CN109288564B - Disposable laparoscope puncture outfit - Google Patents
Disposable laparoscope puncture outfit Download PDFInfo
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- CN109288564B CN109288564B CN201811108692.6A CN201811108692A CN109288564B CN 109288564 B CN109288564 B CN 109288564B CN 201811108692 A CN201811108692 A CN 201811108692A CN 109288564 B CN109288564 B CN 109288564B
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- puncture
- rod
- puncture rod
- layer
- sealing element
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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
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
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- 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
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- 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 disposable laparoscope puncture outfit, which comprises a puncture casing, a sealing element, a puncture rod assembly and an air inlet assembly, wherein the sealing element is made of silica gel containing self-lubricating agents, the puncture rod assembly comprises a puncture rod base and a puncture rod, the puncture rod is an isometric rod body, the tail end of the puncture rod is connected with the puncture rod base, the head end of the puncture rod shrinks to be conical, the head end of the puncture rod penetrates through the sealing element and then is inserted into the puncture casing, and the puncture rod base is clamped on the puncture casing; the puncture rod is made of SUS304 material; the outer surface of the puncture rod is provided with a solid lubricating layer, and the outer surface of the solid lubricating layer is provided with a liquid lubricating layer. The disposable laparoscope puncture outfit provided by the invention has the advantages that the sealing element and the puncture rod assembly are improved in a combined mode, the self-lubricating effect is achieved, and the puncture rod and surgical instruments can smoothly enter and exit the puncture cannula under the condition that the sealing performance of the sealing element is guaranteed.
Description
Technical Field
The invention relates to a disposable laparoscope puncture outfit, which is a laparoscope matched surgical instrument and is suitable for establishing a working channel in laparoscope examination and operation processes.
Background
With the development of medicine and the improvement of health consciousness of people, the laparoscopic surgery plays more and more important roles in minimally invasive surgery with the advantages of small trauma, quick recovery, light postoperative pain, short hospitalization time and the like, so the clinical application of the minimally invasive surgery advocated by the laparoscopy is more and more extensive.
The principle of the laparoscopic surgery is to use carbon dioxide gas to make artificial pneumoperitoneum as an observation and operation space; puncturing a plurality of small holes of 0.5-1.0 cm on the abdominal wall by using a puncture outfit to establish a passage between the abdominal cavity and the outside; the puncture outfit is inserted with a video system, a light source and other surgical instruments, the conditions inside the abdominal cavity are transmitted to the display through the CCD camera, and a doctor observes in real time through the images on the screen and performs surgical operation.
The puncture outfit generally comprises a puncture casing pipe, a sealing assembly, a puncture rod assembly and an air inlet assembly, wherein the air inlet assembly is connected with the puncture casing pipe, the sealing assembly is arranged on the puncture casing pipe, and the puncture rod assembly penetrates through the sealing assembly to be inserted into the puncture casing pipe when in use. In order to avoid leakage of carbon dioxide gas, the sealing assembly is composed of multi-stage sealing silica gel components to achieve the sealing effect. However, surgical instruments often experience resistance from the seal assembly when accessing the puncture channel, resulting in greater force required by the surgeon to operate the instrument and discomfort to the surgeon's hand over time. Accordingly, the seal assembly may be deformed and not restored in time when subjected to a relatively large tensile force for a long period of time, thereby causing a failure of the seal.
Patent CN204049782 discloses a sealing assembly of a puncture outfit, which is composed of a sealing lower cover, a sealing ring, a sealing upper cover, a sealing lower gland, an elastic sealing element, a supporting element and a sealing upper gland, wherein the elastic sealing element is composed of 5 identical conical elements with notches, the circumferential angle of each element is 225 degrees, and the overlapping angle of every two elements is 153 degrees. The multistage sealing assembly in the puncture outfit brings resistance to the puncture needle and other surgical instruments in the repeated conversion process due to excessive number of sheets and overlarge overlapping area, so that the operation of a doctor is not smooth.
To solve the resistance problem, there are sealing assemblies that are modified and there are sealing assemblies or piercing cannulas that have substances added to them to reduce resistance, but these methods have their own disadvantages to varying degrees.
Patent CN207152631 discloses a small-resistance sealing ring, which is composed of a sealing ring formed by more than two segments and more than two supporting pieces respectively arranged on each segment of the sealing ring. The sealing ring has magnetic strips or magnetic powder on its segments, and the support sheet is made of hard material, such as plastic or metal. In clinical application, the puncture rod is usually made of metal materials, the puncture rod cannot smoothly pass through a sealing ring with magnetic strips or magnetic powder, and the support sheet made of hard materials can also bring resistance to puncture of the puncture rod.
Patent CN105943131 discloses a self-lubricating puncture outfit, which is composed of a puncture cannula, a core rod, a cannula holder, a conversion cap, a core rod holder and a lubricating component. The lubricating assembly comprises a microporous bag and lubricating grease positioned in the microporous bag, the surgical instrument or the core rod penetrates through the working channel, the lubricating grease can be extruded by the microporous bag when the microporous bag is extruded, and the lubricating grease is in contact with the surgical instrument or the core rod to achieve a lubricating effect. In clinical application, the front end of the puncture core rod is mostly of a sharp structure, when the puncture core rod penetrates through the microporous bag, the microporous bag is easily punctured instead of extruded, and lubricating substances can be released in a large amount and flow into a human body to cause harm.
Patent CN202665587 discloses a self-lubricating puncture outfit, which is composed of a puncture rod and a sheath tube, wherein the sheath tube is provided with a medical elastic porous material and a medical lubricant which can absorb, store and release the medical lubricant. When the puncture rod contacts with the lubricating component, the sharp structure of the front section of the puncture rod can damage the medical elastic porous material, especially the medical elastic porous material is damaged more seriously after the puncture rod or the surgical instrument is punctured for many times, the damaged porous material is easy to generate fragments, and the fragments enter the human body and are harmful. In addition, the medical silicone oil is selected as the lubricant, so that the sealing component made of the silicone material is dissolved with the silicone oil, and the sealing performance of the puncture outfit is damaged.
It can be seen that the above-disclosed patents do not address the resistance problem well and continued improvement is needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a disposable laparoscope puncture outfit, which improves a sealing element and a puncture rod assembly in a combined mode, has self-lubricating effect and can ensure that the puncture rod and surgical instruments can smoothly enter and exit a puncture cannula under the condition of ensuring the sealing performance of the sealing element.
The technical scheme for realizing the purpose is as follows: the utility model provides a disposable peritoneoscope puncture ware, includes puncture sleeve pipe, sealing member, puncture rod subassembly and air inlet assembly, the sealing member sets up on the puncture sleeve pipe, puncture rod subassembly passes peg graft behind the sealing member in the puncture sleeve pipe, air inlet assembly with the puncture sleeve pipe links to each other, the sealing member is made by the silica gel that contains from the lubricant, the silica gel that contains from the lubricant includes following component by mass fraction:
the puncture rod assembly comprises a puncture rod base and a puncture rod, the puncture rod is an isometric rod body, the tail end of the puncture rod is connected with the puncture rod base, the head end of the puncture rod contracts to form a conical shape, the head end of the puncture rod penetrates through the sealing element and then is inserted into the puncture sleeve, and the puncture rod base is clamped on the puncture sleeve;
the puncture rod is made of SUS304 material;
the outer surface of the puncture rod is provided with a solid lubricating layer, and the outer surface of the solid lubricating layer is provided with a liquid lubricating layer.
The above-mentioned disposable laparoscope puncture outfit, wherein the sealing element is made by a molding process, specifically comprises the following steps: and (2) putting the components of the silica gel containing the self-lubricating agent into an open mill, uniformly mixing, adjusting the roll spacing to 1mm, thinly passing for 5 times, uniformly dispersing, then adding a vulcanizing agent, and carrying out mould pressing vulcanization molding at the temperature of 170 ℃ for 30min to obtain the sealing element with self-lubricating property.
The above-mentioned disposable laparoscope puncture outfit, wherein the solid lubricating layer is a polydopamine layer, and the polydopamine layer is obtained by immersing a puncture rod made of SUS304 material in dopamine solution, and specifically comprises the following steps: dissolving dopamine in trihydroxyaminomethane hydrochloride with the pH value of 8.5 to form dopamine solution with the concentration of 1mg/ml, then putting a puncture rod made of SUS304 material into the dopamine solution, stirring for 12 hours at room temperature until oxidation and auto-polymerization of dopamine are finished, taking out the puncture rod, forming a polydopamine layer on the surface of the puncture rod, then washing the puncture rod for 2 times by using clear water, and airing.
The disposable laparoscope puncture outfit is characterized in that the liquid lubricating layer is a medical silicone oil layer, and the medical silicone oil layer is formed by coating medical silicone oil on the outer surface of the poly-dopamine layer.
The sealing element made of the silica gel containing the self-lubricating agent can reduce the resistance of a puncture rod and a surgical instrument without changing the sealing performance of the puncture rod and the surgical instrument. In addition, the medical silicon oil layer on the surface of the puncture rod can lubricate an inner channel of the puncture outfit besides self-lubricating, thereby providing convenience for the operation of the following surgical instruments. Even under the special condition that the silicone oil on the surface of the puncture rod is insufficient, the polydopamine layer fixed on the surface of the puncture rod can be exposed to supplement the lubricating performance. The polydopamine has good hydrophilicity and biocompatibility. Moreover, the loading of polydopamine on the outer surface of the puncture rod is a fast-response and mild-condition process. The polydopamine can be well combined with medical silicone oil. The sealing element and the puncture rod assembly are improved in a combined mode, the self-lubricating effect is achieved, and the puncture rod and surgical instruments can smoothly enter and exit the puncture sleeve under the condition that the sealing performance of the sealing element is guaranteed.
Drawings
FIG. 1 is a structural view of a disposable laparoscopic puncture instrument of the present invention;
fig. 2 is a structural view of a puncture rod assembly of the disposable laparoscopic puncture instrument of the present invention.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description is given with reference to the accompanying drawings:
referring to fig. 1 and 2, in a preferred embodiment of the present invention, a disposable laparoscope puncture outfit includes a puncture cannula 3, a sealing member 2, a puncture rod assembly 1 and an air inlet assembly 4, wherein the sealing member 2 is disposed on the puncture cannula 3, the puncture rod assembly 1 includes a puncture rod base 11 and a puncture rod 12, the puncture rod 12 is a constant diameter rod, the tail end of the puncture rod 12 is connected to the puncture rod base 11, the head end of the puncture rod 12 is contracted into a conical shape, the head end of the puncture rod 12 penetrates through the sealing member 2 and then is inserted into the puncture cannula 3, and the puncture rod base 11 is clamped to the puncture cannula 3; the air inlet assembly 4 is connected to the puncture cannula 3.
The puncture rod 12 is made of SUS304 material; the outer surface of the puncture rod 12 is provided with a solid lubricating layer 13, and the outer surface of the solid lubricating layer 13 is provided with a liquid lubricating layer 14.
The solid lubricating layer 13 is a polydopamine layer, the polydopamine layer is obtained by immersing the puncture rod 12 made of SUS304 material in dopamine solution, and the method specifically comprises the following steps: dissolving dopamine in trihydroxyaminomethane hydrochloride with the pH value of 8.5 to form dopamine solution with the concentration of 1mg/ml, then putting the puncture rod 12 made of SUS304 material into the dopamine solution, stirring for 12h at room temperature until dopamine oxidation and self-polymerization are finished, taking out the puncture rod 12, forming a poly-dopamine layer on the surface of the puncture rod 12, then washing the puncture rod for 2 times with clear water, and airing. The liquid lubricating layer 14 is a medical silicon oil layer, and the medical silicon oil layer is formed by coating medical silicon oil on the outer surface of the poly dopamine layer.
The sealing element 2 is made of silica gel containing self-lubricating agent, and the silica gel containing self-lubricating agent comprises the following components in parts by mass:
the sealing element 2 is manufactured by a mould pressing process, and comprises the following steps: and (2) putting the components of the silica gel containing the self-lubricating agent into an open mill, uniformly mixing, adjusting the roll spacing to 1mm, thinly passing for 5 times, uniformly dispersing, adding a vulcanizing agent, and carrying out mould pressing vulcanization molding at the temperature of 170 ℃ for 30min to obtain the sealing element 2 with the self-lubricating property.
And finally, the prepared sealing member 2 and the puncture rod assembly 1 are assembled with the puncture sleeve 3 and the air inlet assembly 4 in sequence to obtain the disposable laparoscopic puncture outfit of the invention, and the sealing member 2 made of silica gel containing self-lubricating agent can reduce the resistance of the puncture rod and surgical instruments without changing the sealing performance of the puncture rod and the surgical instruments. In addition, the medical silicon oil layer 14 on the surface of the puncture rod 12 can lubricate an inner channel of the puncture outfit besides self-lubricating, thereby providing convenience for the operation of the following surgical instruments. Even under the special condition that medical silicone oil on the surface of the puncture rod is insufficient, the polydopamine layer 13 fixed on the surface of the puncture rod can be exposed to supplement the lubricating performance. The polydopamine has good hydrophilicity and biocompatibility. Moreover, the loading of polydopamine on the outer surface of the puncture rod is a fast-response and mild-condition process. The polydopamine can be well combined with medical silicone oil.
In conclusion, the disposable laparoscope puncture outfit provided by the invention has the advantages that the sealing element and the puncture rod assembly are improved in a combined manner, the self-lubricating effect is achieved, and the puncture rod and surgical instruments can smoothly enter and exit the puncture cannula under the condition that the sealing performance of the sealing element is ensured.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (4)
1. The utility model provides a disposable peritoneoscope puncture ware, includes puncture sleeve pipe, sealing member, puncture rod subassembly and air inlet assembly, the sealing member sets up on the puncture sleeve pipe, puncture rod subassembly passes peg graft behind the sealing member in the puncture sleeve pipe, air inlet assembly with the puncture sleeve pipe links to each other, its characterized in that, the sealing member is made by the silica gel that contains from the lubricant, the silica gel that contains from the lubricant includes following component by mass fraction:
the puncture rod assembly comprises a puncture rod base and a puncture rod, the puncture rod is an isometric rod body, the tail end of the puncture rod is connected with the puncture rod base, the head end of the puncture rod contracts to form a conical shape, the head end of the puncture rod penetrates through the sealing element and then is inserted into the puncture sleeve, and the puncture rod base is clamped on the puncture sleeve;
the puncture rod is made of SUS304 material;
the outer surface of the puncture rod is provided with a solid lubricating layer, and the outer surface of the solid lubricating layer is provided with a liquid lubricating layer;
the sealing element with the self-lubricating effect and the puncture rod assembly are combined, so that the puncture rod can smoothly enter and exit the puncture sleeve under the condition that the sealing performance of the sealing element is guaranteed.
2. The single-use laparoscopic puncture instrument according to claim 1, wherein said sealing member is formed by a molding process, comprising the steps of: and (2) putting the components of the silica gel containing the self-lubricating agent into an open mill, uniformly mixing, adjusting the roll spacing to 1mm, thinly passing for 5 times, uniformly dispersing, then adding a vulcanizing agent, and carrying out mould pressing vulcanization molding at the temperature of 170 ℃ for 30min to obtain the sealing element with self-lubricating property.
3. The single-use laparoscopic puncture outfit according to claim 1, wherein said solid lubricating layer is a polydopamine layer obtained by immersing a puncture rod made of SUS304 material in a dopamine solution, comprising the following steps: dissolving dopamine in trihydroxyaminomethane hydrochloride with the pH value of 8.5 to form dopamine solution with the concentration of 1mg/ml, then putting a puncture rod made of SUS304 material into the dopamine solution, stirring for 12 hours at room temperature until oxidation and auto-polymerization of dopamine are finished, taking out the puncture rod, forming a polydopamine layer on the surface of the puncture rod, then washing the puncture rod for 2 times by using clear water, and airing.
4. The single-use laparoscope puncture outfit as recited in claim 3, wherein the liquid lubricating layer is a medical silicone oil layer, and the medical silicone oil layer is formed by coating medical silicone oil on the outer surface of the poly-dopamine layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108692.6A CN109288564B (en) | 2018-09-21 | 2018-09-21 | Disposable laparoscope puncture outfit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108692.6A CN109288564B (en) | 2018-09-21 | 2018-09-21 | Disposable laparoscope puncture outfit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109288564A CN109288564A (en) | 2019-02-01 |
| CN109288564B true CN109288564B (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811108692.6A Active CN109288564B (en) | 2018-09-21 | 2018-09-21 | Disposable laparoscope puncture outfit |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101326791B1 (en) * | 2006-05-31 | 2013-11-08 | 가부시키가이샤 가네카 | Catheter tube and catheter comprising the tube |
| WO2010048542A1 (en) * | 2008-10-23 | 2010-04-29 | Michael Patton | Cannula seal |
| CN103356269A (en) * | 2012-03-26 | 2013-10-23 | 周星 | Self-lubricating trocar |
| CN104194023A (en) * | 2014-08-12 | 2014-12-10 | 东南大学 | Dopamine-based method for improving surface hydrophilicity and biocompatibility of medical polyurethane material |
| 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 |
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2018
- 2018-09-21 CN CN201811108692.6A patent/CN109288564B/en active Active
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