CN218305226U - Special ureteral stent for kidney transplantation - Google Patents

Abstract

The utility model discloses a special ureter support is transplanted to kidney, the utility model relates to the technical field of medical instrument, the utility model discloses a be responsible for, the both ends of being responsible for are fixed mounting respectively has first connector and second connector, the bladder section of curling is installed to the right-hand member of first connector. This special ureter support is transplanted to kidney passes through the effect of oval rubber spherical shell self tension and expands down, its surface and the contact of renal pelvis inner wall, realize the reinforcement of the device, renal pelvis internal pressure is big when needs urinate, the inside of renal pelvis internal urine entering urination groove is washed one side of non return membrane open and is got into the inside of kidney curling section through the recess, the inside urine of kidney curling section is through oval rubber spherical shell, the second connector, be responsible for, inside first connector and the bladder curling section of discharging to the bladder, bladder internal pressure is great when the patient holds back the urine, the inside urine of bladder is through the bladder curling section, first connector, be responsible for and the inside of second connector refluence to kidney curling section.

Description

A special ureteral stent for kidney transplantation

technical field

The utility model relates to the technical field of medical equipment, in particular to a special ureteral support for kidney transplantation.

Background technique

Ureteral stents, also known as double "J" tubes, are long, thin tubes that are placed from the kidney to the bladder. Ureteral stent is a commonly used medical device in urological surgery. When stones, tumors, etc. cause obstruction, the ureteral stent can support, expand the ureter and drain kidney urine. In addition, it is also used in ureteral surgery or renal pelvis surgery. Some require routine placement of ureteral stents.

After kidney transplantation recipients are placed with ureteral stents, the stents basically belong to through-tubes. After the ureteral stent is placed, the anti-reflux structure will be destroyed. When the patient urinates or holds back the urine, the pressure in the bladder It will rise suddenly, causing urine to flow back to the kidney, causing low back pain in patients, and may also increase the risk of early urinary tract infection, affecting the recovery after kidney transplantation, and there is a narrow end of the catheter between the renal pelvis and the bladder. In order to ensure the anti-compression effect of the stent tube, it has a certain hardness, and the overall width and hardness of the stent tube are consistent, and it forms a squeeze on the narrow end, which affects the comfort of the patient.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a special ureteral stent for kidney transplantation, which solves the problems raised in the background art above.

In order to achieve the above purpose, the utility model is achieved through the following technical solutions: a special ureteral stent for kidney transplantation, including a main pipe, the two ends of the main pipe are respectively fixedly installed with a first connector and a second connector, the first The right end of the connecting head is equipped with a bladder curling section, the left end of the second connecting head is equipped with an elliptical rubber spherical shell, the left end of the elliptical rubber spherical shell is equipped with a kidney curling section, and the inner wall of the kidney curling section is provided with a groove , the inner wall of the groove is provided with a urination groove, the inner wall of the groove is provided with a non-return film, and the three sides of the non-return film are fixedly connected with the inner wall of the groove, and a reinforcement mechanism is installed inside the main pipe.

Preferably, the inside of the oval rubber spherical shell is provided with equidistantly arranged elastic cords, and both ends of the elastic cords are fixedly connected to the inner wall of the oval rubber spherical shell.

Preferably, the reinforcing mechanism includes a helical piece and an elastic strip, the inside of the main pipe is fixedly connected with a helical piece, and both ends of the helical piece are fixedly connected with elastic strips arranged at a distance, and the two sets of elastic strips are far away from the spiral One end of the sheet is fixedly connected to the inner walls of the first connecting head and the second connecting head respectively.

Preferably, both the elastic strip and the elastic strip are made of memory metal.

Preferably, the main pipe, the curled section of the kidney and the curled section of the bladder are all soft tubes.

Preferably, the curled section of the bladder is provided with a plurality of urination holes along its surrounding direction.

The utility model provides a special ureter support for kidney transplantation. Has the following beneficial effects:

(1) The ureteral stent for kidney transplantation expands under the action of the tension of the elliptical rubber spherical shell, and its outer surface contacts the inner wall of the renal pelvis to realize the reinforcement of the device. When urination is required, the internal pressure of the renal pelvis is high, and the urine in the renal pelvis Enter the interior of the urination groove, flush one side of the non-return membrane through the groove and enter the interior of the kidney curl section, and the urine in the kidney curl section passes through the oval rubber spherical shell, the second connector, the main pipe, the first connector and the bladder curl When the patient holds back urine, the internal pressure of the bladder is high, and the urine in the bladder flows back into the kidney coiled segment through the bladder coiled segment, the first connector, the main tube and the second connector, and the internal pressure of the kidney coiled segment Increase the size and press the anti-return membrane to stick on the inner wall of the groove to block the urine. The reflux urine cannot flow back from the bladder to the renal pelvis, so as to avoid causing the urine to flow back to the kidney, which may cause low back pain in patients, and may also increase early urine flow. The risk of road infection and the problem affecting the recovery after kidney transplantation.

(2) The special ureteral stent for kidney transplantation, through the positions where the two ends of the main tube are located at the elastic strips respectively coincide with the ureteral stenosis, the adaptability of the device is improved, and the use is more comfortable. The elastic strips support the two ends of the main tube , the helical piece supports the middle part of the main tube, which improves the compression resistance of the main tube and avoids the narrow end of the urinary catheter between the renal pelvis and the bladder. In order to ensure the anti-compression effect of the stent tube, it has a certain hardness. The overall width and hardness of the stent tube Consistently, it forms a squeeze on the narrow end, which affects the comfort of the patient.

Description of drawings

Fig. 1 is the main view structure schematic diagram of the utility model;

Fig. 2 is a schematic diagram of the internal structure of the supervisor of the utility model;

Fig. 3 is a schematic diagram of the internal structure of the curled section of the kidney of the present invention;

Fig. 4 is a schematic diagram of the enlarged structure at A in Fig. 2 of the present utility model.

In the figure: 1. The curled section of the kidney; 2. The non-return membrane; 3. The urination groove; 4. The main pipe; 5. The first connector; 6. The curled section of the bladder; 7. The urination hole; , the second connector; 10, the elastic strip; 11, the spiral piece; 12, the groove.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-4, the utility model provides a technical solution: a special ureteral stent for kidney transplantation, including a main pipe 4, the two ends of the main pipe 4 are respectively fixedly installed with a first connector 5 and a second connector 9, the second The right end of the first connector 5 is equipped with a bladder curl section 6, the left end of the second connector 9 is equipped with an elliptical rubber spherical shell 8, the left end of the elliptical rubber spherical shell 8 is equipped with a kidney curl section 1, and the inner wall of the kidney curl section 1 is provided with Groove 12, the inner wall of the groove 12 is provided with a urination groove 3, the inside of the groove 12 is provided with a non-return film 2, and the three sides of the non-return film 2 are fixedly connected with the inner wall of the groove 12, and the inside of the main pipe 4 is installed with The reinforcement mechanism, by placing the kidney curled section 1 in the renal pelvis, and the bladder curled section 6 in the bladder, expands under the action of the tension of the elliptical rubber spherical shell 8 itself, and its outer surface is in contact with the inner wall of the renal pelvis to realize the reinforcement of the device. When urinating, the internal pressure of the renal pelvis is high, and the urine in the renal pelvis enters the interior of the urination groove 3, and the side of the non-return membrane 2 is washed away, passes through the groove 12, and enters the interior of the kidney curl section 1, and the urine in the kidney curl section 1 passes through the oval rubber ball The shell 8, the second connecting head 9, the main pipe 4, the first connecting head 5 and the bladder curling section 6 are discharged into the bladder. The connecting head 5, the main pipe 4 and the second connecting head 9 flow back to the inside of the kidney curled section 1, and the internal pressure of the kidney curled section 1 increases to press the non-return membrane 2 and stick to the inside of the groove 12 to block urine, and the refluxed urine Fluid cannot flow back from the bladder to the renal pelvis.

Please refer to Fig. 1 and shown in Fig. 4, the inside of oval rubber spherical shell 8 is provided with equidistantly arranged elastic cords 13, and the two ends of elastic cords 13 are all fixedly connected with the inner wall of oval rubber spherical shell 8, pull oval rubber ball The inner wall of the shell 8 draws closer to the middle, which increases the recovery ability of the elliptical rubber spherical shell 8.

Please refer to Fig. 2 and Fig. 4, the reinforcement mechanism includes a helical piece 11 and an elastic strip 10, the inside of the main pipe 4 is fixedly connected with a helical piece 11, and both ends of the helical piece 11 are fixedly connected with equidistantly arranged elastic strips 10, And the two groups of elastic strips 10 are fixedly connected to the inner walls of the first connector 5 and the second connector 9 at the ends away from the helical piece 11 respectively, and the positions of the two ends of the main tube 4 at the elastic strips 10 respectively coincide with the ureteral stenosis, The adaptability of the device is improved, and the use is more comfortable. The elastic strip 10 supports both ends of the main pipe 4, and the helical piece 11 supports the middle of the main pipe 4, thereby improving the compression resistance of the main pipe 4.

Please refer to Fig. 2 and Fig. 4, the elastic strip 10 and the helical piece 11 are both made of memory metal, so that they have the ability to restore and prevent the device from being shriveled due to compression.

Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the main tube 4, the kidney curled section 1 and the bladder curled section 6 are all made of soft tubes, which fit better with the ureter and make the patient more comfortable.

Please refer to FIG. 1 , the curled section of the bladder 6 is provided with a plurality of urination holes 7 along its surrounding direction to increase the urination speed.

When working, when using this special ureteral stent for kidney transplantation, the operator places the sterilized ureteral stent in the ureter of the transplanted kidney through the anastomosis, the kidney curled section 1 is located in the renal pelvis, and the bladder curled section 6 is located in the bladder. The elliptical rubber spherical shell 8 expands under the action of its own tension, and its outer surface contacts the inner wall of the renal pelvis to realize the reinforcement of the device. When urination is required, the internal pressure of the renal pelvis is high, and the urine in the renal pelvis enters the interior of the urination groove 3 and the non-return membrane One side of 2 is punched through the groove 12 and enters the inside of the kidney curled section 1, and the urine inside the kidney curled section 1 passes through the oval rubber spherical shell 8, the second connector 9, the main pipe 4, the first connector 5 and the bladder curled section 6. It is discharged into the bladder. When the patient holds back the urine, the pressure inside the bladder is relatively high, and the urine in the bladder flows back to the inside of the kidney coiled section 1 through the bladder coiled section 6, the first connector 5, the main tube 4 and the second connector 9. The internal pressure of the curled section 1 of the kidney increases and presses the non-return membrane 2 and sticks it to the inside of the groove 12 to block the urine. The reflux urine cannot flow back from the bladder to the renal pelvis. The two ends of the main tube 4 are located at the position of the elastic strip 10 The elastic strips 10 support the two ends of the main pipe 4 and the helical pieces 11 support the middle of the main pipe 4 respectively, so as to improve the compression resistance of the main pipe 4 .

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. without further restrictions. The phrase "the inclusion of an element defined by ... does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising said element".

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. A special ureteral stent for kidney transplantation, comprising a main pipe (4), characterized in that: the two ends of the main pipe (4) are respectively fixedly installed with a first connector (5) and a second connector (9). The bladder curling section (6) is installed on the right end of the first connector (5), and the oval rubber spherical shell (8) is installed on the left end of the second connector (9), and the oval rubber spherical shell (8) The left end is equipped with a kidney curled section (1), the inner wall of the kidney curled section (1) is provided with a groove (12), the inner wall of the groove (12) is provided with a urination groove (3), and the groove ( 12) is provided with a non-return film (2) inside, and the three sides of the non-return film (2) are fixedly connected with the inner wall of the groove (12), and a reinforcement mechanism is installed inside the main pipe (4). 2. A special ureteral stent for kidney transplantation according to claim 1, characterized in that: the inside of the oval rubber spherical shell (8) is provided with equidistantly arranged elastic cords (13), and the elastic cords (13) ) both ends are fixedly connected with the inner wall of the oval rubber spherical shell (8). 3. A special ureteral stent for kidney transplantation according to claim 2, characterized in that: the reinforcing mechanism includes a helical piece (11) and an elastic strip (10), and the inside of the main tube (4) is fixedly connected with a helical piece (11), the two ends of the spiral piece (11) are fixedly connected with equidistantly arranged elastic strips (10), and the ends of the two sets of elastic strips (10) away from the spiral piece (11) are respectively connected to the first The inner wall of the head (5) and the second connecting head (9) is fixedly connected. 4. The special ureteral stent for kidney transplantation according to claim 3, characterized in that: the elastic strip (10) and the elastic strip (10) are both made of memory metal. 5 . The ureteral stent for kidney transplantation according to claim 4 , characterized in that: the main pipe ( 4 ), the kidney curled section ( 1 ) and the bladder curled section ( 6 ) are all soft tubes. 6 . The ureteral stent for kidney transplantation according to claim 5 , characterized in that: the bladder curled section ( 6 ) is provided with a plurality of urination holes ( 7 ) along its surrounding direction.

Images