CN110680472A - Detachable visual ultra-micro wound negative pressure stone removal device - Google Patents

Detachable visual ultra-micro wound negative pressure stone removal device Download PDF

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Publication number
CN110680472A
CN110680472A CN201910967289.7A CN201910967289A CN110680472A CN 110680472 A CN110680472 A CN 110680472A CN 201910967289 A CN201910967289 A CN 201910967289A CN 110680472 A CN110680472 A CN 110680472A
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obturator
assembly
puncture needle
puncture
detachable
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CN201910967289.7A
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CN110680472B (en
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万肖蓬
瞿星辉
舒杰
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GUANGZHOU WELL LEAD MEDICAL INSTRUMENTS CO Ltd
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GUANGZHOU WELL LEAD MEDICAL INSTRUMENTS CO Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3403—Needle locating or guiding means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
    • A61B90/361—Image-producing devices, e.g. surgical cameras
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00902—Material properties transparent or translucent
    • A61B2017/00915—Material properties transparent or translucent for radioactive radiation
    • A61B2017/0092—Material properties transparent or translucent for radioactive radiation for X-rays
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00902—Material properties transparent or translucent
    • A61B2017/00924—Material properties transparent or translucent for ultrasonic waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22079—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with suction of debris
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3403—Needle locating or guiding means
    • A61B2017/3413—Needle locating or guiding means guided by ultrasound
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B2017/3454—Details of tips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
    • A61B90/361—Image-producing devices, e.g. surgical cameras
    • A61B2090/3614—Image-producing devices, e.g. surgical cameras using optical fibre

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Vascular Medicine (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention discloses a detachable visual ultramicro-wound negative-pressure stone removing device, which comprises a puncture needle assembly, a hole closing device assembly, a sheath tube assembly, a detachable superfine mirror assembly and a fiberscope, wherein the puncture needle assembly is arranged on the puncture needle assembly; the sheath tube assembly is provided with a sheath tube and a sheath tube joint arranged at one end of the sheath tube, and the sheath tube joint comprises a device connecting cavity and a negative pressure connecting cavity; the obturator assembly is provided with an obturator and an obturator connector arranged at one end of the obturator, the puncture needle assembly sequentially penetrates through the obturator connector and the obturator and is detachably connected with the obturator connector to form a puncture kit, and the fiberscope extends into the puncture needle assembly and is detachably connected with the puncture needle assembly to form a visual puncture structure. The invention can realize the whole visual process of the puncture process, adopts the detachable superfine lens to carry out stone breaking, leads the stone removing operation to be more minimally invasive, simplifies the operation, reduces the pain of patients, shortens the recovery time and improves the safety of the minimally invasive stone removing operation.

Description

Detachable visual ultra-micro wound negative pressure stone removal device
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a detachable visual ultramicro wound negative pressure stone removing device.
Background
The stone generally has a core consisting of exfoliated epithelial cells, bacterial mass, parasite eggs or bodies, fecal mass or foreign matter, and inorganic salts or organic matter deposited layer by layer on the core. The mechanism of calculus formation is different in composition, shape, texture, and influence on the body, etc. depending on the organs involved. In general, calculus can cause obstruction of the lumen, affecting the drainage of fluid from the affected organ, causing symptoms such as pain, bleeding or secondary infection. Minimally invasive stone removal is a common means among existing treatment means. When carrying out wicresoft through surgical operation apparatus and removing stone, owing to receive the restriction of current integral type endoscope size, the passageway sheath that matches and use is big, need puncture earlier in the art, under the guide wire guide after the puncture, expand rearmounted sheath pipe step by step, and the operation is complicated, and is great to the patient damage.
Disclosure of Invention
The invention aims to provide a detachable visible ultra-minimally invasive negative pressure stone removing device which can effectively simplify the operation, reduce the pain of a patient, shorten the recovery time and improve the safety of a minimally invasive stone removing operation.
In order to realize the purpose, the invention provides a detachable visual ultramicro-invasive negative-pressure stone removing device, which comprises a puncture needle assembly for puncture, a hole closing device assembly detachably connected with the puncture needle assembly, a sheath tube assembly detachably connected with the hole closing device assembly, a detachable superfine mirror assembly detachably connected with the sheath tube assembly and a fiberscope detachably connected with the detachable superfine mirror assembly; the sheath tube assembly is provided with a sheath tube and a sheath tube joint arranged at one end of the sheath tube, and the sheath tube joint comprises a device connecting cavity used for being detachably connected with the hole closing device assembly or the detachable superfine mirror assembly and a negative pressure connecting cavity used for being detachably connected with a negative pressure source; the obturator assembly is provided with an obturator and an obturator connector arranged at one end of the obturator, the puncture needle assembly sequentially penetrates through the obturator connector and the obturator and is detachably connected with the obturator connector to form a puncture kit used for puncture expansion, simplifying a puncture expansion process and improving puncture rigidity, and the fiberscope extends into the puncture needle assembly and is detachably connected with the puncture needle assembly to form a visual puncture structure.
Preferably, the detachable superfine mirror assembly comprises a multi-cavity pipe and a multi-cavity pipe connector, wherein the multi-cavity pipe connector is used for guiding the laser fiber, the fiberscope, the calculus removing net basket, the guide wire and flushing water, the multi-cavity pipe connector is arranged at one end of the multi-cavity pipe, the multi-cavity pipe connector is detachably connected with a locking connector used for fixing the laser fiber, the fiberscope, the calculus removing net basket and the guide wire, and the multi-cavity pipe connector is also detachably connected with a multi-channel connector; the multi-chamber union coupling head outside sets up in the handle, the protective sheath pipe is connected with the handle.
Preferably, the multi-channel joint is a three-way joint or a multi-channel joint.
Preferably, the multi-lumen tube is provided with at least two lumens, and the multi-lumen tube is provided with a circular or oval shape.
Preferably, the obturator connector is provided with at least two connecting ports for respectively connecting with the puncture needle assembly and the negative pressure source; the inner diameter of the obturator is 1-2mm, the obturator is made of medical metal or high molecular materials, and the obturator is provided with a tip for enhancing the X-ray and B-ultrasonic developing effects.
Preferably, the puncture needle assembly comprises a puncture needle, a puncture needle connector arranged at one end of the puncture needle and used for being detachably connected with the obturator assembly through threads, and a puncture needle tip arranged at the other end of the puncture needle and used for puncturing, and the fiberscope extends into the puncture needle through the puncture needle connector and is detachably connected with the obturator connector to form a visual puncture structure.
Preferably, the puncture needle tip is of a bevel or conical shape.
Preferably, the inner diameter of the sheath tube is 2-5mm, the sheath tube is made of medical metal or high polymer material and is provided with a tip for enhancing the X-ray and B-ultrasonic developing effect.
Preferably, the outer diameter of the fiberscope is 0.5-1mm, and the fiberscope is provided with an active light source interface and a display interface.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through the matching of the sheath tube component and the detachable superfine mirror component, the laser fiber and the fiberscope can be detachably installed, and meanwhile, the negative pressure suction function is added, so that the calculus is sucked at the sheath tube opening by the negative pressure, and the calculus is sucked out of the body while being crushed, thereby effectively simplifying the operation, reducing the pain of a patient, shortening the recovery time and improving the safety of the minimally invasive calculus removing operation; meanwhile, the obturator component and the puncture needle set form a puncture kit, so that the rigidity of the puncture needle can be effectively improved, the direction of the puncture needle can be conveniently adjusted in a body, and the problem of bending of the puncture needle is solved. According to the invention, the visible puncture structure is formed by the puncture kit and the fiberscope, so that the whole puncture process is visible, blood vessels are prevented from being punctured, and the safety and the effectiveness of the puncture process are ensured. In the invention, the tip of the puncture needle, the obturator and one end of the sheath tube in the body are all provided with the enhanced effect of X-ray and B-ultrasonic development, thereby ensuring the accuracy of puncture and positioning.
Drawings
FIG. 1 is a schematic view of the trocar assembly, obturator assembly and sheath assembly mounting arrangement of the present invention;
FIG. 2 is a schematic illustration of the construction of the needle assembly of the present invention;
FIG. 3 is a schematic diagram of the obturator assembly of the present invention;
FIG. 4 is a schematic view of a sheath assembly according to the present invention;
FIG. 5 is a schematic diagram of a removable micro mirror assembly according to the present invention;
FIG. 6 is a schematic view of a fiberscope structure according to the present invention;
fig. 7 is a schematic diagram of an exploded view of a removable micro mirror assembly according to the present invention.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1-7, the invention provides a detachable visual ultramicro-invasive negative-pressure stone removing device, which comprises a puncture needle assembly 1 for puncture, an obturator assembly 3 detachably connected with the puncture needle assembly 1, a sheath assembly 2 detachably connected with the obturator assembly 3, a detachable superfine mirror assembly 4 detachably connected with the sheath assembly 2, and a fiberscope 5 detachably connected with the detachable superfine mirror assembly 4; the sheath tube component 2 is provided with a sheath tube 21 and a sheath tube joint 22 arranged at one end of the sheath tube 21, and the sheath tube joint 22 comprises a device connecting cavity 221 used for being detachably connected with the obturator component 3 or the detachable superfine lens component 4 and a negative pressure connecting cavity 222 used for being detachably connected with a negative pressure source; the obturator assembly 3 is provided with an obturator 31 and an obturator connector 32 arranged at one end of the obturator 31, the puncture needle assembly 1 sequentially penetrates through the obturator connector 32 and the obturator 31 and is detachably connected with the obturator connector 32 to form a puncture kit for puncture expansion, puncture expansion process simplification and puncture rigidity improvement, the fiberscope 5 extends into the puncture needle assembly 1 and is detachably connected with the puncture needle assembly 1 to form a visual puncture structure, wherein in the puncture process, flushing can be carried out in the puncture needle, the obturator absorbs water, flushing circulation is realized, and the visual field of the puncture process is ensured to be clear.
The inner diameter of the sheath 21 is 2-5mm, the sheath 21 is made of medical metal or polymer material and the sheath 21 is provided with a tip for enhancing the X-ray and B-ultrasonic imaging effects. The outer diameter of the fiberscope 5 is 0.5-1mm, and the fiberscope 5 is provided with an active light source interface and a display interface.
The detachable superfine mirror assembly 4 comprises a multi-cavity pipe 41 for guiding the laser fiber, the fiberscope 5, the stone extraction net basket, the guide wire and flushing water and a multi-cavity pipe connector 46 arranged at one end of the multi-cavity pipe 41, the multi-cavity pipe connector 46 is detachably connected with a locking connector 42 for fixing the laser fiber, the fiberscope 5, the stone extraction net basket and the guide wire, and the multi-cavity pipe connector 46 is also detachably connected with a multi-channel connector 43; a sheath tube 44 for preventing the multi-cavity tube 41 from being broken and operating and positioning is sleeved outside the multi-cavity tube 41, a handle 45 is arranged outside the multi-cavity tube connector 46, and the sheath tube 44 is connected with the handle 45. The multi-channel joint 43 is a three-way joint or a multi-channel joint. The multilumen tubing 41 is provided with at least two lumens, and the multilumen tubing 41 is provided with a circular or oval shape.
In this embodiment, the negative pressure source may be a hospital-centric negative pressure. The sheath tube 44 can be made of medical metal material or polymer material, and the handle 45 can be made of polymer material. The multi-channel connector 43 may be connected to a source of negative pressure or used for flushing or other operations. Can dismantle superfine mirror and carry out the rubble through multi-chamber pipe 41 and can make clear stone operation wicresoft more, draw at the sheath mouth of pipe 21 through negative pressure calculus at the rubble and go on for the rubble is safer, and the setting up of multi-chamber pipe 41, multichannel joint 43 makes rubble in-process negative pressure adjust and bath convenience simultaneously, and the simplified operation.
The obturator connector 32 is provided with at least two connectors for respectively connecting with the puncture needle assembly 1 and a negative pressure source; the inner diameter of the obturator 31 is 1-2mm, the obturator 31 is made of medical metal or high molecular material and the obturator 31 is provided with a tip for enhancing the X-ray and B-ultrasonic developing effects. The puncture needle assembly 1 comprises a puncture needle 11, a puncture needle connector 12 arranged at one end of the puncture needle 11 and used for being detachably connected with the obturator assembly 3 in a threaded manner, and a puncture needle tip 13 arranged at the other end of the puncture needle 11 and used for puncturing, wherein the fiberscope 5 extends into the puncture needle 11 through the puncture needle connector 12 and is detachably connected with the obturator connector 32 to form a visual puncture structure. The needle tip 13 is beveled or conical or otherwise shaped.
In the present embodiment, the puncture needle tip 13 is also provided as a tip for enhancing the X-ray and B-ultrasonic imaging effects, ensuring the accuracy of puncture and positioning. The puncture kit formed by combining the puncture needle assembly 1 and the obturator assembly 3 can perform one-step puncture expansion, simplify the puncture expansion process, enhance the rigidity of the puncture needle 11, facilitate the direction adjustment of the puncture needle 11 in the body and overcome the problem of bending of the puncture needle; in the process of puncture, the puncture needle 11 is flushed, the obturator 31 absorbs water, and through flushing circulation, the clarity of the puncture visual field is guaranteed. In addition, during the puncture process, the fiberscope 5 is placed in the puncture needle 11, the whole process of the puncture process is visible, the puncture needle 11 is prevented from puncturing blood vessels, and the safety and the effectiveness of the puncture process are ensured.
In the embodiment, when in use, the puncture needle assembly 1, the obturator assembly 3 and the fiberscope 5 are used for visual puncture to position the sheath assembly 2 to the calculus position, the obturator assembly 3 is taken out, the detachable superfine mirror assembly 4 is placed to the calculus position through the sheath assembly 2, and then the laser fiber and the fiberscope 5 are placed through the detachable superfine mirror assembly 4 and connected with the laser machine and the display; the sheath tube component 2 and the detachable superfine mirror component 4 are connected with negative pressure, so that the intra-renal pressure is effectively reduced through a negative pressure suction function, stones are sucked through the negative pressure at the sheath tube opening of the sheath tube 21 to carry out safe and efficient stone crushing operation, the stones are sucked out of the body while the stones are crushed, the operation can be effectively simplified, the pain of a patient is reduced, the recovery time is shortened, and the safety of minimally invasive stone removing operation is improved.
The foregoing is merely a preferred embodiment of the invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to limit the invention to other embodiments, and to various other combinations, modifications, and environments and may be modified within the scope of the inventive concept as expressed herein, by the teachings or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (9)

1. A detachable visual ultramicro-wound negative-pressure stone removing device comprises a puncture needle assembly (1) for puncture, and is characterized by further comprising a hole closing device assembly (3) detachably connected with the puncture needle assembly (1), a sheath tube assembly (2) detachably connected with the hole closing device assembly (3), a detachable superfine mirror assembly (4) detachably connected with the sheath tube assembly (2), and a fiberscope (5) detachably connected with the detachable superfine mirror assembly (4); the sheath tube assembly (2) is provided with a sheath tube (21) and a sheath tube joint (22) arranged at one end of the sheath tube (21), and the sheath tube joint (22) comprises a device connecting cavity (221) detachably connected with the obturator assembly (3) or the detachable superfine mirror assembly (4) and a negative pressure connecting cavity (222) detachably connected with a negative pressure source; the obturator assembly (3) is provided with an obturator (31) and an obturator connector (32) arranged at one end of the obturator (31), the puncture needle assembly (1) sequentially penetrates through the obturator connector (32) and the obturator (31) and is detachably connected with the obturator connector (32) to form a puncture kit for puncture expansion, puncture expansion process simplification and puncture rigidity improvement, and the fiberscope (5) extends into the puncture needle assembly (1) and is detachably connected with the puncture needle assembly (1) to form a visual puncture structure.
2. The detachable visual ultramicro-invasive negative-pressure stone removing device according to claim 1, wherein the detachable ultramicro-mirror assembly (4) comprises a multi-cavity tube (41) for guiding the laser fiber, the fiberscope (5), the stone removing basket, the guide wire and flushing water and a multi-cavity tube connector (46) arranged at one end of the multi-cavity tube (41), the multi-cavity tube connector (46) is detachably connected with a locking connector (42) for fixing the laser fiber, the fiberscope (5), the stone removing basket and the guide wire, and the multi-cavity tube connector (46) is also detachably connected with a multi-channel connector (43); multi-chamber pipe (41) outside cover is equipped with and is used for preventing that multi-chamber pipe (41) from folding over and operate protective sheath pipe (44) of location, multi-chamber union coupling head (46) outside sets up in handle (45), protective sheath pipe (44) are connected with handle (45).
3. A detachable visual ultra-micro invasive negative pressure stone removing device according to claim 1 or 2, wherein the multi-channel joint (43) is a three-way joint or a multi-channel joint.
4. A detachable visual ultra-micro invasive negative pressure stone removing device according to claim 1 or 2, wherein the multi-cavity tube (41) is configured with at least two cavities, and the multi-cavity tube (41) is configured with a circular or oval shape.
5. A detachable visual ultra-micro invasive negative pressure stone removing device according to claim 1, wherein the obturator joint (32) is provided with at least two connecting ports for connecting with the puncture needle assembly (1) and the negative pressure source respectively; the inner diameter of the obturator (31) is 1-2mm, the obturator (31) is made of medical metal or high polymer material, and the obturator (31) is provided with a tip for enhancing the X-ray and B-ultrasonic developing effects.
6. The detachable visual ultramicro-invasive negative-pressure stone removing device is characterized in that the puncture needle assembly (1) comprises a puncture needle (11), a puncture needle connector (12) arranged at one end of the puncture needle (11) and used for being detachably connected with the obturator assembly (3) in a threaded manner, and a puncture needle tip (13) arranged at the other end of the puncture needle (11) and used for puncturing, wherein the fiberscope (5) extends into the puncture needle (11) through the puncture needle connector (32) and is detachably connected with the obturator connector (32) to form a visual puncture structure.
7. The detachable visual ultra-micro trauma negative pressure stone removing device as claimed in claim 6, wherein the puncture needle tip (13) is of bevel or conical shape.
8. A detachable visual ultra-micro trauma negative pressure lithotomy device according to claim 1, characterized in that the inner diameter of the sheath tube (21) is 2-5mm, the sheath tube (21) is made of medical metal or polymer material and the sheath tube (21) is provided with a tip for enhancing the effect of X-ray and B-ultrasonic development.
9. A detachable visual ultra-micro wound negative pressure stone removing device according to claim 1 or 6, characterized in that the outer diameter of the fiberscope (5) is 0.5-1mm, and the fiberscope (5) is provided with a light source interface and a display interface.
CN201910967289.7A 2019-10-12 2019-10-12 Detachable visual ultra-minimally invasive negative pressure stone removing device Active CN110680472B (en)

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