CN113476721A

CN113476721A - Percutaneous nephrostomy catheter

Info

Publication number: CN113476721A
Application number: CN202110760999.XA
Authority: CN
Inventors: 毛玉兰; 孙丽娜; 钟午健
Original assignee: Shenzhen Maipuqi Medical Technology Co ltd
Current assignee: Shenzhen Maipuqi Medical Technology Co ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-10-08

Abstract

The invention relates to the technical field of medical instruments and discloses a percutaneous nephrostomy catheter which comprises a catheter body, wherein the bottom of the catheter body is communicated with a fiber tubule; the invention enters a human body through the slender tube, the guide sheath is inserted into a wound on the outer side of the skin of a patient, the adhesion ring is adhered to the skin to extrude the skin adhesive ring to be adhered to the skin, sealing is carried out, the blood stopping pad stops bleeding and inhibits bacteria at the wound of the patient, a doctor holds the guide sheath by hand and operates through the tube body, so that the position fixation between the fistula openings is avoided, the injury to the fistula openings due to frequent friction is aggravated, the fistula seepage is aggravated, the infection is easy to occur at the fistula openings, and the cleaning effect is improved; after the contrast agent diluted by the physiological saline is injected into the liquid inlet pipe after entering the kidney of the human body through the slender pipe, the contrast agent is full and flows into the annular saccule through the liquid inlet cavity, the annular saccule swells, the wound surface is dragged and compressed, and the bleeding of a patient is reduced, so that the bleeding of the patient is reduced by inflating the saccule and dragging and compressing the wound surface, the time is saved for subsequent treatment, and the safety effect is improved.

Description

Percutaneous nephrostomy catheter

Technical Field

The invention relates to the technical field of medical instruments, in particular to a percutaneous nephrostomy catheter.

Background

Obstruction of the patient's urinary system for any reason can result in dilation of the upper urinary tract lumen and may result in impaired renal function or uremia. When the blockage cannot be removed by surgical methods, the drainage tube can be placed into a urine collecting system of kidney such as renal calyx or renal pelvis by using X-ray fluoroscopy, ultrasound or CT guidance through the skin by using a guide wire, and a drainage bag is connected to the outlet of the drainage tube, so the treatment of draining the urine out of the body is called percutaneous nephrostomy drainage.

As disclosed in the invention patent (201220308804.4) "(percutaneous nephrostomy stone removal device), in the specific use process, the kidney is brittle, has poor elasticity and poor self-contraction capability, so that the hemostasis is difficult, the renal hemorrhage is likely to occur after the operation, and when the amount of the hemorrhage is small, the hemostasis medicine can be adopted to stop the bleeding; when the bleeding amount reaches a certain value and blood clots are formed to block blood vessels, vascular embolization hemostasis or surgical hemostasis is required, if the treatment is not timely, a large amount of blood clots in the kidney can be caused, and the kidney cutting treatment is required when the bleeding part is not continuous; when the amount of bleeding exceeded human specified value, the patient can also appear shock phenomenon and direct death even, easily lead to nephrostomy tube roll-off, can't stanch, percutaneous nephrostomy guide sheath can't and the position between the fistula fixed simultaneously, the injury that frequent friction caused to the fistula, aggravation fistula sepage, the infection easily takes place at fistula, for this reason we propose percutaneous nephrostomy pipe, can avoid nephrostomy tube roll-off, and the position that has forced hemostasis and between extension tube and the fistula is fixed, reduce the injury that the friction caused to the fistula and solve this problem.

Disclosure of Invention

The invention aims to provide a percutaneous nephrostomy catheter which has the advantages of preventing the nephrostomy catheter from sliding out, pressing hemostasis, fixing the position between an expansion tube and a fistula and reducing the damage to the fistula due to friction, and solving the problems that the kidney is fragile, poor in elasticity and poor in self-contraction capacity and is difficult to stanch and renal hemorrhage is likely to occur after an operation in the specific use process, and when the bleeding amount is small, hemostasis medicines can be adopted for hemostasis; when the bleeding amount reaches a certain value and blood clots are formed to block blood vessels, vascular embolization hemostasis or surgical hemostasis is required, if the treatment is not timely, a large amount of blood clots in the kidney can be caused, and the kidney cutting treatment is required when the bleeding part is not continuous; when the amount of bleeding exceeded human specified value, the patient can also appear shock phenomenon and direct death even, easily leads to nephrostomy tube roll-off, can't stanch, percutaneous nephrostomy guide sheath simultaneously can't and the fistula between the rigidity, and the injury that frequent friction caused to the fistula aggravates the fistula sepage, the problem of infection easily takes place in the fistula.

In order to achieve the purpose, the invention provides the following technical scheme: percutaneous nephrostomy catheter, including the body, the bottom intercommunication of body has fine tubule, annular sacculus is all installed to the both sides of body, the feed liquor chamber has been seted up to the inside of body, and the bottom in feed liquor chamber is linked together with annular sacculus's inside, the upper end intercommunication in feed liquor chamber has the feed liquor pipe, the surperficial sliding connection of body has the guide sheath, the surperficial bolt-on of guide sheath has the laminating ring, skin adhesive ring is installed to the bottom of laminating ring, the bottom of laminating ring is provided with blood suppression pad, and the embedded surface at the guide sheath in the inside of blood suppression pad.

Preferably, the top of feed liquor pipe is installed sealed cushion, the body is polyurethane macromolecular material.

Preferably, a contrast ring is embedded in one end of the interior of the slender tube, which is far away from the tube body.

Preferably, the blood-suppressing pad contains an antibacterial hemostatic drug inside.

Preferably, an annular stop is integrally formed at the top of the guide sheath, the annular stop is a holding part, and a projection is integrally formed on the surface of the annular stop.

Preferably, the surfaces of the tube body and the fiber tubule are coated with hydrophilic coatings.

Compared with the prior art, the invention has the following beneficial effects:

the invention enters a human body through the slender tube, the guide sheath is inserted into a wound on the outer side of the skin of a patient, the adhesion ring is adhered to the skin to extrude the skin adhesive ring to be adhered to the skin, sealing is carried out, the blood stopping pad stops bleeding and inhibits bacteria at the wound of the patient, a doctor holds the guide sheath by hand and operates through the tube body, so that the position fixation between the fistula openings is avoided, the injury to the fistula openings due to frequent friction is aggravated, the fistula seepage is aggravated, the infection is easy to occur at the fistula openings, and the cleaning effect is improved;

after the contrast agent diluted by the physiological saline is injected into the liquid inlet pipe after entering the kidney of the human body through the slender pipe, the contrast agent is full and flows into the annular saccule through the liquid inlet cavity, the annular saccule swells, the wound surface is dragged and compressed, and the bleeding of a patient is reduced, so that the bleeding of the patient is reduced by inflating the saccule and dragging and compressing the wound surface, the time is saved for subsequent treatment, and the safety effect is improved.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a slim tube according to the present invention;

FIG. 3 is a schematic cross-sectional view of an introducer sheath of the present invention;

FIG. 4 is a schematic cross-sectional view of a tubular body according to the present invention;

fig. 5 is a perspective view of a partial structure of the present invention.

In the figure: 1. a pipe body; 2. a fine tube; 3. an annular balloon; 4. a liquid inlet cavity; 5. a liquid inlet pipe; 6. an introducer sheath; 7. fitting a ring; 8. a skin adhesive ring; 9. a blood suppression pad; 10. sealing the rubber gasket; 11. a contrast ring; 12. an annular stop block; 13. and (4) a bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the percutaneous nephrostomy catheter comprises a catheter body 1, wherein the bottom of the catheter body 1 is communicated with a fine tube 2, annular balloons 3 are respectively arranged on two sides of the catheter body 1, a liquid inlet cavity 4 is formed in the catheter body 1, the bottom of the liquid inlet cavity 4 is communicated with the inside of the annular balloon 3, the upper end of the liquid inlet cavity 4 is communicated with a liquid inlet pipe 5, a guide sheath 6 is connected to the surface of the catheter body 1 in a sliding manner, a bonding ring 7 is bolted to the surface of the guide sheath 6, a skin adhesive ring 8 is arranged at the bottom of the bonding ring 7, a blood inhibiting pad 9 is arranged at the bottom of the bonding ring 7, the inner part of the blood inhibiting pad 9 is embedded in the surface of the guide sheath 6, the guide sheath 6 is inserted into a wound on the outer side of the skin of a patient, the bonding ring 7 is bonded with the skin to extrude the skin adhesive ring 8 to be adhered to the skin for sealing, the blood inhibiting pad 9 is used for stopping bleeding and inhibiting bacteria at the wound of the patient, a doctor holds the guide sheath 6 by hand, the operation is carried out through the tube body 1, so that the phenomenon that the fistula is damaged due to the fact that the fistula is fixed in position and frequently rubbed, leakage of liquid at the fistula is aggravated, infection easily occurs at the fistula, and the cleaning effect is improved; after entering human kidney through fine pipe 2, to injecting the contrast medium in feed liquor pipe 5, the contrast medium flows into annular sacculus 3 in through feed liquor chamber 4, and annular sacculus 3 is bloated, pulls the oppression surface of a wound, reduces patient and bleeds to the accessible fills the sacculus, pulls the oppression surface of a wound, reduces patient and bleeds, gains the time for subsequent processing, has improved the safety effect.

Further, sealed cushion 10 is installed at the top of feed liquor pipe 5, and body 1 is polyurethane macromolecular material, through setting up sealed cushion 10 to prevent that the gas in feed liquor chamber 4 from running out, polyurethane macromolecular material has less compression deformability. Good heat insulation, sound insulation, shock resistance and gas defense performance.

Further, the inside one end of keeping away from body 1 of fine pipe 2 is embedded to have radiography ring 11, through setting up radiography ring 11, can be convenient for medical staff observes the operation, plays convenient to use's purpose.

Further, the inside of pressing down blood pad 9 contains antibiotic hemostatic medicine, and the inside through setting up pressing down blood pad 9 contains antibiotic hemostatic medicine, can reduce the wound bleeding, plays the purpose that reduces bacterial infection simultaneously.

Furthermore, the top of the guide sheath 6 is integrally processed with an annular stop block 12, the annular stop block 12 is a holding part, the surface of the annular stop block 12 is integrally processed with a convex block 13, the annular stop block 12 is arranged to facilitate the operation of medical staff, and the convex block 13 can enhance friction force and reduce slipping.

Furthermore, the surfaces of the tube body 1 and the fine tube 2 are coated with hydrophilic coatings, and the hydrophilic coatings are methyl vinyl ether anhydrous maleic acid copolymers and can effectively reduce damage to mucosal tissues by arranging the surfaces of the tube body 1 and the fine tube 2 to be coated with hydrophilic coatings.

The working principle is as follows:

the thin fiber tube 2 enters a human body, the guide sheath 6 is inserted into a wound on the outer side of the skin of a patient, the attaching ring 7 is attached to the skin to extrude the skin adhesive ring 8 to be adhered to the skin for sealing, the blood suppression pad 9 performs hemostasis and bacteriostasis on the wound of the patient, and a doctor holds the guide sheath 6 and operates through the tube body 1;

after the fiber tubule 2 enters the kidney of the human body, the contrast agent diluted by the physiological saline injected into the liquid inlet pipe 5 is full, the liquid flows into the annular saccule 3 through the liquid inlet cavity 4, the annular saccule 3 is bulged, the wound surface is drawn and pressed, and the bleeding of the patient is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Percutaneous nephrostomy pipe, including body (1), its characterized in that: the utility model discloses a blood vessel, including body (1), liquid inlet chamber (4), and the bottom of liquid inlet chamber (4) is linked together with the inside of annular sacculus (3), the upper end intercommunication in liquid inlet chamber (4) has feed liquor pipe (5), the sliding surface connection of body (1) has guide sheath (6), the surface bolt of guide sheath (6) has laminating ring (7), skin adhesive ring (8) are installed to the bottom of laminating ring (7), the bottom of laminating ring (7) is provided with blood suppression pad (9), and the inside embedded surface in guide sheath (6) of blood suppression pad (9).

2. The percutaneous nephrostomy catheter of claim 1, wherein: sealed cushion (10) are installed at the top of feed liquor pipe (5), body (1) is polyurethane polymer material.

3. The percutaneous nephrostomy catheter of claim 1, wherein: an imaging ring (11) is embedded in one end, far away from the tube body (1), of the interior of the fiber and thin tube (2).

4. The percutaneous nephrostomy catheter of claim 1, wherein: the blood inhibiting pad (9) contains antibacterial hemostatic drugs.

5. The percutaneous nephrostomy catheter of claim 1, wherein: an annular stop block (12) is integrally machined at the top of the guide sheath (6), the annular stop block (12) is a holding part, and a convex block (13) is integrally machined on the surface of the annular stop block (12).

6. The percutaneous nephrostomy catheter of claim 1, wherein: the surfaces of the pipe body (1) and the fine pipe (2) are coated with hydrophilic coatings.