Excrement collecting device suitable for patient with catheter inserted therein and nursing robot

Abstract

The utility model provides an excrement collecting device suitable for a patient with a catheter inserted therein and a corresponding nursing robot, the excrement collecting device can be worn on the lower body of the patient, and the excrement collecting device comprises a urinal for receiving excrement excreted by the patient; the flexible sealing gasket can play a sealing role between the lower body of the patient and the excrement collecting device worn on the lower body of the patient, and a first frame opening for excretion of the patient is defined by the flexible sealing gasket; a catheter can penetrate through the catheter limiting piece, and in the state that the excrement collecting device is worn on the lower body of the patient, the catheter limiting piece can be clamped between the flexible sealing gasket of the excrement collecting device and the lower body of the patient so as to limit the catheter penetrating through the catheter limiting piece; and the catheter limiting piece is flexible and deformable. Based on the technical scheme of the design, the use experience of the excrement collecting device on a patient with a catheter is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a stool collecting device for a patient with a urinary catheter and a nursing robot. BACKGROUND

[0002] The nursing machine (also known as a nursing robot or a defecation nursing machine) is a kind of existing stool and urine treatment device. The nursing machine can automatically start suction and cleaning after detecting the excretion of a patient (usually a bedridden patient) based on its stool and urine sensors, thereby solving the patient's stool and urine problems and reducing the burden on caregivers / family members. The nursing machine is more intelligent and convenient, and is increasingly popular and selected by patients. The nursing machine usually includes a main machine, a stool collecting device, a sewage suction pipeline connected between the main machine and the stool collecting device, a water supply pipeline connected between the main machine and the stool collecting device, etc. The main machine includes a negative pressure source for sucking excrement, a sewage tank for storing excrement sucked by the negative pressure source, and a clean water tank containing clean water. The stool collecting device is worn on the lower body of the patient to receive the excrement of the patient. The stool collecting device includes a panty piece for wearing on the lower body of the patient and a stool collector. The stool collector is indirectly worn on the patient through the panty piece and includes a stool pool for containing the excrement of the patient and a stool and urine sensor. Under the suction of the negative pressure source, the excrement of the patient discharged into the stool pool is sucked into the sewage tank through the sewage suction pipeline. To prevent leakage of stool and urine and sewage formed after flushing the stool pool, the human excretion site, and the excrement, the stool collecting device usually has a flexible sealing gasket. The flexible sealing gasket is used to tightly fit the skin around the excretion site of the bedridden patient to play a sealing role between the patient and the stool collecting device, preventing stool and urine and sewage formed after flushing the stool pool from leaking between the flexible sealing gasket and the human body. When the stool collecting device is used for a patient with a urinary catheter, the position of the urinary catheter is very unstable, and the sealing between the stool collecting device and the lower body of the patient is poor due to the presence of the urinary catheter, which can cause the excrement of the patient and the sewage after flushing to leak. In summary, the use experience of the stool collecting device of the existing nursing machine for a patient with a urinary catheter needs to be improved. UTILITARIAN CONTENT

[0003] The present application provides a stool collecting device for improving the use experience of a patient with a urinary catheter.

[0004] The present patent application provides a stool collecting device suitable for a patient who is inserted with a urinary catheter, which can be worn on the lower body of the patient, comprising: a stool pool, which can receive the stool excreted by the patient; a flexible sealing gasket, which can play a sealing role between the lower body of the patient and the stool collecting device worn on the lower body of the patient, and the flexible sealing gasket surrounds a first frame opening for the patient to excrete; a urinary catheter limiting piece, which can be penetrated by a urinary catheter, and in the state that the stool collecting device is worn on the lower body of the patient, the urinary catheter limiting piece can be clamped between the flexible sealing gasket of the stool collecting device and the lower body of the patient to limit the urinary catheter penetrating the urinary catheter limiting piece; and the urinary catheter limiting piece is flexible and deformable.

[0005] Optionally, the urinary catheter limiting piece is provided with a urinary catheter hole, and the urinary catheter can penetrate the urinary catheter limiting piece through the urinary catheter hole, and when the urinary catheter limiting piece penetrated by the urinary catheter is clamped between the flexible sealing gasket of the stool collecting device worn on the lower body of the patient and the lower body of the patient, the urinary catheter penetrating the urinary catheter limiting piece through the urinary catheter hole is limited by the urinary catheter limiting piece and extends through the flexible sealing gasket and the lower body of the patient.

[0006] Optionally, the urinary catheter limiting piece is one of an inflatable piece, a rubber piece, and a gel piece.

[0007] Optionally, the urinary catheter limiting piece is provided with a urinary catheter hole, and the urinary catheter can penetrate the urinary catheter limiting piece through the urinary catheter hole, and the urinary catheter hole can be interference-fitted with the part of the urinary catheter penetrating the urinary catheter hole.

[0008] Optionally, the urinary catheter limiting piece is provided with a urinary catheter hole, and the urinary catheter can penetrate the urinary catheter limiting piece through the urinary catheter hole, and the urinary catheter limiting piece is further provided with a mounting slit, the mounting slit is directly connected with the urinary catheter hole, the mounting slit is located on the radial outer side of the urinary catheter hole, and the urinary catheter can expand the mounting slit to embed the urinary catheter into the urinary catheter hole through the mounting slit, and correspondingly, the urinary catheter can expand the mounting slit to separate the urinary catheter from the urinary catheter hole through the mounting slit.

[0009] Optionally, the mounting slit is a closed and expandable slit.

[0010] Optionally, the urethral catheter hole comprises a first port, a second port, and a gap, the first port and the second port are located at opposite ends of the urethral catheter hole, the first port is located at one side of the urethral catheter limiting piece, and the second port is located at the opposite side of the urethral catheter limiting piece; the gap is located at the radial outside of the urethral catheter hole, the gap is located between the first port and the second port, the gap divides the mounting seam into a first part and a second part which are spaced apart at opposite sides of the gap, the first part of the mounting seam connects the first port and the gap, the second part of the mounting seam connects the second port and the gap, the first part of the mounting seam extends from the gap to the one side of the urethral catheter limiting piece, and the second part of the mounting seam extends from the gap to the opposite side of the urethral catheter limiting piece.

[0011] Optionally, the urethral catheter limiting piece further comprises a limiting groove corresponding to the flexible sealing gasket, a surface of the limiting groove is provided for abutting against the flexible sealing gasket, the flexible sealing gasket can be partially embedded in the limiting groove and partially abut against the surface of the limiting groove, and the limiting groove is directly communicated with the urethral catheter hole through the gap; the first part of the mounting seam and the second part of the mounting seam are both closed and expandable slits.

[0012] Optionally, the urethral catheter limiting piece further comprises a limiting groove, a first limiting protruding part, and a second limiting protruding part, the limiting groove is formed between the first limiting protruding part and the second limiting protruding part, the first limiting protruding part and the second limiting protruding part are located at opposite sides of the urethral catheter limiting piece, and a surface of the limiting groove is provided for abutting against the flexible sealing gasket; the flexible sealing gasket can be partially embedded in the limiting groove and partially abut against the surface of the limiting groove, the flexible sealing gasket can be partially embedded in the limiting groove so that one of the first limiting protruding part and the second limiting protruding part is located at the edge of the first port, and the other of the first limiting protruding part and the second limiting protruding part is away from the first port relative to the one of the first limiting protruding part and the second limiting protruding part, the first limiting protruding part can block one side of the part of the flexible sealing gasket embedded in the limiting groove, and the second limiting protruding part can block the opposite side of the part of the flexible sealing gasket embedded in the limiting groove.

[0013] Optionally, when the catheter limiting member is clamped between the flexible sealing gasket of the excrement collecting device worn on the lower body of the patient and the lower body of the patient, the portion of the flexible sealing gasket embedded in the limiting groove is deformed in mutual adaptability with the catheter limiting member; the one side of the portion of the flexible sealing gasket embedded in the limiting groove and the opposite side of the portion of the flexible sealing gasket embedded in the limiting groove constitute opposite sides of the portion of the flexible sealing gasket embedded in the limiting groove in the length direction of the catheter perforation.

[0014] Optionally, the catheter limiting member further comprises a human body abutting surface, when the catheter limiting member is clamped between the flexible sealing gasket of the excrement collecting device worn on the lower body of the patient and the lower body of the patient, the human body abutting surface is used for abutting to the lower body of the patient; the surface of the limiting groove and the human body abutting surface are located on opposite sides of the catheter limiting member, and the catheter perforation is located between the surface of the limiting groove and the human body abutting surface.

[0015] Optionally, the excrement collecting device comprises a pant member for being worn on the lower body of the patient and an excrement collector which is detachably connected with the pant member, the flexible sealing gasket belongs to a part of the pant member, the excrement collector belongs to a part of the excrement collector, the pant member further comprises an upper sheet, a lower sheet, a connecting portion, and an open crotch, the connecting portion connects the upper sheet and the lower sheet, the open crotch is at least partially provided on the connecting portion, the flexible sealing gasket is at least partially arranged on the connecting portion, the flexible sealing gasket extends along the edge of the open crotch to form a ring shape, and the first frame opening and the open crotch are overlapped together; the catheter limiting member is provided with a catheter perforation, when the catheter limiting member penetrated by the catheter is clamped between the flexible sealing gasket of the pant member worn on the lower body of the patient and the lower body of the patient, the catheter penetrating the catheter limiting member through the catheter perforation is limited by the catheter limiting member and extends through the flexible sealing gasket and the lower body of the patient.

[0016] Optionally, the excrement collecting device comprises a pant member for being worn on the lower body of the patient and an excrement collector, the flexible sealing gasket belongs to a part of the pant member, the excrement collector belongs to a part of the excrement collector, the pant member further comprises a connecting support which is detachably connected with the excrement collector, the connecting support surrounds a second frame opening for human excretion, the connecting support is located outside the crotch portion of the pant member, and the flexible sealing gasket is located inside the crotch portion of the pant member.

[0017] Optionally, the package pants further comprise an open crotch, and the first frame, the open crotch, and the second frame are sequentially arranged from the inner side of the package pants to the outer side; the excrement collecting device comprises a bottom plate part, a rear seat part, and at least one water jet head for water jetting, the bottom plate part extends forward from the rear seat part, and a toilet bowl is recessed in the bottom plate part; the rear seat part extends upward and is higher than the bottom plate part; in the state that the connecting support and the excrement collecting device are connected and docked together, the connecting support is attached to the bottom plate part and the rear seat part.

[0018] Optionally, the excrement collecting device comprises package pants, the package pants are wearable on the lower body of a patient, the flexible sealing gasket is part of the package pants, the flexible sealing gasket is an inflatable gasket, the package pants further comprise an inflatable waist pad and a communication pipeline, the communication pipeline is used for fluid communication between the inflatable waist pad and the flexible sealing gasket, and the inflatable waist pad and the flexible sealing gasket are kept in a state of fluid communication through the communication pipeline.

[0019] Optionally, the package pants have left and right communication pipelines, the inflatable waist pad is inflated and deflated through the flexible sealing gasket, the communication pipeline comprises a gas conveying hose, a first gas conveying connector, and a second gas conveying connector, the gas conveying hose connects the first gas conveying connector and the second gas conveying connector, the first gas conveying connector is combined with the flexible sealing gasket, and the first gas conveying connector directly communicates with the flexible sealing gasket; the second gas conveying connector is combined with the inflatable waist pad, and the second gas conveying connector directly communicates with the inflatable waist pad; the first gas conveying connector is at least partially located in the flexible sealing gasket, the second gas conveying connector is at least partially located in the inflatable waist pad, the first gas conveying connector comprises a first gas nozzle, the second gas conveying connector comprises a second gas nozzle, one end of the gas conveying hose is sleeved on the first gas nozzle, and the opposite end of the gas conveying hose is sleeved on the second gas nozzle.

[0020] Optionally, the inflatable waist pad comprises an inner sheet, an outer sheet, and a plurality of connecting belts, an inner space of the inflatable waist pad is formed between the inner sheet and the outer sheet, after the package pants are worn on the lower body of a patient, the outer sheet is located between the waist of the patient and the inner sheet, the connecting belts are formed on the inner sheet and the outer sheet, and the connecting belts pull the inner sheet and the outer sheet after the inflatable waist pad is inflated.

[0021] Optionally, the connecting belts are formed by hot pressing a part of the inner sheet and a part of the outer sheet together; the outer sheet is composed of a TPU layer, and the inner sheet is composed of a cloth layer and a TPU layer which are stacked together.

[0022] The patent application also provides a defecation collecting device suitable for a patient with a catheter, which can be worn on the lower body of the patient, comprising: a defecation collector, a bag piece, and a catheter limiting piece. The defecation collector comprises a defecation pool for receiving the excrement of the patient. The bag piece can be worn on the lower body of the patient and comprises a flexible sealing gasket, which can seal between the lower body of the patient and the bag piece worn on the lower body of the patient. The flexible sealing gasket surrounds a first frame opening for the patient to excrete. The defecation collector can be detachably connected with the bag piece. The catheter limiting piece can be penetrated by the catheter. In the state that the bag piece is worn on the lower body of the patient, the catheter limiting piece can be clamped between the flexible sealing gasket of the bag piece and the lower body of the patient to limit the catheter penetrating the catheter limiting piece. The catheter limiting piece is flexible and deformable.

[0023] The patent application also provides a nursing robot suitable for a patient with a catheter, comprising the defecation collecting device suitable for a patient with a catheter.

[0024] Optionally, the nursing robot further comprises a main machine and a sewage suction pipeline connected between the defecation collecting device and the main machine. The main machine comprises a negative pressure source for sucking human excrement. The negative pressure source can suck the human excrement collected in the defecation pool through the sewage suction pipeline.

[0025] Based on the design, when the defecation collecting device is worn on the lower body of the patient, the catheter limiting piece is clamped between the flexible sealing gasket of the defecation collecting device worn on the lower body of the patient and the lower body of the patient, so that the catheter limiting piece is limited, and the catheter penetrating the catheter limiting piece is also limited, and the catheter inserted into the genital organ of the patient is regularized to a certain extent. The catheter limiting piece is flexible and deformable, which is beneficial to adaptive deformation of the catheter limiting piece under the clamping force of the flexible sealing gasket and the lower body of the patient, better adhesion of the flexible sealing gasket and the lower body of the patient, inhibition of the gap between the flexible sealing gasket and the lower body of the patient caused by the catheter and the catheter limiting piece, inhibition of the generation of the leakage gap, and indirect inhibition of the leakage of human excrement and sewage formed after flushing the human excrement. In summary, the technical solution based on the design can improve the use experience of the defecation collecting device for the patient with the catheter. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic view of the defecation collecting device of the patent application worn on the lower body of the patient (the defecation collecting device is connected with various pipelines, etc., and the patient is inserted with a catheter);

[0027] Figure 2 It is a perspective view of the defecation collecting device of the patent application;

[0028] Figure 3 An exploded view of the feces collection device of this patent application;

[0029] Figure 4 A three-dimensional diagram of the feces collection device of this patent application showing the pants-covering member, the urinary catheter retaining member, and the urinary catheter together (a portion of the flexible sealing gasket is embedded in the urinary catheter retaining member and the urinary catheter passes through the urinary catheter retaining member);

[0030] Figure 5 This is a schematic diagram of the front view of the trouser cover member of the trouser cover device of the present patent application in the unfolded state (the cover body and the connecting bracket are not shown);

[0031] Figure 6 This is a schematic diagram of the back side of the trousers cover member of the trousers cover device of the present patent application in the unfolded state (the cover body and the connecting bracket are not shown);

[0032] Figure 7 A three-dimensional diagram of a toilet bowl of the pants-covering device of this patent application;

[0033] Figure 8 A three-dimensional diagram of the urinary catheter stopper of the pants-covering device of this patent application;

[0034] Figure 9 Another perspective view of the urinary catheter stopper of the pants-covering device of this patent application;

[0035] Figure 10 Another perspective view of the urinary catheter stopper of the pants-covering device of this patent application;

[0036] Figure 11 A three-dimensional diagram of the main unit of the nursing robot of this patent application (the main unit is connected to various pipelines, etc.);

[0037] Figure 12 Another perspective view of the main body of the nursing robot of this patent application (part of the main body housing is removed);

[0038] Figure 13 This is a schematic diagram of the back side of the flexible sealing gasket and the inflatable waist pad of the trouser covering device of this patent application in the unfolded state (the flexible sealing gasket and the inflatable waist pad are connected by a connecting pipe). [Specific implementation method]

[0039] Ginseng Figures 1 to 13 The present application shows a feces collecting device 10 for a patient with a urinary catheter 16 and a corresponding nursing robot for a patient with a urinary catheter 16. The feces collecting device 10 can be worn on the patient's lower body 17 (see FIG. Figure 1As shown in the drawings, the set of devices includes a toilet bowl 300, a flexible sealing gasket 20, and a catheter limiting member 4. The toilet bowl 300 is configured to receive human excreta. Further, the toilet bowl 300 is configured to receive excrement excreted by a patient. The flexible sealing gasket 20 is configured to seal between the patient's lower body 17 and the set of devices 10 worn on the patient's lower body 17 to prevent leakage of human excreta and sewage formed after flushing the toilet bowl 300, human excreta, and the human excretion site. The flexible sealing gasket 20 forms a first frame opening 200 configured to be used by the patient for excretion. The catheter limiting member 4 is configured to be penetrated by a catheter 16. In the state in which the set of devices 10 is worn on the patient's lower body, the catheter limiting member 4 is clamped between the flexible sealing gasket 20 of the set of devices 10 and the patient's lower body 17 to limit the catheter 16 penetrating the catheter limiting member 4. The catheter limiting member 4 is flexible and deformable. The catheter limiting member 4 is provided with a catheter penetration hole 40 penetrating through opposite sides of the catheter limiting member 4. The catheter 16 can penetrate the catheter limiting member 4 through the catheter penetration hole 40. When the catheter limiting member 4 is clamped between the flexible sealing gasket 20 of the set of devices 10 worn on the patient's lower body 17 and the patient's lower body 17, the catheter 16 can penetrate the catheter limiting member 4 through the catheter penetration hole 40 and pass between the flexible sealing gasket 20 and the patient's lower body 17. More specifically, when the catheter limiting member 4 penetrated by the catheter 16 is clamped between the flexible sealing gasket 20 of the set of devices 10 worn on the patient's lower body 17 and the patient's lower body 17, the catheter 16 penetrating the catheter limiting member 4 through the catheter penetration hole 40 is limited by the catheter limiting member 17 and extends between the flexible sealing gasket 20 and the patient's lower body 17. At this time, opposite ends of the catheter 16 can be in a state in which one end of the catheter 16 is inserted into the patient's genital organ and the opposite end of the catheter 16 is located in the set of devices 10 and connected to a urine bag. At this time, the clamping force applied to the catheter limiting member 17 is transmitted to the portion of the catheter 16 penetrating the catheter limiting member 4, and the portion of the catheter 16 is clamped and limited. In short, the catheter 16 can pass between the flexible sealing gasket 20 and the patient's lower body 17 through the catheter penetration hole 40.

[0040] Based on the design, when the catheter limiting piece 4 is clamped between the flexible sealing gasket 20 of the excrement collecting device 10 worn on the lower body 17 of the patient and the lower body 17 of the patient, the catheter limiting piece 4 is limited, prompting the catheter 16 passing through the catheter limiting piece 4 to be limited accordingly, prompting the wiring of the catheter 16 to be regularized to a certain extent; the catheter limiting piece 4 is flexible and deformable, which is beneficial to the adaptive deformation of the catheter limiting piece 4 under the clamping force of the flexible sealing gasket 20 and the lower body 17 of the patient to better fit the flexible sealing gasket 20 and the lower body 17 of the patient, thereby being beneficial to inhibiting the generation of a larger gap between the flexible sealing gasket 20 and the lower body 17 of the patient due to the existence of the catheter 16 and the catheter limiting piece 4, inhibiting the generation of the gap, indirectly playing a role in inhibiting the occurrence of human excrement and sewage formed after flushing. In summary, the technical scheme based on the design can improve the use experience of the excrement collecting device 10 for the patient with the catheter 16 inserted.

[0041] The catheter limiting piece 4 can be one of an inflatable piece, a rubber piece, and a gel piece, and the above materials promote better deformability of the catheter limiting piece 4. The flexible sealing gasket 20 can be an inflatable gasket, a rubber gasket, a gel gasket, etc.

[0042] The catheter limiting piece 4 can be one of an inflatable piece, a rubber piece, and a gel piece, and the above materials promote better deformability of the catheter limiting piece 4. The flexible sealing gasket 20 can be an inflatable gasket, a rubber gasket, a gel gasket, etc.

[0043] The catheter limiting piece 4 is further provided with a mounting slit 41, the mounting slit 41 is directly connected with the catheter limiting piece 40, the mounting slit 41 is located on the radial outer side of the catheter limiting piece 40, and the catheter 16 can be expanded to embed the catheter limiting piece 40 through the mounting slit 41. Correspondingly, the catheter 16 can be expanded to separate from the catheter limiting piece 40 through the mounting slit 41. Such a design facilitates the combination and separation of the catheter 16 and the catheter limiting piece 4. In the embodiment, the mounting slit 41 is a closed and expandable slit, thereby being beneficial to avoiding leakage of excrement and sewage formed after flushing from the mounting slit 41 itself. In the embodiment, the mounting slit 41 is still closed in the state that the catheter 16 is embedded in the catheter limiting piece 40.

[0044] The catheter perforation 40 includes a first port 400, a second port 401, and a notch 402. The first port 400 and the second port 401 are located at opposite ends of the catheter perforation 40. The first port 400 is located on one side of the catheter stopper 4, and the second port 401 is located on the opposite side of the catheter stopper 4. The notch 402 is located radially outward of the catheter perforation 40. The notch 402 is located between the first port 400 and the second port 401. The notch 402 divides the mounting seam 41 into two positions. The first portion 410 and the second portion 411 are spaced apart on opposite sides of the notch 402. The first portion 410 of the installation slit 41 connects the first port 400 to the notch 402, and the second portion 411 of the installation slit 41 connects the second port 401 to the notch 402. The first portion 410 of the installation slit 41 extends from the notch 402 to the one side of the catheter retainer 4, and the second portion 411 of the installation slit 41 extends from the notch 402 to the other side of the catheter retainer 4. The installation slit 41 can also be designed as a continuous, entire section extending from one side of the catheter retainer 4 to the other side of the catheter retainer 4. In this embodiment, the first portion 410 and the second portion 411 of the installation slit 41 are both closed and expandable slits.

[0045] The catheter stopper 4 is further provided with a limiting groove 42, which corresponds to the flexible sealing gasket 20 and is adapted to the flexible sealing gasket 20. The surface 420 of the limiting groove 42 is adapted to fit the flexible sealing gasket 20. The limiting groove 42 is directly connected to the catheter perforation 40 through the notch 402, and the notch 402 is located in the central area of ​​the limiting groove 42; the catheter stopper 4 also includes a first limiting protrusion 430 and a second limiting protrusion 431. The limiting groove 42 is formed between the first limiting protrusion 430 and the second limiting protrusion 431. The first limiting protrusion 430 and the second limiting protrusion 431 are located on opposite sides of the catheter stopper 4; the limiting groove 42 extends from the third side of the catheter stopper 4 to the fourth side of the catheter stopper 4, the third side is opposite to the fourth side, and the extension direction of the limiting groove 42 intersects with the extension direction of the catheter perforation 40; Figure 4As shown, the flexible sealing gasket 20 can be partially embedded in the limiting groove 42 and partially attached to the surface 420 of the limiting groove 42, the flexible sealing gasket 20 can be partially embedded in the limiting groove 42 so that one of the first limiting protruding part 430 and the second limiting protruding part 431 is located at the edge of the first frame opening 200 and the other of the first limiting protruding part 430 and the second limiting protruding part 431 is away from the first frame opening 200 relative to the one of the first limiting protruding part 430 and the second limiting protruding part 431, the first limiting protruding part 430 can block one side of the part of the flexible sealing gasket 20 embedded in the limiting groove 42 and the second limiting protruding part 431 can block the other side of the part of the flexible sealing gasket 20 embedded in the limiting groove 42. In this way, when the catheter limiting piece 4 is combined with the part of the flexible sealing gasket 20 embedded in the limiting groove 42 by the limiting groove 42, the movement of the catheter limiting piece 4 relative to the flexible sealing gasket 20 into or out of the first frame opening 200 is inhibited based on the blocking of the first limiting protruding part 430 and the second limiting protruding part 431. When the catheter limiting piece 4 is clamped between the flexible sealing gasket 20 of the feces collecting device 10 worn on the lower body 17 of the patient and the lower body 17 of the patient, the part of the flexible sealing gasket 20 embedded in the limiting groove 42 and the catheter limiting piece 4 are mutually deformed to facilitate the close sealing of the part of the flexible sealing gasket 20 embedded in the limiting groove 42 and the catheter limiting piece 4.

[0046] The first limiting protruding part 430 and the second limiting protruding part 431 in the embodiment can be stacked and used interchangeably.

[0047] The one side of the part of the flexible sealing gasket 20 embedded in the limiting groove 42 and the other side of the part of the flexible sealing gasket 20 embedded in the limiting groove 42 constitute opposite sides of the part of the flexible sealing gasket 20 embedded in the limiting groove 42 in the length direction of the catheter hole 40, which facilitates the position of the catheter limiting piece 4 relative to the flexible sealing gasket 20 not to be easily moved in the length direction of the catheter hole 40. The part of the flexible sealing gasket 20 embedded in the limiting groove 42 can be selected as needed.

[0048] The catheter limiting piece 4 further comprises a human body abutting surface 44, when the catheter limiting piece 4 is clamped between the flexible sealing gasket 20 of the feces collecting device 10 worn on the lower body 17 of the patient and the lower body 17 of the patient, the human body abutting surface 44 is used to abut the lower body 17 of the patient; the surface 420 of the limiting groove 42 and the human body abutting surface 44 are located on opposite sides of the catheter limiting piece 4, and the catheter hole 40 is located between the surface 420 of the limiting groove 42 and the human body abutting surface 44. The surface 420 of the limiting groove 42 is curved.

[0049] The collecting device 10 comprises a pant 2 which can be worn on the lower body 17 of a patient, a collecting container 3 which can be detachably connected to the pant 2, a flexible sealing gasket 20 which belongs to a part of the pant 2, and a toilet bowl 300 which belongs to a part of the collecting container 3. The pant 2 is used to be worn on the lower body 17 of a patient, and the collecting device is worn on the lower body 17 of a patient by means of the pant 2, and the collecting container 3 is indirectly worn on the lower body 17 of a patient by being connected to the pant 2. The pant 2 further comprises an upper pant sheet 21, a lower pant sheet 22, a connecting portion 23, and an open crotch 24. The connecting portion 23 connects the upper pant sheet 21 and the lower pant sheet 22, and the open crotch 24 is at least partially provided in the connecting portion 23. The flexible sealing gasket 20 is at least partially provided on the connecting portion 23, and extends along the edge of the open crotch 24 to form a ring shape. The first frame opening 200 is superimposed with the open crotch 24. For the pant 2 which can be worn on the lower body 17 of a patient: the flexible sealing gasket 20 can be used to seal between the lower body 17 of a patient and the pant 2 worn on the lower body 17 of a patient, so as to prevent human excreta and sewage from leaking; in the state that the pant 2 is worn on the lower body of a patient, the catheter limiting member 4 can be clamped between the flexible sealing gasket 20 of the pant 2 and the lower body 17 of a patient to limit the catheter 16 which penetrates through the catheter limiting member 4; when the catheter limiting member 4 penetrated by the catheter 16 is clamped between the flexible sealing gasket 20 of the pant 2 worn on the lower body 17 of a patient and the lower body 17 of a patient, the catheter 16 which penetrates through the catheter limiting member 4 via the catheter perforation 40 is limited by the catheter limiting member 17 and extends through the flexible sealing gasket 20 and the lower body 17 of a patient.

[0050] The upper bag piece 21 is provided with a first left side binding belt 210 and a first right side binding belt 211, and the lower bag piece 22 is provided with a second left side binding belt 220 and a second right side binding belt 221. The first left side binding belt 210, the first right side binding belt 211, the second left side binding belt 220 and the second right side binding belt 221 are respectively provided with Velcro. In use, the patient's genital organ can have been inserted with the catheter 16 and the catheter 16 has been connected to a urine bag (not shown). Further, the bag pants 2 are worn on the patient's lower body 17. Specifically, the lower bag piece 22 is first attached to the patient's waist and hips, and then the second left side binding belt 220 and the second right side binding belt 221 are wound from the left and right sides of the patient's waist and hips to the top of the patient's abdomen. The second left side binding belt 220 and the second right side binding belt 221 are tightly attached together by means of the Velcro. The catheter limiting piece 4 penetrated by the catheter 16 is placed on the patient's lower body 17 (the placement position can be selected as appropriate, and preferably, for example, the inguinal region or the inner upper side of the thigh, so that the part of the flexible sealing gasket 20 embedded in the limiting groove 42 can correspond to the part of the flexible sealing gasket 20 corresponding to the patient's inguinal region or the part corresponding to the inner upper side of the thigh). Then, the upper bag piece 21 is placed on the patient's abdomen, and the part of the flexible sealing gasket 20 embedded in the limiting groove 42 is tightly sealed with the surface 420 of the limiting groove 42. The upper bag piece 21, the first left side binding belt 210 and the first right side binding belt 211 are attached to the second left side binding belt 220 and the second right side binding belt 221 by means of the Velcro, so as to promote the close wearing of the bag pants 2 on the human lower body, and to achieve the wearing of the bag pants 2 on the human lower body. At this time, the catheter 16 penetrating the catheter limiting piece 4 through the catheter hole 40 is limited by the catheter limiting piece 17 and extends through the flexible sealing gasket 20 and the patient's lower body 17. Subsequently, the position of the catheter limiting piece 4 can be adjusted to a certain extent, so as to promote the more reliable clamping of the catheter limiting piece 4 between the flexible sealing gasket 20 and the patient's lower body 17, and the better attachment of the human attachment surface 44 to the patient's lower body 17. The catheter limiting piece 4 is an accessory of the excrement collecting device 10, and is suitable for patients with inserted catheter 16. When the excrement collecting device 10 is used by patients without inserted catheter 16, the catheter limiting piece 4 is not needed, and at this time, the catheter limiting piece 4 configured by the excrement collecting device 10 can be stored, while the bag pants 2 and the excrement collector 3 of the excrement collecting device 10 are normally used. Therefore, the excrement collecting device 10 does not exclude the use of general patients.

[0051] The pants 2 further comprise a connecting bracket 25 for detachable docking with the excrement collector 3, the pants 2 are detachably connected with the excrement collector 3 by means of the connecting bracket 25, the connecting bracket 25 encloses a second frame opening 250 for human excretion, the connecting bracket 25 is located outside the crotch of the pants 2, and the flexible sealing gasket 20 is located inside the crotch of the pants 2; the first frame opening 200, the open crotch opening 24, and the second frame opening 250 are sequentially distributed from the inside to the outside of the pants 2, and the first frame opening 200, the open crotch opening 24, and the second frame opening 250 are substantially superimposed together, and the excrement (for example, the excrement of the patient) excreted by the patient can enter the excrement pool 300 through the first frame opening 200, the open crotch opening 24, and the second frame opening 250. The pants 2 further comprise a cover body 26, the pants 2 are worn on the lower body of the patient, and the cover body 26 covers the genitals of the patient after the pants 2 are worn on the lower body of the patient; the U-shaped edge of the cover body 26 directly or indirectly abuts against the back side of a part of the flexible sealing gasket 20.

[0052] The pants 2 are worn on the lower body of the patient, the flexible sealing gasket 20 is part of the pants 2, in the embodiment, the flexible sealing gasket 20 is an inflatable gasket, the pants 2 further comprise an inflatable waist pad 27 and a communication pipeline 28, the communication pipeline 28 is used for fluid communication between the inflatable waist pad 27 and the flexible sealing gasket 20, the inflatable waist pad 27 and the flexible sealing gasket 20 are kept in a state of fluid communication through the communication pipeline 28, so that the air pressure in the inflatable waist pad 27 is equal to the air pressure in the flexible sealing gasket 20. The pants 2 have two left and right communication pipelines 28 to effectively ensure the communication between the inflatable waist pad 27 and the flexible sealing gasket 20. The inflatable waist pad 27 is inflated and deflated through the flexible sealing gasket 20. The communication pipeline 28 comprises a gas conveying hose 280, a first gas conveying connector 281, and a second gas conveying connector 282, the gas conveying hose 280 connects the first gas conveying connector 281 and the second gas conveying connector 282, the first gas conveying connector 281 is combined with the flexible sealing gasket 20, and the first gas conveying connector 281 directly communicates with the flexible sealing gasket 20; the second gas conveying connector 282 is combined with the inflatable waist pad 27, and the second gas conveying connector 282 directly communicates with the inflatable waist pad 27; the first gas conveying connector 281 is at least partially located in the flexible sealing gasket 20, the second gas conveying connector 282 is at least partially located in the inflatable waist pad 27, the first gas conveying connector 281 comprises a first gas nozzle 2810, and the second gas conveying connector 282 comprises a second gas nozzle 2820; one end of the gas conveying hose 280 is sleeved on the first gas nozzle 2810, so that the gas conveying hose 280 communicates with the first gas conveying connector 281; the other end of the gas conveying hose 280 is sleeved on the second gas nozzle 2820, so that the gas conveying hose 280 communicates with the second gas conveying connector 282. The first gas conveying connector 281 is located at the back side of the flexible sealing gasket 20, and the second gas conveying connector 282 is located at the back side of the inflatable waist pad 27.

[0053] The inflatable waist pad 27 comprises an inner sheet 270, an outer sheet 271, and a plurality of connecting belts 272. An inner space of the inflatable waist pad 27 is formed between the inner sheet 270 and the outer sheet 271. After the panty piece 2 is worn on the lower body of a human, the outer sheet 271 is located between the waist of the human and the inner sheet 270. The connecting belts 272 are formed on the inner sheet 270 and the outer sheet 271. After the inflatable waist pad 27 is inflated, the connecting belts 272 pull the inner sheet 270 and the outer sheet 271 to limit the excessive expansion between the inner sheet 270 and the outer sheet 271, prevent the inflatable waist pad 27 from being inflated into a spherical shape, and promote the inflatable waist pad 27 to maintain a flat shape. In the embodiment, the connecting belts 272 are formed based on hot pressing of the inner sheet 270 and the outer sheet 271. The connecting belts 272 are formed by hot pressing a part of the inner sheet 270 and a part of the outer sheet 271 together. The edge of the outer sheet 271 and the edge of the inner sheet 270 are hot-pressed and fused together, so that the outer sheet 271 and the inner sheet 270 enclose a cavity. The outer sheet 271 is composed of a TPU layer. The inner sheet 270 is composed of a cloth layer and a TPU layer stacked together. TPU stands for thermoplastic polyurethane. The TPU layer is a thermoplastic polyurethane layer. The flexible sealing gasket 20 can also be configured with an outer sheet composed of a TPU layer and an inner sheet composed of a cloth layer and a TPU layer stacked together.

[0054] The excrement collector 3 comprises a bottom plate part 30, a rear seat part 31, and at least one water jet head (including a front water jet head, a rear water jet head 320, and another rear water jet head 321) for flushing and discharging excrement collected in the excrement pool 300 and for flushing the excrement pool 300 and the excretion part of the human body. The bottom plate part 30 extends forward from the rear seat part 31. The excrement pool 300 is recessed in the bottom plate part 30. The front water jet head is located at the front end of the excrement pool 300 and is used to flush and discharge excrement backward. The rear seat part 31 extends upward and is higher than the bottom plate part 30. The direction of the interface between the excrement collector 3 and the connecting bracket 25 is the front-back direction. The excrement collector 3 can be interfaced with the connecting bracket 25 forwardly. In the state that the connecting bracket 25 and the excrement collector 3 are interfaced together, the connecting bracket 25 is attached to the bottom plate part 30 and the rear seat part 31. In this state, the bottom plate part 30 is located at the lower side of the connecting bracket 25, and the rear seat part 31 is located at the rear side of the connecting bracket 25.

[0055] The excrement collector 3 further comprises a left buckle part 330 and a right buckle part 331. The left buckle part 330 and the right buckle part 331 are symmetrically arranged on the left and right sides of the excrement collector 3. The connecting bracket 25 further comprises a left buckle part and a right buckle part 251 corresponding to the left buckle part 330 and the right buckle part 331. The left buckle part and the right buckle part 251 are symmetrically arranged on the left and right sides of the connecting bracket 25. The left buckle part 330 is buckled to the left buckle part, and the right buckle part 331 is buckled to the right buckle part 251, so as to lock and buckle the excrement collector 3 and the connecting bracket 25 together.

[0056] In addition to the excrement collecting device 10, the nursing robot further comprises a main machine 11, a sewage suction pipeline 12 connected between the excrement collecting device 10 and the main machine 11, and a water supply pipeline 13 connected between the excrement collecting device 10 and the main machine 11. The main machine 11 comprises a negative pressure source 110 for sucking human excrement. The negative pressure source 110 can suck the human excrement collected in the toilet bowl 300 and the sewage after flushing through the sewage suction pipeline 12. The human excrement usually contains feces and urine flowing into the toilet bowl 300. The negative pressure source 110 is located inside the main machine 11. The negative pressure source 110 comprises a motor and an impeller. The rated power of the motor is between 100 W and 10,000 W. The impeller rotates under the drive of the motor to generate a suction airflow to suck the excrement. The main machine 11 further comprises a sewage tank 111 for containing the excrement sucked by the negative pressure source 110, a plurality of wheels 112, and a clean water tank 113 for providing cleaning water. The excrement collector 3 further comprises a sewage outlet 34 communicating with the toilet bowl 300. The sewage outlet 34 is used for docking with one end of the sewage suction pipeline 12. The excrement collector 3 further comprises a feces sensor, etc. After the patient discharges feces which is monitored by the feces sensor, the negative pressure source 110 of the nursing robot starts the suction action. The sewage sucked by the negative pressure source 110 is stored in the sewage tank 111.

Claims

1. A fecal collection device for a patient having a urinary catheter inserted therein, for wearing on the lower body of the patient, characterized by, Comprise: a toilet bowl for receiving excrement discharged by a patient; a flexible sealing gasket for sealing between the lower body of the patient and the feces collecting device worn on the lower body of the patient, the flexible sealing gasket encloses a first frame opening for the patient to discharge excrement; a catheter limiting member, the catheter limiting member is penetrable by a catheter, in a state that the feces collecting device is worn on the lower body of the patient, the catheter limiting member is clamped between the flexible sealing gasket of the feces collecting device and the lower body of the patient to limit the catheter penetrating the catheter limiting member; the catheter limiting member is flexible and deformable.

2. The device according to claim 1, characterized in that, The catheter limiting member is provided with a catheter penetration hole, the catheter penetrates the catheter limiting member through the catheter penetration hole, when the catheter limiting member penetrated by the catheter is clamped between the flexible sealing gasket of the feces collecting device worn on the lower body of the patient and the lower body of the patient, the catheter penetrating the catheter limiting member through the catheter penetration hole is limited by the catheter limiting member and extends through the flexible sealing gasket and the lower body of the patient.

3. The device according to claim 1, characterized in that, The catheter limiting member is one of an inflatable member, a rubber member, and a gel member.

4. The device for collecting feces of a patient to whom a urinary catheter is inserted according to claim 1, characterized by The catheter limiting member is provided with a catheter penetration hole, the catheter penetrates the catheter limiting member through the catheter penetration hole, the catheter penetration hole is in interference fit with the part of the catheter penetrating the catheter penetration hole.

5. The device for collecting feces of a patient to whom a urinary catheter is inserted according to claim 1, characterized by, The catheter limiting member is provided with a catheter penetration hole, the catheter penetrates the catheter limiting member through the catheter penetration hole, the catheter limiting member is further provided with a mounting slit, the mounting slit is directly connected with the catheter penetration hole, the mounting slit is located radially outward of the catheter penetration hole, the catheter can expand the mounting slit to embed the catheter in the catheter penetration hole through the mounting slit, correspondingly, the catheter can expand the mounting slit to separate the catheter from the catheter penetration hole through the mounting slit.

6. The device according to claim 5, characterized in that, The mounting slit is a closed and expandable slit.

7. The device according to claim 5, characterized in that, The catheter penetration hole comprises a first port, a second port, and a notch, the first port and the second port are located at opposite ends of the catheter penetration hole, the first port is located at one side of the catheter limiting member, and the second port is located at the opposite side of the catheter limiting member; the notch is located radially outward of the catheter penetration hole, the notch is located between the first port and the second port, the notch separates the mounting slit into a first part and a second part spaced apart on opposite sides of the notch, the first part of the mounting slit connects the first port and the notch, the second part of the mounting slit connects the second port and the notch, the first part of the mounting slit extends from the notch to the one side of the catheter limiting member, and the second part of the mounting slit extends from the notch to the opposite side of the catheter limiting member.

8. The device according to claim 7, characterized in that, The catheter positioner further comprises a limiting recess, a first limiting protrusion and a second limiting protrusion, the limiting recess is formed between the first limiting protrusion and the second limiting protrusion, the first limiting protrusion and the second limiting protrusion are located on opposite sides of the catheter positioner, and a surface of the limiting recess is provided for abutting the flexible sealing gasket; the flexible sealing gasket can be partially embedded in the limiting recess and partially abut the surface of the limiting recess, the flexible sealing gasket can be partially embedded in the limiting recess so that one of the first limiting protrusion and the second limiting protrusion is located at the edge of the first frame opening and the other of the first limiting protrusion and the second limiting protrusion is away from the first frame opening relative to the one of the first limiting protrusion and the second limiting protrusion, the first limiting protrusion can block one side of the portion of the flexible sealing gasket embedded in the limiting recess, and the second limiting protrusion can block the opposite side of the portion of the flexible sealing gasket embedded in the limiting recess.

9. The device according to claim 5, characterized in that, The catheter positioner is clamped between the flexible sealing gasket of the feces collecting device worn on the lower body of the patient and the lower body of the patient, the portion of the flexible sealing gasket embedded in the limiting recess is deformed in a mutually adaptive manner with the catheter positioner; the one side of the portion of the flexible sealing gasket embedded in the limiting recess and the opposite side of the portion of the flexible sealing gasket embedded in the limiting recess constitute opposite sides of the portion of the flexible sealing gasket embedded in the limiting recess in the length direction of the catheter hole.

10. The fecal collection device for a patient being fitted with a urinary catheter according to claim 9, characterized in that, The catheter positioner further comprises a human body abutting surface, the catheter positioner is clamped between the flexible sealing gasket of the feces collecting device worn on the lower body of the patient and the lower body of the patient, and the human body abutting surface is provided for abutting the lower body of the patient; the surface of the limiting recess and the human body abutting surface are located on opposite sides of the catheter positioner, and the catheter hole is located between the surface of the limiting recess and the human body abutting surface.

11. The fecal collection device for a patient being inserted with a urinary catheter according to claim 9, characterized by, ​ 12. The fecal collection device for a patient being fitted with a urinary catheter of claim 1, wherein, The flexible sealing gasket is part of the pants, and the flexible sealing gasket is part of the pants, and the pants further comprises an upper sheet, a lower sheet, a connecting portion, and an open crotch, the connecting portion connects the upper sheet and the lower sheet, the open crotch is at least partially provided on the connecting portion, the flexible sealing gasket is at least partially provided on the connecting portion, the flexible sealing gasket extends along the edge of the open crotch to form a ring shape, and the first frame opening overlaps with the open crotch.

13. The fecal collection device for a patient being fitted with a urinary catheter according to claim 1, wherein, The flexible sealing gasket is part of the pants, and the flexible sealing gasket is part of the pants, and the pants further comprises an upper sheet, a lower sheet, a connecting portion, and an open crotch, the connecting portion connects the upper sheet and the lower sheet, the open crotch is at least partially provided on the connecting portion, the flexible sealing gasket is at least partially provided on the connecting portion, the flexible sealing gasket extends along the edge of the open crotch to form a ring shape, and the first frame opening overlaps with the open crotch.

14. The fecal collection device for a patient being fitted with a urinary catheter according to claim 13, characterized in that, The pants further comprises an open crotch, and the first frame opening, the open crotch, and the second frame opening are sequentially distributed from the inside of the pants to the outside, and the collecting device comprises a bottom plate portion, a rear seat portion, and at least one spray head for water spraying, the bottom plate portion extends forward from the rear seat portion, the toilet bowl is recessed in the bottom plate portion, and the rear seat portion extends upward to be higher than the bottom plate portion.

15. The fecal collection device for a patient being fitted with a urinary catheter of claim 1, wherein, The flexible sealing gasket is part of the pants, and the flexible sealing gasket is part of the pants, and the pants further comprises an upper sheet, a lower sheet, a connecting portion, and an open crotch, the connecting portion connects the upper sheet and the lower sheet, the open crotch is at least partially provided on the connecting portion, the flexible sealing gasket is at least partially provided on the connecting portion, the flexible sealing gasket extends along the edge of the open crotch to form a ring shape, and the first frame opening overlaps with the open crotch.

16. The fecal collection device for a patient being fitted with a urinary catheter according to claim 15, wherein, The pant piece has two left and right communication pipelines, the inflatable waist pad is inflated and deflated via the flexible sealing gasket, the communication pipeline comprises a gas conveying hose, a first gas conveying connector and a second gas conveying connector, the gas conveying hose connects the first gas conveying connector and the second gas conveying connector, the first gas conveying connector is combined with the flexible sealing gasket, and the first gas conveying connector directly communicates with the flexible sealing gasket; the second gas conveying connector is combined with the inflatable waist pad, and the second gas conveying connector directly communicates with the inflatable waist pad; the first gas conveying connector is at least partially located in the flexible sealing gasket, the second gas conveying connector is at least partially located in the inflatable waist pad, the first gas conveying connector comprises a first gas nozzle, the second gas conveying connector comprises a second gas nozzle, one end of the gas conveying hose is sleeved on the first gas nozzle, and the opposite end of the gas conveying hose is sleeved on the second gas nozzle.

17. The fecal collection device for a patient being fitted with a urinary catheter of claim 15, wherein, The inflatable waist pad comprises an inner sheet, an outer sheet and a plurality of connecting belts, an inner space of the inflatable waist pad is formed between the inner sheet and the outer sheet, after the pant piece is worn on the lower body of a patient, the outer sheet is located between the waist of the patient and the inner sheet, the connecting belts are formed on the inner sheet and the outer sheet, and the connecting belts pull the inner sheet and the outer sheet after the inflatable waist pad is inflated.

18. The fecal collection device for a patient being fitted with a urinary catheter according to claim 17, wherein, The connecting belts are formed by hot pressing a part of the inner sheet and a part of the outer sheet together, the outer sheet is composed of a TPU layer, and the inner sheet is composed of a cloth layer and a TPU layer which are stacked together.

19. A fecal management device for a patient having a urinary catheter inserted therein, for wearing on the lower body of the patient, characterized in that, The set of apparatuses comprises: a fecal collection device, comprising a toilet bowl, the toilet bowl being configured to receive feces excreted by a patient; a pant piece, configured to be worn on the lower body of the patient, comprising a flexible sealing gasket, the flexible sealing gasket being configured to seal between the lower body of the patient and the pant piece worn on the lower body of the patient, and the flexible sealing gasket surrounding a first frame opening configured to be used by the patient for excretion; the fecal collection device is detachably connected with the pant piece; a catheter limiting piece, the catheter limiting piece being penetrated by a catheter, in a state where the pant piece is worn on the lower body of the patient, the catheter limiting piece is clamped between the flexible sealing gasket of the pant piece and the lower body of the patient to limit the catheter penetrating the catheter limiting piece; and the catheter limiting piece is flexible and deformable.

20. A care robot adapted for use in inserting a urinary catheter into a patient, characterized in that The set of apparatuses comprises:

21. The care robot for a patient being inserted with a urinary catheter according to claim 20, characterized in that, a fecal collection device, comprising a toilet bowl, the toilet bowl being configured to receive feces excreted by a patient; a pant piece, configured to be worn on the lower body of the patient, comprising a flexible sealing gasket, the flexible sealing gasket being configured to seal between the lower body of the patient and the pant piece worn on the lower body of the patient, and the flexible sealing gasket surrounding a first frame opening configured to be used by the patient for excretion; the fecal collection device is detachably connected with the pant piece; a catheter limiting piece, the catheter limiting piece being penetrated by a catheter, in a state where the pant piece is worn on the lower body of the patient, the catheter limiting piece is clamped between the flexible sealing gasket of the pant piece and the lower body of the patient to limit the catheter penetrating the catheter limiting piece; and the catheter limiting piece is flexible and deformable. The set of apparatuses comprises: a fecal collection device, comprising a toilet bowl, the toilet bowl being configured to receive feces excreted by a patient; a pant piece, configured to be worn on the lower body of the patient, comprising a flexible sealing gasket, the flexible sealing gasket being configured to seal between the lower body of the patient and the pant piece worn on the lower body of the patient, and the flexible sealing gasket surrounding a first frame opening configured to be used by the patient for excretion; the fecal collection device is detachably connected with the pant piece; a catheter limiting piece, the catheter limiting piece being penetrated by a catheter, in a state where the pant piece is worn on the lower body of the patient, the catheter limiting piece is clamped between the flexible sealing gasket of the pant piece and the lower body of the patient to limit the catheter penetrating the catheter limiting piece; and the catheter limiting piece is flexible and deformable.

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