CN106345039A - Urinary catheter introduction apparatus - Google Patents

Abstract

The present invention is a device for introducing a urinary catheter, which includes a rigid hollow tube and a silicone catheter; the silicone catheter is arranged in the rigid hollow tube, and one side of the rigid hollow tube is provided with a longitudinal through opening , the structure is used to put the silicone catheter into and separate the hard hollow tube from the silicone catheter after use, the front end of the hard hollow tube is blunt, and a handle is provided for easy operation; The front end of the hard hollow tube is set in a curved structure, which conforms to the physiological curvature of the male penis, and the rear end of the hard hollow tube is also provided with a trumpet-shaped structure or a T-shaped structure. The handle of the hard hollow tube, the middle Empty pipe and trumpet-shaped structure or T-shaped structure are integrally formed. The invention can effectively pass through the stenosis of the male urethra, adapt to its physiological curvature, and has little harm to the patient.

Description

Catheter introduction device

technical field

The invention belongs to a medical device for introducing a ureter (urethral catheter), in particular to a medical device for introducing a ureter for a male suffering from urethral stricture, in particular to a device for introducing a urinary catheter.

Background technique

Urethral stricture is one of the common diseases in urology. It is more common in men. The clinical manifestations of this type of patients are diverse, so the treatment methods are also different. Patients mainly present with dysuria, urinary retention, urinary tract infection, bladder stones, etc. Symptoms, severe cases even renal dysfunction, male infertility and sexual dysfunction, seriously affect the quality of life of patients, and even endanger the lives of patients.

For patients with dysuria, catheterization and drainage are generally used before surgery, while for patients with urethral stricture, traditional catheters cannot pass through the narrow area of the male urethra. The conventional operation is to use the inner support of the metal guide wire to guide the silicone tube into the bladder. However, during the operation, because the guide wire is relatively soft and sharp, when passing through the narrow area, the guide wire is often pierced out of the catheter, damaging the urethra, and forming a Severe complications such as hemorrhage, infection, and rectal fistula. In the prior art, there are also some structurally more complex guiding catheters. The effect of introducing the urinary catheter into the catheter by the catheter introducing device in the prior art is not good, and it is easy to cause harm to the patient.

The object of the present invention is to provide a urinary catheter introduction device to solve the problems that the catheter introduction device in the prior art cannot introduce the catheter well, and cannot protect the patient's urethra well during the introduction process.

Contents of the invention

In order to overcome the problems that the prior art catheter introduction device can not introduce the catheter well, and can not protect the patient's urethra well during the introduction process, the purpose of the present invention is to provide a catheter that can solve the above problems Bring in the instrument.

The object of the present invention is achieved through the following technical solutions:

A catheter introduction device, which includes a hard hollow tube and a silicone catheter, characterized in that the silicone catheter is set in the hard hollow tube, and one side of the hard hollow tube is arranged longitudinally through Opening, the silicone catheter is put into and removed from the hard hollow tube through the longitudinal opening; the front end of the hard hollow tube is blunt, and a handle is provided for easy operation; the front end of the silicone catheter is removed from the hard protruding from the empty tube; the front end of the hard hollow tube is provided with a curved part conforming to the physiological curvature of the male penis. The above structure can effectively introduce the urinary catheter into the body of patients with urethral stricture and play a role.

Further, the rear end of the hard hollow tube is provided with a horn-shaped structure or a T-shaped structure, and the end of the horn-shaped structure is also provided with a T-shaped structure, and the horn-shaped structure or T-shaped structure is connected to the hard hollow tube. Further, the The trumpet-shaped structure or the T-shaped structure partially surrounds the rigid hollow tube. The trumpet-shaped structure and the T-shaped structure can facilitate the removal of the hard hollow tube after the operation and the convenience of fixing the silicone catheter to the hard hollow tube during the operation to prevent the catheter from being connected to the hard hollow tube. Relative movement of position.

Further, the handle of the hard hollow tube, the hollow tube and the trumpet-shaped structure or the T-shaped structure are integrally formed. The one-piece structure reduces the connection structure between each other, making the device more convenient and firm to use.

Further, a clip structure is provided at the horn-shaped structure or the T-shaped structure. The clip is used to fix the silicone catheter on the trumpet-shaped structure or T-shaped structure to prevent the relative movement of the silicone catheter and the hard hollow tube, thereby effectively preventing the front end of the catheter from retracting and effectively preventing the hard Damage to the tissue of the urethra by the hollow tube.

Further, the size of the longitudinal through opening accounts for 1/4-1/3 of the circumference of the entire rigid hollow tube. Appropriate opening size can effectively put the silicone catheter into and out of the rigid hollow tube.

Further, the preferred ratio of the opening size of the longitudinal through opening to the circumference of the entire rigid hollow tube is 1/3.

Further, the diameter of the rigid hollow tube is slightly larger than the outer diameter of the silicone catheter. This setting can further ensure the relative stability of the position of the silicone catheter when it is combined with the hard hollow tube, and prevent relative movement.

Further, the handle is flat, which is convenient for grasping and operation during operation.

Further, the material of the hard hollow tube can be any hard material, such as hard metal, hard plastic, among which medical stainless steel is preferred.

Further, the catheter introduction device is provided with different diameter models. Different models of settings can meet the needs of different patients.

Further, the catheter introduction device is provided with F12, F14, F16, F18, F20, F22, F24 and other related models.

Further, the sterilized urinary catheter introduction instrument is arranged in a packaging bag of a suitable size.

Further, the rigid hollow tube and the silicone catheter of the urinary catheter introduction device in the package are socketed structures, and the clips are separately arranged in the packaging bag.

Further, the catheter introducing device is a disposable medical device.

When in use, take the introduction device out of the packaging bag, slightly adjust the relative position of the hard hollow tube and the silicone catheter, so that the front end of the silicone catheter protrudes from the hard hollow tube, and clamp the clip At the trumpet-shaped structure or T-shaped structure, prevent the relative movement of the hard hollow tube and the silicone catheter; after setting, slowly pass the introduction device through the urethra of patients with urethral stricture, and use the curved part to slowly pass through The physiological curvature of the male urethra and the narrow urethra, stop inserting the silicone catheter after it reaches the bladder; then inflate or fill the air bag or water bag structure with an inflatable or water-filled device to fix the silicone catheter in the bladder Inside; slowly withdraw the hard hollow tube, the setting of the bell mouth can facilitate the withdrawal of the hard silicone tube, complete the introduction of the catheter, and finally connect the urine storage bag at the end of the catheter.

Compared with the prior art, the catheter introducing device of the present invention is integrally formed, with higher strength, no mechanical failure, and simpler and more practical operation; the setting of the curved part can make the catheter pass through the physiological curvature of the urethra smoothly; The position setting of the high-quality hollow tube and the silicone catheter can ensure that the catheter can pass through the narrow area smoothly without damaging the urethra; the setting of the longitudinal through opening and the trumpet-shaped structure or T-shaped structure can ensure , the effective exit of the hard hollow tube, the horn-shaped structure or the T-shaped structure and the setting of the clip structure can ensure the stability of the position of the catheter and the hard hollow tube when entering. In a word, this structure can well realize the effect of introducing the catheter into the bladder of patients with urethral stricture.

Description of drawings

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

Fig. 2 is a schematic structural view of a rigid hollow tube in Embodiment 1 of the present invention;

3 is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

Fig. 4 is a schematic structural view of a rigid hollow tube in Embodiment 2 of the present invention;

In the figure, 1. hard hollow tube; 11. longitudinal through opening; 12. trumpet-shaped structure; 13. handle; 14. curved part; 15. T-shaped structure; 2. silicone catheter; 3. clip.

detailed description

Because the silica gel catheter uses the structure of the prior art, the present invention does not provide the specific structure of the silica gel catheter. If the structure is not given, reference may be made to the silicone urinary catheter in the prior art.

Embodiment 1 A kind of catheter introducing instrument

A catheter introduction device, which includes a hard hollow tube 1 and a silicone catheter 2, characterized in that the silicone catheter 2 is set in the hard hollow tube 1, and one side of the hard hollow tube 1 A longitudinal through opening 11 is provided, and the silicone catheter 2 is put into and removed from the hard hollow tube 1 through the longitudinal through opening 11; The front end of the catheter 2 protrudes from the hard hollow tube 1; the front end of the hard hollow tube 1 is provided with a curved part 14 that conforms to the physiological curvature of the male penis; the back end of the hard hollow tube 1 is connected to a T-shaped structure 15, The T-shaped structure 15 partially surrounds and connects the hard hollow tube 1 , and a clip 3 is provided at the T-shaped structure 15 to prevent relative movement between the silicone catheter 2 and the hard hollow tube 1 after entering the urethra. The handle 13 of the hard hollow tube 1, the hollow tube and the horn-shaped structure 12 are integrally formed. The one-piece structure reduces the connection structure between each other, making the device more convenient and firm to use. The opening size of the longitudinal through opening 11 accounts for 1/4 of the circumference of the entire rigid hollow tube 1 . A suitable opening size can effectively put the silicone catheter 2 into and remove the hard hollow tube 1 . The diameter of the hard hollow tube 1 is slightly larger than the outer diameter of the silicone urinary catheter 2 . This setting can ensure the relatively stable position when the silicone catheter 2 is combined with the hard hollow tube 1 and prevent relative movement. The material of the hard hollow tube 1 can be selected from medical stainless steel. The catheter introduction device is equipped with F12, F14, F16, F18, F20 related models. The above structure can effectively introduce the urinary catheter into the body of patients with urethral stricture and play a role.

Embodiment 2 A kind of catheter introducing instrument

A catheter introduction device, which includes a hard hollow tube 1 and a silicone catheter 2, characterized in that the silicone catheter 2 is set in the hard hollow tube 1, and one side of the hard hollow tube 1 A longitudinal through opening 11 is provided, and the silicone catheter 2 is put into and removed from the hard hollow tube 1 through the longitudinal through opening 11; The front end of the urinary catheter 2 protrudes from the hard hollow tube 1; the front end of the hard hollow tube 1 is provided with a curved part 14 that conforms to the physiological curvature of the male penis; the rear end of the hard hollow tube 1 is connected to a trumpet-shaped structure 12, The end of the horn-shaped structure 12 is provided with a T shape, and the horn-shaped structure 12 is partially connected to the hard hollow tube 1; in addition, a clip 3 is set at the horn-shaped structure 12 to prevent the silicone catheter 2 from entering the urethra and the hard hollow tube 1 relatively mobile. The above structure can effectively introduce the urinary catheter into the body of patients with urethral stricture and play a role. The handle 13 of the rigid hollow tube 1, the hollow tube and the trumpet-shaped structure 12 are integrally formed. The one-piece structure reduces the connection structure between each other, making the device more convenient and firm to use. The opening size of the longitudinal through opening 11 accounts for 1/3 of the circumference of the entire rigid hollow tube 1 . A suitable opening size can effectively put the silicone catheter 2 into and remove the hard hollow tube 1 . The diameter of the hard hollow tube 1 is slightly larger than the outer diameter of the silicone urinary catheter 2 . This kind setting can guarantee the relatively stable position when the silicone catheter 2 is combined with the hard hollow tube 1, and prevents relative movement. The material of the hard hollow tube 1 can be selected from medical stainless steel. The catheter introduction device is equipped with F12, F14, F16, F18, F20 related models. The above structure can effectively introduce the urinary catheter into the body of patients with urethral stricture and play a role.

Embodiment 3 A kind of catheter introducing instrument

A catheter introduction device, which includes a hard hollow tube 1 and a silicone catheter 2, characterized in that the silicone catheter 2 is set in the hard hollow tube 1, and one side of the hard hollow tube 1 A longitudinal through opening 11 is provided, and the silicone catheter 2 is put into and removed from the hard hollow tube 1 through the longitudinal through opening 11; The front end of the urinary catheter 2 protrudes from the hard hollow tube 1; the front end of the hard hollow tube 1 is provided with a curved part 14 that conforms to the physiological curvature of the male penis; the rear end of the hard hollow tube 1 is connected to a trumpet-shaped structure 12, The end of the horn-shaped structure 12 is provided with a T-shape, and the horn-shaped structure 12 is partially connected to the hard hollow tube 1; in addition, a clip 3 is set at the horn-shaped structure 12 to prevent the silicone catheter 2 from entering the urethra and the hard hollow tube 1 relatively mobile. The above structure can effectively introduce the urinary catheter into the body of patients with urethral stricture and play a role. The handle 13 of the rigid hollow tube 1, the hollow tube and the trumpet-shaped structure 12 are integrally formed. The one-piece structure reduces the connection structure between each other, making the device more convenient and firm to use. The opening size of the longitudinal through opening 11 accounts for 1/3 of the circumference of the entire rigid hollow tube 1 . A suitable opening size can effectively put the silicone catheter 2 into and remove the hard hollow tube 1 . The diameter of the hard hollow tube 1 is slightly larger than the outer diameter of the silicone urinary catheter 2 . This setting can ensure the relatively stable position when the silicone catheter 2 is combined with the hard hollow tube 1 and prevent relative movement. The material of the hard hollow tube 1 can be selected from medical stainless steel. The catheter introduction device is equipped with F12, F14, F16, F18, F20 related models. The sterilized urinary catheter introduction instrument is arranged in a packaging bag of a suitable size. The rigid hollow tube 1 and the silicone catheter 2 of the urinary catheter introduction device in the package are socketed structures, and the clip 3 is separately arranged in the packaging bag.

Embodiment 4 A kind of catheter introducing instrument

A catheter introduction device, which includes a hard hollow tube 1 and a silicone catheter 2, characterized in that the silicone catheter 2 is set in the hard hollow tube 1, and one side of the hard hollow tube 1 A longitudinal through opening 11 is provided, and the silicone catheter 2 is put into and removed from the hard hollow tube 1 through the longitudinal through opening 11; The front end of the catheter 2 protrudes from the hard hollow tube 1; the front end of the hard hollow tube 1 is provided with a curved part 14 that conforms to the physiological curvature of the male penis; the back end of the hard hollow tube 1 is connected to a T-shaped structure 15, The T-shaped structure 15 partially surrounds and connects the hard hollow tube 1; in addition, a clip 3 is provided at the T-shaped structure 15 to prevent the silicone catheter 2 from moving relative to the hard hollow tube 1 from entering the urethra. The above structure can effectively introduce the urinary catheter into the body of patients with urethral stricture and play a role. The handle 13 of the rigid hollow tube 1, the hollow tube and the trumpet-shaped structure 12 are integrally formed. The one-piece structure reduces the connection structure between each other, making the device more convenient and firm to use. The opening size of the longitudinal through opening 11 accounts for 1/3 of the circumference of the entire rigid hollow tube 1 . A suitable opening size can effectively put the silicone catheter 2 into and remove the hard hollow tube 1 . The diameter of the hard hollow tube 1 is slightly larger than the outer diameter of the silicone urinary catheter 2 . This setting can ensure the relatively stable position when the silicone catheter 2 is combined with the hard hollow tube 1 and prevent relative movement. The material of the hard hollow tube 1 can be selected from medical stainless steel. The catheter introduction device is equipped with F12, F14, F16, F18, F20 related models. The sterilized urinary catheter introduction instrument is arranged in a packaging bag of a suitable size. The rigid hollow tube 1 and the silicone catheter 2 of the urinary catheter introduction device in the package are socketed structures, and the clip 3 is separately arranged in the packaging bag. The urinary catheter introduction device is a single-use medical device.

The above descriptions of the embodiments are only for the understanding of the present invention. It should be pointed out that those skilled in the art can make some improvements to the present invention without departing from the principles of the present invention, and these improvements will also fall within the protection scope of the claims of the present invention.

Claims (10)

1. a catheter introduction apparatus, it comprises hard hollow tube (1) and silica gel catheter (2), it is characterized in that, described silica gel catheter (2) is arranged on hard hollow tube ( In 1), a longitudinal through opening (11) is provided on one side of the hard hollow tube (1), and the silicone catheter (2) is inserted into and removed from the hard hollow tube (1) through the longitudinal through opening (11). The front end of the hard hollow tube (1) is blunt, and a handle (13) for easy operation is arranged at the rear end; the front end of the silicone catheter (2) extends from the hard hollow tube (1) Out; the front end of the hard hollow tube (1) is provided with a curved part (14) conforming to the physiological curvature of the male penis. 2. catheter introducing apparatus according to claim 1, is characterized in that, described hard hollow tube (1) rear end is provided with horn-shaped structure (12) or T-shaped structure (15), and horn-shaped structure ( 12) A T-shape is also provided at the end, and the horn-shaped structure (12) and the T-shaped structure (15) are connected to the hard hollow tube (1). 3. The urinary catheter introducing device according to claim 2, characterized in that a clip structure is provided at the trumpet-shaped structure (12) or the T-shaped structure (15). 4. catheter introducing apparatus according to claim 1, is characterized in that, the handle (13) of this hard hollow tube (1), hollow tube and trumpet-shaped structure (12) or T-shaped structure (15) ) is an integrally formed structure. 5. The urinary catheter introduction device according to claim 1, characterized in that, the opening size of the longitudinal through opening (11) accounts for 1/4-1/3 of the circumference of the entire hard hollow tube (1) . 6. The urinary catheter introduction device according to claim 1, characterized in that, the opening size of the longitudinal through opening (11) accounts for 1/3 of the circumference of the entire hard hollow tube (1). 7. The catheter introducing device according to claim 1, characterized in that, the diameter of the hard hollow tube (1) is slightly larger than the outer diameter of the silicone catheter (2). 8. The urinary catheter introduction device according to any one of claims 1-7, characterized in that, the hard hollow tube (1) is made of medical stainless steel. 9. The urinary catheter introduction device according to any one of claims 1-7, characterized in that the catheter introduction device is provided with different diameter models. 10. The urinary catheter introduction device according to any one of claims 1-7, characterized in that the catheter introduction device is provided with relevant models of F12, F14, F16, F18, and F20.