Visual auxiliary urethral catheterization device for difficult urethra for urinary surgery

Abstract

The invention discloses a difficult urethra visual auxiliary catheterization device for urinary surgery, and relates to the technical field of medical equipment. A urine channel is arranged in the insertion tube, a handheld seat is arranged at the tail part of the insertion tube, and a head part is arranged at the head part of the insertion tube; a photoelectric channel parallel to the urine channel is arranged in the tube wall of the insertion tube, and a transmission line and an illumination line are arranged in the photoelectric channel; the front surface of the head part is provided with a camera device connected with the transmission line, and is provided with a lighting device connected with the lighting line; a power supply and a data transmission connector are arranged on one side of the handheld seat, and the data transmission connector is connected with the transmission line; a liquid channel is arranged in the middle of the handheld seat, a first valve is arranged in the liquid channel, and a urination catheter connector is arranged at the tail of the liquid channel. According to the visual auxiliary catheterization device, visualization of conditions in the urethra and the bladder is achieved, and the purpose of treatment is achieved by feeding medicine into the urethra and the bladder through the arranged medicine feeding channel.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and more particularly to a visual auxiliary catheterization device for difficult urethra used in urology surgery. Background Art

[0002] Clinically, some patients experience dysuria due to anesthesia, urinary tract infections, reduced bladder contractility, prostatic hyperplasia, and pathological urethral strictures, necessitating urinary catheterization. Catheterization involves inserting a catheter through the urethra into the bladder to drain urine. There are two types of urinary catheterization: indwelling catheterization and intermittent catheterization. In the former, after successful catheterization, the catheter remains in place for a period of time. The catheter is removed as soon as possible if the patient's condition permits, but if necessary, it must be replaced regularly and retained long-term. In the latter, catheterization is performed every 4-6 hours, with the catheter removed immediately after the bladder is empty.

[0003] The traditional method relies on the catheterization operator to manually insert the catheter into the urethra and then push it into the bladder. Some patients have urethral stenosis or severe prostatic hyperplasia, resulting in a small urethral lumen, increased curvature, and possible lack of elasticity. In such cases, catheterization with a traditional catheter is difficult, even for experienced urologists. In this case, inserting a pre-curved steel bougie into the urethral lumen to increase the catheter's bending resistance can solve some difficult urethral catheterization problems. However, this method also has a high failure rate and may cause urethral perforation in an invisible state, and in severe cases, it may even lead to rectal perforation behind the urethra.

[0004] Therefore, the present invention provides a visually assisted urinary catheterization device that can be operated under visualization. Summary of the Invention

[0005] The purpose of the present invention is to provide a visual auxiliary catheterization device for difficult urethra used in urology to solve the above technical problems.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a visual auxiliary catheterization device for difficult urethra used in urology surgery, comprising an insertion tube, a urine channel is provided inside the insertion tube, a hand-held seat is provided at the tail of the insertion tube, and a head component is provided at the head of the insertion tube; a photoelectric channel parallel to the urine channel is provided in the tube wall of the insertion tube, and a transmission line and a lighting line are provided in the photoelectric channel; a camera device is provided on the front of the head component to be connected to the transmission line, and a lighting device is provided to be connected to the lighting line; a power supply and data transmission connector is provided on one side of the hand-held seat, the data transmission connector is connected to the transmission line, and the power supply is connected to the lighting line; a liquid channel is provided in the middle of the hand-held seat, a valve is provided in the liquid channel, and a urine discharge tube interface is provided at the tail of the liquid channel.

[0007] The present invention is further configured as follows: the head component includes an annular shell, the camera device and the lighting device are arranged opposite to each other on the front side of the shell; the back of the shell is provided with a second groove, and the second groove is provided with a first through hole and a second through hole opposite to each other, the transmission line passes through the second through hole to be connected to the camera device, and the lighting line passes through the first through hole to be connected to the lighting device; the inner and outer sides of the back of the shell are both provided with threads, the head of the insertion tube is provided with a first groove, and both sides of the first groove are provided with threads, and the head component is threadedly connected to the head of the insertion tube.

[0008] The present invention is further configured as follows: an air charging and discharging channel is provided on the tube wall of the insertion tube relative to the photoelectric channel, an air charging and discharging tube is provided in the air charging and discharging channel, and the handheld seat is provided with an air charging and discharging port connected to the air charging and discharging tube; an air bag is embedded on the outer side of the head component and connected to the air charging and discharging tube.

[0009] The present invention is further configured as follows: a mounting groove is provided on the outer side of the head component, an airbag is provided in the mounting groove, a through hole three is provided on the back of the head component, and the inflation and deflation air pipe passes through the through hole three and is connected to the airbag.

[0010] The present invention is further configured as follows: a front end fixing portion is provided on the front of the handheld seat, the insertion tube passes through the front end fixing portion and is connected to the handheld seat, and a urine collecting hopper is provided on the front of the front end fixing portion at the place where the insertion tube passes.

[0011] The present invention is further configured as follows: a reflux channel is provided inside the handheld seat and is connected to the liquid channel; a urination branch pipe is provided on the outside of the urinal and is connected to the inside of the urinal; the other end of the urination branch pipe is connected to the reflux channel; and a valve 2 is provided on the urination branch pipe.

[0012] The present invention is further configured as follows: a dosing tube fixedly connected to the tube wall is provided in the urine channel of the insertion tube, and a dosing channel is formed between the dosing tube and the insertion tube; a piston body is provided at the head of the dosing channel, a reset structure is provided at the tail of the dosing channel, a connecting rod is provided inside the dosing channel, one end of the connecting rod is connected to the piston body, and the other end is connected to the reset structure; a dosing branch tube and a rotating rod handle are provided on the side of the hand-held seat, the dosing branch tube is communicated with the dosing channel, the rotating rod handle is threadedly connected to the hand-held seat and the end thereof is movably connected to the reset structure.

[0013] The present invention is further configured as follows: the reset structure includes a fixed block, which is fixedly connected to the dosing tube and the insertion tube; the fixed block is provided with a movable block on one side close to the tail of the dosing tube, and a sealing piston is provided on the other side; the tail end of the connecting rod passes through the sealing piston and the fixed block and is connected to the movable block, and the connecting rod is provided with a spring between the fixed block and the movable block; the movable block is provided with a hemisphere on the side facing away from the connecting rod, and the end of the rotating rod handle is provided with a hemisphere extrusion block in contact with the hemisphere.

[0014] The present invention is further configured as follows: a hand grip is provided on the side of the hand-held seat.

[0015] The present invention is further configured as follows: a lubricating coating is provided on the surface of the insertion tube; the insertion tube is a hose, and the material thereof includes natural rubber, silicone rubber or polyvinyl chloride.

[0016] In summary, the present invention has the following beneficial effects: 1. The visual assisted urinary catheterization device of the present invention collects images of the conditions in the urethra and bladder through the camera device of the head component and transmits them to the computer and monitor to display the patient's urethral condition, thereby realizing visualization of the condition in the urethra and bladder. 2. The visual assisted urinary catheterization device of the present invention inflates the airbag through the inflation device. After the airbag is expanded, it is stuck at the connection between the bladder and the urethra, which can avoid the increased risk of surgical failure caused by the insertion tube accidentally falling off and slipping out during the operation. 3. The visual assisted urinary catheterization device of the present invention delivers medication to the inside of the urethra and bladder through the provided drug delivery channel to achieve the purpose of treatment. 4. The inner diameter of the annular shell of the head component of the visual assisted urinary catheterization device of the present invention is the same as the inner diameter of the urine channel of the insertion tube, which can provide a larger effective urination cross-section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a urinary catheterization device according to an embodiment of the present invention;

[0018] Figure 2 2. This is a rear view of the urinary catheterization device according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the front view of the head component in an embodiment of the present invention;

[0020] Figure 4 is a rear view of the head component in an embodiment of the present invention;

[0021] Figure 5 is a side view of the head component in an embodiment of the present invention;

[0022] Figure 6 Schematic diagram of the end of the insertion tube in an embodiment of the present invention;

[0023] Figure 7 This is a cross-sectional view of the handheld seat structure in an embodiment of the present invention;

[0024] Figure 8 This is a structural diagram of the tail portion of the insertion tube in an embodiment of the present invention;

[0025] Figure 9 2 is a schematic diagram of a reset structure in an embodiment of the present invention.

[0026] Figure: 1. Insertion tube; 2. Hand-held base; 3. Urine collecting hopper; 4. Head component; 5. Front fixing portion; 6. Urine tube interface; 7. Valve 1; 8. Inflating and deflating port; 9. Valve 2; 10. Medication branch; 11. Rotating handle; 12. Power supply; 13. Data transmission connector; 14. Piston; 15. Medication tube; 16. Return channel; 17. Connecting rod; 18. Fixed block; 19. Sealing piston; 20. Movable block; 21. Hemisphere 22. Hemispherical extrusion block; 23. Spring; 24. Hand grip; 25. Urinary branch tube; 101. Photoelectric channel; 102. Groove 1; 103. Air charging and discharging channel; 104. Transmission line; 105. Illumination line; 106. Air charging and discharging tube; 401. Housing; 402. Camera device; 403. Illumination device; 404. Airbag; 405. Through hole 1; 406. Through hole 2; 407. Through hole 3; 408. Mounting slot; 409. Groove 2. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-9 The present invention is described in further detail.

[0028] Example: A visual auxiliary catheterization device for difficult urethra used in urology, such as Figures 1-9As shown, the insertion tube 1 is a flexible tube made of natural rubber, silicone rubber, or polyvinyl chloride, and has a lubricating coating on its surface. A urine channel is provided inside the insertion tube 1, running through the head and tail of the insertion tube 1. A handheld holder 2 is provided at the tail of the insertion tube 1, and a head component 4 is provided at the head of the insertion tube 1. A liquid channel is provided in the middle of the handheld holder 2, running through the front and back of the handheld holder 2. A valve 7 is provided near the back of the liquid channel. The valve 7 is a ball valve, and the rotary switch of the valve 7 is provided on the side of the handheld holder 2. A urinary catheter interface 6 is provided at the tail of the liquid channel for connecting a urinary catheter. The tail of the insertion tube 1 is tightly inserted into the liquid channel. The special structure of the valve 7, a ball valve, allows a rigid bougie to pass through the valve 7 and out of the end of the insertion tube 1 when the ball valve is open, thereby improving the success rate of the operation. The insertion tube 1 has a photoelectric channel 101 parallel to the urine channel within its wall. A transmission line 104 and an illumination line 105 are provided within the photoelectric channel 101. The front of the head component 4 has a camera 402 connected to the transmission line 104, and an illumination device 403 connected to the illumination line 105. One side of the handheld base 2 has a power supply 12 and a data transmission connector 13. The data transmission connector 13 is connected to the transmission line 104, and the power supply 12 is connected to the illumination line 105. The data transmission connector 13 is connected to an external computer and display. The camera 402 is a miniature camera used to capture images and transmit the image data to an external device via the transmission line 104 for display. The illumination device 403 is powered by the power supply 12 to provide lighting for image capture. A handgrip 24 is provided on the side of the handheld base 2. The handgrip 24 is semicircular, curved, or square in shape for easy gripping and use.

[0029] The insertion tube 1 has an air-filling and air-discharging channel 103 on the wall opposite the photoelectric channel 101. An air-filling and air-discharging tube 106 is installed within this channel. The handheld base 2 has an air-filling and air-discharging port 8 on the side opposite the data transmission connector 13, which is connected to the air-filling and air-discharging tube 106. The air-filling and air-discharging port 8 is connected to an external inflation device. An airbag 404 is embedded in the outer surface of the head component 4 and connected to the air-filling and air-discharging tube 106. When the insertion tube 1 is inserted through the urethra into the bladder, the inflation device inflates the airbag 404. Once inflated, the airbag 404 latches onto the bladder-urethra connection, preventing the insertion tube 1 from accidentally falling out during surgery.

[0030] The head component 4 includes an annular housing 401, with a camera 402 and an illumination device 403 positioned opposite each other on the front of the housing 401. The housing 401 of the head component 4 is mounted in an annular shape on the head of the insertion tube 1. The inner diameter of the annular housing 401 is equal to the inner diameter of the urine passage. Urine enters the urine passage of the insertion tube 1 from the center of the head component 4, then exits the urinary tube connected to the urinary tube interface 6 through the liquid passage of the handheld holder 2. The back of the housing 401 is provided with a second groove 409, within which are opposed through-holes 1 and 2, 406. The transmission line 104 passes through through-hole 406 to connect to the camera 402, and the illumination line 105 passes through through-hole 405 to connect to the illumination device 403. The back of the housing 401 is threaded on both the inside and outside. The head of the insertion tube 1 is provided with a first groove 102, with threads on both sides. The head component 4 is threadedly connected to the head of the insertion tube 1. The outer side of the head member 4 is provided with a mounting groove 408, within which an airbag 404 is located. A third through-hole 407 is provided on the back of the head member 4, through which the inflation / deflation tube 106 passes to connect to the airbag 404. The inflation device inflates the airbag 404, which, after expansion, becomes lodged in the connection between the bladder and the urethra. When the insertion tube 1 needs to be removed, it can be deflated through the inflation / deflation port 8 and removed.

[0031] The present invention further features: a front-end fixing portion 5 integrally connected to the front of the handheld holder 2. The tail end of the insertion tube 1 passes through the front-end fixing portion 5 from the liquid channel and connects to the handheld holder 2. A urine collecting hopper 3 is provided on the front of the front-end fixing portion 5, where the insertion tube 1 passes. A reflux channel 16 is provided inside the handheld holder 2, communicating with the liquid channel. A urination branch 25 is provided on the outside of the urinal 3, communicating with the interior of the urinal 3. The other end of the urination branch 25 is connected to the reflux channel 16, and a valve 9 is provided on the urination branch 25. Urine in the urinal hopper 3 flows from the urination branch 25 into the reflux channel 16, then into the liquid channel within the handheld holder 2. It is then discharged through a urination tube connected to the urination tube interface 6 on the back of the handheld holder 2, facilitating the collection and centralized treatment of all urine.

[0032] The present invention further provides that a drug delivery tube 15 fixedly connected to the tube wall is provided within the urine channel of the insertion tube 1. The drug delivery tube 15 and the insertion tube 1 are made of the same material, forming a drug delivery channel between the drug delivery tube 15 and the insertion tube 1. After the insertion tube 1 is inserted into the urethra, surgery is performed, and after external injection of liquid medicine, the liquid medicine enters the urethra or bladder through the drug delivery channel for drug delivery treatment. The head of the drug delivery channel is provided with a piston body, the tail of the drug delivery channel is provided with a reset structure, and the interior of the drug delivery channel is provided with a connecting rod 17, one end of the connecting rod 17 is connected to the piston body, and the other end is connected to the reset structure. The connecting rod 17 is made of a hard material with a certain degree of curvature, and can also increase the hardness of the insertion tube 1 hose. The piston body seals and blocks the head of the drug delivery channel. One end of the connecting rod 17 is connected to the piston body, and the other end is connected to the reset structure. The reset structure drives the connecting rod 17 to move back and forth, so that the piston body opens and closes the head of the drug delivery channel, completing the drug delivery treatment. A medication branch 10 and a rotating handle 11 are provided on the side of the hand-held seat 2. The medication branch 10 is connected to the medication channel, and medication is administered externally through the medication branch 10. The rotating handle 11 is threadedly connected to the hand-held seat 2 and its end is movably connected to the reset structure. The reset structure is movable by rotating the rotating handle 11, so that the reset structure drives the connecting rod 17 to open or close the medication channel. The reset structure includes a fixed block 18, which is fixedly connected to the medication tube 15 and the insertion tube 1; the fixed block 18 is provided with a movable block 20 on one side near the tail of the medication tube 15, and the movable block 20 slides in the medication channel, and a sealing piston 19 is provided on the other side, and the sealing piston 19 slides in the medication channel. At the same time, the sealing piston 19 can prevent the drug solution from leaking to the inside of the fixed block 18. The tail end of the connecting rod 17 passes through the sealing piston 19 and the fixed block 18, and is connected to the movable block 20. The connecting rod 17 is provided with a spring 23 between the fixed block 18 and the movable block 20. The movable block 20 is provided with a fixed hemispherical body 21 on the side facing away from the connecting rod 17. The end of the rotating rod handle 11 is provided with a hemispherical extrusion block 22 that contacts the hemispherical body 21. When the piston body needs to be opened for medication, the rotating rod handle 11 is rotated to cause the hemispherical extrusion block 22 to squeeze the hemispherical body 21, causing the movable block 20 to move forward and compress the spring 23, pushing the connecting rod 17 to push the piston body out, opening the medication channel for medication treatment. After medication is completed, the rotating rod handle 11 is rotated so that the hemispherical extrusion block 22 no longer squeezes the hemispherical body 21. Then, under the action of the spring 23, the movable block 20 is reset. The reset of the movable block 20 drives the connecting rod 17 to move backward and reset, causing the piston body to close the medication channel.

[0033] Working principle: When the urinary catheter device of the present invention is used, the insertion tube 1 is inserted into the patient's urethra. The insertion tube 1 can move along the urethra so that the head component 4 can enter the bladder, and urination is performed through the urine channel of the insertion tube 1. The inner diameter of the annular shell 401 is the same as the inner diameter of the urine channel, which can provide a larger effective urination cross-section. The inflation and discharge port 8 is externally connected to an inflation device, which inflates the airbag 404. After the airbag 404 is expanded, it is stuck at the connection port between the bladder and the urethra, which can prevent the insertion tube 1 from accidentally falling off and slipping out during the operation. When the valve 2 9 is opened, the urine in the urinal 3 enters the reflux channel 16 from the urination branch 25 and then flows into the liquid channel inside the hand-held seat 2. The urination tube is connected to the urination tube interface 6. After opening the valve 1 7, the urine inside the patient can be discharged through the urination tube. The data transmission connector 13 is connected to an external computer and a display, and the lighting device 403 is powered by the power supply 12 to provide lighting for image acquisition. The image of the urethra and bladder is acquired by the camera device 402 and then transmitted to the computer and the display to display the patient's urethral condition. When medication is needed, the rotating rod handle 11 is rotated to cause the hemispherical squeezing block 22 to squeeze the hemispherical body 21, and the movable block 20 moves forward to compress the spring 23, pushing the connecting rod 17 to push the piston body out and open the medication channel for medication treatment. After the medication is completed, the movable block 20 is reset under the action of the spring 23, and the reset of the movable block 20 drives the connecting rod 17 to move backward to reset, so that the piston body closes the medication channel. After the urinary catheter device is used, the air bag 404 is deflated through the inflation and deflation port 8, and the insertion tube 1 is taken out.

[0034] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A visual auxiliary catheterization device for difficult urethra used in urology, characterized by: The invention comprises an insertion tube (1), wherein a urine channel is provided inside the insertion tube (1), a hand-held seat (2) is provided at the tail of the insertion tube (1), and a head component (4) is provided at the head of the insertion tube (1); a photoelectric channel (101) parallel to the urine channel is provided inside the tube wall of the insertion tube (1), and a transmission line (104) and an illumination line (105) are provided inside the photoelectric channel (101); a camera device (402) connected to the transmission line (104) and an illumination device (403) connected to the illumination line (105) are provided on the front of the head component (4); a power supply (12) and a data transmission connector (13) are provided on one side of the hand-held seat (2), the data transmission connector (13) is connected to the transmission line (104), and the power supply (12) is connected to the illumination line (105); a liquid channel is provided in the middle of the hand-held seat (2), a valve (7) is provided in the liquid channel, and a urine discharge tube interface (6) is provided at the tail of the liquid channel.

2. The visual assisted catheterization device for difficult urethra used in urology according to claim 1, characterized in that: The head component (4) includes an annular shell (401), and the camera device (402) and the lighting device (403) are arranged oppositely on the front of the shell (401); the back of the shell (401) is provided with a groove 2 (409), and the groove 2 (409) is provided with a through hole 1 (405) and a through hole 2 (406) oppositely, the transmission line (104) passes through the through hole 2 (406) to be connected to the camera device (402), and the lighting line (105) passes through the through hole 1 (405) to be connected to the lighting device (403); the inner and outer sides of the back of the shell (401) are both provided with threads, the head of the insertion tube (1) is provided with a groove 1 (102), and both sides of the groove 1 (102) are provided with threads, and the head component (4) is threadedly connected to the head of the insertion tube (1).

3. A visual assisted catheterization device for difficult urethra used in urology according to claim 1 or 2, characterized in that: The insertion tube (1) is provided with an air charging and discharging channel (103) on its wall relative to the photoelectric channel (101); an air charging and discharging tube (106) is provided in the air charging and discharging channel (103); the handheld seat (2) is provided with an air charging and discharging port (8) connected to the air charging and discharging tube (106); and an air bag (404) is embedded on the outer side surface of the head component (4) and connected to the air charging and discharging tube (106).

4. The visual auxiliary catheterization device for difficult urethra used in urology according to claim 3, characterized in that: The outer side surface of the head component (4) is provided with a mounting groove (408), an air bag (404) is provided in the mounting groove (408), a through hole three (407) is provided on the back of the head component (4), and the inflation and deflation tube (106) passes through the through hole three (407) and is connected to the air bag (404).

5. The device for visually assisting urinary catheterization of difficult urethra used in urology according to claim 1, characterized in that: The front side of the hand-held seat (2) is provided with a front end fixing portion (5), the insertion tube (1) passes through the front end fixing portion (5) and is connected to the hand-held seat (2), and the front side of the front end fixing portion (5) is provided with a urine collecting hopper (3) at the point where the insertion tube (1) passes through.

6. The visual auxiliary catheterization device for difficult urethra used in urology according to claim 5, characterized in that: The interior of the handheld seat (2) is provided with a reflux channel (16) communicating with the liquid channel, and the outside of the urine receiving hopper (3) is provided with a urination branch pipe (25) communicating with the interior of the urine receiving hopper (3), the other end of the urination branch pipe (25) is connected to the reflux channel (16), and the urination branch pipe (25) is provided with a second valve (9).

7. The visual auxiliary catheterization device for difficult urethra used in urology according to claim 1, characterized in that: A drug administration tube (15) fixedly connected to the tube wall is provided in the urine channel of the insertion tube (1), and a drug administration channel is formed between the drug administration tube (15) and the insertion tube (1); a piston body is provided at the head of the drug administration channel, a reset structure is provided at the tail of the drug administration channel, and a connecting rod (17) is provided inside the drug administration channel, one end of the connecting rod (17) is connected to the piston body, and the other end is connected to the reset structure; a drug administration branch tube (10) and a rotating rod handle (11) are provided on the side of the hand-held seat (2), the drug administration branch tube (10) is communicated with the drug administration channel, the rotating rod handle (11) is threadedly connected to the hand-held seat (2), and the end thereof is movably connected to the reset structure.

8. The visual assisted catheterization device for difficult urethra used in urology according to claim 7, characterized in that: The reset structure comprises a fixed block (18), which is fixedly connected to the drug delivery tube (15) and the insertion tube (1); a movable block (20) is provided on one side of the fixed block (18) close to the tail of the drug delivery tube (15), and a sealing piston (19) is provided on the other side; the tail end of the connecting rod (17) passes through the sealing piston (19) and the fixed block (18) and is connected to the movable block (20), and the connecting rod (17) is provided with a spring (23) between the fixed block (18) and the movable block (20); a hemisphere (21) is provided on the side of the movable block (20) facing away from the connecting rod (17), and a hemisphere extrusion block (22) is provided at the end of the rotating rod handle (11) to contact the hemisphere (21).

9. The visual auxiliary catheterization device for difficult urethra used in urology according to claim 1, characterized in that: A hand grip (24) is provided on the side of the hand-held seat (2).

10. The visual auxiliary catheterization device for difficult urethra used in urology according to claim 1, characterized in that: The surface of the insertion tube (1) is provided with a lubricating coating. The insertion tube (1) is a hose, and its material includes natural rubber, silicone rubber or polyvinyl chloride.

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