CN219983563U - Catheter assembly of combined catheter - Google Patents

Abstract

The utility model relates to the technical field of combined catheters, and discloses a catheter assembly of a combined catheter, which comprises a water injection pipe, wherein the water injection pipe comprises an outer pipe wall and an inner pipe wall, a catheter body is arranged in the inner pipe wall in a penetrating manner, a catheter head is arranged at the output end of the catheter body, and liquid inlet holes communicated with the inner part of the catheter body are uniformly formed in the outer side of the catheter head; according to the utility model, the split combined structure is adopted, so that the catheter body penetrates through the inner tube wall, the catheter body can be drawn in the inner tube wall, the outer tube wall and the inner tube wall are limited by the expansion of the air bag, the drawing catheter body drives the annular groove to be mutually clamped with the elastic convex ring by the expansion of the elastic convex ring, the catheter body is contracted into the inner tube wall and limited, and the problem that the bladder is damaged due to the fact that the catheter head stays in the bladder of a patient for a long time to rub the bladder wall is avoided.

Description

Catheter assembly of combined catheter

Technical Field

The utility model relates to the technical field of combined catheters, in particular to a catheter assembly of a combined catheter.

Background

The catheter mainly comprises three specifications of a single cavity, a double cavity and a three cavity, the ratio of the double cavity catheter is relatively higher in the existing medical process, the main structure of the catheter consists of a pipe body, a pipe head and a liquid outlet port, a liquid injection pipe is arranged on one side of the liquid outlet port, a double cavity pipe is formed, a flushing medicine injection port is arranged on the other side of the liquid outlet port, and a three cavity pipe is formed.

When the tube head of the existing catheter is introduced into the bladder of a patient, the urine of the patient is introduced into the bladder through the through hole formed in the tube head, and then drained out of the patient, but in the structure, the tube head can always rub the inner wall of the bladder of the patient, the phenomenon of damage or inflammation of the inner wall of the bladder of the patient is easily caused by long-time friction, and then the pain of the patient is increased, so that the combined catheter structure with a novel structure is needed.

Disclosure of Invention

The utility model aims to provide a catheter assembly of a combined catheter, which aims to solve the problem that the inner wall of a patient's bladder is worn due to the fact that a tube head in the conventional catheter structure stays in the patient's bladder for a long time in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a catheter subassembly of combination formula catheter, includes the water injection pipe, the water injection pipe includes outer pipe wall and interior pipe wall, the inside of interior pipe wall runs through and is provided with the catheter shaft, the output of catheter shaft is provided with the catheter head, the outside of catheter head evenly is provided with the feed liquor through-hole that communicates mutually with the catheter shaft is inside, the one end that the catheter shaft outside is close to the catheter head is provided with annular groove, the one end that the interior pipe wall inboard is close to the catheter head is provided with the elasticity bulge loop that mutually adapts with annular groove.

Preferably, the one end that outer pipe wall and interior pipe wall are close to the urine head is provided with the gasbag of intercommunication jointly, the other end of outer pipe wall and interior pipe wall is provided with sealed baffle ring, the outside that the catheter body is close to sealed baffle ring is provided with the spacing ring, and spacing ring and sealed baffle ring laminating each other, the one end that the outer pipe wall outside is close to sealed baffle ring is provided with the water injection branch pipe that is mutually communicated with the outer pipe wall inside, through being provided with sealed baffle ring and spacing ring laminating for the catheter body can move outer pipe wall and interior pipe wall and follow the internal body that gets into the patient through spacing ring when leading into the patient.

Preferably, the elastic convex ring and the air bag are made of elastic latex materials, the outer pipe wall, the water injection branch pipe, the air bag and the inner pipe wall are made of an integrated forming process, the catheter body and the inner pipe wall are assembled by combining, and the tightness of the structure among the outer pipe wall, the water injection branch pipe, the air bag and the inner pipe wall is ensured by adopting the integrated forming process, so that the phenomenon of liquid leakage is prevented.

Preferably, the input end of the water injection branch pipe is provided with a water injection control valve, and control of normal saline injected into the inner cavity of the outer pipe wall and the inner pipe wall is realized through the water injection control valve, so that normal saline backflow is prevented.

Compared with the prior art, the utility model has the beneficial effects that: a catheter assembly of the combination catheter;

through adopting the structure of components of a whole that can function independently combination formula for the catheter shaft runs through the interior pipe wall, thereby make the inside of catheter shaft can draw out in the interior pipe wall, when introducing the inside of patient's bladder with the one end of catheter head, pour into the inside of cavity that outer pipe wall and interior pipe wall formed jointly with normal saline through the water injection branch pipe, thereby make gasbag and elasticity bulge loop inflation, thereby carry out spacingly to outer pipe wall and interior pipe wall through the inflation of gasbag, make drawing out the catheter shaft and drive annular groove and elasticity bulge loop mutually block through the inflation of elasticity bulge loop, make the inside of catheter shaft shrink to interior pipe wall and carry out spacingly, thereby avoid the catheter head to detain for a long time in patient's bladder and produce the problem emergence of friction and lead to the bladder damage to the bladder wall.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is an enlarged cross-sectional view of the stop collar of the present utility model;

figure 3 is an enlarged cross-sectional view of the structure of the urine tube head according to the utility model;

FIG. 4 is a cross-sectional view showing the structure of the elastic convex ring and the annular groove in a separated state in the utility model;

fig. 5 is a cross-sectional view showing a snap-fit state of the elastic convex ring and the annular groove in the present utility model.

In the figure: 1. an outer tube wall; 2. a limiting ring; 3. a water injection branch pipe; 4. an air bag; 5. a urine tube head; 6. a liquid inlet through hole; 7. a catheter body; 8. an inner tube wall; 9. an elastic convex ring; 10. an annular groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, embodiments of the present utility model are provided: the utility model provides a catheter subassembly of combination catheter, including the water injection pipe, the water injection pipe includes outer pipe wall 1 and inner tube wall 8, the inside of inner tube wall 8 runs through and is provided with catheter shaft 7, the output of catheter shaft 7 is provided with catheter head 5, the outside of catheter head 5 evenly is provided with the feed liquor through-hole 6 that communicates mutually with catheter shaft 7 inside, guide the inside of catheter shaft 7 with the urine in the patient's bladder through feed liquor through-hole 6, the one end that catheter shaft 7 outside is close to catheter head 5 is provided with annular groove 10, the one end that inner tube wall 8 inboard is close to catheter head 5 is provided with the elasticity bulge loop 9 with annular groove 10 mutually adaptation, through being provided with elasticity bulge loop 9 and annular groove 10, thereby under the inside normal saline's of injection of outer pipe wall 1 and inner tube wall 8, make elasticity bulge loop 9 and annular groove 10 carry out the block spacing, make catheter shaft 7 and inner tube wall 8 location, simultaneously through the effect of elasticity bulge loop 9 and annular groove 10, prevent that urine from flowing through the inside of inner tube wall 8.

The one end that outer pipe wall 1 and inner tube wall 8 are close to urine head 5 is provided with gasbag 4 that communicates mutually jointly, the other end of outer pipe wall 1 and inner tube wall 8 is provided with sealed baffle ring, the outside that catheter shaft 7 is close to sealed baffle ring is provided with spacing ring 2, and spacing ring 2 and sealed baffle ring laminating each other, the one end that outer pipe wall 1 outside is close to sealed baffle ring is provided with the water injection branch pipe 3 that communicates mutually with the inside of outer pipe wall 1, the input of water injection branch pipe 3 is provided with the water injection control valve, control to the inside cavity normal saline of injection outer pipe wall 1 and inner tube wall 8 has been realized through being provided with the water injection control valve, prevent the normal saline backward flow, laminating through being provided with sealed baffle ring and spacing ring 2, make catheter shaft 7 when leading into the patient, can drive outer pipe wall 1 and inner tube wall 8 through spacing ring 2 and follow the internal that gets into the patient.

The elastic convex ring 9 and the air bag 4 are made of elastic latex materials, the outer pipe wall 1, the water injection branch pipe 3, the air bag 4 and the inner pipe wall 8 are made of an integrated forming process, the catheter body 7 and the inner pipe wall 8 are assembled in a combined mode, and the tightness of the structure among the outer pipe wall 1, the water injection branch pipe 3, the air bag 4 and the inner pipe wall 8 is guaranteed through the integrated forming process, so that the phenomenon of liquid leakage is prevented.

The water injection branch pipe 3 in the device is in the prior art, and the composition structure and the connection mode are completely the same as those of the prior device.

Working principle: this catheter subassembly is when using, one end with the catheter head 5 is guided to in the patient's the bladder, in the in-process of guide, thereby be provided with spacing ring 2 by the output of catheter shaft 7, through spacing ring 2 and the sealed baffle ring between outer pipe wall 1 and the inner tube wall 8 laminating, thereby make catheter head 5 when the guide gets into in the patient's body, can drive outer pipe wall 1 and inner tube wall 8 synchronous entering, after catheter head 5 introduces patient's bladder, this moment, inject normal saline into in the cavity that outside pipe wall 1 and inner tube wall 8 formed through water injection branch pipe 3, through normal saline's effect, thereby make balloon 4 and elasticity bulge loop 9 expand, thereby can make outer pipe wall 1 and inner tube wall 8 be detained in patient's bladder through the inflation of balloon 4, and the inner wall of elasticity bulge loop 9 is laminated with the outer wall of catheter shaft 7 each other this moment, make elasticity bulge loop 9 receive the stop of catheter shaft 7 outer wall and can's expansion, at this moment, drive the inside shrink of catheter shaft 5 to inner pipe wall 8 through pulling catheter shaft 7, make annular groove 10 follow the inside shrink of catheter shaft 8, after that catheter head 5 introduces patient's bladder into the position through the water injection bulge loop 3 outside pipe wall 1 and inner pipe wall 8, thereby the inner pipe wall 7 is passed through the expansion of the inner pipe wall 7 and the inner pipe wall 7 is passed through the inner pipe wall 7 of pipe wall 7 and the inner pipe wall of pipe wall 7 is formed into the inner pipe wall 7, thereby the inner pipe wall is passed through the inner pipe wall 7 is reached to the inner pipe wall of the inner pipe wall 7 is reached to the inner pipe wall 7 is reached, the inner pipe wall is reached is prevented to the inner pipe is more rapidly is more difficult to the inner pipe side is difficult to the inner pipe is reached, the inner pipe is difficult to the inner pipe is made to be the inner pipe is to the inner side.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (4)

1. A catheter assembly for a combination urinary catheter, comprising a water injection tube, characterized in that: the water injection pipe comprises an outer pipe wall (1) and an inner pipe wall (8), wherein the inner part of the inner pipe wall (8) is penetrated and provided with a catheter body (7), the output end of the catheter body (7) is provided with a catheter head (5), the outer side of the catheter head (5) is uniformly provided with a liquid inlet through hole (6) which is mutually communicated with the inner part of the catheter body (7), one end, close to the catheter head (5), of the outer side of the catheter body (7) is provided with an annular groove (10), and one end, close to the catheter head (5), of the inner side of the inner pipe wall (8) is provided with an elastic convex ring (9) which is mutually matched with the annular groove (10).

2. A catheter assembly for a combination catheter according to claim 1, wherein: the catheter is characterized in that the air bags (4) which are mutually communicated are commonly arranged at one ends of the outer tube wall (1) and the inner tube wall (8) close to the urine head (5), sealing baffle rings are arranged at the other ends of the outer tube wall (1) and the inner tube wall (8), limiting rings (2) are arranged at the outer sides of the catheter body (7) close to the sealing baffle rings, the limiting rings (2) are mutually attached to the sealing baffle rings, and water injection branch pipes (3) which are mutually communicated with the inner parts of the outer tube wall (1) are arranged at one ends of the outer tube wall (1) close to the sealing baffle rings.

3. A catheter assembly for a combination catheter according to claim 2, wherein: the catheter body (7) and the inner tube wall (8) are assembled by combining and assembling.

4. A catheter assembly for a combination catheter according to claim 2, wherein: the input end of the water injection branch pipe (3) is provided with a water injection control valve.