Anti-blocking intracranial pressure monitoring three-cavity drainage tube

Abstract

The utility model discloses an anti-blocking intracranial pressure monitoring three-cavity drainage tube, which belongs to the field of medical instruments and comprises a main tube, a drainage tube, a drainage tube, a drainage tube cover and a drainage tube cover. The expansion part is arranged in the drainage channel, the expansion part is not communicated with the drainage channel, and the expansion part can expand and block the drainage channel; the first branch pipe is provided with a ventilation channel in a penetrating mode, the first branch pipe is connected with the main pipe, the ventilation channel communicates with the expansion part, and the joint of the ventilation channel and the drainage channel is located between the expansion part and the tail; the second branch pipe is provided with an infusion channel in a penetrating mode, the infusion channel is communicated with the drainage channel in a one-way mode, liquid medicine can only enter the drainage channel through the infusion channel in a one-way mode, the joint of the infusion channel and the drainage channel is located between the expansion part and the head, and during use, drainage substances enter the drainage channel through the head and move towards the tail. By means of the arrangement, the intracranial and extracranial cross infection can be prevented during drainage, and the intracranial pressure of a patient can be monitored.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a three-cavity drainage tube for monitoring intracranial pressure and preventing blockage. BACKGROUND

[0002] When a patient has a cerebral hemorrhage, a hematoma can form in the intracranial cavity, and a drainage method is usually used clinically to drain the hematoma material outside the patient's hematoma cavity or ventricle. When using this method for treatment, because the drainage material includes liquid and tissue, it often causes the conventional drainage tube to be blocked, thereby affecting the discharge of the drainage material and causing the patient's condition to worsen. To solve the problem of blockage of the drainage tube, a forward injection of flushing liquid is usually used to unblock the drainage tube, but there is a risk of cross infection when the drainage material in the drainage tube exchanges with the flushing liquid, and the patient's intracranial pressure is also likely to rise.

[0003] Therefore, a drainage device that can prevent cross infection caused by flushing of a blocked portion during flushing is designed, and the drainage device is specifically a three-cavity drainage tube for monitoring intracranial pressure and preventing blockage. SUMMARY

[0004] To overcome the problems presented in the background art, the utility model adopts the following technical solutions:

[0005] A three-cavity drainage tube for monitoring intracranial pressure and preventing blockage, comprising: a main tube including a head portion and a tail portion, the main tube being provided with a drainage channel therethrough; an inflation portion provided in the drainage channel, the inflation portion being not in communication with the drainage channel, and the inflation portion being capable of inflating and blocking the drainage channel; a branch tube one provided with a ventilation channel therethrough, the branch tube one being connected to the main tube and the ventilation channel being in communication with the inflation portion, the ventilation channel being in communication with the inflation portion; and a branch tube two provided with an infusion channel therethrough, the branch tube two being connected to the main tube and the infusion channel being in one-way communication with the drainage channel, so that the liquid can only pass through the infusion channel into the drainage channel in one direction, and the connection between the infusion channel and the drainage channel is located between the inflation portion and the tail portion, and in use, the drainage material enters the drainage channel from the head portion and moves toward the tail portion.

[0006] Further, the inflation portion has an initial state, and when the fluid enters the inflation portion through the ventilation channel, the inflation portion can be driven to inflate to a blocking state; the inner wall of the main tube is provided with a plurality of drainage holes therethrough, and the inflation portion inflates to the blocking state to block the drainage holes.

[0007] Further, the drainage holes are distributed in a circumferential array around the axis of the drainage channel, the drainage holes are not in communication with the ventilation channel, and the drainage holes are not in communication with the infusion channel.

[0008] Further, the inflation part is provided with a pressure sensing piece arranged in the outer wall of the inflation part, when the inflation part is inflated to the blocking state, the pressure sensing piece faces the head of the main pipe, and the pressure sensing piece can sense the pressure of the inflation part on the drainage channel when the inflation part is inflated.

[0009] Further, the pressure sensing piece is arranged in a protection cavity arranged in the outer wall of the inflation part, the pressure sensing piece is connected to the side of the protection cavity facing the tail, the side of the protection cavity facing the head is not in contact with the pressure sensing piece when the protection cavity is not subjected to external force, and the side of the protection cavity facing the head extrudes the pressure sensing piece when the inflation part is inflated to the blocking state and the drainage material enters the drainage channel and extrudes the protection cavity. The pressure applied to the pressure sensing piece by the drainage material entering the drainage channel through the head is the same as the intracranial pressure of the patient, so that the pressure sensing piece can accurately detect the pressure of the intracranial cavity of the patient when the inflation part is inflated to the blocking state.

[0010] Further, the pressure sensing piece is connected with a lead wire, and the other end of the lead wire passes through the branch pipe and is left outside.

[0011] Further, a one-way valve is arranged between the infusion channel and the drainage channel, the infusion channel and the drainage channel are communicated through the one-way valve, the one-way valves are arranged along the axial direction of the infusion channel, and the fluid in the infusion channel can enter the drainage channel through the one-way valves, so that the intracranial material of the patient is prevented from flowing out through the infusion channel.

[0012] Further, a ventilation hole is arranged between the ventilation channel and the inflation part, the ventilation channel and the inflation part are communicated through the ventilation hole, and the fluid can reciprocate in the inflation part and the ventilation channel through the ventilation hole.

[0013] Further, the protection cavity is not communicated with the internal space of the inflation part, and the protection cavity is not communicated with the drainage channel.

[0014] Further, the diameters of the branch pipe one and the branch pipe two are smaller than the diameter of the main pipe, the central axis of the branch pipe one and the central axis of the main pipe have an included angle less than 90°, and the central axis of the branch pipe two and the central axis of the main pipe have an included angle less than 90°.

[0015] The utility model discloses the beneficial effect:

[0016] By setting the one-way valve, the flushing liquid and the infused medicine can only enter the drainage channel in one direction, which is conducive to preventing the drainage material from entering the infusion channel, thereby significantly reducing the risk of cross infection. By setting the inflatable part that can be inflated to a blocking state, the flushing liquid can be concentrated between the inflatable part and the tail part, thereby preventing the flushing liquid and the drainage material from entering the patient's cranial cavity during flushing; at the same time, by setting the sensing element on the inflatable part that can monitor the intracranial pressure of the patient, the drainage material such as the hematoma in the patient's intracranial cavity has an excellent auxiliary effect. By setting the infusion channel, the drainage tube has the function of infusing medicine into the patient's intracranial cavity, and at the same time, the infusion channel can be used to infuse the flushing liquid for flushing the blocked part when the inflatable part is inflated. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings. Among them:

[0018] Figure 1 It is the overall structure schematic diagram of the present application when the inflatable part is in the initial state;

[0019] Figure 2 It is the cross-sectional structure schematic diagram of the present application when the inflatable part is in the initial state; Figure 1

[0020] Figure 3 It is the enlarged structure diagram of the part A in the present application; Figure 2

[0021] Figure 4 It is the cross-sectional structure schematic diagram of the present application when the inflatable part is in the blocking state;

[0022] Figure 5 It is the enlarged structure diagram of the part B in the present application; Figure 4

[0023] In the figure, 1, main pipe; 11, head; 12, tail; 13, drainage channel; 14, drainage hole; 2, inflatable part; 21, pressure sensing element; 22, protection cavity; 23, lead wire; 3, branch pipe one; 31, ventilation channel; 32, ventilation hole; 4, branch pipe two; 41, infusion channel; 42, one-way valve. DETAILED DESCRIPTION

[0024] ​​​The technical solutions in the embodiments of the utility model will be described clearly and completely below by specific specific embodiments. Obviously, the described embodiments are only some of the embodiments of the utility model, not all the embodiments, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. The utility model can also be implemented or applied by other different specific embodiments, and the following embodiments and the features in the embodiments can be combined with each other without conflict, and all other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the utility model belong to the protection scope of the utility model.

[0025] A kind of anti-clogging intracranial pressure monitoring three cavity drainage tube, as shown in Figure Figures 1-5 It includes: main pipe 1, including head 11 and tail 12, main pipe 1 is throughly provided with drainage passage 13;Expansion part 2 is arranged in drainage passage 13, expansion part 2 is not communicated with drainage passage 13, expansion part 2 can expand and block drainage passage 13;Branch pipe one 3 is throughly provided with ventilation passage 31, branch pipe one 3 is connected with main pipe 1 and ventilation passage 31 is communicated with expansion part 2, ventilation passage 31 is communicated with expansion part 2;Branch pipe two 4 is throughly provided with infusion passage 41, branch pipe two 4 is connected with main pipe 1 and infusion passage 41 is one-way communicated with drainage passage 13, and the liquid can only pass through infusion passage 41 and enter drainage passage 13 in one-way, the connection of infusion passage 41 and drainage passage 13 is located between expansion part 2 and tail 12, when using, drainage material enters drainage passage 13 through head 11 and moves to tail 12.

[0026] In some embodiments of the present application, as shown in Figures 1-5 Expansion part 2 has initial state, and when fluid enters expansion part 2 through ventilation passage 31, expansion part 2 can be driven to expand to blocking state, and the fluid entering expansion part 2 through ventilation passage 31 can be gas or liquid. The inner wall of main pipe 1 is throughly provided with a plurality of drainage holes 14, and expansion part 2 expands to the blocking state to block drainage holes 14. When drainage holes 14 are blocked, the material in the patient's cranial cavity stops entering drainage passage 13 from the head 11 of the drainage tube, and at this time, the part of drainage passage 13 between expansion part 2 and tail 12 can be flushed by injecting flushing liquid into infusion passage 41.

[0027] In some embodiments of the present application, as shown in Figures 1-5 Drainage holes 14 are distributed in a circumferential array around the axis of drainage passage 13, drainage holes 14 are not communicated with ventilation passage 31, and drainage holes 14 are not communicated with infusion passage 41, so that drainage material will not flow into the external environment through ventilation passage 31 or infusion passage 41.

[0028] In some embodiments of the present application, as shown in Figures 1-5As shown, the inflation part 2 is provided with a pressure sensing part 21, which is arranged in the outer wall of the inflation part 2. When the inflation part 2 is inflated to the blocking state, the pressure sensing part 21 faces the head part 11 of the main pipe 1. When the inflation part 2 is inflated, the pressure sensing part 21 can sense the pressure of the inflation part 2 on the drainage channel 13. Specifically, the pressure sensing part 21 is arranged in a protection cavity 22 arranged in the outer wall of the inflation part 2. The pressure sensing part 21 is connected to the side of the protection cavity 22 facing the tail part 12. When the protection cavity 22 is not subjected to external force, the side of the protection cavity 22 facing the head part 11 is not in contact with the pressure sensing part 21. When the inflation part 2 is inflated to the blocking state and the drainage material enters the drainage channel 13 and presses the protection cavity 22, the side of the protection cavity 22 facing the head part 11 presses the pressure sensing part 21. When the drainage material enters the drainage channel 13 through the head part 11 and fills the part of the drainage channel 13 between the head part 11 and the inflation part 2, the pressure applied to the pressure sensing part 21 is the same as the intracranial pressure of the patient. Therefore, the pressure sensing part 21 can accurately detect the pressure of the cranial cavity of the patient when the inflation part 2 is inflated to the blocking state. When the drainage material enters the drainage channel 13 but does not fill the drainage channel 13, the protection cavity 22 subjected to the pressure of the drainage material can also transmit the pressure of the drainage material to the pressure sensing part 21. The pressure sensing part 21 is connected to a lead wire 23, the other end of the lead wire 23 passes through the branch pipe one 3 and is left outside. When the pressure sensing part 21 is pressed by the protection cavity 22, the pressure sensing part 21 transmits data to the external instrument through the lead wire 23. The protection cavity 22 is not in communication with the internal space of the inflation part 2, and the protection cavity 22 is not in communication with the drainage channel 13.

[0029] In some embodiments of the present application, as shown in Figures 1-5 A one-way valve 42 is arranged between the infusion channel 41 and the drainage channel 13. The infusion channel 41 and the drainage channel 13 are in communication through the one-way valve 42. The one-way valve 42 is arranged along the axial direction of the infusion channel 41. The fluid in the infusion channel 41 can pass through the one-way valve 42 and enter the drainage channel 13, preventing the intracranial material of the patient from flowing out through the infusion channel 41. When medical staff infuse liquid medicine or flushing liquid into the patient's body through the infusion channel 41, the conical channel structure in the one-way valve 42 is also beneficial to increase the initial velocity of the fluid entering the drainage channel 13, which is beneficial to increase the pushing effect of the flushing liquid on the blocked material in the drainage channel 13 during flushing. The infused liquid medicine includes urokinase, which can dissolve the material blocked in the drainage channel 13.

[0030] In some embodiments of the present application, as shown in Figures 1-5 A ventilation hole 32 is arranged between the ventilation channel 31 and the inflation part 2. The ventilation channel 31 and the inflation part 2 are in communication through the ventilation hole 32. Fluid can reciprocate in the inflation part 2 and the ventilation channel 31 through the ventilation hole 32.

[0031] In some embodiments of the present application, as shown in Figures 1-5As shown, the diameters of the branch pipe one 3 and the branch pipe two 4 are both smaller than that of the main pipe 1, the central axis of the branch pipe one 3 and the central axis of the main pipe 1 have an angle less than 90°, and the central axis of the branch pipe two 4 and the central axis of the main pipe 1 have an angle less than 90°, which is beneficial to the smooth movement of the gas input into the expansion part 2 and the liquid input into the infusion channel 41.

Claims

1. An anti-clogging intracranial pressure monitoring triple-lumen drain, characterized in that, The application relates to a drainage tube. The drainage tube comprises a main pipe, an inflation part, a first branch pipe and a second branch pipe. The main pipe comprises a head and a tail, and a drainage channel is arranged in the main pipe. The inflation part is arranged in the drainage channel and is not communicated with the drainage channel. The first branch pipe is connected with the main pipe and is provided with a ventilation channel.

2. An anti-clogging intracranial pressure monitoring triple lumen drainage tube according to claim 1, wherein The second branch pipe is connected with the main pipe and is provided with an infusion channel.

3. The anti-clogging intracranial pressure monitoring three-lumen drainage tube according to claim 2, characterized in that, The inflation part has an initial state, and the inflation part can be driven to expand to a blocking state when fluid enters the inflation part through the ventilation channel.

4. The anti-clogging intracranial pressure monitoring three-lumen drainage tube according to claim 3, characterized in that, The inner wall of the main pipe is provided with a plurality of drainage holes.

5. An anti-blocked intracranial pressure monitoring triple lumen catheter according to any one of claims 3-4, characterized in that, The inflation part is provided with a pressure sensing part.

6. The anti-clogging intracranial pressure monitoring three-lumen drainage tube according to claim 1, wherein, The pressure sensing part is arranged in a protection cavity.

7. An anti-clogging intracranial pressure monitoring triple lumen drainage tube as claimed in claim 1, wherein, The pressure sensing part is connected with a lead wire.

8. An anti-clogging intracranial pressure monitoring tri- lumen drainage tube according to claim 2, wherein The infusion channel and the drainage channel are provided with a one-way valve.

9. An anti-clogging intracranial pressure monitoring triple lumen drainage tube as claimed in claim 4, wherein, The ventilation channel and the inflation part are provided with a ventilation hole.

10. The anti-clogging intracranial pressure monitoring three-lumen drainage tube according to claim 1, wherein, The drainage holes are arranged in a circular array around the axis of the drainage channel. The protection cavity is not communicated with the inner space of the inflation part and the drainage channel. The diameters of the first branch pipe and the second branch pipe are smaller than that of the main pipe. The central axis of the first branch pipe and the central axis of the main pipe have an included angle less than 90 degrees. The central axis of the second branch pipe and the central axis of the main pipe have an included angle less than 90 degrees.

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