Operating instrument used for laparoscopic surgery and capable of being assembled in abdominal cavity

Abstract

The utility model provides an operating instrument used for laparoscopic surgery and capable of being assembled in an abdominal cavity, relates to the technical field of laparoscopic surgery, and aims to solve the problems that a traditional instrument has many wounds, pneumoperitoneum is damaged when a working end is replaced, and blind visual field operation is difficult. The operating piece is detachably connected with a working end (including a puncture end and an operating end); the puncture end of the operating part is punctured into the abdominal cavity, the auxiliary part is punctured into the abdominal cavity through the trocar, the auxiliary part is composed of a main body, at least two sliding rings and a clamping structure, the clamping structure slides along with the sliding rings through a traction steel wire to form a holding action, and the puncture end and the operating end can be detached and assembled in the abdominal cavity. Only two abdominal wounds are needed, pneumoperitoneum stability can be kept, operation can be conducted under the view of an endoscope, wounds of a patient are reduced, and operation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of laparoscopic surgery technology, and in particular to an intra-abdominal assembly operating instrument for laparoscopic surgery. Background Technology

[0002] Laparoscopic surgery is a newly developed minimally invasive technique and an inevitable trend in the future development of surgical methods. With the rapid advancement of industrial manufacturing technology and the integration of related disciplines, a solid foundation has been laid for the development of new technologies and methods. Coupled with increasingly skilled surgeons, many previously open surgeries have now been replaced by endoscopic procedures, greatly increasing surgical options. The traditional method of retroperitoneal laparoscopic surgery involves making three 1-centimeter incisions in the patient's lower back, inserting a tubular working channel called a trocar into each incision. All subsequent operations are performed through these three channels. Specialized extended surgical instruments are then used under video monitoring to complete the same steps as open surgery, achieving the same surgical results.

[0003] However, with current traditional laparoscopic surgical instruments, at least three incisions are typically required in the patient's abdomen to accommodate the insertion and removal of instruments, the coordination of auxiliary instruments, and laparoscopic observation. Too many incisions not only directly increase postoperative pain and the risk of infection but may also lead to scar hyperplasia due to differences in wound healing speed, prolonging the postoperative recovery period and negatively impacting the patient's quality of life and physical recovery. Furthermore, changing the working head of instruments in traditional surgery requires passing the instrument through the abdominal cavity, a process that can easily disrupt the pneumoperitoneum. Reconstructing pneumoperitoneum not only requires additional time but may also interfere with normal gastrointestinal function due to repeated changes in abdominal pressure, while also causing fluctuations in the clarity of the surgical field, affecting the surgeon's judgment. Utility Model Content

[0004] This utility model provides an intraperitoneally assembled operating instrument for laparoscopic surgery, specifically comprising:

[0005] A detachable operating component and auxiliary part are provided for connection between the working end and the auxiliary part. The working end includes a puncture end and an operating end, and the operating component enters the abdominal cavity through a puncture when the puncture end is installed. The auxiliary part enters the abdominal cavity through a cannula and consists of a main body, at least two sliding rings, and a clamping structure connected to the sliding rings. The clamping structure is connected to the sliding rings through a traction wire and forms a clamping action when the sliding rings slide along the main body. The clamping structure clamps the puncture end installed on the operating component in the abdominal cavity and separates the puncture end from the operating component. After the clamping structure removes the puncture end, it re-enters the abdominal cavity and inserts the operating end, connecting the operating end to the operating component.

[0006] Preferably, the detachable connection between the operating component and the working end is a threaded connection, a snap-fit ​​connection, or a magnetic connection.

[0007] Preferably, the auxiliary part further includes a fixing ring; the fixing ring is located at the end of the main body away from the clamping structure, and the center of the fixing ring forms an isosceles triangle with the circles of the two sliding rings.

[0008] Preferably, the clamping structure is a first clamping member; the first clamping member is a clamp-like structure composed of two symmetrical jaws, and the two jaws of the first clamping member are rotatably connected to the main body; the side of the two jaws of the first clamping member away from the working end is connected to the sliding ring by a traction steel wire.

[0009] Preferably, the two jaws of the first clamping member are each provided with a semi-circular groove.

[0010] Preferably, the clamping structure is a second clamping member; a semi-circular groove is provided on the side of the main body near the working end, and through holes are provided on both sides of the semi-circular groove of the main body; the second clamping member is a strip structure, and the two ends of the second clamping member pass through the through holes on both sides of the semi-circular groove of the main body respectively, and are respectively connected to the traction wires of the two sliding rings; a circular clamping cavity is formed between the section of the second clamping member located on the outside of the main body and the semi-circular groove of the main body.

[0011] Preferably, the second clamping member is elastic.

[0012] Preferably, the clamping structure has linearly arranged contact protrusions on the side facing the working end.

[0013] Beneficial effects

[0014] 1. In this invention, only two abdominal incisions are required to complete the surgical procedure—one serves as a channel for the puncture end to be inserted into the abdominal cavity, and the other serves as a cannula channel for the auxiliary part to enter and exit, the puncture end to be removed, and the operating end to be inserted, while also accommodating the needs of laparoscopic observation. The reduction in the number of incisions directly reduces the probability of postoperative complications, alleviates postoperative pain, helps shorten hospital stays, and accelerates the patient's return to normal life and work. In addition, in traditional surgery, when changing the working end, the operating part often needs to be inserted outside the body. This process can easily disrupt the pneumoperitoneum state in the abdominal cavity. Reconstructing the pneumoperitoneum is not only time-consuming, but may also interfere with gastrointestinal function and affect the clarity of the surgical field due to repeated changes in abdominal pressure. However, this instrument directly completes the disassembly of the puncture end and the connection of the operating part within the abdominal cavity through the auxiliary part, maintaining the stability of the pneumoperitoneum throughout the process. This avoids the interference of repeated pneumoperitoneum reconstruction with the patient's intra-abdominal environment and provides continuous and stable spatial conditions for the surgical procedure.

[0015] 2. In this invention, the auxiliary part, through the cooperation of the main body, sliding ring, and clamping structure, allows for operation under a clear endoscopic view. The clamping structure (such as a clamp-like first clamping member or a strip-like second clamping member) controls the traction wire through the sliding ring to achieve a clamping action. Combined with the contact protrusions enhancing the friction with the working end, it can accurately and stably complete the disassembly of the puncture end and the installation of the operating end without relying on blind-view positioning. This endoscopic visualization operation not only lowers the operational threshold for doctors, especially for less experienced doctors, but also significantly reduces the probability of operational errors. Simultaneously, it eliminates the time spent searching for the opening and repeatedly adjusting the position of the operating member under blind-view conditions, significantly shortening the time spent changing the working end, making the surgical procedure smoother, indirectly reducing the patient's anesthesia time and total surgical time, and reducing the risks of decreased patient body temperature and increased circulatory burden that may occur during prolonged surgery, further ensuring surgical safety and efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0018] In the attached diagram:

[0019] Figure 1 A three-dimensional structural schematic diagram of a laparoscopic surgical instrument according to an embodiment of the present invention is shown.

[0020] Figure 2 Another three-dimensional structural schematic diagram of a laparoscopic surgical instrument according to an embodiment of the present invention is shown.

[0021] Figure 3 A front view of the operating element of a laparoscopic surgical instrument according to an embodiment of the present invention is shown.

[0022] Figure 4 A front view of the auxiliary part of a laparoscopic surgical instrument according to an embodiment of the present invention is shown.

[0023] Figure 5 The laparoscopic surgical instrument according to an embodiment of the present invention is shown. Figure 4 A magnified view of a portion of point A shown.

[0024] Figure 6 A three-dimensional structural schematic diagram of the auxiliary part of a laparoscopic surgical instrument according to another embodiment of the present invention is shown.

[0025] Figure 7 The laparoscopic surgical instrument according to an embodiment of the present invention is shown. Figure 6 A magnified view of a portion of point B shown.

[0026] List of main reference numerals

[0027] 1. Operating components;

[0028] 201. Puncture end; 202. Operating end;

[0029] 3. Auxiliary part; 301. Main body; 302. Fixing ring; 303. Sliding ring; 304. First clamping member; 305. Second clamping member; 306. Contact protrusion. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0032] To keep the drawings concise, only the parts relevant to this application are shown schematically in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled.

[0033] In this document, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] Example: Please refer to Figures 1 to 7 :

[0035] This utility model proposes an intraperitoneally assembled operating instrument for laparoscopic surgery, comprising:

[0036] The operating component 1 and auxiliary part 3 are detachably connected to the working end; the working end includes a puncture end 201 and an operating end 202, and the operating component 1 enters the abdominal cavity through puncture when the puncture end 201 is installed; the auxiliary part 3 enters the abdominal cavity through a cannula, and the auxiliary part 3 consists of a main body 301, at least two sliding rings 303, and a clamping structure connected to the sliding rings 303; the clamping structure is connected to the sliding rings 303 through a traction steel wire, and forms a clamping action when the sliding rings 303 slide along the main body 301; the clamping structure clamps the puncture end 201 installed on the operating component 1 in the abdominal cavity and separates the puncture end 201 from the operating component 1; after the clamping structure removes the puncture end 201, the clamping structure re-enters the abdominal cavity and inserts the operating end 202, so that the operating end 202 is connected to the operating component 1.

[0037] like Figure 1 and Figure 2 As shown, in this embodiment, the patient's abdomen requires at least two incisions. One is the channel for the insertion of the operating device 1, and the other is the channel for the cannula-punch-entry. The larger inner cavity of the cannula allows for the removal of the puncture end 201, the entry of the operating end 202, and the entry of the laparoscope. It should be noted that the puncture end 201 specifically refers to the puncture needle used for puncture, and the operating end 202 generally refers to the electrocoagulation forceps or other operating instruments used in laparoscopic surgery.

[0038] In the above embodiments, the front section of the clamping structure can be a jaw or a ring belt, which can surround the working end and hold the working end tightly by clamping or wrapping, etc. The following will list them one by one. The clamping structure is installed after the main body 301 and is controlled by at least two sliding rings 303 that can move relative to the main body 301.

[0039] By using this instrument, the number of incisions required for laparoscopic surgery can be reduced from at least three to at least two, resulting in less trauma to the patient and significantly improving postoperative recovery. Furthermore, unlike the instrument 1 where the puncture end 201 and operating end 202 are replaced via a cannula, in this instrument, the connection between the instrument 1 and the working end remains within the patient's abdominal cavity. The replacement of the puncture end 201 and operating end 202 relies on the auxiliary part 3 and the cannula, allowing assembly to be performed while maintaining pneumoperitoneum, reducing the number of times a pneumoperitoneum environment is established, saving considerable time, and improving surgical efficiency. In addition, the process of the instrument 1 passing through the cannula from the abdominal cavity to the outside often requires locating the opening of the cannula within the abdominal cavity under blind vision. With this instrument, locating the cannula opening under blind vision is unnecessary, and the installation of the working end can be completed under endoscopic vision, effectively simplifying the procedure.

[0040] Among them, such as Figure 3 As shown, the detachable connection between the operating component 1 and the working end is a threaded connection, a snap-fit ​​connection, or a magnetic connection.

[0041] The auxiliary part 3 also includes a fixing ring 302; the fixing ring 302 is located at the end of the main body 301 away from the clamping structure, and the center of the fixing ring 302 forms an isosceles triangle with the circles of the two sliding rings 303.

[0042] like Figure 4 As shown, in this embodiment, the operator operates the auxiliary part 3 by passing the thumb through the fixing ring 302 and the index and middle fingers through the two sliding rings 303 respectively, and controlling the opening and closing of the clamping structure by opening and closing the thumb, index finger and middle finger; the following provides two clamping methods of the clamping structure.

[0043] The clamping structure is a first clamping member 304; the first clamping member 304 is a clamp-like structure composed of two symmetrical jaws, and the two jaws of the first clamping member 304 are rotatably connected to the main body 301 respectively; the side of the two jaws of the first clamping member 304 away from the working end is connected to the sliding ring 303 by a traction steel wire.

[0044] like Figure 4 and Figure 5 As shown, in this embodiment, the working end is clamped by the first clamping member 304, and the sliding of the sliding ring 303 and the main body 301 is used to control the opening and closing of the two jaws. It should be noted that since the first clamping member 304 only provides clamping, this embodiment is generally used for the working end that is snapped or magnetically connected to the operating member 1.

[0045] The first clamping member 304 has semi-circular grooves on its two jaws.

[0046] like Figure 5 As shown, in this embodiment, the semi-circular groove on the jaws allows for more stable clamping of the working end.

[0047] The clamping structure is a second clamping member 305; a semi-circular groove is provided on the side of the main body 301 near the working end, and through holes are provided on both sides of the semi-circular groove of the main body 301; the second clamping member 305 is a strip structure, and the two ends of the second clamping member 305 pass through the through holes on both sides of the semi-circular groove of the main body 301 respectively, and are respectively connected to the traction steel wires of the two sliding rings 303; a section of the second clamping member 305 located on the outside of the main body 301 forms a circular clamping cavity between itself and the semi-circular groove of the main body 301.

[0048] like Figure 6 and Figure 7As shown, in this embodiment, the working end is clamped by the circular clamping cavity. Specifically, the sliding ring 303 slides down along the main body 301, increasing the length of the section of the second clamping member 305 located outside the main body 301, thereby increasing the area of ​​the circular clamping cavity. The circular clamping cavity is then placed on the outside of the working end, and the sliding ring 303 is used to tighten the second clamping member 305 and hold the working end tightly.

[0049] It should be noted that in the above embodiment, by controlling the sliding direction of the two sliding rings 303, for example, one sliding ring 303 moves upward and the other sliding ring 303 moves downward, the second clamping member 305 can be driven to roll, thereby driving the working end to rotate. Therefore, this embodiment can be used when the working end and the operating member 1 are connected by a thread.

[0050] The second clamping member 305 is elastic.

[0051] In this embodiment, the elastic second clamping member 305 can increase the stability of the clamping.

[0052] The clamping structure has linearly arranged contact protrusions 306 on the side facing the working end.

[0053] like Figure 5 and Figure 7 As shown, in this embodiment, the friction between the clamping structure and the working end is increased by contacting the protrusion 306.

[0054] The above description is merely a specific embodiment of this application. Under the guidance of the above teachings, those skilled in the art can make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of this application, and the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An intra-abdominally assembled operating instrument for laparoscopic surgery, comprising an operating member (1) with a detachably connected working end and an auxiliary part (3); the working end comprises a puncture end (201) and an operating end (202), and the operating member (1) is punctured into the abdominal cavity when the puncture end (201) is installed; the auxiliary part (3) enters the abdominal cavity through a trocar, characterized in that, The auxiliary part (3) is composed of a main body (301), at least two sliding rings (303) and a clamping structure connected with the sliding rings (303); the clamping structure is connected with the sliding rings (303) through traction steel wires and forms a clamping action when the sliding rings (303) slide along the main body (301); the clamping structure is installed on the puncture end (201) of the operating part (1) in the abdominal cavity, and separates the puncture end (201) from the operating part (1); after the clamping structure takes out the puncture end (201), the clamping structure enters the abdominal cavity again and is placed in the operating end (202), so that the operating end (202) is connected with the operating part (1).

2. An intraperitoneally assemblable operating instrument for laparoscopic surgery according to claim 1, characterized in that, The detachable connection mode between the operating part (1) and the working end is screw connection, buckle connection or magnetic connection.

3. An intraperitoneally assemblable operating instrument for laparoscopic surgery according to claim 1, characterized in that, The auxiliary part (3) further comprises a fixed ring (302); the fixed ring (302) is located at one end of the main body (301) away from the clamping structure, and the centers of the fixed ring (302) and the two sliding rings (303) form an isosceles triangle.

4. An intraperitoneally assemblable operating instrument for laparoscopic surgery according to claim 1, characterized in that, The clamping structure is a first clamping part (304); the first clamping part (304) is a pincer-shaped structure composed of two left and right symmetrical jaws, and the two jaws of the first clamping part (304) are respectively rotatably connected with the main body (301); the side of the two jaws of the first clamping part (304) away from the working end is respectively connected with the sliding ring (303) through a traction steel wire.

5. An intraperitoneally assemblable operating instrument for laparoscopic surgery according to claim 4, characterized in that, Half-circular grooves are respectively formed in the two jaws of the first clamping part (304).

6. An intraperitoneally assemblable operating instrument for laparoscopic surgery according to claim 1, characterized in that, The clamping structure is a second clamping part (305); a semicircular groove is formed on one side of the main body (301) close to the working end, and through holes are formed on both sides of the semicircular groove of the main body (301); the second clamping part (305) is a belt-shaped structure, and the two ends of the second clamping part (305) pass through the through holes on both sides of the semicircular groove of the main body (301) respectively and are respectively connected with the traction steel wires of the two sliding rings (303); a circular clamping cavity is formed between the section of the second clamping part (305) outside the main body (301) and the semicircular groove of the main body (301).

7. An intraperitoneally assemblable operating instrument for laparoscopic surgery according to claim 6, characterized in that, The second clamping part (305) has elasticity.

8. An intraperitoneally assemblable operating instrument for laparoscopic surgery according to claim 4 or claim 6, characterised in that, The side of the clamping structure pointing to the working end is provided with linearly arranged contact protrusions (306).

Images