CN221154226U - Renal channel closing device - Google Patents

Abstract

The utility model provides a renal channel closing device, which comprises a guide piece, a blocking piece and a pushing piece, wherein the distal end of the guide piece is suitable for being inserted into a focus; the plugging piece is sleeved on the guide piece and slides along the guide piece under the action of external force; the pushing piece is sleeved on the guide piece, one end of the pushing piece is connected with the plugging piece, the other end of the pushing piece is suitable for being connected with external driving equipment, and the pushing piece slides along the guide piece and drives the plugging piece to reach a preset position under the driving of the outside. The design of the guide is such that it guides precisely, helping to reduce the risk of handling and ensuring the correct position of the device. The plugging piece can slide along the guiding piece under the action of external force, so that the renal channel can be plugged. By driving the pushing member, the blocking member can be accurately pushed to a preset position. Such precise position control helps to ensure accuracy and stability of the occluding component and to enhance the therapeutic or diagnostic effect.

Description

Renal channel closing device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a kidney channel closing device.

Background

The minimally invasive percutaneous nephrolithotomy is commonly called as "hole-making and stone-taking", the stone-taking method only needs to make a skin incision smaller than 1cm at the back of the waist, a slender puncture needle is used for directly entering the kidney from the incision, the kidney is expanded, an operation channel sheath is placed, the nephroscope is placed, an ultrasonic ballistic lithotripter or neodymium laser is used for breaking up the stone and taking the stone, the wound is small, the stone-taking pain of a patient is relieved, the patient can get out of the bed to move the bed the next day after the operation, and the minimally invasive percutaneous nephrolithotripter is safe and effective.

Percutaneous nephroscope technology (PCNL) is an important part of endoluminal urological surgery, and is a modern main treatment method together with ureteroscope technology and extracorporeal shock wave lithotripsy in the aspect of treating upper urinary tract stones, so that the surgical treatment mode of traditional open surgery is thoroughly changed. Through comprehensive treatment methods such as percutaneous nephrolithotomy, ureteroscope lithotomy, in-vitro shock wave lithotripsy and the like, more than 90% of kidney stones can be removed from open surgery. Minimally invasive percutaneous nephroscope technology (MPCNL) is an improvement over traditional percutaneous nephroscope methods, which reduces the diameter of the nephropuncture fistulization channel and uses ureteroscope or small-size nephroscope to remove stones. However, many medical instruments are used in the percutaneous nephroscope operation, the percutaneous nephroscope puncture sheath is one of the main instruments, the percutaneous nephroscope puncture sheath is required to be inserted into a human body for puncture and expansion in the percutaneous nephroscope operation, and the operation method and the treatment range are greatly developed and expanded and the operation method is more minimally invasive along with the improvement of clinical practice technology and instruments in recent years.

The occlusion effect of conventional devices may be undesirable, especially in cases where the seal between the occluding member and the renal passageway is incomplete. This can lead to an overflow of urine or blood, increasing the risk of complications during or after surgery. Conventional devices may present certain complications in operation, particularly when the catheter is not guided and positioned accurately. This may lead to prolonged procedure time, increased intraoperative bleeding and high operator technical requirements.

Disclosure of utility model

The technical problem to be solved by the utility model is that the device with the existing structure is complex to operate.

The utility model provides a renal channel closing device, which comprises a guide piece, a blocking piece and a pushing piece, wherein the distal end of the guide piece is suitable for being inserted into a focus; the plugging piece is sleeved on the guide piece and slides along the guide piece under the action of external force; the pushing piece is sleeved on the guide piece, one end of the pushing piece is connected with the plugging piece, the other end of the pushing piece is suitable for being connected with external driving equipment, and the pushing piece slides along the guide piece and drives the plugging piece to reach a preset position under the driving of the outside.

Optionally, the renal channel closing device further comprises an operation sheath, wherein the operation sheath is covered on the peripheries of the blocking piece and the pushing piece and is suitable for forming a channel penetrating the guiding piece, the blocking piece and the pushing piece.

Optionally, in the above renal channel closing device, the pushing member is provided with a plurality of scale marks, and the scale marks are suitable for indicating the pushing depth of the closing member in the operating sheath.

Optionally, in the renal channel sealing device, the sealing element is disposed at a distal end of the pushing element and is movably connected with the pushing element.

Optionally, in the kidney channel closing device, the cross section of the blocking member and the pushing member is circular.

Optionally, the kidney channel sealing device is a sealing piece made of blood material.

Optionally, the kidney channel closing device is a guide made of medical plastic and/or metal.

Optionally, in the renal channel sealing device, the blocking member and/or the pushing member is in clearance fit with the guiding member.

Optionally, in the above renal channel sealing device, the blocking member and/or the pushing member is in clearance fit with the operating sheath.

The technical scheme provided by the utility model has the following advantages:

1. The utility model provides a kidney channel closing device, which comprises a guide piece, a blocking piece and a pushing piece, wherein the distal end of the guide piece is suitable for being inserted into a focus; the plugging piece is sleeved on the guide piece and slides along the guide piece under the action of external force; the pushing piece is sleeved on the guide piece, one end of the pushing piece is connected with the plugging piece, the other end of the pushing piece is suitable for being connected with external driving equipment, and the pushing piece slides along the guide piece and drives the plugging piece to reach a preset position under the driving of the outside.

The kidney channel sealing device with the structure is characterized in that the guide piece can accurately guide the device to reach kidney focus. Such precise guidance helps to reduce the risk of handling and ensures the correct position of the device. The plugging piece can slide along the guiding piece under the action of external force, so that the renal channel can be plugged. The controllable plug can effectively prevent urine or other substances from passing through the kidney channel, thereby achieving the purpose of treatment or diagnosis. The pushing piece can be connected with external driving equipment, and the pushing piece is driven to slide along the guide piece through external driving force. The external driving design makes the operation more convenient and provides better operation control. By driving the pushing member, the blocking member can be accurately pushed to a preset position. Such precise position control helps to ensure accuracy and stability of the occluding component and to enhance the therapeutic or diagnostic effect.

2. The kidney channel closing device provided by the utility model further comprises an operation sheath, wherein the operation sheath is covered on the peripheries of the plugging piece and the pushing piece and is suitable for forming a channel penetrating the guiding piece, the plugging piece and the pushing piece.

The kidney channel closing device with the structure is characterized in that the operation sheath and the operation sheath cover are designed to facilitate the operation. The operating sheath can form channels of the guide piece, the blocking piece and the pushing piece, thereby providing convenience for the penetrating of the device. The operation sheath cover can protect the plugging piece and the pushing piece, so that risks in the operation process are reduced. The presence of an operating sheath can increase the safety of the device. It provides an additional protective layer reducing the risk of mishandling or accidental injury to the closure and pusher. The configuration of the operating sheath and operating sheath cap may increase the stability of the overall device. They provide additional support and securement, reducing shifting or rocking of the device during operation. The operating sheath and operating sheath cover may prevent contaminants from entering the device passageway. They act as barriers, maintaining the cleanliness and sterility of the device, reducing the risk of infection.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing the overall structure of a renal channel closing device provided in an embodiment of the present utility model;

FIG. 2 is a schematic view of a removal operating sheath of a renal channel closing device provided in an embodiment of the present utility model;

FIG. 3 is a schematic side view of a sheath for removing a renal channel closing device provided in an embodiment of the present utility model;

FIG. 4 is a schematic illustration of the operation of a renal channel closing device provided in an embodiment of the present utility model;

FIG. 5 is a schematic illustration of the operation of a renal channel closing device provided in an embodiment of the present utility model;

FIG. 6 is a schematic illustration of the operation of a renal channel closing device provided in an embodiment of the present utility model;

Reference numerals illustrate:

1-a guide;

2-a blocking member;

3-pushing member;

4-operating sheath;

5-graduation line.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. 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 noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Examples

As shown in fig. 1 to 3, the present embodiment provides a renal channel closing device including a guide member 1, a blocking member 2, and a pushing member 3, the distal end of the guide member 1 being adapted to be inserted into a lesion; the plugging piece 2 is sleeved on the guide piece 1 and slides along the guide piece 1 under the action of external force; the pushing piece 3 is sleeved on the guide piece 1, one end of the pushing piece 3 is connected with the plugging piece 2, the other end of the pushing piece 3 is suitable for being connected with external driving equipment, and the pushing piece 3 slides along the guide piece 1 and drives the plugging piece 2 to reach a preset position under the driving of the outside. The guide 1 is designed to accurately guide the device to the renal focus. Such precise guidance helps to reduce the risk of handling and ensures the correct position of the device. The plugging piece 2 can slide along the guiding piece 1 under the action of external force, so as to realize plugging of the kidney channel. The controllable plug can effectively prevent urine or other substances from passing through the kidney channel, thereby achieving the purpose of treatment or diagnosis. The pushing member 3 may be connected to an external driving device, and the pushing member 3 is driven to slide along the guide member 1 by an external driving force. The external driving design makes the operation more convenient and provides better operation control. By driving the pushing element 3, the closure element 2 can be pushed precisely into the desired position. This precise position control helps to ensure the accuracy and stability of the occluding component 2 and to improve the therapeutic or diagnostic effect.

As shown in fig. 1, the renal channel sealing device provided by the embodiment of the present application further includes an operating sheath 4, where the operating sheath 4 is covered on the peripheries of the blocking member 2 and the pushing member 3, and is suitable for forming a channel penetrating the guiding member 1, the blocking member 2 and the pushing member 3. The operation is facilitated by the design of the operating sheath 4 and the operating sheath 4 cover. The operating sheath 4 can form channels for the guide element 1, the blocking element 2 and the pushing element 3, which provides convenience for the threading of the device. The operating sheath 4 covers the blocking piece 2 and the pushing piece 3, so that risks in the operating process are reduced. The presence of the operating sheath 4 shield may increase the safety of the device. It provides an additional protective layer reducing the risk of mishandling or accidental injury to the closure member 2 and the pusher member 3. The construction of the operating sheath 4 and the operating sheath 4 cover may increase the stability of the overall device. They provide additional support and securement, reducing shifting or rocking of the device during operation. The operating sheath 4 and operating sheath 4 cover may prevent contaminants from entering the device passageway. They act as barriers, maintaining the cleanliness and sterility of the device, reducing the risk of infection.

As shown in fig. 1 to 3, in the renal channel sealing device provided by the embodiment of the present application, the pushing member 3 is provided with a plurality of graduation marks 5, and the graduation marks 5 are suitable for indicating the pushing depth of the blocking member 2 in the operating sheath 4. The presence of the graduation marks 5 enables the operator to know precisely the depth of advancement of the closure member 2 within the operating sheath 4. By reading the graduation marks 5, the operator can monitor the position of the blocking member 2 in real time, ensuring that it reaches a preset pushing depth. The graduation marks 5 provide a precise reference standard, so that an operator can precisely control the push depth of the closure element 2. This helps to ensure accurate placement of the occluding component 2 and improves the therapeutic or diagnostic effect. The visual nature of the graduation marks 5 enables the operator to intuitively determine the position and depth of push of the closure element 2. The visual guidance is helpful to reduce operation risk and improve operation accuracy and safety.

As shown in fig. 1 to 3, the renal channel sealing device provided by the embodiment of the present application, the sealing member 2 is disposed at the distal end of the pushing member 3 and is movably connected with the pushing member 3. The plugging piece 2 is arranged at the distal end of the pushing piece 3 and is movably connected with the pushing piece, so that the whole device is more compact in structure. This compact design helps to reduce the footprint of the device, making it easier to use in a narrow operating environment. The blocking piece 2 is movably connected with the pushing piece 3, so that an operator can control the position and the movement of the blocking piece 2 through the movement of the pushing piece 3. The operation flexibility enables the operation of the device to be more convenient, and can adapt to the requirements of different cases. Since the occluding component 2 is disposed at the distal end of the pusher 3, the resistance of the device during threading and pushing is relatively small. This helps to reduce the difficulty of operation and discomfort of the patient, and improves the smoothness and success rate of operation. The articulated connection of the pusher 3 enables the operator to control the movement and position of the closure member 2 more accurately. The plugging piece 2 and the pushing piece 3 are movably connected, and the pushing piece 3 and the plugging piece 2 can be separated after the position of the plugging piece 2 is accurately adjusted by pushing of the pushing piece 3, so that a preset plugging effect is achieved.

As shown in fig. 2 and 3, the cross sections of the plugging member 2 and the pushing member 3 of the kidney channel plugging device provided by the embodiment of the present application are circular. The circular cross-section makes the structure of the closure member 2 and the pusher member 3 uniform and the stress distribution of the respective portions relatively uniform. This helps to enhance the stability and durability of the device, reducing possible structural damage or damage. The circular cross-section is easier to clean and sterilize than other shapes. No edges or dead angles exist, the probability of breeding dirt or bacteria is reduced, and the sanitation of the device is improved. The round section closure member 2 and the push member 3 are relatively easy to center and dock during assembly. Compared with other shapes, the circular cross section reduces the situation of asymmetry or mismatch possibly occurring during assembly, and simplifies the operation flow. The absence of sharp edges or angles of the circular cross-section of the occluding member 2 and pusher member 3 reduces the risk of damage to surrounding tissue or blood vessels. This helps to reduce the occurrence of intraoperative complications and improves patient safety and comfort.

The embodiment of the application provides a renal channel sealing device, which is characterized in that a sealing piece 2 is made of a blood stopping material and a sealing piece 2 is made of a blood stopping material. The plugging piece 2 is made of hemostatic material, so that the hemostatic function can be effectively realized. In the process of closing the kidney channel, the plugging piece 2 can be tightly attached to the urethra or the wall of the catheter, so that the overflow of blood is prevented, and the bleeding condition during or after operation is reduced. Hemostatic materials are generally biocompatible, compatible with human tissue, and have reduced irritation or allergic response to the patient. This helps to reduce the occurrence of postoperative complications and improve the safety and success rate of surgical treatment. Some hemostatic materials are absorbable, i.e., they are absorbed or metabolized by human tissue over time. This means that no additional surgery or manipulation is required to remove the closure member 2, reducing the discomfort to the patient and the risk of secondary surgery. The hemostatic material is relatively abundant in choice, and suitable materials can be selected according to specific requirements. Common hemostatic materials include biological glue, synthetic polymers and the like, and can meet the requirements of different operations and patients according to different performances and characteristics. In particular, in this embodiment, the hemostatic material may be made of an absorbable material such as gelatin sponge, bovine Achilles tendon protein sponge, or the like.

The kidney channel closing device provided by the embodiment of the application is characterized in that the guide piece 1 is a guide piece 1 made of medical plastic and/or metal. The metal material has high strength and rigidity, and can provide sufficient support and stability. This helps the guide 1 to maintain shape and structural stability during operation, ensuring that the device is able to accurately guide the closure member 2 to the target location. Metallic materials generally have good durability and corrosion resistance and can withstand prolonged use and sterilization. This enables the guide 1 to withstand frequent handling and cleaning, extending its service life. Medical plastics often have good transparency or dyeability and help provide good visibility. This allows the operator to clearly observe the position and guidance of the guide 1 in the renal channel, improving the accuracy and safety of the procedure. Medical plastics and metals generally have good biocompatibility, are compatible with human tissue and reduce the risk of allergic or irritant reactions. This helps reduce the occurrence of postoperative complications and improves the safety of surgical treatment. The medical plastic and the metal material have better processing performance and can be customized and processed according to the needs. This allows for a more flexible design and manufacture of the guide 1, which can be adapted to different surgical and patient needs.

The kidney channel closing device provided by the embodiment of the application has the advantages that the closing piece 2 and/or the pushing piece 3 are in clearance fit with the guide piece 1. In this embodiment, the blocking member 2 is in clearance fit with the operating sheath 4, and the pushing member 3 is in clearance fit with the guiding member 1.

The embodiment of the application provides the kidney channel closing device, and the closing piece 2 and/or the pushing piece 3 are in clearance fit with the operating sheath 4. In this embodiment, the plugging member 2 is in clearance fit with the operating sheath 4, and the pushing member 3 is in clearance fit with the operating sheath 4.

The clearance fit provides better guidance and stability, ensuring accurate guidance and positioning of the device during operation. By means of a clearance fit between the guide element 1 and the operating sheath 4, the blocking element 2 and the pushing element 3 can be moved on the correct track to achieve the desired blocking effect.

As shown in fig. 1 and fig. 4 to fig. 6, the renal channel closing device provided by the embodiment of the present application comprises the following specific operation steps, when the percutaneous nephroscope operation is completed, connecting the guide member 1, the blocking member 2 and the pushing member 3, placing the connected connection between the guide member 1 and the blocking member 2 into the percutaneous nephroscope operation sheath 4, fixing the guide member 1, and taking out the operation sheath 4; fixing the pushing piece 3 and removing the guide piece 1; then, the pusher 3 is taken out. Thus, the plugging piece 2 made of absorbable hemostatic material can be left at the position of the kidney channel to seal the operation channel, thereby playing the roles of stopping bleeding, preventing urine from leaking and preventing infection from spreading. The absorbable material is generally absorbed by the human body for about 1 week.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (9)

1. A renal channel closing device, comprising:

A guide (1), the distal end of the guide (1) being adapted to be inserted into a lesion;

The blocking piece (2) is sleeved on the guide piece (1) and slides along the guide piece (1) under the action of external force;

The pushing piece (3), pushing piece (3) cover is established on guide (1), the one end of pushing piece (3) with shutoff piece (2) are connected, the other end of pushing piece (3) is suitable for connecting external driving device, under external drive, pushing piece (3) are followed guide (1) slip and drive shutoff piece (2) reach the position of predetermineeing.

2. The renal channel closing device according to claim 1, further comprising an operating sheath (4), said operating sheath (4) being housed around said blocking member (2) and pushing member (3) and being adapted to form a channel passing through said guiding member (1), blocking member (2) and pushing member (3).

3. Renal channel closing device according to claim 2, characterized in that said pushing element (3) is provided with graduation marks (5), said graduation marks (5) being adapted to indicate the pushing depth of said blocking element (2) within said operating sheath (4).

4. A renal channel closing device according to claim 3, characterized in that the blocking element (2) is arranged at the distal end of the pushing element (3) in movable connection with the pushing element (3).

5. The renal channel closing device according to claim 4, characterized in that the blocking element (2) and the pushing element (3) are circular in cross section.

6. The renal channel closing device according to any one of claims 1 to 5, characterized in that the blocking member (2) is a blocking member (2) made of a blood stopping material.

7. The renal channel closing device according to claim 6, characterized in that the guide (1) is a guide (1) made of medical plastic and/or metal.

8. The renal channel closing device according to any one of claims 1 to 5, characterized in that the blocking element (2) and/or the pushing element (3) are in a clearance fit with the guide element (1).

9. The renal channel closing device according to any one of claims 2 to 5, characterized in that the blocking element (2) and/or the pushing element (3) are in a clearance fit with the operating sheath (4).