Ureteroscope postoperative calculus removing device

Abstract

The utility model discloses a flexible ureteroscope postoperative calculus removal device, and particularly relates to the technical field of medical instruments, the flexible ureteroscope postoperative calculus removal device comprises a calculus suction hose, the outer surface of the calculus suction hose is fixedly connected with a water passing sheath, one end of the calculus suction hose is in threaded connection with a guide head, and the other end of the calculus suction hose is fixedly provided with a first negative pressure pump; the output end of the first negative pressure pump is fixedly connected with a water outlet pipe, the bottom of the water outlet pipe is fixedly connected with a water storage tank, a filtering assembly is arranged in the water storage tank, and a second negative pressure pump is fixedly installed at the front end of the water storage tank. According to the flexible ureteroscope postoperative calculus removing device, by designing the filtering assembly, extracted calculus can be collected, meanwhile, normal saline extracted along with the calculus is filtered, and the normal saline is extracted from the water storage tank through the second negative pressure pump to flush a target position; and residual calculi in the kidney are continuously pumped out through the first negative pressure pump, circulation is achieved, and the working efficiency of medical staff is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a ureterolithiasis device after flexible ureteroscope surgery. Background Art

[0002] Ureteroscopy is a very advanced minimally invasive surgical technique for treating urinary stones and other kidney and ureteral problems. This surgery uses a flexible scope inserted into the patient's urethra, bladder, and ureters to observe and treat problems in these areas. During the operation, the doctor will use lasers or mechanical instruments to fragment or remove urinary stones and perform other necessary operations.

[0003] Chinese patent document CN210785596U discloses a device for stone removal after ureteroscopy, including a bracket, a drainage tube fixed on the bracket, one end of the drainage tube is connected to a catheter, and the other end is connected to a stone collection box, the drainage tube includes a first branch tube and a second branch tube, the first branch tube, the second branch tube, and the catheter are connected to form a three-way tube, and the stone collection box is connected to a negative pressure machine. The device mentioned in the above document is used for stone removal after ureteroscopy, can increase the stone removal rate, and avoid ureteral blockage during the stone removal process.

[0004] The above patent document can realize the stone removal work after ureteroscopy, but it is necessary to continuously inject new saline to flush the target position and then extract it. It is impossible to achieve simultaneous injection and extraction, which is very inconvenient. At the same time, it is easy to cause damage to the inner wall of the ureter during the extraction process. Utility Model Content

[0005] The main purpose of the utility model is to provide a stone removal device after ureteroscopy, which can effectively solve the problem that water injection and extraction cannot be carried out simultaneously and the inner wall of the ureter is easily damaged during the extraction process.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A postoperative stone removal device for ureteroscopy comprises a stone suction hose, the outer surface of which is fixedly connected to a water sheath, one end of which is threadedly connected to a guide head, the other end of which is fixedly installed with a negative pressure pump 1, the output end of which is fixedly connected to a water outlet pipe, the bottom of which is fixedly connected to a water storage tank, and the inner cavity of the water outlet pipe is communicated with the inner cavity of the water storage tank, the top of the water storage tank is fixedly connected to a water injection pipe, a filter assembly is arranged inside the water storage tank, a negative pressure pump 2 is fixedly installed at the front end of the water storage tank, and a water outlet hose is fixedly connected between the output end of the negative pressure pump 2 and the outer surface of the water sheath.

[0008] Preferably, the water-permeable sheath includes a main body, the inner surface of the main body is fixedly connected to the outer surface of the stone-absorbing hose, a water storage tank is provided inside the main body, a plurality of drainage holes distributed in a circular array are provided at the front end of the main body, and a positioning hole is provided on the outer surface of the main body.

[0009] Preferably, the guide head includes a main body 2, the inner surface of the main body 2 is threadedly connected to the outer surface of the stone suction hose, a drainage groove is provided inside the main body 2, and the inner cavity of the drainage groove is communicated with the outside world, a water-passing plate is fixedly connected to the inner cavity of the drainage groove, and two symmetrically distributed water outlet holes are provided at the front end of the main body 2.

[0010] Preferably, the filter assembly includes two guide rails, both of which are fixedly connected to the top wall of the water tank, a collection box is slidably connected between the two guide rails, and a filter plate is fixedly connected in the inner cavity of the water tank.

[0011] Preferably, the collection box includes a box body, which is slidably connected between two guide rails, the front and rear ends of the box body are fixedly connected with sliders matching the guide rails, one end of the box body is fixedly connected with a handle, and the four sides and the bottom of the box body are provided with a plurality of filter holes distributed in a linear array.

[0012] Preferably, a plurality of through holes in a circular array are provided on the outer surface of the water-passing plate, and the water outlet holes are communicated with the inner cavity of the drainage groove.

[0013] Preferably, an opening and closing door is rotatably connected to one end of the water tank close to the handle.

[0014] Preferably, the caliber of the water hose is the same as that of the positioning hole, and the water hose is communicated with the inner cavity of the water storage tank.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model can collect the extracted stones through the filter component, filter the physiological saline extracted at the same time as the stones, and draw it from the water tank through the negative pressure pump 2 to flush the target position, and continue to draw out the remaining stones in the kidney through the negative pressure pump 1 to achieve circulation and improve the work efficiency of medical staff.

[0017] 2. The utility model can expand the ureter by setting up a water-permeable sheath, and at the same time protect the inner wall of the ureter, which is convenient for subsequent extraction. During the actual operation, the negative pressure pump 2 injects the physiological saline in the water storage tank into the water storage tank. At this time, the water-permeable plate can hinder the water flow, so that the body of the water-permeable sheath expands, thereby expanding the inner wall of the ureter and improving the subsequent extraction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic cutaway diagram of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the water pipe structure of the utility model;

[0021] Figure 4 It is a schematic cross-sectional view of the water pipe structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the guide head structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the collection box of the utility model;

[0024] Figure 7 For the utility model Figure 4 Enlarged schematic diagram at point A in the middle.

[0025] In the figure: 1. stone suction hose; 2. water sheath; 21. main body 1; 22. water storage tank; 23. drainage hole; 24. positioning hole; 3. guide head; 31. main body 2; 32. drainage trough; 33. water plate; 34. water outlet; 4. negative pressure pump 1; 5. water outlet pipe; 6. water storage tank; 7. water injection pipe; 8. filter assembly; 81. guide rail; 82. collection box; 821. box body; 822. slider; 823. handle; 824. filter hole; 83. filter plate; 9. negative pressure pump 2; 10. water hose. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1 , Figure 3 , Figure 4 and Figure 7 As shown, a postoperative stone removal device for ureteroscopy includes a stone suction hose 1, the outer surface of the stone suction hose 1 is fixedly connected to a water sheath 2, the water sheath 2 includes a body 21, the inner surface of the body 21 is fixedly connected to the outer surface of the stone suction hose 1, a water storage tank 22 is provided inside the body 21, a plurality of drainage holes 23 distributed in a circular array are provided at the front end of the body 21, and a positioning hole 24 is provided on the outer surface of the body 21, and the drainage holes 23 are provided to facilitate the control of the flow rate of physiological saline in the inner cavity of the water storage tank 22;

[0028] like Figure 2 and Figure 5As shown, one end of the stone suction hose 1 is threadedly connected with a guide head 3, and the guide head 3 includes a body 2 31. The inner surface of the body 2 31 and the outer surface of the stone suction hose 1 are threadedly connected. A drainage groove 32 is provided inside the body 2 31, and the inner cavity of the drainage groove 32 is communicated with the outside. A water-passing plate 33 is fixedly connected to the inner cavity of the drainage groove 32. Two symmetrically distributed water outlet holes 34 are provided at the front end of the body 2 31. The outer surface of the water-passing plate 33 is provided with a plurality of through holes in a circular array, and the water outlet holes 34 are communicated with the inner cavity of the drainage groove 32. Physiological saline flows in the water storage tank 22 and enters the drainage groove 32 through the drainage holes 23. Due to the influence of the through holes of the water-passing plate 33, the flow rate of physiological saline is reduced, so that the internal pressure of the body 21 of the water-passing sheath 2 becomes larger, and the outer wall of the body 21 is expanded outward to expand the inner wall of the ureter, which is convenient for subsequent stone removal operations.

[0029] like Figure 2 and Figure 6 As shown, the other end of the stone suction hose 1 is fixedly installed with a negative pressure pump 4, the output end of the negative pressure pump 4 is fixedly connected with a water outlet pipe 5, the bottom of the water outlet pipe 5 is fixedly connected with a water storage tank 6, and the inner cavity of the water outlet pipe 5 is communicated with the inner cavity of the water storage tank 6, the top of the water storage tank 6 is fixedly connected with a water injection pipe 7, and a filter assembly 8 is arranged inside the water storage tank 6, and the filter assembly 8 includes two guide rails 81, both of which are fixedly connected to the top wall of the water storage tank 6, and a collection box is slidably connected between the two guide rails 81. 82, the collection box 82 includes a box body 821, the box body 821 is slidably connected between the two guide rails 81, the front and rear ends of the box body 821 are fixedly connected with sliders 822 matching the guide rails 81, one end of the box body 821 is fixedly connected with a handle 823, the four sides and the bottom of the box body 821 are provided with a plurality of filter holes 824 distributed in a linear array, the inner cavity of the water storage tank 6 is fixedly connected with a filter plate 83, and the end of the water storage tank 6 close to the handle 823 is rotatably connected with an opening and closing door;

[0030] When it is necessary to clean the stones inside the collection box 82, the device is turned off, the door is opened, the handle 823 is pulled, and the box body 821 is pulled out of the guide rail 81 for cleaning.

[0031] like Figure 2 As shown, a negative pressure pump 29 is fixedly installed at the front end of the water storage tank 6, and a water hose 10 is fixedly connected between the output end of the negative pressure pump 29 and the outer surface of the water sheath 2. The caliber of the water hose 10 is the same as the caliber of the positioning hole 24, and the water hose 10 is connected to the inner cavity of the water storage tank 22;

[0032] Physiological saline is injected into the water storage tank 6 through the water injection pipe 7, and then the guide head 3 drives the stone suction hose 1 and the water sheath 2 to enter the designated part through the urethra and ureter, and then the negative pressure pump 2 9 is started to inject physiological saline into the target part and flush the internal stones, and then the negative pressure pump 1 4 is started to draw the mixture of stones and physiological saline into the collection box 82, and the solid stones are retained in the collection box 82. The physiological saline is filtered through the filter plate 83, and the filtered physiological saline is drawn out again by the negative pressure pump 2 9, and then the above process is repeated.

[0033] The negative pressure pump 1 4, negative pressure pump 2 9 and opening and closing door used in this scheme are conventional equipment in the prior art;

[0034] The function of the negative pressure pump 4 is mainly to draw the stones and saline in the target area through the stone suction hose 1 and enter the collection box 82 in the filter assembly 8 for collection;

[0035] The function of the negative pressure pump 29 is mainly to extract the saline solution inside the water storage tank 6 and enter the water storage tank 22 through the water hose 10 for recycling;

[0036] The opening and closing of the door is convenient for medical personnel to take the collection box 82 out of the water storage tank 6. In the closed state, it is necessary to ensure that the water storage tank 6 does not flow out from the door gap;

[0037] In the actual implementation process, it is only necessary to meet the above requirements and the design can be carried out according to the actual situation.

[0038] The working principle of the utility model is as follows: first, physiological saline is injected into the water storage tank 6 through the water injection pipe 7, and then the guide head 3 drives the stone suction hose 1 and the water sheath 2 to enter the designated part through the urethra and ureter, and then the negative pressure pump 2 is started to inject physiological saline into the target part and flush the internal stones, and then the negative pressure pump 1 is started to draw the mixed liquid of stones and physiological saline into the collection box 82, and the solid stones are retained in the collection box 82, the physiological saline is filtered through the filter plate 83, and the filtered physiological saline is drawn out again by the negative pressure pump 29, and then the above process is repeated.

[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A postoperative stone removal device for flexible ureteroscopy, comprising a stone suction hose (1), characterized in that: The outer surface of the stone suction hose (1) is fixedly connected with a water sheath (2); one end of the stone suction hose (1) is threadedly connected with a guide head (3); the other end of the stone suction hose (1) is fixedly installed with a negative pressure pump (4); the output end of the negative pressure pump (4) is fixedly connected with a water outlet pipe (5); the bottom of the water outlet pipe (5) is fixedly connected with a water storage tank (6); the inner cavity of the water outlet pipe (5) is communicated with the inner cavity of the water storage tank (6); the top of the water storage tank (6) is fixedly connected with a water injection pipe (7); a filter assembly (8) is arranged inside the water storage tank (6); a negative pressure pump (9) is fixedly installed at the front end of the water storage tank (6); a water hose (10) is fixedly connected between the output end of the negative pressure pump (9) and the outer surface of the water sheath (2).

2. The postoperative stone removal device for flexible ureteroscopy according to claim 1, characterized in that: The water-permeable sheath (2) comprises a main body (21), the inner surface of the main body (21) and the outer surface of the stone-absorbing hose (1) are fixedly connected, a water storage tank (22) is provided inside the main body (21), a plurality of drainage holes (23) distributed in a circular array are provided at the front end of the main body (21), and a positioning hole (24) is provided on the outer surface of the main body (21).

3. The postoperative stone removal device for flexible ureteroscopy according to claim 1, characterized in that: The guide head (3) comprises a second body (31), the inner surface of the second body (31) and the outer surface of the stone suction hose (1) are threadedly connected, a drainage groove (32) is provided inside the second body (31), and the inner cavity of the drainage groove (32) is communicated with the outside, a water-passing plate (33) is fixedly connected to the inner cavity of the drainage groove (32), and two symmetrically distributed water outlet holes (34) are provided at the front end of the second body (31).

4. The postoperative stone removal device for flexible ureteroscopy according to claim 1, characterized in that: The filter assembly (8) comprises two guide rails (81), the two guide rails (81) are fixedly connected to the top wall of the water storage tank (6), a collection box (82) is slidably connected between the two guide rails (81), and a filter plate (83) is fixedly connected in the inner cavity of the water storage tank (6).

5. The postoperative stone removal device for flexible ureteroscopy according to claim 4, characterized in that: The collection box (82) comprises a box body (821), the box body (821) is slidably connected between two guide rails (81), the front end and the rear end of the box body (821) are fixedly connected with sliders (822) matching the guide rails (81), one end of the box body (821) is fixedly connected with a handle (823), and the four sides and the bottom of the box body (821) are provided with a plurality of filtering holes (824) distributed in a linear array.

6. The post-operative stone removal device for flexible ureteroscopy according to claim 3, characterized in that: The outer surface of the water-passing plate (33) is provided with a plurality of through holes in an annular array, and the water outlet hole (34) is in communication with the inner cavity of the drainage groove (32).

7. The post-operative stone removal device for flexible ureteroscopy according to claim 5, characterized in that: One end of the water tank (6) close to the handle (823) is rotatably connected to an opening and closing door.

8. The post-operative stone removal device for flexible ureteroscopy according to claim 2, characterized in that: The caliber size of the water hose (10) is the same as the caliber size of the positioning hole (24), and the water hose (10) is in communication with the inner cavity of the water storage tank (22).

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