CN108355229B

CN108355229B - Bending guide type male urethra catheter

Info

Publication number: CN108355229B
Application number: CN201810258849.7A
Authority: CN
Inventors: 沈善林
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-27
Filing date: 2018-03-27
Publication date: 2024-05-24
Anticipated expiration: 2038-03-27
Also published as: CN108355229A

Abstract

The invention discloses a bent position guiding type male urethra catheter, and mainly relates to the technical field of clinical male catheterization. Including the catheter, flexible guide tube has been cup jointed to the outside of catheter, the guide tube is including guiding portion and the connecting portion that connect gradually, guiding portion is close to the front end setting of catheter, one side of guiding portion distributes along its length direction has 4 ~8 incisions, guiding portion is provided with notched one side and is equipped with the gasbag chamber, the gasbag chamber suits with the length of guiding portion, the connecting portion is equipped with the inflation channel along its length direction, the front end of inflation channel is linked together with the gasbag chamber, the rear end of inflation channel is equipped with the air cock and connects. The invention has the beneficial effects that: the urethral catheter can avoid continuously rubbing the pubic bending part of the urethra in the insertion process, greatly reduce the damage to the urethra in the operation and reduce the pain and the complications in the operation of patients.

Description

Bending guide type male urethra catheter

Technical Field

The invention relates to the technical field of clinical male catheterization, in particular to a bent position guiding type male urethra catheter.

Background

The urinary bladder indwelling catheter refers to a method of inserting a sterile catheter into the urinary bladder through the urethra to draw out urine under strict aseptic operation, and leaving the catheter in the urinary bladder to drain urine. Is matched with the common clinical nursing operation of the urinary system diseases after preoperative operation. Since the male urethra originates from the inner orifice of the urinary bladder and ends at the outer orifice of the urinary tract of the glans penis, the total length is 18-20 cm, and the male urethra has the characteristics of one-long, two-bending and three-stenosis. Wherein the subpubic curve of the two curves is located below the pubic symphysis, and the depression is upward, including the beginning of the prostate, membrane and corpus cavernosum. The bending part is constant and unchanged, and can not be changed or eliminated through operation and body position, so that a main resistance area in the intubation process is caused, a certain difficulty is brought to catheterization, and a great pain is brought to the operation of a patient.

At the bend of the pubic sub, the front end of the catheter continuously props against the inner wall of the urethra during intubation because of larger bending, so that bending is passively generated, and larger pressure and friction are continuously caused on the inner wall of the urethra at the pubic sub. Causing and continuing patient pain and even causing patient urethral damage due to constant friction and pressure. And because of more glands and tissues nearby, various complications are easily caused.

Based on the above reasons, in the catheterization, discomfort and pain feeling of male patients are obvious, certain intraoperative complications exist, meanwhile, the existing clinical treatment on the problems can only depend on the operation method, the effect is poor, the service level and experience requirements of operators are high, and the adverse effect of pubic hypocursis on the catheterization is difficult to solve.

Disclosure of Invention

The invention aims to provide a bend guiding type male urethra catheter, which avoids the continuous friction of a pubic bending part of a urethra during the insertion process of a catheter, greatly reduces the damage to the urethra during operation, and reduces the pain and the complications during operation of patients.

The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:

The utility model provides a curved position guide formula male urethra pipe, includes the catheter, flexible guide tube has been cup jointed to the outside of catheter, the guide tube is including guiding portion and the connecting portion that connect gradually, guiding portion is close to the front end setting of catheter, one side of guiding portion distributes along its length direction has 4 ~ 8 incisions, guiding portion is provided with notched one side and is equipped with the gasbag chamber, the gasbag chamber suits with the length of guiding portion, the connecting portion is equipped with the inflation channel along its length direction, the front end and the gasbag chamber of inflation channel are linked together, the rear end of inflation channel is equipped with the air cock and connects.

The gasbag chamber includes unit chamber and intercommunication chamber, the intercommunication chamber sets up along the length direction of guide portion, just the adjacent incision root of intercommunication chamber sets up, the incision is a plurality of expansion portion with the guide portion, the unit chamber sets up in the expansion portion, just unit chamber and intercommunication chamber are linked together.

The inner wall of the guiding part is smeared with medical lubricant.

The length of the guide tube is 16-25 cm.

The tail end of the catheter is provided with a three-cavity connector or a double-cavity connector, and the three-cavity connector or the double-cavity connector is detachably connected with the catheter.

The side wall of the connecting part is also provided with a drug delivery channel along the length direction, one end of the drug delivery channel is provided with a heparin cap communicated with the drug delivery channel, and the outer wall of the drug delivery channel is provided with a plurality of drug delivery holes.

Compared with the prior art, the invention has the beneficial effects that:

In the preoperative preparation, the guide tube is sleeved at the front part of the catheter, the front end of the catheter penetrates out 1-3 cm from the front end of the guide part, the sleeve joint state is kept during insertion, the sleeve joint state is inserted together, the air bag cavity is filled with liquid/gas when reaching the pubic curved part, and the side provided with the notch is inflated and swelled after being filled with the liquid/gas, so that the whole guide tube is deformed and fixed into a curved form. Because the urethra of the pubic ramus is wider than other parts, the guide tube can be fixed in an arc-shaped two-head tilting mode by slightly expanding, so that a channel with a fixed shape is formed at the urethra of the pubic ramus. After that, the guiding tube is clamped and is not moved, the catheter is inserted inwards continuously, the catheter is inserted in a bending way under the guiding of the bending guiding part, the catheter does not continuously rub the inner wall of the urethra any more, and the patient is prevented from continuously pain.

In conclusion, the catheter is used for catheterization operation on adult males, so that the discomfort and pain time of the patients can be obviously shortened, and pain in the male catheterization can be relieved. Avoid the catheter to continuously rub the pubic bone bending part of the urethra in the inserting process, greatly reduce the damage to the urethra in the operation and reduce the complication in the operation.

Drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

FIG. 2 is an enlarged view of section I of FIG. 1 of the present invention.

FIG. 3 is an enlarged view of section II of FIG. 1 in accordance with the present invention.

FIG. 4 is a cross-sectional view of section A-A of FIG. 1 in accordance with the present invention.

FIG. 5 is a section view of section B-B of FIG. 1 according to the present invention.

FIG. 6 is a cross-sectional view of the portion C-C of FIG. 1 in accordance with the present invention.

Fig. 7 is a schematic view of the structure of the front half of the present invention.

Fig. 8 is a schematic of the front half of the present invention.

Fig. 9 is a schematic view of the use state of the present invention.

The reference numbers shown in the drawings:

1. A urinary catheter; 2. a guide section; 3. a connection part; 4. a notch; 5. an air bag cavity; 6. an inflation channel; 7. an air tap joint; 8. a cell cavity; 9. a communication chamber; 10. an expansion section; 11. drug administration wells.

Detailed Description

The application will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the application, and equivalents thereof fall within the scope of the application as defined by the claims.

The invention relates to a bending guide type male urethra catheter, the main structure of which comprises a catheter 1, the catheter is not limited to various catheters 1 used in the prior clinic, the outside of the catheter 1 is sleeved with a flexible guide tube, the guide tube comprises a guide part 2 and a connecting part 3 which are sequentially connected, the guide part 2 and the connecting part 3 of the guide tube are integrally formed, various medical materials which are common in the clinic and can have certain ductility, such as silica gel, latex, silicone rubber and the like can be used, the guide part 2 is arranged near the front end of the catheter 1, one side of the guide part 2 is distributed with 4-8 cuts 4 along the length direction of the guide part, one side of the guide part 2 provided with the cuts 4 is provided with a balloon cavity 5, the balloon cavity 5 is inflated after being inflated, the structure of the cuts 4 is matched, after the cuts 4 are partially arched, one side provided with the cuts 4 extends, one side provided with the cuts 4 and the balloon cavity 5 is compressed, and the whole presents an arc shape, namely, the two sides of the balloon cavity 5 are raised, as shown in the figure 8, the bending channel can be formed inside the catheter 1. The guiding and steering of the catheter 1 during insertion are realized through the bending channel, and continuous friction and extrusion of the inner wall of the urethra at the pubic curve part in the insertion process of the existing clinical catheter 1 are avoided, so that the pain of a patient is obviously reduced, and the complications of clinical catheterization are reduced. The air bag cavity 5 is adapted to the length of the guiding part 2, and the connecting part 3 is provided with an inflation channel 6 along the length direction thereof for communicating the air bag cavity 5, so that liquid injection or inflation is facilitated. The front end of the inflation channel 6 is communicated with the air bag cavity 5, and the rear end of the inflation channel 6 is provided with an air tap joint 7. The injector can be conveniently inserted or communicated with a sterile gas device.

The air bag cavity 5 comprises a unit cavity 8 and a communication cavity 9, the communication cavity 9 is arranged along the length direction of the guide part 2, the root of an adjacent notch 4 of the communication cavity 9 is arranged, the notch 4 divides the guide part 2 into a plurality of expansion parts 10, the unit cavity 8 is arranged in the expansion parts 10, and the unit cavity 8 is communicated with the communication cavity 9.

The inner wall of the guiding part 2 is smeared with medical lubricant. Medical lubricant is smeared on the inner wall of the connecting part 3, so that the catheter 1 can slide in the guide tube after the guide part 2 is injected for shaping.

The length of the guide tube is 16-25 cm. After the catheter 1 is inserted in place and secured, the balloon lumen 5 is evacuated/vented of liquid/gas and the catheter is withdrawn from the urethra. The withdrawn guiding tube can be temporarily sleeved at the part of the catheter 1 located outside the body, and the used catheter 1 is generally required to be 5-10 cm longer than the conventional length of 40cm clinically, so that the guiding tube can be directly withdrawn. The catheter can also be matched with a catheter 1 of a clinic male with the length of 40cm, the withdrawn guide tube is removed from the catheter 1, the tail end joint of the catheter 1 is arranged to be of a detachable structure, and after the guide tube is withdrawn, the joint of the catheter 1 is removed, and the guide tube is taken down from the catheter 1.

The tail end of the catheter 1 is provided with a three-cavity connector or a double-cavity connector, and the three-cavity connector or the double-cavity connector is detachably connected with the catheter 1. For example using a threaded connection. The connection portion 3 is provided with a sealing means such as a gasket.

In view of the potentially strong sensitivity of individual patients, and the existence of patients with already damaged urethra, sterile fluid or medication may be administered while advancing into the tube. The side wall of the connecting part 3 is also provided with a drug delivery channel along the length direction, one end of the drug delivery channel is provided with a heparin cap communicated with the drug delivery channel, and the outer wall of the drug delivery channel is provided with a plurality of drug delivery holes 11. Can be injected or administered while entering the tube, and the sterile liquid or medicine is released into the urethra from the administration hole 11 to flush and massage the urethra, thereby relieving the discomfort of the patient in entering the tube.

The application method of the invention comprises the following steps: the preoperative guiding tube is sleeved on the catheter 1, the front end of the catheter 1 is exposed by 1-3 cm from the front end of the guiding part 2, the guiding tube sleeved on the catheter 1 is clamped in the operation and inserted into the urethra by 12-15 cm, the incision 4 is positioned at the bottom side when the guiding tube is inserted, the guiding tube is slightly inwards inserted by 2cm when the guiding tube is in resistance, the guiding tube is suspended, gas or sterile liquid is injected into the air sac cavity 5, the guiding tube is clamped again for 6-8 cm when the guiding tube is kept still, the guiding tube 1 is fixed after urine flows out, and the guiding tube is deflated and withdrawn after the guiding tube is inserted by 4-7 cm.

Example 1: the utility model provides a curved position guide formula male urethra pipe, the major structure includes catheter 1, catheter 1 length 48cm, flexible guide tube has been cup jointed to catheter 1's outside, guide tube length 20cm, the guide tube is including guiding portion 2 and connecting portion 3 that connect gradually, it has medical lubricant to scribble on the inner wall of guiding portion 2. The guide part 2 is close to the front end setting of catheter 1, one side of guide part 2 has 6 incisions 4 along its length direction distribution, incision 4 divide into 7 inflation parts 10 with guide part 2, one side that guide part 2 was provided with incision 4 is equipped with gasbag chamber 5, gasbag chamber 5 suits with the length of guide part 2, gasbag chamber 5 includes unit chamber 8 and intercommunication chamber 9, intercommunication chamber 9 sets up along the length direction of guide part 2, just the adjacent incision 4 root of intercommunication chamber 9 sets up, unit chamber 8 sets up in inflation part 10, just unit chamber 8 is linked together with intercommunication chamber 9. The connecting portion 3 is provided with an inflation channel 6 along the length direction thereof, the front end of the inflation channel 6 is communicated with the air bag cavity 5, and the rear end of the inflation channel 6 is provided with an air tap joint 7.

Example 2: the utility model provides a bend guide formula male urethra pipe, the major structure includes catheter 1 of 40cm, the end of catheter 1 is equipped with the three-chamber joint, three-chamber joint and catheter 1 detachable threaded connection, and the junction is equipped with sealed pad. The outside of the catheter 1 is sleeved with a flexible guide tube, and the length of the guide tube is 24cm. The guide tube comprises a guide part 2 and a connecting part 3 which are sequentially connected, the guide part 2 is arranged near the front end of the catheter 1, 8 cuts 4 are distributed on one side of the guide part 2 along the length direction of the guide part, the cuts 4 divide the guide part 2 into a plurality of expansion parts 10, an air bag cavity 5 is arranged on one side of the guide part 2, provided with the cuts 4, the air bag cavity 5 is adaptive to the length of the guide part 2, the air bag cavity 5 comprises a unit cavity 8 and a communicating cavity 9, the communicating cavity 9 is arranged along the length direction of the guide part 2, the communicating cavity 9 is arranged near the root of the cuts 4, the unit cavity 8 is arranged in the expansion parts 10, and the unit cavity 8 is communicated with the communicating cavity 9. The connecting portion 3 is provided with an inflation channel 6 along the length direction thereof, the front end of the inflation channel 6 is communicated with the air bag cavity 5, and the rear end of the inflation channel 6 is provided with an air tap joint 7.

Example 3: using the catheter of example 1, male catheterization was performed, the procedure including the following: the patient bends the knees and abducts, and the buttocks is padded with oilcloth or a middle sheet. The patient firstly washes the vulva by soap solution; and the foreskin is opened for cleaning. The iodophor or 0.1% of the benzalkonium bromide can be used for disinfecting the urethral orifice and the external pudendum from inside to outside in a ring shape. The penis is wrapped by the sterilizing towel, and the urethral orifice is exposed. The operator wears sterile gloves, holds the penis with thumb and indicator of left hand, lifts the penis to make pubic antecedent bend disappear, exposes the front end of the guiding part 2 of the catheter 1 by 1.5cm, holds the guiding tube coated with sterile lubricating oil by right hand (and synchronously inserts the catheter 1) into the urethra, makes the incision 4 at the bottom side when the catheter is inserted, slightly sends in 2cm inwards with resistance, pauses, injects sterile liquid into the air sac cavity 5 by using a syringe, holds the catheter 1 again to insert 6-8 cm while keeping the guiding tube still, inserts 4-7 cm after urine flows out, fixes the catheter 1, deflates the air sac cavity 5 and slowly withdraws the guiding tube.

Claims

1. A bend guiding male urinary catheter, comprising a catheter, characterized in that: the outside of the catheter is sleeved with a flexible guide tube, the guide tube comprises a guide part and a connecting part which are connected in sequence, the guide part is arranged close to the front end of the catheter, 4-8 cuts are distributed on one side of the guide part along the length direction of the guide part, an air bag cavity is arranged on one side of the guide part, which is provided with the cuts, the air bag cavity is adapted to the length of the guide part, an inflation channel is arranged on the connecting part along the length direction of the connecting part, the front end of the inflation channel is communicated with the air bag cavity, and an air tap joint is arranged at the rear end of the inflation channel;

The air bag cavity comprises a unit cavity and a communication cavity, the communication cavity is arranged along the length direction of the guide part, the root of the adjacent notch of the communication cavity is provided, the notch divides the guide part into a plurality of expansion parts, the unit cavity is arranged in the expansion parts, and the unit cavity is communicated with the communication cavity;

The inner wall of the guiding part is smeared with medical lubricant.

2. A bend-guiding male urinary catheter as claimed in claim 1, wherein: the length of the guide tube is 16-25 cm.

3. A bend-guiding male urinary catheter as claimed in claim 1, wherein: the tail end of the catheter is provided with a three-cavity connector or a double-cavity connector, and the three-cavity connector or the double-cavity connector is detachably connected with the catheter.

4. A bend-guiding male urinary catheter as claimed in claim 1, wherein: the side wall of the connecting part is also provided with a drug delivery channel along the length direction, one end of the drug delivery channel is provided with a heparin cap communicated with the drug delivery channel, and the outer wall of the drug delivery channel is provided with a plurality of drug delivery holes.