12-10|Shl集团有限责任公司|Medicament delivery device|
    SE535606C2|2010-08-19|2012-10-09|Danderyds Snickeri Ab|Cannula needle remover|
    EP2529777A1|2011-05-30|2012-12-05|Sanofi-Aventis Deutschland GmbH|Needle assembly removal device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1300677A|SE539276C2|2013-10-30|2013-10-30|Method and apparatus for increasing safety when removing a cannula from a syringe|SE1300677A| SE539276C2|2013-10-30|2013-10-30|Method and apparatus for increasing safety when removing a cannula from a syringe|
    PCT/SE2014/000128| WO2015065259A1|2013-10-30|2014-10-30|Method and device for increasing the safety in conjunction with the removal of a cannula from a syringe.|
    EP14859162.1A| EP3062850A4|2013-10-30|2014-10-30|Method and device for increasing the safety in conjunction with the removal of a cannula from a syringe|
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