CN111467659A - A filter stent type urinary catheter - Google Patents

Abstract

The present invention is a strainer bracket type urinary catheter, comprising a drainage tube, the front end of the drainage tube is provided with a drainage hole, the tail end of the drainage tube is provided with a sealing connector, and the sealing connector is provided with a drainage tube pipe interface, the first accessory interface; the drainage tube below the drainage hole is provided with the filter screen bracket, the filter screen bracket includes an outer bracket and an inner bracket, and the inner bracket is slidably fixed in the outer bracket, The upper end on the inner bracket is provided with a first mesh, the middle part of the first mesh is provided with a pull rod, the lower end of the outer bracket is provided with a second mesh, and the middle part of the second mesh is provided with a support A sleeve, the lower end of the support sleeve is fixed on the first accessory interface of the sealing connector, the pull rod passes through the support sleeve to protrude from the first accessory interface and is connected with the sealing cover, the The sealing cover and the first accessory interface are mutually covered.

Description

A filter stent type urinary catheter

technical field

The invention relates to a urinary catheter, in particular to a filter support type urinary catheter.

Background technique

No matter the size of the traditional ordinary rubber catheter, there are only two through holes at the front end for urine drainage. For patients with long-term indwelling catheters, once there is particle precipitation or blockage of large tissue-like substances, the catheter can easily be blocked. The main way to solve the blockage is to replace the catheter. During this period, it will cause patient suffering, increase the risk of urinary tract infection, and increase the workload of medical care.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the defects existing in the prior art, and to provide a filter support type urinary catheter that prevents the drainage tube from being deformed and blocked.

The present invention is realized as follows: a strainer support type urinary catheter, comprising a drainage tube, the front end of the drainage tube is provided with a drainage hole, the rear end of the drainage tube is provided with a sealing connector, the sealing connector A drainage tube interface and a first accessory interface are arranged on the upper part; the drainage tube below the drainage hole is provided with the filter screen bracket, and the filter screen bracket includes an outer bracket and an inner bracket, and the inner bracket is slidably fixed on the Inside the outer bracket, the upper end of the inner bracket is provided with a first mesh sheet, the middle of the first mesh sheet is provided with a pull rod, the lower end of the outer bracket is provided with a second mesh sheet, and the second mesh sheet is provided at the lower end. The middle part is provided with a support sleeve, the lower end of the support sleeve is fixed on the first accessory interface of the sealing connector, the pull rod passes through the support sleeve and extends out of the first accessory interface and is connected with the sealing cover. connected, the sealing cover and the first accessory interface cover each other.

The outer support includes an upper support outer ring and a lower support outer ring, a plurality of first fixing rods are arranged between the upper support outer ring and the lower support outer ring, and the second mesh sheet is fixed on the lower support outer ring. Inside the ring, the upper end of the inner bracket is constrained between the upper support outer ring and the lower support outer ring.

The inner support includes an upper inner ring, a second fixing rod and a lower fixing piece, the first mesh is fixed in the upper inner ring, and the upper end of the second fixing rod is connected with the upper inner ring, so The lower end of the second fixing rod passes through the lower end of the outer support and forms a sliding connection with the lower end of the outer support, the lower end of the second fixing rod is connected with the lower fixing piece, and the lower fixing piece The lower end of the second fixing rod is restricted below the lower end of the outer bracket.

The lower fixing member can be any one of a fixing sheet, a fixing ring or a fixing block.

A balloon fixed on the drainage tube is arranged below the drainage hole, an inflation channel communicated with the inside of the balloon is arranged on the side wall of the drainage tube, and a second sealing connector is arranged on the sealing connector. An accessory interface, the second accessory connection port is connected with the inflation channel; an inflation air bag is arranged on the second accessory interface.

A one-way flap valve is arranged in the drainage pipe interface.

The support sleeve is a flexible metal sleeve, the pull rod is a flexible metal pull rod, and the filter screen support is a medical metal support.

The number of the drainage holes is 3-5.

The beneficial effects of the present invention are: the outer support and the support sleeve of the filter screen support are used to support the drainage tube, prevent the drainage tube from being deformed, and keep the drainage smooth; the inner support can be pulled by the pull rod to remove sediment in the drainage tube. The blockages such as large particle sediments or blood clots in the cavity pass through the movement of the inner stent and the cooperation between the first mesh and the second mesh, so that the blockage is squeezed and moved to make the blockage smaller and shattered, which is easy to prevent. It is discharged to the outside of the drainage tube, thereby maintaining smooth drainage in the lumen of the drainage tube; the support sleeve provides support, so that when the pulling rod is pulled, the outer bracket of the filter screen bracket is prevented from moving up and down. The front end of the drainage tube is provided with 3-5 drainage holes, which greatly reduces the blockage caused by the blocking of the through holes; the drainage tube interface is provided with a one-way flap valve to effectively prevent the backflow of urine , reduce the chance of urinary tract infection.

Description of drawings

Figure 1 is a schematic diagram of the internal structure of the present invention.

Figure 2 is a schematic view of the side structure of the filter screen support of the present invention.

3 is a schematic structural diagram of a filter screen support of the present invention.

FIG. 4 is a schematic diagram of the exploded structure of the filter screen support of the present invention.

5 is a schematic structural diagram of the inner support of the filter screen support of the present invention when it is pulled down.

Among them: 1. Drainage tube; 2. Drainage hole; 3. Sealing connector; 4. Drainage tube interface; 5. First accessory interface; 6. Second accessory interface; 7. Filter bracket; 8. Outer bracket; 9 10, the first mesh; 11, the pull rod; 12, the second mesh; 13, the support sleeve; 14, the sealing cover; 15, the upper support outer ring; 16, the lower support outer ring; 17, the first A fixed rod; 18, the upper inner ring; 19, the second fixed rod; 20, the lower fixing part; 21, the balloon; 22, the inflation channel; 23, the inflation air bag; .

Detailed ways

According to FIGS. 1 to 5 , a filter support type urinary catheter of the present invention includes a drainage tube 1 , and the front end of the drainage tube 1 is provided with 3-5 drainage holes 2 . The tail end of the drainage tube 1 is provided with a sealing connector 3, and the sealing connector 3 is provided with a drainage tube interface 4, a first accessory interface 5 and a second accessory interface 6; the drainage tube below the drainage hole 2 is provided 1 is provided with the filter holder 7 inside. The drainage pipe interface 4 is provided with a one-way flap valve 25 ; the drainage pipe interface 4 is used for connecting the urine collection bag 24 .

The filter screen bracket 7 includes an outer bracket 8 and an inner bracket 9, the inner bracket 9 is slidably fixed in the outer bracket 8, and the upper end of the inner bracket 9 is provided with a first mesh 10. The middle part of the mesh sheet 10 is provided with a pull rod 11, the lower end of the outer bracket 8 is provided with a second mesh sheet 12, the middle part of the second mesh sheet 12 is provided with a support sleeve 13, and the lower end of the support sleeve 13 is fixed On the first accessory interface 5 of the sealing connector 3, the pull rod 11 extends out of the first accessory interface 5 through the support sleeve 13 and is connected to the sealing cover 14, and the sealing cover 14 is connected to the The first accessory interfaces 5 are covered with each other. The support sleeve 13 is a flexible metal sleeve, the pull rod 11 is a flexible metal pull rod, and the filter support 7 is a medical metal support. The pull rod 11 forms sliding friction with the support sleeve 13 .

The outer bracket 8 includes an upper supporting outer ring 15 and a lower supporting outer ring 16 , and a plurality of first fixing rods 17 are arranged between the upper supporting outer ring 15 and the lower supporting outer ring 16 , and the first fixing rods 17 The number of preferably 3-8, the figure is 4. The second mesh sheet 12 is fixed in the lower support outer ring 16 , and the upper end of the inner bracket 9 is restricted between the upper support outer ring 15 and the lower support outer ring 16 .

The inner bracket 9 includes an upper inner ring 18, a second fixing rod 19 and a lower fixing member 20, the first mesh 10 is fixed in the upper inner ring 18, and the upper end of the second fixing rod 19 is connected to the upper inner ring 18. The upper inner ring 18 is connected, and the lower end of the second fixing rod 19 passes through the lower supporting outer ring 16 at the lower end of the outer bracket 8 and forms a sliding connection with the lower supporting outer ring 16 at the lower end of the outer bracket 8, so The lower end of the second fixing rod 19 is connected with the lower fixing member 20 , and the lower end of the second fixing rod 19 is restricted below the lower end of the outer bracket 8 by the lower fixing member 20 . The lower fixing member 20 may be any one of a fixing sheet, a fixing ring or a fixing block, preferably a fixing ring. The outer diameter of the upper inner ring 18 is smaller than the inner diameter of the upper supporting outer ring 15 .

A balloon 21 fixed on the drainage tube 1 is arranged below the drainage hole 2 , and an inflation channel 22 communicating with the inside of the balloon 21 is arranged on the side wall of the drainage tube 1 . The sealing connection A second accessory interface 6 is provided on the component 3 , and the second accessory connection port 6 is connected with the inflation channel 22 ; the second accessory interface 6 is provided with an inflatable air bag 23 .

The upper end of the first accessory interface 5 is located in the center of the sealing connector 3, the upper end of the drainage pipe interface 4 and the upper end of the second accessory interface 6 are located on one side or both sides of the first accessory interface 5; The centerlines of the first accessory interface 6 , the drainage tube interface 4 and the second accessory interface 6 are straight lines or curves.

When in use, open the sealing cover 14, pull the sealing cover 14 to drive the pull rod 11 to move downward, and pull the inner bracket 9 through the pull rod 11 to remove the large particles deposited in the lumen of the drainage tube 1. Or blockages such as blood clots, through the up and down movement of the inner support 9 and the cooperation between the first mesh 10 and the second mesh 12, the blockage is squeezed and moved to make the blockage smaller and broken, and it is easy to be discharged to the drainage tube. 1 outside, thereby maintaining smooth drainage in the lumen of the drainage tube 1; the support sleeve 13 provides support, so that when the pull rod 11 is pulled, the outer support 8 of the filter screen support 1 is prevented from moving up and down.

Claims (8)

1. The utility model provides a filter screen support type catheter, includes the drainage tube, the front end of drainage tube is equipped with drainage hole, its characterized in that: the tail end of the drainage tube is provided with a sealing connecting piece, and the sealing connecting piece is provided with a drainage tube interface and a first accessory interface; the filter screen support is arranged inside the drainage tube below the drainage hole and comprises an outer support and an inner support, the inner support is fixed in the outer support in a sliding mode, a first net piece is arranged at the upper end of the inner support, a pull rod is arranged in the middle of the first net piece, a second net piece is arranged at the lower end of the outer support, a support sleeve is arranged in the middle of the second net piece, the lower end of the support sleeve is fixed on a first accessory connector of the sealing connecting piece, the pull rod penetrates through the support sleeve and extends out of the first accessory connector and is connected with the sealing cover, and the sealing cover and the first accessory connector are mutually covered.

2. A screen-holder catheter according to claim 1, wherein: the outer support comprises an upper support outer ring and a lower support outer ring, a plurality of first fixing rods are arranged between the upper support outer ring and the lower support outer ring, the second net piece is fixed in the lower support outer ring, and the upper end of the inner support is limited between the upper support outer ring and the lower support outer ring.

3. A screen-holder catheter according to claim 1, wherein: the inner support comprises an upper inner ring, a second fixing rod and a lower fixing piece, the first net piece is fixed in the upper inner ring, the upper end of the second fixing rod is connected with the upper inner ring, the lower end of the second fixing rod penetrates through the lower end of the outer support and is in sliding connection with the lower end of the outer support, and the lower end of the second fixing rod is connected with the lower fixing piece and is limited below the lower end of the outer support through the lower fixing piece.

4. A screen-holder catheter according to claim 3, wherein: the lower fixing piece is selected from one of a fixing piece, a fixing ring or a fixing block.

5. A screen-holder catheter according to claim 1, wherein: a balloon fixed on the drainage tube is arranged below the drainage hole, an inflation channel communicated with the inside of the balloon is arranged on the side wall of the drainage tube, a second accessory connector is arranged on the sealing connecting piece, and the second accessory connector is connected with the inflation channel; and an inflatable air bag is arranged on the second accessory interface.

6. A screen-holder catheter according to claim 1, wherein: a one-way flap valve is arranged in the drainage tube connector.

7. A screen-holder catheter according to claim 1, wherein: the support sleeve is a flexible metal sleeve, the pull rod is a flexible metal pull rod, and the filter screen support is a medical metal support.

8. A screen-holder catheter according to claim 1, wherein: the number of the drainage holes is 3-5.

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