CN115251843A - Oviduct diagnosis dredging device - Google Patents

Abstract

The invention provides a fallopian tube diagnosis dredging device, including the sheath, the inner catheter that is worn in the sheath movably, wear the pressure sensing guide wire in the inner catheter movably, the pressure sensor fixed in distal end of the pressure sensing guide wire, the liquid pipe, install the flow pump, state indicator panel and control device on the liquid pipe, the distal end of the sheath has sealed fixed section and distal end through hole, the inner catheter has the liquid through cavity communicated with liquid pipe, and offer on the distal end terminal surface of the inner catheter and first liquid through hole communicated with liquid through cavity, the pressure sensing guide wire has guide wire head end distributed on distal side of the pressure sensor; when the inner catheter and the guide wire head end are both positioned in the outer sheath, the first liquid through hole is communicated with the distal through hole. An operator finds out the optimal insertion angle according to the pressure value fed back by the pressure sensor displayed by the state indicating panel, so as to avoid damaging the oviduct; and accurately judging the state of the oviduct according to the liquid flow fed back by the flow pump and the liquid pressure fed back by the pressure sensor obtained by the controller.

Description

Oviduct diagnosis dredging device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a fallopian tube diagnosis and dredging device.

Background

The hydrotubation liquid is prepared by injecting Meilan liquid or normal saline into uterine cavity from cervix, flowing into hydrotubation from uterine cavity, and judging whether the hydrotubation is smooth or not according to resistance and liquid reflux condition when injecting liquid medicine. At present, when a clinical hydrotubation device is used, a uterus hydrotubation catheter is usually inserted into a neck tube according to the detection direction of a probe, the uterus hydrotubation catheter is fixed at a pre-selected depth, and then a solution is slowly pushed and injected into the liquid; if the liquid is injected smoothly, no resistance exists, no leakage exists outside the cervix, and the patient has no obvious discomfort, which indicates that the fallopian tube is unobstructed; if the patient suffers from resistance and slight pressure, the patient can be injected smoothly with slight abdominal discomfort, which indicates that the fallopian tube is blocked; when the resistance is large, the liquid overflows from the external cervical orifice and the abdomen is hard to swell, so the fallopian tube is totally obstructed. Moreover, when the liquid is introduced, the stethoscope can hear the sound emitted from the umbrella end of the fallopian tube on the two sides of the lower abdomen.

In conclusion, the anterior pressure during the fluid infusion is judged by the self-experience of the operator, and the mode has extremely high requirements on the operator, is easy to misdiagnose and has the possibility of the danger of oviduct rupture. In addition, with the progress of materials and technology of the liquid instillation device in recent years, the liquid instillation tube can directly reach the uterine cavity end close to one side of the fallopian tube under the guidance of the guide wire, so that whether the fallopian tube is unobstructed can be checked, the adhesion is light, and meanwhile, the liquid instillation treatment of the fallopian tube can be carried out. But the difficulty of judging whether the fallopian tube is unobstructed is increased, the accuracy of fallopian tube diagnosis is reduced, and medical accidents are easy to happen only by the experience and the hand feeling of doctors.

Disclosure of Invention

In view of the above-mentioned disadvantages of the prior art, the present invention aims to provide a fallopian tube diagnosis dredging device which effectively improves the accuracy of fallopian tube diagnosis and simultaneously effectively prevents damage to the fallopian tube.

In order to achieve the above purpose, the present invention provides a fallopian tube diagnosis dredging device, which comprises 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 through tube for introducing a liquid medicine, a flow pump arranged on the liquid through tube, a state indication panel and a controller, wherein the distal end of the outer sheath is provided with a collapsible sealing fixing section and a distal end through hole arranged on the distal end face of the outer sheath, the inner catheter is provided with a liquid through cavity communicated with the liquid through tube and a first liquid through hole arranged on the distal end face of the inner catheter and communicated with the liquid through cavity, and the pressure sensing guide wire is provided with a guide wire head end distributed at the distal end side of the pressure sensor; the pressure sensor, the flow pump and the state indication panel are all in communication connection with the controller;

when the distal end of the inner catheter and the guide wire head end are both positioned in the outer sheath, the first liquid through hole is communicated with the distal through hole.

Furthermore, a plurality of second liquid through holes distributed on the outer periphery of the liquid through cavity are formed in the far end of the inner catheter, and the liquid through cavity is communicated with the outside of the inner catheter through the second liquid through holes.

Further, the sealing fixing section comprises a fold part, a balloon part distributed on the proximal side of the fold part and a blocking part separated between the fold part and the balloon part, wherein the distal end of the fold part extends to the distal end of the outer sheath;

when the distal end of the inner catheter is folded in the outer sheath, the fold part is distributed on the outer periphery side of the distal end of the inner catheter, the inner periphery cavity of the fold part is communicated with the second liquid through hole, and the distal end of the fold part is in sealing fit with the distal end of the inner catheter.

Furthermore, the fallopian tube diagnosis and dredging device further comprises a vent pipe for introducing gas, and an electromagnetic valve, a pressure regulating valve and a pressure gauge which are connected in series on the vent pipe, wherein a ventilation cavity is formed in the sheath, the near end and the far end of the ventilation cavity are respectively communicated with the vent pipe and the air bag part, and the electromagnetic valve and the pressure gauge are in communication connection with the controller.

Further, the corrugations are tapered, and the outer diameter of the corrugations decreases in a direction from the proximal end to the distal end.

Furthermore, a cross groove is formed in the far end face of the fold part and communicated with the far end through hole.

Furthermore, a first sealing conical surface is arranged on the inner peripheral surface of the far end of the folded part, and a second sealing conical surface is arranged on the outer peripheral surface of the far end of the inner guide pipe; the first and second sealing tapers are in surface contact engagement when the distal end of the inner catheter is collapsed within the outer sheath.

Further, the inner catheter is of an inner-outer double-layer structure and comprises an inner-layer tube body and an outer-layer tube body surrounding the inner-layer tube body, the near end of the inner-layer tube body is fixed to the near end of the outer-layer tube body, an annular cavity between the inner-layer tube body and the outer-layer tube body forms the liquid through cavity, the first liquid through hole is formed in the far end face of the inner-layer tube body and the far end face of the outer-layer tube body, the second liquid through hole is formed in the far end tube wall of the outer-layer tube body, and the pressure sensing guide wire is movably arranged in the inner-layer tube body in a penetrating mode.

Further, the inner layer pipe body and the outer layer pipe body are bendable bent pipes.

Furthermore, the inner layer pipe body and the outer layer pipe body are both metal pipes, and the inner circumferential surface and the outer circumferential surface of each metal pipe are coated with sealing insulating layers; the pressure sensing guide wire is a metal wire.

Further, the distal end face of the guide wire head end is a smooth round face.

Furthermore, the oviduct diagnosis dredging device also comprises an operating handle provided with a plurality of operating buttons, and the operating handle is in communication connection with the controller.

Furthermore, the fallopian tube diagnosis dredging device also comprises a first driving unit in transmission connection with the proximal end of the inner catheter and a second driving unit in transmission connection with the proximal end of the pressure sensing guide wire, wherein the first driving unit drives the inner catheter to rotate and axially move, the second driving unit drives the pressure sensing guide wire to rotate and axially move, and a driving source in the first driving unit and a driving source in the second driving unit are both in communication connection with the controller.

As described above, the fallopian tube diagnosis and deocclusion device according to the present invention has the following advantages:

the fallopian tube diagnosis dredging device is used for diagnosing whether the fallopian tube is unobstructed or not and dredging the fallopian tube when the fallopian tube is diagnosed to be unobstructed, when the fallopian tube diagnosis dredging device is inserted into the fallopian tube, the head end of the guide wire is always positioned outside the outer sheath and the inner catheter, the reaction force can be transmitted to the pressure sensor, an operator finds out the optimal insertion angle according to the pressure value fed back by the pressure sensor displayed on the state indication panel, and the situation that the operator is short of experience and violently inserts into the fallopian tube to damage the fallopian tube is prevented; in addition, in the diagnosis process, the flow pump is controlled to operate, liquid is introduced into the fallopian tube sequentially through the liquid introduction tube, the liquid introduction cavity and the first liquid introduction hole of the inner catheter and the distal end through hole of the outer sheath, the controller obtains the liquid introduction flow fed back by the flow pump and the liquid pressure fed back by the pressure sensor, the unobstructed state of the fallopian tube can be accurately judged according to the two data, and the accuracy of fallopian tube diagnosis is effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of a fallopian tube diagnosis dredging device in the application.

FIG. 2 is a schematic view of the connection between the outer sheath, inner catheter and pressure sensing guidewire in the present application.

Fig. 3 is an enlarged view of circle a of fig. 2.

FIG. 4 is a schematic view of the structure of the sheath of the present application.

Fig. 5 is an enlarged view of circle B of fig. 4.

Fig. 6 is a half sectional view of fig. 4.

Fig. 7 is an enlarged view of circle C of fig. 6.

Fig. 8 is a schematic view of the structure of the inner catheter in the present application.

Fig. 9 is an enlarged view of circle D of fig. 8.

Fig. 10 is a front view of fig. 8.

Fig. 11 is a half sectional view of fig. 8.

Fig. 12 is an enlarged view of circle E of fig. 11.

Fig. 13 is a schematic view of a pressure sensing guidewire according to the present application.

Fig. 14 is an enlarged view of the F-circle of fig. 13.

Fig. 15 to 17 are operation process diagrams of the oviduct diagnosis and dredging device for diagnosing the patency state of the oviduct in the application.

Fig. 18a to 18d are graphs showing the relationship between the flow rate n and the pressure P.

FIG. 19 is a schematic view showing a state where the oviduct diagnostic pull-through device of the present application is used for pulling through the oviduct.

Fig. 20 is a graph showing the relationship between the moving distance L and the fluid pressure P when the inner catheter and the pressure sensing guide wire are judged to pass through the obstacle when the fallopian tube is opened.

FIG. 21 is a schematic view of the fallopian tube diagnosis deoccluding device according to the present application in a state two when used for deoccluding the fallopian tube.

FIG. 22 is a graph showing the relationship between the distance of movement L and the fluid pressure P during the tubal ostium.

Fig. 23 is a schematic view of the relationship between the inner catheter and the pressure sensing guidewire and the fallopian tube during the process of dredging the fallopian tube.

Description of the element reference numerals

10. Controller

20. Sheath

21. Sealing fixed section

211. Fold part

212. Air bag part

213. Plugging part

22. Distal end via

23. Ventilation cavity

24. Cross slot

25. First sealing conical surface

26. Ventilation pipe joint

30. Inner catheter

31. Liquid through cavity

32. First liquid through hole

33. Second liquid through hole

34. First sealing conical surface

35. Inner pipe body

36. Outer pipe body

37. Liquid-passing pipe connecting section

40. Pressure sensing guidewire

41. Guide wire head end

42. Smooth round surface

50. Pressure sensor

60. Liquid through pipe

70. Flow pump

80. Status indication panel

90. Vent pipe

110. Electromagnetic valve

120. Pressure regulating valve

130. Pressure gauge

140. Operating handle

150. First drive unit

160. Second drive unit

170. External gas source

180. Source of medicinal liquid

190. Data interface

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, proportions, and dimensions shown in the drawings and described in the specification are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description only and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be made without substantial technical changes and modifications.

The application provides a fallopian tube diagnosis dredging device which is used for diagnosing the unobstructed state of the fallopian tube and dredging the fallopian tube when the obstructed state of the fallopian tube is diagnosed. For convenience of description, in the following examples, the end of the oviduct diagnostic pull-up means close to the operator is defined as a proximal end, and the end of the oviduct diagnostic pull-up means far from the operator is defined as a distal end; the operator is typically a doctor.

As shown in fig. 1 to 3, the fallopian tube diagnostic bypass device according to the present application comprises 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 through tube 60 for introducing a liquid medicine, a flow pump 70 mounted on the liquid through tube 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 along the proximal end towards the distal end, the inner catheter 30 is axially movably arranged in the outer sheath 20, and the pressure sensing guide wire 40 is axially movably arranged in the inner catheter 30; the distal end of the sheath 20 is provided with a collapsible sealing fixing section 21 and a distal through hole 22 arranged on the distal end face of the sheath 20, and the sheath 20 can be fixed at the mouth part of the fallopian tube and sealed with the mouth part of the fallopian tube by the expansion of the sealing fixing section 21; the inner catheter 30 is provided with a liquid through cavity 31 communicated with the liquid through pipe 60 and a first liquid through hole 32 which is arranged on the far end face of the inner catheter 30 and is communicated with the liquid through cavity 31; the pressure sensing guidewire 40 has a guidewire tip 41 disposed distally of the pressure sensor 50; the pressure sensor 50, flow pump 70 and status indicator panel 80 are all communicatively coupled to the controller 10.

In the fallopian tube diagnosis and dredge device, the far end of the inner catheter 30 can be folded in the outer sheath 20 or extend out of the outer sheath 20 from the far end through hole 22 of the outer sheath 20 by controlling the axial movement of the inner catheter 30 in the outer sheath 20; by controlling the axial movement of the pressure sensing wire 40 within the inner catheter 30, the distal wire tip 41 of the pressure sensing wire 40 can be collapsed within the inner catheter 30 or sequentially extended out of the first fluid passage 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. When the distal end of the inner catheter 30 is collapsed in the outer sheath 20 and the guide wire head end 41 is collapsed in the inner catheter 30, i.e., the distal end of the inner catheter 30 and the guide wire head end 41 are both located in the outer sheath 20, as shown in fig. 17, the first liquid passing 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 communicated.

The oviduct diagnosis dredging device is used under a hysteroscope when used for diagnosing the unobstructed state of an oviduct and dredging the oviduct, and the outer sheath 20 is arranged in a mechanical channel of the hysteroscope in a penetrating mode in the process.

The operation of the oviduct diagnostic pull-through for diagnosing the patency of the oviduct is as follows: first, in an initial state, as shown in fig. 1 and 2, the pressure sensing wire 40 is preloaded in the inner catheter 30, and the distal end of the pressure sensing wire 40 is collapsed in the inner catheter 30; the inner catheter 30 is pre-assembled in the outer sheath 20, and the distal end of the inner catheter 30 is collapsed in the outer sheath 20. Second, the inner catheter 30 and pressure sensing guidewire 40 are threaded with the outer sheath 20 in the mechanical channel of the hysteroscope into the uterus and find the tubal ostium under the hysteroscope. Then, the pressure sensing guide wire 40 is moved forward towards the distal end, and the guide wire head end 41 sequentially passes through 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 and then extends out of the outer sheath 20, as shown in fig. 15, the guide wire head end 41 is inserted into the interstitial part of the fallopian tube under the hysteroscope, the guide wire head end 41 is reacted by the interstitial part of the fallopian tube, and transmits the reaction force to the pressure sensor 50, the controller 10 displays the pressure value fed back by the pressure sensor 50 in real time on the state indication panel 80, and a doctor finds out the optimal insertion angle of the head end guide wire 41 into the interstitial part of the fallopian tube according to the pressure value, thereby preventing the damage of the fallopian tube caused by insufficient experience and violent insertion. Then, the outer sheath 20 and the inner catheter 30 are moved distally together with the guide wire tip 41 and are placed into the ostium, as shown in FIG. 15. Then, the sealing fixing section 21 at the distal end of the outer sheath 20 is expanded, as shown in FIG. 16, to fix the distal end of the outer sheath 20 to the interstitial portion of the fallopian tube, and to seal the distal end of the outer sheath 20 and the interstitial portion of the fallopian tube, thereby sealing the ostium portion and isolating the pressure transmission between the uterine cavity and the fallopian tube. Finally, the pressure sensing guidewire 40 is proximally withdrawn into the inner catheter 30, with both the distal end of the inner catheter 30 and the guidewire tip 41 positioned within the outer sheath 20, as shown in FIG. 17; the controller 10 drives the flow pump 70 to operate, the liquid medicine is introduced into the liquid passing tube 60, the liquid medicine flows into the oviduct sequentially 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 end through hole 22 of the outer sheath 20, the controller 10 obtains the liquid passing flow n fed back by the flow pump 70 and the liquid pressure P fed back by the pressure sensor 50, a relation curve chart of the liquid passing flow n and the liquid pressure P is displayed on the state indication panel 80 in real time, and a doctor judges states of smoothness, unsmooth passage, blockage, effusion and the like of the oviduct according to the relation curve chart of the liquid passing flow n and the liquid pressure P.

The oviduct diagnosis dredging device is used for dredging the oviduct and comprises the following operations: first, as shown in fig. 19, the pressure sensing wire 40 is advanced distally, and the inner catheter 30 is advanced distally, so that the inner catheter 30 extends out of the outer sheath 20 after pushing the distal through hole 22 of the outer sheath 20, and the wire tip 41 extends out of the inner catheter 30 after passing through the first fluid hole 32 of the inner catheter 30. The controller 10 displays a graph of the relationship between the pressure value fed back by the pressure sensor 50 in real time and the advancing distance L of the inner catheter 30 and the pressure sensing guide wire 40 on the status indication panel 80, and displays the tubal obstruction status information, as shown in fig. 20, so that the doctor can judge that the inner catheter 30 and the guide wire tip 41 pass through the obstruction in the fallopian tube. The pressure sensing guidewire 40 is then proximally withdrawn into the inner catheter 30, as shown in fig. 21. Finally, the controller 10 drives the flow pump 70 to operate, and the fluid is again passed, thereby opening the fallopian tube.

Therefore, the fallopian tube diagnosis dredging device related to the application can be used for diagnosing whether the fallopian tube is unobstructed or not and dredging the fallopian tube; when the fallopian tube diagnosis dredging device is inserted into the fallopian tube, a doctor finds out the optimal insertion angle according to the pressure value fed back by the pressure sensor 50 displayed on the state indicating panel 80, so that the situation that the fallopian tube is damaged due to violent insertion of the operator into the fallopian tube due to insufficient experience is prevented, and the mouth part of the fallopian tube is not easily damaged; in the diagnosis process, the doctor judges the states of the fallopian tube such as unobstructed, obstructed, blocked, effusion and the like according to the relation curve graph of the liquid flowing flow n and the liquid pressure P displayed on the state indication panel 80, so that the accuracy of fallopian tube diagnosis is effectively improved, and a more specific diagnosis and treatment result can be obtained.

Furthermore, as shown in fig. 3, the distal end of the inner catheter 30 is further provided with a plurality of second liquid through holes 33 distributed on the outer periphery of the liquid through cavity 31, and the liquid through cavity 31 is communicated with the outside of the inner catheter 30 through the second liquid through holes 33. In this way, in the process of dredging the fallopian tube, as shown in fig. 23, the inner catheter 30 outputs uniform liquid pressure through the second liquid passing hole 33, so that the inner catheter 30 can move forward or backward along with the internal structure of the fallopian tube, and in the process of moving the inner catheter 30 forward and backward, the liquid medicine output through the second liquid passing hole 33 forms a liquid protection layer between the inner catheter 30 and the fallopian tube, thereby protecting the fallopian tube from being punctured.

Further, the sheath 20 is preferably constructed as follows: as shown in fig. 4 to 7, the sealing fixing section 21 at the distal end of the outer sheath 20 includes a folded portion 211, balloon portions 212 distributed at the proximal side of the folded portion 211, and a blocking portion 213 partitioned between the folded portion 211 and the balloon portions 212, the blocking portion 213 being a partially thin wall of the balloon portions 212; in this embodiment, the two folds 211 are axially arranged, and the distal end of the distal fold 211 extends to the distal end of the sheath 20; alternatively, the distal end face of the folded portion 211 constitutes the distal end face of the outer sheath 20. When the distal end of the inner catheter 30 is folded in the outer sheath 20, as shown in fig. 3, the folded part 211 is distributed on the outer periphery of the distal end of the inner catheter 30, the inner periphery cavity of the folded part 211 is communicated with the second liquid through hole 33, and the distal end of the folded part 211 is also in sealing fit with the distal end of the inner catheter 30. During insertion of the outer sheath 20 into the fallopian tube, the corrugated portion 211 is in a collapsed state, so that the corrugated portion 211 can be folded to facilitate insertion of the corrugated portion 211, and damage to the fallopian tube is also reduced. Then, when the folded part 211 is observed to be placed in the mouth part of the fallopian tube under the hysteroscope, the liquid medicine in the liquid through cavity 31 flows into the inner peripheral cavity of the folded part 211 through the second liquid through hole 33, so that the folded part 211 is driven to expand, and the far end of the outer sheath 20 is fixed on the interstitial part of the fallopian tube; then, the air is introduced into the air bag portion 212 to inflate the air bag portion 212, so as to seal the mouth portion of the fallopian tube and isolate the pressure transmission between the uterine cavity and the fallopian tube, thereby ensuring more accurate conductivity of the pressure sensing guide wire 40 in the subsequent diagnosis and dredging processes and eliminating external interference.

Further, as shown in fig. 1, the fallopian tube diagnosis and deoccluding device further comprises a vent tube 90 for introducing gas, and a solenoid valve 110, a pressure regulating valve 120 and a pressure gauge 130 which are serially connected to the vent tube 90, wherein an axially extending vent cavity 23 is formed in the outer sheath 20, a proximal end and a distal end of the vent cavity 23 are respectively communicated with a proximal end of the vent tube 90 and a proximal end of the balloon portion 212, and the solenoid valve 110 and the pressure gauge 130 are both in communication connection with the controller 10. The electromagnetic valve 110 is controlled by the controller 10, the electromagnetic valve 110 acts on the pressure regulating valve 120 to control the opening degree of the pressure regulating valve 120, and is used for inflating, maintaining pressure and deflating the air bag part 212; the pressure gauge 130 feeds back the real-time pressure in the vent lumen 23 of the sheath 20 to the controller 10, so that the controller 10 can control the operation of the flow pump 70 and the pressure of the pressure regulating valve 120 through the solenoid valve 110, thereby precisely controlling the swelling degree of the bellows portion 211 and the balloon portion 212. Specifically, when the flow pump 70 is operated to circulate the liquid to inflate the folded part 211, the blocking part 213 can conduct the pressure, the pressure gauge 130 obtains the liquid pressure in the inner peripheral cavity of the folded part 211 at this time, and when the liquid pressure reaches a set value, the controller 10 controls the flow pump 70 to automatically stop, so as to prevent the patient from being excessively uncomfortable; then, the controller 10 sends a command to the electromagnetic valve 110 to raise the pressure regulating valve 120 to the pressure value, thereby inflating the airbag portion 212, the pressure gauge 130 obtains the gas pressure in the vent chamber 23 and the airbag portion 212 at this time, and when the gas pressure reaches a set value, the controller 10 controls the electromagnetic valve 110 to switch to the pressure maintaining state, thereby stopping the inflation of the airbag portion 212. In addition, after the tubal diagnosis and dredge device is powered on, the controller 10 will open the electromagnetic 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, and thus the outer sheath 20 can maintain a moderate stiffness and be more easily and smoothly placed in the mechanical channel of the hysteroscope.

Preferably, the structure of the vent pipe 90 for introducing gas is: as shown in fig. 1, one end of the vent tube 90 is connected to an external gas source 170; in addition, as shown in FIGS. 4 and 6, the proximal end of the sheath 20 is provided with a vent connector 26 extending straight in the radial direction, the vent connector 26 is communicated with the vent lumen 23 of the sheath 20, and the other end of the vent tube 90 is connected with the vent connector 26. In this manner, the gas supplied from the external gas source 170 flows into the balloon portion 212 at the distal end of the outer sheath 20 through the vent tube 90 and the vent lumen 23 in sequence, and inflates the balloon portion 212.

Preferably, as shown in fig. 5 and 7, the corrugated portion 211 is tapered, and the outer diameter of the corrugated portion 211 is gradually reduced in a direction from the proximal end to the distal end, so that the corrugated portion 211 is inserted into the fallopian tube. The distal end face of the corrugated portion 211 is provided with a cross groove 24, the cross groove 24 is communicated with the distal end through hole 22, and the cross groove 24 can reduce the strength of the distal end face of the corrugated portion 211, so that the inner catheter 30 can be ejected out of the distal end through hole 22 of the outer sheath 20. As shown in fig. 3, 7 and 9, the inner peripheral surface of the distal end of the corrugated portion 211 is provided with a first sealing tapered surface 25, and the outer peripheral surface of the distal end of the inner tube 30 is provided with a second sealing tapered surface 34; 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 surface contact fit, so that the distal end of the folded part 211 and the distal end of the inner catheter 30 are in sealing fit, and the liquid medicine is prevented from flowing out of the outer sheath 20 during the liquid-filling swelling process of the folded part 211. The sheath 20 is integrally supported by a rigid elastomer, for example, the sheath 20 is made of rubber or silicone.

Further, the preferred structure of the inner catheter 30 is: as shown in fig. 8 to 12, the inner catheter 30 has an inner and outer double-layer structure, and includes an inner-layer tube 35 and an outer-layer tube 36 surrounding the outer portion of the inner-layer tube 35, the proximal end of the inner-layer tube 35 and the proximal end of the outer-layer tube 36 are fixed to each other, the annular cavity between the inner-layer tube 35 and the outer-layer tube 36 forms a fluid-passing cavity 31, the fluid-passing cavity 31 axially extends along the length direction of the inner catheter 30, the first fluid-passing hole 32 is formed in the distal end surface of the inner-layer tube 35 and the distal end surface of the outer-layer tube 36, the second fluid-passing hole 33 is formed in the distal end wall of the outer-layer tube 36, and the pressure-sensing guide wire 40 is movably inserted into the inner-layer tube 35. The first liquid through holes 32 are through holes formed in the axial direction, the second liquid through holes 33 are through holes formed in the radial direction, and the plurality of second liquid through holes 33 are evenly distributed at the far end of the outer-layer tube body 36.

Further, the inner tube 35 and the outer tube 36 are bendable, so that the inner catheter 30 can be bent at any angle, which is beneficial to dredging the fallopian tube. The inner layer pipe body 35 and the outer layer pipe body 36 are both metal pipes, the inner circumferential surface and the outer circumferential surface of each metal pipe are coated with sealing insulating layers, and the sealing insulating layers are made of elastic materials and have sealing and insulating effects; the pressure sensing guidewire 40 is a wire. Thus, the inner catheter 30 and the pressure sensing guide wire 40 are made of metal and can be displayed under X-ray, so that the device can be filled with contrast medium, and other operation characteristics are considered.

Preferably, the liquid medicine is introduced into the liquid introducing tube 60 by the following structure: as shown in fig. 1, one end of the liquid flowing tube 60 is connected to a liquid medicine source 180, the liquid medicine source 180 may be a liquid medicine bag or a liquid medicine bottle for holding liquid medicine, the liquid medicine composition is configured by a doctor according to requirements, and may be a contrast agent, an antibiotic physiological saline or a methylene blue staining agent. In addition, as shown in fig. 9 to 11, the inner catheter 30 is provided with a liquid passing stub 37 having one end extended straight in a radial direction at the proximal end of the outer tube body 36, the liquid passing stub 37 is communicated with the liquid passing lumen 31 of the inner catheter 30, and the other end of the liquid passing tube 60 is connected with the liquid passing stub 37. Thus, the chemical supplied from the chemical source 180 flows into the liquid passage chamber 31 through the liquid passage connecting pipe section 37.

Further, as shown in fig. 13 and 14, the distal end surface of the guide wire tip 41 is a smooth round surface 42, so that the distal end of the pressure sensing guide wire 40 is round and smooth, and the fallopian tube is prevented from being damaged. The pressure sensor 50 is integrally connected to the pressure sensing guidewire 40.

Further, as shown in fig. 1, the fallopian tube diagnosis dredging device further comprises an operating handle 140 provided with a plurality of operating buttons, and the operating handle 140 and the status indication panel 80 are both in communication connection with the controller 10 through a data interface 190; the operation buttons comprise a guide wire detection button, a liquid-passing detection button, an automatic dredging button, an ending button, an emergency stop button and the like.

Further, as shown in fig. 1, the fallopian tube diagnosis deoccluding device further comprises a first driving unit 150 in transmission connection with the proximal end of the inner catheter 30, and a second driving unit 160 in transmission connection with the proximal end of the pressure sensing guide wire 40, wherein the first driving unit 150 drives the inner catheter 30 to rotate and axially move, the second driving unit 160 drives the pressure sensing guide wire 40 to rotate and axially move, and the driving source in the first driving unit 150 and the driving source in the second driving unit 160 are both in communication connection with the controller 10 and controlled by signals of the controller 10. Thus, the inner catheter 30 of the present application is axially movable and rotatable within the outer sheath 20, and the pressure sensing wire 40 is axially movable and rotatable within the inner catheter 30, which facilitates passage of an obstruction therethrough by rotation of the inner catheter 30 and the pressure sensing wire 40 when the obstruction is relatively large during a deocclusion procedure.

In conclusion, the application method of the oviduct diagnosis dredging device with the structure for diagnosing the patency state of the oviduct comprises the following steps:

a1, electrifying the oviduct diagnosis dredging device, opening the electromagnetic valve 110 in advance by the controller 10, and setting the pressure regulating valve 120 to be lower pressure so that a certain pressure exists in the ventilation cavity 23 and the air sac part 212 of the outer sheath 20, and the outer sheath 20 keeps a proper rigidity to be inserted into an instrument channel of the hysteroscope.

A2, pre-loading the pressure sensing guidewire 40 within the inner catheter 30, pre-loading the inner catheter 30 within the outer sheath 20, and positioning both the distal end of the pressure sensing guidewire 40 and the distal end of the inner catheter 30 within the outer sheath 20. The inner catheter 30 and pressure sensing guidewire 40 are threaded with the outer sheath 20 in the mechanical channel of the hysteroscope into the uterus and find the ostium of the fallopian tube under the hysteroscope. When the doctor presses the guide wire detecting button on the operation handle 140, the controller 10 controls the second driving unit 160 to move, so as to push the guide wire head end 41 of the pressure sensing guide wire 40 forward out of the sheath 20, as shown in fig. 15; the guide wire head end 41 is inserted into the interstitial part of the fallopian tube under the hysteroscope, the state indicating panel 80 displays the pressure value fed back by the pressure sensor 50 in real time, and a doctor finds out the optimal insertion angle of the guide wire head end 41 inserted into the interstitial part of the fallopian tube according to the pressure value, thereby preventing the damage to the fallopian tube caused by violent insertion due to insufficient experience of the doctor.

A3, the outer sheath 20 and the inner catheter 30 are moved forward along with the guide wire head end 41 and are placed in the mouth of the fallopian tube, and after the folded part 211 is placed in the mouth of the fallopian tube under the hysteroscope, a doctor presses down a liquid through detection button on the operating handle 140. The controller 10 controls the flow pump 70 to operate, the flow pump 70 flows the medical fluid in the medical fluid source 180 into the fluid through tube 60 into the fluid through cavity 31 of the inner catheter 30, the medical fluid flows into the inner peripheral cavity of the fold 211 through the second fluid through hole 33 of the inner catheter 30, as shown in fig. 16, the fold 211 is expanded, and the distal end of the outer sheath 20 is fixed to the interstitial portion of the fallopian tube; in the process, the thinner blocking part 213 between the folded part 211 and the air bag part 212 conducts pressure, the pressure gauge 130 obtains the liquid pressure in the inner peripheral cavity of the folded part 211, and when the liquid pressure reaches a set value, the controller 10 controls the flow pump 70 to automatically stop, so as to prevent the patient from being excessively uncomfortable; the first sealing tapered surface 25 and the second sealing tapered surface 34 are always in surface contact with each other, and the space between the guide wire tip 41 and the hole wall of the first fluid passage hole 32 is also sealed, so that the medical fluid does not flow out to the outside of the sheath 20. After the flow pump 70 is stopped, the controller 10 sends a command to the electromagnetic valve 110 to raise the pressure value of the pressure regulating valve 120, and inflates the air bag portion 212, so that the air bag portion 212 is inflated; in the process, the pressure gauge 130 obtains the gas pressure in the ventilation cavity 23 and the air bag part 212, when the gas pressure reaches a set value, the controller 10 controls the electromagnetic valve 110 to switch to the pressure maintaining state, and the inflated air bag part 212 is blocked at the mouth part of the fallopian tube, so that the pressure transmission between the uterine cavity and the fallopian tube is isolated.

A4, the controller 10 controls the second driving unit 160 to act again, so as to retract the guide wire tip 41 of the pressure sensing guide wire 40 back into the inner catheter 30, as shown in fig. 17; thereafter, the controller 10 controls the flow pump 70 to operate, the flow pump 70 pumps the medical fluid according to the set value, and the medical fluid flows into the fallopian tube through the first fluid passage hole 32 of the inner catheter 30 and the distal through hole 22 of the outer sheath 20, thereby performing a state diagnosis of the fallopian tube.

A5, a liquid pressure threshold value Px is prestored in the controller 10; the controller 10 obtains the liquid flow n fed back by the flow pump 70 and the liquid pressure P fed back by the pressure sensor 50, and displays the relation curve chart of the liquid flow n and the liquid pressure P on the state indicating panel 80 in real time, and a doctor judges the states of the fallopian tube such as unobstructed, obstructed, blocked, effusion and the like according to the relation curve chart of the liquid flow n and the liquid pressure P.

When the n-P relation graph displayed on the status indication panel 80 is shown in fig. 18a, it indicates that the liquid pressure P fed back by the pressure sensor 50 is constant and always less than the liquid pressure threshold Px, it indicates that the fallopian tube is unblocked, and the pumping of the liquid medicine is stopped after the liquid flow rate n reaches the set value.

When the n-P relation graph displayed on the status indication panel 80 is shown in fig. 18b, it indicates that the liquid pressure P fed back by the pressure sensor 50 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 Px, which indicates that the fallopian tube is obstructed and the inner catheter 30 needs to be subsequently opened.

When the n-P relationship graph displayed on the status indication panel 80 is shown in fig. 18c, which indicates that the liquid pressure P fed back by the pressure sensor 50 is gradually increasing and is greater than the liquid pressure threshold Px, it indicates that the fallopian tube is blocked, and at this time, the controller 10 controls the flow pump 70 to automatically stop, and the inner catheter 30 needs to be subsequently unclogged.

When the n-P relation graph displayed on the status indication panel 80 is shown in fig. 18d, it indicates that the liquid pressure P fed back by the pressure sensor 50 gradually increases and then gradually decreases to a constant value, but suddenly and rapidly increases to be greater than the liquid pressure threshold Px, which indicates that there is a lesion such as effusion in the fallopian tube, and at this time, the controller 10 controls the flow pump 70 to automatically stop, and it is necessary to perform a subsequent surgical diagnosis with the laparoscope.

In the case of fig. 18b and 18c, the method for using the oviduct diagnosis pull-up device with the structure for pulling up the oviduct comprises the following steps:

b1, the controller 10 controls the first driving unit 150 and the second driving unit 160 to move the pressure sensing guide wire 40 forward towards the distal end, so that the inner catheter 30 moves forward towards the distal end, as shown in fig. 19, the inner catheter 30 pushes the distal through hole 22 of the outer sheath 20 open and then extends out of the outer sheath 20, and the guide wire head end 41 extends out of the inner catheter 30 through the first liquid through hole 32 of the inner catheter 30.

B2, the controller 10 displays a graph of the distance L of advancement of the inner catheter 30 and the pressure sensing guidewire 40 and the liquid pressure P fed back by the pressure sensor 50 on the status indication panel 80. When the L-P relationship graph displayed on the status indication panel 80 is shown in fig. 20, it indicates that the fluid pressure P fed back by the pressure sensor 50 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 indicates that the distal end of the inner catheter 30 and the guide wire tip 41 pass through the obstruction. At the same time, the controller 10 automatically acquires a first distance memory point L1 corresponding to the advancing distance by which the liquid pressure P starts increasing from a constant value, and a second distance memory point L2 corresponding to the advancing distance by which the liquid pressure P decreases to a constant value.

B3, the controller 10 controls the second driving unit 160 to act again, so as to retract the guide wire tip 41 of the pressure sensing guide wire 40 back into the inner catheter 30, as shown in fig. 21; the controller 10 controls the flow pump 70 to operate, and the liquid medicine is supplied to the oviduct through the liquid passage chamber 31, the first liquid passage hole 32 and the second liquid passage hole 33 of the inner catheter 30. If the n-P relationship graph displayed on the status indication panel 80 is as shown in fig. 18a, the clearing is successful, indicating that the obstruction was successfully separated by the inner catheter 30 and the pressure sensing guidewire 40, as shown in fig. 21. If the n-P relation graph displayed on the status indication panel 80 is as shown in fig. 18B, the following step B4 is performed.

B4, the controller 10 sends a command to the first driving unit 150 and the second driving unit 160 to retract the inner catheter 30 and the pressure sensing guide wire 40 to the first distance memory point L1, and then the first driving 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, and the first driving 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 to obtain the second pressure memory point P2 in the second operation and the third pressure memory point P3 in the third operation, as shown in fig. 22, the liquid pressure corresponding to the pressure memory point decreases with the increase of the number of operations, and when the liquid pressure corresponding to the pressure memory point in the nth operation decreases by more than 50% compared to the first pressure memory point P1, the liquid passing test is performed; the operation is repeated until the n-P relation graph shown in fig. 18a is displayed on the status indication panel 80. In the dredging process, as shown in fig. 23, the liquid medicine output through the second liquid through hole 33 of the inner catheter 30 forms a liquid protective layer between the inner catheter 30 and the fallopian tube to protect the fallopian tube from being punctured.

B5, in case of successful dredging or other indicated interventions no longer suitable, the physician presses the end button on the operating handle 140, the first driving unit 150 drives the inner catheter 30 back, and the second driving unit 160 drives the pressure sensing guidewire 40 back. When the sheath is retracted to the mouth of the fallopian tube, the controller 10 controls the flow pump 70 to rotate reversely, so as to release the pressure of the liquid through cavity 31, then the fold part 211 releases the pressure, and the fixation of the sheath 20 at the mouth of the fallopian tube is cancelled; meanwhile, the electromagnetic valve 110 releases the pressure, the expansion of the air bag part 212 is cancelled, when the degree value of the pressure gauge 130 is reduced to a preset value, the state indicating panel 80 prompts the completion of the pressure release, and a doctor conducts dredging of the other side of the fallopian tube under the hysteroscope or takes out the device to finish the operation.

The application relates to an automatic dredging function that oviduct diagnosis pull throughs had, greatly reduced doctor's operation complexity, also more accurate dredges to the focus point.

In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (13)

1. A diagnostic tubal pull through device characterized by: the medical pressure monitoring device comprises an outer sheath (20), an inner catheter (30) movably arranged in the outer sheath (20), a pressure sensing guide wire (40) movably arranged in the inner catheter (30), a pressure sensor (50) fixed at the distal end of the pressure sensing guide wire (40), a liquid through pipe (60) used for introducing liquid medicine, a flow pump (70) arranged on the liquid through pipe (60), a state indicating panel (80) and a controller (10), wherein the distal end of the outer sheath (20) is provided with a retractable sealing fixing section (21) and a distal through hole (22) formed in the distal end face of the outer sheath (20), the inner catheter (30) is provided with a liquid through cavity (31) communicated with the liquid through pipe (60) and a first liquid through hole (32) formed in the distal end face of the inner catheter (30) and communicated with the liquid through cavity (31), the pressure sensing guide wire (40) is provided with a guide wire head end (41) distributed on the distal side of the pressure sensor (50), and the pressure sensor (50), the flow pump (70) and the state indicating panel (80) are all connected with the controller (10);

when the distal end of the inner catheter (30) and the guide wire head end (41) are both positioned in the outer sheath (20), the first liquid through hole (32) and the distal through hole (22) are communicated.

2. The tubal diagnostic pull through of claim 1 wherein: the far end of the inner catheter (30) is also provided with a plurality of second liquid through holes (33) distributed on the outer periphery side of the liquid through cavity (31), and the liquid through cavity (31) is communicated with the outside of the inner catheter (30) through the second liquid through holes (33).

3. The tubal diagnostic pull through of claim 2 wherein: the seal fixing section (21) comprises a fold part (211), a balloon part (212) distributed on the proximal side of the fold part (211), and a blocking part (213) separated between the fold part (211) and the balloon part (212), wherein the distal end of the fold part (211) extends to the distal end of the outer sheath (20); when the distal end of the inner catheter (30) is folded in the outer sheath (20), the folded parts (211) are distributed on the outer periphery of the distal end of the inner catheter (30), the inner periphery cavities of the folded parts (211) are communicated with the second liquid through holes (33), and the distal ends of the folded parts (211) are in sealing fit with the distal end of the inner catheter (30).

4. The tubal diagnostic pull through of claim 3 wherein: the gas-liquid separation device is characterized by further comprising a vent pipe (90) used for introducing gas, and an electromagnetic valve (110), a pressure regulating valve (120) and a pressure gauge (130) which are connected in series and installed on the vent pipe (90), a vent cavity (23) is formed in the outer sheath (20), the near end and the far end of the vent cavity (23) are respectively communicated with the vent pipe (90) and the air bag portion (212), and the electromagnetic valve (110) and the pressure gauge (130) are in communication connection with the controller (10).

5. The tubal diagnostic pull through of claim 3 wherein: the fold part (211) is conical, and the outer diameter of the fold part (211) is gradually reduced along the direction from the proximal end to the distal end.

6. The tubal diagnostic pull through of claim 3 wherein: the far-end face of the fold part (211) is provided with a cross groove (24), and the cross groove (24) is communicated with the far-end through hole (22).

7. The tubal diagnostic pull through of claim 3 wherein: a first sealing conical surface (25) is arranged on the inner peripheral surface of the far end of the folded part (211), and a second sealing conical surface (34) is arranged on the outer peripheral surface of the far end of the inner guide pipe (30); the first sealing cone surface (25) and the second sealing cone surface (34) are in surface contact engagement when the distal end of the inner catheter (30) is collapsed within the outer sheath (20).

8. The tubal diagnostic pull through of claim 2 wherein: inner catheter (30) are inside and outside bilayer structure, including inlayer body (35) and encircle at the outside outer body (36) of inlayer body (35), the near-end of inlayer body (35) and the near-end of outer body (36) are fixed mutually, annular chamber between inlayer body (35) and outer body (36) constitutes logical liquid chamber (31), first logical liquid hole (32) are seted up on the distal end terminal surface of inlayer body (35) and the distal end terminal surface of outer body (36), second logical liquid hole (33) are seted up on the distal end pipe wall of outer body (36), pressure sensing seal wire (40) are movably worn to establish in inlayer body (35).

9. The tubal diagnostic pull through of claim 8 wherein: the inner layer pipe body (35) and the outer layer pipe body (36) are bendable bent pipes.

10. The tubal diagnostic pull through of claim 9 wherein: the inner layer pipe body (35) and the outer layer pipe body (36) are metal pipes, and the inner circumferential surface and the outer circumferential surface of each metal pipe are coated with sealing insulating layers; the pressure sensing guide wire (40) is a metal wire.

11. The tubal diagnostic pull through of claim 1 wherein: the far end face of the guide wire head end (41) is a smooth round face (42).

12. The tubal diagnostic pull through of claim 1 wherein: the intelligent control system is characterized by further comprising an operating handle (140) provided with a plurality of operating buttons, wherein the operating handle (140) is in communication connection with the controller (10).

13. The tubal diagnostic pull through of claim 1 wherein: the pressure-sensing catheter further comprises a first driving unit (150) in transmission connection with the proximal end of the inner catheter (30) and a second driving unit (160) in transmission connection with the proximal end of the pressure-sensing guide wire (40), wherein the first driving unit (150) drives the inner catheter (30) to rotate and axially move, the second driving unit (160) drives the pressure-sensing guide wire (40) to rotate and axially move, and a driving source in the first driving unit (150) and a driving source in the second driving unit (160) are in communication connection with the controller (10).

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