CN203576562U - Novel cannula for transurethral laparoscopic surgery - Google Patents

Novel cannula for transurethral laparoscopic surgery Download PDF

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Publication number
CN203576562U
CN203576562U CN201320752994.3U CN201320752994U CN203576562U CN 203576562 U CN203576562 U CN 203576562U CN 201320752994 U CN201320752994 U CN 201320752994U CN 203576562 U CN203576562 U CN 203576562U
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China
Prior art keywords
cannula
sealing cap
cannula base
inner core
laparoscopic surgery
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Expired - Lifetime
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CN201320752994.3U
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Chinese (zh)
Inventor
张愚
朱志强
黄真
郑鑫
刘建威
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Individual
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Individual
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Abstract

The utility model discloses a novel cannula for transurethral laparoscopic surgery. The novel laparoscopic surgery cannula passing through a urethra comprises a cannula body, a cannula base, a sealing cap and a safe inner core of the cannula. The cannula body is shaped as a hollow cylinder, an inner cavity of the cylinder serves as a working passage, the head end of the working passage is a round smooth oblique opening, the tail end of the working passage is enlarged in a tapering manner, a lateral gas valve is arranged on the cannula body, and the tail end of the cannula body is connected with a head portion of the cannula base. A one-way fan-shaped valve pointing to the cannula body is arranged in the cannula base, a tail portion of the cannula base is provided with a sealing cap connection port connected with the sealing cap, one end of the sealing cap is provided with a large hole while the other end of the same is provided with a small hole, the large-hole end of the sealing cap is connected with the sealing cap connection port on a tail portion of cannula base, and the small-hole end of the cannula sealing cap is an apparatus passage and functions in sealing in and out of gas. The tip end of the safe inner core of the cannula is a blunt end, a body of the safe inner core is a cylinder, a tail portion of the safe inner core is an expansion handle, and the safe inner core is used for enclosing an inner cavity of an apparatus. A surgical passage can be established via a natural cavity (the urethra) of a human body, so that body surface injure is reduced, and a curing range of a laparoscope is enlarged.

Description

A kind of novel per urethra laparoscopic surgery sleeve pipe
Technical field
This utility model belongs to technical field of medical appliance structures, relates to Urology Surgery Wicresoft laparoscopic surgery field in hospital, is specifically related to a kind of novel per urethra laparoscopic surgery sleeve pipe.
Background technology
Developing rapidly of laparoscopic technique, can carry out by the laparoscopically method of Wicresoft most urological surgeries.Meanwhile, on the basis of existing puncture channel, further reducing surgical wound, is the direction that medical personnel explores.Utilize patient's natural tract (as oral cavity, anus, urethra etc.) itself to substitute traumatic puncture channel, for reducing, damage, reduce postoperative complication and there is positive meaning.Tradition laparoscope puncture casing because it is short, thick, most advanced and sophisticated sharp can not inserting by urethra, thereby issue and understand this novel per urethra laparoscopic surgery sleeve pipe in this background.
Summary of the invention
The technical problem that this utility model institute art solves is to provide a kind of novel per urethra laparoscopic surgery sleeve pipe, the method that this sleeve pipe can utilize human body natural's urethra to substitute traditional wound puncture is set up laparoscopic procedure passage, reduce surgical injury, reduce postoperative complication, improve the therapeutic domain of Wicresoft's laparoscopic surgery for bladder illness.
The technical scheme that this utility model provides is: a kind of novel per urethra laparoscopic surgery sleeve pipe, comprises sleeve body, cannula base, sealing cap and casing safety inner core; Described sleeve body profile is hollow cylinder, and service aisle is cylindrical cavity, and head end is round and smooth inclined-plane opening, and the tapered amplification of tail end which is provided with a lateral gas valve, and end is to be connected with cannula base head; In cannula base, be provided with the unilateral gate fan-shaped valve that points to sleeve body, afterbody is provided with the sealing cap connectivity port being connected with sealing cap, sealing cap one end has large mouthful, the other end has osculum, sealing cap big opening end is connected with the sealing cap connectivity port of cannula base afterbody, osculum end is instrument channel, plays confining gas turnover effect; Casing safety inner core tip is blunt nosed, and body is cylindrical, and afterbody is for expanding handle, for sealing apparatus inner chamber.
Further, described sleeve body end is connected with cannula base head threads.
Further, the round and smooth inclined-plane of described sleeve body head end is 45 oinclination angle.
Further, described cannula base is horizontal flask shape profile.
Except sealing cap is silica gel quality, all the other all structures are stainless steel structure.
The utlity model has following beneficial effect: in Laparoscopic Surgery of Urology operating process, this utility model is inserted from external per urethra mouth, and by tubular sleeve indwelling in urethra, far-end is to intravesical, in laparoscopic surgery, this sleeve pipe is for linking up the instrument channel outside intravesical.Patient can pass through this sleeve pipe, in vitro lens of laparoscope or other apparatuses is inserted in bladder cavity, completes the laparoscopic surgical procedure to bladder disease damage.This sleeve pipe can be set up operation path by human body natural's tract (urethra), the method that can reason human body natural urethra substitutes traditional wound puncture is set up laparoscopic procedure passage, expand the object of therapeutic laparoscopy scope, can be used for the laparoscopic surgical procedure of bladder disease damage, reduce surgical injury, reduced postoperative complication, improved the therapeutic domain of Wicresoft's laparoscopic surgery for bladder illness.
Accompanying drawing explanation
Fig. 1 is a kind of novel per urethra laparoscopic surgery sleeve structure schematic diagram of this utility model.
Fig. 2 is the safe core arrangement schematic diagram of a kind of novel per urethra laparoscopic surgery sleeve pipe of this utility model.
Wherein, 1-sleeve body, 2-cannula base, 3-sealing cap, the safe inner core of 4-, 5-cylindrical inner chamber, 6-gas valve, 7-screw socket, 8-screw thread, 9-one-way cock, 10-sealing cap connectivity port, 11-inclined-plane opening, 12-big opening end, 13-osculum end, 14-is blunt nosed, 15-handle.
The specific embodiment
Below in conjunction with accompanying drawing, provide the specific embodiment of the present utility model.
Refer to Fig. 1 and Fig. 2, a kind of novel per urethra laparoscopic surgery sleeve pipe of this utility model comprises sleeve body 1, cannula base 2, sealing cap 3, casing safety inner core 4, and except sealing cap is silica gel quality, all the other all structures are stainless steel structure.Sleeve body 1 profile is hollow cylinder, and service aisle is cylindrical cavity 5, and head end is round and smooth inclined-plane opening 11, and without sharp edges, the tapered amplification of tail end, is provided with a lateral gas valve 6 on it, and end is the screw socket 7 being connected with cannula base 2.Cannula base 2 is horizontal flask shape profile, borrows screw thread 8 to be connected with sleeve body 1 end screw socket 7, and cannula base 2 includes the unilateral gate fan-shaped valve 9 that points to sleeve body 1, and cannula base 2 afterbodys are sealing cap connectivity port 10.Sealing cap 3 one end have large mouthful, and the other end has osculum, and the big opening end 12 of sealing cap 3 is connected with the sealing cap connectivity port 10 of cannula base 2 afterbodys, and osculum end 13 is instrument channel, plays confining gas turnover effect.Casing safety inner core 4 tips are blunt nosed 14, and body is cylindrical, and afterbody is for expanding handle 15, for sealing apparatus inner chamber.
In the present embodiment, the external diameter 6.5mm of sleeve body 1, active length 20cm, cylindrical cavity 5 internal diameter 5.5mm, the round and smooth inclined-plane 11 of head end is 45 oinclination angle; Cannula base 2: service aisle and sleeve body (1) inner chamber is coaxial, and internal diameter is not less than 5.5mm, the unilateral gate fan-shaped valve 9 that points to sleeve body 1 is 45 oinclination angle, tail seal cap connectivity port 10 minimum outer diameter are not less than 7.0mm; Sealing cap 3 is not more than 7.0mm with big opening end 12 maximum inner diameters that cannula base 2 tail seal cap connectivity ports 10 are connected, and osculum end 13 internal diameters of instrument channel are not more than 4mm; Casing safety inner core 4 external diameter 5mm.
Using method of the present utility model is as follows:
Before operation starts, assistant's left hand is held sleeve body 1, and the right hand is held cannula base 2, makes the screw socket 7 of sleeve body 1 end relative with cannula base 2 screw threads 8, and rotation, makes sleeve body 1 screw socket 7 closely be connected with cannula base 2 screw threads 8 relatively; Getting sealing cap 3 big opening ends 12 is buckled on the sealing cap connectivity port 10 of cannula base 2 afterbodys; Casing safety inner core 4 most advanced and sophisticated blunt nosed 14 forward, through sealing cap 3 osculum ends 13, cannula base 2 service aisles and sleeve body 1 cylindrical cavity 5, insert, casing safety inner core 4 blunt nosed 14 and the round and smooth inclined-plane of sleeve body 1 opening 11 are agreed with, close sleeve body 1 lateral gas valve 6.Check that each parts connect firm.
During operation, according to the operational approach of metal urethral catheter urethral catheterization, patient's right hand is held the casing safety inner core 4 connecting and is expanded handle 15, by blunt nosed casing safety inner core 4 14 with sleeve body 1 patients with implantation urethra; When sensation front end non-resistance, the sleeve body 1 round and smooth inclined-plane of head end opening 1) entered after bladder cavity, extract casing safety inner core 4; Open sleeve body 1 lateral gas valve 6 and connect pneumoperitoneum apparatus inflation, through sealing cap 3 osculum ends 13, insert 5mm laparoscopic visualization camera lens and observe or insert 5mm laparoscopic surgical instruments and carry out operation technique in bladder cavity.
After end of operation, again by blunt nosed casing safety inner core 4 14 forward, through sealing cap 3 osculum ends 13, cannula base 2 service aisles and sleeve body 1 cylindrical cavity 5, insert, casing safety inner core 4 blunt nosed 14 and the round and smooth inclined-plane of sleeve body 1 opening 11 are agreed with, close sleeve body 1 lateral gas valve 6.Along urethra natural torsion, a whole set of per urethra laparoscopic surgery sleeve pipe is extracted.
Sleeve body 1 of the present utility model, cannula base 2 and casing safety inner core 4 form an overall structure, durable in use, convenient operation; Stainless steel smooth surface, few to tissue injury, durable, be difficult for getting rusty, be easy to sterilization, convenient operation, good looking appearance.Sealing cap 3 is silica gel material, belongs to conventional medical material, can sterilize, and is easy to make, and it is convenient to change.
Sleeve body 1 head end is round and smooth inclined-plane opening 11, tightly agrees with casing safety inner core 4 blunt nosed 14, and sleeve body 1 profile is hollow cylinder, without sharp edges, is easy to whole apparatus per urethra to advance and pull-out, is difficult for damaged tissue; Cannula base 2 service aisles and sleeve body 1 inner chamber are coaxial, and sleeve body 1 cylindrical cavity 5 internal diameter 5.5mm, can carry out the operation of 5mm laparoscopic instrument and camera lens easily; Sleeve body 1 lateral gas valve 6 can carry out input and the eliminating of gas, keeps working place and the visual field; Cannula base 2 includes unilateral gate fan-shaped valve 9, together with sealing cap 3, can when instrumentation, prevent gas effusion, maintains pneumoperitoneum and presses.Sleeve body 1 external diameter 6.5mm, active length 20cm, meets bore and the length of sex adult urethra, can under the prerequisite that does not cause injury of urethra, meet the use of most humans.

Claims (4)

1. a novel per urethra laparoscopic surgery sleeve pipe, is characterized in that: comprise sleeve body (1), cannula base (2), sealing cap (3) and casing safety inner core (4); Described sleeve body (1) profile is hollow cylinder, and service aisle is cylindrical cavity (5), and head end is round and smooth inclined-plane opening (11), and the tapered amplification of tail end which is provided with a lateral gas valve (6), and end is to be connected with cannula base (2) head; In cannula base (2), be provided with the unilateral gate fan-shaped valve (9) that points to sleeve body, afterbody is provided with the sealing cap connectivity port (10) being connected with sealing cap (3), sealing cap (3) one end has large mouthful, the other end has osculum, sealing cap (3) big opening end (12) is connected with the sealing cap connectivity port (10) of cannula base (2) afterbody, osculum end (13) is instrument channel, plays confining gas turnover effect; Casing safety inner core (4) tip is blunt nosed (14), and body is cylindrical, and afterbody is for expanding handle (15), for sealing apparatus inner chamber.
2. novel per urethra laparoscopic surgery sleeve pipe according to claim 1, is characterized in that: described sleeve body (1) end is connected with cannula base (2) head threads.
3. novel per urethra laparoscopic surgery sleeve pipe according to claim 1, is characterized in that: the round and smooth inclined-plane of described sleeve body (1) head end (11) is 45 oinclination angle.
4. novel per urethra laparoscopic surgery sleeve pipe according to claim 1, is characterized in that: described cannula base (2) is horizontal flask shape profile.
CN201320752994.3U 2013-11-26 2013-11-26 Novel cannula for transurethral laparoscopic surgery Expired - Lifetime CN203576562U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320752994.3U CN203576562U (en) 2013-11-26 2013-11-26 Novel cannula for transurethral laparoscopic surgery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320752994.3U CN203576562U (en) 2013-11-26 2013-11-26 Novel cannula for transurethral laparoscopic surgery

Publications (1)

Publication Number Publication Date
CN203576562U true CN203576562U (en) 2014-05-07

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CN201320752994.3U Expired - Lifetime CN203576562U (en) 2013-11-26 2013-11-26 Novel cannula for transurethral laparoscopic surgery

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105078552A (en) * 2015-09-11 2015-11-25 凌安东 Endoscopic picking bag hard catheter opening sealing, traction and air controlling combined apparatus
CN105852938A (en) * 2016-04-19 2016-08-17 常州优复瑞医疗器械有限公司 Puncture sheath assembly
CN106618722A (en) * 2016-12-26 2017-05-10 北京大学人民医院 Transurethral laparoscope cannula use for disposable engagement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105078552A (en) * 2015-09-11 2015-11-25 凌安东 Endoscopic picking bag hard catheter opening sealing, traction and air controlling combined apparatus
CN105078552B (en) * 2015-09-11 2017-06-16 凌安东 Drawn with the closing for taking thing bag hard conduit opening under hysteroscope and combined the unit with control gas
CN105852938A (en) * 2016-04-19 2016-08-17 常州优复瑞医疗器械有限公司 Puncture sheath assembly
CN106618722A (en) * 2016-12-26 2017-05-10 北京大学人民医院 Transurethral laparoscope cannula use for disposable engagement
CN106618722B (en) * 2016-12-26 2023-11-14 北京大学人民医院 Disposable anastomotic transurethral laparoscopic cannula

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