CN210844881U - Percutaneous transhepatic cystic fistulization balloon dilatation catheter - Google Patents

Abstract

A percutaneous transhepatic cholecystostomy balloon dilatation catheter comprises a hard catheter, a balloon, a water injection channel, a plastic card, a soft catheter, a drainage bag connector and a metal mark, wherein the balloon is arranged outside the hard catheter, the water injection channel is arranged at one end of the balloon, and the plastic card is also arranged at one end of the water injection channel on the outer surface of the balloon; one end of the hard catheter is connected with one end of the soft catheter, the other end of the soft catheter is connected with the drainage bag connector, and the other end of the hard catheter penetrates out of the balloon and is wrapped with a metal mark. The utility model is designed as a single bag, which is simple in design and easy to produce and popularize clinically; the diameter and the length of the saccule have various different combination specifications, and the proper combination specification can be selected according to the specific situation of a patient; the plastic card can prevent the saccule from moving to the outside or inside of the body; the metal mark can guide the adjustment of the position and the direction when the saccule enters each layer of tissue and the depth of the saccule entering the gall bladder.

Description

Percutaneous transhepatic cystic fistulization balloon dilatation catheter

Technical Field

The utility model relates to a percutaneous transhepatic cholecystostomy sacculus dilating catheter, belonging to the technical field of medical appliances.

Background

With the development of medical science, particularly medical instruments and minimally invasive surgery, percutaneous transhepatic cholecystocentesis is widely applied to clinic, and the fistulous tract gradual expansion and choledochoscope exploration technology developed on the basis of the percutaneous transhepatic cholecystocentesis is gradually developed in clinic, and is mainly used for cholecystocentesis patients with various serious basic diseases or old and weak patients who are difficult to suffer from anesthesia and operations. Meanwhile, the utility model can also be used as a surgical mode of gallbladder-protecting calculus-removing surgery.

The current percutaneous transhepatic cystic puncture fistulization methods mainly comprise two methods: 1) percutaneous transhepatobiliary puncture drainage for 1 week, dilating sinus 1-2 times per week, increasing diameter of dilating catheter by 1-2F each time until sinus is dilated to 16-18F, performing choledochoscope examination and treatment via sinus; 2) after drainage for one week, the sinus tract was dilated to 16-18F at one time.

The advantage of this technique is that the puncture is gone on under bedside supersound guide local anesthesia, and the cholangioscope also can be accomplished at the bedside, and operating time is short, avoids general anesthesia or operation to high-risk patient's huge risk, need not whole anesthesia, does not advance the operating room, and the postoperative wound is little, and the patient resumes soon, and the cost of being in hospital is few.

However, the disadvantages of the above-described techniques are: the treatment period is long, the sinus tract is repeatedly expanded, the wound is relatively large, the pain of a patient is large, the tube carrying time is long, the movement is inconvenient, and the life quality is greatly influenced; complications occur at 4-10%, including bleeding, vagal nerve response, pneumothorax, biliary peritonitis, bowel perforation, catheter detachment, etc., and can often endanger the life of the patient once serious complications occur. Therefore, the clinical application of this technique is greatly limited.

In view of the above, the percutaneous transhepatic balloon dilatation is a safer and more effective method for establishing the sinus at one time. The specific operation is that under the ultrasonic guidance, the skin is punctured through a hepatobiliary sac, a saccule dilatation catheter is placed along a guide wire, catheters with different lengths and diameters are selected according to the length of a sinus and the diameter of a choledochoscope, water is injected into the saccule to dilate the saccule, a water injection channel is closed, the diameter and the pressure of the saccule are maintained for about 1 week, and during the saccule dilatation, the guide wire channel at the center of the saccule can be connected with drainage so as to continuously drain bile in the gallbladder. After 1 week, the sinuses are formed, and the fibrocholedochoscope is used to remove stones through the sinuses, and if necessary, the stones are removed after breaking the stones. After removing the stone, the sinus is drained by the built-in tube, the tube is gradually withdrawn, the sinus is closed, and the disease is cured.

Compared with the staged or first-stage sinus dilation for stone removal, the sinus can be established at one time by a balloon dilation method, so that the method is safer, minimally invasive, economical and effective, the treatment period is short, the wound is smaller, the pain of a patient is greatly reduced, the dilated balloon can press surrounding tissues, the possibility of bleeding and gall bladder leakage is greatly reduced, and the safety of a percutaneous transhepatobiliary fistulation operation mode is greatly improved.

The patent number is 2014203070923, the name "a two bag pipes for percutaneous transhepatobiliary sac puncture drainage" patent, be provided with drainage channel and two gas injection passageways A, B in being responsible for, wherein gas injection passageway A's front end and parcel are responsible for the spherical bag intercommunication on, its tail end with be responsible for the separation and with the one-way gas injection valve intercommunication of spherical bag, gas injection passageway B's front end and the tubular bag intercommunication of parcel on being responsible for, its tail end with be responsible for the separation and with the one-way gas injection valve intercommunication of tubular bag the person in charge's front end is provided with the through-hole. : the two gas injection channels A, B are disposed within the main tube near the inside tube wall of the main tube. The front end of the main pipe is bent to be J-shaped in a natural state, an opening is formed in the tip end of the main pipe, and a plurality of side holes are formed in the pipe wall corresponding to the bent portion. When the device is used, the spherical sac is placed in the gallbladder cavity, the spherical sac is spherical after being inflated and expanded and is tightly attached to the mucosa of the back wall of the gallbladder cavity, the tubular sac is placed outside the gallbladder cavity, and the tubular sac is tubular after being inflated and expanded and generates certain pressure on the surrounding liver and the tissues of the chest and abdominal wall. The front end of the tubular sac is tightly attached to the rear end of the spherical sac.

The technical scheme has the following defects: 1) the structure is complex, and the production and the popularization are difficult; 2) a device for preventing the saccule from moving into the body is designed, the external part of the saccule is too long and is not beneficial to nursing, and the whole saccule is easy to move into the body if the external part of the saccule is too short; 3) due to different puncture paths, the thickness of the tissue from the skin to the gall bladder of each patient is different; in addition, the tolerance of the patient is inconsistent in the operation process, and the operation to be performed through the fistula tract is different in the later period, so that the diameter and the length of the balloon need different combination specifications; 4) the technical scheme is double-bag, the structure is complex, and the production cost is higher; 5) the balloon design has no metal mark, and in the actual operation process, the real-time position in the balloon puncture process and the depth of entering the gallbladder are difficult to accurately judge, so that the operation failure is easy to cause.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, thereby providing a percutaneous transhepatic cholecystostomy sacculus dilating catheter.

A percutaneous transhepatic cholecystostomy balloon dilatation catheter comprises a hard catheter, a balloon, a water injection channel, a plastic card, a soft catheter, a drainage bag connector and a metal mark, wherein the balloon is arranged outside the hard catheter, the water injection channel is arranged at one end of the balloon, and the plastic card is also arranged at one end of the water injection channel on the outer surface of the balloon; one end of the hard catheter is connected with one end of the soft catheter, the other end of the soft catheter is connected with the drainage bag connector, and the other end of the hard catheter penetrates out of the balloon and is wrapped with a metal mark.

The total length of the hard conduit and the soft conduit is 20 cm.

The balloon is 8-12cm in length and 5-10cm in diameter.

The beneficial effect of adopting above-mentioned technical scheme is:

1. the utility model is a single balloon, simple in design, easy to produce and popularize clinically;

2. the utility model has simple structure and low research, development and production cost;

3. the utility model has different combination specifications according to the different conditions of each patient, so the diameter and the length of the saccule have various different combination specifications, and the proper combination specification can be selected according to the specific conditions of the patient;

4. the proper position of the external part of the balloon body of the utility model is locked by the plastic card, and the plastic card is adhered to the skin or fixed by sewing, thus preventing the balloon from moving to the external or internal part;

5. the balloon outer catheter of the utility model is designed to be soft, which is beneficial to postoperative care, while the balloon inner catheter is designed to be hard, which can make the catheter easily enter the gall bladder through each layer of tissue during operation, and the catheter is not easy to deform and block after successful operation, thus being beneficial to bile drainage;

6. the utility model discloses a sacculus top design metal mark can accurately judge the real-time position of each layer tissue of sacculus puncture and the degree of depth that gets into the gall-bladder in operation process, does benefit to the success of operation and confirms the best position that the sacculus was put.

Drawings

Fig. 1 is a schematic view of the balloon dilatation catheter for percutaneous transhepatic cystic fistulation of the utility model.

In the figure: 1-hard catheter, 2-balloon, 3-water injection channel, 4-plastic card, 5-soft catheter, 6-drainage bag joint and 7-metal mark.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings:

a percutaneous transhepatobiliary fistulization balloon dilatation catheter, as shown in fig. 1: the medical drainage device comprises a hard catheter 1, a balloon 2, a water injection channel 3, a plastic card 4, a soft catheter 5, a drainage bag joint 6 and a metal mark 7, wherein the balloon 2 is arranged outside the hard catheter 1, the water injection channel 3 is arranged at one end of the balloon 2, the balloon 2 can easily break through tissues of all layers to enter a gallbladder when not subjected to water injection operation, water can be injected into the balloon 2 through the water injection channel 3, the hard catheter 1 in the balloon can drain bile, the plastic card 4 is further arranged at one end of the water injection channel 3 on the outer surface of the balloon 2, the diameter of the inner ring of the plastic card 4 is slightly smaller than that of the balloon 2, the balloon 1 after water injection can be clamped and tightly attached to the skin, and an adhesive tape is externally used; one end of the hard catheter 1 is connected with one end of the soft catheter 5, the other end of the soft catheter 5 is connected with the drainage bag connector 6, the other end of the hard catheter 1 penetrates out of the balloon 2 and then is wrapped with the metal mark 7, and the metal mark 7 can be clearly displayed under ultrasound during operation to guide the depth of the hard catheter 1 entering the liver and the gallbladder.

The utility model discloses application method: the puncture needle is guided by ultrasound to puncture the gall bladder, the guide wire is arranged into the gall bladder through the puncture needle after the puncture needle is successful, the puncture needle is withdrawn, and the saccule 2 is arranged into the gall bladder along the guide wire; the hard catheter 1 is arranged in the sacculus 2, so that when the operation of water injection is not carried out, each layer of tissue is easy to break through and enter the gall bladder, and the deformation caused by factors such as the pressure of the sacculus 2 is not easy to occur, thereby being beneficial to bile drainage after the operation is successful. The far end of the hard catheter 2 penetrates out of the saccule 2 and is wrapped with a metal mark 7, and the metal mark 7 can be clearly displayed under ultrasound during operation to guide the adjustment of the position and the direction of the hard catheter 1 when the hard catheter enters each layer of tissue and the depth of the hard catheter entering the gall bladder. 2 near-ends of sacculus are equipped with the water injection passageway, confirm 2 positions of sacculus after, place plastics card 4 outside sacculus 2 to hug closely skin, water injection passageway water injection expansion sacculus 2, 4 inner circle diameters of plastics card slightly are less than sacculus 2, can make 4 tight card sacculus 2 of plastics card when 2 expansions of sacculus, paste or sew up in skin with plastics card 4, make 2 fixed in position of sacculus, be difficult to internal and external removal. The near end of the hard catheter 1 is connected with the soft catheter 5, the other end of the soft catheter 5 is externally connected with a drainage bag through a drainage bag joint 6, and bile in the gall bladder can be drained out of the body through the hard catheter 1 and the soft catheter 5.

The total length of the hard catheter 1 and the soft catheter 5 is 20cm, the soft catheter 5 at the external part of the balloon 2 is too long to be beneficial to nursing, and the balloon 2 is easy to move into the body as a whole due to too short.

The length of the sacculus 2 is 8-12cm, the diameter is 5-10cm, the diameter and the length of the sacculus 2 have various different combination specifications, and the proper combination specification can be selected according to the specific situation of a patient.

Claims (3)

1. A percutaneous transhepatic cholecystostomy balloon dilatation catheter comprises a hard catheter (1), a balloon (2), a water injection channel (3), a plastic card (4), a soft catheter (5) and a drainage bag joint (6), wherein the balloon (2) is arranged outside the hard catheter (1), the water injection channel (3) is arranged at one end of the balloon (2), and the plastic card (4) is also arranged at one end of the water injection channel (3) on the outer surface of the balloon (2); stereoplasm pipe (1) one end links to each other with soft pipe (5) one end, and soft pipe (5) other end links to each other its characterized in that with drainage bag joint (6): the other end of the hard catheter (1) penetrates out of the balloon (2) and is wrapped with a metal mark (7).

2. The percutaneous transhepatobiliary fistulization balloon dilation catheter of claim 1, wherein: the total length of the hard catheter (1) and the soft catheter (5) is 20 cm.

3. The percutaneous transhepatobiliary fistulization balloon dilation catheter of claim 1, wherein: the balloon (2) is 8-12cm in length and 5-10cm in diameter.

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