Cystitis flushing device for hematopoietic stem cell transplantation patient

Abstract

The invention relates to the technical field of bladder irrigation, and discloses a hematopoietic stem cell transplantation patient cystitis irrigation device which comprises a catheter, a rotary adapter arranged at the upper end of the catheter, a urine collection bag connected with the rotary adapter, an irrigation liquid bottle and an injector. An inflation connecting pipe, a urine collecting bag connecting pipe and a flushing fluid connecting pipe are arranged at the outer side end of the catheter; and the rotary adapter is inserted into the urine collecting bag connecting pipe and the flushing fluid connecting pipe of the catheter and is used for switching the flushing device into an automatic flushing mode or a manual flushing mode and urinating of the catheter. By arranging the rotary adapter on the catheter, the flushing device can be conveniently switched into an automatic flushing mode and a manual flushing mode, so that a more appropriate flushing mode is selected according to the condition of a patient, the adaptability of the flushing device is improved, and the flushing effect can be greatly improved through the automatic and manual matched flushing mode.

Description

Technical Field

[0001] The invention relates to the technical field of bladder flushing, in particular to a cystitis flushing device for patients with hematopoietic stem cell transplantation. Background Art

[0002] Hematopoietic stem cell transplantation is an important treatment method, but patients often face various complications after transplantation, among which cystitis is a common one. For cystitis in hematopoietic stem cell transplant patients, timely and effective bladder irrigation is essential. However, existing bladder irrigation devices have some shortcomings when used for these special patients.

[0003] As disclosed in patent application No. 202321811791.7, a cystitis flushing device for hematopoietic stem cell transplant patients includes a tertiary catheter, an infusion connecting tube and a drainage bag connector, and the top of the tertiary catheter is fixedly connected to a catheter connector. When the catheter is blocked by a blood clot, the utility model inserts the syringe needle at one end of the syringe into the saline bag, extracts the saline, and then rotates the syringe connector to insert the inner wall of the second connecting hole and fixes it with the infusion connecting tube. After the drainage tube is fixedly connected to the infusion connecting tube, the catheter is pulled out, and the drainage bag connector is inserted into the inner wall of the first connecting hole for connection. At this time, the syringe can be quickly pushed to push the saline into the interior of the catheter, and then quickly pulled out to extract the nearby blood clots, and the interior of the catheter is further cleaned and the blood clots are cleared.

[0004] However, the above patent has the following problems: it is not possible to flush and urinate at the same time, and it is even more impossible to freely switch between automatic flushing and manual flushing, which reduces the flushing effect of the flushing device. Based on this, we designed a flushing device for cystitis in hematopoietic stem cell transplant patients. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a cystitis flushing device for hematopoietic stem cell transplant patients, which has the function of freely switching between automatic flushing mode and manual flushing mode and can enhance the flushing effect.

[0007] (II) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A cystitis flushing device for hematopoietic stem cell transplant patients, comprising a urinary catheter and a rotary adapter arranged at the upper end of the urinary catheter, and a urine collection bag, a flushing liquid bottle and a syringe connected to the rotary adapter;

[0010] The outer end of the urinary catheter is provided with an inflation connection pipe, a urine collection bag connection pipe, and a flushing liquid connection pipe;

[0011] The rotary adapter is plugged into the urine collection bag connecting pipe and the flushing liquid connecting pipe of the urinary catheter and is used to switch the flushing device to the automatic flushing mode or the manual flushing mode and to drain urine from the urinary catheter.

[0012] Preferably, the rotary adapter comprises a rotary outer ring, an upper docking block and a lower docking block, the outer side of the rotary outer ring is annular, a circular docking plate is provided at the middle of the inner side, and a clamping groove is provided at the inner upper edge and the lower edge of the rotary outer ring, the upper docking block is rotatably clamped in the upper clamping groove, and the lower docking block is rotatably clamped in the lower clamping groove, the upper docking block and the lower docking block are fixedly connected by a rotating shaft, and the rotating shaft passes through the midpoint of the docking plate and maintains a rotating seal with the docking plate;

[0013] The upper end surface of the upper docking block is provided with a urinary catheter outlet, a manual flushing interface, and an automatic flushing interface; the lower section of the lower docking block is provided with a urinary catheter socket, a manual flushing outlet, and an automatic flushing outlet, and the lower ends of the urinary catheter socket and the manual flushing outlet are gathered together; the urinary catheter outlet and the urinary catheter socket, the manual flushing interface and the manual flushing outlet, and the automatic flushing interface and the automatic flushing outlet are respectively on three vertical axes; and the three vertical axes and the central axis of the docking plate are in the same plane;

[0014] The docking plate is provided with four docking hole groups corresponding to the urinary catheter outlet, manual flushing interface, and automatic flushing interface; the connection mode of the urinary catheter outlet, manual flushing interface, and automatic flushing interface is controlled by opening and closing different docking hole groups.

[0015] Preferably, the lower ends of the urinary catheter outlet, manual flushing interface, and automatic flushing interface all pass through the upper docking block, and the upper ends of the urinary catheter insertion port, manual flushing outlet, and automatic flushing outlet all pass through the lower docking block. When the docking hole on the docking plate is a through hole, the interface and the outlet on the vertical axis are connected, otherwise they are closed.

[0016] Preferably, the four groups of docking hole groups are group a, group b, group c, and group d; group a includes holes a1, a2, and a3; group b includes holes b1, b2, and b3; group c includes holes c1, c2, and c3; group d includes holes d1, d2, and d3;

[0017] Among them, holes a1, b1, c1, and d1 correspond to the automatic flushing interface and the automatic flushing outlet; holes a2, b2, c2, and d2 correspond to the manual flushing interface and the manual flushing outlet; holes a3, b3, c3, and d3 correspond to the urinary catheter outlet and the urinary catheter plug;

[0018] The holes a1, a3, b3, c2, c3 and d1 are all through holes; holes a2, b1, b2, c1, d2 and d3 are all closed holes; and the interiors of holes b1 and b2, holes d2 and d3 are connected through connecting holes.

[0019] Preferably, four gears, I, II, III and IV, are provided on the outer wall of the rotating outer ring, corresponding to the docking holes of group a, group b, group c and group d respectively.

[0020] When the outer ring is driven to rotate, different docking hole groups on the docking plate can be docked with the urinary catheter outlet, the manual flushing interface, and the automatic flushing interface;

[0021] When the bladder is automatically flushed, the rotating outer ring is in position I, the automatic flushing interface and the automatic flushing outlet are connected, the manual flushing interface and the manual flushing outlet are closed, the urinary catheter outlet and the urinary catheter socket are connected, and the flushing liquid flows through hole a1 into the flushing liquid pipe, and enters the bladder from the catheter, and then enters the catheter from the bladder, and enters the urine collecting bag from the urinary catheter, the urine bag pipe, the hole a3, and the urine outlet. This process is automatic bladder flushing.

[0022] When it is necessary to manually flush the bladder, first rotate the rotating outer ring to the II gear position, and connect the syringe to the manual flushing interface. At this time, the holes b1 and b2 are closed, but the internal connecting holes are connected. Pull the syringe to absorb the flushing liquid in the flushing liquid bottle, and then rotate the rotating outer ring to the III gear position. At this time, the hole c1 is closed, and the holes c2 and c3 are opened. Push the syringe so that the flushing liquid inside it passes through the hole c2, the manual flushing outlet, and the catheter into the bladder, and then enters the catheter from the bladder, and enters the urine collecting bag from the collecting catheter, the urine bag connecting pipe, the hole a3, and the urine outlet.

[0023] At the same time, the syringe can be pulled out again to allow the flushing blood water to enter the syringe, and then the rotating outer ring can be rotated to the IV gear. At this time, hole d1 is opened, holes d2 and d3 are closed, but the interiors of holes d2 and d3 are connected through the connecting hole. Then the syringe is pushed to allow the flushing blood water in the syringe to enter the urine outlet tube and the urine collection bag from the connecting hole, thereby increasing the effect of manual flushing.

[0024] Preferably, an airbag is provided on the outer layer of the front end portion of the catheter, and an inflation channel is provided on the outer wall of the catheter along its axial direction, one end of the inflation channel is connected to the inflation tube, and the other end thereof is connected to the airbag; a sealing cover is provided on the outer end of the inflation tube, and the sealing cover is connected to the outer wall of the inflation tube by soft plastic.

[0025] When the urinary catheter is inserted into the bladder, a syringe is inserted into the inflation tube and the air bag is inflated to expand the air bag. The syringe is removed and the mouth of the inflation tube is sealed with a cover. The inflated air bag fixes the urinary catheter in the body and is not easy to slip off.

[0026] Preferably, a catheter lumen is provided inside the catheter, an elastic diaphragm is provided in the middle of the catheter lumen, the elastic diaphragm divides the catheter lumen into two left and right chamber channels, the ends of the two chamber channels are blocked and are hemispherical, and the sides of the two chamber channels are provided with liquid outlets; the rear end of one chamber channel is connected to the urine collection bag pipe, and the rear end of the other chamber channel is connected to the flushing liquid pipe.

[0027] The two chamber channels facilitate the separate circulation of the flushing liquid and the flushing blood after flushing, thereby maintaining the flushing effect.

[0028] Preferably, the elastic diaphragm is made of rubber. When flushing, the flushing liquid enters the flushing chamber channel, and the elastic diaphragm bends toward the chamber channel on the other side under the action of pressure, so that the diameter of the flushing chamber channel becomes larger, which facilitates the entry of the flushing liquid; when urinating, the urine squeezes the urination chamber channel, making its diameter larger, which is beneficial to the discharge of urine and can prevent blood clots from clogging the catheter.

[0029] (III) Beneficial effects

[0030] Compared with the prior art, the present invention provides a cystitis flushing device for hematopoietic stem cell transplant patients, which has the following beneficial effects:

[0031] 1. The present invention provides a rotary adapter on the catheter, which can conveniently switch the flushing device to an automatic flushing mode and a manual flushing mode, so that a more appropriate flushing mode can be selected according to the patient's condition, thereby increasing the adaptability of the flushing device, and the automatic and manual flushing modes can greatly increase the flushing effect.

[0032] 2. The present invention arranges four groups of docking holes on the rotary adapter and utilizes the opening and closing relationship between the hole groups to control the connection of the urinary catheter outlet, the manual flushing interface, and the automatic flushing interface, thereby facilitating the nursing staff to conveniently switch the flushing mode.

[0033] 3. The present invention arranges an elastic diaphragm in the catheter cavity of the catheter. During flushing and urination, the elastic diaphragm can bend to the other side of the cavity channel, thereby enlarging the delivery cavity channel, increasing the delivery effect, and avoiding blockage of blood clots. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure 2 It is a schematic diagram of the structure of the urinary catheter and the rotary adapter in the present invention;

[0036] Figure 3 It is a schematic diagram of the structure of the urinary catheter in the present invention;

[0037] Figure 4 It is a schematic diagram of the structure of the rotary adapter in the present invention;

[0038] Figure 5 is an exploded view of the rotary adapter in the present invention;

[0039] Figure 6 is an exploded view of the rotary adapter in the present invention;

[0040] Figure 7 is an exploded view of the rotary adapter in the present invention;

[0041] Figure 8 is an exploded view of the rotary adapter in the present invention;

[0042] Fig. 9 is an exploded view of the rotary adapter in the present invention;

[0043] Fig.10 It is an exploded view of the rotary adapter in the present invention.

[0044] In the figure: 1, urinary catheter; 2, swivel adapter; 3, urine outlet tube; 4, urine collection bag; 5, flushing liquid bottle; 6, flow rate controller; 7, flushing tube; 8, syringe; 9, plug connector; 10, plug sleeve;

[0045] 101, inflation pipe; 102, urine collection bag pipe; 103, flushing liquid pipe; 104, cover; 105, air bag; 106, liquid outlet;

[0046] 1011. urinary catheter lumen; 1012. inflation channel; 1013. elastic diaphragm;

[0047] 201, rotating outer ring; 202, upper docking block; 203, lower docking block;

[0048] 2011, docking plate; 2012, rotation gear; 2013, docking hole group; 2014, shaft hole; 2015, connecting hole; 2016, card slot;

[0049] 2021, urinary catheter outlet; 2022, manual flushing interface; 2023, automatic flushing interface; 2024, rotating shaft; 2025, sealing ring;

[0050] 2031. Urine catheter inlet; 2032. Manual flushing outlet; 2033. Automatic flushing outlet. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0052] Embodiment 1

[0053] See also Figure 1-Figure 3 , a cystitis flushing device for hematopoietic stem cell transplant patients, comprising a urinary catheter 1 and a rotary adapter 2 arranged at the upper end of the urinary catheter 1, and a urine collection bag, a flushing liquid bottle 5 and a syringe 8 connected to the rotary adapter 2;

[0054] The outer end of the urinary catheter 1 is provided with an inflation connection pipe 101, a urine collection bag connection pipe 102, and a flushing liquid connection pipe 103;

[0055] An air bag 105 is provided on the outer layer of the front end of the catheter 1, and an inflation channel 1012 is provided on the outer wall of the catheter 1 along its axial direction, one end of the inflation channel 1012 is connected to the inflation pipe 101, and the other end thereof is connected to the air bag 105; a sealing cover 104 is provided on the outer end of the inflation pipe 101, and the sealing cover 104 is connected to the outer wall of the inflation pipe 101 by soft plastic.

[0056] The rotary adapter 2 is plugged into the urine collection bag connection pipe 102 and the flushing liquid connection pipe 103 of the urinary catheter 1, and is used to switch the flushing device to the automatic flushing mode or the manual flushing mode, and to discharge urine from the urinary catheter 1;

[0057] The rotating adapter 2 is connected to a urine collecting bag 4 through a urine outlet tube 3, connected to a flushing liquid bottle 5 through a flushing tube 7, and can be plugged with a syringe 8; the connecting ends of the urine outlet tube 3 and the flushing tube 7 are both connected to a plug connector 9, which is plugged into a plug sleeve 10 on the rotating adapter 2 to complete a quick docking. A flow rate controller 6 is also provided on the flushing tube 7 to control the flushing amount and flushing speed of the flushing liquid.

[0058] When in use, the urinary catheter 1 is inserted into the bladder, the syringe 8 is inserted into the inflation tube 101, and the airbag 105 is inflated to expand the airbag 105. The syringe 8 is removed, and the cover 104 is used to seal the mouth of the inflation tube 101. The inflated airbag 105 fixes the urinary catheter 1 in the body and is not easy to slip off. By arranging a rotary adapter 2 on the urinary catheter 1, the flushing device can be easily switched to an automatic flushing mode and a manual flushing mode, so that a more suitable flushing mode can be selected according to the patient's condition, thereby increasing the adaptability of the flushing device.

[0059] Embodiment 2

[0060] In order to enable the nursing staff to conveniently switch between the automatic flushing and manual flushing modes, this embodiment adds the following scheme on the basis of the first embodiment:

[0061] See also Figure 4-Figure 7The rotary adapter 2 includes a rotary outer ring 201, an upper docking block 202, and a lower docking block 203. The outer side of the rotary outer ring 201 is annular, and a circular docking plate 2011 is provided in the middle of the inner side thereof. A clamping groove 2016 is provided at the inner upper edge and the lower edge of the rotary outer ring 201. The upper docking block 202 is rotatably clamped in the upper clamping groove 2016, and the lower docking block 203 is rotatably clamped in the lower clamping groove 2016. The upper docking block 202 and the lower docking block 203 are fixedly connected by a rotating shaft 2024, and the rotating shaft 2024 passes through the midpoint of the docking plate 2011 and maintains a rotation seal with the docking plate 2011.

[0062] The upper end surface of the upper docking block 202 is provided with a urinary catheter outlet 2021, a manual flushing interface 2022, and an automatic flushing interface 2023; the lower section of the lower docking block 203 is provided with a urinary catheter socket 2031, a manual flushing outlet 2032, and an automatic flushing outlet 2033, and the lower ends of the urinary catheter socket 2031 and the manual flushing outlet 2032 are gathered together; the urinary catheter outlet 2021 and the urinary catheter socket 2031, the manual flushing interface 2022 and the manual flushing outlet 2032, and the automatic flushing interface 2023 and the automatic flushing outlet 2033 are respectively on three vertical axes; and the three vertical axes and the central axis of the docking plate 2011 are in the same plane;

[0063] The docking plate 2011 is provided with four docking hole groups 2013 corresponding to the urinary catheter outlet 2021, the manual flushing interface 2022, and the automatic flushing interface 2023; the connection mode of the urinary catheter outlet 2021, the manual flushing interface 2022, and the automatic flushing interface 2023 is controlled by opening and closing different docking hole groups 2013.

[0064] Among them, the lower ends of the urinary catheter outlet 2021, the manual flushing interface 2022, and the automatic flushing interface 2023 all pass through the upper docking block 202, and the upper ends of the urinary catheter socket 2031, the manual flushing outlet 2032, and the automatic flushing outlet 2033 all pass through the lower docking block 203. When the docking hole on the docking plate 2011 is a through hole, the interface and the outlet on the vertical axis are connected, otherwise they are closed.

[0065] like Figure 7 The four docking hole groups 2013 are group a, group b, group c, and group d; group a includes holes a1, a2, and a3; group b includes holes b1, b2, and b3; group c includes holes c1, c2, and c3; group d includes holes d1, d2, and d3;

[0066] Among them, hole a1, hole b1, hole c1, hole d1 correspond to the automatic flushing interface 2023 and the automatic flushing outlet 2033; hole a2, hole b2, hole c2, hole d2 correspond to the manual flushing interface 2022 and the manual flushing outlet 2032; hole a3, hole b3, hole c3, hole d3 correspond to the urinary catheter outlet 2021 and the urinary catheter plug 2031;

[0067] Hole a1, hole a3, hole b3, hole c2, hole c3, and hole d1 are all through holes; hole a2, hole b1, hole b2, hole c1, hole d2, and hole d3 are all closed holes; and the interiors of hole b1, hole b2, hole d2, and hole d3 are connected through the connecting hole 2015.

[0068] Among them, four gears, I, II, III, and IV, are arranged on the outer wall of the rotating outer ring 2011, and correspond to the docking holes of group a, group b, group c, and group d respectively.

[0069] When the outer ring 2011 is driven to rotate, different docking hole groups 2013 on the docking plate 2011 can be docked with the urinary catheter outlet 2021, the manual flushing interface 2022, and the automatic flushing interface 2023;

[0070] When the bladder is automatically flushed, the rotating outer ring 2011 is in gear I, the automatic flushing interface 2023 and the automatic flushing outlet 2033 are connected, the manual flushing interface 2022 and the manual flushing outlet 2032 are closed, the urinary catheter outlet 2021 and the urinary catheter socket 2031 are connected, and the flushing liquid flows through the hole a1 into the flushing liquid connecting pipe 103, and enters the bladder from the catheter 1, and then enters the urinary catheter 1 from the bladder, and enters the urine collecting bag 3 from the collecting catheter 1, the urine bag connecting pipe, the hole a3, and the urine outlet tube 3. This process is automatic bladder flushing.

[0071] When it is necessary to manually flush the bladder, first rotate the rotating outer ring 2011 to the II gear position, and connect the syringe 8 to the manual flushing interface 2022. At this time, the hole b1 and the hole b2 are closed, but the internal connecting hole 2015 is connected. Pull out the syringe 8 to absorb the flushing liquid in the flushing liquid bottle 5, and then rotate the rotating outer ring 2011 to the III gear position. At this time, the hole c1 is closed, and the holes c2 and c3 are opened. Push the syringe 8 so that the flushing liquid inside it passes through the hole c2, the manual flushing outlet 2032, and the catheter 1 into the bladder, and then enters the catheter 1 from the bladder, and enters the urine collecting bag 3 from the collecting catheter 1, the urine bag connecting pipe, the hole a3, and the urine outlet tube 3; free switching between automatic flushing and manual flushing is realized.

[0072] At the same time, the syringe 8 can be pulled out again to allow the flushing blood water to enter the syringe 8, and then the rotating outer ring 2011 can be rotated to the IV gear. At this time, the hole d1 is opened, and the holes d2 and d3 are closed, but the interiors of the holes d2 and d3 are connected through the connecting hole 2015. Then the syringe 8 is pushed, so that the flushing blood water in the syringe 8 enters the urine outlet tube 3 and the urine collecting bag 3 from the connecting hole 2015, thereby increasing the effect of manual flushing.

[0073] Embodiment 3

[0074] In order to automatically adapt the size of the delivery channel in the catheter, increase the delivery effect, and avoid blood clot blockage, this embodiment adds the following solutions on the basis of the first or second embodiment:

[0075] See also Figure 8-Figure 9 A urinary catheter cavity 1011 is provided inside the urinary catheter 1, and an elastic diaphragm 1013 is provided in the middle of the urinary catheter cavity 1011. The elastic diaphragm 1013 is made of a rubber material with stretchability. The elastic diaphragm 1013 divides the urinary catheter cavity 1011 into two left and right chamber channels. The ends of the two chamber channels are blocked and have a hemispherical shape. Liquid outlets 106 are provided on the sides of the two chamber channels; the rear end of one of the chamber channels is connected to the urine collection bag pipe 102, and the rear end of the other chamber channel is connected to the flushing liquid pipe 103.

[0076] The two chamber channels facilitate the separate circulation of the flushing liquid and the flushing blood after flushing, thereby maintaining the flushing effect.

[0077] like Fig. 9 When flushing, the flushing liquid enters the flushing chamber channel, and the elastic diaphragm 1013 bends toward the other side of the chamber channel under the action of pressure, so that the diameter of the flushing chamber channel becomes larger, which facilitates the entry of the flushing liquid;

[0078] like Fig.10 When urinating, urine squeezes the urination cavity channel, making its diameter larger, which is beneficial to the discharge of urine and can prevent blood clots from blocking the catheter 1.

Claims

1. A cystitis flushing device for hematopoietic stem cell transplant patients, characterized in that: It comprises a urinary catheter (1) and a rotary adapter (2) arranged at the upper end of the urinary catheter (1), and a urine collection bag, a flushing liquid bottle (5) and a syringe (8) connected to the rotary adapter (2); The outer end of the urinary catheter (1) is provided with an inflation connection pipe (101), a urine collection bag connection pipe (102), and a flushing liquid connection pipe (103); The rotary adapter (2) is plugged into the urine collection bag connection pipe (102) and the flushing liquid connection pipe (103) of the urinary catheter (1) and is used to switch the flushing device to an automatic flushing mode or a manual flushing mode, as well as to drain urine from the urinary catheter (1).

2. The device for flushing cystitis in patients with hematopoietic stem cell transplantation according to claim 1, characterized in that: The rotary adapter (2) comprises a rotary outer ring (201), an upper docking block (202), and a lower docking block (203); the outer side of the rotary outer ring (201) is annular, and a circular docking plate (2011) is provided in the middle of the inner side; a clamping groove (2016) is provided at the inner upper edge and the lower edge of the rotary outer ring (201); the upper docking block (202) is rotatably clamped in the upper clamping groove (2016); the lower docking block (203) is rotatably clamped in the lower clamping groove (2016); the upper docking block (202) and the lower docking block (203) are fixedly connected via a rotating shaft (2024); the rotating shaft (2024 passes through the midpoint of the docking plate (2011) and maintains a rotational seal with the docking plate (2011); The upper end surface of the upper docking block (202) is provided with a urinary catheter outlet (2021), a manual flushing interface (2022), and an automatic flushing interface (2023); the lower section of the lower docking block (203) is provided with a urinary catheter socket (2031), a manual flushing outlet (2032), and an automatic flushing outlet (2033), and the lower ends of the urinary catheter socket (2031) and the manual flushing outlet (2032) are brought together; the urinary catheter outlet (2021) and the urinary catheter socket (2031), the manual flushing interface (2022) and the manual flushing outlet (2032), and the automatic flushing interface (2023) and the automatic flushing outlet (2033) are respectively on three vertical axes; and the three vertical axes and the central axis of the docking plate (2011) are in the same plane; The docking plate (2011) is provided with four docking hole groups (2013) corresponding to the urinary catheter outlet (2021), the manual flushing interface (2022), and the automatic flushing interface (2023); the connection mode of the urinary catheter outlet (2021), the manual flushing interface (2022), and the automatic flushing interface (2023) is controlled by opening and closing different docking hole groups (2013).

3. A cystitis flushing device for hematopoietic stem cell transplantation patients according to claim 2, characterized in that: The lower ends of the urinary catheter outlet (2021), the manual flushing interface (2022), and the automatic flushing interface (2023) all pass through the upper docking block (202), and the upper ends of the urinary catheter insertion port (2031), the manual flushing outlet (2032), and the automatic flushing outlet (2033) all pass through the lower docking block (203). When the docking hole on the docking plate (2011) is a through hole, the interface on the vertical axis is connected to the outlet, otherwise it is closed.

4. The device for flushing cystitis in patients with hematopoietic stem cell transplantation according to claim 3, characterized in that: The four groups of docking hole groups (2013) are group a, group b, group c, and group d; group a includes holes a1, a2, and a3; group b includes holes b1, b2, and b3; group c includes holes c1, c2, and c3; group d includes holes d1, d2, and d3; Among them, the holes a1, b1, c1, and d1 correspond to the automatic flushing interface (2023) and the automatic flushing outlet (2033); the holes a2, b2, c2, and d2 correspond to the manual flushing interface (2022) and the manual flushing outlet (2032); and the holes a3, b3, c3, and d3 correspond to the urinary catheter outlet (2021) and the urinary catheter insertion port (2031); The holes a1, a3, b3, c2, c3 and d1 are all through holes; holes a2, b1, b2, c1, d2 and d3 are all closed holes; and the interiors of holes b1, b2, d2 and d3 are connected via connecting holes (2015).

5. The device for flushing cystitis in patients with hematopoietic stem cell transplantation according to claim 4, characterized in that: The outer wall of the rotating outer ring (2011) is provided with four gears, namely, I, II, III and IV, which correspond to the a group, b group, c group and d group of docking holes respectively.

6. The device for flushing cystitis in patients with hematopoietic stem cell transplantation according to claim 1, characterized in that: The outer layer of the front end of the urinary catheter (1) is provided with an air bag (105), and the outer wall of the urinary catheter (1) is provided with an inflation channel (1012) along its axial direction, one end of the inflation channel (1012) is connected to the inflation pipe (101), and the other end is connected to the air bag (105); the outer end of the inflation pipe (101) is provided with a sealing cover (104), and the sealing cover (104) is connected to the outer wall of the inflation pipe (101) through soft plastic.

7. A cystitis flushing device for hematopoietic stem cell transplantation patients according to any one of claims 1 to 6, characterized in that: The urinary catheter (1) is provided with a urinary catheter cavity (1011) in the interior, and an elastic diaphragm (1013) is provided in the middle of the urinary catheter cavity (1011). The elastic diaphragm (1013) divides the urinary catheter cavity (1011) into two left and right chamber channels. The ends of the two chamber channels are blocked and are in a hemispherical shape. The sides of the two chamber channels are provided with liquid outlets (106); the rear end of one of the chamber channels is connected to the urine collection bag pipe (102), and the rear end of the other chamber channel is connected to the flushing liquid pipe (103).

8. The device for flushing cystitis in patients with hematopoietic stem cell transplantation according to claim 7, characterized in that: The elastic diaphragm (1013) is made of rubber material with stretchability.

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