Anti-falling urinary catheterization device for pediatric urinary surgery

Abstract

The invention relates to the field of urinary catheterization devices, in particular to an anti-falling urinary catheterization device for pediatric urinary surgery. Comprising a connector, a connector is fixedly communicated with the connector, one end of the connector is detachably, fixedly and hermetically connected with a vacuum pump, a blocking valve is arranged on the connector between the vacuum pump and the connector, the other end of the connector is detachably, fixedly and hermetically connected with one end of a catheter, and the other end of the catheter is fixedly communicated with a shell. A floating block is slidably arranged at the end, away from the catheter, of the shell, a plurality of urination holes are evenly formed in the circumference of the end, away from the catheter, of the shell, and the urination holes can be sealed and blocked when the floating block makes contact with the shell. Before the urethral catheter is inserted, the vacuum pump can vacuumize the inside of the urethral catheter, the diameter of the urethral catheter can be reduced, the urethral catheter can be conveniently inserted after the diameter of the urethral catheter is reduced, the pain of a patient can be reduced in the urethral catheter insertion process, and the urethral mucosa is prevented from being damaged by the urethral catheter.

Description

Technical Field

[0001] The invention relates to the field of urinary catheterization devices, in particular to an anti-falling urinary catheterization device for pediatric urology. Background Art

[0002] A urinary catheter is a flexible tube that is commonly used clinically and inserted into the bladder through the urethra to drain urine. It is generally made of natural rubber, silicone rubber or polyvinyl chloride. When in use, the end of the catheter outside the body is connected to a urine bag to collect urine.

[0003] The process of inserting a urinary catheter will cause great pain to the child. When the catheter is inserted into the urethra, when the friction between the outer wall of the catheter and the inner wall of the urethra is large, it is easy to damage the urethral mucosa, causing edema and infection. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a pediatric urology anti-dropout catheterization device which can reduce the diameter of the catheter when inserting it, reduce the friction between the catheter and the urethra, and avoid damage to the urethral mucosa during the insertion of the catheter. The catheter of the catheter device can automatically recover after the insertion is completed and has a good anti-dropout effect.

[0005] In order to achieve the above object, the technical solution provided by the present invention is:

[0006] The invention discloses an anti-falling urinary catheter device for pediatric urology, comprising a connector, a connector head is fixedly connected to the connector, one end of the connector is detachably fixedly sealed and connected to a vacuum pump, a blocking valve is arranged on the connector between the vacuum pump and the connector head, the other end of the connector is detachably fixedly sealed and connected to one end of a urinary catheter, the other end of the urinary catheter is fixedly connected to a shell, a floating block is slidably arranged at one end of the shell away from the urinary catheter, a plurality of urination holes are evenly distributed on the circumference of one end of the shell away from the urinary catheter, and the floating block can seal and block the plurality of urination holes when in contact with the shell, the urinary catheter is made of elastic rubber material, the urinary catheter is formed by a first thin wall, a third thick wall, a second thin wall, a first thick wall, a third thin wall and a second thick wall, the third thin wall is arranged opposite to the third thick wall, the first thin wall and the second thin wall and the first thick wall and the second thick wall are symmetrically arranged according to the midline of the third thin wall, the lengths of the first thin wall and the second thin wall are equal to and greater than the length of the third thin wall, and the lengths of the first thick wall and the second thick wall are equal to and greater than the length of the third thick wall.

[0007] Specifically, an elastic sleeve is fixed on the outside of the shell, and a plurality of long grooves are evenly distributed on the circumference of the shell side wall inside the elastic sleeve. A rotating plate is elastically rotatably connected in the long grooves. One end of the rotating plate is tightly against the elastic sleeve and makes the elastic sleeve part protrude toward the outside of the shell.

[0008] Specifically, both ends of the elastic sleeve are fixedly and sealedly connected to the shell.

[0009] Specifically, one end of the rotating plate is rotatably connected to the shell through a rotating shaft, a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is fixedly connected to the shell, and the other end of the torsion spring is fixedly connected to the rotating plate.

[0010] Specifically, the blocking valve component includes a sleeve, which passes through the connector. The sleeve is provided with a through hole connected to the connector. The inner thread of the sleeve is sealed with a screw. After the screw seals the through hole, the vacuum pump is not connected to the catheter.

[0011] Specifically, the other end of the connector is fixedly and sealedly connected with a threaded sleeve, and one end of the catheter is threadedly and sealedly connected to the threaded sleeve.

[0012] Specifically, a circular hole is opened in the center of one end of the shell away from the catheter, the limiting rod passes through the circular hole, the limiting rod is slidingly and sealingly connected to the shell, a retaining ring is fixed to one end of the limiting rod in the shell, and the floating block is fixedly connected to one end of the limiting rod outside the shell.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Before inserting the catheter, the vacuum pump can draw a vacuum inside the catheter, so that the diameter of the catheter can be reduced. After the diameter of the catheter is reduced, it is convenient to insert the catheter, and the patient's pain can be reduced during the process of inserting the catheter, avoiding damage to the urethral mucosa caused by the catheter.

[0015] 2. The hardness of the catheter increases after the diameter is reduced, so it is convenient to insert the catheter and can improve the efficiency of catheter insertion.

[0016] 3. When the catheter is vacuumed, the elastic sleeve contracts and the rotating plate is rotated into the long groove as a whole, which is convenient for inserting the catheter. When the shell enters the patient's bladder, the pressure inside the catheter is restored to normal, and then one end of the rotating plate is pressed against the elastic sleeve under the elastic force of the torsion spring, so that the elastic sleeve part protrudes toward the outside of the shell, which can prevent the catheter from falling out of the urethra. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the device.

[0018] Figure 2 A schematic diagram of the shell.

[0019] Figure 3 It is a schematic diagram of the separate structure of the floating block and the shell.

[0020] Figure 4 A cross-sectional view of the shell.

[0021] Figure 5 for Figure 4 Magnified view of area A.

[0022] Figure 6 A cross-sectional view of the connector.

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of a urinary catheter.

[0024] The names of the parts in the accompanying drawings are: 1. Connector; 2. Vacuum pump; 3. Connector; 4. Sleeve; 5. Screw; 6. Threaded sleeve; 7. Catheter; 701. First thin wall; 702. Second thin wall; 703. Third thin wall; 704. First thick wall; 705. Second thick wall; 706. Third thick wall; 8. Shell; 9. Elastic sleeve; 10. Long groove; 11. Rotating shaft; 12. Rotating plate; 13. Urinating hole; 14. Round hole; 15. Limit rod; 16. Float. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] like Figure 1-Figure 7 As shown, the anti-dropping urinary catheter device for pediatric urology includes a connector 1, a connector 3 is fixedly connected to the connector 1, one end of the connector 1 is detachably fixedly sealedly connected to a vacuum pump 2, a blocking valve is provided on the connector 1 between the vacuum pump 2 and the connector 3, and the other end of the connector 1 is detachably fixedly sealedly connected to one end of a urinary catheter 7. Specifically, the other end of the connector 1 is fixedly sealedly connected to a threaded sleeve 6, and one end of the urinary catheter 7 is threadedly sealedly connected to the threaded sleeve 6.

[0027] The blocking valve member includes a sleeve 4, which passes through the connector 1. The sleeve 4 is provided with a through hole connected to the connector 1. The sleeve 4 is internally threaded and sealed with a screw 5. After the screw 5 seals the through hole, the vacuum pump 2 is not connected to the urinary catheter 7.

[0028] The other end of the catheter 7 is fixedly connected to the housing 8, and a floating block 16 is slidably provided at the end of the housing 8 away from the catheter 7. Specifically, a circular hole 14 is provided at the center of the end of the housing 8 away from the catheter 7, a limiting rod 15 passes through the circular hole 14, the limiting rod 15 is slidably and sealedly connected to the housing 8, a retaining ring is fixed at one end of the limiting rod 15 in the housing 8, and the floating block 16 is fixedly connected to one end of the limiting rod 15 outside the housing 8.

[0029] A plurality of urination holes 13 are evenly distributed around the circumference of one end of the shell 8 away from the urinary catheter 7 . When the floating block 16 contacts the shell 8 , the plurality of urination holes 13 can be sealed.

[0030] An elastic sleeve 9 is fixed to the outside of the shell 8. Specifically, both ends of the elastic sleeve 9 are fixedly and sealedly connected to the shell 8. A plurality of long grooves 10 are evenly distributed on the circumference of the side wall of the shell 8 inside the elastic sleeve 9, and a rotating plate 12 is elastically and rotatably connected in the long grooves 10. Specifically, one end of the rotating plate 12 is rotatably connected to the shell 8 through a rotating shaft 11, and a torsion spring is sleeved on the rotating shaft 11, one end of the torsion spring is fixedly connected to the shell 8, and the other end of the torsion spring is fixedly connected to the rotating plate 12. One end of the rotating plate 12 is tightly against the elastic sleeve 9 and makes the elastic sleeve 9 partly protrude toward the outside of the shell 8.

[0031] like Figure 7 As shown, the urinary catheter 7 is made of elastic rubber material. The urinary catheter 7 is formed by the first thin wall 701, the third thick wall 706, the second thin wall 702, the first thick wall 704, the third thin wall 703 and the second thick wall 705. The third thin wall 703 is arranged opposite to the third thick wall 706. The first thin wall 701 and the second thin wall 702 and the first thick wall 704 and the second thick wall 705 are symmetrically arranged according to the midline of the third thin wall 703. The lengths of the first thin wall 701 and the second thin wall 702 are equal and greater than the length of the third thin wall 703. The lengths of the first thick wall 704 and the second thick wall 705 are equal and greater than the length of the third thick wall 706.

[0032] Before inserting the catheter 7, the connector 3 is blocked. The screw 5 is rotated so that the screw 5 and the perforation of the sleeve 4 are misaligned. At this time, the connector 1 connects the catheter 7 and the vacuum pump 2, and the vacuum pump 2 is started to extract the air in the catheter 7. When the vacuum pump 2 extracts the air in the catheter 7, the floating block 16 contacts the shell 8 and blocks the urination hole 13. When the air in the catheter 7 is extracted, the first thin wall 701, the second thin wall 702 and the third thick wall 706 move toward the center of the catheter 7. At the same time, the third thin wall 703 bends, and the first thick wall 704 and the second thick wall 705 approach each other.

[0033] When the vacuum pump 2 evacuates the catheter 7, the elastic sleeve 9 contracts and causes the rotating plate 12 to rotate into the long groove 10, preventing the elastic sleeve 9 portion protruding outward from the shell 8 from hindering the movement of the shell 8 in the urethra when the catheter 7 is inserted.

[0034] After the vacuum pump 2 evacuates the catheter 7, the diameter of the catheter 7 is reduced, and the catheter 7 can be prevented from causing damage to the urethral mucosa during the insertion of the catheter 7. After the vacuum pump 2 evacuates the catheter 7, the first thin wall 701, the third thick wall 706, the second thin wall 702, the first thick wall 704, the third thin wall 703, and the second thick wall 705 of the catheter 7 are close to each other, so the hardness of the catheter 7 increases, so that the catheter 7 is convenient to move in the urethra during the insertion of the catheter 7.

[0035] When the housing 8 enters the patient's bladder, the connector 3 is opened to allow outside air to enter the catheter 7. When the pressure inside the catheter 7 returns to normal, the catheter 7 is restored and its outer wall squeezes the urethra. At the same time, under the elastic force of the torsion spring, one end of the rotating plate 12 rotates toward the outside of the housing 8. After the rotating plate 12 rotates, one end of the rotating plate 12 is tightly pressed against the elastic sleeve 9 and makes the elastic sleeve 9 partly protrude toward the outside of the housing 8. The part of the elastic sleeve 9 protruding toward the outside of the housing 8 can prevent the catheter 7 from falling off from the urethra.

[0036] When urine is produced in the patient's bladder, the urine will cause the float 16 to move upward, thereby opening the urination hole 13 , and the urine will enter the urinary catheter 7 from the urination hole 13 and then be discharged through the connector 3 .

[0037] When the catheter 7 needs to be pulled out, the connector 1 is connected to the vacuum pump 2, and the vacuum pump 2 is started to evacuate the catheter 7. When the vacuum pump 2 evacuates the catheter 7, the float 16 contacts the shell 8 and blocks the urination hole 13. After the diameter of the catheter 7 is reduced, the rotating plate 12 is screwed into the long groove 10 as a whole, and then the catheter 7 can be pulled out from the patient's urethra.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-dropping urinary catheterization device for pediatric urology, comprising a connector (1), a connector (3) fixedly connected to the connector (1), and a vacuum pump (2) detachably fixedly sealed at one end of the connector (1), characterized in that: A blocking valve is provided on the connector (1) between the vacuum pump (2) and the connector (3); the other end of the connector (1) is detachably fixedly sealed to one end of a urinary catheter (7); the other end of the urinary catheter (7) is fixedly connected to a housing (8); a floating block (16) is slidably provided on the end of the housing (8) away from the urinary catheter (7); a plurality of urinary holes (13) are evenly distributed around the circumference of the end of the housing (8) away from the urinary catheter (7); the floating block (16) can seal and block the plurality of urinary holes (13) when in contact with the housing (8); the urinary catheter (7) is made of an elastic rubber material; the urinary catheter (7) is composed of a first thin wall (701) and a third thick wall (702). The third thin wall (703) and the second thick wall (706) are surrounded by a first thin wall (701), a second thin wall (702), a first thick wall (704), a third thin wall (703) and a second thick wall (705); the third thin wall (703) and the third thick wall (706) are arranged opposite to each other; the first thin wall (701) and the second thin wall (702) as well as the first thick wall (704) and the second thick wall (705) are arranged symmetrically according to the midline of the third thin wall (703); the lengths of the first thin wall (701) and the second thin wall (702) are equal to and greater than the length of the third thin wall (703); the lengths of the first thick wall (704) and the second thick wall (705) are equal to and greater than the length of the third thick wall (706).

2. The anti-fall-off catheterization device for pediatric urology according to claim 1, characterized in that: An elastic sleeve (9) is fixed on the outer side of the shell (8), and a plurality of long grooves (10) are evenly distributed on the circumference of the side wall of the shell (8) inside the elastic sleeve (9). A rotating plate (12) is elastically rotatably connected in the long grooves (10), and one end of the rotating plate (12) is tightly against the elastic sleeve (9) and causes a portion of the elastic sleeve (9) to protrude toward the outer side of the shell (8).

3. The anti-fall-off catheterization device for pediatric urology according to claim 2, characterized in that: Both ends of the elastic sleeve (9) are fixedly and sealingly connected to the housing (8).

4. The anti-dropping urinary catheterization device for pediatric urology according to claim 2, characterized in that: One end of the rotating plate (12) is rotatably connected to the housing (8) via a rotating shaft (11); a torsion spring is sleeved on the rotating shaft (11); one end of the torsion spring is fixedly connected to the housing (8); and the other end of the torsion spring is fixedly connected to the rotating plate (12).

5. The anti-dropping urinary catheterization device for pediatric urology according to claim 1, characterized in that: The blocking valve component comprises a sleeve (4), the sleeve (4) passes through the connector (1), a through hole connected to the connector (1) is formed on the sleeve (4), a screw (5) is sealedly connected to the inner thread of the sleeve (4), and after the screw (5) seals the through hole, the vacuum pump (2) is not connected to the urinary catheter (7).

6. The anti-dropping urinary catheterization device for pediatric urology according to claim 1, characterized in that: The other end of the connector (1) is fixedly and sealingly connected to a threaded sleeve (6), and one end of the urinary catheter (7) is threadedly and sealingly connected to the threaded sleeve (6).

7. The anti-dropping urinary catheterization device for pediatric urology according to claim 1, characterized in that: A circular hole (14) is provided at the center of one end of the shell (8) away from the urinary catheter (7), a limiting rod (15) passes through the circular hole (14), the limiting rod (15) is slidably and sealingly connected to the shell (8), a retaining ring is fixed to one end of the limiting rod (15) in the shell (8), and a floating block (16) is fixedly connected to one end of the limiting rod (15) outside the shell (8).

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