Anti-retrograde indwelling catheter

Abstract

The utility model discloses an anti-retrograde indwelling catheter which comprises a catheter body, a first one-way membrane flap is installed on the upper side in the catheter body, and a second spray hole is formed in the position, located on the lower side of the first one-way membrane flap, in the catheter body. The urethra cleaning catheter has the advantages that when the urethra cleaning catheter is used for cleaning the urethra of a patient, the urethra of the patient is firstly opened under the action of the supporting bag sleeve, so that a gap for cleaning liquid medicine to pass through is reserved between the urethra of the patient and the catheter body, the cleaning liquid medicine can conveniently pass through, efficient cleaning of the urethra of the patient is achieved, and the urethra cleaning catheter is convenient to use. Meanwhile, the first one-way valve and the second one-way valve are arranged in the catheter body, and the cleaning inner cavity is reserved in the catheter body, so that when the anti-retrograde indwelling catheter is used, backflow of guided urine can be effectively avoided, and the urine can be effectively prevented from entering the body of a patient when the catheter body is cleaned; the cleaning efficiency of the interior of the ureter body is ensured.

Description

Technical Field

[0001] The utility model relates to the field of clinical medical instruments, in particular to an anti-retrograde indwelling urinary catheter. Background Art

[0002] A urinary catheter is usually a rubber tube that can be inserted into the bladder through the urethra to drain urine. However, in actual clinical practice, due to the need for long-term indwelling of urinary catheters for certain special diseases, retrograde urinary tract infections are common, which often aggravates the patient's condition and causes great pain to the patient. In addition, long-term indwelling of urinary catheters will also increase the patient's discomfort.

[0003] The Chinese patent with patent number CN201920704679.0 discloses an anti-retrograde infection indwelling urinary catheter, including a bladder area and a urethra area at the front end of the catheter, a urine drainage hole air bag is arranged in the bladder area, the upper and lower ends of the urethra area are closed, and a leakage hole is arranged on the surrounding tube wall of the urethra area; a urinary catheterization interface, an inflation interface and a drug administration interface are arranged at the tail of the urinary catheter, the urinary catheterization interface is connected with the urinary drainage hole through the urinary catheterization channel, the inflation interface is connected with the air bag through the inflation channel, and the drug administration interface is connected with the lower end of the urethra area through the drug administration channel.

[0004] Although the anti-retrograde infection indwelling catheter described in the above patent can be used to introduce cleaning liquid into the patient's urethra through the drug administration channel and the leakage hole to clean the patient's urethra and prevent urethral infection in the patient, on the one hand, since the catheter will fit tightly with the patient's urethra after being inserted into the patient's urethra, this will cause the cleaning liquid entering the patient's urethra to flow poorly, thereby making the cleaning efficiency of the patient's urethra relatively low. On the other hand, since the anti-retrograde infection indwelling catheter of the above structure is mainly a straight-through structure, it is not only impossible to avoid the backflow of urine at the urine outlet during use, but also impossible to avoid the cleaning liquid in the catheter from entering the patient's body during cleaning, which makes it inconvenient to clean the inside of the catheter. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an anti-retrograde indwelling catheter in response to the current status of the existing technology, which can not only realize the convenient outflow of cleaning liquid in the patient's urethra, but also realize the convenient cleaning of the inside of the catheter while the urine refluxes in the catheter body.

[0006] The utility model is achieved through the following technical scheme: the utility model proposes an anti-retrograde indwelling urinary catheter, including a urinary catheter body, a one-way membrane flap 1 is installed on the upper inner side of the urinary catheter body, a spray hole 2 is provided in the urinary catheter body at a lower side of the one-way membrane flap, a cleaning inner cavity is provided in the urinary catheter body at a position connected to the two spray holes, the cleaning inner cavity is connected to a cleaning connector 1 through a liquid inlet channel provided on the urinary catheter body, a cleaning outer cavity is provided in the urinary catheter body at a position connected to the one spray hole, a spray hole 1 is provided outside the urinary catheter body at a position directly facing the cleaning outer cavity, the cleaning outer cavity is connected to a cleaning connector 2 through a liquid inlet channel 2 on the urinary catheter body, a supporting bag sleeve is fixed outside the urinary catheter body at a lower side of the spray hole, the supporting bag sleeve is connected to an inflation connector 1 through an air tube 1 in the urinary catheter body, and a one-way membrane flap 2 is also fixed to the lower inner part of the urinary catheter body.

[0007] By adopting the above technical scheme, the patient's urethra can be expanded under the action of the support bag so that a gap for the cleaning solution to pass through is reserved between the patient's urethra and the catheter body, thereby facilitating the convenient passage of the cleaning solution and achieving efficient cleaning of the patient's urethra. At the same time, under the action of the one-way flap 1, the one-way flap 2 and the cleaning inner cavity of the catheter body, the anti-retrograde indwelling catheter can not only effectively avoid the backflow of the discharged urine when in use, but also effectively prevent the urine from entering the patient's body when cleaning the catheter body, thereby ensuring the cleaning efficiency of the inside of the catheter body.

[0008] Furthermore, the one-way membrane flap 1 and the one-way membrane flap 2 both have six flaps, and the one-way membrane flap 1 and the one-way membrane flap 2 are both made of elastic medical film.

[0009] By adopting the above technical solution, the one-way membrane flap 1 and the one-way membrane flap 2 can effectively prevent the backflow of urine in the catheter body.

[0010] Furthermore, the cleaning connector 1 and the cleaning connector 2 are both provided with valves.

[0011] By adopting the above technical solution, the cleaning connector 1 can control the medicinal liquid introduced into the cleaning outer cavity, and the cleaning connector 2 can control the medicinal liquid introduced into the cleaning inner cavity.

[0012] Furthermore, the support bag sleeve is plugged into the catheter body, and the support bag sleeve has a spherical protrusion extending outward.

[0013] By adopting the above technical solution, the spherical protrusion on the outside of the support bag sleeve will be propped up after being inflated to open the patient's urethra, thereby ensuring that a gap is reserved between the patient's urethra and the catheter body during cleaning.

[0014] Furthermore, the inner cleaning cavity and the outer cleaning cavity are both formed on the urinary catheter body, and the inner cleaning cavity and the outer cleaning cavity are both annular structures.

[0015] By adopting the above technical solution, the outer cleaning cavity is mainly used to realize convenient storage of the patient's urethra cleaning fluid during cleaning, and the inner cleaning cavity is mainly used to realize convenient storage of the cleaning fluid during cleaning of the urinary catheter body.

[0016] Furthermore, a urinary guide hole is provided at the top of the urinary catheter body, a positioning bag sleeve is installed outside the urinary catheter body at the urinary guide hole, and an air inlet of the positioning bag sleeve is connected to the second inflation joint through the second trachea.

[0017] By adopting the above technical solution, the positioning bag sleeve can realize the reliable positioning of the catheter body in the patient's body.

[0018] Furthermore, the second trachea is embedded in the ureter body and the outside of the supporting bag sleeve.

[0019] By adopting the above technical solution, the trachea 2 can be reliably fixed on the outside of the ureter body.

[0020] Furthermore, the first inflation connector and the second inflation connector are both provided with valves.

[0021] By adopting the above technical solution, the inflation connector 1 can conveniently control the air intake of the support bag sleeve.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] When the utility model is used to clean the patient's urethra, the patient's urethra is firstly expanded under the action of the supporting bag so that a gap for the passage of cleaning liquid is reserved between the patient's urethra and the catheter body, thereby facilitating the convenient passage of the cleaning liquid and realizing efficient cleaning of the patient's urethra. At the same time, one-way flap 1 and one-way flap 2 are arranged in the catheter body, and a cleaning inner cavity is reserved in the catheter body, so that the anti-retrograde indwelling catheter can not only effectively avoid the backflow of the discharged urine when in use, but also effectively prevent the urine from entering the patient's body when cleaning the catheter body, thereby ensuring the cleaning efficiency of the inside of the catheter body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a main cross-sectional view of an anti-retrograde indwelling urinary catheter described in the utility model;

[0025] Figure 2 It is a structural schematic diagram of an anti-retrograde indwelling urinary catheter described in the utility model;

[0026] Figure 3The utility model is an anti-retrograde indwelling urinary catheter Figure 1 The enlarged view of point A in the middle;

[0027] Figure 4 It is a top sectional view of a urinary catheter body in an anti-retrograde indwelling urinary catheter described in the utility model;

[0028] Figure 5 The utility model is a schematic diagram of the structure of a one-way membrane flap in an anti-retrograde indwelling urinary catheter.

[0029] The following are the descriptions of the reference numerals:

[0030] 1. Catheter hole; 2. Spray hole 1; 3. Support bag sleeve; 4. Catheter body; 5. Inflation joint 1; 6. Cleaning joint 1; 7. Inflation joint 2; 8. Cleaning joint 2; 9. Trachea 2; 10. Positioning bag sleeve; 11. Liquid inlet channel 1; 12. Trachea 1; 13. One-way membrane flap 2; 14. Liquid inlet channel 2; 15. One-way membrane flap 1; 16. Cleaning outer cavity; 17. Spray hole 2; 18. Cleaning inner cavity. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0032] like Figure 1-Figure 3As shown, an anti-retrograde indwelling urinary catheter in this embodiment includes a urinary catheter body 4, a one-way flap 15 is installed on the upper side of the urinary catheter body 4, a spray hole 2 17 is opened in the urinary catheter body 4 at the lower side of the one-way flap 15, a cleaning inner cavity 18 is opened in the urinary catheter body 4 at the position connected with the spray hole 2 17, and the cleaning inner cavity 18 is connected with the cleaning joint 16 through a liquid inlet channel 11 opened on the urinary catheter body 4, a spray hole 2 is opened outside the urinary catheter body 4 at the position directly opposite to the cleaning outer cavity 16, a cleaning outer cavity 16 is opened in the urinary catheter body 4 at the position connected with the spray hole 2, and the cleaning outer cavity 16 is connected with the cleaning joint 28 through a liquid inlet channel 2 14 on the urinary catheter body 4, the cleaning outer cavity 16 is mainly used to realize the convenient storage of the patient's urethra cleaning liquid during cleaning, and the cleaning inner cavity 18 is mainly used to realize the convenient storage of the cleaning liquid during cleaning of the urinary catheter body 4, and a support bag sleeve 3 is fixed on the outside of the urinary catheter body 4 at the lower side of the spray hole 2, and the support bag sleeve 3 is connected through the inner portion of the urinary catheter body 4. The trachea 12 is connected to the inflation joint 15, and a one-way flap 2 13 is fixed to the lower part of the catheter body 4. The one-way flap 15 and the one-way flap 2 13 can effectively prevent the backflow of urine in the catheter body 4. Under the action of the support bag 3, the patient's urethra can be slightly stretched after the catheter body 4 is inserted, so that a gap for the passage of cleaning liquid is reserved between the patient's urethra and the catheter body 4, and the gap is microporous and is opened only when the cleaning liquid continuously flows out of the catheter body 4, thereby facilitating the convenient passage of the cleaning liquid and not increasing the patient's pain too much, so as to achieve efficient cleaning of the patient's urethra. At the same time, under the action of the one-way flap 15, the one-way flap 2 13 and the cleaning inner cavity 18 of the catheter body 4, the anti-retrograde indwelling catheter can not only effectively avoid the backflow of the derived urine when in use, but also effectively prevent the urine from entering the patient's body when cleaning the catheter body 4, thereby ensuring the cleaning efficiency inside the catheter body 4.

[0033] like Figure 2-Figure 4 As shown, in the present embodiment, the one-way membrane flap 1 15 and the one-way membrane flap 2 13 both have six flaps, and the one-way membrane flap 1 15 and the one-way membrane flap 2 13 are both made of elastic medical film, and the cleaning connector 1 6 and the cleaning connector 2 8 are both equipped with valves, and the cleaning connector 1 6 can control the medicine introduced into the cleaning outer cavity 16, and the cleaning connector 2 8 can control the medicine introduced into the cleaning inner cavity 18, and the support bag 3 is plugged into the catheter body 4, and the support bag 3 has a spherical protrusion that props up outward. After the support bag 3 is inflated, the outer spherical protrusion will prop up so as to open the patient's urethra, thereby ensuring that a gap is reserved between the patient's urethra and the catheter body 4 during cleaning, and the cleaning inner cavity 18 and the cleaning outer cavity 16 are both formed on the catheter body 4, and the cleaning inner cavity 18 and the cleaning outer cavity 16 are both annular structures.

[0034] like Figure 1-Figure 5As shown, in this embodiment, a catheter hole 1 is opened at the top of the catheter body 4, and a positioning bag sleeve 10 is installed outside the catheter body 4 at the catheter hole 1. The air inlet of the positioning bag sleeve 10 is connected to the inflation connector 27 through the trachea 29. The positioning bag sleeve 10 can realize the reliable positioning of the catheter body 4 in the patient's body. The trachea 29 is embedded in the catheter body 4 and the outside of the supporting bag sleeve 3, so that the trachea 29 can be reliably fixed on the outside of the catheter body 4. The inflation connector 15 and the inflation connector 27 are both equipped with valves. The inflation connector 15 can conveniently control the air intake of the supporting bag sleeve 3.

[0035] The specific implementation process of this embodiment is as follows: when in use, first insert the side of the positioning bag sleeve 10 on the catheter body 4 into the patient's bladder, and prop up the positioning bag sleeve 10, and then the catheter body 4 can be used to achieve catheterization of the patient. When the patient's urethra is cleaned during the overall use of the indwelling catheter, the patient's urethra is first propped open under the action of the supporting bag sleeve 3, so that a gap for the cleaning solution to pass through is reserved between the patient's urethra and the catheter body, thereby facilitating the convenient passage of the cleaning solution and achieving efficient cleaning of the patient's urethra. At the same time, a one-way flap 15 and a one-way flap 2 13 are arranged in the catheter body 4, and a cleaning lumen 18 is reserved in the catheter body 4, so that the anti-retrograde indwelling catheter can not only effectively avoid the backflow of the discharged urine when in use, but also effectively prevent the urine from entering the patient's body when cleaning the catheter body 4, thereby ensuring the cleaning efficiency inside the catheter body 4.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-retrograde indwelling urinary catheter, characterized in that: The invention comprises a urinary catheter body (4), wherein a one-way membrane flap (15) is installed on the upper inner side of the urinary catheter body (4), a second spray hole (17) is provided in the urinary catheter body (4) at the lower side of the one-way membrane flap (15), a cleaning inner cavity (18) is provided in the urinary catheter body (4) at a position connected to the second spray hole (17), the cleaning inner cavity (18) is connected to a cleaning joint (6) via a liquid inlet channel (11) provided on the urinary catheter body (4), and a spray hole (18) is provided on the outer side of the urinary catheter body (4) directly opposite to the cleaning outer cavity (16). 2), a cleaning outer cavity (16) is provided in the urinary catheter body (4) at a position connected to the spray hole 1 (2), the cleaning outer cavity (16) is connected to the cleaning joint 2 (8) through the liquid inlet channel 2 (14) on the urinary catheter body (4), a support bag sleeve (3) is fixed to the outside of the urinary catheter body (4) at the lower side of the spray hole 1 (2), the support bag sleeve (3) is connected to the inflation joint 1 (5) through the air tube 1 (12) in the urinary catheter body (4), and a one-way membrane flap 2 (13) is also fixed to the lower part of the urinary catheter body (4).

2. The anti-retrograde indwelling urinary catheter according to claim 1, characterized in that: The one-way membrane flap 1 (15) and the one-way membrane flap 2 (13) both have six flaps, and the one-way membrane flap 1 (15) and the one-way membrane flap 2 (13) are both made of elastic medical film.

3. The anti-retrograde indwelling urinary catheter according to claim 1, characterized in that: The cleaning connector 1 (6) and the cleaning connector 2 (8) are both provided with valves.

4. The anti-retrograde indwelling urinary catheter according to claim 1, characterized in that: The support bag sleeve (3) is plugged into the urinary catheter body (4), and the support bag sleeve (3) is provided with a spherical protrusion extending outward.

5. The anti-retrograde indwelling urinary catheter according to claim 1, characterized in that: The cleaning inner cavity (18) and the cleaning outer cavity (16) are both formed on the urinary catheter body (4), and the cleaning inner cavity (18) and the cleaning outer cavity (16) are both annular structures.

6. The anti-retrograde indwelling urinary catheter according to claim 1, characterized in that: The top of the urinary catheter body (4) is provided with a urinary guide hole (1), and a positioning bag sleeve (10) is installed outside the urinary catheter body (4) at the urinary guide hole (1), and the air inlet of the positioning bag sleeve (10) is connected to the second inflation joint (7) through the second air pipe (9).

7. The anti-retrograde indwelling urinary catheter according to claim 6, characterized in that: The second trachea (9) is embedded in the ureter body (4) and the outside of the supporting bag sleeve (3).

8. The anti-retrograde indwelling urinary catheter according to claim 6, characterized in that: The first inflation connector (5) and the second inflation connector (7) are both provided with valves.

Images