Straightening device for bile duct operation

Abstract

The utility model relates to the field of medical instruments, and provides a straightening device for bile duct surgery, which comprises a longitudinally extending hollow tube body, one end of the tube body is a free end, the other end of the tube body is connected with a first end of a hollow joint seat, a second end of the joint seat is connected with a top cover, and a silica gel film is arranged in the area where the joint seat is connected with the hollow top cover. The silica gel film wraps the end area, close to the top cover, in the connector base, and a silica gel hole facilitating entering of a third-party instrument from the straightening device is formed in the silica gel film. The straightening device for the bile duct operation is a pioneer in biliary duct operation instruments of an applicant, fills the technical blank of straightening devices in the field, and can provide enough and right rigidity and hardness for the choledochoscope, so that a doctor can adjust the choledochoscope to a corresponding force application point more easily, and the operation efficiency of the choledochoscope is improved. And the lens of the choledochoscope can be easily inserted into a target position of a bile duct.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a straightening device for bile duct surgery. Background Technology

[0002] In bile duct surgeries, especially those involving gallstones that require incision of the bile duct, a choledochoscope is used to explore for stones. However, because the bile duct is relatively soft and often atrophied, and although the choledochoscope has an insertion point, this point is usually made of a soft material, medical staff often struggle with insufficient or inaccurate force when inserting the choledochoscope into the bile duct. They need to constantly rotate their wrists to adjust the optimal point of force to ensure smooth insertion. This precise control of the force application usually requires experienced surgeons to repeatedly and calmly adjust the angle and point of force of the insertion point. However, medical procedures cannot rely solely on experienced surgeons. When novice or less experienced surgeons operate the choledochoscope, the procedure can easily become time-consuming, or they may be unable to find the precise point of force to insert the choledochoscope into the bile duct, thus delaying the surgery and increasing the risk of infection for the patient. This clearly poses a significant challenge to the surgeon's manual surgical skills. Summary of the Invention

[0003] One of the objectives of this invention is to provide a straightening device for bile duct surgery, thereby improving the existing operating environment for cholangioscopy, enabling doctors to operate the cholangioscopy more conveniently and accurately using the straightening device provided by this invention, reducing the burden on doctors and improving operational efficiency.

[0004] To achieve the above objectives, according to an embodiment of the present invention, the present invention provides the following technical solution: a straightening device for bile duct surgery, comprising a longitudinally extending and hollow tube body, one end of the tube body being a free end, and the other end being connected to a first end of a hollow connector seat, the second end of the connector seat being connected to a top cover, a silicone membrane being placed in the area where the connector seat is connected to the hollow top cover, the silicone membrane covering the end area of ​​the connector seat near the top cover, and silicone holes being provided on the silicone membrane to facilitate the entry of third-party instruments from the straightening device.

[0005] Preferably, the third-party instrument is a cholangioscope, and the diameter of the silicone orifice is smaller than the diameter of the cholangioscope.

[0006] Preferably, the third-party instrument is a cholangioscope, and the diameter of the silicone orifice is configured to be between 3mm and 4.8mm depending on the different models of the cholangioscope.

[0007] Preferably, the length of the tube body is between 170mm and 300mm.

[0008] Preferably, the outer diameter of the tube body is between 6mm and 10mm.

[0009] Preferably, the silicone membrane is fixed between the top cover and the connector seat by adhesive bonding.

[0010] Preferably, the top cover and the connector seat are made of acrylonitrile-butadiene-styrene copolymer.

[0011] Preferably, the tube body is made of polycarbonate.

[0012] Preferably, the tube body is bonded to the connector seat after being inserted into the connector seat.

[0013] Preferably, the outer periphery of the top cover is circular.

[0014] Preferably, the bottom of the free end of the tube is rounded.

[0015] Compared with the prior art, the straightening device for bile duct surgery provided by this utility model is the applicant's first creation in bile duct surgical instruments, filling the technical gap in the field of straightening devices.

[0016] The straightening device of this invention can achieve at least the following technical effects: This invention adopts a rigid straight-structure straightening device, which is inserted into the patient's puncture hole, so that the insertion part of the choledochoscope can enter through the silicone hole of the straightening device. Because the rigid straightening device of this invention can provide the choledochoscope with sufficient and just the right rigidity and stiffness, it makes it easier and more convenient for doctors to adjust the choledochoscope to the corresponding force point, and then easily insert the choledochoscope lens into the target position of the bile duct, greatly reducing the doctor's effort in operating the choledochoscope, especially for novice doctors, and can significantly reduce the operation time and the risk of patient infection.

[0017] Furthermore, the straightening device of this invention provides a point of leverage for third-party instruments such as choledochoscopes, reducing the number of repeated surgical procedures. To further enhance surgical safety and minimize the possibility of foreign objects being introduced into the bile duct, a silicone membrane is used to seal the tip of the straightening device. Although the silicone membrane has silicone holes, these holes are closed when there is no external interference, thus ensuring a well-sealed operating environment. Moreover, even if the choledochoscope enters the straightening device through the silicone holes, the compression of the choledochoscope by the silicone membrane surrounding the holes still effectively maintains the airtightness of the operating environment.

[0018] In addition, the end of the straightening device of this invention is rounded, which better protects the patient's internal tissues from injury.

[0019] In addition, in order to better accommodate different specifications or models of cholangioscopy, the diameter of the silicone orifice of this invention is configured to be between 3mm and 4.8mm depending on the model of the cholangioscopy, the length of the tube is set between 170mm and 300mm, and the outer diameter of the tube is set between 6mm and 10mm.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 A simplified structural diagram of a straightening device for bile duct surgery provided in one embodiment of this utility model;

[0023] Figure 2 This utility model provides an embodiment for... Figure 1 A schematic diagram showing the straightening device used in conjunction with a cholangioscope.

[0024] The same or similar reference numerals in the accompanying drawings represent the same or similar structures.

[0025] Reference numerals: 1-tube body; 2-connector seat; 3-top cap; 4-silicone membrane; 5-silicone hole; 6-choledochoscope; 7-punch card; 8-skin surface; 61-bend of choledochoscope; 7-bile duct. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0028] Please refer to Figure 1 , Figure 1 A straightening device for bile duct surgery is provided as an embodiment of this utility model, such as Figure 1As shown, the straightening device includes a longitudinally extending, hollow tube 1. One end of the tube 1 is a free end, and the other end is connected to the first end of a hollow connector 2. The second end of the connector 2 is connected to a top cover 3. A silicone membrane 4 is placed in the area where the connector 2 is connected to the hollow top cover 3. The silicone membrane 4 covers the end area of ​​the connector 2 near the top cover 3. Silicone holes 5 are provided on the silicone membrane 4 to facilitate the entry of third-party instruments from the straightening device. The connection methods in this invention include, but are not limited to, bonding, snap-fitting, or other suitable connection methods.

[0029] Specifically, the tube body 1 of the bile duct surgical straightening device of this invention can be a hollow cylinder. In order to reduce bruising to the patient's internal tissues, the bottom of the free end of the tube body 1 is rounded. The inner diameter of the connector 2 can be greater than or equal to the outer diameter of the tube body 1, so that the connector 2 can be bonded or sleeved to one end of the tube body 1 and fixed to the tube body 1.

[0030] To reduce the possibility of foreign objects being introduced into the bile duct and ensure a sealed operating environment, a silicone membrane 4 is used to seal the head end of the straightening device. The silicone membrane 4 can be considered as a thin film covering one end of the connector 2. When the connector 2 and the top cover 3 are connected (e.g., bonded), the silicone membrane 4 is fixed between the connector 2 and the top cover 3. To allow third-party instruments such as cholangioscopes to enter the straightening device through silicone holes 5, silicone holes 5 are provided on the silicone membrane 4. However, these silicone holes 5 are closed when there is no external interference, thus effectively ensuring a sealed operating environment. Moreover, even if the cholangioscope enters the silicone hole 5, the compression of the cholangioscope by the silicone membrane 4 surrounding the silicone hole 5 still effectively maintains the seal of the operating environment.

[0031] Furthermore, to maintain sufficient rigidity and for surgical safety and ease of operation, it is preferable to use an acrylonitrile-butadiene-styrene copolymer to make the top cap 3 and / or the connector seat 2, and preferably to use polycarbonate to make the tube body 1, in order to meet the required good performance. The tube body 1 is preferably of a straight structure.

[0032] Further preferably, based on multiple explorations and trials in practice, in order to better cooperate with the operation of the cholangioscopy and ensure a better operating environment and operational safety, the diameter of the silicone hole 5 of this utility model is much smaller than the diameter of the cholangioscopy. Specifically, the diameter of the silicone hole 5 is preferably configured between 3mm and 4.8mm, depending on the different models of the cholangioscopy, the length of the tube body 1 is preferably configured between 170mm and 300mm, and the outer diameter of the tube body 1 is preferably configured between 6mm and 10mm.

[0033] It should be noted that the silicone membrane 4 can be fixed between the top cover 3 and the connector seat 2 by adhesive bonding. In order to further improve the safety of operation, the outer periphery of the top cover 3 is set to be circular.

[0034] For a clearer description of the bile duct straightening device provided by this utility model, please refer to... Figure 2 The following text uses the example of bile duct surgery performed with the choledochoscope 6 in conjunction with the straightening device of this invention to illustrate the operation process of the straightening device, so as to further demonstrate the convenience that the straightening device of this invention brings to the operator of bile duct surgery.

[0035] Before preparing for bile duct surgery, the straightening device is first inserted into the trocar channel, and then the choledochoscope 6 is inserted through the silicone hole 5 of the straightening device. After the straightening device, trocar, and choledochoscope 6 are assembled, the angle of the structure located on the skin of the trocar is adjusted so that the curved part 61 of the choledochoscope can be easily and accurately inserted into the bile duct 7.

[0036] It should be noted that the trocar is a tool frequently used in existing laparoscopic and thoracic surgeries to provide a channel for surgical instruments to enter the patient's body and for positioning them. In use, one end of the trocar is inserted into the skin, and the other end is fixed to the skin surface. A dedicated channel is established through the trocar, allowing slender surgical instruments such as surgical instruments like scalpels and ultrasonic scalpels to enter the cavity for procedures such as lesion removal.

[0037] It should be noted that in this utility model, the length of the tube body 1 of the straightening device is longer than that of the puncture card. Moreover, the tube body 1 of the straightening device can fit more closely to the insertion part of the cholangioscope 6 than the puncture card, so as to provide a better support point for the insertion part of the cholangioscope 6 and facilitate medical staff to perform bile duct operations.

[0038] Compared with existing technologies, the straightening device of this invention adopts a rigid, straight tube structure, which provides stable support, allowing doctors to better control the angle and force applied by the cholangioscope 6, facilitating its insertion. Furthermore, one end of the tube body 1 of this invention is sealed with a silicone membrane 4. The diameter of the silicone hole 5 is much smaller than the diameter of the cholangioscope 6. After the insertion part of the cholangioscope 6 passes through the silicone membrane 4, the elasticity of the membrane allows it to further tighten the cholangioscope 6, creating a sealed operating environment and reducing the possibility of foreign objects being introduced into the bile duct. Additionally, the end of the tube body 1 of this invention is rounded to protect the patient's internal tissues from injury.

[0039] It should be noted that the technical solutions described above are only preferred embodiments of this utility model. All equivalent alternatives or obvious modifications of the implementation methods given in the specification that can be reasonably predicted by those skilled in the art to achieve the purpose of this utility model are also included within the protection scope of this utility model.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A straightening device for bile duct surgery, characterized in that, It includes a longitudinally extending and hollow tube body, one end of which is a free end, and the other end is connected to the first end of the hollow connector seat. The second end of the connector seat is connected to the top cover. A silicone membrane is placed in the area where the connector seat is connected to the hollow top cover. The silicone membrane covers the end area of ​​the connector seat near the top cover. Silicone holes are provided on the silicone membrane to facilitate the entry of third-party instruments from the straightening device.

2. The straightening device for bile duct surgery according to claim 1, characterized in that, The third-party instrument is a cholangioscope, and the diameter of the silicone orifice is smaller than the diameter of the cholangioscope.

3. The straightening device for bile duct surgery according to claim 1, characterized in that, The third-party instrument is a cholangioscope, and the diameter of the silicone orifice varies from 3mm to 4.8mm depending on the model of the cholangioscope.

4. The straightening device for bile duct surgery according to claim 1 or 2, characterized in that, The length of the tube body is between 170mm and 300mm.

5. The straightening device for bile duct surgery according to claim 1 or 2, characterized in that, The outer diameter of the tube is between 6mm and 10mm.

6. The straightening device for bile duct surgery according to claim 1, characterized in that, The silicone membrane is fixed between the top cover and the connector seat by adhesive bonding.

7. The straightening device for bile duct surgery according to claim 1, characterized in that, The top cover and connector are made of acrylonitrile-butadiene-styrene copolymer.

8. The straightening device for bile duct surgery according to claim 1, characterized in that, The tube body is made of polycarbonate.

9. The straightening device for bile duct surgery according to claim 1, characterized in that, The outer perimeter of the top cover is circular.

10. The straightening device for bile duct surgery according to claim 1, characterized in that, The bottom of the free end of the tube is rounded.

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