Insertion assembly and related automatic injection system

Abstract

The invention discloses an insertion assembly and an associated automatic injection system, the insertion assembly comprises a driving member, an actuating member, an abutting sleeve member, a first ratchet member, a driven member and an insertion member, the actuating member enables the driving member to have rotating potential energy, the abutting sleeve member can be clamped on the driving member at a first position, and the first ratchet member enables the abutting sleeve member to be clamped on the driving member at a second position. When the first ratchet part rotates, the first ratchet part can drive the abutting sleeve part to enable the abutting sleeve part to be disengaged from the driving part located at the first position, so that the actuating part is allowed to drive the driving part to rotate from the first position to the second position. Therefore, the driving piece can drive the driven piece and the insertion piece to move together in the insertion direction so as to complete the insertion operation of the insertion piece.

Description

[0001] This application claims priority to U.S. patent application No. 18 / 527,373, filed with the U.S. Patent Office on December 4, 2023, and entitled “Insertion Assembly and Related Automatic Injection System,” the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to an insertion assembly and a related automatic injection system, and more particularly to an insertion assembly and a related automatic injection system with simple structure and convenient operation. Background Art

[0003] An automatic injection system (such as a wearable injector, on-body injector) is a medical device designed to deliver drugs. However, existing automatic injection systems fail to meet requirements such as simple structure and easy operation, and therefore the automatic injection system is in urgent need of improvement. Summary of the invention

[0004] One of the purposes of the present invention is to provide an insertion assembly and a related automatic injection system with a simple structure and convenient operation to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the present invention provides an insertion assembly, which includes a driving member, an actuating member, an abutting kit, a first ratchet member, a driven member and an inserting member, wherein the actuating member abuts against the driving member and is used to enable the driving member to have potential energy to rotate around a rotating shaft, the abutting kit is used to engage with the driving member located at a first position, thereby stopping the driving member at the first position to prevent the driving member from rotating around the rotating shaft from the first position to the second position, the first ratchet member can rotate coaxially with respect to the driving member, and when the first When the ratchet member rotates along the first rotation direction, the first ratchet member drives the abutment kit to disengage the abutment kit from the driving member located at the first position, so as to allow the actuator to drive the driving member to rotate from the first position to the second position. The follower member is movably engaged with the driving member. When the actuator drives the driving member to rotate from the first position to the second position, the driving member drives the follower member to move along the insertion direction. The inserting member is arranged on the follower member and can move along the insertion direction with the follower member.

[0006] According to one embodiment of the present invention, when the driving member rotates around the rotating shaft from the first position to the second position, the abutment kit is also used to engage with the driving member located at the second position, thereby stopping the driving member at the second position to prevent the driving member from rotating around the rotating shaft and leaving the second position.

[0007] According to one embodiment of the present invention, the insertion assembly further includes a second ratchet member, which can rotate coaxially relative to the driving member. When the first ratchet member rotates along the first rotation direction, the second ratchet member is elastically deformed under the action of the first ratchet member and does not rotate along the first rotation direction. When the first ratchet member rotates along a second rotation direction opposite to the first rotation direction, the second ratchet member is driven by the first ratchet member to rotate along the second rotation direction.

[0008] According to one embodiment of the present invention, when the second ratchet member is driven by the first ratchet member to rotate along the second rotation direction, the second ratchet member drives the abutment kit to disengage the abutment kit from the driving member located at the second position, and when the second ratchet member drives the abutment kit to disengage the abutment kit from the driving member located at the second position, the actuator drives the driving member to rotate around the rotating shaft to leave the second position.

[0009] According to one embodiment of the present invention, when the actuator drives the driving member to rotate around the rotating shaft to leave the second position, the driving member drives the follower to move in the retraction direction, and when the driving member drives the follower to move in the retraction direction, the follower drives the inserter to move along with the follower in the retraction direction.

[0010] According to one embodiment of the present invention, the driving member includes a driving insertion bevel and a driving retraction bevel, and the driving insertion bevel and the driving retraction bevel are connected to each other. When the actuator drives the driving member to rotate around the rotating shaft from the first position to the second position, the driving insertion bevel is used to abut against the follower to drive the follower to move along the insertion direction, and when the actuator drives the driving member to rotate around the rotating shaft from the second position to the third position, the driving retraction bevel is used to abut against the follower to drive the follower to move along the retraction direction.

[0011] According to one embodiment of the present invention, the first ratchet member, the second ratchet member and the driving member are arranged along an extension direction of the rotating shaft, the second ratchet member is located between the first ratchet member and the driving member, and the abutment kit is located at the outer periphery corresponding to the first ratchet member, the outer periphery of the second ratchet member and the outer periphery of the driving member.

[0012] According to one embodiment of the present invention, the abutment kit includes a first abutment portion and a second abutment portion, one end of the first abutment portion protrudes beyond one end of the second abutment portion in a direction from the second ratchet member toward the first ratchet member, the first abutment portion is used to cooperate with the driving member and the first ratchet member, and the second abutment portion is used to cooperate with the driving member and the second ratchet member.

[0013] According to one embodiment of the present invention, the abutment kit further includes a connecting portion, which is integrally connected between the first abutment portion and the second abutment portion, and the first abutment portion, the second abutment portion and the connecting portion are made of elastic material.

[0014] According to one embodiment of the present invention, the first abutting portion, the second abutting portion and the connecting portion are separated from each other and are made of elastic material.

[0015] According to one embodiment of the present invention, the abutting assembly further includes a first restoring portion and a second restoring portion, wherein the first restoring portion and the second restoring portion are made of elastic material and abut against the first abutting portion and the second abutting portion respectively.

[0016] According to one embodiment of the present invention, the actuating member is used to enable the driving member to have potential energy to rotate around the rotation axis along a second rotation direction opposite to the first rotation direction.

[0017] Furthermore, the present invention also provides an insertion assembly, which includes a driving member, an actuating member, an abutment kit, a first ratchet member, a second ratchet member, a follower and an inserting member, the actuating member abuts against the driving member and is used to make the driving member have potential energy to rotate around a rotating shaft, the abutment kit is used to engage with the driving member, the first ratchet member can rotate coaxially relative to the driving member, when the first ratchet member rotates along a first rotation direction, the first ratchet member drives the abutment kit to disengage the abutment kit from the driving member located at the first position, so as to allow the actuating member to drive the driving member to rotate from the first position to the second position around the rotating shaft along a second rotation direction opposite to the first rotation direction, and when the actuating member drives the driving member to rotate from the first position to the second position along the second rotation direction, the abutment kit engages with the driving member located at the second position, thereby stopping the driving member at the second position to prevent the driving member from rotating away from the second position along the second rotation direction, and the second ratchet member can rotate relative to the driving member The first ratchet member rotates coaxially, and when the first ratchet member rotates along the second rotation direction, the second ratchet member is driven by the first ratchet member to rotate along the second rotation direction. When the second ratchet member is driven by the first ratchet member to rotate along the second rotation direction, the second ratchet member drives the abutment kit to disengage the abutment kit from the driving member located at the second position. When the second ratchet member drives the abutment kit to disengage the abutment kit from the driving member located at the second position, the actuating member drives the driving member. The member rotates around the rotating shaft along the second rotation direction from the second position to the third position, and the follower is movably engaged with the driving member. When the actuating member drives the driving member to rotate from the first position to the second position, the driving member drives the follower to move along the insertion direction. When the actuating member drives the driving member to rotate from the second position to the third position, the driving member drives the follower to move along the retraction direction. The inserting member is arranged on the follower and can move along the insertion direction or the retraction direction with the follower.

[0018] In addition, the present invention also provides an automatic injection system, which includes a housing and an insertion assembly, the insertion assembly is installed on the housing, the insertion assembly includes a driving member, an actuating member, an abutting kit, a first ratchet member, a follower and an inserting member, the actuating member abuts against the driving member and is used to make the driving member have potential energy to rotate around a rotating shaft, the abutting kit is used to engage with the driving member located at a first position, thereby stopping the driving member at the first position to prevent the driving member from rotating around the rotating shaft from the first position to the second position, and the first ratchet member can be relative to The driving member rotates coaxially, and when the first ratchet member rotates along the first rotation direction, the first ratchet member drives the abutment kit to disengage the abutment kit from the driving member located at the first position, so as to allow the actuator to drive the driving member to rotate from the first position to the second position. The follower member is movably engaged with the driving member. When the actuator drives the driving member to rotate from the first position to the second position, the driving member drives the follower member to move along the insertion direction. The inserting member is arranged on the follower member and can move along the insertion direction with the follower member.

[0019] In summary, the present invention first utilizes the rotation of the first ratchet member along the first rotation direction to implement the insertion operation of the insert, and then utilizes the rotation of the first ratchet member along the second rotation direction to implement the retraction operation of the insert. Therefore, the present invention has the advantages of simple structure and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a partial structural diagram of the automatic injection system according to the first embodiment of the present invention.

[0021] Figure 2 It is a partial structural schematic diagram of the insertion assembly according to the first embodiment of the present invention.

[0022] Figure 3 It is a partial structural cross-sectional schematic diagram of the insertion assembly according to the first embodiment of the present invention.

[0023] Figure 4 It is a schematic exploded view of some components of the insertion assembly of the first embodiment of the present invention.

[0024] Figure 5 FIG. 1 is a schematic diagram of an insertion assembly coupled to a driving source according to a first embodiment of the present invention.

[0025] Figure 6 FIG. 4 is a schematic diagram of a first ratchet component and a second ratchet component according to a first embodiment of the present invention.

[0026] Figure 7 and Figure 8 Schematic diagrams of the insertion assembly in a first use state at different viewing angles according to the first embodiment of the present invention.

[0027] Fig. 9 and Fig.10 Schematic diagrams of the insertion assembly in the second use state according to the first embodiment of the present invention at different viewing angles.

[0028] Fig.11 and Fig.12 Schematic diagrams of the insertion assembly in the third use state according to the first embodiment of the present invention at different viewing angles.

[0029] Fig.13 FIG. 1 is a schematic diagram of a driving member and a driven member according to a first embodiment of the present invention.

[0030] Fig.14 Schematic diagram of the insertion assembly connected to a driving source according to the second embodiment of the present invention.

[0031] Fig.15 This is a schematic diagram of an insertion assembly according to a third embodiment of the present invention.

[0032] Fig.16 It is a schematic diagram of an insertion assembly according to a fourth embodiment of the present invention.

[0033] In the figure:

[0034] 1: Automatic injection system

[0035] 11,11',11",11"': Insert assembly

[0036] 111,111”,111”': driving parts

[0037] 1111,1111”,1111”': stop protrusion

[0038] 1112: Drive insertion ramp

[0039] 1113: Drive retract ramp

[0040] 112: Actuating member

[0041] 113,113”,113”':Abutment kit

[0042] 1131, 1131", 1131"': first abutting portion

[0043] 1132, 1132", 1132"': second abutment portion

[0044] 1133:Connection

[0045] 1133"': First reset part

[0046] 1134"': Second reset part

[0047] 114, 114', 114", 114': first ratchet member

[0048] 1141: Cooperation Department

[0049] 1141A: Tilt structure

[0050] 1141B: Erect structure

[0051] 1142,1142",1142"': First push against the protrusion

[0052] 115, 115", 115"': second ratchet member

[0053] 1151: Elastic Arm

[0054] 1152,1152",1152"': second push-butt protrusion

[0055] 116: Follower

[0056] 117: Insert

[0057] 118: Coupling

[0058] 118': Gear transmission mechanism

[0059] 1181': First bevel gear

[0060] 1182': Second bevel gear

[0061] 12: Shell

[0062] 13,13': driving source

[0063] P1: First position

[0064] P2: Second position

[0065] P3: Third position

[0066] R0: Rotating axis

[0067] R1: First rotation direction

[0068] R2: Second rotation direction

[0069] S: Space DETAILED DESCRIPTION

[0070] The directional terms mentioned below, such as: up, down, left, right, front or back, etc., are only reference directions of the drawings. Therefore, the directional terms used are used for explanation and not for limiting the present invention. In addition, unless otherwise specified, the term "coupled" or "connected" mentioned below includes any direct and indirect electrical or structural connection means. Therefore, if the text describes a first device coupled / connected to a second device, it means that the first device can be directly structurally connected to the second device, or indirectly structurally connected to the second device through other devices or connection means.

[0071] See also Figures 1 to 4 , Figure 1 This is a partial structural diagram of the automatic injection system 1 according to the first embodiment of the present invention. Figure 2 This is a partial structural diagram of the insertion assembly 11 according to the first embodiment of the present invention. Figure 3 FIG. 1 is a schematic cross-sectional view of a portion of the structure of the insertion assembly 11 according to the first embodiment of the present invention. Figure 4 FIG. 1 is an exploded schematic diagram of some components of the insertion assembly 11 according to the first embodiment of the present invention. Figures 1 to 4 As shown, the automatic injection system 1 includes an insertion assembly 11, a housing 12 and a driving source 13. The insertion assembly 11 is installed in the housing 12. The driving source 13 is installed in the housing 12 and is used to drive the insertion assembly 11 to perform corresponding actions. The insertion assembly 11 includes a driving member 111, an actuating member 112, an abutting kit 113, a first ratchet member 114, a second ratchet member 115, a follower 116 and an inserting member 117. The actuating member 112 is accommodated in the space S of the driving member 111 and abuts against the driving member 111, so that the driving member 111 has a tendency to rotate around the rotation axis R0. The abutment kit 113 is used to engage with the driving member 111 to stop the driving member 111 from rotating. The first ratchet member 114 can rotate coaxially with respect to the driving member 111. The driving source 13 is coupled to the first ratchet member 114 to drive the first ratchet member 114 to rotate. The second ratchet member 115 can rotate coaxially with respect to the driving member 111 and is used to be driven to rotate by the first ratchet member 114. The abutment kit 113 has the potential energy to engage with the driving member 111 to stop the driving member 111 from rotating, and can be driven by the first ratchet member 114. 14 or the second ratchet member 115 is driven to disengage from the driving member 111 to allow the driving member 111 to be driven to rotate by the actuating member 112, the follower 116 is movably engaged with the driving member 111, and the inserting member 117 is arranged on the follower 116. When the driving member 111 is driven to rotate by the actuating member 112, the follower 116 is driven to move by the driving member 111. When the follower 116 is driven to move by the driving member 111, the inserting member 117 moves with the follower 116.

[0072] like Figures 1 to 3 As shown, in this embodiment, the driving source 13 and the driving member 111 can be an electric motor and a driving barrel respectively, and the actuating member 112 and the inserting member 117 can be a torsion spring and a hollow needle respectively, but the present invention is not limited to this embodiment.

[0073] See also Figure 5 , Figure 5 FIG. 1 is a schematic diagram of the first embodiment of the present invention, in which the insertion assembly 11 is coupled to the driving source 13. Figure 5As shown, the driving source 13 is coaxially connected to the first ratchet member 114 through a coupling 118 (such as a rigid coupling or a flexible coupling), but the present invention is not limited to this embodiment. For example, in another embodiment, the driving source can be connected to the first ratchet member through a belt transmission mechanism or a gear transmission mechanism.

[0074] See also Figure 2 and Figures 4 to 12 , Figure 6 Schematic diagram of the first ratchet member 114 and the second ratchet member 115 of the first embodiment of the present invention, Figure 7 and Figure 8 Schematic diagrams of the insertion assembly 11 in the first use state according to the first embodiment of the present invention at different viewing angles, Fig. 9 and Fig.10 Schematic diagrams of the insertion assembly 11 in the second use state according to the first embodiment of the present invention at different viewing angles, Fig.11 and Fig.12 Schematic diagram of the insertion assembly 11 in the third use state according to the first embodiment of the present invention at different viewing angles. Figure 2 and Figures 4 to 12 As shown, when the first ratchet member 114 rotates in the first rotation direction R1, the second ratchet member 115 is elastically deformed under the action of the first ratchet member 114 and rotates without being driven by the first ratchet member 114. When the second ratchet member 115 rotates in the second rotation direction R2 opposite to the first rotation direction R1, the second ratchet member 115 is driven by the first ratchet member 114 and rotates along the second rotation direction R2 with the first ratchet member 114.

[0075] like Figure 2 , Figure 5 and Figure 6 As shown, in this embodiment, the first ratchet member 114 is formed with a matching portion 1141, and the second ratchet member 115 may include an elastic arm 1151, which can be used to match with the matching portion 1141. When the first ratchet member 114 rotates along the first rotation direction R1, the elastic arm 1151 is elastically deformed under the action of the inclined structure 1141A of the matching portion 1141, so that the second ratchet member 115 can rotate without being driven by the first ratchet member 114. When the first ratchet member 114 rotates along the second rotation direction R2, the elastic arm 1151 can be abutted by the upright structure 1141B of the matching portion 1141, so that the second ratchet member 115 is driven by the first ratchet member 114 and rotates along the second rotation direction R2 with the first ratchet member 114.

[0076] Furthermore, when the insertion assembly 11 is located Figure 7 and Figure 8In the first use state shown in FIG. 1 , the actuating member 112 can make the driving member 111 have the potential energy to rotate around the rotation axis R0 in the second rotation direction R2, and the abutment member 113 is engaged with the driving member 111 at the first position P1, thereby stopping the driving member 111 at the first position P1 to prevent the driving member 111 from rotating around the rotation axis R0 in the second rotation direction R2 and leaving the first position P1. When the first ratchet member 114 rotates along the first rotation direction R1, the first ratchet member 114 drives the abutment member 113 to abut against the driving member 111 at the first position P1. Figure 7 and Figure 8 The driving member 111 at the first position P1 shown in FIG. 1 is disengaged, so that the driving member 111 is driven by the actuating member 112 to rotate around the rotation axis R0 along the second rotation direction R2 from Figure 7 and Figure 8 The first position P1 shown is rotated to Fig. 9 and Fig.10 The second position P2 shown. Fig. 9 and Fig.10 As shown, when the driving member 111 is driven by the actuator 112 and rotates from the first position P1 to the second position P2 along the second rotation direction R2 around the rotation axis R0, the abutment kit 113 engages with the driving member 111 located at the second position P2, thereby stopping the driving member 111 at the second position P2 to prevent the driving member 111 from rotating away from the second position P2 along the second rotation direction R2.

[0077] Next, when the first ratchet member 114 rotates in the second rotation direction R2, the second ratchet member 115 can be driven by the first ratchet member 114 to rotate along the second rotation direction R2 together with the first ratchet member 114, so that the abutting member 113 can be driven by the second ratchet member 115 to disengage from the driving member 111 located at the second position P2. When the abutting member 113 disengages from the driving member 111 located at the second position P2, the driving member 111 can be driven by the actuating member 112 to rotate around the rotation axis R0 in the second rotation direction R2. Fig. 9 and Fig.10 The second position P2 shown is rotated to Fig.11 and Fig.12 The third position P3 is shown.

[0078] like Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, the first ratchet member 114, the second ratchet member 115 and the driving member 111 are arranged along the extension direction of the rotation axis R0, and the second ratchet member 115 is located between the first ratchet member 114 and the driving member 111, and the abutment kit 113 is located at the outer periphery of the corresponding first ratchet member 114, the outer periphery of the second ratchet member 115 and the outer periphery of the driving member 111.

[0079] Furthermore, if Figures 4 to 12 As shown, the abutment kit 113 includes a first abutment portion 1131, a second abutment portion 1132 and a connecting portion 1133. The connecting portion 1133 is integrally connected between the first abutment portion 1131 and the second abutment portion 1132 and can be sleeved on a fixed structure of the shell 12 (not shown in the figure). The first abutment portion 1131, the second abutment portion 1132 and the connecting portion 1133 can be made of elastic material. The first abutment portion 1131 has potential energy for cooperating with the stop protrusion 1111 of the driving member 111 and the first pushing protrusion 1142 of the first ratchet member 114. The second abutment portion 1132 has potential energy for cooperating with the stop protrusion 1111 of the driving member 111 and the second pushing protrusion 1152 of the second ratchet member 115. Furthermore, in order to allow the first pushing protrusion 1142 to cooperate only with the first abutting portion 1131, one end of the first abutting portion 1131 protrudes beyond one end of the second abutting portion 1132 in the direction from the second ratchet component 115 toward the first ratchet component 114, that is, the upper end of the second abutting portion 1132 is lower than the upper end of the first abutting portion 1131 along the height direction parallel to the rotation axis R0.

[0080] like Figures 7 to 12 As shown, when the driving member 111 is driven by the actuator 112 to rotate from the first position P1 to the second position P2, the driving member 111 drives the follower 116 to move along the insertion direction D1 to drive the inserter 117 to move along the insertion direction D1 with the follower 116; when the driving member 111 is driven by the actuator 112 to rotate from the second position P2 to the third position P3, the driving member 111 drives the follower 116 to move along the retraction direction D2 opposite to the insertion direction D1 to drive the inserter 117 to move along the retraction direction D2 with the follower 116.

[0081] See also Figure 8 , Fig.10 , Fig.12 and Fig.13 , Fig.13 FIG. 1 is a schematic diagram of a driving member 111 and a driven member 116 according to a first embodiment of the present invention. Figure 8 , Fig.10 , Fig.12 and Fig.13As shown, in this embodiment, the driving member 111 includes a driving insertion inclined surface 1112 and a driving retraction inclined surface 1113, and the driving insertion inclined surface 1112 and the driving retraction inclined surface 1113 are connected to each other. When the driving member 111 is driven by the actuator 112 and rotates around the rotation axis R0 from the first position P1 to the second position P2, the driving insertion inclined surface 1112 is used to abut against the follower 116 to drive the follower 116 to move along the insertion direction D1, and when the driving member 111 is driven by the actuator 112 and rotates around the rotation axis R0 from the second position P2 to the third position P3, the driving retraction inclined surface 1113 is used to abut against the follower 116 to drive the follower 116 to move along the retraction direction D2.

[0082] The operating principle of the automatic injection system 1 is described in detail below.

[0083] When the user wants to use the automatic injection system 1, the driving source 13 can be activated to drive the first ratchet member 114 to rotate along the first rotation direction R1, thereby driving the first abutting protrusion 1142 to push the first abutting portion 1131 of the abutting assembly 113 to move outward and disengage from the stop protrusion 1111 of the driving member 111, so that the driving member 111 can be driven by the actuating member 112 to rotate around the rotation axis R0 along the second rotation direction R2. Figure 7 and Figure 8 The first position P1 shown is rotated to Fig. 9 and Fig.10 When the driving member 111 is driven by the actuating member 112 to rotate from the first position P1 to the second position P2 along the second rotation direction R2 around the rotation axis R0, the driving member 111 drives the follower 116 to move along the insertion direction D1 by driving the insertion slope 1112 to cooperate with the follower 116, so as to drive the inserting member 117 to move along the insertion direction D1 with the follower 116, thereby inserting the inserting member 117 into the patient's body. Fig. 9 and Fig.10 When the abutment sleeve 113 is in the second position P2, the abutment sleeve 113 can be engaged with the stop protrusion 1111 of the driving member 111, so that the driving member 111 can stop at the second position P2 and will not rotate away from the second position P2 along the second rotation direction R2. It is worth noting that during the above process, the first ratchet member 114 can continuously rotate along the first rotation direction R1, or stop rotating after the first abutment portion 1131 of the abutment sleeve 113 is disengaged from the stop protrusion 1111 of the driving member 111.

[0084] Next, the user can operate the driving source 13 again to drive the first ratchet member 114 to rotate along the second rotation direction R2. When the first ratchet member 114 rotates along the second rotation direction R2, the second ratchet member 115 is driven by the first ratchet member 114 to rotate along the second rotation direction R2 together with the first ratchet member 114, thereby driving the second abutting protrusion 1152 to push the second abutting portion 1132 of the abutting assembly 113 to move outward and disengage from the stop protrusion 1111 of the driving member 111, so that the driving member 111 can be driven by the actuating member 112 to rotate around the rotation axis R0 along the second rotation direction R2. Fig. 9 and Fig.10 The second position P2 shown is rotated to Fig.11 and Fig.12 When the driving member 111 is driven by the actuating member 112 to rotate from the second position P2 to the third position P3 along the second rotation direction R2 around the rotation axis R0, the driving member 111 drives the follower 116 to move along the retraction direction D2 by driving the retraction slope 1113 to cooperate with the follower 116, so as to drive the inserting member 117 to move along the retraction direction D2 with the follower 116, thereby pulling the inserting member 117 out of the patient's body. Fig.11 and Fig.12 When the third position P3 is shown, the end of the driving retracting inclined surface 1113 abuts against the driven member 116, so that the driving member 111 can stop at the third position P3 and will not rotate away from the third position P3 along the second rotation direction R2. It is worth noting that in the above process, the first ratchet member 114 can continuously rotate along the second rotation direction R2, or stop rotating after the second abutting portion 1132 of the abutting sleeve 113 is disengaged from the stop protrusion 1111 of the driving member 111.

[0085] It can be understood that in another embodiment, the second ratchet member may be omitted, and in order to enable the insert to be driven and retracted by the driving member, the abutment kit may be driven by other mechanisms different from the above-mentioned mechanism (i.e., the mechanism of rotation of the first ratchet member along the second rotation direction) to disengage from the driving member located in the second position.

[0086] See also Fig.14 , Fig.14This is a schematic diagram of an insertion assembly 11' connected to a driving source 13' according to the second embodiment of the present invention. The insertion assembly 11' of the second embodiment is similar to the insertion assembly 11 of the first embodiment. The difference from the first embodiment is that, as shown in FIG. 14, the driving source 13' and the rotating shaft of the first ratchet member 114' are vertically arranged, and the driving source 13' is connected to the first ratchet member 114' through a gear transmission mechanism 118'. The gear transmission mechanism 118' includes a first bevel gear 1181' and a second bevel gear 1182'. The first bevel gear 1181' is connected to the first ratchet member 114', and the second bevel gear 1182' is connected to the driving source 13' and is rotatably engaged with the first bevel gear 1181'. The other structures of this embodiment are similar to those of the first embodiment and also have similar various changes. For the sake of brevity, they are not repeated here.

[0087] See also Fig.15 , Fig.15 FIG. 15 is a schematic diagram of an insertion assembly 11" of a third embodiment of the present invention. The insertion assembly 11" of the third embodiment is similar to the insertion assembly 11 of the first embodiment. The difference from the first embodiment is that, as shown in FIG. 15, an abutment kit 113" includes a first abutment portion 1131" and a second abutment portion 1132". The first abutment portion 1131" and the second abutment portion 1132" can be partially inserted into the fixed structure of the housing (not shown in the figure) and separated from each other. The first abutment portion 1131" and the second abutment portion 1132" 2" can be made of elastic material, so that the first abutting portion 1131" has the potential energy to cooperate with the stop protrusion 1111" of a driving member 111" or the first pushing protrusion 1142" of the first ratchet member 114", and the second abutting portion 1132" has the potential energy to cooperate with the stop protrusion 1111" of the driving member 111" or the second pushing protrusion 1152" of the second ratchet member 115". Other structures of this embodiment are similar to those of the first embodiment and also have similar various changes. For the sake of brevity, they are not repeated here.

[0088] See also Fig.16 , Fig.16 FIG. 1 is a schematic diagram of an insertion assembly 11″′ of a fourth embodiment of the present invention. The insertion assembly 11″′ of the fourth embodiment is similar to the insertion assembly 11 of the first embodiment, but differs from the first embodiment in that Fig.16As shown, the abutment set 113"' includes a first abutment portion 1131"', a second abutment portion 1132"', a first restoring portion 1133"' and a second restoring portion 1134"'. The first abutment portion 1131"' and the second abutment portion 1132"' can be pivotally disposed on a fixed structure of the housing (not shown in the figure) and separated from each other. The first restoring portion 1133"' abuts between the first abutment portion 1131"' and the housing, so that the first abutment portion 1131"' has a stop convexity with the driving member 111"'. The second reset portion 1134"' abuts between the second abutting portion 1132"' and the shell, so that the second abutting portion 1132"' has the potential energy to cooperate with the stop protrusion 1111"' of the driving member 111"' or the second pushing protrusion 1152"' of the second ratchet member 115"'. The other structures of this embodiment are similar to those of the first embodiment and also have similar various changes. For the sake of brevity, they are not repeated here.

[0089] Compared with the prior art, the present invention utilizes the rotation of the first ratchet member along the first rotation direction to achieve the insertion operation of the insert, and then utilizes the rotation of the first ratchet member along the second rotation direction to achieve the retraction operation of the insert. Therefore, the present invention has the advantages of simple structure and easy operation.

[0090] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. An insertion assembly, characterized in that: Contains: Driving parts; An actuating member abutting against the driving member and used to enable the driving member to have potential energy to rotate around a rotation axis; an abutment kit, for engaging with the driving member at the first position, so as to stop the driving member at the first position to prevent the driving member from rotating around the rotating shaft from the first position to the second position; a first ratchet member, which can rotate coaxially with respect to the driving member, and when the first ratchet member rotates along a first rotation direction, the first ratchet member drives the abutment kit to disengage the abutment kit from the driving member at the first position, so as to allow the actuating member to drive the driving member to rotate from the first position to the second position; A follower, movably engaged with the driving member, when the actuating member drives the driving member to rotate from the first position to the second position, the driving member drives the follower to move along the insertion direction; as well as The inserting member is arranged on the driven member and can move along the inserting direction together with the driven member.

2. The insertion assembly according to claim 1, characterized in that: When the driving member rotates around the rotating shaft from the first position to the second position, the abutment kit is also used to engage with the driving member located at the second position, thereby stopping the driving member at the second position to prevent the driving member from rotating around the rotating shaft and leaving the second position.

3. The insertion assembly according to claim 2, characterized in that: It also includes a second ratchet member, which can rotate coaxially relative to the driving member. When the first ratchet member rotates along the first rotation direction, the second ratchet member is elastically deformed under the action of the first ratchet member and does not rotate along the first rotation direction. When the first ratchet member rotates along a second rotation direction opposite to the first rotation direction, the second ratchet member is driven by the first ratchet member to rotate along the second rotation direction.

4. The insertion assembly according to claim 3, characterized in that: When the second ratchet member is driven by the first ratchet member to rotate along the second rotation direction, the second ratchet member drives the abutment kit to disengage the abutment kit from the driving member located at the second position, and when the second ratchet member drives the abutment kit to disengage the abutment kit from the driving member located at the second position, the actuator drives the driving member to rotate around the rotating shaft to leave the second position.

5. The insertion assembly according to claim 4, characterized in that: When the actuating member drives the driving member to rotate about the rotating shaft to leave the second position, the driving member drives the follower to move in a retracting direction, and when the driving member drives the follower to move in the retracting direction, the follower drives the inserting member to move along with the follower in the retracting direction.

6. The insertion assembly according to claim 5, characterized in that: The driving member includes a driving insertion bevel and a driving retraction bevel, and the driving insertion bevel and the driving retraction bevel are connected to each other. When the actuator drives the driving member to rotate around the rotating shaft from the first position to the second position, the driving insertion bevel is used to abut against the follower to drive the follower to move along the insertion direction, and when the actuator drives the driving member to rotate around the rotating shaft from the second position to the third position, the driving retraction bevel is used to abut against the follower to drive the follower to move along the retraction direction.

7. The insertion assembly according to claim 4, characterized in that: The first ratchet component, the second ratchet component and the driving component are arranged along the extension direction of the rotating shaft, the second ratchet component is located between the first ratchet component and the driving component, and the abutment kit is located at the outer periphery corresponding to the first ratchet component, the outer periphery of the second ratchet component and the outer periphery of the driving component.

8. The insertion assembly according to claim 7, characterized in that: The abutment kit includes a first abutment portion and a second abutment portion, one end of the first abutment portion protrudes beyond one end of the second abutment portion in a direction from the second ratchet member toward the first ratchet member, the first abutment portion is used to cooperate with the driving member and the first ratchet member, and the second abutment portion is used to cooperate with the driving member and the second ratchet member.

9. The insertion assembly according to claim 8, characterized in that: The abutting sleeve further includes a connecting portion, which is integrally connected between the first abutting portion and the second abutting portion, and the first abutting portion, the second abutting portion and the connecting portion are made of elastic material.

10. The insertion assembly according to claim 8, characterized in that: The first abutting portion, the second abutting portion and the connecting portion are separated from each other and are made of elastic material.

11. The insertion assembly according to claim 8, characterized in that: The abutting set further includes a first restoring portion and a second restoring portion, wherein the first restoring portion and the second restoring portion are made of elastic material and respectively abut against the first abutting portion and the second abutting portion.

12. The insertion assembly according to claim 1, characterized in that: The actuating member is used to enable the driving member to have potential energy to rotate around the rotating shaft along a second rotation direction opposite to the first rotation direction.

13. An insertion assembly, characterized in that: Contains: Driving parts; An actuating member abutting against the driving member and used to enable the driving member to have potential energy to rotate around a rotation axis; An abutment kit, used for engaging with the driving member; a first ratchet member, which can rotate coaxially with respect to the driving member; when the first ratchet member rotates in a first rotation direction, the first ratchet member drives the abutment sleeve to disengage the abutment sleeve from the driving member located at the first position, so as to allow the actuating member to drive the driving member to rotate from the first position to the second position along a second rotation direction opposite to the first rotation direction around the rotating shaft; and when the actuating member drives the driving member to rotate from the first position to the second position along the second rotation direction, the abutment sleeve is engaged with the driving member located at the second position, so as to stop the driving member at the second position to prevent the driving member from rotating away from the second position along the second rotation direction; a second ratchet member, which can rotate coaxially with respect to the driving member; when the first ratchet member rotates along the second rotation direction, the second ratchet member is driven by the first ratchet member to rotate along the second rotation direction; when the second ratchet member is driven by the first ratchet member to rotate along the second rotation direction, the second ratchet member drives the abutment kit to disengage the abutment kit from the driving member at the second position; and when the second ratchet member drives the abutment kit to disengage the abutment kit from the driving member at the second position, the actuating member drives the driving member to rotate around the rotating shaft along the second rotation direction from the second position to a third position; A follower, movably engaged with the driving member, when the actuating member drives the driving member to rotate from the first position to the second position, the driving member drives the follower to move along the insertion direction, and when the actuating member drives the driving member to rotate from the second position to the third position, the driving member drives the follower to move along the retraction direction; The inserting member is arranged on the follower and can move along the inserting direction or the retracting direction together with the follower.

14. An automatic injection system, characterized in that: Contains: a housing; and An insert assembly is installed in the housing, and the insert assembly includes: Driving parts; An actuating member abutting against the driving member and used to enable the driving member to have potential energy to rotate around a rotation axis; An abutment kit, used for engaging with the driving member at the first position, so as to stop the driving member at the first position to prevent the driving member from rotating around the rotation axis from the first position to the second position; a first ratchet member, which can rotate coaxially with respect to the driving member, and when the first ratchet member rotates along a first rotation direction, the first ratchet member drives the abutment kit to disengage the abutment kit from the driving member at the first position, so as to allow the actuating member to drive the driving member to rotate from the first position to the second position; A follower, movably engaged with the driving member, when the actuating member drives the driving member to rotate from the first position to the second position, the driving member drives the follower to move along the insertion direction; as well as The inserting member is arranged on the driven member and can move along the inserting direction together with the driven member.

15. The automatic injection system according to claim 14, characterized in that: When the driving member rotates around the rotating shaft from the first position to the second position, the abutment kit is also used to engage with the driving member located at the second position, thereby stopping the driving member at the second position to prevent the driving member from rotating around the rotating shaft and leaving the second position. The insertion assembly also includes a second ratchet member, which can rotate coaxially relative to the driving member. When the first ratchet member rotates along the first rotation direction, the second ratchet member is elastically deformed under the action of the first ratchet member and does not rotate along the first rotation direction. When the first ratchet member rotates along a second rotation direction opposite to the first rotation direction, the second ratchet member is driven by the first ratchet member to rotate along the second rotation direction.

16. The automatic injection system according to claim 15, characterized in that: When the second ratchet member is driven by the first ratchet member to rotate along the second rotation direction, the second ratchet member drives the abutment kit to disengage the abutment kit from the driving member located at the second position, and when the second ratchet member drives the abutment kit to disengage the abutment kit from the driving member located at the second position, the actuator drives the driving member to rotate around the rotating shaft to leave the second position, and when the actuator drives the driving member to rotate around the rotating shaft to leave the second position, the driving member drives the follower to move in the retraction direction, and when the driving member drives the follower to move in the retraction direction, the follower drives the inserter to move along with the follower in the retraction direction.

17. The automatic injection system according to claim 16, characterized in that: The driving member includes a driving insertion bevel and a driving retraction bevel, and the driving insertion bevel and the driving retraction bevel are connected to each other. When the actuator drives the driving member to rotate around the rotating shaft from the first position to the second position, the driving insertion bevel is used to abut against the follower to drive the follower to move along the insertion direction, and when the actuator drives the driving member to rotate around the rotating shaft from the second position to the third position, the driving retraction bevel is used to abut against the follower to drive the follower to move along the retraction direction.

18. The automatic injection system according to claim 17, characterized in that: The first ratchet component, the second ratchet component and the driving component are arranged along an extension direction of the rotating shaft, the second ratchet component is located between the first ratchet component and the driving component, and the abutment kit is located at the outer periphery corresponding to the first ratchet component, the outer periphery of the second ratchet component and the outer periphery of the driving component.

19. The automatic injection system according to claim 18, characterized in that: The abutment kit includes a first abutment portion and a second abutment portion, one end of the first abutment portion protrudes beyond one end of the second abutment portion in a direction from the second ratchet member toward the first ratchet member, the first abutment portion is used to cooperate with the driving member and the first ratchet member, and the second abutment portion is used to cooperate with the driving member and the second ratchet member.

20. The automatic injection system according to claim 14, characterized in that: The actuating member is used to enable the driving member to have potential energy to rotate around the rotating shaft along a second rotation direction opposite to the first rotation direction.

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