# US 2019/0307979 A1 · An endotracheal tube-inserting device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0307979 A1 - Document ID: US20190307979A1 - Status: Published application - Kind: A1 - Application number: 16/469,109 - Filed: 2017-12-13 - Published: 2019-10-10 - Earliest claimed: 2016-12-14 - Assignees: Allytec AB - Applicants: Allytec AB - Inventors: Annette Arnsäter KARLSSON; Måns COLLNER; Hannes Daniel ULVEGARD; Ronny BRAKHYA - Web page: https://patentgrep.com/patent/US20190307979A1 ## CPC - A61M 16/0488: {Mouthpieces; Means for guiding, securing or introducing the tubes (guiding or introducing with laryngoscopes A61B1/267; holding devices on the body A61M25/02)} - A61B 1/00066: {Proximal part of endoscope body, e.g. handles (A61B1/0052 takes precedence)} - A61B 1/0052: {Constructional details of control elements, e.g. handles} - A61B 1/267: for the respiratory tract, e.g. laryngoscopes or bronchoscopes - A61M 16/0418: {with integrated means for changing the degree of curvature, e.g. for easy intubation} - A61M 25/0102: {Insertion or introduction using an inner stiffening member, e.g. stylet or push-rod} - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract An endotracheal tube inserting device (1;1′) of the kind comprising a stylet part (3; 3′), a handle part (2;2′), and an endotracheal tube (1) on the stylet part (3), and a tube ejecting mechanism (65; 65′) to advance the endotracheal tube off the stylet part (3; 3′) once inserted in the correct position inside the patient's airways. ## Claims ### Claim 1 An endotracheal tube inserting device (1;1′) comprising a stylet part (3;3′), which has a proximal stylet end part (8a;8a′) with a proximal stylet end (8,8′) and an opposite distal stylet end part (7a;7a′) with a distal stylet end (7;7′); and a handle part (2;2′)), wherein the stylet part (3;3′) is stationary in relation to the handle part (2;2′), and an endotracheal tube (86) on the stylet part (3;3′), wherein the endotracheal tube inserting device (1;1′) has a tube ejecting mechanism (65;65′) adapted for displacing the endotracheal tube (86) along the elongate stylet part (3;3′) in a direction towards the distal stylet end (7;7′) of the elongate stylet part (3;3′). ### Claim 2 (depends on 1) The endotracheal tube inserting device (1;1′) according to claim 1, wherein the tube ejecting mechanism (65;65′) comprises a ratchet mechanism (66;66′), which ratchet mechanism (66;66′) comprises a rack part (68;68′) extending along at least a length of the handle part (2;2′) and being arranged opposite a wedge part (69;69′) associated with the stylet part (3;3′) in order to engage the rack part (68;68′). ### Claim 3 (depends on 2) The endotracheal tube inserting device (1;1′) according to claim 2, wherein the wedge part (69;69′) has a tube connector (83;83′) associated with the stylet part (3:3′). ### Claim 4 (depends on 2) The endotracheal tube inserting device (1;1′) according to claim 2, wherein the tube ejecting mechanism (65;65′) comprises a reciprocating third actuator (67;67′) for operating the ratchet mechanism (66;66′). ### Claim 5 (depends on 3) The endotracheal tube inserting device (1;1′) according to claim 3, wherein the tube connector (83;83′) is configured to mate an airway connector (87) of the endotracheal tube (86), preferably the tube connector (83;83′) is a conical tube connector (83). ### Claim 6 (depends on 2) The endotracheal tube inserting device (1) according to claim 2, wherein the rack part (68) has a first stationary rack part (70), a second stationary rack part (71;71′), and a moveable third rack part (72) arranged lengthwise between the first stationary rack part (70) and the second stationary rack part (71), preferably said rack parts are elongate, preferably said rack parts follows the curvature of a housing (9) of the handle part (2). ### Claim 7 (depends on 6) The endotracheal tube inserting device (1) according to claim 6, wherein the moveable third rack part (72) has the third actuator (67) arranged to protrude from the handle part (2), optionally from the housing (9) of the handle part (2). ### Claim 8 (depends on 6) The endotracheal tube inserting device (1;1′) according to claim 6, wherein the stationary rack parts (70;70′;71;71′) are integrally formed with the handle part (2;2′), optionally with the housing (9,9′) of the handle part (2,2′). ### Claim 9 (depends on 6) The endotracheal tube inserting device (1;1′) according to claim 6, wherein the moveable third rack part 72;72′) and/or a feeder component configured to displace the wedge part towards the distal stylet end is resiliently suspended inside the handle part (2;2′) by means of a retraction means or a resilient means, preferably by means of a respective spring member (75;145;146). ### Claim 10 (depends on 2) The endotracheal tube inserting device (1;1′) according to claim 2, wherein the wedge part (69;69′)) is provided with opposite lateral wedge parts (80,81;138a,138b;138a′,138b′) and a center wedge part (79;141;141′) located between said lateral wedge parts (80;81;138a,138b;138a′,138b′). ### Claim 11 (depends on 10) The endotracheal tube inserting device (1) according to claim 10, wherein the lateral wedge parts (80;81) and the center wedge part (79) are provided at the wedge part at a proximal end (82) of the wedge part (69), optionally the tube connector (83) is provided at the opposite distal end of the wedge part (69). ### Claim 12 (depends on 6) The endotracheal tube inserting device (1;1′) according to claim 6, wherein the first stationary rack part (70;70′) has first teeth (76;123′), and the second stationary rack part (71;71′) has second teeth (77;123″), optionally the moveable third rack part (72) has third teeth (78). ### Claim 13 (depends on 10) The endotracheal tube inserting device (1′) according to claim 10, wherein the lateral wedge parts (138a,138b;138a′,138b′) and the center wedge part (141;141′) are provided at the wedge part (69′) between the proximal end of the wedge part (69) and the distal end of the wedge part (69′), optionally the tube connector (83′) is provided at the proximal end of the wedge part (69′). ### Claim 14 (depends on 12) The endotracheal tube inserting device (1) according to claim 12, wherein the opposite lateral wedge parts (80,81;138a,138b;138a′,138b′1) can engage the first teeth (76;123′) and the second teeth (77;123″). ### Claim 15 (depends on 12) The endotracheal tube inserting device (1;1′) according to claim 12, wherein any of the first teeth, second teeth, and third teeth are tapering, such as pointed, blunt, or crest-shaped. ### Claim 16 (depends on 9) The endotracheal tube inserting device (1′) according to claim 9, wherein the ratchet mechanism (66;66′) comprises that a. the feeder component (129) is configured with the third actuator (67′), b. the wedge part (69′) is slidable received by the feeder component (12) and slidable mounted on the stylet part (3′), c. the wedge part (69′) has a shaft bearing (134) that extends crosswise a first wedge face (132) facing the stationary rack parts (70′;71′) and an opposite second wedge face (133), d. the shaft bearing (134) is configured for pivotably receiving a pivoting pawl member (137;137′), e. which pivoting pawl member (137;137′) has means to engage at least the feeder component (129) to drive the wedge part (69′) towards the distal stylet end (7′). ### Claim 17 (depends on 9) The endotracheal tube inserting device (1′) according to claim 9, wherein the interior of the housing (9′) is configured with a first internal track (125) for slidingly receiving a first sliding flange (126) of the wedge part (69′), and a second internal track (128) for slidingly receiving the feeder component (129), which feeder component (129) has a third internal track (130) for receiving a second sliding flange (131) of the wedge part (69′). ### Claim 18 (depends on 16) The endotracheal tube inserting device (1′) according to claim 16, wherein the pivoting pawl member (137;137′) is suspended on a shaft (127). ### Claim 19 (depends on 18) The endotracheal tube inserting device (1′) according to claim 18, wherein the pivoting pawl member (137;137′) includes that a. the first lateral wedge part (138a) is provided as a first lateral pawl member (138a′), which is pivotable and slidable arranged in the first internal track (125), and b. the opposite second lateral wedge part (138b) is provided as a second lateral pawl member (138b′), which is pivotable and slidable arranged in the third internal track (130). ### Claim 20 (depends on 19) The endotracheal tube inserting device (1′) according to claim 19, wherein the opposite first and second lateral pawl members (138a;138b;138a′;138b′) protrude from respective opposite free ends (139a;139b) of a main body (136) of the pawl member (137;137′) substantially perpendicular to the axis (X) of said main body (136). ### Claim 21 (depends on 19) The endotracheal tube inserting device (1′) according to claim 19, wherein the opposite first and second lateral pawl members (138a,138b;138a′,138b′) are independently pivotable. ### Claim 22 (depends on 19) The endotracheal tube inserting device (1′) according to claim 19, wherein a center pawl member (141;141′) protrudes substantially perpendicular to the axis (X) of the main body (136) between said first and second lateral pawl members (138a,138b;138a′,138b′) and angularly displaced on the main body (136) from said first and second lateral pawl members (138a,138b;138a′,138b′). ### Claim 23 (depends on 22) The endotracheal tube inserting device (1′) according to claim 22, wherein the center pawl member (141′) has a first center pawl member (141a) integral with the first lateral pawl member (138a) and a second central pawl member (141b) integral with the second lateral pawl member (138b). ### Claim 24 (depends on 1) The endotracheal tube inserting device (1;1′) according to claim 1, wherein the tube ejecting mechanism (65;65′) has means for returning an endotracheal tube (86) that has been displaced towards the distal stylet end back in the direction towards the proximal stylet end. ### Claim 25 (depends on 24) The endotracheal tube inserting device (1,1′) according to claim 24, wherein the means for returning an endotracheal tube that has been displaced towards the distal stylet end back in the direction towards the proximal stylet end includes that the first teeth (76;123′) of the first stationary rack part (70;70′) and the second teeth (77;123″) of the second stationary rack part together (71;71′) define an elongate rack part groove (122) for receiving and engaging fourth teeth (123′″) of an elongate moveable fourth rack part (115) that faces the combined first teeth and second teeth, which moveable fourth rack part (115) optionally has a fourth actuator (116) protruding outside the housing (9;9′) for, upon actuation, returning the wedge part (69;69′) towards the proximal stylet end. ### Claim 26 (depends on 25) The endotracheal tube inserting device (1′) according to claim 25, wherein the center pawl member (141′) is pivotable and slidable arranged on the main body between the opposite first and second lateral pawl members (138a;138b) above a back side (142) of the moveable fourth rack part (115) located in said elongate rack part groove (122), which back side (142) of the elongate moveable fourth rack part (115) is the side opposite the fourth teeth (123′″). ### Claim 27 (depends on 22) The endotracheal tube inserting device (1′) according to claim 22, wherein the first wedge face (132) has an indent (144) or stop associated with the main hearing part (134), which indent (144) or stop is adapted for accommodating and restraining a spring arm (143;143′) protruding from the main body (136) of the pivoting pawl member (137;137′), which spring arm (143;143′) protrudes angularly displaced from both the first and the second lateral pawl members (138a,138b;138a′,138b′) and from the center pawl member (141;141′) in an angular direction opposite to the center pawl member (141;141), optionally in substantially the same plane as the center pawl member (141). ### Claim 28 (depends on 27) The endotracheal tube inserting device (1′) according to claim 27, wherein the indent or stop (144) is a recess branching from a main bearing part of the shaft bearing (134). ### Claim 29 (depends on 19) The endotracheal tube inserting device (1′) according to claim 19, wherein at least one of the opposite lateral pawl members (138a,138b;138a′,138b′) are provided with friction increasing pads (140a;140b) to increase friction when the lateral pawl members (138a,138b;138a′,138b′) moves in the first internal track (125) and the third internal track (130) of the housing (9′) and of the feeder component (129), respectively. ### Claim 30 (depends on 12) The endotracheal tube inserting device (1;1′) according to claim 12, wherein the first teeth (76;123′) and the second teeth (77;123″) are formed integral with the handle part (2;2′) on an interior face of the handle part (2;2′). ### Claim 31 (depends on 1) The endotracheal tube inserting device (1;1′) according to claim 1, wherein the handle part (2;2′) is adapted for operating the stylet part (3;3′) and the tube ejecting mechanism (65;65′) and further comprises one or more of, the proximal stylet end (8;8′) is situated at the handle part (2;2′), and the distal stylet end (7;7′) has an extension in form of a bendable tip part (6;6′) with a free distal end (95;95′), a tip part operating member 6;16′) includes at least a first string member (0) and a second string member (11) arranged along the length of at least a length of the stylet part (3;3′), the handle part (2;2′) has an actuator means (15;15′) for operating at least the tip part operating member (16;16′), the first string member (10) has a first proximal string end (30a;30a′) connected to a first string operating member (18;18′) of the actuator means (15;15′) and an opposite first distal string end (30b;30b′) secured at a first string-securing location (9393′) at the bendable tip part (6;6′), the second string member (11) has a second proximal string end (38a;38a′) connected to a second string operating member (19;19′) of the actuator means (15;15′) and an opposite second distal string end (38b;38b′) secured at a second string-securing location (94;84′) at the bendable tip part (6;6′), which second string-securing location (94;94′) is different from the first string-securing location (93;93′), and the stylet part (3;3′) comprises an elongate guide member (4;4′) that extends into the bendable tip part (6;6′), which elongate guide member (4;4′) and bendable tip part (6;6′) lengthwise encases, supports or guides at least a part of the first string member (10) and at least a part of the second string member (11). ### Claim 32 (depends on 31) The endotracheal tube inserting device (1;1′) according to claim 31, wherein the elongate guide member (4;4′) is a curved pipe. ### Claim 33 (depends on 31) The endotracheal tube inserting device (1;1′) according to claim 31, wherein the bendable tip part (6;6′) includes a tubular cover (12) that accommodates a tip-shaping member (5;5′) to which the first distal string end (30b;30b′) and the second distal string end (38b;38b′) are individually attached at the respective first string-securing location (93;93′) and second string-securing location (94;94′). ### Claim 34 (depends on 31) The endotracheal tube inserting device (1) according to claim 31, wherein the first string operating member (18) of the actuator means (15) includes a first lever body (20) arranged about a first pivot axis (P1), and the second string operating member (19) of the actuator means (5) includes a second lever body (22) pivotably arranged about a second pivot axis (P2), a. said first lever body (20) has at least one first actuator lever arm (23) extending from the first pivot axis (P1) to a first actuator (24), and at least one opposite first string operating lever arm (25) at which the first proximal string end (30a) is operatively connected to change the position of the first distal string end (30b) relative to at least the distal stylet end (7) in response to actuating the first actuator (24), b. said second lever body (22) has at least one second actuator lever arm (31) extending from the second pivot axis to a second actuator (32), and at least one opposite second string operating lever arm (33) to which the second proximal string end (38a) is operatively connected to change the position of the second distal string end (38b) relative to at least the distal stylet end (7) in response to actuating the second actuator (32). ### Claim 35 (depends on 34) The endotracheal tube inserting device (1) according to claim 34, wherein the housing (9) of the handle part accommodates at least the first lever body (20) and the second lever body (22), which housing (9) has a first opening (63) for making the first actuator (24) accessible to pivot the first lever body (20) from outside the housing (9), and a second opening (64) for making the second actuator (32) accessible to pivot the second lever body (22) from outside the housing (9). ### Claim 36 (depends on 34) The endotracheal tube inserting device (1) according to claim 34, wherein the first lever body (20) is pivotably suspended to move a first string-securing member (29) of the housing (9) and the second lever body is pivotably suspended to move a second string-securing member (37) of the housing (9), and wherein the first string-securing member (29) is arranged spaced from the first pivot axis (P1), and the second string-securing member (37) is arranged spaced from the second pivot axis (P2). ### Claim 37 (depends on 6) The endotracheal tube inserting device (1′) according to claim 6, wherein the housing (9′) is a curved tubular body (13′;14′).