Liquid medicine compensation mechanism for liquid medicine channel in puncture outfit

Abstract

The invention discloses a liquid medicine compensation mechanism for a liquid medicine channel in a puncture outfit, and belongs to the related technical field of liquid medicine compensation of infusion robots, the liquid medicine compensation mechanism comprises an infusion bag, an infusion bag puncture window, the puncture outfit and a puncture manipulator, a puncture outfit tail end infusion tube inner air column detector is arranged at the tail end of the puncture outfit, and a drip cup inner liquid level detector is arranged at a drip cup part of the puncture outfit; infusion tube locking mechanisms are arranged at the lower end of a drip cup part of the puncture outfit at intervals, and a liquid medicine compensation mechanism of a liquid medicine channel in the puncture outfit has three compensation modes: a linear extrusion compensation and crankshaft extrusion mode, a puncture motor rotation force extrusion mode and a puncture motor bidirectional transmission liquid level compensation mode. The technical problem that in the prior art, when an infusion bottle switching mechanism part and an infusion container inner liquid level recognition mechanism cannot recognize part of liquid level changes in an infusion container or some special infusion requirements are met is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field related to liquid medicine compensation of infusion robots, and specifically relates to a liquid medicine compensation mechanism for a liquid medicine channel in a puncture device. Background Art

[0002] In the medical field, infusion therapy is a common and widely used treatment method, which involves the administration of drugs or nutrients into the patient's body through intravenous infusion. With the development of medical technology, infusion robots, as an automated device, have been widely used in clinical practice to improve the efficiency and safety of the infusion process. Through automated operation, infusion robots can reduce the workload of medical staff, reduce human operating errors, and improve the accuracy and reliability of infusion.

[0003] However, existing infusion robots face some challenges in practical applications. When the infusion bottle switching mechanism is partly or the liquid level recognition mechanism in the infusion container cannot recognize the liquid level changes in some infusion containers or there are some special infusion requirements, in order to better ensure the effective switching effect of the infusion bottle, ensure that the puncture site of the infusion device is filled with infusion liquid and the liquid level of the drip pot is maintained at a safe and effective position to prevent safety hazards such as infusion overflow, ensure the normal operation of the infusion robot, and ensure clinical infusion safety. Therefore, it is necessary to develop a liquid compensation mechanism for the liquid channel in the puncture device. Summary of the invention

[0004] In view of the above problems, the present invention provides a liquid compensation mechanism in the liquid channel of the puncture device, which is used to solve the technical problems in the prior art when the infusion bottle switching mechanism part and the liquid level identification mechanism in the infusion container cannot identify the liquid level changes in some infusion containers or some special infusion requirements.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] The liquid medicine compensation mechanism of the liquid medicine channel in the puncture device comprises an infusion bag, an infusion bag puncture window, a puncture device and a puncture manipulator. The tail end of the puncture device is provided with an air column detector in the infusion tube at the tail end of the puncture device, the drip pot part of the puncture device is provided with a liquid level detector in the drip pot and a liquid medicine compensation mechanism for the puncture device pipeline, and the drip pot part of the puncture device is provided with an infusion tube locking mechanism at the lower end spacing. The liquid medicine compensation mechanism of the liquid medicine channel in the puncture device is divided into three compensation modes: linear extrusion compensation and crankshaft extrusion mode, puncture motor rotation force extrusion mode, and puncture motor bidirectional transmission liquid level compensation mode.

[0007] As a further improvement of the above scheme, linear extrusion compensation and crankshaft extrusion are respectively arranged on both sides of the drip pot; the linear extrusion compensation is that the output end of the linear motor is connected to the transmission screw, and the transmission screw is inserted into the vertical plate and connected to the telescopic transmission block, and the extrusion part of the telescopic transmission block is provided with a beveled part.

[0008] As a further improvement of the above solution, the crankshaft extrusion method is that the output end of the crankshaft motor is connected to the crankshaft.

[0009] As a further improvement of the above scheme, when the puncture device pipeline liquid compensation mechanism is a linear extrusion compensation and crankshaft extrusion method, the puncture robot transmission mechanism is that the output end of the transmission motor is connected to the third screw rod through the transmission assembly, and the third screw rod is connected to the puncture robot through the lifting block.

[0010] As a further improvement of the above scheme, the puncture motor rotational force extrusion method is extrusion transmission block extrusion, the extrusion transmission block and the first extrusion block are an inclined wedge mechanism; the first extrusion block is arranged at the side end of the drip pot; a transmission rod is arranged at the upper end of the extrusion transmission block, and the middle and upper ends of the transmission rod are respectively inserted into the connecting block and the lifting block; the second screw rod is connected to the output end of the first motor through the connecting block; the puncture robot is arranged at the side end of the lifting block through the support block.

[0011] As a further improvement of the above solution, a spring is arranged in the first extrusion block.

[0012] As a further improvement of the above scheme, the bidirectional transmission liquid level compensation method of the puncture motor is extrusion by the second extrusion block, and the second extrusion block and the screw transmission block are an inclined wedge mechanism; the screw transmission block is arranged at the side end of the drip pot; the screw transmission block is inserted in the first screw, and the middle part of the first screw is inserted in the connecting block, and the upper end of the connecting block is also provided with a first screw, and the first screw at the upper end is arranged in the lifting block; the first screw arranged up and down is connected to the output end of the first motor through the connecting block; the puncture robot is arranged at the side end of the lifting block through the support block.

[0013] As a further improvement of the above solution, a spring is arranged in the second extrusion block.

[0014] As a further improvement of the above scheme, the infusion tube locking mechanism includes a locking mechanism motor, the output end of the locking mechanism motor is connected to the locking mechanism screw, and the locking mechanism screw is connected to the locking block; a bevel portion is provided on the top of the locking block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides a drug liquid compensation mechanism in the drug liquid channel of the puncture device, which can ensure that the puncture device is always filled with drug liquid during the infusion process, avoid air entry, reduce safety hazards such as infusion overflow, and improve the safety and reliability of infusion.

[0017] The air column detector installed at the tail end of the puncture device can monitor the air column in the infusion tube at the tail end of the puncture device in real time, detect and compensate the liquid medicine in time, prevent bubbles from entering the patient's body, and ensure the safety of infusion.

[0018] The liquid level change in the drip pot is monitored by the liquid level detector, and the liquid compensation mechanism in the liquid channel of the puncture device automatically compensates the liquid according to the detection result, ensuring that the liquid level of the drip pot remains at a safe and effective position, thereby improving the stability of the infusion process.

[0019] The infusion tube locking mechanism ensures the stability of the infusion tube during the compensation process, prevents drug leakage, and improves the safety of the infusion process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the puncture device pipeline liquid compensation mechanism in the present invention, which is a linear extrusion compensation method and a crankshaft extrusion method.

[0021] Figure 2 It is a schematic diagram of the puncture device pipeline liquid compensation mechanism in the present invention being a puncture motor rotation force extrusion method.

[0022] Figure 3 It is a schematic diagram of the liquid compensation mechanism of the puncture device pipeline in the present invention for the two-way transmission liquid level compensation of the puncture motor.

[0023] In the figure: 1. infusion bag; 2. puncture window of infusion bag; 3. puncture device; 4. puncture manipulator; 5. gas column detector in the infusion tube at the tail end of the puncture device; 6. crankshaft motor; 7. crankshaft; 8. liquid level detector in the drip pot; 9. infusion tube locking mechanism; 901. locking mechanism motor; 902. locking mechanism screw; 903. locking block; 10. telescopic transmission block; 11. transmission screw; 12. linear motor; 13. transmission motor; 14. third screw; 15. first extrusion block; 16. extrusion transmission block; 17. transmission rod; 18. first motor; 19. lifting block; 20. spring; 21. second extrusion block; 22. screw transmission block; 23. first screw; 24. second screw; 25. connecting block; 26. moving block. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution, the present invention is described in detail below in conjunction with embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0025] like Figure 1-3As shown, the specific scheme of this embodiment is: a liquid compensation mechanism for a liquid channel in the puncture device, comprising an infusion bag 1, an infusion bag puncture window 2, a puncture device 3 and a puncture manipulator 4, a gas column detector 5 in the infusion tube at the tail end of the puncture device 3 is arranged, a liquid level detector 8 in the drip pot is arranged at the drip pot part of the puncture device 3, and an infusion tube locking mechanism 9 is arranged at the lower end interval of the drip pot part of the puncture device 3, wherein the liquid compensation mechanism for the liquid channel in the puncture device is divided into three compensation modes: linear extrusion compensation and crankshaft extrusion mode, puncture motor rotation force extrusion mode, and puncture motor bidirectional transmission liquid level compensation mode.

[0026] like Figure 1 As shown, as a preferred mode of the above embodiment, the linear extrusion compensation and the crankshaft extrusion mode are respectively arranged on both sides of the drip pot part; the linear extrusion compensation is that the output end of the linear motor 12 is connected to the transmission screw 11, and the transmission screw 11 is inserted into the vertical plate and connected to the telescopic transmission block 10, and the extrusion part of the telescopic transmission block 10 is provided with a beveled part.

[0027] The crankshaft extrusion method is that the output end of the crankshaft motor 6 is connected to the crankshaft 7.

[0028] When the liquid compensation mechanism of the liquid channel in the puncture device is a linear extrusion compensation and crankshaft extrusion mode, the puncture robot transmission mechanism is that the output end of the transmission motor 13 is connected to the third screw rod 14 through the transmission assembly, and the third screw rod 14 is connected to the puncture robot 4 through the moving block 26.

[0029] The working principle and working process of the above technical solution are:

[0030] When the liquid level recognition mechanism in the infusion container of the infusion bottle switching mechanism of the infusion robot cannot recognize the liquid level change in some infusion containers or there are some special infusion requirements, the liquid level in the infusion container is close to the end of the infusion, and the infusion robot continues to infuse until the infusion liquid in the bottle is infused, and air enters the tube inside the puncture device 3, and the air column detector 5 placed in the infusion tube at the tail end of the puncture device detects the flow of the air column, which gives information to the central processing center, and the central processing center gives a signal, and the infusion tube locking mechanism 9 locks the catheter to intercept the flow. The puncture device 3 is driven by the puncture manipulator 4 to detach (pull out) from the puncture window of the infusion bottle to disconnect the infusion channel, and the infusion bottle switching mechanism sends the next bottle of infusion to the infusion work position at the upper end of the puncture manipulator 4, and the puncture manipulator 4 drives the puncture device 3 to enter the puncture window of the infusion bottle to open the infusion channel.

[0031] The linear motor 12 of the linear motor driven liquid medicine compensation mechanism drives the transmission screw 11 to push the linear telescopic transmission block 10 to squeeze the drip pot, and push the air column on the upper part of the air column detector 5 in the infusion tube at the tail end of the puncture back into the infusion bottle. The motor of the liquid level compensation mechanism drives the transmission screw 11 to retract the linear telescopic transmission block 10 to release the squeezing of the drip pot, and the infusion tube locking mechanism 9 releases the lock on the infusion tube. The liquid in the infusion bottle is driven by gravity or the pump force of the infusion pump to partially fill the puncture 3 with liquid medicine. The infusion enters the next process.

[0032] The crankshaft motor 6 of the crankshaft motor 6 driving the liquid medicine compensation mechanism drives the crankshaft 7, and the crankshaft 7 rotates to squeeze the drip pot, so that the air in the puncture device 3 is squeezed back to the infusion bottle. The crankshaft 7 partially rotates to release the squeezing of the drip pot and replenishes the liquid in the infusion bottle back to the tube in the puncture device 3.

[0033] like Figure 2 As shown, as a preferred mode of the above embodiment, the puncture motor rotational force extrusion mode is the extrusion transmission block 16 extrusion, the extrusion transmission block 16 and the first extrusion block 15 are an inclined wedge mechanism; the first extrusion block 15 is arranged at the side end of the drip pot; the upper end of the extrusion transmission block 16 is provided with a transmission rod 17, and the middle and upper ends of the transmission rod 17 are respectively inserted in the connecting block 25 and the lifting block 19; the second screw rod 24 is connected to the output end of the first motor 18 through the connecting block 25; the puncture robot 4 is arranged at the side end of the lifting block 19 through the support block.

[0034] As a preferred embodiment of the above embodiment, a spring 20 is provided in the first extrusion block 15 .

[0035] Puncturer manipulator linkage mechanism extrusion method:

[0036] The movement of the puncture manipulator 4 can be divided into driving the puncture device 3 upward from the initial position to enter the puncture window of the infusion container to open the infusion channel; driving the puncture device 3 downward to separate from the puncture window of the infusion container to cut off the infusion channel. Different compensation mechanisms for the liquid medicine channel in the puncture device are set at the transmission part of the puncture manipulator 4 to complete the squeezing or release of the drip pot of the infusion device to replenish part of the liquid medicine in the puncture device 3.

[0037] The downward and upward movement of the puncture robot (such as Figure 2 shown):

[0038] When the liquid level identification mechanism in the infusion container of the infusion container switching mechanism of the infusion robot cannot identify the liquid level changes in some infusion containers or there are some special infusion requirements, the infusion robot continues to infuse, the liquid medicine in the infusion container is completely infused, and air enters the puncture device 3. When the air column detector 5 placed in the infusion tube at the tail end of the puncture device detects the flow of air column, the air column detector 5 gives information to the central processing center, and the central processing center gives a signal, and the infusion tube locking mechanism 9 locks the tube to intercept the flow.

[0039] The puncture device 3 is detached (pulled out) from the puncture window of the infusion bag under the drive of the puncture manipulator 4, and the infusion channel is disconnected. During the recovery process, the puncture manipulator 4 carries the liquid compensation mechanism of the liquid channel in the puncture device on it to move downward. When the liquid compensation mechanism of the liquid channel in the puncture device passes through the extrusion transmission block 16, the extrusion transmission block 16 pushes the first extrusion block 15 to squeeze the drip pot; after the infusion container switching mechanism moves the next infusion container to the infusion working position, the puncture manipulator moves upward, driving the puncture device to insert into the puncture window 2 of the infusion bag on the infusion working position, and at the same time drives the liquid compensation mechanism on it. The liquid compensation mechanism of the liquid channel in the puncture device disengages from the squeezing transmission block 16, and the first squeezing block 15 retreats under the action of the spring 20 and returns to the initial position where the drip pot is not squeezed, and the drip pot returns to the unsqueezed state under the action of its own elastic (plastic) property; the puncture manipulator continues to move upward until the puncture device is completely inserted into the puncture window of the infusion bag to open the infusion channel; at this time, the liquid in the infusion bag enters the infusion pipeline at the puncture device end under the action of gravity and the plastic restoring force of the drip pot, so that the infusion pipeline is filled with liquid, the infusion tube locking mechanism 9 is released, and the infusion robot enters the normal infusion process.

[0040] The extrusion transmission block 16 and the first extrusion block 15 are an inclined wedge mechanism, and the vertical movement of the extrusion transmission block 16 is converted into the horizontal movement of the first extrusion block 15, thereby squeezing or releasing the drip pot. The vertical movement of the extrusion transmission block 16 is achieved by the rotation of the first motor 18 to drive the second screw 24 to rotate, driving the transmission rod 17 set in the lifting block 19 to move up and down, and the extrusion transmission block 16 is an integrated structure with the transmission rod 17, thereby realizing the vertical movement of the extrusion transmission block 16.

[0041] Here, the puncture device 3 is detached (pulled out) from the puncture window of the infusion bag under the drive of the puncture manipulator 4 to disconnect the infusion channel, or the puncture manipulator 4 moves upward with the puncture device 3. The rotation of the first motor 18 drives the second screw rod 24 to rotate, thereby driving the lifting block 19 inserted in the second screw rod 24 to move up and down, thereby driving the support block connected to the puncture manipulator 4 to move up and down.

[0042] like Figure 3As shown, as a preferred mode of the above-mentioned embodiment, the bidirectional transmission liquid level compensation mode of the puncture motor is extrusion by the second extrusion block 21, and the second extrusion block 21 and the screw transmission block 22 are an inclined wedge mechanism; the screw transmission block 22 is arranged at the side end of the drip pot; the screw transmission block 22 is inserted in the first screw 23, and the middle part of the first screw 23 is inserted in the connecting block 25, and the upper end of the connecting block 25 is also provided with the first screw 23, and the first screw 23 at the upper end is arranged in the lifting block 19; the first screw 23 arranged up and down is connected to the output end of the first motor 18 through the connecting block 25; the puncture robot 4 is arranged at the side end of the lifting block 19 through the support block.

[0043] like Figure 1 As shown, as a preferred embodiment of the above embodiment, a spring 20 is provided in the second extrusion block 21 .

[0044] like Figure 3 As shown, as a preferred embodiment of the above embodiment, the first screw rod 23 is a double-head screw rod structure, which can be set as an integral structure or a separate structure.

[0045] like Figure 1-Figure 3 As shown, as a preferred embodiment of the above embodiment, the infusion tube locking mechanism 9 includes a locking mechanism motor 901, the output end of the locking mechanism motor 901 is connected to the locking mechanism screw 902, and the locking mechanism screw 902 is connected to the locking block 903; the top of the locking block 903 is provided with a bevel portion.

[0046] The puncture robot motor has an additional screw drive mode to squeeze the drip pot to compensate the liquid in the pipeline of the puncture device:

[0047] The first motor 18 is provided with a first screw rod 23 at both the upper and lower ends through the connecting block 25, and the first screw rod 23 at the upper end is responsible for synchronously driving the puncture manipulator 4 to move up and down. The first motor 18 drives the first screw rod 23 to rotate through the rotation, drives the lifting block 19 inserted in the first screw rod 23 to move up and down, and further drives the support block connected to the puncture manipulator 4 to move up and down.

[0048] The first screw rod 23 at the lower end is responsible for synchronously driving the drug liquid compensation mechanism of the drug liquid channel in the puncture device.

[0049] The screw drive block 22 and the second extrusion block 21 are an inclined wedge mechanism, and the vertical movement of the screw drive block 22 is converted into the horizontal movement of the second extrusion block 21, thereby releasing or releasing the drip pot. The vertical movement of the screw drive block 22 is driven by the rotation of the first motor 18 to drive the first screw 23 at the lower end to rotate, and the screw drive block 22 is arranged on the first screw 23, thereby realizing the vertical movement of the screw drive block 22.

[0050] It should be noted that, in this article, the terms include, contain or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used in this article to illustrate the principle and implementation of the technical solution of the present invention. The above examples are only used to help understand the method of the present invention and its core idea. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements, modifications or changes can be made, and the above technical features can also be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A drug liquid compensation mechanism for a drug liquid channel in a puncture device, comprising an infusion bag (1), an infusion bag puncture window (2), a puncture device (3) and a puncture manipulator (4), characterized in that: The tail end of the puncture device (3) is provided with an air column detector (5) in the infusion tube at the tail end of the puncture device, the drip pot part of the puncture device (3) is provided with a liquid level detector (8) in the drip pot, and the lower end of the drip pot part of the puncture device (3) is provided with an infusion tube locking mechanism (9), wherein the puncture device pipeline liquid medicine compensation mechanism is divided into three compensation modes: linear extrusion compensation and crankshaft extrusion mode, puncture motor rotation force extrusion mode, and puncture motor bidirectional transmission liquid level compensation mode; The linear extrusion compensation and crankshaft extrusion modes are respectively arranged on both sides of the drip pot; the linear extrusion compensation is that the output end of the linear motor (12) is connected to the transmission screw (11), the transmission screw (11) is inserted into the vertical plate and connected to the telescopic transmission block (10), and the extrusion portion of the telescopic transmission block (10) is provided with a chamfered portion; the crankshaft extrusion mode is that the output end of the crankshaft motor (6) is connected to the crankshaft (7); The rotational force extrusion method of the puncture motor is extrusion of the extrusion transmission block (16), and the extrusion transmission block (16) and the first extrusion block (15) are an inclined wedge mechanism; the first extrusion block (15) is arranged at the side end of the drip pot; the upper end of the extrusion transmission block (16) is provided with a transmission rod (17), and the transmission rod (17) is connected to the first motor (18) through a connecting block (25), a lifting block (19) and a second screw rod (24); The puncture motor bidirectional transmission liquid level compensation method is that the second extrusion block (21) is extruded, and the second extrusion block (21) and the screw drive block (22) are an inclined wedge mechanism; the screw drive block (22) is arranged at the side end of the drip pot; the screw drive block (22) is inserted into the first screw (23), and the first screw (23) is connected to the output end of the first motor (18) through the connecting block (25).

2. The drug liquid compensation mechanism in the drug liquid channel of the puncture device according to claim 1, characterized in that: When the puncture device pipeline liquid medicine compensation mechanism is a linear extrusion compensation and crankshaft extrusion mode, the puncture robot transmission mechanism is that the output end of the transmission motor (13) is connected to the third screw rod (14) through the transmission assembly, and the third screw rod (14) is connected to the puncture robot (4) through the movable block.

3. The drug liquid compensation mechanism in the drug liquid channel of the puncture device according to claim 1, characterized in that: The middle portion and the upper end of the transmission rod (17) are respectively inserted into the connection block (25) and the lifting block (19); the second screw rod (24) is connected to the output end of the first motor (18) via the connection block (25); and the puncture robot (4) is arranged at the side end of the lifting block (19) via a support block.

4. The drug liquid compensation mechanism in the drug liquid channel of the puncture device according to claim 1, characterized in that: A spring (20) is arranged inside the first extrusion block (15).

5. The drug liquid compensation mechanism in the drug liquid channel of the puncture device according to claim 1, characterized in that: The middle portion of the first screw rod (23) is inserted into the connecting block (25), the upper end of the connecting block (25) is also provided with the first screw rod (23), and the first screw rod (23) at the upper end is arranged in the lifting block (19); the puncture robot (4) is arranged at the side end of the lifting block (19) through the support block.

6. The drug liquid compensation mechanism in the drug liquid channel of the puncture device according to claim 1, characterized in that: A spring (20) is arranged inside the second extrusion block (21).

7. The drug liquid compensation mechanism in the drug liquid channel of the puncture device according to claim 1, characterized in that: The infusion tube locking mechanism (9) comprises a locking mechanism motor (901), the output end of the locking mechanism motor (901) is connected to the locking mechanism screw rod (902), the locking mechanism screw rod (902) is connected to the locking block (903); and a chamfered portion is provided on the top of the locking block (903).

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