CN217138180U - Percutaneous nephrostomy sheath tube - Google Patents
Percutaneous nephrostomy sheath tube Download PDFInfo
- Publication number
- CN217138180U CN217138180U CN202123273227.8U CN202123273227U CN217138180U CN 217138180 U CN217138180 U CN 217138180U CN 202123273227 U CN202123273227 U CN 202123273227U CN 217138180 U CN217138180 U CN 217138180U
- Authority
- CN
- China
- Prior art keywords
- sheath
- ultrasonic
- processor
- percutaneous nephrostomy
- head end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The application discloses percutaneous nephrostomy sheath includes: the system comprises a sheath tube, a medical ultrasonic transducer, a processor and an ultrasonic display; the medical ultrasonic transducer is arranged at the head end of the sheath tube and used for acquiring ultrasonic signals of tissues and organs and stones around the sheath tube, converting the ultrasonic signals into electric signals and sending the electric signals to the processor; the processor is connected with the medical ultrasonic transducer through a lead and is used for converting the electric signal into an ultrasonic image; the ultrasonic display is connected with the processor and used for displaying the ultrasonic image. This application sets up ultrasonic transducer at the sheath pipe head end, can acquire the ultrasonic image of tissue organ and calculus around the sheath pipe at the operation in-process to reduce the damage risk of tissue organ, improve the clearance of calculus, reduce the clinical second phase and get the stone operation, alleviate patient's misery.
Description
Technical Field
The application relates to the technical field of medical instruments, in particular to a percutaneous nephrostomy sheath.
Background
With the rapid development of minimally invasive technology, percutaneous nephrolithotomy (PCNL) gradually replaces the traditional open surgery by virtue of its advantages of small wound, short operation time, rapid healing of postoperative wound, etc., becoming one of the most common methods for clinically treating kidney stones and ureteral upper segment stones at present, and being considered as the first choice method for treating kidney stones larger than or equal to 2cm or antler-shaped stones.
Most sheath tubes used with the PCNL are made of Polytetrafluoroethylene (PTFE), a channel is only established after the balloon or fascia dilator is expanded, the surrounding tissue structure cannot be observed in the process of inserting the sheath tubes into the kidney, and the conditions of lithotripsy and lithotomy cannot be monitored in real time in the process of lithotripsy and lithotomy, so that the risk of tissue and organ injury is increased, postoperative calculus may remain, and secondary operation is required.
Therefore, how to reduce the risk of tissue and organ damage during lithotripsy and lithotomy and effectively avoid calculus residues after the operation is a problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The application aims at providing a percutaneous nephrostomy sheath which is used for reducing the damage risk of tissues and organs and effectively avoiding calculus residues after operation.
In order to solve the above technical problem, the present application provides a percutaneous nephrostomy sheath, including:
the system comprises a sheath tube, a medical ultrasonic transducer, a processor and an ultrasonic display;
the medical ultrasonic transducer is arranged at the head end of the sheath and used for acquiring ultrasonic signals of tissues and organs and stones around the sheath, converting the ultrasonic signals into electric signals and sending the electric signals to the processor;
the processor is connected with the medical ultrasonic transducer through a lead and is used for converting the electric signal into an ultrasonic image;
the ultrasonic display is connected with the processor and used for displaying the ultrasonic image.
Preferably, the device also comprises a pressure sensor and a pressure display;
the pressure measuring sensor is arranged at the head end of the sheath tube, is connected with the pressure display through a lead and is used for feeding back the pressure in the renal pelvis to the pressure display in real time.
Preferably, the outer wall of the sheath is provided with scale marks, the scale marks start from the head end of the sheath, and the scale marks are marked to a length of at least 15 cm.
Preferably, the scale mark is one per 1cm, and the scale mark of each 5cm surrounds the sheath for one circle and is marked with a corresponding number.
Preferably, the head end of the sheath tube is an inclined slope.
Preferably, the tail end of the sheath tube is a cross section perpendicular to the length of the sheath tube, and a notch is formed in the tail end and consists of a round hole, a gap and a semicircular groove.
Preferably, the outer wall of the sheath is coated with a hydrophilic coating.
Preferably, the inner diameter of the sheath is three specifications of 6.2mm, 8.2mm and 10.2 mm.
Preferably, the guide wire is fixed to the outer wall of the sheath tube, extending from the head end to the tail end of the sheath tube.
Preferably, the sheath tube is made of PTFE material.
The application provides a percutaneous nephrostomy sheath, includes: the system comprises a sheath tube, a medical ultrasonic transducer, a processor and an ultrasonic display; the medical ultrasonic transducer is arranged at the head end of the sheath tube and used for acquiring ultrasonic signals of tissues and organs and stones around the sheath tube, converting the ultrasonic signals into electric signals and sending the electric signals to the processor; the processor is connected with the medical ultrasonic transducer through a lead and is used for converting the electric signal into an ultrasonic image; the ultrasonic display is connected with the processor and used for displaying the ultrasonic image. This application sets up ultrasonic transducer at the sheath pipe head end, can acquire the ultrasonic image of tissue organ and calculus around the sheath pipe at the operation in-process to reduce the damage risk of tissue organ, improve the clearance of calculus, reduce the clinical second phase and get the stone operation, alleviate patient's misery.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a block diagram of a percutaneous nephrostomy sheath provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a graduation mark arrangement of a percutaneous nephrostomy sheath provided in an embodiment of the present application;
the reference numbers are as follows: the sheath 1 is a sheath, the medical super-energy transducer 2 is a processor 3, the ultrasonic display 4 is a pressure measuring sensor 5, the pressure display 6 is a lead 7, the head end 8 is a head end 9 is a tail end 10 is a notch and the scale mark 11 is a scale mark.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.
The core of the application is to provide a percutaneous nephrostomy sheath.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.
Fig. 1 is a structural diagram of a percutaneous nephrostomy sheath provided in an embodiment of the present application, and as shown in fig. 1, the percutaneous nephrostomy sheath includes a sheath 1, a medical ultrasonic transducer 2, a processor 3, an ultrasonic display 4, a pressure sensor 5, a pressure display 6, and a lead 7; the sheath tube is provided with a head end 8 and a tail end 9, and the tail end 9 is provided with a gap 10; the outer wall of the sheath tube 1 is also provided with scale marks 11.
The sheath 1 can accommodate instruments for performing the relevant surgical procedure through the sheath 1. The medical ultrasonic transducer 2 is arranged at the head end 8 of the sheath 1 and used for acquiring ultrasonic signals of surrounding tissues and organs and calculi of the sheath 1, converting the ultrasonic signals into electric signals and sending the electric signals to the processor 3, and converting the electric signals into ultrasonic images by the processor 3 through corresponding processing. The medical ultrasonic transducer 2 is connected with the processor 3 through a lead 7, the lead 7 extends from the medical ultrasonic transducer 2 at the head end 8 to the tail end 9 of the sheath 1 along the outer wall of the sheath 1, and then extends from the tail end 9 to be connected with the processor 3, and the lead 7 is fixed on the outer wall of the sheath 1. The processor 3 is connected to the ultrasonic display 4, and may be in a wired connection or a wireless connection, and the connection manner between the processor 3 and the ultrasonic display 4 is not particularly limited in the embodiments of the present application.
The application provides a percutaneous nephrostomy sheath, includes: the system comprises a sheath tube, a medical ultrasonic transducer, a processor and an ultrasonic display; the medical ultrasonic transducer is arranged at the head end of the sheath tube and used for acquiring ultrasonic signals of tissues and organs and stones around the sheath tube, converting the ultrasonic signals into electric signals and sending the electric signals to the processor; the processor is connected with the medical ultrasonic transducer through a lead and is used for converting the electric signal into an ultrasonic image; the ultrasonic display is connected with the processor and used for displaying the ultrasonic image. The medical ultrasonic transducer is arranged at the head end of the sheath, and the ultrasonic image of tissues and organs and calculi around the sheath can be acquired in the operation process, so that the risk of injury of the tissues and organs is reduced, the clearance rate of the calculi is improved, the second-stage calculus removal operation in clinic is reduced, and the pain of a patient is relieved.
Since excessive pressure within the renal pelvis during lithotripsy can cause damage to the nephron and extravasation of the perfusate, which can lead to complications such as perirenal infection, it is necessary to monitor the pressure within the renal pelvis to reduce or prevent the occurrence of such complications. Based on the above embodiment, the embodiment of the present application further includes a pressure measuring sensor 5 and a pressure display 6, where the pressure measuring sensor 5 is disposed at the head end 8 of the sheath tube 1, and is connected to the pressure display 6 through a lead 7, so as to feed back the pressure in the renal pelvis to the pressure display 6 in real time.
The pressure sensor 5 is disposed at the head end 8 of the sheath tube 1, the medical ultrasound transducer 2 in the above embodiment is also disposed at the head end 8 of the sheath tube 1, and the pressure sensor 5 and the medical ultrasound transducer 2 may be disposed at the head end 8 of the sheath tube 1 in a staggered manner. The pressure sensor 5 is connected with the pressure display 6 through a lead 7, and the lead 7 is also fixed on the outer wall of the sheath tube 1, extends from the head end 8 to the tail end 9 of the sheath tube 1, and then extends out to be connected with the pressure display 6.
The embodiment of the application can feed back the pressure in the renal pelvis in real time by arranging the pressure measuring sensor and the pressure display, effectively avoids or reduces the nephron damage caused by overhigh pressure in the renal pelvis, can also enable doctors to judge whether the conditions such as infection can occur in the operation, and reduces the occurrence of complications.
Based on the above embodiment, the outer wall of the sheath 1 in the embodiment of the present application is further provided with the scale lines 11, the scale lines 11 start from the head end 5 of the sheath 1, and the scale lines 11 are marked to a length of at least 15 cm. The scale mark 11 is a scale mark 11 every 1cm, and every 5cm of the scale mark 11 surrounds the sheath 1 for a circle and is marked with corresponding numbers.
The graduation lines 11 start from the head end 8 of the sheath 1, namely from the head end 8 to the tail end 9, the corresponding numbers are gradually increased from small to large, the graduation lines 11 are the graduation lines 11 every 1cm, and the graduation lines 11 are marked to be at least 15cm in length. The scale marks 11 are printed on the outer wall of the sheath 1 by using ink, and the scale marks 11 can be all the scale marks 11 all around the sheath 1 for a circle, or part of the scale marks 11 all around the sheath for a circle, or every 5cm of the scale marks 11 all around the sheath 1 for a circle, which is not limited in the implementation of the present application. How to mark the scale marks 11 with numbers is not specifically limited in the embodiment of the present application, and the numbers corresponding to each scale mark 11 may be marked, in which case, the number marked on the outer wall of the sheath 1 is more, more dense, and inconvenient to view. Fig. 2 is a schematic diagram of the graduation marks of a percutaneous nephrostomy sheath provided in an embodiment of the present application, and as shown in fig. 2, the distance between adjacent graduation marks 11 is 1cm, every 5cm graduation mark 11 surrounds the sheath for 1 circle, and corresponding numbers are marked, such as 5cm, 10cm, 15cm, and the like. In the setting mode of the scale marks 11 and the mode of marking numbers in fig. 2, a certain distance exists between the numbers, and the numbers can be set to be larger, so that the numbers are convenient to check.
The depth that inserts the sheath pipe can be controlled according to the scale mark to this application implementation, avoids haring adjacent tissue organ, and every 5 cm's scale mark encircles sheath pipe a week to mark corresponding figure, also conveniently look over so that can clearly know the sheath pipe and insert the concrete depth in the tissue.
Based on the above embodiments, the head end 8 of the sheath tube 1 in the embodiments of the present application is an inclined slope, the degree of the inclined slope is not particularly limited in the embodiments of the present application, and when the sheath tube is horizontally placed, an included angle between the inclined slope of the head end 8 of the sheath tube 1 and a horizontal plane may be 45 ° to 50 °.
The head end design of sheath pipe in this application embodiment is the inclined plane of slope, can be convenient for the sheath pipe to insert the position of patient's operation.
Based on the above embodiments, in the embodiment of the present application, the tail end 9 of the sheath tube 1 is a cross section perpendicular to the length of the sheath tube, and the tail end 9 is provided with a notch 10, where the notch 10 is formed by a circular hole, a gap, and a semicircular groove. The diameter of the round hole can be 1mm, the round hole is used for fixing a common PCNL guide wire, and the semicircular groove and the gap are convenient for cutting and pulling out a postoperative sheath tube.
Based on the above embodiments, the sheath 1 in the embodiment of the present application may be made of PTFE material, and the inner diameter of the sheath 1 may have three specifications of 6.2mm, 8.2mm, and 10.2 mm. When a doctor performs an operation, the doctor can select the sheath tubes 1 with different specifications according to the size of the calculus, the shape of the calculus, the distribution position of the calculus and the condition of a patient, so that the design of the sheath tubes 1 with different specifications can meet the requirements of different operation conditions on the specifications of the sheath tubes.
For further understanding of the percutaneous nephrostomy sheath provided in the embodiments of the present application, reference is made to specific usage scenarios.
During the operation of percutaneous nephrolithotomy, a puncture needle is used for positioning puncture under the guidance of X-ray or B-ultrasonic, a guide wire is inserted into a target renal calyx or renal pelvis, then a fascia dilator is used for gradual expansion or balloon expansion, then the disinfected sheath tube 1 is slowly inserted into the body of a patient to a calculus area, and the other end of the guide wire is fixed in a round hole at a gap 10 at the tail end 9 of the sheath tube 1. In the inserting process, the inserting depth of the sheath tube 1 is controlled according to the scale marks 11, then the inserting position of the sheath tube 1 is timely adjusted according to the guidance of an ultrasonic image, surrounding visceral organs are prevented from being damaged, after the sheath tube 1 reaches a target area, the sheath tube 1 is rotated clockwise or anticlockwise, the ultrasonic image fed back by the medical ultrasonic transducer 2 is utilized, the process of lithotripsy and lithotomy is monitored in real time, and meanwhile, the pressure sensor 5 feeds back the pressure condition of the target area in real time. After the operation of removing the calculus is finished, a drainage tube is placed through the sheath tube 1, and then the sheath tube 1 can be directly taken out, or the sheath tube 1 is cut from the gap 10 at the tail end 9 of the sheath tube 1 and then taken out.
According to the percutaneous nephrostomy sheath provided by the embodiment of the application, when a percutaneous nephrolithotomy is performed, the depth and the position of the sheath can be controlled according to the scales and the ultrasonic images, so that adjacent tissues and organs are prevented from being damaged; meanwhile, the ultrasonic images in the lithotripsy and lithotripsy processes can enable doctors to monitor the lithotripsy and lithotripsy conditions in real time, so that the lithotripsy and lithotripsy removing rate is improved, the second-stage lithotripsy operation which is usually required clinically is avoided or reduced, and the success rate of the operation is improved; in addition, the pressure sensor can feed back the pressure in the renal pelvis in real time, thereby avoiding or reducing the damage of nephron caused by overhigh pressure in the renal pelvis and reducing the operation complication.
The percutaneous nephrostomy sheath provided by the present application is described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are 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. Further, the terms "central," "radial," "axial," "depth," "inner diameter," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "leading," "trailing," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings to facilitate the description of the application and are not intended to indicate or imply that the referenced components or parts must have a particular orientation and, therefore, are not to be considered limiting of the application.
Claims (10)
1. A percutaneous nephrostomy sheath, comprising:
the system comprises a sheath tube, a medical ultrasonic transducer, a processor and an ultrasonic display;
the medical ultrasonic transducer is arranged at the head end of the sheath and used for acquiring ultrasonic signals of tissues and organs and stones around the sheath, converting the ultrasonic signals into electric signals and sending the electric signals to the processor;
the processor is connected with the medical ultrasonic transducer through a lead and is used for converting the electric signal into an ultrasonic image;
the ultrasonic display is connected with the processor and used for displaying the ultrasonic image.
2. The percutaneous nephrostomy sheath of claim 1, further comprising a pressure transducer and a pressure display;
the pressure measuring sensor is arranged at the head end of the sheath tube, is connected with the pressure display through a lead and is used for feeding back the pressure in the renal pelvis to the pressure display in real time.
3. The percutaneous nephrostomy sheath of claim 1, wherein the outer wall of the sheath is provided with graduations beginning at the head end of the sheath, the graduations marking a length of at least up to 15 cm.
4. The percutaneous nephrostomy sheath of claim 3, wherein the graduation marks are one per 1cm, and every 5cm of graduation marks encircle the sheath for one revolution and are marked with corresponding numbers.
5. The percutaneous nephrostomy sheath of claim 1, wherein the tip of the sheath is an inclined bevel.
6. The percutaneous nephrostomy sheath according to claim 1, wherein the tail end of the sheath has a cross section perpendicular to the length of the sheath, and the tail end is provided with a notch, and the notch is composed of a round hole, a slit and a semicircular groove.
7. The percutaneous nephrostomy sheath of claim 1, wherein the outer wall of the sheath is coated with a hydrophilic coating.
8. The percutaneous nephrostomy sheath of claim 1, wherein the inner diameter of the sheath is of three gauges of 6.2mm, 8.2mm and 10.2 mm.
9. The percutaneous nephrostomy sheath of claim 1 or 2, wherein the guide wire is fixed to the outer wall of the sheath, extending from a head end to a tail end of the sheath.
10. The percutaneous nephrostomy sheath of claim 1, wherein the sheath is made of PTFE material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123273227.8U CN217138180U (en) | 2021-12-23 | 2021-12-23 | Percutaneous nephrostomy sheath tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123273227.8U CN217138180U (en) | 2021-12-23 | 2021-12-23 | Percutaneous nephrostomy sheath tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217138180U true CN217138180U (en) | 2022-08-09 |
Family
ID=82686772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123273227.8U Active CN217138180U (en) | 2021-12-23 | 2021-12-23 | Percutaneous nephrostomy sheath tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217138180U (en) |
-
2021
- 2021-12-23 CN CN202123273227.8U patent/CN217138180U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5059197A (en) | Lesion location device | |
| EP0092389B1 (en) | Apparatus for catheterization permitting use of a smaller gage needle | |
| JP2008507378A (en) | System and method for determining the optimal length of a retractor with minimally invasive surgery | |
| JPH0373138A (en) | Guide device for puncturing bioassay needle connected to puncturing device for in vivo sampling of tissue | |
| EP2074952A1 (en) | Metal needle usable in echo imaging | |
| US11690703B2 (en) | Method and apparatus for monitoring implantable device for urinary continence | |
| CN217138180U (en) | Percutaneous nephrostomy sheath tube | |
| WO2016148882A1 (en) | Improved needle scribe at tip | |
| US8323209B2 (en) | Chorionic villus sampling catheter | |
| JP2859826B2 (en) | Ultrasound probe with puncture needle guide | |
| RU170829U1 (en) | TROAKAR FOR A SINGLE-BLADED BLADDER PUNCTION OF THE BLADDER | |
| US20170245841A1 (en) | Systems and methods for improved tissue sampling | |
| CN209450624U (en) | Localised puncture external member with push rod | |
| CN114366252A (en) | Device and method for accurate puncture at surgical access position in endoscopic surgery | |
| CN211213416U (en) | Percutaneous renal puncture guiding needle | |
| CN217390906U (en) | Spinal endoscope positioning device | |
| US10933223B2 (en) | Access devices and associated methods | |
| CN217119094U (en) | Fetal body cavity drainage tube | |
| JP5361430B2 (en) | Ablation area marker instrument | |
| RU98111U1 (en) | DEVICE FOR PERFORMANCE AND DRAINAGE OF CAVITY | |
| CN213158764U (en) | Device for assisting in guiding a catheter through a tortuous vessel | |
| CN204839582U (en) | Fixing device in art of pjncture needle | |
| CN216933479U (en) | Pulmonary nodule puncture location cover package and position sleeve pipe and direction control device | |
| CN210749320U (en) | External member is put into to urethra locator under endoscope | |
| CN212466068U (en) | Visual expander |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |