Electric control blood sampling pen
By designing an electronically controlled blood collection pen, and using an electric drive device and an electronic control device to realize the automatic needle insertion and needle extraction operation of the blood collection needle, the problems of user finger pain and patient pain caused by the mechanical blood collection pen during continuous needle insertion operation are solved, the accuracy and standardization of the needle insertion are improved, and the patient experience is improved.
Patent Information
- Application Number
- CN202421767507.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-25
AI Technical Summary
During continuous needle insertion operation, existing mechanical blood collection pens can easily cause soreness in the user's fingers, and may cause errors to drag the needle, causing pain in the patient and affecting standardized operation.
An electronically controlled blood collection pen is designed, adopting a structure including a shell, a needle sleeve device, an electric drive device and an electric control device. The electric drive device is composed of a coil device, a fixed iron core, a movable iron core and a spring. The electronic control device includes a power supply circuit, a control circuit, a driving circuit and a switch. The axial movement of the needle sleeve device is driven by the electric drive device to realize the automatic needle pinning and needle extraction operation of the blood collection needle.
It improves the accuracy and standardization of the needle, reduces user's finger soreness and operation errors, improves the patient's experience, and achieves safer and more efficient blood collection operations.
Smart Images
Figure CN222983057U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of blood collection medical devices, and particularly relates to an electric control blood collection pen. Background Art
[0002] In the prior art, a mechanical blood collection pen generally manually presses a push rod to drive a mechanical mechanism and a spring to reciprocate, and the mechanical mechanism and the spring drive a blood collection needle to perform needle insertion and needle extraction actions. However, for the continuous needle insertion workload of removing blood stasis and dissolving thrombus, it is easy for the user of the blood collection pen to experience finger soreness, and there may be phenomena such as dragging the needle by mistake and causing pain to the patient, which brings difficulties to the standardized operation. Summary of the Invention
[0003] In order to overcome the deficiencies of the prior art, the utility model provides an electric control blood collection pen.
[0004] The technical solution adopted by the utility model to solve its technical problems is: the blood collection pen is provided with a housing, a needle sleeve device, an electric drive device and an electric control device. The electric drive device includes a coil device, a fixed iron core, a movable iron core and a spring. The electric control device includes a power supply circuit, a control circuit, a drive circuit and a switch. The axial movement of the needle sleeve device is driven by the electric drive device. One end of the movable iron core is connected or separated from the needle sleeve device by an object, and the needle sleeve device can axially move with the movable iron core.
[0005] At one end of the blood collection pen in contact with the human skin, a touch switch is further provided, and the touch switch is electrically connected to the control circuit.
[0006] The electric control device is further provided with a stop / manual / automatic function selection switch.
[0007] The utility model has the following advantages.
[0008] 1. Quick, sensitive and safe in response.
[0009] 2. The accuracy, standardization and implementation control degree of needle insertion are improved.
[0010] 3. The experience of patients is improved.
[0011] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously.
[0012] The following further describes the electric control blood collection pen of the utility model with reference to the drawings and embodiments. Brief Description of the Drawings
[0013] Figure 1 is an assembled three-dimensional schematic diagram of the electric control blood collection pen of the utility model.
[0014] Figure 2 is an exploded view A schematic diagram of the electric control blood collection pen of the utility model.
[0015] Figure 3 It is an exploded B view of the electro-controlled blood collection pen of the present utility model.
[0016] In the figure, 101. Circuit board top cover, 102. Circuit board, 103. Circuit board housing, 104. Battery, 105. Battery housing, 106. Coil device, 107. Coil device fixing bracket, 108. Needle sleeve assembly, 109. Spring, 201. Needle sleeve housing, 2a. Switch, 6a. Coil, 6b. Fixed iron core, 8a. Movable iron core, 8b. Needle sleeve device. Specific embodiments
[0017] Embodiment 1: The blood collection pen is provided with a housing, a needle sleeve device (8b), an electric drive device and an electric control device. The electric drive device includes a coil device (106), a fixed iron core (6b), a movable iron core (8a) and a spring (109). The electric control device includes a power supply circuit, a control circuit, a drive circuit and a switch (2a). One end of the movable iron core (8a) of the electric drive device is connected to the needle sleeve device (8b). The electric drive device is also electrically connected to the electric control device. The needle sleeve device (8b) can axially move along with the movable iron core (8a). The needle sleeve device (8b) and the movable iron core (8a) are combined into a needle sleeve assembly (108). The spring (109) is arranged between the needle sleeve assembly (108) and the needle sleeve housing (201).
[0018] In Figure 1 , Figure 2 , Figure 3 , the power supply circuit is provided with a rechargeable or non-rechargeable battery (104). When carried and used, the electric drive device and the electric control device are powered by the battery (104). The button of the switch (2a) is arranged at the center position of the circuit board top cover (101). This push-button switch (2a) can also be replaced by a touch switch. The switch (2a) is used to control the operation or stop of the electric drive device. The blood collection needle is movably connected to the needle sleeve device (8b). When the electric drive device is powered on, the needle sleeve assembly (108) pushes the blood collection needle in the needle sleeve housing (201) to move outwards. When the electric drive device is powered off, the needle sleeve assembly (108) is retracted and reset by the spring (109).
[0019] At the end of the blood collection pen in contact with the patient's skin, that is, the blood collection needle outlet end of the needle sleeve housing (201), there is also a touch switch. The touch switch is electrically connected to the control circuit and is used to control the operation or stop of the electric drive device. When the touch switch touches the human skin once or continuously, the needle sleeve assembly (108) makes a single-point movement or continuous single-point movements. When the touch switch leaves the human skin, the needle sleeve assembly (108) immediately stops moving.
[0020] Principle 1: The operator holds the blood collection pen and touches the skin of the person to be blood-collected with the end where the blood collection needle is installed. Each time the operator's finger presses / touches the switch (2a), the movable iron core (8a) immediately makes a round-trip movement once. The electronic control device is also equipped with a stop / manual / automatic function selection switch. When the operator selects the automatic function, at this time, the operator's finger presses / touches and holds the switch (2a) without moving or presses the switch (2a) once, and the movable iron core (8a) continuously makes round-trip movements according to the set frequency. Only when the operator's finger presses / touches the switch (2a) again, the movable iron core (8a) stops moving. When the operator selects the stop function, at this time, when the operator's finger presses / touches the switch (2a), the movable iron core (8a) will not move either.
[0021] Principle 2: The electronic control device is also provided with a touch switch at the end of the blood collection pen that touches the person to be blood-collected. When the operator selects manual, holds the blood collection pen and touches the touch switch at the end where the blood collection needle is installed to the skin of the person to be blood-collected. Each time the operator's finger presses / touches the switch (2a), the movable iron core (8a) makes a round-trip movement once. When one end of the blood collection needle does not touch the skin, the movable iron core (8a) does not move. When the operator selects the automatic function and one end of the blood collection needle touches the skin or slides on the skin, the operator's finger presses / touches and holds the switch (2a) without moving or presses the switch (2a) once, and the movable iron core (8a) continuously makes round-trip movements according to the set frequency. Only when the operator's finger presses / touches the switch (2a) again and / or one end of the blood collection needle leaves the skin, the movable iron core (8a) stops moving. When the operator selects the stop function, at this time, when the operator's finger presses / touches the switch (2a) and / or one end of the blood collection needle touches the skin, the movable iron core (8a) will not move either.
[0022] The above embodiments only describe the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various changes and improvements made by those skilled in the art to the technical solutions of the present invention all belong to the protection scope of the present invention.
Claims
1. An electric-controlled blood collection device, which includes a housing, a needle sleeve device, an electric drive device and an electric control device, wherein the electric drive device includes a coil device, a fixed iron core, a movable iron core and a spring, and the electric control device includes a power supply circuit, a control circuit, a drive circuit and a switch, wherein: The axial movement of the needle sleeve device is driven by the electric drive device, one end of the movable iron core is connected to the needle sleeve device or connected to the needle sleeve device through a spacer, and the needle sleeve device can move axially with the movable iron core.
2. The electronically controlled blood collection device according to claim 1, characterized in that: A touch switch is also arranged at the end of the blood collection pen that contacts the human skin, and the touch switch is electrically connected to the control circuit.
3. The electronically controlled blood collection device according to claim 1, characterized in that: The electric control device is also provided with a stop / manual / automatic function selection switch.