Patient end connector and ventilation pipeline

Abstract

The utility model relates to the technical field of medical equipment, in particular to a patient end connector and a ventilation pipeline, and the connector comprises a connector body, a circuit board module and a sensor component; an air flow channel is formed in the joint body, an annular step surface and a limiting part are arranged on the outer wall, and the thickness of the limiting part protruding out of the outer wall of the joint body is gradually increased from one end away from the step surface to one end close to the step surface; the circuit board module is of an annular structure and is assembled in the containing space in the thickness increasing direction of the limiting part. The sensor component is installed on the connector body and electrically connected with the circuit board module. The device is applied to the patient end of the heating breathing pipeline and used for being connected with the mouth-nose mask of the patient, and the circuit board module and the sensor component are arranged, so that temperature control of the heating wire in the heating breathing pipeline is conveniently achieved; based on the step surface and the limiting part with the gradient thickness, smooth assembly of the circuit board module is facilitated, and the effects of easy assembly and difficult disassembly are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially relates to a patient end connector and ventilation pipeline. BACKGROUND

[0002] The heating breathing pipeline is a special pipeline used in the medical field, especially in the respiratory treatment. For the patient who needs mechanical ventilation, one end of the heating breathing pipeline can be connected with the mechanical ventilation equipment, and the other end is connected with the patient's oral-nasal mask and makes the mechanical ventilation equipment deliver gas to the patient. The heating breathing pipeline usually has a built-in heating element to heat the gas in the breathing pipeline, so that it is kept in a relatively stable range, preventing the condensation of water vapor in the pipeline due to too low temperature of the breathing gas, and improving the comfort of the patient.

[0003] Because the heating breathing pipeline needs to be powered and heated, and the temperature of the heating wire is controlled based on the real-time temperature, the heating wire, sensor and the like must be configured, and the electrical connection of the heating wire and the sensor is realized, and then the circuit board needs to be built-in in the connector. The efficient assembly and stability of the circuit board after assembly are particularly important for the overall design of the connector, so the utility model develops a patient end connector and ventilation pipeline to solve the problems existing in the prior art. UTILITY MODEL CONTENT

[0004] The utility model aims at: providing a patient end connector and ventilation pipeline to solve the problem of poor assembly and stability of the circuit board in the heating breathing pipeline with heating wire in the prior art.

[0005] The technical scheme of the utility model is: a patient end connector, comprising:

[0006] A connector body is formed with an airflow channel inside, and has a stepped surface and a limiting portion in a ring-shaped distribution on the outer wall. The thickness of the limiting portion protruding from the outer wall of the connector body gradually increases from the end away from the stepped surface to the end close to the stepped surface. A receiving space is formed between the stepped surface and the limiting portion.

[0007] A circuit board module is in a ring-shaped structure and is assembled into the receiving space along the direction of increasing thickness of the limiting portion.

[0008] A sensor component is installed on the connector body and extends into the airflow channel. The sensor component is electrically connected with the circuit board module.

[0009] Preferably, the inner wall of the circuit board module and the outer wall of the connector body are always in close contact and have a first rotation limiting structure. The first rotation limiting structure includes a protruding portion and a recessed portion formed between the inner wall of the circuit board module and the outer wall of the connector body.

[0010] Preferably, the sensor member is mounted in a sensor protection sleeve which is integrally formed with or is in a snap-fit with the joint body and extends into the airflow passage.

[0011] Preferably, the joint body is configured as an integral structure and has an outer profile with at least two different outer diameters, the step surface is formed at the transition between the adjacent different outer diameter profiles, and the limiting portion is formed at the outer profile with the smaller outer diameter.

[0012] Preferably, the joint body is configured as a split structure and includes a first joint and a second joint, the step surface and the limiting portion are provided on the first joint, and the first joint and the second joint form a second axial limiting structure and a second rotation limiting structure.

[0013] Preferably, the second axial limiting structure includes a first limiting block and a first limiting groove which are formed in cooperation between the outer wall of the first joint and the inner wall of the second joint.

[0014] The second rotation limiting structure includes a second limiting block and a second limiting groove which are formed in cooperation between the first joint and the second joint.

[0015] Preferably, an encapsulation sleeve is injection molded on the outside of the joint body, and the inner wall of the encapsulation sleeve is in abutment with the outer wall of the combined assembly formed by the assembly of the joint body, the circuit board module and the sensor member.

[0016] Preferably, the encapsulation sleeve and the combined assembly have a third axial limiting structure and a third rotation limiting structure.

[0017] The third axial limiting structure includes a plurality of limiting end faces which are perpendicular to the axial direction and are formed in cooperation between the encapsulation sleeve and the combined assembly.

[0018] The third rotation limiting structure includes a third limiting block and a third limiting groove which are formed in cooperation between the encapsulation sleeve and the joint body.

[0019] The application also discloses a ventilation pipeline which includes a patient end joint and a pipe body connected with the patient end joint, and a heating wire is wound on the pipe body and is electrically connected with the circuit board module.

[0020] Preferably, the pipe body has a spiral pipe which is spirally wound on the outer wall of the pipe body, the spiral pipe is in a hollow shape, and the heating wire is built in the spiral pipe.

[0021] Preferably, the pipe body is configured as a corrugated pipe which has a corrugated top surface and a corrugated bottom surface, and the spiral pipe is spirally wound along the corrugated bottom surface.

[0022] Compared with the prior art, the application has the following advantages:

[0023] (1) The application is applied to the patient end of a heated breathing pipeline, is used for connecting with a patient oral-nasal mask, a joint body is provided with a circuit board module and a sensor component, so that temperature control of a heating wire in the heated breathing pipeline is facilitated; a limiting portion with a stepped surface and a thickness gradient is arranged, so that the circuit board module is smoothly assembled, and an easy-to-assemble and difficult-to-disassemble effect is achieved.

[0024] (2) Because a gas source needs to be introduced into the airflow channel, and the flowing gas always exerts a force on the sensor component, the application protects the sensor component through a sensor protection sleeve to ensure the structural stability of the sensor component; the sensor protection sleeve can be integrally formed with the joint body, or can be arranged in a detachable assembly connection.

[0025] (3) The joint body can adopt an integral structure or a split structure design, and after the circuit board module, the sensor component and the joint body are assembled, a rubber sleeve is formed by injection molding on the outside to protect the assembled structure and prevent circuit damage; meanwhile, during the assembly process, axial limiting structures and rotary limiting structures are used between the assembly structures to effectively ensure the stability of the structure assembly.

[0026] (4) The patient end joint needs to be connected with a pipe body when in use to form an airway pipeline, the pipe body adopts a corrugated pipe and has a corrugated top surface and a corrugated bottom surface, so that the spiral pipe is convenient to wind, the spiral pipe is in a hollow shape, effectively plays a temperature maintaining role, reduces heat loss, and is convenient for accommodating the heating wire. BRIEF DESCRIPTION OF DRAWINGS

[0027] The application will be further described below in combination with the drawings and embodiments:

[0028] Figure 1 FIG. 1 is a structure diagram of a joint body and a circuit board module according to Embodiment 1 of the application;

[0029] Figure 2 FIG. 2 is a structure diagram of a rubber sleeve according to Embodiment 1 of the application;

[0030] Figure 3 FIG. 3 is an exploded view of a patient end joint according to Embodiment 1 of the application;

[0031] Figure 4 FIG. 4 is a front view of a joint body according to Embodiment 1 of the application;

[0032] Figure 5 FIG. 5 is a sectional view of a patient end joint according to Embodiment 1 of the application along a length direction perpendicular to a sensor protection sleeve;

[0033] Figure 6The sectional view of the patient end connector along the length direction parallel to the sensor protective sleeve is shown in Embodiment 1 of the utility model;

[0034] Figure 7 The exploded view of the patient end connector is shown in Embodiment 2 of the utility model;

[0035] Figure 8 The structure schematic view of the connector body and the circuit board module is shown in Embodiment 2 of the utility model;

[0036] Figure 9 The structure schematic view of the rubber sleeve is shown in Embodiment 2 of the utility model;

[0037] Figure 10 The structure schematic view of the first connector is shown in Embodiment 2 of the utility model;

[0038] Figure 11 The front view of the first connector is shown in Embodiment 2 of the utility model;

[0039] Figure 12 The sectional view of the patient end connector along the length direction parallel to the sensor protective sleeve is shown in Embodiment 2 of the utility model;

[0040] Figure 13 The sectional view of the patient end connector along the length direction perpendicular to the sensor protective sleeve is shown in Embodiment 2 of the utility model;

[0041] Figure 14 The structure schematic view of the ventilation pipeline is shown in the utility model;

[0042] Figure 15 The local enlarged schematic view of the pipe body is shown in the utility model.

[0043] 1, connector body,

[0044] 11, stepped surface, 12, limiting portion, 13, containing space, 14, second axial limiting structure, 141, first limiting block, 142, first limiting groove, 15, second rotation limiting structure, 151, second limiting groove, 152, second limiting block;

[0045] 101, first connector, 102, second connector;

[0046] 2, circuit board module;

[0047] 21, first rotation limiting structure, 211, protruding portion, 212, recessed portion;

[0048] 3, sensor protective sleeve;

[0049] 4, rubber sleeve;

[0050] 41. Third rotational limiting structure; 411. Third limiting block; 412. Third limiting groove; 42. Third axial limiting structure; 421. Limiting end face.

[0051] 5. Pipe body;

[0052] 51. Corrugated bottom surface; 52. Corrugated top surface; 53. Spiral tube; 54. Heating wire. Detailed Implementation

[0053] The present invention will be further described in detail below with reference to specific embodiments:

[0054] Example 1

[0055] like Figures 1-3 As shown, a patient-end connector includes a connector body 1, a circuit board module 2, and a sensor component. Since the sensor component is installed inside a sensor protective sleeve 3, it is not shown in the figure. After the connector body 1, circuit board module 2, and sensor component are assembled, an outer rubber sleeve 4 is also injection molded.

[0056] Specifically, in combination Figure 3 , Figure 4 As shown, the connector body 1 is a one-piece tubular structure with an internal airflow channel. Its outer wall has annularly distributed stepped surfaces 11 and limiting portions 12. The thickness of the limiting portions 12 protruding from the outer wall of the connector body 1 gradually increases from the end furthest from the stepped surface 11 to the end closest to it. Figure 4 As shown, an accommodating space 13 is formed between the stepped surface 11 and the limiting part 12.

[0057] Since a stepped surface 11 is formed on the outer wall of the connector body 1, the connector body 1 has at least two outer contours with different outer diameters. The stepped surface 11 is formed at the transition between adjacent outer contours with different outer diameters, and the limiting part 12 is formed at the outer contour with the smaller outer diameter.

[0058] In this embodiment, the circuit board module 2 adopts a PCBA board. The circuit board module 2 has a ring-shaped structure and is assembled into the accommodating space 13 along the increasing thickness direction of the limiting part 12. Then, the inner wall side of the PCBA board is snapped between the step surface 11 and the limiting part 12. This assembly method facilitates the smooth assembly of the circuit board module 2 and achieves the effect of easy assembly but not easy disassembly. In actual application scenarios, various electrical components are also distributed on the end face of the PCBA board.

[0059] After the circuit board module 2 is installed, the stepped surface 11 and the limiting part 12 are used to achieve axial limiting of the circuit board module 2; the inner wall of the circuit board module 2 is always in contact with the outer wall of the connector body 1, and has a first rotation limiting structure 21; specifically as follows Figure 3As shown, the first rotation limiting structure 21 includes a protruding portion 211 and a recessed portion 212 formed between the inner wall of the circuit board module 2 and the outer wall of the joint body 1. In this embodiment, the first rotation limiting structure 21 includes the protruding portion 211 formed at the inner wall of the circuit board module 2, and the outer wall of the corresponding joint body 1 has the recessed portion 212 for accommodating the protruding portion 211.

[0060] The sensor member is mounted on the joint body 1 and extends into the airflow passage, and the sensor member is electrically connected to the circuit board module 2 by welding. Since the airflow passage needs to be connected to a gas source, and the flowing gas always exerts a force on the sensor member, the sensor member is protected by the sensor protection sleeve 3 to ensure the structural stability of the sensor member; for example, Figure 1 As shown, the sensor protection sleeve 3 is mounted on the joint body 1, and the sensor member is built into the sensor protection sleeve 3, and the sensor member is not shown in the figure.

[0061] In this embodiment, the sensor protection sleeve 3 is integrally injection molded with the joint body 1, and of course in other embodiments, the sensor protection sleeve 3 can also be designed separately from the joint body 1 and be inserted and fitted, or be fixedly connected in other ways.

[0062] As shown in Figure 5 , Figure 6 As shown, the joint body 1 is injection molded with a rubber sleeve 4 on the outside, and the inner wall of the rubber sleeve 4 is arranged in close contact with the outer wall of the combined assembly of the joint body 1, the circuit board module 2, and the sensor member.

[0063] The rubber sleeve 4 and the combined assembly have a third axial limiting structure 42 and a third rotation limiting structure 41.

[0064] The third axial limiting structure 42 includes a plurality of limiting end faces 421 perpendicular to the axial direction formed in cooperation between the rubber sleeve 4 and the combined assembly; it should be noted that the rubber sleeve 4 is injection molded and can protect the electrical elements on the end face of the PCBA board, and at the same time the end face of the PCBA board itself can also limit the rubber sleeve 4, so the end face of the PCBA board can also be defined as the limiting end face 421.

[0065] The third rotation limiting structure 41 includes a third limiting block 411 and a third limiting groove 412 formed between the rubber sleeve 4 and the joint body 1, which can be specifically referred to Figure 1 , Figure 2 As shown, the combined assembly of the joint body 1, the circuit board module 2, and the sensor member is not smooth in outline, and each protrusion and recess can be accommodated and filled after the rubber sleeve 4 is injection molded, and various minor non-smooth structures can also play a limiting role to some extent.

[0066] Embodiment 2

[0067] like Figures 7-9 As shown, a patient-end connector includes a connector body 1, a circuit board module 2, and a sensor component. After the connector body 1, circuit board module 2, and sensor component are assembled, an outer rubber sleeve 4 is also injection molded.

[0068] like Figure 7 As shown, the connector body 1 has a split structure, including a first connector 101 and a second connector 102; as Figure 10 As shown, the stepped surface 11 and the limiting part 12 are disposed on the first connector 101. At this time, the first connector 101 has at least two outer contours with different outer diameters. The stepped surface 11 is formed at the transition between adjacent outer contours with different outer diameters, and the limiting part 12 is formed at the outer contour with the smaller outer diameter. Figure 11 As shown, an accommodating space 13 is formed between the stepped surface 11 and the limiting part 12.

[0069] Since the first connector 101 and the second connector 102 are independent structures, in order to ensure the stability of their connection, a second axial limiting structure 14 and a second rotation limiting structure 15 are formed between the first connector 101 and the second connector 102.

[0070] like Figure 7 As shown, the second axial limiting structure 14 includes a first limiting block 141 and a first limiting groove 142 formed between the outer wall of the first connector 101 and the inner wall of the second connector 102, which cooperate with each other. In this embodiment, the first limiting block 141 is formed on the outer wall of the first connector 101 and is distributed in a ring along the circumferential direction; the first limiting groove 142 is formed on the inner wall of the second connector 102, and is distributed in the same way as the first limiting block 141, and is accommodated by the first limiting block 141.

[0071] The second rotation limiting structure 15 includes a second limiting block 152 and a second limiting groove 151 formed between the first connector 101 and the second connector 102 to cooperate with each other. In this embodiment, the second limiting block 152 is formed on the second connector 102, and its protruding extension direction is parallel to the axial direction of the connector body 1; the second limiting groove 151 is formed on the first connector 101 and is used to accommodate the second limiting block 152. During the assembly process of the first connector 101 and the second connector 102, the second limiting block 152 is gradually inserted into the second limiting groove 151.

[0072] The circuit board module 2 is a PCBA board with a ring-shaped structure. It is assembled into the accommodating space 13 along the increasing thickness direction of the limiting part 12. That is, the upper end face of the PCBA board abuts against the stepped surface 11, and the lower end face of the PCBA board abuts against the end face of the limiting part 12 with greater thickness. In this embodiment, the inner wall of the circuit board module 2 is always in contact with the outer wall of the first connector 101 and has a first rotation limiting structure 21. The first rotation limiting structure 21 includes a recess 212 formed on the inner wall of the circuit board module 2, and a corresponding protrusion 211 on the outer wall of the first connector 101.

[0073] In this embodiment, after the circuit board module 2 is assembled into the accommodating space 13 along the increasing thickness direction of the limiting portion 12, the second connector 102 is then installed and combined. Figure 12 , Figure 13 As shown, in the assembled state, the upper end face of the second connector 102 and the end face of the side with greater thickness of the limiting part 12 are in the same plane, so the second connector 102 can also play the role of pressing against the circuit board module 2, further ensuring the installation stability of the circuit board module 2.

[0074] In this embodiment, the outer side of the assembly formed by the connector body 1, the circuit board module 2 and the sensor component is also provided with an injection-molded rubber sleeve 4.

[0075] This application also discloses a ventilation conduit, such as Figure 14 As shown, it includes a patient end connector and a tube 5 connected to the patient end connector; a heating wire 54 is wound around the tube 5 and the heating wire 54 is electrically connected to the circuit board module 2.

[0076] Specifically, such as Figure 15 As shown, the tube body 5 is constructed as a corrugated tube, which has a corrugated top surface 52 and a corrugated bottom surface 51. A spiral tube 53, spirally wound along the corrugated bottom surface 51, is located on the outer wall of the tube body 5. The spiral tube 53 is hollow, and the heating wire 54 is housed within it. The hollow spiral tube 53 effectively retains heat, reduces heat loss, and also facilitates the placement of the heating wire 54.

[0077] In conjunction with Embodiment 1, during the specific assembly process, the PCBA board is first assembled onto the connector body 1 along the increasing thickness direction of the limiting part 12, and the heating wire 54 inside the tube 5 passes through the connector body 1 and is welded to the PCBA board; then, the sensor component is installed inside the sensor protective sleeve 3, and the wiring terminals of the sensor component are welded to the PCBA board; finally, the encapsulated sleeve 4 is injection molded, and the connector body 1, the circuit board module 2, and the sensor protective sleeve 3 are fixed together by the encapsulated sleeve 4.

[0078] In summary, the ventilation pipeline in the application is used to connect with the mechanical ventilation equipment, to realize the delivery of gas to the patient, based on the setting of the heating wire 54, to ensure that the heated gas is always supplied, and combined with the real-time monitoring of the sensor, to realize the relative stability of the gas temperature.

[0079] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application, therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A patient end connector, characterized by, The utility model relates to a kind of sensor module, including: Joint body (1), gas flow passage is formed in the joint body (1), outer wall has annularly distributed step surface (11) and limiting portion (12), the limiting portion (12) is protruded from the thickness of joint body (1) outer wall, and the thickness gradually thickens from the end away from step surface (11) to the end close to step surface (11);The step surface (11) and the limiting portion (12) between form accommodating space (13); Circuit board module (2), the circuit board module (2) is annular structure, and is assembled to the accommodating space (13) along the thickness increasing direction of limiting portion (12); Sensor component, the sensor component is installed on the joint body (1), and extends to the gas flow passage, and the sensor component is electrically connected with the circuit board module (2).

2. A patient end connector according to claim 1, wherein: The inner wall of the circuit board module (2) and the outer wall of the joint body (1) are always attached, and have a first rotation limiting structure (21);The first rotation limiting structure (21) includes a protruding portion (211) and a recessed portion (212) formed between the inner wall of the circuit board module (2) and the outer wall of the joint body (1).

3. A patient end connector according to claim 1, wherein: The sensor component is installed in a sensor protective sleeve (3), which is integrally formed with the joint body (1) or is inserted and fitted, and extends into the gas flow passage.

4. The patient end connector of claim 1, wherein: The joint body (1) is configured as an integral structure and has an outer contour with at least two different outer diameters, the step surface (11) is formed at the transition of adjacent different outer diameter contours, and the limiting portion (12) is formed at the small outer diameter contour.

5. The patient end connector of claim 1, wherein: The joint body (1) is configured as a split structure, including a first joint (101) and a second joint (102);The step surface (11) and the limiting portion (12) are provided on the first joint (101);The first joint (101) and the second joint (102) form a second axial limiting structure (14) and a second rotation limiting structure (15).

6. A patient end connector according to claim 5, wherein: The second axial limiting structure (14) includes a first limiting block (141) and a first limiting groove (142) formed between the outer wall of the first joint (101) and the inner wall of the second joint (102); The second rotation limiting structure (15) includes a second limiting block (152) and a second limiting groove (151) formed between the first joint (101) and the second joint (102).

7. The patient end connector of claim 1, wherein: The joint body (1) is injection molded with a rubber sleeve (4) on the outside, and the inner wall of the rubber sleeve (4) is attached to the outer wall of the combined assembly formed by the joint body (1), the circuit board module (2), and the sensor component.

8. A patient end connector according to claim 7, wherein: The rubber sleeve (4) and the combined assembly have a third axial limiting structure (42) and a third rotation limiting structure (41); The third axial limiting structure (42) includes a plurality of limiting end faces (421) perpendicular to the axis formed between the rubber sleeve (4) and the combined assembly; The third rotation limiting structure (41) includes a third limiting block (411) and a third limiting groove (412) formed between the rubber sleeve (4) and the joint body (1).

9. A vent line characterized by: The patient end connector according to any one of claims 1-8, further comprising a tube body (5) connected to the patient end connector; a heating wire (54) is wound on the tube body (5), and the heating wire (54) is electrically connected to the circuit board module (2).

10. A vent line according to claim 9, wherein: The tube body (5) has a spiral tube (53) wound in a spiral shape on the outer wall; the spiral tube (53) is hollow, and the heating wire (54) is arranged in the spiral tube (53).

11. A vent line according to claim 10, wherein: The tube body (5) is configured as a bellows, the bellows has a bellows top surface (52) and a bellows bottom surface (51), and the spiral tube (53) is wound in a spiral shape along the bellows bottom surface (51).

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