A fallopian tube diagnosis and dredging device

Abstract

The present invention provides a fallopian tube diagnosis and dredging device, comprising an outer sheath, an inner catheter movably arranged in the outer sheath, a pressure sensing guide wire movably arranged in the inner catheter, a pressure sensor fixed at the distal end of the pressure sensing guide wire, a liquid passage tube, a flow pump installed on the liquid passage tube, a state indication panel and a controller, wherein the distal end of the outer sheath has a sealing fixed section and a distal through hole, the inner catheter has a liquid passage cavity connected to the liquid passage tube, and a first liquid passage hole opened on the distal end surface of the inner catheter and connected to the liquid passage cavity, and the pressure sensing guide wire has a guide wire head end distributed on the distal side of the pressure sensor; when the inner catheter and the guide wire head end are both located in the outer sheath, the first liquid passage hole is connected to the distal through hole. The operator finds the best insertion angle according to the pressure value fed back by the pressure sensor displayed on the state indication panel to avoid damaging the fallopian tube; the state of the fallopian tube is accurately determined according to the controller obtaining the liquid flow fed back by the flow pump and the liquid pressure fed back by the pressure sensor.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a fallopian tube diagnosis and dredging device. Background Art

[0002] The process of tubal perfusion is to inject methylene blue solution or saline solution into the uterine cavity from the cervix, and then flow into the fallopian tube from the uterine cavity. The resistance during the injection of the liquid and the reflux of the liquid are used to determine whether the fallopian tube is unobstructed. At present, when using a clinical tubal perfusion device, the uterine perfusion catheter is usually inserted into the cervical canal according to the probe detection direction, fixed at a pre-selected depth, and then the solution is slowly pushed into the liquid; if the liquid is injected smoothly, there is no resistance, no leakage outside the cervix, and the patient has no obvious discomfort, indicating that the fallopian tube is unobstructed; if there is resistance, a little pressure is applied, and the patient has a little abdominal discomfort, the injection can be smoothly performed, indicating that the fallopian tube is unobstructed; when the resistance is large, the liquid overflows from the external opening of the cervix, and the abdominal distension is unbearable, which is mostly due to the complete obstruction of the fallopian tube. In addition, when the liquid is passed, the sound of liquid coming out of the umbrella end of the fallopian tube can be heard by the stethoscope on both sides of the lower abdomen.

[0003] In summary, the amount of pressure in front during the fluid infusion is completely determined by the operator's own experience. This method places extremely high demands on the operator, is prone to misdiagnosis, and may also cause the risk of tubal rupture. In addition, with the advancement of fluid infusion materials and technology in recent years, the fluid infusion tube can directly reach the uterine end of one side of the fallopian tube under the guidance of a guide wire. In addition to checking whether the fallopian tube is unobstructed, it can also perform tubal fluid infusion treatment for those with mild adhesions. However, this makes it more difficult to judge whether the fallopian tube is unobstructed and reduces the accuracy of tubal diagnosis. Medical accidents are prone to occur if the doctor's experience and touch are used alone. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a fallopian tube diagnosis and unblocking device, which can effectively improve the accuracy of fallopian tube diagnosis and effectively prevent damage to the fallopian tube.

[0005] To achieve the above-mentioned purpose, the present invention provides a fallopian tube diagnosis and dredging device, comprising an outer sheath, an inner catheter movably inserted into the outer sheath, a pressure sensing guide wire movably inserted into the inner catheter, a pressure sensor fixed at the distal end of the pressure sensing guide wire, a liquid passage tube for introducing a liquid medicine, a flow pump installed on the liquid passage tube, a status indication panel, and a controller, wherein the distal end of the outer sheath has a shrinkable and swellable sealing fixed section, and a distal through hole opened on the distal end surface of the outer sheath, the inner catheter has a liquid passage cavity communicated with the liquid passage tube, and a first liquid passage hole opened on the distal end surface of the inner catheter and communicated with the liquid passage cavity, and the pressure sensing guide wire has a guide wire head end distributed on the distal end side of the pressure sensor; the pressure sensor, the flow pump and the status indication panel are all connected to the controller for communication;

[0006] When the distal end of the inner catheter and the guide wire tip are both located in the outer sheath, the first liquid through hole is communicated with the distal through hole.

[0007] Furthermore, the distal end of the inner catheter is provided with a plurality of second liquid-passing holes distributed on the outer peripheral side of the liquid-passing cavity, and the liquid-passing cavity and the outside of the inner catheter are communicated through the second liquid-passing holes.

[0008] Further, the sealing and fixing section includes a fold portion, an airbag portion distributed on the proximal side of the fold portion, and a blocking portion separated between the fold portion and the airbag portion, and the distal end of the fold portion extends to the distal end of the outer sheath;

[0009] When the distal end of the inner catheter is retracted in the outer sheath, the folded portion is distributed on the outer peripheral side of the distal end of the inner catheter, the inner peripheral cavity of the folded portion is connected to the second liquid hole, and the distal end of the folded portion is sealed and matched with the distal end of the inner catheter.

[0010] Furthermore, the fallopian tube diagnostic dredging device also includes a ventilation tube for introducing gas, and a solenoid valve, a pressure regulating valve and a pressure gauge installed in series on the ventilation tube. A ventilation cavity is opened in the outer sheath, and the proximal and distal ends of the ventilation cavity are respectively connected to the ventilation tube and the airbag part, and the solenoid valve and the pressure gauge are both communicatively connected to the controller.

[0011] Furthermore, the folded portion is tapered, and the outer diameter of the folded portion gradually decreases from the proximal end to the distal end.

[0012] Furthermore, a cross groove is provided on the distal end surface of the folded portion, and the cross groove is communicated with the distal through hole.

[0013] Furthermore, a first sealing cone surface is provided on the inner circumferential surface of the distal end of the fold portion, and a second sealing cone surface is provided on the outer circumferential surface of the distal end of the inner catheter; when the distal end of the inner catheter is retracted in the outer sheath, the first sealing cone surface and the second sealing cone surface are in surface contact and fit.

[0014] Furthermore, the inner catheter is an inner and outer double-layer structure, including an inner tube body and an outer tube body surrounding the inner tube body, the proximal end of the inner tube body and the proximal end of the outer tube body are fixed, the annular cavity between the inner tube body and the outer tube body constitutes the liquid cavity, the first liquid hole is opened on the distal end face of the inner tube body and the distal end face of the outer tube body, the second liquid hole is opened on the distal tube wall of the outer tube body, and the pressure sensing guide wire is movably passed through the inner tube body.

[0015] Furthermore, the inner tube body and the outer tube body are both bendable curved tubes.

[0016] Furthermore, the inner tube body and the outer tube body are both metal tubes, and the inner and outer circumferential surfaces of the metal tubes are both covered with a sealing insulation layer; and the pressure sensing guide wire is a metal wire.

[0017] Furthermore, the distal end surface of the guide wire tip is a smooth round surface.

[0018] Furthermore, the fallopian tube diagnosis and dredging device also includes an operating handle provided with a plurality of operating buttons, and the operating handle is communicatively connected with the controller.

[0019] Furthermore, the fallopian tube diagnostic and dredging device also includes a first drive unit that is transmission-connected to the proximal end of the inner catheter, and a second drive unit that is transmission-connected to the proximal end of the pressure sensing guide wire, the first drive unit drives the inner catheter to rotate and move axially, the second drive unit drives the pressure sensing guide wire to rotate and move axially, and the drive source in the first drive unit and the drive source in the second drive unit are both communication-connected to the controller.

[0020] As described above, the fallopian tube diagnosis and dredging device according to the present invention has the following beneficial effects:

[0021] The fallopian tube diagnostic and dredging device involved in the present application is used to diagnose whether the fallopian tube is unobstructed, and to dredge the fallopian tube when the fallopian tube is blocked. When the fallopian tube diagnostic and dredging device is inserted into the fallopian tube, the guide wire head end is always located outside the outer sheath and the inner catheter, and the reaction force can be transmitted to the pressure sensor. The operator finds the best insertion angle according to the pressure value fed back by the pressure sensor displayed on the status indicator panel, so as to prevent the operator from inserting the fallopian tube violently due to lack of experience and causing damage to the fallopian tube; and, during the diagnosis process, the operation of the flow pump is controlled to pass liquid into the fallopian tube through the liquid passing tube, the liquid passing cavity and the first liquid passing hole of the inner catheter, and the distal through hole of the outer sheath in turn, and the controller obtains the liquid passing flow fed back by the flow pump and the liquid pressure fed back by the pressure sensor. According to these two data, the patency of the fallopian tube can be accurately judged, and the accuracy of fallopian tube diagnosis can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the fallopian tube diagnostic and dredging device in this application.

[0023] Figure 2 Schematic diagram of the connection between the outer sheath, inner catheter and pressure sensing guidewire in this application.

[0024] Figure 3 for Figure 2 Enlarged view of circle A.

[0025] Figure 4 It is a schematic diagram of the structure of the outer sheath in this application.

[0026] Figure 5 for Figure 4 Enlarged view of circle B.

[0027] Figure 6 for Figure 4 Half section view.

[0028] Figure 7 for Figure 6 Enlarged view of circle C.

[0029] Figure 8 It is a schematic diagram of the structure of the inner catheter in this application.

[0030] Fig. 9 for Figure 8 Enlarged view of circle D.

[0031] Fig.10 for Figure 8 main view.

[0032] Fig.11 for Figure 8 Half section view.

[0033] Fig.12 for Fig.11 Enlarged view of circle E.

[0034] Fig.13 This is a schematic diagram of the structure of the pressure sensing guide wire in this application.

[0035] Fig.14 for Fig.13 Enlarged view of circle F.

[0036] Figures 15 to 17 This is a diagram of the operation process of the fallopian tube diagnostic and dredging device in this application for diagnosing the patency of the fallopian tube.

[0037] Figures 18a to 18d It is a curve diagram showing the relationship between liquid flow rate n and liquid pressure P.

[0038] Fig.19 This is a schematic diagram of the state of the fallopian tube diagnostic and unblocking device in the present application when being used to unblock the fallopian tube.

[0039] Fig. 20 This is a curve diagram showing the relationship between the moving distance L and the liquid pressure P corresponding to the inner catheter and the pressure sensing guide wire passing through the obstacle when clearing the fallopian tube.

[0040] Fig.21 This is a second schematic diagram of the state of the fallopian tube diagnostic and unblocking device in the present application when being used to unblock the fallopian tube.

[0041] Fig. 22 This is a curve diagram showing the relationship between the moving distance L and the liquid pressure P during the process of clearing the fallopian tube.

[0042] Fig.23 Schematic diagram of the relationship between the inner catheter, pressure sensing guide wire and fallopian tube during the process of clearing the fallopian tube.

[0043] Component number description

[0044] 10 Controller

[0045] 20 Outer sheath

[0046] 21 Sealing fixed section

[0047] 211 Folds

[0048] 212 Airbag Department

[0049] 213 Blocking Department

[0050] 22 Far end through hole

[0051] 23 Ventilation cavity

[0052] 24 Cross slot

[0053] 25 First sealing cone

[0054] 26 Ventilation pipe section

[0055] 30 Inner catheter

[0056] 31 Liquid passage cavity

[0057] 32 First liquid hole

[0058] 33 Second liquid hole

[0059] 34 First sealing cone

[0060] 35 Inner tube body

[0061] 36 Outer tube body

[0062] 37 Liquid pipe section

[0063] 40 Pressure Sensing Guidewire

[0064] 41 Guidewire Tip

[0065] 42 Smooth round surface

[0066] 50 Pressure Sensor

[0067] 60 Liquid pipe

[0068] 70 flow pump

[0069] 80 Status indicator panel

[0070] 90 Ventilation pipe

[0071] 110 Solenoid valve

[0072] 120 Pressure regulating valve

[0073] 130 Pressure gauge

[0074] 140 Operating handle

[0075] 150 First drive unit

[0076] 160 Second drive unit

[0077] 170 External air source

[0078] 180 Liquid Source

[0079] 190 Data Interface DETAILED DESCRIPTION

[0080] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0081] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0082] The present application provides a fallopian tube diagnosis and dredging device, which is used to diagnose the patency of the fallopian tube and dredge the fallopian tube when the fallopian tube is blocked. For ease of description, in the following embodiments, the end of the fallopian tube diagnosis and dredging device close to the operator is defined as the proximal end, and the end of the fallopian tube diagnosis and dredging device away from the operator is defined as the distal end; the operator is usually a doctor.

[0083] like Figures 1 to 3As shown, the fallopian tube diagnostic dredging device involved in the present application includes an outer sheath 20, an inner catheter 30, a pressure sensing guide wire 40, a pressure sensor 50 fixed at the distal end of the pressure sensing guide wire 40, a liquid passage 60 for introducing a liquid medicine, a flow pump 70 installed on the liquid passage 60, a status indication panel 80, and a controller 10; wherein the outer sheath 20, the inner catheter 30 and the pressure sensing guide wire 40 all extend axially from the proximal end to the distal end, the inner catheter 30 can be axially movably arranged in the outer sheath 20, and the pressure sensing guide wire 40 can be axially movably arranged in the inner catheter 30; the distal end of the outer sheath 20 It has a shrinkable sealing and fixing section 21, and a distal through hole 22 opened on the distal end surface of the outer sheath 20. The outer sheath 20 can be fixed to the fallopian tube orifice and sealed with the fallopian tube orifice by the expansion of the sealing and fixing section 21; the inner catheter 30 has a liquid passage cavity 31 connected to the liquid passage tube 60, and a first liquid passage hole 32 opened on the distal end surface of the inner catheter 30 and connected to the liquid passage cavity 31; the pressure sensing guide wire 40 has a guide wire head end 41 distributed on the distal side of the pressure sensor 50; the pressure sensor 50, the flow pump 70 and the status indication panel 80 are all connected to the controller 10 for communication.

[0084] In the above-mentioned fallopian tube diagnosis and dredging device, by controlling the axial movement of the inner catheter 30 in the outer sheath 20, the distal end of the inner catheter 30 can be retracted in the outer sheath 20, or extended from the distal through hole 22 of the outer sheath 20 to the outside of the outer sheath 20; by controlling the axial movement of the pressure sensing guide wire 40 in the inner catheter 30, the guide wire tip 41 at the distal end of the pressure sensing guide wire 40 can be retracted in the inner catheter 30, or extended from the first liquid hole 32 of the inner catheter 30 and the distal through hole 22 of the outer sheath 20 to the outside of the outer sheath 20 in sequence. When the distal end of the inner catheter 30 is retracted in the outer sheath 20, and the guide wire tip 41 is retracted in the inner catheter 30, that is, the distal end of the inner catheter 30 and the guide wire tip 41 are both located in the outer sheath 20, at this time, as Fig.17 As shown, the first liquid through hole 32 at the distal end of the inner catheter 30 and the distal through hole 22 at the distal end of the outer sheath 20 are aligned and connected.

[0085] The fallopian tube diagnostic and unblocking device involved in the present application is used for diagnosing the patency of the fallopian tubes and unblocking the fallopian tubes with the aid of a hysteroscope and is used under a hysteroscope. During this process, the outer sheath 20 is inserted into the mechanical channel of the hysteroscope.

[0086] The operation of the fallopian tube diagnostic dredging device for diagnosing the patency of the fallopian tube is as follows: First, in the initial state, Figure 1 and Figure 2As shown, the pressure sensing guidewire 40 is pre-installed in the inner catheter 30, and the distal end of the pressure sensing guidewire 40 is retracted in the inner catheter 30; the inner catheter 30 is pre-installed in the outer sheath 20, and the distal end of the inner catheter 30 is retracted in the outer sheath 20. Secondly, the inner catheter 30 and the pressure sensing guidewire 40 are passed through the mechanical channel of the hysteroscope along with the outer sheath 20 to enter the uterus, and the fallopian tube opening is found under the hysteroscope. Afterwards, the pressure sensing guidewire 40 is moved forward toward the distal end, and the guidewire head end 41 passes through the first liquid hole 32 at the distal end of the inner catheter 30 and the distal through hole 22 at the distal end of the outer sheath 20 in sequence, and then extends out of the outer sheath 20, as shown in FIG. Fig.15 As shown, the guide wire tip 41 is inserted into the interstitial part of the fallopian tube under hysteroscopy. The guide wire tip 41 is subjected to the reaction of the interstitial part of the fallopian tube, and the reaction force is transmitted to the pressure sensor 50. The controller 10 displays the pressure value fed back by the pressure sensor 50 in real time on the status indicator panel 80. The doctor finds the best insertion angle of the guide wire tip 41 into the interstitial part of the fallopian tube according to the pressure value, to prevent the doctor from damaging the fallopian tube due to violent insertion due to lack of experience. Then, the outer sheath 20 and the inner catheter 30 move distally with the guide wire tip 41 and are placed into the fallopian tube orifice, as shown in FIG. Fig.15 Then, the sealing fixing section 21 at the distal end of the outer sheath 20 expands, as shown. Fig.16 As shown, the distal end of the outer sheath 20 is fixed to the interstitial part of the fallopian tube, and the distal end of the outer sheath 20 and the interstitial part of the fallopian tube are also sealed, thus sealing the fallopian tube opening and isolating the pressure transmission between the uterine cavity and the fallopian tube. Finally, the pressure sensing guide wire 40 is moved toward the proximal end into the inner catheter 30, and the distal end of the inner catheter 30 and the guide wire tip 41 are both located in the outer sheath 20, as shown in FIG. Fig.17 As shown; the controller 10 drives the flow pump 70 to operate, and the liquid passing tube 60 introduces the medicine, and the medicine flows into the fallopian tube through the liquid passing cavity 31 of the inner catheter 30, the first liquid passing hole 32 of the inner catheter 30 and the distal through hole 22 of the outer sheath 20 in sequence. The controller 10 obtains the liquid flow rate n fed back by the flow pump 70 and the liquid pressure P fed back by the pressure sensor 50, and displays the relationship curve of the liquid flow rate n and the liquid pressure P on the status indication panel 80 in real time. The doctor judges the state of the fallopian tube, such as patency, obstruction, or fluid accumulation, based on the relationship curve of the liquid flow rate n and the liquid pressure P.

[0087] The operation of the fallopian tube diagnostic unblocking device to unblock the fallopian tube is as follows: First, Fig.19 As shown, the pressure sensing guide wire 40 is moved forward toward the distal end, and the inner catheter 30 is moved forward toward the distal end, so that the inner catheter 30 pushes open the distal through hole 22 of the outer sheath 20 and extends out of the outer sheath 20, and the guide wire tip 41 passes through the first liquid through hole 32 of the inner catheter 30 and extends out of the inner catheter 30. The controller 10 displays a curve diagram of the relationship between the pressure value fed back in real time by the pressure sensor 50 and the forward movement distance L of the inner catheter 30 and the pressure sensing guide wire 40 on the status indicator panel 80, and displays the dredging status information of the fallopian tube, such as Fig. 20 As shown, the doctor thus determines that the inner catheter 30 and the guide wire head 41 have passed the obstruction in the fallopian tube. Then, the pressure sensing guide wire 40 is moved back toward the proximal end into the inner catheter 30, as shown in FIG. Fig.21 Finally, the controller 10 drives the flow pump 70 to operate and re-permeate the fluid, thereby clearing the fallopian tube.

[0088] Therefore, the fallopian tube diagnostic and unblocking device involved in the present application can be used to diagnose whether the fallopian tube is unobstructed, and can also be used to unblock the fallopian tube; when the fallopian tube diagnostic and unblocking device is inserted into the fallopian tube, the doctor finds the best insertion angle according to the pressure value fed back by the pressure sensor 50 displayed on the status indicator panel 80, to prevent the operator from damaging the fallopian tube by inserting the device violently due to lack of experience, and it is not easy to damage the fallopian tube opening; during the diagnosis process, the doctor judges the unobstructed, blocked, blocked, and fluid accumulation states of the fallopian tube according to the relationship curve diagram of the liquid flow rate n and the liquid pressure P displayed on the status indicator panel 80, which effectively improves the accuracy of fallopian tube diagnosis and can also obtain more specific diagnosis and treatment results.

[0089] Furthermore, if Figure 3 As shown, the distal end of the inner catheter 30 is also provided with a plurality of second liquid holes 33 distributed on the outer peripheral side of the liquid cavity 31, and the liquid cavity 31 and the outside of the inner catheter 30 are connected through the second liquid holes 33. Fig.23 As shown, the inner catheter 30 outputs uniform liquid pressure through the second liquid hole 33, so that the inner catheter 30 can move forward or backward along with the internal structure of the fallopian tube, and during the forward and backward movement of the inner catheter 30, the liquid medicine output through the second liquid hole 33 will form a liquid protective layer between the inner catheter 30 and the fallopian tube, protecting the fallopian tube from being punctured.

[0090] Further, the preferred structure of the outer sheath 20 is: Figures 4 to 7 As shown, the sealing fixing section 21 at the distal end of the outer sheath 20 includes a pleated portion 211, an airbag portion 212 distributed on the proximal side of the pleated portion 211, and a blocking portion 213 separated between the pleated portion 211 and the airbag portion 212, and the blocking portion 213 is a part of the thin wall of the airbag portion 212; in this embodiment, there are two pleated portions 211, which are arranged axially, and the distal end of the pleated portion 211 on the distal side extends to the distal end of the outer sheath 20; in other words, the distal end surface of the pleated portion 211 constitutes the distal end surface of the outer sheath 20. When the distal end of the inner catheter 30 is retracted in the outer sheath 20, as shown in FIG. Figure 3As shown, the folded portion 211 is distributed on the outer peripheral side of the distal end of the inner catheter 30, the inner peripheral cavity of the folded portion 211 is connected to the second liquid hole 33, and the distal end of the folded portion 211 is also sealed with the distal end of the inner catheter 30. During the process of inserting the outer sheath 20 into the fallopian tube, the folded portion 211 is in a retracted state, so the folded portion 211 can be folded, which is convenient for the insertion of the folded portion 211 and reduces the damage to the fallopian tube. Afterwards, it is observed under the hysteroscope that the folded parts 211 are all inserted into the orifices of the fallopian tubes and then the liquid is passed through the liquid passage cavity 31. The liquid in the liquid passage cavity 31 will flow into the inner peripheral cavity of the folded parts 211 through the second liquid passage hole 33, driving the folded parts 211 to swell, and then fixing the distal end of the outer sheath 20 to the interstitial part of the fallopian tube; after that, air is ventilated into the airbag part 212 to drive the airbag part 212 to swell, so as to seal the orifices of the fallopian tubes and isolate the pressure transmission between the uterine cavity and the fallopian tubes, so that in the subsequent diagnosis and dredging process, the pressure sensing guide wire 40 can ensure a more accurate transmission force and eliminate external interference.

[0091] Furthermore, if Figure 1As shown, the fallopian tube diagnosis and dredging device also includes a venting tube 90 for introducing gas, and a solenoid valve 110, a pressure regulating valve 120 and a pressure gauge 130 which are serially installed on the venting tube 90. An axially extending venting cavity 23 is provided in the outer sheath 20. The proximal end and the distal end of the venting cavity 23 are respectively connected with the proximal end of the venting tube 90 and the airbag portion 212. The solenoid valve 110 and the pressure gauge 130 are both connected to the controller 10 for communication. The solenoid valve 110 is controlled by the controller 10, and the solenoid valve 110 acts on the pressure regulating valve 120 to control the opening of the pressure regulating valve 120, so as to inflate, maintain pressure and deflate the airbag portion 212; the pressure gauge 130 feeds back the real-time pressure in the venting cavity 23 of the outer sheath 20 to the controller 10, so that the controller 10 can control the operation of the flow pump 70 and control the pressure of the pressure regulating valve 120 through the solenoid valve 110, thereby accurately controlling the swelling degree of the fold portion 211 and the airbag portion 212. Specifically, when the flow pump 70 is running to pass liquid and drive the pleated portion 211 to swell, the blocking portion 213 can transmit pressure, and the pressure gauge 130 obtains the liquid pressure in the inner peripheral cavity of the pleated portion 211 at this time. When the liquid pressure reaches the set value, the controller 10 controls the flow pump 70 to stop automatically to prevent excessive discomfort to the patient; thereafter, the controller 10 sends an instruction to the solenoid valve 110 to increase the pressure value of the pressure regulating valve 120 to drive the airbag portion 212 to swell. The pressure gauge 130 obtains the gas pressure in the ventilation cavity 23 and the airbag portion 212 at this time. When the gas pressure reaches the set value, the controller 10 controls the solenoid valve 110 to switch to the pressure maintaining state and stop inflating the airbag portion 212. In addition, after the fallopian tube diagnostic clearing device is powered on, the controller 10 will open the solenoid valve 110 in advance and set the pressure regulating valve 120 to a lower pressure, so that there is a certain pressure in the ventilation cavity 23 and the air bag part 212 of the outer sheath 20, so that the outer sheath 20 can maintain a moderate rigidity and can be more easily and smoothly placed in the mechanical channel of the hysteroscope.

[0092] Preferably, the structure of the vent pipe 90 for introducing gas is as follows: Figure 1 As shown, one end of the vent pipe 90 is connected to an external gas source 170; in addition, as shown Figure 4 and Figure 6 As shown, the proximal end of the outer sheath 20 is provided with a ventilation pipe section 26 extending radially straight, and the ventilation pipe section 26 is communicated with the ventilation cavity 23 of the outer sheath 20, and the other end of the ventilation tube 90 is connected to the ventilation pipe section 26. In this way, the gas supplied by the external gas source 170 flows into the airbag portion 212 at the far end of the outer sheath 20 through the ventilation tube 90 and the ventilation cavity 23 in turn, so that the airbag portion 212 is inflated.

[0093] Preferably, if Figure 5 and Figure 7As shown, the folded portion 211 is tapered, and the outer diameter of the folded portion 211 gradually decreases from the proximal end to the distal end, so that the folded portion 211 is easily inserted into the fallopian tube. A cross groove 24 is provided on the distal end surface of the folded portion 211, and the cross groove 24 is connected to the distal through hole 22. The cross groove 24 can reduce the strength of the distal end surface of the folded portion 211, so that the inner catheter 30 can be pushed out from the distal through hole 22 of the outer sheath 20. Figure 3 , Figure 7 and Fig. 9 As shown, a first sealing cone 25 is provided on the inner circumference of the distal end of the pleated portion 211, and a second sealing cone 34 is provided on the outer circumference of the distal end of the inner catheter 30; when the distal end of the inner catheter 30 is folded in the outer sheath 20, the first sealing cone 25 and the second sealing cone 34 are in contact and matched, so as to achieve a sealing match between the distal end of the pleated portion 211 and the distal end of the inner catheter 30, thereby preventing the liquid medicine from flowing out of the outer sheath 20 during the process of the pleated portion 211 swelling with liquid. The outer sheath 20 is supported by an elastic body with a certain hardness, for example, the outer sheath 20 is made of rubber or silicone.

[0094] Furthermore, the preferred structure of the inner catheter 30 is as follows: Figures 8 to 12 As shown, the inner catheter 30 is an inner and outer double-layer structure, including an inner tube body 35 and an outer tube body 36 surrounding the inner tube body 35. The proximal end of the inner tube body 35 and the proximal end of the outer tube body 36 are fixed, and the annular cavity between the inner tube body 35 and the outer tube body 36 constitutes a liquid passage cavity 31. The liquid passage cavity 31 extends axially along the length direction of the inner catheter 30. The first liquid passage hole 32 is opened on the distal end surface of the inner tube body 35 and the distal end surface of the outer tube body 36, and the second liquid passage hole 33 is opened on the distal tube wall of the outer tube body 36. The pressure sensing guide wire 40 is movably arranged in the inner tube body 35. The first liquid passage hole 32 is an axially opened through hole, and the second liquid passage hole 33 is a radially opened through hole. A plurality of second liquid passage holes 33 are evenly distributed at the distal end of the outer tube body 36.

[0095] Furthermore, the inner tube body 35 and the outer tube body 36 are both bendable tubes, so the inner catheter 30 can be bent at any angle, which is beneficial to the dredging of the fallopian tube. The inner tube body 35 and the outer tube body 36 are both metal tubes, and the inner and outer peripheral surfaces of the metal tubes are coated with a sealing insulation layer, which is an elastic material and has the effect of sealing and insulation; the pressure sensing guide wire 40 is a metal wire. In this way, the inner catheter 30 and the pressure sensing guide wire 40 are both made of metal and can be presented under X-rays, so that the device can also pass contrast agents and take into account the use characteristics of other surgical procedures.

[0096] Preferably, the structure of the liquid passage 60 for introducing the liquid medicine is as follows: Figure 1As shown, one end of the liquid tube 60 is connected to a liquid medicine source 180. The liquid medicine source 180 can be a liquid medicine bag or a liquid medicine bottle containing liquid medicine. The liquid medicine composition is configured by the physician according to the needs, and can be a contrast agent, antibiotic saline, or methylene blue dye, etc. In addition, as Figures 9 to 11 As shown, the inner catheter 30 is provided with a liquid-passing pipe section 37 extending radially and straightly at one end at the proximal end of the outer tube body 36, and the liquid-passing pipe section 37 is communicated with the liquid-passing cavity 31 of the inner catheter 30, and the other end of the liquid-passing pipe 60 is connected to the liquid-passing pipe section 37. In this way, the liquid medicine supplied by the liquid medicine source 180 flows into the liquid-passing cavity 31 through the liquid-passing pipe section 37.

[0097] Furthermore, if Fig.13 and Fig.14 As shown, the distal end surface of the guide wire head 41 is a smooth round surface 42, so that the distal end of the pressure sensing guide wire 40 is rounded to avoid damaging the fallopian tube. The pressure sensor 50 is connected to the pressure sensing guide wire 40 as a whole.

[0098] Furthermore, if Figure 1 As shown, the fallopian tube diagnostic unclogging device also includes an operating handle 140 provided with a plurality of operating buttons. The operating handle 140 and the status indicator panel 80 are both communicatively connected with the controller 10 via a data interface 190; the plurality of operating buttons include a guide wire detection button, a fluid flow detection button, an automatic unclogging button, an end button, an emergency stop button, etc.

[0099] Furthermore, if Figure 1 As shown, the fallopian tube diagnosis and dredging device also includes a first drive unit 150 that is transmission-connected to the proximal end of the inner catheter 30, and a second drive unit 160 that is transmission-connected to the proximal end of the pressure sensing guide wire 40. The first drive unit 150 drives the inner catheter 30 to rotate and move axially, and the second drive unit 160 drives the pressure sensing guide wire 40 to rotate and move axially. The drive source in the first drive unit 150 and the drive source in the second drive unit 160 are both connected to the controller 10 for communication and are controlled by the signal of the controller 10. Therefore, the inner catheter 30 in the present application can move axially and rotate in the outer sheath 20, and the pressure sensing guide wire 40 can move axially and rotate in the inner catheter 30. During the dredging process, when the obstruction is large, the inner catheter 30 and the pressure sensing guide wire 40 can be rotated to make it easier to pass through the obstruction.

[0100] In summary, the method for using the fallopian tube diagnostic dredging device having the above structure to diagnose the patency of the fallopian tube includes the following steps:

[0101] A1. Power on the fallopian tube diagnostic dredging device, and the controller 10 opens the solenoid valve 110 in advance, and sets the pressure regulating valve 120 to a lower pressure, so that there is a certain pressure in the ventilation cavity 23 of the outer sheath 20 and the air bag part 212, and the outer sheath 20 maintains moderate rigidity and is inserted into the instrument channel of the hysteroscope.

[0102] A2. Pre-install the pressure sensing guidewire 40 in the inner catheter 30, and pre-install the inner catheter 30 in the outer sheath 20, and the distal ends of the pressure sensing guidewire 40 and the inner catheter 30 are both located in the outer sheath 20. The inner catheter 30 and the pressure sensing guidewire 40 are passed through the mechanical channel of the hysteroscope with the outer sheath 20 to enter the uterus, and the fallopian tube opening is found under the hysteroscope. The doctor presses the guidewire detection button on the operating handle 140, and the controller 10 controls the second drive unit 160 to move, pushing the guidewire head 41 of the pressure sensing guidewire 40 forward to the outside of the outer sheath 20, as shown in FIG. Fig.15 As shown; the guide wire tip 41 is inserted into the interstitial part of the fallopian tube under hysteroscopy, and the status indicator panel 80 displays the pressure value fed back in real time by the pressure sensor 50. The doctor finds the best insertion angle of the guide wire tip 41 into the interstitial part of the fallopian tube according to the pressure value to prevent the doctor from damaging the fallopian tube due to violent insertion due to lack of experience.

[0103] A3, the outer sheath 20 and the inner catheter 30 are moved forward with the guide wire tip 41 and inserted into the fallopian tube orifice. After the folds 211 are all inserted into the fallopian tube orifice under hysteroscopy, the doctor presses the liquid detection button on the operating handle 140. The controller 10 controls the flow pump 70 to operate, and the flow pump 70 flows the liquid in the liquid source 180 into the liquid cavity 31 of the inner catheter 30 through the liquid tube 60. The liquid flows into the inner peripheral cavity of the folds 211 through the second liquid hole 33 of the inner catheter 30. Fig.16 As shown, the pleated portion 211 swells and fixes the distal end of the outer sheath 20 to the interstitial part of the fallopian tube; during this process, the thinner sealing portion 213 between the pleated portion 211 and the airbag portion 212 transmits pressure, and the pressure gauge 130 obtains the liquid pressure in the inner peripheral cavity of the pleated portion 211. When the liquid pressure reaches the set value, the controller 10 controls the flow pump 70 to stop automatically to prevent the patient from excessive discomfort; and the first sealing cone surface 25 and the second sealing cone surface 34 are always in surface contact, and the guide wire tip 41 is also sealed with the hole wall of the first liquid hole 32, so the drug solution will not flow out to the outside of the outer sheath 20. After the flow pump 70 stops, the controller 10 sends a command to the solenoid valve 110, causing the pressure regulating valve 120 to increase the pressure value and inflate the airbag portion 212, causing the airbag portion 212 to expand. During this process, the pressure gauge 130 obtains the gas pressure in the ventilation cavity 23 and the airbag portion 212. When the gas pressure reaches the set value, the controller 10 controls the solenoid valve 110 to switch to a pressure-maintaining state, and the expanded airbag portion 212 is sealed at the opening of the fallopian tube, isolating the pressure transmission between the uterine cavity and the fallopian tube.

[0104] A4, the controller 10 controls the second driving unit 160 to move again, and the guide wire tip 41 of the pressure sensing guide wire 40 is retracted back into the inner catheter 30, as shown in FIG. Fig.17 Afterwards, the controller 10 controls the flow pump 70 to operate, and the flow pump 70 pumps the liquid medicine according to the set value, and the liquid medicine flows into the fallopian tube through the first liquid hole 32 of the inner catheter 30 and the distal through hole 22 of the outer sheath 20 to diagnose the state of the fallopian tube.

[0105] A5. A liquid pressure threshold value Px is pre-stored in the controller 10; the controller 10 obtains the liquid flow rate n fed back by the flow pump 70 and the liquid pressure P fed back by the pressure sensor 50, and displays the relationship curve graph between the liquid flow rate n and the liquid pressure P on the status indicator panel 80 in real time. The doctor determines the status of the fallopian tube, such as patency, obstruction, blockage, or fluid accumulation, based on the relationship curve graph between the liquid flow rate n and the liquid pressure P.

[0106] When the nP relationship curve diagram displayed on the status indication panel 80 is as shown in FIG. Fig.18a When shown, it indicates that the liquid pressure P fed back by the pressure sensor 50 is constant and always less than the liquid pressure threshold value Px, which means that the fallopian tube is unobstructed, and the pumping of the drug solution is stopped after the liquid flow rate n reaches the set value.

[0107] When the nP relationship curve diagram displayed on the status indication panel 80 is as shown in FIG. Fig.18b As shown, it indicates that the liquid pressure P fed back by the pressure sensor 50 first gradually increases and then gradually decreases to a constant value, but the liquid pressure P fed back by the pressure sensor 50 is always less than the liquid pressure threshold value Px, which means that the fallopian tube is not smooth and needs to be cleared by the subsequent inner catheter 30.

[0108] When the nP relationship curve diagram displayed on the status indication panel 80 is as shown in FIG. Fig.18c As shown, it indicates that the liquid pressure P fed back by the pressure sensor 50 has been gradually increasing and is greater than the liquid pressure threshold Px, indicating that the fallopian tube is blocked. At this time, the controller 10 controls the flow pump 70 to stop automatically, and the subsequent unblocking of the inner catheter 30 is required.

[0109] When the nP relationship curve diagram displayed on the status indication panel 80 is as shown in FIG. Fig.18d As shown, it indicates that the liquid pressure P fed back by the pressure sensor 50 first increases gradually, then gradually decreases to a constant value, but suddenly increases sharply to be greater than the liquid pressure threshold value Px, indicating that there are lesions such as fluid accumulation in the fallopian tube. At this time, the controller 10 controls the flow pump 70 to stop automatically, and subsequent surgical diagnosis combined with laparoscopy is required.

[0110] against Fig.18b and Fig.18cIn the case shown, the doctor presses the automatic dredging button on the operating handle 140, and the method for using the fallopian tube diagnosis and dredging device with the above structure to dredge the fallopian tube includes the following steps:

[0111] B1. The controller 10 controls the first driving unit 150 and the second driving unit 160 to move the pressure sensing guide wire 40 and the inner catheter 30 to move forward toward the distal end. Fig.19 As shown, the inner catheter 30 pushes open the distal through hole 22 of the outer sheath 20 and extends out of the outer sheath 20 , and the guide wire tip 41 passes through the first liquid hole 32 of the inner catheter 30 and extends out of the inner catheter 30 .

[0112] B2. The controller 10 displays a curve diagram of the relationship between the forward movement distance L of the inner catheter 30 and the pressure sensing guide wire 40 and the liquid pressure P fed back by the pressure sensor 50 on the status indicator panel 80. When the LP relationship curve diagram displayed on the status indicator panel 80 is as shown in FIG. Fig. 20 When shown, it indicates that the liquid pressure P fed back by the pressure sensor 50 first gradually increases from a constant value to the first pressure memory point P1, and then gradually decreases from the first pressure memory point P1 to a constant value, which means that the distal end of the inner catheter 30 and the guide wire tip 41 have passed through the obstruction. At the same time, the controller 10 automatically obtains the first distance memory point L1 and the second distance memory point L2. The first distance memory point L1 corresponds to the forward distance of the liquid pressure P increasing from a constant value, and the second distance memory point L2 corresponds to the forward distance of the liquid pressure P decreasing to a constant value.

[0113] B3, the controller 10 controls the second driving unit 160 to move again, and the guide wire tip 41 of the pressure sensing guide wire 40 is retracted back into the inner catheter 30, as shown in FIG. Fig.21 As shown; the controller 10 controls the flow pump 70 to operate and re-flow the liquid, and the liquid flows into the fallopian tube through the liquid cavity 31, the first liquid hole 32 and the second liquid hole 33 of the inner catheter 30. If the nP relationship curve shown on the status indicator panel 80 is as shown Fig.18a As shown in FIG. 1 , the dredging is successful, indicating that the obstruction is successfully separated by the inner catheter 30 and the pressure sensing guide wire 40. Fig.21 If the nP relationship curve diagram displayed on the status indication panel 80 is as shown Fig.18b As shown, execute the following step B4.

[0114] B4. The controller 10 sends instructions to the first drive unit 150 and the second drive unit 160 to make the inner catheter 30 and the pressure sensing guide wire 40 respectively retreat to the first distance memory point L1. After that, the first drive unit 150 drives the inner catheter 30 to rotate and reciprocate between the first distance memory point L1 and the second distance memory point L2. The first drive unit 150 drives the pressure sensing guide wire 40 to rotate and reciprocate between the first distance memory point L1 and the second distance memory point L2, and obtains the second pressure memory point P2 during the second operation and the third pressure memory point P3 during the third operation. Fig. 22 As shown in FIG. 1 , the liquid pressure corresponding to the pressure memory point will decrease as the number of operations increases. When the liquid pressure corresponding to the pressure memory point during the Nth operation decreases by more than 50% compared with the first pressure memory point P1, the liquid flow test is performed again. The operation is repeated until the status indicator panel 80 displays the following: Fig.18a The nP relationship curve is shown in the figure. Fig.23 As shown, the liquid medicine outputted through the second liquid hole 33 of the inner catheter 30 will form a liquid protective layer between the inner catheter 30 and the fallopian tube to protect the fallopian tube from being punctured.

[0115] B5. When the dredging is successful or other cases where interventional dredging is no longer suitable are shown, the doctor presses the end button on the operating handle 140, and the first drive unit 150 drives the inner catheter 30 to retract, and the second drive unit 160 drives the pressure sensing guide wire 40 to retract. When retracting to the fallopian tube orifice, the controller 10 controls the flow pump 70 to reverse, and the pressure of the liquid cavity 31 is relieved, and then the folded part 211 is relieved, and the fixing of the outer sheath 20 to the fallopian tube orifice is cancelled; at the same time, the solenoid valve 110 is relieved, and the expansion of the airbag part 212 is cancelled. When the value of the pressure gauge 130 degrees drops to the preset value, the status indicator panel 80 prompts that the pressure relief is completed, and the doctor dredges the other side of the fallopian tube under hysteroscopy or removes the device to end the operation.

[0116] The fallopian tube diagnostic and unclogging device involved in the present application has an automatic unclogging function, which greatly reduces the complexity of the doctor's surgical operation and can unblock the lesion point more accurately.

[0117] In summary, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0118] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A fallopian tube diagnostic and dredging device, characterized in that: The invention comprises an outer sheath (20), an inner catheter (30) movably inserted into the outer sheath (20), a pressure sensing guide wire (40) movably inserted into the inner catheter (30), a pressure sensor (50) fixed at the distal end of the pressure sensing guide wire (40), a liquid passage (60) for introducing a liquid medicine, a flow pump (70) installed on the liquid passage (60), a status indication panel (80), and a controller (10), wherein the distal end of the outer sheath (20) has a shrinkable sealing fixed section (21), and a pressure sensor (50) provided on the outer sheath. The distal through hole (22) is formed on the distal end surface of the sheath (20); the inner catheter (30) has a liquid passage cavity (31) connected to the liquid passage tube (60), and a first liquid passage hole (32) is formed on the distal end surface of the inner catheter (30) and connected to the liquid passage cavity (31); the pressure sensing guide wire (40) has a guide wire head (41) distributed on the distal side of the pressure sensor (50); the pressure sensor (50), the flow pump (70) and the status indicator panel (80) are all connected to the controller (10); The distal end of the inner conduit (30) is also provided with a plurality of second liquid-passing holes (33) distributed on the outer peripheral side of the liquid-passing cavity (31), and the liquid-passing cavity (31) and the outside of the inner conduit (30) are connected via the second liquid-passing holes (33); The sealing and fixing section (21) comprises a folded portion (211), an airbag portion (212) disposed on the proximal side of the folded portion (211), and a blocking portion (213) separated between the folded portion (211) and the airbag portion (212), wherein the distal end of the folded portion (211) extends to the distal end of the outer sheath (20); when the distal end of the inner catheter (30) is retracted in the outer sheath (20), the folded portion (211) is disposed on the outer peripheral side of the distal end of the inner catheter (30), the inner peripheral cavity of the folded portion (211) is in communication with the second liquid-passing hole (33), and the distal end of the folded portion (211) is in sealing cooperation with the distal end of the inner catheter (30); When the fallopian tube diagnostic dredging device is used to diagnose the patency of the fallopian tube, the distal end of the inner catheter (30) and the guide wire tip (41) are both located in the outer sheath (20), the first liquid passage hole (32) and the distal through hole (22) are connected, the controller (10) drives the flow pump (70) to operate, the liquid passage tube (60) introduces liquid medicine, and the liquid medicine flows into the fallopian tube in sequence through the liquid passage cavity (31) of the inner catheter (30), the first liquid passage hole (32) of the inner catheter (30) and the distal through hole (22) of the outer sheath (20), the controller (10) obtains the liquid flow rate n fed back by the flow pump (70) and the liquid pressure P fed back by the pressure sensor (50), and displays the relationship curve of the liquid flow rate n and the liquid pressure P on the status indication panel (80) in real time; When the fallopian tube diagnostic dredging device is used to dredge the fallopian tube, the inner catheter (30) pushes open the distal through hole (22) of the outer sheath (20) and then extends out of the outer sheath (20), the guide wire tip (41) passes through the first liquid through hole (32) of the inner catheter (30) and then extends out of the inner catheter (30), and the controller (10) displays a curve graph of the relationship between the pressure value fed back in real time by the pressure sensor (50) and the forward movement distance L of the inner catheter (30) and the pressure sensing guide wire (40) on the status indication panel (80).

2. The fallopian tube diagnostic and dredging device according to claim 1, characterized in that: The invention also comprises a ventilation tube (90) for introducing gas, and a solenoid valve (110), a pressure regulating valve (120) and a pressure gauge (130) which are serially mounted on the ventilation tube (90); a ventilation cavity (23) is provided in the outer sheath (20); the proximal end and the distal end of the ventilation cavity (23) are respectively connected to the ventilation tube (90) and the airbag portion (212); and the solenoid valve (110) and the pressure gauge (130) are both communicatively connected to the controller (10).

3. The fallopian tube diagnostic and dredging device according to claim 1, characterized in that: The folded portion (211) is tapered, and the outer diameter of the folded portion (211) gradually decreases in a direction from the proximal end to the distal end.

4. The fallopian tube diagnostic and dredging device according to claim 1, characterized in that: A cross groove (24) is provided on the distal end surface of the folded portion (211), and the cross groove (24) is communicated with the distal through hole (22).

5. The fallopian tube diagnostic and dredging device according to claim 1, characterized in that: A first sealing cone surface (25) is provided on the inner circumferential surface of the distal end of the pleated portion (211), and a second sealing cone surface (34) is provided on the outer circumferential surface of the distal end of the inner catheter (30); when the distal end of the inner catheter (30) is retracted into the outer sheath (20), the first sealing cone surface (25) and the second sealing cone surface (34) are in surface contact and fit.

6. The fallopian tube diagnostic and dredging device according to claim 1, characterized in that: The inner catheter (30) is an inner and outer double-layer structure, including an inner tube body (35) and an outer tube body (36) surrounding the inner tube body (35). The proximal end of the inner tube body (35) and the proximal end of the outer tube body (36) are fixed to each other. The annular cavity between the inner tube body (35) and the outer tube body (36) constitutes the liquid cavity (31). The first liquid hole (32) is provided on the distal end surface of the inner tube body (35) and the distal end surface of the outer tube body (36). The second liquid hole (33) is provided on the distal tube wall of the outer tube body (36). The pressure sensing guide wire (40) is movably arranged in the inner tube body (35).

7. The fallopian tube diagnostic and dredging device according to claim 6, characterized in that: The inner tube body (35) and the outer tube body (36) are both bendable tubes.

8. The fallopian tube diagnostic and dredging device according to claim 7, characterized in that: The inner tube body (35) and the outer tube body (36) are both metal tubes, and the inner and outer circumferential surfaces of the metal tubes are both covered with a sealing insulation layer; the pressure sensing guide wire (40) is a metal wire.

9. The fallopian tube diagnostic and dredging device according to claim 1, characterized in that: The distal end surface of the guide wire tip (41) is a smooth round surface (42).

10. The fallopian tube diagnosis and dredging device according to claim 1, characterized in that: It also includes an operating handle (140) provided with a plurality of operating buttons, and the operating handle (140) is communicatively connected with the controller (10).

11. The fallopian tube diagnostic and dredging device according to claim 1, characterized in that: It also includes a first drive unit (150) connected to the proximal end of the inner catheter (30) and a second drive unit (160) connected to the proximal end of the pressure sensing guide wire (40), wherein the first drive unit (150) drives the inner catheter (30) to rotate and move axially, and the second drive unit (160) drives the pressure sensing guide wire (40) to rotate and move axially, and the drive source in the first drive unit (150) and the drive source in the second drive unit (160) are both communicatively connected to the controller (10).

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