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CN-121987326-A - Multifunctional puncture suspension instrument

CN121987326ACN 121987326 ACN121987326 ACN 121987326ACN-121987326-A

Abstract

The invention discloses a multifunctional puncture suspension instrument which comprises an inner rod, a handle assembly and a shaft tube, wherein the handle assembly comprises an L-shaped handle and a movable handle, the movable handle can rotate at one side of the L-shaped handle far away from the shaft tube, the inner rod is arranged in the shaft tube in a sliding manner, the far end of the L-shaped handle is rotationally connected with a hand wheel, a conversion sleeve is slidably arranged on a tube body at the far end of the hand wheel, the conversion sleeve is connected with the near end of the shaft tube, the L-shaped handle is provided with a sliding groove and a conversion push button capable of moving along the sliding groove, the profile of the movable handle close to the conversion push button is constructed into a ratchet wheel, a clamping strip is arranged between the conversion push button and the ratchet wheel, the far end of the clamping strip is close to the near end of the shaft tube, the near end of the clamping strip is provided with a protruding part matched with the ratchet wheel, the far end of the inner rod is connected with a jaw assembly, and the jaw assembly is respectively closed and opened when the inner rod is pulled to the near end and pushed to the far end by the movable handle relative to the shaft tube. The invention can realize the switching of various states of the puncture outfit, and has simple structure and convenient operation.

Inventors

  • SHEN XIAN
  • HUANG DONGDONG
  • YANG XINXIN
  • HU YUANBO
  • ZHANG WEITENG
  • Yuan Zhenshi
  • CHEN HAO

Assignees

  • 温州医科大学附属第一医院
  • 元创医学技术(江苏)有限公司

Dates

Publication Date
20260508
Application Date
20260209

Claims (7)

  1. 1. The utility model provides a multifunctional puncture suspension instrument, including interior pole (17), handle subassembly and central siphon (6), handle subassembly includes L type handle and movable handle (11), L type handle is constructed to be the casing (16) and the portion of gripping (1) that the angle is crisscross continuous, a serial communication port, the distal end rotation connection hand wheel (3) of portion of gripping (1) are kept away from to casing (16), the distal end of hand wheel (3) has elongated body (24), conversion cover (4) slidable installs on body (24), conversion cover (4) connect the proximal end of central siphon (6), the first end of movable handle (11) is embedded in casing (16) and is connected with fixed axle (18) rotation in casing (16), can be in L type handle one side of keeping away from central siphon (6) around fixed axle (18) rotation, interior pole (17) slidable sets up in central siphon (6), one side of casing (16) back to portion of gripping (1) is equipped with spout (20) and can follow the conversion handle (2) that spout (20) removed, the first end of movable handle (11) is close to ratchet (14) is constructed by ratchet (14) between the fixed axle (14) and movable handle (14), the clamping block (19) can rotate around an axis parallel to the fixed shaft (18), the proximal end of the inner rod (17) penetrates through the conversion sleeve (4) and the hand wheel (3) to be embedded into a cylindrical groove of the clamping block (19), the axis of the cylindrical groove is orthogonal with the rotation center shaft of the clamping block (19), the inner rod (17) can rotate in the cylindrical groove and is limited by the cylindrical groove to axially displace along the inner rod (17), the tooth tip of the ratchet wheel (14) faces the distal end of the L-shaped handle, a clamping strip (12) is arranged between the conversion push button (2) and the ratchet wheel (14) in the shell (16), the distal end of the clamping strip (12) is close to the proximal end of the shaft tube (6) and is fixed with the shell (16), the proximal end of the clamping strip (12) is provided with a protruding part (15) which can be matched with the ratchet wheel (14), when the conversion push button (2) moves to the proximal end of the chute, one side of the conversion push button (2) pushes the proximal end of the clamping strip (14) to be embedded into the tooth space of the ratchet wheel (14), when the conversion push button (2) moves to the distal end of the chute, the conversion push button (2) to the distal end of the chute, the distal end of the conversion push the ratchet wheel (2) to the proximal end of the ratchet wheel (12) to be matched with the inner end of the ratchet wheel (14), the inner rod (17) by the side of the inner rod (17), the inner end of the clamping component is far away from the profile of the side (17), the jaw assembly (7) is closed and opened when the inner rod (17) is pulled proximally and pushed distally relative to the shaft tube (6) by the movable handle (11), respectively.
  2. 2. A multifunctional piercing suspension instrument according to claim 1, characterized in that the locking strip (12) has an elongated rigid trunk and is bent into an angularly intersecting proximal section (22) and distal section (23), the proximal section (22) being closer to the switch push button (2), the switch push button (2) being further connected to an F-shaped fork (13) in the housing (16), the F-shaped fork (13) being formed by one vertical arm (25) and two transversely extending cross arms (26), the switch push button (2) being connected to an end of the vertical arm (25) remote from the cross arms (26), the locking strip (12) being arranged between the two cross arms (26), the cross arms (26) being closer to the switch push button (2) pushing the proximal section (22) of the locking strip (12) when the switch push button (2) is moved to the proximal end of the chute, causing the proximal end of the locking strip (12) to engage the ratchet (14) further from the proximal end of the switch push button (2) pushing the cross arms (12) further from the distal end of the ratchet (14).
  3. 3. A multifunctional piercing suspension instrument according to claim 1, characterized in that the jaw assembly (7) comprises an upper jaw (7 a) and a lower jaw (7 b), the proximal ends of the upper jaw (7 a) and the lower jaw (7 b) are both connected with the distal end of an inner rod (17), the upper jaw (7 a) and the lower jaw (7 b) are both elastic elongated rods bent away from each other, and the distal ends of the upper jaw (7 a) and the lower jaw (7 b) are configured with mutually anastomotic teeth on opposite sides.
  4. 4. A multifunctional piercing suspension instrument according to claim 1, characterized in that the distal end of the shaft tube (6) is configured as a cone-shaped piercing tube.
  5. 5. The multifunctional puncture suspension instrument according to claim 4, wherein the distal end of the tube body (24) is provided with an annular protruding part, the distal end and the proximal end of the conversion sleeve (4) are respectively provided with radial holes which are symmetrical along the axial direction, a forward push button (41) and a backward pull button (42) are respectively arranged in the radial holes at the distal end and the proximal end, and the positions of the conversion sleeve (4) on the tube body (24) can be limited when the forward push button (41) and the backward pull button (42) are pressed into the radial holes.
  6. 6. The multifunctional puncture suspension instrument according to claim 1, wherein the shaft tube (6) is further sleeved with an annular locking component (5), and a back adhesive is arranged on the side, facing away from the jaw component (7), of the locking component (5).
  7. 7. The multifunctional puncture suspension instrument according to claim 1, wherein conductors are selected for the jaw assembly (7) and the inner rod (17), an insulating layer is coated on the surface of the inner rod (17), a wire (26) and a conductive sheet (25) are arranged in the shell (16), the conductive sheet (25) is electrically connected with the proximal end of the inner rod (17), the conductive sheet (25) is electrically connected with one end of an electrode head (27) embedded in the shell (16) through the wire (26), and the electrode head (27) is electrically connected with a high-frequency energy generator through a cable.

Description

Multifunctional puncture suspension instrument Technical Field The invention relates to the technical field of medical instruments, in particular to a multifunctional puncture suspension instrument. Background With the continuous development of modern medical technology, minimally invasive surgery has become an important development direction of clinical surgical treatment due to the remarkable advantages of small wound, quick recovery, short hospitalization time, few postoperative complications and the like. Endoscopic surgery, as a typical representative of minimally invasive surgery, has been widely used in a variety of fields including general surgery, urology, gynecology, chest surgery, and the like. The technique is characterized in that a plurality of puncture channels are established on the body surface of a patient, a cavity lens and various surgical instruments are placed in the body, and the operations of tissue observation, cutting, suturing, hemostasis and the like are completed under the visualization condition. However, there are still several technical bottlenecks with existing laparoscopic surgical systems. Conventional piercers (trocurs) typically require the creation of piercing passageways of varying diameters from 5mm to 12mm to accommodate different gauges of surgical instruments. Although the trauma has been greatly reduced compared to open surgery, such puncture holes still inevitably cause skin and subcutaneous tissue damage, often leaving visible scars after surgery, affecting aesthetics, especially in young patients or in places with high cosmetic requirements (such as face, neck, abdomen, etc.). In addition, the larger puncture passageway may also increase the risk of intra-operative gas leakage, post-operative incision hernias, infection, pain, etc., limiting the realization of a truly "non-invasive" or "nearly non-invasive" surgical concept. At present, although some miniature puncture devices (such as 3mm or smaller) are used for specific examination or simple operation, the miniature puncture devices have single structure and limited functions, are difficult to be compatible with various surgical instruments, and lack adaptive designs for different tissue types (such as fat, fascia, muscles, visceral envelope and the like). Especially in complex operations requiring multiple access or continuous operation, the micro-puncture device often has difficulty in meeting clinical requirements due to insufficient strength, poor tightness or poor operation stability. The puncture outfit for the disposable auxiliary endoscope operation disclosed by the prior art CN113679452A is matched with the clamping module, the puncture inner rod can be completely retracted into the puncture outer rod by moving the outer sleeve forwards, so that the instrument is in a puncture state, after the puncture is finished, the instrument is returned to a use state, the puncture outfit can be switched between the puncture state and the use state, but the puncture outfit is in a single mode in the use state, the use requirements in different clinical scenes cannot be met, the clamping action is triggered only once in the case of quick biopsy or single sampling, and the instrument is required to be stably maintained and support continuous operation when the jaws are required to be repeatedly opened and closed, tissues are continuously pulled or fine dissection is carried out. The lack of a distinguishing and adapting mechanism for the two use modes in the prior art results in limited operation flexibility and affects operation efficiency and safety. Disclosure of Invention The invention provides a multifunctional puncture suspension instrument which can realize the switching between a puncture state and a use state and the switching between single use and multiple use. In order to achieve the above purpose, the technical scheme of the invention is as follows: A multifunctional puncture suspension instrument comprises an inner rod, a handle assembly and a shaft tube, wherein the handle assembly comprises an L-shaped handle and a movable handle, the L-shaped handle is configured to be a shell and a holding part which are connected in an angle crossing way, the far end of the shell, which is far away from the holding part, is rotationally connected with a hand wheel, the far end of the hand wheel is provided with a slender tube body, a conversion sleeve is slidably arranged on the tube body, the conversion sleeve is connected with the near end of the shaft tube, the first end of the movable handle is embedded into the shell and is rotationally connected with a fixed shaft in the shell, the side, which is far away from the shaft tube, of the L-shaped handle can rotate around the fixed shaft, the inner rod is slidably arranged in the shaft tube, the side, which is away from the holding part, of the shell is provided with a sliding groove and a conversion push button which can move along the sliding groove, the cont