Urethral catheterization instrument with split feeding and heating functions

Abstract

The invention relates to a urinary catheterization instrument with split feeding and heating functions, and belongs to the technical field of medical instruments. The urethral catheterization instrument with the split feeding and heating functions comprises a three-cavity urethral catheter and an air bag. The air bag is fixed to the outer wall, close to the closed end, of the three-cavity catheter and used for positioning and fixing the three-cavity catheter during expansion. One end of the bladder floating instrument is clamped in the groove, the balloon expands and extrudes the bladder floating instrument out, the bladder floating instrument is separated from the groove of the three-cavity catheter, enters the bladder and floats in bladder liquid, and the bladder floating instrument receives alternating magnetic field heating to achieve bladder liquid heating. When the three-cavity catheter is pulled out, the bladder floating instrument can be taken out through the soft wire, compared with an existing mode, the bladder floating instrument does not need to be taken out through a tool independently, damage to the bladder urethra caused by multiple times of operation is avoided, safety is improved, and operation is convenient. The technical problem that a heating mode of an existing device is prone to causing damage to the bladder and the urethra is solved.

Description

Technical Field

[0001] The invention relates to the field of medical appliances, in particular to a catheterization instrument with split delivery and heating functions. Background Art

[0002] Tumor hyperthermia generally refers to a type of method that uses heating to treat tumors. It is a new and effective means of treating tumors and is known as "green tumor therapy." Bladder tumors provide an anatomical basis for the implementation of tumor hyperthermia because they have heated cavities. There are currently two ways to perform hyperthermia for bladder tumors: 1. Connect the bladder in the body through a three-lumen catheter and heat it with hot saline outside the body in a circulation cycle; 2. Insert a metal heating guide wire into the bladder, connect the wire through the urethra, and heat the metal heating guide wire. At the same time as tumor thermal treatment, it is often necessary to use a catheter to perform bladder irrigation chemotherapy.

[0003] However, the existing devices have the following problems when in use: whether it is through saline circulation or heating by metal heating wires, both require repeated invasive urethral operations during regular bladder tumor thermal therapy, that is, the catheter and the metal heating wire must be repeatedly inserted and removed from the urethra, and there are risks of inaccurate heat control and leakage, which can easily cause damage to the bladder and urethra; and during bladder irrigation chemotherapy, the above-mentioned device needs to be taken out and inserted into the irrigation tube again to flush the bladder, which can easily cause secondary damage to the bladder and urethra. Summary of the invention

[0004] Based on this, it is necessary to provide a catheterization instrument with split delivery and heating functions to address the technical problem that the heating and chemotherapy flushing methods of existing devices easily cause bladder and urethra damage.

[0005] The present invention provides a catheterization instrument with split delivery and heating functions, which includes a three-lumen urinary catheter, an airbag, a bladder floatation device and an expansion component. The airbag is fixed on the outer wall of the three-lumen urinary catheter near the closed end, and is used to position and fix the three-lumen urinary catheter during expansion. The closed end of the three-lumen urinary catheter is provided with a groove that is concave from the outside to the inside. The bladder floatation device is stuck in the groove and is used to receive an alternating magnetic field to achieve repeated heating. The expansion component includes a balloon and a trachea, the balloon is fixed in the groove and is located between the bladder floatation device and the bottom wall of the groove, and the two ends of the trachea are respectively connected to the balloon and the airbag, and the trachea is driven to expand the balloon by delivering gas to the airbag, so that the bladder floatation device is squeezed out of the groove and separated from the three-lumen urinary catheter.

[0006] In one embodiment, a soft thread is fixedly connected between the outer wall of the bladder floatation device and the inner wall of the groove.

[0007] In one embodiment, the bladder floatation device includes a shell and a heating component disposed inside. The heating component is installed inside the shell to receive an external magnetic field force and generate heat.

[0008] In one embodiment, the balloon can be spherical or ellipsoidal in shape.

[0009] In one of the embodiments, a flushing channel is provided on the three-lumen urinary catheter, and a sealing component is provided inside the flushing channel for closing the opening of the flushing channel when the infusion is completed or when the channel is idle.

[0010] In one embodiment, the sealing assembly includes an orifice plate, a torsion spring rod, and a baffle;

[0011] The orifice plate is sealed and fixed to the inner wall of the flushing pipe, and a through hole is provided at the center of the orifice plate;

[0012] The torsion spring rod is composed of a torsion spring and a round rod. The torsion spring is sleeved on the outer wall of the round rod. One end of the torsion spring is fixed to the outer wall of the orifice plate. The round rod is rotatably connected to the outer wall of the orifice plate. The other end of the torsion spring is fixed to the outer wall of the round rod. One side of the annular surface of the baffle is fixed to the outer wall of the round rod. The torsion spring rod is used to control the reset of the baffle, and the baffle is used to open and close the through hole of the orifice plate.

[0013] In one embodiment, a multifunctional connector is provided at the opening of the open end of the flushing pipeline for connecting the open end of the flushing pipeline with an infusion set or a syringe.

[0014] In one embodiment, the multifunctional connector includes a housing, an infusion set head, and a syringe head;

[0015] The housing is formed of a disc and a pipe, the pipe is in communication with the open end opening of the flushing pipe, and the disc is in communication with the pipe and through the pipe is in communication with the flushing pipe;

[0016] An infusion set head and a syringe head are fixed on the disc. The infusion set head is used for connecting the infusion set with the shell, and the syringe head is used for connecting the syringe with the shell.

[0017] In one of the embodiments, the infusion head includes a polygonal groove and a check valve pipeline, the polygonal groove is provided on the shell, and two ends of the check valve pipeline are respectively connected to the polygonal groove and the pipeline of the shell.

[0018] In one embodiment, the syringe head includes a cylindrical groove and a syringe hole. The cylindrical groove is opened on the outer shell. The syringe hole is opened in the cylindrical groove for docking with the syringe outlet. The syringe hole is connected to the pipeline of the outer shell. A friction ring is set on the inner wall annular surface of the cylindrical groove for friction limiting the syringe shell.

[0019] The present invention provides a urinary catheter with split placement and heating functions, which has the following beneficial effects:

[0020] 1. The bladder floatation device can generate heat, and one end is stuck in the groove. When the bladder needs to be heated, the airbag is controlled to ventilate and expand, and the trachea is used to supply air to the balloon, so that the balloon expands and squeezes out the bladder floatation device, allowing the bladder floatation device to separate from the groove of the three-lumen catheter and enter the bladder, thereby achieving heating inside the bladder, and there will be no problems of leakage and repeated insertion of the catheter, which improves safety and solves the technical problem that the heating method of the existing device easily causes bladder and urethra damage.

[0021] 2. The present invention separates the bladder floatation device from the groove of the three-lumen urinary catheter and inserts it into the bladder, thereby achieving heating inside the bladder. Subsequently, there is no need to take out the three-lumen urinary catheter, but a flushing pipe is directly set at the open end to use drugs to flush the bladder. In this way, the heating and flushing of the bladder can be performed at the same time. The operation is simple and has few steps. While reducing the labor intensity of medical staff, it avoids the situation of repeated insertion of catheters and metal wires. It has an outstanding effect in protecting the patient's bladder and urethra, and solves the technical problem that the chemotherapy flushing method of the existing device is prone to cause bladder and urethra damage.

[0022] 3. The device has an automatic sealing effect when idle, which can avoid urinary tract infection caused by contamination of the flushing pipe and has good safety.

[0023] 4. Subsequent operations can be carried out directly by simply inserting the external syringe. It is simple and quick to use. The infusion set and the syringe can also be inserted at the same time to achieve simultaneous transportation of two drugs, and even mix them through the flow of water during transportation, so that the device has multiple usage methods and can significantly improve work efficiency.

[0024] 5. When the three-lumen urinary catheter is pulled out, the bladder floatation device can be taken out together with the soft wire. Compared with the existing method, there is no need to use a separate tool to take out the bladder floatation device, which is conducive to reducing the operation steps and avoiding damage to the bladder and urethra caused by multiple operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention;

[0026] Figure 2 for Figure 1 A magnified cross-sectional view of the area at center A;

[0027] Figure 3 for Figure 1 Schematic diagram of the structure of the middle urinary catheter after adding a sealing component;

[0028] Figure 4 It is a schematic diagram of the internal structure of the sealing component;

[0029] Figure 5 for Figure 3A schematic diagram of the structure of a central urinary catheter with a multifunctional connector added;

[0030] Figure 6 for Figure 5 Schematic diagram of the structure of the multifunctional connector. DETAILED DESCRIPTION

[0031] 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.

[0032] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0034] Embodiment 1

[0035] See also Figure 1 and Figure 2 This embodiment introduces a urinary catheterization instrument with split delivery and heating functions, which includes a three-lumen urinary catheter 1, an air bag 12, a bladder floatation device 2 and an expansion component 3. A flushing pipeline 10 is arranged on the three-lumen urinary catheter 1.

[0036] In the above embodiment, Figure 1The orientation shown is a front view. The three-chamber urinary catheter 1 is a three-chamber urinary catheter in the prior art. The left end of the three-chamber urinary catheter is closed, and reflux side holes are provided on both sides of the outer wall near the left end. The reflux side holes are used to reflux the liquid in the bladder cavity. Three pipes are arranged on the right side of the three-chamber urinary catheter, and the three pipes are respectively a discharge pipe, an inflation pipe and an irrigation pipe. The liquid in the bladder cavity flows back to the discharge pipe and is discharged through the discharge pipe. An opening is provided on the upper outer wall near the left end of the three-chamber urinary catheter, and the opening is connected to the irrigation pipe through a pipe, so that a cyclic operation of injection from the irrigation pipe and outflow from the reflux pipe can be realized. By injecting the medicine into the irrigation pipe, the drug irrigation of the bladder can also be realized. The airbag 12 is a structure that the existing three-chamber urinary catheter already has, and the airbag 12 can be expanded by ventilating the inflation pipe.

[0037] See also Figure 2 The airbag 12 can be fixed on the outer wall of the three-lumen urinary catheter 1 near the closed end, and is used to position and fix the three-lumen urinary catheter 1 when it is expanded. The closed end of the three-lumen urinary catheter 1 is provided with a groove 11 which is concave from the outside to the inside.

[0038] The bladder floatation device 2 comprises a sealed housing and a heating component disposed inside the housing, wherein the heating component is installed inside the housing to receive an external magnetic field force and generate heat;

[0039] The bladder floatation device 2 floats on urine or liquid in the bladder after entering the bladder, and conducts heat to the liquid by receiving heat generated by the alternating magnetic field, thereby achieving a heating effect inside the bladder.

[0040] The heating component includes a metal coil, a temperature sensor, a wireless transmission module and a power module. The sealed housing is made of non-metallic material. The metal coil is arranged in the housing. The metal coil is used to sense the alternating magnetic field outside the human body and generate heat to perform thermal therapy on the tumor. The temperature sensor is arranged in the housing. The temperature sensor is used to detect the temperature in the housing and generate a corresponding temperature signal. The wireless transmission module is arranged in the housing. The wireless transmission module is used to send the temperature signal wirelessly to the outside. And the power module is arranged in the housing. The power module is used to power the temperature sensor and the wireless transmission module.

[0041] The expansion assembly 3 includes a balloon 31 and a trachea 32. The balloon 31 can be fixed in the groove 11 and is located between the bladder floatation device 2 and the bottom wall of the groove 11. The two ends of the trachea 32 are respectively connected to the balloon 31 and the airbag 12. By delivering gas to the airbag 12, the trachea 32 is driven to expand the balloon 31, and the bladder floatation device 2 is squeezed out of the groove 11 and separated from the three-lumen urinary catheter 1.

[0042] When the airbag 12 is inflated, the gas in the airbag 12 enters the balloon 31 through the trachea 32, causing the balloon 31 to swell. Then, the balloon 31 squeezes the bladder floatation device 2 out of the groove 11 to the outside to implement the delivery operation.

[0043] The key point of the above embodiment is that the three-lumen urinary catheter 1 is integrated with the bladder floatation instrument 2, so that the function of heating the bladder floatation instrument 2 in the bladder and the functions of urinary drainage and drug flushing of the three-lumen urinary catheter 1 are integrated together: first, the three-lumen urinary catheter 1 is placed in the human bladder, and then when the airbag 12 is inflated, the gas in the airbag 12 will enter the balloon 31 through the trachea 32, and the balloon 31 will squeeze the bladder floatation instrument 2 out of the groove 11 to the inside of the bladder, and the bladder floatation instrument 2 will be heated by the external alternating magnetic field. At the same time, drugs can be added to the flushing tube to flush the bladder, and in the entire heating and flushing operation process, only the insertion operation of the three-lumen urinary catheter 1 is performed, avoiding the need to take out the above device during the process of bladder flushing chemotherapy and put it into the flushing tube again for bladder flushing, which is easy to cause secondary damage to the bladder and urethra, thereby improving the safety of the operation.

[0044] In some embodiments, a soft thread may be fixedly connected between the outer wall of the bladder floatation device 2 and the inner wall of the groove 11, and the soft thread has a certain toughness and will not break easily.

[0045] The soft wire connects the bladder floatation device 2 and the groove 11, so that the two can remain connected when they are separated (the bladder floatation device 2 floats), and the bladder floatation device 2 can be taken out together with the three-lumen urinary catheter 1 through the soft wire when it is pulled out. Compared with the existing method, there is no need to use a separate tool to take out the bladder floatation device 2, which is beneficial to reducing the operation steps and avoiding damage to the bladder and urethra caused by multiple operations.

[0046] The balloon 31 may be spherical or ellipsoidal.

[0047] The spherical or ellipsoidal shape can make the balloon 31 squeeze out the bladder floatation device 2 when inflated, and the spherical or ellipsoidal shape changes evenly and is not easy to get stuck.

[0048] Embodiment 2

[0049] See also Figure 3 The difference between this embodiment and the first embodiment is that a sealing component 4 is provided inside the flushing pipe 10 for closing the opening of the flushing pipe 10 when the infusion is completed or when the flushing pipe 10 is idle.

[0050] Combination Figure 4The sealing assembly 4 includes an orifice plate 41, a torsion spring rod 42 and a baffle 43. The orifice plate 41 is sealed and fixed to the inner wall of the flushing pipe 10, and a through hole is provided at the center of the orifice plate 41. The torsion spring rod 42 is composed of a torsion spring and a round rod. The torsion spring is sleeved on the outer wall of the round rod. The round rod is rotatably connected to the outer wall of the orifice plate 41. One end of the torsion spring is fixed to the outer wall of the orifice plate 41, and the other end of the torsion spring is fixed to the outer wall of the round rod. One side of the annular surface of the baffle 43 is fixed to the outer wall of the round rod. The torsion spring rod 42 is used to control the reset of the baffle 43, and the baffle 43 is used to open and close the through hole of the orifice plate 41.

[0051] In the natural state, the baffle 43 is in close contact with the orifice plate 41. When water flows into the flushing pipe 10, the water pressure impacts the baffle 43, causing the round rod to rotate and drive the baffle 43 to open, thereby allowing the flushing pipe 10 to flow. When the water flow stops, due to the recovery of the torsion spring, the torsion spring drives the round rod to reset, and the baffle 43 automatically closes, thereby achieving the effect of automatically closing the device when idle. Urinary tract infection caused by contamination of the flushing pipe 10 can be avoided, and it has good safety.

[0052] Embodiment 3

[0053] See also Figure 5 The difference between this embodiment and the first embodiment is that a multifunctional connector 5 can be provided at the opening of the opening end of the flushing pipe 10 to allow the opening of the opening end of the flushing pipe 10 to be connected to a transfusion device or a syringe.

[0054] Combination Figure 6 The multifunctional connector 5 may include a housing 51, an infusion head 52 and a syringe head 53. The housing 51 is composed of a disc and a pipe, the pipe is connected to the open end of the flushing pipe 10, and the disc is connected to the pipe and is connected to the flushing pipe 10 through the pipe. The infusion head 52 and the syringe head 53 are fixed on the disc, the infusion head 52 is used to connect the infusion device with the housing 51, and the syringe head 53 is used to connect the syringe with the housing 51.

[0055] An internal pipe is arranged inside the disc of the outer shell 51 to connect the infusion head 52 and the syringe head 53 with the flushing pipe 10 , so that the infusion head 52 and the syringe head 53 are both connected with the flushing pipe 10 .

[0056] The infusion head 52 includes a polygonal groove and a check valve pipeline. The polygonal groove is provided on the housing 51 . Two ends of the check valve pipeline are respectively connected to the polygonal groove and the pipeline of the housing 51 .

[0057] The syringe head 53 includes a cylindrical groove and a syringe hole. The cylindrical groove is opened on the shell 51. The syringe hole is opened in the cylindrical groove for docking with the syringe outlet. The syringe hole is connected to the pipeline of the shell 51. A friction ring is set on the inner wall annular surface of the cylindrical groove for friction limiting the syringe shell.

[0058] The polygonal groove can be docked with the external infusion device output port, and then the liquid inside the infusion device enters the built-in pipeline inside the shell 51 disc through the check valve pipeline and finally enters the flushing pipeline 10. After the infusion device is unplugged, the check valve is reset to seal the infusion device head 52. The external syringe is first inserted into the cylindrical groove, the syringe mouth is aligned with the syringe hole and inserted, and then the tail end of the syringe is pushed to achieve liquid delivery. The key point is that the friction ring is set on the inner wall ring surface of the cylindrical groove, which will produce friction limit with the outer wall of the external syringe when the external syringe is first inserted into the cylindrical groove, so that the movement of the external syringe is restricted, thereby achieving a similar buckle effect. Only the external syringe needs to be inserted to directly perform subsequent operations, which is simple and quick to use. In addition, the infusion device and the syringe can be inserted at the same time, and the two drugs can be transported at the same time, and even mixed by water flow during transportation, so that the device has multiple usage methods, which can significantly improve work efficiency. The existing device requires one tube to connect the infusion device or syringe separately, and the operation efficiency is low.

[0059] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A catheterization instrument with separate delivery and heating functions, comprising: Triple lumen urinary catheter (1); An air bag (12) is fixed to the outer wall of the three-lumen urinary catheter (1) near the closed end and is used to position and fix the three-lumen urinary catheter (1) when it is expanded; The invention is characterized in that the closed end of the three-lumen urinary catheter (1) is provided with a groove (11) which is sunken from the outside to the inside; The catheterization instrument also includes: A bladder floatation device (2) is stuck in the groove (11) and is used to receive an alternating magnetic field to achieve repeated heating; The expansion assembly (3) comprises a balloon (31) and a trachea (32). The balloon (31) is fixed in the groove (11) and is located between the bladder floatation device (2) and the bottom wall of the groove (11). The two ends of the trachea (32) are respectively connected to the balloon (31) and the airbag (12). By delivering gas to the airbag (12), the trachea (32) is driven to expand the balloon (31), so that the bladder floatation device (2) is squeezed out of the groove (11) and separated from the three-lumen urinary catheter (1).

2. The catheterization instrument with separate delivery and heating functions according to claim 1, characterized in that: A soft thread is fixedly connected between the outer wall of the bladder floatation instrument (2) and the inner wall of the groove (11).

3. The catheterization instrument with separate delivery and heating functions according to claim 1, characterized in that: The bladder floating device (2) comprises a shell and a heating component arranged inside, wherein the heating component is installed inside the shell and is used to receive an alternating magnetic field and generate heat.

4. The catheterization instrument with separate delivery and heating functions according to claim 1, characterized in that: The balloon (31) may be spherical or ellipsoidal.

5. The catheterization instrument with separate delivery and heating functions according to claim 1, characterized in that: A flushing pipe (10) is provided on the three-lumen urinary catheter (1), and a sealing component (4) is provided inside the flushing pipe (10) for sealing the opening of the flushing pipe (10) when the infusion is completed or when the pipe is idle.

6. The catheterization instrument with separate delivery and heating functions according to claim 5, characterized in that: The sealing assembly (4) comprises an orifice plate (41), a torsion spring rod (42) and a baffle (43); The orifice plate (41) is sealed and fixed to the inner wall of the flushing pipe (10), and a through hole is provided at the center of the orifice plate (41); The torsion spring rod (42) is composed of a torsion spring and a round rod. The torsion spring is sleeved on the outer wall of the round rod. The round rod is rotatably connected to the outer wall of the orifice plate (41). One end of the torsion spring is fixed to the outer wall of the orifice plate (41), and the other end of the torsion spring is fixed to the outer wall of the round rod. One side of the annular surface of the baffle (43) is fixed to the outer wall of the round rod. The torsion spring rod (42) is used to control the reset of the baffle (43), and the baffle (43) is used to open and close the through hole of the orifice plate (41).

7. The catheterization instrument with separate delivery and heating functions according to claim 5, characterized in that: A multifunctional connector (5) is provided at the opening of the open end of the flushing pipeline (10) for connecting the open end of the flushing pipeline (10) to a transfusion device or a syringe.

8. The catheterization instrument with separate delivery and heating functions according to claim 7, characterized in that: The multifunctional connector (5) comprises a housing (51), an infusion set head (52) and a syringe head (53); The housing (51) is composed of a disc and a pipe, the pipe is connected to the open end of the flushing pipe (10), and the disc is connected to the pipe and is connected to the flushing pipe (10) through the pipe; An infusion set head (52) and a syringe head (53) are fixed on the disc. The infusion set head (52) is used to connect the infusion set with the housing (51), and the syringe head (53) is used to connect the syringe with the housing (51).

9. The catheterization instrument with separate delivery and heating functions according to claim 8, characterized in that: The infusion head (52) comprises a polygonal groove and a check valve pipeline. The polygonal groove is arranged on the housing (51). Two ends of the check valve pipeline are respectively connected to the polygonal groove and the pipeline of the housing (51).

10. The catheterization instrument with separate delivery and heating functions according to claim 8, characterized in that: The syringe head (53) comprises a cylindrical groove and a syringe hole. The cylindrical groove is provided on the housing (51). The syringe hole is provided in the cylindrical groove for docking with the syringe outlet. The syringe hole is connected to a pipeline of the housing (51). A friction ring is provided on the inner wall annular surface of the cylindrical groove for frictionally limiting the syringe housing.

Images