Patent SG-11201901647W-A (SG)
Title: A welding apparatus having a safety feature
Inventor: JANSSON PER
IPC: B29L31/00
Filed: 2017-08-15
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 1#1110111101110101011111 0110101011111111011111111111111111111111111110111111 Organization International Bureau (10) International Publication Number (43) International Publication Date .....0\"\" WO 2018/041627 Al 08 March 2018 (08.03.2018) WI P0 I P C T (51) International Patent Classification: (72) Inventor: JANSSON, Per; Hagaberg 315, 193 41 SIGTU- B29C 65/04 (2006.01) A61111 39/00 (2006.01) NA (SE). B29C 65/08 (2006.01) B29L 31/00 (2006.01) (74) Agent: BRANN AB; P 0 Box 3690, 103 59 STOCKHOLM (21) International Application Number: (SE). PCT/EP2017/070667 (81) Designated States (unless otherwise indicated, for every (22) International Filing Date: kind of national protection available): AE, AG, AL, AM, 15 August 2017 (15.08.2017) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (25) Filing Language: English CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (26) Publication Language: English HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, (30) Priority Data: KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, 1651178-4 02 September 2016 (02.09.2016) SE MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (71) Applicant: CONROY MEDICAL AB [SE/SE]; Val- SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, hallavagen 1, 194 63 UPPLANDS VASBY (SE). TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (54) Title: A WELDING APPARATUS , 0 ici HAVING A SAFETY FEATURE 24 /q4_ r 33 3 ° A - _ - -, q b , r r 3/./ Compute / 7/ /5 / 3536 .--- 1 0 3, ' ! r 1111 Fig. 3 (57) : Welding apparatus (10; 30) having a safety feature comprising: two electrodes (11, 12; 21, 22), whereof at least one of ', 0 said two electrodes is movably arranged in relation to the other electrode. The electrodes are in non-contact with each other and define 'IlL ' a gap (13) in which an object (14) provided with an electrically non-conductive surface to be sealed may be inserted. The welding IN apparatus comprises an actuator (15; 25) configured to move at least one electrode when activated to squeeze the object, a detector ei (16; 26) configured to determine a clamping force when the inserted object (14) is squeezed between the electrodes, a distance sensor 1 -1 (17; 23) configured to measure the distance between the electrodes. There is also a conductance sensor (24) configured to measure the 'V conductivity of an object located between the electrodes (11, 12; 21,22) when the object (14) is squeezed, and optionally a position 0 --.... sensor (19b) configured to detect the position of the object (14) inserted between the electrodes. The welding apparatus further comprises c)1: 1-1 a processor configured to process the input from at least one of the detector (16; 26), the distance sensor (17; 23) and the conductance C sensor (24) to provide an output that indicates if there is a blood bag tube inserted between electrodes, or if it is a foreign object. ei C [Continued on next page] WO 2018/041627 Al MIDEDIMOMOIDEIREEMOOVIVOHIMMEREM GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) — before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h))