CN212651215U - Urethral stricture dilation drainage tube - Google Patents
Urethral stricture dilation drainage tube Download PDFInfo
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- CN212651215U CN212651215U CN202020349917.3U CN202020349917U CN212651215U CN 212651215 U CN212651215 U CN 212651215U CN 202020349917 U CN202020349917 U CN 202020349917U CN 212651215 U CN212651215 U CN 212651215U
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Abstract
An urethral stricture dilation drainage tube belongs to the technical field of medical appliance manufacture. Comprises a urethra expansion drainage tube, a supporting tube and a guide wire. The urethra dilating tube consists of a head part, a body part and a tail part, wherein the head part is a single pig tail tube, a channel is arranged in the head part, a side hole is arranged on the tube wall, the front end of the head part is tapered, a fixed traction wire is arranged on the outer wall, a traction wire channel hole is arranged at the tail part of the single pig tail tube, and the traction wire enters the channel through the hole; the body part is a double-pass tube, and a cylindrical air bag is arranged on the tube wall and fixed on the tube wall; the tail end of the tail part is provided with a urine bag connector, a traction line buckle and a water injection connector; the supporting tube is a single-channel tube, the head end is a metal tube, and a screw cap at the tail part is screwed on a tail part joint of the urethral dilatation drainage tube; the guide wire body part is rigid, and the head end is made of soft materials. The utility model discloses the beneficial effect who reaches is, easy operation, easily through narrow, can not arouse the secondary damage of urethra.
Description
Technical Field
The utility model belongs to the technical field of medical instrument makes, a urethral stricture expansion drainage tube is related to.
Background
The urinary catheter is a common clinical medical instrument, is placed into the bladder through the external orifice of the urethra to drain urine to the outside of the body, has the main functions of accurately recording urine volume, facilitating drainage, flushing and the like, and plays an important role in clinic.
The catheter applied at present is mainly made of silica gel, rubber, EVA, PVC and the like, and the catheter body is softer. For patients with symptoms such as urethral stricture, prostatic hyperplasia, prostatitis, prostate tumor, and urethral injury, the internal diameter, the running and the bending degree of the urethra change. The conventional urethral catheterization in-process resistance is great, needs to use great strength, and violence intubate not only brings huge misery for the patient, causes secondary urethra damage even easily, such as false way, hemorrhage, perforation etc. and then has aggravated the severity of urethra disease, has influenced the healing of urethra, leads to the urethra damage and the stenosis of complexity even, has seriously influenced patient's quality of life. For the patients outlined above, in order to increase the success rate of indwelling catheters and reduce the incidence of complications, a drainage catheter may be placed under the guidance of a guidewire. The prior catheter mostly adopts a tube body with a closed front end and an open back end, wherein a side opening is communicated with a catheter cavity, when the guide wire is put in, the guide wire is led out from the side opening of the catheter through the tube cavity, and the head end of the urinary catheter is not parallel to the guide wire, thus leading to difficult guide and failure of indwelling urinary catheter.
Even if the catheter can be placed into a small-sized urinary catheter, the drainage effect is poor, and the urinary retention is easy to occur again after the catheter is pulled out. In order to keep the spontaneous urination smooth, urethral dilation is often required for the above-mentioned patients. The conventional method adopted at present is to expand the urethra by a metal urethra dilator, multiple urethra dilations from small size to large size are mostly adopted, and then a thick ureter is inserted for supporting for a long time so as to promote the healing of injured mucous membrane.
Disclosure of Invention
The utility model aims at providing a urethral stricture dilation drainage tube which is simple in operation, easy to pass through stricture and can not cause secondary injury to the urethra.
The utility model comprises a urethra dilatation drainage tube 1, a supporting tube 2 and a guide wire 3;
the urethra dilatation drainage tube 1 consists of a head part 4, a body part 5 and a tail part 6; wherein the content of the first and second substances,
the head part 4 is a single pig tail pipe, a channel I7 is arranged in the head part, a side hole 8 is arranged on the pipe wall, the front end of the head part 4 is tapered, and a fixed traction wire 9 arranged on the outer wall enters the channel I7 through a traction wire channel hole arranged at the tail part of the single pig tail pipe;
the body part 5 is a bi-pass tube, a channel II 10 and a channel III 11 are arranged in the bi-pass tube, the channel II 10 is communicated with a channel I7, an air bag 12 is arranged on the tube wall, the air bag 12 is fixed on the tube wall, and the channel III 11 is communicated with the air bag 12;
the tail part 6 is provided with a channel IV 13 and a channel V14, wherein the channel IV 13 is communicated with a channel II 10 of the body part 5, the tail end of the tail part 6 is provided with a pull wire buckle 16 and a connector 15 with external threads, a pull wire 9 passes through a pull wire channel hole arranged on the tail part 6 and penetrates out of the outer wall and is clamped on the pull wire buckle 16, the channel V14 is communicated with a body part channel III 11, and the tail end of the tail part 6 is provided with a water injection connector 17 communicated with the channel V14;
the supporting tube 2 is a single-channel tube and is arranged in the drainage tube 1, the tail part of the supporting tube 2 is provided with a screw cap 18 with internal threads, and the screw cap 18 is screwed on the external threads of the connector 15 at the tail part 6 of the urethra dilatation drainage tube 1;
the length of the drainage tube 1 is 45cm, the tube diameter is 8-12Fr, and the length of a single pig tail is 6 cm;
the length of the support tube 2 is 45cm, the outer diameter is 6-10Fr, and the inner diameter is 5-9 Fr;
the length of the guide wire 3 is 100cm, and the diameter is 0.5-1 mm;
the balloon 12 is a cylindrical balloon.
The expansion circumference of the balloon 12 is 20-28 Fr;
the balloon 12 has an expanded circumference model of 20Fr, 22Fr, 24Fr, 26Fr and 28 Fr;
the air bag 12 is fixed on the tube wall by a metal ring;
the number of the side holes 8 is 2;
the head end of the supporting tube 2 is a metal tube;
the side wall of the top of the supporting tube 2 is provided with a resistance block 19;
the body part of the guide wire 3 is rigid, and the head end is made of soft material.
The utility model has the advantages that:
1. the device can be placed into the urethra under the guidance of the guide wire, the operation is simpler, and the secondary injury of the urethra can not be caused;
2. the hardness of the device is higher than that of a conventional ureter, the diameter of the device is thin, the head end of the device is conical, a supporting tube is arranged in the device, and the device is easy to pass through a narrow part;
3. the device is provided with the expansion saccule, can perform urethral expansion while draining urine, and is simple to operate;
4. the urethral dilator can perform urethral dilation step by step, gradually increases pressure to the maximum dilation diameter, has little pain, and can not cause the secondary stenosis caused by urethral mucosa tearing and scar repair.
Drawings
FIG. 1 is a schematic view of a drainage tube of the present invention,
figure 2 is a schematic view of the support tube of the present invention,
figure 3 is a schematic view of the assembled structure of the present invention,
figure 4 is a schematic structural diagram after the utility model is placed in a designated position,
figure 5 is a schematic structural view of the device for tensioning the traction wire,
figure 6 is a schematic structural view of the inflatable balloon of the device of the present invention,
the drainage tube comprises a drainage tube 1, a support tube 2, a guide wire 3, a head 4, a body 5, a tail 6, a channel I, a side hole 8, a traction wire 9, a channel II, a channel III, a balloon 12, a channel IV, a channel V, a channel 15, a connector 16, a traction wire buckle 17, a water injection connector 18, a screw cap 19, a resistance block A, a section A and a section B.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
The utility model comprises a urethra dilatation drainage tube 1, a supporting tube 2 and a guide wire 3;
the urethra dilatation drainage tube 1 consists of a head part 4, a body part 5 and a tail part 6; the length of the drainage tube 1 is 45cm, and the tube diameter is 8 Fr; wherein the content of the first and second substances,
the head part 4 is a single pig tail pipe, the length of the single pig tail pipe is 6cm, a channel I7 is arranged in the single pig tail pipe, 2 side holes 8 are formed in the pipe wall, the front end of the head part 4 is tapered, and a fixed traction wire 9 arranged on the outer wall enters the channel I7 through a traction wire channel hole formed in the tail part of the single pig tail pipe;
the body part 5 is a bi-pass tube, a channel II 10 and a channel III 11 are arranged in the bi-pass tube, the channel II 10 is communicated with a channel I7, a cylindrical air bag 12 is arranged on the tube wall, the air bag 12 is fixed on the tube wall through a metal ring, the channel III 11 is communicated with the air bag 12, and the expansion circumference of the air bag 12 is 22 Fr;
the tail part 6 is provided with a channel IV 13 and a channel V14, wherein the channel IV 13 is communicated with a channel II 10 of the body part 5, the tail end of the tail part 6 is provided with a pull wire buckle 16 and a connector 15 with external threads, a pull wire 9 passes through a pull wire channel hole arranged on the tail part 6 and penetrates out of the outer wall and is clamped on the pull wire buckle 16, the channel V14 is communicated with a body part channel III 11, and the tail end of the tail part 6 is provided with a water injection connector 17 communicated with the channel V14;
the supporting tube 2 is a single-channel tube, the length of the supporting tube 2 is 45cm, the outer diameter is 6Fr, the inner diameter is 5Fr, the head end is a metal tube, the side wall of the top of the supporting tube 2 is provided with a resistance block 19, the supporting tube 2 is arranged in the drainage tube 1, the tail part of the supporting tube 2 is provided with a screw cap 18 with internal threads, and the screw cap 18 is screwed on external threads of a connector 15 at the tail part 6 of the urethral dilatation drainage tube 1;
the body part of the guide wire 3 is rigid, the head end is made of soft materials, the length is 100cm, and the diameter is 0.9 mm.
The designated position of the stenosis to be dilated is between the A section and the B section.
During clinical operation, firstly, a guide wire 3 is placed into a bladder through an external urethral opening, a urethral dilating drainage tube 1 provided with a supporting tube 2 is placed into the bladder under the guidance of the guide wire 3, the guide wire 3 is withdrawn, the supporting tube 2 is withdrawn from a head 4 of the drainage tube 1, a traction wire 9 is tightened, the head end of the urethral dilating drainage tube forms a loop, the traction wire 9 is fixed through a traction wire buckle 16 and then withdrawn from the supporting tube 2, physiological saline containing contrast agent is injected through a water injection joint 17, an inflated air bag 12 dilates stenosis, and a drainage connector 15 is connected with a urine bag for draining urine.
Claims (7)
1. A urethral stricture dilation drainage tube comprises a urethral dilation drainage tube (1), and is characterized by also comprising a support tube (2) and a guide wire (3); the urethra dilatation drainage tube (1) consists of a head part (4), a body part (5) and a tail part (6); the head (4) is a single pig tail pipe, a channel I (7) is arranged in the head, a side hole (8) is formed in the pipe wall, the front end of the head (4) is tapered, and a fixed traction wire (9) arranged on the outer wall enters the channel I (7) through a traction wire channel hole formed in the tail of the single pig tail pipe; the body part (5) is a bi-pass pipe, a channel II (10) and a channel III (11) are arranged in the bi-pass pipe, the channel II (10) is communicated with the channel I (7), an air bag (12) is arranged on the pipe wall, the air bag (12) is fixed on the pipe wall, and the channel III (11) is communicated with the air bag (12); the tail part (6) is provided with a channel IV (13) and a channel V (14), wherein the channel IV (13) is communicated with a channel II (10) of the body part (5), the tail end of the tail part (6) is provided with a pull wire buckle (16) and a connector (15) with external threads, a pull wire (9) penetrates out of the outer wall through a pull wire channel hole arranged on the tail part (6) and is clamped on the pull wire buckle (16), the channel V (14) is communicated with the body part channel III (11), and the tail end of the tail part (6) is provided with a water injection connector (17) communicated with the channel V (14); the supporting tube (2) is a single-channel tube and is arranged in the drainage tube (1), the tail part of the supporting tube (2) is provided with a screw cap (18) with internal threads, and the screw cap (18) is screwed on the connector (15) of the tail part (6) of the urethral dilatation drainage tube.
2. The urethral stricture dilation drain according to claim 1, wherein the drain (1) has a length of 45cm and a tube diameter of 8-12Fr, and wherein a single pig's tail tube is 6cm long.
3. The urethral stricture dilation drain according to claim 1, wherein the support tube (2) has a length of 45cm, an outer diameter of 6-10Fr and an inner diameter of 5-9 Fr.
4. The urethral stricture dilation drain according to claim 1, characterized in that the guide wire (3) has a length of 100cm and a diameter of 0.5-1 mm.
5. The urethral stricture dilation drain according to claim 1, characterized in that the balloon (12) is a cylindrical balloon.
6. The urethral stricture dilation drain according to claim 1 or 5, characterized in that the dilation circumference of the balloon (12) is 20-28 Fr.
7. Urethral stricture dilatation drain according to claim 1 characterized in that the number of side holes (8) is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020349917.3U CN212651215U (en) | 2020-03-19 | 2020-03-19 | Urethral stricture dilation drainage tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020349917.3U CN212651215U (en) | 2020-03-19 | 2020-03-19 | Urethral stricture dilation drainage tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212651215U true CN212651215U (en) | 2021-03-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020349917.3U Expired - Fee Related CN212651215U (en) | 2020-03-19 | 2020-03-19 | Urethral stricture dilation drainage tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212651215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114699634A (en) * | 2022-02-24 | 2022-07-05 | 复旦大学附属中山医院 | Double-cavity drainage tube and drainage assembly |
-
2020
- 2020-03-19 CN CN202020349917.3U patent/CN212651215U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114699634A (en) * | 2022-02-24 | 2022-07-05 | 复旦大学附属中山医院 | Double-cavity drainage tube and drainage assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210305 |