A new type of direct vision gallbladder stone forceps
By designing bile duct stone retrieval forceps with cross-shaped configurations and equipped with miniature cameras, the problem of high blindness in existing bile duct stone retrieval techniques has been solved. This enables direct visualization and accurate positioning of stones within the bile duct, reducing surgical difficulty and the risk of stone residue.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE SECOND AFFILIATED HOSPITAL OF GUILIN MEDICAL COLLEGE
- Filing Date
- 2025-04-15
- Publication Date
- 2026-07-14
AI Technical Summary
Existing bile duct stone retrieval forceps make it difficult to clearly observe the stone removal site during operation, resulting in blindness in the stone removal process and increasing the difficulty of the surgery.
A novel direct-vision bile duct stone removal forceps was designed, employing a cross-arranged first and second forceps, equipped with a miniature camera and drainage port, enabling real-time observation of the internal condition of the bile duct. The design of the stone removal groove and blocking components improves the accuracy and success rate of stone removal.
It enables direct visualization and accurate localization of stones within the bile duct, reducing the difficulty of surgery, minimizing the risk of residual stones, and increasing the success rate of stone removal.
Smart Images
Figure CN224484097U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical equipment technical field especially relates to a novel direct vision gallbladder duct calculus removing forceps. BACKGROUND
[0002] In the treatment of biliary tract disease, gallstone is a common disease, and the imbalance of the proportion of cholesterols, bile pigments, calcium salts and other components in bile is an important reason for the formation of gallstones. For example, when the cholesterols content in bile is too high, it exceeds the solubility of bile acids and phospholipids, and cholesterols are easy to crystallize and precipitate, forming cholesterols stones. Similarly, abnormal metabolism of bile pigments, bilirubin and calcium can also precipitate to form bilirubin calcium and bile pigment stones.
[0003] At present, there are various methods for removing gallstones in clinical practice, among which calculus removing forceps is one of the important means. However, the existing calculus removing forceps has many problems in practical application. For example, when the traditional calculus removing forceps is operated, the operator cannot directly and clearly observe the situation of the calculus removing part because it does not have good direct vision function. The operator mainly relies on experience and indirect images provided by other auxiliary equipment to operate, which leads to a certain blindness in the calculus removing process, and it is difficult for the operator to accurately judge the position of the calculus and the relative position relationship between the calculus removing forceps and the calculus, thereby increasing the difficulty of the operation. UTILITY MODEL CONTENT
[0004] The utility model embodiment provides a novel calculus removing forceps under direct vision to solve the above-mentioned technical problems.
[0005] The utility model embodiment adopts the following technical scheme: a calculus removing forceps; the calculus removing forceps is composed of a first forceps body and a second forceps body arranged in cross, the mutual cross part of the first forceps body and the second forceps body is rotationally connected, so that after the control of the mutual folding of the end part of the first forceps body and the second forceps body, the first forceps body and the second forceps body can be driven to mutually fold the front end part; the end of the first forceps body and the second forceps body is provided with a holding ring for the operator to put fingers into to hold and control the whole calculus removing forceps, and the holding ring and the corresponding first forceps body and second forceps body are integrally designed; the front end of the first forceps body and the second forceps body is provided with a calculus removing part which can clamp and remove the calculus in the biliary tract; the calculus removing part at the front end of the first forceps body and the second forceps body is respectively provided with a drainage port and a miniature camera.
[0006] Preferably, the calculus removing part is a block structure of a cuboid as a whole, and a calculus removing groove in a horizontal state is arranged on the calculus removing part, which penetrates the inside and outside of the calculus removing part.
[0007] Preferably, the outer side of the first and second forceps and the lithotripsy component is provided with a circular arc surface, and the inner side of the lithotripsy component is provided with a flat surface, so that the lithotripsy components at the front ends of the first and second forceps can form a cylindrical structure after merging with each other, and the front end of each lithotripsy component is provided with a circular arc surface.
[0008] Preferably, the middle section of the lithotripsy groove is rectangular, and the two end sections of the lithotripsy groove are semicircular, so that the overall shape of the lithotripsy groove is similar to that of a runway-type column.
[0009] Preferably, a blocking piece is arranged around the inner wall of the lithotripsy groove, and the outer edge of the blocking piece is fixedly connected to the inner wall of the lithotripsy groove, and the blocking piece is tightly attached to the outer side of the lithotripsy component in the lithotripsy groove.
[0010] Preferably, a through groove is arranged in the middle of the blocking piece, so that the overall shape of the blocking piece matches the shape of the lithotripsy groove.
[0011] Preferably, the drainage port extends from the front end of the lithotripsy component to the holding ring at the end of the first forceps, and penetrates out of the end of the holding ring, so that the lithotripsy component, the corresponding first forceps and the drainage port inside the holding ring are in communication with each other and form a channel for gas and liquid flow, and a drainage pipeline is arranged in the drainage port at the end of the holding ring, and the end of the drainage pipeline can be in communication with the working port of the flushing device with suction function; the miniature camera is arranged at the front end of the lithotripsy component on the second forceps, and a lighting lamp matched with the miniature camera is arranged on one side of the lithotripsy component.
[0012] The above-mentioned at least one technical scheme adopted by the embodiment of the utility model can achieve the following beneficial effects:
[0013] When the utility model is used, the lighting lamp can be used to illuminate the inside of the biliary tract, and provide a light source for the camera end of the miniature camera. Since there is secretion inside the biliary tract, when taking out the stones, the liquid injection function of the flushing device can be started to inject flushing liquid into the stone area, so as to flush the part, make the secretion on the surface of the stone separate, and then the flushing liquid mixed with the secretion is sucked out in time.
[0014] Secondly, during the stone taking process, when the two lithotripsy components are moved close to each other to clamp the stones, the stones can be transferred to the lithotripsy groove area along the inner side of the two lithotripsy components, and are wrapped by the lithotripsy groove area on the lithotripsy component, so that the stones can be better clamped and taken out. BRIEF DESCRIPTION OF DRAWINGS
[0015] The drawings described herein are intended to provide further understanding of the present application, form a part of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:
[0016] Figure 1 A three-dimensional structure diagram of the present application Figure 1 ;
[0017] Figure 2 A three-dimensional structure diagram of the present application Figure 2 ;
[0018] Figure 3 A structure diagram of a stone removing component in the present application Figure 1 ;
[0019] Figure 4 A structure diagram of a stone removing component in the present application Figure 2 ;
[0020] Figure 5 A structure diagram of a stone removing component in the present application Figure 3 ;
[0021] Figure 6 A structure diagram of a stone removing groove in the present application
[0022] Figure 7 A combined state diagram of the stone removing component on the first and second jaw bodies.
[0023] Reference signs
[0024] Stone removing forceps 1, first jaw body 11, second jaw body 12, holding ring 13
[0025] Stone removing component 2, stone removing groove 21, flat surface 22, rectangle 23, semicircle 24, blocking piece 25, through groove 26
[0026] Drainage port 3, drainage pipeline 31
[0027] Miniature camera 4, illuminating lamp 41 DETAILED DESCRIPTION
[0028] To make the purpose, technical scheme and advantages of the present application more clear, the present application technical scheme will be described clearly and completely below by combining the present application specific embodiments and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0029] The technical solutions of the embodiments of the utility model are described in detail below with reference to the drawings.
[0030] The utility model discloses an under novel direct vision gallbladder duct calculus removing forceps, including calculus removing forceps 1, the calculus removing forceps 1 is by the first forceps body 11 and the second forceps body 12 of cross arrangement, the first forceps body 11 and the second forceps body 12 mutual cross parts are rotationally connected, make in control first forceps body 11 and second forceps body 12 end position mutual after folding back can drive first forceps body 11 and the mutual folding of second forceps body 12 front end part, the end of first forceps body 11 and second forceps body 12 is provided with the holding ring 13 that the operator's finger is inserted and held to control the whole calculus removing forceps 1, the holding ring 13 and respective corresponding first forceps body 11 and second forceps body 12 are integral type design, the front end of first forceps body 11 and second forceps body 12 is provided with the calculus removing part 2 that can take the calculus in gallbladder duct and is symmetrical, the calculus removing part 2 on the front end of first forceps body 11 and second forceps body 12 is provided with drainage port 3 and micro video camera 4 respectively,
[0031] In use, the operator can insert the fingers into the holding ring 13 to hold and control the end parts of the first forceps body 11 and the second forceps body 12, when the two holding rings 13 at the ends of the first forceps body 11 and the second forceps body 12 are separated to the two sides respectively, the first forceps body 11 and the second forceps body 12 can be staggered in a cross shape, and the two calculus removing parts 2 at the front ends are staggered and unfolded, so as to clamp the calculus in the gallbladder duct, wherein the drainage port 3 provided on the calculus removing part 2 can be connected with the working end of the flushing equipment with the negative pressure suction function, during the calculus removing process, the micro video camera 4 on the calculus removing part 2 can take real-time images of the inside of the gallbladder duct, so as to realize the direct vision condition of the gallbladder duct to the inside of the gallbladder duct, so that the operator can observe the inside of the gallbladder duct according to the display matched with the micro video camera 4, so as to judge the specific position of the calculus in the gallbladder duct, so that the operator can accurately judge the position of the calculus and remove the calculus by using the clamping function of the two calculus removing parts 2, thereby effectively reducing the operation difficulty of the whole calculus removing surgery.
[0032] In further preferred embodiments, referring to Figs. 1-4, Figure 4 and 5 As shown, the calculus removing part 2 is in the shape of a cuboid, and a calculus removing groove 21 in a horizontal state is arranged on the calculus removing part 2 and penetrates through the inside and outside of the calculus removing part 2; the outside of the calculus removing part 2 on the first forceps body 11 and the second forceps body 12 is in the shape of a circular arc, and the inside of the calculus removing part 2 is in the shape of a flat surface 22, so that the calculus removing part 2 at the front end of the first forceps body 11 and the calculus removing part 2 at the front end of the second forceps body 12 can form a cylindrical structure after being combined with each other, and the front end of each calculus removing part 2 is in the shape of a circular arc;
[0033] In current clinical surgery, the design of the jaws of existing stone retrieval forceps is not ideal for stone removal. For some stones that are brittle or irregularly shaped, the stones are prone to breakage and falling off during the grasping process, making it difficult to remove the stones completely. This increases the risk of stone residue, which may lead to postoperative complications and affect the patient's recovery.
[0034] Therefore, this patent application provides a stone-removing groove 21 on the stone-removing component 2, so that when the inner sides of the two stone-removing components 2 are in contact with the stone, the stone-removing groove 21 area on the stone-removing component 2 allows the two stone-removing components 2 to come together to clamp the stone, and the stone can be transferred into the stone-removing groove 21 area as the inner sides of the two stone-removing components 2 are covered.
[0035] When dealing with brittle or irregularly shaped stones, the flat design of the inner side of the tip of the existing stone tongs 1 makes it very easy for brittle stones to break when grasped by the tongs 1. Therefore...
[0036] The stone retrieval groove 21 provided on the inner side of the stone retrieval component 2 in this patent application allows the stone to be placed and serves as a temporary storage area, thereby preventing the stone from being crushed due to compression in areas of the stone retrieval component 2 where the stone retrieval groove 21 is not provided, which would result in broken stone residue remaining in the bile duct and affect the entire stone retrieval process.
[0037] The inner surface of the stone-removing component 2 is a flat surface 22. After the two stone-removing components 2 have completed the removal of the stone, they can adhere to each other and completely merge together. This allows the stone-removing groove 21 area on the two stone-removing components 2 to be used for stone placement. As the stone is placed into the stone-removing groove 21, the inner surfaces of the two merged stone-removing components 2 can block the edge of the stone-removing groove 21, thereby encapsulating the stone in the stone-removing groove 21 and preventing the stone from falling out of the stone-removing groove 21 when it is removed.
[0038] Secondly, the outer surfaces of the stone-removing components 2 on the first clamp body 11 and the second clamp body 12 are both arc-shaped, and the front end of each stone-removing component 2 is also arc-shaped. This allows the stone-removing components 2 at the front end of the first clamp body 11 and the stone-removing components 2 at the front end of the second clamp body 12 to form a cylindrical structure. The resulting cylindrical structure has a rounded shape and no discontinuous protrusions, which makes it easier to perform surgical operations in the bile duct.
[0039] In a further preferred embodiment, refer to the appendix. Figures 4 to 6As shown, the middle section of the stone retrieval groove 21 is rectangular 23, and the two ends of the stone retrieval groove 21 are semi-circular 24, making the stone retrieval groove 21 resemble a racetrack-shaped column. The shape and structure of the jaws on the existing stone retrieval pliers 1 are difficult to adapt to stones of various sizes and shapes. If the inner gripping surface of the stone retrieval pliers 1 is a flat structure, it can only grip the outer surface of the stone. When gripping some irregularly shaped stones, it is very easy for the stone to fall off the jaws of the stone retrieval pliers 1. This patent application designs the stone retrieval groove 21 as a racetrack-shaped column structure, so that the two ends of the stone retrieval groove 21 can correspond to the front arc surface of the stone retrieval component 2, and maximize the space for the stone retrieval groove 21 inside the stone retrieval component 2.
[0040] In a further preferred embodiment, refer to the appendix. Figure 4 As shown, a blocking member 25 is provided around the inner wall of the stone-collecting groove 21 on the stone-collecting component 2. The outer edge of the blocking member 25 is fixedly connected to the inner wall of the stone-collecting groove 21 on the stone-collecting component 2. The blocking member 25 is tightly attached to the outer side of the stone-collecting component 2 inside the stone-collecting groove 21, so that the blocking member 25 can form a closed state for the part of the stone-collecting groove 21 near the outer side of the stone-collecting component 2.
[0041] The blocking component 25 can block the part of the stone retrieval groove 21 near the outside of the stone retrieval component 2, so that after the two stone retrieval components 2 are combined, the space of the stone retrieval groove 21 inside is not exposed, which can be used to pick up some stone fragments, thereby preventing stone fragments from leaking out of the stone retrieval groove 21 on the stone retrieval component 2.
[0042] Secondly, refer to the appendix Figure 5 and 6 As shown, a through groove 26 can be provided in the middle of the blocking member 25 so that the overall shape of the blocking member 25 matches the shape of the stone retrieval groove 21. When picking up some stones that are not easily broken and have sharp points on the surface, the through groove 26 in the middle of the blocking member 25 can allow the sharp points on the stones in the stone retrieval groove 21 to be stuck in the through groove 26, so as to better pick up and fix such stones, and thus facilitate the smooth removal of stones.
[0043] In a further preferred embodiment, refer to the appendix. Figure 1 and 3As shown, the drainage port 3 extends from the front end of the stone-removing component 2 through the first clamp body 11 to the end holding ring 13, and exits from the end of the holding ring 13, so that the stone-removing component 2, the corresponding first clamp body 11, and the drainage port 3 inside the holding ring 13 are interconnected to form a channel for airflow and liquid flow. The drainage port 3 at the end of the holding ring 13 is connected to a drainage pipe 31, the end of which can be connected to the working port of a rinsing device with suction function. The miniature camera 4 is located at the front end of the stone-removing component 2 on the second clamp body 12, and a lighting lamp 41 matching the miniature camera 4 is provided on one side of the stone-removing component 2. The miniature camera 4 is equipped with a matching display and power system. The power cords of the miniature camera 4 and the lighting lamp 41 exit from the inside of the stone-removing component 2 through the end of the second clamp body 12 and the holding ring 13 and are electrically connected to the matching display and power system.
[0044] During stone removal, the interior of the bile duct can be illuminated by the lighting lamp 41, which also provides a light source for the camera end of the miniature camera 4. Since there is secretion inside the bile duct, the flushing fluid can be injected into the stone area by activating the flushing device during stone removal. This flushes the area, removes secretions from the stone surface, and allows the stone to be unobstructed and better captured by the miniature camera 4, enabling the operator to accurately determine the location of the stone. After flushing, the negative pressure suction function of the flushing device can be activated to promptly remove the flushing fluid mixed with secretions, thereby improving the cleanliness of the stone removal area within the bile duct.
[0045] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A novel type of forceps for direct visualization of bile duct stones, characterized in that, Including stone tongs (1); The stone-removing pliers (1) consists of a first pliers (11) and a second pliers (12) arranged in a cross configuration. The cross-section of the first pliers (11) and the second pliers (12) is rotatably connected, so that when the ends of the first pliers (11) and the second pliers (12) are controlled to close together, the front ends of the first pliers (11) and the second pliers (12) can be brought together. The first clamp body (11) and the second clamp body (12) are provided with a gripping ring (13) at the end for the operator to insert his / her fingers to hold and control the entire stone retrieval forceps (1). The gripping ring (13) is integrated with the corresponding first clamp body (11) and second clamp body (12). The first clamp (11) and the second clamp (12) are provided with symmetrical stone-removing components (2) at their front ends, which can be used to remove stones in the bile duct; The stone-retrieving components (2) at the front ends of the first clamp (11) and the second clamp (12) are respectively provided with a drainage port (3) and a miniature camera (4).
2. The novel direct-vision bile duct stone removal forceps according to claim 1, characterized in that, The stone-collecting component (2) is a rectangular block structure. A horizontally positioned stone-collecting groove (21) is provided on the stone-collecting component (2), and the stone-collecting groove (21) runs through the inner and outer sides of the stone-collecting component (2).
3. The novel direct-vision bile duct stone removal forceps according to claim 1, characterized in that, The outer surfaces of the stone-removing components (2) on the first clamp body (11) and the second clamp body (12) are both arc surfaces, and the inner surfaces of the stone-removing components (2) are flat surfaces (22), so that the stone-removing components (2) at the front end of the first clamp body (11) and the stone-removing components (2) at the front end of the second clamp body (12) can form a cylindrical structure after they are combined. The front end of each stone-removing component (2) is an arc surface.
4. A novel direct-vision bile duct stone removal forceps according to claim 2, characterized in that, The middle section of the stone trough (21) is rectangular (23), and the two ends of the stone trough (21) are semi-circular (24), making the stone trough (21) resemble a racetrack-shaped column as a whole.
5. A novel direct-vision bile duct stone removal forceps according to claim 2, characterized in that, A blocking member (25) is provided around the inner wall of the stone-collecting groove (21) on the stone-collecting component (2). The outer edge of the blocking member (25) is fixedly connected to the inner wall of the stone-collecting groove (21) on the stone-collecting component (2). The blocking member (25) is closely attached to the outer side of the stone-collecting component (2) inside the stone-collecting groove (21), so that the blocking member (25) can form a closed state on the part of the stone-collecting groove (21) near the outer side of the stone-collecting component (2).
6. A novel direct-vision bile duct stone removal forceps according to claim 5, characterized in that, The blocking member (25) has a through groove (26) in the middle, so that the overall shape of the blocking member (25) matches the shape of the stone trough (21).
7. A novel direct-vision bile duct stone removal forceps according to claim 1, characterized in that, The drainage port (3) extends from the front end of the stone-removing component (2) through the first clamp (11) to the end holding ring (13), and passes out from the end of the holding ring (13), so that the stone-removing component (2) and the corresponding first clamp (11) and the drainage port (3) inside the holding ring (13) are interconnected and form a channel for airflow and liquid flow. The drainage port (3) at the end of the holding ring (13) is connected to a drainage pipe (31), and the end of the drainage pipe (31) can be connected to the working port of a rinsing device with suction function. The miniature camera (4) is located at the front end of the stone-retrieving component (2) on the second clamp (12), and a lighting lamp (41) matching the miniature camera (4) is provided on one side of the stone-retrieving component (2).