CN109288562A - A kind of endoscope-assistant surgery puncture outfit - Google Patents
A kind of endoscope-assistant surgery puncture outfit Download PDFInfo
- Publication number
- CN109288562A CN109288562A CN201811107768.3A CN201811107768A CN109288562A CN 109288562 A CN109288562 A CN 109288562A CN 201811107768 A CN201811107768 A CN 201811107768A CN 109288562 A CN109288562 A CN 109288562A
- Authority
- CN
- China
- Prior art keywords
- puncturing lever
- puncture
- sealing element
- self
- endoscope
- 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.)
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Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
-
- 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
- A61B2017/3419—Sealing means between cannula and body
-
- 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
- A61B17/3421—Cannulas
- A61B2017/3445—Cannulas used as instrument channel for multiple instruments
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a kind of endoscope-assistant surgery puncture outfits, including thorn casing, sealing element, puncture bar assembly and air intake assembly, the sealing element is made of the silica gel comprising self-lubricating agent, the puncture bar assembly includes puncturing lever pedestal and puncturing lever, the puncturing lever is the isometrical body of rod, and the tail end of the puncturing lever is connected with the puncturing lever pedestal, it is in polygonal pyramid shape that the head end of the puncturing lever, which is shunk, and the head end of the puncturing lever is plugged in the puncture cannula after passing through the sealing element；The puncturing lever is made of the medical macromolecular materials comprising sour amide series lubricant agent, and the acid amide series lubricant agent uses oleamide, and the content of the oleamide is the 1% of the medical macromolecular materials gross mass.Sealing element and puncture bar assembly are combined the improvement of formula, have self-lubricating effect by endoscope-assistant surgery puncture outfit of the invention, can make puncturing lever and the smooth disengaging puncture cannula of surgical instrument when guaranteeing the sealing performance of sealing element.
Description
Technical field
The present invention relates to a kind of endoscope-assistant surgery puncture outfits, are a kind of laparoscope instruments, are suitable for laparoscope
It checks and establishes service aisle use in surgical procedure.
Background technique
With the development of medicine and the raising of people's health consciousness, laparoscopic surgery is small with its wound, restores fast, postoperative pain
The advantages such as pain is light, the hospital stays is short play an increasingly important role in Minimally Invasive Surgery, thus with laparoscope be advocate it is micro-
The clinical application of invasive procedures is also more and more extensive.
The principle of laparoscopic surgery is that carbon dioxide gas is used to make artificial pneumoperitoneum as observation and operating space；Use puncture outfit
The duck eye that several 0.5~1.0cm are punctured on stomach wall establishes abdominal cavity and extraneous channel；It is had and is taken the photograph by puncture outfit insertion
Video recording system, light source and other surgical instruments will be transmitted on display the case where abdominal cavity by CCD camera, doctor
It observes and is operated in real time by the image on screen.
Common puncture outfit by puncture cannula, seal assembly, puncture bar assembly and air intake assembly and form, air intake assembly with wear
It pierces casing to be connected, seal assembly is installed on puncture cannula, be plugged on puncture cannula in use, puncturing bar assembly and passing through seal assembly
It is interior.For the leakage for avoiding carbon dioxide gas, seal assembly reaches sealing effect using multi-stage sealed silica gel part composition.But
It is surgical instrument when passing in and out puncture channel, the resistance from seal assembly can be frequently suffered from, doctor is caused to need with bigger
Power operates, and over time doctor's hand can be uncomfortable.Correspondingly, seal assembly can be led when for a long time by bigger pulling force
Mutagens shape cannot be restored, in time so as to cause seal failure.
Patent CN204049782 discloses a kind of seal assembly of puncture outfit, and the seal assembly is by sealing lower cover, sealing
Circle, sealing upper cover, sealing lower cover, elastic sealing element, supporting element and sealing upper press cover composition, wherein elastic sealing element is by 5
Identical notched cone composition, every angle of circumference is 225 °, the overlapping angle of every two pieces is 153 °.In the puncture outfit
Multi-stage sealed component because the piece number is excessive, overlapping area is excessive, to puncture needle and other surgical instruments in conversion process repeatedly
Resistance is brought, so that doctor's operation has some setbacks.
In order to solve resistance problem, there is seal assembly to change structure, also there is additive on seal assembly or puncture cannula
Reduce resistance, but these methods are all different degrees of that there is respective deficiencies.
Patent CN207152631 discloses a kind of small resistance sealing ring, and the sealing ring is by the sealing that more than two valves constitutes
Enclose and be divided into more than two support chips composition on each valve of sealing ring.The magnetic to attract each other is arranged on each valve of the sealing ring
Item or magnetic powder, and support chip is made of plastics or metal one kind hard material.In clinical application, puncturing lever is usually by metal material
Composition can have some setbacks when passing through the sealing ring with magnetic stripe or magnetic powder, and the support chip being made of hard material also can be to puncturing lever
Puncture bring resistance.
Patent CN105943131 discloses a kind of puncture outfit of self-lubricating, and the puncture outfit is by puncture cannula, core bar, casing
Seat, conversion cap, core rod seat, lubrication assembly composition.The lubrication assembly is by micropore bag and the lubricant grease group in micropore bag
Pass through service aisle at, surgical instrument or core bar, micropore bag, which is squeezed, can squeeze out lubricant grease, lubricant grease and surgical instrument or
Core bar contact reaches lubricant effect.In clinical application, puncturing core bar front end is mostly sharpened configuration, micro- when it passes through micropore bag
Hole bag is easy to be punctured rather than squeeze, and greasing substance can largely discharge, and inflow human body causes damages.
Patent CN202665587 discloses a kind of self-lubricating puncture outfit, which is made of puncturing lever and sheath, in sheath
There are the medical elastic porous material and medical lubricant that can be absorbed, store and discharge medical lubricant.Puncturing lever and lubrication assembly
When contact, the sharpened configuration of puncturing lever leading portion can destroy medical elastic porous material, especially more in puncturing lever or surgical instrument
It is destroyed after secondary puncture more seriously, the porous material after destruction is easy to produce clast, and it is harmful that clast, which enters human body,.In addition,
It selects Medical silicone oil to will lead to seal assembly made of silica gel material as lubricant to mix with silicone oil, destroys the sealing of puncture outfit
Performance.
As can be seen that there is no very good solution resistance problems for the above-mentioned published patent, thus need to continue to improve.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies of existing technologies, provide a kind of endoscope-assistant surgery puncture outfit, by sealing element and
The improvement that bar assembly is combined formula is punctured, self-lubricating effect is had, can be made when guaranteeing the sealing performance of sealing element
Puncturing lever and the smooth disengaging puncture cannula of surgical instrument.
Realizing the technical solution of above-mentioned purpose is: a kind of endoscope-assistant surgery puncture outfit, including puncture cannula, sealing element, wears
Thorn stick component and air intake assembly, the sealing element are arranged on the puncture cannula, and the puncture bar assembly passes through the sealing
It is plugged on after part in the puncture cannula, the air intake assembly is connected with the puncture cannula, and the sealing element by comprising moistening certainly
The silica gel of lubrication prescription is made, and the silica gel comprising self-lubricating agent includes following components according to the mass fraction:
The puncture bar assembly includes puncturing lever pedestal and puncturing lever, and the puncturing lever is the isometrical body of rod, and the puncture
The tail end of bar is connected with the puncturing lever pedestal, and it is in polygonal pyramid shape, the head end of the puncturing lever that the head end of the puncturing lever, which is shunk,
It is plugged on after the sealing element in the puncture cannula, and the puncturing lever pedestal is connected on the puncture cannula；
The puncturing lever is made of the medical macromolecular materials comprising sour amide series lubricant agent, the acid amides lubrication
Agent uses oleamide, and the content of the oleamide is the 1% of the medical macromolecular materials gross mass.
A kind of above-mentioned endoscope-assistant surgery puncture outfit, wherein the sealing element is made up of mould pressing process, specifically include with
Lower step: each component of the silica gel comprising self-lubricating agent being put into open mill and is kneaded uniformly adjustment roll spacing to 1mm,
It is logical 8 times thin, it is uniformly dispersed, vulcanizing agent is then added, be molded sulfidization molding at a temperature of 150 DEG C, vulcanization time 25min,
Obtain the sealing element with self-lubricating property.
A kind of above-mentioned endoscope-assistant surgery puncture outfit, wherein the puncturing lever is made of Shooting Technique, specifically include with
Lower step: the oleamide being added in polycarbonate dry blend, mixed at high speed, then double-screw extruding pelletizing is molded
It forms to get the puncturing lever with self-lubricating property is arrived.
Endoscope-assistant surgery puncture outfit of the invention, the fatty acid acyl in the sealing element made of the silica gel comprising self-lubricating agent
Sour amides profit in amine lubricant and the puncturing lever made of the medical macromolecular materials comprising sour amide series lubricant agent
Lubrication prescription can form molecule lubricant layer, while guaranteeing lubricant effect from the internal migration of puncturing lever and sealing element to surface
The total amount for controlling greasing substance, ensures the safety and effectiveness of puncture process.Using the puncturing lever of self-lubrication treatment, it wears in disengaging
The channel inside puncture cannula can be also lubricated when piercing casing other than self-lubricating, guarantees that the surgical instrument next used is passing in and out
Smoothness when channel.In addition, the sealing element for being added to greasing substance can reduce the resistance of puncturing lever and surgical instrument without
Change its sealing performance.Sealing element and puncture bar assembly are combined to the improvement of formula in this way, have self-lubricating effect, Ke Yi
In the case of the sealing performance for guaranteeing sealing element, make puncturing lever and the smooth disengaging puncture cannula of surgical instrument.
Detailed description of the invention
Fig. 1 is the structure chart of endoscope-assistant surgery puncture outfit of the invention；
Fig. 2 is the structure chart of the puncture bar assembly of endoscope-assistant surgery puncture outfit of the invention.
Specific embodiment
It is right with reference to the accompanying drawing in order to make those skilled in the art be better understood when technical solution of the present invention
Its specific embodiment is described in detail:
Please refer to Fig. 1 and Fig. 2, highly preferred embodiment of the present invention, a kind of endoscope-assistant surgery puncture outfit, including puncture cannula 3,
Sealing element 2 punctures bar assembly 1 and air intake assembly 4, and sealing element 2 is arranged on puncture cannula 3, and puncturing bar assembly 1 includes puncturing lever
Pedestal 11 and puncturing lever 12, puncturing lever 12 is the isometrical body of rod, and the tail end of puncturing lever 12 is connected with puncturing lever pedestal 11, puncturing lever
It is in polygonal pyramid shape that 12 head end, which is shunk, and the head end of puncturing lever 12 is plugged in puncture cannula 3 after passing through sealing element 2, and puncturing lever
Pedestal 11 is connected on puncture cannula 3.Air intake assembly 4 is connected with puncture cannula 3.
Puncturing lever 12 is made of the medical macromolecular materials comprising sour amide series lubricant agent, and sour amide series lubricant agent uses
Oleamide, the content of oleamide are the 1% of medical macromolecular materials gross mass.Puncturing lever is made of Shooting Technique, tool
Body is the following steps are included: oleamide is added in polycarbonate dry blend, mixed at high speed, double-screw extruding pelletizing, then
Injection molding has the puncturing lever 12 of self-lubricating property to get arriving.
Sealing element 2 is made of the silica gel comprising self-lubricating agent, should include according to the mass fraction comprising the silica gel of self-lubricating agent
Following components:
Sealing element 2 is made up of mould pressing process, specifically includes the following steps: by each of the above-mentioned silica gel comprising self-lubricating agent
Component, which is put into open mill, is kneaded uniformly adjustment roll spacing to 1mm, thin 8 times logical, is uniformly dispersed, vulcanizing agent is then added, in
It is molded sulfidization molding at a temperature of 150 DEG C, vulcanization time is 25min to get to the sealing element 2 with self-lubricating property.
Finally ready sealing element 2 and puncture bar assembly 1 are successively completed with puncture cannula 3 and air intake assembly 4
Obtain endoscope-assistant surgery puncture outfit of the invention.It is punctured made of the medical macromolecular materials comprising sour amide series lubricant agent
Bar 12, it can also lubricate the channel inside puncture cannula when passing in and out puncture cannula 3 other than self-lubricating, guarantee next to use
Smoothness of the surgical instrument in access way.In addition, puncturing lever and hand can be reduced by being added to the sealing element 2 of greasing substance
The resistance of art instrument is without changing its sealing performance.
In conclusion endoscope-assistant surgery puncture outfit of the invention, is combined changing for formula for sealing element and puncture bar assembly
Into, have self-lubricating effect, can in the case that guarantee sealing element sealing performance, make puncturing lever and the smooth disengaging of surgical instrument
Puncture cannula.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above
Change, modification will all be fallen within the scope of claims of the present invention.
Claims (3)
1. a kind of endoscope-assistant surgery puncture outfit, including puncture cannula, sealing element, puncture bar assembly and air intake assembly, the sealing
Part is arranged on the puncture cannula, and the puncture bar assembly is plugged in the puncture cannula after passing through the sealing element, institute
It states air intake assembly to be connected with the puncture cannula, which is characterized in that the sealing element is made of the silica gel comprising self-lubricating agent, institute
State the silica gel comprising self-lubricating agent includes following components according to the mass fraction:
The puncture bar assembly includes puncturing lever pedestal and puncturing lever, and the puncturing lever is the isometrical body of rod, and the puncturing lever
Tail end is connected with the puncturing lever pedestal, and it is in polygonal pyramid shape that the head end of the puncturing lever, which is shunk, and the head end of the puncturing lever passes through
It is plugged on after the sealing element in the puncture cannula, and the puncturing lever pedestal is connected on the puncture cannula；
The puncturing lever is made of the medical macromolecular materials comprising sour amide series lubricant agent, and the acid amide series lubricant agent is adopted
With oleamide, the content of the oleamide is the 1% of the medical macromolecular materials gross mass.
2. a kind of endoscope-assistant surgery puncture outfit according to claim 1, which is characterized in that the sealing element passes through stamper
Skill is made, and is kneaded specifically includes the following steps: each component of the silica gel comprising self-lubricating agent is put into open mill
Even, adjustment roll spacing to 1mm is thin 8 times logical, is uniformly dispersed, vulcanizing agent is then added, be molded sulfidization molding at a temperature of 150 DEG C,
Vulcanization time be 25min to get to self-lubricating property the sealing element.
3. a kind of endoscope-assistant surgery puncture outfit according to claim 1, which is characterized in that the puncturing lever is using injection molding work
Skill is made, specifically includes the following steps: the oleamide is added in polycarbonate dry blend, mixed at high speed, twin-screw
Extruding pelletization, then injection molding to get to self-lubricating property the puncturing lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107768.3A CN109288562B (en) | 2018-09-21 | 2018-09-21 | Puncture outfit for endoscopic surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107768.3A CN109288562B (en) | 2018-09-21 | 2018-09-21 | Puncture outfit for endoscopic surgery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109288562A true CN109288562A (en) | 2019-02-01 |
| CN109288562B CN109288562B (en) | 2021-04-16 |
Family
ID=65163720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811107768.3A Active CN109288562B (en) | 2018-09-21 | 2018-09-21 | Puncture outfit for endoscopic surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109288562B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109717935A (en) * | 2019-03-12 | 2019-05-07 | 青岛大学附属医院 | A kind of laparoscopic trocar for protecting choledochoscope |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101460204A (en) * | 2006-05-31 | 2009-06-17 | 株式会社钟化 | Catheter tube and catheter comprising the tube |
| CN101696302A (en) * | 2009-10-29 | 2010-04-21 | 广州市合诚化学有限公司 | Self-lubricating polypropylene compound material for manufacturing medical injectors |
| WO2010048542A1 (en) * | 2008-10-23 | 2010-04-29 | Michael Patton | Cannula seal |
| CN103189085A (en) * | 2010-10-01 | 2013-07-03 | 莫门蒂夫性能材料股份有限公司 | Self-lubricating pharmaceutical syringe stoppers |
| CN103356269A (en) * | 2012-03-26 | 2013-10-23 | 周星 | Self-lubricating trocar |
| CN203749939U (en) * | 2014-02-26 | 2014-08-06 | 上海康德莱企业发展集团医疗器械有限公司 | Precise flow regulation device |
| CN106221240A (en) * | 2016-08-23 | 2016-12-14 | 内蒙古恒业成有机硅有限公司 | A kind of self-lubricating silicone rubber and preparation method thereof |
| CN207152631U (en) * | 2017-01-23 | 2018-03-30 | 施爱德（厦门）医疗器材有限公司 | Small resistance sealing ring |
-
2018
- 2018-09-21 CN CN201811107768.3A patent/CN109288562B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101460204A (en) * | 2006-05-31 | 2009-06-17 | 株式会社钟化 | Catheter tube and catheter comprising the tube |
| WO2010048542A1 (en) * | 2008-10-23 | 2010-04-29 | Michael Patton | Cannula seal |
| CN101696302A (en) * | 2009-10-29 | 2010-04-21 | 广州市合诚化学有限公司 | Self-lubricating polypropylene compound material for manufacturing medical injectors |
| CN103189085A (en) * | 2010-10-01 | 2013-07-03 | 莫门蒂夫性能材料股份有限公司 | Self-lubricating pharmaceutical syringe stoppers |
| CN103356269A (en) * | 2012-03-26 | 2013-10-23 | 周星 | Self-lubricating trocar |
| CN203749939U (en) * | 2014-02-26 | 2014-08-06 | 上海康德莱企业发展集团医疗器械有限公司 | Precise flow regulation device |
| CN106221240A (en) * | 2016-08-23 | 2016-12-14 | 内蒙古恒业成有机硅有限公司 | A kind of self-lubricating silicone rubber and preparation method thereof |
| CN207152631U (en) * | 2017-01-23 | 2018-03-30 | 施爱德（厦门）医疗器材有限公司 | Small resistance sealing ring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109717935A (en) * | 2019-03-12 | 2019-05-07 | 青岛大学附属医院 | A kind of laparoscopic trocar for protecting choledochoscope |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109288562B (en) | 2021-04-16 |
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