Auxiliary device for removing calculus
By designing a stone extraction auxiliary device including folded steel wire and adjustment components, the difficulty of operating in traditional stone extraction net baskets in small bile ducts and large angle bile ducts is solved, and a more efficient and safer bile duct surgery is achieved.
Patent Information
- Application Number
- CN202510299114.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2025-06-20
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional stone net baskets are difficult to enter and manipulate when facing small and large angled bile ducts, and the steel wire is easy to cut and tear the bile ducts, resulting in low surgical efficiency and success rate, and causing additional damage and risks to the patient.
An auxiliary equipment for stone extraction is designed, including a hose, a limiting column and a split mesh basket mechanism. The mesh basket mechanism consists of a first steel wire and a second steel wire of a folded structure. Through the cooperation of the soft shaft and the adjustment component, the angle of the steel wire can be flexibly adjusted to adapt to the shape of the bile duct and the position of the stone, and quickly change the angle to lower the stone when needed.
The device enables easier access to small and larger angled bile ducts, improves the efficiency and success rate of stone extraction, reduces surgical time and patient pain and risk, and avoids bile duct cutting and tearing through protective rings.
Smart Images
Figure CN120168050A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical surgical instruments, and particularly to an auxiliary device for stone extraction. Background Art
[0002] In the biliary lithotomy surgery in hepatobiliary surgery, the traditional stone extraction basket has many obvious defects.
[0003] Due to the limitation of its own structure, the stone extraction basket cannot bend, which makes it difficult for the choledochoscope to enter and the stone extraction basket to be manipulated into when facing small and large-angle bile ducts, seriously affecting the efficiency and success rate of stone extraction.
[0004] The steel wires of the stone extraction basket are thin and sharp, and are extremely easy to cut and tear the bile duct during the dragging and pulling process, bringing additional harm and risks to the patient. When the stone extraction basket catches a large stone and it is found that the stone and the basket cannot pass through the sinus tract or sheath, it is very difficult to loosen the basket to release the stone. Even if the basket is repeatedly contracted and finally the stone is loosened, it will consume a lot of time and delay the surgical process.
[0005] In summary, these disadvantages of the existing stone extraction basket seriously restrict the effect and safety of the biliary lithotomy surgery, and there is an urgent need for a new stone extraction auxiliary device to solve these problems. Summary of the Invention
[0006] In order to overcome the existing problems, the embodiment of the present application provides an auxiliary device for stone extraction. The device includes a hose and a limit post located at the top of the hose. A basket mechanism is provided inside the hose and the limit post. The basket mechanism is composed of a basket assembly and an adjustment assembly, and the two are of a split structure. The basket assembly includes a first steel wire and a second steel wire. The first steel wire is of a folded structure. A soft shaft is provided at the intersection of the first steel wire and the second steel wire. The first steel wire and the second steel wire are driven to move under the pulling of the adjustment assembly, and the first steel wire and the second steel wire can change the angle by means of the soft shaft.
[0007] The technical solution adopted by the embodiment of the present application to solve its technical problems is: An auxiliary device for stone extraction, including a hose and a limit post located at the top of the hose. The limit post plays a role of restriction and positioning. When the basket mechanism is concave inside the hose, the basket mechanism inside the hose is limited by the limit post. A basket mechanism is provided at the middle position between the hose and the limit post. There are a total of four basket mechanisms, and the four basket mechanisms have the same size; Among them, the wire basket mechanism includes a wire basket assembly and an adjustment assembly. The wire basket assembly and the adjustment assembly are of a split structure. The wire basket assembly penetrates through the inside of the adjustment assembly, and the adjustment assembly is used to adjust the wire basket assembly. The wire basket assembly includes a first wire and a second wire. The first wire and the second wire of the wire basket assembly are made of a high-strength and elastic metal material, such as titanium alloy. The first wire is of a folded structure, and a flexible shaft is provided at the intersection of the first wire and the second wire. Since the first wire is of a folded structure and a flexible shaft is provided at the intersection with the second wire, under the action of the adjustment assembly, the angles of the first wire and the second wire can be flexibly adjusted, so that it is easier to enter the small and large-angle bile ducts and trap the stones.
[0008] Preferably, the adjustment assembly includes a limiting cylinder, a support rod penetrates through the inside of the limiting cylinder, and a connecting rope is provided at the bottom end of the support rod. When the stone is trapped and it is found that the stone and the wire basket assembly cannot pass through the sinus tract or the sheath tube and the stone needs to be released, the adjustment assembly is operated again. By pulling the connecting rope, the wire basket assembly above is driven to move, and the connection angle between the first wire and the second wire is quickly changed through the flexible shaft, so that the wire basket assembly expands and the stone is released.
[0009] Preferably, the flexible tube is a hollow cylindrical structure, the opening size at the top end of the flexible tube matches the size of the limiting column, and the flexible tube is made of a material with good flexibility and biocompatibility, such as medical silicone.
[0010] Preferably, the connecting rope is connected to the wire basket assembly. Pull down the connecting rope to drive the wire basket assembly to move downward, change the occupied space of the wire basket assembly, insert the flexible tube into the bile duct, and adjust the angle of the wire basket assembly through the adjustment assembly to make it adapt to the shape of the bile duct and the position of the stone, and trap the stone. When the stone needs to be released, operate the adjustment assembly to quickly change the connection angle between the first wire and the second wire through the flexible shaft, so that the wire basket assembly expands and the stone is released.
[0011] Preferably, both ends of the flexible shaft are respectively connected to the first wire and the second wire. The flexible shaft itself has plasticity. The flexible shaft is made of a material with good wear resistance and flexibility, and the flexible shaft itself has plasticity. When adjusting the angles of the first wire and the second wire, the angle of the flexible shaft itself changes.
[0012] Preferably, protective rings are sleeved on the outer walls of the first wire and the second wire. During the process of dragging and pulling the stone, the protective rings on the outer walls of the first wire and the second wire can play a buffering and protective role to avoid cutting and tearing damage to the bile duct.
[0013] The advantages of the embodiments of the present application are: 1. The device includes a hose and a limit post located at the top of the hose. Inside the hose and the limit post, there is a wire basket mechanism, which consists of a wire basket component and an adjustment component, and the two are of a split structure. The wire basket component includes a first steel wire and a second steel wire. The first steel wire is of a folded structure. At the intersection of the first steel wire and the second steel wire, there is a flexible shaft. Driven by the pulling of the adjustment component, the first steel wire and the second steel wire move, and the first steel wire and the second steel wire can change the angle with the help of the flexible shaft.
[0014] 2. When it is necessary to release the calculus, through the adjustment of the adjustment component, with the assistance of the flexible shaft, the connection angle between the first steel wire and the second steel wire can be quickly changed, so as to quickly put down the calculus, saving the operation time, reducing the pain of the patient and the operation risk, greatly improving the efficiency and success rate of calculus extraction, and being able to better handle various complex bile duct conditions.
[0015] 3. A protective circle is provided on the outer wall of the first steel wire and the second steel wire. The setting of the protective circle further ensures the safety and reliability of the operation, effectively avoiding the problems of cutting and tearing the bile duct during dragging and pulling, and reducing the operation risk. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention will be further described below with reference to the drawings and embodiments.
[0017] Figure 1 is a schematic diagram of the overall structure of the auxiliary device for calculus extraction of the present invention; Figure 2 is a front view structure schematic diagram of the auxiliary device for calculus extraction of the present invention; Figure 3 is a half-sectional structure schematic diagram of the auxiliary device for calculus extraction of the present invention; Figure 4 is a schematic diagram of the overall structure of the wire basket mechanism in the auxiliary device for calculus extraction of the present invention; Figure 5 is a schematic diagram of the overall structure of the wire basket component in the auxiliary device for calculus extraction of the present invention; Figure 6 For the present invention Figure 5 is a partial enlarged structure schematic diagram at A in the present invention.
[0018] Main reference numeral description: 1. Hose; 2. Limit post; 3. Wire basket mechanism; 4. Wire basket component; 5. Adjustment component; 51. Limit cylinder; 52. Support rod; 53. Connecting rope; 6. First steel wire; 7. Second steel wire; 8. Flexible shaft; 9. Protective circle. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. In addition, for the convenience of description below, the "upper", "lower", "left", "right", etc. cited are consistent with the upper, lower, left, right, etc. of the accompanying drawings themselves. The "first", "second", etc. in the following text are used for distinction in description and have no other special meaning.
[0020] The embodiment of the present application provides an auxiliary device for stone extraction to solve the problems in the prior art. The device includes a hose and a limiting column located at the top of the hose. A basket mechanism is arranged inside the hose and the limiting column. The basket mechanism is composed of a basket assembly and an adjusting assembly, and the two are of a split structure. The basket assembly includes a first steel wire and a second steel wire. The first steel wire is of a folded structure. A soft shaft is arranged at the intersection of the first steel wire and the second steel wire. Driven by the pulling of the adjusting assembly, the first steel wire and the second steel wire move. The first steel wire and the second steel wire can change the angle with the assistance of the soft shaft; when it is necessary to release the stone, through the adjustment of the adjusting assembly, with the assistance of the soft shaft, the connection angle between the first steel wire and the second steel wire can be quickly changed, so as to quickly put down the stone, saving the operation time, reducing the pain and operation risk of the patient, greatly improving the efficiency and success rate of stone extraction, and being able to better cope with various complex bile duct conditions; a protective circle is arranged on the outer wall of the first steel wire and the second steel wire, and the setting of the protective circle further ensures the safety and reliability of the operation, effectively avoiding the problems of cutting and tearing the bile duct during dragging and pulling, and reducing the operation risk.
[0021] The overall idea of the technical solution in the embodiment of the present application to solve the above problems is as follows: Embodiment 1
[0022] This embodiment gives the specific structure of an auxiliary device for stone extraction, as Figures 1-6 shown, including a hose 1 and a limiting column 2 located at the top of the hose 1. The limiting column 2 plays a role of limitation and positioning. When the basket mechanism 3 is concave inside the hose 1, the basket mechanism 3 inside the hose 1 is limited by the limiting column 2. A basket mechanism 3 is arranged at the middle position between the hose 1 and the limiting column 2. There are four basket mechanisms 3 in total, and the four basket mechanisms 3 have the same size; Among them, the basket mechanism 3 includes a basket component 4 and an adjustment component 5. The basket component 4 and the adjustment component 5 are of a split structure. The basket component 4 runs through the inside of the adjustment component 5, and the adjustment component 5 is used to adjust the basket component 4. The basket component 4 includes a first steel wire 6 and a second steel wire 7. The first steel wire 6 and the second steel wire 7 of the basket component 4 are made of a high-strength and elastic metal material, such as titanium alloy. The first steel wire 6 is of a folded structure. A soft shaft 8 is provided at the intersection of the first steel wire 6 and the second steel wire 7. Since the first steel wire 6 is of a folded structure and a soft shaft 8 is provided at the intersection with the second steel wire 7, under the action of the adjustment component 5, the angles of the first steel wire 6 and the second steel wire 7 can be flexibly adjusted, making it easier to enter the small and large-angle bile ducts and catch the stones.
[0023] The adjustment component 5 includes a limiting cylinder 51. A support rod 52 runs through the inside of the limiting cylinder 51. A connecting rope 53 is provided at the bottom end of the support rod 52. When the stone is caught and it is found that the stone and the basket component 4 cannot pass through the sinus tract or the sheath tube and the stone needs to be released, the adjustment component 5 is operated again. By pulling the connecting rope 53, the upper basket component 4 is driven to move, and the connection angle between the first steel wire 6 and the second steel wire 7 is quickly changed through the soft shaft 8, so that the basket component 4 expands and the stone is released.
[0024] The hose 1 is a hollow cylindrical structure. The opening size at the top end of the hose 1 matches the size of the limiting column 2. The hose 1 is made of a material with good flexibility and biocompatibility, such as medical silicone.
[0025] The connecting rope 53 is connected to the basket component 4. Pull down the connecting rope 53 to drive the basket component 4 to move downward, change the occupied space of the basket component 4, insert the hose 1 into the bile duct, and adjust the angle of the basket component 4 through the adjustment component 5 to make it adapt to the shape of the bile duct and the position of the stone, and catch the stone. When the stone needs to be released, operate the adjustment component 5 to quickly change the connection angle between the first steel wire 6 and the second steel wire 7 through the soft shaft 8, so that the basket component 4 expands and the stone is released.
[0026] Both ends of the soft shaft 8 are respectively connected to the first steel wire 6 and the second steel wire 7. The soft shaft 8 itself has plasticity. The soft shaft 8 is made of a wear-resistant and flexible material, and the soft shaft 8 itself has plasticity. When adjusting the angles of the first steel wire 6 and the second steel wire 7, the angle of the soft shaft 8 itself changes.
[0027] Protective rings 9 are sleeved on the outer walls of the first steel wire 6 and the second steel wire 7. During the process of dragging and pulling the stone, the protective rings 9 on the outer walls of the first steel wire 6 and the second steel wire 7 can play a buffering and protective role, avoiding cutting and tearing damage to the bile duct.
[0028] By adopting the above technical solutions: In the hepatobiliary surgery operating room of a large hospital, a patient needed surgery due to biliary tract stones, and the doctor used this stone extraction auxiliary device.
[0029] During the operation, facing the bile duct with a tricky angle, the doctor inserted the hose 1 into the bile duct by contracting the hose 1 inside the operating mirror. By adjusting the component 5, the angles of the first wire 6 and the second wire 7 in the basket assembly 4 were changed to adapt to the shape of the bile duct and the position of the stone. And under the pulling of the adjusting component 5, the angles of the first wire 6 and the second wire 7 inside the basket assembly 4 were easily changed. The basket assembly 4 was smoothly extended and sleeved the stone, and finally the stone was successfully removed. The operation process was smooth and the patient recovered well. Embodiment 2
[0030] This embodiment gives the specific structure of an auxiliary device for stone extraction, as Figures 1-6 shown, including a hose 1 and a limit post 2 at the top end of the hose 1. The limit post 2 plays a role in limiting and positioning. When the basket mechanism 3 is concave inside the hose 1, the basket mechanism 3 inside the hose 1 is limited by the limit post 2. There is a basket mechanism 3 at the middle position between the hose 1 and the limit post 2. There are four basket mechanisms 3 in total, and the four basket mechanisms 3 have the same size; Among them, the basket mechanism 3 includes a basket assembly 4 and an adjusting component 5. The basket assembly 4 and the adjusting component 5 are of a split structure. The basket assembly 4 runs through the inside of the adjusting component 5, and the basket assembly 4 is adjusted by the adjusting component 5. The basket assembly 4 includes a first wire 6 and a second wire 7. The first wire 6 and the second wire 7 of the basket assembly 4 are made of a high-strength and elastic metal material, such as titanium alloy. The first wire 6 is of a folded structure, and a soft shaft 8 is provided at the intersection of the first wire 6 and the second wire 7. Since the first wire 6 is of a folded structure and a soft shaft 8 is provided at the intersection with the second wire 7, under the action of the adjusting component 5, the angles of the first wire 6 and the second wire 7 can be flexibly adjusted, so that it is easier to enter the small and large-angle bile ducts and sleeve the stones.
[0031] The adjusting component 5 includes a limit cylinder 51. A support rod 52 runs through the inside of the limit cylinder 51. A connecting rope 53 is provided at the bottom end of the support rod 52. When the stone is sleeved and it is found that the stone and the basket assembly 4 cannot pass through the sinus tract or the sheath tube and the stone needs to be released, the adjusting component 5 is operated again. By pulling the connecting rope 53, the upper basket assembly 4 is driven to move, and the connection angle between the first wire 6 and the second wire 7 is quickly changed through the soft shaft 8, so that the basket assembly 4 expands and the stone is put down. The sinus tract refers to the channel formed between the bile duct and the abdominal wall after placing a drainage tube. Now, in the stone extraction process, it often involves putting a sheath tube through the sinus tract, then putting a flexible endoscope or a rigid biliary endoscope through the sheath tube, and then putting a stone extraction basket through the flexible endoscope or the rigid biliary endoscope to extract the stone.
[0032] The hose 1 is a hollow cylindrical structure. The size of the opening at the top of the hose 1 matches the size of the limiting column 2. The hose 1 is made of a material with good flexibility and biocompatibility, such as medical silicone.
[0033] The connecting rope 53 is connected to the basket assembly 4. Pulling down the connecting rope 53 drives the basket assembly 4 to move downward, changing the space occupied by the basket assembly 4, inserting the hose 1 into the bile duct, and adjusting the angle of the basket assembly 4 through the adjusting assembly 5 to adapt to the shape of the bile duct and the position of the stone to trap the stone. When it is necessary to loosen the stone, the adjusting assembly 5 is operated to quickly change the connection angle of the first steel wire 6 and the second steel wire 7 through the soft shaft 8, so that the basket assembly 4 expands and the stone is put down.
[0034] The two ends of the flexible shaft 8 are respectively connected to the first steel wire 6 and the second steel wire 7. The flexible shaft 8 itself has plasticity. The flexible shaft 8 is made of wear-resistant and flexible materials. The flexible shaft 8 itself has plasticity. When the angle of the first steel wire 6 and the second steel wire 7 is adjusted, the angle of the flexible shaft 8 itself changes.
[0035] The outer walls of the first steel wire 6 and the second steel wire 7 are both covered with protective rings 9. In the process of dragging and pulling stones, the protective rings 9 on the outer walls of the first steel wire 6 and the second steel wire 7 can play a buffering and protective role to avoid cutting and tearing damage to the bile duct.
[0036] By adopting the above technical solution: In a specialist hospital, a patient with complex biliary stones was treated and this stone removal aid played a key role.
[0037] The hose 1 is smoothly inserted into the bile duct, and the basket component 4, under the precise control of the adjustment component 5, accurately adapts to the complex structure of the bile duct, so that the first steel wire 6 and the second steel wire 7 are contracted during the expansion process, and the stone is successfully trapped. When the stone is too large to pass through the sheath, the adjustment component 5 is quickly operated, and the angle of the first steel wire 6 and the second steel wire 7 is changed with the help of the soft shaft 8, so that the basket component 4 is expanded, and the stone is quickly lowered. The stone removal strategy is readjusted, and the function of quickly adjusting the basket angle to loosen the stone is used to greatly save the operation time and reduce the trauma of the patient.
[0038] Working principle: When performing a biliary stone removal operation, the hose 1 is first inserted into the bile duct, and the angles of the first steel wire 6 and the second steel wire 7 in the basket assembly 4 are changed by adjusting the assembly 5 to adapt to the shape of the bile duct and the position of the stone.
[0039] Since the first steel wire 6 is a folding structure and a soft shaft 8 is provided at the intersection with the second steel wire 7, the angle of the first steel wire 6 and the second steel wire 7 can be flexibly adjusted under the action of the adjustment component 5, so that it is easier to enter the small and large-angle bile duct and trap the stone.
[0040] When the stone is trapped and it is found that the stone and the basket assembly 4 cannot pass through the solid channel or the sheath tube and the stone needs to be released, operate the adjusting assembly 5 again to quickly change the connection angle between the first wire 6 and the second wire 7 through the flexible shaft 8, so that the basket assembly 4 expands and the stone is put down.
[0041] During the process of dragging and pulling the stone, the protective rings 9 on the outer walls of the first wire 6 and the second wire 7 can play a buffering and protecting role to avoid cutting and tearing damage to the bile duct.
[0042] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.
Claims
1. An auxiliary device for stone removal, characterized in that: It comprises a hose (1) and a limiting column (2) located at the top end of the hose (1), and a basket mechanism (3) is provided at a position between the hose (1) and the limiting column (2); The basket mechanism (3) comprises a basket assembly (4) and an adjustment assembly (5); the basket assembly (4) comprises a first steel wire (6) and a second steel wire (7); the first steel wire (6) is a folding structure; a flexible shaft (8) is provided at the intersection of the first steel wire (6) and the second steel wire (7).
2. The stone removal auxiliary device according to claim 1, characterized in that: The adjustment assembly (5) comprises a limiting cylinder (51), a support rod (52) passes through the inside of the limiting cylinder (51), and a connecting rope (53) is provided at the bottom end of the support rod (52).
3. A stone removal auxiliary device as claimed in claim 2, characterized in that: The hose (1) is a hollow cylindrical structure, and the size of the opening at the top end of the hose (1) matches the size of the limiting column (2).
4. The stone removal auxiliary device as claimed in claim 3, characterized in that: The connecting rope (53) is connected to the net basket assembly (4); by pulling the connecting rope (53) downward, the net basket assembly (4) is driven to move downward, thereby changing the space occupied by the net basket assembly (4).
5. The stone removal auxiliary device according to claim 1, characterized in that: The two ends of the flexible shaft (8) are respectively connected to the first steel wire (6) and the second steel wire (7), and the flexible shaft (8) itself has plasticity.
6. The stone removal auxiliary device according to claim 1, characterized in that: There are four net basket mechanisms (3) in total, and the four net basket mechanisms (3) have the same size.
7. The stone removal auxiliary device according to claim 1, characterized in that: The net basket component (4) and the adjustment component (5) are of split structures; the net basket component (4) runs through the interior of the adjustment component (5); and the net basket component (4) is adjusted via the adjustment component (5).
8. The stone removal auxiliary device according to claim 1, characterized in that: The outer surfaces of the first steel wire (6) and the second steel wire (7) are both sleeved with protective rings (9).