注射泵

Abstract

本申请实施例提供了一种注射泵，包括基座、驱动模块以及切换模块，其中，基座设置有用于固定注射器的固定位，驱动模块包括驱动部件、传动部件及注射推动部件，驱动部件可通过传动部件驱动注射推动部件运动以执行注射操作，切换模块包括卡合件及第一弹性件，并具有可切换的第一状态与第二状态，在第一状态下，第一弹性件输出弹性力以使卡合件与传动部件传动连接，以进入自动移动模式，在第二状态下，通过向卡合件施力以使第一弹性件弹性蓄能，卡合件与传动部件脱离以使以进入手动移动模式。如此设置，以使得注射泵在自动移动模式对注射器执行自动注射，在手动移动模式下可以快速移动复位，提高了注射泵的注射效率及注射器更换效率。

Claims

1. An injection pump for providing power to a syringe to perform an injection operation, characterized in that, The injection pump includes: The base is provided with a fixing position for fixing the syringe; A drive module includes a drive component, a transmission component, and an injection push component. The transmission component is connected to both the drive component and the injection push component, so that the drive component drives the injection push component to move through the transmission component. A switching module is provided to change the movement mode of the injection pushing component relative to the transmission component. The movement mode includes a manual movement mode and an automatic movement mode. The switching module includes at least a locking component and a first elastic component, and has a switchable first state and a second state. In the first state, the first elastic element provides elastic force to the engaging element, so that the engaging element is connected to the transmission component to switch the movement mode of the injection pushing component to the automatic movement mode. In the automatic movement mode, the driving component can drive the injection pushing component to move. In the second state, by triggering the engaging member, force is applied to the first elastic member through the engaging member, so that the first elastic member elastically stores energy and the engaging member disengages from the transmission component, thereby switching the movement mode of the injection pushing component to the manual movement mode, and in the manual movement mode, the injection pushing component is driven by external force.

2. The syringe pump of claim 1, wherein, The injection pushing component forms a receiving cavity with a first opening, the engaging component is partially exposed in the receiving cavity, and the engaging component is also provided with a second opening, the second opening being located inside the receiving cavity, and the transmission component passing through the receiving cavity through the second opening.

3. The syringe pump of claim 2, wherein, The first elastic element is at least partially disposed within the receiving cavity and located on at least one side of the engaging member, so as to output an elastic force to the engaging member so that the engaging member abuts against the transmission component without being triggered by an external force.

4. The syringe pump of claim 3, wherein, The engaging member is at least partially exposed outside the first opening to form a switching section. The switching section is used to trigger the first elastic member to elastically store energy by external force, so that the switching module switches from the first state to the second state, thereby causing the injection pushing component to switch from the automatic movement mode to the manual movement mode.

5. The syringe pump of claim 1, wherein, The injection pump includes a sensing module disposed at one end of the base near the injection pushing component, for obtaining the relative distance between the injection pushing component and the base, so that the driving component stops driving the injection pushing component after the syringe completes the injection operation.

6. The syringe pump of claim 1, wherein, The injection pushing component moves relative to the base in a first direction under the drive of the driving component. The base is disposed in the first direction of movement of the injection pushing component, so that the injection pushing component provides power for the injection operation to the syringe in the fixed position.

7. The syringe pump of claim 6, wherein, The injection pump includes a guide module, which is disposed between the base and the drive component along the first direction and is movably connected to the injection pushing component.

8. The syringe pump of claim 1, wherein, The transmission component includes a first transmission structure, and the engaging member has a second transmission structure and a third opening. The second transmission structure corresponds to the first transmission structure and is used to drive the first transmission structure in the automatic movement mode so that the transmission component drives the injection pushing component to move. The transmission component disengages from the engaging component through the third opening, thereby switching the injection pushing component from the automatic movement mode to the manual movement mode.

9. The syringe pump of claim 1, wherein, The base includes a fixing mechanism, which is disposed at the fixing position and cooperates with the fixing position to fix the syringe.

10. The syringe pump of claim 9, wherein, The fixing mechanism includes a fixing member, a second elastic member, and an adjusting member. The fixing member is used to cooperate with the fixing position to fix the syringe. The adjusting member is connected to the second elastic member and the fixing member respectively. The second elastic member is used to fix the fixing member to the fixing position by outputting an elastic force to the adjusting member, and the elastic force output by the second elastic member can be adjusted by adjusting the adjusting member.

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