Trachea cannula and screwed pipe joint

Abstract

The utility model discloses a trachea cannula and screwed pipe joint, and particularly relates to the technical field of anesthesia trachea cannula connection, the trachea cannula and screwed pipe joint comprises a joint assembly used for connecting a screwed pipe and a trachea cannula of an anesthesia machine, and the joint assembly comprises a first joint, a second joint and a sealing ring arranged between the first joint and the second joint. The first connector sequentially comprises a shell, an inner cylinder and a threaded cylinder from outside to inside, the shell, the inner cylinder and the threaded cylinder are movably connected with one another, a plurality of inserting blocks are arranged at the top of the shell, a plurality of inserting grooves matched with the inserting blocks are formed in the top of the threaded cylinder, and when the shell rotates, the threaded cylinder cannot be driven to rotate; when the outer shell is pressed to enable the inserting block to be inserted into the inserting groove, the outer shell is rotated to drive the threaded cylinder to rotate. The second connector comprises a threaded ring. According to the utility model, the threaded tube and the trachea cannula are effectively prevented from accidentally falling off, and the safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to anesthetic tracheal cannula connection technical field, concretely relates to a tracheal cannula and threaded pipe joint. BACKGROUND

[0002] Anesthesia machine is a kind of medical equipment for providing anesthesia in surgical process, it can accurately control and monitor the supply of anesthetic and gas, ensure that patient remains painless and unconscious state during operation. When tracheal cannula patient is anesthetized, the interface of tracheal catheter is connected with the breathing circuit of anesthesia machine, and the gas exchange between anesthesia machine and patient is realized through tracheal cannula during anesthesia. Anesthesia machine is directly inserted with the corresponding part of tracheal cannula to ensure that anesthetic gas and oxygen can be delivered to the lung of patient, while carbon dioxide is discharged.

[0003] At present, threaded pipe and tracheal cannula of anesthesia machine are directly plugged when being connected, and the stability is poor, accidental touch and pulling of surrounding personnel can easily lead to frequent falling of the connection between the two, and the restlessness and struggle of patient during operation and recovery process can also easily lead to the falling of pipe joint, based on this, the utility model provides an anesthetic tracheal cannula joint between threaded pipe and tracheal cannula which is not easy to fall off. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a tracheal cannula and threaded pipe joint, effectively avoid the accidental falling of threaded pipe and tracheal cannula, improve safety.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a tracheal cannula and threaded pipe joint, including the joint assembly for connecting threaded pipe and tracheal cannula, the joint assembly includes joint one, joint two, the sealing ring arranged between joint one and joint two, and the sealing ring is used for sealing the connecting place of threaded pipe and tracheal cannula.

[0006] The joint one includes shell, inner cylinder and threaded cylinder from outside to inside in proper order, the shell, inner cylinder and threaded cylinder are movably connected with each other, the inner wall of threaded cylinder is processed with internal thread, the top of shell is provided with a plurality of insertion blocks, and the top of threaded cylinder is provided with a plurality of insertion grooves matched with insertion blocks, when shell rotates, threaded cylinder will not rotate, and when pressing shell to make insertion block insert into insertion groove, rotating shell can drive threaded cylinder to rotate, effectively avoid the accidental falling of threaded pipe and tracheal cannula.

[0007] The joint two includes threaded ring, the outer wall of threaded ring is processed with external thread matched with internal thread of threaded cylinder, so as to facilitate the connection of threaded ring and threaded cylinder.

[0008] Preferably, the shell is fixed outside one end of the threaded tube, the threaded ring is fixed outside one end of the tracheal cannula, when the tracheal cannula is inserted into the threaded tube, the threaded ring is screwed into the threaded cylinder, at this time, the outer wall of the threaded ring is screwed with the inner wall of the threaded cylinder.

[0009] Preferably, the outer wall of the inner cylinder is provided with an annular sliding groove one, the inner wall of the shell is integrally formed with a sliding ring one, and the sliding ring one is slidingly arranged in the annular sliding groove one.

[0010] Preferably, the outer wall of the threaded cylinder is provided with an annular sliding groove two, the inner wall of the inner cylinder is integrally formed with a sliding ring two, and the sliding ring two is slidingly arranged in the annular sliding groove two.

[0011] Preferably, the inner wall of the threaded cylinder is integrally formed with a limiting ring above the internal thread, and the limiting ring is arranged at the top of the threaded ring.

[0012] Preferably, the outer wall of one end of the threaded ring is integrally formed with a convex ring, the convex ring is arranged outside the joint one, and the sealing ring is arranged between the inner cylinder and the convex ring.

[0013] Preferably, a plurality of elastic components are arranged outside the plug block in the shell, the elastic component comprises a spring, both ends of the spring are fixed with sliding blocks, and the ends of the sliding blocks away from the spring are fixed with rolling balls.

[0014] Preferably, the inner top of the shell is provided with an annular sliding groove three outside the plug block, the top of the inner cylinder is also provided with an annular sliding groove three, the two sliding blocks in each elastic component are slidingly arranged in the two annular sliding grooves three respectively, and the two rolling balls in each elastic component are rollingly arranged in the two annular sliding grooves three respectively, the inner cylinder is pressed by the elastic force of the spring to press the sealing ring, the sealing property of the connection between the threaded tube and the tracheal cannula is improved, and the sliding blocks and the rolling balls can rotate along the annular sliding grooves three.

[0015] In the above technical scheme, the technical effects and advantages of the utility model are provided:

[0016] 1. After the threaded tube and the tracheal cannula are connected, in the normal state, without external force pressing the shell, rotating the shell will not drive the threaded cylinder to rotate, only by pressing the shell to make the plug block inserted into the plug slot, the threaded cylinder can be rotated by rotating the shell, the threaded cylinder and the threaded ring are separated, and then the threaded tube and the tracheal cannula can be pulled out, effectively avoiding the threaded tube and the tracheal cannula from falling off accidentally, and improving the safety.

[0017] 2. After the threaded tube and the tracheal cannula are connected, the connection between the threaded tube and the tracheal cannula is in the joint assembly and is sealed by the sealing ring, at the same time, the elastic force of the spring also presses the inner cylinder to press the sealing ring, thereby improving the sealing property of the connection between the threaded tube and the tracheal cannula. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 This is a schematic diagram of the connection between the threaded tube and the endotracheal tube of the present invention;

[0019] Figure 2 This is a schematic diagram of the threaded tube and endotracheal tube of the present invention;

[0020] Figure 3 This is a cross-sectional view of the connector assembly when the housing and the threaded barrel are not connected;

[0021] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0022] Figure 5 This is a cross-sectional view of the connector assembly when the housing and the threaded barrel are connected;

[0023] Figure 6 This is a cross-sectional view of the connector assembly of the present invention;

[0024] Figure 7 This is a cross-sectional view of the shell of the present utility model.

[0025] Description of reference numerals:

[0026] 1 connector assembly;

[0027] 2 connector 1, 21 housing, 22 inner tube, 23 threaded tube, 24 insert, 25 slot, 26 annular slide 1, 27 slip ring 1, 28 annular slide 2, 29 slip ring 2, 21 limit ring, 211 annular slide 3;

[0028] 3 connector 2, 31 threaded ring, 32 convex ring;

[0029] 4 sealing rings;

[0030] 5 elastic component, 51 spring, 52 slider, 53 ball;

[0031] 6. Tracheal tube, 7. Threaded tube. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] The utility model provides Figures 1-2 The endotracheal tube and threaded pipe joint shown includes a joint assembly 1 for connecting a threaded pipe 7 of an anesthesia machine and an endotracheal tube 6, wherein the joint assembly 1 includes a joint 1 2 and a joint 2 3.

[0034] Specifically, such as Figure 3 、 6As shown in Figure 7, the joint 2 includes an outer shell 21, an inner tube 22 and a threaded tube 23 from the outside to the inside. The outer shell 21 is fixed to the outside of one end of the threaded tube 7. The inner wall of the threaded tube 23 is processed with an internal thread. The outer wall of the inner tube 22 is provided with an annular slide groove 26. The inner wall of the outer shell 21 is integrally formed with a slip ring 27, and the slip ring 27 is slidably arranged in the annular slide groove 26. The outer wall of the threaded tube 23 is provided with an annular slide groove 28. The inner wall of the inner tube 22 is integrally formed with a slip ring 29, and the slip ring 29 is slidably arranged in the annular slide groove 28, so that the outer shell 21, the inner tube 22 and the threaded tube 23 are movably connected to each other.

[0035] A plurality of insert blocks 24 are provided on the top of the housing 21, and a plurality of slots 25 are provided on the top of the threaded barrel 23 to match the insert blocks 24. Normally, rotation of the housing 21 does not drive the threaded barrel 23 to rotate. However, when the housing 21 is pressed so that the insert blocks 24 are inserted into the slots 25, rotating the housing 21 can drive the threaded barrel 23 to rotate.

[0036] like Figure 3 and 6 As shown, the connector 2 3 includes a threaded ring 31, which is fixed to the outside of one end of the endotracheal tube 6. The outer wall of the threaded ring 31 is processed with an external thread that is compatible with the internal thread. When the endotracheal tube 6 is inserted into the threaded tube 7, the threaded ring 31 is screwed into the threaded barrel 23. At this time, the outer wall of the threaded ring 31 is threadedly connected to the inner wall of the threaded barrel 23, and a limiting ring 210 is integrally formed on the inner wall of the threaded barrel 23 above its internal thread. The limiting ring 210 is provided at the top of the threaded ring 31.

[0037] Moreover, if Figure 3 、 4 As shown in Figures 6 and 7, multiple groups of elastic components 5 are provided within the housing 21, outside the insert block 24. The elastic components 5 include springs 51, with sliders 52 fixed at both ends of the springs 51. A ball bearing 53 is fixed to the end of the slider 52 away from the spring 51. An annular groove 211 is defined at the top of the interior of the housing 21, outside the insert block 24. An annular groove 211 is also defined at the top of the inner cylinder 22. The two sliders 52 in each group of elastic components 5 slide within the two annular grooves 211, respectively, and the two balls 53 in each group of elastic components 5 roll within the two annular grooves 211, respectively. When the housing 21 rotates, the sliders 52 and balls 53 roll within the annular grooves 211, preventing them from affecting the rotation of the housing 21.

[0038] When the threaded tube 7 and the tracheal cannula 6 are connected, the tracheal cannula 6 is inserted into the threaded tube 7, and at the same time, the threaded ring 31 is inserted into the threaded cylinder 23, so as to extrude the threaded cylinder 23 and the shell 21, so that the plug 24 in the shell 21 is inserted into the slot 25, and then the shell 21 is rotated to drive the threaded cylinder 23 to rotate, so that the threaded cylinder 23 is threadedly connected with the threaded ring 31, the connection stability of the threaded tube 7 and the tracheal cannula 6 is improved through the thread;

[0039] In the normal state, without external force pressing the shell 21, the shell 21 is separated from the threaded cylinder 23 under the elastic force of the spring 51, that is, the plug 24 is separated from the slot 25, and the shell 21 cannot drive the threaded cylinder 23 to rotate when the surrounding personnel accidentally touch or rotate the shell 21. Only when the plug 24 is inserted into the slot 25 by pressing the shell 21, the threaded cylinder 23 can be rotated by rotating the shell 21, so that the threaded cylinder 23 is separated from the threaded ring 31, and then the threaded tube 7 and the tracheal cannula 6 can be pulled out, so that the threaded tube 7 and the tracheal cannula 6 are effectively prevented from being accidentally detached, and the safety is improved.

[0040] After the threaded tube 7 and the tracheal cannula 6 are connected, the connection part of the threaded tube 7 and the tracheal cannula 6 is located in the joint one 2 and the joint two 3, and further, in order to improve the sealing performance of the connection part of the threaded tube 7 and the tracheal cannula 6, as shown in Figure 2 、 3 and 6, the sealing ring 4 is arranged between the joint one 2 and the joint two 3, the convex ring 32 is integrally formed on the outer wall of one end of the threaded ring 31, the convex ring 32 is arranged outside the joint one 2, the sealing ring 4 is arranged between the inner cylinder 22 and the convex ring 32, and the joint one 2 and the joint two 3 are sealed through the sealing ring 4; at the same time, the inner cylinder 22 is extruded by the elastic force of the spring 51, so that the inner cylinder 22 extrudes the sealing ring 4 to improve the sealing performance between the inner cylinder 22 and the convex ring 32, so as to improve the sealing performance of the connection part of the threaded tube 7 and the tracheal cannula 6.

[0041] The above only describes some exemplary embodiments of the present application in a descriptive manner, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. An endotracheal tube and threaded tube fitting, characterized by, A connector assembly (1) for connecting a threaded tube (7) of an anesthesia machine and an endotracheal tube (6), wherein the connector assembly (1) comprises a first connector (2), a second connector (3), and a sealing ring (4) disposed between the first connector (2) and the second connector (3); The connector 1 (2) comprises an outer shell (21), an inner cylinder (22) and a threaded cylinder (23) from the outside to the inside. The outer shell (21), the inner cylinder (22) and the threaded cylinder (23) are movably connected to each other. The inner wall of the threaded cylinder (23) is processed with an internal thread. A plurality of plug-in blocks (24) are provided on the top of the outer shell (21), and a plurality of slots (25) matching the plug-in blocks (24) are provided on the top of the threaded cylinder (23). When the outer shell (21) is rotated, the threaded cylinder (23) will not be driven to rotate. However, when the outer shell (21) is pressed to insert the plug-in blocks (24) into the slots (25), the outer shell (21) can be rotated to drive the threaded cylinder (23) to rotate. The second joint (3) comprises a threaded ring (31), and the outer wall of the threaded ring (31) is processed with an external thread that matches the internal thread of the threaded barrel (23).

2. A tracheal tube and threaded connector according to claim 1, wherein, The outer shell (21) is fixed to the outside of one end of the threaded tube (7), and the threaded ring (31) is fixed to the outside of one end of the tracheal tube (6). When the tracheal tube (6) is inserted into the threaded tube (7), the threaded ring (31) is screwed into the threaded barrel (23), and at this time, the outer wall of the threaded ring (31) is threadedly connected to the inner wall of the threaded barrel (23).

3. An endotracheal tube and threaded tube connector according to claim 1, wherein, The outer wall of the inner cylinder (22) is provided with an annular sliding groove (26), and the inner wall of the outer shell (21) is integrally formed with a slip ring (27), and the slip ring (27) is slidably arranged in the annular sliding groove (26).

4. An endotracheal tube and threaded tube connector according to claim 1, wherein, The outer wall of the threaded cylinder (23) is provided with an annular sliding groove (28), and the inner wall of the inner cylinder (22) is integrally formed with a sliding ring (29), and the sliding ring (29) is slidably arranged in the annular sliding groove (28).

5. An endotracheal tube and threaded tube connector according to claim 1, wherein, A limiting ring (210) is integrally formed on the inner wall of the threaded barrel (23) above the internal thread thereof, and the limiting ring (210) is arranged on the top of the threaded ring (31).

6. A tracheal tube and threaded connector according to claim 1 wherein, A convex ring (32) is integrally formed on the outer wall of one end of the threaded ring (31), and the convex ring (32) is arranged outside the first joint (2). The sealing ring (4) is arranged between the inner cylinder (22) and the convex ring (32).

7. A tracheal tube and threaded connector according to claim 1 wherein, A plurality of elastic components (5) are provided in the housing (21) outside the insert block (24), the elastic components (5) comprising a spring (51), sliders (52) being fixed at both ends of the spring (51), and a ball (53) being fixed at one end of the slider (52) away from the spring (51).

8. A tracheal tube and threaded connector according to claim 7, wherein, The top end of the inner portion of the outer shell (21) is located outside the plug block (24) and is provided with an annular slide groove three (211). The top end of the inner tube (22) is also provided with an annular slide groove three (211). The two sliders (52) in each group of elastic components (5) are respectively slidably arranged in the two annular slide grooves three (211), and the two balls (53) in each group of elastic components (5) are respectively rolled in the two annular slide grooves three (211).

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