CN220142394U - Ureter guiding sheath - Google Patents
Ureter guiding sheath Download PDFInfo
- Publication number
- CN220142394U CN220142394U CN202321185940.3U CN202321185940U CN220142394U CN 220142394 U CN220142394 U CN 220142394U CN 202321185940 U CN202321185940 U CN 202321185940U CN 220142394 U CN220142394 U CN 220142394U
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- CN
- China
- Prior art keywords
- sheath
- expansion
- pipe
- tube
- expansion pipe
- Prior art date
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- 210000000626 ureter Anatomy 0.000 title abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000013013 elastic material Substances 0.000 claims description 3
- 208000001294 Nociceptive Pain Diseases 0.000 abstract description 3
- 208000037816 tissue injury Diseases 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 210000000244 kidney pelvis Anatomy 0.000 description 7
- 230000006378 damage Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 208000031868 Calculus ureteric Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 208000000014 Ureteral Calculi Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 238000002357 laparoscopic surgery Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000968 medical method and process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000000451 tissue damage Effects 0.000 description 1
- 231100000827 tissue damage Toxicity 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000003708 urethra Anatomy 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
Abstract
The utility model discloses a ureter guiding sheath, which comprises a guide wire, wherein a sheath pipe is arranged on the outer side of the guide wire, one end of the sheath pipe is connected with a sheath pipe joint, an inner cavity mechanism is arranged on the inner side of the sheath pipe, an expansion pipe is arranged in the inner cavity mechanism, one end of the expansion pipe is provided with a rotating mechanism which is convenient for the disassembly of the expansion pipe, the other side of the rotating mechanism is connected with an expansion pipe joint, the inner side surface of the sheath pipe joint is provided with an internal thread, and the sheath pipe joint is in threaded connection with the expansion pipe joint; the ureteral guide sheath has a simple structure and reasonable design, and the inner side wall of the sheath pipe joint is provided with the inner threads, so that the connection possibility is expanded, and the applicability and the functionality of the ureteral guide sheath are improved. In addition, the built-in cavity is used for accommodating the expansion tube, so that tissue injury and pain are reduced, and the operation efficiency is improved. Meanwhile, a miniature bearing is arranged between the expansion pipe joint and the expansion pipe, so that the expansion pipe is prevented from rotating, and discomfort and operation risks of patients are reduced.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a ureteral guide sheath.
Background
Ureteral calculus is a common disease of the urinary system and seriously affects the life quality of patients. Traditional treatment methods are laparoscopic surgery and open surgery, but the disadvantages of complicated operation, large trauma, long recovery period and the like make patients prohibitive. In recent years, ureteral guide sheaths as a novel therapeutic device are becoming hot spots for clinical research.
The ureteral guiding sheath is a flexible, long and thin tubular instrument which can enter the body through urethra or subcutaneous puncture and helps doctors to guide stones in the ureter to the bladder, thereby realizing the discharge of the stones.
The prior art has the following defects:
at present, the adaptability of the sheath tube joint of the traditional ureter guiding sheath is low, the complex environment of clinical operation cannot be met, in addition, when the expanding tube is placed in the guiding sheath, the top end of the expanding tube is in an excessively tortuous or excessively stretched state when the expanding tube contacts human tissue in the puncturing process, so that the risk of tissue damage is increased, and in addition, the expanding tube is easy to rotate due to friction during puncturing, so that the difficulty and the risk of operation are increased.
Disclosure of Invention
The utility model aims to provide a ureteral guiding sheath for solving the problems in the background technology.
In order to achieve the above purpose, the utility model provides a ureter guiding sheath, which comprises a guide wire, wherein a sheath tube is arranged on the outer side of the guide wire, one end of the sheath tube is connected with a sheath tube joint, an inner cavity mechanism is arranged on the inner side of the sheath tube, an expansion tube is arranged in the inner cavity mechanism, a rotating mechanism which is convenient for the disassembly of the expansion tube is arranged on one end of the expansion tube, an expansion tube joint is connected on the other side of the rotating mechanism, an inner thread is arranged on the inner side surface of the sheath tube joint, and the sheath tube joint is in threaded connection with the expansion tube joint.
Preferably, the inner cavity mechanism comprises:
the built-in cavity is arranged in the sheath tube.
Preferably, the rotating mechanism comprises:
and one side of the miniature bearing is connected with the expansion pipe, and the other side of the miniature bearing is connected with the expansion pipe joint.
Preferably, the end of the sheath tube is arc-shaped.
Preferably, the end of the expansion pipe is arc-shaped.
Preferably, the diameter of the front end opening of the sheath tube is smaller than that of the inner wall of the expansion tube.
Preferably, the sheath tube is made of elastic material.
Preferably, the inside of the expansion pipe joint is of a hollow structure.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the ureter guiding sheath, the inner side wall of the sheath pipe joint is provided with the inner threads, so that the connection possibility of the ureter guiding sheath can be expanded, and the ureter guiding sheath is beneficial to connecting other instruments with corresponding outer threads, so that the ureter guiding sheath has wider applicability and functionality in a medical process;
2. the ureter guiding sheath is provided with the inner cavity mechanism, the inner cavity mechanism comprises the built-in cavity, the built-in cavity is formed in the inner side of the sheath tube, the expansion tube can be contained, so that the operation is more stable in the operation process, the deviation is not easy to occur, the operation difficulty is reduced, meanwhile, the end head of the inner expansion tube cannot be in contact with the inner wall of the ureter of a human body, the tissue injury and pain during puncture are reduced, and the operation efficiency is improved;
3. this ureter guiding sheath through being provided with slewing mechanism, and slewing mechanism is including miniature bearing, can prevent inside expansion pipe rotation when rotatory expansion coupling through setting up miniature bearing between expansion coupling and expansion pipe, avoids the expansion pipe to drive the rotatory condition of sheath and takes place, reduces the friction of sheath lateral wall and ureter, reduces patient's discomfort and operation risk.
Drawings
FIG. 1 is a schematic view of the internal structure of the present utility model;
FIG. 2 is an enlarged view of the utility model at A;
FIG. 3 is an enlarged view of the utility model at B;
fig. 4 is a schematic structural view of the sheath tube joint of the present utility model after being connected with a negative pressure tube.
In the figure: 1. a guide wire; 2. a sheath; 3. a sheath tube joint; 4. an inner cavity mechanism; 401. a cavity is arranged in the cavity; 5. expanding the tube; 6. a rotating mechanism; 601. a miniature bearing; 7. an expansion pipe joint; 8. an internal thread; 9. a negative pressure pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.
Examples
Referring to fig. 1-4, the technical scheme of the ureteral guiding sheath provided by the utility model is as follows: the ureter guiding sheath comprises a guide wire 1, wherein a sheath tube 2 is arranged on the outer side of the guide wire 1, a sheath tube joint 3 is connected to one end of the sheath tube 2, an inner cavity mechanism 4 is arranged on the inner side of the sheath tube 2, an expansion tube 5 is arranged in the inner cavity mechanism 4, a rotating mechanism 6 which is convenient for the disassembly of the expansion tube 5 is arranged on one end of the expansion tube 5, an expansion tube joint 7 is connected to the other side of the rotating mechanism 6, an internal thread 8 is arranged on the side surface of the sheath tube joint 3, the sheath tube joint 3 is in threaded connection with the expansion tube joint 7, the possibility of connection can be expanded by arranging the internal thread 8 on the side surface of the sheath tube joint 3, and the connection of other instruments with corresponding external threads such as a guide needle, a negative pressure tube 9 and the like is facilitated, and the functions and the applicability of the ureter guiding sheath tube are improved;
the inner cavity mechanism 4 comprises an inner cavity 401, the inner cavity 401 is arranged in the sheath tube 2, when stones at the renal pelvis are removed, one end of the guide wire 1 is firstly required to be inserted into the renal pelvis, then the expansion tube 5 is placed in the sheath tube 2 and the expansion tube joint 7 is rotated to fix the inner expansion tube 5, at the moment, the end of the expansion tube 5 is positioned in the inner cavity 401, the end of the sheath tube 2 passes through the guide wire 1 to be led in along the urethral orifice of a patient and pushed to the renal pelvis, then the expansion tube joint 7 is rotated until the expansion tube 5 and the guide wire 1 are separated from the sheath tube joint 3, then the ureter soft lens, the endoscope and the operation cable are led into the renal pelvis to perform operation, after the operation is completed, the negative pressure tube 9 is installed at the position of the sheath tube joint 3, and the internal stones are discharged through the negative pressure tube 9 by the connection of the negative pressure device, in the process, the inner cavity 401 is arranged at the inner side of the sheath tube 2 to accommodate the expansion tube 5, so that the operation is more stable in the operation process, the operation is difficult to be offset, the operation is difficult, the operation is easy to occur, the operation is simultaneously, the inner wall of the sheath tube 5 cannot be in contact with the human body can not be damaged, and the operation can be prevented from the operation is easy, and the injury to the inner wall of the human body is caused.
The rotating mechanism 6 comprises a miniature bearing 601, one side of the miniature bearing 601 is fixedly connected with the expansion pipe 5, the other side of the miniature bearing 601 is fixedly connected with the expansion pipe joint 7, the expansion pipe joint 7 is rotated in the process of taking out the expansion pipe 5, one side which is in contact with the expansion pipe joint 7 is simultaneously rotated, the expansion pipe 5 is in contact with the inner pipe wall of the sheath pipe 2, therefore, the expansion pipe 5 cannot rotate, the expansion pipe 5 is taken out after the sheath pipe joint 3 is separated from the expansion pipe joint 7, in the process, the miniature bearing 601 can prevent the inner expansion pipe 5 from rotating when the expansion pipe joint 7 is rotated by arranging the miniature bearing 601 between the expansion pipe joint 7 and the expansion pipe 5, the situation that the expansion pipe 5 drives the sheath pipe 2 to rotate is avoided, friction between the outer side wall of the sheath pipe 2 and the ureter is reduced, and discomfort and operation risks of patients are reduced.
The end of the sheath tube 2 is arc-shaped, the damage of the top of the sheath tube 2 to human tissues can be reduced by designing the end of the sheath tube 2 into arc-shaped, and on the other hand, the arc-shaped design can enable the sheath tube to enter the ureter more easily, so that the success rate of ureter operation is effectively improved, and the risk and pain of the operation are reduced.
The end of the expansion tube 5 is arc-shaped, and by designing the end of the expansion tube 5 to be arc-shaped, the top of the expansion tube 5 can avoid puncturing the inner wall of the internal cavity 401 of the sheath tube 2, and the damage to the inner wall can be reduced.
The front port diameter of the sheath tube 2 is smaller than the caliber of the inner wall of the expansion tube 5, and the front port diameter of the sheath tube 2 is designed to be smaller than the caliber of the inner wall of the expansion tube 5, so that more movable space can be provided for the penetrating guide wire 1, friction is reduced, and the guide wire 1 is conveniently taken out and adjusted.
The sheath tube 2 is made of elastic material, and the sheath tube 2 can be made of medical grade plastic or rubber material (such as polyurethane, silicon rubber, fluoroplastic and the like) in the actual production process, so that the sheath tube 2 has good elasticity, high wear resistance and corrosion resistance.
The inside of expansion pipe joint 7 is hollow structure, through the inside design of expansion pipe joint 7 for hollow structure can make whole lightweight, and is more nimble in the operation in-process, makes things convenient for doctor's operation and grasp.
The working principle of the utility model is as follows:
when the ureteral guiding sheath of the embodiment is used, firstly, one end of a guide wire 1 is required to be inserted into a renal pelvis part, then an expansion pipe 5 is placed into the sheath pipe 2, the expansion pipe joint 7 is rotated to fix the expansion pipe 5 inside, at the moment, the end head of the expansion pipe 5 is positioned inside a built-in cavity 401, the port of the sheath pipe 2 is led in along the urethral orifice of a patient through the guide wire 1 and pushed to the renal pelvis part, then the expansion pipe joint 7 is rotated until the expansion pipe 5 and the guide wire 1 are separated from the sheath pipe joint 3, then the ureteral soft lens, an endoscope and an operation cable are led into the renal pelvis part by the pipe sheath 2, a negative pressure pipe 9 is arranged at the sheath pipe joint 3 after the operation is finished, and the internal stones are discharged through the connection of the negative pressure pipe 9 by a negative pressure device, in the process of taking out the expansion pipe 5, the expansion pipe joint 7 is rotated, at this time, one side contacted with the expansion pipe joint 7 rotates simultaneously, and the expansion pipe 5 is contacted with the inner pipe wall of the sheath pipe 2, so that the expansion pipe 5 cannot rotate, when the sheath pipe joint 3 is separated from the expansion pipe joint 7, the expansion pipe 5 is taken out, the possibility of connection of the expansion pipe 5 can be expanded by arranging the internal thread 8 on the side surface of the sheath pipe joint 3, the device is favorable for connecting other instruments with corresponding external threads, such as a guide needle, a negative pressure pipe 9 and the like, the functions and the applicability of the device are improved, the expansion pipe 5 can be accommodated by arranging the built-in cavity 401 on the inner side of the sheath pipe 2, the operation is more stable in the operation process, the offset is difficult to generate, the operation difficulty is reduced, meanwhile, the end head of the internal expansion pipe 5 cannot be contacted with the inner wall of a human ureter, the tissue injury and pain during puncture are reduced, the operation efficiency is improved, on the other hand, through setting up miniature bearing 601 between expansion coupling 7 and expansion pipe 5 can prevent that inside expansion pipe 5 from rotating when rotatory expansion coupling 7, avoid expansion pipe 5 to drive the rotatory condition of sheath 2 and take place, reduce the friction of sheath 2 lateral wall and ureter, reduce patient's discomfort and operation risk.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. Ureteral introducer sheath, comprising a guide wire (1), characterized in that: the outside of seal wire (1) is provided with sheath pipe (2), the one end of sheath pipe (2) is connected with sheath coupling (3), the inboard of sheath pipe (2) is provided with inner chamber mechanism (4), the inside of inner chamber mechanism (4) is provided with expansion pipe (5), the one end of expansion pipe (5) is provided with rotary mechanism (6) of being convenient for expand pipe (5) dismantlement, the opposite side of rotary mechanism (6) is connected with expansion coupling (7), the medial surface of sheath coupling (3) is provided with internal thread (8), sheath coupling (3) and expansion coupling (7) threaded connection.
2. The ureteral introducer sheath according to claim 1, characterized in that: the inner cavity mechanism (4) comprises:
the inner cavity (401) is arranged in the sheath tube (2).
3. The ureteral introducer sheath according to claim 1, characterized in that: the rotating mechanism (6) comprises:
and one side of the miniature bearing (601) is connected with the expansion pipe (5), and the other side of the miniature bearing (601) is connected with the expansion pipe joint (7).
4. The ureteral introducer sheath according to claim 1, characterized in that: the end of the sheath tube (2) is arc-shaped.
5. The ureteral introducer sheath according to claim 1, characterized in that: the end of the expansion pipe (5) is arc-shaped.
6. The ureteral introducer sheath according to claim 1, characterized in that: the front end diameter of the sheath tube (2) is smaller than the diameter of the inner wall of the expansion tube (5).
7. The ureteral introducer sheath according to claim 1, characterized in that: the sheath tube (2) is made of elastic materials.
8. The ureteral introducer sheath according to claim 1, characterized in that: the inside of the expansion pipe joint (7) is of a hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321185940.3U CN220142394U (en) | 2023-05-17 | 2023-05-17 | Ureter guiding sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321185940.3U CN220142394U (en) | 2023-05-17 | 2023-05-17 | Ureter guiding sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220142394U true CN220142394U (en) | 2023-12-08 |
Family
ID=89012489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321185940.3U Active CN220142394U (en) | 2023-05-17 | 2023-05-17 | Ureter guiding sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220142394U (en) |
-
2023
- 2023-05-17 CN CN202321185940.3U patent/CN220142394U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |