Compatible reverse buckling type rapid tissue crushing rotary cutting tool for laparoscope

Abstract

The utility model discloses a laparoscope compatible reverse buckling type rapid tissue crushing rotary cutting tool which is characterized in that the tool is composed of a large-diameter tool tube, a supporting ring, a standard connecting tube, a driving base, an anti-disengaging ring and a sealing cap, the wide-opening end of the supporting ring is connected with the large-diameter tool tube, the other end of the supporting ring is connected with the standard connecting tube, the driving base is installed at one end of the standard connecting tube, and the anti-disengaging ring is installed at the other end of the standard connecting tube; an anti-disengaging ring and a sealing cap are arranged on the driving base, the large-diameter knife tube is of a hollow tubular structure and is a cutting storage tube, the periphery of the opening end of the large-diameter knife tube is a sharp blade, the large-diameter knife tube and the small-diameter standard connecting tube are coaxial, the driving base is of an annular structure, a sealing cap clamping base, an anti-disengaging ring external thread, a driving clamping groove and a limiting face are arranged on the periphery of the driving base, and an inner hole is connected with the standard connecting tube. The driving clamping groove can be embedded into clamping teeth of the small-caliber electric base, an anti-disengagement ring external thread of the driving base is rotationally connected with an anti-disengagement ring internal thread, the sealing cap is installed on the sealing cap clamping base, an instrument can enter the sealing cap for sealing, and the effect that the standard electric base is matched with a large-caliber knife tube to rapidly smash tissue can be achieved.

Description

Technical Field

[0001] This invention relates to devices for assisting laparoscopic surgery. Background Technology

[0002] Laparoscopic surgery is a minimally invasive treatment method that involves inserting instruments through a tiny incision in the patient's abdominal wall for observation and cutting. Large pieces of diseased tissue or solid organs removed from the abdominal cavity are typically fragmented and removed using a motorized tissue fragmentation device. Due to the small size of the abdominal wall incision, a small-diameter rotary tissue fragmentation tube is currently used. This small-diameter rotary tissue fragmentation tube is inserted into a matching small-diameter outer tube of a motorized base, and the locking mechanism rotates coaxially to cut the diseased tissue and organ. This method is widely used clinically, effectively ensuring minimally invasive and aesthetically pleasing abdominal wall surgery. The small-diameter motorized base is lightweight and convenient to use; however, cutting and fragmenting large pieces of tissue with the small-diameter tube is time-consuming. With the development of laparoscopic technology, vaginal-assisted laparoscopic surgery, utilizing a large-diameter incision deep within the vagina, has made the clinical application of large-diameter rotary tissue fragmentation tubes possible, potentially enabling rapid fragmentation and removal. However, the large-diameter rapid tissue fragmentation rotary tissue fragmentation tube is not yet compatible with the currently widely used small-diameter standard motorized base, limiting its clinical application.

[0003] Because small-diameter electric bases are lightweight and convenient for clinical use and are purchased in large quantities by hospitals, it is of clinical application value to innovate and develop a large-diameter tissue fragmentation rotary cutter tube compatible with the small-diameter electric base in order to make full use of the existing small-diameter electric bases. Summary of the Invention

[0004] To overcome the shortcomings of the existing technology, this invention provides a laparoscopic compatible reverse-loop rapid tissue fragmentation and cutting tool. One end uses a large-diameter blade to meet the clinical need for fragmenting large pieces of diseased tissue, while the other end uses a uniform small-diameter connector that is reverse-inserted into a small-diameter electric base. A protective device is added to prevent the rapidly rotating blade from falling off and damaging normal organs. The large-diameter blade is compatible with tumor-free protective bags, sealed protective channels, blade cutting protective sheaths, and expansion sealing plugs, achieving minimally invasive, tumor-free, and highly efficient tissue removal.

[0005] The present invention adopts the following technical solution to solve the technical problem:

[0006] 1. A laparoscopic-compatible reverse-loop rapid tissue fragmentation and rotary cutting tool, characterized by a large-diameter blade, a support ring, a standard connecting tube, a drive base, an anti-detachment ring, and a sealing cap. The wide end of the support ring is connected to the large-diameter blade, and the other end is connected to the standard connecting tube. One end of the standard connecting tube is equipped with a drive base, which is equipped with an anti-detachment ring and a sealing cap. The large-diameter blade is compatible with tumor-free protective bags, sealed protective channels, blade rotary cutting protective sheaths, and expansion sealing plugs, achieving minimally invasive, tumor-free, and highly efficient tissue removal.

[0007] 2. Laparoscopic compatible reverse-loop rapid tissue fragmentation rotary cutter, characterized by a large-diameter hollow tubular structure for cutting and receiving, with a sharp blade around the opening end and a wide-mouth end connected to a support ring at the other end. The cutter tube diameter is adapted to the sealing and protection channel, the cutter rotary cutting protection sheath, and the self-sealing gas-blocking integrated sealing cap configured at the tail of the expansion sealing plug.

[0008] 3. A laparoscopic compatible reverse-loop rapid tissue fragmentation rotary cutter, characterized in that the support ring is provided with a cross-sectional plate, the cross-sectional plate is provided with a central circular hole, the periphery of the central circular hole is connected to the proximal circular hole of the small-diameter standard connector, the diameter of the central hole is the same as the diameter of the small-diameter standard connector, and the large-diameter blade tube is coaxial with the small-diameter standard connector.

[0009] 4. A laparoscopic compatible reverse-loop rapid tissue fragmentation and rotary cutting tool, characterized by a small-diameter standard connector with a hollow tubular structure, one end connected to a support ring of a large-diameter blade tube, and the other end connected to a drive base, with the large-diameter blade tube, support ring, and drive base coaxial.

[0010] 5. A laparoscopic compatible reverse-locking rapid tissue fragmentation and rotary cutting tool, characterized in that the drive base is an annular structure with a sealing cap holder, an anti-dislodgement ring external thread, a drive groove, and a limiting surface on its outer periphery. The inner hole connects to a standard connecting pipe. The drive groove can be engaged with the locking teeth of a small-diameter electric base. The anti-dislodgement ring external thread of the drive base is rotatably connected to the anti-dislodgement ring internal thread. The sealing cap is installed on the sealing cap holder to allow the instrument to enter and seal.

[0011] Compared with existing technologies, the beneficial effects of this invention are reflected in:

[0012] By making full use of the existing small-diameter standard electric tissue grinder base, clinical application with compatibility and adaptation to large-diameter blades has been achieved.

[0013] The large-diameter blade cannula makes incisions through natural cavities such as the vagina, and comes with a matching compatible tumor-free protective bag, a sealed protective channel, a blade rotary cutting protective sheath, and an expansion sealing plug, achieving minimally invasive tumor-free protection, improving the efficiency of fragmenting and removing diseased tissues and organs, shortening the operation time, and making the patient safer.

[0014] The small-diameter electric tissue shredder base is lightweight and convenient, making it popular among surgeons and widely used. This invention gives it a faster shredding function, saving companies and hospitals huge costs for developing, producing, and purchasing "large-diameter electric tissue shredder bases". Attached Figure Description

[0015] Figure 1 Schematic diagram of the structural principle of a laparoscopic compatible reverse-loop rapid tissue fragmentation and rotary cutting tool.

[0016] Figure 2Diagram illustrating the principle of a sealed protective channel with a nodule-free protective bag inserted and an expansion sealing plug inserted.

[0017] Figure 3 Schematic diagram of the clinical application principle of laparoscopic compatible reverse-loop rapid tissue fragmentation and cutting tool Detailed Implementation

[0018] This case uses a laparoscopic vaginal hysterectomy as an example.

[0019] After the patient is anesthetized and disinfected, a total hysterectomy is performed laparoscopically. After vaginal disinfection with povidone-iodine, a sealed protective channel 3 with a self-sealing gas-blocking integrated device and a sealed cap is inserted. The tumor-free protective bag 5 is fitted with an expansion sealing plug 3 and then inserted into the sealed protective channel 3. The bag opening is opened, and an auxiliary channel is used to enter and grasp tissue into the bag. The bag opening is pulled back to 2 cm outside the opening of the sealed protective channel 3. The bag opening is then opened again, and a cutting protective sheath 2 with a self-sealing gas-blocking integrated device and a sealed cap is inserted. The abdominal puncture channel pulls the 5 mm auxiliary sheath 541 and the 10 mm endoscope sheath 542 of the tumor-free protective bag to the outside of the abdominal wall. After removing the sheath caps, the puncture base 9 is replaced, and the tumor-free protective bag is inflated to form an artificial isolation and protection of the small abdominal cavity 54. The endoscope and auxiliary instruments are then inserted into the channels.

[0020] After the sealing cap 16 is installed on the sealing cap holder 145, it is inserted into the drive hole from the front end of the electric motor handle 7 until the drive handle pin reaches the limiting surface 143 of the drive base 14. The large-diameter knife tube is rotated and finely adjusted until the pin is engaged in the drive slot 142. The external thread 141 of the anti-disengagement ring of the drive base and the internal thread 151 of the anti-disengagement ring are rotated and tightened. The tissue gripping forceps 8 are inserted into the large knife tube 1 with the sealing cap 16.

[0021] The large blade tube 1, along with the instrument, is inserted into the blade rotary cutting protective sheath 2. The instrument grasps and stretches the tissue 6 and drags it to the incision 111 of the large blade tube. The auxiliary instrument enters from the base 541 to grasp the tissue and prevent it from rotating. Press the motor drive switch, and the large blade tube 1 rotates to cut the tissue into the excision and collection tube 113. The large blade tube 1 and the tissue grasping forceps 8 are pulled out from the blade rotary cutting protective sheath 2. At this time, the self-sealing gas-blocking integrated device of the blade rotary cutting protective sheath 2 seals the gas-blocking device. The tissue grasping forceps 8 are pushed out of the abdominal cavity to push the tissue in the excision and collection tube 113 out of the large blade tube 1. This step can efficiently remove the tissue in the bag by going back and forth.

[0022] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any equivalent transformations or modifications made to the present invention without departing from the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A laparoscopic-compatible reverse-loop rapid tissue fragmentation and rotary cutting tool, characterized by: It consists of a large-diameter blade tube, a support ring, a standard connector, a drive base, an anti-detachment ring, and a sealing cap. The wide end of the support ring is connected to the large-diameter blade tube, and the other end is connected to the standard connector. One end of the standard connector is equipped with a drive base, which is equipped with an anti-detachment ring and a sealing cap. The large-diameter blade tube is compatible with tumor-free protective bags, sealed protective channels, blade rotary cutting protective sheaths, and expansion sealing plugs, achieving minimally invasive, tumor-free, and highly efficient tissue removal.

2. The laparoscopic compatible reverse-loop rapid tissue fragmentation and cutting tool according to claim 1, characterized in that: The large-diameter blade tube has a hollow tubular structure and serves as a cutting and storage tube. The open end has a sharp blade around its perimeter, while the other end is connected to a support ring with a wide opening. The blade tube diameter is compatible with the sealing and protection channel, the blade rotary cutting protection sheath, and the self-sealing gas-blocking integrated sealing cap configured at the tail of the expansion sealing plug.

3. The laparoscopic compatible reverse-loop rapid tissue fragmentation and cutting tool according to claim 1, characterized in that: The support ring is provided with a cross-sectional plate, and the cross-sectional plate is provided with a central circular hole. The periphery of the central circular hole is connected to the proximal circular hole of the small-diameter standard connector. The diameter of the central hole is the same as the diameter of the small-diameter standard connector. The large-diameter knife tube is coaxial with the small-diameter standard connector.

4. The laparoscopic compatible reverse-loop rapid tissue fragmentation and cutting tool according to claim 1, characterized in that: The small-diameter standard connector is a hollow tubular structure, with one end connected to the support ring of the large-diameter knife tube and the other end connected to the drive base. The large-diameter knife tube, support ring and drive base are coaxial.

5. The laparoscopic compatible reverse-loop rapid tissue fragmentation and cutting tool according to claim 1, characterized in that: The drive base is a ring-shaped structure with a sealing cap holder, an anti-disengagement ring external thread, a drive groove, and a limiting surface on its outer periphery. The inner hole connects to a standard pipe. The drive groove can be engaged with the teeth of a small-diameter electric base. The anti-disengagement ring external thread of the drive base is rotatably connected to the anti-disengagement ring internal thread. The sealing cap is installed on the sealing cap holder to allow the instrument to enter and seal.

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