CN114869402A - Visible dilating sheath for percutaneous nephroscope - Google Patents

Visible dilating sheath for percutaneous nephroscope Download PDF

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Publication number
CN114869402A
CN114869402A CN202210216173.1A CN202210216173A CN114869402A CN 114869402 A CN114869402 A CN 114869402A CN 202210216173 A CN202210216173 A CN 202210216173A CN 114869402 A CN114869402 A CN 114869402A
Authority
CN
China
Prior art keywords
channel
sheath
expansion
optical fiber
joint
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210216173.1A
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Chinese (zh)
Inventor
程跃
刘冠琳
史军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Blue Line Platinum Medical Technology Shanghai Co ltd
Original Assignee
Blue Line Platinum Medical Technology Shanghai Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Blue Line Platinum Medical Technology Shanghai Co ltd filed Critical Blue Line Platinum Medical Technology Shanghai Co ltd
Priority to CN202210216173.1A priority Critical patent/CN114869402A/en
Publication of CN114869402A publication Critical patent/CN114869402A/en
Pending legal-status Critical Current

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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
    • A61B17/22—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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • 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
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M29/00—Dilators with or without means for introducing media, e.g. remedies
    • 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
    • A61B2017/22038—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 a guide wire
    • 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
    • A61B17/22—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
    • A61B2017/22082—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 after introduction of a substance
    • 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
    • A61B2017/3405—Needle locating or guiding means using mechanical guide means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/10—Trunk
    • A61M2210/1078—Urinary tract
    • A61M2210/1082—Kidney

Abstract

The invention provides a percutaneous nephroscope visual expansion sheath, wherein an expansion tube is cylindrical, the front end of the expansion tube is conical, the top end of the conical is a circular plane, an optical fiber channel and a guide wire channel are arranged in the expansion tube, the optical fiber channel penetrates out from the circular plane of the top end of the conical, the guide wire channel penetrates out from the outer surface of the conical, when the percutaneous nephroscope visual expansion sheath is operated, a guide wire extends out of the top end of the guide wire channel, and an optical fiber is flush with the top end of the optical fiber channel, so that an operator can directly observe the advancing positions of the guide wire and the expansion tube through the optical fiber.

Description

Visible dilating sheath of percutaneous nephroscope
Technical Field
The invention relates to medical equipment, in particular to a percutaneous nephroscope.
Background
The surgical treatment method for kidney stone comprises the following steps: incision lithotomy, extracorporeal lithotripsy, percutaneous nephrolithotomy. The traditional method of 'knife-cutting and stone-taking' needs to make a large incision about 20cm on the waist, cut the muscle of the waist, separate the kidney, cut a small opening on the renal pelvis or renal parenchyma, and take out the stone. The method has the advantages of large injury, more hemorrhage, pain, and slow recovery. Usually, the patient needs to be hospitalized for about 7 days after the operation. Because the operation incision is large, not only the skin is not beautiful, but also the physical strength of the patient after the operation is greatly influenced. Compared with open surgery, percutaneous nephrolithotomy has the advantages of small injury, light pain, thorough calculus removal, quick recovery and the like. The incision of the waist is usually less than 1cm, because no muscle is cut, so that not only the beauty is not influenced, but also the post-operation has little influence on the labor force. The patient can be discharged after the operation for 2-3 days. Compared with laparoscopic calculus removal, percutaneous nephrolithotomy has little influence on the kidney and surrounding structures, and does not influence various renal operations in the future. Compared with the external lithotripsy, the method has short treatment period, instant effect and less influence on the kidney function.
However, the conventional percutaneous nephroscope has a drawback that, for example, when the dilatation sheath is expanded after the puncture is finished, the conventional dilatation sheath cannot observe the advancing position of the dilatation sheath, and the puncture is too deep, which causes medical accidents such as renal hemorrhage and the like.
Disclosure of Invention
The invention aims to solve the problems and overcome the problems existing in percutaneous nephroscope puncture expansion in the prior art, and provides a percutaneous nephroscope visual expansion sheath to meet the requirements.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the visible expansion sheath for the percutaneous nephroscope comprises a tearing sheath and an expansion tube arranged in the tearing sheath, and is characterized in that the expansion tube is cylindrical, the front end of the expansion tube is conical, the top end of the conical expansion tube is a circular plane, an optical fiber channel and a guide wire channel are arranged in the expansion tube, the optical fiber channel and the guide wire channel are arranged in parallel with the expansion tube, the optical fiber channel penetrates out of the circular plane, the guide wire channel penetrates out of the outer surface of the conical expansion tube, and the optical fiber channel and the circular plane are concentric.
The visible dilating sheath for the percutaneous nephroscope is characterized in that the cross section of the optical fiber channel is circular; the cross section of the guide wire channel is circular.
The visible dilating sheath for the percutaneous nephroscope is characterized by further comprising a tearing sheath joint and a dilating tube joint, wherein the tearing sheath joint is connected with the tearing sheath, and the tearing sheath joint and the tearing sheath are arranged on the outer wall of the dilating tube; the expansion pipe joint is connected with the expansion pipe, and the expansion pipe joint is connected with the tearing sheath joint.
The visible expansion sheath for the percutaneous nephroscope is characterized in that the expansion pipe joint comprises three cavities, namely a guide wire cavity, an optical fiber cavity and a liquid injection cavity, the optical fiber cavity and the liquid injection cavity are communicated with an optical fiber channel, and the guide wire cavity is communicated with the guide wire channel.
The visible dilating sheath for the percutaneous nephroscope is characterized by further comprising a connector for connecting the dilating tube joint and the tearing sheath joint, wherein two ends of the connector are detachably connected with the dilating tube joint and the tearing sheath joint respectively.
The visible dilating sheath for the percutaneous nephroscope is characterized in that a suction channel is arranged on the tearing sheath joint.
The visible dilating sheath for the percutaneous nephroscope is characterized in that the tearing sheath joint is provided with two suction channels, one of the suction channels is a through hole, the other suction channel is a blind channel, and the two suction channels are symmetrically arranged.
The visible dilating sheath for the percutaneous nephroscope is characterized in that steps are arranged on the inner walls of the guide wire cavity channel and the optical fiber cavity channel, external threads are arranged on the outer walls of the guide wire cavity channel and the optical fiber cavity channel, the visible dilating sheath further comprises a locking connector and a locking plug, the locking plug is arranged at the step, internal threads corresponding to the external threads on the outer walls of the guide wire cavity channel and the optical fiber cavity channel are arranged on the inner wall of the locking connector, a circle of squeezing ring is further arranged on the inner side of the inner wall of the locking connector, and the top end of the squeezing ring is in contact with the locking plug.
The invention has the beneficial effects that: the visual expansion sheath can be used for effectively positioning puncture expansion by using a visual image system when the puncture is expanded, and medical accidents such as renal hemorrhage caused by too deep puncture in conventional operations are avoided.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a side view of the dilation tube;
FIG. 3 is an enlarged schematic view at A in FIG. 1;
fig. 4 is an enlarged schematic view of fig. 1 at B.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to fig. 1-3, a visible dilating sheath for a percutaneous nephroscope comprises a tearing sheath 100 and a dilating tube 200 arranged in the tearing sheath 100, wherein the dilating tube 200 is cylindrical, the front end of the dilating tube is conical, the top end of the conical is a circular plane 230, and a fiber channel 210 and a guide wire channel 220 are arranged in the dilating tube 200. Wherein the fiber channel 210 can pass through the fiber and the water injection, and the guide wire channel 220 can pass through the guide wire. The fiber channel 210 and the guide wire channel 220 are arranged parallel to the dilation tube 200, and the fiber channel 210 exits from the circular plane 230, and the guide wire channel 220 exits from the outer surface of the cone, the fiber channel 210 being concentric with the circular plane 230. In the present invention, the cross-sectional shapes of the fiber channel 210 and the guidewire channel 220 are circular; the cross-sectional shape of the guidewire channel 220 is circular.
Due to the diameter limitation of the expanding tube 200, if the optical fiber channel 210 and the guide wire channel 220 are both placed on the circular plane 230, the diameter of the optical fiber channel 210 becomes smaller, so that the optical fiber can only pass through in the form of bare optical fiber, and the damage to the optical fiber is larger, while by the design of the present invention, the whole circular plane 230 has only one optical fiber channel 210 with a diameter close to the diameter of the circular plane 230, so that the optical fiber can be sheathed with the optical fiber protective sleeve and then pass through the optical fiber channel 210.
The pipe further comprises a tearing sheath joint 300 and an expansion pipe joint 400, wherein the tearing sheath joint 300 is connected with the tearing sheath 100, the tearing sheath joint 300 is connected with the tearing sheath 100 through a hot melting or glue bonding process, and the tearing sheath joint 300 and the tearing sheath 100 are sleeved on the outer wall of the expansion pipe 200; the expansion joint 400 is connected to the expansion pipe 200, and the expansion joint 400 is connected to the tearing sheath joint 300. The anti-interference type pipe joint further comprises a connector 500 used for connecting the expansion pipe joint 400 and the tearing sheath joint 300, two ends of the connector 500 are detachably connected with the expansion pipe joint 400 and the tearing sheath joint 300 respectively, and the connection mode can be a buckling mode and can also be an interference fit mode.
The expansion pipe joint 400 comprises three channels, namely a guide wire channel 410, an optical fiber channel 420 and a liquid injection channel 430, wherein the optical fiber channel 420 and the liquid injection channel 430 are communicated with the optical fiber channel 210, and the guide wire channel 410 is communicated with the guide wire channel 220.
The tearing sheath connector 300 is provided with a suction channel 310. And the tearing sheath joint 300 is provided with two suction channels 310, wherein one suction channel 310 is a through hole, the other suction channel 320 is a blind channel, and the two suction channels 310 are symmetrically arranged.
Referring to fig. 4, the inner walls of the guide wire lumen 410 and the optical fiber lumen 420 are provided with steps 610, the outer walls are provided with external threads 620, the optical fiber lumen further comprises a locking joint 630 and a locking plug 640, the locking plug 640 is arranged at the steps 610, the inner wall of the locking joint 630 is provided with internal threads 650 corresponding to the external threads 620 on the outer walls of the guide wire lumen 410 and the optical fiber lumen 420, the inner side of the inner wall of the locking joint 630 is further provided with a ring of pressing ring 660, the top end of the pressing ring 660 contacts with the locking plug 640, the pressing ring 660 presses the locking plug 640 by installing the locking joint 630 to the guide wire lumen 410 and the optical fiber lumen 420, and the pressing ring 660 presses the locking plug 640 by twisting the threads, so that the locking plug 640 deforms, and thereby locking the guide wire and the optical fiber passing through the locking plug 640.
In operation, the optical fiber and the guide wire are advanced into the optical fiber channel 210 and the guide wire channel 220 through the optical fiber lumen 420 and the guide wire lumen 410, respectively, and finally the guide wire is extended out of the tip of the guide wire channel 220 with the optical fiber flush with the tip of the optical fiber channel 210. Then the dilating tube 200 dilates the puncture hole, and due to the existence of the optical fiber, an operator can clearly see the advancing position of the dilating tube 200, if the field of vision at the front end of the optical fiber is not clear, water can be injected through the injection cavity channel 430, and when the dilating tube 200 reaches the renal pelvis, the advancing is stopped, so that the condition of over-puncturing or puncturing the kidney cannot occur. The tearing sheath is then left in the puncture while the expansion joint 400 is detached from the tearing sheath joint 300, and then the expansion tube 200 is pulled out. Subsequent surgical instruments are then attached to the tear sheath 300.
The invention has the beneficial effects that: the visual expansion sheath can be used for effectively positioning puncture expansion by using a visual image system when the puncture is expanded, and medical accidents such as renal hemorrhage caused by too deep puncture in conventional operations are avoided.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (14)

1. The utility model provides an expansion tube, the expansion tube is used for percutaneous nephroscope expansion sheath, its characterized in that, the expansion tube is cylindric, and the front end is the circular cone, and the top of circular cone is the circular plane, be provided with fiber channel and seal wire passageway in the expansion tube, fiber channel wears out from the circular plane on circular cone top, the seal wire passageway is worn out from the surface of circular cone, and when the operation, the seal wire stretches out the top of seal wire passageway, optic fibre with fiber channel's top flushes to be convenient for the operator through optic fibre directly observe the seal wire with the position of marcing of expansion tube.
2. The dilation tube of claim 1 wherein the cross-sectional shape of the fiber channel is circular.
3. The dilation tube of claim 1 wherein the guidewire channel is circular in cross-sectional shape.
4. The dilation tube of any one of claims 1-2 wherein the optical fiber is sheathed in a protective sheath.
5. The utility model provides a visual expansion sheath of percutaneous nephroscope, its characterized in that, is including tearing the sheath and setting up the expansion tube in tearing the sheath, the expansion tube is cylindric, and the front end is the circular cone, and the top of circular cone is the circular plane, be provided with fibre channel and wire guide channel in the expansion tube, fibre channel wears out from the circular plane on circular cone top, wire guide channel wears out from the surface of circular cone, and when the operation, the seal wire stretches out wire guide channel's top, optic fibre with fibre channel's top flushes to the operator through optic fibre directly observe the seal wire with the position of marcing of expansion tube.
6. The percutaneous nephroscope visual dilating sheath of claim 5, wherein the cross-sectional shape of the optical fiber channel is circular.
7. The percutaneous nephroscope visual dilation sheath of claim 5, wherein the cross-sectional shape of the guidewire channel is circular.
8. The percutaneous nephroscope visual dilating sheath of claim 5, wherein the optical fiber is sheathed with a protective sheath.
9. The percutaneous nephroscope visual expanding sheath according to any one of claims 5 to 8, further comprising a tearing sheath joint and an expanding tube joint, wherein the tearing sheath joint is connected with the tearing sheath, and the tearing sheath joint and the tearing sheath are arranged on the outer wall of the expanding tube; the expansion pipe joint is connected with the expansion pipe, and the expansion pipe joint is connected with the tearing sheath joint.
10. The percutaneous nephroscope visual expansion sheath according to claim 9, wherein the expansion pipe joint comprises three channels, namely a guide wire channel, an optical fiber channel and an injection channel, the optical fiber channel and the injection channel are communicated with the optical fiber channel, and the guide wire channel is communicated with the guide wire channel.
11. The percutaneous nephroscope visual expansion sheath of claim 9, further comprising a connector for connecting the expansion tube joint and the tearing sheath joint, wherein two ends of the connector are detachably connected with the expansion tube joint and the tearing sheath joint respectively.
12. The percutaneous nephroscope visual dilating sheath of claim 9, wherein the tearing sheath connector is provided with a suction channel.
13. The percutaneous nephroscope visual expansion sheath of claim 9, wherein the tearing sheath joint is provided with two suction channels, one of the suction channels is a through hole, the other suction channel is a blind channel, and the two suction channels are symmetrically arranged.
14. The percutaneous nephroscope visual expansion sheath as claimed in claim 10, wherein the guide wire channel and the optical fiber channel are provided with steps on the inner wall thereof, and outer walls thereof are provided with external threads, the percutaneous nephroscope visual expansion sheath further comprises a locking connector and a locking plug, the locking plug is arranged at the steps, the inner wall of the locking connector is provided with internal threads corresponding to the external threads on the outer walls of the guide wire channel and the optical fiber channel, and the inner side of the inner wall of the locking connector is further provided with a ring of squeezing ring, and the top end of the squeezing ring is in contact with the locking plug.
CN202210216173.1A 2017-07-11 2017-07-11 Visible dilating sheath for percutaneous nephroscope Pending CN114869402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210216173.1A CN114869402A (en) 2017-07-11 2017-07-11 Visible dilating sheath for percutaneous nephroscope

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710562807.8A CN107374698B (en) 2017-07-11 2017-07-11 Visible dilating sheath for percutaneous nephroscope
CN202210216173.1A CN114869402A (en) 2017-07-11 2017-07-11 Visible dilating sheath for percutaneous nephroscope

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Publication Number Publication Date
CN114869402A true CN114869402A (en) 2022-08-09

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CN201710562807.8A Active CN107374698B (en) 2017-07-11 2017-07-11 Visible dilating sheath for percutaneous nephroscope

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108175483A (en) * 2018-02-22 2018-06-19 上海英诺伟医疗器械有限公司 Visual guidance sheath
CN109938811B (en) * 2019-04-02 2024-04-16 海盐康源医疗器械有限公司 Minimally invasive visual expansion suction sheath
CN111012414A (en) * 2019-12-23 2020-04-17 合肥市第三人民医院 Fascia dilator for percutaneous nephroscope and application thereof

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US7654989B2 (en) * 2003-04-08 2010-02-02 C. R. Bard, Inc. Ureteral access sheath
US20090318798A1 (en) * 2008-06-23 2009-12-24 Errol Singh Flexible visually directed medical intubation instrument and method
CN202061223U (en) * 2011-03-16 2011-12-07 黄健 Visible percutaneous kidney channel expander and closed sleeve
CN202235489U (en) * 2011-09-15 2012-05-30 贾全安 Light-guide urethral sound
CN103239203A (en) * 2013-04-26 2013-08-14 广州宝胆医疗器械科技有限公司 Percutaneous transhepatic puncture choledochoscope
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CN105854160A (en) * 2016-05-13 2016-08-17 余月 Visual urethra expansion bougic with epitheca capable of being torn open
CN205867274U (en) * 2016-06-20 2017-01-11 首都医科大学附属北京朝阳医院 Visual ureter passageway sheath

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CN107374698A (en) 2017-11-24
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