Painless catheter

Abstract

The painless catheter comprises a catheter body and an expansion part, the catheter body comprises a far end, a middle part and a near end which are sequentially arranged, and the far end of the catheter body is used for stretching into the body of a patient; the expansion part is arranged on the side, close to the far end, of the catheter body, an interlayer cavity is formed in the expanded side wall, filler is input into the interlayer cavity, so that the expansion part expands to form a fixed balloon, the far end of the catheter body is in a closed state, the far end of the catheter body is further provided with a urination opening and a medicine spraying opening, the urination opening is communicated with the hollow part of the catheter body, and the medicine spraying opening is communicated with the medicine spraying opening. A medicine conveying channel is further arranged in the tube wall of the tube body, one end of the medicine conveying channel is communicated with the medicine spraying opening, and the other end of the medicine conveying channel extends to the near end of the tube body. Anesthetic is conveyed to the far end of the catheter body through the medicine conveying channel and sprayed to the urethra surface of a patient through the medicine spraying opening, and then discomfort of the patient is relieved. A one-way valve is further arranged in the medicine spraying opening, liquid can only be sprayed out of the pipe body from the medicine conveying channel through the one-way valve, and urine is effectively prevented from polluting anesthetic in the medicine conveying channel.

Description

Technical Field

[0001] The utility model relates to the technical field of urinary catheters, in particular to a painless urinary catheter. Background Art

[0002] Catheters have a very wide range of applications in medical practice. For example, disposable sterile catheters can solve patients' urination problems during the perioperative period. They are also used for urinary retention caused by lower urinary tract obstruction, compression hemostasis and bladder irrigation. They can also measure indicators such as bladder capacity, pressure, residual urine volume and the sense of cold and heat. However, because there are many sensory nerves on the urethral mucosa, the urethral mucosa will be strongly stimulated when the catheter is inserted, and the patient will feel pain, distension and other discomforts, especially male patients, who are extremely afraid of having a catheter.

[0003] At present, two-lumen latex catheters are mainly used clinically, one lumen is used for urine drainage, and the other lumen is used for water bag injection; because silicone can be safely placed in the human body for a long time, patients who need long-term retention will use silicone catheters; patients who need bladder irrigation will use three-lumen silicone catheters, two lumens are the same as the two-lumen catheter, and the other lumen is used for bladder irrigation. In order to reduce the irritation of the catheter to the urethra and relieve the patient's discomfort, medical staff will apply lubricants or lidocaine cream on the catheter and ask the patient to take a deep breath, but these measures have little effect. During the process of catheterization and when the catheter is removed, the patient still feels strong discomfort. Therefore, a new type of catheter is urgently needed to reduce the patient's discomfort. Utility Model Content

[0004] The utility model discloses a painless urinary catheter, which aims to solve the problem of how to provide a novel urinary catheter in the above background technology to alleviate the discomfort of patients.

[0005] In order to solve the above technical problems, the following technical solutions are proposed:

[0006] A painless urinary catheter comprises a tube body and an expansion part, wherein the tube body comprises a distal end, a middle part and a proximal end arranged in sequence, wherein the distal end of the tube body is used to extend into a patient's body; the expansion part is arranged on a side of the tube body close to the distal end, and a sandwich cavity is arranged in the side wall of the expansion part, and a filler is input into the sandwich cavity to expand the expansion part to form a fixed balloon, and the distal end of the tube body is in a closed state, and a urination port and a medicine spraying port are also arranged at the distal end of the tube body, wherein the urination port is communicated with the hollow part of the tube body, and a medicine delivery channel is also arranged in the tube wall of the tube body, wherein one end of the medicine delivery channel is communicated with the medicine spraying port, and the other end extends to the proximal end of the tube body;

[0007] Wherein, a one-way valve is also arranged in the medicine spraying port, and the liquid can only be sprayed out of the tube body from the medicine delivery channel through the one-way valve.

[0008] Preferably, the one-way valve is a one-way valve.

[0009] Preferably, the expansion portion comprises an inner wall and an outer wall, and the inner wall and the outer wall are spliced ​​to form the interlayer cavity.

[0010] Preferably, the drug delivery channel is disposed through the inner wall and extends into the distal end of the tube body.

[0011] Preferably, the middle portion of the tube body is also provided with the drug spraying port connected to the drug delivery channel.

[0012] Preferably, the top end of the tube body is in a semi-elliptical structure.

[0013] Preferably, the outer side wall of the tube body is also provided with a developing line.

[0014] Preferably, the middle portion of the tube body is also provided with the drug spraying port communicated with the drug delivery channel.

[0015] Beneficial effects: The utility model is a painless urinary catheter, comprising a tube body and an expansion part, wherein the tube body comprises a distal end, a middle part and a proximal end arranged in sequence, wherein the distal end of the tube body is used to extend into the patient's body; the expansion part is arranged on one side of the tube body close to the distal end, and a sandwich cavity is arranged in the expanded side wall, and a filler is input into the sandwich cavity to expand the expansion part to form a fixed balloon, and the distal end of the tube body is in a closed state, and a urination port and a medicine spraying port are also arranged at the distal end of the tube body, and the urination port is communicated with the hollow part of the tube body, and a medicine delivery channel is also arranged in the tube wall of the tube body, One end of the drug delivery channel is connected to the drug spray port, and the other end extends to the proximal end of the tube body; during use, the medical staff extends the distal end of the tube body into the patient's urethra, and fills the interlayer cavity with material to expand the expansion part to form a fixed balloon, thereby fixing the tube body in the patient's urethra to prevent the tube body from escaping from the patient's body. At the same time, the anesthetic agent is delivered to the distal end of the tube body through the drug delivery channel, and the anesthetic agent is delivered to the distal end of the tube body through the drug delivery channel, and the anesthetic agent is sprayed on the surface of the patient's urethra through the drug spray port, thereby reducing the patient's discomfort. Among them, a one-way valve is also provided in the drug spray port, through which the liquid can only be sprayed out of the tube body from the drug delivery channel, so that the urine in the urethra can only be discharged from the urination port of the tube body, which can effectively prevent the urine in the urethra from entering the drug delivery channel and contaminating the anesthetic agent in the drug delivery channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 A partial enlarged view of part A.

[0019] The main component symbols are described as follows:

[0020] 1. Tube body; 2. Expansion part; 3. Interlayer cavity; 4. Urinary outlet; 5. Spraying port;

[0021] 6. Drug delivery channel; 7. Inner wall; 8. Outer wall; 9. Infusion cavity; 10. One-way valve. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0024] The utility model is a painless urinary catheter. Figure 1-3 , comprising a tube body 1 and an expansion part 2, the tube body 1 comprising a distal end, a middle part and a proximal end arranged in sequence, the distal end of the tube body 1 being used to extend into the patient's body; the expansion part 2 being arranged on one side of the tube body 1 close to the distal end, the side wall of the expansion part 2 being provided with an interlayer cavity 3, by inputting a filler into the interlayer cavity, the expansion part 2 is expanded to form a fixed balloon, the distal end of the tube body 1 is in a closed state, the distal end of the tube body 1 is also provided with a urination port 4 and a medicine spraying port 5, the urination port 4 is communicated with the hollow part of the tube body 1, the tube wall of the tube body 1 is also provided with a medicine delivery channel 6, the medicine delivery channel 6 One end is connected to the spray port 5, and the other end extends to the proximal end of the tube body 1; during use, the medical staff extends the distal end of the tube body 1 into the patient's urethra, and fills the interlayer cavity with material to expand the expansion part 2 to form a fixed balloon, thereby fixing the tube body 1 in the patient's urethra to prevent the tube body 1 from escaping from the patient's body. At the same time, the anesthetic agent is delivered to the distal end of the tube body 1 through the drug delivery channel 6, and the anesthetic agent is delivered to the distal end of the tube body 1 through the drug delivery channel 6, and the anesthetic agent is sprayed on the surface of the patient's urethra through the spray port 5, thereby reducing the patient's discomfort. Among them, a one-way valve 10 is also provided in the spray port 5, through which the liquid can only be sprayed out of the tube body 1 from the drug delivery channel 6, so that the urine in the urethra can only be discharged from the urination port 4 of the tube body 1, which can effectively prevent the urine in the urethra from entering the drug delivery channel 6 and contaminating the anesthetic agent in the drug delivery channel 6.

[0025] In this embodiment, the one-way valve is a one-way valve. The one-way valve in the shape of a one-way valve is not only simple in structure, but also can effectively prevent urine or waste liquid in the urethra from entering the drug delivery channel 6 and contaminating the anesthetic agent in the drug delivery channel 6.

[0026] In this embodiment, the expansion portion 2 includes an inner wall 7 and an outer wall 8, which are spliced ​​to form a sandwich cavity. By filling the sandwich cavity with a filler, the outer wall 8 is expanded outward to form a fixed balloon, thereby fixing the tube body 1 in the patient's urethra to prevent the tube body 1 from escaping from the patient's body. More preferably, the softness of the material of the outer wall 8 is softer than the softness of the material of the inner wall 7, that is, the elastic coefficient of the outer wall 8 is smaller than that of the inner wall 7, which also leads to the outer wall 8 being more likely to expand outward after the filler is filled into the sandwich cavity, thereby making it easier to form a fixed balloon.

[0027] In this embodiment, the drug delivery channel 6 extends into the distal end of the tube body 1 through the inner wall 7, so as to reduce the influence of the filler in the interlayer cavity on the drug delivery channel 6 when the expansion part 2 expands.

[0028] In this embodiment, the distal end of the tube body 1 is in a semi-elliptical structure, which not only allows the tube body 1 to be inserted into the patient's urethra more easily, but also makes the patient more comfortable. More preferably, the distal end of the tube body 1 is in a hard inner and soft outer structure, so that the tube body 1 can be inserted into the patient's urethra more easily.

[0029] In this embodiment, an infusion cavity 9 is provided in the side wall at the distal end of the tube body, and the spray port 5 and the drug delivery channel 6 are both connected to the infusion cavity 9. During use, medical staff delivers the anesthetic agent to the infusion cavity 9 through the drug delivery channel 6, and then sprays the anesthetic agent out through the spray port 5.

[0030] In this embodiment, the outer wall of the tube body 1 is also provided with a developing line that can be detected by radiation, so that the position of the tube body 1 can be determined by radiation when necessary.

[0031] In this embodiment, a drug spray port connected to the drug delivery channel is also provided in the middle of the catheter. When the medical staff removes the catheter from the patient's body, the drug solution is sprayed through the drug spray port in the middle of the catheter to alleviate the patient's discomfort.

[0032] The above disclosures are only several specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A painless urinary catheter, characterized in that: The invention comprises a tube body and an expansion part, wherein the tube body comprises a distal end, a middle part and a proximal end which are arranged in sequence, and the distal end of the tube body is used to extend into the patient's body; the expansion part is arranged on a side of the tube body close to the distal end, and a sandwich cavity is arranged in the side wall of the expansion part, and a filler is input into the sandwich cavity to expand the expansion part to form a fixed balloon, and the distal end of the tube body is in a closed state, and a urination port and a medicine spraying port are also arranged at the distal end of the tube body, and the urination port is communicated with the hollow part of the tube body, and a medicine delivery channel is also arranged in the tube wall of the tube body, and one end of the medicine delivery channel is communicated with the medicine spraying port, and the other end extends to the proximal end of the tube body; Wherein, a one-way valve is also arranged in the medicine spraying port, through which the liquid can only be sprayed out of the tube body from the medicine delivery channel.

2. The painless urinary catheter according to claim 1, characterized in that: The one-way valve is a one-way valve.

3. The painless urinary catheter according to claim 1, characterized in that: The expansion portion comprises an inner wall and an outer wall, and the inner wall and the outer wall are spliced ​​to form the sandwich cavity.

4. The painless urinary catheter according to claim 3, characterized in that: The drug delivery channel is disposed through the inner wall and extends into the distal end of the tube body.

5. The painless urinary catheter according to claim 1, characterized in that: The top end of the tube body is in a semi-elliptical structure.

6. The painless urinary catheter according to claim 5, characterized in that: An infusion cavity is arranged in the side wall of the distal end of the tube body, and the medicine spraying port and the medicine delivery channel are both communicated with the infusion cavity.

7. The painless urinary catheter according to claim 1, characterized in that: The outer side wall of the tube body is also provided with a developing line.

8. The painless urinary catheter according to claim 1, characterized in that: The middle part of the tube body is provided with the medicine spraying port which is communicated with the medicine delivery channel.

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