A urinary catheterization device used for nursing urinary patients

Abstract

The present invention belongs to the technical field of urinary catheters, and relates to a urinary catheter device used for nursing urinary patients. The front end of the urinary catheter body of the present invention is in an arc shape and is provided with a urination hole; a plurality of infiltration mechanisms are sequentially arranged along the axial direction on the outer periphery of the urinary catheter body. The infiltration mechanism includes a liquid storage cavity for storing lubricating oil, a permeation layer and a slip ring. A plurality of infiltration holes are provided on the permeation layer. As the urinary catheter body moves into the urethra, a plurality of permeation layers gradually enter the urethra in sequence. When the permeation layer enters the urethra, the corresponding slip ring will abut against the urethral opening, and then as the urinary catheter body moves forward, the slip ring moves toward the end of the urinary catheter body, and the lubricating oil in the corresponding liquid storage cavity enters the interlayer cavity and seeps into the urethra through the permeation layer. In this way, the permeation layer continuously seeps lubricating oil when moving in the urethra, which is conducive to reducing the friction between the permeation layer and the inner wall of the urethra, so that the permeation layer slides smoothly in the urethra, and reduces damage to the urethra.

Description

Technical Field

[0001] The invention belongs to the technical field of urinary catheters and relates to a urinary catheter device used for nursing urinary patients. Background Art

[0002] Catheters are a commonly used medical device in the care of urinary patients. During the insertion or removal process, the catheter rubs against the urethra, which can easily cause damage to the urethra. In order to reduce the friction between the catheter and the urethra, lubricating oil should be avoided on the outside of the catheter. However, this operation is more troublesome.

[0003] The patent document with the publication number CN113679930B discloses an expansion self-lubricating urinary catheter, which includes an inner delivery tube, an air bag, an air inlet tube, etc. The front end of the urinary catheter is slowly inserted into the urethral opening, and the gas storage cavity is heated to expand the gas, so that the insulation layer expands outward, and the lubricating oil in the liquid storage cavity is squeezed out, and at the same time, the urethra is flexibly expanded outward to reduce the damage to the urethra. During use, the urinary catheter has shortcomings. When the insulation layer expands outward, the outer permeable layer that enters the urethra is squeezed by the inner wall of the urethra, making it easier for the lubricating oil to seep out through the outer permeable layer that has not entered the urethra. In this way, the part that enters the urethra first moves a longer distance in the urethra, but the lubricating oil that seeps out is less, which is easy to cause insufficient lubrication. The part that enters later seeps more lubricating oil, but the distance that needs to be moved in the urethra is smaller, which is easy to cause redundant waste.

[0004] In order to solve the above problems, the present invention proposes a urinary catheterization device for use in the care of urinary patients. Summary of the invention

[0005] In order to solve the problems existing in the background technology, the present invention proposes a urinary catheterization device used for the care of urinary patients.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: a urinary catheter device used for nursing urinary patients comprises a urinary catheter body, the front end of the urinary catheter body is arc-shaped and has a urination hole; a plurality of penetration mechanisms are sequentially arranged on the outer periphery of the urinary catheter body along the axial direction;

[0007] Each penetration mechanism includes a liquid storage cavity for storing lubricating oil, a penetration layer and a slip ring; the liquid storage cavity is arranged in the catheter body, and a piston ring is provided in the liquid storage cavity for sealing and sliding; the penetration layer is fixed on the outer circumference of the catheter body, and the penetration layer and the catheter body are surrounded to form an interlayer cavity, the interlayer cavity is communicated with the liquid storage cavity, and a plurality of penetration holes are provided on the penetration layer; the slip ring limit sliding sleeve is arranged on the outer circumference of the catheter body, and a linkage component is provided between the slip ring and the piston ring;

[0008] The front end of the catheter body is inserted into the urethra, and the catheter body is moved into the urethra. From the front end to the end, multiple permeable layers gradually enter the urethra in sequence, and the corresponding slip rings gradually abut against the urethral opening in sequence; when the slip ring abuts against the urethral opening, the slip ring slides toward the end of the catheter body, and under the action of the corresponding linkage assembly, the corresponding piston ring slides in the liquid storage cavity and pushes the lubricating oil into the interlayer cavity and seeps out through the corresponding permeable layer.

[0009] Furthermore, the linkage assembly includes a first gear, a rope and a transmission member; an installation groove is provided on the slip ring, and a rotating shaft is rotatably installed in the installation groove; the first gear is coaxially fixed on the rotating shaft; one end of the rope is fixedly connected to the piston ring, and the rope cooperates with the first gear; the transmission member is arranged between the catheter body and the rotating shaft; when the slip ring slides along the catheter body, under the action of the transmission member, the rotating shaft rotates, the first gear drives the rope to move, and the rope causes the piston ring to slide in the liquid storage chamber.

[0010] Furthermore, the transmission member includes a friction wheel, the outer diameter of the friction wheel is larger than the outer diameter of the first gear, and the friction wheel is coaxially fixed on the rotating shaft; the friction wheel is in friction contact with the catheter body, and when the slip ring slides along the catheter body, the friction wheel rotates.

[0011] Furthermore, a slide groove is provided on the catheter body, and the slip ring is connected to the slide groove in a limited sliding manner; the installation groove is communicated with the slide groove, a friction layer is fixed on the inner wall of the slide groove, and the friction wheel is in friction contact with the friction layer.

[0012] Furthermore, a first channel is provided in the catheter body, one end of which is connected to the outside through the end of the catheter body, and a second channel connected to the first channel is provided on the inner wall of one end of the liquid storage cavity near the front end of the catheter body.

[0013] Furthermore, a driving assembly for driving the catheter body to move forward is arranged in the catheter body; the driving assembly includes an end ball and a telescopic air tube; one end of the telescopic air tube is connected to a first air pump outside, and the other end of the telescopic air tube passes through the catheter body and extends to the front end of the catheter body and is sealed and connected to the end ball; the first air pump inflates the telescopic air tube, the telescopic air tube extends, and the end ball pushes the catheter body to move forward.

[0014] Furthermore, an air bag is arranged on the outer circumference of the front part of the catheter body, and the air bag is connected to a second air pump in the outside through a connecting tube.

[0015] Furthermore, a hand-grip portion is provided on the outer circumference of the front portion of the catheter body.

[0016] Furthermore, a clearance groove connected to the installation groove is provided on the inner circumference of the slip ring, and the clearance groove is adapted to the rope.

[0017] Compared with the prior art, the present invention has the following beneficial effects: as the catheter body moves into the urethra, multiple permeable layers gradually enter the urethra in sequence. When the permeable layer enters the urethra, the corresponding slip ring will abut against the urethral opening, and then as the catheter body moves forward, the slip ring moves toward the end of the catheter body, and the lubricating oil in the corresponding liquid storage cavity enters the interlayer cavity and seeps into the urethra through the permeable layer. In this way, the permeable layer continuously seeps lubricating oil when moving in the urethra, which is conducive to reducing the friction between the permeable layer and the inner wall of the urethra, so that the permeable layer slides smoothly in the urethra, reducing damage to the urethra. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the external structure of the urinary catheter body of the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure of the urinary catheter body of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the penetration mechanism in the present invention;

[0021] Figure 4 The present invention Figure 3 A magnified view of part A;

[0022] Figure 5 is a schematic structural diagram of the first channel in the present invention;

[0023] Figure 6 It is a structural schematic diagram of the second channel in the present invention.

[0024] In the figure: 1. Catheter body; 2. Urinating hole; 3. Air bag; 4. Hand-held part; 5. Liquid storage chamber; 6. Piston ring; 7. Permeable layer; 8. Interlayer chamber; 9. Connecting hole; 10. Slip ring; 11. Slide groove; 12. Friction wheel; 13. First gear; 14. Rope; 15. Give way groove; 16. First channel; 17. Second channel; 18. Telescopic air tube; 19. End ball. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figure 1-Figure 6As shown, the technical solution adopted by the present invention is as follows: a urinary catheter device used for nursing urinary patients comprises a urinary catheter body 1, the front end of the urinary catheter body 1 is arc-shaped and has a plurality of urination holes 2. When the front end of the urinary catheter body 1 passes through the urethra and extends into the bladder, urine in the bladder enters the urinary catheter body 1 through the urination holes 2 and is discharged.

[0027] A driving assembly for driving the catheter body 1 to move forward is arranged in the catheter body 1. The driving assembly includes an end ball 19 and a telescopic air tube 18. One end of the telescopic air tube 18 is connected to a first inflation pump in the outside world, and the other end of the telescopic air tube 18 passes through the catheter body 1 and extends to the front end of the catheter body 1 and is fixedly connected to the end ball 19. The end ball 19 seals the end of the telescopic air tube 18. The first inflation pump inflates the telescopic air tube 18, the telescopic air tube 18 extends, and the end ball 19 pushes the catheter body 1 to move forward.

[0028] An air bag 3 is arranged on the outer circumference of the front part of the catheter body 1, and the air bag 3 is connected to a second air pump outside through a connecting tube. When the catheter body 1 is inserted into the urethra, air is inflated into the air bag 3 to expand the air bag 3, thereby limiting the position of the catheter body 1.

[0029] A hand-grip portion 4 is provided on the outer circumference of the front portion of the catheter body 1. When in use, the front end of the catheter body 1 is inserted into the urethra by pinching the hand-grip portion 4.

[0030] A plurality of penetration mechanisms are sequentially arranged along the axial direction on the outer circumference of the catheter body 1. Each penetration mechanism includes a liquid storage chamber 5 for storing lubricating oil, a penetration layer 7 and a sliding ring 10. The liquid storage chamber 5 is provided in the catheter body 1, and a piston ring 6 is provided in the liquid storage chamber 5 for sealing and sliding. There are two penetration layers 7, and the two penetration layers 7 are symmetrically arranged about the axis of the catheter body 1. The penetration layer 7 is fixed on the catheter body 1, and the penetration layer 7 and the catheter body 1 are enclosed to form an interlayer cavity 8. Each interlayer cavity 8 is connected to the liquid storage chamber 5 through a connecting hole 9. The connecting hole 9 is located at one end of the liquid storage chamber 5 away from the front end of the catheter body 1. A plurality of penetration holes are provided on the penetration layer 7. Preferably, a penetration groove adapted to the penetration layer 7 is provided on the outer circumference of the catheter body 1, and an interlayer cavity 8 is enclosed between the penetration layer 7 and the penetration groove.

[0031] The slip ring 10 is limitedly slidably sleeved on the outer circumference of the catheter body 1. Specifically, two slide grooves 11 are axially provided on the outer circumference of the catheter body 1 away from the permeable layer 7, and the two slide grooves 11 are symmetrically arranged about the axis of the catheter body 1. Two protrusions are fixed on the inner circumference of the slip ring 10, and the two protrusions correspond to the two slide grooves 11 one by one, and each protrusion is slidably arranged in the corresponding slide groove 11.

[0032] Two linkage components are arranged between the piston ring 6 and the slip ring 10. The two linkage components are arranged symmetrically about the axis of the catheter body 1. The front end of the catheter body 1 is inserted into the urethra, and the catheter body 1 is moved into the urethra, and multiple slip rings 10 gradually abut against the urethral opening from the front end to the end. When the slip ring 10 abuts against the urethral opening, the slip ring 10 slides toward the end of the catheter body 1, and under the action of the corresponding linkage components, the piston ring 6 slides in the liquid storage cavity 5 and pushes the lubricating oil into the interlayer cavity 8 and seeps out through the corresponding permeable layer 7.

[0033] Each linkage assembly includes a first gear 13, a rope 14 and a transmission member.

[0034] The slip ring 10 is provided with two mounting grooves, which correspond to the two slide grooves 11 one by one, and each mounting groove is connected to the corresponding slide groove 11. A rotating shaft is rotatably installed in each mounting groove. The transmission member is arranged between the catheter body 1 and the corresponding rotating shaft. When the slip ring 10 slides along the catheter body 1, the rotating shaft rotates under the action of the transmission member. The transmission member includes a friction wheel 12, which is coaxially fixedly sleeved on the rotating shaft, and a friction layer is fixed on the inner wall of the slide groove 11. The friction wheel 12 is in friction contact with the friction layer in the corresponding slide groove 11. When the slip ring 10 slides along the catheter body 1, the friction wheel 12 rotates under the action of friction force. The transmission member can also be set as a second gear and a rack. The second gear is coaxially fixedly sleeved on the rotating shaft, the rack is fixed in the slide groove 11, and the second gear is meshed with the slide groove 11.

[0035] The first gear 13 is coaxially fixed on the rotating shaft, and the outer diameter of the first gear 13 is smaller than the outer diameter of the friction wheel 12. A rope hole is provided on the end wall of the liquid storage chamber 5 away from the front end of the catheter body 1. The rope hole extends into the slip ring 10 and communicates with the outside, and the rope hole is communicated with the end of the installation groove away from the front end of the catheter body 1. The rope hole is adapted to the rope 14. One end of the rope 14 is fixedly connected to the end of the piston ring 6 away from the front end of the catheter body 1, and the other end of the rope 14 passes through the rope hole and extends to the outside of the slip ring 10, and the first gear 13 conflicts with the rope 14.

[0036] The slip ring 10 is provided with a clearance groove 15 connected to the slide groove 11, and the clearance groove 15 is adapted to the rope 14. The distance between the first gear 13 and the slide groove 11 is greater than the outer diameter of the rope 14. In this way, when the rope 14 fits on the inner wall of the slide groove 11, the rope 14 will not hinder the movement of the first gear 13.

[0037] The slip ring 10 slides along the catheter body 1, the rotating shaft rotates, and the first gear 13 rotates. The first gear 13 drives the rope 14 to move, so that the rope 14 gradually moves to the side close to the catheter body 1. In this way, as the slip ring 10 slides, the rope 14 passes through the give way groove 15 and gradually fits on the inner wall of the slide groove 11. Since the outer diameter of the first gear 13 is smaller than the outer diameter of the friction wheel 12, the linear speed of the first gear 13 is smaller than the linear speed of the rope 14, that is, smaller than the speed at which the slip ring 10 slides along the catheter body 1. In this way, the rope 14 will pull the piston ring 6 to move closer to the end of the catheter body 1 during the gradual movement, so that the lubricating oil in the liquid storage chamber 5 enters the interlayer chamber 8 and seeps out through the permeable layer 7.

[0038] A first channel 16 is provided in the catheter body 1, one end of the first channel 16 is connected to the outside through the end of the catheter body 1, and a second channel 17 connected to the first channel 16 is provided on the inner wall of one end of the liquid storage cavity 5 near the front end of the catheter body 1. The second channel 17 can make the first channel 16 slide smoothly in the liquid storage cavity 5.

[0039] Working principle: Initially, the piston ring 6 is located at one end of the liquid storage chamber 5 close to the front end of the catheter body 1, and the liquid storage chamber 5 and the interlayer chamber 8 are filled with lubricating oil. Since the permeable holes on the permeable layer 7 are small, when the permeable layer 7 is not subjected to external force, the lubricating oil in the interlayer chamber 8 will not flow out through the permeable holes. The slip ring 10 is located at one end of the corresponding permeable layer 7 away from the front end of the catheter body 1.

[0040] When in use, the hand grip 4 is pinched by hand to extend the front end of the catheter body 1 into the urethra. Then the first air pump is started to inflate the telescopic air tube 18. The telescopic air tube 18 gradually extends, and the telescopic air tube 18 pushes the end ball 19 to move forward, and the end ball 19 pushes the catheter body 1 to move into the urethra. At the same time, the slip ring 10 moves toward the direction close to the urethral opening.

[0041] As the catheter body 1 moves into the urethra, the permeable layer 7 closest to the front end of the catheter body 1, i.e., the frontmost permeable layer 7, gradually enters the urethra, and when the frontmost slip ring 10 abuts against the urethral opening, the frontmost slip ring 10 cannot move into the urethra along with the catheter body 1. Afterwards, as the catheter body 1 moves forward, the frontmost slip ring 10 moves toward the end of the catheter body 1.

[0042] When the slip ring 10 moves toward the end of the catheter body 1, under the action of friction, the friction wheel 12 rotates, the first gear 13 rotates, and the first gear 13 drives the rope 14 to move, so that the rope 14 gradually moves toward the direction close to the catheter body 1. Since the outer diameter of the first gear 13 is smaller than the outer diameter of the friction wheel 12, the linear speed of the movement of the first gear 13 is smaller than the linear speed of the friction wheel 12, that is, smaller than the moving speed of the slip ring 10. In this way, the speed at which the rope 14 moves toward the direction close to the catheter body 1 is smaller than the moving speed of the slip ring 10, so that the rope 14 pulls the piston ring 6, so that the piston ring 6 gradually slides toward the other end of the liquid storage chamber 5, and the lubricating oil in the liquid storage chamber 5 enters the interlayer chamber 8, and the lubricating oil in the interlayer chamber 8 seeps out through the permeable layer 7.

[0043] After the frontmost slip ring 10 abuts against the urethral opening, the slip ring 10 slides along the catheter body 1 toward the end of the catheter body 1. Then, during the forward movement of the catheter body 1, the frontmost permeable layer 7 continuously leaks lubricating oil, thereby reducing the friction between the frontmost permeable layer 7 and the urethra.

[0044] As the catheter body 1 gradually enters the urethra, the slip ring 10 adjacent to the frontmost slip ring 10, i.e., the second slip ring 10, gradually approaches the urethral opening, and at the same time, the permeable layer 7 corresponding to the second slip ring 10, i.e., the second permeable layer 7, gradually enters the urethra. When the second slip ring 10 abuts against the frontmost slip ring 10, the second slip ring 10 moves toward the end of the catheter body 1, and the second permeable layer 7 gradually oozes lubricating oil. Afterwards, the second permeable layer 7 continuously oozes lubricating oil into the urethra during the process of continuously moving into the urethra, reducing the friction between the second permeable layer 7 and the urethra, so that the second permeable layer 7 moves smoothly in the urethra.

[0045] Similarly, as the catheter body 1 gradually enters the urethra, multiple slip rings 10 gradually abut against the urethral opening from the front end to the end of the catheter body 1. After the slip ring 10 abuts against the urethral opening, the slip ring 10 moves toward the end of the catheter body 1, and the corresponding permeable layer 7 continuously leaks lubricating oil, reducing the friction between the corresponding permeable layer 7 and the urethra.

[0046] When the airbag 3 enters the patient's bladder, the first inflation pump is stopped, the catheter body 1 stops moving forward, and the airbag 3 stays in the patient's bladder. When the catheter body 1 stops moving, the permeable layer 7 also stops leaking lubricating oil into the urethra.

[0047] Then the second air pump is started to inflate the airbag 3, so that the airbag 3 expands, and the front end of the catheter body 1 is located in the bladder and is not easy to fall out. The urine in the bladder will enter the catheter body 1 through the urination hole 2 and be discharged.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A urinary catheterization device used for nursing urinary patients, characterized in that: The invention comprises a urinary catheter body (1), the front end of which is in an arc shape and is provided with a urination hole (2); a plurality of penetration mechanisms are sequentially arranged along the axial direction on the outer circumference of the urinary catheter body (1); Each penetration mechanism comprises a liquid storage chamber (5) for storing lubricating oil, a penetration layer (7) and a slip ring (10); the liquid storage chamber (5) is provided in the catheter body (1), and a piston ring (6) is provided in the liquid storage chamber (5) in a sealing and sliding manner; the penetration layer (7) is fixedly provided on the outer circumference of the catheter body (1), and an interlayer chamber (8) is formed between the penetration layer (7) and the catheter body (1), and the interlayer chamber (8) is communicated with the liquid storage chamber (5), and a plurality of penetration holes are provided on the penetration layer (7); the slip ring (10) is provided on the outer circumference of the catheter body (1) in a limited sliding sleeve, and a linkage assembly is provided between the slip ring (10) and the piston ring (6); The front end of the catheter body (1) is inserted into the urethra, and the catheter body (1) is moved into the urethra, and the plurality of permeable layers (7) gradually enter the urethra from the front end to the end, and the corresponding slip rings (10) gradually abut against the urethral opening; when the slip ring (10) abuts against the urethral opening, the slip ring (10) slides toward the end of the catheter body (1), and under the action of the corresponding linkage assembly, the corresponding piston ring (6) slides in the liquid storage cavity (5) and pushes the lubricating oil into the interlayer cavity (8) and seeps out through the corresponding permeable layer (7); The linkage assembly comprises a first gear (13), a rope (14) and a transmission member; a mounting groove is provided on the slip ring (10), and a rotating shaft is rotatably mounted in the mounting groove; the first gear (13) is coaxially fixed on the rotating shaft; one end of the rope (14) is fixedly connected to the piston ring (6), and the rope (14) cooperates with the first gear (13); the transmission member is arranged between the catheter body (1) and the rotating shaft; when the slip ring (10) slides along the catheter body (1), the rotating shaft rotates under the action of the transmission member, the first gear (13) drives the rope (14) to move, and the rope (14) causes the piston ring (6) to slide in the liquid storage chamber (5); The transmission member comprises a friction wheel (12), the outer diameter of the friction wheel (12) is larger than the outer diameter of the first gear (13), and the friction wheel (12) is coaxially fixed on the rotating shaft; the friction wheel (12) is in frictional contact with the catheter body (1), and when the slip ring (10) slides along the catheter body (1), the friction wheel (12) rotates.

2. A urinary catheterization device for urinary patient care according to claim 1, characterized in that: A slide groove (11) is provided on the catheter body (1), and the slide ring (10) is connected to the slide groove (11) in a limited sliding manner; the installation groove is connected to the slide groove (11), a friction layer is fixed on the inner wall of the slide groove (11), and the friction wheel (12) is in friction contact with the friction layer.

3. A urinary catheterization device for urinary patient care according to claim 1, characterized in that: A first channel (16) is provided in the catheter body (1), one end of the first channel (16) is connected to the outside through the end of the catheter body (1), and a second channel (17) connected to the first channel (16) is provided on the inner wall of one end of the liquid storage cavity (5) close to the front end of the catheter body (1).

4. A urinary catheterization device for urinary patient care according to claim 1, characterized in that: A driving assembly for driving the catheter body (1) to move forward is arranged inside the catheter body (1); the driving assembly comprises an end ball (19) and a telescopic air tube (18); one end of the telescopic air tube (18) is connected to a first air pump in the outside, and the other end of the telescopic air tube (18) passes through the catheter body (1) and extends to the front end of the catheter body (1) and is sealedly connected to the end ball (19); the first air pump inflates air into the telescopic air tube (18), the telescopic air tube (18) extends, and the end ball (19) pushes the catheter body (1) to move forward.

5. A urinary catheterization device for urinary patient care according to claim 1, characterized in that: An air bag (3) is arranged on the outer circumference of the front part of the urinary catheter body (1), and the air bag (3) is connected to a second air pump in the outside through a connecting tube.

6. A urinary catheterization device for urinary patient care according to claim 1, characterized in that: A hand-grip portion (4) is provided on the outer circumference of the front portion of the catheter body (1).

7. A urinary catheterization device for urinary patient care according to claim 1, characterized in that: A clearance groove (15) communicating with the mounting groove is provided on the inner circumference of the slip ring (10), and the clearance groove (15) is adapted to the rope (14).

Images