CN213609292U

CN213609292U - Male three-cavity catheter with inner core and curved front end

Info

Publication number: CN213609292U
Application number: CN202021635874.1U
Authority: CN
Inventors: 王洪福; 滕瑞红
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-07-06
Anticipated expiration: 2030-08-10

Abstract

A male three-cavity catheter with an inner core and a front end bent in radian comprises a drainage cavity, an air bag cavity and a flushing cavity, wherein the inner core with the same length as the drainage cavity is inserted into the drainage cavity, the front end of the inner core is an arc section, the rear part of the inner core is a linear section, the tail end of the inner core is provided with a stop disc with an integrated structure, the stop disc is in a circular plate shape, is coaxial with the inner core, is attached to the end surface of the catheter and has an outer contour exceeding the; a flat-block-shaped handle is arranged at the rear end of the blocking disc, when the flat block is horizontally placed, the upper surface and the lower surface of the handle are wide surfaces, the surfaces at two sides are narrow surfaces, and the bending direction of the inner core is the same as the direction of one wide surface of the handle; the front end of the catheter is a bending section along with the shape inner core, the front end of the bending section of the catheter is provided with a taper guide section which is gradually reduced towards the front end, the foremost end of the taper guide section is a spherical top, and the spherical top is in smooth transition connection with the front end of the taper guide section. The rear end of the catheter is pushed by the blocking disc to move forwards, the inner core cannot penetrate out of the front end of the catheter, the handle distinguishes the bending direction of the catheter, and the operation is accurate and safe.

Description

Male three-cavity catheter with inner core and curved front end

Technical Field

The utility model relates to a medical urethral catheterization device belongs to the medical instrument field, specifically is to provide a take three chamber catheters of male sex of inner core front end radian bending, especially the ureter of thickness more than F16.

Background

Most of the existing ureters are coreless ureters, particularly the ureters with the thickness of more than F16, only the ureters with the thickness less than or equal to F10 have inner cores to strengthen the hardness of the ureters and facilitate the insertion of thinner ureters into bladder, while the ureters with the thickness more than F12 generally do not have inner cores, while male urethra has two physiological bends, and the subperioneal bend cannot be changed through operation. This bending is a difficulty in the catheterization procedure for male patients if the urinary catheter is too stiff. Will penetrate into the urethra at this bend to create a false passage; if the catheter is too soft, it will bend at this bend, resulting in failure of the catheterization. The posterior urethral resistance of patients with prostatic hyperplasia or posterior urethral stricture is significantly increased, and the curved ureter cannot form a strong support, resulting in the ureter not being able to be inserted into the bladder. The front end of the urinary catheter with the inner core is curved in radian due to the fact that the inner core is arranged at the front end of the urinary catheter, the curved radian is completely matched with the inferior pubic curvature, the inner core enables the shape of the urinary catheter to be identical to that of the urethra and provides powerful support, and meanwhile the problem that resistance is caused to the urethra due to physiological curvature of the urethra is solved.

Although the problem of inserting of catheter has been solved to the inner core, because the catheter inserts the urethra after, the operator can't differentiate the crooked direction of radian of inner core, can cause and can not agree with completely with the bending under the pubic bone, inserts the difficulty. Even if the direction is wrong, the urethra is damaged to form a false passage, and iatrogenic damage is caused. On the other hand, because the inner core is different with the catheter material, the inner core is thin and hard, during daily use, the catheter produces easily and can take place relative movement with the inner core after warping, the operator when inserting the catheter, in order to offset the resistance of inserting the in-process, it is too big to appear operating the inner core hard sometimes, cause the inner core to wear out from the catheter front end department, insert patient's urethra, cause secondary injury for the patient, be present major drawback, so, need to solve urgently.

SUMMERY OF THE UTILITY MODEL

The utility model provides a take three chamber catheters of male sex of inner core front end radian bending, its aim at solve the crooked direction of radian that the operator can't differentiate the inner core, and catheterization operation causes the technical problem that the inner core was worn out from the catheter. And the technical problems that the supporting force of the ureter is contradictory to the accidental injury of the ureter and the ureter can be separated after the inner core is pulled out are solved.

The utility model adopts the following technical proposal,

a male three-cavity catheter with an inner core and a curved front end in radian comprises a drainage cavity, an air bag cavity and a flushing cavity, wherein the inner core is inserted into the drainage cavity, the inner core is as long as the drainage cavity, the front end of the inner core is provided with an arc-shaped section in radian, the rear part of the inner core is a linear section, the tail end of the rear part of the inner core is provided with a stop disc which is of an integrated structure and is perpendicular to the inner core, the stop disc is in a circular plate shape and is coaxially arranged with the linear section of the rear part of the inner core, the stop disc is attached to the end face of the catheter, and the outer contour; the rear end of the blocking disc is provided with a handle in a flat block shape, when the flat block of the handle is horizontally placed, the upper surface and the lower surface of the handle are wide surfaces, the surfaces at two sides of the handle are narrow surfaces, and the bending direction of the inner core is the same as the direction of one wide surface of the handle; the front end of the catheter follows the shape, the inner core is a bending section, the front end of the bending section of the catheter is provided with a taper guide section which is gradually reduced towards the front end, the foremost end of the taper guide section is a spherical top, and the spherical top is in smooth transition connection with the front end of the taper guide section.

The front end of the drainage cavity is positioned in the center of the spherical top.

And a through drainage urine opening is formed in the pipe wall of the bent section at the front end of the drainage cavity.

And a gap of 0,5-2mm is reserved between the drainage cavity and the inner core.

The wide surface of the handle is a holding and pinching surface when an operator uses the handle, the two surfaces of the wide surface of the handle are marked with marks, the bending direction of the inner core and the direction of one wide surface of the handle are the same, the wide surface is marked with the front mark, and the back surface is marked with the back mark.

The catheter is made of medical silica gel materials, and the inner core is made of medical plastics.

The catheter is a catheter with the thickness of more than F16.

Effects of the invention

The utility model discloses block the dish and promote the catheter to insert, constitute integrative removal structure when making inner core and catheter insert, the inner core is the support skeleton of catheter, and the inner core front end does not produce the too big thrust to the catheter head end, and the catheter rear end receives the thrust antedisplacement of blocking the dish, and the inner core can not wear out from the catheter front end, has guaranteed patient's safety in utilization; the handle keeps a fixed angle with the bending radian of the front end of the inner core, so that an operator can always make the bending direction of the urethral canal clear, the urethral canal and the bending radian of the urethral canal can be completely matched, and the catheter can be smoothly and accurately placed into the bladder. The operation is accurate and safe.

Drawings

Figure 1 is a schematic structural diagram of the present invention,

figure 2 is a schematic top view of the present invention,

figure 3 is a schematic bottom view of the present invention,

fig. 4 is a right-side schematic view of the present invention;

description of the figure numbering:

a catheter 1, an inner core 2, an air sac cavity 3, an irrigation cavity 4, a drainage urine opening 11, a spherical top 12, a drainage cavity 13, a blocking disc 21, a handle 22,

Detailed Description

Referring to fig. 1-4, the utility model relates to a three-cavity male catheter with an inner core and a curved front end, wherein the catheter 1 comprises a drainage cavity 13, an air sac cavity 3 and a flushing cavity 4, an inner core 2 is inserted into the drainage cavity 13, the inner core is as long as the drainage cavity, the front end of the inner core has an arc section with a radian, and the rear part of the inner core is a linear section, the tail end of the rear part of the inner core is provided with a stop disc 21 which is of an integrated structure and is perpendicular to the inner core, the stop disc is in a circular plate shape and is coaxially arranged with the linear section of the rear part of the inner core, the stop disc is attached to the end surface of the catheter 1, and the outline; a flat-block-shaped handle 22 is arranged at the rear end of the blocking disc, when the flat block of the handle is horizontally placed, the upper surface and the lower surface of the handle are wide surfaces, the surfaces at two sides are narrow surfaces, and the bending direction of the inner core is the same as the direction of one wide surface of the handle as shown in figure 4; the front end of the catheter follows the shape, the inner core is a bending section, the front end of the bending section of the catheter is provided with a taper guide section which is gradually reduced towards the front end, the foremost end of the taper guide section is a spherical top 12, and the spherical top 12 is in smooth transition connection with the front end of the taper guide section.

Preferably, the front end of the drainage cavity is positioned at the center of the spherical top. The spherical top is thicker in wall thickness, soft and comfortable, the top of the inner core cannot be hard, and the smooth streamline shape is favorable for guiding the inner core shown in figure 1.

The pipe wall of the bent section at the front end of the drainage cavity is provided with 2 through drainage urine orifices 11 which can be symmetrically arranged.

A gap of 0.5-2mm is reserved between the drainage cavity 13 and the inner core 2.

The wide surface of the handle is a holding and pinching surface when an operator uses the handle, the two surfaces of the wide surface of the handle are marked with marks, the bending direction of the inner core and the direction of one wide surface of the handle are the same, the wide surface is marked with the front mark, and the back surface is marked with the back mark. As shown in fig. 2-4.

The catheter is made of medical silica gel materials, and the inner core is made of medical plastics. The user can know by pinching the handle with the hand, and the surface marked with the front part of the handle is also the bending direction of the catheter, namely the surface is bent towards the same direction; even when the front end of the catheter is inserted into the urethra, the bending direction can be distinguished through the handle, the bending radian of the urethra can be accurately aligned, and the front end of the catheter can be completely matched.

Preferably, the catheter is a catheter with the thickness of F16 or more.

The utility model adopts the medical silica gel urinary catheter with softer head, the front end of the urinary catheter is slightly conical to reduce the urethral catheterization resistance, the urinary catheter is internally provided with the inner core which is made of medical plastic material or elastic medical resin material or medical metal material or is selected according to the inner core material in the prior art, the inner core has hardness and elasticity, the front end of the inner core is curved in an arc shape, the inner core and the urinary catheter are the same length, the back of the inner core is provided with the annular blocking disc which is slightly thicker than the rear end of the urinary catheter, thus the head end of the inner core is propped in the blind end of the front end to form the supporting and guiding direction of the head, the blocking disc of the tail forms strong tail supporting and deformation preventing when the urinary catheter meets the resistance, an integral structure synchronous movement is formed when the inner core and the urinary catheter move forwards, the resistance can be helped to overcome, the thrusting force of the head end of the inner core to the head end of the urinary catheter is reduced, thereby damaging the urethra. The sterile lubricant is coated between the inner core and the ureter, so that the inner core can be smoothly and freely pulled out from the drainage cavity after the head of the ureter enters the bladder, the head of the ureter is spherical, so that the ureter cannot be bent, the thickness of the ureter is elastic and softer, the smooth and streamlined guide is good, a patient cannot feel the hardness of the inner core, so that the ureter is more comfortable, and the male ureter with the bent front end of the inner core can reduce the difficulty in catheterization operation, and is safe and comfortable.

Claims

1. The male three-cavity catheter with the inner core and the curved front end of the inner core comprises a drainage cavity, an air bag cavity and a flushing cavity and is characterized in that the inner core (2) is inserted into the drainage cavity (13), the inner core is as long as the drainage cavity, the front end of the inner core is provided with a curved section with a curved arc shape, the rear part of the inner core is a linear section, the tail end of the rear part of the inner core is provided with a stop disc (21) which is of an integrated structure and is perpendicular to the inner core, the stop disc is in a circular plate shape and is coaxially arranged with the linear section at the rear part of the inner core, the stop disc is attached to the end surface of the catheter (1), and the outer contour; a flat-block-shaped handle (22) is arranged at the rear end of the blocking disc, when the flat block of the handle is horizontally placed, the upper surface and the lower surface of the handle are wide surfaces, the surfaces at two sides of the handle are narrow surfaces, and the bending direction of the inner core is the same as the direction of one wide surface of the handle; the front end of the catheter follows the shape, the inner core is a bending section, the front end of the bending section of the catheter is provided with a taper guide section which is gradually reduced towards the front end, the foremost end of the taper guide section is a spherical top (12), and the spherical top (12) is in smooth transition connection with the front end of the taper guide section.

2. The male three-lumen catheter with the inner core and the curved front end according to claim 1, wherein the front end of the drainage lumen is located at the center of the spherical top.

3. The male three-cavity catheter with the inner core and the radian-bent front end according to claim 1, wherein a through urine drainage port (11) is arranged on the wall of the bent section of the front end of the drainage cavity.

4. The male three-cavity catheter with the inner core and the radian-bent front end as claimed in claim 1, wherein a gap of 0,5-2mm is left between the drainage cavity (13) and the inner core (2).

5. The male three-cavity catheter with the inner core and the radian-bent front end as claimed in claim 1, wherein the wide surface of the handle is a pinching surface when an operator uses the catheter, marks are marked on both sides of the wide surface of the handle, the wide surface of the inner core, which is bent in the same direction as the wide surface of the handle, is marked as "front" and the back surface of the inner core is marked as "back".

6. The male three-cavity catheter with the radian-bending inner core front end according to claim 1, wherein the catheter is made of medical silica gel, and the inner core is made of medical plastic.

7. The male three-cavity catheter with the inner core and the arc-bent front end according to claim 1, wherein the catheter is a catheter with the thickness of more than F16.