CN111282136A - Nephrology department catheter system - Google Patents
Nephrology department catheter system Download PDFInfo
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- CN111282136A CN111282136A CN202010125347.4A CN202010125347A CN111282136A CN 111282136 A CN111282136 A CN 111282136A CN 202010125347 A CN202010125347 A CN 202010125347A CN 111282136 A CN111282136 A CN 111282136A
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- container
- flushing
- tube
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
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- A61M1/0023—
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- A61M1/0058—
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
Abstract
The invention relates to a nephrology department catheter system, comprising: the catheter comprises a catheter body, a flushing and sucking pipe and a flexible flushing and sucking container; the catheter body comprises an insertion section, an external section and a urination section, the insertion section is connected with the urination section through the external section, the external section is communicated with the first end of the suction pipe, the second end of the suction pipe is detachably connected with the flexible suction container, and the flexible suction container is communicated with the second end of the suction pipe. Through an infusion pipe of external section intercommunication at the catheter body for flexible infusion container can carry out taking out of urine to external section, makes flexible infusion container more be close to the insertion section, makes to solidify and can be broken up at the extravasated blood piece of insertion section, makes the mediation effect to the catheter body better, and efficiency is higher, and because flexible infusion container is close to the insertion section, can adopt less draft to reduce patient's uncomfortable and feel.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a urinary catheter system for nephrology department.
Background
A catheter is a tube made of natural rubber, silicon rubber or polyvinyl chloride and is used for being inserted into a bladder through the urethra of a human body, so that urine in the bladder can be drained out through the catheter, and the catheter is generally used in nephrology departments, particularly nephrology departments. Is suitable for patients who are inconvenient to get out of bed after operation. The method of use is to insert a catheter into the bladder via the urethra of the patient in order to drain urine. However, for patients with urinary system operation, after the kidney, bladder or urethra of the patient is operated, blood stasis is easy to exist on the patient, the blood stasis is easy to deposit and solidify into blood stasis, and the blood stasis is blocked in the catheter, so that the catheter is blocked by the blood stasis. In order to dredge the blocked catheter and solve the blockage caused by the blood stasis block, the conventional blood stasis block treatment method comprises the steps of flushing physiological saline from a flushing channel of the catheter through an injection tube, pumping out urine, the physiological saline together with the blood stasis block, and repeatedly flushing and pumping out the urine, the physiological saline and the blood stasis block so as to conduct the catheter. However, such an approach is inefficient and prone to discomfort in the patient's urinary system due to the large force of impulse and withdrawal of the syringe.
Disclosure of Invention
On the basis, it is necessary to have the mediation inefficiency of blood stasis piece jam to traditional catheter, and cause the uncomfortable problem of patient easily, provides a mediation efficiently and effectively reduces the nephrology department catheter system that patient uncomfortable feels at mediation in-process.
A nephrology catheter system, comprising: the catheter comprises a catheter body, a flushing and sucking pipe and a flexible flushing and sucking container;
the catheter body comprises an insertion section, an external section and a urination section, the insertion section is connected with the urination section through the external section, the external section is communicated with the first end of the suction pipe, the second end of the suction pipe is detachably connected with the flexible suction container, and the flexible suction container is communicated with the second end of the suction pipe.
In one embodiment, the flexible flushing and sucking container is made of rubber.
In one embodiment, the flexible flushing and sucking container is made of transparent rubber.
In one embodiment, the catheter further comprises an irrigation tube, wherein the irrigation tube is communicated with the external section of the catheter body.
In one embodiment, the urine collector further comprises a three-way pipe, the three-way pipe is provided with a first communication end, a second communication end and a third communication end, a communication port is formed in the position, close to the urination section, of the external section, the communication port is communicated with the first communication end of the three-way pipe, the second communication end of the three-way pipe is communicated with the first end of the flushing pipe, and the third communication end is communicated with the flushing pipe.
In one embodiment, the second communication port is provided with a first valve and the third communication port is provided with a second valve.
In one embodiment, the urine collector further comprises a four-way pipe, the four-way pipe is provided with an inlet end, a first outlet end, a second outlet end and a third outlet end, the central axis of the first outlet end coincides with the central axis of the inlet end, the second outlet end and the third outlet end are respectively arranged on two sides of the first outlet end, one end, away from the insertion section, of the external section is communicated with the inlet end, the urination section is communicated with the first outlet end, the second outlet end is communicated with the first end of the irrigation pipe, and the third outlet end is communicated with the irrigation pipe.
In one embodiment, the second outlet port is provided with a third valve and the third outlet port is provided with a fourth valve.
In one embodiment, the catheter further comprises an inflation tube, an inflation air bag is arranged outside the insertion section of the catheter body, and the inflation tube is communicated with the inflation air bag.
In one embodiment, the device further comprises a flushing pipe plug which is detachably arranged at the second end of the flushing pipe and closes the second end of the flushing pipe.
The invention has the beneficial effects that: through an infusion pipe of external section intercommunication at the catheter body for flexible infusion container can carry out taking out of urine to external section, makes flexible infusion container more be close to the insertion section, makes to solidify and can be broken up at the extravasated blood piece of insertion section, makes the mediation effect to the catheter body better, and efficiency is higher, and because flexible infusion container is close to the insertion section, can adopt less draft to reduce patient's uncomfortable and feel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of one orientation of an example of a nephrology catheter system;
FIG. 2 is a schematic view of an alternative embodiment of an orientation of a nephrology catheter system;
FIG. 3 is a schematic view of an orientation of a nephrology catheter system according to yet another embodiment;
FIG. 4 is a schematic view of an orientation of a nephrology catheter system according to yet another embodiment;
FIG. 5 is a schematic structural view of one orientation of a fifth embodiment of a nephrology catheter system;
FIG. 6 is a schematic view of an embodiment of an impact pin in one direction;
FIG. 7 is a schematic view of a sixth embodiment of a catheter body having a partial and crushed ring connection;
FIG. 8 is a schematic view of a seventh embodiment of an orientation configuration of a nephrology catheter system.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a nephrology catheter system 10 according to an embodiment of the present invention includes: a catheter body 100, a flushing and sucking pipe 210 and a flexible flushing and sucking container 220; the urinary catheter body 100 comprises an insertion section 110, an external section 120 and a urination section 130, wherein the insertion section 110 is connected with the urination section 130 through the external section 120, the external section 120 is communicated with a first end of the suction tube 210, a second end of the suction tube 210 is detachably connected with the flexible suction container 220, and the flexible suction container 220 is communicated with a second end of the suction tube 210.
Specifically, the catheter body 100 is made of soft rubber or plastic, and can be bent and deformed. The insertion section 110 of the catheter body 100 is used for being inserted into the urethra of a patient, and the external section 120 is located outside the urethra, in this embodiment, the insertion section 110 and the external section 120 of the catheter body 100 are integrally connected, and the urination section 130 and the external section 120 are connected, which may be directly connected or indirectly connected, for example, the external section 120 and the urination section 130 are integrally connected, and for example, the external section 120 and the urination section 130 are connected through a three-way pipe 300 or a four-way pipe 400. Urine in the bladder enters the catheter body 100 from the insertion section 110, is conveyed to the urination section 130 through the insertion section 110, and is discharged into the urinal from the tail end of the urination section 130.
In this embodiment, the external section 120 is communicated with the flushing and sucking tube 210, so that the external section 120, the flushing and sucking tube 210 and the urination section 130 are connected in a Y shape. The flexible flushing and sucking container 220 can also be called as a flushing and sucking device, the flexible flushing and sucking container 220 is made of rubber, namely the flexible flushing and sucking container 220 is transparent, so that the flexible flushing and sucking container 220 has flexibility and toughness and elasticity, when the flexible flushing and sucking container 220 is compressed by pressure, liquid in the flexible flushing and sucking container 220 is sprayed outwards, when the flexible flushing and sucking container 220 is reset and expanded under the elasticity of the flexible flushing and sucking container 220, the flexible flushing and sucking container 220 sucks the liquid from the outside, the flexible flushing and sucking container 220 can be repeatedly pressed to enable the flexible flushing and sucking container 220 to repeatedly suck and spray the liquid, so that the liquid in the external section 120 and the insertion section 110 of the catheter body 100 can be pumped and sprayed in through the flushing and sucking pipe 210, the external section 120 and the insertion section 110 of the catheter body 100 can be repeatedly pumped and sprayed in through the flexible flushing and sucking container 220, and silt blocks solidified in the insertion section 110 can be dispersed, thereby ensuring that the catheter body 100 is unobstructed and convenient for urination.
In addition, the flexible flush container 220 can be detached from the second end of the flush tube 210 and can be installed on the second end of the flush tube 210, thereby enabling replacement of the flexible flush container 220. In one embodiment, as shown in fig. 1, the flexible flushing and sucking container 220 comprises a container mouth 221 and a container body 222 which are connected, a container cavity is arranged in the container body 222, a sealing ring 223 is arranged on the container mouth 221, the inner side of the sealing ring 223 is communicated with the container cavity through the container mouth 221, and the flushing and sucking pipe 210 is inserted in the sealing ring 223, so that the communication between the flushing and sucking pipe 210 and the flexible flushing and sucking container 220 can be realized by inserting the flushing and sucking pipe 210 into the sealing ring 223.
In order to improve the sealing effect between the flushing pipe 210 and the flexible flushing and sucking container 220, in an embodiment, referring to fig. 1 again, the inner side surface of the sealing ring 223 is provided with an internal thread, the second end of the flushing and sucking pipe 210 is provided with a tightening ring 211, the outer side surface of the tightening ring 211 is provided with an external thread, the sealing ring 223 is sleeved on the outer side of the tightening ring 211, and the tightening ring 211 is in threaded connection with the sealing ring 223, the inner diameter of the sealing ring 223 gradually decreases from one end far away from the container body 222 to one end near the container body 222, in this embodiment, when the tightening ring 211 is screwed on the sealing ring 223, as the inner diameter of the sealing ring 223 gradually decreases, the gap between the sealing ring 223 and the tightening ring 211 gradually decreases, so that the pressure between the tightening ring 211 and the sealing ring 223 gradually increases, and the second end of the flushing and sucking pipe 210 is tightly fixed on the container mouth 221, and provides a better seal between the flush tube 210 and the flexible flush container 220.
In one embodiment, the sealing ring 223 is made of a hard plastic and the tightening ring 211 is made of a hard plastic, so that the two can be tightly abutted and can bear the increased pressure between the two.
In one embodiment, referring to fig. 2, catheter body 100 further comprises a flush tube plug 215, wherein flush tube plug 215 is detachably disposed at the second end of flush tube 210 and closes the second end of flush tube 210. In this embodiment, the flush tube plug 215 is used to close the second end of the flush tube 210. when the flexible flush container 220 is detached from the flush tube 210, the flush tube plug 215 can be inserted into the second end of the flush tube 210 to close the flush tube 210. In this embodiment, the flush tube plug 215 is inserted into the tightening ring 211 to close the second end of the flush tube 210.
It is worth mentioning that, in the conventional catheter body 100, a syringe is connected to the end of the catheter body 100, and the liquid is sucked out by a large suction force, which may cause discomfort to the patient. And in this application, through communicating a suction pipe 210 at external section 120 of catheter body 100, make flexible suction container 220 can carry out taking out of urine to external section 120, make flexible suction container 220 more be close to insert section 110, make the blood stasis piece that solidifies at insert section 110 can be broken up, make the mediation effect to catheter body 100 better, efficiency is higher, and because flexible suction container 220 is close to insert section 110, can adopt less suction to reduce patient's uncomfortable sense.
In order to clearly view the liquid inside the flexible flushing container 220, in one embodiment, the flexible flushing container 220 is made of transparent rubber. The flexible flushing and sucking container 220 made of transparent rubber is beneficial for operators to watch the inside of the flexible flushing and sucking container 220, so that the flowing condition of liquid in the flexible flushing and sucking container 220 can be known, and blood clots can be observed.
In order to further disperse blood clots in the insertion section 110 and the external section 120, particularly, to disperse blood clots of the insertion section 110 which are not visible, and to dredge the catheter body 100, in one embodiment, as shown in fig. 3, an impact thimble 230 is movably disposed in the suction tube 210, a width of the impact thimble 230 is smaller than an inner diameter of the suction tube 210, the impact thimble 230 is connected to an inner surface of the suction tube 210 or the flexible suction container 220 through a pull wire 240, a sum of lengths of the impact thimble 230 and the pull wire 240 is smaller than a sum of lengths of the insertion section 110 and the external section 120, and a sum of lengths of the impact thimble 230 and the pull wire 240 is larger than a sum of lengths of the suction tube 210 and the external section 120. In this embodiment, the impact thimble 230 is cylindrical, and the impact thimble 230 is further movably disposed in the insertion section 110 and the outer section 120. Specifically, when the liquid is flushed into the external section 120 and the insertion section 110 under the pressure of the flexible flushing container 220, the impact thimble 230 has a higher hardness than the liquid, so that the blood stasis inside the insertion section 110 can be impacted, and then the blood stasis can be dispersed, thereby dredging the insertion section 110. Because the sum of the lengths of the impact thimble 230 and the pulling wire 240 is less than the sum of the lengths of the insertion section 110 and the external section 120, when the impact thimble 230 slides to a position close to the tail end of the insertion section 110, the pulling wire 240 is straightened, the impact thimble 230 is prevented from rushing out to the tail end of the insertion section 110 under the limitation of the pulling wire 240, and the impact thimble 230 is prevented from damaging the bladder wall or the urethra of the human body. It should be appreciated that, since the catheter body 100 is made of smooth rubber, the impact spike 230 can slide smoothly from the impact tube 210 to the insertion section 110 under the impact of hydraulic pressure, and the impact spike 230 can be prevented from sliding out of the end of the insertion section 110 under the restriction of the pulling wire 240. In addition, the flexible flushing and sucking container 220 made of transparent rubber enables an operator to clearly see the impact thimble in the flexible flushing and sucking container 220, so as to operate. Compare in the mode of the injection liquid of traditional injection cylinder and take out liquid, break away the extravasated blood piece through strikeing thimble 230, its efficiency is higher, and the effect is more showing, can effectively dredge because the jam that the extravasated blood piece leads to.
In one embodiment, the impact pin 230 is made of plastic. The plastic has a low density so that the impact spike 230 has a low weight and can slide under the impact of liquid such as urine, and when the impact spike 230 slides into the insertion section 110, the stagnant blood mass in the insertion section 110 is dispersed. In order to achieve the pulling of the impact pin 230 and have a low density, in one embodiment, the material of the pulling wire 240 is plastic, in one embodiment, the material of the pulling wire 240 is fiber, in one embodiment, the material of the pulling wire 240 is nylon, and the plastic or the fiber or the nylon has a low density and a high strength, so as to pull the impact pin 230 well and prevent the impact pin 230 from slipping out of the insertion section 110. In one embodiment, the pulling wire 240 is made of carbon plastic, which has high strength and low density, and can effectively prevent the impact thimble 230 from slipping out to the outside of the end of the insertion section 110 due to the breaking of the pulling wire 240.
It should be understood that the width of the pulling wire 240 is smaller than that of the impact pin 230, that is, the pulling wire 240 is thinner and the impact pin 230 is thicker, so that the pulling wire 240 can receive less resistance and avoid affecting the sliding of the impact pin 230. In one embodiment, the pulling wire 240 is a polybutylene synthetic thread, in one embodiment, the pulling wire 240 is a collagen suture thread, and in this embodiment, the pulling wire 240 is made of a surgical suture thread, so that the pulling wire 240 has high elasticity and toughness to better pull the impact spike 230.
In one embodiment, referring to fig. 3, one end of the pulling wire is connected to the impacting thimble 230, and the other end of the pulling wire is fixedly connected to the inner side surface of the flexible suction receptacle 220, and it should be noted that, after the insertion section 110 of the catheter body 100 is dredged, in order to pull out the impacting thimble 230, the flexible suction receptacle 220 can be detached and taken out, and the flexible suction receptacle 220 pulls out the impacting thimble 230 through the pulling wire 240, so as to realize the pulling out of the impacting thimble 230, and realize the replacement of the impacting thimble 230. It should be understood that after the flexible flushing and sucking container 220 is mounted at the second end of the flushing and sucking pipe 210, the impact spike 230 is at least partially accommodated in the flexible flushing and sucking container 220 and at least partially located in the flushing and sucking pipe 210, and since the flexible flushing and sucking container 220 is in an idle state at this time, the impact spike 230 does not enter the outer section 120 of the catheter body 100, and therefore, the urination of the catheter body 100 is not affected.
In order to avoid affecting the urination of the catheter body 100, in one embodiment, as shown in fig. 3, the first end of the suction tube 210 is provided with a suction valve 216, so that the suction valve 216 is closed without dredging the insertion section 110, on one hand, urine is prevented from being discharged into the suction tube 210 and the flexible suction container 220, and on the other hand, the impact thimble 230 and the pulling wire 240 can be blocked from entering the insertion section 110 through the outer section 120 of the catheter body 100, so as to avoid affecting the normal urination. When the catheter body 100 is blocked, the suction valve 216 is opened, so that the impact thimble 230 can enter the insertion section 110 through the external section 120 of the catheter body 100 under the pressure of the flexible flushing container 220 to dredge the catheter body 100. To enable the flexible flush receptacle 220 to have an initial pressure without requiring urine to enter the flexible flush receptacle 220 to provide pressure, in one embodiment, the flush tube 210 and the flexible flush receptacle 220 are filled with saline such that when the suction valve 216 is opened, the flexible flush receptacle 220 is squeezed such that the pressure of the saline acts on the impact spike 230 to force the impact spike 230 into the insertion section 110.
To perform irrigation of catheter body 100, in one embodiment, as shown in fig. 4 and 5, catheter body 100 further comprises an irrigation tube 510, wherein irrigation tube 510 is in communication with outer section 120 of catheter body 100. In this embodiment, one end of the flushing tube 510, which is far away from the external section 120, is used for connecting a syringe, so that an operator can inject physiological saline into the catheter body 100 by inserting the injection end of the syringe into the end of the flushing tube 510, and flush the insertion section 110 and the external section 120 of the catheter body 100, and in addition, the syringe can be used for pumping out the liquid in the insertion section 110 and the external section 120, so as to clean the insertion section 110 and the external section 120. In addition, the injection of the liquid in the injection cylinder can provide enough hydraulic pressure in the catheter body 100, and further provide enough pressure for the flexible flushing and sucking container 220, so that the impact thimble 230 can slide to the insertion section 110 under the pressure of the flexible flushing and sucking container 220 to dredge the insertion section 110.
In order to realize the connection between the catheter body 100 and the flushing and sucking pipe 210 and the flushing pipe 510, in one embodiment, as shown in fig. 4, the catheter body 100 further comprises a three-way pipe 300, the three-way pipe 300 has a first communicating end 310, a second communicating end 320 and a third communicating end 330, a communicating port is opened at a position of the external section 120 close to the urination section 130, the communicating port is communicated with the first communicating end 310 of the three-way pipe 300, the second communicating end 320 of the three-way pipe 300 is communicated with the first end of the flushing and sucking pipe 210, and the third communicating end 330 is communicated with the flushing pipe 510.
In this embodiment, the external section 120 and the urination section 130 are integrally connected, a communication port is formed in a side wall of the external section 120, and the communication port is connected with the flushing and sucking pipe 210 and the flushing pipe 510 by using a three-way pipe 300, so that the external section 120 can be respectively communicated with the flushing and sucking pipe 210 and the flushing pipe 510. When the valves on the suction tube 210 and the flush tube 510 are closed, urine in the outer section 120 can be discharged through the urination section 130, and when the valves on the suction tube 210 or the flush tube 510 are opened, the outer section 120 and the insertion section 110 can be unclogged.
In one embodiment, referring to fig. 4, the second communication port 320 is provided with a first valve 321, and the third communication port 330 is provided with a second valve 331. In this embodiment, the first valve 321 is a pumping valve in the above embodiments. Thus, by providing the first valve 321 and the second valve 331, the first valve 321 and the second valve 331 can be closed to prevent urine from being discharged to the flushing tube 210 and the flushing tube 510 under the condition of normal catheterization when the catheter body 100 is unobstructed, and when the catheter body 100 is blocked, the first valve 321 or the second valve 331 can be selectively opened, and according to the blocking condition, the catheter body 100 can be dredged by using an injection tube or dredged by using the pressure-fit impact thimble 230 of the flexible flushing and sucking container 220, the injection tube can be accessed, and meanwhile, the first valve 321 or the second valve 331 is opened, and the saline is injected through the injection tube, so that the flexible flushing and sucking container 220 has enough pressure to flush the impact thimble 230 into the insertion section 110 for dredging.
In order to better connect the irrigation tube 210 and the irrigation tube 510, in one embodiment, as shown in fig. 5, the catheter body 100 further comprises a cross-tube 400, the cross-tube 400 has an inlet end 450, a first outlet end 410, a second outlet end 420 and a third outlet end 430, the central axis of the first outlet end 410 coincides with the central axis of the inlet end 450, the second outlet end 420 and the third outlet end 430 are respectively disposed at two sides of the first outlet end 410, one end of the external section 120 away from the insertion section 110 communicates with the inlet end 450, the urination section 130 communicates with the first outlet end 410, the second outlet end 420 communicates with the first end of the irrigation tube 210, and the third outlet end 430 communicates with the irrigation tube 510.
In this embodiment, the external section 120 is connected to the urination section 130 through the four-way pipe 400, since the first outlet port 410 is aligned with the inlet port 450, the urine in the external section 120 is easily discharged to the urination section 130, and the second outlet port 420 and the third outlet port 430 are respectively connected to the suction pipe 210 and the flushing pipe 510, so that the external section 120 can be respectively communicated with the suction pipe 210 and the flushing pipe 510.
In order to control the communication between the flush tube 210 and the flush tube 510 with the outer section 120 to avoid affecting normal urination, in one embodiment, as shown in fig. 5, the second outlet end 420 is provided with a third valve 421, and the third outlet end 430 is provided with a fourth valve 431. In this embodiment, the third valve 421 is a suction valve in the above embodiments. Thus, by providing the third valve 421 and the fourth valve 431, the third valve 421 and the fourth valve 431 can be closed under the condition that the catheter body 100 is unobstructed and normal catheterization is performed, so as to prevent urine from being discharged to the flushing tube 210 and the flushing tube 510, when the catheter body 100 is blocked, the third valve 421 or the fourth valve 431 can be selectively opened, according to the blocking condition, an injection tube is selected to be used for dredging the catheter body 100 or the pressure-fit impact thimble 230 of the flexible flushing and sucking container 220 is used for dredging, the injection tube can also be accessed, meanwhile, the third valve 421 or the fourth valve 431 is opened, and the physiological saline is injected through the injection tube, so that the flexible flushing and sucking container 220 has enough pressure to flush the impact thimble 230 into the insertion section 110 for dredging. In addition, in one embodiment, the first outlet end 410 is provided with a fifth valve (not shown), and the fifth valve is used for closing or opening the first outlet end 410, specifically, when the external section and the insertion section of the catheter body 100 are dredged, the first outlet end 410 is closed, so that the liquid impacted by the urination section is prevented from being discharged, and the dredging effect is better.
In order to make the impact thimble 230 receive a smaller resistance when sliding along the external section 120 and the insertion section 110, in an embodiment, as shown in fig. 6, the end of the impact thimble 230 is configured as an arc surface, in this embodiment, the end surface of the impact thimble 230 facing to one end of the insertion section 110 is an arc surface, so that the resistance of the liquid to the impact thimble 230 can be reduced, and the impact thimble 230 can slide more smoothly, and the impact thimble 230 can smoothly disperse the extravasated blood blocks, which is beneficial to dredging the catheter body 100.
In order to make the effect of scattering and disturbing the blood stasis better, in an embodiment, please refer to fig. 6, a burr structure is provided on the surface of the impact thimble 230, in this embodiment, a plurality of burrs 231 are convexly provided on the surface of the impact thimble 230, and the width of the burrs 231 is smaller than the diameter of the impact thimble 230, so that the burrs 231 will receive a smaller resistance when moving in the liquid, when the impact thimble 230 moves to the blood stasis, the burrs 231 will be inserted into the blood stasis to be scattered, on one hand, the connection of the blood stasis can be broken, so that the blood stasis can be scattered, on the other hand, the blood stasis can be adhered to the impact thimble 230, and the impact thimble 230 slides out to the suction tube 210, thereby realizing the dredging of the catheter body 100.
In order to enable the impact spike 230 to slide in the catheter body 100, in one embodiment, the sum of the length of the two times burr 231 and the diameter of the impact spike 230 is smaller than the inner diameter of the catheter body 100, so that the sum of the widths of the impact spike 230 and burrs 231 on both sides is smaller than the inner diameter of the outer section 120 and the insertion section 110, the probability of the burr 231 on the impact spike 230 contacting the inner side surface of the catheter body 100 is reduced, and the impact spike 230 can slide in the catheter body 100.
In order for burr 231 to experience less resistance and have greater stiffness to break up clots, in one embodiment, the ratio of the width of burr 231 to the diameter of impact spike 230 is 1: (40-80), in one embodiment, the ratio of the width of burr 231 to the diameter of impact pin 230 is 1: 60. it should be understood that a burr 231 having an excessively large width will experience a greater resistance to movement of the impact spike 230, while a burr 231 having an excessively small width will result in a burr 231 having a lower hardness to disrupt the structure of the clot, so that in this embodiment, the ratio of the width of the burr 231 to the diameter of the impact spike 230 is 1: 60, on the one hand, can make burr 231 receive the liquid resistance that reduces, avoid causing the influence to the impulsive force that strikes thimble 230, on the other hand, can make burr 231 have sufficient intensity and destroy the structure of blood clot.
In order to enable the impact thimble 230 to enter the insertion section 110 along the external section 120, in an embodiment, as shown in fig. 7, the catheter system for nephrology department further includes a squeezing ring 710, an opening 701 is formed on one side of the squeezing ring 710, the squeezing ring 710 is movably sleeved on the outer side of the catheter body 100, and an inner diameter of the squeezing ring 710 is smaller than an outer diameter of the catheter body 100 and larger than an inner diameter of the catheter body 100, in this embodiment, the squeezing ring 710 is configured to be sleeved on the catheter body 100 to press the catheter body 100 to contract the catheter body 100, and squeeze the impact thimble, so that the impact thimble can slide in the catheter body 100. Specifically, the squeezing ring 710 is made of an elastic material, for example, the squeezing ring 710 is made of an elastic plastic, and since one side of the squeezing ring 710 is provided with the opening 701, the squeezing ring 710 can be opened and further sleeved outside the catheter body 100, when the amount of liquid in the catheter body 100 is small or the plugging of the insertion section is severe, the flexible impact container 220 cannot provide enough power to the impact thimble to enable the impact thimble to slide to the insertion section, the squeezing ring 710 can be sleeved outside the catheter body 100, and the squeezing ring 710 is located at one end of the impact thimble close to the flexible impact container 220, so that the squeezing ring 710 can abut against the rear end of the impact thimble through the side wall of the catheter body 100, and then the squeezing ring 710 is pressed to push the squeezing ring 710 to move toward the insertion section, the squeezing ring 710 will act on the impact thimble to enable the impact thimble to slide toward the direction of the insertion section, when the thrust of the extrusion ring 710 is larger or the speed is faster, the impact thimble can have larger impact force, and the impact thimble slides to the insertion section under the inertia effect to dredge the insertion section. It should be understood that, in the normal catheterization process, in order to avoid the urinary catheter body 100 from being obstructed in catheterization due to the squeezing ring 710, the squeezing ring 710 may be detached from the urinary catheter body 100 in the normal catheterization process, and the squeezing ring 710 is sleeved on the flushing pipe, in this embodiment, the squeezing ring 710 is movably sleeved on the flushing pipe, and since the flushing pipe is not communicated with the urinary catheter body 100 in the normal catheterization process, the squeezing ring 710 is sleeved on the flushing pipe, which can effectively avoid the urinary catheter body 100 from being squeezed to cause obstructed in catheterization.
In order to facilitate the flexible sliding of the squeezing ring 710 along the catheter body 100, in an embodiment, please refer to fig. 7 again, the inner side surface of the squeezing ring 710 is provided with a circular arc surface, in this embodiment, the cross section of the inner side surface of the squeezing ring 710 is semi-circular, which is beneficial to reduce the contact area between the squeezing ring 710 and the catheter body 100 and reduce the resistance force when sliding along the surface of the catheter body 100, so that the squeezing ring 710 can slide along the catheter body 100 flexibly.
In one embodiment, the flexible flushing and sucking container 220 includes a container body, a container mouth, a container head and a container cover, one end of the container body is integrally connected with the container mouth, the other end of the container body is integrally connected with the container head, the container head is provided with an outlet, the outer side surface of the container head is provided with an external thread, the container cover is provided with an internal thread, the container head is in threaded connection with the container cover, one end of the pulling wire 240 far away from the impact thimble 230 is connected with the inner side surface of the container cover, so that the impact thimble 230 and the pulling wire 240 are easily detached and replaced by providing a detachable container cover.
In order to fix the insertion section 110 of the catheter body 100 in the bladder and prevent the insertion section 110 from slipping out along the urethra, in one embodiment, as shown in fig. 8, the catheter body 100 further comprises an inflation tube 620, an inflation balloon 610 is arranged on the outer side of the insertion section 110 of the catheter body 100, and the inflation tube 620 is communicated with the inflation balloon 610. In this embodiment, one end of the inflation tube 620 is connected to the inflation balloon 610, and the other end extends to the outside of the external section 120, so that the inflation balloon 610 is inflated through the inflation tube 620, and the inflation balloon 610 is expanded, and because the expanded width of the inflation balloon 610 is greater than the width of the urethra, the inflation balloon 610 is effectively prevented from slipping out of the urethra, and then the insertion section 110 connected to the inflation balloon 610 is prevented from slipping out, so that the insertion section 110 of the catheter body 100 is fixed in the bladder. In one embodiment, the end of the inflation tube 620 distal from the inflatable bladder 610 is removably inserted with an inflation plug that closes the end of the inflation tube distal from the inflatable bladder 610, thereby sealing the inflatable bladder 610 from deflation after inflation.
In order to collect urine discharged from the catheter body 100, in one embodiment, the end of the urination section 130 of the catheter body 100 is connected with a urine bag, and the bottom of the urine bag is provided with a urine outlet which is provided with a urine outlet valve. The structure of the urine bag and the connection structure with the urination section 130 of the catheter body 100 are common urethral catheterization structures, which can be realized by adopting the prior art, and in the embodiment, the description is not redundant.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A nephrology catheter system, comprising: the catheter comprises a catheter body, a flushing and sucking pipe and a flexible flushing and sucking container;
the catheter body comprises an insertion section, an external section and a urination section, the insertion section is connected with the urination section through the external section, the external section is communicated with the first end of the suction pipe, the second end of the suction pipe is detachably connected with the flexible suction container, and the flexible suction container is communicated with the second end of the suction pipe.
2. The nephrology catheter system of claim 1, wherein the flexible flushing and aspirating container is made of rubber.
3. The nephrology catheter system of claim 1, wherein the flexible flushing and aspirating container is made of transparent rubber.
4. The nephrology catheter system of claim 1, further comprising an irrigation tube in communication with the external section of the catheter body.
5. The nephrology catheter system of claim 4, further comprising a three-way tube having a first communicating end, a second communicating end and a third communicating end, wherein the external section is provided with a communicating port near the urination section, the communicating port is communicated with the first communicating end of the three-way tube, the second communicating end of the three-way tube is communicated with the first end of the flushing tube, and the third communicating end is communicated with the flushing tube.
6. The nephrology catheter system of claim 5, wherein the second communication end is provided with a first valve and the third communication end is provided with a second valve.
7. The nephrology department catheter system according to claim 4, further comprising a four-way tube having an inlet end, a first outlet end, a second outlet end and a third outlet end, wherein the central axis of the first outlet end coincides with the central axis of the inlet end, the second outlet end and the third outlet end are respectively disposed at two sides of the first outlet end, one end of the external section away from the insertion section is communicated with the inlet end, the urination section is communicated with the first outlet end, the second outlet end is communicated with the first end of the irrigation tube, and the third outlet end is communicated with the irrigation tube.
8. The nephrology catheter system of claim 1, wherein the second outlet end is provided with a third valve, the third outlet end being provided with a fourth valve.
9. The nephrology catheter system of any one of claims 1-8, further comprising an inflation tube, wherein an inflation balloon is disposed outside the insertion section of the catheter body, and the inflation tube is in communication with the inflation balloon.
10. The nephrology catheter system of any of claims 1-8, further comprising a flush tube plug removably disposed at and closing the second end of the flush tube.
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| CN202010125347.4A CN111282136B (en) | 2020-02-27 | 2020-02-27 | Nephrology department catheter system |
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| CN202010125347.4A CN111282136B (en) | 2020-02-27 | 2020-02-27 | Nephrology department catheter system |
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