Automatic nuclide drug administration device

Abstract

The utility model discloses an automatic nuclide drug administration device which comprises a metal probe of a hollow structure, a sensor circuit board electrically connected with the metal probe, and an integrated valve pump of which a first port is communicated with the upper end of the metal probe through a connecting pipe and a second port is connected with a conveying pipe, the controller is electrically connected with the integrated valve pump and the sensor circuit board; the metal probe, the connecting pipe, the integrated valve pump and the conveying pipe jointly form a fluid channel, and the integrated valve pump is used for providing power for forward or reverse flowing of fluid in the fluid channel. The metal probe is electrically connected with the sensor circuit board, when the metal probe is in contact with liquid medicine, the integrated valve pump starts to draw the liquid medicine out of the medicine storage tank after sequentially passing through the metal probe, the connecting pipe and the conveying pipe, and the liquid level of the liquid medicine can be accurately detected. And after dosing is completed, the integrated valve pump can reversely extract the cleaning liquid so as to wash the metal probe.

Description

Technical Field

[0001] The utility model relates to the technical field of drug administration, in particular to an automatic drug administration device for nuclides. Background Art

[0002] Radionuclide therapy is adopted by more and more medical institutions as an effective means of treating diseases such as tumors, and has achieved good clinical treatment results. It also shows an increasingly broad application prospect. Radionuclide drugs are usually stored and transported in lead-trap tanks. Before use, medical staff in clinical departments use a drug delivery device to draw the radionuclide drugs from the tank, dilute them, and then distribute them to each patient. The traditional drug delivery device usually uses a conventional TIP head at the drug suction end, which does not have a liquid level detection function. In the process of drawing the drug solution, it is difficult for medical staff to control the position of the drug delivery device, and they need to repeatedly adjust the position of the drug delivery device near the lead-trap tank, which causes harm to the health of medical staff. Utility Model Content

[0003] In order to solve the above problems, the present application provides an automatic radionuclide drug delivery device, which can accurately detect the position of the drug solution.

[0004] The purpose of the utility model is achieved through the following technical solutions: an automatic drug delivery device for radionuclide drugs, comprising a metal probe with a hollow structure, a sensor circuit board electrically connected to the metal probe, an integrated valve pump whose first port is connected to the upper end of the metal probe through a connecting tube and whose second port is connected to a delivery tube, and a controller electrically connected to the integrated valve pump and the sensor circuit board; the metal probe, the connecting tube, the integrated valve pump and the delivery tube together form a fluid passage, and the integrated valve pump is used to provide power for the fluid to flow forward or reverse in the fluid passage.

[0005] When the metal probe contacts the liquid medicine, the sensor circuit board receives the signal from the metal probe, and the sensor circuit board sends a signal to the controller, and the integrated valve pump starts to pump the liquid medicine out of the medicine storage tank through the metal probe, the connecting pipe, the integrated valve pump and the delivery pipe in sequence, which can accurately detect the liquid level of the liquid medicine. When the drug is administered, the integrated valve pump can return to extract the cleaning fluid to rinse the metal probe.

[0006] As another preferred solution, the automatic radionuclide drug delivery device further comprises a housing; the sensor circuit board is arranged inside the housing, and the upper end of the metal probe extends into the housing and is electrically connected to the sensor circuit board.

[0007] The metal probe is electrically connected to the sensor circuit board through a conductive sheet.

[0008] The conductive sheet is fixed inside the housing by bolts.

[0009] A compression spring and a compression gasket located below the compression spring are sleeved on the bolt, and the compression gasket presses the conductive sheet onto the inner wall of the shell.

[0010] The shell is provided with a hook.

[0011] Compared with the prior art, this application has the following beneficial effects:

[0012] The metal probe of the utility model is electrically connected to the sensor circuit board. When the metal probe contacts the drug solution, the integrated valve pump starts to draw the drug solution out of the drug storage tank through the metal probe, the connecting pipe and the delivery pipe in sequence, which can accurately detect the liquid level of the drug solution. When the drug is administered, the integrated valve pump can reversely draw the cleaning liquid to rinse the metal probe.

[0013] Some additional features of the present application may be explained in the following description. Some additional features of the present application will be apparent to those skilled in the art by inspection of the following description and corresponding drawings or understanding of the production or operation of the embodiments. The features disclosed in the present application may be realized and achieved by practice or use of various methods, means and combinations of the specific embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The exemplary embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation of the present application. In each figure, the same reference numeral represents the same component.

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a top view of the utility model.

[0017] Figure 3 for Figure 2 Cross-sectional view at CC in the middle.

[0018] Figure 4 for Figure 2 Cross-sectional view at DD in the middle.

[0019] Figure 5 This is a schematic diagram of the working principle of the integrated valve pump of the utility model.

[0020] The figure markings in the above drawings are: 1-metal probe, 3-connecting pipe, 4-integrated valve pump, 5-delivery pipe, 6-housing, 7-sensor circuit board, 8-connector, 9-bolt, 10-compression spring, 11-conductive sheet, 12-compression gasket, 13-hook. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0022] Example

[0023] like Figure 1 , 2 As shown, this embodiment discloses an automatic drug delivery device for nuclide drugs, which includes a metal probe 1, a sensor circuit board 7, an integrated valve pump 4 and a controller. Among them, the metal probe 1 is a hollow structure, that is, there is a fluid channel inside the metal probe 1, and the drug solution can flow through the inside of the metal probe 1. The sensor circuit board 7 is electrically connected to the metal probe 1. When working, the sensor circuit board 7 energizes the metal probe 1. When the metal probe 1 contacts the liquid surface, the voltage on the metal probe 1 changes and is fed back to the sensor circuit board 7, so as to accurately detect the liquid surface position. The first port of the integrated valve pump 4 is connected to the upper end of the metal probe 1 through the connecting pipe 3, and the second port thereof is connected to the delivery pipe 5. The controller is electrically connected to the integrated valve pump 4 and the sensor circuit board 7. When the sensor circuit board 7 and the metal probe 1 detect the drug solution, the sensor circuit board 7 sends a signal to the controller, and the controller controls the integrated valve pump 4 to work, and the drug solution is extracted from the drug storage tank after passing through the metal probe 1, the connecting pipe 3 and the delivery pipe 5 in sequence. In addition, after the drug delivery is completed, the integrated valve pump 4 can return to extract the cleaning liquid to rinse the metal probe 1.

[0024] Through the above structure, the sensor circuit board 7 and the metal probe 1 together form a liquid level sensor to detect the liquid level of the radionuclide solution. In this structure, the metal probe 1 plays the role of liquid level detection and fluid delivery. The sensor circuit board 7 can be implemented by using a circuit board of a traditional liquid level sensor, which is usually provided with circuits such as signal conversion and signal output. Since the sensor circuit board 7 is a traditional existing technology, it will not be described in detail here.

[0025] In specific implementation, the integrated valve pump 4 can adopt the 50 series integrated plunger pump products produced by Shenzhen Kentuo Fluid Technology Co., Ltd., and its working process is as follows: Figure 5As shown, when the drug solution is detected and started, the three-way solenoid valve on it is energized, that is, the NC port is opened and the NO port is closed. After 40ms, the plunger pump SP1 sends a pulse to control the plunger to absorb the drug solution in the liquid tank 1; after completing the liquid absorption instruction, the plunger pump SP1 is powered off and stops working. After 40ms, the three-way solenoid valve is powered off, that is, the NC port is closed and the NO port is opened. After 40ms, the plunger pump SP1 sends a pulse to control the plunger to discharge the drug solution, and the drug solution is discharged into the corresponding container through the delivery pipe 5. When the drug is administered, the integrated valve pump 4 returns to extract the cleaning liquid in the liquid tank 2 to rinse the metal probe 1. The process is similar to the above steps, that is, the N0 port is opened and the NC port is closed first. After absorbing the cleaning liquid, the NC port is opened and the NO port is closed, and the cleaning liquid is sprayed from the metal probe 1 to rinse the metal probe 1. The controller is used to control the operation of the integrated valve pump 4 according to the detection signal. The controller that controls the operation of the pump, motor and other equipment through the detection signal of the sensor belongs to the existing mature technology, and the controller is not described in detail here.

[0026] like Figure 3 , 4 As shown, in a specific implementation, the sensor circuit board 7 can be arranged inside a housing 6, the upper end of the metal probe 1 extends upward into the housing 6 and is electrically connected to the sensor circuit board 7; an insulating sleeve can be arranged at the position where the metal probe 1 passes through the shell wall of the housing 6. A connector 8 can be arranged at the upper end of the metal probe 1, one end of the connecting tube 3 extends into the housing 6 and is connected to the connector 8, so that the metal probe 1 can be connected to the connecting tube 3. A hook 13 is arranged on the housing 6 to facilitate fixing the housing 6.

[0027] Specifically, the metal probe 1 can be electrically connected to the sensor circuit board 7 through the conductive sheet 11 , that is, the metal probe 1 passes through the conductive sheet 11 and fits tightly with the conductive sheet 11 , so that the metal probe 1 can be electrically connected to the sensor circuit board 7 through the conductive sheet 11 .

[0028] In addition, the conductive sheet 11 can be fixed to the inner wall of the outer shell 6 by a clamping structure. Specifically, the clamping structure includes a bolt 9, a clamping spring 10 and a clamping gasket 12. The bolt 9 passes through the conductive sheet 11 and is screwed into the inner wall of the outer shell 6. The clamping spring 10 and the clamping gasket 12 are both sleeved on the bolt 9, and the clamping gasket 12 is located below the clamping spring 10. Through the above structure, the clamping spring 10 applies a downward thrust to the clamping gasket 12, so that the clamping gasket 12 presses the conductive sheet 11 on the inner wall of the outer shell 6 to prevent the conductive sheet 11 from moving. The outer shell 6 can be made of insulating material, such as plastic material; of course, the outer shell 6 can also be made of metal material. At this time, an insulating gasket needs to be fixed inside the outer shell 6, and the conductive sheet 11 is pressed on the insulating gasket.

[0029] It should be noted that all features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0030] In addition, the above specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the utility model, and these solutions also belong to the disclosure scope of the utility model and fall within the protection scope of the utility model. Those skilled in the art should understand that the utility model specification and its drawings are illustrative and do not constitute a limitation of the claims. The protection scope of the utility model is defined by the claims and their equivalents.

Claims

1. A radionuclide drug automatic dosing device, characterized in that: The invention comprises a metal probe (1) with a hollow structure, a sensor circuit board (7) electrically connected to the metal probe (1), an integrated valve pump (4) whose first port is connected to the upper end of the metal probe (1) via a connecting pipe (3) and whose second port is connected to a delivery pipe (5), and a controller electrically connected to the integrated valve pump (4) and the sensor circuit board (7); the metal probe (1), the connecting pipe (3), the integrated valve pump (4) and the delivery pipe (5) together form a fluid passage, and the integrated valve pump (4) is used to provide power for the fluid to flow in the fluid passage in a forward or reverse direction.

2. The automatic drug delivery device for nuclide drugs according to claim 1, characterized in that: It also comprises a housing (6); the sensor circuit board (7) is arranged inside the housing (6); the upper end of the metal probe (1) extends into the housing (6) and is electrically connected to the sensor circuit board (7).

3. The automatic drug delivery device for nuclide drugs according to claim 2, characterized in that: The metal probe (1) is electrically connected to the sensor circuit board (7) via a conductive sheet (11).

4. The automatic drug delivery device for nuclide medicine according to claim 3, characterized in that: The conductive sheet (11) is fixed inside the housing (6) by means of bolts (9).

5. The automatic drug delivery device for nuclide medicine according to claim 4, characterized in that: The bolt (9) is sleeved with a compression spring (10) and a compression gasket (12) located below the compression spring (10), and the compression gasket (12) presses the conductive sheet (11) against the inner wall of the housing (6).

6. The automatic drug delivery device for nuclide medicine according to claim 5, characterized in that: The housing (6) is provided with a hook (13).

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