Drainage puncture device for internal medicine

Abstract

The invention relates to the field of medical apparatus and instruments, and discloses a drainage puncture device for internal medicine, which comprises a puncture drainage module and a liquid storage cylinder, a liquid drainage assembly communicated with the puncture drainage module is arranged in the liquid storage cylinder, and a sliding assembly movably attached to the liquid drainage assembly is arranged in the liquid storage cylinder. A first cavity and a second cavity which are distributed up and down are formed in the liquid storage cylinder through a sliding assembly, and the liquid drainage assembly comprises a housing and a second inclined surface arranged on the housing. Through cooperation of the housing, the second inclined plane, the sliding assemblies and the like, the housing automatically ascends under the buoyancy action of the accumulated liquid, automatic switching of the accumulated liquid to the first cavity and the second cavity is achieved, the housing can be rapidly switched between the first cavity and the second cavity, the housing does not stay for a long time between the sliding assemblies, and the safety of the device is improved. The confusion phenomenon of effusion in different time periods can be effectively avoided, and the connection time of the first cavity and the second cavity can be effectively shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a drainage puncture device for internal medicine. Background Art

[0002] In clinical medical treatment, a large amount of fluid in the patient's body is often extracted through a drainage puncture device, and then the fluid is tested and analyzed to help diagnose the disease. Existing drainage puncture devices are mostly composed of a puncture needle, a drainage tube and a drainage bag. During operation, the puncture needle is inserted into the patient's lesion, and the accumulated fluid is drawn into the drainage bag through the drainage tube.

[0003] For example, Chinese patent publication number CN117503301A discloses a puncture drainage device, which relates to the field of medical devices and includes a liquid storage cylinder, a protective auxiliary cylinder arranged at the outer end of the liquid storage cylinder; a drainage auxiliary tube connected between the liquid storage cylinder and the protective auxiliary cylinder; a puncture needle fixedly connected to the front end of the drainage auxiliary tube; a protective auxiliary mechanism arranged between the protective auxiliary cylinder and the puncture needle; a separation auxiliary mechanism arranged on the inner side of the liquid storage cylinder, and the separation auxiliary mechanism includes: a buoyancy frame and a separation auxiliary frame. The automatic drive control of the separation auxiliary mechanism is realized, so that the drainage effusion of different periods is automatically separated inside the liquid storage cylinder, which greatly avoids the confusion of drainage effusion of different periods, ensures the accuracy of the test results when the drainage effusion is tested, and solves the problem that the drainage effusion of different periods is easily confused in the process of drainage storage using a drainage bag, which affects the accuracy of the test results when the drainage effusion is tested.

[0004] This application realizes automatic separation of accumulated liquid inside the liquid storage cylinder by the rising of the buoyancy frame. However, the rising of the buoyancy frame is driven only by the buoyancy of the accumulated liquid, so that the buoyancy frame will stay between the two partition plates for a long time, and a certain amount of accumulated liquid will accumulate between the two partition plates, which may cause confusion of accumulated liquid at different time periods, and there are certain limitations in use.

[0005] Therefore, it is necessary to provide a drainage puncture device for internal medicine to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a drainage puncture device for internal medicine to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, a drainage puncture device for internal medicine is designed, which can realize the rapid switching of the cover shell in two cavities to avoid the confusion of effusion at different time periods.

[0008] Based on the above ideas, the present invention provides the following technical solutions: a drainage puncture device for internal medicine, comprising a puncture and drainage module and a liquid storage cylinder, wherein the liquid storage cylinder is provided with a drainage component connected to the puncture and drainage module, and the liquid storage cylinder is provided with a sliding component movably fitted with the drainage component. The interior of the liquid storage cylinder is formed with a first cavity and a second cavity distributed up and down by the sliding component, and the drainage component comprises a cover shell and a second inclined surface opened on the cover shell; through the second inclined surface and the sliding component, the cover shell can be quickly switched from the first cavity to the second cavity.

[0009] As a further solution of the present invention: the drainage assembly also includes a branch pipe that slides with the liquid storage cylinder, the bottom of the branch pipe is connected to the cover shell, and the top of the branch pipe is connected to a telescopic tube that is fixedly connected to the puncture drainage module, and a first inclined surface is provided on both sides of the cover shell, and the first inclined surface is arranged to intersect with the second inclined surface.

[0010] As a further solution of the present invention: the number of the second inclined surfaces is two and they are symmetrically arranged on both sides of the cover shell, the two second inclined surfaces are designed in an inverted figure eight shape as a whole, and the two first inclined surfaces are designed in an figure eight shape as a whole.

[0011] As a further solution of the present invention: the sliding assembly includes two partition plates that slide with the liquid storage cylinder, a first spring is fixedly installed between one side of the partition plate and the inner wall of the liquid storage cylinder, a semicircular hole that is movably fitted with the branch pipe is opened on the other side of the partition plate, and a baffle for closing the semicircular hole is elastically connected to the other side of the partition plate through a second spring; lower inclined surfaces are opened on the opposite sides of the two partition plates, and the two lower inclined surfaces are designed in an eight-shaped shape as a whole.

[0012] As a further solution of the present invention: both inner walls of the liquid storage cylinder are provided with sliding grooves for the partition plates to slide, and the first spring is arranged in the sliding groove, so that the two partition plates tend to approach each other through the first spring.

[0013] As a further solution of the present invention: when the two partition plates are relatively far away from each other, the baffle plate can slide along the partition plates through the second spring, form a relative protrusion based on the partition plates, and contact the second inclined surface of the cover shell.

[0014] As a further solution of the present invention: when the intersection of the first inclined surface and the second inclined surface corresponds to and contacts the bottom surface of the baffle, the bottom surface of the cover shell is lower than the bottom surface of the partition plate; when the intersection of the first inclined surface and the second inclined surface is located above the top surface of the baffle, the two baffles approach each other through the second spring, which can push the cover shell to make it rise.

[0015] As a further solution of the present invention: the inner bottom wall of the liquid storage cylinder and the relatively close side of the two partition plates are provided with a third inclined surface, and the third inclined surface is designed in a V shape as a whole; when the second inclined surface of the cover shell moves to above the baffle, the two partition plates approach each other through the first spring, and the third inclined surface can push the cover shell to rise.

[0016] As a further solution of the present invention: slopes with height differences are formed between the front and rear sides of the partition plate, between the front and rear sides of the third inclined surface, and between the front and rear sides of the inner bottom wall of the liquid storage cylinder; when the accumulated liquid falls into the first cavity or the second cavity, the accumulated liquid can automatically converge to one side through the third inclined surface and the slope.

[0017] As a further solution of the present invention: a liquid outlet hole for discharging accumulated liquid is provided on the surface of the liquid storage cylinder, and the liquid outlet hole corresponds to a lower side position of the third inclined surface.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: through the cooperation among the cover shell, the second inclined surface, the liquid storage cylinder and the sliding assembly, the buoyancy of the accumulated liquid is utilized to make the cover shell automatically rise, and the automatic switching of the accumulated liquid to the first cavity and the second cavity is realized, so that the accumulated liquid in different time periods is automatically separated in the liquid storage cylinder, which is convenient for subsequent corresponding tests. At the same time, the switching of the cover shell between the first cavity and the second cavity can be realized quickly, and the cover shell will not stay between the sliding assemblies for a long time, so that the accumulated liquid will not accumulate on the sliding assemblies, which can effectively avoid the confusion of the accumulated liquid in different time periods, and can effectively reduce the connection time between the first cavity and the second cavity, which can further ensure the accuracy of the test results, and the overall practicality is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the liquid storage cylinder of the present invention; Figure 3 It is a schematic diagram of the structure of the partition plate and the baffle plate of the present invention; Figure 4 It is a schematic diagram of the structure of the cover shell, the first inclined plane and the second inclined plane of the present invention; Figure 5 It is a schematic diagram of the cover shell and baffle structure of the present invention; Figure 6 It is a schematic diagram of the third inclined surface and the liquid outlet structure of the present invention; Figure 7 for Figure 6 A magnified view of the structure at center; Figure 8 It is a schematic diagram of the structure of the chute and the partition plate of the present invention; Fig. 9 It is a schematic diagram of the structure of the partition plate and the third inclined plane of the present invention; Fig.10 for Fig. 9 Enlarged view of the structure at point B in the middle.

[0020] In the figure: 1, liquid storage cylinder; 2, puncture drainage module; 3, drainage assembly; 4, sliding assembly; 5, third inclined plane; 6, liquid outlet; 7, slope; 101, slide groove; 102, first cavity; 103, second cavity; 301, branch pipe; 302, telescopic tube; 303, cover shell; 304, first inclined plane; 305, second inclined plane; 401, partition plate; 402, first spring; 403, baffle; 404, second spring; 405, lower inclined plane; 406, semicircular hole; 407, guide edge. DETAILED DESCRIPTION Example

[0021] See also Figures 1 to 5 The embodiment of the present invention provides a drainage puncture device for internal medicine, which is mainly used to realize the rapid switching of the cover 303 between the first cavity 102 and the second cavity 103. The device includes a puncture drainage module 2, a drainage component 3 connected to the puncture drainage module 2 and a liquid storage cylinder 1 for receiving the accumulated fluid. The puncture drainage module 2 can be inserted into the patient's lesion and connected to the drainage component 3 for discharging the accumulated fluid. It is an existing mature technology and will not be described in detail here; and the drainage component 3 is inserted into the liquid storage cylinder 1 to transport the accumulated fluid discharged by the puncture drainage module 2 to the liquid storage cylinder 1.

[0022] Furthermore, a sliding assembly 4 that is movably fitted with the liquid discharge assembly 3 is provided inside the liquid storage cylinder 1, and a first cavity 102 and a second cavity 103 are formed inside the liquid storage cylinder 1 through the sliding assembly 4, and the first cavity 102 is located below the second cavity 103. The liquid discharge assembly 3 includes a cover 303 and a second inclined surface 305 provided on the cover 303. When the cover 303 rises in the liquid storage cylinder 1 due to buoyancy, the cover 303 can be quickly moved from the first cavity 102 to the second cavity 103 through the second inclined surface 305 and the sliding assembly 4, thereby reducing the circulation time between the first cavity 102 and the second cavity 103.

[0023] Reference Figure 2 and Figure 4In this embodiment, preferably, the liquid discharge assembly 3 further includes a branch pipe 301 that is slidably matched with the liquid storage cylinder 1, the bottom of the branch pipe 301 is connected to the cover 303, and the top thereof is connected to a telescopic tube 302 that is fixedly connected to the puncture drainage module 2. The accumulated fluid transported by the puncture drainage module 2 can flow into the liquid storage cylinder 1 through the telescopic tube 302, the branch pipe 301 and the cover 303. When the amount of accumulated fluid in the liquid storage cylinder 1 increases, the cover 303 will rise in the liquid storage cylinder 1. Due to the up and down sliding of the branch pipe 301 and the liquid storage cylinder 1, the cover 303 can form a vertical rise along the liquid storage cylinder 1.

[0024] In the above structure, the second inclined surfaces 305 are symmetrically arranged on both sides of the cover 303, and the whole is in an inverted figure eight state. When the cover 303 rises vertically, the sliding assembly 4 can be opened first and then automatically closed, and when the sliding assembly 4 contacts the second inclined surface 305, the cover 303 can be pushed to rise faster, so that it can quickly move from the first cavity 102 to the second cavity 103, and the sliding assembly 4 can also be quickly and automatically closed.

[0025] Furthermore, first inclined surfaces 304 may be provided on both sides of the cover 303. At this time, the two first inclined surfaces 304 are in an eight-shaped state as a whole, and the first inclined surface 304 and the second inclined surface 305 are arranged to intersect, so that when the cover 303 rises, it can first contact the first inclined surface 304, and then contact the second inclined surface 305. The first inclined surface 304 can delay the contact time between the cover 303 and the sliding component 4, so that more accumulated fluid can be received in the first cavity 102 without affecting the movement of the sliding component 4.

[0026] Reference Figures 2 to 5 In this embodiment, preferably, the sliding assembly 4 includes two partition plates 401 that are slidably matched with the liquid storage cylinder 1. Correspondingly, the inner walls on both sides of the liquid storage cylinder 1 are provided with sliding grooves 101 to allow the partition plates 401 to slide left and right. A first spring 402 is fixedly installed between one side of the partition plate 401 and the inner side wall of the liquid storage cylinder 1. Under the action of the first spring 402, the two partition plates 401 have a tendency to approach each other. A semicircular hole 406 that is movably fitted with the branch pipe 301 is provided on the other side of the partition plate 401. The two partition plates 401 are fitted so that the semicircular holes 406 are combined to form a circular hole, which can be used for the placement and up and down sliding of the branch pipe 301.

[0027] The other side of the partition plate 401 is elastically connected to a baffle plate 403 for closing the semicircular hole 406 through a second spring 404. When the branch pipe 301 is separated from the partition plate 401, the baffle plate 403 can move toward the other partition plate 401 under the action of the second spring 404, so that the two baffle plates 403 also abut against each other to block the semicircular hole 406. When the two partition plates 401 are separated, the baffle plates 403 can continue to approach each other and protrude from the corresponding partition plate 401, but of course the protruding distance is relatively short.

[0028] Among them, the two partition plates 401 are each provided with a lower inclined surface 405 on the opposite side, and the two lower inclined surfaces 405 are designed in an overall figure eight shape. When the cover shell 303 rises and contacts the lower inclined surface 405, the two partition plates 401 can be pushed to separate to both sides and squeeze the first spring 402. At this time, even if the two baffles 403 are close to each other, they will be separated to both sides again under the action of the first inclined surface 304.

[0029] Further, such as Figure 5 As shown, when the intersection of the first inclined surface 304 and the second inclined surface 305 is in contact with the bottom surface of the baffle 403, the bottom surface of the housing 303 is lower than the bottom surface of the partition 401, and the accumulated liquid in the housing 303 can still be transported to the first cavity 102. When the intersection of the first inclined surface 304 and the second inclined surface 305 is located above the top surface of the baffle 403, the two baffles 403 are moved closer to each other under the action of the second spring 404, and the housing 303 can be pushed by the second inclined surface 305 to rise quickly, thereby shortening the residence time of the housing 303 between the two partitions 401.

[0030] In the above structure, when the intersection of the first inclined surface 304 and the second inclined surface 305 is in contact with the top surface of the baffle 403, the bottom surface of the cover shell 303 is preferably lower than the bottom surface of the partition plate 401, or flush with the bottom surface of the partition plate 401. At this time, the accumulated liquid in the cover shell 303 can still be transported into the first cavity 102; and after moving to above the top surface of the baffle 403, the cover shell 303 can quickly rise and separate from between the two partition plates 401, which can effectively reduce the possibility of accumulated liquid accumulating between the two partition plates 401.

[0031] When in use, the puncture drainage module 2 is inserted into the patient's lesion, and the accumulated fluid is transported to the first cavity 102 through the telescopic tube 302, the branch tube 301 and the cover 303. When the accumulated fluid in the first cavity 102 increases, the cover 303 can rise vertically along the liquid storage cylinder 1 under the action of buoyancy. When the first inclined surface 304 contacts the lower inclined surface 405, the two partition plates 401 can be pushed to separate to both sides until the intersection of the first inclined surface 304 and the second inclined surface 305 moves to the top of the baffle 403. During this process, the cover 303 still transports the accumulated fluid to the first cavity 102, and the accumulated fluid will not contact the partition plate 401; then the two baffle plates 403 approach each other under the action of the second spring 404, and the cover 303 is pushed to rise rapidly by the second inclined surface 305, passing between the two partition plates 401. When the cover shell 303 rises to above the partition plate 401, the cover shell 303 is transferred from the first cavity 102 to the second cavity 103, the first spring 402 causes the two partition plates 401 to close together, and the second spring 404 causes the two baffles 403 to close together. At this time, the accumulated liquid in the cover shell 303 is transferred to the second cavity 103.

[0032] In summary, through the coordination of the structures such as the cover shell 303, the second inclined surface 305, the baffle 403 and the partition plate 401, the cover shell 303 is automatically raised by utilizing the buoyancy of the accumulated liquid, and the automatic switching of the accumulated liquid to the first cavity 102 and the second cavity 103 is realized, so that the accumulated liquid in different time periods is automatically separated in the liquid storage cylinder 1, which is convenient for subsequent corresponding tests. At the same time, the switch of the cover shell 303 between the first cavity 102 and the second cavity 103 can be realized quickly, the cover shell 303 will not stay between the two partition plates 401 for a long time, and the accumulated liquid will not accumulate between the two partition plates 401, which can effectively avoid the confusion of the accumulated liquid in different time periods, and can effectively reduce the connection time between the first cavity 102 and the second cavity 103, which can further ensure the accuracy of the test results, and the overall practicality is higher. Example

[0033] See also Figures 1 to 8 On the basis of the first embodiment, considering the need for liquid discharge in the first cavity 102 and the second cavity 103, and the need for the cover 303 to descend and reset from the second cavity 103 to the first cavity 102, the partition plate 401 and the inner bottom wall of the liquid storage cylinder 1 are improved.

[0034] At this time, a third inclined surface 5 is provided on the relatively close side of the two partition plates 401 and the inner bottom wall of the liquid storage cylinder 1, and the third inclined surface 5 is in a V-shape as a whole; when the second inclined surface 305 of the cover shell 303 moves to the top of the baffle 403, the first spring 402 can make the partition plates 401 move closer to each other, and at this time the third inclined surface 5 can further accelerate the rise of the cover shell 303.

[0035] In the above structure, the front side of the partition plate 401 and the front side of the inner bottom wall of the liquid storage cylinder 1 can be higher than the rear side thereof, that is, a slope 7 with a certain height difference is formed, so that after the accumulated liquid falls into the first cavity 102 or the second cavity 103, the accumulated liquid can automatically gather to the rear side. Correspondingly, after the slope 7 is set, the third inclined surface 5 is also correspondingly adapted, that is, the two sides of the third inclined surface 5 also have a height difference. Of course, in actual use, it can also be set so that the front side is lower than the rear side, in which case the accumulated liquid can automatically gather to the front side.

[0036] Furthermore, the design adapted to the above-mentioned slope 7 can correspond to the opening of a liquid outlet 6 on the liquid storage cylinder 1, and the liquid outlet 6 corresponds to the third slope 5 on the partition plate 401 and the third slope 5 on the liquid storage cylinder 1 respectively. When the accumulated liquid is converged due to the third slope 5 and the slope 7, it can be automatically discharged through the liquid outlet 6 later.

[0037] In this embodiment, Figure 8As shown, due to the setting of the slope 7 on the partition plate 401, the slide groove 101 can also be adjusted accordingly to form a state with a height difference on both sides. At this time, the partition plate 401 can still slide left and right based on the slide groove 101, and the two do not interfere with each other.

[0038] When in use, the automatic switching of the effusion to the first cavity 102 and the second cavity 103 can be realized through the structures such as the housing 303, the second inclined surface 305 and the partition plate 401, and the switching can be realized quickly. The working process and effect of this part are the same as those in the first embodiment, and will not be repeated here. The difference is that when the second inclined surface 305 of the housing 303 moves to the top of the baffle 403, the second spring 404 makes the baffles 403 close to each other, and the contact between the baffle 403 and the second inclined surface 305 can accelerate the rise of the housing 303. At the same time, the first spring 402 can make the partition plate 401 close to each other, and the contact between the second inclined surface 305 and the third inclined surface 5 can further accelerate the rise of the housing 303. When the housing 303 is transporting the effusion in the first cavity 102 or the second cavity 103, the effusion can automatically converge to the lower side under the action of the slope 7, and can be quickly discharged through the liquid outlet 6 through the third inclined surface 5 in the later stage.

[0039] When the accumulated fluid is discharged, the cover 303 needs to be lowered from the second cavity 103 to the first cavity 102 to reset. At this time, the part of the branch pipe 301 exposed from the liquid storage cylinder 1 can be pushed to drive the cover 303 to descend. The two partitions 401 can be automatically separated by the third inclined surface 5 and the second inclined surface 305. At this time, the two baffles 403 can continue to move closer to each other and protrude from the partition 401 for a section, but the second inclined surface 305 can make the baffle 403 shrink into the partition 401, which will not affect the continued descent of the cover 303. After the intersection of the first inclined surface 304 and the second inclined surface 305 passes over the bottom surface of the baffle 403, the baffle 403 can protrude from the partition 401 and contact the first inclined surface 304. The cooperation between the two can accelerate the descent of the cover 303, so that the cover 303 quickly passes between the two partitions 401 and enters the first cavity 102.

[0040] Compared with the first embodiment, the coordination of the structures such as the partition plate 401, the baffle plate 403, the third inclined plane 5 and the first inclined plane 304 can realize the convergence of the accumulated liquid to the front side / rear side and facilitate the subsequent discharge of the liquid outlet 6, and the coordination of the third inclined plane 5 and the second inclined plane 305 is also conducive to the lowering and resetting of the cover 303 into the first cavity 102, and the coordination of the first inclined plane 304 and the baffle plate 403 can accelerate the lowering of the cover 303 into the first cavity 102, so that the first inclined plane 304, the second inclined plane 305 and the third inclined plane 5 can all achieve the purpose of multi-function. The overall solution is combined with the arrangement of the partition plate 401 and the liquid storage cylinder 1, and there is no need to equip the liquid storage cylinder 1 with an openable and closable door panel, nor is there any need to manually move the two partition plates 401 to provide space. The lowering and resetting of the cover 303 can be realized by simply pressing down the branch pipe 301, which is more applicable. Example

[0041] See also Figures 1 to 10 On the basis of the second embodiment, considering that the semicircular hole 406 is opened, even with the auxiliary drainage of the third inclined surface 5, part of the accumulated fluid still remains in the semicircular hole 406, and thus the accumulated fluid cannot be effectively discharged from the liquid outlet 6, which has certain limitations in use.

[0042] To this end, the semicircular hole 406 is improved: in this case, both the front and rear sides of the semicircular hole 406 can be provided with guide edges 407, and the accumulated liquid in the semicircular hole 406 can flow out of the semicircular hole 406 through the third inclined surface 5 and the guide edge 407. In this embodiment, the baffle 403 can also be adapted and improved corresponding to the slope 7 to facilitate the discharge of the accumulated liquid from the semicircular hole 406.

[0043] When in use, the automatic switching of the effusion to the first cavity 102 and the second cavity 103 can be realized through the structures such as the cover 303, the second inclined surface 305 and the partition plate 401, and the switching can be realized quickly; the effusion can be gathered and discharged easily through the structures such as the partition plate 401, the baffle 403 and the third inclined surface 5, and it is conducive to the lowering and resetting of the cover 303 into the first cavity 102. The working process and effect of this part are the same as those in the second embodiment, and will not be repeated here. The difference is that when part of the effusion is in the semicircular hole 406, the cooperation of the third inclined surface 5 and the guide edge 407 allows the effusion to flow out of the semicircular hole 406 and finally be discharged from the liquid outlet 6.

[0044] Compared with the second embodiment, the cooperation of the semicircular hole 406, the baffle 403, the slope 7 and the third inclined surface 5 can prevent the accumulated liquid from being retained in the semicircular hole 406, and can achieve effective discharge of the accumulated liquid from the liquid outlet 6, and can also prevent part of the accumulated liquid from falling into the first cavity 102 after the subsequent cover 303 is lowered, so as to ensure the long-term use effect of the liquid storage cylinder 1. The overall solution is combined with the setting of the semicircular hole 406, and the guidance of the third inclined surface 5 and the slope 7 is more conducive to the discharge of the accumulated liquid, meeting more requirements in actual use.

Claims

1. A drainage puncture device for internal medicine, comprising a puncture drainage module and a liquid storage cylinder, characterized in that: The liquid storage cylinder is provided with a drainage component connected to the puncture drainage module, and the liquid storage cylinder is provided with a sliding component movably fitted with the drainage component. The interior of the liquid storage cylinder is formed with a first cavity and a second cavity distributed up and down by the sliding component. The drainage component includes a cover shell and a second inclined surface opened on the cover shell; through the second inclined surface and the sliding component, the cover shell can be quickly switched from the first cavity to the second cavity.

2. The internal medicine drainage puncture device according to claim 1, characterized in that: The liquid discharge assembly also includes a branch pipe that slides with the liquid storage cylinder. The bottom of the branch pipe is connected to the cover shell, and the top of the branch pipe is connected to a telescopic tube that is fixedly connected to the puncture drainage module. Both sides of the cover shell are provided with a first inclined surface, and the first inclined surface is arranged to intersect with the second inclined surface.

3. The internal medicine drainage puncture device according to claim 2, characterized in that: The number of the second inclined surfaces is two and they are symmetrically arranged on both sides of the housing. The two second inclined surfaces are designed in an inverted figure eight shape as a whole, and the two first inclined surfaces are designed in an figure eight shape as a whole.

4. The internal medicine drainage puncture device according to claim 2, characterized in that: The sliding assembly includes two partition plates that slide with the liquid storage cylinder, a first spring is fixedly installed between one side of the partition plate and the inner wall of the liquid storage cylinder, a semicircular hole that movably fits with the branch pipe is opened on the other side of the partition plate, and a baffle for closing the semicircular hole is elastically connected to the other side of the partition plate through a second spring; lower inclined surfaces are opened on the opposite sides of the two partition plates, and the two lower inclined surfaces are designed in an eight-shaped shape as a whole.

5. The internal medicine drainage puncture device according to claim 4, characterized in that: The inner walls on both sides of the liquid storage cylinder are provided with sliding grooves for the partition plates to slide, and the first spring is arranged in the sliding groove, so that the two partition plates tend to approach each other through the first spring.

6. The internal medicine drainage puncture device according to claim 4, characterized in that: When the two partition plates are relatively far away from each other, the baffle plate can slide along the partition plates through the second spring, form a relative protrusion based on the partition plates, and contact the second inclined surface of the cover shell.

7. The internal medicine drainage puncture device according to claim 6, characterized in that: When the intersection of the first and second inclined surfaces corresponds to and contacts the bottom surface of the baffle, the bottom surface of the cover shell is lower than the bottom surface of the partition plate; when the intersection of the first and second inclined surfaces is located above the top surface of the baffle, the two baffles approach each other through the second spring, which can push the cover shell to rise.

8. The medical drainage puncture device according to any one of claims 4 to 7, characterized in that: The inner bottom wall of the liquid storage cylinder and the relatively close side of the two partition plates are both provided with a third inclined surface, and the third inclined surface is designed in a V shape as a whole; when the second inclined surface of the cover shell moves to above the baffle, the two partition plates approach each other through the first spring, and the third inclined surface can push the cover shell up.

9. The internal medicine drainage puncture device according to claim 8, characterized in that: Slopes with height differences are formed between the front and rear sides of the partition plate, between the front and rear sides of the third inclined surface, and between the front and rear sides of the inner bottom wall of the liquid storage cylinder; when the accumulated liquid falls into the first cavity or the second cavity, the accumulated liquid can automatically converge to one side through the third inclined surface and the slope.

10. The internal medicine drainage puncture device according to claim 9, characterized in that: A liquid outlet hole for discharging accumulated liquid is provided on the surface of the liquid storage cylinder, and the liquid outlet hole corresponds to a lower side position of the third inclined surface.

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