Perfusion pump tubing, perfusion device, and surgical system

Abstract

This invention relates to an infusion pump pipeline, an infusion device, and a surgical system. When the pump is operating, it pumps infusion fluid into the infusion pump pipeline, which then delivers the infusion fluid to surgical instruments to complete the corresponding surgical procedure. During the infusion fluid delivery process, if the fluid pressure increases, a deformable diaphragm corresponding to the pressure relief window will undergo radial deformation. This radial deformation of the diaphragm exerts a force on the pressure sensing component. Upon detecting this force, the pressure sensing component can control the start / stop of the pump and the flow rate of the infusion fluid within the pipeline based on the magnitude of this force. This not only prevents injury to the patient due to excessive fluid pressure but also prevents damage to the equipment or seal failure caused by loosening or detachment of the pipeline interfaces. Furthermore, the detection component does not need to be placed within the delivery channel, thus avoiding contamination of the delivered infusion fluid and meeting medical-grade sterility requirements.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an infusion pump pipeline, an infusion device, and a surgical system. Background Technology

[0002] When used in combination with surgical instruments such as endoscopes, plasma surgical electrodes, and shaving handles, the irrigation device can pump liquids such as saline into the surgical instruments through the irrigation pump tubing, thereby enabling surgical operations such as water injection and irrigation. Traditional irrigation devices are prone to excessive pressure in the irrigation pump tubing during surgery, which can cause harm to the patient or damage to the equipment. Summary of the Invention

[0003] Therefore, it is necessary to provide an infusion pump pipeline, infusion device, and surgical system to address the technical problem of excessive pressure in the infusion pump pipeline, which can lead to harm to patients or damage to equipment.

[0004] The technical solution is as follows:

[0005] On the one hand, an injection pump pipeline is provided, including:

[0006] The pipe body has an axially arranged conveying channel and a radially arranged pressure relief window communicating with the conveying channel;

[0007] A deformable membrane, which seals over the pressure relief window and is capable of repositionable deformation along the radial direction of the delivery channel; and

[0008] The pressure measuring component has a pressure measuring notch and a pressure measuring assembly corresponding to the pressure measuring notch; the tube body can pass through the pressure measuring notch and the pressure relief window faces the pressure measuring assembly, so that when the deformable membrane undergoes radial deformation, a force can be applied to the pressure measuring assembly.

[0009] The technical solution will be further explained below:

[0010] In one embodiment, the pipe body includes a first circular pipe segment, a rectangular pipe segment, and a second circular pipe segment. The first circular pipe segment and the second circular pipe segment are connected through the rectangular pipe segment. The rectangular pipe segment is provided with the pressure relief window, and the outline shape of the pressure measuring notch matches the outline shape of the rectangular pipe segment.

[0011] In one embodiment, the pressure measuring component is provided with a mounting groove that communicates with the pressure measuring notch and is radially corresponding to the pressure relief window. The pressure measuring component includes a pressure sensor, which is disposed in the mounting groove. When the deformable membrane deforms radially along the conveying channel, it can apply an abutment force to the pressure sensor.

[0012] In one embodiment, the pressure measuring assembly further includes a support member disposed between the pressure sensor and the deformable membrane, with one side of the support member attached to the deformable membrane and the opposite side of the support member attached to the pressure sensor.

[0013] In one embodiment, the pressure testing notch is provided with a first guide portion on the side wall away from the mounting groove, and the outer side wall of the rectangular tube segment is provided with a second guide portion, with the first guide portion and the second guide portion providing guiding cooperation.

[0014] In one embodiment, the thickness of the deformable membrane is less than the wall thickness of the tube body.

[0015] On the other hand, an infusion device is provided, including a pump body and the infusion pump pipeline. The pump body includes a pump body, a flip cover rotatably connected to the pump body, and a rotating component rotatably disposed on the pump body. When the flip cover is flipped open relative to the pump body, the pipeline can be removed from the pump body. When the flip cover is flipped closed relative to the pump body, the pipeline can be fixed. The rotating component can rotate to cause the pipeline to deform periodically, thereby providing a conveying force for the liquid delivery within the pipeline. The pressure measuring component communicates and cooperates with the pump body to control the start / stop or rotation speed of the rotating component.

[0016] In one embodiment, the infusion device further includes a main unit, the pressure measuring component is connected to and communicates with the main unit, and the main unit is connected to and communicates with the pump body, wherein: the pressure measuring component is used to measure the pressure value of the liquid inside the tube body in real time;

[0017] The host is used to receive the pressure value sent by the pressure measuring component, and send a stop command, deceleration command, start command or acceleration command to the pump body according to the pressure value; the pump body is used to control the rotating component to stop when it receives the stop command sent by the host, or control the rotating component to reduce the rotation speed when it receives the deceleration command sent by the host, or control the rotating component to rotate when it receives the start command sent by the host, or control the rotating component to increase the rotation speed when it receives the acceleration command sent by the host.

[0018] In another aspect, a surgical system is provided, including a surgical device and the aforementioned infusion device, wherein the outlet end of the infusion pump pipeline is connected to the surgical device, and the surgical device is provided with a switching valve, which is used to control the pressure value of the liquid inside the tube.

[0019] In one embodiment, the surgical system further includes a foot pedal controller. The host computer is provided with a communication interface, and the foot pedal controller is connected to the communication interface. The foot pedal controller is used to receive adjustment commands input by the user. The host computer is used to receive the adjustment commands and send the start command, the acceleration command, the stop command, or the deceleration command to the pump body according to the adjustment commands.

[0020] The perfusion pump tubing, perfusion device, and surgical system described in the above embodiments pump the perfusion fluid into the perfusion pump tubing during operation. The perfusion fluid is then delivered to the surgical instruments through the perfusion pump tubing to complete the corresponding surgical procedure. During the perfusion fluid delivery process, if the fluid pressure increases, the deformable membrane corresponding to the pressure relief window will undergo radial deformation. This radial deformation of the membrane exerts a force on the pressure sensing component. Upon detecting this force, the pressure sensing component can control the start / stop of the pump and the flow rate of the perfusion fluid within the tubing based on the magnitude of this force. This not only prevents injury to the patient due to excessive fluid pressure but also prevents damage to the equipment or seal failure caused by loosening or detachment of the tubing interfaces. Furthermore, the detection component does not need to be placed within the delivery channel, thus avoiding contamination of the delivered perfusion fluid and meeting medical-grade sterility requirements. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an infusion device according to one embodiment;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure of the pipe body and the deformable membrane of the injection pump pipeline of the injection device;

[0025] Figure 3 for Figure 1 A schematic diagram of the pressure measuring component of the injection pump pipeline of the injection device;

[0026] Figure 4 for Figure 1 A schematic diagram of the pump body of the priming device;

[0027] Figure 5 for Figure 1 A schematic diagram of the main unit of the infusion device.

[0028] Explanation of reference numerals in the attached figures:

[0029] 10. Pump body; 11. Pump main body; 12. Flip cover; 13. Rotating component; 20. Main unit; 21. Communication interface; 100. Pipe body; 110. First circular pipe section; 120. Rectangular pipe section; 121. Second guide section; 130. Second circular pipe section; 140. Pressure relief window; 200. Deformable membrane; 300. Pressure measuring component; 310. Pressure measuring notch; 320. Pressure measuring assembly; 321. Pressure sensor; 320. Support component; 330. Mounting groove; 340. First guide section. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] like Figures 1 to 3 As shown, in one embodiment, a surgical system is provided, including surgical instruments (not shown) and an infusion device. The infusion device is connected to the surgical instruments, thereby providing the surgical instruments with fluids such as saline solution to facilitate the normal conduct of the surgery. The infusion device can control the hydraulic pressure of the output fluid to be constant or within a preset pressure range, ensuring no harm to the patient or damage to the equipment, and guaranteeing sealing performance.

[0032] In this embodiment, the surgical instrument is equipped with a switching valve, which controls the pressure of the liquid at the front end. After detecting a pressure change at the rear end, the infusion device automatically adjusts the hydraulic pressure of the output liquid. Therefore, this embodiment can also control the output flow rate of the infusion device via the switching valve to meet the actual needs of surgical procedures. The switching valve can be a flow control valve or other device capable of controlling both liquid pressure and flow rate.

[0033] In one embodiment, the surgical device can be an endoscope sheath equipped with a switching valve. This allows the liquid medium supplied to the sheath by the irrigation device to pressurize and expand the patient's internal cavity, creating a visible area. This provides the surgeon with a clear view and clear surgical field, while also cleaning away blood and debris from the cavity. Furthermore, the switching valve can control the delivery and cessation of the liquid flow, as well as the liquid delivery pressure, to meet the actual needs of surgical procedures.

[0034] In other embodiments, the surgical device may also be other surgical instruments with flow control function. For example, the surgical device may also be a planer handle with a flow control valve, which is not limited here.

[0035] like Figure 1 As shown, in one embodiment, an infusion device is provided, including a pump body 10 and an infusion pump line. The pump body 10 provides a conveying force for the liquid transport within the infusion pump line, meaning it can transport the infusion fluid from the inlet end to the outlet end of the infusion pump line. Surgical instruments can be connected to the outlet end of the infusion pump line to input the infusion fluid.

[0036] like Figures 1 to 3 As shown, in one embodiment, an injection pump pipeline is provided, including a pipe body 100, a deformable diaphragm 200, and a pressure measuring component 300.

[0037] like Figure 1 and Figure 4 As shown, the pump body 10 includes a pump body 11, a flip cover 12 rotatably connected to the pump body 11, and a rotating member 13 rotatably disposed on the pump body 11. When the flip cover 12 is flipped open relative to the pump body 11, the tube body 100 can be removed from the pump body 11. When the flip cover 12 is flipped closed relative to the pump body 11, it can fix the tube body 100, preventing displacement or movement of the tube body 100 relative to the pump body 10 during liquid transportation. The rotating member 13 can rotate to cause the tube body 100 to deform periodically, thereby providing a transportation force for the liquid transportation within the tube body 100, that is, to transport the injection fluid from the inlet end to the outlet end of the tube body 100. Moreover, the pressure measuring component 300 communicates and cooperates with the pump body 10 to control the start, stop, or rotation speed of the rotating member 13, thereby controlling not only whether the injection fluid is transported, but also the transportation flow rate of the injection fluid.

[0038] The rotating component 13 can be in the form of a roller.

[0039] When the rotating member 13 rotates, it causes the injection fluid to flow and be delivered into the tube body 100; when the rotating member 13 stops, the injection fluid in the tube body 100 stops flowing. Furthermore, the faster the rotating member 13 rotates, the faster the flow rate of the injection fluid in the tube body 100.

[0040] Optionally, the switching valve is used to control the pressure value of the liquid in the pipe body 100, that is, to control the opening and closing of the pipe body 100, or to control the flow rate of the liquid in the pipe body 100.

[0041] The pump body 10 can be a peristaltic pump or the like, as long as it can deliver the injection fluid from the inlet end to the outlet end of the injection pump pipeline.

[0042] The pump body 10 can be electrically connected to the surgical device, thereby enabling the pump body 10 and the surgical device to start and stop synchronously.

[0043] The tube body 100 has an axially arranged delivery channel and a radially arranged pressure relief window 140 communicating with the delivery channel. Infusion fluids such as physiological saline can be delivered through the delivery channel.

[0044] The deformable membrane 200 seals over the pressure relief window 140. Furthermore, the deformable membrane 200 is capable of radially repositionable deformation along the conveying channel; that is, the deformable membrane 200 can undergo radially repositionable deformation in response to pressure changes within the conveying channel. For example, when the hydraulic pressure within the conveying channel increases, the radial deformation of the deformable membrane 200 increases; when the hydraulic pressure within the conveying channel decreases, the radial deformation of the deformable membrane 200 decreases or returns to its original position.

[0045] Alternatively, the deformable membrane 200 may be made of a material capable of sending elastic deformation and being able to return to its original position.

[0046] It should be noted that the deformable membrane 200 seals and covers the pressure relief window 140. This can be because the entire deformable membrane 200 seals and covers the pressure relief window 140, meaning the outline of the deformable membrane 200 matches the outline of the pressure relief window 140. Alternatively, the deformable membrane 200 can partially seal and cover the entire pressure relief window 140, meaning the surface area of ​​the deformable membrane 200 is larger than the opening size of the pressure relief window 140.

[0047] The pressure measuring component 300 is provided with a pressure measuring notch 310 and a pressure measuring assembly 320 corresponding to the pressure measuring notch 310. Furthermore, the pressure measuring component 300 communicates and cooperates with the pump body 10 to control the start and stop of the pump body 10.

[0048] The pump body 10 can communicate and cooperate with the rotating component 13 to control the start, stop or speed of the rotating component 13.

[0049] The pressure testing component 300 can be in the form of a mounting base, which can be provided with a C-shaped pressure testing notch 310 to facilitate the insertion of the pipe body 100 into the opening of the pressure testing notch 310.

[0050] The tube body 100 can be inserted into the pressure measuring notch 310 and the pressure relief window 140 can be oriented toward the pressure measuring component 320, so that when the deformable membrane 200 undergoes radial deformation, it can apply a force to the pressure measuring component 320, that is, when the deformable membrane 200 undergoes radial deformation under the action of hydraulic pressure, it can apply a radial resistance force to the pressure measuring component 320.

[0051] The tube body 100 can pass through the pressure testing notch 310 and be assembled with the pressure testing component 300 by means of snap-fit ​​or clamping. After the tube body 100 and the pressure testing component 300 are assembled, the pressure relief window 140 faces the pressure testing assembly 320. For example, when the pressure testing assembly 320 is located on the lower side wall of the pressure testing notch 310, the pressure relief window 140 faces downward; when the pressure testing assembly 320 is located on the upper side wall of the pressure testing notch 310, the pressure relief window 140 faces upward. It is sufficient that when the hydraulic pressure in the delivery channel increases, causing the deformable membrane 200 to deform radially, the radially deformed deformable membrane 200 can exert a force on the pressure testing assembly 320, thereby enabling the pressure testing assembly 320 to detect this force. Furthermore, after detecting this force, the pressure testing assembly 320 can control the start and stop of the pump body 10 according to the magnitude of the force.

[0052] Optionally, if the pressure measuring component 320 detects that the force exceeds the first preset value, it indicates that the hydraulic pressure inside the tube body 100 is too high. The pressure measuring component 300 can trigger a corresponding stop command to the pump body 10, causing the rotating component 13 to stop working. This not only avoids injury to the patient due to excessive hydraulic pressure but also prevents damage to the equipment or seal failure caused by loosening or detachment of the tubing interface. If the pressure measuring component 320 detects that the force is lower than the second preset value, it indicates that the hydraulic pressure inside the tube body 100 is too low. The pressure measuring component 300 can trigger a corresponding start command to the pump body 10, causing the rotating component 13 to start working, ensuring the normal progress of the surgery. Generally, the second preset value is less than the first preset value. Within the range between the first and second preset values, the pressure measuring component 300 can also trigger a corresponding deceleration or acceleration command, causing the pump body 10 to control the rotation speed of the rotating component 13 to decrease or increase, maintaining the optimal hydraulic state. Of course, in special cases, the second preset value can also be equal to the first preset value, and can be flexibly adjusted or designed according to the actual situation.

[0053] Optionally, the pressure measuring component 320 may be a component such as a load cell that can detect the applied force.

[0054] In the infusion pump tubing of the above embodiment, when the pump body 10 is working, it pumps the infusion fluid into the infusion pump tubing, and then delivers the infusion fluid to the surgical instruments to complete the corresponding surgical operation. During the delivery of the infusion fluid, if the fluid pressure increases, the deformable membrane 200 corresponding to the pressure relief window 140 will undergo radial deformation. The deformable membrane 200 exerts a force on the pressure measuring component 320 due to the radial deformation. After detecting this force, the pressure measuring component 320 can control the start and stop of the pump body 10 and the flow rate of the infusion fluid in the tubing body 100 according to the magnitude of the force. This not only avoids harm to the patient due to excessive fluid pressure, but also prevents damage to the equipment or failure of the seal due to loosening or detachment of the tubing interface. At the same time, it is not necessary to place the detection component in the delivery channel, which can avoid contamination of the delivered infusion fluid and meet the requirements of medical-grade sterility.

[0055] like Figure 1 As shown, in one embodiment, the infusion device further includes a main unit 20. The pressure measuring component 300 is connected to and communicates with the main unit 20; that is, the pressure measuring component 300 can be installed on the main unit 20 by snap-fit, plug-in, or screw-in and moves with the main unit 20, facilitating use and saving space. The main unit 20 is connected to and communicates with the pump body 10; that is, the pump body 10 can be installed on the main unit 20 by snap-fit, plug-in, or screw-in and moves with the main unit 20, facilitating use and saving space. Thus, the pump body 10 and the pressure measuring component 300 are both installed on the main unit 20, forming a highly integrated assembly. The pump body 10 provides driving force for the delivery of infusion fluid within the tube body 100, and the pressure measuring notch 310 provides initial installation positioning for the tube body 100, preventing tangling or tripping due to messy piping. Moreover, after the pressure measuring component 320 detects the force applied to the deformable membrane 200, it transmits the corresponding signal to the host 20. The host 20 processes the signal to control the start and stop of the pump body 10. This not only avoids harm to the patient due to excessive hydraulic pressure, but also prevents damage to the equipment or failure of the seal due to loose or detached pipeline interfaces.

[0056] The pressure measuring component 300 is used to measure the pressure value of the liquid inside the tube body 100 in real time. The host 20 is used to receive the pressure value sent by the pressure measuring component 300 and send a stop command, deceleration command, start command, or acceleration command to the pump body 10 according to the pressure value. Optionally, if the pressure value exceeds a preset threshold, a stop command or deceleration command is sent to the pump body 10; if the pressure value is less than the preset threshold, a start command or acceleration command is sent to the pump body 10. The pump body 10 is used to control the rotating component 13 to stop when it receives a stop command from the host 20, so that the injection liquid inside the tube body 100 stops flowing; or to control the rotating component 13 to reduce its rotation speed when it receives a deceleration command from the host 20, so that the injection liquid inside the tube body 100 flows slower; or to control the rotating component 13 to rotate when it receives a start command from the host 20, so that the injection liquid flows and is transported inside the tube body 100; or to control the rotating component 13 to increase its rotation speed when it receives an acceleration command from the host 20, so that the injection liquid inside the tube body 100 flows faster. In this way, the start and stop of the pump body 10 and the flow rate of the infusion fluid in the tube body 100 can be controlled according to the pressure value. This not only avoids harm to the patient due to excessive fluid pressure, but also prevents damage to the equipment or failure of the seal due to loose or detached tubing interfaces.

[0057] Communication can be achieved through wired connections or wireless communication.

[0058] The host 20 can use existing components or devices, which will not be described or enumerated here.

[0059] like Figure 5 As shown, in one embodiment, the surgical system further includes a foot pedal controller (not shown), and the main unit 20 is provided with a communication interface 21, through which the foot pedal controller is connected. The foot pedal controller receives adjustment commands input by the user; the main unit 20 receives the adjustment commands and sends start, acceleration, stop, or deceleration commands to the pump body 10 according to the adjustment commands. Thus, the foot pedal controller can work synchronously with the infusion device. When the foot pedal controller is activated, the infusion device can be activated synchronously to provide the corresponding liquid environment for the surgical instruments; when the foot pedal controller is stopped, the infusion device can be stopped synchronously. The foot pedal controller can also control the flow rate of the infusion fluid.

[0060] It should be noted that the communication interface 21 can be a wired interface or a wireless interface; this embodiment does not limit it.

[0061] In one embodiment, the foot pedal controller can be a foot pedal control component of a plasma surgical device, which communicates with the host 20 via communication interface 21.

[0062] like Figure 1 and Figure 2 As shown, in one embodiment, the pipe body 100 includes a first circular pipe section 110, a rectangular pipe section 120, and a second circular pipe section 130. The first circular pipe section 110 and the second circular pipe section 130 are connected through the rectangular pipe section 120, that is, the rectangular pipe section 120 is disposed between the first circular pipe section 110 and the second circular pipe section 130. The injection fluid flows from the first circular pipe section 110 into the rectangular pipe section 120, and then flows out from the rectangular pipe section 120 into the second circular pipe section 130. The rectangular pipe section 120 is provided with a pressure relief window 140, and the contour shape of the pressure measuring notch 310 matches the contour shape of the rectangular pipe section 120. On the one hand, through a segmented design, the pressure relief window 140 is arranged on the rectangular pipe section 120, and the outline shape of the pressure measuring notch 310 matches the outline shape of the rectangular pipe section 120. This facilitates stable and reliable installation and fixation of the pipe body 100 and the pressure measuring notch 310, avoiding the problem of inaccurate detection by the pressure measuring component 320 caused by the movement of the pipe body 100 relative to the pressure measuring notch 310 due to the impact caused by the liquid flow in the delivery channel. On the other hand, arranging the pressure relief window 140 on the rectangular pipe section 120 and matching the outline shape of the pressure measuring notch 310 with the outline shape of the rectangular pipe section 120 facilitates the conversion of the hydraulic pressure change of the injection fluid into the radial deformation of the deformable membrane 200, thereby applying a radial force to the pressure measuring component 320. This ensures that the force detected by the pressure measuring component 320 can accurately reflect the hydraulic pressure change in the delivery channel. Furthermore, compared to the traditional design that uses a circular tube for the entire length, the segmented design and rectangular tube segment 120 design of this embodiment facilitate the conversion of radial force in the circumferential direction into radial force in a single direction, which acts on the pressure measuring component 320. This ensures the detection accuracy and precision of the pressure measuring component 320, enabling it to accurately reflect changes in hydraulic pressure within the delivery channel. Additionally, the contour shape of the pressure measuring notch 310 matches the contour shape of the rectangular tube segment 120, allowing the rectangular tube segment 120 to fit flush with the inner wall of the pressure measuring notch 310. This facilitates the application of radial force in a single direction (e.g., upward or downward) to the pressure measuring component 320, ensuring the detection accuracy and precision of the pressure measuring component 320, and enabling it to accurately reflect changes in hydraulic pressure within the delivery channel.

[0063] The first circular pipe section 110 and the second circular pipe section 130 can be made of soft material, i.e., flexible tubing.

[0064] Among them, the rectangular tube segment 120 can be made of rigid material, i.e., a rigid tube.

[0065] like Figure 2 and Figure 3As shown, in one embodiment, the pressure measuring component 300 is provided with a mounting groove 330 that communicates with the pressure measuring notch 310 and is radially corresponding to the pressure relief window 140. The pressure measuring assembly 320 includes a pressure sensor 321, which is disposed within the mounting groove 330. Furthermore, when the deformable membrane 200 deforms radially along the conveying channel, it can apply a resisting force to the pressure sensor 321. Thus, by mounting and fixing the pressure sensor 321 through the mounting groove 330, the problem of inaccurate detection caused by the pressure sensor 321 shaking is avoided. The mounting groove 330 and the pressure relief window 140 are radially corresponding to each other. When the deformable membrane 200 deforms radially, it can contact the pressure sensor 321 and apply a resisting force to the pressure sensor 321, enabling the pressure sensor 321 to accurately detect changes in hydraulic pressure within the conveying channel.

[0066] The contour shape of the mounting groove 330 can be matched with the contour shape of the pressure sensor 321.

[0067] like Figure 3 As shown, in one embodiment, the pressure measuring assembly 320 further includes a support member 320. The support member 320 is disposed between the pressure sensor 321 and the deformable diaphragm 200. One side of the support member 320 is in contact with the deformable diaphragm 200, and the opposite side of the support member 320 is in contact with the pressure sensor 321. Thus, when the deformable diaphragm 200 undergoes radial deformation, the force is first transmitted to the support member 320, and then transmitted to the pressure sensor 321 through the support member 320. This increases the contact area with the deformable diaphragm 200 and ensures the detection accuracy of the pressure sensor 321.

[0068] Among them, the support component 320 can be a structure such as a pallet or a support platform.

[0069] like Figure 2 and Figure 3 As shown, in one embodiment, the pressure measuring notch 310 has a first guide portion 340 on its sidewall opposite to the mounting groove 330, and the outer sidewall of the rectangular tube segment 120 has a second guide portion 121. The first guide portion 340 and the second guide portion 121 are guided and engaged. Thus, through the guiding engagement between the first guide portion 340 and the second guide portion 121, the assembly accuracy and efficiency of the rectangular tube segment 120 and the pressure measuring component 300 can be improved, ensuring accurate radial correspondence between the pressure relief window 140 and the mounting groove 330, ensuring that the force exerted when the deformable membrane 200 undergoes radial deformation can be accurately transmitted to the pressure sensor 321, and ensuring the detection accuracy of the pressure sensor 321.

[0070] The guiding fit between the first guide portion 340 and the second guide portion 121 can be achieved by a concave-convex fit, for example, the guiding fit between the guide protrusion and the guide groove.

[0071] like Figure 2 As shown, in one embodiment, the thickness of the deformable membrane 200 is less than the wall thickness of the tube body 100. Thus, even with small changes in the hydraulic pressure within the delivery channel, the deformable membrane 200 can deform accordingly and apply a force to the pressure sensing component 320. This allows the pressure sensing component 320 to accurately detect changes in hydraulic pressure within the delivery channel, thereby accurately controlling the start and stop of the pump 10. This not only prevents harm to the patient due to excessive hydraulic pressure but also prevents damage to the equipment or seal failure caused by loosening or detachment of the tubing interfaces. Furthermore, since the thickness of the deformable membrane 200 is less than the wall thickness of any part of the tube body 100, when the hydraulic pressure within the delivery channel changes, the deformable membrane 200 can be the first to rapidly deform radially and apply a force to the pressure sensing component 320.

[0072] Both film thickness and wall thickness refer to the thickness in the radial direction.

[0073] It should be noted that "a certain body" or "a certain part" can be a portion of the corresponding "component," meaning that "a certain body" or "a certain part" is integrally formed and manufactured with the "other parts of the component"; or it can be an independent component that can be separated from the "other parts of the component," meaning that "a certain body" or "a certain part" can be manufactured independently and then combined with the "other parts of the component" to form a whole. The expression of "a certain body" or "a certain part" in this application is only one embodiment for ease of reading, and is not intended to limit the scope of protection of this application. Any technical solution that includes the above features and has the same function should be understood as an equivalent technical solution of this application.

[0074] It should be noted that the components included in the terms "unit," "component," "mechanism," and "device" of this application can be flexibly combined, enabling modular production according to actual needs and facilitating modular assembly. The division of the above-mentioned components in this application is merely one embodiment for ease of reading and is not intended to limit the scope of protection of this application. Any solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this application.

[0075] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. The term "and / or" used in this invention includes any and all combinations of one or more of the related listed items.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0077] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0078] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0079] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixed transmission connection" to another component, the two can be fixed in a detachable or non-detachable manner, as long as power transmission can be achieved, such as sleeve, snap-fit, integral molding, welding, etc., which can be achieved in the prior art and will not be elaborated here. When a component is perpendicular or approximately perpendicular to another component, it means that the two are ideally perpendicular, but due to the influence of manufacturing and assembly, there may be a certain degree of perpendicularity error. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0080] It should also be understood that, in interpreting the connection or positional relationships of components, although not explicitly described, connection and positional relationships are interpreted to include a range of error, which should be within the acceptable deviation range of a specific value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0081] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A perfusion pump tubing, characterized by, include: The pipe body has an axially arranged conveying channel and a radially arranged pressure relief window communicating with the conveying channel; A deformable membrane, which seals over the pressure relief window and is capable of repositionable deformation along the radial direction of the delivery channel; and The pressure measuring component has a pressure measuring notch and a pressure measuring assembly corresponding to the pressure measuring notch; the tube body can pass through the pressure measuring notch and the pressure relief window faces the pressure measuring assembly, so that when the deformable membrane undergoes radial deformation, a force can be applied to the pressure measuring assembly.

2. The perfusion pump tubing of claim 1, wherein, The pipe body includes a first circular pipe segment, a rectangular pipe segment, and a second circular pipe segment. The first circular pipe segment and the second circular pipe segment are connected through the rectangular pipe segment. The rectangular pipe segment is provided with the pressure relief window, and the outline shape of the pressure measuring notch matches the outline shape of the rectangular pipe segment.

3. The injection pump pipeline according to claim 2, characterized in that, The pressure measuring component is provided with a mounting groove that communicates with the pressure measuring notch and is radially corresponding to the pressure relief window. The pressure measuring component includes a pressure measuring sensor, which is disposed in the mounting groove. When the deformable membrane deforms radially along the conveying channel, it can apply an abutting force to the pressure measuring sensor.

4. The injection pump pipeline according to claim 3, characterized in that, The pressure measuring assembly also includes a support member disposed between the pressure sensor and the deformable membrane. One side of the support member is attached to the deformable membrane, and the opposite side of the support member is attached to the pressure sensor.

5. The injection pump pipeline according to claim 3, characterized in that, The pressure testing notch is provided with a first guide portion on the side wall away from the mounting groove, and the outer side wall of the rectangular tube section is provided with a second guide portion, with the first guide portion and the second guide portion providing guiding cooperation.

6. The injection pump pipeline according to any one of claims 1 to 5, characterized in that, The thickness of the deformable membrane is less than the wall thickness of the tube body.

7. An injection device, characterized in that, The system includes a pump body and a filling pump pipeline as described in any one of claims 1 to 6. The pump body includes a pump body, a flip cover rotatably connected to the pump body, and a rotating component rotatably disposed on the pump body. When the flip cover is flipped open relative to the pump body, the tubing body can be removed from the pump body. When the flip cover is flipped closed relative to the pump body, the tubing body can be fixed. The rotating component can rotate to cause the tubing body to deform periodically, thereby providing a conveying force for the liquid delivery within the tubing body. The pressure measuring component communicates and cooperates with the pump body to control the start / stop or rotation speed of the rotating component.

8. The infusion apparatus according to claim 7, characterized in that, The infusion device further includes a main unit, the pressure measuring component is connected to and communicates with the main unit, and the main unit is connected to and communicates with the pump body, wherein: The pressure measuring component is used to measure the pressure value of the liquid inside the tube in real time. The host is used to receive the pressure value sent by the pressure measuring component, and send a stop command, deceleration command, start command or acceleration command to the pump body according to the pressure value; The pump body is used to control the rotating component to stop when it receives a stop command sent by the host, or to control the rotating component to reduce its rotation speed when it receives a deceleration command sent by the host, or to control the rotating component to rotate when it receives a start command sent by the host, or to control the rotating component to increase its rotation speed when it receives an acceleration command sent by the host.

9. A surgical system, characterized in that, The device includes a surgical instrument and an infusion apparatus as described in claim 8, wherein the outlet end of the infusion pump pipeline is connected to the surgical instrument, and the surgical instrument is provided with a switching valve for controlling the pressure value of the liquid inside the tube.

10. The surgical system according to claim 9, characterized in that, The surgical system also includes a foot pedal controller. The main unit is equipped with a communication interface, and the foot pedal controller is connected to the communication interface, wherein: The foot pedal controller is used to receive adjustment commands input by the user's pedal input; The host is used to receive the adjustment command and send the start command, the acceleration command, the stop command, or the deceleration command to the pump body according to the adjustment command.

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