Multifunctional laparoscope gynecological surgical instrument

Abstract

The invention relates to the technical field of medical instruments, and discloses a multifunctional laparoscopic gynecological surgical instrument which comprises a handle assembly, a forceps rod connected with the handle assembly, a forceps head assembly arranged at the end, away from the handle assembly, of the forceps rod and a suction assembly. The forceps rod is of a slender tubular structure, and a first channel and a second channel are arranged in the forceps rod side by side. The forceps head assembly comprises a fixed forceps seat, a movable forceps flap and a transmission connecting rod, one end of the transmission connecting rod is hinged to the middle rear portion of the movable forceps flap through a first rotating shaft, and the other end of the transmission connecting rod extends to the end, close to the handle assembly, of the forceps rod. The suction assembly comprises a suction tube and a suction head, the suction tube is arranged in the first channel, and the suction head is telescopically arranged at the far end of the forceps rod and communicated with the far end of the suction tube. The problems of low efficiency and operation risk caused by single instrument function and frequent replacement in a traditional laparoscopic gynecological operation are solved. The instrument realizes seamless fusion and rapid switching of three functions of suction, separation and clamping.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a multifunctional laparoscopic gynecological surgical instrument. BACKGROUND

[0002] Laparoscopic gynecological surgery has become the gold standard for myomectomy, total hysterectomy, and ovarian cyst stripping due to its fast postoperative recovery and minimal trauma. However, the success of the surgery highly depends on the performance of surgical instruments and the operating efficiency of the surgeon. In current clinical routine laparoscopic surgery, the surgeon needs to use a series of instruments with single functions to operate alternately, such as using separating forceps for blunt dissection and clamping of tissues, using a suction device to remove blood, exudate, and smoke in the surgical field, and occasionally using an electrocoagulation hook for hemostasis and cutting.

[0003] This traditional operating mode has several technical pain points:

[0004] In a complex step, such as the stripping of deep endometriosis lesions, the surgeon may need to exchange between separating forceps (for separating tissues), a suction device (for sucking up blood exudate to expose the surgical field), and an electrocoagulation device (for hemostasis) dozens or even hundreds of times. Each exchange requires in and out through the Trocar sleeve, not only significantly prolonging the operation time (which can prolong the total time by 15-20% on average), increasing the risk of anesthesia, but also increasing the potential risk of tissue damage and port implantation metastasis at the Trocar puncture site.

[0005] In surgeries with more bleeding, a clear surgical field is a prerequisite for safe operation. Under the traditional method, when the surgeon uses separating forceps to operate, he cannot simultaneously use suction, and blood and liquid will quickly flood the surgical field, forcing the surgeon to pause the separation and replace the suction device for cleaning. This discontinuity in operation breaks the smoothness of the surgery and affects the surgical rhythm, especially when dealing with important blood vessels and nerves, the momentary obstruction of the field of vision may cause secondary damage.

[0006] There are some instruments on the market that attempt to integrate multiple functions, but their design often fails to fundamentally solve the problem. For example: some instruments achieve function conversion by disassembling, rotating, or assembling parts, which is cumbersome and time-consuming in a tense surgical process, and cannot achieve "one-key" quick switching. The complex switching mechanism makes the handle of the instrument bulky, increasing the operating load and fatigue of the surgeon, affecting the precision and flexibility of the operation. Complex internal structure and movable joints are prone to form cleaning dead angles, making it difficult to perform thorough high-temperature high-pressure sterilization, and there is a risk of cross infection. SUMMARY

[0007] In view of the above deficiencies in the prior art, the multifunctional laparoscopic gynecological surgical instrument provided by the present application realizes seamless switching, efficient integration, and easy disinfection of functions such as suction and clamping.

[0008] To achieve the above object, the present application adopts the technical scheme of a multifunctional laparoscopic gynecological surgical instrument, comprising a handle assembly, a clamp rod connected with the handle assembly, a clamp head assembly arranged at the end of the clamp rod away from the handle assembly, and a suction assembly;

[0009] The clamp rod is in an elongated tubular structure, and the first channel and the second channel are arranged in parallel inside the clamp rod;

[0010] The clamp head assembly comprises a fixed clamp seat, a movable clamp petal, and a transmission connecting rod, one end of the transmission connecting rod is hinged to the middle rear part of the movable clamp petal through a first rotating shaft, and the other end of the transmission connecting rod extends to the end of the clamp rod close to the handle assembly;

[0011] The suction assembly comprises a suction tube and a suction head, the suction tube is arranged in the first channel, and the suction head is telescopically arranged at the distal end of the clamp rod and in communication with the distal end of the suction tube;

[0012] The handle assembly comprises a fixed handle, a pressure adjusting knob arranged on the fixed handle, and a function switching valve, the pressure adjusting knob is in transmission connection with the proximal end of the transmission connecting rod of the clamp head assembly to drive the movable clamp petal to rotate; an electric push rod is arranged at the end of the suction tube away from the suction head, and the function switching valve is connected with the electric push rod to drive the suction head to extend and retract along the axial direction of the clamp rod.

[0013] Further, in the multifunctional laparoscopic gynecological surgical instrument, the outer diameter of the clamp rod is not greater than 5 mm, and the length is 300 mm to 400 mm; the first channel is a suction channel, and the inner diameter is 1.5 mm; the second channel is an instrument channel, and the inner diameter is 1.0 mm.

[0014] Further, in the multifunctional laparoscopic gynecological surgical instrument, an anti-adhesion nano coating is arranged on the clamping surfaces of the fixed clamp seat and the movable clamp petal.

[0015] Further, in the multifunctional laparoscopic gynecological surgical instrument, a negative pressure adjusting knob is further arranged on the handle assembly, the negative pressure adjusting knob is connected in parallel with the function switching valve, and is used for continuously adjusting the negative pressure in the suction tube.

[0016] Further, in the multifunctional laparoscopic gynecological surgical instrument, a spring damping device is arranged between the clamp head assembly and the first channel.

[0017] The beneficial effects of the present application are that the instrument realizes seamless integration and rapid switching of the three functions of suction, separation and clamping, enabling the operator to complete mode conversion through the intelligent control module on the handle in one key without removing the sleeve, greatly improving the continuity and fluency of the operation. This design is especially suitable for complex surgeries such as uterine fibroid removal and deep endometrial ectopic lesion removal, which have high blood loss and high visual requirements. The operation does not need to be interrupted due to blurred vision or insufficient instrument function, and it is expected to shorten the operation time by more than 30%, while reducing the risk of infection and tissue damage caused by repeated entry of the instrument into the Trocar sleeve. The built-in spring damping device can dynamically balance the suction negative pressure and the clamping force of the jaws. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 Fig. 1 is a structural schematic diagram of the present instrument;

[0019] Fig. 2 Fig. 2 is a sectional structural schematic diagram of the present instrument;

[0020] Wherein: 1, handle assembly, 2, clamp rod, 3, clamp head assembly, 4, suction assembly, 5, first channel, 6, second channel, 7, clamp seat, 8, movable clamp valve, 9, transmission connecting rod, 10, first rotating shaft, 11, suction tube, 12, suction head, 13, fixed handle, 14, pressure adjusting knob, 15, function switching valve, 16, electric push rod, 17, negative pressure adjusting knob, 18, spring damping device. DETAILED DESCRIPTION

[0021] The specific embodiments of the present application are described below to facilitate understanding of the present application by those skilled in the art, but it should be clear that the present application is not limited to the scope of the specific embodiments. For those skilled in the art, it is obvious that various changes are within the spirit and scope of the present application as defined and determined by the appended claims, and all inventions utilizing the concept of the present application are within the scope of protection.

[0022] As shown in Figs. 1-2 the present embodiment provides a multifunctional laparoscopic gynecological surgical instrument. The instrument integrates the functions of a suction device and a separation clamp through highly integrated structural design, realizes rapid and seamless function switching in minimally invasive surgery, and improves surgical efficiency and operation safety.

[0023] The instrument includes a handle assembly 1, a clamp rod 2 connected to the handle assembly 1, a clamp head assembly 3 disposed at the end of the clamp rod 2 away from the handle assembly 1, and a suction assembly 4;

[0024] The clamp rod 2 is a slender tubular structure, and the first channel 5 and the second channel 6 are arranged side by side in the interior thereof;

[0025] The head assembly 3 comprises a fixed jaw 7, a movable jaw 8, and a transmission link 9. One end of the transmission link 9 is hingedly connected to the middle and rear part of the movable jaw 8 through a first rotating shaft 10, and the other end of the transmission link 9 extends to one end of the lever 2 close to the handle assembly 1.

[0026] The suction assembly 4 comprises a suction tube 11 and a suction head 12. The suction tube 11 is arranged in the first channel 5, and the suction head 12 is telescopically arranged at the distal end of the lever 2 and in communication with the distal end of the suction tube 11.

[0027] The handle assembly 1 comprises a fixed handle 13, a pressure adjusting knob 14 arranged on the fixed handle 13, and a function switching valve 15. The fixed handle 13 is ergonomically designed, and the surface is treated with anti-slip texture to ensure stable grip in a wet operating environment. The pressure adjusting knob 14 is located at the upper part of the handle and is connected to the head assembly 3 through a precise transmission mechanism, which is used to control the opening angle and clamping force of the movable jaw 8. The end of the suction tube 11 away from the suction head 12 is provided with an electric push rod 16, and the function switching valve 15 is connected with the electric push rod 16 to drive the suction head 12 to extend or retract along the axial direction of the lever 2. The function switching valve 15 is arranged on the side of the handle and is designed as a thumb pressing type to realize function mode switching under single hand operation. The negative pressure adjusting knob 17 is arranged in parallel with the function switching valve 15 to provide continuous negative pressure intensity adjustment function.

[0028] The lever 2 is made of medical grade 316L stainless steel and has an elongated tubular structure with an outer diameter controlled within 5 mm, fully meeting the requirements of standard laparoscopic Trocar cannula. The inside of the lever 2 adopts a double-channel parallel design: the suction channel has an inner diameter of 1.5 mm, providing sufficient liquid suction flow; the instrument channel has an inner diameter of 1.0 mm, used to accommodate the transmission link 9 and other control elements. This double-channel design ensures the maximum integration of functions in a limited space.

[0029] The fixed jaw 7 is fixedly connected to the distal end of the lever 2, and the movable jaw 8 is connected to the transmission link 9 through a rotating shaft mechanism. The maximum opening angle of the jaw can reach 120°, which can meet the needs of fine tissue clamping and achieve a wide range of blunt separation operation. The surface of the jaw is treated with a special anti-adhesion nano coating, which effectively reduces tissue adhesion and eschar formation, and is particularly suitable for long-term, multi-step complex surgical operations.

[0030] The suction tube 11 is made of flexible medical silicone material, which has good biocompatibility and pressure resistance. The suction head 12 adopts a conical design, and the opening at the end is specially optimized to ensure suction efficiency and avoid tissue damage caused by excessive suction. The unique telescopic mechanism allows the suction head 12 to extend or retract according to the needs of the operation, with a telescopic range of 5-15 mm, realizing precise suction in different surgical scenarios.

[0031] A spring damping device 18 is arranged between the jaw assembly 3 and the first channel 5, which is composed of a high-strength medical stainless steel spring, a hydraulic damper and a linkage adjustment mechanism. When the negative pressure suction is started, the device can automatically adjust the jaw clamping force through the linkage mechanism to prevent excessive tissue traction or damage caused by sudden increase of negative pressure.

Claims

1. A multi-functional laparoscopic gynecological surgical instrument, characterized by, The utility model relates to a medical suction forceps, which comprises a handle assembly (1), a clamp rod (2) connected with the handle assembly (1), a clamp head assembly (3) arranged at the end of the clamp rod (2) away from the handle assembly (1), and a suction assembly (4). The clamp rod (2) is in the shape of an elongated tube, and a first channel (5) and a second channel (6) are arranged in parallel inside the clamp rod (2). The clamp head assembly (3) comprises a fixed clamp seat (7), a movable clamp petal (8), and a transmission connecting rod (9). One end of the transmission connecting rod (9) is hingedly connected to the middle rear part of the movable clamp petal (8) through a first rotating shaft (10), and the other end of the transmission connecting rod (9) extends to the end of the clamp rod (2) close to the handle assembly (1). The suction assembly (4) comprises a suction tube (11) and a suction head (12). The suction tube (11) is arranged in the first channel (5), and the suction head (12) is telescopically arranged at the distal end of the clamp rod (2) and is in communication with the distal end of the suction tube (11). The handle assembly (1) comprises a fixed handle (13), a pressure adjusting knob (14), and a function switching valve (15) arranged on the fixed handle (13). The pressure adjusting knob (14) is in driving connection with the proximal end of the transmission connecting rod (9) of the clamp head assembly (3) to drive the movable clamp petal (8) to rotate. An electric push rod (16) is arranged at the end of the suction tube (11) away from the suction head (12), and the function switching valve (15) is connected with the electric push rod (16) to drive the suction head (12) to telescopically extend along the axial direction of the clamp rod (2).

2. The multi-functional laparoscopic gynecological surgical instrument as claimed in claim 1, wherein, The outer diameter of the clamp rod (2) is not greater than 5 mm, and the length is 300 mm to 400 mm. The first channel (5) is a suction channel, and the inner diameter is 1.5 mm. The second channel (6) is an instrument channel, and the inner diameter is 1.0 mm.

3. The multi-functional laparoscopic gynecological surgical instrument as claimed in claim 1, wherein, An anti-adhesion nano coating is arranged on the clamping surfaces of the fixed clamp seat (7) and the movable clamp petal (8).

4. The multi-functional laparoscopic gynecological surgical instrument as claimed in claim 1, wherein, A negative pressure adjusting knob (17) is further arranged on the handle assembly (1). The negative pressure adjusting knob (17) is connected in parallel with the function switching valve (15) and is used for continuously adjusting the negative pressure in the suction tube (11).

5. The multi-functional laparoscopic gynecological surgical instrument as claimed in claim 1, wherein, A spring damping device (18) is arranged between the clamp head assembly (3) and the first channel (5).

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